JPS6151084B2 - - Google Patents

Description

[Detailed description of the invention] <Technical field> The present invention relates to a construction device for sloped surfaces.

<Prior art> Since the running track of a velodrome or an automobile driving test facility is formed on an inclined surface, for example, when asphalt mixture spread on this slope is compressed multiple times using a rolling machine, there is a risk of the rolling machine falling over or Efforts have been made to perform rolling work using a rolling compaction device while preventing slippage.

For example, a tractor is placed on a flat part (hereinafter referred to as the top) formed above an inclined surface, and a rolling machine placed on the inclined surface is controlled by a wire pulled out from the tractor. In addition, a boom is provided at the upper end of the slope, and a wire pulled out from a tractor placed below the slope is latched to the rolling machine via the boom, and the rolling machine is suspended by a wire rope. This is to prevent the rolling equipment from tipping over or sliding down.

However, with this construction method, it has been difficult to carry out repair work because structures such as fences or guardrails are installed at the top of the road in these days when the number of repair works for the running road is increasing.

In addition, the compaction device is supported via a hydraulic cylinder by a crawler tractor placed below the slope, and the compaction device and tractor are individually operated to move approximately parallel to perform the compaction work. be.

However, in this system, the compaction device and the tractor, which are connected by a hydraulic cylinder, are moved in parallel by individual operations by the operator, so for example, the compaction device and the tractor can be moved in parallel to make multiple rotations on substantially the same trajectory. When the courses of the rolling machine and the tractor are changed in opposite directions, it is difficult to make the vehicle speeds substantially the same at the beginning, and as a result, the rolling machine sometimes deviates from the trajectory.

<Object of the Invention> In view of the current situation, the first object of the present invention is to prevent the rolling device from deviating from substantially the same trajectory when changing the course of the rolling device and the support device. The second purpose is to enable the rolling device and the supporting device to run approximately parallel to each other, and further, by making it possible for the supporting device to travel on substantially the same trajectory multiple times, the position of the rolling device and the The third purpose is to facilitate control of the running direction.

<Structure of the Invention> For this reason, the first invention forms a support member that connects the rolling device and the support device so that it can expand and contract freely in a direction substantially perpendicular to the running direction of both devices, and also resists expansion and contraction of the support member. The support member is provided with an elastic member that expands and contracts.

Further, the second invention includes a parallelism detecting means for detecting parallelism between the rolling device and the supporting device, and a parallelism detecting means for detecting the parallelism between the rolling device and the supporting device, and the rolling device and the supporting device are substantially parallel to each other based on a signal from the parallelism detecting device. and an automatic or manual correction means for correcting it so that it becomes correct.

Furthermore, the third invention includes a guide disposed substantially parallel to the locus on which the support device should travel, and a sensor provided on the support device to detect the position of the guide, and Based on this, the support device and the guide are made to run approximately parallel to each other.

<Example> The present invention will be described below based on an example shown in FIGS. 1 to 4.

In FIGS. 1 and 2, a running track such as a velodrome is formed in an inclined manner, and asphalt mixture B is spread on this inclined surface A with a uniform thickness. Asphalt composite material B is placed on the top of this slope A.
A rolling device 1 such as a road roller for rolling is arranged, and a support device 2 such as a tractor for holding the rolling device 1 is arranged at the bottom to prevent the rolling device 1 from falling or sliding down. . Both devices 1 and 2 are arranged so that they can run substantially parallel and in the same direction.

Both devices 1 and 2 are connected by a push-up support device 3 and a cylindrical attachment 4 as a support member.

As shown in FIG. 3A, the push-up support device 3 is provided with a cylindrical member 5 whose base end is rotatably attached to one side of the support device 2.
The tip of the holding member 6 attached to the support device 2
It is loosely fitted into the annular portion 8a and supported by the holding member 8.

One end of a cylindrical attachment 4 is inserted into the cylindrical member 5 so as to be freely slidable in the left-right direction in FIG. 3, and the other end of the attachment 4 is attached to the side of the rolling device 1. It is rotatably attached to a fulcrum moving device 7, which will be described later. Further, a hydraulic cylinder 8 is attached to the cylindrical member 5, and a piston rod 8a of the hydraulic cylinder 8 is attached to a first cylindrical portion 4A (described later) of the attachment 4.

The fulcrum moving device 7 is provided with a mounting plate 9 fixed to one side of the rolling device 1, as shown in FIG. This mounting plate 9 has a first slide plate 1 which is guided by a first guide 10 and is movable up and down as shown in FIG.
1 is provided, and the first slide plate 11 is attached to a piston rod of a hydraulic cylinder 12 attached to the rolling device 1. Further, a second slide plate 14 is attached to the first slide plate 11 and is movable in the left-right direction in FIG. 4 while being guided by a second guide 13.
is attached to a piston rod of a hydraulic cylinder 15 attached to the first slide plate 11.

The tip of the attachment 4 is attached to the first slide plate 11.

As shown in FIG. 3B, the attachment 4 is inserted into the first cylindrical portion 4A that is inserted into the cylindrical member 5, and is slidably inserted into this cylindrical portion 4A, and is moved toward the left in FIG. 3B. It is formed from a relatively movable second cylindrical part 4B, and these first and second cylindrical parts 4A, 4
B is connected by a pair of springs 16. As a result, the attachment 4 is configured to be able to expand and contract freely in the left and right directions in FIG.
is configured to generate a force that resists the expansion and contraction.

A pair of parallelism maintaining cylinders 17a and 17b as correction means are attached to the support device 2, and a wire rope 18 attached to the rolling device 1 is attached to the piston rod of these cylinders 17a and 17b.
The tips of a and 18b are attached respectively.

The holding member 6 is provided with a longitudinal position detecting device 19, and the longitudinal position detecting device 19 detects the deviation between the supporting points 1a and 2a of the rolling device 1 and the supporting device 2 from the inclination of the cylindrical member 5. As a result, deviations of both devices 1 and 2 from the specified positions are detected, and this detection signal is output to a longitudinal position detection gauge 20 provided at the operating level of the rolling device 1 and the support device 2, etc. Thereby, the driver changes the vehicle speed and adjusts the rolling device 1 and the support device 2 to the specified positions.

Further, a parallelism detection device 21 is provided at the tip of the attachment 4, and this parallelism detection device 21
The antenna is touching the side of the rolling device 1, detects the parallelism between the rolling device 1 and the support device 2, and sends this detection signal to a device installed in the driver's seat of the rolling device 1 and the supporting device 2, etc. It is output to the parallelism detection gauge 22. As a result, the driving vehicle can move the parallelism maintaining cylinders 17a, 1
7b is operated to correct the running direction of the rolling device 1 to be approximately parallel to the support device 2, and maintain the rolling device 1 in an appropriate working posture. Note that 8a is a pressure gauge of the hydraulic cylinder 8.

Furthermore, as shown in FIG. 1, a guide 24 for guiding the support device 2 is extended at the bottom of the inclined surface A, and a pair of sensors attached to the front and rear parts of the main body of the support device 2 are attached to this guide 24. 25 are in contact with each other. The sensor 25 outputs a detection signal to a sensor gauge (not shown) provided at a driver's seat or the like. Then, when the output signal values from both sensors 25 deviate, the driver determines that the running direction of the support device 2 is deviated, and corrects the running direction of the support device 2 to a specified direction. That is, the guide 24 and the support device 2 are corrected so that their traveling directions are substantially parallel to each other.

Next, the action will be explained.

This device is used when the degree of inclination of the slope A is large and there is a risk that the rolling device 1 will fall or slide down.

First, a guide 24 is extended to the lower part of the inclined surface A, and the sensor 25 is brought into contact with this guide 24, so that the support device 2 is arranged substantially parallel to the guide 24. Rolling device 1
is arranged on the upper part of the inclined surface A to be rolled, and these two devices 1 and 2 are connected by an attachment 4. At the time of this connection, the rolling device 1 is placed on a flat portion C where the slope A has a gentle slope. Also, the parallelism detection device 21 and the longitudinal position detection device 19 are set.

Here, a wireless communication set is provided between the compaction device 1 and the support device 2, and the drivers of both devices 1 and 2 communicate with each other by radio.

Then, the asphalt mixture B is rolled by the rolling unit 1 while running the rolling unit 1 and the support device 2 substantially in parallel.

At this time, the operators of the rolling device 1 and the support device 2 drive the devices while paying sufficient attention to the longitudinal position detection gauge 20 and the parallelism detection gauge 22. When the relative longitudinal positions of the devices 1 and 2 deviate from the specified positions, the vehicle speeds of the devices 1 and 2 are changed to adjust the devices 1 and 2 to the specified positions, and the rolling device 1 and the support device are adjusted to the specified positions. When the devices 1 and 2 are not running substantially parallel to each other, the hydraulic cylinders 17a and 17b are operated to correct the situation so that both devices 1 and 2 are running substantially parallel to each other. In addition, the driver of the support device 2 pays attention to the sensor gauge and corrects the running direction of the support device 2 when the support device 2 is not running substantially parallel to the guide 24 to guide the running direction of the support device 2. 2
Make it approximately parallel to 4. Therefore, since the support device 2 travels on substantially the same trajectory, the position and traveling direction of the rolling device 1 can be easily confirmed and controlled.

If the rolling device 1 enters the steep slope D from the flat portion C of the slope A, the slope of the rolling device 1 will increase, increasing the risk of the rolling device 1 falling over. By operating the support point moving device 7, the first slide plate 11 is moved upward, and the support point 1a is moved from the chain line position to the solid line position as shown in FIG. As a result, the attachment 4 and the side of the rolling device 1 become substantially orthogonal, so that the component force along the inclined surface A generated in the rolling device 1 can be sufficiently transmitted to the support device 2 via the attachment 4. The rolling device 1 can be sufficiently supported by the support device 2, and the rolling device 1 can be effectively prevented from overturning or sliding down.

Furthermore, when entering the inclined part D from the flat part C, the distance between the rolling device 1 and the support device 2 becomes shorter, so the attachment 4 is moved into the cylindrical member 5 by operating the hydraulic cylinder 8 and the support point 1a is moved. , 1b is gradually reduced so that the rolling device 1 can travel on the trajectory to be rolled.

By repeating this operation, the rolling device 1 is caused to travel back and forth on the same trajectory to be rolled a plurality of times, thereby rolling the asphalt mixture B. In this work, at the beginning when the course of the rolling compaction device 1 is reversed, it is difficult to make the vehicle speeds of the rolling compaction device 1 and the support device 2 substantially the same because they are each operated by the driver. Even if the continuous speeds of both devices 1 and 2 are different, since the attachment 4 is formed to be expandable and retractable, the attachment 4 extends, so that the rolling device 1 can move on the same trajectory to be rolled regardless of the traveling trajectory of the support device 2. It can run, and the asphalt mixture B can be rolled uniformly.

Further, the pair of cylindrical portions 4 of the attachment 4
Since A and 4B are connected by the spring 16, even if a sudden change in force from the rolling device 1 or the support device 2 is transmitted to the attachment 4, that force is absorbed by the spring 16, so that the other side's Impact forces are not transmitted to the device.

In this embodiment, the hydraulic cylinder 8 is used to slightly change the traveling trajectory of the rolling compaction device 1, but when the traveling trajectory, that is, the trajectory to be rolled, is to be significantly changed, for example, as shown in FIG. 3C, By installing a cylindrical attachment 4D between the second cylindrical portion 4B and the attachment 4C on the rolling device 1 side, and changing the attachment 4D to a different length attachment, the connection between the rolling device 1 and the support device 2 can be improved. Adjust distance.

<Effects of the Invention> As explained above, the present invention connects the rolling device and the support device by a freely expandable support member, and also provides the support member with an elastic member that expands and contracts against the expansion and contraction of the support member. Therefore, even when the vehicle speeds of both devices are different when the running direction is changed, for example, the supporting member expands and contracts, so the compacting device can run on the same trajectory regardless of the running direction of the supporting device, and the slope can be evenly covered. Can be compacted. Even if a sudden force from one of the devices is transmitted to the support member, the force is absorbed by the elastic member and is not transmitted to the other device. Furthermore, since the support device can be disposed below the slope, repair work is also facilitated.

Further, since the rolling device and the support device are corrected to be substantially parallel by the correction device based on the signal from the parallelism detection device, the rolling device and the support device can be run substantially parallel to each other.

Furthermore, the sensor detects the position of the guide, which is disposed approximately parallel to the trajectory on which the support device should travel, and the support device is made to travel approximately parallel to the guide, so that the support device travels on approximately the same trajectory. Therefore, it becomes easy to confirm the position and running direction of the rolling device, and it becomes easy to control them.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is a right side view of Figure 1, Figure 3A is an enlarged view of the main part,
Fig. 3B is an enlarged sectional view of Fig. 3A, Fig. 3C is an enlarged view of the main part with a cylindrical attachment for adjusting the distance between devices, and Fig. 4 is a view taken in the direction of - arrow in Fig. 3. be. A... Inclined surface, B... Asphalt mixture, 1... Rolling device, 2... Support device, 4... Attachment, 7...
Support point moving device, 16... Spring, 17a, 1
7b...Parallelism holding cylinder, 21...Parallelism detection device, 24...Guide, 25...Sensor.

Claims (1)

[Scope of Claims] 1. A rolling device that runs on an inclined surface and rolls the slope, a support device that runs substantially parallel to the rolling device, and a support that connects these rolling devices and the support device. In the slope construction device, the support member is formed to be freely expandable and contractable in a direction substantially perpendicular to the traveling direction of both devices, and the support member is provided with an elastic member that expands and contracts against this expansion and contraction. A construction device for sloped surfaces characterized by: 2. A slope construction device comprising a rolling device that travels on a slope and rolls the slope, and a support device that is connected to the rolling device via a support member and supports the rolling device, Parallelism detection means for detecting parallelism between the rolling device and the support device; and correction means for correcting the rolling device and the support device so that they are substantially parallel based on a signal from the parallelism detection device. A slope construction device comprising: 3. A rolling device that runs on an inclined surface and rolls the slope, a support device that is connected to the rolling device via a support member and runs substantially parallel to the rolling device, and a device that the supporting device should run on. a guide disposed substantially parallel to the locus; and a sensor provided on the support device to detect the position of the guide, and based on a signal from the sensor, the support device and the guide are arranged substantially parallel to each other. A construction device for sloped surfaces, characterized in that it is designed to run.