Exhaust mechanism of pneumatic nailing machine

  • US 5,878,936 A
  • Filed: 06/07/1996
  • Issued: 03/09/1999
  • Est. Priority Date: 06/09/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. An exhaust mechanism for a pneumatic nailing device in which a striking cylinder-piston mechanism is accommodated in a body and a striking piston extends through a lower portion of the striking cylinder and is driven to drive a nail when compressed air is supplied to and exhausted from an upper portion of the striking cylinder, the exhaust mechanism comprising:

  • an inner cap arranged adjacent the upper portion of the striking cylinder;

    a cylinder cap covering the inner cap and intersecting a plane perpendicular to a longitudinal axis of the striking cylinder, said plane also intersecting a portion of the striking cylinder;

    an exhaust chamber formed substantially parallel to the longitudinal axis of the striking cylinder and along the body between the inner cap and the cylinder cap; and

    a throttle hole formed in a lower portion of the exhaust chamber, wherein the exhaust air exhausted from the upper portion of the striking cylinder is discharged from the throttle hole via the exhaust chamber.

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