Pivotally mounted ripping teeth assembly on dozer blade
First Claim
1. In an assembly adapted to be pivotally secured to a blade on heavy equipment, such as a bulldozer, in either a deployed or undeployed position, and including a rigid rectangular frame having (i) a plurality of teeth projecting from one transverse edge and (ii) mounting means for pivotally securing the frame to the blade, the improvement comprising:
- a tubular mounting sleeve secured to the edge of the frame opposite the teeth and a pair of forwardly projecting hangers fastened to the upper edge of the blade at opposite sides thereof, each hanger being releasably received by ears which are secured to the upper edge of the blade and receiving a pin projecting from opposite ends of the mounting sleeve so that the frame may be pivoted between the deployed position in which the frame lies along the front face of the blade and the undeployed position in which the frame projects upwardly above the upper edge of the blade.
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Accused Products
Abstract
This invention is an attachment to heavy equipment blades and has a set of ripping teeth projecting downwardly from a pivoting support frame. The frame ordinarily extends downwardly from the pivotal hanger along the front of the blade, with the teeth projecting beyond the lower edge of the blade. As the vehicle, such as a bulldozer, moves forward, the teeth rip, as would teeth which were rigidly secured to the blade. However, as the vehicle moves backward, the teeth and frames swing forward in a floating motion, preventing the teeth from fracturing while allowing the blade to scrape. In a preferred embodiment, the frame includes two end members, each having an ear which curves rearwardly toward the blade. Each bracket releasably receives a forwardly projecting hanger mounted on the upper surface of the blade. The hanger and brackets contain aligned apertures through which a pin is releasably inserted to secure the frame to the blade. With gussets, the frame may be wider than the blade.
36 Citations
8 Claims
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1. In an assembly adapted to be pivotally secured to a blade on heavy equipment, such as a bulldozer, in either a deployed or undeployed position, and including a rigid rectangular frame having (i) a plurality of teeth projecting from one transverse edge and (ii) mounting means for pivotally securing the frame to the blade, the improvement comprising:
a tubular mounting sleeve secured to the edge of the frame opposite the teeth and a pair of forwardly projecting hangers fastened to the upper edge of the blade at opposite sides thereof, each hanger being releasably received by ears which are secured to the upper edge of the blade and receiving a pin projecting from opposite ends of the mounting sleeve so that the frame may be pivoted between the deployed position in which the frame lies along the front face of the blade and the undeployed position in which the frame projects upwardly above the upper edge of the blade.
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2. In an assembly adapted to be pivotally secured to a blade on heavy equipment, such as a bulldozer, in either a deployed or undeployed position, and including a rigid rectangular frame having (i) a plurality of teeth projecting from one transverse edge and (ii) mounting means for pivotally securing the frame to the blade, the improvement comprising:
a tubular mounting sleeve secured to the edge of the frame opposite the teeth and a pair of forwardly projecting hangers fastened to the upper edge of the blade at opposite sides thereof, each hanger receiving a pin projecting from opposite ends of the mounting sleeve so that the frame may be pivoted between the deployed position in which the frame lies along the front face of the blade and the undeployed position in which the frame projects upwardly above the upper edge of the blade, said pins being slidably received in the hangers and the inwardly projecting end of each pin having a circumferential groove for receiving a set screw threaded in a bore through the mounting sleeve so that set screws contact the pins within the grooves to secure the pins to the sleeves while allowing the pins to rotate in the hangers.
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3. In an assembly adapted to be pivotally secured to a blade on heavy equipment, such as a bulldozer, in either a deployed or undeployed position, and including a rigid rectangular frame having (i) a plurality of teeth projecting from one transverse edge and (ii) mounting means for pivotally securing the frame to the blade, the improvement comprising:
a tubular mounting sleeve secured to the edge of the frame opposite the teeth and a pair of forwardly projecting hangers fastened to the upper edge of the blade at opposite sides thereof, each hanger receiving a pin projecting from opposite ends of the mounting sleeve so that the frame may be pivoted between the deployed position in which the frame lies along the front face of the blade and the undeployed position in which the frame projects upwardly above the upper edge of the blade, said assembly extending outwardly from sides of the blade and the frame having gussets to reduce transverse stresses on the hangers by positioning the frame against the sides of the blade.
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4. In an assembly adapted to be pivotally secured to a blade on heavy equipment, such as a bulldozer, and including (i) a rigid rectangular frame having a pair of rigid, elongated side members and a plurality of teeth projecting downwardly from a lower edge of the frame, and (ii) mounting means for pivotally securing the frame to the blade, the improvement comprising:
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an ear secured to the upper end of each side member to curve upwardly and rearwardly toward the blade; and a pair of spaced hangers projecting forwardly from the upper edge of the blade and capable of being pivotally secured to the ears, whereby the rearward curvature of the ears minimizes the necessary projection distance of the hanger, thereby minimizing the moment arm of the hangers with respect to transverse forces applied to the assembly. - View Dependent Claims (5, 6, 7, 8)
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Specification