ES2235308T3 - CONTROL MECHANISM, PARTICULARLY FOR INFORMATION EXHIBITORS WITH INTERCHANGEABLE PLATES. - Google Patents

Abstract

THE INVENTION REFERS TO A CONTROL MECHANISM, PARTICULARLY FOR INFORMATION VISUALIZATION DEVICES WITH INTERCHANGEABLE PLATES, WHICH IS PROVIDED WITH A TOP PLATE SUPPORT CHARGER (2) AND A LOWER PLATE SUPPORT CHARGER, 3) ONE OF THE PLATE SUPPORT CHARGERS IS PROVIDED WITH A RESPECTIVE CONTROL MECHANISM, INCLUDING SUCH CONTROL MECHANISM A HITCH ELEMENT (5) HANDLED BY A FIRST MEANS OF OPERATION (6), FOR THE TRAIL OF A PLATE (4) WHILE THIS WINDING AND OF A PLATE (4) WHILE IT IS UNWINDED, AT LEAST ONE FIRST MICROCHITCH (8) PROVIDED THROUGH THE VERTICAL ROAD OF SUCH HITCH ELEMENT (6) CONTROLLING THE STOP OF THE FIRST HALF OF OPERATION (6), A WHEEL (10), WHICH SPINS THROUGH SUCH OPERATING MEDIA AND THAT IS PROVIDED WITH A NUMBER OF EXCENTRIC PERIPHERAL SURFACES (11), SUBSTANTIALLY EQUIDISTANT, AND IN NUMBER CORRESPONDING TO THE NUMBER OF PLATES (4) PROVIDED WAVES IN THE RESPECTIVE PLATE SUPPORT CHARGER (2, 3), AT LEAST A SECOND MICROCHITCH (12) INTERACTING WITH SUCH EXCENTRIC SURFACES (11), PROVIDING A PRE-SCHEDULED CONTROL MEDIUM, TO DETERMINE THE MOVEMENT OF THE RIDING PASS ( 10) THAT IT HAS THE EXCENTRIC SURFACES IN ONE ADDRESS, TO RELEASE THE WINDING PLATE (4) UNTIL HITCHING THE FIRST EXCENTRIC SURFACE (11) WITH SUCH SECOND MICRO-SWITCH (12), PERFORMING THE MOVEMENT OF THE SUCH WHEEL (OP) IN THE DIRECTION WITH A SUFFICIENT NUMBER OF STEPS TO HIT THE SAME WITH SUCH SECOND MICROCONMUTADOR (12), CORRESPONDING THE EXCENTRIC SURFACE (11) TO THE NEXT PLATE (4) THAT IS GOING TO BE SHOWN, BEING THE SAID STOP SECOND AND THE MIDDLE OF OPERATION OF THE FIRST MEANS OF OPERATION (6) IN THE OPPOSITE ADDRESS WITH REGARD TO THE PRECEDENT.

Description

Control mechanism, in particular for information displays with interchangeable plates.

The present invention relates to a mechanism control, in particular for information displays with plates interchangeable

More specifically, the invention relates to a mechanism that allows the change of the plates in a exhibitor of the previous type precisely and accurately.

As is known, in recent years it has considerable dissemination of information displays took place that allow the message to be changed, particularly in the sector advertising

A first type of exhibitor is the one that provides different horizontal elements with a cross section triangular, which can rotate around its horizontal axis, such way that synchronously turning the different faces, it is possible modify the message visible to the public according to a sequence timed preset.

Obviously, this type of device is quite limiting, since the number of messages that can be seen is limited to three, and can be seen according to a rigid sequence.

In addition, it is difficult to replace messages, since that the complete replacement of the viewer device is necessary.

A second type of display stand for images different already known and available in the market is the one that includes a sheet rolled in a roll and in which different are offered messages in sequence.

In this case, if the number of messages is limited only for the length of the sheet and for the dimensions of the device, it is clear that there are considerable limitations to The display sequence. In fact, the sequence is rigidly restricted to the order by which the different messages on the sheet, so that they cannot be proposed according to a casual order.

In addition, the entire blade must always be replaced. To replace the messages.

In view of the above, in EP-A-O 649 554 assigned to Applicant, an innovative solution for a display of information to solve all the problems according to the prior art

In particular, the solution described and claimed allows to provide a high number of different messages according to a casual sequence that can be replaced individually.

FR-A-2716 740 and US-A2195249 describe solutions that can be consider as relevant background regarding the independent claim of the present application.

These results are obtained, as you can deduce from claim 1 of EP-A-O 649 554, by an exhibitor of information with interchangeable plates, including at least one plate loader provided with means to remove said n-ths plates; means for grabbing the plate to be displayed; and means for put it in a viewing position and put it back in a deposit, so these plates are interchangeable selectively, said chargers are detachably coupled to the display, so that they can be replaced by others containing different plates, in which said chargers have a movement staggered, with a number of steps corresponding to the number of plates provided, and in which the movement is obtained by a stepper motor controlled by a microprocessor preprogrammed

Now, the Applicant has made a solution which allows to operate an exhibitor that has the characteristics described in EP-A-O 649 554 so Even more precise and reliable.

Obviously, the solution according to the present invention can also be used for different devices with with respect to the one indicated in the European patent indicated above, which has The same problems.

Therefore, a specific object of this invention is a control mechanism, particularly for exhibitors of information with interchangeable message sheets provided with a top message sheet holder charger and a charger lower message sheet support, each magazine being provided message sheet support of a respective control mechanism characterized in that it includes a hitch element that moves along a vertical path between said two chargers and that is put into operation by first means of operation to put the message sheets in a position of display and to put those message sheets back in the charger when not displayed; at least a first microswitch arranged along the viewing path vertical of said engagement element that interacts with said hooking element and controls the stop of said first means of operation; a pulley system located on the axle of the loader moved by a few seconds of operation and controlled by some preprogrammed control means; including said pulley system a wheel provided with a number of peripheral surfaces substantially equidistant eccentrics corresponding to the number of display sheets; and at least a second microswitch which cooperates with eccentric surfaces; so the means of Preprogrammed controls determine the pitch of said wheel so that the eccentric surfaces look in one direction to release the display sheet, and so the movement of said wheel it is inverted until the eccentric surface corresponding to a different message sheet to display interacts with the second microswitch that for the second means of operation that operate the pulley system and starts the first means of operation that put the new message sheet in the position of display.

Preferably, according to the invention, said hitch element has two different interference zones with said first microswitch, determining the first interference the slowdown of said first means of operation and determining the second interference the stop of said first operating means and starting said second means of operation.

Always according to the invention, said element of hitch provides an interference zone, being arranged another microswitch aligned vertically with said at least first microswitch, determining the first microswitch the slowdown of said first means of operation and determining the additional microswitch the stop of said first means of operation and startup of said second means of operation.

Furthermore, according to the invention, said seconds operating means operate a wheel that rotates through a coupling of pulley with a drive shaft and a drive belt between said wheel and said pulley.

Preferably, according to the invention, it can be disposing idle wheels to tension said belt transmission.

Still according to the invention, a mechanical limit switch for movement in any direction of said wheel with eccentric surfaces.

Preferably, according to the invention, said mechanical limit switch provides a mobile slide in a substantially transverse direction, pushed in a first direction by the interaction of a shaped tongue that has a pin, provided on the same slide, corresponding number from pins to the number of eccentric surfaces, up to interference with another microswitch, arranged substantially aligned with said second microswitch, delimiting the race in this direction for a mechanical stop, and returning, in the opposite direction, after the investment of the management of pulley rotation with eccentric surfaces, by means of elastic return.

Always according to the invention, the movements of said first and second operating means are controlled by programmable electronic control means.

The present invention will now be described, with illustrative but not limiting purposes, according to their realizations preferred, with special reference to the figures in the drawings annexes, where:

Figure 1 shows a front view of a display with interchangeable plates provided with a First embodiment of the mechanism according to the invention.

Figure 2 shows a side view partially cut from the mechanism of figure 1.

Figure 3 shows a side view partially cut from a second embodiment of the mechanism according to the invention.

And Figure 3 shows a detail of the mechanism of Figure 3

With reference first to figures 1 and 2 of the attached drawings, an image display 1 with plates is represented interchangeable

As already mentioned, the invention is describe with special reference to an image display with interchangeable plates, but it is clear that the mechanism according to the invention can also be adopted in a different type of device.

Image display 1 includes two chargers 2 and 3, respectively upper and lower, supporting each four rolled plates 4. Obviously the number of plates 4 It can also be different.

Said exhibitor also provides a mechanism drag 5 to which a bottom loader plate 3 and a plate 4 of the upper loader 2, which are respectively exposed and wrap around the charger again and vice versa.

When plate 4 to be displayed is removed completely from its roll, the hitch mechanism 5 must engage the top loader 2 or bottom loader 3 plate that It will have to be put on display later.

The movement of the two plates 4 hooked by The mechanism 5 is controlled by the motor 6.

A reinforcing element 7 is arranged behind for each plate 4.

As for the hitch and release device from plate 4 to mechanism 5, it is the subject of a patent application parallel.

The choice of plate 4 to be displayed is controlled by a preprogrammed microprocessor, not shown, allowing in this way have the possibility of casual exposure before indicated.

However, exhibitor 1 must provide a mechanism that allows to release the plate 4 previously visualized, in the position in the free charger 2 or 3 and thus turning the charger the enough angle to be able to put the plate set 4 in exposition.

In fact, it is not certain that plate 4 will show be the following in charger 2 or 3, so that in the case shown in the figure would be sufficient a rotation of 90 °, or different in case the number of plates arranged 4 is different.

The mechanism according to the invention is arranged symmetrically for top loader 2 and for loader lower 3, in the manner to be described only with reference to one of the two, the same number of reference.

Laterally, along the display 1 arranged a microswitch 8 that interferes with said mechanism of hook 5 of the plates 4.

Throughout the upward or downward run of the mechanism 5 there is a double interference with the microswitch 8: the first sends a slowdown control to the motor 6, since it indicates the approach to the limit switch, the second determining a stop control of the same engine 6.

A 2 or 3 magazine shaft has a pulley 10 out of the frame of the display 1, having said peripherally pulley four eccentric surfaces 11 (or in in any case a number corresponding to the number of plates 4 provided in charger 2 or 3) suitable for interacting with a second microswitch 12.

Said pulley 10 is rotated by a belt toothed 13 passing between two crazy wheels 14, a second pulley 15, driven by an engine (not shown) always controlled by said microprocessor.

After the microswitch signal of Stop 8 of engine 6, the microprocessor will rotate the pulley 10 90º, to release plate 4 shown above, until the surface Following the pulley interferes with the microswitch 12.

Now the rotation of the pulley 10 is reversed, causing the pulley to rotate 90º (or 180º or 270º according to the control that microprocessor drift) to hook a different plate 4 to to show.

The rotation will occur until the surface corresponding eccentric pulley 10 interferes with the microswitch, and then the motor that operates pulley 15 stops and motor 6 is activated, which drags the displayed plates 4.

Turning now to describe the solution shown in Figures 3 and 4, the same reference number will be used for the corresponding parts.

As you can see, this solution provides a mechanical limit switch 16 for pulley movement 10 provided with eccentric surfaces 11.

The mechanical limit switch 16 is transversely mobile, until it cooperates with a microswitch 17, at the bottom arranged aligned with said switch of limit 12, so that it determines the inversion of the rotation of the pulley 10, once the appropriate eccentric surface 11 is puts to interact with microswitch 12.

At the transverse stroke of the mechanical switch of limit 16 opposes spring 18.

In addition, limit switch 16 provides a shaped tongue 19 that interacts with pins 20 arranged in pulley 10, deflected correspondingly to the eccentric surfaces 11.

Looking now at figure 4, when the pulley turn in a clockwise direction, pin 20 acts in the straight surface of tongue 19, pushing the switch limit 16 to the right, until it interacts with the microswitch 17. The stroke of microswitch 16 is limited in any case by the pin 21 inside the slot 22 of the limit switch 16.

The microswitch 17 determines the inversion of the pulley movement 10, which will now turn in one direction towards left, putting the next pin 20 beyond the tab 19, sliding along the inclined surface of the tab 19, to properly engage the next plate.

In the solution shown in Figures 3 and 4, the drag mechanism 5 has a single interference surface, in this case two different microswitches, respectively 8 and 23 planned, for slowing down and stopping it mechanism.

Obviously, such a solution can also be obtain in the embodiment of figures 1 and 2, and also the solution that has a single microswitch 8 can be provided in the embodiment represented in figures 3 and 4.

Claims (9)

1. Control mechanism, in particular for information displays (1) with interchangeable message sheets provided with an upper message sheet carrier charger (2) and a lower message sheet carrier charger (3), being provided each message sheet support charger (2, 3) of a respective control mechanism characterized in that it includes a hitch element (5) that travels along a vertical path between said two chargers (2, 3) and that it is put into operation by first operating means (6) to place the message sheets (4) in a display position and to put said message sheets (4) back in the magazine when they are not displayed; at least a first microswitch (8) disposed along the vertical display path of said coupling element (5) that interacts with said coupling element and controls the stop of said first operating means (6); a pulley system (10) located on the axle of the loader moved by a second operating means and controlled by preprogrammed control means; said pulley system including a wheel (14) provided with a number of substantially equidistant eccentric peripheral surfaces (11) corresponding to the number of display sheets (4); and at least a second microswitch (17) cooperating with eccentric surfaces (11); whereby the preprogrammed control means determine the passage of said wheel (14) so that the eccentric surfaces (11) look in one direction to release the display sheet (4), and so that the movement of said wheel ( 11) is reversed until the eccentric surface (11) corresponding to a different message sheet (4) to be displayed interacts with the second microswitch (17) than for the second operating means operating the pulley system and starting the first means of operation that put the new message sheet in viewing position. 2. Control mechanism according to claim 1, characterized in that said engagement element has two different interference zones with said first microswitch, the first interference determining the slowdown of said first operating means and determining the second interference the stop of said first means of operation and starting of said second means of operation. 3. Control mechanism according to claim 1, characterized in that said engagement element provides an interference zone, another microswitch arranged vertically aligned with said at least first microswitch, the first microswitch determining the slowdown of said first operating means and determining the additional microswitch stopping said first operating means and starting said second operating means. 4. Control mechanism according to one of the preceding claims, characterized in that said second operating means operate a wheel that rotates by a pulley coupling with a drive shaft and a transmission belt between said wheel and said pulley. 5. Control mechanism according to one of the preceding claims, characterized in that idler wheels are arranged for tensioning said transmission belt. 6. Control mechanism according to one of the preceding claims, characterized in that a mechanical limit switch is provided for movement in any direction of said wheel with eccentric surfaces. 7. Control mechanism according to claim 7, characterized in that said mechanical limit switch provides a mobile slide in a substantially transverse direction, pushed in a first direction by the interaction of a shaped tongue having a pin, provided in the same slide, the number of pins corresponding to the number of eccentric surfaces, up to the interference with another microswitch, arranged substantially aligned with said second microswitch, the stroke being delimited in this direction by a mechanical stop, and turning, in the opposite direction, after the inversion of the direction of rotation of the pulley with eccentric surfaces, by elastic return means. 8. Control mechanism according to one of the preceding claims, characterized in that said wheel has 3 or 4 eccentric eccentric surfaces. 9. Control mechanism according to one of the preceding claims, characterized in that the movements of said first and second operating means are controlled by programmable electronic control means.