JP2018102237A - Riding mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in a conventional riding mower in which it is difficult to contain a collector without a tilt in the center of a vehicle body in the lowermost position.SOLUTION: A riding mower is characterized as follows: a left-side link frame abutment member 450 L and a left-side support base receiving member 150 L are arranged so that an abutment surface 451 L of the left-side link frame abutment member 450 L may come in abutment with a receiving surface 151 L of the left-side support base receiving member 150 L, when a collector 700 is in the lowermost position in the lifting/lowering operation; a right-side link frame abutment member 450R and a right-side support base receiving member 150R are arranged so that an abutment surface 451R of the right-side link frame abutment member 450R may come in abutment with a receiving surface 151R of the right-side support base receiving member 150R, when the collector 700 is in the lowermost position in the lifting/lowering operation; the receiving surface 151 L of the left-side support base receiving member 150 L is tilted; and the receiving surface 151R of the right-side support base receiving member 150R is tilted.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a riding mower for performing mowing work.

  2. Description of the Related Art Riding grass mowers including a vehicle body, a mower attached to the vehicle body for cutting grass, a collector for storing the cut grass, and a collector lifting link mechanism for lifting and lowering the collector are known. (For example, refer to Patent Document 1).

  The link frame contact member is provided in the link frame of the collector elevating link mechanism, the support base receiving member is provided in the support base of the vehicle body, and when the collector is at the lowest position in the elevating operation, The link frame contact member and the support base receiving member are arranged so that the contact surface of the link frame contact member contacts the receiving surface of the support base receiving member.

JP 2009-089657 A

  However, the present inventor has found that it is difficult to accommodate the collector without inclination in the center of the vehicle body at the lowest position in the above-described conventional riding mower.

  And this inventor thinks that it is important to store a collector without inclination in the center of a vehicle body in the lowest position, for example, in order to control frame deformation or breakage.

  In view of the above-described conventional problems, an object of the present invention is to provide a riding mower that can accommodate a collector without inclination in the center of a vehicle body at the lowest position.

The first aspect of the present invention is a vehicle body,
Mower attached to the vehicle body to cut grass,
A collector containing the cut grass;
A collector elevating link mechanism for elevating the collector;
With
The link frame of the collector raising / lowering link mechanism is provided with a pair of a left link frame contact member and a right link frame contact member in the left-right direction of the vehicle body,
The support base of the vehicle body is provided with a pair of a left support base support member and a right support base support member in the left-right direction,
The left link frame contact member, so that the contact surface of the left link frame contact member contacts the receiving surface of the left support base when the collector is at the lowest position in the lifting operation; and The left support base receiving member is disposed,
The right link frame contact member so that the contact surface of the right link frame contact member contacts the receiving surface of the right support base receiving member when the collector is in the lowest position in the lifting operation; And the right support base receiving member is disposed,
The receiving surface of the left support base receiving member is inclined,
The riding mower is characterized in that the receiving surface of the right support base receiving member is inclined.

  As a result, the receiving surface of the left support base receiving member is inclined, and the receiving surface of the right support base receiving member is inclined, so that the collector can be accommodated in the center of the vehicle body without inclination at the lowest position. it can.

According to a second aspect of the present invention, the receiving surface of the left support base receiving member is inclined such that the left side is lower than the right side with respect to the left-right direction,
In the riding mower according to the first aspect of the present invention, the receiving surface of the right support base receiving member is inclined with respect to the left-right direction so that the right side is lower than the left side.

  Accordingly, the receiving surface of the left support base receiving member is inclined so that the left side is lower than the right side in the left-right direction, and the right side of the receiving surface of the right support base receiving member is lower than the left side in the left-right direction. Therefore, the collector can be accommodated in the center of the vehicle body without inclination at the lowest position with a simple configuration.

According to a third aspect of the present invention, the receiving surface of the left support base receiving member is inclined such that the rear side is lower than the front side with respect to the longitudinal direction of the vehicle body,
In the riding mower according to the second aspect of the present invention, the receiving surface of the right support base receiving member is inclined so that the rear side is lower than the front side with respect to the front-rear direction.

  Thereby, the receiving surface of the left support base receiving member is inclined so that the rear side is lower than the front side in the longitudinal direction of the vehicle body, and the receiving surface of the right support base receiving member is the rear side from the front side in the front and rear direction. Since it is inclined so as to become lower, the contact surface of the left link frame contact member and the contact surface of the right link frame contact member are firmly attached from the rear to the receiving surface of the left support base and the right support base, respectively. It can be brought into contact with the receiving surface of the member.

4th this invention is equipped with the collector dump mechanism attached to the said collector raising / lowering link mechanism which performs the dump operation of the said collector,
The collector bottom frame of the collector is provided with a pair of a left collector bottom frame contact member and a right collector bottom frame contact member in the left-right direction,
The link frame of the collector elevating link mechanism is provided with a pair of a left link frame receiving member and a right link frame receiving member in the left-right direction,
The left collector bottom frame abutting member so that the abutting surface of the left collector bottom frame abutting member abuts the receiving surface of the left link frame receiving member when the collector is at the lowest position in the dumping operation. , And the left link frame receiving member is disposed,
When the collector is at the lowest position in the dumping operation, the right collector bottom frame abutment so that the abutment surface of the right collector bottom frame abutment member abuts on the reception surface of the right link frame receiving member A member, and the right link frame receiving member are arranged,
The receiving surface of the left link frame receiving member is inclined,
The receiving mower according to any one of the first to third aspects of the present invention, wherein the receiving surface of the right link frame receiving member is inclined.

  As a result, the receiving surface of the left link frame receiving member is inclined, and the receiving surface of the right link frame receiving member is inclined, so that the collector is accommodated in the center of the collector lifting link mechanism at the lowest position. can do.

  According to the present invention, it is possible to provide a riding mower capable of accommodating the collector without inclination in the center of the vehicle body at the lowest position.

Schematic left side view of a riding mower according to an embodiment of the present invention The perspective view of the riding mower of embodiment in this invention Rear view of a riding mower according to an embodiment of the present invention (part 1) Partial perspective view in the vicinity of a collector lifting link mechanism and a collector dump link mechanism of a riding mower according to an embodiment of the present invention (part 1) Partial perspective view in the vicinity of the collector lifting link mechanism and the collector dump link mechanism of the riding mower according to the embodiment of the present invention (Part 2) The partial left view of the collector raising / lowering link mechanism and the collector dump link mechanism vicinity of the riding mower according to the embodiment of the present invention The partial perspective view of the collector bottom frame vicinity of the riding mower of embodiment in this invention The partial perspective view of the support stand vicinity of the riding mower of embodiment in this invention The partial perspective view of the link frame vicinity of the riding mower of embodiment in this invention Rear view of a riding mower according to an embodiment of the present invention (part 2) Rear view of the riding mower according to the embodiment of the present invention (No. 3) The partial perspective view of the link frame vicinity of the riding mower of the embodiment in the invention related to the present invention (A) Partial top view in the vicinity of the link frame of the riding mower according to the embodiment related to the present invention, (b) Partial front view in the vicinity of the link frame of the riding mower according to the embodiment related to the present invention. (C) Partial left side view of the vicinity of the link frame of the riding mower according to the embodiment related to the present invention The partial perspective view of the collector raising / lowering link mechanism, collector dump mechanism, and collector dump link mechanism vicinity of the riding mower according to the embodiment related to the present invention Partial perspective view of the collector lifting link mechanism and the vicinity of the collector dump link mechanism of the riding mower according to the embodiment related to the present invention (A) Partial top view in the vicinity of the collector bottom frame of the riding mower according to the embodiment of the present invention, (b) Partial front view in the vicinity of the collector bottom frame of the riding mower according to the embodiment of the present invention, (c) The partial left view of the collector bottom frame vicinity of the riding mower of embodiment in invention

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

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

  1 is a schematic left side view of the riding mower according to the embodiment of the present invention, FIG. 2 is a perspective view of the riding mower according to the embodiment of the present invention, and FIG. It is a rear view (the 1) of the riding mower of embodiment in.

  In FIG. 1, a state in which the collector 700 is at the uppermost position in the lifting operation and the dumping operation is indicated by a two-dot chain line.

  In FIG. 2, the mower 60 and the collector lifting mechanism 300 are not shown so that the configuration of the vehicle body 100 and the like can be more easily understood.

  The riding mower according to the present embodiment includes a mower 60, a blower 50, and a collector 700. The mower 60 is a unit having a mower deck 61 for mowing grass. The blower 50 is a unit for sucking the cut grass. The collector 700 is a unit for storing the sucked grass.

  At the front of the vehicle body 100 supported by the left front wheel 31L and the right front wheel 31R, and the left rear wheel 32L and the right rear wheel 32R, a control unit 40 for an operator to drive is provided. The steering unit 40 is provided with a steering handle 41 for an operator to perform steering. The control unit 40 is also provided with a seat 42, a seat belt 43, and the like that are seated when the operator performs control.

  The mower 60 is communicated with the blower 50 by a cut grass transport chute 51 for transporting the cut grass. The grass conveyed by the blower 50 is discharged into the collector 700 through the shooter 52.

  The power generated by the engine 20 is transmitted to the left rear wheel 32L and the right rear wheel 32R via an HST (Hydro Static Transmission) disposed on the upper side of the axle case of the left rear wheel 32L and the right rear wheel 32R. 13 is also transmitted to the blower 50 via a PTO (Power Take Off) clutch 21 disposed between the engine 20 and the blower 50 in the engine 13.

  The collector elevating mechanism 300 is a mechanism that performs the elevating operation of the collector 700 that accommodates grass cut by the mower 60 attached to the vehicle body 100.

  The collector dump mechanism 500 is a mechanism attached to the collector elevating link mechanism 400 that performs a dump operation of the collector 700.

  Next, the configuration and operation of the riding mower according to the present embodiment will be described more specifically with reference mainly to FIGS.

  4 and 5 are partial perspective views (part 1 and 2) in the vicinity of the collector lifting link mechanism 400 and the collector dump link mechanism 600 of the riding mower according to the embodiment of the present invention, and FIG. FIG. 7 is a partial left side view of the vicinity of the collector lifting link mechanism 400 and the collector dump link mechanism 600 of the riding mower according to the embodiment, and FIG. 7 is a partial perspective view of the vicinity of the collector bottom frame 720 of the riding mower according to the embodiment of the present invention. FIG.

  In FIG. 4, the collector lifting link mechanism 400 is viewed from above, and in FIG. 5, the collector lifting link mechanism 400 is viewed from below. In FIG. 5, the left dump link arm member 610L and the right link frame contact member 450R are not shown.

  The partition member 11 is a mesh-like member disposed behind the control unit 40, and the left column member 200 </ b> L and the right column member 200 </ b> R are disposed behind the partition member 11. The safety frame 12 is a U-shaped ROPS (Roll Over Protection Structure) frame that connects the upper end portion of the right column member 200R and the upper end portion of the right column member 200R.

  The collector main body 710 is a resin member for accommodating cut grass, which has a collector door 711 that is opened and closed.

  The left link fulcrum member 210L is attached to the upper part of the left column member 200L, and the left lifting cylinder fulcrum member 220L is attached to the lower part of the left column member 200L. The left lower link arm connecting member 421L is attached to the left lower link arm member 420L.

  The front end portion of the left upper link arm member 410L is rotatably attached to the upper portion of the left link fulcrum member 210L, and the front end portion of the left lower link arm member 420L is rotatably attached to the lower portion of the left link fulcrum member 210L. It has been.

  The front end portion of the left elevating cylinder member 310L is rotatably attached to the left elevating cylinder fulcrum member 220L, and the rear end portion of the left elevating cylinder member 310L is rotatably attached to the left lower link arm connecting member 421L. Yes.

  The right link fulcrum member 210R is attached to the upper part of the right column member 200R, and the right lifting cylinder fulcrum member 220R is attached to the lower part of the right column member 200R. The right lower link arm connecting member 421R is attached to the right lower link arm member 420R.

  The front end portion of the right upper link arm member 410R is rotatably attached to the upper portion of the right link fulcrum member 210R, and the front end portion of the right lower link arm member 420R is rotatably attached to the lower portion of the right link fulcrum member 210R. It has been.

  The front end of the right elevating cylinder member 310R is rotatably attached to the right elevating cylinder fulcrum member 220R, and the rear end of the right elevating cylinder member 310R is rotatably attached to the right lower link arm connecting member 421R. Yes.

  The left link frame fulcrum member 432L is attached to the left front end of the link frame main body 431 via the left link frame connection member 433L, and the right link frame fulcrum member 432R is linked to the link frame main body 431 via the right link frame connection member 433R. It is installed at the right front end.

  The rear end portion of the left upper link arm member 410L is pivotally attached to the upper portion of the left link frame fulcrum member 432L, and the rear end portion of the left lower link arm member 420L is pivotably attached to the left link frame fulcrum member 432L. Installed at the bottom of the.

  The rear end portion of the right upper link arm member 410R is pivotably attached to the upper portion of the right link frame fulcrum member 432R, and the rear end portion of the right lower link arm member 420R is pivotably attached to the right link frame fulcrum member 432R. Installed at the bottom of the.

  The left dump link fulcrum member 434L is attached to the left rear portion of the link frame main body 431, and the right dump link fulcrum member 434R is attached to the right rear portion of the link frame main body 431.

  The first left collector bottom frame connection member 721L is attached to the left rear portion of the collector bottom frame 720, and the first right collector bottom frame connection member 721R is attached to the right rear portion of the collector bottom frame 720.

  The front portion of the left dump link arm member 610L is attached to the right portion of the first left collector bottom frame connecting member 721L, and the rear end portion of the left dump link arm member 610L is turnable so that the left dump link fulcrum member 434L is rotatable. Installed on.

  The front portion of the right dump link arm member 610R is attached to the left portion of the first right collector bottom frame connecting member 721R, and the rear end portion of the right dump link arm member 610R is turnable so that the right dump link fulcrum member 434R is rotatable. Installed on.

  The second left collector bottom frame connection member 722L is attached to the left side of the first left collector bottom frame connection member 721L, and the second right collector bottom frame connection member 722R is the first right collector bottom frame connection member. It is attached to the right side of 721R.

  The front end portion of the left dump cylinder member 510L is rotatably attached to the right side portion of the left link frame fulcrum member 432L, and the rear end portion of the left dump cylinder member 510L is rotatably connected to the second left collector bottom frame. It is attached to the member 722L.

  The front end of the right dump cylinder member 510R is pivotally attached to the left side of the right link frame fulcrum member 432R, and the rear end of the right dump cylinder member 510R is pivotally connected to the second right collector bottom frame. It is attached to the member 722R.

  Next, the configuration and operation of the riding mower according to the present embodiment will be described more specifically with reference mainly to FIGS.

  FIG. 8 is a partial perspective view of the vicinity of the support base 110 of the riding mower according to the embodiment of the present invention. FIG. 9 is a partial perspective view of the vicinity of the link frame 430 of the riding mower according to the embodiment of the present invention. It is.

  The link frame 430 of the collector elevating link mechanism 400 is provided with a pair of a left link frame contact member 450L and a right link frame contact member 450R in the left-right direction of the vehicle body 100. The support base 110 of the vehicle body 100 is provided with a left support base support member 150L and a right support base support member 150R in a pair in the left-right direction.

  The left support base support member 150L and the right support base support member 150R are attached to the support base 110 by bolt fastening using selectable bolt holes of the support base 110, and unlike the welding specifications, the support base support member is attached. A support base bracket assembly specification that allows the height to be easily adjusted is adopted.

  As shown in FIGS. 10 and 11, the tail member 111 and the like may be removed when the mounting height of the support base receiving member is adjusted.

  10 and 11 are rear views (second and third) of the riding mower according to the embodiment of the present invention.

  10 shows a state in which the collector main body 710 is removed but the tail member 111 is attached. In FIG. 11, the collector main body 710 and the tail member 111 are both removed. It is shown.

  Therefore, the vertical adjustment of the mounting height of the support receiving member is easy without requiring ROPS frame adjustment and link adjustment.

  When the collector 700 is at the lowest position in the raising / lowering operation, the left support base receiving member 150L and the right support base receiving member 150R are higher than the lower surface of the square pipe of the link frame main body 431. The position of the collector 700 is not lowered too much, and the lift height of the collector 700 that gives the uppermost position in the raising / lowering operation of the collector 700 is sufficiently secured.

  The receiving surface 151L of the left support base receiving member 150L and the receiving surface 151R of the right support base receiving member 150R are inclined.

  The angle between the receiving surface 151L and the horizontal plane is 45 degrees, and the angle between the receiving surface 151R and the horizontal plane is 45 degrees.

  When the collector 700 is at the lowest position in the raising / lowering operation, the left link frame contact member 450L, so that the contact surface 451L of the left link frame contact member 450L contacts the reception surface 151L of the left support base support member 150L. The left support base receiving member 150L is disposed. When the collector 700 is at the lowest position in the raising / lowering operation, the right link frame abutting member 450R, so that the abutting surface 451R of the right link frame abutting member 450R abuts on the receiving surface 151R of the right support base receiving member 150R, The right support base receiving member 150R is disposed.

  Accordingly, since the angle between the receiving surface 151L and the horizontal plane is 45 degrees, the angle between the contact surface 451L and the horizontal plane is 45 degrees, and the angle between the receiving surface 151R and the horizontal plane is 45 degrees. Therefore, the angle between the contact surface 451R and the horizontal plane is 45 degrees.

  The receiving surface 151L of the left supporting base receiving member 150L is inclined so that the left side is lower than the right side with respect to the left and right direction, and the receiving surface 151R of the right supporting base receiving member 150R is lower than the left side with respect to the left and right direction. It is inclined to become.

  On the upper surface of the support base 110 that functions as a collector base frame, a left support base support member 150L and a right support base support member 150R that are symmetrical in the rear view are arranged in an inverted V shape. Accordingly, even if the lowering operation is performed in a state where the collector 700 is inclined with respect to the left-right direction, the misalignment is naturally corrected by the weight of the collector 700 and the like, and the collector 700 is inclined to the center of the vehicle body 100 at the lowest position. Not contained. Even if the adjustment of the collector lifting link mechanism 400 is slightly insufficient, an excessive load is not applied to the left support base receiving member 150L and the right support base receiving member 150R. There is almost no frame deformation or breakage.

  The receiving surface 151L of the left support base receiving member 150L is inclined so that the rear side is lower than the front side with respect to the front-rear direction of the vehicle body 100, and the receiving surface 151R of the right support base receiving member 150R is It is inclined to be lower than the front side.

  The descending operation of the collector 700 is performed not along a straight line but along an arc-shaped locus in the direction of the arrow X. Accordingly, since the receiving surfaces 151L and 151R are inclined so that the rear side is lower than the front side, the contact surfaces 451L and 451R firmly contact the receiving surfaces 151L and 151R from the rear, respectively.

  The collector bottom frame 720 of the collector 700 is provided with a pair of a left collector bottom frame contact member 750L and a right collector bottom frame contact member 750R in the left-right direction. The link frame 430 of the collector elevating link mechanism 400 is provided with a pair of a left link frame receiving member 460L and a right link frame receiving member 460R in the left-right direction.

  The receiving surface 461L of the left link frame receiving member 460L and the receiving surface 461R of the right link frame receiving member 460R are inclined.

  The angle between the receiving surface 461L and the horizontal plane is 45 degrees, and the angle between the receiving surface 461R and the horizontal plane is 45 degrees.

  When the collector 700 is at the lowest position in the dump operation, the left collector bottom frame abutting member so that the abutting surface 751L of the left collector bottom frame abutting member 750L abuts on the receiving surface 461L of the left link frame receiving member 460L. 750L and the left link frame receiving member 460L are arranged. When the collector 700 is at the lowest position in the dumping operation, the right collector bottom frame contact member so that the contact surface 751R of the right collector bottom frame contact member 750R contacts the reception surface 461R of the right link frame support member 460R. 750R and the right link frame receiving member 460R are arranged.

  Accordingly, since the angle between the receiving surface 461L and the horizontal plane is 45 degrees, the angle between the contact surface 751L and the horizontal plane is 45 degrees, and the angle between the receiving surface 461R and the horizontal plane is 45 degrees. Therefore, the angle between the contact surface 751R and the horizontal plane is 45 degrees.

  The receiving surface 461L of the left link frame receiving member 460L is inclined so that the right side is lower than the left side in the left-right direction, and the receiving surface 461R of the right link frame receiving member 460R is lower than the right side in the left-right direction. It is inclined to become.

  On the upper surface of the link frame 430, a left link frame receiving member 460L and a right link frame receiving member 460R that are symmetrical in the rear view are arranged in a V shape. Therefore, even when the dumping operation is performed in a state where the collector 700 is tilted with respect to the left-right direction, the misalignment is naturally corrected by the weight of the collector 700 and the like, and the collector 700 is located at the lowest position of the collector lifting link mechanism 400. Housed in the center without inclination. Even if the adjustment of the collector dump link mechanism 600 is slightly insufficient, an excessive load is not applied to the left link frame receiving member 460L and the right link frame receiving member 460R. There is almost no frame deformation or breakage.

  The receiving surface 461L of the left link frame receiving member 460L may be inclined so that the front side is lower than the rear side in the front-rear direction, and the receiving surface 461R of the right link frame receiving member 460R is the front side in the front-rear direction. You may incline so that it may become lower than a rear side.

  The dumping operation of the collector 700 is performed not along a straight line but along an arc-shaped locus in the direction of the arrow Y. Accordingly, the receiving surfaces 461L and 461R may be inclined so that the front side is lower than the rear side, and then the contact surfaces 751L and 751R firmly contact the receiving surfaces 461L and 461R, respectively, from the front.

  Next, components related to the left link frame fulcrum member 432L and the right link frame fulcrum member 432R will be specifically described.

  (A) The components related to the left link frame fulcrum member 432L and the right link frame fulcrum member 432R will be specifically described with reference mainly to FIGS.

  FIG. 12 is a partial perspective view of the vicinity of the link frame 430 of the riding mower according to the embodiment related to the present invention, and FIG. 13 (a) is the riding according to the embodiment related to the present invention. FIG. 13B is a partial top view in the vicinity of the link frame 430 of the mower, and FIG. 13B is a partial front view in the vicinity of the link frame 430 of the riding mower according to the embodiment related to the present invention. ) Is a partial left side view of the vicinity of the link frame 430 of the riding mower according to the embodiment related to the present invention.

  As described above, the front end portion of the left dump cylinder member 510L is rotatably attached to the right side portion of the left link frame fulcrum member 432L, and the front end portion of the right dump cylinder member 510R is turnable to the right link frame. It is attached to the left side of the fulcrum member 432R.

  That is, the left link frame fulcrum member 432L is used not only for the attachment of the left upper link arm member 410L and the left lower link arm member 420L, but also for the attachment of the left dump cylinder member 510L. This is used not only for the attachment of the right upper link arm member 410R and the right lower link arm member 420R but also for the attachment of the right dump cylinder member 510R.

  The cross-sectional shapes of the left link frame fulcrum member 432L and the right link frame fulcrum member 432R are U-shaped. And right dump cylinder fulcrum pin 511R, respectively, and are firmly attached.

  Therefore, a dedicated member for attaching and reinforcing the left dump cylinder member 510L and the right dump cylinder member 510R is unnecessary.

  Even if welding is performed on the left link frame fulcrum member 432L and the right link frame fulcrum member 432R that are U-shaped in cross-sectional view, the left dump cylinder fulcrum pin 511L and the right dump cylinder fulcrum pin 511R are caused by welding distortion. Since it functions as a reinforcing member for the left link frame fulcrum member 432L and the right link frame fulcrum member 432R that suppresses the opening of the U-shape, thermal deformation of the left link frame fulcrum member 432L, the right link frame fulcrum member 432R, and the like accompanying welding No correction is required.

  Further, the link frame 430 not only supports the collector 700 that is raised and lowered while accommodating grass, but also functions as a fulcrum for the dump cylinder member, so the number of parts is considerably reduced.

  (B) The components related to the left dump link fulcrum member 434L and the right dump link fulcrum member 434R will be specifically described with reference mainly to FIGS.

  FIG. 14 is a partial perspective view of the vicinity of the collector lifting link mechanism 400, the collector dump mechanism 500, and the collector dump link mechanism 600 of the riding mower according to the embodiment related to the present invention, and FIG. FIG. 16A is a partial perspective view of the vicinity of the collector lifting link mechanism 400 and the collector dump link mechanism 600 of the riding mower according to the embodiment related to the invention, and FIG. 16A is the collector of the riding mower according to the embodiment of the present invention. FIG. 16B is a partial top view of the vicinity of the bottom frame 720, FIG. 16B is a partial front view of the vicinity of the collector bottom frame 720 of the riding mower according to the embodiment of the present invention, and FIG. It is a partial left view of the collector bottom frame 720 vicinity of the riding mower of the form of.

  As described above, the left dump link fulcrum member 434L is attached to the left rear portion of the link frame main body 431, and the right dump link fulcrum member 434R is attached to the right rear portion of the link frame main body 431.

  The left dump link fulcrum member 434L and the right dump link fulcrum member 434R into which the left dump link arm fulcrum pin and the right dump link arm fulcrum pin are respectively inserted are not the bent corner pipe portion of the link frame main body 431 but the link. The frame body 431 is attached to a straight square pipe portion by welding.

  The upper surface of the bent corner pipe portion is provided with a lower slope on the inside compared to the outside so that the collector 700 does not swing on the link frame body 431 when the lowering operation is performed. A gap is likely to occur during welding, but such a slope is not provided on the upper surface of the straight square pipe portion.

  Therefore, since welding at a small gap is easily completed in a short time, it is not necessary to correct the thermal deformation of the link frame main body 431 and the like accompanying the welding of the left dump link fulcrum member 434L and the right dump link fulcrum member 434R. .

  The front portion of the left dump link arm member 610L is attached to the right portion of the first left collector bottom frame connection member 721L, and the front portion of the right dump link arm member 610R is the first right collector bottom frame connection member. The left dump cylinder member 510L and the right dump cylinder member 510R as well as the left dump link arm member 610L and the right dump link arm member 610R are attached to the inside of the collector lifting link mechanism 400. Yes.

  Accordingly, the left dump link arm member 610L and the right dump link arm member 610R are attached to the first left collector bottom frame connection member 721L and the right collector bottom frame connection member 721R, respectively, by bolt fastening using elongated bolt holes. Therefore, the component configuration is considerably simplified.

  (C) Although the left link frame contact member 450L and the right link frame contact member 450R, and the left support base receiving member 150L and the right support base receiving member 150R are not provided, the left collector bottom frame contact member 750L is not provided. Also, a riding mower according to an embodiment of the invention related to the present invention in which the right collector bottom frame contact member 750R, the left link frame receiving member 460L, and the right link frame receiving member 460R are provided is also conceivable.

  The riding mower according to the present invention can accommodate the collector without inclination in the center of the vehicle body at the lowest position, and is useful for the purpose of being used for a riding mower for performing mowing work.

DESCRIPTION OF SYMBOLS 11 Partition member 12 Safety frame 13 Bonnet 20 Engine 21 PTO clutch 31L Left front wheel 31R Right front wheel 32L Left rear wheel 32R Right rear wheel 40 Control part 41 Steering handle 42 Seat 43 Seat belt 50 Blower 51 Mowing conveyance chute 52 Shooter 60 Moer 61 Moer deck DESCRIPTION OF SYMBOLS 100 Car body 110 Support stand 111 Tail member 150L Left support stand receiving member 150R Right support stand receiving member 151L Reception surface 151R Reception surface 200L Left support member 200R Right support member 210L Left link support member 210R Right link support member 220L Left lift cylinder support member 220R Right lifting cylinder fulcrum member 300 Collector lifting mechanism 310L Left lifting cylinder member 310R Right lifting cylinder member 400 collector lifting link mechanism 410L left upper link arm member 410R right upper link arm member 420L left lower link arm member 420R right lower link arm member 421L left lower link arm connection member 421R right lower link arm connection member 430 link frame 431 link frame main body 432L Left link frame fulcrum member 432R Right link frame fulcrum member 433L Left link frame connection member 433R Right link frame connection member 434L Left dump link fulcrum member 434R Right dump link fulcrum member 450L Left link frame contact member 450R Right link frame contact member 451L Contact surface 451R Contact surface 460L Left link frame receiving member 460R Right Link frame receiving member 461L receiving surface 461R receiving surface 500 collector dump mechanism 510L left dump cylinder member 510R right dump cylinder member 511L left dump cylinder fulcrum pin 511R right dump cylinder fulcrum pin 600 collector dump link mechanism 610L left dump link arm member 610R right dump Link arm member 700 Collector 710 Collector body 711 Collector door 720 Collector bottom frame 721L First left collector bottom frame connecting member 721R First right collector bottom frame connecting member 722L Second left collector bottom frame connecting member 722R Second right side Collector bottom frame connecting member 750L Left collector bottom frame contact member 750R Right collector Bottom frame abutment member 751L abutment surface 751R abutment surface

Claims (4)

The car body,
Mower attached to the vehicle body to cut grass,
A collector containing the cut grass;
A collector elevating link mechanism for elevating the collector;
With
The link frame of the collector raising / lowering link mechanism is provided with a pair of a left link frame contact member and a right link frame contact member in the left-right direction of the vehicle body,
The support base of the vehicle body is provided with a pair of a left support base support member and a right support base support member in the left-right direction,
The left link frame contact member, so that the contact surface of the left link frame contact member contacts the receiving surface of the left support base when the collector is at the lowest position in the lifting operation; and The left support base receiving member is disposed,
The right link frame contact member so that the contact surface of the right link frame contact member contacts the receiving surface of the right support base receiving member when the collector is in the lowest position in the lifting operation; And the right support base receiving member is disposed,
The receiving surface of the left support base receiving member is inclined,
The riding mower according to claim 1, wherein the receiving surface of the right support base receiving member is inclined. The receiving surface of the left support base receiving member is inclined such that the left side is lower than the right side with respect to the left-right direction,
The riding mower according to claim 1, wherein the receiving surface of the right support base receiving member is inclined so that the right side is lower than the left side with respect to the left-right direction. The receiving surface of the left support base receiving member is inclined such that the rear side is lower than the front side with respect to the longitudinal direction of the vehicle body,
The riding mower according to claim 2, wherein the receiving surface of the right support base receiving member is inclined with respect to the front-rear direction so that a rear side is lower than a front side. A collector dump mechanism attached to the collector lifting link mechanism for performing the dump operation of the collector;
The collector bottom frame of the collector is provided with a pair of a left collector bottom frame contact member and a right collector bottom frame contact member in the left-right direction,
The link frame of the collector elevating link mechanism is provided with a pair of a left link frame receiving member and a right link frame receiving member in the left-right direction,
The left collector bottom frame abutting member so that the abutting surface of the left collector bottom frame abutting member abuts the receiving surface of the left link frame receiving member when the collector is at the lowest position in the dumping operation. , And the left link frame receiving member is disposed,
When the collector is at the lowest position in the dumping operation, the right collector bottom frame abutment so that the abutment surface of the right collector bottom frame abutment member abuts on the reception surface of the right link frame receiving member A member, and the right link frame receiving member are arranged,
The receiving surface of the left link frame receiving member is inclined,
The riding mower according to any one of claims 1 to 3, wherein the receiving surface of the right link frame receiving member is inclined.

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