JPS6020729Y2 - Turnbuckle for bracing - Google Patents

Description

[Detailed description of the invention] The present invention relates to a turnbuckle for bracing, and its purpose is to enable use of a turnbuckle having a flat plate portion such as an angle material and having a large moment of inertia as a bracing. , when two sets of bracing are crossed in an X shape, the overlapping width at the intersection is minimized to 2
By making it possible to bring the installation surfaces of the series of bracings very close together, the overall traction and tension support strength for rectangular frameworks, primarily for building wall construction, can be greatly increased; Moreover, despite the above-mentioned close installation, a large working space can be realized for the turnbuckle rotation operation, and the operation can be carried out quickly and easily without any trouble.

That is, conventional bracing turnbuckles generally have
Bracing was composed of two rods with male threads formed at their butt ends, and female threads were formed on both sides to engage with the male threads, but the rods had a small moment of inertia and were easily damaged by earthquakes. In addition, there is a risk of unexpected bending or cutting when there is vibration, and if two such bracings are used,
When the rods intersect in a shape (an ideal construction configuration where the turnbuckle is placed in the center of the overall length, there is no excess or deficiency in the length of both rods, that is, the strength), the width of the turnbuckle is relatively large. In addition, in order to secure a turnbuckle rotation operation space, the construction surfaces of the two sets of bracing were separated, resulting in insufficient support strength.

The present invention was developed in view of the above circumstances, and first, an embodiment thereof will be explained based on the drawings.Basically, the invention has reverse threads 1,1゛ on both sides, and a rotary operation in the middle part. A male threaded member A having a section 2, a female thread 3.3' for the both side threads 1 and 1' are formed in the small diameter cylindrical parts 3A and 3A' drawn at one end of the pipe, and a female thread 3.3' is formed on the other end by pressurization. By flattening, the overlapping flat connecting portion 4 of the bracing C, C' having at least one flat plate portion 8, 8' and having a relatively large moment of inertia to the flat plate portion 8°8' is formed. , 4', a pair of left and right connecting members B
, B' is a bracing turnbuckle which is separated from the two connecting members B.

In at least one of B', the integral connecting part 5 between the small diameter cylindrical part 3A and the flat connecting part 4 is pressurized in the same way as the flat connecting part 4. The preferred specific structure for implementation is as follows.

The bracings C and C' are made of angle material.

A bolt/nut 7.7' is used as a connecting member with the bracing Ct''.

However, it is also possible to connect them by welding.

When using the bolt/nut 7, 7', it is preferable to form a groove 4at 4a' for preventing rotation in the overlapping flat connecting portions 4, 4' during the pressurizing process.

However, the entire structure may be flattened, and in this case, the rotation preventing means may be welding or adhesion of a nut, or inserting a split pin.

Peepholes 6 and 6' are provided in both connecting members B and B', respectively, so that it can be confirmed that the screwing depth of the male threaded member A is at least 1° 1°.

9.9' is a hole formed at the end of the flat plate parts 8, 8', which can be freely engaged with the head pin 10.10' of the connecting tool D' attached to the corner of the rectangular framework. .

The rotary operating portion 2 may be formed into an irregular cross section such as a square or hexagon for fitting with a spanner, or may be formed into a hole for inserting an operating rod.

The length L of the integrally connected portion 5 is greater than its own width.

This width is equal to the width of the flat connecting portion 4.

In the connecting member B' to the thread 1' at the other end of the male threaded member A, the integral connecting portion 5' is short to save material, but this prevents this member B' from being constructed in the same way as the other member B. It's not a thing.

The two bracings installed cross-over overlap each other at the flat integral connecting portions 5, 5', and the respective rotary operating portions 2, 2
A sufficiently large working space for rotational operations appears around the .

Bracings C and C' may be made of thick flat bars or square pipes in addition to angle materials.

In summary, the bracing turnbuckle according to the present invention has at least one flat plate part 8.8', and the flat plate part 8.8 of the bracing C, C' has a relatively large moment of inertia. A bracing turnbuckle is connected to a male threaded member A having reverse threads 1 and 1' on both sides and a rotation operation part 2 in the middle part, and a male threaded member A connected to one end of the pipe. Female threads 3, 3' for the screws 1, 1' on both sides are formed in the drawn small diameter cylindrical part 3At 3A', and the flat plate part 8 of the bracing C9C' is formed by flattening the other end by applying pressure. 8
A pair of left and right connecting members B, B' forming an overlapping flat connecting portion 4.4' with respect to the connecting members 13. The integral connecting portion 5 between the small-diameter cylindrical portion 3A of at least one of the connecting members B and the flat connecting portion 4 of B' has a length L larger than its width L1, and is shaped similarly to the flat connecting portion 4. It is characterized by being flattened by pressure, and the relationship between the female thread and the male thread of the turnbuckle is reversed from the conventional one, and the connecting member has a male thread member A in the middle and female threads 3 and 3' on both sides. B, B' are arranged, and this connecting member 33.
Since the connecting parts 4 and 4' at the ends of B' are flattened, it is possible to use a material with a large moment of inertia such as an angle material as the bracing C and C', and
In particular, in at least one of the connecting members B, the integral connecting portion 5 between the small diameter cylindrical portion 3A and the flat connecting portion 4 is flattened, and the length L is made larger than the width L1. When two sets of similarly configured bracings are cross-erected in an X-shape, the turnbuckle is placed approximately in the center of the entire length, which is an ideal form, but the flat, integral connection part of the two sets of bracings is 5, 5 can be superimposed and their construction surfaces can be brought very close together, so the overall traction and tension support strength can be greatly increased, and the rotary operation parts 2, 2 of both can be separated. Since a work space for a large rotational operation can be created around each of them, the operation, that is, the bracing tensioning work can be performed quickly and easily in a wide space.

[Brief explanation of the drawing]

The drawings show an embodiment of the bracing turnbuckle according to the present invention, with FIG. 1 being a front view in an installed state, FIG. 2 being an enlarged front view of the main part, and FIG. 3 being a longitudinal side view. 1.1'...Screw, 2...Rotary operation part, 3'...Female thread, 3A, 3A'...
・Small diameter cylindrical part, 4'...Flat connecting part, 4a, 4a
'... Concave groove,... integrally connected part, 6, 6'.
...Peephole, 7°...Bolt/Nut, 8,8
'...Flat plate part,...Male thread member, 33. B
'...Connection member, C9...Bracing. 3゜4゜5... 7'... A... C'...

Claims (1)

[Claims for Utility Model Registration] ■ Bracing c having at least one flat plate portion 8,8'' and having a relatively large moment of inertia
, c' is a bracing turnbuckle connected to the flat plate parts 8, 8'', and has reverse threads 1 on both sides.
, 1" are rounded and have a rotation operation part 2 in the middle part, and small diameter cylindrical parts 3A, 3A' drawn at one end of the pipe, respectively, have female threads 3 corresponding to the threads 1, 1" on both sides.
. Further, the integrally connected portion 5 of the small diameter cylindrical portion 3A of the connecting member B of at least one of the connecting members B and B′ and the flat connecting portion 4 has a width of A bracing turn pattern characterized in that the length L is greater than L□ and is flattened by pressure like the flat connecting portion 4. ■ The width L1 of the integrally connected portion 5 is the same as that of the flat connecting portion 4.
The bracing turnbuckle according to claim 2, which has a width equal to the width of the bracing turnbuckle. (2) A concave groove 4at4a' for preventing rotation of the connecting bolt/nut 7.7' is formed in each of the flat connecting parts 4, 4'. Utility model registration claims Items (2) to (3) The bracing turnbuckle according to any of the paragraphs. (2) Peep holes 6.6' are formed in both the connecting members B and B', respectively, for confirming the predetermined screwing depth of the screws 1 and 1' on both sides. or part ■
A turnbuckle for a bracing according to any of the paragraphs. ■ The bracing c, c' is made of angle material.Claims (■) to (■) of the utility model registration claim
The bracing turnbuckle according to any of the paragraphs.