JPH11178420A - Mower and mowing adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mower capable of being efficiently prevented from being damaged even if a hammer knife hits a stone, and capable of mowing grass from the root part. SOLUTION: This mower is constituted of a driving arm 4 installed in a construction machine body, and a mowing adaptor comprising a driving device 16 having a hydraulic motor rotatably driving a rotating shaft rotatably attached to the tip of the driving arm 4 through a connecting metal fitting rotatably movable in the front and rear and right and left directions in a cover body 7 opened downward, plural hammer knife supporters attached to the rotating shaft at a prescribed interval and having metal fitting-attaching holes, metal fittings attached to each metal fitting-attaching holes of the hammer knife supporters and having nearly U shape or mountain shape, and a pair of hammer knives bent at the tip parts in both side directions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mowing machine using a construction machine such as a tractor, a power shovel or a backhoe, and a mowing adapter mounted on the construction machine.

[0002]

2. Description of the Related Art Conventionally, this type of mower has a hammer knife fixedly attached to a rotating shaft at a predetermined interval.

[0003]

In a conventional mower using a construction machine, a hammer knife is fixedly mounted on a rotating shaft, so that the hammer knife hits a stone located on the ground during mowing and is damaged. There was a drawback that the operation had to be performed so as to be able to cut at a position above the part, and the operation could only be performed by a skilled person.

The present invention has been made in view of the above-mentioned conventional drawbacks,
It is an object of the present invention to provide a mowing machine and a mowing adapter capable of efficiently preventing a hammer knife from being damaged even when it hits a stone, enabling an unskilled person to easily operate the mower, and cutting a grass from a root portion of grass. .

The above and other objects and novel features of the present invention will become more completely apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only, and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above object, the present invention provides a tractor capable of traveling on a road,
A construction machine body such as a power shovel or a backhoe, a drive arm installed on the construction machine body that can be driven in the up, down, left, and right directions, and a connection bracket rotatable in the front, rear, left, and right directions at the tip of the drive arm. A cover body having a lower part opened through the cover body, a rotation shaft rotatably mounted in the cover body, and actuated by hydraulic pressure of the construction machine main body mounted on the cover body to rotate the rotation shaft. A plurality of hammer knife supports each having a mounting bracket mounting hole fixed at a predetermined interval on the rotating shaft, and approximately U mounted in the mounting bracket mounting holes of these hammer knife supports. -Shaped or almost chevron-shaped mounting bracket,
A mowing adapter comprising a pair of hammer knives formed in the base and having a long hole-shaped mounting hole into which the mounting bracket is inserted, which is mounted on each of the mounting brackets, and having a distal end bent in both directions. Make up.

[0007] The present invention also relates to a connection that is rotatably mounted in a front-rear and left-right direction on a tip end of a drive arm that is driven in the vertical and horizontal directions of a construction machine such as a tractor, a power shovel or a backhoe that can run on a road. A metal fitting, a cover body having a lower part opened and the connecting metal part attached to a substantially central upper part, a rotating shaft rotatably mounted in the cover body, and the cover body so as to rotate the rotating shaft. A driving device having a hydraulic motor mounted thereon, a plurality of hammer knife supports having mounting bracket mounting holes fixed at predetermined intervals to the rotating shaft, and mounting to the mounting bracket mounting holes of these hammer knife supports, respectively. The substantially U-shaped or substantially chevron-shaped mounting brackets, and the mounting brackets respectively attached to these mounting brackets are inserted. Long hole-shaped mounting hole is formed in the base, the tip portion constitutes the mowing adapter and a pair of hammer knives bent on either side direction of.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 10, reference numeral 1 denotes a mower according to the present invention, and the mower 1 is a power shovel as a construction machine main body capable of traveling on a road 2. 3 and a mowing adapter 5 attached to the tip of a drive arm 4 that is driven in the vertical and horizontal directions of the power shovel 3.

[0010] The mowing adapter 5 is opened at the lower part,
A cover body 7 having lower portions at both ends protruding downward and arcuate guide pieces 6, 6 at the lower end, and a channel-shaped fixing bracket fixed to a substantially central portion of the cover body 7 by welding or the like. 8 and a lower end thereof is inserted into the fixing bracket 8, and is pivotally supported by a pivot pin 9 so as to be rotatable in the front-rear direction. Fitting body 1 pivotally supported so as to be rotatable in the direction
1, a rotating shaft 13 rotatably attached to a substantially central portion in the cover body 7, and a clutch 14 connected to the cover body 7 so as to rotate the rotating shaft 13. The mounted excavator 3
A driving device 16 having a hydraulic motor 15 operated by hydraulic pressure, a plurality of hammer knife supports 18 having mounting bracket mounting holes 17 fixed to the rotating shaft 13 in a plurality of rows at predetermined intervals, and A substantially U-shaped mounting bracket 21 mounted on the mounting bracket mounting hole 17 of the hammer knife support 18 by a bolt 19 and a nut 20, respectively, and the mounting bracket 21 mounted on each of these mounting brackets 21 are inserted. A long hole-shaped mounting hole 22 is formed in the base portion, and a pair of hammer knives 23, 23 whose front end portions are bent in both sides and a portion excluding a lower portion of the front opening portion 24 of the cover body 7 are covered. A cover 25 made of rubber or a soft synthetic resin material, which is attached to the cover member 7, and a roller 2 attached to a lower rear position of the cover body 7. It is composed of a.

In the mowing machine 1 having the above construction, the tip of the drive arm 4 of the power shovel 3 is positioned on the side of the road 2 or the like, and the mowing adapter 5 is placed on the ground on the side where the grass is growing on the side. Abut the excavator 3 in this state.
, The cover body 7 is rotated in the front-rear and left-right directions by the connection fittings 12 and moves along the shape of the ground. During this movement, the rotating shaft 13 is rotated by operating the driving device 16, so that the plurality of pairs of hammer knives 23, 23 are moved outward by centrifugal force to a position where they do not protrude from the lower ends of the guide pieces 6, 6. Rotate in a protruding state to cut the grass. At this time, when the hammer knives 23, 23 collide with the ground stones or the like, the hammer knives 23, 23 shrink or move in the left and right directions by the elongated mounting holes 22, 22 to absorb the impact force. To prevent the hammer knives 23, 23 from being damaged.

[0012]

FIG. 11 to FIG. 20 show different embodiments of the present invention.
Hereinafter, different embodiments of the present invention will be described. In the description of the different embodiments of the present invention, the same components as those of the first embodiment of the present invention are denoted by the same reference numerals, and duplicate description will be omitted.

The second embodiment of the present invention shown in FIGS. 11 to 15 is mainly different from the first embodiment of the present invention in that the hammer knife support 18A has a long hole-shaped mounting bracket. A mounting hole 27 is formed, and the mounting bracket 21 is formed at the base of the pair of hammer knives 23A, 23A.
In the mowing machine 1A using the mowing adapter 5A having such a configuration, the mowing adapter 5A having the mounting hole 28 in which the mowing adapter 28 is in a loosely inserted state is used.
The same operation and effect as those of the embodiment can be obtained.

The third embodiment of the present invention shown in FIGS. 16 to 20 is mainly different from the first embodiment of the present invention in that a substantially angled mounting bracket 21A is used and a hammer is used. Hammer knives 23, 23 are formed by chamfering both side surfaces of mounting holes 22, 22, which are formed in the bases of knives 23, 23, in the form of long holes.
The first embodiment of the present invention is also applicable to a mowing machine 1B using the mowing adapter 5B configured as described above in that the mowing adapter 5B configured to smoothly move the mower in the left-right direction is used. The same operation and effect as described above can be obtained.

In each of the embodiments of the present invention described above, a power shovel is used as a construction machine main body. However, the present invention is not limited to this, and a tractor to which a drive arm 4 that is driven vertically and horizontally is attached. The same operation and effect can be obtained by using a construction machine such as a backhoe and a front loader.

[0016]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) A tractor, power shovel, backhoe or other construction machine body capable of traveling on a road, a drive arm installed on the construction machine body and capable of driving up, down, left and right, and this drive arm A cover body with an open lower portion, which is attached to a front end portion of the cover via a fitting that can rotate in the front-rear, left-right directions, a rotating shaft rotatably mounted in the cover body, and a rotating shaft for rotating the rotating shaft. A driving device including a hydraulic motor operated by the hydraulic pressure of the construction machine main body attached to the cover body, a plurality of hammer knife supports having mounting bracket mounting holes fixed at predetermined intervals on the rotating shaft; A substantially U-shaped or substantially chevron-shaped mounting bracket respectively mounted in the mounting bracket mounting hole of the knife support. Since a long hole-shaped mounting hole into which the mounting bracket is inserted is formed in the base, and a mowing adapter including a pair of hammer knives whose front ends are bent in both directions. When the hammer knife collides with a stone or the like, the hammer knife can be contracted or moved in the left-right direction. Therefore, the hammer knife can be efficiently prevented from being damaged, and the hammer knife can be used for a long time.

(2) According to the above (1), the hammer knife can be rotated by the centrifugal force during mowing in the same manner as in the prior art. Therefore, mowing can be performed as in the conventional case.

(3) According to (1), even if the hammer knife collides with a stone or the like and moves, it immediately returns to its original state by centrifugal force, and mowing can be performed. Therefore, it is possible to efficiently prevent the tiger from cutting.

(4) Claims 2, 3, and 4 also provide (1) to (4).
The same effect as (3) can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of the present invention.

FIG. 3 is a front view of the mowing adapter according to the first embodiment of the present invention.

FIG. 4 is a side view of the mowing adapter according to the first embodiment of the present invention.

FIG. 5 is a plan view of the mowing adapter according to the first embodiment of the present invention.

FIG. 6 is an enlarged sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a front view of a mounted state of the hammer knife.

FIG. 8 is a side view of an attached state of a hammer knife.

FIG. 9 is an explanatory diagram of an operation state of a hammer knife.

FIG. 10 is an explanatory diagram of a use state according to the first embodiment of the present invention.

FIG. 11 is a side view of the second embodiment of the present invention.

FIG. 12 is a front view of a mowing adapter according to a second embodiment of the present invention.

FIG. 13 is an enlarged sectional view taken along line 13-13 of FIG. 12;

FIG. 14 is a front view showing a state in which a hammer knife according to a second embodiment of the present invention is mounted.

FIG. 15 is a side view showing a state where a hammer knife according to the second embodiment of the present invention is attached.

FIG. 16 is a side view of the third embodiment of the present invention.

FIG. 17 is a front view of a mowing adapter according to the third embodiment of the present invention.

FIG. 18 is a partially cutaway front view of a mounted state of a hammer knife.

FIG. 19 is a side view showing a state where a hammer knife according to a third embodiment of the present invention is attached.

FIG. 20 is an explanatory view of a main part of a hammer knife according to a third embodiment of the present invention.

[Explanation of symbols]

1, 1A, 1B: mower, 2: road, 3: excavator as construction machine body, 4: drive arm,
5, 5A, 5B: mowing adapter, 6: guide piece,
7: cover body, 8: fixing bracket, 9: pivot pin, 10: pivot pin, 11: connecting bracket body, 12: connecting bracket, 13: rotary shaft, 14: clutch, 15: hydraulic motor, 16: drive Apparatus, 17: Mounting bracket mounting holes, 18, 18
A: Hammer knife support, 19: bolt,
20: Nut, 21, 21A: Mounting bracket, 22: Slotted mounting hole, 23, 23A: Hammer knife, 24:
Front opening, 25: cover, 26: roller,
27: slot-shaped mounting bracket mounting hole, 28: mounting hole.

Claims (4)

[Claims] 1. A construction machine body such as a tractor, a power shovel or a backhoe capable of traveling on a road,
A drive arm installed on the construction machine main body, which can be driven in the up, down, left and right directions, and a cover with an open lower portion attached to a distal end portion of the drive arm via a connection fitting rotatable in the front, rear, left, and right directions. A rotating shaft rotatably mounted in the cover, a drive device including a hydraulic motor operated by hydraulic pressure of the construction machine main body mounted on the cover so as to rotate the rotating shaft, and the rotating shaft. A plurality of hammer knife supports having mounting bracket mounting holes fixed at predetermined intervals, substantially U-shaped or substantially mountain-shaped mounting brackets respectively mounted in the mounting bracket mounting holes of these hammer knife supports; An elongated mounting hole is formed in the base for inserting the mounting bracket to be mounted on the mounting bracket, and the distal ends are formed on both sides. Mower, characterized in that it comprises a mowing adapter consisting of a pair of hammer knives bent into. 2. A construction machine body such as a tractor, a power shovel or a backhoe that can run on a road;
A drive arm installed on the construction machine main body, which can be driven in the up, down, left and right directions, and a cover with an open lower portion attached to a distal end portion of the drive arm via a connection fitting rotatable in the front, rear, left, and right directions. A rotating shaft rotatably mounted in the cover, a drive device including a hydraulic motor operated by hydraulic pressure of the construction machine main body mounted on the cover so as to rotate the rotating shaft, and the rotating shaft. A plurality of hammer knife supports having a long hole-shaped mounting bracket mounting hole fixed at a predetermined interval,
A substantially U-shaped or substantially mountain-shaped mounting bracket attached to the mounting bracket mounting hole of the hammer knife support, and a mounting hole in which the mounting bracket to be mounted on each of these mounting brackets is in a loosely inserted state are provided at the base. A mowing adapter comprising a pair of hammer knives formed and bent at both ends in both directions. 3. A connection fitting rotatably mounted in a front-rear and left-right direction on a tip end of a drive arm driven in the vertical and horizontal directions of a construction machine such as a tractor, a power shovel or a backhoe capable of traveling on a road. A cover body having a lower part opened and having the connection fitting mounted substantially at the center upper part, a rotating shaft rotatably mounted in the cover body, and a rotating shaft mounted on the cover body for driving the rotating shaft to rotate. A driving device including a hydraulic motor, a plurality of hammer knife supports having mounting bracket mounting holes fixed at predetermined intervals to the rotating shaft, and substantially hammer knife supports mounted in the mounting bracket mounting holes of these hammer knife supports, respectively. A U-shaped or substantially angled mounting bracket,
A mowing adapter comprising a pair of hammer knives, each having a long hole-shaped mounting hole into which the mounting hardware is inserted, the base being formed in the mounting hardware, and having a tip bent in both directions. . 4. A connection fitting rotatably mounted in a front-rear and left-right direction on a distal end of a drive arm driven in a vertical direction and a left-right direction of a construction machine such as a tractor, a power shovel or a backhoe capable of traveling on a road. A cover body having a lower part opened and having the connection fitting mounted substantially at the center upper part, a rotating shaft rotatably mounted in the cover body, and a rotating shaft mounted on the cover body for driving the rotating shaft to rotate. A driving device having a hydraulic motor, a plurality of hammer knife supports having a long hole-shaped mounting bracket mounting hole fixed to the rotating shaft at a predetermined interval, and a mounting bracket mounting hole of each of the hammer knife supports. The substantially U-shaped or substantially chevron-shaped mounting brackets attached, and the mounting brackets respectively attached to these mounting brackets are in a loosely inserted state. A mowing adapter comprising: a pair of hammer knives having a mounting hole formed in a base portion and a tip portion bent in both sides.