Drive for backlash-free conversion of motion

Details Drive for backlash-free conversion of motion Drive for backlash-free conversion of motion

1986-05-06

1988-06-28

Callaghan, Thomas F.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74 8922, 74422, F16H 1906

Patent

active

047531193

ABSTRACT:
A drive mechanism is provided for backlash-free conversion of a rotary motion into a linear motion with the aid of a toothed belt and of a drive gear, in particular for a quick and reproducible positioning of tools or tool tables. At least one gear rack adjustable in one direction is present. Arcuate guides are provided at the two sides of the drive gear. The arcuate guides maintain the toothed belt in such engagement with the gear rack that one section receives the load and only a short, defined section of the toothed belt is disengaged from the teeth. Furthermore, the toothed belt is provided as an endless loop.

REFERENCES:
patent: 3151494 (1964-10-01), Sedgewick
patent: 3399578 (1968-09-01), Lindabury et al.
patent: 3824871 (1974-07-01), Loesch et al.
patent: 3850043 (1974-11-01), Tarbox
patent: 3889801 (1975-06-01), Boyer
patent: 4570617 (1986-02-01), Baus

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