WO2000056590A1 - Systeme de suspension pour cabine basculante - Google Patents

Systeme de suspension pour cabine basculante Download PDF

Info

Publication number
WO2000056590A1
WO2000056590A1 PCT/AU2000/000244 AU0000244W WO0056590A1 WO 2000056590 A1 WO2000056590 A1 WO 2000056590A1 AU 0000244 W AU0000244 W AU 0000244W WO 0056590 A1 WO0056590 A1 WO 0056590A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
suspension system
torque rod
cab
bar
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.)
Ceased
Application number
PCT/AU2000/000244
Other languages
English (en)
Inventor
Peter Morgan
Troy Webb
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.)
P & A Morgan Pty Ltd And T & K Webb Automotive Pty Ltd As Trustees For M W Air Ride Trust
Original Assignee
P & A Morgan Pty Ltd And T & K Webb Automotive Pty Ltd As Trustees For M W Air Ride Trust
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 P & A Morgan Pty Ltd And T & K Webb Automotive Pty Ltd As Trustees For M W Air Ride Trust filed Critical P & A Morgan Pty Ltd And T & K Webb Automotive Pty Ltd As Trustees For M W Air Ride Trust
Priority to AU32650/00A priority Critical patent/AU758312B2/en
Publication of WO2000056590A1 publication Critical patent/WO2000056590A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension

Definitions

  • the present invention relates to vehicles having a tilting cab.
  • the invention relates to trucks and semitrailers and earth moving equipment .
  • a typical truck with a tilting cab generally has a suspension system which is inferior to that for standard trucks .
  • the problem with a tilting cab truck is that the suspension system must be arranged to allow the cab frame to tilt down approximately through a 90° angle.
  • shock absorbers are normally located at an acute angle extending downwardly and rearwardly from a front part of the underside of the cab.
  • the shock absorbers operate through a lever system to change the direction of travel from vertical to near horizontal thus making the operation very inefficient by not controlling dampening in the same direction as the travel of the cab.
  • the present invention provides an alternative method of suspension system which has the objective of reducing the problems associated with the suspension systems of existing trucks with tilting cabs.
  • a suspension system for a vehicle having a tilting cab having a first support connectable to a shock absorber means and a second support connectable to the cab frame, wherein the first support is pivotable with respect to the second frame.
  • the first support comprises an elongate member.
  • the second support comprises an elongate member.
  • the second support may be located at least partly within the first support.
  • the second support preferably extends through the centre of the first support.
  • the first support is preferably a hollow rod.
  • the second support may be a cylindrical shaped bar.
  • the second support preferably extends beyond both ends of the first support .
  • the ends of the first and second support may be connected together through a pivoting means.
  • the pivoting means may include pivot pins which are locatable through centrally located holes in the ends of each of the first and second supports.
  • ends of the second support are connected to parts of the cab frame.
  • ends of the second support are provided with annular grooves or spaces which are adapted to receive forked portions or sleeve portions of a supporting structure of the cab frame.
  • the first support is located inside the second support .
  • the shock absorbing means includes an air bag and shock absorber.
  • the shock absorbing means includes a bar which is connected to ends of the first support .
  • the first and second supports are arranged side by side in parallel and are connected at their ends through end pieces which permit the supports to pivot with respect to each other.
  • the first support is connected through a hinge member to the second support .
  • each support comprises at least two bars aligned in parallel with the second support located at least partly within the first support.
  • Each support may comprise a plurality of end to end bars connected together through an intermediate connection means .
  • Figure 1 shows a schematic diagram of a front view of a suspension system according to the preferred embodiment of the present invention
  • Figure 4 shows a side view of the suspension system shown in Figure 3;
  • Figure 5 shows a plan view of the suspension system shown in Figure 3; and Figure 6 shows an opposite side view of the suspension system shown in Figure 3.
  • the suspension system 11 consists of a horizontally extending cylindrical bar 12 with another cylindrical bar, inner support bar 13 of small diameter extending through its centre and extending beyond each end.
  • Each end of the bars 12 and 13 are provided with open ends, with a centrally located bolt hole to which a thick washer 14 is bolted covering both the cylindrical bar 13 and the lower end of a cab mount bar 16, which prevents any sideways movement of any of the components.
  • Each end of the inner bar 13 is adapted to receive the lower end of the cab mount bar 16, this cab mount bar 16 is provided with axially aligned planar sleeve elements 17 which fit over the inner bar 13.
  • the cab mount bars 16 are freely rotatable on the ends of the inner bar 13 so that they pivot with or independently of the inner bar 13 to allow the cab to tilt.
  • the outer cylindrical bar 12 is connected directly to the suspension arrangement 18 of the vehicle cab.
  • This suspension arrangement 18 consists of left and right side air bags 19, 20.
  • Each of the shock absorbers 21, 21 are connected to triangular shaped clasping brackets.
  • the air bags 19, 20 are connected to a pneumatic valve system 23 consisting of two hoses 40, 41, which are connected to a height control valve 42.
  • a ball joint system 43 with a threaded rod is connected between the outer bar 12 and valve 23.
  • the bottom of the shark fin bracket is connected to the chassis bracket 29, while the fin part of the shark fin bracket 33 is connected to one end of the torque rod 32 which at its other end is connected to the outer cylindrical bar 12.
  • the torque rod device 32 With the torque rod device locating the outer bar 12 in the above manner the cabin is allowed to tilt with the outer bar 12, but the torque rod device 32 prevents the air bags 20 from turning the outer bar 12 whilst under air pressure.
  • the shark fin bracket 33 and torque rod 34 are located at a position to the right hand side of the mid point of outer bar 12.
  • each end of the inner bar 13 is provided with a downwardly extending lever 30 from the old suspension system of the cab.
  • This lever 30 is adapted to strike forked tongue attached to the ends of bar 12 and extending horizontally so as to straddle either side of the lever 30, thus keeping the suspension in line at all times no matter what position the cab is in.
  • Suspension arrangement 48 includes a pivot bar 49 which runs from the front to the back of the cabin along the whole of the other side of the cabin.
  • an outer bar 60 is provided and an inner bar 61 extends through the outer bar beyond both ends thereof.
  • the other side of the cabin is supported on each end of the inner cylindrical bar 61 which protrudes beyond each end of the outer cylinder 60.
  • the suspension arrangement 48 including air bags 50 and shock absorbers 51 at their upper ends which are welded to outer bar 60.
  • Torque rods are connected to the outer bar 60 through a welding bar.
  • Each torque rod 52 is pivotally connected to a support bracket 54 extending upwardly from the cross member 49 through a rubber bush and located approximately one third of the distance along the cross member 49 from the suspension arrangement 48.
  • the cabin is connected to inner bars 61 and the inner bars allow the cabin 40 pivot with respect to the outer bar 60.
  • the cabin is able to lift off the suspension arrangement 41, but is supported on the inner cylindrical bar of the pivot bar 49 through the suspension arrangement 48.
  • the cabin 40 is connected through anchor mount bracket 64 through a locking pin 66 to cab anchor mounts 65 welded to the chassis.
  • the bar 43 is anchored to the chassis permanently through anchor mount brackets 67 which are each pinned through a pin 68 to an anchor mount 69 welded to the chassis.
  • the above embodiments exemplify how the pivot bar arrangement may be used for a forward tilt cabin or a side tilt cabin.
  • the present invention encompasses a pivot bar arrangement in which the outer bar is connected directly to part of a vehicle and the inner bar is connected to another part of the vehicle.
  • a suspension arrangement may be connected directly to the outer bar or alternatively the suspension may be connected through appropriate frame supports to the inner bar so that the suspension pivots with the inner bar and whatever else it is connected to.
  • part of the suspension may be connected indirectly or directly to the inner bar and the rest of the suspension to be connected indirectly or directly to the outer bar.
  • the pivot bar arrangement may be replaced by equivalent assemblies including more than one pivot bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention porte sur un système (1) de suspension d'un véhicule à cabine basculante comportant un premier support (12) relié à un moyen d'amortissement (21) et un deuxième support (13) reliée à la structure de la cabine, le premier support (12) pouvant pivoter par rapport au deuxième support (13).
PCT/AU2000/000244 1999-03-24 2000-03-24 Systeme de suspension pour cabine basculante Ceased WO2000056590A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU32650/00A AU758312B2 (en) 1999-03-24 2000-03-24 A suspension system for a tiltable cab

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPP9396A AUPP939699A0 (en) 1999-03-24 1999-03-24 A suspension system for a vehicle
AUPP9396 1999-03-24

Publications (1)

Publication Number Publication Date
WO2000056590A1 true WO2000056590A1 (fr) 2000-09-28

Family

ID=3813592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2000/000244 Ceased WO2000056590A1 (fr) 1999-03-24 2000-03-24 Systeme de suspension pour cabine basculante

Country Status (2)

Country Link
AU (1) AUPP939699A0 (fr)
WO (1) WO2000056590A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250263133A1 (en) * 2024-02-19 2025-08-21 CNH Industrial Brasil Ltda. System and method for work vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948341A (en) * 1974-12-23 1976-04-06 Ford Motor Company Tilt cab truck
EP0047628A1 (fr) * 1980-09-06 1982-03-17 Ford Motor Company Limited Support pour la carosserie d'un véhicule à moteur
WO1992019484A1 (fr) * 1991-05-03 1992-11-12 Ab Volvo Butee d'arret pour position haute et basse d'une cabine de vehicule
EP0798198A1 (fr) * 1996-03-29 1997-10-01 MAN Nutzfahrzeuge Aktiengesellschaft Palier avant pour la cabine basculante d'un camion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948341A (en) * 1974-12-23 1976-04-06 Ford Motor Company Tilt cab truck
EP0047628A1 (fr) * 1980-09-06 1982-03-17 Ford Motor Company Limited Support pour la carosserie d'un véhicule à moteur
WO1992019484A1 (fr) * 1991-05-03 1992-11-12 Ab Volvo Butee d'arret pour position haute et basse d'une cabine de vehicule
EP0798198A1 (fr) * 1996-03-29 1997-10-01 MAN Nutzfahrzeuge Aktiengesellschaft Palier avant pour la cabine basculante d'un camion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250263133A1 (en) * 2024-02-19 2025-08-21 CNH Industrial Brasil Ltda. System and method for work vehicle

Also Published As

Publication number Publication date
AUPP939699A0 (en) 1999-04-15

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