JP2014156996A - Fixing structure for illumination room glass sheet of heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing structure for illumination room glass sheet in which a seal member is hardly deteriorated when a glass sheet for transparently sealing the illumination room arranged outside an opening part formed at one side wall of a cooking chamber for heating and cooking food material is fixed to one side wall of the cooking chamber through the seal member.SOLUTION: A fixing structure 20 for a glass sheet of illumination room of a heating and cooking unit in which a glass sheet 19 for transparently sealing an illumination room 17 arranged outside an opening part 12b formed at one side wall 12a of the cooking chamber for heating and cooking food material is fixed to the one side wall 12a of the cooking chamber comprises a sheet-like seal member 21 having heat-resistance and oil-resistance installed between a peripheral edge of the opening part 12b and a peripheral edge of the glass sheet 19, and a fixing frame 22 for pushing the glass sheet 19 against the one side wall 12a of a cooking chamber 12 and fixing it against the side wall through the seal member 21, a flat pressing surface part 22a formed at the inner peripheral edge of the fixing frame 22 is abutted in plane against the peripheral edge of the glass sheet 19, and the fixing frame 22 is fixed to the one side wall 12a of the cooking chamber.

Description

  The present invention is for an illumination room of a heating cooker that fixes a glass plate that covers a lighting room provided on the outer side of an opening formed on one side wall of a cooking chamber for cooking food to be translucent to the one side wall of the cooking chamber. The present invention relates to a glass plate fixing structure.

  Patent Document 1 below discloses a cooking device that cooks food. This cooking device includes a cooking chamber for cooking foods and a steam generator in a housing. Moreover, the heater which heats foodstuffs, and the fan which convects the air in a cooking chamber are provided in the cooking chamber. In this heating cooker, the foodstuff accommodated in the cooking chamber is cooked by operating a heater, a fan, and a steam generator.

  As shown in FIG. 5, the heating cooker is provided with an illumination chamber 103 outside the opening 102 b formed in the right side wall 102 a of the cooking chamber 102 for cooking and cooking food, and the illumination chamber 103 can transmit light. The glass plate fixing structure 101 of the heating chamber for fixing the glass plate 104 to the right side wall 102a of the cooking chamber 102 is provided. The glass plate fixing structure 101 for the lighting room cooks the glass plate 104 that seals the glass plate 104 that closes the opening 102b of the right side wall 102a of the cooking chamber 102 and the peripheral portion of the opening 102b, and the glass plate 104. And an attachment frame 106 that is pressed against and fixed to the right side wall 102a of the storage 102. The gasket 105 includes a substrate portion 105 a extending in the thickness direction of the glass plate 104 at the peripheral portion of the glass plate 104, and the glass plate 104 and the right side wall 102 a of the housing 11 from the end of the substrate portion 105 a on the illumination chamber 103 side. An illumination chamber side seal portion 105b extending in between, and a frame side seal portion 105c extending between the glass plate 104 and the mounting frame 106 from the end of the substrate portion 105a opposite to the illumination chamber seal side 105b; The glass plate 104 has a substantially U-shape that is open on the glass plate 104 side and seals the entire peripheral edge of the glass plate 104. The mounting frame 106 has the inner peripheral edge abutted against the frame side seal 105c of the gasket 105, and the four corners of the outer peripheral edge are screwed in a state where the illumination room side seal 105b and the frame side seal 105c are pressed. Is attached to the right side wall of the cooking chamber 102. The lighting room glass plate fixing structure 101 configured as described above prevents high-temperature water vapor containing oil and fat in the cooking chamber 102 from entering the lighting room 103.

JP 2011-027274 A

  In the lighting room glass plate fixing structure 101 described above, the cooking chamber is particularly provided by the lighting room seal side 105b between the glass plate 104 of the gasket 105 and the peripheral edge of the opening 102b of the right side wall 102a of the cooking chamber 102. Hot water vapor containing oil and fat in 102 is prevented from entering the illumination chamber 103.

  In this heating cooker, since the outer peripheral edge of the mounting frame 106 is slightly separated from the right side wall 102a of the cooking chamber 102, the base plate portion 105a of the gasket 105 has a high temperature containing oil and fat in the cooking chamber 102. The substrate portion 105a of the gasket 105 was easily deteriorated by being exposed to water vapor. When the gasket 105 deteriorates, the gasket 105 cannot sufficiently seal between the glass plate 104 and the peripheral portion of the opening 102b, and the lamp in the illumination chamber 103 may break down.

  Further, the tip of the inner peripheral edge of the mounting frame 106 that presses the frame side seal portion 105 c of the gasket 105 is bent toward the glass plate 104, and the tip of the inner peripheral edge of the mounting frame 106 is against the glass plate 104. Slightly separated. For this reason, the frame-side seal portion 104c of the gasket 105 was exposed to high-temperature water vapor containing oil and fat in the cooking chamber 102, and was similarly easily deteriorated.

  Further, the mounting frame 106 is fixed by tightening the four corners to the right side wall 102a of the cooking chamber 102 with screws. In order to liquid-tightly seal between the glass plate 104 and the peripheral portion of the opening 102b by the gasket 105, the illumination chamber side seal portion 105b of the gasket 105 is elastic between the glass plate 104 and the peripheral portion of the opening 102b. The mounting frame 106 is firmly fixed to the right side wall 102a of the cooking chamber 102 with a screw so as to be deformed. If the screw is tightened too much, the frame side seal portion 104c of the mounting frame may be crushed, and the tip of the inner peripheral edge of the mounting frame 106 bent toward the glass plate 104 may hit the glass plate 104, possibly causing damage to the glass plate. In the present invention, when a glass plate that covers a lighting chamber provided on the outer side of an opening formed on one side wall of a cooking chamber for cooking foods is fixed to the one side wall of the cooking chamber via a sealing member. An object of the present invention is to provide a fixing structure for a glass plate for an illumination room in which the seal member is not easily deteriorated.

  In order to solve the above-mentioned problems, the present invention fixes a glass plate that covers a lighting room provided on the outer side of an opening formed on one side wall of a cooking chamber for cooking foods so as to transmit light, on one side wall of the cooking chamber. A sheet-shaped sealing member having a heat resistance and an oil resistance interposed between the peripheral edge of the opening and the peripheral edge of the glass plate; An attachment frame that presses and fixes the plate against one side wall of the cooking cabinet via a seal member, and the flat pressing surface formed on the inner periphery of the attachment frame is in surface contact with the periphery of the glass plate The fixing structure of the glass plate for the lighting room of the cooking device is provided by pressing and fixing the mounting frame to one side wall of the cooking cabinet.

  In the fixing structure of the glass plate for the lighting room of the heating cooker configured as described above, a sheet-like sheet having heat resistance and oil resistance interposed between the peripheral edge of the opening and the peripheral edge of the glass plate. Since the seal member is interposed, the end surface of the thickness portion of the seal member is only exposed to high-temperature steam containing oil and fat in the cooking chamber, and the seal member is hardly deteriorated. In addition, the mounting frame that presses and fixes the glass plate against one side wall of the cooking chamber via the seal member is pressed in a state where the flat pressing surface portion formed on the inner peripheral edge thereof is in surface contact with the peripheral edge portion of the glass plate. Since the mounting frame was fixed to one side wall of the cooking cabinet, it was difficult to apply pressure locally to the glass plate, making it difficult to break.

  In the fixing structure of the glass plate for the lighting room of the heating cooker configured as described above, it is optimal to employ a fluororesin sheet as the sealing member, and in such a case, the sheet should be highly versatile. In addition to being able to be supplied at a low cost, the sealing function can be sufficiently achieved.

It is the schematic of one Embodiment of the heating cooker to which the fixing structure of the glass plate for illumination rooms of this invention is applied. It is the perspective view which looked at the heating cooker from diagonally forward. It is a figure which shows the right side wall of a cooking chamber. It is sectional drawing which shows the fixing structure of the glass plate for illumination rooms. It is sectional drawing which shows the fixation structure of the conventional glass plate for illumination rooms.

  Hereinafter, an embodiment of a heating cooker to which the glass plate fixing structure for an illumination room of the present invention is applied will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the heating cooker 10 includes a cooking chamber 12 that cooks food in portions other than the left side in the housing 11, and a steam generator in the left side machine room in the housing 11. 13 is provided. A heater 14 that heats the interior of the cooking chamber 12 and a fan 15 that circulates the air in the chamber are provided in the cooking chamber 12. A door 16 that closes the front opening of the cooking chamber 12 is provided on the front surface of the housing 11 so as to be freely opened and closed.

  As shown in FIGS. 2 to 4, a substantially rectangular opening 12 b is formed at the center of the right side wall 12 a of the cooking chamber 12, and a concave portion that is recessed outward is formed at the peripheral edge of the opening 12 b. Has been. An illumination room 17 is provided outside the opening 12b, and a lamp 18 for illuminating the inside of the cooking cabinet 12 is provided in the illumination room 17. The lamp 18 is controlled to be lit when the door 16 is opened. The illumination room 17 is covered with a flat glass plate 19 larger than the opening 12b so as to transmit light. The glass plate 19 is fixed to the right side wall 12a of the cooking cabinet 12 by the fixing structure 20 of the glass plate for the illumination room to be described. It is fixed.

  The lighting room glass plate fixing structure 20 includes a sealing member 21 interposed between the peripheral edge of the opening 12b of the right side wall 12a of the cooking chamber 12 and the peripheral edge of the glass plate 19, and the glass plate 19 as a sealing member. 21 and an attachment frame 22 that is fixed to the right side wall 12a of the cooking cabinet 12 in a state where it is pressed. The sealing member 21 is a sheet member made of polytetrafluoroethylene (PTFE) (also referred to as a Teflon (registered trademark) sheet), and is a sheet member having high heat resistance and high oil resistance. The seal member 21 has a quadrangular frame shape, and the inner peripheral portion is slightly larger than the opening 12 b and the outer peripheral portion is the same size as the glass plate 19. The sealing member 21 has a thickness of 1 mm and is elastically deformed appropriately in the thickness direction to seal the peripheral edge of the opening 12b and the peripheral edge of the glass plate 19 in a liquid-tight manner. The seal member 21 is not limited to a sheet of polytetrafluoroethylene (PTFE), and examples of materials having high heat resistance and oil resistance include perfluoroalkoxy fluororesin (PFA), ethylene / tetrafluoroethylene A fluororesin such as a polymer (ETFE) or polyvinyl fluoride (PVF) processed into a sheet may be used.

  The mounting frame 22 has a quadrangular frame shape, and the inner peripheral portion has the same size as the opening 12 b and the outer peripheral portion is larger than the glass plate 19. A flat pressing surface portion 22 a is continuously formed in the circumferential direction on the inner peripheral edge portion of the mounting frame 22, and the mounting frame 22 presses the pressing surface portion 22 a against the peripheral edge portion of the glass plate 19. Yes. The mounting frame 22 is bent so as to be separated from the glass plate 19 in a direction extending from the pressing surface portion 22 a to the outer end side of the glass plate 19, and the outer peripheral edge portion of the mounting frame 22 covers the peripheral edge portion of the glass plate 19. 12 is bent to the right side wall 12a side. Attachment holes are formed at four corners of the attachment frame 22, and the attachment frame 22 is fixed by fastening screws inserted into the attachment holes to the right side wall 12 a of the cooking chamber 12.

  In said heating cooker 10, the foodstuff accommodated in the cooking chamber 12 is cooked by operating the heater 14, the fan 15, and the steam generator 13. At this time, hot steam containing oil and fat convects in the cooking chamber 12.

  In the heating cooker 10 configured as described above, the illumination room 17 is provided outside the opening 12b formed in the right side wall 12a of the cooking cabinet 12, and the glass plate 19 that closes the illumination room 17 is for the illumination room. It is fixed to the right side wall 12 a of the cooking cabinet 12 by a glass plate fixing structure 20. The glass plate fixing structure 20 for the lighting room is a sheet-like sheet having heat resistance and oil resistance interposed between the peripheral edge of the opening 12 b of the right side wall 12 a of the cooking chamber 12 and the peripheral edge of the glass plate 19. A sealing member 21 and an attachment frame 22 for pressing and fixing the glass plate 19 against the right side wall 12a of the cooking cabinet 12 through the sealing member 21 are provided. Since the sealing member 21 is a sheet having heat resistance and oil resistance interposed between the peripheral edge of the opening 12b and the peripheral edge of the glass plate 19, the end face of the thickness portion of the sealing member 21 is the cooking chamber. It became only exposed to the high temperature water vapor | steam containing the fats and oils in 12, and the sealing member 21 became difficult to deteriorate. Since the seal member 21 between the peripheral edge of the opening 12b and the glass plate 19 is less likely to deteriorate, it is possible to prevent high-temperature water vapor containing oil and fat from entering the illumination chamber 17 for a long period of time. The failure of the lamp 18 due to condensation or oil can be prevented over a long period of time.

  Further, the mounting frame 22 that presses and fixes the glass plate 19 to the right side wall 12a of the cooking cabinet 12 through the seal member 21 has a flat pressing surface portion 22a formed on the inner peripheral edge thereof facing the peripheral edge portion of the glass plate 19. The mounting frame 22 is fixed to the right side wall 12a of the cooking cabinet 12 by pressing in the abutted state. Thereby, it became difficult to apply a pressure locally to the glass plate 19 by the pressing surface portion 22a, and the glass plate 19 was not easily damaged. Further, the peripheral edge of the glass plate 19 is in contact with the pressing surface 22a of the mounting frame 22 and the peripheral edge of the opening 12b immediately behind the pressing surface 22a through the glass plate via the seal member 21. The load applied to the glass plate 19 from the mounting frame 22 is transmitted to the peripheral edge portion of the opening 12b of the right side wall 12a of the cooking cabinet 12 without being offset, and the glass plate 19 is hardly damaged.

  In said embodiment, although the illumination chamber 17 was provided in the outer side of the opening part 12b of the right side wall 12a as one side wall of the cooking chamber 12, this invention is not limited to this, As one side wall of the cooking chamber 12 Even if an opening is formed on the left or rear wall, an illumination room is provided outside the opening, and a glass plate for fixing the illumination room is adopted for the glass plate that closes the illumination room An effect can be obtained.

 DESCRIPTION OF SYMBOLS 10 ... Heating cooker, 12 ... Cooking chamber, 12a ... One side wall (right side wall), 12b ... Opening part, 17 ... Lighting room, 18 ... Lamp, 19 ... Glass plate, 20 ... Fixing structure of the glass plate for lighting rooms, 21 ... sealing member, 22 ... mounting frame, 22a ... pressing surface part.

Claims (2)

A glass plate for an illumination room of a heating cooker for fixing a glass plate, which covers a lighting chamber provided on the outer side of an opening formed on one side wall of a cooking chamber for cooking food, so as to transmit light. Fixed structure,
A sheet-like sealing member having heat resistance and oil resistance interposed between the peripheral edge of the opening and the peripheral edge of the glass plate;
An attachment frame for pressing and fixing the glass plate against one side wall of the cooking chamber via the seal member;
A flat pressing surface formed on the inner peripheral edge of the mounting frame is pressed in a state of being in surface contact with the peripheral edge of the glass plate, and the mounting frame is fixed to one side wall of the cooking cabinet. Fixing structure of glass plate for lighting room of cooking device. In the fixing structure of the glass plate for the lighting room of the heating cooker according to claim 1,
The structure for fixing a glass plate for an illumination room of a heating cooker, wherein the sealing member is a fluororesin sheet.

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