US3927732A - Scaffold - Google Patents

Scaffold Download PDF

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Publication number
US3927732A
US3927732A US456875A US45687574A US3927732A US 3927732 A US3927732 A US 3927732A US 456875 A US456875 A US 456875A US 45687574 A US45687574 A US 45687574A US 3927732 A US3927732 A US 3927732A
Authority
US
United States
Prior art keywords
truck
lower section
jack
scaffold
jack means
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
US456875A
Other languages
English (en)
Inventor
Takayuki Ooka
Shinji Aihara
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding 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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Application granted granted Critical
Publication of US3927732A publication Critical patent/US3927732A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Definitions

  • the present invention relates to a scaffold and more particularly to a scaffold suitable for fillet welding of cross plates in shipbuilding.
  • scaffolds are provided by welding and fastening of bolts and nuts. These workings must be manually performed. Further, the scaffolds must be provided at every welding positions.
  • the object of the present invention is to provide a scaffold by which working may be efficiently and safely performed.
  • the scaffold can be passed through the man hole of the bulkhead and erected for working in the high position.
  • FIG. 1 is a front view of a scaffold according to the present invention
  • FIG. 2 is a plan view of the scaffold
  • FIG. 3 is a perspective view. 4
  • 1 is a truck on which a pair of telescopic jacks 2 and 2 are provided.
  • Each jack 2 is pivotally mounted on the horizontal axis having a right angle with the moving direction of the truck 1 and is adapted to be rotated by an oil hydraulic cylinder 3 between the erected position and the laid position parallel to the moving direction.
  • wheels 4 are provided so that they may be engaged with rails 5 when the jack is laid.
  • a turn table 7 is rotatably provided on the top of the jack post 6 and is adapted to be rotated by the oil hydraulic cylinder 8.
  • a telescopic scaffold 10 is provided to be rotated about the horizontal shaft, of which scaffold 11 is slidably provided to be projected from either side of the scaffold 10.
  • the scaffold 10 can be rotated by the oil hydraulic cylinder 12 so that the scaffold may be folded.
  • the railing 13 may be also folded.
  • the jack 2 is further provided with a foldable scaffold l4 and the truck 1 is provided with the oil pump 15.
  • FIG. 3 shows the condition that the scaffold according to the present invention is located in the position suitable for welding the bottom transverse l6 and the longitudinal bulkhead 17.
  • the electromagnet 18 provided on the jack post is attracted to the longitudinal bulkhead 17, so that the jack is securely held in the erected position.
  • the scaffold and jack are folded and the truck is moved to the adjacent division passing through the man hole 16a.
  • the jack since the jack can be folded, it can be moved to adjacent divisions passing through the man hole of the divisional bulkhead. Therefore welding work may be efficiently and safely performed.
  • a movable scaffold system comprising:
  • a movable supporting truck having a flat truck bed;
  • telescopic jack means having a lower section and at least one upper section, said lower section being pivotably mounted on said truck bed for pivoting about a horizontal axis between an upright position and a horizontal position, and erecting means on said bed for controlling said pivoting, said at least one upper section being telescopable into said lower section and said lower section having trackengaging means secured to said lower section for supporting said lower section on a track when said truck is moved along said track;
  • said jack means in its horizontal position lying along said bed with its upper side extending to a height no greater than that of the highest part of the remainder of said system not supported on said jack means, and having an overhanging portion extending beyond an end of said truck; and foldable scaffold means mounted to said upper section of said jack means and pivotable between a horizontal position when said jack means is upright and a folded horizontal position beneath said overhanging portion of said jack means and between said trackengaging means when said jack means is horizontal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Movable Scaffolding (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
US456875A 1973-04-05 1974-04-01 Scaffold Expired - Lifetime US3927732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973041274U JPS5324080Y2 (cs) 1973-04-05 1973-04-05

Publications (1)

Publication Number Publication Date
US3927732A true US3927732A (en) 1975-12-23

Family

ID=12603851

Family Applications (1)

Application Number Title Priority Date Filing Date
US456875A Expired - Lifetime US3927732A (en) 1973-04-05 1974-04-01 Scaffold

Country Status (5)

Country Link
US (1) US3927732A (cs)
JP (1) JPS5324080Y2 (cs)
DE (1) DE2416476A1 (cs)
FR (1) FR2224400B1 (cs)
GB (1) GB1465605A (cs)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088200A (en) * 1975-11-18 1978-05-09 John Laing And Son Limited Lifting apparatus
US4498556A (en) * 1982-09-11 1985-02-12 Access Engineering Ltd. Vertically movable, road towable work platform
US4589520A (en) * 1983-01-06 1986-05-20 Tapfer David L Platform service vehicle
US4630708A (en) * 1986-01-29 1986-12-23 Thompson George J Semi-adjustable service platform apparatus for gantry crane
US4944366A (en) * 1989-02-06 1990-07-31 D. L. Pryor & Sons, Inc. Pneumatically operated scaffolding
US5152370A (en) * 1991-01-14 1992-10-06 Silberman Cyril J Bridge docking structure for aircraft
US5318149A (en) * 1989-03-25 1994-06-07 Alfons Moog Apparatus for inspecting the underside of bridges
US5375283A (en) * 1991-01-14 1994-12-27 Silberman; Cyril J. Bridge docking structure for aircraft
US5425213A (en) * 1992-06-18 1995-06-20 Kabushikigaisha Koa Apparatus and method for uprightly securing steel frame posts
US5573080A (en) * 1994-01-12 1996-11-12 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Work car
WO1999013184A1 (en) * 1997-09-10 1999-03-18 Jlg Industries, Inc. Extendible platform arrangements for personnel lifts
US20090078502A1 (en) * 2007-09-22 2009-03-26 Frank Knurr Movable work platform
US7607513B1 (en) * 2007-11-29 2009-10-27 Elmo Rojas Telescoping lifting hand truck with a folding platform
US20130153336A1 (en) * 2011-12-14 2013-06-20 Lili Wu Personnel lift vehicle
US20130186708A1 (en) * 2011-12-14 2013-07-25 Lili Wu Personnel lift vehicle
USD730614S1 (en) 2013-11-26 2015-05-26 Big Lift, Llc. Personnel lift vehicle
US20180044927A1 (en) * 2016-08-15 2018-02-15 Silo Access Equipment Llc Silo Inspection Lift And Systems And Methods For Using Same
US20180093864A1 (en) * 2015-04-03 2018-04-05 Limited Liability Company "United Facade Company" Lifting and carrying system for maintaining building facades
US20180119432A1 (en) * 2015-05-21 2018-05-03 Salita Ip Pty Ltd Scaffold unit

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804944C2 (de) * 1978-02-06 1981-07-16 Rheiner Maschinenfabrik Windhoff Ag, 4440 Rheine Schienenverfahrbares Arbeitsgerät
DE3046467A1 (de) * 1980-12-10 1982-07-01 Ludwig Ing.(grad.) 8079 Egweil Bauch Vorrichtung zum herausziehen und hineinschieben von rohrbuendeln bei waermetauschern
FR2523566A1 (fr) * 1982-03-19 1983-09-23 Liversain Georges Nacelle a deplacement lateral par rapport a un plateau support par exemple de chariot elevateur
FR2549029B1 (fr) * 1983-07-11 1987-01-30 Comabi Sa Elevateur comportant au moins un mat telescopique
FR2567181B1 (fr) * 1984-07-06 1987-03-20 Catras Plate-forme pour l'execution de travaux a distance du sol, dans un ouvrage ayant un reseau de poteaux verticaux.
JPS62283091A (ja) * 1986-05-29 1987-12-08 Kawasaki Heavy Ind Ltd 船艙内工事方法
FR2628087B1 (fr) * 1988-03-03 1990-08-10 Beaubiat Daniel Appareil elevateur de charges, autonome, facilement repliable et portable
EP0442000B1 (de) * 1990-02-13 1994-11-23 GEBHARDT FÖRDERTECHNIK GmbH Austria Kommisionierkabine
EP0626339A1 (de) * 1993-05-26 1994-11-30 MERO-Raumstruktur GmbH & Co. Hängekran mit einer Arbeitsplattform-Konstruktion, insbesondere für die Flugzeugwartung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US710069A (en) * 1901-07-06 1902-09-30 Walter A Nickerson Fire-extinguishing and life-saving apparatus.
US713911A (en) * 1901-04-05 1902-11-18 James H Mcpartland Fire-escape with water-tower attachment.
US3596976A (en) * 1969-05-09 1971-08-03 Gen Cable Corp Vehicle construction for use with aerial lift
US3747957A (en) * 1971-04-29 1973-07-24 Koehring Co Crane boom load transfer dolly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018361U (cs) * 1973-06-13 1975-02-28

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US713911A (en) * 1901-04-05 1902-11-18 James H Mcpartland Fire-escape with water-tower attachment.
US710069A (en) * 1901-07-06 1902-09-30 Walter A Nickerson Fire-extinguishing and life-saving apparatus.
US3596976A (en) * 1969-05-09 1971-08-03 Gen Cable Corp Vehicle construction for use with aerial lift
US3747957A (en) * 1971-04-29 1973-07-24 Koehring Co Crane boom load transfer dolly

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088200A (en) * 1975-11-18 1978-05-09 John Laing And Son Limited Lifting apparatus
US4498556A (en) * 1982-09-11 1985-02-12 Access Engineering Ltd. Vertically movable, road towable work platform
US4589520A (en) * 1983-01-06 1986-05-20 Tapfer David L Platform service vehicle
US4630708A (en) * 1986-01-29 1986-12-23 Thompson George J Semi-adjustable service platform apparatus for gantry crane
US4944366A (en) * 1989-02-06 1990-07-31 D. L. Pryor & Sons, Inc. Pneumatically operated scaffolding
US5318149A (en) * 1989-03-25 1994-06-07 Alfons Moog Apparatus for inspecting the underside of bridges
US5152370A (en) * 1991-01-14 1992-10-06 Silberman Cyril J Bridge docking structure for aircraft
US5375283A (en) * 1991-01-14 1994-12-27 Silberman; Cyril J. Bridge docking structure for aircraft
US5381575A (en) * 1991-01-14 1995-01-17 Silberman; Cyril J. Bridge docking structure for aircraft
US5425213A (en) * 1992-06-18 1995-06-20 Kabushikigaisha Koa Apparatus and method for uprightly securing steel frame posts
US5573080A (en) * 1994-01-12 1996-11-12 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Work car
WO1999013184A1 (en) * 1997-09-10 1999-03-18 Jlg Industries, Inc. Extendible platform arrangements for personnel lifts
US20090078502A1 (en) * 2007-09-22 2009-03-26 Frank Knurr Movable work platform
US7607513B1 (en) * 2007-11-29 2009-10-27 Elmo Rojas Telescoping lifting hand truck with a folding platform
US20130153336A1 (en) * 2011-12-14 2013-06-20 Lili Wu Personnel lift vehicle
US20130186708A1 (en) * 2011-12-14 2013-07-25 Lili Wu Personnel lift vehicle
US9440830B2 (en) * 2011-12-14 2016-09-13 Big Lift, Llc Personnel lift vehicle
US10214402B2 (en) * 2011-12-14 2019-02-26 Big Lift, Llc Personnel lift vehicle
US11420858B2 (en) * 2011-12-14 2022-08-23 Big Lift, Llc Personnel lift vehicle
USD730614S1 (en) 2013-11-26 2015-05-26 Big Lift, Llc. Personnel lift vehicle
US20180093864A1 (en) * 2015-04-03 2018-04-05 Limited Liability Company "United Facade Company" Lifting and carrying system for maintaining building facades
US10822817B2 (en) * 2015-04-03 2020-11-03 Limited Liability Company “United Facade Company” Lifting and carrying system for maintaining building facades
US20180119432A1 (en) * 2015-05-21 2018-05-03 Salita Ip Pty Ltd Scaffold unit
US20180044927A1 (en) * 2016-08-15 2018-02-15 Silo Access Equipment Llc Silo Inspection Lift And Systems And Methods For Using Same

Also Published As

Publication number Publication date
FR2224400B1 (cs) 1978-02-24
JPS49140899U (cs) 1974-12-04
DE2416476A1 (de) 1974-10-24
GB1465605A (en) 1977-02-23
FR2224400A1 (cs) 1974-10-31
JPS5324080Y2 (cs) 1978-06-21

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