JPH10286173A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the secular change of the engaging force of a heating plate by holding the outer periphery of the heating plate freely attachably and detachably disposed to the inner surface of a lid body by a heating plate support and forming the heating plate support from an engaging piece for mounting the heating plate to the lid body and an elastic body for energizing the engaging piece to an engaging side. SOLUTION: The lid body 18 is provided with the heating plate 25 with a prescribed clearance from a lid coil 24 for induction heating. The heating plate support 26 made of resin is provided on the outer periphery of the heating plate 25, a hook piece 28 is radially extended in the two directions of the positions almost equally divided into three of the outer periphery and an engaging part is provided in a remaining direction through the engaging port of the lid body 18. Also, the lid body 18 positioned at the tip of the hook piece 28 is provided with an engaging pawl 30 and the heating plate 25 integrated with the heating plate support 26 is freely attachably and detachably attached to the lid body 18 by the hook piece 28 of the heating plate support 26 and the engaging pawl 30 along with the engaging part passed through the engaging port. Further, to the hook piece 28, a support spring 31 for energizing the hook piece 28 to the side of the lid body 18 is interposed between the heating plate 25 and the heating plate support 26.

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 and keeping warm.

[0002]

2. Description of the Related Art A conventional rice cooker has a configuration as shown in FIG. In FIG. 8, a main body 3 provided with a hinge portion 1 at a rear portion and a locking portion 2 at a front portion, a pan 4 removably stored in the main body 3, and A lid 5 for opening and closing the pan 4, a lid packing 6 for sealing the upper end of the pan 4, and a heating plate 7 disposed at an upper opening of the pan 4; The packing 6 is provided with radial hook pieces 8 on two sides roughly divided into three equal parts, which are detachably attached to the lid 5, and the other one of which is connected to the body 3 through the opening 9 of the lid 5. This is a rice cooker in which a hook portion 10 that engages with the locking portion 2 when closed is integrally provided.

[0003]

However, in the rice cooker having the above-described structure, the pot packing 6 can be removed for cleaning, but the heating plate 7 for closing most of the opening of the pot 4 cannot be cleaned. . In addition, when the heating plate 7 is detachable and can be cleaned, it is desired to be able to prevent forgetting to attach the heating plate 7.

[0004] An object of the present invention is to provide a rice cooker in which the reliability of attaching and detaching a heating plate is improved.

[0005]

Means for Solving the Problems In order to solve the above problems, a rice cooker according to the present invention comprises a main body for storing a pan, a lid for covering an upper opening of the pan, and an inner surface of the lid. A heating plate provided thereon, and a heating plate support for holding an outer periphery of the heating plate, wherein the heating plate support includes an engagement piece for detachably disposing the heating plate with the lid body; And an elastic body for urging the joint piece toward the engagement side.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 comprises a main body for storing a pan, a lid for covering an upper opening of the pan, and a heating plate removably disposed on an inner surface of the lid. A heating plate support for holding an outer periphery of the heating plate, wherein the heating plate support includes an engagement piece for mounting the heating plate on the lid.
By having an elastic body for urging the engagement piece toward the engagement side, the engagement force of the heating plate is less likely to change even when the heating plate is repeatedly attached to and detached from the lid in long-term use. This has the effect that the attachment / detachment operation can be performed reliably.

The invention according to a second aspect of the present invention includes a main body for storing a pan, a lid for covering an upper opening of the pan, and a heating plate detachably disposed on an inner surface of the lid. The lid is
A hook portion for engaging a hook lever provided on the main body, wherein the hook portion is configured to be prevented from engaging with the hook lever when the heating plate is not mounted, Except when the heating plate is mounted, the hook portion has an action of preventing engagement of the hook portion with the hook lever.

According to the third aspect of the present invention, the hook portion can be engaged with the hook lever by placing the lid on the main body while raising the hook lever. The lid can be closed to the main body by tilting the hook lever to prevent misuse, and the lid can be closed to the main body by tilting the hook lever consciously when closing the lid. In addition, the space for opening the lid is not required when cleaning or drying the heating plate.

According to a fourth aspect of the present invention, there is provided a heating plate support for holding an outer periphery of the heating plate, wherein the heating plate support hooks a hook portion of the lid when the heating plate is mounted on the lid. An engagement piece for enabling engagement with the lever, wherein the engagement piece has an inclined portion for guiding engagement of the hook portion with the hook lever, whereby the heating plate When not attached, there is no inclined portion, so that the lid can be prevented from being closed with one touch.

[0010]

【Example】

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

1 and 2 are longitudinal sectional views of a main part of a rice cooker, FIG. 3 is a perspective view of the main part, and FIG.
The heating plate support for supporting the heating plate 5 surely attaches and detaches the heating plate 25 to and from the lid 18. A hook piece 28 provided on the outer periphery of the heating plate support 26 in FIG. A support spring 31 is an elastic body that urges the body 18 to engage with the body 18.

In FIG. 1 to FIG. 3, a main body 14 has an upper surface opening similar to a conventional rice cooker.
Are detachably arranged, and a protective frame 16 for storing the pan 15 is provided.
An induction coil 1 for induction heating is provided around the outer periphery of the protection frame 16.
7 is provided. A lid 18 is provided above the main body 14 so as to open and close the upper openings of the main body 14 and the pan 15. The lid 18 is supported by a hinge shaft 20 having a hinge 19 at the rear of the main body 14 so as to be openable and closable, and a hook lever 21 provided at the front of the main body 14 is provided on a substantially opposite side of the hinge 19. Is provided with an engaging portion 22 that engages with the second member.
The lid 18 is provided with a hinge spring 23 provided inside a hinge 19.
As a result, the lid 18 is rotated by rotating the hook lever 21.
Of the main body 14 and the pan 15
To release.

The cover 18 has a cover coil 2 for induction heating.
And a heating plate 25 made of stainless steel for closing the upper opening of the pot 15 with a predetermined gap from the lid coil 24. A heating plate support 26 made of resin is provided on the outer periphery of the heating plate 25, and a pan packing 27 for sealing the opening of the upper surface of the pan 15 is sandwiched therebetween and integrated with rivets or screws. Is roughly divided into three equal parts, and the hook pieces 28 radially extended in the two directions and the engaging portions 22 are provided in the remaining one direction with the engaging openings 29 of the lid 18.
Are provided to pass through.

An engaging claw 30 is provided on the lid 18 located at the tip of the hook piece 28, and engages with the hook piece 28 of the heating plate support 26 together with the engaging portion 22 penetrating the engaging opening 29. The heating plate 25 integrated with the heating plate support 26 with the claw 30 is detachably attached to the lid 18. Also, the hook piece 28 is attached to the lid 18.
A support spring 31 biased to the side is provided between the heating plate 25 and the heating plate support 26.

The operation of the rice cooker constructed as described above will be described below. That is, while the pot 15 is directly heated by the induction coil 17 and heated by the heating plate 25 appropriately heated by the lid coil 24, rice is cooked and kept warm.
At the end of the rice cooking and heat retention, the heating plate 25 is hooked by a hook piece 28 provided on the heating plate support 26,
Can always be reliably attached to and detached from the lid 18 by the support spring 31 provided at the bottom.

(Embodiment 2) FIGS. 4 and 5 are longitudinal sectional views of a main part of the rice cooker. In FIG. The hook portion 41 has an abutment piece 42 at a rear portion and is supported on a lid 38 by a shaft 43 provided at the approximate center thereof, except when the hook lever 21 is engaged. The shaft 43 is provided with an urging spring 44 for urging the tip of the hook 41 upward. The mounting of the heating plate 45 to the lid 38, that is, the contact piece 4 of the hook 41 is provided.
2 when the heating plate 45 is not in contact with the heating plate 45.
It comprises a hook portion 41 moving means for rotating the upper portion 1a upward to prevent engagement with the hook lever 21.

4 and 5, the main body 14 and the pan 1
5. Protective frame 16, induction coil 17, hook lever 21, and lid coil 24 are the same as those in the first embodiment. A lid 38 is provided above the main body 14 so as to open and close the upper opening of the main body 14 and the pan 15. The lid 38 is attached to the main body 14.
A hinge shaft 40 provided with a rear hinge portion 39 is pivotally supported so as to be openable and closable, and a hook portion 41 engaged with a hook lever 21 provided on a front portion of the main body 14 is provided on a substantially opposite side of the hinge portion 39. It has. The hook portion 41 has an abutment piece 42 at a rear portion thereof, and a shaft 43 provided at the approximate center thereof.
The shaft 43 is provided with an urging spring 44 for urging the tip of the hook portion 41 to rotate upward.

The lid 38 is provided with a heating plate 45 made of stainless steel for closing the upper opening of the pot 15 with a predetermined gap from the lid coil 24. This heating plate 45
The outer periphery of the pan 15 is provided with a resin heating plate support 46. The pan packing 47 for sealing the upper opening of the pan 15 is sandwiched and integrated with rivets or screws. Hook pieces (not shown) similar to those of the first embodiment are provided extending radially in three directions.

Also, the lid 38 is provided at the tip of the hook piece (not shown) with the same engaging claw (not shown) as that of the first embodiment on the inner side wall, and supports the heating plate. 4
6 is detachable. Further, the heating plate support 4 of the lid 38 is provided.
6 is provided with an accommodating portion 53 for the contact piece 42 in the set portion 52,
When the heating plate support 46 is attached to the set portion 52, the heating plate support 46 comes into contact with the heating plate support 46 and is stored against the urging spring 44.

The operation of the rice cooker constructed as described above will be described below. That is, when the heating plate 45 is mounted on the lid 38, the abutting piece 42 is pressed by the heating plate support 46 so that the hook portion 41 can be engaged with the hook lever 21. Numeral 41 is for rotating the tip 41a upward to prevent engagement with the hook lever 21. As a result, the lid 38 cannot be closed.

(Embodiment 3) FIGS. 6 and 7 are longitudinal sectional views of a main part of the rice cooker. In FIG. 7, when the heating plate 65 which is detachable from the lid 58 is not mounted, the lid 58 is closed. When the hook lever 21 is intentionally depressed during the closing operation of the lid 58, the lid 58 can be closed with respect to the main body 14, and the inclination for guiding the engagement of the hook lever 21 is made possible. The portion 62 is provided integrally with the heating plate 65.

In FIG. 6 and FIG.
5. Protective frame 16, induction coil 17, hook lever 21, and lid coil 24 are the same as those in the first embodiment. A lid 58 is provided above the main body 14 so as to freely open and close the upper opening of the main body 14 and the pan 15. The lid 58 is supported by a hinge shaft 60 provided with a hinge portion 59 at the rear of the main body 14 so as to be freely opened and closed, and a hook lever 21 provided at a front portion of the main body 14 is provided substantially opposite to the hinge portion 59. Is provided with a hook portion 61 that engages with the hook.

The lid 58 is provided with a stainless steel heating plate 65 for closing the opening on the upper surface of the pan 15 with a predetermined gap from the lid coil 24. This heating plate 65
A heating plate support 66 made of resin is provided on the outer periphery of the pan 15 and a pan packing 67 for sealing the opening of the upper surface of the pan 15 is sandwiched therebetween and integrated with rivets or screws. In one direction, the inclined portion 62 penetrates through the engagement opening 59 below the hook portion 61 of the lid 58,
Hook pieces (not shown) similar to those of the first embodiment are provided extending radially in the remaining two directions.

An engaging claw (not shown) similar to that of the first embodiment is provided on a lid 58 located at the tip of the hook piece (not shown). Part 6
A heating plate 65 integrated with a heating plate support 66 together with 2 is detachably mounted on the lid 58.

The operation of the rice cooker constructed as described above will be described below. That is, when the heating plate 65 is mounted on the lid 58, the hook portion 61 of the lid 58 is guided by the hook lever 21 by the inclined portion 62 by the pressing operation of the lid 58 and is engaged with the one-touch operation. Further, when the heating plate 65 is not mounted, the hook portion 61 of the lid body 58 does not have the inclined portion 62, so that the hook portion 61 comes into contact with the hook lever 21 and cannot be engaged. However, when the lid 58 is pressed while passing through the hook lever 21 when closing the lid 58 with the intention of engaging the hook portion 61 with the hook lever 21, the engagement with the hook lever 21 becomes possible. .

[0026]

As described above, according to the first aspect of the present invention, the main body for storing the pan, the lid for covering the upper opening of the pan, and the inner surface of the lid are detachably provided. Heated plate, comprising a heating plate support for holding the outer periphery of the heating plate,
The heating plate support has an engagement piece for attaching the heating plate to the lid, and an elastic body that urges the engagement piece toward the engagement side. Even when the heating plate is repeatedly attached to and detached from the lid, the engagement force of the heating plate is hardly changed, and the operation of reliably attaching and detaching the heating plate can be performed.

According to the second aspect of the present invention, the main body for storing the pan, the lid for covering the upper opening of the pan, and the heating plate detachably disposed on the inner surface of the lid are provided. With
The lid has a hook portion for engaging a hook lever provided on the main body, and the hook portion is prevented from engaging with the hook lever when the heating plate is not mounted. With this configuration, the hook portion has an action of preventing engagement with the hook lever except when the heating plate is attached.

According to the third aspect of the present invention, the hook can be engaged with the hook lever by placing the lid on the main body while raising the hook lever. If the hook lever is deliberately depressed when closing, the lid can be closed to the main body,
In addition to preventing misuse, the lid can be closed with respect to the main body if the hook lever is deliberately depressed when the lid is closed, eliminating the need to open the lid when cleaning or drying the heating plate. Is what you do.

Further, according to the fourth aspect of the present invention,
A heating plate support for holding an outer periphery of the heating plate, wherein the heating plate support is provided with an engagement piece for enabling a hook portion of the lid to engage with a hook lever when the heating plate is mounted on the lid; Having the inclined portion for guiding the engagement of the hook portion with the hook lever,
When the heating plate is not mounted, since there is no inclined portion, the lid can be prevented from being closed with one touch.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a main part of the rice cooker.

FIG. 3 is a perspective view of a main part of the rice cooker.

FIG. 4 is a cutaway sectional view of a rice cooker according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a main part of the rice cooker.

FIG. 6 is a cutaway sectional view of a rice cooker according to a third embodiment of the present invention.

FIG. 7 is a sectional view of a main part of the rice cooker.

FIG. 8 is a sectional view of a conventional rice cooker.

[Explanation of symbols]

 14 Body 15 Pot 18 Lid 21 Hook lever 22 Engagement part 25 Heating plate 26 Heating plate support 27 Pot packing 28 Hook piece 30 Engagement claw 31 Support spring 38 Lid 41 Hook part 42 Contact part 43 Shaft 44 Urging spring 45 heating plate 46 heating plate support 47 pot packing 58 lid body 61 hook part 62 inclined part 65 heating plate 66 heating plate support 67 pot packing

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Miyazaki 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A body for accommodating a pan, a lid for covering an upper opening of the pan, a heating plate removably provided on an inner surface of the lid, and a heating device for holding an outer periphery of the heating plate. Rice cooker comprising: a plate support, the heating plate support having an engagement piece for mounting the heating plate to the lid, and an elastic body for urging the engagement piece toward the engagement side. vessel. 2. A body for accommodating a pot, a lid for covering an upper opening of the pan, and a heating plate removably disposed on an inner surface of the lid, wherein the lid is provided on the main body. A rice cooker having a hook portion for engaging with a hook lever disposed in the heating plate, wherein the hook portion is prevented from engaging with the hook lever when the heating plate is not mounted. 3. The rice cooker according to claim 2, wherein the hook portion can be engaged with the hook lever by placing the lid on the main body while raising the hook lever. 4. A heating plate support for holding an outer periphery of a heating plate, wherein the heating plate support is capable of engaging a hook portion of the lid with a hook lever when the heating plate is mounted on the lid. The rice cooker according to claim 2, further comprising an engagement piece for guiding the engagement of the hook portion with the hook lever.