EP0877352B1 - Control mechanism, particularly for information displayers with interchangeable boards - Google Patents
Control mechanism, particularly for information displayers with interchangeable boards Download PDFInfo
- Publication number
- EP0877352B1 EP0877352B1 EP98830274A EP98830274A EP0877352B1 EP 0877352 B1 EP0877352 B1 EP 0877352B1 EP 98830274 A EP98830274 A EP 98830274A EP 98830274 A EP98830274 A EP 98830274A EP 0877352 B1 EP0877352 B1 EP 0877352B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- operation means
- control mechanism
- microswitch
- wheel
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
- G09F11/30—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from storage place to a display position
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
- G09F11/30—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from storage place to a display position
- G09F11/32—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from storage place to a display position the feeding means comprising belts or chains, e.g. endless belts or chains
Definitions
- the present invention relates to an control mechanism, particularly for information displayers with interchangeable boards.
- the invention concerns a mechanism allowing the realisation of the change of the boards in a displayer of the above kind in a precise and reliable way.
- a first kind of displayer is that one providing different horizontal elements with a triangular cross-section, that can rotate about their horizontal axis, in such a way that synchronously rotating the different faces, it is possible to modify the message visible to the public according a pre-established timed sequence.
- this kind of device is rather limitative, since the number of messages that can be viewed is limited to three, and they can be viewed according to a rigid sequence.
- a second kind of displayer for different images already known and available on the market is that comprising a sheet wound on a roll and upon which different messages in sequence are provided.
- the solution described and claimed allows to provide a high number of different messages according to a casual sequence and that can be singularly replaced.
- an information displayer with interchangeable boards comprising at least a loader of boards provided with means to take out said nth boards; means to grasp the board to be displayed; and means to bring in a display position and to bring back the same into a container, whereby said boards are selectively interchangeable, said loaders are releasably coupled to the displayer, so that they can be replaced with other ones containing different boards, in that said loaders have a stepping motion, with a number of steps corresponding to the number of boards provided, and in that the movement is obtained by a stepping motor controlled by a preprogrammed microprocessor.
- each message sheet supporting loader being provided with a respective control mechanism which is characterized in that it comprises a hooking element moving along a vertical path between said two loaders and being operated by a first operation means to bring the message sheets into a display position and to bring said message sheets back into the loader when not on display; at least a first micro switch provided along the vertical display path of said hooking element that interacts with said hooking element and controls the stop of said first operation means ; a pulley system located on the shaft of the loader powered by a second operation means and controlled by a pre programed control means; said pulley system including a wheel provided with a number of substancially equidistant eccentric peripheral surfaces corresponding to the number of display sheets; and at least a second micro switch interacting with eccentric surfaces; whereby the preprogramed control means determines the pitch of said
- said hooking element has two distinct zones of interference with said first microswitch, the first interference determining the slowing down of said first operation means and the second interference determining the stop of said first operation means and the start of said second operation means.
- said hooking element provides an interference zone
- a further microswitch being provided vertically aligned with said at least first microswitch, the first microswitch determining the slowing down of said first operation means and the further microswitch determining the stop of said first operation means and the start of said second operation means.
- said second operation means operates a wheel rotating by a pulley couple whit a motor shaft and a transmission belt between said wheel and said pulley.
- idle wheels can be provided to stress said transmission belt.
- a mechanical limit switch can be provided for the motion in any direction of said wheel with eccentric surfaces.
- said mechanical limit switch provides a slider movable in a substantially transverse direction, thrusted in a first direction by the interaction of a shaped tongue having a pin, provided on the same slider, the number of pins corresponding to the number of eccentric surfaces, up to the interference with a further microswitch, substantially provided aligned with said second microswitch, the stroke in this direction being delimited by a mechanical stop, and returned, in the opposite direction, following to the inversion of the rotation direction of the pulley with eccentric surfaces, by return elastic means.
- the movements of said first and second operation means are controlled by control programmable electronic means.
- FIG. 1 Referring first to figures 1 and 2 of the enclosed drawings, it is shown an image displayer 1 with interchangeable boards.
- Image displayer 1 comprises two loaders 2 and 3, respectively upper and lower, each bearing four wound boards 4. Obviously the number of the boards 4 can also be different.
- Said displayer further provides a dragging mechanism 5 to which a board of the lower loader 3 and a board 4 of the upper loader 2, which are respectively brought into exposition and wound again about the loader and vice versa.
- the hooking mechanism 5 When the board 4 to be displayed is completely extracted from its roll, the hooking mechanism 5 must hook the board of the upper loader 2 or of the lower loader 3 that will have to be then brought into exposition.
- a reinforcement element 7 is back provided for each board 4.
- the choose of the board 4 to be shown is controlled by a preprogrammed microprocessor, not shown, in this way allowing to have the possibility of the casual showing mentioned before.
- displayer 1 must provide a mechanism allowing to release the board 4 previously displayed, in the position on the free loader 2 or 3 and thus rotating the loader of the sufficient angle to allow to bring the established board 4 into exposition.
- the mechanism according to the invention is symmetrically provided both for the upper loader 2 and for the lower loader 3, so that it will be described only with reference to one of the two, on the figures being provided the same reference number.
- microswitch 8 is provided which interferes with said hooking mechanism 5 of the boards 4.
- a pulley 10 is provided outward the frame of the displayer 1, said pulley having peripherally four eccentric surfaces 11 (or in any case a number corresponding to the number of boards 4 provided on the loader 2 or 3) suitable to interact with a second microswitch 12.
- Said pulley 10 is rotated by a toothed belt 13 passing between two idle wheels 14, a second pulley 15, powered by a motor (not shown) always controlled by said microprocessor.
- the microprocessor After the signal from the stop microswitch 8 of the motor 6, the microprocessor will rotate the pulley 10 of 90°, to release the board 4 previously shown, until the following surface of the pulley interferes with the microswitch 12.
- this solution provides a mechanical limit switch 16 for the motion of the pulley 10 provided with eccentric surfaces 11.
- the mechanical limit switch 16 is transversely movable, until interacting with a microswitch 17, at the bottom provided aligned with said limit switch 12, in such a way to determine the inversion of the rotation of the pulley 10, once the suitable eccentric surface 11 is brought to interact with the microswitch 12.
- the limit switch 16 provides a shaped tongue 19 which interacts with pins 20 provided on the pulley 10, offset in a way corresponding to the eccentric surfaces 11.
- Microswitch 17 determines the inversion of the motion of the pulley 10, which will now rotate in a anticlockwise direction, bringing the following pin 20 beyond the tongue 19, sliding along the sloped surface of the tongue 19, to properly hook the following board.
- the dragging mechanism 5 has a single interference surface, in this case two different microswitches, respectively 8 and 23 being provided, for the slowing down and the stop of the same mechanism.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Control Of Multiple Motors (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Drawing Aids And Blackboards (AREA)
- Blinds (AREA)
Abstract
Description
- The present invention relates to an control mechanism, particularly for information displayers with interchangeable boards.
- More particularly, the invention concerns a mechanism allowing the realisation of the change of the boards in a displayer of the above kind in a precise and reliable way.
- As it is well known, during last years a remarkable diffusion of information displayers allowing the change of the message occurred, particularly in the advertising sector.
- A first kind of displayer is that one providing different horizontal elements with a triangular cross-section, that can rotate about their horizontal axis, in such a way that synchronously rotating the different faces, it is possible to modify the message visible to the public according a pre-established timed sequence.
- Obviously, this kind of device is rather limitative, since the number of messages that can be viewed is limited to three, and they can be viewed according to a rigid sequence.
- Furthermore, it is difficult to replace the messages, since it is necessary the complete substitution of the viewer device.
- A second kind of displayer for different images already known and available on the market is that comprising a sheet wound on a roll and upon which different messages in sequence are provided.
- In this case, if the number of messages is limited only by the length of the sheet and by the dimensions of the device, it is evident that remarkable limitations exist for the displaying sequence. In fact, the sequence is rigidly constrained to the order by which the different messages are placed on the sheet, so that they cannot be proposed according to a casual order.
- Furthermore, it is always necessary to replace the whole sheet to replace the messages.
- In view of the above, in EP-A-0 649 554 assigned to the Applicant, an innovative solution for an information displayer has been described to solve all the problems according to the prior art.
- Particularly, the solution described and claimed allows to provide a high number of different messages according to a casual sequence and that can be singularly replaced.
- FR-A-2716 740 and US-A- 2195249 describe solutions that can be considered as relevant background with respect to the independent claim of the present application.
- These results are obtained, as can be decuced from
claim 1 of EP-A-0 649 554, by an information displayer with interchangeable boards, comprising at least a loader of boards provided with means to take out said nth boards; means to grasp the board to be displayed; and means to bring in a display position and to bring back the same into a container, whereby said boards are selectively interchangeable, said loaders are releasably coupled to the displayer, so that they can be replaced with other ones containing different boards, in that said loaders have a stepping motion, with a number of steps corresponding to the number of boards provided, and in that the movement is obtained by a stepping motor controlled by a preprogrammed microprocessor. - Now, the Applicant has realised a solution allowing to operate a displayer having the features as described in EP-A-0 649 554 in a still more precise and reliable way.
- Obviously, the solution according to the present invention can be used also for different devices with respect to the one mentioned in the above mentioned European patent, having the same problems.
- It is therefore specific object of the present invention a control mechanism, particularly for information displayers with intercheangeable message sheets provided with a higher message sheet supporting loader and a lower message sheet supporting loader, each message sheet supporting loader being provided with a respective control mechanism which is characterized in that it comprises a hooking element moving along a vertical path between said two loaders and being operated by a first operation means to bring the message sheets into a display position and to bring said message sheets back into the loader when not on display; at least a first micro switch provided along the vertical display path of said hooking element that interacts with said hooking element and controls the stop of said first operation means ; a pulley system located on the shaft of the loader powered by a second operation means and controlled by a pre programed control means; said pulley system including a wheel provided with a number of substancially equidistant eccentric peripheral surfaces corresponding to the number of display sheets; and at least a second micro switch interacting with eccentric surfaces; whereby the preprogramed control means determines the pitch of said wheel so that the eccentric surfaces face in a direction so as to release the display sheet, and whereby the motion of said wheel is reversed until the eccentric surface corresponding to a different message sheet to be shown interacts with the second micro switch which stops the second operation means operating the pulley system and starts the first operation means which brings the new message sheet into display position.
- Preferably, according to the invention, said hooking element has two distinct zones of interference with said first microswitch, the first interference determining the slowing down of said first operation means and the second interference determining the stop of said first operation means and the start of said second operation means.
- Always according to the invention, said hooking element provides an interference zone, a further microswitch being provided vertically aligned with said at least first microswitch, the first microswitch determining the slowing down of said first operation means and the further microswitch determining the stop of said first operation means and the start of said second operation means.
- Furthermore, according to the invention, said second operation means operates a wheel rotating by a pulley couple whit a motor shaft and a transmission belt between said wheel and said pulley.
- Preferably, according to the invention, idle wheels can be provided to stress said transmission belt.
- Still according to the invention, a mechanical limit switch can be provided for the motion in any direction of said wheel with eccentric surfaces.
- Preferably, according to the invention, said mechanical limit switch provides a slider movable in a substantially transverse direction, thrusted in a first direction by the interaction of a shaped tongue having a pin, provided on the same slider, the number of pins corresponding to the number of eccentric surfaces, up to the interference with a further microswitch, substantially provided aligned with said second microswitch, the stroke in this direction being delimited by a mechanical stop, and returned, in the opposite direction, following to the inversion of the rotation direction of the pulley with eccentric surfaces, by return elastic means.
- Always according to the invention, the movements of said first and second operation means are controlled by control programmable electronic means.
- The present invention will be now described, for illustrative but not limitative purposes, according to its preferred embodiments, with particular reference to the figures of the enclosed drawings, wherein:
- figure 1 shows a front view of an image displayer with interchangeable boards provided with a first embodiment of the mechanism according to the invention;
- figure 2 shows a partially broken away lateral view of the mechanism of figure 1;
- figure 3 shows a partially broken away lateral view of a second embodiment of the mechanism according to the invention; and
- figure 3 shows a particular of the mechanism of figure 3.
-
- Referring first to figures 1 and 2 of the enclosed drawings, it is shown an
image displayer 1 with interchangeable boards. - As already mentioned, the invention will be described with particular reference to an image displayer with interchangeable boards, but it is well evident that the mechanism according to the invention can be adopted also on a different kind of device.
-
Image displayer 1 comprises twoloaders - Said displayer further provides a
dragging mechanism 5 to which a board of thelower loader 3 and a board 4 of theupper loader 2, which are respectively brought into exposition and wound again about the loader and vice versa. - When the board 4 to be displayed is completely extracted from its roll, the
hooking mechanism 5 must hook the board of theupper loader 2 or of thelower loader 3 that will have to be then brought into exposition. - The motion of the two boards 4 hooked by the
mechanism 5 is controlled by themotor 6. - A
reinforcement element 7 is back provided for each board 4. - As to the hooking and releasing device of the board 4 to the
mechanism 5, it is subject matter of a parallel patent application. - The choose of the board 4 to be shown is controlled by a preprogrammed microprocessor, not shown, in this way allowing to have the possibility of the casual showing mentioned before.
- However,
displayer 1 must provide a mechanism allowing to release the board 4 previously displayed, in the position on thefree loader - In fact, it is not sure that the board 4 to be shown is that following on the
loader - The mechanism according to the invention is symmetrically provided both for the
upper loader 2 and for thelower loader 3, so that it will be described only with reference to one of the two, on the figures being provided the same reference number. - Laterally, along the displayer 1 a
microswitch 8 is provided which interferes with saidhooking mechanism 5 of the boards 4. - Along the ascent or descent stroke of the mechanism 5 a double interference with the
microswitch 8 occurs: the first one sends a slowing down control to themotor 6, since indicates the approaching to the limit switch, the second one determining a stop control of thesame motor 6. - On the shaft of the
loader 2 or 3 apulley 10 is provided outward the frame of thedisplayer 1, said pulley having peripherally four eccentric surfaces 11 (or in any case a number corresponding to the number of boards 4 provided on theloader 2 or 3) suitable to interact with asecond microswitch 12. - Said
pulley 10 is rotated by atoothed belt 13 passing between twoidle wheels 14, asecond pulley 15, powered by a motor (not shown) always controlled by said microprocessor. - After the signal from the
stop microswitch 8 of themotor 6, the microprocessor will rotate thepulley 10 of 90°, to release the board 4 previously shown, until the following surface of the pulley interferes with themicroswitch 12. - Now the rotation of the
pulley 10 is inverted, making the pulley rotating of 90° (or 180° or 270° according to the control deriving from the microprocessor) to hook a different board 4 to be shown. - The rotation will occur until the corresponding eccentric surface of the
pulley 10 interferes with the microswitch, and then the motor operating thepulley 15 is stopped and themotor 6 dragging the displayed boards 4 is activated. - Coming now to describe the solution shown in figures 3 and 4, the same number reference will be used for the corresponding parts.
- As it can be noted, this solution provides a
mechanical limit switch 16 for the motion of thepulley 10 provided witheccentric surfaces 11. - The
mechanical limit switch 16 is transversely movable, until interacting with amicroswitch 17, at the bottom provided aligned with saidlimit switch 12, in such a way to determine the inversion of the rotation of thepulley 10, once the suitableeccentric surface 11 is brought to interact with themicroswitch 12. - The transverse stroke of the
mechanical limit switch 16 is bucked by thespring 18. - Furthermore, the
limit switch 16 provides ashaped tongue 19 which interacts withpins 20 provided on thepulley 10, offset in a way corresponding to theeccentric surfaces 11. - Observing now figure 4, when the pulley rotates in a clockwise direction, the
pin 20 acts on the straight surface of thetongue 19, thrusting the limit switch 16 rightward, until it interacts with themicroswitch 17. Stroke of themicroswitch 16 is in any case limited by thepin 21 within theslot 22 of thelimit switch 16. - Microswitch 17 determines the inversion of the motion of the
pulley 10, which will now rotate in a anticlockwise direction, bringing the followingpin 20 beyond thetongue 19, sliding along the sloped surface of thetongue 19, to properly hook the following board. - In the solution shown in figures 3 and 4, the
dragging mechanism 5 has a single interference surface, in this case two different microswitches, respectively 8 and 23 being provided, for the slowing down and the stop of the same mechanism. - Obviously, said solution can also be provided in the embodiment of figures 1 and 2, as well as the solution providing a
single microswitch 8 can be provided in the embodiment shown in figures 3 and 4.
Claims (9)
- Control mechanism, particularly for information displayers (1) with intercheangeable message sheets provided with a higher message sheet supporting loader (2) and a lower message sheet supporting loader (3), each message sheet supporting loader (2,3) being provided with a respective control mechanism which is characterized in that it comprises a hooking element (5) moving along a vertical path between said two loaders (2,3) and being operated by a first operation means (6) to bring the message sheets (4) into a display position and to bring said message sheets (4 ) back into the loader when not on display; at least a first micro switch (8) provided along the vertical display path of said hooking element (5) that interacts with said hooking element and controls the stop of said first operation means (6); a pulley system (10) located on the shaft of the loader powered by a second operation means and controlled by a pre programed control means; said pulley system including a wheel (14) provided with a number of substancially equidistant eccentric peripheral surfaces (11) corresponding to the number of display sheets (4); and at least a second micro switch (17) interacting with eccentric surfaces (11); whereby the preprogramed control means determines the pitch of said wheel(14) so that the eccentric surfaces (11) face in a direction so as to release the display sheet (4), and whereby the motion of said wheel (11) is reversed until the eccentric surface (11) corresponding to a different message sheet (4) to be shown interacts with the second micro switch (17) which stops the second operation means operating the pulley system and starts the first operation means which brings the new message sheet into display position.
- Control mechanism according to claim 1, characterised in that said hooking element has two distinct zones of interference with said first microswitch, the first interference determining the slowing down of said first operation means and the second interference determining the stop of said first operation means and the start of said second operation means.
- Control mechanism according to claim 1, characterised in that said hooking element provides an interference zone, a further microswitch being provided vertically aligned with said at least first microswitch, the first microswitch determining the slowing down of said first operation means and the further microswitch determining the stop of said first operation means and the start of said second operation means.
- Control mechanism according to one of the preceding claims, characterised in that said second operation means operates a wheel rotating by a pulley couple whit a motor shaft and a transmission belt between said wheel and said pulley.
- Control mechanism according to one of the preceding claims, characterised in that idle wheels are provided to stress said transmission belt.
- Control mechanism according to one of the preceding claims, characterised in that a mechanical limit switch is provided for the motion in any direction of said wheel with eccentric surfaces.
- Control mechanism according to claim 7, characterised in that said mechanical limit switch provides a slider movable in a substantially transverse direction, thrusted in a first direction by the interaction of a shaped tongue having a pin, provided on the same slider, the number of pins corresponding to the number of eccentric surfaces, up to the interference with a further microswitch, substantially provided aligned with said second microswitch, the stroke in this direction being delimited by a mechanical stop, and returned, in the opposite direction, following to the inversion of the rotation direction of the pulley with eccentric surfaces, by return elastic means.
- Control mechanism according to one of the preceding claims, characterised in that on said wheel 3 or 4 equidistant eccentric surfaces are provided.
- Control mechanism according to one of the preceding claims, characterised in that the movements of said first and second operation means are controlled by control programmable electronic means.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97RM000272A IT1290615B1 (en) | 1997-05-09 | 1997-05-09 | DRIVE MECHANISM, ESPECIALLY FOR INFORMATION DISPLAYS WITH INTERCHANGEABLE PANELS |
ITRM970272 | 1997-05-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0877352A2 EP0877352A2 (en) | 1998-11-11 |
EP0877352A3 EP0877352A3 (en) | 1999-12-08 |
EP0877352B1 true EP0877352B1 (en) | 2004-12-08 |
Family
ID=11405056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98830274A Expired - Lifetime EP0877352B1 (en) | 1997-05-09 | 1998-05-06 | Control mechanism, particularly for information displayers with interchangeable boards |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0877352B1 (en) |
AT (1) | ATE284567T1 (en) |
DE (1) | DE69827990T2 (en) |
ES (1) | ES2235308T3 (en) |
IT (1) | IT1290615B1 (en) |
PT (1) | PT877352E (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2792099B1 (en) * | 1999-04-12 | 2001-07-13 | Oppidum Sarl | OSCILLATING DYNAMIC DISPLAY DEVICE |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2195249A (en) * | 1938-08-17 | 1940-03-26 | Visual Merchandiser Inc | Display machine |
ES2098761T3 (en) * | 1992-07-06 | 1997-05-01 | New Board International Ltd | INFORMATION SUBMISSION DEVICE FOR INTERCHANGEABLE PANELS. |
FR2716740B1 (en) * | 1994-02-25 | 1996-05-15 | Georges Symoens | Multiple advertising panel. |
-
1997
- 1997-05-09 IT IT97RM000272A patent/IT1290615B1/en active IP Right Grant
-
1998
- 1998-05-06 PT PT98830274T patent/PT877352E/en unknown
- 1998-05-06 EP EP98830274A patent/EP0877352B1/en not_active Expired - Lifetime
- 1998-05-06 AT AT98830274T patent/ATE284567T1/en not_active IP Right Cessation
- 1998-05-06 DE DE69827990T patent/DE69827990T2/en not_active Expired - Fee Related
- 1998-05-06 ES ES98830274T patent/ES2235308T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0877352A3 (en) | 1999-12-08 |
EP0877352A2 (en) | 1998-11-11 |
ATE284567T1 (en) | 2004-12-15 |
ES2235308T3 (en) | 2005-07-01 |
DE69827990D1 (en) | 2005-01-13 |
ITRM970272A0 (en) | 1997-05-09 |
DE69827990T2 (en) | 2005-11-24 |
IT1290615B1 (en) | 1998-12-10 |
PT877352E (en) | 2005-04-29 |
ITRM970272A1 (en) | 1998-11-09 |
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