JPS6031626Y2 - liquid container stopper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stopper for a liquid container that is screwed onto a liquid injection portion of a container body and opens and closes the liquid injection port of the container body by rotation.

When a portable liquid container with an exposed stopper is hung on a shoulder strap or carried horizontally, with conventional products, if the stopper rotates due to the shock of hitting an object, the container body may There was a danger that the injection port would open and the hot water inside would instantly flow out.

There is also a similar danger when the stopper is caused to rotate due to a child's mischief.

The purpose of the present invention is to correct the drawbacks of the above-mentioned conventional examples. In the stopper of a liquid container to be opened and closed, the rotary operating body 5 is connected to the stopper main body 4.
A switching means 6 is disposed between the stopper body 4 and the rotating operation body 5 to switch the two from one state of free rotation or integral rotation to the other state. It is characterized by

The present invention will be explained in detail below based on embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 3, the present invention is applied to a stopper A of a portable metal thermos flask.

The container body 1 has a shoulder member 8 made of synthetic resin at the upper end of a vacuum double container 7 made of stainless steel, and a bottom member 9 made of synthetic resin at the lower end.
are force-fitted and fixed to each other, and rings 10 and 11 are fixed to the straps between the shoulder member 8 and the vacuum double container 7 and between the bottom member 9 and the vacuum double container 7, respectively.

The shoulder member 8 has a trumpet mouth portion 12 and a pillar support cylinder portion 13, and constitutes the liquid injection portion 2 of the container body 1.

A thread 14 is provided on the inner surface of the stopper support cylinder part 13, and as shown in FIG. recess 2
4 and 24 are provided as liquid passages.

The vacuum double container 7 consists of an outer cylindrical part 16 and an inner cylindrical part 17, which are joined by welding at their respective upper edges 16a and 17a.

A liquid injection port 3 of the container body 1 is formed at the upper end of the inner cylinder portion 17 .

. The stopper A, which is screwed onto the liquid injection part 2 of the container body 1 and opens and closes the liquid injection port 3 of the container main body 1 by a rotational operation, has a stopper body 4 made of synthetic resin and a rotation operating body 5 made of synthetic resin. It consists of

The plug main body 4 is formed by integrating a support plate part 19 into a pillar part 18 by force fitting, and the pillar part 18 has a morning glory-shaped upper part 20 and a middle part having a thread 21 formed on the outer periphery to be screwed into the thread 14. 2
2 and a lower part 23 inserted into the liquid injection port 3.

A cylindrical portion 25 for rotatably supporting the rotary operating body 5 and an outward flange 26 connected to the lower end of the cylindrical portion 25 are provided at the upper end of the upper stage portion 20 .

A slightly protruding ridge 27 is provided around the outer peripheral surface of the cylindrical portion 25 at an intermediate height position.

The rotation operation body 5 is formed in the shape of a short cylinder with a top, and has an inward flange 29 slightly protruding from the lower end edge of the side peripheral wall portion 28.
On the other hand, a long hole 31 is provided in the top plate portion 30.

The rotation operating body 5 is rotated by the plug body 4 by loosely fitting its inward flange 29 into an annular groove formed between the protrusion 27 of the cylindrical portion 25 and the outward flange 26. Mounted as possible.

Note that due to the loose fitting, the rotation operating body 5 is connected to the cylindrical portion 25.
When it is forcibly fitted, the side peripheral wall 28 opens in the diametrical direction due to the elasticity of the synthetic resin, and the inward flange 29 easily overcomes the protrusion 27 and is accommodated in the annular groove below it. be.

Further, the vertical movement of the inward flange 29 is restricted by the protrusion 27 and the outward flange 26.

A space is formed between the support plate part 19 of the stopper body 4 and the top plate part 30 of the rotary operation body 5 located above the support plate part 19, and a slider 32 made of synthetic resin is arranged in this space. There is.

The slider 32 is restrained in its left and right movement by a pair of guide ribs 33 and 33 protruding from the lower surface of the top plate portion 30, and is arranged to be able to move forward and backward (FIG. 3).

While an engaging protrusion 34 is provided at the tip of the slider 32,
A bending elastic part 35 is formed at the rear part, and a positioning protrusion 36 is provided on the top surface of the bending elastic part 35.

Further, on the top surface of the central portion of the slider 32, an operating convex portion 37 is formed which is exposed to the outside through the elongated hole 31.

On the other hand, on the inner circumferential surface of a cylindrical vertical wall 38 formed on the periphery of the support plate portion 19 of the plug body 4, a large number of engagement ribs 39, 39, . . . that engage with the engagement protrusion 34 are provided. ... has been established.

Furthermore, positioning recesses 4G and 41 are formed on the lower surface of the top plate portion 30 of the rotary operating body 5 to engage with the positioning protrusion 36 to determine the forward and backward positions of the slider 32.

Thus, as shown in FIG. 1, when the slider 32 is set in the retracted position, the engaging protrusion 34 and the engaging ribs 39, 39, . . . are in a non-engaging relationship. ,
The rotation operating body 5 is supported by the stopper body 4 in a freely rotating state.

As a result, even if the rotary operation body 5 is rotated, the stopper main body 4 remains stationary, and the liquid injection port 3 remains closed by the stopper A.

Next, when the slider 32 is advanced and set to the forward position, the engagement protrusion 34 and the engagement rib 39 engage with each other,
As the rotation operating body 5 rotates, the stopper body 4 also rotates together with the rotation.

Therefore, the liquid injection port 3 can be opened by rotating the rotating operating body 5.

In addition, in Figure 1, 42.43 is Patsukin, 44 is O
The ring, 45 is a heat insulating material, and 46 is a tip.

In the embodiment described above, the switching means 6 for switching the relationship between the stopper main body 4 and the rotation operating body 5 from one of the free rotation state and the integral rotation state to the other state is provided by the slider 32 and the engagement rib 39. , 39, etc., and the slider 32 is configured to be able to stop in each state.

However, in order to further improve safety, the stopper main body 4 and the rotation operating body 5 are normally placed in a freely rotating state, and can be set to an integrally rotating state only when necessary by operating the switching means 6. It can also be configured as follows.

In the embodiment shown in FIGS. 4 and 5, only when the slider 32a is biased in the non-engaging direction P by the compression spring 47 and the waist slider 32a is operated in the engaging direction Q against the compression spring 47, The rotation operation body 5 and the stopper body 4 are placed in a state of integral rotation, and the stopper body 4 is rotated by the rotation of the rotation operation body 5, so that the liquid injection port 3 can be opened. .

In this embodiment, the engagement rib 39a is connected to the support plate portion 1 of the plug body 4.
An engaging protrusion 34a integrally formed at the center of 9 and engaged with the engaging protrusion 34a
is provided at the rear end of the slider 32a.

Note that 48 is a spring support piece protruding from the lower surface of the top plate portion 30 of the rotating operation body 5, and this spring support piece 48 and the slider 32a
The compression spring 47 is interposed between the spring support wall 49 and the spring support wall 49 .

Further, in this embodiment, it goes without saying that the rotary operating body 5 is rotatably supported by the stopper body 4.

Note that 57 is a protrusion for holding the compression spring 47.

In the embodiment shown in FIG. 6, the rotary operating body 5 is supported by the stopper body 4 so as to be rotatable and movable up and down, and the rotary operating body 5 is attached upward by a compression spring 50 interposed between the two. It is strong.

The inner circumferential surface of the side peripheral wall 28a of the rotary operating body 5 and the outer circumferential surface of the upper end cylindrical portion 25a of the stopper main body 4 are in contact with each other only when the rotary operating body 5 is pressed downward against the compression spring 50. Engaging engagement teeth 51,52 are provided.

Note that 53 is a flange that engages with the inward protrusion 54 of the rotary operating body 5 to restrict upward movement of the rotary operating body 5.

In this embodiment, the switching means 6 is connected to the engaging teeth 51, 52.
, a compression spring 50, etc.

The embodiment shown in FIG. 7 is an improvement on the embodiment shown in FIGS. 4 and 5, and when rotating the rotation operating body 5 in the closing direction, the slider 32a is operated in the Q direction. The main body 4 of the stopper can be rotated in the closing direction without need.

For this reason, a large number of ratchet teeth 55, 55, etc. are integrally formed on the inner surface of the vertical wall 38 located on the outer periphery of the plug body 4, and a ratchet-shaped retainer is provided on the portion of the slider 32a that abuts the vertical wall 38. A joint 56 is formed at the waist of the plug body 4
and the slider 32a are engaged in a relationship allowing free rotation in one direction.

Of course, when the rotation operating body 5 rotates in the opening direction, it is in a free rotation relationship with the closure body 4, and as in the embodiment shown in FIGS. 4 and 5, the slider 32a is moved in the Q direction. The rotation of the rotation operating body 5 is transmitted to the stopper body 4 only when operated.

The present invention can be configured in various ways other than those shown in the above embodiments.

For example, the switching means 6 may be connected to the slider 32 and the engaging rib 3.
Instead of being configured in combination with 9, it may be configured by a combination of a rotation lock member and an engaging rib.

Since the present invention has the above-mentioned configuration, if the switching means 6 is set in the free rotation state, even if the rotation operating body 5 rotates due to shock from hitting an object or mischief by a child, the stopper body 4 does not rotate, and as a result of being able to maintain the liquid injection port 3 in a closed state,
Accidents such as the boiling water inside being accidentally leaked can be prevented.

The present invention can be implemented not only as a stopper for a portable liquid container, but also as a stopper for a stationary liquid container.

Furthermore, even when the plug body is protected by an outer tip, by configuring the plug body as in the present invention, safety can be ensured when the outer tip is removed.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view of an embodiment of the invention, Figure 2 is an exploded perspective view of its main components, Figure 3 is a cross-sectional view of the switching means, and Figure 4 is the invention of the invention. FIG. 5 is an exploded perspective view of another embodiment of the present invention, FIG. 6 is a longitudinal sectional front view showing the main parts of another embodiment of the present invention, and FIG. 7 is a still further embodiment of the present invention. FIG. 2 is an exploded perspective view of main parts of the embodiment. 1...Container body, 2...Liquid injection part, 3.
・・・・・・Injection port, 4・・・・Bung body, 5・・・・
...Rotating operation body, 6...Switching means.

Claims (1)

[Scope of utility model registration request] In a liquid container stopper that is screwed onto the liquid injection part of the container body and opens and closes the liquid injection port of the container body by a rotation operation, the rotation operation body is rotatably supported by the stopper body, and the stopper body and 1. A closure for a liquid container, characterized in that a switching means is provided between the rotation operating body and the rotation operation body for switching the two from one state of a free rotation state or an integral rotation state to the other state.