JP2003013919A - Structural member connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structural member connection device which has a simple structure and which can be easily fitted and has a high fitting strength. SOLUTION: The device is provided with connection pieces 20, 22 in which engaging pieces 16-19 which can be inserted in an arbitrary position of a T- groove 14 provided in the lengthwise structural members 10, 12 such as an aluminum extruded shape or the like and can be engaged with an arbitrary position of the T-shaped groove 14 are mutually disposed at a specified angle, and further, provided with a nut 26 positioned between the engaging pieces 16-19 of the connection pieces 20, 22, a nut holder 28 holding the nut 26 in between the engaging pieces 16-19, and a bolt 30 screwing with the nut 26 through the connection pieces 20, 22. Respective engaging pieces 16-19 are inserted in the T-grooves 14 of the respective separate structural members 10, 12 and the bolt 30 is screwed with the nut 26 to fasten them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structural material connecting device used for connecting long structural materials having T grooves in the longitudinal direction.

[0002]

2. Description of the Related Art Conventionally, in order to make a frame of a machine or structure by arbitrarily combining structural materials formed according to a predetermined standard,
A nut is attached to the T groove provided on the side surface of the structural material, and other members are fixed to the structural material by bolts using this nut. In particular, as shown in FIG. 8, when the structural materials 2 are connected at right angles, the L-shaped connecting material 4 having the bolt holes 3 on each side surface and the T-shaped groove 5 of the structural material 2 are inserted. It was fixedly connected using the nut 6. Connection method is T-slot 5
A nut 6 is inserted into the inside from the end surface of the structural material 2 and is positioned below the bolt hole 3 of the connecting material 4, the connecting material 4 and the structural material 2 are positioned, and the bolt 7 is inserted into the bolt hole 3 and the nut 6 is inserted. Was to be screwed.

[0003]

In the case of the above-mentioned prior art, there is a problem that the L-shaped connecting member 4 and the bolt 7 are exposed at the connecting portion and the appearance is not good, and the bolt 7 crosses 90 °. It was necessary to install them in the respective directions, which required a lot of man-hours and was troublesome to assemble.

Further, Japanese Patent Application Laid-Open No. 8-128 by the applicant of the present application
As disclosed in Japanese Laid-Open Patent Publication No. 421,421, there is also proposed a device that connects end faces of a structural material with a connecting member. But,
Since this member connects the end faces of the structural member to each other by the screw member and the connecting member, the fixing strength is weak and it cannot be used for a structure to which force is applied.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a structural material connecting device which has a simple structure, is easy to mount, and has high mounting strength.

[0006]

The present invention can be inserted into an arbitrary position of a groove portion such as a T groove provided in a long structural material such as an aluminum extruded shape member and is engaged in the T groove. A connecting piece in which possible engaging pieces are arranged at a predetermined angle such as a right angle to each other, a nut located between the engaging pieces of the connecting piece, and a nut holding portion holding the nut between the engaging pieces. And a bolt that is screwed into the nut via the connecting piece. Then, the engaging pieces are inserted into the T-grooves of different structural materials, and the bolts are screwed into the nuts so as to be tightened so that the engaging pieces become the engaging portions of the T-groove openings. Engage so as to be tightened, and connect and fix each structural material and the above-mentioned connecting piece.

The connecting pieces are arranged so as to face each other in a symmetrical shape divided by planes in the longitudinal direction and the depth direction of the T groove of the structural material, and the divided structural materials are put together. Then, the engaging pieces are narrower than the width of the opening of the T groove, and by tightening the bolt and the nut,
There is provided an expanding means for expanding each of the engaging pieces to the side edge of the opening of the T groove. The expansion / expansion means is formed between the engagement pieces of the respective connection pieces, and comprises an abutting inclined surface with which the tip portions of the bolts abut, and when the tip portions of the bolts are pushed in by the tightening of the bolts, the abutment surfaces are contacted. The inclined surfaces push the respective connecting pieces apart in a direction away from each other.

The connecting piece is provided in a holding member having a U-shaped cross section and a triangular outer shape. On the inner wall surface of the holding member, an abutting portion that abuts a side surface of each connecting piece is formed, and the abutting portion is formed in an inclined surface shape facing each other toward the T groove of the structural material. . In addition, the outer surface of each connecting piece is in contact with the abutting portion, and the T
The guide slopes are provided so as to face each other toward the groove. Then, by loosening the bolt of the connecting member and moving the holding member away from the structural member, the guide slope contacts the slope of the contact portion and is guided.
The respective connecting members move toward each other, and the width of each of the engaging pieces becomes narrower than the width of the opening of the T groove, so that the connecting member can be pulled out.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show a structural material connecting device according to an embodiment of the present invention. The structural material connecting device of this embodiment connects structural materials 10 and 12 such as aluminum extruded shapes at right angles. is there. Structural material 1
Nos. 0 and 12 each have a T groove 14 in the longitudinal direction of the side surface, and a wide portion 14b is formed inside the opening 14a of the T groove 14 in the same cross-sectional shape along the longitudinal direction.

In the structural material connecting device of this embodiment, the engaging pieces 16 and 17 engageable with the T-grooves 14 of the structural materials 10 and 12 are arranged in a positional relationship at right angles to each other and are integrally formed. It has a piece 20 and the other connecting piece 22 which is similarly formed and is arranged symmetrically facing each other. The connecting piece 22 also includes engaging pieces 18 and 19 arranged at right angles to each other. The engaging pieces 16, 18 of the connecting pieces 20, 22 facing each other
The engaging pieces 17 and 19 respectively project outward and project in opposite directions. Each engaging piece 1 of the connecting pieces 20 and 22
Insertion recesses 24 for the bolts 30 are formed between 6, 17, 18, and 19 at intermediate positions at 45 ° directions with respect to the engagement pieces 16, 17, 18, and 19, respectively. A nut holding portion 28, which is an opening portion for accommodating the square nut 26, is provided at an intermediate portion of the.

Each engaging piece 1 of the insertion recess 24 of the bolt 30
At the end portions in the vicinity of 6 and 18, contact slant surfaces 32, which are expansion means, with which the width of the insertion recess 24 is narrowed and the tip end portion of the bolt 30 abuts are formed. As shown in FIG. 1, with the engagement pieces 17 and 19 aligned and in contact with each other, the width of the bolt 30 is narrower than the width of the opening 14a of the T groove 14, and the bolt 30 and the nut 26 are tightened.
When the bolt 30 is screwed and tightened, the tip of the bolt 30 pushes the contact slope 32 sideways, and as shown in FIG.
The engagement pieces 17 and 18 are engaged with the side edge portions of the opening 14 a of the T groove 14.

The connecting pieces 20 and 22 are provided in a U-shaped hollow portion of a holding member 40 having a U-shaped cross section and an outer shape of a right angled isosceles triangle. At the center of the side surface 40a between the base sides of the isosceles triangular side surfaces of the holding member 40, the bolt 3
A through hole 46 for inserting 0 is formed toward the apex side of the isosceles triangle. The holding member 40 has the through hole 46.
A side surface 40a on which is formed and side surfaces 40b on both sides thereof,
It is formed in a hollow shape except for 40c.

Each side surface 40a, 40b, 4 of the holding member 40
The inner wall of the hollow portion surrounded by 0c is formed with two pairs of contact portions 42 and 44 that contact the side surfaces of the connecting pieces 20 and 22, respectively. Each T-slot 14
It is formed in a slope shape so that the side surfaces facing each other approach each other. Then, on the outer side surface of each end of each connecting piece 20 and 22, the structural member 1 is contacted with the contacting portions 42 and 44, respectively.
The guide slopes 34 and 36 are provided so as to face each other toward the T-grooves 0 and 12 toward each other. As a result, when the bolts 30 inserted into the connecting members 20 and 22 are loosened and the holding member 40 is pulled up so as to move away from the structural members 10 and 12, the guide slopes 34 and 36 contact the slopes of the contact portions 42 and 44. Guided in contact with each other, the connecting members 20, 22 move toward each other, and the engaging pieces 16, 17, 18, 19
Is narrower than the width of the opening 14a of the T-groove 14, and can be pulled out.

Next, a method of using the structural material fixing device will be described with reference to the drawings. First, the structural material 1 to be combined with each other
0 and 12 are installed at predetermined positions, and the end surface of the structural material 12 is brought into contact with the side surface of the structural material 10, for example. Then, as shown in FIG. 1, in a state where the nut 26 is inserted into the nut holding portion 28 of each of the connecting pieces 20 and 22, the connecting pieces 20 and 22 are inserted into the hollow portion of the holding member 40 to remove the holding member 40. Through hole 4
The bolt 30 is inserted through the screw 6, and the bolt 30 is slightly screwed into the nut 26. In this state, as shown in FIG. 1, the holding member 40 and the connecting members 20 and 22 are brought into contact with the intersecting side surfaces of the structural members 10 and 12, and the bolt 30 is further screwed.
Then, the contact slopes 32 of the connecting pieces 20, 22 are pushed laterally by the tip of the bolt 30, and the tightening of the bolt 30 causes the connecting pieces 20, 22 to move away from each other via the contact slopes 32. It can be spread. As a result, the structural members 10 and 12 are accurately positioned at right angles and connected.

Next, when disassembling the structural members 10 and 12 or disconnecting the connecting device from the structural members 10 and 12, the bolt 30 is loosened. Then, with the tip of the bolt 30 loosened to the extent that it separates from the contact slope 32, the holding member 40
When the holding member 40 is pulled apart from the structural members 10 and 12, the guide slopes 34 and 3 of the connecting members 20 and 22 are formed.
6 comes into contact with the slopes of the contact portions 42, 44 and is guided by its own weight so as to be positioned relatively downward, so that the connecting members 20, 2
2 move in a direction toward each other in the hollow portion of the holding member 40. Then, the width of each engaging piece 16, 17, 18, 19 becomes narrower than the width of the opening 14 a of the T groove 14, and the connecting member 2
0 and 22 can be pulled out from the T groove 14.

According to the structural material connecting device of this embodiment,
The structural members 10 and 12 can be reliably connected and fixed by one bolt 30. Further, it can be inserted into the T-groove 14 directly from the side information to the T-groove 14, and can be taken out from the side, and the connecting pieces 20 and 22 can be slid from the ends of the structural members 10 and 12. There is no need to insert it,
Easy to assemble and disassemble. Further, the periphery of the opening can be held and connected over a relatively long range in the T groove 14, and the strength is high.

The structural material fixing device of the present invention is not limited to the above-described embodiment, and the connecting member is not a divided structure, but the nut holding portion is formed as an integral structure, and the structural material is provided in the T groove. It may be inserted from the end.
In this case, since the engaging pieces are integrally engaged and connected in the T groove, the strength can be relatively high.

[0018]

The structural material connecting device of the present invention has a simple structure and can easily connect and fix structural materials with bolts. Further, the appearance can be improved. Further, by forming the connecting piece into a divided structure, it is possible to easily attach and detach the connecting piece, and further improve workability. Further, the connecting piece having the divided structure is provided with the guide slope, and the width of the connecting piece is naturally narrowed at the time of removal, so that the connecting piece can be easily pulled out from the T groove.

[Brief description of drawings]

FIG. 1 is a perspective view of a structural material connecting device according to an embodiment of the present invention.

FIG. 2 is a plan view of a holding member of this embodiment.

FIG. 3 is a front view of a holding member of this embodiment.

FIG. 4 is a right side view of the holding member of this embodiment.

FIG. 5 is a front view showing a use state of a connecting material of the structural material connecting device of the embodiment.

6 is a cross-sectional view taken along the line AA of FIG.

FIG. 7 is a right side view of the structural material connecting device of this embodiment in a used state.

FIG. 8 is a partially cutaway front view of a conventional structural material connecting device.

[Explanation of symbols]

10,12 Structural material 14 T-slot 14a opening 16, 17, 18, 19 Engaging pieces 20,22 connecting piece 26 nuts 28 Nut holder 30 volts 32 contact slope 34,36 Guide slope 40 holding member 42,44 contact part

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] May 27, 2002 (2002.5.2)
7)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

The connecting pieces are arranged to face each other in a symmetrical shape, which is divided by a surface in the longitudinal direction and the depth direction of the T groove of the structural material, and the divided connecting pieces are put together. The engaging pieces are narrower than the width of the opening of the T-groove, and by tightening the bolts and nuts, expansion means for expanding the engaging pieces to the side edge of the opening of the T-groove is provided. I have it. The expansion / expansion means is formed between the engagement pieces of the respective connection pieces, and comprises an abutting inclined surface with which the tip portions of the bolts abut, and when the tip portions of the bolts are pushed in by the tightening of the bolts, the abutment surfaces are contacted. The inclined surfaces push the respective connecting pieces apart in a direction away from each other.

[Procedure amendment]

[Submission date] August 26, 2002 (2002.8.2)
6)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yutaka Tsuda             7-8 Shimomoto-machi, Toyama City, Toyama Prefecture             Inside C-Autotech Co., Ltd. (72) Inventor Ryoichi Nomura             7-8 Shimomoto-machi, Toyama City, Toyama Prefecture             Inside C-Autotech Co., Ltd. F term (reference) 3J022 DA11 EA37 EB12 EC23 ED24                       FB04 FB06 FB13 GA07 GA14                       GB01                 3J039 AA08 BB02 GA06

Claims (4)

[Claims] 1. A connecting piece in which engaging pieces that can be inserted into an arbitrary position of a T-shaped groove provided in a long structural member and that can be engaged in the T-shaped groove are arranged at a predetermined angle with respect to each other. A nut located between the engaging pieces of the connecting piece, a nut holding portion holding the nut between the engaging pieces, and a bolt screwed to the nut via the connecting piece, The engaging pieces are inserted into the T-grooves of the respective different structural materials, and the bolts are screwed into the nuts so that the engaging pieces engage with the side edges of the T-groove opening portions. A structural material fixing device, characterized by connecting and fixing the above-mentioned connecting piece. 2. The connecting piece is divided in a plane in the longitudinal direction and the depth direction of the T-groove of the structural material, and is disposed so as to face each other in a symmetrical shape, and the divided structural materials are combined with each other. In this state, the engaging pieces are narrower than the width of the opening of the T groove, and the bolts and nuts are tightened to push the engaging pieces to the side edges of the opening of the T groove. The structural material connecting device according to claim 1, further comprising means. 3. The expanding and spreading means is formed between the engaging pieces of the connecting pieces, and comprises an abutting slope with which the tip of the bolt abuts. The tip of the bolt is tightened by tightening the bolt. 3. The structural material connecting device according to claim 2, wherein each of the connecting pieces is expanded by the contact slanted surface in a direction in which the connecting piece separates when pushed. 4. Each of the connecting pieces is housed in a holding member, and the holding member is formed with an abutting portion that abuts a side surface of each of the connecting pieces. The abutting portion is formed in the T groove of the structural member. Guide slopes are formed on the outer surfaces of the connecting pieces so as to come closer to each other toward the T-grooves of the structural member and contact the contact portions. The structural material coupling device according to claim 2 or 3, wherein the structural material coupling device is provided.