JPS6012484Y2 - Rice cooker inner lid retention structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to the structure of the inner lid of gas rice cookers, etc., and in particular, in heat-retaining rice cookers that have electrical components built into the outer lid, the present invention aims to provide a reliable connection between the inner lid and the outer lid. The present invention proposes a structure that makes it possible to easily remove the inner lid, and also proposes a structure in which the connecting portion has sufficient durability and is easy to clean.

Hereinafter, the structure and effects of the present invention will be explained in detail according to the illustrated embodiments.

The embodiment shown in FIG. 1 is applied to a heat-retaining gas rice cooker, and the outer lid 1 is integrally covered with the rice cooker together with the inner lid, which will be described later. A hook 3 is attached to the other side opposite to this, and this hook 3 corresponds to a retaining base 4 disposed on the upper part of the upper frame 2 in a detachable manner.

A heat insulation layer 5 made of a heat insulating material is formed inside the outer lid 1, and an electric heating device 6 for keeping the upper part warm is provided on the inner surface of the lower surface of the outer lid.
is built-in.

Further, a cylinder 9 having a through hole in the center is attached and fixed to the center of the lower surface of the outer lid, and the through hole 11 bored in the bottom of the cylinder is formed of an elastic material such as rubber. A cap-shaped holding member 12 is fitted, and this fits and holds the head 15 of the knob shaft 14 of the lower inner lid 13.

For this purpose, the lower end of the holding member has a groove formed on the outer periphery of the annular base 16 to fit the through hole 11, while a convex strip 17 is wound around and protrudes from the inner periphery.

Further, a dish-shaped pressure member 18 is accommodated in the cavity formed by the cylinder body 9 and the lower surface of the outer lid 1, and a pressure spring 19 is interposed between the upper surface and the lower surface of the outer lid. , the peripheral edge of the pressure member forms a flange 20 and abuts on the upper tongue piece 21 of the base 16 .

The periphery of the inner lid 13 is placed on the upper step 23 of the rice cooker 22 to close it off.

According to the combination of the outer lid 1 and the inner lid 13 described above, when the head 15 of the knob shaft 14 is fitted into the holding member 12, the head is accommodated in the holding member above the protrusion 17, The convex ridge is located on a shaft portion that continues below the head 15 and has a smaller diameter,
The head is held.

When the head is inserted, the head 15 pushes the protrusions 17 apart and moves inward, and the force acting at this time causes the base 16 to come off from the bottom of the cylinder 9, but the upper tongue piece 21 Since the holding member is pressed by the collar portion 20 of the pressure member 18, the holding member is maintained in the fitted state.

Next, when the outer cover 1 is closed with the inner cover 13 connected, the height etc. of the knob shaft 14 have been set appropriately in advance, so when the hook 3 engages with the engagement base 4, it will move as shown in FIG. The pressure force of the pressure spring 19 acts on the inner lid from the pressure member 18 via the knob shaft 14, and its peripheral portion is pressed against the stepped portion 23 of the rice cooker with an appropriate force.

Therefore, together with the action of the weight 24 of the inner lid 13, rice boiling from the periphery of the inner lid during cooking is prevented.

In order to remove the inner lid 13 from the outer lid 1, the head 15 of the knob shaft 14 can be forcibly pulled out from the holding member 12, which allows cleaning of the inner lid 13 alone and cleaning of the connecting part, i.e.
The inside of the holding member 12 can also be cleaned easily.

Note that when removing the inner lid 13, the head 15 is
7 is deformed so as to be bent downward, and the acting force of this acts to deform the upper tongue piece 21 upwardly, but the upper tongue piece has the collar portion 20 of the pressure member 18 as described above. Since this is pressed against the bottom of the cylindrical body 9, the above deformation is suppressed and there is no fear that the holding member 12 will come off in this case as well.

Further, even when cleaning the lower surface of the outer lid 1 as described above, there is no complicated member such as a spring inside the holding member 12 that serves as the connecting part.
This part can be easily cleaned, and the entire lower surface of the outer lid 1 can be kept clean at all times.

In addition, since the inside of the outer lid 1 is entirely covered by the lower surface member, it is possible to protect the electric heating device etc. housed inside the outer lid 1.
(waterproof) is also sufficient.

As described in detail above, the inner lid holding structure of the rice cooker of the present invention has the head 15 of the knob shaft 14 of the inner lid 13 having a larger diameter than the shaft, and a cylinder hanging down from the center of the lower surface of the outer lid 1. A pressure member 18 is made of an elastic material such as rubber and fitted into a through hole 11 at the bottom of the body 9, and a base 16 of a holding member 12 having a shape that swells upward is fitted, and is accommodated in the cylinder body 9 so as to be able to rise and fall. A pressure spring 19 is interposed between the lower surface of the outer lid 1 and the upper tongue piece 21 of the base 16 by the collar 20 extending from the lower end of the periphery of the pressure member 18. Therefore, the inner cover 13 is reliably connected to the outer cover 1, and can be easily removed if necessary, and the connecting portion can be easily pre-cleaned.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the main parts of the embodiment of the present invention, and FIG. 2 shows the state when the outer cover is closed. In the figure. 1... Outer lid, 9... Cylindrical body, 12
...Holding member, 13...Inner lid, 14.
...Knob shaft, 15...Head, 16...
... Base, 18 ... Pressure member.

Claims (1)

[Scope of utility model registration request] The head 15 of the knob shaft 14 of the inner lid 13 is made larger in diameter than the shaft, and the through hole 11 at the bottom of the cylinder 9 hanging down at the center of the lower surface of the outer lid 1 is made of an elastic material such as rubber and is made of an elastic material such as rubber. A pressure spring 1 is inserted between the pressure member 18, which is fitted with the base 16 of the holding member 12 having an inflatable shape and is housed in the cylindrical body 9 so as to be able to rise and fall freely, and the lower surface of the outer lid 1.
An inner lid holding structure for a rice cooker, characterized in that an upper tongue piece 21 of the base part 16 can be pressed by a flange part 20 extending from the lower end of the peripheral edge of a pressure member 18 by inserting a collar part 9 therebetween.