DE102012023716A1 - Cargo space cover device for vehicle, has top cover unit which is displaceable relative to side support device and left and right cover units, and positioning device for positioning cover unit in air resistance-reduced position - Google Patents

Abstract

The cover device (10) has a cover unit (11) for the covering the cargo space of the vehicle (1). The cover unit is provided with a top cover unit (11.1), left cover unit (11.3) and right cover unit. A positioning device (14) is provided for positioning the cover unit in air resistance-reduced position. The top cover unit is displaceable relative to the side support device (12) and left and right cover units.

Description

The invention relates to a luggage compartment covering device, in particular with a covering device, a side carrier and a positioning device. Moreover, the invention relates to a vehicle.

For transporting cargo by motor vehicle, be it on the road or rail or the waterway, the cargo is usually arranged in a hold, which is connected by a tarpaulin or other z. B. from one or more rigid walls covering device is sealed off from the environment. In this case, a support frame for holding and positioning the tarp or covering is usually formed by side and / or cross member, and the support frame is usually cubic, in particular cuboid shaped in terms of the largest possible loading volume. This geometry is aerodynamically disadvantageous. Not only in the rear area of the vehicle form with such a geometry strong turbulence.

The DE 10 2010 027 716 A1 1 shows a commercial vehicle with a structure constructed from different partial regions, which can be adjusted between at least two positions for the purpose of improved aerodynamics, wherein the partial regions are each adjustable in height and can be arranged at different heights, in particular lower, with respect to the length of the commercial vehicle. the farther back the subregions are provided. As a result, in an incompletely loaded state of the commercial vehicle, an aerodynamically more advantageous geometry can be set.

The DE 196 02 602 A1 shows on a front, sidewalls and / or roof or rear corners of a vehicle aerodynamically acting devices which are formed in the rear of the vehicle in the form of additionally provided on the vehicle spoilers, and via which a kinked geometry of an aerodynamically effective outer geometry of the vehicle adjustable is, wherein in the rear area to reduce the air resistance at the devices air can be blown through air outlet openings.

The DE 60 2004 013 141 T2 shows a device for low-drag rejuvenation of a vehicle rear, in particular additional streamlined extensions for adjusting a rounded trailing edge on the rear of the vehicle, the device being adjustable via a method for controlling the air resistance via an active boundary layer control. The active boundary layer control is achieved by targeted, switchable blowing out of air in the region of the boundary layer at the trailing edge.

The object is to provide a device for covering a cargo space of a vehicle, which can be adjusted in a simple manner so that the device and thus the vehicle has a low air resistance.

This object is achieved by a luggage compartment covering device according to claim 1. Advantageous developments of the invention are the subject of the dependent claims.

• – eine Abdeckeinrichtung zum Abdecken eines Laderaums des Fahrzeugs, wobei die Abdeckeinrichtung eine oberseitige Abdeckeinheit sowie eine linke Abdeckeinheit und eine rechte Abdeckeinheit aufweist;
• – eine Seitenträgereinrichtung;
• – eine Positioniereinrichtung zum Einstellen der luftwiderstandsreduzierten Anordnung.

rstandsreduzierten Anordnung einstellbar ist, weist auf:A load compartment cover according to the invention, which in at least one air wrecker

• A covering device for covering a loading space of the vehicle, the covering device having an upper-side covering unit as well as a left-hand covering unit and a right-hand covering unit;
• A side support device;
• - A positioning for adjusting the air resistance reduced arrangement.

rensionsreduzierten arrangement is adjustable, has:

In order to limit a loading volume so that the air resistance is reduced and in particular no strong swirls occur behind the vehicle, the invention proposes that the loading space covering device is designed for positioning the covering device in an air-resistance reduced position, wherein the top-side covering unit relative to the side support device and at least one of the left and right cover units is displaceable.

Most Laderaumabdeckvorrichtungen are designed cuboid in terms of a maximum cargo volume. By displacing the upper-side cover unit, the cuboid shape can be abandoned and the Ladaumaumabdeckvorrichtung be given a tapering with respect to a vertical y-direction shape.

By a storage of the top cover unit, which is decoupled from the storage of the left and right cover units, a drag-reduced arrangement can be easily adjusted. Already the lowering of a rear edge of the top-side cover unit in the rear region of the cargo compartment covering device can be sufficient to achieve an arrangement which is reduced in air resistance compared to a cargo space covering device in a rigid cuboid shape.

By rejuvenating the luggage compartment covering device in the rear region of the vehicle, turbulences in the air flow can be effectively reduced, in particular, when air flows can not flow unhindered into a negative pressure area. This can according to the invention by the left and right cover units are ensured that do not need to be relocated. The taper is thus preferably provided only in the vertical direction. In this way, on the one hand a simple adjustment can be ensured, on the other hand air vortex can be effectively avoided without additional spoiler or Strakes elements. This also applies to the case that the top-side cover unit is lowered particularly far down, because this increases at the same time a top surface cover unit superior lateral surface, which avoids the formation of vertebrae.

According to the invention, individual sections of the covering device, in particular different top-side covering units of the covering device, can be individually adjusted. Other components of the cover need not necessarily be relocated. Any streamlined extensions or additional components are no longer required.

In other words, the upper-side cover unit is displaceable relative to the side support device on the side support device, which can be arranged stationary in relation to the loading space. At the same time, at least one of the left and right (lateral) covering units may also be fixed with respect to the loading space, and the top-side covering unit may also be displaced relative to the lateral covering units.

The side support device preferably has at least one left and at least one right side support unit, which are firmly connected to a base support of the vehicle when the cover device is lowered on the left and right sides of the vehicle viewed in the direction of travel. The side support units are at least partially free-standing when the top-side cover unit has moved at least partially downwards on the side supports. Then the side support tower over the top cover unit. Between the side rails may be provided on the sides of the vehicle in each case a left or right lateral cover unit. The left or right cover unit is preferably at least partially free-standing when the top-side cover unit has moved at least partially downwards on the side supports. Then, the lateral cover units project beyond the top cover unit.

The top cover unit, which is towered over by side supports or lateral cover units, can prevent or at least reduce vortex formation. The lateral cover units can act in the manner of strakes by preventing air from flowing laterally into the area directly behind the vehicle. This easily causes a lower air resistance.

According to one embodiment, the positioning device engages the top cover unit and / or a cross member device. By a direct coupling of the positioning with the top cover unit a simple basic structure can be ensured. Optionally, the positioning can be coupled via the cross member means with the top cover unit, which can bring a greater accuracy in the positioning of the top cover unit with it.

According to one embodiment, the positioning device positioning means, which are arranged on the side support means. In this way, a stable mounting of the top-side cover unit on the side support means, regardless of the position of the top cover unit. Preferably, the cross member device is mounted on the positioning means on the side support means. The positioning means may be formed as a sliding shoe, which is mounted in a guide rail.

According to one embodiment, the side support device has an air flow-directing geometry and / or has at least one side support unit, which has a rounded, in particular elliptical or part-circular profile in cross-section. In this way it can be ensured that when the top cover unit is lowered, no great air resistance is created on the side support unit.

Preferably, the side support means is formed by a plurality of successively arranged in the direction of travel side support units, each having a rounded profile on the side facing the loading space side. This makes it possible to ensure that an air stream can flow along the inside of the side support device or lateral cover units extending in an x-y plane without strong turbulences on the inside of the side support device pointing to the cargo compartment. More preferably, the aft end of the farthest aft, so viewed in the direction of travel rear side support unit in an x-z plane formed acute pointed towards the rear, so that an air flow without strong turbulence at this end, so the edge formed by tearing can.

According to one embodiment, the cross member has a cross member, which is fixed with respect to the loading space and independently of the top cover unit can be arranged, in particular mounted on the side support means.

A fixed arranged cross member in conjunction with a movable or movable top cover unit provides, in addition to its stabilizing the structure function, the advantage that can be taken on the cross member influence on the air flow, which flows above the top cover unit on the vehicle. As a result, the air resistance can be further reduced. In particular, air turbulence can be reduced or avoided. Due to the possibility of selectively displacing a cross member with the corresponding cover unit in height, it is also possible to set a more variable geometry of the cover device, in particular a roof shape. It can be more targeted to react to certain flow conditions.

According to one embodiment, the cross member device has an air flow directing geometry and / or has at least one cross member, which has a rounded, in particular elliptical or part-circular profile in cross section. In this way it can be ensured that, when the top-side cover unit is lowered, no great air resistance is created at the cross-member device. At the same time, the air flow can be influenced via the crossmember device.

According to a variant of the cross member is formed in cross-section in an x-y plane as a kind of airfoil, in particular with a bottom, which is more curved than a top, so according to an inverted airfoil. In this way, an air flow between the cross member and the top cover unit can be accelerated in the area in which it is usually braked by the top cover unit. As a result, the air flow is not slowed down as much, and air swirls are less pronounced. This reduces air resistance.

According to one exemplary embodiment, the covering device has a plurality of top-side covering units, which can each be positioned on the side support device, in particular on at least two side support units, in their height with respect to the loading space and relative to the left and right covering units. As a result, the load compartment cover device can be adapted to a load in a flexible manner, and the load compartment cover device need only be as bulky as required in the individual case for the load to be transported. Also, a taper can be done gradually in different thickness, so that even with a strong taper no large angle between adjacent upper-side Abdeckeinheiten arise.

According to one embodiment, the cover is at least partially formed as a tarpaulin. Preferably, the rear side of the cover, so a back or front cover unit of the cover, designed as a tarpaulin. As a result, the cross member can be moved to the rearmost side panels in a simple manner, without the cover, so the back cover unit, there stowed separately or folded, because a tarp can be easily compressed and, if necessary, be folded together.

The core of the invention is that the top-side cover unit is displaced relative to a side support device in order to set a drag-reduced arrangement in a comparatively simple or flexible manner, as permitted by the required loading volume.

The invention can be used in vehicles with differently designed structures. In question are trucks with a structure in which the loading area is covered or enclosed by a (roll-up or slidable) tarpaulin, as well as truck with a closed structure (also referred to as a box body), which has fixed and possibly self-supporting walls. In such a structure, the side walls may form a side support means according to the invention, wherein the top cover unit, d. H. z. B. at least a portion of the roof of the structure, relative to the side walls is displaceable. The sidewalls thus remain when lowering the roof to achieve the desired reduction in air resistance.

With reference to the drawing figures explained below, embodiments of the invention will be described.

Show it:

1 FIG. 2 shows a side view of a vehicle with a load compartment cover device according to an exemplary embodiment of the invention, wherein a cover device is arranged at least partially in a lowered state;

2 FIG. 2: a side view of the vehicle with the load compartment covering device according to the exemplary embodiment of FIG 1 wherein a cover unit of the cover device is arranged at least in a further lowered state than another cover unit of the cover device;

3 FIG. 4 is a plan view of the vehicle with the luggage compartment covering device according to the embodiment of FIG 1 and 2 ; and

4 FIG. 2: a side view of a vehicle with a load compartment cover device according to FIG Another embodiment of the invention, wherein a cover is at least partially disposed in a lowered state and the cover is simultaneously decoupled from a cross member at least partially.

In the 1 is a vehicle 1 shown on which a Ladebaumabdeckvorrichtung 10 with a covering device 11 , a side support device 12 , a cross-member device 13 as well as a positioning device 14 are provided. The cargo compartment cover 10 is on a basic carrier 15 arranged, which at the same time a loading dock of the vehicle 1 can form. On the ground support 15 is load 40 arranged.

The cover 11 has a top cover unit 11.1 , a cover unit left in the direction of travel 11.3 , a right in the direction of travel cover unit 11.4 and a rear cover unit 11.5 on, wherein the top cover unit 11.1 is composed of individual sections, namely one of a bow of the vehicle 1 seen first top cover unit 11.1a a second top cover unit 11.1b and a third top cover unit 11.1c , These three top cover units 11.1a . 11.1b . 11.1c can be arranged relative to one another at an angle, that is to be pivoted about an axis parallel to the z-direction.

The side support device 12 has a left side support in the direction of travel 12.1 and a right side support in the direction of travel (reference numeral 12.2 in 3 ) on. The left side support 12.1 is by a seen in the direction of travel front side support unit 12.1a , a middle side support unit 12.1b and a rear side support unit 12.1c educated. The corresponding right side support is also formed by a front side support unit, a middle side support unit and a rear side support unit (reference numerals 12.2a . 12.2b . 12.2c in 3 ).

The crossbar device 13 has a seen in the direction of travel first, front cross member 13.1 , a second, middle cross member 13.2 and a third, rear cross member 13.3 on. The individual crossbeams are as well as in the 2 and 4 cut for better understanding.

The positioning device 14 has positioning means on each of the side support units 14.1 on, the positioning means 14.1 can be designed as a guide rail and the positioning 14 optionally also at least on some of the side support units may each have a shoe (reference numeral 14.2 in 4 ). On the side support units are position sensors 16 arranged, via which a position of the respective sliding shoes or the top cover units can be detected.

The vehicle 1 also has a sensor device 20 on which an absolutely measuring sensor unit 21 and a relatively measuring sensor unit 22 having. About the absolute measuring sensor unit 21 can a driving condition be detected, so z. B. the driving speed. About the relatively measuring sensor unit 22 can z. B. a wind are detected. About the sensor device 20 which in conjunction with a control device 30 stands, which in connection with the positioning 14 can, positioning of the top cover unit 11.1 depending on a driving condition or in addition depending on external influences such. B. a strong headwind done.

The second top cover unit 11.1b and the third top cover unit 11.1c are pivoted with respect to an xz-plane by being displaced downwards at at least one of their front or rear edges, here via the positioning means 14.1 , which are formed as guide rails, in which the cross member 13.2 . 13.3 are stored. The two cover units 11.1b . 11.1c Can handle it together with the cross members 13.2 . 13.3 be positioned. The two cover units 11.1b . 11.1c are arranged at the same angle to the xz plane.

In the 2 is a variant of the arrangement of the cover 11 shown in which the second top-side cover unit 11.1b is arranged at a smaller angle to the xz plane than the third top cover unit 11.1c , The charge 40 in the rear of the vehicle 1 leaves this deeper arrangement of the third top cover unit 11.1c to.

In the 3 is that in the 1 and 2 already shown vehicle 1 shown in plan view, in which a cross-sectional profile of the side support 12.1 and 12.2 becomes clear. In relation to the respective side wall 11.3 . 11.4 stand the individual side support units 12.1a . 12.1b . 12.1c . 12.2a . 12.2b . 12.2c slightly inward toward the hold, which does not necessarily have to be the case. Rather, the side support units also completely in the side walls 11.3 . 11.4 be integrated. Here, the protruding part is formed streamlined, in particular by a part-circular or elliptical geometry. At least the rearmost side carrier units 12.1c . 12.2c In addition, they can be tapered towards the back in a drop-shaped pattern to further improve aerodynamics.

Furthermore, air vortices W1 and W2 are indicated schematically and exaggerated. The air swirls W1 rotate about an imaginary axis that is substantially parallel to the x-direction, and the air swirls W2 rotate about an imaginary axis that is substantially parallel to the y-direction according to the recorded coordinate system. The air vortex W1 arise mainly due to a negative pressure on the top of the vehicle 1 , So a negative pressure on the top cover unit 11.1 , and the air vortex W2 arise mainly due to a negative pressure at the rear of the vehicle 1 , in particular on a rear-side cover unit 11.5 , However, the air vortices W1 and W2 can not form as much as in prior art vehicle or load compartment covers, as they pass through the lateral covering units 11.3 . 11.4 which the top cover unit 11 , override, be prevented from doing so. In other words, the air vortices, in particular the air vortices W1 around an axis parallel to the x-direction, can not already form and enlarge where the top-side cover unit drops first, but if at all at the end of the rear of the vehicle 1 behind the rear cover unit 11.5 , By a curvature of the side support units 12.1c . 12.2c inside the air vortex W2 can be counteracted. As a result, the air resistance can be greatly reduced.

In the 4 an embodiment is shown in which the top cover units 11.1a . 11.1b decoupled from the corresponding cross members 13.2 . 13.3 are relocated. In this case, air vortices W3 are indicated schematically and exaggerated. The air vortices W3 rotate about an imaginary axis, which is substantially parallel to the z-direction, according to the indicated coordinate system. The air vortices W3 can mainly due to an adhesive condition on the top cover unit of the vehicle 1 arise.

In each formed as a guide rail positioning 14.1 is in each case a sliding shoe 14.2 stored, by means of which the top cover unit 11.1 independent of the cross members 13.1 . 13.2 . 13.3 on the side support device 12 is relocatable. The crossbeams 13.1 . 13.2 . 13.3 rather, as shown in a position above the top cover unit 11.1 remain and act in possibly forming air vortices W3 to the effect that the air vortices W3 are attenuated. The second cross member 13.2 can prevent the first front air vortex W3 from increasing, and also the third cross member 13.3 prevent the fourth air vortex W3, which is fourth in the x-direction, from becoming more pronounced. Rather, by the cross-sectional geometry of the cross member 13.2 . 13.3 be achieved that the air vortex W2 be weakened. For this purpose, the cross member 13.2 . 13.3 z. For example, a profile such as a wing on which the greater curvature at the bottom, or the cross member 13.2 . 13.3 are elliptical and symmetrical on top and bottom.

Therefore, the air vortices W3 can by far not form as much as in previously known vehicle or luggage compartment covers, in which the entire luggage compartment cover tapers, without lateral cover units or cross members being arranged above the top-side cover unit.

LIST OF REFERENCE NUMBERS

1

vehicle

10

cargo space

11

cover

11.1

top cover unit

11.1a

first top cover unit

11.1 b

second top cover unit

11.1c

third top cover unit

11.3

left cover unit (especially left side panel)

11.4

right cover unit (especially right side panel)

11.5

Rear cover unit (especially rear tarpaulin)

12

Side support means

12.1

left side support

12.1a

front left side carrier unit

12.1b

middle left side support unit

12.1c

rear left side carrier unit

12.2

right side support

12.2a

front right side panel unit

12.2b

middle right side support unit

12.2c

rear right side carrier unit

13

Cross-carrier device

13.1

first cross member

13.2

second cross member

13.3

third cross member

14

positioning

14.1

Positioning means, in particular guide rail

14.2

shoe

15

base support

16

position sensor

20

sensor device

21

absolutely measuring sensor unit, in particular for detecting a driving condition

22

relatively measuring sensor unit, in particular for detecting an apparent airstream

30

control device

40

load

W1

Air swirl about an axis substantially parallel to the x-direction

W2

Air swirl about an axis substantially parallel to the y-direction

W3

Air swirl about an axis substantially parallel to the z-direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102010027716 A1 [0003]
• DE 19602602 A1 [0004]
• DE 602004013141 T2 [0005]

Claims (9)

Load compartment cover device ( 10 ) for a vehicle ( 1 ), which is adjustable in at least one drag-reduced arrangement and comprises: - a covering device ( 11 ) for covering a loading space of the vehicle ( 1 ), wherein the covering device ( 11 ) a top cover unit ( 11.1 ) as well as a left cover unit ( 11.3 ) and a right cover unit ( 11.4 ) having; A side support device ( 12 ); A positioning device ( 14 ) for adjusting the drag-reduced arrangement; characterized in that the load compartment cover device ( 10 ) for positioning the cover device ( 11 ) is formed in a drag-reduced position, wherein the top-side cover unit ( 11.1 ) relative to the page carrier ( 12 ) and at least one of the left and right cover units ( 11.3 . 11.4 ) is displaceable. Laderaumabdeckvorrichtung according to claim 1, characterized in that the positioning device ( 14 ) on the top cover unit ( 11.1 ) and / or a crossmember device ( 13 ) attacks. Laderaumabdeckvorrichtung according to claim 1 or 2, characterized in that the positioning device ( 14 ) Positioning means ( 14.1 ) provided on the side support device ( 12 ) are arranged. Laderaumabdeckvorrichtung according to any one of the preceding claims, characterized in that the side support means ( 12 ) has an air flow-directing geometry and / or at least one side support unit ( 12.1a . 12.1b . 12.1c . 12.2a . 12.2b . 12.2c ), which has a rounded, in particular elliptical or part-circular profile in cross-section. Laderaumabdeckvorrichtung according to any one of the preceding claims, characterized in that the transverse support means ( 13 ) a cross member ( 13.1 . 13.2 . 13.3 ) fixed with respect to the cargo space and independent of the top cover unit ( 11.1 ) can be arranged, in particular on the side support device ( 12 ) is mounted. Laderaumabdeckvorrichtung according to any one of the preceding claims, characterized in that the transverse support means ( 13 ) has an air flow directing geometry and / or at least one cross member ( 13.1 . 13.2 . 13.3 ), which has a rounded, in particular elliptical or part-circular profile in cross-section. Laderaumabdeckvorrichtung according to any one of the preceding claims, characterized in that the covering device ( 11 ) a plurality of top cover units ( 11.1a . 11.1b . 11.1c ), which in each case on the side support means ( 12 ), in particular on at least two side support units ( 12.1a . 12.1b . 12.1c . 12.2a . 12.2b . 12.2c ) in height with respect to the cargo space and relative to the left and right cover units ( 11.3 . 11.4 ) are positionable. Laderaumabdeckvorrichtung according to any one of the preceding claims, characterized in that the covering device ( 11 ) is at least partially designed as a tarpaulin. Vehicle with a load compartment cover device ( 10 ) according to one of claims 1 to 8.

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