DE102006043987A1 - Vehicle for transportation of heavy loads, has loading platform carried by longitudinal chassis beam and chassis with continuous axis that is lowered by crank in central area - Google Patents

Abstract

The vehicle (1) has a loading platform (2), which is carried by a longitudinal chassis beam, and a chassis that has a continuous axis, at whose end a wheel is supported. The continuous axis is formed as cap form in the direction of motion, in which a crank has the center on both sides. The continuous axis is lowered by the crank in the central area and, particularly runs below the longitudinal chassis beam. The spring element is attached to the continuous axis in the center, lowered area of the axis and also within the crank.

Description

I. Field of application

The The invention relates to a vehicle for transporting heavy loads, typically a semi-trailer.

II. Technical background

in the Area behind the loading area is the rear landing gear with at least one axle, the cargo area until the area above the chassis can go through or also have a paragraph viewed in the side view can, thus the area of the loading area in front of the landing gear particularly is deeply arranged.

Independently of The aim is to increase the height of the loading area in the area the chassis as possible to lower the for Payload available standing loading height to optimize.

One Another optimization goal may be to do without enlarging the loading height and thus the height the loading area to increase their capacity.

These Resilience depends primary from the profile height the used side member of the Frame from and on the wall thickness, the load capacity with increasing wall thickness and increasing profile height increases.

at unchanged Positioning the height of the load area increases the load capacity, if - despite the same wall thickness - the height of the profile of the longitudinal member are increased can.

In both cases However, in the transverse direction continuous, straight axle body an obstacle and a height limit that is undesirable is.

In In the past, this has already been circumvented by replacing one in the transverse direction, straight axis on both sides separate stub axle were arranged on the chassis. However, this solution is regarding the driving stability less positive and above In addition, constructively much more complex and therefore more expensive.

III. Presentation of the invention

a) Technical task

It is therefore the object of the invention to provide a vehicle that avoids the disadvantages of the prior art and yet technically simple and cost-effective is to produce.

b) solution the task

These The object is solved by the features of claim 1. advantageous embodiments emerge from the dependent claims.

By the use of a cranked continuous viewed in the direction of travel Axis become the stability advantages a continuous axle body used, by the bend in the area of the side members of the However, this framework is far less limiting in terms of the height the loading area or height the side member.

By doing the axis hat-shaped under the side member cranked is, runs no part of the axle above the longitudinal member, so that the cargo bed directly placed on the side members can be.

By doing the lowered middle part of the axis body is preferably wider is as the chassis in the lower area and at least the spring / damper elements laterally next to the side rails in the lowered attack central area of the axle body, stands one size overall length for the Spring / damper elements namely the distance from the lowered central area of the axle body to to the upper receptacle of the spring / damper elements under the bed, to disposal.

By a not right-angled but only obliquely bent the axle body the axis is particularly stable against twisting, without the inclination so strong is that for this too much space is lost in the transverse direction.

c) embodiments

embodiments according to the invention in the following example closer described. Show it:

1 : A semi-trailer as a low loader in side view, and

2 : a half-view of an axle of the trailer.

1 shows a side view of a semi-trailer vehicle whose trailer is a lower compared to the fifth wheel loading area 2 has.

The height of the loading area 2 above the ground should be as low as possible, or the available height for the vertical side member 3 The framework should be as large as possible in order to cope with a high payload of the semitrailer.

One of the rear axles is as a field (ie only one side of the vehicle center), viewed in the direction of travel, in 2 shown.

The stability of the loading area 2 is primarily of the longitudinal direction 10 continuous side rails 3a , b applied vertically standing between a top and bottom plate 12a , b and crossbeams, not shown, are integrated, and also the outer circumferential outer frame via transverse members 13 wear.

Under the loading area 2 are also the wheels 6 , which are each designed as a twin tire and on the hub 14 sit, rotatable on the ends of the in the transverse direction 11 continuous axis 5 which is usually a forged axle body made of solid steel.

The hub 14 is steerable on the axle in this case 5 fastened, wherein the steering angle over a z. B. driven from the front axle forced steering.

The axle body 5 is - viewed in the direction of travel 10 - with a bend 7 equipped, which causes the mid-range 8th of the axle body 5 offset parallel downwards opposite to the likewise horizontally outwardly projecting ends of the axle body.

Because the axle body 5 under the side rails 3a , B passes, this creates a greater vertical space for the side members 3a , b between the loading area 2 and the middle area 8th the axis 5 , what with the same wall thickness of the longitudinal member 3 means a higher load capacity in the vertical direction.

The offset of the axis 5 is not perpendicular to the central region and the horizontal, but obliquely, whereby the axle body against Verwindun conditions is particularly stable without the inclination is so strong that too much space is lost in the transverse direction.

Because the middle area 8th should be wider than the distance between the side members 3a , b and outside next to the side rails 3a , b still survive so far that in the suppressed lowered central area 8th also the spring and or damper elements 9 can be supported on the axle body, so that they have a relatively large length of the lowered central area 8th up to the loading area 2 can have.

1

vehicle

2

load area

3a, b

longitudinal beams

4

landing gear

5

axis

6

wheel

7

cranking

8th

the central region

9

spring element

10

direction of travel

11

transversely

12a, b

Top / bottom panel

13

outer frame

14

hub

Claims (6)

Vehicle ( 1 ) for the transport of heavy loads with a loading area ( 2 ), of at least one longitudinal beam ( 3a , b) and at least one landing gear ( 4 ), which in each case at least one continuous axis ( 5 ), at whose ends in each case at least one wheel ( 6 ) is mounted, characterized in that in the direction of travel ( 10 ) considers the axis ( 5 ) hat-shaped, by both sides of the middle of each a crank ( 7 ) having. Vehicle according to claim 1, characterized in that the axle ( 5 ) by means of the cranks ( 7 ) in the middle area ( 8th ) is lowered and in particular below the longitudinal members ( 3a , b) runs. Vehicle according to one of the preceding claims, characterized in that the spring elements ( 9 ) on the axis ( 5 ) in the middle, lowered area ( 8th ) of the axis ( 5 ), ie within the cranks. Vehicle according to one of the preceding claims, characterized in that the offset ( 7 ) at an angle of 80 °, preferably 75 °, to the transverse direction, the course direction of the axle body is. Vehicle according to one of the preceding claims, characterized in that the axles ( 5 ) are steerable axles and the handlebars ( 12 ) for articulating the wheels ( 6 ) in the height range between the lower edge of the Länlgsträgers ( 3a , b) and the low mid-range ( 8th ) of the axis ( 5 ) are arranged. Vehicle according to one of the preceding claims, characterized in that the offset ( 7 ) is arranged as far outside as possible and the low-lying central region ( 8th ) of the axis ( 7 ) is wider than the width of the longitudinal beams ( 3a , b) ge formed frame of the vehicle in the lowest area.