SE525731C2

SE525731C2 - Device for raising an axle of vehicles

Info

Publication number: SE525731C2
Application number: SE0301648A
Authority: SE
Inventors: Sven Bjoerkgaard
Original assignee: Kongsberg Automotive Asa
Priority date: 2003-06-06
Filing date: 2003-06-06
Publication date: 2005-04-12
Also published as: SE0301648D0; SE0301648L; WO2004108508A1

Abstract

A device for raising an axle (5) of a vehicle having a chassis with side portions (3, 4), that have attachment portions (10, 11) for a support member (15), that runs between the side portions and has end portions that are attached to attachment portions (10,11), and a support member, that is arranged between the end portions. The axle (5) has a raising portion (8) that extends over the support member. Support member (15) comprises a first, watertight fabric section (20) that has an actuator zone (22) on the side directed toward raising portion (8), and a second, watertight fabric section (24), having a edge portion (26) that is sealingly attached with the actuator zone (22). Between the actuator zone (22) and the lifting zone (25) is defined a pressure chamber. By the introduction of the pressure fluid into the pressure chamber, lifting zone (25) is designed to be moved away from actuator zone (22) and thereby lift the axle (5).

Description

f-ryr* Fïjd 2 ~_.__v^ .t; Uppfinningen komer nedan att beskrivas närmare under hänvisning till ritningen, som visar ett utföringsexempel på anordningen enligt uppfinningen. f-ryr * Fïjd 2 ~ _.__ v ^ .t; The invention will be described in more detail below with reference to the drawing, which shows an embodiment of the device according to the invention.

Fig. 1 är en schematisk perspektivskiss över det bakre partiet av ett fordon.Fig. 1 is a schematic perspective view of the rear of a vehicle.

Fig. 2 visar ett snitt längs linjen II-II i fig. 1.Fig. 2 shows a section along the line II-II in Fig. 1.

Som framgår av figuren har ett fordon 1 ett chassi 2 som omfattar två längsgående rambalkar eller sidopartier 3,4. Under rambalkarna 3,4 är en höj- och sänkbar bakaxel 5 hos fordonet anordnad. Vid det centrala partiet av bakaxeln 5, räknat i fordonets tvärriktning, är ett uppskjutande element 6 med ett huvudsakligen vertikalt stamparti 7 fastsatt vid bakaxeln.As can be seen from the figure, a vehicle 1 has a chassis 2 which comprises two longitudinal frame beams or side portions 3,4. Under the frame beams 3,4, a height-adjustable rear axle 5 of the vehicle is arranged. At the central portion of the rear axle 5, calculated in the transverse direction of the vehicle, a projecting element 6 with a substantially vertical stem portion 7 is attached to the rear axle.

Framåt från stampartiets 7 övre del sträcker sig ett huvudsakligen horisontellt lyftparti 8. Lyftpartiet 8 kan befinna sig direkt över bakaxeln 5 eller lite framför denna.Extending forwardly from the upper part of the stem portion 7 is a substantially horizontal lifting portion 8. The lifting portion 8 can be located directly over the rear axle 5 or slightly in front of it.

På de mot varandra vända sidorna av sidopartierna 3,4 är fästpartier fastsatta vid sidan av lyftpartiet 8, vilka fästpartier företrädesvis är utförda som sig uppåt sträckande hakar 10,11, vilka är vända mot varandra. Mellan hakarna 10,11 är en långsträckt bäranordning 15 anordnad, vars ändpartier är försedda med organ som kan förbindas med fästpartierna, genom att dessa organ av ändpartierna i det visade utföringsexemplet utgöres av ögon 16,17, som är häktade på respektive hake 10,11.On the facing sides of the side portions 3,4, fastening portions are fixed next to the lifting portion 8, which fastening portions are preferably designed as upwardly extending hooks 10,11, which face each other. Between the hooks 10,11 an elongate support device 15 is arranged, the end portions of which are provided with means which can be connected to the fastening portions, in that these means of the end portions in the embodiment shown are eyes 16,17, which are hooked on the respective hook 10,11 .

Bäranordningen 15 omfattar ett första, fluidumtätt dukstycke 20, som är oelastiskt eller i det närmaste oelastiskt i sitt dukplan, d.v.s. det plan som omfattar dukens längd- och bredd- riktning, men som är böjlig omkring axlar som löper längs detta. Dukstycket 20 har ett påverkningsområde 22 direkt under lyftpartiet 8 på den sida som är vänd mot lyftpartiet.The support device 15 comprises a first, fluid-tight piece of fabric 20, which is inelastic or almost inelastic in its fabric plane, i.e. the plane which includes the length and width direction of the canvas, but which is flexible about axes running along it. The fabric piece 20 has an actuating area 22 directly below the lifting portion 8 on the side facing the lifting portion.

Vidare har bäranordningen 15 ett andra, fluidumtätt dukstycke 24, vars kantparti 26 är tätande förbundet med pâverknings- [hf-lr- :774 3 -,__q .un området 22. Innanför kantpartiet har det andra dukstycket 24 ett lyftområde 25, så att det mellan påverkningsområdet 22 och lyftområdet 25 avgränsas ett tryckrum eller -kammare.Furthermore, the support device 15 has a second, fluid-tight cloth piece 24, the edge portion 26 of which is sealingly connected to the impact area. Within the edge portion, the second cloth piece 24 has a lifting area 25, so that it between the actuating area 22 and the lifting area 25 a pressure chamber or chamber is delimited.

Det andra dukstyckets lyftområde 25 kan vara elastiskt töjbart i sitt dukplan. Alternativt kan lyftområdets 25 yta vara större än påverkningsområdets yta, varvid lyftområdet 25 kan vara bälgformat.The lifting area 25 of the second cloth piece can be elastically stretchable in its cloth plane. Alternatively, the surface of the lifting area 25 may be larger than the surface of the impact area, whereby the lifting area 25 may be bellows-shaped.

För tillförsel av ett tryckfluidum, t.ex. tryckluft, till tryckrummet, kan det i det första dukstycket 20 eller det andra dukstycket 24 vara anordnat en tillförselnippel 28 via vilken tryckrummet kan kommunicera med en tryckfluidumkälla via exempelvis en ventil (ej visad), som kan betjänas av en person.For supply of a pressure fluid, e.g. compressed air, to the pressure chamber, a supply nipple 28 can be arranged in the first cloth piece 20 or the second cloth piece 24 via which the pressure chamber can communicate with a source of pressure fluid via, for example, a valve (not shown), which can be operated by one person.

Vid betjäning av ventilen och tillförsel av ett tryckfluidum till tryckrumet kan lyftområdet 25 röra sig bort från påverk- ningsområdet 22. När lyftområdet 25 har rört sig så långt att det kommer till anliggning mot lyftpartiet 8 kan lyftområdet 25 vid en fortsatt tillförsel av tryckluft således lyfta lyft- partiet 8 och därmed bakaxeln 5.When operating the valve and supplying a pressure fluid to the pressure chamber, the lifting area 25 can move away from the actuating area 22. When the lifting area 25 has moved so far that it comes into contact with the lifting portion 8, the lifting area 25 can thus lift with a continued supply of compressed air. the lifting portion 8 and thus the rear axle 5.

I det fall bakaxeln 5 är av den typ vars position i förhållande till chassit 2 fastlägges av ett V-stag 30 (fig. 1), som löper från sidopartierna 3,4 till bakaxeln 5, kan lyftpartiet 8 vara utbildat av det parti av V-staget 30 som befinner sig nära bakaxeln 5.In case the rear axle 5 is of the type whose position relative to the chassis 2 is determined by a V-strut 30 (Fig. 1), which runs from the side portions 3,4 to the rear axle 5, the lifting portion 8 can be formed by the portion of V the strut 30 located near the rear axle 5.

Dukstyckena 20,24 kan vara inbördes förbundna genom limning, vulkanisering eller liknande. Alternativt kan de vara inbördes förbundna via flänsar (icke visade), som är fästa till varandra med hjälp av skruvar eller liknande. Även om anordningen enligt uppfinningen ovan har beskrivits i samband med en bakaxel inses det att den även kan utnyttjas i samband med en framaxel hos ett fordon med flera framaxlar.The fabric pieces 20,24 can be interconnected by gluing, vulcanization or the like. Alternatively, they may be interconnected via flanges (not shown), which are attached to each other by means of screws or the like. Although the device according to the invention has been described above in connection with a rear axle, it is understood that it can also be used in connection with a front axle of a vehicle with several front axles.

Vidare är det ovan angivet att bäranordningen 15 har ett öga 4 Q ,_ _; 16,17 vid vart och ett av sina ändpartier, men det inses att man här kan utnyttja fler än ett öga. För säkerställning av förbindelsen mellan varje öga och den tillhörande haken kan haken ha en spärranordning, exempelvis i likhet med en karbin- hake.Furthermore, it is stated above that the carrying device 15 has an eye 40; 16,17 at each of its end portions, but it is understood that one can utilize more than one eye here. To ensure the connection between each eye and the associated hook, the hook can have a locking device, for example similar to a carabiner.

Claims

5 \ _ ~ .I J Patent Claims

A device for raising an axle of a vehicle with a chassis, the chassis (2) of the vehicle (1) having side portions (3,4) having mounting portions (10, 11) for a support device (15), which runs in the transverse direction of the vehicle between the side portions and having opposite end portions, which are connected to the fastening portions, and a support portion, which is arranged between the end portions, a lifting portion (8) being connected to the axle (5), which runs over the support portion, and one of supported actuating fluid actuating device, which has a movable portion adapted to support the lifting portion (8) and to lift the shaft during operation of the actuating device, characterized in that the supporting device comprises - a first, fluid-tight cloth piece (20), which is almost inelastic in its fabric plane, but which is flexible about axes running along it, and which directly below the lifting portion (8) has an impact area (22) on the side facing the lifting portion (8), - a second fluid-tight cloth piece (24) , whose edge portion (26) is tightly connected to the impact area (22) and has a lifting area (25) located inside the edge portion (26), so that a pressure space is delimited between the impact area (22) and the lifting area (25), - the lifting area (25) ) when supplying a pressure fluid to the pressure chamber is arranged to move away from the actuating area (22) and thus lift the lifting portion (8) and thus the shaft.

Device according to Claim 1, characterized in that the lifting area (25) of the second section of the fabric piece (24) is elastically extensible in its fabric plane. r 'Ps C f? I 6 rn_ \ 1 ”4 w l

Device according to Claim 1, characterized in that the surface of the lifting area (25) is larger than the surface of the impact area (22), the lifting area (25) being bellows-shaped.

Device according to one of the preceding claims, characterized in that each of the fastening portions comprises at least one hook (10, 11), on which the respective eye (16, 17) of the first piece of cloth can be hooked.

Device according to one of the preceding claims, characterized in that the lifting portion is a portion of a V-strut (30), via which the shaft (5) is connected to the chassis (2).

Device according to one of the preceding claims, characterized in that the cloth pieces (20, 24) are interconnected by vulcanization, gluing or the like. www-vw. . ~ ...- .. »~ ......_..._.__....___. ... ...HRS . _