Rotation restricting device, robot joint and walking assistance device

• Main Author: MAEKITA WATARU
• Format: Patent
• Language: English
• Published: 30.12.2014
• Subjects: ARTIFICIAL RESPIRATION; BANDAGES, DRESSINGS OR ABSORBENT PADS; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSESOR SPECIFIC PARTS OF THE BODY; BEARINGS; BLASTING; CHAMBERS PROVIDED WITH MANIPULATION DEVICES; CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BYMECHANICAL FEATURES ONLY; CONTROLLING; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FLEXIBLE SHAFTS; FOMENTATION; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HAND TOOLS; HEATING; HUMAN NECESSITIES; HYGIENE; LIGHTING; MANIPULATORS; MASSAGE; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING ORSTIMULATING REFLEX POINTS IN THE BODY; PHYSICS; PORTABLE POWER-DRIVEN TOOLS; PROSTHESES; REGULATING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SAFETY DEVICES IN GENERAL; SHAFTS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS; WEAPONS

A rotation restricting device for restricting the rotation of a rotating part with respect to a base part, comprising a stopper supported so as to be capable of rotating around an axis of rotation of the base part, a lock mechanism capable of switching between a state preventing and a state allowing the rotation of the stopper with respect to the base part, a first block provided on the rotating part and capable of moving between a position interfering with and a position not interfering with a rotation path of the stopper, and a second block provided on the rotating part and capable of moving between a position interfering with and a position not interfering with the rotation path of the stopper. In a state where the rotation of the rotating part with respect to the base part is not restricted, both the first block and the second block are in the position interfering with the rotation path of the stopper, and the stopper is positioned between the first block and the second block.