JPH0533259Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a jig used for bolt tightening work, particularly for bolt tightening to prevent the bolt head or nut from rotating during bolt tightening work. Regarding jigs.

[Conventional technology]

In conventional bolt tightening work, when one worker cannot hold the nut and rotate the bolt with a wrench using both hands, the work is done by two people, and one worker holds the nut with a wrench, etc. While holding the bolt, another person is rotating the bolt using another spanner or the like.

[Problem that the invention attempts to solve]

However, in the above-mentioned bolt tightening work performed by two people, each worker has to synchronize the operation pace with each other, which leads to a decrease in efficiency, and there are problems in that the increase in the number of workers leads to higher costs.

The present invention attempts to solve these problems and aims to provide a bolt tightening jig that allows one person to perform the bolt tightening operation efficiently with one hand.

[Means for solving problems]

Therefore, the bolt tightening jig of the present invention includes a plurality of support rods each having a magnet at one end and a spring receiver at the other end, a socket support member through which the support rods are inserted, and the socket support member and the spring. a spring loaded between the socket support member and the support surface on the magnet side of the socket support member;
It is characterized in that the socket into which the bolt head or nut is fitted is firmly supported.

[Effect]

When using the above-mentioned bolt tightening jig of the present invention, the nut is first fitted into the socket and held, and the socket support member is fixed to the bolt tightening part using a magnet.

As a result, even if the bolt is rotated with a spanner or the like, the nut will not rotate together, and the bolt tightening action will be performed.

[Embodiment] A bolt tightening jig as an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is a perspective view of the main parts thereof.

As shown in FIG. 1, as a jig for tightening two steel plates 8 and 9 with nuts 6 and bolts 7, a socket 5 that can fit and hold the nut 6 is used as a socket support member. plate 3
It is firmly supported.

Two support rods 2 having a magnet 1 at one end and a spring receiver 2a at the other end are inserted through the plate 3, and the plate 3 and the spring receiver 2a
A spring 4 is loaded between the two.

With the above-mentioned configuration, when using the bolt tightening jig of the present invention, the magnet 1 is first attracted and fixed to the steel plate 8, the socket 5 is fitted and held in the nut 6, and then the bolt is tightened with a spanner or the like. 7 is rotated. At this time, since the nut 6 does not rotate together with the bolt 7, one person can tighten the bolt with one hand.

In addition, since the plate 3 is always pressed against the steel plates 8 and 9 by the action of the spring 4, the nut 6
When fitting the socket 5 and the nut 6, as the bolt 7 is slightly rotated and the nut 6 is aligned with the square hole of the socket 5, the urging force of the spring 4 forces the socket 6 to fit into the nut 5. I come to do it.

Furthermore, since the socket 5 and plate 3 are fixed to the steel plate 8 by the magnet 1, they can be easily attached and detached.

In the above-mentioned embodiment, the socket 5 is fitted into the nut 6 and the bolt 7 is rotated when tightening the bolt.
Conversely, the socket 5 may be fitted into the head of the bolt 7, and the nut 6 may be rotated.

[Effect of the invention]

As detailed above, the bolt tightening jig of the present invention provides the following effects and advantages.

(1) Since the nut is fitted and held by the socket that is firmly supported by the socket support member, it is possible to prevent the nut from rotating together with the rotation of the bolt.
Bolts can be tightened with one hand.

(2) Paragraph (1) above results in a reduction in work costs.

(3) Since the socket support member is attached to the bolted part using a magnet in the support rod inserted through the socket support member, it can be easily attached and detached.

(4) Since the socket support member is pressed toward the bolted portion by the action of the spring, the socket can be easily fitted into the nut by adjusting the bolt by minute rotation.

(5) It is also possible to tighten the bolt by fitting the socket onto the head of the bolt and rotating the nut.

[Brief explanation of the drawing]

The figures show a bolt tightening jig as an embodiment of the present invention, with FIG. 1 being a longitudinal cross-sectional view thereof, and FIG. 2 being a perspective view of the main parts thereof. 1... Magnet, 2... Support rod, 2a... Spring receiver, 3... Plate as a socket support member, 4... Spring, 5... Socket, 6... Nut, 7... Bolt, 8, 9 ...Steel plate.

Claims (1)

[Scope of utility model registration request] A plurality of support rods having a magnet at one end and a spring receiver at the other end, a socket support member inserted through the support rods, and a spring loaded between the socket support member and the spring receiver. . A bolt tightening jig, characterized in that a socket into which a bolt head or a nut is fitted is fixedly supported on a support surface on the magnet side of the socket support member.