JPH0510905U - Top plate mounting structure for heat appliances - Google Patents

Abstract

(57) [Abstract] [Purpose] Even when the plate heater is heated, the flatness of the plate heater can be secured and the heat transfer efficiency can be kept constant, and further, the heat distribution can be made uniform and the life of the heater can be extended. You can A device main body 12 having a substantially concave cross section, a top plate 13 mounted on the upper part of the device main body 12, and a plurality of vertically elongated holes 20 formed in a peripheral surface portion 12a of the device main body 12, Each of the vertically long holes 2 is provided inside the instrument body 11.
A locking tool 30 having a substantially inverted L-shaped side surface is fixed to the locking tool 30 via a screw 19 that is screwed to 0. The top plate 13 is fixed to the instrument body 11 by engaging with the curved locking piece portion 13a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a top plate mounting structure for a heating device such as an electric hob, and particularly, a top plate for a heating device capable of easily and securely mounting the top plate by preventing distortion during heating of a plate heater. Regarding mounting structure.

[0002]

[Prior art and its problems]

 For example, taking a bite electric stove as an example to explain a conventional top plate mounting structure of a heating appliance, as shown in FIG. 7, a conventional electric stove 1 includes an appliance main body 2 having a substantially concave cross section, and A top plate 3 mounted on the upper part of the instrument body 2, a heater mounting hole 4 formed in the top plate 3, a plate heater 5 mounted on the heater mounting hole 4 from above, and this plate heater. 5, a heater cover 8 fixed by a nut 7 in the middle of a screw rod 6 hung from the lower face of the screw rod 5. The lower end of the screw rod 6 is fixed to the lower face of the instrument body 2 via a nut 9. It had been.

Therefore, in the above conventional electric stove 1, when the plate heater 5 is heated, the surface of the heater rises to about 500 ° C. The plate heater 5 is heated by the nut 9. Since the plate heater 5 is clamped and fixed to the fixture body 2, distortion of the plate heater 5 is promoted by the heating of the heater, and as a result, it is difficult to maintain the flatness of the plate heater 5 and the contact area with the pan bottom is significantly reduced. As a result, the heat transfer efficiency decreases, and the heat distribution of the entire heater becomes non-uniform, which shortens the life of the heater.

The present invention has been made in view of such a current situation, and an object thereof is to secure the flatness of the plate heater and keep the heat transfer efficiency constant even when the plate heater is heated. It is an object of the present invention to provide a top plate mounting structure for a heating device, which is capable of achieving uniform heat distribution and extending the life of the heater.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, in a ceiling plate mounting structure for a thermal appliance according to the present invention, an appliance body having a substantially concave cross section, a ceiling plate mounted on an upper portion of the appliance body, and the appliance body A plurality of vertically elongated holes are formed in the peripheral surface of the device, and a locking tool having a substantially inverted L-shaped side surface is fixed to the inside of the instrument body via screws screwed into the vertically elongated holes. The upper end of the locking member is brought into surface contact with and engages with the inclined surface of the bent locking piece of the outer peripheral edge of the top plate, so that the top plate is fixed to the instrument body. It is a feature.

[0006]

【Example】

 Hereinafter, the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

As shown in FIG. 1 and FIG. 2, a mouthpiece electric hob 10 according to this embodiment has an instrument main body 12 having a substantially concave cross section, and a top plate mounted on the upper portion of the instrument main body 12. 13, a heater mounting hole 14 formed in the top plate 13, a plate heater 15 mounted in the heater mounting hole 14 from above, and a lower end of a screw rod 16 suspended from the lower surface of the plate heater 15. The portion is composed of a heater cover 18 screwed through a nut 17.

The peripheral surface portion 12 a of the instrument body 12 is provided with a plurality of vertically elongated holes 20 into which screws 19 are slidably inserted in the vertical direction. In this embodiment, two vertical holes 20 are provided on each of the left and right side surfaces. Reference numeral 11 in the drawing is a flange portion extending horizontally outward from the upper end portion of the instrument body 12.

Further, the locking tool 30 is fixed to the inside of the instrument body 12 configured as described above through the screw 19 screwed into each of the vertically elongated holes 20.

As shown in FIG. 3, the locking tool 30 includes a vertical piece 32 having a screw hole 31 and an upper piece 33 extending horizontally from the upper end of the vertical piece 32. , And the side surface is formed in a substantially inverted L shape, and the tip portion 33a of the upper piece portion 33 is bent slightly obliquely downward.

On the other hand, the outer peripheral edge of the top plate 13 is bent to have a substantially inverted V-shaped cross section, and the inclined surface portion 13b of the bent locking piece portion 13a is inclined with respect to the tip portion 33a. It is configured to make surface contact with the surface portion 33b and to engage the horizontal piece portion 13c of the locking piece portion 13a with the end portion of the tip portion 33a.

Next, referring to FIGS. 4 to 6, a case of assembling the electric stove 10 configured as above will be described. First, the heater mounting hole 14 formed in the top plate 13 is After mounting the plate heater 15 from the upper part, the lower end of the screw rod 16 hung from the lower surface of the plate heater 15 is inserted into the insertion hole (not shown) of the heater cover 18 arranged on the back side of the top plate 13. No.) and fix it with the nut 17.

On the other hand, in the illustrated embodiment, four locking members 30 are arranged inside the device main body 12, and these locking devices 30 are screwed into the vertically elongated holes 20 of the device main body 12 by screws 19. Temporarily stop.

After the temporary fixing of the locking tool 30 is completed in this way, the top plate 13 to which the plate heater 15 is attached is set on the upper part of the instrument body 12, and then the screw 19 is inserted into the vertically elongated hole. When tightened while gradually lowering along 20, the upper piece 33 of the locking tool 30 rotates in the direction of contacting the flange 11 of the instrument body 12 as shown in FIG. After the tip portion 33a of the portion 33 contacts the flange portion 11 as shown in FIG. 5, when the screw 19 is further tightened, the vertical piece portion 32 of the locking tool 30 is pulled toward the inner wall of the instrument body 12. As a result, the inclined surface portion 13b of the locking piece portion 13a is in surface contact with the inclined surface portion 33b of the above-mentioned tip portion 33a, and it is possible to effectively prevent the locking tool 30 from rotating during the tightening work. Moreover, since the horizontal piece portion 13c of the locking piece portion 13a engages with the end portion of the tip portion 33a, the top plate 13 can be fixed to the instrument body 12 while being pressed downward.

In the above embodiment, the case where the present invention is applied to the top plate mounting structure of the one-bit electric stove has been described as an example, but the present invention is not limited to this, and for example, It can also be applied to the top plate mounting structure of other heat appliances such as double-ended electric stoves and gas stoves.

[0016]

[Effect of the device]

 As described above, the top plate mounting structure for a heating appliance according to the present invention has a plurality of vertically elongated holes formed in the peripheral surface of the appliance body, and the vertically elongated holes are screwed into the inside of the heating appliance body. A locking tool having a substantially inverted L-shaped side surface is fastened via a screw, and the top plate is fastened to the main body of the appliance by this locking tool. Since the plate is fixed to the main body of the heating device separately, the plate heater is not distorted by heating the heater, and as a result, the flatness of the plate heater can be maintained, so that it does not contact the bottom of the pan. Since the area is large and the heat transfer efficiency is good, the heat distribution of the entire heater is made uniform, so that the life of the heater can be greatly extended. Further, since the inclined surface portion of the locking piece portion is in surface contact with the inclined surface portion of the tip portion, the tightening work can be easily performed, and moreover, the horizontal piece portion of the locking piece portion has the above-mentioned tip portion. Since it engages with the end portion, it has a number of excellent effects such as being able to be fixed to the instrument body while the top plate is pressed downward.

[Brief description of drawings]

FIG. 1 is a sectional view of a mouthpiece electric hob to which the present invention is applied.

FIG. 2 is an exploded perspective view showing a mounting state of a device main body and a locking tool of the electric stove.

FIG. 3 is a perspective view of a locking tool.

FIG. 4 is a cross-sectional explanatory view showing an initial stage of a step of attaching the top plate by the locking tool.

FIG. 5 is a cross-sectional explanatory view showing an intermediate stage of a step of attaching the top plate by the locking tool.

FIG. 6 is an explanatory cross-sectional view showing the final stage of the step of attaching the top plate by the locking tool.

FIG. 7 is a cross-sectional view showing a top plate mounting structure in a conventional electric stove.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 electric hob 12 appliance main body 13 top plate 13a bent locking piece 13b inclined surface of bent locking piece 14 heater mounting hole 15 plate heater 16 screw rod 18 heater cover 19 screw 20 vertical elongated hole 30 locking tool 33a Top end of locking tool 33b Sloping surface of locking tool

Claims (1)

[Scope of utility model registration request] 1. An instrument body having a substantially concave cross-section, a top plate mounted on the upper part of the instrument body, a plurality of vertically elongated holes formed in the peripheral surface of the instrument body, and the inside of the instrument body. A locking tool having a substantially inverted L-shaped side surface is fixed to each of the vertical holes through a screw screwed in each vertically elongated hole. A top plate mounting structure for a heat appliance, characterized in that the top plate is fixed to the appliance body by surface-contacting and engaging with the inclined surface of the bent locking piece.