EP1360681A1

EP1360681A1 - Poster suspension device

Info

Publication number: EP1360681A1
Application number: EP02712747A
Authority: EP
Inventors: Michael Schöning
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-16
Filing date: 2002-02-06
Publication date: 2003-11-12
Anticipated expiration: 2022-02-06
Also published as: US20040064988A1; WO2002067233A1; ATE363115T1; DE50210196D1; EP1360681B1

Abstract

The invention relates to a poster suspension device comprising a poster sheet. Said poster sheet, while under longitudinal tension, can be displaced in a to and fro manner between rollers, which are arranged one above the other at a distance, and from roller to roller in a direction of transport. The poster sheet is comprised of at least two individual posters. The aim of the invention is to enable individual posters to be separated from the sheet or to be placed in the sheet. To this end, connecting means, which can be removed between the poster surfaces themselves as well as in their edge reinforcements, are provided between at least two individual posters that follow one another in the longitudinal direction of the poster sheet.

Description

Plakataufhängevorrichtung

Description:

The invention relates to a poster hanging device with between two rollers arranged at a distance one above the other - under longitudinal tension in the direction of transport from roller to roller - poster web that can be rolled back and forth with at least two individual posters that follow one another in the longitudinal direction of the web on a dividing line, the lateral longitudinal edges of the poster web extending in the direction of transport each have an edge reinforcement - essentially consisting of a web lying flat against the poster web and a piping on the outermost edge of the web - and the edge reinforcements in the area between the rollers - essentially extending from roller to roller - holding means as a side guide for the poster web for receiving in Poster web area are assigned transverse forces acting transversely to the direction of transport.

In general, the poster web is moved back and forth vertically in the aforementioned device. However, the invention is not limited to the vertical transport direction. On the one hand, the image or poster shown stretched between the rollers can be inclined against the vertical, on the other hand, the image movement in one direction obliquely to transversely to the vertical, i.e. also horizontal. If here and in the following only the design with vertical transport direction or vertically spanned image is explained or claimed, then the deviations from the vertical are also included.

The poster hanging device should be suitable for displaying a full size poster. At the same time, it should be possible to combine two or more individual poster images so that a poster web is created. This is to be rolled from one roller to the other roller and back in sections which make it possible to take note of the individual poster image. One then speaks of a poster changer.

If such a poster changer is to be installed outdoors, the entire arrangement is usually surrounded by a display case, which has a window on the viewing side, e.g. made of glass or clear plastic. A display case of this type is described in DE 295 10 670 U 1. If the visible area to be presented is of a certain size, e.g. 3x4 m, exceeds, it causes problems to transport the transparent windscreen to the installation site and to handle it there.

There are poster or poster materials that are so weatherproof that even if they were installed outdoors, a front pane of the described display case would not be required. Materials that are insensitive to moisture are generally suitable for this, e.g. Sheets of plastic, textiles, coated paper or metal foil, good practical results were achieved with vinyl sheets. In practice, the pane is usually still required if the poster web stretched between the two rollers is exposed not only to sun and rain, but also to wind or storms. Drafts in a hall can cause the poster web stretched between the rollers to flutter when the front window of the advertising display is missing.

DE 200 10 731 U1 describes a poster hanging device of the type specified at the beginning. The device has an upper and a lower roller. A poster web, which comprises several posters, is rolled back and forth under longitudinal tension between the rollers. This poster hanging device also includes holding means for applying a transverse tension to the poster web. This is to ensure that the poster web can withstand loads from gusts of wind and other weather influences and that it can be rolled up evenly without wrinkles. In the last-mentioned DE 200 10 731 U1, as a means of applying the transverse tension, it is proposed to provide the lateral longitudinal edges of the poster web with edge reinforcements - so-called piping - and to assign the reinforced edges to holding means, each with a groove extending from roller to roller. The flutes extend like pliers from the sides over the entire length of the visible poster picture over the piping of the reinforced edges. The groove is formed so that the piping is held in place when the poster web is placed under tensile load in the transverse direction. "Keder" are elastic edge reinforcements of a flat web, for example in the form of a cord or rail made of plastic or a spiral spring made of metal. The piping can be formed on a web attached to the web surface (on one or both sides of the web) In order to change posters, the reinforced edges in the grooves should slide along, which means that noticeable frictional forces have to be overcome when moving the poster web.

In order to overcome the frictional forces that occur when moving or in particular when starting (the start of the movement), EP 11 22 708 A2 proposes that the grooving of the holding means, which is continuous from roller to roller, be spaced apart from one another on each of the surfaces of the poster web to replace arranged guiding heads, wherein a guiding head facing a poster web surface is to be opposed by a guiding head on the opposite poster web surface, forming a pair of leading heads. This pair of guide heads should grip like a pair of pliers over the piping, grasp it and thereby tension the web in a direction transverse to the transport direction.

In practice it happens that a poster is inserted or a poster is to be eliminated in a prepared poster web. If you then do not want to reprint the web as a whole, you have to split it up at the relevant point. If necessary, the possibility must be created to reconnect the poster web to a continuous web after removing a single poster or for the purpose of inserting a single poster. It is very desirable to design the appropriate means for loosening or connecting so that the removal or insertion of a poster on site, so in wind and weather in a Free-standing poster changer, if possible by a single person. The object of the invention is to overcome these problems, in particular for the area of edge reinforcement.

The solution according to the invention is that releasable connecting means are provided on the dividing line between at least two individual posters in the longitudinal direction of the poster web, both between the poster surfaces and in their edge reinforcements, and that the respective piping continues along the connecting means. Preferably, a releasable connecting means of the respective edge reinforcements is provided along the dividing line at the same time, two end pieces of the edge reinforcement which abut against a longitudinal edge of the web, the sleeve having an external shape corresponding to that of the edge reinforcement with piping and which absorbs the longitudinal tensile force exerted on the edge reinforcement. The sleeve can also be called a clamp or clip. As a means of connecting the poster surfaces themselves, a type of zipper, a book fastener or a Velcro fastener is preferably provided on the dividing line. Some further improvements and refinements of the invention are specified in the subclaims.

Separation lines with the connecting means according to the invention can be provided at one or more points on the poster web. Such a dividing line is preferably inserted between two individual posters and at the beginning or at the end of the poster web or a sequence of poster images. The invention makes it possible to separate a single poster image from a web or to insert it into a finished web. This work can be done on site - in wind and weather - outdoors.

The releasable connecting means should be so stable both in the area of the web surface and in the area of the web edges that they can absorb the longitudinal forces exerted on the poster web. This applies above all to the edge reinforcements in the edge area of the poster web. At this point, a sleeve is provided according to the invention, which molds the abutting end pieces of the edge reinforcement. grips like a clamp from the long edge of the web. The term sleeve refers in particular to a covering which lies flat against the piping and web and which, as it were, engages like a clamp from the web edge on both web surfaces over the edge reinforcement and roughly reproduces its shape on its outer surface.

In order to ensure that the poster web can be tilted back and forth in the transport direction without (at the piping) and without annoying friction losses, the sleeve is also designed in such a way that it does not interfere with the smooth running of the poster web. While the edge reinforcement or the piping should consist of flexible, elastic and abrasion-resistant material that can be easily wound up on the rollers, the sleeve can be made of a material that is as smooth or form-fitting as possible on the edge reinforcement, especially on the piping itself, is concerned. The sleeve can, for example, be formed as a molded part made of polyurethane, exactly fitting for the overall edge reinforcement. If a conventional clip closure of the sleeve for fastening it on the edge reinforcement is not sufficient to absorb the tensile force exerted on the poster web (in the direction of transport), the sleeve can additionally, e.g. can be positively and / or non-positively connected to the edge reinforcement by means of bolts, rivets or screws or by toothing or the like running perpendicular to the web and web surfaces. The sleeve can also extend over a longer distance, possibly over the entire length of the poster web, so that there is no step at all at the respective dividing lines.

Rails with a C-shaped cross section can be provided as holding means within the scope of the invention, which grip over the piping and in which the gap width remaining with the C-shaped cross section is less than the thickness of the piping but greater than the thickness of the web. However, such a C-rail exerts considerable friction when moving the poster web. It is therefore preferred in the context of the present invention to form the holding means from individual rollers, for example ball or roller rollers, which are arranged at a distance from one another on the surfaces of the poster web or the keder web, preferably cylindrical rollers being provided in pairs opposite one another with respect to the web surface, whose roller axes can be approximately transverse to the longitudinal direction of the web and parallel to the poster web surface.

If the respective holding means, both the C-rails and the pairs of rollers, are to guide a poster web, the edge reinforcements of which have a single one of the described sleeves in the area of dividing lines at the web edges, the distance between the parts of the holding means which overlap the piping must be like be so large that the sleeve can slide into and through the holding means without hindrance. This can lead to the fact that the areas of the edge reinforcement can no longer be gripped sufficiently securely by the respective holding means without the sleeve. In this regard, the situation can become critical, particularly at the points where the areas without the piping socket are to enter the holding means (at the longitudinal end) thereof.

Since the poster web is to be spanned by the holding means with a certain transverse force, it is generally necessary to pull the poster web outwards at the respective longitudinal end of the holding means. Nevertheless, inserting the piping into the holding means is not difficult as long as the piping is thick enough in the direction perpendicular to the poster surface. However, this thickness of the piping also has disadvantages, because with increasing length of the poster web it makes it more difficult to wind the web on a roller because the winding diameter in the area of the edge reinforcement increases significantly faster than the winding diameter of the other web.

One could also think of thinning the edge reinforcement including the piping adjacent to the respective dividing line before applying the sleeve, for example by grinding or milling, so that the area with the sleeve would have approximately the same thickness as the main area without the sleeve. In practice, however, this idea cannot be transferred - above all for reasons of cost - because it required a specialist and would have to be carried out hands-free on a device that is generally high above the ground. In order to counter these problems, it is provided according to a further invention to adapt the holding means - with the piping thickness essentially unchanged - to the thickness of the sleeve which is fixedly mounted on the respective dividing line and perpendicular to the poster web surface, and to the insertion funnels at the longitudinal ends of the holding means facing the upper and lower rollers to be provided which absorb the lateral forces exerted by the poster web. Through the insertion funnel, the transverse force acting in the poster web is canceled before the welt runs into the respective holding means, so that a conventional welt, which could cause difficulties when threading into the holding means expanded due to the sleeve, for example by tilting and jamming, goes straight ahead is passed into the holding means. The dimensions of the piping and holding means can easily be selected such that a piping that has properly run into the holding means cannot be pulled out of the holding means “enlarged” because of the sleeve because a piping within the holding means is not - as at the entrance - can tilt.

According to yet another invention, at least one pair of oblique rollers that cross the sleeve like pliers is provided as the insertion funnel, the roller axes of which are inclined with respect to the poster web surface and the individual rollers of which are supported on the piping. This solution is particularly advantageous in connection with the aforementioned holding means consisting of pairs of rollers. In this case, rollers with a cylindrical running surface with respect to the roller axis are preferred. If the rollers are inclined with respect to the web surface, the rollers touch the web surface or the web of edge reinforcement or sleeve on the one hand and the piping on the other hand essentially only with one cylinder edge, that is to say essentially only along a line and accordingly with relatively little friction. The oblique roller pairs can therefore be arranged with a smaller mutual distance than the other roller pairs, the roller axes and thus possibly cylindrical running surfaces should preferably be approximately parallel to the track surface (with the axis transverse to the direction of transport). Because, for example, the mutual distance between their individual rolls is preferably only 0.3 mm smaller, the pairs of oblique rolls as insertion funnels are able to hold the poster web in the inlet area of the respective holding means without the risk of jamming. tens to grasp and pull apart in the transverse direction so that the respective piping can run straight into the holding means.

In general, a pair of inclined rollers is sufficient as an inlet funnel at each longitudinal end of the holding means. However, it is preferred if at least two pairs of oblique rollers are provided on the longitudinal ends of the holding means, the running surfaces of which simultaneously face the web and the piping. These pairs of oblique rollers are then able to tension the latter in the transverse direction in the inlet area of the holding means even in the event of strong winds, so that the piping can run into the holding means without tilting.

Details of the invention are explained on the basis of the schematic representation of an exemplary embodiment. Show it:

Fig. 1 shows a section perpendicular to the poster web through a

Edge enhancement;

2 shows the top view of an edge region of the poster web according to FIG.

1.

3 shows a plan view of a poster web between two holding means equipped with pairs of rollers; and

Fig. 4 u. 5 cuts along lines IV-IV and V-V of Fig. 3

In FIG. 1, an edge reinforcement applied to an edge 2 on the poster web 1 is designated as a whole by 3. The edge reinforcement 3 consists of a band-shaped strip or web 4 and the actual bead-shaped piping 5. The web 4 can - as drawn - be provided on a poster surface but also on both poster surfaces. 2 shows two individual posters 6 and 7, which are under tension in the longitudinal direction 8 of the web and are connected to one another by a releasable connecting means, preferably a zipper 9.

According to FIGS. 1 and 2, a sleeve, generally designated 11, is pushed or clamped like pliers over the parts 3a and 3b of the edge reinforcement 3 which abut one another on the dividing line 10 of the posters 6 and 7. The sleeve is shaped so that it surrounds the edge reinforcement 3 (3a, 3b) as tightly as possible, in all parts. The sleeve 11 is intended to depict the outer shape of the beaded welt 5 itself as precisely as possible on its outer surface. In the exemplary embodiment, the piping 5 has approximately a semi-cylindrical shape 12 on the outer edge facing away from the surface of the poster web 1, while it has straight supporting or holding surfaces 13 running approximately perpendicular to the poster surface. In particular, this holding surface 13 is to be imaged on the outer surface of the sleeve 11.

The piping 5 is supported on one or both surfaces 13 on the holding means mentioned at the beginning. Rollers 14 are shown as holding means, the axes 15 of which run parallel to the surface of the poster web 1 and perpendicular to the web longitudinal direction 8. The guidance of the poster web 1 with the aid of the edge reinforcement 3 can be improved if a cusp wall 16 extends approximately parallel to the holding surface 13 and excludes a movement of the edge reinforcement 3 relative to the roller 14 in the direction of the axis 15.

For fastening the sleeve 11 to the edge reinforcements 3a and b abutting a dividing line 10, connecting elements 17 and 18 are preferably provided, which are arranged at a distance from the cylindrical running surface 19 of the roller 14 in the exemplary embodiment. The connecting elements 17 and 18 can be bolts, for example, which extend through the two surfaces of the sleeve 11 shown in FIG. 1 and the band-shaped strips 14 clamped in between.

The mutual distance between the treads 19 of the pair of rollers 14 of FIG. 1 should be so large that the web 4 fits smoothly and without disruptive friction between the treads 19 even in the area in which the sleeve 11 is placed over the web 4. In one embodiment, the web 4 between the running surfaces 19 had a thickness a = 2 mm (measured perpendicular to the web surface). Due to the sleeve 11 placed over it, the corresponding web thickness was increased to A = 3.6 mm. In the area of the poster web in which no sleeve 11 is placed around the edge reinforcement 3, there is therefore a freedom of movement of 1.6 mm for the web 4 between the running surfaces 19 of the rollers 14 (in addition to the usual tolerance). tolerance). In the exemplary embodiment, this additional game does not interfere if the piping 5 is properly threaded between the rollers 14 and the piping holding surface 13 rises perpendicular to the web 4 by more than 1.6 mm. When threading, however, the piping 5 (without sleeve 11) between the running surfaces 19 of the rollers 14 can sometimes jam and jam.

In order to prevent tilting, it is provided within the scope of the further invention to place so-called oblique rollers 22 or pairs of oblique rollers 22 in front of the longitudinal ends 20 of the holding means or pairs of rollers 14, which are designated by 21, the transverse forces acting in the transverse direction 23 of the poster web 1 catch so far that the respective piping 5 at the longitudinal end 20 is to be threaded straight into the holding means 21, that is, behind the holding surfaces 13.

4 and 5 show sectional views along the lines IV-IV and VV of Fig. 3. Specifically in Fig. 5 is an embodiment of pairs of oblique rollers 22 which with the one cylindrical edge 24 of their tread 19 on the web 4 or on the sleeve lying thereon 11 roll off and are supported with the other roller edge 25 on the holding surface 13 of the bare piping 5 or clad with the sleeve 11.

In the context of the described embodiment of the invention, the holding means 21 are adapted to the web thickness A, measured perpendicular to the poster web surface, of the sleeve 11 fixedly mounted on the respective dividing line 10. At the same time, insertion funnels, preferably in the form of pairs of inclined rollers 22, are provided on the longitudinal ends 20 of the holding means facing the upper and lower rollers (in FIG. 3, the lower roller 26 is shown), which the transverse forces exerted by the poster web 1 (forces in Transverse direction 23) record. If necessary, the pairs of oblique rollers 22 should overlap the edge reinforcements like pliers - like thumb and index finger -, the roller axes 27 of the oblique rollers 22 being inclined with respect to the surface of the poster web and the individual oblique rollers 22 simultaneously on the web 4 and on the piping 5 (with or without a sleeve 11 placed over it). The projection of the axes 27 of the oblique rollers 22 onto the tensioned poster web surface should be approximately parallel to the transverse direction 23. On average, perpendicular to the web surface, the distance between the web surface and the axis should decrease along the latter, starting from the web edge - that is, from the outside inwards. The axes should therefore - at an angle open to the web edge - be inclined from the web edge to the web surface. Preferably, the axes 27 of the upper and lower individual rollers 22 of each pair of oblique rollers should be inclined at the same angle of the order of 30 to 60 °, preferably approximately 45 °, against the lower and upper surface of the web so that the running surfaces of the oblique rollers 22 oppose the piping 5 Push the lateral force outwards, ie tighten the poster web 1 in the transverse direction 23.

In general, a single pair of oblique rollers is sufficient at each longitudinal end 20 of the holding means 21. For example, if strong transverse forces can occur, it may be advantageous to provide two or more pairs of oblique rollers at the longitudinal ends 20 of the holding means. The pairs of oblique rollers can then be positioned approximately in a straight continuation of the holding means. However, it is also within the scope of the invention to move the second, third, etc. pair of oblique rollers counter to the transverse direction 23 inwards, so that the piping 5 is gradually pulled outwards as it passes the pairs of oblique rollers and can finally run straight into the holding means.

LIST OF REFERENCE NUMBERS

1 = poster web

2 = edge (1)

3 = edge reinforcement

4 = ribbon-shaped web

5 = piping

6.7 = single poster

8 = web longitudinal direction

9 = zipper

10 = dividing line

11 = socket

12 = semi-cylindrical shape

13 = holding surface

14 = roll

15 = axis (14)

16 = Höckerwall

17.18 = connecting element

19 = tread

20 = longitudinal end

21 = holding means

22 = inclined roller

23 = transverse direction

24, 25 = edges of the tread 19

26 = lower roller

27 = axis (22)

Claims

claims:

1. Poster hanging device with two rollers (26) arranged one above the other at a distance - under longitudinal tension in the direction of transport from roller to roller - poster web (1) that can be rolled back and forth with at least two individual posters in the web longitudinal direction (8) on a dividing line (10) 6, 7), the lateral longitudinal edges of the poster surfaces extending in the transport direction each having an edge reinforcement (3) - essentially consisting of a web (4) lying flat against the poster web and a piping (5) at the edge of the web - and the edge reinforcements in The area between the rollers - essentially extending from roller to roller - is assigned holding means (21) as a side guide of the poster web for receiving transverse forces acting transversely to the direction of transport in the poster web surface, characterized in that at the dividing line (10) between two in the longitudinal direction ( 8) the poster web (1) successive single posters (6, 7) both z between the poster web surfaces themselves and in their edge reinforcements (3a, 3b) releasable connecting means (9, 11) are provided and that the respective piping (5) continues along the connecting means.

2. Poster hanging device according to claim 1, characterized in that as a releasable connecting means of the respective edge reinforcements (3) along the dividing line (10) at the same time two end pieces (3a, 3b) of the edge reinforcement form-fitting from the longitudinal edge of the web and abutting on a longitudinal edge (2) forth - including the latter - overlapping sleeve (11), the outer shape of which corresponds to that of the edge reinforcement (3), is provided.

3. poster hanging device according to claim 1 or 2, characterized in that the sleeve (11) with the aid of a clip connection, e.g. with the aid of bolts (17, 18) or the like running perpendicular to the poster web surface, is coupled to the edge reinforcement (3, 4).

4. poster hanging device according to one or more of claims 1 to 3, characterized in that a zipper (9) is provided as a releasable connecting means of the poster surfaces (6, 7).

5. poster hanging device according to at least one of claims 1 to 4, characterized in that the holding means (21) to the in the area of the web (4) perpendicular to the poster web area measured thickness (A) of the sleeve (10) firmly mounted on the respective dividing line ( 11) are adapted and that at the longitudinal ends (20) of the holding means (21) facing the upper and lower rollers (26) there are insertion funnels which absorb the transverse forces emanating from the web.

6. poster hanging device according to claim 5, characterized in that at least one the edge reinforcement (3) and optionally the sleeve (11) cross-wrench pair of inclined rollers (22) is provided as the insertion funnel, the roller axes (27) are inclined with respect to the poster web surface and the Single rollers (27) with the tread (19) are supported on the web (4) and piping (5) at the same time.

7. poster hanging device according to claim 6, characterized in that the axes (27) of the lower and upper individual rollers (22) of a pair of oblique rollers with the same, open to the web edge angle of the order of 30 to 60 °, preferably about 45 °, against the lower and upper web surface are inclined so that the running surfaces (19) of the rollers (22) press the piping (5) against the transverse force outwards, ie tighten the poster web (1) in the transverse direction (23).

8. poster hanging device according to claim 7 or 8, characterized in that the holding means (21) from individual on the surfaces of the poster web (1) arranged at a distance from one another and with respect to the web surface in pairs opposite guide rollers (14), the roller axes of which are approximately parallel to the poster web surface stand.

9. poster hanging device according to claim 8, characterized in that at least two oblique roller pairs (22) at each longitudinal end (20) of the shark Temmittel (21) are provided in an approximately straight continuation of the idler pairs.