JP2010154814A - Mower collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate troublesome operation for separately operating a dumping operation of a collector and a lock releasing operation of a housed position of the collector without using a complicate construction. <P>SOLUTION: A dump lever 3 for performing the dumping operation by vertically shifting the lever along a direction of the lever body is placed on the collector 2 able to be dumped to a vehicle body 1. A locking mechanism 4 enables dump rotation by pulling out the dumper lever 3 to release the lock of the collector 2 and stands by for the following locking operation. In the case of performing dumping operation of the collector 2, the locking mechanism 4 is actuated by pulling and extending the dump lever 3 upward to release the lock of the housing position of the collector 2 to enable dumping operation of the collector 2, and the locking mechanism 4 takes the standby state for the following locking action. The stored lawn is dumped to the mowed ground surface, etc, by turning the collector in a state of extracting the dump lever 3 and dumping the collector 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mower collector that dumps and discharges a collector that houses turf grass cut by mower.

There is known a technique (for example, see Patent Document 1) in which an unlock lever for unlocking the collector housing position and an operation lever for performing a dump operation of the collector are provided.
Japanese Patent Laying-Open No. 2006-6207 (page 6, FIG. 7).

  The configuration in which the dumping operation of the collector and the unlocking operation of the storage position of the collector are separately operated are both complicated in configuration and operation.

  The invention according to claim 1 is provided with a dump operation lever (3) for performing a dump operation on the collector (2) capable of dumping with respect to the vehicle body (1), and lifting the dump operation lever (3) in the longitudinal direction of the lever. Then, the mower collector is provided with a lock mechanism (4) that unlocks the work position of the collector (2) and enables the collector (2) to be dumped to the discharge position.

    The collector (2) mounted on the vehicle body receives and accommodates turfgrass harvested by the mower. When this collector (2) is dumped, the dumping lever (3) is pulled up in the longitudinal direction of the lever to activate the lock mechanism (4) and lock the working position of the collector (2). The collector (2) is brought into a state where dump operation is possible.

Then, by performing a dumping operation with the dumping operation lever (3) pulled up, the collector (2) can be dumped and the stored turfgrass can be discharged to the cut ground or the like.
The invention according to claim 2 is provided with a dump operation lever (3) for performing a dump operation of the collector (2) capable of dumping with respect to the vehicle body (1), and a dump operation lever ( 3) an engagement lever (5) that engages and rotates with an engagement ring (40) formed in 3), a swingable swing arm (6) that is connected to the engagement lever (5), and a swing A link rod (7) coupled to the arm (6) and a lock hook (9) coupled to the link rod (7) and engaged with the lock pin (8) are provided to swing with the engagement lever (5). The arm (6), the link rod (7), and the lock hook (9) are linked to each other by a link operation. When the dump operation lever (3) is pulled up in the longitudinal direction of the lever, it engages with the engagement ring (40). The lever (5) engages to perform the link operation. There was a lock mechanism (4) that moved the unlocked hook (9) to the unlocked position, unlocked the work position of the collector (2), and allowed the dumping operation to the discharge position of the collector (2) It is characterized by.

    By pulling up the dump control lever (3), the engagement lever (5), the swing arm (6), the link rod (7), and the lock hook (9) are linked together and the lock hook (9) is unlocked. Move to the position, unlock the collector (2), and allow the collector (2) to rotate the dump.

    In the invention described in claim 3, in the invention described in claim 2, when the collector (2) is rotated from the discharge position to the work position, the dump operation lever (3) is moved downward by its own weight, and the engagement ring ( 40) and the engagement lever (5) are disengaged, the lock hook (9) is moved from the unlocked position to the locked position.

  According to the first and second aspects of the present invention, the locked state of the collector (2) can be released via the lock mechanism (4) by pulling up the dump operation lever (3). Since the dumping operation is performed while holding the dumping operation lever (3), it is possible to perform unlocking and dumping operation while holding the single dumping operation lever (3) without changing the lever operation. The dump operation can be performed easily and quickly. Further, since the dump operation lever (3) needs to be lifted by unlocking, it is possible to prevent the lock from being accidentally unlocked during the lawn mowing work.

  According to the second aspect of the present invention, the lock mechanism 4 includes an engagement lever 5 that rotates with respect to the swing arm 6, and a lock hook 9 that is connected to the swing arm 6 and the link rod 7. Since it rotates, the lock operation of the lock hook 9 and the lock standby lock release operation can be performed accurately, and the configuration can be simplified.

    According to the third aspect of the present invention, when the collector 2 is returned from the discharge position to the work position, the dump operation lever 3 moves by its own weight and the lock hook 9 moves to the lock position. .

  Embodiments of the present invention will be described with reference to the drawings. In the figure, the mower deck 14 is in the form of a mid mower in which the abdomen of the tractor vehicle body 1 is mounted, and a grass outlet 15 is formed at the center rear side of the mower deck 14. The grass collection port 15 communicates with the collector 2 attached to the rear frame 18 at the rear end of the vehicle body 1 through a duct 17 between the left and right rear wheels 16. The vehicle body 1 includes a front wheel 19, a rear wheel 16, a steering wheel 20 that steers the front wheel 19, a driver's seat 21, an engine 22, a floor 23, and the like. A power take-out shaft 24 for taking out the heat is provided. The power of the power take-off shaft 24 is transmitted to the input shaft 26 of the mower deck 14 via the belt 25, and is transmitted from the input shaft 26 to the blade shafts 27 provided on the left and right sides of the mower deck 14 so that the blade 28 rotates about the vertical axis. Then cut grass.

In addition, the traveling transmission shaft 70 is connected to the rear portion of the power take-off shaft 24 and the rear wheels 16 are driven through the transmission case 71 and the hydraulic continuously variable transmission 72.
The collector 2 is mounted on the rear frame 18 at the rear end of the vehicle body 1 via the mounting bracket 11. The mounting bracket 11 supports the hook plate 12 so as to be rotatable around the dump shaft 29. The collector 2 is formed in a box shape by surrounding the net frame 30 with an air-permeable net N, and has an opening G formed on the front side thereof and communicated with a duct port 17 a at the end of the duct 17. The turfgrass can be collected by generating air by the rotation of the blade 28, receiving and storing the turfgrass carried from the duct 17 and exhausting the turfgrass from the ventilation net N.

  A dump operation lever 3 for dumping the collector 2 is provided on one side of the front side of the collector 2 capable of dumping with respect to the vehicle body 1. The dump operation lever 3 is in a vertically long position when the collector 2 is in the working position, is supported by a pair of upper and lower lever supports 39, 39 formed on the bracket 11, and is slidable in the longitudinal direction of the lever. When the operator operates, the upper part of the dump operation lever 3 is grasped and operated.

Between the lower side of the dump operation lever 3 and the rear frame 18, a lock mechanism 4 that restricts or releases the rotation of the collector 2 around the dump shaft 18 is configured.
Specifically, first, when the dump operation lever 3 is lifted upward from the initial position, the lock mechanism 4 is activated to unlock the work position of the collector 2 so that the collector 2 can be dumped. To do. Next, by performing a dump turning operation in a state where the dump operation lever 3 is pulled up, the collector 2 can be dumped and the stored turf grass can be dumped and discharged to the cut ground or the like. When the collector 2 after dumping is rotated back to the accommodation position, the collector 2 is locked by the lock mechanism 4 waiting for lock. Further, the dump operation lever 3 falls by its own weight and returns to the initial position.

Further, the lock mechanism 4 will be described in detail below.
Between the lower side of the dump operation lever 3 and the rear frame 18, a lock mechanism 4 that restricts or releases the rotation of the collector 2 around the dump shaft 18 is configured.

    On the hook plate 12 that is dumped by rotating the dumping operation lever 3 back and forth, a lever support 39 that fits the dumping operation lever 3 slidably up and down in the longitudinal direction of the lever is formed in two upper and lower portions. An engagement ring 40 having a diameter larger than the lever diameter is provided at the lower end portion of the dump operation lever 3. The engaging lever 5 having a U-shape in plan view is provided on the bracket 42 so as to be rotatable up and down in a posture that sandwiches both sides of the dump operation lever 3 so as to be rotatable around the lever pin 48. When the engagement ring 40 is engaged, the lever ring 48 rotates upward.

    A bracket 42 is provided on one of the left and right sides of the rear frame 18, and a hook plate 43 is supported on the outer surface of the bracket 42 by a support shaft 44 so as to be pivotable back and forth. 46 can be inserted and adjusted with respect to the bracket 42 by adjusting the front-rear angle. The lock hook 9 is supported on the lower end of the hook plate 43 by a hook shaft 47 so as to be rotatable up and down. 52 and 53 are stoppers for restricting the rotation of the engaging lever 5 and the swing arm 6.

    A swing arm 6 is provided at the upper end of the bracket 42 so as to be pivotable up and down around the support shaft 41, and the engagement lever 5 is provided at the rear end of the swing arm 6 so as to be pivotable up and down around the lever pin 48. Further, the return spring 13 is configured to be pulled downward. The link rod 7 is connected between the connecting body 50 at the intermediate portion of the swing arm 6 and the lock hook 9. The lock hook 9 is turned up and down by turning up and down around the support shaft 41 of the swing arm 6, and the lock hook 9 is engaged with and detached from the lock pin 8 formed on the net frame 30 side. .

    When the lock hook 9 engaged with the lock pin 8 is disengaged and the collector 2 is dumped, the dump operation lever 3 is pulled up along the lever support 39. Then, the engagement ring 40 at the lower end is brought into contact with the engagement lever 5, and the engagement lever 5 is lifted and rotated upward. Then, the rear part of the swing arm 6 rotates upward against the spring 13, and the lock hook 9 rotates upward against the spring 70 via the link rod 7 to engage with the lock pin 8. Can be removed and unlocked.

    Further, when the dump operation lever 3 is pivoted forward, the collector 2 pivots around the dump shaft 29 and dumps the front open portion G of the collector 2 in the direct downward direction, that is, the discharge posture.

    A damper 55 is provided between the pin 51 of the bracket 42 and the pin 54 of the hook plate 12. The damper 55 is configured to expand and contract as the collector 2 rotates, and is in the most contracted state when the collector 2 is in the working position. 3 is configured to assist the rotation operation. Further, by adjusting the hook plate 43 back and forth in the region of the long hole 45 by loosening the bolt 46, the optimum engagement hook position of the collector 2 with respect to the lock pin 8 can be adjusted.

  When returning the collector 2 from the discharge position to the working position, the collector 2 rotates around the dump shaft 29 when the dump operation lever 3 is rotated backward. Then, when the engagement ring 40 and the engagement lever 5 of the dump operation lever 3 are separated from each other, the swing arm 6 is lowered by the pull of the spring 13, and then the link rod 7 and the lock hook 9 are lowered to the lock position. . When the collector 2 rotates to the working position, the lock pin 8 comes into contact with the lock hook 9 waiting at the lock position, and the lock hook 9 and the lock pin 8 are locked by the action of the spring 73. The dump operation lever 3 slides downward under its own weight and returns to the initial position.

    As described above, the lock mechanism 4 includes the engagement lever 5 that is engaged and rotated by the lifting operation of the dump operation lever 3, the swing arm 6 that swings when the engagement lever 5 rotates, and the swing arm. 6, a link rod 7 that is interlocked by the link rod 7, a lock hook 9 that is rotationally engaged with the lock pin 8 of the collector 2 by being interlocked with the link rod 7, and a spring 13. Then, the engaging lever 5 is rotated by pulling up the dump operation lever 3, and the rocking arm 6 and the link rod 7 are pulled up to rotate the lock hook 9 to the unlocking position.

    When the engagement ring 40 and the engagement lever 5 are detached, the swing arm 6, the link rod 7, and the lock hook 9 are returned from the lock release position to the lock position by the spring 13. When the rotated collector 2 is returned to the work position by the dump operation of the dump operation lever 3, the lock hook 9 waiting at the lock position engages the lock pin 8 of the collector 2. Thus, the collector 2 is locked in the accommodation position.

    A hook 33 is formed at the rear end portion of the hook plate 12, and an engagement pin 32 protruding outward from the left and right upper side portions of the net frame 30 of the collector 2 is formed to be engaged with and supported by the hook 33. An insertion hook 34 that can be inserted into and fitted to the dump shaft 29 and supported at the front end is formed on the upper left and right sides of the net frame 30, and the engagement pin 32 is formed at the rear end. A hook arm 35 having the above is provided. Such a hook arm 35 portion of the collector 2 is brought close to the hook plate 12, the insertion hook 34 is inserted into and engaged with the dump shaft 29, and the engaging pin 32 is placed on the hook 33 portion and engaged. By doing so, it can be attached and supported.

  Next, based on FIGS. 5 and 6, the hook plate 12 on which the collector 2 is mounted is dumped by expanding and contracting the dump cylinder 60 instead of the dump operation lever 3. The lock hook 9 can be actuated. The dump cylinder 60 is driven by a gear motor 61 that is rotated forward and backward to expand and contract vertically, and is attached to the mounting bracket 11 and covered with a cover 62. The motor 61 is attached to a support arm 63 that can swing up and down at regular intervals with respect to the mounting bracket 11, the spindle 64 at the upper end of the dump cylinder 60 is connected to the hook plate 12, and the lower end of the dump cylinder 60 is The mounting bracket 11 is connected to a swing arm 6 pivotally supported so as to swing up and down, and is linked to a lock hook 9 via a lock mechanism 4 including a link rod 7 and the like.

  In this embodiment, the collector 2 whose upper side surface is covered with a collector cover 10 that can be pivoted up and down is detachably engaged with and supported by a hook plate 12 that is pivotally supported by a mounting bracket 11 at the rear of the vehicle body 1. It is said. When the collector 2 is attached to and detached from the hook plate 12, the collector cover 10 can be rotated upward to facilitate the engagement support and the removal operation with respect to the hook plate 12. When the collector 2 is dumped, the dumping of the hook plate 12 makes it possible to dump the collector 2 engaged and supported by the hook plate 12 and discharge the accommodated turf grass.

  The collector 2 mounted by engaging the hook plate 12 with the engagement pin 32 of the hook arm 35 and the like is mounted on the upper surface of the collector cover 10 covering the upper part of the rear fender around the driver seat 21 at the rear end of the vehicle body 1. The upper surface 56 is formed at substantially the same height as that of the upper surface 56, and the front-rear space is made narrower by approaching the front and rear. Then, by rotating the collector cover 10 upward about the opening / closing shaft 36, the attaching / detaching operation of the collector 2, maintenance, and the like can be easily performed by the spacing portion A. By extending the dump cylinder 60, the lower swing arm 6 is rotated, the lock hook 9 is rotated via the lock mechanism 4, the engagement with the lock pin 8 is released, and the lock is released. At the same time, the upper hook plate 12 is rotated upward, and the collector 2 attached thereto is dumped around the shaft 29.

    A collector cover 10 covering the upper side surface of the collector 2 is supported so as to be pivotable up and down around an opening / closing shaft 36 at the rear end portion, and can be opened / closed at a certain opening / closing angle region via an expansion / contraction link 37 at the front portion. . A handle 38 is provided on the upper side of the collector cover 10. By rotating the collector cover 10 upward and opening it, the hook arm 35 can be easily attached to and detached from the hook plate 12 portion. Further, it is possible to perform grass collection exhaust from the opened opening.

  Further, as shown in FIG. 7, the mounting holes 65 and 66 of the dump cylinder 6 are formed in a plurality of stages in the hook plate 12 so that the connecting pin 67 of the spindle 64 can be replaced. The rotation angle of the hook plate 12 by extension can be changed, and the connection pin 67 is inserted and connected to the mounting hole 65 of the hook plate 12 so as to dump the normal dump height H1 for maintenance work or the like. By connecting the pin 67 to the mounting hole 66, the rotation can be maintained at the high position H2, and workability can be improved.

The side view which shows the working state of a collector. The side view which shows the discharge | emission state of a collector. The top view of a part of link mechanism. Overall side view of mower collector. The side view of the collector which shows some other examples. The side view which shows the collector state of another example. The side view (A) of the collector which shows a part of another example, and the action explanatory side view (B) of the principal part. Perspective view of link mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Collector 3 Dump operation lever 4 Lock mechanism 5 Engagement lever 6 Swing arm 7 Link rod 8 Lock pin 9 Lock hook 10 Collector cover 11 Mounting bracket 12 Hook plate

Claims (3)

  A dump control lever (3) for dumping the collector (2) capable of dumping with respect to the vehicle body (1) is provided. When the damper operation lever (3) is pulled up in the longitudinal direction of the lever, the work position of the collector (2) is A mower collector comprising a lock mechanism (4) for releasing the lock and allowing the collector (2) to be dumped to a discharge position.   The dumping lever (3) for dumping the dumpable collector (2) with respect to the vehicle body (1) is provided, and the engagement ring (3) formed on the dumping lever (3) by pulling up the dumping lever (3) ( 40) an engaging lever (5) that rotates by engaging with it, a swingable swinging arm (6) that is connected to the engaging lever (5), and a link rod that is connected to the swinging arm (6). (7) and a lock hook (9) which is connected to the link rod (7) and engages with the lock pin (8) are provided. The engagement lever (5), the swing arm (6) and the link rod (7) are provided. ) And the lock hook (9) are linked to each other by a link operation. When the dump operation lever (3) is pulled up in the longitudinal direction of the lever, the engagement ring (40) and the engagement lever (5) are engaged. To perform the link operation and lock hook (9) Mohr collector moves to the unlocking position to unlock the working position of the collector (2), characterized in that a locking mechanism (4) to allow the dump operation the discharge position the collector (2). When the collector (2) is rotated from the discharge position to the working position, the dump operation lever (3) moves downward due to its own weight, and when the engagement ring (40) and the engagement lever (5) are detached, the lock hook ( The mower collector according to claim 2, wherein 9) moves from the unlocked position to the locked position.

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