EP4031477A1 - Basket, notably aerial basket lifting device - Google Patents

Basket, notably aerial basket lifting device

Info

Publication number
EP4031477A1
EP4031477A1 EP20772365.1A EP20772365A EP4031477A1 EP 4031477 A1 EP4031477 A1 EP 4031477A1 EP 20772365 A EP20772365 A EP 20772365A EP 4031477 A1 EP4031477 A1 EP 4031477A1
Authority
EP
European Patent Office
Prior art keywords
link
platform
winding
rotary member
rotary
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
EP20772365.1A
Other languages
German (de)
French (fr)
Other versions
EP4031477B1 (en
Inventor
François MELLERIN
Stève CHARRON
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.)
Manitou BF SA
Original Assignee
Manitou BF 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 Manitou BF SA filed Critical Manitou BF SA
Publication of EP4031477A1 publication Critical patent/EP4031477A1/en
Application granted granted Critical
Publication of EP4031477B1 publication Critical patent/EP4031477B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

  • Platform in particular lifting platform
  • the present invention relates to a nacelle, in particular an elevating nacelle.
  • nacelle comprising:
  • control panel carried by the platform and equipped with at least one control of the drive system when moving the platform, which can be operated manually
  • a device for detecting the deformation of the link comprising at least one member for detecting the deformation of the link, said detection member being configured to, under the effect of a deformation of the link, go from a state called inactive in in which the operation of the control (s) of the drive system in movement of the platform is not prevented in a so-called active state in which the operation of the control (s) is prevented.
  • Nacelles in particular lifting platforms, are well known to those skilled in this art as illustrated in patent FR 2,909,084.
  • a nacelle there is a risk of injury to the operator placed on the platform when the latter, by controlling the drive system while moving the platform, collides with the rear of the head or the rear. back, an obstacle, such as a beam, which tends to pull the operator towards the control panel, the latter then finding itself sandwiched between the obstacle and the control panel with a risk of being crushed against the control panel control.
  • This problem is well known and solutions implementing a cable or a bar safety have already been devised to solve this problem as illustrated for example by patents EP 2794461 or EP 2096078.
  • the solicitation of the cable or the bar can take place, for example, when the operator standing in front of the control panel is forced to lean towards the control panel until exerting pressure on the cable.
  • such solutions present a risk of jamming between the safety cable or bar and the obstacle, once the movement of the platform has stopped.
  • An object of the invention is to provide a nacelle whose design makes it possible to limit a risk of the operator being trapped between the flexible safety link and the obstacle once the movement of the platform has stopped without harming the compactness of the link maintenance systems.
  • the invention relates to a nacelle comprising:
  • control panel carried by the platform and equipped with at least one control of the drive system for moving the platform, which can be operated manually
  • a device for detecting a deformation of the link comprising at least one member for detecting a deformation of the link, said detection member being configured to, under the effect of a deformation of the link, pass from a state called inactive in which the operation of the control (s) of the drive system in movement of the platform is not prevented in a so-called active state in which the operation of the control (s) is prevented, characterized in that at least the one, preferably each, of the holding systems comprises a rotary member for winding the link around which the link coupled to said rotary member is partially wound, said rotary member being equipped with at least one elastic return member of said configured rotary member to exert on said rotary member a driving force in angular displacement of the rotary member in the direction of winding of the link around said rotary member.
  • This rotary member for winding the link equipped with an elastic return member is therefore angularly displaceable against the action of the elastic return member in the direction of unwinding of the link of said rotary member under the action of pressure exerted on the so-called active part of the cable extending between the two retaining systems. Thanks to its design in the form of a rotating member loaded by an elastic return member, the travel of the link can be increased without increasing the size of the holding system in proportion.
  • the or at least one of the members for detecting a deformation of the link is a member for detecting the angular position of the rotary member for winding the link. one of the holding systems. It is thus possible to increase the travel of the link without increasing the reaction time of the detection member. It can in fact be allowed for the detection member to pass from the inactive state to the active state from the start of an angular displacement of the rotary member for winding the link resulting from a deformation of the link and as a result of stopping any movement of the platform while allowing the rotary member for winding the link to continue its angular displacement course in the direction of unwinding of the link of the rotary member for winding, including at the active state of the detection device.
  • the stop control of the platform can for example take place at the start or in the middle of the range of angular displacement of the rotary member for winding the link resulting from the deformation of the link by pressure exerted on the link without harming the continued angular displacement of the rotary member for winding the link in the direction of unwinding of the link.
  • the nacelle comprises a control unit with which the device for detecting a deformation of the link is configured to communicate, this control unit being configured to emit a control signal. stopping the operation of the drive system controls when moving the platform as a function of the data received from the detection device.
  • the or at least one of the members for detecting a deformation of the link is a sensor for detecting the angular position of the rotary member for winding the link.
  • this sensor being electrically connected to the control unit and being configured to send the control unit an electrical signal based on the less than the angular position of the rotary member for winding the link of said holding system.
  • the nacelle comprises a system for resetting the operation of the control (s) of the drive system for moving the platform, in the disabled state of the controls to operate, this system comprising a manually operable reset device.
  • the reset member is configured to, in the actuated state, control the drive system to move the platform in a predefined manner in order to allow the operator to disengage.
  • the rotary member for winding the link of one of the holding systems is a pulley wheel carried by a pin arranged stationary on the platform, said wheel pulley having a rim configured to receive the link coupled by one of its ends to the wheel and the elastic return member of said rotating winding member is a spring, preferably a torsion spring.
  • the elastic return member of said rotating winding member is therefore configured to exert on the wheel a force for driving the wheel in rotation in the direction of winding of the link around the wheel. Pulling on the link in the direction of unwinding of the link from the wheel therefore makes it possible to drive the wheel to which the link is coupled in movement against the return action of the spring on the wheel.
  • the nacelle comprises a stop for limiting the angular displacement of the rotary member for winding the link of one of the holding systems, said stop being configured to limit the displacement angular of the rotary member beyond a predetermined displacement stroke on the one hand, in the driven state of the rotary member clockwise, on the other hand, in the driven state of the member rotating counterclockwise.
  • the double function of the angular stop makes it possible to limit the angular displacement of the rotary member for winding the link in all situations of deformation of the link, this deformation may result from tension of the link, for example by pressure exerted on the link. link by the operator or a release of the link, for example in the case of a break in the link.
  • the nacelle comprising a stop for limiting the angular displacement of the rotary member for winding the link of one of the holding systems, said stop being configured to limit the displacement angular of the rotary member at least in the direction of an unwinding of the link of said rotary member beyond a predetermined angular displacement stroke of said rotary member, the member for detecting a deformation of the link is configured for, under the effect of a deformation of the link, change from an inactive state to an active state in an angular position of said rotary member for winding the link other than the or at least one of the angular positions of said rotary member of winding of the link corresponding to an end-of-stroke position of said rotating winding member materialized by said stopper.
  • each of the holding systems comprising a rotary member for winding the link around which the link is partially wound, and an elastic return member formed by a spring fitted to said rotary member
  • the device for detecting a deformation of the link comprising a member for detecting a deformation of the link formed by a member for detecting the angular position of the rotary member for winding the link of only one of the systems of maintaining said main retaining system
  • the stiffness of the spring equipping this main retaining system is less than the stiffness of the spring equipping the other retaining system. This results in increased sensitivity of the holding systems.
  • the nacelle is a lifting nacelle.
  • FIG. 1 is a perspective view of a nacelle according to the invention in the unsolicited state of the link
  • FIG. 2 is a perspective view of a nacelle according to the invention in the requested state of the link by the operator pushed from behind by an obstacle,
  • FIG. 3 shows a partial schematic view of a rotating member for winding a link associated with a member for detecting the deformation of the link, in the inactive state of said detection member corresponding to the unsolicited state, that is, i.e. not deformed of the link
  • FIG. 4 shows a partial schematic view of a rotating member for winding a link associated with a member for detecting the deformation of the link, in the active state of said detection member after deformation of the link in the direction of a unwinding of the link of said rotary member for winding the link, this deformation possibly resulting from pressure exerted by the operator on the link, for example in the case of a situation in accordance with FIG. 2,
  • FIG. 5 shows a partial schematic view of a rotating member for winding a link associated with a member for detecting the deformation of the link, in the active state of said detection member after deformation of the link resulting from a rupture of the link. link,
  • FIG. 6 shows in the form of blocks part of the constituent elements of the nacelle.
  • a nacelle 1 which comprises a platform 7 having a location 71 for receiving an operator 30.
  • This working platform 7 is here formed of a floor and guard -bodies surrounding the floor while allowing access to the interior of said platform.
  • the operator 30 is generally standing inside the location 71 for receiving the platform 7 and faces a control panel 3 carried by the platform 7.
  • This control panel 3 is generally arranged at a distance from the floor of the platform 7 along the guardrail of the platform 7 as illustrated in FIG. 1.
  • This control panel 3 is equipped with at least one, preferably several, manually operable controls 4 such as buttons, levers, or other. These commands 4 allow the control of a drive system 2 in displacement of the platform 7.
  • This system 2 for moving the platform 7 can affect a large number of forms depending on the type of nacelle which can be a nacelle suspended or carried by a movable frame as in the example shown in Figure 1
  • the system 2 for driving the platform 7 in movement may comprise a winch on board said nacelle and cables for suspending the nacelle using the winch.
  • the platform 7 can still be driven in elevation relative to the carrier frame 16, as in the example shown in Figure 1, to form a lifting platform 1.
  • the frame 16 is therefore a motorized frame equipped with wheels or tracks.
  • the platform 7 is connected to the frame 16 by an elevation structure comprising at least one actuator of the elevation structure.
  • Actuator and elevation structure form part of the system 2 for driving the platform 7 in motion.
  • the elevation structure here comprises at least one arm pivoting about a horizontal axis and the actuator is a cylinder. actuation of said arm extending between the arm and the frame 16. This arm is preferably a telescopic arm.
  • the controls 4 of the control panel 3 allow the control of the system 2 for driving the movement of the platform 7 by actuating the motor of the chassis 16 and / or at least one actuator of the lifting structure to allow movement of the platform 7 by moving the frame 16 on the ground and / or by moving the arm.
  • This system 2 for moving the platform 7 will not be described in more detail because it is well known to those skilled in this art.
  • the nacelle 1 further comprises a flexible safety link 5 which can be produced in the form of a cable, a belt, a chain or the like.
  • the flexible security link 5 is a cable.
  • This link 5 has two ends shown at 51 in the figures.
  • the nacelle 1 also comprises two systems 6 for maintaining the link 5 carried by the platform 7. These systems 6 for maintaining the link are arranged opposite one another. These support systems 6 are here carried by two guardrails each delimiting a vertical side of the floor of the platform 7, said sides being opposite.
  • the systems 6 for maintaining the link 5 are arranged, one at one end, the other at the other of the ends of the link 5 for maintaining the link 5 in at least one position in which the link 5 extends in the stretched state horizontally or substantially horizontally, that is to say + 20 °.
  • the link 5 thus extends substantially parallel to within + 20 ° to the support plane of the floor of the platform 7.
  • the link 5 extends through the platform 7 by connecting, for example as in the examples shown, two sides opposite verticals of the platform adjoining the platform floor. In practice, this link 5 extends through the platform 7 near the control panel 3 on the path that can be followed by a part of the body, in particular the upper part of the body of an operator standing in front of the control panel 3.
  • This link 5 thus forms a dividing line between part of the location 71 for receiving the operator of the platform 7 and the control panel 3 so that it can be called upon by the operator as soon as the latter is unbalanced towards the front, for example under the effect of a thrust in the back by an obstacle as illustrated in figure 2.
  • the systems 6 for maintaining the link may be identical or different from one maintenance system to another.
  • At least one of the retaining systems 6 comprises a rotary member 10 for winding the link 5 around which the link 5 coupled to said rotary member 10 is partially wound.
  • Said rotary member 10 is equipped with at least one member 11 for resiliently returning said rotary member 10 configured to exert on said rotary member 10 a driving force in angular displacement of the rotary member 10 in the direction of winding of the rotary member. link 5 around said rotary member 10.
  • each holding system 6 comprises a rotary member 10 for winding the link and an elastic return member 11 of the rotary member 10 for winding the link, these elements being each time housed in a box fixed to the platform.
  • the rotary member 10 for winding the link is preferably, as in the examples shown, a pulley wheel 101 carried by a pin 102 arranged stationary on the platform.
  • the pulley wheel 101 and its axle 102 are housed at least partially inside the housing carried by the platform 7 when the latter is present.
  • the wheel 101 rotates around the axis 102.
  • This wheel 101 has a rim 103 forming, for example, a groove to receive the part of the link 5 winding around the wheel 101.
  • the end 51 of the link is coupled to the wheel 101. To this end, the end 51 of the link 5 can be equipped with a cable stop fitting into a housing of the wheel 101.
  • the elastic return member 11 of the rotary winding member 10 is, for its part, an elastically deformable member which can affect a large number of shapes.
  • This return member 11 is produced here in the form of a torsion spring which at least partially winds around the stationary axis 102 of rotation of the wheel 101.
  • This spring is a hairpin spring with two branches connected by a spiral winding winding around the axis. One of the branches of the spring is supported on a fixed stop outside the wheel 101 while the other branch of the spring is coupled to the wheel 101 of the pulley.
  • the branches are resiliently biased in a position separated from one another.
  • the nacelle 1 comprises a stop 14 for limiting the angular displacement of the rotary member 10 for winding the link 5.
  • This stop 14 affects here the shape of a stud 141 circulating in a circular guide path 142 formed on the rotary member 10 for winding the link 5 and of center radius passing through the axis of rotation of the rotary member 10 for winding of the link 5.
  • This guide path 142 affects, in the examples shown, the shape of an elongated curved groove closed at each of its ends and inside which the stud 141 is disposed in the unsolicited state of the link 5 extending in the tensioned state between the retaining systems 6.
  • the stud 141 extends in the guide path 142 between the ends of the guide path 142.
  • an angular displacement of the wheel 101 relative to the pad 141 to a position in which the pad 141 bears against one end of the guide path 142 formed on the wheel 101 can take place in both direction of movement of the wheel 101.
  • the stop 14 is therefore configured to limit the angular displacement of the rotary member 10 beyond a predetermined displacement stroke, on the one hand, in the driven state of the rotary member 10 in the clockwise direction, on the other hand, to the driven state of the rotating member 10 in the counterclockwise direction.
  • the stop 14 acts as an end stop when the link is deformed by pressure exerted on the link 5 or by releasing the link 5 when, for example, the link 5 is broken.
  • Figures 4 and 5 Figure 3 illustrating the position of the stud 141 forming the stop 14 in the unsolicited state of the link 5.
  • the nacelle 1 further comprises a device 8 for detecting a deformation of the link 5.
  • This detection device 8 comprises at least one member 9 for detecting a deformation of the link 5.
  • This detection member 9 is configured to , under the effect of a deformation of the link 5, go from a so-called inactive state in which the operation of the command (s) 4 of the drive system 2 for moving the platform 7 is not prevented, it is that is to say the manual actuation by the operator of the control (s) 4, allows control of the drive system 2 in displacement of the platform in a so-called active state in which the operation of the control (s) 4 is prevented, that is to say the manual actuation of the control (s) 4 by the operator has no effect on the control of the drive system 2 in displacement of the platform 7 so that the platform 7 is at the 'stop.
  • the nacelle comprises an emergency stop button 15 fitted to the control panel.
  • This emergency stop button 15 in the state actuated by the operator prevents any power supply, in particular to the controls 4 of the control panel so that their actuation by the operator has no effect on the movement drive system. of the platform 7.
  • the member 9 for detecting a deformation of the link 5 can behave in the manner of an emergency stop button and invalidate the command (s) 4 in a manner similar to what can be expected in terms inactivation of the command (s) in the event of actuation of the emergency stop button 15.
  • the nacelle 1 comprises an electrical circuit for supplying the controls 4 of the control panel and the member 9 for detecting a deformation of the link 5 is configured to open / close said electrical circuit as a function of the angular position. of the rotary member 10 for winding the link, said controls 4 being inactive in the open state of the circuit.
  • the member 9 for detecting a deformation of the link is configured to pass from the inactive state in which it closes the circuit to the active state in which it opens the circuit under the effect of a deformation of the link 5.
  • the nacelle 1 comprises a control unit 12 with which the device 8 for detecting a deformation of the link 5 is configured to communicate.
  • This control unit 12 is configured to emit a control signal for stopping the operation of the controls 4 of the system 2 for driving the movement of the platform 7 as a function of the data received from the detection device 8.
  • the nacelle 1 can include an audible and / or light warning device and the control unit 12 can also be configured to emit a warning signal, that is to say a visual and / or audible warning signal as a function of the data received from the device 8 for detecting a deformation of the link 5 in a manner known per se.
  • the control unit 12 is an electrical and / or computer system.
  • Said control unit comprises, for example, a processor or controller, or dedicated electronic components or FPGA type components or ASIC. It is also possible to combine computer parts and electronic parts.
  • the control unit 12 can be at least partially common with a computer of the nacelle associated with the control console.
  • control unit 12 can be implemented in the form of a computer program or via hardware components (for example networks of programmable doors) implemented in, and / or forming part of said control unit 12.
  • Computer programs or computer instructions may be contained in program storage devices, for example, computer readable digital data storage media or executable programs. Programs or instructions can also be executed from program storage devices.
  • the member 9 for detecting a deformation of the link 5 is a member for detecting the angular position of the rotary member 10 for winding the link 5 of one of the systems 6 of maintenance.
  • This member 9 for detecting the angular position of the rotary member 10 for winding the link 5 can have a large number of shapes.
  • This member 9 for detecting the angular position of the rotary member 10 for winding the link 5 can be a sensor 91 for detecting the angular position of the member 10 for winding the link 5 by contact with said rotary member 10. winding of the link 5 as in the example shown where the sensor is of the push-button type with a movable part.
  • the movable part of this sensor is, in the inactive state of the sensor positioned in a notch provided on the outer circumference of the wheel 101 of the rotary member 10 for winding the link.
  • the angular displacement of the wheel 101 leads by bearing contact of the edge of the wheel 101 with the movable part formed by the sensor pusher and a movement of said movable part of the sensor and the passage of said sensor from a state inactive to an active state in which it can either open the electrical circuit, as described above, or send a signal to the control unit according to its design.
  • the senor 91 for detecting the angular position of the rotary member 10 for winding the link may be a detection sensor without contact with the rotary member 10 for winding the link 5.
  • This sensor can, in this case, be a distance or proximity sensor such as an infrared sensor, an inductive sensor, a capacitive or photo-corrective sensor or the like.
  • the passage from the inactive state to the active state of said sensor can make it possible to open the electrical circuit as mentioned above or to generate the addressing of a signal to the control unit 12. .
  • this sensor 91 for detecting the angular position of the rotary member 10 for winding the link 5 is electrically connected to the control unit 12 and is configured to address to the unit 12 of controls an electrical signal as a function at least of the angular position of the rotary member 10 for winding the link 5 around said support system 6.
  • the member 9 for detecting a deformation of the link 5 is configured to, under the effect of a deformation of the link, go from an inactive state to an active state in an angular position of said rotary member 10 for winding the link other than the or at least one of the angular positions of said rotary member 10 for winding the link 5 corresponding to an end position of said rotary member 10 for winding materialized by the stop 14.
  • the member 9 for detecting a deformation of the link 5 detects an angular displacement of the rotary member 10 and passes from the inactive state to the active state before the The rotating member 10 for winding the link can no longer move angularly under the action of the stop 14.
  • each of the holding systems 6 comprises a rotary member 10 for winding the link around which the link partially wound, and an elastic return member 11 formed by a spring 111 fitted to said rotary member 10.
  • the device 8 for detecting a deformation of the link 5 comprising a member 9 for detecting a deformation of the link 5 formed by a member 9 for detecting the angular position of the rotary member 10 for winding the link 5 is fitted with a only the maintenance systems 6 called the main maintenance system 61.
  • the stiffness of the spring 111 fitted to this main holding system 61 is less than the stiffness of the spring 111 fitted to the other holding system 6.
  • the nacelle 1 further comprises a system 13 for resetting the operation of the control (s) 4 of the drive system 2 in displacement of the platform in the prevented state of the controls 4 from operating, this system 13 comprising a member 131 of manually operable reset.
  • a nacelle 1 takes place as follows: the holding systems 6 are fixed to the platform 7 in a position in which the link 5 is in the tensioned state between the systems 6 holding and forms a substantially horizontal line separating the space arranged above the control panel 3 and the location 71 for receiving an operator 30 as shown in Figure 1. In this position, the link 5 is maintained stretched under the action of members 11 of elastic return.
  • the stop 14 is, in particular the stud 141 constituting said stop, is arranged between the ends of the guide path 142 formed on the rotary member 10 for winding the link 5 so that the rotating winding member 10 can be angularly moved clockwise or counterclockwise.
  • the member 9 for detecting a deformation of the link 5 by detecting the angular position of the rotary member 10 for winding the link is in the inactive state.
  • the movable part of the push-button is housed in the notch provided on the periphery of the wheel 101 constituting the rotary winding member 10. of link 5 as described above.
  • the link 5 Under the effect of pressure applied to the link 5 and resulting from a movement of the operator towards the control panel 3, the link 5 is generally deformed in the direction of an increase in the volume of the location 71 for receiving the operator 30.
  • This deformation of the link by pressure on the link 5 causes an angular displacement of the rotary members 10 for winding the link 5 against the action of the elastic return members 11 in the direction of unwinding of the link 5 of said rotary members 10 for winding the link 5.
  • the periphery of the rotary member 10 for winding the link in contact with the movable part of the member 9 for detecting a deformation of the link is no longer formed by the hollow of the notch. but by the edges of the notch.
  • the movement of this movable part of the detection member 9 corresponds to the passage of said member 9 for detecting a deformation of the link from an inactive state to an active state.
  • This activation is detected by the control unit 12 which emits a control signal for stopping the operation of the controls 4 of the drive system 2 in displacement of the platform 7 and therefore a stopping in displacement of the platform 7.
  • a warning device when present, can be activated and an alarm can be issued.
  • the stop movement of the platform 7 takes place before the rotary member 10 for winding the link 5 is in the end-of-travel position relative to the stop 14. It is then possible for the operator exerting additional pressure on the link 5 to generate an additional angular displacement of the rotary members 10 for winding the link and freeing up a space between, for example, an obstacle 31 which would push it in the back and the link 5. L The operator can then actuate the reset member 131 and again order a movement of the platform. This command allows the operator to disengage from the link. Once link 5 has been released from all pressure the operator, this link 5 returns to its initial position and normal operation of the nacelle can resume.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Wind Motors (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)

Abstract

Basket (1) comprising: a platform (7), a drive system (2) for moving the platform (7), a control desk (3) equipped with controls (4) of the system (2), a flexible safety link (5), two retaining systems (6) for keeping the link (5) in a position in which the link (5) extends across the platform (7), a detection device for detecting deformation of the link (5), having a detection member configured so that, under the effect of deformation of the link (5), it passes from a state referred to as inactive, in which operation of the controls (4) of the drive system (2) for moving the platform (7) is not disabled to a state referred to as active, in which said operation is disabled, one of the retaining systems (6) comprising a rotary member for winding the link (5) equipped with a return member for returning said rotary member in the direction of winding of the link (5) around said rotary member.

Description

Description Description
Titre de l'invention : Nacelle, notamment nacelle élévatriceTitle of the invention: Platform, in particular lifting platform
[0001] La présente invention concerne une nacelle, notamment une nacelle élévatrice. The present invention relates to a nacelle, in particular an elevating nacelle.
[0002] Elle concerne en particulier une nacelle comprenant : [0002] It relates in particular to a nacelle comprising:
-une plateforme présentant un emplacement de réception d’un opérateur,-a platform with a reception location for an operator,
-un système d’entraînement en déplacement de la plateforme, -a drive system for moving the platform,
-un pupitre de commande porté par la plateforme et équipé d’au moins une commande du système d’entraînement en déplacement de la plateform,e actionnable manuellement, -a control panel carried by the platform and equipped with at least one control of the drive system when moving the platform, which can be operated manually,
-un lien de sécurité flexible , -a flexible security link,
-deux systèmes de maintien du lien disposés l’un, à l’une des extrémités du lien, l’autre, à l’autre des extrémités du lien, pour un maintien du lien dans au moins une position dans laquelle le lien s’étend à travers la plateforme, à proximité du pupitre de commande, et forme une ligne de démarcation entre une partie de l’emplacement de réception d’un opérateur de la plateforme et le pupitre de commande, -two link holding systems arranged one at one end of the link, the other at the other end of the link, for maintaining the link in at least one position in which the link s' extends across the platform, close to the control console, and forms a dividing line between part of the receiving location of a platform operator and the control console,
-un dispositif de détection de la déformation du lien comprenant au moins un organe de détection de la déformation du lien, ledit organe de détection étant configuré pour, sous l’effet d’une déformation du lien, passer d’un état dit inactif dans lequel le fonctionnement de la ou des commandes du système d’entraînement en déplacement de la plateforme n’est pas empêché à un état dit actif dans lequel le fonctionnement de la ou des commandes est empêché. a device for detecting the deformation of the link comprising at least one member for detecting the deformation of the link, said detection member being configured to, under the effect of a deformation of the link, go from a state called inactive in in which the operation of the control (s) of the drive system in movement of the platform is not prevented in a so-called active state in which the operation of the control (s) is prevented.
[0003] Les nacelles, en particulier élévatrices, sont bien connues à ceux versés dans cet art comme l'illustre le brevet FR 2.909.084. Dans une telle nacelle, il existe un risque de blessure de l'opérateur placé sur la plateforme lorsque ce dernier vient, en commandant le système d’entraînement en déplacement de la plateforme, heurter, au niveau de l'arrière de la tête ou du dos, un obstacle, tel qu'une poutre, qui tend à entraîner l'opérateur vers le pupitre de commande, ce dernier se retrouvant alors pris en sandwich entre l'obstacle et le pupitre de commande avec un risque d'écrasement contre le pupitre de commande. Ce problème est parfaitement connu et des solutions mettant en œuvre un câble ou une barre de sécurité ont déjà été imaginées pour résoudre ce problème comme l’illustrent par exemple les brevets EP 2794461 ou EP 2096078. En pratique, de telles solutions permettent d’arrêter les mouvements de la plateforme lorsque l’opérateur se retrouve coincé entre l’obstacle et le pupitre de commande. Dans les documents précités, un câble ou barre, positionné devant le pupitre de commande permet, à l’état sollicité par l’opérateur, de commander l’arrêt de l’entraînement en déplacement de la plateforme généralement par inactivation des commandes du système d’entraînement en déplacement de la plateforme.[0003] Nacelles, in particular lifting platforms, are well known to those skilled in this art as illustrated in patent FR 2,909,084. In such a nacelle, there is a risk of injury to the operator placed on the platform when the latter, by controlling the drive system while moving the platform, collides with the rear of the head or the rear. back, an obstacle, such as a beam, which tends to pull the operator towards the control panel, the latter then finding itself sandwiched between the obstacle and the control panel with a risk of being crushed against the control panel control. This problem is well known and solutions implementing a cable or a bar safety have already been devised to solve this problem as illustrated for example by patents EP 2794461 or EP 2096078. In practice, such solutions make it possible to stop the movements of the platform when the operator finds himself trapped between the obstacle and the control console. In the aforementioned documents, a cable or bar, positioned in front of the control panel, makes it possible, in the state requested by the operator, to order the stopping of the drive when moving the platform, generally by inactivation of the controls of the system. 'training while moving the platform.
La sollicitation du câble ou de la barre peut s’opérer par exemple lorsque l’opérateur positionné debout devant le pupitre de commande est contraint à se pencher en direction du pupitre de commande jusqu’à exercer une pression sur le câble. De telles solutions présentent toutefois, en raison de leur conception, un risque de coincement entre le câble ou barre de sécurité et l’obstacle, une fois le déplacement de la plateforme stoppé. The solicitation of the cable or the bar can take place, for example, when the operator standing in front of the control panel is forced to lean towards the control panel until exerting pressure on the cable. However, due to their design, such solutions present a risk of jamming between the safety cable or bar and the obstacle, once the movement of the platform has stopped.
[0004] Un but de l’invention est de proposer une nacelle dont la conception permet de limiter un risque de coincement de l’opérateur entre le lien flexible de sécurité et l’obstacle une fois le déplacement de la plateforme stoppé sans nuire à la compacité des systèmes de maintien du lien. An object of the invention is to provide a nacelle whose design makes it possible to limit a risk of the operator being trapped between the flexible safety link and the obstacle once the movement of the platform has stopped without harming the compactness of the link maintenance systems.
[0005] A cet effet, l’invention a pour objet une nacelle comprenant : [0005] To this end, the invention relates to a nacelle comprising:
-une plateforme présentant un emplacement de réception d’un opérateur,-a platform with a reception location for an operator,
-un système d’entraînement en déplacement de la plateforme, -a drive system for moving the platform,
-un pupitre de commande porté par la plateforme et équipé d’au moins une commande du système d’entraînement en déplacement de la plateforme, actionnable manuellement, -a control panel carried by the platform and equipped with at least one control of the drive system for moving the platform, which can be operated manually,
-un lien de sécurité flexible , -a flexible security link,
-deux systèmes de maintien du lien disposés l’un, à l’une des extrémités du lien, l’autre, à l’autre des extrémités du lien, pour un maintien du lien dans au moins une position dans laquelle le lien s’étend à travers la plateforme et forme une ligne de démarcation entre une partie de l’emplacement de réception d’un opérateur de la plateforme et le pupitre de commande, -two link holding systems arranged one at one end of the link, the other at the other end of the link, for maintaining the link in at least one position in which the link s' extends across the platform and forms a dividing line between part of a platform operator's receiving location and the control console,
-un dispositif de détection d'une déformation du lien comprenant au moins un organe de détection d'une déformation du lien, ledit organe de détection étant configuré pour, sous l’effet d’une déformation du lien, passer d’un état dit inactif dans lequel le fonctionnement de la ou des commandes du système d’entraînement en déplacement de la plateforme n’est pas empêché à un état dit actif dans lequel le fonctionnement de la ou des commandes est empêché, caractérisée en ce qu’au moins l’un, de préférence chacun, des systèmes de maintien comprend un organe rotatif d’enroulement du lien autour duquel le lien couplé audit organe rotatif s’enroule partiellement, ledit organe rotatif étant équipé d’au moins un organe de rappel élastique dudit organe rotatif configuré pour exercer sur ledit organe rotatif un effort d’entraînement en déplacement angulaire de l’organe rotatif dans le sens d’un enroulement du lien autour dudit organe rotatif. Cet organe rotatif d’enroulement du lien équipé d’un organe de rappel élastique, tel qu’un ressort, est donc déplaçable angulairement à l’encontre de l’action de l’organe de rappel élastique dans le sens d’un déroulement du lien dudit organe rotatif sous l’action d’une pression exercée sur la partie dite active du câble s’étendant entre les deux systèmes de maintien. Grâce à sa conception sous forme d’un organe rotatif chargé par un organe de rappel élastique, la course du lien peut être accrue sans augmenter en proportion l’encombrement du système de maintien. a device for detecting a deformation of the link comprising at least one member for detecting a deformation of the link, said detection member being configured to, under the effect of a deformation of the link, pass from a state called inactive in which the operation of the control (s) of the drive system in movement of the platform is not prevented in a so-called active state in which the operation of the control (s) is prevented, characterized in that at least the one, preferably each, of the holding systems comprises a rotary member for winding the link around which the link coupled to said rotary member is partially wound, said rotary member being equipped with at least one elastic return member of said configured rotary member to exert on said rotary member a driving force in angular displacement of the rotary member in the direction of winding of the link around said rotary member. This rotary member for winding the link equipped with an elastic return member, such as a spring, is therefore angularly displaceable against the action of the elastic return member in the direction of unwinding of the link of said rotary member under the action of pressure exerted on the so-called active part of the cable extending between the two retaining systems. Thanks to its design in the form of a rotating member loaded by an elastic return member, the travel of the link can be increased without increasing the size of the holding system in proportion.
[0006] Selon un mode de réalisation de l’invention, le ou au moins l’un des organes de détection d'une déformation du lien est un organe de détection de la position angulaire de l’organe rotatif d’enroulement du lien de l’un des systèmes de maintien. Il est ainsi possible d’augmenter la course du lien sans augmenter le temps de réaction de l’organe de détection. Il peut en effet être permis à l’organe de détection de passer de l’état inactif à l’état actif dès le début d’un déplacement angulaire de l’organe rotatif d’enroulement du lien résultant d’une déformation du lien et par suite de stopper tout déplacement de la plateforme tout en permettant à l’organe rotatif d’enroulement du lien de poursuivre sa course de déplacement angulaire dans le sens d’un déroulement du lien de l’organe rotatif d’enroulement, y compris à l’état actif de l’organe de détection. Cette conception offre donc une grande souplesse en termes de commande d’arrêt du déplacement de la plateforme. La commande d'arrêt de la plateforme peut par exemple s’opérer au début ou au milieu de la plage de déplacement angulaire de l’organe rotatif d’enroulement du lien résultant de la déformation du lien par pression exercée sur le lien sans nuire à la poursuite du déplacement angulaire de l’organe rotatif d’enroulement du lien dans le sens d’un déroulement du lien. According to one embodiment of the invention, the or at least one of the members for detecting a deformation of the link is a member for detecting the angular position of the rotary member for winding the link. one of the holding systems. It is thus possible to increase the travel of the link without increasing the reaction time of the detection member. It can in fact be allowed for the detection member to pass from the inactive state to the active state from the start of an angular displacement of the rotary member for winding the link resulting from a deformation of the link and as a result of stopping any movement of the platform while allowing the rotary member for winding the link to continue its angular displacement course in the direction of unwinding of the link of the rotary member for winding, including at the active state of the detection device. This design therefore offers great flexibility in terms of stopping the movement of the platform. The stop control of the platform can for example take place at the start or in the middle of the range of angular displacement of the rotary member for winding the link resulting from the deformation of the link by pressure exerted on the link without harming the continued angular displacement of the rotary member for winding the link in the direction of unwinding of the link.
[0007] Selon un mode de réalisation de l’invention, la nacelle comprend une unité de commande avec laquelle le dispositif de détection d'une déformation du lien est configuré pour communiquer, cette unité de commande étant configurée pour émettre un signal de commande d’arrêt du fonctionnement des commandes du système d’entraînement en déplacement de la plateforme en fonction des données reçues du dispositif de détection. According to one embodiment of the invention, the nacelle comprises a control unit with which the device for detecting a deformation of the link is configured to communicate, this control unit being configured to emit a control signal. stopping the operation of the drive system controls when moving the platform as a function of the data received from the detection device.
[0008] Selon un mode de réalisation de l’invention, le ou au moins l’un des organes de détection d'une déformation du lien est un capteur de détection de la position angulaire de l’organe rotatif d’enroulement du lien de l’un des systèmes de maintien par contact avec ledit organe rotatif d'enroulement du lien ou sans contact, ce capteur étant relié électriquement à l’unité de commande et étant configuré pour adresser à l’unité de commande un signal électrique en fonction au moins de la position angulaire de l’organe rotatif d’enroulement du lien dudit système de maintien. A nouveau, cette conception de l’organe de détection d’une déformation du lien permet d’agir sur le déplacement de la plateforme dès la détection d’un déplacement angulaire de l’organe rotatif d’enroulement du lien sans nuire à la poursuite du déplacement angulaire de l’organe rotatif d’enroulement du lien dans le sens d’un déroulement du lien dudit organe rotatif d’enroulement de sorte que le risque de coincement de l’opérateur entre le lien flexible de sécurité et un obstacle, une fois le déplacement de la plateforme stoppé, est réduit du fait de la course restante permettant un dégagement du lien. According to one embodiment of the invention, the or at least one of the members for detecting a deformation of the link is a sensor for detecting the angular position of the rotary member for winding the link. one of the systems for maintaining by contact with said rotary member for winding the link or without contact, this sensor being electrically connected to the control unit and being configured to send the control unit an electrical signal based on the less than the angular position of the rotary member for winding the link of said holding system. Once again, this design of the link deformation detection member makes it possible to act on the movement of the platform as soon as an angular movement of the rotary link winding member is detected without hampering the pursuit. the angular displacement of the rotary member for winding the link in the direction of unwinding of the link of said rotary member for winding so that the risk of the operator jamming between the flexible safety link and an obstacle, a once the movement of the platform is stopped, is reduced due to the remaining travel allowing the link to be released.
[0009] Selon un mode de réalisation de l’invention, la nacelle comprend un système de réinitialisation du fonctionnement de la ou des commandes du système d’entraînement en déplacement de la plateforme, à l’état empêché des commandes de fonctionner, ce système comprenant un organe de réinitialisation actionnable manuellement. L’organe de réinitialisation est configuré pour, à l’état actionné, commander le système d’entraînement en déplacement de la plateforme de manière prédéfinie en vue de permettre à l’opérateur de se dégager. [0010] Selon un mode de réalisation de l’invention, l’organe rotatif d’enroulement du lien de l’un des systèmes de maintien est une roue de poulie portée par un axe disposé de manière stationnaire sur la plateforme, ladite roue de poulie présentant une jante configurée pour recevoir le lien couplé par l’une de ses extrémités à la roue et l’organe de rappel élastique dudit organe rotatif d’enroulement est un ressort, de préférence de torsion. L’organe de rappel élastique dudit organe rotatif d’enroulement est donc configuré pour exercer sur la roue un effort d’entraînement en rotation de la roue dans le sens d’un enroulement du lien autour de la roue. Une traction sur le lien dans le sens d’un déroulement du lien de la roue permet donc d’entrainer en déplacement la roue auquel le lien est couplé à l’encontre de l’action de rappel du ressort sur la roue. [0009] According to one embodiment of the invention, the nacelle comprises a system for resetting the operation of the control (s) of the drive system for moving the platform, in the disabled state of the controls to operate, this system comprising a manually operable reset device. The reset member is configured to, in the actuated state, control the drive system to move the platform in a predefined manner in order to allow the operator to disengage. According to one embodiment of the invention, the rotary member for winding the link of one of the holding systems is a pulley wheel carried by a pin arranged stationary on the platform, said wheel pulley having a rim configured to receive the link coupled by one of its ends to the wheel and the elastic return member of said rotating winding member is a spring, preferably a torsion spring. The elastic return member of said rotating winding member is therefore configured to exert on the wheel a force for driving the wheel in rotation in the direction of winding of the link around the wheel. Pulling on the link in the direction of unwinding of the link from the wheel therefore makes it possible to drive the wheel to which the link is coupled in movement against the return action of the spring on the wheel.
[0011] Selon un mode de réalisation de l’invention, la nacelle comprend une butée de limitation en déplacement angulaire de l’organe rotatif d’enroulement du lien de l’un des systèmes de maintien, ladite butée étant configurée pour limiter le déplacement angulaire de l’organe rotatif au-delà d’une course de déplacement prédéterminée d’une part, à l’état entraîné de l’organe rotatif dans le sens horaire, d’autre part, à l’état entraîné de l’organe rotatif dans le sens anti-horaire. La double fonction de la butée angulaire permet de limiter le déplacement angulaire de l’organe rotatif d’enroulement du lien dans toutes les situations de déformation du lien, cette déformation pouvant résulter d’une tension du lien par exemple par une pression exercée sur le lien par l’opérateur ou d’un relâchement du lien par exemple dans le cas d’une rupture du lien. According to one embodiment of the invention, the nacelle comprises a stop for limiting the angular displacement of the rotary member for winding the link of one of the holding systems, said stop being configured to limit the displacement angular of the rotary member beyond a predetermined displacement stroke on the one hand, in the driven state of the rotary member clockwise, on the other hand, in the driven state of the member rotating counterclockwise. The double function of the angular stop makes it possible to limit the angular displacement of the rotary member for winding the link in all situations of deformation of the link, this deformation may result from tension of the link, for example by pressure exerted on the link. link by the operator or a release of the link, for example in the case of a break in the link.
[0012] Selon un mode de réalisation de l’invention, la nacelle comprenant une butée de limitation en déplacement angulaire de l’organe rotatif d’enroulement du lien de l’un des systèmes de maintien, ladite butée étant configurée pour limiter le déplacement angulaire de l’organe rotatif au moins dans le sens d’un déroulement du lien dudit organe rotatif au-delà d’une course de déplacement angulaire prédéterminée dudit organe rotatif, l’organe de détection d'une déformation du lien est configuré pour, sous l’effet d’une déformation du lien, passer d’un état inactif à un état actif dans une position angulaire dudit organe rotatif d’enroulement du lien autre que la ou au moins l’une des positions angulaires dudit organe rotatif d’enroulement du lien correspondant à une position de fin de course dudit organe rotatif d’enroulement matérialisée par ladite butée. Ainsi, en fonction de la position relative de la position de fin de course de l’organe rotatif d’enroulement du lien et de l’organe de détection, il est possible de faire varier le moment de déclenchement de l’arrêt du déplacement de la plateforme pour faire varier la course de déplacement angulaire de l’organe rotatif d’enroulement restant après l'arrêt de la plateforme et par suite la course de lien restant. According to one embodiment of the invention, the nacelle comprising a stop for limiting the angular displacement of the rotary member for winding the link of one of the holding systems, said stop being configured to limit the displacement angular of the rotary member at least in the direction of an unwinding of the link of said rotary member beyond a predetermined angular displacement stroke of said rotary member, the member for detecting a deformation of the link is configured for, under the effect of a deformation of the link, change from an inactive state to an active state in an angular position of said rotary member for winding the link other than the or at least one of the angular positions of said rotary member of winding of the link corresponding to an end-of-stroke position of said rotating winding member materialized by said stopper. Thus, as a function of the relative position of the end-of-travel position of the rotary member for winding the link and of the detection member, it is possible to vary the moment at which the stopping of movement of the device is triggered. the platform to vary the angular displacement stroke of the rotating winding member remaining after stopping the platform and therefore the remaining link stroke.
[0013] Selon un mode de réalisation de l’invention, chacun des systèmes de maintien comprenant un organe rotatif d’enroulement du lien autour duquel le lien s’enroule partiellement, et un organe de rappel élastique formé par un ressort équipant ledit organe rotatif , et le dispositif de détection d'une déformation du lien comprenant un organe de détection d'une déformation du lien formé par un organe de détection de la position angulaire de l’organe rotatif d’enroulement du lien d’un seul des systèmes de maintien dit système de maintien principal, la raideur du ressort équipant ce système de maintien principal est inférieure à la raideur du ressort équipant l’autre système de maintien. Il en résulte une sensibilité accrue des systèmes de maintien. According to one embodiment of the invention, each of the holding systems comprising a rotary member for winding the link around which the link is partially wound, and an elastic return member formed by a spring fitted to said rotary member , and the device for detecting a deformation of the link comprising a member for detecting a deformation of the link formed by a member for detecting the angular position of the rotary member for winding the link of only one of the systems of maintaining said main retaining system, the stiffness of the spring equipping this main retaining system is less than the stiffness of the spring equipping the other retaining system. This results in increased sensitivity of the holding systems.
[0014] Selon un mode de réalisation de l’invention, la nacelle est une nacelle élévatrice. [0014] According to one embodiment of the invention, the nacelle is a lifting nacelle.
Brève description des dessins Brief description of the drawings
L'invention sera bien comprise à la lecture de la description suivante d'exemples de réalisation, en référence aux dessins annexés dans lesquels : The invention will be clearly understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:
[0015] [Fig. 1] représente une vue en perspective d’une nacelle conforme à l’invention à l’état non sollicité du lien, [0015] [Fig. 1] is a perspective view of a nacelle according to the invention in the unsolicited state of the link,
[0016] [Fig. 2] représente une vue en perspective d’une nacelle conforme à l’invention à l’état sollicité du lien par l’opérateur poussé dans le dos par un obstacle, [0016] [Fig. 2] is a perspective view of a nacelle according to the invention in the requested state of the link by the operator pushed from behind by an obstacle,
[0017] [Fig. 3] représente une vue schématique partielle d’un organe rotatif d’enroulement d’un lien associé à un organe de détection de la déformation du lien, à l’état inactif dudit organe de détection correspondant à l’état non sollicité c’est-à-dire non déformé du lien, [0018] [Fig. 4] représente une vue schématique partielle d’un organe rotatif d’enroulement d’un lien associé à un organe de détection de la déformation du lien, à l’état actif dudit organe de détection après déformation du lien dans le sens d’un déroulement du lien dudit organe rotatif d’enroulement du lien, cette déformation pouvant résulter d’une pression exercée par l’opérateur sur le lien par exemple dans le cas d’une situation conforme à la figure 2, [0017] [Fig. 3] shows a partial schematic view of a rotating member for winding a link associated with a member for detecting the deformation of the link, in the inactive state of said detection member corresponding to the unsolicited state, that is, i.e. not deformed of the link, [0018] [Fig. 4] shows a partial schematic view of a rotating member for winding a link associated with a member for detecting the deformation of the link, in the active state of said detection member after deformation of the link in the direction of a unwinding of the link of said rotary member for winding the link, this deformation possibly resulting from pressure exerted by the operator on the link, for example in the case of a situation in accordance with FIG. 2,
[0019] [Fig. 5] représente une vue schématique partielle d’un organe rotatif d’enroulement d’un lien associé à un organe de détection de la déformation du lien, à l’état actif dudit organe de détection après déformation du lien résultant d’une rupture du lien, [0019] [Fig. 5] shows a partial schematic view of a rotating member for winding a link associated with a member for detecting the deformation of the link, in the active state of said detection member after deformation of the link resulting from a rupture of the link. link,
[0020] [Fig. 6] représente sous forme de blocs une partie des éléments constitutifs de la nacelle. [0020] [Fig. 6] shows in the form of blocks part of the constituent elements of the nacelle.
[0021] Comme mentionné ci-dessus, l'invention a pour objet une nacelle 1 qui comprend une plateforme 7 présentant un emplacement 71 de réception d'un opérateur 30. Cette plateforme 7 de travail est ici formée d'un plancher et de garde-corps entourant le plancher tout en autorisant l'accès à l'intérieur de ladite plateforme. L'opérateur 30 est généralement debout à l'intérieur de l'emplacement 71 de réception de la plateforme 7 et fait face à un pupitre 3 de commande porté par la plateforme 7. Ce pupitre 3 de commande est généralement disposé à écartement du plancher de la plateforme 7 le long du garde-corps de la plateforme 7 comme illustré à la figure 1. Ce pupitre 3 de commande est équipé d'au moins une, de préférence de plusieurs, commandes 4 actionnables manuellement telle que des boutons, leviers, ou autres. Ces commandes 4 permettent la commande d'un système 2 d'entraînement en déplacement de la plateforme 7. As mentioned above, the invention relates to a nacelle 1 which comprises a platform 7 having a location 71 for receiving an operator 30. This working platform 7 is here formed of a floor and guard -bodies surrounding the floor while allowing access to the interior of said platform. The operator 30 is generally standing inside the location 71 for receiving the platform 7 and faces a control panel 3 carried by the platform 7. This control panel 3 is generally arranged at a distance from the floor of the platform 7 along the guardrail of the platform 7 as illustrated in FIG. 1. This control panel 3 is equipped with at least one, preferably several, manually operable controls 4 such as buttons, levers, or other. These commands 4 allow the control of a drive system 2 in displacement of the platform 7.
[0022] Ce système 2 d'entraînement en déplacement de la plateforme 7 peut affecter un grand nombre de formes en fonction du type de nacelle qui peut être une nacelle suspendue ou portée par un châssis mobile comme dans l'exemple représenté à la figure 1. Dans le cas d'une nacelle suspendue, le système 2 d'entraînement en déplacement de la plateforme 7 peut comprendre un treuil embarqué sur ladite nacelle et des câbles de suspension de la nacelle à l'aide du treuil. La plateforme 7 peut encore être entraînée en élévation par rapport au châssis 16 porteur, comme dans l'exemple représenté à la figure 1, pour former une nacelle 1 élévatrice. This system 2 for moving the platform 7 can affect a large number of forms depending on the type of nacelle which can be a nacelle suspended or carried by a movable frame as in the example shown in Figure 1 In the case of a suspended nacelle, the system 2 for driving the platform 7 in movement may comprise a winch on board said nacelle and cables for suspending the nacelle using the winch. The platform 7 can still be driven in elevation relative to the carrier frame 16, as in the example shown in Figure 1, to form a lifting platform 1.
[0023] Le châssis 16 est donc un châssis motorisé équipé de roues ou de chenilles. La plateforme 7 est reliée au châssis 16 par une structure d'élévation comprenant au moins un actionneur de la structure d'élévation. Actionneur et structure d'élévation forment une partie du système 2 d'entraînement en déplacement de la plateforme 7. La structure d'élévation comprend ici, au moins un bras pivotant autour d'un axe horizontal et l'actionneur est un vérin d'actionnement dudit bras s'étendant entre le bras et le châssis 16. Ce bras est de préférence un bras télescopique. [0023] The frame 16 is therefore a motorized frame equipped with wheels or tracks. The platform 7 is connected to the frame 16 by an elevation structure comprising at least one actuator of the elevation structure. Actuator and elevation structure form part of the system 2 for driving the platform 7 in motion. The elevation structure here comprises at least one arm pivoting about a horizontal axis and the actuator is a cylinder. actuation of said arm extending between the arm and the frame 16. This arm is preferably a telescopic arm.
[0024] Les commandes 4 du pupitre 3 de commande permettent la commande du système 2 d'entraînement en déplacement de la plateforme 7 par actionnement du moteur du châssis 16 et/ou au moins un actionneur de la structure d'élévation pour permettre un déplacement de la plateforme 7 par déplacement sur le sol du châssis 16 et/ou par déplacement du bras. Ce système 2 d'entraînement en déplacement de la plateforme 7 ne sera pas décrit plus en détail car il est bien connu à ceux versés dans cet art. The controls 4 of the control panel 3 allow the control of the system 2 for driving the movement of the platform 7 by actuating the motor of the chassis 16 and / or at least one actuator of the lifting structure to allow movement of the platform 7 by moving the frame 16 on the ground and / or by moving the arm. This system 2 for moving the platform 7 will not be described in more detail because it is well known to those skilled in this art.
[0025] La nacelle 1 comprend encore un lien 5 de sécurité flexible qui peut être réalisé sous forme d'un câble, d'une courroie, d'une chaîne ou autre. Dans l'exemple représenté, le lien 5 de sécurité flexible est un câble. Ce lien 5 présente deux extrémités représentées en 51 aux figures. La nacelle 1 comprend encore deux systèmes 6 de maintien du lien 5 portés par la plateforme 7. Ces systèmes 6 de maintien du lien sont disposés en regard l'un de l'autre. Ces systèmes 6 de maintien sont ici portés par deux garde-corps délimitant chacun un côté vertical du plancher de la plateforme 7, lesdits côtés étant opposés. The nacelle 1 further comprises a flexible safety link 5 which can be produced in the form of a cable, a belt, a chain or the like. In the example shown, the flexible security link 5 is a cable. This link 5 has two ends shown at 51 in the figures. The nacelle 1 also comprises two systems 6 for maintaining the link 5 carried by the platform 7. These systems 6 for maintaining the link are arranged opposite one another. These support systems 6 are here carried by two guardrails each delimiting a vertical side of the floor of the platform 7, said sides being opposite.
[0026] Les systèmes 6 de maintien du lien 5 sont disposés, l'un, à l'une des extrémités, l'autre, à l'autre des extrémités du lien 5 pour un maintien du lien 5 dans au moins une position dans laquelle le lien 5 s'étend à l'état tendu à l'horizontale ou sensiblement à l'horizontale, c'est-à-dire + 20° près. A l'état tendu, le lien 5 s'étend ainsi sensiblement parallèlement à + 20° près au plan support du plancher de la plateforme 7. Le lien 5 s'étend à travers la plateforme 7 en reliant, par exemple comme dans les exemples représentés, deux côtés verticaux opposés de la plateforme jouxtant le plancher de la plateforme. En pratique, ce lien 5 s'étend à travers la plateforme 7 à proximité du pupitre 3 de commande sur la trajectoire pouvant être suivie par une partie du corps, en particulier la partie supérieure du corps d'un opérateur debout devant le pupitre 3 de commande et se penchant en direction du pupitre 3 de commande. Ce lien 5 forme ainsi une ligne de démarcation entre une partie de l'emplacement 71 de réception de l'opérateur de la plateforme 7 et le pupitre 3 de commande pour pouvoir être sollicité par l'opérateur dès que ce dernier est déséquilibré vers l'avant, par exemple sous l'effet d'une poussée dans le dos par un obstacle comme illustré à la figure 2. The systems 6 for maintaining the link 5 are arranged, one at one end, the other at the other of the ends of the link 5 for maintaining the link 5 in at least one position in which the link 5 extends in the stretched state horizontally or substantially horizontally, that is to say + 20 °. In the tensioned state, the link 5 thus extends substantially parallel to within + 20 ° to the support plane of the floor of the platform 7. The link 5 extends through the platform 7 by connecting, for example as in the examples shown, two sides opposite verticals of the platform adjoining the platform floor. In practice, this link 5 extends through the platform 7 near the control panel 3 on the path that can be followed by a part of the body, in particular the upper part of the body of an operator standing in front of the control panel 3. control and leaning in the direction of the control panel 3. This link 5 thus forms a dividing line between part of the location 71 for receiving the operator of the platform 7 and the control panel 3 so that it can be called upon by the operator as soon as the latter is unbalanced towards the front, for example under the effect of a thrust in the back by an obstacle as illustrated in figure 2.
[0027] La déformation du lien 5 sous l'effet d'une pression exercée par l'opérateur sur le lien 5 entraîne une augmentation du volume de l'emplacement 71 pouvant être occupé par l'opérateur sur la plateforme 7. The deformation of the link 5 under the effect of pressure exerted by the operator on the link 5 causes an increase in the volume of the location 71 which can be occupied by the operator on the platform 7.
[0028] Les systèmes 6 de maintien du lien peuvent être identiques ou différents d'un système de maintien à un autre. Au moins l'un des systèmes 6 de maintien comprend un organe 10 rotatif d'enroulement du lien 5 autour duquel le lien 5 couplé audit organe 10 rotatif s'enroule partiellement. Ledit organe 10 rotatif est équipé d'au moins un organe 11 de rappel élastique dudit organe 10 rotatif configuré pour exercer sur ledit organe 10 rotatif un effort d'entraînement en déplacement angulaire de l'organe 10 rotatif dans le sens d'un enroulement du lien 5 autour dudit organe 10 rotatif. The systems 6 for maintaining the link may be identical or different from one maintenance system to another. At least one of the retaining systems 6 comprises a rotary member 10 for winding the link 5 around which the link 5 coupled to said rotary member 10 is partially wound. Said rotary member 10 is equipped with at least one member 11 for resiliently returning said rotary member 10 configured to exert on said rotary member 10 a driving force in angular displacement of the rotary member 10 in the direction of winding of the rotary member. link 5 around said rotary member 10.
[0029] Dans les exemples représentés, chaque système 6 de maintien comprend un organe 10 rotatif d'enroulement du lien et un organe 11 de rappel élastique de l'organe 10 rotatif d'enroulement du lien, ces éléments étant à chaque fois logés dans un boîtier fixé à la plateforme. In the examples shown, each holding system 6 comprises a rotary member 10 for winding the link and an elastic return member 11 of the rotary member 10 for winding the link, these elements being each time housed in a box fixed to the platform.
[0030] L'organe 10 rotatif d'enroulement du lien est, de préférence, comme dans les exemples représentés, une roue 101 de poulie portée par un axe 102 disposé de manière stationnaire sur la plateforme. La roue 101 de poulie et son axe 102 sont logés au moins partiellement à l'intérieur du boîtier porté par la plateforme 7 lorsque ce dernier est présent. La roue 101 tourne autour de l'axe 102. Cette roue 101 présente une jante 103 ménageant, par exemple, une rainure pour recevoir la partie du lien 5 s'enroulant autour de la roue 101. L'extrémité 51 du lien est couplée à la roue 101. A cet effet, l'extrémité 51 du lien 5 peut être équipée d'une butée de câble s'emboîtant dans un logement de la roue 101. The rotary member 10 for winding the link is preferably, as in the examples shown, a pulley wheel 101 carried by a pin 102 arranged stationary on the platform. The pulley wheel 101 and its axle 102 are housed at least partially inside the housing carried by the platform 7 when the latter is present. The wheel 101 rotates around the axis 102. This wheel 101 has a rim 103 forming, for example, a groove to receive the part of the link 5 winding around the wheel 101. The end 51 of the link is coupled to the wheel 101. To this end, the end 51 of the link 5 can be equipped with a cable stop fitting into a housing of the wheel 101.
[0031] L'organe 11 de rappel élastique de l'organe 10 rotatif d'enroulement est, quant à lui, un organe élastiquement déformable qui peut affecter un grand nombre de formes. Cet organe 11 de rappel est réalisé ici sous forme d'un ressort de torsion qui s'enroule au moins partiellement autour de l'axe 102 stationnaire de rotation de la roue 101. Ce ressort est un ressort en épingle avec deux branches reliées par un enroulement spiralé s'enroulant autour de l'axe. L'une des branches du ressort prend appui sur une butée fixe extérieure à la roue 101 tandis que l'autre branche du ressort est couplée à la roue 101 de poulie. Les branches sont rappelées élastiquement en position écartée l'une de l'autre. Ainsi à l'état tendu du lien 5 entre les deux systèmes 6 de maintien, une pression exercée sur le lien 5 entraîne en déplacement angulaire de l'organe 10 rotatif d'enroulement du lien 5, c'est-à-dire de la roue 101 dans le sens d'un déroulement du lien de la roue 101 à l'encontre de l'action de l'organe 11 de rappel élastique qui tend, au contraire, à entraîner en déplacement angulaire l'organe 10 rotatif d'enroulement du lien 5 dans le sens d'un enroulement du lien 5 autour dudit organe 10 rotatif. The elastic return member 11 of the rotary winding member 10 is, for its part, an elastically deformable member which can affect a large number of shapes. This return member 11 is produced here in the form of a torsion spring which at least partially winds around the stationary axis 102 of rotation of the wheel 101. This spring is a hairpin spring with two branches connected by a spiral winding winding around the axis. One of the branches of the spring is supported on a fixed stop outside the wheel 101 while the other branch of the spring is coupled to the wheel 101 of the pulley. The branches are resiliently biased in a position separated from one another. Thus in the tensioned state of the link 5 between the two holding systems 6, a pressure exerted on the link 5 causes angular displacement of the rotary member 10 for winding the link 5, that is to say of the wheel 101 in the direction of an unwinding of the link of the wheel 101 against the action of the elastic return member 11 which tends, on the contrary, to drive the rotary winding member 10 in angular displacement of the link 5 in the direction of winding of the link 5 around said rotary member 10.
[0032] Pour maîtriser le déplacement angulaire de l'organe 10 rotatif d'enroulement du lien 5, la nacelle 1 comprend une butée 14 de limitation en déplacement angulaire de l'organe 10 rotatif d'enroulement du lien 5. Cette butée 14 affecte ici la forme d'un plot 141 circulant dans un chemin 142 de guidage circulaire ménagé sur l'organe 10 rotatif d'enroulement du lien 5 et de rayon de centre passant par l'axe de rotation de l'organe 10 rotatif d'enroulement du lien 5. Ce chemin 142 de guidage affecte, dans les exemples représentés, la forme d'une rainure allongée courbe fermée à chacune de ses extrémités et à l'intérieur de laquelle le plot 141 est disposé à l'état non sollicité du lien 5 s'étendant à l'état tendu entre les systèmes 6 de maintien. Dans l'exemple représenté à la figure 1 où le lien 5 n'est pas sollicité par l'opérateur, le plot 141 s'étend dans le chemin 142 de guidage entre les extrémités du chemin 142 de guidage. To control the angular displacement of the rotary member 10 for winding the link 5, the nacelle 1 comprises a stop 14 for limiting the angular displacement of the rotary member 10 for winding the link 5. This stop 14 affects here the shape of a stud 141 circulating in a circular guide path 142 formed on the rotary member 10 for winding the link 5 and of center radius passing through the axis of rotation of the rotary member 10 for winding of the link 5. This guide path 142 affects, in the examples shown, the shape of an elongated curved groove closed at each of its ends and inside which the stud 141 is disposed in the unsolicited state of the link 5 extending in the tensioned state between the retaining systems 6. In the example shown in FIG. 1 where the link 5 is not requested by the operator, the stud 141 extends in the guide path 142 between the ends of the guide path 142.
[0033] Ainsi, un déplacement angulaire de la roue 101 par rapport au plot 141 jusqu'à une position dans laquelle le plot 141 est en appui contre une extrémité du chemin 142 de guidage ménagée sur la roue 101 peut s'opérer dans les deux sens d'entraînement en déplacement de la roue 101. La butée 14 est donc configurée pour limiter le déplacement angulaire de l'organe 10 rotatif au-delà d'une course de déplacement prédéterminée, d'une part, à l'état entraîné de l'organe 10 rotatif dans le sens horaire, d'autre part, à l'état entraîné de l'organe 10 rotatif dans le sens anti-horaire. Thus, an angular displacement of the wheel 101 relative to the pad 141 to a position in which the pad 141 bears against one end of the guide path 142 formed on the wheel 101 can take place in both direction of movement of the wheel 101. The stop 14 is therefore configured to limit the angular displacement of the rotary member 10 beyond a predetermined displacement stroke, on the one hand, in the driven state of the rotary member 10 in the clockwise direction, on the other hand, to the driven state of the rotating member 10 in the counterclockwise direction.
[0034] Ainsi, la butée 14 fait office de butée de fin de course lors d'une déformation du lien par pression exercée sur le lien 5 ou par relâchement du lien 5 lorsque, par exemple, le lien 5 est rompu. Ces deux cas sont illustrés aux figures 4 et 5, la figure 3 illustrant la position du plot 141 formant la butée 14 à l'état non sollicité du lien 5. Thus, the stop 14 acts as an end stop when the link is deformed by pressure exerted on the link 5 or by releasing the link 5 when, for example, the link 5 is broken. These two cases are illustrated in Figures 4 and 5, Figure 3 illustrating the position of the stud 141 forming the stop 14 in the unsolicited state of the link 5.
[0035] Ainsi, lorsque le lien 5 est soumis à une pression, comme dans l'exemple représenté à la figure 4, la traction exercée sur le lien 5 entraîne un déplacement angulaire de la roue 101 dans le sens horaire à la figure 4 jusqu'à une position dans laquelle le plot 141 est en appui contre l'une des extrémités du chemin 142 de guidage. A l'inverse, lorsque le lien 5 est rompu donc relâché, comme à la figure 5, l'organe 11 de rappel élastique tend à entraîner en déplacement la roue 101 dans le sens anti-horaire et le plot 141 est alors en appui contre l'extrémité opposée du chemin 142 de guidage. Thus, when the link 5 is subjected to pressure, as in the example shown in Figure 4, the traction exerted on the link 5 causes an angular displacement of the wheel 101 in the clockwise direction in Figure 4 until 'to a position in which the stud 141 bears against one of the ends of the guide path 142. Conversely, when the link 5 is broken and therefore released, as in FIG. 5, the elastic return member 11 tends to cause the wheel 101 to move in the anti-clockwise direction and the stud 141 is then pressed against the opposite end of the guide path 142.
[0036] La nacelle 1 comprend encore un dispositif 8 de détection d'une déformation du lien 5. Ce dispositif 8 de détection comprend au moins un organe 9 de détection d'une déformation du lien 5. Cet organe 9 de détection est configuré pour, sous l'effet d'une déformation du lien 5, passer d'un état dit inactif dans lequel le fonctionnement de la ou des commandes 4 du système 2 d'entraînement en déplacement de la plateforme 7 n'est pas empêché, c'est-à- dire l'actionnement manuel par l'opérateur de la ou des commandes 4, permet une commande du système 2 d'entraînement en déplacement de la plateforme à un état dit actif dans lequel le fonctionnement de la ou des commandes 4 est empêché, c'est-à-dire l'actionnement manuel de la ou des commandes 4 par l'opérateur est sans effet sur la commande du système 2 d'entraînement en déplacement de la plateforme 7 de sorte que la plateforme 7 est à l'arrêt. The nacelle 1 further comprises a device 8 for detecting a deformation of the link 5. This detection device 8 comprises at least one member 9 for detecting a deformation of the link 5. This detection member 9 is configured to , under the effect of a deformation of the link 5, go from a so-called inactive state in which the operation of the command (s) 4 of the drive system 2 for moving the platform 7 is not prevented, it is that is to say the manual actuation by the operator of the control (s) 4, allows control of the drive system 2 in displacement of the platform in a so-called active state in which the operation of the control (s) 4 is prevented, that is to say the manual actuation of the control (s) 4 by the operator has no effect on the control of the drive system 2 in displacement of the platform 7 so that the platform 7 is at the 'stop.
[0037] La liaison entre l'organe 9 de détection et les commandes 4 pour permettre une inactivation des commandes 4 à l'état actif de l'organe 9 de détection peut affecter un grand nombre de formes. [0038] Dans les exemples représentés, la nacelle comprend un bouton 15 d'arrêt d'urgence équipant le pupitre de commande. Ce bouton 15 d'arrêt d'urgence à l'état actionné par l'opérateur empêche toute alimentation électrique notamment des commandes 4 du pupitre de commande de sorte que leur actionnement par l'opérateur est sans effet sur le système d'entraînement du déplacement de la plateforme 7. The connection between the detection unit 9 and the controls 4 to allow inactivation of the controls 4 in the active state of the detection unit 9 can affect a large number of forms. In the examples shown, the nacelle comprises an emergency stop button 15 fitted to the control panel. This emergency stop button 15 in the state actuated by the operator prevents any power supply, in particular to the controls 4 of the control panel so that their actuation by the operator has no effect on the movement drive system. of the platform 7.
[0039] L'organe 9 de détection d'une déformation du lien 5 peut se comporter à la manière d'un bouton d'arrêt d'urgence et invalider la ou les commandes 4 de manière similaire à ce qui peut être prévu en termes d'inactivation de la ou des commandes dans le cas d'un actionnement du bouton 15 d'arrêt d'urgence. Dans ce cas, la nacelle 1 comprend un circuit électrique d'alimentation des commandes 4 du pupitre de commande et l'organe 9 de détection d'une déformation du lien 5 est configuré pour ouvrir/fermer ledit circuit électrique en fonction de la position angulaire de l'organe 10 rotatif d'enroulement du lien, lesdites commandes 4 étant inactives à l'état ouvert du circuit. L'organe 9 de détection d'une déformation du lien est configuré pour passer de l'état inactif dans lequel il ferme le circuit à l'état actif dans lequel il ouvre le circuit sous l'effet d'une déformation du lien 5. The member 9 for detecting a deformation of the link 5 can behave in the manner of an emergency stop button and invalidate the command (s) 4 in a manner similar to what can be expected in terms inactivation of the command (s) in the event of actuation of the emergency stop button 15. In this case, the nacelle 1 comprises an electrical circuit for supplying the controls 4 of the control panel and the member 9 for detecting a deformation of the link 5 is configured to open / close said electrical circuit as a function of the angular position. of the rotary member 10 for winding the link, said controls 4 being inactive in the open state of the circuit. The member 9 for detecting a deformation of the link is configured to pass from the inactive state in which it closes the circuit to the active state in which it opens the circuit under the effect of a deformation of the link 5.
[0040] Dans les exemples représentés, la nacelle 1 comprend une unité 12 de commande avec laquelle le dispositif 8 de détection d'une déformation du lien 5 est configuré pour communiquer. Cette unité 12 de commande est configurée pour émettre un signal de commande d'arrêt du fonctionnement des commandes 4 du système 2 d'entraînement en déplacement de la plateforme 7 en fonction des données reçues du dispositif 8 de détection. [0041] Il doit être noté que la nacelle 1 peut comprend un dispositif d'avertissement sonore et/ou lumineux et l'unité 12 de commande peut également être configurée pour émettre un signal d'avertissement, c'est-à-dire un signal d'alerte visuelle et/ou sonore en fonction des données reçues du dispositif 8 de détection d'une déformation du lien 5 de manière en soi connue. [0042] L'unité 12 de commande est un système électrique et/ou informatique. Ladite unité de commande comprend, par exemple, un processeur ou contrôleur, ou des composants électroniques dédiés ou des composants de type FPGA ou ASIC. Il est aussi possible de combiner des parties informatiques et des parties électroniques. L'unité 12 de commande peut être au moins partiellement commune avec un calculateur de la nacelle associé au pupitre de commande. In the examples shown, the nacelle 1 comprises a control unit 12 with which the device 8 for detecting a deformation of the link 5 is configured to communicate. This control unit 12 is configured to emit a control signal for stopping the operation of the controls 4 of the system 2 for driving the movement of the platform 7 as a function of the data received from the detection device 8. It should be noted that the nacelle 1 can include an audible and / or light warning device and the control unit 12 can also be configured to emit a warning signal, that is to say a visual and / or audible warning signal as a function of the data received from the device 8 for detecting a deformation of the link 5 in a manner known per se. The control unit 12 is an electrical and / or computer system. Said control unit comprises, for example, a processor or controller, or dedicated electronic components or FPGA type components or ASIC. It is also possible to combine computer parts and electronic parts. The control unit 12 can be at least partially common with a computer of the nacelle associated with the control console.
[0043] Les fonctions, moyens et étapes décrits pour l'unité 12 de commande peuvent être mis en œuvre sous forme de programme informatique ou via des composants matériels (par exemple des réseaux de portes programmables) implémentés dans, et/ou formant partie de ladite unité 12 de commande. Les programmes d'ordinateur ou instructions informatiques peuvent être contenus dans des dispositifs de stockage de programme, par exemple des supports de stockage de données numériques lisibles par un ordinateur ou des programmes exécutables. Les programmes ou instructions peuvent aussi être exécutés à partir de périphériques de stockage de programme. The functions, means and steps described for the control unit 12 can be implemented in the form of a computer program or via hardware components (for example networks of programmable doors) implemented in, and / or forming part of said control unit 12. Computer programs or computer instructions may be contained in program storage devices, for example, computer readable digital data storage media or executable programs. Programs or instructions can also be executed from program storage devices.
[0044] Dans les exemples représentés, l'organe 9 de détection d'une déformation du lien 5 est un organe de détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien 5 de l'un des systèmes 6 de maintien. Cet organe 9 de détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien 5 peut affecter un grand nombre de formes. Cet organe 9 de détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien 5 peut être un capteur 91 de détection de la position angulaire de l'organe 10 d'enroulement du lien 5 par contact avec ledit organe 10 rotatif d'enroulement du lien 5 comme dans l'exemple représenté où le capteur est de type bouton-poussoir avec une partie mobile. La partie mobile de ce capteur est, à l'état inactif du capteur positionné dans une encoche ménagée sur la circonférence externe de la roue 101 de l'organe 10 rotatif d'enroulement du lien. In the examples shown, the member 9 for detecting a deformation of the link 5 is a member for detecting the angular position of the rotary member 10 for winding the link 5 of one of the systems 6 of maintenance. This member 9 for detecting the angular position of the rotary member 10 for winding the link 5 can have a large number of shapes. This member 9 for detecting the angular position of the rotary member 10 for winding the link 5 can be a sensor 91 for detecting the angular position of the member 10 for winding the link 5 by contact with said rotary member 10. winding of the link 5 as in the example shown where the sensor is of the push-button type with a movable part. The movable part of this sensor is, in the inactive state of the sensor positioned in a notch provided on the outer circumference of the wheel 101 of the rotary member 10 for winding the link.
[0045] Le déplacement angulaire de la roue 101 entraîne par contact d'appui du bord de la roue 101 avec la partie mobile formée par le poussoir du capteur et un déplacement de ladite partie mobile du capteur et le passage dudit capteur d'un état inactif à un état actif dans lequel il peut ou ouvrir le circuit électrique, tel que décrit ci-dessus, ou adresser un signal à l'unité de commande selon sa conception. The angular displacement of the wheel 101 leads by bearing contact of the edge of the wheel 101 with the movable part formed by the sensor pusher and a movement of said movable part of the sensor and the passage of said sensor from a state inactive to an active state in which it can either open the electrical circuit, as described above, or send a signal to the control unit according to its design.
[0046] En variante, le capteur 91 de détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien peut être un capteur de détection sans contact avec l'organe 10 rotatif d'enroulement du lien 5. Ce capteur peut, dans ce cas, être un capteur de distance ou de proximité tel qu'un capteur à infrarouge, un capteur inductif, un capteur capacitif ou photo-correcteur ou autre. As a variant, the sensor 91 for detecting the angular position of the rotary member 10 for winding the link may be a detection sensor without contact with the rotary member 10 for winding the link 5. This sensor can, in this case, be a distance or proximity sensor such as an infrared sensor, an inductive sensor, a capacitive or photo-corrective sensor or the like.
[0047] A nouveau, le passage de l'état inactif à l'état actif dudit capteur peut permettre d'ouvrir le circuit électrique tel que mentionné ci-dessus ou générer l'adressage d'un signal à l'unité 12 de commande. Again, the passage from the inactive state to the active state of said sensor can make it possible to open the electrical circuit as mentioned above or to generate the addressing of a signal to the control unit 12. .
[0048] Indépendamment de sa conception, ce capteur 91 de détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien 5 est relié électriquement à l'unité 12 de commande et est configuré pour adresser à l'unité 12 de commande un signal électrique en fonction au moins de la position angulaire de l'organe 10 rotatif d'enroulement du lien 5 autour dudit système 6 de maintien. Regardless of its design, this sensor 91 for detecting the angular position of the rotary member 10 for winding the link 5 is electrically connected to the control unit 12 and is configured to address to the unit 12 of controls an electrical signal as a function at least of the angular position of the rotary member 10 for winding the link 5 around said support system 6.
[0049] On note que, dans les exemples représentés, l'organe 9 de détection d'une déformation du lien 5 est configuré pour, sous l'effet d'une déformation du lien, passer d'un état inactif à un état actif dans une position angulaire dudit organe 10 rotatif d'enroulement du lien autre que la ou au moins l'une des positions angulaires dudit organe 10 rotatif d'enroulement du lien 5 correspondant à une position de fin de course dudit organe 10 rotatif d'enroulement matérialisée par la butée 14. En d'autres termes, l'organe 9 de détection d'une déformation du lien 5 détecte un déplacement angulaire de l'organe 10 rotatif et passe de l'état inactif à l'état actif avant que l'organe 10 rotatif d'enroulement du lien ne puisse plus se déplacer angulairement sous l'action de la butée 14. Note that, in the examples shown, the member 9 for detecting a deformation of the link 5 is configured to, under the effect of a deformation of the link, go from an inactive state to an active state in an angular position of said rotary member 10 for winding the link other than the or at least one of the angular positions of said rotary member 10 for winding the link 5 corresponding to an end position of said rotary member 10 for winding materialized by the stop 14. In other words, the member 9 for detecting a deformation of the link 5 detects an angular displacement of the rotary member 10 and passes from the inactive state to the active state before the The rotating member 10 for winding the link can no longer move angularly under the action of the stop 14.
[0050] Bien évidemment, au cours de ce déplacement angulaire de l'organe 10 rotatif d'enroulement du lien, les scénarios peuvent être nombreux. Ainsi, une alarme sonore ou visuelle peut précéder l'arrêt du déplacement de la plateforme 7 par inactivation des commandes 4 ou non. De même, l'alarme peut être omise. Enfin, la détection d'un déplacement angulaire de l'organe 10 rotatif d'enroulement du lien par l'organe 9 de détection d'une déformation du lien peut s'opérer dès le début de la course de déplacement angulaire de l'organe 10 rotatif d'enroulement du lien ou, par exemple, au milieu de cette course de déplacement angulaire selon la réactivité souhaitée. Obviously, during this angular displacement of the rotary member 10 for winding the link, the scenarios can be numerous. Thus, an audible or visual alarm can precede the stopping of the movement of the platform 7 by inactivation of the controls 4 or not. Likewise, the alarm can be omitted. Finally, the detection of an angular displacement of the rotary member 10 for winding the link by the member 9 for detecting a deformation of the link can take place from the start of the angular displacement stroke of the member. 10 rotary winding of the link or, for example, in the middle of this angular displacement stroke according to the desired reactivity.
[0051] Dans les exemples représentés, chacun des systèmes 6 de maintien comprend un organe 10 rotatif d'enroulement du lien autour duquel le lien s'enroule partiellement, et un organe 11 de rappel élastique formé par un ressort 111 équipant ledit organe 10 rotatif. Le dispositif 8 de détection d'une déformation du lien 5 comprenant un organe 9 de détection d'une déformation du lien 5 formé par un organe 9 de détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien 5 équipe un seul des systèmes 6 de maintien dit système 61 de maintien principal. La raideur du ressort 111 équipant ce système 61 de maintien principal est inférieure à la raideur du ressort 111 équipant l'autre système 6 de maintien. In the examples shown, each of the holding systems 6 comprises a rotary member 10 for winding the link around which the link partially wound, and an elastic return member 11 formed by a spring 111 fitted to said rotary member 10. The device 8 for detecting a deformation of the link 5 comprising a member 9 for detecting a deformation of the link 5 formed by a member 9 for detecting the angular position of the rotary member 10 for winding the link 5 is fitted with a only the maintenance systems 6 called the main maintenance system 61. The stiffness of the spring 111 fitted to this main holding system 61 is less than the stiffness of the spring 111 fitted to the other holding system 6.
[0052] La nacelle 1 comprend encore un système 13 de réinitialisation du fonctionnement de la ou des commandes 4 du système2 d'entraînement en déplacement de la plateforme à l'état empêché des commandes 4 de fonctionner, ce système 13 comprenant un organe 131 de réinitialisation actionnable manuellement. The nacelle 1 further comprises a system 13 for resetting the operation of the control (s) 4 of the drive system 2 in displacement of the platform in the prevented state of the controls 4 from operating, this system 13 comprising a member 131 of manually operable reset.
[0053] Le fonctionnement d'une nacelle 1 telle que décrite ci-dessus s'opère comme suit : les systèmes 6 de maintien sont fixés à la plateforme 7 dans une position dans laquelle le lien 5 est à l'état tendu entre les systèmes 6 de maintien et forme une ligne sensiblement horizontale séparant l'espace disposé au-dessus du pupitre 3 de commande et l'emplacement 71 de réception d'un opérateur 30 comme illustré à la figure 1. Dans cette position, le lien 5 est maintenu tendu sous l'action des organes 11 de rappel élastique. The operation of a nacelle 1 as described above takes place as follows: the holding systems 6 are fixed to the platform 7 in a position in which the link 5 is in the tensioned state between the systems 6 holding and forms a substantially horizontal line separating the space arranged above the control panel 3 and the location 71 for receiving an operator 30 as shown in Figure 1. In this position, the link 5 is maintained stretched under the action of members 11 of elastic return.
[0054] Au niveau de chaque système 6 de maintien, la butée 14 est, en particulier le plot 141 constitutif de ladite butée, est disposée entre les extrémités du chemin 142 de guidage ménagées sur l'organe 10 rotatif d'enroulement du lien 5 de sorte que l'organe 10 rotatif d'enroulement peut être déplacé angulairement dans le sens horaire ou anti-horaire. At each holding system 6, the stop 14 is, in particular the stud 141 constituting said stop, is arranged between the ends of the guide path 142 formed on the rotary member 10 for winding the link 5 so that the rotating winding member 10 can be angularly moved clockwise or counterclockwise.
[0055] L'organe 9 de détection d'une déformation du lien 5 par détection de la position angulaire de l'organe 10 rotatif d'enroulement du lien est à l'état inactif. Dans le cas d'un organe 9 de détection de type bouton-poussoir tel que représenté, la partie mobile du bouton-poussoir est logée dans l'encoche ménagée sur le pourtour de la roue 101 constitutive de l'organe 10 rotatif d'enroulement du lien 5 comme décrit ci-dessus. [0056] Sous l'effet d'une pression appliquée sur le lien 5 et résultant d'un mouvement de l'opérateur en direction du pupitre 3 de commande, le lien 5 est déformé généralement dans le sens d'une augmentation du volume de l'emplacement 71 de réception de l'opérateur 30. Cette déformation du lien par pression sur le lien 5 entraîne un déplacement angulaire des organes 10 rotatifs d'enroulement du lien 5 à l'encontre de l'action des organes 11 de rappel élastique dans le sens d'un déroulement du lien 5 desdits organes 10 rotatifs d'enroulement du lien 5. The member 9 for detecting a deformation of the link 5 by detecting the angular position of the rotary member 10 for winding the link is in the inactive state. In the case of a push-button type detection member 9 as shown, the movable part of the push-button is housed in the notch provided on the periphery of the wheel 101 constituting the rotary winding member 10. of link 5 as described above. Under the effect of pressure applied to the link 5 and resulting from a movement of the operator towards the control panel 3, the link 5 is generally deformed in the direction of an increase in the volume of the location 71 for receiving the operator 30. This deformation of the link by pressure on the link 5 causes an angular displacement of the rotary members 10 for winding the link 5 against the action of the elastic return members 11 in the direction of unwinding of the link 5 of said rotary members 10 for winding the link 5.
[0057] En effet, à chacune de ses extrémités le lien 5 tire, sous l'effet de la pression à laquelle il est soumis, sur l'organe 10 rotatif d'enroulement du lien auquel il est couplé par son extrémité 51. Ce déplacement angulaire de l'organe 10 rotatif d'enroulement du lien est détecté par l'organe 9 de détection d'une déformation du lien dont la partie mobile est déplacée par contact d'appui avec le pourtour de l'organe 10 rotatif d'enroulement du lien. Indeed, at each of its ends the link 5 pulls, under the effect of the pressure to which it is subjected, on the rotary member 10 for winding the link to which it is coupled by its end 51. This angular displacement of the rotary member 10 for winding the link is detected by the member 9 for detecting a deformation of the link, the movable part of which is moved by bearing contact with the periphery of the rotary member 10 of winding of the link.
[0058] En effet, le pourtour de l'organe 10 rotatif d'enroulement du lien en contact avec la partie mobile de l'organe 9 de détection d'une déformation du lien n'est plus formé par le creux de l'encoche mais par les bords de l'encoche. Le déplacement de cette partie mobile de l'organe 9 de détection correspond au passage dudit organe 9 de détection d'une déformation du lien d'un état inactif à un état actif. Cette activation est détectée par l'unité 12 de commande qui émet un signal de commande d'arrêt du fonctionnement des commandes 4 du système 2 d'entraînement en déplacement de la plateforme 7 et donc un arrêt en déplacement de la plateforme 7. En parallèle, un dispositif d'avertissement, lorsqu'il est présent, peut être activé et une alarme peut être émise. Indeed, the periphery of the rotary member 10 for winding the link in contact with the movable part of the member 9 for detecting a deformation of the link is no longer formed by the hollow of the notch. but by the edges of the notch. The movement of this movable part of the detection member 9 corresponds to the passage of said member 9 for detecting a deformation of the link from an inactive state to an active state. This activation is detected by the control unit 12 which emits a control signal for stopping the operation of the controls 4 of the drive system 2 in displacement of the platform 7 and therefore a stopping in displacement of the platform 7. In parallel , a warning device, when present, can be activated and an alarm can be issued.
[0059] L'arrêt en déplacement de la plateforme 7 s'opère avant que l'organe 10 rotatif d'enroulement du lien 5 soit en position de fin de course par rapport à la butée 14. Il est alors possible à l'opérateur d'exercer une pression supplémentaire sur le lien 5 pour générer un déplacement angulaire supplémentaire des organes 10 rotatifs d'enroulement du lien et se dégager un espace entre, par exemple, un obstacle 31 qui le pousserait dans le dos et le lien 5. L'opérateur peut alors actionner l'organe 131 de réinitialisation et commander à nouveau un déplacement de la plateforme. Cette commande permet à l'opérateur de se dégager du lien. Une fois le lien 5 libéré de toute pression de l'opérateur, ce lien 5 revient dans sa position initiale et le fonctionnement normal de la nacelle peut reprendre. The stop movement of the platform 7 takes place before the rotary member 10 for winding the link 5 is in the end-of-travel position relative to the stop 14. It is then possible for the operator exerting additional pressure on the link 5 to generate an additional angular displacement of the rotary members 10 for winding the link and freeing up a space between, for example, an obstacle 31 which would push it in the back and the link 5. L The operator can then actuate the reset member 131 and again order a movement of the platform. This command allows the operator to disengage from the link. Once link 5 has been released from all pressure the operator, this link 5 returns to its initial position and normal operation of the nacelle can resume.

Claims

Revendications Claims
[Revendication 1] Nacelle (1) comprenant : [Claim 1] Platform (1) comprising:
-une plateforme (7) présentant un emplacement (71) de réception d’un opérateur (30), -a platform (7) having a location (71) for receiving an operator (30),
-un système (2) d’entraînement en déplacement de la plateforme (7), -a system (2) for moving the platform (7),
-un pupitre (3) de commande porté par la plateforme (7) et équipé d’au moins une commande (4) du système (2) d’entraînement en déplacement de la plateforme (7), actionnable manuellement, -a control panel (3) carried by the platform (7) and equipped with at least one control (4) of the drive system (2) for moving the platform (7), which can be operated manually,
-un lien (5) de sécurité flexible , -a flexible security link (5),
-deux systèmes (6) de maintien du lien (5) disposés l’un, à l’une des extrémités (51) du lien (5), l’autre, à l’autre des extrémités (51) du lien (5), pour un maintien du lien (5) dans au moins une position dans laquelle le lien (5) s’étend à travers la plateforme et forme une ligne de démarcation entre une partie de l’emplacement (71) de réception d’un opérateur de la plateforme (7) et le pupitre (3) de commande, -two systems (6) for maintaining the link (5) arranged one at one of the ends (51) of the link (5), the other at the other of the ends (51) of the link (5) ), for maintaining the link (5) in at least one position in which the link (5) extends through the platform and forms a dividing line between part of the location (71) for receiving a operator of the platform (7) and the control panel (3),
-un dispositif (8) de détection d'une déformation du lien (5) comprenant au moins un organe (9) de détection d'une déformation du lien (5), ledit organe-a device (8) for detecting a deformation of the link (5) comprising at least one member (9) for detecting a deformation of the link (5), said member
(9) de détection étant configuré pour, sous l’effet d’une déformation du lien (5), passer d’un état dit inactif dans lequel le fonctionnement de la ou des commandes (4) du système (2) d’entraînement en déplacement de la plateforme (7) n’est pas empêché à un état dit actif dans lequel le fonctionnement de la ou des commandes (4) est empêché, caractérisée en ce qu’au moins l’un, de préférence chacun, des systèmes (6) de maintien comprend un organe (10) rotatif d’enroulement du lien (5) autour duquel le lien (5) couplé audit organe (10) rotatif s’enroule partiellement, ledit organe(9) detection being configured to, under the effect of a deformation of the link (5), pass from a so-called inactive state in which the operation of the control (s) (4) of the drive system (2) movement of the platform (7) is not prevented in a so-called active state in which the operation of the control (s) (4) is prevented, characterized in that at least one, preferably each, of the systems (6) for maintaining comprises a rotary member (10) for winding the link (5) around which the link (5) coupled to said rotary member (10) partially winds, said member
(10) rotatif étant équipé d’au moins un organe (11 ) de rappel élastique dudit organe (10) rotatif configuré pour exercer sur ledit organe (10) rotatif un effort d’entraînement en déplacement angulaire de l’organe (10) rotatif dans le sens d’un enroulement du lien (5) autour dudit organe (10) rotatif. (10) rotary being equipped with at least one member (11) for elastic return of said rotary member (10) configured to exert on said rotary member (10) a driving force in angular displacement of the rotary member (10) in the direction of winding the link (5) around said rotary member (10).
[Revendication 2] Nacelle (1) selon la revendication 1, caractérisée en ce que le ou au moins l’un des organes (9) de détection d'une déformation du lien (5) est un organe de détection de la position angulaire de l’organe (10) rotatif d’enroulement du lien (5) de l’un des systèmes (6) de maintien. [Revendication 3] Nacelle (1) selon l’une des revendications 1 ou 2, caractérisée en ce que la nacelle (1) comprend une unité (12) de commande avec laquelle le dispositif (8) de détection d'une déformation du lien (5) est configuré pour communiquer, cette unité (12) de commande étant configurée pour émettre un signal de commande d’arrêt du fonctionnement des commandes (4) du système (2) d’entraînement en déplacement de la plateforme (7) en fonction des données reçues du dispositif (8) de détection. [Claim 2] Platform (1) according to claim 1, characterized in that the or at least one of the members (9) for detecting a deformation of the link (5) is a member for detecting the angular position of the rotary member (10) for winding the link (5) of one of the holding systems (6). [Claim 3] Platform (1) according to one of claims 1 or 2, characterized in that the platform (1) comprises a control unit (12) with which the device (8) for detecting a deformation of the link (5) is configured to communicate, this control unit (12) being configured to issue a control signal for stopping the operation of the controls (4) of the system (2) for driving the platform (7) in motion. according to the data received from the detection device (8).
[Revendication 4] Nacelle (1) selon la revendication 3, caractérisée en ce que le ou au moins l’un des organes (9) de détection d'une déformation du lien (5) est un capteur (91 ) de détection de la position angulaire de l’organe[Claim 4] Platform (1) according to claim 3, characterized in that the or at least one of the members (9) for detecting a deformation of the link (5) is a sensor (91) for detecting the angular position of the organ
(10) rotatif d’enroulement du lien (5) de l’un des systèmes (6) de maintien par contact avec ledit organe (10) rotatif d'enroulement du lien (5) ou sans contact, ce capteur (91) étant relié électriquement à l’unité (12) de commande et étant configuré pour adresser à l’unité (12) de commande un signal électrique en fonction au moins de la position angulaire de l’organe (10) rotatif d’enroulement du lien (5) dudit système (6) de maintien. (10) rotary winding of the link (5) of one of the holding systems (6) by contact with said rotary member (10) for winding the link (5) or without contact, this sensor (91) being electrically connected to the control unit (12) and being configured to send to the control unit (12) an electrical signal as a function at least of the angular position of the rotating member (10) for winding the link ( 5) of said holding system (6).
[Revendication 5] Nacelle (1) selon l’une des revendications 1 à 4, caractérisée en ce que la nacelle (1) comprend un système (13) de réinitialisation du fonctionnement de la ou des commandes du système d’entraînement en déplacement de la plateforme, à l’état empêché des commandes (4) de fonctionner, ce système (13) comprenant un organe (131) de réinitialisation actionnable manuellement. [Claim 5] Platform (1) according to one of claims 1 to 4, characterized in that the platform (1) comprises a system (13) for resetting the operation of the control (s) of the drive system in displacement of the platform, in the disabled state of the controls (4) from functioning, this system (13) comprising a manually operable reset member (131).
[Revendication 6] Nacelle (1) selon l’une des revendications 1 à 5, caractérisée en ce que l’organe (10) rotatif d’enroulement du lien (5) de l’un des systèmes (6) de maintien est une roue (101 ) de poulie portée par un axe[Claim 6] Platform (1) according to one of claims 1 to 5, characterized in that the rotary member (10) for winding the link (5) of one of the holding systems (6) is a pulley wheel (101) carried by an axle
(102) disposé de manière stationnaire sur la plateforme (7), ladite roue (101) de poulie présentant une jante (103) configurée pour recevoir le lien (5) couplé par l’une de ses extrémités (51) à la roue (101) et en ce que l’organe (11 ) de rappel élastique dudit organe (10) rotatif d’enroulement est un ressort, de préférence de torsion. (102) stationary on the platform (7), said pulley wheel (101) having a rim (103) configured to receive the link (5) coupled at one of its ends (51) to the wheel ( 101) and in that the member (11) for resiliently returning said rotary winding member (10) is a spring, preferably a torsion spring.
[Revendication 7] Nacelle (1) selon l’une des revendications 1 à 6, caractérisée en ce que la nacelle (1) comprend une butée (14) de limitation en déplacement angulaire de l’organe (10) rotatif d’enroulement du lien (5) de l’un des systèmes (6) de maintien, ladite butée (14) étant configurée pour limiter le déplacement angulaire de l’organe (10) rotatif au-delà d’une course de déplacement prédéterminée d’une part, à l’état entraîné de l’organe (10) rotatif dans le sens horaire, d’autre part, à l’état entraîné de l’organe (10) rotatif dans le sens anti-horaire. [Revendication 8] Nacelle (1) selon l’une des revendications 1 à 7, caractérisée en ce que, la nacelle (1) comprenant une butée (14) de limitation en déplacement angulaire de l’organe (10) rotatif d’enroulement du lien (5) de l’un des systèmes (6) de maintien, ladite butée (14) étant configurée pour limiter le déplacement angulaire de l’organe (10) rotatif au moins dans le sens d’un déroulement du lien dudit organe (10) rotatif au-delà d’une course de déplacement angulaire prédéterminée dudit organe (10) rotatif, l’organe (9) de détection d'une déformation du lien (5) est configuré pour, sous l’effet d’une déformation du lien (5), passer d’un état inactif à un état actif dans une position angulaire dudit organe (10) rotatif d’enroulement du lien (5) autre que la ou au moins l’une des positions angulaires dudit organe (10) rotatif d’enroulement du lien correspondant à une position de fin de course dudit organe (10) rotatif d’enroulement matérialisée par ladite butée (14). [Claim 7] Platform (1) according to one of claims 1 to 6, characterized in that the platform (1) comprises a stop (14) for limiting the angular displacement of the rotary member (10) for winding the link (5) of one of the holding systems (6), said stop (14) being configured to limit the angular displacement of the rotary member (10) beyond a predetermined displacement stroke on the one hand, in the driven state of the clockwise rotary member (10), on the other hand, in the driven state of the counterclockwise rotating member (10). [Claim 8] Platform (1) according to one of claims 1 to 7, characterized in that, the platform (1) comprising a stop (14) for limiting the angular displacement of the rotary winding member (10) of the link (5) of one of the holding systems (6), said stopper (14) being configured to limit the angular displacement of the rotary member (10) at least in the direction of an unwinding of the link of said member (10) rotating beyond a predetermined angular displacement stroke of said rotary member (10), the member (9) for detecting a deformation of the link (5) is configured for, under the effect of a deformation of the link (5), go from an inactive state to an active state in an angular position of said rotary member (10) for winding the link (5) other than the or at least one of the angular positions of said member ( 10) rotary winding of the link corresponding to an end position of said rotary winding member (10) materialized by said stop (14).
[Revendication 9] Nacelle (1) selon l’une des revendications 1 à 8, caractérisée en ce que chacun des systèmes (6) de maintien comprenant un organe (10) rotatif d’enroulement du lien (5) autour duquel le lien s’enroule partiellement, et un organe (11 ) de rappel élastique formé par un ressort (111) équipant ledit organe (10) rotatif, et le dispositif (8) de détection d'une déformation du lien (5) comprenant un organe (9) de détection d'une déformation du lien (5) formé par un organe de détection de la position angulaire de l’organe (10) rotatif d’enroulement du lien (5) d’un seul des systèmes (6) de maintien dit système (61) de maintien principal, la raideur du ressort (111) équipant ce système (61 ) de maintien principal est inférieure à la raideur du ressort (111) équipant l’autre système (6) de maintien. [Claim 9] Platform (1) according to one of claims 1 to 8, characterized in that each of the holding systems (6) comprising a rotary member (10) for winding the link (5) around which the link s 'partially wound, and an elastic return member (11) formed by a spring (111) fitted to said rotary member (10), and the device (8) for detecting a deformation of the link (5) comprising a member (9) ) for detecting a deformation of the link (5) formed by a member for detecting the angular position of the rotary member (10) for winding the link (5) of only one of the so-called holding systems (6) main holding system (61), the stiffness of the spring (111) fitted to this main holding system (61) is less than the stiffness of the spring (111) fitted to the other holding system (6).
[Revendication 10] Nacelle (1) selon l’une des revendications 1 à 9, caractérisée en ce que la nacelle (1 ) est une nacelle élévatrice. [Claim 10] Platform (1) according to one of claims 1 to 9, characterized in that the platform (1) is a lifting platform.
EP20772365.1A 2019-09-17 2020-08-17 Basket, notably aerial basket lifting device Active EP4031477B1 (en)

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AU (1) AU2020349066A1 (en)
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CN108751070A (en) * 2018-06-28 2018-11-06 艾陌极智能装备（深圳）有限公司 Intelligent high-lift operation hanging cradle pair rope detector

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HUE064838T2 (en) 2024-04-28
PL4031477T3 (en) 2024-03-11
FR3100805B1 (en) 2021-08-13
CN114401919A (en) 2022-04-26
CN114401919B (en) 2023-09-08
CA3149948A1 (en) 2021-03-25
EP4031477B1 (en) 2023-10-04
FR3100805A1 (en) 2021-03-19
AU2020349066A1 (en) 2022-03-24
WO2021053280A1 (en) 2021-03-25

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