| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutter good to use. SOLUTION: At a grasping handle 1, both of right and left grasping surfaces 12 in a projecting and recessed state are formed. At both of the right and left grasping surfaces 12, both of upper and lower horizontal grooves 13 and 14 are formed, extending in a longitudinal direction from the head part 7 to the end part 8 of the grasping handle 1 in a front and rear direction X, respective vertical grooves 15, 16 and 17 are formed, extending in a width direction and in a vertical direction Z and crossing with the horizontal grooves 13 and 14 at a crossing part 18 to communicate, and projecting parts 22 for placing the fingers are formed between the respective vertical grooves 15, 16 and 17. When the grasping surfaces 12 are divided into head part side areas P, end part side areas Q and intermediate areas R, an interval L17 in the front and rear direction between the vertical grooves 17 adjacent to each other in the intermediate areas R are set to be longer than intervals L15 and L16 in the front and rear direction between the vertical grooves 15 and 16 adjacent to each other in the head part side areas P and the end part side areas Q and to be longer than the dimensions G15, G16 and G17 in the front and rear direction of the respective vertical grooves 15, 16 and 17 in the head part side areas P, the end part side areas Q and the intermediate areas R. COPYRIGHT: (C)2005,JPO&NCIPI
|
