AU2008258332B2 - Method of processing an interlocking floor board - Google Patents

Method of processing an interlocking floor board Download PDF

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Publication number
AU2008258332B2
AU2008258332B2 AU2008258332A AU2008258332A AU2008258332B2 AU 2008258332 B2 AU2008258332 B2 AU 2008258332B2 AU 2008258332 A AU2008258332 A AU 2008258332A AU 2008258332 A AU2008258332 A AU 2008258332A AU 2008258332 B2 AU2008258332 B2 AU 2008258332B2
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AU
Australia
Prior art keywords
floor board
saw
cut
kerf
blank
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.)
Ceased
Application number
AU2008258332A
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AU2008258332A1 (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
Original Assignee
YEKALON INDUSTRY Inc
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Filing date
Publication date
Application filed by YEKALON INDUSTRY Inc filed Critical YEKALON INDUSTRY Inc
Publication of AU2008258332A1 publication Critical patent/AU2008258332A1/en
Application granted granted Critical
Publication of AU2008258332B2 publication Critical patent/AU2008258332B2/en
Ceased 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

Abstract

A method is used for manufacturing a floor at an interface between neighboring two parts on a large blank (101). The blank (101) is cut firstly on the front face with a saw (104), then is cut secondly on the opposite side with the saw (104), and the first and second saw kerf are cut through at the interface between neighboring two parts. Thus neighboring two parts are separated. As cutting on the front face and the opposite side of the blank successively, and a head of the saw (104) being sharp-angled or gradient configuration, the width of the blank (101) cut off is less than the thickness of the saw (104) at the position where the kerfs are cut through. Therefore, the loss of kerf is reduced.

Description

METHOD OF PROCESSING AN INTERLOCKING FLOOR BOARD Technical Field The present invention relates to a method of processing a floor board, and more particularly to a method of processing an interlocking floor board. Background Art Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field. 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. When paving the floor boards, a tongue of one floor board is interlocked into a groove of another adjacent board, i.e., interlocking mating is formed. Repeated as such, a plurality of floor boards can be jointed into one piece so as to form a flooring with a nearly integral effect. When the flooring needs to be disassembled, the tongue of a floor board is disengaged from the groove of another adjacent floor board. When making floor boards, 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. As shown in Figs. I and 2, 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. After the floor board blank is cut, 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 1 procedure, there is no special advantageous effect to the subsequent manufacturing of the grooves or tongues. Summary of the Invention It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative. A preferred form of 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. According to the present invention, there is provided a method of processing a floor board, the method comprises the steps of: (1) cutting a floor board blank, wherein the blank is cut firstly on a front face of the blank using a saw and then cut secondly on a back face of the blank with the identical saw, and wherein kerfs of the first and second cuts are communicating with each other at an interface of the kerfs so that two adjacent floor board parts are separated, and wherein the saw has a head with a sharp-angled or inclined configuration so that a width of each of the kerfs at the interface is less than the thickness of the saw; (2) processing grooves or tongues on the resultant floor board parts, which includes milling grooves or tongues at relative edges of said floor board parts with a miller cutter; wherein the cutting positions of the first and second cuts correspond to the tenon and/or groove configuration to be processed. Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to". 2 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. 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. It can be seen from said technical solution that due to the two cuts on the front and back faces plus the saw head with a sharp-angled or inclined configuration, the thickness of the blank cut off at a position where kerfs are linked will be less than the thickness of the saw, thereby reducing the kerf loss; furthermore, 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. Brief Description of the Drawings Fig. 1 is a schematic view of cutting a large floor board blank according to the prior art; Fig. 2 is a schematic view after separate floor board parts are cut off from the floor board blank; 3 Fig. 3a to 3f are schematic views of cutting by a saw with a stepwise inclined configuration according to one embodiment of the present invention; Fig. 4 is a schematic view of kerf loss when cutting by a saw with a stepwise inclined configuration; Fig. 5 is a schematic view of kerf loss when cutting by a saw with an integral inclined configuration; Fig. 6 is a schematic view of kerf loss using a conventional processing method when the edges of two adjacent floor board parts are both processed as tenons. Fig. 7 is a schematic view of kerf loss using a sharp-angled saw when the edges of two adjacent floor board parts are both processed as tenons. Fig. 8 is a schematic view of kerf loss using another sharp-angled saw when the edges of two adjacent floor board parts are both processed as tenons. Preferred Embodiments of the Description 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. In Fig. 3b, 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. In the embodiment, the saw is a disk-structured electric saw and the edge thereof is provided with a stepwise inclined configuration as shown in the drawing. For the purpose of easy depiction, the edge of the saw is depicted as a head of the saw according to the cross sectional effect in the present invention. 4 In Fig. 3d, 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. It can be seen from Figs. 3a-3f that 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. In Fig. 4, 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. 4 that 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. It can be seen from Fig. 4 that 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. Compared with the conventional manufactured method, the kerf loss of a thickness of 12 can be saved in each cut. Furthermore, 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. 5 In Fig. 5, 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. Compared with Fig. 7, 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. It can be known from said embodiments that due to the two cuts on the front and back faces of the blank plus the saw head having a sharp-angled or inclined configuration, the thickness of the blank cut off at a position where kerfs are linked will be less than the thickness of the saw, thereby reducing the kerf loss; furthermore, 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. 6

Claims (7)

1. A method of processing a floor board, the method comprises the steps of: (1) cutting a floor board blank, wherein the blank is cut firstly on a front face of the blank using a saw and then cut secondly on a back face of the blank with the identical saw, and wherein kerfs of the first and second cuts are communicating with each other at an interface of the kerfs so that two adjacent floor board parts are separated, and wherein the saw has a head with a sharp-angled or inclined configuration so that a width of each of the kerfs at the interface is less than the thickness of the saw; (2) processing grooves or tongues on the resultant floor board parts, which includes milling grooves or tongues at relative edges of said floor board parts with a miller cutter; wherein the cutting positions of the first and second cuts correspond to the tenon and/or groove configuration to be processed.
2. The method of processing a floor board according to claim 1, wherein when the opposing edges of the two adjacent floor board parts are both processed as grooves or tongues, the head of the saw has the centrosymmetrically sharp-angled configuration; and that the kerfs of the first and second cuts have the same central line; and that 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 communicating at the interface.
3. The method of processing a floor board according to claim 1, wherein when one of the opposing edges of the two adjacent floor board parts is processed as the groove while the other is processed as the tongue, the head of the saw has the inclined configuration; and 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 that the distance therebetween is equal to or slightly less than the thickness of the saw; and that 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 communicating at the interface. 7
4. The method of processing a floor board according to claim 3, wherein the inclined configuration of the head of the saw is a stepwise inclined configuration or an integral inclined configuration.
5. The method of processing a floor board according to any one of claims I through 4, wherein the kerf depths of the first and second cuts are equal to or slightly greater than a half of the thickness of the floor board blank.
6. The method of processing a floor board according to claim 2, wherein the sharper the sharp-angled configuration is, the smaller the width of each of the kerfs at the interface becomes.
7. A method of processing a floor board substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings and/or examples. 8
AU2008258332A 2007-06-01 2008-05-09 Method of processing an interlocking floor board Ceased AU2008258332B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200710074680.1 2007-06-01
CNA2007100746801A CN101314231A (en) 2007-06-01 2007-06-01 Method for processing lock catch of lock catch floor
PCT/CN2008/070921 WO2008148324A1 (en) 2007-06-01 2008-05-09 A method of manufacturing a floor

Publications (2)

Publication Number Publication Date
AU2008258332A1 AU2008258332A1 (en) 2008-12-11
AU2008258332B2 true AU2008258332B2 (en) 2013-08-29

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AU2008258332A Ceased AU2008258332B2 (en) 2007-06-01 2008-05-09 Method of processing an interlocking floor board

Country Status (10)

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

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EP2570564A3 (en) * 2011-09-16 2014-08-20 Spanolux N.V. Div. Balterio An apparatus and a method for assembling panels and locking elements
US9816270B2 (en) * 2012-06-19 2017-11-14 Valinge Innovation Ab Mechanical locking system for floorboards
EP3798385A1 (en) * 2019-09-24 2021-03-31 Välinge Innovation AB Building panel
CN111702231A (en) * 2020-07-09 2020-09-25 博深普锐高（上海）工具有限公司 Processing technology of stone plastic floor lock catch
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Also Published As

Publication number Publication date
PT2169142E (en) 2014-08-25
KR101244569B1 (en) 2013-03-25
EP2169142A1 (en) 2010-03-31
KR20100039299A (en) 2010-04-15
CN101688399A (en) 2010-03-31
EP2169142B1 (en) 2014-07-16
PL2169142T3 (en) 2014-12-31
RU2009148620A (en) 2011-07-10
ES2500065T3 (en) 2014-09-30
EP2169142A4 (en) 2012-02-22
CA2692524C (en) 2014-04-08
CN101314231A (en) 2008-12-03
CA2692524A1 (en) 2008-12-11
RU2442866C2 (en) 2012-02-20
AU2008258332A1 (en) 2008-12-11
WO2008148324A1 (en) 2008-12-11

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FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired