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WO1992006883A1 - Commandes automatiques pour dispositif anti-mise en portefeuille et procede correspondant - Google Patents

Commandes automatiques pour dispositif anti-mise en portefeuille et procede correspondant Download PDF

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Publication number
WO1992006883A1
WO1992006883A1 PCT/US1991/007538 US9107538W WO9206883A1 WO 1992006883 A1 WO1992006883 A1 WO 1992006883A1 US 9107538 W US9107538 W US 9107538W WO 9206883 A1 WO9206883 A1 WO 9206883A1
Authority
WO
WIPO (PCT)
Prior art keywords
trailer
speed
slot
wheel
carried
Prior art date
Application number
PCT/US1991/007538
Other languages
English (en)
Inventor
Wallace H. Hawkins
Original Assignee
Hawkins Wallace H
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 Hawkins Wallace H filed Critical Hawkins Wallace H
Publication of WO1992006883A1 publication Critical patent/WO1992006883A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D53/00—Tractor-trailer combinations; Road trains
    • B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
    • B62D53/08—Fifth wheel traction couplings
    • B62D53/0871—Fifth wheel traction couplings with stabilising means, e.g. to prevent jack-knifing, pitching, rolling, buck jumping
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds

Definitions

  • This invention relates to anti-jackknifing devices between a tractor and a trailer and controls therefor.
  • Various attempts to prevent jackknifing have included the provision of apparatus and method disclosed in U.S. Patent No. 4,700,966, whereby angular movement between a tractor and trailer is limited upon activation of an anti- jackknifing apparatus mounted beneath the trailer. That 5 system requires the driver to manually activate and deactivate the apparatus, based upon certain audio and visual signals rendered by displays within the cab of the tractor indicating that the angle between the tractor and the trailer has exceeded a predetermined angle, as for
  • Another important object of the invention is to provide such apparatus which is automatically disengaged upon either a reduction of the speed of the trailer below a predetermined speed or the activation of a turning signal before making a turn.
  • Another important object of the invention is to equip a trailer with both a mechanical anti-jackknifing apparatus and corresponding electrical sensing and signaling means so that the entire anti-jackknifing system is located solely upon the trailer.
  • a coupling linking a tractor and a trailer having a fifth wheel with a longitudinal outwardly tapering slot may be provided with an anti-jackknifing apparatus which is automatically engaged upon attaining a predetermined speed and automatically disengaged upon either the dropping of the speed of the trailer below said predetermined speed or where the speed is below the predetermined speed and the brake is applied, the activation of a turning signal before making a turn blocks the action of the brake as would engage the anti-jackknifing apparatus.
  • Figure 1 is a schematic view illustrating the various operating components according to a preferred embodiment of the invention positioned on a tractor-trailer and a wiring diagram illustrating the various electrical connections;
  • Figure IA is an end elevation taken on the line 1A-1A in Figure 1 illustrating a rotatable shaft for moving the abutment of the anti-jackknifing apparatus into and out of operative position and switch mechanism actuated thereby for signaling that the apparatus is in operative position;
  • Figure 2 is a perspective view illustrating the positioning of a sensor for generating a signal indicative of the speed of the trailer by sensing frequency of rotation of the wheels of the trailer;
  • Figure 3 is a perspective view illustrating apparatus constructed in accordance with a modified form of the invention in which a rotatable member is spring biased into engagement with a trailer wheel for initiating an output signal from a sensor to automatically place anti-jackknifing components in position to prevent jackknifing of a tractor trailer rig.
  • the drawings illustrate an anti-jackknifing apparatus for use in connection with a coupling of a tractor having a fifth wheel with a longitudinal outwardly tapering slot therein and a trailer having a frame thereunder.
  • An abutment member A is carried by the frame.
  • a power operated drive B moves the abutment member into the slot and retracts it therefrom.
  • a sensor C is carried by the trailer having an output signal reflecting the speed of the trailer.
  • a speed controlled switch D is carried by the trailer actuating the power operated drive to place the abutment in the slot when a predetermined speed is attained by the trailer responsive to the output signal of the sensor.
  • the abutment member of the anti-jackknifing apparatus is placed in operative position in the slot when the trailer reaches a predetermined speed.
  • a signal such as light E observable by a driver of the tractor trailer indicates that the abutment is in the slot.
  • a tractor is shown in broken lines at 10, and a trailer is schematically shown at 11 looking downwardly from the top.
  • the tractor and trailer are pivotally intercoupled trough a conventional fifth wheel 12 which receives the usual kingpin 13.
  • the fifth wheel includes the usual outwardly tapering V-slot defined by the spaced ears 15.
  • FIG. 2 illustrates the sensor C as being carried adjacent a right rear wheel 16 of the trailer.
  • the sensor C includes an outwardly projecting sensing element 17 which extends in operative relation over a magnetic tape 18 secured about the rim 16a of the wheel 16.
  • the sensing element 17 actuates a generator 19 which generates a frequency which actuates a normally open speed controlled switch D at speeds above a predetermined or pre-set speed.
  • the sensor C is carried by a standard 20 suitably secured to the axle 21.
  • the magnetic tape 18 is mechanically secured about the rim 16a as by a strap 22 having a strap fastener 22a. A marginal portion 18a of the tape 18 is not covered by the strap, and the sensing element 17 extends thereover.
  • the signal generated by the sensor C is transmitted to the terminal block 23 ( Figure 1) containing the normally open speed controlled switch D.
  • the block 23 is mounted on a horizontal transversely extending frame member 11a of frame 15 beneath the trailer in a position indicated at 23a.
  • the contacts (not shown) of the speed controlled switch D are closed, supplying power to the terminal 4 of the block 23 actuating the power operated drive B through a suitable actuator such as the air valve 24.
  • the abutment member A is thereby moved into the V-slot between the ears 15.
  • the predetermined frequency at which the switch B is closed may be varied by turning the adjustment screw 25 so as to vary the speed at which the anti-jackknifing apparatus is actuated to limit the angle between the tractor and the trailer.
  • the senor C is connected through the cable 27 to terminals on the block 23 for operating the speed controlled switch D which in turn actuates the air valve 24 through the cable 28.
  • Power is supplied from the plug 29 carried by the bracket 30 at the front of the trailer.
  • the sensor and the speed controlled switch are well known solid state components which may be custom made to specified requirements and supplied by suppliers such as
  • a black wire connector on the block 23 is connected from terminal 4 to the air pressure switch 50 which is located on the trailer and connected into the air service line 31 to the trailer brakes.
  • a white wire is connected from the terminal 3 to the other side of the air pressure switch 50 and energizes terminal 4 when the brakes are applied in excess of, for example, 38 lbs. pressure in the line 31 as in an emergency stop to actuate the anti- jackknifing apparatus.
  • Actuation of the hazard lights normally energizes the right and left turn indicators 32 and 33 supplying current to switch components 32a and 33a for actuation of the anti-jackknifing apparatus.
  • the anti- jackknifing apparatus is disengaged when either the right or left turn signal is actuated, thus blocking such actuation of the anti-jackknifing apparatus. It is important for the hazard lights to actuate the anti-jackknifing apparatus at speeds below the predetermined speed under hazardous conditions and for the turn signals 32 and 33 to de-energize or block such actuation.
  • a signal light E is mounted externally on the trailer at the left-hand side of the driver so as to be visible to the driver when looking into the side mirror 26.
  • Figure IA illustrates a mechanical switching mechanism assuring that the signal light will be on when the anti-jackknifing mechanism is in an operable position.
  • the shaft 14 which carries the abutment A has a flat 14b.
  • the ball rides against the shaft remote from the flat 14b.
  • the ball 26a is pushed in the direction of the arrow by the spring 26b against the flat 14b closing the circuit to the signal light
  • the anti-jackknifing apparatus is automatically disengaged in a manner similar to the engagement procedure described above.
  • the power operated drive B retracts the abutment A from the V- slot responsive to the action of the sensor and switch, thereby disengaging the anti-jackknifing apparatus.
  • Disengagement also occurs upon activation of a turn signal by the driver to allow free pivotal motion between the tractor and trailer. Disengagement in either case turns off the signal light E.
  • the anti-jackknifing apparatus is assured independent of operation by the driver.
  • the anti-jackknifing apparatus is automatically actuated so as to be in position for operation.
  • a signal light is positively controlled by a mechanical switching operation which must operate when the anti-jackknifing apparatus is in operative position.
  • the entire anti- jackknifing apparatus is located entirely on the trailer so that there need be no concern as to whether or not a tractor is properly equipped for use with a given trailer.
  • Sensing apparatus in accordance with a modified embodiment of the invention for use with an anti-jackknifing device for a tractor trailer rig is illustrated in Figure 3.
  • An abutment member A carried by the trailer ( Figure 1) is movable in response to a power operated drive B also carried by the trailer into and out of a slot defined by a fifth wheel 15 limiting the angular relation between the tractor and the trailer.
  • the sensor C includes a sensing element 17.
  • a mounting apparatus 40 positions the sensor C adjacent a wheel 16 on the trailer 11.
  • a rotatable disk member 41 is carried by the mounting apparatus in driven relation to the trailer wheel so as to be driven thereby at a speed indicative of the speed of said trailer wheel.
  • An actuating element such as the magnetic tape 18 of Figure 2 is carried for rotation by a driven member 2 driven by the rotatable member 41 producing an output signal from the sensor including the magnetic tape when said trailer wheel has attained a predetermined speed actuating the power operated drive B in response to the speed controlled switch D to cause the abutment member to move into the slot.
  • a biasing member such as a spring 43 urges the rotatable member into such driven relation to the trailer wheel during operation of the rig.
  • the rubber disc 41 drives the driven member 42 carrying the magnetic tape 18 through a shaft 43 in the bearing 44.
  • the mounting 40 includes a standard 40a pivoted as at 45.
  • a stop member 46 limits the inner pivotal movement of the standard 40a responsive to the spring 43.
  • the method contemplates urging the rotatable member 31 into driven relation to the trailer wheel 16 during operation of the rig.
  • the rotatable member is assured of being in driven relation at all times during operation. While a preferred embodiment of the invention has been described using specific terms, such description is for illustrative purposes only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claims.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention se rapporte à un appareil anti-mise en portefeuille (A, B) qui est monté sur le système d'attelage reliant un véhicule tracteur (10) et une remorque (11), ce système comportant un ensemble avec cinquième roue (12) dans lequel des oreilles écartées (15) définissent une fente longitudinale avec conicité dirigée vers l'extérieur. Un capteur (C) disposé adjacent à une roue arrière (16) de la remorque génère une fréquence qui réagit à la vitesse du véhicule tracteur et de la remorque. Lors de la réception d'une fréquence correspondant à une vitesse supérieure à une vitesse prédéterminée, un commutateur commandé par vitesse (D) enclenche l'appareil anti-mise en portefeuille. De même, ce commutateur (D) désenclenche automatiquement l'appareil, lors de la réception d'un signal de fréquence correspondant à une vitesse inférieure à la vitesse prédéterminée ou, lors de l'apparition de certaines conditions, à l'activation par le conducteur d'un signal de virage. Une lampe témoin (E) montée à l'extérieur sur la remorque s'allume lorsque l'appareil est activé.
PCT/US1991/007538 1990-10-15 1991-10-15 Commandes automatiques pour dispositif anti-mise en portefeuille et procede correspondant WO1992006883A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US59700190A 1990-10-15 1990-10-15
US597,001 1990-10-15
US77057191A 1991-10-03 1991-10-03
US770,571 1991-10-03

Publications (1)

Publication Number Publication Date
WO1992006883A1 true WO1992006883A1 (fr) 1992-04-30

Family

ID=27082703

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/007538 WO1992006883A1 (fr) 1990-10-15 1991-10-15 Commandes automatiques pour dispositif anti-mise en portefeuille et procede correspondant

Country Status (2)

Country Link
AU (1) AU8929391A (fr)
WO (1) WO1992006883A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008804A1 (fr) * 1992-10-13 1994-04-28 Presbat Products Pty. Ltd. Systeme anti-louvoiement
WO1999001330A1 (fr) * 1997-07-02 1999-01-14 Valentino Joseph A Systeme d'alarme en cas de mouvement de 'cisaille' affectant un vehicule a remorque
US20110147142A1 (en) * 2008-07-16 2011-06-23 John Paul Standen Braking control system for a towing vehicle and trailer vehicle combination

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536341A (en) * 1967-10-31 1970-10-27 Dunlop Co Ltd Vehicle anti-skid braking systems
US4107601A (en) * 1977-01-21 1978-08-15 National Marine Service, Inc. Self-adjusting exciter band for shaft speed magnetic pickup
US4518053A (en) * 1982-10-22 1985-05-21 Gerard Queveau Articulated vehicle drive and control system
US4700966A (en) * 1985-07-25 1987-10-20 Red Arrow International Inc. Anti-jackknifing control system, apparatus and method
US4784403A (en) * 1985-07-25 1988-11-15 Red Arrow International, Inc. Anti-jackknifing apparatus
US4795278A (en) * 1986-11-28 1989-01-03 Nippon Seiko Kabushiki Kaisha Bearing assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536341A (en) * 1967-10-31 1970-10-27 Dunlop Co Ltd Vehicle anti-skid braking systems
US4107601A (en) * 1977-01-21 1978-08-15 National Marine Service, Inc. Self-adjusting exciter band for shaft speed magnetic pickup
US4518053A (en) * 1982-10-22 1985-05-21 Gerard Queveau Articulated vehicle drive and control system
US4700966A (en) * 1985-07-25 1987-10-20 Red Arrow International Inc. Anti-jackknifing control system, apparatus and method
US4784403A (en) * 1985-07-25 1988-11-15 Red Arrow International, Inc. Anti-jackknifing apparatus
US4934727A (en) * 1985-07-25 1990-06-19 Red Arrow International, Inc. Anti jackknifing control system, apparatus and method
US4795278A (en) * 1986-11-28 1989-01-03 Nippon Seiko Kabushiki Kaisha Bearing assembly
US4795278B1 (en) * 1986-11-28 1992-11-03 Nippon Seiko Kk Bearing assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008804A1 (fr) * 1992-10-13 1994-04-28 Presbat Products Pty. Ltd. Systeme anti-louvoiement
US5912616A (en) * 1995-02-08 1999-06-15 Valentino; Joseph A. Jackknife warning system for trailered vehicle
WO1999001330A1 (fr) * 1997-07-02 1999-01-14 Valentino Joseph A Systeme d'alarme en cas de mouvement de 'cisaille' affectant un vehicule a remorque
US20110147142A1 (en) * 2008-07-16 2011-06-23 John Paul Standen Braking control system for a towing vehicle and trailer vehicle combination

Also Published As

Publication number Publication date
AU8929391A (en) 1992-05-20

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