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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-5065062-A, on 12 November 1991. 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-2026-000003411

Motor-drive industrial robot

Published
Permanent URL
Classification
Robotics & Automation › Robot Architectures
Inventors
IRIYAMA YOSHIKO, OHTANI YUKIO, UEHARA SATOSHI
Assignee
TOKICO LTD
Original source
US-5065062-A, the United States Patent and Trademark Office, 12 November 1991
Document SHA-256
af35da27293be845bb666e680ed928eccc5384044ea04a0c526d21d8d1c47870

A motor-drive industrial robot which can be used as a painting robot is mainly constructed by a direct-drive motor, a fixed portion such as a base, and a movable portion such as a rotary table, an arm etc. The direct-drive motor for driving the movable portion is constructed by a rotor and a stator. Preferably, the stator is attached to the fixed portion, while the rotor is attached to the movable portion. In order to avoid the generation of sparks in the flammable atmosphere, this robot is designed as the explosion-proof construction, so that the protective gas ie enclosed within the direct-drive motor. This protective gas is supplied into an annular space formed between the rotor and stator via a through hole formed through the stator or rotor. In addition, this annular space is sealed such that the protective gas is not leaked from the direct-drive motor.

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Abstract

A motor-drive industrial robot which can be used as a painting robot is mainly constructed by a direct-drive motor, a fixed portion such as a base, and a movable portion such as a rotary table, an arm etc. The direct-drive motor for driving the movable portion is constructed by a rotor and a stator. Preferably, the stator is attached to the fixed portion, while the rotor is attached to the movable portion. In order to avoid the generation of sparks in the flammable atmosphere, this robot is designed as the explosion-proof construction, so that the protective gas ie enclosed within the direct-drive motor. This protective gas is supplied into an annular space formed between the rotor and stator via a through hole formed through the stator or rotor. In addition, this annular space is sealed such that the protective gas is not leaked from the direct-drive motor.

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Publication information

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Citation

OpenTechnical Publication OT-2026-000003411, “Motor-drive industrial robot,” published September 15, 2026 at 20:24:30 UTC, https://opentechnical.org/p/OT-2026-000003411.

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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.