EP1787275B1 - Image changing device - Google Patents

Abstract

The invention relates to an image changing device, comprising a frame, an at least partially opening display case, within which is a device for winding and unwinding of posters, viewable from at least two different sides, or other advertisements, which may cooperate with a moving strip, whereby said strip may be unwound from a first roller, diverted around at least one deflector roller with a change of running direction and wound on a second roller. One of said rollers has a rigid embodiment and the other roller is provided with at least one pre-tensioned spring and at least one electric drive motor acting directly or indirectly on at least one of the rollers.

Description

The invention relates to an image changing device, in which posters or other advertising means of at least two different sides of the viewer are visually accessible.

For the purpose of advertising, image exchanging devices capable of magazineing and interchanging multiple images (e.g., billboards or printed films) are used primarily for advertising.

The image changers used in the outdoor advertising (outdoor area) are mainly designed for large-format images, so that they can be perceived from a distance. In addition, there usually eliminates the need for a space-saving design. The situation is different with so-called indoor devices, that is, indoor image changers (e.g., ticket halls, shops, or the like). They are mainly designed for a picture format of DIN A1, A2 or A3 and must be such that they can be operated even in confined spaces. This applies in particular to the image change and maintenance, e.g. the internal cleaning, which makes it necessary to open the devices. Swiveling door elements make handling more difficult.

Picture changing facilities are sometimes equipped today so that the viewer, the moving posters, advertising or the like, visible only from one side and are usually provided on the opposite side of the visible side with a panel.

The general state of the art includes so-called stationary billboards, in particular for receiving large posters, which can be equipped, if necessary, with at least two pages viewable posters, advertising materials or the like. In a large poster are usually only the front and the back equipped, the attractiveness of the consideration the posters, advertising or the like, seen over a certain time, rather diminishes. For this reason, many image changing devices are used today, which are equipped with several posters, advertising materials or the like and show the viewer varied motives. As already mentioned, but only from one side.

From the FR-A 1 353 043 a device has become known in which the rollers of the image changing device are driven by motors which are connected via electrical couplings with the rollers. Each role is assigned its own drive. Depending on the winding direction is always only a motor in use, which acts on the corresponding role on the associated clutch. The other role is free here. By this measure, the changing different winding radii are compensated during rolling up and unrolling.

The EP-A 0 628 942 relates to a method of unwinding banded advertisements and apparatus for performing the method. Used are two vertically arranged rollers, which are provided for receiving a tape. If necessary, pulleys can be provided. In at least one take-up roll, the drive shaft is connected via at least one spring device pretensioned in the take-up direction to an associated cylinder jacket. In this image changing device, an advertisement can only be viewed from one side.

In the FR-A 2 448 203 For example, a picture changing device having a plurality of viewing areas is described, which includes two take-up rollers and deflection rollers. All rolls are vertical and stationary. The deflection rollers cause the viewer to look at an image parallel to the display window in the respective viewing area.

The aim of the subject invention is to provide an image changing device, which is designed so that at least two visible areas are formed and the circulation of posters, advertising or the like so is carried out that in all visible areas sufficient tension of the visible posters, advertising or the like is given. The image changing device should be easy to operate even in confined spaces.

This object is achieved by an image changing device comprising a frame, an at least partially open display case, within which a device for winding and unwinding of movable with a band in operative connection, from at least two different sides viewable posters or other advertising means is provided the belt can be unrolled from a first vertically arranged roller to at least one vertically arranged guide pulley deflectable under change of direction and on a second vertically arranged roll, one of the rollers is designed as a rigid roller and the other roller is provided with at least one prestressed spring and at least one electric drive motor acts directly or indirectly on at least one of the rollers, in such a way that when using only one deflection roller and viewing the posters or other advertising means from two different sides, the two rollers with larger Distance are provided to each other and record the pulley to form an imaginary, in particular isosceles, triangle between them.

This object is also achieved by an image changing device comprising a frame, an at least partially open display case within which a device is provided for winding and unwinding of movable with a band in operative connection, viewed from at least two different sides posters or other advertising means, wherein the band from a first vertically arranged roll unrolled about at least one vertically arranged deflection roller is deflectable under changing the direction and on a second vertically arranged roll, one of the rollers formed as a rigid roller and the other roller is provided with at least one prestressed spring and at least one electric drive motor medium or immediate Acts on at least one of the roles, such that when using multiple pulleys and viewing the billboards or other advertising of more than two sides, the two rollers positioned at a predetermined distance from each other and the pulleys generating polygonal vertices with possibly different distances to form several imaginary, In particular, rectangular or square, surfaces are provided to the rollers.

This object is also achieved by an image changing device comprising a frame, an at least partially open display case, within which a device for winding and unwinding can be brought into operable connection with a movable band, viewable from at least two different sides posters or other advertising means, wherein the band from a first vertically arranged roll unrolled about at least one vertically arranged deflection roller is deflectable under changing the direction and on a second vertically arranged roll, one of the rollers formed as a rigid roller and the other roller is provided with at least one prestressed spring and at least one electric drive motor acts directly or indirectly on at least one of the rollers, such that, when using a plurality of deflection rollers and viewing the posters or other advertising means of more than two sides, the two rollers with a predeterminable distance positioned to each other and the pulleys are positioned to form polygonal vertices with an imaginary center outgoing substantially equal radial distances to form an imaginary approximately circular base to the rollers.

Advantageous developments of the image changing device according to the invention can be found in the dependent claims.

With the image changing devices according to the invention, it is now possible that, depending on the number of pulleys to be used, at least two visible areas are formed on which, if necessary, different posters, advertising material or the like can be viewed. By use At least one, preferably designed as a helical spring in the range of one of the rollers can be compensated at the same speed of the drive shafts when winding and unwinding of the roll on the rollers adjusting different peripheral speeds of the winding. At the same time, due to the bias of the spring, the band portion between the rolling roller and the guide roller or the guide roller and the other roll on tight, so that the provided on the respective tape section self-advertisement or as a separate advertisement on the tape section elastically mounted display is undisturbed viewable when the respective band section for a predetermined period between the rollers / guide roller (s) is stopped.

The respective electric drive motor of the two rollers at the same speed can preferably take place in that either a motor, preferably a geared motor, is arranged on the drive shaft of one of the rollers and the two shafts are coupled to one another via a revolving drive member, in particular a toothed belt. Alternatively, it is also possible to provide the electric drive motor (s) in the region between the rollers and to guide the revolving drive means, such as toothed belts or the like, in the direction of the two drive shafts of the rollers.

The image changing device according to the invention now makes possible the following alternative embodiments:

When using only one pulley and viewing the posters or other advertising material from two different sides, the two roles with each other at a greater distance vorsehbar and the pulley taken to form an imaginary, in particular isosceles triangle between the rollers.

When using multiple pulleys and viewing the posters or other advertising material of more than two pages is proposed, the two roles with predeterminable distance to each other to position and the pulleys to form polygonal corners with possibly different distances to form polygonal, in particular rectangular or square surfaces to position the rollers.

Alternatively, it is also possible, when using multiple pulleys and viewing the posters or other advertising material of more than two sides to position the two roles with predetermined distance to each other and the pulleys under formation of polygonal vertices with outgoing from an imaginary center substantially the same radial distance below Formation of an imaginary approximately circular base to position the rollers. In this case, an advertising pillar is thought of which offers the viewer the widest possible viewing area over a predeterminable circumferential area (with the exception of the area where the two rollers are provided).

According to a further aspect of the invention, the display case is made of glass or scratch-resistant plastic and, depending on the spatial arrangement, can be designed to be at least partially movable relative to the frame in the horizontal or vertical direction. As already mentioned, image change devices are advantageously used where there is a large public traffic. These can be airports, railway stations, hotels or the like, where the medium of advertising can be used meaningfully. Depending on the spatial situation and the number of pages used for viewing, it is thus possible to form a wide variety of display cabinet designs and positions of the picture changing device.

Figuren 1 bis 3

Unterschiedlich gestaltete erfindungsgemäße Bildwechseleinrichtungen mit zwei und mehr sichtbaren Bereichen.

The subject invention is illustrated by schematic diagrams in the drawing and will be described as follows. Show it:

FIGS. 1 to 3

Differently designed picture changing devices according to the invention with two and more visible areas.

The FIGS. 1 to 3 show different image changing devices 1, which include two rollers 2,3 and at least one guide roller 4 as the same components. The FIGS. 1 to 3 represent schematic diagrams, which selbige not reflect the design possibilities of the subject invention, but only individual variants are. The rollers 2, 3 form winding and unwinding areas and cooperate in this example with a single electric drive motor 5. The drive motor 5 is connected via toothed belt 6 with the respective roller 2,3.

The scope of protection also includes the arrangement of several drive motors in the region of the rollers 2, 3.

The one roller 2 is formed as a rigid roller, while the other roller 3 cooperates with a prestressed coil spring 7, through which a defined bias for the circulating belt 8 can be realized. By holding the belt 8 on the one hand between the roller 2 and the guide roller 4 and on the other hand between the guide roller 4 and the other roller 3 under the resilient bias of the spring 7 which can be at the same speed of the rollers during winding and unwinding of the roll on the Rolls 2.3 adjusting different peripheral speeds of the winding when using the drive motor 5 can be compensated. At the same time the tape 8 is kept taut, so that the existing on the tape sections 9,10,11,12 posters, advertising or the like are undisturbed viewable if the respective band section 9,10,11,12 for a predetermined period of time, on the one hand between the rollers 2 and the respective guide roller 4 and on the other hand between the respective guide roller 4 and the rollers 3, respectively the respective guide rollers 4, is stopped.

The FIGS. 1 to 3 show various geometric arrangements on the one hand, the rollers 2,3 and on the other hand, the guide roller (s) 4th

According to FIG. 1 For example, an image changing device 1 that can be guided around a corner 19 is positioned on wall regions 20, 21 of the corner 19. The visible Band sections 9,10 are 90 ° offset from each other. By connecting the center points 13 to 15, the center shafts 13, 14, 15 that form the drive shafts and / or the deflecting shaft produce an imaginary isosceles triangle 22. In this example, the electric drive motor 5 only acts on the drive shaft 13 of the roller 2 via toothed belt 6 the prestressed spring element 7 is positioned in the form of a helical spring in the region of the roller 3. The display case 23 is also formed at right angles in this example and if necessary provided with swing doors.

In FIG. 2 a substantially rectangular display case 24 is shown, in which three visible image sections 9,10,11 are formed. The belt 8 runs around two spaced apart (not visible) pulleys 4 around and is in the range of this also provided at a distance (not visible) rollers 2.3 up or unwound. Function and operation of in FIG. 2 displayed image changing device 1 corresponds to those of FIG. 1 ,

FIG. 3 shows another alternative. In the manner of an advertising column, the image changing device 1 includes rolls 2, 3 and three deflection rolls 4, whereby four visible image sections 9, 10, 11, 12 are formed. By increasing the number of pulleys 4, if necessary, further visible areas can be formed. The rollers 2,3 and the guide rollers 4 are arranged in this example on the same radius, so that an imaginary circular base is formed. The display case itself is provided with the reference numeral 25 and encloses the rollers 2,3 and the guide rollers 4, wherein the rollers 2,3 are not visible.

Alternatively, depending on the spatial condition, it is also possible to anchor the image changing device to wall areas or to provide the same on a support frame connected to a ceiling area.

LIST OF REFERENCE NUMBERS

1

Image changer

2

role

3

role

4

idler pulley

5

drive motor

6

toothed belt

7

coil spring

8th

circulating band

9

band section

10

band section

11

band section

12

band section

13

Focus

14

Focus

15

Focus

16

corner

17

wall area

18

wall area

19

isosceles triangle

20

Showcase

21

Showcase

22

Showcase

Claims (8)

1. An image changing device comprising a frame (29), a showcase (17, 23, 24, 25) that can at least be partially opened and within which a device is provided for winding up and unwinding posters or other advertising media that can be brought into active relation with a mobile band (8) and can be looked at from at least two different sides, wherein the band (8) can be unrolled from a first vertically arranged roll (2 or 3), can be deflected around at least one vertically arranged deflection roller (4) while changing the running direction and can be rolled up on a second vertically arranged roll (3 or 2), one of the rolls (2) being formed as rigid roll and the other roll (3) being provided with at least one biased spring (7) and at least one electric drive motor (5) acting indirectly or directly upon at least one of the rolls (2, 3), such that when only one deflection roller (4) is used and the posters or other advertising media are looked at from two different sides (9, 10), the two rolls (2, 3) are provided with greater mutual distance and receive the deflection roller (4) between them while forming an imagined, in particular isosceles triangle.
2. An image changing device comprising a frame (29), a showcase (17, 23, 24, 25) that can at least be partially opened and within which a device is provided for winding up and unwinding posters or other advertising media that can be brought into active relation with a mobile band (8) and can be looked at from at least two different sides, wherein the band (8) can be unrolled from a first vertically arranged roll (2 or 3), can be deflected around at least one vertically arranged deflection roller (4) while changing the running direction and can be rolled up on a second vertically arranged roll (3 or 2), one of the rolls (2) being formed as rigid roll and the other roll (3) being provided with at least one biased spring (7) and at least one electric drive motor (5) acting indirectly or directly upon at least one of the rolls (2, 3), such that when several deflection rollers are used and the posters or other advertising media are looked at from more than two sides (9, 10, 11), the two rolls (2, 3) are positioned with a pre-determinable distance with respect to each other and the deflection rollers (4) are provided at eventually different distances while generating polygonal corner points and forming several imagined, in particular isosceles or square surfaces with respect to the rolls (2, 3).
3. An image changing device comprising a frame (29), a showcase (17, 23, 24, 25) that can at least be partially opened and within which a device is provided for winding up and unwinding posters or other advertising media that can be brought into active relation with a mobile band (8) and can be looked at from at least two different sides, wherein the band (8) can be unrolled from a first vertically arranged roll (2 or 3), can be deflected around at least one vertically arranged deflection roller (4) while changing the running direction and can be rolled up on a second vertically arranged roll (3 or 2), one of the rolls (2) being formed as rigid roll and the other roll (3) being provided with at least one biased spring (7) and at least one electric drive motor (5) acting indirectly or directly upon at least one of the rolls (2, 3), such that when several deflection rollers are used and the posters or other advertising media are looked at from more than two sides (9, 10, 11, 12), the two rolls (2, 3) are positioned with a pre-determinable distance with respect to each other and the deflection rollers (4) are positioned from an imagined centre at essentially the same radial distances while generating polygonal corner points and forming an imagined approximately circular area with respect to the rolls (2, 3).
4. A device according to one of the claims 1 through 3, characterized in that at least one of the rolls (2 or 3) is inclined out of the vertical with a pre-determinable small inclination angle.
5. A device according to one of the claims 1 through 4, characterized in that both rolls (3, 4) are inclined out of the vertical with a pre-determinable small inclination angle.
6. A device according to one of the claims 1 through 5, characterized in that the electric drive motor (5) is approximately provided in the area of the rolls (2, 3) and acts upon the respective roll (2 or 3) provided with a drive shaft via transport devices, in particular toothed belts (6).
7. A device according to one of the claims 1 through 6, characterized in that the electric drive motor (5) is provided in the area of the rigid roll (2).
8. A device according to one of the claims 1 through 7, characterized in that the showcase (17, 23, 24, 25) is made of glass or scratch resistant plastic and can be at least partially displaced in the horizontal or vertical direction with respect to the frame (29) in an opening or closing manner.

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