Abstract: The removal starting position (8S1) of a first removal process and the four removal starting positions (8S21-8S24) in a second removal process are established on an imaginary circle (7I) with a prescribed radius (R) that is inscribed in the apex (7C) of an incomplete thread part (7a). In each removal process, the tip of the screw thread cutting tool shaves off the apex (7C) of the incomplete thread part (7a) into respective recesses, contacting the imaginary inscribed circle (7I) from the outside (above). The multiple cutting surfaces of the apex (7C) are formed in parallel helices (that is, as mutually adjacent helical recesses) from the starting position to the ending position of the incomplete thread part. Points and burrs in the incomplete thread part can thereby be eliminated or reduced without loss of the ability to screw together with a partner threaded fastener (threaded portion).
Abstract: A system and method provides data for a laser projection process used in manufacturing involving fasteners. For example, the laser projection process may include projecting a laser image associated with fasteners used to assemble objects. Fastener attribute data may be extracted from an engineer's design data and processed to generate a laser projection output file. This output file may include geometric data used to project a laser image associated with the fasteners. For example, this image may be an outline indicating the location, shape, and orientation of a fastener. The output file may also include non-geometric data associated with attributes of the objects to be assembled. Both the geometric and the non-geometric data can then be displayed in a user interface, such as a display screen of a laser projector control device, in addition to the display of the laser image in three-dimensional space.
Abstract: A press-fit component is proposed, which can be both press-fitted into an existing hole in a sheet metal component and also punched into sheet metal where there is no hole. The press-fit component exhibits a head with a bearing surface and a shaft which emanates from the bearing surface. The shaft has a trilobular cross-section and may be provided with knurling over at least part of its length. The shaft may be provided with a threaded through-hole. As a result of the trilobular form, the shaft and with it the press-fit element is secured against turning, without deformation of the sheet metal from a plane taking place during press-fitting.
Abstract: A fastening device for fastening a tube to a bearing structure, particularly a horizontal mesh frame tube of a mesh cage attached to a transport pallet used to hold a liquid container. To form the fastening device the tube has a fastening section with a zone flattened by compression and provided with a fastening hole to accommodate a fastening bolt connecting the fastening section to the bearing structure. The fastening hole has a perimeter shaped such that the perimeter defines a force application plane between a bolt head and the fastening section that is inclined at an angle ? relative to a fastening plane in which the fastening section is connected to the bearing structure. The perimeter has a hole embrasure formed by an annular collar extending in the direction of a fastening axis, and which defines a bearing surface for the bolt head disposed in the force application plane.
Abstract: A fastening device for coupling a first work-piece to a second work-piece. The fastening device includes a fastener body having a peripheral surface configured to be received in the first work-piece. The fastening device also includes a spring assembly coupled to the fastener body. The spring assembly includes a flange member, and a plurality of tunable springs extending radially outward from the flange member, the tunable springs are each configured to deform when a predetermined pressure is applied to the flange member, the predetermined pressure is sufficient to couple the first work-piece to the second work-piece.
February 20, 2008
September 18, 2008
JASON HOLT, ALBERT W. VAN BOVEN, GLENN G. HEAVENS
Abstract: A rack and pinion steering gear (10) comprises a rack (14) and a housing (12) for receiving the rack. The housing (12) has a chamber (42) for receiving a rack supporting yoke (70). The chamber (42) has a threaded portion (44) with internal threads (45). A rack supporting yoke (70) is disposed in the chamber (42) and supports the rack (14) for movement in the housing (12). An externally threaded yoke plug (90) is screwed into the internal threads (45) of the threaded portion (44). An externally threaded lock nut (120) is screwed into the internal threads (45) of the threaded portion (44) and into abutting engagement with the yoke plug (90) to lock the yoke plug in the housing (12).
December 6, 1999
Date of Patent:
September 11, 2001
Steven P. Spagnuolo, Kenneth N. Douglass
Abstract: A pair of edging rolls for edging the flange edges of symmetrical steel sections, particularly I-girders. Each edging roll has a barrel engaging in the inner contour of the steel section and guiding the section, and two edging paths adjoining the barrel on either side and extending outwardly in a conical shape for the flange edges of the section. The edging paths are arranged at the outer circumference of bushings which are guided so as to be displaceable coaxially at both sides of the barrel on the roll body. The bushings have end faces which face one another and engage in annular recesses of the barrel.