| 摘要 |
The device has a strap (11) to place around the player's wrist. A leaf spring (10) extends at right angles to the wrist strap and is fastened to it, so that its freely projecting ends (100,200) are placed against the back of the hand and the underarm. The leaf spring consists of a slightly curved steel band, which is pre-tensioned into its straight non-deformed position. The spring is enclosed in a cover of plastic, leather, etc. and has a finger loop (12) at one end (100). |
