FR2603966A1 - Variable-ratio rotation demultiplying mechanism including enveloping worm and toothed element - Google Patents

Variable-ratio rotation demultiplying mechanism including enveloping worm and toothed element

Info

Publication number
FR2603966A1
FR2603966A1 FR8612928A FR8612928A FR2603966A1 FR 2603966 A1 FR2603966 A1 FR 2603966A1 FR 8612928 A FR8612928 A FR 8612928A FR 8612928 A FR8612928 A FR 8612928A FR 2603966 A1 FR2603966 A1 FR 2603966A1
Authority
FR
France
Prior art keywords
variable
toothed element
mechanism including
enveloping worm
worm
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.)
Granted
Application number
FR8612928A
Other languages
French (fr)
Other versions
FR2603966B1 (en
Inventor
Robert Bayle
Pierre Bonnelle
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 France SAS
Original Assignee
TRW France SAS
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 France SAS filed Critical TRW France SAS
Priority to FR8612928A priority Critical patent/FR2603966B1/en
Publication of FR2603966A1 publication Critical patent/FR2603966A1/en
Application granted granted Critical
Publication of FR2603966B1 publication Critical patent/FR2603966B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/04—Steering gears mechanical of worm type
    • B62D3/10—Steering gears mechanical of worm type with worm engaging in sector or roller gear
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F16H1/166—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with members rotating around axes on the worm or worm-wheel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

A rotation demultiplying mechanism including an input shaft carrying an enveloping worm 1B and a transverse output shaft carrying the toothed element interacting with the said worm. In order to obtain both a toothed element having at least one set of two teeth engaged on each side of the thread tooth and a variable demultiplication ratio between the simultaneous rotations of the input shaft and of the output shaft, this enveloping worm has a thread in which the groove 5B has a variable-width outline and the tooth 6B has a constant outline. The invention is particularly used in vehicle steering.
FR8612928A 1986-09-16 1986-09-16 VARIABLE RATIO ROTATION DEMULTIPLIER MECHANISM COMPRISING A GLOBAL SCREW AND A TOOTHED ELEMENT Expired - Fee Related FR2603966B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8612928A FR2603966B1 (en) 1986-09-16 1986-09-16 VARIABLE RATIO ROTATION DEMULTIPLIER MECHANISM COMPRISING A GLOBAL SCREW AND A TOOTHED ELEMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8612928A FR2603966B1 (en) 1986-09-16 1986-09-16 VARIABLE RATIO ROTATION DEMULTIPLIER MECHANISM COMPRISING A GLOBAL SCREW AND A TOOTHED ELEMENT

Publications (2)

Publication Number Publication Date
FR2603966A1 true FR2603966A1 (en) 1988-03-18
FR2603966B1 FR2603966B1 (en) 1990-12-21

Family

ID=9338984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8612928A Expired - Fee Related FR2603966B1 (en) 1986-09-16 1986-09-16 VARIABLE RATIO ROTATION DEMULTIPLIER MECHANISM COMPRISING A GLOBAL SCREW AND A TOOTHED ELEMENT

Country Status (1)

Country Link
FR (1) FR2603966B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032578B4 (en) * 1999-07-13 2005-02-17 Valeo Electrical Systems, Inc., Auburn Hills Gear worm and method for producing a worm gear
DE102006059184A1 (en) * 2006-12-15 2008-06-26 Bühler Motor GmbH Worm gear, for a geared motor, has a worm screw with an unequal pitch along its length and a worm wheel with a smaller pitch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH109813A (en) * 1924-03-31 1925-04-16 E Ross David Steering mechanism for vehicles.
FR1213085A (en) * 1958-10-24 1960-03-29 Variable gear ratio power steering system
FR1289670A (en) * 1960-03-12 1962-04-06 Zahnradfabrik Friedrichshafen Steering mechanism, in particular for motor vehicles
GB899173A (en) * 1958-09-23 1962-06-20 Bishop Arthur E Improvements in or relating to variable ratio steering mechanisms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH109813A (en) * 1924-03-31 1925-04-16 E Ross David Steering mechanism for vehicles.
GB899173A (en) * 1958-09-23 1962-06-20 Bishop Arthur E Improvements in or relating to variable ratio steering mechanisms
FR1213085A (en) * 1958-10-24 1960-03-29 Variable gear ratio power steering system
FR1289670A (en) * 1960-03-12 1962-04-06 Zahnradfabrik Friedrichshafen Steering mechanism, in particular for motor vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032578B4 (en) * 1999-07-13 2005-02-17 Valeo Electrical Systems, Inc., Auburn Hills Gear worm and method for producing a worm gear
DE102006059184A1 (en) * 2006-12-15 2008-06-26 Bühler Motor GmbH Worm gear, for a geared motor, has a worm screw with an unequal pitch along its length and a worm wheel with a smaller pitch
DE102006059184B4 (en) * 2006-12-15 2012-06-14 Bühler Motor GmbH worm gear

Also Published As

Publication number Publication date
FR2603966B1 (en) 1990-12-21

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Legal Events

Date Code Title Description
CL Concession to grant licences
TP Transmission of property
TP Transmission of property
ST Notification of lapse