Sharp Kabushiki Kaisha Corporation

Kazuyuki Matsubayashi

Shinya Ueda

Yuzi Ando

Yoshikazu Yamamoto

Hiroshi Hirano

Yasuhiro Sakoda

Koichi Tateda

Kazushi Furukawa

Tatsuya Mineoka

Takushi Kishimoto

Kiyoshi Yamaguchi

Hideo Shimoda

Takao Murai

Shinya Kudo

Yuji Ando

Yuji Andoh

A cooking device has, in a cooking chamber thereof, a cooking tray () which is to be placed in the heating chamber () so as to have a gap against a rear portion () of the heating chamber () and on which a heating object () to be heated is to be mounted directly or indirectly, a rear blowoff port () which is provided in the rear portion () of the heating chamber () so as to be positioned on an upper side of the gap and near a rear portion of the cooking tray () and which is communicated with a duct () so as to allow the heat medium to be blown off into the heating chamber (), and a flow regulation structure () provided on a rear side of the rear blowoff port () and arranged to regulate a flow of the heat medium. The flow regulation structure () has, on a lower side thereof, a first guide surface () extending in a direction generally parallel to a horizontal direction.

Cooking device

An insertion hole () is provided in a packing () and a rotating shaft () is inserted into the insertion hole (). A sliding portion () forming an air clearance () is provided on the outside of the packing (). The rotating shaft () is inserted into the insertion hole () with a grease G applied to the circumferential surface thereof. When the rotating shaft () is inserted, the grease G is shaved off by the sliding portion () and a sufficient amount of the grease G is stored in the air clearance (). Consequently, frictional sound and heat are and thus reduced between the rotating shaft () and the packing (), the sliding portion () can come into tight contact with the rotating shaft (), thereby enhancing airtightness.

Packing and steam cooking device and method for manufacturing steam cooking device

A protruding portionhaving a sloped surfacesloped against a ceiling surface is provided on the ceiling side of a cooking chamber. Superheated steam from a steam temperature-raising deviceis blown off from first ceiling steam blowoff openingsprovided in a flat surfaceof the protruding portiontoward a bottom face within the cooking chamber, while the superheated steam is blown off from second ceiling steam blowoff openingsprovided in a sloped surfaceof the protruding portiontoward the side face within the cooking chamber. The superheated steam blown off from these steam blowoff openingsandis effectively supplied to upper-and-back surface of a heating objectrested in the cooking chamberso as to be spaced from the bottom face of the cooking chamber

Heating cooker

A heating cooker has a side wall of a heating chamber () formed with an outlet () for discharging a heating fluid and an engagement portion (). A tray () has an edge portion (), a side wall portion () having a thorough hole (), a flat surface portion (), an inner wall portion (), and a bottom portion (). When the tray is engaged with the engagement portion with its front surface side facing up, the through hole faces the outlet. A part of the discharged heating fluid is fed to the rear surface side of the tray through the through hole, and the remaining fluid is fed to the front surface side. When the tray is engaged with the engagement portion with its rear surface side facing up, an opening in a groove portion () defined between the side wall portion and the inner wall portion faces upward.

Heating cooker and tray therefor

In a ceiling part of a heating chamber, a sub-cavity is provided in which a steam-heating heater is housed. Steam generated by a steam generating device is heated by the steam-heating heater inside the sub-cavity to be brought into an overheated state, and is then jetted out through upper jet holes provided in the ceiling part of the heating chamber and through side jet holes provided in lower parts of the side walls of the heating chamber at both sides thereof. Food is supported on a rack to be in a state floating above the floor surface of the heating chamber, and, through the side jet holes, steam is jetted toward under the food.

Steam cooking apparatus

In a steam cooker, a tray-shaped case () of a steam temperature-raising device () has a recessed part () into which steam from a steam generator flows through steam supply ports (A-C) provided in a first sidewall (). First and second steam superheaters () are placed in the recessed part () of the tray-shaped case () so as to be axisymmetrical with respect to a center line (L). A plurality of steam outlets (A-A,B-B) for supplying steam into a heating chamber sideways are provided in second and third sidewalls (A,B) adjoining the sidewall () having the steam supply ports (A-C) of the recessed part (), and on the opposite side of the steam supply ports (A-C). The tray-shaped case () is placed on a ceiling panel of the heating chamber and at steam outlets with an opening of the recessed part () directed downward.

Steam cooker

In a steam cooker, a tray-shaped case () of a steam temperature-raising device () has a recessed part () into which steam from a steam generator flows through steam supply ports (A,B,C) provided in a first sidewall (). The recessed part () has a planar shape roughly symmetrical with respect to a center line (L) of a steam flow entering through the steam supply ports (A,B, andC). First and second steam superheaters () are placed in the recessed part () of the tray-shaped case () so as to be symmetrical with respect to the center line (L). A spiral heat radiation fin () having a fin pitch of 10 mm or less is wound around the first steam superheater (). The tray-shaped case () is placed on a ceiling panel of a heating chamber and at steam outlets with an opening of the recessed part () directed downward.

In a steam cooker, for heating of a food which is a mass of granular matters or linear matters such as rice or chow mein, a steam superheater is not turned on or is turned on with a very weak electric power so that steam supplied from steam supply pipes (A toC) is substantially not superheated. Steam of 80&#xb0; C. to 90&#xb0; C. derived from the steam supply pipe (B) is jetted out right downward from an opening () of a steam jet pipe (). Then, steam located around an end portion of the steam jet pipe () in a tray-shaped case () is pulled in by steam jetted out from the opening (), so that a large amount of steam is jetted against a bowl of rice or a dish of chow mein. As a result, surfaces of, for example, rice grains are prevented from immediately going beyond 100&#xb0; C., so that condensation at the surfaces of the rice grains is efficiently achieved, and supply of condensed latent heat and penetration of condensed water (hot water) to the rice grains is efficiently achieved.

A cooking apparatus for performing a microwave cooking operation and a convection cooking operation wherein heated air is circulated in an oven cavity. An air intake aperture is formed at the center of the ceiling wall of the oven cavity. The air removed through the air intake aperture is heated up by a heater and reintroduced into the oven cavity through a first blowoff aperture which is positioned at the corner of the ceiling wall near a right side wall of the oven cavity, and through a second blowoff aperture which is asymmetrically positioned at the lower portion of a left side wall of the oven cavity.

Combination microwave and convection oven

A combined microwave and electric heater oven includes a fan system for cooling a magnetron, and a damper for selectively introducing a forced air flow generated by the fan system into an oven cavity. A damper cam is secured to a drive shaft of a damper motor, and a damper link is disposed between the damper cam and the damper to drive the damper. A microswitch is disposed near the damper cam so that the microswitch develops a first detection signal when the damper is tightly closed. In response to the first detection signal, the rotation of the damper motor is terminated to hold the damper in the tightly closed state. The microswitch develops a second detection signal when the damper is placed in the full-open state. In response to the second detection signal, the rotation of the damper motor is terminated to hold the damper in the full-open state.

Growing community of inventors

Osaka, Japan

Kazuyuki Matsubayashi