For Disabling Of Continuously Actuated Cutter Patents (Class 83/528)
  • Patent number: 8839654
    Abstract: In certain aspects of the invention, punching machines and tools for punching machines are provided that include mechanical devices driven by a driving device of the punching machines and are used to oscillate a tool insert. Such machines and tools can provide an increased frequency of the oscillating movement of the tool insert.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: September 23, 2014
    Assignee: TRUMPF Werkzeugmaschinen GmbH + Co. KG
    Inventor: Werner Erlenmaier
  • Patent number: 5784938
    Abstract: Apparatus for cutting a web, including a frame ((70, 186); a crank (188) mounted for rotation on the frame; an upper platen (210); a pair of linear guides (212) for the upper platen; a first crank arm (196) connected between the upper platen and the crank; a lower platen; second and third crank arms (218, 220) connected between the lower platen and the crank; an upper die shoe (262) mounted to the upper platen; a lower die shoe (260) mounted to the lower platen; a pair of linear guides (264) between the die shoes; and a system (287-290, 298-300) for rotating the crank.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: July 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Joseph Albert Watkins, Thomas Allen Sisson
  • Patent number: 5088370
    Abstract: A sheet material cutting apparatus in which a pair of blades comprising a movable blade and a fixed blade are arranged, and the movable blade reciprocates to cut sheets. A drive device is mounted on the cutting apparatus, which drive device includes a drive arm to actuate the movable blade and a connecting lever having a split groove for connecting the lever to the drive arm. The movable blade is driven with the aid of the connecting lever and the drive arm of the drive device. The drive of the movable blade is controlled by elasticity of the split groove in the connecting lever. When load exceeding a predetermined amount occurs at the movable blade, the split groove in the connecting lever permits the drive arm to come off.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: February 18, 1992
    Assignees: Hitachi Metals Ltd., Yasugi Seimitsu, Ltd.
    Inventor: Takajiro Kondo
  • Patent number: 4879935
    Abstract: A cutter in which a reciprocating knife is driven by an eccentric mechanism. The knife has a drive portion that flexes laterally in a plane perpendicular to the drive axis of the eccentric mechanism. The eccentric drive axis is offset along the perpendicular plane away from the axis on which the knife reciprocates. The offset of the eccentric drive axis allows the flexible drive portion to be kept straighter during the downstroke than in previous cutters. The increased straightening provides greater columnar strength and reduces deflection and stress of the drive portion during the time the knife is in compression. During the upstroke the knife is bent to a greater degree than in the previous cutters, but during this time the knife is in tension, the tension forces opposing rather than aiding the bending. The offset therefore provides for a longer service life for a blade of equal size or allows a reduction in size and mass of the knife to maintain an equivalent service life.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: November 14, 1989
    Assignee: Gerber Scientific, Inc.
    Inventor: Heinz J. Gerber
  • Patent number: 4302995
    Abstract: In continuously blanking a coiled metal sheet, an operator rapidly detects parts of welded connection of a metal sheet without any manual touch of the metal sheet, removes the parts of welded connection and restarts the apparatus for blanking the metal sheet.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: December 1, 1981
    Assignee: Daiwa Can Company, Limited
    Inventor: Toshio Iino
  • Patent number: 4235089
    Abstract: A continuous metal strip is fed lengthwise along a line of dies intermittently from one end of the line to the other beneath a vertically reciprocating ram carrying a plurality of punches that are slidable vertically in the ram from a projecting operating position to a retracted inoperative position. Each punch is selectively movable automatically from either of those positions to the other independently of the rest of the punches so that different punches can punch a strip at different times while the strip is passing through the press.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: November 25, 1980
    Inventor: John C. Vecchi
  • Patent number: 4218943
    Abstract: A revolving cross cutter has two knife drums coupled together, wherein the upper knife drum is mounted for movement towards and away from the lower drum for setting a gap between the two. A sensor-controlled lift mechanism is responsive to forcible lifting of the upper knife drum to lift same away from the lower drum when a jam-up occurs.
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: August 26, 1980
    Assignee: Jagenberg Werke Aktiengesellschaft
    Inventor: Dieter Osburg
  • Patent number: 4167131
    Abstract: Apparatus for producing all over pin hole perforations in the plies for multiwall bags except at the tops and bottoms in the area of interply pasting.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: September 11, 1979
    Assignee: Union Camp Corporation
    Inventors: Walter F. Habas, Laurence E. Elliott
  • Patent number: 4141266
    Abstract: Disclosed is a drum type flying shear wherein both or either of blades carried by upper and lower drums, respectively, is caused to describe a part of a non-circular locus whose major axis extends vertically when a blank or hot strip is almost sheared off.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: February 27, 1979
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Tsutomu Hara, Bunpei Masuda
  • Patent number: 4134334
    Abstract: In punching, cutting and forming presses and the like, electronic detecting means and/or sensors are provided so as to trip the press and prevent an operation when a mal-function occurs such as a tear in the strip material or a mis-alignment or a mis-feeding of the strip. When the press is equipped with an elbow arrangement to permit adjustments for feed line height while maintaining feed cycle synchronization, then the arrangement must incorporate the automated locking device of the invention, the same automatically unlocking the swing plate simultaneously with the tripping of the press.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: January 16, 1979
    Assignee: F. J. Littell Machine Company
    Inventor: Kenneth C. Johnson
  • Patent number: 4091700
    Abstract: A press-head comprising a plurality of punches and stripping members, wherein at least one of the punches may be directly connected to the head of the press for the machining operation, while the other punches and the stripping members abut via an elastic means on said head so that, on either side of the active punch in the process of machining, when the head is descending, at least one punch is used as stripping member selectively with a stripping member or a punch used as stripping member.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: May 30, 1978
    Inventor: Jean Cloup
  • Patent number: 4058041
    Abstract: The upper and lower shear drums of flying shears having respective shear blades are driven continuously by one motor at a tangential speed synchronized to the translational speed of a stock strip traveling therebetween, and the upper drum is moved between an upper non-shearing position and a lower position for cooperative shearing of the strip with the lower drum by an upper drum displacing mechanism driven by another motor controlled to undergo operational cycles each starting from full stop and ending at full stop during an integral number of revolutions of rotation of either of the drums.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: November 15, 1977
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Kunihiro Ito
  • Patent number: 4048891
    Abstract: A cutter having a reciprocating knife for cutting sheet material has a drive mechanism for converting the rotary motion of a drive member into the reciprocating motion of the knife. The drive mechanism is comprised of a mechanical linkage which causes the forces applied to the upper end of the knife to be directed substantially along the axis of reciprocation and to, therefore, have very small lateral components minimizing wear between the knife guiding surfaces. The drive mechanism basically includes an eccentric drive pin which through a connecting link oscillates a pivotal crossarm. The oscillating movement of the crossarm is in turn imparted to the knife by means of an intermediate link connected between the crossarm and knife.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: September 20, 1977
    Assignee: Gerber Garment Technology, Inc.
    Inventor: David R. Pearl
  • Patent number: 3975887
    Abstract: A packaging device for closing packages, especially food packages, and which is adapted for selective adjustment from a first condition for packaging cold food and a second condition for packaging hot food.
    Type: Grant
    Filed: November 13, 1974
    Date of Patent: August 24, 1976
    Assignee: Lincoln Manufacturing Company, Inc.
    Inventor: Joseph D. Clymer, deceased
  • Patent number: 3955458
    Abstract: A cutting apparatus for cutting pattern pieces from layups having a low stack height employs a cutting head having a small reciprocating blade suspended from a carriage which moves over the layup. The drive motors for reciprocating the blade and orienting the blade in a particular cutting direction about a .theta.-axis remain in a stationary position on the cutting head as the blade is oriented and elevated in and out of cutting contact with the layup. A blade sharpener is suspended from the head with the cutting blade and is energized by spinning the blade about the .theta.-axis. Drilling is also accomplished by spinning the blade.
    Type: Grant
    Filed: September 17, 1973
    Date of Patent: May 11, 1976
    Assignee: Gerber Garment Technology, Inc.
    Inventor: David Raymond Pearl