Golf club head
First Claim
1. A golf club head formed of fiber reinforced plastic in which there is a cavity surrounded with portal shaped walls formed by a face part, a top part and a back part of the head body and provided at the rear of the impact face, characterized by arranging a tubular reinforcement material formed of plastics including reinforcement fibers and disposed, abutting at its both ends on the inner walls of the face part and of the back part, so as to span between them;
- and a face plate made of fiber reinforced plastics and fixed at the front of the face part wall of the head body.
2 Assignments
0 Petitions
Accused Products
Abstract
A golf club head is hollowed out to provide desired light weight characteristics. A tubular reinforcement material formed of plastic including reinforcement fibers, separate from the club head itself, is inserted into the cavity attached at the inner walls of the face and back, so as to span between them to prevent deformation of the head face and to hold the stiffness and mechanical strength required at its impact face.
144 Citations
1 Claim
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1. A golf club head formed of fiber reinforced plastic in which there is a cavity surrounded with portal shaped walls formed by a face part, a top part and a back part of the head body and provided at the rear of the impact face, characterized by arranging a tubular reinforcement material formed of plastics including reinforcement fibers and disposed, abutting at its both ends on the inner walls of the face part and of the back part, so as to span between them;
- and a face plate made of fiber reinforced plastics and fixed at the front of the face part wall of the head body.
Specification
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- Resources
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Current AssigneeDaiwa Seiko Incorporated
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Original AssigneeDaiwa Resort Company Limited (Daiwa House Industry Company Limited)
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InventorsYamada, Magoichi
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Primary Examiner(s)Pinkham, Richard C.
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Assistant Examiner(s)Mosconi, Vincent A.
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Application NumberUS06/552,757Time in Patent Office642 DaysField of Search273/167 R, 273/167 A, 273/167 F, 273/167 H, 273/169, 273/171, 273/174, 273/68, 273/DIG. 7, 273/173US Class Current473/346CPC Class CodesA63B 2209/02 with reinforcing fibres, e....A63B 53/04 HeadsA63B 53/0416 Heads having an impact surf...A63B 53/0433 with special sole configura...A63B 53/045 Strengthening ribsA63B 53/0466 wood-typeA63B 60/00 Details or accessories of g...
