Movement conversion device for a hand-held power tool

Details Movement conversion device for a hand-held power tool Movement conversion device for a hand-held power tool

2011-03-01

2011-03-01

Krause, Justin (Department: 3656)

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

C030S392000

Reexamination Certificate

active

07895909

ABSTRACT:
A movement conversion device (4) for a motor-driven, hand-held, power tool (2) for converting a rotational movement into a linear reciprocating movement includes an axially reciprocating spindle (10), a motor-driven driving gear (20), an eccentric member (16) displaceably supported on the driving gear (20) and extending into the connecting link guide (14) provided at a spindle end for converting the rotational movement of the driving gear (20) into the reciprocating movement of the reciprocating spindle (10), the eccentric member (16) having a first position with respect to a rotational axis (D) of the driving gear (20) in which a distance (a) between the eccentric member (16) and the rotational axis (D) is greater than in at least one second position of the eccentric member (16), and a load-controlled spacing device associated with the eccentric member (16) for automatically adjusting the distance (a) between the eccentric member (16) and the rotational axis (D) of the driving gear (20).

REFERENCES:
patent: 2175499 (1939-10-01), Wodack et al.
patent: 3443449 (1969-05-01), Kotarski
patent: 4031763 (1977-06-01), Eisenberg
patent: 5099705 (1992-03-01), Dravnieks
patent: 5134777 (1992-08-01), Meyer et al.
patent: 5907971 (1999-06-01), Sato et al.
patent: 3633888 (1988-04-01), None

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