JP6662750B2 - Ridger - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for enabling a ridge and a groove between ridges to be neatly shaped in a ridge stand mounted on a walking-type management machine capable of simultaneously running and tilling by arranging a tillage claw on an axle.

  Conventionally, a hitch is provided at the rear of the body frame of the management machine, a support frame is connected and supported on the hitch, and a shaping plate made of a rubber plate is attached to the front of the supporting frame, and a ridge is provided on a lower side of the shaping plate. A tongue for pressing and shaping the lateral end of the bottom surface is provided, and the tongue and the side edges of the shaping plate can be elastically bent rearward by a reaction force pressing the bottom and side surfaces of the ridge in a ridge shaping action posture. The configured technology is known (for example, refer to Patent Document 1).

  In addition, a resistance bar is formed at one end of the tail wheel frame, a tail wheel is supported at the other end, and a support shaft (rotating shaft) is provided at an intermediate portion, and the support shaft is provided at a support portion at a rear portion of the body of the management machine. 2. Description of the Related Art A technique in which a ridge is provided rotatably and a ridge is provided on the front side of the tail wheel is known (for example, see Patent Document 2).

Japanese Patent No. 5069577 JP 2012-90536 A

The support frame in Patent Literature 1 includes an upper horizontal frame portion that is long in the left and right direction at the upper portion, a lower horizontal frame portion that is short in the left and right direction at the bottom, and a vertical frame portion that connects these left and right central portions. The shaping plate is fixed to the front surface, and the lateral outer end and the lower end piece of the shaping plate protrude from the support frame, so that the side surfaces and the bottom surface of the ridge are pressed and shaped after plowing by the plowing rotor. However, since the upper and lower sides of the upper horizontal frame portion and the lower horizontal frame portion were not connected to each other at the upper and lower sides, the strength was not high, and the shaping plate was bent, so that a clean ridge could not be formed. In addition, the support frame is composed of a plane perpendicular to the direction of travel, and the ridges are shaped by pushing on the plane.Therefore, instead of actively flowing the soil to the rear and left and right, the resistance increases and the machine does not move forward. Sometimes it was impossible to do so.
Further, the ridge shaping plate of Patent Document 2 is formed of a heart-shaped plate-like member in rear view, the rear surface of the rubber cover is fixed to the front surface of the ridge shaping plate, and the left side, right side, and upper side of the rubber cover are Because it was configured to protrude greatly from the outer contour of the ridge shaping plate, the rubber cover only elastically bends during ridge work, it is difficult to shape a clean ridge, the width of the groove bottom is narrow, and walking on the groove bottom is difficult. Was difficult, and the slope was easily broken.
Therefore, an attempt is made to provide a ridge stand which can secure a groove bottom width and can tighten a slope, while being a simple ridge stand.

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, in claim 1, the bottom surface and the slope of the groove between the ridges are shaped by the lower side and the side edges of the elastically bendable shaping plate moving after cultivation, and the shaping plate is formed. What is claimed is: 1. A ridge comprising a plate-like supporting frame for supporting a shaping plate on a lower side in a traveling direction of a shaping plate, wherein the supporting frame is provided with a central plane in a horizontal direction orthogonal to a moving direction, and the central plane is wide on a lower side. The upper side is narrower, the lower side of the shaping plate shapes the bottom of the groove, and both sides of the central plane orthogonal to the moving direction of the support frame are inclined toward the lower side in the moving direction as they become more outward. And the shaping plate on which the side edges of the both side planes are located is for shaping the slope on both sides of the groove.

In claim 2, the support frame constituting the ridger is attached to a tail wheel frame for arranging a tail wheel at a rear part of the body of the walking management machine, and at least one tail wheel is located at a center plane of the support frame. Is provided at the rear side in the movement direction on the lower side.
According to claim 3, the tail wheel frame to which the support frame of the ridger is attached has a resistance device formed at one end, a tail wheel attached to the other end, and a rotation shaft protruding from an intermediate portion. Is rotatably attached to the `` resistance bar action position '' and `` ridge ridge / tail wheel action position '' on the support portion attached to the rear part of the body of the walking type management machine, and at the `` ridge setting / tail wheel action position '' A support frame is arranged on the front side of a mounting base mounted on a hitch at the rear of the fuselage, and a tail wheel is arranged on the rear side.

The present invention has the following effects.
The ridge stand can be made with a simple configuration, and the lower side of the center plane of the support frame is wide, so the groove bottom can be shaped into a wide plane, making it easy to walk between ridges and work between ridges . In addition, since the upper side of the center plane of the support frame is narrow and its outer plane is inclined backward, the soil after cultivation can flow smoothly to the left and right, reducing the resistance, reducing the load, and reducing the load with the shaping plate. You can press the slopes on both sides to form a beautiful ridge. In addition, since the soil does not stagnate in front, the spillage from the upper part of the ridger has been reduced.

The whole side view of the management machine provided with the ridger of the present invention. The figure which shows the whole rear view of the management machine provided with the ridger of this invention, and the ridge cross section after shaping. The side view of the attachment which attached the ridger. FIG. The perspective view of a ridger. Rear view of the ridger. The side view of the management machine of the state which works by making the resistance device work.

Next, an embodiment of the management machine 1 including the ridger 70 of the present invention will be described. Note that the F direction will be described as forward.
1 and 2, the management machine 1 has an engine 3 mounted on a body frame 2, and a transmission case 4 is erected at the rear of the engine 3 at the left and right central portions of the body frame 2. A transmission case 5 is disposed between the engine and the engine 3 so that power can be transmitted. At the lower part of the transmission case 4, a tillage shaft 6 is laid horizontally in the left-right horizontal direction, that is, a tillage shaft 6 is provided perpendicular to the direction of travel F, which is a traveling direction. Are fixed radially to constitute the tillage device 10.

  A base of an operation handle 8 is fixedly mounted on an upper portion of the transmission case 4 serving as a rear part of the fuselage, and the operation handle 8 is projected obliquely rearward and upward to form a grip at a rear portion of the operation handle 8 so that an operator can use the handle. A clutch lever 11, an accelerator lever 12, a reverse lever 13 and the like are arranged near the grip. A fuel tank is provided above the engine 3 and is covered by a hood 9. A hitch 15 is provided at a rear portion of the body frame 2, and a work machine such as a resistance bar or a ridger can be mounted on the hitch 15. In the present embodiment, the resistance device 40, the ridger 70, and the tail wheel 43 are integrally configured, and the attachment 20 that can be switched between the “resistance bar action position” and the “ridge / tail wheel action position” is mounted. ing.

The attachment 20 is attached to the hitch 15 via an attachment bracket 54, as shown in FIG.
As shown in FIGS. 3 and 4, the mounting bracket 54 includes a cylindrical mounting base 54 a that is mounted on the hitch 15, the resistance device 40 (the first resistance bar 41 and the second resistance bar 42), the tail wheel 43, and the ridge. It comprises a support boss 54b for mounting the rotary shaft 47 for supporting the container 70, and a connecting body 54c for connecting the mounting base 54a and the support boss 54b.

  The mounting base 54a has a cylindrical shape, and a pin hole 54d is opened at an upper portion thereof. The mounting base 54a is inserted into a cylindrical portion formed at the rear of the hitch 15 to form one of a plurality of pin holes opened in the hitch 15. The pin holes 54d are aligned at a desired height and can be fixed by the fixing pins 16. That is, the height of the resistance device 40 can be adjusted according to the tillage depth.

  A plate-like connecting member 54c is projected from the lower end of the mounting base 54a obliquely rearward and upward, and the front lower surface of the support boss 54b is fixed to the rear end of the connecting member 54c. The axis O1 of the support boss 54b is set to be inclined backward and downward in the front-rear direction. A locking means 60 for fixing the resistance device 40 and the tail wheel 43 at a predetermined angular position is provided on a side surface of the support boss 54b.

  The locking means 60 includes a support 61, a lock pin 62, and a spring 63. The support 61 is formed by bending a plate into a U-shape, fixing the open side to the side of the support boss 54b, and closing the side to the side. The lock pin 62 is inserted from the side, and can be fixed by penetrating the support boss 54b and a rotating shaft 47 described later. A spring 63 is externally fitted to the lock pin 62 in the support body 61 so as to bias the lock pin 62 toward the support boss 54b (lock side). However, the configuration of the locking means 60 is not limited, and a configuration in which the support boss 54b and the rotating shaft 47 are fixed by a bolt or the like may be adopted.

  A rotating shaft 47 is rotatably inserted into the support boss 54b of the mounting bracket 54, and the rotating shaft 47 is fixed at a predetermined angular position by the locking means 60. In other words, a pin hole is opened in the rotation shaft 47 in the diameter direction, and after the rotation shaft 47 is inserted into the support boss 54b, the lock pin 62 can be inserted and fixed into the pin hole of the rotation shaft 47 and the support boss 54b. And

  At the rear end of the rotating shaft 47, the base side of the first resistance rod 41 of the resistance device 40 is fixed so as to be orthogonal. The resistance device 40 is composed of a first resistance bar 41 and a second resistance bar 42, and the first resistance bar 41 is formed of a rod body, as shown in FIG. In the (resistor rod action position), it is disposed so as to assume a forward-downward tilting posture. In other words, the first resistance bar 41 is attached so as to project obliquely downward and forward from the rear of the mounting bracket 54, and one end (front end) is an insertion portion into the soil, and is located below and forward of the attachment portion of the hitch 15. In addition, it is configured to be easily pierced into the soil when moving forward.

  In FIG. 7, a second resistance bar 42 protrudes rearward and downward from an intermediate portion in the longitudinal direction of the first resistance bar 41. The second resistance bar 42 is formed by bending a rod body into a V-shape in a side view, and a lower portion extends downward in a vertical direction. That is, the lower end of the second resistance bar 42 is configured to face in the vertical direction. Thus, the first resistance rod 41 and the second resistance rod 42 are formed in a substantially “h” shape in side view, and the tip (lower end) of the second resistance rod 42 is disposed behind the mounting base 41 c of the resistance device 40. It extends downward in the vertical direction.

  The other end (upper end) of the first resistance bar 41 is a tail wheel frame 48, and an axle 45 is provided at the tip of the tail wheel frame 48 in the lateral direction. In the present embodiment, the tail wheel frame 48 and the first resistance bar 41 are integrally formed on an extension of one rod body, but may be formed of another member. On both sides of the axle 45, tail wheels 43 are rotatably supported. At the left and right center of the axle 45, a mounting plate 46 for mounting the ridge 70 is fixedly provided. The tail wheel 43 may be a single wheel.

  In such a configuration, in a state where the rotary shaft 47 is fixed so that the first resistance bar 41 and the second resistance bar 42 face downward, the first resistance bar 41 and the second resistance bar 42 are buried in the soil during plowing work. , And the resistance is given, and the field is plowed by rotation of the plowing claws 7, 7,.... Since the first resistance bar 41 is configured to protrude diagonally forward and downward downward, the dash can be prevented since the first resistance bar 41 advances forward so as to bite into the soil even in a hard field.

  Also, when moving during non-working or performing ridge work, the lock pin 62 is pulled out to release the lock, and the attachment 20 is rotated 180 degrees about the rotation shaft 47, as shown in FIG. The tail wheel 43 is positioned below, and the lock pin 62 is inserted and fixed again. In this manner, the attachment 20 can be switched from the “resistance bar action position” to the “ridge standing / tail wheel action position”. At this time, the rotating shaft 47 projects downward and the tail wheel frame 48 is attached to the rear of the rotating shaft 47, so that the ridge 70 can be positioned in front of the rotating shaft 47, and the "resistance rod" When switching between the "operating position" and the "ridge / tail wheel operating position", the resistance device 40 and the ridger 70 rotate left and right outward of the mounting bracket 54, and when the ridger 70 is positioned above, the mounting bracket 54 is rotated. The switch can be easily switched without hitting the hitch 15 or the handle base.

  In addition, in the “row ridge / tail wheel action position”, the tilling device 10 is operated in the field to move forward, thereby performing the ridge work. In the “ridge and tail wheel action position”, since the shaping plate 74 described later is located in front of the mounting base 54a, the upper portion of the shaping plate 74 can be configured to be higher than the rotary shaft 47. It can be configured to be longer in the vertical direction than in 2), and a large ridge can be shaped. In this "row ridge / tail wheel action position", by lowering the operating handle 8 on the road or the hard ground to lift the tillage device 10 from the surface of the ground and grounding only the tail wheel 43, the tail wheel 43. 43 allows the management machine 1 to be easily moved.

Next, the ridge 70 will be described with reference to FIGS. In addition, in the state where the attachment 20 is set to the “ridge standing / tail wheel action position” shown in FIG.
The ridger 70 includes a mounting frame 71, a reinforcing plate 72, a support frame 73, and a shaping plate 74, and is arranged in front of the tail wheel 43 and behind the tillage device 10. That is, the ridger 70 is disposed between the tillage device 10 and the tail wheel 43. In a state where the management machine 1 is stationary on a horizontal surface when not working, the tillage claw 7 and the tail wheel 43 are in contact with the ground, and the lower end of the ridger 70 is in a floating state. In other words, the height of the ridge 70 is set to be higher than the lower end of the tail wheel 43, and prevents the lower end of the shaping plate 74 from being grounded and deformed when stored in a warehouse or the like.

  As shown in FIG. 5, the mounting frame 71 has the front end of a plate long in the front-rear direction fixed to the lower left and right center rear surfaces of the support frame 73 by welding or the like, and fixed holes 71a. An opening 71a is fixed to a mounting plate 46 fixed to the axle 45 so as to be detachable with bolts or the like.

  The reinforcing plate 72 is formed between a mounting frame 71 and a support frame 73 by forming the plate into a trapezoidal shape in a side view. That is, the rear lower side of the reinforcing plate 72 is fixed to the rear upper surface of the mounting frame 71 so that the plate surface faces in the left-right direction, and the front side of the reinforcing plate 72 is fixed to the left and right center rear surfaces of the upper and lower middle portions of the support frame 73. Has been established.

  As shown in FIG. 6, the support frame 73 is formed of a steel plate, and is formed in an isosceles trapezoidal shape whose upper side (upper bottom) is longer than the lower side (lower bottom) when viewed from the rear. A lower center (lower bottom) 73aB is longer than the upper side (upper bottom) 73aU to form an isopod trapezoidal central plane 73a. The central plane 73a is a horizontal plane orthogonal to the traveling direction, and horizontal planes 73b are continuously formed on both left and right sides of the central plane 73a. A slightly larger shaping plate 74 is fixed to the front surface of the support frame 73.

  The center plane 73a is located at the center of the support frame 73 in the left and right direction, and is a trapezoid or an isosceles triangle in which the upper side 73aU is narrow and the lower side 73aB is wide. The front end of the mounting frame 71 is fixed to the lower rear surface of the central plane 73a, and the front upper end of the reinforcing plate 72 is fixed to the left and right central rear surfaces of the central plane 73a in the vertical middle. Thus, in a state where the support frame 73 is attached to the attachment plate 46, as shown in FIG. 3, the center plane 73a is inclined forward with respect to the traveling direction. The soil flows downward.

  The two side planes 73b are formed so that the left and right sides (trapezoidal left and right legs) of the central plane 73a are folded, and as shown in FIG. You. That is, both side surfaces 73b are bent obliquely rearward from both left and right sides of the central plane 73a. In this manner, the shaping plate 74 fixed to the front surface of the support frame 73 is bent backward at an obtuse angle to have a V-shape in plan view, and the soil is caused to flow to the left and right as indicated by the arrow during the upright ridge work. .

  The shaping plate 74 is made of an elastic body that can be elastically bent such as rubber or synthetic resin. In the present embodiment, the shaping plate 74 is made of EVA resin. The shaping plate 74 is configured in a trapezoidal shape in which the support frame 73 is slightly larger. That is, the shaping plate 74 is configured to be longer than the support frame 73 by a predetermined length in the vertical and horizontal directions. The upper side of the shaping plate 74 is formed in a chevron shape at the center in the left and right directions. That is, the length of the shaping plate 74 protruding upward from the support frame 73 at the center in the left and right direction is longer than that of the left and right sides, and When attached to the tail wheel frame 48 in a tilted posture, the left and right centers are prevented from lowering, so that the soil cultivated from the upper part of the left and right center shaping plate 74 does not climb backward and spill during the ridge work. . In other words, if the soil spills to the bottom of the groove, the appearance of the finish is poor, the groove becomes shallow, and a groove wiping operation is required. Therefore, the soil is prevented from climbing over the top of the shaping plate 74 as much as possible.

  The tail wheels 43 are arranged behind both ends of the lower side 73aB of the central plane 73a of the support frame 73, and the length of the shaping plate 74 protruding downward from the lower end of the support frame 73 is deformed rearward. Also, the length of the tail wheel 43 is sufficient to hold down the groove bottom, and the tail wheel 43 cannot be stepped on when bent and deformed. In other words, the tail wheel 43 is arranged close to the ridge 70 so as not to step on the lower part of the shaping plate 74, and the tail wheel 43 is arranged as far forward as possible so that the feet of the worker do not hit at the time of work. I have.

  The shaping plate 74 is fixed to the front surface of the support frame 73 by a plurality of bolts and nuts 75. In the present embodiment, the four corners near the top of the trapezoid of the support frame 73 are fixed by bolts / nuts 75/75/75/75. Thus, the shaping plate 74 is tightly fixed to prevent the shaping plate 74 from turning up and peeling off even when the management machine 1 is moved backward, and also facilitates replacement and maintenance.

  When the ridge work is performed by the management machine 1 configured as described above, first, the attachment 20 is positioned at the lower side with the resistance device 40 fixed by the locking means 60 to the “resistance rod operation position”, and the tillage device 10 is operated. Tillage is performed to soften the soil in the field. Next, the locking means 60 is released, and the attachment 20 is rotated so that the ridge 70 faces downward, and is fixed by the locking means 60 as the “ridge-tail wheel action position”. In this state, when the management machine 1 is moved forward while plowing, the ridge 30 (FIG. 2) is shaped by the ridger 70. At this time, the soil plowed on the central plane 73a of the ridger 70 flows downward, and the shaping plate 74 is pressed by the lower side 73aB of the central plane 73a. Hold down 31 and compact the soil to shape.

  And since the upper part of the ridger 70 has a bow shape in a plan view, the soil is flowed to the right and left as it advances, and the right and left ridges 30 are formed by the elasticity of the shaping plate 74 at the left and right rear portions of the both-side flat surfaces 73b and 73b. The surfaces 32, 32 are pressed and compacted, and the slopes 32, 32 are prevented from collapsing and can be finished into a clean ridge 30. In addition, although the shaping plate 74 cannot be bent neatly at the boundary between the lower part of the slopes 32 and the bottom of the groove 31, the tail wheels 43, 43 pass through this part, and are compacted by the tail wheels 43. As a result, the groove bottom surface 31 can be finely finished.

  As described above, the bottom surface 31 of the groove between the ridges 30 and the slope 32 of the ridge 30 are shaped with the lower side and the side edge of the elastically bendable shaping plate 74 that moves after tilling by the tillage device 10. And a ridge 70 provided with a plate-like support frame 73 for supporting the shaping plate 74 on the lower side in the traveling direction of the shaping plate 74, wherein the support frame 73 has a horizontal direction orthogonal to a moving direction. The central plane 73a is formed such that the lower side 73aB is wider, the upper side 73aU is narrower, and the lower side of the shaping plate 74 shapes the groove bottom 31 so that the groove bottom 31 is formed in a wide plane. Thus, it is possible to easily work such as walking on the groove bottom 31 and sowing or planting on the ridge 30 located on the groove bottom 31.

  Further, on both outer sides of a central plane 73a orthogonal to the moving direction of the support frame 73, there are provided both side planes 73b and 73b which are inclined toward the lower side in the moving direction toward the outside, and the side edges (outside sides) of the both side planes 73b are provided. The shaping plate 74 where the brackets () are located shapes the slope 32 on both sides of the groove, so that the soil is flown to the left and right as it progresses, and the soil is compacted at the side edges of the both-side flat surface 73 b. At this time, the resistance was large because the conventional support frame was orthogonal to the traveling direction, but in the present invention, the resistance is reduced and the load is reduced because the two side planes 73b and 73b are arranged diagonally. Therefore, the soil does not stagnate in the front, and flows to the left and right sides of the shaping plate 74, so that the slopes 32 can be shaped.

  Further, the support frame 73 constituting the ridger 70 is attached to a tail wheel frame 48 for arranging the tail wheel 43 on the rear part of the body of the walking management machine 1, and at least one tail wheel 43, the present embodiment. Since the two tail wheels 43 on the left and right sides are provided behind the lower side 73aB of the center plane 73a of the support frame 73 on both sides in the movement direction, the tail wheel 43 rolls on the groove bottom 31 between the ridges 30. The groove depth can be stabilized. Further, both sides of the groove bottom 31 formed by the right and left tail wheels 43 can be pressed down, and a clean groove can be formed.

  The tail wheel frame 48 to which the support frame 73 of the ridge 70 is attached has the resistance device 40 formed at one end, the tail wheel 43 attached at the other end, and the rotating shaft 47 protruding from the intermediate portion. The rotating shaft 47 is rotatably mounted on a mounting bracket 54 serving as a support portion which is mounted on the rear of the body of the walking-type management machine 1 so as to be adjustable up and down, at a "resistance bar action position" and a "ridge standing / tail wheel action position". Since the rotating shaft 47 protrudes rearward and downward, the ridge 70 can be located in front of the mounting base 54a, so that the "resistance rod operating position" and the "ridge standing / tail wheel operating position" can be set. When switching, the support frame 73 can be easily switched without hitting the hitch 15 or the handle base. In addition, the shaping plate 74 can be configured to be longer in the vertical direction than in the related art, and a large ridge can be shaped.

  Further, in the “ridge standing / tail wheel action position”, the support frame 73 is arranged on the front side of the mounting base 54 a to be attached to the hitch 15 at the rear of the fuselage, and the tail wheel 43 is arranged on the rear side. Can be arranged close to the tillage device 10, so that the rotation of the tillage soil increases, the soil breaking property is improved, the flow of the soil from the shaping plate 74 in the left and right direction is improved, and the ridge can be easily formed. In other words, the tail wheel 43 is located at the rear portion of the support frame 73, so that the management machine 1 can stably stand alone.

Reference Signs List 1 management machine 10 tillage device 30 ridge 31 groove bottom 32 slope 40 resistance device 43 tail wheel 48 tail wheel frame 70 ridge 73 support frame 73a central plane 73aB lower side 73aU upper side 73b both side plane 74 shaping plate

Claims (3)

  The bottom and side edges of the elastically bendable shaping plate that moves after cultivation are configured to shape the bottom of the groove between the ridges and the slope of the ridge, and a plate-like support frame that supports the shaping plate is provided. A ridge stand provided on the lower side in the traveling direction of the shaping plate, wherein the support frame is provided with a central plane in the left-right direction orthogonal to the moving direction, and the central plane is wider on the lower side and narrower on the upper side, The lower side of the shaping plate shapes the bottom surface of the groove, and further, on both outer sides of a central plane orthogonal to the moving direction of the support frame, there are provided both side planes which are inclined toward the lower side in the moving direction as they become outer, and the sides of the both side planes are provided. A ridger wherein the shaping plate on which the edge is located shapes the slope on both sides of the groove.   The support frame constituting the ridger is attached to a tail wheel frame for arranging a tail wheel at the rear part of the body of the walking type management machine, and at least one tail wheel moves in the lower side of the center plane of the support frame in the moving direction. The ridger according to claim 1, wherein the ridger is provided rearward.   The tail wheel frame to which the support frame of the ridger is attached, a resistance device is formed at one end, a tail wheel is attached at the other end, a rotation shaft is projected from an intermediate portion, and the rotation shaft is a walking type management machine. At the support section attached to the rear of the fuselage, it is rotatably attached to the "resistance rod action position" and "ridge and tail wheel action position", and is attached to the hitch at the rear of the aircraft at the "ridge and tail wheel action position" The ridger according to claim 2, wherein a support frame is disposed on a front side of the mounting base, and a tail wheel is disposed on a rear side.

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