DE102010050056A1 - Indicating instrument for optically and readably displaying e.g. engine speed to operator of motor vehicle, has covering device arranged in line of sight, where covering device and dial enclose pointer and cavity - Google Patents

Abstract

The instrument (1) has a pointer (19) and a dial (21) for optically and visibly displaying information e.g. engine speed, to an operator of a motor vehicle. A transparent covering device (10) e.g. light guide, is arranged in a line of sight. The pointer and the dial are covered by the covering device, which has an optically transparent view surface solid body (13) with a view surface (25). The covering device has a tube section body, where the covering device and the dial completely enclose the pointer and a cavity. The view and covering surfaces are arranged parallel to each other.

Description

The invention relates to a display instrument of a vehicle by means of the at least one a state of the vehicle characterizing information for an operator of the vehicle is optically readable displayed.

Indicator instruments of the type mentioned are known. For example, as a so-called instrument cluster of a motor vehicle, they can represent different variables such as a driving speed, an engine speed and / or the like. Such display instruments may be designed, for example, as a pointer base instrument with a pointer and a dial or optionally as a digital instrument. It is known to protect relatively sensitive parts that are used for display, for example, the dial and the pointer by a protective device, for example, to arrange behind a glazing.

The object of the invention is to provide an improved display instrument of a vehicle, in particular to specify optical properties of the display instrument in a simple manner.

The object is in a display instrument, by means of which at least one information for an operator visually readable is displayed, with a pointer and a dial, by means of which the information is visually displayed, one in a while reading the display instrument between the operator and the display instrument transparent covering device, by means of which the pointer and the dial are covered, wherein the covering device has an optically transparent visible surface volume body with a visible surface facing the operator and a cover surface facing the pointer and the dial, and a tubular body integrally connected to the visible surface volume body, wherein the Cover device and the dial completely enclosed the pointer and a cavity. Advantageously, by means of the visible surface volume body, optical properties can be set or predetermined when reading the display instrument. Advantageously, the visible surface volume body may have a refractive power and thereby cause optical properties when reading the display instrument. For this purpose, the visible surface volume body is arranged in the line of sight, so it can break optically perceivable light beams from the display instrument and thus cause an optical image of the hands and the dial, alternatively and / or additionally a digital display.

In one exemplary embodiment of the indicating instrument, it is provided that the covering device terminates flush with the dial or rests on it. Advantageously, no additional housing of the pointer is necessary.

In one exemplary embodiment of the indicating instrument, it is provided that the viewing surface and the covering surface are arranged parallel to one another. Advantageously, an optically neutral as possible property of the visible surface volume body can be achieved.

In a further exemplary embodiment of the indicating instrument, it is provided that the visible surface and / or the covering surface have a curvature. Advantageously, by means of the curvature / s different imaging properties can be set when reading the display instrument.

In a further exemplary embodiment of the indicating instrument, provision is made for the covering device to have a hollow-cylindrical, in particular hollow circular-cylindrical, basic shape and for the visible surface and the covering surface to be arranged at a cylinder end of the basic shape. Advantageously, the line of sight can run along or at a point angle to the longitudinal axis of the cylindrical basic shape, so that the rays can be passed along or slightly oblique to the longitudinal axis through the cavity of the cylinder.

In a further embodiment of the indicating instrument it is provided that the visible surface volume body is arranged obliquely to the pipe section body. Advantageously, a futuristic value appearance and / or an improved readability, in particular by a reduction of reflections, can be achieved.

In a further exemplary embodiment of the indicating instrument, it is provided that the covering surface and / or the visible surface can be described as a cylinder section, in particular as a cylinder plane section, in particular as an inclined cylinder plane section, in particular as a cylindrical ball section, in particular as a cylinder hyperboloid section. Advantageously, the optical properties for viewing the pointer and the dial can be determined or determined by means of the different curvatures or configurations of the covering surface or visible surface.

In a further embodiment of the display instrument is provided that the viewing surface is optically anti-reflective. Advantageously occur when reading the display instrument no disturbing reflections or are at least reduced to a minimum.

In a further embodiment of the display instrument is provided that the covering device is designed as a light guide with a light entrance, a Lichtleitstrecke and a light exit. Advantageously, the covering device can additionally be used as an optical waveguide, for example for illuminating the display device and / or for producing a special optical effect, in particular for increasing a value appearance.

The object is also achieved in a motor vehicle with a display instrument described above. This results in the advantages described above.

Further advantages, features and details will become apparent from the following description in which - where appropriate, with reference to the drawings - at least one embodiment is described in detail. Described and / or illustrated features form the subject of the invention, or independently of the claims, either alone or in any meaningful combination, and in particular can additionally also be the subject of one or more separate invention (s). The same, similar and / or functionally identical parts are provided with the same reference numerals.

Show it:

1 a schematic view of a display instrument;

2 a schematic sectional view taken along the line II-II of in 1 shown indicating instrument;

3 another sectional view analogous to in 2 shown sectional view, in contrast, a visible surface is designed plan; and

4 a schematic plan view of a pointer and a dial of a display instrument, in contrast, the cover device is designed as a light guide.

1 shows a schematic view of a display instrument 1 , The indicating instrument 1 can be part of a motor vehicle.

The indicating instrument 1 is below a steering wheel 7 arranged. By means of the indicating instrument 1 For example, information such as one or more sizes can be visually displayed to an operator. The quantities may be, for example, a speed and an engine speed.

2 shows a schematic sectional view taken along a line II-II of FIG 1 illustrated display instrument 1 , It can be seen that the display instrument 1 a basic body 11 having. Further, a pointer 19 and a dial 21 by means of a covering device 10 covered, the optically transparent visible surface volume body 13 and integrally connected thereto a pipe section body 14 having. The pointer 19 and the dial 21 are between the main body 11 of the indicating instrument 1 and the optically transparent visible surface volume body 13 in a line of sight 15 arranged. The line of sight 15 results between an operator 17 , the meter 1 read and the pointer 19 and the dial 21 , The line of sight 15 runs by the operator 17 proceeding through the visible surface volume body 13 and by one of the cover device 10 and the dial 21 enclosed cavity 12 to the dial 21 , The visible surface volume 13 has an optical power, so that an optical image of the dial 21 he follows. According to the presentation of the 2 forms the visible surface volume body 13 a biconcave lens.

The pipe section body 14 and the one-piece associated visible surface volume body 13 the cover device 10 enclose the cavity 12 partially. The cover device 10 and the dial 21 together enclose the pointer 19 and the cavity 12 Completely. The cover device 10 closes with the dial 21 flush or is alternatively on this.

At the indicating instrument 10 For example, it may be a pointer instrument with the pointer 19 and the dial associated therewith 21 act.

The pipe section body 14 has a hollow cylindrical basic shape, in particular a hollow cylindrical basic shape and is the dial 21 and the pointer 19 assigned. The cover surface 23 of the visible surface volume body 13 is the pointer 19 and the dial 21 facing and covers together with an inside of the pipe section body 14 the pointer 19 and the dial 21 from.

The operator 17 faces facing the visible surface volume body 13 a visible surface 25 on. The visible surface 25 has a curvature 27 on, by means of the advantageous optical properties of the display instrument 1 can be determined and / or predetermined, for example, an enlargement, reduction and / or distortion and / or the like by means of the operator 17 viewable pointer 19 and dials 21 of the indicating instrument 1 ,

3 shows a further sectional view of a dial 21 that with another visible surface volume body 13 covered is analogous to the representation of 2 , In contrast to the representation according to the 2 has the visible surface 25 no curvature 27 on, so is flat and writable as an oblique plane cylinder section. Alternatively and / or additionally, the visible surface 25 be anti-reflective, which prevents reflections occurring during reading or at least can be reduced to a minimum. Another difference is the visible surface volume body 13 according to the 3 a light entry 29 , a light guide 31 and a light exit 33 on, so is also advantageous in addition designed as a light guide. The light guide can be a one-piece component of the pipe section body 14 be.

According to the presentation of the 2 forms the visible surface volume body 13 a plano-convex lens.

4 shows a plan view of the in 3 shown visible surface volume body 13 , It can be seen that the light emission 33 is annular, for example, by providing a matting. Advantageously, a light effect can be achieved thereby, wherein the respective pointer 19 and dials 21 are surrounded by a circle of light. Advantageously, the light is emitted in a dark environment. This is the cover 10 preferably provided with an additional border which a direct entry of ambient light, for. B. from above einstrahlender sun avoids.

The cover device 10 advantageously has the visible surface volume body 13 on, wherein in an interior of the visible surface volume body 13 itself and in the enclosed cavity 12 no possible optical properties deteriorating pollution may occur. Advantageously, any existing geometric antireflection coating can be concentrated on comparatively small areas. Advantageously, various optical effects and designs by means of the curvature 27 the visible surface 25 can be specified or adjusted. Advantageously, an optically floating design of the display instrument 1 will be realized. A geometric and an optical anti-reflection by a suitable arrangement of the visible surface are advantageous 25 relative to the line of sight 15 and / or covering surface 23 , in particular by an arrangement at an angle to each other, possible.

Advantageously, the visible surface volume body 13 , which may be embodied as a glass body, for example, in a direction by twisting during assembly of the display instrument 1 easily adapted.

Advantageously, display areas for an anti-reflection need not be kept. Advantageously, alternatively and / or additionally the visible surface volume body 13 and / or the integrally connected pipe section body 14 the cover device 10 as a light guide with the light entry 29 , the light guide 31 and the light exit 33 be used.

Advantageously form the visible surface volume body 13 and the pipe section body 14 the cover device 10 of the indicating instrument 1 a transparent one-piece freeform cover for a foreclosure of the hands 19 and the dials 21 of the indicating instrument 1 , for example, designed as a combination instrument of a motor vehicle. The visible surface is advantageous 25 executable as a free-form viewing surface, which by means of the visible surface volume body 13 is feasible. Advantageously, optical imaging functions can be realized, in particular by the curvature 27 or the according to 3 shown flat version of the visible surface 25 , The cover device 13 has a visible surface volume body 13 on, which fulfills an optical imaging function, with straight or curved outer contours which run parallel or opposite to each other for refraction of the light incident on the visible surface.

Advantageously, the inside of the pipe section body 14 formed low reflection. This is the inside of the pipe section body 14 at least partially coated with a low reflection material. Likewise, an embodiment of the one-piece pipe section body 14 conceivable from several materials. Likewise, an avoidance of reflections by the introduction of an insert on the inside of the pipe section body 14 conceivable.

Due to the transparent design of the pipe section body 14 is a lateral view of the cover 10 possible. This is a look at the dial 21 or on the dial surrounding elements from every perspective possible, for. B. also from the perspective of the passenger.

LIST OF REFERENCE NUMBERS

1

Gauge

7

steering wheel

10

covering

11

body

12

cavity

13

Visible surface solid

14

Tubular body

15

line of sight

17

operator

19

pointer

21

dial

23

coverage area

25

viewing area

27

curvature

29

light entry

31

optical link

33

light output

Claims (10)

Indicating instrument ( 1 ), by means of which at least one information for an operator ( 17 ) is visually readable, with: - a pointer ( 19 ) and a dial ( 21 ), by means of which the information can be displayed in an optically visible manner, - one in which the reading device ( 1 ) between the operator ( 17 ) and the indicating instrument ( 1 ) resulting line of sight ( 15 ) arranged transparent cover device ( 10 ), by means of which the pointer ( 19 ) and the dial ( 21 ) are covered, wherein the covering device ( 10 ) an optically transparent visible surface volume body ( 13 ) with an operator ( 17 ) facing visible surface ( 25 ) and one the pointer ( 19 ) and the dial ( 21 ) facing cover surface ( 23 ) and one with the visible surface volume body ( 13 ) integrally connected pipe section body ( 14 ), wherein the covering device ( 10 ) and the dial ( 21 ) the pointer ( 19 ) and a cavity ( 12 ) completely enclose. Indicating instrument according to the preceding claim, wherein the covering device ( 10 ) with the dial ( 21 ) is flush or gets up on this. Indicating instrument according to the preceding claim, wherein the visible surface ( 25 ) and the cover surface ( 23 ) are arranged parallel to each other. Display instrument according to one of the preceding claims, wherein the visible surface ( 25 ) and / or the covering surface ( 23 ) a curvature ( 27 ). Display instrument according to one of the preceding claims, wherein the covering device ( 10 ) has a hollow cylindrical, in particular hollow cylindrical, basic shape and the visible surface ( 25 ) and the cover surface ( 23 ) are arranged at a cylinder end of the basic shape. Display instrument according to one of the preceding claims, wherein the visible surface volume body ( 13 ) obliquely to the pipe section body ( 14 ) is arranged. Indicating instrument according to one of the preceding claims, wherein the covering surface ( 23 ) and / or the visible surface ( 25 ) can be described as a cylinder section, in particular as a cylinder plane section, in particular as an oblique cylindrical plane section, in particular as a cylindrical ball section, in particular as a cylinder hyperboloid section. Display instrument according to one of the preceding claims, wherein the visible surface ( 25 ) is optically antireflective. Display instrument according to one of the preceding claims, wherein the covering device ( 10 ) as a light guide with a light entrance ( 29 ), a Lichtleitstrecke ( 31 ) and a light exit ( 33 ) is trained. Motor vehicle with a display instrument ( 1 ) according to any one of the preceding claims.

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