JPH0223616Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a heating device for a paving vehicle such as a road heater or other paving machine equipped with a burner for heating a road surface during asphalt pavement replacement work or the like.

Generally, a road heater is known as a machine used when performing asphalt pavement replacement work. This road heater uses a heating device to heat the asphalt pavement surface and soften the paving disc, making it easier for pavement repair machines to perform work such as excavating and stirring the paving disc. In order to increase the amount of heat, there is a tendency to install multiple heating devices with a high amount of heat in one running vehicle.

In addition, when installing multiple heating devices to increase the amount of heat of the entire road heater as described above, two heating devices are usually installed at the front and rear of the vehicle, but in this case, the installation of the heating devices Therefore, if the overall length of the running vehicle becomes longer, this will cause inconvenience.
If it is desired to obtain an even higher amount of heat, it is necessary to install the heating device in the center of the vehicle, that is, between the front wheels and the rear wheels.

On the other hand, in recent years, work vehicles have become larger and more multi-functional in order to repair asphalt pavement faster and more economically. It is desirable to be able to respond correctly and quickly to the width of the road, etc. For this reason, in the past, a part of the heating device installed in the center of the vehicle was configured to be able to rotate vertically, so that one part of the heating device could be stored upright relative to the other part of the pavement. Work vehicles can now be seen. However, the storage of a part of the heating device is
Conventionally, it has been very time-consuming and labor-intensive to do it manually with the help of several workers, which has caused problems in terms of workability and operability.

The present invention was developed in view of the above circumstances, and includes a part of the heater installed in the center of the vehicle that can be rotated vertically to accommodate various paving conditions. An object of the present invention is to provide a heating device for an asphalt paving work vehicle in which a part of the heater can be automatically raised and stored by using the above.

In order to achieve such an objective, the present invention supports a central heater in a moving vehicle so as to be movable up and down using an elevating device, and moves the main body of the central heater up and down with respect to an extension heater. The extension heater section is connected to the main body section via a connecting rod rotatably supported by the main body section, and the extension heater section is connected to the main body section and the upright position above the main body section. between the extension heater part and a predetermined part located above the extension heater part in the traveling vehicle, when the main body part is positioned downward, the extension heater An interlocking member that locks the part in the upright position is removably provided.

The present invention will be described below based on embodiments shown in the drawings.

1 to 5 show an embodiment of the present invention, and reference numeral 1 indicates a running vehicle, and this running vehicle 1 has a vehicle body supported by rear wheels 2 and front wheels 3, and a drive wheel (not shown). The device rotates the rear wheels 2 to drive the vehicle.

A front heater 4 and a rear heater 5 for heating the road surface are provided on the front and rear sides of the vehicle 1, respectively, and a center heater 6 is provided below the center in the longitudinal direction of the vehicle 1. It is provided.

The central heater 6 has a rectangular planar shape,
The long side portion is slightly longer than the width of the traveling vehicle 1, and the long side portion is provided along the width direction of the traveling vehicle 1. At the center of both sides of the traveling vehicle 1, hydraulic cylinders (elevating devices) 7, 7 are arranged with piston rods 7 spaced apart from each other in the front and back.
The lower ends of the piston rods 7a of the four hydraulic cylinders 7 are connected by pin connections to the mounting bracket 9 fixed to the upper surface of the central heater 6. The section heater 6 is supported by the four hydraulic cylinders 7, and by moving each piston rod 7a up and down,
The central heater 6 can be raised and lowered.
The hydraulic cylinder 7 is attached to the support bracket 8 so as to be rotatable in a vertical plane along the width direction of the vehicle body of the traveling vehicle 1, and the lower end of the piston rod 7a is also mounted on the same plane as the rotation plane of the hydraulic cylinder 7. It is attached to the mounting bracket 9 so that it can be rotated vertically within the frame. Furthermore, a guide tube 10 is attached to the side of each of the hydraulic cylinders 7 and to the side of the traveling vehicle 1 with its opening facing upward and downward, and a central heater 6 is attached to the side of each of the mounting brackets 9. There is a guide rod 1 on the top of the
1 is connected to a connecting bracket 12 whose lower end is fixed to the central heater 6 via a pin so that it can rotate in the same direction as the rotating direction at the connection between the piston rod 7a and the mounting bracket 9. Each guide rod 11 is inserted into the respective upper guide tube 10 so as to be slidable in the axial direction. Furthermore, a locking protrusion 10a is fixed to a predetermined portion on the side surface of the guide tube 10 above an extension heater portion to be described later.

On the other hand, the central heater 6 is provided with both longitudinal end portions extending outward in the width direction of the traveling vehicle 1 by a predetermined length. A part (extension heater part) 6A is separate from the other part (heater main body part) 6B. A connecting rod 14 is supported by a supporting member 13 on the upper surface of the heater main body 6B so as to be rotatable up and down in a vertical plane along the width direction of the vehicle body. The extension heater section 6A is fixedly attached, and by tilting down the connecting rod 14, the extension heater section 6A moves the heater main body section 6B to a connecting position that extends the heater main body section 6B in the lateral direction of the traveling vehicle 1. By connecting to and standing up the connecting member 14, it is separated from the heater main body 6B and placed in an upright position above the heater main body 6B. Note that the front part of the extension heater part 6A (running vehicle 1
A locking member 6C such as a hook fitting is attached by welding or the like to the upper surface of the front side (in the direction of movement) and the rear part, respectively.

The lower end of the interlocking member 15, such as a chain, whose upper end is attached to the locking protrusion 10a of the guide tube 10 is connected to the locking member 6c of the extension heater section 6A.
It is removably connected to. This interlocking member 15
When the connecting rod 14 is folded down to integrate the extension heater section 6A with the heater main body section 6B, and when the central heater 6 is pulled up to the highest position by the hydraulic cylinder 7, the extension heater section 6B is locked. The length is such that it extends linearly between the portion 6C and the locking protrusion 10a of the guide tube 10. As a result, when the central heater 6 is positioned downward, the extension heater section 6A is pulled by the interlocking member 15 and locked in the upright position.

Next, the operation of the present invention configured as described above will be explained.

To heat a wide road surface with a running vehicle, first, the connecting rod 4 is folded down to integrate the extension heater section 6A into the heater main body section 6B, and the lower end of the interlocking member 15 is attached to the locking member 6c.
After being removed from the vehicle, the piston rod 7a of the hydraulic cylinder 7 is lowered to connect the central heater 6 to the road surface, and the heaters 4, 5, and 6 heat the road surface.

In addition, when storing the extension heater section 6A for the purpose of driving on general roads, etc., first, the central heater section 6 is pulled up to the highest position using the hydraulic cylinder 7, and then, as shown in FIG. The lower end of the interlocking member 15 is locked to the locking member 6c,
Extension heater part 6 by interlocking member 15
After A and the guide cylinder 10 are connected, the central heater 6 is lowered by the hydraulic cylinder 7. By this lowering, the interlocking member 15 lifts the extension heater section 6A relative to the heater main body section 6B as shown in FIG. The connecting rod 1 rotates as the extension heater section 6A rises.
4 is in the upright position as shown by the two-dot chain line, the extension heater section 6A is rotated downward by a locking device (not shown) provided on the side of the traveling vehicle 1 or on the heater main body section 6B. After locking the connecting rod 14 in a vertical position to prevent the heating from occurring, the hydraulic cylinder 7 is contracted again, and the heater main body 6B is
is raised and stored, and the traveling vehicle 1 is driven. By the way, when storing the extension heater section 6A, the operator only has to do the work of locking the end of the interlocking member 15 attached to the guide tube 10 to the locking member 6c. It is no longer necessary to manually lift the extension heater section 6A, and the work of storing the extension heater section 6A can be done easily.
In addition, as a result, the center heater 6 of the traveling vehicle 1
becomes easier to handle.

In addition, when heating a narrow road surface, it is preferable to heat the road surface with the heater main body part 6B while the extension heater part 6A is stored above the heater main body part 6B as described above.

On the other hand, the stored extension heater section 6
When using A for road surface heating, first,
With the free end of the interlocking member 15 connected to the locking member 6c of the extension heater section 6A, the heater main body section 6B is lowered to a desired lower position by the lifting device 7. Next, the locking device (not shown) is removed to release the connection rod 14, and the lifting device 7
As a result, the heater body 6B is gradually raised toward the upper end position. At this time, the extension heater section 6A is attached to the interlocking member 15 on the side of the traveling vehicle 1.
It falls down due to its own weight while being supported by the heater body 6B, and is integrally connected to the outside of the heater body 6B at the rising end position of the heater body 6B, as shown in FIG. After doing this, the end of the interlocking member 15 is connected to the locking member 6 of the extension heater section 6A.
c, and the heater body 6B is lowered by the lifting device 7 to a desired position above the road surface.

Here, the extension heater section 6A gradually descends while being supported by the interlocking member 15, and almost no impact occurs when it is integrated with the heater main body section 6B, so the extension heater section 6A can be safely descended. can.

As explained above, the present invention supports a central heater in a vertically movable manner by a lifting device on a running vehicle, and allows the main body of the central heater to freely rotate vertically relative to an extension heater. The extension heater section is rotatably connected to the main body section between a connection position to the main body section and an upright position above the main body section via a connecting rod rotatably supported by the main body section. Installed so that it can move freely,
An interlocking member is provided between the extension heater section and a predetermined portion located above the extension heater section in the traveling vehicle, and locks the extension heater section in the upright position when the main body section is positioned downward. Because the extension heater is detachable, the extension heater can be raised and lowered by vertically moving the lifting device for raising and lowering the central heater, and it can be stored separately from the main body of the central heater, without requiring manual effort. , and can be integrally connected to the main body of the central heater. Further, since there is no need to add a special actuating device for the above-mentioned storage and connection, the structure is simple and the operability is good. Further, by heating the road surface with the main body of the central heater while the extension heater section of the central heater is stored, it is possible to easily heat a narrow road surface. Furthermore, when using the extension heater part of the stored central heater, as the central heater is raised by the lifting device, the extension heater part is supported by the interlocking member and gradually extended. Therefore, the extension heater section can be safely integrated into the main body of the central heater.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a side view of a running vehicle, Figure 2 is a plan view of the running vehicle shown in Figure 1, and Figure 3 is a main part. FIG. 4 is a configuration diagram showing a state in which the extension heater section is integrated with the heater main body, and FIG. 5 is a configuration diagram showing a state in which the extension heater section is erected. 1... Traveling vehicle, 6... Central heater, 7...
Hydraulic cylinder (elevating device), 7a... Piston rod, 10... Guide cylinder, 10a... Locking protrusion, 1
5... Interlocking member, 6A... Part (extension heater part), 6B... Other part (heater main body part).

Claims (1)

[Scope of utility model registration request] In an asphalt paving work vehicle in which a running vehicle is equipped with a central heater that heats the road surface, the central heater is supported to be movable up and down by an elevating device attached to the running vehicle, and the main body of the central heater is A section is provided to be rotatable in the vertical direction with respect to the extension heater section, and the extension heater section is provided with a main body section that includes:
It is attached so that it can rotate between a connection position to the main body and an upright position above the main body via a connecting rod rotatably supported by the main body, and the extension heater unit and the above-mentioned traveling An interlocking member is removably provided between a predetermined portion located above the extension heater section of the vehicle and locks the extension heater section in the upright position when the main body section is positioned downward. A heating device for an asphalt pavement work vehicle, characterized by: