JPH0451735Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to an electric cooking device that removably supports a cooking plate on a support stand such as a hot plate.

(Prior Art) Conventionally, as shown in FIG. 6, a cooking plate 3 having a heater 1 and a heat shield plate 2 provided on its lower surface is removably supported on a support base 4 via legs 5. A hot plate having a structure in which the cooking plate 3 and the support base 4 are locked by a locking mechanism 6 is known. The locking mechanism 6 has a locking body receiving portion 7 fixed to the cooking plate 2 and an operating body 9 on one side rotatably supported by a support shaft 8 attached to the support base 4. A locking body 10 is supported by the support shaft 8 and has one end engaged with the locking body 10 and the other end engaged with the support base 4. It is composed of a tabular spring 11.

By the way, as shown in FIG. 7, three or four legs 5 were conventionally provided, but the legs 5 are equipped with heat shielding metal fittings 12 as shown in FIG. Since they are attached to the cooking plate 3 with screws 13 through the holes, if three or four are provided as described above, the number of parts will increase, and the number of assembly steps will increase.
The cost will be high.

(Problems to be Solved by the Invention) As described above, conventional electric cookers, such as hot plates, have three to four legs for supporting the cooking plate on the support stand in addition to the lock mechanism. Since there were multiple units installed, there was a problem of high costs.

The present invention was developed in consideration of the above circumstances, and in an electric cooker in which the cooking plate is removably supported on a support stand, the legs can be minimized by combining the locking mechanism with the function of supporting the cooking plate. The purpose of this is to reduce costs to two.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides an electric cooker in which a cooking plate is detachably supported on a support base via legs, and the cooking plate and the support base are locked by a locking mechanism. , the locking mechanism includes a locking body receiving portion provided on the cooking plate, and a locking body having an engaging portion removably engaged with the upper side of the locking body receiving portion, which is rotated on the support base. The locking body is moved in a direction in which the locking body is engaged with the locking body receiving portion by a spring that is freely provided and has one end engaged with the locking body and the other end elastically abutting against the cooking plate from below. The cooking plate is further provided with an abutting portion that abuts the engaging portion of the locking body from above.

(Function) In the electric cooker of the present invention, the cooking plate is supported on the support stand by the legs and the spring that resiliently contacts the cooking plate of the lock mechanism from below. At the same time, the engaging part of the locking body biased by the spring provided on the support base is engaged with the upper side of the locking body receiving part of the cooking plate, and the cooking plate and the support base are locked. be done.
For example, when a downward force is applied to the cooking plate, the abutting part of the cooking plate comes into contact with the engaging part of the locking body from above, and the locking body receives the load in addition to the spring. .

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

Reference numeral 21 denotes a dish-shaped cooking plate with a cooking surface on the top for grilling, boiling, etc. This cooking plate 21 is made of cast aluminum, etc., and has fluororesin processing applied to the inner and outer surfaces to prevent food from sticking. It is becoming harder and easier to maintain. Further, a bulge 22 is integrally formed on the lower surface of the cooking plate 21 and has a substantially U-shaped cross section. to heat the cooking plate 21. Further, a heat shield plate 24 made of a galvanized steel plate, an aluminized steel plate, etc. is provided at the bottom of the cooking plate 21 and covers the bottom thereof.
is attached with screws 25 or the like.

Further, two legs 26 are attached to the peripheral edge of the lower surface of the cooking plate 21 with screws 28 via heat shielding metal fittings 27, respectively. As shown in FIG. 5, these legs 26 are arranged at positions where the angle between the center of the cooking plate 21 is approximately 120°.

Reference numeral 31 denotes a frame-shaped support base made of synthetic resin that covers the bottom and side parts of the outer periphery of the cooking plate 21 and supports the cooking plate 21 in a removable manner. 32, and a plurality of main body legs 33 on the lower surface of the bottom.
is provided, and the cooking plate 21 is provided on the upper surface of the bottom.
A leg receiving portion 34 that fits and supports the leg body 26 is formed.

Next, the locking mechanism 41 that locks the cooking plate 21 and the support base 31 together will be explained.

An engaging body 42 projecting outward is attached to one lower portion of the cooking plate 21 with screws 43 or the like. The engaging body 42 is provided with a connector 44 for connecting a power cord therein, and also serves as a protector for the terminal portion thereof.

An engagement hole 45 into which the engagement body 42 of the cooking plate 21 is inserted and engaged is formed on one side of the support base 31 .

A locking body receiving portion 46 is attached to the other lower portion of the cooking plate 21 . This locking body receiving portion 46 has a tapered guide surface 47 formed at its tip, a hook portion 48 on the upper surface, and a spring receiving portion 49 on the lower surface.
is formed. Then, the locking body receiving portion 46
As shown in FIG. 5, the angle between the center of the cooking plate 21 and the legs 26 is approximately
It is placed at an angle of 120°.

Further, as shown in FIG. 4, a window hole 50 is formed on the other side of the support base 31, and a recess 51 is formed on the inner bottom of this window hole 50.
Approximately U-shaped bearing recesses 52 are provided opposite to each other on both sides of the bearing recess 52, and approximately inverted L-shaped spring locking portions 53 are provided adjacent to the inner sides of the bearing recesses 52 on both sides. There is.

Further, both sides of a substantially U-shaped locking body 56 made of a metal wire and having an engaging portion 55 that engages with the locking body receiving portion 46 of the cooking plate 21 are wound around the support shaft 54. An operating body 58 is fixed to the extending portions 57 on both sides of the stopper body 56 . Further, both sides of a substantially U-shaped spring 59 made of a spring wire are wound around the support shaft 54, and extension portions 60 on both sides of the spring 59 are wound.
is attached to the operating body 58.

Both ends of the support shaft 54 are fitted into and supported by the bearing recesses 52 on both sides, the operating body 58 protrudes from the window hole 50, and both sides of the spring 59 are engaged with the spring locking parts 53, so that the spring 59 The operating body 58 is brought into contact with the upper side of the window hole 50 by the force 59, and the support shaft 54 is always pressed downward.

Further, the cooking plate 21 is formed with a protruding contact portion 61 whose lower surface faces the hook portion 48 of the locking body receiving portion 46 with a small gap therebetween.

Then, when attaching the cooking plate 21 to the support stand 31, insert one of the engaging bodies 42 of the cooking plate 21 into the engagement hole 45 of the support stand 31, and then attach the cooking plate 21 to the support stand 31.
1, the other locking body receiving part 46 of the cooking plate 21 bends the locking body 56 to some extent through its tapered guide surface 47, and the upper end of the engaging part 55 is moved to the hooking part 48. The cooking plate 21 is guided upward and is locked to the support base 31. At the same time, each leg 26 of the cooking plate 21 is fitted into each leg receiving part 34 of the support base 31, and the end edge of the spring 59 of the locking mechanism 41 opposite to the extending part 60 is connected to the locking body receiving part 34. The cooking plate 21 is supported on the support base 31 by elastically abutting the spring receiving portion 49 on the lower surface of the portion 46 from below. In addition, in this state, the spring 59 urges the locking body 56 inward, so that the engaging portion 55 of the locking body 56 and the locking body receiving portion 4
6 in an engaged state.

Further, when no external force is applied to the cooking plate 21 with the cooking plate 21 mounted on the support base 31 in this manner, the engaging portion 55 of the locking body 56 is attached to the abutting portion of the cooking plate 21. The lower surfaces of 61 are opposed from above with a small gap of about 0.5 mm, for example.

When a force larger than the pushing up force of the spring 59 acts to push down the cooking plate 21, the lower surface of the contact portion 61 of the cooking plate 21 is locked when the cooking plate 21 has slightly lowered. The cooking plate 21 is brought into contact with the engaging portion 55 of the body 56 from above, and in this state, the cooking plate 21
is supported. In other words, even if a downward force is applied to the cooking plate 21, the cooking plate 21 will not sink, and no excessive load will be placed on the spring 59.

Further, when removing the cooking plate 21 from the support base 31, by pushing the operating body 58 downward, the locking body 56 rotates outward and comes off from the locking body receiving part 46.
The force of the spring 59 lifts one side of the cooking plate 21 by about 15 mm, for example, so that the cooking plate 21 can be easily removed.

As described above, since the locking mechanism 41 also has the function of supporting the cooking plate 21, the number of legs 26 supporting the cooking plate 21 on the support base 31 can be reduced to two.

Therefore, the number of parts is reduced, the number of assembly steps is reduced, and costs are also reduced.

[Effect of idea]

According to the present invention, the spring that biases the locking body of the locking mechanism provided on the support base resiliently contacts the cooking plate from below, and furthermore, at least a downward force is applied to the cooking plate. In this case, since the abutting part of the cooking plate is brought into contact with the engaging part of the locking body, the locking mechanism can also have the function of supporting the cooking plate, and therefore the cooking plate can be held on the support stand. The number of supporting legs can be reduced to a minimum of two, and costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of Fig. 3 showing an embodiment of the electric cooking device of the present invention, Fig. 2 is a cross-sectional view of Fig. 3, Fig. 3 is a perspective view thereof, and Fig. 4 is a cross-sectional view of Fig. 3. FIG. 5 is a perspective view of the vicinity of the lock mechanism, FIG. 5 is a bottom view of the cooking plate, FIG. 6 is a sectional view showing an example of a conventional electric cooking device, and FIG. 7 is a bottom view of the cooking plate. 21... cooking plate, 26... leg body, 31... support stand, 41... lock mechanism, 46... locking body receiver,
55... Engaging portion, 56... Locking body, 59... Spring, 61... Contact portion.

Claims (1)

[Claims for Utility Model Registration] Electric cooking comprising a cooking board, a support stand that removably supports the cooking board via legs, and a locking mechanism that locks the support stand and the cooking board. In the cooker, the locking mechanism includes a locking body receiving part provided on the cooking plate and a locking body rotatably provided on the support base and detachably engaged with the upper side of the locking body receiving part. a locking body having a mating portion; one end is engaged with the locking body, and the other end is elastically abutted against the cooking plate from below to engage the locking body with the locking body receiving portion; An electric cooking device comprising: a spring that biases the cooking plate in the direction; and the cooking plate has an abutting portion that abuts the engaging portion of the locking body from above.