JP5395821B2 - Gas cooker - Google Patents

Description

  In the present invention, the upper case that supports the rice cooker inserted from above is placed on the lower case with the burner assembled, and the burner combustion gas passes through the gap between the upper case and the rice cooker. It is related with the gas rice cooker which was made to exhaust outside from the upper end of.

  In this type of rice cooker, the upper case is heated by the combustion gas flowing between it and the rice cooker, and the outer peripheral surface of the upper case becomes considerably hot. Therefore, conventionally, Patent Document 1 discloses a case in which a cylindrical outer cover that surrounds the upper case with a radial gap is provided. According to this, it is possible to prevent the hand from touching the outer peripheral surface of the upper case at a high temperature, and further, the outer cover is cooled by the air flowing in the gap between the upper case and the outer cover, and the hand touches the outer cover. Even safe.

  By the way, when cooking rice, the upper part of the lower case becomes quite hot due to the heat from the burner attached to it. However, in the above-mentioned conventional example, the outer cover is fixed to the upper case so that the lower end of the outer cover is at the same height as the lower end of the upper case, so that the hand touches the upper outer peripheral surface of the lower case. It cannot be prevented with an outer cover.

  In this case, the lower end of the outer cover may be positioned lower than the lower end of the upper case, and the outer cover may prevent the hand from touching the upper outer peripheral surface of the lower case, but this causes the following problems. . That is, when rice cooking is completed and the upper case is replaced with a table such as a table, while the rice cooker is stored, the lower end of the outer cover located below the lower end of the upper case sits on the table, The weight including the hook must be supported by the outer cover. Here, when cooking rice, the lower case of the upper case sits on the upper surface of the lower case, and it is necessary to support the weight including the rice cooker with the upper case, so the upper case is originally configured to be highly rigid, If the outer cover is made of high rigidity so that the weight can be supported by the outer cover when the table is replaced, the weight increases and the cost increases.

Japanese Patent No. 2955821

  In view of the above points, the present invention can prevent the outer cover from touching the upper outer peripheral surface of the lower case as well as the upper case with the outer cover, and can reduce the weight of the outer cover without making it highly rigid. The problem is to provide an inexpensive gas rice cooker.

  In order to solve the above problems, the present invention is such that the upper case that supports the rice cooker inserted from above is placed on the lower case with the burner assembled, and the combustion gas of the burner is between the upper case and the rice cooker. A gas rice cooker configured to be exhausted to the outside from the upper end of the upper case through a gap between the outer case and the outer cover that includes a cylindrical outer cover that surrounds the upper case with a radial gap. Is attached to the upper case so as to be freely movable in the vertical direction.When the outer cover is lowered, the lower end of the outer cover is located below the lower end of the upper case, and when the outer cover is raised, the lower end of the outer cover is It is located at the height above the lower end of the case.

  According to the present invention, when the upper case is placed on the lower case and cooked, the outer cover is lowered to its lowered position by its own weight, and the lower case of the outer cover protrudes downward from the lower end of the upper case. The upper outer peripheral surface of is surrounded. Therefore, when cooking rice, the outer cover can prevent the hand from touching not only the upper case but also the upper outer peripheral surface of the lower case. When the upper case is replaced with the table, the outer cover is pushed up from the lowered position when the lower end of the outer cover comes into contact with the table, the lower end of the upper case is seated on the table, and includes the rice cooker. Weight is supported by the upper case. Therefore, it is not necessary to make the outer cover highly rigid, and the weight can be reduced and the cost can be reduced.

  In the present invention, a handle protruding radially outward from the outer cover is fixed to the upper portion of the upper case, and a concave notch for receiving the handle is formed at the upper end of the outer cover. An overhanging portion is provided in the outer cover portion adjacent to the notch in the radially inward direction. A screw hole is formed in one of the overhanging portion and the portion of the outer cover, and the other is screwed into the screw hole. It is desirable to form an insertion hole through which the mounting screw to be inserted is inserted with play in the vertical direction.

  According to this, the upper case and the outer cover can be easily separated by removing the mounting screw. And both can be cleaned in the state which separated the upper case and the outer cover, and maintainability improves. Furthermore, when attaching the outer cover to the upper case, the insertion hole or screw hole formed in the portion of the outer cover adjacent to the notch is extended just by assembling the outer cover so that the handle fits into the notch. The outer cover can be easily positioned in the circumferential direction with respect to the upper case so as to face the screw hole or the insertion hole formed in the portion, and the workability of mounting the outer cover is improved. By forming the insertion hole so that the mounting screw is inserted with play in the up and down direction, the outer cover can be freely moved in the up and down direction by this play with respect to the upper case.

  By the way, if a finger is accidentally inserted deeply into the gap between the upper case and the outer cover from above, the finger may become difficult to pull out due to the finger joint being caught. Moreover, at the time of cooking rice, the upper part of the upper case becomes hotter than the lower part. And the upper part of an outer cover will be heated with the radiant heat from the upper part of an upper case.

  Therefore, in the present invention, it is preferable that an annular partition plate that bisects the gap between the upper portion of the upper case and the outer cover in the radial direction is fixed to the upper outer periphery of the upper case. According to this, even if an attempt is made to insert a finger from above into the gap between the upper case and the outer cover, the partition plate becomes an obstacle, and the finger can be prevented from being inserted deeply, which is safe. Moreover, the radiant heat from the upper part of an upper case is reflected by a partition plate, and the heating of the upper part of an outer cover can be suppressed. Furthermore, since the radiant heat is reflected by the partition plate, it is possible to reduce the heating loss due to the radiation heat being diffused to the outside.

  Further, when the handle is fixed to the upper part of the upper case as described above, and when the partition plate is fixed, it is desirable to provide the handle on the outer peripheral surface of the partition plate. According to this, heating of the handle can be suppressed by the partition plate.

The perspective view of the gas rice cooker of embodiment of this invention. Sectional drawing cut | disconnected by the II-II line | wire of FIG. The perspective view of the isolation | separation state of the upper case and outer cover of the gas rice cooker of embodiment. The expanded sectional view cut | disconnected by the IV-IV line of FIG.

  With reference to FIG. 1, FIG. 2, the gas rice cooker of embodiment of this invention can insert rice cooker 1 mounted on rice cooker 1, lower case 2, and lower case 2 from upper direction freely. An upper case 3 and an outer cover 4 surrounding the upper case 3 with a gap in the radial direction are provided.

  The rice cooker 1 has a flange portion 11 that projects in the radial direction at the upper end portion. A plurality of ribs 12 project from the intermediate portion in the vertical direction of the outer peripheral surface of the rice cooker 1 to the lower surface of the flange portion 11 with a circumferential interval. When the rice cooker 1 is inserted into the upper case 3 from above, the rib 12 on the lower surface of the flange portion 11 is seated on the upper end of the upper case 3, and the rice cooker 1 has a protrusion height of the rib 12 on the upper case 3. It is supported in a state where there is a gap. In addition, a lid 13 having an upper and lower double structure is placed on the upper surface of the flange portion 11.

  On the upper surface of the lower case 2, an annular juice tray 21 having an outer cylindrical fitting portion 21 a that is fitted on the upper end of the peripheral wall portion of the lower case 2 is mounted. An annular burner 22 protruding upward is assembled to the lower case 2. Further, the lower case 2 is provided with an ignition lever 23, and the burner 22 is ignited by depressing the ignition lever 23. The lower case 2 is further assembled with a thermal head 24 that comes into contact with the bottom surface of the rice cooker 1 through the inner circumferential space of the burner 22, and when the temperature of the rice cooker 1 reaches a predetermined cooking temperature, the thermal sensitivity is increased. The burner 22 is extinguished by the action of the head 24.

  The upper case 3 has a cylindrical shape that is reduced in diameter toward the lower side, and is seated on the outer peripheral portion of the upper surface of the juice tray 21 of the lower case 2 at a flange portion 31 that is formed at the lower end and is bent inward in the radial direction. And the combustion gas of the burner 22 is exhausted from the upper end of the upper case 3 to the outside through the gap between the upper case 3 and the rice cooker 1. Note that the upper case 3 is made of a highly rigid product made of a drawn product so that the weight of the rice cooker 1 can be supported.

  Referring to FIG. 3, an annular partition plate 32 that fixes a gap between the upper portion of the upper case 3 and the outer cover 4 in the radial direction is fixed to the upper outer periphery of the upper case 3. In addition, grips 33 projecting radially outward from the outer cover 4 are provided at two locations 180 ° apart in the circumferential direction of the outer peripheral surface of the partition plate 32.

  Referring to FIG. 4, the handle 33 includes a resin handle main body 331 and a sheet metal back plate 332 provided radially inward of the handle main body 331. The handle main body 331 is formed with a pair of boss portions 333 protruding inward in the radial direction. Further, a U-shaped fixing bracket 34 is provided on the inner peripheral side of the installation location of the handle 33 of the partition plate 32. The radially inner end of the boss portion 333 is formed in a small-diameter stepped shape, and the boss portion 333 is brought into contact with the fixing bracket 34 through a through hole formed in the back plate 332 and the partition plate 32, thereby The back plate 332 and the partition plate 32 are sandwiched between the stepped portion of the portion 333 and the fixing bracket 34. Then, a screw 341 is screwed into the boss portion 333 from the inner peripheral side of the fixing bracket 34, and the handle 33 and the partition plate 32 are fixed to the fixing bracket 34, and then the fixing bracket 34 is screwed onto the upper portion of the upper case 3. It is fixed with. Thereby, the partition plate 32 and the handle 33 are fixed to the upper part of the upper case 3 via the fixing bracket 34.

  In addition, spacer metal fittings 35 are fixed at a plurality of locations in the circumferential direction of the outer peripheral surface of the partition plate 32. The spacer metal fitting 35 has a convex portion 351 protruding outward in the radial direction, and tongue pieces 352 on both circumferential sides extending radially inward through slits formed in the partition plate 32. The gap between the partition plate 32 and the outer cover 4 is maintained at a constant width by the convex portion 351, and the gap between the partition plate 32 and the upper case 3 is maintained at a constant width by the tongue piece portion 352. I have to. Further, a plurality of radially extending spacer pieces 36 are radially fixed to the lower outer peripheral surface of the upper case 3 so that the gap between the lower portions of the upper case 3 and the outer cover 4 is maintained at a constant width. ing.

  The outer cover 4 is formed in a cylindrical shape in which a sheet metal is rolled and joined at both ends. At two locations in the circumferential direction at the upper end of the outer cover 4, recessed portions 41 for receiving the respective grips 33 are formed. Further, the back plate 332 of the handle 33 is provided with overhang portions 334 on both sides in the circumferential direction facing radially inward portions of the outer cover 4 adjacent to both sides in the circumferential direction of the recessed portion 41, and A screw hole 335 is formed. Further, an insertion hole 42 is formed in the portion of the outer cover 4. Then, the outer cover 4 is attached to the upper case 3 by an attachment screw 43 made of a decorative screw screwed into the screw hole 335 through the insertion hole 42.

  If the outer cover 4 is provided in this manner, it is possible to prevent the hand from touching the outer peripheral surface of the upper case 3 that becomes hot during rice cooking, and further, the outer air flows through the gap between the upper case 3 and the outer cover 4. It is safe even if the cover 4 is cooled and the hand touches the outer cover 4. However, at the time of rice cooking, the soup pan 21 is heated by the radiant heat from the flame of the burner 22, and the cylindrical fitting portion 21 a on the outer periphery of the soup pan 21 exposed on the upper outer peripheral surface of the lower case 2 becomes hot. Therefore, the lower end of the outer cover 4 is positioned below the lower end of the upper case 3, and the upper outer peripheral surface of the lower case 2 is surrounded by the lower end of the outer cover 4 to prevent the hand from touching the fitting portion 21a. It is desirable.

  Here, when the outer cover 4 is fixed to the upper case 3 with the lower end of the outer cover 4 positioned below the lower end of the upper case 3, the upper case is stored with the rice cooker 1 stored after the completion of rice cooking. When 3 is replaced from the lower case 2 to a table such as a table, the lower end of the outer cover 4 is seated on the table, and the weight including the rice cooker must be supported by the outer cover 4. For this reason, it is necessary to attach various reinforcing members to the outer cover 4 or make the outer cover 4 thick to increase the rigidity of the outer cover 4, which increases the weight and costs.

  Therefore, in this embodiment, the insertion hole 42 is formed as a long hole that is long in the vertical direction as shown in FIG. 3 so that the mounting screw 43 is inserted with play in the vertical direction. Therefore, the outer cover 4 can freely move in the vertical direction with respect to the upper case 3 by a predetermined stroke equal to the above play. The predetermined stroke is such that the lower end of the outer cover 4 is positioned below the lower end of the upper case 3 at the lowered position, and the lower end of the outer cover 4 is positioned higher than the lower end of the upper case 3 at the raised position. Set to In addition, it is desirable to set the lowered position so that the lower end of the outer cover 4 is positioned at a height equal to or lower than the lower end of the cylindrical fitting portion 21 a of the soup pan 21.

  According to this embodiment, when the upper case 3 is placed on the lower case 2 and cooked, the outer cover 4 is lowered to the lowered position by its own weight and protrudes downward from the lower end of the upper case 3. The upper outer peripheral surface of the lower case 2 is surrounded by the lower end portion of the lower case 2. Therefore, at the time of rice cooking, the outer cover can prevent the hand from touching not only the upper case 3 but also the upper outer peripheral surface of the lower case 2, and safety is improved. Further, when the upper case 3 is replaced with the table from the lower case 2, the outer cover 4 is pushed up from the lowered position when the lower end of the outer cover 4 comes into contact with the table, and the flange portion 31 at the lower end of the upper case 3 is moved to the table. The weight including the rice cooker 1 is supported by the upper case 3. Therefore, it is not necessary to make the outer cover 4 highly rigid, and the weight can be reduced and the cost can be reduced.

  Further, the upper case 3 and the outer cover 4 can be easily separated by removing the mounting screw 43. And both can be cleaned in the state which isolate | separated the upper case 3 and the outer cover 4, and maintainability improves. Here, if a decorative screw is used as the mounting screw 43 as in this embodiment, it is convenient that the mounting screw 43 can be attached and detached without using a tool. A thumbscrew may be used as the mounting screw 43.

  Further, when the outer cover 4 is attached to the upper case 3, an insertion hole formed in the portion of the outer cover 4 adjacent to the recessed portion 41 simply by assembling the outer cover 4 so that the handle 33 fits into the recessed portion 41. The outer cover 4 can be easily positioned in the circumferential direction with respect to the upper case 3 so that 42 faces the screw hole 335 formed in the overhang portion 334 of the handle 33. That is, the handle 33 and the recessed portion 41 function as a circumferential direction positioning guide for the outer cover 4, and the workability of attaching the outer cover 4 is improved.

  It is also conceivable to form a screw hole in the part of the partition plate 32 or the upper case 3 away from the handle 33 and to form an insertion hole for the mounting screw 43 in the part of the outer cover 4 facing this screw hole. It is done. However, even if the outer cover 4 is assembled so that the handle 33 fits into the recess 41 due to a shift in the mounting position of the handle 33, the insertion hole does not face the screw hole, and the outer cover by the mounting screw 43. 4 may not be attached. On the other hand, the screw hole 335 is formed in the overhanging portion 334 of the handle 33 as in the present embodiment, and the insertion hole 42 is formed in the portion of the outer cover 4 facing the overhanging portion 334 (the portion of the outer cover 4 adjacent to the recessed portion 41). If the mounting position of the handle 33 is deviated, the insertion hole 42 faces the screw hole 335 by assembling the outer cover 4 so that the handle 33 fits into the recess 41. Therefore, the outer cover 4 can be securely attached, which is advantageous.

  By the way, if a finger is mistakenly inserted deeply into the gap between the upper case 3 and the outer cover 4 from above, the finger may become difficult to pull out due to the finger joint being caught. Moreover, at the time of rice cooking, the upper part of the upper case 3 becomes hotter than the lower part. And the upper part of the outer cover 4 will be heated by the radiant heat from the upper part of the upper case 3. FIG.

  However, in this embodiment, even if an attempt is made to insert a finger from above into the gap between the upper case 3 and the outer cover 4, the partition plate 32 fixed to the upper outer periphery of the upper case 3 serves as an obstacle. Can be prevented from being inserted deeply and is safe. Moreover, since the radiant heat from the upper part of the upper case 3 is reflected by the partition plate 32 and the heating of the upper part of the outer cover 4 can be suppressed, and the radiant heat is reflected by the partition plate 32, the radiant heat is transferred to the outside. It is also possible to reduce the heating loss due to the diffusion of. Furthermore, in this embodiment, since the handle 33 is provided on the outer peripheral surface of the partition plate 32, the heating of the handle 33 can be suppressed by the partition plate 32.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, a screw hole is formed in the portion of the outer cover 4 adjacent to the recessed portion 41 instead of the insertion hole 42, and a longitudinal insertion hole is formed in the overhanging portion 334 of the handle 33 in the vertical direction instead of the screw hole 335. It is also possible to attach the outer cover 4 to the upper case 3 so as to be freely movable in the vertical direction by inserting the tip end of an attachment screw that is screwed into the screw hole into the insertion hole.

  In the above-described embodiment, the handle 33 has a two-member structure including the handle main body 331 and the back plate 332, but the overhang facing the radially inward portion of the portion of the outer cover 4 adjacent to the recessed portion 41. It is also possible to form the part integrally with the handle body and to omit the back plate.

  DESCRIPTION OF SYMBOLS 1 ... Rice cooker, 2 ... Lower case, 22 ... Burner, 3 ... Upper case, 32 ... Partition plate, 33 ... Handle, 334 ... Overhang part, 335 ... Screw hole, 4 ... Outer cover, 41 ... Recessed part, 42 ... insertion hole, 43 ... mounting screw.

Claims (4)

The upper case that supports the rice cooker inserted from above is placed on the lower case with the burner assembled. In a gas rice cooker that is adapted to be exhausted to the upper case with a cylindrical outer cover that surrounds the upper case with a gap in the radial direction,
The outer cover is mounted so as to be freely movable in the vertical direction with respect to the upper case. When the outer cover is lowered, the lower end of the outer cover is located below the lower end of the upper case, and when the outer cover is raised, the outer cover is A gas cooker characterized in that the lower end is located at a height higher than the lower end of the upper case.   A handle protruding outward in the radial direction from the outer cover is fixed to an upper portion of the upper case, and a concave notch for receiving the handle is formed at an upper end portion of the outer cover, and the handle is adjacent to the concave notch. An overhanging portion is provided opposite to the radially inward portion of the outer cover portion, and a screw hole is formed in one of the overhanging portion and the portion of the outer cover. The gas rice cooker according to claim 1, wherein an insertion hole is formed to be inserted with play in a direction.   The gas rice cooker according to claim 1, wherein an annular partition plate that bisects a gap between an upper portion of the upper case and the outer cover in a radial direction is fixed to an upper outer periphery of the upper case.   An annular partition plate that bisects the gap between the upper case upper portion and the outer cover in the radial direction is fixed to the upper outer periphery of the upper case, and the handle is provided on the outer peripheral surface of the partition plate. The gas cooker according to claim 2.

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