EP0379550A1 - A gear selector assembly - Google Patents

A gear selector assembly

Info

Publication number
EP0379550A1
EP0379550A1 EP89907623A EP89907623A EP0379550A1 EP 0379550 A1 EP0379550 A1 EP 0379550A1 EP 89907623 A EP89907623 A EP 89907623A EP 89907623 A EP89907623 A EP 89907623A EP 0379550 A1 EP0379550 A1 EP 0379550A1
Authority
EP
European Patent Office
Prior art keywords
gear selector
control shaft
positioning means
gear
shaft
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.)
Withdrawn
Application number
EP89907623A
Other languages
German (de)
French (fr)
Other versions
EP0379550A4 (en
Inventor
Mario Mariani
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0379550A1 publication Critical patent/EP0379550A1/en
Publication of EP0379550A4 publication Critical patent/EP0379550A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
    • B60R25/06—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor operating on the vehicle transmission

Definitions

  • the present invention relates to gear selector
  • the invention has particular application as a vehicle anti-theft mechanism.
  • a gear selector assembly of an automatic transmission comprising, a guide shaft connected to a gear stick,
  • gear selector control shaft connected to the said guide shaft and adapted to engage the said gear selector positioning means
  • FIG. 1 is a partly broken away perspective view of a
  • Fig 2 is a perspective view of the gear selector
  • the gear selector assembly 10 includes an electronically operable solenoid 11 that has an operating shaft 12 connected to a drive arm 13.
  • a spring 14 connects between the solenoid 11 and the drive arm 13.
  • the drive arm 13 has a forked projection 15 at its other end (partly shown) that fits into a recess (not shown) of a hollow gear selector control shaft 16.
  • a guide shaft 17 Passing through the bore of the gear selector control shaft 16 is a guide shaft 17 which is rotatable about axis 18 through operation of the transmission gear stick (not shown).
  • the guide shaft 17 has a projecting pin 19 that passes through an aperture 20 of the gear selector control shaft 16.
  • the gear selector control shaft 16 may slide along the guide shaft 17 under the action of the solenoid operating shaft 12, but only to an extent determined by the longitudinal length of the aperture 20.
  • the gear selector control shaft 16 has a male part 21 that can engage a female part 22 of a gear selector
  • the positioning cam 23 under the action of the solenoid operating shaft 12. When so engaged, rotation of the guide shaft 17 will cause the positioning cam 23 to rotate.
  • the gear selector control shaft 16 is in the non-engaged position shown in Fig 1 by the action of the spring 14, and rotation of the guide shaft 17 will not cause the positioning cam 23 to rotate.
  • the positioning cam 23 is connected to a shift valve and park arm of the working gears (not shown) of the automatic transmission in the conventional manner.
  • the operator in order to operate the working gears (not shown), the operator first sends the appropriate electrical signal through the wiring 24 to the solenoid 11.
  • the signal causes the operating shaft 12 to retract, bringing the drive arm 13 with it in the direction of arrow A.
  • the control shaft 16 slides along the guide shaft 17 until the projecting pin 19 abuts against the trailing end of the aperture 20.
  • the male part 21 of the shaft 16 is mated with the female part 22 of the positioning cam 23.
  • the present invention has particular application as a vehicle anti-theft mechanism.
  • the engagement of the gear selector control shaft with the gear selector positioning means may be controlled by any one of pneumatic, hydraulic, mechanical or electrical means.
  • the gear selector control shaft 16 may have a terminal female part that can mate with a male part of the positioning cam 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

Un ensemble (10) de sélecteur de vitesse d'une transmission automatique comprend un arbre de guidage (17) relié à un levier de vitesse (non illustré), un moyen (23) de positionnement de sélecteur de vitesse relié aux vitesses de travail (non illustrées) de la transmission automatique, un arbre (16) de commande du sélecteur de vitesse relié audit arbre de guidage (17) et adapté pour engrener ledit moyen (23) de positionnement du sélecteur de vitesse, et un moyen (11) permettant de commander l'engrènement dudit arbre (16) de commande du sélecteur de vitesses avec ledit moyen (23) de positionnement du sélecteur de vitesses. Lorsque ledit arbre (16) de commande du sélecteur de vitesses est engrené avec ledit moyen (23) de positionnement du sélecteur de vitesses, la manipulation dudit arbre de guidage (17) actionne ledit moyen (23) de positionnement de sélecteur de vitesses de manière classique.A gear selector assembly (10) of an automatic transmission comprises a guide shaft (17) connected to a gear lever (not illustrated), a gear selector positioning means (23) connected to the working speeds ( not shown) of the automatic transmission, a shaft (16) for controlling the speed selector connected to said guide shaft (17) and adapted to mesh said means (23) for positioning the speed selector, and means (11) allowing controlling the engagement of said gear selector control shaft (16) with said gear selector positioning means (23). When said gear selector control shaft (16) is meshed with said gear selector positioning means (23), manipulation of said guide shaft (17) actuates said gear selector positioning means (23) so classic.

Description

A GEAR SELECTOR ASSEMBLY
FIELD OF INVENTION:
The present invention relates to gear selector
assemblies of automatic transmissions and in particular to a means for controlling the engagement of the guide shaft with the gear selector positioning means of an automatic
transmission. The invention has particular application as a vehicle anti-theft mechanism.
DISCLOSURE OF THE INVENTION:
According to the invention there is provided a gear selector assembly of an automatic transmission comprising, a guide shaft connected to a gear stick,
a gear selector positioning means connected to the working gears of the automatic transmission,
a gear selector control shaft connected to the said guide shaft and adapted to engage the said gear selector positioning means, and
a means for controlling the engagement of the said gear selector control shaft with the said gear selector
positioning means,
whereby, when the said gear selector control shaft is engaged with the said gear selector positioning means, manipulation of the said guide shaft will operate the said gear selector positioning means in the conventional manner. BRIEF DESCRIPTION OF THE DRAWINGS:
A preferred embodiment of the present invention will now be described with reference to the accompanying drawings in which:- Fig 1 is a partly broken away perspective view of a
gear selector assembly of an automatic transmission according to one embodiment of the invention in its non-engaged position, and
Fig 2 is a perspective view of the gear selector
assembly of Fig 1 in its engaged position.
DESCRIPTION OF PREFERRED EMBODIMENT:
Referring to Fig 1, the gear selector assembly 10 includes an electronically operable solenoid 11 that has an operating shaft 12 connected to a drive arm 13. A spring 14 connects between the solenoid 11 and the drive arm 13. The drive arm 13 has a forked projection 15 at its other end (partly shown) that fits into a recess (not shown) of a hollow gear selector control shaft 16.
Passing through the bore of the gear selector control shaft 16 is a guide shaft 17 which is rotatable about axis 18 through operation of the transmission gear stick (not shown). The guide shaft 17 has a projecting pin 19 that passes through an aperture 20 of the gear selector control shaft 16. The gear selector control shaft 16 may slide along the guide shaft 17 under the action of the solenoid operating shaft 12, but only to an extent determined by the longitudinal length of the aperture 20.
The gear selector control shaft 16 has a male part 21 that can engage a female part 22 of a gear selector
positioning cam 23 under the action of the solenoid operating shaft 12. When so engaged, rotation of the guide shaft 17 will cause the positioning cam 23 to rotate. When the male part 21 is not engaged in the female part 22, the gear selector control shaft 16 is in the non-engaged position shown in Fig 1 by the action of the spring 14, and rotation of the guide shaft 17 will not cause the positioning cam 23 to rotate. The positioning cam 23 is connected to a shift valve and park arm of the working gears (not shown) of the automatic transmission in the conventional manner.
Referring to Fig 2, in order to operate the working gears (not shown), the operator first sends the appropriate electrical signal through the wiring 24 to the solenoid 11. The signal causes the operating shaft 12 to retract, bringing the drive arm 13 with it in the direction of arrow A. By virtue of the engagement of the drive arm 13 with the gear selector control shaft 16, the control shaft 16 slides along the guide shaft 17 until the projecting pin 19 abuts against the trailing end of the aperture 20. At that stage, the male part 21 of the shaft 16 is mated with the female part 22 of the positioning cam 23.
Rotation of the guide shaft 17 (shown by arrow B), through operation of the gear stick (not shown), will now cause the positioning cam 23 to rotate in the conventional manner so allowing for the operation of the working gears of the automatic transmission during the period that the gear selector control shaft 16 is engaged with the positioning cam 23.
In order to isolate the positioning cam 23 from the operation of the guide shaft 17, the appropriate signal is sent to inactivate the solenoid 11. The solenoid 11 will no longer maintain the gear selector control shaft 16 in its engaged position with the positioning cam 23 and the gear selector control shaft 16 will slide in the direction
opposite to arrow A by the action of the spring 14, so disconnecting the linkage between the guide shaft 17 and the positioning cam 23.
It is apparent from the above embodiment that the present invention has particular application as a vehicle anti-theft mechanism.
Various modifications can be made in details of design and construction without departing from the scope or ambit of the invention.
For instance, the engagement of the gear selector control shaft with the gear selector positioning means may be controlled by any one of pneumatic, hydraulic, mechanical or electrical means. Also, the gear selector control shaft 16 may have a terminal female part that can mate with a male part of the positioning cam 23.

Claims

1. A gear selector assembly of an automatic transmission comprising,
a guide shaft connected to a gear stick,
a gear selector positioning means connected to the working gears of the automatic transmission,
a gear selector control shaft connected to the said guide shaft and adapted to engage the said gear selector positioning means, and
a means for controlling the engagement of the said gear selector control shaft with the said gear selector
positioning means,
whereby, when the said gear selector control shaft is engaged with the said gear selector positioning means, manipulation of the said guide shaft will operate the said gear selector positioning means in the conventional manner.
2. A gear selector assembly according to claim 1 wherein the gear selector control shaft has a male part that can engage a female part of the gear selector positioning means by the action of the control means.
3. A gear selector assembly according to claim 1 or claim 2 wherein the gear selector positioning means is a cam arrangement.
4. A gear selector assembly according to claim 3 wherein the gear selector control shaft is hollow and has a
longitudinally extending aperture of predetermined width and length in its wall , and the guide shaft is received through the bore of the gear selector control shaft and has a
circular pin of diameter corresponding to the predetermined width of the aperture passing through the said aperture, so that the gear selector control shaft is rotatably dependent upon the rotation of the guide shaft, the arrangement being such that the gear selector control shaft can slide over the guide shaft under action of the control means a distance corresponding to the predetermined length of the aperture until the male part of the gear selector control shaft engages the female part of the gear selector positioning means so that rotation of the guide shaft will operate the gear selector positioning cam in the conventional manner.
5. A gear selector assembly according to an one of claims 1 to 4 wherein the engagement of the gear selector control shaft with the gear selector positioning means is controlled by any one of pneumatic, hydraulic, mechanical or electrical means .
6. A gear selector assembly acccording to claim 5 wherein the said engagement is controlled by means of electronically operable solenoid.
7. A gear selector assembly according to any one of claims 1 to 5 when used as a vehicle anti-theft means.
8. A gear selector assembly of an automatic transmission substantially as hereinbefore described with reference to the drawings.
EP19890907623 1988-07-07 1989-07-07 A gear selector assembly Withdrawn EP0379550A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU9197/88 1988-07-07
AUPI919788 1988-07-07

Publications (2)

Publication Number Publication Date
EP0379550A1 true EP0379550A1 (en) 1990-08-01
EP0379550A4 EP0379550A4 (en) 1990-12-19

Family

ID=3773204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890907623 Withdrawn EP0379550A4 (en) 1988-07-07 1989-07-07 A gear selector assembly

Country Status (2)

Country Link
EP (1) EP0379550A4 (en)
WO (1) WO1990000483A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2719923B1 (en) * 1994-05-11 1996-06-28 Guy Ferrand Safety device allowing to annihilate the effect of a command acting by mechanical traction.
FR2741023B1 (en) * 1995-11-10 1997-12-19 Brochard Patrick ELECTRO-MECHANICAL ANTI-THEFT DEVICE FOR MOTOR VEHICLES
AU2780797A (en) * 1997-05-02 1998-11-27 Patrick Brochard Electromechanical theft protection for motor vehicles
US6131964A (en) * 1998-12-15 2000-10-17 Westinghouse Air Brake Company SAS fitting for tube and pipe connections
FR2810754A1 (en) 2000-06-22 2001-12-28 Guy Ferrand Command mechanism for e.g. gas opening includes two cooperating elements housed in a first compartment while the other compartment receives an electromagnet, a diodes bridge and a motion detector
JP2015024773A (en) * 2013-07-29 2015-02-05 株式会社ホンダロック Cancel mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232571A (en) * 1979-02-12 1980-11-11 General Motors Corporation Floor mounted shift control mechanism with drive transmitting cables

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1653549A (en) * 1925-03-16 1927-12-20 Corey James Hicks Device for locking the transmissions of automobiles, trucks, and other motor vehicles
GB1374262A (en) * 1971-02-15 1974-11-20 Lucas Industries Ltd Gear selection mechanisms for vehicles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232571A (en) * 1979-02-12 1980-11-11 General Motors Corporation Floor mounted shift control mechanism with drive transmitting cables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9000483A1 *

Also Published As

Publication number Publication date
WO1990000483A1 (en) 1990-01-25
EP0379550A4 (en) 1990-12-19

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