JPH0447568B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electric pot, and more particularly to an improvement in a steam exhaust passage of an electric pot.

(Prior art and its problems) The steam exhaust passage of conventional electric pots was formed to pass through the center of the lid, for example, inside the bellows of the air pumping device, which caused thermal deterioration of components such as the air pumping device. In addition, because the exhaust port was formed on the top of the central part of the lid, for example, on the push plate of the air pumping device, high-temperature steam could easily hit the user's hands, causing safety problems. Ta.

Therefore, it has been proposed to form a steam vent passage that opens at an eccentric position on the upper surface of the lid through a part of the lid (see Utility Model Application No. 57-191227...1, Japanese Unexamined Patent Publication No. 59-160417) ...2. Japanese Patent Application Publication No. 58-27531...3).

These types use the space formed by the lid itself, such as between the lower plate of the lid and the inner lid below this lower plate, or the steam outlet of the steam vent passage is connected to the passage pipe. It has a structure that faces the outside from an opening on the top surface of the lid.

However, to use the space formed by the lid itself as a steam release passage, the passage is too wide and the steam tends to spread over a wide area, and the sealing properties with the surroundings are poor, so the steam escapes further. Easy to scatter. Therefore, the steam spreads to various parts of the lid, causing anxiety to the user and causing thermal deterioration.

In addition, the part where the steam exhaust port of the steam vent passage faces the top surface of the lid body has a double opening structure with the opening of the lid body, making the appearance complicated and unsightly. It is easy for dirt and deposits to get into or get clogged in the space between the double doors, which is a sanitary problem.

(Objective of the Invention) An object of the present invention is to solve the above-mentioned problems.

(Structure of the Invention) In order to achieve the above-mentioned object, the present invention has a lid body pivotably attached to a container body including a wide-mouthed liquid container whose opening portion is formed to have approximately the same diameter as the inner diameter of the body, so that when the lid is closed, In an electric pot where the inner lid placed below the lower plate of the lid closes the opening of a wide-mouthed liquid container, it is integrally formed with the upper plate of the lid so that it opens on a part of the upper surface of the upper plate and protrudes downward. The steam venting passage pipe provided between the lid body and the steam venting passage pipe provided between the lower plate of the lid body and the inner lid and opening to the lower surface of the inner lid are connected inside the lid body, and the steam venting passage pipe provided between the lower plate of the lid body and the inner lid is connected inside the lid body. It is characterized by forming a steam vent conduit that leads to a part of the pipe.

(Example) The present invention will be specifically described below based on an example shown in the drawings.

In the first embodiment shown in FIG. 1, 1 is a wide-mouth liquid container (hereinafter referred to as liquid container) whose opening is formed to have approximately the same diameter as the inner diameter of the body, 10 is an outer case, 11 is a bottom ring, and 12 is a The container body 2 is composed of a bottom plate, 13 a heater, 14 a pipe cover, 15 a shoulder ring, and 16 a liquid container support member. Further, a pouring passage 7 for pouring out the liquid in the liquid container 1 to the outside is provided on the side of the container body 2, and its starting end 7a is connected to the bottom of the liquid container 1.

A lid 4 equipped with an air pressure feeding device 3 is pivotally attached to the container body 2 so as to be openable and closable. Reference numeral 17 denotes a pivot shaft for pivotally connecting the rear part of the shoulder ring 15 of the container body 2 and the rear end portion 18 of the lid body 4, and is attached to the lid body 4 side.
An L-shaped attachment hole 50 is formed at the rear of the shoulder ring 15, and the pivot shaft 17 and, by extension, the lid 4 are removably attached to the container body 2 by being restrained by this L-shaped hole 50.

The air pressure feeding device 3 includes a push plate 19, an air intake valve 20, an operating rod 26, a bellows upper plate 21, a bellows 22, a bellows lower plate (corresponding to the lower plate of the lid body 4) 8, a return spring 23, etc. It consists of Note that 24 is a safety mechanism for locking the operation of the air pressure feeding device 3.

An inner cover 5 made of stainless steel or aluminum is attached to the lower surface of the bellows lower plate 8, which also serves as the lower plate of the cover body 4, using screws 25, and a space is formed between the two. are doing. This inner lid 5
When the lid body 4 is closed, it comes into close contact with the opening 6 of the liquid container 1 via the ring-shaped packing 27, thereby closing the opening 6 of the liquid container 1.

A steam venting pipe 9 as a steam venting passage tube forming a steam venting channel under the lid 4 made of synthetic resin is disposed in the space. In the illustrated example, the steam vent pipe 9 is constructed by connecting two pipes 9a and 9b, and the steam vent pipe 9 is fixed to the bellows lower plate 8 at the same time when the inner cover 5 is attached to the bellows lower plate 8. I have to.

A passage hole 28 for compressed air and steam is formed at the left end of the steam vent pipe 9 in FIG. 1, and a water stop ball 29 is disposed below the passage hole 28. The water stop ball 29 is arranged above the normally open passage hole 30. Incidentally, this passage hole 30 is opened in the inner lid 5, and compressed air flows through the passage hole 30 into the liquid container 1.
At the same time, the vapor in the liquid container 1 is supplied to the lid 4.
guided inside. Reference numeral 31 is a guide rib formed integrally with the outer wall of the steam vent pipe 9 to guide the water stop ball 29 in the vertical direction.

When the electric kettle falls over, the water stop ball 29 sits in the passage hole 28 and closes it, thereby preventing the liquid (hot water) in the liquid container 1 from flowing out.

In this embodiment, the water stop ball 29 is arranged so as to be deviated forward (to the left in FIG. 1) from the operating rod 26, so that the vertical thickness between the bellows lower plate 8 and the inner lid 5 is reduced. The size of the cover body 4 is reduced to make the lid body 4 more compact. Another feature is that the water-stopping effect of the water-stopping ball 29 is performed most smoothly when the electric pot falls forward.

After the steam in the liquid container 1 passes through the communication hole 30 and the passage hole 28, it enters the chamber 32 formed between the center of the bellows lower plate 8 and the upper part of the steam vent pipe 9, and then the steam It enters the inside of the steam venting pipe 9 through the communication hole 33 provided in the upper part of the venting pipe 9. This communication hole 33 is located directly below the operating rod 26, and is closed by a packing valve 34 attached to the lower end of the operating rod 26 when the push plate 19 is pushed down to operate the air pressure feeding device 3.
Also, at this time, the valve hole 3 provided in the center of the bellows lower plate 8
5 opens, compressed air pumped from the bellows lower plate 22 flows into the chamber 32 through the valve hole 35, and then enters the liquid container 1 through the passage hole 28 and the communication hole 30. The pressure of this compressed air causes the liquid in the liquid container 1 to be poured out through the pouring passage 7. Note that, as described above, when the push plate 19 is pushed down, the communication hole 33 is closed, so that compressed air does not flow into the steam vent pipe 9.

The steam vent pipe 9 extends rearward (to the right in FIG. 1) within the space formed between the bellows lower plate 8 and the inner lid 5, and reaches the peripheral rear part of the lid body 4. At the rear end of the bellows lower plate 8, a steam guide cylindrical portion 36 forming a steam passage is provided upright.
Also, the lid body of the lid body 4 (corresponding to the upper plate of the lid body 4) 3
Also integrally formed at the rear end of the steam guide tube 36 is a steam exhaust tube 38 serving as a steam vent passage pipe that connects to the steam guide tube 36 to form a steam vent line on the lid 4 side. A discharge port 39 opens at the rear of the top surface of the lid 4. The tip of the steam vent pipe 9 is provided with an outlet 40 that communicates with the steam guide tube 36, and a hole 4 for applying steam to the steam temperature detection sensor 41 held on the shoulder ring 15.
2 is provided. Therefore, the steam entering the steam vent pipe 9 from the liquid container 1 passes through the outlet 40, the steam guide tube 36, and the steam exhaust tube 38, and is discharged to the outside from the outlet 39, reducing the pressure inside the liquid container 1. prevents it from rising excessively. Furthermore, the heat generation of the heater 13 can be controlled by detecting the steam temperature with the sensor 41 and detecting whether the liquid in the liquid container 1 is boiling.

In this embodiment, the safety stopper 24a of the safety mechanism 24 is located in front of the push plate 19, and the discharge port 39 is located behind the push plate 19, so that the It has the advantage of being able to operate the safety stopper 24a and providing excellent safety.

A pair of left and right knob-type opening/closing locks 44 are disposed on the front end protrusion 43 of the lid body 37. The opening/closing lock 44 is engaged with a locking portion 45 provided on the forward extending portion 15a of the shoulder ring 15, and functions to maintain the lid body 4 in a closed state.

The pouring passage 7 is constructed by connecting a lower pipe 46 located within the outer case 10, a pipe unit 47 located within the pipe cover 14, and a discharge pipe 48. The pipe unit 47 is
a bent pipe 49 connected to the lower pipe 46;
It is constructed by combining a type pipe 52 with a built-in overturn water stop valve 51 and a connecting pipe 53 connected to the discharge pipe 48, and there is a pipe 52 between the extending portion 15a of the shoulder ring 15 and the lower pipe 46 and the discharge pipe 48. It is fixed in a compressed state. Further, the shaped pipe 52 is constructed by combining a main body portion 54, a cover plate portion 55, and a valve seat forming portion 56. In addition, the above-mentioned overturning water stop valve 51
is the liquid (hot water) in the liquid container 1 when the electric pot falls over.
This is to prevent the liquid from flowing out through the pouring passage 7.

As shown in FIG.
5a. and,
By assembling the cover plate portion 55a and the valve seat forming portion 56a to the main body portion 54a, a pipe unit similar to the pipe unit 47 shown in FIG. 1 can be constructed. Moreover, the structure shown in FIG. 2 has the advantage that since the main body 54a of the pipe unit 47 is integrally formed with the shoulder ring 15, its fixed state is strong and strong, and the number of parts can be reduced.

In the second embodiment shown in FIG. 3, steam in the liquid container 1 passes through a plurality of communication holes 30a formed in the inner lid 5 and an inlet 57 formed in the lower surface of the steam vent pipe 9, and then flows into the steam vent pipe 9. configured to flow in. Further, a water stop ball 29 is disposed in a steam guide cylinder portion 36a formed integrally with the bellows lower plate 8. 58 is a guide rib formed integrally with the steam guide cylinder portion 36a. Further, a mesh cylinder 59 for preventing dust from entering is fitted into the exhaust port 39 of the steam exhaust cylinder 38a formed integrally with the lid main body 37.

On the other hand, push down the push plate 19 to release the air pressure feeding device 3.
When the valve is operated, the packing valve 34a attached to the lower end of the operating rod 26 moves to the open position, and the valve hole 35
Since the chamber 3 is opened, the compressed air sent from the bellows 22 passes through the valve hole 35 and enters the chamber 3.
2, then passes through the passage hole 28a passing through the steam vent pipe 9, and enters the liquid container 1 through the communication hole 30a. Further, as the operating rod 26 moves downward, the rubber valve plate 60 is pushed downward, closing the inlet 57.
This prevents compressed air from flowing into the steam vent pipe 9.

The pipe unit 47 of this embodiment has a main body portion 54a integrally formed with the front extending portion 15a of the shoulder ring 15, as in the case shown in FIG. still,
Since the other configurations of this embodiment are basically the same as those of the first embodiment, the same reference numerals are given in FIG. 3, and the explanation thereof will be omitted.

In the third embodiment shown in FIG.
b. It is configured to flow into the steam venting pipe 9 through a chamber 32b formed between the inner lid 5 and the steam venting pipe 9 and an inlet 57b formed on the lower surface of the steam venting pipe 9. The communication hole 3
A water stop ball 29 is arranged above the inlet 57b and below the inlet 57b.
7b can be occluded. Further, the guide rib 61 of the water stop ball 29 is integrally formed with the steam vent pipe 9.

In this embodiment, when the push plate 19 is pushed down to operate the air pumping device 3, the lower end of the operating rod 26 pushes down the rubber valve body 60b, opening the valve hole 35. The rubber valve body 60b is attached to cover the upper opening of the steam vent pipe 9, and when the operating rod 26 moves downward, the valve hole 35 is opened as described above, and at the same time, the inlet 57b is opened. It also has the function of occluding the. A communication passage 62 is formed in the rubber valve body 60b, and when the valve hole 35 is opened, the compressed air pumped from the bellows 22 flows through the valve hole 35, the communication passage 62, the chamber 32b, and the communication passage. Hole 30b
The liquid container 1 is configured to enter the liquid container 1 through the liquid container 1. Note that the other configurations of this embodiment are basically the same as those of the first embodiment, so common reference numerals are given in FIG.
The explanation will be omitted.

The present invention can be configured in various ways other than those shown in the above embodiments. For example, the inner lid 5 is
The means for attaching to the lower plate 8 is not limited to the screws 25, but force fitting (forced fitting) means or the like may be employed. Furthermore, the opening position of the steam passage outlet 39 is not limited to that shown in the above embodiment;
It is also possible to arrange it on the side peripheral wall of 7.

(Effects of the Invention) According to the present invention, while utilizing the space between the lower plate of the lid body and the inner lid below this lower plate, and the space inside the lid body, the steam vent passage pipe is The steam generated in the wide-mouthed liquid container can be discharged from the predetermined part of the lid through the predetermined narrow passage through the entire length of the predetermined narrow passage to prevent it from circulating or escaping elsewhere.

In addition, a steam venting passage pipe is formed integrally with the upper plate of the lid body so as to open in a part of the upper surface of the upper plate and protrude to the lower surface side. It is connected to a steam venting passage pipe provided between the pipes and opening into the wide-mouthed liquid container to form the steam venting pipe, and the pipe structure, particularly the opening of the pipe to the top surface of the lid body, has a single layer. Since the structure is simplified, both the number of parts and assembly man-hours are reduced, which can reduce costs accordingly, and the appearance of the opening to the top surface of the lid of the steam vent pipe is simplified, making it more attractive. In addition, due to the single opening structure, unlike in the case of a double structure, there is no possibility of dirt or deposits entering the space between the double walls or causing clogging.

[Brief explanation of drawings]

FIG. 1 is a partially omitted longitudinal side view of the first embodiment of the present invention, FIG. 2 is a longitudinal side view of a modification thereof, and FIG. 3 is a longitudinal side view of main parts of the second embodiment of the present invention. Fourth
The figure is a longitudinal sectional side view of the main parts of a third embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Wide-mouth liquid container, 2... Container body, 4... Lid, 5... Inner lid, 6... Opening, 8... Lower plate, 9...
...Steam vent pipe.

Claims (1)

[Scope of Claims] 1. A lid is pivotably attached to a container body having a wide-mouthed liquid container whose opening is formed to have approximately the same diameter as the inner diameter of the body, and when the lid is closed, the lid is attached under the lower plate of the lid. In an electric pot whose inner lid is arranged to close the opening of a wide-mouthed liquid container, a steam vent passage pipe is integrally formed on the upper plate of the lid body so as to open in a part of the upper surface of the upper plate and protrude to the lower surface side; A steam vent pipe that connects inside the lid with a steam vent passage pipe that is provided between the lower plate of the lid and the inner lid and opens to the bottom surface of the inner lid, and that leads from inside the wide-mouthed liquid container to a part of the top surface of the lid. An electric pot characterized by having a channel formed therein.