Pavement patching vehicle
First Claim
1. An improved pavement patching vehicle of the type including a movable distribution hopper for use with a patching material, the improvement comprising:
- a supply hopper, mounted to the vehicle, having sidewalls for containing a supply of the patching material;
said supply hopper having a patching material discharge opening for discharging patching material from the supply hopper to the distribution hopper;
means for selectively delivering patching material from the supply hopper through the patching material discharge opening and to the distribution hopper; and
means for movably mounting the supply hopper to the vehicle for movement between lowered and raised positions, the movably mounting means including a lift arm pivotally connected to the vehicle at its inner end, the lift arm pivotable about a lift arm axis, and a ram mounted to the vehicle, the ram operably coupled to a rotatable driver mounted to the vehicle for movement about a driver axis, the driver and lift arm axes being transverse to one another.
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Accused Products
Abstract
An improved pavement patching vehicle includes a movable distribution hopper and a supply hopper having an opening for discharging patching material into an underlying distribution hopper. The supply hopper, heated by catalytic radiant panels, includes a bottom, sidewalls and a pivotal hood. The supply hopper is mounted to the vehicle by a pair of lift arms and a pair of support arms. The lift arms are secured to a common lift shaft mounted to the vehicle parallel to the vehicle axis. The lift shaft is driven by a single piston and cylinder combination mounted generally parallel to the vehicle axis through a gear drive. This drive is compact due to positioning of the piston and cylinder combination.
27 Citations
21 Claims
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1. An improved pavement patching vehicle of the type including a movable distribution hopper for use with a patching material, the improvement comprising:
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a supply hopper, mounted to the vehicle, having sidewalls for containing a supply of the patching material; said supply hopper having a patching material discharge opening for discharging patching material from the supply hopper to the distribution hopper; means for selectively delivering patching material from the supply hopper through the patching material discharge opening and to the distribution hopper; and means for movably mounting the supply hopper to the vehicle for movement between lowered and raised positions, the movably mounting means including a lift arm pivotally connected to the vehicle at its inner end, the lift arm pivotable about a lift arm axis, and a ram mounted to the vehicle, the ram operably coupled to a rotatable driver mounted to the vehicle for movement about a driver axis, the driver and lift arm axes being transverse to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An improved pavement patching vehicle of the type including a vehicle axis and a movable distribution hopper for use with patching material, the improvement comprising:
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a supply hopper, for holding a supply of the patching material, including sidewalls, a movable hood and a patching material discharge opening; radiant heating means mounted to the supply hopper for keeping the patching material at an elevated temperature; means for transferring patching material to the patching material discharge opening for deposit into the distribution hopper; a lift shaft, including a lift axis, mounted to the vehicle for rotation about the lift axis, the lift axis being parallel to the vehicle axis; first and second lift arms, including inner and outer ends, pivotally mounted at their outer ends to the supply hopper, the lift arm inner ends secured to the lift shaft for movement therewith; a support arm pivotally connected at its ends between the vehicle and the supply hopper; a rotating drive member mounted to the vehicle for rotational movement about a drive axis, the drive axis being generally perpendicular to a vertical plane passing through the lift axis; a ram mounted to the vehicle and operably connected to the rotating drive member; and first and second flexible connectors, each having inner and outer ends, the outer ends connected to the rotating drive member and the inner ends connected to the lift shaft, the flexible connector inner ends being wrapped about the lift shaft in opposite rotary directions so that the lift shaft is driven in the rotary direction corresponding to the direction of rotation of the drive member.
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Specification