JP2013083383A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker that can preventi a top board from being erroneously assembled.SOLUTION: A plurality of engagement pieces 51 are disposed on the front flange part 28 of an appliance 2. The engagement pieces 51 are provided with a first extension part 55 and a second extension part 56. A protrusion part 58 which is protruded in an arc shape toward the upper side is disposed on the second extension part 56. The second extension part 56 is engaged with the top end part of a curling part formed on the lower part of the front end side of the top board from the upper side. When the top end part of the curl part of the top board is not engaged with the second extension part 56 of the top end of the engagement piece 51, the curl part of the top board becomes such a state as to be placed on the summit of the protrusion part 58 disposed on the second extension part 56 of the engagement piece 51. In this case, the front edge side of the top board becomes such a state as to float on the upper side and a large gap is formed between the top board and a packing 70 fit to the engagement flange part 27 of the appliance 2. An operator can simply be aware of the large gap produced between the top board and the packing 70.

Description

  The present invention relates to a cooking device provided with a top plate.

  2. Description of the Related Art Conventionally, a built-in stove including an engagement bent portion formed by bending an outer peripheral edge downward inward and a top plate that covers a case opening at the upper end of a main body case is known (for example, Patent Document 1). reference). The body case of the stove body of the built-in stove is formed in a rectangular box shape that opens upward. On the outer periphery of the case opening, an engagement flange that engages with the counter hole of the counter top projects. Among the engaging flanges, a plurality of engaging pieces that engage with the top plate are disposed on the front flange portion corresponding to the front plate of the main body case. The engaging piece is formed by bending a rectangular metal plate. The engagement piece includes a base plate portion fixed to the front flange portion, a bent upright portion continuous with the end portion of the base plate portion, and an engagement plate portion bent horizontally forward from the upper end of the bent upright portion. The engaging plate portion engages from above with an engaging bent portion formed at the lower outer periphery of the top plate that covers the case opening of the main body case.

Japanese Patent No. 3795839

  However, in the built-in stove described in Patent Document 1, when the top plate is assembled to the main body case in a state where the engagement bent portion of the top plate cannot be engaged with the engagement piece of the main body case, the top plate and the main body case The gap formed between the upper end and the upper end is so small that it may be hidden behind the engaging bent portion of the top plate, and it has been difficult to confirm the incorrect assembly of the top plate with the appearance. Even when the engagement bent portion of the top plate cannot be engaged with the engagement piece of the main body case, the position of the fixing hole provided in the top plate and the fixing hole provided in the main body case Since the position does not deviate, there is a problem that the operator fixes the screw as it is without noticing that the top plate is in the wrong assembly state. In addition, even if you notice misassembly after fixing the top plate to the body case with screws, the engagement piece may be crushed and deformed by the top plate, so the engagement piece is reused. In order to do so, an accurate repair work was required.

  An object of the present invention is to provide a heating cooker that can prevent erroneous assembly of the top board.

  The cooking device according to claim 1 of the present invention includes an appliance whose upper portion is open, and an engagement bent portion formed by bending an outer peripheral edge downward inward, and covers the opening of the appliance. A cooking device comprising: a top plate attached to an upper portion of the instrument; and an instrument side engagement piece that is provided at an edge of the opening of the instrument and engages with the engagement bent portion of the top plate, The instrument side engagement piece extends from the upper part of the first extension part in a direction away from the instrument, and extends to the engagement bend. And a second extension part engaged from above with respect to the tip part of the part, wherein the second extension part has a convex shape protruding upward.

  In addition to the configuration of the invention according to claim 1, the cooking device of the invention according to claim 2 has a distal end portion of the engagement bent portion from the outside of the top plate toward the lower surface of the top plate. An inclined portion that is inclined obliquely upward toward the inside is provided.

  In addition to the configuration of the invention according to claim 2, the cooking device of the invention according to claim 3 is arranged such that the top plate is not displaced in the horizontal direction with respect to the upper part of the appliance, and the appliance side In a state where the second extending portion of the engaging piece is not engaged with the engaging bent portion, the outer surface of the inclined portion is disposed on the apex of the convex shape of the second extending portion. It is characterized by that.

  In addition to the configuration of the invention according to claim 2, the cooking device of the invention according to claim 4 is provided with a fixed portion provided on the top plate or the component mounted in the appliance. A fixing part for fixing is provided.

  Further, in the cooking device of the invention according to claim 5, in addition to the configuration of the invention according to any one of claims 1 to 4, the convex portion shape is a curved surface shape.

  Moreover, the cooking device of the invention according to claim 6 is provided with an appliance having an engagement extension portion that is open at an upper portion and extends substantially horizontally from an edge portion of the opening toward the inside of the opening, A top plate that is attached to the upper part of the instrument so as to cover the opening of the instrument, and a top-plate-side engagement that is provided on the outer peripheral portion of the lower surface of the top panel and engages with the engagement extension portion of the top panel A cooking device comprising a piece, wherein the top-plate-side engaging piece is formed from a third extending portion that extends to the lower side of the outer peripheral portion of the lower surface, and a lower end portion of the third extending portion. A fourth extension portion that is folded back substantially horizontally and extends away from the top plate, and engages with the engagement extension portion from below, and the fourth extension portion projects downward. It has the convex part shape to be characterized.

  In the cooking device according to the first aspect of the present invention, when the engagement bent portion of the top plate is not normally engaged with the appliance side engagement piece, the engagement bend is formed on the convex shape of the second extension portion. The part is put on. As a result, the top plate is positioned higher than the top surface of the instrument, so that a gap is formed between the top plate and the top surface of the instrument, and the top plate is in a floating state. Since the operator can easily notice that the top plate is floating from the upper surface of the instrument, it is possible to confirm the incorrect assembly of the top plate only by the appearance.

  In addition, in the cooking device of the invention according to claim 2, in addition to the effect of the invention of claim 1, the work is performed in a state where the engagement bent portion of the top plate is not normally engaged with the appliance side engagement piece. When a person pushes the top plate downward, the inclined portion of the engaging bent portion slides with respect to the convex shape of the second extending portion of the instrument side engaging piece. Therefore, since the top plate is displaced with respect to the instrument, the operator can easily confirm that the assembly is incorrect.

  In addition, in the cooking device of the invention according to claim 3, in addition to the effect of the invention of claim 2, the top plate is mounted in a state where the engagement bent portion of the top plate is not engaged with the appliance side engaging piece. When it is going to attach to the upper part of the instrument, the outer surface of the inclined part comes into contact with the apex of the convex shape of the second extending part. When the operator pushes the top plate downward in this state, the inclined portion slides down with respect to the apex of the convex shape. Thus, the operator can easily confirm that the top plate is incorrectly assembled.

  In addition, in the cooking device of the invention according to claim 4, in addition to the effect of the invention of claim 2, the work is performed in a state where the engagement bent portion of the top plate is not normally engaged with the appliance side engagement piece. When a person pushes the top plate downward, the inclined portion of the engagement bent portion slides with respect to the convex shape of the instrument side engagement piece. Therefore, since the top plate is displaced with respect to the instrument, the fixed part on the top plate side is shifted from the fixed part on the instrument side. Thereby, since an operator cannot fix a fixing | fixed part with respect to a to-be-fixed part, it can prevent reliably that a top plate is fixed to an instrument in the state of incorrect assembly | attachment.

  Further, in the cooking device of the invention according to claim 5, in addition to the effect of the invention according to any one of claims 1 to 4, since the convex portion shape is a curved surface, the top plate is engaged with the instrument side engaging piece. When the top plate is pushed downward in a state where the bent portion is not normally engaged, the engagement bent portion of the top plate can smoothly slide with respect to the convex shape. As a result, the top plate is displaced with respect to the instrument, so that erroneous assembly can be easily confirmed.

  Moreover, in the heating cooker of the invention which concerns on Claim 6, when the top-plate side engagement piece is not normally engaging with the engagement extension part of an instrument, the convex part shape of a top-plate side engagement piece is engaged. It will be in the state mounted on an extension part. As a result, the top plate is positioned higher than the top surface of the instrument, so that a gap is formed between the top plate and the top surface of the instrument, and the top plate is in a floating state. Since the operator can notice that the top board is floating from the upper surface of the instrument, it is possible to easily confirm the incorrect assembly of the top board only by the appearance.

It is a perspective view of built-in stove 1. It is the elements on larger scale of the instrument 2 of the state which removed the top plate 4. FIG. It is an enlarged view in the area | region enclosed with the double dash line W1 shown in FIG. It is sectional drawing of the outer periphery protruding part 60 vicinity of the top plate 4. FIG. It is a figure which shows the state which the curl part 65 engaged normally with the engagement piece 51. FIG. It is a figure which shows the state by which the inclination part 66 of the curl part 65 was mounted on the vertex of the convex part 58 of the engagement piece 51. FIG. It is a figure which shows the state which the inclination part 66 slipped forward from the vertex of the convex part 58 from the state of FIG. It is a perspective view of the engagement piece 151 which is a modification. It is sectional drawing of the built-in stove 100 which is a modification.

  Hereinafter, the built-in stove 1 which is one Embodiment of this invention is demonstrated based on drawing. These drawings are used to explain technical features that can be adopted by the present invention. The structure of the apparatus described below is merely an illustrative example, and is not intended to be limited to that unless otherwise specified.

  First, the structure of the built-in stove 1 will be described. As shown in FIG. 1, the built-in stove 1 includes a substantially rectangular parallelepiped tool 2. A top plate 4 is attached to the upper part of the instrument 2. A right burner 5 is provided on the right front side of the top plate 4. A left burner 7 is provided on the left front side of the top plate 4. A middle burner 6 for simmering fire is provided on the back side of the substantially center between the right burner 5 and the left burner 7. A plurality of exhaust holes 9 are provided on the rear end side of the top plate 4. The exhaust hole 9 has a slit shape. The exhaust hole 9 communicates with a grill box (not shown) provided in the appliance 2.

  A grill opening 12 is provided in the center of the front of the appliance 2. The grille opening 12 has a rectangular shape when viewed from the front. The grill opening 12 communicates with the grill storage. A grill door 13 is provided in the grill opening 12 so that it can be pulled out. The grill door 13 is a plate member having a rectangular shape when viewed from the front. When the grill door 13 is pulled out to the near side, a tray (not shown) connected to the lower back of the grill door 13 can be taken out. A grill window 13 </ b> A is provided in the upper half of the front surface of the grill door 13. A handle 13B is provided below the grill window 13A.

  On the right side of the grille opening 12, ignition switches 15 and 16 are provided. The ignition switch 15 is pressed to ignite the right burner 5. The ignition switch 16 is pressed to ignite a grill burner (not shown) in the grill cabinet. On the left side of the grill opening 12, ignition switches 17 and 18 are provided, respectively. The ignition switch 17 is pressed to ignite the middle burner 6. The ignition switch 18 is pressed to ignite the left burner 7.

  A battery box 19 is provided below the ignition switches 15 and 16. The battery box 19 stores a dry battery that supplies power to the built-in stove 1. An operation panel 20 is rotatably provided below the ignition switches 17 and 18. The operation panel 20 is an operation device for operating the built-in stove 1. The operation panel 20 is accommodated in the instrument 2 when not in use. When in use, the stored operation panel 20 is pressed. Then, the operation panel 20 is turned to the outside of the instrument 2 and can be operated.

  Next, the structure of the instrument 2 will be described. As shown in FIG. 2, the instrument 2 is a substantially rectangular parallelepiped case. A case opening 25 is provided in the upper part of the instrument 2. On the outer periphery of the case opening 25, an engagement flange portion 27 projects outward. The engaging flange portion 27 engages with a counter hole of a counter top (not shown). A substantially L-shaped insertion piece 29 (see FIG. 5) is provided at the outer peripheral end of the engagement flange portion 27. An annular packing 70 is attached to the insertion piece 29.

  The packing 70 is made of resin. The packing 70 includes a packing body 71 and an outer peripheral flange portion 72. The packing main body 71 is a portion that is externally fitted to the outer peripheral edge of the engagement flange portion 27. The outer peripheral flange portion 72 is a portion projecting horizontally from the outer periphery of the lower end of the packing body 71. As shown in FIG. 5, the packing main body 71 includes an insertion slit 75 on the inner side. The insertion slit 75 is formed continuously throughout the inner circumference of the packing 70. The insertion piece 29 of the engagement flange portion 27 is inserted into the insertion slit 75, and the packing 70 is attached to the outer peripheral edge of the engagement flange portion 27. On the outer peripheral flange portion 72, a curl portion 65, which will be described later, formed on the lower outer periphery of the top plate 4 is placed (see FIG. 5).

  As shown in FIG. 2, one or two or more engagement pieces 51 are provided on each of the left and right sides of the front flange portion 28 corresponding to the front wall 21 of the instrument 2 in the engagement flange portion 27. ing. These engaging pieces 51 engage with curled portions 65 formed at the lower outer periphery of the top plate 4.

  The structure of the engagement piece 51 will be described. As shown in FIG. 3, the engagement piece 51 is formed by bending a rectangular metal plate. The engagement piece 51 includes a first extension portion 55 and a second extension portion 56. The first extending portion 55 is a plate portion that extends upward from the upper surface of the front flange portion 28. The second extension 56 is bent forward from the upper end of the first extension 55 and extends horizontally. A groove portion 57 is formed at the approximate center of the front end portion of the second extension portion 56 in the left-right direction. The groove part 57 is a groove curved in a substantially U shape toward the rear. A semi-cylindrical convex portion 58 that protrudes upward in an arc shape when the engagement piece 51 is viewed from the front is provided inside the groove portion 57. The 2nd extension part 56 engages from the upper part with respect to the front-end | tip part 68 of the curl part 65 formed in the outer periphery lower part of the top plate 4 (refer FIG. 5).

  Then, brackets (not shown) are provided projecting inward at the left and right corners on the back side of the case opening 25 of the instrument 2. Each bracket has a screw hole (not shown) for fixing the top plate 4. Further, a burner bracket (not shown) for supporting the right burners 7 to 7 is provided in the instrument 2. Each burner bracket is also formed with a screw hole (not shown) for fixing the top plate 4. The screw holes provided in the bracket and the burner bracket are an example of the “fixed portion” in the present invention.

  Next, the structure of the top plate 4 will be described. As shown in FIG. 1, the top plate 4 is a plate member having a rectangular shape in plan view. An outer peripheral raised portion 60 is formed on the outer peripheral edge of the top plate 4. A central recess 4 </ b> A that is shallowly drawn is provided inside the outer peripheral bulge 60. A burner opening 31 is provided on the right front side of the central recess 4A. A burner opening 33 is provided on the left front side of the central recess 4A. A burner opening 32 is provided in the center rear side between the burner openings 31 and 33. The burner opening 31 is in a position corresponding to the right burner. The burner opening 32 is located at a position corresponding to the middle burner 6. The burner opening 33 is located at a position corresponding to the left burner 7. The burner openings 31 to 33 are substantially circular.

  Further, a ring-shaped recess 31 </ b> A is provided around the burner opening 31. Around the burner opening 32, a ring-shaped recess 32A is provided. Around the burner opening 33, a ring-shaped recess 33A is provided. The recesses 31A to 33A are one step lower than the central recess 4A. A pair of through holes 35 are provided on the bottom surface of the recess 31A. A pair of through holes 36 are provided in the bottom surface of the recess 32A. A pair of through holes 37 are provided on the bottom surface of the recess 33A. These through holes 35 to 37 respectively correspond to the screw holes of the burner bracket provided in the instrument 2. Screws 91 are fastened from the through holes 35 to 37 to the screw holes of the burner bracket. Therefore, the central part of the top plate 4 can be fixed to the upper part of the instrument 2.

  Further, through holes 38 and 39 corresponding to the brackets provided in the left and right rear portions of the case opening 25 of the instrument 2 are provided in the left and right rear corner portions of the central recess 4A. Screws 92 are fastened from the through holes 38 and 39 to the screw holes of the bracket. Therefore, the rear part of the top plate 4 can be fixed to the upper part of the instrument 2.

  Further, as shown in FIG. 4, a curled portion 65 is provided at the lower portion of the outer peripheral raised portion 60 on the front end side of the top plate 4. The curled portion 65 is formed so as to wind the outer peripheral edge of the top plate 4 inward and downward. An inclined portion 66 is provided in the vicinity of the front end portion 68 of the curled portion 65. The inclined portion 66 is inclined obliquely upward from the outer side to the inner side (front to rear) of the top plate 4 toward the lower surface of the top plate 4.

  Next, the assembly work of the built-in stove 1 will be described. First, the engagement flange portion 27 of the instrument 2 shown in FIG. 2 is engaged with the peripheral edge of the counter hole provided in the counter top, and the instrument 2 is mounted in a state of being dropped into the counter hole. Next, the front end portion 68 of the curled portion 65 formed at the lower portion on the front end side of the top plate 4 is engaged with the second extending portion 56 at the front end of the engagement piece 51 from below. Then, as shown in FIG. 5, the curled portion 65 is accommodated between the second extending portion 56 and the outer peripheral flange portion 72 of the packing 70 positioned below the second extending portion 56. Therefore, the engagement piece 51 can be engaged with the region along the front end portion of the top plate 4 among the curled portions 65 of the top plate 4 from above.

  Next, screws 91 are inserted into the corresponding screw holes formed in the bracket on the side of the instrument 2 from the pair of left and right through holes 38 and 39 located at the left and right rear corners of the central recess 4A of the top plate 4. Each is concluded. Furthermore, screws 92 are respectively fastened from the through holes 35 to 37 formed in the central recess 4A of the top plate 4 to the corresponding screw holes formed in the respective burner brackets on the instrument 2 side. Thereby, the top plate 4 is fixed to the upper part of the instrument 2, and the assembly work of the built-in stove 1 is completed.

  Next, a case where the curled portion 65 of the top plate 4 is not normally engaged with the engagement piece 51 during the assembly operation will be described. As shown in FIG. 6, the distal end portion 68 of the curled portion 65 of the top plate 4 is not engaged with the second extending portion 56 at the distal end of the engagement piece 51. In this case, the curled portion 65 of the top plate 4 is placed on the top of the convex portion 58 provided on the second extending portion 56 of the engagement piece 51. In this case, the front end side of the top plate 4 is lifted upward. Therefore, the top plate 4 is inclined and a large gap is formed between the top plate 4 and the packing 70 attached to the outer peripheral edge of the engagement flange portion 27 of the instrument 2. The operator can easily notice a large gap formed between the top plate 4 and the packing 70. Therefore, the operator can easily determine from the appearance that the top plate 4 is incorrectly assembled to the instrument 2.

  However, it is assumed that some workers do not notice the gap formed between the top plate 4 and the packing 70. For example, as shown in FIG. 6, the top plate 4 is not displaced in the horizontal direction with respect to the upper portion of the instrument 2 in a state where the curled portion 65 of the top plate 4 is not normally engaged with the engagement piece 51. When arranged, the outer portion of the inclined portion 66 of the curled portion 65 is in contact with the apex of the convex portion 58 of the engaging piece 51. Since the operator does not notice the incorrect assembly, in order to fix the top plate 4 to the instrument 2, the top plate 4 is pushed downward and the screws 91 and 92 are forced to be fastened.

  Here, as described above, the inclined portion 66 is inclined obliquely upward from the outer side to the inner side of the top plate 4 toward the lower surface of the top plate 4. Therefore, as shown in FIGS. 6 and 7, the top plate 4 slides forward along the inclined portion 66 of the curled portion 65 that contacts the apex of the convex portion 58. At this time, as shown in FIG. 7, the top plate 4 is further displaced forward with respect to the instrument 2. That is, the screw holes provided in the bracket and the burner bracket provided in the instrument 2 and the positions of the through holes 35 to 39 provided in the top plate 4 are displaced from each other in the horizontal direction. Cannot conclude. Therefore, the operator can surely confirm that the top plate 4 is incorrectly assembled to the instrument 2.

  As described above, in the built-in stove 1 according to the present embodiment, the curled portion 65 is formed in the lower part on the front end side of the top plate 4. The curled portion 65 is formed so as to wind the outer peripheral edge of the top plate 4 inward and downward. A plurality of engagement pieces 51 are provided on the front flange portion 28 of the instrument 2. The engagement piece 51 includes a first extension portion 55 and a second extension portion 56. The first extending portion 55 is a plate portion that stands up and down. The second extending portion 56 is bent horizontally from the upper end of the first extending portion 55 with respect to the front. A groove portion 57 that is curved in a substantially U shape toward the rear is formed at the substantially center in the left-right direction of the front end portion of the second extension portion 56. Inside the groove portion 57, a semi-cylindrical convex portion 58 protruding in an arc shape upward is provided.

  The second extending portion 56 engages from the upper side with a tip end portion 68 of a curled portion 65 formed at the lower portion on the front end side of the top plate 4. When the distal end portion 68 of the curled portion 65 of the top plate 4 is not engaged with the second extending portion 56 at the distal end of the engaging piece 51, the curled portion 65 of the top plate 4 is moved to the second extending portion of the engaging piece 51. It will be in the state mounted on the top of the convex part 58 provided in the protrusion part 56. FIG. In this case, since a gap is formed between the top plate 4 and the packing 70 attached to the engagement flange portion 27 of the instrument 2, the front end side of the top plate 4 is in a floating state. Therefore, the operator can notice that the front end side of the top plate 4 is floating, so that the erroneous assembly of the top plate 4 can be easily confirmed only by the appearance.

  In the present embodiment, in particular, when the operator pushes the top plate 4 downward while the curled portion 65 of the top plate 4 is not normally engaged with the engagement piece 51, the convexity of the second extending portion 56 is increased. The inclined portion 66 of the curled portion 65 slides with respect to the portion 58. Therefore, since the top plate 4 is displaced with respect to the instrument 2, the operator can easily confirm that the assembly is incorrect.

  In the present embodiment, in particular, when the top plate 4 is to be attached to the upper part of the instrument 2 in a state where the curled portion 65 of the top plate 4 is not engaged with the second extending portion 56, the outer side of the inclined portion 66. Is in contact with the apex of the convex portion 58 of the second extending portion 56. When the operator pushes the top plate 4 downward in this state, the inclined portion 66 slides down with respect to the apex of the convex portion 58. As a result, the operator knows that the assembly was incorrect, so that the curled portion 65 of the top plate 4 can be engaged with the second extending portion 56.

  In the present embodiment, in particular, when the operator pushes the top plate 4 downward in a state where the curl portion 65 of the top plate 4 is not normally engaged with the second extension portion 56, the second extension portion 56 is provided. The inclined portion 66 of the curled portion 65 is slid with respect to the convex portion 58. Therefore, since the top plate 4 is displaced with respect to the instrument 2, the screw holes provided in the bracket on the instrument 2 side and the burner bracket and the positions of the through holes 35 to 39 provided on the top plate 4 side are determined. Since they are shifted from each other, the screws 91 and 92 cannot be fastened. Therefore, the operator can easily confirm that the top plate 4 is misassembled with respect to the instrument 2 and can reliably prevent the top plate 2 from being fixed to the instrument 2 in a misassembled state. The screws 91 and 92 are examples of the “fixing portion” of the present invention.

  In this embodiment, in particular, since the convex portion 58 is a curved surface, when the top plate 4 is pushed downward in a state where the curled portion 65 of the top plate 4 is not normally engaged with the second extending portion 56, The curled portion 65 of the top plate 4 can slide smoothly with respect to the convex portion 58. Thereby, since the top plate 4 shifts | deviates with respect to the instrument 2, it can confirm easily that it is an incorrect assembly | attachment.

  In addition, this invention is not limited to the said embodiment, A various change is possible. For example, the convex portion 58 of the engagement piece 51 has a semi-cylindrical shape protruding upward provided inside the groove portion 57 provided in the second extending portion 56. For example, you may provide the convex part which protruded in circular arc shape on the upper surface of the flat 2nd extension part 56. As shown in FIG.

  Further, like the engagement piece 151 which is a modified example shown in FIG. 8, the front end surface 159 of the convex portion 158 having a semi-cylindrical shape may be a gently inclined surface. For example, when the front end portion 68 of the curled portion 65 of the top plate 4 shown in FIG. 4 is not engaged with the second extending portion 56 at the front end of the engagement piece 151, the curled portion 65 of the top plate 4 is engaged. It will be in the state mounted on the top of the convex part 158 provided in the 2nd extension part 56 of the piece 151. FIG. In this state, when the top plate 4 is to be attached to the upper portion of the instrument 2, the outer surface of the inclined portion 66 contacts the apex of the convex portion 158 of the second extending portion 56. When the operator pushes the top plate 4 downward in this state, the inclined portion 66 can slide gently along the front end surface 159 from the apex of the convex portion 158.

  In the above embodiment, one or more engaging pieces 51 are provided on each of the left and right sides of the front flange portion 28 corresponding to the front wall 21 of the instrument 2. The number is not limited. Further, the engagement piece 51 may be provided on the engagement flange portion 27 other than the front flange portion 28.

  Moreover, although the said embodiment provided the some engagement piece 51 in the instrument 2 side, you may provide an engagement piece in the top plate side, for example. For example, a built-in stove 100 that is a modification shown in FIG. 9 includes an instrument 200 and a top plate 110. The instrument 200 is a substantially rectangular parallelepiped case. A case opening 201 is provided in the upper part of the instrument 200. An engaging extension 202 is provided at the edge of the case opening 201. The engagement extension 202 extends substantially horizontally toward the inside of the case opening 201. A top plate side engagement piece 120 is provided on the lower surface of the top plate 110. The top plate side engaging piece 120 includes a third extending portion 125 and a fourth extending portion 126. The third extending portion 125 is bent from the front end portion of the support plate 102 fixed to the lower surface of the top plate 110 and extends vertically downward. The fourth extending portion 126 is bent horizontally from the lower end of the third extending portion 125 with respect to the front. A groove portion 127 that is curved in a substantially U shape toward the rear is formed at a substantially horizontal center of the front end portion of the fourth extension portion 126. Inside the groove portion 127, a semi-cylindrical convex portion 128 that protrudes downward in an arc shape is provided. The fourth extension part 126 engages with the engagement extension part 202 of the instrument 200 from below.

  For example, when the fourth extension 126 at the tip of the top plate side engagement piece 120 is not engaged with the engagement extension portion 202 of the instrument 200 from below, the top plate side engagement piece 120. The convex portion 128 is placed on the upper surface of the engagement extending portion 202 of the instrument 200. In this case, the front end side of the top plate 110 is lifted upward as in the above embodiment. Therefore, the top plate 110 is inclined, and a large gap is formed between the top plate 110 and the upper part of the instrument 200. The operator can easily notice a large gap formed between the top plate 110 and the upper part of the instrument 200. Therefore, the operator can easily determine from the appearance that the top board 110 is erroneously assembled to the instrument 200.

  Moreover, in the said embodiment, although the built-in stove 1 was demonstrated as an example of a heating cooker, what is necessary is just to attach a top plate to an instrument, for example, a normal stove may be sufficient and heating cookers other than a stove may be sufficient.

DESCRIPTION OF SYMBOLS 1 Built-in stove 2 Instrument 4 Top plate 25 Case opening part 27 Engagement flange part 28 Front flange part 31A Recessed part 35-37, 38,39 Through-hole 51 Engagement piece 55 1st extension part 56 2nd extension part 57 Groove part 58 convex portion 65 curled portion 66 inclined portion 68 tip portion 91, 92 screw 100 built-in stove 110 top plate 120 top plate side engaging piece 125 third extending portion 126 fourth extending portion 127 groove portion 128 convex portion 151 engaging piece 200 Instrument 201 Case opening 202 Engagement extension

Claims (6)

An instrument with an open top;
An engagement bent portion formed by bending an outer peripheral edge inward and downward, and a top plate attached to an upper portion of the instrument so as to cover the opening of the instrument;
A cooking device provided with an appliance side engagement piece provided at an edge of the opening of the appliance and engaging with the engagement bent portion of the top plate;
The instrument side engaging piece is:
A first extension extending to above the edge;
A second extending portion that extends from the upper portion of the first extending portion in a direction away from the instrument and engages with a distal end portion of the engaging bent portion from above;
The cooking device according to claim 1, wherein the second extending portion has a convex shape protruding upward.   The inclined part which inclines diagonally upwards from the outer side of the said top plate toward the inner side toward the lower surface of the said top plate is provided in the front-end | tip part of the said engagement bending part. Cooking cooker.   In the state where the top plate is arranged without a horizontal displacement with respect to the upper part of the instrument, and the second extension part of the instrument side engagement piece is not engaged with the engagement bent part, The cooking device according to claim 2, wherein an outer surface of the inclined portion is disposed on the apex of the convex shape of the second extending portion.   The cooking device according to claim 2, wherein the top plate is provided with a fixing portion for fixing to the fixed portion provided in the appliance or a component mounted in the appliance. .   The cooking device according to claim 1, wherein the convex shape is a curved surface shape. An instrument having an engaging extension that is open at the top and extends substantially horizontally from the edge of the opening toward the inside of the opening;
A top plate attached to the upper part of the instrument so as to cover the opening of the instrument;
A cooking device comprising a top plate side engagement piece provided on an outer peripheral portion of a lower surface of the top plate and engaged with the engagement extension portion of the top plate;
The top plate side engaging piece is
A third extending part extending to the lower part of the outer peripheral part of the lower surface;
A fourth extension part that is folded back substantially horizontally from the lower end part of the third extension part and extends in a direction away from the top plate, and engages with the engagement extension part from below;
The cooking device according to claim 4, wherein the fourth extending portion has a convex shape protruding downward.

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