DE102005052030B4 - Foldable display device with cover, in particular for motor vehicles - Google Patents

Abstract

Display device (I) for displaying information on a display (7), comprising - a housing (2) with a housing opening (4), - a cover (5) between a first, so-called covering position (P) in which they the housing opening (4) at least partially covers, and a second, so-called release position (F), in which it at least partially releases the housing opening (4), is arranged movably on the housing (2), - a display unit (6), between a first, so-called rest position (R), in which the display unit (6) is fully retracted behind the housing opening (4) in the housing (2), and a second, so-called display position (A), in which the display (7) the display unit (6) is at least partially extended out of the housing opening (4), movably arranged in the housing (2), guide means (10, 11, 22, 23), through which the display unit (6) and the cover (5 ) in the movements between i in each case the first (P, R) and second (F, A) positions are guided, wherein the entire movement sequence of the display device (I) consists of these two movements, - mechanically acting coupling means (18, 27, 30 or 21, 32 , 34, 38), by which the movement of the display unit (6) with the movement of the cover (5) is at least partially coupled, - an electric motor drive for moving the display unit (6) and the cover (5) between their respective first (P , R) and second (F, A) positions, wherein the coupling means cause a non-uniform coupling between the movement of the display unit (6) and the movement of the cover (5) such that over a complete movement of the display device (1) the ratio between the relative proportion of the already traversed by the display unit (6) traversing motion on their total traversing movement on the one hand and the relative proportion of bere its traversed by the cover (5) traversing movement on the other hand zurückzulegenden traversing movement varies on the other hand, characterized in that the display unit (6) between the rest position (R) and the display position (A) of at least one pivotal movement and at least one translational movement combined movement wherein the guide means (10, 11) of the display unit (6) on the one hand an at least partially rectilinear slotted guide (11) through which a on the display unit (6) arranged guide pin (18) is guided, and on the other hand, a pivot lever (10) comprise, each pivotally hinged to the housing (2) and to the display unit (6).

Description

State of the art

The present invention relates to a display device for displaying information on a display, which can be installed, for example, in machinery, equipment, plants or vehicles. Preferably, such a display device can be installed in the interior of motor vehicles, in particular in or behind the instrument panel of a motor vehicle. It comprises a housing with a housing opening, wherein the housing can be installed in such a way that the housing opening faces the interior of the vehicle or to an outside of a machine or installation. Furthermore, such a display device comprises a cover arranged movably in or on the housing, which covers between a first position in which it at least partially covers the housing opening and which is therefore referred to as cover position, and a second position in which it at least partially releases the housing opening and which is therefore referred to as the release position, is movable, as well as a movably arranged in or on the housing display unit which is located between a first position, which is referred to as rest position and in which the display unit retracted completely behind the housing opening in the housing, and a second position, which is referred to as a display position and in which the display of the display unit is extended and at least partially protrudes from the housing opening, is movable. To guide the display unit and the cover in the Verfahrbewegungen between their respective first and second positions guide means are provided. The two movements of the display unit and the cover together form the entire movement of the display device when opening or extending into the display position or when closing or retracting into the rest position. Furthermore, the display device comprises mechanically acting coupling means, by means of which the movement of the display unit can be at least partially mechanically coupled with the movement of the cover, and an electromotive drive for moving the display unit and the cover between their respective first and second positions.

In particular, in motor vehicles display devices are well known that can serve to assist the driver in various tasks. Thus, on the display information from driver assistance systems, for example, images taken by a camera in a rearview camera system to support reversed parking operations or driving directions can be displayed in a navigation system. Nevertheless, display devices of the present type can also be used in any other fields of application, for example in rail, air or water vehicles, as well as in various systems, devices or machines, for example in washing machines or dishwashers.

From the EP 1 308 348 A2 a display device of the aforementioned type is known, which is arranged in the dashboard or in the instrument panel of a motor vehicle. It comprises a pivotally mounted in a recording display unit whose facing the driver opening can be covered by a pivotally mounted cover. To display information on the display, the cover is unfolded to reveal the view of the in the opening of the recording in a display position swung up display. When not using the display device, the display unit is pivoted back into a rest position in the interior of the receptacle, so that the no longer required opening of the receptacle can be covered by folding back the cover again. In this case, the two folding or pivoting movements of the display unit and the cover can be coupled together by mechanically acting coupling means and thus also driven by a common electric motor.

The US 2005/0105196 A1 discloses a mirror assembly for a so-called "head-up display" in a motor vehicle, in which a pivotally mounted mirror surface is retractable when not in use in the dashboard of the vehicle. However, no cover is provided, so that viewed in use of the system by the driver display surface even when not in use in the dashboard freely accessible points upwards and is not protected.

Further, for example, from the EP 0 733 512 B1 Devices for motor vehicles are known in which covers of a container, in particular an ashtray or a storage compartment, as the only moving part of the device are movably mounted via guide means between two end positions.

In addition, it is in storage compartments of motor vehicles from the EP 1 431 123 A1 Known to couple the pivotally mounted outer cover via a lever mechanism with a provided inside the storage compartment and pivotally mounted between an open and a closed position inner compartment such that the inner compartment is also pivoted when closing the storage compartment from the open to the closed position.

From the DE 100 08 887 A1 For example, a screen holding device for retracting a screen in an opening of an equipment part of a vehicle is known. The screen holding device has a pivotable about a horizontal axis carrier carrier screen and a closing the opening in retracted position of the screen cover. Here, the cover is displaceable relative to the screen support and arranged in an extended position of the screen in the viewer behind the screen.

From the DE 199 38 690 A1 a fold-out monitor in an instrument panel of a motor vehicle is known. The fold-out monitor is stored when not in use in a position in a receiving compartment of a module and is spent at commissioning in its used position by means of a locking and positioning. This locking and Postioniereinrichtung is designed as a folding and sliding mechanism, which spends on the slide guides the monitor in its desired position.

From the JP 2004217187 A a covering device for an acoustic device in a motor vehicle is known. Here, the device and the cover are driven via a gear mechanism of a single motor via a rotary motion.

The problem underlying the present invention is generally to provide an improved display device of the type mentioned, which optimally tunes the traversing movements of the display unit and the cover with simple means.

Advantages of the invention

The display device according to the invention has the advantage over the known embodiments that, with a relatively simple and robust construction, it mechanically controls the movements of the display unit and the cover in such a way that overall a particularly homogeneous sequence of movements results. At the same time it is characterized by a high reliability and a relatively inexpensive manufacturability.

The idea underlying the present invention is that the coupling means cause a non-uniform coupling between the movement of the display unit and the movement of the cover, which is designed such that over a complete movement of the display device, the ratio between the relative proportion of already from the Display unit traversed movement on their total traversing movement on the one hand and the relative proportion of already covered by the cover traversing movement on their total traversing movement on the other hand changes. This means that the already covered relative proportions of the respective movement movements of the cover and the display unit during the opening or closing of the display device are not constant, but are different in size at at least two different points of the movement. In this case, in particular, the ratio between the travel speed of the display unit and the travel speed of the cover on the movement of the display device change. The ratio between the relative proportions of the already traversed movement movements and / or the ratio between the speeds can change here continuously or discontinuously and in particular several times.

The cover is neither solid nor uniformly acting coupling means connected to the display unit. Thus, for example, when closing or retracting the display device, the display unit can first be moved out of its display position more than the cover from its release position, whereas when opening or extending the display device, a movement of the cover from its covering position is possible, which is stronger than that initial movement of the display unit from its rest position.

With the embodiment of a display device according to the invention, the movement of the display unit in the desired manner for each application can be tuned by only mechanically acting coupling means to the movement of the cover without electronic control and with only a single common drive motor.

Advantageous developments and improvements of the display device according to the invention will become apparent from the dependent claims. Thus, it may be particularly advantageous if the coupling means are designed such that the entire movement of movement of the cover between its two end positions takes place during a part of the movement of the display unit. The coupling means are active only on a part of the movement of the display unit, so that the cover performs its movement in a shorter period of time than the display unit.

It may also be particularly advantageous if the coupling means are designed such that the display unit from the display position over a first portion of their travel distance is moved while the cover remains unchanged in the release position, and / or that the cover is moved from the covering position over a first portion of its travel distance, while the display unit remains unchanged in its rest position. By the common realization of the two just mentioned variants, a particularly harmonious movement sequence can be achieved both when opening and when closing the display device.

According to a preferred embodiment of the invention it is provided that the display unit between the rest position and the display position performs a combined at least one pivotal movement and at least one translational movement movement, wherein the guide means of the display unit on the one hand at least partially rectilinear slotted guide, through which a on the Display unit arranged guide pin is guided, and on the other hand comprise at least one pivot lever which is pivotally articulated to the housing and the display unit. In this constructively simple manner, both the display position and the rest position of the display unit can be achieved particularly well. In this case, the guide pin is preferably arranged on a lower and / or rear area of the display unit, and the pivot lever is preferably articulated on a rear area of the display unit facing away from the display.

In this case, a particularly advantageous embodiment for the drive for carrying out the desired movements of the display unit can be achieved that at least over a portion of the slide guide a toothing adapted to the course of the slide guide is provided, in which a mounted on the display unit on a shaft and by a in or on the display unit arranged electric motor driven pinion runs. In this way, a very uniform movement of the display unit can be achieved, resulting in a correspondingly high-quality impression of the display device. By doing the guide pin is preferably formed by the pinion bearing shaft, a particularly simple construction is made possible.

According to a further, particularly preferred embodiment of the invention it is proposed that the cover between the covering position and the release position executes a combined at least one pivotal movement and at least one translational movement movement, wherein the guide means of the cover comprise two wings or two pairs of wings, the order mutually parallel pivot axes are articulated in each case on the one hand to the housing and on the other hand to the cover or to a part fixedly connected to the cover. Thus, the cover can reach their two end positions particularly well. In order to ensure a robust design of the display device and stable guidance of the cover, two rockers are advantageously arranged on both sides of the cover, wherein the oscillations articulated coaxially on the right and left sides each form a pair of rockers. Preferably, the rockers are each hinged to a fixedly connected to the cover web, which extends on its underside approximately parallel or at an angle to the cover.

It is particularly advantageous if one of the two rockers, which is referred to as a drive rocker, rotatably connected to a gear or toothed segment, which can be rotationally driven to perform the movement of the cover by a driving element engaging therein. Instead of provided with serrations positively acting drive means as well as frictionally acting friction wheels or friction segments can be used. Of course, a pair of drive links with two toothed wheels or toothed segments arranged parallel to one another on the right and left sides can also be provided here. According to a first embodiment of the invention it is provided that the drive element is formed by a gear segment which engages the gear of the drive rocker, and that the gear segment during a movement of the display unit at least over a portion of the movement of the display unit directly or indirectly by the display unit form-fitting and / or frictionally driven or moved. The area of the display unit that comes into contact with the gear segment forms together with the gear segment the mechanical coupling means according to the invention, which can cause a delayed closing movement of the cover when the display device closes, for example, the first begins after a part of the movement of the display unit.

It is particularly advantageous in this first embodiment, when the gear segment is rotatably connected to a drive fork, which has two spaced apart preferably parallel fork legs, between which a connected to the display unit part can be received in particular form-fitting with a small clearance. The receivable in the drive fork part may be in the sense of a particularly simple construction, preferably the guide pin of the slotted guide, which entrains the drive fork during its displacement in the slotted guide and thereby moves the gear segment and thus the drive rocker and the associated cover.

According to a second embodiment of the invention in a driven via a pinion display unit is alternatively provided that the drive element is formed by the driven by the electric motor of the display unit pinion, wherein the stationary on the slide guide arranged toothing extends only over a portion of the slotted guide and wherein attached to the drive rocker toothed segment so at least in the release position of the cover adjoins the stationary teeth, that the pinion seamlessly run from the teeth in the gear segment and can seamlessly overlap it. After running into the sector gear, the pinion can rotate the sector gear, which is associated with a corresponding movement of the drive rocker and thus the cover.

It is particularly advantageous in this second embodiment, when in addition to the toothed segment a pivotable about an axis of the toothed segment pivotable control element is hinged to the housing, wherein the control element has a control cam, in which a tooth segment axially parallel projecting control pin engages, and that Control is non-rotatably connected to a control fork, which has two spaced-apart fork webs, between which a connected to the display unit part, in particular the pinion-bearing shaft, preferably positively with a small clearance can be added. An undefined free movement of the toothed segment is thereby safely avoided. The shape of the control cam is chosen so that, depending on the position of the display unit and the cover, the desired ratio between feed of the pinion in the slide guide for further movement of the display unit on the one hand and rotation of the toothed segment for further movement of the cover on the other hand is guaranteed.

drawings

In the drawings, embodiments of the invention are shown, which are explained in more detail in the following description. Show it:

1 three-dimensional view of a first embodiment of the display device according to the invention in a display position;

2a : Two-dimensional side view of the display device of 1 ;

3a : Two-dimensional side view of the display device of 1 in a first intermediate position;

4a : Two-dimensional side view of the display device of 1 in a second intermediate position;

5a : Two-dimensional side view of the display device of 1 in a third intermediate position;

6a : Two-dimensional side view of the display device of 1 in a resting position;

2 B to 6b : Side views according to the 2a to 6a but with transparent housing wall, so that the essential parts for the movement of the display device are recognizable;

7 three-dimensional view of a second embodiment of the display device according to the invention in a display position;

8a to 12a : Side views according to the 2a to 6a to the embodiment of 7 ; and

8b to 12b : Side views according to the 8a to 12a , but without housing, so that only the moving parts are shown.

Description of the embodiments

In the following description, the elements and functions that are equally present in both embodiments shown in the figures are described first. Thereafter, the differences will be described separately.

The display device shown in the figures 1 is intended for installation in the instrument panel of a motor vehicle. This is the case 2 the display device 1 either inserted into a corresponding recess in the instrument panel or mounted from the back to the back of the instrument panel. The housing 2 is mounted so that its from a mounting frame 3 enclosed housing opening 4 lies substantially in the plane of the instrument panel and thus points to the interior of the vehicle. In this case, the mounting frame 3 a slightly curved course, which is adapted to the surface curve of the instrument panel of the vehicle.

When not in use, the display device 1 will be the case opening 4 through a cover 5 covered, referring to the mounting frame 3 hangs up and therefore also has a slight curvature and the curvature of the display device 1 adapted to the receiving instrument panel. The display device 1 forms with all moving links a flat gear, in which all pivot axes are arranged parallel to each other.

In order to be able to visually display information of any type to the driver or the occupants of the motor vehicle, for example direction indicators of a navigation system, the display device has 1 a display unit 6 with a display 7 which may be, for example, an LC display or a TFT display or a touch-sensitive screen (touch screen). The display unit 6 can be between a retracted rest position R, where they are in the interior 8th of the housing 2 located ( 6 and 12 ), and an extended display position A ( 1 and 2 such as 7 and 8th ), in which the display 7 in the vehicle occupant facing front 9 the display unit 6 is moved back and forth.

For guiding the movement of the display unit 6 between the retracted rest position R and the extended display position A are guide means 10 and 11 provided in the illustrated embodiments in each case two pivot levers 10 and two slide tours 11 include. These guides 10 and 11 are each in pairs the right and left side of the display unit 6 assigned. The two pivot levers 10 have one end at one of the upper end edge of the housing 2 in the housing opening 4 protruding footbridge 12 and with their other end in a middle area 13 the display 7 opposite back 14 the display unit 6 hinged. The two slide tours 11 each act between one of the two side walls 15 of the housing 2 and one of the two side walls 16 the display unit 6 , They each include an approximately parallel to the housing opening 4 in the two side walls 15 of the housing 2 trained guide slot 17 which initially extends straight from a front lower area into a rear upper area, in which the guide slot 17 ends in a circular section downwardly extending curved path. In the two guide slots 17 is each a guide pin 18 taken up, which at one at the bottom over the back 13 protruding projection 19 the display unit 6 located.

Parallel to the guide slot 17 is on at least one sidewall 15 of the housing 2 inside or outside a rack 20 formed, in which a coaxial with the guide pin 18 stored pinion 21 can roll. This pinion 21 For example, via a suitable transmission, not shown, of one in the display unit 6 or on the back of the display unit 6 arranged, here also not shown electric motor to be driven. The driven by the electric motor pinion 21 moved due to its engagement with the fixed to the housing 2 connected gearing 20 the lead 19 along the slide tour 11 , At the same time results in a pivoting movement of the two pivoting lever 10 so that the display unit 6 overall performs a combined rotational and translational movement to get from the retracted rest position R in the extended display position A or back.

In the in the 6 and 12 shown retracted rest position R of the display unit 6 will be the case opening 4 through the cover 5 covered, which is in a first end position, which is referred to as covering position P. In the in the 1 and 2 such as 7 and 8th shown extended display position A of the display unit 6 is the cover 5 in a second end position, in which it completely releases the housing opening and which is referred to as the release position F.

To guide the movement of the cover 5 between its covering position P and its release position F are two pairs of wings 22 and 23 provided as a guide means, each of which a rocker 22 . 23 on the right and a swingarm 22 . 23 on the left side of the cover 5 is arranged. For simplicity, only one page will be considered below, but all features can always refer to the other side. Both wings 22 . 23 are with one end on a side wall 15 of the housing 2 and with its other end in one with the cover 5 connected footbridge 24 hinged, located at the bottom of the cover 5 extends obliquely backwards down. This is how the cover performs 5 as well as the display unit 6 during their movement a combined movement with a pivoting component and a translational displacement component. The rear swingarm 23 , also called drive rocker 23 is designated, serves to drive the movement of the cover 5 ,

This is in the in the 1 to 6b illustrated embodiment, a coaxial with the pivot axis 25 on the housing 2 arranged gear 26 non-rotatable with the drive rocker 23 connected so that a rotation of the gear 26 for pivoting the drive rocker 23 and thus to a movement of the cover 5 leads. In the gear 26 engages a pivotable on the housing 2 articulated gear segment 27 a, which extends here over an angle of about 90 °. The gear segment 27 is about an axis 28 swiveling, which is slightly parallel to the axis and below the lower pivot axis 25 the drive rocker 23 located. In the release position F of the cover 5 attacks the gear segment 27 with its forward facing upper edge 29 in the gear 26 one. In radial extension of its upper edge 29 has the gear segment 27 a rotationally fixed with the gear segment 27 connected drive fork 30 on, the two parallel fork webs 31 Has. The distance between the two fork webs 31 is sized so that the guide pin 18 can be accommodated in a form-fitting manner with little play between them.

During a movement of the display unit 6 from its display position A to its rest position R shifts the first located below the guide pin 18 ( 2a and 2 B ) in the guide slot 17 up ( 3a and 3b ) and runs after about half of the guide slot 17 in the drive fork 30 one ( 4a and 4b ), so that in its further upward movement, the drive fork 30 over her upper fork 31 entrains and thereby the gear segment 27 and thus over the rolling gear in it 26 also the drive swing 23 as well as the associated coverage 5 emotional ( 5a to 6b ). The length and course of the slotted guide 11 , as well as the radii of meshing gears 26 . 27 and the arrangement of the individual axes is chosen so that in the rest position R of the display unit 6 the guide pin 18 at the top of the guide slot 17 located and the drive fork 30 turned so far upwards that the drive rocker 23 just as far forward is twisted that the cover 5 located in the covering position P.

In a anschießenden opening the display device 1 the described movements take place in the reverse order. The drive fork 30 of the gear segment 27 forms together with the hereby coming in contact guide pin 18 the display unit 6 the mechanical coupling means according to the invention for generating the desired sequence of movements.

In the in the 7 to 12b illustrated alternative embodiment is a coaxial with the pivot axis 25 on the housing 2 arranged toothed segment 32 non-rotatable with the drive rocker 23 connected, leaving a rotation of the toothed segment 32 for pivoting the drive rocker 23 and thus to a movement of the cover 5 leads. The toothing of the toothed segment 32 runs along a circular path, which at its upper end in a rectilinear end piece 33 expires. This tail 33 closes in the release position F of the cover 5 seamless and in a straight line continuation to the rack 20 Here, just over just over half of the guide slot 17 extends.

When retracting the display unit 6 from the display position A to the rest position R, the pinion is running 21 in the slide tour 11 starting from the front lower end diagonally backwards at the top and runs seamlessly into the tail 33 of the tooth segment 32 above. After this running in, the toothed segment 32 from the rotating pinion 21 be rotated, which with a corresponding movement of the drive rocker 23 and thus with the desired movement of the cover 5 connected is. To always have a defined positioning of the tooth segment 32 relative to the position of the pinion 21 to ensure is next to the toothed segment 32 an axially parallel pivoting control 34 on the housing 2 hinged. The control 34 is about an axis 35 pivoting, located behind and slightly below the lower pivot axis 25 the drive rocker 23 located. The control 34 serves to control the relative to each other executable movements of the pinion 21 and the dental segment 32 , This is in the control 34 an approximately arcuate cam 36 except in the one on the toothed segment 32 axially parallel protruding control pin 37 intervenes. In addition, the control is 34 rotatably with a control fork 38 connected, the two parallel fork webs 39 having. The distance between the two fork webs 39 is sized so that the pinion 21 bearing shaft with a small clearance can be positively received in between.

The shape of the cam 36 is designed so that, depending on the respective position of the display unit 6 and the cover 5 always the desired ratio between feed of the pinion 21 in the slide tour 11 for further movement of the display unit 6 on the one hand and rotation of the toothed segment 32 for further movement of the cover 5 guaranteed on the other hand. Here are the control 34 with the control fork 38 together with the drive shaft of the pinion coming into contact with it 21 as well as the pinion 21 driven toothed segment 32 the mechanical coupling means according to the invention for generating the desired sequence of movements.

During a movement of the display unit 6 from its display position A to its rest position R, the pinion initially located below runs 21 ( 8a and 8b ) along the guide slot 17 up ( 9a to 10b ). Once there it is the straight-line and stuck to the case 2 arranged toothing 20 has left and on the toothed segment 32 has accumulated, the pinion carrying shaft simultaneously runs in the control fork 38 one ( 11a and 11b ). By the further rotation of the pinion 21 becomes the toothed segment 32 in the for the closing movement of the cover 5 required direction swung forwards. At the same time the pinion is running 21 but also further in the circular path end portion of the guide slot 17 , whereby the display unit moves to its rest position R. This further movement of the pinion 21 upwards with simultaneous further rotation of the toothed segment 32 is through the control 34 controlled, due to the running-in of the drive shaft of the pinion 21 in the control fork 38 taken or pivoted ( 12a and 12b ). The length and course of the slotted guide 11 , as well as the radius of the tooth segment 32 and the arrangement of the individual axes is also chosen so that in the rest position R of the display unit 6 the pinion 21 at the top of the guide slot 17 located and the toothed segment 32 so far twisted that the drive swing 23 is pivoted forward to the extent that the cover 5 located in the covering position P. In a anschießenden opening the display device 1 The described movements also take place here in the reverse order.

Claims (10)

Display device (I) for displaying information on a display ( 7 ), comprising - a housing ( 2 ) with a housing opening ( 4 ), - a cover ( 5 ), which between a first, so-called covering position (P), in which they the housing opening ( 4 ) at least partially, and a second, so-called release position (F), in which they the housing opening ( 4 ) at least partially releases, movable on the housing ( 2 ), - a display unit ( 6 ) between a first, so-called rest position (R), in which the display unit ( 6 ) completely retracted behind the housing opening ( 4 ) in the housing ( 2 ), and a second, so-called display position (A), in which the display ( 7 ) of the display unit ( 6 ) at least partially from the housing opening ( 4 ) is extended, movable in the housing ( 2 ), - guide means ( 10 . 11 . 22 . 23 ) through which the display unit ( 6 ) and the cover ( 5 ) are guided in the traversing movements between their respective first (P, R) and second (F, A) positions, wherein the entire movement sequence of the display device (I) consists of these two traversing movements, - mechanically acting coupling means ( 18 . 27 . 30 respectively. 21 . 32 . 34 . 38 ), through which the movement of the display unit ( 6 ) with the movement of the cover ( 5 ) is coupled at least in sections, - an electric motor drive for moving the display unit ( 6 ) and the cover ( 5 ) between their respective first (P, R) and second (F, A) positions, the coupling means providing a non-uniform coupling between the movement of the display unit ( 6 ) and the movement of the cover ( 5 ) bring about such that over a complete movement of the display device ( 1 ) the ratio between the relative proportion of already from the display unit ( 6 ) traversed movement movement on the one hand and the relative proportion of already covered by the cover ( 5 ) traversed movement on the other hand varies on their total traversing movement, characterized in that the display unit ( 6 ) between the rest position (R) and the display position (A) performs a combined at least one pivotal movement and at least one translational movement movement, wherein the guide means ( 10 . 11 ) of the display unit ( 6 ) on the one hand an at least partially rectilinear slotted guide ( 11 ), through which one on the display unit ( 6 ) arranged guide pin ( 18 ), and on the other hand, a pivoting lever ( 10 ), each pivotally mounted to the housing ( 2 ) and on the display unit ( 6 ) is articulated. Display device according to claim 1, characterized in that the coupling means ( 18 . 27 . 30 ) are formed such that the entire movement of the cover ( 5 ) between its two end positions (P, F) during a part of the movement of movement of the display unit ( 6 ) he follows. Display device according to claim 1 or 2, characterized in that the coupling means ( 18 . 27 . 30 respectively. 21 . 32 . 34 . 38 ) are formed such that the display unit ( 6 ) is movable from the display position (A) over a first portion of its travel distance, while the cover ( 5 ) is kept unchanged in the release position (F), and / or that the cover ( 5 ) can be moved from the covering position (P) over a first subregion of its travel path, while the display unit ( 6 ) is kept unchanged in its rest position (R). Display device according to one of the preceding claims, characterized in that at least over a partial region of the sliding guide ( 11 ) one the course of the slide guide ( 11 ) adapted toothing ( 20 ) is provided, in which a on the display unit ( 6 ) mounted on a shaft and by a in or on the display unit ( 6 ) arranged electric motor driven pinion ( 21 ), wherein the guide pin ( 18 ) preferably from the pinion ( 21 ) supporting shaft is formed. Display device according to one of the preceding claims, characterized in that the cover ( 5 ) between the covering position (P) and the release position (F) a combined movement of at least one pivoting movement and at least one translational movement movement with the guide means of the cover ( 5 ) two wings ( 22 . 23 ), which are mutually parallel pivot axes on the one hand on the housing ( 2 ) and on the other hand on the cover ( 5 ) or to a fixed to the cover ( 5 ) part ( 24 ) are articulated. Display device according to claim 5, characterized in that one of the two rockers, which as drive rocker ( 23 ), rotatably with a gear ( 26 ) or toothed segment ( 32 ), which is used to carry out the movement of movement of the cover ( 5 ) by a driving element engaging therein ( 21 . 27 ) is rotatable. Display device according to claim 6, characterized in that the drive element by a gear segment ( 27 ) formed with the gear ( 26 ) the drive rocker ( 23 ) is engaged, and that the gear segment ( 27 ) during a movement of the display unit ( 6 ) at least over a portion of the movement of the display unit ( 6 ) directly or indirectly through the display unit ( 6 ) is drivable. Display device according to claim 7, characterized in that the gear segment ( 27 ) rotatably with a drive fork ( 30 ) is connected, the two spaced apart fork webs ( 31 ) between which one with the display unit ( 6 ) connected part is positively accommodated. Display device according to claims 4 to 8, characterized in that the drive element by the electric motor of the display unit ( 6 ) driven pinions ( 21 ), wherein the toothed segment ( 32 ) at least in the release position (F) of Abdeckun extending toothing ( 20 ) connects that for the pinion ( 21 ) a seamless overlap between the teeth ( 20 ) and the toothed segment ( 32 ) given is. Display device according to claim 9, characterized in that in addition to the toothed segment ( 32 ) one to the axis ( 25 ) of the toothed segment ( 32 ) parallel axis ( 35 ) pivoting control ( 34 ) on the housing ( 2 ) is hinged, wherein the control ( 34 ) a control cam ( 36 ), in which a toothed segment ( 32 ) axially parallel projecting control pin ( 37 ) and that the control ( 34 ) rotatably with a control fork ( 38 ) is connected, the two spaced apart fork webs ( 39 ) between which one with the display unit ( 6 ) connected part is positively accommodated.

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