Cable hoisting apparatus

• US 8,029,228 B2
• Filed: 09/11/2007
• Issued: 10/04/2011
• Est. Priority Date: 03/09/2007
• Status: Active Grant

• Current Assignee: Omaha Standard, LLC
• Original Assignee: Omaha Standard, Inc. (Palfinger AG)
• Inventors: Marmur, Lazar
• Primary Examiner(s): LOWE, MICHAEL S
• Application Number:
  US11/900,438
• Publication Number:
  US 20080219821A1
• Time in Patent Office: 1,484 Days
• Field of Search: 414/478, 414/494, 414/500, 414/538, 414/477, 280/400, 280/656, 280/405.1
• US Class Current: 414/478
• CPC Class Codes: B60P 1/6454 the load transporting element being shifted by means of an inclined ramp connected to the vehicle

Abstract

A cable hoisting apparatus for loading and unloading of containers with respect to vehicles including a modular assembly allowing the apparatus to be easily attached or detached with respect to the vehicle. This modular assembly includes a subframe directly attachable detachably to the vehicle which includes a reeve cylinder and a lifting cylinder mounted therewithin. A top frame is included which is pivotally movably mounted to the subframe. The lifting cylinder powers pivotal movement of the top frame. Loading and unloading of the container is powered by the reeve cylinder. The reeve cylinder moves a shoe within a shoe track which extends or contracts a cable attached to a container which is positioned about a plurality of sheaves one of which is attached to the slideable shoe. A positively engaging locking construction is included defined between the subframe and the top frame for positively retaining the container.

Claims

1. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle having a frame comprising:

a) a subframe means attachable fixedly directly to the frame of the roll-off vehicle;

b) a top frame means pivotally movably secured to said subframe means and defining an upper support surface for receiving of a container positioned thereupon;

c) a lifting means attached to said subframe means and said top frame means and being operative to move said top frame means between an lifted position vertically inclined with respect to said subframe means to facilitate loading and unloading of containers and a lowered position to facilitate transport of a container selectively attached with respect to the roll-off vehicle;

d) a container movement control means secured to said top frame means and attachable with respect to a container to facilitate moving of a container onto said upper support surface of said top frame means in a loaded position and to facilitate removing of a container from said upper support surface of said top frame means to an unloaded position; and

e) a container locking means for detachably securing a container with respect to said top frame means responsive to positioning of the container in the loaded position, the locking means adapted to engage the front roller means of the container to facilitate securing of the container with respect to said top frame means responsive to positioning of the container in the loaded position, said container locking means including;

1) a front hook means fixedly secured to said top frame means and adapted to engage the front roller means of a container for selective locking thereof with respect to said top frame means responsive to positioning of the container in the loaded position; and

2) a locking strut means secured to said subframe means and extending outwardly therefrom to a position generally adjacent said front hook means to prevent disengagement of the front roller means of a container from engagement with said front hook means responsive to positioning of a container in the loaded position, the locking strut means comprising a pair of locking struts having planar guide surfaces.

2. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said front hook means includes a C-shaped hook means facing rearwardly along said top frame means, said C-shaped hook means adapted to receive the front roller means of the container positioned therewithin for selectively locking the container in the loaded position.

3. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 2 wherein said locking strut means is positioned extending upwardly adjacent and across said C-shaped hook means to define therebetween a retaining zone means adapted to receive and hold the front roller means of a container therewithin responsive to positioning of a container in the loaded position.

4. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said locking strut means includes a guide surface extending outwardly away from said subframe means toward the position of said top frame means when located in said lifted position thereof to facilitating guiding of movement of said top frame means from said lifted position to said lowered position while maintaining proper alignment between said top frame means and said subframe means.

5. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said front hook means extends upwardly from said top frame means and wherein said locking strut means extends upwardly from said subframe means immediately adjacent to said front hook means to define selectively therebetween a retaining zone means which retains the front roller means of the container therewithin responsive to positioning of the container in the loaded position and is responsive to movement of the container toward the unloaded position to release the front roller means of a container therefrom to facilitate container unloading.

6. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said front hook means selectively locks the front roller means of a container therewithin to prevent movement up, down or longitudinally forwardly along the roll-off vehicle and wherein said locking strut means selectively locks the front roller means of a container thereadjacent to prevent movement longitudinally rearwardly along the roll-off vehicle.

7. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said lifting means comprises at least one lifting cylinder means attached to said subframe means and to said top frame means and being operative to be selectively extensible and retractable, said lifting cylinder means being operative when extended to move said top frame means upwardly toward said lifted position thereof and being operative responsive to retracting thereof to move said top frame means downwardly toward said lowered position.

8. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 7 wherein said lifting cylinder means comprises a first lifting cylinder and a second lifting cylinder extending generally parallel with respect to one another.

9. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said top frame means is substantially coplanar with respect to said sub frame means responsive to said top frame means being in the lowered position.

10. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 1 wherein said container movement control means comprises:

a) a cable means attached to said top frame means and attachable to the container to facilitate control of loading and unloading thereof with respect to said upper support surface of said top frame means;

b) a reeve cylinder means mounted to said top frame means and being operative to extend and retract said cable means for urging movement of a container between the loaded and unloaded positions.

11. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 10 wherein said container movement control means further includes a plurality of sheave means rotatably mounted with respect to said top frame means and being adapted to receive said cable means extending therearound to facilitate controlling and powering of movement of a container between the loaded and unloaded positions thereof.

12. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 11 wherein said container movement control means includes a shoe means movably mounted to said top frame means to be moveable longitudinally therealong, said reeve cylinder being attached to said shoe means and being operative to extend and retract said shoe means responsive to extension and retracting of said reeve cylinder means.

13. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 12 wherein said container movement control means includes a shoe sheave means rotatably movably mounted with respect to said shoe means and adapted to receive said cable means extending therearound to facilitate movement of a container between the loaded position and the unloaded position responsive to extension and retraction of said reeve cylinder means.

14. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 13 wherein said top frame means defines a shoe track therealong to facilitate longitudinal movement of said shoe means therealong.

15. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 13 wherein said shoe sheave means includes:

a) an upper shoe sheave groove extending peripherally therearound to facilitate containment of said cable means extending circumferentially therearound; and

b) a lower shoe sheave groove extending peripherally therearound to facilitate containment of said cable means extending circumferentially therearound.

16. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 15 wherein said container movement control means further includes a lower front sheave means rotatably mounted to said top frame means and an upper front sheave means rotatably mounted to said top frame means.

17. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 16 wherein said cable means is secured to said top frame means and extends rearwardly toward said shoe sheave means to extend around said lower shoe sheave groove thereof, said cable means then extending forwardly toward said lower front sheave means and therearound, said cable means then extending rearward toward said shoe sheave means and extending around said upper shoe sheave groove thereof, said cable means then extending forwardly to said upper front sheave means and therearound, said cable then being attached directly to a container to facilitate control of movement of a container between the unloaded and loaded positions thereof responsive to extension and retraction of said reeve cylinder means.

18. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 17 wherein said upper front sheave means is obliquely oriented extending through said top frame means to facilitate exiting of said cable means extending therearound above said top frame means to facilitate detachable securement thereof with respect to a container.

19. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle as defined in claim 10 wherein said reeve cylinder means is contained entirely within said top frame means.

20. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle comprising having a frame:

a) a subframe means attachable fixedly directly to the frame of the roll-off vehicle;

b) a top frame means pivotally movably secured to said subframe means and defining an upper support surface for receiving of a container positioned thereupon;

c) a lifting means attached to said subframe means and said top frame means and being operative to move said top frame means between an lifted position vertically inclined with respect to said subframe means to facilitate loading and unloading of containers and a lowered position to facilitate transport of a container selectively attached with respect to the roll-off vehicle, said lifting means comprising at least one lifting cylinder means attached to said subframe means and to said top frame means and being operative to be selectively extensible and retractable, said lifting cylinder means being operative when extended to move said top frame means toward said lifted position thereof and being operative responsive to retracting thereof to move said top frame means toward said lowered position, said lifting cylinder means being contained within said top frame means responsive to positioning of said top frame means in the lowered position, said top frame means being substantially coplanar with respect to said sub frame means responsive to said top frame means being in the lowered position;

d) a container movement control means secured to said top frame means and attachable with respect to the container to facilitate moving of a container onto said upper support surface of said top frame means in a loaded position and to facilitate removing of a container from said upper support surface of said top frame means to an unloaded position, said container movement control means including;

1) a cable means attached to said top frame means and attachable to a container to facilitate control of loading and unloading thereof with respect to said upper support surface of said top frame means;

2) a reeve cylinder means mounted to said top frame means and being operative to extend and retract said cable means for urging movement of a container between the loaded and unloaded positions, said reeve cylinder means being contained entirely within said top frame means;

e) a container locking means for detachably securing the container with respect to said top frame means responsive to positioning of the container in the loaded position, said container locking means being adapted to engage the front roller means of a container to facilitate securing of the container with respect to said top frame means responsive to positioning of the container in the loaded position, said container locking means including;

1) a front hook means fixedly secured to said top frame means and adapted to engage the front rollers of a container for selective locking thereof with respect to said top frame means responsive to positioning of the container in the loaded position; and

2) a locking strut means comprising a pair of locking struts having planar guide surfaces secured to said subframe means and extending outwardly therefrom to a position generally adjacent said front hook means to prevent disengagement of the front roller means of a container from engagement with said front hook means responsive to positioning of a container in the loaded position, said locking strut means being positioned extending upwardly adjacent and across said front hook means to define therebetween a retaining zone means adapted to receive and hold the front roller means of a container therewithin responsive to positioning of a container in the loaded position.

21. An apparatus for loading and unloading of a container, having a front roller means, upon a roll-off vehicle having a frame comprising:

a) a subframe means attachable fixedly directly to the frame of the roll-off vehicle;

b) a top frame means pivotally movably secured to said subframe means and defining an upper support surface for receiving of a container positioned thereupon, said top frame means defining a shoe track means extending longitudinally therealong;

c) a lifting means attached to said subframe means and said top frame means and being operative to move said top frame means between an lifted position vertically inclined with respect to said subframe means to facilitate loading and unloading of containers and a lowered position to facilitate transport of a container selectively attached with respect to the roll-off vehicle, said lifting means comprising at least one lifting cylinder means attached to said subframe means and to said top frame means and being operative to be selectively extensible and retractable, said lifting cylinder means being operative when extended to move said top frame means toward said lifted position thereof and being operative responsive to retracting thereof to move said top frame means toward said lowered position, said lifting cylinder means being contained within said top frame means responsive to positioning of said top frame means in the lowered position, said top frame means being substantially coplanar with respect to said sub frame means responsive to said top frame means being in the lowered position, said lifting cylinder means comprising a first lifting cylinder and a second lifting cylinder extending generally parallel with respect to one another;

d) the container movement control means secured to said top frame means and attachable with respect to a container to facilitate moving of a container onto said upper support surface of said top frame means in a loaded position and to facilitate removing of a container from said upper support surface of said top frame means to an unloaded position, said container movement control means including;

1) a cable means attached to said top frame means and attachable to a container to facilitate control of loading and unloading thereof with respect to said upper support surface of said top frame means;

2) a reeve cylinder means mounted to said top frame means and being operative to extend and retract said cable means for urging movement of a container between the loaded and unloaded positions, said reeve cylinder means being contained entirely within said top frame means;

3) a shoe means movably mounted to said top frame means to be moveable longitudinally therealong, said reeve cylinder being attached to said shoe means and being operative to extend and retract said shoe means responsive to extension and retracting of said reeve cylinder means;

4) a shoe sheave means rotatably movably mounted with respect to said shoe means and adapted to receive said cable means extending therearound to facilitate movement of a container between the loaded position and the unloaded position responsive to extension and retraction of said reeve cylinder means, said shoe sheave means including;

a. an upper shoe sheave groove extending peripherally therearound to facilitate containment of said cable means extending circumferentially therearound; and

, a lower shoe sheave groove extending peripherally therearound to facilitate containment of said cable means extending circumferentially therearound;

5) a lower front sheave means rotatably mounted to said top frame means;

6) an upper front sheave means rotatably mounted to said top frame means, said upper front sheave means being obliquely oriented extending through said top frame means to facilitate exiting of said cable means therefrom above said top frame means to facilitate detachable securement thereof with respect to a container, said cable means being secured to said top frame means and extending rearwardly toward said shoe sheave means to extend around said lower shoe sheave groove thereof, said cable means then extending forwardly toward said lower front sheave means and therearound, said cable means then extending rearward toward said shoe sheave means and extending around said upper shoe sheave groove thereof, said cable means then extending forwardly to said upper front sheave means and therearound to a position above said top frame means, said cable then being attachable directly to a container to facilitate control of movement of a container between the unloaded and loaded positions thereof responsive to extension and refraction of said reeve cylinder means;

e) a container locking means for detachably securing the container with respect to said top frame means responsive to positioning of the container in the loaded position, said container locking means being adapted to engage the front roller means of a container to facilitate securing of the container with respect to said top frame means responsive to positioning of the container in the loaded position, said container locking means including;

1) a front hook means fixedly secured to said top frame means and adapted to engage the front rollers of a container for selective locking thereof with respect to said top frame means responsive to positioning of the container in the loaded position, said front hook means including a C-shaped hook means facing rearwardly along said top frame means, said C-shaped hook means adapted to receive the front wheel means of a container positioned therewithin for selectively locking the container in the loaded position; and

2) a locking strut means comprising a pair of locking struts having planar guide surfaces secured to said subframe means and extending outwardly therefrom to a position generally adjacent said front hook means to prevent disengagement of the front roller means of a container from engagement with said front hook means responsive to positioning of a container in the loaded position, said locking strut means being positioned extending upwardly adjacent and across said front hook means to define therebetween a retaining zone means adapted to receive and hold the front roller means of a container therewithin responsive to positioning of a container in the loaded position, said locking strut means including the guide surfaces extending outwardly away from said subframe means toward the position of said top frame means when located in said lifted position thereof to facilitating guiding of movement of said top frame means from said lifted position to said lowered position while maintaining proper alignment between said top frame means and said subframe means, said front hook means selectively locking a front roller means of a container therewithin to prevent movement up, down or longitudinally forwardly along the roll-off vehicle and said locking strut means selectively locking a front roller means of a container thereadjacent to prevent movement longitudinally rearwardly along the roll-off vehicle.