JP2002238322A - Grass collection container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grass collection container smooth in cut grass discharge therefrom and ensuring cut grass to be efficiently packed through utilizing its improved durability and its internal space. SOLUTION: This grass collection container comprises a box-like container body 20 mounted on a traveling machine body 1 so as to be movable between a grass collection position connected to a duct 16 for conveying cut grass and a discharge position separated from the duct 16 and provided with an inlet opening 27 and an outlet opening 28 and a rear lid 21 designed to make the outlet opening 28 openable; wherein the rear lid 21 includes a non-perforated guide face portion 21A disposed at an upper position in a condition of lying at the grass collection position and a perforated face portion 21B designed to be in an air-permeable manner while blocking the passage of cut grass below the portion 21A.

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 grass container used in a mid-mount type or front-mount type mower.

[0002]

2. Description of the Related Art As a grass collection container for collecting cut grass such as grass clippings, an inlet opening is connected to a ventilation duct at a rear end side of a traveling machine body, and substantially the entire body except the inlet side is formed of a mesh. There is conventionally known a grass collection container which is supported by a pair of upper and lower link members and a hydraulic cylinder.
In the configuration configured as described above, the grass collecting container is configured to push up the grass collecting container with the hydraulic cylinder from the grass collecting posture in which the entrance opening is directed to the traveling body side and the grass collecting posture,
By pushing up the swing link to the swing limit of the swing link and thereafter rotating the grass collecting container around the horizontal axis at the upper end on the inlet side, the attitude can be switched to the discharge attitude with the inlet opening downward. I was (See, for example, JP-A-11-893
No. 85)

[0003]

In the grass collecting container having the above-mentioned conventional structure, when the grass is discharged, the grass cutting container is disconnected from the air duct on the traveling body side, and the grass collecting container is disposed around the horizontal axis at the upper end on the entrance side. Since the cut grass is dropped and discharged from the inlet opening by rotating, even if the cut grass is full and the grass collection container becomes heavy, it is possible to discharge the cut grass without the trouble of attaching and detaching the grass collection container. Useful in terms.
In particular, when the cut grass can be discharged while the grass collection container is raised high, the cut grass can be conveniently used when the discharged cut grass is loaded on a transport vehicle and transported to a predetermined location. However, in such a configuration in which the entrance side is changed in the downward direction and the cut grass is discharged from the inlet opening facing downward, it is difficult to discharge the cut grass smoothly. In other words, the grass collection container is one in which the cut grass that has been cut off on the traveling aircraft side is put in the air in a blown state via a blower duct and sent in, but as a blower duct, without reducing the blower speed, and Due to the necessity of passing through a narrow space under the vehicle body, it is not possible to use a passage having a very large passage sectional area. For this reason, the size of the entrance opening formed substantially equal to the diameter of the duct also tends to be smaller than the size of the grass collection container. Therefore, the discharge of the cut grass from the inlet opening is not performed very efficiently. Also, the cut grass fed by the wind blown from the duct tends to intensively collide with the inner surface of the container at a portion facing the opening of the duct, and the following problems occur accordingly. In other words, not only cut grass but also relatively hard objects such as pebbles may be mixed in the scattered objects riding on the wind blowing from the duct, and when these hard objects repeatedly collide, a grass collection container is formed. There is a risk of damaging the reticulated net. The cut grass first begins to adhere and accumulate on the inner surface of the container where the transport wind collides, but generally the transport wind is blown from the lower front to the upper rear. The cut grass that has been sprayed upward at the rear is intensively deposited and deposited on the inner surface of the container above the rear, and is spread by the time it reaches the upper rear, and has fallen on the way. The cut grass that has fallen in the middle of accumulation is accumulated on the lower surface side of the container. In this way, in the grass collecting container, the cut grass is filled with the cut grass sediment growing from the upper rear side and the lower front side. There is a problem that the sediment is difficult to reach, and a void portion is formed here by a bridge phenomenon of the sediment, which becomes a hindrance factor when filling the entire inside of the container with the cut grass. Furthermore, in the case of employing the vertically movable rocking link structure configured as described above, it is effective in that the discharge height can be increased, but the discharge is relatively close to the traveling body. For this reason, there are inconveniences such as difficulty in approaching the transporting carrier and the tendency of the mowing grass to sprinkle on the traveling machine when discharging the mowing grass.

An object of the present invention is to smooth the discharge of cut grass from the grass collection container, improve the durability of the grass collection container, and efficiently fill the cut grass by effectively utilizing the interior space of the grass collection container. It is another object of the present invention to provide a grass collecting container capable of performing the above-mentioned method, and another object of the present invention is to facilitate discharge of cut grass from the grass collecting container.

[0005]

Means for Solving the Problems To achieve the above object, the grass collecting container of the present invention employs the following technical means. [Invention according to claim 1] A grass collecting position connected to a grass transporting duct on the traveling body so as to collect grass harvested by wind from a mower mounted on the traveling body;
A discharging container separated from the duct, and a grass container mounted on the traveling body so as to be freely movable, comprising an entrance opening facing the traveling body side at the grass collecting position and an exit opening facing the opposite side. Box-shaped container body, and a rear lid capable of opening and closing an outlet opening formed in the container main body. The rear lid is a non-porous guide surface provided at an upper portion in a grass collecting position. And a porous surface portion that is configured to be able to ventilate while blocking the passage of cut grass under the portion.

[0006] With the above construction, the grass collecting container is provided with an outlet opening capable of setting the opening size large irrespective of the diameter size of the grass transporting duct on the traveling machine body side, and the grass is cut from the outlet opening. It can be discharged smoothly. Moreover, since the cut grass can be discharged from the outlet opening located on the side opposite to the entrance opening and farther from the traveling machine body, the cut grass discharging position is also a position away from the traveling machine body. The cut grass fed by the wind from the cut grass transfer duct is moved downward to the perforated surface by the non-perforated guide surface portion in the upper half of the rear lid corresponding to the upper portion of the grass container inner space. As the guided wind passes through the perforated surface, the cut grass tends to start to be deposited near the lower rear corner formed by the lower surface of the grass container and the rear lid. Thereafter, the cut grass gradually accumulates toward the center of the container, and it is easy to avoid the problem that the container is not sufficiently filled due to the formation of a void at the lower corner of the rear part of the grass collection container.

According to the second aspect of the present invention, in the grass collecting container according to the first aspect, the non-perforated guide surface portion of the rear lid is in a state where the grass collecting container is at the grass collecting position. The cut grass is positioned at a position facing the duct opening so that the cut grass blown out from the duct side collides with the cut grass, and is formed in a concave curved shape so as to guide the cut grass downward.

As described above, since the non-perforated guide surface portion of the rear cover is formed, not only cut grass but also relatively hard objects such as pebbles are mixed in as scattered objects riding on the wind blown from the duct. Even in the case where the rear cover is formed, since the rear lid is formed of the non-porous guide surface which can be easily formed with high strength, the durability of the grass collection container can be improved.
Moreover, since the non-porous guide surface has a concave curved surface shape, the guide of the cut grass is smooth.

According to a third aspect of the present invention, in the configuration of the first or second aspect, in the grass-collecting position, the entrance opening is in a grass-grass-grasping posture facing the front of the machine body.
In the discharge position, the container position is configured to be freely switchable so that the exit opening is in a grass discharging position in which the outlet opening faces downward. It is configured to open the opening.

[0010] As described above, when the grass posture is switched from the container opening to discharge the cut grass through the outlet opening, the rear lid swings around the rotation fulcrum near the upper part of the outlet opening in the discharging posture to open the outlet. , Smooth discharge of the cut grass is facilitated. That is, the vicinity of the pivot point of the rear lid is constituted by a non-perforated guide surface portion, and the pressure density of the cut grass near this pivot point tends to be lower than that near the lower end of the rear lid far from the pivot point. There is. Therefore, compared with the case where the cut grass sediment is almost uniformly compacted from the lower end to the upper end of the rear lid in the grass collecting container, the imbalance of the compacted density is generated, and the cut grass is formed. The sediment is easy to move inside the grass collection container, and the amount of opening of the rotation fulcrum before opening is large. The pressure density at the lower end of the rear lid tends to be higher and heavier. The mowing grass with high pressure density shifts first, and smooth discharge is performed.

According to a fourth aspect of the present invention, in the configuration of the first to third aspects, the wind guide cover covering the upper portion of the upper surface side of the container body and the upper half of the rear lid are covered. A baffle groove having a cross-sectional shape which is provided with a baffle guide, and is formed in a substantially central position in the left-right direction of the baffle cover on the upper surface side in a front-rear direction and upwardly curved; A ridge groove is formed substantially at the center in the left-right direction in a state following the ridge groove.

As described above, by providing the air guide cover and the air guide with the protruding groove, when the cut grass is accumulated on most of the grass collecting container, the air guide cover and the air guide are connected to the container body. If the air flow from the duct is too large, the exhaust air passage that is discharged to the outside through the gap between the container body and the air guide cover and the air guide is narrowed, and the airflow resistance tends to increase. However, in the present invention, the presence of the protruding groove ensures a passage area between the grass collection container and the wind guide cover and the wind guide, and allows the air flow to be smoothly performed without increasing unnecessary ventilation resistance. It is possible to perform a proper exhaust. In addition, the presence of the ridge grooves for exhausting air is effective in increasing the shape retention strength of the air guide cover and the air guide.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. [Structure of mower] FIG. 1 shows a riding type mid-mount mower which is an example of a mower equipped with a grass collecting container according to the present invention. In this lawn mower, a mower 4 is suspended between a front wheel 2 and a rear wheel 3 of a riding-type traveling body 1 so as to be able to move up and down, and a parallel four-link type link mechanism 5 is provided at the rear of the body. Thus, the grass collection container 6 is connected to be movable up and down.

An engine 7 is mounted on a front portion of the traveling body 1, and power taken out of a front output shaft 8 of the engine 7 is transmitted to a work power disposed below the front portion of the body via a belt transmission 9. The power of the working power take-out shaft 10 is transmitted to the take-out shaft 10 and is transmitted to the mower 4. The belt transmission 9 is provided with a work clutch 11 composed of a tension clutch, and this work clutch 11 is wire-connected to a work clutch lever 13 provided on the right side of the driver's seat 12 in the traveling body 1.
The work clutch lever 13 is "clutch engaged" by a forward operation and "clutch disengaged" by a backward operation.

As shown in FIG. 2, the mower 4 has a structure in which three rotating blades 14 are housed in a deck 15 side by side on the left and right, and two rotating blades 14 on the left side are clockwise. When the right rotating blade 14 is driven counterclockwise, the cutting grass rides on the conveying wind generated by the rotation of the blade, and the outlet 15A is formed near the rear center of the deck 15. And is guided to the grass collection container 6 via a duct 16 provided between the left and right rear wheels 3.

The link mechanism 5 comprises an upper link 17, a lower link 18, and a vertical link 19 connecting the rear ends thereof. Two sets of right and left are connected to an upper part of a support frame 24 fixedly connected to the rear part of the body. Equipped. The lower link of the support frame 24 and the lower link 18
The link mechanism 5 is driven to move up and down in parallel by the expansion and contraction operation of the hydraulic cylinder 25 erected between the two. A guard rod 35 that moves up and down with the expansion and contraction of the hydraulic cylinder 25 is provided in parallel on the rear side of the hydraulic cylinder 25 to prevent the piston rod 25a of the hydraulic cylinder 25 from coming into contact with other objects. And the piston rod 25
a is prevented from being damaged.

At the connection point a between each upper link 17 and the vertical link 19 in the left and right link mechanisms 5, a side plate 26 provided at the rear of the left and right side surfaces of the grass collection container 6 is pivotally connected. Are rotatably supported about the connection point a.

[Weed Collection Container] The grass collection container 6 connected to the link mechanism 5 as described above is provided on the traveling machine 1 side so as to collect the grass cut off from the mower mounted on the traveling machine 1 by wind. And a discharge position separated from the duct 16 to be connected to the grass transporting duct 16. This grass collection container 6
A box-shaped container body 20 having an inlet opening 27 facing the traveling body 1 at the grass collecting position and externally connected to the duct 16 and an outlet opening 28 facing the opposite side;
And a rear lid 21 that can open and close an outlet opening 28 formed at zero.

The container body 20 is a box-shaped container body 20.
And a container main body frame 60 that constitutes an outer shell of the container main body 2 so as to block the passage of cut grass in a state where ventilation is possible.
And a porous face plate 61 made of a metal mesh or punched metal provided on the left and right side surfaces and the upper surface. The container main body frame 60 includes a metal front-rear direction frame portion 60a configured to have an L-shaped cross section such that frame portions along the up-down and left-right front-rear directions form a ridgeline portion of a box-shaped container outer edge, and a box-shaped A portion corresponding to the rectangular side surface of the container body 20, comprising a reinforcing diagonal member portion 60 b extending from the upper corner at the front side to the lower corner at the diagonal position on the same side at a diagonal position. A forward frame 63 forming a front surface having the inlet opening 27 of the container body 20 at the front side of the peripheral frame 62 and a metal bottom plate 64 closing the lower surface side of the container are formed by bolts and nuts. It is configured integrally by detachable connection by welding or by welding and fixing. On the inner surface side of the container body frame 60 thus configured, the porous face plate 61 is provided with bolts
It is detachably mounted using connecting means such as nuts. The rear end surface of the container main body 20 is entirely open, and is configured such that the rear end surface can be freely opened and closed by the rear lid 21 that can swing around the fulcrum b. In addition, grass collection container 6
Is covered with a synthetic resin air guide cover 22,
It is configured to guide the grass transport wind coming out of the ventilation part of the porous face plate 61 on the upper surface of the container to the rear to prevent the grass from scattering around.

At the rear of the container main body frame 60 of the grass collecting container 6, the upper and lower side plates 26 are integrally connected and fixed over the upper and lower longitudinal frame portions 60a. A hydraulic cylinder 30 is erected between the bracket 26a extending from the upper and lower side plates 26 and the upper extending end of the vertical link 19 in the link mechanism 5, and the hydraulic cylinder 30 is shortened so that a grass collecting container is provided. 6 is in the grass-collecting position along the front-rear direction with the inlet opening 27 in front, and the hydraulic cylinder 30 is extended, so that the grass-collecting container 6 is turned to the discharging position with the outlet opening 28 facing downward. (Dump). That is, the tip of the support arm 21a integrally extended from the rear lid 21 is connected to a bracket 26b extended from the side plate 26 of the grass collecting container 6 so as to be rotatable around the fulcrum b. A link 31 is provided between the intermediate portion of the arm 21b and the support 19a projecting from the vertical link 19, as shown in FIG.
When the grass collecting container 6 is in the grass collecting posture along the front-rear direction, the rear lid 21 is in the closed posture, and as shown in FIG. 4, when the grass collecting container 6 is turned to the discharging posture, the fulcrum b moves. As a result, the link 31 is relatively pushed up, and the rear lid 21 is
Is released.

The rear lid 21 has a non-perforated guide surface portion 21A provided at an upper portion facing the duct 16 in a state where the grass collection container 6 is at the grass collection position, and prevents the passage of cut grass under the same. A porous surface portion 21 with a punched metal or metal mesh only in the lower half so as to allow ventilation.
As shown in FIG. 6, the cut grass is blown out of the duct 16 into the container so as to form a concave curved surface on the inner surface of the upper half of the rear cover 21. It is received by the non-porous guide surface portion 21A and guided downward,
The transport air is discharged from the porous surface portion 21B provided in the lower half. When the container is in a closed state, the air guide cover 2 is located on the upper rear side of the rear lid 21.
A synthetic resin wind guide 23 for guiding the grass transfer wind guided rearward in 2 downward is integrally provided, and automatically linked with the rear lid 21 in conjunction with the rotation of the grass collection container 6. It is configured to operate.

The wind guide cover 22 and the wind guide 23
As shown in FIGS. 5 and 6, a ridge groove 22 a having a cross-sectional shape protruding upward along the front-rear direction and upward is formed substantially at the center of the air guide cover 22 in the left-right direction. At the substantially center position of the guide 23 in the left-right direction, the ridge groove 2
The protrusion groove 23 having a similar cross section whose front end side overlaps the outside of the protrusion groove 22a so as to form a passage following 2a.
a is formed. The ridge groove 22a and the ridge groove 23a
When the cut grass accumulates in a large part of the grass collecting container 6 due to the presence of the air, and the distance between the upper surface of the cut grass accumulation portion and the inner surface of the wind guide cover 22 becomes narrow, the exhaust air from the duct 16 is exhausted. Passes through the passage formed between the upper surface of the container body 20 and the ridge grooves 22a and the ridge grooves 23a, without causing a significant increase in the ventilation resistance until the cut grass is almost full in the grass collection container 6. Will be discharged.

[Other Embodiments] Next, other embodiments of the present invention will be listed. [1] The mower to which the grass container is applied is not limited to the mid-mount type mower described in the embodiment, but may be a front-mount type mower. [2] The opening of the outlet opening 13 after being turned to the lifting and discharging position is not limited to being opened by the driving force at the same time as the turning, and the outlet is opened by an artificial operation irrespective of the turning. The operation may be performed by an operation of locking the opening of the opening 13 and an operation of releasing the lock. [3] The porous face plate is not limited to a metal plate having a required strength, but may be a synthetic resin plate shape. To change the aperture diameter of the porous surface, remove the porous face plate. Not only replacement with a perforated face plate having another opening hole size, but also changing the opening hole size by mounting a plate material having a smaller opening hole size on a perforated face plate having a larger opening hole size may be performed. . [4] The reinforcing diagonal portion is, as shown in the embodiment,
It is not limited to the one that extends diagonally from the upper front corner of the grass collection container to the lower rear corner that is diagonally located on the same side, but is diagonally located on the same side from the lower front corner Brace-like extension towards the upper rear corner, or
An appropriate configuration can be adopted, such as extending in a brace shape from the front upper and lower corners to the rear upper and lower corners of the diagonal position. [5] The porous surface portion formed on the rear lid may have a small hole formed below the metal plate that forms the non-perforated guide surface portion of the rear lid, but may constitute the non-perforated guide surface portion of the rear lid. The metal plate may be a punching plate formed separately from the metal plate, or a net may be configured to be detachable.

[0024]

According to the first aspect of the present invention,
There is no restriction on the setting of the opening size compared to the inlet opening, and the grass can be discharged smoothly using the outlet opening that can set the opening size larger than the inlet opening, and at the same time as the truck bed and platform etc. Also, there is an advantage that the grass is easily discharged well even at a high position slightly away from the aircraft. Then, the cut grass fed by the wind from the cut grass transfer duct is received by the non-perforated guide surface portion in the upper half of the rear lid corresponding to the upper portion of the internal space of the grass collection container, and is received by the lower porous surface. The cut grass is guided to the side, and the cut grass starts to be deposited near the lower rear corner composed of the bottom of the grass collection container and the rear lid. It is possible to avoid the deterioration of the durability of the container, and to avoid the problem of insufficient filling of the container due to the formation of a gap at the lower corner of the rear part of the grass collection container, and effectively use the space inside the container. There is an effect that the harvested grass can be stored.

According to a second aspect of the present invention, a non-perforated guide surface portion, which can be easily formed with high strength, is formed in the upper half of the rear lid opposite to the cut grass conveying duct. As a scattered object that rides on the transport wind blown out from, not only cut grass, even if relatively hard objects such as pebbles are mixed, avoid wear due to contact with these,
The durability of the grass collection container can be improved. Moreover, since the non-perforated guide surface has a concave curved shape, there is an advantage that the cut grass can be smoothly guided.

According to a third aspect of the present invention, the rear lid swings around a pivot point near the upper portion of the outlet opening to open the outlet in the discharging position, so that the cut grass is collected in the grass collecting container. Compared with the case where the sediment of the rear cover is almost uniformly compacted from the lower end to the upper end of the rear lid, the imbalance of the consolidation density has caused the sediment of the cut grass to move inside the grass collection container. Due to the tendency that the pressure density at the lower end of the rear lid tends to be higher and heavier, the mowing part with the higher pressure density at the lower end is The grass moves smoothly, and the grass is easily discharged.

According to the fourth aspect of the present invention, by providing the air guide cover and the air guide with the protruding groove, even when the cut grass is accumulated in a large part of the grass collection container, the grass collection container and the wind guide are provided. The passage area between the cover and the air guide is ensured, and the smooth exhaust can be performed without increasing unnecessary airflow resistance. In addition, the presence of the ridge grooves for exhausting air is effective in increasing the shape retention strength of the air guide cover and the air guide.

[Brief description of the drawings]

FIG. 1 is an overall side view of a mower equipped with a grass collecting container according to the present invention.

FIG. 2 is a plan view of a mower.

FIG. 3 is a side view of a grass collection container in a grass collection position.

FIG. 4 is a side view showing an operation of changing the position of the grass container.

FIG. 5 is a perspective view showing a disassembled state of the grass collection container.

FIG. 6 is a schematic cross-sectional view showing a ventilation state of the grass collection container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running body 4 Mower 5 Link mechanism 6 Grass collecting container 16 Duct 20 Container main body 21 Rear lid 21A Guide surface portion 21B Porous surface portion 22 Wind guide cover 23 Wind guide 26 Mounting plate 27 Inlet opening 28 Exit opening

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Toyama 64 Ishizu-Kitacho, Sakai-shi, Osaka F-term in Kubota Sakai Works (reference) 2B083 AA02 BA12 BA18 CA13 FA06 FA09 FA14 FA16 FA18

Claims (4)

[Claims] 1. A grass collection position connected to a grass transporting duct on the traveling body so as to collect grass harvested by wind from a mower mounted on the traveling body, and a discharge separated from the duct. A grass container mounted on the traveling body so as to be freely movable at a position, wherein the box-shaped container has an entrance opening facing the traveling body side at the grass collection position and an exit opening facing the opposite side. It comprises a main body and a rear lid capable of opening and closing an outlet opening formed in the container main body. The rear lid has a non-perforated guide surface portion provided at an upper position in a grass collecting position and a lower portion thereof. And a porous surface portion configured to be able to ventilate while preventing the passage of cut grass. 2. The non-perforated guide surface portion of the rear lid is located at a location facing the duct opening so that the cut grass blown out from the duct side collides with the grass in the grass collection position. 2. The grass collecting container according to claim 1, wherein the grass collecting container is formed in a concave curved shape so as to be guided downward. 3. The grass attitude is such that the inlet opening is in a grass-grassing attitude in which the entrance opening is directed forward of the fuselage, and in the discharge position, the grass opening is in a grass-discharging attitude in which the outlet opening faces downward. The grass container according to claim 1 or 2, wherein the rear lid is configured to swing around a pivot point near an upper portion of the outlet opening in the discharging position to open the outlet opening. 4. A wind guide cover that covers the upper side of the upper surface of the container body, and a wind guide that covers the upper half of the rear lid, and is located substantially at the center in the left-right direction of the wind guide cover on the upper surface. The ridge groove is formed along the front-rear direction, and has a cross-sectional shape that is convex upward, and also at a substantially central position in the left-right direction of the air guide, the ridge groove is continued from the ridge groove. The grass collection container according to claim 1, wherein the grass collection container is formed.