JP2022147048A - Gas rice cooker - Google Patents

Abstract

To suppress heating of a lower case 3 by heat transmission from a drip tray 5 in a gas rice cooker including an upper case 2 for supporting a rice cooking pot 1 in a state of being inserted from the upward, the lower case 3 for supporting the upper case 2 from below, a burner 4 assembled in the lower case 3 and heating the rice cooking pot 1, and a drip tray 5 interposed between the lower case 3 and the upper case 2 so as to enclose the burner 4.SOLUTION: A drip tray 5 is placed on a lower case 3 via a plurality of spacers 8 in the circumferential direction. A gas rice cooker is configured to secure gaps between the drip tray 5 and the lower case 3 in the circumferential intervals between the respective spacers 8.SELECTED DRAWING: Figure 2

Description

The present invention comprises a rice cooker, an upper case that supports the rice cooker inserted from above, a lower case that supports the upper case from below, a burner that is assembled to the lower case and heats the rice cooker, The present invention relates to a gas rice cooker mainly for commercial use provided with a soup saucer interposed between a lower case and an upper case so as to surround a burner.

In this type of rice cooker, the upper case is heated by combustion gas flowing between the rice cooker and the outer peripheral surface of the upper case to a considerably high temperature. Therefore, conventionally, there is known a device in which a cylindrical outer cover is provided to enclose the upper case with a gap in the radial direction (see, for example, Patent Document 1). According to this, it is possible to prevent a hand from touching the outer peripheral surface of the high-temperature upper case, and further, the outer cover is cooled by the air flowing through the gap between the upper case and the outer cover. is safe.

By the way, in a gas rice cooker, the saucer receives radiant heat from the flame of the burner and becomes very hot. Conventionally, since the soup tray is placed in close contact with the upper end of the lower case, the lower case is also heated by heat transfer from the soup tray. Therefore, the radiant heat from the lower case increases the ambient temperature of the installation location of the gas rice cooker. Therefore, in order to improve the working environment, it is desired to suppress heating of the lower case as much as possible.

JP 2012-161392 A

SUMMARY OF THE INVENTION An object of the present invention is to provide a gas rice cooker capable of suppressing heating of the lower case due to heat transfer from the saucer.

In order to solve the above problems, the present invention provides a rice cooker, an upper case that supports the rice cooker inserted from above, a lower case that supports the upper case from below, and a rice cooker assembled to the lower case, In a gas rice cooker comprising a burner for heating a rice cooker and a saucer interposed between a lower case and an upper case so as to surround the burner, the saucer is arranged via spacers at a plurality of locations in the circumferential direction. It is mounted on the lower case, and the space between the spacers in the circumferential direction is such that a gap is ensured between the soup tray and the lower case.

According to the present invention, the contact area between the soup tray and the lower case is small, and furthermore, an air insulation layer is secured by the gap in the portion other than the spacer between the soup tray and the lower case, so that the transmission from the juice tray is reduced. Heat-induced heating of the lower case can be suppressed.

Moreover, in the present invention, each spacer is desirably made of a material having a lower thermal conductivity than the material of the sauce pan. According to this, it is possible to suppress heating due to heat conduction from the sauce pan to the lower case via the spacer.

In this case, it is desirable to provide a plurality of spacer holding portions thinner than each spacer, which position and hold each spacer, at intervals in the circumferential direction on the juice receiving plate or the lower case. According to this, it is possible to prevent the displacement of the spacer, and even if the spacer is damaged, deformed, or lost due to aged deterioration, etc., a minimum gap is secured by the spacer holding portion between the sauce pan and the lower case. As a result, heating of the lower case due to heat transfer from the juice receiving tray can be suppressed to some extent.

Further, in the present invention, each spacer may be formed by a ridge portion formed on the lower case or the soup tray and protruding toward the side of the soup tray or the lower case. According to this, an increase in the number of parts due to provision of the spacer can be avoided, which is advantageous in terms of cost.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the gas rice cooker of embodiment of this invention. FIG. 2 is a cut side view taken along line II-II of FIG. 1; Fig. 4 is a perspective view of the soup saucer provided in the gas rice cooker of the embodiment, viewed obliquely from below; The perspective view of the disassembled state of the principal part of other embodiment of this invention.

1 and 2, the gas rice cooker of the embodiment of the present invention includes a rice cooker 1, an upper case 2 supporting the rice cooker 1 inserted from above, and an upper case 2 supported from below. a lower case 3, a burner 4 assembled to the lower case 3 for heating the rice cooker 1, and a sauce pan 5 interposed between the lower case 3 and the upper case 2 so as to surround the burner 1. and

The rice cooker 1 has a flange portion 11 projecting radially from its upper end portion, and handles 12 and 12 located on both sides of the flange portion 11 . In addition, a plurality of ribs 13 slightly extending downward from the lower surface of the flange portion 11 are protruded from the upper portion of the outer peripheral surface of the rice cooker 1 at intervals in the circumferential direction. When the rice cooker 1 is inserted into the upper case 2 from above, the rib 13 is seated on the upper end of the upper case 2, and the rice cooker 1 is supported on the upper case 2 with a gap corresponding to the length of the rib 13. I'm trying to be Further, a lid 14 having a double upper and lower structure is placed on the upper surface of the flange portion 11 .

An ignition lever 6 is provided in the lower case 3, and the burner 4 is ignited by pushing down the ignition lever 6. - 特許庁A thermal head 41 is attached to the burner 4 so as to come into contact with the bottom surface of the rice cooker 1 through the inner peripheral space of the burner 4 . Then, when the temperature of the rice cooker 1 reaches a predetermined boiling temperature, the burner 4 is extinguished by the action of the thermal head 41. - 特許庁

The upper case 2 has a cylindrical shape whose diameter decreases downward, and is seated on the outer peripheral portion of the upper surface of the sauce pan 5 at the inwardly bent flange portion 21 at the lower end. Combustion gas from the burner 4 is exhausted to the outside from the upper end of the upper case 2 through the gap between the upper case 2 and the rice cooker 1.例文帳に追加An outer cover 7 is provided to surround the upper case 2 with a gap in the radial direction, and a partition cylinder 22 is attached to the upper part of the upper case 2 to divide the gap between the outer cover 7 and the outer cover 7 in the radial direction. . A window hole 71 for checking the ignition of the burner 4 is formed in the lower portion of the outer cover 7 so as to be positioned above the ignition lever 6 .

By providing the outer cover 7 as described above, it is possible to prevent a hand from touching the outer peripheral surface of the upper case 2, which becomes hot during rice cooking. It is safe even if the cover 7 is cooled and the hand touches the outer cover 7. - 特許庁However, when rice is cooked, the soup tray 5 receives radiant heat from the flame of the burner 4 and becomes considerably hot. Therefore, there is a possibility that the lower case 3 is also heated by the heat transfer from the sauce pan 5, and the radiant heat from the lower case 3 raises the ambient temperature of the installation location of the gas rice cooker. Therefore, in order to improve the working environment, it is desired to suppress heating of the lower case 3 as much as possible.

Therefore, in this embodiment, the juice receiving plate 5 is placed on the lower case 3 , specifically, on the inwardly bent flange portion 31 at the upper end of the lower case 3 via spacers 8 at a plurality of locations in the circumferential direction. A gap is ensured between the juice receiving plate 5 and the lower case 3 at the circumferential intervals between the spacers 8 , 8 . As a result, the contact area between the saucer 5 and the lower case 3 is reduced, and an air insulation layer is secured by the gap in the portion other than the spacer 8 between the saucer 5 and the lower case 3.例文帳に追加Therefore, the heating of the lower case 3 due to the heat transfer from the soup tray 5 can be suppressed.

More specifically, with reference to FIG. 3, three spacer mounting plates 81 having a substantially circular arc shape are attached to the lower surface of the outer peripheral portion of the sauce pan 5 with intervals in the circumferential direction. A pair of spacers 8, 8 made of a material, such as rubber, having a lower thermal conductivity than stainless steel, which is the material of the soup pan 5, is attached to the lower surfaces of both circumferential ends of the saucer 5 with double-sided adhesive tape. As a result, heating due to heat conduction from the sauce pan 5 to the lower case 3 via the spacer 8 can also be suppressed. The spacer mounting plate 81 is made of stainless steel, and the distal end of a radially inwardly extending tongue portion 81a provided at the center in the circumferential direction of the spacer mounting plate 81 is fixed to the saucer 5 by rivets 81b. 81 is attached to the sauce tray 5.

Six spacer holding portions 82 thinner than the spacers 8 for positioning and holding the spacers 8 are provided on the juice receiving plate 5 at intervals in the circumferential direction. Specifically, spacer holding portions 82 made of stainless steel and having positioning notches 82 a for receiving the spacers 8 are spot-welded to the lower surfaces of the circumferential ends of the spacer mounting plates 81 . It is also possible to spot-weld the spacer holding portion 82 to the bottom surface of the sauce pan 5 . However, in this case, welding traces appear on the upper surface of the soup receiving plate 5, and the appearance becomes unsightly. Therefore, in this embodiment, the spacer holding portion 82 is attached to the juice receiving plate 5 via the spacer attachment plate 81 .

In any case, by providing the spacer holding portion 82, it is possible to prevent the spacer 8 from being displaced. A minimum space is secured by the spacer holding portion 82 between them, so that the heating of the lower case 3 due to the heat transfer from the sauce pan 5 can be suppressed to some extent.

A tubular skirt portion 51 that is externally inserted on the upper end portion of the lower case 3 is vertically provided on the outer peripheral edge of the juice receiving plate 5 for positioning with respect to the lower case 3 . However, a slight radial gap is ensured between the skirt portion 51 and the lower case 3 so that heat conduction to the lower case 3 via the skirt portion 51 can be prevented.

Next, another embodiment shown in FIG. 4 will be described. In this embodiment, each spacer 8 is composed of the lower case 3, specifically, the protrusion 31a formed on the inwardly bent flange portion 31 at the upper end of the lower case 3 and projecting upward toward the juice receiving tray 5 side, that is, upward. I'm doing According to this, an increase in the number of parts due to provision of the spacer 8 can be avoided, which is advantageous in terms of cost.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited thereto. For example, it is possible to provide the spacer holding portion 82 in the lower case 3 and attach the spacer 8 to the lower case 3 . Further, as a modification of the other embodiment, each spacer 8 may be formed of a protrusion formed on the sauce pan 5 and projecting toward the lower case 3 side, that is, downward.

DESCRIPTION OF SYMBOLS 1... rice cooker, 2... upper case, 3... lower case, 31a... rib part, 4... burner, 5... sauce pan, 8... spacer, 82... spacer holding part.

Claims (4)

A rice cooker, an upper case supporting the rice cooker inserted from above, a lower case supporting the upper case from below, a burner assembled to the lower case for heating the rice cooker, and a burner surrounding the burner. A gas rice cooker comprising a saucer interposed between the lower case and the upper case,
The juice pan is mounted on the lower case via spacers at a plurality of locations in the circumferential direction, and gaps are secured between the juice pan and the lower case in the circumferential intervals between the spacers. rice cooker. 2. The gas rice cooker according to claim 1, wherein each spacer is made of a material having a lower thermal conductivity than the material of the sauce pan. 3. The method according to claim 2, wherein a plurality of spacer holding portions thinner than each spacer for positioning and holding each spacer are provided at intervals in the circumferential direction on the sauce pan or the lower case. gas cooker. 2. The gas rice cooker according to claim 1, wherein each of said spacers comprises a ridge portion formed on said lower case or said soup tray and projecting toward the soup tray or the lower case.

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