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. 25, 2001
Filed:
Oct. 08, 1999
Hirokazu Ohkawa, Kobe, JP;
Mitsuhiko Takahashi, Kobe, JP;
Bando Chemical Industries Ltd., Kobe, JP;
Abstract
A block-type heavy-duty power transmission V-belt including a large number of blocks fixedly engaged with tension members by fitting the tension members in fitting grooves formed on side faces of the blocks. In a reinforcing member embedded in each of the blocks, a beam angle between a vertical center line of an upper beam part disposed above the fitting groove and a pulley groove face closer to the center of a pulley than a portion of the pulley in contact with an upper contact part of the block is 90° or more. In this manner, to the base of the upper beam part is applied merely tensile stress derived from a shearing force working in a lengthwise direction of the belt between the block and the tension member, or tensile stress reduced correspondingly to compressive stress derived from downward bending moment applied to the upper beam part due to a reaction force from the pulley groove face. As a result, the stress applied to the base of the upper beam part can be reduced, so as to increase the transmission load of the belt without increasing the weight of each block.