GB902487A - Improvements in or relating to push-button control devices for gearboxes - Google Patents

Improvements in or relating to push-button control devices for gearboxes

Info

Publication number
GB902487A
GB902487A GB2708459A GB2708459A GB902487A GB 902487 A GB902487 A GB 902487A GB 2708459 A GB2708459 A GB 2708459A GB 2708459 A GB2708459 A GB 2708459A GB 902487 A GB902487 A GB 902487A
Authority
GB
United Kingdom
Prior art keywords
buttons
button
depressed
plunger
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
GB2708459A
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of GB902487A publication Critical patent/GB902487A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • G05G5/08—Interlocking of members, e.g. locking member in a particular position before or during the movement of another member
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H59/12—Range selector apparatus comprising push button devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

902,487. Change-speed control. REGIE NATIONALE DES USINES RENAULT. Aug. 7, 1959 [Aug. 27, 1958], No. 27084/59. Class 80 (2). A vehicle change-speed gear is controlled by a set of electric press-buttons M, VR (normal forward drive), E (low speed), N (neutral), R (reverse) and P (parking), each, with the exception of N, having a contact-establishing rod 12 engageable in a vertical column of balls 14, 15 loaded by springs 17, 17<SP>1</SP> and being held when depressed by the engagement of a cam notch 9 with one of a series of lugs projecting from a vertical locking-bar 1 loaded by a spring. The N button is designed to permit operation of only certain of the remaining buttons at any one time, and for this purpose is provided with a plunger 10 formed with longitudinally-spaced upper and lower recesses 11, 11<SP>1</SP>. With button N in its normal position, Fig. 5, the upper surface of plunger 10 locks the balls 14 against spring 17<SP>1</SP>, thus preventing operation of any of the buttons E, R, P, but recess 11<SP>1</SP> permits operation of either of buttons M, VR. When button N is depressed, however, the balls 15 are locked by the lower surface of plunger 10, and recess 11 permits operation of any one, but not more, of buttons E, R, P. The lift of the cam notches for buttons M, VR is greater than that of the notches for buttons E, R, P (Fig. 5) so that any one of the latter buttons, if depressed, may be released from locking-bar 1 by the operation of either of buttons M, VR, independently of button N, but operation of any of buttons E, R, P will not displace the bar 1 sufficiently to release any of buttons M, VR, N, if depressed.
GB2708459A 1958-08-27 1959-08-07 Improvements in or relating to push-button control devices for gearboxes Expired GB902487A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR773259 1958-08-27

Publications (1)

Publication Number Publication Date
GB902487A true GB902487A (en) 1962-08-01

Family

ID=8707336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2708459A Expired GB902487A (en) 1958-08-27 1959-08-07 Improvements in or relating to push-button control devices for gearboxes

Country Status (1)

Country Link
GB (1) GB902487A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209389B (en) * 1962-09-18 1966-01-20 Linde Ag Device for the mutual locking of the longitudinal displacement of two push rods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209389B (en) * 1962-09-18 1966-01-20 Linde Ag Device for the mutual locking of the longitudinal displacement of two push rods

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