TH14786B - Self-lubricating door push tabs and hooks? Doors for high-frequency heating equipment. - Google Patents

Abstract

To prevent damage to the switches due to sliding and friction of the door push button and door latch by opening and closing the microwave oven door without the use of grease, the microwave oven shall consist of a heating cabinet (3), a door (4) with a door push button (6) for closing the front opening of the heating cabinet (3), a latch spacer bar (13) controlled by the door (4), a door latch (9) to be hooked onto the door push button (6), and switches (10, 11, 12) which are opened or closed by the door push button (6) and the latch spacer bar (13) to which the door push button (6) is made of resin-filled material. With at least one of the acetate crystals of potassium titanate, calcium metasilicate, magnesium pyroborate, barium titanate, and zinc oxide, which have a lower Mohs strength than glass fibers with acetate crystal diameters of 0.1 μm or greater and 50 μm or less, and the door hook (9) which is attached to the door push plate (6) is made of glass fiber-filled resin material, the surface roughness of the resin of the door push plate (6) is less than the surface roughness of the resin of the door hook (9), thus eliminating the need to apply grease to the sliding parts of the door push plate (6) and the door hook (9).

Claims (7)

1. A high-frequency heating device consisting of: a door, a coupled press plate at the door, where the press plate is made of acetate crystalline resin which has a lower Mohs hardness than that of the fiber, and a door hook to attach to the press plate at the door. The door hook includes glass fibers. 2. A high-frequency heating device consisting of: a first door; a coupled press plate at the door, where the press plate is composed of a resin filled with at least one of the acetate crystals of potassium titanate, calcium metasilicate, magnesium pyroborate, barium titanate, and zinc oxide, which has a Mohs hardness lower than that of glass fiber; and a door hook that attaches to the press plate at the door, incorporating glass fiber. 3. High-frequency heating unit comprising: a door; a coupled press plate at the door, where the press plate consists of a resin-filled barrier containing at least one of the acetate crystals of potassium titanate, calcium metasilicate, magnesium pyroborate, barium titanate, and zinc oxide, with a Mohs hardness lower than that of glass fibers, with an acetate crystal diameter of 0.1 μm or greater and 50 μm or less; and a door hook that attaches to the press plate at the door, where the door hook includes glass fibers. 4. The high-frequency heating unit consists of a heating cabinet, a door with a push-button for closing the front opening of the heating cabinet, a locking lever controlled by the door, a door latch for securing to the push-button on the door, and a switch that is opened or closed by the push-button on the door and the locking lever. The push-button on the door is made of acetate crystalline resin filled with a lower Mohs hardness than glass fiber, and the door latch that is secured to the push-button on the door is made of glass fiber filled resin. 5. The high-frequency heating unit consists of a heating cabinet, a door with a push-button for closing the front opening of the heating cabinet, a locking lever controlled by the door, a door latch for securing to the push-button on the door, and a switch that is opened or closed by the push-button on the door and the locking lever. The push-button on the door is made of a resin filled with at least one acetate crystal of potassium titanate, calcium metasilicate, magnesium pyroborate, barium titanate, and zinc oxide, which has a Mohs hardness lower than glass fiber. The door latch, which is secured to the push-button on the door, is made of a resin filled with glass fiber. 6. The high-frequency heating unit consists of a heating cabinet, a door with a push-button for closing the front opening of the heating cabinet, a door-controlled locking bar, a door latch for securing to the push-button, and a switch operated by the push-button and locking bar. The push-button is made of resin-filled with at least one acetate crystal of potassium titanate, calcium metasilicate, magnesium piborate, barium titanate, and zinc oxide with a Mohs hardness lower than that of glass fibers with an acetate crystal diameter of 0.1 μm or greater and 50 μm or less. The door latch securing to the push-button is made of resin-filled glass fiber material. 7. The high-frequency heating unit consists of a heating cabinet, a door with a push-button for closing the front opening of the heating cabinet, a door-controlled locking bar, a door hook for securing to the push-button, and a switch operated by the push-button and locking bar. The push-button is made of resin-filled with at least one acetate crystal of potassium titanate, calcium metasilicate, magnesium piborate, barium titanate, and zinc oxide with a Mohs hardness lower than that of glass fibers with an acetate crystal diameter of 0.1 μm or greater and 50 μm or less. The door hook, which is secured to the push-button, is made of resin-filled glass fiber material with a surface roughness of the resin on the push-button is less than the surface roughness of the resin on the door hook.