EP2169142B1 - A method of manufacturing a floor - Google Patents

A method of manufacturing a floor Download PDF

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Publication number
EP2169142B1
EP2169142B1 EP08734276.2A EP08734276A EP2169142B1 EP 2169142 B1 EP2169142 B1 EP 2169142B1 EP 08734276 A EP08734276 A EP 08734276A EP 2169142 B1 EP2169142 B1 EP 2169142B1
Authority
EP
European Patent Office
Prior art keywords
floor board
saw
cut
blank
kerf
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.)
Active
Application number
EP08734276.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2169142A4 (en
EP2169142A1 (en
Inventor
Yongsheng Du
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yekalon Industry Inc
Yekalon Ind Inc
Original Assignee
Yekalon Industry Inc
Yekalon Ind Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yekalon Industry Inc, Yekalon Ind Inc filed Critical Yekalon Industry Inc
Priority to PL08734276T priority Critical patent/PL2169142T3/pl
Publication of EP2169142A1 publication Critical patent/EP2169142A1/en
Publication of EP2169142A4 publication Critical patent/EP2169142A4/en
Application granted granted Critical
Publication of EP2169142B1 publication Critical patent/EP2169142B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/12—Slitting marginal portions of the work, i.e. forming cuts, without removal of material, at an angle, e.g. a right angle, to the edge of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0138—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0138—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • E04F2201/0146—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane with snap action of the edge connectors
    • 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
    • E04F2201/027—Non-undercut connections, e.g. tongue and groove connections connected by tongues and grooves, the centerline of the connection being inclined to the top surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/041—Tongues or grooves with slits or cuts for expansion or flexibility

Definitions

  • the present invention relates to a method of processing a floor board, and more particularly to a method of processing an interlocking floor board.
  • the Floor board enjoys great popularity as an indoor ground decorative material.
  • the current flooring is usually formed by jointing together relatively small strip-shaped floor boards, in which the interlocking floor board is commonly used.
  • the interlocking floor board has become one of the main products in the flooring in recent years due to its characteristics of easy assembly, no gluing and repeatable disassembly and assembly.
  • the interlocking structure of the interlocking floor board comprises grooves and tongues made on mutually opposite sides of the floor boards.
  • a tongue of one floor board is interlocked into a groove of another adjacent board, i.e., interlocking mating is formed.
  • a plurality of floor boards can be jointed into one piece so as to form a flooring with a nearly integral effect.
  • the tongue of a floor board is disengaged from the groove of another adjacent floor board.
  • a large floor board blank needs to be cut into a plurality of small floor board blanks 101 according to a desired floor board size.
  • the large floor board blank is directly cut by a saw 102 according to the prior art.
  • the saw cuts through the blank each time of cutting.
  • This processing method leads to apparent kerf loss.
  • the thickness of a kerf 103 generated upon each cut is larger than that of the saw, so a floor board material having the thickness of at least one saw will be lost.
  • corresponding grooves or tongues are milled by a milling cutter at peripheral edges of the floor board blank; since planar cutting surfaces are formed during cutting procedure, there is no special advantageous effect to the subsequent manufacturing of the grooves or tongues.
  • WO 03/083 234 A1 discloses the separation of floor elements by means of upper and lower saw blades, which create kerfs with rectangular geometry.
  • EP 1 754 582 A1 and EP 1 754 581 A1 discloses profiled saw blades for cutting upper and lower kerfs, wherein the kerfs are in a distance, such that a material bridge remains in between them.
  • EP 1 941 980 A1 has been published after the filing date of the present application and discloses a saw with a profile, such that it may also provide the function of a miller cutter when cutting floor board blanks. However, it is not disclosed that kerfs which are cut with the profiled saw are directly adjacent to each other, and further it is not disclosed which kind of profile the profiled saw blade has.
  • the present invention intends to solve the problem of great kerf loss caused by direct cut-through of a conventional method of processing a floor and to provide a method of processing a floor board with reduced kerf loss.
  • the solution to said technical problem of the present invention is to provide a method of processing a floor board, comprising the following steps of: (1) cutting a floor board blank: at an interface between two adjacent floor board parts of a large floor board blank, the blank is cut firstly on a front face of the blank with a saw and then cut secondly on a back face of the blank with a saw, and kerfs of the first and second cuts are linked with each other at the interface between the two adjacent floor board parts so that the two adjacent floor board parts are separated.
  • the head of the saw has a sharp-angled or inclined configuration such that the thickness of the blank cut off at a position where the kerfs are linked is less than the thickness of the saw; (2) processing grooves or tongues: milling the grooves or tongues at edges of said floor board parts cut off with a miller cutter.
  • the head of the saw when the opposing edges of the two adjacent floor board parts are both processed as grooves or tongues, the head of the saw has preferably a centrosymmetrically sharp-angled configuration; the kerfs of the first and second cuts have the same central line; and an inner sharp angle formed by the kerf of the first cut and an inner sharp angle formed by the kerf of the second cut are linked at the interface between the two adjacent floor board parts.
  • the head of the saw when one of the opposing edges of the two adjacent floor board parts is processed as a groove while the other is processed as a tongue, the head of the saw has preferably an inclined configuration; the central line of the kerf of the first cut and the central line of the kerf of the second cut are parallel to each other and the distance therebetween is equal to or slightly less than the thickness of the saw; and an inner inclined angle formed by the kerf of the first cut and an inner inclined angle formed by the kerf of the second cut are linked at the interface between the two adjacent floor board parts.
  • the inclined configuration of the head of the saw may be a stepwise inclined configuration or an integral inclined configuration.
  • the kerf depths of the first and second cuts are preferably equal to or slightly greater than a half of the thickness of the floor board blank.
  • a saw can be selected according to a groove or tongue to be manufactured at the edges of the floor board blank, so that on the one hand, the kerf loss is reduced; and that on the other hand, grooves or tongues are made while cutting the floor board blank so as to reduce the work of processing grooves or tongues.
  • FIG.3a to 3f One preferable embodiment according to the present invention is shown in Figs.3a to 3f , illustrating a process of cutting with a saw having a stepwise inclined configuration.
  • Fig. 3a shows a large floor board blank prior to cutting.
  • a saw 104 with a stepwise inclined configuration is used to cut.
  • a first cut is made on a front face of the blank and the structure as shown in Fig. 3c is formed after removing the saw.
  • the drawings of embodiments of the present invention are all simplified cross-sectional views.
  • the saw is a disk-structured electric saw and the edge thereof is provided with a stepwise inclined configuration as shown in the drawing.
  • the edge of the saw is depicted as a head of the saw according to the cross-sectional effect in the present invention.
  • a second cut is made on a back face of the blank and the structure as shown in Fig. 3e is formed after removing the saw.
  • Fig. 3f shows subsequently processed tenon and groove structures, wherein the tenon is on the left and the groove is on the right.
  • the kerf depths of the first and second cuts are equal to each other and both slightly greater than a half of the thickness of the floor board blank; the kerfs of the first and second cuts are linked at the interface between two adjacent floor board parts 101 so that the two adjacent floor board parts are separated. Since the head of the saw is an inclined configuration, the thickness of the blank cut off at a position where the kerfs are linked is less than the thickness of the saw 104, and therefore kerf loss is notably reduced.
  • Figs. 4 to 8 show kerf losses generated by various cutting methods, wherein the structures of the processed floor board edges, i.e., complete tenon and groove structures, are shown for easy illustration; in the actual manufactured procedure as shown in Figs. 3a-3f , the cutting is conducted first and then the tenon and groove structures are manufactured.
  • the saw 104 is a stepwise inclined configuration with the thickness of 32 (3.2mm in fact, Fig.4 shows the 10-times enlarged effect, and so are the data shown in Figs. 5 , 6 , 7 and 8 ). It can be seen from Fig.
  • the left side of the first cut and the right side of the second cut are on the same line, which shows that the central line of the kerf of the first cut and the central line of the kerf of the second cut are parallel to each other and the distance therebetween are equal to the thickness of the saw; the lower edge of the first cut and the upper edge of the second cut are on the same line, which shows that the kerf depths of the first and second cuts are equal to each other and approximately equal to a half of the thickness of the blank.
  • the distance between the edges of the tenon and groove structures to be achieved is 20, which is 12 shorter than the thickness of the saw.
  • the kerf loss of a thickness of 12 can be saved in each cut.
  • the cutting positions of the first and second cuts correspond to the tenon and groove structures to be processed such that the work of processing grooves and tongues can be saved.
  • a saw 105 is an integral inclined structure with a thickness of 32. It can be seen from Fig. 5 that the central line of the kerf of the first cut and the central line of the kerf of the second cut are parallel to each other and the distance therebetween are slightly less than the thickness of the saw; the kerf depths of the first and second cuts are equal to each other and slightly greater than a half of the thickness of the blank.
  • the distance between the edges of the tenon and groove structures to be formed is 20.65, which is 11.35 shorter than the thickness of the saw. That is to say, the kerf loss of a thickness of 11.35 can be saved in each cut.
  • Fig. 6 shows kerf loss using a conventional processing method when the edges of the two adjacent floor board parts are both processed as tenons.
  • the thickness of the saw 102 is 32, and the whole large blank is cut through. It can be seen from Fig. 6 that the thickness of the blank cut off between upper edges of two tenons after processing is 68.2.
  • Fig. 7 shows kerf loss using a method according to the present invention when the edges of two adjacent floor board parts are both processed as tenons.
  • a sharp-angled saw 106 as shown is used to cut the blank on the front and back faces thereof. The thickness of the saw is still 32. The thickness of the blank cut off between upper edges of two tenons after processing is 52, which is 16.2 less than the kerf loss of Fig. 6 .
  • a saw 107 in Fig. 8 is much shaper and the thickness of the saw is still 32.
  • the thickness of the blank cut off between upper edges of two tenons after processing is 39.02, which is 29.18 less than the kerf loss of Fig. 6 .
  • a saw can be selected according to a groove or tongue to be processed at the edge of the blank, so that on the one hand, the kerf loss is reduced; and that on the other hand, grooves or tongues are made while cutting the blank so as to reduce the work of processing grooves or tongues.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
EP08734276.2A 2007-06-01 2008-05-09 A method of manufacturing a floor Active EP2169142B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08734276T PL2169142T3 (pl) 2007-06-01 2008-05-09 Sposób wytwarzania podłogi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100746801A CN101314231A (zh) 2007-06-01 2007-06-01 一种锁扣地板的锁扣加工方法
PCT/CN2008/070921 WO2008148324A1 (en) 2007-06-01 2008-05-09 A method of manufacturing a floor

Publications (3)

Publication Number Publication Date
EP2169142A1 EP2169142A1 (en) 2010-03-31
EP2169142A4 EP2169142A4 (en) 2012-02-22
EP2169142B1 true EP2169142B1 (en) 2014-07-16

Family

ID=40093179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08734276.2A Active EP2169142B1 (en) 2007-06-01 2008-05-09 A method of manufacturing a floor

Country Status (10)

Country Link
EP (1) EP2169142B1 (pl)
KR (1) KR101244569B1 (pl)
CN (2) CN101314231A (pl)
AU (1) AU2008258332B2 (pl)
CA (1) CA2692524C (pl)
ES (1) ES2500065T3 (pl)
PL (1) PL2169142T3 (pl)
PT (1) PT2169142E (pl)
RU (1) RU2442866C2 (pl)
WO (1) WO2008148324A1 (pl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998896B (zh) * 2008-04-07 2014-12-10 瓦林格创新股份有限公司 具有薄的表面层的基于木质纤维的镶板
CN101337362A (zh) * 2008-08-07 2009-01-07 姚中兴 镶板坯板的交错式锯切方法及锯切装置
US8806832B2 (en) 2011-03-18 2014-08-19 Inotec Global Limited Vertical joint system and associated surface covering system
EP2570564A3 (en) * 2011-09-16 2014-08-20 Spanolux N.V. Div. Balterio An apparatus and a method for assembling panels and locking elements
CA2876210C (en) * 2012-06-19 2019-10-29 Valinge Innovation Ab A method for dividing a board into a first panel and a second panel, a method of forming a mechanical locking system for locking of a first and a second panel, and building panels
CN120401756A (zh) 2019-09-24 2025-08-01 瓦林格创新股份有限公司 建筑镶板
EP3798385A1 (en) 2019-09-24 2021-03-31 Välinge Innovation AB Building panel
CN111702231A (zh) * 2020-07-09 2020-09-25 博深普锐高（上海）工具有限公司 一种石塑地板锁扣的加工工艺
CN112829009A (zh) * 2020-12-31 2021-05-25 浙江晶通塑胶有限公司 有效回收地板的软木废料的生产方法

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Publication number Priority date Publication date Assignee Title
DE3626748A1 (de) * 1986-08-07 1988-02-18 Peters W Maschf Messerwellenpaar zum schneiden von bahnartigem material, insbesondere wellpappe
CN87205169U (zh) * 1987-09-11 1988-07-20 灌县水输机厂 大理石、花岗石板材对剖机
SE501014C2 (sv) * 1993-05-10 1994-10-17 Tony Pervan Fog för tunna flytande hårda golv
BE1010487A6 (nl) * 1996-06-11 1998-10-06 Unilin Beheer Bv Vloerbekleding bestaande uit harde vloerpanelen en werkwijze voor het vervaardigen van dergelijke vloerpanelen.
CN2486301Y (zh) * 2001-07-02 2002-04-17 贵州黎阳机械厂 真空吸盘定位翻转剖切复合大型超薄板材设备
BRPI0308966B8 (pt) * 2002-04-03 2016-05-17 Vaelinge Innovation Ab tábua de assoalho
CN2597174Y (zh) * 2003-01-29 2004-01-07 莫阿新 木工精工多片圆锯床
DE202004001690U1 (de) * 2004-02-05 2004-04-08 Quadrifoglio Gmbh & Co. Kg Platte aus Natur- oder Kunststein
CN1743600A (zh) * 2004-08-31 2006-03-08 张世宝 竹质锁扣地板的制造方法
DE102005038975B3 (de) * 2005-08-16 2006-12-14 Johannes Schulte Verfahren zur Herstellung von Paneelen
EP1754582A1 (de) * 2005-08-20 2007-02-21 Matra Holz Martin Schumacher Verfahren zum Herstellen von Dielenelementen
EP1941980A1 (de) * 2007-01-05 2008-07-09 IHT GmbH Verfahren zur Herstellung von Platten mit Verbindungsprofilen
RU2365492C2 (ru) * 2007-05-14 2009-08-27 Иван Васильевич Малахов Круглопильный станок для продольной распиловки древесины

Also Published As

Publication number Publication date
CA2692524A1 (en) 2008-12-11
WO2008148324A1 (en) 2008-12-11
PL2169142T3 (pl) 2014-12-31
CN101688399A (zh) 2010-03-31
KR20100039299A (ko) 2010-04-15
AU2008258332B2 (en) 2013-08-29
RU2442866C2 (ru) 2012-02-20
RU2009148620A (ru) 2011-07-10
ES2500065T3 (es) 2014-09-30
CA2692524C (en) 2014-04-08
AU2008258332A1 (en) 2008-12-11
CN101314231A (zh) 2008-12-03
EP2169142A4 (en) 2012-02-22
EP2169142A1 (en) 2010-03-31
PT2169142E (pt) 2014-08-25
KR101244569B1 (ko) 2013-03-25

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