JP2004211546A - Road surface repairing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent plugging by keeping an emulsion supply system in a clean state. <P>SOLUTION: This road surface repairing apparatus is provided with an emulsion tank 1 for storing an emulsion A; an aggregate hopper for storing aggregate; an injection nozzle 3 for injecting the emulsion A and/or the aggregate supplied from them; the emulsion supply system 4 and an aggregate supply system 5 for supplying the emulsion A in the emulsion tank 1 and the aggregate in the aggregate hopper respectively independently to the injection nozzle 3; and a controller for controlling the emulsion supply system 4 and the aggregate supply system 5. The injection nozzle 3 is constituted to unite or integrate the respective tip parts of a pipe for feeding the emulsion A and a pipe for feeding the aggregate. The emulsion supply system 4 is provided with an emulsion circulating circuit 41 for circulating the emulsion A taken in from the emulsion tank 1, to the emulsion tank 1 between the emulsion tank 1 and the injection nozzle 3, and a cleaning means 42 for cleaning the emulsion circulating circuit 41 by selectively supplying either one of air and cleaning oil to the emulsion circulating circuit 41. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface repair device for repairing relatively small-scale damage that has occurred on a pavement surface of a road.

  Damage such as, for example, potholes and cracks may occur on the pavement surface of the road. When such relatively small damage occurs, urgent repair is required due to problems such as management defects, and it is necessary to repair as soon as possible. As a repair method, in the prior art, after surrounding a part of the road with a safety facility so that it cannot be passed, the damaged part of the pavement road surface and its surroundings are removed and cleaned, and the emulsion is applied to the repaired part. After that, the repair site is filled with asphalt mixture, laid, compacted, cleaned, and finally the safety facilities are removed.

However, the conventional repair method has the following problems.
That is, in the conventional repair method, as described above, since all the workers mainly work manually, even a small-scale repair work requires not only a large number of workers but also a long working time. was there. In addition, since the asphalt mixture to be used is arranged with a margin, there is usually a problem that a residue is left, which has to be discarded, and the material is wasted accordingly.
In addition, the scale of safety facilities and the like is large for small-scale construction, and the work time is long, so that traffic congestion of general traffic vehicles is likely to occur.

  The present invention has been made in view of the above-described problems of the related art, and has as its object to provide a road surface repair apparatus that can reliably perform a relatively small-scale repair work in a short time.

In order to solve the above problems, the present invention employs the following solutions.
According to the first aspect of the present invention, there is provided a road surface repair apparatus for repairing relatively small-scale damage generated on a pavement road surface, comprising: an emulsion tank for storing emulsion; an aggregate hopper for storing aggregate; A spray nozzle for spraying the prepared emulsion and / or aggregate, an emulsion supply system and an aggregate supply system for independently supplying the emulsion in the emulsion tank and the aggregate in the aggregate hopper to the spray nozzle, Equipped with a controller for controlling an emulsion supply system and an aggregate supply system, the injection nozzle has a configuration in which a tip portion of a pipe for sending emulsion and a tip portion of a pipe for sending aggregate are integrated or integrated, A circulation circuit for circulating the emulsion taken from the emulsion tank between the emulsion tank and the jet nozzle to the emulsion tank; and It is characterized in that to equip a washing means for washing the circulation circuit by supplying selected one by switching.

  According to a second aspect of the present invention, in the road surface repair apparatus according to the first aspect, when the emulsion is not ejected, an air circuit is provided for preventing clogging of the ejecting nozzle by flowing air to the ejecting nozzle. It is characterized by the following.

  According to the third aspect of the present invention, in the road surface repair apparatus according to the first or second aspect, the aggregate supply system includes a plurality of aggregate hoppers, and switches a plurality of types of aggregates stored in the aggregate hoppers. Thus, the nozzles can be supplied to the injection nozzles simultaneously or independently.

  According to the first aspect of the present invention, the air remaining in the emulsion supply system can be returned to the emulsion tank by supplying air to the circulation circuit after the repair work is interrupted or terminated, thereby preventing waste of the emulsion. Thus, cleaning of the emulsion supply system can be performed. In addition, by switching from air to cleaning oil and circulating the emulsion supply system circulation circuit with this cleaning oil, it is possible to remove all the emulsion adhering to the inner wall of the emulsion supply system that could not be removed by air. This makes it possible to keep the emulsion supply system which is liable to be clogged in a clean state and prevent clogging before it occurs.

  Further, according to the second aspect of the present invention, since air is supplied to the ejection nozzle, it is possible to prevent a situation in which the ejection nozzle becomes clogged with emulsion and the ejection nozzle cannot be used.

  According to the third aspect of the invention, different types of aggregate can be arbitrarily selected, and one or several types of the aggregates can be injected from the injection nozzle to the repair location. Repair work can be performed using various aggregates.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The road surface repair apparatus according to the present invention is intended for damage generated on a relatively small-sized pavement road surface such as a pothole, and sprays the emulsion A heated in advance to a desired temperature onto the damaged area. The emulsion A and the aggregate B can be mixed and sprayed as a repair mixture (see FIGS. 4 and 5).
In this embodiment, as shown in FIGS. 1 to 3, an emulsion tank 1, an aggregate hopper 2, and an emulsion A or an aggregate B pumped from the emulsion tank 1 or an aggregate B are mixed. The nozzle 3 is provided with an emulsion supply system 4 and an aggregate supply system 5 for independently feeding the emulsion A in the emulsion tank 1 and the aggregate B in the aggregate hopper 2 to the injection nozzle 3 respectively. . In addition, the injection nozzle 3 here is not limited to a tubular one having a tapered tip, but is a broad concept including a tube simply cut off a tube and a tubular one with a slightly widened tip. In short, it means that the emulsion A and the aggregate B can be sprayed.

The emulsion tank 1 literally stores the emulsion, and is installed at the front of the bed of the vehicle 100 in this example. As shown in FIG. 4, the emulsion tank 1 is provided with a charging port 1a at an upper portion, from which asphalt emulsion or the like is charged and stored. In addition, as an emulsion, an asphalt emulsion is generally used, but a resin emulsion or another liquid having a binding property may be used.
Further, the emulsion tank 1 has a heating mechanism for heating the emulsion therein to a predetermined temperature. The heating mechanism is provided to lower the viscosity of the emulsion or to promote decomposition. Therefore, the heating mechanism can be omitted if an emulsion having such properties is appropriately selected even at room temperature. As shown in FIG. 4, the heating mechanism includes a storage tank 6 in which the emulsion tank 1 is stored, water 7 stored therein, and a heater 8 having a temperature control function for heating the water 7. In addition, by heating the water with the heater 8, the emulsion in the emulsion tank 1 is maintained at a usable temperature. Further, the emulsion tank 1 is configured such that the amount of emulsion stored therein is detected by detecting means (not shown) so that the emulsion amount can be monitored.

  The aggregate hopper 2 is installed at the rear of the vehicle bed as shown in FIGS. As shown in FIG. 5, the aggregate hopper 2 is provided with a feeder 9 having spiral wings at a lower portion, and the feeder 9 is driven by a motor 10 so that the aggregate B in the hopper is aggregated. It can be sent to the material supply system 5. A lid 2a is mounted on the upper part of the aggregate hopper 2 so as to be opened and closed by an air damper 2b.

  As shown in FIGS. 1 and 2, the injection nozzle 3 is attached to a distal end portion of an arm 60 described later. Further, as shown in FIG. 4, the injection nozzle 3 is formed by integrating or integrating a pipe 3a for sending aggregate downstream of the aggregate supply system 5 and a pipe 4a for sending emulsion in the emulsion supply system 4. . The term “coalescence” as used herein refers to a structure that can be separated while being integrated, and the term “integration” refers to a structure that is literally inseparable. Specifically, a ring-shaped emulsion storage chamber 4b is formed near the tip of the outer peripheral portion of the pipe 3a for sending the aggregate, and the emulsion storage chamber 4b is connected to the pipe 4a for sending the emulsion. A plurality of emulsion injection openings 3c are formed in an inner peripheral surface 3aa of a pipe 3a for sending the aggregate, which defines a chamber 4b. In the injection nozzle 3, the emulsion B is mixed with the emulsion A by guiding the emulsion from the plurality of (in this example, three surroundings) openings 3c to the aggregate fed through the pipe 3a. Thus, the repair mixture is generated, and the repair mixture is injected downward from the discharge port at the bottom of the injection nozzle 3. The opening 3c is not limited to a circular hole as shown in FIG. 4, but may be a slit.

  On the other hand, as shown in FIG. 4, the emulsion supply system 4 has a pneumatic three-way valve 12, a filter 13, a binder pump 15 with a motor 14, a three-way valve 16, and a switching valve 17 at an intermediate position of the pipe 11. The upstream end of the pipe 11 is connected to the bottom of the emulsion tank 1 through the storage tank 6 of the heating mechanism, and the downstream end is connected to the peripheral side of the injection nozzle 3. Then, when the binder pump 15 is driven by the motor 14, the emulsion A in the emulsion tank 1 passes through the three-way valve 12, the filter 13, the binder pump 15, the three-way valve 16, the switching valve 17, and the merging section 29, and ejects from the jet nozzle. 3 to be fed. At this time, the passage leading to the injection nozzle 3 is opened in the switching valve 17 by the driving of the air cylinder 18. Air is supplied from a compressor 19 to an air cylinder 18 for switching the switching valve 17 via an air tank 20 and a branch portion 28, and the air cylinder 18 is operated in accordance with a command from means (not shown). The compressor 19 and the generator 36 are driven by an engine 37.

  Further, the emulsion supply system 4 has an emulsion circulation circuit 41 for circulating the emulsion taken from the emulsion tank 1 when the emulsion is not used, that is, when the pressure feeding to the injection nozzle 3 is stopped. In the emulsion circulation circuit 41, one end 21a of the pipe 21 is connected to the emulsion tank 1, the other end 21b is connected to the upstream of the switching valve 17, and the check valve 22 and the three-way valve 23 and a relief valve 24. When the switching valve 17 is closed by the air cylinder 18 when the binder pump 15 is driven, the emulsion pressure-fed to the upstream portion flows into the other end 21b of the pipe 21 as shown by the arrow, and the relief valve 24, The emulsion is returned to the emulsion tank 1 by reaching the one end 21a via the three-way valve 23 and the check valve 22. This is because the emulsion in the emulsion tank 1 is circulated so that the emulsion does not solidify and can be used immediately.

When the emulsion is not supplied from the injection nozzle 3 by the emulsion supply system 4, an air circuit 43 for preventing clogging is provided in order to prevent clogging of the injection nozzle 3, particularly the opening 3 c. Air is supplied to the opening 3c of the nozzle 3 constantly or intermittently.
Here, the air circuit 43 for preventing clogging includes the compressor 19, the air tank 20, the cleaning valve 26, the check valve 27, the junction 29, and the pipe 25 connecting them.
The air circuit 43 for preventing clogging can prevent a situation in which the emulsion is clogged in the ejection nozzle 3 and the ejection nozzle 3 cannot be used.

Further, the emulsion circulation circuit 41 has a cleaning means 42 for cleaning not only the inside of the piping but also the injection nozzle 3. The cleaning means 42 utilizes the compressor 19 and the air tank 20, and has a first pipe 25 and a second pipe 30.
The first pipe 25 includes a cleaning valve 26 and a check valve 27, one end of which is connected to the branch part 28 and the other end of which is connected to the junction part 29 so that air from the air tank 20 can be sent to the injection nozzle 3. I have to. The second pipe 30 has a check valve 31 and a three-way valve 32, one end of which is connected to the air tank 20 and the other end of which is connected to the bottom of the cleaning oil tank 33. The three-way valve 32 and the three-way valve 12 are connected by a pipe 34, and the upper part of the washing oil tank 33 and the three-way valve 23 of the emulsion circulation circuit 41 are also connected by a pipe 35.

Then, the air from the air tank 20 is guided to the three-way valve 32, the pipe 34, the three-way valve 12, the filter 13, and the binder pump 15, whereby the emulsion in the emulsion supply system 4 is sent to the emulsion tank 1 via the emulsion circulation circuit 41. to recover.
Next, the cleaning oil in the cleaning oil tank 33 is similarly supplied to the three-way valve 32, the pipe 34, the three-way valve 12, the filter 13, the three-way valve 16, the pipe 21, the branch portion 28a, the relief valve 24, the three-way valve 23, and the pipe 35. The emulsion adhering to the pipe is washed by circulating through the pipe. Thereafter, by switching the three-way valve 32, air is pumped from the air tank 20 into the pipe including the three-way valve 32, the pipe 34, the three-way valve 12, the filter 13, the binder pump 15, the pipe 21, the relief valve 24, and the pipe 35. Thereby, the cleaning oil remaining in the pipe is collected in the cleaning oil tank 33. The cleaning of the inside of the pipe is completed by the above series of operations.

  On the other hand, in the aggregate supply system 5, as shown in FIG. 5, an intermediate position of the pipe 51 is connected to a three-way valve 53 a provided at a downstream portion of the silencer 52, and both ends of the pipe 51 are connected to one another, As shown in FIG. 4, it is connected to the upper part of the injection nozzle 3. A blower 53 driven by an engine 54 is connected to an upstream portion of the silencer 52. In the pipe 51, the feeder 9 of the aggregate hopper 2 is connected at an intermediate position of one of the pipes between the connecting portion 51a and the three-way valve 53a, and the feeder 9 is driven by the motor 10 as described above. The aggregate B in the aggregate hopper 2 is supplied to the pipe 51. Therefore, the aggregate B in the aggregate hopper 2 can be fed to the injection nozzle 3 by air from the blower 53.

  A sand hopper 58 having a rotary feeder 57 is connected to an intermediate position of the pipe 51 different from the aggregate hopper 2 side. The sand hopper 58 stores dry sand since the aggregate in the hopper 2 is mainly composed of pebbles. By switching the three-way valve 53a, it is possible to selectively feed the aggregate B from the aggregate hopper 2 and the sand C from the sand hopper 58. The sand hopper 58 has a cover 59 mounted thereon so as to be openable and closable similarly to the aggregate hopper 2. As shown in FIGS. 1 and 2, the sand hopper 58 is located between the emulsion tank 1 and the aggregate hopper 2 on the carrier of the vehicle 100. Are located. The sand hopper 58 and the aggregate hopper 2 are also configured to detect the amount of dry sand and aggregate stored therein.

Next, the arm 60 to which the injection nozzle 3 is attached at the tip will be described with reference to FIGS.
That is, the main arm 61A is composed of a first arm 61 attached to the front of the vehicle so as to be rotatable along the horizontal direction and a second arm 62 attached to the first arm 61 and extending forward from the first arm 61. A third arm 63 serving as a sub arm is rotatably attached to the second arm 62 constituting the main arm 61A along the horizontal direction.
Specifically, as shown in FIG. 1 to FIG. 2, FIG. 6 and FIG. 7, the first arm 61 has a base attached to a vertical shaft 64 attached to a front part of the vehicle 100 and a base thereof. The rod of the cylinder 65 is connected at an intermediate position on the side (see FIG. 1). The cylinder 65 has a cylinder head fixed to the front part of the vehicle, and supports the entire arm 60 in cooperation with a vertical shaft 64 and a cylinder 67 described later. Further, the first arm 61 is provided with a horizontal pin mechanism 66 at an intermediate position of a connection portion with the cylinder 65. The horizontal pin mechanism 66 is not shown in detail, but is configured such that the distal end side can be erected with respect to the base side of the first arm 61 as shown by a chain line in FIGS. 2 and 7. I take it. Further, a cylinder 67 is pivotally mounted at a front portion of the vehicle at a position slightly forward of the vertical shaft 64 via a bracket (not shown) or the like, and a rod of the cylinder 67 is connected between the first arm 61 and the cylinder 68 fixed thereto. As shown in FIG. 7, the first arm 61 is rotated further about the horizontal pin mechanism 66 as a fulcrum as the rod of the cylinder 67 advances and retreats as shown in FIG. The cylinder 68 will be described later.
Therefore, the first arm 61 rotates in the horizontal direction around the vertical axis 64 as the rod of the cylinder 65 advances and retracts, and rotates in the vertical direction around the horizontal pin mechanism 66 as the fulcrum as the rod in the cylinder 67 advances and retracts. , The horizontal pin mechanism 66 as a fulcrum.

The second arm 62 is housed in the first arm 61, and the rod of the cylinder 68 is connected to a portion protruding from the tip of the first arm 61. It extends or is stored in the first arm 61. The cylinder 68 is fixed to the bottom of the first arm 61 on the base end side.
The third arm 63 has the injection nozzle 3 attached to the front end thereof, is connected to the tip of the second arm 62 via a connection vertical shaft 69, and is driven by the cylinder 70 with the connection vertical shaft 69 as a fulcrum. As shown by a chain line in FIGS. 1 and 6, the rotation is performed in an appropriate range in the horizontal direction. The cylinder 70 is installed at the tip of the second arm 62.
Therefore, at the time of work, the length and angle of the first arm 61 to the third arm 63 are adjusted, so that the injection nozzle 3 can be positioned at the repair location.
At the tip of the third arm 63, a compaction device 71 and a leveling device 72 arranged near the injection nozzle 3 are mounted. Although not shown, the compaction device 71 and the leveling device 72 Necessary drive sources are connected.
Further, a lighting device 73 is mounted on a cone bar 74 described later for construction at night or the like.

Therefore, although the road surface repair apparatus of the embodiment is not shown, the emulsion tank 1, the heating mechanisms 6 to 8, the emulsion supply system 4, the circulation means of the emulsion supply system 4, the aggregate hopper 2, the aggregate supply system 5, A controller (not shown) for controlling the arm 60, the compacting device 71, the leveling device 72, the lighting device 73 and the like is also provided.
Furthermore, a safety mechanism is formed at the front of the vehicle. In this safety mechanism, a cone bar 74 having a desired length is attached to poles 75 provided on both sides of a front portion of a vehicle by a worker at the time of construction to prevent vehicles and pedestrians from entering. In use, the cone bar 74 is configured to fall sideways as shown in FIGS. 1 and 2, and is also configured to be detachable from the pole 75. The vehicle 100 is also equipped with a warning light 101 for displaying that construction is underway, and a sign 102 for notifying the display of "under construction" by lighting.

Next, a road surface repair method using the road surface repair apparatus of the embodiment will be described.
At the time of construction, a safety facility is first created by displaying the warning light 101 and the sign 102 of the construction or setting the cone bar 74. In this case, if the warning light 101 and the sign 102 originally provided in the vehicle 100 are turned on, it is possible to easily and reliably notify the surroundings of the construction. Also, when the vehicle of the authorities is stopped around the repair area and the parking light is turned on, the passengers of other vehicles will notice that the vehicle is under construction as described above, so the vehicle will stop on the pavement surface Just doing so can alert not only passengers of other vehicles but also passers-by. In addition, if the cone bar 74 is previously loaded in the vehicle 100 as a set of devices, the cone bar 74 can be easily installed because it can be taken out of the vehicle and set. Therefore, as compared with the related art in which a safety facility is constructed by transporting parts one by one from a blank state, the safety facility can be easily created and can be quickly performed.

Next, the arm 60 is extended, the injection nozzle 3 attached to the arm 60 is aligned with the repair location, and air is blown out of the injection nozzle 3 in that state to clean the repair location (FIG. 8A). The emulsion A in the emulsion tank 1 is pressure-fed by the emulsion supply system 4 through the injection nozzle 3, and the emulsion is sprayed on the repaired portion (FIG. 8 (b)). Subsequently, the emulsion and the aggregate are blown out from the injection nozzle 3 (FIG. 8C). That is, when the operator operates the controller, the emulsion A in the emulsion tank 1 is fed to the injection nozzle 3 by the emulsion supply system 4 and the aggregate B in the aggregate tank 2 is simultaneously supplied to the aggregate supply system 5. As a result, the repair mixture is generated by mixing the aggregate B and the emulsion A inside the spray nozzle 3, and the repair mixture is sprayed from the spray nozzle 3 to the repair location. Further, in the spraying process of the repair mixture, when the operator operates the arm 60, the repair nozzle can be sprayed over the repair portion by scanning the spray nozzle 3 in a staggered manner with respect to the repair portion. .
Therefore, as compared with the related art, not only can the working time be significantly reduced, but also the number of workers can be reduced.

Then, when the spraying of the repair mixture is completed, the repaired portion is leveled by the leveling device 72 attached to the arm 60, and then the sand stored in the sand hopper 58 is further applied to the sprayed surface. It sprays from the injection nozzle 3 (FIG. 8 (d)). Thereafter, surface treatment such as compaction is performed by a compaction device 71 mounted on the arm 60. In this case, the worker does not have to work each time.
After such processing, the repair work is completed by cleaning the repair surface, removing the safety facility, turning off the sign 102, and clearing the cone bar 74.

As described above, in the road surface repair apparatus according to the embodiment, the injection nozzle 3 includes the emulsion A pumped from the emulsion tank 1 by the emulsion supply system 4 and the bone pumped from the aggregate hopper 2 by the aggregate supply system 5. Since the material B was mixed and sprayed as a repair material, there is no need for a person to carry the repair material, which is an asphalt mixture, to the repair location and fill it into the repair location, as in the prior art. Therefore, the number of workers can be reduced and the working time can be shortened accordingly. As a result, relatively small-scale repair work can be reliably performed in a short time.
In addition, since the emulsion A and the aggregate B are mixed and sprayed inside the spray nozzle 3, it is not necessary to arrange an extra asphalt mixture as in the prior art, so that the surplus asphalt mixture is discarded. And a more economical and efficient use of the material can be obtained.

The apparatus for repairing a road surface according to the embodiment repairs the emulsion by mixing the emulsion tank 1 storing the emulsion A, the aggregate hopper 2 storing the aggregate B, and the emulsion A and the aggregate B pumped from these. And an emulsion supply system 4 and an aggregate supply system 5 for independently feeding the emulsion A in the emulsion tank 1 and the aggregate B in the aggregate hopper 2 to the injection nozzle 3, respectively. With this configuration, the above-mentioned repair method can be performed accurately. In addition, since the emulsion tank 1 has a heating mechanism for heating the emulsion A to a predetermined temperature at which the emulsion A can be used, the emulsion can be kept ready for use at any time.
The emulsion supply system 4 includes an emulsion circulation circuit 41 for circulating the emulsion A taken from the emulsion tank 1 between the emulsion tank 1 and the injection nozzle 3 to the emulsion tank 1, and an air tank 20 for the emulsion circulation circuit 41. The cleaning means 42 is provided for cleaning the emulsion circulation circuit 41 by selectively supplying either the air in the tank or the cleaning oil in the cleaning oil tank 33 by switching the three-way valve 32. After the interruption or termination, the emulsion A remaining in the emulsion supply system 4 can be returned to the emulsion tank 1 by feeding air to the emulsion circulation circuit 41, so that the emulsion A is not wasted and the emulsion supply system 4 Can be cleaned, and if the air is switched to the cleaning oil, and the emulsion circulation circuit 41 of the emulsion supply system 4 is circulated with the cleaning oil, the cleaning oil cannot be removed. Also can be removed everything emulsion adhering to the inner wall of the emulsion supply system 4 Tsu, originally keeping prone emulsion supply system 4 of the clogging in a clean state, it is possible to prevent the clogging from occurring.

When the emulsion A is not ejected, air is supplied to the ejection nozzle 3 and an air circuit 43 for preventing clogging of the ejection nozzle 3 is provided. By flowing air through the opening 3c of the injection nozzle 3, it is possible to prevent a situation in which the emulsion is clogged in the injection nozzle 3 and the injection nozzle 3 cannot be used.
Further, the aggregate supply system 5 includes a plurality of aggregate hoppers 2 and 58, and the plurality of types of aggregates stored in the aggregate hoppers 2 and 58 are simultaneously or independently switched by switching the three-way valve 53a. Since it is configured so that it can be supplied to the injection nozzle 3, different types of aggregate can be arbitrarily selected, and one or several types of the aggregate can be injected from the injection nozzle 3 to the repair location, and the most suitable for the condition of the repair location Repair work can be performed using various aggregates.
Further, since the above-mentioned road surface repair device is mounted on the vehicle as a complete device, it is possible to quickly move to the repair site with the complete device, and therefore, it is necessary to reliably execute a request to repair as quickly as possible. Can be done.

  In the illustrated embodiment, an example is shown in which one sand hopper 58 is used to store the dry sand C in addition to the aggregate hopper 2; However, since the grades differ depending on the size, an aggregate hopper 80 for storing different types of stones is provided downstream of the aggregate hopper 2 of the pipe 51 as shown by a two-dot chain line in FIG. The different types of aggregates in the aggregate hoppers 2 and 80 and the sand hopper 58 may be switched to be supplied to the injection nozzle 3 simultaneously or independently by switching. Further, the number of aggregate hoppers provided in the pipe 51 is not limited to two, and may be three or more.

It is a top view showing one embodiment of a road surface repair device of the present invention. FIG. FIG. 3 is a left side view of FIG. 2 as viewed from the front of the vehicle. FIG. 2 is an explanatory piping diagram showing a relationship between an emulsion tank and an emulsion supply system. It is an explanatory piping diagram showing a relation between an aggregate hopper and its aggregate supply system. It is explanatory drawing which shows the rotation operation of the whole arm, and the rotation operation of the third arm. FIG. 5 is an explanatory diagram showing a vertical operation of the entire arm and a state when the arm is raised. It is explanatory drawing which shows the procedure of the repair method using the road surface repair apparatus of this invention.

Explanation of reference numerals

A: Emulsion, B: Aggregate, 1: Emulsion tank, 2: Aggregate hopper, 3: Spray nozzle, 4: Emulsion supply system, 5: Aggregate supply system, 6-8: Emulsion heating mechanism, 41: Emulsion Circulating circuit, 42: Cleaning means, 43: Air circuit for preventing clogging, 58: Sand hopper, 61A: Main arm, 60: Arm, 61: First arm, 62: Second arm, 63: Third arm (Sub Arm), 71: compaction device, 72: leveling device, 73: lighting device.

Claims (3)

A road surface repairing device for repairing relatively small-scale damage generated on a pavement road surface, comprising an emulsion tank for storing emulsion, an aggregate hopper for storing aggregate, and emulsion and / or aggregate supplied from these. Nozzles for injecting the emulsion, an emulsion supply system and an aggregate supply system for independently supplying the emulsion in the emulsion tank and the aggregate in the aggregate hopper to the injection nozzles, and the emulsion supply system and the aggregate supply system And a controller for controlling the spray nozzle, wherein the spray nozzle has a configuration in which a tip portion of a pipe for sending emulsion and a tip portion of a pipe for sending aggregate are integrated or integrated,
The emulsion supply system selects a circulation circuit for circulating emulsion taken from the emulsion tank to the emulsion tank between the emulsion tank and the injection nozzle, and switching either air or cleaning oil to the circulation circuit. A road surface repairing device comprising: a cleaning means for cleaning the circulation circuit by supplying the cleaning device.   2. The road surface repair apparatus according to claim 1, further comprising an air circuit for preventing clogging of the injection nozzle by flowing air to the injection nozzle when the emulsion is not injected. The aggregate supply system includes a plurality of aggregate hoppers, and a plurality of types of aggregates stored in the aggregate hoppers can be switched to be supplied to the spray nozzle simultaneously or independently by switching. The road surface repair device according to claim 1.

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