The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 09, 2011

Filed:

Mar. 03, 2010
Applicants:

Qiang Zhang, Shenzhen, CN;

Yundong Qi, Shenzhen, CN;

Inventors:

Qiang Zhang, Shenzhen, CN;

Yundong Qi, Shenzhen, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A47F 5/00 (2006.01); F16M 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A parallel four-bar mechanism is disclosed, having the second and third bars being parallel to each other and having their opposite ends hinged to the first and fourth bars respectively. A stopping block is provided with a stopping slot, and a movable stopping pin is configured to be engageable with the stopping slot. When an actuating member drives the stopping pin to disengage from the stopping slot, the second and third bars are able to translate relative to each other; and when the actuating member drives the stopping pin into the stopping slot, the second and third bars are locked with each other, with the second and third bars not being able to translate relative to each other, and thus the whole parallel four-bar mechanism is locked in a preset angular position.


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