JPH0644363Y2 - Soil sprayer - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is towed by a towing drive vehicle such as a tractor.
The present invention relates to a soil spreading vehicle for spraying soil on a grass surface at a golf course or the like.

[Conventional technology]

FIG. 3 is a perspective view showing a conventional soil spreading vehicle of this type. In the figure, (1) is a vehicle body that is connected to a tractor (not shown) by a front connecting rod (1a), and is driven by rear wheels (2). (3) is a soil loading section formed by the side frame (3a) on the vehicle body (1), and (4) is a bed side wheel of the sand carrier, for example, a rear wheel (not shown) of the dump truck, and the side frame (3a). ) Is a tread for climbing to guide near the upper part, and has a two-piece integrated structure by a connecting rod (5). (6)
Is a bearing member mounted outward on the top of the side frame (3a),
The tread (4) is supported by the shaft (6a) held in this manner so as to be able to move up and down.

This type of soil spreading vehicle is connected to a tractor by a connecting rod (1a), and is towed by the tractor to run on a golf course. At that time, the soil in the soil loading section (3) is sprayed from the rear of the vehicle body (1). The soil in the soil loading section (3) is sequentially fed rearward by a sand feeding plate (8) driven by a conveyor chain (7).

Then, when the soil loading section (3) is emptied, the machine stands by at the golf course, and the soil is carried here by the dump truck. When loading the soil on the soil loading section (3) with the dump truck, the tread (4) is tilted as shown in the figure, the rear wheel of the dump truck is mounted on the tread (4), and the loading platform of the dump truck is swung to deposit the soil. In this way, when the dump truck rides on the tread (4), both hydraulic cylinders (9), (10)
To lower the vehicle body (1) to the ground as shown.

When the dump truck finishes loading the soil, the tread (4) is erected, the hydraulic cylinders (9), (10) raise the vehicle body (1), and the tractor again runs to spread the soil.

The structure of the machine except the tread (4) (in particular, the mechanism for moving the vehicle body 1 up and down by the hydraulic cylinders 9 and 10) is disclosed in, for example, Japanese Patent Publication No. 59-9130, and therefore its explanation is omitted. .

[Problems to be solved by the device]

Since the conventional soil spreading vehicle is configured as described above,
When loading the soil on the soil loading section (3) with a dump truck,
It takes time and effort to get off the tractor and tilt the tread (4) to raise it. Since the spraying work is 4,5 minutes, you have to repeat the tractor getting on and off at intervals of 4,5 minutes. Due to the weight of the tread (4), there was a problem that the work of spraying the soil was a heavy labor.

This invention was made in order to solve such a problem, and it is possible to raise and lower the treads on a towing drive vehicle, which facilitates the work of spraying the soil, and further, the operation of raising and lowering the treads is surely performed. Aim to get a spray car.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a soil spreading vehicle according to the present invention is provided with a cylinder device for raising and lowering a tread so that the cylinder device can be operated from a towing drive vehicle and the tread in a standing state is further tilted. A spring for urging the tread plate is provided, and the tread plate starts to fall due to the urging force of the spring when the cylinder device is made powerless to tilt the tread plate.

[Action]

In this invention, the tread plate can be tilted by operating the cylinder device from the towing drive vehicle, and when the cylinder device is made powerless to tilt the tread plate, the tread plate starts to fall due to the urging force of the spring, so the tread plate can be securely held. Fall down.

〔Example〕

An embodiment of this invention will be described with reference to FIGS. FIG. 1 is a sectional view of an essential part showing a state in which a tread is tilted,
The figure is a cross-sectional view of an essential part showing a state in which the tread plate is raised, and the same or corresponding parts as those of the conventional one are designated by the same reference numerals and the description thereof will be omitted.

In the figure, (11) is a hydraulic cylinder device that uses the hydraulic pressure of a tractor as a drive source, and the tip of a piston rod (11a) is pivotally attached to a link (12) end of a connecting rod (5) by a pin (13). As it is worn, hydraulic operation is possible on the tractor. Reference numeral (14) is a bearing member attached to the lower part of the side frame (3a) outwardly, and rotatably supports the middle portion of the hydraulic cylinder device (11) by a shaft (14a) held by the bearing member. (15) is a tension spring arranged on the lower surface side of the tread (4), one end (15a) is fixed to a spring receiver (16) below the bearing member (6) and the other end (15b) is the tread (4). It is adjustably attached by a nut (18) to a spring receiver (17) at the mid-abdomen. (19) is a spring pad provided at the end of the tread (4).

When the dump truck has finished loading the soil, the hydraulic pressure is sent from the tractor to the hydraulic cylinder device (11), and the piston rod (11a) expands to move the tread (4) to the axis ( 6a) is rotated in the direction of the arrow (20) with the fulcrum as a fulcrum, and finally, as shown in FIG. 2, the piston rod (11a) is extended to hold the tread (4) in an upright state. In the above operation, since the hydraulic pressure of the hydraulic cylinder device (11) is much stronger than the tensile force of the tension spring (15), the tread (4) is raised up smoothly, and the standing up of FIG. In this state, there is hydraulic pressure in the hydraulic cylinder device (11), so there is no risk of the tread (4) falling over.

After that, as with the conventional device, the vehicle body (1) is lifted up, and the vehicle is towed by a tractor to travel and spray the soil. When the soil is gone, the vehicle body (1) is lowered again to return to the state shown in FIG.

In the state shown in FIG. 2, when the hydraulic cylinder device (11) is depressurized by operating the hydraulic pressure from the tractor to render the hydraulic cylinder device (11) powerless, the urging force of the tension spring (15) works to operate the tread (4). ) In the direction of the arrow (21). That is, the tread (4) begins to fall. The tread (4)
Is set up vertically so that it does not get in the way during running work and in consideration of the stability of the standing state.
Without 5), it rarely starts to fall naturally.
The tread (4), which has begun to fall from the standing state of FIG. 2 by the tension spring (15), then falls due to its own weight and falls as shown in FIG.

The rest is the same as the conventional device, the rear wheel of the dump truck is tread (4)
And then put the soil into the soil loading section (3).

As described above, since the operation of tilting the tread (4) can be performed from the tractor, the operator does not have to step down the tractor to move the tread (4) up and down.

Although the hydraulic cylinder device (11) is used in the above embodiment, a battery cylinder device using a battery as a driving source may be used. Since such a hydraulic cylinder device (11) and a battery cylinder device can use those of a tractor as a drive source, a drive source for tilting the tread (4) is not required.

[Effect of device]

As described above, according to the present invention, since the tread plate can be tilted on the traction drive vehicle, the work of spraying the soil can be facilitated, and the tread plate can be tilted more reliably.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a cross-sectional view of a main part of a tread in a tilted state, FIG. FIG. 6 is a perspective view showing a conventional one. In the figure, (1) is the vehicle body, (3) is the soil loading section, and (3
a) is a side frame, (4) is a tread, (5) is a connecting rod, (11) is a hydraulic cylinder device, (11a) is a piston rod, and (15) is a spring. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A vehicle body towed by a towing drive vehicle, a soil loading section formed on the vehicle body by a side frame, and a bed side of a sand carrier which is attached to an upper portion of the side frame so as to be tiltable. In a soil spreading vehicle having a climbing tread for guiding the wheels to the vicinity of the upper part of the side frame, a cylinder device for raising and lowering the tread is provided, and the cylinder device can be operated from the towing drive vehicle. It is provided with a spring for urging the standing tread in a standing direction, and when the cylinder device is made powerless to tilt the tread, the tread starts to fall by the urging force of the spring. A scatter vehicle.