| 摘要 |
PROBLEM TO BE SOLVED: To provide an auxiliary device of an electric hammer, which auxiliary device can efficiently break a hard concrete ground and also can reduce machine vibrations sensible to a human body, and is gentle to a human being, and can prevent a vibration syndrome, and can reduce the fatigue of an operator because of the easiness of its operation, and is inexpensive. SOLUTION: A heavy body 3 is mounted on the frame 2 of a handcart, which has wheels 17 movable in the forward and backward, and rightward and leftward directions, and is made of steel or aluminum. Steel columns, pipes, etc., 4, 4A, 4B, 4C, 5, 5A, and further circular ring bolts 6, 6A, an electric hammer 10, a push handle 18, etc. are assembled and arranged on the four corners of the frame 2 of the handcart. It was found by an experiment that when the push handle 18 made from the steel pipe 5A was pressed down, the pressure applied to the electric hammer 10 easily showed a breaking power over the power corresponding to two or more persons. In addition, when the handle 18 located in the position apart from the body of the electric hammer 10 was pressed down instead of directly pressing-down the electric hammer 10, the vibration transferred from the machine was small. As a result, it seems that the vibration syndrome may be prevented by this auxiliary device. COPYRIGHT: (C)2006,JPO&NCIPI
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