By Relatively Movable Tools Having Slidably-engaged Work-confining Wall Means (e.g., Edgewise Sheet-metal Bender) Patents (Class 72/411)
  • Patent number: 8505941
    Abstract: A method enhances fatigue strength of ear portions which are high fatigue risk parts in a torsion beam almost without bringing about disadvantages in terms of productivity and cost. A torsion beam is formed with a portion of the tubular body into an approximately U-shape in cross section by crushing the portion of the tubular body in the radial direction and, thereafter, due to bending with a bottom line set as a belly side of bending, a bending strain of 2 to 6% in the tube longitudinal direction on a tensile side is imparted to the ear portions.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 13, 2013
    Assignee: JFE Steel Corporation
    Inventors: Yuji Hashimoto, Shunsuke Toyoda, Kinya Nakagawa, Koji Suzuki, Yoshikazu Kawabata, Osamu Sonobe, Akio Sato
  • Publication number: 20110174048
    Abstract: A flaring body has first and second opposing ends. A perimeter surface intersects the first end, and a flaring surface is located between the perimeter surface and the second end. The perimeter surface has a first cross-sectional profile with a first area, and the flaring surface having a second cross-sectional profile with a second area less than the first area. The perimeter surface and the flaring surface are joined by an inside, rounded corner. A crimping body has a top surface and an opposing bottom surface, and an interior surface that forms defines a passageway that connects said top and bottom surfaces. The interior surface has a third cross-sectional profile with a third area larger than the first area. The flaring body is slidably captureable in the passageway. The interior surface further has a crimping channel that extends along at least a portion thereof and terminates at the bottom surface.
    Type: Application
    Filed: July 12, 2010
    Publication date: July 21, 2011
    Applicant: Lennox Industries Inc.
    Inventors: Donald N. Zimmer, Randy D. Smith, Roger W. Vreeland
  • Patent number: 7409847
    Abstract: A ferrule securing assembly including a die set assembly for reducing a cylindrical ferrule. The die set assembly having a female die and a male die. The female die having a female die opening sequentially defined by a tapered section, a parallel section, and a concave seat. The male die having a concave die face with at least two lateral edges, a medial area, and a radius of curvature. The male die is receivable in the female die opening to move the ferrule through the tapered section so as to forge the ferrule into a substantially oval shape, to move the oval shaped ferrule through the parallel section, and to compress the oval shaped ferrule between the concave die face and the concave seat to forge the oval shaped ferrule into a substantially cylindrical shape.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 12, 2008
    Assignee: Intelligent Design Group, Inc.
    Inventors: William A. Wightman, James C. Clingerman
  • Patent number: 6619098
    Abstract: A bending head for bending of metallic hollow profile strips (2) in the production of spacer frames for insulating glass panes has a bending abutment (5) and a bending cheek (7). The bending abutment (5) can be placed by swivelling against one side of the section of the hollow profile strip (2) to be bent, conversely the bending cheek (7) can be placed from the outside against the hollow profile strip (2). In the execution of the bending process the bending abutment (5) and the bending cheek (7) are moved at the same time and hold the section of the hollow profile strip (2) to be bent between themselves.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: September 16, 2003
    Inventor: Peter Lisec
  • Patent number: 6260402
    Abstract: One or more closed perimeter openings are formed in the compression area of a flange of a member that is to be bent transversely to the flange. The member is bent along a transverse bend line, and the flanges are bent inwardly on themselves. The bending of the member along the transverse bend line is done with a great force, and because portions of the side flanges are supported on their distal and proximal side, the material of the side flanges in the compression area plasticizes and flows into the closed perimeter opening, causing them to deform. Because the closed perimeter opening or openings are present, the side flanges are compressed in a more controlled manner, reducing cracking, wrinkling and thinning during the bending of the member along the transverse bend line.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: July 17, 2001
    Assignee: Simpson Strong-Tie Company, Inc.
    Inventor: William F. Leek
  • Patent number: 6250129
    Abstract: A coining die apparatus for reshaping the backing plates of spent rotary drum brake cores in the production of remanufactured brake shoes comprises a lower die having a concave working surface configured to support a convex outer surface of a brake core backing plate to be coined. A moveable upper die includes axially-spaced outer die portions and a middle die portion between the outer portions having convex working surfaces. The middle and outer die portions are spaced laterally to accommodate a pair of mounting brackets extending from a convex inner surface of the backing plate. The middle die portion enters between the brackets when the dies are closed to strike and reshape a corresponding middle region of the backing plate between the brackets, while the outer die portions strike and reshape corresponding side portions of the mounting plate adjacent either side of the mounting brackets.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Federal-Mogul World Wide, Inc.
    Inventor: Lawrence E. Bostic
  • Patent number: 6178799
    Abstract: A forming press for L-shaped and T-shaped workpieces includes first and second press members relatively movable toward and away from each other along a first direction, a first forming die carried by the first press member for engaging and deforming the workpiece to a desired shape when the press members are moved toward each other with the workpiece held therebetween, and a clamping assembly mounted on the second press member for clamping the leg of the workpiece to stabilize the workpiece during shaping thereof. The clamping assembly comprises at least one cam member fixed with respect to the second press member. The cam member defines a pair of spaced-apart cam surfaces oppositely inclined so as to form a channel that widens in the first direction toward the first press member. The clamping assembly further includes a pair of clamping members disposed within the channel so as to be movable along the first direction.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: January 30, 2001
    Assignee: The Boeing Company
    Inventors: Richard H. Miller, Charles E. Buehler, Donald E. Pollard
  • Patent number: 5547424
    Abstract: In a method of making an elongate object (49) with a head at one end and a point at the other end, a blank (49) is placed in a die (50) having a through-going channel, following which the head end is subjected to axial pressure by a tool (52), while a stop member (55) is kept engaged with the die (50) at its other end. A pre-formed head is initially provided on the blank (49) so that the head has an excess of material with respect to the size of the final head. A cavity (56) is formed in the stop member and is in extension of the through channel. When blank (49) is subjected to axial pressure the tool (52) causes flow of material in the shank of the blank (49) so that blank material flows into the cavity (56) of the stop member.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: August 20, 1996
    Assignee: Enkotec A/S
    Inventor: Ove Nielsen
  • Patent number: 5046245
    Abstract: A mixer impeller made up of paddle shaped blades, which near their tips (e.g., at 90% of the radius of the impeller from its axis of rotation) are of a width at least 40% of the impeller's diameter. The blades also having camber and twist. They are formed by establishing bending moments which form the blades into sections which are curved and flat, with the flat sections being at least in the center area of the base of the blades.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: September 10, 1991
    Assignee: General Signal Corporation
    Inventors: Ronald J. Weetman, Richard A. Howk
  • Patent number: 4570474
    Abstract: A flat metal strip is placed horizontally on a base plate which is vertically movable between a ram and a bolster of a press. A bending die for bending the metal strip by applying pressure in the widthwise direction is fixed to a slide cam slidable horizontally on the base plate. The slide cam has a slide cam face abutting on a front cam face formed in a drive cam mounted on the bolster. When the ram is moved downwards, a cover plate fixed to the ram covers the metal strip, pushes the base plate and the slide cam downwards, and compels the slide cam to slide horizontally toward the metal strip with the aid of the front and slide cam faces to bend the metal strip with the bending die. On the other hand, the drive cam has a rear cam face abutting on a press cam face formed in a press cam fixed to the ram.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: February 18, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Tanaka, Sotozi Mitani, Yasushi Sakurai
  • Patent number: 4481984
    Abstract: An electronic component lead straightening device and method for conditioning, or reconditioning, electronic devices having an elongated body portion of possible different sizes and materials, and a plurality of metal leads extending from opposite edges of the body portion. The leads, for appropriate use of the electronic component in a circuit, such as a printed circuit on a mounting board, requires their disposition at a preferred predetermined angle to the body, and in substantial parallel mutual relationship, one to another.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: November 13, 1984
    Assignee: American Tech Manufacturing Inc.
    Inventor: Frank V. Linker
  • Patent number: 4430880
    Abstract: An apparatus for straightening suspension bars removed from cathode plates includes a horizontal press, a vertical press, a vertically movable stop plate, and an ejector in the horizontal press. The horizontal press pushes the suspension bar against the stop plate when the stop plate is in its upper position, and ejects the straightened suspension bar laterally when the stop late is in its lower position.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: February 14, 1984
    Assignee: Outokumpu Oy
    Inventors: Jarkko Nurmi, Leo Uusitalo
  • Patent number: 4403495
    Abstract: An apparatus for bending an elongate member with a pair of spaced parallel planar flanges which normally extend from the planar web to form a channel section. The apparatus includes a platen shaped for close fitting engagement with the exterior web and flange faces of the elongate member in a region where the elongate member is bent. The platen also includes a counter-pressure member, one surface of which engages the exterior face of the web of the elongate member in the bending region. The counter-pressure member is capable of being selectively advanced or retracted within the platen. A movable head member shaped for close fitting engagement with the interior web and flange faces of the elongate member in the bending region has projections which apply a force in the bending region acting in the planes of the flanges on longitudinally spaced portions of the elongate member for relative displacement of the portions.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: September 13, 1983
    Assignee: Rockwell International Corporation
    Inventor: Terence R. Talbot
  • Patent number: 4241600
    Abstract: A brake shoe assembly and an apparatus and method for making same wherein the brake shoe includes a pair of spaced parallel arcuate ribs having outside radii secured to the underside of an arcuate plate with the inside radii of the arcuate ribs having a greater thickness than the outside radii. In accordance with the apparatus and method for making the brake shoe assembly, a straight length of rectangular bar stock having opposite faces is bent into an arcuate shaped member while maintaining the bar stock substantially flat with the opposite faces extending transversely to the axis of bending at a bending station. Subsequently, a plurality of holes are pierced between the opposite faces of the arcuate member at a piercing station.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: December 30, 1980
    Assignee: Leonard Friedman
    Inventor: William L. Pringle
  • Patent number: 4012936
    Abstract: A method and apparatus for bending tubular bodies, wherein elemental tubular sections are gradually shifted with respect to each other, without rotation, in a V-shaped bend from a central bend section. The apparatus includes two slidingly fitted supports for housing the tubular body to be bent, and a central triangular presser acting between the supports on the central tube section. The supports are gradually moved by the presser in opposite directions to define the tube sections that are actually shifted.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: March 22, 1977
    Assignee: Tag Vertrieb A.G.
    Inventor: Enrico Sebastiani
  • Patent number: 3948074
    Abstract: A sheet metal bending brake apparatus adapted to make complex bends in a sheet metal workpiece, comprising a frame, a fixed holding bar mounted adjacent of said surface, a movable holding bar mounted on said frame movable between a forward clamping position in opposed clamping relationship with the fixed bar and a rearward and downward position below the plane of the fixed surface, a bending brake element adjacent the fixed jaw adapted to contact sheet metal held between the same, said bending element adapted to rotate 180.degree., or more, around a point adjacent the jaws, the movable holding bar being coordinated with the bending brake to release from the holding position before the bending brake has rotated 180.degree..
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: April 6, 1976
    Assignee: Lion Services, Inc.
    Inventor: Leo Henry Stalzer