JPH088752Y2 - Liquid container inner stopper opening / closing device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner plug opening / closing device for a liquid container such as a hand pot.

[0002]

2. Description of the Related Art An inner stopper of a liquid container is screwed into an opening of a shoulder body of the container to seal the inner container. When the liquid in the inner container is discharged, a valve provided on the inner container is closed. 2. Description of the Related Art An inside plug opening / closing device for a liquid container, which is opened by operating a push button and in which the entire container is tilted to discharge the liquid from the beak of the shoulder, has been widely known.

Further, in this case, the valve is opened and closed by the first push-down of the push button to hold the open state, and the valve is closed by the second push-down of the push button. Is commonly used in a conventional handpot as a so-called push-push mechanism (see, for example, Japanese Utility Model Publication No. 58-30023).

In the inside plug opening / closing device employing such a push-push mechanism, the push button is vertically movably inserted into the guide hole of the inside plug cover, and the lower end of the push button is engaged with the valve opening / closing mechanism. Is taken.

In this case, the push button is formed in a cylindrical shape so that the outer diameter thereof matches the inner diameter of the guide hole, and the push button has an engaging projection for preventing the push button from coming off. Since the push button is provided with the engaging protrusions as described above, the push button is assembled by inserting it from the inside of the plug cover into the guide hole.

[0006]

As described above, the push button is inserted from the inside of the stopper cover into the guide hole so that its head is exposed on the upper surface of the stopper cover. The outer diameter of is limited to the inner diameter of the guide hole and cannot be larger than that.

However, from the standpoint of usability and design, when it is required to make the head of the push button larger than the inner diameter of the guide hole, the push button is pushed from the outside of the plug cover, contrary to the conventional case. Must be inserted through. Then, the protrusion for preventing the push button provided on the outer peripheral surface of the push button becomes a problem.

If the projection is made small, the work of inserting the push button into the guide hole is easy, but the retaining function becomes insufficient. On the contrary, if the projection is made large, it is difficult to pass it through the guide hole even if the retaining function is sufficient.

Therefore, in the present invention, when the head portion of the push button is formed larger than the inner diameter of the guide hole, it is easy to insert the push button into the guide hole of the stopper cover, and yet to ensure the retaining action. And

[0010]

In order to solve the above problems BRIEF SUMMARY OF THE INVENTION, the plug cover this invention is provided in the inner plug integrally guide
A hole is provided, a push button is inserted into the guide hole so that it can move up and down, and a valve for opening and closing the internal passage is installed in the inside plug.
Install a valve opening / closing mechanism between the valve and the push button.
The push operation added to the above push button.
In an inner stopper opening / closing device for a liquid container in which a vertical shaft for transmitting to a valve is provided in the valve opening / closing mechanism, the push button is formed in a tubular shape with an open lower end, and the push button has an elastic lower end.
Is provided with a retaining projection having a required height on the outer peripheral surface of the lower end thereof , and the engaging step portion engages with the retaining projection.
The formed in the inner diameter surface of the guide hole, the push button
Insert while elastically deforming the lower end from above the guide hole
By engaging the retaining projection with the engaging step portion.
The upper and lower shafts of the valve opening / closing mechanism are inserted into the lower end of the push button with no gap or with a required gap.

[0011]

The above-mentioned retaining projection easily passes through the guide hole due to the fitting gap with respect to the guide hole of the push button and the elastic deformation of the material, and further engages with the engaging step portion of the guide hole to prevent retaining. Formed at the height expected. Also, if there is no gap between the vertical shaft and the push button inner diameter surface, or if the push button is pulled out and the lower end of the push button contracts, the outer diameter surface of the vertical shaft contacts the inner diameter surface of the push button. It is set so that there is a gap in contact with each other to prevent the reduction beyond a certain level.

Therefore, the push button is inserted into the guide hole from the outside of the plug cover with a relatively small resistance. Further, even if a force in the pulling direction acts on the push button and the lower end portion of the push button shrinks, the inner diameter surface of the push button contacts the outer diameter surface of the vertical shaft, so that the diameter of the push button is prevented from being reduced more than a certain amount, and the push button is prevented.

[0013]

EXAMPLE The liquid container of the example is a hand pot whose appearance is shown in FIG. As shown in FIG. 2, this handpot has a shoulder body 2 having an outer shape of a truncated cone at the upper end of a body 1.
The bottom body 3 is attached to the lower end, and the mouth of the vacuum double bottle 4 accommodated therein is pressed against the opening 5 of the shoulder body 2 through the packing 6. A threaded portion 7 is formed on the inner diameter surface of the opening 5, and a lateral hole 8 that laterally penetrates the opening 5 communicates with the inside of a beak 9 provided on the shoulder body 2.

An inner plug 10 which is screw-fitted to the above-mentioned screw portion 7.
A plug packing 11 is attached to the outer diameter surface of the (see FIG. 3),
The opening 5 is closed by pressing it against the seal step 12 on the inner diameter surface of the opening 5.

A liquid passage 13 for communicating the vacuum double bottle 4 with the beak 9 is formed inside the inner stopper 10, and an opening of the liquid passage 13 on the vacuum double bottle 4 side is opened and closed. The valve 14 is mounted so as to be vertically movable. The valve 14 is biased upward by a spring 15 and pressed against a valve seat 16.

A stopper cover 17 having a taper similar to that of the shoulder body 2 is integrated with the upper portion of the inner stopper 10 by forcibly fitting. The lower end of the plug cover 17 matches the upper end of the shoulder body 2, and a conical outer shape is formed by both. A guide hole 18 is formed at the upper end of the stopper cover 17 by a cylindrical portion that hangs downward from the upper end. Its guide hole 18
The engagement step portion 19 is formed on the inner diameter surface of the
The upper part has a small diameter.

The push button 21 has an upper half portion formed in an inverted triangular pyramid shape and a lower half portion formed in a cylindrical shape. The cylindrical portion is vertically movably inserted into the guide hole 18. A plurality of vertical slits 22 are provided in the lower portion of the push button 21 (see FIG. 4), and a retaining projection 23 protruding outward is formed between the slits 22.

When an elastic material is used,
A thin film may be formed in the slit 22 or the slit 22 may be omitted.

The retaining projection 23 engages with the engaging step portion 19 of the guide hole 18 to prevent the push button 21 from coming off. Further, the lower surface of each retaining projection 23 is tapered.

The protrusion height of the retaining projection 23 is such that when the taper surface of the lower surface thereof is pressed against the upper end of the guide hole 18 and a required force is applied to push it in, the push button 21 is pressed.
The lower end of the guide shrinks due to elastic deformation of the material,
The height is set to pass through.

As described above, the height of the retaining projection 23 is limited and cannot be increased so much.
Simply engaging this with the engaging stepped portion 19 is not sufficient for the retaining action. Therefore, the upper end of the vertical shaft 24 is inserted inside the lower end of the push button 21.

The outer diameter surface of the vertical shaft 24 and the push button 21.
There is no gap with the inner diameter surface of the push button 21
Even if the lower end portion of the
The inner diameter surface of the push button 21 comes into contact with the outer diameter surface of the vertical shaft 24 before it is disengaged from the above, so that there is a gap that can prevent further reduction. The upper end of the vertical shaft 24 is engaged with the lower ends of ribs 25 provided on the inner diameter surface of the push button 21.

The valve 14 of the valve mechanism 26 is composed of a medium-mechanism shaft 27 a fixed cylindrical plug 10, the rotation shaft 28及beauty on the lower shaft 24 fixed to the upper end of the valve 14. These members constitute a well-known push-push mechanism (see the above-mentioned utility model publication). Push button 21 push
The valve operation is performed through the vertical shaft 24 of the valve opening / closing mechanism 26.
14 is transmitted.

In addition, the outer diameter surface of the push button 21 is
A shallow groove 29, which serves as a mark, is formed in a portion higher than the upper end of the plug cover 17 in the valve closed state, and when the groove 29 is visible, it is in the valve closed state. If this groove 29 enters the guide hole 18 and cannot be seen from the outside, the valve is opened. Indicates a state.

It is possible to fit a conspicuous colored member in the groove 29, or to attach a thin tape in place of the groove 29 or draw a colored line.

Further, vertical ribs 31 are provided on the outer surface of the stopper cover 17 at fine intervals over the entire circumference (see FIG. 4) to prevent slipping of the hand when the inner stopper 10 is removed or tightened. I am trying.

The hand pot of the embodiment is as described above. When assembling the inner plug opening / closing device, the push button 21 is forcibly inserted into the guide hole 18 from the outside of the plug cover 17 to prevent it from coming off. The protrusion 23 is engaged with the engagement step 19 of the guide hole 18, and then the upper end of the vertical shaft 24 of the opening / closing mechanism 26 is inserted into the lower end of the push button 21.

The inner plug opening / closing device assembled in this manner is operated by the valve opening / closing mechanism 26.
The valve is opened by the first pushing operation and the valve is closed by the second pushing operation.

When the liquid is directly put in or taken out from the vacuum double bottle 4, the portion of the stopper cover 17 is rotated to remove it together with the inner stopper 10.

[0030]

As described above, the inside plug opening / closing device of the present invention has the upper and lower shafts of the valve opening / closing mechanism at the bottom of the push button.
The lower end of the push button is free to
It can be deformed and is used to prevent push buttons from coming off.
By forming the protrusion relatively low, the push button
Can be easily inserted from above the guide hole.
Also, after inserting it, the valve opens and closes inside the lower end of the push button.
Push by inserting the upper end of the vertical axis of the mechanism
Since the diameter of the lower end of the button is restricted
Can be planned. Therefore, make the push button head larger than the inner diameter of the guide hole and insert it from above the guide hole.
If it cannot be put in , it will not hinder the assembly work or the retaining action.

[Brief description of drawings]

FIG. 1 is a perspective view of a hand pot.

FIG. 2 is a sectional view of the above.

FIG. 3 is a partially enlarged sectional view of the above.

FIG. 4 is a partially exploded perspective view of the above.

[Explanation of symbols]

1 Body 2 Shoulder 3 Bottom 4 Vacuum Double Bottle 5 Opening 6 Packing 7 Screw 8 Lateral Hole 9 Beak 10 Inner Plug 11 Plug Packing 12 Seal Step 13 Liquid Passage 14 Valve 15 Spring 16 Valve Seat 17 Plug Cover 18 Guide Hole 19 Engagement step 21 Push button 22 Slit 23 Detent retaining projection 24 Vertical shaft 25 Rib 26 Valve opening / closing mechanism 27 Mechanical shaft 28 Rotating shaft 29 Groove 31 Rib

Claims (1)

[Scope of utility model registration request] 1. A guide hole is formed in a stopper cover provided integrally with the inner stopper.
A push button is inserted into the guide hole so that the push button can move up and down, and a valve for opening and closing the internal passage is provided in the inner plug .
Install a valve opening / closing mechanism between the valve and the push button to
The push operation applied to the push button is applied to the above valve.
In an inner stopper opening / closing device for a liquid container in which a vertical axis for transmission is provided in the valve opening / closing mechanism, the push button is formed in a tubular shape with an open lower end, and elasticity is imparted to the lower end of the push button.
At the same time, a retaining protrusion having a required height is provided on the outer peripheral surface of the lower end portion thereof, and the engaging step portion engaging with the retaining protrusion is formed as described above.
Provided on the inner diameter surface of the guide hole, the lower end of the push button
Is inserted from above the guide hole while elastically deforming.
To engage the retaining projection with the engaging step portion.
Because the valve upper end of the vertical axis of the opening and closing mechanism, the inside plug switchgear of the liquid container, characterized in that inserted with no gap or required clearance to the lower end inside of the push button.