JP2017123858A - Method for removing collector of riding lawn mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for removing a collector of a riding lawn mower, the method that is facilitated.SOLUTION: A method for removing a collector of a riding lawn mower is provided as follows: the collector is lifted from a vehicle body by lifting a lifting/lowering link mechanism; a collector removable carrier is inserted between the vehicle body and the collector from the rear of the vehicle body; the collector is lowered by lowering the lifting/lowering link mechanism, and the collector is mounted on the collector removable carrier; hydraulic piping connected to a lifting/lowering actuator is removed; the lifting/lowering link mechanism is removed from a strut; and the collector removable carrier is drawn from the vehicle body to the rear.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a riding mower that cuts grass in, for example, a field.

  A riding mower that cuts grass in a field is known (see, for example, Patent Document 1).

  Such a riding mower includes an elevating actuator for elevating an elevating link mechanism having a collector rotatably connected to a rear end thereof.

  Then, when the cut grass in the collector is discharged to the cut grass transport truck stopped behind the riding mower, the lift link mechanism is lifted using the lift actuator, and the collector is dumped.

EP 1142466

  It is an object to make it easy to remove the collector.

  An object is to provide a riding mower.

The first aspect of the present invention is
Supports front and rear wheels, mower deck provided in front of vehicle body, driver's seat provided in front of vehicle body, collector for storing cut grass provided in rear of vehicle, lifting link mechanism for lifting and lowering collector, and lifting link mechanism A riding lawn mower comprising a supporting column and a hydraulic lifting actuator that moves the lifting link mechanism up and down,
Equipped with a collector removable carrier that can be moved in the caster section,
Raise the lifting link mechanism to raise the collector from the vehicle body, insert the collector removable carrier between the vehicle body and the collector from the rear of the vehicle body, lower the lifting link mechanism to lower the collector and collect the collector This is a method for removing a collector of a riding lawn mower that is mounted on a detachable carrier, removes a hydraulic pipe connected to an elevating actuator, removes the elevating link mechanism from the column, and pulls the collector detachable carrier backward from the vehicle body.

  Thereby, if the collector detachable carrier is used, the collector can be detached from the riding mower.

The second aspect of the present invention
2. The method for removing a collector of a riding lawn mower according to claim 1, wherein the hydraulic piping of the lifting actuator is removed from the quick coupler.

The third aspect of the present invention provides
The dumping mechanism for discharging the mowing grass in the collector raised by the elevating link mechanism is provided, and the main body of the dumping mechanism is a base plate, and the base plate is placed on the collector detachable carrier. Item 3. A method of removing a collector of a riding lawn mower according to Item 2.

  Thereby, the removal of a collector can also remove integrally the whole raising / lowering link mechanism and the whole dump mechanism.

  According to the present invention, if the collector detachable carrier is used, the collector can be easily detached from the riding mower.

Schematic left side view of the riding mower according to Embodiment 1 of the present invention (No. 1) Schematic left side view of the riding mower according to Embodiment 1 of the present invention (No. 2) Schematic partial enlarged left side view in the vicinity of the lifting link mechanism and the dump mechanism of the riding mower according to Embodiment 1 of the present invention. Schematic left side view of a riding mower according to Embodiment 2 of the present invention (No. 1) Schematic left side view of a riding mower according to Embodiment 2 of the present invention (No. 2) Schematic left side view of the riding mower and collector removable carrier according to the second embodiment of the present invention. (A) Schematic left side view of the collector detachable carrier according to the second embodiment of the present invention, (b) Schematic rear view of the collector detachable carrier according to the second embodiment of the present invention. (A) Schematic partial left side view of the collector detachable carrier according to Embodiment 2 of the present invention in the vicinity of the left rear portion of the carrier body, (b) The carrier body of the collector detachable carrier according to Embodiment 2 of the present invention. Schematic partial rear view near the left rear Schematic partial left side view of the riding mower according to Embodiment 2 of the present invention in the vicinity of the rear part of the vehicle body. Schematic partial back view of the vicinity of the rear part of the vehicle main body of the riding mower according to Embodiment 2 of the present invention. Schematic partial rear view of the riding mower according to Embodiment 2 of the present invention in the vicinity of the bending plate member and the supporting member (part 1) Schematic partial rear view of the riding mower according to Embodiment 2 of the present invention in the vicinity of the folding plate member and the support member (part 2) Schematic partial rear view of the riding mower according to Embodiment 2 of the present invention in the vicinity of the folding plate member and the support member (No. 3) Schematic partial rear view of the riding mower according to Embodiment 2 of the present invention in the vicinity of the bending plate member and the supporting member (No. 4) Schematic partial right side view in the vicinity of the hydraulic piping of the riding mower according to Embodiment 2 of the present invention. Schematic partial plan view of the vicinity of the hydraulic piping of the riding mower according to Embodiment 2 of the present invention. Schematic plan view of the lifting / lowering cylinder mechanism hydraulic piping of the riding mower according to the second embodiment of the present invention. Schematic plan view of a dump cylinder mechanism hydraulic piping of the riding mower according to Embodiment 2 of the present invention The partial perspective view for demonstrating the locking mechanism of the lid | cover of the collector of the riding mower of Embodiment 2 in this invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
The configuration and operation of the riding mower of the first embodiment will be described.

  First, the configuration of the riding mower according to the present embodiment will be described with reference mainly to FIGS.

  1 and 2 are schematic left side views of the riding mower according to Embodiment 1 of the present invention.

  In FIG. 2, the illustration of the mower deck 1100 is omitted.

  Here, in FIG. 1, the state where the lifting link mechanism 1400 is lowered to the lowest level and the state where the dumping operation is not performed in the state where the lifting link mechanism 1400 is raised to the highest level are simultaneously shown by solid lines. In FIG. 2, the state in which the dumping operation is not being executed and the state in which the dumping operation is being executed in the state where the lifting / lowering link mechanism 1400 is raised to the highest level are simultaneously shown by solid lines. FIG. 3 is a partially enlarged view showing a state where the elevating link mechanism 1400 is lowered to the lowest position.

  The riding mower according to the present embodiment includes a front wheel 9110 and a rear wheel 9120, a mower deck 1100 provided in front of the vehicle main body 1000, a driver seat 1200 provided in a front portion of the vehicle main body 1000, and a vehicle main body 1000. A steering handle 9200 provided at the front end, an engine 9300 provided at a rear portion of the vehicle main body 1000, and a collector 1800 for accommodating cut grass are provided. The collector 1800 is configured to be provided above the engine 9300.

  In front of the engine 9300, a mission case 9400 and a blower 9500 that sucks the mowing grass cut by the mower deck 1100 and conveys it to the collector 1800 is provided. The blower 9500 and the mower deck 1100 communicate with each other through a grass cutting conveyance chute 9510 that guides the grass to be sucked.

  Support columns 1300 are provided on the left and right sides of the vehicle main body 1000, respectively. The support 1300 is located behind the driver seat 1200 and is provided in the middle of the vehicle main body 1000, but may be provided in the rear.

  The elevating link mechanism 1400 is a mechanism having a front end coupled to the support column 1300, and the elevating actuator 1510 is an actuator for elevating the elevating link mechanism 1400.

  The dump mechanism 1600 is a mechanism connected to the rear end member 1430 of the lifting link mechanism 1400. The dumping actuator 1710 is provided in the dumping mechanism 1600. In the case of a cylinder type, the rod is connected to the collector frame 1810 of the collector 1800, and is an actuator for dumping the collector 1800. The dumping actuator 1710 may be provided on the rear end member 1430 of the lifting link mechanism 1400.

  The collector connecting portion 1910 is a member for rotatably connecting the collector 1800 and is connected to the dump mechanism 1600.

  The elevating link mechanism 1400 is a substantially symmetrical component with respect to the left-right direction of the vehicle main body 1000, and an elevating actuator 2520 (see FIG. 16) having the same configuration as the elevating actuator 1510 is provided on the right side of the vehicle main body 1000. Is provided.

  The dump mechanism 1600 is also a substantially symmetrical component with respect to the left-right direction of the vehicle main body 1000, and a dump actuator (not shown) having the same configuration as the dump actuator 1710 is provided on the right side of the vehicle main body 1000. Yes.

  Of course, a collector connecting portion (not shown) having the same configuration as the collector connecting portion 1910 is provided on the right side of the vehicle main body 1000.

  In the description of the configuration having symmetry with respect to the left-right direction of the vehicle main body 1000 in this specification, a detailed description of the left side portion of the vehicle main body 1000 will be mainly given, and details regarding the right side portion of the vehicle main body 1000 will be mainly described. The explanation is often omitted.

  Next, the configurations of the lift link mechanism 1400 and the dump mechanism 1600 will be described more specifically with reference mainly to FIG.

  Here, FIG. 3 is a schematic part centered on the dump mechanism 1600 in the state where the lifting link mechanism 1400 is lowered to the lowest level in the riding mower according to the first embodiment of the present invention as described above. It is a left side view.

  The dump mechanism 1600 includes a dump upper link 1610 and a dump lower link 1620. Further, the dump upper link 1610 and the dump lower link 1620 are rotatably connected by a dump rear link 1630 on the rear side, and can be turned by a dump front link 1640 on the front side. It is connected.

  A rear end member 1430 of the lifting link mechanism 1400 is connected to the dump lower link 1620, and a collector connecting portion 1910 is provided to the dump upper link 1610. That is, a collector arm 1811 described later is connected to the collector connecting portion 1910 so as to be rotatable in the vertical direction, and the collector arm 1811 is fixed to a collector frame 1810 that is a lower frame of the collector 1800. Thus, the collector 1800 is rotatably connected to the dump upper link 1610.

  In the present embodiment, a frame member 1616 passing behind the collector 1800 connects the rear ends of the left and right dump upper links 1610.

  When the lift link mechanism 1400 is raised, the dump upper link 1610 is configured to be moved rearward with respect to the dump lower link 1620.

  That is, the elevating link mechanism 1400 includes an elevating upper link 1410 and an elevating lower link 1420. The dump upper link 1610 is used for dumping at the rear end of the elevating lower link 1420. A slide arm 1440 for moving backward with respect to the lower link 1620 is connected.

  Of course, the slide arm 1440 is connected to the rear end of the lower link 1420 for raising and lowering in the present embodiment, but may be connected to the rear end of the upper link 1410 for raising and lowering.

  Further, the dump front link 1640 includes a dump front link extending portion 1641 extending downward, and the rear end of the rear moving link 1650 is rotatably connected to the dump front link extending portion 1641. In addition, the front end of the backward movement link 1650 is rotatably connected to the slide arm 1440.

  Next, the operation of the riding mower according to the present embodiment, specifically, the link mechanism lifting operation and the collector dumping operation will be described with reference to FIGS.

  While describing the operation of the riding mower according to the present embodiment, the configuration of the above-described riding mower will be described supplementarily.

  The lift actuator 1510 lifts the lift link mechanism 1400 using the extension of the cylinder mechanism.

  The elevating link mechanism 1400 is a parallel link mechanism, in which the elevating upper link 1410 and the elevating lower link 1420 are parallel, and the column 1300 and the rear end member 1430 are maintained in a parallel state. ing.

  The rear end of the lower link for lifting 1420 and the lower end of the rear end member 1430 are rotatably connected by a connecting member 1441, and the lower link for raising and lowering 1420 and the slide arm 1440 are connected to the connecting members 1441 and 1442. The slide arm 1440 and the front end of the backward movement link 1650 are rotatably connected by a connecting member 1443.

  For this reason, the cylinder mechanism of the lifting / lowering actuator 1510 is extended. For example, when the lifting / lowering link mechanism 1400 starts to rise, the angle of the lower link 1420 for lifting / lowering viewed from the connecting member 1441 changes by Δθ. The angle when the connecting member 1443 is viewed from 1441 also changes by Δθ.

  Therefore, when the cylinder mechanism of the lifting / lowering actuator 1510 is extended, the front end of the rearward movement link 1650 is pulled forward, and the front link extension part 1641 for dumping is rotatably connected to the rear end of the rearward movement link 1650. Accordingly, the lower end of the dump front link 1640 is also pulled forward.

  Pulling forward means that the dumping lower link 1620 is pulled relatively forward as viewed from the rear end member 1430 of the lift link mechanism 1400 that is fixedly connected.

  On the other hand, the dump mechanism 1600 is also a parallel link mechanism in which the dump upper link 1610 and the dump lower link 1620 are parallel, and the dump front link 1640 and the dump rear link 1630 are kept parallel. It has a configuration that droops.

  Therefore, when the lower end of the dump front link 1640 is pulled forward as described above, the upper end of the dump front link 1640 is pushed backward, and the front end is rotatably connected to the upper end of the dump front link 1640. The upper dumping link 1610 is also pushed rearward along with this.

  It should be noted that being pushed backward means that the dumping lower link 1620 is pushed backward relatively as viewed from the rear end member 1430 to which the lifting link mechanism 1400 is fixedly connected.

  Thus, when the lifting link mechanism 1400 is raised, the dump upper link 1610 is moved rearward with respect to the dump lower link 1620.

  A state in which the dumping operation is being executed in a state where the elevating link mechanism 1400 is raised to the maximum will be described. As shown in FIG. 2, the dump actuator 1710 raises the collector frame 1810 of the collector 1800 using the collector connection portion 1910 as a dump fulcrum using the extension of the cylinder mechanism after the lifting link mechanism 1400 is raised to the maximum. . This causes the collector 1800 to be dumped.

  As described above, the lifting link mechanism 1400 is raised, and at the same time, the dump upper link 1610 can be moved rearward with respect to the dump lower link 1620, so that the collector connecting portion 1910 is moved from the rearmost portion of the vehicle main body 1000. The overhang distance d which is the horizontal distance up to can be sufficiently secured. Therefore, when the riding lawn mower is moved backward to approach the cargo bed of the mowing grass truck, the distance between the rear end of the vehicle body 1000 and the truck bed can be increased. The mowing grass in the collector 1800 can be discharged to the mowing conveyance truck stopped at the rear of the riding mower of the form at a flexible timing, and the burden on the operator to pay attention to the rear can be reduced. I can do it.

(Embodiment 2)
The configuration and operation of the riding mower of the second embodiment will be described.

  The configuration and operation of the riding mower of the present embodiment are similar to the configuration and operation of the riding mower of the first embodiment described above, but the lifting link mechanism 2400 and the dump mechanism 2600 of the present embodiment The related configuration and operation are different from the configuration and operation related to the lift link mechanism 1400 and the dump mechanism 1600 of the first embodiment.

  First, the configuration of the riding mower according to the present embodiment will be described with reference mainly to FIGS.

  4 and 5 are schematic left side views of the riding mower according to Embodiment 2 of the present invention.

  4 and 5, the mower deck 1100 is not shown.

  Further, in FIG. 4, a state in which the lifting / lowering link mechanism 2400 is lowered to the lowest level and a state where the dumping operation is not performed in the state where the lifting / lowering link mechanism 2400 is raised to the highest level are simultaneously indicated by solid lines. In FIG. 5, a collector 2800 indicated by a broken line indicates a state in which the dumping actuator 2710 is not operated in a state in which the elevating link mechanism 2400 is raised to the maximum. In FIG. 5, the collector 2800 indicated by the solid line indicates the state in which the dumping operation is not being performed and the state in which the dumping operation is being performed simultaneously with the solid line, with the lifting / lowering link mechanism 2400 being fully raised. ing.

  The elevating link mechanism 2400 is a mechanism having a front end coupled to the support column 1300, and the elevating actuator 2510 is an actuator for elevating the elevating link mechanism 2400.

  The dump mechanism 2600 is a mechanism connected to the rear end member 2430 of the elevating link mechanism 2400, and the dump actuator 2710 is provided in the elevating link mechanism 2400, is connected to the collector 2800, and is an actuator for dumping the collector 2800. It is.

  The collector connecting portion 2910 is a member provided in the dump mechanism 2600 for connecting the collector 2800 so as to be rotatable.

  The lift link mechanism 2400 is a substantially symmetric component with respect to the left-right direction of the vehicle main body 1000, and on the right side of the vehicle main body 1000, a lift actuator 2520 (see FIG. 16) having the same configuration as the lift actuator 2510 is provided. Is provided.

  The dump mechanism 2600 is also a substantially symmetric component with respect to the left-right direction of the vehicle main body 1000, and a dump actuator 2720 (see FIG. 16) having the same configuration as the dump actuator 2710 is provided on the right side of the vehicle main body 1000. It has been.

  Of course, a collector connecting portion (not shown) having the same configuration as the collector connecting portion 2910 is provided on the right side of the vehicle main body 1000.

  The configuration of the lift link mechanism 2400 and the dump mechanism 2600 will be described more specifically as follows.

  The collector connecting portion 2910 is movable in the front-rear direction with respect to the main body portion 2610 of the dump mechanism 2600.

  The collector connecting portion 2910 linearly moves backward by the action of the dumping actuator 2710, and the collector 2800 rotates backward by the action of the further dumping actuator 2710.

  Note that the rear end member 2430 of the lifting link mechanism 2400 is connected to the main body portion 2610 of the dump mechanism 2600.

  The lifting link mechanism 2400 includes a lifting upper link 2410 and a lifting lower link 2420.

  Next, with reference mainly to FIGS. 4 and 5, the operation of the riding mower of the present embodiment, specifically, the link mechanism ascending / descending operation and the collector dumping operation will be described.

  While describing the operation of the riding mower according to the present embodiment, the configuration of the above-described riding mower will be described supplementarily.

  The lift actuator 2510 lifts the lift link mechanism 2400 using the extension of the cylinder mechanism.

  The elevating link mechanism 2400 is a parallel link mechanism, and the elevating upper link 2410 and the elevating lower link 2420 are parallel to each other, and the support 1300 and the rear end member 2430 are maintained in a parallel state. ing.

  Thus, when the lift link mechanism 2400 is raised, the dump mechanism 2600 is also raised.

  The dumping actuator 2710 extends the dumping mechanism slider 2620 using the extension of the cylinder mechanism after the lifting link mechanism 2400 is raised to the maximum.

  That is, the main body portion 2610 of the dump mechanism 2600 is fixedly connected to the rear end member 2430 of the lifting link mechanism 2400, while the dump mechanism slider 2620 is slidable in the front-rear direction with respect to the main body portion 2610 of the dump mechanism 2600. The collector connecting portion 2910 is provided at the rear protruding end portion of the dump mechanism slider 2620. For example, the main body 2610 is a cylindrical member, and the dump mechanism slider 2620 is a rod slidably inserted into the cylindrical member.

  The rod of the cylinder mechanism of the dumping actuator 2710 is connected to the collector frame 2810 (see FIG. 19) as will be described later.

  However, even if the dumping actuator 2710 extends the cylinder mechanism, the dumping mechanism slider 2620 provided at the rear end of the collector connecting portion 2910 has a certain weight until it is extended to the maximum length. The collector 2800 only moves linearly backwards and is not dumped.

  The dump actuator 2710 further extends the cylinder mechanism after the dump mechanism slider 2620 is extended to the maximum length.

  Then, since the dump mechanism slider 2620 is extended to the maximum length, the collector 2800 cannot further move backward and starts to rotate backward.

  Thus, the collector 2800 is dumped using the collector connecting portion 2910 as a dump fulcrum.

  According to the above description, after raising the lifting link mechanism 2400 to the maximum, the dump mechanism slider 2620 is extended to the maximum length, and the overhang distance d, which is the horizontal distance from the rearmost part of the vehicle main body 1000 to the collector connecting part 2910, is sufficient. After securing, it is possible to discharge the mowing grass in the collector 2800 to the mowing conveyance truck stopped at the rear of the riding mower according to the present embodiment at a flexible timing. It became clear that the burden of paying was reduced.

  Next, the configuration and operation of the collector detachable carrier 3000 according to the second embodiment will be described with reference mainly to FIGS.

  FIG. 6 is a schematic left side view of the riding mower and collector removable carrier 3000 according to the second embodiment of the present invention. FIG. 7A is a collector removable carrier 3000 according to the second embodiment of the present invention. FIG. 7B is a schematic rear view of the collector removable carrier 3000 according to the second embodiment of the present invention.

  The collector detachable carrier 3000 includes a carrier body 3100 that can be inserted from the rear of the riding mower according to the present embodiment, a front caster portion 3200, and a rear caster portion 3300.

  If the collector detachable carrier 3000 is used, the collector 2800 can be easily attached to and detached from the riding mower of this embodiment.

  Therefore, a procedure for removing the collector 2800 from the riding mower using the collector detachable carrier 3000 will be specifically described.

(First step)
As described above, the elevating link mechanism 2400 is raised, the collector 2800 is raised, the collector detachable carrier 3000 is inserted from the rear of the vehicle body 1000, and the lock function of the front caster portion 3200 and the rear caster portion 3300 is turned on. To.

  When the ground is inclined, the adjuster bolt part 3310 provided in the rear caster part 3300 is adjusted so that the state of the carrier body 3100 is horizontal.

(Second procedure)
The elevator link mechanism 2400 is lowered, the collector 2800 is lowered, and the collector 2800 is mounted on the collector detachable carrier 3000.

(Third procedure)
By removing the hydraulic pipe 4100 connected to the lift actuator 2510 and the dump actuator 2710 from the quick coupler 4200 provided at the rear of the driver seat 1200, the hydraulic pipe 4100 is removed from the control valve 4300 provided at the driver seat 1200. Separate.

(Fourth procedure)
The lifting cylinder lower pin used for attaching the lifting actuator 2510 to the vehicle main body 1000 is pulled out, and the pulled lifting cylinder lower pin is inserted into the lifting cylinder lower pin receiver 2511 provided in the carrier body 3100. .

(Fifth procedure)
Remove electrical wiring (not shown) such as full sensor harness.

(Sixth procedure)
A lift link upper pin (not shown) used for mounting the lift link mechanism 2400 to the column 1300 is removed.

(Seventh step)
The lock function of the front caster part 3200 and the rear caster part 3300 is turned off, and the collector detachable carrier 3000 on which the collector 2800 is mounted is extracted from the rear of the vehicle main body 1000.

  By the way, attachment and removal of the collector 2800 described above are performed by integrally removing the lifting link mechanism 2400 and the dump mechanism 2600 as a whole.

  For this reason, the main body portion 2610 of the dump mechanism 2600 has a role as a so-called base plate.

  Therefore, the function of suppressing the positional deviation of the collector 2800 mounted on the collector detachable carrier 3000 and the function of suppressing the positional deviation of the collector 2800 mounted on the riding mower of the present embodiment are combined. The bent plate member 2611 may be provided on the back surface of the main body portion 2610 of the dump mechanism 2600. Details thereof will be described below.

  First, the function of suppressing the misalignment of the collector 2800 mounted on the collector detachable carrier 3000 of the bent plate member 2611 will be described with reference mainly to FIGS. 8 (a) and 8 (b).

  FIG. 8A is a schematic partial left side view of the collector detachable carrier 3000 according to the second embodiment of the present invention in the vicinity of the left rear portion of the carrier main body 3100, and FIG. FIG. 10 is a schematic partial rear view of the collector removable carrier 3000 according to the second embodiment in the vicinity of the left rear portion of the carrier body 3100.

  The carrier body 3100 is provided with a fitting member 3110 that fits the bent plate member 2611 when the collector 2800 is mounted on the collector detachable carrier 3000.

  The collector position shift suppression pin 3111 inserted into the two holes drilled in the fitting member 3110 passes through the space formed by fitting the bent plate member 2611 and the fitting member 3110.

  For this reason, the positional relationship between the bending plate member 2611 and the fitting member 3110 is not greatly changed.

  A normal height operator can easily insert such a collector position shift suppression pin 3111 in a state where the elevating link mechanism 2400 is in the lowest position.

  Next, with reference mainly to FIG. 9 and FIG. 10, the function of the folding plate member 2611 for suppressing the displacement of the collector 2800 relative to the riding mower when the collector 2800 is mounted on the riding mower will be described.

  FIG. 9 is a schematic partial left side view of the riding mower according to the second embodiment of the present invention in the vicinity of the rear portion of the vehicle main body 1000, and FIG. 10 is a riding mower according to the second embodiment of the present invention. FIG. 2 is a schematic partial rear view of the vicinity of a rear portion of the vehicle main body 1000.

  A columnar support member 1010 that supports the bent plate member 2611 when the collector 2800 is mounted on the riding mower of the present embodiment is provided at the rear of the vehicle main body 1000. The support member 1010 is inclined when viewed from the back.

  The inclined surface formed by bending the bending plate member 2611 is supported by the support member 1010 so that the collector 2800 is swung back toward the center of the vehicle body 1000 even if the collector 2800 is swung. That is, since the inclined upper surface of the support member 1010 is in contact with the inner inclined surface of the inclined surfaces formed by bending, the position adjustment is automatically realized.

  For this reason, the positional relationship between the collector 2800 and the vehicle main body 1000 is configured to be maintained in a normal relationship in a state in which the elevating link mechanism 2400 is lowered to the lowest and the mowing work is performed.

  11 to 14 show various adjustment methods for absorbing the assembly error of the collector frame 2810 of the collector 2800 and the maximum compression length tolerance related to the cylinder mechanism of the lifted link mechanism 2400 that has been lowered. ing. As a result, functions related to the positional relationship between the collector 2800 and the vehicle main body 1000, such as securing a route through which the cut grass is sent from the mower deck 1100 by the blower blow and the door lock of the collector 2800, are more reliably exhibited. Can do.

  Here, FIGS. 11 to 14 are schematic partial rear views (parts 1 to 4) of the vicinity of the folding plate member 2611 and the support member 1010 of the riding mower according to the second embodiment of the present invention.

  In FIG. 11, two long holes (not shown) whose longitudinal direction is the desired position adjustment direction are perforated in the thickness direction of the main body portion 2610 of the dump mechanism 2600, and the main body portion 2610 is bent to the bent plate member 2611. Two bolts 2612 and 2613 for attachment are inserted so as to penetrate the elongated holes, respectively.

  In FIG. 12, a configuration similar to the configuration described above is used, but the desired position adjustment direction is the length direction, and one end is fixed to a bracket 2615 provided in the main body portion 2610 of the dump mechanism 2600. The other end of the position adjusting bolt 2614 is inserted into the bending plate member 2611 so that its position can be adjusted.

  In FIG. 13, between the support member 1010 and the bracket 1012 provided in the vehicle main body 1000 into which the bolt 1011 having the desired position adjustment direction for attaching the support member 1010 as the length direction is inserted. The spacer 1013 having a shape that fits the bolt 1011 with the same position adjustment direction as the thickness direction is inserted.

  In FIG. 14, a configuration similar to the configuration described above is used, but the bolt 1011 is inserted into the bracket 1012 so that its position can be adjusted.

  Next, the configuration and operation of the hydraulic piping 4100 of the present embodiment will be described with reference mainly to FIGS.

  FIG. 15 is a schematic partial right side view of the vicinity of the hydraulic piping 4100 of the riding mower according to the second embodiment of the present invention. FIG. 16 is a schematic view of the riding mower according to the second embodiment of the present invention. FIG. 17 is a schematic partial plan view of the vicinity of the hydraulic piping 4100. FIG. 17 is a schematic plan view of the lifting / lowering cylinder mechanism hydraulic piping 4110 of the riding mower according to the second embodiment of the present invention. FIG. It is a typical top view of dumping cylinder mechanism hydraulic piping 4120 of the riding mower of Embodiment 2 in the invention.

  The hydraulic pipe 4100 is connected to the control valve 4300 via a quick coupler 4200.

  The hydraulic pipe 4100 includes a lifting cylinder mechanism hydraulic pipe 4110 connected to the lifting actuators 2510 and 2520, and a dump cylinder mechanism hydraulic pipe 4120 connected to the dump actuators 2710 and 2720. ing.

  Here, the lifting / lowering cylinder mechanism hydraulic piping 4110 and the dumping cylinder mechanism hydraulic piping 4120 will be described.

  First, the lifting cylinder mechanism hydraulic pipe 4110 will be described with reference to FIG.

  The lifting / lowering cylinder mechanism hydraulic piping 4110 includes a lifting / lowering cylinder mechanism extension hydraulic piping 4111 and a lifting / lowering cylinder mechanism compression hydraulic piping 4112.

  With respect to the lifting / lowering cylinder mechanism extension hydraulic pipe 4111, a pipe extending from the raising / lowering cylinder mechanism extension hydraulic pipe port of the quick coupler 4200 branches in the middle, and the other pipe reaches the extension hydraulic pipe port of the lifting / lowering actuator 2510. The other pipe is connected to the extension hydraulic pipe port of the lifting / lowering actuator 2520.

  As for the lifting cylinder mechanism compression hydraulic pipe 4112, the pipe extending from the lifting cylinder mechanism compression hydraulic pipe port of the quick coupler 4200 branches in the middle, and the other pipe reaches the compression hydraulic pipe port of the lifting actuator 2510. Further, the other pipe is connected to the compression hydraulic pipe port of the lifting / lowering actuator 2520.

  Next, the dump cylinder mechanism hydraulic pipe 4120 will be described with reference to FIG.

  The dump cylinder mechanism hydraulic pipe 4120 includes a dump cylinder mechanism extension hydraulic pipe 4121 and a dump cylinder mechanism compression hydraulic pipe 4122.

  For the dump cylinder mechanism extension hydraulic pipe 4121, the pipe extending from the dump cylinder mechanism extension hydraulic pipe port of the quick coupler 4200 reaches the extension hydraulic pipe port of the dump actuator 2720, and the pipe ahead is the extension of the dump actuator 2710. It is configured to reach the hydraulic piping port.

  With respect to the dump cylinder mechanism compression hydraulic pipe 4122, the pipe extending from the dump cylinder mechanism compression hydraulic pipe port of the quick coupler 4200 reaches the compression hydraulic pipe port of the dump actuator 2720, and the pipe ahead is compressed by the dump actuator 2710. It is configured to reach the hydraulic piping port.

  The reason for adopting such a configuration is that the control valve 4300 to which the hydraulic pipe 4100 is connected via the quick coupler 4200 is provided on the right side of the vehicle main body 1000.

  More specifically, a pipe from the cylinder mechanism extending hydraulic piping port of the quick coupler 4200 directly to the extending hydraulic piping port of the dumping actuator 2710 provided on the left side of the vehicle body 1000, and the quick coupler 4200 In the configuration in which there is a pipe from the dump cylinder mechanism compression hydraulic piping port directly to the compression hydraulic piping port of the dumping actuator 2710 provided on the left side of the vehicle main body 1000, the total piping length is the configuration described above. There is a high possibility that it will be considerably larger than the total pipe length.

  In short, the configuration of the dump cylinder mechanism hydraulic piping 4120 can realize an economical and efficient piping layout without an unnecessary piping hose.

  In each of the dump cylinder mechanism extension hydraulic pipe 4121 and the dump cylinder mechanism compression hydraulic pipe 4122, the pipe from the quick coupler 4200 to the dump actuator 2720 is provided on the right side of the vehicle main body 1000. A pipe cover 2411 attached to the link 2410 is provided so as to pass through.

  For this reason, since the piping hose is less visible from the outside, the aesthetic appearance is improved.

  Note that in both the dump cylinder mechanism extension hydraulic pipe 4121 and the dump cylinder mechanism compression hydraulic pipe 4122, the pipe from the dump actuator 2720 to the dump actuator 2710 is between the left and right main body portions 2610 of the dump mechanism 2600. It is provided along the passing frame member 2616 (in the case of Embodiment 1, the frame member 1616).

  In addition, the pipe from the quick coupler 4200 to the upper link 2410 for lifting / lowering is perforated in the column 1300 by attaching the quick coupler stay for the quick coupler 4200 to the column 1300 to which the front end of the lifting / lowering link mechanism 1400 is connected. It may be provided so as to pass through the hole.

  Next, the lid locking mechanism of the collector 2800 will be described.

  FIG. 19 is a partially enlarged perspective view of the collector 2800. Reference numeral 2820 denotes a main body of the collector 2800, and 2830 denotes a lid of the collector 2800. The state of FIG. 19 shows a state where the collector 2800 is placed on the dump mechanism 2600 described above (non-dump state). Moreover, one part has shown the assembly state.

  A collector arm 2811 is rotatably connected to a support plate 2617 fixed to the rear end of the dump mechanism slider 2620 of the dump mechanism 2600 described above to form a collector connection portion 2910. As described above, the upper end of the collector arm 2811 is fixed to the collector frame 2810 of the collector 2800 with a bolt or the like. Although not shown, the same mechanism is provided on the right side of the collector 2800.

  On the other hand, a support arm 5010 is fixed to a support plate 2617 fixed to the rear end of the dump mechanism slider 2620. Further, a first door lock plate 5020 is rotatably connected to the upper end of the support arm 5010 by a shaft 5030. Further, although not shown in the drawing, a hook spring is built in the shaft 5030 and constantly urges the first drag lock plate 5020 in a direction to lock the first drag lock plate 5020 in a counterclockwise direction.

  A hook-shaped second door lock plate 5040 is fixed to the rear end of the upper end of the first door lock plate 5020 with a screw. The screw can be adjusted back and forth by a long hole. On the other hand, a protrusion 5050 is formed at the front upper end of the first door lock plate 5020, a part of which is bent into an L shape and protrudes to the left.

  A door lock operating pin 5060 passes through the protruding portion 5050. The door lock operating pin 5060 is fixed by a clasp 5070, and a spring (not shown) is provided between the clasp 5070 and the protruding portion 5050. ) Is inserted, and the door lock operating pin 5060 can move up and down somewhat.

  The lower end 5061 of the door lock operating pin 5060 is bent to the left, enters the lower side of the collector arm 2811, and is in contact (in a non-dumping state). As will be described later, the collector arm 2811 is separated from the lower end 5061 of the door lock operating pin 5060 in the dump state.

  On the other hand, the collector lid 2830 can be opened and closed at the upper part of the collector body 2820 by a hinge 2831 as indicated by an arrow. Further, a door handle 6000 is connected to the collector lid 2830 so as to be movable up and down to some extent.

  That is, a pair of brackets 6010 and 6010 are erected on the inner wall of the collector lid 2830 toward the collector main body 2820 side. Pins 6011 and 6011 are rotatably inserted into the brackets 6010 and 6010, L-shaped angles 6020 and 6020 are fixed to the pins 6011 and 6011, and the doors are connected to the angles 6020 and 6020. Both ends of the handle 6000 are fixed. That is, the collector lid 2830 is provided with a pair of longitudinal elongated holes 6030 and 6030 on the left and right, and both end portions of the door handle 6000 pass through the longitudinal elongated holes 6030 and 6030. Through the longitudinal long holes 6030 and 6030, the door handle 6000 can move up and down to some extent.

  On the other hand, L-shaped angles 6040 and 6040 are fixed near both ends of the door handle 6000, respectively. Further, U-shaped handles 6050 and 6050 are fixed to the L-shaped angles 6040 and 6040 downward.

  In the state of FIG. 19 that is a non-dumping state, the hook portion 5041 of the hook-shaped second door lock plate 5040 described above is hooked on the U-shaped handles 6050 and 6050 and is in a locked state.

  Next, the case where the operator operates the door handle 6000 to open the collector lid 2830 in the non-dump state will be described.

  The operator lifts the door handle 6000 slightly when opening the collector lid 2830. As a result, the U-shaped handles 6050 and 6050 are lifted upward and detached from the hook portions 5041 and 5041.

  When the operator closes the collector lid 2830, the door handle 6000 is lowered. As a result, the U-shaped handles 6050 and 6050 enter the wraparound lock state while pushing down the hook portion 5041 of the second door lock plate 5040. The shape of the hook portion 5041 is an inclined shape that can realize such movement.

  Next, a description will be given of an operation in which the collector lid 2830 is automatically unlocked and opened when dumping and is automatically locked when returning.

  As described above, when the collector 2800 is lifted by the dumping actuator 2710, the collector arm 2811 rotates clockwise. On the other hand, the support arm 5010, the first door lock plate 5020, and the second door lock plate 5040 do not move. As a result, the U-shaped handles 6050 and 6050 are about to come off from the hook portion 5041 of the second door lock plate 5040.

  At this time, since a little space has begun between the door lock operating pin 5060 and the collector arm 2811, the collector arm 2811 indicates that the second door lock plate 5040 rotates clockwise, that is, in the disengagement direction. Will not interfere.

  As a result, the U-shaped handles 6050 and 6050 are completely detached from the hook portions 5041 of the second door lock plate 5040. Therefore, the collector lid 2830 can move freely from the collector body 2820. Since the collector lid 2830 is heavy, the collector lid 2830 moves away from the collector body 2820 as it rotates, and is in an open state.

  Next, an automatic locking operation when the collector main body 2820 is returned to the original state by retracting the rod of the dumping actuator 2710 from the opened state of the collector lid 2830 will be described.

  When the collector body 2820 rotates counterclockwise and returns to the dump mechanism 2600, the U-shaped handles 6050 and 6050 hit the hook portion 5041 of the second door lock plate 5040. Since a slight gap remains between the operating pin 5060 and the collector arm 2811, the hook portion 5041 of the second door lock plate 5040 can be rotated, and the U-shaped handle 6050, depending on the weight of the collector lid 2830, 6050 enters the hook portion 5041.

  Further, when the collector main body 2820 is completely placed on the dump mechanism 2600, there is no gap between the collector arm 2811 and the door lock operating pin 5060, and the collector arm 2811 presses the door lock operating pin 5060. Thus, the hook portion 5041 of the second door lock plate 5040 cannot be rotated, and the locked state is completed.

  In this way, the collector lid is automatically locked and automatically opened. This locking mechanism can also be applied to the case of the first embodiment. In the first embodiment, the frame member 1616 corresponds to the rear end of the dump mechanism slider 2620, and the collector arm 1811 corresponds to the collector arm 2811.

  The riding mower according to the present invention can discharge the mowing grass in the collector to the mowing grass transport truck at a more flexible timing. For example, the riding mowing machine can be used for a riding mowing machine for mowing in a field. Useful for.

DESCRIPTION OF SYMBOLS 1000 Vehicle body 1100 More deck 1200 Driver's seat 1300 Prop 1400 Elevating link mechanism 1510 Elevating actuator 1600 Dump mechanism 1710 Dumping actuator 1800 Collector 1910 Collector connection part 2400 Elevating link mechanism 2510 Elevating actuator 2600 Dump mechanism 2710 Dump actuator 3800 Collector Detachable carrier 4100 Hydraulic piping 4200 Quick coupler

Claims (3)

Supports front and rear wheels, mower deck provided in front of vehicle body, driver's seat provided in front of vehicle body, collector for storing cut grass provided in rear of vehicle, lifting link mechanism for lifting and lowering collector, and lifting link mechanism A riding lawn mower comprising a supporting column and a hydraulic lifting actuator that moves the lifting link mechanism up and down,
Equipped with a collector removable carrier that can be moved in the caster section,
Raise the lifting link mechanism to raise the collector from the vehicle body, insert the collector removable carrier between the vehicle body and the collector from the rear of the vehicle body, lower the lifting link mechanism to lower the collector and collect the collector A method for removing a collector of a riding lawn mower that is mounted on a detachable carrier, removes a hydraulic pipe connected to an elevating actuator, removes the elevating link mechanism from the column, and pulls the collector detachable carrier backward from the vehicle body.   2. The method for removing a collector of a riding lawn mower according to claim 1, wherein the hydraulic piping of the lifting actuator is removed from the quick coupler.   The dumping mechanism for discharging the mowing grass in the collector raised by the elevating link mechanism is provided, and the main body of the dumping mechanism is a base plate, and the base plate is placed on the collector detachable carrier. Item 5. A method for removing a collector of a riding lawn mower according to item 2.

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