FI96060C - Device at a stove for mounting a heating unit - Google Patents

Description

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Device for installing a heating unit in the stove - Anordning vid en kokhäll för montering av en värmeen- het

The present invention relates to a device of the type set out in the preamble of claim 1.

In connection with glass-ceramic stoves, the heating surface is patterned on a plate made of glass-ceramic material, and under the hood the heating units are arranged in places corresponding to the heating surfaces drawn above the plate. The stove is often implemented as a separate, box-like unit, the bottom or 1® beam of which is fitted to the unit in response to flexible mounting members that resiliently press the corresponding heating unit against the lower surface of the board in the sauna.

20 In a known embodiment, the flexible mounting part has a screw which is unscrewed directly from below to the heating unit. The screw is surrounded by a sleeve that defines the screwing tea. A helical spring is arranged around the sleeve, which, when the screw is screwed on, is tensioned between the heat-25 unit and a spacer .. fitted against the base of the screw. The base of the screw is inserted into the hole in the beam below the heating unit so that the spacer plate rests against the edge of the hole. The distance between the beam and the glass-ceramic plate is then adjusted so that the heating unit is pressed against the lower surface of the plate with a suitable force. The edge of the hole then cooperates with the screw head "to fasten the heating unit laterally. At least two flexible fastening members must be fitted and the heating unit is then well centered against the corresponding heating surface.

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The disadvantage of the known solution is that the installation work is time consuming because a large part of the pin parts have to be put in place. It is therefore hoped that the number of details will be reduced. Therefore, it has been proposed to fit 5 U-shaped flat springs so that one branch with rivets or the like is attached to the heating unit, the other branch resiliently resting on the beam while the free end of this branch is fitted into the beam opening where it is held in place by a hook-like projection with a tongue leaving the branch and cooperating with the edge of the opening.

However, the most recently described embodiment does not work satisfactorily with respect to the centering of the heating unit, applying the heating surface drawn on the le-15 plate. The flat spring then acquires the shape of a lying U and the branches are relatively long in a plane parallel to the plane in order to obtain suitable elastic properties. When transporting the stove, the branches may be subjected to horizontal G-20 forces from the heating unit, which creates the risk that the heat! the unit moves outside the heating surface.

The object of the invention is to obviate said drawbacks and to provide a device of the type shown which allows the use of fewer particles while ensuring a good fit of the heating unit against the plate and, accordingly, its centering against the drawn heating surface. This is achieved by the device shown in the characterizing part of claim 1. Preferred embodiments are set out in the subclaims.

The invention will now be described in more detail by means of an exemplary embodiment with reference to the accompanying figures, in which: Fig. 33 is a schematic side view of a glass-ceramic type stove according to the invention, a bottom view of the mounting member of Fig. 1, and Fig. 4 is a detailed view of an opening cooperating with the mounting member 5 fitted to the beam shown in Fig. 1.

Figure 1 schematically shows a part of a stove 10 of the type with a cover plate 11 which is a glass-10 ceramic material. The plate is embedded in a frame 12 made of enamelled sheet steel, and is fastened with a suitable fastener. In the usual way, a sealant, for example silicone, is arranged between the outer edge of the plate and the echo. Below the plate 11, at a distance of 15 from it, a U-shaped beam 13 is arranged so that its web is parallel to the cover plate with the branches facing upwards against it. The frame 12 has an inner downwardly directed edge portion 14 provided with a hole 15 through which the other end 20 13a of the beam can be passed. Since the opposite end of the beam can be inserted into a hole shown on the opposite side of the frame in a non-shown, downwardly directed edge portion, the beam is fixed at a predetermined distance from the cover plate. The beam can be locked in the mounting position simply by bending the strips 13b, c fitted to the ends of the beam so that they fit: into the hole 15 in the edge part 14 at its edge.

A heating pad 16 is shown on the upper surface of the cover plate, and directly below it a heating unit 17 is mounted so that it is pressed against the lower surface of the plate under light pressure. For the installation of the heating unit, flexible mounting means in the form of at least two suitably formed flat springs 18 are arranged under the cover plate 11. Each of the similarly formed flat springs has a web 19 and branches 21, 21. The web is fixed to the heating unit by a rivet 22, but a screw fastening can also be used. The arches extend perpendicularly downwards from the web and the leg 20 is then of such length that, when installed, it extends through the opening 23 in the beam 13 so far 5 that the strip 24 bent from the leg will be located below the limiting edge 25 of the opening. The second leg 21 extends from the web 19 first parallel to the leg 20, but is bent at one point approximately half its length so that it resiliently interlocks with the web in the beam 13. For this purpose, the free end 21a of the leg 21 is bent to form a soft abutment surface. Alternatively, the portion parallel to the leg 20 of the leg 21 may be omitted and this leg may extend obliquely towards the beam 13 along its entire length.

Figure 4 shows the shape of the opening 23 in the beam 13. The opening has a width in the areas 26, 27 adjacent the beam branches corresponding to the thickness of the flat spring branch 20, but is wider in the central part 28. This is to allow easy fitting of the branch 20 into the opening 23. The narrower and wider parts of the opening are integrated into the oblique edges 29, 30, 31, 32.

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Figure 2 shows how the branch 20 is formed by beveled front side edges 33, 34. The central part of the lower edge of the branch then acquires the same width as the central area 28 of the opening 33.

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With the described embodiment of the stove mounting parts, the stove can be mounted in a simpler way compared to the old methods. If, for example, two heating units have to be installed, these 35 are first fitted upside down in the bracket, after which the beam 13 is brought against the lower edge of the heating unit so that the branches 20 of the leaf spring are inserted into the corresponding opening t

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5,96060 in 23 bars. This control procedure is facilitated due to the special shape of the free end of the branch 20 and the opening, respectively. After this installation step, the web of the beam 13 is tensioned between the leg 21 and the strip 24, together with the edge 25.

In the next installation step, the stove 10 is turned up and down and the mounting unit consisting of the beam and the heating units is arranged so that the heating units fit on the corresponding heating surface on the cover plate 11. Lo the beam so far that the opposite end of the beam can be inserted into the corresponding hole in the opposite edge portion of the frame (not shown). Once the ends of the beam have been inserted into both holes 15 in the edge portions 14, the strips 13b, c can be bent again so that they engage the edges of the opening and thus secure the beam in the installed position. The holes 15 in the edge portions 14 are then located in the height direction so that the branch 21 presses the corresponding heating unit against the lower surface of the cover plate 11 with a predetermined force.

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Claims (4)

96060 A device for mounting a heating unit (17) in a stove (10), the heating unit being supported by a beam (13) or the like arranged below the stove and the beam in response to 5 cooperating flexible elements (18) placed against a stove covering, for example made of glass-ceramic material (11). ) plate, characterized in that the resilient elements (18) are each a flat spring provided with a rivet (22) or 10 corresponding fastened webs (19) and two branches (20, 21) attached to the heating unit (17), one of which (20) extends perpendicular to the beam (13) and is inserted into the grooved opening (23) here while on the other hand the second leg (21) extends obliquely towards the beam (3) to fit against it in a spring-like manner. Device according to Claim 1, characterized in that the second branch (21), calculated from the web (19) along its part of its length, extends perpendicular to the beam (13). • · Device according to Claim 1 or 2, characterized in that the grooved opening (23) in the beam (13) has a width at its short ends which corresponds essentially to the thickness of the branch (20) inserted into the opening when, on the other hand, the opening is in a central region. (28) has a larger width, in addition to which the front side parts (33, 34) seen in the fitting direction of the branch are chamfered so that the front edge has a smaller width than the branch otherwise. 30 Device according to one of the preceding claims, characterized in that the branch (20) cooperating with the opening (23) is provided with a strip (24) turned out of the branch, which cooperates with the edge (25) in the opening. to hold the branch in the beam (13). 1 II · 96060