Abstract

A double impact hammer comprises a hammer head (A1-A12) and a hammer handle (D1-D12). The hammer head contains a sealed and movable block (B1-B12). It has many advantages, such as improved hammering effect, being more accurate, reduced or eliminated vibration resulted from counteraction, simple structure, same shape with the ordinary hammer after resetting of the block. It can be used for striking tools like hack, handle axe, axe, tennis racket, golf pole, and so on.

IPC Classes  ?

• B25D 1/02 - Inserts or attachments forming the striking part of hammer heads
• A01B 1/06 - HoesHand cultivators
• B26B 23/00 - AxesHatchets
• A63B 9/00 - Climbing poles, frames, or stages