JP2000205219A - Joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate manufacture by connecting a vertical member with a horizontal member while holding strength and surely tightening the member to fix, with simple constitution. SOLUTION: In this joint, a pair of joint main units 11 formed by folding a metal plate are opposed, in a condition holding a vertical pipe 21 with a horizontal pipe 30, these pipes are connected by tightening connection parts 31 by a bolt 35 and a nut 36. The joint, by forming a cutout from one end edge of a support part 29 along an end edge in a side of the connection part 31, can be easily folded to be formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the case of assembling a shelf or the like constituted by a vertical member and a horizontal member which are connected so as to be substantially orthogonal to each other, and adding a reinforcing stay to the shelf later. It is related to joints used for etc.

[0002]

2. Description of the Related Art Conventionally, as this type of joint, there has been known a joint for structural material disclosed in Registered Design No. 944209. This joint is formed by forming a pair of joint bodies using a steel plate material, holding the two orthogonal pipes facing each other with the joint bodies facing each other, and tightening the intermediate part of the joint body with bolts and nuts. , They can be connected and fixed. The intermediate portion of the joint body is inclined at an angle of 45 ° with respect to the two holding portions for holding the rectangular pipes at right angles. Further, a notch cut at an angle of 45 ° is provided at both ends of each holding portion. Then, the notches of the two joint bodies are engaged with each other, so that the intermediate portion of the joint body is tightened by bolts and nuts.

[0003]

However, in the conventional joint for structural material, the intermediate portion of the joint body is formed so as to be inclined with respect to the two holding portions, and the notches are engaged. Therefore, tightening of the intermediate portion of the joint body by the bolt and the nut is restricted. For this reason, there was a problem that each pipe could not be securely tightened by the joint. In addition, since the structure of the joint is very complicated, it takes a lot of time and effort to manufacture the joint.

[0004] The present invention has been made by focusing on the problems existing in the prior art as described above. The purpose is to connect the vertical member and the horizontal member while maintaining strength, and it is possible to securely tighten and fix,
An object of the present invention is to provide a joint that can be easily manufactured because of its simple configuration.

[0005]

In order to achieve the above object, the joint according to the first aspect of the present invention forms a pair of joint bodies by bending a metal plate.
With the joint members facing each other and holding a vertical member and a horizontal member extending in a direction substantially orthogonal to the vertical member,
A joint for connecting the vertical member and the horizontal member by tightening an intermediate portion of the joint body with a tightening member, and a holding portion for holding the vertical member from one side and a horizontal member in one of the up and down directions. Each joint body is composed of a supporting portion that supports from and a connecting portion that connects the holding portion and the supporting portion, and when the connecting portion is tightened by the tightening member, the holding portion or the supporting portion is deformed and the vertical member is deformed. Alternatively, the horizontal member is configured to be engaged and held.

A joint according to a second aspect of the present invention is the joint according to the first aspect, wherein a notch is formed at a connecting portion between the holding portion and the connecting portion or a connecting portion between the supporting portion and the connecting portion. It is.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 2, the material 12 forming the joint main body 11 is made of a steel plate material, and is formed in a substantially L-shape in a developed state. The joint body 11 is formed by bending the material 12.

[0008] The first bent piece 13 is formed at one end of the material 12 at a front end side of a first valley fold 14 formed in the width direction. The second bent piece 15 is surrounded at one end of the material 12 by the first valley fold 14 and a second valley fold 16 formed parallel to the base end side thereof. Further, small projections 17 for preventing slippage are formed at four corners of the second bent piece 15 by press molding. The third bent piece 18 is surrounded at one end of the material 12 by the second valley fold 16 and a first mountain fold 19 formed parallel to the base end side.

The holding portion 20 is provided with the first to third bent pieces 1.
3, 15 and 18, each fold 14, 16,
19 is turned by 90 ° and bent to form a substantially U-shaped cross section. This holding unit 20 is provided in FIG.
Of the vertical pipe 21 as a vertical member indicated by a two-dot chain line.

The fourth bent piece 22 is formed at the other end of the raw material 12 at a tip end side of a third valley fold 23 formed in the width direction. The fifth bent piece 24 is surrounded at the other end of the material 12 by the third valley fold 23 and a fourth valley fold 25 formed parallel to the base end side. The notch 26 is formed at the base end side of the fifth bent piece 24 by cutting it into a strip in the width direction. The sixth bent piece 27 is surrounded by the fourth valley fold 25 and a second mountain fold 28 formed in a direction orthogonal to the fourth valley fold 25 at a portion where both ends of the material 12 intersect.

The supporting portion 29 is provided with the fourth to sixth bent pieces 2.
2, 24, 27, each fold 23, 25,
28 is turned by 90 ° and bent to form a substantially L-shaped cross section. The support portion 29 is formed in a shape to be fitted to a peripheral surface of a horizontal pipe 30 having a rectangular cylindrical shape as a horizontal member indicated by a two-dot chain line in FIG.

The connecting portion 31 is adjacent to the third and sixth bent pieces 18 and 27 at a portion where both ends of the material 12 intersect, and the first and second mountain folds 19 and 28 are provided.
Surrounded by The connection hole 32 is formed by penetrating a circular hole at the center of the connection portion 31. Further, the notch 33 is formed by cutting a portion where both ends of the material 12 intersect in a strip shape.

The step portion 34 is formed by connecting the connecting portion 31 and the sixth bent piece 27.
Are formed along the second mountain fold. The step portion 34 cuts the notch 26 formed between the connecting portion 31 and the sixth bent piece 27 beyond the edge of the second mountain fold 28, and further cuts the second mountain fold 2
8 is formed by bending the material 12.

As shown in FIG. 1, the fastening member comprises a bolt 35 having a hexagonal hole and a nut 36. The joint is used by arranging the two joint bodies 11 configured as described above to face each other, inserting a bolt 35 into the connection hole 32 of each joint body 11, and screwing the joint 35 with a nut 36.

Next, a method of using the joint configured as described above will be described. As shown in FIG. 1, first, in one joint body 11, the holding portion 2
0 is arranged so as to fit on the peripheral surface of the vertical pipe 21 shown by the two-dot chain line, and the support portion 29 is arranged so as to fit on the peripheral surface of the horizontal pipe 30 shown by the two-dot chain line. Subsequently, the other joint body 11 is arranged so as to face the one joint body 11 and is arranged so as to engage with the peripheral surface of the horizontal pipe 30. Then, the other joint body 11 is slid along the peripheral surface of the horizontal pipe 30 so that the holding portion 20 is fitted to the peripheral surface of the vertical pipe 21 and the support portion 29 is fitted to the peripheral surface of the horizontal pipe 30. Let it.

At this time, the pair of joint bodies 11
As shown in FIG. 3, a pair of holding portions 2 arranged to face each other
0 holds the peripheral surface of the vertical pipe 21 in the left-right direction, and a pair of support portions 29 disposed opposite to each other
0 is supported from above and below. Further, the connecting portions 31 arranged facing each other are connected to the respective connecting holes 32.
Are arranged so as to be aligned in the horizontal direction. The vertical pipe 21 and the horizontal pipe 30 are connected and fixed by inserting a bolt 35 into both connection holes 32 and screwing a nut 36 into the hexagonal hole of the bolt 35 and tightening the hexagon wrench. .

Next, the operation of the joint will be described. As shown in FIG. 3, the pair of holding parts 20 arranged opposite to each other hold the vertical pipe 21 by sandwiching the peripheral surface of the vertical pipe 21. The small projections 17 projecting from the corners of the second bent piece 15 bite into the acrylonitrile-styrene resin that thinly coats the peripheral surface of the vertical pipe 21, and the holding section 20 slides on the vertical pipe 21. To prevent On the other hand, the pair of support portions 29 arranged opposite to each other support the horizontal pipe 30 by sandwiching the peripheral surface of the horizontal pipe 30.

As shown in FIG. 4, when a bolt 35 serving as a fastening member is screwed into a nut 36 and the joint body 11 arranged opposite to the fastening member is fastened and fixed, the holding portion 2 is used.
A force is applied to the 0th third bent piece 18 in a direction approaching each other, and the base end side of the second bent piece 15 tightens the peripheral surface of the vertical pipe 21 accordingly. Then, the pair of holding parts 20 arranged opposite to each other are firmly fixed to the vertical pipe 21.

At this time, as shown by a two-dot chain line in FIG. 4, the tip side of the second bent piece 15 and the first bent piece 13
The connecting portion 31 and the support portion 29 are rotated slightly around the second valley fold 16 as an axis, and the connecting portion 31 and the support portion 29 are screwed in the screwing direction of the bolt 35 around the first mountain fold 19 (see FIG. 4
(Clockwise in FIG. 4) or in the screwing direction of the nut 36 (counterclockwise in FIG. 4). The pair of support portions 29 arranged opposite to each other are connected to the horizontal pipe 3.
The lateral pipe 30 is firmly fixed so that the peripheral surface of the 0 is bitten in the horizontal direction by the fourth and sixth bent pieces 22 and 27.

When the bolt 35 is further advanced, the holding portion 2
Since the movement of 0 is further restricted by the vertical pipe 21, both support portions 29 rotate so that the interval between the second mountain folds 28 of both support portions 29 is reduced. That is, one support portion 29 rotates clockwise in FIG. 4, and the other support portion 29 rotates counterclockwise in FIG.

The effects exerted by the above embodiment will be described below. The holding part 20 and the supporting part 29 are joints according to the embodiment.
And a pair of joint bodies 11 composed of
The support member 29 is configured to be deformed to engage and hold the horizontal pipe 30 when the connecting portion 31 is tightened by the tightening member. Therefore, while maintaining strength, the vertical pipe 21 and the horizontal pipe 3
0 can be connected, securely fastened and fixed, and the simple configuration facilitates manufacture.

According to the joint of the embodiment, since the notch 26 is provided at the connecting portion between the support portion 29 and the connecting portion 31, the third bent piece 18, the connecting portion 31 and the sixth bent piece 27 are provided. Can be separated from the fifth bent piece 24,
The 90 ° bending of the first mountain fold 19 and the second mountain fold 28 can be easily performed.

According to the joint of the embodiment, since the step portion 34 is formed by forming the notch 26 at the connection portion between the support portion 29 and the connection portion 31, the vertical pipe 21 and the horizontal pipe can be easily connected. The pipe 30 can be connected and securely fixed, and can be easily manufactured.

According to the joint of the embodiment, since the material 12 made of a steel plate is bent and formed, the structure is very simple, so that the joint can be easily manufactured. Also, in forming the material 12,
Since the configuration is simple, it can be easily cut and formed.

According to the joint of the embodiment, since the joint body 11 having the same shape is used so as to be opposed to the joint body, only one kind of the joint body 11 has to be manufactured. be able to. In addition, by using the bolt 35 and the nut 36 as the fastening members, commercially available products that are easily available can be used, and it is possible to reduce the labor required for manufacturing.

According to the joint of the embodiment, the second
By projecting the small projections 17 at the corners of the bent pieces 15, the small projections 17 bite into the peripheral surface of the vertical pipe 21 and fit, so that the vertical pipe 21 can be held more reliably.

The above embodiment can be embodied with the following modifications. In the joint of the embodiment, as shown in FIG.
6 to form a recess 37 to be engaged with the peripheral surface.

With this configuration, the work of tightening the joint body 11 by the tightening member can be easily performed. In the joint of the embodiment, the notch 33 is omitted as shown in FIGS.

With such a configuration, substantially the same effects as those of the above-described embodiment can be obtained.
Can be further simplified. In the joint of the embodiment, the step portion 34 formed at the connection portion between the support portion 29 and the connection portion 31 is omitted,
Instead, the connecting portion between the holding portion 20 and the connecting portion 31 is cut to form the step portion 34.

Even in the case of such a configuration, the vertical pipe 2
1 and the horizontal pipe 30 can be connected and securely fastened and fixed. In the joint of the embodiment, the shape of the vertical pipe 21 or the horizontal pipe 30 is not limited to a square tube, and is, for example, a triangular tube, a hexagonal tube, an octagonal tube, a cylinder, an elliptic tube, or a triangular prism. , A rectangular column, a hexagonal column, an octagonal column, a columnar column, an elliptical columnar column, or the like. At this time, the holding unit 20
It is preferable that the support portion 29 is formed in a shape to be fitted to the peripheral surfaces of the vertical pipe 21 and the horizontal pipe 30.

With this configuration, the applicable range of the joint can be expanded. In the joint of the embodiment, the small protrusion 17 is not limited to the corner portion, but is formed only on the base end side of the second bent piece 15, formed on the entire holding portion 20, or formed on the support portion 29. It is also possible.

With this configuration, at least one of the vertical pipe 21 and the horizontal pipe 30 and the joint can be further firmly fixed. In the joint of the embodiment, the small protrusion 17 is omitted.

With such a configuration, the configuration can be further simplified, and the device can be easily manufactured. Further, technical ideas that can be grasped from the embodiment will be described below.

(1) The holding member according to claim 1 or 2, wherein the holding portion has a shape fitting with a vertical member or a horizontal member, and the supporting portion has a shape fitting with a vertical member or a horizontal member. Joint.

With this configuration, the vertical and horizontal members can be connected and fixed more firmly. (2) The joint according to any one of (1), (2), and (1), wherein a small projection is provided on an inner surface of at least one of the holding unit and the supporting unit.

With this configuration, slippage between the holding portion and the vertical member can be prevented, and a larger weight can be supported. (3) The joint according to any one of (1), (2), (1), and (2), wherein the connecting portion is provided with a recess for locking a fastening member.

With this configuration, the work of fastening the joint can be easily performed.

[0038]

As described above in detail, according to the present invention, the following effects can be obtained. According to the joint according to the first aspect of the present invention, the vertical member and the horizontal member can be connected to each other while maintaining strength, and can be securely fastened and fixed. can do.

According to the joint of the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the structure is simpler, the production can be further facilitated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a joint according to an embodiment.

FIG. 2 is an exploded view showing a material constituting the joint body of the embodiment.

FIG. 3 is an exemplary perspective view showing the joint in use according to the embodiment;

FIG. 4 is an exemplary plan view showing the operation of the joint according to the embodiment;

FIG. 5 is a development view showing a material constituting the joint main body other than the embodiment.

FIG. 6 is an exploded perspective view showing a joint other than the embodiment.

FIG. 7 is an expanded view showing a material constituting the joint main body other than the embodiment.

[Explanation of symbols]

11 Joint body, 20 Holding part, 21 Vertical pipe as vertical member, 26 Notch, 29 Support part, 30
A horizontal pipe as a horizontal member, 31 a connecting portion, 35 a bolt as a fastening member, 36 a nut as a fastening member.

Claims (2)

[Claims] A pair of joint bodies are formed by bending a metal plate, and the joint bodies are opposed to each other, and a vertical member and a horizontal member extending in a direction substantially orthogonal to the vertical member are held. A joint for connecting the vertical member and the horizontal member by tightening the portion with a tightening member, a holding portion for holding the vertical member from one side, and a support for supporting the horizontal member from one of upper and lower directions When each joint body is composed of a portion and a connecting portion that connects the holding portion and the supporting portion, and when the connecting portion is tightened by the tightening member,
A joint in which the holding portion or the support portion is deformed to engage and hold the vertical member or the horizontal member. 2. A notch is formed in a connecting portion between the holding portion and the connecting portion or a connecting portion between the supporting portion and the connecting portion.
Joint described in.