JPS588196Y2 - air pot - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an air pot.

Conventionally, there are two types of air pots: manual type and electric type, but both operate an air pump built into the outer lid to send air into the inner bottle via the inner stopper. The liquid inside the bottle is poured out to the outside through a water lift pipe and a water fill pipe of the inner stopper.

The outer lid of the air pot is hinged to the shoulder so that it can be opened and closed, and one end of the outer lid has a hinge mechanism, and the other end has a locking mechanism that removably engages with the shoulder and a water injection pipe. A portion of an upper cover covering the upper surface is provided respectively.

However, as mentioned above, the lid that opens and closes requires a hinge mechanism and a locking mechanism, which not only increases the number of parts and costs, but also makes it difficult to remove the remaining hot water from the medium bottle. The drawback was that the lid got in the way.

Additionally, there was a high risk that the outer lid would open if the air pot was accidentally knocked over.

Therefore, in order to eliminate the drawbacks of the open/close type air pot as described above, an air pot is considered in which the outer cover is fixed to the shoulder body by screwing.

However, with this screw-on type air pot, the outer cover is completely detached from the shoulder body, so there is a risk that part of the top cover of the water inlet pipe will break if the outer cover is accidentally dropped, so it is necessary to replace the entire outer cover. Must be.

In addition, a part of the upper cover must be made into a flat plate in order to match the part of the lower cover of the shoulder body on the rotation trajectory.
There was a drawback that a portion of the upper cover of the outer lid and a portion of the lower cover of the shoulder body did not match well due to warping during molding, resulting in a deterioration in appearance.

The present invention was developed in view of the above drawbacks, and the water injection pipe cover is made separate from the outer lid, and the outer lid is screwed onto the shoulder body, thereby simplifying the shape of the outer lid. To provide an air pot which has good compatibility even if damaged, and has good appearance and ease of assembly by matching a water injection pipe cover and a part of a lower cover of a shoulder body without a gap.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

Figure 1 shows the air pot according to the present invention, where 1 is a body, 2 is a medium bottle made of a vacuum double bottle housed inside the body 1, and 3 is a shoulder fixed to the upper part of the body 1. 11 is an inner stopper, and 29 is an outer lid.

The shoulder body 3 is integrally molded from synthetic resin as shown in FIGS. A lower cover portion 6 is provided that protrudes from above, and a mountain-shaped convex portion 7 is provided at both ends of the bottom surface of the cutout portion 5 .

Further, a threaded portion 8 is provided inside the upper end peripheral wall portion 4 of the shoulder portion 3.

In addition, the narrow mouth part 2a of the medium bottle 2 is fixed to the lower part of the shoulder body 3 via the backing 9.

The inner stopper 11 consists of an inner stopper main body 12 (see Figs. 4 and 5), a water injection pipe 17 (see Figs. 6 to 8), and a water lift pipe 20, and is fitted into the central hole 10 of the shoulder body 3 with backing. 21 and is fitted more tightly.

A vent hole 13 is provided on the upper surface of the inner plug main body 12, and the vent hole 13 and an opening (not shown) provided on the lower surface communicate vertically.

A connecting tube 14 is integrally provided on the upper outer circumferential surface of the inner plug body 12, and a locking protrusion 15 is provided at the root of the connecting tube 14, and a locking protrusion 15 is provided protruding from both sides. A small protrusion 16 is provided on the outer peripheral surface of the approximately central portion.

One end of the water injection pipe 17 is inserted into the connection pipe 14, and a notch 18 is formed at the tip of one end of the water injection pipe 17, and a wide protrusion 1 is formed from the center to the other end.
9 are integrally provided.

The water injection pipe 17 is detachably held by the water injection pipe cover 22.

That is, as shown in FIGS. 9 to 12, the water injection pipe cover 22 has a wall portion 23 on one end side that covers the top surface, both side surfaces, and the front surface of the water injection pipe 17, and has a wall portion 23 on the other end side. has a pair of arm portions 24.

A circular arc surface 25 that matches the outer peripheral surface of the inner plug body 12 is formed at the tip of the arm portion 24, and an arcuate surface 25 that fits with the locking protrusion 15 of the inner plug body 12 is formed on the inner surface of the tip of the arm portion 24. A recess 26 is formed.

A mountain-shaped recess 27 and a pair of holding claws 28 that protrude opposite each other are provided in the center of the water injection pipe cover 22, and the center of the water injection pipe 17 is forcibly fitted between the holding claws 28. Retained.

Then, the protruding piece 19 of the water injection pipe 17 comes into contact with the inner surface of the wall portion 23 of the water injection pipe cover 22, so that the water injection pipe 17 does not wobble in the lateral direction.

As mentioned above, the water injection pipe cover 22 is attached to the water injection pipe 17, and by holding this water injection pipe cover 22 and inserting one end of the water injection pipe 17 into the connection pipe 14 of the inner plug main body 12,
The recess 26 at the tip of the arm 24 of the water injection pipe cover 22 fits with the locking protrusion 15 of the inner plug body 12 to prevent removal, and at the same time, the notch 18 at the tip of one end of the water injection pipe 17 fits into the small protrusion of the connecting pipe 14. 16 and is prevented from rotating.

As a result, the inner stopper main body 12, the water injection pipe 17, and the water pumping pipe 20
and the water injection pipe cover 22 are integrated, and the water injection pipe 17 and the water pumping pipe 20 communicate with each other via the inner stopper main body 12.

When this inner stopper 11 is fitted into the central hole 10 of the shoulder body 3, the water injection pipe cover 22 is fitted into the notch 5 of the shoulder body 3 and is vertically combined with the lower cover portion 6.

Then, the mountain-shaped recess 27 and the shoulder 3 of the water injection pipe cover 22
A mountain-shaped convex portion 7 provided on the lower surface of the cutout portion 5 is fitted, and the water injection pipe cover 22 is positioned with respect to the shoulder body 3 in the front-rear direction.

When the water injection pipe cover 22 is completely fitted into the notch 5 as described above, the upper surface of the water injection pipe cover 22 and the shoulder 3
is located almost on the same plane as the top surface of.

The outer cover 29 is made of synthetic resin and is integrally molded into a substantially cylindrical shape. Inside thereof, an air pump 30 consisting of a bellows pump, a cap 32, a lock body 34, etc. are built-in, and a pusher body 35 is mounted on the top surface. It is provided to be vertically movable, and a bottom plate 36 is fixed to the lower surface.

The outer cover 29 is fixed to the upper part of the shoulder part 3 by screwing the threaded part 37 provided on the bottom plate 36 into the threaded part 8 of the shoulder body 3.

At this time, the lower surface of the outer cover 29 is pressed against the upper surface of the shoulder body 3 and the upper surface of the water injection pipe cover 22, and the water injection pipe cover 22 is pressed against the upper surface of the outer cover 29.
The lower surface and the upper surface of the lower cover part 6 of the shoulder body 3 are clamped and fixed from above and below.

Moreover, since the threaded parts 37 and 8 between the outer cover 29 and the shoulder part 3 are provided near the outer periphery, the screwing strength is high, and the outer cover 29 has a high screwing strength.
There is no need to worry about the 9 and the shoulder part 3 shaking.

A sealing rubber 38 having a through hole 38a is fitted in the center of the bottom plate 36, and the lower surface of this sealing rubber 38 is pressed to the upper surface of the inner plug body 12 of the inner plug 11, and the sealing rubber 38 has a through hole 38a.
The inside of the air pump 30 and the vent port 13 of the inner plug 11 communicate with each other through the through hole 38 a of the inner stopper 11 .

Here, the operation of the air pot having the above configuration will be explained.

First, when the pusher 35 is not pushed down, the pusher 35 is
5 is the spring 33 of the cap 32 and the air pump 3
It is urged upward by a spring 31 of 0, and is stopped with its upper surface positioned substantially on the same plane as the upper surface of the outer lid 29.

The medium bottle 2 and the air pump 30 communicate with each other via a seal rubber 38 and an oki plug 11, and the steam inside the medium bottle 2 (
When there is hot water in the medium bottle 2), the hot water flows into the air pump 30 and further flows out from a hole (not shown) provided in the upper plate of the air pump 30, thereby preventing a rise in vapor pressure within the medium bottle 2. are doing.

Now, operate the lock body 34 to the open position,
When the upper surface of the pusher body 35 is pushed down, the air pump 30 is compressed, and the air in the air pump 30 is sent into the medium bottle 2 through the through hole 38 a of the seal rubber 38 and the inner stopper 11 , whereby the medium bottle 2 The liquid inside passes through the water lift pipe 20, the inner stopper main body 12, and the water injection pipe 17, and is poured out to the outside.

When the pressing blade on the pushing body 35 is released, the air pump 30 and the pushing body 35 are returned upward by the springs 31 and 33, returning to their original state.

As described above, the present invention separates the water injection pipe cover, which was conventionally provided integrally with the outer cover, so there is no need to worry about damaging the water injection pipe cover even if the outer cover is accidentally dropped, as in the past.
Conversely, even if the water injection pipe cover is damaged, there is no need to replace the entire outer cover.

Furthermore, since the shape of the outer cover itself is simplified, molding is simple and handling is also easy.

In addition, the water injection pipe cover fits into the notch of the shoulder body and also matches a part of the lower cover of the shoulder body, and the water injection pipe cover is made up of the lower surface of the outer cover that is screwed on from above and the upper surface of a part of the lower cover. Since it is sandwiched from the top and bottom, it is possible to eliminate the gap between the water injection pipe cover and the beak, which was a drawback of screw-on air pots, and it is possible to obtain an air pot with good appearance and ease of assembly. Even if this air pot is accidentally knocked over, the water injection pipe is protected by the water injection pipe cover, so a large impact force will not be applied directly to the water injection pipe, preventing damage to the weakest water injection pipe. Can be done.

Furthermore, since the water fill pipe cover is removably attached to the inner stopper, it is possible to change the color by replacing the water fill pipe cover as appropriate, and the inner stopper body of the inner stopper generally has a limited lifespan. It is short and has a long service life, so even if the inner stopper is to be replaced, it is only necessary to remove the water filler pipe and the filler pipe cover from the inner stopper body and replace only the inner stopper body.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can also be applied to an electric kettle equipped with a heater instead of, for example, a vacuum double bottle equipped with a middle bottle. The air pump may be a manual type or an electric type equipped with a battery and a motor.

Further, the water injection pipe cover is not limited to being attached integrally with the water injection pipe as in the above embodiment, but may simply cover the upper side of the water injection pipe.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of the air pot according to the present invention, FIGS. 2 and 3 are plan views of the shoulder body, and III of FIG.
-III line sectional view, Figures 4 and 5 are left side views and front views of the stopper body, Figures 6 to 8 are plan views, front views, and bottom views of the water injection pipe, and Figures 9 to 12. The figures are a plan view, a bottom view, a sectional view taken along the line XI-X in FIG. 9, and a sectional view taken along the line ■-■ in FIG. 11, of the water injection pipe cover. 1...Body, 2...Medium bottle, 3...
・・Shoulder body, 4・・・Upper end peripheral wall part, 5・・・・
Notch, 6... Part of lower cover, 11...
Inner stopper, 12... Inner stopper body, 15... Locking protrusion, 17... Water injection pipe, 20... Lifting pipe, 22...・・Water injection pipe cover, 24・・・・
・Arm part, 29... Outer lid, 30... Air pump.

Claims (1)

[Scope of utility model registration request] A shoulder body is fixed to the upper part of the body that houses the medium bottle, an outer lid with a built-in air pump is attached to the upper part of the shoulder body, and an inner stopper is provided with a water injection pipe and a water pumping pipe above the mouth of the medium bottle. and operating the air pump, air is sent into the medium bottle through the inner stopper, and the liquid in the medium bottle is poured out to the outside through the water pumping pipe and the water injection pipe. In the pot, a notch is provided in the upper peripheral wall of the shoulder, and a part of the lower cover that covers the lower surface of the water inlet pipe is protruded from the bottom of the notch, and a cover that covers the outside of the water inlet pipe is provided. A water pipe cover is removably attached to the inner stopper, and this water pipe cover is fitted into the notch and matches the upper surface of the part of the lower cover, so that the upper surface of the water pipe cover and the upper surface of the shoulder body are almost the same. An air pot in which the water pipe cover is sandwiched and fixed from above and below between the outer cover and a part of the lower cover by screwing the outer cover onto the upper part of the shoulder body.