Turntable drive mechanism in electronic oven
First Claim
1. In an electronic oven comprising a substantially cubic oven-defining structure having a bottom wall and an access opening leading into the interior of the oven-defining structure above the bottom wall, means positioned for generating high frequency energy towards the interior of the oven-defining structure, and a hingedly supported door for selectively opening and closing the access opening of the oven-defining structure for insertion into and removal from the interior of the oven-defining structure a material to be heat-treated by the high frequency energy, respectively, a turntable drive mechanism which comprises:
- a turntable assembly for the support of a material to be heat-treated by the application of the high frequency energy within the interior of the oven-defining structure, said turntable assembly being removably positioned on the bottom wall of the oven-defining structure for rotation about its own center and having a rotation guiding and supporting structure thereon consisting of a plurality of three or more rollers, through which the turntable assembly is rotatably mounted on the bottom wall of the oven-defining structure, and means for connecting said rollers to said turntable assembly;
a plurality of magnetic members carried by said turntable assembly;
a drive mechanism positioned below the bottom wall of the oven-defining structure and externally of the interior of the oven-defining structure;
a rotary carriage operatively coupled to said drive mechanism and positioned below the bottom wall of and externally of the interior of the oven-defining structure for rotation in one direction; and
magnetic members equal in number to the number of the magnetic members carried by the turntable assembly and carried by said rotary carriage;
said turntable assembly being, during rotation of said rotary carriage, rotated by the effect of magnetic coupling between the magnetic members, carried by the turntable assembly, and the magnetic members carried by the rotary carriage.
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Accused Products
Abstract
A turntable drive mechanism for a microwave oven having an oven-defining structure having a bottom wall and a hingedly supported door for selectively closing and opening an access opening leading into the interior of the oven-defining structure. The turntable drive mechanism has a turntable assembly removably positioned on the bottom wall for rotation about its own center through a plurality of rollers situated between the turntable assembly and the bottom wall, and a plurality of magnets. Cooperating with these magnets carried by the turntable assembly are magnets carried by a rotary carriage driven by a drive unit in one direction and situated below the bottom wall and externally of the oven-defining structure. Rotation of the turntable assembly is induced by rotation of the rotary carriage by the effect of magnetic forces of attraction developed through the bottom wall between the magnets on the turntable assembly and the magnets on the rotary carriage.
40 Citations
22 Claims
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1. In an electronic oven comprising a substantially cubic oven-defining structure having a bottom wall and an access opening leading into the interior of the oven-defining structure above the bottom wall, means positioned for generating high frequency energy towards the interior of the oven-defining structure, and a hingedly supported door for selectively opening and closing the access opening of the oven-defining structure for insertion into and removal from the interior of the oven-defining structure a material to be heat-treated by the high frequency energy, respectively, a turntable drive mechanism which comprises:
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a turntable assembly for the support of a material to be heat-treated by the application of the high frequency energy within the interior of the oven-defining structure, said turntable assembly being removably positioned on the bottom wall of the oven-defining structure for rotation about its own center and having a rotation guiding and supporting structure thereon consisting of a plurality of three or more rollers, through which the turntable assembly is rotatably mounted on the bottom wall of the oven-defining structure, and means for connecting said rollers to said turntable assembly;
a plurality of magnetic members carried by said turntable assembly;a drive mechanism positioned below the bottom wall of the oven-defining structure and externally of the interior of the oven-defining structure; a rotary carriage operatively coupled to said drive mechanism and positioned below the bottom wall of and externally of the interior of the oven-defining structure for rotation in one direction; and magnetic members equal in number to the number of the magnetic members carried by the turntable assembly and carried by said rotary carriage; said turntable assembly being, during rotation of said rotary carriage, rotated by the effect of magnetic coupling between the magnetic members, carried by the turntable assembly, and the magnetic members carried by the rotary carriage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification