| 摘要 |
PURPOSE: A clamp is provided to easily fix a workpiece and tightly fasten a screwnut by forging a rotary pin. CONSTITUTION: A clamp comprises a rotary pin(2), a U-shaped rod(4), and screwnuts(3). The rotary pin penetrates through a central part of a main body. The U-shape rod penetrates through the upper and lower parts of the rotary pin. The rotary pin and penetrated U-shape rod is vertically fastened by screwnuts. The upper and lower parts of the rotary pin are forged so the screwnuts are tightly fastened without a space between the screwnuts and rotary pin. |
