JPH0137559Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field This invention relates to an opening/closing device for the inner cap of a magic bottle.

(2) Prior art A magic bottle equipped with an inner stopper opening/closing device in which when pouring hot water by tilting the magic bottle, the user operates a push button with the fingertips of the hand holding the handle and opens the inner stopper in conjunction with the push button. has been known for a long time.

One type of inner cap opening/closing device is such that when a push button inserted horizontally into the shoulder of the magic bottle is pushed in, its tip pin enters the inside of the lid and engages with the inner cap rod inside the lid. There is one in which the inner stopper is opened by pressing down, and the push button is also locked.

However, according to the above configuration, when the push button is pressed in, the cover is engaged with the shoulder body via the tip pin of the push button, so the cover cannot be removed. Therefore, if you forget to return the push button after pouring hot water and try to remove the lid, the lid will not come off and you will have to return the push button beforehand, which is inconvenient.

On the other hand, there are some types that have a push button on the side of the lid and apply an urging force in the pushing back direction, but these types of inner stopper opening/closing devices do not have a locking function, so they do not allow pouring. There is an inconvenience that you have to keep pressing the push button inside.

(3) Problems that the invention aims to solve This invention takes into consideration the above-mentioned prior art.
To provide an easy-to-operate inner cap opening/closing device of a type in which a push button is provided on the side of the lid, in which the inner cap can be opened and closed and the push button can be locked and unlocked by simply pushing the push button. That is.

(4) Means for solving the problem In order to solve the above problem, this invention aims to push the push button provided on the side of the lid against the biasing force, and push a part of the push button into the inner stopper. In a magic bottle inner cap opening/closing device that opens the inner cap by engaging with the button, a pin is provided on the push button to protrude downward, and a mounting shaft parallel to the pin is provided on the lid. Loosely fit the engaging piece that engages the above pin into the holder, and with the tip of the above engaging piece facing the pin, rotate the engaging piece in a certain direction by inserting a stopper provided on the engaging piece into the mounting shaft. a first pressing means for urging the engaging piece in a direction in which the stopper is engaged with a part of the mounting shaft; and when the engaging piece is pushed down in the direction in which the pin projects. A second pressing means for urging this back in the direction is provided, and the engaging piece is opposed to the urging force of the first pressing means by engaging with the pin in a range extending from the tip of the engaging piece to one side thereof. A cam part having a curved line that is tilted by the cam part is provided, a recess is formed on the side of an engaging piece that is continuous with the cam part, and a recess is formed in the recess opposite to the open part and at the tip of the engaging piece of the recess. A cam piece is provided offset to the side edge, and the cam piece is formed to have an inclined surface that protrudes downward from the lower end of the pin in the direction in which the pin protrudes.

(5) Function In the inner cap opening/closing device configured as described above, when the push button is pushed in against the biasing force, the pin protruding from the push button engages with the cam portion of the engaging piece, and the engaging piece is attached to the mounting shaft. When the pin passes over the cam part, it fits into the recess of the engagement piece and the push button is locked. On the other hand, as the push button moves forward, the inner stopper that is partially engaged with the push button is opened.

Next, press the pushbutton again.
The pin rests on the cam piece, the engagement piece tilts in the axial direction of the mounting shaft against the biasing force in the axial direction, and the pin comes out of the recess according to the inclination of the cam piece, so that the push button is pushed back. It returns to its original state according to the biasing force in the direction. As a result, the engagement with the inner plug becomes disconnected.
The inner stopper returns and closes according to the biasing force applied to itself.

(6) Embodiment As shown in FIG. 1, the embodiment of this invention includes a shoulder body 4 fitted around the upper end opening 3 of an inner bottle 2 housed in the body 1 of the magic bottle, A lid 5 is screwed onto the shoulder body 4. An opening 6 facing the opening 3 of the inner bottle 2 is formed in the lid 5.
and the spout 8 of the shoulder body 4 through the liquid passage 7 inside the lid.
It is familiar to

The inner stopper 9 is inserted into the opening 3 of the inner bottle 2,
When the inner stopper 9 is pressed against the lower edge of the opening 6 of the lid 5, the inner stopper 9 is closed, and when the inner stopper 9 is pushed further than this, the inner stopper 9 is opened.

An inner stopper rod 10 is protruded from the inner stopper 9 and is inserted into the lid 5 so as to be freely slidable in the vertical direction, and a coil spring 11 is engaged with the inner stopper rod 10 inside the lid 5. This applies an upward biasing force to the inner stopper 9.

A push button 13 is slidably inserted along the lower surface of the cover 12 of the lid 5 from the handle 14 toward the spout 8. This push button 13 has a presser part 15 projecting upward from the handle 14 and an inclined part 1 that engages with the upper end of the inner stopper rod 10.
6 and a guide pin 17 that engages with a part of the lid 5. A coil spring 18 is attached to the guide pin 17.
is inserted to apply a biasing force in the push-back direction.

Further, a peephole 19 is provided in the center of the cover 12, and an opening/closing display plate 20 (see FIG. 2) adhered to the upper surface of the inclined portion 16 of the push button 13 faces the peephole 19.

The push button 13 has a pin 21 projecting downward, and a mounting shaft 2 parallel to the pin 21.
2 is provided on a part of the lid 5. The pin 21 is adapted to engage with an engagement piece 23 attached by a mounting shaft 22, forming a so-called double push type engagement mechanism. That is, the above-mentioned engagement piece 23 is located inside the pin 21 (the first
(see figure), and is installed so that the plate surface is horizontal.

As clearly shown in FIG. 7, the attachment portion of this engagement piece 23 is loosely fitted around the attachment shaft 22 via an elastic body 24 such as rubber, and the stopper 25 (see FIG. , Fig. 3) on the mounting shaft 22.
is engaged with the base of the shaft to prevent rotation beyond a certain level. In addition, by wrapping the helical spring 26 around the mounting shaft 22 and screwing the screw 27 into the mounting shaft 22, it is possible to prevent the spring from coming off. The engaging piece 23 is engaged with one side of the push button 23, and maintains an attitude in which the engaging piece 23 protrudes outward along the push button 13 in a normal state. When the engaging piece 23 is tilted around the mounting shaft 22, the helical spring 26 (the first pressing means in the claims of the utility model registration) exerts a biasing force in the push-back direction. Furthermore, when the tip of the engagement piece 23 is pushed down in the protruding direction of the pin 21, the elastic body 24 (second pressing means in the claims of the utility model registration) is compressed, as shown in FIG. exerts the urging force of

The above-mentioned engaging piece 23 has one side thereof (the helical spring 2
A recess 28 is formed on the side opposite to the side on which 6 is engaged, and a cam portion 29 having a gentle curve is provided in the range from the tip end to the recess 28. Further, a cam piece 31 is provided at the back of the recess 28 facing the open part 30. The cam piece 31 is connected to the side of the engagement piece distal end of the recess 28 and is cut and raised downward, and is connected to the side of the distal end of the recess 28 on the mounting shaft 22 side when viewed from above. A gap 32 into which the pin 21 can fit is formed between the sides. Further, the tip of the cam piece 31 is slightly lower than the lower end of the pin 21 (FIG. 7).

The embodiment of this invention is as described above, and its operation will be explained next.

As shown in Fig. 1, from the state where the inner stopper 9 is closed,
When the push button 13 is pressed, the inclined part 16
pushes down the inner stopper rod 10 and opens the inner stopper 9. At the same time, pin 21 of pushbutton 13
hits the cam portion 29 of the engagement piece 23, and the engagement piece 23
is tilted as shown by the dashed line in FIG. 4, and the pin 21 is pushed in until it falls into the recess 28. When the pin 21 is fitted into the recess 28, the push button 13 is locked.

When the push button 13 is pushed in again after pouring, the pin 21 will fit into the gap 32 at the tip of the cam piece 31.
, so if the pushing force of the push button 13 is removed, the push button 13 will fit into the coil spring 1.
8, the tip of the pin 21 rests on the cam piece 31, and escapes from the recess 28 of the engaging piece 23 while pushing down the cam piece 31 (FIG. 7).
The lock is released.

When the push button 13 is retracted in this manner, the engagement between the inclined portion 16 and the inner stopper rod 10 is disengaged, and the inner stopper 9 returns to the closed state.

Incidentally, as the push button 13 moves forward or backward, an open/close display appears from the peephole 19 of the cover 12.

(7) Effects As mentioned above, this device allows locking and unlocking by pushing the push button on the lid twice in the same direction.
It is convenient to handle and the lid can be removed with or without unlocking.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted sectional view of a magic bottle incorporating the inner cap opening/closing device of this invention, Fig. 2 is a partially longitudinal perspective view showing a part of the inner cap opening/closing device, and Figs.
The figure is a cross-sectional plan view showing the relationship between the push button and the engaging piece, and FIG. 7 is a vertical cross-sectional plan view of the same. 1...Body, 2...Inner bottle, 3...Opening, 4
... Shoulder body, 5 ... Lid, 6 ... Opening, 9 ... Inner stopper, 10 ... Inner stopper rod, 11 ... Coil spring, 12 ... Cover, 13 ... Push button,
16... Inclined part, 18... Coil spring, 2
1...Pin, 22...Mounting shaft, 23...Engagement piece,
24... Elastic body, 25... Stopper, 26... Spiral spring, 28... Recess, 29... Cam portion, 30
...Opening part, 31...Cam piece, 32...Gap.

Claims (1)

[Scope of Claim for Utility Model Registration] The inner stopper is opened by pushing a push button provided on the side of the lid against the biasing force and engaging a part of the push button with a part of the inner stopper. In the bottle opening/closing device, a pin is provided on the pushbutton to protrude downward, a mounting shaft parallel to the pin is provided on the lid, and an engaging piece that engages with the above pin is loosely fitted onto the mounting shaft. With the tip of the engagement piece facing the pin, rotation of the engagement piece in a certain direction is restricted by engaging a stopper provided on the engagement piece with a part of the mounting shaft. Providing a first pressing means for urging the engaging piece in a direction to partially engage the engagement piece, and a second pressing means for urging the engaging piece in a direction to push it back when the engaging piece is pushed down in the protruding direction of the pin, A cam part having a curve that tilts the engaging piece against the biasing force of the first pressing means by engagement with the pin is provided in a range from the tip of the engaging piece to one side thereof, and the cam part A recess is formed in the side of the engaging piece that is continuous with the recess, and a cam piece is provided in the recess opposite to the open part and offset to the side of the recess toward the tip of the engaging piece, and the cam piece is connected to the pin. An inner cap opening/closing device for a magic bottle, characterized in that the inner cap opening/closing device for a magic bottle is formed to have an inclined surface protruding downward from the lower end of the pin in the direction in which the pin protrudes.