| 摘要 |
In a motor-driven fastener machine having a base, an anvil on the base, a fastener driving mechanism mounted for movement relative to the base, the improvement comprising driving and control means also mounted on the base for relative movement with the base to cause the fastener driving mechanism to drive the fastener against the anvil; rotary drive means mounted on the driving and control means such rotary drive means including eccentric means carrying shaft means; follower arm means mounted between (1) the base about a second pivot means spaced from the first pivot means, and (2) the rotary drive means such arms means including eyelet means for surrounding and engaging the eccentric means; transmission means connected to the rotary drive means for causing the driving and control means carrying such shaft means to move through a cycle of movement including a reciprocating path; and fastener mechanism engagement means on the driving and control means slidably engageable with the fastener driving mechanism which engagement means causes at times the fastener mechanism downwardly and at other times causes the driving and control means to move the fastener mechanism upwardly. |
