WO2010047754A2 - Raccord rotatif pour machine de levage - Google Patents

Raccord rotatif pour machine de levage Download PDF

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Publication number
WO2010047754A2
WO2010047754A2 PCT/US2009/005665 US2009005665W WO2010047754A2 WO 2010047754 A2 WO2010047754 A2 WO 2010047754A2 US 2009005665 W US2009005665 W US 2009005665W WO 2010047754 A2 WO2010047754 A2 WO 2010047754A2
Authority
WO
WIPO (PCT)
Prior art keywords
pair
lifting machine
housing
rotational connector
gear train
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/US2009/005665
Other languages
English (en)
Other versions
WO2010047754A3 (fr
Inventor
James A. Moffitt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2010047754A2 publication Critical patent/WO2010047754A2/fr
Publication of WO2010047754A3 publication Critical patent/WO2010047754A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/125—Platforms; Forks; Other load supporting or gripping members rotatable about a longitudinal axis
    • 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
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B66F9/183—Coplanar side clamps
    • 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
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B66F9/184—Roll clamps

Definitions

  • the present invention relates to attachments for lifting machines, such as skid steers, front end loaders, forklifts, tractors or the like, and more particularly, to a rotational connector for a lifting machine that provides a coupler permitting rotation of any conventional attachment that would otherwise be directly attached to the machine.
  • the rotational connector for a lifting machine is a connector that is releasably mounted on the front end of a vehicle or lifting machine, such as a skid steer loader, a forklift or the like.
  • the connector allows an auxiliary lifting apparatus, such as a pair of gripping arms, to be mounted to the vehicle, and further allows for the selective, driven rotation of the auxiliary lifting apparatus.
  • the rotational connector includes a mounting portion, which is releasably mounted to the front end of the vehicle.
  • the mounting portion includes a housing, which defines an open interior region.
  • the housing is releasably secured to the front end of the vehicle through the use of a "quick pin” or “quick attach” connector, as is conventionally provided on lifting machines, such as skid steer loaders, forklifts and the like.
  • At least one hydraulic piston is mounted within the open interior region of the housing for selectively driving rotation of a first gear, which is also rotatably mounted within the open interior region of the housing.
  • a rotating mount is rotatably attached to the housing, and a second gear is mounted on the rotating mount and is positioned within the open interior region of the housing. The second gear engages the first gear so that driven rotation of the first gear causes the second gear to rotate, and rotation of the second gear causes the rotating mount to rotate.
  • a rotating support is attached to the rotating mount, and selective rotation of the rotating support is driven by rotation of the rotating mount.
  • the rotating support includes a quick pin or quick attach connector for releasably attaching the auxiliary lifting apparatus thereto.
  • Fig. 1 is an environmental, perspective view of a rotational connector for a lifting machine according to the present invention, shown without a lifting attachment.
  • Fig. 2 is an environmental perspective view of the rotational connector for a lifting machine of Fig. 1 , shown with a pair of gripping arms attached to the rotational connector.
  • Fig. 3 is a partially exploded, perspective view of the rotational connector for a lifting machine according to the present invention, shown with the cover attached to the gear train housing.
  • Fig. 4 is a rear, perspective view of a rotating support of the rotational connector for a lifting machine according to the present invention.
  • Fig. 5 is a rear perspective view of the gear train housing of the rotational connector for a lifting machine according to the present invention.
  • Fig. 6 is a front view of the rotating support of the rotational connector for a lifting machine according to the present invention.
  • Fig. 7 is a front view of the gear train housing of the rotational connector for a lifting machine according to the present invention, shown with the covers removed and the cruciform support frame partially broken away to show details thereof.
  • Fig. 8 is a front perspective view of an alternative rotating support of the rotational connector for a lifting machine according to the present invention.
  • Fig. 9 is a perspective view of adjustable gripping arms for the alternative rotating support of Fig. 8, shown with vertical grapple arms.
  • Fig. 10 is a perspective view of adjustable gripping arms for the alternative rotating support of Fig. 8, shown with linear gripping arms.
  • the rotational connector for a lifting machine 10 is a coupler that is releasably mounted on the front end of a lifting machine V, such as a bobcat, a skid steer loader, a forklift or the like.
  • the rotational connector 10 allows a conventional loader attachment or other auxiliary lifting apparatus, such as exemplary gripping arms A, to be mounted to the machine V, and further allows for the selective, driven rotation of the auxiliary lifting apparatus. It should be understood that lifting machine V and gripping arms A are shown for exemplary purposes only.
  • the rotational connector 10 includes a mounting portion 12, which is releasably mounted to the front end of the machine V (as shown in Figs. 1 and 2).
  • the mounting portion 12 includes a gear train housing 16, which defines an open interior region (as shown in Fig. 7). It should be understood that the dimensions and configuration of housing 16 will be dependent upon the particular type of machine to which the housing 16 is being attached.
  • Housing 16 includes a pair of longitudinally opposed sidewalls 18, an upper wall 26 and a lower wall 52 (shown in Fig. 5).
  • a plurality of hydraulic lines H extending from a control system mounted within machine V, are connected to the rotational connector 10 via hydraulic connectors C, which are received within ports 22.
  • the hydraulic drive will be described in detail below, with particular reference to Fig. 7.
  • housing 16 The front portion of housing 16 (shown in Fig. 7) is covered by cover 18 (which may be provided in multiple portions, as shown) in order to protect the hydraulic drive from external contaminants.
  • the rear of housing 16 includes a rear frame defined by rear wall 58, an upper frame member 54, a pair of longitudinally opposed side frame members 50, and lower wall 52.
  • Lower wall 52 includes a plurality of openings 56, as shown, that allow housing 16 to be releasably attached to the front end of the machine V through the use of a "quick pin" or "quick attach” connector, as is conventionally provided on lifting machines, such as skid steer loaders, forklifts and the like.
  • housing 16 may be releasably secured to machine V by any suitable type of connector or mount.
  • At least one hydraulic cylinder 70 is mounted within the open interior region of the gear train housing 16 for selectively driving rotation of a first or drive gear 64, which is mounted within the open interior region of the housing 16, as shown.
  • Each hydraulic cylinder 70 has a base pivotally attached to rear wall 58 by a pivot pin 76 or the like.
  • Each hydraulic cylinder 70 has a base pivotally attached to rear wall 58 by a pivot pin 76 or the like.
  • Each hydraulic cylinder 70 has a base pivotally attached to rear wall 58 by a pivot pin 76 or the like.
  • the 70 includes a piston 72, which is pivotally attached at 74 to the first gear 64 by a universal joint, ball and socket joint, or the like. As shown, the piston 72 of the upper hydraulic cylinder 70 is pivotally attached to the upper portion of drive gear 64 and the piston 72 of the lower hydraulic cylinder 70 is pivotally attached to the lower portion of drive gear 64.
  • Hydraulic lines H and connectors C are in fluid communication with hydraulic cylinders 70, allowing the user to selectively actuate the hydraulic cylinders 70.
  • drive gear 64 which extends from rear wall 58 and is attached at the other end to a support frame 60, as shown
  • one piston 72 is driven to extend while the other is simultaneously retracted, and vice versa to change the direction of rotation.
  • a second, central shaft 68 is rotatably mounted to rear wall 58 and is rotatably journalled at the other end to support frame 60, as shown.
  • Cruciform support frame 60 extends across the housing 16, as shown, partially covering the front end of the housing 16.
  • a second or driven gear 66 is mounted on second axle 68 for rotation therewith.
  • the driven gear 66 is disposed between support frame 60 and rear wall 58.
  • the driven gear 66 meshes with the drive gear 64 forming a gear train.
  • a rotating mount 24 (shown as a disk or wheel in Fig. 7) is fixed on shaft 68, as shown. Rotation of the drive gear 64 by extension and retraction of upper and lower pistons
  • the rotating mount 24 is positioned external to housing 16 and projects beyond cover 18.
  • a rotating support 14 is fixed to the rotating mount 24 by suitable fasteners.
  • a plurality of apertures 38 may be formed through a central member 32 of rotating support 14, corresponding to a plurality of apertures 34 formed through rotating mount 24.
  • a plurality of bolts 30 or the like may pass through apertures 38 and 34 to secure the rotating support 14 to the rotating mount 24.
  • Selective rotation of the rotating support 14 is driven by rotation of the rotating mount 24. It should be understood that the dimensions and configuration of rotating support 14 may depend upon the particular type of auxiliary apparatus being mounted on the machine V.
  • the rotating support 14 includes a pair of front walls (or split front wall) 42, an upper wall 46, a lower wall 45 and a pair of sidewalls 36.
  • the front walls 42 are spaced apart from the central member 32, as shown.
  • a pair of L-shaped levers 40 are respectively, pivotally mounted to the front walls 42 by pivot pins 44 or the like.
  • Each lever 40 is attached to a sliding arm 80, which is attached to a pin 82, as shown in Fig. 6. Rotation of each lever 40 permits raising and lowering of the corresponding pin 82.
  • Pins 82 are provided so that rotating support 14 may be releasably secured to the auxiliary lifting apparatus via a quick pin or quick attach type connector.
  • the quick pin or quick attach connector allows the rotational connector 10 to be easily mounted to the front end of any conventional vehicle or lifting machine.
  • the quick pin or quick attach connectors (via pins 82) on the rotating support 14 further allow for the mounting of any suitable auxiliary apparatus, such as the exemplary gripping arms A, to the rotational connector 10.
  • hydraulic cylinders 70 Under control of the user (via controls within the machine V), hydraulic cylinders 70 are actuated to drive translational movement of pistons 72.
  • the translational movement of pistons 72 causes drive gear 64 to rotate, either clockwise or counterclockwise, about shaft 62.
  • This rotation causes driven gear 66 and shaft 68 to rotate in the opposite direction. Rotation of the driven gear 66 and shaft 68 produces rotation of rotating mount 24.
  • Rotating support 14 is attached to rotating mount 24 via bolts 30 or the like, and the auxiliary apparatus A is secured to rotating support 14 via quick connect pins 82, thus allowing the auxiliary apparatus A to be selectively rotated.
  • Rotational connector 10 allows for rotation in either direction approximately 98° from the vertical.
  • Figs. 8 and 9 illustrate an alternative embodiment of the rotational connector 100.
  • the rotating support 14 of Figs. 1-7 is replaced by a support 112 having a central portion 1 18 for attachment to the gear train housing 16 of the mounting portion of Figs. 1-7.
  • the support 1 12 is adapted for connection to the gear train housing 16, as described above, or, alternatively, for releasable mounting on the front of the machine V.
  • the support 1 12 includes an upper portion and a lower portion.
  • the lower portion includes a base 1 14, a pair of sidewalls 1 16, an upper frame member 126, with the central portion 1 18 (for attachment to the gear train housing 16) disposed between the base 1 14 and upper frame member 126.
  • the particular size and shape of mounting portion 112 depends upon the type of machine to which the arms are to be attached.
  • the upper portion of support 112 preferably includes at least one vertical support 132 mounted on the upper frame member 126 for supporting an upper bar 134. Further, a pair of brackets 122 are each mounted to a respective one of a pair of longitudinally opposed surfaces of sidewalls 1 16 and extend outwardly therefrom.
  • the support 1 12 may further include upper and lower mounting tubes 133, 137, respectively, depending upon the particular type of machine V to which the support 112 is attached.
  • each hydraulic piston 138 has opposed first and second ends.
  • the first end (preferably the cylinder) of each hydraulic piston 138 is pivotally attached to a respective one of the pair of brackets 122.
  • Each bracket 122 has openings 124 formed therethrough for receiving a pivot pin 144 or the like for pivotally attaching the first end of the hydraulic piston 138 to the respective bracket 122.
  • a pair of linear gripping arms 110 for gripping poles or the like, are provided, with each gripping arm 110 having an upper end, a lower end and a central portion.
  • the second ends (preferably the piston or rod) of the pair of hydraulic pistons 138 are each pivotally attached to a respective central portion of a respective one of the pair of gripping arms 110.
  • the upper ends of the pair of gripping arms each have an upper mounting portion 156, so that the upper mounting portions 156 are releasably and pivotally attached to upper bar 134 of the upper portion of the support 112.
  • the lower ends of the pair of gripping arms 110 each have lower mounting portions 111, with the lower mounting portions 111 being releasably pivotally attached to the base 114 of the lower portion of the support 112.
  • a plurality of upper openings 136 are formed through the upper bar 134 of the upper portion of the support 1 12, and a plurality of lower openings 120 are formed through the base 114 of the lower portion thereof.
  • the pluralities of upper and lower openings 136, 120, respectively, are arrayed along the longitudinal direction, as shown.
  • a pair of removable upper pivot pins 158 or the like, and a pair of removable lower pivot pins 160 or the like are provided so that the pair of removable upper pivot pins 158 are releasably and removably inserted through a respective pair of the upper openings 136 and a pair of openings formed through the rear mounts 156.
  • the pair of removable lower pivot pins 160 are releasably and removably inserted through a respective pair of openings formed through the lower mounting portions 111 of the pair of gripping arms 110 and a selected pair of the plurality of lower openings 120.
  • Lifting machines such as skid steer loaders, forklifts and the like are conventionally provided with auxiliary hydraulic controls.
  • the hydraulic cylinders 138 are attached to the auxiliary hydraulic inputs of the machine V, allowing the operator of the machine V to selectively actuate the hydraulic cylinders 138 to open and close the gripping arms 1 10 about the object to be lifted or moved. As best shown in Fig.
  • each gripping arm 1 10 includes a laterally extending upper strut 154 attached to the upper mounting portion 156 and extending forwardly therefrom, along with a laterally extending lower strut 150 attached to the lower mounting portion 1 1 1 and extending forwardly therefrom.
  • Each gripping arm 1 10 further includes a pair of a vertically extending supports 152 joined to laterally opposed ends of the laterally extending upper strut and the laterally extending lower strut 154, 150 and extending therebetween.
  • Each gripping arm 110 further includes a laterally extending bracket 148 attached to, and extending between, central portions of the pair of vertically extending supports 152, with each second end of the pair of hydraulic pistons 138 being pi vo tally attached to a respective one of the laterally extending brackets 148 by a pivot pin 146 or the like.
  • Each gripping arm 1 10 further includes an upper clamping member 164 attached to an inner surface of the laterally extending upper strut 154 and a lower clamping member 162 attached to an inner surface of the laterally extending lower strut 150.
  • the clamping members 164, 162 are formed from a resilient material, such as plastic, having a high coefficient of friction for gripping the object without causing damage from pressure thereto.
  • the pole clamp gripping arms of Fig. 10 are replaced by a pair of vertical grapple gripping arms 200, each gripping arm 200 having a laterally extending upper strut
  • each of the laterally extending upper, lower and central struts 175, 177, 174 is substantially arcuate, so that the pair of gripping arms 200 are adapted for releasably grasping a substantially cylindrical object therebetween.
  • Each gripping arm 200 further includes a plurality of a vertically extending supports
  • Each second end (preferably the piston or rod) of the pair of hydraulic pistons 138 is pivotally attached between a respective adjacent pair of the laterally extending central struts 174 by a pivot pin 178 or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne un raccord rotatif destiné à un engin de levage (10), en l'occurrence un raccord qui se monte libérable sur l'extrémité avant d'un engin de levage (V), tel qu'un chargeur à direction à glissement. Ce raccord (10), qui permet de monter sur l'engin (V) un appareil de levage auxiliaire (A), fait tourner de façon sélective l'appareil de levage auxiliaire (A). Le raccord rotatif (10) comporte un logement (12) qui se fixe libérable sur l'extrémité avant de l'engin (V). Au moins un piston hydraulique (70) est monté à l'intérieur du logement (12) de façon à entraîner sélectivement la rotation d'un adaptateur de montage rotatif (24). Un support rotatif (14) est fixé au support rotatif (24), la rotation sélective du support rotatif (24) étant entraînée par la rotation de l'adaptateur de montage rotatif (24). Le support rotatif (24) comporte un connecteur rapide à broche ou un connecteur à fixation rapide permettant d'y fixer l'appareil de levage auxiliaire (A).
PCT/US2009/005665 2008-10-20 2009-10-19 Raccord rotatif pour machine de levage Ceased WO2010047754A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13698708P 2008-10-20 2008-10-20
US61/136,987 2008-10-20

Publications (2)

Publication Number Publication Date
WO2010047754A2 true WO2010047754A2 (fr) 2010-04-29
WO2010047754A3 WO2010047754A3 (fr) 2010-07-22

Family

ID=42119876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/005665 Ceased WO2010047754A2 (fr) 2008-10-20 2009-10-19 Raccord rotatif pour machine de levage

Country Status (1)

Country Link
WO (1) WO2010047754A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103043567A (zh) * 2012-12-26 2013-04-17 江南大学 一种液压式三向旋转工作门架
WO2021219834A1 (fr) * 2020-04-30 2021-11-04 Thomas Jansen Dispositif d'entraînement de rotateur
US20220349148A1 (en) * 2021-05-03 2022-11-03 Deere & Company Tilt bucket

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688982A (en) * 1986-08-01 1987-08-25 Smart Robert L Motorized operator unit for manually adjustable fork mechanism
US6585079B1 (en) * 1999-12-14 2003-07-01 1994 Weyer Family Limited Partnership Work platform with rotary actuator
US7993094B2 (en) * 2004-06-21 2011-08-09 Tygard Machine & Manufacturing Company Lift truck

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103043567A (zh) * 2012-12-26 2013-04-17 江南大学 一种液压式三向旋转工作门架
WO2021219834A1 (fr) * 2020-04-30 2021-11-04 Thomas Jansen Dispositif d'entraînement de rotateur
LU101771B1 (de) * 2020-04-30 2021-11-04 Thomas Jansen Rotatorantrieb
US20220349148A1 (en) * 2021-05-03 2022-11-03 Deere & Company Tilt bucket
US12049741B2 (en) * 2021-05-03 2024-07-30 Deere & Company Tilt bucket

Also Published As

Publication number Publication date
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