JP2994248B2 - Thatch collection device in thatch collection vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a car that collects swarf cut by a lawn mower.

[0002]

2. Description of the Related Art In golf courses and the like, in order to control the lawn on a course with good quality, maintenance work such as mowing a lawn with a lawnmower and adjusting the height of the lawn is performed regularly.
After mowing, a large amount of thatch is generated, but if the neglect is left untouched, the growth of the turf will be hindered and the competition will be hindered. To clean. The thatch collection vehicle rotates the thatch collection rotor mounted in the horizontal direction, rakes the ground thatch with the blades radially planted on its outer periphery, and sucks it up with a suction fan, but depending on the state of the cut thatch. In order to efficiently collect thatch, it is necessary to change the pitch of the blades of thatch collection rotor.In this case, prepare multiple types of thatch collection rotors with different blade pitches and, if necessary, , There is a problem that replacement requires a great deal of cost and labor.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hatch collecting rotor in which a blade most suitable for collecting and a pitch thereof can be easily mounted in accordance with the state of the hatch to be collected.

[0004]

In order to achieve the above object, according to the present invention, a blade connecting device, in which a plurality of blades are planted in a line, is detachably connected to a rotation shaft of the above-mentioned gathering rotor. Radially arranged on the rotation axis.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional plan view of a That collection vehicle embodying the present invention, and FIG. 2 is a side view thereof. In front of the self-propelled vehicle 1, there is provided a collection device 2 having a thatch collection rotor 5, and a cart 4 having a box-shaped rotor cover 3 which covers the outer periphery of the thatch collection rotor 5 and has an open bottom surface. The bogie 4 supports the rotor cover 3 by providing a pair of supporting front wheels 11 whose height is adjustable in the front and a pair of fixed rear wheels 12 in the rear. The bogie 4 maintains a predetermined height along the ground according to the inclination and unevenness of the ground, and is connected to the self-propelled vehicle 1 by an arm 13 protruding forward of the self-propelled vehicle 1 and a rotor cover support rod 14, and Drive ahead of car 1. The cart 4 is made rotatable about the axis of the arm 13 and the rotor cover support rod 14 is made rotatable about an axis perpendicular to the axis of the arm 13 so that the cart 4 becomes the self-propelled vehicle 1. For rolling and pitching.

FIG. 3 is a perspective view showing the configuration of a collecting apparatus embodying the present invention, FIG. 4 is a side sectional view of the same, and FIG. 5 is a front sectional view of the collecting apparatus. At the front of the top surface of the rotor cover 3, a horizontally long suction port 31 having substantially the same length as the rotor 5 is opened along the axial direction of the collecting rotor 5, and the cross section of the suction port 31 projects obliquely upward and rearward. And the other end of the suction duct 19 is connected to a horizontally long supply port 32 of a hollow thatch lateral feeding section 20 provided outside the rotor cover 3. Thatch collection rotor 5
, And a transport port 33 is opened at the end of the lateral direction in the feed direction. Then, conveyance ducts 7a and 7b extending rearward from the conveyance port 33 are provided, and are connected to a bag filling device 9 at the rear of the vehicle 1 through a suction fan 8 attached to a side surface of the vehicle 1. A tank may be provided in place of the bagging device 9, or a Thatch may be stored in a transport vehicle that accompanies the self-propelled vehicle 1.

At the center of the rotor cover 3, as shown in FIG. 5, an elevating frame 16 is provided extending in the front-rear direction in parallel with the left and right side walls 15, and the rear end of the elevating frame 16 is fixed at the rear of the rotor cover 3. A pivot (not shown) provided in parallel with the axle of the rear wheel 12 rotatably supports the pivot, thereby holding the front portion of the lifting frame 16 so as to be swingable only in the vertical direction. The adjustable wheel 17 is mounted. As a result, the ground contact wheel 17 moves up and down in accordance with the unevenness of the ground surface and moves up and down in the vertical direction, so that the distance between the ground surface and the Thatch collection rotor 5 is always kept constant. Two thatch collecting rotors 5 are coaxially arranged between the left and right side walls 15 of the rotor cover 3 and the elevating frame 16, and both universal joints 24 that are in contact with the elevating frame 16 are connected and integrated to be bent at the connecting portion. A flexible bent portion 27 is formed. Next, bearings 21 are fixed to the left and right side walls 15 of the rotor cover 3 and the center of the lifting frame 16, respectively, and a pair of integrally-connected thatch collecting rotors 5 are connected to the rotating shaft 18 via universal joints 24 at both ends thereof. Elevating frame 1 is provided with bent portions 27 on left and right side walls 15.
6 is supported. Furthermore, the rotation axis 1 of the
8 is protruded from one of the left and right side walls 15, and a two-stage pulley 25 is attached to the end thereof, and the power of the self-propelled vehicle 1 is transmitted by a belt to rotate the two-stage pulley 25 to drive the thatch collection rotor 5. At the same time, the rotation of the two-stage pulley 25 rotates the spiral 6 via the pulley 26 and the belt. Even if a dedicated drive motor is provided instead of the power of the self-propelled vehicle 1, the same function can be exhibited. The bent portion 27 pivotally supported by the lifting frame 16 is bent by the universal joint 24 following the vertical movement of the grounding wheel 17, and rotates smoothly through the universal joint 24 even in the bent state.

FIG. 6 is an exploded perspective view of the thatch collecting rotor 5. The blade connector 22 is provided with four sets of blade supports 28 radially protruding from the rotating shaft 18, and a blade having an L-shaped cross section parallel to the rotating shaft 18. The mounting plate 29 is fixedly formed.
Then, blades 23 made of an elastic material such as rubber are implanted in a line at equal intervals on a substrate having a U-shaped cross section to form
Is formed, is detachably fitted to the blade mounting plate 29, and is bolted to form the thatch collecting rotor 5 in which the blades 23 are radially arranged. In this embodiment, the blade connecting device 30 has a U-shaped cross section.
It is not limited to this shape. By preparing in advance a plurality of blade connecting tools 30 with different intervals of the blades 23 and selecting one having a different interval between the blades 23 according to the state of the hatch, it is possible to use the thatch collecting rotor 5 having an optimum blade pitch. The collection of thatch can be performed effectively.

[0009] The Thatch collection rotor 5
The height of the supporting front wheel 11 is adjusted so as to be held close to the ground surface, so that the tip of the blade 23 does not directly hit the ground surface during traveling, so that the hatch can be adjusted to a range where it can be scraped. On the other hand, the grounding wheel 17 attached to the tip of the lifting frame 16 is brought into close contact with the ground surface by its own weight, so that the tip of the blade 23 of the left and right thatch collecting rotors 5 connected to each other on a flat ground is substantially horizontal. It moves forward following the unevenness of the surface while changing the height of the front end of the lifting frame 16. The bent portion 27 of the thatch collecting rotor 5 moves up and down according to the elevating frame 16, and holds the left and right thatch collecting rotors 5 inwardly inclined by the universal joint 24 with the bearings 21 of the left and right side walls 15 as fulcrums. The two-stage pulley 25 is rotated by the power from the self-propelled vehicle 1, and the left and right thatch collection rotors 5 are rotated in the direction opposite to the running direction while being inclined along the inclination of the ground surface, and the blades 23 of the thatch collection rotor 5 are rotated. Is scooped up in the rotor cover 3 and collected through the suction duct 19 to the hatch lateral transport section 20. The tip of the blade 23 is rotated close to the ground surface so that the notch can be collected not only on a flat lawn but also on a rugged lawn by rotating the thatch collecting rotor 5 in an inclined state along the ground. Can be. The pulley 26 is rotated from the two-stage pulley 25 via a belt, and the spiral 6 is rotated to send the hatch in the hatch lateral transport section 20 to the transport duct 7a, and is sucked up by the suction fan 8 through the transport duct 7a. 1 is sent to a bag filling device 9 attached to the rear part, and is stored in thatch storage bag 10.

As described above, according to the present invention, the width of the rotor cover 3 is made large so that a wide range of thatch is raked by the thatch collection rotor 5, and at the same time, the rotor cover 3
In addition to the above, the collected satch is moved into the traverse unit 20 and the helical unit 6 sends the satch to the transfer port 33 connected to the suction fan 8 to thereby provide the suction force of the suction fan 8. Can be reliably conveyed to the bagging device 9 without increasing the size. In addition, by selecting the length and the mounting pitch of the blades 23 and replacing the blade connecting tool 30 according to the state of the thatchs to be collected, thatchatch can be reliably collected and similar objects can be collected. . .

[0011]

As described above, according to the present invention, the state of the collecting thatch is obtained by selecting and removably attaching blade connecting devices having different blade lengths and pitches to the blade coupling body of the collecting rotor. Thus, it is possible to efficiently and surely collect the thatch by changing the length of the blade and the pitch of the blade, thereby making it possible to improve the efficiency of the thatch collection operation, save labor, and reduce costs.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional plan view of a That collection vehicle embodying the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view of a collection device embodying the present invention.

FIG. 4 is a cross-sectional view of a thatch collecting apparatus embodying the present invention.

FIG. 5 is a front sectional view of the same.

FIG. 6 is an exploded perspective view of the Thatch collection rotor embodying the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-propelled vehicle 2 Collection device 3 Rotor cover 4 Dolly 5 Thatch collection rotor 6 Thatch traverse spiral 7 Transport duct 8 Suction fan 9 Bag packing device 10 Thatch storage bag 11 Support front wheel 12 Fixed rear wheel 13 Arm 14 Rotor cover support rod 15 Side wall 16 Elevating frame 17 Grounding wheel 18 Rotating shaft 19 Suction duct 20 Thatch traverse section 21 Bearing 22 Blade connector 23 Blade 24 Universal joint 25 Two-stage pulley 26 Pulley 27 Bend section 28 Blade support section 29 Blade mounting plate 30 Blade connection Tools 31 Suction port 32 Supply port 33 Transport port

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 90/00-90/16 A01D 34/00-34/86

Claims (1)

(57) [Claims] 1. A thatch collecting vehicle for collecting a surface thatch by rotating a thatch collecting rotor traversing a front part of a self-propelled vehicle. Thatch collecting device, which is detachably connected to a rotating shaft of a rotor, and in which the blades are radially arranged on the rotating shaft.