CA2015129C - Debris collection system for a surface treating tool - Google Patents
Debris collection system for a surface treating toolInfo
- Publication number
- CA2015129C CA2015129C CA002015129A CA2015129A CA2015129C CA 2015129 C CA2015129 C CA 2015129C CA 002015129 A CA002015129 A CA 002015129A CA 2015129 A CA2015129 A CA 2015129A CA 2015129 C CA2015129 C CA 2015129C
- Authority
- CA
- Canada
- Prior art keywords
- container
- housing
- exhaust port
- tool according
- debris
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
- B24B55/105—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with oscillating tools
Abstract
DEBRIS COLLECTION SYSTEM FOR
A SURFACE TREATING TOOL
ABSTRACT
A surface treating tool is provided with a debris collection container which includes a semi-rigid frame defining at least one window and mesh fabric covering that window. The exterior configuration of the container is such that the container blends in with the contour of the tool to provide an aesthetically pleasing appearance.
A SURFACE TREATING TOOL
ABSTRACT
A surface treating tool is provided with a debris collection container which includes a semi-rigid frame defining at least one window and mesh fabric covering that window. The exterior configuration of the container is such that the container blends in with the contour of the tool to provide an aesthetically pleasing appearance.
Description
20~L29 0~9078 DEBRIS COLLECTION SYSTEM FOR
A SURFACE TREATING TOOL
sAcKGRouND OF THE INVENTION
This invention relates to an electrically powered portable surface treating tool such as a sander, and the like, which creates debris as a result of surface abrasion and, more particularly, to an improved system for collecting such debris for subsequent disposal thereof.
Electrically powered portable surface treating tools such as sanders, and the like, typically are provided with a platen which has a s~rface for supporting thereon a sheet of abrasive material, such as sandpaper. Such a tool has an electric motor, the output shaft of which is coupled to the platen through an actuating mechanism which converts the rotary motion of the output shaft into motion of the platen. This latter motion may be rotary, reciprocatory, orbital or some combination thereof, and results ~n relativ~ motion between the abrasive sheet and the surface being treated. The resulting abrasion of the ~urface produces debris, such as sanding dust.
The debris created by the surface treating operation is unwanted and numerous arrangements have been devised in the past for removing such debris from the work area, . .. . . .
and for collecting and depositing it in a receptacle for subsequent disposal thereof. Typically, these 2 ~ 2 ~
arrangements include a fan mounted on the output shaft of the motor for creating suction, along with the provision of passageways by which the suction induced airflow can remove the debris from the surface and transport it to a collection port. Generally, a debris collection filter bag is supported on the collection port and the debris laden air is directed into the bag which allows the air to pass therethrough while containing the debris therein.
~hile such an arrangement performs its intended function, it suffers from a number of disadvantages. For example, the debris collection filter bag is generally relatively large and flaccid so that it tends to obstruct a clear view of the surface work area and can also interfere with proper handling of the tool. Further, such a debris collection filter bag can prove to be difficult to empty and clean. In addition, when using such a debris collection filter bag, it is difficult to ascertain when the bag should be emptied. Also, such a debris collection filter bag detracts from the aesthetic appearance of the tool.
Accordingly, it is a general object of this invention to provide a debris collection system for a surface treating tool which overcomes the above-noted disadvantages of prior arrangements.
SUMMARY OF THE INVENTION
The foregoing, and additional, objects are attained in accordance with the principles of this invention b~
providing a surface treating tool o~ the type described wherein debris collection is effected through the use of a relatively rigid debris collection container having windows covered with a mesh fabric, which container is latched onto the exhaust port of a debris collection conduitO This container is easily removable from, and -- _ installed on, the tool and is further easily inverted for the dumping of its contents. Preferably, the container is formed of a plastic material which may be ~ashed for 2 ~ 2 9 cleaning purposes. Also, the exterior con~iguration of the container is so designed that it blends in with the contours of the tool to achieve a generally pleasing overall aesthetic appearance.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing will be more readily apparent upon reading the following description in conjunction with the drawings wherein like elements in different figures have the same reference numeral and wherein:
FIG. 1 is a perspective view showing an illustrative surface treating tool having a debris collection system constructed in accordance with the principles of this invention;
FIG. 2 is a perspective view of an illustrative debris collection container constructed according to this invention;
FIG. 3 is a perspective view of the sur~ace treating tool of FIG. 1 with the debris collection container removed and separated from the tool; and FIG. 4 is a side view, partially in cross section, of the tool shown in FIG. 1.
DETAILED DESCRIPrION
As shown in the drawings, this invention is illustrated in the environment of a pad sander, designated generally by the reference numeral 10. As is conventional, the sander 10 includes a clamshell housing 12 of plastic or like material comprising a pair of complementary halves which are detachably connected along a longitudinal split by screws or the liXe. The housing 12 includes a tower section 14 within which is supported a rotating electric motor 16 and below which is carried a platen 18 having a sur~ace 20 for supporting an abrasive sheet, such as sandpaper, in a conventional manner. The housing 12 further includes a generally horizontal handle section 22 which extends rearwardly ~rom the upper end of the tower section 14 beyond the rear extremity of the platen 18. The handle section 22 carries a switch actuator 24 which is coupled to control an electric switch through which power can be selectively applied from a suitable source of electric power to the motor 16, for operating the sander 10. A forwardly positioned auxiliary handle 26 may also be provided so that the sander 10 can be more effectively grasped and controlled by the operator.
As shown in FIG. ~, the motor 16 includes an output shaft 28. An actuating mechanism 30 couples the output shaft 28 to the platen 18 for converting rotary motion of the output shaft 28 to motion of the platen 18. The motion of the platen 18 may be reciprocatory, orbital, or some combination thereof. As is conventional, the platen 18 includes a backing plate 32 which is carried by the housing 12 by means of a plurality of resilient rubber posts 34. The resili~nt rubber posts 34 secure the platen 18 to the housing 12 while allowing relative motion therebetween due to the actuating mechanism 30.
Located within the tower section 14, batween the motor 16 and the actuating mechanism 30, is a centrifugal fan 36 mount~d on, and for rotation with, the output shaft 28. The fan 36 has two sets of blades or vanes, an upper set 38 and a lower set 40, separated by a circular flange 42. The tower section 14, in radial alignment with the flange 42, is provided with an inwardly directed generally complementary flange portion 44, which defines in the tower section 14 two fan housing chambers, an upper chamber 46 associated with the upper vane set 38 and a lower chamber 48 associatPd with the lower vane set 40. Accordingly, the fan 36 serves to provide simultaneous air flow through two separate channels or flow paths in the tower section 14 separated by the 35- -complementary flanges 42 and 44. In one channel or flow path, which may be referred to as the cooling air flow path, air :is drawn by means of the upp r set of fan vanes 2 ~
38 through inl~t opening~3 50 provided ln the tower s~ction 14 ~ov~ the motor 16 for flow pa6~ the motor 16 and exAaust ~low outwardly of th~a towe~ ~sct~on ~4 through air ~xhau~t op2ning~ 52 communicating with tho S upper ïan cAamber 45.
The platen 18 illustrativ~ly is ~or~l3d with a plurality of openings 54. ~rhe open~ngs 54 s::o~municate with chamb~rs 56 ~o~ned by the shaping of the b~aking pla~e 32. Each o~ the posts~ 34 i~3 hollow and th8 b~cXing plate 32 i8 liO form~d with ~tu~3 58 wh~ ar~ pr~s ~it int~ the ~entral openlng o~ thP po~t~ 34 80 tha~ thQ
interior~ o~ th~ posts 34 com~unicate w~th respective oha~er~ 56 an~ ln turn with re~ipeative pl~'cen openlngs 54. The llpp~ ant:l~ oX thQ in~rior opening~ o~ th~ po~t~;
34 ~om;~unicate directly with the low~3r ~n ~h~er 48, Accordlngly~ thQ low~r fan vane set 40 ialiduc~ a~t~on ~ela~lv~ th~ op~nings 54 to cau e ir ~low through the platara 18 and ~ntc th~ low3r chamber 48, a& indicat~ad by th~ arrow~ 60. Irh~ a1ara~sLve she~ ., th~ sandpapar~, f~ene~ onto th~ lower ~-2r~ac~ ~0 o~ t~e pla'cen 18 1Q
pierced at locations corresponding to the ope~ng~ 54 in th~ platen 18. Ther~3~ore, the ~uctlon inducod by ~he low~r fan vane s~t 40 cause~ d~bri ~:rcated by the a~rasiv~ action Qf~ thG sand~r 10 to be ~rawn upwardly 2~ through i:h~ openinys 54 and into the lclwer ha~r 4B.
In ac:c:ord~nca with thi~ vention, t:h~ hs~ ng 12 is fur~er ~o~med with ~ onduit s~ctiun ~2 wh~ch exte~nds ~rom th4 diRtal end 64 o~ ~he handle s~ction ~ ~o ~hla lower ~n~ 66 oi~ the tower sec~ion 14. ~hQ conduit 3 0 section ~ i8 ~pace~ fro~ a handle sec~ion 6~ so as l:o p~ovid~ an open handhold regis:~n 68 be3 ow th~ handle sQct~ on 22 . The conduit e~ction 62 i~ hollow so as to ~orm a cond~lit 7D th~rethr~ugh, which ~onduit 70 ~s open at its lower end to the lower ~an chamber 4~. ~rh~
~s c:onduit sec:tlon 62 is further ~orm~d wlth an exhaust port 72 on its lower 3urf~c:e. Thu~, d~bri6 laden ~ir whioh i pullad through the platen openings 54 ~rav~1~3 through th~
6 2 0 ~
lower fan chamber 48 and into the conduit 70, from whence it is discharged through the exhaust port 72.
To collect the debris after it passes outwardly from the exhaust port 72, there is provided in accordance with the principles of this invention a debris collection container 74. The container 74 is formed of a semi-rigid frame member 76 de*ining a plurality o~ windows 78. As shown in FIG. 2, the debris collection container 74 has four sides, a bottom and an open top. The windows 78 are preferably located in the lateral walls 80 and the rear wall 82. The front wall 84, as well as the bottom of the container 74, do not have windows. The frame member 76 is preferably molded of polypropylene material and to fill the windows 78 a mesh ~abric is placed in the mold form prior to injection of the polypropylene material.
Accordingly, the mesh fabric fills the windows 78 and becomes intsgral with the frame member 76. Preferably, the mesh fabric 86 is formed of woven monofilament nylon.
Illustratively, the nylon filament has a diameter of 1.5 mils and the openings of the mesh are spaced at substantially 305 openings per inch, thereby leaving clear openings approximately 45 microns across.
The opening at the top of the container 74 is sized so as to cover the exhaust port 72 in the conduit section 62 of the sander 10. The walls of the container 74 surrounding that openin~, as well as the front wall 84, are shouldered at 88 so as to provide a seal with the exhaust port 72 when the container 7~ is installed on the sander lO.
FIGo 1 illustrates the container 74 installed on the sander 10. It is apparent from the drawing that the exterior of the container 74 is so configured that it blends in with the contour of the sander 10 to provide an aesthetically pleasing appearance. Thus, the sides of - - 35 --- the conduit section 62 are continued by the lateral walls 80 of the container 74; the rear wall of the handle section 22 is continued by the rear wall 82 of the 2 ~
container 74; and tha bottom of the container 74 is angled to the same degree as the conduit section 62.
Thus, a unitary appearanca is effected when the container 74 is installed on the sander 10 without any attendant disadvantages such as are encountered with the use of a filter bag, as previously de.scribed.
In order to secure the container 74 on the sander lO, the container 74 is formed with a resilient latch member 90 which extends upwardly from the rear wall 82. The latch member 90 includes a ribbed section 92, which facilitates engagement by the operator's finger, along with an outwardly extending lip 94 at its distal extremity. For cooperating with the latch member 9o, the housing is formed with an inwardly extending lip 96 above and adjacent to the exhaust port 72, which lip 96 is complementary with respect to the lip 94 so that engagement therebetween may be effected by the operator moving the latch member 90 upwardly against the lip 96 so that the resilience of the latch member 90 allows the lip 94 to move inwardly to pass over the lip 96, after which it snaps back outwardly to catch on the lip 96, as shown in FIG. 4. The container 74 is further formed with a pair of tab members ~8 which extend forward and laterally outward from the front wall 84 of the container 74.
These tab members 98 are adapted to engage, from the inside, the rear wall lO0 of the housing 12 below thQ
exhaust port 72. To enable the tab members 38 to pass that rear wall 100, the rear wall lO0 of the housing 12 is formed with an open space 102 which is an extension of the exhaust port 72 and a pair of notches 104.
~IG. 3 illustrates how the container 74 may be removed from or installed on the sander 10. Thus, for removal, the latch member 90 is pressed inwardly and the container 74 is moved downwardly a sufficient distance that the tab 35 - members 98 align with the notches 104. The container 74 is then pulled rearwardly free of the housing 12. For installation, the process is reversed. The container 74 20~2~
is positioned so that the tab members 98 align with the notches 104 and then the container 74 is moved inwardly and upwardly so that the lip 94 on the latch member 90 engages the lip 96 on the housing 12 and the tab members 98 engage the rear wall 100 of the housing 12.
Thus, when the sander 10 is utilized with the container 74 in place, the debris laden air pulled through the platen holes 54 by the fan 36 travels through the conduit 70, out through the exhaust port 72 and into ~he container 74. The air then passes through the mesh fabric 86 which traps the debris within the container 74.
The amount of debris within the container 74 is readily apparent to the tool operator who may view same through the mesh fabric 86. When this debris reaches a specific level, the operator may readily remove the container 74 and dispose of the debris contained therein by merely inverting the container 74 over a suitable waste receptacle. If desired, the container 74 may be washed or blown with compressed air to completely unclog the openings in the mesh fabric 86. The container 74 is then quickly reinstalled in the tool 10 and surface treatment may be continued.
Accordingly, there has been disclosed an improved debris collection system for a surface treating tool.
While an illustrative embodiment of the present invention has been disclosed herein, it will be apparent to those of ordinary skill in the art that various modifications and adaptations to that embodiment are possible and it is only intended that the present invention be limited by the scope of the appended claims.
A SURFACE TREATING TOOL
sAcKGRouND OF THE INVENTION
This invention relates to an electrically powered portable surface treating tool such as a sander, and the like, which creates debris as a result of surface abrasion and, more particularly, to an improved system for collecting such debris for subsequent disposal thereof.
Electrically powered portable surface treating tools such as sanders, and the like, typically are provided with a platen which has a s~rface for supporting thereon a sheet of abrasive material, such as sandpaper. Such a tool has an electric motor, the output shaft of which is coupled to the platen through an actuating mechanism which converts the rotary motion of the output shaft into motion of the platen. This latter motion may be rotary, reciprocatory, orbital or some combination thereof, and results ~n relativ~ motion between the abrasive sheet and the surface being treated. The resulting abrasion of the ~urface produces debris, such as sanding dust.
The debris created by the surface treating operation is unwanted and numerous arrangements have been devised in the past for removing such debris from the work area, . .. . . .
and for collecting and depositing it in a receptacle for subsequent disposal thereof. Typically, these 2 ~ 2 ~
arrangements include a fan mounted on the output shaft of the motor for creating suction, along with the provision of passageways by which the suction induced airflow can remove the debris from the surface and transport it to a collection port. Generally, a debris collection filter bag is supported on the collection port and the debris laden air is directed into the bag which allows the air to pass therethrough while containing the debris therein.
~hile such an arrangement performs its intended function, it suffers from a number of disadvantages. For example, the debris collection filter bag is generally relatively large and flaccid so that it tends to obstruct a clear view of the surface work area and can also interfere with proper handling of the tool. Further, such a debris collection filter bag can prove to be difficult to empty and clean. In addition, when using such a debris collection filter bag, it is difficult to ascertain when the bag should be emptied. Also, such a debris collection filter bag detracts from the aesthetic appearance of the tool.
Accordingly, it is a general object of this invention to provide a debris collection system for a surface treating tool which overcomes the above-noted disadvantages of prior arrangements.
SUMMARY OF THE INVENTION
The foregoing, and additional, objects are attained in accordance with the principles of this invention b~
providing a surface treating tool o~ the type described wherein debris collection is effected through the use of a relatively rigid debris collection container having windows covered with a mesh fabric, which container is latched onto the exhaust port of a debris collection conduitO This container is easily removable from, and -- _ installed on, the tool and is further easily inverted for the dumping of its contents. Preferably, the container is formed of a plastic material which may be ~ashed for 2 ~ 2 9 cleaning purposes. Also, the exterior con~iguration of the container is so designed that it blends in with the contours of the tool to achieve a generally pleasing overall aesthetic appearance.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing will be more readily apparent upon reading the following description in conjunction with the drawings wherein like elements in different figures have the same reference numeral and wherein:
FIG. 1 is a perspective view showing an illustrative surface treating tool having a debris collection system constructed in accordance with the principles of this invention;
FIG. 2 is a perspective view of an illustrative debris collection container constructed according to this invention;
FIG. 3 is a perspective view of the sur~ace treating tool of FIG. 1 with the debris collection container removed and separated from the tool; and FIG. 4 is a side view, partially in cross section, of the tool shown in FIG. 1.
DETAILED DESCRIPrION
As shown in the drawings, this invention is illustrated in the environment of a pad sander, designated generally by the reference numeral 10. As is conventional, the sander 10 includes a clamshell housing 12 of plastic or like material comprising a pair of complementary halves which are detachably connected along a longitudinal split by screws or the liXe. The housing 12 includes a tower section 14 within which is supported a rotating electric motor 16 and below which is carried a platen 18 having a sur~ace 20 for supporting an abrasive sheet, such as sandpaper, in a conventional manner. The housing 12 further includes a generally horizontal handle section 22 which extends rearwardly ~rom the upper end of the tower section 14 beyond the rear extremity of the platen 18. The handle section 22 carries a switch actuator 24 which is coupled to control an electric switch through which power can be selectively applied from a suitable source of electric power to the motor 16, for operating the sander 10. A forwardly positioned auxiliary handle 26 may also be provided so that the sander 10 can be more effectively grasped and controlled by the operator.
As shown in FIG. ~, the motor 16 includes an output shaft 28. An actuating mechanism 30 couples the output shaft 28 to the platen 18 for converting rotary motion of the output shaft 28 to motion of the platen 18. The motion of the platen 18 may be reciprocatory, orbital, or some combination thereof. As is conventional, the platen 18 includes a backing plate 32 which is carried by the housing 12 by means of a plurality of resilient rubber posts 34. The resili~nt rubber posts 34 secure the platen 18 to the housing 12 while allowing relative motion therebetween due to the actuating mechanism 30.
Located within the tower section 14, batween the motor 16 and the actuating mechanism 30, is a centrifugal fan 36 mount~d on, and for rotation with, the output shaft 28. The fan 36 has two sets of blades or vanes, an upper set 38 and a lower set 40, separated by a circular flange 42. The tower section 14, in radial alignment with the flange 42, is provided with an inwardly directed generally complementary flange portion 44, which defines in the tower section 14 two fan housing chambers, an upper chamber 46 associated with the upper vane set 38 and a lower chamber 48 associatPd with the lower vane set 40. Accordingly, the fan 36 serves to provide simultaneous air flow through two separate channels or flow paths in the tower section 14 separated by the 35- -complementary flanges 42 and 44. In one channel or flow path, which may be referred to as the cooling air flow path, air :is drawn by means of the upp r set of fan vanes 2 ~
38 through inl~t opening~3 50 provided ln the tower s~ction 14 ~ov~ the motor 16 for flow pa6~ the motor 16 and exAaust ~low outwardly of th~a towe~ ~sct~on ~4 through air ~xhau~t op2ning~ 52 communicating with tho S upper ïan cAamber 45.
The platen 18 illustrativ~ly is ~or~l3d with a plurality of openings 54. ~rhe open~ngs 54 s::o~municate with chamb~rs 56 ~o~ned by the shaping of the b~aking pla~e 32. Each o~ the posts~ 34 i~3 hollow and th8 b~cXing plate 32 i8 liO form~d with ~tu~3 58 wh~ ar~ pr~s ~it int~ the ~entral openlng o~ thP po~t~ 34 80 tha~ thQ
interior~ o~ th~ posts 34 com~unicate w~th respective oha~er~ 56 an~ ln turn with re~ipeative pl~'cen openlngs 54. The llpp~ ant:l~ oX thQ in~rior opening~ o~ th~ po~t~;
34 ~om;~unicate directly with the low~3r ~n ~h~er 48, Accordlngly~ thQ low~r fan vane set 40 ialiduc~ a~t~on ~ela~lv~ th~ op~nings 54 to cau e ir ~low through the platara 18 and ~ntc th~ low3r chamber 48, a& indicat~ad by th~ arrow~ 60. Irh~ a1ara~sLve she~ ., th~ sandpapar~, f~ene~ onto th~ lower ~-2r~ac~ ~0 o~ t~e pla'cen 18 1Q
pierced at locations corresponding to the ope~ng~ 54 in th~ platen 18. Ther~3~ore, the ~uctlon inducod by ~he low~r fan vane s~t 40 cause~ d~bri ~:rcated by the a~rasiv~ action Qf~ thG sand~r 10 to be ~rawn upwardly 2~ through i:h~ openinys 54 and into the lclwer ha~r 4B.
In ac:c:ord~nca with thi~ vention, t:h~ hs~ ng 12 is fur~er ~o~med with ~ onduit s~ctiun ~2 wh~ch exte~nds ~rom th4 diRtal end 64 o~ ~he handle s~ction ~ ~o ~hla lower ~n~ 66 oi~ the tower sec~ion 14. ~hQ conduit 3 0 section ~ i8 ~pace~ fro~ a handle sec~ion 6~ so as l:o p~ovid~ an open handhold regis:~n 68 be3 ow th~ handle sQct~ on 22 . The conduit e~ction 62 i~ hollow so as to ~orm a cond~lit 7D th~rethr~ugh, which ~onduit 70 ~s open at its lower end to the lower ~an chamber 4~. ~rh~
~s c:onduit sec:tlon 62 is further ~orm~d wlth an exhaust port 72 on its lower 3urf~c:e. Thu~, d~bri6 laden ~ir whioh i pullad through the platen openings 54 ~rav~1~3 through th~
6 2 0 ~
lower fan chamber 48 and into the conduit 70, from whence it is discharged through the exhaust port 72.
To collect the debris after it passes outwardly from the exhaust port 72, there is provided in accordance with the principles of this invention a debris collection container 74. The container 74 is formed of a semi-rigid frame member 76 de*ining a plurality o~ windows 78. As shown in FIG. 2, the debris collection container 74 has four sides, a bottom and an open top. The windows 78 are preferably located in the lateral walls 80 and the rear wall 82. The front wall 84, as well as the bottom of the container 74, do not have windows. The frame member 76 is preferably molded of polypropylene material and to fill the windows 78 a mesh ~abric is placed in the mold form prior to injection of the polypropylene material.
Accordingly, the mesh fabric fills the windows 78 and becomes intsgral with the frame member 76. Preferably, the mesh fabric 86 is formed of woven monofilament nylon.
Illustratively, the nylon filament has a diameter of 1.5 mils and the openings of the mesh are spaced at substantially 305 openings per inch, thereby leaving clear openings approximately 45 microns across.
The opening at the top of the container 74 is sized so as to cover the exhaust port 72 in the conduit section 62 of the sander 10. The walls of the container 74 surrounding that openin~, as well as the front wall 84, are shouldered at 88 so as to provide a seal with the exhaust port 72 when the container 7~ is installed on the sander lO.
FIGo 1 illustrates the container 74 installed on the sander 10. It is apparent from the drawing that the exterior of the container 74 is so configured that it blends in with the contour of the sander 10 to provide an aesthetically pleasing appearance. Thus, the sides of - - 35 --- the conduit section 62 are continued by the lateral walls 80 of the container 74; the rear wall of the handle section 22 is continued by the rear wall 82 of the 2 ~
container 74; and tha bottom of the container 74 is angled to the same degree as the conduit section 62.
Thus, a unitary appearanca is effected when the container 74 is installed on the sander 10 without any attendant disadvantages such as are encountered with the use of a filter bag, as previously de.scribed.
In order to secure the container 74 on the sander lO, the container 74 is formed with a resilient latch member 90 which extends upwardly from the rear wall 82. The latch member 90 includes a ribbed section 92, which facilitates engagement by the operator's finger, along with an outwardly extending lip 94 at its distal extremity. For cooperating with the latch member 9o, the housing is formed with an inwardly extending lip 96 above and adjacent to the exhaust port 72, which lip 96 is complementary with respect to the lip 94 so that engagement therebetween may be effected by the operator moving the latch member 90 upwardly against the lip 96 so that the resilience of the latch member 90 allows the lip 94 to move inwardly to pass over the lip 96, after which it snaps back outwardly to catch on the lip 96, as shown in FIG. 4. The container 74 is further formed with a pair of tab members ~8 which extend forward and laterally outward from the front wall 84 of the container 74.
These tab members 98 are adapted to engage, from the inside, the rear wall lO0 of the housing 12 below thQ
exhaust port 72. To enable the tab members 38 to pass that rear wall 100, the rear wall lO0 of the housing 12 is formed with an open space 102 which is an extension of the exhaust port 72 and a pair of notches 104.
~IG. 3 illustrates how the container 74 may be removed from or installed on the sander 10. Thus, for removal, the latch member 90 is pressed inwardly and the container 74 is moved downwardly a sufficient distance that the tab 35 - members 98 align with the notches 104. The container 74 is then pulled rearwardly free of the housing 12. For installation, the process is reversed. The container 74 20~2~
is positioned so that the tab members 98 align with the notches 104 and then the container 74 is moved inwardly and upwardly so that the lip 94 on the latch member 90 engages the lip 96 on the housing 12 and the tab members 98 engage the rear wall 100 of the housing 12.
Thus, when the sander 10 is utilized with the container 74 in place, the debris laden air pulled through the platen holes 54 by the fan 36 travels through the conduit 70, out through the exhaust port 72 and into ~he container 74. The air then passes through the mesh fabric 86 which traps the debris within the container 74.
The amount of debris within the container 74 is readily apparent to the tool operator who may view same through the mesh fabric 86. When this debris reaches a specific level, the operator may readily remove the container 74 and dispose of the debris contained therein by merely inverting the container 74 over a suitable waste receptacle. If desired, the container 74 may be washed or blown with compressed air to completely unclog the openings in the mesh fabric 86. The container 74 is then quickly reinstalled in the tool 10 and surface treatment may be continued.
Accordingly, there has been disclosed an improved debris collection system for a surface treating tool.
While an illustrative embodiment of the present invention has been disclosed herein, it will be apparent to those of ordinary skill in the art that various modifications and adaptations to that embodiment are possible and it is only intended that the present invention be limited by the scope of the appended claims.
Claims (8)
1. A surface treating tool comprising:
a housing;
a rotating electric motor having an output shaft supported within said housing;
a platen carried on said housing and having a surface for supporting an abrasive sheet;
actuating means coupling said motor output shaft to said platen for converting rotary motion of said output shaft to motion of said platen;
a conduit within said housing having an exhaust port through said housing;
suction inducing means mounted on said motor output shaft for removing abrasion produced debris from the surface and directing the debris to said conduit; and a debris collection container mounted on said exhaust port;
CHARACTERIZED IN THAT
the debris collection container includes a semi-rigid frame defining at least one window;
and mesh fabric covering said at least one window.
a housing;
a rotating electric motor having an output shaft supported within said housing;
a platen carried on said housing and having a surface for supporting an abrasive sheet;
actuating means coupling said motor output shaft to said platen for converting rotary motion of said output shaft to motion of said platen;
a conduit within said housing having an exhaust port through said housing;
suction inducing means mounted on said motor output shaft for removing abrasion produced debris from the surface and directing the debris to said conduit; and a debris collection container mounted on said exhaust port;
CHARACTERIZED IN THAT
the debris collection container includes a semi-rigid frame defining at least one window;
and mesh fabric covering said at least one window.
2. The tool according to Claim 1 wherein said mesh fabric is formed of woven monofilament nylon.
3. The tool according to Claim 1 wherein said mesh fabric is formed of woven monofilament nylon mesh having generally 45 micron clear openings.
4. The tool according to Claim 3 wherein the openings of the mesh are spaced at generally 305 openings per inch.
5. The tool according to Claim 1 wherein said housing includes:
a tower section containing said motor;
a generally horizontal handle section extending rearwardly from the upper end of said tower section beyond the rear extremity of said platen; and a conduit section extending from the distal end of said handle section to the lower end of said tower section so as to provide an open handhold region below said handle section, said conduit section containing said conduit therein and being formed with said exhaust port on its lower surface; and said debris collection container has an opening which covers said exhaust port when said container is mounted thereon, said container being so configured on its exterior that it blends in with the contour of said tool to provide an aesthetically pleasing appearance.
a tower section containing said motor;
a generally horizontal handle section extending rearwardly from the upper end of said tower section beyond the rear extremity of said platen; and a conduit section extending from the distal end of said handle section to the lower end of said tower section so as to provide an open handhold region below said handle section, said conduit section containing said conduit therein and being formed with said exhaust port on its lower surface; and said debris collection container has an opening which covers said exhaust port when said container is mounted thereon, said container being so configured on its exterior that it blends in with the contour of said tool to provide an aesthetically pleasing appearance.
6. The tool according to Claim 5 wherein said container includes four sides and a bottom, the top of said container being open, at least one of said sides having said at least one window.
7. The tool according to Claim 6 wherein said container further includes a pair of tab members extending forward and laterally outward from the front of said container to engage a wall of said housing below said exhaust port and a resilient latch member extending upwardly from the rear of said container to engage a complementarily formed engagement member on said housing above said exhaust port.
8. The tool according to Claim 7 wherein walls of said container which mate with the housing exhaust port are formed with shoulders so as to provide a seal with the exhaust port.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/450,273 | 1989-12-13 | ||
| US07/450,273 US4967516A (en) | 1989-12-13 | 1989-12-13 | Debris collection system for a surface treating tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2015129C true CA2015129C (en) | 1994-12-13 |
Family
ID=23787440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002015129A Expired - Fee Related CA2015129C (en) | 1989-12-13 | 1990-04-23 | Debris collection system for a surface treating tool |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4967516A (en) |
| JP (1) | JPH03208558A (en) |
| AU (1) | AU629034B2 (en) |
| CA (1) | CA2015129C (en) |
| DE (1) | DE4038634A1 (en) |
| FR (1) | FR2655585B1 (en) |
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| US4713895A (en) * | 1986-07-08 | 1987-12-22 | Francois Vallieres | Sports shoe cover |
| JPS6328565A (en) * | 1986-07-18 | 1988-02-06 | Hitachi Koki Co Ltd | Dust collecting case of portable motor driven tool |
| US4731895A (en) * | 1986-10-21 | 1988-03-22 | Hako Minuteman, Inc. | High speed floor burnishing machine |
| DE3702960A1 (en) * | 1987-01-31 | 1988-08-11 | Scintilla Ag | FLEXIBLE DUST BAG COUPLING |
-
1989
- 1989-12-13 US US07/450,273 patent/US4967516A/en not_active Expired - Lifetime
-
1990
- 1990-04-23 CA CA002015129A patent/CA2015129C/en not_active Expired - Fee Related
- 1990-06-25 FR FR9007958A patent/FR2655585B1/en not_active Expired - Fee Related
- 1990-09-07 AU AU62290/90A patent/AU629034B2/en not_active Ceased
- 1990-11-21 JP JP2314495A patent/JPH03208558A/en active Granted
- 1990-12-04 DE DE4038634A patent/DE4038634A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE4038634A1 (en) | 1991-06-20 |
| DE4038634C2 (en) | 1992-04-16 |
| FR2655585B1 (en) | 1996-09-27 |
| JPH0581390B2 (en) | 1993-11-12 |
| JPH03208558A (en) | 1991-09-11 |
| US4967516A (en) | 1990-11-06 |
| FR2655585A1 (en) | 1991-06-14 |
| AU629034B2 (en) | 1992-09-24 |
| AU6229090A (en) | 1991-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |