JPH05112916A - Marking line for road, and its work executing method and work executing equipment - Google Patents

Abstract

PURPOSE:To enable work to be easily executed regardless of any work executing forms for lines, curves, letters, and the like, and enable them to be positively visible under the bad conditions of a flooded road and the like, and enhance the close contacting property with a road surface. CONSTITUTION:The centroid position of the storage tank 10 of liquid-state resin is pivotally supported on a bearing frame 15, and the bearing frame 15 is pivotally supported on a side plate 13 supported in sliding contact with the upper section of a road surface Besides, on a bearing plate 14 set saliently on both the sides of the rear section of the storage tank 10, a cam 20 to be rotated along with the rolling of a bearing wheel 3 on the road surface R is axially supported, and with the lower section of the cam 20, a cam follower 18 at the tip of an oscillating rod 17 to be projected to the rear side of the bearing frame 15 is transferred in contact. Along with running on the road surface R due to the rotation of the bearing wheel 3, the storage tank 10 is moved vertically to the side plate 13, and a void between a flowing- down port 11 to be opened at the lower end of the storage tank 10, and the road surface R is regulated, and a marking line 1 to be created on the road surface R by the coating of the liquid-state resin flowing down from the flowing-down port 11 is contrived to have projected sections 1a on every specified length.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking line such as a center line formed on a road surface, and further relates to a method for constructing this marking line and a construction device used for carrying out this construction method.

[0002]

2. Description of the Related Art Various marking lines such as a center line, a boundary line between a roadway and a sidewalk, and marking characters are formed on a road surface to serve as a mark for a driver of a vehicle traveling on the road. is there. In forming such a marking line, a resin having a property of solidifying at room temperature is heated to a predetermined temperature to be liquefied, and this is applied on a road surface to form a resin film having a constant thickness, A construction method is generally adopted in which the resin film is solidified by returning to normal temperature due to contact with outside air.

In this construction method, a heat-retaining pot for storing a resin as a material in a heat-retaining state, a storage tank for temporarily storing a high-viscosity liquid resin supplied from the heat-retaining pot, and allowing the liquid resin to flow down from a downflow opening that opens downward Using a construction device in which various parts of the above are mounted on a trolley supported by wheels, while moving the trolley on the road surface where a marking line is to be formed, a shutter attached to the downflow port when necessary It is carried out by the opening procedure.

At this time, the flow-out port at the lower part of the storage tank moves along with the movement of the carriage while maintaining a substantially constant slight separation height from the road surface, and the liquid resin flowing down by opening the shutter is It is applied on the road surface with a substantially constant thickness corresponding to the above-mentioned separation height, and the desired marking line is obtained by solidifying the resin film formed by this application. That is, an appropriate marking line is formed along the moving route of the trolley by a simple operation of moving the trolley on the road surface manually, for example, and opening the flow-out port at the bottom of the storage tank when necessary. ..

Incidentally, in recent years, glass beads having a very small diameter called beads are mixed in a resin film formed on a road surface, and the beads reflect the projection of a headlight to visually confirm at night. A marking line for ensuring certainty is generally used, and in the construction of such a marking, while a bead storage tank is mounted on the trolley, a bead sprayer supplied from the storage tank is used as the above-mentioned. A construction device, which is placed behind the storage tank and is capable of automatically spraying beads by the operation of the sprayer, is widely used on the surface of the resin film applied on the road surface according to the movement of the truck. ing.

[0006]

However, the marking line of the road formed as described above is extremely visible regardless of whether it is daytime or nighttime, because the road itself is submerged when the road is flooded due to rainfall or the like. It has a difficult problem. This problem can be solved to some extent by increasing the coating thickness of the liquid resin, but this method loses its effect due to a slight increase in the submersion depth, and the required amount of resin per unit length is reduced. This is not a desirable solution because it has the drawback of increasing the construction cost significantly.

On the other hand, as another construction method for conventional road marking lines, a construction method in which a resin band-shaped sheet manufactured by an appropriate molding process is brought to the construction site and is attached to the road surface is practical. Has been converted. In this method, in order to deal with the difficulty of visual recognition due to flooding, a strip-shaped sheet having a convex portion with an appropriate pattern on one surface is used, and this is used as a road surface with the convex surface as the surface side. It is affixed to and used as a marking line.

In the marking line thus obtained, the projection of the headlight of the vehicle hits the convex portion, and the reflected light from the convex portion is visually recognized by the driver.
Reliable visual recognition is possible even on a flooded road, which is useful for safely driving a vehicle under adverse conditions, such as driving on a flooded road at night.

However, in this construction method, it takes a lot of time to accurately attach the strip-shaped sheet, which leads to an increase in construction man-hours, and in addition to a marking line having a complicated shape such as a curve or a marking character. There is a problem that it is difficult to apply, and further, when compared to the marking line obtained by coating on the road surface, the sticking property to the road surface is poor, and there is a drawback that it easily peels off as the vehicle travels after construction. there were.

The present invention has been made in view of such circumstances, and enables reliable visual recognition under adverse conditions such as flooded roads, and regardless of the form of straight lines, curved lines, marking characters, etc. An object of the present invention is to provide a road marking line that is easy to construct, and a construction method and construction device for the marking line.

[0011]

The marking line of a road according to the present invention comprises a resin film formed by solidifying a liquid resin applied on the road surface, and is convex at predetermined intervals in the longitudinal direction of the surface. It is characterized by comprising a part.

Further, in the construction method according to the present invention, which is carried out to obtain the marking line of the road, the liquid resin outlet is moved so as to face the road surface, and the separation height of the outlet from the road surface is increased. When a resin film having a thickness corresponding to is formed along the path of movement, the separation height of the downflow port is increased for each predetermined movement distance, and the convex portion is obtained in the meantime.

Further, the road marking line construction apparatus according to the present invention, which is used for carrying out the construction method, has a dolly that moves on the road surface by the rotation of wheels, and the trolley supports the dolly. And a means for increasing or decreasing the support height of the liquid tank for the road surface according to the rotation of the wheels. ..

[0014]

In the present invention, the resin film formed by direct coating on the road surface is provided with convex portions at predetermined lengths, which enables reliable visual confirmation under adverse conditions and fixation. Realize road marking lines with excellent properties.

The marking line is moved so that the liquid resin outlet faces the road surface, and a resin film having a thickness corresponding to the separation height of the liquid resin from the road surface is provided along the movement route. When the conventional application method by coating is performed, the separation height of the downflow port is increased at every predetermined moving distance, and the liquid resin flowing down during this is applied in a thicker wall than other parts.

In this method, a liquid resin storage tank having a downward flow outlet facing the road surface is supported on a carriage that moves on the road surface by the rotation of wheels, and the road surface of the storage tank is supported. Is carried out by a construction device configured to increase / decrease the support height for each predetermined rotation of the wheel.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a perspective view showing an embodiment of a marking line of a road according to the present invention. The marking line 1 according to the present invention is a resin film obtained by applying a liquefied resin on the road surface R and solidifying the resin, and as shown in the drawing, the convex portions 1a are formed at predetermined intervals in the longitudinal direction. It is configured with 1a.

The convex portions 1a, 1a ... Raise the surface of the marking line 1 over the entire width, and the formation intervals thereof may be equal intervals or unequal intervals. Further, the convex portions 1a, 1a ... Shown in FIG. 1 have a trapezoidal shape and are raised in a side view in a predetermined length range, but the side surface shape of the convex portions 1a, 1a. Absent.

FIG. 2 is a perspective view showing another embodiment of the present invention. The marking line 1 shown in the figure is provided with convex portions 1a, 1a ... Which are arcuate in a side view and have a raised shape. The projections 1a, 1a ... Having shapes as shown in FIGS. 1 and 2 and shapes different from these can be easily realized by changing the cam shape in the construction device described later.

FIG. 3 is a perspective view showing the overall construction of the construction apparatus used for constructing the marking line 1 as described above. This construction apparatus is provided with a pair of left and right support wheels 3 and 3 (only one side is shown) in the front part, and a caster wheel 4 in the center of the rear part, which serves as a material on the trolley 2 supported at three points by these. It is equipped with a warming pot 5 for holding the resin at a liquefying temperature and a bead tank 6 for storing the beads, respectively. It is configured to allow manual running on the above.

On one side of the heat insulation pot 5, there is a storage tank 10 which is located on the side of one support wheel 3 which supports the front part of the trolley 2 and which has a rectangular box shape with the entire upper surface opened. It is attached. Above the storage tank 10, the tip of the supply gutter 50 extending from the lower side surface of the heat retaining kettle 5 is faced, and at the bottom of the storage tank 10, downward over substantially the entire width thereof. An opening 11 is formed which is open and faces the road surface R as shown in FIG.

Thus, the liquid resin in the heat retaining pot 5 is supplied to the storage tank 10 when the shutter 51 provided at the base end of the supply gutter 50 is opened. Is once stored in the storage tank 10 and then flows down onto the road surface from the flow-down opening 11 in the open state. A shutter (not shown) for opening and closing the downflow port 11 is attached, and the shutter and the open / close shutter 51 of the supply gutter 50 are extended toward the upper rear part of the trolley 2 and are provided with a hand-pushed handle. The operation levers (downflow lever 12 and supply lever 52) each having a tip on one side of 7 can be appropriately opened and closed while the carriage 2 is running.

On the side of the base end portion of the supply gutter 50, the supply gutter 50
A burner 53 is fixed to face the inside of the storage tank 10, and burners 54 and 55 are fixed to the front and rear sides of the storage tank 10 so as to face the outer wall of the storage tank 10. These burners 53, 54, 55 are ignited and supplied by a supply gas from an LPG cylinder (not shown) incorporated in an LPG cylinder case 9 connected to one side of the bead tank 6 behind the heat insulation pot 5. The liquid resin supplied to the storage tank 10 through the gutter 50 and the liquid resin before flowing down stored in the storage tank 10 are heated. Burner
Switching of ignition, extinguishing of 53, 54, 55 and heat power adjustment is done by LPG
It can be adjusted by operating a supply cock 90 protruding from the rear wall of the cylinder case 9.

On the other hand, a bead sprinkler 8 is provided behind the storage tank 10.
Is provided. This is fixed to the side portion of the truck 2 via a mounting member 80, and is connected to the inside of the bead tank 6 mounted on the truck 2 via a bead supply pipe 60.
On the rear side of the bead tank 6, a bead supply lever 61 is provided with its tip protruding in front of the hand push handle 7, and an adjustment cock 62 is provided in the middle of the bead supply pipe 60. The amount of the beads stored in the bead tank 6 is set by the operation of the adjusting cock 62 when the bead supply lever 61 is opened, and the bead sprayer 8 is supplied through the bead supply pipe 60.
And is evenly distributed on the road surface from a spray port (not shown) that is opened at the bottom of the sprayer 8.

The construction of each of the above parts is the same as that of a conventional construction apparatus of the same kind, and the construction apparatus according to the present invention is characterized in that the storage tank 10 is attached. FIG. 4 is an enlarged perspective view of an essential part showing a mounting mode of the storage tank 10. In this figure, in order to avoid complication of the drawing, the flow port 11
Opening and closing mechanism of the shutter to open and close the
Members such as 54, 55 and their mounting members that are not directly involved in the mounting of the storage tank 10 are not shown.

Reference numeral 13 in the drawing denotes a side plate which serves as a support for the storage tank 10. This side plate is separated from the storage tank 10 in the left-right direction by a distance slightly larger than the outer width of the storage tank 10. They are arranged (only one side is shown), and are supported on the road surface at a constant distance by the sliding contact of the respective lower surfaces. Meanwhile, storage tank 10
Is a U-shaped support frame that is loosely fitted from the rear side.
The centers of gravity in the front-rear direction are pivotally supported and attached to the tips of the both sides of 15, respectively.

On both sides of the support frame 15, support rods 16 projecting downward, slightly rearward of the pivot position of the storage tank 10,
16 (only one side is shown) are fixed, and these support rods 1
The lower ends of 6 and 16 are pivotally supported on the side plates 13 and 13, respectively. With the above structure, the support frame 15 has a support rod.
The storage tank 10, which is swingable with respect to the side plates 13 and 13 with the pivot shafts of 16 and 16 as fulcrums, and whose center of gravity in the front-rear direction is pivotally supported by the front end of the support frame 15, The side plates 13, 13, in other words, move up and down with respect to the road surface that supports them while keeping their own horizontal state in response to the swing of the support frame 15.

Further, the support frame 15 along the rear wall of the storage tank 10
A rocking rod 17 having a rod shape is provided so as to project rearward at the center of the lateral side of the rocking rod, and a cam follower 18 is attached to the tip of the rocking rod 17. On the other hand, on both sides of the rear part of the storage tank 10, a pair of support plates 14 and 14 inclined upward are fixedly provided, and a cam 20 is provided substantially at the center between the tip parts of these support plates 14 and 14. The cam follower 18 at the tip of the swing rod 17 is rotatably contacted with the lower side of the cam 20.

Since the tip of the swing rod 17 is always urged upward by the weight of the storage tank 10 pivotally supported by the other end of the support frame 15, the cam follower 18 is always supported by the cam 20. When the cam 20 is pressed and the cam 20 rotates with the rotation of the cam shaft 21, the tip of the swing rod 17 to which the cam follower 18 is attached moves up or down in accordance with the outer shape of the cam 20. As the supporting frame 15 swings, the storage tank 10 pivotally supported at the other end of the supporting frame 15 moves downward or upward while maintaining its own level as described above.

A belt wheel 30 is fitted on the axle 3a of the support wheel 3 for supporting the carriage, and a belt wheel 31 is mounted on the rear side of the belt wheel 30 and rotates about an axis parallel to the belt wheel 30. Is supported by the timing belt 32 between the belt wheels 30 and 31.
Is stretched. The rotating shaft of the belt wheel 31 extends toward the storage tank 10 mounted on one side of the support wheel 3 as described above, and the extended end is connected to the cam shaft 21 via the universal joint 22. It is connected.

When the truck 2 travels on the road surface, the rotation of the support wheels 3 associated with this travel causes the timing belt to rotate.
As a result of being transmitted to the camshaft 21 via the 32 and the universal joint 22, the camshaft 21 rotates in accordance with the traveling of the carriage 2, and the storage tank 10 is supported by the side plate supported on the road surface in accordance with this rotation. Move up and down with respect to 13.

The number of vertical movements of the storage tank 10 per one rotation of the support wheel 3, that is, per unit traveling distance of the carriage 2, is determined by the reduction ratio between the belt wheels 30 and 31 on which the timing belt 32 is stretched. , And the shape of the cam 20 can be set freely, and the vertical movement distance of the storage tank 10 at each time can also be set by the cam.
Can be set freely by selecting 20 shapes. For example, when the reduction gear ratio between the belt wheels 30 and 31 is set to 2 and a cocoon-shaped cam 20 having convex portions at two circumferential positions is used as shown in the figure, the storage tank 10 is Once every one rotation, the cam 20 moves up and down by a distance corresponding to the difference between the short diameter and the long diameter.

FIG. 5 is an explanatory view of a marking line construction method performed by using the construction apparatus according to the present invention. The construction apparatus according to the present invention travels on the road surface R in the direction indicated by the white arrow in the drawing by the rotation of the support wheels 3, and at this time, faces the road surface R at the lower end of the storage tank 10. The liquid resin flowing down from the downflow port 11 is applied to the road surface R with a thickness corresponding to the gap between the downflow port 11 and then solidified by contact with the outside air to solidify the road surface R. The marking line 1 is formed as a resin film adhered to the. At this time, the side plate
13, 13 are in sliding contact with the road surface R on both sides of the outlet 11,
This serves to prevent the liquid resin flowing down from the flow-down port 11 from protruding laterally and form the marking line 1 having a constant width.

When the construction apparatus according to the present invention is used, as described above, the storage tank 10 moves up and down with the rotation of the support wheels 3,
Correspondingly, the side plate 1 supported on the road surface R
The gap between the downflow port 11 and the road surface R, which changes the height of the downflow port 11 with respect to 3 and 13 and determines the coating thickness of the resin film that becomes the marking line 1, is the rotation of the wheel 3, that is, the construction device. It will increase or decrease according to the running of the car.

That is, as shown in FIG. 5A, the support rod is
17 When the long diameter portion of the cam 20 is in rolling contact with the cam follower 18 at the tip, the storage tank 10 is in a state of being moved upward by the downward pressing of the cam follower 18, and the storage port 10 is separated from the flow outlet 11 and the road surface R. While the gap is large and the thickness of the resin film applied between the gaps becomes large, as shown in FIG. 5B, when the short diameter portion of the cam 20 is in rolling contact with the cam follower 18, the storage tank 10 is , It is in a state of moving downward due to its own weight,
Since the gap between 11 and the road surface R is small, the thickness of the resin film applied during this period is small.

Since the cam 20 rotates in accordance with the rotation of the support wheel 3, the states shown in FIGS. 5 and 6 are alternately produced with an intermediate state between the two being interposed. By a simple operation of causing the construction device to travel along a predetermined route on the road surface R, the marking line 1 including the convex portions 1a, 1a ... at predetermined intervals can be easily provided along the traveling route. Can be formed.

A cocoon-shaped cam as shown in FIG.
When 20 is used, the convex portion 1a consisting of a trapezoidal swell,
A marking line 1 as shown in FIG. 1 provided with 1a ... at predetermined intervals can be obtained, but by appropriately setting the shape of the cam 20,
It goes without saying that the marking line 1 having the convex portions 1a, 1a ... Of other shapes can be obtained.

Further, in the present embodiment, in order to increase or decrease the support height of the storage tank 10 with respect to the side plates 13, 13 which are kept in constant contact with the road surface R, the support wheels 3 are interlocked. Although a purely mechanical mechanism using the rotating cam 20 is adopted, another structure such as a structure using an electric drive means such as an electric motor may be adopted.

[0039]

As described above in detail, the marking line of the road according to the present invention has convex portions at predetermined intervals on the surface of the resin film obtained by solidifying the liquid resin directly applied to the road surface. Since it is provided, the adhesion to the road surface is excellent, and it is possible to perform reliable visual recognition under adverse conditions such as a flooded road. Further, the road marking line construction apparatus according to the present invention, a liquid resin storage tank having a downflow opening facing the road surface is supported by a trolley that moves on the road surface by rotation of wheels, Since the support height is automatically increased or decreased according to the rotation of the wheels, the above-mentioned marking line construction can be performed by the same simple procedure as the conventional method of moving the dolly along a predetermined route on the road surface. The present invention has excellent effects such that the above can be easily performed regardless of the construction mode.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a road marking line according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the marking line of the road according to the present invention.

FIG. 3 is an external perspective view showing the overall configuration of a road marking line construction apparatus according to the present invention.

FIG. 4 is an enlarged perspective view of an essential part of a construction device for a road marking line according to the present invention.

FIG. 5 is an explanatory diagram of a method of constructing a marking line of a road according to the present invention.

[Explanation of symbols]

 1 Marking line 1a Convex part 2 Bogie 3 Support wheel 3a Axle 5 Heat insulation kettle 7 Handwheel 10 Storage tank 11 Downflow port 13 Side plate 15 Support frame 17 Swing rod 18 Cam follower 20 Cam 21 Camshaft

Claims (3)

[Claims] 1. A marking line for a road, comprising a resin film formed by solidifying a liquid resin applied on a road surface, and having projections at predetermined intervals in the longitudinal direction of the surface. 2. A construction method implemented to obtain a marking line of a road according to claim 1, wherein the liquid resin outlet is moved so as to face the road surface, and the outlet is separated from the road surface. When forming a resin film having a thickness corresponding to the height along the path of the movement, increasing the separation height of the downflow port for each predetermined movement distance, and obtaining the convex portion in the meantime Road marking line construction method. 3. An apparatus used for carrying out the construction method according to claim 2, wherein a trolley that moves on a road surface by rotation of wheels and a trolley supported by the trolley so as to face the road surface. A marking line for a road, comprising a liquid resin storage tank having an opening downflow opening in its lower portion, and means for increasing or decreasing the support height of the storage tank with respect to the road surface according to the rotation of the wheels. Construction equipment.