JP2003293464A - Joint for structural member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To linearly connect structural members and to connect the structural members to more outer peripheral walls 10a-10e of a joint 1A formed as a hollow structure body provided with one open part 15 and pairs of outer peripheral walls 10b-10e abutting on the connected side end face of the structural members with recessed grooves formed at the side faces, and formed with through holes 13b-13e allowing the insertion of clamp screws, and screwing the clamp screws from the through holes 13b-13e to connect the structural members. <P>SOLUTION: The paired outer peripheral walls 10b-10e formed with the through holes 13b-13e are formed with aperture parts 14 independent of the through holes 13b-13e and communicating with the recessed grooves of the structural members in the abutting state while allowing the insertion of a tool for fastening the clamp screws inserted through the through holes 13b-13e. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for connecting columnar structural members each having a groove formed on each side surface along the longitudinal direction, and the structural members can be connected to all outer peripheral walls of the joint. Technology.

[0002]

2. Description of the Related Art When a plurality of columnar structural materials are connected to each other to manufacture a storage shelf, a workbench, and an outer frame of various structures,
A prismatic joint that is arranged between the end faces of the two or three structural members on the coupling side and couples the structural members to each other is used.

As an example of such a joint, FIG.
As shown in FIG. 1, a cubic joint 1 that vertically connects three structural materials is known.

The joint 1 of this example has six square outer peripheral walls 10a to 10f having the same shape as the end face 20 on the joining side of the aluminum mold members 2 and 2 which are structural members to be joined together.
Is a cube made of aluminum and has one outer peripheral wall 10b, 10c, 10f of a pair of outer peripheral walls facing each other.
Has a large-diameter hole 12 through which the head 31 and the screw portion 30 of the tightening screw 3 for connecting the aluminum mold member 2 and the joint 1 can be inserted, and the other outer peripheral walls 10a, 10d,
A small diameter hole 11 for inserting only the screw portion 30 of the tightening screw 3 is formed in 10e.

9 and 10 show a leg portion of a guide rail for a shutter manufactured by using this joint 1. As shown in FIG. In order to stably arrange the guide rail, a disk-shaped leg member 9 is screwed into the large diameter hole 12 of the outer peripheral wall 10f on the mounting surface side.

The aluminum mold member 2 is a square columnar body having a square cross section in which concave grooves 4 are formed on each side surface along the longitudinal direction, and cylindrical hollow portions 21 and 41 are formed at the center and four corners in the longitudinal direction. Are formed along each. A screw groove into which the tightening screw 3 is screwed is formed in the mouth 22 of the cylindrical hollow portion 21 which is open to the end face 20 on the coupling side.

The joint 1 and the aluminum mold member 2,
2 is an outer peripheral wall 10a, 1 in which the small diameter hole 11 is formed.
0d and 10e are in contact with the coupling-side end surface 20, the tightening screw 3 is inserted through the large diameter hole 12 of the outer peripheral wall 10b, 10c, and 10f facing the coupling side end surface 20, and the mouth portion 22 is formed.
And then the tightening screw 3 from the large diameter hole 12
Are connected by inserting a tool for tightening and tightening the tightening screw 32. After repeating this joining operation three times, by screwing the leg member 9 to the outer peripheral wall 10f, the three aluminum mold members 2 and 2 can be joined to the joint 1 as shown in FIG. it can.

[0008]

However, in this one, since the tightening screw 32 and the large diameter hole 12 for inserting the tool are formed in one outer peripheral wall 10b, 10c, 10f, the other outer peripheral wall is formed. 10a, 10d, 10e like the aluminum screw 2 by the tightening screw 32
Cannot be joined to the outer peripheral walls 10a, 10d, 10e of the other aluminum wall 2a by being joined together.
When the outer peripheral wall is closed by the joint-side end surface 20, the aluminum mold member 2 cannot be joined to the outer peripheral walls 10b, 10c, 10f. Therefore, in the joint 1 of this example, the aluminum mold members 2 and 2 cannot be linearly joined to the pair of opposing outer peripheral walls. Further, despite having the six outer peripheral walls 10a to 10f having the same shape as the joint side end face 20, only at most three aluminum mold members 2 and 2 can be joined.

The present invention has been made in view of the above circumstances, and is a "joint for connecting columnar structural materials having concave grooves formed on their side surfaces along the longitudinal direction,
A hollow structure having at least a pair of outer peripheral walls, each of which is abutted against the end surface of the structural material to be connected, and through which a screw portion of a tightening screw can be inserted, and an open portion. In the state where the outer peripheral wall in which the through hole is formed and the coupling-side end surface are in contact with each other, the tightening screw is screwed into the screw hole formed in the coupling-side end surface from the through hole. In a joint of structural materials for fixing the contact state, it is an object to be able to connect the structural materials in a straight line and to connect the structural materials to more outer peripheral walls.

[0010]

[Means for Solving the Problems] * 1 The technical means of the present invention for solving the above-mentioned problems is that "each of the pair of outer peripheral walls in which the through hole is formed is inserted into the through hole. A tool for tightening the tightened tightening screw can be inserted, and a window portion that communicates with the concave groove of the structural member and is independent of the through hole is formed in the contact state ". It is a thing.

According to this, the outer peripheral wall in which the through hole is formed and the connecting side end surface of the structural member are brought into contact with each other so that the screw hole and the through hole communicate with each other, and the tightening screw is attached from the open portion. A tool for tightening the tightening screw from a window portion formed in an outer peripheral wall facing the outer peripheral wall in the contact state after inserting the tool into the joint and inserting the screw hole and the through hole in the communicating state into the joint The outer peripheral wall and the end face on the joint side can be joined by inserting into the inside and tightening the fastening screw.

In this case, since the window portion communicates with the concave groove of the structural material, by inserting the tool along the concave groove, the window portion of the outer peripheral wall to which the structural material is already joined is connected to the concave portion. The tool can be inserted into the joint.
Further, since the through hole and the window are formed independently, the outer peripheral wall and the coupling-side end surface are positioned by the tightening screw inserted in the through hole.

* In paragraph 1 of paragraph 2, "the joint is formed in a rectangular parallelepiped shape as a whole, the through hole is formed in the outer peripheral wall facing the open portion, and the through hole is formed in the other outer peripheral walls. And the window portion is formed ”, in the outer peripheral wall in which both the window portion and the through hole are formed,
The structural material can be bonded in the same manner as in item 1.
On the other hand, on the outer peripheral wall where only the through hole is formed, after abutting the coupling side end face of the structural material, a tool is inserted from the open portion and the tightening screw inserted into the through hole is tightened. The contact state can be fixed. As a result, the structural material can be bonded to all of the five outer peripheral walls forming the joint.

* 3 In the item 1 or 2, "the window portion is formed over two outer peripheral walls so as to be able to communicate with the concave groove of the structural material connected to the adjacent outer peripheral walls". With the above feature, since the window portion is continuously formed on two adjacent outer peripheral walls, the degree of freedom of the tool inserted into the window portion is increased. Therefore, the work of tightening the tightening screw with the tool is easy.

[0015]

The present invention having the above-mentioned structure has the following unique effects. The joint of the present invention can be tightened by tightening the tightening screw by inserting a tool from the window portion of the outer peripheral wall at a position facing the outer peripheral wall that is brought into contact with the coupling-side end face of the structural material, Since it is possible to insert the tool from the window of the outer peripheral wall that is connected,
A structural material may be coupled to each of the pair of opposing outer peripheral walls having the through hole and the window formed therein. As a result, the structural material can be linearly coupled to the joint. Also, the work of joining the structural materials is easy.

Further, since the outer peripheral wall and the end face on the joint side are positioned by the tightening screw inserted through the through hole, the joint and the structural member can be joined without any displacement or inclination.

Further, according to the item (2), since the structural material can be coupled to all of the five outer peripheral walls forming the rectangular parallelepiped joint, three structural materials can be connected to the six outer peripheral walls. It is possible to connect the structural material to more peripheral walls than in the conventional example in which only the connection is possible.

According to the third aspect, since the window for inserting the tool is continuously formed on the two outer peripheral walls, the degree of freedom of the tool is increased, so that the tightening work of the tightening screw can be performed easily. It's easy.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. (Embodiment 1) FIG. 1 shows a joint of a structural material which is an example of an embodiment of the present invention, a structural material which is joined by this joint, and a joint mode of the joint and the structural material.
~ Shown in FIG.

The structural joint 1A of this example is shown in FIG.
As shown in FIG. 5, five outer peripheral walls 10a to 10e having the same square as the joint side end surface 20 of the aluminum mold members 2 and 2, which are structural members to be joined together, and the outer peripheral wall 10a.
10e to 10e and an open portion 15 having the same shape, which is a hollow aluminum cube, and each of the outer peripheral walls 10a to 1
0e is a window through which a through hole 13a to 13e for inserting a tightening screw 3 for connecting it to the connecting side end surface 20 of the aluminum mold member 2, 2 and a tool 6 for tightening the tightening screw 3 can be inserted. And a part 14 are formed.

As shown in FIGS. 2 and 3, the aluminum mold member 2 is a prism having a square cross section, and each side surface has a concave groove 4 having a U-shaped cross section along the longitudinal direction.
4 are formed, and hollow portions 21 and 41 are formed in the center and the four corners along the longitudinal direction. A screw groove that is screwed into the tightening screw 3 is formed in the mouth portion 22 of the cylindrical hollow portion 21 that opens to the coupling side end surface 20.

In this example, the groove width of the concave groove 4 of the aluminum mold member 2 is set so that the joint 1A
In order to secure the degree of freedom of the tool 6 inserted therein, the size is set to be 1.5 to 2 times the screw diameter of the tightening screw 3.

* Joint 1A The joint 1A in this example has all the outer peripheral walls 10a to 1a.
0e are respectively formed with through holes 13a to 13e communicating with the mouth 22 of the hollow portion 21 of the joining side end face 20 of the aluminum mold member 2, and four outer peripheries other than the outer peripheral wall 10a facing the open portion 15 are formed. A window portion 14 into which the tool 6 for tightening the tightening screw 3 can be inserted is formed in each of the walls 10b to 10e.

As shown in FIGS. 1 and 3, the window portion 14 includes not only the concave groove 4 of the aluminum mold member 2 coupled to the outer peripheral walls 10b to 10e but also the outer peripheral wall 10b.
The outer peripheral walls 10b to 10e and the outer peripheral wall 10a are continuously formed so as to be able to communicate with the concave groove 4 of the aluminum mold member 2 coupled to the outer peripheral wall 10a adjacent to the outer peripheral walls 10a to 10e. . In this example, the two outer peripheral walls 10 are arranged so that the angle of the tool 6 can be easily adjusted.
a, 10b to 10e are set to have the same width,
The length of the window 14 in the groove width direction of the concave groove 4 is set to be the same as the groove width of the concave groove 4.

As shown in FIG. 1, the outer peripheral walls 10b to 10e of the window portion 14 are formed in a rectangular shape similar to the concave groove 4, and as shown in FIG. 3, the concave groove is formed. Four
The length of the groove in the groove depth direction is set to be larger than the groove depth H.

On the other hand, the outer peripheral wall 10a side of the window portion 14 is, as shown in FIG. 1, the outer peripheral walls 14b to 14e.
The rod-shaped tool 6 inserted from the window portion 14 is formed in a U shape so that it can be easily rotated. As shown in FIG. 3, the length of the concave groove 4 in the groove depth direction is the groove depth. It is set to be smaller than H.

* Method of connecting the joint and the aluminum mold member Next, a method of connecting the outer peripheral walls 10a to 10e of the joint 1A and the aluminum mold member 2 will be described. A case where the aluminum mold member 2 is joined to the outer peripheral walls 10b to 10e in which both the through holes 13b to 13e and the window portion 14 are formed will be described by taking an example of joining to the outer peripheral wall 10c shown in FIG.

First, after the outer peripheral wall 10c and the end face 20 on the joining side of the aluminum mold member 2 are brought into contact with each other to bring the front opening 22 and the through hole 13c into communication with each other, the tightening screw 3 is jointed from the open portion 15. 1A is inserted into the through hole 13 and the mouth portion 22 which are in communication with each other. Next, as shown in FIG. 4, the tool (hexagon bar ball wrench) is inserted through the window portion 14 formed in the outer peripheral wall 10e at a position facing the outer peripheral wall 10c, and The tool 6 is rotated to screw the tightening screw 3 into the mouth portion 22. As a result, the contact state between the outer peripheral wall 10c and the coupling side end surface 20 is fixed, and the joint 1A is fixed.
And the aluminum mold member 2 are bonded. Here, after the tightening screw 3 is tightened by the tool 6, another tool such as a hexagonal wrench is inserted from the opening portion 15 and the tightening screw 3 is tightened again, so that the aluminum mold member 2 is more reliably joined. be able to.

Further, as shown in FIG. 4, when the aluminum mold member 2 is already joined to the outer peripheral wall 10e facing the outer peripheral wall 10c, the groove 4 of the aluminum mold member 2 is formed along the groove. Window portion 14 of the outer peripheral wall 10e
Insert the tool 6 from the aluminum mold member 2
The tightening screw 3 can be tightened in the same manner as when the screws are not connected. Also, as shown in FIG.
Even when the aluminum profile 2 is bonded to the peripheral walls 10a and 10d in addition to the peripheral wall 10e, the aluminum profile 2 can be bonded in the same manner.

Next, the outer peripheral wall 1 facing the open portion 15
The case where the aluminum mold member 2 is bonded to 0a will be described. In this case, as in the case described above, after the outer peripheral wall 10a and the coupling-side end surface 20 are brought into contact with each other, the tightening screw 3 is inserted from the open portion 15 and the through hole 1 in the communicating state is formed.
3a and the mouth portion 22, and the tool 6 is inserted from the opening portion 15 which is wide open, and the tightening screw 3 is tightened, thereby fixing the contact state and fixing the outer peripheral wall 1
The aluminum profile 2 can be bonded to 0a.

By repeating the above-mentioned joining work to join the aluminum mold members 2 and 2 to the five outer peripheral walls 10a to 10e, respectively, as shown in FIGS. 2 and 3, five aluminum pieces are attached to the joint 1A. Template 2,
Two can be combined.

Due to such a constitution, the joint 1A of this example, as shown in FIG. 4, for example, linearly connects the aluminum mold members 2 and 2 to a pair of opposing outer peripheral walls 10c and 10e of the joint 1A. The aluminum mold members 2 and 2 can be bonded to all of the five outer peripheral walls 10a to 10e constituting the joint 1A.

Further, a plurality of aluminum mold members 2 and 2
Even when joining the two, the first aluminum mold member 2
Since they can be joined by the same method as above, the work of joining the aluminum profile 2 to the joint 1A is easy.

The through holes 13a to 13e and the window portion 1 are also provided.
4 are formed independently of each other, the outer peripheral wall 10a ...
10e and the joint side end surface 20 are positioned. Therefore, the joint 1A and the aluminum mold member 2 are coupled to each other without displacement or inclination.

In the joint 1A of this example, the window portions 14 formed on the outer peripheral walls 10b to 10e are continuously formed over the adjacent outer peripheral wall 10a.
The degree of freedom of the tool 6 inserted in the tool 4 is large, and the inclination angle of the tool 6 can be adjusted according to the degree of screwing of the tightening screw 3 as shown by the broken line in FIG. Further, since the window portion 14 has a length in the groove depth direction on the outer peripheral walls 10b to 10e side set to be larger than the groove depth H of the recessed groove 4, the tool 6 is placed in the window portion 14. Since the peripheral portion of the window portion 14 does not contact the tool 6 when the tool 6 is obliquely inserted, the tool 6 can be inserted smoothly and the tool 6 can be inserted at a smaller inclination angle. Further, since the concave groove 4 of the aluminum mold member 2 and the window portion 14 have the same shape and are set to be 1.5 times to 2 times the screw diameter of the tightening screw 3, the window portion 14 is formed. There is a high degree of freedom of the tool 6 inserted in the. From these, the tightening of the tightening screw 3 by the tool 6 is easy.

Further, in the case of this example, after the joining work is completed, as shown in FIGS.
Since the cap 5 made of synthetic resin is covered with the above, dust and dirt components can be prevented from entering the inside of the joint 1A, and the appearance of the joint portion between the joint 1A and the aluminum mold member 2 is good.

Other Embodiments (Embodiment 2) FIG. 5 shows a hollow cubic joint 1B having the same configuration as that of the above-described Embodiment 1 except for the shape of the window portion 14. There is. Further, the method of joining the aluminum mold member 2 to the outer peripheral walls 10a to 10e and the aluminum mold member 2 are also the same as those in the first embodiment.

The window portion 14 of the joint 1B in this example has the outer peripheral walls 10b to 10e similarly to the joint 1A.
The outer peripheral walls 10b to 10e and the outer peripheral wall 10a so as to communicate with both the concave groove 4 connected to the outer peripheral wall 10a and the concave groove 4 of the aluminum mold member 2 connected to the outer peripheral wall 10a adjacent thereto.
Are continuously formed over two surfaces. The window portion 14 includes the outer peripheral walls 10b to 10e and the outer peripheral wall 10 respectively.
Both sides of a are formed in the same rectangular shape as the groove 4 and having the same width. Then, as shown in FIG. 5, in the rectangular portions of the respective outer peripheral walls 10b to 10e, 10a, the length of the concave groove 4 in the groove depth direction is set to be larger than the groove depth H. There is.

Due to such a structure, as shown in FIG. 5, the outer peripheral wall 10 adjacent to the joint 1B is adjacent.
a groove 4 of the aluminum mold member 2 joined to a, 10e
When the rectangular synthetic resin plate 7 or the like is held in a manner of being fitted in the connector 4, the window portion 14 serves as a relief portion for the synthetic resin plate 7, and the corner portion of the synthetic resin plate 7 is connected to the joint 1
It can be housed in B. Therefore, it is not necessary to perform processing such as cutting the corner portions of the synthetic resin plate 7 according to the shape of the joint 1B.

(Third Embodiment) FIG. 6 shows each outer peripheral wall 10b.
10e to 10e so as to communicate with the opening 15
4 shows a hollow cube-shaped joint 1C forming part 4. Further, the aluminum mold member 2 joined by this has the same structure as that of the first embodiment.

Similar to the joints 1A and 1B described above, the joint 1C of this example has five outer peripheral walls 10a to 10e each having a through hole 13a to 13e through which the tightening screw 3 is inserted, and the outer periphery. The wall 10a to 10e is composed of an opening 15 having the same shape, and the outer peripheral walls 10b to 10e other than the outer peripheral wall 10a facing the opening 15 have a window portion communicating with the recessed groove 4 of the aluminum mold member 2. 1
4 are formed. The window portion 14 has the same rectangular shape and the same width as the recessed groove 4 on the open portion 15 side of the aluminum mold member 2, and is formed so as to communicate with the open portion 15.

Due to such a structure, the outer peripheral wall 1
Inserting the tool 6 from the window portion 14 of 0e and facing the outer peripheral wall 1
When tightening the tightening screw 3 inserted into the 0c through hole 13c, the degree of freedom of the tool 6 becomes larger than that of the joints 1A and 1B described above, so that the tightening work of the tightening screw 3 is easy. is there.

(Fourth Embodiment) FIG. 7 shows an outer peripheral wall 10b.
The hollow cubic joint 1D formed so that the window parts 14b-14e of 10e may be mutually connected is shown. Also, the aluminum mold member 2 joined by this
Has the same configuration as that of the first embodiment.

Like the joints 1A to 1C described above, the joint 1D of this example has five outer peripheral walls 10a to 10e each having a through hole 13a to 13e through which the tightening screw 3 is inserted, and the outer periphery. The wall 10a to 10e is composed of an opening 15 having the same shape, and the outer peripheral walls 10b to 10e other than the outer peripheral wall 10a facing the opening 15 have a window portion communicating with the recessed groove 4 of the aluminum mold member 2. 1
4b to 14e are formed.

In this example, the adjacent outer peripheral wall 10b is
The windows 14b and 14c formed on the outer peripheral wall 10c are formed so as to communicate with each other, as shown in FIG. Further, although not shown here, the outer peripheral wall 10
Similarly, the window portions 14d and 14e of the outer peripheral wall 10e are formed so as to communicate with each other.

Due to such a constitution, the window portion 14 formed in the joint 1D of this example has only two places as a whole, and the labor required for manufacturing the joint 1D as compared with the first to third embodiments described above. Less is. Also, the window 1
Since 4 is formed continuously over two surfaces like the joints 1A to 1C described above, the degree of freedom of the tool 6 is great and the tightening work of the tightening screw 3 is easy.

* Others The joint of the structural material of the present invention is not limited to the above-mentioned examples. In the above example, each outer peripheral wall 1
Although one window portion 14 is formed in each of 0b to 10e, a plurality of window portions 14 may be formed.

[Brief description of drawings]

FIG. 1 is a perspective view of a joint of structural materials according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a combined state of a joint and a structural material.

FIG. 3 is a cross-sectional view showing a combined state of a joint and a structural material.

FIG. 4 is an explanatory diagram showing a method of connecting a joint and a structural material.

FIG. 5 is an explanatory view showing a usage state of a joint of a structural material according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a joint of a structural material according to another embodiment of the present invention.

FIG. 7 is a perspective view showing a joint of a structural material according to another embodiment of the present invention.

FIG. 8 is a perspective view showing a conventional joint.

FIG. 9 is a perspective view showing a combined state of a conventional joint and an aluminum mold member.

10 is a sectional view taken along line XX of FIG.

[Explanation of symbols]

(1) (1A) (1B) (1C) ・ ・ ・ Joint (10a) (10b) (10c) (10d) (10e) (10f) ・ ・ ・ Outer peripheral wall (11) ... Small diameter hole (12) ... Large diameter hole (13a) (13b) (13c) (13d) (13e) ... through hole (14) ・ ・ ・ Window (15) ・ ・ ・ Open section (2) ・ ・ ・ Aluminum material (20) ... End face on coupling side (21) ・ ・ ・ Hollow part (22) ・ ・ ・ Mouth (3) ・ ・ ・ Tightening screw (4) ・ ・ ・ Concave groove (5) ・ ・ ・ Cap (6) ・ ・ ・ Tool (7) ・ ・ ・ Synthetic resin plate

Claims (3)

[Claims] 1. A joint for connecting columnar structural members, each of which has a groove formed on a side surface in the longitudinal direction, and which are individually abutted and tightened on the end faces of the structural members to be connected. A hollow structure having at least a pair of outer peripheral walls having a through hole capable of inserting a threaded portion of a screw and one open portion, the outer peripheral wall having the through hole formed and the coupling side end surface. In the joint of the structural member for fixing the contact state by screwing the tightening screw into the screw hole formed in the coupling side end surface from the through hole, the through hole is formed. A tool for tightening the tightening screw inserted in the through hole can be inserted into each of the pair of outer peripheral walls, and the through hole communicates with the groove of the structural member in the contact state. And an independent window is formed Characterized in that there, the joint of the structural material. 2. The joint of the structural material according to claim 1, wherein the joint is formed in a rectangular parallelepiped shape as a whole, and the through hole is formed in an outer peripheral wall facing the opening, and the other outer periphery is formed. A joint of structural materials, wherein the through hole and the window are formed in a wall. 3. The joint of the structural material according to claim 1, wherein the window portion is formed over two outer peripheral walls so as to be able to communicate with a groove of the structural material that is joined to an adjacent outer peripheral wall. A joint of structural materials, which is characterized by being