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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5755448-A, on 26 May 1998. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003213

Quick release chuck device

Published
Permanent URL
Classification
Tools & Tooling › Clamping Tools
Assignee
POWER TOOL HOLDERS INC
Original source
US-5755448-A, the United States Patent and Trademark Office, 26 May 1998
Document SHA-256
c80f2edbb5d662d132a3d69b1fc59debc691371ee57e3e805409206c08b6d110

A quick-change chuck device has a body member having a recess defined therein for receipt of a circular tool shank. The body member includes a number of tapered slots defined therein in communication with the recess. An outer sleeve member is coaxial about the body member and axially movable relative to the body member. An axial spring mechanism is disposed between the sleeve member and the body member so as to bias the sleeve member longitudinally relative to the body member to a biased position. The sleeve member is axially movable against the biasing force of the spring mechanism to a released position. Tapered pins are seated within each tapered slot. The tapered pins contact a pin engaging surface defined on the inner diameter of the outer sleeve and are forced radially inward within the slots so as to extend into the recess in the biased position of the outer sleeve. The pins are movable radially outward within the slots once the outer sleeve is moved to its released position relative to the body member. The outer sleeve can include a polymer sleeve surrounding a cylindrical insert in which an axially extending slit is disposed through the insert and between adjacent pin engaging surfaces.

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Abstract

A quick-change chuck device has a body member having a recess defined therein for receipt of a circular tool shank. The body member includes a number of tapered slots defined therein in communication with the recess. An outer sleeve member is coaxial about the body member and axially movable relative to the body member. An axial spring mechanism is disposed between the sleeve member and the body member so as to bias the sleeve member longitudinally relative to the body member to a biased position. The sleeve member is axially movable against the biasing force of the spring mechanism to a released position. Tapered pins are seated within each tapered slot. The tapered pins contact a pin engaging surface defined on the inner diameter of the outer sleeve and are forced radially inward within the slots so as to extend into the recess in the biased position of the outer sleeve. The pins are movable radially outward within the slots once the outer sleeve is moved to its released position relative to the body member. The outer sleeve can include a polymer sleeve surrounding a cylindrical insert in which an axially extending slit is disposed through the insert and between adjacent pin engaging surfaces.

1. Drawings

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Publication information

Plain textMarkdownManifestIntegrity record

Citation

OpenTechnical Publication OT-2026-000003213, “Quick release chuck device,” published September 15, 2026 at 19:50:37 UTC, https://opentechnical.org/p/OT-2026-000003213.

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Terms

This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.