JPH07135819A - Belt-type lawn sending apparatus - Google Patents

Abstract

PURPOSE:To provide an apparatus capable of automatically sending out a mat- like wound lawn with a driving apparatus of small output and spread the lawn all over the ground. CONSTITUTION:A carriage 5 of this apparatus travels by labor and at the same time the second long-sized pulley 21 is rotated by the power derived from a driving apparatus 39 via sprockets 41, 35 and a chain 37. By this motion, the first long-sized pulley 19 and an endless belt 23 rotate together. A roll-shaped lawn 1 placed on the belt is made to rotate by the motion of the belt and send itself to the ground to spread it all over the ground. Here, since the power transmitted from the belt 23 to the roll-shaped lawn 1 acts at its peripheral parts, large torque is generated with small power and accordingly a power source of small output is enough as the driving apparatus 39.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for winding a lawn grown in a mat shape and then unwinding the lawn and laying it on the ground.

[0002]

2. Description of the Related Art A lawn is grown in a mat shape by putting soil on a net-like rug and sowing seeds on the lawn so that the lawn can be collected and then transplanted to another place. rear,
The applicant has already applied for a technique of winding this rug, collecting the lawn, and transplanting it to another place. In addition, a technique is disclosed in which a base is made of thin bark flakes and a lawn is grown on the base to form a mat (Japanese Patent Laid-Open No. Sho 5).
3-75035).

[0003]

However, in order to efficiently handle the rolled lawn, particularly the spreading work, it is necessary to devise some means, and it is not enough to unwind the rolled lawn by hand. It is troublesome and troublesome. It is also conceivable to provide gears on both ends of the winding drum and rotate the winding drum with a motor, but in order to unwind grass that has been wound up and has a considerable weight, the motor has a large output. Is required, and the device becomes large accordingly.

The present invention has been made in order to solve the above problems, and provides a belt type lawn feeding device capable of unwinding a wound lawn with a driving device having a small output when the lawn is unwound and spread. The purpose is to do.

[0005]

The present invention has been made in order to achieve the above object, and is a trolley that is moved by a plurality of wheels, a winding drum that winds a mat-shaped lawn into a roll, A U-shaped bearing vertically provided on the carriage to support both ends of the drum shaft of the winding drum, a first long pulley provided on the carriage, and substantially the same as the first long pulley. The second long pulley provided on the carriage in parallel at the vertical position of the, the endless belt wound around the first and second long pulleys, and the first or second long pulley are driven to rotate. And a drive device that operates.

[0006]

The endless belt wound around the two long pulleys is rotated by the drive device to rotate the lawn in a roll shape. The roll-shaped lawn is unwound by this rotation, sent to the ground, and spread. Further, the force transmitted from the belt to the roll-shaped lawn acts on the circumferential portion of the roll-shaped lawn, and a large rotational torque is generated with a small force. Therefore, the driving device may have a small output.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The mat-shaped lawn 1 is wound around a winding drum 3 in advance with the lawn surface facing outside. The trolley | bogie 5 of the apparatus of a present Example has two pairs of wheels 7 and 9 which consist of solid tires, and can move. A pair of wheels 7
Is a steering wheel, the direction of which is changed by the steering wheel 11 and steering is possible. The steering wheel 11 can be maintained in a straight state, that is, in the center position by clicking with a stop notch. The trolley 5 has a handle 13 on the right side in the figure.
Is provided, and a worker pulls and moves the handle 13.

The other pair of wheels 9 are fixed to the ends of the axle 15. As shown in FIG.
The end portion of the axle 15 is fitted into the hub 9A of the above with the key and the key groove 16, and the lock nut 18 prevents the shaft from coming off in the axial direction. Bearings 17 around the axle 15
The first long pulley 19 is rotatably provided via the.

The second long pulley 2 is attached to the carriage 5 in a state in which the first long pulley 19 and the first long pulley 19 are substantially in the same vertical position and parallel to each other.
1 is provided. These two long pulleys 19, 21
An endless belt 23 is wound around. The belt 23 is of a non-slip type that is unlikely to slip on the two long pulleys 19 and 21, and has sufficient strength. By having sufficient strength, a large weight of roll-shaped lawn 1 is placed on the belt 23.
Can be placed. An example of such a belt 23 is a rubber type belt having a large number of convex portions for increasing friction on the surface.

The second long pulley 21 is biased by a spring 25 in the right direction in the figure with respect to the carriage 5, that is, in the direction away from the first long pulley 19. This spring 25
Configures a belt tension adjuster 27 that can adjust the urging force. This adjustment is done by turning the screw 29. In addition, the outer diameter of each of the long pulleys 19 and 21 is slightly larger toward the center in the longitudinal direction, and is in a swelled shape. Due to this bulging shape, the endless belt 23 can be rotated without displacement.

A U-shaped bearing 31 is provided at the center of the bogie 5 in the front-rear direction.
Is provided. The U-shaped bearing 31 is used for the winding drum 3
For supporting both ends of the drum shaft 33. That is, as the roll-shaped lawn 1 is unwound and the diameter becomes smaller, the drum shaft 33 moves from the upper side to the lower side.
The die bearing 31 supports both ends of the drum shaft 33 so as not to move in the front-rear direction while allowing this movement. Drum shaft 33
A flange is provided at the end of the U-shaped bearing so that the U-shaped bearing 31 does not drop in the left-right direction.

A sprocket 35 is provided at an end of the second long pulley 21, and a driving force is transmitted by a driving sprocket 41 of a driving device 39 via a chain 37. The operation of this embodiment will be described below. When the lawn 1 is spread, the drive device 39 causes the second long pulley 21, the belt 23, and the first long pulley 19 to rotate clockwise in the drawing. At the same time, the worker pulls the handle 13 to move the carriage 5 to the right in the figure. Then, by the rotation of the belt 23, the roll-shaped lawn 1 is rotated counterclockwise and unrolled, and is fed to the left side in the drawing.

When the belt 23 stretches due to aging, the roll-shaped lawn 1, which is a heavy object, cannot be sufficiently supported. Therefore, in order to absorb the stretch, the belt tension adjusting machine 27 is used.
Turn the screw 29 of the to expand the dimension between the two long pulleys 19, 21. As a result, the belt 23 becomes taut again and can support the roll-shaped lawn 1.

As described above, according to this embodiment, the driving device 39 rotates the endless belt 23 to automatically rotate the lawn 1 in a roll shape, and the lawn 1 can be fed and spread. There is no need to manually send out and spread the lawn 1.

Further, the roll-shaped lawn 1 is flexibly supported by the belt 23 over a large area, and therefore is not easily scratched. Further, the force transmitted from the belt 23 to the roll-shaped lawn 1 acts on the circumferential portion of the roll-shaped lawn 1, and a large rotational torque is generated with a small force. Therefore, the lawn 1 can be easily rotated with a small force. Therefore,
The output of the driving device 39 is the drum shaft 3 on which the lawn 1 is wound.
It is smaller than the case where 3 is rotated directly.

In the above embodiment, the wheel 7 on the right side of the drawing is a steering wheel, but it may be a fixed wheel in other devices. Even in that case, by moving the entire device with the handle 13, the direction of spreading can be changed.

In the above embodiments, the drive device 39 drives the second long pulley 21 to rotate, but in other embodiments the first drive pulley 19 rotates. May be

Further, in the above embodiments, the lawn 1 was wound up with the turf surface outside, but in other embodiments, it may be wound with the turf surface inside. In this case, the lawn 1 is fed out near the first long pulley 19.

Further, in the above-mentioned embodiments, the moving direction of the device is the right direction and the feeding direction of the lawn 1 is the left direction, which is the opposite direction, but it may be the same direction in other embodiments. In this case, the fed lawn is spread on the wheels 7 and spread on the ground.

Further, in the above embodiments, the device is manually moved, but in other embodiments, it may be moved by a moving driving device.

Further, in the above embodiments, the device was moved by pulling the handle 13, but in other embodiments it may be moved by pushing the handle 13.

Further, in the above embodiment, the axle 15
On the other hand, the wheel 9 is fixed and the first long pulley 19 is rotatably provided. However, in another embodiment, the wheel 9 may be rotatably provided and the first long pulley 19 is fixed. .

[0023]

As described above, according to the belt type lawn feeding device of the present invention, the endless belt is rotated by the driving device via the long pulley, and the roll-shaped lawn placed on the belt is rotated. Since the belt is fed and spread, the force from the belt acts on the circumferential portion of the roll-shaped lawn to generate a large rotational torque, and the output of the driving device can be small, so that the device can be downsized. In addition, you can spread the lawn without resorting to manual work.

[Brief description of drawings]

FIG. 1 is a side view of a belt type lawn feeding device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged view showing a main part of FIG.

FIG. 4 is a vertical sectional view of FIG.

[Explanation of symbols]

1 Lawn 3 Winding drum 5 Bogie 7, 9 Wheels 11 Steering handle 13 Handle 15 Axle 16 Key and keyway 17 Bearing 18 Lock nut 19 First long pulley 21 Second long pulley 23 Endless belt 25 Spring 27 Belt tension adjuster 29 Screw 31 U-shaped bearing 33 Drum shaft 35 Sprocket 37 Chain 39 Drive device 41 Drive sprocket

Claims (1)

[Claims] 1. A trolley that moves by a plurality of wheels, a winding drum that winds a mat-shaped lawn into a roll,
A U-shaped bearing vertically provided on the carriage to support both ends of the drum shaft of the winding drum, a first long pulley provided on the carriage, and substantially the same as the first long pulley. The second long pulley provided on the carriage in parallel at the vertical position of the, the endless belt wound around the first and second long pulleys, and the first or second long pulley are driven to rotate. A belt-type lawn feeding device comprising: