US3328051A - Anti-jack knife device - Google Patents

Anti-jack knife device Download PDF

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US3328051A
US3328051A US550032A US55003266A US3328051A US 3328051 A US3328051 A US 3328051A US 550032 A US550032 A US 550032A US 55003266 A US55003266 A US 55003266A US 3328051 A US3328051 A US 3328051A
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wheel
braking
air
coupling
trailer
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US550032A
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Hope Frederick John Charles
Lambert Frederick George
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • 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
    • B62D53/0842—King pins
    • 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
    • B62D53/0878—Fifth wheel traction couplings with stabilising means, e.g. to prevent jack-knifing, pitching, rolling, buck jumping the fifth wheel coupling incorporating braking or restraining means

Definitions

  • an anti-jack knife device is arranged to be readily fitted to a trailer and its coupling pin is adapted to fit the standard fifth wheel coupling which has now been accepted in the commercial vehicle and haulage industry so that there is no necessity to use the device of the present invention with a special matched tractor coupling.
  • the anti-jack knife device is housed in a fifth wheel assembly which is rotatably mounted on the tractor and the coupling pin fixedly secured to the trailer in conventional manner so that the fifth wheel rotates with the trailer.
  • the anti-jack knife device may include a coupling pin h-aving, attached to its lower end, a lateral tongue which is adapted to engage in' the slot of a standard fifth wheel in order to prevent rotational movement.
  • the tongue may be secured to the coupling pin by welding or formed integrally .with the pin.
  • a separate pin may be provided on the tractor or trailer and arranged to engage with a corresponding recess on the corresponding part of the vehicle.
  • the coupling pin is carried in the trailer and carries at its upper end a plurality of first annular discs which are slidably but nonrotatably mounted on the pin. Interposed between at least one pair of adjacent discs is a second annular disc which is slidably but non-rotatably attached to the trailer, means being provided for compressing the stack of discs together thereby resisting turning movement of the coupling pin.
  • the discs are contained within a casing which is secured to the trailer and the second disc or discs are attached to the casing.
  • the means for compressing the stack of discs preferably comprises an annular piston member disposed in the casing above or below the stack of discs.
  • the piston member may be movable to compress the discs by means of fluid admitted under pressure into the casing between the piston member and one end of the casing.
  • the anti-jack knife device may include fluid control means, operable upon articulation of the vehicle to effect and/ or maintain the device in operation.
  • the fluid control means may comprise a cam attached to the coupling pin which, when the trailer has taken up a predetermined angle with respect to the tractor, cooperates with fluid control valves which control fluid pressure to the operating means for the braking means whereby operation of the braking means is effected and/ or maintained irrespective of whether or not the trailer wheel braking system is operative.
  • a pneumatic wheel braking system for an articulated vehicle may include means, separately connected to and operable under air pressure from the service airline, for applying the braking means of the anti-jack knifedevice, and valve means in the air-line to the trailer wheel brake operating means, which valve means open to pass air at a pressure higher than the operatingpressure of the braking means for the anti-jack knife device.
  • Release valve means' may also be provided, operable upon disengagement of the anti-jack knife device, to release the vehicle brakes.
  • FIGURE 1 is a sectional elevation of one construction according to the invention.
  • FIGURE 2 is a plan view of the construction shown in FIGURE 1;
  • FIGURE 3 is a perspective view of a coupling pin according to the invention.
  • FIGURE 4 is a diagrammatic elevation of a semi-trailer including a construction according to the invention.
  • FIGURE 5 is an alternative detail of the construction shown in FIGURE 1;
  • FIGURE 6 shows a typical fifth wheel in conjunction with which the invention may be used
  • FIGURE 7 is a sectional elevation of an alternative construction in accordance with the invention.
  • FIGURE 8 is a second elevation of a currently pre- FIGURE 11 is a line diagram of a two line pneumatic air braking system incorporating an anti-jack knife device according to the invention
  • FIGURE 12 is a sectional elevation of a double check valve of known kind as included diagrammatically in FIGURE 11;
  • FIGURE 13 is a sectional elevation of a push button control valve of known kind as included diagrammatically in FIGURE 11;
  • FIGURE 14 is a line diagram of a further two line pneumatic braking system according to the invention.
  • FIGURE 15 is a line diagram of a three line pneumatic braking system according to the invention.
  • FIGURE 16 is sectional elevation of a construction in accordance with the invention in which the anti-jack knife device is mounted on the tractor, and
  • FIGURE 17 is a side elevation of the construction shown in FIGURE 16.
  • 1 is the bottom flange of a channel grider forming part of the chassis of the trailer and carries on its underside a trailer turntable plate 2.
  • the trailer turntable plate 2 carries, on its upper surface, a pin support block 3 and a caliper support block 4.
  • a coupling pin 5 is rotatably mounted in a bore provided in the pin support block 3 and plate 2.
  • the coupling pin 5 has splines 6 at its upper end, on which a brake disc 7 is secured, and an annular groove 8 at its lower end which is engaged with the fifth wheel on the tract-or (FIGURE 6).
  • the braking disc 7 may alternatively be keyed on to the coupling pin 5 shown in FIGURE 5.
  • a further bearing (not shown) may be provided at the upper end of the king pin to prevent rocking.
  • laterally extending tongue 9 is welded to the coupling 5, the purpose of which .is explained later.
  • the caliper support block 4 carries brake caliper 10 which may be of any suitable construction.
  • the lever op erating arm 11 of the caliper is linked mechanically to a piston (not shown) in an air cylinder 12, which is in turn connected with the pneumatic system for the vehicle road wheel brakes under the control of the driver.
  • FIGURES 8 and 9 The presently preferred construction of the anti-jack knife device in accordance with the invention is shown in FIGURES 8 and 9.
  • the coupling pin 5 is similar at its lower end to that shown in FIGURE 1 having a groove 8 for co-operation with the catch 13 in the fifth wheel shown in FIGURE 6 and also a tongue 9 enabling the coupling pin to be ret-ained non-rotatably between the convergent wall 14 of the slot 15 in the fifth wheel shown in FIGURE 6.
  • the tongue 9 carries a downwardly projecting block at the end remote from the coupling pin and this block has the important function of cooperating with the slot 15 in the fifth wheel (see FIGURE 6) and preventing the tongue slipping out of engagement with the slot 15.
  • the upper part of the coupling'pin 5 is received in a bush 3 secured to the base .2 of the trailer and above the bush 3 an externally splined nut is fixedly secured to the coupling pin 5.
  • the upper part of the coupling pin 5 is enclosed within a casing 111 attached to the base of the trailer and casing 111 includes a cover 112 embodying a bush 113 carrying the uppermost part of coupling pin 5.
  • a stack of annular shaped steel discs 114 are disposed in the annular space between the splined nut 110 and the outer wall of the casing 111 and the inner surfaces of the steel disc 114 are shaped to conform with the splines on the nut 110.
  • discs 114 are free to slide vertically up and down the splines of nut 110 they can only rotate about the axis of coupling pin 5 together with nut 110.
  • interposed between discs 114 are a series of friction discs 115 having a surface with a high coefiicient of friction.
  • Discs 115 are fixed with respect to the trailer base 2 by means of studs 116 which pass through holes in discs 115 and are screwed or pressed into the base of the casing.
  • discs 115 may be attached to the casing by means of splines formed on their outer periphery which cooperate with splines formed on the inside of the casing.
  • the holes in discs 115 are sufficiently large to allow vertical sliding movement of discs 115 although of course the studs 116 prevent any rotational movement of the discs 115.
  • a piston member 117 which is annular in shape and is provided with inner and outer O-rin-gs 118 and 119 giving a fluid tight seal at the inner and outer surfaces of the piston member.
  • the cover 112 is provided with one or more inlets 120 enabling fluid under pressure to be admitted to the interior of the casing between the cover and the top surface of the annular piston member 117.
  • the coupling pin 5 is fitted to a fifth wheel unit as shown in FIGURE 6 in a similar fashion to that described in relation to the device illustrated in FIGURE 1.
  • the lower part of the coupling pin 5 being non-rotatably coupled to the fifth wheel rotates in accordance with pivotal movement of the trailer and this movement is accommodated by relative movement between the discs 114 and the discs 115.
  • the anti-jack knife device When the anti-jack knife device is operated fluid is admitted under pressure through inlet 120 and this drives piston 117 downwardly with the result that the stack of discs 114 and 115 are compressed together. This action has the effect of resisting rotational movement of discs 114 with respect to discs 115 and consequently the turning movement of coupling pin 5 is resisted.
  • piston 117 can be mounted below the stack of discs 114 and 115 and caused to move upwardly by introduction of fluid under pressure to the base of the casing 111.
  • frictional resistance to resist relative movement between the coupling pin and the trailer is provided by a face plate clutch 25 of single or multiplate design.
  • the clutch plates are set in a housing 26 and a pressure plate 27 and other frictional plates 28 splined to the coupling pin for free axial vertical movement but fixed against rotational movement. Operation may be effected by means of a crank lever 29 connected through linkage to the means for applying the vehicle brakes or by other suitable means of clamping the plates together.
  • the anti-jack knife device comprises a coupling pin 83 having a lateral extension 84 adapted for engagement in the fifth wheel of the vehicle.
  • the king pin 83 extends upwardly through a bearing 85 in the base 86 of a casing 87 which has, in addition, top and side walls 88 and 89 respectively.
  • the upper end of the king pin 83 which projects into the casing 87, carries a disc 90 secured to the king pin and having a friction material 91 bonded to the upper surface thereof.
  • annular pressure Plate member 92 Within the space above the disc 90 is mounted an annular pressure Plate member 92, the
  • the plate 92 may be mounted on vertical studs in a similar manner to that shown in FIGURES 8 and 9.
  • compressed air is introduced into the cavity in the upper part of the casing 87 through theinlet 94 as by operation of the vehicle brake in known manner.
  • FIGURE 11 of the drawing shows a two-line pneumatic braking system adapted to operate an anti-jack knife device simultaneously with the trailer brakes.
  • a service airline 37 and an emergency air-line 38 are fed in known manner through tractor/trailer couplings 39 and communicate with an emergency relay valve 40.
  • the relay valve 40 controls the su-ply of air to trailer brake air cylinders 41.
  • a reservoir 42 for air under pressure Also connected to the valve 40 is a reservoir 42 for air under pressure.
  • the reservoir 42 also supplies air to the brake cylinders in the event of failure of the air-lines.
  • An air-line 43 from the service air-line 37 relays service air pressure through a double check valve 44 hereinafter described(FIGURE 12) and a further connection 45 to an anti-jack knife device 46 constructed substantially in accordance with FIGURES 8 and 9.
  • the anti-jack knife device 46 has an extension to the upper part of the coupling pin to which is secured a disc 48 so that the disc 48 is rotatable with the coupling pin.
  • the disc 48 is formed with a cam 49 at a position on the periphery remote from the fluid inlet to the anti-jack knife device.
  • the cam 49 cooperates with the push-rods of two push rod control valves 50 hereinafter described (FIGURE 13).
  • the push rod control valves 50 are supplied with air from the emergency air-line 38 through air-line 51 which includes an air reservoir 52 and a limit valve 53.
  • the air reservoir 52 incorporates a non-return valve (not shown) which prevents air from the air reservoir re-entering the emergency air-line 38 in the event of loss of pressure in the emergency air-line.
  • Air delivery lines 54 from control valves 50 communicate through adouble check valve 55 and a common air line 56 with the double check valve 44.
  • the double check valves 44 and 45 each comprise a T-unionhaving two inlet ports 57 and a side outlet port 58'.
  • the inlet ports 57 are each provided with an inwardly facing annular seating 59 adapted to engage with a shuttle valve 60.
  • the shuttle valve 60 is slidable across the outlet port 58 to engage with one of the seatings 59 and to seal the corresponding inlet port 57 upon pressure being applied to the other inlet port 57.
  • the push rod control valves 50 each comprise a body having a lower inlet port 61 sealed by an inlet valve 62, an internal port 63 and an outlet port 64.
  • the inlet valve 62 is connected to a spindle 65 which carries an exhaust valve 66 at the upper end.
  • the inlet valve 62 is seated by a spring 62a. 7
  • valve spindle '67 On operation of the valve, if the valve spindle '67 is depressed by the push rod 670, the end of the spindle 67 seats on the valve 66 and seals the duct 68. Further downward movement opens the inlet valve 62 and air passes through the valve and out through the outlet port 64. If the spindle 67 is fully raised, the inlet valve 62 reseats 6 and the exhaust valve 66 opens. Air from the outlet line thus exhausts through duct 68 to atmosphere.
  • depression of the foot brake causes the service air line 37 to be pressurised.
  • the brake cylinders 41 are operated through the emergency relay valve 40 to actuate the road Wheel brakes and the anti-jack knife device 46 is operated through connection 43, double check valve 44 and connection 45.
  • the shuttle valve 60 of double check valve 44 prevents air from being discharged through the' connection 56. Release of the foot brake while the tractor and trailer are substantially aligned, causes simultaneous disengagement of the brakes and of the antijack knife device.
  • Articulation of the vehicle causes corresponding rotation of the disc 48 relatively to the push rod valves 50, until after a predetermined movement the push rod of one valve 50 rides up the corresponding side of the cam 49, dependent on the direction of articulation.
  • the valve 50 opens and air passes from the air-line 51 through the double check valve 55 and connection 56 to the double check valve 44.
  • Shuttle valve 60 of double check valve 44 also moves to seal the connection 43 and to permit operation of the anti-jack knife device. If the vehicle returns to the aligned position, the push rod of the operative push button valve 50 will lift and the air will be released from connection 45 and air-line 56 through the duct 68 of the valve spindle 67. The anti-jack knife will thus disengage.
  • FIGURE 11 of the drawings incorporates an anti-jack knife device constructed in accordance with FIGURES 8 and 9, it is to be understood that any of the devices previously described may be used after suitable modification" to include the necessary cam surface.
  • the cam surface 49 may be formed on the brake disc itself.
  • FIGURE 14 shows a further alternative braking system in which a service air-line 69 and an emergency air-line 70 are fed in known manner through tractor trailer couplings 71 and connect to an emergency relay valve 72.
  • the emergency relay valve 72 controls the supply of air to trailer brake air cylinders 73. Also connected to the emergency relay valve 72 is an air reservoir 74 which supplies air to the brakes in the event of failure of the air lines.
  • a branch air-line 75 from the service air-line 69 supplies air for the operation of an anti-jack knife device 77 through a double check valve 75e and air connection 76.
  • a pressure limiting valve 82 divides the service air-line 69 into sections 69a and 69b at a position intermediate the take off point for the branch air-line 75 and the emergency relay valve 72.
  • the pressure limiting valve 82 is set to lift and to pass air to the emergency relay valve 72 at higher pressure than the pressure required to operate the anti jack knife device 77.
  • a further air line 75d connects the'service air line 70 with the second inlet port of the double check valve 752 through a pressure regulating valve 75c and a pilot air valve 75b.
  • the pilot air valve 75b is a diaphragm type valve which opens when air pressure is applied though line 75a from line 75.
  • the high pressure air will thus enter section 6912 of the service air-line 69 and operate the emergency relay valve 72 to apply the trailer brakes.
  • FIGURE 15 shows the manner of connecting an antijack knife device in accordance with the invention into a three line pneumatic braking system in which a service airline 201, in auxiliary 202 and an emergency air-line 203 are fed in known manner to a tractor trailer coupling and connect to an emergency relay valve in known manner.
  • a branch air-line 204 from emergency air-line 203 is connected via a limiting valve 205 to one side of a pilot valve 206.
  • Pilot valve 206 is arranged to control admission of air from emergency air-line 203 via a first double check valve 207 to an anti-jack knife device 208.
  • Pilot valve 206 is controlled by an air-line 209 which is connected via a second double check valve 210 to the service air-line 201.
  • the second double check valve 210 is also connected to the auxiliary air-line 202 and to the first double check valve 207.
  • the braking system operates as follows.
  • the service airline 201 Under light braking conditions the service airline 201 is pressurised to a low pressure by the movement of the drivers foot onto the foot brake pedal and this causes the second double check valve 210 to slide left- Wardly as shown in the drawing and admit air from line 201 through line 209 to the pilot valve 206.
  • This low pres sure signal causes the pilot valve 206 to open and admit air from the emergency air-line at a pressure suflicient to operate the anti-jack knife device 208 to the double check valve 207.
  • the pressure of air admitted from the emergency air-line 203 causes the first double check valve 207 to move downwardly as shown in the drawing and this allows the air to be admitted to the anti-jack knife device 208 and cause it to operate.
  • the double check valve 210 is moved rightwardly as shown in the drawing by the high pressure generated in the auxiliary air-line 202, Air is then passes from air-line 202 to the first double check valve 207 and then into the anti-jack knife device 208.
  • FIGURES 16 and 17 show an anti-jack knife device fitted to the fifth wheel rather than to the coupling pin.
  • a fifth Wheel 301 is fixedly secured to a plate 302 by means of trunnions 303.
  • Plate 302 is secured at its base to a drum 304 by means of an outwardly extending flange 305 integral with the drum 304.
  • Drum 304 is arranged to be rotatable within a ring 306, a bearing 307 comprising a ring of ball bearings being disposed between flange 305 and ring 306.
  • Ring 306 is hollowed out to provide an annular chamber 308 for receiving an annular piston 309.
  • Annular piston 309 carries a series of outwardly extending dowel pins 310 which locate in sleeves formed in the inner wall of chamber 308 so that the piston cannot rotate in the chamber 308 but is slidable vertically therein.
  • Flange 305 overlays the mouth of chamber 308 and the underside of the overlying portion of flange 305 is provided with an annular friction face 311.
  • One or more air inlets 312 are provided in the base of chamber 308 for the admission of fluid under pressure.
  • pin 313 forwardly of the fifth wheel 301 and mounted on the plate 302 is a pin 313 which is arranged to engage with a slot in the underside of the trailer when the trailer and tractor are coupled together so that with the pin 313 engaging in the slot of the trailer articulates with the fifth wheel 301.
  • Pin 313 is pivotable about a point 314 and is provided with centralising springs 315.
  • the brake system comprising, in combination: vehicle braking means; fifth wheel coupling means for resisting jack knife movement including a fifth wheel mounted on said tractor unit and coupling pin means establishing a draft connection between said tractor and trailer units, said coupling pin means including means for effecting non-rotatable engagement between the coupling pin and said fifth wheel, one of said fifth wheel and said coupling pin being mounted for rotational movement; braking means for resisting rotation of the rotatably mounted portion of said fifth wheel coupling mechanism to thereby resist jack knife movement of said articulated vehicle, said braking means including a first flat annular braking surface adapted to be mounted on one of said vehicles so as to be non-rotatable therewith, a second flat braking surface fixed with respect to the rotatably mounted portion of said fifth-wheel coupling means, said first annular braking surface further adapted to be movable into face to face engagement with said second braking surface, whereby upon actuation of said braking means rotation of said fifth
  • the brake system of the vehicle comprising, in combination: vehicle braking means; fifth wheel coupling means for resisting jack knife movement, including a fifth wheel adapted to be fixedly secured to said tractor unit, a coupling pin adapted to be rotatably mounted at its upper end in said trailer unit, and means for effecting non-rotatable engagement of said coupling pin at its lower end with said fifth wheel; braking means for resisting rotation of said coupling pin to thereby resist jack knife movement of said articulated vehicle, said braking means including at least one first flat braking surface mounted on said coupling pin so as to be non-rotatable relative thereto, at least one second flat braking surface adapted to be mounted so as to be non-rotatable relative to said trailer, and at least one of said first and second flat braking surfaces being movable into face to face engagement with the other of said braking surfaces upon actuation of the braking means; and fluid pressure means for actuating said braking means of said fifth wheel coup
  • the brake system of the vehicle comprising, in combination: vehicle braking means; fifth wheel coupling means for resisting jack knife movement, including a fifth wheel adapted to be rotatably mounted on said tractor unit, a coupling pin adapted to be fixedly secured at its upper end to said trailer unit, and means for effecting non-rotatable engagement of said coupling pin at its lower end with sail fifth wheel; braking means for resisting rotation of said fifth wheel to thereby resist jack knife movement of said articulated vehicle, said braking means including a first flat annular braking surface adapted to be mounted on said tractor so as to be non-rotatable therewith, a second flat braking surface fixed with respect to said fifth wheel, said first annular braking surface further adapted to be movable into face to face engagement With said second, braking surface, whereby upon actuation of said braking means rotation of said fifth wheel is resisted; and fluid pressure means for actuating said braking means of said fifth wheel coupling means
  • apparatus for resisting jack knife movement of the vehicle comprising, in combination: fifth wheel coupling mechanism, including a fifth wheel adapted to be fixedly secured to said tractor unit, a coupling .pin adapted to be rotatably mounted at its upper end in said trailer unit, and means for effecting non-rotatable engagement of said coupling pin at its lower end with said fifth wheel; braking means for resisting rotation of said coupling pin to thereby resist jack knife movement of said articulated vehicle, said braking means including a plurality of first annular disks which are mounted on the upper end of said coupling pin so as to be slidable axially but non-rotatable with respect thereto, at least one pair of adjacent coupling pin disks having interposed therebetween a second annular disk which is mounted on said trailer unit so as to be slidable in the same direction as said first annular disks but non-rotatable with respect to said trailer unit; and fluid pressure means for actuating the stack of disk
  • apparatus for resisting jack knife movement of the vehicle comprising, in combination: fifth wheel coupling mechanism, including a fifth wheel adapted to be fixedly secured to said tractor unit, a coupling pin adapted to be rotatably mounted at its upper end in said trailer unit, and means for effecting non-rotatable engagement of said coupling pin at its lower end with said fifth wheel; braking maens for resisting rotation of said coupling pin to thereby resist jack knife movement of said articulated vehicle, said braking means including a plurality of first annular disks which are mounted on the upper end of said coupling pin so as to be slidable axially but non-rotatable with respect thereto, at least one pair of adjacent coupling pin disks having interposed therebetween a second annular disk which is mounted on said trailer unit so as to be slidable in the same direction as said first annular disks but non-rotatable with respect to said trailer unit; and fluid pressure means for actuating the stack of
  • a fifth wheel coupling for an articulated vehicle comprising a tractor and trailer and having means for resisting jack knife movement of the vehicle, said coupling comprising:
  • a fifth wheel adapted to be rotatably mounted on said tractor
  • a coupling pin adapted to be fixedly secured at its upper end to said trailer
  • braking means including a first flat annular braking surface adapted to be mounted on said tractor so as to be non-rotatable therewith,
  • said first annular braking surface further adapted to be slidable into face to face engagement with said second braking surface
  • a fifth wheel coupling for an articulated vehicle comprising a tractor and trailer and having means for resisting jack knife movement of the vehicle, said coupling comprising:
  • a fifth wheel adapted to be fixedly secured to said tractor
  • braking means including at least one first fiat braking surface mounted on said coupling pin so as to be non-rotatable relative thereto,
  • At least one second flat braking surface adapted to be mounted so as to be non-rotatable relative to said trailer
  • At least one of said first and second flat braking surfaces being slidable into face to face engagement with the other of said braking surfaces upon actuation of the braking means.
  • said casing having means for the introduction of fluid under pressure between said slidable braking surface and said casing
  • said means for effecting non-rotatable engagement of said coupling pin with the fifth wheel comprises a tongue secured to the lower end of said coupling pin and extending laterally therefrom, said tongue being engageable in the fifth wheel slot.
  • said braking means further includes fluid pressure means, including a supply of fluid under pressure, operating means comprising a cam secured to said coupling pin, and cam followers forming the actuating plungers of fluid control valves which are positioned between said fluid supply and said braking means, whereby rotation of said cam with said coupling pin controls the application of pressurized fluid to said braking means.
  • said casing containing said disks is adapted to be secured to said trailer, and
  • said second annular disk is attached to said casing.
  • said means for compressing said disks comprises an annular piston member disposed in said casing, and means for moving said piston member into engagement with said stack to thereby compress the disks together.
  • said casing includes an inlet disposed between said piston member and one end of said casing,

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)
US550032A 1963-08-29 1966-05-13 Anti-jack knife device Expired - Lifetime US3328051A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB34290/63A GB1075802A (en) 1963-08-29 1963-08-29 Anti jack-knife device for use with fifth-wheel couplings particularly on articulated vehicles
GB3970563 1963-10-08
GB4248463 1963-10-28
GB4270663 1963-10-29
GB875064 1964-03-02
GB20456/65A GB1142849A (en) 1963-08-29 1965-05-14 Friction damping device for fifth wheel couplings

Publications (1)

Publication Number Publication Date
US3328051A true US3328051A (en) 1967-06-27

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Application Number Title Priority Date Filing Date
US550032A Expired - Lifetime US3328051A (en) 1963-08-29 1966-05-13 Anti-jack knife device

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US (1) US3328051A (de)
CH (1) CH447834A (de)
DE (2) DE1555677A1 (de)
GB (2) GB1075802A (de)
SE (1) SE326378B (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400948A (en) * 1967-01-09 1968-09-10 Carl G. Matson Trailer load-transferring and antisway hitch
US3430986A (en) * 1967-06-27 1969-03-04 John R Long Anti-jackknife device for fifth-wheel tractor-trailer connections
US3439936A (en) * 1967-07-14 1969-04-22 Highway Products Inc Stabilizing control for articulated vehicles
US3515409A (en) * 1967-10-02 1970-06-02 Mather Co Stabilizing device for articulated vehicles
US3517946A (en) * 1967-11-28 1970-06-30 Houdaille Industries Inc Fifth wheel viscous damper construction
US3520557A (en) * 1967-10-26 1970-07-14 Houdaille Industries Inc Fifth wheel coupler with rotary damping
US3749420A (en) * 1972-04-05 1973-07-31 Continental Oil Co Stabilized coupler for tractor drawn trailers
US3874699A (en) * 1968-11-23 1975-04-01 Artiloc Inc Devices for inhibiting the jack-knifing of articulated vehicles
US3985369A (en) * 1972-02-10 1976-10-12 Artiloc U.S.A. Inc. Protective cover for an anti-jack knife device
US4119330A (en) * 1976-12-16 1978-10-10 Trucksafe, Inc. Jackknife restraining mechanism
JPS5628007A (en) * 1979-08-14 1981-03-19 Tokyu Car Corp Locking apparatus for vehicle
US4452466A (en) * 1982-11-22 1984-06-05 Herbert William B Trailer control device for tractor-trailer vehicles
US4469347A (en) * 1980-08-23 1984-09-04 Robert Schenk Gmbh & Co. Kg Articulated multiaxle vehicle
JPS60102109U (ja) * 1983-12-19 1985-07-12 日野自動車株式会社 アンチジヤツクナイフ機構の制御装置
US4784403A (en) * 1985-07-25 1988-11-15 Red Arrow International, Inc. Anti-jackknifing apparatus
US4898399A (en) * 1988-09-26 1990-02-06 Aramar Inc. Trailer assembly and method
US5259640A (en) * 1991-05-16 1993-11-09 Mackey Patrick J Apparatus and methods for inhibiting jackknifing of articulated vehicles
US5503421A (en) * 1991-07-09 1996-04-02 Delisser; Chrys O. Clutch and control mechanism for fifth wheel
US20080042398A1 (en) * 2006-06-13 2008-02-21 Mater Robert F Jr Pin box assembly for trailer
US8960703B1 (en) * 2013-11-07 2015-02-24 Roy A. Hansen Trailer safety assembly

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DE2420203B2 (de) * 1974-04-26 1979-07-12 Hamburger Hochbahn Ag, 2000 Hamburg Einrichtung zum Schutz eines Gelenk-Straßenfahrzeugs gegen übermäßiges Einknicken
HU188668B (en) * 1981-05-14 1986-05-28 Autoipari Kutato Es Fejlesztoe Vallalat,Hu Swing angle influencing device with friction brake for jointed motor vehicle
GB2174160A (en) * 1985-03-02 1986-10-29 John Smith Articulated vehicle braking system
ES2264404B1 (es) * 2006-08-01 2007-10-16 Jose Maria Vilalta Vidal Dispositivo de conexion basculante para vehiculos.
CN110667322B (zh) * 2019-09-29 2021-06-08 陕西重型汽车有限公司 一种转盘式锁止机构及其操作方法

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US2613946A (en) * 1951-03-23 1952-10-14 Union Metal Mfg Co Backing clamp for trailers
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US3063739A (en) * 1957-09-17 1962-11-13 Davies Magnet Works Ltd Trailer fifth wheel couplings
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US3063739A (en) * 1957-09-17 1962-11-13 Davies Magnet Works Ltd Trailer fifth wheel couplings
US3036845A (en) * 1959-08-18 1962-05-29 Till William Bryan Anti-jackknifing device
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Cited By (26)

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Publication number Priority date Publication date Assignee Title
US3400948A (en) * 1967-01-09 1968-09-10 Carl G. Matson Trailer load-transferring and antisway hitch
US3430986A (en) * 1967-06-27 1969-03-04 John R Long Anti-jackknife device for fifth-wheel tractor-trailer connections
US3439936A (en) * 1967-07-14 1969-04-22 Highway Products Inc Stabilizing control for articulated vehicles
US3515409A (en) * 1967-10-02 1970-06-02 Mather Co Stabilizing device for articulated vehicles
US3520557A (en) * 1967-10-26 1970-07-14 Houdaille Industries Inc Fifth wheel coupler with rotary damping
US3517946A (en) * 1967-11-28 1970-06-30 Houdaille Industries Inc Fifth wheel viscous damper construction
US3874699A (en) * 1968-11-23 1975-04-01 Artiloc Inc Devices for inhibiting the jack-knifing of articulated vehicles
US3985369A (en) * 1972-02-10 1976-10-12 Artiloc U.S.A. Inc. Protective cover for an anti-jack knife device
US3749420A (en) * 1972-04-05 1973-07-31 Continental Oil Co Stabilized coupler for tractor drawn trailers
US4119330A (en) * 1976-12-16 1978-10-10 Trucksafe, Inc. Jackknife restraining mechanism
JPS5628007A (en) * 1979-08-14 1981-03-19 Tokyu Car Corp Locking apparatus for vehicle
JPS5824283B2 (ja) * 1979-08-14 1983-05-20 東急車輌製造株式会社 車輛のロツク装置
US4469347A (en) * 1980-08-23 1984-09-04 Robert Schenk Gmbh & Co. Kg Articulated multiaxle vehicle
US4452466A (en) * 1982-11-22 1984-06-05 Herbert William B Trailer control device for tractor-trailer vehicles
JPS60102109U (ja) * 1983-12-19 1985-07-12 日野自動車株式会社 アンチジヤツクナイフ機構の制御装置
JPS6347121Y2 (de) * 1983-12-19 1988-12-06
US4784403A (en) * 1985-07-25 1988-11-15 Red Arrow International, Inc. Anti-jackknifing apparatus
US4790556A (en) * 1985-07-25 1988-12-13 Red Arrow International, Inc. Anti-jackknifing apparatus
US4898399A (en) * 1988-09-26 1990-02-06 Aramar Inc. Trailer assembly and method
US5259640A (en) * 1991-05-16 1993-11-09 Mackey Patrick J Apparatus and methods for inhibiting jackknifing of articulated vehicles
US5503421A (en) * 1991-07-09 1996-04-02 Delisser; Chrys O. Clutch and control mechanism for fifth wheel
US20080042398A1 (en) * 2006-06-13 2008-02-21 Mater Robert F Jr Pin box assembly for trailer
US20100072728A1 (en) * 2006-06-13 2010-03-25 Cequent Performance Products, Inc. Pin box assembly for trailer
US7997608B2 (en) * 2006-06-13 2011-08-16 Cequent Performance Products, Inc. Pin box assembly for trailer
US8100427B2 (en) 2006-06-13 2012-01-24 Cequent Performance Products, Inc. Pin box assembly for trailer
US8960703B1 (en) * 2013-11-07 2015-02-24 Roy A. Hansen Trailer safety assembly

Also Published As

Publication number Publication date
SE326378B (de) 1970-07-20
GB1142849A (en) 1969-02-12
DE1580715A1 (de) 1970-06-11
GB1075802A (en) 1967-07-12
DE1555677A1 (de) 1969-09-04
CH447834A (de) 1968-03-29

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