DE3214533C2 - Detachable knob with thermometer on a lid for cooking pans - Google Patents

Abstract

In the handle part (1) of the button, a support thermometer (2) is arranged, the outer surface of which is glued to the handle part (1). A guide ring (3), which has a thread (3a) on its outside, is also glued to the outer surface. This thread (3a) engages in an internal thread of a ring (4) which is rigidly connected to a suction cup (5). To fasten the handle knob, it is pressed onto the surface of the cover (7). By turning the handle (1), the bottom of the thermometer (2) can then be pressed against the surface of the cover. This design allows the thermometer base to rest properly on the cover (7) and thus good heat transfer.

Description

Thermometer (2) by turning the handle (1) on 20, a guide ring 3 is firmly connected. This instructs the surface of the cover (7) can be pressed on external thread 3a into which an internal thread is

3. Handle knob according to claim 1, characterized that the rubber part of the suction cup (5) with the handle part (1) is rigidly connected, and that with

Nes ring 4 engages, which is firmly connected to the rubber part of a suction cup 5. By rotating the handle part 1, the thermometer 2 against the jacket of the thermometer (2) connected guide 25 can be moved axially over the suction cup 5. A flange 3b ring (3) is axially displaceable in the handle part (i) , on the guide ring 3 the complete extension also connects a pretensioned helical spring (9) between the handle part (1) and the guide ring (3)
is arranged, which strives to the guide ring (3)
to pi eat with the thermometer (2) against a lower stop (11).

4. Handle knob according to claim Γ *. characterized, that the suction cup (5) next to the outside

directed sealing lip (5a) has a ϊ .eite, inwardly directed sealing lip (56,).

turning the guide ring 3 out of the ring 4. An O-ring 6 acting as a seal seals the rings 3 and 4 against each other.

The handle knob is shown placed on a cover 7, which is only partially shown, for a cooking pan. The F i g. 1 shows the position of the handle button in which the thermometer 2 is in its highest position compared to the suction cup 5, in which the flange 3b rests on the ring 4. In this position, the handle button was pressed onto the surface of the cover 7 and

then released. In space 8 under the suction cup 5 and

There is now a vacuum under the bottom of the thermometer 2, so that the knob on the lid surface

The invention relates to a detachable handle knob according to FIG. 40 before the bottom of the thermometer 2 sticks, however the preamble of claim 1. does not touch the lid surface, there is no one

Through the CH-PS 5 54 664 is a pan lid with wall-free heat transfer from the lid 7 to the Ther-handle knob became known to have a built-in bimometer2.

has metal thermometer, which the Gartempe- By turning the handle part 1 can now be shown in FIG. 2

temperature. This known handle knob, however, is in contact with the thermometer 2 with the cover 7 at 45 screwed to the lid and can be brought by the housewife. The ring 4 is raised a little, whereby the vacuum in room 8 is increased somewhat. The adhesiveness of the suction cup 5 becomes thereby improved, and the heat transfer between cover 7 and thermometer 2 is perfect.

In the embodiment according to FIGS. 3 and 4, the suction cup 5 is firmly connected to the handle part 1. Of the In addition to the usual, outwardly protruding sealing lip 5a, the suction cup 5 has a second, inwardly protruding one

Equip thermometer. The reason is that 55 sealing lip 5b . It is thus when pressing the middle part of the suction cup after the Aufdrük- handle button only in the fling space 8 a vacuum is generated again from the surface on which it was pressed. The thermometer 2 is fixed with a guide ring 3, lifts off. If the middle part of the suction cup is now connected and this is formed in the handle part 1 axially verschiebfes from the bottom of a Auflagethcrmometer stored bar The guide ring 3 has a downwards, so this is not in bo outside protruding flange 3ö when the suction cup is adhering. Within 10 between

cannot be removed. The thermometer is therefore subject to the periodic cleaning load in the Dishwasher.

There are also already known knobs for pan lids that are easily attached to the lid and at any time can be removed again. These handle buttons are equipped with a suction cup. However, it was so far not possible, handle knobs with suction cup also with one

Contact with the surface of the pan lid, whereby the heat transfer is severely impaired. It is therefore the object of the invention to provide a handle knob, which has a suction cup as a fastening element to be designed in such a way that a built-in support thermometer is properly pressed onto the surface of a lid when the suction cup is firmly attached. By the Aufhiuedruck the negative pressure in the the handle part 1 and the guide ring 3 is a preloaded coil spring 9, which strives is to press the guide ring 3 downwards against a stop ring 11 (FIG. 3).

The F i g. 3 shows the handle button when it is placed on the cover 7 before it is pressed, while FIG. 4 shows the handle button after it has been pressed onto the lid in the firmly sucked state. Located in ring number 8

now a vacuum. The beden of the thermometer 2 is now through the spring 9 on the surface of the lid 7 pressed, which ensures a perfect heat transfer by the spring pressure on the handle part 1, the suction cup 5 is also pressed upwards, as a result of which the vacuum in the annular space 8 is increased somewhat.

The use of a Saiignapfes 5 with an inner sealing lip 5b avoids the need to arrange additional sealing means between the guide ring 3 and the handle part 1.

For this purpose 2 sheets of drawings

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Claims (2)

Patent claims: 1. Detachable knob on a lid for cooking pans, with a suction cup as a fastening element and a thermometer built into the button to display the cooking temperature, thereby characterized in that a guide ring (3) connected to the jacket of the thermometer (2) is opposite the suction cup (5) is axially displaceable in the direction of its central axis, around the bottom of the thermometer (2) to make it pressable against the surface of the cover (7). 2. Handle knob according to claim 1, characterized in that a with the jacket of the thermometer (2) and with the handle part (1) connected guide ring (3) has an external thread (3a) which is in an internal thread of a with the suction cup (5) connected ring (41 engages so that the bottom of the vacuum space of the suction cup can be enlarged to improve its adhesive strength. According to the invention, this task is achieved through training according to the characterizing part of patent claim 1 solved. The dependent claims describe advantageous embodiments of the subject matter of the invention. In the drawing, two exemplary embodiments are shown Subject of the invention shown. FIGS. 1 and 2 show an axial section through a first embodiment one half of a detachable handle knob in two positions and F i g. 3 and 4 an identical axial section through a second embodiment of a detachable handle knob. The handle knob according to FIGS. 1 and 2 has a Handle part I made of plastic, which encloses the upper part of a support thermometer 2 known per se and firmly connected to the jacket, for. B. is glued to the lower part of the jacket of the thermometer 2