Forklift dumping means
First Claim
1. IN A FORKLIFT FOR RAISING AND DUMPING A CONTAINER HAVING A BOTTOM AND A REARWARDLY DIRECTED FACE AND PROVIDED WITH ALIGNED PIVOT PINS AT THE REAR CORNERS BETWEEN SAID BOTTOM AND FACE, SAID FORKLIFT HAVING A VERTICAL GUIDE, A LIFT COMPONENT OPERABLE IN SAID GUIDE, AND LIFT FORKS EXTENDING FORWARDLY FROM SAID COMPONENT, (A) FORWARDLY EXTENDING BRACKETS AFFIXED TO THE OPPOSITE SIDES OF THE UPPER END OF SAID GUIDE, (B) AN ARM PIVOTALLY MOUNTED ON EACH BRACKET AND MOVABLE BETWEEN RETRACTED AND PROJECTED POSITIONS, (C) SPRING MEANS TO BIAS THE ARMS OF RETRACTED POSITION, (D) MEANS TO MOVE THE ARMS TO PROJECTED POSITION AGAINST THE BIAS OF SAID SPRING MEANS, (E) EACH ARM BEING PROVIDED WITH A HOOK PORTION THAT IS REARWARDLY CLEAR OF THE REARWARD PART AND OF THE PIVOT PINS OF THE CONTAINER SUPPORTED BY THE LIFT FORKS WHEN THE ARMS ARE RETRACTED DURING LIFTING OF THE LATER, EACH SAID HOOK PORTION BEING IN THE PATH OF LOWERING MOVEMENT OF A CONTAINER SUPPORTED ON THE LIFT FORKS AND OF SAID PIVOT PINS, WHEN THE ARMS ARE PROJECTED, TO PIVOTALLY ENGAGE SAID PINS WHEN THE LIFT COMPONENT AND THE CONTAINER ARE LOWERED, AND (F) RETAINER MEMBERS FORWARDLY SPACED FROM THE PIVOT PINS AND BETWEEN WHICH AND SAID PIVOT PINS SAID HOOK PORTIONS ARE DISPOSED WHEN IN HOOKING ENGAGEMENT WITH THE PIVOT PINS, (G) THE CONTAINER, UPON CONTINUED LOWERING MOVEMENT OF THE LIFT COMPONENT AND THE LIFT FINGERS THEREOF, BEING RELEASED FOR FORWARD TILTABLE DUMPING MOVEMENT AROUND SAID HOOK-ENGAGED PINS AS A FULCRUM, THE RETAINER MEMBERS MOVING THE HOOK-RETAINING POSITION DURING SUCH TILTING MOVEMENT, (H) SAID FORWARDLY DIRECTED BRACKETS BEING PROVIDED WITH FORWARDLY DIRECTED WALLS ON WHICH THE ARMS ARE PIVOTALLY MOUNTED, AND STOP PINS ON SAID WALLS TO LIMIT THE PROJECTED AND RETRACTED POSITIONS OF THE HOOK-PROVIDED ARMS.
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Accused Products
6 Citations
1 Claim
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1. IN A FORKLIFT FOR RAISING AND DUMPING A CONTAINER HAVING A BOTTOM AND A REARWARDLY DIRECTED FACE AND PROVIDED WITH ALIGNED PIVOT PINS AT THE REAR CORNERS BETWEEN SAID BOTTOM AND FACE, SAID FORKLIFT HAVING A VERTICAL GUIDE, A LIFT COMPONENT OPERABLE IN SAID GUIDE, AND LIFT FORKS EXTENDING FORWARDLY FROM SAID COMPONENT, (A) FORWARDLY EXTENDING BRACKETS AFFIXED TO THE OPPOSITE SIDES OF THE UPPER END OF SAID GUIDE, (B) AN ARM PIVOTALLY MOUNTED ON EACH BRACKET AND MOVABLE BETWEEN RETRACTED AND PROJECTED POSITIONS, (C) SPRING MEANS TO BIAS THE ARMS OF RETRACTED POSITION, (D) MEANS TO MOVE THE ARMS TO PROJECTED POSITION AGAINST THE BIAS OF SAID SPRING MEANS, (E) EACH ARM BEING PROVIDED WITH A HOOK PORTION THAT IS REARWARDLY CLEAR OF THE REARWARD PART AND OF THE PIVOT PINS OF THE CONTAINER SUPPORTED BY THE LIFT FORKS WHEN THE ARMS ARE RETRACTED DURING LIFTING OF THE LATER, EACH SAID HOOK PORTION BEING IN THE PATH OF LOWERING MOVEMENT OF A CONTAINER SUPPORTED ON THE LIFT FORKS AND OF SAID PIVOT PINS, WHEN THE ARMS ARE PROJECTED, TO PIVOTALLY ENGAGE SAID PINS WHEN THE LIFT COMPONENT AND THE CONTAINER ARE LOWERED, AND (F) RETAINER MEMBERS FORWARDLY SPACED FROM THE PIVOT PINS AND BETWEEN WHICH AND SAID PIVOT PINS SAID HOOK PORTIONS ARE DISPOSED WHEN IN HOOKING ENGAGEMENT WITH THE PIVOT PINS, (G) THE CONTAINER, UPON CONTINUED LOWERING MOVEMENT OF THE LIFT COMPONENT AND THE LIFT FINGERS THEREOF, BEING RELEASED FOR FORWARD TILTABLE DUMPING MOVEMENT AROUND SAID HOOK-ENGAGED PINS AS A FULCRUM, THE RETAINER MEMBERS MOVING THE HOOK-RETAINING POSITION DURING SUCH TILTING MOVEMENT, (H) SAID FORWARDLY DIRECTED BRACKETS BEING PROVIDED WITH FORWARDLY DIRECTED WALLS ON WHICH THE ARMS ARE PIVOTALLY MOUNTED, AND STOP PINS ON SAID WALLS TO LIMIT THE PROJECTED AND RETRACTED POSITIONS OF THE HOOK-PROVIDED ARMS.
Specification
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- Resources
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Current AssigneeWilliam A. Allen
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Original AssigneeWilliam A. Allen
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InventorsAllen, William A.
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Application NumberUS04/555,611Time in Patent Office568 DaysField of SearchUS Class Current414/424CPC Class CodesB66F 9/19 Additional means for facili...
