JP2903974B2 - Belt-type lawn feeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for winding up a lawn grown in a mat shape and then rewinding the lawn to spread the lawn on the ground.

[0002]

2. Description of the Related Art In order to facilitate the work of collecting grass after growing it and transplanting it to another place, soil was put on a net-like rug, sowed grass seeds were sown, and the grass was grown in a mat shape. rear,
The present applicant has already applied for a technique of winding the rug and collecting the lawn and transplanting it to another place. In addition, a technique has been disclosed in which a base is made by laying fine bark flakes, and a lawn is grown on the base to form a mat.
3-75035).

[0003]

However, in order to handle the lawn that has been wound up, and in particular to efficiently perform the laying work, some contrivance is required. It is not enough to simply unwind the lawn that has been wound up by hand. It is troublesome and troublesome. It is also conceivable to provide gears at both ends of the take-up drum and rotate the take-up drum with a motor. Is required, and the device becomes correspondingly large.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a belt-type lawn feeder which can unwind with a small output driving device when unwinding and paving the wound lawn. The purpose is to do.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to achieve the above object, and has a trolley moved by a plurality of wheels, a winding drum for winding a mat-like lawn into a roll, on both ends of the drum shaft of the winding drum
A U-shaped bearing provided on the carriage in the vertical direction to support the carriage downward, a first long pulley provided on the carriage, and a parallel at substantially the same vertical position as the first long pulley. a second elongated pulley provided on the dolly, the b
On the mat-like lawn wound in a roll
An endless belt wound by the second long pulley and a drive device for rotating the first or second long pulley are provided.

[0006]

The endless belt wound around the two long pulleys is rotated by the driving device to rotate the rolled lawn. The rolled lawn is unwound by this rotation, sent out to the ground, and spread. Also, the force transmitted from the belt to the rolled lawn acts on the circumference of the rolled lawn, and generates a large rotating torque with a small force. Therefore, the driving device may have a small output.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The mat-like lawn 1 is wound on the winding drum 3 in advance with the lawn surface facing outward. The truck 5 of the device of the present embodiment has two pairs of wheels 7 and 9 made of solid tires and can move. A pair of wheels 7
Are steering wheels, the direction of which is changed by the steering handle 11, and steering can be performed. The steering handle 11 can be maintained in a straight running state, that is, in a center position, by clicking with a stop notch. The truck 13 has a handle 13 on the right side in the figure.
The handle 13 is moved by an operator pulling the handle.

The other pair of wheels 9 is fixed to the end of the axle 15. As shown in FIG.
The end of the axle 15 is fitted to the hub 9A by the key and the key groove 16, and the lock nut 18 prevents the shaft 9 from coming off in the axial direction. Around the axle 15, bearings 17
, A first long pulley 19 is rotatably provided.

The second long pulley 2 is attached to the carriage 5 in a state in which the first long pulley 19 is substantially at the same vertical position and parallel to the first pulley 19.
1 is provided. These two long pulleys 19, 21
, An endless belt 23 is wound. The belt 23 is of a non-slip type that is unlikely to cause slipping on the two long pulleys 19 and 21 and has sufficient strength. Having sufficient strength, a heavy roll-shaped lawn 1 can be placed on the belt 23.
Can be placed. An example of such a belt 23 is a rubber-based belt having a large number of protrusions for increasing friction on the surface.

The second long pulley 21 is urged by a spring 25 to the right of the carriage 5 in the figure, ie, away from the first long pulley 19. This spring 25
Constitutes a belt tension adjuster 27 capable of adjusting the urging force. This adjustment is performed by turning the screw 29. Further, the outer diameter of each of the long pulleys 19 and 21 is slightly increased toward the center in the longitudinal direction, and has an expanded shape. The expanded shape allows the endless belt 23 to rotate without causing a positional shift.

A U-shaped bearing 31 is provided at the center of the carriage 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, the drum shaft 33 moves from the upper side to the lower side as the roll-shaped lawn 1 is unwound and the diameter becomes smaller.
The mold 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
Is provided with a flange at the end thereof so that it does not drop off in the left-right direction when received by the U-shaped bearing 31.

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. Hereinafter, the operation of the present embodiment will be described. When the lawn 1 is spread, the driving device 39 rotates the second long pulley 21, the belt 23, and the first long pulley 19 clockwise in the drawing. At the same time, the worker pulls the handle 13 to move the carriage 5 rightward in the figure. Then, due to the rotation of the belt 23, the lawn 1 in the form of a roll rotates counterclockwise and is unwound, and is sent out to the left in the drawing.

If the belt 23 is stretched due to aging, the rolled lawn 1, which is a heavy material, cannot be supported sufficiently.
Turn the screw 29 to increase the dimension between the two long pulleys 19, 21. As a result, the belt 23 is in a taut state again, and can support the rolled lawn 1.

As described above, according to the present embodiment, the endless belt 23 is rotated by the driving device 39 to automatically rotate the lawn 1 in a roll form, so that the lawn 1 can be sent and spread. There is no need to manually lay out the lawn 1.

The lawn 1 in the form of a roll is flexibly supported by a wide area by the belt 23, so that the lawn 1 is hardly damaged. The force transmitted from the belt 23 to the rolled lawn 1 acts on the circumference of the rolled lawn 1 and generates a large rotating torque 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.
3 can be smaller than when rotating directly.

In the above embodiment, the right wheel 7 in the figure is a steering wheel. However, other devices may be simply fixed wheels. Even in this case, the spreading direction can be changed by moving the entire apparatus with the handle 13.

In the above embodiment, the driving device 39 drives the second long pulley 21 to rotate. In other embodiments, the driving device 39 drives the first long pulley 19 to rotate. It may be.

In the above embodiment, the lawn 1 is wound with the grass surface outside, but in other embodiments, the grass 1 may be wound with the grass surface inside. In this case, the grass 1 is sent out from near the first long pulley 19.

Further, in the above embodiment, the moving direction of the apparatus is the right direction in the figure and the sending direction of the lawn 1 is the left direction, which is the opposite direction. However, in other embodiments, the moving direction may be the same. In this case, the sent lawn is laid on the wheels 7 and laid on the ground.

In the above embodiment, the apparatus is moved manually, but in another embodiment, the apparatus may be moved by a driving device for movement.

In the above embodiment, the apparatus is moved by pulling the handle 13. However, in other embodiments, the apparatus may be moved by pushing the handle 13.

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 is rotatably provided and the first long pulley 19 may be 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 rolled lawn to generate a large rotational torque, and the output of the driving device can be small, and the device can be downsized. The lawn can be spread without relying on manual work. In addition, U-shaped bearings
Roll ends by supporting both ends of the shaft vertically
The lawn must always be properly placed on the endless belt
So that the rolled lawn is smooth regardless of its diameter.
Can be paid out.

[Brief description of the 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. 1;

FIG. 4 is a longitudinal sectional view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lawn 3 Take-up drum 5 Cart 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 41 Drive sprocket

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01G 1/12 A01C 11/02 A01C 11/04

Claims (1)

(57) [Claims] 1. A cart moved by a plurality of wheels, a winding drum for winding a mat-like lawn into a roll,
A U-shaped bearing provided on the carriage in the vertical direction to support both ends of the drum shaft of the winding drum in a vertically movable manner, a first long pulley provided on the carriage, A second long pulley provided on the carriage in parallel with the pulley at substantially the same vertical position, and wound on the roll;
Matted lawn is placed on the first and second long pulleys
A belt-type lawn feeder, comprising: an endless belt wound by the roller; and a drive device for rotating and driving the first or second long pulley.