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.
Patent No.:
Date of Patent:
Sep. 24, 2002
Filed:
Jan. 29, 2002
Jung-Chang Jong, Chungli, TW;
Jenn Feng Industrial Co., Ltd., Ping-Chang, TW;
Abstract
A locking device for output shaft of electric tools includes a plurality of brake pads arranged as a circle in a passage in a casing and the brake pads can be limited by a driving disk to co-rotate with a cam mounted on an output shaft. When the output shaft is rotated manually, the brake pads are pushed by the cam and contact the inside of the passage so as to secure the output shaft to output a torque. The driving disk has a hole wherein two hill portions extend from two opposite sides of the hole. The output shaft extends through the hole. A cover plate is mounted to the driving disk and has an aperture whose two opposite sides are located alignment with the two opposite sides of the hole in the driving disk. The driving disk has pawls on a surface thereof and limit the brake pads not to contact the inside of the passage.