JP2001311110A - Construction execution method for alarm type road line for visually handicapped person - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously lay accurate button-shaped protrusions on a road surface in a short time. SOLUTION: A protrusion formation sheet previously forming a number of the protrusions on the surface with paint is prepared. A protrusion execution machine attaching at least a protrusion set rotor rotating in parallel to the road surface, a sheet heating burner and a line heating burner is used, after the protrusion formation sheet is supplied on the protrusion set rotor rotated and controlled in response to the moving distance of the protrusion execution machine in a fitted state, it is heated with the sheet heating burner, and laid on to be transferred on a band-like line heated with the line heating burner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended for a visually impaired person to warn of danger during walking. The present invention relates to a method for constructing a warning-type road line for the visually impaired, which is laid.

[0002]

2. Description of the Related Art In general, road lines for the visually impaired include guide-type lines having a large number of rib-shaped protrusions having a rectangular outer periphery and warning-type roads having a large number of button-shaped protrusions having a circular outer periphery. Marked in combination with the line, the visually impaired walks along the guided road line, and recognizes places where normal walking cannot be performed on the warning road line, that is, dangerous areas such as stairs and platforms, or intersections etc. It is supposed to.

Conventionally, a warning-type road line for warning of this danger is provided by arranging square tiles having a large number of button-shaped protrusions formed on the surface in advance on the road surface, or by providing button-shaped protrusions. The mainstream is a method in which a sheet-like object having a large number of sheets on the surface is adhered one by one to a road surface by an operator.

In recent years, as a method of constructing a road marking line for the visually impaired directly on a road surface using a paint mainly composed of a thermoplastic resin, Japanese Patent Application Laid-Open No. Hei 7-138921 discloses a method of shaking a road on a road surface. Is discharged from the line forming outlet of the storage tank containing the heat fusible material to form lines L1 and L2 having a predetermined width. By controlling the formation of the opening of the outlet, a projection P is formed on the lines L1 and L2.
A method of laying a road surface line in which 1, P2 is integrally protruded is disclosed.

Further, in Japanese Patent Application Laid-Open No. 9-170209, a warning type marking line for forming a large number of button-shaped protrusions having a circular outer periphery is provided with a flat line of a predetermined width of 1 to 3 mm in advance on a road surface. Work, place a 4-6mm thick template with a large number of truncated cone-shaped mold holes on it, and pour thermoplastic paint over the template to form a number of button-shaped protrusions Construction methods have been proposed.

[0006] In Japanese Patent Application No. 9-348556, a button-shaped projection is formed, so that a template placed on a road surface can be injected in a non-contact manner and an appropriate amount of paint can be injected into a mold hole of the template. A construction apparatus capable of forming an accurate button-shaped projection is disclosed.

[0007]

However, among the above-mentioned conventional construction methods, any of the methods of arranging tiles having button-shaped projections formed in advance and joining or bonding the projection sheets are any methods. However, it is troublesome, time-consuming, and costly. In particular, it is difficult to arrange them neatly in a line, and a large number of workers are required.

On the other hand, in Japanese Unexamined Patent Publication No. Hei 7-138921, the dimension of forming the warning-shaped projection P2 is described in column 5, line 10 of the Japanese Unexamined Patent Publication No. The repeated opening and closing operation is repeated, so that a predetermined button-like projection P2 is placed on the line L2.
(For example, a diameter of 3 cm and a height of 5 mm), and the button-like projections P2 flow extremely slowly during the cooling of the heat-fusible material, and after cooling, the button has a rounded shape. It becomes a state. However, even if the formation of the projection P2 enables a square shape,
It is extremely difficult to form a square protrusion in the shape of a circular button by flowing slowly while the material is cooling, and it is extremely difficult to form a precise circular protrusion. With the development, there was a problem that construction could not be performed in a short time.

[0009] In Japanese Patent Application Laid-Open No. 9-170209, a road lane marking machine is generally used for constructing an ordinary band line on a template, and the paint hopper contacts the template. Therefore, it is necessary to move the paint hopper to a certain extent while pressing the paint hopper against the mold plate to flow the paint in the hopper. However, since the road surface is not completely flat, the entire surface of the template does not completely adhere to the road surface, and a portion floating from the road surface is generated. Therefore, due to the pressing force of the paint hopper, the floating portion of the template changes with the movement of the paint hopper, and the paint is injected and the hole of the template rises while it is not yet solidified, and it is originally formed into a button shape. No projections to be formed are formed, resulting in incompleteness. In addition, between the template and the paint hopper, aggregate (up to about 0.8 mm) mixed into the paint enters, and a gap is easily generated between the template and the paint hopper, and therefore, a thin layer is formed on the upper surface of the template. When the paint film is formed and it becomes thicker and thicker, it is connected to the paint in the hole, and when the paint is solidified and the template is removed, the upper part of the protrusion formed in the hole is partially missing and incomplete. In addition to the shape, a large amount of labor was required to remove the solidified coating film on the template. Furthermore, if there is unevenness on the road surface or the template itself warps, the amount of paint discharged from the conventional paint hopper is large, so that excess paint flows into the gap between the road surface and the template and the defective coating film Is formed.

In Japanese Patent Application Laid-Open No. Hei 9-348556, there is an advantage that an accurate button-shaped projection for injecting an appropriate amount of paint into a mold hole of a mold plate can be formed, and the mold plate can be easily maintained. However, it is necessary to sequentially move a template of a certain size and place it on the road surface, and it takes time and effort to place the template, during which the construction work of protrusions is interrupted, and In addition, there is a problem that it is not possible to perform a simple construction, the workability is poor, and furthermore, extra work such as loading and unloading of the template to the construction site is required.

The present invention has been developed in view of the above-mentioned conventional problems, and it is necessary to accurately and continuously lay a button-shaped projection on a road surface in a short time and to form a projection at a construction site. It is an object of the present invention to provide a construction method of a warning type road line for the visually impaired.

Another object of the present invention is to provide a method for constructing a warning type road line for visually impaired persons, in which a projection-formed sheet manufactured in advance in a factory can be automatically laid on a road surface.

[0013]

Means for Solving the Problems However, in the present invention,
A strip line (A) having a thickness of 1 to 3 mm is previously formed on a road surface with a thermoplastic paint, and then the strip line (A) is applied.
In the construction method of a warning-type road line for the visually impaired in which a large number of button-shaped protrusions (B) are formed using the above-mentioned paint, a large number of the protrusions (B) are formed on the surface with the paint in advance. A projection forming sheet (C) is prepared, and a projection mounting rotor (2) that rotates in parallel with the road surface, a heating burner (7) for a sheet, and a heating burner (8) for a line are mounted at least. Using the construction machine (1), place the projection forming sheet (C) on the projection setting rotor (2), the rotation of which is controlled in accordance with the moving distance of the projection construction machine (1). After the sheet (B) is supplied in the fitted state, the strip-shaped line (A) is heated by the sheet heating burner (7), and the protrusion forming sheet (C) is heated by the line heating burner (8). Transferred and laid on top It is an feature.

Further, in the present invention, the projection forming sheet (C) supplied onto the projection setting rotor (2) is held by holding means (5) to the laying position on the strip-shaped line (A). When the sheet is transferred and opened at the installation position, the projection-forming sheet (C) can be accurately set on the strip-shaped line (A), and the projection-forming sheet (C) is preferably prevented from dropping in the middle.

Further, in the present invention, when the projection-forming sheet (C) laid on the strip-like line (A) is pressed by a pressing means (10), the projection-forming sheet (C) becomes (A) is preferable because it is securely bonded on the upper surface.

Further, in the present invention, the moving distance of the projection processing machine (1) is detected by a distance sensor (11), and at least the projection installation rotor (2) is controlled by a control device (12) based on the signal. It is preferable to automatically control the rotation of. Thereby, the construction of the projection (B) is accurate and easy.

[0017]

Embodiments of the present invention will be described below. FIG. 1 is an explanatory view showing the construction method of the present invention, FIG. 2 is an explanatory view showing a construction machine used in the construction method of the present invention, FIG.
Is a cross-sectional view of a rotor for installing protrusions in the construction method of the present invention, FIGS. 4 and 5 are cross-sectional views of a rotor for installing protrusions showing another embodiment in which holding means of the present invention is used, and FIG. FIG. 7 is an explanatory view showing a connection state with a projection installation rotor, FIG. 7 is a perspective view showing a projection formation sheet of the present invention, and FIG. 8 is a block diagram showing automatic control in a construction method of the present invention.

The construction method of the present invention will be described below with reference to the drawings. First, a flat strip line (A) having a thickness of 1 to 3 mm is constructed on a road surface in advance with a thermoplastic paint. The band-shaped line (A) may be constructed by a conventional method of constructing a lane marking.

Then, a projection-forming sheet (C) in which a number of projections (B) are formed in advance using the same paint as the strip-shaped line (A) is prepared (see FIG. 7). A belt-shaped line (A) is used by using a projection construction machine (1) to which at least a rotor (2), a sheet heating burner (7), and a line heating burner (8) are attached.
A large number of button-shaped protrusions (B) having a circular outer periphery are formed on the rotor. The protrusion-installed rotor (2) has a cylindrical shape as shown in FIGS. Are formed with a large number of slots (2a) into which the projections (B) of the projection forming sheet (C) can be entirely fitted, arranged every 180 degrees in the circumferential direction. The rotor (2) has a hub (2c) at its center and a rotating shaft (3) located at the center.
Is fixed to the hub (2c). Further, a servo motor (4) is connected to one end of the rotating shaft (3), and the rotor (2) for setting a protrusion is intermittently rotated by the servo motor (4). This intermittent rotation is performed by a rotor with a projection (2).
Is rotated so that the slot (2a) temporarily stops at the vertical position, and this is performed by controlling the rotation of the servomotor (4).

As shown in FIGS. 1 and 2, a plate-like holding means (5) provided along the outer periphery of the projection setting rotor (2) is provided on the left side in the rotation direction of the projection setting rotor (2). )
Is provided. The holding means (5) will be described below. The holding means (5) bends a metal plate in accordance with the curvature of the projection setting rotor (2), and separates the metal sheet from the projection setting rotor (2) at appropriate intervals. Fixed to the construction machine (1). The distance is set so that the protrusion forming sheet (C) of the protrusion setting rotor (2) can easily pass through, and the protrusion forming sheet (C) supplied to the upper part of the protrusion setting rotor (2) is laid at the lower laying position. This is for holding the projection setting rotor (2) so as not to be detached from the rotor while being transported.

Thus, the projection constructing machine (1) provided with the projection setting rotor (2) is set on the strip-shaped line (A) and stopped, and the projection-forming sheet (C) is
An operator inserts the protrusion (B) into the slot (2a) located above the protrusion installation rotor (2) that has been intermittently stopped, and supplies the groove.

When the projection setting rotor (2) rotates, the sheet-forming heating sheet (7) provided diagonally above the projection-forming sheet (C) heats the entire back surface of the projection-forming sheet (C) appropriately and forms a plate. While being held on the protrusion setting rotor (2) by the holding means (5), it is moved to a substantially lowermost position. Since there is no plate-like holding means (5) in the vicinity of the lowermost portion, the projection-forming sheet (C) naturally falls on the strip line (A) by its own weight. At this time, the strip line (A) is heated by the line heating burner (8). Therefore, the projection-formed sheet (C) whose back surface is heated falls on the heated strip-shaped line (A), and the opposite side is softened or a part of the surface is dissolved, so that the bonding property is reduced. Good. The sheet heating burner (7) and the line heating burner (8) are connected to a propane gas cylinder (9) by a pipe.

Further, as another embodiment of the holding means (5), as shown in FIGS. 4 to 6, a projection forming sheet (C) is provided at one place on the peripheral surface of the projection setting rotor (2). A plurality of the slots (2a) into which all the projections (B) are fitted, and a plurality of slots (2a) formed near both ends of the projection installation rotor (2) have bottoms formed by projections. A hole (2b) penetrating inside the cavity of the object setting rotor (2) is formed. A sleeve (6) having a through hole (6a) formed between the inside of the hollow portion of the protrusion setting rotor (2) and the rotating shaft (3) is connected to the hole (2b) and the through hole. (6a) is fitted and fixed so as to communicate with each other. Further rotating shaft (3)
, A shaft hole (3a) is drilled in the axial direction from the side opposite to the mounting side of the servo motor (4) to substantially the entire length of the rotor (2), and the shaft hole (3a) and the sleeve (6) are formed. A lateral hole (3b) communicating with the through-hole (6a) is formed. Thus, the structure is such that the slot (2a) and the shaft hole (3a) communicate with each other. In addition, the projection setting rotor (2) and the sleeve (6) are integrally rotated by the rotation of the rotation shaft (3).
Then, as shown in FIG. 6, a non-rotating pipe (5b) connected to a suction device (5a) such as a vacuum device or a decompression device is inserted into the inlet of the shaft hole (3a) of the rotating shaft (3), and an O-ring is inserted. Sealed in (5c). By suctioning with this suction device (5a), the slot (2a) in which the hole (2b) is drilled is brought into a suction state, and in this state, the projections fitted and supplied into the slot (2a) located at the upper part. The formed sheet (C) is held in a suction state on the protrusion setting rotor (2) while being transferred to the lower laying position while being heated by the sheet heating burner (7). Then, when the installation position is reached, the suction device (5
By stopping the suction of a) and releasing the suction state, the projection-forming sheet (C) is changed to the belt-like line (A) by its own weight.
Fall on. Thus, the holding means (5) is suction-held. The control of the suction and the release of the suction may be automatically controlled by the suction device (5a) and the control device (11).

Then, the projection processing machine (1) is connected to the projection (B).
The protrusion forming sheet (C) may be sequentially applied on the strip-shaped line (A) as described above while moving and stopping by the installation interval distance. The movement of the protrusion construction machine (1) may be manual or self-propelled with an electromagnetic clutch equipped with a brake equipped with an engine, and preferably self-propelled allows automatic control. .

In the present invention, there is provided a pressing means (10) for pressing the projection forming sheet (C) dropped on the strip line (A). The pressing means (10) is provided with a soft rubber roller behind the protrusion setting rotor (2) with respect to the traveling direction of the protrusion processing machine (1), and moves with the movement of the protrusion processing machine (1). The upper part of the projection forming sheet (C) that has fallen on the belt-shaped line (A) can be pressed while rotating. This is preferable because the band-shaped line (A) and the projection-forming sheet (C) are securely connected.

Further, in the present invention, it is preferable that at least the protrusion setting rotor (2) automatically performs rotation control corresponding to the moving distance of the protrusion construction machine (1), and this rotation control is shown in FIG. As described above, the moving distance of the protrusion construction machine (1) is detected by the distance sensor (11), the detection signal is processed by the control device (12), and the control device (12) is operated based on the processing data. It controls the projection processing machine (1) and the servomotor (4). More specifically, the distance sensor (11) detects the moving distance of the protrusion construction machine (1). In the present embodiment, the rotation of the wheel (13) is used, and a pulse signal is generated from the rotation. To be removed, specifically the axle (13a) of the wheel (13)
And a distance sensor (11) attached to the gear wheel (not shown). The control device (12)
It mainly has a built-in microcomputer. At least for the servo motor (4) necessary for control,
The intermittent rotation control of the projection setting rotor (2) is performed by a preset program based on the processing data of the detection signal from the distance sensor (11).

Further, as shown in FIG. 8, the control device (12) controls an electromagnetic clutch when the projection processing machine (1) is a self-propelled type, in addition to the control of the servomotor (4) as shown in FIG. In addition, when the holding means (5) and the pressing means (10) have another structure using an actuator, it is preferable to perform automatic control by the control device (12).

[0028]

The present invention has the following effects.

In the present invention, since the projection-forming sheet (C) having the projections (B) in advance is manufactured at the factory, the projections (B)
The shape of the projections (B) is accurate without any deformation, and the arrangement interval of the projections (B) is also accurate, and there is no need to form the projections (B) using paint on site, so that workability is improved. It is not affected by temperature changes in winter or summer. In addition, mass production of the protrusion forming sheet (C) can be performed, and cost can be reduced.

Further, according to the present invention, the projection forming sheet (C) can be automatically transferred to the belt-like line (A) by the projection setting rotor (2) of the projection application machine (1) and laid there. And it can be installed at an accurate position.

In the present invention, since the projection-forming sheet (C) is merely laid on the strip-shaped line (A), automation is easier than in the conventional construction method, and human labor and construction cost are further reduced. be able to.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a construction method of the present invention.

FIG. 2 is an explanatory view showing a construction machine used in the construction method of the present invention.

FIG. 3 is a cross-sectional view of a rotor for setting a protrusion in the construction method of the present invention.

FIG. 4 is an axial cross-sectional view of a projection setting rotor in which a holding means according to another embodiment of the present invention is shown.

FIG. 5 is the same longitudinal sectional view of the present invention.

FIG. 6 is an explanatory diagram showing a connection state between the suction device of the present invention and a rotor for setting a protrusion.

FIG. 7 is a perspective view showing a protrusion forming sheet of the present invention.

FIG. 8 is a block diagram of automatic control according to the present invention.

[Explanation of symbols]

 Reference Signs List A strip-shaped line B protrusion C protrusion formation sheet 1 protrusion construction machine 2 protrusion installation rotor 5 holding means 7 heating burner for sheet 8 heating burner for line 10 pressing means 11 distance sensor 12 control device

Claims (4)

[Claims] 1. A strip line (A) having a thickness of 1 to 3 mm is previously formed on a road surface with a thermoplastic paint, and then a large number of button-shaped protrusions are formed on the strip line (A) using the paint. In the method for constructing a warning-type road line for visually impaired persons forming (B), a projection-forming sheet (C) having a large number of the projections (B) formed on the surface thereof in advance with the paint is prepared. Using a projection installation machine (1) equipped with at least a projection installation rotor (2), a sheet heating burner (7), and a line heating burner (8), which rotate in parallel with the projection installation rotor. After supplying the protrusion forming sheet (C) in a state where the protrusions (B) are fitted on the protrusion setting rotor (2) whose rotation is controlled in accordance with the moving distance of (1), Heated with a heating burner (7) A method for constructing a warning-type road line for the visually impaired, comprising transferring and laying a motive-forming sheet (C) on the strip-shaped line (A) heated by the line heating burner (8). . 2. The projection forming sheet (C) supplied onto the projection setting rotor (2) is transferred to a laying position on the strip-shaped line (A) while being held by holding means (5). 2. The method according to claim 1, wherein the road line is opened at the installation position. 3. The method for constructing a warning-type road line for visually impaired persons according to claim 1, wherein the projection forming sheet (C) laid on the strip-shaped line (A) is pressed by a pressing means (10). . 4. A distance sensor (11) for detecting a moving distance of the projection processing machine (1), and at least a rotation of the projection installation rotor (2) is controlled by a control device (12) based on a signal thereof. The method for constructing a warning-type road line for visually impaired persons according to claim 1, which is automatically controlled.