JP2861745B2 - Lawn sheet packing and winding 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 a lawn grown in a mat shape, and for unwinding the wound lawn and laying it on the ground.

[0002]

2. Description of the Related Art After growing a lawn, soil is put on a net-like rug, sowed with lawn seeds, and the lawn is grown in a mat shape so that it is easy to collect and transplant the grass to another place. rear,
The present applicant has already considered a technique of collecting the lawn by winding the rug and transplanting the lawn to another place. Also, a technique has been disclosed in which a base is made of fine bark flakes and a lawn is grown on the base to form a mat.
5035). The present applicant has already applied for a device for winding or unwinding such a mat-like lawn (Japanese Patent Application No. 5-18306).
1).

[0003]

However, when the mat-shaped lawn is wound up and collected from the breeding ground, the roots of the lawn are entangled with the soil of the breeding ground, and it is difficult to wind the lawn properly.
Furthermore, for example, when a lawn is laid on an artificial turf and a soccer game or the like is performed, when the lawn is to be rolled up and collected again, the root of the lawn is entangled with the leaf of the artificial turf, making it difficult to wind up. Become. If the mechanical force by the device is applied to the lawn too strongly, the lawn is damaged, and if the mechanical force is weak, the winding operation does not proceed.

[0004] The present invention has been made to solve the above problems, and an object of the present invention is to provide a lawn bedding winding device capable of performing a winding operation quickly without damaging the lawn. .

[0005]

To achieve the above object, the present invention provides a winding shaft mechanism for winding or unwinding a mat-like lawn, a frame provided with the winding shaft mechanism, A space formed in the lower portion of the underframe to insert a forklift claw; a pair of arms provided on the underframe to move up and down; a claw provided at the end of the arm to peel off the lawn; And a pressure roller for holding the lawn in order to hold the position.

Further, a guide roller for guiding the peeled lawn to the winding shaft mechanism may be provided on the underframe.

[0007]

The forklift lifts the underframe by inserting the claw of the forklift into the space below the underframe, and winds up the mat-like lawn by the winding shaft mechanism. At this time, the nail at the tip of the arm peels off the lawn root. And since the pinching roller holds the position of the lawn with respect to the claw, the claw contacts only the root of the lawn and does not damage the lawn. Further, since the guide roller guides the peeled lawn to the take-up shaft mechanism, no excessive force is applied to the lawn even if the diameter of the lawn rolled up changes.

[0008] When laying the lawn, the forklift retreats, and the take-up shaft mechanism rotates in reverse to unwind the lawn. The unwound lawn is brought close to the ground by the pinching roller, so that accurate laying is performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the lawn sheet packing and winding device 1 winds or unwinds a lawn 19 while being lifted and moved by a forklift 3. The claw (fork) 5 of the forklift 3 moves up and down along the guide 7, and the angle of the up-down direction can be changed by tilting the guide 7 by the hydraulic cylinder 9.

[0010] A space 13 is formed in the underframe 11 of the lawn bedding and winding device 1 in which the claw 5 of the forklift 3 is inserted. That is, the pedestal 15 below the underframe 11 has
A space 13 into which the claw 5 is inserted from the rear is formed in the front-rear direction. On this pedestal 15, a pair of arc-shaped frames 17 is provided. In this frame 17,
A winding shaft mechanism 21 for winding or unwinding the mat-like lawn 19 is provided.

That is, as shown in FIGS. 2 and 3, a concave portion 25 for receiving both ends of the take-up shaft 23 is formed at the arc-shaped top of the frame 17. A plurality of rollers 27 are arranged in the recess 25 in a semicircular shape. These rollers 27 come into contact with a guide tire 29 provided at the end of the winding shaft 23 and rotate the winding shaft 23 with small friction. A rotating gear 31 is provided coaxially and detachably on the shaft end side further than the guide tire 29. That is, as shown in FIGS. 3 and 5, a key groove 32 is formed in the hollow shaft portion of the winding shaft 23 and the shaft hole of the rotating gear 31, and a keyed spindle 32a is fitted into these in the axial direction. By being removably fitted,
The rotary gear 31 and the guide tire 29 are configured to be fixed to the winding shaft 23, and a keyed spindle 32a
Can be easily disassembled, and the rotating mechanism can be appropriately maintained as needed.

A first gear 33 meshes with the rotating gear 31. The first gear 33 is opposed to the second gear 35.
The third gear 37 meshes with the third gear 37. A large fourth gear 39 meshes with the third gear 37 coaxially. The drive gear 43 of the drive housing 41 meshes with the fourth gear 39. Inside the drive housing 41, an electric motor is connected to the drive gear 43 via a speed reducer (not shown). The electric motor has a current value controlled by a control device (not shown), and the wound lawn 1
When the diameter of the roll of No. 9 is large, reduce the rotation speed,
When the diameter is small, control for increasing the rotation speed is performed.

An arm 45 is provided in front of the frame 17 of the underframe 11. The arm 45 is provided in a pair on the left and right sides of the underframe 11, rotates around the rotation shaft 47, and the tip moves vertically. This rotation is performed by a hydraulic cylinder 49. At the tip of the arm 45, a claw 5 for peeling off the lawn 19
1 is provided. Further, in order to hold the position of the lawn 19 with respect to the claw 51, a pair of pressing rollers 53 that sandwich the lawn 19 are provided.

The details will be described below with reference to FIGS. 2 and 4. That is, the rear ends of the pair of arms 45 are connected by one rod 55. A hydraulic cylinder is provided at the center of the rod 55 to rotate the pair of arms 45 simultaneously. At the end of the arm 45, a clamping roller mounting bracket 5 is provided.
7 is rotatably attached by a pin 59. The mounting bracket 57 is elastically supported by a spring 61. The mounting bracket 57 includes a pair of pressing rollers 53.
Is attached so as to sandwich the lawn 19. The pair of pressure rollers 53 are urged to press each other by a spring (not shown). Thereby, the lawn 19 is nipped and held by an appropriate force.

A claw 51 is provided near the lower pressing roller 53 of the pair of pressing rollers 53. The claw 51 maintains a predetermined posture with respect to the lower pressing roller 53.

Further, a guide roller 63 is provided on a rotation shaft 47 of the arm 45 via a guide arm 65. The distal end of the guide arm 65 is provided with the distal end of a coil spring 67, and the rear end of the coil spring 67 is attached to the frame 17. Thereby, the guide arm 65 always receives the force caused by the coil spring 67. The induced force causes the guide roller 63 to push the lower surface of the lawn 19 upward.

The operation of this embodiment will be described below.
First, the winding of the lawn 19 will be described. When winding, the claw 5 of the forklift 3 is inserted into the space 13 of the underframe 11 of the lawn paving and winding device 1, and the device 1 is lifted. The end of the mat-like lawn 19 passes between the pressure rollers 53, passes over the guide rollers 63, and is wound around the winding shaft 23 from above. In this state,
The forklift 3 moves forward, and the electric motor of the drive housing 41 operates to rotate the winding shaft 23 to wind the lawn 19. At this time, the arm 45 is
The lower claw 9 lowers the claw 51 into the grass 19. Since the position of the lawn 19 with respect to the claw 51 is held by the pressing roller 53, the claw 51 comes into contact only with the root of the lawn 19 and peels off the lawn 19 without damaging the lawn 19.
The pressing roller 53 and the claw 51 are elastically supported by the arm 45 by a spring 61, and peel off while receiving the lawn 19 softly. If the root of the lawn 19 is strongly entangled with the growing ground or the leaf of the artificial turf, the forklift 3 is moved forward and the winding shaft 2 is moved.
The rotation of the arm 4 is temporarily stopped by the hydraulic cylinder 49.
5 can be lifted and the root at that portion can be strongly peeled off with the claw 51 at the tip.

The diameter of the peeled and rolled lawn 19 gradually increases. Grass 19
Is weaker, the force of the guide roller 63 pushing up the lower surface of the lawn 19 overcomes and rises. Thereby, even if the diameter of the roll of the lawn 19 changes, it is possible to prevent the lawn 19 from unnecessarily loosening between the pressing roller 53 and the winding shaft 23 and exerting an excessive force.

The control device in the drive housing 41 adjusts the electric current to the electric motor in accordance with the change in the diameter of the roll of the lawn 19 wound up. If it is smaller, increase the rotation speed. Thus, even if the take-up speed of the lawn 19 is kept constant and the forklift 3 moves forward at a constant speed, an excessive force can be prevented from being applied to the lawn 19. When the winding is completed, the forklift 3 transports the lawn 19 to a predetermined position while lifting the device 1 of the present embodiment.

Next, unwinding will be described. The unwinding operation is substantially the reverse of the winding operation. That is, the electric motor of the drive housing 41 rotates the winding shaft 23 in the reverse direction while the forklift 3 moves backward. Although the diameter of the roll of the lawn 19 is reduced by being unwound, the operation of the guide roller 63 and the operation of the control device at this time are the same as those at the time of the above-mentioned winding, and the excessive force is applied to the lawn 19. To prevent. Also, when unwinding, the tip of the arm 45 is lowered, so that the lawn 19 is brought close to the ground and is laid accurately. When the unwinding is completed and the take-up shaft 23 is empty, the forklift 3 transports the device 1 to a predetermined place as it is, and the other device 1 (the lawn 19 is attached to the take-up shaft 23).
Is lifted and transported, the lawn 19 is unwound again, and the spread operation is continued.

As described above, according to the lawn bedding winding device 1 of the present embodiment, even if the root of the lawn 19 is entangled with the soil of the breeding ground or entangled with the leaves of the artificial turf, The claw 51 at the tip of the arm 45 allows the root to be peeled off.
In addition, the action of the pinching roller 53 allows the claw 51 to accurately contact only the root, thereby preventing the lawn 19 from being damaged. Further, the action of the guide roller 63 prevents the lawn 19 from being loosened and excessive force from being applied even if the diameter of the roll of the wound lawn 19 changes. Further, the pressing roller 53 is elastically supported by a spring, softly receives the lawn 19, and makes it difficult for the lawn 19 to be damaged.

The forklift 3 may be moved by an engine or may be moved by an electric motor. According to the electric motor, the generation of exhaust gas can be prevented, so that the work can be performed without polluting the air even in the dome type stadium.

[0023]

As described above, according to the lawn sheet packing and winding device of the present invention, the claw at the tip of the arm accurately comes into contact with the lawn root held by the pressure roller to pull the root. Because it is peeled off, quick winding work can be performed without applying excessive force to the lawn. Also, even if the diameter of the lawn wound in a roll shape changes, it is possible to prevent the lawn roller from applying an excessive force to the lawn by the action of the guide roller.

When the lawn is unwound and spread, the pinching rollers can bring the lawn closer to the ground and perform accurate spread.

[Brief description of the drawings]

FIG. 1 is an overall side view showing one embodiment of the present invention.

FIG. 2 is an enlarged view showing an apparatus which is a main part of FIG.

FIG. 3 is an enlarged perspective view of a main part of FIG. 2;

FIG. 4 is an exploded perspective view of another main part of FIG. 2;

FIG. 5 is an exploded perspective view of a main part of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 lawn bedding winding device 3 forklift 5 fork 7 guide 9 hydraulic cylinder 11 underframe 13 space 15 pedestal 17 frame 19 lawn 21 winding shaft mechanism 23 winding shaft 25 recess 27 roller 29 guide tire 31 rotating gears 33, 35, 37, 39 Gear 41 Drive Housing 43 Drive Gear 45 Arm 47 Rotating Shaft 49 Hydraulic Cylinder 51 Claw 53 Nipping Roller 55 Rod 57 Mounting Bracket 59 Pin 61 Spring 63 Guide Roller 65 Guide Arm 67 Coil Spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01C 1/04 A01C 11/00

Claims (2)

(57) [Claims] A winding shaft mechanism for winding or unwinding a mat-like lawn; a frame provided with the winding shaft mechanism; a space formed below the frame and into which a forklift claw is inserted; A pair of arms provided on the underframe and moving up and down, a claw provided at the end of the arm to peel off the lawn, and a pressure roller provided on the arm and holding the lawn with respect to the claw with respect to the claw are provided. A lawn sheet packing and winding device, characterized in that: 2. The lawn sheet packing and winding device according to claim 1, wherein a guide roller for guiding the peeled lawn to a winding shaft mechanism is provided on the underframe.