OPENTECHNICAL PUBLICATION
OT-2026-000003294

Device for power tools

Published: 2026-09-15T20:04:05.255993Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003294
Categories: Tools & Tooling > Powered Hand Tools

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ABSTRACT

A device on machine tools for transmitting a rotational and/or percussive
movement to a tool (22) has two or three rotational drivers (14) which are
arranged so as to be symmetrical with respect to rotation. The rotational
drivers (14) are stepped and flank parts (16) extending radially to the center
axis (15) alternate with guide portions (17) extending along a cylindrical
outer surface. Locking members (20) which engage in depressions (28) at the
tool (22) are arranged in the region of the rotational drivers (14) for the
axial locking of the tools (10). With the tool holder (10) according to the
invention, tool shafts having diameters between 8 and 12 mm can be clamped
without converting or modifying the tool shafts. Good true running
characteristics can be achieved in spite of the stationary rotational drivers
(14).

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.

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OpenTechnical publication OT-2026-000003294
Published 2026-09-15T20:04:05.255993Z
https://opentechnical.org/p/OT-2026-000003294