JP2018140174A - rice cooker - Google Patents

Abstract

An object of the present invention is to solve a technical problem of a pressure cooker, in which an outer lid is deformed by receiving pressure and a product structure is complicated. The rice cooker includes a pot body 1, a lid 2, and an inner pot 3 housed in the pot body 1. The lid 2 includes an outer lid and an inner lid 4, and the inner lid 4 and the inner pot 3 form a cooking chamber. The rice cooker further includes a lid lock mechanism, and the lid lock mechanism includes a holding unit and a driving unit. The holding portion is provided on the outer lid portion and can move up and down. The drive unit moves the holding unit to lock or unlock the inner pot 3 and the inner lid unit 4. There is a gap between the outer lid and the inner lid 4 so that the inner lid 4 can move up and down. The inner lid part 4 receives the pressure from the cooking chamber, presses the holding part, and moves upward. [Selection diagram] FIG.

Description

  The present invention relates to a pressure cooker, and more particularly to a rice cooker.

  A conventional rice cooker includes a lid and a pan body, and the lid body engages with the pan body to form a cooking chamber. During operation of the rice cooker, the pressure in the cooking chamber rises and transforms into a rice cooker. At this time, the deformation of the lid is particularly large. For this reason, in the existing technology, in order to improve safety, the structural strength of the lid is increased so that the lid can withstand pressure and resist deformation. In order to increase the structural strength of the lid, mainly, (1) increasing the thickness of the lining of the lid, and (2) increasing the number of members that receive pressure. As a method for increasing the number of members that receive pressure, there is one described in Patent Document 1. Patent Document 1 describes a configuration in which a reinforcing member is provided on the outer side of the lining, and a protruding portion that receives pressure is provided between the reinforcing member and the inner lid portion. The protrusion is positioned immediately below the reinforcing member and is strongly pressed against the reinforcing member or the inner lid. The inner lid receives the pressure in the sealed chamber and applies the received pressure to the reinforcing member via the protrusion. In the above-described structure, since the outer lid engages with the pan body, a cooking chamber that is intermittently decompressed is formed between the inner lid portion and the inner pan. When pressure begins to rise in the cooking chamber, pressure is applied to the outer lid and the pan body. Since the material of the outer lid and the pan body is resin, the outer lid and the pan body deform when subjected to pressure. Since the degree of deformation of the outer lid is particularly large, it is necessary to improve the strength of the outer lid by providing a metal reinforcing member on the outer lid. In this case, the structure of the lid is complicated, the number of members is increased, the difficulty of manufacturing and producing the product is increased, and the volume of the entire rice cooker is also increased.

China Utility Model Announcement No. 203195420

  The problem to be solved by the present invention is to overcome deficiencies in the prior art, prevent pressure in the cooking chamber from being applied to the outer lid, and simplify the structure of the lid.

  In order to solve the above-described problems, the following technical solutions are provided.

  According to one aspect of the present invention, a rice cooker comprising a pan body, a lid, and an inner pan housed in the pan body, the lid body comprising an outer lid portion and an inner lid portion, and an inner lid And the inner pot form a cooking chamber, the rice cooker further includes a lid locking mechanism, the lid locking mechanism includes a clamping part and a driving part, and the clamping part is provided on the outer lid part and can be moved up and down. Yes, the drive unit moves the clamping unit to lock or unlock the inner pot and the inner lid, and there is a gap between the outer lid and the inner lid that allows the inner lid to move up and down. The inner lid portion provides a rice cooker that receives pressure from the cooking chamber, presses the clamping portion, and moves upward.

  In the rice cooker described above, the outer lid portion is provided with a position restricting column, the sandwiching portion includes a clamper and a clamper holder coupled to each other, and the clamper holder has an attachment hole into which the position restricting column is inserted, The drive unit includes a drive member and a slide plate provided on the outer lid, and the drive member drives the inner plate by moving the clamper by driving the slide plate. You may be comprised so that an inner cover part may be locked or unlocked.

  In the rice cooker described above, a position restriction piece may be provided on the position restriction column, and an elastic member may be provided between the position restriction piece and the clamper holder.

  The rice cooker mentioned above WHEREIN: A part of position control piece may be comprised so that it may extend to the upper direction of a slide plate.

  In the rice cooker described above, the slide plate is provided with the first guide slot, the clamper holder is provided with the guide rod slidably engaged with the first guide slot, the attachment hole is a long hole, and the drive The member drives the slide plate so as to press the guide rod, and moves the mounting hole in a direction approaching the center of the outer lid part or away from the center of the outer lid part. May be configured to be locked or unlocked.

  In the above-described rice cooker, the drive member reciprocates the slide plate in the direction approaching the rotation axis side of the lid body and the pan body or the direction away from the rotation axis side, and the first guide slot includes the first inclined slot. The first inclined slot includes a first front end portion and a first rear end portion, and the first rear end portion is inclined so as to approach the rotating shaft side in a direction from the first front end portion toward the center of the outer lid portion. It may be configured as follows.

  In the rice cooker described above, the outer lid portion is provided with a ball valve, a steam port communicating with the cooking chamber, and a pressing member for driving the ball valve to close the steam port. Two guide slots are provided, and the pressing member is provided with an exhaust rod that is slidably engaged with the second guide slot. The slide plate rotates the lid so that the ball valve opens the steam port. Move toward the shaft side, press the exhaust rod, move the exhaust rod in a direction approaching the center of the outer lid, and the slide plate rotates the lid shaft so that the ball valve closes the steam port The exhaust rod may be configured to move in a direction away from the side, press the exhaust rod, and move the exhaust rod in a direction away from the center of the outer lid portion.

  In the rice cooker described above, the second guide slot includes a second inclined slot, the second inclined slot includes a second front end portion and a second rear end portion, and the second rear end portion extends from the second front end portion to the outer lid. You may comprise so that it may incline so that it may leave | separate from the rotating shaft side in the direction which goes to the center of a part.

  In the rice cooker described above, the first guide slot further includes a first linear slot that communicates with the first rear end portion and extends in a direction approaching the rotating shaft side, and the second guide slot includes the second rear slot. A second linear slot that communicates with the end portion and extends away from the rotating shaft side may be further provided.

  In the rice cooker described above, the driving member rotates the slide plate, the slide plate is provided with the first guide slot, the first guide slot is an arc-shaped slot, the front end of the first guide slot and the rotation center of the slide plate And the distance between the rear end of the first guide slot and the rotation center of the slide plate is R2, and R1 may be configured to be smaller than R2.

  The present invention provides beneficial effects as follows.

  A rice cooker according to one aspect of the present invention is a rice cooker including a pot body, a lid, and an inner pot housed in the pot body, the lid including an outer lid part and an inner lid part, The inner lid part and the inner pot form a cooking chamber, the rice cooker further includes a lid locking mechanism, the lid locking mechanism includes a clamping part and a driving part, and the clamping part is provided on the outer lid part and moves up and down. The drive unit can move the clamping unit to lock or unlock the inner pot and the inner lid, and the inner lid can move up and down between the outer lid and the inner lid. The inner lid portion is configured to receive pressure from the cooking chamber, press the clamping portion, and move upward. Compared with the prior art, in the rice cooker according to one aspect of the present invention, during operation, the sandwiching portion sandwiches the inner lid portion and the inner pan, and a complete pressure cooking chamber between the inner lid portion and the inner pan. Form. During cooking, the pressure generated in the cooking chamber is applied to the inner lid. When receiving the pressure, the inner lid portion moves upward in the gap. When the inner lid portion moves upward, the clamping portion is pushed by the inner lid portion and moved upward. That is, the pressure in the cooking chamber is applied to the sandwiching portion that can move up and down via the inner lid portion, but the pressure is not applied to the outer lid portion. Therefore, there is no need to provide an additional reinforcing member and other members attached to the reinforcing member, the structure is simplified, the difficulty of manufacturing and producing the product is reduced, and the volume of the entire rice cooker is also reduced. be able to. Moreover, since a clamping part clamps an inner cover part and an inner pot, when receiving pressure and moving upwards, it applies a part of pressure to the inner pot which is a metal member. Thereby, it can suppress that the outer shell of a pan main body receives a pressure, and can suppress a deformation | transformation of the outer shell of a pan main body.

  The outer lid portion is provided with a position restricting column, the clamping portion is provided with a clamper and a clamper holder coupled to each other, the clamper locks or unlocks the inner pot and the inner lid portion, and the clamper holder is provided with the position restricting column. Has a mounting hole to be inserted, and is slidably provided around the position regulating column. The drive unit includes a drive member and a slide plate provided on the outer lid, and the drive member drives the slide plate. The inner pan and the inner lid are locked or unlocked by moving the clamper. According to this configuration, since the clamper holder can be moved up and down along the position regulating column, it is possible to realize that the clamping portion moves up and down, simplify the structure, and facilitate the combination.

  The position restricting column is provided with a position restricting piece, and an elastic member is provided between the position restricting piece and the clamper holder. According to this configuration, the clamper holder compresses an elastic member such as a spring when the inner lid receives pressure in the cooking chamber and presses the clamping unit to move the clamping unit upward. When there is no pressure due to steam or the like in the cooking chamber, the compressed spring drives the clamper and the inner lid to move downward and return to the initial position so that the clamper can be locked or unlocked smoothly. A gap can be formed between the inner lid part and between the clamper and the edge of the inner pot.

  A part of the position regulating piece is configured to extend to above the slide plate. According to this configuration, the position restricting piece can restrict the position above the slide plate. Thereby, it can suppress that a slide plate deform | transforms and leaves | separates from a guide rod and an exhaust rod.

  The slide plate is provided with a first guide slot, the clamper holder is provided with a guide rod slidably engaged with the first guide slot, the mounting hole is a long hole, and the drive member is provided with a guide rod. Drive the slide plate to press, move the mounting hole in the direction approaching the center of the outer lid part or away from the center of the outer lid part, and lock or unlock the inner pan and inner lid part by the clamper It is configured as follows. According to this configuration, the lid of the rice cooker having a non-circular structure can be opened and closed, the structure can be simplified, and the operation can be facilitated. This configuration is suitable for inner pots having various non-circular structures.

  The drive member reciprocates the slide plate in a direction approaching or away from the rotational axis side of the lid body and the pan body, the first guide slot includes a first inclined slot, and the first inclined slot is A first front end portion and a first rear end portion are provided, and the first rear end portion is configured to be inclined so as to approach the rotating shaft side in a direction from the first front end portion toward the center of the outer lid portion. . According to this configuration, when the driving member moves the slide plate in a direction approaching the rotation axis side of the pan body, the first inclined slot is provided with the guide rod so that the clamper unlocks the inner lid portion and the inner pan. Is moved away from the center of the outer lid. When the driving member moves the slide plate in the direction away from the rotation axis side of the pan body, the first inclined slot has the guide rod at the center of the outer lid portion so that the clamper locks the inner lid portion and the inner pan portion. Move it closer. For this reason, operation is simple and easy.

  The outer lid portion is provided with a ball valve, a steam port communicating with the cooking chamber, a pressing member for driving the ball valve to close the steam port, and the slide plate is provided with a second guide slot. The pressing member is provided with an exhaust rod slidably connected to the second guide slot, and the slide plate moves toward the rotating shaft side of the lid so that the ball valve opens the steam port. Press the exhaust rod to move the exhaust rod closer to the center of the outer lid, and the slide plate moves away from the pivot axis of the lid so that the ball valve closes the steam port. The exhaust rod is pressed to move the exhaust rod away from the center of the outer lid portion. According to this structure, when a cover body is open | released, a ball valve can open | release a steam port, implement | achieve pressure reduction, and can suppress that a user is burned with a vapor | steam. When the lid is engaged with the pan body, the ball valve closes the steam port, realizes pressure cooking, and improves the food texture.

  The second guide slot includes a second inclined slot, the second inclined slot includes a second front end portion and a second rear end portion, and the second rear end portion is a direction from the second front end portion toward the center of the outer lid portion. It inclines so that it may leave | separate from the rotating shaft side. According to this configuration, it is possible to simplify the structure and facilitate processing.

  The first guide slot further includes a first linear slot that communicates with the first rear end portion and extends in a direction approaching the rotating shaft side, and the second guide slot communicates with the second rear end portion. A second linear slot extending in a direction away from the rotating shaft side is further provided. According to this configuration, in the process of opening the lid, first, the exhaust rod moves to the second rear end along the second inclined slot, and the steam port is opened. At this time, the guide rod moves to the first rear end portion of the first inclined slot along the first linear slot without being displaced in the radial direction. In a state where the inner lid portion and the inner pan are locked, the slide plate moves to the rotating shaft side, and the first inclined slot moves the guide rod away from the center of the outer lid portion. Thereby, the locking of the inner lid part and the inner pot is unlocked by the holding part. In this process, since the exhaust rod is not displaced in the radial direction, the steam port is opened and remains in the exhaust state. That is, after the steam port is opened and exhaust and decompression are performed for a predetermined time, the inner lid portion and the inner pan are unlocked. Before the clamper unlocks the inner lid portion and the inner pan, the exhaust and decompression are performed for a predetermined time, so that the pressure in the cooking chamber falls below a safe value. Even if the lid is opened at this time, it is possible to prevent the user from being burned by the steam and to ensure the safety of the user.

  Such features and advantages of the present invention are disclosed in detail in the following specific embodiments and drawings.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
Structural schematic diagram when the lid and the steam port are open in the first embodiment of the present invention AA line sectional view of FIG. Partial enlarged view of FIG. Schematic diagram of clamper holder structure Structure diagram of push element Structure diagram of slide plate In the first embodiment of the present invention, the structural schematic diagram when the lid is engaged and the steam port is opened BB sectional view of FIG. In the first embodiment of the present invention, the structural schematic diagram when the lid is engaged and the steam port is closed CC sectional view of FIG.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. The following examples are only preferred examples of the present invention and are not all embodiments. Based on the examples in the embodiment, all other examples obtained by a person skilled in the art without creative efforts are within the protection scope of the present invention.

  In the following detailed description, terms used to indicate a direction or positional relationship, for example, “top”, “bottom”, “inside”, “outside”, “top”, “bottom”, etc. The orientation or positional relationship shown in FIG. 5 is merely used to facilitate and simplify the description of the present invention, and the illustrated apparatus or component is oriented in a particular direction. It is not intended to be explicit or implied to form or operate in a particular direction and should not be understood as limiting the invention. Also, terms such as “first”, “second” are used for explanation only and should not be understood as indicating or implying the relative importance or number of technical features. Absent. Features defined as “first” and “second” expressly or implicitly include one or more such features.

Example 1
If FIG. 1-6 is referred, the rice cooker in the present Example 1 is a pressure type rice cooker, and is provided with the pan main body 1 and the cover body 2. As shown in FIG. One end of the pan lid 2 is rotatably attached to the pan body 1. An inner pot 3 is accommodated in the pot body 1. The lid body 2 includes an outer lid portion and an inner lid portion 4. The inner lid part 4 and the inner pot 3 form a cooking chamber. The outer lid portion includes an upper lid portion and a lining 5. The inner lid portion 4 is attached to the lining 5 so as to be movable up and down. A gap is provided between the inner lid 4 and the lining 5.

  The rice cooker according to the first embodiment further includes a lid lock mechanism. The lid lock mechanism is attached to the outer lid portion. More specifically, the lid lock mechanism includes a clamping unit and a driving unit. The clamping part is attached to the lining 5 so as to be movable up and down. The clamping unit includes a clamper 7 and a clamper holder 8. A slot 71 is provided at the lower end of the clamper 7 so as to be recessed in a direction away from the center of the outer lid portion. The upper end portion of the clamper 7 is coupled to the clamper holder 8. A mounting hole 81 is provided in the clamper holder 8. On the side of the lining 5 close to the outer lid portion, a position restricting column 51 formed to extend upward is provided. The position regulating column 51 is inserted into the attachment hole 81. When the drive unit is driven to move the clamping unit in a direction toward the center of the outer lid part, the clamper 7 moves in a direction toward the center of the outer lid part, and the edge of the inner lid part 4 and the inner pot 3 are moved. And the inner lid portion 4 and the inner pot 3 are locked. When the driving unit drives the clamping unit to move away from the center of the outer lid part, the clamper 7 moves away from the center of the outer lid part to move the edge of the inner lid part 4 and the inner pot. 3 is separated from the slot 71, and unlocking of the inner lid part 4 and the inner pot 3 is realized. Thereby, the cover body 2 comes to be opened. In order to realize attachment that can move up and down of the sandwiching portion, the height H1 of the slot 71 according to the present invention is larger than the total thickness H2 of the thickness of the inner lid portion 4 and the thickness of the inner pot 3. When the clamper 7 locks the inner lid portion 4 and the inner pan 3, there is a gap between the upper surface of the inner lid portion 4 and the upper surface of the slot 71, and the lower surface of the edge of the inner pan 3 and the lower surface of the slot 71 There is a gap between them. In order to increase the reliability of the engagement between the lid 2 and the pan body 1, one of the above-described clamping portions is provided on both the left and right sides of the lining 5 in the first embodiment. According to this configuration, the lid of the rice cooker having a non-circular structure can be opened and closed, the structure can be simplified, and the operation can be facilitated. This configuration is suitable for inner pots having various non-circular structures.

  In the first embodiment, the clamper 7 is made of a metal member and the clamper holder 8 is made of a resin member so that the lock strength and the manufacturing cost of the clamper 7 are balanced, and both of them are screws, rivets, adhesives, and injection molding. It may be combined by a fixing method such as. In another embodiment of the present invention, the clamper and the clamper holder may be configured as an integrated metal member. Further, the clamper and the clamper holder may be configured to fit a metal member in the resin member.

  During the operation of the rice cooker, a sealed cooking chamber is formed between the inner lid portion 4 and the inner pot 3. When the pressure generated in the cooking chamber is applied to the inner lid portion 4 and moves upward until the inner lid portion 4 is pressed against the clamper 7, the clamper 7 moves upward in the gap together with the inner lid portion 4. At this time, since there is a gap between the lower surface of the slot 71 and the lower surface of the edge portion of the inner pot 3, the clamper 7 is to maintain the locked state between the inner lid portion 4 and the inner pot 3, It moves upward relative to the edge of the inner pot 3. When the clamper 7 moves the clamper holder 8 upward, the mounting hole 81 slides upward with respect to the position restricting column 51. An elastic seal is provided between the inner pot 3 and the inner lid part 4 (the silicon sealing ring has a constant elastic deformation capability), and therefore the process of moving the inner lid part 4 and the clamper 7 upward. , The space between the inner pot 3 and the inner lid portion 4 is always maintained in a sealed state.

  When receiving pressure, the inner lid portion 4 in the first embodiment moves upward in the gap. When the inner lid portion 4 moves upward, the clamper 7 and the clamper holder 8 are pushed by the inner lid portion 4 and moved upward. That is, the pressure in the cooking chamber is applied to the sandwiching portion that can move up and down via the inner lid portion 4, but the pressure is not applied to the outer lid portion. Therefore, it is not necessary to provide an additional reinforcing member and other members attached to the reinforcing member, the number of members of the lid body is reduced, the structure is simplified, and the difficulty of manufacturing and producing the product is reduced. The volume of the entire rice cooker can be reduced. In addition, the clamper 7 sandwiches the inner lid portion 4 and the inner pot 3, and therefore applies a part of pressure to the inner pot 3 that is a metal member when moving upward due to the pressure. Thereby, it can suppress that the outer shell of the pan main body 1 receives a pressure, and can suppress the deformation | transformation of the outer shell of the pan main body 1.

  In the first embodiment, the position restriction column 51 is provided with a position restriction piece 52. An elastic member 53 is provided between the position restricting piece 52 and the clamper holder 8. The elastic member 53 may be a spring, a silicon member, or a rubber member. In the first embodiment, the elastic member 53 is a spring. The spring is attached around the position restricting column 51 and is sandwiched between the position restricting piece 52 and the clamper holder 8. When the lid body 2 is engaged with the pan pair 1, the sandwiching portion is pushed downward by the spring. As a result, a gap is provided between the slot 71 and the inner lid part 4, and a gap is also provided between the slot 71 and the inner pot 3, so that the slot 71 can smoothly move between the inner lid part 4 and the inner pot 3. Can be engaged. When there is pressure due to water vapor in the cooking chamber, the inner lid portion 4 receives the pressure and the clamping portion moves upward. Thereby, the clamper holder 8 compresses the spring. At this time, the outer lid portion receives only the elasticity of the spring and does not receive the pressure of the inner lid portion 4. When there is no water vapor pressure in the cooking chamber, the compressed spring moves the clamper 7 and the inner lid 4 downward so that the clamper 7 can be smoothly unlocked away from the inner pot 3 and the inner lid 4. To return to the initial position. Thereby, a clearance gap is formed between the slot 71 and the inner lid part 4 and between the slot 71 and the edge part of the inner pot 3.

  In the first embodiment, the drive unit includes a drive member 10 and a slide plate 9. In the first embodiment, the driving member 10 is a motor. The output shaft of the motor is connected to a gear. A rack 90 is provided on the slide plate 9. The length direction of the rack 90 coincides with the slide direction of the slide plate 9. When the gear of the motor meshes with the rack 90 and the motor is driven, the slide plate 9 reciprocates in a direction approaching the rotating shaft of the lid or away from the rotating shaft. The present invention is not limited to a transmission mechanism using a gear and a rack. For example, a transmission mechanism that transmits torque of a motor by a simple connection bar structure and converts it into a horizontal driving force to the slide plate 9 is provided. It may be used. In another embodiment of the present invention, an electromagnetic valve may be used as a driving member, and the slide plate 9 may be moved in a direction approaching the rotational axis or away from the rotational axis by the electromagnetic valve. Good.

  The slide plate 9 is provided with a first guide slot 91. The first guide slot 91 includes a first inclined slot 910. The first inclined slot 910 includes a first front end and a first rear end. The first front end is the upper end of the first inclined slot 910 in FIG. The first rear end is the lower end of the first inclined slot 910 in FIG. The first rear end portion is inclined so as to approach the rotation shaft in a direction from the first front end portion toward the center of the outer lid portion. The clamper holder 8 is provided with a guide rod 82. The first inclined slot 910 is slidably engaged with the guide rod 82. The mounting hole is a long hole. The length direction of the long hole coincides with the moving direction of the clamper 7. When the motor 10 is driven so as to move the slide plate 9 in the direction away from the rotation shaft side 21, the first inclined slot 910 moves the guide rod 82 along the first inclined slot 910 toward the center of the outer lid portion. Move to. At this time, the guide rod 82 moves the clamper 7 in a direction approaching the center of the outer lid portion. Thereby, the clamper 7 locks the inner lid part 4 and the inner pot 3. When the motor 10 is driven so as to move the slide plate 9 in a direction approaching the rotation shaft side 21, the first inclined slot 910 moves the guide rod 82 along the first inclined slot 910 away from the center of the outer lid portion. Move to. At this time, the guide rod 82 moves the clamper 7 in a direction away from the center of the outer lid. Thereby, the clamper 7 unlocks the inner lid part 4 and the inner pot 3. For this reason, operation is simple and easy.

  Moreover, the rice cooker in the present Example 1 is a pressure type rice cooker. In order to realize decompression or holding pressure of the cooking chamber when the lid 2 is opened and closed, the inner lid portion 4 in the first embodiment has a steam port 41, a ball valve 42, and a ball valve holder (not shown). ) And are further provided. A mounting chamber 6 is formed between the lining 5 and the inner lid portion 4. The ball valve 42 and the ball valve holder are disposed inside the mounting chamber 6. The ball valve holder is provided so as to restrict the rotation range of the ball valve 42 and prevent the ball valve 42 from being separated from the steam port 41. A pressing member 54 is provided on the lining 5. The steam port 41 communicates with the cooking chamber. The ball valve 42 is disposed on the steam port 41. The pressing member 54 is provided with a pressing rod 541 and an exhaust rod 542. The lining 5 is provided with a through hole. The pressing rod 541 extends into the attachment chamber 6 through the through hole. The pressing member 54 presses the ball valve 42 and moves it in a direction away from the center of the outer lid part or a direction approaching the center of the outer lid part so as to open or close the steam port 41.

  More specifically, the slide plate 9 is provided with a second guide slot 92. The second guide slot 92 includes a second inclined slot 920. The second inclined slot 920 includes a second front end and a second rear end. The second front end is the lower end of the second inclined slot 920 in FIG. The second rear end is the upper end of the second inclined slot 920 in FIG. The second rear end portion is inclined so as to be separated from the rotation shaft side 21 in a direction from the second front end portion toward the center of the outer lid portion. The exhaust rod 542 is slidably engaged with the second inclined slot 920. When the motor 10 is driven to move the slide plate 9 in a direction approaching the rotation shaft side 21, the second inclined slot 920 moves the exhaust rod 542 in a direction approaching the center of the outer lid portion. Thereby, the pressing rod 541 presses the ball valve 42 and opens the steam port 41. When the motor 10 drives the slide plate 9 to move away from the rotation shaft side 21, the second inclined slot 920 moves the exhaust rod 542 away from the center of the outer lid portion. At this time, the pressing force applied to the ball valve 42 by the pressing rod 541 disappears, and the ball valve 42 returns to the original position and closes the steam port 41. Therefore, when the lid 2 is opened, the ball valve 42 opens the steam port 41 to reduce the pressure, thereby preventing the user from being burned by the steam. When the lid body 2 is engaged with the inner pot 3, the ball valve 42 closes the steam port 41 to hold the pressure, realizes pressure cooking, and improves the food texture.

  Preferably, the first guide slot 91 in the first embodiment further includes a first straight slot 911. The first linear slot 911 communicates with the first rear end portion of the first inclined slot 910 and extends in a direction approaching the rotation shaft side 21. The first guide slot 92 further includes a second linear slot 921. The second linear slot 921 communicates with the second rear end portion of the second inclined slot 920 and extends in a direction away from the rotation shaft side 21. The length direction of the first linear slot 911 and the length direction of the second linear slot 921 coincide with the length direction of the rack 90.

  FIG. 1 or FIG. 2 shows a state where the clamper 7 unlocks the inner lid portion 4 and the inner pot 3. The ball valve 42 opens the steam port 41, and then the motor 10 is driven to move the slide plate 9 in the direction away from the rotating shaft side 21. Thus, the first inclined slot 910 moves the guide rod 82 along the first inclined slot 910 in a direction approaching the center of the outer lid portion. When the first rear end of the first inclined slot 910 is engaged with the guide rod 82, the rear end of the second inclined slot 920 is engaged with the exhaust rod 542. FIG. 7 or FIG. 8 shows a state in which the clamper 7 locks the inner lid portion 4 and the inner pot 3. At this time, the exhaust rod 542 is not displaced in the radial direction, and the position of the pressing rod 541 is not changed. Further, the steam port 41 remains open, and the slide plate 9 continues to be driven so as to move in a direction away from the rotating shaft side 21. At this time, the second inclined slot 920 moves the exhaust rod 542 along the second inclined slot 920 in a direction away from the center of the outer lid portion. When the rear end portion of the first linear slot 911 is engaged with the guide rod 82, the front end portion of the second inclined slot 920 is engaged with the exhaust rod 542. As shown in FIG. 9 or 10, when the guide rod 82 is not displaced in the radial direction, the clamper 7 maintains the locked state of the inner lid portion 4 and the inner pot 3. At this time, the pressing rod 541 moves in a direction away from the center of the outer lid portion, the pressing force of the ball valve 42 is lost, and the steam port 41 is closed. Thereby, the rice cooker enters the operation mode and can cook.

  When the rice cooker finishes cooking, the motor 10 is driven to move the slide plate 9 in a direction approaching the rotating shaft side 21. At this time, the second inclined slot 920 moves the exhaust rod 542 in a direction approaching the center of the outer lid portion. As shown in FIG. 7 or FIG. 8, when the rear end portion of the second inclined slot 920 is engaged with the exhaust rod 542, the pressing rod 541 presses the ball valve 42 away from the steam port 41. . Thereby, the steam port 41 is opened, the air in the cooking chamber is exhausted, and the pressure in the cooking chamber is reduced. In this process, the guide rod 82 is not displaced in the radial direction, and the clamper 7 maintains the locked state of the inner lid portion 4 and the inner pot 3. Further, the motor 10 continues to be driven so as to move the slide plate 9 in a direction approaching the rotation shaft side 21. At this time, the first inclined slot 910 moves the guide rod 82 in a direction away from the center of the outer lid portion. As shown in FIG. 1 or 2, when the front end portion of the first inclined slot 910 is engaged with the guide rod 82, the clamper 7 unlocks the inner lid portion 4 and the inner pan 3. In this process, the exhaust rod 542 is not displaced in the radial direction, and the steam port 41 is opened and the air in the cooking chamber remains exhausted. In the process of opening the lid 2, first, the steam port 41 is opened, and after exhausting and depressurizing for a predetermined time, the clamper 7 unlocks the inner lid 4 and the inner pot 3. . Before the clamper 7 unlocks the inner lid portion 4 and the inner pot 3, exhaust and decompression are performed for a predetermined time, so that the pressure in the cooking chamber falls below a safe value. Even if the lid is opened at this time, it is possible to prevent the user from being burned by the steam and to ensure the safety of the user.

  As shown in FIG. 2, in the process of reciprocating the slide plate 9, both sides of the slide plate 9 are deformed by receiving a non-uniform force and the first guide slot 91 is separated from the guide rod 82, or the first In order to prevent the two guide slots 92 from separating from the exhaust rod 542, a part of the position restricting piece 52 in this embodiment extends to above the slide plate 9. That is, the projection in the vertical direction partially overlaps with the position restricting piece 52 and the slide plate 9. Therefore, the position restricting piece 52 can restrict the position above the slide plate 9.

  In another embodiment of the present invention, the following configuration may be adopted based on the driving principle of the first embodiment. When the drive member drives the slide plate to slide toward the rotation shaft side, the clamper locks the inner lid portion and the inner pot. Further, when the drive member drives the slide plate to slide in the direction away from the rotation shaft side, the clamper unlocks the lock between the inner lid portion and the inner pot. This configuration can be realized simply by changing the tilt direction of the first tilt slot and the second tilt slot, and those skilled in the art can easily understand the configuration based on their own knowledge. Not described in detail.

(Example 2)
The drive member in the second embodiment is configured to drive the slide plate to rotate right or left in order to drive the clamper to realize locking or unlocking of the inner lid portion and the inner pot. Yes. More specifically, the drive member is a motor or a rotary lever. The first guide slot is an arcuate slot. The distance between the front end portion of the first guide slot and the rotation center of the slide plate is R1. The distance between the rear end portion of the first guide slot and the rotation center of the slide plate is R2. R1 is smaller than R2. When the guide rod is positioned at the front end of the first guide slot, the clamper locks the inner lid and the inner pot. When the slide plate is rotated via the motor or the rotation lever, the rear end portion of the first guide slot is rotated in the direction toward the guide rod. At this time, the guide rod is displaced in a direction away from the center of the outer lid portion by the first guide slot, and the clamper unlocks the inner lid portion and the inner pot.

  Preferably, the second guide slot is also an arcuate slot. The distance between the front end portion of the second guide slot and the rotation center of the slide plate is R3. The distance between the rear end of the second guide slot and the rotation center of the slide plate is R4. R4 is smaller than R3. The front end portion of the first guide slot corresponds to the front end portion of the second guide slot. The rear end portion of the first guide slot corresponds to the rear end portion of the second guide slot. When the guide rod is positioned at the front end of the first guide slot, the clamper locks the inner lid and the inner pot. At this time, the exhaust rod is positioned at the front end of the second guide slot, and the steam port is closed. When the slide plate is rotated via the motor or the rotation lever, the rear end portion of the first guide slot is rotated in the direction toward the guide rod. At this time, the rear end portion of the second guide slot moves toward the exhaust rod. The exhaust rod is displaced toward the center of the outer lid portion by the second guide slot, the ball valve opens the steam port, and the clamper unlocks the inner lid portion and the inner pan. When the slide plate is rotated in the reverse direction, the clamper locks the inner lid portion and the inner pot, and the ball valve closes the steam port.

  The above is only a specific embodiment of the present invention, and the protection scope of the present invention is not limited to this. Although the present invention includes the contents described above in the drawings and the specific embodiments, the present invention is not limited to those contents. Modifications that do not depart from the function and structural principles of the invention are within the scope of the claims.

Claims (10)

A rice cooker comprising a pot body, a lid, and an inner pot stored in the pot body,
The lid includes an outer lid and an inner lid,
The inner lid part and the inner pot form a cooking chamber,
The rice cooker further includes a lid lock mechanism,
The lid lock mechanism includes a clamping unit and a driving unit,
The clamping part is provided on the outer lid part and is movable up and down,
The drive unit moves the clamping unit to lock or unlock the inner pot and the inner lid unit,
Between the outer lid part and the inner lid part, there is a gap in which the inner lid part can move up and down,
The said inner cover part receives the pressure from the said cooking chamber, presses the said clamping part, and is a rice cooker which moves upwards. The outer lid portion is provided with a position regulating column,
The clamping unit includes a clamper and a clamper holder coupled to each other,
The clamper holder has a mounting hole into which the position restriction column is inserted, and is slidably provided around the position restriction column.
The drive unit includes a drive member and a slide plate provided on the outer lid,
2. The rice cooker according to claim 1, wherein the driving member locks or unlocks the inner pot and the inner lid portion by driving the slide plate and moving the clamper. 3. The position restriction pillar is provided with a position restriction piece,
An elastic member is provided between the position restricting piece and the clamper holder.
The rice cooker according to claim 2.   The rice cooker according to claim 3, wherein a part of the position restricting piece extends to above the slide plate. The slide plate is provided with a first guide slot,
The clamper holder is provided with a guide rod slidably engaged with the first guide slot,
The mounting hole is a long hole,
The driving member drives the slide plate so as to press the guide rod, and moves the mounting hole in a direction approaching the center of the outer lid part or in a direction away from the center of the outer lid part. The rice cooker according to claim 2, wherein the inner pot and the inner lid are locked or unlocked. The drive member reciprocates the slide plate in a direction approaching the rotation axis side of the lid body and the pan body or in a direction away from the rotation axis side,
The first guide slot includes a first inclined slot;
The first inclined slot includes a first front end and a first rear end,
The rice cooker according to claim 5, wherein the first rear end portion is inclined so as to approach the rotating shaft side in a direction from the first front end portion toward the center of the outer lid portion. The outer lid portion is provided with a ball valve, a steam port communicating with the cooking chamber, and a pressing member for driving the ball valve to close the steam port,
The slide plate is provided with a second guide slot,
The pressing member is provided with an exhaust rod that is slidably engaged with the second guide slot,
The slide plate moves toward the rotating shaft side of the lid so that the ball valve opens the steam port, presses the exhaust rod, and the exhaust rod is centered on the outer lid. Move it closer,
The slide plate moves in a direction away from the rotating shaft side of the lid so that the ball valve closes the steam port, presses the exhaust rod, and moves the exhaust rod to the center of the outer lid portion. The rice cooker according to claim 6, wherein the rice cooker is moved in a direction away from the rice cooker. The second guide slot comprises a second inclined slot;
The second inclined slot includes a second front end and a second rear end,
The rice cooker according to claim 7, wherein the second rear end portion is inclined so as to be separated from the rotation shaft side in a direction from the second front end portion toward the center of the outer lid portion. The first guide slot further includes a first linear slot that communicates with the first rear end portion and extends in a direction approaching the rotating shaft side,
The second guide slot further includes a second linear slot that communicates with the second rear end portion and extends in a direction away from the rotating shaft side.
The rice cooker according to claim 8. The drive member rotates the slide plate,
The slide plate is provided with a first guide slot,
The first guide slot is an arcuate slot;
The distance between the front end of the first guide slot and the rotation center of the slide plate is R1,
The rice cooker according to claim 2, wherein a distance between a rear end portion of the first guide slot and a rotation center of the slide plate is R2, and R1 is smaller than R2.

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