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WO2018160940A1 - Système de détection de proximité d'obstruction pour ensemble de plate-forme de travail mobile - Google Patents

Système de détection de proximité d'obstruction pour ensemble de plate-forme de travail mobile Download PDF

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Publication number
WO2018160940A1
WO2018160940A1 PCT/US2018/020615 US2018020615W WO2018160940A1 WO 2018160940 A1 WO2018160940 A1 WO 2018160940A1 US 2018020615 W US2018020615 W US 2018020615W WO 2018160940 A1 WO2018160940 A1 WO 2018160940A1
Authority
WO
WIPO (PCT)
Prior art keywords
work platform
obstruction
assembly
platform
platform assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2018/020615
Other languages
English (en)
Inventor
Lajesh NAND
Adam J. Hailey
Jeremy A. RIFE
Michael J. Quiring
Dax B. Wells
Greg R. HIERONYMUS
Chad R. HISLOP
Chad E. WICKLUND
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.)
Terex South Dakota Inc
Original Assignee
Terex South Dakota Inc
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 Terex South Dakota Inc filed Critical Terex South Dakota Inc
Publication of WO2018160940A1 publication Critical patent/WO2018160940A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • 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
    • B66F11/046—Working platforms suspended from booms of the telescoping type

Definitions

  • the disclosure relates to safety devices for mobile work platforms.
  • a vehicle may comprise a vehicle body, a support assembly connected to the vehicle body, and a mobile work platform assembly supported by the support assembly so that the work platform assembly is movable with respect to the vehicle body.
  • the work platform assembly may include a platform, a control arrangement associated with platform for controlling movement of the platform, an obstruction proximity sensing system associated with the platform, and an enabling element associated with the work platform.
  • the obstruction proximity sensing system may include one or more sensors for sensing potential obstructions proximate the platform, and one or more indicators for indicating to an operator of the work platform assembly presence of an obstruction proximate the platform.
  • the enabling element is activatable in order to allow operation of the obstruction proximity sensing system, and the control arrangement is configured to allow continued operation of the work platform assembly when an obstruction is sensed.
  • a mobile work platform assembly for use with a support assembly that is configured to move the mobile work platform assembly.
  • the mobile work platform assembly may comprise a work platform sized to receive an operator, a control arrangement associated with the work platform for controlling movement of the work platform, an obstruction proximity sensing system associated with the work platform, and an enabling element associated with the work platform.
  • the obstruction proximity sensing system may include one or more sensors configured to sense potential obstructions proximate the work platform, and one or more indicators configured to indicate to the operator presence of an obstruction proximate the work platform as the work platform is moved.
  • the enabling element is activatable in order to allow operation of the obstruction proximity sensing system.
  • the control arrangement may be configured to allow continued movement of the work platform when an obstruction is sensed.
  • a vehicle may include a vehicle body, a support assembly connected to the vehicle body, and a mobile work platform assembly supported by the support assembly so that the work platform assembly is movable with respect to the vehicle body.
  • the work platform assembly may include a platform, a control arrangement associated with platform for controlling movement of the platform, an obstruction proximity sensing system associated with the platform, and a foot-switch mounted on the platform.
  • the obstruction proximity sensing system may include one or more sensors configured to sense potential obstructions proximate the platform, and one or more indicators configured to indicate to an operator of the work platform assembly presence of an obstruction proximate the platform. At least one of the one or more indicators may comprise a haptic indicator.
  • the foot-switch may be activatable in order to allow operation of the obstruction proximity sensing system.
  • the control arrangement may be configured to allow continued operation of the work platform assembly when an obstruction is sensed.
  • FIGURE 1 is a perspective view of a vehicle including a mobile work platform assembly according to the present disclosure
  • FIGURE 2 is an enlarged perspective view of the work platform assembly shown in
  • FIG. 1 wherein the work platform assembly includes an obstruction proximity sensing system according to the disclosure
  • FIGURE 3A is a perspective view of the work platform assembly showing example sensing zones of the obstruction proximity sensing system.
  • FIGURE 3B is a side view of the work platform assembly showing the sensing zones of the obstruction proximity sensing system.
  • FIG 1 shows a vehicle 10, according to the present disclosure, including a vehicle body 12, a support assembly 14 (e.g., lift arm, boom assembly, etc.) connected to the vehicle body 12, and a mobile work platform assembly 16 supported by the support assembly 14 so that the work platform assembly 16 is movable with respect to the vehicle body 12.
  • the work platform assembly 16 is provided with an obstruction proximity sensing system 18, according to the disclosure, for sensing potential obstructions to the work platform assembly 16 during operation of the work platform assembly 16, as explained below in detail.
  • the vehicle 10 may be any suitable vehicle, such as a boom lift, scissor lift, or any other suitable aerial lift.
  • vehicle body 12 may be supported on any suitable support members 20, such as one or more tires, tracks, outriggers, etc.
  • the vehicle body 12 is supported on multiple tires, two or more of which may be steerable.
  • the support assembly 14 likewise may be any suitable support assembly, such as a lift arm, vertical mast, an articulating boom assembly, telescopic boom assembly, scissor lift assembly, etc.
  • the support assembly 14 comprises a telescopic boom assembly 22 having multiple boom sections 24, wherein at least one boom section is received in, and movable relative to, another boom section.
  • the work platform assembly 16 includes a base or work platform 26 and a control arrangement 28 associated with the platform 26 for controlling movement of the platform 26.
  • the work platform assembly 16 includes the above mentioned obstruction proximity sensing system 18, which is also associated with the platform 26.
  • the platform 26 of the work platform assembly 16 is sized to receive an operator thereon.
  • a frame assembly 30 is provided on the platform 26, and the frame assembly 30 includes one or more guard rails that extend around a perimeter of the platform 26 to contain the operator within the frame assembly 30.
  • the frame assembly 30 includes a bottom rail 32, a toe board 33, a middle rail 34 and a top rail 36.
  • the frame assembly 30 further includes a movable (e.g., pivotable) door 38 to allow or permit operator ingress to, and egress from, the frame assembly 30.
  • the control arrangement 28 may include any suitable controls for controlling operation of the platform 26 (e.g., movement of the platform 26).
  • the control arrangement 28 may include a control unit 40 (e.g., electronic control unit, control box or control panel) having one or more controls 42, such as buttons, switches, levers (e.g., joysticks), etc., for inputting control commands.
  • a control unit 40 e.g., electronic control unit, control box or control panel
  • controls 42 such as buttons, switches, levers (e.g., joysticks), etc., for inputting control commands.
  • the above-mentioned obstruction proximity sensing system 18 is associated with the platform 26 and includes one or more proximity sensing units or sensors 44, such as infrared sensors, RADAR sensors, LIDAR sensors, photoelectric sensors, capacitive sensors, etc., for sensing potential obstructions proximate the platform 26 (e.g., proximate a portion of the work platform assembly 16).
  • proximity sensing units or sensors 44 such as infrared sensors, RADAR sensors, LIDAR sensors, photoelectric sensors, capacitive sensors, etc.
  • the obstruction proximity sensing system 18 may include any suitable number of sensors for sensing in any direction (e.g, forward, backward, upward, downward, etc.) relative to the platform 26, in the illustrated embodiment, the obstruction proximity sensing system 18 is provided with a first sensor 44a for sensing in a direction away from the control unit 40 (e.g., laterally away from the control unit 40 in a rearward direction as shown in Figs. 3A and 3B), and a second sensor 44b for sensing in an upward direction.
  • a first sensor 44a for sensing in a direction away from the control unit 40 (e.g., laterally away from the control unit 40 in a rearward direction as shown in Figs. 3A and 3B)
  • a second sensor 44b for sensing in an upward direction.
  • the first sensor 44a is mounted on a rear portion of the work platform assembly 16 (e.g., on the frame assembly 30), and the second sensor 44b is mounted on a front portion of the work platform assembly 16 (e.g., on support structure above the control unit 40).
  • the obstruction proximity sensing system 18 may include multiple sensors 44a that are configured to sense in the rearward direction and/or multiple sensors 44b that are configured to sense in the upward direction. As overhead and rear obstructions may provide the greatest risk of contact to the operator during operation of the work platform assembly 16, sensing areas or zones directed behind and above the work platform assembly 16 may provide the best opportunity to warn an operator of potential obstructions.
  • the obstruction proximity sensing system 18 may include one or more sensors 44 that are each configured to sense in multiple directions (e.g., rearward and upward).
  • each sensor 44a, 44b may be configured to sense any suitable size and shape sensing area or zone 45, such as a conical or cylindrical zone having a 6 to 10 foot length.
  • each sensor 44a, 44b is configured to sense a sensing zone 45 having a generally rectangular cross-section.
  • each sensing zone may have a width that approximates the width of the platform 26 proximate the platform 26 (e.g., within 2 to 4 feet of the platform 26).
  • each sensor 44a, 44b may be configured to sense from a maximum distance (e.g., 10 to 20 feet) away from the platform 26 all the way to the platform 26 (e.g., to the sensor 44a, 44b itself), but each sensor 44a, 44b may have a "non-reporting" area.
  • the sensor 44b may have a non-reporting area from the second sensor 44b to about 1.5 to 2 feet above the sensor 44b.
  • movement of the operator in the sensing zone 45 of the second sensor 44b may be detected by the second sensor 44b, but not reported by the second sensor 44b, or other component of the obstruction proximity sensing system 18, to a controller of the obstruction proximity sensing system 18, for example.
  • Each sensor 44a, 44b, or a controller or controllers associated with the obstruction proximity sensing system 18, may also be configured to automatically change size and/or shape of the associated sensing zone 45 based on vehicle configuration or position of the work platform assembly
  • each sensor 44a, 44b may be increased in size compared to the sensing zone for each sensor 44a, 44b when the support assembly 14 is in a raised or extended configuration and the work platform assembly 16 is positioned away from the vehicle body 12.
  • the sensing zone 45 of each sensor 44a, 44b may be generally decreased in size the further away the work platform assembly 16 is moved from the vehicle body 12.
  • each sensor 44a, 44b may have, or be configured to provide, a first sensing zone when the vehicle 10 is in a first configuration (e.g., the support assembly 14 is in a stowed configuration), and each sensor 44a, 44b may have, or be configured to provide, a second sensing zone different than the first sensing zone when the vehicle 10 is in a second configuration (e.g., the support assembly 14 is raised or extended).
  • the sensing zones 45 may be adjustable at any time (e.g., using controls of the obstruction proximity sensing system 18) so that the size and shape of each sensing zone may be adjusted as needed based on a particular application.
  • the obstruction proximity sensing system 18 may also include one or more indicators
  • the obstruction proximity sensing system 18 may include an audible alarm 46a for generating or otherwise providing an audible signal, a visual alarm 46b for generating or otherwise providing a visible signal, and/or a tactile or haptic indicator 46c for generating or otherwise providing a signal that can be felt by the operator to warn the operator of a sensed obstruction.
  • the indicators 46a, 46b, 46c are associated with the control unit 40.
  • the audible alarm 46a may include a speaker mounted on or near the control unit 40 for generating and/or transmitting an audible alarm signal, such as a beep
  • the visual alarm 46b may include a display mounted on or near the control unit 40 for displaying a visible alarm signal, such as one or more lights (e.g., LED's) or a flashing red or any other color image.
  • the audible alarm 46a and the visual alarm 46b are both incorporated into a display module (e.g., Pre View Display) that is mounted on or near the control unit 40, such as on support structure adjacent the control unit 40 (e.g., above or on a side of the control unit 40).
  • the haptic indicator 46c may include a device or mechanism (e.g, a vibration motor, such as an eccentric rotating mass vibration motor, or a vibration lever, etc.) in the control unit 40 that is configured to vibrate one of the one or more controls 42 (e.g., levers or joysticks) of the control unit 40, or another portion of the control unit 40, or the entire control unit 40, when an obstruction is sensed.
  • the haptic indicator 46c may vibrate a particular control 42 that is currently being used by the operator to move the work platform assembly 16.
  • the haptic indicator 46c may include a device or mechanism (e.g, a vibration motor, such as an eccentric rotating mass vibration motor, or a vibration lever, etc.) associated with (e.g., connected to) the platform 26 for vibrating the platform 26.
  • the obstruction proximity sensing system 18 may be configured to activate the one or more indicators 46a, 46b, 46c only if contact between the work platform assembly 16 and a sensed obstruction is possible or likely based on a current trajectory of the work platform assembly 16.
  • the obstruction proximity sensing system 18 may communicate with the control unit 40 and/or a geo-positional system (not shown) to determine a current trajectory of the work platform assembly 16, and the obstruction proximity sensing system 18 may be further configured to determine whether contact between the work platform assembly 16 and a sensed obstruction is possible or likely based on the current trajectory. As a result, nuisance indications to the operator may be avoided.
  • the obstruction proximity sensing system 18 may require acknowledgment by the operator that the one or more indicators 46a, 46b, 46c may be activated before doing so and/or the obstruction proximity sensing system 18 may include a mute or off function that enables the operator to disable one or more of the activated indicators 46a, 46b, 46c.
  • the obstruction proximity sensing system 18 may further include suitable controls (e.g., buttons, levers, switches, etc.) for such acknowledgment and off functions, and those controls may be provided on the control unit 40 or elsewhere on the work platform assembly 16, for example.
  • the obstruction proximity sensing system 18 may also be configured to increase frequency and/or intensity of the signals provided by the one or more indicators 46, and/or change some other aspect of the signals provided by the one or more indicators 46, as the platform 26 moves closer to a sensed obstruction.
  • the audible alarm 46a may increase volume and/or frequency of beeps as the platform 26 moves closer to a sensed obstruction.
  • the visual alarm 46b may be configured to increase number or brightness of lights that are activated.
  • the visual alarm 46b may change color of a light or lights that are activated.
  • the haptic indicator 46c may be configured to increase intensity and/or frequency of vibrations of the one or more controls 42 or other portion of the control unit 40 as the platform 26 moves closer to the sensed obstruction.
  • the obstruction proximity sensing system 18 may also include one or more controllers for controlling operation of the one or more sensors 44 and the one or more indicators 46.
  • each sensor 44 may be provided with a built-in controller and/or each indicator 46 may be provided with a built-in controller.
  • the obstruction proximity sensing system 18 may include a controller that is incorporated into the control unit 40.
  • the one or more controllers of the obstruction proximity sensing system 18, the control unit 40, and any other system, unit, or device described herein may individually, collectively, or in any combination comprise any suitable hardware, such as one or more processors (e.g., one or more microprocessors, microcontrollers and/or programmable digital signal processors), in communication with, or configured to communicate with, one or more storage devices or media including computer readable program instructions that are executable by the one or more processors so that the obstruction proximity sensing system 18, control unit 40, and any other system, unit, or device described herein may perform particular algorithms represented by the functions and/or operations described herein.
  • processors e.g., one or more microprocessors, microcontrollers and/or programmable digital signal processors
  • the one or more controllers of the obstruction proximity sensing system 18, the control unit 40, and any other system, unit, or device described herein may individually, collectively, or in any combination also, or instead, include one or more application specific integrated circuits, programmable gate arrays or programmable array logic, programmable logic devices, or digital signal processors.
  • the operator may enter the work platform assembly 16 through the door 38.
  • the operator may then move the work platform assembly 16 using the control unit 40.
  • the work platform assembly 16 may first require that the operator activate an enabling element, so that the control unit 40 may be operated to move the work platform assembly 16 and in order to activate the obstruction proximity sensing system 18.
  • the work platform assembly 16 may include a foot-switch 48 that the operator may step on in order to allow operation of the control unit 40 and the obstruction proximity sensing system 18.
  • the foot-switch 48 may be spaced away from the control unit 40, as shown in Figure 2, but may be connected (e.g., through a wireless connection or wired connection) to the control unit 40 and/or obstruction proximity sensing system 18.
  • the operator may move the work platform assembly 16 as desired using the controls
  • the controls 42 may be used to control movement of the support assembly 14 and/or movement of the work platform assembly 16 with respect to the support assembly 14.
  • the sensors 44 of the obstruction proximity sensing system 18 may sense surrounding areas or zones for the presence of obstructions. If an obstruction is detected that may come into contact with the work platform assembly 16 and/or the operator, the obstruction proximity sensing system 18 may generate one or more suitable signals to activate the one or more indicators 46 so that the one or more indicators 46 may provide operator detectable signals to alert the operator of the presence of the obstruction.
  • the one or more indicators 46 may include a haptic indicator configured to vibrate the foot-switch 48, or other enabling element, if an obstruction is detected that may come into contact with the work platform assembly 16 and/or the operator.
  • the obstruction proximity sensing system 18 and the control unit 40 may, however, be configured to allow continued operation (e.g., continued movement) of the work platform assembly 16 when an obstruction is sensed.
  • the obstruction proximity sensing system 18 may be configured to operate without changing or interfering with normal functionality of the work platform assembly 16. Nonetheless, upon activation of the one or more indicators 46, the operator may determine whether to discontinue movement of the work platform assembly 16 so that the operator may visually scan the surrounding area.
  • the obstruction proximity sensing system 18 may be configured to increase frequency and/or intensity of the signals provided by the indicators 46, and/or change some other aspect of the signals provided by the one or more indicators 46, as the platform 26 moves closer to a sensed obstruction. As a result, the obstruction proximity sensing system 18 may inform the operator about increased likelihood of the work platform assembly 16 contacting the obstruction. [0032] Furthermore, the obstruction proximity sensing system 18 and/or the control unit 40 may be configured to automatically stop movement of the work platform assembly 16 if the work platform assembly 16 is moved to within a predetermined distance (e.g., 100 to 200 centimeters, or 100 centimeters or less, or 50 centimeters or less) of an obstruction.
  • a predetermined distance e.g., 100 to 200 centimeters, or 100 centimeters or less, or 50 centimeters or less
  • the obstruction proximity sensing system 18 and/or the control unit 40 may also be configured to allow further movement of the work platform assembly 16 if the operator reactivates one or more of the controls 42, with the foot-switch 48 or other enabling element depressed or engaged.
  • the operator may disengage the foot-switch 48 or other enabling element in order to deactivate the obstruction proximity sensing system 18.
  • the operator may then move about the work platform 26 in order to perform work operations, for example.
  • Activating the obstruction proximity sensing system 18 only when the work platform assembly 16 is enabled to move allows the operator to perform his or her work without nuisance from audible, visual, or other signals or alarms when the work platform assembly 16 is not in motion.
  • the work platform assembly 16 may be configured for use with a trailer mounted support assembly, or a support assembly having a stationary base.
  • a mobile work platform assembly for use with a support assembly that is configured to move the mobile work platform assembly.
  • the mobile work platform assembly comprises a work platform sized to receive an operator, a control arrangement associated with the work platform for controlling movement of the work platform, and an obstruction proximity sensing system associated with the work platform.
  • the obstruction proximity sensing system may include one or more sensors for sensing potential obstructions proximate the work platform, and an indicator for indicating to the operator presence of an obstruction proximate the work platform as the work platform is moved.
  • the control arrangement may be configured to allow continued movement of the work platform when an obstruction is sensed.
  • the one or more sensors of the above mobile work platform assembly may include a first sensor for sensing in a direction away from the control arrangement, and a second sensor for sensing in an upward direction.
  • the control arrangement of the above mobile work platform assembly may comprise a control unit including one or more controls for controlling movement of the platform, and the indicator may be associated with the control panel.
  • the indicator of the above mobile work platform assembly may comprise a mechanism for vibrating one of the one or more controls of the control panel, or the entire control panel, when an obstruction is sensed.
  • the indicator may comprise a mechanism for vibrating the enabling element (e.g. foot- switch).
  • the above mechanism for vibrating the one control may be configured to increase intensity and/or frequency of vibrations as the platform moves closer to the sensed obstruction.
  • a vehicle may include a vehicle body, a support assembly connected to the vehicle body, and a mobile work platform assembly supported by the support assembly so that the work platform assembly is movable with respect to the vehicle body.
  • the work platform assembly may include a platform, a control arrangement associated with platform for controlling movement of the platform, and an obstruction proximity sensing system associated with the platform.
  • the obstruction proximity sensing system may include one or more sensors for sensing potential obstructions proximate the platform, and an indicator for indicating to an operator of the work platform assembly presence of an obstruction proximate the platform.
  • the control arrangement may be configured to allow continued operation of the work platform assembly when an obstruction is sensed.
  • the one or more sensors of the mobile work platform assembly of the above vehicle may include a first sensor for sensing in a direction away from the control arrangement, and a second sensor for sensing in an upward direction.
  • the control arrangement of the above vehicle may comprise a control unit including one or more controls for controlling movement of the platform, and the indicator may be associated with the control panel.
  • the indicator of the above vehicle may comprise a mechanism for vibrating one of the one or more controls of the control panel when an obstruction is sensed.
  • the above mechanism for vibrating the one control may be configured to increase intensity and/or frequency of vibrations as the platform moves closer to the sensed obstruction.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

L'invention porte sur un ensemble de plate-forme de travail mobile conçu pour être utilisé avec un ensemble de support qui est configuré pour déplacer l'ensemble de plate-forme de travail mobile. L'ensemble de plate-forme de travail mobile comprend une plate-forme de travail dimensionnée pour recevoir un opérateur, un dispositif de commande associé à la plate-forme de travail destiné à commander le mouvement de la plate-forme de travail, et un système de détection de proximité d'obstruction associé à la plate-forme de travail. Le système de détection de proximité d'obstruction peut comprendre un ou plusieurs capteurs destinés à détecter des obstructions potentielles à proximité de la plate-forme de travail, et un indicateur destiné à indiquer à l'opérateur la présence d'une obstruction à proximité de la plate-forme de travail lorsque la plate-forme de travail est déplacée. Le dispositif de commande peut être configuré pour permettre un mouvement continu de la plate-forme de travail lorsqu'une obstruction est détectée.
PCT/US2018/020615 2017-03-02 2018-03-02 Système de détection de proximité d'obstruction pour ensemble de plate-forme de travail mobile Ceased WO2018160940A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762466041P 2017-03-02 2017-03-02
US62/466,041 2017-03-02

Publications (1)

Publication Number Publication Date
WO2018160940A1 true WO2018160940A1 (fr) 2018-09-07

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2019217374A1 (fr) * 2018-05-07 2019-11-14 Terex South Dakota, Inc. Ensemble capteur de proximité
CN111613022A (zh) * 2019-06-05 2020-09-01 北新集团建材股份有限公司 一种生产监测系统
WO2020205162A1 (fr) * 2019-04-05 2020-10-08 Oshkosh Corporation Boîtier de commande de plateforme
US20230311769A1 (en) * 2022-03-31 2023-10-05 Cnh Industrial America Llc System and method for an agricultural applicator

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US20110025492A1 (en) * 2009-08-02 2011-02-03 Bravo Andres E Personal Object Proximity Alerting Device
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US20130233645A1 (en) * 2010-12-20 2013-09-12 Jlg Industries, Inc. Work platform with protection against sustained involuntary operation
US20130313040A1 (en) * 2010-07-02 2013-11-28 Blue Sky Solutions Limited Aerial lift with safety device
US20150368082A1 (en) * 2014-06-23 2015-12-24 The Boeing Company Collision avoidance system for scissor lift
US20160098910A1 (en) * 2014-10-02 2016-04-07 Bluesky Solutions Limited Safety Device

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Publication number Priority date Publication date Assignee Title
US20110025492A1 (en) * 2009-08-02 2011-02-03 Bravo Andres E Personal Object Proximity Alerting Device
US20130313040A1 (en) * 2010-07-02 2013-11-28 Blue Sky Solutions Limited Aerial lift with safety device
US20130233645A1 (en) * 2010-12-20 2013-09-12 Jlg Industries, Inc. Work platform with protection against sustained involuntary operation
US20130153333A1 (en) * 2011-12-15 2013-06-20 Paul Richards Safety device for an aerial lift, a method of operation thereof, an aerial lift having the safety device, a kit of parts and a method of installation thereof for providing the safety device in an aerial lift
US20150368082A1 (en) * 2014-06-23 2015-12-24 The Boeing Company Collision avoidance system for scissor lift
US20160098910A1 (en) * 2014-10-02 2016-04-07 Bluesky Solutions Limited Safety Device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019217374A1 (fr) * 2018-05-07 2019-11-14 Terex South Dakota, Inc. Ensemble capteur de proximité
WO2020205162A1 (fr) * 2019-04-05 2020-10-08 Oshkosh Corporation Boîtier de commande de plateforme
US10968089B2 (en) 2019-04-05 2021-04-06 Oshkosh Corporation Platform control box
CN111613022A (zh) * 2019-06-05 2020-09-01 北新集团建材股份有限公司 一种生产监测系统
US20230311769A1 (en) * 2022-03-31 2023-10-05 Cnh Industrial America Llc System and method for an agricultural applicator

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