WO2018020309A1 - Plate-forme aérienne dotée d'une protection contre les collisions accidentelles - Google Patents

Plate-forme aérienne dotée d'une protection contre les collisions accidentelles Download PDF

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Publication number
WO2018020309A1
WO2018020309A1 PCT/IB2017/000850 IB2017000850W WO2018020309A1 WO 2018020309 A1 WO2018020309 A1 WO 2018020309A1 IB 2017000850 W IB2017000850 W IB 2017000850W WO 2018020309 A1 WO2018020309 A1 WO 2018020309A1
Authority
WO
WIPO (PCT)
Prior art keywords
operator
sensor member
control
sensor
command panel
Prior art date
Application number
PCT/IB2017/000850
Other languages
English (en)
Inventor
Riccardo Magni
Original Assignee
Magni Telescopic Handlers S.R.L.
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 Magni Telescopic Handlers S.R.L. filed Critical Magni Telescopic Handlers S.R.L.
Publication of WO2018020309A1 publication Critical patent/WO2018020309A1/fr

Links

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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
    • 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
    • B66F11/044—Working platforms suspended from booms

Definitions

  • the invention discloses an aerial platform, which is provided with a protection for the operator present thereon against possible impacts or accidental collisions with external obstacles during the platform movements.
  • Aerial platforms are known which are supported at their ends by an extendable and/or articulated operating arm provided on a self- propelled operating machine, usually on wheels, thus capable of moving independently on the ground.
  • Such types of aerial platforms usually comprise a floor, above which a determined working area for at least one worker is provided integral therewith.
  • the working area includes a control panel or console which is provided with a plurality of control and command elements which can be operated by the operator to control various functions of the machine, like the extendable arm, its position and rotation about a vertical axis, and consequently the positioning of the platform, as well as the control of the guide of the machine movement, when a self-propelled machine is concerned.
  • a working area is defined in the aerial platform, where the operator is constrained to assume a determined working position, so as to reach various controls, by which he/she can control the movement and positioning of the platform.
  • Such a working position is generally standing and allows the operator to have a good view of the operational field from above.
  • FR3007401 shows a tilting safety barrier, which is activated by the operator's forward movement toward the control panel as a result of a collision with an external object P, making the operator bend forward and thus interact physically with the tilting safety barrier which is activated and operates the controls in such a way as to substantially stop the action of the external object P.
  • This device like others that employ safety barriers as a kind of "sensors” being activated when physically hit by the operator's body due to his/her movement caused by an unexpected contact with an obstacle, present some serious drawbacks, among which a certain constructive complexity, too long reaction time between the moment of the operator's collision with the obstacle and stopping the platform, as well as the fact that the operator is hit by the obstacle without the slightest warning.
  • the main object of the present invention is to overcome the inefficiencies and limits of the prior art, in particular to generate a simple protection equipment that allows to simplify and improve the safety conditions of the operators.
  • FIG. 1 is a schematic perspective view of the embodiment
  • FIGS 2, 3 and 4 are schematic side views in vertical elevation of a self-propelled operating machine provided with an operating arm, having at its end an aerial platform equipped according to the invention, shown in three subsequent operation steps.
  • the numeral 1 indicates an aerial platform supported at the end of an operating arm 3 associated to a self-propelled operating machine 2.
  • the aerial platform includes a floor 10 with a working area for at least one operator 20 firmly arranged and defined above the floor.
  • Such working area comprises a control and command panel 1 1 and is defined by a protective space for protecting the operator 20 from any risk of possible accidental collisions.
  • the operator 20 is constrained to take a predetermined vertical operating position, to access said control and command panel 11 in front upright position.
  • the protective space that protects the operator 20 from the risk of possible accidental collisions is defined by a system that substantially comprises sensor means aimed at signalling that the operator has moved from his/her defined upright operating position.
  • the sensor means act when they are excited by a change of the upright position of the operator placed in front of the control console.
  • the interaction is carried out by ray sensors which define a virtual barrier.
  • such sensor means comprise at least a first sensor member 30 and a second sensor member 40, which act in proximity of the control and command panel 1 1 and are situated in different positions with respect to the control and command panel 1 1 , respectively.
  • the first sensor member 30 is situated and operates in proximity of the control and command panel 11 , in a lower position with respect to a second sensor member 40, which is situated in an upper position that is more advanced towards the front of the control and command panel 11 with respect to said sensor member 30.
  • the first sensor member 30 acts by activating a warning signal for the operator and by acting on the controls of the operating machine 2 significantly reducing its speed.
  • the sensor is activated as a result of the operator's movement caused by an external object 4.
  • the movement becomes a slight forward movement of the lower part of the operator's chest, that is intercepted by the first sensor member 30 constituted, in this case, by a kind of virtual barrier.
  • the activation of the first sensor is calibrated for a small movement and has a specific task of generating a warning alarm, while intervening immediately and automatically on the controls of the operating machine 2, reducing considerably its speed.
  • the second sensor member 40 is activated only as a result of the activation by the interference with a part of the body, but after the activation of the first sensor member by the operator 20, always acting on the controls of the operating machine 2 stopping completely the machine motion.
  • first sensor 30 and the second sensor 40 generate virtual barriers oriented nearly parallel to the control and command panel 11 and at predefined and adjustable distances.
  • the positions of the first sensor member 30 and the second sensor member 40 can be adjusted at least in height.
  • the first sensor member 30 and said second sensor member 40 are consist of laser ray or laser beam sensors.
  • the invention allows a protection from an unintentional collision which is much less traumatic for the operator in comparison with the prior art devices, substantially due to the advantage provided by the presence of a kind of an initial warning which not only allows the operator to "prepare himself/herself, but also reduces rapidly the speed of the machine or platform and consequently the dangerousness of the stopping stroke which is finally controlled by the activation of the second sensor member. All this considering also the inertia due to clearances.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

L'invention concerne une plate-forme aérienne dotée d'une protection contre les collisions accidentelles soutenue aux extrémités d'un bras d'actionnement (3) associé à une machine de manœuvre automotrice (2). La plate-forme aérienne comprend un sol (10) comprenant une zone de travail pour au moins un opérateur (20) solidement agencée et définie au-dessus du sol, munie d'un panneau de commande et d'ordre (11), un espace y étant défini, dans lequel l'opérateur est protégé contre d'éventuelles collisions accidentelles ; l'opérateur étant contraint d'adopter une position de manœuvre verticale prédéfinie, à l'intérieur de ladite zone de travail, pour accéder audit panneau de commande et d'ordre en position verticale avant. Un premier élément capteur (30) et un second élément capteur (40) agissant à proximité du panneau de commande et d'ordre (11) dans différentes positions sont conçus pour signaler que l'opérateur s'est déplacé de sa position de manœuvre définie.
PCT/IB2017/000850 2016-07-25 2017-07-20 Plate-forme aérienne dotée d'une protection contre les collisions accidentelles WO2018020309A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102016000077927A IT201600077927A1 (it) 2016-07-25 2016-07-25 Piattaforma aerea con protezione contro collisioni accidentali
IT102016000077927 2016-07-25

Publications (1)

Publication Number Publication Date
WO2018020309A1 true WO2018020309A1 (fr) 2018-02-01

Family

ID=57610155

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/000850 WO2018020309A1 (fr) 2016-07-25 2017-07-20 Plate-forme aérienne dotée d'une protection contre les collisions accidentelles

Country Status (2)

Country Link
IT (1) IT201600077927A1 (fr)
WO (1) WO2018020309A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111792592A (zh) * 2020-06-22 2020-10-20 中联重科股份有限公司 防挤压装置及高空作业机械
CN112357852A (zh) * 2020-11-07 2021-02-12 纪伏元 一种电力设备安装用防护型托举装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05124800A (ja) * 1991-10-31 1993-05-21 Japanic:Kk 高所作業車の安全機構
WO2012001353A1 (fr) * 2010-07-02 2012-01-05 Blue Sky Access Ltd Nacelle élévatrice dotée d'un dispositif de sécurité
US20130233645A1 (en) * 2010-12-20 2013-09-12 Jlg Industries, Inc. Work platform with protection against sustained involuntary operation
FR3007401A1 (fr) * 2013-06-25 2014-12-26 Haulotte Group Nacelle elevatrice a pupitre de commande securise

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05124800A (ja) * 1991-10-31 1993-05-21 Japanic:Kk 高所作業車の安全機構
WO2012001353A1 (fr) * 2010-07-02 2012-01-05 Blue Sky Access Ltd Nacelle élévatrice dotée d'un dispositif de sécurité
US20130233645A1 (en) * 2010-12-20 2013-09-12 Jlg Industries, Inc. Work platform with protection against sustained involuntary operation
FR3007401A1 (fr) * 2013-06-25 2014-12-26 Haulotte Group Nacelle elevatrice a pupitre de commande securise

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111792592A (zh) * 2020-06-22 2020-10-20 中联重科股份有限公司 防挤压装置及高空作业机械
CN111792592B (zh) * 2020-06-22 2021-05-28 湖南中联重科智能高空作业机械有限公司 防挤压装置及高空作业机械
CN112357852A (zh) * 2020-11-07 2021-02-12 纪伏元 一种电力设备安装用防护型托举装置

Also Published As

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