Back to results
US 7,575,523 B2Granted
Golf club head
AssigneeSRI Sports Limited
InventorMasatoshi Yokota
Life of this patent
Estimating the term…
Abstract
A golf club head comprises a head main body being provided with at least one hole having a helical groove on its inner surface, and a damper having a thread on its outer surface and screwed to the hole of the head main body, the damper being made of elastic material at least partially for absorbing vibration of the head main body.
Claims19
A golf club head comprising
- a head main body being provided with at least one hole having a helical groove on its inner surface, the head main body further comprising
- a face portion whose front face defines a club face for hitting a ball,
- a sole portion extending from a lower edge of the club face toward a back face of the club head and
- a turnup wall turned up at a rear side of the sole portion so as to form a gap behind the face portion, and wherein
- the hole is provided in the sole portion or the turnup wall,
- a damper having a thread on its outer surface and screwed to the hole, wherein
- an outer surface of the damper contacting the hole is made of elastic material for absorbing vibration of the head main body.
4 more elements
A golf club head comprising
- a head main body being provided with at least one hole having a helical groove on its inner surface, and
- a damper having a thread on its outer surface and screwed to the hole, and
- the damper being made of elastic material at least partially for absorbing vibration of the head main body,
- wherein the head main body comprises
- a face portion whose front face defines a club face for hitting a ball and
- a gap being provided behind the face portion,
- the damper comprises a protruding portion extending from the hole into the gap, and wherein
- the damper is screwed in the hole so as to come into contact with a back surface of the face portion through the gap.
5 more elements
Dependencies are inferred from the claim text.