摘要:
[Object] To provide a durable liquid-sealed mount that allows a relative displacement between a stud and a housing, i.e., large strokes, has good cushioning properties, has good damping properties by inhibiting cavitation from generating even if high frequency vibration is introduced, and can still absorb small amplitude and high frequency vibration. [Solving Means] A liquid-sealed mount 1 is attached between a first member and a second member for controlling vibration introduced to the first member or the second member and includes a cup-shaped housing 10, a stud 20, a cap member 30, a diaphragm 40, highly viscous liquid 50, air, a movable damping plate 70, and a support member 80. The support member 80 is positioned between a lower end of the stud 20 or the movable damping plate 70 and the diaphragm 40 and transmits a load in a compression direction applied to the stud 20 to the diaphragm 40.
摘要:
A liquid sealed mount (10) is constructed from a vibration damping body (13) and a ring-like elastic body (14). The vibration damping body (13) is attached to a vehicle body frame (11), and the elastic body (14) absorbing vibration is assembled into between the vehicle body frame (11) and a member (12) on the bottom wall side. Because the vehicle body frame (11) takes a load, a case (16) is not deformed. Since high-strength is not required for the vibration damping body (13), weight and cost of the mount are reduced and the mount is reduced in size. Because a load on the elastic body (14) acts in the compression direction, cracks do not occur in the elastic body (14). Because the mount has both a vibration absorption function and a vibration damping function, it has sufficient vibration damping performance.
摘要:
A torsional damper pulley that has improved versatility and is easy to produce, and whose production costs can be reduced. A torsional damper pulley comprises a hub (11) fixed to a rotation shaft of an internal combustion engine, a ring-shaped pulley main body (10) provided coaxially with a ring-shaped fixing portion (11b) on the outer periphery of the hub, and an elastic body (13) interposed between the outer periphery of a flange and the inner periphery of the pulley main body. The pulley main body (10) comprises a ring-shaped frame body (12) having a substantially U letter-shaped cross section and having a concave portion (15) opened at one side in an axial direction of the frame body, and an ring-shaped inertia mass body (14) axially inserted and fixed in the concave portion (15). The inertia mass body includes a layered body formed with circular ring-shaped plates (14a) laid over one another and joined together. The inertia mass body is fixed in position by being pressed into the concave portion.
摘要:
A viscous damper improved in general versatility, easy to produce, and capable of reducing the production cost. The viscous damper is constituted of an annular inertia mass element 14 housed with a damping liquid inside a case 10, and a hub 11 for fixing the case to a revolving shaft of an internal combustion engine. The case is constituted of a case body 12 substantially U-shaped in section, and a cover 7 for closing an open portion 12d toward one side in an axial direction of the body to be liquid- sealed, and a closed chamber 13 is defined inside. The inertia mass element is formed by overlaying a plurality of annular plates 14a and bonding them. The inertia mass element is supported at both sides in an axial direction and in a diameter direction by thrust bearings 5 attached to holes 8 of the annular plates at both sides in the axial direction of the inertia mass element, and a journal bearing 6 attached to an concave groove 9 of an inner circumferential portion of the inertia mass element, and the inertia mas element is placed inside the closed chamber 13 rotatably in a circumferential direction.
摘要:
A hollow article is manufactured to have a configuration in which the wall thickness of each of both end portions changes multidirectionally with extremely high accuracy. A device for first pushing a thermoplastic resin into a cavity (9) of a neck mold (6) in contact with an annular orifice nozzle (30) for plastic, and then manufacturing a tubular parison 18a having various different cross sections throughout the whole length with moving the neck mold apart from the annular orifice nozzle, a controller for a drive unit for moving the neck mold onto/apart, provided so as to be operable while the neck mold (6) is moving apart from the annular orifice nozzle (30), and a controller for a drive unit for changing an outlet gap (3) of the annular orifice nozzle, and means for increasing the speed from zero while the neck mold is moving apart from the annular orifice nozzle, are provided, a nozzle mouthpiece constituting the annular orifice nozzle (30) is multi-divided vertically and laterally, the divided part is disposed so as to be able to reciprocate laterally, a part (2a) of the upper portion of the nozzle mouthpiece is replaced with a blow mold 11, and further a part lower than it holds the filling-up thermoplastic resin upon blowing and is released when a product is taken out.