JP2000079060A - Electric water boiler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent natural discharge of hot water in an inner container by avoiding closure of a cover body when the cover body is being forcedly closed strongly, and prevent leak of hot water in the inner container by preventing opening of the cover body when a device body is tumbled. SOLUTION: In this water boiler, a cover body 8 comprises an engagement piece 25 to be engaged with a main body when the cover body 8 is closed, and a tumbling stopping valve 12 to close a steam passage 38 to discharge steam generated in an inner container 3 to the external at the time of a tumble, and engagement and removal of the cover body 8 and the main body with/from each other are achieved by move of the engagement piece 25. In this case, a regulation means to regulate move of the engagement piece 25 when the cover body 8 is being forcedly closed strongly is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric water heater having a safety mechanism against spontaneous discharge of hot water due to excessive rise in internal pressure of the inner container when a lid is strongly closed and outflow of hot water at the time of falling.

[0002]

2. Description of the Related Art In a conventional electric water heater, a discharge passage for discharging hot water in an inner container is provided on a main body side, and a steam passage for discharging steam generated by heating water in the inner container to the outside is provided. It is provided on the lid side. Also, the electric water heater may fall down due to inadvertent snagging during use or stationary, etc.When it falls, the hot water in the inner container flows out to the outside through the above-mentioned pouring path or steam passage and wets around, In addition, there was a danger of burns due to the hot water.

Conventionally, in order to prevent the hot water in the inner container from unexpectedly flowing out due to the overturn of the vessel, a water stop valve for overturning is provided in the above-mentioned spouting path or steam passage. In an electric water heater having a structure, when the lid is vigorously closed in a state where hot water is present in the inner container, the water stop valve provided in the steam passage closes when the steam passage is closed by inertia force. It may be closed at a stretch.

[0004] In this case, when the lid is closed, the surrounding low-temperature air is trapped in the high-temperature inner container.
The air rapidly expands and the internal pressure of the inner container rises excessively, resulting in spontaneous discharge of the hot water in the inner container from the spout, which may cause burns, especially when the hot water temperature is higher. Was high.

As a countermeasure, Japanese Unexamined Utility Model Publication No. Hei 6-24633 discloses that the lid is shifted to the left or right when the lid is closed to prevent the lid from being closed at once.
Japanese Patent Application Laid-Open No. 6-62964 discloses a method of preventing a steam passage from being closed by providing a water stop valve for a steam passage in the vicinity of a pivotal position of a lid to reduce the inertia of the water stop valve. Is disclosed.

[0006]

However, in the structure disclosed in the above publication, in which the lid is displaced when the lid is closed, the orientation of the lid is returned to the normal position by hand every time the lid is closed. It is inconvenient to use it while pushing it down, and the fact that the lid is displaced (twisted) even during the closing operation may give a user an impression of malfunction.

On the other hand, in a structure in which the water stop valve for the steam passage is provided near the pivotal position of the lid, the steam passage is completely prevented from being closed depending on the structure and the condition of closing the lid. Can not do it.

Further, when the body falls down, the engaging piece that keeps the lid closed due to the impact is detached, or when the user falls down, the user tries to raise the body. May accidentally touch the open / close operation lever, causing the lid to open and the hot water in the inner container to leak out, possibly causing burns or flooding the area around the inner container. The lid is easily opened due to the water pressure in the opening direction of the lid due to the hot water inside.

The electric water heater according to the present invention aims at solving the above-mentioned problems and prevents the lid from closing when the lid is strongly closed, thereby preventing spontaneous discharge of hot water in the inner container. It is another object of the present invention to prevent the lid from opening even if the container falls down to prevent the hot water in the inner container from leaking.

[0010]

In order to solve the above-mentioned problems, an electric water heater according to the present invention has the following features.
A main body having a built-in inner container and a spouting path for discharging the solution in the inner container to the outside, and a lid pivotally supported by the main body and covering the inner container opening, wherein the lid is closed when the lid is closed. An engagement piece that engages with the main body, and a falling water stop valve that closes a steam passage that discharges steam generated in the inner container to the outside when the overturning occurs. In the electric water heater in which the detachment is performed, a regulating means for regulating the movement of the engaging piece when the lid is strongly closed is provided.When the lid is strongly closed by this configuration, The movement of the engagement piece is restricted so that the lid does not close at a stretch.

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, when the lid is closed, the lid does not move to the moving space of the engagement piece, and the lid is strongly closed. The moving body is arranged so as to move to the moving space of the engagement piece when the cover is moved, and the restricting means is constituted. This restricts the movement of the engagement piece so that the lid does not close at a stretch.

According to a third aspect of the present invention, there is provided a main body having a built-in inner container and a pouring passage for pouring a solution in the inner container to the outside, and a lid pivotally supported by the main body and covering the container opening. The lid body has an engagement piece that engages with the main body when the lid body is closed, and a falling water stop valve that closes a steam passage that discharges steam generated in the inner container to the outside when the body falls, In an electric water heater in which the lid and the main body are disengaged by the movement of the engagement piece, a regulating means for regulating the movement of the engagement piece when the body falls down is provided. When the body falls, the movement of the engagement piece is restricted so that the lid does not open.

According to a fourth aspect of the present invention, in the third aspect of the present invention, when the body falls down, it moves to the movement space of the engaging piece, and when the body is in the upright state, it is engaged. A moving body is arranged so as not to move to the moving space of the piece, and the restricting means is configured,
With this configuration, when the vessel falls, the movement of the engaging piece is restricted by the moving body so that the lid does not open.

Further, the invention according to claim 5 comprises a main body having a built-in container and a spouting channel for pouring the solution in the inner container to the outside, and a lid pivotally supported by the main body and covering the container opening. The lid has an engagement piece that engages with the main body when the lid is closed, and a falling water stop valve that closes a steam passage that discharges steam generated in the container to the outside when the lid falls. In an electric water heater in which the lid and the main body are disengaged by the movement of the mating piece, a regulation for restricting the movement of the engaging piece when the lid is strongly closed and the vessel falls down. With this configuration, when the lid is strongly closed, the movement of the engagement piece is restricted and the lid does not close at a stretch, and even when the container falls down The movement of the engagement piece is restricted so that the lid does not open.

Further, according to a sixth aspect of the present invention, in the fifth aspect of the present invention, when the lid is closed, or when the container is in the upright state, the space for moving the engagement piece is provided. Without moving, when the lid is strongly closed, or when the container falls down, a moving body is arranged to move to the moving space of the engagement piece, and the regulating means is configured. When the lid is strongly closed by this configuration, the movement of the engagement piece is restricted by the moving body so that the lid does not close at a stretch, and even when the body falls down, The movement of the engagement piece is restricted so that the lid does not open.

According to a seventh aspect of the present invention, in the configuration of the fourth or sixth aspect, the moving space of the engaging piece in which the moving body is moving when the body falls down is provided.
The moving path to the space (moving body mounting chamber) where the moving body is located when the body is in the upright state is configured to have a downward slope, and this structure allows the moving body to quickly move when it falls down. The engaging piece can be moved to the moving space, and in the upright state, the moving body is at a predetermined position that is not the moving space. Can be reliably performed.

The invention described in claim 8 is the invention according to claim 2.
Alternatively, in the electric water heater according to claim 4 or 6, the moving body has a spherical shape, and this structure reduces the moving resistance of the moving body and allows the moving body to move to the moving space quickly and reliably. It is made to become.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an electric water heater according to the present invention will be described below with reference to the drawings. In this description, as shown in FIG. The direction with the hinge is referred to as “rear”, the right direction (upper in FIG. 3) of the electric kettle as viewed from the center of the inner container is referred to as “right”, and the left direction (lower in FIG. 3) is referred to as “left”. .

(First Embodiment) FIG. 1 is a schematic sectional view showing a first embodiment of an electric water heater according to the present invention, and FIG.
FIG. 3 is a schematic cross-sectional view showing a state during the closing operation of the lid of the first embodiment of the electric water heater of the present invention, and FIG. 3 is a plan view showing the first embodiment of the electric water heater of the present invention. FIG. 4 is a perspective view showing the structure near the moving body in FIG.

In FIG. 1, reference numeral 1 denotes a main body, and a cylindrical body 2
And an upper ring 4 for covering the upper part of the inner container 3 for storing a liquid such as water, and a bottom cover 5 for covering a lower part of the body 2. A front portion of the upper ring 4 is a beak portion 6, and projects forward so as to cover an upper portion of the discharge port 7. An engagement portion 9 having a substantially triangular cross section and having a tapered surface 9a is formed at a position of the upper ring 4 facing the lid 8.

A pouring passage 10 for pouring the liquid in the inner container 3 to the outside is provided at a front portion in the main body 1, and its starting end is connected to the bottom of the inner container 3 via a pouring pump 11. ,
The end is the discharge port 7 via the water stop valve 12 at the time of falling and the valve seat 12a.
Connected to. The dispensing pump 11 is driven by an electric motor 13. Reference numeral 14 denotes a heating element mounted on the outer bottom surface of the inner container 3. Although not shown, the temperature of the water in the inner container 3 is heated and boiled by the operation of a temperature sensor or a temperature control device, and the high temperature (about 97 ° C.) Keep warm.

Reference numeral 8 denotes a cover for covering the upper opening of the inner container 3, which is rotatably mounted on a hinge 15 provided at the rear of the upper ring 4. The lid 8 is fitted with an upper lid 16 and a lid cover 17 covering the lower opening thereof.
An inner cover 18 is attached and fixed so as to cover the lower surface of 7.
A long recess 19 is formed on the upper surface of the upper lid 16 on the left and right sides, and a rear half thereof is a peripheral wall 20.

Reference numeral 21 denotes an opening / closing operation lever which is provided in the concave portion 19 and rotates about a shaft 22. The operation lever 2 has a substantially L-shaped cross section having a horizontal portion and a vertical portion.
Reference numeral 3 faces the upper surface of the upper lid 16, and the opening / closing piece 24, which is a vertical part, is configured to be able to press against the engaging rib 26 provided on the engaging piece 25. When the lid 8 is opened, there is a gap between the peripheral wall 20 of the recess 19 and the operation knob 23 so that the finger can be put on the lower surface of the operation knob 23.

The engagement piece 25 is slidably provided in the front-rear direction, and its front end has a tapered surface 25 having a triangular cross section.
a, and is urged forward by an engagement spring 27 so that the tapered surface 25a projects from a through hole 29 provided in a vertical portion of the lid cover 17 facing the tapered surface 25a.
Is closed so as to overlap with the lower surface of the engaging portion 9 of the upper ring 4 in the closed state.

Although the engaging piece 25 is not shown to have a predetermined sliding distance in the front-rear direction, the lid cover 17
A suitable regulating piece such as a rib is provided between the engaging piece 25 and the engaging piece 25. 1, a clockwise rotation force is always applied to the opening / closing operation lever 21 through the engagement rib 26 by the engagement spring 27, and when the lid 8 is closed, the opening / closing operation lever 21 is in a predetermined position. A stop rib 28 extending upward from the bottom of the recess 19 is provided for stability.

In order to open and close the lid 8, it is necessary that the engaging piece 25 can move rearward, and the space in which the engaging piece 25 can move is defined as "moving space". Further, a state in which the lid 8 is closed with the body in the upright state as shown in FIG. 1 will be referred to as an “initial state”.

Reference numeral 30 denotes a moving body storage chamber, which is constituted by a moving body mounting chamber 31 and a moving body moving chamber 32. Moving body moving room 32
Are U-shaped ribs 33 provided on the lid cover 17 so as to surround the side surface of the moving space behind the engaging piece 25, and regulating ribs 34 projecting downward from the recesses 19 of the upper lid 16 above the moving space. And the engagement piece 25 at the rear surface. That is, the moving space of the moving body moving chamber 32 and the moving space of the engagement piece 25 is a shared space.

The moving body mounting chamber 31 is a moving body moving chamber 32.
, A concave portion 35 is provided in the lid cover 17 to form the movable body mounting chamber 31. The moving body storage chamber 30 houses a moving body 36 that can freely move between the moving body mounting chamber 31 and the moving body moving chamber 32 above the moving body mounting chamber 31. When the lid 8 is in the initial state, the moving body 36 is moved. Is in the moving body mounting chamber 31 due to its own weight.

Since the moving body mounting chamber 31 does not have a shared space with the moving space, the movement of the engagement piece 25 is not restricted, and the lid 8 can be opened and closed. When the moving body 36 is in the moving body moving chamber 32 which is also a moving space, the movement of the engaging piece 25 is restricted, so that the opening and closing operations of the lid 8 cannot be performed.

A silicone rubber packing 37 having a U-shaped cross section is mounted on the periphery of the inner lid 18.
The space between the inner lid 18 and the lid cover 17 is fixed with a space and watertight by fixing means such as screws. This space serves as a steam passage 38, one of which communicates with the inside of the inner container 3 through a small hole 39 provided in the inner lid 18, and the other is provided in the upper lid 16 through a valve accommodating chamber 40 formed by the inner lid 18 and the lid cover 17. It communicates with the outside through the steam discharge hole 41.

A water stop valve 42 is vertically movably accommodated in the valve accommodating chamber 40, and a valve seat 42a communicating with the steam discharge hole 41 is provided above the water shutoff valve 42, and the valve seat 42a is normally opened. The valve seat 42a is closed when it falls down. When the lid 8 is closed, the packing 37 is in close contact with the upper opening flange of the inner container 3 so that the inner container 3 and the inner lid 1 are closed.
It becomes watertight for 8 spaces.

Next, the operation of the electric water heater according to the first embodiment of the present invention will be described.

In the electric water heater having the above structure, FIG.
In order to open the lid 8 and to fill the inner container 3 with water from the initial state, first put the finger on the lower surface of the operation knob 23 of the opening / closing operation lever 21 and rotate it around the shaft 22 so as to pull it upward. The opening / closing piece 24 integral with the operation knob 23 also rotates the shaft 22 in the counterclockwise direction around the shaft 22, and the engagement rib 26 is pressed backward against the spring force of the engagement spring 27 to follow the rotation. The mating piece 25 moves rearward, and the tip of the engaging piece 25 is disengaged from the fitting portion on the lower surface of the engaging portion 9 provided on the upper ring 4 to open the lid 8. The lid 8 can be held when it is opened 90 degrees or more. At this time, when the operation knob 23 is released, the engagement piece 25 and the opening / closing operation knob 23 return to their original positions by the spring force of the engagement spring 27.

Here, the inner container 3 is filled with water and the lid 8 is closed. In a normal use mode, the tapered surface 9a provided at the position shown in FIG. ,
25a is temporarily stopped at a position where it first comes into contact with the cover 25a (the state in FIG. 2 is referred to as a state before the lid closing operation). The downward force is a force for moving the engagement piece 25 backward by the action of the tapered surfaces 9a, 25a. As a result, the engagement piece 25 is retracted against the spring force of the engagement spring 27, and
Of the engaging spring 2 at the point where it has climbed over the peak of the tapered surface 9a
The engagement piece 25 is advanced by the spring force of 7, so that the engagement piece 25 is fitted to the lower surface of the engagement portion 9 and the lid 8 can be completely closed. (When the lid 8 is opened and closed, the movable body 36 is in the movable body mounting chamber 31 and the movement of the engagement piece 25 is not restricted, so that the lid 8 can be freely opened and closed.) Thereafter, when the power is turned on, The water in the inner container 3 is heated and boiled by the heating element 14,
Insulated at high temperatures. The steam during heating is applied to the small holes 3 in the inner lid 18.
9, the steam passage 38, the valve chamber 40 and the valve seat 42a
Through the vapor hole of the upper lid 16. At the time of tapping, when a tap switch (not shown) provided above the beak portion 6 of the upper ring 4 is pressed, the electric motor 13 rotates to drive the pouring pump 11 and the hot water in the inner container 3 is discharged. Hot water is discharged from the discharge port 7 through 10.

When the body falls, the hot water in the inner container 3 tries to leak to the outside through the pouring path 10 and the steam passage 38. The water shutoff valves 12, 42 move toward the valve seats 12a, 42a and are held in position by hydraulic pressure, blocking the spout 10 and the steam passage 38 to prevent leakage of hot water. When the body is raised (in the upright state), the water stop valves 12 and 42 at the time of overturn return to their original positions and can be used as usual.

Considering the case where the lid 8 is to be closed vigorously, the tapered surfaces 9a and 25a provided on the engaging portion 9 and the engaging piece 25 respectively vigorously collide with each other, and the impact force causes the engagement. The user attempts to close the lid 8 by pushing the piece 25 backward, but the moving body 36 in the moving body mounting portion is moved to the moving body moving chamber 32 above it by inertia (in the direction of arrow A) ( The water stop valve 42 at the time of overturning of the valve storage chamber 40 also moves toward the valve seat 42a due to the inertial force), that is, since the moving body 36 is located in the moving space of the engaging piece 25, the engaging piece 25 is As a result, the lid 8 does not close and temporarily stops in the state shown in FIG. The movement stops before the so-called lid closing operation.

In this state, the upper opening of the inner container 3 and the lid 8
There is a gap between the inner packing 3 and the surrounding air having a low temperature, which is not instantaneously trapped in the inner container 3, so that the spontaneous discharge of hot water in the inner container 3 can be prevented. In addition, the state where the lid 8 is once stopped (the state before the lid closing operation).
, The moving body 36 is under its own weight and the original moving body mounting chamber 31
(The water stop valve 42 at the time of overturning has also returned to the original position), so that the lid 8 can be completely closed by pushing the lid 8 from above.

(Second Embodiment) FIGS. 5, 7, 6 and 8 show a moving body 3 of an electric water heater according to the present invention.
6 is a perspective view and a cross-sectional view showing the structure around 6. Only the engagement piece 25 and the periphery of the moving body storage chamber 30 are different from those in the first embodiment. Will be described with the same reference numerals.

The engagement piece 25 shown in FIGS.
6 shows an embodiment in which the width in the left-right direction is wider than the engagement piece 25 in FIG. 6, and the operation and operation are exactly the same, and the same portions are denoted by the same reference numerals and detailed description is omitted.

In FIGS. 5 to 8, reference numeral 33 denotes the lid cover 1.
A U-shaped rib protruding upward from 7 is formed so as to include a moving space behind the engaging piece 25.
Reference numeral 34 denotes a regulating rib projecting downward from the recess 19 of the upper lid 16 and facing above the moving space. The regulating rib 34, the U-shaped rib 33, the lid cover 17, and the engaging piece 25
The space surrounded by the rear surface is the movable body storage chamber 30, and approximately the upper half of the storage chamber is the movable body movable chamber 32, which also serves as a movement space for the engagement piece 25. A substantially lower half of the moving body storage chamber 30 is a moving body mounting chamber 31.

The moving body 36 housed in the moving body housing chamber 30 is composed of the moving body mounting chamber 31 and the moving body moving chamber 3 above it.
In the initial state of the lid 8, the movable body 36 is in the movable body mounting chamber 31 by its own weight, and at this time, the movable body 36 can be opened and closed. In order not to hinder the movement of the engagement piece 25, that is, so that the moving body mounting chamber 31 does not become a moving space, the moving body mounting chamber 31
And a rib-shaped stopper 51 is provided in the recess 50 so that the moving body 36 does not move.

The operation is basically the same as in the first embodiment. That is, when the lid 8 is to be vigorously closed, the tapered surfaces 9a and 25a provided on the engagement portion 9 and the engagement piece 25 respectively vigorously collide with each other, and the impact force pushes the engagement piece 25 backward. Although the lid 8 is to be closed, the moving body 36 in the moving body mounting portion is moved to the moving body moving chamber 32 above it by the inertia force (in the direction of arrow A) (the valve housing chamber 40 is overturned). The water stop valve 42 also moves toward the valve seat 42a due to inertial force), that is, since the moving body 36 is located in the space for moving the engaging piece 25, the engaging piece 25 cannot move rearward and the lid 8 Does not close and temporarily stops in the state of FIG.

The movement stops before the so-called lid closing operation. In this state, there is a gap between the upper opening of the inner container 3 and the packing 37 of the lid 8, and the surrounding low-temperature air is not instantaneously trapped in the inner container 3. Natural discharge of hot water can be prevented.

In a state where the lid 8 is temporarily stopped (a state before the lid closing operation), the movable body 36 returns to the original movable body mounting chamber 31 by its own weight (water stoppage when falling down). Valve 42
Is also returned to the original position), so that the lid 8 can be completely closed by pushing the lid 8 from above. In the normal opening and closing operation of the lid 8, the moving body 36 is
Since it is located in the moving object mounting chamber 31 which is not the moving space of the moving member 5, the lid 8 can be opened and closed.

(Third Embodiment) FIGS. 9 and 10,
FIG. 11 is a perspective view and a sectional view showing the structure near a moving body 36 of a third embodiment of the electric water heater of the present invention. Only around 30 is different, and therefore, the description other than that portion is omitted and the same portions are denoted by the same reference numerals.

9 to 11, reference numeral 33 denotes a U-shaped rib provided so as to protrude upward from the lid cover 17 and is formed so as to include a moving space behind the engaging piece 25. Reference numeral 34 denotes a regulating rib projecting downward from the recess 19 of the upper lid 16 and facing above the moving space. A left and right elongated space surrounded by the regulating rib 34, the U-shaped rib 33, the lid cover 17, and the rear surface of the engagement piece 25 is a moving body storage chamber 3.
It becomes 0.

The moving body storage chamber 30 is composed of a moving body mounting chamber 31 at the center and moving body moving chambers 32 on both sides thereof. When the moving body 36 is in the moving body mounting chamber 31, the engaging pieces 25 are arranged so that the engaging piece 25 does not hit the moving body 36, that is, the moving body mounting chamber 31 does not become a moving space.
The recessed portion 6 is provided at a portion of the rear portion facing the movable body mounting chamber 31.
0, and a rib-shaped stopper 61 is provided on the lid cover 17 so that the moving body 36 does not move into the recess 60.

With this configuration, the moving body 36 in the moving body storage chamber 30 can freely move between the moving body mounting chamber 31 and the moving body moving chamber 32. Since the moving body moving chamber 32 is shared with the moving space, the moving body 36 is
2, the movement of the engagement piece 25 is restricted, so that the opening or closing operation of the lid 8 cannot be performed. The moving passage 62 of the moving body 36 from the moving body moving chamber 32 to the moving body mounting chamber 31 has a downward slope.

In operation, in the initial state of the lid 8, the moving body 36 in the moving body storage chamber 30 is always moved downward because the moving passage 62 is inclined downward toward the moving body storage chamber 30. It is located in. In this position, since the movement of the engagement piece 25 is not restricted, the opening operation of the lid 8 can be performed.

Even when the lid 8 is closed, the moving body 36 is located in the moving body mounting chamber 31 and the movement of the engagement piece 25 is restricted before the lid closing operation shown in FIG. Since there is no such operation, the closing operation of the lid 8 is possible. That is, usually the moving object 3
Opening / closing operation of the lid 8 can be freely performed regardless of the presence of the cover 6.

Now, suppose that the vessel has fallen, and it is assumed that the vessel has just fallen to the right. In this case, the moving body 36 that has been in the moving body mounting chamber 31 has moved to the moving body moving chamber 32 in the right direction (the direction of the arrow B) along the moving path. In this state, since the moving body 36 is located in the moving body moving chamber 32 which is also a moving space of the engaging piece 25, the movement of the engaging piece 25 is restricted, so that the lid 8 does not open.

When the body has rolled over to the left, the moving body 36 moves leftward (in the direction of arrow C) along the moving passage 62, contrary to the above.
And the lid 8 cannot be opened on the same principle as described above. When the body is overturned, this state is maintained. When the body is returned to the upright state, the moving body 36 returns from the moving body moving chamber 32 to the moving body mounting chamber 31 along the moving passage 62 and the lid The body 8 can be opened and closed. In other words, the impact when the body falls, or the inadvertent operation knob 2 when it falls
The cover 8 does not open even if the user touches 3.

(Fourth Embodiment) FIGS. 12 and 1
3 and 14 are a perspective view and a sectional view showing the structure near a moving body 36 of an electric water heater according to a fourth embodiment of the present invention. Only the periphery of the room 30 is different, and the description of the other parts will be omitted and the same parts will be described with the same reference numerals.

In FIGS. 12 to 14, reference numeral 33 denotes a U-shaped rib provided so as to protrude upward from the lid cover 17, and is formed so as to include a moving space behind the engaging piece 25. Reference numeral 34 denotes a regulating rib projecting downward from the recess 19 of the upper lid 16 and facing above the moving space. A left and right elongated space surrounded by the regulating rib 34, the U-shaped rib 33, the lid cover 17, and the rear surface of the engagement piece 25 is a moving body storage chamber 3.
It becomes 0.

The moving body storage room 30 is provided with the moving body moving room 3.
2 and the moving body mounting chamber 31, and the moving body mounting chamber 31 is located at the lower center of the moving body housing chamber 30. When the moving body 36 is in the moving body mounting chamber 31, the lower part of the engaging piece 25 is located on the lower rear side so that the engaging piece 25 does not hit the moving body 36, that is, the moving body mounting chamber 31 does not become a moving space. A recess 70 is provided in a portion facing the moving body mounting chamber 31 and a rib-shaped stopper 71 is provided on the lid cover 17 so that the moving body 36 does not move to the recess 70.

With this configuration, the moving body 36 in the moving body storage chamber 30 can freely move between the moving body mounting chamber 31 and the upper part of the moving body mounting chamber 31 and between the moving body moving chambers 32 in the horizontal direction. it can. Since the moving body moving chamber 32 is also a moving space for the engaging piece 25, when the moving body 36 is in the moving body moving chamber 32, the movement of the engaging piece 25 is restricted.
Cannot be opened or closed.

Since the moving body mounting chamber 31 is not a space for moving the engaging piece 25, when the moving body 36 is in the moving body mounting chamber 31, the movement of the engaging piece 25 is not restricted. The opening and closing operation of the body 8 is free. In addition, the moving body storage room 30
The moving passage 72 of the moving body 36 going from the left and right direction to the moving body mounting chamber 31 has a downward slope. Therefore, the moving body 36 is always in the moving body mounting chamber 31 in the upright state of the body.

In the initial state of FIG. 1, which is a normal use state, the moving body 36 is always in the moving body mounting chamber 31, so that the movement of the engagement piece 25 is not restricted. There is no problem with the opening and closing operation of the body 8. here,
When the lid 8 is strongly closed, the moving body mounting chamber 31 is closed.
Of the moving body 36 is moved by the inertia force to the moving body moving chamber 32 (in the direction of arrow A), which is also the moving space of the upper engaging piece 25, so that the moving body 36 is closed as described in the first embodiment. For the same reason as described above, the movement of the engaging piece 25 is restricted, and the engaging piece 25 is stopped before the lid closing operation shown in FIG. 2, and the lid 8 is not closed.

Therefore, spontaneous discharge of hot water in the inner container 3 due to rapid sealing can be prevented. In addition, when the movable body 36 is in a stationary state before the lid closing operation, the inertia force of the movable body 36 is lost, and the movable body 36 returns to the movable body mounting chamber 31 located therebelow, so that the front part of the lid 8 is pushed with a fingertip. Thus, the lid 8 can be closed.

When the vessel falls, it is assumed that it has now fallen to the right. In this case, the moving body 36 that has been in the moving body mounting chamber 31 moves to the moving body moving chamber 32 in the right direction (the direction of the arrow B) along the moving passage 72. In this state, since the moving body 36 is located in the moving body moving chamber 32 which is also a moving space for the engaging piece 25, the movement of the engaging piece 25 is restricted, so that the lid 8 does not open.

When the body falls to the left, the moving body 36 moves to the left (in the direction of arrow C), contrary to the above, and the lid 8 does not open on the same principle as described above. When the body is overturned, this state is maintained, and when the body is returned to the upright state, the moving body 36 returns from the moving body moving chamber 32 to the moving body mounting chamber 31 and the lid 8 can be opened and closed. It becomes a state. That is, when falling, the impact does not cause the lid 8 to open, nor does the lid 8 open even if the operator accidentally touches the operation knob 23.

By making the shape of the moving body 36 spherical, the movement resistance of the moving body 36 moving in the moving passage 72 is reduced, and when the lid 8 is closed with vigor or the body falls down. Sometimes, the moving body 36 moves quickly to the moving body moving chamber 32, and when the moving body 36 is in the upright state, it moves smoothly to the original moving body mounting chamber 31.

Further, the material of the moving body 36 is more preferably made of stainless steel balls in consideration of rust resistance in order to make it less likely to receive air resistance during movement. The moving body 36
Is common to all the embodiments of the present invention.

(Fifth Embodiment) FIGS. 14 and 1
FIGS. 5 and 16 are a perspective view and a sectional view showing a structure near a moving body 36 of an electric water heater according to a fifth embodiment of the present invention. Only the periphery of the room 30 is different, and the description of the other parts will be omitted and the same parts will be described with the same reference numerals.

In FIG. 14, FIG. 15 and FIG.
Reference numeral 3 denotes a U-shaped rib provided so as to protrude upward from the lid cover 17 and is formed so as to include a moving space behind the engaging piece 25. Reference numeral 34 denotes a regulating rib projecting downward from the recess 19 of the upper lid 16 and facing above the moving space. The regulating rib 34, the U-shaped rib 33, and the engaging piece 2
5 The moving body moving chamber 32 is an elongated space to the left and right surrounded by the rear surface.
Is configured.

A recess 80 is provided in the lid cover 17 facing the lower surface of the moving body moving chamber 32 to form the moving body mounting chamber 31. The moving body storage chamber 30 is provided with the moving body mounting chamber 31.
And the movable body 32 housed in the movable body storage chamber 30 can freely move between the movable body movable chamber 32 and the movable body mounting chamber 31.

Since the moving body moving chamber 32 is also a space for moving the engaging piece 25, when the moving body 36 is in the moving body moving chamber 32, the movement of the engaging piece 25 is restricted. Or the closing operation cannot be performed. Since the moving body mounting chamber 31 is not a space for moving the engaging piece 25, when the moving body 36 is in the moving body mounting chamber 31, the movement of the engaging piece 25 is not restricted. Opening and closing operations are free. Further, the moving passage 82 of the moving body 36 from the left and right direction of the moving body storage chamber 30 to the moving body mounting chamber 31 has a downward slope, so that the moving body 36 is always mounted on the moving body 36 in the upright state of the body. It is in room 31.

The operation and operation are basically the same as those of the fourth embodiment, and the description is omitted.

The present invention is not limited to the above embodiment, and various configurations other than those shown in the above embodiment can be adopted within the scope of the present invention. For example, a U-shaped rib projecting upward from the lid cover can be replaced with another part, and a regulating rib prevents the moving body from jumping upward and obstructs the movement of the engagement piece. Therefore, it may be provided integrally with the engagement piece. In short, in normal use, the moving object is in the moving object mounting room and the lid can be freely opened and closed.When the lid is strongly closed or the body falls down, the moving object moves What is necessary is just to set it as the structure which moves to a movement chamber and restricts movement of an engagement piece.

Further, if the width of the engaging piece is small, the engaging force between the lid and the main body is weakened and the lid is easily wobble, and the gap between the lid and the main body becomes large. As shown in FIG. 8, the width of the engaging portion may be increased by making the front portion of the engaging piece bifurcated or increasing the width of the engaging piece. It is also effective to use a plurality of moving bodies in the width direction of the engagement pieces to ensure the reliability.

Further, in this embodiment, the opening / closing operation knob is formed as a separate component from the engaging piece. However, it is also possible to integrate this with the engaging piece. The object of the present invention can be achieved by restricting the movement of the portion corresponding to the opening / closing operation knob.

The tapping method of the electric water heater includes, for example, a manual air pump type other than the electric pump type as in the present embodiment, but the present invention can of course be applied to them.

[0073]

Since the electric water heater of the present invention has the above-mentioned structure, the invention according to the first aspect is characterized in that when the lid of the electric water heater is strongly closed, the restricting means moves the engaging piece. The inner pressure in the inner container rises at a stretch and the hot water in the inner container does not spontaneously discharge from the spouting path, which may cause burns or a table around the container.
There is no danger of flushing tatami mats and carpets.

Further, according to the second aspect of the present invention, the effect of the first aspect of the present invention can be obtained with a simple configuration in which the regulating means only adds one moving body, so that it is cost effective. It is.

According to the third aspect of the present invention, when the body of the electric water heater falls down, the regulating means regulates the movement of the engagement piece so as not to open the lid, so that the lid is opened. There is no danger of burns due to the outflow of hot water in the vessel and the possibility of flooding tables, tatami mats, carpets, etc. around the vessel. Further, even when the opening / closing operation lever is touched during the fall, the lid does not open.

Further, the invention according to claim 4 is advantageous in terms of cost with a simple configuration in which the regulating means only adds one moving body.

Further, according to the fifth aspect of the invention, the effects of the first and third aspects can be simultaneously obtained.

Further, the invention according to claim 6 is advantageous in terms of cost because the effect of claim 5 can be obtained with a simple structure in which the regulating means only adds one moving body. Becomes

According to the seventh aspect of the present invention, since the moving passage has a downward slope toward the moving body mounting chamber, the moving body is reliably located in the moving body mounting chamber when in the upright state. Therefore, the opening and closing of the lid can be reliably performed without malfunction. In addition, when the body falls, the moving body surely moves using the moving passage as a guide to the moving body moving chamber, which is a space for moving the engaging piece, so that the movement of the engaging piece is restricted and the lid is opened. Can be reliably prevented.

According to the eighth aspect of the invention, since the rolling resistance and the moving resistance of the moving body are reduced, the operation of moving the moving body to the moving body moving chamber or returning to the moving body moving chamber can be performed smoothly. Thus, the movement of the engagement piece can be restricted and released quickly without malfunction.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a first embodiment of an electric water heater according to the present invention.

FIG. 2 is a schematic sectional view showing a state in the course of a closing operation of a lid of the electric water heater of FIG.

FIG. 3 is a plan view showing a first embodiment of the electric kettle of the present invention.

FIG. 4 is a perspective view showing a structure near a moving body of the electric kettle of FIG. 1;

FIG. 5 is a perspective view showing a structure near a moving body of an electric water heater according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along line PP of FIG. 5;

FIG. 7 is a perspective view showing a structure near a moving body according to another embodiment of the electric kettle of the second embodiment of the present invention.

FIG. 8 is a sectional view taken along line QQ of FIG. 7;

FIG. 9 is a perspective view showing a structure near a moving body of an electric water heater according to a third embodiment of the present invention.

FIG. 10 is a sectional view taken along line RR of FIG. 9;

FIG. 11 is a sectional view taken along line SS in FIG. 9;

FIG. 12 is a perspective view showing a structure near a moving body of an electric water heater according to a fourth embodiment of the present invention.

FIG. 13 is a sectional view taken along line VV of FIG.

FIG. 14 is a perspective view showing a structure near a moving body of an electric water heater according to a fifth embodiment of the present invention.

FIG. 15 is a sectional view taken along line TT in FIG. 14;

FIG. 16 is a sectional view taken along line UU of FIG. 14;

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 Inner container 7 Discharge port 8 Lid 9 Engagement part 16 Upper lid 17 Lid cover 25 Engagement piece 30 Moving body storage chamber 31 Moving body placement chamber 32 Moving body moving chamber 33 U-shaped rib 34 Restriction rib 36 Movement Body 38 Steam passage 12, 42 Water stop valve when overturned

Claims (8)

[Claims] 1. A main body having a built-in inner container and a spouting channel for discharging a solution in the inner container to the outside, and a lid pivotally supported by the main body and covering an inner container opening, the lid having a lid An engagement piece that engages with the main body when the body is closed, and a fall stop valve that closes a steam passage that discharges steam generated in the inner container to the outside when the body falls, and a lid that is closed by moving the engagement piece. An electric water heater in which the body and the main body are disengaged from each other, wherein the electric water heater is provided with a restricting means for restricting the movement of the engaging piece when the lid is strongly closed. 2. When the lid is closed, it does not move to the moving space of the engaging piece, but moves so as to move to the moving space of the engaging piece when the lid is strongly closed. 2. The electric water heater according to claim 1, wherein a body is provided to constitute said regulating means. 3. A main body having a built-in inner container and a spouting channel for discharging a solution in the inner container to the outside, and a lid which is pivotally supported by the main body and covers an opening of the inner container. An engagement piece that engages with the main body when the body is closed, and a fall stop valve that closes a steam passage that discharges steam generated in the inner container to the outside when the body falls, and a lid that is closed by moving the engagement piece. In the electric water heater where the body and the body are disengaged and disengaged, when the body falls down,
An electric water heater having a regulating means for regulating movement of an engagement piece. 4. A moving body is provided so as to move to the movement space of the engagement piece when the body falls, and not to move to the movement space of the engagement piece when the body is in the upright state. 4. The electric water heater according to claim 3, wherein said regulating means is constituted. 5. A main body having a built-in inner container and a spouting channel for discharging a solution in the inner container to the outside, and a lid which is pivotally supported by the main body and covers an opening of the inner container. An engagement piece that engages with the main body when the body is closed, and a fall stop valve that closes a steam passage that discharges steam generated in the inner container to the outside when the body falls, and a lid that is closed by moving the engagement piece. In the electric water heater in which the body and the main body are disengaged from each other, a regulating means for regulating the movement of the engaging piece is provided when the lid is strongly closed and the vessel falls down. And an electric water heater. 6. When the lid is closed, or when the container is in the upright state, the lid does not move to the moving space of the engagement piece, and when the lid is strongly closed, or 6. The electric water heater according to claim 5, wherein a moving body is provided so as to move to a space for moving the engaging piece when the body falls down, thereby constituting the restricting means. 7. A space where the moving body is located when the body is in the upright state (moving body mounting chamber) from a movement space of the engagement piece in which the moving body is moving when the body is overturned. The moving path to the vehicle has a downward slope.
Or the electric kettle according to claim 6. 8. The electric water heater according to claim 2, wherein the shape of the moving body is spherical.