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This is a record of a document published elsewhere, first published by the European Patent Office, as EP-4711642-A1, on 18 March 2026. 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-2026-000001781

Component-tightening structure and strain wave gearing

Published
Permanent URL
Classification
Industrial Motion & Power Transmission › Rotary Motion
Inventors
SHIROKOSHI NORIO
Assignee
HARMONIC DRIVE SYSTEMS
Original source
EP-4711642-A1, the European Patent Office, 18 March 2026
Document SHA-256
6c25fb4dc77610bc75aaf1b70191709106875b62b4370e19bc41379fd909c622

Abstract

Provided is strain wave gearing (1), in which on a fastening surface between a boss (33) on an externally toothed gear (3) and a first end plate (8), formed are tapered fastening surfaces (331, 81), inclined with respect to an orthogonal plane that is orthogonal to a central axis (1a). Additionally, on a fastening surface between an internally toothed gear (2) and a second end plate (10), tapered fastening surfaces (21, 101) are formed. Due to engagement of the tapered fastening surfaces (331, 81) and engagement of the tapered fastening surfaces (21, 101), a firm fastening state can be formed, and radial-direction displacement of the first and second end plates (8, 10) that arises due to radial-direction load can be reduced. Decentering between a wave generator (4) and support bearings (7, 9) originating in the radial-direction displacement can be prevented or controlled, and the acting of unnecessary radial force on the wave generator (4) can be averted.

Publication information

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Citation

OpenTechnical Publication OT-2026-000001781, “Component-tightening structure and strain wave gearing,” published September 15, 2026 at 19:08:38 UTC, https://opentechnical.org/p/OT-2026-000001781.

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