| 摘要 |
PURPOSE: A forward and backward device for a breechblock installed in a gear box of a toy gun is provided to give users feeling of reality by making the back and forth movement of the breechblock. CONSTITUTION: A forward and backward device for a breechblock comprises a slider hole(200), a stopping projection(201), a breechblock operating unit(300), a breechblock(400) and a transfer bar(500). The slider hole is behind formed the top of the gear-box. The breechblock operating unit comprises a main body, a stopping and placing unit(303), a stopping piece(304) and a transfer through-hole(305). The stopping projection is integrally formed on the front side or the lateral part of the main body.
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