US20120198775A1 - Vehicle door frame structure and method of producing vehicle door frame - Google Patents
Vehicle door frame structure and method of producing vehicle door frame Download PDFInfo
- Publication number
- US20120198775A1 US20120198775A1 US13/446,055 US201213446055A US2012198775A1 US 20120198775 A1 US20120198775 A1 US 20120198775A1 US 201213446055 A US201213446055 A US 201213446055A US 2012198775 A1 US2012198775 A1 US 2012198775A1
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- United States
- Prior art keywords
- glass
- design
- sash
- door
- vehicle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/0463—Conceptual assembling of door, i.e. how door frame parts should be fitted together to form door
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/0401—Upper door structure
- B60J5/0402—Upper door structure window frame details, including sash guides and glass runs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49616—Structural member making
- Y10T29/49622—Vehicular structural member making
Definitions
- the present invention relates to a vehicle door frame structure and a method of producing the vehicle door frame.
- FIG. 9 shows a front left door of a passenger vehicle, viewed from the vehicle exterior side.
- the door 50 is provided with a door panel 51 and a door frame 52 positioned on top of the door panel 51 , and the area which is surrounded by the upper edge of the door panel 51 and the inner edge of the door frame 52 is defined as a window opening 53 .
- a door glass 54 is installed in the window opening 53 to be movable up and down.
- a glass guide portion 55 having a U-shaped (concave-shaped) cross section which is open toward the window opening 53 is formed on the inner periphery of the door frame 52 , and an outer peripheral edge of the door glass 54 enters the glass guide portion 55 when the door glass 54 closes the window opening 53 .
- a glass run 56 made of an elastic material is fitted in and held by the glass guide portion 55 , and the edge of the door glass 54 which has entered the glass guide portion 55 is elastically held by lips 56 a and 56 b of the glass run 56 therebetween from the vehicle interior side and the vehicle exterior side, respectively. Note that FIG.
- the glass guide portion 55 is provided on the vehicle interior side with a side wall portion 55 a which supports the lip 56 a and provided on the vehicle exterior side with a side wall portion 55 b which supports the lip 56 b on the vehicle exterior side.
- the door frame 52 is provided with an upper sash 57 which forms the upper edge of the door and a side sash 58 which extends upwards from the rear of the door panel 51 .
- an upper sash 57 which forms the upper edge of the door and a side sash 58 which extends upwards from the rear of the door panel 51 .
- a cross-section structure of the side sash 58 is shown in FIG. 10
- the upper sash 57 also has a similar door glass holding structure composed of the glass guide portion 55 and the glass run 56 .
- the width for holding the door glass 54 by the glass guide portion 55 (the amount of overlapping between the door glass 54 and the side wall portions 55 a and 55 b ) in the upper sash 57 and the width for holding the door glass 54 by the glass guide portion 55 (the amount of overlapping between the door glass 54 and the side wall portions 55 a and 55 b ) in the side sash 58 are made different from each other.
- the side sash 58 it is sometimes required to enhance the retention capability by increasing the width for holding the door glass by the glass guide portion 55 so as to prevent the door glass 54 from vibrating and rattling in a half-open state, whereas in the upper sash 57 it is sometimes required to reduce the width for holding the door glass by the glass guide portion 55 (especially the side wall portion 55 b ) so as to narrow the width of the design portion outwardly exposed.
- a frame portion of the upper sash and a frame portion of the side sash are formed as separate members having mutually different glass-holding widths in the glass guide portion and joined to each other at a corner portion of the door frame which corresponds to the boundary between the upper sash and the side sash.
- the present invention provides a vehicle door frame structure which is low in production cost, high in productivity, and superior in flexibility of the setting of the cross sectional shape of the frame at different portions in the lengthwise direction of the frame, especially in the width of the design portion.
- the present invention provides a vehicle door frame structure which includes an upper sash portion that holds an upper edge of an upward/downward movable door glass, a side sash portion that holds a side edge of the door glass and a corner portion positioned at a boundary between the upper sash portion and the side sash portion, the vehicle door frame structure including a frame body which includes a glass-opposing portion that is opposed to an edge of the door glass, a design portion that is positioned on one side of the glass-opposing portion on a vehicle exterior side and a tubular portion that is positioned on the other side of the glass-opposing portion on a vehicle interior side, wherein the frame body is structured as a single member which is continuous from the upper sash portion to the side sash portion by forming a glass guide portion from the glass-opposing portion, the design portion and the tubular portion so that the glass guide portion has a concave-shaped cross section surrounding the edge of the door glass, by forming the tubular portion to have a uniform cross
- the design portion in the glass guide portion formation area vary in width
- variations can be given to the cross sectional shape of the glass guide portion, more specifically to the glass holding width.
- the glass holding width can be increased in the side sash portion while the width of the design portion of the door frame can be reduced in the upper sash portion.
- the present invention also provides a method of producing a vehicle door frame which includes an upper sash portion that holds an upper edge of an upward/downward movable door glass, a side sash portion that holds a side edge of the door glass and a corner portion positioned at a boundary between the upper sash portion and the side sash portion, the method including forming a frame body which is continuous from the upper sash portion to the side sash portion by forming a linear member from a metal plate which has a length extending at least from the upper sash portion to the side sash portion so that the linear member has an uniform cross sectional shape which includes a glass-opposing portion that is opposed to an edge of the door glass, a design portion that is positioned on one side of the glass-opposing portion on a vehicle exterior side, a tubular portion that is positioned on the other side of the glass-opposing portion on a vehicle interior side, and a glass guide portion which has a concave-shaped cross section surrounding the edge of the door
- the production cost can be kept down and the productivity is excellent compared with a structure in which separate frames are joined to each other at a corner of the door because the body of the door frame that includes the design portion, the tubular portion, the glass-opposing portion and the glass guide portion is configured from the frame body that consists of a single member which is continuous from the upper sash portion to the side sash portion.
- the vehicle door frame structure according to the present invention is superior in ensuring the strength of the door frame.
- an appropriate width of the design portion can be easily set for each portion of the frame by making the design portion in the frame body vary in width at least one area along length of the design portion. For instance, by making the design portion in the glass guide portion formation area vary in width, variations can be given to the width for holding the door glass by the glass guide portion.
- FIG. 1 is an exploded perspective view a door frame to which the present invention has been applied;
- FIG. 2 is a perspective view showing a cross sectional shape of a portion of an inner frame which serves as an element of the door frame shown in FIG. 1 ;
- FIG. 3 is across sectional view of the upper sash portion of the inner frame, taken along the line A-A shown in FIG. 1 ;
- FIG. 4 is a cross sectional view of the rear side sash portion of the inner frame, taken along the line B-B shown in FIG. 1 ;
- FIG. 5 is an enlarged perspective view of a front corner portion of the inner frame
- FIG. 6 is an enlarged perspective view of a portion of the door frame in the vicinity of the front corner portion in a completed state of the door frame;
- FIG. 7 is an enlarged perspective view of the rear corner portion of the inner frame
- FIG. 8 is an enlarged perspective view of a portion of the door frame in the vicinity of the rear corner portion in a completed state of the door frame;
- FIG. 9 is a diagram showing an outline structure of a vehicle door.
- FIG. 10 is a cross sectional view taken along the line C-C shown in FIG. 9 , showing an example of a conventional door frame.
- a door frame 10 that is shown in FIG. 1 in an exploded state is a portion corresponding to the door frame 52 of the door 50 that has been described above with reference to FIG. 9 .
- the door frame 10 is applied to a front right door of a passenger vehicle.
- the door frame 10 is composed of an inner frame (frame body) 11 , an exterior member 12 , a front corner patch 13 , a rear corner patch 14 and a reinforcement member 15 .
- the inner frame 11 is formed of a sheet metal material; firstly formed into a linear member having the cross sectional shape shown in FIGS. 2 through 4 by roll forming process, and subsequently deformed by bending at a front corner portion H 1 and a rear corner portion H 2 at intermediate points in the lengthwise direction to form a front side sash portion 11 X, an upper sash side portion 11 Y and a rear side sash portion 11 Z.
- the area surrounded by the front side sash portion 11 X, the upper sash side portion 11 Y and the rear side sash portion 11 Z is defined as a window opening 16 in which a door glass G ( FIGS. 3 and 4 ) is moved up and down.
- the side of the inner frame 11 which faces the window opening 16 is referred to as the inner periphery of the inner frame 11 (the door frame 10 ) and the opposite side of the inner frame 11 from the inner periphery thereof is referred to as the outer periphery of the inner frame 11 .
- the lower parts of the front side sash portion 11 X and the rear side sash portion 11 Z are fixed to a door panel not shown in the drawings.
- the inner frame 11 is provided with a tubular portion 11 a having a closed cross sectional shape which is positioned on the vehicle interior side; a pair of planate portions (glass-opposing portion) 11 b and 11 c which extend toward the vehicle exterior side in a direction substantially parallel to the tubular portion 11 a ; an outer-periphery design portion 11 d which is formed by bending the end of the planate portion 11 b on the vehicle exterior side toward the outer periphery of the inner frame 11 ; and an inner-periphery design portion (glass guide portion formation area in the design portion) 11 e which is formed by bending the end of the planate portion 11 c on the vehicle exterior side toward the inner periphery of the inner frame 11 .
- Part of the tubular portion 11 a constitutes an upright wall portion 11 f which faces the inner-periphery design portion 11 e , and a concave-shaped cross sectional portion which is open toward the inner periphery of the inner frame 11 (to the window opening 16 ) constitutes the glass guide portion 20 with the inner-periphery design portion 11 e and the upright wall portion 11 f as side walls and with the planate portion 11 c as the base surface.
- a glass run made of an elastic material is held in the glass guide portion 20 . Similar to the glass run 56 shown in FIG.
- the outer-periphery design portion 11 d and the inner-periphery design portion 11 e are aligned to be substantially flush with each other so as to constitute a design portion which faces toward the vehicle external side.
- the outer-periphery design portion 11 d is cut out, as shown in FIGS. 4 and 7 ; instead, an outer-periphery design portion 15 a ( FIG. 4 ) of the reinforcement member 15 and the inner-periphery design portion 11 e constitute a design portion which faces toward the vehicle exterior side.
- the design portion (the outer-periphery design portion 11 d and the inner-periphery design portion 11 e ) and a part of the planate portions 11 b and 11 c are cut out at each of the front corner portion H 1 , which corresponds to the boundary between the front side sash portion 11 X and the upper sash portion 11 Y, and the rear corner portion H 2 , which corresponds to the boundary between the upper sash portion 11 Y and the rear side sash portion 11 Z, so that only the entire part of the tubular portion 11 a and part of the planate portions 11 b and 11 c remain.
- This cutting out of the design portion is carried out after bending process for forming each corner portion H 1 and H 2 is performed on the inner frame 11 , thereby removing improperly deformed portions such as wrinkles created by the aforementioned bending process. Since the tubular portion 11 a remains at each corner portion H 1 and H 2 , the inner frame 11 as a whole can secure a sufficient strength even if the design portion is cut out.
- the front corner patch 13 and the rear corner patch 14 are installed to the front corner portion H 1 and the rear corner portion H 2 of the inner frame 11 , respectively.
- the front corner patch 13 is provided with a connection design portion 13 a (partly shown in FIGS. 1 and 6 ) which is substantially flush with the outer-periphery design portion 11 d and the inner-periphery design portion 11 e of the inner frame 11 in a state where the front corner patch 13 is fixed to the front corner portion H 1 .
- the rear corner patch 14 is provided with a connection design portion 14 a (partly shown in FIGS.
- the exterior member 12 is brought into contact with the design portions ( 11 d , 11 e , 13 a , 14 a and 15 a ) of the inner frame 11 , the front and rear corner patches 13 and 14 and the reinforcement member 15 from the vehicle external side and fixed thereto by hemming, in which both edges of the exterior member 12 are folded back toward the vehicle interior side.
- each hemmed portion 12 b and 12 c in each of the front side portion 12 X and the upper portion 12 Y is substantially constant over the exterior member 12 in the lengthwise direction thereof, however the folding-back amount (width) of the hemmed portion 12 b and (or) the hemmed portion 12 c in the front side portion 12 X and (or) the upper portion 12 Y can vary.
- the rear side portion 12 Z of the exterior member 12 is joined to the inner frame 11 by clamping the inner-periphery design portion 11 e with the hemmed portion 12 c that is formed by folding the inner peripheral edge of a wide design surface 12 a -W back toward the vehicle interior side with the wide design surface 12 a -W brought in contact with vehicle external side surfaces of the outer-periphery design portion 15 a of the reinforcement member 15 and the inner-periphery design portion 11 e of the inner frame 11 so as to extend over these vehicle external side surfaces.
- the exterior member 12 and the front corner patch 13 are joined to each other by clamping the connection design portion 13 a of the front corner patch 13 with the hemmed portions 12 b and 12 c of each of the front side portion 12 X and the upper portion 12 Y (see FIG. 6 ).
- the exterior member 12 and the rear corner patch 14 are joined to each other by clamping the connection design portion 14 a of the rear corner patch 14 with the hemmed portions 12 b and 12 c of each of the upper portion 12 Y and the rear side portion 12 Z (see FIG. 8 ).
- the outer-periphery design portion 11 d and the inner-periphery design portion 11 e are cut out at the front corner portion H 1 and the rear corner portion H 2 and the outer-periphery design portion 11 d is cut out at the rear side sash portion 11 Z; however, other parts of the inner frame 11 , especially the tubular portion 11 a basically has a uniform cross sectional shape over the entirety of the inner frame 11 in the lengthwise direction thereof.
- the width (amount of projection from the planate portion 11 c in a direction toward the inner periphery of the frame) D 2 in the rear side sash portion 11 Z is set to be greater than the width (amount of projection from the planate portion 11 c in a direction toward the inner periphery of the frame) D 1 in the upper sash portion 11 Y as can be seen from a comparison between FIGS. 3 and 4 .
- the overlapping width E 1 between the door glass G which enters the glass guide portion 20 and the inner-periphery design portion 11 e in the upper sash portion 11 Y, and the overlapping width E 2 between the door glass G which enters the glass guide portion 20 and the inner-periphery design portion 11 e in the rear side sash portion 11 Z are mutually different, i.e., the condition E 1 ⁇ E 2 is attained.
- the width (E 2 ) for holding the door glass G by the glass guide portion 20 in the rear side sash portion 11 Z becomes greater than the width (E 1 ) for holding the door glass G by the glass guide portion 20 in the upper sash portion 11 Y.
- the installation of the glass run (not shown) to the glass guide portion 20 increases the holding strength for the door glass G to thereby make it possible to reliably prevent the door glass G from vibrating and rattling in the rear side sash portion 11 Z.
- the width of inner-periphery design portion 11 e is reduced, which makes it possible to narrow the design portion, thereby increasing the degree of freedom in design of the door frame 10 . Since the door glass G is in the fully closed state when the upper edge of the door glass G enters the glass guide portion 20 of the upper sash portion 11 Y, the door glass G can be held with a narrow holding width (E 1 ) with a sufficient degree of stability, unlike the rear side sash portion 11 Z that is required to hold the door glass G even in a half-open state thereof.
- the width of the inner periphery design portion 11 e can be made to be substantially uniform or vary gradually within the range of each of the front side sash portion 11 X, the upper sash portion 11 Y and the rear side sash portion 11 Z.
- the present invention is not limited to this embodiment.
- the inner frame 11 includes the front side sash portion 11 X that bends at the front corner portion H 1 with respect to the upper sash portion 11 Y in the present embodiment of the door frame 10
- the present invention can also be applied to a type of door frame in which the inner frame includes no bent portion corresponding to the front corner portion H 1 and in which the upper sash portion is gently curved to be connected to a door panel.
- the reinforcement member 15 that is a separate member from the inner frame 11 is used for the formation of a design portion at the rear side sash portion 11 Z of the inner frame 11 in the present embodiment, it is possible to form the design portion solely by the inner frame 11 in a similar manner to the upper sash portion 11 Y. More specifically, it is possible to leave the outer-periphery design portion 11 d without cutting out the rear side sash portion 11 Z to form the design portion from the outer-periphery design portion 11 d and the inner-periphery design portion 11 e.
- tubular portion 11 a of the inner frame 11 of the present embodiment is formed to have a closed cross section
- the present invention can also be applied to a door frame provided with a tubular portion having no closed cross section.
- the present invention relates to a door frame structure applied to a vehicle such as an automobile and a method of producing the door frame, and a reduction in production cost, an improvement in productivity and an improvement in strength of the door frame can be achieved by forming the body of the door frame from a frame body consisting of a single member which is continuous from the upper sash portion to the side sash portion.
- the degree of freedom in vehicle design can be increased by setting an appropriate width of the design portion at each portion of the frame by making the width of the design portion in the frame body vary at least one point in the lengthwise direction of the design portion.
Abstract
A door frame, a frame body which includes a glass opposing portion, a design portion positioned on one side of the glass opposing portion on the vehicle exterior side, a tubular portion positioned on the other side of the glass opposing portion on the vehicle interior side, and a glass guide portion having a concave cross section surrounding the edge of the door glass, is structured as a single member which is continuous from an upper sash portion to a side sash portion by having a uniform cross section from the upper to side sash portions, and by a bending process performed on the corner portion. The width of the design portion of the frame varies at least one area along the length thereof and the design portion of the frame body is covered with an exterior member.
Description
- This is a continuation of International Application No. PCT/JP2010/067722, with an international filing date of Oct. 8, 2010, which is herein incorporated by reference in its entirety.
- The present invention relates to a vehicle door frame structure and a method of producing the vehicle door frame.
-
FIG. 9 shows a front left door of a passenger vehicle, viewed from the vehicle exterior side. The door 50 is provided with adoor panel 51 and adoor frame 52 positioned on top of thedoor panel 51, and the area which is surrounded by the upper edge of thedoor panel 51 and the inner edge of thedoor frame 52 is defined as awindow opening 53. Adoor glass 54 is installed in the window opening 53 to be movable up and down. - As shown in
FIG. 10 , aglass guide portion 55 having a U-shaped (concave-shaped) cross section which is open toward thewindow opening 53 is formed on the inner periphery of thedoor frame 52, and an outer peripheral edge of thedoor glass 54 enters theglass guide portion 55 when thedoor glass 54 closes the window opening 53. Aglass run 56 made of an elastic material is fitted in and held by theglass guide portion 55, and the edge of thedoor glass 54 which has entered theglass guide portion 55 is elastically held bylips glass run 56 therebetween from the vehicle interior side and the vehicle exterior side, respectively. Note thatFIG. 10 shows thelips lips door glass 54; thelips door glass 54. Theglass guide portion 55 is provided on the vehicle interior side with aside wall portion 55 a which supports thelip 56 a and provided on the vehicle exterior side with aside wall portion 55 b which supports thelip 56 b on the vehicle exterior side. - The
door frame 52 is provided with anupper sash 57 which forms the upper edge of the door and aside sash 58 which extends upwards from the rear of thedoor panel 51. Although a cross-section structure of theside sash 58 is shown inFIG. 10 , theupper sash 57 also has a similar door glass holding structure composed of theglass guide portion 55 and theglass run 56. In addition, it is sometimes the case that the width for holding thedoor glass 54 by the glass guide portion 55 (the amount of overlapping between thedoor glass 54 and theside wall portions upper sash 57 and the width for holding thedoor glass 54 by the glass guide portion 55 (the amount of overlapping between thedoor glass 54 and theside wall portions side sash 58 are made different from each other. For instance, in theside sash 58, it is sometimes required to enhance the retention capability by increasing the width for holding the door glass by theglass guide portion 55 so as to prevent thedoor glass 54 from vibrating and rattling in a half-open state, whereas in theupper sash 57 it is sometimes required to reduce the width for holding the door glass by the glass guide portion 55 (especially theside wall portion 55 b) so as to narrow the width of the design portion outwardly exposed. - To satisfy such demands, in
Patent Literature 1, a frame portion of the upper sash and a frame portion of the side sash are formed as separate members having mutually different glass-holding widths in the glass guide portion and joined to each other at a corner portion of the door frame which corresponds to the boundary between the upper sash and the side sash. -
- Patent literature 1: Japanese Unexamined Patent Publication 2007-137200
- To form a frame which includes the glass guide portion from two separate members, one for the upper sash and the other for the side sash, and thereafter to join these two separate members to each other is costly and troublesome to produce, and reduction thereof has been desired. Accordingly, the present invention provides a vehicle door frame structure which is low in production cost, high in productivity, and superior in flexibility of the setting of the cross sectional shape of the frame at different portions in the lengthwise direction of the frame, especially in the width of the design portion.
- The present invention provides a vehicle door frame structure which includes an upper sash portion that holds an upper edge of an upward/downward movable door glass, a side sash portion that holds a side edge of the door glass and a corner portion positioned at a boundary between the upper sash portion and the side sash portion, the vehicle door frame structure including a frame body which includes a glass-opposing portion that is opposed to an edge of the door glass, a design portion that is positioned on one side of the glass-opposing portion on a vehicle exterior side and a tubular portion that is positioned on the other side of the glass-opposing portion on a vehicle interior side, wherein the frame body is structured as a single member which is continuous from the upper sash portion to the side sash portion by forming a glass guide portion from the glass-opposing portion, the design portion and the tubular portion so that the glass guide portion has a concave-shaped cross section surrounding the edge of the door glass, by forming the tubular portion to have a uniform cross section over a range from the upper sash portion to the side sash portion, and by performing a bending process on the corner portion; and an exterior member which covers the design portion of each of the upper sash portion and the side sash portion of the frame body from the vehicle exterior side, wherein the frame body is configured such that a width of the design portion varies at at least one area along the length of the design portion.
- In the frame body, by making the design portion in the glass guide portion formation area vary in width, variations can be given to the cross sectional shape of the glass guide portion, more specifically to the glass holding width. For instance, by making the width of the design portion in the glass guide portion formation area greater in the side sash portion than in the upper sash portion, the glass holding width can be increased in the side sash portion while the width of the design portion of the door frame can be reduced in the upper sash portion.
- It is desirable to cut out the design portion at the corner portion between the upper sash portion and the side sash portion.
- The present invention also provides a method of producing a vehicle door frame which includes an upper sash portion that holds an upper edge of an upward/downward movable door glass, a side sash portion that holds a side edge of the door glass and a corner portion positioned at a boundary between the upper sash portion and the side sash portion, the method including forming a frame body which is continuous from the upper sash portion to the side sash portion by forming a linear member from a metal plate which has a length extending at least from the upper sash portion to the side sash portion so that the linear member has an uniform cross sectional shape which includes a glass-opposing portion that is opposed to an edge of the door glass, a design portion that is positioned on one side of the glass-opposing portion on a vehicle exterior side, a tubular portion that is positioned on the other side of the glass-opposing portion on a vehicle interior side, and a glass guide portion which has a concave-shaped cross section surrounding the edge of the door glass by the glass-opposing portion, the design portion and the tubular portion; and by bending the linear member at the corner portion; performing a process of making a width of the design portion of the frame body vary at least one area along length of the design portion; and covering the design portion of the frame body with an exterior member from the vehicle exterior side.
- According to the present invention of the above, the production cost can be kept down and the productivity is excellent compared with a structure in which separate frames are joined to each other at a corner of the door because the body of the door frame that includes the design portion, the tubular portion, the glass-opposing portion and the glass guide portion is configured from the frame body that consists of a single member which is continuous from the upper sash portion to the side sash portion. In addition, the vehicle door frame structure according to the present invention is superior in ensuring the strength of the door frame. Additionally, an appropriate width of the design portion can be easily set for each portion of the frame by making the design portion in the frame body vary in width at least one area along length of the design portion. For instance, by making the design portion in the glass guide portion formation area vary in width, variations can be given to the width for holding the door glass by the glass guide portion.
-
FIG. 1 is an exploded perspective view a door frame to which the present invention has been applied; -
FIG. 2 is a perspective view showing a cross sectional shape of a portion of an inner frame which serves as an element of the door frame shown inFIG. 1 ; -
FIG. 3 is across sectional view of the upper sash portion of the inner frame, taken along the line A-A shown inFIG. 1 ; -
FIG. 4 is a cross sectional view of the rear side sash portion of the inner frame, taken along the line B-B shown inFIG. 1 ; -
FIG. 5 is an enlarged perspective view of a front corner portion of the inner frame; -
FIG. 6 is an enlarged perspective view of a portion of the door frame in the vicinity of the front corner portion in a completed state of the door frame; -
FIG. 7 is an enlarged perspective view of the rear corner portion of the inner frame; -
FIG. 8 is an enlarged perspective view of a portion of the door frame in the vicinity of the rear corner portion in a completed state of the door frame; -
FIG. 9 is a diagram showing an outline structure of a vehicle door; and -
FIG. 10 is a cross sectional view taken along the line C-C shown inFIG. 9 , showing an example of a conventional door frame. - A
door frame 10 that is shown inFIG. 1 in an exploded state is a portion corresponding to thedoor frame 52 of the door 50 that has been described above with reference toFIG. 9 . Thedoor frame 10 is applied to a front right door of a passenger vehicle. Thedoor frame 10 is composed of an inner frame (frame body) 11, anexterior member 12, afront corner patch 13, arear corner patch 14 and areinforcement member 15. - The
inner frame 11 is formed of a sheet metal material; firstly formed into a linear member having the cross sectional shape shown inFIGS. 2 through 4 by roll forming process, and subsequently deformed by bending at a front corner portion H1 and a rear corner portion H2 at intermediate points in the lengthwise direction to form a front sidesash portion 11X, an uppersash side portion 11Y and a rear sidesash portion 11Z. The area surrounded by the front sidesash portion 11X, the uppersash side portion 11Y and the rear sidesash portion 11Z is defined as a window opening 16 in which a door glass G (FIGS. 3 and 4 ) is moved up and down. In the following descriptions, the side of theinner frame 11 which faces thewindow opening 16 is referred to as the inner periphery of the inner frame 11 (the door frame 10) and the opposite side of theinner frame 11 from the inner periphery thereof is referred to as the outer periphery of theinner frame 11. After the completion of thedoor frame 10, the lower parts of the front sidesash portion 11X and the rear sidesash portion 11Z are fixed to a door panel not shown in the drawings. - As shown in
FIGS. 2 through 4 , theinner frame 11 is provided with atubular portion 11 a having a closed cross sectional shape which is positioned on the vehicle interior side; a pair of planate portions (glass-opposing portion) 11 b and 11 c which extend toward the vehicle exterior side in a direction substantially parallel to thetubular portion 11 a; an outer-periphery design portion 11 d which is formed by bending the end of theplanate portion 11 b on the vehicle exterior side toward the outer periphery of theinner frame 11; and an inner-periphery design portion (glass guide portion formation area in the design portion) 11 e which is formed by bending the end of theplanate portion 11 c on the vehicle exterior side toward the inner periphery of theinner frame 11. In other words, theinner frame 11 has a structure such that thetubular portion 11 a, which is positioned on the vehicle interior side, and thedesign portions planate portions tubular portion 11 a constitutes anupright wall portion 11 f which faces the inner-periphery design portion 11 e, and a concave-shaped cross sectional portion which is open toward the inner periphery of the inner frame 11 (to the window opening 16) constitutes theglass guide portion 20 with the inner-periphery design portion 11 e and theupright wall portion 11 f as side walls and with theplanate portion 11 c as the base surface. Although not shown in the drawings, a glass run made of an elastic material is held in theglass guide portion 20. Similar to theglass run 56 shown inFIG. 10 , this glass run has lips which elastically hold, from the vehicle interior side and the vehicle exterior side, both sides of an edge of the door glass G which has entered theglass guide portion 20. Astepped portion 11 g is formed on theupright wall portion 11 f as a retainer which retains the glass run. - As shown in
FIGS. 2 , 3 and 5, in the front sidesash portion 11X and the uppersash portion 11Y of theinner frame 11, the outer-periphery design portion 11 d and the inner-periphery design portion 11 e are aligned to be substantially flush with each other so as to constitute a design portion which faces toward the vehicle external side. On the other hand, in the rear sidesash portion 11Z, the outer-periphery design portion 11 d is cut out, as shown inFIGS. 4 and 7 ; instead, an outer-periphery design portion 15 a (FIG. 4 ) of thereinforcement member 15 and the inner-periphery design portion 11 e constitute a design portion which faces toward the vehicle exterior side. As shown inFIG. 4 , thereinforcement member 15 is provided with asupport plate portion 15 b which extends along theplanate portion 11 b of theinner frame 11, and the outer-periphery design portion 15 a faces toward the vehicle exterior side at a position away from the inner-periphery design portion 11 e with thesupport plate portion 15 b fixed to theplanate portion 11 b. - As shown in
FIGS. 5 and 7 , in theinner frame 11, the design portion (the outer-periphery design portion 11 d and the inner-periphery design portion 11 e) and a part of theplanate portions side sash portion 11X and theupper sash portion 11Y, and the rear corner portion H2, which corresponds to the boundary between theupper sash portion 11Y and the rear sidesash portion 11Z, so that only the entire part of thetubular portion 11 a and part of theplanate portions inner frame 11, thereby removing improperly deformed portions such as wrinkles created by the aforementioned bending process. Since thetubular portion 11 a remains at each corner portion H1 and H2, theinner frame 11 as a whole can secure a sufficient strength even if the design portion is cut out. - The
front corner patch 13 and therear corner patch 14 are installed to the front corner portion H1 and the rear corner portion H2 of theinner frame 11, respectively. Thefront corner patch 13 is provided with aconnection design portion 13 a (partly shown inFIGS. 1 and 6 ) which is substantially flush with the outer-periphery design portion 11 d and the inner-periphery design portion 11 e of theinner frame 11 in a state where thefront corner patch 13 is fixed to the front corner portion H1. Therear corner patch 14 is provided with aconnection design portion 14 a (partly shown inFIGS. 1 and 8 ) which is substantially flush with the inner-periphery design portion 11 e of theinner frame 11 and the outer-periphery design portion 15 a of thereinforcement member 15 in a state where therear corner patch 14 is fixed to the rear corner portion H2. - The
exterior member 12 for covering these design portions is installed in a state where eachcorner patch reinforcement member 15 are installed to theinner frame 11 as described above. As shown inFIG. 1 , theexterior member 12 is provided with afront side portion 12X, anupper portion 12Y and arear side portion 12Z which are formed to correspond to the frontside sash portion 11X, theupper sash portion 11Y and the rearside sash portion 11Z of theinner frame 11, respectively. Theexterior member 12 is brought into contact with the design portions (11 d, 11 e, 13 a, 14 a and 15 a) of theinner frame 11, the front andrear corner patches reinforcement member 15 from the vehicle external side and fixed thereto by hemming, in which both edges of theexterior member 12 are folded back toward the vehicle interior side. - Specifically, the
exterior member 12 is formed so that therear side portion 12Z is greater in width than thefront side portion 12X and theupper portion 12Y. As shown inFIG. 3 , theupper portion 12Y of theexterior member 12 is joined to theupper sash portion 11Y of theinner frame 11 by clamping the outer-periphery design portion 11 d and the inner-periphery design portion 11 e with hemmedportions design surface 12 a toward the vehicle interior side with thedesign surface 12 a brought in contact with vehicle external side surfaces of the outer-periphery design portion 11 d and the inner-periphery design portion 11 e. Although a detailed cross sectional shape is omitted, the joining structure of thefront side portion 12X of theexterior member 12 to the frontside sash portion 11X is similar to this joining structure (seeFIG. 6 ). The folding-back amount (width) of each hemmedportion front side portion 12X and theupper portion 12Y is substantially constant over theexterior member 12 in the lengthwise direction thereof, however the folding-back amount (width) of the hemmedportion 12 b and (or) the hemmedportion 12 c in thefront side portion 12X and (or) theupper portion 12Y can vary. - As shown in
FIG. 4 , therear side portion 12Z of theexterior member 12 is joined to theinner frame 11 by clamping the inner-periphery design portion 11 e with the hemmedportion 12 c that is formed by folding the inner peripheral edge of awide design surface 12 a-W back toward the vehicle interior side with thewide design surface 12 a-W brought in contact with vehicle external side surfaces of the outer-periphery design portion 15 a of thereinforcement member 15 and the inner-periphery design portion 11 e of theinner frame 11 so as to extend over these vehicle external side surfaces. On the other hand, therear side portion 12Z of theexterior member 12 is joined to thereinforcement member 15 by clamping the outer-periphery design portion 15 a with the hemmedportion 12 b that is formed by folding back the outer peripheral edge of thewide design surface 12 a-W toward the vehicle interior side. The folding-back amount (width) of each hemmedportion rear side portion 12Z is substantially constant over theexterior member 12 in the lengthwise direction thereof, however the folding-back amount (width) of the hemmedportion 12 b and (or) the hemmedportion 12 c in therear side portion 12Z can vary. - Additionally, in the front corner portion H1, the
exterior member 12 and thefront corner patch 13 are joined to each other by clamping theconnection design portion 13 a of thefront corner patch 13 with the hemmedportions front side portion 12X and theupper portion 12Y (seeFIG. 6 ). In the rear corner portion H2, theexterior member 12 and therear corner patch 14 are joined to each other by clamping theconnection design portion 14 a of therear corner patch 14 with the hemmedportions upper portion 12Y and therear side portion 12Z (seeFIG. 8 ). - As described above, since the
door frame 10 has a structure such that the basic form of the door frame is configured by theinner frame 11, which is composed of a single member, over the whole of the front and rear side sash portions and the upper sash portion and that only the outer surface of the design portion of thedoor frame 10 is covered by theexterior member 12, thedoor frame 10 can be easily assembled and produced at low cost and is superior in strength compared with a structure in which separate frame members are joined to each other at a door corner portion. - In the
inner frame 11, the outer-periphery design portion 11 d and the inner-periphery design portion 11 e are cut out at the front corner portion H1 and the rear corner portion H2 and the outer-periphery design portion 11 d is cut out at the rearside sash portion 11Z; however, other parts of theinner frame 11, especially thetubular portion 11 a basically has a uniform cross sectional shape over the entirety of theinner frame 11 in the lengthwise direction thereof. Whereas, as for the inner-periphery design portion 11 e that constitutes a side wall of theglass guide portion 20 on the vehicle exterior side, the width (amount of projection from theplanate portion 11 c in a direction toward the inner periphery of the frame) D2 in the rearside sash portion 11Z is set to be greater than the width (amount of projection from theplanate portion 11 c in a direction toward the inner periphery of the frame) D1 in theupper sash portion 11Y as can be seen from a comparison betweenFIGS. 3 and 4 . Due to this difference between the width D1 and the width D2, the overlapping width E1 between the door glass G which enters theglass guide portion 20 and the inner-periphery design portion 11 e in theupper sash portion 11Y, and the overlapping width E2 between the door glass G which enters theglass guide portion 20 and the inner-periphery design portion 11 e in the rearside sash portion 11Z are mutually different, i.e., the condition E1<E2 is attained. In other words, since the inner-periphery design portion 11 e constitutes one side wall of theglass guide portion 20, the width (E2) for holding the door glass G by theglass guide portion 20 in the rearside sash portion 11Z becomes greater than the width (E1) for holding the door glass G by theglass guide portion 20 in theupper sash portion 11Y. With this structure, the installation of the glass run (not shown) to theglass guide portion 20 increases the holding strength for the door glass G to thereby make it possible to reliably prevent the door glass G from vibrating and rattling in the rearside sash portion 11Z. On the other hand, in theupper sash portion 11Y, the width of inner-periphery design portion 11 e is reduced, which makes it possible to narrow the design portion, thereby increasing the degree of freedom in design of thedoor frame 10. Since the door glass G is in the fully closed state when the upper edge of the door glass G enters theglass guide portion 20 of theupper sash portion 11Y, the door glass G can be held with a narrow holding width (E1) with a sufficient degree of stability, unlike the rearside sash portion 11Z that is required to hold the door glass G even in a half-open state thereof. - As a technique for making the inner-
periphery design portion 11 e of theupper sash portion 11Y and the inner-periphery design portion 11 e of the rearside sash portion 11Z different in width from each other, it is possible to first form the inner-periphery design portion 11 e of the entireinner frame 11 with the wide width D2 for the rearside sash portion 11Z and thereafter cut out a part of the inner-periphery design portion 11 e in the widthwise direction thereof to form the inner-periphery design portion 11 e with the narrow width D1 for theupper sash portion 11Y. Alternatively, it is possible to first form the inner-periphery design portion 11 e of the entireinner frame 11 with the narrow width D1 for theupper sash portion 11Y and thereafter add a width-widening part thereto to form the inner-periphery design portion 11 e with the wide width D2 for the rearside sash portion 11Z. From the viewpoint of productivity and strength, it is desirable to adopt the former technique, in which the wide-width design portion is partly cut out. - The width of the inner
periphery design portion 11 e can be made to be substantially uniform or vary gradually within the range of each of the frontside sash portion 11X, theupper sash portion 11Y and the rearside sash portion 11Z. - In addition, it is possible to provide variations to the width of the design portion of the
inner frame 11 by partly cutting out the outer-periphery design portion 11 d instead of the inner-periphery design portion 11 e. - Although described above based on the illustrated embodiment, the present invention is not limited to this embodiment. For instance, although the
inner frame 11 includes the frontside sash portion 11X that bends at the front corner portion H1 with respect to theupper sash portion 11Y in the present embodiment of thedoor frame 10, the present invention can also be applied to a type of door frame in which the inner frame includes no bent portion corresponding to the front corner portion H1 and in which the upper sash portion is gently curved to be connected to a door panel. - Additionally, although the
reinforcement member 15 that is a separate member from theinner frame 11 is used for the formation of a design portion at the rearside sash portion 11Z of theinner frame 11 in the present embodiment, it is possible to form the design portion solely by theinner frame 11 in a similar manner to theupper sash portion 11Y. More specifically, it is possible to leave the outer-periphery design portion 11 d without cutting out the rearside sash portion 11Z to form the design portion from the outer-periphery design portion 11 d and the inner-periphery design portion 11 e. - Additionally, although the
tubular portion 11 a of theinner frame 11 of the present embodiment is formed to have a closed cross section, the present invention can also be applied to a door frame provided with a tubular portion having no closed cross section. - As described above in detail, the present invention relates to a door frame structure applied to a vehicle such as an automobile and a method of producing the door frame, and a reduction in production cost, an improvement in productivity and an improvement in strength of the door frame can be achieved by forming the body of the door frame from a frame body consisting of a single member which is continuous from the upper sash portion to the side sash portion. In addition, the degree of freedom in vehicle design can be increased by setting an appropriate width of the design portion at each portion of the frame by making the width of the design portion in the frame body vary at least one point in the lengthwise direction of the design portion.
-
-
- 10 Door frame
- 11 Inner frame (frame body)
- 11 a Tubular portion
- 11
b 11 c Planate portion (glass-opposing portion) - 11 d Outer-periphery design portion
- 11 e Inner-periphery design portion (glass guide portion formation area in a design portion)
- 11 f Upright wall portion
- 11 g Stepped portion
- 11X Front side sash portion
- 11Y Upper sash portion
- 11Z Rear side sash portion
- 12 Exterior member
- 12 a 12 a-W Design surface
- 12
b 12 c Hemmed portion - 12X Front side portion
- 12Y Upper portion
- 12Z Rear side portion
- 13 Front corner patch
- 13 a Connection design portion
- 14 Rear corner patch
- 14 a Connection design portion
- 15 Reinforcement member
- 15 a Outer-periphery design portion
- 15 b Support plate portion
- 16 Window opening
- 20 Glass guide portion
- G Door glass
- H1 Front corner portion
- H2 Rear corner portion
Claims (5)
1. A vehicle door frame structure which includes an upper sash portion that holds an upper edge of an upward/downward movable door glass, a side sash portion that holds a side edge of said door glass and a corner portion positioned at a boundary between said upper sash portion and said side sash portion, said vehicle door frame structure comprising:
a frame body which includes a glass-opposing portion that is opposed to an edge of said door glass, a design portion that is positioned on one side of said glass-opposing portion on a vehicle exterior side and a tubular portion that is positioned on the other side of said glass-opposing portion on a vehicle interior side, wherein said frame body is structured as a single member which is continuous from said upper sash portion to said side sash portion by forming a glass guide portion from said glass-opposing portion, said design portion and said tubular portion so that said glass guide portion has a concave-shaped cross section surrounding said edge of said door glass, by forming said tubular portion to have a uniform cross section over a range from said upper sash portion to said side sash portion, and by performing a bending process on said corner portion; and
an exterior member which covers the design portion of each of said upper sash portion and said side sash portion of said frame body from said vehicle exterior side,
wherein said frame body is configured such that a width of said design portion varies at least one area along the length of said design portion.
2. The vehicle door frame structure according to claim 1 , wherein said frame body is configured such that the width of said design portion in an area in which said glass guide portion is formed varies at least said one area along the length of said design portion.
3. The vehicle door frame structure according to claim 2 , wherein said width of said design portion in said glass guide portion formation area is greater in said side sash portion than in said upper sash portion.
4. The vehicle door frame structure according to one of claim 1 , wherein said design portion has been cut out at said corner portion in said frame body.
5. A method of producing a vehicle door frame which includes an upper sash portion that holds an upper edge of an upward/downward movable door glass, a side sash portion that holds a side edge of said door glass and a corner portion positioned at a boundary between said upper sash portion and said side sash portion, said method comprising:
forming a frame body which is continuous from said upper sash portion to said side sash portion by forming a linear member from a metal plate which has a length extending at least from said upper sash portion to said side sash portion so that said linear member has an uniform cross sectional shape which includes a glass-opposing portion that is opposed to an edge of said door glass, a design portion that is positioned on one side of said glass-opposing portion on a vehicle exterior side, a tubular portion that is positioned on the other side of said glass-opposing portion on a vehicle interior side, and a glass guide portion which has a concave-shaped cross section surrounding said edge of said door glass by said glass-opposing portion, said design portion and said tubular portion; and by bending said linear member at said corner portion,
performing a process of making a width of said design portion of said frame body vary at least one area along length of said design portion, and
covering said design portion of said frame body with an exterior member from said vehicle exterior side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/094,050 US9027285B2 (en) | 2009-10-14 | 2013-12-02 | Method of producing vehicle door frame |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009237089A JP5469424B2 (en) | 2009-10-14 | 2009-10-14 | Vehicle door frame manufacturing method |
JP2009-237089 | 2009-10-14 | ||
PCT/JP2010/067722 WO2011046068A1 (en) | 2009-10-14 | 2010-10-08 | Structure for vehicle door frame and method for manufacturing vehicle door frame |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/067722 Continuation WO2011046068A1 (en) | 2009-10-14 | 2010-10-08 | Structure for vehicle door frame and method for manufacturing vehicle door frame |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/094,050 Division US9027285B2 (en) | 2009-10-14 | 2013-12-02 | Method of producing vehicle door frame |
Publications (1)
Publication Number | Publication Date |
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US20120198775A1 true US20120198775A1 (en) | 2012-08-09 |
Family
ID=43876119
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US13/446,055 Abandoned US20120198775A1 (en) | 2009-10-14 | 2012-04-13 | Vehicle door frame structure and method of producing vehicle door frame |
US14/094,050 Expired - Fee Related US9027285B2 (en) | 2009-10-14 | 2013-12-02 | Method of producing vehicle door frame |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US14/094,050 Expired - Fee Related US9027285B2 (en) | 2009-10-14 | 2013-12-02 | Method of producing vehicle door frame |
Country Status (4)
Country | Link |
---|---|
US (2) | US20120198775A1 (en) |
JP (1) | JP5469424B2 (en) |
CN (1) | CN102574445A (en) |
WO (1) | WO2011046068A1 (en) |
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WO2018109007A1 (en) * | 2016-12-15 | 2018-06-21 | Jaguar Land Rover Limited | A support structure for a movable windowpane for a door for a vehicle |
US10259297B2 (en) * | 2016-09-21 | 2019-04-16 | Shiroki Corporation | Vehicle door frame |
US11220162B2 (en) * | 2019-08-08 | 2022-01-11 | Hyundai Motor Company | Door frame for vehicles |
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JP5716503B2 (en) | 2011-04-06 | 2015-05-13 | ソニー株式会社 | Information processing apparatus, information processing method, and computer program |
JP5716502B2 (en) | 2011-04-06 | 2015-05-13 | ソニー株式会社 | Information processing apparatus, information processing method, and computer program |
JP6203470B2 (en) * | 2011-07-12 | 2017-09-27 | シロキ工業株式会社 | Door sash |
JP2014208377A (en) * | 2013-03-29 | 2014-11-06 | シロキ工業株式会社 | Method for welding galvanized steel sheet and raw steel sheet, and method for welding vehicular door sash |
JP6368708B2 (en) * | 2013-04-05 | 2018-08-01 | シロキ工業株式会社 | Door sash with sash for vehicle |
JP6214921B2 (en) * | 2013-05-20 | 2017-10-18 | シロキ工業株式会社 | Vehicle door frame |
KR101518908B1 (en) * | 2013-11-08 | 2015-05-11 | 현대자동차 주식회사 | Door frame for vehicle |
CN104772572B (en) * | 2014-01-09 | 2018-10-12 | 白木工业株式会社 | The conjugant and vehicle door of heterogeneity aluminum alloy material |
JP6731330B2 (en) * | 2016-11-11 | 2020-07-29 | シロキ工業株式会社 | Door channel |
JP7027122B2 (en) * | 2017-10-27 | 2022-03-01 | シロキ工業株式会社 | How to seam weld vehicle door sashes |
CN111319433B (en) * | 2020-03-19 | 2021-10-22 | 北京汽车股份有限公司 | Glass guide rail and vehicle door |
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Also Published As
Publication number | Publication date |
---|---|
WO2011046068A1 (en) | 2011-04-21 |
JP2011084128A (en) | 2011-04-28 |
US20140157602A1 (en) | 2014-06-12 |
JP5469424B2 (en) | 2014-04-16 |
US9027285B2 (en) | 2015-05-12 |
CN102574445A (en) | 2012-07-11 |
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Owner name: SHIROKI CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FUKUI, KATSUHISA;MUTOH, TADASHI;NODA, ATSUO;AND OTHERS;REEL/FRAME:028041/0137 Effective date: 20120409 |
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