Queue clip for control gates

Information

  • Patent Grant
  • 6364381
  • Patent Number
    6,364,381
  • Date Filed
    Tuesday, June 15, 1999
    25 years ago
  • Date Issued
    Tuesday, April 2, 2002
    22 years ago
Abstract
A queue clip for mounting to a control gate includes a holder having a nose extending from one wall of the holder. A tongue is cantilevered off the nose and may be angled to either side of the nose. The tongue preferably supports a chain linking one crowd control gate to another. The tongue is inclined in an upward fashion to support downward chain forces. The tongue may also be angled to a particular side of the nose to allow the chain to be slid off the tongue such that a person may pass between the previously linked control gates.
Description




FIELD OF THE INVENTION




The field of the invention is queue clips and control gates of the type used to guide lines of people e.g., at parades and amusement parks.




BACKGROUND OF THE INVENTION




Control gates are commonly used, for example, at a parade, for separating the spectators from the participants, or at amusement parks, to help to guide people waiting in line.




In use, these gates may be connected together. However, they are more typically spaced apart from one another, to allow for an emergency situation where a person might need to move rapidly outwardly or away from the direction of the queue. To discourage a person from freely passing between spaced-apart gates, a chain or the like is typically used to link one end of a gate to another. For example, a yellow, lightweight plastic chain is often used at amusement parks.




Local ordinances may require the chain and queue clip for linking one control gate to another to be a “break-away” for emergencies. To comply with such a local ordinance, the chain may be modified by partially sawing through one of the links of a chain, such as the light-weight plastic chain typically employed by amusement parks, to weaken the chain enough so that it can easily break-away. Alternatively, a chain with a low breaking strength may be used. However, persons waiting in line may occasionally sit on the chain, inadvertently breaking the chain.




Accordingly, it is an object of the invention to provide an improved queue clip, or latch and chain device particularly adapted for use with control gates, that can hold the weight of persons sitting on the chain, and yet be versatile enough to break-away or release in an emergency. Other objects and advantages will appear hereinafter.




SUMMARY OF THE INVENTION




To these ends, in a first aspect of the invention, the device includes a holder having a rod angled to the holder. Although the device may be used as a latch or the like for numerous different types of gates, the device is particularly adapted for use with control gates. Accordingly, the holder of the device is preferably mounted to a control gate that is linked to another control gate via a chain. A tongue or rod of the device supports one end of the chain, which may be a hardened steel chain or the like. The rod is preferably angled to the holder for supporting downward chain forces. Hence, the latch and chain will not release if a person sits on the chain.




The rod is also angled to the holder for slidably releasing the chain in one direction or to one side of the holder, once sufficient force is applied against the chain to make it travel up and over the tip of the rod. Accordingly, the device allows a member standing in line to briskly walk or run against one side of the chain, forcing the chain to slide off of the tongue, such that the person can freely pass between the previously linked control gates.




In a second aspect of the invention, the holder may include a pair of bores for respectively receiving the tongue or rod of the queue clip. The bores are preferably threaded. One bore is configured to open toward the front wall of the holder, whereas the second bore is configured to open toward the rear wall of the holder. Advantageously, this second preferred embodiment allows the tongue to be retained in either bore. In this manner, the user can set the queue clip and gates at pre-designated locations regardless of whether the side of the crowd control gate having the queue clip mounted thereto is facing inward to where the queue will be or outward to where the queue will be. Accordingly, queue clip need not be remounted if the direction of release of the chain is not as desired, rather, the user need only screw the tongue into the other bore.




In a third aspect of the invention, the holder may include a channel adapted to receive the tongue such that the tongue is translatable within the channel. Advantageously, this embodiment allows quick release of the chain from the tongue support without concern as to which direction a person in line may have to move in to get by the gates.











BRIEF DESCRIPTION OF THE DRAWINGS




Other objects and features of the invention will become apparent from the following detailed description taken in connection with the accompanying drawings. It should be understood, however, that the drawings are intended for the purpose of illustration only, and are not to be taken as a definition of the limits of the invention.




In the drawings, wherein the same reference number denotes the same element throughout all of the views:





FIG. 1

is a perspective view of a queue clip mounted to a control gate according to a first preferred embodiment, including a holder having a coupler mounted to another control gate;





FIG. 2

is a perspective, detailed view of the queue clip shown in

FIG. 1

;





FIG. 3

is a front, partially cut-away view of the queue clip shown in

FIG. 1

;





FIG. 4

is a left side view of the queue clip shown in

FIG. 1

;





FIG. 5

is a left side view of the queue clip shown in

FIG. 1

illustrating the chain supported by the rod in an at-rest position;





FIG. 6

illustrates the chain sliding up the rod due to an outward force acting against the chain from its at-rest position as shown in

FIG. 5

;





FIG. 7

illustrates the chain sliding up and off the rod due to a continuous outward force acting against the chain from its transitory position as shown in

FIG. 6

;





FIG. 8

is a left side view of the queue clip shown in

FIG. 1

illustrating that the chain does not slide up the rod when an inward force acts against the chain;





FIG. 9

is a perspective view of the queue clip shown in

FIG. 1

illustrating the chain supports even a large downward force;





FIG. 10

is a left side view of a queue clip according to a second preferred embodiment;





FIG. 11

is a left side view of a queue clip according to a third preferred embodiment;





FIG. 12

is a cross-sectional view of the queue clip shown in

FIG. 11

taken along line


12





12


.











DETAILED DESCRIPTION OF THE DRAWINGS




Turning now in detail to the drawings, as shown in

FIG. 1

, a queue clip


10


according to a first preferred embodiment is mounted to one side of a control gate


100


. The queue clip


10


supports one end of a chain


46


. The other end of the chain


46


may be supported by a coupler mounted to a holder, such as the coupler


64


and holder


62


illustrated in FIG.


1


. The holder


62


is mounted to a second control gate


200


spaced apart from the first control gate


100


. The control gates


100


,


200


shown in

FIG. 1

are often used to separate members of a crowd from the participants of an event, such as a parade, and may be used to help organize guests of an amusement park into one or more queues prior to purchasing a ticket, or riding on an amusement ride, etc. Although the queue clip


10


may be used as a latch or the like for other types of gates, the queue clip


10


is particularly adapted for use with control gates


100


,


200


. Accordingly, the queue clip


10


, in conjunction with a chain


46


or the like, is preferably used to link one crowd control gate


100


to another


200


.




Referring to

FIGS. 2-4

, the queue clip


10


shown in

FIG. 1

includes a holder


12


and a rod


34


angled to the holder


12


. The holder


12


includes a front wall


20


, a rear wall


22


, a left side wall


24


, a right side wall


26


, a top wall


27


, and a bottom wall


29


. The rear wall


22


of the holder


12


is preferably includes a concavity


28


for form-fitting to a post


102


of the control gate


100


. The rod


34


is angled to the holder


12


for supporting the chain


46


when a force is applied to the chain


46


in a downward direction and/or an inward direction, and for releasing the chain


46


when a force to is applied to the chain


46


in an outward direction. A “downward” force and/or direction is illustrated by the F


D


arrow in FIG.


9


. As shown in

FIG. 9

, the downward force F


D


may be due to the weight of a guest


300


sitting on the chain. As used herein, “outward” refers to a direction away from the queue or crowd. An outward force and/or direction is illustrated in

FIGS. 6-7

by the F


O


arrow. An “inward” direction and/or force is illustrated by the F


I


arrow in

FIG. 10

, which is used to refer to a direction toward the queue or crowd.




Turning in detail to

FIGS. 2-4

, the holder body


14


preferably includes a nose member


16


protruding from one of the side walls


24


,


26


of the holder


12


. As shown in the drawings, the nose


16


is extending or protruding from the left side wall


24


of the holder body


14


. The nose


16


includes an anterior wall


50


, a posterior wall


52


, a top wall


56


, a bottom wall


55


, and two opposing side walls


55


(only one of which is shown). The top wall


56


of the nose


16


may be sloped or inclined downward. Such a configuration is preferred to allow the rod or tongue


34


to be cantilevered off the side wall


24


of the holder


12


, and more particularly the top wall


56


of the nose


16


while maintaining the desired angular relationship of the rod


34


to the holder body


14


.




As shown in

FIG. 3

, the tongue


34


is cantilevered off of the top wall


56


of the nose


16


such that it extends upwardly toward the top wall


27


of the body


14


.

FIG. 3

also illustrates the tongue


34


is angled to the holder body


14


at an angle β from a y-axis in a y-z plane. The angle β is preferably in the range of about 35° to about 55° from the y-axis, and most preferably about 45°.




As shown in

FIG. 4

, the tongue


34


is also cantilevered off of the top wall


56


of the nose


16


such that it extends outwardly toward the front wall


20


of the body


14


. The tongue


34


is angled to the holder body


14


at an angle α from a y-axis in a x-y plane. The angle α is preferably in the range of about 35° to about 55° from the y-axis, and most preferably less than 45°.




Although it is preferred to have the tongue


34


integral to the holder


12


,

FIGS. 3 and 4

also illustrate that the tongue


34


may be a separate piece. Should the tongue


34


not be integral to the holder


12


, the nose


16


may include a threaded slot


32


for receiving a tongue


34


having a correspondingly threaded projection


38


at is bottom end


36


. The slot


32


may be recessed into the surface of the top wall


56


of the nose


16


to define a shoulder


60


(shown best in

FIG. 10

) against which the bottom portion of the tongue


34


is snugly adapted to fit against. Such an arrangement is preferred to allow the rod


34


to counteract torsional forces applied against the chain


46


.




The queue clip


10


may include a spring-loaded retaining lever


42


mounted to two opposing arms or extensions


30


near the top wall


27


of the holder body


14


. Each arm


30


extends upwardly from a respective side wall


24


,


26


to provide clearance for the lever


42


to rotate about the top wall


27


. The bias of the spring


44


allows the lever


42


to counteract nominal or small forces applied against the chain


46


. In this manner, the chain


46


will be supported by the rod


34


until a sufficient force makes contact with the chain


46


that is greater than the load applied by the spring


44


. Such a force, for example, may be due to someone walking briskly into, or pushing horizontally on, the chain


46


.




To install the queue clip


10


, the user drills two holes through the side of the gate


100


and the queue clip


10


is secured with fasteners, such as fasteners


90


illustrated in

FIG. 1

which preferably include grade 8 bolts and nylon retaining nuts. Each bolt of the fasteners


90


is inserted through a mounting bore


92


that passes through the holder body


14


from the front wall


20


to the rear wall


22


. The second holder


62


that includes the coupler


64


is mounted to the same side of the other control gate


200


which is spaced apart from the first control gate


100


, in a similar manner as the holder


12


of the queue clip


10


.




In use, the control gates


100


,


200


are positioned at pre-designated locations. The spring-loaded retaining lever


42


(if there is one), if lifted up and the end link of a chain (which is preferably a standard hardened steel chain


46


), is placed onto the rod or tongue


34


of the queue clip


10


. The other end of the chain


46


is attached to the coupler


64


of the second holder


62


. Assuming the coupler


64


is not a closed loop, the end link may be slipped about the open end of the coupler


64


, as shown in FIG.


1


. Alternatively, should the coupler


64


be a solid loop, the other end of the chain


46


may be attached to the coupler


64


via any means, such as a key-ring style clip or the like.





FIGS. 5-7

illustrate how the chain


46


slides up and off the rod


34


due to an outward force F


O


being applied against the chain


46


.

FIG. 5

shows the chain


46


being supported by the rod


34


in an at-rest position. In this manner, the chain


46


hangs freely such that it rests in the juncture formed by the rod


34


and the top wall


27


of the nose


16


.

FIG. 6

illustrates the chain


46


sliding up the rod


34


due to an outward force F


O


acting against the chain


46


from its at-rest position as shown in FIG.


5


.

FIG. 7

illustrates the chain


46


sliding up and off the rod


34


due to a continuous outward force F


O


acting against the chain


46


from its transitory position as shown in FIG.


6


. As shown in

FIG. 7

, sufficient outward force F


O


has been applied against the chain


46


to counteract the bias of the spring


44


of the lever


42


such that the chain


46


is able to travel up and over the tip of the rod


34


. After the chain


46


is slid off the tongue


34


and/or released by the queue clip


10


, the guest


300


, who was previously confined by the chain


46


, can now freely pass between the control gates


100


,


200


.





FIG. 8

illustrates how the chain


46


does not slide up the rod


34


when an inward force F


I


acts against the chain


46


. As shown in

FIGS. 1-9

, the rod


34


is angled to the holder


12


such that the rod or tongue


34


extends outwardly from the top wall


56


of the nose


16


toward the front wall


20


of the body


14


. Due to such an orientation, the chain


46


is not permitted to slide up the rod


34


by a person applying an inward force F


I


against the chain


46


. Such an inward force F


I


may be created, for example, by a guest


300


who wants to ride an amusement ride but does not want to wait his turn, i.e., someone who is outside of a queue and is trying to cut into the queue. Thus, the queue clip


10


shown in

FIGS. 1-9

allows for only one direction of travel. An impatient guest


300


, therefore, cannot force inward entry between crowd control gates


100


,


200


.





FIG. 9

illustrates how the rod


34


is able to support a downward force F


D


, or a force in the vertical plane, applied against the chain


46


. In particular,

FIG. 9

shows a person or guest


300


sitting on the chain


46


. Due to the orientation of the rod angle to the holder


12


in the y-z plane and the strength of chain


46


, the weight of the guest


300


will be supported by the queue clip


10


. Thus, the queue clip


10


advantageously allows for high loads in the vertical plane, e.g., the weight of a sitting person, while being versatile enough to break-away or open up, when necessary.




Turning in detail to

FIG. 10

, a second preferred embodiment illustrates the holder


12


as having a pair of bores


80


,


82


for respectively receiving the tongue or rod


34


of the queue clip


10


. The bores


80


,


82


are preferably threaded. One bore


80


is configured to open toward the front wall


20


of the holder


12


, whereas the second bore


82


is configured to open toward the rear wall


22


of the holder


12


. Advantageously, this embodiment allows the tongue


34


to be retained in either bore


80


,


82


. In this manner, the user can set the control gates


100


,


200


at pre-designated locations regardless as to whether the side of the control gate


100


having the queue clip


10


mounted thereto is facing inward to where the queue will be or outward to where the queue will be. Accordingly, the user of this embodiment need not remount the queue clip


10


if the direction of release of the chain


34


is not as desired, rather, the user need only screw the tongue


34


into the other bore


80


or


82


.




Turning in detail to

FIGS. 11 and 12

, a third preferred embodiment illustrates the holder


12


may include a channel


66


adapted to receive the tongue


34


such that the tongue


34


is translatable within the channel


66


. The channel


66


may include a pair of socket members or chambers


68


,


70


separated by a recessed seating area


77


formed by a pair of detents


74


,


76


projecting into the channel


66


. The tongue


34


preferably includes a ball member


79


configured to fit within each of the chambers


68


,


70


. In at at-rest position, as shown in

FIG. 12

by the solid lines, the ball


79


is seated within the seating area


77


wherein the rod


34


is angled only with respect to the y-z plane (as shown for example in FIG.


3


). However, a guest in line


300


may apply sufficient pressure against the chain


46


to cause the ball member


79


to lodge into one of the two chambers


68


,


70


(as shown for example in

FIG. 12

by the dashed lines) to quickly release the chain


46


from the tongue


34


. To prevent nominal or small forces from forcing the ball


79


over one of the detents


74


,


76


and into a respective chamber


68


,


70


, a compression spring


72


may be disposed about the bottom portion of the rod


34


that is contained within the channel


66


. Advantageously, this embodiment allows quick release of the chain


46


from the tongue support


34


regardless of the guest's direction of movement.




Thus, a novel queue clip has been shown and described. Various modifications may of course be made, and various substitutions of equivalents may be used, without departing from the spirit and scope of the invention. The invention, therefore, should not be restricted, except to the following claims are their equivalents.



Claims
  • 1. A queue clip comprising:a holder having a longitudinal axis; a substantially cylindrical rod extending from the holder at an acute angle with respect to a first direction substantially perpendicular to the longitudinal axis defined by the holder, wherein the rod also extends from the holder at an acute angle with respect to a second direction substantially perpendicular to the first direction, wherein the holder includes a threaded bore for receiving the rod such that the rod is integral to the holder.
  • 2. A queue clip according to claim 1 further comprising a retaining lever mounted to the holder.
  • 3. A queue clip according to claim 1 wherein the holder includes a concave rear wall.
  • 4. A queue clip according to claim 1 wherein the holder includes a nose member having the threaded bore for receiving the rod.
  • 5. A queue clip according to claim 4 wherein the threaded bore is recessed in the surface of the nose member.
  • 6. A queue clip according to claim 1 wherein the holder includes a nose member and wherein the threaded bore includes a first threaded bore and a second threaded bore, each bore being adapted to receive the rod.
  • 7. A queue clip according to claim 6 wherein the first threaded bore is recessed in the surface of the nose member and the second threaded bore is recessed in the surface of the nose member.
  • 8. A queue clip according to claim 1 wherein the rod extends from the holder at an angle α from the axis defined by the holder in an x-y plane, wherein α is about 35° to about 55°.
  • 9. A queue clip according to claim 1 wherein the rod extends from the holder at an angle β from the axis defined by the holder in a y-z plane, wherein β is about 35° to about 55°.
  • 10. A queue clip for control gates comprising:a holder body, the body including a front wall, a rear wall opposite the front wall, a first side wall substantially perpendicular to the front wall, a second side wall opposite the first side wall, a top wall substantially perpendicular to the front wall, and a bottom wall opposite the top wall; and a cantilevered tongue being cantilevered off of the first side wall wherein the tongue extends upwardly toward the top wall, and wherein the tongue extends outwardly toward one of the front wall and the rear wall, wherein the holder body includes a nose member protruding from the first side wall of the holder body, the nose member including a threaded bore for receiving the tongue.
  • 11. A queue clip according to claim 10 wherein the threaded bore is recessed in the surface of the nose member.
  • 12. A queue clip according to claim 10 wherein the holder body includes a nose member protruding from the first side wall, the nose member including a first threaded bore adapted to receive the tongue such that when the tongue is received therein the tongue extends outwardly toward the front wall, and wherein the nose member includes a second threaded bore adapted to receive the tongue such that when the tongue is received therein the tongue extends outwardly toward the rear wall.
  • 13. A queue clip according to claim 12 wherein the first threaded bore is recessed in the surface of the nose member and the second threaded bore is recessed in the surface of the nose member.
  • 14. A queue clip according to claim 10 wherein the holder body includes a nose member protruding from the first side wall of the holder body, the nose member including a channel adapted to receive the tongue such that the tongue may be automatically oriented to extend outwardly toward one of the front wall and the rear wall.
  • 15. A queue clip according to claim 14 wherein the tongue includes a ball at one end thereof, and wherein the channel includes first and second socket members each of the socket members being adapted to receive the ball.
  • 16. A queue clip according to claim 15 wherein the channel includes a pair of detents separating the first socket member from the second socket member.
  • 17. A queue clip according to claim 16 further comprising a spring disposed about the tongue for biasing the tongue within the channel between the pair of detents.
  • 18. A queue clip according to claim 10 further comprising a retaining lever spring mounted to the first and second side walls of the holder body.
  • 19. A queue clip according to claim 10 further comprising a second holder body spaced apart from the holder body.
  • 20. A queue clip according to claim 10 wherein the tongue extends upwardly from the holder body at an angle α, wherein α is about 35° to about 55°.
  • 21. A queue clip according to claim 10 wherein the tongue extends outwardly from the holder body at an angle β, wherein β is about 35° to about 55°.
  • 22. A quick release latch comprising:a body having a front wall, a rear wall, a first side wall, and a second side wall, the body adapted for mounting to a first crowd control gate; a nose protruding from the first side wall, the nose including a top wall; a substantially cylindrical tongue extending from the top wall of the nose in an upward direction and wherein the tongue also extends in an outward direction that is substantially perpendicular to the upward direction; and a retaining lever spring mounted to the body.
  • 23. A latch according to claim 22 wherein the top wall of the nose is inclined.
  • 24. A latch according to claim 22 wherein the nose includes a threaded bore for receiving the tongue.
  • 25. A latch according to claim 22 wherein the nose includes a first threaded bore and a second threaded bore, each bore being adapted to receive the rod.
  • 26. A latch according to claim 22 wherein the nose includes a channel adapted to receive the tongue such that the tongue is pivotable within the channel.
  • 27. A latch according to claim 26 further comprising a spring disposed about the tongue for biasing the tongue within the channel.
  • 28. A queue clip for control gates comprising:a holder body for mounting to a control gate, the body including a front wall, a rear wall, a first side wall, a second side wall, a top wall, and a bottom wall, the holder body further including a nose member protruding from the first side wall of the holder body, the nose member including a channel adapted to receive the tongue; and a cantilevered tongue for supporting a chain, the tongue being cantilevered off of the first side wall wherein the tongue extends upwardly toward the top wall and outwardly toward one of the front wall and the rear wall, wherein the tongue includes a ball at one end thereof, and wherein the channel includes first and second socket members each of the socket members being adapted to receive the ball.
  • 29. A queue clip comprising:a holder having an axis; a substantially cylindrical rod extending from the holder at an acute angle with respect to a first direction substantially perpendicular to the axis defined by the holder, wherein the rod also extends from the holder at an acute angle with respect to a second direction substantially perpendicular to the first direction, wherein the holder includes a nose member having a first threaded bore and a second threaded bore, each bore being adapted to receive the rod.
  • 30. A queue clip comprising:a holder having a longitudinal axis; a substantially straight rod extending from the holder at an acute angle with respect to a first direction substantially perpendicular to the longitudinal axis defined by the holder, wherein the rod also extends from the holder at an acute angle with respect to a second direction substantially perpendicular to the first direction, wherein the holder includes a channel adapted to receive the rod such that the rod is pivotable within channel.
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