Lead screw for moving a head

Details Lead screw for moving a head Lead screw for moving a head

Filed on

1986-01-23

Date issued

1988-03-08

Examiner

Wright, Dirk

Patent Class

Machine element or mechanism

SubClass

Mechanical movements

SubSubClass

Reciprocating or oscillating to or from alternating rotary

Other Related Categories

249 59, 74DIG10, 74 59, F16H 2702, F16H 2902, F16H 2920

Type

Patent

Status

active

Patent number

047292504

Description

ABSTRACT:
A lead screw for moving, for example, a printing head or a magnetic head. The screw is molded from plastics by a split mold comprising a plurality of longitudinally extending sections. It has on its outer peripheral surface a helical groove satisfying the following relationship: ##EQU1## where P: pitch of the groove;

REFERENCES:
patent: 359735 (1887-03-01), Messerle
patent: 2346291 (1944-04-01), Cisski
patent: 2891283 (1959-06-01), Cramer et al.
patent: 3054145 (1962-09-01), Helpa
patent: 3289491 (1966-12-01), Conrad
patent: 3843088 (1974-10-01), McLoughlin
patent: 4030137 (1977-06-01), Dalziel
patent: 4037483 (1977-07-01), Nadal
patent: 4299371 (1981-11-01), Duga
patent: 4440038 (1984-04-01), Potter
patent: 4528607 (1985-07-01), Thompson
Emmelot, "Rescan Drive . . . ", IBM Technical Disclosure Bulletin, vol. 4, No. 6, p. 783, Nov./Dec. 1979.

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