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. 22, 2020
Filed:
May. 30, 2019
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Hiromasa Tsunashima, Kobe, JP;
Masahide Onuki, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Abstract
A hollow golf club head comprises a face portion having a club face for hitting a ball, and a main body portion including a crown wall, a side wall and a sole wall which extend from the face portion toward the rear of the head. At least one of the walls of the main body portion is provided with a folded portion for facilitating a partial elastic deformation of the main body portion when the face portion hits a ball. The folded portion includes a first folded portion and a second folded portion each extending in the front-back direction of the head while swinging in the thickness direction of the wall. The first folded portion and the second folded portion are continuous with each other and extend along the peripheral edge of the club face, and have different phases in the swing.