JP2848217B2 - 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 that gears are provided at both ends of the winding drum and the winding drum is rotated by a motor. However, the apparatus is complicated and large in size by the motor and the gears.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. When unwinding and laying out a lawn that has been wound up, it relies heavily on manual work without providing a separate drive source such as a motor. It is an object of the present invention to provide a belt-type lawn feeding device that does not need to be provided.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to achieve the above object, and comprises a truck moved by a plurality of wheels, and a winding drum for winding a mat-like lawn in a roll shape. A U-shaped bearing provided on the carriage in the vertical direction to support both ends of the drum shaft of the winding drum, a first belt pulley provided on the carriage and also serving as a wheel, and substantially the same as the first belt pulley. A second belt pulley provided on the carriage in parallel at the same vertical position,
An endless belt wound around these first and second belt pulleys, the lower surface of which is in contact with the ground and the upper surface of which is wound with the rolled lawn, and a slack prevention pulley that lifts the lower side of the wound belt, And a drive device for rotating the first or second belt pulley.

[0006]

In the present invention, when the bogie moves and the first belt pulley also serving as a wheel rotates, the endless belt wound around the first and second two belt pulleys rotates to form a roll. Rotate the lawn. By this rotation, the rolled lawn is unwound, sent out to the ground, and spread. At this time, the first belt pulley also serving as a wheel rotates in contact with the ground, and the first and second belt pulleys and the endless belt rotate at substantially the same peripheral speed. The lawn feed speed by the belt pulley is almost the same.
In addition, the slack prevention pulley raises the lower side of the wound belt, thereby preventing the belt from being slackened.

[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 apparatus of the present embodiment has a pair of wheels 7 made of solid tires and a first belt pulley 9 serving also as a wheel, and is movable. The cart 5 has a handle 10
Having. The pair of wheels 7 are steering wheels,
The direction is changed by the steering handle 11 via the arm 11A, 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 first belt pulley 9 has an axle 13
, Three wheel bodies 15 are fixed (FIG. 4). That is, the axle 13 passing through the hub 17 located at the center of the spoke or the box 16 of the wheel body 15 is fixed in the circumferential direction by the key and the key groove 19, and the metal washer 21.
And an adjustment bush 23 in the axial direction. 3
The center one of the wheel bodies 15 is 3 to 5% larger in diameter than both ends, so that a belt 25 described later does not move to both ends. The end of the axle 13 penetrates the frame of the bogie 5 and is fixed from the outside by a main bearing 27 having a ball bearing and a locking nut 29.

The second belt pulley 31 is attached to the carriage 5 in a state of being substantially parallel to the first belt pulley 9 at the same vertical position.
Is provided. The second belt pulley 31 has a beer barrel shape in which the diameter of the central part is larger than the diameter of both ends, so that a belt 25 described later does not move to both ends.

The surfaces of these two belt pulleys 9 and 31 are provided with a non-slip surface, and an endless belt 25 is wound thereover. Belt 25
The belt pulleys 9 and 31 are of a non-slip type that does not easily cause a slip, and have sufficient strength. With sufficient strength, the belt 25
A heavy rolled lawn 1 can be placed on the turf. As an example of such a belt 25, a mesh belt made of metal, nylon, rubber, or the like, having a large number of convex portions for increasing friction on the surface is exemplified.

The belt 25 wound around the two belt pulleys 9 and 31 is vertically reciprocated. A pull-up preventing pulley 32 is provided so as to lift the lower belt 25 upward from below. The slack preventing pulley 32 supports the entire width of the belt 25, similarly to the second pulley 31.

The second belt pulley 31 is urged by a spring 33 to the right of the carriage 5 in the figure, that is, in a direction away from the first belt pulley 9. This spring 33
Constitutes a belt tension adjuster 35 capable of adjusting the biasing force. This adjustment is performed by turning the screw 37.

A U-shaped bearing 39 is provided at the center of the truck 5 in the front-rear direction.
Is provided. The U-shaped bearing 39 is used for the winding drum 3
For supporting both ends of the drum shaft 41. That is, as the roll-shaped lawn 1 is unwound and its diameter becomes smaller, the drum shaft 41 moves from above to below.
The mold bearing 39 supports both ends of the drum shaft 41 so as not to move in the front-rear direction while allowing this movement. Drum shaft 41
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 39.

A sprocket 43 is provided at the end of the second belt pulley 31, and a driving force is transmitted by a driving sprocket 49 of a driving device 47 via a power transmission belt 45 formed with chains or teeth.

The upper surface of the first belt pulley 9 is covered by a fender 50 to prevent contact with the lawn 1 moving in the opposite direction.

The operation of this embodiment will be described below.
When the lawn 1 is spread, the driving device 47
The belt pulley 31, the belt 25 and the first belt pulley 9 are rotated clockwise in the figure, and the apparatus is moved rightward in the figure. Simultaneously with this movement, the roll-shaped lawn 1 placed on the belt 25 is rotated counterclockwise, and the mat-shaped lawn 1 is unwound.
Is sent under The lawn 1 sent out is the wheels 7
Is pressed against the ground 51 and spread. When changing the direction of paving, the operator must use the steering wheel 1
1 to change the moving direction of the cart 5 of the apparatus.

If the belt 25 is stretched due to aging, the rolled lawn 1, which is a heavy material, cannot be sufficiently supported, and the belt tension adjuster 35 is used to absorb the stretch.
Turn the screw 37 to increase the dimension between the two belt pulleys 9, 31. As a result, the belt 25 is in a taut state again, and the rolled lawn 1 can be supported.

As described above, according to the present embodiment, the endless belt 25 is simultaneously rotated by automatically moving the device by the driving device 47 and rotating the first belt pulley 9 also serving as a wheel. Rotate the lawn 1 in a roll,
Since the lawn 1 can be sent and spread, there is no need to separately provide a motor or the like for rotating the lawn 1 in a roll form. Therefore, the cost of the apparatus can be reduced.

The first belt pulley 9, the belt 25 and the second belt pulley 31, which also function as wheels, rotate at substantially the same peripheral speed, so that the moving speed of the carriage 5 and the feeding of the lawn 1 by the belt 25 are performed. The speed is almost the same. For this reason, an unreasonable tension does not act on the fed lawn 1, and conversely, loosening and wrinkling can be avoided.

Further, since the cart 5 moves and the belt 25 rotates to automatically unwind the lawn 1, there is no need to manually feed out the lawn 1.

Further, the lawn 1 in the form of a roll is flexibly supported by a wide area by the belt 25, so that it is not easily damaged. Further, the force transmitted from the belt 25 to the rolled lawn 1 acts on the circumferential portion 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.

Further, the slack preventing pulley 32 raises the lower side of the wound belt 25 so that the belt 25
To prevent loosening. The belt 2 is prevented from being loosened.
5 can be prevented (the belt pulleys 9, 31 move in the axial direction). In addition, the belt 25 can firmly support the rolled lawn 1. Further, extra contact between the belt 25 and the ground 51 can be prevented.

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 that case, the spreading direction can be changed by moving the entire device with the handle 10.

In the above embodiment, the belt 2
Although the belt tension adjuster 35 is used to absorb the elongation of the belt 5, in other devices, the slack preventing pulley 32 may be urged upward by a spring to absorb the elongation of the belt 25 due to aging. .

[0025]

As described above, according to the belt-type lawn feeder of the present invention, when the truck moves, the first belt pulley also serving as a wheel rotates to rotate the endless belt, and the roll-like shape. Since the lawn is rotated and spread out, there is no need to separately provide a motor for unwinding, and the lawn can be spread without relying on manual work.

Further, since the first belt pulley also serves as a wheel, the moving speed of the bogie by the wheel and the speed of sending out the lawn by the belt are substantially the same. Less loosening.

Further, the slack preventing pulley raises the lower side of the wound belt so that the slack of the belt can be prevented.

[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 Winding drum 5 Dolly 7 Wheel 9 First belt pulley 11 Steering handle 13 Axle 15 Wheel body 17 Hub 19 Key and keyway 21 Metal washer 23 Adjusting bush 25 Endless belt 27 Main bearing 29 Lock nut 31 No. 2 belt pulley 32 slack prevention pulley 33 spring 35 belt tension adjuster 37 screw 39 U-shaped bearing 41 drum shaft 43 sprocket 45 power transmission belt or chain 47 driving device 49 driving sprocket

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01G 1/00 301 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 a vertical direction to support both ends of the drum shaft of the winding drum, a first belt pulley provided on the carriage and also serving as a wheel, and substantially the same as the first belt pulley A second belt pulley provided on the cart in parallel at the upper and lower positions, and an endless wound around the first and second belt pulleys, the lower surface of which is in contact with the ground, and the upper surface on which the rolled lawn is placed and rotated. A belt lawn feeder comprising: a belt; a slack preventing pulley that lifts a lower side of the wound belt; and a driving device that rotationally drives the first or second belt pulley.