JPH06303824A - Grass mower - Google Patents

Abstract

PURPOSE:To provide a grass mower capable of efficiently and safely performing grass-mowing work on a slope, etc. CONSTITUTION:A mower 2 and a grass collecting bag 3 are attached to a mobile machine body 1. The grass collecting bag 3 has a mowed grass casting port 10 at an end and a closing means to close the mowed grass casting port 10 and is attached to the mobile machine body 1 in a state of expanding the mowed grass casting port 10. The grass collecting bag 3 is made to be freely exchangeable with a reserve grass collecting bag 3 loaded on the mobile machine body 1 in folded state. A feeding duct 4 to feed the grass mowed with the mower 2 and dust into the grass collecting bag 3 with an air flow is extended between the mower 2 and the grass collecting bag 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lawnmower used for lawn mowing or mowing in a work area where it is difficult to work with a large mowing machine such as a sloping ground in a golf course.

[0002]

2. Description of the Related Art Conventionally, mowers and collecting containers have been used as lawnmowers for lawn mowing and mowing in golf courses and parks.
In addition, a mower equipped with a feeding duct that feeds grass and dust cut by a mower onto the flow of air and feeds it into the grass container is used. There are those disclosed in Japanese Patent No. 6737, Japanese Utility Model Publication No. 3-38996, and the like.

Here, as a grass collection container, the actual fair 3-3
There are a hopper as disclosed in Japanese Patent No. 8996 and a flexible grass collecting bag. A mower equipped with a hopper is generally large and is used in a relatively flat and large work area, for example, lawn mowing on a fairway of a golf course. On the other hand, a mowing machine equipped with a grass bag is generally small and is used for mowing on a sloped land where a large mowing machine cannot enter in a park or a golf course.

[0004]

When mowing a sloping ground of a golf course using a small mowing machine equipped with a grass bag, when the grass bag is full of grass, the grass is discarded. You have to drive the mower,
It takes a long time to make a round trip between the place where the grass is disposed of and the work site, and the efficiency of the grass cutting is reduced. In particular, when the place where the grass is disposed of is away from the work site, the efficiency of the grass cutting is significantly reduced.

Therefore, in order to reduce the number of round trips between the place where the grass is disposed of and the working area and to improve the efficiency of the grass cutting work, the size of the grass collecting bag should be increased to collect a large amount of grass. Can be considered. However, when cutting grass on a sloping ground or the like, if the weight of the grass bag becomes large due to a large amount of grass being collected, the balance of the mower becomes unbalanced, and a risk of a fall accident occurs.

[0006]

SUMMARY OF THE INVENTION The present invention provides a grass bag having a mower attached to a traveling vehicle body, a grass-cutting opening into which a grass is inserted, and a closing means for closing the grass-cutting opening. It is attached to the running car body with the grass cutting opening widened, and the grass bag is provided exchangeably with a spare grass bag that is mounted on the running car body in a folded state. A feeding duct for placing the taken grass and dust on the air flow to feed the grass into the grass bag is provided between the mower and the grass bag.

[0007]

In the present invention, grass and dust cut by mowers are fed in the feeding duct and collected in the grass bag.
When the amount of grass cut in the grass bag reaches a certain amount,
Closing the grass cutting opening with the closing means, lower the grass collection bag from the mower and leave it in the work area, and attach a spare grass collection bag with the grass cutting opening widened to continue mowing work. . When the amount of grass cut in the grass collection bag reaches a certain amount, the grass cutting bag is closed by the closing means, the grass collection bag is removed from the working machine, and the spare grass collection bag is attached again. And continue the mowing work. The grass bag left in the work area will be collected later.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, in FIG. 1, a mower 2 and a pair of left and right grass-collecting bags 3 are attached to a traveling vehicle body 1. Further, grass and dust cut by the mower 2 are placed on the air flow and fed to the grass-collecting bag 3 side. FIG. 2 is a side view showing the overall structure of a mower in which the feeding duct 4 is disposed between the mower 2 and the grass bag 3, FIG. 2 is a plan view thereof, and FIG. 3 is a rear view thereof.

Here, the mower 2 is attached to the lower abdomen between the front wheel 5 and the rear wheel 6 of the traveling vehicle body 1. The mower 2 has three cutting blades for cutting grass such as grass. 7 is rotatably provided, and a blower 8 for generating a flow of air for feeding the grass cut by the mower 2 through the feeding duct 4 is attached. Power is transmitted to the cutting blade 7 and the blower 8 from an engine (not shown) of the traveling vehicle body 1 via a mower drive shaft 9 and the like.

Next, a mounting structure of the grass bag 3 will be described. First, at one end of the grass bag 3 is a grass cutting port 1
0 is formed, and four cutting holes 11 are formed in the peripheral portion of the grass cutting port 10. Further, the grass bag 3
A fastener (not shown) which is a closing means for closing the grass cutting inlet 10 is attached to the. On the other hand, a pair of left and right side plates 12a and a front plate 12 are provided at the rear of the traveling vehicle body 1.
An outer case 12 formed by b and the top plate 12c is attached. A pair of support rods 13 and 14 extending inward are fixed to the left and right side plates 12a, and the support rods 13 and 14 are folded in a state in which the grass cutting port 10 is closed. A plurality of grass collection bags 3
The eyelet hole 11 is locked. Further, a central support rod 15 extending rearward is fixed to the central portion of the front plate 12b in the left-right direction, and a fixed type support projection 16 and a pin 17 are used as fulcrums in the front-back direction. And a support protrusion 18 that is rotatable. The support protrusion 18 is biased by a spring 19 in a direction of rotating rearward, which is a direction in which the support protrusion 18 is separated from the support protrusion 16.

Then, by locking the four fitting holes 11 to the support rods 13 and 14, the innermost one of the grass collecting bags 3 supported by the support rods 13 and 14 in a folded state. The pair of grass collection bags 3 located maintains the state where the pair of fitting holes 11 are locked to the support rods 13 and 14, and locks the other pair of fitting holes 11 to the support protrusions 16 and 18. As a result, as shown in FIG. 4, the grass cutting inlet 10 is mounted in a state where the grass cutting opening 10 is expanded into a substantially quadrangular shape so that the grass can be collected. In addition, the grass collection bags 3 other than the pair of grass collection bags 3 in which the grass cutting inlet 10 is expanded into a substantially rectangular shape are supported by the support rods 13 and 14 in a state of being folded as the auxiliary grass collection bag 3. Has been done.

Here, the grass bag 3 is the support rod 1
The dimension between the eyelet holes 11 that are locked in 3, 4 is set to "L", and the dimension from the eyelet hole 11 to the end of the grass bag 3 in the folded state is "L / It is set to 2 ". Therefore, the grass cutting port 10 of this grass collecting bag 3
When the blade is expanded, the grass cutting inlet 10 becomes a substantially quadrangular shape with four sides having substantially the same length. Then, in the pair of grass collection bags 3 in which the grass cutting inlet 10 is widened, one side of the grass cutting inlet 10 in which the fitting holes 11 are locked by the support projections 16 and 18 overlap as an adjacent side 20. On the other hand, the support protrusion 18 is biased by the spring 19 so as to rotate in a direction away from the support protrusion 16, so that the adjacent side 20 that locks the eyelet hole 11 to the support protrusions 16 and 18 is not loosened. A slack prevention mechanism 21 for preventing the slack of the adjacent side 20 is formed by the support projections 16 and 18 and the spring 19.

Further, a pair of trays 22 for supporting the bottom of the grass bag 3 mounted in a state where the grass cutting opening 10 is expanded in a substantially square shape is attached to the rear portion of the traveling vehicle body 1. ing. These trays 22 are the front plate 1
It is attached in a state of extending rearward from the lower end of 2b, and the attaching portion to the front plate 12b is vertically rotatable by a support shaft 23 having a substantially horizontal axis as shown in FIG. It is supported. Further, a stopper 24 is provided for restricting downward rotation of the rear side of the tray 22 from a substantially horizontal state.

Next, a cyclone type separator 25 for separating the grass and dust fed in the feeding duct 4 from the air is attached to the upper surface plate 12c, and this cyclone type separator 25 is attached. One end of the feeding duct 4 is connected to the upper part of the. The cyclone separator 25 is provided with a cut grass discharge port 26 for discharging the separated cut grass and dust toward the grass collection bag 3, and the cut grass discharge port 26 discharges the cut grass and dust. A dispersion ring 27 is installed to disperse the discharge direction. In addition,
The dispersion ring 27 is formed by rolling a flat plate into a ring shape and has a notch 28 in a part thereof. Further, the dispersion ring 27 is rotated so that the notch 28 can be oriented in any direction. It is movably attached. A space 29 having a predetermined size is provided between the lower end of the dispersion ring 27 and the grass cutting port 10.

In such a structure, when the mower is run while driving the mower 2 and the blower 8 in the work ground (eg, golf course), the mower 2 cuts grass such as grass and is cut by the mower 2. The cut grass is fed along the air flow generated by the blower 8 toward the grass bag 3 in the feed duct 4.

Here, dust is sucked into the feeding duct 4 together with the cutting grass, and the cutting grass and the dust fed in the feeding duct 4 are separated from one end of the feeding duct 4 by the cyclone separator 2.
It is discharged into 5. Then, the grass and dust discharged into the cyclone separator 25 fall while swirling in the cyclone separator 25, and in the process of falling while swirling, the grass and dust are separated by the cyclone type by the action of centrifugal force. The air that has moved to the outer peripheral side of the container 25 and from which the grass and dust have been separated is discharged into the atmosphere from the cylindrical air outlet 30 provided in the center of the cyclone separator 25, and the grass and dust are cut. The grass is discharged from the discharge port 26 and collected in the grass bag 3.

Therefore, during the mowing work by the mowing machine, the air containing dust is not discharged to the atmosphere and blows up the dust, and the mowing work is performed in a good working environment in which the dust does not fly up. I can do it. Moreover, since the flow of the air generated by the blower 8 is sufficiently strong at one end of the feeding duct 4 to which the cyclone separator 25 is connected, the cutting grass and dust are separated from the air satisfactorily.

Next, the cyclone-type separator 25 is in a state where cut grass and dust fall directly below if a sufficient height dimension is secured. From the viewpoint that it is better to discharge diagonally downward in order to disperse the grass in the grass bag 3 and collect the grass, the height of the cone portion of the cyclone separator 25 is set to be small, and the cyclone separator 25 is discharged from the cut grass discharge port 26. Cut grass and dust are discharged diagonally downward. However, by rotating the dispersion ring 27 attached to the cut grass outlet 26 to adjust the position of the notch 28, the dispersion ring 27 collides with the dispersion ring 27 after being discharged from the cut grass outlet 26 as shown in FIG. Notch 28
It is divided into cutting grass that bounces to the side and cutting grass that is discharged as it is without colliding with the dispersion ring 27. Therefore, the discharging direction of the cutting grass and dust is dispersed and the grass is collected evenly in the two grass bags 3.

On the other hand, in the grass-collecting bag 3 in which the grass-cutting-in port 10 is widened so as to be able to collect grass, the eyelet holes 11 provided on the adjacent side 20 of the grass-cutting-in port 10 have the supporting projections. 16 and 18, and one support protrusion 18
Is urged by the spring 19 to support the other support protrusion 16
It is rotating in the direction away from. Therefore, the adjacent side 2
0 is in a pulled state and does not cause slack, and
It is prevented that a gap is generated between the two grass collecting bags 3 due to the slack of the adjacent side 20. Then, the grass and dust discharged from the grass cutting outlet 26 of the cyclone separator 25 after being fed by the feeding duct 4 are prevented from falling from between the two grass collecting bags 3, and the grass collecting is performed. The grass is surely collected in the bag 3. Therefore, it is not necessary to sweep the falling grass after the grass cutting work is completed.

When the grass bag 3 is full of grass,
Work is performed by removing the fastening holes 11 of the grass collection bag 3 from the support rods 13 and 14 and the support protrusions 16 and 18 and closing the fasteners provided in the grass cutting port 10 and lowering the grass collection bag 3 from the mower. Leave it in the ground. And the support rods 13, 1
A state in which the pair of fitting holes 11 of the grass collecting bag 3 which is to be positioned on the innermost side among the auxiliary grass collecting bags 3 supported by being folded in 4 are locked to the support rods 13 and 14. And the other pair of dowel holes 11 are supported by the supporting projections 16 and 18
By locking the grass cutting bag 3 into the substantially square shape, the grass cutting operation is continued by continuing the grass cutting operation. Therefore, when the grass collecting bag 3 is full of grass, it is not necessary to reciprocate between the place where the grass is discarded and the work site, and the efficiency of the grass cutting operation is significantly improved. Also,
By removing the grass bag 3 and replacing it with a spare grass bag 3 when the amount of grass cut in the grass bag 3 reaches a certain amount before the grass grass is full, the weight of the grass cut by the grass mower can be changed. It is possible to prevent the balance from being lost, and it is possible to perform the mowing work safely even on a sloping land while preventing the occurrence of a fall accident of the mowing machine. Since the space 29 is provided between the lower end of the dispersion ring 27 and the grass cutting inlet 10, the work of closing the fastener and the work of lowering the grass collecting bag 3 from the mowing machine can be easily performed. In addition, the grass collection bag 3 that has been unloaded from the mower and left in the work area is collected later by running a dedicated collection vehicle.

Next, since the bottom of the grass bag 3 which is mounted in a state where grass can be collected by expanding the grass cutting port 10 is supported by the tray 22, grass is collected in the grass bag 3. Most of the weight of the grass is applied to the saucer 22. For this reason,
The weight of the collected grass does not cause the grass bag 3 to be torn, and the grass bag 3 may be formed of an inexpensive material having low strength, so that the cost of the grass bag 3 can be reduced. it can. Furthermore, when closing the fastener of the grass cutting inlet 10, the bottom of the grass bag 3 is supported by the tray 22, so that the fastener can be easily closed.

Further, since the tray 22 is mounted so as to be vertically rotatable about the support shaft 23 as a fulcrum, the tray 22 is provided when the mower moves from a flat ground to a sloping ground or from a sloping ground to a flat ground. If the rear end of the
As shown in FIG. 6, the rear side of 2 rotates upward with the support shaft 23 as a fulcrum. Therefore, the tray 22 whose rear end is grounded
This prevents damage to the ground or lawn, and also prevents damage to the tray 22. The tray 22 is attached by a support shaft 23 so as to be vertically rotatable.
Since the stopper 24 regulates the downward movement of the rear portion of the tray 22 from the substantially horizontal state, the bottom portion of the grass bag 3 is reliably supported by the tray 22.

In this embodiment, the case where the mowing machine is used for the mowing work has been described as an example, but the mowing machine can also be used for collecting the fallen leaves. In addition, in this embodiment, the auxiliary rod 1 is mounted on the traveling vehicle body 1 by mounting the auxiliary grass collecting bag 3.
Although a case has been described as an example in which the operation is performed by using Nos. 3 and 14, an accommodation space may be provided and accommodated in the accommodation space. Further, although the fastener has been described as an example of the closing means for closing the grass cutting opening, a string or a hook may be used as the closing means.

[0024]

As described above, according to the present invention, a mower is attached to a traveling vehicle body, and a grass collecting bag is provided at one end thereof, which has a grass-cutting opening into which grass is inserted and a closing means for closing the grass-cutting opening. Attached to the running car body with the opening widened,
This grass collection bag is provided so that it can be exchanged with the spare grass collection bag that is mounted on the vehicle body when it is folded, and the grass and dust cut by the mower is placed in the air flow and fed into the grass collection bag. Since the feeding duct to be arranged is arranged between the mower and the grass bag, when the amount of grass cut in the grass bag reaches a certain amount, the grass cutting port is closed by the closing means. The grass bag can be removed from the mower and left in the work area, and a spare grass bag can be attached with the grass cutting opening widened to continue the mowing operation. There is no need to go back and forth between the place where the grass weeds are disposed of and the work site, and the work efficiency can be improved, and when the amount of grass cut in the grass collection bag reaches a certain amount, To remove the grass from the mowing machine and install a new spare grass bag, It is possible to prevent the mower from becoming unbalanced due to the weight of the mower, and therefore to prevent the accident of falling of the mower even in mowing work on sloping ground, etc. to ensure work safety. It has the effect of being able to.

[Brief description of drawings]

FIG. 1 is a side view showing the overall structure of a mower according to an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is an enlarged perspective view showing an attached state of the grass bag.

FIG. 5 is an enlarged perspective view showing a mounting state of a tray.

FIG. 6 is a side view showing a state in which a saucer whose rear end is grounded is rotated upward around a spindle when the mowing machine moves from a flat ground to a slope ground.

FIG. 7 is a front view showing a dispersed state of grass and the like by a dispersion ring.

FIG. 8 is an enlarged perspective view of a dispersion ring.

[Explanation of symbols]

 1 Running vehicle 2 Mower 3 Grass bag 4 Feed duct 10 Mowing grass inlet

Claims (1)

[Claims] 1. A grass bag provided with a mower attached to a traveling vehicle body and having a grass-cutting opening at one end for cutting grass and having a closing means for closing the grass-cutting opening, the grass-cutting opening is expanded. Mounted on the traveling car body in this state, the grass bag is provided exchangeably with a spare grass bag that is mounted on the traveling car body in a folded state, and the grass and dust cut by the mower are removed from the air. A lawn mower, characterized in that a feeding duct for feeding the flow into the grass collecting bag is arranged between the mower and the grass collecting bag.