Patent ID: 6363826
Filing Date: 2002-04-02
Classification: B23D,B26F,Y10T

Abstract:
A paper punch machine die assembly comprising:a front portion and a back portion; wherein said front portion comprises an elongated die having a longitudinal axis, a slot parallel to the longitudinal axis for receiving paper and a plurality of die holes extending perpendicularly to the longitudinal axis; and wherein said back portion comprises: an elongated pin-retainer plate generally parallel to said elongated die and having a front surface, a back surface, a longitudinal axis, and a plurality of retainer holes extending through said plate from the back surface to the front surface; a plurality of punch pins slidably extending through said retainer holes, each punch pin having a first end with a head in back of said plate and abutting said plate back surface and a second end extending from said plate front surface to said elongated die and slidably received in one of said die holes; wherein the die assembly further comprises: a connector slidably connecting the pin-retainer plate to the front portion so that the pin-retainer plate slides forward and backward relative to the front portion; a flexible strap connected at one end to the back surface of the pin-retainer plate, extending across the heads of said pins and holding the pins in the pin-retainer plate, the strap flexing away from the pin heads to reveal the pin heads for removal; and a latch releasably connecting a second end of said strap to the pin-retainer plate.