WO1989003774A1 - Ameliorations apportees a des vehicules de transport de charges - Google Patents

Ameliorations apportees a des vehicules de transport de charges Download PDF

Info

Publication number
WO1989003774A1
WO1989003774A1 PCT/SE1988/000554 SE8800554W WO8903774A1 WO 1989003774 A1 WO1989003774 A1 WO 1989003774A1 SE 8800554 W SE8800554 W SE 8800554W WO 8903774 A1 WO8903774 A1 WO 8903774A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
fulcrum
load
running
axle
Prior art date
Application number
PCT/SE1988/000554
Other languages
English (en)
Inventor
Stig Roland Sterner
Original Assignee
Parator Ab
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
Priority claimed from SE8704119A external-priority patent/SE459243B/sv
Priority claimed from SE8800030A external-priority patent/SE459962B/sv
Application filed by Parator Ab filed Critical Parator Ab
Publication of WO1989003774A1 publication Critical patent/WO1989003774A1/fr
Priority to FI902007A priority Critical patent/FI902007A0/fi

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027—Mechanical springs regulated by fluid means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels

Definitions

  • the present invention relates to a device in load-carrying vehicles with a so-called bogie lift, which incorporates a sprung drive shaft which carries driving wheels, and a running axle on which running wheels are suspended, the running axle being arranged, by means of a first lever operating between the running axle and one end of the spring assembly of each respective driving wheel and rotatably disposed by means of an operating device in relation to the chassis of the vehicle, to be raised and lowered by means of a second lever in relation to the frame of the vehicle in order thereby to move the running wheels of the running axle away from and into contact with the surface on which the vehicle rolls, in response to the axle pressure which is intended to be exerted on the surface, the movable, free end of' the second lever being arranged to actuate the first lever at a distance from the fulcrum of the second lever.
  • Such regulation of the axle pressure may be effected automatically; see for example Swedish patents Nos. 8104540-3 and 8204169-0, or manually by the driver of the vehicle.
  • Such prior-art automatic systems pay little or no heed to the loading to which the bogie lift system proper is subjected, regulation instead taking place in response to the wanted axle pressure on the surface on which the load-carrying vehicle travels.
  • an experienced and skilful driver can take into account not only the weight and payload of the vehicle but also the load to which the bogie lift is exposed.
  • An inexperienced driver in contrast, runs the risk of overloading and damaging the bogie lift in manual operation thereof.
  • the primary object of the present invention is to obviate the above-outlined drawback inherent in both automatic and manual systems for operating bogie lifts so that the risk of overloading and damaging to the bogie lift will be avoided or eliminated.
  • Fig. 1 shows a highly simplified embodiment of the spring assembly of a driving wheel with associated parts
  • Fig. 2 shows by way of definition different engagement positions for the embodiment according to Fig. 1;
  • FIG. 3 shows how the embodiment according to Figs. 1 and 2 is modified by a second lever of different design; and Fig. 4 schematically illustrates the- different engagement positions of this modified second lever.
  • the accompanying drawings only show one side of the rear region of a load-carrying vehicle and that the other side is of essentially identical design.
  • the frame of a load-carrying vehicle for example a truck, is designated by reference numeral
  • One end of the spring assembly of the driving wheel is pivotally secured in the frame 4 (not shown on the drawings), and its other, rear end is pivotally anchored by means of a first lever 3, in a pivot point 9 in the frame 4, as intimated in Fig.
  • the vehicle is fitted with a running axle 2 which is rigidly connected to the first lever 3.
  • the running axle 2 carries two running wheels (not shown) which, together with the driving wheels
  • the driving wheels are resiliently anchored in the frame 4 by means of the spring assembly 1, 1' (not shown), respectively.
  • the first lever 3 at its front end seen in the direction of the vehicle, is movably connected to the rear end of the spring package 1 and is pivotally anchored in the pivot point
  • Fig. 1 shows the position assumed by the device according to the present invention when both the driving wheels and the running wheels run on the surface on which the vehicle is travelling, i.e. illustrates the bogie in the engaged state.
  • an operating device 8 is provided in the form of, for instance, a cylinder with a movable piston, which, in the activated state, rotates a rotatable shaft 10 disposed in the frame 4, the shaft 10 in its turn rotating a second lever 5 into cooperation with the upper side of the first lever 3, as particularly illustrated in Fig.2.
  • this shaft 10 naturally runs across to the other side of the vehicle where a corresponding second lever 5', a corresponding first lever 3' etc. (not shown) are disposed.
  • the second lever 5 is provided with two projections 5a, 5b which are disposed at different distances from the fulcrum of the shaft 10 with the lower roller 6, seen in Fig. 1, rotatably disposed at a shorter distance from this fulcrum than the rotary anchorage of -the roller 7.
  • the above-mentioned limit switch may thereafter be bypassed and full stroke of the piston of the cylinder 8 obtained, in which event the additional roller 7 enters into engagement with the first lever 3 and the running axle 2 is raised to full height, this situation corresponding to the lowermost position illustrated in Fig. 2 by broken lines and corresponding to fully raised running wheels.
  • Whether the limit switch can be opened or not is determined automatically in that the load-sensing switch (not shown) disposed at the rear axle governs the limit switch, or, if no such arrangement is provided on the vehicle, the limit switch is provided with load-sensing equipment of, for instance, the same type as is employed as a load-sensing valve in the brake system of commercial vehicles.
  • Fig. 3 illustrates a variation of the second lever 5 and Fig. 4 illustrates the different engagement positions of this second lever.
  • rollers 6 and 7 according to the embodiment of Figs. 1 and 2 have been intimated by broken lines so as to illustrate that these rollers 6 and 7 may, from the functional viewpoint, be wholly replaced by a second lever according to Figs.
  • the above-mentioned second lever 5 according to Fig. 3 is - as is particularly apparent from Fig. 4 - of integral design with configurated surfaces, marked with reference numerals 5a-5j, these being disposed along a curve or line of curvature at different distances from the fulcrum of the second lever 5, namely the shaft
  • ⁇ 5a-5j have been marked in Fig. 4 for purposes of clarity.
  • the second lever 5 Since the second lever 5, on turning thereof by means of the operating device 8 according to Fig. 3 about the shaft 10, makes contact, by means of the various surfaces marked 5a-5j in Fig. 4, with different parts of the upper side of the first lever 3, the contact point or contact line between the second lever 5 and the upper side of the first lever 3 is changed without generating any appreciable sliding friction between them, i.e. the second lever 5 will "roll" in relation to the upper side of the first lever 3 although no rollers are provided in this particular case.
  • the precondition enabling this to take place is that the length, configuration and fulcrum - the shaft 10 - of the second lever 5 are adapted to the configuration of the upper side of the first lever 3 and to its fulcrum - the pivotal point 9 - or that, conversely, mutual adaptation is effected of the relevant contact surfaces and pivotal points to this end, namely that the second lever 5 "rolls" in relation to the first lever 3.
  • the present invention should not be considered as restricted to that described above and shown on the drawings, many modifications being conceivable without departing from the spirit and scope of the appended Claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Handcart (AREA)

Abstract

Le dispositif décrit, qui est utilisé dans des véhicules de transport de charges pourvus d'un élévateur à bogie, comprend un arbre moteur à ressorts (1) équipé de roues d'entraînement et un essieu porteur (2) sur lequel sont suspendues des roues de roulement. Grâce à un premier levier (3) fonctionnant entre l'essieu porteur (2) et l'une des extrémités de l'ensemble à ressorts (1) de chaque roue d'entraînement respective et disposé de façon à pouvoir tourner sous l'action d'un dispositif d'actionnement (8) par rapport au châssis (4) du véhicule, on peut soulever et abaisser l'essieu porteur (2), au moyen d'un second levier (5) par rapport au châssis (4) du véhicule, amenant ainsi les roues de roulement de l'essieu porteur (2) hors contact et en contact avec la surface sur laquelle roule le véhicule, en réponse à la pression de l'essieu qui est destinée à s'exercer sur la surface. L'extrémité mobile libre du second levier (5) est destinée à actionner le premier levier (3) sur une certaine distance à partir du point de pivot du second levier (5). A son extrémité mobile, le second levier (5) présente plusieurs surfaces (5a-5j; 6, 7) placées à des distances différentes du point de pivot (10) du second levier (5). Les surfaces (5a-5j; 6,7) sont destinées à tourner sous l'action du dispositif d'actionnement (8) autour du point de pivot (10) pour permettre un contact de transfert de charge avec différentes parties du premier levier (3).
PCT/SE1988/000554 1987-10-22 1988-10-21 Ameliorations apportees a des vehicules de transport de charges WO1989003774A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI902007A FI902007A0 (fi) 1987-10-22 1990-04-20 Foerbaettring vid lastfordon.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8704119-0 1987-10-22
SE8704119A SE459243B (sv) 1987-10-22 1987-10-22 Anordning vid lastfordon med saa kallad boggilyft
SE8800030-2 1988-01-08
SE8800030A SE459962B (sv) 1988-01-08 1988-01-08 Anordning vid lastfordon

Publications (1)

Publication Number Publication Date
WO1989003774A1 true WO1989003774A1 (fr) 1989-05-05

Family

ID=26659991

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1988/000554 WO1989003774A1 (fr) 1987-10-22 1988-10-21 Ameliorations apportees a des vehicules de transport de charges

Country Status (4)

Country Link
EP (1) EP0390792A1 (fr)
AU (1) AU2601488A (fr)
FI (1) FI902007A0 (fr)
WO (1) WO1989003774A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481197A2 (fr) * 1990-10-13 1992-04-22 Bergische Achsenfabrik Fr. Kotz & Söhne Essieu à ressorts pneumatiques
CN111546833A (zh) * 2020-05-28 2020-08-18 沈晶星 自适应载重车辆、方法、设备及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE201306C1 (fr) * 1965-01-01
SE303691B (fr) * 1964-11-16 1968-09-02 Bil & Truck Oernskoeldsvik Ab
SE349526B (fr) * 1971-02-02 1972-10-02 Zetterbergs Mek Verkstad Ab

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE201306C1 (fr) * 1965-01-01
SE303691B (fr) * 1964-11-16 1968-09-02 Bil & Truck Oernskoeldsvik Ab
SE349526B (fr) * 1971-02-02 1972-10-02 Zetterbergs Mek Verkstad Ab

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481197A2 (fr) * 1990-10-13 1992-04-22 Bergische Achsenfabrik Fr. Kotz & Söhne Essieu à ressorts pneumatiques
EP0481197A3 (en) * 1990-10-13 1992-12-02 Bergische Achsenfabrik Fr. Kotz & Soehne Axle with pneumatic springs
CN111546833A (zh) * 2020-05-28 2020-08-18 沈晶星 自适应载重车辆、方法、设备及存储介质
CN111546833B (zh) * 2020-05-28 2024-03-12 上海西井科技股份有限公司 自适应载重车辆、方法、设备及存储介质

Also Published As

Publication number Publication date
FI902007A0 (fi) 1990-04-20
AU2601488A (en) 1989-05-23
EP0390792A1 (fr) 1990-10-10

Similar Documents

Publication Publication Date Title
KR950017709A (ko) 승객 컨베이어 시스템용 비상 브레이크 조립체
US4955450A (en) Lifting device for motor vehicles
US3486587A (en) Hand truck brake
US4516507A (en) Mechanical stop mechanism for a tilt system in a railway car
WO1989003774A1 (fr) Ameliorations apportees a des vehicules de transport de charges
CN105197717B (zh) 设有速度监控部件的单制动压板双向自动防溜车限速***
CA2179461A1 (fr) Galet lateral pour roues de pont roulant a portique
SU810072A3 (ru) Передаточный механизм дл тормозногопРиВОдА ТРАНСпОРТНОгО СРЕдСТВА
GB2293364A (en) Industrial Lift Truck
CA2070954A1 (fr) Frein de securite pour vehicules de transport de marchandises
US4258831A (en) Brake mechanism for a hand operated lift truck
CN105236234B (zh) 减行程双向自动防溜车限速***
EP0352380A1 (fr) Roue à pivot
US3525423A (en) Mechanical and hydraulic brake system
JP7061248B2 (ja) ブレーキ機構
JPH07228227A (ja) フォークリフトのデッドマンブレーキ装置
JP3570608B2 (ja) リフトトラックのブレーキ装置
US2523057A (en) Load responsive brake
KR200457820Y1 (ko) 주차 브레이크를 갖춘 트럭의 보조 서스펜션 장치
CN112848796A (zh) 一种滚轮控制装置
CN2132029Y (zh) 用于汽车的手制动器
KR910005657Y1 (ko) 전동지게차의 제동장치
US2642960A (en) Brake safety mechanism
JPS6121329Y2 (fr)
JPH0127444Y2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU DK FI JP NO SE US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1988909398

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 902007

Country of ref document: FI

WWP Wipo information: published in national office

Ref document number: 1988909398

Country of ref document: EP

WWR Wipo information: refused in national office

Ref document number: 1988909398

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1988909398

Country of ref document: EP