| 摘要 |
A device for putt-practice is disclosed. This device has a first casing opened at its opposite ends, with a speed sensor provided at each end of the first casing and a ball inlet formed at one end of the first casing. A second casing, opened at its opposite ends, is axially connected to an end of the first casing, with a transparent window provided at the upper portion of the second casing for guiding a backstroke movement of a putter during an act of putting. This second casing also has a displaying means for displaying a target putting distance preset by a user, a practical backstroke distance of the putter, and putting results after the act of putting. The device of this invention thus allows the user to preset a desired putting distance, and senses the backstroke distance of a putter during an act of putting in accordance with the preset putting distance. The user is thus allowed to putt with a precise backstroke of the putter. This device also senses the moving velocity of a putted ball during an act of putting, and converts the sensed moving velocity into a moving distance of the putted ball prior to informing the user of the moving distance of the ball, thus allowing the user to practice the putting while appropriately changing his/her putting strength in accordance with the target putting distances
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