Relatively Rotating Friction Surfaces (e.g., Drum Type) Patents (Class 267/215)
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Publication number: 20090121401Abstract: Disclosed is an assembly for damping vibrations on a wheel that is used for driving a secondary unit of a vehicle. Said assembly comprises a damping device on the driving wheel that is mounted on a hub which is connected to a drive shaft of the secondary unit. A torsional vibration damper that is combined with a friction clutch is provided as a damping device. The friction clutch is fitted with at least one friction surface facing the hub and at least one second friction surface facing the friction ring in order to non-positively and/or positively couple the driving wheel to the hub via the damper cage of the torsional vibration damper such that torque is transmitted in a vibration damping manner from the driving wheel to the hub via the damper cage. The second friction surface is located between a plate spring and a support disk. The plate spring is connected to the damper cage while the support disk is connected to the hub.Type: ApplicationFiled: October 13, 2008Publication date: May 14, 2009Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Steffen Lehmann, Dimitri Sieber
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Patent number: 6695103Abstract: The invention concerns a spring barrel module having two chambers. A spring is located in the first chamber and a damper in the second chamber. The unidirectional damper is implemented by a clutch means that connects the damper plate to the spring shaft when the tightened spring is released, whereby the rotation of the damper slows down. Correspondingly, the clutch loosens the connection between the damper plate and the spring shaft when the spring is tightened. In low temperatures (e.g. below 0° C. degrees) the damper fails to dampen the rotation. The unidirectional feature of the damper improves both usability and durability. Breakage of the mechanical components of the spring barrel is prevented by an overload clutch, which means that the spring barrel module will tolerate even relatively rough handling of the equipment.Type: GrantFiled: April 23, 2002Date of Patent: February 24, 2004Assignee: Nokia CorporationInventors: Ilpo Kauhaniemi, Antti Rönkkö, Matti Kosonen
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Patent number: 5692367Abstract: A device is disclosed for damping the vibrations of a package on spinning, twisting or winding machines. Damping elements act on the swivel-mounted package holders, which damping elements are arranged on the machine frame and which are effective on the swivel direction of the package holders. The package holders are supported with tube sections on a swivel axle which is secured to the machine, and support the packages, which are pressed onto a driving roller and are rotatably supported thereon. In the swivel direction in which the packages are lifted from the drive roller, the damping is greater than in the swivel direction in which the packages are pressed onto the drive roller. The cylindrical outer contour of each individual tube section is surrounded, at a predetermined angle of contact, by a close fitting brake belt which is actuated by friction. One end of the brake belt is secured in a non-movable way on a stationary mounting, while the other end is secured to a loading spring.Type: GrantFiled: March 19, 1996Date of Patent: December 2, 1997Assignees: Fritz Stahlecker, Hans StahleckerInventor: Fritz Stahlecker
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Patent number: 5660254Abstract: A dry rotary damper includes a housing defining an internal chamber, the housing having a closed base portion, a top portion with a through opening, and a rotor-engaging internal surface. A rotor has a shaft rotatably passing through the opening and an engagement surface in sliding frictional engagement with the rotor-engaging internal surface of the housing. A deflection member is mounted within the chamber. An edge part of the deflection member impinges upon the rotor and the deflection member is deflected for resiliently urging the engagement surface into frictional engagement with the rotor-engaging internal surface of the housing.Type: GrantFiled: December 4, 1995Date of Patent: August 26, 1997Assignee: Illinois Tool Works Inc.Inventor: Louis M. Spoto
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Patent number: 5529296Abstract: A pedal return device is provided for controlling operation of a pedal member. In particular, the pedal return device imparts a resistive force which resists movement of the pedal member. In the case of an automobile accelerator pedal, this feature allows the driver to more easily maintain a given level of pedal actuation. However, the resistive force is made dependent on whether the pedal member is actually being depressed. Accordingly, once a force applied to the pedal member is removed, the resistive force is correspondingly and assuredly eliminated to permit the pedal member to be reliably returned to an initial rest position by a restoration force generating device provided.Type: GrantFiled: November 3, 1993Date of Patent: June 25, 1996Assignee: Nippondenso Co., Ltd.Inventors: Yasunari Kato, Hiroaki Yamaguchi, Kazuomi Ota
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Patent number: 5272933Abstract: A motor vehicle rack and pinion steering gear having torsional damping by friction between an annular plastic damper ring on a housing of the steering gear and a journal surface on a pinion shaft of the steering gear. The damper ring has an outer wall press fitted in a pinion shaft bore of the housing to nonrotatably mount the ring on the housing and a plurality of flexible inner fingers resiliently bearing against the journal surface. An annular metal spring is disposed on the damper ring and includes a plurality of integral legs bearing against the flexible inner fingers of the damper ring to press the fingers against the journal surface.Type: GrantFiled: September 28, 1992Date of Patent: December 28, 1993Assignee: General Motors CorporationInventors: Gregory P. Collier, Michael P. Anspaugh, Terry E. Burkhard