WO2018104773A1 - Système de levage motorisé hybride - Google Patents

Système de levage motorisé hybride Download PDF

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Publication number
WO2018104773A1
WO2018104773A1 PCT/IB2017/001519 IB2017001519W WO2018104773A1 WO 2018104773 A1 WO2018104773 A1 WO 2018104773A1 IB 2017001519 W IB2017001519 W IB 2017001519W WO 2018104773 A1 WO2018104773 A1 WO 2018104773A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
assembly
previous
lifting system
pump piston
Prior art date
Application number
PCT/IB2017/001519
Other languages
English (en)
Inventor
Gregory James Newell
Original Assignee
Gregory James Newell
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 Gregory James Newell filed Critical Gregory James Newell
Publication of WO2018104773A1 publication Critical patent/WO2018104773A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0618—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground using fluid lifting mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0606—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground manually operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0612—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground power operated
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks

Definitions

  • the present application relates to a system for adding powered lift to an otherwise manually actuated hydraulic jack, such as common pallet jacks, providing a hybrid combination of both systems that can be applied, either manual or powered lifting.
  • a typical jack includes a hydraulic jacking system that supports a frame carrying a pair of forwardly extending forks or other adaptation.
  • the lifting mechanism includes a lift cylinder with an upward pushing lifting rod that connect directly and or through linkages to the frame plus a pump cylinder for providing pressurized hydraulic fluid to the lift cylinder.
  • powered pallet moving devices such powered pallet jacks are generally referred to as “walkies” as you walk behind them, vs. “riders” that have a platform to stand on and fork trucks that are typically sit-down units.
  • Some such machines are offered with powered hydraulic lifting and some are offered with conventional manual hydraulic lifting.
  • An advantage of the present invention is that it offers both manual and powered lifting in one compact and low-cost device. It allows a contingency solution of manual jacking if the powered system is inoperable (such as if the battery pack is depleted or due to electrical or electro-mechanical failure). Also, as it is not a new lifting system but attaches to an existing manual pumping system, it is therefore retrofittable to a manual jack that did not originally have a powered lifting system.
  • Figure 1 is a is a perspective view of a conventional manual jack 10 with the lower portion of the jack handle 80 in a vertical orientation.
  • the manual jack's chassis 70 is shown in addition to the hydraulic jacking system 20.
  • Figure 2 is the same view of Figure 1 but with the jack handle 80 pivoted down, to simulate the act of pumping, to jack up the pallet jack frame 70. Visible is the hydraulic jacking system 20 comprising the hydraulic pump 30 and hydraulic lift 50.
  • Figure 3 shows the same manual jack 10 of figure 1 but after it has had the hybrid powered lifting system 100 installed into it.
  • the throttle 170 is shown, added to the top of the handle where the operator can activate various buttons and controls, including the activation of the lifting motor. Also visible nearby the handle throttle assembly is the lift release lever 86 of the original manual jack (10) which is still used to release the lift cylinder and lower the pallet jack frame when the load is to be put back on the ground.
  • the dashed curved line on Figure 3 represents the pumping action that can be made to the jack handle 80 by the operator even after it has been retrofitted with the hybrid powered lifting system.
  • Figures 3-4 also show one possible location for the containment of an energy source for the motor assembly 130, most typically a battery pack and most commonly removable and rechargeable. Adjoining the battery pack in this representation is the motor control ler that provides the power to the motor assembly 130 to operate the motor of the hybrid powered lifting system. Note that miscellaneous hardware such as wires, connectors etc. are not shown in the Figures for the sake of simplicity.
  • Figure 5 is a perspective view of a manual jack 10, shown fitted with a locomotive drive unit for powered moving of the unit.
  • the handle throttle assembly 170 can be used and further, the battery pack 182 and controller 184 of this drive unit can also be used to power the motor assembly 130 of the hybrid powered lifting system 100, helping to further reduce cost of the overall system.
  • Figure 6 shows a close up and partially sectioned view of the drive unit shown in Figure 5.
  • the removable battery pack 182 is shown along with the motor controller (which can be a multiple channel output motor controller to control both the drive motor and also the motor assembly
  • Figure 7 is a partially sectioned side view of the manual jack 10.
  • Many of the key components are identified, referenceable from the Glossary of Components at the end of this description. The purpose of this drawing is to illustrate the pivot of the jack handle 80 and how this works as a long lever for a cross shaft that is mounted in the handle assembly mount 88 to push down on the top of the pump piston 32.
  • Figure 8 conceptually illustrates the pumping concept as employed in the hydraulic jacking system 20 of a manual jack 10.
  • the components are identified by number. The process is very simply, although as this is prior art and well established prior art (more than 2 million manual jacks are built annually that use this system) there is no need to explain it in detail here.
  • Figure 9 conceptually illustrates an alternative way of engaging with the pump piston 32, being with the rotating camshaft assembly 120 that has a cam profile with the desired amplitude ... in this illustration the amplitude is shown as "A - B" in the attached image.
  • Figure 10 is a conceptual image showing the vertical travel of the pump piston 32 as the camshaft assembly 120 rotates. Each image left to right shows 90 degrees of clockwise rotation and the corresponding effect on the pump piston 32.
  • the rotational axis of the camshaft assembly 120 is the same for all stages shown. The rotational axis is described by the cross symbol in the center of the camshaft shown by the circular arrow. The offset of the cam profile changes the distance of the contact point between the camshaft and the pump piston 32.
  • the offset is pointed directly towards the lift piston causing the lift piston to be in the lowered position.
  • the next stage shows the camshaft offset rotated and pointed to the left allowing the lift piston to be in a partially depressed state.
  • the middle stage has the camshaft offset further rotated to point up allowing the piston to move to the up position.
  • the next stage has the camshaft offset further rotated and pointing to the right allowing the lift piston to be in a partially depressed state.
  • the left most stage has the offset rotated in the down position causing the lift piston to be in the lowered position.
  • Figure 11 shows a closer view of Figure 3, partially sectioned to show the motor assembly 130, camshaft assembly 120 and chain drive power transmission 140, all mounted into the drive and camshaft assembly mount 110 of the jack handle 80.
  • Figure 12 shows the main components of the present invention exploded, being the manual jack 10, the jack handle 80 with a handle throttle assembly 170 and a battery pack with motor controller 180.
  • Figure 13 shows one alternative drive approach, being to have one or more externally located motors or motor gearboxes and in this case to drive the camshaft through a right-angle gearbox that connects directly to the camshaft axle 122 of the camshaft assembly 120.
  • Figure 14 shows another alternative drive approach, being to have a hub motor 134 or hub motor gearbox 135 that gear drives the camshaft assembly 120.
  • Figures 15-18 show another alternative drive approach, being to have a hub motor 134 or hub motor gearbox 135 that has the cam profile mounted about its own perimeter and then engages with a bearing or other low friction material that is directly mounted to the pump piston 32. Additional linkages are shown in these images that are related to ensuring the bearing maintains contact with the pump piston 32 as the handle lever is pumped.
  • Figures 19-20 show an adjacent motor 132 or adjacent motor gearbox 133 that connects via a chain and sprockets or belt and pulleys drive transmission 140 to rotate the camshaft assembly 120.
  • Figure 21 is a perspective view of the preferred hybrid powered lifting system, including an adjacent motor 132 (in this case without gearbox, but could also be with gearing) that drives the camshaft assembly 120 by chain and sprocket.
  • an adjacent motor 132 in this case without gearbox, but could also be with gearing that drives the camshaft assembly 120 by chain and sprocket.
  • Figure 22 is a sectioned view of the same assembly. The main reason for this view is to show the construction of the camshaft axle 122 on which is built a cam profile 124, supported on multiple bearings or bushings 126.
  • Figure 23 is an exploded view of the same camshaft assembly 120 to provide further clarification of this design. It should be noted however that this preferred embodiment and the other example embodiments in figures 13 through 20 are not an exhaustive list of means to achieve the same basic effect, being to have a motor assembly 130 drive a camshaft assembly 120 to engage a pump piston 32 and to be able to maintain contact as the jack handle is pivoted.
  • Figure 24 illustrates a sectioned perspective view of the hydraulic jacking system 20 of a manual jack 10
  • Figure 25 illustrates the same sectioned view for a hybrid powered lifting system 100 engaging with the same hydraulic jacking system 20 on a manual jack so fitted.
  • Figures 26-28 show side views of a manual pallet jack with the jack handle up and also pivoted down and the handle assembly sectioned.
  • Figures 29-31 show side views of a manual pallet jack fitted with the preferred embodiment of a hybrid powered lifting system 100 with the jack handle up and also pivoted down and the handle assembly sectioned.
  • Figures 32-33 shows in exploded view the components of a chain driven hub motor 134 design.
  • Figures 34-35 shows in exploded view the components of a directly connected externally mounted motor-gearbox 137 design.
  • Figures 36-37 illustrates side section views to show how the cam component works the same way as the connecting cross-tie on a manual jack 10 to engage with the pump piston 32 as the jack handle is pumped manually by the operator.
  • Figures 38-39 shows in exploded view the components of a gear driven hub motor 134 design.
  • Figures 40-41 illustrates side section views to show how the cam component works the same way as the connecting cross-tie on a manual jack 10 to engage with the pump piston 32 as the jack handle is pumped manually by the operator.
  • MOTOR CONTROLLER SINGLE OR MULTIPLE CHANNEL OUTPUT

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

La présente invention concerne un système d'entraînement motorisé qui peut être monté le long d'un système de levage hydraulique actionné manuellement, tel que celui d'un transpalette manuel. L'invention concerne également un système dans lequel un moteur entraîne un arbre à cames qui vient en prise avec le piston de pompe alternatif d'un vérin hydraulique, tel que dans un vérin de transpalette, qui pompe un fluide hydraulique dans le vérin de levage. Le système est approprié pour des applications dans lesquelles une option de levage motorisée compacte et à faible coût est souhaitée et est unique en ce que le système coexiste avec le système de levage manuel, fournissant à l'utilisateur un actionnement soit manuel soit motorisé du vérin de levage hydraulique.
PCT/IB2017/001519 2016-12-05 2017-12-05 Système de levage motorisé hybride WO2018104773A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662430338P 2016-12-05 2016-12-05
US62/430,338 2016-12-05

Publications (1)

Publication Number Publication Date
WO2018104773A1 true WO2018104773A1 (fr) 2018-06-14

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Family Applications (1)

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PCT/IB2017/001519 WO2018104773A1 (fr) 2016-12-05 2017-12-05 Système de levage motorisé hybride

Country Status (1)

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WO (1) WO2018104773A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109109939A (zh) * 2017-06-26 2019-01-01 丰田物料处理制造(瑞典)公司 托盘车
US11492031B2 (en) * 2017-08-28 2022-11-08 Pr Industrial S.R.L. Motorized transpallet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522583A (en) * 1994-10-28 1996-06-04 Martin; William A. Powered hydraulic jack
US20080173013A1 (en) * 2007-01-19 2008-07-24 Alltrade Tools Llc Screw style hydraulic jack
WO2010008326A1 (fr) * 2008-07-18 2010-01-21 Akromet Ab Chariot élévateur à fourche
WO2012122201A2 (fr) * 2011-03-10 2012-09-13 Dresser-Rand Company Poussoir hydraulique électronique et procédé associé
US20140299417A1 (en) * 2011-10-21 2014-10-09 Mobot Industries Limited Lifting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522583A (en) * 1994-10-28 1996-06-04 Martin; William A. Powered hydraulic jack
US20080173013A1 (en) * 2007-01-19 2008-07-24 Alltrade Tools Llc Screw style hydraulic jack
WO2010008326A1 (fr) * 2008-07-18 2010-01-21 Akromet Ab Chariot élévateur à fourche
WO2012122201A2 (fr) * 2011-03-10 2012-09-13 Dresser-Rand Company Poussoir hydraulique électronique et procédé associé
US20140299417A1 (en) * 2011-10-21 2014-10-09 Mobot Industries Limited Lifting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109109939A (zh) * 2017-06-26 2019-01-01 丰田物料处理制造(瑞典)公司 托盘车
US11492031B2 (en) * 2017-08-28 2022-11-08 Pr Industrial S.R.L. Motorized transpallet

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