| 摘要 |
A golf putter head with a front edge is used for striking a golf ball in an essentially linear contact area horizontal to the ground when putting and an opposed back edge. A length is defined between a toe edge which extends from the front edge to the back edge of the blade and an opposed heel edge, and a thickness is defined between a top side bordered by the edges and an opposed bottom side. The golf putter includes a non-horizontal groove on the front edge at least adjacent to a ball contact portion of the head defined by a non-horizontal projection perpendicular to the tangent of the arc of the face of the putter head corresponding to the non-horizontal groove perpendicular to the tangent of the arc of the face of the putter head.
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