WO1991019284A2

WO1991019284A2 - Changing-advertisement display

Info

Publication number: WO1991019284A2
Application number: PCT/DE1991/000434
Authority: WO
Inventors: David Briscoe
Priority date: 1990-05-28
Filing date: 1991-05-26
Publication date: 1991-12-12

Abstract

The invention concerns a changing-advertisement display with several placards mounted on window-blind-type carriers (21 to 25). Proposed are improvements in placard conveyance, these improvements concerning the placard-carrier linkages and guideways.

Description

Poster-changing system

Technical area

The invention relates to a billboard device according to the preamble of the main claim.

In particular, for advertising purposes facilities are set up in well-visible places, which show successively different posters. This change takes place on the one hand to attract more attention, and on the other hand to be able to offer more information on a given surface.

State of the art

In a known billboard device (WO 90/01765) a plurality of posters mounted on Rolloartigen posters are successively made visible, wherein a transport means Kupplungsvorrichturϊgen depending on the execution in detail a poster or more posters. In this known device of the transport device and the coupling devices is of paramount importance in terms of reliability and in terms of low cost manufacturability. Presentation of the invention

The object of the present invention is

Specify transport devices and coupling devices, which contribute to an advantageous realization of the known billboard device.

The change-label devices specified in claims 1, 4 and 6 also have the advantage that the posters can be made visible in closely spaced planes. The billboard device according to claim 9 allows a good guidance of the posters in the transport planes and a secure connection to the poster carriers. The billboard device according to claim 12 also ensures a reliable transport when winding and unwinding the poster and the poster carrier.

The measures listed in the dependent claims advantageous refinements and improvements of the main claim invention are possible.

Short description of the drawing

Embodiments of the invention are illustrated in the drawing with reference to several figures and explained in more detail in the following description. It shows:

1 shows a known billboard device,

2 shows a first embodiment of a coupling device,

3 shows a second embodiment of a coupling device, 4 shows a third exemplary embodiment of a coupling device,

5 shows an exemplary embodiment of a transport device,

6 shows a part of a rotatable magazine with poster carriers and posters,

7 shows a part of a magazine for the storage of two parallel to each auszurollenden poster carrier

8 shows the drive of two rotatable magazines for two posters to be rolled out in parallel,

9 shows another embodiment for driving a magazine,

10 shows a device for guiding the posters when rolling up or unrolling,

11 shows an exemplary embodiment of a poster carrier,

Fig. 12 shows another device for guiding the posters and

Fig. 13 shows a fourth embodiment of a coupling device.

Identical parts are provided in the figures with the same reference numerals.

Ways to carry out the invention

The known billboard device is as a top view (Figure 1A) and from the perspective of the viewer of the billboards (Figure 1B). Only the most important parts necessary for understanding the known billboard device are shown, while other parts, such as housings, motor drive devices and gearboxes, are omitted.

In a transport device 20 slides on two guide tubes 1, 2 each have a sleeve 3, 4. These are available as linear ball bearings on the market and ensure low friction between the tubes 1, 2 and the transport device 20. The sleeves 3, 4 are with a vertical tube 5 is connected to which in the upper and lower regions two grippers 6, 7, 8, 9 are provided. For storage of the tubes 1, 2, an upper support 9 and a lower support 10 are used.

1, the magazines 11, 12 are designed revolver-like and rotatably mounted on each axis 13, 14.

In the magazines 11, 12 rolloartig formed poster carrier are mounted so that their winding axes parallel to the axes 13, 14 of the magazines 11, 12 extend. As with a roller blind, the poster carriers can be handled against the force of a spring, details of the poster carriers are not shown, since they are known by roller blinds (Spring Rollos) in itself. In contrast to the blinds, however, no catch is provided. The respective outer edges of the poster carrier 15 are each provided with a strip 16, on the one hand stiffened the poster carrier and on the other hand serves as a counterpart to the grippers 6 to 9 of the transport device 20. The holder in the magazines 11, 12 takes place in such a way that the outer edges of the poster carrier 15 are directed with the strips 16 to the outside. The magazines can be rotated so that in each case a bar 16 is in the plane of the transport device. The Poster carriers 15 can be removed or fed individually to the respective magazine 11, 12.

With the aid of a drive device, not shown, the transport device 20 is brought alternately from the illustrated right position to the left position. It is connected to a poster carrier of the two magazines on the gripper 6 to 9 and the strips 16. Shortly before reaching the respective end position, the gripper 6, 8 or 7, 9 directed to the respective end position are opened, so that the respective poster carrier 15 is pulled out of the grippers due to the spring force and is wound up to such an extent that it engages in the following revolution of the magazine 11, 12 can be taken again.

The magazine is then rotated so far that the following poster carrier gets into the plane of the transport device 20. Then, the transport device is moved up to the magazine so far that the grippers 6, 8 and 7, 9 take the bar 16 of the poster carrier 15. Finally, after a direction reversal of

Transport device, which unwinds the captured poster carrier from the left magazine 11 and the poster carrier, which is to the right of the transport device 20 ,, in the magazine 12 returns. Thereafter, a corresponding change in the right magazine 12. The opening and closing of the gripper 6 to 9 can be done by corresponding cam 17 in the region of the path of the transport device 20.

Fig. 2 shows a double coupling device which can be used in the known change-poster device of FIG. In this case, the coupling device is suitable for unrolling one on each side of several posters mounted on both sides. Instead of the arrangement of the poster carrier in the rotatable Magazines 11, 12 (FIG. 1) is to provide an arrangement of the poster carrier according to FIG.

The coupling devices consist essentially of a respective shaft 26, 42, are applied to the rotationally fixed discs 27 to 36 and 43 to 52. In each case two discs form an annular gap and have on a part of their circumference projections which narrow the annular gap. The projections of the annular gap to the annular gap are offset by a predetermined angle. At the corners or on the outer edge of each poster carrier 21 to 25, 53 drivers 54 are arranged, which can penetrate into the annular gap, but do not fit through the constricted part of the annular gap.

The shafts 26, 42 are mounted in a manner not shown in a transport device 20, which, as already described in connection with FIG. 1, between the magazines can be moved back and forth. About each freewheel 40, 41 is ever a gear 39, 55 connected to the shaft 26, 42. In the gears engages a rack 38, which can be moved in the direction indicated by a double arrow direction.

The illustration according to FIG. 2 assumes that the coupling device is in the vicinity of an end position in the area of the left-hand magazine. At the end position, which is not yet fully reached in FIG. 2, outer edges of the poster carriers 21, 22, 23, 24, 25 engage between disks 27 to 36 arranged on a shaft 26. A stop 37 is fixed in the change-over-plate device. against which a rack 38 moves when the coupling device 20 approaches the end position. As a result, the rack 38 is shifted to the right and the left shaft 26 is rotated by the gear 39 and a freewheel 40 by a predetermined angle. By turning the poster carrier 23 is released and the poster carrier 22 is coupled. The freewheel 41 on the shaft 42 acts in a different direction of rotation, so that the right coupling device, consisting of the shaft 42 and the discs 43 to 52, is not rotated. The poster carrier 53 engaged with this coupling device is fully extended in the left end position and remains coupled until the coupling device 20 reaches its right end position. Then the rack 38 is moved to the left by a stop corresponding to the stop 37, so that another poster carrier, not shown in FIG. 2, is grasped by the right magazine and the poster carrier 53 is released.

The coupling devices shown in Fig. 2 have the advantage that the billboard and thus the posters can be tightly guided each other. This allows except a small overall depth of the entire

Wechselplakateinrichtung also a favorable for all posters location in terms of viewing and lighting conditions. Depending on the requirements in detail, the coupling devices shown in Fig. 2 can be arranged at half the height of a billboard device, so that a coupling device in each case takes a poster in the middle. However, it can also be provided in each case at the top and bottom corner of the poster carrier coupling devices of FIG.

On the basis of the schematic representation in Fig. 3, a further coupling device is explained. In this case, gag 61 to 65 are provided on a shaft 60 at a distance of the poster carrier, which are each offset by an angle. In poster carrier 66 is a recess 67, wherein a closure strip 68 of the poster carrier has a slot whose length is slightly smaller than the length of a gag and whose upper and lower boundary each forms a driver 69, 70. As a result, only one poster carrier is coupled with the transport device, in which the gag is vertical. The rotation of the shaft 60 with the gags 61 to 66 can take place in a similar manner, as was explained in the embodiment of FIG.

A third embodiment of a

Coupling device is shown in Figs. 4A to 4C. In this case, Figures 4A and 4B, the coupling device in perspective from two directions, while Fig. 4C shows a cross section. The outer edges of the poster devices are to cooperate with the coupling device of FIG. 4, each with a T-shaped rail 71, 72 is provided. For gripping the T-shaped rails 71, 72 are each two gripper arms 73, 74; 75, 76. These are like a piano strap rotatably mounted on a thin rod 77, wherein the four gripping arms can be moved independently. The gripper arms are pressed apart by torsion springs, of which only one leg spring 78 is shown in FIG. 4C for the sake of clarity.

Several such gripper devices are mounted in a frame-like holder 79 and can be moved back and forth between the magazines. Transverse to the direction of movement, a shaft 80 is arranged, which is rotated upon reaching the end positions. In each case two grippers 73 to 76 are associated with two discs 81, 82, on which slopes 83, 84, 85, 86 are arranged such that, depending on the angular position of the discs 81, 82, either the gripper arms 73, 74 or the gripper arms 75, 76 can be compressed. The gripper arms 73 to 76 have the inclines 83 to 86 corresponding counterparts 87 to 90. Fig. 5 shows a transport device with fixed coupling devices. Therefore, a movement der.Tranportträger is required for coupling and disengaging the individual poster carrier, as for example, in a rotatable magazine, which is indicated in Fig. 6, takes place. The coupling devices 91, 92 on the transport device shown in Fig. 5 are hook-shaped and engage in correspondingly shaped hooks 93, 94, which are arranged at the corners of the poster carrier 95, 96. The hooks 93, 94 on the poster carriers 95, 96 are hollow, so that at the beginning of the rolling movement of the respective hooks 91, 92 of the transport device of FIG. 5 penetrates into the counterpart on the poster carrier. This ensures a secure coupling. The disengaging takes place in a simple manner in that the transport device moves into its respective end position, whereby the corresponding hook 91, 92 exits from the counterpart. By a rotational movement of the magazine 97, the respective counterpart is swung laterally.

For movement of the transport device according to FIG. 5, a spindle 98 with a ball-bearing spindle nut 99 is provided. However, only one spindle 98 is provided above the billboard or the posters. However, hooks are provided at their upper and lower corners for winding and unwinding of the poster carriers, of which only those hooks are shown which are located on the upper part of the transport device shown in FIG. 5A. FIG. 5B shows the upper part and the lower part of the transport device as a sectional illustration from a direction deviating by 90 ° from FIG. 4A. Thus, the upper part 100 and the lower part 102 of the

Move transport exactly the same, run in the billboard device two round guide rods 102, 103 which are formed on one side as a rack 104, 105. The guide rods 102, 103 are each of a slider 106, 107 which on each of a shaft 108, 109 carries a gear 110, 111, which engages in the respective rack 104, 105. Furthermore, the two shafts by disks 112, 113 and by a pipe 114 are rotationally connected to each other. To connect the hook 91, 92 with the slider 106 and the spindle nut 99 are two screws 115, 116th

The indicated in Fig. 6 rotatable magazine 97 is used for storage of several posters and posters. In this case, a body 120 is provided both in the upper and in the lower end of the magazine, not shown, each having a guide slot 121, 122 for a magazine and serves to roll the rolled-poster carrier the respective hooks 93, 94 such that he at Rotation of the magazine 97 in the position in which the corresponding poster is to be unwound, can be gripped by the corresponding hook 91, 92 (FIG. 5A) of the transport device.

Each of the poster carriers is held at the outer edge of a bar 123. Depending on the design, the poster carrier may consist in detail of a fabric web or a strong, glass-clear plastic film, with the latter permitting viewing of the posters in transmitted light. In the embodiment shown in Fig. 6, the poster is fixed by means of known per se clamping devices on the poster support such that it can be easily replaced in the unwound state. As clamping devices known per se clamping rails are suitable. In Fig. 6, only one clamping rail 124 is visible on the outer edge of the poster. Since different radii than for the poster carrier arise during winding up for the poster, a compensation is created in the embodiment according to FIG. 6 by springs 125, several of which are embedded in the strip 123. Fig. 7 shows in a greatly simplified form a portion of a magazine 131, in which poster carriers 132, 133 are mounted such that each two juxtaposed poster carrier can be pulled out of the magazine together by a transport device 134. This is advantageous in the case of removable billboards which are intended for viewing from both sides. In the case of transparent posters, a planar illumination device radiating to both sides can be arranged between the posters.

An alternative to the embodiment of FIG _. , 7 is shown in Fig. 8, wherein two magazines 135, 136 are provided, which can be rotated by gears 137, 138, 139 by equal angles. One poster can be pulled out of one magazine at a time.

Fig. 9 also shows as an embodiment a drive device for a rotatable magazine, for example for the magazines 11, 12 (Fig. 1) and 97 (Fig. 6). For this purpose, a gear 142 is rotatably mounted on a rotatably connected to the respective magazine shaft 141, a gear 142 which is connected via a freewheel 143 with the shaft 141 such that only rotational movements are transmitted in one direction. A spring 144 _. presses the two belonging to the freewheel discs together.

In engagement with the gear 142 is a rack 145 which can be moved against the force of a spring 146 in the arrow direction. The end of the rack 145 forms a stop 147 for a counterpart, not shown, on a transport device. For the sake of simplicity, only a part of a carrier 148, in which the shaft 141 is mounted and which serves as a stop for the spring 146, is shown by the rest of the alternate billboard device. If the transport device - For example, the transport device according to FIG. 5 - the end position, the rack 145 is moved in the direction of the arrow and causes a rotation of the magazine until the next poster carrier is engaged. Removes the conveyor again, the spring relaxes 146, whereby the rack 145 moves to its original position without the magazine moves.

10 shows a fixed storage of five poster carriers 151 to 155. The bearings of the axes of the poster carriers are staggered so that the planes in which the poster carriers can be viewed are as close to each other as possible. It has been found that an independent of the transport device or the coupling devices guide on the outer edge of the poster carrier is advantageous. For this purpose, in the embodiment according to FIG. 10, a frame-like holder is provided in each case at the upper and at the lower edge of the area provided for the unwrapped poster carriers, of which only the holder 156 is shown at the upper edge.

In the holder 156 steel rods 157 to 161 are mounted under prestress. As a result, a stable guide for the outer edge of the respective developed billboard is possible, the planes in which the posters are made visible in each case, can be extremely close together. In each case a strip 162 is provided on the poster carriers, which has a roller 163 and openings 166 for the steel bar 160 in the upper and lower regions projecting beyond the poster carrier 160. The head part of a bar is shown enlarged in FIG. 10B.

Fig. 11 shows a particular form of a poster carrier, in which not a the entire area of the poster covering the web, but only above and below a with the poster 171 up or unwinding belt 172 is provided. A roller 173, which otherwise resembles that of window blinds, has a portion 174 with a smaller diameter than the portion provided for winding up the poster 171. This ensures that when unwinding the poster or the belt 172, the poster faster than the belt is released from the roller, so that the unwinding against a spring, not shown forces required by the belt 172 and a belt, not shown at the bottom of the Roller 173 be included.

Fig. 12 shows in two views an alternative to the arrangement shown in Fig. 10B on the head part of a bar. In this case, a T-shaped bearing part 181, in which two rollers 182, 183 are mounted, engages in a U-shaped bearing part

184, in which also two rollers 185, 186 are mounted. In the U-shaped bearing part 184 there is a through hole 1-87, through which a screw 188 passes, which is screwed into a threaded bore of the T-shaped bearing part 181. Between the head of the screw 188 and the U-shaped bearing part 184, a coil spring 189 is inserted, so that the rollers 182, 183,

185 and 186 are pressed onto the steel rod 157. With the arrangement shown in Fig. 12 in particular tilting of the bars when rolling up or rolling the posters is avoided.

FIG. 13 shows a fourth exemplary embodiment of a coupling device 191, with which one of three poster carriers each can be unrolled. For this purpose, an eyelet 194 is arranged on a strip 192 of the poster carrier 193, which engages in the movement of the coupling device 191 in the direction of the stored poster carrier in a corresponding recess 195 on the coupling device 191. Corresponding recesses 196, 197 are provided for the other poster carriers (not shown). Behind the poster carriers are bars 198, 199, 200 slidably arranged so that they release the respective recess 195, 196, 197 in a relaxed spring 201, 202, 203. Over the upper ends of the latch 198 to 200, a shaft 204 is arranged, at which in each case offset by 120 ° cams 205, 206, 207 are located.

For the shaft 204, a drive device may be provided, which is approximately as shown in FIG _. , 9 gear rack combination shown corresponds. With such a device, the shaft 204 is rotated by 120 ° when the coupling device 191 moves to that end position in which the poster carriers have their rest position. As a result of the rotation, the previously engaged poster carrier is released, while by lowering one of the other latches 198 to 200 another poster carrier is engaged and subsequently unrolled.

For the sake of simplicity, only one side of the coupling device 191 has been shown in FIG. If the coupling device of FIG. 13 for a

Change poster device is used, in which, as in Fig. 1, from both sides posters are rolled up or unrolled, the coupling device 191 is also provided on the other side with recesses, latches and a camshaft.

Claims

claims

1. Billboard device, wherein several posters applied to rolloartigen posters carriers are made visible successively and wherein the poster carriers are gripped by means of coupling devices having a rotatable body with at least one annular gap which is narrowed at the periphery of the rotatable body in each case for a portion of the circumference , and being provided on the Plaka.tträgern drivers, which engage in the annular gap and engage behind the constricted part in response to the rotational position of the rotatable body, characterized in that the rotatable body (26 to 36, 42 to 52) via a Freewheel (40; 41) with a gear (39; 55) is connected to a rack (38) is engaged, which is parallel to the direction of movement of the roller-blind poster carrier (21 to 25, 53) displaceable.

2. A billboard device according to claim 1, characterized in that two rotatable bodies (26 to 36, 42 to 52) are arranged side by side and each have a freewheel (40; 41) and a gear (39; 55) with the rack (38) are coupled (Fig. 2).

3. Change poster device according to claim 1, characterized in that in the region of a storage of the poster carrier a stop (37) is provided which is in operative connection with the rack (38) in such a way that the rack (38) is displaced when the coupling device carrying transport device in the Close to their final position comes rolled-up poster carrier.

4. billboard device, with several posters on rolloartigen posters applied successively made visible, characterized in that for releasable connection of the poster carrier (66) with a transport coupling devices (60 to 65) are provided, the at least one toggle (61 to 65) each Have poster support which perpendicular to the transport direction of the poster carrier (66) standing driver (69, 70) engages behind the respective poster carrier and in an inclined position between the drivers (69, 70) passes (Fig. 3).

5. A billboard device according to claim 4, characterized in that means for rotating the toggle (61 to 65) are provided when the transport device approaches its in the field of storage of the poster carrier (66) located end position.

6. billboard device, with several posters on rolloartigen posters applied successively made visible, characterized in that for the detachable connection of the poster carrier with a transport device at the outer edges of the poster carrier T-shaped strips (71, 72) are provided, which of the on Transporting device located grippers (73 to 76) can be engaged behind that the grippers (73 to 76) extend over a substantial part of the T-shaped rails, that the grippers consist of two gripper arms (73, 74, 75, 76), the discs (81, 82) provided with bevels (83, 84; 85, 86) are pressed against one another against a spring force (FIG. 4).

7. A billboard device according to claim 6, characterized in that in each case two grippers (73, 74, 75, 76) point in different directions of the transport device and that their gripper arms are mounted coaxially.

8. Billboard device, with several posters on Rolloartigen posters applied posters are made visible successively, characterized in that a transport device, which off the respective poster to be displayed or rolls up, by a arranged in the direction of movement spindle (98) is drivable and parallel to the spindle above and below the posters each a Fuhrungsstange for the transport device is provided, that the Fuhrungsstangen racks (104; 105), in which each a gear (110, 111) of the transport device engages, and that the gears are rotationally .verbunden connected (Fig. 5).

9. Billboard device, with several posters applied to rolloartigen posters posters are made visible in succession and wherein further from a rotatable or movable magazine each poster to be displayed can be brought into a transport plane, characterized in that at the outer edge of the poster carrier (95) transversely to the transport direction a rail (123) runs, at the ends of which hook-shaped drivers (93) are arranged, which run in the transport plane, and in that counterparts (91, 92) to the hook-shaped drivers (93) are arranged on the transport device (FIG. 5, FIG 6).

10. A billboard device according to claim 9, characterized in that the hook-shaped carrier (93) protrude when the poster carrier (95) from the magazine (97) rolled up.

11. A billboard device according to claim 9, characterized in that the hook-shaped carrier (93) or the counterparts (91; 92) of the hook-shaped carrier recesses, in which the counterparts (91; 92) or the driver (93) when rolling the poster carrier (95) intervene.

12. Bill poster device, wherein a plurality of posters mounted on rolloartigen posters are successively made visible and wherein the poster (126) at least on two opposite sides releasably connected to the poster carrier (95), wherein one side with respect to the rolling direction inside and the other side is located outside, characterized in that at least for attachment of the outer side of the poster (126) is provided a clamping rail (124) which is resiliently mounted on a parallel thereto with the poster carrier (95) rail (123) connected (Fig ).

13. Billboard device, wherein several posters applied to Rolloartigen posters carriers are successively visible and further wherein the poster carriers are mounted in rotatable magazines, characterized in that two poster carriers (132; 133) in the rotatable magazines (131) are mounted side by side such that they can be unrolled in parallel by a transport device (134) (FIG. 7).

14. Billboard device, with several posters on Rolloartigen posters applied successively made visible, characterized in that in each case two rotatable magazines are coupled via gears such that two poster carriers in parallel from

Clutch devices of a transport device are gripped and unrolled.

15. Bill poster device, wherein several posters applied to rolloartigen posters posters are made visible in succession and wherein the poster carriers are mounted in rotatable magazines, characterized in that the rotatable magazines are each connected to a gear (142) via a freewheel (143) and in that the toothed wheel (142) engages a rack (145) which is movable in the direction of transport of the poster carrier and has a stop (147) which is operatively connected to a transport device in such a way that when the transport device approaches an end position located in the region of the magazine Rack (145) is displaced against a spring force and a rotation of the magazine is effected (Fig. 9). -. • ■

16. Billboard device, with several posters on Rolloartigen posters applied posters are successively made visible, with several poster carriers are mounted offset so that unrolling takes place in adjacent levels, characterized in that the outer ends of the poster carrier (151 to 155), each with a bar (162) are provided that the strip (162) protrudes on the sides of the poster carrier (151 to 155) on the poster carrier and is guided by a respective extending in the direction of transport rail (Fig. 10).

17. A billboard device according to claim 16, characterized in that the rails are formed by tensioned steel rods (157 to 161).

18. A billboard device according to claim 16, characterized in that the strips at the ends are each provided with a roller (166) which is in engagement with the rails (157 to 161).

19. A billboard device according to claim 17, characterized in that the strips at the ends with four rollers (182, 183, 185, 186) are provided, which include in pairs the respective steel rod and are pressed by spring force on the steel bar.

20. Billboard device, with several posters on Rolloartigen posters applied posters are successively made visible, characterized in that for releasable connection of the poster carrier (193) with a transport device coupling devices (191) are provided, the at least one latch (198, 199, 200) each Have poster support which is movable behind a recess, and in that the recess on a poster carrier (193) located eyelet (194) is insertable. _, :