JPH06313308A - Sweeper - Google Patents

Abstract

PURPOSE:To improve the rate of charging mowed grass into a grass collecting container, and to reduce the number of times of emitting and discharging the mowed grass by compressing the mowed grass which is mowed, absorbed up and transferred through wind force for cramming it into the grass collecting container. CONSTITUTION:Mowed grass on the ground is raked up by a driven rotary brush 7. The raked mowed grass is absorbed up through a duct 8 by a blower 9 and transfered. The absorbed up mowed grass is compressed by the spiral screw of an auger 14 rotating about an axial center P, and simultaneously crammed into the grass collecting container 10. On the other hand, absorbed up air is exhausted through a filter 16 from an exhausting port 17. When the grass collecting container 10 is filled up with the mowed grass, an oscillating arm is swung up, and an expansion cylinder is operated to open a movable cover 106 for discharging the compressed mowed grass. Thus, since the mowed grass is compressedly crammed, the number of times for dumping the mowed grass can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sweeper for collecting cut grass.

[0002]

2. Description of the Related Art A conventional sweeper is disclosed in, for example, Japanese Patent Laid-Open No.
As shown in Japanese Patent No. 314647, it is general that the blower attached to the mower side transfers the grass cut by the mower to the grass collection container by wind power transfer. Is equipped with an air exhaust unit for exhausting the exhaust air from the transfer of wind power.

[0003]

However, in the actual lawn mowing work, even if a considerably large grass collection container is mounted, it tends to fill up unexpectedly early, and the grass is often cut at a predetermined place many times. There was room for improvement in terms of work efficiency because it was necessary to throw it away. An object of the present invention is to improve the filling efficiency of grass in a grass container, reduce the number of times grass is released, and improve the efficiency of mowing work.

[0004]

In order to achieve the above object, the present invention provides a scraping mechanism for scraping up grass, a wind force conveying mechanism for sucking up and transferring the scraped grass, and a scooped grass. The sweeper is configured to include a compression mechanism that compresses and packs the grass in the grass container, and an air exhaust unit that releases the wind by the wind transport mechanism.

[0005]

That is, since the sucked grass is compressed and packed in the grass container, the grass packing rate in the grass container is improved as compared with the conventional method of simply packing by the wind force, and the same grass is collected. Even with the volume, it is possible to increase the amount of grass cut.

[0006]

Therefore, since the amount of collected grass can be increased by adding the compression mechanism, the number of times of discharging the grass can be reduced and the work efficiency can be improved, or the size of the grass container can be made smaller, and the grass cutter can be used. We were able to provide a sweeper that can be made compact.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a self-propelled sweeper, in which 1 is an engine, 2 is a front wheel, 3 is a rear wheel, 4 is a control section, and 5 is a traveling body. In this sweeper, the grass clippings cut by a lawn mower and scattered on the ground are sucked up and collected in the grass container 10.

The sweeper includes a scraping mechanism 6 for scraping grass on the ground by a driving rotary brush 7, and a blower (corresponding to a wind transport mechanism) 9 for sucking and transferring the scraped grass through a duct 8. A compression mechanism 11 that compresses and packs the sucked grass in the grass container 10 and an air exhaust unit 12 that allows the air conveyed by the blower 9 to escape to the outside. The compression mechanism 11 includes an auger 14 that is a short spiral screw that is rotatable around the front-rear axis P, and an actuator 13 that is an electric motor or a hydraulic motor, and is provided in the sweeper body 15. The air exhaust unit 12 is composed of a filter 16 stretched on the ceiling surface of the grass clippings transfer path W between the blower 9 and the auger 14, and an exhaust port 17.

The grass container 10 has a front opening 10a that is detachably butted against a rear opening of the sweeper body 15 at the rear end of the auger 14, and swings on a protruding frame 18 serving as the sweeper body 15. It is supported via a moving arm 19. In addition, the rear surface of the grass container 10 is configured with an opening / closing lid 10b that can be swingably opened / closed at a fulcrum X.
It is opened and closed by 0. The compression mechanism 11 and the grass collection container 10 are provided in a pair on the left and right. As shown by the phantom line (lower side) in the figure, when the swinging arm 19 is swung up and moved by a hydraulic cylinder or the like, the grass collecting container 10 is moved by the relationship between the center of gravity of the grass collecting container 10 and the connecting point of the swinging arm 19. The attitude of the container 10 is changed so that the opening / closing lid 10b is at the bottom. Then, in this state, the telescopic cylinder 20 is operated to open the opening / closing lid 10b, and the compressed grass is discharged. The swinging arm 19 can be further swung from the position shown in the figure so that the grass container 10 can be lifted up, stacked and discharged, and raised to a position shown by an imaginary line (upper one).

[Other Embodiments] A reciprocating type compression mechanism 11 using a reciprocating piston or a compression mechanism 11 having an escalator structure for sequentially feeding out a plurality of compression moving pressing plates may be used. Alternatively, a trolley may be equipped with a sweeper and pulled by a tractor during work.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an overall side view of a partially cutout showing a structure of a self-propelled sweeper.

[Explanation of symbols]

 6 Raising mechanism 9 Wind power transport mechanism 10 Grass collection container 11 Compression mechanism 12 Air exhaust section

Claims (1)

[Claims] 1. A scraping mechanism (6) for scraping up grass,
A wind transport mechanism that sucks up and transports the grass that has been scraped (9)
A compression mechanism (11) for compressing and packing the sucked grass in the grass container (10); and the wind transport mechanism (9).
A sweeper comprising: an exhaust unit (12) for releasing the wind.