JP3521741B2 - Heating element mounting device for cooking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sensitive element mounting device for a cooking device, for example.

[0002]

2. Description of the Related Art FIG. 5 is an enlarged perspective view of a main part of a conventional heat-sensitive element mounting device for a heating cooker. In the figure, reference numeral 21 denotes a mounting plate which constitutes the bottom of a tubular protective frame of a heating cooker such as a rice cooker. Reference numeral 22 denotes a concave portion, which has an oval planar shape and a semicircular cross-sectional shape provided on the mounting plate 21. Reference numeral 23 designates two claws A formed by cutting and raising the mounting plate 21 from two positions at approximately one-third positions around the straight one side of the concave portion 22. The temperature fuse 25 as a heat sensitive element described later is wound around the claw A. Although it is fixed in the state, it is erected as shown by the broken line before the thermal fuse 25 is attached.

Reference numeral 24 is a claw B, which is formed by cutting and raising the mounting plate 21 so as to rise from the center of the other straight part of the recess 22 and is provided so as to face the claw A23. The claw B24 is arranged at a position substantially in the middle of the claw A23. Reference numeral 25 denotes a thermal fuse as a heat-sensitive element, which is formed in a rod shape having a circular cross section, and lead wire portions 26 at both ends thereof are bent at a substantially right angle so as to be mounted in the semicircular recess 22.

The procedure for attaching the temperature fuse to the heat-sensitive element attaching device of the conventional heating cooker configured as described above is as follows. First, the thermal fuse 25 is placed in the recess 22 through the space between the claw A23 and the claw B24 which are provided upright. Next, the temperature fuse 2 with one nail A23 each
Bend so that it wraps around the outer circumference of 5, then claw B24
Is bent from the opposite side of the claw A23 so as to be wound around the outer periphery of the thermal fuse 25.
The mounting is completed by fixing the thermal fuse placed on the so as to embrace it.

[0005]

Since the conventional heat-sensitive element mounting device for a heating cooker is constructed as described above, two claws A23 and one claw B24 are fixed when the temperature fuse 25 is fixed.
It is necessary to fold a total of three books, and in order to make the claws A23 and B24 face each other also in the folding direction,
Since there are many man-hours of work and the claw A23 and the claw B24 are independent of each other, there are problems that the holding force is weak and the thermal fuse is easily detached.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a heat-sensitive element mounting device for a heating cooker which has good assembly workability and can securely hold the heat-sensitive element. And

[0007]

A heat-sensitive element mounting device for a heating cooker according to the present invention is provided with a peripheral surface of a hole which is formed on the mounting surface of the heat-generating element in a length substantially equal to that of the heat-sensitive element and which is open at both ends.
A recess having a stopper vertically provided in the surrounding, an arc-shaped support body formed by cutting and raising the mounting surface at one side edge of the recess, and the mounting surface at the other side edge of the recess. A frame-shaped holding body formed by cutting and raising, and disposing the heat-sensitive element in the recess and bending the holding body to move the heat-sensitive element to the stopper, the support, and the holding body. It is held in a sandwiched state by.

Further , the holding member holds a pair of holding members on the mounting surface.
Shape the width of the part so that the base is wide and narrows toward the tip.
It was made. Furthermore, the support is within the frame shape of the holder.
It is formed so as to be opposed to the side.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 is a cross-sectional view of a main part of a rice cooker that is a heating cooker according to a first embodiment of the present invention, FIG. 2 is a plan view of a heat-sensitive element mounting device, and FIG. 3 is A of FIG.
A sectional front view taken along the line A and FIG. 4 are exploded perspective views of the same. In the figure, reference numeral 1 denotes a heating cooker, for example, a bottomed tubular main body of a rice cooker. Reference numeral 2 is a bottomed cylindrical protective frame suspended from the upper portion of the main body 1, and 3 is a heating plate type rice cooker provided at the bottom of the protective frame 2. Reference numeral 4 denotes a pot which is detachably housed in the protective frame 2 and whose bottom is placed on the heater 3. Reference numeral 5 denotes a temperature sensor which contacts the bottom of the pot 4 and detects the temperature of the pot 4.

Reference numeral 6 denotes a heat-sensitive element mounting device arranged on the outer bottom surface of the protective frame 2. 7 is a concave part, and the plane shape is a square,
The cross-sectional shape is a groove with an almost arc shape. Reference numeral 8 denotes a pair of holes provided at both ends of the recess, each of which has a rectangular opening. Reference numeral 9 denotes a stopper that extends vertically around the hole 8 in a belt shape, and is formed in a state where the U-shaped open sides face each other and face each other. 10 is the longitudinal direction of the recess 7
Formed by cutting and raising the protective frame 2 at one side edge of
Arcuate support, 11 is a protective frame on the other side edge of the recess 7.
A frame-shaped holder formed by cutting and raising 2.
So that the support 10 is located inside the frame-shaped holder 11
Has been

Reference numeral 11a denotes a pair of holding portions which constitute a rising portion of the holding body 11, and are provided at predetermined intervals such that the width on the base side standing upright from the protective frame 2 is wide and narrow toward the tip. The distal end of the holding portion 11a is formed into an integral rectangular frame shape with the connecting portion 11b crossed over. 12
Is a heat sensitive element, and uses a rod-shaped thermal fuse having a circular cross section. The heat sensitive element 12 has a length of a predetermined dimension that can be accommodated in the dimension between the pair of stoppers 9 and the lead wire portion 12a.
Is bent at a substantially right angle.

The procedure for mounting the heat-sensitive element in the heat-sensitive element mounting device configured as described above will be described. First, the thermosensitive element
In the child 12, the lead wire portions 12a at both ends are previously folded in the same direction.
Bent and pass between the support body 10 and the holding body 11
Place within 7. The heat sensitive element 12 has lead wire portions 1 at both ends.
2a hit the edges of a pair of holes 8 formed at both ends of the recess 7.
Therefore, movement in the longitudinal direction is prevented. Then this state
Fold the holder 11 toward the heat sensitive element 12 side along the outer peripheral surface thereof.
Bending (shown by the broken line in FIG. 4) the heat-sensitive element 12 as a support
Hold it in such a state that it is pressed against 10. In this state,
The connecting portion 11b of the holding body 11 is more than the outer peripheral surface of the thermosensitive element 12.
Contacting a relatively wide area, the heat-sensitive element 12 is
Is also held in a stable state.

[0013]

As described above, according to the present invention, the concave portion
Arc-shaped support with heat-sensitive elements arranged on both sides of the recess
Because it is held between the body and the frame-shaped holding body,
The thermal element can be firmly held by the holder,
Bend the holder to one side for the assembly work for holding
Only one operation is required, which has the effect of improving productivity.
is there.

Further , the holding body is formed in a frame shape, and
Since the width of the root is wide, the holder itself can be bent.
The strength in the state increases, and it holds in a more stable and stable state
It is possible to prevent loosening for a long period of time.
Yes. Furthermore, make sure that the support is located inside the frame-shaped holder.
Since it is provided, the overall size is small and relatively small.
The heat sensitive element can be held in a stable state.

[Brief description of drawings]

FIG. 1 is a sectional view of essential parts of a rice cooker showing a first embodiment of the present invention.

FIG. 2 is a plan view of the heat-sensitive element mounting device showing the first embodiment of the present invention.

FIG. 3 shows AA of FIG. 2 showing the first embodiment of the present invention.
It is a line sectional front view.

FIG. 4 is an exploded perspective view of the heat-sensitive element mounting device according to the first embodiment of the present invention.

FIG. 5 is an enlarged perspective view of a main part of a conventional heat-sensitive element mounting device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 main body, 2 protection frame, 6 heating element mounting device, 7 concave part, 8 hole, 9 stopper, 10 support body, 11
Holding body, 11a holding portion, 11b connecting portion, 12 thermosensitive element.

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-5-84128 (JP, A) Actual development Sho 60-170938 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47J 27/00 103

Claims (3)

(57) [Claims] 1. A heat-sensitive element mounting surface is formed to have a length substantially equal to that of the heat-sensitive element and is provided around a hole opened at both ends.
A concave portion having a stopper, an arc-shaped support body formed by cutting and raising the mounting surface on one side edge of the concave portion, and by cutting and raising the mounting surface on the other side edge of the concave portion. A frame-shaped holder formed, the thermosensitive element is disposed in the recess and the holder is bent by bending the holder, and the stopper, and the support ,
A heat-sensitive element mounting device for a heating cooker, characterized in that it is held in a sandwiched state with the holding body . 2. The holding body is a pair of holding surfaces for the mounting surface.
Make the width of the holding part wide so that the base is wide and narrows toward the tip
The heat-sensitive element mounting device for a heating cooker according to claim 1, which is formed . 3. The support is a frame-shaped inner side of the holding body.
2. It is formed so as to be opposed to the
A heat-sensitive element mounting device for the heating cooker described.