The present disclosure relates to portable seating systems, and more particularly to a powered telescopic seating riser having decks capable of being vertically raised.
Seating risers are designed for use in auditoriums, gymnasiums, and event halls, as examples, to accommodate spectators on portable seats, such as folding chairs, or on seats affixed to the risers. Certain facilities may require seating risers that are capable of being moved between a retracted position for storage and a deployed position for use.
A seating system according to an exemplary aspect of the present disclosure includes, among other things, a plurality of seating risers configured to telescope relative to one another. Further, at least one of the plurality of seating risers is a powered seating riser configured to deploy and retract the plurality of seating risers. The powered seating riser includes a belt drive system. Additionally, the plurality of seating risers are adjustable between a lowered position and a raised position.
Another seating system according to an exemplary aspect of the present disclosure includes, among other things, a plurality of seating risers adjustable between a lowered position and a raised position. The plurality of seating risers are also configured to telescope relative to one another between a deployed position and a retracted position. The system further includes an actuator mounted to a scissor lift, which is configured to adjust a vertical position of at least one of the plurality of seating risers. The actuator slides a roller of the scissor lift in a direction parallel to the deployment and retraction of the plurality of seating risers.
A method according to an exemplary aspect of the present disclosure includes, among other things, moving a plurality of seating risers to one of a deployed position and a retracted position, and adjusting a height of at least one of the plurality of seating risers between a lowered position and a raised position using a scissor lift. The scissor lift includes a roller configured to slide in a direction parallel to the direction of deployment and retraction of the seating risers.
The embodiments, examples and alternatives of the preceding paragraphs, the claims, or the following description and drawings, including any of their various aspects or respective individual features, may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments, unless such features are incompatible.
The drawings can be briefly described as follows:
An exemplary seating system 10 (which is sometimes collectively called a “riser”) has a plurality of telescopic seating risers 12A-12F configured to deploy (
Each seating riser 12A-12F (sometimes each “riser” is referred to as a “level” or a “rise”) generally includes a support structure which supports a respective deck. The decks may support spectators thereon, either directly, such as when spectators stand directly on the decks, or indirectly by way of fixed benches or removable seats, such as folding chairs.
In one example, the lower level seating risers are narrower in width and shorter in height relative to the upper level seating risers (e.g., lowest level seating riser 12A is narrower in width and shorter in height relative to seating riser 12B, and so on) to facilitate telescoping of the seating system 10 between the deployed (
In one example, one of the seating risers is a powered seating riser including a belt drive system 16. The powered seating riser is operable to drive the deployment (in the “deploy” direction, labeled in the Figures) and retraction (in the “retract” direction, also labeled in the Figures) the seating system 10, and to further laterally steer the seating risers 12A-12F side-to-side during deployment and retraction. In the disclosed non-limiting embodiment the lowest riser 12A is the powered seating riser. Although any of the seating risers 12A-12F may be a powered seating riser, the lowest riser 12A may best facilitate steering of the seating risers 12A-12F in many examples.
The overall system 10, along with the dual-belt drive system 16B, is described in U.S. patent application Ser. No. 13/315,606 (“the '606 Application”), filed Dec. 9, 2011, the entirety of which is herein incorporated by reference.
The lowest riser 112A is configured to be driven forward or rearward, and steered laterally (as needed), to move between a deployed and retracted position. In this example, the lowest riser 112A moves in response to commands from a controller 130. The upper risers 112B, 112C follow the lowest riser 112A as it moves between the deployed and retracted positions.
Further, the seating system 110 includes a plurality of actuators 114, 116, 118 (perhaps best seen in
It should be understood that the controller 130 is configured to provide the actuators 114, 116, 118, as well as the drive associated with the powered seating riser, with the appropriate instructions. In one example, a user provides instructions to the controller 130 via an interface. In another example, the controller 130 is programmed to automatically deploy and raise the risers, depending on the particular example. The controller 130 may include memory, a processor, hardware, and software necessary to receive, store, and send the appropriate instructions throughout the seating system 110.
With reference to
Opposite the connection with the deck 120, the arm 124 is slidably connected to a roller 134. The roller 134 is configured to move in a direction parallel to the “deploy” and “retract” directions. This direction of movement allows for increased range (e.g., in the vertical direction) of movement of the scissor lift. The actuator 114 is configured to longitudinally adjust the position of the roller 134, which in turn raises and lowers the deck 120. Further, the arm 126 is pivotably connected opposite the pivotable connection 132, at 136. In the lowered position, the deck 120 is provided at a height H1 above a ground surface.
In this example, the deck 138 of the second riser 112B is vertically supported by a drivable structure 139, an intermediate structure 141, and a vertical support post 142. The drivable structure 139 is connected to the intermediate structure 141 by way of one or more drivable rollers. The drivable structure 139 and the intermediate structure 141 are each configured to move in directions parallel to the “lower” and “raise” directions. In turn, the intermediate structure 141 is connected to the vertical support post 142 by a plurality of passive rollers. In this example, the actuator 116 drives the rollers of the drivable structure along the intermediate structure 141, which itself, in turn, travels along the vertical support post 142. The intermediate structure 141 allows additional vertical travel for the deck 138, however it is not required in all examples. When in the lowered position, the deck 138 is a height H2 above a ground surface.
The third seating riser 112C includes a deck 140 positioned at a height H3 in the lowered position. The deck 140 is vertically supported by a drivable structure 145, which is movable (e.g., by one or more drivable rollers) along a vertical support post 146 in response to the actuator 118. The drivable structure 145 is moveable in directions parallel to the “lower” and “raise” directions. It should be understood that the actuators 114, 116, 118 can be any type of known actuator, such as linear actuators including acme screws, ball screws, or another type of actuator including a nut moveable along a threaded shaft. Further, the linear actuator may be self-locking.
In this example, the second riser 112B vertically travels further than the third riser 112C due to the intermediate structure 141. Further, the scissor lift 122 associated with the lowest riser 112A is configured to provide the largest amount of vertical travel. The increased vertical travel associated with the lowest riser 112A allows the lowest riser 112A to vertically align with the highest riser of an adjacent seating system (which may be in a vertically lowered position).
As illustrated in
In
One example right angle gearbox G is shown in
In one example, the scissor lift 122 requires additional vertical space for packaging when the system 110 is in the lowered position. As illustrated in
Although the different examples have the specific components shown in the illustrations, embodiments of this disclosure are not limited to those particular combinations. It is possible to use some of the components or features from one of the examples in combination with features or components from another one of the examples.
One of ordinary skill in this art would understand that the above-described embodiments are exemplary and non-limiting. That is, modifications of this disclosure would come within the scope of the claims. Accordingly, the following claims should be studied to determine their true scope and content.
This application claims the benefit of U.S. Provisional Application No. 62/027,964, filed Jul. 23, 2014, the entirety of which is herein incorporated by reference.
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Number | Date | Country |
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EP 2604776 | Jun 2013 | BE |
Number | Date | Country | |
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20160024809 A1 | Jan 2016 | US |
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62027964 | Jul 2014 | US |