JPH06108409A - Pavement equipment and method - Google Patents

Abstract

PURPOSE:To improve the efficiency of pavement operation while equalizing the finishing of a pavement surface by mechanizing the pavement operation of a resin. CONSTITUTION:A rake plate 27 rotatable in a surface to be paved is installed at the front end of a rocking arm 4 oscillated left and right by power. The rocking arm 4 is moved left and right while changing the angle of the rake plate 27 to the oscillating arm 4 in response to the direction of movement, thus expanding a resin onto the surface to be paved by the rake plate 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for paving the surface of a stadium track or field with resin.

[0002]

2. Description of the Related Art The surface of the ground or the surface of asphalt cast on the ground is paved with a synthetic resin having elasticity such as urethane so that the competition can be performed regardless of the weather in a stadium or the like. Is being done.

Conventionally, resin paving work is performed manually, and a stretching tool having a plate-like rake plate attached to the tip of a holding rod is used, and two liquids such as urethane are placed on the base asphalt surface. The liquid curable resin is stretched so that the thickness of the resin is uniform by pouring the mixed curable resin and moving it while holding the holding rod with the hand and pressing the plate-shaped member against the underlying surface.

[0004]

However, the area of the stadium to be painted is very large, and the width that can be paved by one worker in one movement is 40 to 50 cm at most. As a result, the work period becomes very long. If the work period is extended, the surface uniformity will be impaired due to changes in weather and temperature during the work. Although it is possible to increase the number of workers in order to shorten the working time, the number of workers and the pavement area are not in proportion to each other, and the working efficiency as a whole does not necessarily improve. Further, there is a possibility that the finish of the pavement surface may differ due to individual differences among workers. Further, in winter and other low temperatures, the viscosity of the resin becomes high, so a large force is required to stretch the resin, and it is necessary for two persons to work on one stretching device.

Furthermore, since the worker must carry out the above work while walking on the paved surface while wearing special shoes that are not buried in the resin, the work itself is difficult and work clothes and It is not preferable as a working environment because the body is stained with resin.

Therefore, an object of the present invention is to mechanize the resin paving work to improve the efficiency of the paving work and to make the finish of the paving surface uniform. Another object of the present invention is to improve the working environment when performing resin paving work.

[0007]

In order to achieve the above-mentioned object, a paving apparatus of the present invention includes a swinging boom attached to a main body of the apparatus so as to be movable parallel to a surface to be paved, and the swinging boom. A horizontal drive device for driving the rocking boom in the left-right direction, a plate-like body attached to the tip of the swinging boom so as to be rotatable in a plane parallel to the surface to be paved about the tip, and the plate-like body It is characterized by comprising a rotary drive device for rotationally driving the body.

Further, in the paving method of the present invention, the tip end of the swing boom mounted so as to be movable parallel to the surface to be paved is centered around the tip and the plane is parallel to the surface to be paved. Prepare a paving device to which a plate is rotatably attached, pour a curable resin on the surface to be paved, move the swinging boom of the paving device to the left and right, and use the plate to move the rocking boom. When the oscillating boom is moved so that the resin is spread over the surface to be paved, the plate-like body is moved with respect to the oscillating boom, and the outer end of the plate-like body with respect to the moving direction of the oscillating boom. It is characterized in that it is inclined so as to be located in front of the extension line of the swing boom.

[0009]

When the swing boom is moved, the plate-like body attached to the tip of the swing boom moves on the surface to be paved.
At this time, the liquid resin is spread by the plate-shaped body, and a resin layer having a predetermined thickness is formed on the surface to be paved. When forming the resin layer, the inclination of the plate-like body relative to the swinging boom is changed as the swing boom moves, and the excess resin is scraped up in front of the plate-like body and used for subsequent resin layer forming work. To be done.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be specifically described below based on embodiments with reference to the drawings.

1 and 2 are a side view and a plan view schematically showing an embodiment of a paving apparatus of the present invention. Paving equipment 1
Is a traveling device 2 having an endless track, a driving unit 3 rotatably provided above the traveling device 2, and a driving unit 3
Swinging boom 4 extending from the front to the swinging boom 4
The rotating mechanism 5 attached to the tip of the
Rake device 7 supported by a slidable support device 6 on the
It has and. The traveling device 2 and the driving unit 3 form a device body.

The operation unit 3 is provided with a power source 8 such as an engine and a hydraulic pump, and various operating devices 9. By operating the operating device 9 by the operator, as in a general small excavation work vehicle, traveling of the device itself, rotation of the driving unit 3,
Controls such as swinging the swing boom 4 to the left and right with respect to the driving unit 3 and tilting up and down. Further, in the present embodiment, the operating device 9 particularly includes a device (not shown) for controlling the turning angle and the like of the turning mechanism 5.

The swing boom 4 has three joint portions 10a to 10c which can be tilted in the vertical direction, and each is driven by a hydraulic cylinder (not shown). The base end of the swing boom 4 is attached to the shaft 12 provided at the front of the operating unit 3 so as to be rotatable left and right, and is rotated left and right by a pair of hydraulic cylinders (not shown). Be moved.

FIG. 3 is a partial perspective view showing an enlarged connecting portion of the swing boom 4 and the rotating mechanism 5. In the rotating mechanism 5, a hydraulic motor 13 rotatable by 360 ° is attached to the frame 14, and a bearing portion 17 provided with two shaft portions 15 and 16 is fixed to the upper end portion of the frame 14 by welding or the like. ing. One shaft portion 15 of the bearing portion 17 is tiltably attached to a tip end of a boom body 18 of the swing boom 4, and the other shaft portion 16 is pivotally attached with a base end portion of a link member 19. The tip of the drive arm 20 of the hydraulic cylinder is rotatably connected to the tip of the support arm 21, and the tip of the support arm 21 whose base end is pivotally attached to the tip of the boom body 18 is pivotally attached to this connection. To be done. An annular fixed protection plate 22 is attached to the lower end of the frame 14. Further, the driven plate 23 is attached to the rotary shaft of the hydraulic motor 13.
Is fixed, and a rotation protection plate 24 facing the fixed protection plate 22 is attached to the upper end of the driven plate 23.

4 (a) and 4 (b) are a front view and a side view showing how the rake device 7 is attached to the rotating mechanism 5. As shown in FIG. A pair of holding plates 25 and 26 are attached so as to sandwich the driven plate 23 of the rotating mechanism 5 by screwing or welding. The lower side of the pair of holding plates 25 and 26 is open, and the sliding plate 28 fixed to the rake plate 27 is vertically slidably mounted in the space S between the pair of holding plates 25 and 26. The rake plate 27 has a width of 1800 m, for example.
m, a height of about 250 mm and a thickness of 3 to 4.5 mm, and the sliding plate 28 has a width of 500 mm and a height of 400 mm.
It is a steel plate of a degree.

At the lower ends of the pair of holding plates 25 and 26, the holding plate 2 projects at right angles to the surfaces of the holding plates 25 and 26.
First stoppers 29 extending in the width direction of 5, 26 and more are provided. Further, second stoppers 30 are provided at both ends in the width direction of the upper end of the sliding plate 28 with a space slightly larger than the width of the holding plates 25 and 26. Therefore, the holding plates 25 and 26 can freely move about 400 mm in the vertical direction with respect to the sliding plate 28 as shown by the arrow. The holding plates 25 and 26, the sliding plate 2
The slidable support device 6 is constituted by 8 and the like.

At the upper end of the rake plate 27, the lower end of the sliding plate 28 and the upper end of the rake plate 27 are sandwiched between a pair of L-angle steel members 31, 32 and fixed by welding. Further, a pair of rotating rollers 33 having a rotation axis parallel to the extending direction of the rake plate 27 are attached to both ends of the lower end of the rake plate 27. The distance between the ground surface of the rotary roller 33 and the lower end of the rake plate 27 is set to, for example, about 15 mm depending on the thickness of the resin to be paved.

Next, the procedure for paving the resin with the above-mentioned paving apparatus will be described, for example, in the case of placing the resin on the asphalt with a width of 10 m and paving a 400 m track runway.

First, an operator gets on the driver's seat 3 of the pavement apparatus 1 and operates the operating device 9 to operate the traveling device 2 to move it to the end portion of the truck, while the swinging boom 4 is moved to one side. For example, as indicated by reference numeral P ₁ in the schematic view of FIG. 5A, the right end is swung by an angle θ ₁ , for example, 70 degrees. It should be noted that this angle θ ₁ is a right and left swinging angle with the angle when the swing boom 4 is at the center being 0 °. The angle θ ₁ is positive when it is swung to the right and negative when it is swung to the left. Further, the operating device 9 is operated to operate the rotating mechanism 5 to tilt the rake device 7 with respect to the swing boom 4 by a predetermined angle θ ₂ , for example, 45 degrees.
The angle θ _{2 is} also positive when the outer tip of the rake device 7 swings to the right and negative when it swings to the left. Note that, also in the following description, the operator operates the operating device 9 to move the pavement device 1, move the swinging boom 4 up and down and swing, and rotate the rake device 7.
It is performed by operating.

Next, the swing boom 4 is lowered to bring the lower end of the rake plate 27, more precisely, the lower end of the rotating roller 33 into contact with the surface to be paved. At this time, as shown in FIG.
The stopper 30 of the sliding plate 28 when it is in contact with the ground.
Is adjusted to be an intermediate height between the space S portions of the pair of holding plates 25 and 26.

Next, after mixing and pouring two-component mixed curable urethane composed of a main agent and a curing agent into the moving range of the rake plate 27, the swing boom 4 is moved as shown by an arrow A in FIG. Move to the left at a substantially constant speed. As a result, the liquid resin is spread by the rake plate 27 onto the surface to be paved (in this case, the asphalt surface).

When moving the rake plate 27, the rake plate 2
Since the rotating roller 33 of 7 rotates while contacting the ground,
The rake plate 27 can be moved with a small force, the distance between the lower end of the rake plate 27 and the ground can be kept constant by the diameter of the rotating roller 33, and the resin can be paved with a constant thickness. The surplus resin is pushed forward by the rake plate 27 and sent forward (in the traveling direction of the rake plate 27).

At the start of the movement of the rake plate 27, the rake plate 27 is tilted to the right with respect to the swing boom 4, that is, the angle θ ₂ is positive, but the rake plate 27 moves to the left. Then, the operating device 9 is operated to gradually rotate the rake plate 27 to the left as indicated by arrow B.
Therefore, the rake plate 27 inclines to the left with respect to the swing boom 4, that is, the angle θ ₂ becomes negative. The swing angle θ ₁ of the swing boom 4 and the rake plate 2 for the swing boom 4
The inclination angle θ _{2 of} 7 has a relationship as shown in FIG. For example, when θ ₁ = 50 degrees (angle at the right end), θ
₂ = 15 degrees, θ ₂ = 0 degrees when θ ₁ = 40 degrees, θ ₂ = 45 degrees when θ ₁ = 0, while the swinging boom 4 is moving in the left side area. Is substantially maintained at this angle. That is, since resin easily accumulates on the left and right ends of the track, when the rake plate 27 starts moving, it is once pushed out to the side opposite to the traveling direction of the device and then the rake plate 2 is moved.
In most of the moving sections of 7, it is taken inward. It should be noted that the values of the angles θ ₁ and θ ₂ are not strict, and it is sufficient that they generally show such a tendency.

As described above, when the rake plate 27 is moved, the rake plate 27 is moved relative to the oscillating boom 4 in the most moving area, and the outer end of the rake plate 27 oscillates in the moving direction of the oscillating boom 4. Since it is inclined so as to be positioned in front of the extension line of the movable boom 4, excess resin is prevented from escaping to the outside with the movement of the swinging boom 4, and the resin is moved within the moving range of the rake plate 27. You can pull it back inside. Further, as the moving distance of the rake plate 27 becomes longer, the resin easily escapes to the outside, but in the present embodiment, the inclination angle of the rake plate 27 is further changed according to the swing angle of the swing boom 4. Therefore, the escape of the resin can be prevented more reliably.

Further, since the swing boom 4 is slidable in the vertical direction with respect to the rake plate 27, the vertical boom generated when the device travels or when the swing boom 4 moves left and right. The directional vibration is absorbed as a slip between the holding plates 25 and 26 and the sliding plate 28 in the slidable support device 6, and unnecessary vibration is not transmitted to the rake plate 27. Therefore, the surface of the resin is formed smoothly.

When the swinging boom 4 reaches the left end as indicated by the reference symbol P ₂ in FIG. 5, the movement of the swinging boom 4 is stopped, and the rake plate 27 is kept in contact with the ground.
The paving apparatus 1 is moved by the traveling apparatus 2 in the extension direction of the truck indicated by the arrow C by a predetermined distance, for example, 100 cm, and brought into the state indicated by the reference symbol Q ₁ . Next, the operating device 9
Is operated to drive the rotating mechanism 5 to rotate the rake plate 27 from the posture shown by the alternate long and short dash line to the left as shown by the arrow D, and bring the state shown by the broken line in FIG. That is,
The posture is made symmetrical with the posture at the start point indicated by reference numeral P ₁ . However, the position of the device in the traveling direction is different. Then, as shown by the arrow E, the rake plate 27 is moved from the left end to the right end.

Thereafter, the device is intermittently run while reciprocating the rake plate 27 to the left and right in the same manner, and liquid urethane is replenished at predetermined intervals, so that the resin is cast on the ground with a uniform thickness. .

For example, when the swing boom 4 has a length of 5 m and the left and right swing angles of the swing boom 4 are ± 60 degrees, one movement of the swing boom 4 causes a track having a width of 10 m to have a width of 150 cm. Can be paved with The time required to move the rake plate 27 once and to run the device once is about 2 minutes, and even if the time for replenishing the resin is included in the middle,
It takes about four days to pave a 400m truck. In the conventional manual work, it took eight days to paint the same area, but according to this embodiment, the work time was reduced to about 1/2. In addition, all the work itself can be done while riding in the driver's seat 3,
The working environment is improved.

FIG. 7 shows another example of the mounting structure of the rotary roller. The figure (a) shows a side view, and the figure (b).
[Fig. 4] is a partial front view of the same figure (a) seen from the direction of arrow X.
The rotating roller 41 is rotatably attached by a shaft 43 to the lower end of a cylindrical rotating leg portion 42 whose lower end is bent in a J shape. A cylindrical fixed leg portion 44 having a diameter slightly larger than that of the rotary leg portion 42 is loosely fitted on the upper portion of the rotary leg portion 42. The upper end of the fixed leg portion 44 is closed or provided with a suitable bearing (not shown), and the fixed leg portion 44 is rotatably supported while keeping the rotary leg portion 42 in the vertical direction. To do. The fixed leg portion 44 includes three support legs 45 that are planted on the side surfaces near both ends of the rake plate 27.
Of the upper support legs 45, 46, the rotary legs 42 are rotatably supported by the lower support leg 47. 8A and 8B are sectional views taken along line AA and BB in FIG. 7, respectively. A screw 48 is cut on the upper portion of the fixed leg portion 44, and a pair of nuts 49 and 50 are attached to the screw 48 so as to sandwich the annular portion 45 a of the support leg 45.

The annular portions 45a and 46a are not directly fixed to the fixed leg portion 44, but the annular portion 45 of the support leg 45 is not fixed.
The fixed leg portion 44 is fixed to the support leg 45 by tightening a with the pair of nuts 49 and 50. Further, by changing the tightening positions of the nuts 49 and 50, the distance L between the lower end of the rake plate 27 and the ground (asphalt surface) can be changed to change the pavement thickness of the resin.

When the rotary roller mounting structure as shown in FIG. 7 is used, the rotary leg portion 42 rotates in the direction in which the friction by the rotary roller 41 is minimized according to the moving direction of the rake plate 27. Therefore, the force required to move the rake plate 27 can be reduced. For example, when the rake plate 27 moves to the left in FIG. 7, the rotation roller 41 has the posture shown by the solid line, and when it moves to the right, it has the posture shown by the broken line. Also, the rake plate 27
Since the rake plate 27 is smoothly moved, unnecessary movement such as vibration does not occur in the rake plate 27, and the surface of the resin becomes smooth.

[0032]

As described above, in the present invention, a rotatable plate member is attached to the tip of the swing boom,
Since the pavement is made of resin while changing the angle of the plate-like body, the paving work can be mechanized, and the work efficiency is significantly improved. In addition, the finished product becomes uniform.
Further, since the worker does not directly contact the resin, the working environment is improved.

[Brief description of drawings]

FIG. 1 is a side view schematically showing an example of a paving apparatus of the present invention.

FIG. 2 is a plan view schematically showing an example of the paving apparatus of the present invention.

FIG. 3 is a partial perspective view showing, in an enlarged manner, a connecting portion between the swing boom and the rotating mechanism.

FIG. 4 is a view showing how a rake plate is attached to a rotating mechanism.

FIG. 5 is an explanatory view showing a procedure for paving resin with a paving apparatus.

FIG. 6 is a graph showing the relationship between the swing angle of the swing boom and the inclination angle of the rake plate with respect to the swing boom.

FIG. 7 is a diagram showing another example of a mounting structure of a rotating roller.

8 is a sectional view taken along line AA and BB of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Paving device, 2 Running device, 3 Driving part, 4 Oscillating boom, 5 Rotating mechanism, 6 Sliding support device, 7 Rake device, 8 Power source, 9 Operating device, 10a-10c Joint part, 12 Shaft part , 13 hydraulic motor, 14 frame,
15, 16 shaft part, 17 bearing part, 18 boom body, 1
9 link member, 20 drive arm, 21 support arm, 22 fixed protection plate, 23 driven plate, 24 rotation protection plate, 25, 26 holding plate, 27 rake plate, 28 sliding plate, 29 first stopper, 30th 2 stoppers,
31, 32 L angle steel, 33 rotating roller, 41
Rotary roller, 42 rotary leg, 43 shaft, 44 fixed leg, 45-47 support leg, 45a-47a annular part, 4
8 screws, 49,50 nuts

Claims (2)

[Claims] 1. A swinging boom attached to a main body of the apparatus so as to be movable in parallel to a surface to be paved, a horizontal drive device for driving the swinging boom in the left-right direction, and a tip end of the swinging boom. A paving apparatus comprising a plate-shaped member mounted rotatably in a plane parallel to the surface to be paved with the tip as a center, and a rotary drive device for rotationally driving the plate-shaped member. . 2. A plate-like body which is rotatable about a tip of a swinging boom mounted parallel to a surface to be paved in a plane parallel to the surface to be paved. On the surface to be paved by the plate-shaped body, prepare a paving device with a pavement installed, pour a curable resin on the surface to be paved, move the swinging boom of the paving device to the left and right. When the swing boom is moved, the plate-like body is moved relative to the swing boom, and the outer end of the plate is an extension line of the swing boom with respect to the moving direction of the swing boom. A pavement method characterized by inclining the vehicle so that it is positioned further forward.