Browse Prior Art Database

Incremental Axial Shaft Indexer Clutch

IP.com Disclosure Number: IPCOM000117393D
Original Publication Date: 1996-Feb-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Legg, JT: AUTHOR [+2]

Abstract

Disclosed is a clutch that indexes a shaft, axially, a precise distance each index. The clutch, when activated, is one way, non slip. When the clutch is released, the index shaft is free to be positioned, as desired, both axially and angularly about it's axis. The clutch assembly is compact and extremely strong for it's size, and is mounted on a linear actuator. The linear actuator may be an air cylinder, electric solenoid, or a similar device.

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Incremental Axial Shaft Indexer Clutch

      Disclosed is a clutch that indexes a shaft, axially, a precise
distance each index.  The clutch, when activated, is one way, non
slip.  When the clutch is released, the index shaft is free to be
positioned, as desired, both axially and angularly about it's axis.
The clutch assembly is compact and extremely strong for it's size,
and is mounted on a linear actuator.  The linear actuator may be an
air cylinder, electric solenoid, or a similar device.

      In the Figure, the linear actuator (4) is shown in the
retracted position.  The ramp release (8) has engaged the clutch
release (6) and holds the clutch balls (13) away from the clutch cam
(9).  The index shaft (12) is free to move in either direction.  This
is the home position.  Extension of the linear actuator (4) causes
the clutch engagement spring (14) to move the ramp release (8) away
from the clutch balls (13), allowing the clutch cam (8) to clamp the
clutch balls (12) on to the index shaft (12).  As the linear actuator
(4) continues to extend, the clutch housing (7) and the index shaft
(12) move, as a unit, until the adjustable stop (2) contacts the
stroke limiter (3) forcing the linear actuator (4) to stop.  This is
the end of the index stroke.  Retraction of the linear actuator (4)
causes the clutch balls (13) to move away from the clutch cam (8)
releasing the index shaft (12).  As the linear actuator continues to
retract, the index shaft (13) remains...