JPH0610932Y2 - Inner opening and closing device of pot - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to an inner plug opening / closing device for a pot, and more particularly, to a device for automatically resetting the inner plug opening / closing device after pouring water. .

[Conventional technology]

An inside plug opening / closing device that opens and closes the inside plug of the plug body by pushing the push button horizontally with the fingertip of the hand holding the handle is known in the art (for example, Japanese Utility Model Laid-Open No. 59-4.
5042 publication).

The conventionally known stopper opening / closing device has a so-called push-push mechanism built-in. By pushing the push button, the inner stopper is locked in the open state, and by further pushing the push button, the inner stopper is reset. It is designed to return to the closed state.

[Problems to be solved by the device]

As described above, the conventional inner stopper opening / closing device has an inconvenience that the push button has to be operated not only when opening the inner stopper but also when closing the inner stopper, and in some cases, forgetting to close the inner stopper. However, the inner plug may be left open.

Therefore, an object of the present invention is to provide an inside plug opening / closing device in which the inside plug is closed by automatically resetting without manual operation.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides an operating member for opening and closing the inner stopper of the stopper on the shoulder body of the pot, and opening and closing the inner stopper of the pot by applying an outward biasing force to the operating member by a spring. In the device, a lock engaging portion is formed on the operation member, and an engaging / disengaging portion with respect to the lock engaging portion is provided at an upper end of a reset rod provided vertically movable along a pot body. A downward urging force is applied to the lower end of the reset rod so that the lower end of the reset rod projects to the bottom surface of the pot in the locked state.

[Action]

When the hot water is discharged from the pot that is gripped by the handle and lifted, the operation member opens the inner plug of the plug when the push button is pressed with the fingertip of the hand that grips the handle. As the operating member advances, the engagement / disengagement portion of the reset rod engages with the locking engagement portion and locks. When the operating member is in the locked state, the lower end of the reset bar projects to the bottom surface of the pot.

When the pot is returned to a table or the like after the hot water has been discharged, the lower end of the reset bar is pushed in, the engaging / disengaging part is disengaged from the locking part, and at the same time the operating member returns to its original state, closing the inner plug. At the same time, the engagement / disengagement portion of the reset rod is disengaged from the locking portion of the lock and returns to the reset state.

〔Example〕

In the pot shown in FIG. 1, a shoulder body 2 is fitted to the upper end of a body portion 1, a vacuum double bottle 3 is inserted inside, and a bottom body 4 is attached to the lower end. The opening end of the vacuum double bottle 3 is pressed against the lower end of the opening 6 of the shoulder body 2 via the packing 5.

A stopper body insertion opening 7 is formed on the upper surface of the shoulder body 2, and the stopper body 8 inserted into the opening portion 7 has a liquid passage 10 communicating with a discharge port 9. A valve seat 11 is provided at the lower end of the liquid passage 10, and a valve portion 12 ′ of the inner plug 12 contacts from below the valve seat 11 to close the liquid passage 10 in a normal state. A packing 13 is attached to the outer peripheral surface of the valve seat 11 to provide a seal between the opening 6 of the shoulder 2 and the plug 8.

The valve rod 14 of the inner plug 12 is constantly biased upward by a coil spring 15, and an opening / closing cam member 16 is provided above the valve rod 14.

The cam member 16 is formed with an inclined cam surface 17 facing the upper end of the valve rod 14. When the inclined cam surface 17 moves forward, the valve rod 14 is pushed down, and when it moves backward, the valve rod 14 returns to the raised position. Let

A guide rod 18 is provided so as to project from the tip of the cam member 16, and the guide rod 18 is supported by a guide plate 19 provided inside the plug body 8. A coil spring 22 is fitted around the guide rod 18 to urge the cam member 16 in the backward direction. Cam member 16
The rear end slides on the bottom plate 20 of the stopper 8. A protrusion 21 is formed on the rear end surface of the cam member 16, and the protrusion 2
1 is exposed on the outer peripheral surface of the plug 8.

A handle 23 is provided along the back surface of the body portion 1, and the handle 23 is attached to the shoulder body 2 with a screw 24. A push button 25 is provided on the handle 23.

An operation member 26 for the inner plug 12 is provided on the shoulder body 2 at a position facing the push button 25. The operation member 26 is slidably supported by a guide member 27 provided on the shoulder body 2, and is biased in the backward direction by a coil spring 28 inserted inside the guide portion 27. The tip of the operation member 26 is exposed on the inner peripheral surface of the shoulder body 2, and the tip faces the projection 21 of the cam member 16 with a slight gap.

A step portion 29 for resetting is formed on the lower surface of the latter half of the operation member 26 so as to protrude downward by one step, and a step portion at the rear end of the reset step portion 29 serves as a locking portion 30 for locking.

An L-shaped lock lever 32 is rotatably attached to the shoulder body 2 by a pin 33 below the latter half of the operation member 26. The lock lever 32 is biased by a spiral spring 34 attached to the pin 33 thereof so that the upper end thereof faces inward. The upper end of the lock lever 32 contacts the lower surface of the reset step portion 29 in the reset state (the operation member 26 is in the position shown by the solid line in the figure), and its rotation is blocked. Further, in the locked state (the state in which the operating member 26 is at the position indicated by the dashed line in the figure), the locking portion 30 is engaged.

A bracket 35 is integrally provided on the lower end of the lock lever 32, and an upper end of a reset rod 36 is attached to the bracket 35. The reset rod 36 is arranged along a guide groove 38 formed on the inner side surface of the mounting base 37 of the handle 23, and the lower end thereof has a hole 39 flush with the bottom surface of the pot 39.
Facing. When in the locked state, the lock lever 32
Since the lower end of the reset rod 36 lowers, the lower end of the reset rod 36 projects a predetermined length from the hole 39.

The pot of the embodiment has the above-mentioned configuration. When the hot water is discharged from the discharge port 9, when the push button 25 is pushed with the fingertip of the hand holding the handle 23, the operation member 26 moves forward and the tip is closed. The cam member 16 of the body 8 is pushed in. The cam member 16 pushes down the valve rod 14 with its inclined cam surface 17 to release the inner plug 12 from its valve seat 11.

When the upper end of the lock lever 32 fits into the locking engagement portion 30 due to the forward movement of the operation member 26, the operation member 26 cannot be returned, and the inner plug 12 is locked in the open state. At this time, the lower end of the reset rod 36 is held in a state of protruding from the hole 39.

When the hot water is discharged and the pot is returned to the top of the table,
The lower end of the reset rod 36 is pushed in, and the lock lever 32 rotates in the right direction in the figure, so that the upper end of the lock lever 32 is disengaged from the locking engagement portion 30. Therefore, the operating member 2
6 is pushed back by the force of the coil spring 28, and the upper end of the lock lever 32 hits the reset step 29. Operation member 2
When the cam 6 is retracted, the cam member 16 is also pushed back by the force of the coil spring 28, and the inclined cam surface 17 is separated from the valve rod 14, so that the inside plug 12 is pulled up by the coil spring 15.
It comes into contact with the valve seat 11 and closes.

In addition, the lock lever 32 and the bracket 35 integrated with the lock lever 32 are, in the "claim for utility model registration",
It is collectively referred to as the "engagement department."

Next, the embodiment shown in FIG. 2 and FIG.
Locking part 30 'is provided on the upper surface of the reset bar 3
A square ring portion 40 provided at the upper end of 6'is loosely fitted to the operating member 26. Further, in order to prevent the reset bar 36 from moving in the front-rear direction, the front surface thereof is brought into contact with the projection 41 of the shoulder body 2, and the rear surface thereof is supported by the receiving bar 42 integral with the shoulder body 2.

The square ring portion 40 is referred to as a "disengagement portion" in the "claim for utility model registration". The configuration other than the above is the same as in the case of FIG.

In the embodiment shown in FIGS. 2 and 3, the push button 25 is pushed in from the reset state shown, and the operating member 26 is pressed.
When the locking portion 30 ′ of the lock comes under the square ring portion 40,
The reset rod 36 'falls into the locking portion 30' due to its own weight. As a result, the operating member 26 is locked, and at the same time, the lower end of the reset rod 36 'projects from the hole 39.

When the lower end of the reset rod 36 'is pushed up by a surface such as a table, the rectangular ring portion 40 is disengaged from the locking portion 30' and the operating member 26 is returned to its original state.

[Effect of device]

As described above, the present invention resets the inside plug opening / closing device by the reset bar that appears on the bottom surface of the pot. Therefore, after discharging hot water, simply return the pot to the table etc. The inner stopper can be closed.
For this reason, there is the convenience that the push button does not have to be operated for resetting, and it is safe because it is guaranteed that the valve is closed when placed on a table or the like.

[Brief description of drawings]

1 is a sectional view of an embodiment, FIG. 2 is a sectional view showing a part of another embodiment, and FIG. 3 is a partially enlarged perspective view of FIG. 1 ... Body part, 2 ... shoulder body, 3 ... vacuum double bottle, 4 ... bottom body, 8 ... plug body, 10 ... liquid passage, 11 ... valve seat, 12 ... medium stopper, 14 ... Valve rod, 16 ... Cam member, 17 ... Inclined cam surface, 25 ... Push button, 26 ... Operating member, 29 ... Reset step, 30, 30 '... Locking locking section , 32 ... Lock lever, 36, 36 '... Reset rod, 38 ... Hole, 40 ... Square ring.

Claims (1)

[Scope of utility model registration request] 1. An inner closure opening / closing device for a pot, wherein an operation member for opening / closing the inner closure of the stopper is provided on the pot shoulder body, and an outward biasing force is applied to the operation member by a spring. A lock engaging portion is formed, and an engaging / disengaging portion with respect to the lock engaging portion is provided on the upper end of the reset rod provided so as to be vertically movable along the pot body, and a downward biasing force is applied to the reset rod. An inner closure opening / closing device for a pot, wherein a length of a lower end of the reset rod is set to a length such that the lower end projects to a bottom surface of the pot in a locked state.