JP2006246804A - Mower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mower easy to attach/detach a duct 30 through which cut grass from a mowing device is conveyed via the space between left and right rear wheels into a grass-collecting container. <P>SOLUTION: The mower is such that the grass-collecting container 20 includes a wall 21 supported on a vehicle body and a container body 22 openably supported on the wall 21. In this mower, the duct 30 is detachably assembled on the wall 21 from behind the wall 21 via a duct hole of the wall 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention includes a wall body supported at the rear portion of a traveling vehicle body, and a grass collecting container including a container main body that is supported by the wall body so as to be freely opened and closed. The present invention relates to a mower having a duct for supplying the grass collecting container through a rear wheel.

  As the mowing machine, there is a conventional one shown in Patent Document 1, for example. That is, there was one provided with a vertical wall 30 (corresponding to a wall), a grass collecting container 5 (corresponding to a container body), and a duct 4.

  In this type of mower, it may be necessary to remove the duct, such as when the duct is clogged with cut grass. Conventionally, in this case, the wall is removed from the vehicle body and the duct is removed.

JP 2000-272235 A (paragraphs [0023], [0026], [0029], FIGS. 1, 3, 5, and 6)

  Conventionally, when performing maintenance work such as removing and cleaning a duct, work efficiency has been deteriorated due to work for removing and attaching the wall.

  An object of the present invention is to provide a mower capable of performing maintenance work with high performance even when a duct is attached and detached.

According to the first aspect of the present invention, there is provided a grass collecting container including a wall body supported at the rear portion of the traveling vehicle body and a container body supported to be freely opened and closed by the wall body, and cut grass from the mowing apparatus. In a mowing machine provided with a duct for supplying the grass collecting container through between the left and right rear wheels of the traveling vehicle body,
The said duct is assembled | attached so that attachment or detachment is possible from the back of the said wall body through the duct hole of the said wall body.

  In other words, if the container body is opened and the rear side of the wall body is opened, the duct can be removed from the duct hole of the wall body to the rear side of the vehicle body even if the wall body is supported by the vehicle body. It can be inserted into the duct hole of the wall body and assembled from the rear side of the vehicle body.

  Therefore, according to the first aspect of the present invention, when performing work such as removing the duct and cleaning it, the duct is detached while the wall body is attached to the vehicle body, and it is efficient without taking the trouble of removing the wall body. Can work.

  According to the second aspect of the invention, in the configuration of the first aspect of the invention, the cut grass entrance of the duct is externally fitted to the cut grass discharge tube of the mowing device.

  That is, if the duct is inserted into and removed from the duct hole of the wall body from the rear side of the wall body, the cut grass discharge tube and the duct are connected so that the duct communicates with or separates from the cut grass discharge tube of the mowing device. Even if they are fitted together, the cut grass receiving port of the duct is fitted outside the cut grass discharge tube of the mowing device, so that the cut grass from the mowing device is difficult to leak out between the cut grass discharge tube and the duct. Is supplied to the duct.

  Therefore, according to the second aspect of the present invention, the cut grass from the mowing device can be separated from the mowing grass discharge tube of the mowing device by simply inserting and removing the duct with respect to the duct hole of the wall body. It can be accurately collected in the grass collection container so that it is difficult to leak during transportation.

  In the third aspect of the invention, in the configuration of the first or second aspect of the invention, the duct is provided with a locking piece protruding to the outer peripheral side of the cut grass discharge port of the duct, and in the assembled state of the duct, The locking piece is configured to be in contact with and supported by the wall body.

  That is, when the duct is assembled, when the duct is inserted into the duct hole of the wall body and the locking piece of the duct comes into contact with the wall body, the duct is in a predetermined assembled state.

  Therefore, according to the third aspect of the invention, the duct is in a predetermined assembled state simply by inserting the duct into the duct hole until the locking piece of the duct comes into contact with the wall body, and the duct is easily and efficiently assembled. be able to.

In the fourth aspect of the invention, in the configuration of the third aspect of the invention, in the assembled state of the duct, the duct is positioned at a vehicle body upper side portion of the duct hole of the wall body,
A lid for closing a portion of the wall body located on the lower side of the vehicle body than the duct is provided in the duct hole, and the lid is provided with a support portion for supporting the locking piece of the duct. In the assembled state of the duct, the support portion of the lid body is configured to prevent the locking piece of the duct from coming off.

  That is, the lid body is opened to release the lid body from being prevented from being removed by the lid support portion, and the duct is removed by pulling out the duct from the duct hole to the vehicle body rear side. At this time, if the duct is operated to be lowered to the lower part of the duct hole opened by opening the lid, the duct can be easily taken out, for example, the leading end side of the duct is easily detached from the support portion.

  When the lid is opened and the duct is inserted into the duct hole and the duct enters a predetermined length, the lid is closed and the portion located below the duct in the duct hole is closed. Then, the support part of the lid body acts to prevent the locking piece of the duct from coming off, and the duct is held in a predetermined assembled state.

  Therefore, according to the fourth invention, when the duct is removed, the duct hole is made sufficiently larger than the duct by opening the lid, and the duct is moved in the duct hole so that the front end side of the duct can be easily detached from the support portion. The duct can be easily and quickly removed. When the duct is assembled, the duct can be prevented from coming off by the lid so that the duct can be stably supported in the assembled state, and the lid can be used as a retaining means to obtain an advantageous structure. Can do. Furthermore, the duct can be easily prevented from being released or released simply by opening and closing the lid.

  In the fifth aspect of the invention, in the configuration of the fourth aspect of the invention, the lid is provided with a full sensor for detecting the fullness of the grass collection container.

  In other words, even if a detection switch that takes out the detection result of the full sensor is supported on the back side of the lid so that mowing grass does not easily adhere, the detection switch can be easily cleaned and inspected by opening the lid. Can be opened.

  Therefore, according to the fifth aspect of the present invention, it is possible to detect fullness while making it difficult to cause a failure due to the attachment of cut grass and making it easy to perform cleaning and inspection.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a pair of left and right steering operations and driveable front wheels 1 and a pair of left and right driveable rear wheels 2 are provided, and power is applied to the front wheels 1 and 2 at the front end of the vehicle body. Front and rear wheels of a body frame 5 of a self-propelled vehicle body provided with a driving portion having an engine 3 and the like provided to transmit, and a driving portion having a driving seat 4 positioned between the left and right rear wheels 2 A mowing device 10 is connected to the mowing device 10 via the link mechanism 6, and power is transmitted from the engine 3 to the mowing device 10. A grass collecting container is provided near the rear of the rear wheel 2 at the rear of the self-propelled vehicle body. 20, and the cut grass discharge cylinder 11 of the mowing device 10 communicates with the grass collection container 20 via a duct 30 arranged so as to pass between the left and right rear wheels 1 and 2 in the front-rear direction of the self-propelled vehicle body. In this way, a riding mower is constructed.

  This mowing machine is used to cut grass and grass, and when the hydraulic lifting cylinder (not shown) linked to the link mechanism 6 is telescopically operated, the lifting cylinder moves the link mechanism 6 to the vehicle body frame 5. On the other hand, by swinging up and down operation, the mowing apparatus 10 is moved up and down into a lowering work state in which the ground gauge wheel 12 is grounded and to a non-working state in which the ground gauge wheel 12 is lifted from the ground. When the self-propelled vehicle body travels with the mowing device 10 in the descending work state, the mowing device 10 is a blade-shaped cutting blade 14 that can be driven and rotated and is located in the mowing blade housing 13 in a lateral direction of the self-propelled vehicle body. The turf and grass are cut by, and the cut grass and cut grass (hereinafter simply referred to as cut grass) are discharged from the cut grass discharge cylinder 11 of the cutting blade housing 13 by the conveying air generated by the rotation of the cutting blade 14. Then, it is conveyed to the rear of the vehicle body through the space between the left and right rear wheels 2 and 2 by the duct 30 and supplied to the grass collection container 20. The grass collection container 20 collects and stores the cut grass from the duct 30.

  As shown in FIGS. 1 and 5, the grass collection container 20 is rectangular when viewed from the front and back of the vehicle body supported by the rear portion of the vehicle body frame 5 through a support frame 5 a extending rearward from the vehicle body frame 5. In view, the apparatus includes a vertical plate-like wall body 21 extending in the vertical direction of the vehicle body and a container body 22 positioned on the rear side of the wall body 21.

  The container body 22 is configured in a box shape by a container frame 23 made of a round pipe material, and a pair of left and right lateral wall plates 24 connected to the container frame 23, a bottom plate, a top plate, and a rear wall plate. An opening 25 formed by the container frame 23 is provided on the front end side of the container body 22.

  A pair of left and right mounting brackets 26 provided inside the container main body 22 are extended from the wall body 21 toward the rear of the vehicle body, and a pair of left and right support arms 27 arranged so as to enter the container main body 22. The container main body 22 is connected to the extending end portion so as to be detachable and rotatable separately, and the container body 22 has a wall around the axis X of the traveling vehicle body which is located at the tip end portion of the support arm 27 as shown in FIG. It is supported by the wall 21 so as to swing up and down with respect to the body 21 and to be detachable between the mounting bracket 26 and the support arm 27 as shown in FIG.

  As shown in FIGS. 3A and 7, the duct 30 includes a cut grass inlet 31 on one end side, and a cut grass outlet 32 having a smaller diameter than the cut grass entrance 31 on the other end side, and the cut grass. Produced by molding a resin material so as to be provided with a locking piece 33 formed of a flange projecting over the entire circumference of the cut grass discharge port 32 on the outer peripheral side of the discharge port 32 and to have a rectangular cross section. It is comprised by the resin cylinder. The duct 30 is mounted as shown in FIGS.

  That is, the cut grass entrance 31 of the duct 30 is fitted around the cut grass discharge tube in the state where there is a slight gap between the cut grass discharge tube 11 of the mowing device 10 and the duct 30 near the front of the rear wheel 2. The connecting portion 34 located near the cut grass entrance 31 of the duct 30 is detachably supported by engaging with a pair of left and right supports 8 fixed to the vehicle body frame 5, and the cut grass discharge port 32 of the duct 30 is The end portion of the wall body 21 is positioned in the duct hole A, and the engaging piece 33 of the duct 30 is in contact with the vehicle body rearward facing surface of the wall body 21 to be supported. The assembled state is held by a sheet metal lid 40 provided on the rear surface side of the wall 21.

  As clearly shown in FIG. 8, the duct hole A of the wall 21 has a vertical diameter of the duct hole A in the vertical direction of the vehicle body, and the vertical direction of the vehicle body at the end where the cut grass entrance 31 of the duct 30 is located. The duct 30 in the assembled state is positioned at a portion of the duct hole A on the upper side of the vehicle body.

  As shown in FIG. 7, the support 8 includes a horizontal plate portion 8 a that receives and supports the connecting portion 34 of the duct 30 from the lower side inside the duct 30, and receives the connecting portion 34 of the duct 30 from the inside of the duct 30. And a plate portion 8b that supports the vertical direction so that the connecting portion 34 of the duct 30 is pulled out from the support body 8 to the rear side of the vehicle body, and the connecting portion 34 of the duct 30 is outside of the support body 8 from the rear side of the vehicle body. It is designed to fit in.

  As shown in FIG. 8, the lid body 40 is supported by a wall body 21 so as to swing around a vertical axis Y of the vehicle body disposed on the lateral end side of the lid body 40. By swinging around Y, the portion A1 of the duct body A of the wall body 21 located on the vehicle body lower side than the duct 30 is opened and closed. As shown in FIGS. 5 and 6, the lid body 40 operated in the closed state abuts against the locking piece 33 of the duct 30 by the support portion 41 provided at the upper end edge of the lid body 40 so as to prevent the lid body 40 from coming off. It has become. As shown in FIG. 6, when the lid body 40 is closed, a lock rod 42 that is supported on the rear surface side of the wall body 21 so as to be slidable in the vertical direction of the vehicle body is provided with a bracket 43 fixed to the lid body 40. By attaching to the lid, the lid 40 can be fixed in a closed state.

  That is, when the mowing operation is performed, the handle 45 (see FIGS. 1 and 5) fixed to the top plate of the container body 22 of the grass collection container 20 or the handle 46 (see FIG. 1) that protrudes upward from the top plate of the container body 22. 1 and 5), the container body 22 is swung downward about the axis X, so that the opening 25 of the container body 22 faces the front of the vehicle body and is closed by the wall body 21 to collect grass. The container 20 is closed for collecting grass. When the grass collection container 20 is in the grass collection closed state, a closing hook 28 provided on the left and right ends of the lower end side of the wall body 21 so as to be able to swing up and down is engaged with the container frame 23, and the grass collection container 20. Is locked in the closed state for collecting grass, and the vehicle runs in this state. Then, the duct 30 inherits the cut grass from the cut grass discharge tube 11 of the mowing device 10 on the front end side of the duct 30 and transports it in the rear direction of the vehicle body by the transport wind from the mowing device 10, and on the rear end side of the duct 30. The grass collection container 20 is fed from the cut grass discharge port 32 to the grass collection container 20, and the grass collection container 20 cuts the conveyance wind that has entered along with the cut grass from the duct 30 while discharging it out of the collection container from the exhaust hole provided in the horizontal wall plate 24. The grass is collected and stored in the grass collection container by the wall body 21 and the container body 22.

  When the grass collecting container 20 is full, the operating rod 29 (see FIG. 5) connected to one of the pair of left and right closing hooks 28 is raised, and the closing hook 28 connected to the operating rod 29 is connected. (See FIG. 5) is switched to the unlocked state released from the container frame 23, and the other closing hook 28 is also locked by the interlocking action of the single rotating support shaft 28a connecting the pair of left and right closing hooks 28. By operating in the release state, the closing lock of the grass collection container 20 by the closing hook 28 is released, and the handle 45 or 46 is operated to swing the container main body 22 around the axis X to the ascending side. The opening 25 of 22 is separated from the wall body 21 to the rear side, and is set in the ascending open state in which the vehicle body opens downward. Then, the grass collection container 20 becomes a discharge opening state, and the cut grass stored in the grass collection container can be dropped from the opening 25 of the container body 22 and discharged.

  Further, when performing maintenance work of the duct 30 such as removing cut grass clogged in the duct 30, the grass collection container 20 is put in the discharge state, or the container body 22 of the grass collection container 20 is supported by the wall body 21. It is removed from the arm 27, the lid body 40 is opened, and the stopper action on the locking piece 33 of the duct 30 by the support portion 41 of the lid body 40 is released, and the duct 30 is removed from the duct hole A of the wall body 21. The duct 30 can be detached from the support body 8 and the wall body 21 of the vehicle body by performing an extraction operation to the rear side of the body 21. At this time, since the lid 40 is open, the duct hole A of the wall body 21 is larger than the case where the duct 30 is assembled, and the duct 30 is extracted while moving the duct 30 to the lower side of the duct hole A. This facilitates removal of the duct 30 such that the front end side of the duct 30 is easily detached from the support 8.

  When the maintenance work for the duct 30 is completed, the duct 30 is inserted into the duct hole A of the wall body 21 from the rear side of the wall body 21 from the front end side of the duct 30, and the locking piece 33 of the duct 30 is connected to the rear surface of the wall body 21. When it abuts on the side, the lid 40 is closed and fixed to the closed state by the lock rod 42. Then, in the duct 30, the cut grass entrance 31 positioned on the duct front end side is fitted onto the cut grass discharge cylinder 11 of the mowing apparatus 10, and the connecting portion 34 on the duct front end side is engaged with the support body 8 on the vehicle body side. The latching piece 33 on the rear end side of the duct is supported and brought into contact with the wall body 21 to be in a predetermined assembled state. And the duct 30 can be hold | maintained in a predetermined | prescribed assembly | attachment state by the removal prevention effect | action by the support part 41 of the cover body 40. FIG.

  As shown in FIGS. 6 and 8, when the lid 40 is in a closed state, the lid 40 is provided with a full sensor 50 arranged so as to be positioned near the lower side of the cut grass discharge port 32 of the duct 30. A detection switch 51 linked to the full sensor 50 is provided on the back side of the lid 40.

  The full sensor 50 is supported so as to be swingable around a lateral axis Z located on the back side of the lid body 40, and when the grass collection container 20 is full, the pressing force due to the weight of the collected cut grass Is moved to the setting detection swinging state, thereby detecting that the grass collection container 20 is full and switching the detection switch 51 from OFF to ON. When the detection switch 51 is turned on, the detection switch 51 outputs a command for operating a full alarm device (not shown) located in the driving unit to a control device (not shown).

  As shown in FIGS. 5 and 8, a cut grass dropping guide 47 is provided on the upper surface side of the vehicle body front-rear facing portion on the base end side of each support arm 27 provided in the wall body 21. The cut grass fall guide 47 includes a pair of left and right inclined guide surfaces 47a, and supports the cut grass that has fallen from the container body 22 by the pair of inclined guide surfaces 47a when the grass collection container 20 is operated to the discharged state. The arm 27 is guided so as to fall off the lateral side of the arm 27, thereby preventing the cut grass from dropping and remaining on the upper surface side of the vehicle arm front-rear portion of the support arm 27.

Side view of the entire riding mower Top view of the entire riding mower (B) is a side view of the rear part of the vehicle body in a state where the grass container is discharged. Rear view showing the duct arrangement part of the car body Vertical side view of the collection container Rear view of wall of grass container Sectional view with the duct assembled Perspective view showing duct holes in wall

Explanation of symbols

2 Rear wheel 10 Mowing device 11 Mowing grass discharge tube 20 of mowing device Grass collecting container 21 Wall body 22 of the collecting vessel Container body 30 Duct 31 Duct cutting grass entrance 32 Duct cutting grass outlet 33 Duct locking piece 40 Lid 41 Lid support 50 Full sensor A Duct hole A1 Lower part of duct hole

Claims (5)

A grass collection container comprising a wall body supported at the rear part of the traveling vehicle body and a container body supported to be freely opened and closed by the wall body, and the cut grass from the mowing device between the left and right rear wheels of the traveling vehicle body A mower equipped with a duct for feeding to the grass container through
A mowing machine in which the duct is detachably assembled from the rear of the wall through a duct hole in the wall.   The mowing machine according to claim 1, wherein the cut grass entrance of the duct is configured to fit around a cut grass discharge tube of the mowing device.   The duct is provided with a locking piece that protrudes to the outer peripheral side of the cut grass discharge port of the duct, and in the assembled state of the duct, the locking piece is configured to contact and be supported by the wall body. The mower according to claim 1 or 2. In the assembled state of the duct, the duct is configured to be positioned in a vehicle body upper side portion of the duct hole of the wall body,
A lid for closing a portion of the wall body located on the lower side of the vehicle body than the duct is provided in the duct hole, and the lid is provided with a support portion for supporting the locking piece of the duct. The mowing machine according to claim 3, wherein in the assembled state of the duct, the support portion of the lid body is configured to prevent the retaining piece of the duct from coming off.   The mowing machine according to claim 4, wherein a full sensor for detecting the fullness of the grass collection container is provided on the lid.

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