JPS6034808Y2 - Structure of nut mounting part - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is applicable to equipment mounting parts, such as equipment mounting parts such as crosspieces made of channel-shaped materials fixed to the inner surface of a switchboard, etc., when equipment is mounted with bolts. The present invention relates to the structure of a nut mounting portion in which a nut is previously provided on the back side of a bolt through hole formed in the hole.

[Conventional technology and its problems]

To attach a device to the device mounting section, a hole for passing the device mounting bolt is provided in advance in the device mounting section, the bolt passed through the device is passed through the hole, and a nut is screwed on the back side to fasten the hole.

By the way, there are cases where it is not possible to put nuts on the back side of the equipment mounting part, and the bolt holes in the equipment mounting part are horizontally elongated holes so that the position can be adjusted when installing the equipment in the left and right direction. It is not possible to weld a nut to the back of the hole in advance, making it difficult to install equipment.

[Means for solving the problem] In order to solve the above problem, this invention consists of a nut body, a nut body support spring, and a device mounting part, and the nut body has a main plate part with a screw hole in the center. A short shaft portion supported by the spring is formed at the center of both opposite sides of the nut body, and the nut body support spring is formed by bending and protruding the central portion of the two long side opposite sides of the ring portion having repulsion elasticity to one side. The hanging part is for the short-frame shaft of the main body, the equipment mounting part is a metal plate, and the hole for the bolt through the equipment-mounting part is a long hole. The width of the hanging portion is within the range for the elongated hole of the device mounting portion, so that the nut mounting portion has a structure.

[Effect]

With the left and right short shafts of the nut body fitted into the left and right hanging parts of the nut body support spring, the nut body is faced diagonally to the long hole, and both the hanging parts of the nut body support spring are also long. After the nut is inserted into the hole and the nut body is located on the back side of the long hole, the spring is pulled out, so that the ring portion of the spring returns to its original shape due to rebound resilience, supporting the nut body on the back side of the long hole.

〔Example〕

In FIGS. 1 and 2, A is a nut body, B is a spring for supporting the nut body, and 6 is a device mounting portion.

The nut body A has a screw hole for screwing in a bolt in the center of a rectangular main plate part 1, and short protruding shaft parts 3 are formed in the center on both opposing sides of the main plate part 1.

The spring B for supporting the nut body is formed by bending and protruding the central part of the two long opposing sides of the ring part 4 made of a filament having repulsion elasticity to one side, and using this part as a hanging part 5 for the short shaft part 3 of the nut body. It is.

The device mounting portion 6 is, for example, a crosspiece made of channel-shaped material, and the front side thereof is provided with a long hole 7 for passing a bolt for mounting the device.

The width of the short shaft part 3 of the nut body and the width of the hanging part 5 for the short shaft part of the spring for supporting the nut body are set within the width of the long hole 7 of the device mounting part. 3 is a size that allows it to be supported by the hanging portion 5 without wobbling.

Although the illustrated nut body support spring B is made of steel wire, it may also be made of a band-shaped ring body punched from a thin plate having rebound resilience.

Also, this spring only needs to support the nut body so that it does not rotate when the bolt is screwed into the nut body, and there is no problem even if this spring is crushed by bolt tightening, so it is not necessarily made of metal but is made of plastic. You can also do that.

〔effect〕

This nut attachment structure has the following effects.

(1) The nut body is equipped with a short shaft on both left and right sides, and when the short shaft is fitted into a hanging part with the central part of the two opposing long sides of the annular spring bent toward one side, the nut body is fitted. can be inserted obliquely into a long hole for passing a bolt formed in the equipment mounting part and moved to the back side of the long hole.

(2) Since the nut body support spring is in an annular shape, by moving the nut body to the back side of the long hole while supporting the nut body, and then applying a pulling force to the spring, the nut body overlaps the back side of the long hole, and the spring The annular portion of the nut can be restored to its old form due to its repulsion elasticity, and can support the nut body in a non-rotatable manner by overlapping with the slotted portion of the long hole.

(3) The width of the short shaft part of the nut body and the width of the hanging part for the short shaft part of the spring are within the width of the long hole for bolt passage in the equipment mounting part, so the nut body When the nut is inserted into the long hole and completely moved to the back of the long hole, a pulling force is applied to the nut body support spring, so that the short shaft part of the nut body and its hanging part face the long hole part, and the nut is removed. The main body fits precisely against the back of the long hole, allowing the bolt passed through the device to be securely screwed into the nut main body through the long hole.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of an example of a nut according to the present invention, Fig. 2 is a front view of main parts of the nut mounting part of the present invention in a usage mode, and Figs. 3 to 5 are side views showing the nut installation process in order. It is. A... Nut body, 1... Main plate part, 2
...Screw hole, 3...Short sentence shaft part, B...
... Nut body support spring, 4 ... Ring part, 5 ... Hanging part, 6 ... Machine mounting part, 7 ... Long hole .

Claims (1)

[Scope of utility model registration request] The nut body consists of a nut body, a nut body support spring, and a device mounting part, and the nut body has a main plate part with a screw hole in the center, and short shaft parts supported by the springs are formed at the center of both opposite sides of the main plate part. The central part of the two long opposing sides of the ring portion having rebound elasticity is bent and protruded to one side, and this protrusion is used as a hanging part for the short-length shaft part of the nut body, and the equipment mounting part is a metal plate and the equipment is mounted. The bolt passing hole shall be a long hole, and the width of the short shaft part of the main plate of the nut body and the width of the hanging part for the short shaft part of the nut main body support spring shall be within the range of the width of the long hole of the device mounting part. The structure of the nut mounting part is characterized by: