| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control place bristle wood rescue tool, which quickly forms an opening in a reinforced concrete wall for reaching in a building after a disaster and which is portable. <P>SOLUTION: An impact element 10 includes a single body 40 drivable into an external element by force acting on a piston head 22. The single body includes a head and a shaft having a first end integrally coupled to the head, a second end opposite the first end and a central part interposed between the first and second ends. The second end of the shaft is operatively connectable with the piston head to define a joint 46 located remotely from the head. The first end of the shaft has a trailing portion with a diameter similar to that of the central part, a leading portion with a diameter similar to that of the rear end of the head and a taper from the trailing portion to the leading portion. <P>COPYRIGHT: (C)2013,JPO&INPIT |
