发明名称 Impact tool
摘要 An impact tool comprising a motor, a hammer 8 that is rotated and axially moved by a drive force of the motor, an anvil 3 that repeats engagement/disengagement from the hammer 8 accompanying rotation and axial movements of the hammer 8 , and a tip tool 4 mounted to the anvil 3 , the anvil 3 comprising a first split piece 3 A, which includes pawls 3 c (first concave-convex part) on an opposite side to the hammer and repeats engagement/disengagement from the hammer 8 , a second split piece 3 B, which includes pawls 3 f (second concave-convex part) engageable with the pawls (first concave-convex part) 3 c of the first split piece 3 A in a direction of rotation, and to which the tip tool 4 is mounted, and a rubber damper (elastic body) 13 interposed between the first and second split pieces 3 A, 3 B to prevent direct contact between the pawls (first concave-convex part) 3 c and the pawls (second concave-convex part) 3 f in the direction of rotation and in an axial direction.
申请公布号 US7416031(B2) 申请公布日期 2008.08.26
申请号 US20060399442 申请日期 2006.04.07
申请人 HITACHI KOKI CO., LTD. 发明人 MURAKAMI TAKUHIRO;KAMIMURA JUNICHI;OOMORI KATSUHIRO;OHTSU SHINKI;INAGAWA HIROTO
分类号 B25D17/11 主分类号 B25D17/11
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