Patent · US Active

Joint locking mechanism of passive robotic arm

US11364083B2 · kind B2 · utility

0Cited by

2References

4Claims

0Family size

Assignee

Soochow University · CN

Inventors

Shaolong Kuang · Suzhou, CN
Jinzhong Li · Taizhou City, CN
Li Zhang · Kunshan, CN
Andi Lin · Suzhou, CN
Liansen Sha · Suzhou, CN
Shumei YU · Suzhou, CN
Fengfeng Zhang · Nanhu, CN
Lining Sun · Suzhou, CN

Key dates

Filing date	Jan 17, 2018
Grant date	Jun 21, 2022
Priority date	—
Expiry date	Jan 21, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2125/40
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A joint locking mechanism of a passive robotic arm includes: an output assembly, including a joint output shaft, and a friction disk fixed to the joint output shaft; a braking assembly, including a threaded shaft arranged coaxially with the joint output shaft, a threaded sleeve threaded to the threaded shaft, a rotary disk connected fixedly to the threaded shaft, an end cap rotatable relative to the rotary disk, and a scroll spring generating a rotational force on the threaded shaft. The scroll spring has one end connected fixedly to the end cap and the other end connected to the rotary disk or the threaded shaft. The threaded sleeve is abutted tightly against the friction disk.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.