JP2010187895A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a rice cooker having a high reliability and safety which prevents the lifting and the peeling of a panel at the time of use from occurring, and avoids safety troubles resulting from the exposure of an internal board or the fall of sealability in the worst case. <P>SOLUTION: The rice cooker includes: a pot which is freely detachably housed in the body of the rice cooker; a lid body which freely openably/closably covers the opening of the body; and the panel 6 which performs the operation input of operations and the display of the operation states. A fixing pin 11 which is installed on the rear surface of the panel is made to go through the fixing hole 12 of a fixing section. In addition, a push nut 13 is fitted on the outer peripheral surface of the fixing pin. Thus, the floating and the peeling of the panel can be prevented from occurring even when the temperature of the panel rises by the hitting of steam to the panel at the time of use. Therefore, safety troubles resulting from the exposure of the internal board or the fall of the sealability can be avoided in the worst case. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rice cooker used for general home use or business use.

  Conventionally, this type of rice cooker includes a main body, a pan detachably provided on the main body, a lid that covers the upper surface of the pan so as to be freely opened and closed, and has an operation portion disposed thereon, and the surface of the operation portion is transparent. The configuration covered with a panel made of synthetic resin.

  The panel is fixed by engaging a plurality of claws protruding from the back side of the panel with the main body.

Also, on the back side of the panel, there is a board that operates the equipment. Therefore, in order to prevent water adhering to the main body from flowing in when using or cleaning the equipment, In many cases, a sealing member such as a tape is provided as an auxiliary (see, for example, Patent Documents 1 and 2).
JP 2001-321264 A JP 2006-141600 A

  However, in conventional rice cookers, consideration has been given to deformation and floating on the premise that claws are fitted.

  For example, in order to prevent drying after the rice has been cooked, rice may be cooked with the top of the lid covered with a cloth, but at that time the steam from the steam hole of the panel will be discharged to the outside by the cloth. The panel around the steam hole is heated to about 100 ° C.

  At this time, the panel tends to deform due to softening or shrinkage due to heat, but in the case of fixing with a nail, the nail itself is softened by heat and easily deforms in the direction of disengagement, and the panel may not be held. It was.

  The present invention has been made in view of the above circumstances, and even when the panel is heated by steam or the like, by obtaining a means for reliably holding the panel to the main body, the panel can be prevented from being lifted or peeled off, and accompanying the lifting It avoids cloudiness of display due to the ingress of water or steam, abnormal operation, unsafeness due to exposure of internal substrate and other deterioration of sealing performance.

  In order to solve the above problems, the present invention provides a main body, a pan that is detachably housed in the main body, a lid that covers the opening surface of the main body so as to be openable and closable, and an operation input and an operation state display. The fixing pin provided on the back surface of the panel is arranged to penetrate the fixing hole provided in the main body panel fixing portion, and a push nut is attached to the outer peripheral surface of the fixing pin.

  According to the present invention, even if the panel is heated by steam or the like by rice cooking, it is possible to prevent the panel from floating and peeling by reliably maintaining the fixation with the main body, and it becomes possible to reliably perform the seal, It is possible to avoid the cloudiness of display due to the ingress of water or steam, the operation abnormality, the unsafeness due to the exposure of the internal substrate or other deterioration of the sealing performance.

  The first invention includes a main body, a pan detachably housed inside the main body, a lid that opens and closes the opening of the main body, and a panel that displays operation inputs and operational states. The fixing pin provided on the back surface of the panel is passed through the fixing hole of the fixing portion, and a push nut is attached to the outer peripheral surface of the fixing pin, thereby securely securing the panel during cooking rice. Therefore, it is possible to prevent the panel from floating or peeling off, and to perform sealing reliably. Safety can be avoided.

  According to a second aspect of the present invention, in the first aspect of the present invention, the deformation preventing ribs are arranged around the fixing pins, so that the panel is fixed by the fixing pins so that the floating of the panel is not only deformed to the periphery of the fixing pin portion. By expanding the prevention range, the effect of the fixing pin can be maximized, and the number of fixing pins can be minimized.

  According to a third invention, in the first or second invention, the push nut pressing means is provided inside the fixing portion, and the push nut is sandwiched between the fixing portion and the push nut pressing means. If the push nut is set at a predetermined position for fixing the push nut, the push nut can be automatically set only by setting the panel, so that the assembling work can be performed efficiently.

  According to a fourth invention, in the third invention, the clearance between the fixed portion and the push nut pressing means is set larger than the thickness of the push nut, so that when the panel is set, Even when the axis of the fixed pin is displaced due to variations, the push nut shifts to a position that matches the axis of the fixed pin as the fixed pin tip enters the hole of the push nut, and can be set at a predetermined position It is.

  5th invention is the main body, the pan accommodated in the said main body so that attachment or detachment is possible, the cover body which covers the said main body opening surface so that opening and closing is possible, the operation part which carries out operation input of operation, and the display part which displays an operation state A panel in cooking rice or the like by attaching a push nut to a portion protruding from the panel while passing a fixing pin provided in the main body through a fixing hole provided in the panel. Can be reliably secured, and the panel can be prevented from being lifted or peeled off, and can be reliably sealed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 to 3, reference numeral 1 denotes a main body having an open upper surface, and reference numeral 2 denotes a pan, which is detachably stored in the main body 1.

  A lid 3 is provided at a position covering the upper surface opening of the main body 1, and the lid 3 is pivotally supported by a hinge shaft 4 provided at the rear of the main body 1. A steam hole 5 for discharging steam generated in the pan 2 is disposed through the lid 3.

  The lid 3 is composed of an outer lid 7 having a panel 6 disposed at the center of the surface, and the panel 6 includes an operation unit for operating the device and a display unit for displaying the operation state. Has been. Reference numeral 8 denotes an operation board disposed between the outer lid 7 and the panel 6.

A plurality of claws 9 are provided on the back surface of the panel 6, and are fixed to the outer lid 7 by engaging the claws 9 with the outer lid 7 penetrating.

  A sealing double-sided tape 10 is provided between the panel 6 and the outer lid 7 in order to prevent water from entering the inside of the main body 1 during use or maintenance.

  A cylindrical fixing pin 11 projecting from the back surface of the panel 6 passes through a fixing hole 12 formed in the outer lid 7, and the panel 6 is assembled to the fixing pin 11 while the lid 3 is being assembled. After setting, the push nut 13 is fixed from the inside of the outer lid 7.

  Here, the state around the steam hole 5 during the rice cooking operation will be described.

  When rice cooking is started and the inside of the pan 2 is heated, steam is discharged from the steam hole 5. If the steam is not discharged to the outside during cooking or warming, the taste will be kept longer, and in order to prevent dust from entering the steam hole 5, a cloth cloth will be used on the lid 3. Sometimes.

  When used under such conditions, the steam generated during rice cooking is such that the surface of the lid 3, particularly the steam hole 5 is blocked by the cloth, and high-temperature steam is induced on the panel 6 surface. Therefore, the panel 6 is exposed to a high temperature and high humidity atmosphere.

  Since the panel 6 has a residual stress remaining when it is molded and a difference in thermal shrinkage from the printing film constituting the surface thereof, the panel 6 is deformed and tends to rise when the temperature becomes high.

  When the panel 6 is lifted, it is difficult to ensure the sealing property with the outer lid 7, and there is a possibility that water or steam flows into the operation substrate 8, which may cause malfunction of the device or exposure of the internal substrate.

  Therefore, the panel 6 is mechanically fixed to the outer lid 7 with the push nut 13 to prevent thermal deformation.

  Here, deformation preventing ribs 14 are formed on both sides of the fixing pin 11. The cross-section of the deformation prevention rib 14 has a cross-sectional shape as shown in FIG. 2 and is arranged so as to pass through a side portion of the fixing pin 11 so as to cut a narrow portion of the panel 6, that is, a low-strength portion. Has been.

  By disposing the deformation preventing ribs 14, it is possible to increase the rigidity around the fixing pin 11, to prevent thermal deformation, and to increase the number of push nuts 13 unnecessarily.

  Thereby, the engagement between the panel 11 and the main body 1 is ensured, the panel can be prevented from being lifted or peeled off when the device is used, and the sealing can be surely performed. It is possible to avoid abnormalities, unsafeness due to exposure of the internal substrate and other deterioration in sealing performance.

  In the present embodiment, the configuration in which the panel 6 is fixed to the outer lid 7 has been described. However, the same effect can naturally be expected when the panel 6 is fixed to other parts or the main body 1.

(Embodiment 2)
4 and 5 show the second embodiment, and the same reference numerals are given to the components that perform the same operations as those in FIG. 2, and the specific descriptions thereof are the same as those in the first embodiment.

  That is, the push nut pressing means 15 is fixed to the outer lid 7 on the side opposite to the panel 6 of the push nut 13.

  Here, the state before setting the panel 6 to the cover body 3 is shown in FIG.

  The push nut 13 is sandwiched between the push nut pressing means 15 and the outer lid 7.

  The gap between the push nut pressing means 15 and the outer lid 7 is set larger than the plate thickness of the push nut 13 so that the push nut 13 can slide freely in the horizontal direction.

  In this state, the panel 6 is set on the lid 3. Immediately before being set at a predetermined position, the tip of the fixing pin 11 is inserted into the hole of the push nut 13. The tip of the fixing pin 11 has a spherical shape or a chamfered shape to invite the push nut 13. When the push nut 13 is displaced from the fixing pin 11, it is fixed by the tip of the fixing pin 11. When the panel 6 is pushed in, the push nut 13 is supported from the inside of the lid body 3 by the push nut pressing means 15 to the back of the fixed pin 11 when guided by sliding to a position coinciding with the axial center of the pin 11. Plugged in.

(Embodiment 3)
FIG. 6 shows a twenty-third embodiment, and the same reference numerals are given to components that perform the same operations as those in FIGS. 2 and 4, and the specific description thereof uses those of the first and second embodiments.

  A cylindrical fixing pin 16 protrudes from a concave center portion provided on the outer lid 7. The fixing pin 16 is disposed so as to pass through a fixing hole 17 provided in the panel 6. After the panel 6 is set at a predetermined position during the assembly of the lid 3, the push nut 13 is formed from the upper side of the panel 6. Is attached to the fixing pin 16.

  A push nut cover 18 is set from above the fixing pin 16 and the push nut 13 is hidden. The push nut cover 18 may be a sheet-like one with an adhesive material or a rubber-like one inserted into the concave portion.

  Needless to say, in the present embodiment, the same effect can be obtained when the panel 6 is set not on the lid 3 but on the main body 1 as in the first embodiment.

  As described above, the present invention can be applied not only to household use but also to other electric appliances equipped with a panel and a business rice cooker.

Sectional drawing of the rice cooker in Embodiment 1 of this invention. Cross section of the main part of the rice cooker Rear view of the panel part of the rice cooker Sectional drawing of the principal part of the rice cooker in Embodiment 2 of this invention. Cross-sectional view of the main part at the time of panel setting in the rice cooker Sectional drawing of the principal part of the rice cooker in Embodiment 3 of this invention.

DESCRIPTION OF SYMBOLS 1 Main body 2 Pan 3 Cover body 6 Panel 11, 16 Fixing pin 12, 17 Fixing hole 13 Push nut 14 Deformation prevention rib 15 Push nut holding means

Claims (5)

A main body, a pan detachably housed in the main body, a lid body that covers the opening of the main body so as to be openable and closable, and a panel that displays an operation input and an operation state of the operation. The rice cooker which penetrated the fixing pin provided in to the fixing hole of a fixing | fixed part, and also attached the push nut to the said fixing pin outer peripheral surface. The rice cooker according to claim 1, wherein a deformation preventing rib is arranged around the fixing pin. The rice cooker according to claim 1 or 2, wherein a push nut pressing means is provided inside the fixing portion, and the push nut is sandwiched between the fixing portion and the push nut pressing means. The rice cooker according to claim 3, wherein a gap between the fixed portion and the push nut pressing means is set larger than a thickness of the push nut. A main body, a pan that is detachably housed in the main body, a lid that covers the main body opening surface in an openable and closable manner, and a panel that is provided with an operation unit for inputting operation and a display unit for displaying an operation state. A rice cooker having a fixing pin provided in the main body penetrating through a fixing hole provided in the panel and a push nut attached to a portion protruding from the panel.

Images