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GB2400429B - Ball screw mechanism and electrically powered steering device utilizing the same - Google Patents

Ball screw mechanism and electrically powered steering device utilizing the same

Info

Publication number
GB2400429B
GB2400429B GB0413075A GB0413075A GB2400429B GB 2400429 B GB2400429 B GB 2400429B GB 0413075 A GB0413075 A GB 0413075A GB 0413075 A GB0413075 A GB 0413075A GB 2400429 B GB2400429 B GB 2400429B
Authority
GB
United Kingdom
Prior art keywords
same
ball screw
steering device
screw mechanism
electrically powered
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 - Fee Related
Application number
GB0413075A
Other versions
GB0413075D0 (en
GB2400429A (en
Inventor
Morihisa Yoshioka
Koji Tateishi
Isamu Yoshida
Yoshinori Ikeda
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co 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
Priority claimed from JP2000100356A external-priority patent/JP3844943B2/en
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of GB0413075D0 publication Critical patent/GB0413075D0/en
Publication of GB2400429A publication Critical patent/GB2400429A/en
Application granted granted Critical
Publication of GB2400429B publication Critical patent/GB2400429B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0442—Conversion of rotational into longitudinal movement
    • B62D5/0445—Screw drives
    • B62D5/0448—Ball nuts
    • 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
    • F16H2025/2242—Thread profile of the screw or nut showing a pointed "gothic" arch in cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)
GB0413075A 2000-04-03 2001-03-28 Ball screw mechanism and electrically powered steering device utilizing the same Expired - Fee Related GB2400429B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000100356A JP3844943B2 (en) 2000-04-03 2000-04-03 Ball screw and electric power steering apparatus including the same
GB0107739A GB2361045B (en) 2000-04-03 2001-03-28 Ball screw mechanism and electrically powered steering device utilizing the same

Publications (3)

Publication Number Publication Date
GB0413075D0 GB0413075D0 (en) 2004-07-14
GB2400429A GB2400429A (en) 2004-10-13
GB2400429B true GB2400429B (en) 2005-01-19

Family

ID=32992567

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0413074A Expired - Fee Related GB2400156B (en) 2000-04-03 2001-03-28 Ball screw mechanism and electrically powered steering device utilizing the same
GB0413075A Expired - Fee Related GB2400429B (en) 2000-04-03 2001-03-28 Ball screw mechanism and electrically powered steering device utilizing the same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0413074A Expired - Fee Related GB2400156B (en) 2000-04-03 2001-03-28 Ball screw mechanism and electrically powered steering device utilizing the same

Country Status (1)

Country Link
GB (2) GB2400156B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005244A1 (en) * 2011-03-08 2012-09-13 Schaeffler Technologies Gmbh & Co. Kg Ball Screw
DE102015214856B4 (en) * 2015-08-04 2017-07-06 Schaeffler Technologies AG & Co. KG Ball Screw

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711188A (en) * 1993-12-27 1998-01-27 Nsk, Ltd. Internal-circulation-type ball screw device
US6112610A (en) * 1997-08-05 2000-09-05 Thomson Saginaw Ball Screw Company, Llc Externally insertable self-retaining crossover for ball nut and screw assemblies

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887480A (en) * 1987-12-14 1989-12-19 American Ball Screw Externally serviceable ball screw having internal return means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711188A (en) * 1993-12-27 1998-01-27 Nsk, Ltd. Internal-circulation-type ball screw device
US6112610A (en) * 1997-08-05 2000-09-05 Thomson Saginaw Ball Screw Company, Llc Externally insertable self-retaining crossover for ball nut and screw assemblies

Also Published As

Publication number Publication date
GB2400156A (en) 2004-10-06
GB0413075D0 (en) 2004-07-14
GB2400429A (en) 2004-10-13
GB2400156B (en) 2005-01-19
GB0413074D0 (en) 2004-07-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20200328