EP2711330A1 - Hub- oder Fördersystem und Verfahren zur Stabilisierung einer mobilen Hubarbeitsbühne - Google Patents

Hub- oder Fördersystem und Verfahren zur Stabilisierung einer mobilen Hubarbeitsbühne Download PDF

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Publication number
EP2711330A1
EP2711330A1 EP13183114.1A EP13183114A EP2711330A1 EP 2711330 A1 EP2711330 A1 EP 2711330A1 EP 13183114 A EP13183114 A EP 13183114A EP 2711330 A1 EP2711330 A1 EP 2711330A1
Authority
EP
European Patent Office
Prior art keywords
mewp
crane
mats
mobile crane
outrigger
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.)
Withdrawn
Application number
EP13183114.1A
Other languages
English (en)
French (fr)
Inventor
Dirk Reedijk
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.)
Reedijk Hydrauliek BV
Original Assignee
Reedijk Hydrauliek BV
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 Reedijk Hydrauliek BV filed Critical Reedijk Hydrauliek BV
Publication of EP2711330A1 publication Critical patent/EP2711330A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms

Definitions

  • the invention relates to the field of mobile elevating work platforms (MEWPs) or mobile elevating equipment such as cranes or lifts or the like and more specifically to the placement of outrigger mats (or pads) for such mobile platforms or equipment.
  • MEWPs mobile elevating work platforms
  • mobile elevating equipment such as cranes or lifts or the like
  • outrigger mats or pads
  • the present invention relates to the field of mobile elevating work platforms (MEWPs) or mobile elevating equipment.
  • platforms or equipment e.g. include comparatively large mobile cranes, mobile aerial working platforms or lifts which require, for stability purposes, the use of outriggers and outriggers mats.
  • outrigger mats also referred to as pads
  • pads need to be applied in order for the pressure exerted on the ground to remain below a safety value when used.
  • outrigger mats typically have a square or round shape, are provided with handles and are positioned manually below the outriggers.
  • pads or mats can e.g. be made from plastic, timber or steel.
  • the weight and size of such mats increases as well.
  • the manual positioning of such pads e.g. by a single person such as the driver of the MEWP may become difficult.
  • the weight of a single outrigger mat can be 200 kg or more.
  • a lifting or hoisting system comprising:
  • a lifting or hoisting system comprising an MEWP such as a crane or lift which comprises a set of outriggers.
  • the present invention is particularly aiming for the stabilization of mobile elevating platforms or lifting equipment e.g. including truck mounted hydraulic platforms, aerial working platforms, cranes or lifts that require the use of outrigger mats which are too large or heavy to be handled manually.
  • the mobile elevating platform or lifting equipment is in general denoted as an MEWP (mobile elevating working platform).
  • MEWP mobile elevating working platform
  • EN 280 European standard EN 280 for such platforms.
  • the application of outrigger mats is facilitated by the use of a mobile crane which is, during transport, mounted to the MEWP.
  • the MEWP is provided with a crane holder for holding the mobile crane during transport.
  • the MEWP e.g. a truck mounted hydraulic platform or crane or lift
  • the system according to the present invention further comprises a storage area for storing a set of outrigger mats.
  • the outrigger mats are stored in a horizontal position.
  • the mobile crane can unload, by means of a hoisting tool such as a hoisting hook, the outrigger mats and put the outrigger mats at the appropriate positions.
  • a hoisting tool such as a hoisting hook
  • the use of a mobile crane which is mounted to the MEWP to be stabilized can provide in the following advantages:
  • the overall length or size of the MEWP is not substantially affected by the use of the mobile crane, thus avoiding objections to bringing the system into traffic.
  • the use of a mobile crane provides in a more flexible, faster way to unload and position the outrigger mats:
  • the MEWP can be driven into its operating position, the outrigger mats can be subsequently unloaded and positioned and the outriggers can be positioned onto the outriggers mats.
  • the MEWP needs to be positioned, in a first instance, beyond the operating position such that the trailer is in the appropriate position for unloading and positioning the outrigger mats.
  • the MEWP has to be moved backwards to the operating position.
  • the use of a trailer thus requires additional movements of the MEWP, rendering the stabilization process more complex and time-consuming.
  • a mobile elevating work platform such as a crane or lift provided with a set of outriggers, the method comprising:
  • a mobile crane as applied in the system according to the invention can be easily adapted for operating in comparatively rough terrain, e.g. by the application of caterpillar tracks or the like.
  • the mobile crane of the lifting or hoisting system comprises a pivotable telescopic arm.
  • the mobile crane can comprise a fixed arm or telescopic arm whereto an hoisting tool is mounted for unloading the outrigger mats.
  • a recess is provided along a longitudinal side of the MEWP, the recess being used to receive the mobile crane.
  • the mobile crane can be easily transported to the operating site.
  • the recess and mobile crane can be adapted to hold the mobile crane in a position wherein an outer longitudinal surface of the mobile crane is substantially flush with the longitudinal side of the MEWP.
  • the mobile crane can be mounted so as not to extend outside an outer circumference of the MEWP when seen in plan view.
  • the crane holder of the MEWP which is preferably provided in the recess, comprises a support shaft for mounting the mobile crane thereto.
  • the support shaft has a substantially vertical orientation.
  • the mounting of the mobile crane to the crane holder of the MEWP can be realized by directing a telescopic arm of the mobile crane downward and lifting the mobile crane upward by extending the telescopic arm, when the support shaft is inserted in a hollow shaft of an end part of the telescopic arm.
  • the support shaft can be hollow and adapted to receive an end part of the telescopic arm.
  • the support shaft of the crane holder is rotatable about a vertical axis for, in use, rotating the mobile crane about the vertical axis, thereby positioning the mobile crane inside the outer circumference of the MEWP.
  • the storage area of the MEWP comprises a support structure for supporting the outrigger mats, wherein the support structure is displaceable in a horizontal direction substantially perpendicular to a longitudinal axis of the MEWP.
  • the displaceable support structure may facilitate the unloading of the outrigger mats.
  • the storage area of the outrigger mats is e.g. partly underneath a beam of the MEWP, the displaceable support structure enables to bring the outrigger mats from underneath the beam, i.e. bring the outrigger mats to a more outward position, thus facilitating the unloading by the mobile crane.
  • the support structure comprises a bearing enabling the support structure and the outrigger mats to be displaced manually.
  • the support structure can comprise an hydraulic cylinder for displacing the support structure and the outrigger mats.
  • Figure 1 schematically depicts a side view of an example of a MEWP, i.e. a crane 100 of a lifting or hoisting system according to the invention, the crane comprising a beam 105 and a set of outriggers 110.
  • Figure 1 further shows a storage area 120 on the lift for storing outrigger mats 130.
  • Mounted along a longitudinal side of the lift is a mobile crane 140 which is, in the position shown, positioned above ground level and thus can be transported along with the crane 100.
  • the crane 100 is provided with a platform 106 for carrying on or more operators.
  • a hoisting tool can be mounted to the end of the beam 105.
  • FIG 2 a plan (top) view of the crane 100 of Figure 1 is schematically shown.
  • Figure 2 further schematically shows the beam 105, the outrigger mats 130 as mounted to the crane and the mobile crane 140 mounted along a longitudinal side 200 of the crane 100.
  • the mobile crane 140 is provided in a recess of the crane 100, the recess being provided along the longitudinal side 200 of the crane.
  • a more detailed view on the recess is provided below.
  • the outer circumference or contour of the crane (such circumference corresponding to a rectangle having a length and width corresponding to the length and the width of the crane) is indicated by the dotted line 210.
  • the overall width and length of the crane 100 is substantially not affected by the mounted mobile crane.
  • maneuvering with the MEWP i.e. the crane 100
  • the crane 100 is provided with a crane holder (not shown) for holding the mobile crane 140.
  • An embodiment of such a crane holder is discussed in more detail below.
  • the mobile crane 140 comprises a telescopic arm 300 which can pivot about a horizontal axis at a pivot point 310 and which can rotate about a vertical axis by rotating the shaft 315 that is rotatably mounted to a body 320 of the mobile crane 140 (Note that, as an alternative, the mobile crane can comprises a non-rotatable or non-pivotable arm or telescopic arm).
  • An end part 330 of the telescopic arm 300 is provided with a hoisting tool, e.g. a hoisting hook 340.
  • the mobile crane is further provided with caterpillar tracks 350 and a support platform 360 for supporting an operator.
  • Figure 4 shows two side views of the mobile crane 140 of Figure 3 .
  • the telescopic arm 300 In the side view on the left, the telescopic arm 300, the caterpillar tracks 350 and the support platform 360 are shown.
  • the telescopic arm 300 is shown in a folded position, wherein the telescopic position is directed downward.
  • the telescopic arm 300 is further secured to the body 320 of the crane by a securing mechanism 400.
  • a front view of the mobile crane 140 is shown.
  • the mobile crane is constructed asymmetrically with respect to a central axis 420. Doing so facilitates the mounting of the mobile crane 140 in a recess of the crane (100, see e.g.
  • the MEWP of the lifting or hoisting system is provided with a crane holder for holding the mobile crane during transport.
  • a vertically displaceable platform could be applied whereby the mobile crane can be driven onto the platform and subsequently rotate.
  • the platform can be arranged to rotate the mobile crane when the mobile crane is on the platform.
  • the platform may be moved inwardly to ensure that an outer longitudinal surface of the mobile crane (e.g. the outer surface 430 of the caterpillar tracks 350 as shown in Figure 4 ) is substantially flush with the longitudinal side (200, see Figure 2 ) of the crane.
  • Figure 5 schematically shows a crane holder 500, the crane holder 500 comprising a support shaft 510 which is directed in a substantially vertical direction.
  • the support shaft is shown in two positions (POS1, POS2), the crane holder 500 comprising a rotation mechanism (not shown) for rotating the support shaft 510 from the first position (POS1) to the second position (POS2) and vice versa.
  • POS1 first position
  • POS2 second position
  • Figure 6 a side view of the crane holder 500 including the support shaft 510.
  • the support shaft 510 in shown in the second position POS2.
  • Figure 6 further shows two of the outriggers 110 of the crane.
  • the crane holder 500 as shown in Figures 5 and 6 can be used in the following manner for holding the mobile crane.
  • the support shaft 510 is positioned in the first position POS1 (see Figure 5 ).
  • the mobile crane is subsequently positioned relative to the support shaft such that the end part of the telescopic arm 300 (see Figure 4 ) is above the support shaft 510.
  • the telescopic arm 300 is assumed to be in the downward position as shown in Figure 4 .
  • the end part of the telescopic arm is provided a hollow shaft dimensioned to receive the support shaft.
  • the support shaft 510 can be brought into the second position POS2 (as e.g. shown in Figure 6 ), thereby rotating the mobile crane about a vertical axis and bringing the mobile crane in a position as e.g. shown in Figure 2 .
  • the rotation of the mobile crane can either be performed manually or, as an alternative, a rotary actuator can be provided in the crane holder 500 for rotating the support shaft 510 between the first and second position.
  • the storage area of the MEWP (i.e. the mobile platform or lift or crane) of the system according to the present invention can be provided with a displaceable support structure.
  • Figure 7 schematically shows the storage area 120 of a crane 100, the storage area 120 comprising a support structure 700 supporting the outrigger mats 130.
  • the support structure 700 is displaceable in a horizontal direction substantially perpendicular to a longitudinal axis of the MEWP (indicated by the arrow 730).
  • the support structure can e.g. be provided with a bearing enabling a manual displacement of the outriggers mats 130 to an outward position.
  • the support structure 700 can be provided with an hydraulic cylinder for displacing the outrigger mats.
  • Figure 8 a plan view of the crane 100 as shown in Figure 7 is shown, showing the outrigger mats 130 on the right hand side of the crane 100 in an outward position.
  • Figure 8 also shows the recess 800 and the crane holder 500 including the support shaft 510 in both the first and second position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Jib Cranes (AREA)
EP13183114.1A 2012-09-20 2013-09-05 Hub- oder Fördersystem und Verfahren zur Stabilisierung einer mobilen Hubarbeitsbühne Withdrawn EP2711330A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2009495A NL2009495C2 (en) 2012-09-20 2012-09-20 Lifting or hoisting system and method of stabilizing a mobile elevating work platform.

Publications (1)

Publication Number Publication Date
EP2711330A1 true EP2711330A1 (de) 2014-03-26

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EP13183114.1A Withdrawn EP2711330A1 (de) 2012-09-20 2013-09-05 Hub- oder Fördersystem und Verfahren zur Stabilisierung einer mobilen Hubarbeitsbühne

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EP (1) EP2711330A1 (de)
NL (1) NL2009495C2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927179A1 (de) * 2014-04-03 2015-10-07 Advante Limited Auslegerplattenträger
JP2018122962A (ja) * 2017-01-31 2018-08-09 株式会社タダノ 作業車
JP7396211B2 (ja) 2020-06-15 2023-12-12 コベルコ建機株式会社 建設機械

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060267326A1 (en) * 2005-05-27 2006-11-30 Richard Ronnie J Storage system for a support mat
CN201800687U (zh) * 2010-09-28 2011-04-20 徐州重型机械有限公司 工程机械底盘及其支腿支撑装置
CN201901526U (zh) * 2010-12-17 2011-07-20 徐州重型机械有限公司 移动式起重机及其支脚垫板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060267326A1 (en) * 2005-05-27 2006-11-30 Richard Ronnie J Storage system for a support mat
CN201800687U (zh) * 2010-09-28 2011-04-20 徐州重型机械有限公司 工程机械底盘及其支腿支撑装置
CN201901526U (zh) * 2010-12-17 2011-07-20 徐州重型机械有限公司 移动式起重机及其支脚垫板

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927179A1 (de) * 2014-04-03 2015-10-07 Advante Limited Auslegerplattenträger
JP2018122962A (ja) * 2017-01-31 2018-08-09 株式会社タダノ 作業車
JP7396211B2 (ja) 2020-06-15 2023-12-12 コベルコ建機株式会社 建設機械

Also Published As

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