JPS5833087Y2 - closure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a sealing device that is interposed between an opening of a container body and a cap tightened thereto to seal the container.

When sealing a container by tightening the cap to the opening of the container body (tank body) via the seal rubber, the seal rubber has a high coefficient of friction to prevent the seal rubber from being twisted and deformed due to contact with the rotating cap. A slide ring is placed over the cap to ensure smooth contact with the cap.

Conventionally, when tightening a cap onto an opening, the seal rubber and slide ring used as sealing devices were treated separately by simply stacking them over the opening, which was very inconvenient to handle. .

Therefore, it was considered to integrate the two with adhesive, but
Problems such as the reliability of the adhesive and an increase in the number of bonding steps arise,
It was not put into practical use.

The purpose of this invention is to integrate a two-part sealing device to make it easier to handle. In a sealing device consisting of a seal rubber and a slide ring placed on the surface of the seal, seven flanges are provided on the peripheral edge of the slide ring in the axial direction, and a plurality of grooves are formed in the flange, and the seven flanges are formed on the circumferential surface of the seal rubber. The slide ring is characterized in that the same number of ears as grooves are provided, and the ears are fitted into the grooves of the slide ring to integrate the two.

The present invention will be explained in detail below based on specific examples shown in FIGS. 1 to 4.

As shown in FIG. 1 showing a longitudinal section of a specific example in which the closure according to the present invention is used to seal a closed container, and FIG. 2 showing an enlarged view of part A in the same figure, the opening of the tank body 1 of the closed container is Part 1
A and a cap 2 that is tightened over the opening 1a, there are two members: a lid-shaped rubber seal 3 for maintaining the airtightness of the tank and a metal or plastic slide ring 4 for preventing deformation of the rubber seal 3. A sealing device 5 consisting of is interposed.

As shown in FIG. 2 and FIG. 3 showing a cross section taken along line B-B in the figure, a flange 4a is provided on the inner peripheral edge of the slide ring 4 of the sealing device 5 in the axial direction.
A plurality of grooves 4b are formed along the circumferential direction.

On the other hand, the inner circumferential surface of the rubber seal 3 is formed with the same number of ears 3a as the grooves 4b, and by fitting these ears 3a into the grooves 4b of the slide ring 4, both, that is, the sealing device 5 are integrated. ing.

In addition, as shown in FIG. 4, a flange 4C is provided on the outer peripheral edge of the slide ring 4 in addition to the inner flange 4a, so that when the cap 2 is properly screwed into the opening 1a, the tip will come into contact with the end surface of the opening 1a. Determine the length of flange 4C,
It is also possible to restrict the tightening force of the cap 2.

Incidentally, it is also possible to provide grooves in the flange 4C and provide ears on the outer peripheral surface of the rubber seal 3 to integrate the rubber seal 3 and the slide ring 4.

The present invention is applied, for example, to sealing an oil reservoir tank containing brake fluid for a control device of an automobile.

As described above, according to the present invention, a flange is provided on the circumferential edge of the slide ring in the axial direction, and a plurality of grooves are formed on the flange, and the same number of ears as the grooves are provided on the circumferential surface of the seal rubber. Since the ears are fitted into the grooves of the slide ring and the seal rubber and the slide ring are integrated, an easy-to-handle sealing device is obtained without impairing the function of the slide ring and without adding steps such as adhesion. Using this sealing tool will also improve the efficiency of sealing work.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of a specific example in which the present invention is applied to sealing a sealed container, Figure 2 is an enlarged view of section A in Figure 1, and Figure 3 is an enlarged view of section A in Figure 1.
4 is a sectional view taken along the line BB in the figure, and FIG. 4 is a sectional view of a portion corresponding to FIG. 2 showing another specific example. In the drawing, 1 is the tank body, 1a is the opening of the tank body,
2 is a cap, 3 is a rubber seal, 3a is an ear, 4 is a slide ring, 4a is a flange, 4b is a groove, 4C is a flange, and 5 is a sealing member.

Claims (1)

[Scope of utility model registration request] A sealing device consisting of a sealing rubber that is interposed between an opening of a container body and a cap that is tightened to seal the container, and a slide ring that is placed on the surface of the sealing rubber,
A flange is provided on the circumferential edge of the slide ring in the axial direction, and a plurality of grooves are formed on the flange, while ears of the same number as the grooves are provided on the circumferential surface of the seal rubber, and the ears are connected to the grooves of the slide ring. A sealing device characterized by fitting the two into one unit.