JPH05321210A - Road mark applying machine - Google Patents

Abstract

PURPOSE:To make opening and closing of a coating shoe shutter interlockingly with elevation and sinking of a coating shoe by structuring a road surface marking machine so that a shoe rod rotates interlocked with the operation of a fluid pressure cylinder device for opening and closing of the shoe shutter. CONSTITUTION:A shoe rod 42 for elevation and sinking of shoe is secured to a coating shoe 6, and the tip of a piston rod 52 of a fluid pressure cylinder device to make opening and closing of a shoe shutter is fixed by a pin to a crank 22 which is pivoted at one end of a rod 23 for opening and closing of the shoe shutter so that the shoe rod 42 rotates interlocking with the operation of the cylinder device. Thus a road surface marking machine is constructed. To shut the shoe shutter 11, the crank 22 is rotated by a pressure air to push right the rod 23, and another crank 24 is rotated and pressed to the left. Even after the cranks and rods are stopped, the pressure air intrudes so as to contract the cylinder, and a guide pipe 27 moves right together with the cylinder. As a result, the shoe rod 42 moves together, and the shoe 6 rotates round a fulcrum 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating shoe shutter opening / closing device for a road coating machine in which opening / closing of a coating shoe shutter and raising / lowering of the coating shoe itself are interlocked.

[0002]

2. Description of the Related Art Among road marking coating machines, a side view of a conventional construction machine of what is called a hand pushing construction machine is shown in FIG.
In FIG. 4, a coating material tank 5 is provided at the front end and a trolley 1 having a hand-pushing handle 2 at the rear end is provided with an application shoe 6 on the side of the trolley 1 and a bead sprinkler 7 at the rear of the trolley 1. A material transfer toy 8 is provided between the tank 5 and the coating shoe 6. While the construction machine is moving, the coating shoe 6 is hung on the hook 15 by the worker and is separated from the ground 40.

After the coating shoe 6 is detached from the hook 15 and grounded, in order to use this to draw a road marking, first the shutter 9 of the coating material tank is opened by the lever 16 and the coating material tank 5 is opened by the transfer toy 8. From the shoe to the shoe 6,
Next, operate the shoe lever 12 'to operate the shoe shutter 1
1 is opened, and at the same time, the hand push handle 2 is pushed by the body to advance the construction machine, and immediately thereafter, when the bead sprinkler 7 reaches the coating surface coated by the coating shoe, the shutter 13 of the bead sprinkler 7 is moved to the lever 14 '. Operate to open and continue to move forward. In addition, 4 has shown the bead tank.

When finishing the application marking, first stop the forward movement and stop the construction machine, and at the same time, close the shutter 11 of the application shoe 6 by the lever 12 ', and immediately after that, lift the application shoe 6 and hang it on the hook 15. When the bead sprinkler 7 reaches the end of the coating surface by moving forward again, the shutter 13 of the bead sprinkler 7 is closed by operating the lever 14 ', and at the same time the construction machine is stopped.

[0005]

As described above, in the conventional road marking machine, operations such as lifting and applying the application shoe itself to the hook and detaching the application shoe from the hook and grounding the opening and closing of the application shoe shutter are performed. Had to do. The present invention seeks to obtain an apparatus capable of performing both of these operations in one operation.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a coating shoe with a shoe rod for raising and lowering a shoe, and a crank pivotally supported at one end of the rod for opening and closing the coating shoe shutter. A road marking coating machine in which the tip of the piston rod of the fluid pressure cylinder device for opening and closing the coating shoe shutter is pinned, and the shoe rod rotates in conjunction with the operation of the fluid pressure cylinder device is obtained. It is a thing.

[0007]

1 is a side view of an example of a coating machine to which the present invention is applied, FIG. 2 is a plan view, 1 is a trolley, 2 is a hand handle, 3 is an LPG cylinder, 4 is a bead tank, 5 Is a coating material tank, 6 is a coating shoe, 7 is a bead sprayer, 8 is a transfer toy, 9 is a coating material tank shutter, 10 is a coating material tank shutter cylinder, 11 is a coating shoe shutter section,
12 is a coating shoe shutter cylinder, 13 is a bead sprayer shutter part, 14 is a bead sprayer shutter cylinder, 15 is a hook for hanging the coating shoe, 16 is a coating material tank shutter manual lever, 17 is a chain for lifting the coating shoe, and 18 is An engine, 19 is a compressor, and 20 is a valve lever. The LPG cylinder is for heating the coating material in the coating material tank and the coating shoe so as not to cool. 40 indicates the ground.

FIG. 5 is an explanatory view showing the arrangement of each equipment shown in an example of the coating machine to which the present invention is applied shown in FIGS. 1 and 2.
FIG. 6 is an explanatory view of an embodiment of the opening / closing mechanism of the coating shoe shutter and the automatic lifting mechanism of the coating shoe of the present invention. In FIG. 5, the compressed air generated by the compressor 19 driven by the engine 18 is sent to each working cylinder by piping. In the figure, a solid line 50 and a two-dot chain line 50 'show two types of piping in which the flow direction of the compressed air is switched by the valve lever 20 and different. That is, when the valve lever 20 is switched, the compressed air is, for example, a solid line 50.
Enter the pipe to the coating material tank shutter cylinder 1
0, shoe shutter cylinder 12, bead shutter cylinder 14, etc., and returns at the two-dot chain line 50 '. Switching the valve lever 20 reverses the flow of compressed air. Further, as described above, it is necessary to delay the start and the end of the bead spraying by the distance that the coating machine corresponds to the distance between the coating shoe and the bead sprayer as compared with the start and the end of the coating of the coating material. As such, a delay device 21, 21 'is provided in the pipe section going to the bead dispenser shutter. Each operating cylinder can be operated simultaneously by the valve lever 20, but a cock may be provided in the middle of the pipe so that only an arbitrary cylinder can be operated.

Next, an embodiment of a mechanism for simultaneously opening and closing the coating shoe shutter 11 and raising and lowering the coating shoe 6 according to the present invention will be described with reference to FIG. In FIG. 6, the solid line shows the case where the coating shoe 6 is in contact with the ground 40.
If the application shoe shutter 11 is closed to stop the application, the compressed air will be released from the shoe shutter cylinder 1.
In the direction of contracting it to 2, turn the crank 22 counterclockwise and push the rod 23 to the right, this time the crank 24 rotates clockwise, pushing the shutter 11 to the left and closing the shutter. .. When the shutter 11 closes,
The compressed air continues to move in the direction of contracting the cylinder, while the crank and rod stop moving further. Meanwhile shoe 6
The guide pipe 27 is slidably fitted to the shoe rod 42 fixed to the. Further, the stopper 29 of the guide pipe 27 is fixed on the rod 42, and the resistance spring 2 is provided between the shoe side of the guide pipe 27 and the spring retainer 43.
6 is interposed. Further, the tail portion 25 of the cylinder 12 is connected to the guide pipe 27 by a connecting piece 44.

As described above, even after the shoe shutter 11 is closed and the cranks and rods have stopped moving, the compressed air enters the cylinder so as to contract the cylinder, and this time the cylinder itself resists the resistance spring 26. Then, the guide pipe 27 moves rightward (a direction in the figure) together with the cylinder. Then, since the chain 17 is stretched between the chain fixing portion 45 of the airframe and the guide pipe 27, if the guide pipe moves on the shoe rod 42 in the right direction of the drawing, that is, in the direction a, the chain 17 and the guide pipe 27 will be separated. Is the fixed part 45
Is rotated counterclockwise about the center of the guide pipe 27, so that the shoe rod 42 in which the guide pipe 27 is fitted also moves together with the guide pipe, and the shoe 6 moves around the fulcrum 28 in the direction of the arrow b.
Since it is rotated in the direction (clockwise) shown in Fig. 3 and is lifted up to the position shown by the chain double-dashed line in the figure, it can be hung on the hook if necessary.

When the coating shoe is located at the position indicated by the chain double-dashed line in FIG. 6 (corresponding reference numeral is a dash), when the coating marking is to be started, the valve lever is switched to
The compressed air flows so as to extend the cylinder 12. Then, the air pressure on the opposite side, which is pressing the cylinder 12 so as to be contracted, is released, so the spring 26 pushes the guide pipe 27 to the left side (that is, the direction shown by the arrow c) in the figure and moves on the shoe rod 42. And hit the stopper 29 until it stops. Then, the chain 17 is rotated clockwise around the fixed portion 45, and the cylinder 12 and the shoe 6 are also rotated as shown by the arrow d, and come to the position indicated by the solid line to be grounded. Then, as the cylinder 12 extends, the piston rod 52 moves to the right as indicated by the arrow e, the crank 22 rotates clockwise, the rod 23 moves to the left, the crank 24 rotates counterclockwise, and the shutter 11 moves to the right. Pull to open.

FIG. 7 shows an embodiment in which the raising and lowering of the shoe is different from the embodiment of FIG. 6 and the raising and lowering rod 47 attached to the shoe rod is moved up and down by the fluid pressure cylinder 32 as indicated by arrow R, in addition to the opening and closing of the shoe shutter. There is.

[0013]

EFFECT OF THE INVENTION The coating indicator of the present invention has the above-mentioned structure, and can open and close the coating shoe shutter and raise and lower the coating shoe in a single operation by operating the valve lever.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a coating machine of the present invention,

FIG. 2 is a plan view,

FIG. 3 is a side view of a conventional coating machine,

FIG. 4 is a plan view thereof,

FIG. 5 is an explanatory diagram of a circuit of the coating machine,

FIG. 6 is an explanatory view of an opening / closing mechanism of a shoe shutter according to an embodiment of the present invention,

FIG. 7 is an explanatory view of another embodiment of means for lifting the shoe.

[Explanation of symbols]

 1 Cart 2 Handwheel 3 LPG cylinder 4 Bead tank 5 Coating tank 6 Coating shoe 7 Bead sprayer 8 Toy 9 Coating tank shutter 10 Coating tank shutter cylinder 11 Coating shoe shutter 12 Shoo shutter cylinder 13 Bead sprayer shutter 14 Beads Shutter cylinder 15 Hook 16 Coating material tank shutter Manual lever 17 Chain 18 Engine 19 Compressor 20 Valve lever 21 Throttle valve 22 Crank 23 Rod 24 Crank 25 Tail part 26 Resistance spring 27 Guide pipe 28 Support point 29 Stopper 32 Cylinder 40 Ground 42 Shoe rod 43 Spring retainer 44 Connection piece 45 Chain fixing part 47 Lifting rod 50 Piping

Claims (1)

[Claims] 1. The coating shoe is grounded on the road surface when the coating material is applied, the coating shoe is lifted from the road surface at the end of coating, and the opening and closing of the coating shoe shutter and the raising and lowering of the coating shoe itself are interlocked. In the road marking coating machine, a shoe rod 42 for raising and lowering the shoe is fixed to the coating shoe 6, and a crank 22 pivotally supported at one end of a rod 23 for opening and closing the coating shoe shutter is provided with a fluid pressure cylinder device for opening and closing the coating shoe shutter. A road marking coating machine characterized in that a tip of a piston rod 52 is pinned so that the shoe rod 42 can rotate in conjunction with the operation of the fluid pressure cylinder device.