ゴルフ用テイ

Japanese Patent JP4331299

B2

A golf tee includes a shaft-shaped wooden base or leg. A ball receiving part formed of a plastic material is removably installed on an upper end of the base such that a golf ball can be placed on the ball receiving part. A plurality of substantially circular through-holes are formed through the ball receiving part. A cylindrical connection portion is formed integrally with the ball receiving part. Linear projection portions are formed on an inner wall of the connection portion such that each projection portion is triangular in section and extends continuously in an insertion-removal direction of the base. The projection portion is arranged such that as the level of the projection portion becomes nearer to an innermost end of the connection portion, a projection height thereof from the inner wall of the connection portion becomes increasingly larger. Therefore, as the level of the projection portion becomes nearer to the innermost end of the connection portion, the inner diameter of the projection portion becomes decreasingly smaller. A through-hole provides communication between a ball receiving surface of the ball receiving part and the interior of the connection portion with each other in the thickness direction of the ball receiving part.

JPH0582459

[Name of device] Golf tee

Kiyomi Mizohata

JP2406499A

September 16, 2009

February 01, 1999

Click for automatic bibliography generation  

Kiyomi Mizohata

A63B57/10; A63B102/32

JP58153865U
JP52142470U
JP4015970U
JP1190375A
JP9009781A
JP4018553U
JP56135767U
JP53078170U
JP2098972U
JP50003671U
JP62013808A
JP49107467U
JP5309150A
JP5500183A

Masahiro Okada

Previous Patent: トルクドライバー及びこれに用いるロータリスイッチ

Next Patent: WEAKLY ACIDIC AQUEOUS SOLUTION FOR CLEANING PLASTIC