JPH0874209A - Paving stone laying device - Google Patents

Abstract

PURPOSE: To easily and certainly carry out laying work. CONSTITUTION: This device is furnished with a vehicle B to support an upper part machine frame 20, to move the upper part machine frame 20 to a desired position and to move it vertically, a lower part machine frame 40 supported on the upper part machine frame 20 free to revolve on a horizontal surface, a movable jaw 62 arranged free to revolve on both side parts and a rear end part of the lower part machine frame 40, an actuator 75 respectively revolve the movable jaw 62 and a fixed jaw 63 fixed and set on a front end part of the lower part machine frame 40. A paving stone C is caught by the movable jaw 62 and the fixed jaw 63, it is moved to a laying position by the vehicle B, and it is positioned and regulated at this position by revolving the lower part machine frame 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paving stone laying device,
In particular, the present invention relates to a paving stone laying device that allows easy and reliable paving stone laying work.

[0002]

2. Description of the Related Art As a conventional paving stone laying apparatus, for example, there is one disclosed in Japanese Patent Publication No. 3-47361.

In this pavement laying apparatus, a grab is suspended on a jib of a swing crane. This grab has clamp strips on four sides, and holds the pavement by these clamp strips, transports it to a predetermined laying place by a vehicle, and releases the pavement there. .

[0004]

By the way, in this pavement laying apparatus, even if the pavement is conveyed to the laying place, it is not provided with a fine adjustment mechanism for accurately positioning the pavement at the laying position. It had to be carried out by moving the vehicle, and the laying work of the pavement became complicated.

Further, since the clamp strip has a structure in which only one of the left and right sides and one of the front and rear sides are movably installed and only those are operated by the cylinder, for example, an obstacle such as a fence is laterally provided. When working at a certain place, if the movable clamp strip is located on the side of the fence, the strip may not operate, and as a result, the paving stone may not be laid.

The present invention has been made in view of the problems of the above-described conventional pavement laying apparatus, and its purpose is to:
It is an object of the present invention to provide a paving stone laying device that enables easy and reliable paving stone laying work.

[0007]

In order to achieve the above-mentioned object, the present invention provides a vehicle for supporting an upper machine casing, moving the upper machine casing to a desired position, and vertically moving the same, and the above upper machine casing. A lower machine frame rotatably supported on a frame in a horizontal plane, movable jaws rotatably arranged on both side and rear end portions of the lower machine frame, and actuators for rotating the movable jaws, respectively. A fixed jaw fixedly installed at the front end of the lower machine casing is used to grab the pavement with the movable jaw and the fixed jaw, move it to the laying position in the vehicle, and rotate the lower machine casing at the position. The paving stone laying device was adjusted in position.

[0008]

In the pavement laying apparatus of the present invention described above, the pavement is conveyed to the laying place by the vehicle, and if necessary, the grab is rotated in the horizontal plane and the vehicle is slightly moved to the laying position. The fine adjustment is made so that the pavement can be easily laid at an accurate laying position.

Further, in the case where work is to be carried out where there is an obstacle such as a fence on one side, the movable jaw on the obstacle side is not operated, and only the movable jaw on the other side is operated and gripped. By performing the work of releasing the pavement, there is an effect that the pavement can be surely laid without being obstructed by an obstacle such as a fence.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the paving stone laying apparatus according to the present invention described above will be described in detail below with reference to the accompanying drawings. First, FIG. 1 shows the entire paving stone laying apparatus according to the present invention.

This apparatus has a vehicle B for moving the glove A to an arbitrary place. This vehicle B is provided with a move 1, and the move 1 is rotated around a shaft 3 by a hydraulic cylinder 2 in a vertical direction. An arm 4 is rotatably supported on the tip of the move 1 about a shaft 5. And this arm 4 is
And the move 1 are rotated by a hydraulic cylinder (not shown).

The glove A is fixed to the arm 4 by a bracket 10. The bracket 10 has a support plate 11. The support plate 11 includes a guide rod 12 extending in the width direction of the vehicle as shown in an enlarged view in FIG. A bracket 21 of the upper machine casing 20 is slidably held on the guide rod 12.

A support plate 41 of a lower machine casing 40 is rotatably supported by the upper machine casing 20 via a rotating mechanism 30. The rotating mechanism 30, as shown in FIG.
Shaft 31 fixedly installed at the center of the lower surface of 0, holder 32 fixedly installed on the support plate 41 of the lower machine frame 40, bush 33 interposed between them, and thrust bearing 34.
It is mainly composed of and.

The lower machine casing 40 is composed of a support plate 41 and a grab body 50. Then, the glove body 50 is replaced by the glove body 50 as shown in FIGS. 3 and 4.
The four rods 51 standing upright are fitted into the holes 42 of the support plate 41, and the eye bolts 43 are planted on the lower surface of the support plate 41. The eye bolts 43 and the eye bolts 52 planted on the upper surface of the glove body 50 are mounted. Wire and chain rigging 44
Are hung on the support plate 41.

With the above construction, even if the arm 4 of the vehicle B is further lowered after the grab body 50 is grounded, the rigging 44 is loosened and the force of the arm 4 is directly grabbed. Since it is not transmitted to the main body 50,
There is no risk of damaging the grab body 50. In addition, the support plate 41
When the support plate 41 of the lower machine frame 40 is swung due to the presence of the rod 51 which is erected on the glove body 50 fitted in the hole 42 of the glove body 50, the glove body 50 is inserted through the rod 51.
Is also rotated in synchronization with the support plate 41.

The glove body 50 has a rectangular frame 53 as shown in FIG. And this underframe 53
Arms 56 and 57 are rotatably supported by pins 54 and 55 on both side edges of the arm, as shown in FIG.
Then, jaws 58, 59 are fixed to one ends of these arms 56, 57. Further, as shown in FIG. 3, the arm 61 is also attached to the rear edge of the underframe 53 by the pin 60 as shown in FIG.
Is rotatably supported. And this arm 61
A jaw 62 is fixed to one end of the. Further, a jaw 63 is fixed to the front edge of the underframe 53. On the inner surface of each of the above-mentioned jaws 58, 59, 62 and 63,
Pads 58a, 59a, 62a, 63a made of rubber, leather or the like are attached.

Further, on the lower surface of the underframe 53, a receiving plate 64 for receiving the pavement C at the upper portion is provided via a cushion material 65.

Further, in this paving stone laying apparatus, a hydraulic cylinder 71 is arranged on the lower surface of the support plate 11 of the bracket 10, and the tip of the piston rod 71a of the cylinder 71 is
It is locked to the upper surface of the upper machine casing 20 by a pin 20a. Then, when the hydraulic cylinder 71 is operated, the bracket 21 of the upper machine casing 20 is guided by the guide rod 12 and moved in the width direction of the vehicle B.

Further, a hydraulic cylinder 72 is rotatably supported on the lower surface of the upper machine casing 20, and the tip of the piston rod 72a of the cylinder 72 is supported by the support plate 4 of the lower machine casing 40.
1 is locked by a pin 41a. Then, when the hydraulic cylinder 72 is operated, the lower machine casing 40 is swung around the shaft 31 of the rotating mechanism 30.

Further, hydraulic cylinders 73, 74, 75 are installed on the underframe 53 of the glove body 50 so as to face the above-mentioned jaws 58, 59, 62, and piston rods 73a, 74a, 75a thereof are installed. The tip of the jaw 58,
Arms 58b, 59b extending from the upper ends of 59, 62,
It is locked to 62b by pins 58c, 59c and 62c. When the hydraulic cylinders 73, 74, 75 are operated, the respective jaws 58, 59, 62 are moved to the pin 5
It is rotated in the direction of the underframe 53 around 4, 55 and 60.

The above hydraulic cylinders 71, 72, 73, 7
4, 75 are switching valves 76, 77, 7 as shown in FIG.
The control levers 76a, 77a, 78a, 79a, 80a of the switching valves 76, 77, 78, 79, 80 connected to the hydraulic pump 81 via
It is located in the driver's cab.

The paving stone laying apparatus according to the present invention constructed as described above is operated as follows.

First, the vehicle B is driven to move the glove A to a position above the prepared pavement C. At this time, if necessary, the cylinder 71 is operated to move the glove A in the width direction of the vehicle B by an appropriate amount, and the cylinder 72 is operated to rotate the glove A by an appropriate amount. Then, the arm 4 of the vehicle B is lowered to lower the grab A. Then, the cylinders 73, 74, 75 are activated, and their jaws 5
The pavement C is held by the 8, 59, 62 and the fixed jaw 63.

After the pavement C is sandwiched by the glove A, the arm 4 of the vehicle B is raised to lift the pavement C,
In this state, the vehicle B is run and the pavement C is moved to the laying place. Then, the arm 4 of the vehicle B is lowered there. At that time, if necessary, the cylinder 71 is operated to move the glove A by an appropriate amount in the width direction of the vehicle B, and the cylinder 72 is operated to turn the glove A by an appropriate amount to adjust the position of the pavement C. To do. Then, when the pavement C is stored at a predetermined position, the operating state of the cylinders 73, 74, 75 is released, the arm 4 of the vehicle B is raised, and the pavement C is released from the jaws 58, 59, 62, 63.

In this paving stone laying apparatus, for example, when the paving stone C is to be laid on a side wall, the cylinder 73 or 74 on the fence side is stopped, that is, the jaw 58 on the fence side.
Or, without rotating 59, the cylinder 74 on the opposite side
Alternatively, 73 may be activated to release the pavement C. By doing this, when releasing the pavement C, the jaws 58 or 5 on the fence side are released.
Since 9 does not rotate, it is possible to work without being obstructed by the fence.

In the above embodiment, the hydraulic cylinder is shown as the actuator, but a pneumatic cylinder may be used.
Alternatively, a motor may be adopted.

[0027]

As described above, in the paving stone laying apparatus of the present invention described above, the paving stone is transported to the laying place by the vehicle, and the laying position of the paving stone can be finely adjusted as necessary, so that the laying position can be set accurately. There is an effect that it becomes a device that allows paving stones to be laid easily. Further, in the work where there is an obstacle such as a fence on one side, the movable jaw on the obstacle side is not operated, and only the movable jaw on the other side is operated by the actuator to release the grasped pavement. As a result, there is an effect that it becomes a device that can reliably lay a pavement without being obstructed by obstacles such as a fence.

[Brief description of drawings]

FIG. 1 is a conceptual side view showing an entire paving stone laying apparatus according to the present invention.

FIG. 2 is an enlarged sectional view showing an upper machine frame portion of the paving stone laying apparatus according to the present invention.

FIG. 3 is a sectional side view showing a grab of the paving stone laying apparatus according to the present invention.

FIG. 4 is a sectional rear view showing a grab of the paving stone laying apparatus according to the present invention.

FIG. 5 is a plan view showing a glove body of the paving stone laying apparatus according to the present invention.

FIG. 6 is a plan view showing an upper machine frame of the paving stone laying apparatus according to the present invention.

FIG. 7 is a diagram showing an example of a hydraulic circuit of the paving stone laying apparatus according to the present invention.

[Explanation of symbols]

 A grab B vehicle 1 move 4 arm 10 bracket 11 support plate 12 guide rod 20 upper machine frame 21 bracket 30 rotating mechanism 40 lower machine frame 41 support plate 42 hole 43 eyebolt 44 rigging 50 grab body 51 rod 52 eyebolt 53 underframe 54 , 55 pin 56,57 arm 58,59 jaw 60 pin 61 arm 62,63 jaw 71,72,73,74,75 hydraulic cylinder 76,77,78,79,80 switching valve 81 pump

Claims (5)

[Claims] 1. A vehicle that supports an upper machine frame, moves the upper machine frame to a desired position, and vertically moves the lower machine frame, and a lower machine frame that rotatably supports the upper machine frame in a horizontal plane. The lower machine casing includes movable jaws rotatably disposed on both sides and a rear end portion of the lower machine casing, actuators for rotating the movable jaws, and fixed jaws fixedly installed at a front end portion of the lower machine casing. A pavement laying apparatus, wherein a pavement is gripped by the movable jaw and the fixed jaw, the pavement is moved to the laying position by the vehicle, and the lower machine frame is rotated at the position to adjust the position. 2. The pavement according to claim 1, wherein the vehicle has a boom, an arm is provided at a tip of the boom, and the upper machine casing is provided at a tip of the arm. Laying equipment. 3. The paving stone laying apparatus according to claim 1, wherein one of the upper machine casing and the lower machine casing is provided with an actuator for rotating the lower machine casing. 4. The paving stone laying apparatus according to claim 1, wherein the arm is provided with a bracket, and the upper machine casing is arranged so as to be movable in the width direction of the vehicle with respect to the bracket. 5. The paving stone laying apparatus according to claim 4, wherein one of the bracket and the upper machine casing is provided with an actuator for moving the upper machine casing.