| 摘要 |
PROBLEM TO BE SOLVED: To provide a T shape excavation implement excavating a hole on the ground by only alternately repeating rotation and reverse rotation while gripping both ends of a handle by both hands. SOLUTION: The T shape excavation implement is characterized by comprising an excavating member on the end of a rod, the handle 3 the center part of which is installed on the top end of the rod 1, and a cavity 7 installed in the center part of the handle 3, in which a gear 9 is rotatably attached on the top end of the rod 1, and a ratchet 11 rotatably attached in the cavity 7 having tooth feeding blade 10 and engaging with the gear 9 to regulate the rotating direction of the gear 9. COPYRIGHT: (C)2008,JPO&INPIT
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