Abstract:
In order to provide a gas circuit breaker capable of reducing a remarkable degradation of dielectric strength in the vessel caused by hot gas and which can be downsized, the present invention is characterized by a hot gas discharge mechanism of the movable opening/closing mechanism, which is designed to ensure that the hot gas separated and fed to a movable opening/closing mechanism is discharged from an exhaust outlet 19b toward the side opposite to the puffer chamber 26 of the gas discharge chamber 28 formed on the rear of the puffer chamber 26, and gas is discharged toward the inner surface of the vessel 4 through the exhaust outlet 23b after gas temperature and velocity have been interrupted by convection of the gas in the puffer chamber 26. This structure interrupts a remarkable degradation of dielectric strength in the vessel resulting from direct blowing of hot gas onto the inner surface of the vessel 4.
Abstract:
In an interrupter of a gas circuit breaker that uses springs as a driving source, a contact having a fixed contact and movable contact is opened and closed so as to turn on and off electric power. An operation unit generates driving force for driving the movable contact. A link mechanism interconnects the operation unit and interrupter. The link mechanism has a first lever linked to the operation unit, a second lever linked to the movable contact, and a rotational shaft to which the two levers fit. The operation angle of the first lever with respect to a direction parallel to the motion direction of the movable contact differs depending on whether the contact is open or closed. The gas circuit breaker operates at high speed without the energy of the driving source being increased.
Abstract:
A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein a single shock absorber absorbs the shock in both the breaking action and the closing action of the moving contact.
Abstract:
A fluorine-containing resin-coated pressure roller exhibiting excellent anti-toner soiling characteristic even at low roller temperatures is provided. The pressure roller includes a cylindrical metal substrate, and a rubber elastic layer, an adhesive layer and a fluorine-containing resin release layer disposed in this order on and successively coating the cylindrical metal substrate. The pressure roller has a surface exhibiting a micro-rubber hardness of at most 50 deg., a contact angle with water of at least 105 deg. and a ten point-average surface roughness Rz of at most 3.0 &mgr;m. The pressure roller may be suitably combined with a fixing film to provide a film heating-type fixing device suitably used in an electrophotographic image forming apparatus.
Abstract:
Disclosed herein is a fluororesin-coating process, which comprises the steps of inserting a base having powder of the fluororesin on its surface in the interior of a cylindrical face transfer member, and heating both base and face transfer member by means of an infrared heater from the outside of the face transfer member, thereby heating them in a state that the fluororesin powder layer is pressed by the face transfer member making good use of a difference in coefficient of thermal expansion between the base and the face transfer member to form a fluororesin layer.
Abstract:
A heat-pressure fixing device for fixing a toner image is composed of a fixing member, a pressure member and an oil applicator for applying dimethylsilicone oil as a release oil. The fixing member is surfaced with dimethylsilicone rubber having a storage modulus E' satisfying 1.0.times.10.sup.6 dyn/cm.sup.2
Abstract translation:用于固定调色剂图像的热压定影装置由用于施加二甲基硅油作为脱模油的固定构件,压力构件和油涂布器构成。 固定构件用保持模量E'满足1.0×10 6 dyn / cm 2
Abstract:
A toner fixation film has an exothermic layer within which an eddy current is induced with application of a magnetic field and then heat is generated. The exothermic layer is a composite layer in which an exothermic part and resin part coexist. The toner fixation film can offer a sufficient heat generation necessary for toner fixation, and has enough flexiblity to permit curvature separation. A toner fixation apparatus comprises the toner fixation film and at least one coil for producing an alternating magnetic field for eddy current induction.
Abstract:
Objects are to ensure a required depressing force and puncture speed when a needle tube is punctured in the skin, and to be able to reliably situate a needle tip of a needle tube in the upper layer of skin. A needle injection assembly 2 includes a needle tube 5 having a needle tip 8 that can be punctured in a living body, a hub 6 that holds the needle tube 5, an adjustment section 12, a stabilizing section 13, and a puncture speed securing member 7. The adjustment section 12 is provided around the periphery of the needle tube 5 and has a needle projection surface 12a, from which the needle tip 8 of the needle tube 5 projects. The stabilizing section 13 extends from the hub 6, is disposed to surround the needle tube 5 and has an end face 13a that comes in contact with the skin when the needle tube 5 is punctured in the living body. The puncture speed securing member is provided at the adjustment section 12 or stabilizing section 13 such that the puncture speed securing member moves along the axial direction of the needle tube 5. The puncture speed securing member 7 is brought into contact with the skin ahead of the needle tip 8 of the needle tube 5 when the needle tube 5 is punctured in the living body and ensures the speed and depressing force as desired when the needle tube 5 is punctured in the living body.
Abstract:
A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein a single shock absorber absorbs the shock in both the breaking action and the closing action of the moving contact.