GB897008A - A new or improved method of producing screw and nut mechanism and mechanism producedby that method - Google Patents

A new or improved method of producing screw and nut mechanism and mechanism producedby that method

Info

Publication number
GB897008A
GB897008A GB3691257A GB3691257A GB897008A GB 897008 A GB897008 A GB 897008A GB 3691257 A GB3691257 A GB 3691257A GB 3691257 A GB3691257 A GB 3691257A GB 897008 A GB897008 A GB 897008A
Authority
GB
United Kingdom
Prior art keywords
screw
nut
piece
thread
balls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3691257A
Inventor
Alan Herbert Edward Bradfield
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRW Steering Systems Ltd
Original Assignee
TRW Steering Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRW Steering Systems Ltd filed Critical TRW Steering Systems Ltd
Priority to GB3691257A priority Critical patent/GB897008A/en
Publication of GB897008A publication Critical patent/GB897008A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
    • F16H25/2223—Cross over deflectors between adjacent thread turns, e.g. S-form deflectors connecting neighbouring threads

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

897,008. Screw-and-nut gearing. CAM GEARS Ltd. Sept. 23, 1958 [Nov. 26, 1957], No. 36912/57. Class 80 (3). In a screw-and-nut mechanism, particularly for a steering gear wherein balls circulate between the threads of the screw-and-nut, the ball return path 4 is formed in an inset piece 5 of metal or plastic which is moulded in situ in an opening or recess in the nut, the piece 5 having its ends shaped to penetrate into the screw thread to deflect the balls into the return path. The piece 5 may be simply bonded in the recess by the moulding operation or may, as shown, have an inner flange and a tapered wall to lock it in position. Alternatively the wall may have a projection formed thereon. The piece 5 is moulded against a die (not shown) located in the thread of the screw. As shown, the path 4 comprises an open channel interconnecting the two ends of a single helix turn of the nut so that the balls are rolled over the crest of the screw-thread.
GB3691257A 1957-11-26 1957-11-26 A new or improved method of producing screw and nut mechanism and mechanism producedby that method Expired GB897008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3691257A GB897008A (en) 1957-11-26 1957-11-26 A new or improved method of producing screw and nut mechanism and mechanism producedby that method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3691257A GB897008A (en) 1957-11-26 1957-11-26 A new or improved method of producing screw and nut mechanism and mechanism producedby that method

Publications (1)

Publication Number Publication Date
GB897008A true GB897008A (en) 1962-05-23

Family

ID=10392175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3691257A Expired GB897008A (en) 1957-11-26 1957-11-26 A new or improved method of producing screw and nut mechanism and mechanism producedby that method

Country Status (1)

Country Link
GB (1) GB897008A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306124A (en) * 1963-02-18 1967-02-28 Cam Gears Ltd Screw and nut devices
US3924486A (en) * 1973-10-29 1975-12-09 Tech Integrale Screw and nut transmission mechanism
FR2579515A1 (en) * 1985-04-01 1986-10-03 Novatome METHOD FOR MANUFACTURING A DEVIATOR FOR AN INTERNAL RECYCLING BALL SCREW NUT SYSTEM
US4905534A (en) * 1987-04-29 1990-03-06 Waybol, S.A. Lead screw with balls recirculating by deflector with half-spherical supports
DE3917578A1 (en) * 1989-05-30 1990-12-06 Neff Gmbh METHOD FOR PRODUCING A BALL BULK DEVICE ON THE NUT OF A BALL SCREW AND BALL SCREW
WO2004020124A1 (en) * 2002-08-08 2004-03-11 Ina-Schaeffler Kg Method for the production of a spindle nut of a spherical thread drive mechanism
EP1584542A1 (en) * 2004-04-07 2005-10-12 Ntn Corporation Ball screw assembly for automobiles
EP2023012A1 (en) * 2006-04-28 2009-02-11 THK Co., Ltd. Screw device and method of producing same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306124A (en) * 1963-02-18 1967-02-28 Cam Gears Ltd Screw and nut devices
US3924486A (en) * 1973-10-29 1975-12-09 Tech Integrale Screw and nut transmission mechanism
FR2579515A1 (en) * 1985-04-01 1986-10-03 Novatome METHOD FOR MANUFACTURING A DEVIATOR FOR AN INTERNAL RECYCLING BALL SCREW NUT SYSTEM
EP0198750A1 (en) * 1985-04-01 1986-10-22 Novatome Method of manufacturing a deviating element for a screw-and-nut assembly with internal ball recirculation
US4905534A (en) * 1987-04-29 1990-03-06 Waybol, S.A. Lead screw with balls recirculating by deflector with half-spherical supports
DE3917578A1 (en) * 1989-05-30 1990-12-06 Neff Gmbh METHOD FOR PRODUCING A BALL BULK DEVICE ON THE NUT OF A BALL SCREW AND BALL SCREW
WO2004020124A1 (en) * 2002-08-08 2004-03-11 Ina-Schaeffler Kg Method for the production of a spindle nut of a spherical thread drive mechanism
US7107805B2 (en) 2002-08-08 2006-09-19 Ina-Schaeffler Kg Method for the production of a spindle nut of a spherical thread drive mechanism
EP1584542A1 (en) * 2004-04-07 2005-10-12 Ntn Corporation Ball screw assembly for automobiles
EP2023012A1 (en) * 2006-04-28 2009-02-11 THK Co., Ltd. Screw device and method of producing same
EP2023012A4 (en) * 2006-04-28 2009-12-30 Thk Co Ltd Screw device and method of producing same
US8132479B2 (en) 2006-04-28 2012-03-13 Thk Co., Ltd. Screw device and method of manufacturing the same

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