EP1048423B9 - A method for profiling laths for parquet and squaring machine suited to realize such a method - Google Patents
A method for profiling laths for parquet and squaring machine suited to realize such a method Download PDFInfo
- Publication number
- EP1048423B9 EP1048423B9 EP00108072A EP00108072A EP1048423B9 EP 1048423 B9 EP1048423 B9 EP 1048423B9 EP 00108072 A EP00108072 A EP 00108072A EP 00108072 A EP00108072 A EP 00108072A EP 1048423 B9 EP1048423 B9 EP 1048423B9
- Authority
- EP
- European Patent Office
- Prior art keywords
- lath
- chain
- laths
- engravings
- case
- 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 - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
- B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
- B27F1/02—Making tongues or grooves, of indefinite length
- B27F1/06—Making tongues or grooves, of indefinite length simultaneously along opposite edges of a board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2201/00—Joining sheets or plates or panels
- E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
- E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
Definitions
- the invention relates to a method of lath profiling used for making parquets and to a squaring machine which makes such a method for profiling laths.
- suitable squaring machines make on one lateral side of the laths a male profile joint and on the opposite lateral side a female profile joint.
- the joint profiles are connected one with each other and the floor surface is overlaid through a plurality of laths alongsided and connected one with each other joining the male element of each one in the female element of the adjacent lath.
- the squaring machines used (representing the closest prior art disclosing the preamble of method claim 1 and the preamble of device claim 6) comprise a frame provided with a plurality of operating units, each one having a rotating tool with a profile suitable for making in the lath the desired profile.
- the squaring machine is provided with a chain on which the working laths are head - tail aligned one after each other.
- the chain advances continuously along the longitudinal direction of the frame and the laths are hold adherent through suitable pressure means generally made by an higher track.
- the laths are worked in correspondence with the ribs by the operating units tools located two by two one opposed with another and operate at the same time on both ribs of the laths themselves.
- the lath advancement chains are composed by a plurality of grids one pivoted after another in order to make a closed ring which is advanced along the longitudinal direction of the frame through gears, being at least one of them motorized, which engage the grids.
- the chains are provided with slipping pads, which lean on sliding guide integral with the frame and internal to a protection case.
- the case width is lower than the finished width of the lath which is easily manufactured in correspondence with the ribs of the shaped tools applied to the operating heads.
- the parts of the lath to be manufactured project with respect to the case containing the chain and therefore they can be easily reached by the operating heads tools, which operate rotating on parallel planes or perpendicular with respect to the working surfaces.
- the chains used are slipping chains of the known type, built by the same applicant of the present patent.
- a disadvantage of the slipping chains is the limited speed of advance they permit, varying between 40 and 45 m/minute.
- Squaring machines which have advancing speeds reaching also 60/80 m/minute using slipping chains.
- the present invention is intended to overcome such disadvantages and limitations.
- operating heads forming longitudinal engravings on both faces and mounted on slanting saddles suitable for advancing the tool slantingly to said lath, are present in the squaring machine.
- the chain supporting the laths is a rolling chain and is provided with a plurality of supporting plates on which they rest the working laths.
- Each plate has its width both lower than the case width enclosing the chain and than the distance between the longitudinal engravings on each lath.
- the plate height is sufficient to define on each side a reentering area with respect to the case housing the chain, which is delimited on the bottom of the case itself, sideways from the plate side and higher up from the lower surface of the working lath.
- Such a reentering area allows the entering of the rotating tool slanting to the lath lower surface, on which the longitudinal engravings have to be made.
- the raising of the sliding plane of the laths with respect to the case plane housing the chain through a plate having a width lower with respect to the distance between the engravings to be made on the lath, together with the slanting position of the tools allows the manufacturing of the lath lower surface making on it longitudinal engravings, one distant from another of a lower quantity with respect to the case width housing the chain.
- the squaring machine of the invention As we can see in fig. 1 the squaring machine of the invention, indicated as a whole with 1, realizing the method being also an aim of the invention, comprises a base 2 supporting a plurality of operating heads 3, 4, 5, 6, 7, located one after another.
- Each couple of operating heads is formed by two opposite operating heads, each one placed on one side of the squaring machine according to the arrangement seen as a title of example in fig. 17, relative to the first couple of operating heads 3, comprising the left 3a and right 3b heads one opposite to another.
- the operating heads manufacture the laths L, which are advanced along the longitudinal direction of the squaring machine in the sense indicated by the arrow 8 of fig. 1 and 2.
- a plurality of laths is located one after another, leaning on a chain 9, which is winded as a ring between a back gear 10 and a shaped front slide 11, where the back gear 10 is rotated by a power group, indicated as a whole by 12.
- the chain 9, as we can see in greater detail in fig. 17, is a rolling chain, being composed by plurality of grids 13 linked one with another and of the type per se known, each one having a transverse pin 14 supported on its ends by rolling bearings 15, 16 leaning on respective tracks 17, 18 belonging to the frame 2 of the squaring machine.
- the chain 9 is housed on the case 19 belonging to the frame 2 of the squaring machine and each grid 13 of the chain 9 is provided with a supporting plate 20.
- Each plate 20 has a datum plane 21 preferably made using a material with a high coefficient of friction, on which the lower surface L' of the working laths L rests.
- a presser 22 holds the laths L adherent to the datum plane 21 and therefore also to the grid 13 of the chain.
- the profiling method of the laths which are the aim of the invention comprises, with reference to figs. 2 to 16, the following operations:
- the distance D between the engravings S', S" is lower than the width 24 of the case 19, each engraving being obtained using a rotating tool 3', 3", 4', 4" belonging to one of the operating heads 3a, 3b, 4a, 4b and having the rotating plane 30', 30", 40', 40” slanting with respect to the plane defined by the horizontal plane face L', L" of the lath L.
- each supporting plate 20 has its width 23 lower than the width 24 of said case 19 and the sides 25 vertically protruding from the case itself in order to define laterally to each lath L a zone Z limited by the lath L, by the side 25 of said plates 20 and by said case 19, suitable for housing the tools 3', 3" making said longitudinal engravings S' on the faces L' of said laths L leaning on the datum planes 21 of said plates 20.
- finishing tools 7', 7" are finished through finishing tools 7', 7", as we can see in figg. 2 and 13 to 15 obtaining finished profiles M', F'.
- tool and manufacture profiles made on the lath sides could be of a different type from the description, according to the final product we want to obtain.
- the plates put on the advance chain of the laths could be of a different form or dimensions according to the working laths, but these must have a width not higher than the distance between the engravings to be made on the lower face of the laths and on the case width.
Abstract
Description
- The invention relates to a method of lath profiling used for making parquets and to a squaring machine which makes such a method for profiling laths.
- It is known that, in order to make parquets, wood laths are currently used joined one with each other through joints made on their lateral sides.
- In particular, suitable squaring machines make on one lateral side of the laths a male profile joint and on the opposite lateral side a female profile joint.
- The joint profiles are connected one with each other and the floor surface is overlaid through a plurality of laths alongsided and connected one with each other joining the male element of each one in the female element of the adjacent lath.
- The squaring machines used (representing the closest prior art disclosing the preamble of method claim 1 and the preamble of device claim 6) comprise a frame provided with a plurality of operating units, each one having a rotating tool with a profile suitable for making in the lath the desired profile.
- The squaring machine is provided with a chain on which the working laths are head - tail aligned one after each other.
- The chain advances continuously along the longitudinal direction of the frame and the laths are hold adherent through suitable pressure means generally made by an higher track.
- During the advance the laths are worked in correspondence with the ribs by the operating units tools located two by two one opposed with another and operate at the same time on both ribs of the laths themselves.
- According to the known technique, the lath advancement chains are composed by a plurality of grids one pivoted after another in order to make a closed ring which is advanced along the longitudinal direction of the frame through gears, being at least one of them motorized, which engage the grids.
- The chains are provided with slipping pads, which lean on sliding guide integral with the frame and internal to a protection case.
- The case width is lower than the finished width of the lath which is easily manufactured in correspondence with the ribs of the shaped tools applied to the operating heads.
- In particular, the parts of the lath to be manufactured project with respect to the case containing the chain and therefore they can be easily reached by the operating heads tools, which operate rotating on parallel planes or perpendicular with respect to the working surfaces.
- The chains used are slipping chains of the known type, built by the same applicant of the present patent.
- A disadvantage of the slipping chains is the limited speed of advance they permit, varying between 40 and 45 m/minute.
- Squaring machines are known, which have advancing speeds reaching also 60/80 m/minute using slipping chains.
- These, in a similar way, are made by a plurality of grids one along another which, instead of sliding on the slides integral with the machine frame through pads, roll on the slides themselves through rolling bearings placed on the ends of a pin located transversally to each grid.
- In this way the sliding friction of the pads is substituted by the rolling friction of the bearings, obtaining a great wear reduction and also a great reduction of the need of maintenance intervention.
- However the rolling chains have the disadvantage of having widths higher than the correspondent slipping chains.
- Therefore they cannot be used on squaring machines which have to produce parquet laths with the same finished width of that produced on squaring machines provided with slipping chains.
- In fact, if the chain width, and therefore the case width holding it, is higher than the finished width of the working laths, the tools cannot reach the lath lower surface because of the obstacle due to the presence of the case protecting the chain.
- In order to work on such squaring machines laths having a finished width lower than the case width protecting the advance chain, it is necessary to locate two squaring machines and work on the laths placing them with their ribs projecting alternatively on one side and on the other, with respect to the covering case of the advance chain of each squaring machine.
- Alternatively it is possible to manufacture the laths passing them twice along the same squaring machine and, during each passage, to manufacture a lath rib projecting laterally from the protection case of the chain.
- It can be understood that both ways of operating imply, as well as a cycle time extension and greater difficulties of equipping the machines, even a lower dimensional precision on the finished product.
- At this regard, it has to be remembered that if the working panels are of the pre-defined type which is not smoothed after its location, the working allowances have to be very narrow (some centesimals), in order to prevent the covering difference which, when the work is finished, would be clearly evident.
- The present invention is intended to overcome such disadvantages and limitations.
- In particular, it is a first scope of the invention the realization of a method that allows, in a parquet lath squaring machine, the manufacturing of the lath lower surface in areas reentering with respect to the protection case width of the advance chain which supports them.
- It is another aim of the invention the realization of a squaring machine which, using a rolling chain, can manufacture laths with a width lower than the case width enclosing the chain.
- Said aims are reached through the realization of a method for parquet laths profiling placed along a tow chain enclosed in the squaring machine base case provided with a plurality of operating heads which, according to claim 1, comprises the following operations:
- engraving at least on the plane horizontal face of each lath towards said chain, a couple of longitudinal engravings developing for the whole length of said lath;
- milling both lateral ribs of each lath making on each rib a substantially plane and vertical surface developing for the whole length of the lath;
- shaping said lateral ribs for the whole length of each lath making on each of said ribs a male profile and on the opposite rib a female profile, each profile being made starting from the respective longitudinal engraving,
- According to a preferred form of realization, operating heads, forming longitudinal engravings on both faces and mounted on slanting saddles suitable for advancing the tool slantingly to said lath, are present in the squaring machine.
- In the squaring machine according to
claim 6 for realizing the method of the invention, the chain supporting the laths is a rolling chain and is provided with a plurality of supporting plates on which they rest the working laths. - Each plate has its width both lower than the case width enclosing the chain and than the distance between the longitudinal engravings on each lath. The plate height is sufficient to define on each side a reentering area with respect to the case housing the chain, which is delimited on the bottom of the case itself, sideways from the plate side and higher up from the lower surface of the working lath.
- Such a reentering area allows the entering of the rotating tool slanting to the lath lower surface, on which the longitudinal engravings have to be made.
- Advantageously, the raising of the sliding plane of the laths with respect to the case plane housing the chain through a plate having a width lower with respect to the distance between the engravings to be made on the lath, together with the slanting position of the tools, allows the manufacturing of the lath lower surface making on it longitudinal engravings, one distant from another of a lower quantity with respect to the case width housing the chain.
- Still advantageously, this allows the use of rolling chains, which are larger than the correspondent slipping chains, but they allow greater manufacturing speeds.
- Said aims and advantages will be better explained during the description of a preferred form of embodiment of the invention, which is given as an indicative but not limitative title and is referred to the accompanying drawings where:
- fig. 1 represents the lateral view of the squaring machine of the invention;
- fig. 2 represents in a schematic view the manufacturing sequence which the squaring machine of fig. 1 executes on the laths;
- figs. 3, 5, 7, 9, 11, 13, 15 represent in an enlarged view some of the manufacturings represented in fig. 2;
- figs. 4, 6, 8, 10, 12, 14, 16 represent enlarged areas of figs. 3, 5, 7, 9, 11, 13, 15;
- fig. 17 represents in a transverse section a part of the squaring machine of fig. 1.
- As we can see in fig. 1 the squaring machine of the invention, indicated as a whole with 1, realizing the method being also an aim of the invention, comprises a
base 2 supporting a plurality ofoperating heads - Each couple of operating heads is formed by two opposite operating heads, each one placed on one side of the squaring machine according to the arrangement seen as a title of example in fig. 17, relative to the first couple of
operating heads 3, comprising the left 3a and right 3b heads one opposite to another. - As well as the first couple of
operating heads 3 just cited, are recognized, also with reference to fig. 2: - a second couple of
operating heads 4, composed by the left 4a and right 4b heads one opposite to another, each one with a tool slanting respectively 4', 4" suitable to make a longitudinal engraving S" on the lath surface L" upwards; - a third couple of
operating heads 5 composed by the left 5a and right 5b heads one opposite another provided with tools, respectively 5', 5", milling the lateral ribs B', B" of the laths L; - a fourth couple of
operating heads 6 comprising left 6a and right 6b heads one opposite to another, provided with tools, respectively 6', 6" making on the lath ribs a respectively female F and male M profile; - a fifth couple of
operating heads 7 comprising left 7a and right 7b heads one opposite to another, each one having arespective tool 7', 7" for the finishing of male and female profiles previously manufactured. - The operating heads manufacture the laths L, which are advanced along the longitudinal direction of the squaring machine in the sense indicated by the
arrow 8 of fig. 1 and 2. - In particular, a plurality of laths is located one after another, leaning on a
chain 9, which is winded as a ring between aback gear 10 and a shapedfront slide 11, where theback gear 10 is rotated by a power group, indicated as a whole by 12. - The
chain 9, as we can see in greater detail in fig. 17, is a rolling chain, being composed by plurality ofgrids 13 linked one with another and of the type per se known, each one having atransverse pin 14 supported on its ends byrolling bearings respective tracks frame 2 of the squaring machine. - The
chain 9 is housed on thecase 19 belonging to theframe 2 of the squaring machine and eachgrid 13 of thechain 9 is provided with a supportingplate 20. - Each
plate 20 has adatum plane 21 preferably made using a material with a high coefficient of friction, on which the lower surface L' of the working laths L rests. - A
presser 22 holds the laths L adherent to thedatum plane 21 and therefore also to thegrid 13 of the chain. - When the
power group 12 advances thechain 9, the laths L move between the operating heads and are manufactured by the rotating tools which the operating heads are provided with. - The profiling method of the laths which are the aim of the invention comprises, with reference to figs. 2 to 16, the following operations:
- engraving on both lower L' and higher L" faces of each lath L of a longitudinal lower S' and higher S" engravings developing for the whole length of said lath L, as we can see in figg. 2 to 6;
- milling both longitudinal ribs B', B" of said lath L making on each one of them a surface I', I" which is substantially plane and vertical, developing for the whole length of said lath L as we can see in figg. 2, 7 and 8;
- shaping said lateral ribs B', B" and for the whole length of each lath L making on one B' of said ribs a male profile M and on the opposite rib B" a female profile F, each one of said profiles being made starting from the respective longitudinal engraving S', S", as we can see in figs. 2 and 9 to 12;
- finishing each one of said male and female M and F profiles making the finished male M' and female F' profiles which can be observed in figg. 2 and 13 to 16.
- According to the invention the distance D between the engravings S', S" is lower than the
width 24 of thecase 19, each engraving being obtained using arotating tool 3', 3", 4', 4" belonging to one of theoperating heads plane 30', 30", 40', 40" slanting with respect to the plane defined by the horizontal plane face L', L" of the lath L. - Ever according to the invention, each supporting
plate 20 has its width 23 lower than thewidth 24 of saidcase 19 and thesides 25 vertically protruding from the case itself in order to define laterally to each lath L a zone Z limited by the lath L, by theside 25 of saidplates 20 and by saidcase 19, suitable for housing thetools 3', 3" making said longitudinal engravings S' on the faces L' of said laths L leaning on thedatum planes 21 of saidplates 20. - Preferably after the milling of the male M and female F profiles, these are finished through
finishing tools 7', 7", as we can see in figg. 2 and 13 to 15 obtaining finished profiles M', F'. - It is clear that the method and the machine described can undergo variations not cited in the description and not represented in the figures.
- Therefore, e.g. the number of operating heads could be different and located differently from what has been shown and described.
- Further, the tool and manufacture profiles made on the lath sides could be of a different type from the description, according to the final product we want to obtain.
- Referring to the squaring machine, the plates put on the advance chain of the laths could be of a different form or dimensions according to the working laths, but these must have a width not higher than the distance between the engravings to be made on the lower face of the laths and on the case width.
- Further, its height must allow the insertion between the laths, the case and the plates of the slanting tools operating the engravings.
- We say that said executive variations and other eventual variation not cited, belonging to the claims, are intended as protected by the present claims.
Claims (8)
- A method for profiling laths for parquet aligned on a tow chain (9) enclosed in a case (19) of a base (2) of a squaring machine (1) provided with a plurality of operating heads, comprising the following operations:engraving at least on the plane horizontal face (L') of each lath (L) towards said chain a couple of longitudinal engravings developing for the whole length of said lath;milling both lateral ribs (B', B") of each lath forming on each rib a surface substantially plane and vertical developing for the whole length of the lath;shaping said lateral ribs for the whole length of each lath making on one of said ribs a male profile and on the opposite rib a female profile, each profile being made from the respective longitudinal engraving,
- Method according to claim 1) characterized in that said engravings (S', S") are made before on the lower face (L') towards said chain (9) and then on the upper face (L") upwards.
- Method according to claim 2) characterized in that on each face (L', L") of said lath (L) said engravings (S', S") are made at the same time and next to both ribs (B', B") of said lath (L).
- Method according to claim 1) characterized in that said millings suitable for making said surfaces (I', I") are made at the same time on both ribs (B', B") of said lath (L).
- Method according to claim 1) characterized in that each of said shaping operations, suited to make said male (M) and female (F) profiles, is followed by a finishing operation of said profiles.
- Squaring machine (1) suitable for realizing the method according to claim 1) comprising:a frame (2) supporting a plurality of operating heads (3a, 3b; 4a, 4b; 5a, 5b; 6a, 6b; 7a, 7b), each one provided with a rotating tool (3', 3"; 4'. 4"; 5', 5"; 6', 6"; 7', 7") for manufacturing said laths (L);a back gear (10) and a front shaped slide (11) supported by said frame, between which a closed rolling chain (9) supports the work laths (L) aligned one with each other;power means (12) coupled to said back gear (10) for the advance of said chain (9);a protecting case (19) receiving said chain (9), supported by said frame (2);a plurality of supporting plates (20) fixed to the chain (9) and provided with datum planes (21) on which the work laths (L) are rested, characterized in that each one of said supporting plates (20) has a width (23) lower than the width (24) of said case (19) and the lateral sides (25) vertically projecting from the case itself to define laterally to each lath (L) a zone (Z) limited by the laths (L), by the lateral sides of said plates (20) and said case (19), collecting tools (3', 3") for making longitudinal engravings (S') on the faces (L') of said laths (L) resting on the datum planes (21) of said plates (20).
- Squaring machine (1) according to claim 6), characterized in that said chain (9) is a rotating type chain, being composed by a plurality of grids (13) hingedly connected with each other through pins (14), each pin being supported in correspondence with each end of rolling means (15, 16) insisting on tracks (17, 18) belonging to the frame (2) of said squaring machine (1).
- Squaring machine (1) according to claim 6), characterized in that said operating heads are located in couples two by two one facing another, each operating head being placed on one side of the squaring machine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999VI000081A IT1307424B1 (en) | 1999-04-29 | 1999-04-29 | METHOD FOR PROFILING STRIPS FOR PARQUET AND SQUARING MACHINE SUITABLE TO CREATE SUCH METHOD. |
ITVI990081 | 1999-04-29 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1048423A2 EP1048423A2 (en) | 2000-11-02 |
EP1048423A3 EP1048423A3 (en) | 2001-09-26 |
EP1048423B1 EP1048423B1 (en) | 2003-09-24 |
EP1048423B9 true EP1048423B9 (en) | 2005-05-04 |
Family
ID=11427029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00108072A Expired - Lifetime EP1048423B9 (en) | 1999-04-29 | 2000-04-25 | A method for profiling laths for parquet and squaring machine suited to realize such a method |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1048423B9 (en) |
AT (1) | ATE250489T1 (en) |
DE (1) | DE60005431T2 (en) |
ES (1) | ES2208170T3 (en) |
IT (1) | IT1307424B1 (en) |
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Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR686874A (en) * | 1929-03-11 | 1930-07-31 | Anciens Etablissements Panhard | Parquet panel making machine |
CH249680A (en) * | 1944-10-28 | 1947-07-15 | Stalder Adolf | Process for the multi-sided processing of wooden panels and machine for carrying out this process. |
-
1999
- 1999-04-29 IT IT1999VI000081A patent/IT1307424B1/en active
-
2000
- 2000-04-25 DE DE60005431T patent/DE60005431T2/en not_active Expired - Fee Related
- 2000-04-25 ES ES00108072T patent/ES2208170T3/en not_active Expired - Lifetime
- 2000-04-25 AT AT00108072T patent/ATE250489T1/en not_active IP Right Cessation
- 2000-04-25 EP EP00108072A patent/EP1048423B9/en not_active Expired - Lifetime
Cited By (4)
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US8940216B2 (en) | 2006-09-15 | 2015-01-27 | Valinge Innovation Ab | Device and method for compressing an edge of a building panel and a building panel with compressed edges |
US9169654B2 (en) | 2009-12-17 | 2015-10-27 | Valinge Innovation Ab | Methods and arrangements relating to surface forming of building panels |
US9447587B2 (en) | 2009-12-17 | 2016-09-20 | Valinge Innovation Ab | Methods and arrangements relating to surface forming of building panels |
US9538842B2 (en) | 2011-05-06 | 2017-01-10 | Valinge Innovation Ab | Mechanical locking system for building panels |
Also Published As
Publication number | Publication date |
---|---|
EP1048423A2 (en) | 2000-11-02 |
EP1048423B1 (en) | 2003-09-24 |
DE60005431D1 (en) | 2003-10-30 |
EP1048423A3 (en) | 2001-09-26 |
IT1307424B1 (en) | 2001-11-06 |
DE60005431T2 (en) | 2004-07-01 |
ITVI990081A0 (en) | 1999-04-29 |
ITVI990081A1 (en) | 2000-10-29 |
ES2208170T3 (en) | 2004-06-16 |
ATE250489T1 (en) | 2003-10-15 |
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