Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Reexamination Certificate
1999-11-24
2001-03-27
Paik, Sang (Department: 3742)
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
Reexamination Certificate
active
06207934
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a cook top with a cook top panel, in particular a cook top panel made of a glass ceramic, which is secured on a metallic, single-part installation frame. The side walls of the frame extend essentially perpendicularly to the cook top panel and the frame further has, on a base side, an installation shoulder which extends parallel to the cook top panel, at a spacing from the cook top panel. The installation shoulder surrounds a large-surface-area base opening of the installation frame and in which there are provided installation openings for securing components of the cook top. The invention further relates to a corresponding production process.
Such a cook top is known from Published, Non-Prosecuted German Patent Application DE 295 13 246.9 A, and has a decorative frame which can be connected to the installation frame consisting, for example, of deep-drawn chromium-nickel steel. The installation frame, which serves as the basic part for assembly, is likewise produced by deep drawing and serves, inter alia, for fastening functional components of the cook top, for example residual-heat displays, retaining elements for heating elements and the like.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide a cook top with an installation frame formed by bending that overcome the above-mentioned disadvantages of the prior art devices and methods of this general type, in which the installation frame of the cooking cook top has a simplified construction.
With the foregoing and other objects in view there is provided, in accordance with the invention, a cook top, including:
a cook top panel; and
a metallic, single-piece installation frame receiving and securing the cook top panel, the metallic, single-piece installation frame having side walls extending substantially perpendicularly to the cook top panel and a base side, the base side having an installation shoulder extending parallel to the cook top panel, at a spacing from the cook top panel, the installation shoulder having component openings formed therein for securing other components, the base side has a large-surface-area base opening formed therein and delimited by the installation shoulder, the side walls are individual side-walls sections separate from one another and each being bent individually at right angles from the installation shoulder around a periphery.
This is achieved according to the invention, in the case of a cook top of the generic type, in that the installation frame is produced by bending. In this case, the side walls are configured as individual side-wall sections which are separate from one another and are each bent individually at right angles from the installation shoulder around the periphery. The process according to the invention is characterized in that the four side walls of the installation frame are each bent at right angles, as individual surfaces, out of a base panel of the frame and the base panel also forms the installation shoulder. The side walls are fixed to one another in respect to adjacent border regions. Installation openings are punched into the installation shoulder in order to secure components of the cook top, and a large-surface-area cutout is also punched out of the base panel. The critical advantage over the solution of the prior art is that, by bending, the size and the contours of the installation shoulder can easily be configured in a variable manner in production terms. This results in a higher level of variation in the size and position of the installation openings that can be disposed in the installation shoulder and/or components of the cook top. As a result of which a wide range of cook tops can be realized particularly easily and cost-effectively in production terms along with sufficient stability and a high degree of accuracy.
In order to stabilize and/or stiffen the installation frame, a decorative frame may be connected to the latter. Advantageously provided for this purpose in the side walls of the installation frame are installation openings for securing the decorative frame.
Particularly precise positioning is achieved in production if in each case two side walls of the installation frame are connected to one another by press joining or clinching in the bending tool in the corner region of the frame, at bent connecting lugs. Alternatively, the fixed connection may also be realized by welding.
In order to further increase the stability of the configuration, specific profile regions realized by bending are provided in the side walls of the installation frame.
It is also possible for the stability of the cook top to be increased further in that the cook top panel is adhesively bonded to the bent installation frame and/or the decorative frame via an adhesive connection. Therefore, the frame parts and the panel of the cook top can be fixed in a permanent manner once the lugs have been adjusted to the optimum installation position. Moreover, a corresponding adhesive bead may additionally protect the cook top against the penetration of liquid.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is illustrated and described herein as embodied in a cook top with an installation frame formed by bending, it is nevertheless not intended to be limited to the details shown, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
REFERENCES:
patent: 3870862 (1975-03-01), Doner
patent: 4363956 (1982-12-01), Scheidler et al.
patent: 4453533 (1984-06-01), Scheidler et al.
patent: 5317129 (1994-05-01), Taplan et al.
patent: 5571434 (1996-11-01), Cavener et al.
Brandl Georg
Huber Johann
Steiner Herbert
Theine Markus
BSH Bosch und Siemens Haushaltsgeraete GmbH
Greenberg Laurence A.
Lerner Herbert L.
Paik Sang
Stemer Werner H.
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