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:
Jun. 25, 2013
Filed:
Nov. 16, 2009
Shuuji Hori, Oyama, JP;
Mitsumasa Akashi, Oyama, JP;
Hiroyuki Chikugo, Oyama, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
An electric lever device includes a detent mechanismbetween the rotational center shaftand the handgrip. The detent mechanismincludes a pressing unitincluding a through holeformed in an axis Cdirection of the operation lever, an extension coil springinserted into the through holeand ballsandprovided on both ends of the extension coil springfor generating pressing force in the axis Cdirection, and a guide unitfor guiding movement in a circumferential direction of the axis Cand changing the pressing force by changing a guide width in the axis Cdirection to apply a load to the movement of the operation levertogether with pulling force of a twisted coil spring