CA1298452C - Mobile folding choral riser - Google Patents

Mobile folding choral riser

Info

Publication number
CA1298452C
CA1298452C CA000573874A CA573874A CA1298452C CA 1298452 C CA1298452 C CA 1298452C CA 000573874 A CA000573874 A CA 000573874A CA 573874 A CA573874 A CA 573874A CA 1298452 C CA1298452 C CA 1298452C
Authority
CA
Canada
Prior art keywords
support frame
riser
steps
section
riser section
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 - Lifetime
Application number
CA000573874A
Other languages
English (en)
French (fr)
Inventor
Kermit H. Wilson
Rollin D. Botts
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.)
Sico Inc
Original Assignee
Sico 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 Sico Inc filed Critical Sico Inc
Application granted granted Critical
Publication of CA1298452C publication Critical patent/CA1298452C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Ladders (AREA)
  • Handcart (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Earth Drilling (AREA)
  • Hydraulic Motors (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
CA000573874A 1987-07-31 1988-08-04 Mobile folding choral riser Expired - Lifetime CA1298452C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8040887A 1987-07-31 1987-07-31
US22375688A 1988-07-27 1988-07-27
US223,756 1988-07-27

Publications (1)

Publication Number Publication Date
CA1298452C true CA1298452C (en) 1992-04-07

Family

ID=22157171

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000573874A Expired - Lifetime CA1298452C (en) 1987-07-31 1988-08-04 Mobile folding choral riser

Country Status (15)

Country Link
US (1) US4979340A (en])
EP (1) EP0381674B1 (en])
JP (1) JP2739176B2 (en])
KR (1) KR970003864B1 (en])
CN (1) CN1031333A (en])
AU (1) AU609189B2 (en])
CA (1) CA1298452C (en])
DD (1) DD292292A5 (en])
DE (1) DE3879955T2 (en])
ES (1) ES2010774A6 (en])
IN (1) IN169810B (en])
MX (1) MX171179B (en])
NZ (1) NZ225635A (en])
WO (1) WO1989001084A1 (en])
YU (1) YU147388A (en])

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325640A (en) * 1991-08-09 1994-07-05 Sico Incorporated Folding stage system
CA2101577C (en) * 1992-07-31 2005-06-07 Dale L. Taipale Modular portable stage system
JP3097015B2 (ja) * 1993-10-22 2000-10-10 株式会社コトブキ 床高可変伸縮式階段状移動観覧席
WO1995018901A1 (en) * 1994-01-10 1995-07-13 Sico Incorporated Roller assembly lift mechanism
US5660121A (en) * 1995-02-24 1997-08-26 Sico Incorporated Folding framework and support legs
US5787647A (en) * 1996-06-07 1998-08-04 Wenger Corporation Portable riser
USD441461S1 (en) 1997-02-07 2001-05-01 Greenwich Industries, L.P. Portable seating bleacher
US5810430A (en) * 1997-02-07 1998-09-22 Greenwhich Industries, L.P. Portable seating apparatus
US6024026A (en) * 1997-06-20 2000-02-15 Sico Incorporated Tri-height folding stage
US6070367A (en) * 1997-08-01 2000-06-06 Sico Incorporated Folding stage
US5960589A (en) * 1998-07-27 1999-10-05 Stadium Seating Erectors Method and apparatus for modular stadium seating support system
US6164017A (en) * 1999-01-06 2000-12-26 Sico Incorporated Adjustable linkage
USD432669S (en) * 1999-07-19 2000-10-24 Greenwich Industries, L.P. Seating housing
US6729075B2 (en) 2000-10-19 2004-05-04 Wenger Corporation Audience seating system
US7546705B1 (en) * 2003-02-26 2009-06-16 Midwest Folding Products Portable riser apparatus having a lifting and locking assembly
US7900402B2 (en) * 2006-10-04 2011-03-08 Stageright Corporation Powered dual level telescopic seating riser assembly
JP2010529335A (ja) 2007-06-08 2010-08-26 スチールデック インダストリーズ リミテッド 演壇および支持構造体
US7942419B2 (en) * 2007-12-07 2011-05-17 Gelzinis Anthony C Portable rebound ball game
US8627926B2 (en) * 2009-05-21 2014-01-14 Julian D. Gordon Method and apparatus for a stair assembly
US8413384B2 (en) * 2010-11-18 2013-04-09 Amtab Manufacturing Corporation Mobile folding choral riser with high-speed cylinder lift-assist mechanism and partially independent back railing linkage
US8474190B1 (en) * 2011-07-21 2013-07-02 Derek J. Sanderson Portable modular seating assembly
DE102012002317B4 (de) * 2012-02-06 2019-09-19 Matthias Welter Selbsttragender Transportwagen für Bühnenelemente
GB2499216A (en) * 2012-02-08 2013-08-14 Steeldeck Ind Ltd Rostrum support structure
AR086117A1 (es) * 2012-04-26 2013-11-20 Ramiro Sebastian Pachecoy Banco de suplentes
USD744271S1 (en) * 2014-03-10 2015-12-01 biljax, inc. Frame for a bleacher
CN104947867A (zh) * 2015-06-29 2015-09-30 安庆市凌康机电产品设计有限公司 一种折叠式移动阶梯装置
CN106382025B (zh) * 2016-10-28 2018-11-23 台州锐祥机械设备有限公司 一种安全性高的钢结构舞台架
CN106382024A (zh) * 2016-10-28 2017-02-08 无锡市富能金属制品有限公司 一种便于安装和拆卸的钢结构舞台架
CN106761367B (zh) * 2016-12-19 2018-08-10 深圳愚乐园现代农林科技发展有限公司 一种可组装及拆卸的梯田专用梯
MX2019014673A (es) 2017-06-09 2020-02-07 Sico Inc Sistema de plataforma portatil.
CN110386539A (zh) * 2018-04-15 2019-10-29 崔连臣 一种可调节踏板之间间距的扶梯
CN110052046B (zh) * 2019-04-23 2024-03-19 浙江佳合文化科技股份有限公司 平台与楼梯相互转化的装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1715885A (en) * 1927-10-27 1929-06-04 George A Annand Knockdown bleacher
US1823484A (en) * 1930-03-28 1931-09-15 Blumenthal Louis Collapsible table and seat
US2009037A (en) * 1933-02-23 1935-07-23 William D Willerig Bleacher
US2061235A (en) * 1936-03-03 1936-11-17 Paul E Horn Foldable bleacher seat
US2575593A (en) * 1947-11-01 1951-11-20 John C Peery Collapsible stand
US2588783A (en) * 1948-06-29 1952-03-11 Wayne Iron Works Grandstand
US2704383A (en) * 1949-08-17 1955-03-22 Berg Willie Foldable stepped stand
US2780506A (en) * 1953-09-24 1957-02-05 Howe Folding Furniture Inc Folding sectional table with latch mechanism
US2983968A (en) * 1957-01-03 1961-05-16 Brunswick Corp Free standing folding bleacher
US3112010A (en) * 1961-10-10 1963-11-26 Patent Scaffolding Co Inc Safety ladder
DE1276067B (de) * 1963-07-04 1968-08-29 Krupp Gmbh Arbeitsbuehne, insbesondere zum Ausmauern von Konvertern und anderen metallurgischenGefaessen und OEfen
US3282378A (en) * 1964-09-14 1966-11-01 George A Pierce Safety scaffold
US3747706A (en) * 1971-11-18 1973-07-24 Wenger Corp Portable folding riser
US3747708A (en) * 1971-11-18 1973-07-24 Wenger Corp Portable folding riser
US3869835A (en) * 1974-02-15 1975-03-11 Charles Mackintosh Drawer-type grandstand arrangement
US3914909A (en) * 1974-06-14 1975-10-28 James S Mcneal Portable bleacher construction
US3974894A (en) * 1975-08-18 1976-08-17 Wenger Corporation Portable riser
US4237661A (en) * 1978-06-21 1980-12-09 Adams George F Sr Support stand for use with an above ground pool
US4361991A (en) * 1980-03-24 1982-12-07 Harold Wiese Seating and guard rail structure for bleachers
US4412403A (en) * 1982-05-21 1983-11-01 Lefranc Christiane Telescoping grandstand arrangement
US4611439A (en) * 1984-08-21 1986-09-16 Steadfast, Inc. Portable bleacher

Also Published As

Publication number Publication date
MX171179B (es) 1993-10-06
ES2010774A6 (es) 1989-12-01
EP0381674A1 (en) 1990-08-16
AU2255988A (en) 1989-03-01
AU609189B2 (en) 1991-04-26
NZ225635A (en) 1991-02-26
CN1031333A (zh) 1989-03-01
KR970003864B1 (ko) 1997-03-22
US4979340A (en) 1990-12-25
DE3879955D1 (de) 1993-05-06
KR890701858A (ko) 1989-12-22
DE3879955T2 (de) 1993-07-08
WO1989001084A1 (en) 1989-02-09
EP0381674B1 (en) 1993-03-31
YU147388A (en) 1990-10-31
DD292292A5 (de) 1991-07-25
IN169810B (en]) 1991-12-28
JP2739176B2 (ja) 1998-04-08
JPH03500069A (ja) 1991-01-10

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Legal Events

Date Code Title Description
MKEX Expiry