JP3303539B2 - rice cooker - Google Patents

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 use in ordinary households in which the structure of a lid having an inner lid is improved.

[0002]

2. Description of the Related Art In recent rice cookers, improvement in usability has been demanded. Conventionally, this type of rice cooker has, for example, the following configuration, and will be described with reference to FIGS.

[0003] As shown in the figure, a lid 42 that covers the upper opening of a bottomed cylindrical pot 41 is provided with a hinge 44 that is openably and closably supported on the rear side of the rice cooker main body 43, An upper cover 45 constituting an outer periphery of the upper surface, a ring-shaped cover cover 46 located on an outer periphery of a lower surface of the cover 42, and a metal lower cover 47 constituting a lower surface of the cover 42. 47 covers the upper opening of the pot 41 via a silicone rubber pot packing 48. The lower lid 47 is fastened and joined to the lid cover 46 via a pot packing 48 with a lower lid fixing screw 49. A protrusion 51 having a screw hole 50 is provided at a fastening portion of the lower cover fixing screw 49 of the pot packing 48. In the center of the lower lid 47, a holder shaft 52 protruding toward the pot 41 is provided. The inner lid 53 placed on the upper open portion of the pan 41 has a hole 54 at the bottom and a holder packing 55 at the center thereof, and the holder packing 55 is attached to the holder shaft 52. It is inserted and fitted to hold the inner lid 53.

[0004]

However, in such a conventional rice cooker, rice is served or the pan 4
In order to take out 1, by opening the lid 42,
The inner lid 53 whose central portion is held only by the elastic material is loose about the holding portion, and the outer peripheral portion of the inner lid 53 contacts the lower lid 47. Since the lower lid 47 and the inner lid 53 are made of metal, a contact sound “karakara” is generated at the time of contact,
The discomfort was given to the user.

Therefore, the present invention has been made to solve the above-mentioned problem, and has as its first object to obtain a rice cooker which prevents unpleasant sounds when the lid is opened.

It is a second object of the present invention to provide a rice cooker which has a simple structure, a small number of parts, is resource-saving and has a high cost merit.

Another object of the present invention is to provide a rice cooker which has a simple structure and uses a small amount of material and has high cost merit.

A fourth object of the present invention is to provide a rice cooker in which the steam sealing between the pot packing and the lower lid is ensured, and which is highly safe.

[0009]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention relates to a bottomed tubular pot detachably mounted on a main body, and a top opening formed by a hinge on one side of the main body. A cover that can be freely opened and closed, wherein the cover is an upper cover that forms an upper surface shell, a ring-shaped cover that is positioned on the outer periphery of the lower surface of the cover, and a metal that forms the lower surface of the cover. And a lower lid, the lower lid covers an upper opening of the pan via a pan packing, and a holder shaft protruding toward the pan is provided at a central portion of the lower lid. The inner lid, which is placed and provided with a holder-packing at the center, is attached to the lower lid by fitting the holder-packing to the holder shaft, and the outer peripheral part of the inner lid is lowered via an elastic body. It is a rice cooker that comes into contact with the lid.

In order to achieve the second object, the present invention provides a rice cooker in which the outer peripheral portion of the inner lid comes into contact with a pot packing as an elastic body, in addition to the above-mentioned configuration.

According to a third aspect of the present invention, in addition to the structure for achieving the second object, a pot packing is provided with a projection rib protruding toward the pot side, and a projection of the pot packing is provided on a lower lid. Holes are provided corresponding to the positions of the ribs, and the protruding ribs penetrate the holes in the lower lid, project toward the pot, and come into contact with the outer peripheral portion of the inner lid.

According to a fourth aspect of the present invention, in addition to the configuration for achieving the third object, a pot packing is provided with a protruding rib and a screw hole for fixing a lower lid. The lower lid is provided with holes corresponding to the positions of the projecting ribs and screw holes of the pan packing, and the pan packing and the lower lid are attached to the lid cover with the lower lid fixing screw through the screw holes and holes. Rice cooker.

[0013]

According to the present invention, the inner lid held only at the central portion by the operation when the lid is opened by the above-mentioned structure is loose about the holding portion, and the outer peripheral portion approaches the lower lid. However, the contacting surface is an elastic body, which can prevent the metallic sound of "scratch" at the time of contact.

Further, since the outer peripheral portion of the inner lid is brought into contact with the pot packing as an elastic body, the configuration is simplified, and it is not necessary to add a new component and the number of components is further reduced.

Further, since a part of the pot packing is protruded from the lower cover in the direction of the inner cover to form a projection rib, and this is used as a contact portion as an elastic body, the amount of material used for the pot packing is reduced.

Further, the pot packing is provided with a protruding portion provided with a protruding rib and a screw hole for fixing the lower lid, and the lower lid has holes corresponding to the positions of the protruding rib and the screw hole of the pan packing. Provided, the pan packing and the lower lid are attached to the lid cover with the lower lid fixing screw, so that the sealing property between the lower lid and the pan packing is ensured, and the function of preventing steam from entering from the protruding ribs is provided. It is.

[0017]

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 3, reference numeral 11 denotes a main body having an open top, and a rice cooker (not shown) serving as a heating means for cooking rice is provided at the inner bottom of the main body 11. A bottomed cylindrical pot 12 detachably mounted on the rice cooker.
The lid 13 that covers the upper surface opening is provided to be openable and closable by a hinge portion 14 that is pivotally supported on one side of the upper surface opening. The lid 13 is provided with a steam hole 15 which is a passage for discharging the steam in the pot 12 to the outside of the main body 11, and an upper lid 16 constituting an upper surface outer shell, and a ring-shaped lid located on the outer periphery of the lower surface of the lid 13 It has a cover 17 and a metal lower lid 18 constituting the lower surface of the lid 13.

A pot packing 19 made of silicon rubber for sealing the flange of the pot 12 is mounted in the recess 20 on the lower surface of the cover 17, and one of the pot packings 19 is provided with the cover 17. The protrusion 21 is formed along the recess 20 of FIG. The other end of the pot packing 19 is in contact with the flange of the pot 12. Further, the pot packing 19 is provided with a screw hole 22 for fixing the lower lid and a projecting portion 24 provided with a projecting rib 23 projecting toward the pot 12.

A lid heater 25 for keeping the rice in the pot 12 warm is fixed to the lower lid 18 with aluminum foil or the like, and a holder shaft protruding toward the pot 12 at the center of the lower lid 18. 26
It has. The lower cover 18 is provided with holes corresponding to the positions of the screw holes 22 and the projecting ribs 23 of the pot packing 19, the recesses 20 of the pot packing 19 are pressed down at the end faces, and the lower cover 18 is attached to the lower cover 17. While being fastened and attached with the lid fixing screw 27, the projection rib 23 penetrates the lower lid 18,
It protrudes to the pot 12 side. The inner lid 28 placed on the upper opening portion of the pan 12 has a hole at the bottom, and when the lid 13 is closed at the center thereof, the inner lid 28 is deformed to press the inner lid 28 against the pan 12. Silicon rubber holder-packing 29
And the holder-packing 29 is attached to the holder-shaft 2.
6 to hold the inner lid 28.

Next, the operation of the rice cooker thus configured will be described. First, rice and water are put into the pot 12, and the inner lid 28 is set on the lower surface of the lid 13. At this time, the inner lid 28
The holder-packing 29 is inserted and fitted into the holder-shaft 26 of the lower lid 18 to hold the inner lid 28. Next, when the lid 13 is closed, the holder-packing 29 is deformed by the inner lid 28 abutting on the flange portion of the pan 12, and the inner lid 28 is
Is pressed. Then, when electricity is supplied to the rice cooker, the rice and water in the pot 12 begin to boil, and steam is generated in the steam hole 1.
From step 5, the rice is discharged out of the main body 11, and the rice cooking is completed. At this time, since the inside of the lid 13 is sealed by the pot packing 19, steam does not enter the inside of the lid 13.
When the lid 13 is opened, the inner lid 28 is loose due to the momentum inertial force and the restoring force of the holder-packing 29. At this time,
Since the outer peripheral portion of the inner lid 28 comes into contact with the projecting rib 23 of the pot packing 19 projecting from the lower lid 18 and the rattling is converged,
No unpleasant noise is generated due to contact between metals.

In this embodiment, the projection rib 2 of the pot packing 19 is used as an elastic body with which the outer peripheral portion of the inner lid 28 contacts.
Although the third embodiment has been described, an elastic body may be provided separately from the pot packing 19.

[0022]

As is apparent from the above embodiment, according to the rice cooker of the present invention, a bottomed tubular pot detachably mounted on the main body and a hinge portion on one side of the main body have an upper opening. A cover that can be freely opened and closed, wherein the cover is an upper cover that forms an upper surface shell, a ring-shaped cover that is positioned on the outer periphery of the lower surface of the cover, and a metal that forms the lower surface of the cover. And a lower lid, the lower lid covers an upper opening of the pan via a pan packing, and a holder shaft protruding toward the pan is provided at a central portion of the lower lid. The inner lid, which is placed and provided with a holder-packing at the center, is attached to the lower lid by fitting the holder-packing to the holder shaft, and the outer peripheral part of the inner lid is lowered via an elastic body. It is configured to contact the lid, and the center part is held only by the elastic material by the operation when the lid is opened. The inner lid just swings around the holding part, and the circumferential part approaches the lower lid, but the contacting surface is an elastic body, which can prevent the metallic sound of "karakara" at the time of contact .

Further, according to the rice cooker of the present invention, since the outer peripheral portion of the inner lid is brought into contact with the pot packing as an elastic body, the configuration is simplified and the number of parts is reduced and the cost is reduced. Things are obtained.

Further, according to the rice cooker of the present invention, the pot packing is provided with a protruding rib protruding toward the pot, the lower lid is provided with a hole corresponding to the position of the protruding rib of the pot packing, and the protruding rib is provided on the lower lid. Since it penetrates the hole and projects to the pot side to come into contact with the outer peripheral portion of the inner lid, the amount of material used for the pot packing is small, resource saving and inexpensive can be obtained.

Further, according to the rice cooker of the present invention, the pot packing is provided with a protruding portion provided with a protruding rib and a screw hole for fixing the lower lid, and the lower lid is provided with a protruding rib, a screw hole of the pot packing. Holes are provided in accordance with the positions of, and the pan packing and the lower lid are attached to the lid cover with the lower lid fixing screws through the screw holes and the holes, so that the sealing between the lower lid and the pan packing is performed. , And prevents steam intrusion from the contact portion, so that a safe rice cooker can be obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a part of a rice cooker according to an embodiment of the present invention.

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

FIG. 3 is an exploded perspective view of the rice cooker.

FIG. 4 is a partially enlarged perspective view of a conventional rice cooker.

FIG. 5 is a side sectional view of a part of a conventional rice cooker.

[Explanation of symbols]

 13 Lid 17 Lid Cover 18 Lower Lid 19 Pot Packing 23 Projecting Rib 24 Projecting Part 28 Inner Lid

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-59-77923 (JP, U) Japanese Utility Model Sho-59-95929 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 27/00 103

Claims (2)

(57) [Claims] 1. A bottomed cylindrical pot removably mounted on a main body, and a lid body for opening and closing an upper surface opening by a hinge part on one side of the main body, wherein the lid body has an upper surface shell. , A ring-shaped lid cover located on the outer periphery of the lower surface of the lid, and a metal lower lid forming the lower surface of the lid. Cover the top opening,
At the center of the lower lid, a holder-shaft protruding toward the pot is provided.The inner lid, which is placed on the upper opening of the pan and has a holder-packing at the center, is provided with the holder-packing. It is fitted to the holder shaft and attached to the lower lid, and the outer peripheral part of the inner lid is brought into contact with the pot packing as an elastic body.
The pot packing is provided with a protruding rib protruding to the pot side,
Holes corresponding to the positions of the projection ribs on the pan packing
The raised rib penetrates through the hole in the lower lid and projects toward the pan,
A rice cooker that comes into contact with the periphery . 2. The pot packing has a projection rib and a lower lid fixing part.
The screw hole is provided with a protrusion, and the lower lid is pot packing
Holes corresponding to the positions of the projecting ribs and screw holes.
Cover, cover the pan packing and the lower lid through the screw holes and holes.
The rice cooker according to claim 1, wherein the rice cooker is attached to a lower lid with a fixing screw .