Broiler oven

• US 6,091,057 A
• Filed: 05/27/1999
• Issued: 07/18/2000
• Est. Priority Date: 06/16/1998
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Asami, Shinji, Arita, Tetsuichi, Andoh, Yuzi, Sakoda, Yasuhiro
• Primary Examiner(s): Leung, Philip H.
• Application Number:
  US09/320,690
• Time in Patent Office: 418 Days
• Field of Search: 219/685, 219/702, 219/704, 219/404, 219/754, 219/708, 99/325
• US Class Current: 219/404
• CPC Class Codes: F24C 7/06 Arrangement or mounting of electric heating elements

Abstract

A broiler oven has a heating chamber 2, first and second movable heaters 61 and 62 formed out of tubular heaters and rotatably supported by the inner walls of the heating chamber 2 in such a way that their heating portions 61b and 62b and their shaft portions 61a and 62a joined together so as to be parallel to each other by their arm portions 61c and 62c are held at an equal level, a driving mechanism 12 for rotating the shaft portions 61a and 62a, and a control circuit 10 for controlling the first and second movable heaters 61 and 62 and the driving mechanism 12. The control circuit 10 controls the driving mechanism 12 to rotate the first and second movable heaters 61 and 62 between a non-heating position and a heating position, and energizes the first and second movable heaters 61 and 62 when they are in the heating positions.

Claims

1. A broiler oven comprising:

a heating chamber for accommodating food to be cooked;

a plurality of tubular heaters arranged inside the heating chamber, the tubular heaters each having a shaft portion, a heating portion parallel to the shaft portion, and an arm portion joining the shaft portion and the heating portion together, the tubular heaters each being rotatable about their respective shaft portion so as to be moved between a resting position and a heating position, the tubular heaters being arranged with their shaft portions supported parallel to one another at an equal level, the tubular heaters having their arm portions made equally long and mutually overlapping,

a common driver for rotating the plurality of the tubular heaters;

a controller for controlling heat generated by the tubular heaters; and

a linker for interlocking rotation of the tubular heaters by the common driver so as to keep distances between their heating portions constant.

2. A broiler oven as claimed in claim 1,

wherein the linker is a reflecting plate that is fitted to the tubular heaters so as to be rotatable with respect to each of the tubular heaters.

3. A broiler oven claimed in claim 1,

wherein the plurality of tubular heaters comprise two tubular heaters, and wherein the tubular heaters are each bent near a center of their respective arm portions and are arranged with their bends pointing in opposite directions in such a way that, when the tubular heaters are in the resting position, the shaft portion of the first tubular heater is located near the bend of the arm portion of the second tubular heater and a heating-portion-side portion of the arm portion of the second tubular heater is located near the bend of the arm portion of the first tubular heater, with the shaft portions and the heating portions of the two tubular heaters held substantially at an equal level.

4. A broiler oven comprising:

a heating chamber for accommodating food to be cooked;

a fixed heater provided on a ceiling of the heating chamber;

a movable heater having a shaft portion supported in a portion of the heating chamber near the ceiling thereof and the heating portion rotatable about the shaft portion, the heating portion being rotatable through 180 degrees between a rest position adjacent the fixed heater with respect to the shaft portion and heating position facing the fixed heater;

a supporter for supporting a cooking rack in a position between the fixed heater and the heating position of the movable heater;

a driver for rotating the movable heater; and

a controller for controlling heat generated by the fixed heater and the movable heater.

5. A broiler oven as claimed in claim 4,

wherein the cooking rack is removable from the supporter and is comprised of a frame that is supported on the supporter at both ends thereof and a plurality of beams that are fixed to the frame uniformly from above or below, the beams being made equally thick and arranged on the frame except at and near both ends thereof, the frame being bent near both ends thereof in a direction from which the beams are fixed thereto in such a way that centers of thickness of both ends of the frame and centers of thickness of the beams all lie on a single plane.

6. A broiler oven claimed in claim 4 and additionally comprising a fixed heater provided beneath a floor of the heating chamber.

7. A broiler oven as claimed in claim 6 and additionally comprising a turntable provided in a region above the floor of the heating chamber adjacent the fixed heater provided thereat.

8. A broiler oven as claimed in claim 7 wherein the turntable is located above the fixed heater provided beneath the floor of the heating chamber.

9. A broiler oven as claimed in claim 8 and additional including a sensor for detecting the presence of an object including food on the turntable, and wherein the controller responds to a signal generated by the sensor for deactivating the driver.

10. A broiler oven as claimed in claim 9 wherein the sensor comprises a weight sensor.

12. A broiler oven as claimed in claim 9 wherein the driver comprises an electric motor.

11. A broiler oven as claimed 9 and additionally including a visual and/or acoustic indicator on the oven for indicating the presence of an object including food on the turntable.

13. A broiler oven comprising:

a heating chamber for accommodating food to be cooked;

a plurality of tubular heaters arranged inside the heating chamber, the tubular heaters each having a shaft portion, a heating portion parallel to the shaft portion, and an arm portion joining the shaft portion and the heating portion together, the tubular heaters each being rotatable about their respective shaft portion so as to be moved between a resting position and a heating position, the tubular heaters being arranged with their shaft portions supported parallel to one another at an equal level, the tubular heaters having their arm portions made equally long and mutually overlapping, and

a common driver for rotating the plurality of the tubular heaters.

14. A broiler oven comprising:

a heating chamber for accommodating food to be cooked;

at least two tubular heaters arranged inside the heating chamber, the tubular heaters each having a shaft portion, a heating portion parallel to the shaft portion, and an arm portion joining the shaft portion and the heating portion together, each of the tubular heaters being rotatable about their respective shaft portion so as to be moved between a resting position and a heating position, the tubular heaters being arranged with their shaft portions supported parallel to one another at an equal level, the tubular heaters having their arm portions made equally long and mutually overlapping,

a common driver for rotating the tubular heaters;

a controller for controlling heat generated by the tubular heaters;

a linker for interlocking rotation of the tubular heaters by the common driver so as to keep distances between their heating portions constant; and

wherein the tubular heaters are each bent near a center of their respective arm portions and are arranged with their bends pointing in opposite directions in such a way that, when the tubular heaters are in the resting position, the shaft portion of the first tubular heater is located near the bend of the arm portion of the second tubular heater and a heating-portion-side portion of the arm portion of the second tubular heater is located near the bend of the arm portion of the first tubular heater, with the shaft portions and the heating portions of the two tubular heaters held substantially at an equal level.