Metal deforming – Tool and/or tool holder – Having unitary tool-face
Patent
1998-10-21
1999-12-14
Jones, David
Metal deforming
Tool and/or tool holder
Having unitary tool-face
724811, 72462, 724822, B21D 3704, B21D 1122
Patent
active
060002735
ABSTRACT:
The press brake punch holder has a main housing adapted for attachment to the ram of a press brake. A pair of mating wedge strips are disposed within the housing, the lower wedge strip being slidable with respect to the upper wedge strip. A U-shaped channel is disposed between two flanges depending from the side walls of the main housing, the exterior surfaces of the flanges being beveled, the U-shaped channel being slidable vertically between the flanges. A bolt extends through each upper wedge, a slot defined in each mating lower wedge, and a slot defined in the bottom of the housing, in order to thread into holes defined in the U-shaped channel. A support member having a cross shape in cross section depends from the U-shaped channel. A plurality of clamps are bolted into the ends of the side arms of the support member, the clamps being spring biased to clamp the shank of a punch between the clamp and the lower leg of the support member. The upper edge of the clamp is beveled to mate with the beveled edges of the flanges. The lower wedge strip may be pulled along its longitudinal axis, either by mechanical, electrical or hydraulic power, the bolts pulling the U-shaped channel vertically upward, causing the upper edge of the clamps to slide up the side of the flanges, thereby opening the clamps simultaneously and releasing the punch.
REFERENCES:
patent: 4142398 (1979-03-01), Quaas
patent: 4354374 (1982-10-01), Deguchi
patent: 4653307 (1987-03-01), Zbornik
patent: 4733552 (1988-03-01), Leflis
patent: 4787237 (1988-11-01), Houston et al.
patent: 4895014 (1990-01-01), Houston
patent: 5009098 (1991-04-01), van Merksteijn
patent: 5022256 (1991-06-01), van der Meulen
patent: 5065610 (1991-11-01), Yonezawa
patent: 5113686 (1992-05-01), Kawahara
patent: 5121626 (1992-06-01), Baldwin
patent: 5390527 (1995-02-01), Kawano
patent: 5460027 (1995-10-01), Takahashi
patent: 5507170 (1996-04-01), Kawano
patent: 5511407 (1996-04-01), Kawano
patent: 5513514 (1996-05-01), Kawano
patent: 5572902 (1996-11-01), Kawano
patent: 5619885 (1997-04-01), Kawano et al.
patent: 5642642 (1997-07-01), Kawano
patent: 5685191 (1997-11-01), Kawano et al.
patent: 5794486 (1998-08-01), Sugimoto et al.
patent: 5884522 (1999-03-01), Runk et al.
Jones David
Litman Richard C.
LandOfFree
Press brake punch holder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Press brake punch holder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Press brake punch holder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-853857