JP3527191B2 - Riding mower - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling machine body having a driver's seat, a mower for mowing provided on the lower part of the traveling machine body, and a plurality of upper parts provided on the rear part of the traveling machine body. A grass cutting container having a ventilation hole and having a large number of lateral ventilation holes on each of the left and right lateral portions thereof, and a cutting grass for connecting the mower and a storage opening provided at the front portion of the grass collection container. And a guide body, which is configured to convey the grass cut by the mower along the cut grass guide body by wind force to collect the grass in the grass collecting container.

[0002]

2. Description of the Related Art In a riding-type mower having such a structure,
Wind force is indispensable for transporting the grass cut by the mower and collecting it in the grass collection container.To discharge the wind outside the grass collection container and collect only the grass efficiently, It is necessary to provide a large number of ventilation holes in at least the upper part and the left and right lateral parts over a large area. However, fine grass and dust are also discharged from the ventilation hole, so that the discharged grass and dust may soar upward depending on the direction of the wind and may fall on the driver. Therefore, in the past, an upper cover was provided on the upper part of the grass collection container so that the wind from the upper ventilation hole of the grass collection container was guided to the rear of the grass collection container and discharged, whereby fine grass cutting was performed. It prevented the dust, dust, etc. from flying up and falling on the driver.

[0003]

However, depending on the wind direction, fine grass and dust discharged from the lateral ventilation holes provided on the left and right lateral portions of the grass collection container may fly upwards. Since no special consideration was given to the occurrence of such a situation, depending on the wind direction, fine grass and dust may fall on the driver, and in particular, in order to improve the grass collection efficiency for the grass collection container, This was remarkable when the lateral ventilation holes were provided above both the left and right lateral parts of the grass collection container.

The present invention focuses on such a conventional problem, and an object thereof is to provide a lateral ventilation hole even above the left and right lateral parts of the grass container in order to improve the grass collecting efficiency. Even when provided, it is an object of the present invention to provide a riding-type mower capable of preventing fine grass and dust discharged from the lateral ventilation holes from falling on the driver.

[0005]

The structure, operation and effect of the invention according to claim 1 are as follows.

[Configuration] The invention according to claim 1 is a traveling machine body having a driver's seat,
A mower for mowing provided at the bottom of the traveling aircraft,
A grass collection container provided at the rear of the traveling machine body, having a plurality of upper ventilation holes in the upper part thereof, and having a plurality of lateral ventilation holes on each of the left and right lateral portions thereof, the mower and the collecting container. A grass cutting guide body that connects to a storage opening provided in the front part of the grass container is provided, and the grass mowed by the mower is conveyed by wind force along the grass cutting guide body to collect grass in the grass collection container. A riding-type mower configured as described above, wherein the upper cover provided on the upper part of the grass container is
It is provided so as to cover the upper ventilation hole from one side and is configured to guide and discharge the wind from the upper ventilation hole to the rear of the grass collection container, and is provided on both left and right lateral portions of the grass collection container. Each of the lateral cover covers from the right and left lateral portions to the lateral vent holes.
It is installed so that the wind from the lateral ventilation holes is guided to the rear and the lower part of the grass container , so that it can be positioned behind and below the lateral cover.
Characterized in that it is configured to al discharged.

[Operation] According to the first aspect of the invention, the upper cover provided on the upper part of the grass container covers the upper ventilation hole from above.
Provided with, which is configured to discharge and guide the wind from a number of upper ventilation holes provided in the upper portion of the grass catcher to the rear of the grass catcher, as in the conventional riding mower It is possible to prevent fine grass and dust discharged from the upper ventilation holes from soaring upward, and prevent fine grass and dust discharged from the upper ventilation holes from falling on the driver. In addition to that, the horizontal cover provided on each of the left and right lateral parts of the grass collection container is attached to the lateral part from the right and left lateral parts.
Is provided so as to cover the partial ventilation holes, and guides the wind from the multiple lateral ventilation holes provided on each of the left and right lateral portions of the grass container to the rear and lower sides of the grass container to cover the lateral portion. Behind and
Since it is configured to discharge from below, even the fine grass and dust discharged from the horizontal ventilation holes are discharged to the rear and downward of the grass container by each horizontal cover and are prevented from rising upwards. , Even for improving grass collection efficiency,
Even when the lateral ventilation holes are provided above the left and right lateral portions of the grass collection container, it is possible to prevent fine grass and dust from the lateral ventilation holes from falling on the driver.

[Effect] Therefore, while improving the efficiency of grass collection for the grass container, it is possible to prevent fine grass and dust from falling on the driver.

The structure, operation, and effect of the invention according to claim 2 are as follows.

[Structure] In the invention according to claim 2, the upper cover bulges upward in an intermediate portion in the left-right direction in order to guide the air from the upper ventilation hole and discharge the air rearward, and A lateral bulging portion, which is formed by dividing the upper cover into two halves along the front-back direction at an intermediate portion in the left-right direction of the guiding bulging portion. It is characterized by being formed by a cover.

[Operation] According to the second aspect of the invention, the upper cover bulges upward to the middle portion in the left-right direction in order to guide the air from the upper ventilation hole and discharge the air rearward, and Since the guide bulging portion is provided along the front-rear direction, even fine grass and dust from the upper ventilation hole are reliably guided and discharged rearward by the guide bulging portion. Since each of the lateral covers is formed of a split cover formed by dividing the upper cover into two along the front-rear direction at the left-right intermediate portion of the guide bulging portion, Fine grass cuttings and dust are reliably guided backwards and downwards by the divided guide bulges and discharged, and, for example, the upper cover and the lateral cover are molded with synthetic resin. In the case of the above, or in the case of a molded product made of sheet metal, only one molding die or the like is required, and the cost of the upper cover and the lateral cover can be reduced.

[Effect] Therefore, the upper cover prevents fine grass and dust from flying up from the upper ventilation hole, and the horizontal covers prevent fine grass and dust from flying up from the horizontal ventilation hole. In addition, the upper cover and the left and right lateral covers can be manufactured at low cost.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a riding type mower according to the present invention will be described with reference to the drawings. As shown in FIG. 1, this riding-type mower includes a traveling machine body 3 having a pair of left and right front wheels 1 and rear wheels 2. An engine 4 is mounted in front of the traveling machine body 3 and in the rear thereof, A driver's seat 5 on which a driver sits is provided. A mower 6 for mowing grass for cutting various kinds of grass such as turf is located below the middle of the traveling machine body 3 in the front-rear direction, and is vertically moved with respect to the traveling machine body 3 via a mower lifting link mechanism 7. The grass container 8 is positioned so that it can be lifted and lowered, and a grass container 8 is located at the rear of the traveling machine body 3 and is vertically movable with respect to the traveling machine body 3 via a container lifting link mechanism 9.
The grass collection container 8 and the grass collection container 8 are connected to each other by a duct 10 as a grass cutting guide.

As shown in FIG. 2, the mower 6 includes three blades 11 arranged side by side in the left-right direction, and a housing 12 for holding the blades 11 rotatably around the longitudinal axis.
Etc., the power from the engine 4 is transmitted to each blade 11 via the belt type transmission mechanism 13, the transmission shaft 14, etc., and is located on the left side and the center in a plan view as indicated by an arrow in the figure. The blade 11 is rotationally driven in the clockwise direction, and the blade on the right side is rotationally driven in the counterclockwise direction. The housing 12 is provided with a vacuum plate 15 along the rotation trajectory of each blade 11, and a vertical wall 12a of the housing 12 is located so as to face the vacuum plate 15, and is cut by each blade 11. The cut grass is discharged toward the discharge tube 16, and the duct 10 as the cut grass guide is connected to the discharge tube 16 in a state that allows the mower 6 to move up and down.

The duct 10 is formed in a U-shaped cross-section with an opening at the bottom, and is extended to the rear side of the traveling machine body 3,
The rear end of the grass is inserted into a storage opening 17 (see FIGS. 3 and 4) provided on the front surface 8a of the grass container 8 so that the grass can be cut by the blade 11 of the mower 6 and cut by the blade 11. Is configured to be conveyed backward along the duct 10 and to be collected in the grass container 8 by the wind force generated by the rotation of the grass. A large number of ventilation holes are provided for discharging the grass container 8 to the outside. That is, the grass container 8 is shown in FIG.
As shown in FIG. 4 and FIG. 4, the sheet metal has a substantially rectangular box shape and is formed of sheet metal, and the front surface 8a thereof has a storage opening 17, and the rear surface is open, and the opened rear surface is closed. A lid 18 made of a material is rotatably attached to the grass container 8 as described later in detail.

A storage port 1 is provided on the front surface 8a of the grass container 8.
Openings are provided so as to be located on both sides of the punching metal 7, and punching metals 19 are stretched on the both openings, and a large number of holes provided in the punching metal 19 function as front ventilation holes 19a. Is configured to. Similarly, the upper surface 8b of the grass container 8 is provided with punching metal 20 for forming a large number of upper ventilation holes 20a over almost the entire surface, and the left and right lateral surfaces 8c of the grass container 8 are provided with one rear surface. Punching metal 21 for forming a large number of lateral ventilation holes 21a is stretched over almost the entire surface except the portions. Further, a punching metal 22 for forming a large number of rear ventilation holes 22a is stretched below the lid 18 located on the rear surface of the grass collection container 8 to cover all surfaces except the bottom surface 8d of the grass collection container 8. Ventilation holes 19a, 20a,
21a and 22a are provided.

Side plates 23 are attached to the right and left lateral surfaces 8c of the grass collection container 8 in a state of being located on the rear side, and from the side plate 23, the first bracket 23a located above and the first bracket 23a located below. A second bracket 23b is provided so as to project, and the lid 18 is pivotally attached to the upper first bracket 23a so as to be rotatable around the first horizontal axis P1. That is, the support arms 24 are attached to the left and right lateral sides of the lid 18 in a relatively immovable state, and the tips of the support arms 24 are located at the first side plate 23.
It is pivotally attached to the bracket 23a so as to be rotatable about the first horizontal axis P1. An air guide cover 25 is attached to an upper portion of the lid body 18 so that the lid body 18 and the air guide cover 25 can integrally rotate about the first horizontal axis P1. Has been done.

An upper cover 26 made of a synthetic resin molding is attached to the upper surface 8b of the grass container 8 so as to cover the punching metal 20 forming the upper ventilation hole 20a. As shown in FIG. 6, the upper cover 26 is formed so as to be bilaterally symmetric with respect to a center line L extending in the front-rear direction, and grass collection is performed in front of the front and left and right lateral sides. A U-shaped mounting portion 27 that is placed in contact with the upper surface 8b of the container 8 is provided.
A plurality of screw holes 27a are formed in the mounting portion 2 and
A hanging edge 28 hangs downward from the left and right end portions of 7,
When the U-shaped mounting portion 27 is mounted on the upper surface 8b of the grass container 8 and the screw is inserted into the screw hole 27a to attach the upper cover 26, the hanging edge 28 is formed on the left and right sides of the grass container 8. It is configured to hang down on both lateral surfaces 8c side.

The inside of the U-shaped mounting portion 27, in other words, the left-right intermediate portion of the upper cover 26 is bulged upward, and the upper cover 26 is placed on the upper surface 8b of the grass container 8. The guide bulging portion 29 is provided along the front-rear direction in order to guide the air from the upper ventilation hole 20a and discharge the air rearward in a state of being attached to the. The guide bulge 29 is
Inside the U-shaped mounting portion 27, a first bulge portion 29a formed over the entire surface and the first bulge portion 2 are formed.
9a includes a second swelling portion 29b swelling further upward than the first swelling portion 29a at the center in the left-right direction, and with the upper cover 26 attached to the upper surface 8b of the grass collection container 8. , The wind from the upper ventilation hole 20a receives the first bulge 2
9a and the second bulge 29b are discharged from the rear end opening,
Further, when the lid body 18 is in the closed posture, the air blown from the upper cover 26 is guided by the wind guide cover 25 and discharged downward in the rear of the lid body 18. .

On both the left and right lateral surfaces 8c of the grass container 8, a lateral cover 30 made of a synthetic resin molded product is provided so as to cover the punching metal 21 forming the lateral ventilation holes 21a. Both side covers 30 are attached and are formed by dividing the above-mentioned upper cover 26 into two. That is, as shown in FIG. 7, by splitting the upper cover 26 into left and right parts on the center line L, two left and right symmetrically divided covers 26a and 26b are formed. In each of the divided covers 26a and 26b,
As indicated by hatching in the figure, unnecessary lateral edges 28 are cut off, and a part of the rear end side is cut off to adjust the shape to form a lateral cover 30.

Then, the divided cover 26a shown in the upper part of FIG. 7 is attached to the right lateral surface 8c of the grass container 8 to be used as the right lateral cover 30, and the divided cover 26b shown below is used. One is attached to the left lateral surface 8c and used as the left lateral cover 30. At the time of attaching each horizontal portion cover 30, the screw holes 27a provided in each mounting portion 27 can be used as they are. By inserting the screws into the respective screw holes 27a, the screw holes 27a can be attached to both horizontal surfaces 8c. The wind from the lateral ventilation hole 21a is guided to the first bulging portion 29a and the second bulging portion 29b which are divided into two,
The bulging portions 29a and 29b are configured to be discharged backward and downward from the rear opening and the lower opening.

The container elevating link mechanism 9 includes an upper link 31, a lower link 32, and both links 3
Two sets of left and right are connected and mounted above a support frame 34 that is vertically arranged on the rear portion of the traveling machine body 3 and is configured by a vertical link 33 that pivotally connects the rear end portions of the first and second portions 32 to each other. The upper link 31 and the lower link 32 are formed in a "V" shape in which an intermediate portion thereof bulges upward in a side view, and each upper link 31 and the vertical link 33 have a second horizontal axis center. The side plate 23 attached to the lateral side surface 8c of the grass container 8 is pivotally connected to each other about the same second horizontal axis P2 while being pivotally connected to each other about the same lateral axis P2. The grass container 8 is supported by the container elevating link mechanism 9 in a state of being rotatable about the second horizontal axis P2.

A hydraulic cylinder 35 is provided between the lower portion of the support frame 34 and each lower link 32. The hydraulic cylinder 35 has a cylinder tube 35a on the support frame 34 and a cylinder rod 35b.
Is connected to the lower link 32 while being pivotally connected to the lower link 32, and the container elevating and lowering link mechanism 9 is vertically moved by the expansion and contraction operation of the pair of left and right hydraulic cylinders 35. The cylinder rod 35b has a lower link 32.
5, the upper end of a protection member 37 made of a metal round bar is fixed to the rear portion of the bracket 36 by welding, as shown in FIG. The lower side of the protection member 37 is inserted into an annular guide member 38 fixed to the cylinder tube 35a, and the protection member 37 extends and contracts with the cylinder rod 35b behind the cylinder rod 35b as the hydraulic cylinder 35 expands and contracts. It is configured to move.

The upward extension end of the vertical link 33 and the side plate 23.
Between the second bracket 23b of the hydraulic cylinder 39
The bracket 33a extending from the vertical link 33 and the intermediate portion of the support arm 24 are provided with a link link 40
When the hydraulic cylinder 39 is shortened, the grass container 8 is in a grass-collecting posture in which the hydraulic container 39 extends in the front-rear direction, as shown in FIGS. As shown by a phantom line, the grass container 8 is pivoted to the rearward and downward discharge posture, and the lid 18 is automatically pivoted as the grass container 8 pivots. It is configured to open and close the grass container 8. That is, when the grass container 8 is in the grass collecting posture, the lid 18 closes the grass container 8 and when the grass container 8 is rotated to the discharging posture, the support arm 24 and the side plate 23 are moved to the first position. The link link 40 is relatively pushed up with the movement of the first horizontal axis P1 which is a pivotal point with respect to the 1 bracket 23a, and the lid 18 is configured to open the rear surface of the grass container 8. .

As described above, the grass collection container 8 is raised by the container elevating link mechanism 9 and the grass collection container 8 is rotated to the discharge position by the extension of the hydraulic cylinder 39.
As shown in FIG. 5, the grass in the grass container 8 is discharged to the loading platform T1 of the truck T, and at that time, as described above, the upper link 31 and the lower link 32 are in the shape of “he”.
In particular, since the lower link 32 is formed in the shape of "V", the traveling machine body 3 can be brought as close as possible to the load carrier T1 while avoiding the contact of the lower link 32 with the load carrier T1. Therefore, the rear surface of the grass container 8 is placed on the loading platform T.
It is also possible to discharge the mowed grass at the central part of 1 or above the opposite side beyond the central part, and the mowed grass can be efficiently loaded on the bed T1 of the truck T. Further, due to the raising operation of the container elevating / lowering link mechanism 9, the hydraulic cylinder 35 is extended and the cylinder rod 35b is exposed. However, since the protection member 37 is located behind it to protect the cylinder rod 35b, The loading platform T1 of the truck T does not directly contact the cylinder rod 35b, and when the hydraulic cylinder 35 is shortened, the protection member 37 is located behind the cylinder tube 35a.
Damage to the cylinder rod 35b and the cylinder tube 35a is avoided.

[Other Embodiments] (1) In the previous embodiment, the grass container 8 is provided with an opening and the punching metals 19, 20, 21 and 22 are stretched, whereby the front ventilation hole 19a and the upper portion are provided. Although an example in which the ventilation hole 20a, the lateral ventilation hole 21a, and the rear ventilation hole 22a are formed has been shown, a large number of holes are directly formed in the grass container 8 and the lid 18, and the ventilation holes 19a, 20a, It is also possible to form 21, 22a, and these ventilation holes 19a, 20a, 2
Various modifications can be made to the specific configurations of the first and second parts 22a, and the grass container 8 itself can be made to a synthetic resin and the shape thereof can be changed.

(2) In the previous embodiment, the upper cover 26
Although the example in which the is formed of a molded product made of synthetic resin is shown, the upper cover 26 is formed of sheet metal, and the upper cover 26 made of sheet metal is formed.
The lateral cover 30 can also be formed by dividing into two. In any case, when the upper cover 26 is formed by removing the hanging edge 28 shown in the previous embodiment, it is not necessary to cut off the hanging edge 28 portion when forming the lateral cover 30. The lateral cover 30 can be formed by simply dividing the cover 26 into two.

(3) In the above embodiments, an example in which the upper cover 26 is divided into two parts to form the lateral cover 30 is shown. However, the upper cover 26 is not divided into two parts to form the lateral part cover 30. The upper cover 26 may be formed exclusively for the upper cover, and the horizontal cover 30 may be formed separately for the horizontal cover. In that case, the horizontal cover 30 forms the horizontal ventilation holes 21a. It is possible to cover not only the upper part of the punching metal 21 but also the entire punching metal 21.

[Brief description of drawings]

FIG. 1 Side view of a riding mower

FIG. 2 is a cross-sectional plan view of Mower.

FIG. 3 is a side view of the grass container and the lifting link mechanism for the container.

FIG. 4 is a perspective view of a grass container.

FIG. 5 is a top view of a hydraulic cylinder that operates a lifting link mechanism for a container.

FIG. 6 is an explanatory view of an upper cover, (a) is a bottom view,
(B) is a rear view, (C) is a vertical side view

FIG. 7 is a bottom view showing a lateral cover forming process.

FIG. 8 is a side view showing the operation of the grass collection container and the elevating link mechanism for the container.

[Explanation of symbols]

3 traveling aircraft 5 driver's seat 6 Moore 8 grass container 8a front of grass container 8b Upper part of grass container 8c Horizontal part of the grass container 10 Cutting grass guide 17 storage port 20a Upper ventilation hole 21a lateral ventilation hole 26 Top cover 26a, 26b split cover 29 Guide bulge 30 side cover

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Yuki 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Corporation Sakai Factory (72) Inventor Takeshi Komorita 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house (72) Inventor Shinichiro Saji 64 Ishizukita-machi, Sakai City, Osaka Inside Kubota Sakai Factory (56) References: Kaihei 3-91721 (JP, U) Shokai 63-107117 (JP, U) Actual Development Sho 64-22221 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01D 34 / 63,34 / 64 A01D 34 / 42,34 / 43

Claims (2)

(57) [Claims] 1. Traveling vehicle (3) having a driver's seat (5)
And a mower (6) for mowing provided at the lower part of the traveling machine body (3), and a plurality of upper ventilation holes (20a) provided at the rear part of the traveling machine body (3). Further, a grass collection container (8) having a large number of lateral ventilation holes (20b) on each of the left and right lateral parts thereof, and provided on the front part of the mower (6) and the grass collection container (8). A grass cutting guide body (10) connecting to the storage opening (17) is provided, and the grass cut by the mower (6) is conveyed by wind force along the grass cutting guide body (10) to collect the grass collection container (8). ) A riding type mower configured to collect grass in an upper cover (2) provided on an upper part of the grass collecting container (8).
6) State in which the upper ventilation hole (20a) is covered from above
And is configured to guide and discharge the wind from the upper ventilation hole (20a) to the rear of the grass collection container (8), and is provided on both left and right lateral portions of the grass collection container (8). Each of the lateral cover (30) has the lateral ventilation from the right and left lateral portions.
It is provided so as to cover the hole (21a) and guides the wind from the lateral ventilation hole (21a) to the rear and lower sides of the grass collection container (8) from the rear and lower sides of the lateral cover (30). A riding mower that is configured to dispense. 2. The upper cover (26) bulges upward to the middle portion in the left-right direction and guides the wind from the upper ventilation hole (20a) to discharge backward, and in the front-back direction. Each of the lateral cover (30) is provided with a guide bulge (29) along the front-back direction at an intermediate portion of the upper cover (26) in the left-right direction of the guide bulge (29). The riding-type mower according to claim 1, wherein the riding-type mower is formed by dividing covers (26a) (26b) formed by dividing the cover in two.