EP1070809A2 - Système de chaises pour tribune à ligne de vision variable - Google Patents

Système de chaises pour tribune à ligne de vision variable Download PDF

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Publication number
EP1070809A2
EP1070809A2 EP00306217A EP00306217A EP1070809A2 EP 1070809 A2 EP1070809 A2 EP 1070809A2 EP 00306217 A EP00306217 A EP 00306217A EP 00306217 A EP00306217 A EP 00306217A EP 1070809 A2 EP1070809 A2 EP 1070809A2
Authority
EP
European Patent Office
Prior art keywords
seating
seating level
rigid frame
level member
grandstand
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.)
Withdrawn
Application number
EP00306217A
Other languages
German (de)
English (en)
Other versions
EP1070809A3 (fr
Inventor
Hiro Nakamura
Hideaki Satake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Interkal Inc
Original Assignee
Interkal Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Interkal Inc filed Critical Interkal Inc
Publication of EP1070809A2 publication Critical patent/EP1070809A2/fr
Publication of EP1070809A3 publication Critical patent/EP1070809A3/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/12—Tribunes, grandstands or terraces for spectators
    • E04H3/126—Foldable, retractable or tiltable tribunes

Definitions

  • This invention relates generally to spectator seating systems, and more particularly, to a grandstand seating arrangement that can be displaced vertically.
  • Different sporting events require different spectator seating heights to optimize the viewing angles, i.e. , sight lines, experienced by the spectators. This is particularly the case in arenas that alternate, for example, between hockey and basketball events. It is desired that the spectator seating be made higher during hockey events than during basketball events. During a hockey event, not only does a more elevated spectator obtain a better sight line of the puck on the ice, the elevated spectator is less likely to be in the path of puck travel. In a typical arena that would hold hockey and basketball events, the seating arrangement, which is more in the nature of grandstand seating, is not movable.
  • a bleacher or grandstand seating system be vertically deployable to achieve a usable seating height, and that it be deployed downward in its entirety so that its reduced height permits it to be stored in areas having relatively low height dimensions, as would be the case with gymnasiums having mezzanines or elevated running tracks beneath which the bleacher or grandstand seating arrangements are desired to be stored.
  • an object of this invention to provide a simple seating arrangement that can be in deployed to a predetermined height within a continuous range of heights.
  • this invention provides, in a specific illustrative embodiment thereof, a grandstand seating arrangement that has a plurality of seating level members each having first and second ends and arranged in sequentially elevated relation to one another by a first predetermined height, wherein each such seating level member is disposed below an immediately superior seating level member.
  • a rigid frame is coupled to, and arranged to surround, the plurality of seating elements.
  • the rigid frame is coupled to the plurality of lifting arrangements by a corresponding plurality of couplers.
  • each of the lifting arrangements is provided with a rotatory drive for producing a torque.
  • a screw drive arrangement is coupled to the rotatory drive and is rotated thereby.
  • the screw drive arrangement is engaged with a respective one of the couplers of the rigid frame.
  • a plurality of stanchion supports each of which is associated with a respective one of the plurality of seating level members.
  • a lower stop is disposed on each of the stanchion supports and is arranged at a determined height that is responsive to the height of the associated seating level member relative to the height of the other seating level members.
  • the stanchion supports are arranged in pairs, each member of the pair being disposed at a respective end of the associated one of the seating level members. Those of the stanchion supports that are associated with the same one of the seating level members have their respective lower stops disposed at substantially the same respective height.
  • a plurality of seating level member supports each such seating level member support being coupled to, and displaceable along, the stanchion support that is associated with the respectively associated one ofthe plurality of seating level members.
  • Each of the seating level member supports is provided with a frame coupler for communicating with the rigid frame, the seating level member support being displaced along the stanchion support that is associated with the respectively associated one of the plurality of seating level members in response to displacement of the rigid frame by the plurality of lifting elements.
  • the rigid frame couples sequentially to the seating level member supports, the sequence being responsive to the heights of their associated frame couplers.
  • the rigid frame is formed of a lower frame portion that is coupled to the plurality of lifting arrangements. Additionally, there is provided an upper frame portion, coupled rigidly to the lower frame portion, for communicating with the frame couplers of the seating level member supports.
  • Forward-most ones of the seating level members are installed upon a further rigid frame that is coupled to the aforementioned rigid frame.
  • This forward rigid frame is provided with a locking support that bears at least a portion of the weight of the further rigid frame.
  • a method ofdeploying a grandstand seating arrangement of the type having a plurality of seating level members there is provided a method ofdeploying a grandstand seating arrangement of the type having a plurality of seating level members.
  • the method is provided with the steps of:
  • the step of engaging includes the further step of sequentially supporting a frame coupler of each seating level member support with the rigid frame during the step of upward driving.
  • the step of upward driving includes the step of operating a lift arrangement coupled to the rigid frame.
  • the lift arrangement is a screw jack
  • the step of upward driving includes the further step of rotating the screw jack which is coupled to the rigid frame.
  • a grandstand seating arrangement having a plurality of seating level members, each having first and second ends and arranged in sequentially elevated relation to one another by a first predetermined height. Each such seating level member is disposed below an immediately superior seating level member.
  • a rigid frame is coupled to, and arranged to surround, the plurality of seating elements. The rigid frame has a lower frame portion coupled to the plurality of lifting arrangements, and an upper frame portion coupled rigidly to the lower frame portion. A plurality of lifting arrangements is coupled to the lower frame portion of the rigid frame for displacing same vertically.
  • stanchion supports each such stanchion support being associated with a respective one of the plurality of seating level members.
  • a lower stop is disposed on each stanchion support and arranged at a respective height that is responsive to the height of the associated seating level member relative to the other seating level members.
  • a plurality of seating level member supports each support a respectively associated one of the plurality of seating level members. Each such seating level member support is coupled to, and displaceable along, the stanchion support that is associated with the respectively associated one of the plurality of seating level members.
  • the plurality of seating level member supports are arranged to be supported by associated lower stops when the lifting arrangements are in the lowermost position.
  • the lifting arrangements are operated to raise the rigid frame, the seating level member supports, and the seating levels thereon, are sequentially raised from the respective associated lower stops.
  • a further rigid frame that is coupled to the rigid frame and arranged forward thereof for supporting at least a lower one of the seating level members. Additionally, there is provided a locking support arrangement that supports the further rigid frame. The locking support arrangement, in one embodiment, is manually locked when the seating level members have reached the desired height.
  • Fig. 1 is a schematic side representation of a specific illustrative embodiment of the invention showing a grandstand seating arrangement 10 in a lowered position.
  • the grandstand seating arrangement has a plurality of stanchions 12 that are arranged vertically and the parallel to one another, one end thereof being disposed on the ground, of the stanchions having different heights arranged in a sequential progression.
  • a rigid frame 13 is shown to extend horizontally between first and second screw jacks 15 and 16, respectively.
  • Each of stanchions 12 is provided with an associated seating level member support 20 on which is installed a respective one of seating level members 22.
  • a forward rigid frame 24 on which are disposed a plurality of seating level members 26.
  • Fig. 2 is a rear view of grandstand seating arrangement 10, shown in Fig. 1. This figure has been simplified for clarity. As shown in Fig. 2,screw jacks 16 are provided at each corner of rigid frame 13. In addition, rigid frame 13 is shown to be in a lowered position whereby its associated upper frame portion 27 is disposed below rotatory drives 30 that operate the screw jacks, as described hereinbelow.
  • FIG. 3 is a schematic side representation of grandstand seating arrangement 10 of Fig. 1 shown in a raised position. Elements of structure that previously have been discussed are similarly designated.
  • This figure shows upper frame portion 27 to be in communication with a plurality of frame couplers 32 associated with respective ones of seating level member supports 20. Each of the seating level member supports, therefore, has been raised along its associated stanchion, as described hereinbelow.
  • Fig. 4 is a rear view of the embodiment of grandstand seating arrangement 10, shown in Fig. 3 This figure has been simplified for clarity.
  • screw jacks 16 are provided at each corner of rigid frame 13.
  • rigid frame 13 is shown in Fig. 4 to be in a raised position whereby its associated upper frame portion 27 is disposed above rotatory drives 30 that operate the screw jacks, as will be described hereinbelow.
  • Figs. 1-4 show that the height of an uppermost seating level 33 is not affected by the raising or lowering of rigid frame 13.
  • the height of a lowermost seating level 34 in this specific illustrative embodiment of the invention, is most greatly affected by the raising or lowering of rigid frame 13.
  • Fig. 5 is an exploded, partially fragmented, schematic representation of a grandstand seating level member 22 being supported on an associated seating level member support 20.
  • seating level member support 20 is provided with a roller arrangement 50 that is arranged to engage with a stanchion 12 so as to be axially displaceable therealong.
  • Stanchion 12 is shown to have a lower stop 52 that supports seating level member support 20 at a lowermost position.
  • the seating level member support is provided with frame coupler 32 that engages with upper frame portion 27 of rigid frame 13.
  • Fig. 6 is a simplified schematic representation that shows seating level support member 20 with seating level member 22 thereon engaged with stanchion 12, as previously described, in the lowered position. All elements of structure in a superior seating level member support 20' that bear analogous correspondence to those associated with superior seating level member support 20 are similarly designated, but with a prime (" ' "). The figure additionally shows and immediately superior seating level support member 20' that, when in the lowered position, rests upon the top of stanchion 12. Similarly, seating level member support 20 rests on and immediately inferior stanchion 12'.
  • Fig. 7 is a simplified schematic representation of screw jacks 15 and 16 showing rigid frame 13 in a raised position.
  • This figure additionally shows rotatory drives 30 coupled to one another via a drive shaft 70.
  • Rotational energy is supplied by a drive motor 72 which, in this embodiment, constitutes an electrical embodiment.
  • Each of the screw jacks is shown to have an associated one of screw gears 74 and 75 coupled to an associated one of rotatory drives 30.
  • Rigid frame 13 has a lower frame portion 76 that is coupled to couplers 78 and 79 engaged with respective ones of screw gears 74 and 75.
  • rigid frame 30 is displaced vertically.
  • Forward rigid frame 24 is coupled to rigid frame 13 and therefore also is displaced vertically in response to actuation of drive motor 72.
  • Fig. 7 additionally shows a support arm 80 that is pivotally coupled to forward rigid frame 24.
  • the support arm is provided with a roller 81 at its distal end.
  • the distal end of support arm 80 and manually be locked into the shown position by operation of a manual lock 83 that is schematically shown. This provides, in certain embodiments, additional necessary support to forward rigid frame 24.
  • Fig 8 is a schematic representation of seating level member support 20 with seating level member 22 thereon in a raised position. Elements of structure that previously have been discussed are similarly designated. A shown, frame coupler 32 is engaged with upper frame portion 27 of rigid frame 13. Thus, roller arrangement 50 has been raised above lower stop 52 of stanchion 12.
  • Fig. 9 is a schematic representation of seating level member support 20 as discussed hereinabove with respect to Fig. 8, and further showing an immediately superior seating level member support 20'.
  • lower stop 52 is disposed lower than lower stop 52'. Therefore, as rigid frame 13 was urged upward, as previously described, upper frame portion 27 engaged frame coupler 32 before it engaged frame coupler 32'. Thus, the seating level member supports are raised sequentially, depending upon their relative heights.
  • Fig. 10 is an isometric representation of screw jack 16 engaged with coupler 79, and showing rotatory drive 30.
  • the rotatory drive is coupled to screw gear 75 and causes same to rotate in response to rotation of drive shaft 70.
  • coupler 79 is shown to be disposed on an engagement member 90.
  • Fig. 11 is a perspective representation of an embodiment of the invention showing forward rigid frame 24 into the upward position supporting forward ones of seating level members 26.
  • this figure shows a forward rigid frame 24 supported by support arm 80 which is in the locked position, as previously described.
  • Upper frame portion 27 of rigid frame 13 is in its upward-most position.
  • Fig 12 is a perspective representation of an embodiment of the invention showing the grandstand seating arrangement in a raised position and the engagement between rigid frame 13 and frame couplers 32 of respective ones of seating level member supports 20.
  • the frame couplers are shown to be disposed on upper frame portion 27 of rigid frame 13. In this figure, the rigid frame is in its upward-most position.
  • Fig 13 is a perspective representation of an embodiment ofthe invention showing grandstand seating arrangement 10 in a lowered position and the engagement between seating level member supports 20 and lower stops 52 of stanchions 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Legs For Furniture In General (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP00306217A 1999-07-22 2000-07-21 Système de chaises pour tribune à ligne de vision variable Withdrawn EP1070809A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14535499P 1999-07-22 1999-07-22
US145354P 1999-07-22

Publications (2)

Publication Number Publication Date
EP1070809A2 true EP1070809A2 (fr) 2001-01-24
EP1070809A3 EP1070809A3 (fr) 2002-04-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00306217A Withdrawn EP1070809A3 (fr) 1999-07-22 2000-07-21 Système de chaises pour tribune à ligne de vision variable

Country Status (1)

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EP (1) EP1070809A3 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605037A1 (fr) * 1986-10-09 1988-04-15 Frisque Gerard Ensemble d'elements destines a l'agencement d'un lieu devant disposer alternativement d'une surface plane et d'une surface en gradins.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605037A1 (fr) * 1986-10-09 1988-04-15 Frisque Gerard Ensemble d'elements destines a l'agencement d'un lieu devant disposer alternativement d'une surface plane et d'une surface en gradins.

Also Published As

Publication number Publication date
EP1070809A3 (fr) 2002-04-10

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