JP2009055789A - Mower collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that mowed lawn grasses are dropped on the rear portion of a tractor vehicle body and are rolled in the rear wheel portion of the vehicle body to obstruct the travel of the tractor vehicle on the discharging of the received lawn grasses, in a mower having a collector for receiving the mowed lawn grasses behind the tractor vehicle body. <P>SOLUTION: This mower collector is characterized by disposing a rotation operation means 27 for rotating a collector case 5 comprising a partition board 3 having a collecting and sending port 2 communicated with a collecting and sending duct 1 and a receiving cover 4 capable of being opened or closed on the rear side of the partition board 3 in a rear and upper direction on a support shaft 6 disposed in the upper end portion of the partition board 3 in the rear end portion of the collecting and sending duct 1, disposing a connection means 48 for rotating the partition board 3 on the basis of the operation of the rotation operation means 27 in a state close to the receiving cover 4 and for stopping the rotation of the partition board 3 in a posture inclined in the rear lower direction in the midway of the rotation, between the rotation operation means 27 and the partition board 3, and further operating the rotation operation means 27 to open between the partition board 3 and the receiving cover 4, thus discharging the collected lawn grasses in the rear direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  This invention is a tractor mower in which a mower deck is attached to the front or abdomen of the tractor, and the grass collected by sucking and conveying the turf grass cut by a blade for cutting blades equipped inside the mower deck to the collector, It relates to a mower collector that discharges to the rear side of the vehicle body, and discharges to a separation position at the rear of the vehicle body.

The mower deck and collector are connected by a shooter and blower, the turf grass mowed by the mower deck is sucked and conveyed by the blower, sent to the collector and collected, and the collector is connected via a lift link mechanism. A technique (for example, refer to Patent Document 1) in which the accommodated turfgrass is discharged to the cut ground by rotating to the rear upper part and being released is known.
JP-A-11-56064 (second page, FIG. 1).

  In front mowers and mid mowers, a collector that houses mowing turf grass is often installed at the rear of the tractor body, and an engine is generally mounted at this position. At times, the turfgrass at the time of discharge gets on the engine at the rear of the vehicle body and is easily sucked, and is caught in the rear wheel portion of the vehicle body and easily gets in the way.

  The invention according to claim 1 is a collector case 5 comprising a partition plate 3 having a collection port 2 for communicating the collection duct 1 and a housing cover 4 that can be opened and closed with respect to the rear side of the partition plate 3. Is provided around the support shaft 6 at the upper end portion of the partition plate 3 at the rear end portion of the collecting duct 1. In the meantime, the partition plate 3 is rotated close to the housing cover 4 based on the operation of the rotation operation unit 27, and the connection unit is configured to stop the partition plate 3 from rotating backward and tilting in the middle of the rotation. 48, and by further operating the rotation operation means 27, the mower collector is configured to open the space between the partition plate 3 and the housing cover 4 and discharge the collected grass backward.

  At the time of turf grass cutting by the mower deck, the collector case 5 rotates forward and downward around the rotation shaft 6 so that the collecting port 2 of the partition plate 3 looks into the collecting duct 1 and the rear of the partition plate 3 A collector case 5 is formed by receiving the housing cover 4 on the side. Turf grass cut by the front mower deck is conveyed rearward through the collecting duct 1 and accommodated in the collector case 5 from the collecting port 2 of the partition plate 3.

  When the turf grass accommodated in the collector case 5 becomes full, the collector case 5 is rotated around the support shaft 6 toward the rear upper part by the rotation operation means 27 to open the lower part of the collector case 5. To collect and drop the grass. At this time, since the connecting means 48 is interposed along with the rotation of the collector case 5, the partition plate 3 can rotate integrally around the support shaft 6, and is accommodated between the partition plate 3 and the housing cover 4. The collected grass is not discharged, and the discharge / falling position is moved backward by the backward tilting rotation of the partition plate 3. When the rotation of the partition plate 3 reaches a certain position, the partition plate 3 stops and only the housing cover 4 rotates rearward and upward, and the turf grass stored with the partition plate 3 opened is dropped and discharged from the opening. Let For this reason, the turfgrass guided down by the rearward inclination of the partition plate 3 is discharged to a position spaced rearward from the rear end of the vehicle body.

  According to a second aspect of the present invention, a weir plate 7 that can turn up and down is provided at the lower end portion of the housing cover 4. Is moved downward to shift the discharge position of the accommodated turf grass backward.

  When the turfgrass cut by the mower deck and conveyed through the collecting duct 1 is accommodated in the collector case 5, the accommodation cover 4 in the form in which the weir plate 7 is raised is rotated close to the front partition plate 3. A collector case 5 is formed to accommodate turfgrass collected from the two collection ports. Since the accommodated turfgrass is supported so as to be locked by the weir plate 7 at the lower end of the accommodation cover 4, even if the accommodation cover 4 is rotated backward around the support shaft 6, a predetermined amount is obtained. Over the open rotation area, the collected grass is transported rearward without being discharged, and is transported to a position spaced rearward from the rear end of the vehicle body. At this position, the weir plate 7 falls downward with respect to the accommodation cover 4 and rotates to fall and discharge the collected grass.

  Since the invention according to claim 1 is configured to rotate the partition plate 3 and the housing cover 4 back and forth around the support shaft 6 at the rear end portion of the collecting duct 1, the grass collecting position and the grass collecting posture are provided. In this state, the partition plate 3 and the collector case 5 are rotated around the support shaft 6 at a fixed position so that the grass is discharged. The rotation of the partition plate 3 is stopped during the backward rotation. This allows the partition plate 3 to guide the grass collection to a position spaced rearward from the rear end of the vehicle body and flow down.

  In addition, the support structure for opening and closing the collector case 5 can be simplified, and the collector case 5 can be opened and closed at a low position without being raised or lowered to a high position. it can.

  According to the second aspect of the present invention, a weir plate 7 that can be raised and lowered is provided at the lower end portion of the housing cover 4 that pivots back and forth and collects grass, and this barrier plate 7 stands up in the initial region of the discharge rotation. In this state, the weir plate 7 is tilted downward at the position where it is rotated backward, so that the grass collection is held and moved, the discharge is delayed, and the fall discharge position is set to the rear position from the rear end of the vehicle body. Can be separated. The structure can be simplified and accurate discharge can be performed.

A case where the embodiment of the present invention is applied to a mid mower mounted on a tractor abdomen will be described with reference to the drawings.
1 to 3, the tractor vehicle body has a front wheel 9 steered by a steering handle 8 and a rear wheel 11 below the driver's seat 10, and is driven by an engine 13 mounted under the front bonnet 12. And can travel. The mower deck 14 is suspended from the abdomen of the vehicle body by parallel links 15 and 16 and can be moved up and down by the rotation of the lift arm 17. The mower deck 14 is provided with blades 19 that rotate around a pair of left and right blade shafts 18. The collecting duct 2 is connected to the rear center portion of the width of the mower deck 14 and the duct 2 is communicated with the inside of the collector case 5 attached to the rear end of the vehicle body through the space between the left and right rear wheels 11. The collector case 5 is composed of a partition plate 3 that supports the mounting frame 20 at the rear of the vehicle body so as to be rotatable around the support shaft 6 in the front-rear direction, and a rear cover 4.

  Here, the mower collector according to the present invention is a collector comprising a partition plate 3 having a collection port 2 through which the collection duct 1 communicates, and an accommodating cover 4 that can be opened and closed with respect to the rear side of the partition plate 3. The case 5 is rotated rearward and upward around the support shaft 6 at the upper end portion of the partition plate 3 at the rear end portion of the collecting duct 1, and the partition plate 3 is rotated and stopped in a downwardly inclined manner during the rotation. Thus, the gap between the partition plate 3 and the housing cover 4 is opened, and the collected grass is discharged backward.

  At the time of turf grass cutting by the mower deck, the collector case 5 rotates forward and downward around the rotation shaft 6 so that the collecting port 2 of the partition plate 3 looks into the collecting duct 1 and the rear of the partition plate 3 A storage case 4 is received on the side to form a collector case 5. Turf grass cut by the front mower deck is conveyed rearward through the collecting duct 1 and accommodated in the collector case 5 from the collecting port 2 of the partition plate 3.

  When the turfgrass housed in the collector case 5 is full, the collector case 5 is rotated around the support shaft 6 toward the rear upper part, the lower part of the collector case 5 is opened, and the collected grass is dropped and discharged. Let At this time, as the collector case 5 rotates, the partition plate 3 rotates integrally around the support shaft 6 so that the grass collected between the partition plate 3 and the storage cover 4 is not discharged. Thus, the discharge and drop position is moved rearward by the rearward tilt rotation of the partition plate 3.

  When the rotation of the partition plate 3 reaches a certain position, the partition plate 3 stops and only the housing cover 4 rotates rearward and upward, and the turf grass stored with the partition plate 3 opened is dropped and discharged from the opening. Let For this reason, the turfgrass guided down by the rearward inclination of the partition plate 3 is discharged to a position spaced rearward from the rear end of the vehicle body.

  The mounting frame 20 is configured in a girder shape so as to surround the discharge port portion of the collecting duct 1 and is attached to the rear end portion of the vehicle body. Support brackets 21 are provided on the left and right sides of the upper end of the mounting frame 20, a support shaft 6 is provided between the left and right support brackets 21, the upper end of the partition plate 3 around the support shaft 6, and the upper front end of the housing cover 4. And attach in such a way that it can be pivoted back and forth.

  The partition plate 3 is formed with a collecting port 2 that faces the duct port at the rear end of the collecting duct 1, and the partition plate 3 is in a state along the vertical direction parallel to the direction of the mounting frame 20. Thus, the collection port 2 faces the duct port 22 of the collection duct. On the rear side of the partition plate 3, the cover port portion 23 of the front end opening of the housing cover 4 and the cover port frame 26 surrounding it can be overlapped to make the cover port portion 23 closed. The housing cover 4 has a squirrel-shaped cover frame 24 and an outer periphery thereof covered with a net member 25, and an upper side surface is covered with a cover 26.

  An operation lever 27 as a rotation operation means is provided in the vertical direction along the housing cover 4 cover opening frame 26, and the driver grips the operation lever 27 and rotates it in the front-rear direction. The collector case 5 is rotated around the support shaft 6 so that the grass discharging operation can be performed.

  A damper 28 is provided between the partition plate 3 and the cover frame 24 constituting the collector case 5, and the cover plate 23 is closed by always pressing the partition plate 2 against the cover port frame 26. . Further, the frame 20 is provided with a bracket 30 having a pin guide hole 29 to constitute a connecting means 48, and a guide pin 31 protruding from the partition plate 3 is fitted into the pin guide hole 29.

  When the collector case 5 is rotated around the support shaft 6 to a certain discharge position A by the operation of the operation lever 27, the partition plate 3 is covered by the action of the damper 28. By rotating integrally with the mouth frame 26, the cover mouth 23 is maintained in a closed state so as not to discharge the collected grass.

  When the operation lever 27 is further rotated, the guide pin 30 engages with the pin guide hole 29 and the rotation of the partition plate 2 is locked at the discharge position A in the rearwardly lowered posture, and only the cover frame 24 is at the upper limit position. The grass collecting discharge port C is opened between the partition plate 2 inclined to the discharge position A and the cover port 23 at the upper limit position B, and the grass collection in the collector case 5 is divided into the partition. It can be made to guide to the inclined surface of the plate 2 and flow down to the rear.

  After the turfgrass is discharged D, the operation lever 27 is returned to the rear side to move the accommodation cover 4 at the upper limit position B downward to superpose it on the partition plate 2 at the discharge position A, and close the grass collection outlet C. In this state, it further moves down to return to a position where turfgrass is accommodated, and grass collection is resumed from the collection duct 1 through the collection port 2.

  In the grass collection for the collector case 5, the bottom of the collecting duct 1 is configured to be opened and closed by rotating the front plate 32 and the rear plate 33 up and down in two places at the front and rear positions of the rear half portion, and the side of the driver's seat 10. The link 35, 36 is connected by the operation of the lever 34 so that it can be opened and closed.

  The front plate 32 rotates upward to form an opening 37 at the bottom, and discharges and discharges the turfgrass conveyed through the duct 1. The rear plate 33 is attached to the frame 20 or the like at the lower end position on the collection port 2 side, and is rotated up and down to open and close the opening 38 formed at the bottom. In the state where the opening 38 is opened by the rear plate 33, the collecting port 2 of the partition plate 3 is configured to be closed, and when the rear plate 33 is closed, the turf grass positioned on the rear plate 33 is collected. 2 is pushed into the collector case 5 to prevent conveyance clogging.

  When the collected grass of the collector case 5 is discharged, the front plate 32 and the rear plate 33 are operated to open the openings 37 and 38 to discharge the transport turf in the duct 1 downward, thereby preventing the transport clogging. is there.

  Further, a hook 39 is provided on the operating lever 27 for opening and closing the collector case 5, and the operating lever 27 is moved up and down with respect to the cover opening frame 26 to form the hook 39 on the bracket 40 of the frame 20. By engaging with the lock hole 41, the collector case 5 can be maintained at the upper limit position B, and the inside of the duct 1 can be easily cleaned by opening the collecting port 2.

  Next, the configuration of the weir plate will be described based on FIG. A dam plate 7 is provided at the lower end of the housing cover 4 so as to be able to turn up and down. The turf grass 7 is pivoted downward as the housing cover 4 is pivoted to the upper rear part. The discharge position is shifted backward.

  When the turfgrass cut by the mower deck and conveyed through the collecting duct 1 is accommodated in the collector case 5, the accommodation cover 4 in a form in which the weir plate 7 is raised is rotated close to the front partition plate 3. A collector case 5 is formed to accommodate turfgrass collected from the two collection ports. Since the accommodated turfgrass is supported so as to be locked by the weir plate 7 at the lower end of the accommodation cover 4, even if the accommodation cover 4 is rotated backward around the support shaft 6, a predetermined amount is obtained. Over the open rotation area, the collected grass is conveyed rearward without being discharged, and is transported to a position spaced rearward from the rear end of the vehicle body. At this position, the weir plate 7 falls downward with respect to the accommodation cover 4 and rotates to fall and discharge the collected grass.

  The undulation and rotation of the weir plate 7 is performed by the interlocking of the link rod 42 and the crank arm 43 due to the rotation of the container case 5. One end portion of the weir shaft 44 that rotatably supports the weir plate 7 is connected via a crank arm 43 at the lower end portion of the link rod 42 provided along the cover port 23, and the collector case 5 is positioned at the grass collecting position. The dam plate 7 stands up along the cover port 23 according to the position of the link rod 42 and is in a state of locking the grass collection discharge in the collector. By rotating to position B, the crank arm 43 is rotated by the link rod 42 and the weir plate 7 is rotated to the lower side of the cover port 23, and the collected grass in the collector is discharged. It can be in an easy state.

Next, a modified example of the weir plate will be described based on FIG. A guide plate 45 in which the rear plate 33 and the weir plate 7 are integrated is provided at the cover port 23 of the collector case 5.
When collecting the grass in the collector case 5, the grass collected in the collection port 3 is received and guided, and when the collector case 5 is rotated to the discharge position A, the guide plate 45 is kept standing. It is made to move and it maintains in the state which received the grass collection in these collector cases 5 and the upper part of the backplate 33, and keeps many grass collection amounts.

  When the guide plate 45 is rotated to the upper limit position B of the collector case 5, the guide plate 45 is rotated downward around the weir shaft 44 to facilitate grass collection discharge. The link arm 46 below the weir shaft 44 of the weir plate 7 of the guide plate 45 is connected to the lower end of the operation lever 27, and in the grass collecting position, the spring 47 is connected to the guide plate 45 to the cover frame 24. The guide plate 45 is kept closed. By rotating from the discharge position A to the upper limit position B, the link arm 46 and the damming plate 7 are moved downward around the dam shaft 44 against the spring 47 depending on the configuration position of the cover port frame 26 and the operation lever 27. Rotate to make it easier to discharge grass.

  Based on FIG. 6, in the front mower of the tractor, the engine 13 is mounted on the rear portion of the driver's seat 10 of the vehicle body 50, and the collector 51 is supported on the upper side of the engine 13 so as to be rotatable around the support shaft 53 of the rear frame 52. Thus, it is configured in a low dump form to improve operability. The dumping operation of the collector 51 is performed through the link 55 and the damper 56 by the vertical operation of the operation lever 54 arranged on the side of the driver's seat 10. Between the driver's seat 10 and the engine 13 room, there is provided a lops 59 that can be folded backward around the folding shaft 58 so that the upper lops 57 can be folded out of the way when not working. can do.

  The front side of the collector 51 has a supply port 60 and is connected to the front mower deck by a collecting duct to collect the cut turf grass. When discharging the collected grass of the collector 51, if the operation lever 54 is pushed down and rotated around the lever shaft 61, the collector 51 is dumped backward around the support shaft 53 via the link 55, and the rear The discharge cover 63 of the discharge port 62 at the end is opened to discharge the collected grass.

In addition, the dumping posture of the collector 51 is regulated by a check rod 64 connected between the operation lever 54 and the collector 51.
Next, mainly based on FIG. 7, a front mower equipped with a high-dump type collector is shown, in which the collector 51 is supported by a pair of upper and lower parallel links 66 and 67 and is lifted and lowered by expansion and contraction of the hydraulic lift cylinder 70 The link support shafts 68 and 69 of the links 66 and 67 with respect to the rear frame 52 are provided at the rear of the vehicle body 13, and the lift cylinder 70 is arranged along the upper and lower parallel links 66 and 67.

  The upper and lower spaces formed by the parallel links 66 and 67, the lift cylinder 70, and the like can be narrowed to increase the capacity of the collector 51 and reduce the mounting height. The collector 51 is dumped in such a manner that it is supported by a rear end portion of a hook-shaped support arm 71 connected between the front ends of the parallel links 66 and 67 so as to be rotatable around the dump shaft 72. The dumping can be performed by extending and contracting the dump cylinder 73 provided between the collector 51 and the collector 51.

The side view of a moor collector part. The perspective view of the operation lever part. The perspective view which shows the operating state of the collector case part. The side view and partial perspective view of the collector case part which show some other examples. The side view of the collector case part which shows some other examples. The sectional side view which shows the operation state of the collector case part of the low dump form of a part another example. The sectional side view which shows the operation state of the collector case part of the high dump form of a part another example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Collecting duct 2 Collecting port 3 Partition plate 4 Storage cover 5 Collector case 6 Support shaft 7 Damping plate

Claims (2)

  A collector case comprising a partition plate (3) having a collection port (2) for communicating the collection duct (1), and an accommodating cover (4) that can be opened and closed with respect to the rear side of the partition plate (3). Rotating operation means (27) is provided for rotating (5) rearward and upward around the support shaft (6) at the upper end of the partition plate (3) at the rear end of the collecting duct (1). Between the moving operation means (27) and the partition plate 3, the partition plate (3) is rotated close to the housing cover (4) based on the operation of the rotation operation means (27). Linking means (48) for rotating and stopping the partition plate (3) in the downwardly inclined posture during rotation is provided, and by further operating the rotation operation means (27), the partition plate (3) and the storage cover ( 4) A mower collector characterized by opening the space between the two and discharging the collected grass backward.   The accommodation cover (4) is provided with a damming plate (7) capable of swinging up and down at the lower end thereof, and the damming plate (7) is attached to the rear upper part of the accommodation cover (4). The mower collector according to claim 1, wherein the mower collector is rotated downward to shift the discharge position of the accommodated turf grass backward.

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