JPH0427452Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to an electric heating container equipped with an electric rice cooker, an electric pot, etc., whose lid unit can be easily opened and whose lid unit can be removed. .

<Problems to be solved by conventional techniques and ideas> In electric heating containers such as electric rice cookers and electric pots, an inner pot is housed in the electric heating container body, and an inner lid that covers the inner pot is used for electrical heating. It is provided on a lid unit that is attached to the container body so that it can be opened and closed.
Such an electric heating container is provided with a hinge mechanism at a predetermined position to support the lid unit so as to be openable and closable, and a locking means for maintaining the lid unit in the closed state is provided at a position opposite to the hinge mechanism.

Conventionally, as shown in FIG. 8, the above-mentioned locking means includes a locked portion 91 provided on an electrically heated container body 90, and a hook 92 that can be locked on this locked portion 91.
A lock lever 93 having a lower end is attached to the mounting pin 9.
4 to the lid unit 95. Further, a lock release button 96 serving as a lock release operation section for rotating the lock lever 93 to release the lock is provided at the upper front end of the lid unit 95. And this lock release button 9
6 is supported by the lid unit 95 so as to be movable in the vertical direction, and the lock release button 9
When 6 is pressed downward, the lock lever 93 rotates around the attachment pin 94, and the locked state between the hook 92 and the locked portion 91 is released.

However, in the electric heating container described above, the lock release button 96 is provided on the lid unit 94;
Moreover, since the lock is released by pressing down on the lock release button 96, the direction of the pressing operation for releasing the lock is opposite to the direction of opening the lid unit, which poses a problem that it is difficult to open the lid unit 94.

As shown in FIG. 9, an electric heating container that addresses such problems is equipped with a lock release button 96.
An electric heating container body 90 is provided with the following on its side. However, in this electric heating container, since the direction in which the lock release button 96 is pressed is horizontal, the electric heating container main body 90 moves sideways every time the lock release button 96 is pressed, making it difficult to open the lid. However, at the same time as the electric heating container mentioned above, there was a problem that it was not easy to use.

Furthermore, in the conventional electric heating container described above, the hinge unit is attached to the lid unit and the main body of the electric heating container by screws or the like, so the lid unit cannot be easily removed from the main body of the electric heating container. When cleaning the lid unit, etc., there is a problem that the work efficiency is poor.

Therefore, in view of the above-mentioned problems, the object of this invention is to provide an electric heating container in which the lid unit can be easily opened and the lid unit can be easily removed.

<Means for Solving the Problems> In order to achieve the above object, the electrically heated container of this invention has a lid unit attached to the electrically heated container body via a hinge mechanism, and a locking means for locking the lid unit in a closed state. However, in an electric heating container provided on the side opposite to the hinge mechanism, the lock release operation part of the locking means is attached to the main body side of the electric heating container, and the hinge mechanism includes:
The device is characterized in that an elastic member for biasing the lid unit in the opening direction is built-in, and the lid unit is removably connected to the hinge mechanism.

<Function> According to the electric heating container configured as described above, the lock release operation part of the locking means is attached to the electrical heating container main body side, and the hinge mechanism is also attached to the electrical heating container main body side. Then, only the lid unit is removed from the hinge mechanism. That is, the elastic members such as springs built into the hinge mechanism, the mounting screws, the springs built into the unlocking operation section, etc. are all attached to the main body of the electric heating container. Only the lid unit can be removed from the lock release operation section and hinge mechanism attached to the main body. Therefore, the lid unit does not include any members such as springs, and the lid unit is easy to clean. For example, the lid unit can be completely washed with water, and there is no problem with washing it with water.

<Examples> Hereinafter, examples will be described in detail with reference to the accompanying drawings showing examples.

FIG. 1 is a longitudinal sectional view showing an electric rice cooker as an example of the electric heating container of this invention, and FIG. 2 is a plan view. The electric rice cooker has an outer case 1 that includes a cylindrical side member 11 made of a thin metal plate, a synthetic resin bottom member 12 formed on the lower side of the side member 11, and a bottom member 12 made of synthetic resin. It is formed by a synthetic resin shoulder member 13 formed on the upper side. A lid unit 2 is provided on the upper part of the outer case 1 via a hinge mechanism 5 so as to be openable and closable. A cylindrical inner container 3 is provided inside the outer case 1, and an inner pot 4 for cooking rice is provided inside the inner container 3.
The inner container 3 and the outer case 1 constitute an electric rice cooker main body 10.

A heat insulating material 14 and a heat insulating plate 15 are provided between the inner container 3 and the side member 11 to prevent heat radiation from the inner pot 4. In addition, the inner container 3
A center sensor 31 is provided in a penetrating portion formed in the center of the bottom surface of the inner pot 4 , and a hot plate 32 is provided between the bottom surface of the inner pot 4 and the inner container 3 . An annular bottom heater 33 serving as a heating element that directly heats the center sensor 31 is buried in a state surrounding the center sensor 31 .

The lid unit 2 is formed into a hollow structure by a lid cover 20 on the top surface and a partition member 21 inside, and a cylindrical one-touch pin 24 having a pressure regulating port 23 is provided in the center. An inner lid 25 is removably attached to the lower end of the one-touch pin 24, and the inner pot 4 is closed by the inner lid 25.

As shown in FIGS. 3 to 5, the hinge mechanism 5 is located at the rear of the outer case 1 (on the right side of FIG. 1).
A support portion 51 is provided at the upper end, and a hinge pin 52 is attached to the support portion 51. A connecting portion 53 is rotatably attached to the hinge pin 52.
This connecting portion 53 is inserted into a mounting portion 26 formed at the rear end of the lid unit 2. Mounting part 26
As shown in FIG. 4, grooves 26a are formed in opposing sides, and the sides of the connecting portion 53 are fitted into the grooves 26a, so that the connecting portion 53 can be removed from the mounting portion 26. Possibly installed. Therefore, the lid unit 2 is rotatably attached to the electric rice cooker main body 10 via the hinge mechanism 5 such as the connecting portion 53, the hinge pin 52, and the support portion 51. The lid unit 2 is removably connected to the hinge mechanism 5.

The connecting portion 53 of the hinge mechanism 5 is formed hollow inside, and has a built-in locking member 55 for the lid cover 20 on the distal end side. Locking member 55
A hook 55a protruding from the upper surface of the connecting portion 53 is formed at one end, and this hook 55a is locked into a locking hole 20a formed in the lid cover 20, and the connecting portion 53 is removed from the mounting portion 26. is prevented. The other end 55b of the locking member 55 is pivotally supported by a pin 56 provided in the connecting portion 53, and a torsion spring 57 attached to the pin 56 causes the hook 55a to Locking hole 2
It is biased so that it does not deviate from 0a. Also,
The intermediate portion of the locking member 55 is bent upward in a U-shape and protrudes toward the upper surface side of the connecting portion 53, and the protruding portion forms a push button portion 55c. Therefore, when the push button portion 55c is pressed, the hook 55 locked in the locking hole 20a is released.
a is removed from the locking hole 20a, and the connecting portion 53 can be taken out from the mounting portion 26.

A slider 57 that slides on the support portion 51 and applies a brake to the rotation of the connection portion 53 is provided in a protruding manner on the side wall 53 a of the connection portion opposite to the support portion 51 . This slider 57 has a compression spring 58 in the direction of the support portion 51.
, and an appropriate pressing force is applied to the support portion 51. The above-mentioned braking force is gradually increased by forming the distance between the connecting part side wall 53a and the supporting part 51 so that it becomes gradually narrower on the open end side of the lid unit 2 in the range in which the slider 57 slides. can be made stronger.

Further, the hinge pin 52 provided in the support portion 51 is provided with a torsion spring 60 as an elastic member.
is installed. One end 60 of the torsion spring 60
a is inserted into the connecting portion 53, and the other end 60b
is fixed within the support portion 51. Therefore, by this torsion spring 60, the connecting portion 53
However, in FIG. 5, the lid unit 2 is urged to rotate clockwise around the hinge pin 52, and the lid unit 2 can be urged in the opening direction. In addition, torsion spring 6
0, the rotation of the torsion spring 60 is fixed by an adjustment screw 61 screwed into the support portion 51, and the rotation of the torsion spring 60 is fixed by the rotation of the adjustment screw 61. The spring force of the spring 60 can be adjusted.

A locking means 7 for maintaining the closed state of the lid unit 2 is provided on the side facing the hinge mechanism 5, and as shown in FIG.
A locked portion 71 formed at the front end (left side in FIG. 1) of the electric rice cooker body 10 and a lock lever 72 that is attached to the upper front end of the electric rice cooker main body 10 and locked to the locked portion 71. Equipped with lock lever 7
2 has a hook 72a that can be locked to the locked portion 71 at one end, and a lock release operation portion 72b that projects slightly outward from the outer cover 1 and is formed substantially horizontally at the other end. ing. The middle portion of the lock lever 72 is pivotally supported by a pin 73 on the outer cover 1, and a torsion spring 7 attached to this pin 73.
4, the lock lever 72 is biased clockwise about the pin 73 in FIG. Therefore, as long as the hook 72a is locked to the locked portion 71, the locked state is reliably maintained.

In addition, the lock release operation section 7 of the lock lever 72
2b is pressed downward against the elastic force of the torsion spring 74 (see the broken line in FIG. 6), the hook 72a is separated from the locked portion 71 and released from the locked state. can. Therefore, the locking means 7 can be unlocked without the electric rice cooker main body 10 moving.

Since the biasing force of the torsion spring 60 attached to the hinge pin 52 of the hinge mechanism 5 acts on the lid unit 2, when the above lock is released, the lid unit 2 is automatically opened. At this time, as described above, since the slider 57 provided on the connecting part 53 applies a brake to the rotation of the connecting part 53, the impact when the lid unit 2 reaches the open end can be alleviated. I can do it.

Moreover, since the lock release operation section 72b is provided on the side of the electric rice cooker main body 10, the fingers and hands operating these do not get in the way of the rotation of the lid unit 2.

When closing the lid unit 2, when the lid unit 2 is pushed down completely, the locking means 7 is automatically locked. In other words, when the lid unit 2 is pushed down completely, the hook 72a of the lock lever 72, which is biased by the torsion spring 74, again engages the locked portion 7.
1, and the lid unit 2 is in a closed state.

Next, the lid unit 2 can be removed by operating the push button portion 55c provided on the connecting portion 53 of the hinge mechanism 5 while the lid unit 2 is unlocked. Push button part 55c
When the hook 55a is torsionally pushed down against the spring force of the spring 57, the hook 55a that is locked in the locking hole 20a is released.
is removed from the locking hole 20a. When the hook 55a is removed from the locking hole 20a, the connecting portion 53 can be pulled out from the mounting portion 26, and the lid unit 2 can be removed (see FIG. 4). Note that when removing the lid unit 2, the spring force of the torsion spring 60 is acting on the connecting portion 53, so by opening the lid unit 2 to the open end, it is possible to remove the lid unit 2. can be done easily.

When attaching the lid unit 2, the end of the connecting portion 53 is aligned with the groove portion 26a of the attaching portion 26 and inserted. When the connecting portion 53 is pushed all the way in, the hook 55a, which is biased by the torsion spring 57, is moved from the state where it is pressed down by the lid cover 20 during insertion.
It is restored to its original state and is locked in the locking hole 20a.
When the hook 55a is locked in the locking hole 20a, the connecting portion 53 is prevented from coming off, and the lid unit 2 is attached to the electric rice cooker main body 10.

FIG. 7 is a sectional view of a hinge mechanism showing another embodiment.

This hinge mechanism 8, similar to the hinge mechanism 5 described above, inserts and connects a connecting part 82 provided on the electric rice cooker main body 10 side into the lid unit 2, but prevents the connecting part 82 from coming off. The structure for applying a brake to the locking member and the rotation of the lid unit 2 are different.

A hook 8 protruding from the bottom side is provided in the connecting portion 82.
A locking member 84 having a diameter of 4a is provided near the tip within the connecting portion 82. The hook 84a is
It can be locked in a locking recess 26b formed on the bottom surface of the mounting portion 26 of the lid unit 2. Further, the end of the locking member 84 opposite to the hook 84a is bent upward into a U-shape to form a push button portion 84b. The locking member 84 has an intermediate portion rotatably supported, and the push button portion 84
When b is pressed, the hook 84a locks into the locking recess 26b.
It's starting to come off. A plate spring 85 formed in a substantially V-shape is inserted between the hook 84a and the upper inner surface of the connecting portion 82.
is urged toward the locking recess 26b, and the hook 84a
The engagement between the locking recess 26b and the locking recess 26b is reliably maintained.

Further, as a structure for applying a brake on the rotation of the lid unit 2, a torsion spring 86 is attached to a predetermined position of the connecting part 82 facing the supporting part 81. This torsion spring 86 is
One end is fixed within the connecting portion 82, and the other end is pressed against the support portion 81. Therefore, the support part 81
The torsion spring 86 pressed against the supporting portion 81
By slidingly contacting the lid unit 2, it is possible to apply a brake to the rotation of the connecting portion 82 when the lid unit 2 is opened, and it is possible to buffer the impact when the lid unit 2 is opened.

Even if the hinge mechanism 8 of this embodiment is used, the lid unit 2 can be removed in the same way as the hinge mechanism 5 described above. That is, when the lid unit 2 is opened, the locking member 84 provided on the connecting portion 82
Press the push button portion 84b to release the locked state between the hook 84a and the locking recess 26b. Thereby, the connecting part 82 can be taken out from the attachment part 26 of the lid unit 2, and the lid unit 2 can be completely removed from the electric rice cooker main body 10.

The removed lid unit 2 is attached to the support section 81 via the coupling section 82 by inserting the coupling section 82 into the mounting section 26 . The connecting portion 53 attached to the attachment portion 26 of the lid unit 2 is prevented from coming off by the hook 84a of the locking member 84 being locked in the locking recess 26b.

Furthermore, the locking member provided on the connecting portion does not need to be provided as long as the lid unit is prevented from naturally slipping out from the connecting portion when the lid unit is opened.

<Effects of the invention> As described above, according to the electrically heated container of this invention, the lock release operation part of the locking means is attached to the electrically heated container main body side, and the hinge mechanism is also attached to the electrically heated container main body side. installed. The hinge mechanism has a built-in elastic member that biases the lid unit in the opening direction. Therefore, the lid unit can be opened with one touch by the elastic member built into the hinge mechanism by operating the lock release operation section. Further, since the lid unit is removably connected to the hinge mechanism, the lid unit can be removed from the hinge mechanism while the hinge mechanism containing the elastic member etc. remains on the electrical heating container main body side. Therefore, when cleaning the lid unit, the lid unit can be completely washed with water, making the cleaning work easy, and there is no fear of rust or the like.

As described above, this invention has the unique effect that only the lid unit can be removed, and the workability when cleaning the lid unit can be improved.

[Brief description of the drawings]

Fig. 1 is a sectional view of an electric rice cooker showing an embodiment of this invention, Fig. 2 is a plan view of the electric rice cooker, Figs. 3 and 4 are perspective views of the vicinity of the hinge mechanism, and Fig.
The figure is a sectional view of the hinge mechanism, FIG. 6 is a sectional view of the locking means, FIG. 7 is a sectional view of a hinge unit showing another embodiment, and FIGS. 8 and 9 are parts of a conventional electric heating container. FIG. 2... Lid unit, 4... Inner pot, 5, 8... Hinge mechanism, 7... Locking means, 53, 82... Connecting portion, 60... Torsion spring, 72b... Lock release operation section.

Claims (1)

[Scope of utility model registration request] An inner pot and a heating element for heating the inner pot are provided inside the electric heating container body, and a lid unit for closing the inner pot is attached to the electric heating container body via a hinge mechanism, In an electric heating container in which a locking means for locking the lid unit in a closed state is provided on a side opposite to the hinge mechanism, an unlocking operation part of the locking means is attached to the main body side of the electric heating container, and An electric heating container characterized in that the hinge mechanism has a built-in elastic member that biases the lid unit in the opening direction, and the lid unit is removably connected to the hinge mechanism.