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:
May. 18, 2021
Filed:
Mar. 30, 2020
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Kenji Takasu, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Hyogo, JP;
Abstract
A shaft includes a plurality of fiber reinforced layers. The fiber reinforced layers include a plurality of hoop layers and a plurality of straight layers. The straight layers include at least one full length straight layer. At least two of the hoop layers and at least two of the straight layers constitute an alternate lamination of the hoop layers and the straight layers. The hoop layers may include a first butt partial hoop layer and a second butt partial hoop layer that is longer in an axial direction than the first butt partial hoop layer. The first butt partial hoop layer may have a weight per unit area of greater than that of the second butt partial hoop layer.