초록 ▼

A roadway surface patching vehicle is described wherein virtually all roadway patching procedures may be performed by a single operator within a control station of the vehicle unit. The vehicle includes a number roadway repair tools mounted to a moveable carriage on the vehicle frame. This carriage

A roadway surface patching vehicle is described wherein virtually all roadway patching procedures may be performed by a single operator within a control station of the vehicle unit. The vehicle includes a number roadway repair tools mounted to a moveable carriage on the vehicle frame. This carriage is situated intermediate the control station and the front vehicle wheels. Among the operative tools are a cutter head and a vacuum head adjacent to the cutter head for receiving and directing loose particulate roadway surface material to a storage hopper for subsequent reblending and reuse. The vacuum head may also be used to clean the area adjacent the repair following placement and finished tamping and rolling of the new repair materials. A tamping head is also mounted to the carriage for movement therewith and a roller is mounted to the frame for finishing the repair to grade. A spread flame torch is provided on the carriage to heat the prepared cavity, melt ice, or dry the area in the vicinity of the cavity to facilitate reception of the roadway repair material therein. A tack coat spray nozzle is also situated to spray the cavity walls prior to reception of the repair material. All tools may be mounted to a turret on the carriage to be selectively rotated into view prior to operation. All operations involved in preparing the cavity and effecting the repair may thus be performed within full view of the operator station and by a single operator.

대표청구항 ▼

1. A roadway patching vehicle for repairing broken or otherwise damaged roadway surface areas bounded by undamaged useful roadway surface, the vehicle comprising: a wheel supported frame having a front pair of wheels at a front frame end and a rear pair of wheels adjacent a rear frame end; an op

1. A roadway patching vehicle for repairing broken or otherwise damaged roadway surface areas bounded by undamaged useful roadway surface, the vehicle comprising: a wheel supported frame having a front pair of wheels at a front frame end and a rear pair of wheels adjacent a rear frame end; an operator's station on the frame; a tool support carriage on the frame between the front and rear wheels in view from the operator's station, selectively movable under the frame within an area substantially confined by the frame between the front and rear wheels and viewable from the operator's control station; a roadway surface cutter head on the tool carriage for movement with the carriage and operable to cut through an existing roadway surface at a damaged area thereof to break the damaged roadway surface into loosened fragments and to form a cavity bounded by useful roadway surface; torch means on the carriage for movement therewith for insertion into a roadway cavity to heat and dry exposed cavity surfaces; a vacuum head on the carriage independent of the cutter head for insertion into a cavity formed by the cutter head to receive surface fragments from operation of the cutter head, existing surface water at the damaged area, or other debris or liquid found at the site of the damaged roadway surface area; collector means on the frame operatively connected to the vacuum head for supplying vacuum pressure through the vacuum head to collect surface liquids or particulates including the loosened fragments removed by the cutter head; a hopper in fixed position on the frame for receiving roadway repair materials; extendible delivery means leading from a fixed end on the fixed hopper to a movable discharge end on the carriage, for movement responsive to movement of the carriage and for receiving roadway repair material from the fixed hopper and delivering it through the movable discharge end; an applicator head on the tool carriage for movement with the carriage for receiving material from the discharge end of the delivery means and for filling the cavity prepared by the cutter head; and finishing means on the carriage for movement therewith to prepare a new surface on the roadway repair material discharged by the delivery means. 2. The roadway patching vehicle as claimed by claim 1 further comprising: internal combustion drive means on the frame operatively connected to wheels on the frame for selectively powering the frame to move along; wherein said internal combustion drive means includes an exhaust system with a discharge pipe for discharging exhaust gases; deflector means attached to the exhaust system, selectively operable to deflect exhaust from the discharge pipe; and an auxiliary heat pipe interconnecting the deflector means and hopper for receiving deflected exhaust gases through the deflector means and dispensing the deflected gases to the hopper to heat the hopper and its contents. 3. The roadway patching vehicle as claimed by claim 1 wherein the finishing means is comprised of: a tamper head mounted to the carriage for movement therewith and operable to tamp roadway repair material applied by the applicator head. 4. The roadway patching vehicle as claimed by claim 3, wherein the finishing means is further comprised of a pressure roller head on the frame in view from the operator's control station, for pressing roadway repair material delivered into the cavity through the applicator head to form a repaired roadway surface. 5. The roadway patching vehicle as claimed by claim 1 wherein the applicator head is comprised of: a roadway repair material spreader connected to the discharge end of the delivery means, for evenly distributing received roadway repair material over a prescribed area. 6. The roadway patching vehicle as claimed by claim 1 wherein the applicator head includes a striker bar mounted thereto for movement with the tool carriage for roughly leveling roadway repair material delivered through the applicator head; and means for heating said striker bar. 7. The roadway patching vehicle as claimed by claim 1 wherein the vacuum head is mounted to the tool carriage for selective vertical movement thereon in relation to the cutter head and independently of the cutter head so it may be lowered into a cavity formed by the cutter head to remove liquids and debris therefrom. 8. The roadway patching vehicle as claimed by claim 1 wherein the collector means is comprised of: a collection hopper on the frame adapted to receive and store roadway surface fragments loosened by the cutter head; vacuum line extending between the collecting hopper and vacuum head; and water collection means including: a valve in the vacuum line; a water collection tank; and a water suction line leading from the water collection tank to the valve; wherein the valve is operable to divert suction through the water suction line and into the water collection tank. 9. A vehicle for patching a damaged area of a roadway surface, comprising: an elongated rigid frame having a front and a rearward end; spaced front and rear pairs of wheels on the frame at the respective front and rear frame ends for movably supporting the frame along the roadway surface; an operator's control station on the frame adjacent an end thereof; a tool support carriage on the frame adjacent the operator's control station and between the front and rear wheels, selectively movable within an area below and confined by the frame from within the operator's control station; cutter head means on the carriage for movement therewith selectively operable from the operator's control station for breaking the roadway surface into loose fragments and for preparing a cavity in the damaged area of the roadway surface; repair material delivery means on the frame selectively operable from the operator's control station for delivering roadway repair material to a discharge on and movable with the carriage; a hopper in fixed position on the frame for supplying repair material to the delivery means; applicator means on the tool carriage for receiving repair material from the delivery means and for filling and spreading repair material within a cavity formed in a roadway surface by the cutter head means; finishing means on the carriage for preparing a new surface on roadway repair material discharged through the applicator means, consistent with the existing roadway surface; and turret means on the carriage supporting the cutter head means applicator means and finishing means for selective pivoted movement about an upright axis to bring the cutter head, applicator or finishing means to an operating station in full view from the operator's control station. 10. The vehicle for patching a damaged area of a roadway surface as claimed by claim 9 further comprising: a roller on the frame spaced from the tool support carriage adapted to be rolled over roadway surface and the repair material applied by the applicator means over the cavity. 11. The vehicle for patching a damaged area of a roadway surface as claimed by claim 9 wherein the finishing means is further comprised of: a tamper head mounted to the turret means for movement therewith and selectively operable from the operator's control station to tamp roadway repair material along the roadway surface applied by the applicator means. 12. The vehicle for patching a damaged area of a roadway surface as claimed by claim 9 further comprising: internal combustion drive means on the frame operatively connected to wheels on the frame for selectively powering the frame to move along; wherein said internal combustion drive means includes an exhaust system for discharging exhaust gases through a discharge pipe; deflector means attached to the exhaust system, selectively operable to deflect exhaust from the discharge pipe; and an auxiliary heat pipe interconnecting the deflector means and hopper for receiving deflected exhaust gases through the deflector means and dispensing the deflected gases to the hopper to heat the hopper and its contents. 13. The vehicle for patching a damaged area of a roadway surface as claimed by claim 9 further comprising: a vacuum head on the turret means, adapted to receive roadway surface fragments loosened by the cutter head means; and collector means on the frame operatively connected to the vacuum head for supplying vacuum pressure through the vacuum head and for collecting and storing the roadway surface fragments received by the vacuum head. 14. The vehicle for patching a damaged area of a roadway surface as claimed by claim 13, wherein the vacuum head is mounted to the tool support carriage for vertical movement thereon independently of the cutter head. 15. The vehicle for patching a damaged area of a roadway surface as claimed by claim 13, wherein the collector means includes: a collection hopper on the frame adapted to receive and store roadway surface fragments loosened by the cutter head; a vacuum line extending between the collection hopper and vacuum head; and further comprising water collection means including: a valve in the vacuum line; a water collection tank; and a water suction line leading from the water collection tank to the valve; and wherein the valve is operable to divert suction through the water suction line and into the water collection tank. 16. A vehicle for patching a damaged area along a roadway surface, comprising: an elongated rigid frame having a front and a rearward end; front and rear pairs of wheels on the frame at the respective front and rear frame ends for movably supporting the frame along the roadway surface; as an operator's control station on the frame adjacent an end thereof; a tool support carriage on the frame adjacent the operator's control station and between the front and rear wheels, selectively movable on the frame from within the operator's control station in forward, backward and side-to-side directions under the frame and within the confines thereof; vertically movable cutter head means on the carriage selectively operable from the operator's control station for breaking the roadway surface into loose fragments and for preparing a cavity in the roadway surface; repair material delivery means on the frame selectively operable from the operator's control station for deliverying roadway repair material from a hopper fixed to the frame to a discharge mounted on the carriage for movement therewith; vertically movable applicator means for receiving repair material from the delivery means and for filling a cavity formed in a roadway surface by the cutter head means; vertically movable torch means for heating and drying surfaces of a cavity; collector means including a vertically movable vacuum head for suctioning solid particulate debris and liquids such as water from within and around a cavity; vertically movable ram tamper means for compacting the bottom surface of a cavity; tack coat means for spraying a adhesive material into a cavity; and turret means on the carriage for movement therewith and mounting the cutter head means, vacuum head, applicator means, torch means, ram tamper means and tack coat means to the carriage for selective rotational movement thereon about an upright axis to an operating station under the frame in clear view from the operator's control station. 17. The vehicle for patching a damaged area along a roadway surface as claimed by claim 16 further comprising a vertically movable vibratory tamper means mounted to the turret for selective rotation therewith for compacting repair materials placed within the cavity through said applicator means. 18. The vehicle for patching a damaged area along a roadway surface as claimed by claim 17 further comprising a roller rotatably mounted to the vehicle frame clear of the tool support carriage for engaging and pressing against the roadway surface to press repair materials into the filled cavity to a level consistent with the remaining undamaged surface of the roadway. 19. The vehicle for patching a damaged area along a roadway surface as claimed by claim 16 wherein the repair delivery means is comprised of: first and second trough conveyors, the first trough conveyor being connected to the fixed hopper and extending therefrom to a discharge end remote from the hopper, for receiving roadway repair material from the hopper and delivering it to the discharge end, and the second trough conveyor being elongated and connected to the first trough conveyor at the discharge end thereof for pivotal motion about an axis passing through the first trough conveyor discharge and for longitudinal sliding motion in relation to the first trough conveyor, the second trough conveyor having a discharge connected to the applicator means. 20. The vehicle for patching a damaged area along a roadway surface as claimed by claim 19 wherein the hopper and the trough conveyors are double walled, forming enclosed plenum chambers and further comprising heater means connected to said plenum chambers for circulating heated gases to heat and maintain the repair materials within the hopper and trough conveyors in a heated condition. 21. The vehicle for patching a damaged area along a roadway surface as claimed by claim 20 further comprising: internal combustion drive means on the frame operatively connected to wheels on the frame for selectively powering the frame to move along; wherein said internal combustion drive means includes an exhaust system for discharging exhaust gases through a discharge pipe; deflector means attached to the exhaust system, selectively operable to deflect exhaust from the discharge pipe; and an auxiliary heat pipe interconnecting the deflector means and hopper for receiving deflected exhaust gases through the deflector means and dispensing the deflected gases to the hopper to heat the hopper and its contents. 22. The vehicle for patching a damaged area along a roadway surface as claimed by claim 16 further comprising vertically movable rotary brush means on the turret means, selectively operable to brush repair material into a cavity from a surrounding roadway surface. 23. The vehicle for patching a damaged area along a roadway surface as claimed by claims 22 wherein the brush includes a circular bristle brush driven to rotate about an inclined axis. 24. The vehicle for patching a damaged area along a roadway surface as claimed by claim 16 wherein the collector means is comprised of: a collection hopper on the frame adapted to receive and store roadway surface fragments loosened by the cutter head; a vacuum line extending between the collection hopper and vacuum head; and water collection means including: a valve in the vacuum line; a water collection tank; and a water suction line leading from the water collection tank to the valve; wherein the valve is operable to divert suction through the water suction line and into the water collection tank. 25. The vehicle for patching a damaged area along a roadway surface as claimed by claim 16 wherein the applicator means is centered on the upright axis of the turret and wherein the vacuum means, cutter head, torch means, ram tamper means and tack coat means are angularly oriented about the axis and radially spaced in relation thereto from the applicator means.