JPH0820908A - Construction car equipped with sand sprayer for paving block - Google Patents

Abstract

PURPOSE:To save manpower by providing a sand-spraying hopper, a leveling plate and a sweeping brush to a paving-laying car in that order in the direction of the advance of the construction car, and filling sand in joints between blocks. CONSTITUTION:In the case after paving blocks V are laid a self-advancing car and joints between the clocks V are filled with sand, a vacuum motion device B is removed. After that, a and sprayer C is equipped to the rear of the body 1, and a sand spraying hopper 25 is filled with sand. Then, size of a sand discharging hole of the hopper 25 is adjusted with a movable plate, etc., to control the dropping amount of sand. The self-advancing car A is driven to drop a fixed quantity of sand on the blocks V and, at the same time, the sand is sent forward with a leveling plate 33 to fill the joints with the sand. In addition, while sweeping up the rest of the sand with a sweeping brush 36, sand is filled in joints again during the sending of the sand forward, the sand left behind is only swept up with the brush 36. According to the constitution, the construction of the blocks and joint execution can be carried out with one construction car, and work efficiency can be promoted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a sanding device capable of both laying a pavement block and filling sand in joints between the laid blocks without manpower. The present invention relates to a pavement block laying vehicle.

[0002]

2. Description of the Related Art The current construction method of pavement blocks is as follows. First, level the ground, add sand, level the sand, manually lay (lay) blocks on it, and then spread the sand on the laid blocks with a scoop, etc., and then The space between the blocks (joint) is filled with sand using bamboo brooms. Then, the remaining sand is swept and collected. As described above, both the work of laying the pavement block and the work of filling the joints between the laid blocks with sand are performed manually, which is inefficient.

Therefore, the applicant of the present invention jointly developed a laying vehicle capable of transporting the pavement block to the laying position and laying the pavement block at the laying position in the same position, and filed as Japanese Patent Application No. 6-60295. I went. According to this paving block laying vehicle, even in a narrow place, the paving block can be moved from the stock section accurately and efficiently, by manipulating the laying vehicle freely and without manpower. .

[0004]

SUMMARY OF THE INVENTION In view of the above situation, the present invention is to install a sanding device on the rear part of a vehicle for laying paving blocks so that not only the paving blocks are laid, but sand is also provided at joints between the blocks. The challenge is to be able to perform packing work without human intervention.

[0005]

Means for Solving the Problem In order to solve this problem, a means adopted by the present invention is that a suspension arm is mounted on a front portion of a vehicle body of a self-propelled vehicle so as to be rotatable in a vertical plane. A gripping tool for gripping the pavement block is hung at the tip of the vehicle, and is gripped by the gripping tool only by the operation of the self-propelled vehicle and the suspension arm by the driver who is boarding the self-propelled vehicle, In a pavement block laying vehicle in which a pavement block suspended at the tip of the suspension arm can be laid at a predetermined laying position, three members, a sand hopper, a leveling plate, and a sweeping brush are laid. This is to manufacture a sanding device attached to the frame in this order along the running direction of the vehicle, and attach the sanding device to the rear part of the vehicle body of the self-propelled vehicle so as to be able to move up and down.

[0006]

When the sanding device is located at the working position with respect to the body of the self-propelled vehicle and the laying vehicle is slowly moved forward, sand is quantified from the sanding hopper on the laid pavement block in a fixed amount. Most of this sand is dropped and is sent forward in a retention state by a leveling plate mounted at the rear of the sand hopper, during which the joints between the blocks are filled with sand. The sand that was not sent forward by this leveling board,
While remaining as it is, while being sent forward while being swept up by the sweeping brush arranged behind the leveling plate,
The joints between the blocks are repacked, and only the remaining sand is swept up by the sweeping brush. In addition, when laying a pavement block, the sanding device mounted on the rear part of the vehicle body of the self-propelled vehicle is raised or removed from the vehicle body.

[0007]

EXAMPLES The present invention will be described in more detail below with reference to examples. 1 is a side view of a vehicle for laying a pavement block equipped with a sanding device according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a partial front view of the same. 1 to 3, a self-propelled vehicle A has a vehicle body 1 provided with four wheels, and front wheels 2 are driving wheels and rear wheels 3 are steered wheels. A steering wheel 4 for steering the rear wheels 3 is provided in the front part of the vehicle body 1, and a seat 5 for the driver M to sit and perform a driving operation is provided behind the steering wheel 4. An engine 6 is mounted behind the seat 5, and a vacuum pump 7 is mounted at the rearmost portion of the vehicle body 1.

Suspension arm support columns 8 are provided at both ends of the front part of the vehicle body 1, and the base ends of the U-shaped suspension arms 9 are connected to the upper ends of the suspension arm support columns 8. It is pivotally attached via a pin 11. A bracket 12 is fixed to each lower end of each suspension arm support column 8, and a bracket 13 is fixed to each proximal end of each suspension arm 9, so that the main body 1 of the hydraulic cylinder 14 is fixed.
The lower end of 4a is pivotally attached to the bracket 12, and the tip of the rod 14b is attached to the bracket 13.
When the rod 14b of the hydraulic cylinder 14 moves in and out, the suspension arm 9 rotates about the connecting pin 11 in a vertical plane.

A suspension ring 16 is attached to a bracket 15 fixed to the tip of the suspension arm 9, and a vacuum suction tool B is suspended on the suspension ring 16 via a plurality of chains 17. In this vacuum suction tool B, as shown in FIGS. 4 and 5, a suspension plate 19 of substantially the same shape is integrally fixed to the upper surface of a square substrate 18 that is slightly smaller than the square paving block V. Then, a rectangular frame-shaped suction cup 21 made of a rubber material is fixed to the peripheral portion of the lower surface of the substrate 18, and is attached to the substrate 18, and a suction hose is attached to the suction cylinder 22 whose lower end opening reaches the lower surface of the substrate 18. 23 is connected. The vacuum suction tool B is contained in the plane of the pavement block V. When the suction cup 21 is brought into close contact with the upper surface of the pavement block V and the space portion formed by the upper surface of the pavement block V, the suction cup 21 and the substrate 18 is sucked through the suction hose 23 by the vacuum pump 7, the space portion is formed. The pavement block V is sucked by the vacuum suction tool B in a state close to a vacuum.

The drive source of this laying vehicle will be briefly described. A plurality of hydraulic pumps (not shown) are driven by the engine 6, and a hydraulic motor for driving the front wheels 2 and a vacuum pump are driven by each hydraulic pump. A hydraulic motor (not shown) for driving 7 is rotated, and the hydraulic cylinder 14 is operated.

A sanding device C is mounted on the rear portion of the vehicle body 1 of the self-propelled vehicle A. This sanding device C is shown in FIG.
As shown in detail in FIG. 8 to FIG. 8, a sand-blasting hopper 25 is arranged at the forefront of a rectangular frame 24, and a plurality of fixing brackets 26 fixed to the front surface and both side surfaces of the hopper 25 are used. It is attached to the frame 24. The discharge port 25a of the sand hopper 25 is provided in a direction orthogonal to the traveling direction P of the laying vehicle, and as shown in detail in FIGS. 9 to 12, the discharge port 25a has a large number of discharge ports 25a. Movable plate 28 also provided with a large number of discharge holes 28a below fixed plate 27 provided with discharge holes 27a.
Is arranged, and by adjusting the size of the discharge hole 27a of the fixed plate 27 by moving the movable plate 28, the amount of sand discharged inside can be adjusted. A bracket 29 is attached to the side surface of the sand hopper 25, and the adjustment bolt 31 inserted into the bracket 29 and the movable plate 2 are attached.
A nut 32 fixed to the lower surface of 8 is screwed, and the movable plate 28 is moved by the rotation of the adjusting bolt 31.

Further, behind the sand hopper 25, a wooden or plastic leveling plate 33 is disposed along a direction orthogonal to the running direction P of the laying vehicle, and a pair of fixing brackets 34 and fixing members are provided. It is attached to the frame 24 via bolts 35. Behind the leveling plate 33, a sweeping brush 36 is arranged in parallel with the leveling plate 33, and a pair of fixing brackets 37 and fixing bolts 38 are provided.
It is attached to the frame 24 via. The sweeping brush 36 is formed by implanting innumerable bristles 41 on a substrate 39.

As shown in FIGS. 7 and 8, the self-propelled vehicle A
On the lower surface of the rear end portion of the vehicle body 1, a pair of support brackets 42 are vertically provided at both end portions in the width direction of the vehicle body, and a rotation shaft 43 is supported by the support brackets 42. A pair of connecting arms 44 are fixed to both ends at the same phase position. The tip ends of the pair of connecting arms 44 are integrally connected via a connecting plate 45, and U-shaped connecting tools 46 for connecting the sanding device C are fixed to the respective tip parts. There is. A hydraulic cylinder 4 for rotating the rotating shaft 43 is provided in front of the one connecting arm 44.
7 are provided. That is, the main body 4 of the hydraulic cylinder 47
The base end of 7a is pivotally attached to a bracket 48 suspended from the vehicle body 1, and the tip end of a rod 47b thereof is pivotally attached to the tip end of an arm 49 whose base end is fixed to the rotating shaft 43. They are connected via a pin 51.

The front portion of the frame 24 constituting the sanding device C is inserted into the pair of connecting members 46, and the front portion of the frame 24 and each connecting member 46 are connected by the pair of connecting pins 52. The sanding device C is attached to the rear part of the vehicle body 1 of the self-propelled vehicle A via a pair of connecting arms 44. And
When the rod 47b of the hydraulic cylinder 47 is moved in and out, a pair of connecting arms 44 connecting the sanding device C is connected.
Is rotated about a rotation shaft 43, and the sanding device C is moved up and down. Thereby, the sand spreader C connected to the pair of connecting arms 44 can be positioned at the optimum height.

Using the above-mentioned laying vehicle, a paving block V
In order to lay, the sand blasting device C is not attached to the rear portion of the vehicle body 1 of the self-propelled vehicle A, and the following steps are performed. The driver M gets into the self-propelled vehicle A, runs the self-propelled vehicle A to a portion where the pavement block V is stocked, and by the vacuum suction tool B suspended at the tip of the suspension arm 9 at this portion. Adsorb the pavement block V and lift it. Then, the laying vehicle is run on the already laid pavement block V and is positioned almost directly above the laying position of the pavement block V. In this state, as shown in FIG. By the driver M getting in the vehicle, the suspension arm 9 suspending the paving block V at its tip is rotated downward so that the paving block V is adjacent to each of the front, rear, left and right blocks already laid, and thereafter. When the suction reaching the vacuum suction tool B is cut off, the pavement block V is separated from the vacuum suction tool B and laid at a predetermined position.

After the paving block V is laid by the laying vehicle as described above, the sand S is filled in the joints 53 between the blocks V by using the laying vehicle as follows. . First, the vacuum suction tool B suspended from the tip of the suspension arm 9 via the chain 17 is removed, the suspension arm 9 is lifted to the highest position, and the rear portion of the vehicle body 1 is moved as described above. The sanding device C is attached to the pair of connecting arms 44. The sanding hopper 25 is filled with sand S, and the discharge hole 27a of the fixed plate 27 is provided by the movable plate 28 arranged at the discharge port 25a.
The size of the sand S is adjusted to adjust the drop amount of the sand S. In this state, when the laying vehicle is run on the already laid block V, a certain amount of sand S is dropped from the sand hopper 25 onto the laid paving block V, and this sand S
Most of the sand is sent forward in a stagnant state by the leveling plate 33 attached to the rear of the sand hopper 25, during which the joints 53 of the pavement block V are filled with sand S. The sand S which has not been sent forward by the leveling plate 33 remains as it is, and is swept up by the sweeping brush 36 attached to the rear side of the leveling plate 33 while being forwarded while being transferred to the joint 53. It is re-packed and only the remaining sand is swept up by the sweeping brush 36.

In the example shown in FIGS. 13 and 14, one connecting arm 44 and the frame 2 constituting the sanding device C are used.
The connecting metal fitting 54 is interposed between the front connecting part of No. 4 and the sanding device C inclining with respect to the direction orthogonal to the traveling direction P of the laying vehicle. As a result, the excess sand S staying in front of the leveling plate 33 and the sweeping brush 36 is brought close to the rear end of the leveling plate 33 and the sweeping brush 36 to form a strip shape. Since it remains on the pavement block V, excess sand S can be prevented from staying in front of the leveling plate 33 and the sweeping brush 36. The band-shaped sand S ′ left on the side of the sanding device C is collected and used by the leveling plate 33 when the laying vehicle passes through this portion. The means for mounting the sanding device C on the rear portion of the vehicle body 1 of the self-propelled vehicle A in the inclined state as described above is not limited to the fitting 54, and any means may be used.

The examples shown in FIGS. 15 and 16 are as follows.
A number of plate bodies 33'a constitute a leveling plate 33 ', and the plurality of plate bodies 33'a incline with respect to the traveling direction P of the laying vehicle so that the plate bodies 33'a are adjacent to each other. A gap 55 is formed in the. With this configuration, the sand S dropped from the sand-spreading hopper 25 is guided by the plate body 33'a, and the gap 5
Since the sand 53 passes through the joint 53 while flowing diagonally backward through the sandstone 5, there is an advantage that the sand S easily enters the joint 53 of the pavement block V.

The above example is merely an embodiment of the present invention, and the present invention is not limited to the above embodiment, and various partial modifications can be considered. For example, the sweeping brush may be of a rotary type instead of the fixed structure described above. Further, in the above-mentioned embodiment, the vacuum suction tool is mentioned as an example of the gripping tool for gripping the pavement block, but the gripping tool may also be structured so as to be lifted by sandwiching the side surface of the pavement block.

[0020]

According to the present invention, a suspension arm is rotatably mounted on a front portion of a vehicle body of a self-propelled vehicle in a vertical plane, and a grasping tool for grasping a paving block is suspended at a tip portion of the suspension arm. A pavement block that is lowered and is held by the gripping tool and hung at the tip end of the suspension arm only by the operation of the self-propelled vehicle and the suspension arm by the driver boarding the self-propelled vehicle. In a pavement block laying vehicle that can be laid at a predetermined laying position, three members, a sand hopper, a leveling plate, and a sweeping brush, were attached to the frame in this order along the running direction of the laying vehicle. Since a sanding device is manufactured and attached to the rear part of the vehicle body of the self-propelled vehicle so that it can be raised and lowered, it can be laid not only by the laying vehicle but also by the laying work of the pavement block. Pavement blocks Also in the joints to work to pack the sand made without human intervention. As a result, the efficiency of filling sand in the joints between the laid pavement blocks is improved. In particular, when the sand spreader is installed so as to be inclined with respect to the vehicle body of the self-propelled vehicle, excess sand is gathered on one side of the sand spreader and remains as it is. Since a large amount of sand does not stay in the interior, there is an advantage that the load on the leveling plate and the sweeping brush does not become excessive.
Furthermore, if a leveling plate is made up of a large number of plates and the plate is tilted with respect to the traveling direction of the laying vehicle, the pavement will be carried out while being guided by the leveling plate and the sand flowing diagonally backward. Since the sand enters the joints between the blocks, there is an advantage that the sand easily enters the joints.

[Brief description of drawings]

FIG. 1 is a side view of a vehicle for laying a pavement block including a sanding device according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a partial front view of the same.

FIG. 4 is a sectional view of a vacuum suction tool B.

FIG. 5 is a schematic plan view of the same.

FIG. 6 is a perspective view of a sanding device C.

FIG. 7 is an enlarged side view of a portion of the sanding device C in the laying vehicle.

FIG. 8 is a plan view of the same.

FIG. 9 is an enlarged side view of a portion of a discharge port 25a of the sand hopper 25.

FIG. 10 is a partially enlarged plan view of the same.

FIG. 11 is a partially enlarged sectional view of the same.

FIG. 12 is a partially enlarged cross-sectional view of a different state.

FIG. 13 is a plan view showing a state in which a sanding device C is tilted and attached to the rear portion of the vehicle body 1 of the self-propelled vehicle A.

FIG. 14 is a plan view showing a working state of the same.

FIG. 15 is a schematic plan view of a sanding device C using a leveling plate 33 ′ composed of a large number of plate bodies 33′a.

FIG. 16 is a rear view of a portion of the same leveling plate 33 ′.

[Explanation of symbols]

 A: Self-propelled vehicle B: Vacuum suction tool (grasping tool) C: Sanding device M: Driver V: Pavement block 1: Vehicle body 9: Suspending arm 24: Frame 25: Sanding hopper 33, 33 ': Leveling plate 36: Sweeping brush 54: Bracket

Claims (4)

[Claims] 1. A suspension arm is rotatably mounted on a front portion of a vehicle body of a self-propelled vehicle in a vertical plane, and a grasping tool for grasping a paving block is suspended at a tip portion of the suspension arm, A predetermined laying position of the pavement block that is gripped by the gripping tool and hung at the tip of the suspension arm only by the operation of the self-propelled vehicle and the suspension arm by the driver who is riding in the self-propelled vehicle. In a paving block laying vehicle that can be laid on the sand piling block, a sand blasting device in which three members, a sand hopper, a leveling plate, and a sweeping brush, are attached to the frame in this order along the running direction of the laying vehicle. A pavement block laying vehicle equipped with a sand-spreading device, characterized in that the sand-spreading device is manufactured and attached to the rear part of the vehicle body of the self-propelled vehicle so that the sand-spreading device can be moved up and down. 2. The vehicle for laying a pavement block having a sanding device according to claim 1, wherein the sanding device is detachably attached to the vehicle body of the self-propelled vehicle. 3. The vehicle for laying a pavement block with a sanding device according to claim 1, wherein the sanding device is inclined with respect to a direction orthogonal to the traveling direction of the laying vehicle. . 4. The leveling plate is composed of a large number of plate bodies, each plate body is arranged in an inclined state with respect to the traveling direction of the laying vehicle, and sand is placed between the adjacent plate bodies in the backward direction. A pavement block laying vehicle equipped with the sanding device according to any one of claims 1 to 3, wherein a clearance is formed to allow it to escape.