JPS62410B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric cooking plate. Electric cooking plates are generally integrated into the mounting plate of a range or similar, with a liquid-tight lip on the mounting plate surrounding the mounting opening - this prevents spilled liquids from flowing through the face of the range.
has a fairly large height exceeding 20 mm. The lamella ring surrounding the cooking plate has a steeply sloped outer part, the lower edge of which rests on a support shoulder. The cooking surface is therefore located at a very high height above the mounting plate, so that it is almost impossible to slide the cooking vessel without lifting it from or onto the cooking plate. .

The purpose of the present invention is to provide a flat cooking container on the range.
To provide an electric cooking plate that can be easily slid and moved without impairing its passage. Furthermore, the edge area of the cooking plate can be easily cleaned.

The above object of the invention is achieved by constructing the electric cooking plate as defined in claim 1. Due to the fact that the sheet metal ring extends almost to the cooking surface, the distance between the cooking surface and the plane of the installation plate can be made very small without compromising the safety of the passage. A secure seating is achieved by fixing on the conical surface. Furthermore, there is no need for a large support flange to grip the thin plate ring from above, as in the case described in Publication No. 17194/1983. Such flanges are very thin, 2 millimeters or less if the spacing between the sheet ring and the cooking surface is small, and can break or rust and fall off. On the other hand, the protrusions with a common function, which do not need to take over the entire function of support, can cause the thin plate ring to creep not slowly but greatly when there is a difference in thermal expansion between the thin plate ring and the cooking plate body. Since it acts to creep more than the cooking surface itself, the cooking vessel above it lies on the thin plate ring and does not touch the cooking surface at all, so there is no longer any contact heat transfer. The illustrated embodiments of the invention will now be described in detail.

The electric cooking plate 11 shown in FIG. 1 has a cooking plate body 12 made of cast iron. It has spiral ribs 15 arranged on the sides, on which the cooking container can be placed, and in the intermediate space 16 between the ribs there are provided insulating material. A spiral heating wire 17 is located.

The electric cooking plate 11 is inserted into the opening 21 of the mounting plate (adapter plate) 22,
This mounting plate constitutes the upper cover plate of a thin plate of an electric range or a mounting tray, which range has a plurality of cooking plates and is installed on the working plate of the cooking furniture. The opening 21 is delimited by a liquid-tight edge 23, that is to say an edge which is raised upwardly and is constituted by a mounting plate 22. In particular, a sheet ring 30 consisting of a stainless steel sheet approximately 0.4 mm thick is pressed with its conical inner part 31 onto a corresponding conical surface 19 of the cooking plate body, which is also conical. The corresponding conical surface 19 is conically widened upwards by 10° to 20° and forms a shoulder 20.
The thin plate ring 30 has a conical inner part 31 crimped thereon as in the embodiment shown in FIGS. In the case of FIG. 1, the outer portion 34 covers the liquid-proof edge 23 from above, and in the case of FIGS. It is placed,
A cooking plate is supported. Since the cooking plate does not have an outer flange, the intermediate part 33 is located very slightly (1 to 2 millimeters) below the level of the cooking surface 13. It is not made very thin so that it does not bend or corrode.

As shown in FIG. 2, a plurality of protrusions or ribs 50 are formed on the periphery of the cooking plate below the corresponding conical surface 19, and the thin plate ring is pushed up from below so as to pass through these ribs. A lamella ring is locked behind the upper end of the rib. By being pushed open, the thin plate ring is slightly expanded and rests against the corresponding conical surface 19 under pretension, but remains sealed against the cooking plate body 12. Due to the small cone angle, this connection is self-locking, so that the ribs 50 serve only to hold the sheet ring. The magnitude of the pretension is as follows: the difference in thermal expansion between the thin plate ring and the cooking plate, which may occur depending on the case, is resiliently accommodated, and gaps are formed during use, and dirt can enter into the gaps and The size is determined so that it will not gradually expand.

The structural height is very low and is only slightly higher than the height of the sheet metal ring. The liquid-proof rim 23 reaches almost the height of the cooking surface, and although the height of the thin plate ring is quite high, the overall structural height is small.

FIG. 3 shows a similar embodiment in which the corresponding conical surface 19a and the inner portion 31a are formed with a somewhat more steep slope. A corresponding bend 51a of the inner part, which is bent inward to the main body, engages in a groove 53 in the cooking plate body, and the thin plate ring 30a is firmly held by this corresponding bend 51a.

FIG. 4 shows the inner portion 31 of the thin plate ring 30b.
A conventional cooking plate 11f is shown having a mating conical surface 19b and an outer flange 18f engaged by b. The cylindrical portion 57 corresponds to the corresponding bending portion 5
1b and a shoulder 20 behind this corresponding bend.
b is engaged. Attachment is carried out by pushing out the thin plate ring from below and deforming it to form the inner part 31b, or by pushing out the finished inner part 31b from above and deforming the corresponding bend 51b or the corresponding individual flanges. It is done by doing.

The embodiment shown in FIG. 5 is similar to the embodiment shown in FIG. 4, except that the corresponding conical surface 19c tapers upward in a conical manner. The thin plate ring 30c is pretensioned and pressed from above and held by bending the ends into corresponding bends.

In the embodiment shown in FIG.
is attached to the cooking plate body in the same way as in the embodiment shown in FIGS. 1 and 2. In this case as well, the cooking plate does not have a flange that engages the cast thin plate ring from above, as in the case of FIG. 1, but it has a small shoulder 20d that is very short and rounded. , this shoulder covers only the rounded portion between the outer portion 34d and the inner portion 31d which directly contacts the inner portion 31d and descends flatly outwards.

The mounting plate 22 in FIG. 1 has its rounded part 45 transitioning into an inclined inwardly rising liquid-proof edge 23, and, as in the embodiment shown in FIG. It does not come into contact with the liquid-proof edge 23. In this case, the cooking plate is supported on the cooking plate body by a support (not shown). In the embodiment of FIG. 6, the mounting plate 22d has an inwardly directed step 58 behind the radius 45a, to which a flat liquid-tight lip 23d is connected. As a result, the outer portion 34d is
It transitions to the rounded portion 45a with a smooth line interrupted only by slits.

[Brief explanation of the drawing]

1 and 3 to 6 are cross-sectional views showing details of the edge of the electric cooking plate and how this edge is incorporated into the range plate or mounting plate; FIG. 2 is the same as that of FIG. - Detailed cross-sectional view along the line. Symbols in the figure, 11... Electric cooking plate, 12...
...Cooking plate body, 13...Cooking surface, 19,1
9a, 19b, 19c, 19d...corresponding conical surfaces,
20, 20a, 20b, 20c, 20d...shoulder part, 21, 21a, 21b, 21c, 21d...
Openings, 22, 22a, 22b, 22c, 22d...
...Mounting plate, 30, 30a, 30b, 30
c, 30d... thin plate ring, 31, 31a, 31
b, 31c, 31d...inner part, 33...middle part, 34, 34d...outer part, 51, 51
a, 51b, 51c, 51d...Corresponding bent portions.

Claims (1)

[Claims] 1 Essentially flat cooking surface 13 and thin plate ring 3
0, 30a, 30b, 30c, 30d, a mounting plate 22 having a cooking plate body 12,
Openings 21, 2 of 22a, 22b, 22c, 22d
1a, 21b, 21c, 21d, the thin plate ring 30, 3
0a, 30b, 30c, 30d surround the cooking plate main body 12, and the outer parts 34, 34 of the thin plate ring
a, 34b, 34c, and 34d are thin rings 30, 30 of the electric cooking plate that is directed downward and protrudes to the side of the cooking plate main body 12.
Outer portions 34, 3 of a, 30b, 30c, 30d
4a, 34b, 34c, and 34d are in contact with the cooking plate body directly below the upper edge of the cooking surface 13,
The thin plate ring has an inner portion 31, 31a, 31b, 31c, 31 which is at least partially conical.
d, and this inner part is the cooking plate body 12
Corresponding conical surfaces 19, 19a, 19b, 19c, 1
9d, and the cooking plate body 12 and/or the thin plate ring act together on the shoulder portion 2.
0, 20a, 20b, 20c, 20d and corresponding bent portions 51, 51a, 51b, 51c, 51d to prevent the ring from protruding higher than the plane of the cooking surface 13.