WO2017194809A1 - Plate-forme mobile pour travaux entre deux supports parallèles - Google Patents

Plate-forme mobile pour travaux entre deux supports parallèles Download PDF

Info

Publication number
WO2017194809A1
WO2017194809A1 PCT/ES2017/070297 ES2017070297W WO2017194809A1 WO 2017194809 A1 WO2017194809 A1 WO 2017194809A1 ES 2017070297 W ES2017070297 W ES 2017070297W WO 2017194809 A1 WO2017194809 A1 WO 2017194809A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile platform
parallel supports
base
work
parallel
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.)
Ceased
Application number
PCT/ES2017/070297
Other languages
English (en)
Spanish (es)
Inventor
Miguel MORENO CAZORLA
Cándido ALCÁZAR MORENO
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.)
Obrascon Huarte Lain SA
Original Assignee
Obrascon Huarte Lain SA
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 Obrascon Huarte Lain SA filed Critical Obrascon Huarte Lain SA
Publication of WO2017194809A1 publication Critical patent/WO2017194809A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/166—Landings, receiving platforms
    • 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
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms

Definitions

  • the present invention refers to a mobile platform for work between two parallel supports; where the mobile platform has four vertical wheels that rest on upper surfaces of the two parallel supports, so that the mobile platform moves in a controlled manner along said parallel supports.
  • at least one operator is located on a support floor of the mobile platform to be able to control at all times the mobility and blocking of the advance of the mobile platform when necessary.
  • the invention proposes a mobile platform for work between two parallel supports comprising:
  • - a structure that includes a base with vertical wheels that rest on parallel supports; where said vertical wheels are coupled to a corner extensions extended to the base;
  • - stability devices that include at least some guide pieces that contact on opposite internal faces of the parallel supports; where said guide pieces prevent the pitching of the mobile platform during its movement;
  • anchoring devices that prevent the lifting of the mobile platform; wherein said anchoring devices include retaining elements that are faced with parts of the surface of the parallel supports;
  • the mobile platform comprises a fixed structure and in another embodiment the mobile platform is extensible.
  • the mobile platform when extensible, its base is made up of two complementary parts: a previous one and a later one; linked by a telescopic coupling; where the fencing structure consists of two parts linked by a telescopic coupling.
  • the mobile platform when extensible, further comprises a regulating device to adapt the width of the mobile platform to the distance between the two parallel supports; wherein said regulating device comprises two lateral spindles that associate the two parts of the base; and where said lateral spindles rotate by transmitting a central shaft coupled to the front part of the base.
  • a double pinion is embedded in one end portion of the central axis while a first conical pinion meshing with a second conical pinion connected to a lower handling crank is embedded in the other end portion of the central axis.
  • These two lateral spindles immobilized axially, are coupled in through holes of a longitudinal section of the front part of the base and are also coupled to nuts fixed to a longitudinal section of the rear part of the base; fixing in said lateral spindles some end sprockets linked to the double sprocket by means of two opposing chains, so that when the lower crank is turned, the movement is transmitted to the lateral spindles to adapt the width of the mobile platform to the distance between the two parallel supports .
  • the transmission device comprises two opposing telescopic axles that converge at some ends in a gearbox from which an upper crank starts, whose rotation transmits the rotating movement to two vertical driving wheels through said telescopic axes.
  • the mobile platform when extensible, includes a vertical extension located in the front of the base; where the gearbox is located at the top of said vertical extension; the mobile platform also includes an additional vertical extension integral to the back of the base; wherein said additional vertical extension has a through hole that constitutes an additional support of one of the two telescopic axes.
  • its base When the mobile platform is fixed, its base also includes the vertical extension where the gearbox is located and the additional vertical extension which also has a through hole that constitutes the additional support of one of the telescopic axes.
  • the locking device comprises an annular body integral to one of the telescopic axes; wherein said annular body has radial perforations associated with a hitch rod located and guided in a housing; and where within said housing there is located a spring tending to move the coupling rod towards an anchoring position in which said coupling rod is introduced into one of the radial holes of the annular body to block the transmission device.
  • the locking device also includes an unlocking pedal associated with the hitch rod; where the release of the release pedal against the spring resistance releases the rotation of the telescopic axes.
  • the anchoring devices comprise angular claws that articulate in upper appendages integral to the four corner extensions; counting said angular claws with first vertical branches that have ends by which they articulate in the aforementioned upper appendages, and second horizontal branches that have extreme sections that are facing staggered located in the opposite faces of parallel supports when the anchoring devices are in an active engagement position; where in an inactive position of the anchoring devices the end sections of the horizontal branches of the angular claws are not facing said steps of the parallel supports.
  • the anchoring devices are complemented by tilting bolts that ensure an active anchoring position of the angle claws; where said tilting bolts articulate at front ends in lower appendages integral to the base by below the corner extensions, while other rear ends opposite the previous ones of said tilting bolts are faced with the vertical branches of the angular claws; and where the tilting bolts rest on fixed stops in the anchor position.
  • the stability devices comprise axial dampers fixed to the corner extensions; where said axial dampers include the guiding parts that contact the facing internal faces of the parallel supports.
  • the axial dampers comprise stems that have end heads in which the guide pieces are coupled, where said stems are associated with springs housed within housings.
  • the guide pieces comprise horizontal wheels.
  • the telescopic coupling between the two parts of the base includes two parallel male elements fixed to one of the two parts of the base, while the other even part of the base has elements female, in whose interior space the two male elements are telescopically adjusted; where the male and female elements are arranged in transverse directions that are perpendicular to longitudinal directions parallel to the two parallel supports.
  • the two parts of the base of the mobile platform comprise frame-shaped structures that include two pairs of longitudinal sections and transverse sections in accordance with the male and female elements that are a continuation of the transverse sections of one of the parts of the base.
  • the base of the mobile platform includes two opposing plates that constitute a support floor for the operators; where said opposing plates are fixed to the base.
  • the two opposing plates that constitute the support floor of the operators are fixed separately to the two parts, front and rear, of the base; and where said opposing plates have opposite end sections that are linked to each other by means of a telescopic coupling as means to be able to vary the width of the mobile platform according to the distance between the pairs of parallel supports keeping the support floor without creating gaps between the opposing plates when the width of the mobile platform is varied.
  • the telescopic coupling of the opposite end sections of the two opposing plates is a tongue and groove coupling consisting of groups of fins and groups of holes in which the parallel fins fit together; where the fins and holes are located in directions parallel to the relative displacement between the two opposing plates.
  • the fencing structure comprises two facing sliding doors that are coupled, by a telescopic connection, to two collateral parts of the fencing structure fixed to two corner extensions located on the same side of the mobile platform; wherein said telescopic connection is made by pairs of horizontal tubes that are part of the two sliding doors, where said horizontal tubes are introduced and guided in other horizontal tubes of the collateral parts.
  • a collateral part of the fencing structure is fixed to the front part of the base, and the other even collateral part is fixed to the back of said base.
  • the fencing structure also includes a swing door that articulates in one of the corner extensions of the base.
  • the anchors of the swing door and sliding doors comprise folding bolts that engage in complementary holes in the closed position of said doors.
  • the corner extensions have blind perforations where lower sections of vertical bars of the fencing structure are fitted, which are fixed by means of pins that fit in opposite holes located in the corner extensions and lower sections of the vertical bars; including the fencing structure other vertical bars with broken lower sections that are anchored to a solidarity strips to the two parts of the base.
  • the fencing structure includes a vertical tubular bar, inside which an extension of the upper crank hovering above the fencing structure is housed.
  • the fencing structure is not extensible, so that in this embodiment the regulating device used to regulate the width of the mobile platform is dispensed with at the distance between the two parallel supports when the mobile platform is extensible.
  • the platform of the invention serves to eliminate and replace the proposed system of nets and ropes described in the section on the background, resulting in the guarantee of protection as a product, contributing the mobile platform of the invention substantially to the reduction of accident rate minimizing the risks of high falls and the improvement of working conditions.
  • the present invention is framed, so that with the mobile platform of the invention all risks that are not controlled with the placement and manipulation of safety nets are eliminated.
  • Figure 1 Shows a perspective view of the mobile platform for work between two parallel supports, object of the invention.
  • the mobile platform has vertical wheels that rest on upper surfaces of the two parallel supports. It comprises a device for regulating the width of the mobile platform, a transmission device for the advance and retraction of the mobile platform, a device for blocking the mobility of the mobile platform, a stability device and an anchoring devices that prevents accidental disassembly of the mobile platform.
  • Figure 2. Shows a plan view of an extendable base of the mobile platform, where the regulating device is highlighted in order to regulate the width of the mobile platform according to the distance between the two parallel supports on which the mobile platform supports.
  • Figure 3.- Shows an elevation view of the mobile platform.
  • Figure 4.- It shows another elevation view of the mobile platform opposite the view of figure 3. In this figure 4 a detail of an anchoring device is also shown.
  • Figure 5. Shows a profile view of the mobile platform of the invention.
  • Figure 6. Shows a plan view of two opposing plates on which the operators support and step on during the use of the mobile platform.
  • Figure 7. Shows an elevation view of the locking mechanism of the mobile platform.
  • Figure 8. Shows a perspective view of the locking mechanism of the mobile platform.
  • the mobile platform 1 for the placement of pieces between two parallel supports 2 comprises an extensible structure formed by a base 3 that is constituted by two complementary parts: a previous 3a and a later one 3b; linked by a telescopic coupling that includes two parallel male elements 4 fixed to one of the two parts of the base 3, while the other even part of the base 3 has female elements 5, in whose interior space the two elements are telescopically male 4.
  • the parallel supports 2 are two beams.
  • the male elements 4 and the female elements 5 are arranged in transverse directions that are perpendicular to longitudinal directions where the two parallel supports 2 meet.
  • the base 3 of the mobile platform 1 has four vertical wheels: two tractors 6, and two other 6 'that have a crazy turn.
  • the two parts of the base 3 of the mobile platform 1 comprise frame-shaped structures that include longitudinal sections 7 and transverse sections in accordance with the male elements 4 and female elements 5 which are continuation of the sections cross-sections of one of the parts of the base 3.
  • opposing grid plates 8 are fixed which constitute a support floor where the operators step on.
  • Said opposing plates 8 have opposite end sections that are linked to each other by means of a telescopic coupling that allows varying the width of the mobile platform 1 according to the distance between the pairs of parallel supports 2 ensuring the maintenance of the ground without creating gaps between the opposing plates 8 when the width of the mobile platform 1 is varied, thus avoiding accidents.
  • the telescopic coupling of the opposite end sections of the two opposing plates 8 is a tongue and groove coupling consisting of groups of fins 8a and groups of recesses 8b into which the fins 8a are fitted; where the fins 8a and the recesses 8b are located in directions parallel to the relative displacement between the two opposing plates 8. It is a tongue and groove coupling in the manner of two combs where spikes (fins 8a) of one of the combs are located in recesses 8b of the other even comb and vice versa.
  • the mobile platform 1 includes a regulating device 43 to adapt its width to the distance between the parallel supports 2.
  • Said regulating device 43 comprises two lateral spindles 9 that associate the two parts 3a, 3b of the base 3, wherein said lateral spindles 9 rotate by means of the transmission of a central shaft 10 coupled to the front part 3a of the base 3.
  • a double pinion 11 is embedded in one end portion of the central axis while a first first portion of the central axis 10 is embedded conical pinion 12 that meshes with a second conical pinion 13 connected to a lower crank 14 so that the width of the mobile platform 1 can vary with its rotation according to the distance between the two parallel supports 2 on which the mobile platform 1 supports.
  • two lateral spindles 9, axially immobilized are coupled in through holes of two longitudinal sections 7 of the front part 3a of the base 3 and also In addition, they are coupled to nuts 15 fixed to one of the longitudinal sections 7 of the back 3b of the base 3, while at said lateral spindles 9 end pinions 16 linked to the double pinion 11 are fixed by two opposite chains 17 .
  • the regulating device 43 When the regulating device 43 is actuated by manually turning the lower crank 14, its movement is transmitted to the two lateral spindles 9 arranged in parallel, where their turns cause a relative displacement in opposition to the two parts 3a, 3b of the base 3 of the mobile platform 1 to adapt its width to the distance between the two parallel supports 2.
  • the tension of the two chains 17 is maintained by means of crazy sprockets coupled in integral axes to the front part 3a of the base 3.
  • the mobile platform 1 includes a transmission device 44 that transmits mobility to the two vertical drive wheels 6 to be able to move said mobile platform 1 along the two parallel supports 2, where said transmission device comprises two telescopic axes 18 in opposition which converge at some ends in a gearbox 19 from which an upper crank 20 starts, whose rotation transmits the rotating movement to the vertical drive wheels 6 to move the mobile platform 1 along the parallel supports 2.
  • the gearbox Gears 19 is located on top of a vertical extension 21 of the front part 3a of the base 3.
  • end sections of the two telescopic axes 18 are coupled in holes of the gearbox 19, while other end sections of said telescopic axes 18 are coupled in other through holes of two corner extensions 22 in which they are coupled the vertical drive wheels 6; also incorporating two other corner extensions 22 to couple the other two vertical wheels 6 'pairs.
  • the rear part 3b of the base 3 includes an additional vertical extension 23 integral with the rear part 3b of the base 3, where said additional vertical extension 23 has another through hole that constitutes an additional support for one of the two telescopic axes 18.
  • the four corner extensions 22 are integral to the transverse sections of the two parts 3a, 3b of the base 3, where the four vertical wheels 6, 6 'protrude outward and also said vertical wheels 6, 6' are located above said base 3.
  • the transmission device 44 is complemented by a locking device 45 which must be previously manipulated each time the mobile platform 1 is to be moved along the two parallel parallel supports 2, so that the unlocking during the movement of the mobile platform 1.
  • Said locking device 45 comprises an annular body 24 integral with one of the axes telescopic 18 located next to the additional vertical extension 23, wherein said annular body 24 has radial perforations 24a associated with a hitch rod 25 located and guided in a housing 25 'integral with the additional vertical extension 23.
  • a spring 27 is also located tending to move the coupling rod 25 towards an anchoring position in which said coupling rod 25 is inserted into one of the radial holes 24a of the annular body 24 to block the transmission device and therefore maintain in a static position the assembly of the mobile platform 1, although the parallel supports 2 are placed in an inclined plane.
  • the mobile platform 1 includes anchoring devices 46 that ensures its connection to the parallel supports 2 during use.
  • Said anchoring devices 46 comprise angular claws 28 that articulate in upper appendages 29 integral with the four corner extensions 22, where said claws have first vertical branches 28a with ends through which they articulate in said upper appendages 29 and second ones.
  • horizontal branches 28b with end sections facing upper collateral ribs 2b of the parallel supports having steps to prevent the removal of the mobile platform 1 upwards.
  • the anchoring device 46 is complemented by tilting bolts 30 which ensure an active anchoring position of the angular claws 28.
  • Said tilting bolts 30 articulate at the front ends at lower appendages 31 integral with the base 3 below the corner extensions. 22, while other rear ends opposite the previous ones are faced with the vertical branches 28a of the angular claws 28.
  • the mobile platform 1 of the invention includes stability devices 47 which they prevent the pitching of the mobile platform 1 during use and are located in correspondence with the four corner extensions 22.
  • Said stability devices 47 comprise adjustable axial dampers 33 that include horizontal wheels 34 that contact the lateral supports with internal side faces. 2. In the invention shown in the figures, they are internal side faces of collateral ribs 2b of parallel supports 2.
  • Said axial dampers 33 comprise stems with end heads 35 in which the horizontal wheels 34 are coupled, wherein said stems are associated with springs housed within housings.
  • the mobile platform 1 of the invention includes a fencing structure 48 that is fixed to the perimeter of the base 3 and also to the four corner extensions 22 that are also part of said base 3, wherein said wrap-around fencing structure comprises vertical and horizontal tubular bars that allow the extension and reduction of the width of the mobile platform 1 while maintaining the safety of the operators.
  • two opposing sides of the fencing structure 48 comprise telescopic couplings between horizontal tubes of said fencing structure 48.
  • On one side of the fencing structure 48 there is a first operator access opening that can be closed by two doors. facing slides 36 that are coupled, by a telescopic connection, to collateral parts 37 of the fencing structure 48 fixed to two corner extensions 22 located on that same side.
  • Said coupling is made by pairs of horizontal tubes that are part of the two sliding doors 36, where said horizontal tubes are introduced and guided into other horizontal tubes of the collateral parts 37.
  • the anchorage of these two sliding doors 36 facing each other is secured by a hinged bolt that fits into a complementary recess.
  • the side where the two sliding doors 36 are opposite is the side where the two telescopic axes 18 transmit the rotating movement to the two vertical tractor wheels 6; where on this side of the telescopic axes 18, the fencing structure 48 includes a vertical tubular bar 38, inside which an extension of the upper crank 20 hovering above the fencing structure 48 is housed.
  • the fencing structure 48 includes a hinged door 39 located on the side where the lower crank 14 is used to regulate the width of the mobile platform 1.
  • the anchoring of this hinged door 39 is also secured by a hinged bolt that is It fits in a complementary hole.
  • Said swing door 39 articulates in one of the corner extensions 22 of the base.
  • the corner extensions 22 have blind perforations 40 where lower sections of vertical tubular bars of the fencing structure 48 are fitted, ensuring their fixation by means of pins that fit into opposite holes located in the corner extensions 22 and lower sections of said bars vertical tubular
  • the fencing structure 48 includes other vertical bars with broken lower sections 41 that are anchored to plates 42 integral to the two outer longitudinal sections 7 of the base 3.
  • the mobile platform 1 it comprises a fixed structure that is not extensible, nor is the fencing structure 48 extensible, so that in this embodiment the regulating device 43 is used to regulate the width of the mobile platform 1 at the distance between the two parallel supports 2 when said mobile platform is extensible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

Selon la présente invention, une plate-forme mobile pour travaux entre deux supports parallèles comprend une structure qui présente une base (3) avec des roues verticales ; des dispositifs d'ancrage (46) qui évitent de hisser la plate-forme mobile (1), lesdits dispositifs d'ancrage comprenant des éléments de retenue qui sont situés face à des parties de la surface des supports parallèles (2) ; un dispositif de transmission (44) qui transmet le mouvement à la plate-forme mobile (1) pour la propulser le long des supports parallèles (2) ; un dispositif de blocage (45) qui sert à immobiliser la rotation d'au moins deux roues verticales ; et une structure de cloisonnement (48) enveloppante qui est fixée au périmètre de la base (3). Ladite plate-forme comprend en outre des dispositifs de stabilité (47) comportant au moins des pièces de guidage qui évitent le roulis de la plate-forme mobile (1) pendant son déplacement.
PCT/ES2017/070297 2016-05-12 2017-05-11 Plate-forme mobile pour travaux entre deux supports parallèles Ceased WO2017194809A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201630615A ES2641965B1 (es) 2016-05-12 2016-05-12 Plataforma móvil para trabajos entre dos soportes paralelos
ESP201630615 2016-05-12

Publications (1)

Publication Number Publication Date
WO2017194809A1 true WO2017194809A1 (fr) 2017-11-16

Family

ID=60263514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2017/070297 Ceased WO2017194809A1 (fr) 2016-05-12 2017-05-11 Plate-forme mobile pour travaux entre deux supports parallèles

Country Status (2)

Country Link
ES (1) ES2641965B1 (fr)
WO (1) WO2017194809A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487062A (zh) * 2018-03-26 2018-09-04 徐工集团工程机械有限公司 一种桥梁检测车伸缩臂的张紧导向轮装置
CN112407897A (zh) * 2020-11-06 2021-02-26 湖南五新模板有限公司 一种基于栈桥的可移动式溜槽及栈桥

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528135A (fr) * 1967-05-11 1968-06-07 Appareil de réception, avec plate-forme mobile, utilisé pour le déchargement de matériaux par une ouverture d'un bâtiment et préalablement élevés le long de la façade
US3992847A (en) * 1976-03-01 1976-11-23 B & C Construction Company, Inc. Method and apparatus for installing insulation
US4646877A (en) * 1984-09-10 1987-03-03 Whandering Metal Industries Ltd. Wheeled scaffold for workmen and building material
US4828073A (en) * 1986-03-20 1989-05-09 Friday Ronald W Mobile suspended scaffold
ES1072383U (es) * 2010-04-28 2010-07-01 Talleres Plain, S.A. Plataforma de carga deslizante para la construccion.
WO2014008532A1 (fr) * 2012-07-09 2014-01-16 Mckeon Allan Sydney Navette à plateforme de transport de charge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528135A (fr) * 1967-05-11 1968-06-07 Appareil de réception, avec plate-forme mobile, utilisé pour le déchargement de matériaux par une ouverture d'un bâtiment et préalablement élevés le long de la façade
US3992847A (en) * 1976-03-01 1976-11-23 B & C Construction Company, Inc. Method and apparatus for installing insulation
US4646877A (en) * 1984-09-10 1987-03-03 Whandering Metal Industries Ltd. Wheeled scaffold for workmen and building material
US4828073A (en) * 1986-03-20 1989-05-09 Friday Ronald W Mobile suspended scaffold
ES1072383U (es) * 2010-04-28 2010-07-01 Talleres Plain, S.A. Plataforma de carga deslizante para la construccion.
WO2014008532A1 (fr) * 2012-07-09 2014-01-16 Mckeon Allan Sydney Navette à plateforme de transport de charge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487062A (zh) * 2018-03-26 2018-09-04 徐工集团工程机械有限公司 一种桥梁检测车伸缩臂的张紧导向轮装置
CN108487062B (zh) * 2018-03-26 2020-05-01 徐工集团工程机械有限公司 一种桥梁检测车伸缩臂的张紧导向轮装置
CN112407897A (zh) * 2020-11-06 2021-02-26 湖南五新模板有限公司 一种基于栈桥的可移动式溜槽及栈桥

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Publication number Publication date
ES2641965B1 (es) 2018-09-13
ES2641965A1 (es) 2017-11-14

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