JPS5856583Y2 - electric cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric cooker having a body with a seam folding process.

Electric cooking appliances have become increasingly smaller in recent years.

Weight reduction 5 Rationalization is progressing, and reductions in raw materials are being considered.

Among these, the issue was to increase the thickness of the body that constitutes the outer shell, but simply increasing the thickness would reduce the strength of the product and cause problems during use.

The present invention attempts to solve these problems through rational combinations of parts and shapes of parts.

Conventionally, the outer shell of an electric cooker has a cylindrical shape with a drawn bottom and a curled upper open end. However, products rolled and formed into a cylindrical shape are increasingly being used.

However, in this case, there is no work hardening due to drawing etc.
There is a limit to guaranteeing the strength of the product based only on the strength of the raw materials, and there have been many problems such as the parts that are joined by folding do not form a perfect circle but become sharply deformed in the direction of the outer circumference.

The present invention solves the above-mentioned conventional drawbacks, and a jar rice cooker will be described below as an embodiment of the present invention with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a drawn protective frame. A heater 2 is attached to the protective frame 1, and a pot 3 can be freely set on the upper surface of the heater 2, which can be brought into close contact with the heater 2.

The protective frame 1 is screwed to the resin molded upper frame 4 at the upper flange portion.

A hook portion 4a and a hinge portion 4b are integrally molded on the upper frame 4, and the outer lid 5 is pivoted at the hinge portion 4b, and the outer lid 5 is opened and closed using a hinge shaft 6 as a fulcrum. On the opposite side, a hook lever 7 is attached to the outer lid 5 by a hook bearing plate 8, and by moving the hook lever 7 in a seesaw shape around the hook shaft 9, the hook holder of the main body can attach the lid to the part 4a. Can be locked.

A body 10 is press-fitted and fixed to the lower part of the annular outer periphery of the upper frame 4, and a lower frame 11 is fixed to the body 10 with a seam.

The bottom of the main body is fixed together with the legs 12 by a back plate 13, and the power is supplied by a cord reel 14.

The upper frame hinge part 4b has a U-shaped cross section that is open in the outer circumferential direction, and a hinge cover 15 passes through the upper frame hinge part 4b and is fixed to the body 10 with screws.

A heater lead wire 16 from the outer lid 5i and a lead wire 17 from the main body are connected inside the hinge portion 4b.

A soup receiver 18 is attached to the upper frame hinge portion 4b, and the inner peripheral portions of the upper hinge portion 4b and the soup receiver portion 18 are in contact with the outer peripheral portion of the body.

The soup receiver 18 has a curved surface 18a having a smaller curvature than the outer peripheral shape of the body 10.

By the way, the body 10 is made by bending both ends of a single plate.
This is folded over and joined together using a seam fold to create a cylindrical shape.

The body 10, which is formed by rolling thin sheets, has the shape shown in Fig. 4 at the part where it is folded and joined together. This is a certain part of

Therefore, when the body 10 is assembled as a product, the quality and strength of the product can be satisfied by locating it at the hinge part where the load is most applied when the lid 5 is opened and closed.

However, it is difficult to process the body-seam folded portion into a perfect circular shape, and the load is concentrated in the circumferential direction at position A, causing deformation in the outer circumferential direction as shown in FIG.

In particular, this deformation increases when the outer lid 5 is opened and closed, but since the soup receiver 18 has a curved surface 18a with a smaller curvature than the outer periphery of the body 10, both ends of the curved surface 18a and the outer periphery of the body 10 There are no gaps on the surface, just the outer periphery, and the appearance is not unsightly.

Further, the body 10 is the longest in the vertical direction, and the hinge portion is where other parts are attached and the body itself is covered.

As is clear from the above structure, according to the present invention, the shape and position of the body, as well as the shape of the parts located in that part, maintain the quality and strength of the product, improve the appearance quality, and achieve rationalization. be.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a jar rice cooker showing an embodiment of the present invention, Fig. 2 is a sectional view of the hinge part of the same jar rice cooker, Fig. 3 is a front view of the hinge part, and Fig. 4 is the same. FIG. 5 is a horizontal sectional view of the body of the jar rice cooker, and FIG. 5 is a horizontal sectional view of the body in a deformed state. 4... Upper frame, 4b... Hinge part, 10
...Body, 18...Tsuyu receiver.

Claims (1)

[Scope of utility model registration request] A body made by winding a single metal plate into a cylindrical shape and joining together the folded parts formed at both ends, and a hinge part that is attached to the upper end of this body and integrally forms a hinge part that pivotally supports the lid body; The water holder is detachably attached to the hinge part and includes a part that contacts the outside of the body joint part, such as a water holder, and the part has a surface facing the body that is curved outward with a smaller curvature than the outer periphery of the body. Characteristic electric cooker.