EP0338145A1 - Unité d'échafaudage repliable - Google Patents

Unité d'échafaudage repliable Download PDF

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Publication number
EP0338145A1
EP0338145A1 EP88303486A EP88303486A EP0338145A1 EP 0338145 A1 EP0338145 A1 EP 0338145A1 EP 88303486 A EP88303486 A EP 88303486A EP 88303486 A EP88303486 A EP 88303486A EP 0338145 A1 EP0338145 A1 EP 0338145A1
Authority
EP
European Patent Office
Prior art keywords
struts
scaffolding unit
pair
bottom portion
pivotally connected
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.)
Granted
Application number
EP88303486A
Other languages
German (de)
English (en)
Other versions
EP0338145B1 (fr
Inventor
Takahiro Enoki
Akira Masuda
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.)
Nisso Sangyo Co Ltd
Original Assignee
Nisso Sangyo Co Ltd
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 Nisso Sangyo Co Ltd filed Critical Nisso Sangyo Co Ltd
Priority to EP88303486A priority Critical patent/EP0338145B1/fr
Priority to DE8888303486T priority patent/DE3869764D1/de
Publication of EP0338145A1 publication Critical patent/EP0338145A1/fr
Application granted granted Critical
Publication of EP0338145B1 publication Critical patent/EP0338145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/22—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by roofs or ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/045—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on profiles, e.g. I or H profiles

Definitions

  • the present invention relates to scaffolding, and more particularly to a foldable scaffolding unit for use in building construction, ship building or other construction work and provided with hook members on the rear side so that the gondola-like scaffolding unit may be suspended in a working position and may be folded into a compact size convenient to transport and to keep in storage.
  • scaffolding is fixed or suspended on the working side of the construction to be worked on, on which scaffolding a workperson can stand.
  • various conventional scaffoldings are composed of many single tubes joined together vertically and horizontally, and other parts which include relatively long parts with handrails. Due to the large number of components, the installation and dismantling of the conventional scaffolding at the working site is laborious and time-consuming and hence expensive. Further, the conventional scaffolding is inconvenient to transport and to keep in storage.
  • a foldable scaffolding unit comprising:
  • the principle of the present invention is particularly useful when embodied in a scaffolding unit such as shown in Figures 1 and 2.
  • the scaffolding unit includes four horizontal base bars 4 connected together into a rectangle so as to surround a rectangular bottom portion 5, a pair of relatively short front struts 2 each pivotally connected at one end to the respective front corner of the rectangular bottom portion 5, and a pair of relatively long rear struts 3 each pivotally connected at one end to the respective rear corner of the rectangular bottom portion 5.
  • the principle of the present invention is particularly useful when embodied in a scaffolding unit such as shown in Figures 1 and 2.
  • the scaffolding unit includes four horizontal base bars 4 connected together into a rectangle so as to surround a rectangular bottom portion 5, a pair of relatively short front struts 2 each pivotally connected at one end to the respective front corner of the rectangular bottom portion 5, and a pair of relatively long rear struts 3 each pivotally connected at one end to the respective corner of the rectangular bottom portion 5.
  • Diagonal tie members 6 and a horizontal rail 7 are pivotally mounted between the front struts 2 so as to serve respectively as braces and a handrail.
  • Pivotally connected to and extending between each of the front struts 2 and the corresponding rear struts 3 are a pair of horizontal rails 8, 9 which can serve as handrails.
  • a pair of hangers or supports 10 are supported between an upper portion of each rear strut 3 and an upper portion of the corresponding front stut 2 and each hanger or support 10 is foldable each about an intermediate pivot a .
  • the bottom portion 5 together with the front struts 2 are moved forwardly to form a gondola-type unit as shown in Figures 1 and 2.
  • both the bottom portion 5 and the front struts 2 are pulled upwardly so that the entire scaffolding unit is folded into a compact size, as shown in Figure 3.
  • a telescopic rod or chain may be used in place of the foldable support or hanger 10.
  • FIGS 4 and 5 shown an attaching device and a hook member 19.
  • An attaching device and hook member 19 is fixedly secured to the upper rear surface or upper side surface of each of the rear strut 3, and is connected to each rear strut 3 via an attachment device.
  • the attachment device comprises a hinge 18 composed of a pair of hinge plate pieces 14, 15 pivotally connected together by a pivot pin 13, each hinge plate piece 14, 15 having holes 16, 17 for receiving bolts 35.
  • the attaching device and hook member 19 includes a claw 20, a screw-threaded bolt 21 connected to the claw 20, a tube 22 in engagement with the screw bolt 21, a hook 24 screw-threadedly mounted on the screw bolt 21.
  • the claw 20 has upper and lower supporting portions 25, 26 and a rear supporting portion 27, all formed integrally with the body of the claw 20.
  • a spacer 28 is supported between these supporting portions 25, 26, 27 and is connected to the body of the claw 28 by a nut 30 and bolt 29.
  • the spacer 28 has in its central portion a slot 31 (for a purpose described below) and in its rear portion a screw-threaded hole 32 into which the screw bolt 21 inserted through a hole 33 in the portion 27.
  • Designated at 34 is a stop member which engages the bolt 21 and which prevents angular movement of the spacer 28.
  • the hinge plate piece 14 of the hinge 18 is fixedly secured to rear surface 3 a of the rear strut 3 by bolts 35 and nuts 36.
  • the other hinge plate piece 15 of the hinge 18 is inserted through the slot 31 in the spacer 28.
  • the hinge plate piece 15, the body of the claw 20, and the spacer 28 are joined together as a unit by means of the bolt 29 and the nut 30.
  • both the other hinge plate piece 15 and the hook member 19 are pivotally movable in either direction as desired about the pivot pin 13 so that the scaffolding unit can be installed either horizontally at a right angle to an I-section beam or in a horizontal inclined position relative to an I-section beam.
  • the claw 20 is connected to the rear strut 3 via the hinge 18 there is no danger that when the claw 3 is hooked and fastened to an I beam for example, reaction of the fastening force could act on the rear strut 3.
  • the hook member 19 is connected to the I-section beam H via both the claw 20 and the hook 23; that is, the scaffolding unit when in the gondola form is installed on the front surface of the I -section beam H so that a workperson may stand on the scaffolding unit for work on or around the I-section beam H .
  • the scaffolding unit is to be attached to the corner between a pair of perpendicularly intersecting I-section beams H supported on a framework
  • the scaffolding unit is attached to the I-section beams H by the two hook members 19 one ater the other in the same manner as in the example described with reference to Figures 1 and 5.
  • the hook members 19 are mounted initially at an inclined position, and each of the hook members 19 is then shifted, by turning one of the hinge plate pieces 15 of a hinge 18 through a desired angle, so as to extend perpendicularly to the respective I-section beam H . Therefore, when the hook members 19 are fastened or tightened, no reaction due to such fastening is exerted on the respective rear struts 3, thus preventing the scaffolding unit from being damaged during installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Movable Scaffolding (AREA)
EP88303486A 1988-04-18 1988-04-18 Unité d'échafaudage repliable Expired - Lifetime EP0338145B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP88303486A EP0338145B1 (fr) 1988-04-18 1988-04-18 Unité d'échafaudage repliable
DE8888303486T DE3869764D1 (de) 1988-04-18 1988-04-18 Faltbare geruest-einheit.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88303486A EP0338145B1 (fr) 1988-04-18 1988-04-18 Unité d'échafaudage repliable

Publications (2)

Publication Number Publication Date
EP0338145A1 true EP0338145A1 (fr) 1989-10-25
EP0338145B1 EP0338145B1 (fr) 1992-04-01

Family

ID=8200036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88303486A Expired - Lifetime EP0338145B1 (fr) 1988-04-18 1988-04-18 Unité d'échafaudage repliable

Country Status (2)

Country Link
EP (1) EP0338145B1 (fr)
DE (1) DE3869764D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671823A (en) * 1995-02-01 1997-09-30 Oakes; Keith L. Collapsible catwalk
CN106958345A (zh) * 2017-05-16 2017-07-18 简华炽 一种可调节刚性挂篮
JP2018076692A (ja) * 2016-11-09 2018-05-17 アルインコ株式会社 吊り足場
CN108104452A (zh) * 2018-02-07 2018-06-01 台山市东扩钢构有限公司 一种新型钢结构建筑高空作业平台装置
CN108331319A (zh) * 2018-02-07 2018-07-27 台山市东扩钢构有限公司 一种可收缩钢结构建筑高空作业平台装置
CN111056421A (zh) * 2020-01-19 2020-04-24 广西建工集团建筑工程总承包有限公司 一种起重设备专用吊篮

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH116763A (de) * 1925-11-23 1926-09-16 Josef Kral Vorrichtung zum Schutze bei Vornahme von Arbeiten ausserhalb der Fensteröffnung.
FR732827A (fr) * 1931-03-21 1932-09-26 échafaudage
US2049893A (en) * 1935-12-03 1936-08-04 Francis L Robertson Support for scaffolds or the like
CH219362A (de) * 1941-06-19 1942-02-15 Scherrer Bruno Vorrichtung zum Halten von Gerüststangen.
DE2142115A1 (de) * 1971-08-23 1973-03-08 Willi Blasek Stahlrohr-haengegeruest
US4388982A (en) * 1978-12-12 1983-06-21 Yoshihiro Yonahara Foothold device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH116763A (de) * 1925-11-23 1926-09-16 Josef Kral Vorrichtung zum Schutze bei Vornahme von Arbeiten ausserhalb der Fensteröffnung.
FR732827A (fr) * 1931-03-21 1932-09-26 échafaudage
US2049893A (en) * 1935-12-03 1936-08-04 Francis L Robertson Support for scaffolds or the like
CH219362A (de) * 1941-06-19 1942-02-15 Scherrer Bruno Vorrichtung zum Halten von Gerüststangen.
DE2142115A1 (de) * 1971-08-23 1973-03-08 Willi Blasek Stahlrohr-haengegeruest
US4388982A (en) * 1978-12-12 1983-06-21 Yoshihiro Yonahara Foothold device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671823A (en) * 1995-02-01 1997-09-30 Oakes; Keith L. Collapsible catwalk
JP2018076692A (ja) * 2016-11-09 2018-05-17 アルインコ株式会社 吊り足場
CN106958345A (zh) * 2017-05-16 2017-07-18 简华炽 一种可调节刚性挂篮
CN106958345B (zh) * 2017-05-16 2022-08-02 简华炽 一种可调节刚性挂篮
CN108104452A (zh) * 2018-02-07 2018-06-01 台山市东扩钢构有限公司 一种新型钢结构建筑高空作业平台装置
CN108331319A (zh) * 2018-02-07 2018-07-27 台山市东扩钢构有限公司 一种可收缩钢结构建筑高空作业平台装置
CN111056421A (zh) * 2020-01-19 2020-04-24 广西建工集团建筑工程总承包有限公司 一种起重设备专用吊篮

Also Published As

Publication number Publication date
DE3869764D1 (de) 1992-05-07
EP0338145B1 (fr) 1992-04-01

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