JPH10225375A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooker having a reduced manufacturing cost by cutting down on the material cost of a brake-bush. SOLUTION: This rice cooker has a frame body 12 constituting a cylinder like pot storing part 11. A clamp rest 37 is installed, to this frame body 12, at a positional place equal to the upper part of the pot storing part 11. An attaching hole 47, which faces inner part of the pot storing part 11, is formed on this clamp rest 37. A brake-bush 48 has a shape of a horizontal tongue piece. The brake-bush is inserted through this attaching hole 47 from the inside of the pot storing part 11 to the inside of the clamp rest 37 for the purpose of braking down rotation of the pot 13. The insertion is so made that the brake- bush to contact to the outer periphery of a pot 13, which is stored in the pot storing part 11. This brake-bush 48 is fixed to the clamp rest 37 by a fixing plate 51 installed to the inside of the clamp rest 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker for cooking rice by storing rice and water in a pot.

[0002]

2. Description of the Related Art In a rice cooker of this type, a pot storage section is provided in a rice cooker body, and a pan is removably stored in the pot storage section. They cook the rice in the pot and use the rice scoop to make the rice in the pot into a bowl.

[0003] When the rice in the pan is removed, the pan may rotate around in the pan storage part in the circumferential direction. Therefore, in general, the upper part of the inner surface of the pan storage part contacts the outer peripheral surface of the pan. A rubber brake bush is provided to stop the lever from rotating.

FIGS. 8 and 9 show an example of a conventional mounting structure of the brake bush, and FIG. 10 shows another example.
In the example shown in FIGS. 8 and 9, a groove 3 having an open top surface is formed on an upper portion of a frame 2 constituting the pan storage unit 1, and a brake bush 4 is attached to the frame 2 via the groove 3. .
The brake bush 4 has an inverted U at the rear of its main part 4a.
A mounting portion 4 b having a letter shape is integrally provided, and a tip end of the mounting portion 4 b is inserted into the groove 3.

[0005] Reference numeral 5 denotes a pan support.
The tongue 6 is press-fitted into the groove 3, and the brake bush 4 is fixed to the frame 2 by this press-fitting.

As shown in FIG. 9, a pot support 5a different from the pot support 5 is provided at the upper opening edge of the pot storage 1, and these pot supports 5, 5a are stored in the pot storages. The flanges 7a of the pan 7 stored in the pan storage unit 1 are supported by the pan support tables 5, 5a, which are uniformly arranged on the opening edge of the upper part of the part 1.

In the example shown in FIG. 10, the frame 2 constituting the pot storage unit 1 is divided into an outer frame 2a and an inner frame 2b,
A groove 3 having an open bottom surface is formed in a, and a through hole 8 communicating with the groove 3 is formed in the peripheral surface of the outer frame 2a. Then, a brake bush 4 having an L-shaped cross section is inserted into the groove 3 through the through hole 8, and a part of the brake bush 4 projects from the through hole 8 to the outer peripheral side thereof and contacts the outer peripheral surface of the pan 7. It has become.

[0008]

The brake bush 4 is formed of an expensive material such as heat-resistant rubber.
In the conventional structure shown in FIG.
a large one having an inverted U-shaped mounting portion 4b integrally at the rear portion thereof, and the conventional structure shown in FIG. 10 is a large one in which the brake bush 4 has an L-shaped cross section. Also in this case, there is a problem that the material cost of the brake bush 4 increases due to the increase in size, and the cost increases.

The present invention has been made in view of such a point, and an object of the present invention is to provide a rice cooker which can reduce the material cost of the brake bush and reduce the cost.

[0010]

In order to achieve such an object, the present invention has a frame as a first aspect of the present invention, which has a frame constituting a cylindrical pot storage portion. A clamp receiver is attached to the upper part of the pan storage part, and a mounting hole facing the inside of the pan storage part is formed in the clamp receiver,
Through this mounting hole, insert a horizontal tongue-shaped brake bush that contacts the outer peripheral surface of the pan in the pan storage section to prevent rotation of the pan from inside the pan storage section to the inside of the clamp receiver, and clamps the brake bush. It is designed to be fixed to the clamp receiver via fixing means provided inside the receiver, and as a second aspect of the present invention, the frame has a frame constituting a cylindrical pot storage portion, and this frame has A mounting hole is formed at an upper portion of the pan storage section and faces the inside of the pan storage section. Through this mounting hole, from the inside of the pan storage section to the inside of the frame, to the outer peripheral surface of the pan in the pan storage section. A horizontal tongue-shaped brake bush for contacting and preventing the pan from rotating is inserted, and this brake bush is fixed to the frame via fixing means provided inside the frame. In any of the inventions, it is possible to use a fixing plate having a concave notch for locking the brake bush as the fixing means.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. 1 to 6 show a first embodiment. FIG. 1 shows the entire structure of a rice cooker. This rice cooker includes a synthetic resin frame 12 constituting a tubular pot storage unit 11, and a rice cooker is placed in the pot storage unit 11. 13 is housed so that it can be inserted and removed.

The frame body 12 includes a side surface portion 14 surrounding the outer periphery of the pot 13, a horizontal portion 15 extending substantially horizontally from an upper portion of the side surface portion 14 toward the outer peripheral side thereof, and
5 and an outer wall portion 16 extending downward toward the outer peripheral side thereof. An inner frame plate 17 is attached to a lower end of the side surface portion 14, and a bottom plate 18 is attached to a lower end portion of the outer wall portion 16.

The pot 13 is made of a pot main body 21 made of a metal material such as aluminum having excellent heat conductivity, and a magnetic metal material such as ferritic stainless steel joined to an outer surface of a portion extending from the bottom surface to the lower side surface of the pot main body 21. And a heat generating layer 22.

A pot sensor 23 elastically abutting on the outer bottom surface of the pot 13 and penetrating through the inner frame plate 17 is elastically contacted, and the temperature of the pot 13 is sequentially detected by the pot sensor 23. It has become.

On the outer surface of the inner frame plate 17, as a heating means,
An electromagnetic coil 24 formed by spirally winding a litz wire insulated with a resin such as polyurethane is provided corresponding to the heat generating layer 22 of the pan 13. Then, the heat generation layer 22 generates heat by electromagnetic induction by the electromagnetic coil 24, and the pot main body 21 is heated by this heat generation to cook rice.

A lid 27 is provided on the top of the frame 12,
The lid 27 has a rear end pivotally supported by the rear of the frame 12 via a hinge mechanism 28, and a front end removably engages with the front of the frame 12 via a clamp mechanism 29. Has been stopped. On the lower surface of the lid 27, an inner lid 30 for opening and closing the opening at the upper end of the pot 13 is provided, and in the center of the lid 27, a steam port 3 for letting steam for cooking rice escape to the outside.
2 are provided.

A spring 31 is provided on the hinge mechanism 28, and the lid 31 is always elastically urged in the opening direction by the spring 31. When the clamp mechanism 29 is released by this urging force, the lid 27 is automatically turned on. The lid 27 pivots upward about the hinge mechanism 28 and opens.

In the front part of the frame body 12, a concave portion 36 is formed in a part extending from the upper part of the side surface part 14 to the horizontal part 15 as shown in FIG. A clamp receiver 37 is mounted in the recess 36.

The clamp receiver 37 has a front wall 38 arranged along the surface of the side surface portion 14. On the back surface of the front wall 38, a fitting portion 39 for fitting into the recess 36 is formed. ing.

As shown in FIG. 3, engagement grooves 40 are formed on both sides of the concave portion 36, and the engagement grooves 40 are formed on both sides of the fitting portion 39 of the clamp receiver 37 as shown in FIG. 4
The engagement projection 41 corresponding to 0 is formed.

When the clamp receiver 37 is mounted on the frame 12, the clamp receiver 37 is disposed in the pot housing 11 so as to face the concave portion 36 of the frame 12,
7 is moved in the horizontal direction to push the fitting portion 39 into the concave portion 36, and the engagement protrusion 41 is pressed into the engagement groove 40 and locked.

A pan support 44 is provided on the upper end of the clamp receiver 37.
a is integrally formed so as to protrude, and other pot supports 44b are integrally formed at two positions of the horizontal portion 15 of the frame 12, and these three pot supports 44a and 44b are Place evenly along the upper edge of the opening,
The flange 13a of the pan 13 stored in the pan storage section 11 is supported via these pan support bases 44a and 44b.

As shown in FIG. 5, an insertion groove 45 having an open bottom surface is formed in the clamp receiver 37 inside the front wall 38.
Further, a clamping pawl 46 is formed to project obliquely downward on the rear side of the pan support base 44a, and locking holes 43 are formed on both side walls of the insertion groove 45.

In the upper part of the front wall 38, a horizontally long mounting hole 47 is formed adjacent to the lower end of the pan support base 44a and facing the inside of the pan housing portion 11. Brake tongue-shaped small brake bush 4
8 is inserted from the front side of the front wall 38.

A fixing plate 51 as fixing means for fixing the brake bush 48 is inserted into the insertion groove 45 from an open portion on the lower surface thereof. This fixing plate 51
As shown in FIG. 5 and FIG.
A pair of locking legs 54 are formed integrally on both sides of the standing piece 52 so as to be elastically deformable inward from each other. A locking claw 55 protruding toward the body is formed integrally.

FIG. 4 shows two side edges of the brake bush 48.
A notch 58 is formed as shown in FIG. 5, and the notch 58 forms a narrow constricted portion 59. The constricted portion 59 of the brake bush 48 is provided at the upper end of the standing piece 52 of the fixed plate 51.
A concave notch portion 60 is formed, which can be clamped and locked.

The brake bush 48 is clamped to the clamp receiver 37.
First, the brake bush 48 is inserted into the mounting hole 47 from the front side of the front wall 38 to position the constricted portion 59 inside the front wall 38.

Next, the upright piece 52 of the fixing plate 51 is inserted into the insertion groove 45 of the clamp receiver 37 from an open portion on the lower surface thereof. In response to this insertion, the locking claw 55 of the locking leg 54 elastically engages with the edge of the locking hole 43 and the concave notch 6
0 engages the constriction 59 of the brake bush 48.
As a result, the brake bush 48 is fixed to the clamp receiver 37, and the leading edge of the brake bush 48 projects forward of the front wall 38 and elastically contacts the outer peripheral surface of the pot 13. It can be planned.

The clamp mechanism 29 includes an operation button 63
The hook claw 64 is displaceably engaged with the clamp stopper claw 46 of the clamp receiver 37 by the urging force of the spring 65, and the lid 27 is moved by the engagement. 12. When the operation button 63 is pressed downward against the spring 65 from this state, the hook claw 64 is disengaged from the clamp claw 46 in conjunction with this and the locking of the lid 27 is released. The lid 27 is rotated upward by the biasing force of the spring 31 about the hinge mechanism 28 as a fulcrum, and is automatically opened.

In such a configuration, the expensive brake bush 48 made of heat-resistant rubber is a small one having a horizontal tongue shape, and therefore the material cost of the brake bush 48 made of expensive heat-resistant rubber is reduced. Cost can be reduced. The brake bush 48 is fixed via a fixing plate 51 and the fixing plate 5
1 is provided inside the clamp receiver 37 and is not exposed to the outside, so that the appearance can be kept good.

Also, since the brake bush 48 is mounted on the small clamp receiver 37 separate from the frame 12, it is easier to install the brake bush 48 than when the brake bush 48 is mounted on the large frame 12. The clamp mechanism 37
9 and the member for locking the hook claw 64 and the brake bush 4
8 also has an advantage that the whole configuration is simplified.

FIG. 7 shows a second embodiment of the present invention. In the second embodiment, a portion extending from the upper portion of the side portion 14 to the horizontal portion 15 of the frame 12 is provided.
An insertion groove 67 having an open bottom surface is formed, and a pot support 44 is integrally formed at a portion of the upper surface of the horizontal portion 15 corresponding to the insertion groove 67.

In the upper part of the side part 14, the insertion groove 67 is provided.
And a mounting hole 68 facing the inside of the pot housing 11 is formed. A small tongue-shaped small brake bush 48 made of heat-resistant rubber is inserted into the mounting hole 68. A fixing plate 51 as fixing means for fixing the brake bush 48 from an open portion on the lower surface of the insertion groove 67.
Is inserted, and the brake bush 48 is fixed to the frame 12 via the fixing plate 51.
Of the pot 13 projects forward of the side face portion 14 and elastically contacts the outer peripheral surface of the pot 13, so that the contact prevents the pot 13 from turning.

In the first embodiment, the brake bush 48 is provided at a portion corresponding to the pan support 44a. However, in the second embodiment, the position where the brake bush 48 is provided is A pan support (not shown) is uniformly provided at the opening edge of the upper end of the pan storage unit 11 at another position.

In such a configuration, similarly to the first embodiment, the expensive brake bush 48 made of heat-resistant rubber is a small one having a horizontal tongue shape.
The material cost of the brake bush 48 made of expensive heat-resistant rubber can be reduced to reduce the cost. The brake bush 48 is fixed via the fixing plate 51, and the fixing plate 51 is fixed inside the frame 12. And is not exposed to the outside, so that a good appearance can be maintained. Further, since the brake bush 48 can be provided at an arbitrary position of the frame body 12 without being restricted to the position of the pot support, there is an advantage that there is no restriction in design.

[0036]

As described above, according to the present invention, the brake bush is formed in a small horizontal tongue-like shape, and this brake bush is inserted into a mounting hole formed in a clamp receiver or a frame and inserted into the inside thereof. Since the fixing is performed by the fixing means provided in the above, the material cost of the brake bush can be suppressed and the cost can be reduced.

In particular, in the first aspect of the present invention, the brake bush is mounted on a clamp receiver separate from the frame, so that the brake bush can be easily assembled as compared with the case where the brake bush is mounted on a large frame. In addition, since the clamp receiver serves both as a member for retaining the hook claws of the clamp mechanism and a member for retaining the brake bush, there is an advantage that the entire configuration is simplified.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a structure of a rice cooker according to a first embodiment of the present invention.

FIG. 2 is a plan view of a frame of the rice cooker.

FIG. 3 is a front view of a part of the frame.

FIG. 4 is a plan view of a clamp receiver.

FIG. 5 is a sectional view of a clamp receiver.

FIG. 6 is a front view of a fixing plate.

FIG. 7 is a sectional view showing a partial structure of a rice cooker according to a second embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a partial structure of a conventional rice cooker.

FIG. 9 is a plan view of the frame of the rice cooker.

FIG. 10 is a sectional view showing the structure of a part of another conventional rice cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Pot storage part 12 ... Frame 13 ... Pot 36 ... Concave part 37 ... Clamp receiving 44a, 44b ... Pot support stand 45 ... Insertion groove 47 ... Mounting hole 48 ... Brake bush 51 ... Fixing plate (fixing means) 60 ... Recess Part 67: Insertion groove 68: Mounting hole

Claims (3)

[Claims] The present invention further comprises a frame which forms a cylindrical pot storage portion, and a clamp receiver is mounted on the frame body at an upper portion of the pan storage portion. A mounting hole facing the inside is formed, and through this mounting hole from the inside of the pan storage unit to the inside of the clamp receiver, a horizontal tongue-shaped brake that contacts the outer peripheral surface of the pan in the pan storage unit to prevent the pan from rotating A rice cooker in which a bush is inserted and the brake bush is fixed to the clamp receiver via fixing means provided inside the clamp receiver. 2. A frame having a cylindrical pot storage portion, wherein the frame has a mounting hole located at an upper portion of the pan storage portion and facing the inside of the pan storage portion. Through this mounting hole, a horizontal tongue-shaped brake bush is inserted from the inside of the pot housing to the inside of the frame body to contact the outer peripheral surface of the pot in the pot housing to prevent the pan from rotating. A rice cooker fixed to a frame via fixing means provided inside the body. 3. The fixing means according to claim 1, wherein said fixing means is a fixing plate having a concave notch for locking said brake bush.
Or the rice cooker according to 2.