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:
Aug. 31, 1976
Filed:
Jun. 09, 1975
Toshiaki Wagatsuma, Fujisawa, JA;
Kabushiki Kaisha Komatsu Seisakusho, Tokyo, JA;
Abstract
A coupling capable of selectively connecting and disconnecting tractor-scraper units so that they may operate either in push-pull tandem relation or individually. A first push block and pulling hook are arranged at the rear of the front tractor-scraper unit, whereas on the front of the rear unit there are arranged a second push block for contact with the first push block and a ball for engagement of the pulling hook. The second push block is pivotally supported at its top end, and the bail is pivotally connected to the bottom end of the second push block. Arranged between the bottom end of the second push block and the tractor framework of the rear unit are a pair of what are herein termed two-way shock-absorber assemblies which are dually effective to minimize the shocks caused upon contact between the first and second push blocks and upon engagement of the pulling hook by the bail.