JPH0226139Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sealing member for a waterproof connector used in a connector that requires a waterproof structure.

[Conventional technology]

In waterproof connectors, a cylindrical rubber sealant is filled between the wires in the wire lead-out portion and the housing to prevent water from entering from this portion. Furthermore, in order to prevent the connection terminals housed in the housing from coming out later, the rear portions of the connection terminals are fixed with a locking member. When a sealing material is used, the sealing material is crimped onto the connection terminal, but since the sealing material is flexible, it is of no use in preventing slippage. Furthermore, if a tensile force is applied to the sealing material, it may come off the crimped portion, which is disadvantageous.

[Purpose of invention]

An object of the present invention is to provide a sealing member for a waterproof connector that can be effectively used to prevent connection terminals from falling out later.

[Summary of the idea]

The gist of this invention to achieve the above objectives is as follows:
Seal materials made of an elastic material having sealing surfaces are provided on the outer and inner surfaces of a cylindrical base made of a rigid material as a skeleton member, and these outer and inner seal materials are inserted through horizontal holes provided in the base. This is a sealing member for a waterproof connector characterized by being integrally molded.

[Example of idea]

The present invention will be explained in detail based on illustrated embodiments.

FIG. 1 is a sectional view of the waterproof connector sealing member 1, and FIG. 2 is a sectional view seen from the vertical direction of FIG. The base body 2 is formed of a stepped cylindrical rigid material, such as metal or hard synthetic resin, and sealing materials 3a and 3b such as rubber having elastic properties are provided on the outer and inner surfaces of the large diameter portion of the base body 2. It is arranged. The outer sealing material 3a and the inner sealing material 3b are integrally molded through the horizontal hole 4 bored in the base body 2, and the outer sealing material 3a and the inner sealing material 3
A plurality of annular protrusions 5 having a sealing function are formed on b.

FIG. 3 is a sectional view of a waterproof connector to which this waterproof connector sealing member 1 is applied as a sealing member. A connection terminal 11 is housed in the housing 10, and an electric wire 12 is drawn out from the connection terminal 11.
A portion of the connection terminal 11 is crimped onto the small diameter portion of the base 2 of the seal member 1. Housing 10 and wire 12
A sealing member 1 crimped to the connecting terminal 11 is interposed between the connecting terminal 11 and the annular protrusion 5 of the sealing member 1 to prevent water from entering from the outside. Since the base 2 of the seal member 1 is made of a rigid material, the seal member 1 can be used to push the connection terminal 11 into a predetermined position, and the locking member 13 shown in FIG.
It is possible to apply from the outside of 0 and prevent the connection terminal 11 from coming off later.

[Effect of idea]

As explained above, the sealing member for a waterproof connector according to the present invention has a base made of a rigid material, thereby preventing the sealing material from being subjected to excessive expansion and contraction deformation in the axial direction, and setting the connection terminal at an accurate position. Furthermore, by using a locking member, it is possible to prevent the connection terminal from coming off later.

[Brief explanation of the drawing]

The drawings show an embodiment of a sealing member for a waterproof connector according to the present invention, and FIG. 1 is a sectional view;
Figure 2 is a sectional view seen from the vertical direction of Figure 1;
The figure is a partial sectional view of the waterproof connector. 1 is a sealing material, 2 is a base body, 3a is an outer sealing material, 3b is an inner sealing material, 4 is a horizontal hole, and 5 is an annular projection.

Claims (1)

[Claims for Utility Model Registration] 1. A cylindrical base body made of a rigid material serving as a skeleton member is provided with a sealing material made of an elastic material having a sealing surface on each of the outer and inner surfaces, and these outer and inner sealing materials are A sealing member for a waterproof connector, characterized in that it is integrally molded through a horizontal hole provided in a base. 2. The sealing member for a waterproof connector according to claim 1, wherein a plurality of annular protrusions are provided on the inner and outer sealing surfaces of the sealing material.