Vibration-free handle

Details Vibration-free handle Vibration-free handle

1989-05-26

1991-07-16

Rowan, Kurt

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Handle, handle component, or handle adjunct

Luggage-type

1731622, B25G 100

Patent

active

050312731

ABSTRACT:
The vibration-free handle comprises a first rod connected to a vibration source via an attachment, a second rod connected to the first rod at one end thereof with a predetermined inclination, a mass body mounted on the other end of the second rod, and an elastic member provided between the first rod and the vibration source for covering the first and second rods. The elastic member possesses spring constants in three directions, one direction being defined by the direction the vibration source vibrates (z-direction) and the other two directions extending perpendicularly to each other in a plane perpendicular to the z-direction. When the second rod, which serves as a grip of the handle, extends perpendicularly to the z-direction and the vibration source starts vibrating, there appear "vibration knots" in the second rod, at which the vibration amplitude is substantially zero, in three directions. The "vibration knots" reduce the vibration from the vibration source. The amounts of vibration reduction in three directions are respectively adjusted by the inclination between the first rod and the second rod.

REFERENCES:
patent: 2035643 (1936-03-01), Douglass et al.
patent: 4648468 (1987-03-01), Honsa
patent: 4771833 (1988-09-01), Honsa
patent: 4819742 (1989-04-01), Driggers

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