JPH09147966A - Waterproof rubber ring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the waterproof property of a rubber ring. SOLUTION: When the plural tubular parts 11 in a female side connector 10 are installed to the plural openings 21 in a male side connector 20, boots 31 forming a watertight surface are formed to cover the tubular parts 11, and together with this, a seal 32 is formed on the outer peripheral surface by connecting the ends of the boots 31, and furthermore, a hood 22 to cover the outer peripheral surface of the seal 32 is formed at the male connector 20 side. Consequently, watertight surfaces are to be formed to each chamber, while a first stage of watertight surface is formed between the female side connector 10 and the male side connector 20, and a better waterproof property can be exercised.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a waterproof rubber ring.

[0002]

2. Description of the Related Art In a conventional connector or the like, a hood portion is formed on one of a male connector housing and a female connector housing that respectively hold a plurality of terminal fittings, and the other is inserted into the hood portion so that the hood portion is inserted between them. It is waterproof with a ring-shaped rubber seal. However, in this case, even if a part of the rubber seal leaks water, all the terminal fittings will be flooded. For this reason, in some cases, a tubular portion and an opening into which the tubular portion can be inserted are formed for each pair of terminal fittings, and a rubber seal is interposed in each individual chamber.

[0003]

In the above-mentioned conventional waterproof rubber ring, although leakage of water from one location can be prevented from immediately infiltrating into another terminal metal fitting accommodating chamber, it is also possible to prevent such infiltration of water into one location. There was a problem that I wanted to do. The present invention has been made in view of the above problems, and an object of the present invention is to provide a waterproof rubber ring capable of exhibiting more nearly perfect waterproof performance.

[0004]

In order to achieve the above object, the invention according to claim 1 is such that a cylindrical protruding portion of a first member is inserted into an opening of a second member and an inner peripheral surface of the opening is formed. A waterproof structure in which a ring-shaped sealing member is interposed between the outer peripheral surface of the protruding portion and the outer peripheral surface of the protruding portion to form a watertight surface, and the first member includes a plurality of the protruding portions and a plurality of the second members. The seal member of the first member further includes a tubular first seal portion that surrounds a peripheral edge of each protruding portion to form a waterproof surface on an inner peripheral surface and an outer peripheral surface, and each first seal. A second seal part having a waterproof surface formed on the outer peripheral surface while connecting one end of the part in a planar shape,
The opening surface of the second member is provided with a dish-shaped recess into which the watertight surface can be formed at the peripheral edge by inserting the second seal portion. The invention according to claim 2 is the waterproof rubber ring according to claim 1, wherein after the first seal portion is mounted, a cap-shaped retaining member is attached to the tip of the protruding portion to prevent the retaining. The waterproof rubber ring is prevented from coming off by contacting the front end surface of the first seal portion at the rear end edge of the member.

[0005]

In the invention according to claim 1 configured as described above, the first member is formed with a plurality of projecting portions, and the second member is also formed with a plurality of openings. When they face each other and come close to each other, each protruding portion enters into each opening. Here, the seal member attached to the first member is provided with a cylindrical first seal portion that surrounds the peripheral edge of each protruding portion and forms a waterproof surface on the inner peripheral surface and the outer peripheral surface. The first member is mounted on the first member from the side connected in a circular shape. When approaching the second member side in this state, each projecting portion enters into the opening, whereby the first seal member is sandwiched between the projecting member and the opening to form a watertight surface. On the other hand, the seal member also has a second seal portion on the outer peripheral surface, and when the first member is brought closer to the second member side, the second seal portion on the outer peripheral surface is inside the dish-shaped recess in the second member. And the second seal portion forms a watertight surface between the first member and the second member. Further, in the invention according to claim 2 configured as described above, when the cap-shaped retaining member is attached from the tip of the protruding portion after attaching the first seal portion,
The protruding portion expands in the radial direction at the tip end side, and the front end surface of the cylindrical first seal portion comes into contact with the rear end edge portion of the retaining member, so that it does not come out.

[0006]

As described above, according to the present invention, the second seal portion is integrally formed between the first member and the second member while the first seal portion forms the watertight surface for each individual chamber. A waterproof rubber ring capable of forming a watertight surface and exhibiting more complete waterproof performance can be provided. Further, since the first seal portion and the second seal portion are integrated, it is possible to reduce the labor of arranging the seal member for each individual chamber. Further, conventionally, it is necessary to prevent the seal portion between the connector housings and the seal portions of the individual chambers from coming off. However, according to the invention of claim 2, it is possible to prevent the first seal portion from coming off. As a result, the integrated second seal portion can also be prevented from coming off, and it is not necessary to prevent it from coming out individually. In particular, since a cap-shaped retainer that double-locks the terminal fittings may be attached to the protruding portion, the double-locking and the retaining member can be used together by attaching such a retainer.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a partially cutaway perspective view of a female connector to which a waterproof rubber ring according to an embodiment of the present invention is applied, and FIG. 2 is an exploded perspective view thereof. 3 is a partially cutaway perspective view of the male connector. In addition, in each connector,
Only the tips that join together are shown. In the figure, the female connector 10 has two tubular portions 11 and 11 for holding female terminal fittings (not shown),
The male connector 20 has two openings 21 and 21 into which the tubular parts 11 and 11 can be inserted, and when the male side connector 20 is assembled with each other as described later, the tubular part 11 enters the same opening 21. Then, the female side terminal fitting and the male side terminal fitting are fitted and connected. At this time, the seal member 30 is interposed between the female connector 10 and the male connector 20 to form a watertight surface at a predetermined position described later.

In this embodiment, the two tubular parts 1
1, 11 and two openings 21 and 21 are formed, but the number and arrangement thereof are not particularly limited. For example, as shown in FIGS. 4 and 5, four openings may be provided. It can be changed. Further, it is not always necessary to provide the terminal fittings one by one for each of the tubular portion 11 and the opening 21, and a plurality of terminal fittings may be attached and combined as one group. I do not care. Further, each of the connectors 10 and 20 does not have to be a single connector housing, and may be formed integrally with a casing that houses an electric device, for example.

One seal member 30 is attached to the female connector 10, and two cylindrical individual chamber seal portions 31, 31 are formed corresponding to the two cylindrical portions 11. Each tubular portion 11
Has a large diameter on the base side and a small diameter from the middle to the tip side, and the private chamber seal portion 31 has an inner diameter corresponding to the outer diameter of the small diameter portion and is watertight between the two. Form a surface. In the present embodiment, the private room seal portion 31 constitutes the first seal portion. On the other hand, a cap-shaped retainer 11a can be attached to the tip of the tubular portion 11 in a state where the private chamber seal portion 31 is attached so that the retainer 11a has the same outer diameter as the root side. That is, after the seal member 30 having the two private chamber seal portions 31 and 31 is put on the two tubular portions 11 and 11, the cap-shaped retainer 11 is provided.
By attaching a and 11a, the private room seal portion 31,
It is configured so that 31 does not come out along the tubular portions 11, 11. Note that each retainer 11a also double-locks so as to prevent the internal terminal fittings from coming into the tubular portion and coming out. The private chamber seal portion 31 is in close contact with the inner peripheral surface of the opening 21 when the tubular portion 11 enters the opening 21,
As a result, the watertight surface is formed by being interposed between the outer peripheral surface of the tubular portion 11 and the inner peripheral surface of the opening 21.

On the other hand, the ends of the individual chamber seal portions 31, 31 are connected to each other and spread out in a plane. The outer peripheral surface of this connecting portion is also a lip-formed seal portion 32. Corresponding to the outer peripheral surface of the seal portion 32, the male side connector 20 is surrounded by the opening surfaces of the openings 21 and 21 from the outer peripheral side. The hood part 22 to insert is provided. This hood part 22
Corresponds to the thickness of the seal portion 32 and has a size such that the seal portion 32 comes into close contact with the outer diameter, and corresponds to a dish-shaped recess. The seal portion 32 constitutes a second seal portion.

As described above, when the tubular portion 11 enters the opening 21 and abuts on the inner side, the seal portion 32 is inserted.
Enter into the hood portion 22 and adhere to the inner peripheral surface of the hood portion 22 to form a watertight surface. Therefore, the female connector 1
0 and the male connector 20, a watertight surface is formed in the seal portion 32, and the individual chamber seal portion 31 forms a watertight surface in each individual chamber inside the double watertight surface. The surface is formed to improve the waterproof performance. The female connector 10 is provided with a tubular outer tubular portion 12 into which the hood portion 22 can be inserted.

In the present embodiment, the individual chamber seal portion 31 is formed as the first seal portion that covers the tubular portion 11, and the rear end of this individual chamber seal portion 31 is formed as a second seal portion on the outer peripheral surface that is connected in a planar manner. Although the seal portion 32 is formed, an existing lip or the like may be formed on the shape of each seal surface. In addition, each private room seal part 31 and seal part 3
The surface connecting with 2 does not have to have a particularly waterproof performance, and may have a perforated shape. In addition, a support wall may be formed on the inner wall surface of the female connector 10 in order to hold it from the inside of the seal portion 32.

As described above, when the plurality of tubular portions 11 of the female connector 10 are inserted into the plurality of openings 21 of the male connector 20, the individual chamber seal that covers each tubular portion 11 to form a watertight surface. The seal portion 3 is attached to the outer peripheral surface while connecting the end portion of the private room seal portion 31 with the portion 31.
2 is formed, and the hood portion 22 that covers the outer peripheral surface of the seal portion 32 is formed on the male connector 20 side, so that the watertight surface of the first stage between the female connector 10 and the male connector 20 is formed. While forming a watertight surface, a watertight surface is formed for each individual room, and more waterproof performance can be exhibited.

By the way, FIGS. 6 to 10 show a connector in which the seal member 60 is easily mounted.
In this example, on the female connector 40 side, a hood-shaped opening 42 is formed at the tip of a cylindrical body 41 that accommodates the female terminal fitting, and on the male connector 50 side, a male terminal fitting 51 is provided. A stepped cylindrical portion 52 is formed at the root portion.
A ring-shaped seal member 60 can be mounted in each opening 42, and an engagement hole 42a that communicates with the inside and outside is formed on the peripheral wall surface of the opening 42 to prevent the seal member 60 from coming off. A protrusion 61 is formed on the outer peripheral surface toward the engagement hole 42a.
Is formed. In addition, on the female connector 40 side, a retainer 43 is inserted through the opening 42 to double-lock the internal female terminal fitting.

When the two connectors 40 and 50 are combined,
When the tubular portion 52 at the base portion of the male-side terminal fitting 51 enters into the hood-shaped opening 42, the seal member 6 is interposed between the two.
0 intervenes and forms a watertight surface. Generally, since the seal member is mounted on the inner side or the root side in the hood, the mounting work is difficult. However, in this example, the seal member 60
Since it is mounted in the opening 42 at the tip of the tubular body 41 that accommodates the female side terminal fitting, the mounting work becomes easy.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a female connector to which a waterproof rubber ring according to an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view of the female connector.

FIG. 3 is a partially cutaway perspective view of a male connector corresponding to the female connector.

FIG. 4 is a partially cutaway perspective view of a female connector according to a modification.

FIG. 5 is a partially cutaway perspective view of a male connector corresponding to the female connector.

FIG. 6 is a partially cutaway perspective view of a female connector to which another waterproof rubber ring is applied.

FIG. 7 is an exploded perspective view of the female connector.

FIG. 8 is a partially cutaway perspective view of a male connector corresponding to the female connector.

FIG. 9 is a partially cutaway perspective view of a female connector according to the modification.

FIG. 10 is a partially cutaway perspective view of a male connector corresponding to the female connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Female side connector 11 ... Cylindrical part 20 ... Male side connector 21 ... Opening 22 ... Hood part 30 ... Seal member 31 ... Private room seal part 32 ... Seal part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenji Tsuji 1-1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd.

Claims (2)

[Claims] 1. A cylindrical protruding portion of a first member is inserted into an opening of a second member, and a ring-shaped sealing member is interposed between an inner peripheral surface of the opening and an outer peripheral surface of the protruding portion. A water-tight surface to form a watertight surface, wherein the first member includes a plurality of protruding portions, the second member also includes a plurality of openings, and the sealing member of the first member has a plurality of protruding portions. A cylindrical first seal portion that surrounds the peripheral edge of the part and forms a waterproof surface on the inner peripheral surface and the outer peripheral surface, and one end of each first seal portion is planarly connected and a waterproof surface is formed on the outer peripheral surface. A waterproof rubber ring, comprising: two seal portions, and a dish-shaped recess capable of forming a watertight surface at a peripheral portion by inserting the second seal portion into an opening surface of the second member. 2. The waterproof rubber ring according to claim 1, wherein a cap-shaped retaining member is attached to a tip of the protruding portion after the first seal portion is attached, and a rear end of the retaining member. A waterproof rubber ring, wherein an edge portion of the waterproof rubber ring contacts the front end surface of the first seal portion to prevent the waterproof rubber ring from coming off.