JPH10102581A - Strut and structural member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trussed mullion capable of adjusting the length of a strut connecting parallel stanchions and capable of connecting the stanchions with no twist or no rattle. SOLUTION: This strut is constituted of joints 7 (7a, 7b), an adjusting member 8, a stud bolt 9, and a rod body 5. The joints 7 (7a, 7b) are vertically rotatably fitted to the receiving materials 6 (6a, 6b) fixed to stanchions 3 (3a, 3b). One male screw section of the stud bolt 9 is screwed to the female screw section 10a of the rod body 5. The male screw section of the adjusting member 8 is screwed to the female screw section of the joint 7a, and the other male screw section of the stud bolt 9 is screwed to the female screw section of the adjusting member 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strut used for a brace, a bundle, a plane truss structure, and a three-dimensional truss structure.

[0002]

2. Description of the Related Art For example, in a stairwell, a high wall surface of a curtain wall system is sometimes supported by an upright pillar on the indoor side. If this pillar is made of one type of steel material, it becomes thick and heavy, and the atmosphere of the hall becomes heavy and heavy when viewed from the inside of the hole.However, if it is a truss marion, which is a flat truss structure combining thin steel materials, Can be configured to feel. In addition, a space truss structure is often used as a large-area lightweight roof structure having no support inside.

[0003] Such a flat truss structure and a space truss structure are formed such that struts form oblique triangles between two steel members (long members) arranged in parallel or between a plurality of node members arranged in a space. Although they are combined into a single structural member, they are often assembled on site for transport reasons. However, in the conventional strut, a joint p for connecting to a long material or a node member is directly bolted to the rod q with a bolt r (FIG. 6), or a long female screw rod s inserted into the rod is attached to a bolt r. (FIG. 7), and the length cannot be adjusted originally.

In the structure shown in FIG. 6, a slight adjustment can be forcibly performed by adjusting the tightening amount of the bolt r. However, particularly when the rod q is formed of a relatively soft material such as an aluminum alloy, if the screwed portion is repeatedly rotated for adjustment at the time of assembling, the rod q is likely to be loosened. It is not preferable from the viewpoint of maintaining strength. In the configuration of FIG. 7, if a steel material is used for the female screw rod s, the problem on the material can be solved. However, this structure does not allow any length adjustment. The strut may be used alone as a brace or a bundle, and in such a case, the length must be adjusted on site.

[0005] On the other hand, in assembling on site, the assembling work may be very difficult due to slight processing errors and assembling errors in the length direction of the struts. If this is forcibly assembled, the truss structure member is twisted or the connection portion is easily broken, leaving internal stress in the long member, the strut, the node member, or the connecting portion of these members, thereby easily causing troubles.

Japanese Patent Application Laid-Open No. 57-108345 discloses a structure in which a joint body (node member) and a rod are connected by bolts as a concentrated joint for a space truss, and a joint body having a large-pitch female screw is provided. And a rod having a female screw of a small pitch are connected by a bolt having a male screw matching the female screw of the rod and a male screw matching the female screw of the joint body. However, this concentrated joint is provided with a sleeve that is fitted to a bolt, and is fixed with the joint body and the rod sandwiching the sleeve. The distance between the joint bodies, that is, the length of the rod is adjusted. It is not possible.

[0007]

SUMMARY OF THE INVENTION The present invention provides a strut whose length can be adjusted without imposing a special load on the rod side, and a flat truss structure and a three-dimensional truss structure using the same. Providing is an issue.

[0008]

According to another aspect of the present invention, there is provided a structure in which a plurality of supporting columns are connected by a lattice member. The column supports the curtain wall that constitutes the outer wall of the atrium, on the indoor side, and is formed of extruded aluminum alloy, etc.
It is often a beautiful shape and finish such as a columnar shape.

A joint, an adjusting member, a stud, and a rod are arranged along one central axis, and these are integrated into a strut by screw connection. The joint is a member that connects the adjusting member with the receiving member attached to the long member or the node member connected by the strut. One end has a connecting portion with the receiving member, and the other end has a cylindrical shape that receives the male screw portion of the adjusting member. Female thread. The connecting portion is often forked so that the receiving portion of the receiving material can be sandwiched from both sides.

The adjusting member has a through hole along the central axis, one end of the outer surface is a male screw portion, the other end is an operation portion, and the inner surface of the through hole is a female screw portion. The pitch of the male thread is greater than the pitch of the female thread and the direction of the threads is the same. The stud has an operating part in the center,
The male screw part protrudes on both sides. The male screw at one end is for screwing with the female screw of the adjusting bolt, and the male screw at the other end is for screwing with a female screw provided at the end of the rod. The pitch between the external threads on both sides and the direction of the threads may be the same or different. The rod is made of an extruded aluminum alloy and has an axial internal thread at least at one end. Most are cylindrical, but sometimes solid.

All of the receiving member, the joint, the adjusting member, the stud bolt and the rod attached to the long member or the node member may be formed of an aluminum alloy, and the outer shape of the female screw portion of the joint, the operation of the adjusting member and the stud bolt may be used. The outer shape of the part may be made to match the outer shape of the rod, and the strut made of these members may be made to have an appearance made of a single rod as a whole. That is, the members are unified so that the outer shape of the members is a single strut. In this manner, the strut has decorativeness, and is suitable for use as, for example, a truss marion component for supporting a curtain wall of a hall indoors.

The strut is mounted by screwing one male screw of a stud into the end of the rod, further screwing the female screw of the adjusting member to another male screw, and screwing the female screw part of the joint to the male screw of the adjusting member. And assemble. That is, at least at one end of the rod, one of the male threads of the stud is screwed into the female thread of the rod, and the stud is attached to the rod, and the male thread of the adjusting member is screwed into the female thread of the joint, A structure is provided in which the other male thread of the stud is screwed into the female thread of the adjusting member.

The struts are used as follows. By turning the adjusting member, the entire length of the strut is made to substantially correspond to the distance between the receiving members (fixed to the long member and the node member) to be attached. One end of the strut is attached to one receiving member via a joint, and the other end is similarly attached to the other receiving member. When attaching the other end, the adjusting member is rotated so that the joint of the joint and the receiving member almost completely coincides with each other. By rotating the adjusting member to adjust the length of the strut, the play between the both end connecting portions of the strut and the both-side receiving members is eliminated.

When the adjusting member is turned, the external thread portion on the outer surface is screwed into the female thread portion of the joint, and at the same time, the female thread portion comes off from the stud (when the thread direction is the same for all the thread portions). However, since the pitch of the male thread is larger than the pitch of the female thread, the length of the lattice member is reduced by the difference. The length of the adjustable length is mainly determined by the length of the external thread on the outer surface of the adjusting member. The directions of the threads of the male and female threads of the adjustment member may be different. In this case, when the adjusting member is rotated, the length of the strut expands and contracts by the sum of the pitch of the male screw portion and the pitch of the female screw portion.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 shows a daylighting wall at a place where the first and second floors are atrium, and a large number of curtain wall panels 2 are supported by a truss mullion 1 disposed indoors. As shown also in FIG. 4, the truss mullion 1 is a planar truss structure in which two parallel columns 3 (a, b) are connected so as to form an oblique triangle with struts 4, and a curtain is attached to the column 3a on the outdoor side. The wall is attached.

The pillars 3 (a, b) are extruded members (long members) having a circular cross section made of aluminum alloy and having a diameter of 75 mm, the height of the outdoor pillar 3a is 8050 mm, and the lower end of the indoor pillar 3b is a floor. Because it does not reach the surface, it is shorter than the outdoor support. The spacing between the parallel columns (axial distance) is 370 mm, and the total length of the strut 4 is 480 mm, which can expand and contract by ± 10 mm. The apex angle of the isosceles triangle formed by the strut 4 in the assembled state is 86 °.

The support 3 (a, b) has a receiving material 6
(A, b) is fixed (FIGS. 1, 5). That is,
The receiving member 6 (a, b) is a fitting portion 1 to the support 3 (a, b).
1 (a, b) and a flat plate receiving portion 12 (a, b) integrally provided, and a fitting portion 11 (a, b) is formed in a mounting column 13 (a, b) in a mounting groove 13 (a, b). And the receiving portion 12 (a, b) is directed inward between the columns 3 (a, b), at a fixed interval (714 mm), and horizontally between the outdoor column 3a and the indoor column 3b. It is fixed so that the arrangement of the directions is alternated.

The strut 4 is connected to the rod 5 and the joint 7 on the outdoor side.
a, comprising an adjusting member 8 and a stud 9 (FIG. 2);
In this embodiment, the rod 5 is provided with the male screw 1 on the indoor side.
0b is integrally provided, and another joint 7b is screwed thereto (FIG. 1). These members are arranged along one central axis Y as the strut 4. The rod 5 is an extruded aluminum alloy material having a circular cross section with a diameter of 75 mm, and has a through hole along the central axis Y.
The female screw 10a is provided at one end (outside end in the drawing) and the male screw 10b is provided at the indoor end.

The outdoor joint 7a has a fork 14a on the outdoor side and a cylindrical part 15a on the indoor side.
A female screw 16 is provided on the inner surface of a. The diameter of the cylindrical portion 15a is 75 mm. The fork part 14a and the receiving part 12a of the receiving material 6a are provided with through holes 18a and 19a for inserting the connecting pin 17a.

The adjustment member 8 is a member having a circular outer shape in cross section and has a through hole along the central axis Y. The outdoor side of the outer surface is formed in the male screw portion 20 (M24), and the indoor side is formed in the operation portion 21. And a female screw 22 (M12) is provided on the inner surface of the through hole. The outer diameter of the operation unit 21 is 75 mm. The screw directions of the male screw part 20 and the female screw 22 are the same,
Has a larger pitch than the female screw 22. Note that the male screw portion 20 of the adjusting member 8 is screwed into the female screw 16 of the joint 7a.

The stud 9 has an operating portion 23 at the center and male screws 24 (a, b) (both M12) projecting from both sides. The screw directions of these male screws 24 (a, b) are the same, and the pitches are also equal. The outer diameter of the operation unit 23 is 75 mm. The indoor joint 7b includes a fork portion 14b and a cylindrical portion 15b, and a female screw 25 is provided on the cylindrical portion 15b. The female screw 25 is a male screw 1 provided at the indoor end of the rod 5.
0b. Also, fork portion 14b and receiving material 6b
The receiving portion 12b is provided with through holes 18b and 19b for inserting the coupling pin 17b. Cylindrical part 15b
Has a diameter of 75 mm.

The truss marion 1 is assembled as follows. The receiving members 6 (a, b) are fixed to the columns 3 (a, b), respectively. One male screw 24b of the stud 9 is screwed into the female screw 10a at the outdoor end of the rod 5, and attached.
Further, the female screw 22 of the adjusting member 8 is screwed to the other male screw 24 a of the stud 9, and the male screw portion 20 of the adjusting member 8 is screwed.
Female screw 16 of the joint 7a on the outdoor side. Then, the joint 7b on the indoor side is screwed into the male screw 10b on the indoor side of the rod 5, and the strut 4 is assembled.

The assembled struts 4 are connected to the indoor and outdoor struts 3.
(A, b), the fork part 1 of the indoor joint 7b
4b is connected to the receiving portion 12b of the receiving member 6b with the pin 17b, and then the outdoor joint 7a is connected to the receiving portion 12b of the outdoor support 3a.
a through hole 1 for inserting the pin 17a
The adjustment member 8 is rotated and adjusted so that 8a and 19a coincide. Then, the joint 7a and the receiving portion 12a are
And the strut 4 is connected between the columns 3 (a, b). Finally, the adjusting member 8 is rotated to pull the strut 4 slightly, so that both sides of the strut 4 and the strut 3
The play between (a, b) is absorbed to eliminate backlash.

By repeating the above, all the struts 4 are mounted between the columns 3 (a, b). In this work, support 3
Although the strut 4 may be too large or short for various reasons with respect to the distance of the receiving member 6 (a, b) fixed to (a, b), the strut 4 can be adjusted in length, so it is impossible. There is no need to connect and the work is easy.

After the connection, the adjusting member 8 is rotated to put the strut 4 in a tensioned state, so that the receiving portion 1
The play between the pins 17 and the through holes 18 and 19 provided in the joint 2 and the joint 7 can be eliminated. Moreover, after the truss marion 2 is assembled, the struts 4 and the struts 3
Since the connection points (a, b) can be adjusted while harmonizing as a whole, unbalanced internal stress does not remain in the completed truss mullion 1.

Further, the adjusting member 8 is attached and adjusted at the time of adjustment.
Is rotated, there is no relative movement between the rod 5 and the stud 9, which are often made of an aluminum alloy or the like, and there is no loosening from this part. In FIG. 1, reference numeral 26 denotes a set bolt, which is used to prevent loosening of each screw portion in a state where play between the strut 4 and the column 3 (a, b) is absorbed. In the above, the truss mullions of the plane truss structure using the struts between the two columns arranged side by side have been described. However, the description about the three-dimensional truss structure in which the nodal members arranged in the space are connected by the struts is almost the same.

[0026]

According to the structure of the first aspect, since the length of the strut can be adjusted, it is easy to assemble the flat or three-dimensional truss structural member. When the strut is used for bracing and bundling on site, the length can be adjusted, so it is easy to use. Since the length of the strut can be adjusted, the structural member using the strut can evenly disperse the internal stress and prevent torsion and partial breakage.

Since there is no direct contact between the adjusting member and the rod, even if the adjusting member is repeatedly rotated during assembly, no loosening occurs between the rod and the stud. According to the configuration of the second and third aspects, it is possible to obtain a structural member free of twist and play. In addition, since the internal stress can be evenly dispersed, partial breakage does not occur after assembly.

According to the configuration of the fourth aspect, in the strut, the joint, the adjusting screw, the stud, and the like can be integrally formed with the form of the rod so as to be inconspicuous and have a clean appearance as a whole. Can function as a part of the interior.

[Brief description of the drawings]

Fig. 1 Cross section of truss marion

FIG. 2 is an exploded perspective view of a main part of the strut.

FIG. 3 is a side view of the truss marion shown in an attached state.

FIG. 4 is a plan view showing a cross section along the line AA in FIG. 3;

FIG. 5 is a side view (partial cross section) showing a main part of a connecting portion.

FIG. 6 is a sectional view of a conventional example (first example).

FIG. 7 is a sectional view of a conventional example (second example).

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 truss marion 2 curtain wall 3 (a, b) support 4 strut 5 rod 6 (a, b) receiving member 7 (a, b) joint 8 adjusting member 9 stud bolt 10 a female screw (rod) 10 b male screw (rod) 11 ( a, b) Fitting part 12 (a, b) Receiving part 13 (a, b) Mounting groove 14 (a, b) Fork part 15 (a, b) Cylindrical part 16 Female screw (joint) 17 (a, b) Pin 18 (a, b) Through hole (fork part) 19 (a, b) Through hole (receiving part) 20 (a, b) Male screw part (adjustment member) 21 Operation part (adjustment member) 22 Female screw part (adjustment member) ) 23 Operating part (stud bolt) 24 (a, b) Male thread (stud bolt) 25 Female thread (stud bolt) 26 Set bolt

Claims (4)

[Claims] 1. A joint, an adjusting member, a stud, and a rod are provided along one central axis, and the adjusting member has a through hole along the central axis, and has an outer surface formed into a male screw portion and an operating portion, and a through hole. The inner surface of the stud is formed in a female screw portion having a pitch different from that of the male screw portion, and the stud is integrally formed with a male screw portion on both sides of the operating portion. Was screwed into the female screw part of the rod, the stud was attached to the rod, the male screw part of the adjusting member was screwed into the female screw part of the joint, and the other male screw part of the stud was screwed into the female screw part of the adjusting member. Strut characterized by having a structure. 2. A flat truss structure comprising two long members and a plurality of struts according to claim 1, wherein the two long members are arranged at intervals, and the struts are provided between the long members by a strut. Bonded structural members. 3. A plurality of node members arranged in a space and a plurality of struts according to claim 1, wherein each of the nodes is connected to another node by at least three struts as viewed from one node. A structural member characterized by having a three-dimensional truss structure. 4. The outer shape of the joint, the outer shape of the operating portion of the adjusting member, the outer shape of the operating portion of the stud, and the outer shape of the rod are unified so as to form a single strut when combined. The strut according to claim 1 or 2, wherein: