JPS605188Y2 - Metal plate eye joint - Google Patents

Description

[Detailed description of the invention] This invention is a pipe with a diameter of 207 rL/7 that is installed in many vehicles or various mechanical devices as a supply path for oil and air.
This invention relates to an improvement in the eye joint structure as a connecting fitting that is fixed to the end of a metal tube or a resin tube having a relatively small diameter of about 7L or less.

Generally, as shown in Fig. 4, conventional eye joints are installed by cutting a rod or the like into the shaft core with a hole 12 passing through the hole, and an annular groove 1 inside the hole.
6, and the mounting includes pressure receiving surfaces 13 on the outer peripheral surfaces on both sides of the hole periphery.
The main body 11 was formed by machining the main body 11 and the abutting seat surface 14, respectively.

Therefore, such troublesome cutting work is required, which leads to production stagnation, and in particular, the pressure receiving surface 13
Since the side generally has a large-diameter structure, it is necessary to use relatively large and heavy bolts for tightening.

The purpose of the present invention is to provide an eye joint in which the above-mentioned drawbacks are very effectively solved by using a pressed bottom mold made of metal plate material, especially a bowl-shaped structure.An embodiment of the present invention is shown in Fig. To explain in detail about Figures 3 to 3,
The bowl-shaped main body 1 has a mounting hole 2 at its top, and the outer surface of the periphery of the hole is a flat pressure-receiving seat surface 3, and the opening end surface on the lower end side is connected to the other mounting hole. It is made of a press-molded metal plate such as a steel plate, an aluminum plate, or a brass plate with a contact seat surface 4, and a connecting hole 5 communicating with the inside is provided in the side wall 1' of the bowl-shaped main body 1. .

The end of the branch pipe or pipe 7 is fixed 9 to the connection hole 5 by brazing, gluing, or the like.

Note that the reference numeral 6 is tightened with a bolt, and the mating member 8 is attached by squeezing the main body 1 between them and screwing them together.

As described above, according to the present invention, it can be constructed extremely simply by using metal plates as the material and manufacturing them by press molding.
In particular, it eliminates the need for groove machining inside, and the pressure receiving surface 3
and the abutting seat surface 4 can be constructed simultaneously during the bowl-shaped curved press molding, which greatly reduces the number of machining steps and can be manufactured at low cost.At the same time, the pressure-receiving seat surface Because of the structure with a small diameter on the 3 side, the bolt 6 used for tightening can be made generally smaller and lighter.

[Brief explanation of drawings]

Fig. 1 is a plan view of a metal plate eye joint according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line A-A of Fig. 1 in the connected state, and Fig. 3 is a plan view of an eye joint made of a metal plate according to an embodiment of the present invention. FIG. 4, which is similar to FIG. 2, is a sectional view of a conventional example in a connected and used state. 1... Bowl-shaped main body, 1'... Side wall part, 2
...Mounting hole, 3...Pressure bearing surface, 4.
...Abutment seat surface, 5...Connection hole, 7...Branch pipe or piping.

Claims (1)

[Scope of utility model registration request] A mounting hole is provided at the top, and the outer surface of the mounting hole is formed into a flat pressure-receiving bearing surface on the periphery of the hole, and the open end surface on the lower end side is formed into an abutting seating surface for the mating mounting part. An eye joint made of a metal plate, characterized in that a branch pipe or a pipe end is fixed to a connecting hole provided in a side wall of a bowl-shaped body made of a metal plate made by a press bottom mold, and communicates with the inside of the bowl-shaped body.