JP2011177038A - Grass collector of lawn mower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grass collector of lawn mower, which transversely opens a collector to be attached to the rear of a vehicle body and improves maintainability such as cleaning, etc. <P>SOLUTION: In the lawn mower which is equipped with a duct 22 extended from a mower deck 13 backward and in which the rear end of the duct 22 is connected to the collector 16 attached to the rear of the vehicle body, a collector attaching frame 84 is fixed to the rear of the vehicle body, while a vertical spindle 80 for rotating a rotary frame 81 around a vertical central axis is arranged at one side of the collector attaching frame 84, and a rotation regulation means L for regulating the rotation of the rotary frame 81 is constituted between the collector attaching frame and the rotary frame 81 and at the opposite side of the vertical spindle 80. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a grass collecting apparatus for a lawn mower and improves the maintainability of cleaning and the like by configuring a collector attached to the rear part of a vehicle body to be laterally open.

  A collector that is supported so as to be able to open and close in the front-rear direction around the longitudinal axis with respect to the vehicle body, and that receives turfgrass collected from mowers mounted on the vehicle body, There is a configuration in which a transmission device interlocked with the power take-out device on the vehicle body side by closed rotation and a suction fan that sucks and accommodates turf grass by transmission of the transmission device in communication with the mower side shooter (for example, , See Patent Document 1).

JP 05-038219 A

  By the way, in order to mount the collector, the mounting shaft of the collector frame is fitted and supported on the support boss of the connecting frame on the vehicle body side, and the engaging portion of the collector frame is pushed into the engaging portion of the connecting frame to be engaged. Therefore, the collector is likely to become unstable because the mounting state is maintained and the duct at the tip of the shooter is connected to the suction port of the fan case provided integrally with the collector.

  The present invention has taken the following technical means in order to solve the above technical problems.

  That is, the invention described in claim 1 is a lawn mower in which a duct 22 extending rearward from the mower deck 13 is provided and the rear end of the duct 22 is connected to a collector 16 attached to the rear part of the vehicle body. 84 is fixed, and a vertical support shaft 80 is provided on one side of the collector mounting frame 84 to rotate the rotating frame 81 around the vertical axis P, and between the collector mounting frame and the rotating frame 81. A rotation restricting means L for restricting the rotation of the rotation frame 81 is formed on the opposite side to the vertical support shafts 80 and 80.

  If comprised in this way, the longitudinal support shafts 80 and 80 used as a rotation support shaft will be provided in one side of the collector attachment frame 84, the rotation frame 81 will be mounted | worn, and between the rotation frame 81 and the collector attachment frame 84 will be provided. Since the rotation restricting means L is provided, a maintenance operation such as cleaning the inside of the duct 22 can be easily performed by rotating the rotation frame 81 to widely open the rear of the vehicle body 1.

  According to a second aspect of the present invention, in the first aspect, the reversing lever 69 for raising and lowering the collector 16 about the reversing support shaft 65 is supported by a bracket member 89 provided on one side of the rotating frame 81. If comprised in this way, the collector 16 can be reversely rotated with respect to the rotation frame 81.

  According to a third aspect of the present invention, in the first aspect, the cleaner plate 87 provided on the bottom portion of the duct 22 is linked to the one side of the collector mounting frame 84 via the link mechanism 88 to change to a standing posture. A cleaner lever 86 is provided for transferring turf grass accumulated in the collector 16 into the collector 16, and the reversing lever 69 is provided on the rotation frame 81 side on the other side opposite to the cleaner lever 86. If comprised in this way, the reversing lever 69 will be open | released with the rotation frame 81 integrally with the collector 16, and the maintenance of a duct rear end will become still easier.

  According to a fourth aspect of the present invention, in the first aspect, the collector 16 is reversed by the telescopic cylinder mechanism 100, and the telescopic cylinder mechanism 100 is disposed on the side where the longitudinal support shaft 80 exists. With this configuration, when the hydraulic piping and harnesses are routed to the telescopic cylinder mechanism 100, the other side moves greatly due to lateral rotation, but the vertical support shaft 80 side hardly moves. The margin for rotation can be reduced, and troubles in wiring during rotation can be solved.

  According to the first aspect of the present invention, the longitudinal support shafts 80, 80 serving as the rotation support shafts are provided on one side of the collector mounting frame 84, the rotation frame 81 is mounted, and the rotation frame 81 and the collector mounting frame 84 are Since the rotation restricting means L is provided in between, the cleaning operation in the duct 22 can be easily performed by rotating the rotation frame 81 to widely open the rear of the vehicle body 1.

  According to the second aspect of the present invention, the collector 16 can be reversed and rotated with respect to the rotation frame 81, and the collector 16 portion that is reversed to leave the rotation frame 81 is not bulky.

  According to the third aspect of the present invention, the reverse lever 69 is opened together with the collector 16 together with the rotating frame 81, so that the maintenance of the rear end of the duct becomes easier.

  In the invention according to claim 4, when the hydraulic piping and harnesses are routed to the telescopic cylinder mechanism 100, the other side largely moves due to the lateral rotation, but the vertical support shaft 80 side hardly moves, so the hydraulic piping, The margin for turning the harnesses can be reduced, and troubles can be prevented when handling the installed hydraulic piping and harnesses.

Overall side view. Overall plan view. A partial enlarged side view. A partial enlarged plan view. The rear view of a rear axle housing part. Perspective view of front support frame The expansion | deployment perspective view (A) of the principal part, and the partial side view (B). The collector part side view (A) of another Example, and a top view (B). Side views (A) and (B) showing an improved example of the reversing lever. Side views (A) and (B) showing further improvements of the reversing lever. Side views (A) and (B) showing an improved example of the locking mechanism. Side views (A) and (B) showing different examples of collector reversing means. The side view which shows the example of a collector raising assistance means. The side view which shows the other example of a collector raising assistance means. The side view (A) which shows the further another example of a collector raising assistance means, and sectional drawing (B).

  Embodiments of the present invention will be described with reference to the drawings.

  A front axle 24 having a pair of left and right front wheels 23, 23 is swingably supported around the center pivot 25 on the lower front side of the vehicle body 1, and a rear axle housing 4 having a pair of left and right rear wheels 26 on the lower rear side. To support. By driving and rotating the engine shaft 3 of the engine 27 mounted on the front end of the vehicle body 1, the main transmission shaft 6 connected to the rear side of the engine shaft 3 is transmitted to drive the rear wheel 26 in conjunction with driving. it can. The engine shaft 3 is provided at the center in the left-right width direction at the lower part of the engine body and along the upper part of the center line L along the front-rear direction of the center part of the vehicle body 1 width. A flywheel 28 is attached to the front end portion of the engine shaft 3, a radiator 29, a radiator fan 30, etc. are disposed on the rear side of the engine 27, and the upper portion is covered with a bonnet 31, and an oil tank 32 is disposed on the rear side thereof. The steering wheel 34 is provided on the steering post 33, and the front wheel 23 is steered and linked.

  The rear axle housing 4 forms a differential case 35 in which a rear wheel differential gear mechanism is housed at a position on the left side of the tread with respect to the center line L, and an HST (hydraulic continuously variable transmission) case 8 is provided on the side of the differential case 35. The HST input shaft 9 is protruded directly upward from the case 8 so that the pulley 36, the cooling fan 37, and the like are integrally rotated, and the HST control trunnion is provided on the rear side of the HST input shaft 9. A shaft mechanism 38 is disposed.

  A rear wheel 26 is mounted on both ends of the rear axle 39 in the rear axle housing 4. A connecting frame 41 connects between the left and right sides of the rear axle housing 4 and an upper end of the rear bracket 40, a fuel tank 42 for the engine 27 is mounted on the upper side of the connecting frame 41, and a seat 43 on the upper side. Is provided.

  Further, a step floor 2 is laid on the upper side of the vehicle body 1 and the main transmission shaft 6, and a seat floor 44 bent upward is connected to the rear portion of the step floor 2, and the rear end portion is connected to the connecting frame. The fender 45 is formed on both the left and right sides.

  Here, the transmission device for the mid mower to be mounted on the vehicle body 1 is located on the rear side of the vehicle body 1 from the front mounted engine shaft 3 on the rear axle housing 4 along the front and rear direction below the step floor 2 of the vehicle body 1. A main transmission shaft 6 extending over the rear case 5 is provided, and a belt 10 is engaged between the rear output shaft 7 hanging from the rear case 5 and the input shaft 9 on the HST case 8 disposed on the rear side of the rear axle housing 14. In addition, a belt 12 is coupled between the rear intermediate portion of the main transmission shaft 6 and the PTO shaft 11 of the bearing on the front side of the rear axle housing 4 so that the input shaft on the blade shaft 14 on the same side of the midmower deck 13 is coupled. 15 is a configuration of a moor gearing device that interlocks.

  The main transmission shaft 6 is composed of a transmission shaft 6a in the form of a universal joint shaft in the first half, and a latter half transmission shaft 6b directly connected thereto by spline fitting, and a pulley 53 described later is provided at the front of the latter half transmission shaft 6b. Is fixed, the rear end is extended into the rear case 5 and the bevel gear is mounted.

  Thus, the rotation of the engine shaft 3 causes the rear output shaft 7 of the rear case 5 to interlock with the rear end of the engine shaft 3 via the main transmission shaft 6 connected thereto. From the middle part of the main transmission shaft 6, the input shaft 15 of the mower deck 13 is transmitted via the belt 12, and from the rear output shaft 7 the input shaft 9 of the HST case 8 at the rear of the rear axle housing 4 is transmitted via the belt 10. .

  Further, a recess 18 for fitting the rear case 5 close is formed in a front support frame 17 that forms a front wall of a collector 16 that is attached to the rear end of the vehicle body 1 and accommodates turfgrass fed from the mower deck 13. ing. Specifically, as shown in the figure, the rear end of the duct 22 is fitted on the right side of the L-shaped opening 17a formed in the front support frame 17 to form a supply port 21, and on the left side of the L-shaped opening 17a. The bulged lid 17b is detachably attached with bolts 17c, 17c... And the concave portion 18 is formed in the space behind 17a by the attachment of the lid 17b. When the collector 16 is attached to the rear end portion of the vehicle body 1, the concave portion 18 formed in the front support frame 17 of the front wall portion of the collector 16 is fitted around the rear case 5 at the rear portion of the vehicle body 1. The input shaft 9 of the HST case 8 disposed at the rear portion of the rear axle housing 4 is transmitted from the rear output shaft 7 of the rear case 5 to the belt 10. The turfgrass carried into the collector 16 from the mower deck 13 is supplied from a supply port (the right half of the L-shaped opening 17a) formed on the side of the concave portion 18 of the front support frame 17.

  Furthermore, a duct 22 communicating between the discharge port 20 of the mower deck 12 and the supply port 21 of the rear collector 16 is provided at a position closer to one side with respect to the center line L of the vehicle body 1, and The interlocking main transmission shaft 6 extending from the engine shaft 3 to the rear case 5 and the interlocking mower transmission shaft 19 extending from the PTO shaft 11 to the input shaft 15 on the front mower deck 13 are located at positions opposite to the duct 22 side. It is characterized by arranging. The driving rotation of the front engine shaft 3 is transmitted through the main transmission shaft 6 biased to one side of the center line L of the vehicle body 1, the rear output shaft 7, the belt 10, etc. at the rear end, and the HST input shaft 9. The PTO shaft 11 is transmitted from the middle portion of the main transmission shaft 6 to the belt 12. Specifically, a tension clutch pulley is provided on the front portion of the latter half transmission shaft 6b and the belt 12 to constitute a PTO clutch K.

  Turf grass cut by the mower deck 13 is carried into the collector 16 through the duct 22 disposed on the opposite side of the mower transmission shaft 19 and the like connected to the front side of the main transmission shaft 6 and the PTO shaft 11 from the discharge port 20. .

  The rear case 5 of the input shaft 48 that connects the rear end of the main transmission shaft 6 is attached to and supported by the connection brackets 46 and 47 that are connected to the rear bracket 40, and the middle portion of the main transmission shaft 6 is supported by the metal. 49 is attached and supported. The main transmission shaft 6 is constructed by connecting a plurality of main transmission shafts 6 to the rear end of the engine shaft 3 through universal joints, expansion shaft joints, and the like, and is disposed with a deviation from the center line L toward the left side. The rear end is connected to the input shaft 48 of the rear case 5.

  The rear case 5 is provided with an interlocking vertical rear output shaft 7 via a bevel gear, and is protruded downward to fix the pulley 50. The pulley 50 is disposed at the same height position on the rear side of the pulley 36 of the input shaft 9 of the HST, and is transmitted across the belt 10. The PTO shaft 11 is supported by a metal 51 protruding from the left end front portion of the rear axle housing 4. The belt 12 is stretched between a pulley 52 fixed to the lower PTO shaft 11 and a fixed pulley 53 to the upper main transmission shaft 6 to transmit and rotate the PTO shaft 11. The PTO shaft 11 is provided at the lower left outer side with respect to the upper main transmission shaft 6, and is disposed so as to be opposed to a substantially immediately rear portion of the input shaft 15 on the front moor deck 14.

  The mower deck 13 is a mid-mount configuration that is mounted on the abdomen of the vehicle body 1 and is biased to the left and right sides with respect to the center line L, and a pair of left and right blade shafts 14 are mounted on the lower end of each blade shaft 14. It has a blade 54 for cutting turfgrass. The mower deck 13 has gauge wheels 55 and 56 arranged at the front and rear lower ends, and a discharge cylinder 77 for guiding the cut grass to the discharge port 20 at the center rear is formed at the upper center. The mower deck 13 has a pair of left and right parallel front links 57 and a rear link 58 arranged on the upper part, and is suspended from the vehicle body 1 and is moved up and down while maintaining a horizontal state by a lift mechanism. . Also, blade cases 59 and 60 are provided on the upper part of the left and right blade shafts 14 on the mower deck 13, and the input shaft 15 is pivotally supported on the left blade case 59. 14 is engaged.

  The input shaft 15 can be coupled and transmitted between the rear PTO shaft 11 via a mower transmission shaft 61, a universal joint, an expansion shaft joint, and the like. A blade transmission shaft 62 extending between the blade cases 59 and 60 is provided between the left and right blade shafts 14 so as to be interlocked with each other by a bevel gear, and the left and right blade shafts 14 are configured to rotate from the front side toward the inner rear side.

  The collector 16 is attached to the rear end of the vehicle body. A mounting frame 63 detachably attached to the rear end of the vehicle body 1 is formed to surround the supply port 21 at the rear end of the duct 22 and the outer periphery of the rear case 5 and the like, and is supported along the mounting frame 63 in front. Install the frame 17. Then, the supply port 21, the recess 18, and the like are formed in the front support frame 17. Further, a support arm 64 is protruded from the rear upper part of the mounting frame 63, and a collector bag 66 or a collector case that is supported so as to be pivotable to the rear upper part around the reversing support shaft 65 is attached.

  The collector bag 66 can be closed by forming a bag port 67 on the front surface and contacting the rear surface of the front support frame 17. The discharge port 20 of the mower deck 13 and the supply port 21 formed on the right side of the front support frame 17 are connected by a duct 22 passing through the upper right side of the rear axle housing 4 and discharged from the discharge port 20. The turfgrass is conveyed and guided into the collector bag 66 from the supply port 21. The collector bag 66 is formed by forming a bag frame 68 along the outer peripheral corner portion, and covering the outer periphery of the bag frame 68 with a wind cloth, and closing the bag port 67 in contact with the front support frame 17. In this state, the conveying wind can be discharged from the mesh portion of the net cloth to accommodate the imported turf grass. Further, the accommodation turfgrass accommodates the bag mouth 67 opened downward by operating the handle lever 69 protruding above the collector bag 66 and rotating it around the reversal support shaft 65 upward. Turf grass can be dropped and discharged. A cover 70 covers the upper side of the collector bag 66.

  Since the turfgrass carried into the collector bag 66 from the supply port 21 with the collector bag 66 in the turfgrass accommodation posture position is partitioned by the concave portion 18 surface of the front support frame 17, the rear case 5 part on the front side of the concave portion 18. There is no leaking contact of turfgrass etc. to prevent direct dust scattering. The concave portion 18 of the front support frame 17 is configured to widely cover the rear case 5 and the lower pulley 50 by fitting. Then, by fitting as deeply as possible, the collector 16 can be brought close to the vehicle body 1 and the backward protrusion of the collector 16 can be reduced. Further, the upper side surface 71 of the recess 18 in the collector bag 66 can be formed as a downwardly inclined surface so that there is no residual turfgrass during the discharging operation.

  The collector 16 is provided in a rotation frame 81 configured to rotate in the horizontal direction around the longitudinal support shafts 80, 80 with respect to the front support frame 17. That is, the rear frame 82 of the reinforcing structure is attached to the rear portion of the vehicle body 1, and the rear frame 82 is provided in an inclined posture in which the upper side is slightly displaced forward from the lower side in a side view, and the left and right main frames 83, 83 is detachably provided. Then, the collector mounting frame 84 is mounted along the rear frame 82. On one side of the collector mounting frame 84, support cylinders 80a and 80a are provided in two upper and lower stages so that the vertical support shafts 80 and 80 can be penetrated and supported. Thus, the rotation frame 81 can be rotated around the common axis P of the upper and lower vertical support shafts 80 and 80. In addition, the base of the support arm 67 is fixed to the rotating frame 81 and the bag frame 68 is mounted.

  A rotation restricting means L is provided between the collector mounting frame 84 and the rotation frame 81 and on the side opposite to the longitudinal support shaft 80. The rotation restricting means L is provided with restriction plates 84a and 84a on the collector mounting frame 84 side and restriction plates 81a and 81a on the rotation frame 81 side so as to be superposed in an approaching state, and penetrates from above in this superposed state. By engaging the lock rod 85 with both restriction plates 81a and 84a, the rotation frame 81 is locked from rotating around the longitudinal support shaft 80.

  The rotating frame 81 is provided with a rectangular opening 81a facing the rear end of the duct 22 to the collector 61. When the rotating frame 81 approaches the vertical support shaft 80, the rear of the duct 22 in the opening 81a is provided. When the end portion is inserted and turned away, the rear end portion of the duct 22 is separated from the opening portion 81a.

  Thus, the vertical support shaft 80 serving as a rotation support shaft is provided on one side of the collector mounting frame 84, the rotation frame 81 is mounted, and the rotation restricting means is provided between the rotation frame 81 and the collector mounting frame 84. Since it is the structure which provides L, the cleaning operation in the duct 22 can be easily performed by rotating the rotation frame 81 and widely opening the rear of the vehicle body 1.

  Reference numeral 86 denotes a cleaner lever that shifts the turfgrass accumulated in the bottom portion into the collector 16 by moving the cleaner plate 87 provided at the bottom portion of the duct 22 into a standing posture by interlocking with the link mechanism 88, and its rotation support shaft. The portion 86a is configured to be attached to the upper frame portion of the collector mounting frame 84 via a bracket.

  A reversing lever 69 that moves the collector 16 up and down around the reversing support shaft 65 is provided on a bracket member 89 provided on one side of the rotation frame 81. Reference numeral 90 denotes a damper 16 ascending assist damper that is interposed between a rotating member integral with the reversing support shaft 65 and the rotating frame 81.

  As described above, the cleaner lever 86 is provided on one side (left side in the illustrated example) of the collector mounting frame 84, and the reversing lever is provided on the side opposite to the cleaner lever 86 (on the right side) on the rotating frame 81 side. By providing 69, the reversing lever 69 is opened together with the rotating frame 81 integrally with the collector 16, and the maintenance of the rear end of the duct becomes easy.

  The configuration shown in FIG. 8 shows an alternative configuration of the rotation restricting means L, a U-shaped fixing fitting 93 on the side opposite to the longitudinal support shaft 80, and a long leg side 93a on the body 1 frame via a spring 94. It is slidably mounted in the longitudinal direction, and the short side 93b of the leg is engaged with or disengaged from a locking recess 81c formed in the rotating frame 81 to be locked or unlocked.

  With the rotation restricting means configured as described above, the rotation frame 81 can be rotated by gripping the connecting portion 93c of the fixing metal 93 and pulling it against the spring 94, and when the hand is released, the spring is released. Since the rotation is regulated by matching and engaging with the locking recess 81c by 94, the operation is easy.

  The configuration shown in FIG. 9 relates to an improvement of the reversing lever 69. The holding insertion holes 64a and 64a are formed at a vertical interval with respect to the support arm 64 integral with the rotation frame 81, and the gripping part can be pulled up when performing a reversing operation. The reversing lever 69 is divided into upper and lower parts, the upper part 69a can be pulled out with respect to the lower part 69b, and the upper part 69a is removed from the lower part 69b. Therefore, there is no reversing lever 69 penetrating the side portion of the cover 70, and there is an effect that there is no problem in opening and closing the cover 70.

  In addition, as shown in FIG. 10, the reversing lever 69 is divided into upper and lower parts, and the upper part 69d is pushed down with respect to the lower part 69c so that the double structure is housed, and the upper part 69d is pulled up to be in the extended state. Inversion operation can be performed. Even with this configuration, the reversing lever 69 penetrating the side portion of the cover 70 can be opened upward without obstruction. 9 and 10, the bag frame 68 can be removed without any overhang while the reversing lever 69 is stored below the top of the collector.

  Reference numeral 95 denotes a lock mechanism for restricting the raising of the collector 16, and the hook 96 provided on the rotating frame 81 is engaged with and disengaged from the lock pin 97 on the bag frame 68 side to switch between the locked state and the unlocked state. The operation of the hook 96 may be performed manually or linked to the operation of the reversing lever 69.

  FIG. 11 shows an example of improvement when the right and left lock mechanisms are configured. In order to provide a connecting rod 98 for connecting the left and right hooks 96L, 96R, the connecting rod 98 bypasses the lower side of the bag frame 68 of the collector 16. It is structured to interlock. With such a configuration, since the lower part of the bag frame 68 is bypassed, when the rotating frame 81 rotates around the longitudinal support shaft 80, the connecting rod 98 can be rotated together with the connecting frame 98. This can be done quickly without the need to attach and detach the connecting rod 98 during rotation.

  In FIG. 11, instead of the reversing lever 69, the collector 16 is reversed by the telescopic cylinder mechanism 100. The telescopic cylinder mechanism 100 is a hydraulic cylinder mechanism, an electric cylinder mechanism, or the like, but the piston 100a side is connected to the bag frame 68 and the cylinder 100b base side is connected to a member integrated with the rotation frame 81. Therefore, the collector 16 is placed in the inverted posture by the extension operation of the telescopic cylinder mechanism 100. Further, the working state can be restored by the shortening side operation of the telescopic cylinder mechanism 100. The expansion / contraction operation of the expansion / contraction cylinder mechanism 100 is performed by a switch (not shown) on the top surface of the fender.

  The telescopic cylinder mechanism 100 may be provided on both the left and right sides as shown in FIG. In this case, the telescopic cylinder mechanism 100 is disposed on one side where the vertical support shaft 80 exists (the left side in the traveling direction in the illustrated example). With this configuration, when the hydraulic piping and harnesses are routed to the telescopic cylinder mechanism 100, the other side moves greatly by lateral rotation, but the vertical support shaft 80 side hardly moves. The margin of the class can be reduced, and the trouble on the wiring at the time of rotation can be solved (FIG. 12).

  FIGS. 13 to 15 show that the bag frame 68 of the collector 16 is further raised to facilitate maintenance from the rear during reverse rotation, and the configuration of FIG. 13 holds the bag frame 68 in a reverse posture. The adjustment lever 101 is provided at the lower end of the damper 90 attached to the rotating frame 81 to constitute the height changing means M. That is, the lower end of the damper 90 is pivotally attached to the adjustment lever 101 that can be pivoted up and down around the pivot center on the pivot frame 81 side. The adjustment lever 101 includes an intermediate pin insertion hole 102 and is configured to be able to change the vertical position by engagement with the plurality of adjustment holes of the pivot frame 81 side bracket 103. For this reason, normal reversal and return operations are performed at the standard position, and when the bag frame 68 is reversed, the engagement position of the adjustment lever 101 is raised and fixed, thereby raising the height h in FIG. As a result, the overall height at the time of reversal can be raised from h1 to h2, and maintenance from the rear is facilitated.

  FIG. 14 shows another configuration of the height changing means M. That is, the refracting link 104 is formed on the lower end side mounting base of the damper 90, and at the pivot point of the refracting link 104 with the lower end of the damper 90, the pivot 90 is guided back and forth so that the damper 90 and the refracting link 104 are connected. The cam member 105 is provided so as to be substantially straight (b) beyond the fulcrum from the refraction posture (b). Reference numeral 106 denotes a fulcrum spring. Usually, it is set to a refraction posture (A), and at the time of inversion, the damper 90 itself is changed from a rear to a front to change it into a straight line (B). In this way, an additional height h can be ensured. In the case of this example, the refraction posture (A) can be easily changed to a substantially straight line (B) by manual operation.

  In FIG. 15, the upper side of the damper 90 is improved. That is, the damper 90 and the upper refracting link 107 are configured in a refracting state or a substantially straight state. One end of the refracting link 107 is pivotally attached to a bracket 108 integral with the bag frame 68, and the other end is pivotally connected to the upper end of the damper 90 so as to be rotatable. In addition, a locking pin 110 urged by a spring 109 is provided at an intermediate portion of the refraction link 107, and the refraction link 107 is attached to the damper 90 by being engaged with and disengaged from the plurality of engagement holes provided in the bracket 108. On the other hand, the configuration is switched between a standard state where the light is refracted and a developed state which is substantially linear.

  Therefore, the additional height h can be secured by reversing or returning by the reversing lever 69 in the standard state and by developing in the reversed state. In this configuration, since it is configured on the upper portion of the damper 90, it is easy to attach and detach the locking pin 110 of the refractive link 107.

13 Moore deck 16 Collector 22 Duct 65 Reverse support shaft 69 Reverse lever 80 Vertical support shaft 81 Rotating frame 84 Collector mounting frame 86 Cleaner lever 87 Cleaner plate 88 Link mechanism 89 Bracket member 100 Telescopic cylinder mechanism

Claims (4)

  In a lawn mower having a duct (22) extending rearward from the mower deck (13) and connecting the rear end of the duct (22) to a collector (16) mounted on the rear of the vehicle body, a collector mounting frame (84) is mounted on the rear of the vehicle body. Is provided on one side of the collector mounting frame (84) with vertical support shafts (80, 80) for rotating the rotating frame (81) about the longitudinal axis (P), and the collector mounting frame (84). ) And the rotation frame (81), and a rotation restricting means (L) for restricting the rotation of the rotation frame (81) on the opposite side of the longitudinal support shaft (80, 80). A grass mower collecting apparatus characterized by the above.   The lawn mower according to claim 1, wherein a reversing lever (69) for raising and lowering the collector (16) about the reversing support shaft (65) is supported by a bracket member (89) provided on one side of the rotating frame (81). Grass collecting device.   On one side of the collector mounting frame (84), the cleaner plate (87) provided at the bottom of the duct (22) is interlocked via the link mechanism (88) so that the turfgrass collected at the bottom is changed to the standing posture. 16) A cleaner lever (86) to be moved in is provided, and the reversing lever (69) is provided on the side opposite to the cleaner lever (86) on the rotating frame (81) side. A lawn mower collecting device as described.   The lawn mower according to claim 1, wherein the telescopic cylinder mechanism (100) is configured to invert the collector (16), and the telescopic cylinder mechanism (100) is disposed on a side where the longitudinal support shaft (80) exists. Grass collector.

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