JP2810652B2 - High pressure gas container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a high-pressure gas container.

[0002]

2. Description of the Related Art Conventionally, a high-pressure gas container in which a cap is detachably mounted on a neck fixed to the top of a container body is well known, as shown in FIG. Is a neck, 23 is a cap, 24 is a valve detachably attached to the neck, and the cap 23 is a neck.
It is screwed to 24 by a screw portion 26.

[0003]

However, such a high-pressure gas container is rotated with the cap 23 when the cap 23 is removed and attached at the time of filling or discharging the gas, and is screwed to the neck 22. The engagement must be released, and this operation is extremely difficult, and in addition, there are problems that the mounting may not be performed completely.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the conventional high-pressure gas container, and to easily remove and attach the cap at the time of filling or discharging the gas, and at the same time, mount the cap. Is to provide a high pressure gas container that is completely performed.

[0005]

According to the present invention, in order to achieve the above-mentioned object, in a high-pressure gas container, the invention according to claim 1 is characterized in that a radial locking pin is provided on an outer periphery of an upper portion of a neck. A locking notch is provided at a position facing the locking pin at the opening edge of the cap, and the locking notch is formed at a vertical notch into which the locking pin can be fitted, and at an upper end of the vertical notch. A laterally continuous notch, a concave portion is provided on the outer periphery of the upper portion of the neck, and a projecting portion projecting in the radial direction is formed at the opening edge of the cap. The projecting portion is engaged with the concave portion of the neck. It is characterized in that a turning cam for detaching is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, a locking spring for locking the rotating cam is provided on the projecting portion of the cap.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the present invention shown in FIGS. 1 to 5, 1 is a container body, 2 is a neck, and 3 is a cap, which are configured in the same manner as the above-mentioned conventional one.

In the above-mentioned structure, a locking pin 4 in the radial direction is provided on the outer periphery of the upper portion of the neck 2, and a locking notch 6 is provided at a position facing the locking pin 4 on the opening edge of the cap 3. The locking notch 6 has a vertical notch 7 into which the locking pin 4 can be fitted, and a horizontal notch 8 connected to the upper end of the vertical notch 7 in a horizontal direction. A projection 9 which is provided on the outer periphery and which protrudes in the radial direction at the opening edge of the cap 3
The protrusion 11 is provided with a rotating cam 12 which is engaged with and disengaged from the recess 9 of the neck 2. The rotation cam 12 is rotated by an operation handle 14 attached to a rotation shaft 11 that is rotatably supported by the protrusion 11. In this embodiment,
Although a pair of locking pins 4 and recesses 9 of the neck 2 are provided symmetrically in the diametric direction, this number is not limited to this, and may be other numbers, and thereby the cap 3 The number of the locking notch 6 and the number of the protruding portions 11 are also corresponding numbers.

A description will be given of a state in which the cap 3 is mounted on the neck 2 in the above-described configuration. As shown in FIG. 3, the axis XX of the vertical notch 7 of the locking notch 6 of the cap 3 is positioned so as to pass through the center of the locking pin 4 of the neck 2. Then, by operating the operation handle 14, the rotating cam 12 is moved so that its cam surface is the cap 3 as shown in FIG.
The cap 3 is fitted to the neck 2 and moved down to the position shown in FIG. This downward movement causes the locking pin 4 to move upward in the vertical cutout 7.

When the locking pin 4 reaches the position facing the lateral notch 8 as shown in FIGS.
By rotating the cap 3, the locking pin 4 is displaced leftward in the lateral cutout 8 toward the longitudinal axis YY shifted laterally from the axis XX. Here, the operating handle 14 is operated to rotate the rotating cam 12 to a lateral position where its cam surface protrudes inward from the inner peripheral surface of the cap 3 as shown in FIGS. The cap 2 is engaged with the concave portion 9 of the neck 2 that has reached the position facing the rotating cam 12, and the mounting of the cap 3 on the neck 2 is completed in this manner, and the engagement of the rotating cam 12 with the concave portion 9 is performed. As a result, the cap 3 does not come off the neck 2 unnecessarily.

When the cap 3 thus mounted is removed from the neck 2, the operating handle 14 is operated to rotate the rotating cam 12 to the initial vertical position and to engage the recess 9 of the neck 2. The engagement is released, the cap 3 is rotated in the opposite direction to the above, and the locking pin 4 is displaced rightward in the horizontal cutout 8 to the axis XX of the vertical cutout 7, and the cap 3 Will be removed and removed.

In this embodiment, since the locking spring 16 for locking the rotating cam 12 is provided on the projection 11 of the cap 3, this locking spring is provided at each position shown in FIGS. A spring 16 engages and holds the pivot cam 12 in that position,
Since the rotation of the cap 3 is prevented, the cap 3 is prevented from coming off the neck 2 when it is not expected.

[0013]

The present invention is as described above. In the high-pressure gas container, the invention according to claim 1 is characterized in that a locking pin in the radial direction is protrudingly provided on the outer periphery of the upper portion of the neck, and the opening edge of the cap is opened. A locking notch is provided at a position facing the locking pin,
The locking notch has a vertical notch into which a locking pin can be fitted, and a horizontal notch connected to the upper end of the vertical notch horizontally. A protrusion protruding in the radial direction is formed at an opening edge of the cap, and a rotation cam which is engaged with and disengaged from the recess of the neck is provided on the protrusion, so that the cap can be removed and attached when gas is charged or discharged. In addition to that, after mounting, one side of the locking pin of the neck is locked in the lateral cutout of the cap, and the rotating cam provided on the cap engages with the concave portion provided on the neck. This has the effect that the cap does not come off from the neck unnecessarily.

According to a second aspect of the present invention, in the first aspect of the present invention, a locking spring for locking the rotating cam is provided on the projecting portion of the cap. A stop spring engages the rotating cam and holds it in that position,
Since the rotation of the cap is prevented, the cap is prevented from being detached from the neck when the cap is not expected.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view taken along line 1-1 in FIG. 3 in an initial state when a cap according to an embodiment of the present invention is mounted.

FIG. 2 is a plan view of the neck according to the first embodiment.

FIG. 3 is a front view showing an initial state when the cap is attached.

FIG. 4 is a vertical view taken along line 4-4 in FIG. 1;

FIG. 5 is a front view showing a final state when the cap is attached.

FIG. 6 is a longitudinal view similar to FIG. 4 of FIG. 5;

FIG. 7 is a fragmentary front view of a conventional high-pressure gas container of the same type as the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Neck 3 Cap 4 Locking pin 6 Locking notch 7 Vertical notch 8 Horizontal notch 9 Depression 11 Projection 12 Rotating cam 13 Rotating shaft 14 Operating handle 16 Locking spring

Claims (2)

(57) [Claims] 1. A high-pressure gas container in which a cap is detachably attached to a neck fixed to the top of a container body,
A locking pin in the radial direction protrudes from the upper outer periphery of the neck, and a locking notch is provided at a position facing the locking pin at an opening edge of the cap, and the locking notch is a vertical direction in which the locking pin can be fitted. It has a notch and a lateral notch continuously connected to the upper end of the vertical notch, and a concave portion is provided on the upper outer periphery of the neck, and a protruding portion protruding in the radial direction is formed at the opening edge of the cap. The high-pressure gas container is provided with a rotation cam which is engaged with and disengaged from the recess of the neck. 2. The high-pressure gas container according to claim 1, wherein a locking spring for locking the rotating cam is provided on the projecting portion of the cap.