CA1118994A - Automatically arrestable curtain type route indicator - Google Patents
Automatically arrestable curtain type route indicatorInfo
- Publication number
- CA1118994A CA1118994A CA000344667A CA344667A CA1118994A CA 1118994 A CA1118994 A CA 1118994A CA 000344667 A CA000344667 A CA 000344667A CA 344667 A CA344667 A CA 344667A CA 1118994 A CA1118994 A CA 1118994A
- Authority
- CA
- Canada
- Prior art keywords
- curtain
- switch
- count
- motor
- display
- 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
Links
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
- G09F11/24—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 advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies
- G09F11/29—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 advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies of a band other than endless
- G09F11/295—Electric control therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
AUTOMATICALLY ARRESTABLE CURTAIN TYPE
ROUTE INDICATOR
ABSTRACT
A curtain and roller destination sign for display from a bus or the like vehicle is rotatable by an electric motor. Each name or number destination display segment of the curtain has a foil strip attached to its rear part to be sensed by a proximity switch which sends pulses so an electronic processor which counts and stores the count of the pulses provided by the moving curtain completing intermittently the signals from the proximity switch. A manually operated thumbwheel switch is connected to the processor to indicate by the numeral setting on it for comparison by the processor of the count from the proximity switch at the curtain. When the manually set switch setting corresponds to the count from the curtain the motor is stopped to arrest the curtain at the required setting and to thereby display the destination corresponding to the manual setting made on the thumbwheel switch.
ROUTE INDICATOR
ABSTRACT
A curtain and roller destination sign for display from a bus or the like vehicle is rotatable by an electric motor. Each name or number destination display segment of the curtain has a foil strip attached to its rear part to be sensed by a proximity switch which sends pulses so an electronic processor which counts and stores the count of the pulses provided by the moving curtain completing intermittently the signals from the proximity switch. A manually operated thumbwheel switch is connected to the processor to indicate by the numeral setting on it for comparison by the processor of the count from the proximity switch at the curtain. When the manually set switch setting corresponds to the count from the curtain the motor is stopped to arrest the curtain at the required setting and to thereby display the destination corresponding to the manual setting made on the thumbwheel switch.
Description
AUTOMATICALLY ARRESTABLE CURTAIN TYPE ROUTE INDICATOR
FIELD OF INVENTION
The present invention relates to a curtain and roller type vehicle destination indicating sign that is operated to run and se~k out and stop a specified segment of the marked curtain by means of sensing and counting means responsive to a preset coded switch associated with intermittent pulses emanating from the rolling curtain.
In particular the invention herein provides a signal ;
conductive means associated with each of a plurality of destination marked and segmented positions on the sign curtain of a vehicle such as a bus or the like, to cause a pulse from each passing destination marking on the curtain as the curtain travels backward or forward between the rolls. Each signal or pulse, indicating the passage of a destination indication, is counted and relayed to a memory means. When the count in the memory corresponds to the pre-selected total or the actual numeral on a manually set switch means the curtain is arrested by the stopping of the roll motor, and thereby the desired destination marking is shown displayed on -the sign.
::
PRIOR ART
Destination signs having a curtain means with route names and numbers that is moveably transported between two rolls to show sequential segments of the curtain are well known. The rou~
` marked on the sign appear in rotation and are visible from the - outside of the vehicle through a window in the frame casing surrounding the mounting for the curtain and rolls on the front or sides of the bus.
The said known destination signs are manually operated by the bus driver who must roll the curtain at the end of each route to seek the proper marking on the curtain for his next or return trip.
There are usually a series of visual markings on the curtain visible by the operator through a small window on the back of the sign which he must watch to select the desired destination mark or name.
. DISADVANTAGES OF THE PRIOR ART
' When vehicles such as city or provincial buses are to be used on many routes it is desirable to have a destination sign which will include all possible routes for all buses but such a sign would have a curtain with many hundreds of routes marked on it which would give the driver a most tedious task of changing the route name after every run. The lost man time therefore becomes prohibitive and a need has arisen for a destination sign with many hundreds of route names any one of which can be selected quickly and automatically.
O~JECT OF THE INVENTION
It is the principal object of the invention to provide the roll and curtain type destination display with a means for automatica-lly counting the marked segments of the curtain and to arrest the curtain to display in the window of the vehicle destination sign, a one of the destination markings responsive to the setting or reading of a pre-select switch which has been manually actuated to seek and display one of the plurality of destinations corresponding to a partic-ular setting of the switch.
SUMMARY OF THE INVENTION
' :
; A curtain and roller type destination display for vehicles and the like has a first switch means for actuating the motor for transport of the curtain on the rollers either forward or backward. The curtain is divided into parallely spaced apart i segments and each segment has associated with it a conductive metallic strip or patch which will complete a circuit in a pick-off means fixed to said display means adjacent the passage of the curtain. As a current is created by the pick-off means a signal 5~nt isAto a memory device where it is stored and counted. A pre-select switch having a plurality of settings corresponding to the number i of segmented curtain destinatin markings is associated with the `~
memory means and manually set by an operator . When the destination segment on the curtain is reached during movement over the rollers ~; the signal from it will be matched by the switch select means and the roll motor circuit will be closed to arrest movement in the ; rolls thereby displaying the desired destination at a window located at the position of arrest.
.; ,:
. .
; I21 THE DR~WINGS
, :
With the foregoing in view and such other ob~ects and novel features that become apparent from consideration of this disclosure, the present invention consists of the inventive con-cept which is comprised, embodied and included in the method, construction or combination of parts herein exemplified reference being had to the accompanying drawings in which like reference numerals refer to like parts.
Flg.l is a perspective view of the rear of a destination sign showing the positioning of the proximity switch or metal tape sensing means.
Fig.2 is a block diagram of the components of the electronic switching circuits of the invention.
Description of the disclosed embodiment and Mode of operation.
In Fig.l a destination sign as used on a city bus and enumer-ated lO has a set of rollers 11,12,13,1~, rotatable and held between frame members 18,18', and have a sign curtain 15 moveable over them in either of two directions as shown by arrow "A".
' By suitable gearing means, not shown, a reversible electric motor 16 causes one of rolls ll,or 12, to wind curtain 15 in one direct-ion and the other of rolls ll,orl2, to wind the curtain 15 in the ! opposite direction. ;
~ The curtain 15 is divided into longitudinal segments across ;l its width and each dispayable in sequence as the curtain is wound -~
from one roll to the other. A destination symbol such as a ~name or number is marked across the front face of the segment to be ;
displayed on the front of the sign in the usual manner.
Associated with each segment is a metal foil strip 17 situated - ;
in series over the length of the curtain from top to bottom. A
proximity switch or other electric sensing means 1~ is attached to the sign frame 18 adjacent the~moving curtain carrying the foils 17.
The sensing means will send a signal to the processor 36 and the storage memory 20 to which it is connected by a count input line, as each foil 17 passes it during movement of the curtain. In the sensor shown a pair of fingers 21,22, of conductive metal of spring like character ride along the curtain back as it moves and will complete a circuit whenever the foil 17 passes between them. The count circuit is energized and will therefore send a pulse to the memory and processor whenever the curtain 15 carries a foil across 8~
the sensing fingers 21,22. The processor 36 counts each pulse and stores the count in the memory 20. The number position of the segment and display shown on the curtain and the "count" of the memory will correspond at all times.
The reversible motor 16, is connected to a D.C. battery such as the bus battery 40 and a live connection is also made between the processor and the battery. The current required by the processor 36 the memory 20 and the manually operable thumbwheel set switch 35 is of a very low order to insure that very little drainage is made on the battery when the vehicle is not being run. Since the memory will loose its count if the current in the battery fails provision must be made to reset the sign position when the power fails to the processor to `--'A :' insure that the sign~-count position and the storage count correspond.
A run light 41 is provided to indicate to the opera-tor that the processor is under power. To reset the store count to correspond to the sign count it is necesarry to bring the curtain back to "0" and to wind it up to the required display segment to allow the processor to count and store the proper number. After a power failure the operator will actuate a reset switch 25 which will have the motor bring the curtain 15 back to "0" and then reverse and count pulses from the sensing fingers until the comparator in the processor arrives at the count set on the thumbwheel switch 35 when the curtain will be arrested to show the sign corresponding to *he setting on 35. The counts on the switch 35, the storage 20 and the actual curtain will be all the same and the operation will stop and await a new setting for 35 before resuminy the movement.
To change a destination displayed on the sign face of the curtain the operator resets the thumbwheel switch 35 which is connected to the processor. The switch 35 has units, tens and hundreds positions which are manually set by the operator and displayed by numerals on a dial for his obser~ation. Each Setting has a connection to the processor and suitable comparator lines to the memory. Let us say for example that the storage has a count of 55 and the switch shows 055 prior to the resetting with the curtain displaying a destination marking corresp-onding to 55. The thumbwheel switch is then set for 012 and the start switch 27 actuated which starts the motor. At the time of switching on of the motor the processor is alerted that 012 position is back of the 055 position the motor is alerted to reverse rather than to proceed to the end of curtain and then reverse. When reversing the storage will subtract the "counts" of the pulses until a count of 012 corresponding to the reading of 35 is arrived at when a signal to arrest the curtain is sent to the motor which is awitched off upon displaying the 12 position on the sign. Since there are 999 plus a 0 position or segment possible on the sign it is a great saving in time to have the processor seek the segment of the curtain required by the shortest route.
Since for speed of operation the motor must wind the curtain at the fastest time allowed by the materials available and to change for example from position 12 to 875, it must wind much faster than would be possible manually. A means is provided to brake the momentum of the curtain and to allow over-run of the display required and then for reversal to the required position to protect the curtain from destruction which an instantaneous arrest of the motor and ~urtain roll may cause. Upon arrival at thè designated segment of the curtain, therefore a signal is sent to the motor by the processor for reversal.
Upon over-run of the position the motor will slowly reverse the curtain until the position to be displayed is centred upon the front of the sign when it finally stops the curtain. The curtain and rolls dissipate their momentum during the arrest and reversal motion of the motor and the said action is controlled by the processor by the signal from the proximity switch 19.
The ends of the curtain have an end of curtain proximity switch 28 similar to switch 19 to protect the curtain from over-ride and to signal the motor to reverse. On the bloc]c diagram the end of curtain signal is shown as an input to the processor where the signal is directed to the motor contro71 for reversing the motor.
It is understood that variations can be made to the invention , disclosed herein without departing from the scope of the claims .. attached hereto.
In particular the applicants envisage the use of discrete ; markings on the curtain with such markings being different for each destination and having the sensor an optical reader which reads the markings at each station on the curtain and senses and sends a ~. pulse reading of the destination thus opticaly sensed and read.
.i~ A tensioning means (not shown) is provided to maintain a uniform . tension in the portion of the curtain extending be-tween the roller ~ .
reels.
,` ~
-8- ; ~
FIELD OF INVENTION
The present invention relates to a curtain and roller type vehicle destination indicating sign that is operated to run and se~k out and stop a specified segment of the marked curtain by means of sensing and counting means responsive to a preset coded switch associated with intermittent pulses emanating from the rolling curtain.
In particular the invention herein provides a signal ;
conductive means associated with each of a plurality of destination marked and segmented positions on the sign curtain of a vehicle such as a bus or the like, to cause a pulse from each passing destination marking on the curtain as the curtain travels backward or forward between the rolls. Each signal or pulse, indicating the passage of a destination indication, is counted and relayed to a memory means. When the count in the memory corresponds to the pre-selected total or the actual numeral on a manually set switch means the curtain is arrested by the stopping of the roll motor, and thereby the desired destination marking is shown displayed on -the sign.
::
PRIOR ART
Destination signs having a curtain means with route names and numbers that is moveably transported between two rolls to show sequential segments of the curtain are well known. The rou~
` marked on the sign appear in rotation and are visible from the - outside of the vehicle through a window in the frame casing surrounding the mounting for the curtain and rolls on the front or sides of the bus.
The said known destination signs are manually operated by the bus driver who must roll the curtain at the end of each route to seek the proper marking on the curtain for his next or return trip.
There are usually a series of visual markings on the curtain visible by the operator through a small window on the back of the sign which he must watch to select the desired destination mark or name.
. DISADVANTAGES OF THE PRIOR ART
' When vehicles such as city or provincial buses are to be used on many routes it is desirable to have a destination sign which will include all possible routes for all buses but such a sign would have a curtain with many hundreds of routes marked on it which would give the driver a most tedious task of changing the route name after every run. The lost man time therefore becomes prohibitive and a need has arisen for a destination sign with many hundreds of route names any one of which can be selected quickly and automatically.
O~JECT OF THE INVENTION
It is the principal object of the invention to provide the roll and curtain type destination display with a means for automatica-lly counting the marked segments of the curtain and to arrest the curtain to display in the window of the vehicle destination sign, a one of the destination markings responsive to the setting or reading of a pre-select switch which has been manually actuated to seek and display one of the plurality of destinations corresponding to a partic-ular setting of the switch.
SUMMARY OF THE INVENTION
' :
; A curtain and roller type destination display for vehicles and the like has a first switch means for actuating the motor for transport of the curtain on the rollers either forward or backward. The curtain is divided into parallely spaced apart i segments and each segment has associated with it a conductive metallic strip or patch which will complete a circuit in a pick-off means fixed to said display means adjacent the passage of the curtain. As a current is created by the pick-off means a signal 5~nt isAto a memory device where it is stored and counted. A pre-select switch having a plurality of settings corresponding to the number i of segmented curtain destinatin markings is associated with the `~
memory means and manually set by an operator . When the destination segment on the curtain is reached during movement over the rollers ~; the signal from it will be matched by the switch select means and the roll motor circuit will be closed to arrest movement in the ; rolls thereby displaying the desired destination at a window located at the position of arrest.
.; ,:
. .
; I21 THE DR~WINGS
, :
With the foregoing in view and such other ob~ects and novel features that become apparent from consideration of this disclosure, the present invention consists of the inventive con-cept which is comprised, embodied and included in the method, construction or combination of parts herein exemplified reference being had to the accompanying drawings in which like reference numerals refer to like parts.
Flg.l is a perspective view of the rear of a destination sign showing the positioning of the proximity switch or metal tape sensing means.
Fig.2 is a block diagram of the components of the electronic switching circuits of the invention.
Description of the disclosed embodiment and Mode of operation.
In Fig.l a destination sign as used on a city bus and enumer-ated lO has a set of rollers 11,12,13,1~, rotatable and held between frame members 18,18', and have a sign curtain 15 moveable over them in either of two directions as shown by arrow "A".
' By suitable gearing means, not shown, a reversible electric motor 16 causes one of rolls ll,or 12, to wind curtain 15 in one direct-ion and the other of rolls ll,orl2, to wind the curtain 15 in the ! opposite direction. ;
~ The curtain 15 is divided into longitudinal segments across ;l its width and each dispayable in sequence as the curtain is wound -~
from one roll to the other. A destination symbol such as a ~name or number is marked across the front face of the segment to be ;
displayed on the front of the sign in the usual manner.
Associated with each segment is a metal foil strip 17 situated - ;
in series over the length of the curtain from top to bottom. A
proximity switch or other electric sensing means 1~ is attached to the sign frame 18 adjacent the~moving curtain carrying the foils 17.
The sensing means will send a signal to the processor 36 and the storage memory 20 to which it is connected by a count input line, as each foil 17 passes it during movement of the curtain. In the sensor shown a pair of fingers 21,22, of conductive metal of spring like character ride along the curtain back as it moves and will complete a circuit whenever the foil 17 passes between them. The count circuit is energized and will therefore send a pulse to the memory and processor whenever the curtain 15 carries a foil across 8~
the sensing fingers 21,22. The processor 36 counts each pulse and stores the count in the memory 20. The number position of the segment and display shown on the curtain and the "count" of the memory will correspond at all times.
The reversible motor 16, is connected to a D.C. battery such as the bus battery 40 and a live connection is also made between the processor and the battery. The current required by the processor 36 the memory 20 and the manually operable thumbwheel set switch 35 is of a very low order to insure that very little drainage is made on the battery when the vehicle is not being run. Since the memory will loose its count if the current in the battery fails provision must be made to reset the sign position when the power fails to the processor to `--'A :' insure that the sign~-count position and the storage count correspond.
A run light 41 is provided to indicate to the opera-tor that the processor is under power. To reset the store count to correspond to the sign count it is necesarry to bring the curtain back to "0" and to wind it up to the required display segment to allow the processor to count and store the proper number. After a power failure the operator will actuate a reset switch 25 which will have the motor bring the curtain 15 back to "0" and then reverse and count pulses from the sensing fingers until the comparator in the processor arrives at the count set on the thumbwheel switch 35 when the curtain will be arrested to show the sign corresponding to *he setting on 35. The counts on the switch 35, the storage 20 and the actual curtain will be all the same and the operation will stop and await a new setting for 35 before resuminy the movement.
To change a destination displayed on the sign face of the curtain the operator resets the thumbwheel switch 35 which is connected to the processor. The switch 35 has units, tens and hundreds positions which are manually set by the operator and displayed by numerals on a dial for his obser~ation. Each Setting has a connection to the processor and suitable comparator lines to the memory. Let us say for example that the storage has a count of 55 and the switch shows 055 prior to the resetting with the curtain displaying a destination marking corresp-onding to 55. The thumbwheel switch is then set for 012 and the start switch 27 actuated which starts the motor. At the time of switching on of the motor the processor is alerted that 012 position is back of the 055 position the motor is alerted to reverse rather than to proceed to the end of curtain and then reverse. When reversing the storage will subtract the "counts" of the pulses until a count of 012 corresponding to the reading of 35 is arrived at when a signal to arrest the curtain is sent to the motor which is awitched off upon displaying the 12 position on the sign. Since there are 999 plus a 0 position or segment possible on the sign it is a great saving in time to have the processor seek the segment of the curtain required by the shortest route.
Since for speed of operation the motor must wind the curtain at the fastest time allowed by the materials available and to change for example from position 12 to 875, it must wind much faster than would be possible manually. A means is provided to brake the momentum of the curtain and to allow over-run of the display required and then for reversal to the required position to protect the curtain from destruction which an instantaneous arrest of the motor and ~urtain roll may cause. Upon arrival at thè designated segment of the curtain, therefore a signal is sent to the motor by the processor for reversal.
Upon over-run of the position the motor will slowly reverse the curtain until the position to be displayed is centred upon the front of the sign when it finally stops the curtain. The curtain and rolls dissipate their momentum during the arrest and reversal motion of the motor and the said action is controlled by the processor by the signal from the proximity switch 19.
The ends of the curtain have an end of curtain proximity switch 28 similar to switch 19 to protect the curtain from over-ride and to signal the motor to reverse. On the bloc]c diagram the end of curtain signal is shown as an input to the processor where the signal is directed to the motor contro71 for reversing the motor.
It is understood that variations can be made to the invention , disclosed herein without departing from the scope of the claims .. attached hereto.
In particular the applicants envisage the use of discrete ; markings on the curtain with such markings being different for each destination and having the sensor an optical reader which reads the markings at each station on the curtain and senses and sends a ~. pulse reading of the destination thus opticaly sensed and read.
.i~ A tensioning means (not shown) is provided to maintain a uniform . tension in the portion of the curtain extending be-tween the roller ~ .
reels.
,` ~
-8- ; ~
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A curtain type destination sign for display from a bus or like vehicle comprising in combination;
two parallel spaced apart roller reels having a display curtain reeled thereon and extending therebetween;
a plurality of destination displays arranged longitudinally on said curtain;
a motor and drive mechanism for rotating said reels in a forward or backward direction with means for maintaining a uniform tension in the curtain portion extending therebetween;
discrete index means on said curtain associated with each destination display;
a stationary sensor adapted to operate a discrete pulse responsive to each discrete index means sensed thereby;
a manually operable numerical switch;
and means energizing said motor until said switch communicates a pulse relative to an index corresponding to the number manually entered on said numerical switch to arrest said motor at a specific display.
two parallel spaced apart roller reels having a display curtain reeled thereon and extending therebetween;
a plurality of destination displays arranged longitudinally on said curtain;
a motor and drive mechanism for rotating said reels in a forward or backward direction with means for maintaining a uniform tension in the curtain portion extending therebetween;
discrete index means on said curtain associated with each destination display;
a stationary sensor adapted to operate a discrete pulse responsive to each discrete index means sensed thereby;
a manually operable numerical switch;
and means energizing said motor until said switch communicates a pulse relative to an index corresponding to the number manually entered on said numerical switch to arrest said motor at a specific display.
2. A curtain type destination sign as claimed in claim 1 having a storage means connected electrically to said sensor to count and store each of the discrete pulses signaled by said sensor, and having addressing means connected to said switch with comparator logic associated therewith to control the direction of travel of said curtain on said reels according to the numerical order of its storage count in relation to any change in the manual setting of the manual switch, thereby allowing said sensor to seek out the display required by the changed setting by the shortest distance on the curtain.
3. A curtain type destination sign as claimed in claim 1 or 2 having an end of curtain detect means on either end of said curtain to alert a motor control means to reverse the direction of rotation of said motor.
4. A curtain type destination sign as in claim 2, having a manual settable switch means to return the curtain to a start position and to run the curtain and sensors to the dispay position on the curtain corresponding to the numerical setting on the switch means to provide the count in the storage means whenever the storage count becomes erased due to power failure to the storage means.
5. A curtain type destination sign as in claim 1 wherein said switch is a thumbwheel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000344667A CA1118994A (en) | 1980-01-30 | 1980-01-30 | Automatically arrestable curtain type route indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000344667A CA1118994A (en) | 1980-01-30 | 1980-01-30 | Automatically arrestable curtain type route indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1118994A true CA1118994A (en) | 1982-03-02 |
Family
ID=4116141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000344667A Expired CA1118994A (en) | 1980-01-30 | 1980-01-30 | Automatically arrestable curtain type route indicator |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1118994A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217977A (en) * | 2017-05-23 | 2017-09-29 | 李海英 | The curtain state transition method detected based on wind-force |
-
1980
- 1980-01-30 CA CA000344667A patent/CA1118994A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217977A (en) * | 2017-05-23 | 2017-09-29 | 李海英 | The curtain state transition method detected based on wind-force |
| CN107217977B (en) * | 2017-05-23 | 2018-03-20 | 杨丽 | Curtain state transition method based on wind-force detection |
| CN108119051A (en) * | 2017-05-23 | 2018-06-05 | 李海英 | Curtain state transition method based on wind-force detection |
| CN108119051B (en) * | 2017-05-23 | 2018-11-06 | 盐城市金良窗饰有限公司 | Curtain state transition method based on wind-force detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |