Automatic latching device for tailgate
First Claim
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1. A tailgate latching device for a dump truck comprising:
- a load carrying means including a dump body and a tailgate;
a pin fixedly attached to said dump body;
a tailgate lever arm pivotably attached to said dump body;
said tailgate lever arm having a first end and a second end, said first end fixedly attached to said tailgate;
a hook pivotably attached to said second end of said tailgate lever arm, wherein said hook is adapted to engage said pin; and
means for automatically rotating said hook out of engagement with said pin when at least a portion of said dump body is raised to a load dispensing position.
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Abstract
A dump truck is provided with a dump body having a tailgate. A lever arm having a first end and a second end is pivotably attached to the dump body. The first end is fixedly attached to the tailgate and the second end is attached to a latching device which locks the position of the lever arm. When the dump body is raised, the latching device is deactivated and the position of the lever arm is unlocked. When the dump body is lowered, the latching device is activated and locks the position of the lever arm, thereby locking the position of the tailgate.
9 Citations
17 Claims
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1. A tailgate latching device for a dump truck comprising:
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a load carrying means including a dump body and a tailgate; a pin fixedly attached to said dump body; a tailgate lever arm pivotably attached to said dump body; said tailgate lever arm having a first end and a second end, said first end fixedly attached to said tailgate; a hook pivotably attached to said second end of said tailgate lever arm, wherein said hook is adapted to engage said pin; and means for automatically rotating said hook out of engagement with said pin when at least a portion of said dump body is raised to a load dispensing position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tailgate latching device for a dump truck comprising:
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a load carrying means including a tailgate and a dump body; a pin fixedly attached to said dump body; a tailgate lever arm pivotably mounted to said dump body, said tailgate lever arm having a first end and a second end, said first end fixedly attached to said tailgate; latching means located entirely at a point remote from said tailgate and attached to said second end of said tailgate lever arm for locking the position of said lever arm with respect to said dump body, said latching means adapted to engage said pin; and means for automatically controlling said latching means based on the vertical positioning of said dump body. - View Dependent Claims (9, 10)
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11. A tailgate latching device for a dump truck comprising:
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load carrying means including a dump body and a tailgate; a pin fixedly attached to said dump body; a tailgate lever arm pivotably mounted to said dump body, said tailgate lever arm having a first end and a second end, said first end fixedly attached to said tailgate; latching means, located entirely at a point remote from said tailgate and attached to said tailgate lever arm for locking the position of said lever arm with respect to said dump body, said latching means including means to engage said pin; and means for automatically activating said latching means. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification