EP0643270B1 - Arrangement of supporting built in cooking hobs - Google Patents

Abstract

The device for holding a built-in cooking apparatus, especially a glass ceramic cooking apparatus, in an opening provided in a cooking apparatus receptacle (1), includes a cooking apparatus housing (2) containing heating elements; a cooking apparatus upper portion including a cooking panel (6) and a border frame (4, 5) around the cooking panel (6); a releasable clamping connection device (3, 8) for releasably attaching the cooking apparatus upper portion from above with the cooking apparatus housing; and an attachment device (3) for attaching the cooking apparatus housing (2) in the cooking apparatus receptacle (1). The attachment device (3) has an attachment device portion forming at least a part of the releasable clamping connection device (3, 8) and the cooking apparatus upper portion has an engagement device (8) for engaging the attachment device portion when the cooking apparatus upper portion is connected with the cooking apparatus housing (2), and in a simple way the engagement device is part of the releasable clamping connection device (3, 8). In another embodiment the cooking apparatus housing has a plurality of openings for tubular guide elements which act as the clamping connection device.

Description

The invention relates to an arrangement for holding a built-in hob, in particular a glass ceramic hob, in a designated one Detail of a cooktop holder, with a cooktop housing, which shows the heating device carries and from above via holding means in the hob holder can be attached, and a hob top, consisting of a frame with hob that can be placed on the hob housing from above and can be locked and secured by means of clamping connection means.

It is known that it is advantageous to use the constructive means for connection to design a built-in hob with a hob holder that a reasonable relatively easy solvability is guaranteed. So will for example in DE 91 08 044 U1 proposed an arrangement in of the entire built-in hob, which is arranged in the hob housing Heating device and placed on the hob housing and there is a cooking surface attached to it with the associated frame construction, when mounting from above into the cutout provided for it Hob mount used and in this position by snap or snap connections is secured. For this purpose there are clamping springs on the side of the hob frame attached, with corresponding, on the cutout sides of the Hob holder fastened, horizontally facing holding means, such as B. round pins, interact. To compensate for tolerance in The clamping springs themselves are to ensure that the holding means are used Can be moved laterally via a clamp connection on the hob frame.

This differs from the arrangement described above from DE 93 01 942 U1 known hob only in that the clamping springs not on the hob frame, but on the cut-out sides of the hob holder, and the corresponding holding means, here locking lugs, on the side Hob frame and are not arranged in the hob holder.

These known designs have the disadvantage that either the installation tolerances are very narrow, or, as described above, complex Constructive means are provided that compensate for a certain tolerance should create. To make matters worse, the well-known hobs the assembly of the connecting means in the hob holder and the the corresponding connecting means on the frame of the built-in hob is carried out by different bodies, so that larger deviations capable of connecting means assigned to one another relative to one another are expected. So the lanyard on the frame of the built-in hob assembled by the hob manufacturer, while the lanyard is in the The hob is attached "on site" by the kitchen builder. The disadvantage is with this construction, that the hob is complete when servicing removed from the hob holder and only then dismantled must become.

An arrangement for holding a built-in hob according to the preamble of claim 1 or claim 7 is from DE 77 18 108 U1 and also known from DE 40 04 093 A1. Both writings are based on one two-part construction of a built-in hob. The hob housing, that serves to accommodate the heating device is a separate component screwed to the edge of a worktop cut-out. At This step is carried out first when installing the built-in hob. In the next step, the frame is placed Glass ceramic hob placed on the hob housing from above and fixed. The connection between the hob frame and hob housing produce corresponding locking means on both components. The border frame for the cooking surface has locking pins on the outer edge on with the corresponding snap-in receptacles, with the hob housing are firmly connected, can be brought into engagement. When putting on the hob with a frame on the hob housing, the locking pins are in the locking receptacles pressed in, causing a down on the locking pin directed force acts, which is a safe concern of the cooking surface with Border frame in particular on the circumferential arranged between the components Seal results.

A disadvantage of this known device is that the locking receptacles on Hob housing must be attached. Another disadvantage is that in addition the cooktop housing in addition to the complicated and expensive snap-in receptacles via further fastening elements with the worktop cut-out must be connected. Overall, this means a high manufacturing and Assembly effort.

The object of the invention is the known mounting arrangement for a hob to further develop with a two-part structure so that the same effect with simpler constructional means with significantly less installation effort is achieved.

This object is achieved with a mounting arrangement according to the preamble of claim 1, which is characterized in that the Holding means for fastening the hob housing in the hob holder have a section which preferably projects into the hob housing, which is designed as a clamping connection means and when the Hob top on the hob housing with the corresponding Clamp connection means of the hob top can be brought into engagement.

Furthermore, the object is achieved by a mounting arrangement according to the preamble of claim 6, which is characterized in that the hob housing has openings through which the holding means reach through to fix the hob housing in the hob holder, and that guide sleeves for these holding means are attached to these openings which are when the top of the hob is placed on the hob housing with corresponding all-round on the hob top attached double leg springs can be brought into engagement.

The bracket arrangements according to the invention are characterized by a simple and stable construction. The fact that the holding means for attachment the hob housing or the guide sleeves for these holding means on Hob housing at the same time as a clamping connection for fastening the Cooktop / frame construction can be formed on the arrangement separate corresponding clamping connection means in the hob housing to be completely dispensed with. This reduces the workload at Manufacture of a hob housing considerably.

Figur 1:

eine bevorzugte Ausführungsform der erfindungsgemäßen Halterungsanordnung in Seitenansicht im Schnitt, bei welcher der Einfaßrahmen aus fest miteinander verbundenem Sicht- und Halterahmen besteht,

Figur 2:

in der gleichen Ansicht wir Figur 1 eine Variante, bei der Sicht- und Halterahmen lösbar miteinander verbunden sind,

Figur 3:

in der gleichen Ansicht wir Figur 1 eine Variante mit einteiligem Einfaßrahmen,

Figur 4:

in der gleichen Ansicht wie Figur 1, eine Variante, bei der Kochfläche und Rahmenkonstruktion leicht demontiert und in die Einzelteile zerlegt werden können,

Figur 5:

in der gleichen Ansicht wir Figur 1 eine weitere Anordnung mit einstückigem Einfaßrahmen,

Figur 6:

in der gleichen Ansicht wie Figur 1 eine weitere Anordnung mit besonderer Dichtung,

Figuren 7 a-e:

in perspektivischer Darstellung verschiedene Varianten von Zweischenkelfedern, die als Klemmverbindungsmittel geeignet sind,

Figuren 8 a-d:

in perspektivischer Darstellung verschiedene Varianten für die Ausbildung eines Haltemittel für das Kochfeldgehäuse als korrespondierendes Teil zu einer Zweischenkelfeder nach den Figuren 7 a-e.

Figur 9:

in der gleichen Ansicht wie Figur 1 eine Ausführungsform analog zu Figur 2, aber mit U-förmigem Halterahmen, und

Figur 10:

in der gleichen Ansicht wie Figur 1 eine weitere erfindungsgemäße Halterungsanordnung, bei welcher die zu den Klemmverbindungsmitteln am Kochfeldoberteil korrespondierenden Klemmverbindungsmittel durch Führungshülsen für die Haltemittel am Kochfeldgehäuse gebildet werden.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below:
Show it:

Figure 1:

a preferred embodiment of the bracket arrangement according to the invention in side view in section, in which the border frame consists of fixed interconnected viewing and holding frame,

Figure 2:

1 shows a variant in which the viewing and holding frames are detachably connected to one another,

Figure 3:

1 shows a variant with a one-piece border frame,

Figure 4:

in the same view as FIG. 1, a variant in which the cooking surface and frame construction can be easily dismantled and broken down into the individual parts,

Figure 5:

1 shows a further arrangement with a one-piece border frame,

Figure 6:

1 shows a further arrangement with a special seal in the same view as FIG. 1,

Figures 7 ae:

in perspective representation different variants of double leg springs, which are suitable as clamping connection means,

Figures 8 ad:

in perspective representation different variants for the formation of a holding means for the hob housing as a corresponding part to a two-leg spring according to Figures 7 ae.

Figure 9:

in the same view as Figure 1, an embodiment analogous to Figure 2, but with a U-shaped holding frame, and

Figure 10:

in the same view as FIG. 1, a further mounting arrangement according to the invention, in which the clamping connecting means corresponding to the clamping connecting means on the top of the hob are formed by guide sleeves for the holding means on the hob housing.

One can see a hob view in FIG. 1, here a worktop cut-out on the outer edge of a hob housing (2) is attached. On the hob housing (2) is a border frame, consisting here consisting of viewing frame (4) and holding frame (5), with cooking surface (6). The cooking surface (6) is with a temperature-resistant, permanently elastic, all-round Profile (7), e.g. B. made of silicone, between the viewing frame (4) and Holding frame (5) clamped. The connection between (4) and (5) is made in this case via a fixed connection (4a), e.g. B. by a rivet attachment, or by spot welding. A detachable connection is also possible.

Depending on the size of the hob, there are sunk holes all round in the holding frame (5) preferably 10 to 12, evenly distributed, arranged, in which each by means of a fastener, e.g. B. a rivet attachment (9), a clamping connection element (8) (shown here from the side) is appropriate.

When installing the hob, the hob housing (2), which contains the heating elements and includes the wiring in the countertop cutout (1) inserted. For the necessary due to the high temperatures that occur The spacers between (1) and (2) are punched out (2a) in which for the attachment of the hob housing (2) in the hob holder (1) a hole is provided. The hob housing (2) in Figure 1 with a wood screw (3a) on which a sleeve (3b) is attached, screwed on the front to the edge of the worktop (1).

The hob top (4,5) with the hob (6) is then only inserted in the hob housing (2) and pressed down evenly. The holding means (3), here (3a) and (3b) (see figures 8a to 8d), the receptacle for the clamping connection element (8), which creates a non-positive, releasable connection.

This arrangement ensures that the hob is easily in from above the worktop (1) can be installed and - when servicing - easily can be dismantled from above as far as, for example, defective heating elements can be replaced easily and inexpensively without doing so the entire hob can be removed from the worktop (1) got to. In addition, the hob housing (2) is characterized by a simple Construction from. It is not necessary to add additional ones in the hob housing (2) To provide clamping connection means.

In the preferred embodiment of the invention described above the section of the holding means (3) designed as a clamping connection means horizontally into the inside of the hob housing (2). The holding means (3) can also be designed so that this section between the outer wall of the hob housing (2) and the hob holder (1) located. However, the latter variant is more complex to implement.

Without restricting generality, in FIG. 1 there are holding means for fastening the hob housing (2) to the worktop edge (3a) provided, the section designed as a clamping connection element of the holding means (3) in a simple manner by means of a screw shaft attached sleeve (3b) is realized. With this round pin-shaped Part are shown in Figure 1 two-leg fields (8), which as the corresponding Clamping fasteners are attached to the hob top in Brought in.

However, the invention is in no way based on this special type of clamp connection limited. It is only a preferred one Embodiment of the invention. Can also be used as clamp connection elements Locking lugs and corresponding locking receptacles and the like, one Devices producing the clamp connection are used. It is the same possible, albeit more complex, that protrudes into the hob housing Section of the holding means for fastening the hob housing on Worktop edge as a clamping spring, e.g. B. double leg spring to train and the round pins that can be brought into engagement with the two-leg springs on To attach the hob top. The multitude of possible variations there are no limits here.

The combination of two-leg spring and round pin-shaped, horizontal in the Inside of the hob housing protruding part of the holding means for attachment the hob housing in the hob holder has the advantage that depending on the length of the round pin-shaped part or width of the spring legs Tolerances perpendicular to the edges of the cooktop holder easily compensated can be.

In order to also be able to compensate for installation tolerances parallel to the side edges, the corresponding clamp connection means are advantageously slidably disposed relative to each other along the side edges. This can, as will be shown below, in a simple manner reach a guide slot (8a) in the two-leg spring (8) that is parallel to the respectively assigned side edge of the hob holder (1) runs and over which the spring on the corresponding part of the built-in hob, in Figure 1 on the holding frame (5), slidable along the side edge, is attached.

Figure 2 shows a variant of Figure without restricting generality 1, in which only the fixed connection (4a) between the viewing frame (4) and Holding frame (5) was replaced by a detachable connection (4b).

• Schraubbolzen im Sichtrahmen (4); Dabei wird der Halterahmen (5) am Sichtrahmen (4) mittels Muttern befestigt,
• Gewindebohrung im Sichtrahmen (4); Verschraubung von Halterahmen (5) mit Sichtrahmen (4) mittels Senkkopfschrauben,
• Biegelaschenverbindung.

The detachable connection (4b) can be represented as

• Bolts in the frame (4); The holding frame (5) is fastened to the viewing frame (4) by means of nuts,
• Threaded hole in the viewing frame (4); Screwing the holding frame (5) to the viewing frame (4) using countersunk screws,
• Bending tab connection.

An advantage of this type of connection is that, for example, the Cooking surface (6) can be replaced on site in the event of service.

Figure 3 shows a further variant in which the cooking surface (6) with the Border frame, here only consisting of the overlapping over the cooking surface (6) Visual frame (4), non-positive and permanently elastic, e.g. B. with silicone, is glued all around (see gluing (12)).

This configuration example is without restriction of generality flat clamping connection means (8), here flat spring elements made of spring jet or spring wire, as shown in FIG. 7 d and FIG. 7 e, which are rigidly connected to the frame (4) via connecting means (9a) are. Here, too, a non-positive, releasable connection to the Holding means (3) or (3a, 3b) and thus to the hob housing (2).

FIG. 4 shows a further variant of the holding arrangement according to the invention, in which the holding frame (5) is connected to the hob housing (2) (e.g. spot welded or via rivet connection or via a detachable Connection). After the hob housing (2) in the hob holder (1) is fixed with the holding means (3) or (3a, 3b), only the Cooking surface (6), provided with an all-round temperature-resistant permanently elastic sealing profile (7), z. B. made of silicone, on the holding frame (5) and then the viewing frame (4) with all around in evenly spaced flat clamping connection means (8) (3b) attached.

The spring elements shown in FIGS. 7d and 7e can each through slot-shaped punch openings (5b) in the holding frame (5) to grab. The bending tabs punched out on one side and bent up (5c) also serve as adjustment aids when inserting the cooking surface (6) with the seal (7). The advantage here is that the hob-frame composite in case of service as well as for recycling easily into the Individual parts can be disassembled.

Figure 5 shows a variant in which the top of the hob is only made the holding frame (5). The cooking surface (6) is non-positive in this case and permanently elastic with the holding frame (5) via an adhesive connection (12) connected.

Figure 6 shows a variant of Figure 5, in which the cooking surface (6) only is glued on the face (12a). The cooking surface (6) lies on it a permanently elastic pad (13). As already from the patent application P 43 18 854.0 is known, the cooking surface (6) can be used for servicing as well as for recycling easily with a knife almost without sticking Glue can be separated from the holding frame (5) again.

Figure 7b shows in detail a special design option for the Clamping connection element (8) and its attachment to the hob top part (4, 5). The spring elements (8) are encircled in recessed, rectangular cutouts (5d) in the hob top, e.g. B. in the holding frame (5) or view frame (4) clipped in. The side of the clamp connector (8) arranged locking elements (8b) result in a non-positive, but - with a somewhat oversized recess (5d) - still slightly flexible connection to the frame.

FIG. 7c shows a further fastening variant of the clamping elements (8) on Frame. Here, in the manufacture of the frame in the area of Support leg for the cooking surface (6) all-round slot-shaped opening punched out (5b) such that, as shown in Figure 7c, a Punching tab (14) remains. This is bent vertically downwards and then the clamping connection element (8) with guide slot (8a) (see FIG. 7a). By bending the two ends of the punch tab (14) the spring element (8) is locked such that this along the frame can move freely and compensate for tolerances during assembly can.

Figures 8a to d show various design options of the Holding means (3), for. B. in the form of a one-piece bolt for Slotted screwdriver (Figure 8a) or Phillips screwdriver (here not shown), for Allen keys (Figure 8b) or for socket wrenches (Figure 8d). FIG. 8c shows the holding means (3) in the form of a simple one Wood screw (3a) with a sleeve (3b).

FIG. 9 shows a further embodiment of the invention, in which the Holding frame (5) is designed as a U-profile and with which over the cooking surface comprehensive view frame (4) releasably connected via connecting means (4b) is. The cooking surface (6) is with the U-shaped sealing profile (7), which is attached to the edge of the hob (see also Fig. 2), clamped between the holding frame (5) and the viewing frame (4).

• Blechtreibschrauben,
• Klipse aus Kunsstoff (ähnlich zur Automobilindustrie),
• v-förmig gebogene Federbleche mit Rastnut,
• profilierte Kunststoffkeile, mit denen der Halterahmen (5) hochgedrückt wird und damit die Kochfläche (6) mit dem Dichtungsprofil (7) von unten an den Sichtrahmen (4) drückt.

In this case, the detachable connections (4b) can be represented, for example, as:

• Self tapping screws,
• Plastic clips (similar to the automotive industry),
• V-shaped spring plates with locking groove,
• Profiled plastic wedges with which the holding frame (5) is pushed up and thus presses the cooking surface (6) with the sealing profile (7) from below onto the viewing frame (4).

FIG. 10 shows a further inventive mounting arrangement. At this Bracket arrangement are the openings in the hob housing (2) through which the holding means (3) for fastening the hob housing (2) in the Reach through the hob holder (1) and provide it with guide sleeves (3c). The holding means (3) can be the holding means described above, for example those shown in Figure 8. The guide sleeves (3c) and in this variant, the holding means (3) do not provide the clamping connection means corresponding clamping connection means on the hob top The guide sleeves (3c) are used to manufacture the Clamp connection, as shown in the figure, with the all-round on Top of the hob attached to the two-leg springs.

The guide sleeves (3c) can both on the hob housing (2) inwards be arranged pointing, but they can also be on the outside of the hob holder (1) facing side of the hob housing (2) attached be, as shown in Figure 10. The latter has the advantage that the guide sleeves (3c) also serve as a spacer between the hob housing (2) and hob holder (1) can serve. So there is no need the punched spacers shown in Figures 1,3,4,5 and 9 (2a).

The guide sleeves (3c) can be attached to the hob housing in any way (2) can be attached, for example, for simplicity be welded on.

It is obvious that, as in the case of the clamp connection means trained holding means also in this mounting arrangement according to the invention with guide sleeves as the corresponding clamping connection means it is advantageous if the corresponding clamping connection means in each case along the side edge of the hob housing or the top of the hob are arranged displaceable relative to each other. This one too Variants for this are the two-leg springs, preferably via guide slots on the hob top along the side edges of the hob holder slidably arranged (see e.g. Fig. 7c).

Furthermore, the mounting frame can also be used with this mounting arrangement be in two parts, namely consist of viewing frame and holding frame, wherein it can also be advantageous, as shown in Figure 10, the holding frame to be attached to the hob housing (e.g. by spot welding or via rivet connection or a detachable connection) and the view frame with Cooking surface, which has the clamping connection means, on the hob housing to be attached with the holding frame (see also Fig. 4 with description).

Incidentally, all are also in this bracket arrangement according to the invention in connection with the further mounting arrangement according to the invention described above different configurations listed possible.

Reference numerals:

1

Hob recording, worktop cutout

2nd

Hob housing for the admission of the heating elements u. d. Wiring.

2a

Spacer with hole

3rd

Holding device for the hob housing

3a

Wood screw

3b

Sleeve

3c

Guide sleeves for the holding means

4th

View frame

4a

connection

4b

Countersunk screw or threaded bolt with nut

5

Holding frame

5a

Counterbore

5b

Slotted punch opening

5c

Bending tab as adjustment aid

5d

rectangular, recessed recess

6

Cooking surface

7

permanently elastic sealing profile, e.g. B. made of silicone

8th

Clamp connection means, e.g. B. in the form of a spring element

8a

Guide slot

8b

Locking element

9

Attachment, e.g. B. rivet attachment such that the clamping connection means (8) is laterally displaceable

9a

rigid connection

10th

Sealing bead, e.g. B. made of PUR (polyurethane foam) or foam rubber profile

12th

permanently elastic bonding, e.g. B. with silicone

12a

permanently elastic frontal gluing, e.g. B. with silicone

13

permanently elastic support, e.g. B. made of silicone

14

Punch tab

Claims (13)

1. Arrangement for securing a built-in hob, in particular a glass ceramic hob, in a hob mounting clearance provided for this purpose, having a hob housing, which bears the heating devices and can be fastened in the hob mounting from above via retaining means, and having a hob top part, comprising a surround frame with cooking vessels, which can be positioned on the hob housing from above and can be secured in a latchable manner via clamping-type connecting means, characterized in that the retaining means (3) for fastening the hob housing (2) in the hob mounting (1) has a section which is designed as clamping-type connecting means and, when the hob top part (4,5,6) is positioned on the hob housing (2), can be brought into engagement with the corresponding clamping-type connecting means (8) of the hob top part (4,5,6).
2. Arrangement according to Claim 1, characterized in that that section of the retaining means (3) which is designed as a clamping-type connecting means projects into the hob housing (2).
3. Arrangement according to Claim 1 or 2, characterized in that the corresponding clamping-type connecting means (3,8) each comprise a two-legged spring (8) and a round-pin-like part which can be brought into engagement therewith.
4. Arrangement according to Claim 3, characterized in that the two-legged springs (8) are seated, in a manner known per se, all the way around the outer border of the hob top part (4,5), and the corresponding round-pin-like parts are formed by cylindrical extended sections which belong to the retaining means (3) and project horizontally into the interior of the hob housing (2).
5. Arrangement according to Claim 4, characterized in that the retaining means (3) are screws (3a), the cylindrical extended section being formed by the extended screw heads which run along the longitudinal axis.
6. Arrangement according to Claim 4, characterized in that the retaining means (3) are screws (3a), the cylindrical extended section being formed by a sleeve (3b) which is drawn onto the screw shank.
7. Arrangement for securing a built-in hob, in particular a glass ceramic hob, in a hob mounting clearance provided for this purpose, having a hob housing, which bears the heating devices and can be fastened in the hob mounting from above via retaining means, and having a hob top part, comprising a surround frame with cooking surface, which can be positioned on the hob housing from above and can be secured in a latchable manner via clamping-type connecting means, characterized in that the hob housing (2) has openings, and the retaining means (3) for fastening the hob housing (2) in the hob mounting (1) engage through these openings, and in that guide sleeves (3c) for the retaining means (3) are fitted at these openings and, when the hob top part (4,5,6) is positioned on the hob housing (2), can be brought into engagement with corresponding two-legged springs (8) which are fitted all the way around the hob top part.
8. Arrangement according to Claim 7, characterized in that the guide sleeves (3c) are arranged so as to be oriented outwards from the hob housing (2), the length of the sleeves (3c) being such that they serve, at the same time, as spacers between the hob housing (2) and the hob mounting (1).
9. Arrangement according to at least one of Claims 1 to 8, characterized in that the corresponding clamping-type connecting means (3,8) or (3c,8) are arranged so as to be displaceable relative to one another along the side edges of the hob mounting (1).
10. Arrangement according to Claim 9, characterized in that the two-legged springs (8) are arranged on the hob top part (4,5) so as to be displaceable along the side edges of the hob mounting (1) via guides (8a).
11. Arrangement according to at least one of Claims 1 to 10, characterized in that the surround frame of the hob top parts comprises, in a manner known per se, a visible frame (4) and a retaining frame (5).
12. Arrangement according to Claim 11, characterized in that the visible frame (4) can be positioned on the hob housing (2) with retaining frame (5) from above and can be secured via the clamping-type connecting means (3,8) or (3c,8).
13. Arrangement according to Claim 11, characterized in that the visible frame (4), which grips over the cooking surface (6), and the retaining frame (5) with the clamping-type connecting means (8), are connected releasably to one another via suitable fastening means (4b) and clamp the cooking surface (6) together with the sealing profile (7).

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