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:
Feb. 09, 1993
Filed:
Nov. 21, 1991
Kenji Misuda, Kawagoe, JP;
Norihito Bando, Kawagoe, JP;
Kabushiki Kaisha Komatsu Seisakusho, Tokyo, JP;
Komatsu Mec Corp., Tokyo, JP;
Abstract
A linkage mechanism of a work implement installed in a loading vehicle such as a shovel-loader or the like, which is adapted to vertically move a bucket as held in a horizontal state without operating tilt-cylinder, while preserving the function of the Z-bar linkage in the prior art; in which linkage mechanism, when the distance from a pivotable support point (A) between a bucket (3) and a lift arm (1) to a pivotable support point (B) between the lift arm (1) and a bellcrank (5) is represented by (X) and the distance from the above-mentioned pivotable support point (B) to a pivotable support point (O) between the lift arm (1) and a vehicle body (9) is represented by (Y), they are preset so as to fulfil Y/X=.alpha., and also, first and second triangles (.DELTA.ABC, .DELTA.OBE) formed by the liftarm (1) and the bellcrank (5) on the vehicle body side and on the bucket side, as well as a third triangle (.DELTA.ADC) formed by a tilt rod (6) and the bucket (3) and a fourth triangle (.DELTA.OFE) formed by a tilt cylinder and the vehicle body (9) are preset so as to respectively fulfil a mutually similar figure relation.