JPS58217809A - Rotary angle control clamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotation angle adjusting fastener for connecting the main body and legs of a kotatsu tower, a television stand, a table, or the like, or between the legs.

Conventionally, the common method for attaching and detaching this type of body and legs was to install bolts on the body and bolts on the legs, and screw them together to tighten them. The problem with this method is that the cross-sectional shape of the leg must be circular.In other words, in the conventional screw-in method, the rotation angle when fastening is arbitrary, so the appearance of the leg does not change no matter what angle it is fastened. This is to ensure that. For example, if the cross-sectional shape of the legs is rectangular, when four legs are fastened together, they will be fixed in different positions, resulting in an unsightly appearance; There are places where it loosens and a gap is created between it and the main body, resulting in poor appearance and problems such as looseness. Furthermore, the lengths of the four legs become uneven, resulting in poor levelness in the installed state and a loss of stability.

Note that stand supports and table legs that are used by connecting two or more legs have the same drawbacks as described above.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and provides means for attaching and detaching various types of main body and leg bodies and leg bodies, in which one side is equipped with a cod ζ bolt and the other side is equipped with a nand. The present invention provides a rotation angle adjusting fastener that is configured so that the two parts can be fastened in a normal state by mutually finely adjusting the rotation angle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, FIG. 1 is a cross-sectional view of essential parts showing an embodiment according to the present invention, and FIG. 2 is a front view of the main body side of the embodiment according to the present invention, viewed from below.

Stepped holes including a large diameter hole 2a and a small diameter hole 2b are formed in the lower surface of the main body 1, and a cap 3 having a hat-shaped cross section is inserted into the stepped holes. The cap 3 has a through hole 5 for a fastening bolt 4 at its bottom, and has a hexagonal cross section that restrains the rotation of a hexagonal nut 6.

After inserting the hexagonal nut 6 into the camp 3 so that it can slide up and down while being rotationally restrained, insert the hexagonal nut 6 into the camp 3 through the spring seat 7.
The main body 1 is covered with a presser plate 8, and is fixed together with the cap 3 to the stepped portion of the large diameter hole 2a of the main body 1 with a fixing screw 9.

On the other hand, a leg 1ovc fixed to the main body 1 has a fastening bolt 4 implanted therein.

Therefore, the legs 1 are placed on the side of the main body 1 configured as described above.
0, use the fastening bolt 4 installed in the leg 10.
When it is fastened to the hexagonal nut 6 provided on the main body 1, since the rotation of the hexagonal nut 6 is restrained by the cap 3, it is fastened until the main body 1 and the leg 1o come into close contact with each other.

In this state, if it is necessary to adjust the rotation angle of the leg 10, if the leg 10 is rotated further, the hexagonal nut 6 will not rotate because the main body 1 and the leg 10 are in close contact with each other. Slide downward to compress the spring washer 7.

In this embodiment, since the maximum adjustment angle of the rotation angle is 180 degrees, adjustment can be made by only sliding the screw by half the amount of the screw pinch.

Here, the weight on the main body 1 side is received by the outer periphery of the leg 1o,
Lateral loads due to external forces can be caused by looseness or strength of the legs 10 because the main body 1 and the legs 10 are always in close contact with each other, and the hexagonal nut 6 is also restrained from moving laterally to the main body 1 via the cap f3f. Therefore, the basic structure according to the present invention is that the spring
゛Is it the same function without washer 7? However, it is better to insert the spring washer 7 in order to make the user feel comfortable tightening and to prevent loosening after setting.

As described above in detail, according to the rotation angle adjusting fastener according to the present invention, a nut is provided on either the main body or the leg body and can be slid vertically, and a bolt is installed on the other side. It has a simple structure, and the rotation angle can be adjusted by rotating only in the tightening direction, regardless of the external shape of the legs etc.

Therefore, the fixing position can be arbitrarily set regardless of the shape of the leg, and the final tightening can be completed with less force.

In addition, the connection height of the legs is constant, so there is no looseness.
In addition, the external shape can be made constant according to the shape of the legs.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an all-oil fastener according to an embodiment of the present invention;
FIG. 2 is a front view of the main body side of the embodiment according to the present invention, viewed from below. 1... Main body, 2a... Large diameter hole, 2b... Small diameter hole,
5- 3... Cap, 4... Fastening bolt, 5... Through hole, 6... Hexagonal nut, 7... Spring washer, end... Holding plate, 9... Fixing screw, 10 ...Leg body patent applicant Hideaki Sato, agent of NHK SPRING CO., LTD.

Claims (1)

[Claims] When detachably attaching the main body and legs of a stand, table, etc., a fastening bolt is planted on one side of the main body and the legs, and a hexagonal nut is installed on the other side to restrain rotation and to be able to slide up and down. A rotation angle adjustment fastener with all the following features.