JP2015160743A - Traction device of agricultural work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a constitution which can efficiently tow a windup device for winding up a machine body to the outside of a farm filed even if the windup machine is hung to a place other than a linear place of the machine body when the machine body becomes impossible to move due to a depth of the farm field.SOLUTION: In an agricultural work machine having a work device 6 at a rear part of a traveling body 4 so as to be liftable, a windup device 7 for winding a wire 8 and towing the traveling body 4 is arranged at a front end part of the traveling body 4 being a center position in left and right directions, a winding port part 9 of the wire 8 of the windup device 7 is arranged at a position higher than a rear axle 10, the windup device 7 is attached to the front end part of the traveling body 4 so as to be movable to left and right directions, the windup device 7 having a windup reel 12 which turns around a reel shaft 11 in the left and right directions is arranged around a turning shaft 13 in a vertical direction so as to be turnable, and a winding direction of the windup reel 12 is directed to a stretch direction of the wire 8.

Description

  This invention, when a farming machine that works while running a wet paddy wheel like a seedling transplanter sinks into a deep depression of a soft soil cultivator part, it is easy to pull by a winch mounted on the traveling vehicle body itself, The present invention relates to a traction device that easily moves and escapes.

  A seedling transplanting machine having a front wheel, a rear wheel, a four-wheel drive and a rear traveling vehicle body in a riding traveling form connected to a seedling transplanting device via an elevating link, the traveling transmission device including a differential gear mechanism, , Side clutch mechanism, differential lock mechanism, etc., to make it easier to steer coasting, and to facilitate the escape running of a submerged traveling vehicle body on a deep and soft soil surface of a tiller (for example, patented 2) is known.

JP 2004-243843 A JP 2010-88457 A

  In seedling planting work and harvesting work on a soft paddy soil surface deep in the cultivator, the wheels of the work equipment suddenly sink to the deep soil surface, and it is not possible to escape only by driving rotation of the own wheel There are many. In such a case, it is easy to escape by using a diff lock. However, when the soil surface is stirred with a wheel, the soil surface cultivator becomes deeper and softer, and it is often difficult to escape.

  The invention according to claim 1 is an agricultural working machine provided with a work device (6) that can be moved up and down at the rear part of the traveling vehicle body (4), at the front end of the traveling vehicle body (4) and at the center position in the left-right direction, It is set as the structure of the towing apparatus of the agricultural working machine characterized by providing the winding device (7) which winds a wire (8) and tow | pulls a traveling vehicle body (4).

  The traveling vehicle body (4) travels by driving and rotating the front wheels (1) and the rear wheels (2) by driving the engine (3), and the working device (6) connected to the rear portion is linked to travel soil. A predetermined operation can be performed on the surface. When the traveling vehicle body (4) is unable to travel due to the front wheel (1) and the rear wheel (2) spinning idle at a deep part of the cultivator in the field during the process, The hoisting device 7 is mounted on the front portion of the vehicle body (4), or an escape action is achieved using the hoisting device (7) that is already mounted and mounted.

  The front end portion of the wire (8) pulled out from the hoisting device (7) on the hoisting base (14) at the front end portion of the traveling vehicle body (4) is connected to the structure in front of the traveling vehicle body (4), the edge, etc. Secure it by tying it to an anchor etc.

  Here, by driving the winding device (7), the wire (8) is wound around the winding reel (12). By the pulling force of the wire (8) by the hoisting device (7) and the propulsive force of the traveling vehicle body (4) forward by the rotation of the front wheels (1) and the rear wheels (2) driven by the engine (3) Can escape from the sinking position. When the traveling vehicle body (4) returns to the normal work travel state position, the connection of the wire (8) can be released and the work travel can be resumed.

  When the traveling vehicle body (4) escapes from the subsidence position by the hoisting device (7), the working device (6) on the rear side of the traveling vehicle body (4) is placed in a posture where it is raised by the lifting link (5). As a result, the weight of the work device (6) greatly acts on the rear wheel (2) of the traveling vehicle body (4). In this state, the front wheel (1) is pressed by the weight of the hoisting device (7) and the pressing force due to the tensile force of the wire (8) to prevent the front of the traveling vehicle body (4) from rising and traveling. The vehicle body (4) is smoothly evacuated.

  The invention according to claim 2 is characterized in that the winding opening (9) of the wire (8) of the hoisting device (7) is provided at a position higher than the rear axle (10). A tractor for agricultural machines as described in 1.

  The traveling vehicle body (4) that is pulled forward by the winding of the wire (8) by the hoisting device (7) has a component force of the pulling of the wire (8) that is pulled by the hoisting of the hoisting device (7), Working to push down the front wheel (1), depending on the weight of the hoisting device (7) at the front end of the traveling vehicle body (4), the tensile force of the wire (8), and the weight of the rear working device (6) The load is applied to the front wheels (1) and the rear wheels (2) in a well-balanced manner, so that the traveling vehicle body (4) escapes from the settling position quickly and smoothly.

  The invention according to claim 3 is characterized in that the hoisting device (7) is mounted so as to be movable in a lateral direction with respect to a front end portion of the traveling vehicle body (4). The tractor of the agricultural machine described.

  The hoisting device (7) is configured to drive and rotate the hoisting reel (12) around the reel shaft (11) along the left-right direction, and wind the wire (8) stretched in front of the traveling vehicle body (4). By pulling the wire (8), the traveling vehicle body (4) is pulled to the front side to escape from the subsidence position. For this reason, the tensile force of the wire (8) works strongly in a direction substantially orthogonal to the direction of the reel shaft (11), and an effective traction force can be exhibited.

  Accordingly, when the direction of the position and orientation of the traveling vehicle body (4) is deviated from the pulling direction of the wire (8) of the hoisting device (7), the mounting position of the hoisting device (7) is moved in the left-right direction. Move and adjust the wire (8) so that it is aligned with or close to the pulling position.

  According to a fourth aspect of the present invention, there is provided a hoisting device (7) including a hoisting reel (12) that rotates about the left-right reel shaft (11). The tractor of the agricultural working machine according to any one of claims 1 to 3, wherein the traction reel is provided so as to be capable of turning and the winding direction of the hoisting reel (12) is directed to the tension direction of the wire (8). A device.

  The hoisting device (7) is pivotally adjusted around the turning shaft (13) so that the reel shaft (11) of the hoisting reel (12) is orthogonal to the pulling direction of the wire (8). Thus, the traction force of the wire (8) is made to work effectively.

  The invention according to claim 5 is characterized in that the hoisting base (14) that supports and mounts the hoisting device (7) is mounted in a front-up tilt posture with respect to the front end portion of the traveling vehicle body (4). It is set as the traction apparatus of the agricultural working machine of any one of Claim 1 to 4.

  Since the hoisting device (7) is attached to the upper surface of the hoisting base (14) at the front end of the traveling vehicle body (4), the hoisting device (7) can be set at a high position, and the traveling vehicle body (4) can be set by the traction force of the wire (8). ) Can be pulled with an effective and stable posture.

  Further, even when the traveling vehicle body (4) sinks to the soil surface or enters the field scene from the side of the coast, the traveling vehicle body (4) is in a forward downward posture and the winding base (14) approaches the soil surface. (4) The front end of the winding device base (14) is less likely to enter the soil surface, and the operation in an inclined posture is performed smoothly, so that muddy water is scattered to the winding device (7). Can be difficult.

  According to the first aspect of the present invention, the hoisting device (7) is provided at the front end portion of the traveling vehicle body (4), so that the traveling vehicle body (4) can be moved even if the traveling vehicle body (4) cannot travel within the field. ), The traveling vehicle body (4) can be easily and easily pulled out of the field.

  The hoisting device (7) is provided at the front end portion of the traveling vehicle body (4) and at the center position in the left-right width direction, so that the members of the respective parts of the traveling vehicle body (4) are used when the hoisting device (7) is used. Particularly, since interference with the work device (6) at the rear of the machine body is less likely to occur, the efficiency of the towing work can be improved.

  In addition, the weight of the hoisting device (7) at the front end portion of the traveling vehicle body (4), the tensile force of the wire (8), and the weight of the rear working device (6) is achieved to achieve traveling. The escape action from the subsidence position of the vehicle body (4) can be performed smoothly.

Also in the configuration, since the hoisting device (7) is mounted on the front end portion of the traveling vehicle body (4), a simple and inexpensive form can be achieved.
In addition to the effect of the invention described in claim 1, the invention described in claim 2 is provided with a hoisting device (7) mounted on the front end of the traveling vehicle body (4) at a high position. 8) The working force that pushes down the front wheel (1) at the front of the traveling vehicle body (4) to the soil surface side, which acts on the entrainment opening (9) of the traveling vehicle body (4), is effective. 6) Due to the weight of the front wheel (1) and the rear wheel (2), the weight of the front wheel (1) and the rear wheel (2) is exerted in a balanced manner, making it difficult for the front wheel (1) or the rear wheel (2) to rotate freely. By effectively towing the vehicle, it is possible to facilitate escape of the traveling vehicle body (4) from the settling position.

And since it is a form which sets the setting position of the winding device (7) high, a structure can be simplified and mud scattering can be prevented.
In addition to the effect of the invention of claim 1 or 2, the invention of claim 3 moves the position of the hoisting reel (12) in the pulling direction of the wire (8) by the hoisting device (7). Because it can be set, so that the traction force by the wire (8) of the hoisting device (7) is effectively used, so as not to give an excessive external force such as swinging the traveling vehicle body (4) and damage it. With a simple configuration and operation, it is possible to easily and accurately escape from the subsidence position.

  In addition to the effect of the invention described in any one of claims 1 to 3, the invention described in claim 4 is configured to change the winding direction of the wire (8) of the hoisting device (7) with the turning axis ( 13) By adjusting and setting by turning around, the configuration can be simplified and the operation can be facilitated.

  Further, the selection and setting of the winding direction or winding position of the take-up reel (12) can be appropriately performed depending on the position and posture of the traveling vehicle body (4), the field conditions, etc. , Can be configured to be selectable.

  Further, when the towing direction of the traveling vehicle body (4) changes in the middle, the hoisting device (7) is adjusted to rotate around the turning axis (13), so that it is suitable for the towing direction of the traveling vehicle body (4). Since the pulling direction of the wire (8) can be determined, the traction force can be effectively applied, and efficient traction can be performed without generating an excessive external force.

  In addition to the effects of the invention according to any one of claims 1 to 4, the invention according to claim 5 is attached to the upper surface by arranging the winding base (14) in a forwardly inclined posture. Winding of the wire (8) of the hoisting device (7) is difficult to move forward from the upper surface of the hoisting base (14) even if the hoisting device (7) is pulled forward through the wire (8). Towing can be performed effectively and stably.

In addition, the position of the hoisting device (7) is positioned upward, and the pushing force of the front end portion of the traveling vehicle body (4) at the time of towing can be maintained, so that the towing action can be effectively performed.
Moreover, by simplifying the configuration and positioning the hoisting device (7) upward, scattering of mud water and the like can be prevented.

Side view of seedling transplanter Top view of seedling transplanter Side view showing another example of seedling transplanter Plan view showing another embodiment of seedling transplanter Plan view showing another embodiment of seedling transplanter Side view showing another example of seedling transplanter Partial plan view of a part-specific embodiment of a seedling transplanter The top view which shows the operating state of the Example according to a part of seedling transplanter Plan view showing another embodiment of seedling transplanter Partial front view of a part-specific embodiment of a seedling transplanter Side view of a part-specific embodiment of a seedling transplanter

  Based on the illustrated example, the seedling transplanter in the multi-row planting mode for passenger driving travel is transmitted from the engine 3 mounted in the center of the traveling vehicle body 4 to the hydraulic continuously variable transmission 15 and the transmission case 16 disposed on the front side. By interlocking the mechanism, the left and right front wheels 1 of the front axle housing 17 on the lower side of the transmission case 16 are transmitted and rotated, and the rear wheel 2 of the rear axle housing 19 at the rear of the traveling vehicle body 4 is connected via the rear wheel interlocking shaft 18. Is configured to be able to travel in a front, rear wheel 1, 2 or 4 wheel drive mode.

  A driver's seat 21 is mounted on the upper side of the engine cover 20 that covers the upper periphery of the engine 3, and a steering handle 24 is provided on a steering post 23 at the rear of the dashboard 22. A wide side floor 25 is formed along the left and right sides extending from the front and rear dashboards 22 to the engine cover 20, and the rear end portion is connected to the rear floor 26 portion on the rear side of the driver seat 21 or the rear fender 27 portion. And it is the form laid so that the front wheel 1 on either side and the rear-wheel 2 upper side part may be covered. The driver can easily perform seedling replenishment work and fertilizer replenishment work for the rear working device 6 while moving forward and backward from the side floor 25 to the upper surface of the rear floor 26.

  On the rear side of the traveling vehicle body 4, as a working device 6, a multi-row planting device 31 including a float 28, a seedling tank 29, a planting device 30, etc. It connects via the raising / lowering link 5 rotated up / down with respect to 33, Moreover, on the rear floor 26 part on the rear frame 33, the fertilizer feeding hopper 34, the feeding apparatus 35 which delivers fertilizer, the conveyance which conveys feeding fertilizer The fertilizer application apparatus 38 which consists of the duct 36 and the fertilizer hose 37 etc. which fertilize and guide fertilizer to the planting soil surface of the seedling planting apparatus 31 is mounted.

  At the time of the seedling planting operation, the traveling vehicle body 4 is put in the paddy field scene, and the front wheel 1 and the rear wheel 2 are supported by the soil tiller surface and traveled while rotating. The seedling planting device 31 has the float 28 on the soil surface. While sliding and leveling, the mat seedlings fed from the seedling tank 29 are planted in a multi-row planting form on the leveled soil surface of each float 28 while being separated and held by the planting device 30 at the rear end. The seedling planting device 31 is controlled to move up and down with respect to the traveling vehicle body 4 through the lifting link 5 by the expansion and contraction of the lifting cylinder 32, so that the seedling planting device 31 has a constant seedling planting depth regardless of the depth of the soil surface or the uneven surface. The elevator is controlled so as to maintain it.

  The winch 7 is provided at a substantially central position in the vehicle width direction at the front end portion of the traveling vehicle body 4. A winch base 14 is projected from the front end portion of the traveling vehicle body 4, and a winch 7 having a winch reel 12 rotating around a reel shaft 11 in the horizontal direction is mounted on the upper surface, and one side end portion of the reel shaft 11 is mounted. The winch reel 12 can be rotated to wind the wire 8 toward the traveling vehicle body 4 by driving the arranged electric motor M by battery power.

  Here, this traction device can be moved up and down via a lifting link 5 to a rear portion of a traveling vehicle body 4 which is driven and rotated by a mounted engine 3 by arranging steerable front wheels 1 and rear wheels 2. In the agricultural working machine to which the working device 6 is coupled, the traveling vehicle body 4 is provided with the towing winch 7 by winding the wire 8 at the center position in the width direction at the front end portion of the traveling vehicle body 4.

  The work implement traveling vehicle body 4 travels by driving the engine 3 to transmit and rotate the front wheels 1 and the rear wheels 2, and performs a predetermined work on the traveling soil surface in conjunction with the working device 6 connected to the rear portion. It can be carried out. When the traveling vehicle body 4 becomes unable to travel due to the wheels spinning idle in a deep part of the cultivator in the field during the work process, is the winch 7 mounted on the front of the traveling vehicle body 4? Alternatively, the escape action is achieved by using the winch 7 that is already mounted. The tip end portion of the wire 8 pulled out from the winch 7 on the winch base at the front end portion of the traveling vehicle body 4 is fixed by being connected to a structure in front of the traveling vehicle body 4 or an anchor that is inserted and fixed at the edge of the traveling vehicle body 4. Here, by driving the winch 7, the wire 8 is wound around the winch reel 12. The wheel sinking position can be escaped by the pulling force of the wire 8 by the winch 7 and the forward driving force of the traveling vehicle body 4 by the rotation of the front wheel 1 and the rear wheel 2 driven by the engine 3. When the traveling vehicle body 4 returns to the normal work travel state position, the connection of the wire 8 is released, and the work travel can be resumed.

  When the traveling vehicle body 4 escapes from the subsidence position by the winch 7, the working device 6 on the rear side of the traveling vehicle body 4 is put in a posture where it is lifted by the lifting link 5, so that the rear wheel 2 portion of the traveling vehicle body 4 is operated. The weight of 6 parts of the device works greatly. In this state, the pressing force due to the weight of the winch 7 and the tensile force of the wire 8 acts on the front wheel 1 side to prevent the front portion of the traveling vehicle body 4 from rising, and the traveling vehicle body 4 smoothly exits the subsidence position. Make it.

According to the second aspect of the present invention, the wire 8 entrance portion 9 of the winch 7 is provided at a position higher than the position of the rear axle 10.
The traveling vehicle body 4 that is pulled and moved forward by the winding of the wire 8 by the winch 7 works so that the component force of the wire 8 that is pulled by the winding of the winch 7 pushes down the front wheel 1. The load of the front and rear wheels 1 and 2 is applied in a well-balanced manner by the weight of the winch 7 of the section, the pulling force of the wire 8 and the weight of the rear working device 6, and the vehicle body 4 escapes from the subsidence position. Is done quickly and smoothly.

According to the third aspect of the present invention, the winch 7 is attached to the front end portion of the traveling vehicle body 4 so as to be movable in the lateral direction.
The winch 7 is driven and rotated by a winch reel 12 around a reel shaft 11 extending in the left and right lateral directions, and a wire 8 stretched in front of the traveling vehicle body 4 is wound around and pulled, thereby pulling the wire 8. Pull 4 forward to escape from the sinking position. For this reason, the tensile force of the wire 8 works strongly in a direction substantially orthogonal to the direction of the reel shaft 11, and an effective traction force can be exhibited. Accordingly, when the position and orientation of the work implement traveling vehicle body 4 is deviated from the pulling direction of the wire 8 of the winch 7, the mounting position of the winch 7 is moved to the left and right to pull the wire 8. Adjust to match or approach the directional position.

  According to a fourth aspect of the present invention, a winch 7 having a winch reel 12 that rotates around a horizontal reel shaft 11 is provided so as to be able to turn around a vertical turning shaft 13. The winding direction is directed toward the tension direction of the wire 8.

  The winch 7 is pivotally adjusted around the turning shaft 13, and the reel shaft 11 of the winch reel 12 is adjusted and set so as to be orthogonal to the pulling direction of the wire 8, and the traction force of the wire 8 is effective. Work on.

The invention according to claim 5 is characterized in that the winch base 14 for supporting and mounting the winch 7 is mounted on the front end portion of the traveling vehicle body 4 so as to be inclined forward.
Since the winch 7 is attached to the upper surface of the winch base 14 at the front end of the traveling vehicle body 4, the winch 7 can be set at a high position, and the traction force of the wire 8 and the pressing force of the traveling vehicle body 4 front portion are increased to be effective and stable. It is possible to tow with the traveling vehicle body 4 posture.

  Further, even if the traveling vehicle body 4 sinks to the soil surface, even if the traveling vehicle body 4 enters the field, it tilts forward and the winch base 14 at the front end approaches the soil surface. It is difficult for the base 14 to enter the soil surface due to the upwardly inclined form of the base 14, and muddy water scattering to the winch 7 part can be made difficult.

  The winch base 14 is formed in a front rising slope a over the entire length protruding from the front end of the traveling vehicle body 4 (see FIG. 1), but the rear half 39 of the winch base 14 is formed in a substantially horizontal shape. It is also possible to form the portion 40 in a front rising slope a (see FIG. 3). In any of these forms, the winch base 14 forming the front rising slope is set at a position higher than the upper end position of the front wheel 1 and set at a position higher than the position of the rear axle 10 of the rear wheel 2. .

  By forming the winch base 14 projecting to the front side of the traveling vehicle body 4 at the front upward inclination angle a as described above, even when the traveling vehicle body 4 enters and exits the field, it enters the forward downward inclination posture. It is difficult for the front end portion of this to come into contact with the soil surface, ridge surface, etc., so that it can be prevented from being pushed into the mud surface, and the scattering of muddy water can be reduced.

  Further, the winch 7 is provided on the side reel shaft 11 of the electric motor M so as to rotate the winch reel 12, and the reel shaft 11 is mounted horizontally on the winch base 14 in the horizontal direction. A long hole 41 is formed in the winch base 14 in the lateral direction, and a bolt 43 is inserted between the long hole 41 and the reel bracket 42 that supports the reel shaft 11 to fix the winch base 14. The mounting position of the winch reel 12 with respect to the horizontal direction is changed and adjustable (see FIG. 2).

  A hook 44 is attached to the tip of the wire 8 wound on the reel 12 of the winch 7, and the hook 44 is engaged with an anchor driven in the field or other structure (such as a tractor is also possible). It is possible to adopt a towing configuration in which the wire 8 is wound by rotation of the reel 12 and the traveling vehicle body 4 on which the reel 12 is mounted is drawn and moved to the anchor side. Instead of the wire 8 wound around the reel 12 of the winch 7, a rope having a high tensile strength may be used.

  The winding opening 9 of the wire 8 in the reel 12 is determined by the rotation direction of the reel 12, but in the form of winding with the wire 8 on the upper side, the winding opening 9 can be raised, Thus, in the winding form, the winding opening 9 can be lowered.

  The position of the winding opening 9 of the wire 8 with respect to the reel 12 often swings alternately in the left-right direction, and a special guide for winding and guiding the wire is not provided. In the form in which the wire guide 65 in a form parallel to the reel shaft 11 is provided along the opening 9 (see FIG. 9), a color guide 67 movable along the wire guide 65 is provided, and the wire 8 is connected to the color guide. It can also be configured to be wound on the reel 12 through 67.

  Next, mainly in FIG. 4, in order to move the winch reel 12 in the left L right R lateral direction with respect to the winch base 14 at the front end of the traveling vehicle body 4, the spiral shaft 46 rotated by the handle 45 is laterally moved. The lead cam of the guide socket 48 provided on the rear side of the winch bracket 47 is engaged and guided in the spiral groove portion, and the spiral shaft 46 is rotated to move the winch reel 12 of the winch bracket 47 in the lateral direction. The movement can be adjusted. The winch bracket 47 is supported at the rear end portion by the guide socket 48 portion by the spiral shaft 46 and at the front end portion by the guide rod 49 parallel to the turning shaft 46 so as to be slidable left and right. The mounting position with respect to can be changed to right and left.

  Next, mainly in FIG. 5, the winch 7 mounted on the upper surface of the winch base 14 can be rotated around the turning shaft 13 on the rear side portion of the winch 7 over an appropriate left and right angle region. It can be fixed in position. The winch 7 is formed with a winch bracket 47 at the bottom and is mounted on the upper surface of the winch base 14 so as to be rotatable around the turning shaft 13. The guide pin 50 is connected to the winch bracket 47 and the winch base 14. The pivot position of the winch bracket 47 can be fixed by being inserted through the pin hole.

  Further, the pin hole of the winch bracket 47 through which the guide pin 50 is inserted may be formed in the shape of an arc-shaped long hole around the turning shaft 13. Such a winch 7 can switch the wire 8 drawing direction position of the reel 12 to the front direction position C, the left direction position L, and the right direction position R around the turning shaft 13. When such a winch 7 is stored, it can be removed from the winch base 14 and placed on the upper surface of the side floor 25.

  Next, mainly in FIGS. 6, 7, and 8, the front wheel 1 of the traveling vehicle body 4 is turned in the pulling direction of the wire 8 by the winch 7. The escape action is performed smoothly. On the front side of the transmission case 16, a steering arm 51 and a drag rod 52, which are steered and linked by the steering handle 24, are provided. A steering case with a front wheel shaft 53 is operated around the steering shaft 54. It is set as the structure which rotates in the direction.

  The steering arm 51 is pivotally connected to the bottom of the front end of the traveling vehicle body 4 by a pivot 55 at the center. In front of the steering arm 51, a central portion of the pivot arm 56 is pivotally attached to the lower surface of the winch base 14 by a pivot 57, and is provided in parallel in the lateral direction. The left and right ends between the two and 51 are connected by an interlocking rod 58 to form a parallelogram-shaped link mechanism in plan view.

  Further, the front end portion of each of the left and right side interlocking rods 58 protrudes from the pivotal support portion of the rotating arm 56 to the front side, and is connected to the winch bracket 47 at the front end portion with a spring 59 interposed therebetween. By turning the steering arm 57 around the pivot 55 by the steering, the winch bracket 47 can turn around the pivot 57 of the winch base 14 in the left L and right R directions.

  Then, simultaneously with the steering of the front wheel 1, the winding direction of the wire 8 of the winch reel 12 is turned in the same direction. When the orientation of the reel 12 is fixed, a lock pin is inserted between the lock hole 68 of the rotation arm 56 and the lock hole formed in the winch base 14, so that the rotation arm 56 and the reel 12 can be fixed. The direction can be fixed.

  Next, mainly in FIGS. 9 to 11, in the form in which the winch 7 is driven by the electric motor M and the working machine is pulled and pulled, the motor M of the winch 7 is electrically driven only when the engine 3 is driven. Thus, the controller 60 is configured. The electrification of the winch 7 by the transmission motor M is intended to prevent the battery from going up because the battery tends to go up.

  The winch base 14 at the front end portion of the traveling vehicle body 4 is configured to be front and rear horizontal, and a controller 60 is provided on the upper surface of the winch 7 mounted on the upper surface, and a switch 61 is connected to the controller 60 and a steering post. On / off operation can be performed at the lower part of 23. A battery 62 is mounted inside the dashboard 22, and a motor M control circuit is provided between the battery 62, the engine 3 below the driver seat 21, and the winch motor M. In addition to charging the battery 62, the rotation of the engine 3 is stopped so that the electric output of the motor M is stopped.

  Further, the winch 7 is provided with a motor stop switch 63, and when the winch wire 8 is wound and stored, the switch 63 is turned off to control the motor M not to be electrically driven. Even if the switch 61 of the electric motor M is pressed, the electric motor M is not electrically driven, so that safety can be maintained and malfunction can be prevented.

  A stop switch 63 of the electric motor M is provided at the front end portion of the winch base 14, and a gate-shaped wire guide 65 slidable back and forth with respect to the socket 64 is provided at the front end of the winch base 14. I'm under tension. The wire 8 is passed through the wire outlet 67 of the wire guide 65 and the hook 44 side is pulled forward to guide the traveling vehicle body 4 as the pulling wire 8.

  When the wire 8 is wound around the reel 47, when the hook 44 is engaged with the pull-out port 67, the wire guide 65 is pulled toward the reel 12 against the spring 66 by the winding force, and the wire guide is pulled. The switch 63 is pushed by 65, and the electric motor M is turned off.

DESCRIPTION OF SYMBOLS 1 Front wheel 2 Rear wheel 3 Engine 4 Traveling vehicle body 5 Lifting link 6 Working device 7 Winch 8 Wire 9 Winding port 10 Rear axle 11 Reel shaft 12 Winch reel 13 Turning shaft 14 Winch base

Claims (5)

In the agricultural machine with the working device (6) that can be moved up and down at the rear of the traveling vehicle body (4),
A farm working machine characterized in that a hoisting device (7) for winding the wire (8) and pulling the traveling vehicle body (4) is provided at a front end portion of the traveling vehicle body (4) and at a central position in the left-right direction. Traction device.   The traction device for an agricultural machine according to claim 1, wherein the winding port (9) of the wire (8) of the hoisting device (7) is provided at a position higher than the rear axle (10). .   The traction device for an agricultural machine according to claim 1 or 2, wherein the hoisting device (7) is mounted so as to be movable in a lateral direction with respect to a front end portion of the traveling vehicle body (4).   A hoisting device (7) having a hoisting reel (12) rotating around the reel shaft (11) in the left-right direction is provided around the turning shaft (13) in the up-down direction so as to be able to turn, and the winding The traction device for an agricultural machine according to any one of claims 1 to 3, wherein the winding direction of the fried reel (12) is directed to the tension direction of the wire (8).   5. The hoisting base (14) for supporting and mounting the hoisting device (7) is mounted on the front end portion of the traveling vehicle body (4) in a front-upward inclined posture. A tractor for agricultural machines according to claim 1.

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