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:
Dec. 02, 1986
Filed:
Jul. 18, 1984
Arne Johansson, Karlskoga, SE;
Torsten Larsson, Nybro, SE;
AB Bofors Wear Parts, Bofors, SE;
Abstract
This invention relates to a wear-parts system for earth-moving machines such as digger, loading, and mining machines. This wear-parts system consists of a holder (2, 23) and at least one protruding wear-part (8, 24) in the form of a tooth or similar fixed on the front of the holder (2, 23) by means of a wedge or other locking device (15, 16, 38). According to the invention the wear-part lands directly against the holder within a forward (5, 25) and a rear landing area (7, 27) in which a landing free from play within the forward landing area (5, 25) is achieved by means of a wedging effect between the wear-part (8, 24) and the holder (2, 23) when the wear-part is pressed or drawn backwards into the holder while a landing free from play is achieved between both these parts within the rear landing area (7, 27) by means of the locking device (15, 16, 38) pressing two angled relative to each other landing surfaces (42, 43) in the rear of the wear-part against two opposite equivalently angled landing surfaces (40, 41) in the holder.