CA1235935A - Asphalt repair truck - Google Patents
Asphalt repair truckInfo
- Publication number
- CA1235935A CA1235935A CA000473109A CA473109A CA1235935A CA 1235935 A CA1235935 A CA 1235935A CA 000473109 A CA000473109 A CA 000473109A CA 473109 A CA473109 A CA 473109A CA 1235935 A CA1235935 A CA 1235935A
- Authority
- CA
- Canada
- Prior art keywords
- heating panel
- asphalt
- truck
- vehicle
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 52
- 230000008439 repair process Effects 0.000 title abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 60
- 239000002828 fuel tank Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000000153 supplemental effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 3
- 101000657326 Homo sapiens Protein TANC2 Proteins 0.000 description 1
- 102100034784 Protein TANC2 Human genes 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A truck having a radiant heating panel to heat asphalt as the truck is moved along the surface of asphalt which needs repair. Asphalt from a hopper carried by the truck is used to fill the area to be repaired and the heat which has penetrated deeply into the area to be repaired causes the new asphalt to be bonded to the old asphalt to make the necessary repair.
Means are provided to permit the heating panel to be moved about without moving the truck to aid in providing the necessary heat to the area to be repaired. The heating panel is divided into individually controllable zones to permit different size areas of asphalt to be efficiently repaired.
A truck having a radiant heating panel to heat asphalt as the truck is moved along the surface of asphalt which needs repair. Asphalt from a hopper carried by the truck is used to fill the area to be repaired and the heat which has penetrated deeply into the area to be repaired causes the new asphalt to be bonded to the old asphalt to make the necessary repair.
Means are provided to permit the heating panel to be moved about without moving the truck to aid in providing the necessary heat to the area to be repaired. The heating panel is divided into individually controllable zones to permit different size areas of asphalt to be efficiently repaired.
Description
ASPHALT REPAIR TRI,~C~
Back~round of ~he Invention I. Field of ~he Invèntion ._ _ __ The present invention relates to equipment for repair-ing asphal, road sur~aces and the like and more particularly to~ truck which can be moved along the surface of the asphalt surface to be repaired and which includes a radian-t heating panel and means for manipula~ir,g -~he heating panel so that the heat can be precisely directed to the area ~o be repairea without requiring movement of the truck.
II. Descriplion of-the Prior Art The conventional method for repairing pot holes and the like in asphalt roadways or other asphalt suraces has been to remove a por~ion of the asphalt around the damaged area by an air hammer down to the depth of the damage and then fill the removed area with new asphalt.
This method of xepair has several disadvantages. The method is time-consuming and requires expensive e~uipment. The joint formed between the new asphalt and the existing asphalt is weak and in cold climates such repairs can o~ly be made du~ing part of the year.
Summary of the Pxesent Invention The present invention provides a truck intended for use in patching asphalt or the like by a method whi~h eliminaies many of the problems inherent in the method employed in the past. The truck is self-contained, thereby reduGing the equipment needed to do the patching and the number of crew members required.
Unlike equipment used -~o practice the method here-~ofore employed to repair asphalt, the truck of the present invention is provided with means ~o be used in a method in which the asphalt to be repaired is heated and new asphalt is used -to ~3~5 . 2 fill the repair. A luminous radiant heacing panel heats Ihe asphal-c surface and causes hea. to penetrace inco the incerior of the exiscing asphalc roadwa~ so thar it can be scarified by hand. The new permanenr -cype asphal~ is then aelivered to the repair from the ~eàced s-torage compartmenc. This process causes the new and old asphalc to be bonded logecher to form a homogeneous repair.
The truck of ~he present in~ention includes a heated storage compartmen-c or hopper in which the already heated new asphalt can be kepr a-t the proper temperature or the cold permanent asphalt can be reheaied to the proper working temperacure until ihey are used and a hydraulic auger delivers the asphalc from the hopper to the point of use. A lift or hoist mechanis~ moun~s a roller to the truck so that ic can be readily removed co compac~ the asphalt to form a smooth sur-face.
Remote control means are provided to operate the vehicle so thac a crew member, utilizing a hand-hela control panel, can control the truck from outside che vehicle in a posilion where he can clearly see the area to be repaired.
The radiant heacing panel which is used to heat the surface and the interior of the asphalt to be repaired is of the type heretofore commonly used in industrial furnaces or the like and of the general type shown in U.S. Patent Nos. ~
25 2,828,813-and 3,008,513. An air-gas mixture is delivered -chrough firebricks carried in a frame co provide what is commonly called a luminous wall. Such hea-ters have been found L_ co be very efficient and che type used by Applican-c~ for insrance, is capable of deliveri.ng up -~o 1750 in just one 30 minute arld to penetrate the asphalt with over 60,000 B.T. U.s per square foot.
35i No. 3 Actempts have been made in che past to use such heaters for heating asphalt bu-t there have been aifficulties caused primarily by -the intense heat generated by such heacers~ If such heaters are kept over -the surface of the asphalt for a time sufficient to heat the interior of the asphalt to the desired temperature, the surface will ignite. This has no-t been a problem with inEra red heating systems because they do not produce the heat produced by luminous wall radiant heaters.
Such heaters, however, are inefficient and do not provide enough heat to heat the asphalt to the necessary depth.
Applicant has discovered that with luminous wall heaters it is necessary to provide a "soak time"; that is, a time to permit the heat to soak into the interior of the layer of asphalt. Wi~hout such a "soak time" i-t is impossible to heat the interior layer of the asphalt to the necessary tempera-ture to create the desired bonding without igniting the upper layer of the asphalt. There must be an interval between the times that the upper surface is subjected to heat ~rom the luminous wall to permit the hea-t to penetrate and raise the temperature of ~he interior of the asphalt. This is accomplished by manually turning the heating panels on and off until the heac penetrates to ihe proper depth.
In the trllck o~ the present invention this is accomplished b~ providing means to concrol the movement of the heating panel so that it can be precisely positioned with respect to the area to be repaired but moved away before the top surface ignites. Means are provided for mounting the C
luminous heating panel to the truck which permits the panel to ., be moved upwardt downward, back and forth, and rotationally.
.. .. ...
Description of the Drawin~s A better understanding of the present invention will be had upon reference to the following drawings in which like ~2~
llo. 4 reference numerals refer -to like parcs throughou~ the several views and in which:
Fig. 1 is a side perspeccive view of a cruck embodying -the presenc invencion;
Fig. 2 is a rear perspectîve ~iew iliustrating the truck of che presen~ invention in use;
Fig, 3 is a rear perspeciive view of che truck of the ~
presenc invention showing the heating panel in the ~ransporting -position ~h Fig. 4 is a fragmentary top plan view of ihe heating panel of the presenc invention;
Fig. 5 is a fragmentary side elevational ~iew illus-trating the heating panel of the presenc invention;
Fig. 6 is an elevational view of the heating panel of che present invention substantially as seen from the bottom of Fig. 4;
Fig. 7 is a top plan, partially diagramatic, ~iew of che heating panel of the present invention illustrating che manner in which che heating panel can be rotated, and;
20Fig. 8 is a fragmentary cross-sectional view of the heating panel of the present inv~ntion.
Detailed Description of a Préferred Embodiment of the Present Invention ~3 Now referring co the drawings for a detailed des-crip-tion of the present invencion, a vehicle or truck 10 is best shown in Figs. 1 and 3 as including front wheels 12 an rear wheels 14. The truck 10 includes a cab portion 16 for the driver and an engine compartment 18 (Fig. l? to house an in-ternal combustion engine (not shown) which is ~he prime mover for the truck 10.
Still referring -to Figs. 1 and 3, a hopper 20 is moun-ced near the rear of -rhe truck 10 and a fuel tank 22 is 4 ~
~2~3~
No. 5 mounced between che cab portion 16 and the hopper 20. A heat-ing panel 24, which will be described in greacer detail below, is moun-ted at che rear of che truck 10 and is movable becween tlle upper, transporcing posicion shown in Fig. 3 to the lower, 5 working posicion shown in Fig. 1. E
As best seen in Figs. 2 and 5, the truck 10 is pro-vided wich an auger delivery system, generally indicated at 26, to deliver asphalc from the hopper 20 to the rear of ~he heating panel 24.
The heacing panel 24 is of the radianc heater type which is commonly called a luminous wall. Wi-ch the exception of some modifications incorporated by the Applicant to re-cain the brick, such heating panels are most commonly ùsed in ~.
industrial furnaces and are shown in U.S. Patent Nos. 2,328,813 and 3,008,513. The heacing panel 24 is cons-trucced quite similarly to the furnaces shown in these patents and as best seen in Fig. 8 comprises a housing 30 defining a plurality of plenums 32a and 32b. The housing 30 carries firebrick 34 and is provided with a plurality of perforations 36 which provide 20 com~unication between the plenum 32 and the interior surfaces of the firebrick 34.
A gas-air mixture is supplied to inlets 37 to che plenums 32a and 32b from the fuel tank 22 and from a blower 38 (Fig. 3) by a conduit 29 and by connections shown schematically 25 at 42 and flows through the perforations 35 and the porous firebrick 34 to a firing face 40 at which the mixture burns to create a lumunous radiant heacing surface. _ Still referring to Fig. 8, plenums 32a and 32b are pre-ferably separaced by a wall 41, and the air-gas mixcure is separately provided to the plenums 32a and 32b by inlets 37 and is cGn~rolled by con~rols 43 so that a plurality of distinct ~235 No. 6 heating zones 44a and 44b (44e and 44d also in ~ig. 31 are pro-vided on ~he face 40 In -this eay each, or all, of che ~ones 44a, 44b, etc. can be fired ~o accommodate areas of different sizes requiring pacching. r Skirting 4~ is provided around the periphery of the hea-ting panel 24 to aid in retaining the heat in the work area.
The means for mouniing the heacing panel 24 to the vehicle 10 is shown in Fig~ 5 and comprises a frame member 46 -~o which ihe hea~ing panel 24 is atlached and means 47 ~or pivoially atcaching the frame membe~ 46 so thai che heacing panel 24 can be pivoted from the upper, transportiny position shown in Fig~ 3 to the lower, working position shown in Fig. 5.
A cylinder 48 moun~ed between the truck 10 and the frame member 46 and concrolled ~y a hydraulic system, shown schematically at 50, provides for control of the positioning of the heating panel 24.
Means are also provided to move the heating panel 24 in a horizontal sliding motion, and -this is shown in Fig. 6.
A sliding connection is provided between the frame member 46 and a support structure 51 carried by the heating member 24 by rollers 52 and a cylinder 54 (Fig. 2) can ~e actuated by a hydraulic syscem (not shown) co move the heating panel 24 in the direction Gf arrow 56 in Fig. 6 in a plane parallel to ihe ~
plane of the frame member 46. -The heating panel 24 is also mounted in a manner which permits rotational movement becween the frame member 46 and the heacing panel 24 about a ~ertical axis when the heating panel 24 is in the lower, working position. These means are shown in Figs 2, 6, 7 and 8 and comprise a plate member 58 mounced to the frame member 46 and having a cylindrical projection 60 which mates with a cylindrical socket 62 attached to -the housing 30 of heatiny panel 2~, so that the heating panel 24 rotates I
1235~35 No. 7 wilh respecc to ~ e pla ce mer,~er 58 and chus witl~ respecc to che frame member 46.
A cylinder 66 is mounted becween Ihe plate members 58 and 64 and is actuated by a hydraulic sys-cem (not shown) to S rocace che heating panel 24 wich respect co the frame member 46.
The various rotatlonal posicions of che heacing panel 24 are illustraced in Fig, 7 at various stages of excension of che cylinaer 66.
As best seen in Figs. 6 and 8, the arrangement of the cylindrical projeccion 60 and the cylindrical socket 62 is such thai movement of che heating panel 24 towara and away from the frame 46 in the direction of the arrow 68 is permitted. A
cyli~der Ç9 is ~rovided to produce movement of che heating panel 24 in the direction of the arrow 68 toward and away from the surface to be heated.
As can best be seen in Fig. 1, a lift 70 is provided on the side of -che truck 10 to permit the loading and unloading of a roller 72. To permit the roller 72 to be easily loaded onto and off the lift 75 a platform 74 is providea which is ro~atably mounted by means (not shown) to perml-t ~he platform 74 co be rotated co a position to receive the roller 72 or to permit che roller 72 to be remov~d from the lift 70 . A
cylinder 76 is provided to raise ana lower the lift 70. ~
Means, generally indicated at 78 in Fig. 2, are pro- -vided for remotely controlling the truck 10 and th~ positioning -of che heating panel 24, The means 78 permics an operator ~o move and to steer the truck 10 from outside the cab portion 16.
The hopper 20 is most clearly shown in Fig. 2 and comprises side walls 80, end walls 82, and a botcom 84 pre-ferably welded -toge~her to form a box for holding asphalt (not shotm). Doors 86 are mounted to the top o~ the hopper 20 and heating means 88 are carried in the bottom of th~ hopper 20 to ~3~35 ~ 8 maincain the asphalt in a heated condition ready for use. In addi.ion~ the hopper 20 has a double wa:Ll construction and is ~nsulated to improve heat retention.
The auger delivery syslem 26 extends between the bottom of the hopper 20 and a point adjacent the rear edge of the hea~-ing panel 24 and comprises a trough 92 and an auger 94 carried in a portion of the crough 92. As best seen in Fig. 4, the trough 92 includes an end porcion 96 hingedly connected to the trough 92 to permi-~ ~he end portion 96 co be ~olded up into a transporting position~
In use the iruck 10 is driven to an area where there is an asphal-t surface ~o be repaired with ~he heating panel 24 in the position shown in Fig. 3. The heating panel 24 is then pivo-ted downwardly to the position shown in Figs. 1, 2 and 4 close to and over the area to be repaired. The heating panel 24 is ired using only those zones 44a, 44b, 44c, 44d (Fig. 3) necessary to heat che area around the asphalt to be repaired.
The heating panel 24 can be mo~ed horizontally by actuating cylinder 54, up and down by actuating the cylinder 69, and rocationally by actuating the cylinder 66 to provide the desired heat throughout the layer of asphalt without moving the truck 10.
The manipulation o~ the heating panel 24 and even of the truck 10 can be accomplished from outside the cab portion 16 by a single operator using the remo-te con-trol 78.
The heacing panel 24, because it is constructea as a luminous wall, generates more heat than conventional infra red heaters so that care has to be taken not to ignite the upper layer of the asphalt. This is accomplish~dhaving the operator, utilizing the control panel 78, cycle the panel 24 on and off. I-c is essential that means be provided to permit the heat to soak into -the asphalt wi-thout igniting the upper 123~ 5 No. 9 layer of che asphalt because chis has been found ~o be the key -to permiLLing the use o~ radiant luminous wall heaLers to practice the r~nner of repairing asphal-c described herein~
After the asphalt has been heated ~o the proper 5 temperature -throughout ~he layer to be repaired, the heating r panel 24 is moved out of the way .o permit the workers ~o -properly scarify the heated area~ The auger 94 is then actuated ¦
to deliver asphalt from the hopper 20 to the area being 3 repaired. The asphalt being delivered has been main~ained at 10 an elevaked tempexature in ~he hopper 20 by the heaters 88 and hen it is delivered to the spot to be repaired ii bonds to the hea~ed scarifiea asphalt around the pot hole or ~he like being repaired.
The lift 70 then can be lowered to permit the roller 15 72 co be removed from the truck 10 and used ~o compact and smooth the repaired surface.
The remote control 78 is conneoted to the engine and to the steering mechanism of the truck 10 by conventional means so that the truck 10 as well as the heating panel 24 can be con-20 trolled from ouiside of the cab 16 of ~he truck 10.
The engine is preferably connected to and operates by the fuel contained in the fuel tank 22 so that the heat for the heating panel 24 and the energy for moving the truck 10 has the same source. l It has been found that the asphalc repair vehicle ~0 -of the present invention, because it employs a luminous wall heater, is much more eEficienL than other asphalt repair equip-men-t now in use. The vehicle makes it possible for a reduced number of crew rnen to be used to repair asphalt roadways and repairs can be accornplished throughout the year even in those areas which experience harsh winters~
Although a nu~ber of ad~ancages of the present :~2~
No. 10 invention have been des~ribed, ~any other advan~ages will become apparen~ to those skilled in the art tQ which the invention pertains.
.
/o --_j
Back~round of ~he Invention I. Field of ~he Invèntion ._ _ __ The present invention relates to equipment for repair-ing asphal, road sur~aces and the like and more particularly to~ truck which can be moved along the surface of the asphalt surface to be repaired and which includes a radian-t heating panel and means for manipula~ir,g -~he heating panel so that the heat can be precisely directed to the area ~o be repairea without requiring movement of the truck.
II. Descriplion of-the Prior Art The conventional method for repairing pot holes and the like in asphalt roadways or other asphalt suraces has been to remove a por~ion of the asphalt around the damaged area by an air hammer down to the depth of the damage and then fill the removed area with new asphalt.
This method of xepair has several disadvantages. The method is time-consuming and requires expensive e~uipment. The joint formed between the new asphalt and the existing asphalt is weak and in cold climates such repairs can o~ly be made du~ing part of the year.
Summary of the Pxesent Invention The present invention provides a truck intended for use in patching asphalt or the like by a method whi~h eliminaies many of the problems inherent in the method employed in the past. The truck is self-contained, thereby reduGing the equipment needed to do the patching and the number of crew members required.
Unlike equipment used -~o practice the method here-~ofore employed to repair asphalt, the truck of the present invention is provided with means ~o be used in a method in which the asphalt to be repaired is heated and new asphalt is used -to ~3~5 . 2 fill the repair. A luminous radiant heacing panel heats Ihe asphal-c surface and causes hea. to penetrace inco the incerior of the exiscing asphalc roadwa~ so thar it can be scarified by hand. The new permanenr -cype asphal~ is then aelivered to the repair from the ~eàced s-torage compartmenc. This process causes the new and old asphalc to be bonded logecher to form a homogeneous repair.
The truck of ~he present in~ention includes a heated storage compartmen-c or hopper in which the already heated new asphalt can be kepr a-t the proper temperature or the cold permanent asphalt can be reheaied to the proper working temperacure until ihey are used and a hydraulic auger delivers the asphalc from the hopper to the point of use. A lift or hoist mechanis~ moun~s a roller to the truck so that ic can be readily removed co compac~ the asphalt to form a smooth sur-face.
Remote control means are provided to operate the vehicle so thac a crew member, utilizing a hand-hela control panel, can control the truck from outside che vehicle in a posilion where he can clearly see the area to be repaired.
The radiant heacing panel which is used to heat the surface and the interior of the asphalt to be repaired is of the type heretofore commonly used in industrial furnaces or the like and of the general type shown in U.S. Patent Nos. ~
25 2,828,813-and 3,008,513. An air-gas mixture is delivered -chrough firebricks carried in a frame co provide what is commonly called a luminous wall. Such hea-ters have been found L_ co be very efficient and che type used by Applican-c~ for insrance, is capable of deliveri.ng up -~o 1750 in just one 30 minute arld to penetrate the asphalt with over 60,000 B.T. U.s per square foot.
35i No. 3 Actempts have been made in che past to use such heaters for heating asphalt bu-t there have been aifficulties caused primarily by -the intense heat generated by such heacers~ If such heaters are kept over -the surface of the asphalt for a time sufficient to heat the interior of the asphalt to the desired temperature, the surface will ignite. This has no-t been a problem with inEra red heating systems because they do not produce the heat produced by luminous wall radiant heaters.
Such heaters, however, are inefficient and do not provide enough heat to heat the asphalt to the necessary depth.
Applicant has discovered that with luminous wall heaters it is necessary to provide a "soak time"; that is, a time to permit the heat to soak into the interior of the layer of asphalt. Wi~hout such a "soak time" i-t is impossible to heat the interior layer of the asphalt to the necessary tempera-ture to create the desired bonding without igniting the upper layer of the asphalt. There must be an interval between the times that the upper surface is subjected to heat ~rom the luminous wall to permit the hea-t to penetrate and raise the temperature of ~he interior of the asphalt. This is accomplished by manually turning the heating panels on and off until the heac penetrates to ihe proper depth.
In the trllck o~ the present invention this is accomplished b~ providing means to concrol the movement of the heating panel so that it can be precisely positioned with respect to the area to be repaired but moved away before the top surface ignites. Means are provided for mounting the C
luminous heating panel to the truck which permits the panel to ., be moved upwardt downward, back and forth, and rotationally.
.. .. ...
Description of the Drawin~s A better understanding of the present invention will be had upon reference to the following drawings in which like ~2~
llo. 4 reference numerals refer -to like parcs throughou~ the several views and in which:
Fig. 1 is a side perspeccive view of a cruck embodying -the presenc invencion;
Fig. 2 is a rear perspectîve ~iew iliustrating the truck of che presen~ invention in use;
Fig, 3 is a rear perspeciive view of che truck of the ~
presenc invention showing the heating panel in the ~ransporting -position ~h Fig. 4 is a fragmentary top plan view of ihe heating panel of the presenc invention;
Fig. 5 is a fragmentary side elevational ~iew illus-trating the heating panel of the presenc invention;
Fig. 6 is an elevational view of the heating panel of che present invention substantially as seen from the bottom of Fig. 4;
Fig. 7 is a top plan, partially diagramatic, ~iew of che heating panel of the present invention illustrating che manner in which che heating panel can be rotated, and;
20Fig. 8 is a fragmentary cross-sectional view of the heating panel of the present inv~ntion.
Detailed Description of a Préferred Embodiment of the Present Invention ~3 Now referring co the drawings for a detailed des-crip-tion of the present invencion, a vehicle or truck 10 is best shown in Figs. 1 and 3 as including front wheels 12 an rear wheels 14. The truck 10 includes a cab portion 16 for the driver and an engine compartment 18 (Fig. l? to house an in-ternal combustion engine (not shown) which is ~he prime mover for the truck 10.
Still referring -to Figs. 1 and 3, a hopper 20 is moun-ced near the rear of -rhe truck 10 and a fuel tank 22 is 4 ~
~2~3~
No. 5 mounced between che cab portion 16 and the hopper 20. A heat-ing panel 24, which will be described in greacer detail below, is moun-ted at che rear of che truck 10 and is movable becween tlle upper, transporcing posicion shown in Fig. 3 to the lower, 5 working posicion shown in Fig. 1. E
As best seen in Figs. 2 and 5, the truck 10 is pro-vided wich an auger delivery system, generally indicated at 26, to deliver asphalc from the hopper 20 to the rear of ~he heating panel 24.
The heacing panel 24 is of the radianc heater type which is commonly called a luminous wall. Wi-ch the exception of some modifications incorporated by the Applicant to re-cain the brick, such heating panels are most commonly ùsed in ~.
industrial furnaces and are shown in U.S. Patent Nos. 2,328,813 and 3,008,513. The heacing panel 24 is cons-trucced quite similarly to the furnaces shown in these patents and as best seen in Fig. 8 comprises a housing 30 defining a plurality of plenums 32a and 32b. The housing 30 carries firebrick 34 and is provided with a plurality of perforations 36 which provide 20 com~unication between the plenum 32 and the interior surfaces of the firebrick 34.
A gas-air mixture is supplied to inlets 37 to che plenums 32a and 32b from the fuel tank 22 and from a blower 38 (Fig. 3) by a conduit 29 and by connections shown schematically 25 at 42 and flows through the perforations 35 and the porous firebrick 34 to a firing face 40 at which the mixture burns to create a lumunous radiant heacing surface. _ Still referring to Fig. 8, plenums 32a and 32b are pre-ferably separaced by a wall 41, and the air-gas mixcure is separately provided to the plenums 32a and 32b by inlets 37 and is cGn~rolled by con~rols 43 so that a plurality of distinct ~235 No. 6 heating zones 44a and 44b (44e and 44d also in ~ig. 31 are pro-vided on ~he face 40 In -this eay each, or all, of che ~ones 44a, 44b, etc. can be fired ~o accommodate areas of different sizes requiring pacching. r Skirting 4~ is provided around the periphery of the hea-ting panel 24 to aid in retaining the heat in the work area.
The means for mouniing the heacing panel 24 to the vehicle 10 is shown in Fig~ 5 and comprises a frame member 46 -~o which ihe hea~ing panel 24 is atlached and means 47 ~or pivoially atcaching the frame membe~ 46 so thai che heacing panel 24 can be pivoted from the upper, transportiny position shown in Fig~ 3 to the lower, working position shown in Fig. 5.
A cylinder 48 moun~ed between the truck 10 and the frame member 46 and concrolled ~y a hydraulic system, shown schematically at 50, provides for control of the positioning of the heating panel 24.
Means are also provided to move the heating panel 24 in a horizontal sliding motion, and -this is shown in Fig. 6.
A sliding connection is provided between the frame member 46 and a support structure 51 carried by the heating member 24 by rollers 52 and a cylinder 54 (Fig. 2) can ~e actuated by a hydraulic syscem (not shown) co move the heating panel 24 in the direction Gf arrow 56 in Fig. 6 in a plane parallel to ihe ~
plane of the frame member 46. -The heating panel 24 is also mounted in a manner which permits rotational movement becween the frame member 46 and the heacing panel 24 about a ~ertical axis when the heating panel 24 is in the lower, working position. These means are shown in Figs 2, 6, 7 and 8 and comprise a plate member 58 mounced to the frame member 46 and having a cylindrical projection 60 which mates with a cylindrical socket 62 attached to -the housing 30 of heatiny panel 2~, so that the heating panel 24 rotates I
1235~35 No. 7 wilh respecc to ~ e pla ce mer,~er 58 and chus witl~ respecc to che frame member 46.
A cylinder 66 is mounted becween Ihe plate members 58 and 64 and is actuated by a hydraulic sys-cem (not shown) to S rocace che heating panel 24 wich respect co the frame member 46.
The various rotatlonal posicions of che heacing panel 24 are illustraced in Fig, 7 at various stages of excension of che cylinaer 66.
As best seen in Figs. 6 and 8, the arrangement of the cylindrical projeccion 60 and the cylindrical socket 62 is such thai movement of che heating panel 24 towara and away from the frame 46 in the direction of the arrow 68 is permitted. A
cyli~der Ç9 is ~rovided to produce movement of che heating panel 24 in the direction of the arrow 68 toward and away from the surface to be heated.
As can best be seen in Fig. 1, a lift 70 is provided on the side of -che truck 10 to permit the loading and unloading of a roller 72. To permit the roller 72 to be easily loaded onto and off the lift 75 a platform 74 is providea which is ro~atably mounted by means (not shown) to perml-t ~he platform 74 co be rotated co a position to receive the roller 72 or to permit che roller 72 to be remov~d from the lift 70 . A
cylinder 76 is provided to raise ana lower the lift 70. ~
Means, generally indicated at 78 in Fig. 2, are pro- -vided for remotely controlling the truck 10 and th~ positioning -of che heating panel 24, The means 78 permics an operator ~o move and to steer the truck 10 from outside the cab portion 16.
The hopper 20 is most clearly shown in Fig. 2 and comprises side walls 80, end walls 82, and a botcom 84 pre-ferably welded -toge~her to form a box for holding asphalt (not shotm). Doors 86 are mounted to the top o~ the hopper 20 and heating means 88 are carried in the bottom of th~ hopper 20 to ~3~35 ~ 8 maincain the asphalt in a heated condition ready for use. In addi.ion~ the hopper 20 has a double wa:Ll construction and is ~nsulated to improve heat retention.
The auger delivery syslem 26 extends between the bottom of the hopper 20 and a point adjacent the rear edge of the hea~-ing panel 24 and comprises a trough 92 and an auger 94 carried in a portion of the crough 92. As best seen in Fig. 4, the trough 92 includes an end porcion 96 hingedly connected to the trough 92 to permi-~ ~he end portion 96 co be ~olded up into a transporting position~
In use the iruck 10 is driven to an area where there is an asphal-t surface ~o be repaired with ~he heating panel 24 in the position shown in Fig. 3. The heating panel 24 is then pivo-ted downwardly to the position shown in Figs. 1, 2 and 4 close to and over the area to be repaired. The heating panel 24 is ired using only those zones 44a, 44b, 44c, 44d (Fig. 3) necessary to heat che area around the asphalt to be repaired.
The heating panel 24 can be mo~ed horizontally by actuating cylinder 54, up and down by actuating the cylinder 69, and rocationally by actuating the cylinder 66 to provide the desired heat throughout the layer of asphalt without moving the truck 10.
The manipulation o~ the heating panel 24 and even of the truck 10 can be accomplished from outside the cab portion 16 by a single operator using the remo-te con-trol 78.
The heacing panel 24, because it is constructea as a luminous wall, generates more heat than conventional infra red heaters so that care has to be taken not to ignite the upper layer of the asphalt. This is accomplish~dhaving the operator, utilizing the control panel 78, cycle the panel 24 on and off. I-c is essential that means be provided to permit the heat to soak into -the asphalt wi-thout igniting the upper 123~ 5 No. 9 layer of che asphalt because chis has been found ~o be the key -to permiLLing the use o~ radiant luminous wall heaLers to practice the r~nner of repairing asphal-c described herein~
After the asphalt has been heated ~o the proper 5 temperature -throughout ~he layer to be repaired, the heating r panel 24 is moved out of the way .o permit the workers ~o -properly scarify the heated area~ The auger 94 is then actuated ¦
to deliver asphalt from the hopper 20 to the area being 3 repaired. The asphalt being delivered has been main~ained at 10 an elevaked tempexature in ~he hopper 20 by the heaters 88 and hen it is delivered to the spot to be repaired ii bonds to the hea~ed scarifiea asphalt around the pot hole or ~he like being repaired.
The lift 70 then can be lowered to permit the roller 15 72 co be removed from the truck 10 and used ~o compact and smooth the repaired surface.
The remote control 78 is conneoted to the engine and to the steering mechanism of the truck 10 by conventional means so that the truck 10 as well as the heating panel 24 can be con-20 trolled from ouiside of the cab 16 of ~he truck 10.
The engine is preferably connected to and operates by the fuel contained in the fuel tank 22 so that the heat for the heating panel 24 and the energy for moving the truck 10 has the same source. l It has been found that the asphalc repair vehicle ~0 -of the present invention, because it employs a luminous wall heater, is much more eEficienL than other asphalt repair equip-men-t now in use. The vehicle makes it possible for a reduced number of crew rnen to be used to repair asphalt roadways and repairs can be accornplished throughout the year even in those areas which experience harsh winters~
Although a nu~ber of ad~ancages of the present :~2~
No. 10 invention have been des~ribed, ~any other advan~ages will become apparen~ to those skilled in the art tQ which the invention pertains.
.
/o --_j
Claims (18)
1. An apparatus for patching asphalt or the like comprising:
a frame and means mounted to said frame for moving said frame above and across the surface of the asphalt to be patched;
heat generating means mounted to said frame in a position to heat said asphalt as said frame is moved thereacross;
said heat generating means comprising a luminous wall-type radiant heating panel having a substantially planar surface and means positioning said planar surface adjacent to and above said asphalt surface;
said luminous wall heating panel including a plurality of porous firebrick; and said firebrick having no supplemental, unrestricted gas distribution holes formed therein.
a frame and means mounted to said frame for moving said frame above and across the surface of the asphalt to be patched;
heat generating means mounted to said frame in a position to heat said asphalt as said frame is moved thereacross;
said heat generating means comprising a luminous wall-type radiant heating panel having a substantially planar surface and means positioning said planar surface adjacent to and above said asphalt surface;
said luminous wall heating panel including a plurality of porous firebrick; and said firebrick having no supplemental, unrestricted gas distribution holes formed therein.
2. The apparatus as defined in claim 1 and including a vehicle, said frame being mounted to said vehicle.
3. The invention as defined in claim 1 and in which said vehicle has a front and rear, and including means for mounting said heating panel at the rear of said vehicle; and said luminous wall heating panel has a rigid non-flexible construction and further includes an inner, perforated plate member positioned above said firebrick, and an outermost housing member surroundingly connected to peripheral edges of said plate member.
4. The invention as defined in claim 3 and in which said last mentioned mounting means include means for raising and lowering said heating panel
5. The invention as defined in claim 4 and in which said last mentioned mounting means include means for rotating said heating panel about a vertical axis.
6. The invention as defined in claim 5 and in which said last mentioned mounting means include means for moving said heating panel in a horizontal plane.
7. The invention as defined in claim 2 and including means for remotely controlling the movement of said vehicle.
8. The invention as defined in claim 2 and including means for detachably mounting a roller to said vehicle.
9. The invention as defined in claim 8 and in which said last mentioned means includes a lift member having a platform for receiving said roller.
10. The invention as defined in claim 9 and including means for mounting said platform to permit rotation of said platform.
11. The invention as defined in claim 2 and including a heated asphalt storage and dispensing hopper carried by said vehicle.
12. The invention as defined in claim 2 and in which said vehicle comprises a truck, said truck including an internal combustion engine providing the prime mover for said truck, fuel tanks carried by said truck for providing fuel for said internal combustion engine and means connecting said fuel tanks to said heat generating means whereby said fuel from said fuel tanks is used to supply said heat generating means.
13. The invention as defined in claim 1 and in which said heating panel is provided with a plurality of individual zones, and means for separately controlling the heat in each of said zones during a heating operation of the apparatus.
14. A truck having means for patching asphalt or the like comprising:
said truck having rear wheels and front wheels;
a luminous wall-type radiant heating panel carried by said truck rearwardly of said rear wheels, said radiant heating panel having a heat emitting planar surface disposed adjacent the surface of the asphalt to be patched;
said luminous wall heating panel including a plurality of porous firebrick; and said firebrick having no supplemental, unrestricted gas distribution holes formed therein.
said truck having rear wheels and front wheels;
a luminous wall-type radiant heating panel carried by said truck rearwardly of said rear wheels, said radiant heating panel having a heat emitting planar surface disposed adjacent the surface of the asphalt to be patched;
said luminous wall heating panel including a plurality of porous firebrick; and said firebrick having no supplemental, unrestricted gas distribution holes formed therein.
15. The invention as defined in claim 14 and including means for mounting said heating panel to permit raising and lowering thereof; and said luminous wall has a rigid, non-flexible construction and further includes an inner, perforated plate member positioned above said firebrick, and an outermost housing member surroundingly connected to peripheral edges of said plate member.
16. The invention as defined in claim 15 and including means for mounting said heating panel to permit horizontal sliding movement thereof.
17. The invention as defined in claim 16 and including means for mounting said heating panel to permit rotational movement of said heating panel about a vertical axis.
18. The invention as defined in claim 17 and in which said heating panel is provided with a plurality of individual zones and means for individually controlling the heat in each of said zones during a heating operation of said truck.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60501784A | 1984-04-27 | 1984-04-27 | |
| US605,017 | 1984-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1235935A true CA1235935A (en) | 1988-05-03 |
Family
ID=24421927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000473109A Expired CA1235935A (en) | 1984-04-27 | 1985-01-29 | Asphalt repair truck |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1235935A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012016331A1 (en) * | 2010-08-06 | 2012-02-09 | Urban Surface Solutions Inc. | Heating device |
| WO2012055019A1 (en) * | 2010-10-29 | 2012-05-03 | Urban Surface Solutions Inc. | Jet heating device |
| US8556536B2 (en) | 2009-01-02 | 2013-10-15 | Heatwurx, Inc. | Asphalt repair system and method |
| US8562247B2 (en) | 2009-01-02 | 2013-10-22 | Heatwurx, Inc. | Asphalt repair system and method |
| USD700633S1 (en) | 2013-07-26 | 2014-03-04 | Heatwurx, Inc. | Asphalt repair device |
| US8801325B1 (en) | 2013-02-26 | 2014-08-12 | Heatwurx, Inc. | System and method for controlling an asphalt repair apparatus |
| US9416499B2 (en) | 2009-12-31 | 2016-08-16 | Heatwurx, Inc. | System and method for sensing and managing pothole location and pothole characteristics |
-
1985
- 1985-01-29 CA CA000473109A patent/CA1235935A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8556536B2 (en) | 2009-01-02 | 2013-10-15 | Heatwurx, Inc. | Asphalt repair system and method |
| US8562247B2 (en) | 2009-01-02 | 2013-10-22 | Heatwurx, Inc. | Asphalt repair system and method |
| US8714871B2 (en) | 2009-01-02 | 2014-05-06 | Heatwurx, Inc. | Asphalt repair system and method |
| US9022686B2 (en) | 2009-12-31 | 2015-05-05 | Heatwurx, Inc. | System and method for controlling an asphalt repair apparatus |
| US9416499B2 (en) | 2009-12-31 | 2016-08-16 | Heatwurx, Inc. | System and method for sensing and managing pothole location and pothole characteristics |
| WO2012016331A1 (en) * | 2010-08-06 | 2012-02-09 | Urban Surface Solutions Inc. | Heating device |
| WO2012055019A1 (en) * | 2010-10-29 | 2012-05-03 | Urban Surface Solutions Inc. | Jet heating device |
| US8801325B1 (en) | 2013-02-26 | 2014-08-12 | Heatwurx, Inc. | System and method for controlling an asphalt repair apparatus |
| USD700633S1 (en) | 2013-07-26 | 2014-03-04 | Heatwurx, Inc. | Asphalt repair device |
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