Foods and beverages: apparatus – Cooking – Intercontrol or safety control
Patent
1999-06-30
2000-09-12
Simone, Timothy
Foods and beverages: apparatus
Cooking
Intercontrol or safety control
99340, 99403, 220316, 220319, 220912, A47J 2708, A47J 2709, B65D 4500, B65D 4534
Patent
active
061161519
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVETION
1. Field of the Invention
The invention relates to a pressure cooker with a container intended for receiving items to be cooked. A cover, which can be placed on an outwardly bent container edge and which is lockable with it, can be airtightly closed by means of a closing mechanism provided on the cover. The closing mechanism includes at least two segment-like closure members, adapted arcuately to the circumferential contour of the container edge, distributed over the periphery of the cover, and pivoted on the periphery of the cover. The closing mechanism can be moved by an actuating device from an open position, in which the cover can be removed from the container, into a locked position to extend underneath the container edge. In the locked position the cover on its periphery is pressed against the container edge by an encircling sealing ring.
2. Description of the Prior Art
In a known pressure cooker (DE 40 40 489 C2) a stationary U-shaped holding segment is provided on a cover. Two arcuate clamping segments, which are spaced apart from the holding segment, are articulated on a pivot axis at the outer ends facing one another in the proximity of the holding segment. The holding segment and the clamping segments form a substantially circular arrangement. The holding segment extends under the edge (turned outwardly) of the container and thus aligns the cover with the container so that the clamping segments extend under the turned-over edge. Opposite the holding segment on the free ends of the clamping segments, brackets are provided which extend away from the clamping segments. These brackets are engaged by bolts of a closure lever. The clamping segments in their open position in the region of the brackets are spaced apart at an interval which corresponds to the spacing of the bolts. When the closure lever is pivoted, the bolts move within the brackets. Since the spacing of the bolts is fixed, the clamping segments move during the locking process toward one another, and in the locked position, are disposed adjacent to each other. The length of the brackets is such that the open position and the locked position are precisely defined. This configuration is disadvantageous not only due to the stationary holding part but also due to the fact that the arcuate clamping segments in the locked position only overlap constantly over their circumferential length with the container edge if their articulation is already in the region of the container edge. The consequence of both is that emplacement of the cover on the container requires an unaccustomed movement parallel and perpendicular to the container axis.
SUMMARY OF THE INVENTION
It is an object of the present invention to create a pressure cooker of the above cited type whose cover offers improved operating comfort and simultaneously high locking security.
This object is achieved according to the present invention with several (in particular four) closure members that are combined into several (in particular two) groups of closure members. The closure members in the groups of closure members are connected together with hinges. The several (in particular two) ends of the two groups of closure members, in particular their adjacent two ends, during closing are simultaneously guided obliquely inwardly toward one another. During the opening, the adjacent ends are guided obliquely outward away from one another with the aid of the closing mechanism, which moves the hinges radially between the closure members.
In this way the cover can be emplaced through a simple movement coaxially to the container axis. A stationary holding segment is no longer a hindrance, and in the open position of the closing mechanism no closure member is located, not even partially, near the container edge. Rather, only after the cover has been placed perpendicularly onto the container and the sealing ring has been lightly compressed, are the closure members moved into the locked position. In the locked position the closure members overlap the container edge, and un
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Fickert Martin
Graziel Bernhard
Thelen Arnold
Fissler GmbH
Simone Timothy
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