JPH0427787Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a locking device for preventing loosening of a closing cap attached to a container opening or a cap for fastening a spouting device.

[Conventional technology]

As a conventional means of preventing reverse rotation of the cap, Jitsukasho
There are Japanese Utility Model Publication No. 58-70356, Japanese Utility Model Publication No. 118759, Japanese Utility Model Publication No. 53-27645, Japanese Utility Model Publication No. 53-27644, etc.

The thing in the above-mentioned Utility Model Application Publication No. 58-70356 is shown in Fig. 5.
As shown in FIG. 6, in a case where the screw 12 of the cap 10 is screwed onto the spout portion 2 fitted to the mouth portion of the container 1, a sealing wall ratchet 22 provided on the sealing wall 21 of the spout portion 2 is attached. In addition, the cap side latches 24 of the cap 10 are engaged to prevent the cap 10 from rotating in the opposite direction, and when the cap 10 is to be rotated in the reverse direction, the tear portion 23 is torn and the cap 10 is rotated.

As shown in FIGS. 7 and 8, the device disclosed in Japanese Utility Model Application Publication No. 56-118759 has a container recess 27 formed in the mouth barrel 2 of the container 1, and a base 29 of the trigger type sprayer 14. The cap 10 is screwed onto the mouth tube part 2 from the outside of the base part 29 by fitting the base convex part 30 so as not to rotate.

The container with a safety cap described in the above-mentioned Japanese Utility Model Publication No. 53-27645 has a cap screwed onto the mouth and neck of the container and fixed to the mouth through a locking mechanism of an elastic ring. To open the cap, the elastic ring is pressed to release the locking device and the cap is rotated.

The container with a safety cap described in the above-mentioned Japanese Utility Model Publication No. 53-27644 has a cap screwed onto the mouth and neck of the container and fixed to the mouth and neck through a locking mechanism of an annular body. To open the cap, the annular body is pushed upward against the elastic engagement piece to release the locking device and the cap is rotated.

[The problem that the idea attempts to solve]

The devices shown in FIGS. 5, 6, and 6 are suitable for sealing the cap 10, but are inconvenient for reuse because the tear portion 23 is torn.

Furthermore, in the case shown in FIGS. 7 and 8, the atomizer 14 is formed so as not to rotate with the base protrusion 30 fitted into the container recess 27.
Although the cap 10 is prevented from rotating together with the rotation of the cap 4, since the rotation of the cap 10 is not directly restricted, it cannot be said to be a sufficient mechanism for preventing the cap from loosening.

And, Utility Model Publication No. 53-27645 and Utility Model Number 53
In the container with a safety cap described in Publication No. 27644, the cap is rotated by pressing the elastic ring or pushing the annular body upward against the elastic engagement piece to release the locking device. The cap is designed so that the cap cannot be opened unless two operations are performed at the same time.

The container with a safety cap is excellent as a container with a safety cap that cannot be opened by children, etc., for storing medicines and the like.

However, this is not a safe container with a cap that prevents children from taking out the contents, but is simply a cap loosening device, and the operation for opening the cap is complicated and troublesome.

This invention was made in view of the above matters,
To provide a cap locking device for preventing loosening which can be unscrewed by a simple operation from a cap equipped with a loosening prevention device and can be reused.

[Means to solve the problem]

The present invention is a device in which a cap 10 can be screwed onto a mouth barrel 2 of a container 1 with a screw 12.
A cutout hole 4 is formed in the peripheral edge of the locking plate 3 placed on the mouth tube part 2, the outside of the cutout hole 4 is defined as a flexible peripheral edge 5, and the locking plate is locked on the outside of the flexible peripheral edge 5. A cap 10 is provided with protruding plate-side ratchet teeth 6 and is screwed onto the mouth barrel portion 2 of the container 1 on which the locking plate 3 is placed. , a cap-side ratchet tooth 11 protruding inward is provided, and the locking plate-side ratchet tooth 6 and the cap-side ratchet tooth 11 rotate in the direction in which the screw 12 of the cap 10 is tightened, but in the opposite direction. are formed so that the teeth mesh with each other to form the meshing surfaces 6a and 11.
a, and at least one of the engaging surfaces 6a, 11a is formed to be slightly inclined in a direction that allows the locking plate side ratchet teeth 6 to be pushed inward by rotation of the cap 10 in the opposite direction. It was used as a locking device for the cap.

[Effect]

In the present invention, when the locking plate 3 is placed on the mouth barrel part 2 of the container 1 and the cap 10 is screwed onto the mouth barrel part 2, the cap side ratchet teeth 11 of the cap 10 are connected to the locking plate side ratchet 6 and the slope. Moreover, since the locking plate-side ratchet teeth 6 are provided on the outside of the flexible peripheral edge 5, the cap-side ratchet teeth 11 are able to contact the locking plate while bending the flexible peripheral edge 5. The cap 10 is screwed onto the mouth barrel portion 2 of the container 1 by lightly riding over the side ratchet teeth 6.

When removing the cap 10 from the mouth part 2,
When the cap 10 is rotated in the opposite direction, there is resistance because the meshing surface 11a of the cap side ratchet tooth 11 meshes with the meshing surface 6a of the locking plate side ratchet tooth 6, but if you apply strong force, the meshing surface 6a,
11a is slightly inclined, the locking plate side ratchet teeth 6 are pushed inward by the cam action, the flexible peripheral portion 5 is bent, the ratchet teeth are disengaged, and the cap 10 can be removed by rotating in the opposite direction. I can do it.

〔Example〕

1 to 3 show an embodiment of the present invention, in which a liquid suction pipe 7 is provided protruding from the lower surface of a locking plate 3 placed on the mouth tube portion 2 of the container 1, and A fitting tube 8 is protruded from the fitting tube 8, and a passage tube 9 is provided inside the fitting tube 8.
is provided, and the passage cylinder 9 communicates with the liquid suction pipe 7. A cutout hole 4 is provided at the peripheral edge of the locking plate 3.
The outside of the cutout hole 4 is formed as a flexible peripheral edge 5, and locking plate-side ratchet teeth 6 are provided protruding from the outside of the flexible peripheral edge 5.

A cap 1 is screwed onto the mouth barrel part 2 of the container 1 from the outside of the locking plate 3 placed on the mouth barrel part 2.
0 is provided with a screw 12 on the inside, and
Cap side ratchet teeth 11 projecting inward are provided around the inner upper portion, and a through hole 13 is formed in the top plate of the cap 10.

The locking plate side ratchet teeth 6 and the cap side ratchet teeth 11 are connected to the screw 12 of the cap 10.
Engagement surfaces 6a and 11a are formed such that the teeth rotate in the direction of closing, but teeth engage in the opposite direction, and these engagement surfaces 6a and 11a are connected to the cap 1.
The locking plate side ratchet teeth 6 are formed to be slightly inclined in such a direction that the locking plate side ratchet teeth 6 can be pushed inward by rotation in the opposite direction.

Even when the ratchet teeth are engaged, if a larger force in the opposite direction is applied, the flexible peripheral portion 5 is bent and the ratchet teeth are disengaged. Furthermore, by changing the slope of the meshing surfaces of the ratchet teeth, the cap 10
The force required to rotate it in the opposite direction becomes smaller.

Then, the end face of the mouth barrel part 2 of the container 1 and the locking plate 3
By selecting an appropriate material with a large coefficient of friction, it is possible to prevent the mouth tube part 2 and the locking plate 3 from rotating relative to each other, but if the end face of the mouth tube part 2 and the locking plate 3 are not rotated, Even if packing with a large friction coefficient is inserted between the plate 3 and the plate 3, the same effect can be obtained. Further, in this embodiment, the base of the trigger type sprayer 14 is fitted into the fitting cylinder 8 of the locking plate 3, but other liquid spouting tools may be attached.

Figures 4A, B, and C show other embodiments, in which the locking plate 3 is formed into a disk shape, and the cap is also a closed type cap 10b with no through hole formed in the top plate. . Then, a spout recess 16 is formed in the spout 2 of the container 1, and a protrusion 15 provided on the locking plate 3 is fitted into the spout recess 16.
and the locking plate 3 are prevented from rotating relative to each other.

[Effect of idea]

In the present invention, a cutout hole 4 is provided at the peripheral edge of the locking plate 3, and the outside of the cutout hole 4 is made into a flexible peripheral edge 5.
A locking plate side ratchet tooth 6 is provided on this flexible peripheral portion 5, and meshing surfaces 6a, 11a where the locking plate side ratchet tooth 6 and the intercap ratchet tooth 11 mesh are provided.
is formed so as to be inclined in such a direction that the locking plate side ratchet teeth 6 can be pushed inward by rotation of the cap 10 in the opposite direction.

Therefore, even if a force is applied to the cap 10 screwed onto the mouth barrel 2 of the container 1 in the direction of unscrewing the cap, the engaging surfaces 6a, 11 of the ratchet teeth
Rotation is prevented by a, and the cap 10 does not loosen.

When unscrewing the cap 10, rotate the cap with great force in the direction of unscrewing.
Since the cap 10 can be unscrewed, the operation for unscrewing the cap is easy.

[Brief explanation of drawings]

Figures 1A and B are partially fragmented and exploded perspective views showing an embodiment of the present invention, Figure 2 is a partial view showing its operating state, Figure 3 is an assembled view, and Figures 4A, B, C
5 is a half-cut sectional view of the conventional example, FIG. 6 is a partial perspective view thereof, FIG. 7 is a partially sectional front view of another conventional example, and FIG. 8 is an exploded perspective view of another embodiment. A, B
is an exploded perspective view of a portion thereof. 1... Container, 2... Mouth part, 3, 3a, 3b...
... Locking plate, 4 ... Cutout hole, 5 ... Flexible peripheral portion, 6
...Ratchet teeth on the locking plate side, 6a, 11a...Matching surface, 10, 10a, 10b...Cap, 11
...Ratchet teeth on the cap side.

Claims (1)

[Scope of utility model registration request] A cutout hole 4 is formed in the peripheral edge of the locking plate 3 placed on the mouth barrel part 2 of the container 1, and the outside of the cutout hole 4 is defined as a flexible peripheral edge 5. A cap 10 is provided with protruding locking plate-side ratchet teeth 6 on the inside thereof, and is screwed onto the mouth barrel portion 2 of the container 1 on which the locking plate 3 is placed. Cap-side ratchet teeth 11 are provided around the upper part and protrude inward, and the locking plate-side ratchet teeth 6 and the cap-side ratchet teeth 11 rotate in the direction in which the screw 12 of the cap 10 is tightened, but in the opposite direction. Formed so that the teeth mesh in the direction of
The meshing surfaces 6a, 11a are formed, and the meshing surfaces 6a, 11a are formed.
A cap locking device in which at least one of the caps 11a is slightly inclined in such a direction that the locking plate side ratchet teeth 6 can be pushed inward by rotation of the cap 11 in the opposite direction.