Splicing wood board adopting outwards-turned sharp-corner barbs for insertion

Abstract

The utility model provides a spliced wood board adopting outwards-turned sharp-angled barbs for insertion, a group of outwards-turned sharp-angled barbs formed by obliquely cutting a section of notch from the edge of a body are uniformly distributed on the butt joint end face of a unit wood chip at intervals, and the shape of the notch is matched with that of the outwards-turned sharp-angled barbs; the shapes and the distribution positions of the outwards-turned sharp-corner barbs on the butt joint end faces of every two adjacent unit wood chips are the same, but the directions of sharp corners of the outwards-turned sharp-corner barbs on the butt joint end faces of every two adjacent unit wood chips are opposite, and during splicing, the outwards-turned sharp-corner barbs of every two adjacent unit wood chips are obliquely inserted into the notches of the corresponding outwards-turned sharp-corner barbs of the opposite unit wood chips. The other butt-joint end faces of every two adjacent unit wood chips are attached together, and all the butt-joint end faces of every two adjacent unit wood chips are connected in a bonding mode through adhesives. According to the spliced wood board, when the outwards-turned sharp corner barbs on the butt joint end faces of the unit wood chips are machined, no material needs to be removed, wood loss cannot be caused, the total length of the spliced wood board is consistent with the accumulated length of the unit wood chips, and wood resources can be effectively saved.

Description

Technical Field

[0001] This utility model relates to a splicing board, specifically a splicing board that uses outward-facing sharp corner barbs for interlocking. Background Technology

[0002] To improve timber utilization, short, narrow pieces of wood or scraps are often further processed and spliced ​​into larger boards for use, reducing wood waste and conserving resources. Currently, most spliced ​​boards on the market are joined using a finger-jointing method. This involves milling the joint surfaces of the wood pieces to be joined into serrated tenons that can be interlocked, applying adhesive to the tenons, and then splicing the adhesive-coated wood pieces into a larger board using the finger-jointing method. The process is complete once the adhesive has fully cured.

[0003] When processing the joint surfaces of the unit wood pieces of this type of finger-jointed spliced ​​board into serrated tenons, a certain amount of material needs to be removed, resulting in a loss of wood. Furthermore, since the splicing length is reduced when using finger-joints, the total length of the spliced ​​board is shorter than the sum of the unit wood pieces. When many unit wood pieces are used to splice the board, the total wood loss is relatively large, and the final total length of the spliced ​​board is also much shorter than the sum of the unit wood pieces, resulting in wood waste. Utility Model Content

[0004] The purpose of this invention is to provide a spliced ​​wooden board with outward-curved sharp corners and barbed interlocking, which does not require the removal of any material when processing the joint end faces of the unit wood pieces, thus avoiding wood loss, and the total length of the spliced ​​wooden board is consistent with the cumulative length of the unit wood pieces.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A spliced ​​wooden board using outward-curved barbs is made of at least two unit wood pieces of the same thickness. The mating surfaces of the unit wood pieces are evenly spaced with a set of outward-curved barbs formed by a notch cut obliquely along their own edges. The shape of the notch matches the shape of the outward-curved barbs. The outward-curved barbs on the mating surfaces of two adjacent unit wood pieces have the same shape and distribution but the angle of the tips is opposite. When splicing, the outward-curved barbs of the two adjacent unit wood pieces are obliquely inserted into the notch of the corresponding outward-curved barb of the opposite unit wood piece, and the remaining mating surfaces of the two adjacent unit wood pieces are pressed together. Adhesive is also provided between all the mating surfaces of the two adjacent unit wood pieces for bonding.

[0007] The unit wood pieces of this utility model are spliced ​​by interlocking with outward-curved sharp corners and barbs, and then bonded together with adhesive. When processing the outward-curved sharp corners and barbs on the mating end faces of the unit wood pieces, it is only necessary to use a processing tool to diagonally cut a notch at the corresponding position of the mating end face of the unit wood piece to form an outward-curved sharp corner and barb that matches the notch. No material needs to be removed, so there is no loss of wood. Moreover, the total length of the spliced ​​wood piece is consistent with the cumulative length of the unit wood pieces, which can effectively save wood resources. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the spliced ​​wooden board of this utility model.

[0009] Figure 2 for Figure 1 Top view.

[0010] Figure 3 This is a three-dimensional structural diagram of the unit wood pieces of the spliced ​​wooden board of this utility model.

[0011] Figure 4 for Figure 3 Top view.

[0012] Figure 5 This is a schematic diagram of the three-dimensional structure of a conventionally finger-interlocking spliced ​​wooden board.

[0013] Figure 6 This is a three-dimensional structural diagram of a unit wood chip made by finger-interlocking splicing of wood panels.

[0014] In the diagram: 1-Mating end face, 2-Notch, 3-Outward-facing sharp corner barb, 4-Adhesive. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figures 1-4 As shown, the spliced ​​wooden board of this utility model is made of at least two unit wood pieces of the same thickness. The mating end face 1 of the unit wood pieces is evenly distributed with a set of outward-curved barbs 3 formed by a notch 2 cut obliquely from its own edge. The shape of the notch 2 matches the shape of the outward-curved barbs 3. The outward-curved barbs 3 on the mating end face 1 of two adjacent unit wood pieces have the same shape and distribution position but the angle of the barbs is opposite. When splicing, the outward-curved barbs 3 of two adjacent unit wood pieces are obliquely inserted into the notch 2 of the corresponding outward-curved barb 3 of the opposite unit wood piece, and the remaining mating end faces of the two adjacent unit wood pieces are attached together. Adhesive 4 is also provided between all the mating end faces 1 of the two adjacent unit wood pieces for bonding.

[0017] Furthermore, the mating end face 1 of the unit wood piece is set along the wood grain of the wood board so that the outward-curved sharp corner barb 3 is not easily broken off completely when processing the outward-curved sharp corner barb 3.

[0018] As a preferred technical solution, the longitudinal length L1 of the outward-curved barb 3 on the joint end face 1 of the unit wood chip is 5mm-20mm, and the transverse thickness of the root of the outward-curved barb 3 is 1mm-20mm.

[0019] As a preferred technical solution, the interval L3 between each pair of outwardly turned sharp barbs 3 evenly distributed on the joint end face 1 of the unit wood chip is more than 50mm.

[0020] As a preferred technical solution, the adhesive 4 is an environmentally friendly wood adhesive, which is beneficial to the physical and mental health of manufacturers and users.

[0021] like Figures 5-6 As shown, conventional finger-jointed spliced ​​wooden boards require material removal when machining the serrated tenons on the mating ends, resulting in wood waste. Furthermore, the finger-joint design reduces the splicing length, making the total length of the spliced ​​board shorter than the sum of the individual wooden pieces. In contrast, this invention utilizes an outward-curving, barbed joint for spliced ​​wooden boards... Figures 1-4 As shown, when processing the outward-curved barbs 3 on the mating end faces of the unit wood chips, it is only necessary to use a wedge-shaped processing tool to diagonally cut a notch 2 at the corresponding position on the mating end face 1 of the unit wood chips. The outer part of the notch 3 is automatically compressed and turns outward to form the outward-curved barb 3. The shape of the notch 2 matches the shape of the outward-curved barb 3. No material needs to be removed, and no wood loss will be caused. Although the outward-curved barbs 3 formed by processing the unit wood chips may crack slightly, satisfactory splicing strength can still be obtained after the outward-curved barbs 3 of two adjacent unit wood chips are interlocked, laterally compressed, and penetrated and bonded by the adhesive 4. In addition, since the splicing length is not reduced when using the outward-curved barb 3 interface, the total splicing length of the spliced ​​board is consistent with the cumulative length of the unit wood chips.

[0022] The above illustrations are merely typical embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A type of spliced ​​wooden board using outward-facing sharp-cornered barbed interlocking, characterized in that: The spliced ​​wooden board is made of at least two unit wood pieces of the same thickness. The mating end face (1) of the unit wood piece is evenly distributed with a set of outward-turned barbs (3) formed by cutting a notch (2) obliquely from its own edge. The shape of the notch (2) matches the shape of the outward-turned barbs (3). The outward-turned barbs (3) on the mating end face (1) of two adjacent unit wood pieces have the same shape and distribution position but the angle of the barbs is opposite. When splicing, the outward-turned barbs (3) of two adjacent unit wood pieces are obliquely inserted into the notch (2) of the corresponding outward-turned barb (3) of the opposite unit wood piece. The remaining mating end faces (1) of two adjacent unit wood pieces are also bonded together. Adhesive (4) is also provided between all the mating end faces (1) of two adjacent unit wood pieces for bonding.

2. The spliced ​​wooden board with outward-facing sharp corner barbs as described in claim 1, characterized in that: The mating end face (1) of the unit wood chip is set on the end face along the wood grain of the wood board.

3. The spliced ​​wooden board with outward-facing sharp corner barbs as described in claim 1, characterized in that: The longitudinal length L1 of the outward-turned sharp corner barb (3) of the unit wood chip joint end face (1) is 5mm-20mm, and the transverse thickness of the root of the outward-turned sharp corner barb (3) is 1mm-20mm.

4. The spliced ​​wooden board with outward-facing sharp corner barbs as described in claim 1, characterized in that: The spacing L3 between each pair of outward-curved barbs (3) evenly distributed on the joint end face (1) of the unit wood chip is more than 50mm.

5. The spliced ​​wooden board with outward-facing sharp corner barbs according to claim 1, characterized in that: The adhesive (4) is an environmentally friendly wood adhesive.

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