JPH0259726B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to cooking utensils for general household use.

BACKGROUND ART Conventionally, in this type of cooking utensil, as shown in FIG. Pot 4
An inner frame 3 is provided, and an outer lid 5 that covers the upper opening of the pot 4 is pivotally supported at the upper end of one side of the upper frame 2. The lower opening of the outer frame 1 is covered with a lower frame 6 made of resin. This lower frame 6 is fitted to the outer frame 1 at its outer periphery, and furthermore, the lower frame 6 is reinforced to prevent a decrease in the fitting strength with the outer frame 1 due to heat shrinkage, or to prevent the fitting part from coming off due to falling. In order to fix the lower frame 6 and the bottom of the inner frame 3 with
Generally, it is firmly fixed.

Problems to be Solved by the Invention However, in this configuration, the bottom of the inner frame 3 and the lower frame 6
The variation in distance between inner frame 3, upper frame 2, outer frame 1,
This is the sum of the variations in the dimensions of the lower frame 6 in the height direction, and since there is also variation in the dimensions of the fixture 7 itself in the height direction, the difference is quite large. Therefore, when the bottom surface of the inner frame 3 and the lower frame 6 are fixed with the fixing device 7, when the variation in the height direction of each component shifts in the direction of reducing the distance between the two, the fixing device 7 Even if the two are fixed, the force will act in the opposite direction to separate them.
Therefore, if the lower frame 6 undergoes heat shrinkage, the lower frame 6
Then, the fitting portion of the outer frame 1 can be easily removed. On the other hand, when the variation in the height direction of each component shifts in the direction of increasing the distance between the two, the fixture 7
If the two are fixed together, the fitting part of the lower frame 6 and outer frame 1 will be compressed more than necessary, and if the product is dropped, the fitting part will be further compressed, so the bottom frame 6 will be compressed more than necessary.
There was a problem that the screws were wedged inward of the outer frame 1.

The present invention solves these conventional problems and provides a cooking utensil in which the mounting strength of the lower frame is kept almost constant regardless of variations in the dimensions of each component, and the strength is improved. .

Means for Solving the Problems In order to solve these conventional problems, the cooking utensil of the present invention includes an outer frame, an annular upper frame forming the upper end surface of the outer frame, and a A bottomed cylindrical inner frame whose upper end is fixed and which is housed in the outer frame, a pot which is detachably housed in the inner frame, an outer lid that covers the top opening of the pot, and the outer frame. A lower frame made of resin that covers the lower opening of the lower frame, and a fixing device that engages the lower frame and the inner frame, and a resin-made lower frame is provided between the outer frame fitting portion of the lower frame and the fixing device mounting portion. A flexible portion is formed that easily deforms in the vertical direction due to the elasticity of the material.

Function With this structure of the lower frame, even if there is a variation in the distance between the inner frame and the fixing device mounting surface of the lower frame, it can be absorbed by the elastic deformation of the lower frame. can be kept almost constant regardless of variations in dimensions.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In FIGS. 1 and 2, 11 is a cylindrical outer frame;
12 is a resin annular upper frame forming the upper end surface of the outer frame 11; 13 is a bottomed cylindrical inner frame built into the outer frame 11; 14 is a heater placed on the inner bottom of the inner frame 13; , 15 is a pot removably housed in the inner frame 13;
16 is an outer lid that covers the upper opening of the pot 15; 17 is a lower frame made of resin that covers the lower opening of the outer frame 11; the outer periphery thereof is fitted into the outer frame 11;
7c integrally. 18 has one end as the inner frame 13
This is a resin fixture whose other end is secured to the inner peripheral holding portion 17b of the lower frame 17. And this bottom frame 1
7 has a flexible portion 17a formed in an annular and thin manner near the inner periphery.

The length of the fixture 18 in the vertical direction is the outer frame 11,
The upper frame 12, inner frame 13, and lower frame 17 are the minimum dimensions that take into account the dimensional tolerances when assembled, and the dimensional tolerance of the vertical length of the fixture 18 is less than the above-mentioned minimum dimension. It is set to be small.

According to the above configuration, the fixing tool 18 always keeps the lower frame 17 in the assembled state, no matter how different the dimensions of the outer frame 11, the upper frame 12, the inner frame 13, and the lower frame 17 are. The direction is to attract the outer frame 11 to the frame 13 or to strengthen the connection between the outer frame 11 and the lower frame 17. Furthermore, the dimensional deviation that occurred at that time is the lower frame 1
This can be absorbed by deforming the flexible portion 17a of No.7.

Effects of the Invention As is clear from the above description, according to the present invention, when attaching a fixing device for fastening the bottom frame and the inner frame or the outer frame, the bottom frame can be vertically deformed near the fixing device holding portion. By providing a flexible part, the flexible part does not deform in the direction of heat contraction of the lower frame, preventing the fitted part from coming off, and also makes it easier and more reliable to assemble the lower frame and outer frame. It is possible.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a main part of a cooking utensil according to an embodiment of the present invention, FIG. 2 is a partially cut-out overall cross-sectional view of the same, and FIG. 3 is a partially cut-out overall cross-sectional view showing a conventional example. 11...Outer frame, 12...Upper frame, 13...Inner frame, 15...
Pot, 16...outer lid, 17...lower frame, 17a...flexible portion, 18...fixing tool.

Claims (1)

[Claims] 1. An outer frame, an annular upper frame forming the upper end surface of the outer frame, a bottomed cylindrical inner frame housed in the outer frame, a pot detachably housed in the inner frame, and the pot. The outer frame of the lower frame includes an outer lid that covers the upper opening, a resin lower frame that covers the lower opening of the outer frame, and a fixture that connects the lower frame and the inner frame. A cooking utensil in which a thin flexible part that deforms in the vertical direction is formed between a fitting part and a fixture mounting part.