JPH0158972B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a cooking utensil used in general households, particularly to a connection structure between a body and a lower frame.

BACKGROUND TECHNOLOGY Conventionally, this type of cooking utensil was developed, for example, by
It had a configuration as shown in Publication No. 45035. The details will be explained with reference to FIG.

That is, when connecting the lower frame 2 made of resin to the lower opening of the body 1, the lower frame 2 has a leg 2b integrally protruding from the lower surface and having a lateral groove 2a, and a top wall of the lateral groove 2a of this leg 2b has upper and lower grooves. It has a through hole 2c that is formed to penetrate through the hole 2c, and a fixture 3 that is formed in a substantially L shape and has one end as a connecting side and the other end as an engaging side. was passed through the through hole 2c and engaged with the lower opening of the body 1, and the connecting side was fitted into the lateral groove 2a and fixed with screws 4.

Problems to be Solved by the Invention However, in such a connected structure, both the body 1 and the lower frame 2 are exposed to high heat generated during cooking. Since the body 1 is made of metal, its dimensions hardly change over time, but the lower frame 2 is made of resin, and its dimensions change over time. Since this dimensional change of the lower frame 2 occurs in the direction of contraction, its outer diameter becomes smaller. In other words, referring to FIG. 3, the body 1 remains at the same position as shown in the figure, but the lower frame 2 appears to have moved to the right. Therefore, since the fixture 3 fixed to the lower frame 2 also moves to the right, the amount of engagement with the body 1 becomes smaller, and the fixing force thereof also becomes smaller. As a result, as cooking is repeated, the body 1 and the lower frame 2 become loose. Also, when body 1 is pushed from the outside, body 1 and lower frame 2
There was a problem in that it caused unevenness due to the distance between the two. In the worst case, there was a risk that the connection between the body 1 and the lower frame 2 would come apart.

On the other hand, at the connection part between the fixture 3 and the body 1,
If the length of the tip is made longer in order to increase the engagement area of the tip of the fixture 3, there is a problem that this part of the body 1 will be deformed due to variations in the shape of the parts, spoiling the appearance of the cooking utensil. However, there was a problem in that the length of the engagement portion could not be made very long.

The present invention solves these conventional problems and securely connects the body and the lower frame.

Means for Solving the Problem In order to solve this problem, the present invention provides the following features:
Bend one end of the fixture into a U-shape, provide a tapered part on the holding part of the bottom frame, fit the U-shaped part of the fixture into the holding part of the bottom frame, and then tighten with the fastening parts. is elastically deformed in accordance with the taper of the holding part of the lower frame, and the movement of this deformation fixes the curled part at the lower end of the body.

Effect With this configuration, even if the body and bottom frame are subjected to heat during cooking and the bottom frame contracts and deforms, the part of the body that is fixed to the body of the fixture will remain in its original fixed state as the elastic deformation of the fixture returns. If you bend the tip of the body fixing part of the fixture so that it fits into the curl, the body will be drawn toward the lower frame.

As a result, the attachment portion between the lower frame and the body will not become loose or sticky due to repeated cooking.

Examples Examples of the present invention will be described below with reference to FIGS. 1 and 2.
This will be explained with reference to the figures. In Fig. 2, reference numeral 11 constitutes the outer frame of the main body, and a cylindrical body made by bending a thin metal plate and having both end surfaces curled;
1 is an annular upper frame constituting the upper end of the outer frame of the main body;
3 is a low cylindrical inner frame formed by drawing a thin metal plate whose upper end is fixed to the upper frame 12 and is housed in the body 11; 14 is a cast-in heater placed on the upper surface of the inner bottom of the inner frame 13; 15; 16 is a heat-insulating outer lid that covers the upper opening of the pot 15, and 17 is the lower end of the outer frame of the main body, with legs attached to the lower outer periphery. , a lower frame made of resin with an opening in the center, 18 is a fixed part 18 with the lower frame 17 at one end.
a, a substantially L-shaped fixture with a connecting part 18b to the body 11 at the other end, the fixing part 18a is bent in a U-shape, and a tapered surface is provided on one side of the lower part of the lower frame. It is inserted into the attached holding part 17a,
It is fixed with fastening parts 19 such as screws. The tip of the connecting portion 18b is bent at an acute angle, and the connecting portion 18b is bent at an acute angle.
The fixed portion 18 is in contact with the curled portion at the lower end of the
By tightening a, the fitting 18 is elastically deformed in a manner similar to the tapered surface, and the connecting portion 18b comes into contact.

In the above configuration, when the casting heater 14 generates heat for cooking, part of the heat also reaches the body 11 and the lower frame 17. Here, the lower frame 17 is made of resin and shrinks over time. However, when the fixture 18 is fixed to the lower frame 17, it is fixed in an elastically deformed state, and even if the lower frame 17 shrinks due to heat, the connecting portion 18b of the fixture 18 will remain intact due to the original elastic deformation. By returning, it remains in contact with the body 11. Therefore, no looseness occurs at the connecting portion between the body 11 and the lower frame 17. Furthermore, by using a plurality of fixtures, the occurrence of unevenness between the body 11 and the lower frame 17 can be eliminated.

Effects of the Invention As described above, according to the present invention, one end of the fixture is bent into a U-shape, a tapered part is provided in the holding part of the lower frame,
By inserting and fixing the U-shaped part of the fixture here, the connecting part with the body at the other end of the fixture is brought into contact in an elastically deformed state, and the lower frame is contracted and deformed. However, since the elastic deformation of the fixture returns to its original state at the connecting portion, there is no change in the contact state at all. Therefore, even after repeated use, the joint between the body and the lower frame will not become loose or loose.

[Brief explanation of drawings]

Fig. 1 is an enlarged sectional view of the main part of a cooking utensil according to an embodiment of the present invention, Fig. 2 is a partially cutaway side view of the same cooking utensil, and Fig. 3 is an enlarged sectional view of the main part showing a conventional cooking utensil. It is. 11... Body, 12... Upper frame, 13... Inner frame, 14... Heater, 15... Pan, 16... Outer lid, 17... Lower frame, 17a... Holding part, 18...
Mounting tool, 18a... fixed part, 18b... connecting part,
19... Fastening parts.

Claims (1)

[Claims] 1. A cylindrical body formed by bending a thin metal plate to form an outer frame of the main body, an annular upper frame forming the upper end surface of the outer frame, and a bottomed cylindrical inner frame housed in the body. , a heater placed on the top surface of the bottom of the inner frame, a pot removably housed in the inner frame, an outer lid covering the top opening of the pot, and a resin covering the bottom opening of the outer frame. A lower frame made of aluminum, and a substantially L-shaped fixture that attaches the lower frame to the body, one end of which is bent into a U-shape and fitted into the tapered holding part of the lower frame. and cooking utensils that are stuck with fasteners.