JP2920019B2 - Paving apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for paving a track or a field of a stadium with a 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 an elastic synthetic resin such as urethane so that a game can be played regardless of the weather in a stadium or the like. That is being done.

Conventionally, resin paving work has been performed manually, using a stretching device in which a plate-shaped rake plate is attached to the tip of a holding rod, and using a two-liquid such as urethane on the base asphalt surface. The liquid resin is stretched so that the thickness of the resin becomes uniform by flowing the mixed-curable resin, holding the holding rod with a hand, and moving the plate while pressing the plate against the base surface.

[0004]

However, the area of the stadium to be painted is very large, whereas the width that a single worker can pave in one movement is about 40 to 50 cm at most. Because of this, the working period becomes very long. If the work period is extended, the uniformity of the surface is impaired due to a change in weather or a change in temperature during the work. To reduce the work time, it is conceivable to increase the number of workers, but the number of workers and the pavement area are not simply proportional, and the work efficiency as a whole is not necessarily improved. Further, there is a possibility that a difference in finish of the pavement surface may occur due to individual differences among workers. Furthermore, in a low temperature season such as winter, the viscosity of the resin increases, so that a large force is required to stretch the resin, and it is necessary to work one stretching tool by two people.

[0005] Furthermore, the worker must wear the special shoes that are not buried in the resin, and perform the above-mentioned work while walking on the pavement surface. Since the body is stained with resin, it is not preferable as a working environment.

[0006] Therefore, the present invention is to mechanize the paving resin, increase the efficiency of the paving work, on the pavement specifications <br/> is aimed to Rio uniform. Another object of the present invention is to improve a working environment when performing a resin paving work.

[0007]

In order to achieve the above object, a paving device according to the present invention has a swinging boom mounted on a body of the device so as to be movable in parallel with a surface to be paved, and the swinging boom. and a horizontal driving unit for turning the drive in the left-right direction, predetermined to pivotally and vertically in a plane parallel to the plane to be paved around the tip to the distal end of the swing boom
A plate-like body movably attached to a distance ,
Attach to the plate to keep the lower end at a certain distance from the ground
And a rotating drive device for rotating the plate-shaped body. Lower end of the plate
To change the distance of the part from the ground so that it can be set.
A means to adjust the height of the rotating roller
Is also recommended.

Further, the pavement method of the present invention provides
The paving system is prepared according to, pouring the curable resin on to be paved surface, the by the plate-like body of the swing boom is moved to the left and right push on the surface to be paved the resin of said paving device When the rocking boom is moved so as to be spread, the plate-shaped member is moved forward with respect to the rocking boom with respect to the moving direction of the rocking boom. It is characterized in that it is inclined so as to be located at.

[0009]

When the swinging boom is swiveled, the plate attached to the tip of the swinging boom moves on the surface to be paved. At this time, the liquid resin is spread by the plate-like body, and a resin layer having a predetermined thickness is formed on the surface to be paved.
When the swinging boom is swiveled, the plate-shaped body rotates.
Activating the rolling drive device, the plate-shaped body against the swinging boom
With its outer tip swinging in the direction of movement of the swinging boom.
Tilt it so that it is forward of the boom extension.
With this, the surplus resin is raked in front of the plate-like body,
The collected resin is used for the subsequent resin layer formation work.
Used without waste. Also, the plate-like body is at the tip of the swing boom.
Swinging because it is mounted to be vertically movable
The vertical vibration of the boom is not transmitted to the plate,
Therefore, the surface of the resin is leveled smoothly. Furthermore, the board
Since a rotating roller is attached to the lower end of the plate, the plate
It can be moved with a small force and beneath the plate
The distance between the edge and the ground is kept constant,
It is possible to keep the thickness constant.

[0010]

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

FIGS. 1 and 2 are a side view and a plan view schematically showing an embodiment of a pavement device according to the present invention. Paving equipment 1
Is a traveling device 2 having an endless track, an operation unit 3 rotatably provided above the traveling device 2, and an operation unit 3
Swinging boom 4 extending forward from the
Rotating mechanism 5 attached to the tip of the
Rake device 7 supported through a slidable support device 6
And The traveling device 2 and the driving unit 3 constitute an apparatus main body.

The operating section 3 is provided with a power source 8 such as an engine and a hydraulic pump and various operating devices 9. When the operator operates the operating device 9, the traveling of the device itself, the rotation of the driving unit 3,
The swing boom 4 is controlled to swing left and right with respect to the driving unit 3 and tilt up and down. Furthermore, in the present embodiment, the operating device 9 includes a device (not shown) for controlling, in particular, the turning angle of the turning mechanism 5.

The swinging boom 4 has three joints 10a to 10c which can be tilted up and down, and each is driven by a hydraulic cylinder (not shown). The base end of the swinging boom 4 is attached to a 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 an enlarged partial perspective view showing a coupling portion between the swinging boom 4 and the rotating mechanism 5. As shown in FIG. In the rotating mechanism 5, a hydraulic motor 13 that can rotate 360 ° is attached to a frame 14, and a bearing 17 provided with two shafts 15 and 16 is fixed to the upper end of the frame 14 by welding or the like. ing. One shaft portion 15 of the bearing portion 17 is tiltably attached to the tip of a boom body 18 of the swinging boom 4, and the other shaft portion 16 has a base end of a link member 19 pivotally attached thereto. The tip of a drive arm 20 of a hydraulic cylinder is rotatably connected to the distal end of the support arm 21. The distal end of a support arm 21 whose base end is pivotally connected to the distal end of the boom body 18 is pivotally connected to this coupling. Is done. An annular fixed protection plate 22 is attached to the lower end of the frame 14. The rotating shaft of the hydraulic motor 13 has a driven plate 23
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.

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

The lower ends of the pair of holding plates 25 and 26 project at right angles to the surfaces of the holding plates 25 and 26 and
A first stopper 29 is provided extending in the width direction of each of the first and second members 5 and 26 beyond the width thereof. Further, second stoppers 30 are provided at both ends in the width direction of the upper end of the sliding plate 28 at intervals 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 arrows. The holding plates 25 and 26, the sliding plate 2
The slidable support device 6 is constituted by 8 or the like.

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

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

First, an operator gets on the driver's seat 3 of the pavement device 1, operates the operating device 9 to operate the traveling device 2 to move it to the end of the truck, and moves the swinging boom 4 to one side. for example, the angle theta ₁ to the end of the right as indicated by reference numeral P ₁ in the schematic view of FIG. 5, for example, previously shaken by 70 °. The angle θ ₁ is a left and right swing angle with the angle when the swinging boom 4 is at the center set to 0 °.
Note that the angle θ ₁ is positive when swinging right, and negative when swinging left. Further, the operation device 9 is operated to operate the rotation mechanism 5 to incline the rake device 7 with respect to the swing boom 4 by a predetermined angle θ ₂ , for example, 45 ° . Angle θ
_{2 is} also positive when the outer tip of the rake device 7 swings to the right,
It is negative when it swings to the left. In the following description, the traveling of the pavement device 1, the swinging boom 4 up and down and swinging, and the rotation of the rake device 7 are performed by the operator operating the operation device 9.

Next, the swinging boom 4 is lowered to bring the lower end of the rake plate 27, more precisely, the lower end of the rotary roller 33, into contact with the surface to be paved. At this time, the height of the swinging boom 4 is, as shown in FIG.
The stopper 30 of the sliding plate 28 is
Is adjusted so as to be a middle height of the space S portion between the pair of holding plates 25 and 26.

Next, after mixing and pouring a two-component curable urethane composed of a main agent and a curing agent into the moving range of the rake plate 27, the swinging 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 on the surface to be paved (in this case, the asphalt surface).

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

When the rake plate 27 starts moving, the rake plate 27 is inclined rightward with respect to the swinging boom 4, that is, the angle θ ₂ is positive, but the rake plate 27 moves leftward. The rake plate 27 is gradually rotated to the left as shown by the arrow B by operating the operating device 9 in accordance with the operation.
Thus, the rake plate 27 is inclined to the left relative to the swing boom 4, i.e., the angle theta ₂ is negative. The swing angle θ ₁ of the swinging boom 4 and the rake plate 2 with respect to the swinging boom 4
The inclination angle θ _{2 of} 7 has a relationship roughly as shown in FIG. For example, when θ ₁ = 50 ° (the angle at the right end), θ
₂ = + 15 ° , θ ₂ = 0 ° when θ ₁ = 40 ° , θ ₂ = −45 ° when θ ₁ = 0, and the swinging boom 4 moves in the left area. This angle is maintained during the interval. That is, since the 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 in most of the moving section of the rake plate 27, the inner side is moved. To take in. It should be noted that the values of the angles θ ₁ and θ ₂ are not strict, and it is sufficient that these tendencies generally indicate such a tendency.

As described above, when the rake plate 27 is moved, the rake plate 27 is swung with respect to the swinging boom 4 with respect to the moving direction of the swinging boom 4 in most of the moving region. Since the slant is inclined forward of the extension of the moving boom 4, the resin is prevented from escaping to the outside due to the movement of the swinging boom 4, and the resin is moved within the range of movement of the rake plate 27. Can be pulled back inside. Further, as the moving distance of the rake plate 27 increases, the resin easily escapes to the outside. In this embodiment, the inclination angle of the rake plate 27 is further changed according to the swing angle of the swing boom 4. Therefore, escape of the resin can be more reliably prevented.

Further, the swing boom 4 with respect to the vertical direction relative to the rake plate 27 is slidable, when the device is traveling or swinging generated when the swing boom 4 is moved to the left and right The vertical vibration of the moving boom 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.

[0026] swinging boom 4 as shown by reference numeral P ₂ in FIG. 5 reaches the left end of the movement of the swing boom 4 is stopped, in a state contacting the rake plate 27 on the ground,
Predetermined distance in the extending direction of the track indicated pavement device 1 by the arrow C by the traveling device 2, for example, is 100cm moved to the state indicated at 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 dashed line to the left as shown by the arrow D, and bring it into the state shown by the broken line in FIG. That is,
To posture and symmetrical position of the starting point indicated by the 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, while the rake plate 27 is reciprocating to the left and right, the apparatus is run intermittently and liquid urethane is replenished at predetermined intervals, so that the resin is poured on the ground with a uniform thickness. .

For example, assuming that the length of the swinging boom 4 is 5 m and the swing angle of the swinging boom 4 is ± 60 degrees, a single movement of the swinging boom 4 can move a 10 m wide track to a width of 150 cm. Can be paved. The time required for one movement of the rake plate 27 and one run of the apparatus is about 2 minutes, and even if the time for replenishing the resin is included on the way,
The time required to pave a 400 m truck is about four days. In the conventional manual operation, it took 8 days to paint the same area, but according to the present embodiment, the operation time was reduced to about 1/2. In addition, since all the work itself can be performed while riding in the driver's seat 3,
The working environment is improved.

FIG. 7 shows another example of the mounting structure of the rotating roller. FIG. 1A shows a side view, and FIG.
FIG. 3 is a partial front view of FIG.
The rotating roller 41 is rotatably attached by a shaft 43 to a lower end of a cylindrical rotating leg 42 whose lower end is bent in a J-shape. A cylindrical fixed leg 44 slightly larger in diameter than the rotary leg 42 is loosely fitted to the upper portion of the rotary leg 42. The upper end of the fixed leg 44 is closed or provided with a suitable bearing (not shown), and the fixed leg 44 is rotatably supported while the rotating leg 42 is maintained in the vertical direction. I do. The fixed leg portion 44 includes three support legs 45 erected on side surfaces near both ends of the rake plate 27.
The rotating legs 42 are supported by the annular portions 47a of the lower support legs 47 so as to be rotatable. 8A and 8B are cross-sectional views taken along lines AA and BB of FIG. 7, respectively. A screw 48 is cut in the upper part 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.

Although each of the annular portions 45a and 46a is not directly fixed to the fixed leg 44, the annular portion 45
The fixed leg 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, and the resin pavement thickness can be changed.

When a rotary roller mounting structure as shown in FIG. 7 is used, the rotary leg 42 rotates in a direction in which the friction of the rotary roller 41 is minimized in accordance with 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 rotating roller 41 assumes a posture shown by a solid line, and when it moves to the right, it assumes a posture shown by a broken line. Also, the rake plate 27
Is moved smoothly, so that unnecessary movement such as vibration does not occur on the rake plate 27, and the surface of the resin becomes smooth.

[0032]

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

[Brief description of the drawings]

FIG. 1 is a side view schematically showing an embodiment of a pavement device of the present invention.

FIG. 2 is a plan view schematically showing an embodiment of the pavement device of the present invention.

FIG. 3 is an enlarged partial perspective view showing a coupling portion between a swinging boom and a rotating mechanism.

FIG. 4 is a diagram showing a state in which a rake plate is attached to a rotating mechanism.

FIG. 5 is an explanatory view showing a procedure for paving a resin by a paving device.

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.

FIG. 8 is a sectional view taken along line AA and line BB in FIG. 7;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Pavement device, 2 traveling device, 3 operation part, 4 swinging boom, 5 rotation mechanism, 6 slidable support device, 7 rake device, 8 power source, 9 operating device, 10a-10c joint, 12 shaft , 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
Rotating roller, 42 rotating leg, 43 shaft, 44 fixed leg, 45-47 supporting leg, 45a-47a annular portion, 4
8 screws, 49, 50 nuts

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E01C 19/22

Claims (3)

(57) [Claims] 1. A swinging boom (4) movably mounted on a main body of a device so as to be movable in parallel to a surface to be paved, a horizontal drive device for rotating the swinging boom in a left-right direction, and the swinging boom. The end of the boom is rotatable around the tip in a plane parallel to the surface to be paved and a predetermined distance in the vertical direction.
Away movably mounted plate-like body (27), said plate
The plate is maintained at a constant distance (L) from the ground to the lower end of the body.
A pavement device comprising: a rotating roller (33, 41) attached to a body; and a rotation drive device (5) for rotating the plate. 2. The distance of the lower end of the plate from the ground.
(L) can be changed and set.
Means for adjusting the mounting height position of the roller (41) (48-
Pavement according to claim 1, characterized in that it is provided with (50).
apparatus. 3. The pavement device according to claim 1 , wherein a curable resin is poured onto a surface to be paved, and the swinging boom of the pavement device is moved left and right to form the plate-like body. When the rocking boom is moved by pushing the resin on the surface to be paved, the plate-shaped body is moved with respect to the rocking boom, and the outer end thereof moves the rocking boom. A pavement method characterized by inclining in a direction so as to be located forward of an extension of the swing boom.