FR2699313A1 - Billboard with two display faces - has driven rotary bars made from aluminium@ extrusions with stainless steel edges, to which poster can be pasted and then cut into strips - Google Patents

Abstract

The billboard consists of a frame (1) surrounding a series of rotary bars (2) made from rectangular-section aluminium extrusions with stainless steel strips rivetted to their edges so that they project on one or both sides. The bars are rotated by means of a drive and transmission system enclosed in the frame. Each rotary bar has end spindles set in bearings and with sprockets at one end, connected by chains to adjacent bars, and with one bar connected to the drive motor. Once a poster has been stuck to one face of the bars it is cut along vertical lines between the edges of the bars. This enables the bars to rotate, carrying the poster strips, so that another poster can be displayed on the opposite side. USE/ADVANTAGE - Allows normal paper posters to be used, pasted one on top of another without having to clean the bars each time the poster is changed.

Description

 The present invention relates to a traditional display device allowing on the spot: the collage of the poster, the cutting of the wet paper and the superimposition of several posters on a panel divided by several rotating faces composing at each rotation a complete image.

 The various rotating face devices currently on the market do not allow on-site traditional display, cutting and stacking of several posters. This operation is only carried out after dismantling the different screens or elements, cleaning each element in a specially designed workshop. The cutting and the separation of the various elements composing a complete image are only carried out after the complete drying of the poster, which causes a great loss of time and makes the exploitation of these devices impossible with the traditional paper display. . Thus these panels are practically all used in painting for long advertising conservations.

 This device according to the invention overcomes this drawback because it allows, according to a first characteristic, to be displayed on site without any element being dismantled. The various rotating parts thus designed can receive several posters pasted on each other before cleaning without the weather taking them off. In addition, these rotary elements are provided with lamezer on both sides allowing using a manual cutting device accompanying the device to easily and always divide the poster still wet with the glue between the components thus a complete image, saving time. This cutting device accompanying the device is protected by a different patent filing.

 According to: particular embodiments: The external frame of the assembly can be made either of galvanized steel or of aluminum.

-The rotary elements can be made either from galvanized steel or aluminum.

-The rotary elements comprise on each side a stainless steel strip which can be fixed in different ways riveted, glued or screwed.

-The device presented has only two rotating faces composing at each rotation a complete image divided by the number of display elements.

The bearings of the drive system can be made either of steel or of aluminum.

The accompanying drawings illustrate the invention:
Figure 1 shows a front view of the assembly, revealing in section the drive system.

Figure 2 shows the four parts forming the frame of the device
LA ïiguEë 3 represents the transmission system by chains and sprockets as well as the motorization '
Figure 4 shows the fixed rotating elements of the device provided with their boxes.

FIG. 5 represents a variant of rotary elements with removable faces.

 With reference to these drawings, the device comprises in the upper part (11) of the frame (1) the drive system (6) as well as the motorization (3) and the hubs (5). All this technical part being placed at the top of the assembly to avoid any contact with the glue when the device is displayed. The upper part (11) of the frame (1) is composed of a rectangular profile open on the top drilled in such a way (10) along its length so that it can receive the different bearings (22) while letting the shafts (23) to allow transmission to the rotating elements (2). The upper frame (11) is provided with a cover (8) made of folded sheet metal to allow accessibility to the drive system (6). In the left end of this upper part (11) is welded the plate (20) intended to receive the motor (17) held by the screws (18).

 The lateral parts (12 and 13) are in rectangular tubular profile provided at each closed end with crimped nuts (36) which allow the assembly of the frame (1) using screws. The part (12) of the frame (1) is open at the end (9) to allow the passage of the motor (17), this part (12) has a cover (4) in its lower part intended to receive the system of motorization delay and control (3).

 The lower part (16) of the rectangular tubular profile frame is pierced at the desired inter-axis (15) so as to receive the various crimped nuts (36) where the axes (14) of the lower pivots (35) are fixed.

 In the embodiment according to Figure (4) the display elements (37) in rectangular aluminum profile (40) are provided on each side with a stainless steel strip (42) fixed with rivets (41) and bonding exceeding the profile only on one side for a single-sided display device, the second side being paintable. For a double-sided display device the strip (42) projects beyond the profile (40) on both sides.

 In the embodiment according to Figure (5) the display elements with removable supports are composed of a central support (43) pierced right through with symmetrical holes (47) where by a movement from top to bottom come s '' hang the poster supports (44 and 45) fitted with claws (46) welded to the back of the supports. The supports (45) are made of stainless steel folded in one piece. The supports (44) are made of galvanized steel.

 All the aluminum profiles of the display elements (40 and 43) are provided at the lower end (39) with a ring (34) pierced in the center in resistant plastic material bonded and integral with the element. In the center of the upper part of these profiles is glued a plastic ring having an inner square (27).

This assembly thus formed makes it possible to fit the element into the square of the shaft (23) and by a downward movement, to engage the lower ring in the axis (35) forming the lower pivot.

 In the embodiment according to Figure (3) presenting the motorization and the transmission system, the motor (17) is provided with a speed reducer and an immediate stop brake incorporated therein being of sufficient power to drive the assembly. The drive pinion (19) allows the transmission of said power via the drive chain (21) to the pinion (25), the latter being fixed on the shaft (23). The pinion (23) is triple and with removable hubs allowing the pinion to be tightened on the shaft (23) using the clamping screw (24). The pinion is only used at both ends, the central pinion used to separate the two bracelet chains (32) sufficiently.

 The drive chain (21) transmits the power from the motor to the pinion (25) which in turn transmits said power to it via the intermediate chain link (32) to the next pinion and so on.

 This movement allows the shafts (23) to make a half-turn 180 in one direction or in Ikàutre stopped by the limit switch contact with rollers (31). An electronic stop time control restarts the engine after the time necessary for the advertisement passing over the assembly to be read.

 One of the drive shafts (28) is longer. On its upper part is fixed with a screw (29), the cam (30) which corresponds with the roller limit switch.

 The bearings (22) in cylindrical steel or aluminum according to design are fixed to the upper part of the frame (11) in Figure 2 (by means of three tabs forming part of their assembly held by the screws (33). 22)) are designed in such a way that they can receive two ball bearings (26) which allow the shaft (23) to remain in the axis while being maintained only in its central part.

 The lower end of the shafts (23) is machined so as to form a square over a desired length so that the upper ring (27) of the display elements engages in this square.

 By way of nonlimiting example, the device has dimensions of the order of 4 meters long by 3 meters high and 12 centimeters thick.

 The device according to the invention is intended for displaying t its traditional paper.

Claims (4)

 1) Display device with rotary elements characterized in that it comprises the display supports (37) in rectangular aluminum profile provided on each side with stainless steel strips (42) fixed with rivets (41) and bonding exceeding the profile (40) on one side or both sides of the displayable surface allowing the display on site, the superposition of several posters glued on one another as well as the cut. These elements are driven by the motorization (3) and transmission (6) group.  2) Device according to claim (1) characterized in that the poster supports thus designed (45 and 46) can be removable, the central support (43) being pierced with symmetrical squares (47) which can receive the claws ( 46) welded to the back of the removable display supports in a folded piece of stainless steel or steel (45 and 44).  3) Device according to., Claim (1) characterized by its transmission system (6) which can be accessed from above thanks to the bearings (22) provided with bearings (26) holding the shaft (23) through the center leaving its two free ends. The upper end of the shaft (23) where the triple pinion with removable hubs (25) is fixed. This internal hub of the pinion is provided with a clamp (24) allowing the rotation of the shaft (23). The lower end of the shaft (23) is square to allow the upper part of the display element (37) fitted with its ring (27) to be engaged.  !  4) Drive device (3) according to claims (1) and claims (3) characterized by the transmission (6) by chains (32) and pinions with removable hubs (25), the motor pinion (19) transmits the power of the motor (17) via the drive chain (21) to the fixed triple sprocket (25) whose sprockets placed at the two ends alone will serve, the central sprocket serving for the separation of the wrist chains (32) allowing the transmission of the movement from one tree (23) to the other by this fact the elements (2) will rotate 180 revealing a second advertising image divided by the number of elements (2).