JPH0847458A - Electric heating cooker - Google Patents

Abstract

PURPOSE:To obtain an electric heating cooker which has a high cooking temperature accuracy since the relative positional relation of an operating part to a thermostat is always kept constant, by a method wherein the cooker is provided with a main body, heat shield plate, a heating element, a plate and a support, and the operating part and the thermostat are integrally assembled in such a way that the operating part and a support member are mounted on e support and the thermostat is attached to the the support member. CONSTITUTION:A rack 20 with ant operating part 21 is mounted in a guide hole 18 provided in a support 17 and a support member 2b with a raised part 24 and a guide part 25 is mounted on a fixing part 19 provided on the support 17. A thermostat 29 with a pinion gear 30 and a temperature sensor 31 is arranged on the support member 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature adjusting device for an electric heating cooker such as a hot plate.

[0002]

2. Description of the Related Art Conventionally, an electric heating cooker of this type is shown in FIG.
The structure shown in FIG. That is, the thermostat 2 is attached to the heating element 1, and the pinion gear 3 attached to the thermostat is engaged with the rack 6 connected to the operation knob 5 attached to the main body 4.

In the above structure, the position of the operating knob 5 is adjusted to change the operating temperature of the thermostat 2 so that the cooking temperature corresponding to the cooking menu is selected and cooking is performed.

[0004]

When the cooking temperature is selected and cooking is performed by adjusting the position of the operation knob 5 in such a conventional electric heating cooker, the thermostat 2 is used.
When attaching the to the heating element 1, there is a positional shift in the front-rear and left-right directions, so an excessive gap is created in the meshing between the pinion gear 3 and the rack 5 attached to the thermostat, and vice versa. The problem is that the temperature cannot be adjusted due to the occurrence of kneading, and the angle shift also occurs, so that the correlation between the position of the operation knob 5 and the set temperature of the thermostat cannot be maintained, and the accuracy of the cooking temperature cannot be ensured. was there.

The present invention has been made to solve the above-mentioned problems, and the operating portion and the support metal fitting are mounted on the support body, and the thermostat is disposed on the supporting metal fitting to form an integral structure, whereby the relative position of the operating portion and the thermostat is set. It is the first to provide an electric heating cooker with high accuracy in cooking temperature by keeping the relationship constant.
The purpose is.

Further, a rack having an operating portion is mounted in a guide hole provided in the support, and a support metal fitting having a guide portion and a guide portion is mounted in a fixed portion provided in the support, and the pinion gear is attached to the support metal fitting. A second object of the present invention is to provide a thermostat having a temperature sensor and a temperature sensor so that the thermostat can be assembled easily and at a low cost.

Further, by accommodating a support formed in a substantially arc shape between the outer peripheral wall and the inner peripheral wall of the substantially cylindrical body body, the operating portion can be temperature-controlled along the outer circumference of the cylinder of the body body. The third purpose is to prevent the operation part from protruding significantly.

Further, the support fitting is provided with a guide portion having a tapered cut-out portion and a bent portion, a through-hole portion of a thermostat is attached to the cut-over portion, and a temperature sensing portion of the thermostat is attached to the guide portion. Therefore, the fourth object is to prevent the positional deviation and the angular deviation.

Further, the temperature sensing portion of the thermostat is screwed and fixed to a boss portion having a flat portion protruding from the opening portion of the heat shield plate, and packing is provided at the boss portion and the opening portion of the heat shield plate. A fifth object is to prevent water from entering the thermostat charging section by sandwiching it between the support fittings.

Further, the rack is detached from the integrally formed support body by integrally molding the operation portion and the gear train and disposing locking pawls that engage with guide holes provided in the support body of the rack. The sixth purpose is to prevent

[0011]

According to the first means of the present invention for achieving the first object, the present invention mounts an operating portion and a support fitting on a support, and a thermostat is arranged on the support fitting. It is an integrated structure.

A second means of the present invention for achieving the second object is to mount a rack having an operating portion in a guide hole provided in a support and to come to a fixing portion provided in the support. A support fitting having a portion and a guide portion is mounted, and a thermostat having a pinion gear and a temperature sensing portion is arranged on the support fitting.

A third means of the present invention for attaining the third object is to accommodate a support formed in a substantially arc shape between an outer peripheral wall and an inner peripheral wall of a substantially cylindrical body body. Is.

A fourth means of the present invention for attaining the fourth object is to provide a support fitting with a tapered cut-out portion and a guide portion having a bent portion, and the thermostat penetrates through the cut-over portion. The hole part is attached, and the thermostat temperature sensing part is attached to the guide part.

A fifth means of the present invention for achieving the fifth object is to fix the temperature sensing portion of the thermostat to a boss portion having a flat portion protruding from the opening of the heat shield plate by screwing. A packing is arranged around the boss and the opening of the heat shield plate and sandwiched by support fittings.

A sixth means of the present invention for achieving the sixth object is to form a rack integrally with an operating portion and a gear train, and to engage with a guide hole provided in a support body. Is provided.

[0017]

According to the present invention, the operating portion and the support metal fitting are mounted on the support body by the above-mentioned first means, and the thermostat is arranged on the support metal fitting to form an integral structure. Misalignment may cause excessive clearance in the meshing between the pinion gear and the rack, causing rattling, or conversely excessive meshing may prevent the temperature from being adjusted. It is possible to prevent the deviation of the correlation between the temperature and the set temperature of the thermostat.

Further, a rack having an operating portion is attached to the guide hole provided in the support by the second means, and a support metal fitting having a guide portion and a guide portion is attached to the fixing portion provided in the support. By disposing a thermostat equipped with a pinion gear and a temperature sensing portion in the support fitting, the assembly can be easily and inexpensively made into an integral structure by fitting and fixing without using a tool such as screw fixing.

Further, the operating means integrated by accommodating a support formed in a substantially circular arc shape between the outer peripheral wall and the inner peripheral wall of the substantially cylindrical main body by the third means is provided on the outer periphery of the cylinder of the main body. The temperature control operation can be performed along with it, and it is possible to prevent large protrusions from the body of the main body as the operation part.

According to the fourth means, the support fitting is provided with a guide portion having a tapered cut-out portion and a bent portion, a thermostat through-hole portion is attached to the cut-out portion, and the temperature of the thermostat is attached to the guide portion. Since the sensing unit is attached, positional deviation of the thermostat in the front-rear and left-right directions and angular misalignment in the rotational direction are prevented.

Further, by the fifth means, the temperature sensing portion of the thermostat is screwed and fixed to a boss portion having a flat surface projecting from the opening of the heat shield plate, and packing is provided between the boss portion and the heat shield plate opening. Since it is provided and sandwiched by the support fittings, it is possible to prevent the water vapor spilled from entering the charging part of the thermostat.

Further, since the rack is integrally formed with the operating portion and the gear train by the sixth means and the locking claws which engage with the guide holes provided in the support are provided, the rack is dropped from the support. Can be prevented.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG.
Reference numeral 10 is a substantially cylindrical body body, which has an outer peripheral wall 11 and an inner peripheral wall 12.
Made of. Reference numeral 13 is a plate-shaped heat shield plate and a body 10
It is located inside. Reference numeral 14 denotes a heating element, which is disposed above the heat shield plate 13 and heats the plate 15 placed on the upper surface. Reference numeral 16 denotes a glass lid which is located above the plate 15 and covers the upper surface. Reference numeral 17 is a support, which is a guide hole 18 and a fixing portion 1.
Have nine. Reference numeral 20 is a rack, which is an operation unit 21 and a gear train 2.
2 and the locking claw 23 are integrally molded, and are engaged and locked with the end of the guide hole 18 so that the rack does not fall off when mounted in the guide hole 18 of the support 17. A support metal fitting 26 having a coming portion 24 and a guide portion 25 is attached to the fixed portion 19, and the coming portion 24 passes through the hole portion 27 of the fixing portion 19 and rides over the convex portion 28 to be locked. Then, the support 17 and the support fitting 26 are integrated. Reference numeral 29 is a thermostat, which includes a pinion gear 30, a temperature sensing portion 31, and a through hole portion 32. The through hole portion 32 is provided in the cutout portion 33 of the support fitting 26, and between the two bent portions 34. Since the temperature sensing parts 31 are mounted respectively, there is no positional deviation in the front / rear or left / right directions of the thermostat and angular deviation in the rotational direction. With these, the operation unit 21 and the thermostat 29 are integrally configured. Reference numeral 35 denotes a boss portion having a flat portion 36 provided so as to project from the heating element 14 and projecting from an opening portion 37 of the heat shield plate 13. Therefore, a screw is provided through a mounting hole 38 provided at the temperature sensing portion 31 of the thermostat 29. The operation portion 21 and the thermostat 29, which are integrally configured, can be easily attached only by fastening and fixing. 39 is a packing, which is attached to the boss portion 35 and is arranged between the heat shield plate 13 and the support fitting 26 to prevent the water that has spilled from entering the charging portion of the thermostat.

According to the present invention having the above-mentioned structure, since the operating portion 21 and the support metal fitting 26 are mounted on the support body 17 and the thermostat 29 is disposed on the support metal fitting 26, the thermostat 29 is integrated into the heating element. When it is attached to 14, the position of the pinion gear 30 and the rack 20 may be misaligned, resulting in rattling, or conversely, excessive meshing may not be possible to adjust the temperature. Further, there is no problem such as a shift in the correlation between the position of the operation portion 21 and the set temperature of the thermostat 29 due to an angle shift.

Further, the rack 20 having the operation portion 21 is mounted in the guide hole 18 provided in the support body 17, and the moving portion 24 and the guide portion 2 are provided at the fixing portion 19 provided in the support body 17.
5 is mounted, and the thermostat 29 having the pinion gear 30 and the temperature sensing portion 31 is mounted on the support metal 26, so that the fitting and fixing does not require a screw fixing tool or the like. It is easy to assemble and inexpensive.

A support 17 is formed between the outer peripheral wall 11 and the inner peripheral wall 12 of the main body 10 having a substantially cylindrical shape in a substantially arc shape.
Since the integrated operation part 21 is stored, the temperature control operation can be performed along the cylindrical outer periphery of the main body 10, and the operation part 21 can be stored compactly as an operating part without protruding significantly from the main body. .

Further, the support fitting 26 is provided with a guide portion 25 having a tapered cut-out portion 33 and a bent portion 34, a through-hole portion 32 of a thermostat 29 is attached to the cut-out portion 33, and the guide portion 25 is provided with a thermostat. 29
Since the temperature sensing unit 31 can be mounted, the mounting is easy, and the positional deviation in the front-rear and left-right directions and the angular deviation in the rotation direction do not occur.

The temperature sensing unit 3 of the thermostat 29 is also provided.
1 is screwed and fixed to a boss portion 35 having a flat portion 36 projecting from the opening portion 37 of the heat shield plate 13, and packing 39 is disposed in the boss portion 35 and the opening portion 37 of the heat shield plate 13 to support it. Since it is sandwiched by the metal fittings 26, it prevents the spilled water from entering the charging part of the thermostat 29.

Further, the operation section 21 and the gear train 22 of the rack 20 are integrally formed, and the support member 1 is attached to the rack 20.
Since the locking claw 23 that engages with the guide hole 18 provided in the unit 7 is provided, the rack 20 can be prevented from dropping and can be carried in the state of a unit component.

[0031]

As described above, according to the present invention, the operating portion and the support metal fitting are mounted on the support body, and the thermostat is disposed on the support metal fitting to form an integral structure. Misalignment may cause excessive clearance in the meshing between the pinion gear and the rack, causing rattling, or conversely excessive meshing may prevent the temperature from being adjusted. It is possible to provide an electric heating cooker capable of preventing a shift in a correlation between a position and a set temperature of a thermostat and accurately selecting a cooking temperature.

Further, a rack having an operating portion is mounted in a guide hole provided in the support, and a support fitting having a guide portion and a guide portion is mounted in a fixed portion provided in the support, and the pinion gear is attached to the support fitting. Since fitting and fixing such as screw fixing for arranging a thermostat having a temperature sensing unit does not require a tool, it is easy to assemble and the integrated structure can be realized at low cost.

Further, since the support body formed in a substantially arc shape is housed between the outer peripheral wall and the inner peripheral wall of the substantially cylindrical body body,
The integrally-configured operating portion can be operated to adjust the temperature along the outer circumference of the cylinder of the main body, and the operating portion can be prevented from protruding significantly from the main body to make the cooking space compact.

Further, the support fitting is provided with a guide portion having a tapered cut portion and a bent portion, a through hole portion of a thermostat can be attached to the cut portion, and a temperature sensing portion of the thermostat can be attached to the guide portion. It is easy to mount and can prevent the positional deviation in the front-rear and left-right directions and the angular deviation in the rotation direction.

Further, the temperature sensing portion of the thermostat is screwed and fixed to a boss portion having a flat portion projecting from the opening portion of the heat shield plate, and packing is provided at the boss portion and the opening portion of the heat shield plate. Since it is sandwiched between the support fittings, it is possible to provide a highly safe electric heating cooker that prevents water that has spilled over from entering the charging part of the thermostat.

Further, since the rack is formed integrally with the operating portion and the gear train, and the locking claws that engage with the guide holes provided in the support of the rack are provided, the rack is detached from the integrated support. It is possible to prevent it from being carried and carry it as a unit component.

[Brief description of drawings]

FIG. 1 is a front view of an electric heating cooker showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of main parts of the electric heating cooker.

FIG. 3 is a rear view of the inside of the main part of the electric heating cooker.

FIG. 4 is a main unit diagram of the electric heating cooker.

FIG. 5 is a vertical sectional view of a main unit of the electric heating cooker.

FIG. 6 is a vertical sectional view of a main part of a conventional electric heating cooker.

[Explanation of symbols]

 10 Main body 11 Outer wall 12 Inner wall 13 Heat shield 14 Heat generator 15 Plate 16 Lid 17 Support 18 Guide hole 19 Fixed part 20 Rack 21 Operation part 24 Visiting part 25 Guide part 26 Support metal fitting 29 Thermostat 30 Pinion gear 31 Temperature sensor

Claims (6)

[Claims] 1. A substantially cylindrical body body, a dish-shaped heat shield plate disposed inside the body body, a heating element disposed above the heat shield plate, and mounted on an upper surface of the heating element. Plate and
A glass lid located at the top of the plate and covering the top surface of the plate, and a support disposed inside the main body,
An electric heating cooker in which an operating portion and a support fitting are mounted on the support, and a thermostat is arranged on the support fitting. 2. A rack having an operation portion is mounted in a guide hole provided in the support, and a support fitting having a guide portion and a guide portion is mounted in a fixing portion provided in the support, and the pinion gear is attached to the support fitting. An electric heating cooker according to claim 1, further comprising a thermostat having a temperature sensing unit. 3. The electric heating cooker according to claim 1, wherein the support body formed in a substantially arc shape is housed between the outer peripheral wall and the inner peripheral wall of the substantially cylindrical body body. 4. A support fitting is provided with a guide portion having a tapered cut-out portion and a bent portion, a thermostat through-hole portion is attached to the cut-out portion, and the thermostat temperature sensing portion is provided in the guide portion. The electric heating cooker according to claim 2, which is equipped with. 5. The temperature sensing portion of the thermostat is screwed and fixed to a boss portion having a flat surface protruding from the opening of the heat shield plate, and packing is arranged at the boss portion and the opening of the heat shield plate. The electric heating cooker according to claim 2, further comprising: 6. The electric heating cooker according to claim 2, wherein the rack is formed integrally with the operating portion and the gear train, and is provided with locking claws that engage with guide holes provided in the support.