JPH07139528A - Connecting tool for square timber - Google Patents

Abstract

PURPOSE:To connect square timbers to each other without injuring the square timbers such as connecting holes and freely change the assembling specification even after forming assembly by providing a pair of pinchedly fitting parts to be arranged along one face and the other adjoining face of the square timber. CONSTITUTION:A pinchedly fitting body 1 is provided with a pair of receiving parts 11 receiving one faces of square timbers A, and a pair of pinchedly fitting parts 12 being arranged along the other faces adjacent to the one faces of the square timbers received with the receiving parts 11, on both lengthwise end parts of a trapezoidal wooden plate. The respective receiving parts 11 are provided with receiving faces 11a of which extended lines F1 from the receiving parts are met squarely, the width dimension H of the receiving face 11a is formed a little shorter than a half of the thickness of a square timber, the mutual square timbers can be pinchedly connected together without providing connecting holes on the square timber, and an optional shaped three-dimensional object such as shelf or chair can be easily assembled and formed by the use of a plurality of such connecting tools. After forming assembly, the assembling specification such as the height of a shelf can be freely changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting member of a square bar suitable for forming an assembled type of shelf, chair, table, etc. using a square bar.

[0002]

2. Description of the Related Art Generally, an assembled shelf or the like is provided with a connecting hole penetrating each frame member at each connecting part of the frame member composed of an angle, and a pair of the frame members is arranged along one surface of the frame member. Using coupling fittings having fastening portions and having through holes formed in these fastening portions, and tightening bolts and nuts, each fastening portion of the coupling fittings is arranged along each coupling portion of an adjacent frame member, The tightening bolts are inserted through the through holes provided in the respective fastening portions of the connecting fitting and the connecting holes provided in the respective connecting portions of the respective frame members, and the respective frame members are connected by tightening the nuts. It forms shelves.

[0003]

However, the conventional one is
Not only a through hole is provided in a fastening portion of a connecting fitting for connecting a frame member such as a shelf, but a connecting hole is also provided in each connecting portion of the frame member to connect adjacent frame members. Therefore, the frame members will be damaged, and since the frame members to be connected to each other are determined in advance, the shape of the shelf or the like will be specified, and the one having an arbitrary shape can be formed. Moreover, since each frame member can be connected only at a specific position where the connecting hole is formed, for example, in the case of a shelf, the height of the shelf plate can be freely selected. It wasn't.

The present invention has been made in view of the above points.
The purpose is to connect square timbers to each other without damaging them such as connecting holes to square timbers that are used as frame materials such as shelves, and by using multiple connecting tools, three-dimensional objects such as shelves and chairs of any shape. In addition to easily assembling and forming, the assembly specifications such as the height of the shelf plate can be freely changed even after the assembly and formation.

[0005]

In order to achieve the above object, in the present invention, a pair of receiving portions 11 for receiving one surface of a square bar.
And a pair of sandwiching parts 1 having one pair of sandwiching parts 12 along the other surface adjacent to one surface of the square bar received by the receiving part 11, and a sandwiching part of these sandwiching bodies 1. And a receiving member 11 of each of the sandwiching members 1.
Is provided with the receiving surfaces 11a whose extension lines are orthogonal to each other, and the width dimension of these receiving surfaces 11a is made shorter than the half thickness of the square bar.

Further, the sandwiching portion 12 is provided with end faces 12a whose extension lines are orthogonal to each other, and the lengths of the receiving face 11a and the end face 12a of the receiving part 11 are made shorter than 1/2 thickness of the square bar. Is preferred.

From the intersection of a horizontal X-direction line, a Y-direction line orthogonal to the X-direction line and extending in the horizontal direction, and a Z-direction line perpendicular to the X and Y-direction lines and extending vertically. A corner body 3 having three corner portions 3a, 3b, 3c having a receiving and sandwiching surface 31 of the square bar extending along the X, Y, Z direction lines, and a pair for receiving one side of the square bar. Receiver 11
A pair of sandwiching bodies 1 including a pair of sandwiching portions 12 along one surface of the square bar that is received by the receiving portion 11 and adjacent to the other surface thereof.
And a tightening body 2 that draws the sandwiching body 1 toward the corner body 3 side. Each receiving portion 11 of each sandwiching body 1 includes a receiving surface 11a whose extension lines are orthogonal to each other, and The sandwiching part 12 includes end faces 12a whose extension lines are orthogonal to each other, and the width dimension of the receiving sandwiching face 31 of the corner body 3 and the receiving face 11a of the sandwiching body 1 and the receiving face of the receiving part 11 are provided. Surface 11a
The length of the end face 12a and the end face 12a may be shorter than the half thickness of the square bar.

[0008]

The extension lines are orthogonal to each other in the pair of sandwiches 1,
There are a pair of receiving surfaces 11a for receiving one surface of the square timber, and a pair of sandwiching portions 12 along the other surface adjacent to the one surface of the square timber,
Moreover, since the width dimension of the receiving surface 11a is shorter than the half thickness of the square bar, one receiving surface of two adjacent square bars in an orthogonal state is received by each receiving surface 11a of each sandwich 1, Fastener 2
By moving the sandwiching portions 12 of each sandwiching body 1 in the pulling direction,
The other surface adjacent to the one surface can be sandwiched and firmly connected. Since the timbers are sandwiched and connected in this manner, the timbers are not damaged by providing a connecting hole or the like in the timbers, and moreover, by using a plurality of connecting tools, shelves, chairs, tables, etc. The three-dimensional object can be easily assembled and formed, and the assembly specifications such as the height of the shelf plate can be freely changed even after the assembly and formation. Further, since the timber is connected by sandwiching it without providing a connecting hole or the like, the timber can be easily disassembled only by loosening the tightening of the tightening body 2, and the disassembled timber can be re-assembled. It is also possible to assemble and form another three-dimensional object by utilizing it.

Further, in the case of connecting square members which are orthogonal to each other in a plane T shape or a plane cross shape, two opposing surfaces of the square members are received by the receiving surface 11a of the sandwiching body 1 and the end face of the sandwiching portion 12 is received. 12a
Will be connected by abutting against the square bar that has received two surfaces by the receiving surface 11a. Therefore, the end surface 12a is an end surface whose extension lines are orthogonal to each other, and the receiving surface 11a.
And the end face 12a are the lengths such that the two opposing surfaces of the square bar can be received by the receiving surface 11a, that is, 1 of the square bar.
By making the thickness shorter than 1/2, it is possible to surely receive the two opposing surfaces of the square bar on the receiving surface 11a without interfering with each other of the end surfaces 12a. In this state, the two sandwiched portions 12 are sandwiched. Can be worn, and therefore
As shown in FIG. 6, even if the timbers are orthogonal to the plane T-shape, and as shown in FIG. 7, the timbers can be firmly connected to each other, so that the range of use of the connecting tool can be widened. Can be done.

Further, from an intersection of a horizontal X-direction line, a Y-direction line orthogonal to the X-direction line and extending in the horizontal direction, and a Z-direction line orthogonal to the X and Y-direction lines and extending vertically. A corner body 3 provided with three corner portions 3a, 3b, 3c having a receiving and sandwiching surface 31 of the square bar extending along the X, Y, Z direction lines, and a pair of the sandwich bodies 1 and The tightening body 2 is provided, and the width dimension of the receiving and sandwiching surface 31 of the corner body 3 and the receiving surface 11a of the sandwiching body 1 and the receiving surface 11 of the receiving portion 11 are provided.
When the length of a and the end face 12a is shorter than the half thickness of the square bar, one surface of the square bar orthogonal to the three-dimensional direction is received and clamped at each corner 3a, 3b, 3c of the corner body 3. The surface 31 and the receiving surface 11a of each holding body 1 receive them, and the tightening body 2 pulls the holding portion 12 of each holding body 1 toward the corner body 3 side, thereby holding these holding portions 12a. With the receiving and sandwiching surface 31 of the corner body 3, a square member orthogonal to the three-dimensional direction can be firmly sandwiched from two other surfaces adjacent to the one surface, so that the square member can move in the three-dimensional direction. It is possible to easily assemble and form three-dimensional objects such as shelves and chairs that are orthogonal to each other.

[0011]

EXAMPLE A connector according to the present invention is a timber made of wood or the like,
The square members can be connected without damaging the connecting holes or the like, and a frame such as a shelf can be assembled. The structure shown in FIG. 1 is one set of the sandwiching body 1, By using the tightening body 2 that moves the sandwiching portion 12 of the sandwiching body 1 in the pulling direction, a square member orthogonal to the two-dimensional direction is sandwiched and connected by the tightening operation of the tightening body 2. It is the one.

Therefore, the sandwich 1 is provided with a pair of receiving portions 11 for receiving one surface of the square bar A at both ends in the length direction of the trapezoidal wooden board, and the square bar A for receiving by the receiving section 11. A pair of sandwiching parts 12 are provided along one surface adjacent to the other surface. The receiving portion 11 and the sandwiching portion 12 are formed by, for example, forming one side in the thickness direction of the sandwiching body 1 from both end surfaces in the lengthwise direction over a predetermined length. The portion 11 is provided with receiving surfaces 11a having extension lines F1 drawn from these receiving portions orthogonal to each other, and the width dimension H of these receiving surfaces 11a.
Is formed to be slightly shorter than the half thickness of the square timber, and when one surface of the square timber A is received by the receiving surface 11a of one set of the sandwiching bodies 1, the inner facing surface of each sandwiching body 1 is In order not to interfere with each other, each of the holding portions 12 is provided with an end face 12a at which extension lines F2 drawn from the holding portions are orthogonal to each other, and the length of the receiving surface 11a N
Is formed to be slightly shorter than a half thickness of a square bar, and a square bar A orthogonal to a plane T shape as shown in FIG. 6 or a plane cross shape as shown in FIG. Is received by the receiving surface 11a of the sandwiched body 1 and the end surface 1 of the sandwiched portion 12 is received.
When the 2a is abutted and connected to the square bar A whose two sides are received by the receiving surface 11a, the abutting end face 12a is prevented from interfering, and the two opposite sides of the square bar A are received by the receiving surface 11a
I am able to accept it.

Further, the fastening bolts 2 of the tightening body 2 each of which is composed of a fastening bolt 21 and a nut 22 screwed to the fastening bolt 21 are located inward of the respective receiving surfaces 11a of the sandwiching bodies 1.
1 is provided with a pair of through holes 13 and the fastening bolts 2 are provided at the end portions of the through holes 13 that open to the outer side.
A counterbore is provided for reducing the protrusion of the head portion 1 and the nut 22 with respect to the outer surface of the sandwiched body.

In the tightening body 2, one of the head of the fastening bolt 21 and the nut 22 is housed in the counterbore of the through hole 13 provided in the one sandwiching body 1, and Nut 22
The other one is stored in the counterbore of the through hole 13 provided in the other sandwiching body 1. In addition, the tightening body 2 is
It may be held in advance by one set of the sandwiching bodies 1, or when the square members are connected without holding in advance in the sandwiching bodies 1, the through hole 1
You may make it insert in 3. In addition, the nut 22
1, a cap nut is used as shown in FIG. 1, but an ordinary nut having a threaded hole or a wing nut may be used.

Next, description will be made on the case of connecting square members using the connecting tool constructed as described above.

However, since each holding body 1 is provided with the receiving surface 11a whose extension lines are orthogonal to each other, it is possible to connect two square members in an L shape or a T shape. That is, as shown in FIGS. 2 to 4, each receiving surface 1 of the pair of sandwiches 1
1a receives one side a of two timbers A, and
The sandwiching portions 12 of the sandwiching bodies 1 of the set are inserted into the through holes 13 of each sandwiching body 1 in a state of being aligned with two other surfaces b adjacent to the one surface a of each of the square members A. By tightening the nuts 22 into the tightening bolts 21 of the tightening body 2, the respective sandwiching portions 12 of each sandwiching body 1 are moved in the pulling direction, and these sandwiching portions 12
The above-mentioned square pieces A can be sandwiched between them, and these square pieces A can be firmly connected. That is, since the width dimension H of the receiving surface 11a of each of the sandwich members 1 is shorter than the half thickness of the square member, the square members without interfering with the facing surfaces of the pair of sandwich members 1. A can be firmly sandwiched and its connecting strength can be increased. Moreover, since each square A is not provided with a connecting hole, the connecting positions of the squares can be arbitrarily changed. It can also be connected.

Therefore, it is possible to assemble and form the frame of the shelf as shown in FIG. 5, for example. The frame of this shelf is composed of four first timbers A1 that are pillars, and two second timbers A2 that are installed between the upper edges of the first timbers A1 of the first timbers A1 that face each other in the width direction of the shelves. And two third timbers A3 installed between the middle portions of the first timbers A1 facing each other in the length direction of the shelf. When connecting the first timbers A1 and the second timbers A2, As shown in FIG. 2, one surface of the first and second square members A1 and A2 is received by the receiving surface 11a of the pair of sandwiching bodies 1 and each sandwiching portion 12 of the pair of sandwiching bodies 1 is received. By tightening each sandwiching body 1 with the tightening body 2 in a state in which the first and second square members A1 and A2 are arranged along two other surfaces adjacent to the one surface. Timber A1, A
2 can be firmly connected, and the first square A
When connecting 1 and the 3rd square A3, said 1st and 2nd
Similar to the connection of the square members A1 and A2, the receiving surface 1 of the pair of sandwiches 1
1a receives one surface of the first and third square members A1 and A3, and each sandwiching portion 12 of the pair of sandwiching bodies 1 is adjacent to the one surface of the first and third square members A1 and A3. The first and third square members A1 and A3 can be firmly connected to each other by tightening the sandwiching bodies 1 with the tightening bodies 2 in a state of being along the other two surfaces.

Further, since the first to third corner members are connected without providing a connecting hole, the height of the third members A3, in other words, the shelf plate of the shelf shown in FIG. The height can be changed arbitrarily.

In FIG. 5, B and C are shelf boards,
One shelf board B is supported by the end surface 12a of the one-side sandwiched body 1 of each set, and the other shelf board C is supported by the third square bar A3.

On the other hand, the sandwiching portion 12 of each sandwiching body 1 is provided with end faces 12a whose extension lines are orthogonal to each other, and the length N between the receiving face 11a and the end face 12a is 1 / 2
Since the thickness is shorter than the thickness, in the case where the end faces 12a of the sandwich members 1 are butted and the square members A are connected in a plane T shape or a plane cross shape as shown in FIG. The square bar A can be reliably received by each of the receiving surfaces 11a of each of the sandwiches 1 without interfering with each other of the end faces 12a of each of the sandwiches 1.

The one shown in FIG. 6 uses two sets of the sandwiching body 1 and the tightening body 2 and, of two square bars orthogonal to the plane T-shape, one of the square bars A faces the other. , The one surface of the other timber A is received by each of the receiving surfaces 11a of the two sets of the nipping bodies 1, and each nipping portion 12 is connected to the two other surfaces of the one timber adjacent to the two surfaces, and the other Of the square bar A along the other side adjacent to the one side, and further tightening the tightening body 2 with the end surface 12a of the sandwiching body 1 of each set abutting against the other square bar A. Each square timber A is connected. Therefore, as shown by the chain line in FIG. 5, it is possible to assemble and form a frame shelf in which the middle portions of the third square members A3 are connected by the fourth square members A4.

Further, in the structure shown in FIG. 7, four sets of the sandwiching bodies 1 and the tightening bodies 2 are used, and the two faces of each of the square members intersecting in a plane cross shape are used for the four sets of the sandwiching bodies 1. In addition to receiving by the receiving surface 11a, each of the sandwiching parts 12 is aligned with two other surfaces adjacent to the two surfaces of each square, and further tightened with the end faces 12a of the sandwiching bodies 1 of each set abutting each other. The square members A are connected by tightening the insert body 2. Therefore, for example, in the middle in the width direction of the shelf shown in FIG. 5, a pair of first rectangular members A1 facing the first rectangular members A1.
Through the interposition of square pieces, the upper ends of these first square pieces are connected by the two second square pieces A2, the middle part is connected by the three third square pieces A3, and the middle parts of the third square pieces A3 are connected. As shown in FIG. 7, it is possible to assemble and form a rack having a frame structure in which the fourth corner members 4 are connected in a plane cross shape. Next, an embodiment of the connector shown in FIG. 8 will be described.

This connecting tool uses a corner body 3 in addition to the sandwiching body 1 and the tightening body 2 described above, and the corner body 3 and the sandwiching body 1 and the tightening body 2 extend in a three-dimensional direction. The square bar A is sandwiched so that it can be connected,
Since the sandwiching body 1 and the tightening body 2 are common to those shown in FIG. 1, the description of the sandwiching body 1 and the tightening body 2 will be omitted.

As shown in FIG. 8, the corner body 3 is formed by connecting three right-angled triangular wooden boards in a triangular pyramid shape so that the corners of the right angles are the apexes. 3a, 3b, and 3c include a horizontal X-direction line, a Y-direction line orthogonal to the X-direction line and extending in the horizontal direction, and a Z-direction line orthogonal to the X and Y-direction lines and extending in the vertical direction. A receiving and sandwiching surface 31 of the square bar A extending from the intersection along the X, Y, Z direction lines is provided.

These receiving and sandwiching surfaces 31 are formed at right angles by the end surfaces of two adjacent wooden boards among the above three wooden boards, and one surface of the receiving and sandwiching surface 31 receives one surface a of the timber A and the other. The square bar A can be sandwiched between the side surface and the sandwiching portion 12 of the sandwich body 1.

Further, each of the receiving and sandwiching surfaces 31 is formed such that the width dimension H thereof is slightly shorter than the half thickness of the square bar.
The one surface a of the square bar A is attached to the receiving and sandwiching surface 31 and the sandwich body 1.
The receiving surfaces 11a of the first and second receiving surfaces 11a are arranged so that the facing surfaces of the corner body 3 and the sandwiching body 1 do not interfere with each other. Further, a pair of through holes 32, through which the fastening bolts 21 of the tightening body 2 are formed, are provided on the three surfaces of the corner body 3 and each of which includes a fastening bolt 21 and a nut 22 screwed to the fastening bolt 21. ing. In addition, inside the corner body 3, a connecting body for connecting the three wooden boards is fixed by a fixing means such as an adhesive.

Next, description will be given of the case where the square members are connected by using the connecting tool configured as described above.

On the corner body 3, however, the XY line is formed at the intersection of the X-direction line, the Y-direction line, and the Z-direction line.
Since three corner portions 3a, 3b, 3c having the receiving and sandwiching surface 31 extending along the Z-direction line are provided, for example, FIG.
~ As shown in Fig. 15, it is possible to connect the square members A extending along the X, Y, Z direction lines, and it is possible to form the frame rack as shown in Fig. 16. .

First, as shown in the connecting portion B of FIG. 16, that is,
As shown in FIG. 9, when connecting three corner members A extending along the X, Y, Z direction lines from the intersection of the X, Y, Z direction lines, one corner body 3 and two sandwiched bodies 1, the receiving and sandwiching surface 31 of each of the corners 3a, 3b, 3c of the corner body 3 and the receiving surface 11a of the sandwich body 1 receive one surface of each of the square members A and Through the through holes 13, 3 of the sandwiching body 1 and the corner body 3 in a state where the sandwiching portion 12 of the sandwiching body 1 is along both side surfaces adjacent to the one surface of each square bar A.
Nut 2 to the fastening bolt 21 of the tightening body 2 inserted in
By tightening 2, the sandwiching portion 12 of the sandwiching body 1 is pulled toward the corner body 3 side, and the sandwiching portion of the receiving sandwiching surface 31 and the sandwiching portion 12 of the sandwiching body 1 are separated. A square bar A along the Z direction line and a square bar A along the X and Y direction lines can be sandwiched between
The square members A along these X, Y, Z direction lines can be firmly connected. That is, in the corner body 3, the width dimension H of the receiving and sandwiching surface 31 is shorter than the half thickness of the square material, and in the sandwich body 1, the width dimension H of the receiving surface 11a is half the square material. Since the thickness is shorter than the thickness, the square bar A can be firmly sandwiched without interfering with the facing surfaces of the corner body 3 and the sandwich body 1, and the connection strength thereof can be increased.

In addition, like the connecting portion B in FIG. 16, that is,
Even when the square bar A along the Z-direction line shown in FIG. 9 continuously extends further upward from the intersection as shown by the chain line in FIG. 9, as in the case shown by the solid line in FIG. The corner body 3 and the two sandwiching bodies 1 can be used for connection as described above.

Further, like the connecting portion B of FIG. 16, the square bar A along the Z direction line shown by the solid line and the chain line in FIG.
In the case where they are separated at the intersections as shown in FIG. 2, two corner bodies 3 and four sandwiching bodies 1 are used, and each corner body 3 is connected so that each corner portion 3a, 3b, 3c thereof is continuous. A square bar A that is vertically opposed to the lower corner body 3 and the two sandwiching bodies 1 along the X and Y direction lines, and a square bar A that extends downward from the intersection point along the Z direction line. Can be connected in the same manner as in FIG. 9, and the upper corner bodies 3 and 2 can be similarly connected.
The square member A along the X-Y direction line and the square member extending upward along the Z-direction line from the intersection can be connected by one sandwich 1. In this case, the two corner bodies 3 may be connected by inserting the tightening body 2 into the through holes 32 of the opposed surfaces. By doing so, the square members A along the X and Y direction lines can be sandwiched between the receiving and sandwiching surfaces 31 of the corner body 3, and the connection strength can be further enhanced.

When the square bar A along the X-direction line shown in FIG. 9 further extends horizontally from the intersection as shown in FIG. 11 like the connecting portion C in FIG. Uses two corner bodies 3 and four sandwiching bodies 1, and makes each corner body 3 face each other so that the respective corner portions 3a, 3b, 3c are continuous, and With the two sandwiches 1, a square bar A along the Y / Z direction line and a square bar A extending rightward from the intersection point along the X direction line can be connected in the same manner as in the case of FIG. In addition, the corner member 3 on the left side and the two sandwiching bodies 1 can connect the rectangular member A along the Y-Z direction line and the rectangular member A extending leftward along the X-direction line from the intersection. In this case as well, the two corner bodies 3 may be connected by inserting the tightening body 2 into the through holes 32 of the opposed surfaces. By doing so, the square bar A along the Y-Z direction line can be sandwiched between the receiving and sandwiching surfaces 31 of the corner body 3, and the connection strength can be further enhanced.

In addition, like the connecting portion D of FIG. 16, that is,
As shown in FIG. 12, a rectangular bar A along the X-direction line shown in FIG. 11 is separated at the intersection, and a rectangular bar A along the Z-direction line is separated.
Also extends continuously above the intersection,
Similar to what is shown in FIG. 11, two corner bodies 3 and four sandwiching bodies 1 can be used to connect as described above.

Further, as shown in the connecting portion D of FIG.
When the square timber A along the Z-direction line indicated by is separated at the intersections as shown in FIG. 13, four corner bodies 3 and four sandwiching bodies 1 are used as shown in FIG. , Each corner body 3 is made to face left and right and front and back so that each corner portion 3a, 3b, 3c is continuous in a cross shape,
The corner member 3 on the lower right side and the one sandwiching body 1 connect the rectangular member A extending downward along the Z direction line from the intersection point and the rectangular member A extending rightward along the X direction line from the intersection point. You can
Similarly, a square bar A extending upward from the intersection along the Z-direction line and a square bar A extending rightward from the intersection along the X-direction line between the corner body 3 on the upper right side and one sandwich 1 are provided. A square bar A that can be connected and further extends downward along the Z direction line from the intersection point between the lower left corner body 3 and one sandwiching body 1.
And a square bar A extending leftward along the X-direction line from the intersection point.
Similarly, the corner member 3 on the upper left side and one sandwiching body 1 similarly extend upwardly along the Z-direction line from the intersection point, and to the left side along the X-direction line from the intersection point. It is possible to connect the extending timber A, and further to connect the four corner bodies 3
A square bar A extending along the Y direction line by inserting and connecting the tightening body 2 into the through hole 32 of the opposed surface, and a square bar A extending leftward and rightward along the X direction line from the intersection. Further, the square bar A extending vertically from the intersection along the Z-direction line can be sandwiched between the receiving and sandwiching surfaces 31 to be connected.

13 and 14 also shows a case in which a square bar A along the Y-direction line shown in FIG. 13 extends continuously in the horizontal direction from the intersection as shown by the chain line in the same figure. Similar to the above, the four corner bodies 3 and the four sandwiching bodies 1 can be used for connection as described above.

In addition, like the connecting portion E in FIG. 16, that is,
As shown in FIG. 15, in the case where each square A along the X, Y, Z direction lines extends in both directions with respect to the intersection while being separated at the intersection, eight corner bodies 3 are used,
Opposing corner members 3 can be connected by the tightening member 2 to connect and connect the square members A extending along the X, Y, and Z direction lines between the receiving and holding surfaces 31. .

Further, as in the connecting portion G of FIG.
When the square bar A extending along the Y-direction line further extends in the horizontal direction from the intersection and the square bar A extending along the Z-direction line extends downward from the intersection, the same as that shown in FIG. 13. Can be connected.

Further, as shown in the connecting portion C of FIG.
Is orthogonal to the side T-shape, they can be connected as described above by using one set of the sandwiching bodies 1 as in the case shown in FIG. As described above, when the square members are connected to each other in a T-shape in a plane, they can be connected as described above using a plurality of sets of the sandwiching bodies 1 as in the case shown in FIG.

Therefore, by combining the connecting structure shown in FIGS. 9 to 15 with the connecting structure shown in FIGS. 2 and 6, the rack of the frame as shown in FIG. 16 can be assembled and formed. Also, by using a plurality of connecting tools, not only the shelves as shown in FIG. 16, but also chairs, tables, etc. having the above-described connecting structures can be assembled and formed, and also for partitioning. It can also be used for scaffolding used in frameworks and construction sites.
In the case of a frame for partitioning or a scaffolding, the height can be easily adjusted only by vertically shifting the sandwiching positions of the connecting portions of the square members that are vertically connected.

In the embodiment described above, each sandwich 1
Although the corner body 3 and the corner body 3 are formed of a wooden plate, they may be formed of other metal plates, or may be formed by using a synthetic resin or a light metal material.
In addition to being formed in a trapezoidal shape as shown in, the corner body 3 may be formed in a triangular pyramid shape, and the apex on the side of the intersection of the X, Y, and Z direction lines may be formed. It may be formed into a truncated truncated pyramid shape.

Further, the tightening body 2 is formed by the fastening bolts 21 and the nuts 22 and has, for example, a U-shape having opposing pieces facing each other with a gap wider than the thickness of the pair of sandwiching bodies 1. Using a tightening body composed of a member and a fastening bolt screwed to one opposing piece of the U-shaped member, a pair of sandwiching bodies 1 is provided between the other opposing piece of the U-shaped member and the fastening bolt. Alternatively, the corner body 3 and the sandwiching body 1 may be tightened, and one set of the sandwiching bodies 1 may be moved in the pulling direction with respect to each other, or the sandwiching body 1 may be pulled toward the corner body 3 side. The structure is not limited as long as it can.

Further, the square bar A may be not only wood but also a synthetic resin or a metal square pipe. When connecting a square member made of a material having a small slip resistance such as a synthetic resin, the receiving and sandwiching surface 31 of the corner body 3 and the sandwiching body 1 are joined together.
It is preferable to provide an anti-slip layer made of a material having a large frictional resistance such as rubber on the receiving surface 11a and the sandwiching portion 12.

[0043]

As described above, according to the present invention, a pair of receiving portions 11 for receiving one surface of a square bar and a pair of sandwiching members along another surface adjacent to one surface of the square bar for receiving by the receiving section 11. A pair of sandwiching bodies 1 each including a portion 12, and a sandwiching portion 1 of these sandwiching bodies 1.
2 includes a tightening body 2 that moves the pulling direction 2, and each receiving portion 11 of each sandwiching body 1 has a receiving surface 11a whose extension lines are orthogonal to each other. Since it is shorter than the half thickness of the square bar, it is adjacent in an orthogonal state.
By holding one surface of the square bar of the book at each receiving surface 11a of each sandwiching body 1 and moving the sandwiching portion 12 of each sandwiching body 1 by the tightening body 2 in the pulling direction, the sandwiching is performed. In the portion 12, the adjoining square members can be sandwiched between two other surfaces adjoining the one surface to firmly connect them. Since the timbers are sandwiched and connected in this manner, the timbers are not damaged by providing a connecting hole or the like in the timbers, and moreover, by using a plurality of connecting tools, shelves, chairs, tables, etc. The three-dimensional object can be easily assembled and formed, and the assembly specifications such as the height of the shelf plate can be freely changed even after the assembly and formation. Further, since the square members are connected by sandwiching them without providing a connecting hole or the like, they can be easily disassembled by simply loosening the tightening of the tightening body 2.
In addition, it is possible to assemble and form another three-dimensional object by reusing the disassembled timber.

Further, when the sandwiching portion 12 is provided with end faces 12a whose extension lines are orthogonal to each other, and the lengths of the receiving face 11a and the end face 12a of the receiving part 11 are made shorter than 1/2 thickness of the square bar. Is for receiving two opposing surfaces of a square member by the receiving surface 11a of the sandwich body 1 and connecting the end surface 12a of the sandwiching portion 12 to each other, when connecting the square members orthogonal to the plane T shape or the plane cross shape. Even if it is decided to butt and connect to a square bar that has received two surfaces on the receiving surface 11a, the two opposed surfaces of the square bar can be reliably received on the receiving surface 11a without interfering with each other of the end surfaces 12a. Since it can be sandwiched between the sandwiching portions 12 in this state, even when the square bar is orthogonal to the plane T-shape as shown in FIG. 6, the square bar is flat as shown in FIG. Even if they intersect in a letter shape, they can be firmly connected. It is possible to widen the application range.

From the intersection of a horizontal X-direction line, a Y-direction line orthogonal to the X-direction line and extending in the horizontal direction, and a Z-direction line orthogonal to the X and Y-direction lines and extending in the vertical direction. A corner body 3 provided with three corner portions 3a, 3b, 3c having a receiving and sandwiching surface 31 of the square bar extending along the X, Y, Z direction lines, and a pair of the sandwich bodies 1 and The tightening body 2 is provided, and the width dimension of the receiving and sandwiching surface 31 of the corner body 3 and the receiving surface 11a of the sandwiching body 1 and the receiving surface 11 of the receiving portion 11 are provided.
When the length of a and the end face 12a is shorter than the half thickness of the square bar, one surface of the square bar orthogonal to the three-dimensional direction is received and clamped at each corner 3a, 3b, 3c of the corner body 3. The surface 31 and the receiving surface 11a of each holding body 1 receive them, and the tightening body 2 pulls the holding portion 12 of each holding body 1 toward the corner body 3 side, thereby holding these holding portions 12a. With the receiving and sandwiching surface 31 of the corner body 3, a square member orthogonal to the three-dimensional direction can be firmly sandwiched from two other surfaces adjacent to the one surface, so that the square member can move in the three-dimensional direction. It is possible to easily assemble and form three-dimensional objects such as shelves and chairs that are orthogonal to each other.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a connector of the present invention.

FIG. 2 is a perspective view showing a state in which square members are connected using the connecting tool.

FIG. 3 is a front view of the same.

FIG. 4 is a side view in which a part of FIG. 3 is sectioned.

5 is an explanatory view showing a frame of a shelf assembled and formed by using the connecting tool of FIG. 1. FIG.

FIG. 6 is an explanatory view of a case where the connection tool of FIG. 1 is used to connect in a plane T shape.

FIG. 7 is an explanatory view of a case where the connection tool of FIG. 1 is used to connect in a plane cross shape.

FIG. 8 is an exploded perspective view of another connector.

9 is an explanatory view showing a state where square members extending in a three-dimensional direction are connected using the connecting tool of FIG.

FIG. 10 is an explanatory view of a state where square members extending in a three-dimensional direction are connected using the connecting tool of FIG.

FIG. 11 is an explanatory view showing a state where square members extending in a three-dimensional direction are connected using the connecting tool of FIG.

FIG. 12 is an explanatory view showing a state where square members extending in a three-dimensional direction are connected using the connecting tool of FIG.

FIG. 13 is an explanatory view of a state where square members extending in a three-dimensional direction are connected using the connecting tool of FIG.

FIG. 14 is a side view of the state in which the sandwiched body of FIG. 13 is omitted.

FIG. 15 is a plan view showing a state in which four upper corner bodies of eight corner bodies facing each other vertically are omitted.

16 is an explanatory view showing a frame of a shelf assembled and formed by using the connecting tool of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamping body 11 Receiving part 11a Receiving surface 12 Clamping part 12a End surface 2 Tightening body 3 Corner body 3a-3c Corner part 31 Retaining clamping surface

Claims (3)

[Claims] 1. A pair of receiving portions 11 for receiving one surface of a square bar,
A pair of sandwiching bodies 1 provided with a pair of sandwiching portions 12 along one surface of the square bar that is received by the receiving portion 11 and adjacent to the other surface thereof.
And a tightening body 2 for moving the sandwiching portion 12 of the sandwiching body 1 in the pulling direction, and each receiving portion 11 of each sandwiching body 1
Is provided with receiving surfaces 11a whose extension lines are orthogonal to each other, and the width dimension of these receiving surfaces 11a is made shorter than 1/2 thickness of the above-mentioned square wood. 2. The sandwiching portion 12 has end faces 12a whose extension lines are orthogonal to each other, and the lengths of the receiving face 11a and the end face 12a of the receiving portion 11 are shorter than 1/2 thickness of the square bar. Item 1
The timber connecting device described. 3. An intersection of a horizontal X-direction line, a Y-direction line orthogonal to the X-direction line and extending in the horizontal direction, and a Z-direction line perpendicular to the X and Y-direction lines and extending in the vertical direction. XY
-Corner body 3 provided with three corner portions 3a, 3b, 3c having a receiving and sandwiching surface 31 of the square timber extending along the Z-direction line, and a pair of receiving portions 11 for receiving one surface of the square timber. And a pair of sandwiching parts 12 along the other surface adjacent to one surface of the square bar received by the receiving part 11, and a pair of the sandwiching bodies 1 and the corner body 3 Tightening body 2 that pulls to the side
Each of the receiving portions 11 of the sandwiching body 1 has a receiving surface 11a whose extension lines are orthogonal to each other, and the sandwiching portion 12 is provided with an end surface 12a whose extension lines are orthogonal to each other. The width dimensions of the receiving and holding surface 31 of the body 3 and the receiving surface 11a of the holding body 1 and the lengths of the receiving surface 11a and the end surface 12a of the receiving portion 11 are set to be shorter than 1/2 thickness of the square bar. A timber connecting tool characterized by being.