JP6918758B2 - Mowing recovery device that collects vegetation cut by a mower - Google Patents

Description

The present invention relates to a mowing and collecting device that collects vegetation cut by the mowing machine when a mowing machine is attached to the tip of an arm of a power shovel to mow the grass.

Various mowers have been developed in the past, and when mowing a small area (for example, the garden of a private house), a hand-pushed mower that the worker manually moves forward and backward is widely used, and a large area (for example, a park, etc.) When mowing grass in a stadium, etc.), a riding-type mower that allows workers to get into the driver's cab and run is widespread.

However, although these mowers are suitable for mowing work in horizontal and flat places, they are used in places with steep slopes (for example, road slopes, railroad track slopes, etc.) or in places with severe irregularities (for example, civil engineering sites, etc.). ) Has a problem that it is difficult to use. Therefore, as a mowing machine suitable for mowing work in a place with a large slope or a place with severe unevenness, a mowing machine attached to the tip of an arm of a power shovel has been put into practical use.

A mower with large dimensions and heavy weight can be attached to the arm of the power shovel for easy use. Therefore, it is possible to carry out the mowing work by attaching a high-power mowing machine, and as a result, there is an advantage that it contributes to the improvement of the efficiency of the mowing work. However, the mowing work with a high-power mower has a drawback that the cut vegetation is likely to be scattered over a wide area. That is, there is a problem that it takes a long time to collect the scattered vegetation when transporting the vegetation to a predetermined collection site after the mowing work is completed.

Then, in response to this problem, a device for recovering vegetation cut by a mower mounted on a power shovel without scattering (hereinafter referred to as a mowing recovery device) is being studied.

For example, Patent Document 1 discloses a technique in which a basket is attached to a mower and the vegetation released from the mower is housed in the basket to recover the vegetation without scattering. In this technology, a basket is used as a mowing and recovery device, but it does not have a function to prevent damage to the basket caused by pebbles and earth and sand released from the mower together with vegetation flying in the basket and colliding with each other. In addition, when the vegetation collected in the basket is discharged to the collection site (or the truck bed for transporting to the collection site), the entire basket is rotated, so the arms, links, and them are connected. There is a problem that the configuration of the pin to be used is complicated and a failure is likely to occur.

Patent Document 2 discloses a technique of attaching a box-shaped basket body to a mower and accommodating the vegetation released from the mower in the basket body to recover the plants without scattering them. With this technology, when the collected vegetation is discharged to the collection site (or the truck bed for transporting to the collection site), the pebbles released from the front of the box-shaped cage (that is, released from the mower and fly inside the cage). The surface where the sand grains collide with each other) and the lower surface are opened, and the plants and pebbles contained in the cage are dropped. At that time, since the front surface and the lower surface of the basket body rotate individually and in opposite directions, there is a problem that the configuration of the link or the chain becomes complicated and a failure is likely to occur. Moreover, since an electric motor is used as a power source to rotate the front and bottom surfaces of the cage, wiring is required to connect the battery and the electric motor, which inevitably increases the manufacturing cost and causes an electrical system failure. There is also a fear that it will occur.

Japanese Unexamined Patent Publication No. 7-79627 Japanese Patent No. 5392570

The present invention solves the problems of the prior art, can be used in combination with a mower attached to the tip of the arm of a power shovel, and has excellent durability by preventing breakdown and damage with a simple configuration. It is an object of the present invention to provide a cutting and collecting device having a property and being inexpensive.

The present inventor does not use a dedicated discharge device when discharging the vegetation collected in the box-shaped storage container to the collection site (or the loading platform of the truck for transporting to the collection site), and the vegetation in the storage container. We examined a technique to simplify the process by letting it fall naturally. Then, we focused on a hydraulic cylinder as a power source for opening and closing a member (hereinafter referred to as a floor member) that is the lower surface of a storage container in order to allow plants to fall naturally. In other words, the power shovel is always equipped with a large hydraulic cylinder for driving attachments (forks, buckets, etc.) used in civil engineering work, so by utilizing that hydraulic system, the cutting and recovery device can be simplified. Can be achieved.

In addition, it is clear that the larger the area of the opening (hereinafter referred to as the opening) for discharging the vegetation from the storage container by free fall, the easier it is to discharge the vegetation. However, in order to secure a large-area opening, the area of the floor member that opens and closes must be increased, and if the floor member is divided into a plurality of parts and opened and closed, the configuration of the cutting and collecting device becomes complicated. It is inevitable that it will become. That is, when a plurality of power sources are arranged to drive a plurality of floor members that open and close, the piping and wiring for supplying power (for example, hydraulic power, electric power, etc.) are complicatedly complicated. Alternatively, when opening and closing a plurality of floor members with one power source, the configuration of links and chains for transmitting the driving force becomes complicated. On the other hand, if the strength of the floor member that opens and closes (hereinafter referred to as the openable floor member) is sufficiently secured, one large-area openable floor member can be easily opened and closed by one power source. can.

The present invention has been made based on such findings.
That is, the present invention is a mowing and collecting device that collects vegetation cut by a mower attached to the tip of an arm of a power shovel in a box-shaped storage container.
Two wall members that serve as the sides of the storage container for accommodating vegetation,
A single ceiling member that is connected across the top of the wall member to form the upper surface of the storage container.
A single retractable floor member that is rotatably attached to the front end of the ceiling member to form the front and bottom surfaces of the storage container.
One hydraulic cylinder arranged on the ceiling member as a power source for rotating the retractable floor member,
A fixed holding member that holds the storage container in contact with the mower by fixing the wall member to the mower.
It is a cutting and collecting device that has ventilation holes in the wall member and the ceiling member.

According to the present invention, the durability of the mowing and recovery device used in combination with the mower attached to the tip of the arm of the power shovel can be improved, and the manufacturing cost can be reduced, which is extremely effective in industry.

It is a perspective view which shows typically the example which made the openable floor member of the reaping recovery device of this invention a closed posture. FIG. 5 is a perspective view schematically showing an example in which the openable floor member shown in FIG. 1 is in an open posture.

FIG. 1 is a perspective view schematically showing an example in which the cutting and collecting device of the present invention is attached to a mower and the retractable floor member is in a closed posture, and FIG. 2 is an example in which the retractable floor member is in an open posture. It is a perspective view which shows typically. Reference numeral 2 in the drawing is a pin hole for inserting a pin (not shown) when the mower 1 is attached to the tip of an arm of a power shovel (not shown). Reference numeral 3 is a lid member forming a side wall of the mower 1, and when the mowing recovery device 4 is attached to the mower 1, it functions as a lid of the storage container 5.

The side surface of the box-shaped storage container 5 is composed of two wall members 6. Further, one ceiling member 7 is arranged so as to straddle the upper ends of the two wall members 6 to form the upper surface of the storage container 5. Vents 8 are provided in the wall member 6 and the ceiling member 7.

An openable floor member 9 is rotatably attached to the front end of the ceiling member 7, and the openable floor member 9 is placed in a closed posture when mowing work (see FIG. 1). Then, along with the air flow generated by operating the mower 1, the vegetation cut by the mower 1 is discharged into the storage container 5. Since the wall member 6 and the ceiling member 7 of the storage container 5 are provided with the ventilation holes 8, the airflow flows out of the storage container 5 through the ventilation holes 8. On the other hand, the cut vegetation remains in the storage container 5. In this way, the mowed vegetation can be collected in the storage container 5 while performing the mowing work.

Although the slit-shaped ventilation hole 8 is shown in the drawing, the shape of the ventilation hole 8 is not particularly limited in the present invention. For example, a ventilation hole composed of a plurality of holes having a small diameter, a mesh-like ventilation hole, or the like can be applied without any trouble.

In such mowing work, pebbles and sand grains on the ground are released into the storage container 5 together with the mowed vegetation. Then, the pebbles and sand grains fly in the storage container 5, collide with the front surface of the storage container 5, and then fall to the lower surface of the storage container 5. Therefore, since the front surface and the lower surface of the storage container 5 need to be provided with sufficient strength to withstand the collision and weight of pebbles and sand grains, the front surface and the lower surface of the storage container 5 are not provided with ventilation holes 8 and are plate-shaped. The structure of.

When the storage container 5 is filled with mowing work in this way, the power shovel self-propells and moves to a collection site for vegetation, pebbles, and sand grains (or a truck stop for transporting to the collection site), and then the storage container. Open the lower surface of 5. At this time, if only the lower surface is opened, the area of the opening is small. Since it is necessary to operate the storage container 5 to swing it in the vertical direction and the horizontal direction, the storage container 5 is deformed or damaged.

Therefore, in order to widen the opening through which vegetation, pebbles, and sand grains naturally fall, the front surface is opened in addition to the lower surface of the storage container 5. As described above, the front surface and the lower surface of the storage container 5 have sufficient strength, so if the front surface and the lower surface are connected to form an integrated structure (that is, the openable floor member 9), one unit is powered. By arranging the source 11 on the ceiling member 7 of the storage container 5, the front surface and the lower surface of the storage container 5 can be opened at the same time and easily (that is, the openable floor member 9 can be opened). (See FIG. 2). As a result, plants, pebbles, and sand grains can be naturally dropped from the storage container 5 in a short time, and since it is not necessary to swing the storage container 5, deformation or damage of the storage container 5 can be prevented.

After discharging the vegetation, pebbles, and sand grains in the storage container 5, the retractable floor member 9 is rotated using the same power source 11 to close the openings on the front and lower surfaces (that is, the retractable floor member 9 is closed. Closed posture). Then, the excavator self-propells again and returns to the mowing work site.

A hydraulic cylinder is used as the power source 11 for rotating the retractable floor member 9. Since the power shovel is equipped with a large hydraulic cylinder for driving the attachment, the cutting and recovery device 4 can be simplified by utilizing the hydraulic system.

Further, the fixing holding member 10 for holding the storage container 5 in contact with the mower 1 (that is, fixing the mowing recovery device 4 to the mower 1) is arranged on each of the two wall members 6. The means for connecting the fixed holding member 10 and the mower 1 is not particularly limited. It is desirable to use bolts, pins, etc. to allow the cutting and recovery device 4 to be connected or separated from the mower 1.

A mower was attached to the arm of the power shovel, and the mowing and recovery device of the present invention was attached to the mower, and the mowing work on the slope of the highway was carried out for two days. The procedure will be described.

First, the retractable floor member was placed in a closed posture (see FIG. 1), and the vegetation on the slope was cut and collected in the storage container. When the storage container was full, mowing was temporarily stopped, the power shovel was run to the truck stop, and the retractable floor member was opened above the truck bed (see FIG. 2). In this way, after the vegetation was naturally dropped without swinging the storage container, the retractable floor member was closed again, the power shovel was run to the work place, and mowing was resumed.

Such mowing work was carried out for 7 hours / day (= 14 hours in total). During that time, there was no failure of the cutting and recovery device and damage to the storage container, and the power shovel was able to operate smoothly.

1 Mower 2 Pin hole 3 Lid member 4 Mowing and recovery device 5 Storage container 6 Wall member 7 Ceiling member 8 Ventilation hole 9 Openable floor member
10 Fixed holding member
11 Hydraulic cylinder

Claims (1)

A mowing and recovery device that collects vegetation cut by a mower attached to the tip of the arm of a power shovel in a box-shaped storage container.
Two wall members that serve as side surfaces of the storage container for accommodating the vegetation,
A single ceiling member that is connected across the upper end of the wall member to form the upper surface of the storage container.
A single retractable floor member rotatably attached to the front end of the ceiling member to form the front and bottom surfaces of the storage container.
A hydraulic cylinder arranged on the ceiling member as a power source for rotating the openable floor member, and
A fixed holding member that holds the storage container in contact with the mower by fixing the wall member to the mower.
A reaping recovery device, characterized in that the wall member and the ceiling member are provided with ventilation holes.

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