JP2012251759A - Operation device for heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the operation failure of a locking mechanism caused by spilled boiled soup in an operation device having its operation panel 54 fixed to the upper surface of a movable frame 5 supported to appear/disappear in a housing case 6 disposed in a front part in the heating cooker and including pressing means 7 for pressing the movable frame 5 to a projection position side, and the locking mechanism of a push-push type for locking the movable frame 5 to a sinking position.SOLUTION: The locking mechanism includes a cam member 8 having a heart-shaped cam groove 81 fixed to a housing case 6, and a lever member 9 disposed in the movable frame 5. The lever member 9 is swingably supported at one end of a support plate part 56 disposed in the movable frame 5, and an engaging pin 92 is projected from the other end of the lever member 9 to engage the cam groove 81. A tongue part 94 is disposed in a part of the lever member 9 overlapping the support plate part 56, and the tip of the tongue part 94 is seated on the support plate part 56 in the floated state of the lever member 9 from the support plate part 56.

Description

  The present invention is supported by a storage case provided at a front portion of a cooking stove such as a gas stove in a protruding position protruding forward from the front surface of the container and an immersion position stored in the storage case. It is related with the operating device for cooking-by-heating machines which fixed the operation panel to the upper surface of the movable frame, and exposed the operation panel to the front of the body front by the movement of the movable frame to the protruding position.

  Conventionally, this type of operation device releases the locking by urging means for urging the movable frame toward the protruding position and locking the movable frame at the immersive position and pushing the movable frame from the immersive position. A push-push type locking mechanism (see, for example, Patent Document 1). In this device, a “lifting latch” manufactured by Nifco Co., Ltd. is used as a locking mechanism.

  This “lifting latch” includes a sliding body, a spring that urges the sliding body forward, an engagement pin that engages with a heart-shaped cam groove formed on the sliding body, A clamp member connected to the moving body is housed (for example, see Patent Document 2). When the movable frame is pushed from the protruding position to the immersive position, a striker extending backward from the movable frame is inserted into the box, the sliding body is pushed back by the striker, and the clamp member is closed by this retraction and the striker is engaged. Match. Thereafter, when the pushing operation of the movable frame is released, the sliding body is locked in the retracted position by the action of the heart-shaped cam groove, the clamp member is maintained in the engaged state with the striker, and the movable frame is engaged in the retracted position. Stopped. Next, when the movable frame is pushed from the immersive position, the sliding body is unlocked at the retracted position, and when the pushing operation is released, the sliding body moves forward and the clamp member is opened. The stop is released.

  By the way, if a large amount of spilled food is produced during use of the heating cooker, the simmered juice falling from the top plate will be applied to the movable frame protruding from the front of the container, and when the movable frame is moved to the immersive position, Spilled juice may enter the latch box through the striker. In this way, once boiled squeezed juice enters the box, the boiled spilled juice stays in the box, the sliding body sticks to the inner surface of the box with the spilled juice and stops moving, and the movable frame is locked in the immersive position There is a risk of being left behind.

JP 2004-263903 A (see paragraph 0032) Japanese Utility Model Publication No. 4-12957

  This invention makes it the subject to provide the operating device for cooking-by-heating machines which did not produce the malfunctioning of the latching mechanism by boiled simmered juice in view of the above point.

  In order to solve the above-described problems, the present invention provides a storage case provided at a front portion of a cooking device of a heating cooker with a protruding position protruding forward from the front surface of the container and an immersion position stored in the storage case. Operation for a heating cooker equipped with a movable frame supported movably, with the operation panel fixed to the upper surface of the movable frame, so that the operation panel is exposed to the front of the main body by moving the movable frame to the protruding position A push-push type device that biases the movable frame toward the protruding position and a push-push type that locks the movable frame at the retracted position and releases the lock by pushing the movable frame from the retracted position. The locking mechanism includes a cam member fixed to the storage case and a lever member provided on the movable frame. The cam member includes an inlet / outlet portion on the movable frame side, and an inlet / outlet port. Branch to the opposite side of the movable frame A heart-shaped cam groove having a pair of grooves for the forward path and a return path, and a locking groove section connecting the forward path groove section and the backward path groove section on the opposite side of the movable frame, the lever member at one end thereof An engagement pin that is swingably supported by the movable frame and engages with the cam groove at the other end of the lever member protrudes, and the pushing operation is released by pushing the movable frame from the protruding position to the retracted position. When the engagement pin moves from the entrance / exit portion of the cam groove to the locking groove portion via the outward groove portion, the movable frame is locked at the immersive position, and when the movable frame is pushed from the immersive position, the engaging pin is engaged. The pin is moved from the locking groove to the return path groove so that the locking of the movable frame is released.

  According to the present invention, unlike the conventional latch in which the structural member of the locking mechanism is housed, boiled juice is collected around the cam member and the lever member that are the structural members of the locking mechanism. It becomes difficult. Therefore, it is possible to effectively prevent the malfunction of the locking mechanism by suppressing sticking of the components of the locking mechanism due to the boiled juice.

  By the way, the lever member swings following the cam groove by the engagement of the engagement pin with the heart-shaped cam groove, but the pushing operation from the projecting position of the movable frame and the release operation and pushing operation from the immersion position are performed. To release the engagement pin in order of the forward groove, the locking groove, and the return groove along with the release, an appropriate frictional force is applied to the lever member so that the lever member does not swing freely due to its own weight or the like. It is necessary to grant. In this case, it is conceivable to apply a frictional force by bringing the portion of the lever member that overlaps the support plate portion of the movable frame having the pivot support portion of the lever member into surface contact with the support plate portion. However, in this case, the fixing force of the lever member due to the simmered juice to the support plate portion becomes strong, and unless the pushing operation force of the movable frame is made strong, the lever member does not swing and the operability is deteriorated.

  Therefore, in the present invention, a part of the lever member that overlaps the support plate portion of the movable frame having the pivot support portion of the lever member is elastically bent in the normal direction of the surface of the support plate portion facing the lever member. The tongue portion is provided, and a seating portion that rises toward the support plate portion is formed at the tip of the tongue piece portion, and the seat portion is supported with the surface of the lever member facing the support plate portion floating from the support plate portion. It is desirable to be configured to be seated on the plate portion. According to this, the seating portion comes into contact with the support plate portion with an appropriate force by the elastic force of the tongue piece portion, and an appropriate frictional force is applied to the lever member. Furthermore, the contact area of the lever member with respect to the support plate portion is reduced, and the fixing force of the lever member with the simmered juice on the support plate portion is also reduced. Therefore, the lever member swings along the cam groove even if the pressing force of the movable frame is not so strong, and deterioration of operability can be avoided as much as possible.

  When the frictional force is reduced due to the elastic deterioration due to creep of the tongue piece, when the movable frame is pushed from the protruding position, the lever member swings freely due to its own weight, etc., and the engagement pin moves to the entrance / exit of the cam groove. There is a possibility of shifting from the portion to the return groove portion. In this case, a step portion for preventing the engagement pin from shifting from the entrance / exit portion to the return passage groove portion is provided at the end portion of the return groove portion of the cam groove, or a part of the lever member is provided on the support plate portion. If a spring member that applies a frictional force in the swinging direction is provided on the lever member, even if the frictional force is reduced due to the elastic deterioration of the tongue piece portion, it is possible to perform a push operation from the protruding position of the movable frame. The engagement pin can be prevented from shifting from the entrance / exit to the return path groove.

  Some users may forcibly pull the movable frame locked in the immersion position forward without pressing it once. In this case, an excessive stress may act on the engaging pin engaged with the locking groove portion of the cam groove, and the engaging pin may be damaged.

  As a countermeasure for this, the engagement depth of the engagement pin with respect to the locking groove is determined by the bending of the lever pin and the support plate within the normal range of the lever member and the support plate from the locking groove. It is desirable to set so as to exit in the direction. According to this, even if the movable frame locked at the immersion position is forcibly pulled forward, the engaging pin comes out of the locking groove due to the bending of the lever member and the support plate, and the engaging pin is damaged. In addition, since the bending of the lever member and the support plate part is within the elastic range, the lever member and the support plate part are not plastically deformed, and the operation device need not be repaired. Become.

The perspective view which shows an example of the heating cooker which comprises the operating device of embodiment of this invention. The perspective view seen from the diagonally front upper part of the operating device of an embodiment. The perspective view seen from the back diagonally upward of the operating device of an embodiment. The cut side view of the state in which the movable frame of the operating device of embodiment exists in a protrusion position. The cut side view of the state in which the movable frame of the operating device of an embodiment exists in an immersion position. The perspective view of the lever member provided in the operating device of an embodiment. (A) The expanded sectional view of the principal part cut | disconnected by the VII-VII line of FIG. 5, (b) The expanded sectional view of the principal part when a movable frame is forcibly pulled to the protrusion position side. The perspective view which shows the modification of a cam member. The perspective view of the principal part of other embodiment.

  The heating cooker shown in FIG. 1 is installed in a ceiling through a plurality of burner openings provided on a top plate 11 that covers a top plate 11 that covers the top surface of the body 1 and a top body 11 that is installed so as to drop into an opening provided on a countertop of the system kitchen. A built-in gas stove including a plurality of stove burners 2 projecting on a plate 11 and a grill disposed in the vessel 1. A grill door 3 on the front side of the grille is arranged in the middle part in the lateral direction of the front side of the body, and a front panel 12 that is detachably attached to the body 1 from the front is arranged on the front side of the body on both sides of the grill door 3. Has been.

  The front panel 12 includes an operation panel portion 12a at the upper front portion and a back plate 12b (see FIG. 4) extending downward from the back side of the operation panel portion 12a. In the operation panel portion 12a, a plurality of operation elements 4 for igniting the stove burner 2 and the grill burner provided on the grill are arranged. In addition, a movable frame 5 that can be moved forward and backward at a position below the operation panel portion 12a is provided.

  Here, an opening 12c is formed in a portion of the back plate 12b below the operation panel portion 12a, and the storage case 6 shown in FIG. 2 is fixed to the front panel 12 while being inserted into the opening 12c. By attaching 12 to the front of the container, the storage case 6 is installed at the front of the container 1. Then, the movable frame 5 protrudes forward from the front panel 12 to the storage case 6 (position shown in FIGS. 2 to 4), and the immersive position (position shown in FIG. 5) stored in the storage case 6. It is supported so that it can move freely.

  Hereinafter, the movable frame 5 and the storage case 6 will be described in detail. The movable frame 5 is composed of a resin molded product having a front plate portion 51, left and right side plate portions 52, and an upper plate portion 53, and various types of setting a heating temperature, a heating time, and the like on the upper surface of the upper plate portion 53. An operation panel 54 having an operation switch 54a and a display unit 54b is fixed. The storage case 6 is formed of a resin molded product having an upper plate portion 61, left and right side plate portions 62, a bottom plate portion 63, and a frame-like flange portion 64 at the front end. Further, projecting piece portions 64a extending upward are formed at the left and right end portions of the upper side portion of the flange portion 64, and a pin 64b and a mounting hole 64c projecting forward are provided on the projecting piece portion 64a. Then, as shown in FIG. 4, the storage case 6 is inserted into the opening 12c of the back plate 12b from the front, the flange portion 64 is brought into contact with the front surface of the back plate 12b, and the concave hole on the back surface of the operation panel portion 12a. After that, the pin 64b is fitted into the screw plate 12b, and then the screw 12d is screwed into the screw hole on the back surface of the operation panel portion 12a through the back plate 12b and the mounting hole 64c, and the projecting piece portion 64a and the operation panel portion 12a are connected to the back plate 12b. And the storage case 6 is fixed to the front panel 12.

  As shown in FIGS. 4 and 5, C-shaped cutouts 55 are formed on the left and right sides of the lower end of the front end portion of the movable frame 5, and shaft portions 65 are formed on the left and right sides of the lower end of the front end portion of the storage case 6. By inserting the shaft portion 65 into the notch 55, the movable frame 5 is supported in the storage case 6 so as to be rotatable between the protruding position and the recessed position with the shaft portion 65 as a fulcrum. Yes. The operation panel 54 is exposed to the front of the front panel 12 by the rotation of the movable frame 5 to the protruding position, so that the operation panel 54 can be operated. It should be noted that the rear end portion of the upper plate portion 53 of the movable frame 5 is in contact with the upper side portion of the flange portion 64 of the storage case 6 from the rear so that the movable frame 5 projects forward from a predetermined projecting position. A stopper portion 53a is provided to prevent it.

  Further, a biasing means 7 that biases the movable frame 5 toward the protruding position, and a push-push type that locks the movable frame 5 at the retracted position and releases the lock by pushing the movable frame 5 from the retracted position. And a locking mechanism. The biasing means 7 is constituted by a torsion coil spring. One end 7 a is engaged with a spring receiving portion 63 a provided on the upper surface of the rear portion of the bottom plate portion 63 of the storage case 6, and the other end 7 b is connected to the upper plate of the movable frame 5. The portion 53 is engaged with a spring receiving portion 53 b provided on the lower surface of the rear portion.

  The locking mechanism includes a cam member 8 fixed to the storage case 6 and a lever member 9 provided on the movable frame 5. The cam member 8 is fixed to the rear upper surface of the bottom plate portion 63 of the storage case 6 in a standing posture inclined slightly forward. A heart-shaped cam groove 81 is formed on the surface of the cam member 8 facing outward in the lateral direction. The cam member 8 may be made of metal, but in the present embodiment, it is made of resin to prevent rust.

  As shown in FIG. 4, the cam groove 81 branches backward and forward from the movable frame 5 side, that is, the upper entrance / exit portion 82, and from the entrance / exit portion 82 to the opposite side of the movable frame 5, that is, downward. It has a pair of grooves 83 and 84 for the forward path and the backward path, and a locking groove 85 connecting the forward path groove 83 and the backward path groove 84 on the lower side. The entrance / exit part 82 is formed so as to widen in the front-rear direction upward. The forward groove 83 is curved in a rearward convex shape, and the upper end of the front groove side surface 83a is located in front of the arc 65 concentric with the shaft 65 passing through the entrance / exit 82, and the forward groove The lower end portion of 83 is positioned below the groove side surface 85a on the upper side of the locking groove portion 85 and ahead of the rear end of the groove side surface 85a. Further, the lower groove side surface 85 b located between the lower end portion of the outward path groove portion 83 and the lower end portion of the return path groove portion 84 is an inclined surface inclined downward toward the backward path groove portion 84. Is formed.

  As shown in FIGS. 6 and 7, the lever member 9 includes a support shaft 91 projecting from one end portion (upper end portion in FIG. 6) of the laterally outward surface and a laterally inwardly facing surface. There are provided an engaging pin 92 projecting at the end (lower end in FIG. 6), and a stopper projection 93 projecting on the surface facing outward in the lateral direction between the support shaft 91 and the engaging pin 92. . Further, a support plate portion 56 offset inward in the horizontal direction is provided at the rear portion of the side plate portion 52 on one side in the horizontal direction of the movable frame 5, and a shaft support hole 56 a serving as a shaft support portion is provided in the support plate portion 56. And an arc-shaped long hole 56b concentric with the shaft support hole 56a. Then, by inserting the support shaft 91 into the shaft support hole 56a from the inner side in the lateral direction, the lever member 9 is swingably supported by the support plate portion 56, and further, the stopper projection from the inner side in the lateral direction is inserted into the long hole 56b. By inserting 93, the swing range of the lever member 9 is limited to a predetermined range. This predetermined range is set so that the engaging pin 92 fits within the width of the upper end of the entrance / exit portion 82 of the cam groove 81 when the movable frame 5 is pushed backward from the protruding position.

  Here, the support shaft 91 is formed with an axial slit 91a and a claw portion 91b at the tip. When the support shaft 91 is inserted into the shaft support hole 56a, the width of the slit 91a is narrowed. When the support shaft 91 penetrates the shaft support hole 56a, the width of the slit 91a is increased and the claw portion 91b is connected to the shaft support hole. The support shaft 91 is prevented from coming off by engaging with the end edge of 56a. In addition, instead of the shaft support hole 56a, a support shaft serving as a shaft support portion is projected from the support plate portion 56, and this support shaft is inserted into a shaft support hole formed at one end of the lever member 9, so that the lever member 9 is It is also possible to support it in a swingable manner.

  When the movable frame 5 is pushed from the protruding position to the retracted position, the engaging pin 92 passes through the entrance / exit portion 82 of the cam groove 81 and comes into contact with the front groove side surface 83a of the forward path groove portion 83, and thereafter the engaging pin 92 Passes through the forward groove 83 and reaches its lower end. Thereafter, when the pressing operation of the movable frame 5 is released, the engagement pin 92 is moved upward by the rotation of the movable frame 5 by the biasing force of the biasing means 7 and is engaged with the groove side surface 85a on the upper side of the locking groove portion 85. The movable frame 5 is locked at the immersion position as shown in FIG. When the movable frame 5 is pushed from the retracted position, the engaging pin 92 comes into contact with the lower groove side surface 85b of the locking groove portion 85, and is guided by the inclination of the groove side surface 85b to move to the return path groove portion 84. . Thereby, the latching of the movable frame 5 is released. When the pushing operation of the movable frame 5 is released in this state, the engagement pin 92 passes through the return path groove portion 84 and the entrance / exit portion 82 by the rotation of the movable frame 5 by the urging means 7 and is disengaged above the cam groove 81. Then, the movable frame 5 returns to the protruding position as shown in FIG.

  By the way, when a large amount of spilled food is produced during use of the cooking device, the simmered juice falling from the top plate 11 is applied to the movable frame 5 located at the protruding position, and the movable frame 5 is rotated to the immersive position. The simmered juice may flow to the arrangement portion of the locking mechanism including the cam member 8 and the lever member 9 in some cases. However, in the present embodiment, unlike the conventional latch in which the structural member of the locking mechanism is housed in a box, the cam member 8 and the lever member 9 which are the structural members of the locking mechanism are opened. Since it is provided, it becomes difficult for boiled spilled juice to accumulate around the components of the locking mechanism. Therefore, it is possible to effectively prevent the malfunction of the locking mechanism by suppressing sticking of the components of the locking mechanism due to the boiled juice.

  The lever member 9 swings following the cam groove 81 due to the engagement of the engagement pin 92 with the cam groove 81. However, if the lever member 9 swings freely due to its own weight or the like, The engaging pin 92 that has passed through the entrance / exit portion 82 by the pushing operation from the protruding position may enter the return path groove portion 84, and this makes it impossible to lock the movable frame 5 at the retracted position. Accordingly, the pushing operation of the movable frame 5 from the protruding position, the releasing operation thereof, the pushing operation from the retracted position and the releasing operation thereof, the engaging pin 92 is surely arranged in the order of the forward groove portion 83, the locking groove portion 85, and the backward groove portion 84. In order to shift, it is necessary to apply an appropriate frictional force to the lever member 9.

  In this case, it is conceivable to apply a frictional force by bringing the portion of the lever member 9 that overlaps the support plate portion 56 of the movable frame 5 into surface contact with the support plate portion 56. However, in this case, the fixing force of the lever member 9 due to the simmered juice to the support plate portion 56 becomes strong, and unless the pushing operation force of the movable frame 5 is increased, the lever member 9 does not swing and the operability is deteriorated. .

  Therefore, in the present embodiment, as shown in FIG. 6, a part of the portion of the lever member 9 that overlaps the support plate portion 56 is elastic in the lateral direction that is the normal direction of the surface of the support plate portion 56 that faces the lever member 9. The tongue piece part 94 which can be bent flexibly is provided. More specifically, the lever member 9 is made of resin such as PBT, POM, PA or the like having moderate elasticity, and the surface of the lever member 9 that faces the support plate portion 56 (the surface facing outward in the lateral direction). A pair of groove portions 95 and 95 are formed in the portion between the support shaft 91 and the stopper projection 93 so as to be aligned in the width direction of the lever member 9 and recessed inward in the lateral direction, and the lever positioned between the groove portions 95 and 95. A pair of tongue pieces 94, 94 projecting from both sides of the member 9 in the width direction is provided. Here, a gap is secured between each tongue piece portion 94 and each groove portion 95, so that each tongue piece portion 94 can bend elastically in the lateral direction. In addition, a seating portion 94a is formed at the tip of each tongue piece portion 94. The seating portion 94a swells outward in the lateral direction. Then, as shown in FIG. 7A, the seat portion 94 a is seated on the support plate portion 56 with the surface of the lever member 9 facing outward in the lateral direction floating from the support plate portion 56.

  According to this, the seating portion 94 a comes into contact with the support plate portion 56 with an appropriate force due to the elastic force of the tongue piece portion 94, and an appropriate friction force is applied to the lever member 9. Furthermore, the contact area of the lever member 9 with respect to the support plate part 56 becomes narrow, and the fixing force of the lever member 9 with the simmered juice with respect to the support plate part 56 also becomes weak. Therefore, the lever member 9 swings along the cam groove 81 without making the pushing operation force of the movable frame 5 so strong that it is possible to avoid deterioration of operability as much as possible.

  Depending on the user, the movable frame 5 locked at the immersion position may be forcibly pulled forward without being pushed once. In this case, an excessive stress may act on the engaging pin 92 engaged with the locking groove portion 85 of the cam groove 81, and the engaging pin 92 may be damaged.

  Therefore, in the present embodiment, the engagement depth D (see FIG. 7A) of the engagement pin 92 with respect to the locking groove 85 is set to the lever member 9 (the entire lever member 9 including the tongue piece portion 94) and the support plate. The engagement pin 92 is set so as to come out from the cam groove 81 outward in the lateral direction by the bending of the portion 56 within the elastic range outward in the lateral direction. Here, when the movable frame 5 locked at the immersion position is forcibly pulled forward, first, the lever member 9 is brought into close contact with the support plate portion 56 due to the bending of the tongue piece portion 94, and thereafter, FIG. ), The lever member 9 bends outward in the lateral direction and the support plate portion 56 also bends outward in the lateral direction, so that the engaging pin 92 comes out of the engaging groove portion 85 outward in the lateral direction. Therefore, unreasonable stress does not act on the engagement pin 92, and the breakage of the engagement pin 92 can be prevented. Further, since the bending of the lever member 9 and the support plate portion 56 when the engagement pin 92 comes out falls within the elastic range, the lever member 9 and the support plate portion 56 do not undergo plastic deformation, and the operation device need not be repaired. Become.

  By the way, when the frictional force applied to the lever member 9 decreases due to the elastic deterioration due to creep of the tongue piece portion 94, when the movable frame 5 is pushed from the protruding position, the lever member 9 swings freely by its own weight or the like. As a result, the engagement pin 92 may move from the entrance / exit portion 82 of the cam groove 81 to the return passage groove portion 84, and the movable frame 5 may not be locked at the retracted position.

  Therefore, in the cam member 8 shown in FIG. 8, a stepped portion 84 a that prevents the engagement pin 92 from moving from the entrance / exit portion 82 to the return passage groove portion 84 is provided at the end portion on the entrance / exit portion 82 side of the return passage groove portion 84. ing. Specifically, the groove depth of the end portion on the entrance / exit portion 82 side of the return path groove portion 84 is made shallower than the engagement depth of the engagement pin 92 with respect to the cam groove 81, and the engagement pin 92 is engaged with the end portion. A stepped portion 84a is formed due to a difference between the groove depth of the entrance / exit portion 82 and the forward passage groove portion 83 formed to a depth equal to or greater than the combined depth, and the transition of the engagement pin 92 from the entrance / exit portion 82 to the return passage groove portion 84 is stepped. The engagement pin 92 is prevented from coming into contact with the portion 84a. The groove bottom at the upper part of the return path groove portion 84 is formed on the inclined surface 84b so that the groove depth gradually decreases toward the stepped portion 84a.

  According to this, the frictional force decreases due to the elastic deterioration of the tongue piece portion 94, and the engaging pin 92 passes through the entrance / exit portion 82 and then enters the return path groove portion 84 when pushing from the protruding position of the movable frame 5. Even so, the engaging pin 92 reaches the locking groove portion 85 via the forward path groove portion 83 without shifting to the backward path groove portion 84, so that the movable frame 5 can be reliably locked at the retracted position. When the movable frame 5 is returned from the retracted position to the projecting position, the engaging pin 92 is pushed upward in the lateral direction while the tongue piece 94 is bent by the inclined surface 84b on the upper part of the return groove portion 84, and the doorway is opened. Transition to section 82.

  Further, as a countermeasure when the frictional force is reduced due to the elastic deterioration of the tongue piece 94, as shown in FIG. 9, the support plate 56 of the movable frame 5 is brought into contact with a part of the lever member 9, and the lever member 9 is A spring member 96 that applies a frictional force in the swing direction may be provided. The embodiment shown in FIG. 9 will be described in more detail. The spring member 96 includes a torsion coil spring having a coil portion 96a that is externally inserted into a pin portion 56c that protrudes from a laterally outward side surface of the support plate portion 56. An arcuate contact portion 96b is formed at the end of the spring member 96 extending rearward from the coil portion 96a along the elongated hole 56b formed in the support plate portion 56. The contact portion 96b is brought into contact with the stopper projection 93 of the lever member 9 inserted through the long hole 56b, so that an appropriate frictional force in the swinging direction is applied to the lever member 9.

  According to this, even when the frictional force is reduced due to the elastic deterioration of the tongue piece portion 94, the lever member 9 swings freely by its own weight or the like when pushing from the protruding position of the movable frame 5, and the engagement pin 92 Can be prevented from moving from the entrance / exit portion 82 of the cam groove 81 to the return passage groove portion 84 by the frictional force applied to the lever member 9 by the spring member 96.

  If the step portion 84a shown in FIG. 8 and the spring member 96 shown in FIG. 9 are provided, the lever member 9 can swing without receiving the frictional force from the support plate portion 56. In addition, it is possible to prevent the engagement pin 92 from moving from the entrance / exit portion 82 of the cam groove 81 to the return path groove portion 84 during the pushing operation from the protruding position of the movable frame 5. Therefore, the tongue piece 94 can be omitted.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the tongue piece portion 94 is formed integrally with the lever member 9, but the tongue piece portion 94 formed of a spring plate separate from the lever member 9 may be attached to the lever member 9. . Moreover, although the said embodiment applies this invention to the operating device which supports the movable frame 5 to the storage case 6 so that rotation is possible, operation which supports a movable frame to a storage case so that sliding is possible back and forth. The present invention can be similarly applied to an apparatus. Further, the present invention can be similarly applied to an operation device for a cooking device other than a gas stove that uses an electromagnetic induction coil or an electric heater as a heat source.

DESCRIPTION OF SYMBOLS 1 ... Container, 5 ... Movable frame, 54 ... Operation panel, 56 ... Supporting plate part, 56a ... Shaft support hole (shaft support part), 6 ... Storage case, 7 ... Energizing means, 8 ... Cam member, 81 ... Cam Groove, 82 ... Entrance / exit portion, 83 ... Outward groove portion, 84 ... Return passage groove portion, 84a ... Step portion, 85 ... Locking groove portion, 9 ... Lever member, 92 ... Engagement pin, 94 ... Tongue piece portion, 94a ... Seating 96, a spring member.

Claims (5)

The storage case provided in the front part of the body of the heating cooker is equipped with a movable frame that is movably supported between a protruding position protruding forward from the front of the container body and an immersion position stored in the storage case. An operation device for a heating cooker in which the operation panel is fixed to the upper surface of the frame, and the operation panel is exposed to the front of the front of the container body by moving the movable frame to the protruding position,
An urging means for urging the movable frame toward the protruding position; and a push-push type locking mechanism that locks the movable frame at the immersive position and releases the locking by pushing the movable frame from the immersive position. In what we have,
The locking mechanism is composed of a cam member fixed to the storage case and a lever member provided on the movable frame.
The cam member has an entrance / exit part on the movable frame side, a pair of forward and return groove parts extending from the entrance / exit part to the opposite side of the movable frame, and a forward groove part and a return path on the opposite side of the movable frame. A heart-shaped cam groove having a locking groove portion connecting the groove portion,
The lever member is swingably supported by the movable frame at one end thereof, and an engaging pin that engages with the cam groove is projected at the other end of the lever member, and the movable frame is pushed from the protruding position to the retracted position. When the pushing operation is released, the engaging pin moves from the entrance / exit portion of the cam groove to the locking groove portion via the outward groove portion, the movable frame is locked at the immersive position, and the movable frame is moved to the immersive position. An operation device for a heating cooker, wherein the engaging pin shifts from the locking groove portion to the return path groove portion to release the locking of the movable frame when the operation is pushed.   A tongue piece that can be elastically bent in the normal direction of the surface of the support plate facing the lever member is formed on a part of the portion of the lever member that overlaps the support plate of the movable frame having the shaft support of the lever member. A seating portion is formed at the tip of the tongue piece, and the seating portion is seated on the support plate in a state where the surface of the lever member facing the support plate is lifted from the support plate. The operating device for a heating cooker according to claim 1.   The step part which prevents that the said engagement pin transfers to the groove part for return paths from an entrance / exit part is provided in the edge part by the side of the said entrance / exit part of the said return path groove part of the said cam groove. The operation apparatus for heating cookers according to 2.   The operating device for a heating cooker according to claim 1 or 2, wherein a spring member that abuts a part of the lever member and applies a frictional force in a swinging direction to the lever member is provided on the support plate portion. . The engagement depth of the engagement pin with respect to the locking groove is determined by the bending of the lever member and the support plate within the elastic range in the normal direction from the locking groove to the normal direction. The operation device for a heating cooker according to any one of claims 1 to 4, wherein the operation device is set so as to exit.

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