Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1977-04-15
1978-06-20
Cohan, Alan
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74813L, 74826, 29 485A, 408 35, 82 36A, B23B 2932
Patent
active
040954897
ABSTRACT:
A vertical support shaft supporting a tool support is slidably and rotatably supported in a base. A gear member is rotatably but non-slidably mounted on the support shaft and is provided with a threaded portion threadedly engaged with the base. A sleeve member having a rack engaging with the gear member is moved axially to lift the tool support to an upper position for an index operation. The sleeve member is provided with a notch to receive a resiliently urged lock shaft for restraining the axial movement of the sleeve member when the tool support is moved to the upper position.
REFERENCES:
patent: 3545317 (1970-12-01), Shultz
patent: 3572194 (1971-03-01), Cafolla
patent: 3888140 (1975-06-01), Mackelvie
patent: 3999264 (1976-12-01), Carmen
Cohan Alan
Toyoda-Koki Kabushiki-Kaisha
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