초록 ▼

A damper comprising within a casing filled with viscous fluid a number of movable discs to be moved in response to the transmitted external force and a number of not interlocked fixed discs arranged in an alternative arrangement, wherein both movable and fixed discs are axially deflectable can maint

A damper comprising within a casing filled with viscous fluid a number of movable discs to be moved in response to the transmitted external force and a number of not interlocked fixed discs arranged in an alternative arrangement, wherein both movable and fixed discs are axially deflectable can maintain even clearances between the movable and the fixed discs due to the alignment effect of the discs without undergoing unreasonable stress that can damage the discs. The allowable limit of deflection of the fixed and movable discs can be made adjustable so as to modify the total drag of the damper. Sources of resilient restoring force may be provided to enhance the capability of adjustment. Moreover, the number or the size of the movable and/or the fixed discs can be made alterable to effectively modify the drag of the damper.

대표청구항 ▼

A multi-disc damper using viscous fluid comprising within a casing a number of movable discs provided on a rotary shaft capable of being rotated by external force so as to be rotated with the shaft; a number of fixed discs not interlocked with the rotary shaft for being free of rotary movement and a

A multi-disc damper using viscous fluid comprising within a casing a number of movable discs provided on a rotary shaft capable of being rotated by external force so as to be rotated with the shaft; a number of fixed discs not interlocked with the rotary shaft for being free of rotary movement and arranged in an alternating arrangement with the movable discs; a viscous fluid material filling the space between the movable and the fixed discs; wherein said fixed discs are not rotatable around the rotary shaft due to engagement with the casing but are axially deflectable and the movable discs are also axially deflectable; and means, provided on said rotary shaft, for adjusting the overall drag of the damper; said adjusting means successively engaging, and thereby rotating, said movable discs so that the overall drag of the damper varies according to the number of movable discs engaged.