JP2023085771A - Construction unit for lane marking - Google Patents

Abstract

The object of the present invention is to provide a lane marking construction unit that can easily secure construction accuracy even when constructing a lane marking at a location far away from a vehicle in the vehicle width direction. A bogie (7) supported by a vehicle and traveling on the road surface (R) as the vehicle travels on the road surface (R); A support 8 extending outward in the width direction, and a paint supported by the support 8 at a position spaced outward in the vehicle width direction from the truck 7 and supplied from a paint tank mounted on the vehicle through a paint pipe. A paint spray gun 9 for spraying toward the road surface R, and a support 8 at a position separated from the truck 7 to the outside in the vehicle width direction, and supplied from a bead tank mounted on the vehicle through a bead pipe. A bead spray gun 10 for spraying beads as a reflecting material toward the paint sprayed from the paint spray gun 9 is provided. [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a lane marking construction unit used for constructing lane markings on a road surface.

BACKGROUND ART Conventionally, there is known a lane marking construction apparatus used for constructing lane markings such as a roadway center line, a roadway outer line, and a lane boundary line on a road surface such as an automobile road (see Japanese Patent Application Laid-Open No. 9-137403). ).

A lane marking construction device disclosed in Japanese Patent Application Laid-Open No. 9-137403 is mounted on a vehicle running on a road surface and includes a paint applicator and a bead spreader. The paint applicator and the bead spreader are supported at the tip of a support member extending outward in the vehicle width direction from the vehicle. The widthwise position of the paint applicator and the bead spreader relative to the vehicle can be adjusted by sliding the support member in the widthwise direction.

A paint applicator includes a paint reservoir. The paint reservoir is supplied through a supply trough with paint heated by a paint melter mounted on the vehicle. The paint supplied to the paint reservoir drops onto the road surface by opening a shutter provided at the lower end of the paint reservoir.

Beads, which are reflective materials stored in a bead tank mounted on a vehicle, are supplied to the bead sprayer through a supply pipe. The bead sprayer can spray the supplied beads toward the road surface.

When constructing lane markings on the road surface, the paint in the paint storage container is dropped onto the road surface by opening the shutter provided at the lower end of the paint storage container while driving the vehicle on the road surface. Apply to road surface. Furthermore, by spraying beads from a bead sprayer onto the uncured paint applied to the road surface, lane markings that are easy to see even at night by reflecting lights are created.

JP-A-9-137403

BACKGROUND ART Conventionally, as a measure to prevent accidents due to vehicle lane departure, construction of cut-type warning pavement on the road surface has been performed. Cut-type warning pavement has a wavy surface that is intentionally created by providing cut grooves on the road surface at regular intervals in the lane direction. When a vehicle strays from the lane and the tire runs over the cutting-type caution pavement, it generates a large amount of vibration and sound. These vibrations and sounds alert the driver to return the vehicle to the lane. be able to.

In recent years, in two-way traffic sections of motorways, there have been an increasing number of cases in which cut-type caution paving is constructed inside the existing roadway center line constructed on the road surface, that is, at a position adjacent to the lane side. In such cases, if the existing roadway centerline has deteriorated over time and some of the paint has peeled off, it is necessary to repair the roadway centerline, that is, re-paint the roadway centerline. .

In order to prevent the wheels of vehicles traveling in the lane from running on the cut-type caution-raising pavement when such construction is performed using a conventional construction device for lane markings, Repairing by increasing the amount of extension of the support member extending outward in the vehicle width direction, and placing the paint applicator and the bead spreader supported on the tip of the support member outside the cut-type caution pavement. should be positioned above the center line of the roadway.

However, in the conventional marking line construction device, the paint applicator supported by the tip of the support member is equipped with a heavy object, that is, a paint storage container that stores paint. For this reason, if the vehicle is driven with the support member extending by a large amount, the paint applicator will shake more due to the vibration that accompanies driving, making it difficult to ensure the accuracy of the re-painting of the roadway center line. . On the other hand, if the amount of extension of the support member is appropriate, the wheels of the vehicle will move on the cut-type attention-raising pavement. It becomes difficult to ensure the accuracy of re-construction of the line.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lane marking construction unit that can easily secure construction accuracy even when constructing a lane marking at a location far away from a vehicle in the vehicle width direction.

A marking line construction unit according to one aspect of the present invention includes a truck, a support, a paint spray gun, and a bead spray gun.

The bogie is supported by a vehicle and travels on the road surface as the vehicle travels on the road surface.

The support body is supported by the bogie and extends outward from the bogie in the vehicle width direction of the vehicle.

The paint spray gun is supported by the support at a position spaced outward from the truck in the vehicle width direction, and directs paint supplied from a paint tank mounted on the vehicle through a paint pipe to the road surface. to spray.

The bead spray gun is supported by the support at a position spaced outward from the truck in the vehicle width direction, and sprays beads, which are reflective materials, supplied from a bead tank mounted on the vehicle through a bead pipe. , toward the paint sprayed from the paint spray gun. Here, the paint sprayed from the paint spray gun may be the paint before being sprayed from the paint spray gun and adhered to the road surface, or the paint sprayed from the paint spray gun and being adhered to the road surface. It may be the paint immediately after.

In the marking line construction unit of one aspect of the present invention, the support includes a first support shaft extending outward in the vehicle width direction from the bogie side and supporting the paint spray gun; A second support shaft is provided apart from the first support shaft in the longitudinal direction of the vehicle, extends outward in the vehicle width direction from the truck side, and supports the bead spray gun.

In one aspect of the lane marking construction unit of the present invention, the support includes a first reinforcing member that connects the carriage and a portion of the first support shaft in the axial direction, and an axis of the carriage and the second support shaft. and a second reinforcing member connecting the directional portion.

The marking line construction unit according to one aspect of the present invention includes a vehicle width direction adjustment mechanism that adjusts the vehicle width direction positions of the paint spray gun and the bead spray gun with respect to the truck.

In one aspect of the marking line construction unit of the present invention, the vehicle width direction adjustment mechanism includes a mechanism for sliding the paint spray gun and the bead spray gun relative to the support in the vehicle width direction. be done.

According to one aspect of the present invention, the marking line construction unit includes a vertical adjustment mechanism for adjusting vertical positions of the paint spray gun and the bead spray gun with respect to the truck.

In one aspect of the lane marking construction unit of the present invention, the vertical adjustment mechanism includes a mechanism for moving the support in the vertical direction with respect to the carriage.

In one aspect of the marking line construction unit of the present invention, the vertical adjustment mechanism includes a mechanism for vertically moving the paint spray gun and the bead spray gun with respect to the support.

According to the lane marking construction unit of one aspect of the present invention, it is easy to ensure construction accuracy even when constructing lane markings at a location that is far away from the vehicle in the vehicle width direction.

FIG. 1(a) is a plan view of a vehicle equipped with a lane marking construction unit according to a first embodiment of the present invention, viewed from above, with a portion omitted, and FIG. 2 is a partially omitted side view of the vehicle viewed from below in FIG. 1(a); FIG. FIG. 2 is a perspective view of the lane marking construction unit of the first example in use, viewed from above and behind, with piping omitted. FIG. 3 is a perspective view of the lane marking construction unit of the first example as seen from above and from the rear. FIG. 4 is a perspective view of the marking line construction unit of the first example, omitting piping, as viewed from above and behind. FIG. 5 is a perspective view of the marking line construction unit of the first example, omitting piping, as viewed from above and from the front. FIG. 6 is a top plan view of the marking line construction unit of the first example, omitting piping. FIG. 7 is a side view of the marking line construction unit of the first example, omitting piping, as seen from the outside. FIG. 8 is a front view of the lane marking construction unit of the first example, omitting piping. FIG. 9 is a rear view of the lane marking construction unit of the first example, omitting piping.

[First example of embodiment]
A first example of an embodiment of the present invention will be described with reference to FIGS. 1 to 9. FIG.

As shown in FIGS. 1(a) and 1(b), the lane marking construction unit 1 of this example is assembled to a vehicle 2, and the road surface R is coated with paint and beads, which are reflective materials. It is a device that constructs lane markings such as lines, roadway outside lines, and lane boundary lines.

In the following description of the marking line construction unit 1 of this example, the front-rear direction and the left-right direction refer to the front-rear direction and the left-right direction of the vehicle 2 , and the vehicle width direction refers to the left-right direction of the vehicle 2 .

In this example, the vehicle 2 is a truck, and includes a cabin 3 having a driver's seat, a loading platform 4 arranged behind the cabin 3, left and right front wheels 5 located below the cabin 3, and Left and right rear wheels 6 are arranged below the sides.

In this example, the lane marking construction unit 1 is arranged on the right side of the vehicle 2 , more specifically, on the right side of the front-rear direction middle portion of the loading platform 4 . The lane marking construction unit 1 is arranged below the loading platform 4. - 特許庁When carrying out the present invention, the lane marking construction unit can also be arranged on the left side of the vehicle.

The lane marking construction unit 1 includes a truck 7, a support 8, a paint spray gun 9, and a bead spray gun 10, as shown in FIGS.

The truck 7 is supported by the vehicle 2 and travels on the road surface R as the vehicle 2 travels on the road surface R.

In this example, the carriage 7 comprises an upper frame 11, a lower frame 12, casters 13, and pneumatic cylinders 14 for folding.

As shown in FIGS. 4, 5, and 7, the upper frame 11 includes an upper horizontal portion 15 that extends in the front-rear direction, and an upper horizontal portion 15 that extends downward from the front end of the upper horizontal portion 15 toward the front. and an upper sloping portion 16 . The upper frame 11 is supported by the vehicle 2 via a storage device 24 which will be described later.

As shown in FIGS. 4, 5, and 7, the lower frame 12 is arranged below the upper frame 11, and is composed of a lower horizontal portion 17 extending in the front-rear direction and a lower horizontal portion 17. and a lower inclined portion 18 extending upward from the front end portion toward the front side. A front end portion of the lower inclined portion 18 is connected to a front end portion of the upper inclined portion 16 so as to be capable of swinging about a swing shaft 19 extending in the vehicle width direction. That is, the lower frame 12 is connected to the upper frame 11 so as to be able to swing around the swing shaft 19 .

As shown in FIG. 9 , the casters 13 are arranged below the lower horizontal portion 17 of the lower frame 12 , and rotate around the vertical rotation shafts 20 with respect to the lower horizontal portion 17 . It has a body 21 supported movably and wheels 23 supported rotatably about an axle 22 horizontal to the body 21 . The carriage 7 can run on the road surface R with wheels 23 .

The folding pneumatic cylinder 14 is arranged to connect the upper frame 11 and the lower frame 12 . In this example, the folding pneumatic cylinders 14 are connected to the upper horizontal portion 15 of the upper frame 11 and the lower inclined portion of the lower frame 12, as shown in FIGS. It has a lower end connected to the rear end of 18 . The folding pneumatic cylinder 14 is connected to a pneumatic circuit driven by an air compressor (not shown) mounted on the loading platform 4 of the vehicle 2 .

The pneumatic cylinder 14 for folding is controlled by operating a control panel (not shown) mounted on the cargo bed 4 of the vehicle 2 to swing the lower frame 12 upward about a swing shaft 19 and swinging the lower frame 12 upward. It is possible to switch between an air pressure state in which the lower frame 12 swings downward about the drive shaft 19 . In this example, the wheels 23 can be lifted off the road surface R by swinging the lower frame 12 upward by the folding pneumatic cylinder 14 when not working. During work, the wheels 23 can be brought into contact with the road surface R by swinging the lower frame 12 downward using the folding pneumatic cylinder 14 . When carrying out the present invention, a hydraulic cylinder, an electric actuator, or the like can be used as the folding actuator instead of the pneumatic cylinder.

In this example, the carriage 7 is supported so as to be movable in the vehicle width direction with respect to the vehicle 2 by a storage device 24 (see FIGS. 1(a) and 4) arranged below the loading platform 4 of the vehicle 2. It is

The storage device 24 includes two slide rods 25 and a storage hydraulic cylinder 26 . The two slide rods 25 are spaced apart in the front-rear direction and supported so as to be slidable in the vehicle width direction with respect to the vehicle 2 . The tip portions of the two slide rods 25 are connected to both ends in the front-rear direction of the upper horizontal portion 15 of the upper frame 11 . The storage hydraulic cylinder 26 is arranged between the two slide rods 25 in the front-rear direction. The storage hydraulic cylinder 26 has a base end connected to the vehicle 2 and a tip end connected to the center of the upper horizontal portion 15 of the upper frame 11 in the front-rear direction. The storage hydraulic cylinder 26 is connected to a hydraulic circuit driven by a hydraulic pump (not shown) mounted on the loading platform 4 of the vehicle 2 .

The storage hydraulic cylinder 26 is operated by operating the operation panel in a hydraulic state to move the carriage 7 inward in the vehicle width direction, a hydraulic state to move the carriage 7 outward in the vehicle width direction, and a hydraulic state to stop these movements. and can be switched. In this example, at least the carriage 7 of the marking line construction unit 1 can be stored under the loading platform 4 by moving the carriage 7 inward in the vehicle width direction by the storage hydraulic cylinder 26 during non-working. It is possible. Further, during work, by moving the carriage 7 outward in the vehicle width direction by the storage hydraulic cylinder 26, as shown in FIG. It can be positioned outside. When carrying out the present invention, a pneumatic cylinder, an electric actuator, or the like can be used instead of the hydraulic cylinder as the storage actuator.

The support 8 is supported by the carriage 7 and extends outward in the vehicle width direction from the carriage 7 .

In this example, the support 8 has a first support shaft 27 and a second support shaft 28 .

The first support shaft 27 is used to support the paint spray gun 9, and in this example, is configured by a metal round pipe. The first support shaft 27 is arranged to extend outward in the vehicle width direction from the truck 7 side.

The second support shaft 28 is used to support the bead spray gun 10, and in this example, is made of a metal round pipe. The second support shaft 28 is arranged to extend outward in the vehicle width direction from the truck 7 side at a position separated from the first support shaft 27 in the longitudinal direction of the vehicle. In this example, the second support shaft 28 is arranged on the rear side of the first support shaft 27 .

In this example, the inner end portions in the vehicle width direction, which are the base end portions of the first support shaft 27 and the second support shaft 28, are supported by an elevating section 40 of an elevating device 38, which will be described later, attached to the carriage 7. ing. That is, each of the first support shaft 27 and the second support shaft 28 is supported by the carriage 7 via the lifting device 38 .

In this example, the support 8 further comprises a first reinforcement member 29 and a second reinforcement member 30 .

The first reinforcing member 29 is used to reinforce the first support shaft 27 by connecting a portion of the first support shaft 27 supported in a cantilevered manner with respect to the elevating section 40 to the carriage 7 in the axial direction. , and in this example, it is composed of a metal L-shaped angle. The inner end in the vehicle width direction, which is the base end of the first reinforcing member 29, is connected to the lower horizontal portion 17 of the lower frame 12 of the carriage 7 so as to be able to swing. The outer end portion in the vehicle width direction, which is the portion, is pivotably connected to a portion of the first support shaft 27 in the axial direction. Specifically, in this example, the tip of the first reinforcing member 29 is connected to the tip of the first support shaft 27 , which is the outer end in the vehicle width direction. In this state, the first reinforcing member 29 is inclined upward toward the outside in the vehicle width direction.

The second reinforcing member 30 is used to reinforce the second support shaft 28 by connecting a portion of the second support shaft 28 supported in a cantilevered manner with respect to the elevating section 40 to the carriage 7 in the axial direction. , and in this example, it is composed of a metal L-shaped angle. The inner end portion in the vehicle width direction, which is the base end portion of the second reinforcing member 30, is connected to the lower horizontal portion 17 of the lower frame 12 of the carriage 7 so as to be able to swing. The outer end in the vehicle width direction, which is a portion of the second support shaft 28, is pivotably connected to a portion of the second support shaft 28 in the axial direction. Specifically, in this example, the tip of the second reinforcing member 30 is connected to the outer end in the vehicle width direction, which is the tip of the second support shaft 28 . In this state, the second reinforcing member 30 is inclined upward toward the outside in the vehicle width direction.

When carrying out the present invention, the first reinforcing member and the second reinforcing member can be omitted if the strength of the first supporting shaft and the second supporting shaft can be sufficiently ensured.

The paint spray gun 9 is supported by a support 8 at a position spaced outward in the vehicle width direction from the truck 7, and directs paint supplied from a paint tank (not shown) mounted on the vehicle 2 through a paint pipe to the road surface R. to spray.

In this example, the paint spray gun 9 is supported by the tip of the first support shaft 27 via the first holder 31 .

The paint spray gun 9 can be switched between a paint injection state in which the paint is sprayed toward the road surface R and a paint stop state in which the injection is stopped by operating the control panel.

That is, in this example, a paint tank (not shown) storing paint, a pressure pump (not shown) for transferring and injecting the paint, and a pressure pump (not shown) for heating the paint transferred from the paint tank (not shown) Equipped with paint heater. Heated paint is circulated to the paint spray gun 9 between the paint tank and the paint heating device through paint piping including paint hoses 33a, 33b (shown only in FIG. 3). Compressed air can be supplied from the air compressor to an on-off valve provided inside the paint spray gun 9 through an air pipe including an air tube 34 (shown only in FIG. 3). In this example, by operating the control panel, compressed air is sent from the air compressor to the open/close valve of the paint spray gun 9, and the open/close valve is opened to direct air from the injection port 9a of the paint spray gun 9 toward the road surface R. It is possible to switch between a paint injection state in which the paint is injected downward and a paint stop state in which the injection of the paint is stopped by closing the on-off valve by stopping the supply of the compressed air.

The bead spray gun 10 is supported by a support 8 at a position spaced outward in the vehicle width direction from the truck 7, and sprays beads, which are reflective materials, supplied from a bead tank (not shown) mounted on the vehicle 2 through a bead pipe. , toward the paint sprayed from the paint spray gun 9.

In this example, the bead spray gun 10 is supported by the tip of the second support shaft 28 via the second holder 32 .

The bead spray gun 10 is switched between a bead injection state in which beads are injected toward the paint injected from the injection port 9a of the paint spray gun 9 and a bead stop state in which the injection is stopped by operating the control panel. It is possible.

That is, in this example, a bead tank (not shown) storing beads is mounted on the loading platform 4 of the vehicle 2 . Compressed air is supplied from the air compressor to the bead tank for transporting and jetting the beads. The bead spray gun 10 is supplied with beads from the bead tank through a bead line including a bead hose 35 (shown only in FIG. 3). Further, the on-off valve provided inside the bead spray gun 10 can receive compressed air from the air compressor through air pipes including air tubes 36a and 36b (shown only in FIG. 3). In this example, by operating the operation panel, compressed air is sent from the air compressor to the on-off valve of the bead spray gun 10 to open the on-off valve and spray beads from the injection port 10a of the bead spray gun 10. It is possible to switch between an injection state and a bead stop state in which the injection of the beads is stopped by closing the on-off valve by stopping the supply of the compressed air.

In the bead ejection state, the paint ejected from the ejection port 9a of the paint spray gun 9, specifically, the paint ejected from the ejection port 9a of the paint spray gun 9 and before adhering to the road surface R, and/or Beads are jetted from an injection port 9a of a paint spray gun 9 and are jetted from an injection port 10a of a bead spray gun 10 toward the paint immediately after adhering to the road surface R. In this example, the beads are jetted downward and forward from the injection port 10a of the bead spray gun 10 toward the paint that has not adhered to the road surface R from the injection port 9a of the paint spray gun 9.

In the case of carrying out the present invention, as in this example, beads are jetted from the injection port 10a of the bead spray gun 10 toward the paint that has not yet adhered to the road surface R after being sprayed from the injection port 9a of the paint spray gun 9. In some cases, the bead spray gun 10 is arranged in front of the paint spray gun 9, that is, the first support shaft 27 and the first reinforcing member 29 are arranged in front of the second supporting shaft 28 and the second reinforcing member 30. can also

In this example, a vehicle width direction adjusting mechanism for adjusting the vehicle width direction positions of the paint spray gun 9 and the bead spray gun 10 with respect to the truck 7 is provided.

In this example, the vehicle width direction adjustment mechanism includes a mechanism for sliding the paint spray gun 9 and the bead spray gun 10 with respect to the support 8 in the vehicle width direction. More specifically, in this example, the mechanism is such that the slide block 37a provided in the first holder 31 is fitted onto the first support shaft 27 so as to be slidable in the axial direction; A slide block 37b provided in the second holder 32 is fitted onto the second support shaft 28 so as to be slidable in the axial direction. That is, the position of the paint spray gun 9 in the vehicle width direction relative to the carriage 7 can be adjusted by axially sliding the slide block 37a relative to the first support shaft 27. As shown in FIG. Further, the position of the bead spray gun 10 in the vehicle width direction relative to the truck 7 can be adjusted by axially sliding the slide block 37b relative to the second support shaft 28. As shown in FIG.

Whether or not the slide block 37a can slide with respect to the first support shaft 27 and whether or not the slide block 37b can slide with respect to the second support shaft 28 can be switched by an appropriate switching mechanism (in this example, the screw mechanism 50a). It is said that When adjusting the position of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7 in the vehicle width direction, the slide block 37a slides relative to the first support shaft 27 and the slide block 37b moves relative to the second support shaft 28. Allows sliding movement. After adjustment, the slide movement is disabled and the position after adjustment is maintained.

When carrying out the present invention, the vehicle width direction adjusting mechanism is a mechanism in which the support body expands and contracts in the vehicle width direction, for example, a mechanism configured by a cylinder in which the first support shaft and the second support shaft expand and contract in the vehicle width direction. It can also be configured to include Alternatively, the vehicle width direction adjustment mechanism includes a mechanism for sliding the support in the vehicle width direction with respect to the truck, for example, a mechanism for sliding the first support shaft and the second support shaft in the vehicle width direction with respect to the truck. It can also be configured with In these cases, when the first reinforcing member and the second reinforcing member are provided, for example, the base ends of the first reinforcing member and the second reinforcing member are connected to the carriage so as to be swingable, and , the tip portions of the first support shaft and the second support shaft are connected to guide portions such as elongated holes provided in the first reinforcement member and the second reinforcement member so as to be slidable and swingable along the guide portions. can do.

When carrying out the present invention, the vehicle width direction adjusting mechanism can be omitted.

In this example, a vertical adjustment mechanism is provided for adjusting the vertical positions of the paint spray gun 9 and the bead spray gun 10 with respect to the truck 7 .

In this example, the vertical adjustment mechanism includes a mechanism for moving the first support shaft 27 and the second support shaft 28 of the support 8 in the vertical direction with respect to the carriage 7 . More specifically, in this example, the mechanism is constituted by a hydraulic lifting device 38 attached to the lower horizontal portion 17 of the lower frame 12 of the carriage 7 . The lifting device 38 has a fixed portion 39 fixed to the lower horizontal portion 17, a lifting portion 40 attached to the fixing portion 39 so as to be movable up and down, and both ends of which are connected to the fixing portion 39 and the lifting portion 40. and a hydraulic cylinder 41 . The hydraulic cylinder 41 is connected to hydraulic hoses 42a and 42b (shown only in FIG. 3), which are hydraulic pipes forming the hydraulic circuit.

The hydraulic cylinder 41 operates the operating panel to operate the operating panel to operate the hydraulic cylinder 41 in a hydraulic state for raising the lifting section 40 relative to the fixed section 39, a hydraulic state for lowering the lifting section 40 with respect to the fixed section 39, and stopping the lifting and lowering of these states. It is switchable to and from the hydraulic state. The vertical positions of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7 can be adjusted by raising and lowering the lifting section 40 with respect to the fixing section 39 . When implementing the present invention, the lifting device may be electric or manual.

In this example, the base of the first reinforcing member 29 is set to enable the lifting section 40 to move up and down with respect to the fixed section 39 , that is, to enable the lifting and lowering of the first support shaft 27 and the second support shaft 28 with respect to the carriage 7 . The end portion and the base end portion of the second reinforcing member 30 are connected to the lower horizontal portion 17 of the lower frame 12 of the carriage 7 so as to be capable of swinging around the swing shafts 43a and 43b in the front-rear direction. ing. Further, the distal end portion of the first reinforcing member 29 and the distal end portion of the second reinforcing member 30 are slid in the vehicle width direction and forward and backward relative to the distal end portion of the first support shaft 27 and the distal end portion of the second support shaft 28 . It is connected so that it can swing around a directional swing axis. Specifically, for this purpose, slide members 44a and 44b are fitted onto the distal end portion of the first support shaft 27 and the distal end portion of the second support shaft 28 so as to be slidable in the axial direction. Further, the distal end portion of the first reinforcing member 29 and the distal end portion of the second reinforcing member 30 are connected to the slide members 44a and 44b so as to be able to swing around the front-back direction swing shafts 45a and 45b. there is

Whether or not the slide member 44a can slide with respect to the first support shaft 27 and whether or not the slide member 44b can slide with respect to the second support shaft 28 can be switched by an appropriate switching mechanism (screw mechanism 50b in this example). It is said that In order to adjust the vertical positions of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7, the slide member 44a slides with respect to the first support shaft 27 when the elevation unit 40 is moved up and down with respect to the fixed unit 39. Movement and sliding movement of the slide member 44b relative to the second support shaft 28 are enabled. After adjustment, the sliding movement is disabled, the adjusted position is maintained, and the first support shaft 27 is reinforced by the first reinforcing member 29 and the second support shaft 28 is reinforced by the second reinforcing member 30. is in effect.

In this example, the vertical adjustment mechanism includes a mechanism for vertically moving the paint spray gun 9 and the bead spray gun 10 with respect to the support 8 . More specifically, in this example, the mechanism is composed of a manual actuator 46 a provided on the first holder 31 and a manual actuator 46 b provided on the second holder 32 .

The actuators 46a and 46b include cylindrical fixed portions 47a and 47b that extend vertically and are fixed to the slide blocks 37a and 37b, and elevating portions that are fitted inside the fixed portions 47a and 47b so as to be able to move up and down. 48a, 48b, a feed screw mechanism (not shown) disposed between the fixed portions 47a, 47b and the lifting portions 48a, 48b, and handles 49a, 49b disposed above the fixed portions 47a, 47b. The paint spray gun 9 is supported by the lower end of the elevating section 48a, and the bead spray gun 10 is supported by the lower end of the elevating section 48b.

The vertical position of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7 can be moved up and down with respect to the fixed parts 47a and 47b by manually rotating the handles 49a and 49b to drive the feed screw mechanism. It can be adjusted by raising and lowering the portions 48a and 48b. When practicing the present invention, these actuators may also be electrically powered.

An appropriate switching mechanism (in this example, a screw mechanism 50c) can switch between whether the lifting section 48a can be raised and lowered with respect to the fixing section 47a and whether the lifting section 48b can be raised and lowered with respect to the fixing section 47b. When adjusting the vertical positions of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7, the lifting section 48a can be moved up and down relative to the fixing section 47a, and the lifting section 48b can be raised and lowered relative to the fixing section 47b. After the adjustment, the position after the adjustment is held by disabling the lifting and lowering.

When carrying out the present invention, it is also possible to employ a configuration in which only one of the lifting device and the actuator is provided as the vertical adjustment mechanism. Alternatively, when implementing the present invention, the vertical adjustment mechanism may be omitted.

Next, a method of constructing a lane marking using the vehicle 2 to which the lane marking construction unit 1 of this example is assembled will be described.

FIG. 1(a) and FIG. 2 show an example of a construction site of lane markings. This construction site is a two-way section of a motorway. Pillars 54 for supporting wire ropes (not shown) are erected at equal intervals in the direction along the lane in the median strip 53 of the two-way traffic section. Roadway center lines 51 a and 51 b are constructed at positions adjacent to the median strip 53 on both sides of the road surface with the median strip 53 interposed therebetween. Of the roadway center lines 51a and 51b, the roadway centerline 51a on the outside (the side closer to the median strip 53) is a white centerline, and the roadway centerline 51b on the inside (the side farther from the median strip 53) is yellow. Chuo line. Cut-type attention-calling pavements 52 are constructed at positions adjacent to the inner sides of the roadway center lines 51a and 51b. Below, at such a construction site, a case of re-constructing the roadway center lines 51a and 51b whose paint has partially peeled off due to deterioration over time will be described.

When re-constructing the roadway center lines 51a and 51b at the construction site, the vehicle 2 assembled with the lane marking construction unit 1 of this example is moved from the depot to the construction site by self-propelled. During this movement, the lane marking construction unit 1 is stored under the loading platform 4 of the vehicle 2.例文帳に追加That is, the lower frame 12 is swung upward by the folding pneumatic cylinder 14 to lift the wheels 23 from the road surface, and the lane marking construction unit 1 is directed inward in the vehicle width direction by the storage device 24. By moving, the construction unit 1 for marking lines is housed under the loading platform 4. - 特許庁At this time, if the support 8, the paint spray gun 9, and the bead spray gun 10 cannot be stored under the loading platform 4 and protrude outward from the loading platform 4 in the vehicle width direction, , the support 8 and the paint spray gun 9 and the bead spray gun 10 from the carriage 7 and the lifting device 38 . Then, the separated support 8, paint spray gun 9 and bead spray gun 10 can be stored separately under the loading platform 4 or placed on the loading platform 4 and transported to the construction site.

When the vehicle 2 arrives at the construction site, the storage device 24 moves the lane marking construction unit 1 toward the outside in the vehicle width direction so that the lane marking construction unit 1 has at least a vehicle width larger than that of the truck 7. A portion positioned on the outside in the direction is arranged outside the loading platform 4 in the vehicle width direction. Further, the wheels 23 are brought into contact with the road surface R by swinging the lower frame 12 downward by the folding pneumatic cylinder 14 . If the support 8, the paint spray gun 9, and the bead spray gun 10 are separated from the carriage 7 and the lifting device 38 when the vehicle 2 arrives at the construction site, an additional operation is to The body 8, the paint spray gun 9 and the bead spray gun 10 are attached to the cart 7 and the lifting device 38 again.

Next, of the roadway centerlines 51a and 51b, for example, when the outer roadway centerline 51a is to be re-constructed, the vehicle 2 is placed on the road surface R on the roadway centerline as shown in FIG. The wheels 23 of the carriage 7 (see FIG. 1(b)) are arranged in parallel with 51a and 51b and on the road surface R adjacent to the inner side of the cut-type attention-calling pavement 52. Further, in this state, the paint spray gun 9 and the bead spray gun 10 are positioned above the outer roadway center line 51a by a predetermined height. For this reason, in this example, the vehicle width direction positions of the paint spray gun 9 and the bead spray gun 10 with respect to the truck 7 are adjusted in advance by the vehicle width direction adjustment mechanism, and the paint spray gun 9 and the bead spray gun 9 with respect to the truck 7 are adjusted in advance. The vertical position of the gun 10 is adjusted by the vertical adjustment mechanism.

In the case of carrying out the present invention, if the marking line construction unit does not have a vehicle width direction position adjustment mechanism, the vehicle width direction distance from the truck 7 to the paint spray gun 9 and the bead spray gun 10 is The length of the support in the vehicle width direction, the mounting positions of the paint spray gun and the bead spray gun on the support in the vehicle width direction, and the like are set in advance so that the width is larger than the width of the pavement 52 for calling attention. In the case of carrying out the present invention, when the marking line construction unit does not have a vertical position adjusting mechanism, the paint spray gun and the bead spray gun are positioned at a predetermined height with respect to the outer roadway center line 51a. The vertical mounting position of the support with respect to the carriage, the vertical mounting positions of the paint spray gun and the bead spray gun with respect to the support, etc.

Next, in this state, as the vehicle 2 runs on the road surface R parallel to the road center lines 51a and 51b, the carriage 7 runs on the road surface R parallel to the road center lines 51a and 51b. While running in this way, white paint is sprayed from the paint spray gun 9 toward the aged-deteriorated outer roadway center line 51a, and beads are sprayed from the bead spray gun 10 toward the paint. . As a result, the outer roadway center line 51a is re-constructed.

The inner roadway center line 51b can be re-constructed in the same manner as the outer roadway center line 51a. In this case, the vehicle width direction positions of the paint spray gun 9 and the bead spray gun 10 with respect to the truck 7 are adjusted by the vehicle width direction adjustment mechanism according to the vehicle width direction distance from the truck 7 to the inner roadway center line 51b. The paint spray gun 9 and the bead spray gun 10 are positioned above the inner roadway center line 51b by changing or shifting the running position of the truck 7 to the far side from the median strip 53 . Also, the paint supplied to the paint spray gun 9 and sprayed from the paint spray gun 9 onto the road surface R is changed to yellow paint.

After the construction at the construction site is completed, the vehicle 2 assembled with the lane marking construction unit 1 is self-propelled from the construction site to the vehicle depot. At this time, the lane marking construction unit 1 is stored under the loading platform 4 of the vehicle 2 as in the case of moving from the depot to the construction site. In addition, if necessary, the support 8, the paint spray gun 9 and the bead spray gun 10 are separated from the carriage 7 and the lifting device 38 and separately stored under the loading platform 4 or placed on the loading platform 4. And so on, it can be transported to the vehicle depot.

In the above description, the case of re-constructing the roadway center lines 51a and 51b existing outside the cut-type attention-calling pavement 52 by the lane marking construction unit 1 of the present example has been described. The construction unit 1 can be used to re-construct or newly construct various lane markings.

In the marking line construction unit 1 of this example, a paint spray gun 9 and a bead spray gun 10 are supported on the tip of a support 8 extending outward in the vehicle width direction from a truck 7 that travels with the vehicle 2 . For this reason, it is necessary to construct the lane markings at a location far away from the vehicle 2 in the vehicle width direction. Can be rebuilt. In addition, even if there is no cut-type caution-calling pavement 52, it is possible to obtain an effect that the vehicle 2 does not have to move too close to the median strip 53 side.

In this example, a vehicle width direction adjusting mechanism for adjusting the vehicle width direction positions of the paint spray gun 9 and the bead spray gun 10 with respect to the truck 7 is provided. For this reason, for example, even at a site where the width of the cut-type attention-calling pavement 52 is different, by adjusting the positions of the paint spray gun 9 and the bead spray gun 10 with respect to the truck 7 in the vehicle width direction, the cut-type attention-call pavement 52 can be cut. The roadway center lines 51a and 51b existing on the outside can be re-constructed appropriately.

In this example, a vertical adjustment mechanism for adjusting the vertical positions of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7 is provided. For this reason, for example, there is a height difference between a portion of the road surface R on which the truck 7 travels and a portion where a lane marking is to be constructed, for example, a portion where the existing roadway center lines 51a and 51b are to be re-constructed. Even in this case, the vertical positions of the paint spray gun 9 and the bead spray gun 10 can be properly managed.

In this example, the vertical adjustment mechanism for adjusting the vertical position of the paint spray gun 9 and the bead spray gun 10 with respect to the carriage 7 includes a lifting device 38 and actuators 46a and 46b. Therefore, regarding the adjustment of the vertical position, for example, after rough adjustment is performed by the lifting device 38, fine adjustment can be performed by the actuators 46a and 46b.

In this example, the paint spray gun 9 is connected to the paint tank and the paint heater mounted on the truck bed 4 of the vehicle 2 through paint piping including paint hoses 33a, 33b (shown only in FIG. 3). , heated paint is circulated. That is, in this example, the tip of the support 8 does not support a heavy object such as a paint storage container that stores paint. Therefore, it is possible to prevent the paint spray gun 9 from swinging excessively regardless of the vibrations caused by the running of the vehicle 2 and the truck 7 . Therefore, it is easy to ensure the accuracy of construction of the lane markings.

In this example, the support 8 includes a first reinforcing member 29 that reinforces the first supporting shaft 27 that supports the paint spray gun 9 and a second reinforcing member that reinforces the second supporting shaft 28 that supports the bead spray gun 10. A member 30 is provided. Therefore, it is possible to more effectively suppress the shake of the paint spray gun 9 and the bead spray gun 10 from increasing regardless of the vibration accompanying the running of the vehicle 2 and the truck 7 .

1 Construction unit for lane marking 2 Vehicle 3 Cabin 4 Bed 5 Front wheel 6 Rear wheel 7 Cart 8 Support 9 Paint spray gun 9a Spout 10 Bead spray gun 10a Spout 11 Upper frame 12 Lower frame 13 Caster 14 Pneumatic cylinder for folding 15 Upper horizontal portion 16 Upper inclined portion 17 Lower horizontal portion 18 Lower inclined portion 19 Swing shaft 20 Rotating shaft 21 Body 22 Axle 23 Wheel 24 Storage device 25 Slide rod 26 Hydraulic cylinder for storage 27 First support shaft 28 Second 2 support shaft 29 first reinforcing member 30 second reinforcing member 31 first holder 32 second holder 33a, 33b paint hose 34 air tube 35 bead hose 36a, 36b air tube 37a, 37b slide block 38 lifting device 39 fixing part 40 lifting Part 41 Hydraulic cylinders 42a, 42b Hydraulic hoses 43a, 43b Swing shafts 44a, 44b Slide members 45a, 45b Swing shafts 46a, 46b Actuators 47a, 47b Fixing parts 48a, 48b Elevating parts 49a, 49b Handles 50a, 50b, 50c Screws stop mechanism
51a, 51b Roadway center line 52 Cut-type caution-raising pavement 53 Median strip 54 Post

Claims (8)

a carriage supported by a vehicle and traveling on the road surface as the vehicle travels on the road surface;
a support body supported by the truck and extending outward from the truck in the vehicle width direction;
A paint spray gun that is supported by the support at a position spaced outwardly in the vehicle width direction from the truck and sprays paint onto the road surface that is supplied from a paint tank mounted on the vehicle through a paint pipe. and,
Beads, which are reflective materials supported by the support at a position spaced outward from the truck in the vehicle width direction and supplied through a bead pipe from a bead tank mounted on the vehicle, are supplied from the paint spray gun. a bead spray gun that sprays toward the sprayed paint,
Construction unit for lane markings. The support includes a first support shaft that extends outward in the vehicle width direction from the truck side and supports the paint spray gun, and is separated from the first support shaft in the vehicle front-rear direction. 2 . The lane marking construction unit according to claim 1 , further comprising a second support shaft arranged as a second support shaft extending outward in the vehicle width direction from the truck side and supporting the bead spray gun. The support includes a first reinforcing member that connects the truck and a portion of the first support shaft in an axial direction, and a second reinforcing member that connects the truck and a portion of the second support shaft in the axial direction. 3. The lane marking construction unit according to claim 2. The lane marking construction unit according to any one of claims 1 to 3, further comprising a vehicle width direction adjustment mechanism for adjusting positions of the paint spray gun and the bead spray gun relative to the truck in the vehicle width direction. 5. The lane marking construction according to claim 4, wherein the vehicle width direction adjustment mechanism includes a mechanism for sliding the paint spray gun and the bead spray gun relative to the support in the vehicle width direction. unit. 6. The lane marking construction unit according to claim 1, further comprising a vertical adjustment mechanism for adjusting vertical positions of said paint spray gun and said bead spray gun with respect to said truck. 7. The lane marking construction unit according to claim 6, wherein said vertical adjustment mechanism includes a mechanism for moving said support vertically with respect to said carriage. 8. The lane marking construction unit according to claim 6, wherein said vertical adjustment mechanism includes a mechanism for vertically moving said paint spray gun and said bead spray gun with respect to said support.

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