OPENTECHNICAL PUBLICATION
OT-2026-000003154

Tool shaft coupler

Published: 2026-09-15T19:39:48.748718Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003154
Categories: Industrial Motion & Power Transmission > Rotary Motion

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ABSTRACT

Apparatus and methods for coupling a driving shaft (60) and a mating tool
shaft (50, 50') to transmit rotational forces and axial tension and
compression between the shafts. The coupler (15) provides for axial tension
transmission through tension transmission surfaces (80, 80') spaced-apart
from torque (54, 54') and compression (55, 55') transmission surfaces
of the mating tool shaft (50, 50'). A separate satefy lock release
attachment (17) is preferably removed during tool shaft rotation and can
automatically hold the driving shaft (60) stopped when used to release the
shaft locking means for a tool change. An optional reversible mechanical
interlock (91, 92) further ensures that the driving shaft (60) will remain
stopped during a tool change. Malfunction (e.g., improper seating) of the
shaft locking means with the attachment ring (70) in place results in a
positive visual indication of the malfunction.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

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OpenTechnical publication OT-2026-000003154
Published 2026-09-15T19:39:48.748718Z
https://opentechnical.org/p/OT-2026-000003154