| 摘要 |
A hammer, for use in absorbing some of the reaction force upon impact, is provided. This hammer included a head and a handle and a connector therebetween. The connector has a hinge and has a spring member. The hinge has a pair of spaced plates fixedly connected to the handle and has a center plate disposed between the pairs of spaced plates and fixedly connected to the head. A hinge pin passes through three respective holes in the three plates. The spring member is a collar composed of a urethane material. The collar encloses the hinge and fits snugly between a flange on the head and a flange on the handle, so that bending of the collar causes a compression force on one side of the collar. The hinge has stop surfaces for limiting tilting of the head in one rotary direction about the hinge pin. The hinge allows tilting in an opposite rotary direction about the hinge pin, and allows compression of the collar. A second embodiment has a spring member which is a bent wire spring member.
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