Vibration-isolated power tool

Tool driving or impacting – Impacting devices – Impact transmitting anvil

Patent

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Details

1731621, 1731622, 403224, 403225, B25D 904

Patent

active

050545620

ABSTRACT:
A hand-held power-driven tool for operating a work member in conditions in which fairly extreme vibrations are generated is constructed of rigid parts isolated from each other by elastomer shock-absorbing material arranged between the parts in laminar fashion in which certain of the layers are of different Shore A hardness as respects each other. The layers are also formed with different thicknesses and are introduced into an annular space between the parts in pourable condition, each layer being permitted to set up before the next layer is pourable, resulting in bonding of the elastomer layers to each other as well as to the parts. A novel supporting structure is disposed between the parts to space them in condition to receive the elastomer material and the structure is permitted to remain between the parts in such isolated or shock-absorbing fashion as to improve the vibration-minimizing charactreistics of the overall design.

REFERENCES:
patent: 728692 (1903-05-01), Fales
patent: 2725692 (1955-12-01), Andreae
patent: 4085832 (1978-04-01), Gaines et al.
patent: 4648468 (1987-03-01), Honsa
patent: 4771833 (1988-09-01), Honsa
patent: 4871150 (1989-10-01), Le Salver et al.

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