JPS6120827Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a terminal box in which a main body and a lid are fastened together using, for example, bolts.

Conventionally, there has been a device of this type as shown in FIG. In the figure, 1 is the terminal box body, 2 is the terminal box lid, 3 is a tightening bolt for tightening the terminal box body 1 and the terminal box lid 2, and 4 is a bolt assembled between the terminal box body and the terminal box lid 2. It is a well-made Patsukin.

Next, the operation will be explained. After installing terminals such as conductive members (not shown) in the terminal box body 1,
When each wiring is completed, a gasket 4 is sandwiched between the terminal box body 1 and the terminal box lid 2, and then the terminal box body 1 and the terminal box lid 2 are tightened with the tightening bolts 3.
The integrated terminal box is then attached to a rotating electrical machine (not shown), and serves its role depending on the intended use of the rotating electrical machine. However, when it becomes necessary to remove the terminal box body 1 and the terminal box lid 2 for some reason, since these have often been tightened with the tightening bolts 3 for many years, the seals 4 etc. also deteriorate and the terminal box lid 2 is removed. The main body 1 and the terminal box lid 2 are firmly adhered to each other, making it extremely difficult to remove the terminal box lid 2 from the terminal box main body 1.

Conventional terminal boxes are constructed as described above, so if you want to remove the terminal box body and terminal box lid, you must insert a thin iron plate between the body and the lid and pry it open, which requires special tools. In addition, there was a drawback that it took time and effort to remove it in this way.

This invention was made to eliminate the drawbacks of the conventional ones as described above, and provides a terminal box whose lid can be easily removed by providing jack bolts on the terminal box lid or the terminal box body. It is intended to.

An embodiment of this invention will be described below with reference to the drawings. In FIG. 2, reference numeral 5 designates jack bolts which are provided at several locations on the terminal box lid 2 and are threaded and fitted.

Note that the other configurations are the same as those of the prior art, so explanations will be omitted.

Next, the operation will be explained. When removing the terminal box cover 2 from the terminal box body 1, first remove all the tightening bolts 3 that tighten the terminal box cover 2 and the terminal box body. Next, the jack bolt 5, which is screwed into the terminal box lid 2 and whose tip is in contact with the surface of the terminal box body 1, is turned in the direction of thread movement of the jack bolt 5 using a spanner or the like (not shown). Then, since the tip of the jacking bolt 5 is in contact with the joint surface of the terminal box body 1, as the jacking bolt 5 advances, the terminal box main body 1 and the terminal box lid 2 will be separated by that amount. By turning the jack bolts 5 at several locations in the direction in which the screws advance, the terminal box body 1 and the terminal box lid 2 can be completely removed.

In the above embodiment, the jack bolt is provided on the terminal box lid, but the jack bolt may be provided on the terminal box body.

As described above, according to this invention, since the jack bolt is provided on the terminal box lid or the terminal box body, there is an effect that the terminal box lid can be easily removed from the terminal box body.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional terminal box, and FIG. 2 is a partially sectional side view of a terminal box according to an embodiment of the invention. In the figure, 1 is a terminal box body, 2 is a terminal box lid, 3 is a tightening bolt, 4 is a gasket, and 5 is a jack bolt. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A terminal box having a main body for storing a conductor and a lid for protecting the terminal box, characterized in that either the main body or the lid is provided with a jack bolt for removing the main body and the lid.