JP2005152118A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent deformation of a lid body by simply and surely reinforcing it. <P>SOLUTION: This rice cooker is provided with a rice cooker body 11 detachably storing a cooking pot 10, and a lid body 18 openably connected to the rice cooker body 11 with a hinge; and is disposed with a reinforcing member 32 horizontally extending across the approximately whole width of the left/right of a front end 26 in the front end part opposed to a hinge connection part 21 in the lid body 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rice cooker, and more particularly to the structure of a lid for a rice cooker.

  Prior art document information related to the rice cooker of the present invention includes the following.

JP-A-9-103358

  The rice cooker of this patent document 1 is provided with the rice cooker main body which accommodates rice cooker so that attachment or detachment is possible, and the cover body attached to this rice cooker main body so that opening and closing is possible. The lid is formed by assembling an upper plate and a lower plate, and a reinforcing plate extending over substantially the entire length of the space is disposed between the lid and the lid in order to prevent the lid from being deformed by heat.

  However, in the rice cooker, it is necessary to dispose at least a steam exhaust path in the lid, and depending on the type, it is necessary to dispose a pressure input mechanism, a liquid crystal panel, an operation panel, etc. large. Therefore, there exists a problem that it cannot be set as the structure which can acquire the reinforcement effect to the maximum.

  Therefore, an object of the present invention is to provide a rice cooker that can be easily and reliably reinforced and can reliably prevent deformation of the lid.

  In order to solve the above problems, a rice cooker according to the present invention includes a rice cooker body that detachably accommodates a rice cooker and a lid body that is hingedly connected to the rice cooker body so as to be opened and closed. A reinforcing member extending in the horizontal direction is provided on the front end portion of the body opposite to the hinge connection portion, extending substantially across the entire width of the front end portion.

  In this rice cooker, the reinforcing member is preferably disposed on the outer surface or the inner surface of the front end portion of the lid.

  In addition, an operation member for opening the lid from the rice cooker main body and a lock mechanism interlocking with the operation member are provided at a front portion of the lid, and the lock mechanism is front and rear with respect to the lid. The lock member is provided so as to be slidable in the direction and formed with a lock portion that is urged to a position protruding from the front end portion by the urging means. It is preferable to provide an insertion hole through which it can be advanced and retracted.

  In the rice cooker of this invention, since the reinforcement member is arrange | positioned so that it may extend over the substantially full width of the front-end part of a cover body, the maximum reinforcement effect can be acquired. Further, since the reinforcing member is disposed on the outer surface or the inner surface at the front end portion of the lid body, the size of the reinforcing member is relatively small and can be reliably applied.

  Further, a locking mechanism for maintaining the lid closed with respect to the rice cooker body is disposed at the front end of the lid, and this locking mechanism is configured by a locking member that can slide in the front-rear direction. By providing the reinforcing member with the insertion hole of the lock portion that can be advanced and retracted in the locking member, the reinforcing member can be applied reliably and the reinforcing effect can be obtained with certainty.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a rice cooker according to an embodiment of the present invention. This rice cooker includes a rice cooker 10, a rice cooker body 11 that detachably accommodates the rice cooker 10, and a lid 18 that is rotatably attached to the rice cooker body 11. An inner lid 75 is detachably attached to the inner surface.

  The rice cooking pot 10 is a strong material that is electromagnetically heated by an eddy current generated when energizing a high-frequency current to the induction heating coil that is the heating means of the present embodiment on the outer surface of a pot base material made of aluminum or the like having a high thermal conductivity. A magnetic material is coated or bonded.

  The rice cooker main body 11 includes a protective frame 12 made of a non-conductive material that accommodates the rice cooker 10 inside a body having a bottomed cylindrical shape. Between these bodies and the protective frame 12, an induction heating coil, which is a heating means (not shown), a temperature sensor for a rice cooker, and a control board on which a microcomputer is mounted are disposed.

  As shown in FIG. 3, a hinge receiving portion 13 for attaching the lid 18 so as to be openable and closable is provided on the upper rear side of the rice cooker body 11 (upper right side in FIG. 1). The hinge receiving portion 13 is provided with a metal hinge fitting 14 having a pair of bearing portions 14b protruding from the upper end of a substantially L-shaped bracket portion 14a. The hinge bracket 14 is provided with a metal shaft 22 penetrating the lid 18 so that the hinge receiving portion 13 is deformed due to heat, or rattling occurs due to wear caused by use. Is preventing.

  In addition, the rice cooker body 11 is provided with an operation substrate 15 having an operation unit 15a and a liquid crystal display unit 15b on the upper surface of the front end which is the front surface, and a cover corresponding to the liquid crystal display unit 15b on the outside. 16 is disposed. Further, the back of the arrangement portion of the operation substrate 15, that is, the surface facing the front end portion 26 of the lid 18 described later, is formed with a groove recessed inward in the vertical direction, and a lock member of the lock mechanism described later. A locked portion 17 that is locked by a lock portion 69 formed in 67 is provided.

  The lid 18 is attached to the rice cooker main body 11 so as to be openable and closable, and closes the opening of the rice cooker main body 11. The upper plate 19 and the lower plate attached integrally to the upper plate 19. 24 and an inner lid 75 that is detachably attached to the bottom surface of the lower plate 24 and seals the opening of the rice cooker 10. Inside the lid body 18, a lid temperature sensor and a lid heater (not shown) are arranged as in the prior art. In the present embodiment, a reinforcing member 32 is disposed at the front end portion 26 of the lower plate 24 opposite to the hinge connection portion 21.

  The upper plate 19 is provided with an exhaust port 20 for exhausting steam generated during rice cooking to the outside. In addition, on the back of the upper plate 19, there is provided a hinge connection portion 21 for being pivotally attached to the hinge receiving portion 13 of the rice cooker body 11. Then, a hinge spring 23 which is a biasing means for the lid is disposed on the shaft 22 penetrating the hinge fitting 14, and one end of the hinge spring 23 biases the upper plate 19 upward. The entire lid 18 is configured to be biased in the opening direction.

  As shown in FIGS. 1, 3, and 4, the lower plate 24 includes a substrate portion 25 that extends in a substantially horizontal direction, and a front end portion 26 that extends in the vertical direction at the front end thereof. The substrate portion 25 is provided with an opening 27 corresponding to the exhaust port 20 of the upper plate 19, an upper cylinder portion 28 protruding upward from the edge of the opening 27, and surrounding the opening 27. A lower cylindrical portion 29 that is opened larger than the lower surface of the substrate portion 25 is projected. These cylinder portions 28 and 29 constitute an exhaust path for exhausting steam generated during rice cooking. The upper cylinder portion 28 is provided with a seal member (not shown) for sealing between the upper plate 19. Established. A metal heater cover 30 is disposed at the lower end opening of the lower cylinder portion 29, and a lid heater is disposed on the upper surface of the heater cover 30.

  Here, the lid heater and the lid temperature sensor are electrically connected by a lead wire wired from the rice cooker body 11 through the hinge connection portion 21. The lead wire wired from the rice cooker body 11 and the lead wire connected to the lid heater and the lid temperature sensor are connected by a connector, and the arrangement portion 31 of this connector is connected to the lower plate 24. It is provided at the highest position in the substrate portion 25, that is, at the base portion of the upper tube portion 28.

  The reinforcing member 32 is for preventing the resin lid 18 from being deformed by heat at the time of rice cooking, and extends in the horizontal direction over the substantially entire width of the front end portion 26 of the lower plate 24 over substantially the left and right. It is made of metal arranged as described above. The reinforcing member 32 includes a vertical portion 32 a that covers the entire front end portion 26 of the lower plate 24 and a horizontal portion 32 b that covers a lower portion of the front end of the lower plate 24. The horizontal portion 32 b is screwed to the lower plate 24. It is fixed so that it cannot be detached by stopping. Further, a protruding portion 63 of a slide member 56 and a lock portion 69 of a lock member 67, which will be described later, are inserted into the vertical portion 32a of the reinforcing member 32 so as to be able to advance and retreat, and an insertion formed at the front end portion 26 of the lower plate 24. Insertion holes 33a and 33b corresponding to the holes 26a and 26b are provided.

  The lid 18 is provided with an opening operation member 34 at the front end thereof and a lock mechanism interlocked with the operation member 34.

  The operation member 34 is rotatably attached to a bearing portion 35 provided at the front portion of the lower plate 24, and is provided in a substantially semicircular shape provided so as to extend rearward from the center of the front edge of the upper plate 19. It is exposed from the notch 36 and is substantially flush with the upper surface of the upper plate 19. Specifically, as shown in FIGS. 4 to 6, the operation member 34 includes an operation portion 37 having a shape corresponding to the notch 36 for placement, and the bearings are provided on both sides of the front portion of the operation portion 37. A shaft portion 38 attached to the portion 35 is projected. In addition, an attachment portion 39 for attaching an operation member urging means for urging the region opposite to the shaft portion 38 of the operation member 34 upward is provided on the back portion of the one shaft portion 38. Further, at the rear end of the operation unit 37, a pair of operation units 43 for moving a lock member 67 described later is provided to project downward.

  The mounting portion 39 is provided with a locking groove 40 for locking the operating member biasing means on the back thereof. The biasing means of the present embodiment includes a coiled spring body 41a that is externally fitted so as to be substantially coaxial with the shaft center of the shaft portion 38, and a biasing projection that projects from both ends of the spring body 41a. A kick spring 41 composed of urging portions 41b and 41c is used. The first urging portion 41 b includes a hook portion bent in a semicircular shape that is locked so as to be hooked in the locking groove 40, and urges the operation portion 37 outward. The second urging portion 41 c is fixed by being inserted into an attachment hole 42 provided at a boundary portion between the substrate portion 25 and the front end portion 26 and urges the front end portion 26 outward.

  The operating portion 43 has a triangular shape with a rear end 43a protruding slightly rearward from the rear end edge of the operation portion 37 and an inclined portion 43b inclined upward in the rear side. The operating portion 43 has the rear end 43a abutted against the inner surface of the upper plate 19 by the urging force of the kick spring 41, maintains the state in which the upper surface of the upper plate 19 and the operation portion 37 are flush with each other, and is detached. It is configured to prevent this. Further, the inclined portion 43b slides a lock member 67, which will be described later, backward (rightward in FIG. 1).

  The lock mechanism is formed on a slide member 56 disposed on a lock mechanism disposition portion 44 formed on the front portion of the lower plate 24, a lock member 67, and an inner lid 75 removably disposed. Part 84.

  The lock mechanism placement portion 44 of the lower plate 24 includes a mounting recess 45 in which the slide member 56 is slidably mounted. In this mounting recess 45, three holding ribs 46 are provided so as to extend in the forward / backward direction (front-rear direction) in order to prevent the slide operation from being lowered due to the surface contact of the slide member 56. . In addition, a recessed portion 47 into which the operating portion 43 of the operation member 34 enters is provided in the mounting recess 45. Further, a through hole 48 is provided in the front portion of the mounting recess 45 to allow a locking portion 61 of a slide member 56 described later to pass therethrough. Guide plate portions 49 that guide both side portions of the slide member 56 are provided on both side portions of the through hole 48. Further, a stopper portion 50 that suppresses the forward sliding of the slide member 56 is provided at the rear end edge of the through hole 48. Furthermore, on both sides of the rear side of the mounting recess 45, there are provided mounting portions 51 having grooves for mounting and locking the slide member biasing means for biasing the slide member 56 to the retracted position.

  Further, the lock mechanism disposing portion 44 constitutes a mounting portion 52 in which the lock member 67 is slidably disposed on the upper side of the mounting recess 45, and a plurality of ribs 53 that form a lattice form from both sides thereof are vertically and horizontally. It is provided in a predetermined arrangement. The rib 53 is provided with a projecting portion 54 having a substantially inverted T shape that guides both side edges of the lock member 67. The mounting portion 52 is provided with two holding ribs 55 extending in the forward / backward direction (front-rear direction) in order to prevent the sliding operation from being lowered due to the surface contact of the lock member 67. Yes.

  The slide member 56 is slidably disposed in the mounting recess 45, and a slide member main body 57 placed on the holding rib 46 and a latch provided at the tip of the slide member main body 57. Part 61.

  The slide member main body 57 is provided with a notch 58 at a position corresponding to the recess 47 at the advanced position. In addition, a stopper portion 59 is provided on the rear side of the cutout portion 58 so as to suppress the backward sliding of the lock member 67 described later. Further, a substantially inverted L-shaped mounting portion 60 for attaching a slide member biasing means for biasing the slide member 56 to the retracted position with respect to the lid 18 projects upward at the rear portion of the stopper. It is installed.

  The locking portion 61 has a substantially inverted L shape that hangs down from the through hole 48 and penetrates downward from the substrate portion 25 in the lower plate 24. The locking portion 61 is formed so as to pivot upward from the front end of the slide member main body 57, and a role of a stopper that stops the advancement of the slide member 56 when the step formed thereby contacts the stopper portion 50. Make. Further, in the locking portion 61, a lower end that penetrates the through hole 48 is provided with a locking claw portion 62 that protrudes rearward and detachably locks the inner lid 75, and protrudes forward and lower plate 24. The front end portion 26 and the reinforcing member 32 are provided with a protruding portion 63 that is inserted into insertion holes 26 a and 33 a. Further, the engaging portion 61 is provided with a mounting groove 64 for disposing a locking member urging means, which will be described later, so as to extend in the forward / backward direction, and is inserted into the mounting groove 71 of the locking member 67 at its rear end. In addition, an insertion portion 65 for attaching one end of the urging means is provided. The insertion portion 65 is provided with a + -shaped positioning protrusion that matches the inner diameter of the coil spring 72 that is a biasing means.

  Here, slide member biasing means (first biasing means) for biasing the slide member 56 to the retracted position includes a ring-shaped main body 66a that is externally fitted to the mounting portion 60, and the main body. A hook spring 66 is used which includes a pair of fixing portions 66b which protrude in a substantially V shape from both ends of 66a and are fixed to the mounting portion 51.

  The lock member 67 is slidable with the slide of the slide member 56 and is slidably disposed with respect to the slide member 56. In other words, the lock member 67 is slidably attached to the slide member 56 so that when the slide member 56 slides against the urging force of the hook spring 66, the lock member 67 is driven by the slide member 56. It slides with respect to the lid 18.

  Specifically, the lock member 67 includes a base that is wider than the slide member 56. The lock member 67 has an abutting portion 68 projecting upward at the tip thereof so as to abut against the front end portion 26 of the lower plate 24. A pair of sliding members 56 projecting from the front end portion 26 and the insertion holes 26b, 33b of the reinforcing member 32 and locked to the locked portion 17 of the rice cooker body 11 on both sides of the contact portion 68. The lock portion 69 is projected. In addition, the lock member 67 is provided with a bulging portion 70 for fitting the upper portion of the locking portion 61 of the slide member 56, and a mounting groove 71 extending in the forward / backward direction is provided in the bulging portion 70. Yes. At the center of the contact portion 68 that is the front end of the mounting groove 71, a + -shaped positioning projection that matches the inner diameter of the coil spring 72 that is a biasing means for the lock member (second biasing means) is provided. It has been. Then, by disposing the coil spring 72 between the contact portion 68 and the insertion portion 65 so as to be positioned in the mounting grooves 64 and 71, the lock member 67 is brought into the advanced position with respect to the slide member 56. It is configured to be energized.

  Further, in the lock member 67, on the rear side of the bulging portion 70, the slide member 56 is in the advanced state, and corresponds to the recessed portion 47 of the lock mechanism disposition portion 44, and the operation portion 43 of the operation member 34. A corresponding slide hole 73 is provided. Further, guide pieces 74 are provided on both sides of the rear end of the lock member 67 to be inserted below the guide portion 54 of the lock mechanism arrangement portion 44.

  The inner lid 75 includes a metal inner lid body 76, a seal member 78, and a resin frame 81.

  The inner lid body 76 serves as a heat radiating plate, and a plurality of discharge ports (not shown) communicating with the inside of the rice cooker 10 are provided at positions corresponding to the exhaust path. Further, on the outer peripheral edge of the inner lid main body 76, an attachment portion 77 that is folded back into a substantially inverted J-shaped cross section for attaching the resin frame 81 is provided.

  The seal member 78 is provided with an attached portion 80 located in the attachment portion 77 of the inner lid main body 76 on an upper portion of an annular seal piece 79 that is in close contact with the opening of the rice cooker 10.

  The resin frame 81 is an annular member that can be mounted in the mounting portion 77 of the inner lid main body 76, and the mounting portion 80 of the sealing member 78 is sandwiched between the mounting portion 77 and the sealing member 78. 78 is attached to the inner lid body 76 so as not to be detached. A positioning portion 83 corresponding to a positioning recess 82 formed in the lower plate 24 protrudes from the resin frame 81 on the rear side corresponding to the hinge connection portion 21 of the lid 18. Further, the slide member 56 is advanced against the urging force of the hook spring 66 on the front side corresponding to the locking portion 61 of the slide member 56 constituting the lock mechanism, and the slide member 56 is locked. A receiving portion 84 that is locked to the portion 61 is provided. The receiving portion 84 is formed with a claw that engages with the locking claw portion 62 of the locking portion 61 of the slide member 56.

  Next, the operation of the lock mechanism will be specifically described.

  First, in a state where the inner lid 75 is not attached to the lid body 18, as shown in FIGS. 7A and 7B, the receiving portion 84 does not engage with the locking portion 61. Is retracted by the urging force of the hook spring 66. As a result, the lock member 67 is driven and retracted with respect to the lid body 18, and the lock portion 69 formed on the lock member 67 is immersed in the lid body 18.

  Next, when the inner lid 75 is attached to the lid body 18, as shown in FIGS. 6A and 6B, first, the receiving portion 84 comes into contact with the locking portion 61 and is pressed in this state. Thus, the slide member 56 is advanced forward against the urging force of the hook spring 66. When the inner lid 75 is completely attached, the receiving portion 84 of the inner lid 75 engages with the locking portion 61 of the slide member 56. Further, the protruding portion 63 of the slide member 56 is inserted into and engaged with the front end portion 26 of the lower plate 24 and the insertion holes 26a and 33a of the reinforcing member 32. As a result, the slide member 56 maintains the advanced state against the urging force of the hook spring 66. Further, as the slide member 56 advances, the lock member 67 follows and advances relative to the lid 18. As a result, the lock portion 69 of the lock member 67 passes through the front end portion 26 of the lower plate 24 and the insertion holes 26b, 33b of the reinforcing member 32, and the tip protrudes from the front end portion 26 and the reinforcing member 32. The lockable portion 17 of the main body 11 can be locked.

  Next, when the lid 18 that closes the rice cooker body 11 is opened, the operation portion 37 of the operation member 34 is pressed downward as shown in FIGS. Then, the operation part 43 of the operation member 34 comes into contact with the rear end edge of the slide hole 73 of the lock member 67. When further pressing is performed in this state, the sliding hole 73 is pressed backward by the inclined portion 43 b of the operating portion 43 against the urging force of the coil spring 72, and the coil spring 72 is contracted and locked against the slide member 56. The member 67 is slid backward. The retracted state of the lock member 67 is maintained by the operation force of the operation member 34 by the user. Thereby, the lock part 69 of the lock member 67 is immersed in the lid 18, the lock with the locked part 17 is released, and the lid 18 is opened to the rice cooker body 11 by the biasing force of the hinge spring 23. The

  In addition, in the state which obstruct | occludes the cover body 18 with which the inner cover 75 was mounted | worn with respect to the rice cooker main body 11, the lock part 69 of the lock member 67 protruded from the reinforcement member 32 is the upper side of the to-be-locked part 17 in the rice cooker main body 11. Abut against the edge. In this state, when the lid 18 is further pressed downward, the lock member 67 slides backward with respect to the slide member 56 against the biasing force of the coil spring 72 by the inclined portion of the lower end of the lock portion 69. Then, the lock member 67 slides forward with respect to the slide member 56 by the biasing force of the coil spring 72 in a completely closed state, and the lock portion 69 advances from the front end portion 26 to lock the locked portion 17. Maintain occlusion.

  Moreover, if a user performs rice cooking operation | movement in this obstruction | occlusion state, the resin-made cover body 18 may deform | transform with the heat | fever generate | occur | produced at the time of rice cooking like the past. However, since the reinforcing member 32 is disposed on the outer surface of the front end portion 26 so as to extend over substantially the entire width of the lid 18 of the rice cooker of the present embodiment, the maximum reinforcing effect can be obtained, and the lid It is possible to reliably prevent the body 18 from being deformed. In addition, the reinforcing member 32 can be reliably applied to the outer surface of the front end portion 26 of the lid body 18 with relatively few dimensional restrictions. In other words, depending on the type of rice cooker, it is necessary to dispose a pressure injection mechanism, a liquid crystal panel, an operation panel, and the like inside the lid 18. Is possible.

  Further, a lock mechanism for maintaining the lid 18 in a closed state with respect to the rice cooker body 11 is disposed at the front end of the lid 18. A lock member that can slide the lock mechanism in the front-rear direction. 67, and the reinforcing member 32 is provided with the insertion hole 33 of the lock portion 69 that can be advanced and retracted in the lock member 67. Therefore, the reinforcing member 32 can be reliably applied without causing any inconvenience.

  In addition, the rice cooker of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the embodiment, the reinforcing member 32 is disposed on the outer surface side at the front end portion 26 of the lower plate 24, but may be disposed on the inner surface side. Moreover, in the board | substrate part 25 of the lower board 24, you may arrange | position so that it may extend horizontally to the front end inner surface.

  Further, the lock mechanism is configured to include a lock member 67 disposed so as to be slidable in the front-rear direction with respect to the lid body 18, but is pivotally attached to a bearing portion provided on the lower plate 24. You may comprise by the hook member arrange | positioned, The structure is deformable as desired.

It is a fragmentary sectional view showing the rice cooker concerning the embodiment of the present invention. FIG. 2 is a perspective view of FIG. 1. It is a perspective view which shows a hinge connection part. It is a disassembled perspective view which shows a locking mechanism. (A), (B) is sectional drawing which shows the attachment structure of an operation member. The state which attached the inner cover to the cover body is shown, (A) is an important section sectional view and (B) is an important section perspective view. The state which has not attached | attached the inner cover to the cover body is shown, (A) is principal part sectional drawing, (B) is a principal part perspective view. The state which operated the operation member is shown, (A) is principal part sectional drawing, (B) is a principal part perspective view.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Rice cooker, 11 ... Rice cooker main body, 13 ... Hinge receiving part, 17 ... Locked part, 18 ... Cover body, 21 ... Hinge connection part, 23 ... Hinge spring, 26 ... Front end part, 26a, 26b ... Insertion hole 32 ... Reinforcing member, 33a, 33b ... Insertion hole, 34 ... Operation member, 41 ... Kick spring, 44 ... Lock mechanism disposition part, 56 ... Slide member, 67 ... Lock member, 69 ... Lock part, 72 ... Coil spring ( Urging means), 75 ... inner lid, 81 ... resin frame, 84 ... receiving part.

Claims (3)

In a rice cooker comprising a rice cooker body that detachably accommodates a rice cooker, and a lid that is hinged to the rice cooker body so as to be opened and closed,
A rice cooker characterized in that a reinforcing member extending in a horizontal direction is provided at a front end portion of the lid body opposite to the hinge connection portion over substantially the entire left and right width of the front end portion.   The rice cooker according to claim 1, wherein the reinforcing member is disposed on an outer surface or an inner surface of a front end portion of the lid. In the front part of the lid body, an operation member for opening the lid body from the rice cooker body and a lock mechanism interlocking with the operation member are provided, and the lock mechanism is arranged in the front-rear direction with respect to the lid body. It is provided with a lock member that is slidably arranged and forms a lock portion that is biased to a position protruding from the front end portion by a biasing means.
The rice cooker according to claim 2, wherein the reinforcing member is provided with an insertion hole through which the lock portion of the lock member is inserted and retracted.

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