WO2005080181A1 - Verin de basculement de cabine - Google Patents

Verin de basculement de cabine Download PDF

Info

Publication number
WO2005080181A1
WO2005080181A1 PCT/SE2005/000132 SE2005000132W WO2005080181A1 WO 2005080181 A1 WO2005080181 A1 WO 2005080181A1 SE 2005000132 W SE2005000132 W SE 2005000132W WO 2005080181 A1 WO2005080181 A1 WO 2005080181A1
Authority
WO
WIPO (PCT)
Prior art keywords
cab
vehicle
tilt cylinder
cylinder
tilt
Prior art date
Application number
PCT/SE2005/000132
Other languages
English (en)
Inventor
Tomas SKEPPSTRÖM
Original Assignee
Scania Cv Ab (Publ)
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 Scania Cv Ab (Publ) filed Critical Scania Cv Ab (Publ)
Priority to DE112005000282T priority Critical patent/DE112005000282T5/de
Priority to BRPI0506570-4A priority patent/BRPI0506570A/pt
Publication of WO2005080181A1 publication Critical patent/WO2005080181A1/fr

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

Definitions

  • the present invention relates to a cab tilt cylinder for a vehicle cab, whereby the cylinder housing of the cab tilt cylinder is fastened pivotably to a relatively fixed portion of the vehicle.
  • Heavy vehicles such as trucks often have a tiltable cab beneath which the vehicle's engine is situated.
  • the cab can be tilted forwards about a tilt point to render the engine accessible for servicing.
  • US 3 642 316 A refers to a cab tilt cylinder for a vehicle whereby the cylinder housing of the cylinder is fastened to the vehicle's frame at the end of the cylinder opposite to the end where the cylinder's piston rod protrudes from the cylinder housing.
  • a problem with known tiltable cabs is that the cab tilt cylinder is subject to great stresses, particularly when the cab has to be lowered back down, since the distance between the cab's tilt point and the cylinder's piston rod is very short in the cab's lowered position.
  • a cab tilt cylinder comprising the characteristics of claim 1 affords the advantage that the distance between the cab's tilt point and the cylinder's piston rod does not shorten considerably during the cab tilt movement. The stresses on the cab tilt cylinder are thus reduced by the fact that the lever between the cab's tilt point and the cylinder's fastening point in the chassis does not approach zero.
  • Figure 1 depicts schematically a forward portion of a vehicle, with the vehicle cab in its lowered position
  • Figure 2 depicts schematically a forward portion of a vehicle, with the vehicle cab in its raised position.
  • the present invention relates to a cab tilt cylinder 2 for a vehicle cab 4 whereby the end 6 of the cylinder housing 8 of the cab tilt cylinder 2 from which the piston rod 10 protrudes is fastened pivotably to a relatively fixed portion 12 of the vehicle 14.
  • Figure 1 depicts schematically a forward portion of a vehicle 14, with the vehicle cab 4 in the lowered position.
  • a cab tilt cylinder 2 is arranged on at least one side of the vehicle 14 and fastened to a relatively fixed portion 12 of the vehicle 14, whereby the relatively fixed portion 12 may for example be a wheel suspension (not depicted) of the vehicle but is preferably the frame 16 of the vehicle 14.
  • the cab tilt cylinder 2 is preferably arranged forward of the front wheels 18 of the vehicle 14.
  • the cab tilt cylinder 2 comprises a cylinder housing 8 and a piston rod 10.
  • the cylinder housing 8 of the cab tilt cylinder 2 is fastened pivotably, at its end 6 from which the piston rod 10 protrudes, to a relatively fixed portion 12 of the vehicle 14.
  • the piston rod 10 is fastened to the cab 4 of the vehicle 14 at its end 19 which is arranged on the outside of the cylinder housing 8.
  • the cab 4 of the vehicle 14 further exhibits a tilt point 20 about which the cab 4 of the vehicle 14 is pivotably fastened.
  • Figure 2 depicts schematically a forward portion of a vehicle 14, with the vehicle cab 4 in the raised position.
  • the cab 4 is tilted so far about the tilt point 20 of the cab 4 that the centre of gravity 22 of the cab 14 is forward of the tilt point 20 of the cab 4, which means for example that the angle of opening between the cab's raised and lowered positions has to be of the order of 60 degrees for the cab 4 not to be able to fall back down by itself.
  • a stay 24 is used between the cab 4 and the frame 16 of the vehicle 14 to lock the cab 4 in its raised position.
  • the cab tilt cylinder 2 pivots about its fastening point 26 on the frame 16 of the vehicle 14, while the other end 28 of the cab tilt cylinder 2, which in the drawing is the lower end, effects a pivoting movement A towards the front wheels 18 of the vehicle 14.
  • the steering gear (not depicted) of the vehicle 14 is arranged on the other side of the vehicle 14.
  • the lever arm B of the cab tilt cylinder 2 relative to the tilt point 20 of the cab 4 will remain relatively constant throughout the tilting process, whereby the forces between the cab tilt cylinder 2 and the cab 4 remain relatively constant.
  • the lever arm B does not shorten in the same way as in the case of the previously known tilt cylinder, the forces will be smaller, making it possible to use a cylinder with smaller dimensions.

Landscapes

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

Abstract

L'invention concerne un vérin (2) de basculement de cabine destiné à la cabine (4) d'un véhicule. L'extrémité (6) du corps (8) du vérin (2), par laquelle dépasse la tige (10) de piston dudit vérin (2), est fixée pivotante à une partie (12) relativement fixe du véhicule (14), ce qui a pour effet que le bras de levier B du vérin (2) reste relativement constant par rapport au point de basculement (20) de la cabine (4) pendant tout le processus de basculement.
PCT/SE2005/000132 2004-02-18 2005-02-02 Verin de basculement de cabine WO2005080181A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112005000282T DE112005000282T5 (de) 2004-02-18 2005-02-02 Kabinenneigezylinder
BRPI0506570-4A BRPI0506570A (pt) 2004-02-18 2005-02-02 cilindro para inclinação de cabine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0400446-1 2004-02-18
SE0400446A SE0400446L (sv) 2004-02-18 2004-02-18 Hyttippcylinder

Publications (1)

Publication Number Publication Date
WO2005080181A1 true WO2005080181A1 (fr) 2005-09-01

Family

ID=31989612

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2005/000132 WO2005080181A1 (fr) 2004-02-18 2005-02-02 Verin de basculement de cabine

Country Status (4)

Country Link
BR (1) BRPI0506570A (fr)
DE (1) DE112005000282T5 (fr)
SE (1) SE0400446L (fr)
WO (1) WO2005080181A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017044041A (ja) * 2015-08-28 2017-03-02 コベルコ建機株式会社 作業機械

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642316A (en) * 1969-03-05 1972-02-15 Daimler Benz Ag Pivoted cab with lost-motion tilting mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642316A (en) * 1969-03-05 1972-02-15 Daimler Benz Ag Pivoted cab with lost-motion tilting mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017044041A (ja) * 2015-08-28 2017-03-02 コベルコ建機株式会社 作業機械

Also Published As

Publication number Publication date
SE0400446D0 (sv) 2004-02-18
SE525103C2 (sv) 2004-11-30
BRPI0506570A (pt) 2007-04-10
SE0400446L (sv) 2004-11-30
DE112005000282T5 (de) 2007-01-04

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