Patent ID: 7007582
Filing Date: 2006-03-07
Classification: B21D,Y10T

Abstract:
1. A die device comprising: a retainer collar being provided on an upper portion of a punch guide so as to be freely turned and fixed wherein a lower punch driver connected to a punch body is being fitted and supported in the punch guide so as to freely move up and down; and an upper punch driver inserted into the retainer collar so as to freely move up and down in a projecting manner; wherein the upper punch driver and an upper portion of the lower punch driver are screwed into each other in an up-down adjustable manner; wherein an engagement concave portion is provided in a vicinity of an outer peripheral portion of the retainer collar in a peripheral direction; wherein a latch member, which is maintained so as to be freely engaged with and disengaged from the engagement concave portion and normally in an engaged state, is provided on the upper portion of the punch guide; wherein when the latch member is moved from the peripheral portion of the punch guide toward the center portion of the punch guide in the radial direction of the punch guide, the latch member is disengaged from the engagement concave portion of the retainer collar, thereby the retainer collar can be turned relative to the punch guide so that the upper punch drive and an upper portion of the lower punch driver are screwed into each other in an up-down adjustable manner.