Miniature impact tool

Details Miniature impact tool Miniature impact tool

1997-05-01

1998-09-08

Smith, Scott A.

Tool driving or impacting

Impacting devices

Hammer head driven by spring

173205, 173120, 30167, B25D 1110

Patent

active

058031839

ABSTRACT:
A miniature impact tool in which a cam is utilized for moving a striker backward by converting rotary motion of a drive shaft to a linear motion. The striker is in contact with a spring/guide pin (plunger) assembly and is moved away from a surface to be struck during a portion of the rotation cycle of the cam. On further rotation the cam surface is cut away and spring action drives the striker forward, causing impact of a cutting tool (chisel) against a workpiece. An improved mechanism utilizing a plurality of cam lobe surfaces provides predetermined and reproducible impact forces on the cutting tool. This mechanism is not adversely affected by vibration of the tool.

REFERENCES:
patent: 3022838 (1962-02-01), Mitchell
patent: 3074155 (1963-01-01), Cootes et al.
patent: 3874460 (1975-04-01), Schmid et al.
patent: 4030556 (1977-06-01), Phillips
patent: 5449044 (1995-09-01), Phillips

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