U.S. patent number 3,913,717 [Application Number 05/400,937] was granted by the patent office on 1975-10-21 for turnstile apparatus.
This patent grant is currently assigned to Qonaar Corporation. Invention is credited to Terence John Collins.
United States Patent |
3,913,717 |
Collins |
October 21, 1975 |
Turnstile apparatus
Abstract
This invention relates to a turnstile construction of the type
including a barrier arm normally blocking passage beyond the
turnstile. The construction is of the type adapted to be
automatically operated upon the deposit of a proper fare, and the
operation includes the location of the turnstile arm on a support,
and the operation of drive means for moving the support and
associated arm as a person moves through the turnstile. The drive
means is designed so that the barrier arm will move at a constant
speed when unaffected by any forces applied by persons moving
through the turnstile, and the drive mechanisms are such that the
arm movement can be increased or decreased depending upon the force
applied by a person moving through the turnstile. The arm includes
at least some light transmitting portions and a light system is
associated with the arm whereby the operating condition of the arm
can be determined by the person desiring to pass through the
turnstile. Thus, a person using the turnstile can visually
determine whether the arm is free to be moved or is locked.
Inventors: |
Collins; Terence John
(Schaumburg, IL) |
Assignee: |
Qonaar Corporation (Elk Grove
Village, IL)
|
Family
ID: |
23585619 |
Appl.
No.: |
05/400,937 |
Filed: |
September 26, 1973 |
Current U.S.
Class: |
194/211; 49/25;
194/218; 194/903; 49/46; 194/241 |
Current CPC
Class: |
G07F
17/145 (20130101); Y10S 194/903 (20130101) |
Current International
Class: |
G07F
17/14 (20060101); G07F 17/00 (20060101); G07F
009/02 () |
Field of
Search: |
;49/13,42-47,49,25
;310/105,106 ;340/324R,378R,346,127-133,143,146
;194/1R,DIG.18,DIG.23,DIG.24,8,16 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Reeves; Robert B.
Assistant Examiner: Skaggs; H. Grant
Attorney, Agent or Firm: McDougall, Hersh & Scott
Claims
That which is claimed is:
1. In a turnstile construction wherein a barrier arm is mounted on
a movable support, the arm being movable from a blocking position
to a position permitting passage of a person through the turnstile,
the construction defining a passageway for only a single person
whereby the movement of the arm is by only one person moving
through the construction in a single direction at any given
operation of the construction, the improvement comprising drive
means for said support, said drive means serving to move said arm
in either direction and including a gear train, a drive motor
having a drive shaft, means including variable torque transmitting
means connecting the motor drive shaft to said gear train whereby
said motor operates to drive said support at a predetermined speed
when movement of the barrier arm is unaffected by a person moving
through the turnstile, and whereby the arm speed is adapted to be
increased or decreased when engaged by the person, means for
locking said drive means to thereby hold said arm against movement
by a person engaging the arm comprising a pair of locking means,
one of said locking means serving to hold said arm against movement
in one direction and the other lockihg means serving to hold said
arm against movement in the opposite direction, said drive means
and condition-responsive means for selectively releasing only one
of said locking means at a time and for thereby permitting
operation of said drive means to move said arm in only one
direction at a time.
2. A construction in accordance with claim 1 wherein said gear
train includes a drive pinion, at least one drive gear connected
between said pinion and said support whereby rotation of the pinion
operates to move the support, and a shaft supporting said pinion,
said variable torque transmitting means being interposed between
the motor drive shaft and the pinion supporting shaft.
3. A construction in accordance with claim 2 wherein said support
is driven by a gear in said train, said drive motor comprising a
small capacity motor, said gear train being designed to step up the
power transmission from said motor whereby said support is adapted
to operate under high load conditions.
4. A construction in accordance with claim 1 wherein said variable
torque transmitting means comprises a hysteresis clutch.
5. A construction in accordance with claim 1 including a fare
accepting means associated with the turnstile, insertion of the
proper fare in the turnstile operating said condition-responsive
means.
6. A construction in accordance with claim 1 wherein said locking
means comprise a pair of toothed wheels, said drive means including
a shaft member supporting said toothed wheels, and locking pawls
for each wheel for selectively engaging a tooth for each wheel.
7. A construction in accordance with claim 6 including a solenoid
for controlling the movement of said pawl, spring means normally
holding said pawl out of engagement with said wheel, energization
of said solenoid operating to move said pawl into engagement with a
tooth on said wheel, said condition-responsive means operating to
de-energize said solenoid.
8. A construction in accordance with claim 1 wherein said locking
means comprise sprag clutches, a shaft forming part of said drive
means for supporting said sprag clutches, one of said clutches
permitting free rotation of its supporting shaft in one direction
and the other of said clutches permitting rotation of its
supporting shaft in the opposite direction.
9. A construction in accordance with claim 1 wherein said barrier
arm moves from a start position to a second position as each person
moves through the construction, and including means for detecting
arrival of the arm at the second position, and means operating in
response to the detecting means for operating said locking means to
hold the arm against further movement.
10. A construction in accordance with claim 9 including an
additional detecting means for detecting an intermediate position
of movement of said arm, and means for resetting the turnstile
mechanisms in preparation for the next person arriving at the
turnstile when said intermediate position of the arm is
detected.
11. In a turnstile construction wherein a barrier arm is mounted on
a movable support, the arm being movable from a blocking position
to a position permitting passage of a person through the turnstile,
the improvement comprising drive means for said support, a drive
motor having a drive shaft, and means including variable torque
transmitting means connecting the motor drive shaft to said support
whereby said motor operates to drive said support at a
predetermined speed when movement of the barrier arm is unaffected
by a person moving through the turnstile, and whereby the arm speed
is adapted to be increased or decreased when engaged by the person,
means for locking said drive means to thereby hold said arm against
movement by a person engaging the arm, and condition-responsive
means for releasing said locking means and operating said drive to
move said arm, and wherein said barrier arm moves from a start
position to a second position as each person moves through the
construction, and including means for detecting arrival of the arm
at the second position, and means operating in response to the
detecting means for operating said locking means to hold the arm
against further movement, said detecting means comprising a
magnetically operated switch, said drive means including a drive
gear movable adjacent said switch, magnets disposed in angularly
spaced apart relationship on said gear, the angular spacing between
said magnets corresponding with the degree of movement of said arm
between said start and second positions.
12. In a turnstile construction wherein a plurality of barrier arms
are mounted on a movable support, the arms each being temporarily
movable to positions permitting passage of a person through the
turnstile when the proper fare has been collected from the person,
the improvement wherein said arm includes light transmitting
portions visible to persons using the turnstile, a light source,
locking means for said arm, means for varying the color of the
light visible to a person using the turnstile so that the person
using the turnstile can visually determine whether the arm is
locked or unlocked, said color varying means being located in a
stationary position on the turnstile and said arms being
successively movable into alignment with said color varying means
as persons pass through the turnstile, and means connecting the
fare collecting means to said locking means and to said means for
varying the color whereby the color and the locked condition of the
arm are controlled by th fare collecting means.
13. A construction in accordance with claim 12 wherein said color
varying means comprise a pivotally mounted holder, colored filters
mounted in said holder, said holder being positioned between said
light source and said arm, and means for pivoting said holder to
move different filters into position opposite said light
source.
14. A construction in accordance with claim 13 wherein said filters
are provided to illustrate an open position, an intermediate
position, and a locked position.
15. A construction in accordance with claim 12 wherein said arm
comprises a light transmitting portion on both sides thereof, a
light blocking member located between said light transmitting
portions, and including color varying means for independent
alignment with each side of a barrier arm whereby different colors
can be displayed on opposite sides of the arm.
16. A construction in accordance with claim 15 wherein said barrier
arms are formed of a translucent material, said light blocking
member comprising a member extending the length of said barrier
arms and serving to re-enforce the barrier arm.
Description
This invention relates to an improved turnstile construction. The
invention is particularly directed to a turnstile construction
which is particularly directed to a turnstile construction which is
characterized by a highly automated and reliable operation whereby
a construction of maximum effectiveness is achieved.
The development of rapid transit systems, particularly in large
metropolitan areas, is rapidly advancing. In order to provide the
most efficient and economical operations, the systems are
preferably designed so that the various phases thererof can be
automatically operated.
In large scale rapid transit operations, a very large volume of
persons must be handled. In addition, such operations are subjected
to peak load periods, that is, the traditional morning and evening
commuter rush-hour periods. Since manual fare collecting can become
extremely burdensome in such situations and can seriously slow down
operations, attempts have been made to develop turnstile
constructions for collecting fares and for admitting passengers
depending upon the payment of the proper fare.
Existing turnstile constructions have been found to suffer from
various limitations. The constructions are often confusing in their
operation whereby the constructions themselves lead to delays in
the operation of the transit system. Furthermore, the constructions
are not always versatile enough for maximum operating efficiencies.
For example, such constructions are often limited to "one-way"
use.
It is a general object of this invention to provide an improved
turnstile construction particularly suitable for use in conjunction
with rapid transit systems.
It is a more specific object of this invention to provide a
turnstile construction which is characterized by a highly reliable
but economical operating system whereby the turnstile can be used
in a system with minimum difficulty.
It is a still further object of this invention to provide a
turnstile construction of the type described wherein the
construction is readily adaptable for operation in either
direction, and whereby the construction accomplishes the dual
direction operation without in any way reducing operating
efficiency.
It is a still further object of this invention to provide a
turnstile construction which includes a barrier arm arrangement
having signals associated therewith whereby the construction can be
included in a system with a minimum of user confusion.
These and other objects of this invention will appear hereinafter,
and for purposes of illustration, but not of limitation, specific
embodiments of the invention are shown in the accompanying drawings
in which:
FIG. 1 is an elevational view of a turnstile having barrier arm
mechanisms of the type contemplated by the invention associated
therewith;
FIG. 2 is a fragmentary view of the construction taken about the
line 2--2 of FIG. 1;
FIG. 3 is a fragmentary plan view of the construction;
FIG. 4 is a schematic illustration of the circuit elements included
in the construction of the invention;
FIG. 5 is a fragmentary elevational view, partially cut-away,
particularly illustrating the drive mechanisms of the
invention;
FIG. 6 is a cross-sectional view of the barrier arm taken about the
line 6--6 of FIG. 5;
FIG. 7 is a fragmentary cross-sectional view taken about the line
7--7 of FIG. 5;
FIG. 8 is a fragmentary detail view illustrating the structures of
the invention;
FIG. 9 is a vertical sectional view taken about the line 9--9 of
FIG. 8;
FIG. 10 is a detailed view illustrating lighting mechanisms
utilized in the construction; and,
FIG. 11 is a plan view of a gear structure utilized in the
apparatus of the invention.
This invention generally relates to a turnstile construction of the
type including a barrier arm mounted on a movable support so that
the arm can be temporarily moved to a position permitting passage
of a person through the turnstile. The invention is particularly
concerned with the provision of drive means for the support,
particularly the provision of a drive motor which is connected to
the support. The drive connection to the support includes a
variable torque transmitting means whereby the support can be
normally driven at a set speed but with the speed being variable
depending upon any forces applied to the barrier arm by a person
moving through the turnstile. Thus, the barrier arm speed will be
automatically increased or retarded so that the drive feature can
be accomplished without in any way being detrimental to the
turnstile operation.
The turnstile construction of the invention also includes a
lighting system whereby the condition of the turnstile can be
visually determined by persons passing through the turnstile.
Specifically, the barrier arm includes light transmitting portions,
and means for varying the color of these portions so that a person
can determine whether the barrier arm is locked or unlocked and
also whether some action must be taken before the turnstile can be
used.
The means for varying the color of the barrier arm are preferably
connected to fare collecting mechanisms, and locking means for the
barrier arm are also preferably included in the same operation.
When a fare collecting condition has been fulfilled, for example,
the deposite of money or the insertion of a ticket or pass, then
the barrier arm can be unlocked and the lighting means operated to
display the unlocked condition.
The accompanying drawings illustrate the various novel features of
the invention. FIG. 1 illustrates a typical turnstile construction
including a pair of stanchions 10 located in spaced apart
relationship to form an aisle through which persons can pass.
Barrier arms 12 normally extend acrosss the aisle, and these arms
are mounted on a support rotatable about an axis extending at an
angle of 45.degree. relative to the vertical. The barrier arms
extending across the aisle each comprise one arm of a tripod
assembly of barrier arms, and in accordance with known structures,
when a person passes through the turnstile, one arm moves from a
blocking position while the next arm simultaneously moves into the
blocking position.
As shown, a barrier arm assembly may be provided on each side of a
stanchion 10 so that a plurality of aisles may be accommodated. In
the embodiment shown, a pair of barrier arms extend from opposite
sides of the aisle; however, the concepts of this invention are
also applicable to structures of the type providing only a single
arm for blocking purposes at a given time. The stanchions 10 are
formed of sheet metal, and these stanchions define hollow interiors
suitable for the incorporation of various mechanisms. Referring to
FIG. 3, the mechanisms may include a stanchion section 14 having an
input slot 16 for receiving a fare which may be in the form of
cash, a ticket, a pass, or some other acceptable device. In the
case where the fare device is to be used repeatedly, e.g. a monthly
pass card, an output slot is located at 18 so that the card or
other device will be immediately reuturned to the user. Any
suitable reading mechanism may be employed to be sure that
counterfeit cards or other spurious devices are not used.
The stanchions are adapted to receive mechanisms for supporting the
barrier arm assemblies and for holding drive mechanisms for the
barrier arms. FIGS. 2 and 5 through 11 illustrate the various
mechanisms associated with the barrier arm assemblies of this
invention. These mechanisms include a support plate 20 having the
barrier arms secured thereto by means of bolts 21. This plate
defines three arms and, as best shown in FIG. 7, each of these arms
is slotted for receiving a steel or other high strength
re-enforcing sheet 22 for the arms. The sheets 22 bisect the
respective arms, and these arms are preferably formed from a pair
of translucent plastic sections 24 secured on opposite sides of the
sheet.
The plate 20 is connected to a shaft 26, and this shaft in turn
carries a drive gear 28. A drive pinion 30 engages the threads of
the gear 28, and this pinion is mounted co-axially with gear 32. A
plate 35 mounted on the stanchion wall supports the shaft 33 which
carries this pinion and gear. The latter is driven by means of gear
34 which is mounted co-axially with gear 36 on shaft 37. A pinion
38 secured on shaft 40 imparts driving force to the gear 36.
Accordingly, rotation of the shaft 40 will result in rotation of
barrier arms 5.
The shaft 40, as best shown in FIG. 8, is connected to a drive
motor 42 through a variable torque transmitting means 44. In this
instance, the variable torque member comprises a pair of magnetic
members aligned so that the rotation of one member will result in
rotation of the other member due to the magnetic attraction between
the members. On the other hand, if the force applied against a
barrier arm were too great, this would automatically vary the speed
of shaft 40. As explained, this difference in torque could occur in
the event that a person rushed through a turnstile or in the event
that one was too slow in passing through the turnstile to the
extent that the drive motor would move a barrier arm against a
person with the person then retarding the speed of the arm.
The shaft 40 also carries a pair of sprag clutches comprising
toothed rotatable members 46 and 48 and associated pawls 50 and 52.
The pawls are pivotally connected as shown at 54 in FIG. 9. The
pawl 50 is attached to the end of core member 56 of solenoid 58,
and a tension spring 60 is also attached at the end of this core
member. The opposite end of the spring is attached to a stationary
post 62 whereby the spring tends to normally pull the core out of
the solenoid body and to thereby pivot the pawl out of contact with
the toothed member 46.
The pawl 52 is provided with a corresponding arrangement with the
solenoid 64 for this pawl being shown in FIG. 8. It will be noted,
however, that the pawls 50 and 52 are mounted on opposite sides of
the shaft 40, and the sprag clutches are such that when one of the
toothed members is engaged, the shaft 40 will rotate in only one
direction while if the other toothed member is engaged, the shaft
member will rotate only in the other direction.
It will be appreciated that the drive arrangement illustrated
particularly in FIGS. 5 and 8 provides for a substantial step-up in
load capability from the motor 42 to the barrier arm support 20.
Thus, even with a relatively low torque motor, a substantial load
is applied to the barrier arm during its operation. By adjusting
the gear sizes, a load selection is available, and the normal
operating speed of the barrier arms is also controllable.
The barrier arm construction illustrated comprises a pair of
translucent plastic halves 24 divided by the reenforcing member 22.
With this arrangement, a light source will serve to illuminate the
respective halves of the barrier arms so that any one approaching a
turnstile of the invention can visually determine whether the
turnstile is locked or unlocked or in some other condition. A
mechanism for varying the color of the barrier arm portions is
preferably employed. The ends of the halves 24 are open and the
member 24 is notched at 25 to provide freedom of movement for the
barrier arm relative to the color varying mechanism to be
described.
A light source and color varying mechanism characterized by the
features of the invention is illustrated in FIGS. 5 and 10. A bulb
66 mounted in front of a parabolic reflector 68 provides a source
of light at the end of a barrier arm when the arm is located in
blocking position. A movable fan-shaped member 70 is interposed
between the light source and the barrier arm, and this member
carries colored filters 72, 74 and 76. In the embodiments
illustrated, these filters are shown as green, amber and red
filters to illustrate a condition where the barrier arm is
unlocked, in an intermediate state, and locked. Obviously different
color schemes may be employed for indicating these or other
conditions of the construction.
The fan-shaped member 70 includes a stem portion 78, and a pin 80
is carried by this fan-shaped member. The pin 80 is received within
a slot 82 defined by a reciprocally mounted plate 84. The cores 86
of a pair of solenoids 88 are connected at opposite ends of this
plate member. When one of the solenoids is energized, the plate
member will shift to move the amber filter away from the light
source while moving a green or red filter into position. A tension
spring 90 is connected to the pin 80 so that the fan-shaped member
will be normally held in the central or "amber" position. This
intermediate position would then advise persons that the turnstile
was available for use provided a fare were deposited. An
interrupter switch 91 may be actuated when the solenoid 88 is
energized, and this switch can be connected to bulb 66 to provide
for flashing of the bulb when the arm is red thereby emphasizing
that the turnstile should not be approached from that direction.
Such switches could also be used for the other colors.
It will be noted that a separate color varying mechanism is located
on each side of the position occupied by the re-enforcing member 22
associated with a barrier arm located in the blocking position.
Accordingly, the color appearing on one side of the barrier arm may
differ from the color on the other side. This arrangement is
particularly desirable where a turnstile can be approached from
either direction but where it is only to be used in one direction.
The red filter could be located in position for showing that the
turnstile is not to be used in that direction while on the other
side, the amber and green lights will be used. With the structures
illustrated, including the color varying mechanisms and the pair of
sprag clutches, the turnstile operation is bi-directional. Thus,
the control elements for the construction can be readily set so
that the turnstile is locked against use in one direction at a
certain time of the day and then locked against use in the other
direction at another time of the day. It will also be apparent that
the sprag clutch locking arrangement permits use in both directions
at any given time on an alternative basis.
FIG. 4 provides a schematic illustration of the sequence of
operations involved in the practice of the preferred form of the
invention. It will be appreciated that various conventional circuit
elements and other controls can be utilized for purposes of
obtaining the results called for in this schematic diagram.
A direction control selector 100 is connector to power supply 102
and this direction selector is adapted to operate throat shut-off
mechanisms 104. This arrangement merely provides some means for
preventing the insertion of a fare in a throat 16 if the particular
turnstile is shut down or being used for traffic coming from the
other direction.
The power supply is also connected to color selector mechanism 106,
this mechanism being provided for operating the solenoids 88. If
desired, an emergency power supply 108 can be connected to the
light bulb 66 for illuminating the amber filters. Thus, under such
conditions, the solenoids 88 would both be de-energized, and the
emergency power would at least serve to indicate to a user that the
turnstile is not closed to traffic in either direction.
It should further be noted that whenever power is off, the
solenoids 58 and 64 are de-energized so that each sprag clutch is
unlocked. The barrier arms can then be moved in either direction by
a person pushing his way through the turnstile. Thus, under
emergency conditions, the turnstiles will automatically set
themselves for use without fare collection.
The ticket or fare collecting throat 16 is associated with a
sensing element 110 whereby certain operations are commenced as
soon as a person indicates his desire to pass through the
turnstile. A reader logic device 112 is provided to determine if
the proper fare, ticket, etc., is being used and, if not, a pulse
is sent through element 114 to the solenoid controlling the red
filter whereby the person obtains a visual indication that the
turnstile is locked against passage.
If a proper use has been made, a pulse is sent through element 116
to an output throat sensing member 118. In the case of a ticket
which is re-used several times, the ticket is removed by the
individual, and element 120 senses this removal and sends a pulse
to the color selector 106. This has the effect of de-energizing the
solenoid controlling the filter holder whereby the filter holder
automatically moves to the amber display position.
A photocell 122 directs a beam 124 across the path of movement of
the person approaching the turnstile as shown in FIG. 3. When this
beam is broken, the photocell operates to energize the solenoid
controlling the green filter whereby a visual indication that the
turnstile is unlocked is provided. The photocell also de-energizes
one of the solenoids 58 or 64 which is controlled through the
release mechanisms shown at 124.
The motor 42 may be a continuously operating motor so that upon
release of the locking pawls, the gear train associated with the
barrier arm support will immediately commence rotation of the
support. When the support has rotated through 60.degree. (one-half
a complete rotation where three barrier arms are employed), a
60.degree. re-setting mechanism 126 is operated. This re-setting
mechanism is connected to the input throat sensing unit 110 so that
unit can now receive a fare or ticket from the next person using
the turnstile. The resetting mechanism is also connected to a timer
128 which is in turn connected to alarm 129. This arrangement is
provided in the evnet that a person should remain stationary in the
turnstile for an unusual length of time. Depending on the setting
of the timer, an alarm will sound alerting an attendant if the
barrier arm movement is being impeded. A homing reset mechanism 130
is actuated when the 120.degree. movement of the support is
completed. This homing unit sends a signal to the release mechanism
unit 124 for actuating the locking solenoids 58 and or 64 so that
the barrier arm cannot be moved again until a proper fare is
provided. A signal is also sent to the 60.degree. reset mechanism
126 to set this mechanism for the next operation.
As indicated, the motor 42 may operate continuously. If desired,
however, the system may include a pulse unit 132 which receives
signals from the 60.degree. reset mechanism. The pulse unit is
connected in series with one or more motors 42 and with a motor
timer 134. The input throat sensing unit 110 will send a signal to
the motor timer whenever a person begins depositing a fare. This
arrangement serves to automatically shut off the motors if there is
any extended period of inactivity.
In accordance with a preferred form of the invention, the operation
of the re-set mechanisms described is carried out through the use
of means directly associated with the drive mechanisms for the
barrier arm support. As shown in FIG. 11, the gear 28 carries three
permanent magnets 136 situated at 120.degree. intervals. A first
reed switch structure 138 is located 60.degree. removed from the
rest position of the magnets, and accordingly, this reed switch
operates the mechanism 126 as soon as the gear 28 has moved through
60.degree. . A second reed switch mechanism 140 is located for
operation when the magnets are at the rest position so that the
reed switch 140 will serve to operate the homing reset unit 130.
More specifically, and referring to the description regarding the
schematic illustration of FIG. 4, the reed switch 138 will be
electrically connected to the resetting mechanism 126 so that
opening and closing of the reed switch contacts will control the
operation of that mechanism. Similarly, the condition of the
contacts of reed switch 140 will determine the condition of the
mechanisms comprising homing reset unit 130.
It will be understood that various changes and modifications may be
made in the above described construction which provide the
characteristics of the invention without departing from the spirit
thereof particularly as defined in the following claims.
* * * * *