Die-press Shaping Patents (Class 29/898.045)
  • Patent number: 8122577
    Abstract: A ball joint 10 includes a first member 12 having a ball section 14 and a second member 15 having a socket 16. Ball section 14 is accommodated and supported inside socket 16. A pair of dies 20, 30 sandwich a wall 18 surrounding an opening 17 of the socket 16, and are configured to approach each other gradually, utilizing small repetitive vibrations that include an approaching and separating action, thereby intermittently pressing the wall in an inward radial direction. During each interval of the intermittent pressing action, a supporting and rotating device 40 rotates socket 16 (second member 15) in small increments about a central axis C2 of socket 16. Consequently, dies 20 and 30 successively press against a multitude of points on the circumference of the outer surface of wall 18 of the socket, thereby bending wall 18 inward so as to reduce the diameter thereof.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: February 28, 2012
    Assignee: Ogino Industrial Co., Ltd
    Inventor: Akira Ogino
  • Patent number: 8028414
    Abstract: Bearing bores for engine mount components must be periodically repaired. A component is disassembled and a bearing is removed from the bearing bore. An inner surface of the bearing bore is machined to remove any damage. A sizing sleeve is selected to have a press fit with the machined inner surface of the bearing bore and with the outer surface of a new bearing. The bearing is press fit into the sizing sleeve and the sizing sleeve is press fit into the bearing bore. The outer surfaces of the sizing sleeve and the bearing are swaged to assist in retaining and preventing relative movement between the bearing, sizing sleeve and engine mount component.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: October 4, 2011
    Assignee: United Technologies Corporation
    Inventor: Andrew R. Gratton
  • Patent number: 7810239
    Abstract: Bearing bores for engine mount components must be periodically repaired. A component is disassembled and a bearing is removed from the bearing bore. An inner surface of the bearing bore is machined to remove any damage. A sizing sleeve is selected to have a press fit with the machined inner surface of the bearing bore and with the outer surface of a new bearing. The bearing is press fit into the sizing sleeve and the sizing sleeve is press fit into the bearing bore. The outer surfaces of the sizing sleeve and the bearing are swaged to assist in retaining and preventing relative movement between the bearing, sizing sleeve and engine mount component.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: October 12, 2010
    Assignee: United Technologies Corporation
    Inventor: Andrew R. Gratton
  • Patent number: 7407328
    Abstract: A bearing housing to receive and be deformed around a ball having a predetermined radius R to form a bearing, an inner surface of the bearing housing being generally cup-shaped, having at least approximately circular symmetry around a central axis, and comprising: a cup portion of the radius R shaped to seat closely a first portion of a ball of radius R placed in the bearing housing; and a conforming portion lying in the plane which is perpendicular to the central axis and contains the centre of curvature of the cup portion, there being a clearance between the conforming portion and a second portion of the ball, the clearance being greater than any clearance between the cup portion and the first portion of the ball, the bearing housing being shaped such that, when the bearing housing is deformed around a ball having radius R to form a bearing, the bearing housing is deformed so that the conforming portion matches closely the shape of the second portion of the ball.
    Type: Grant
    Filed: October 13, 2003
    Date of Patent: August 5, 2008
    Assignee: Minebea Co. Ltd
    Inventor: Steven A. Essam
  • Patent number: 7251891
    Abstract: A production method for sintered bearing member comprises: compacting a metal powder into a green compact, sintering the green compact into a sintered compact; impregnating a resin solvent into the sintered compact, and removing the resin solvent adhering to a surface of the sintered compact, thereby exposing a matrix as sintered on a surface of the sintered compact. Pores existing in portions other than the surface are sealed with the resin.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: August 7, 2007
    Assignees: Hitachi Powdered Metals Co., Ltd., Minebea Co., Ltd.
    Inventors: Katsutoshi Nii, Shunichi Togashi, Tadashi Akahori
  • Publication number: 20060185171
    Abstract: A method of swaging a spherical bearing comprising a ball and a bearing housing, the method comprising: providing a ball and a bearing housing to be swaged around the ball; creating a temperature differential between the temperature of the housing and the temperature of the ball, the ball being at a lower temperature than the housing such that the relative size of the ball with respect to the housing decreases; inserting the ball in the housings; swaging the housing around the ball, the ball being cooler than the housing during the swaging process; allowing the ball and housing to return to ambient temperature such that the relative size of the ball with respect to the housing increases.
    Type: Application
    Filed: March 25, 2004
    Publication date: August 24, 2006
    Inventor: Paul Smith