WO2000002809A1 - Grue terrestre comportant une fleche rotative - Google Patents

Grue terrestre comportant une fleche rotative Download PDF

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Publication number
WO2000002809A1
WO2000002809A1 PCT/US1999/015646 US9915646W WO0002809A1 WO 2000002809 A1 WO2000002809 A1 WO 2000002809A1 US 9915646 W US9915646 W US 9915646W WO 0002809 A1 WO0002809 A1 WO 0002809A1
Authority
WO
WIPO (PCT)
Prior art keywords
boom
crane
mast
floor crane
outriggers
Prior art date
Application number
PCT/US1999/015646
Other languages
English (en)
Inventor
Dominic Spinosa
Frank Knoll
Original Assignee
East/West Industries, 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 East/West Industries, Inc. filed Critical East/West Industries, Inc.
Priority to AU48698/99A priority Critical patent/AU4869899A/en
Publication of WO2000002809A1 publication Critical patent/WO2000002809A1/fr

Links

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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/48—Manually-movable jib cranes for use in workshops

Definitions

  • the present invention is directed to improvements in mobile cranes and particularly to readily maneuverable mobile maintenance stand and crane apparatus suitable for vehicle and vehicle part servicing, maintenance and transportation, e.g. engines, aircraft ejection seats, etc. removal and replacement for use in normal and in confined areas by incorporating articulating and rotating outriggers providing for custom placement and full rotation.
  • Regent Manufacturing, Inc. of Downey, California produces a mobile floor crane bearing model number 9319-010.
  • This crane employs a stationary boom/mast assembly coupled to a wheel base having legs.
  • the invention provides a mobile, towable floor crane with sufficient reach, height, and lifting capacity to assist in the removal and installation, for example of aircraft components,
  • the inventive crane does not require external power or hydraulics (although these can be incorporated if desired).
  • the crane is manually operated, towable, air transportable and mounted on locking casters.
  • the invention herein is readily operational in virtually any ambient environment (sea or land) and provides for utilization in hangers, on platforms, tarmacs and runways, as well as TAB VEE first, second and third generation aircraft shelters.
  • the invention is useful in operations involving a wide range of vehicles and particularly in the field of aircraft maintenance.
  • the invention provides for angular adjustment in both the vertical and horizontal dimensions ranging from full extension to a fully collapsed towable and easily stored structure. Consequently, the invention is readily adapted for storage in minimal space but quickly configured to service even aircraft with low ground clearance in a manner that there is no need to remove external stores, pods or fuel tanks (both outboard and centerline types).
  • the invention herein provides for enhanced system reliability and maintainability while simultaneously minimizing risk of injury to maintenance personnel. Controls and indicators offer the operator an efficient crane for all aspects of maintenance. Additionally, the invention herein, when used properly, reduces the risk of damage to aircraft or other structures structure during maintenance functions.
  • the invention design contemplates provision of both a versatile crane platform and human engineering to provide maximum safety and ease of operation. Furthermore the invention herein embodies a design to comply with aircraft interface requirements to perform maintenance tasks while providing sufficient clearance to preclude contact with aircraft, systems, and support structures.
  • the invention provides a mechanically actuated, collapsible, portable crane capable of full rotation through 360°, mobility, transportability, and towability. Furthermore, the simplicity of its mechanical structure and actuation, coupled with the collapsibility and articulablity of the legs, allows the invention to provide for customizable disposition (to adapt to space limitations), accessibility, and serviceability heretofore unknown.
  • the inventive crane herein provides a system that exceeds even the most demanding operational requirements.
  • FIG. 1 is a side view of an extended mobile crane/ maintenance stand, according to the present invention.
  • FIG. 2 is side view of the crane/ maintenance stand depicted in FIG. 1 in a partially collapsed position.
  • FIG. 3 is side view of the crane/ maintenance stand depicted in FIG. 1 in a fully collapsed position.
  • FIG. 4 is a top view of the invention showing the crane in a towing position and the articulatable outriggers being pivotably mounted to the crane support platform plate.
  • FIG. 5 is a top view of the invention illustrating the pivotability of the outriggers relative to one another to provide for adequate stabilization of the inventive crane.
  • FIG. 6 illustrates the towing position of the outriggers and an associated outrigger towbar.
  • FIG. 1 there is shown a floor crane 10 according to the invention, which, from the ground up includes casters 12, forward outriggers 14 and rear outrigger legs 16, a forwardly disposed tow bar 18, a crane supporting rotation bearing and plate 20, a pivotally mounted mast 22, connected to both the rotary bearing 20 and to a removable support brace 24, used when the mast is in its extended/vertical position.
  • the top of the mast is connected to a boom assembly 26 which is formed by a pair of triangulating, projecting lower boom legs 28 pivotally connected to the mast 22 via a pivot connection 30.
  • the pivot connection 30 includes a pin about which the boom and mast relatively rotate.
  • Two oppositely projecting short triangulating boom connectors 32 are also pivotally connected to the top of the mast 22 and converge to fixedly connect to the upper boom support arm 34 at a winch pulley assembly 36 established at the end of the support arm 34.
  • a winch pulley assembly 36 established at the end of the support arm 34.
  • the winch pulley support assembly features a cable receiving pulley (not illustrated) and a support cable attachment element 40 for securing support cable 42 to the pulley assembly 36 at the upper end and a tension adjustable support cable member 44 secured to the bearing plate 20 which ideally is disposed precisely vertically below the element 40.
  • the hand-crank actuated winch assembly 46 which, upon operation translates the cable 48 relative to the pulley assemblies 36 and 38 to raise and lower the weighted snatch block assembly 50.
  • the crane 10 illustrated in Figure 1 has a preferred height of 20 feet when extended, a preferred height of 17 feet when retracted and when fully retracted (see figure 3) a preferred height of 7 1/2 feet.
  • the crane 10 when the outriggers are extended, the crane 10 has a preferred length of 18 feet and a preferred width of 12 feet. When retracted the width of the crane is preferably as narrow as 5 feet. In a service and air transport configuration the crane 10 has a weight of 2500 pounds.
  • FIGs 2 and 3 represent the crane 10 in various states of folding.
  • tension has been released on the winch cable 48 and the support cable 42 has been released from pulley guide 36.
  • the boom assembly 24 has been pivoted about pivot 30 so that upper boom support arm 34 is resting in the vertical position against the mast 22.
  • Figure 3 represents the final position of the crane components at the conclusion of the folding operation.
  • the support brace 24 has been released from the mast 22 and both the mast 22 and the boom assembly 2 rotated about the mounting on the platform 20 until the mast and upper support arm come to rest on the interior outriggers 16.
  • the crane casters 12 are made from urethane casters (FOD Resistant) and have a tread width of 2 inches.
  • the casters 12 incorporate conventional swivel locks and manually operated foot brakes to provide ease of maneuverability and tracking during transport and crane deployment.
  • the casters 12, may be associated with autolocking swivel wheels and when locked/braked, provide a stable, motionless base during crane manipulation which is particularly important during aircraft component removal/installation.
  • the swivel locks are released to permit free rotation of the casters 12 to facilitate towing and maneuvering
  • the crane 10 includes outrigger assemblies designated 14
  • each outrigger is about 15 inches above ground level and the outriggers are pivotable and extendable relative to the base plate 20 to present a footprint of up to 22 feet (7 m).
  • detent pins are provided to obtain a tactile, positive stop when deploying or retracting the four outriggers 14 and 16.
  • Each outrigger optionally can include conventional screw jacks that can provide for fine height adjustment to establish a solid crane platform during usage.
  • each screw jack represents a hand operated screw mechanism, which provides up to nine inches (23cm) travel for leveling and supporting the base assembly. Screw jacks are stowed in mounted brackets on the crane base when not in use.
  • the positioning of outriggers 14 and 16 may be adjusted as desired. Accordingly, crane 10 may be stabilized as the boom assembly 26 is rotated through an angle of 360°, even under full load conditions.
  • the crane 10 may employ a low profile outrigger with a ground clearance of 11 inches.
  • Such outriggers are particularly useful in low ground clearance areas of an aircraft to enable normal usage without compromising safety; e.g., where centerline ground clearance for external stores or tanks is limited.
  • the use of low profile outriggers eliminates the need to drain and/or remove external tanks, pods or stores in order to service the aircraft with the crane, saving considerable man-hours and aircraft downtime involved in the preparation, removal and reinstallation of aircraft components not directly involved in specific maintenance cycles.
  • the rotation bearing 20 includes a gear driven turret bearing.
  • turret bearing structure described in U.S. Patent No. 4,597,498 may be employed to permit the crane 10 to be rotated 360° on the vertical axis under full load eliminating the need to move the crane during removal or installation of aircraft components and a stationary base plate 21 to which outriggers 14 and 16 are attached.
  • hand wheels may be provided for operation on either side of the thereby allowing for full use even in congested areas as well as dispensing with the need for personnel to circumnavigate the crane 10 during hoisting operation
  • the boom assembly 26 embodies a multi-piece 140-inch long welded extension arm formed by members 28, 32, and 34 pivotally affixed to the mast 22 by pivot pin assembly 30.
  • the boom assembly 26 also features two, terminal, oppositely disposed, guide pulley assemblies 36 and 38. These assemblies preferably incorporate cable protectors to prevent the cable 48 from rolling off the pulleys during hoisting or rotation of the boom when either loaded or unloaded. Due to its length and rotatablity, the boom assembly 26 permits access to otherwise difficult aircraft components during maintenance cycles and allows for greater clearance of work stands and platforms.
  • the crane operation is based on a hand cranked, mechanical actuation system that includes the winch assembly 46 mounted on the upper surface of the rotation bearing plate 20.
  • the winch 46 incorporates a two (2) speed drive mechanism of a type familiar to the skilled artisan.
  • the two speed drive mechanism may have a 16/1 ratio for hoisting and 4/1 ratio for rapid cable extension and rewind. This physical arrangement provides the operator with full visual access during usage.
  • the rotation, and boom extension controls of the crane 10 are designed for ease of operation and precision hoisting by even one person. As a totally mechanical hoisting system, it is independent of any electric or hydraulic power source thereby enabling the use of the Floor Crane in remote locations without available power sources, as well as in hangars.
  • the Crane requires minimum setup time without any support equipment, and is easily maneuvered in congested areas.
  • the winch assembly 46 is rated at 6000 pounds load capacity when using a using a 3/8-inch diameter cable 48.
  • the weighted snatch block 50 Disposed at the end of the cable 48 is the weighted snatch block 50 that preferably includes with a spring-loaded snap hook to maintain cable tension at all times.
  • the snatch block 50 includes a scuff resistant protective cover.
  • the disclosed crane/hoisting system in summary provides for rapid and independent operation, which is totally mechanical, thereby avoiding the use of hydraulics and power sources.
  • the system maximizes maneuverability during transport, set-up and use. While including a winch having a load rating capacity of 6000 pounds (3 tons), the inventive crane/hoist has maximum versatility by providing a variable working height ranging between 16- 20 feet (5-6m) while simultaneously providing for 360° rotation about the vertical axis even under load weighing up to 3,500 pounds while at its full operational height of 20 feet.
  • the incorporation of the towbar 18 permits the crane 10 to be towed up to 5 mph
  • the inventive crane 10 therefore, constitutes an excellent and safe maintenance system to assist in the removal and installation of aircraft components in a hanger on a tarmac or shipboard, tow bar having a lunette eye conforming to MS51336, which is attached to an outrigger assembly for towing.
  • the casters 12 may be associated with an optional braking assembly. More specifically, if desired, the caster 12 associated with the towbar permit automatic braking when the towbar is placed in a down position. See ghost lines in figures 1 and 3). This lockdown feature can be extremely useful when the crane 10 is located at sea.
  • each of the outriggers is pivotally mounted to the underside of the rotatable bearing platform 20 via pivot assemblies 52 and preferably are aligned along a common chord. Furthermore, each of the outriggers, itself, is articulated. Each outrigger includes a short leg section 54 pivotally mounted to the platform 20 and articulately joined to a loner leg section 56 at pivot 58. This mounting arrangement provides for maximum positioning flexibility to insure stability even when the crane 10 is used in very confined premises to manipulate items weighing over a ton.
  • the collapsibility of the crane permits the crane to folded into a compact easily transported form (See Figure 3), even by air.
  • the present invention is particularly useful for performing aircraft maintenance and repair functions.
  • the present invention may be manually operated and may be used in all type of environments, i.e. on land or aboard ship. Removal and installation of aircraft components such as canopies, ejection seats, ammunition drums, leading edge flap drives, vertical and horizontal stabilizers, wing and wing components, rapport ECM generators, flight control surfaces, rotorblades and rotor transmissions, are easily achieved by the present invention.
  • the present invention may be utilized for maintenance, installation and removal of components to and from land and marine vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

Grue (10) d'entretien mobile améliorée, totalement mécanisée, actionnée par une manivelle, portable, repliable, pouvant être transportée par air et incorporant des longerons articulés (14, 16) montés pivotants sur une plaque remorquable sous forme de plate-forme rotative (20) supportant un ensemble flèche (26) de levage allongé, réglable en hauteur, rotatif à 360 degrés qui présente une capacité de poids importante particulièrement appropriée pour l'entretien d'aéronefs.
PCT/US1999/015646 1998-07-10 1999-07-12 Grue terrestre comportant une fleche rotative WO2000002809A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48698/99A AU4869899A (en) 1998-07-10 1999-07-12 Floor crane with rotatable boom

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9246898P 1998-07-10 1998-07-10
US60/092,468 1998-07-10

Publications (1)

Publication Number Publication Date
WO2000002809A1 true WO2000002809A1 (fr) 2000-01-20

Family

ID=22233366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/015646 WO2000002809A1 (fr) 1998-07-10 1999-07-12 Grue terrestre comportant une fleche rotative

Country Status (2)

Country Link
AU (1) AU4869899A (fr)
WO (1) WO2000002809A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007144803A1 (fr) * 2006-06-14 2007-12-21 S.I.A. Societa Idee Avioniche S.R.L. Unité modulaire portable permettant de laver des batteries d'aéronef
US10457748B2 (en) 2012-12-21 2019-10-29 Ucb Biopharma Sprl Single linker FabFv antibodies and methods of producing same
CN110615372A (zh) * 2019-09-29 2019-12-27 武汉港迪电气传动技术有限公司 一种可调式移动起吊装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200274A (en) * 1938-11-26 1940-05-14 Hayes Hal Portable crane
US2378605A (en) * 1942-02-07 1945-06-19 Bird White Corp Portable hoist
US2394217A (en) * 1944-01-22 1946-02-05 John E Tom Portable crane
US2804979A (en) * 1954-11-19 1957-09-03 Harmon D Lassiter Portable lifting apparatus
US4050587A (en) * 1976-08-16 1977-09-27 Moen George A Hoist and dolly apparatus
US4150754A (en) * 1977-05-23 1979-04-24 Ami Industries, Inc. Utility crane

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200274A (en) * 1938-11-26 1940-05-14 Hayes Hal Portable crane
US2378605A (en) * 1942-02-07 1945-06-19 Bird White Corp Portable hoist
US2394217A (en) * 1944-01-22 1946-02-05 John E Tom Portable crane
US2804979A (en) * 1954-11-19 1957-09-03 Harmon D Lassiter Portable lifting apparatus
US4050587A (en) * 1976-08-16 1977-09-27 Moen George A Hoist and dolly apparatus
US4150754A (en) * 1977-05-23 1979-04-24 Ami Industries, Inc. Utility crane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007144803A1 (fr) * 2006-06-14 2007-12-21 S.I.A. Societa Idee Avioniche S.R.L. Unité modulaire portable permettant de laver des batteries d'aéronef
US10457748B2 (en) 2012-12-21 2019-10-29 Ucb Biopharma Sprl Single linker FabFv antibodies and methods of producing same
CN110615372A (zh) * 2019-09-29 2019-12-27 武汉港迪电气传动技术有限公司 一种可调式移动起吊装置
CN110615372B (zh) * 2019-09-29 2024-05-14 武汉港迪技术股份有限公司 一种可调式移动起吊装置

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Publication number Publication date
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