JP2016220610A - Carriage equipped with water supply tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carriage that is equipped with a water supply tank, and can smoothly supply water in the tank to another work vehicle (transplanter, etc.) equipped with a watering device.SOLUTION: A carriage comprises: a deck; a travel device which supports the deck in a travelable manner; a motor which is mounted on the deck and drives the travel device; a water supply tank which is mounted on the deck and pools water; a pump which is mounted on the deck and pumps up water from water supply tank; a supply hose which feeds water discharged from the pump to a feeding target; a return hose which returns water from the feeding target to the water supply tank; a hose support member which supports the supply hose and the return hose while determining an extending directions of the hoses.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a carriage including a water supply tank that supplies water to, for example, an irrigation apparatus.

  DESCRIPTION OF RELATED ART Conventionally, the agricultural liquid material supply apparatus which mounts the tank for supplying liquid materials, such as water, to the crop of a farm field in a driving | running | working trolley is known (refer patent document 1). The apparatus described in Patent Document 1 includes a storage tank for a liquid material, a pump for pumping the liquid material in the storage tank, and a crop spraying device mounted on a traveling carriage.

Utility Model Registration No. 2599522

  However, the device described in Patent Document 1 is configured to spray water in a storage tank on a field using a spray device (irrigation device) included in the device. That is, the apparatus of Patent Document 1 is not supposed to supply water in the storage tank to other work vehicles (such as a transplanter) equipped with an irrigation apparatus. In the apparatus of Patent Document 1, if the water in the storage tank is to be supplied to the irrigation apparatus of another work vehicle (such as a transplanter), the hose is extended from the pump and connected to the irrigation apparatus. However, the apparatus of Patent Document 1 does not have a configuration for determining and supporting the extending direction of the hose. Therefore, the hose connecting the storage tank mounted on the traveling cart and the irrigation device mounted on the work vehicle (such as a transplanter) may hang down on the ground, and the travel of the traveling cart or the work vehicle may be hindered.

  The present invention has been made to solve the above-described problems of the prior art, and supplies water in a water supply tank to another work vehicle (such as a transplanter) equipped with an irrigation device. An object of the present invention is to provide a carriage that can be used and the hose used for the supply does not interfere with the running of the carriage or work vehicle.

The technical means taken by the present invention to solve the technical problems are characterized by the following points.
A cart according to a first aspect of the present invention includes a loading platform, a traveling device that supports the loading platform so as to travel, a prime mover that is mounted on the loading platform and that drives the traveling device, and is mounted on the loading platform and stores water. A water supply tank, a pump mounted on the loading platform and sucking up water from the water supply tank, a supply hose for sending water discharged from the pump to a supply target, and a return hose for returning water from the supply target to the water supply tank And a hose support member that determines and supports the extending direction of the supply hose and the return hose.

In the cart of the invention according to claim 2, the hose support member can be changed into a first form extending forward of the cargo bed and a second form extending left or right of the cargo bed. ing.
According to a third aspect of the invention, the carrier is provided at a side portion of the carrier, a side frame that supports the hose support member in the first form, and a front portion of the carrier. And a front frame for supporting the hose support member in the second form.

The cart of the invention according to claim 4 is characterized in that the hose support member includes a main body having a hose arrangement portion in which the supply hose and the return hose are arranged, and a hose fixed to the main body and arranged in the hose arrangement portion. A holding member for holding the side plate, the hose disposition portion includes a side plate that abuts along the frame, an upper plate extending from the upper portion of the side plate in a direction away from the frame, and the side plate. A lower plate portion extending in a direction away from the frame, and the holding member is provided across the extended end portion of the upper plate portion and the extended end portion of the lower plate portion. ing.

In the cart of the invention according to claim 5, the supply hose and the return hose are arranged in parallel in the top and bottom in the hose arrangement part.
In the cart of the invention according to claim 6, the water supply tank and the pump are arranged in parallel in the width direction of the cargo bed.
According to a seventh aspect of the invention, the prime mover and the pump are arranged in parallel in the front-rear direction.

The present invention has the following effects.
The cart includes a loading platform, a traveling device that supports the loading platform so as to be able to travel, a prime mover that is mounted on the loading platform and drives the traveling device, a water supply tank that is mounted on the loading platform and stores water, and a water supply tank that is mounted on the loading platform. A pump for sucking water from the pump, a supply hose for sending the water discharged from the pump to the supply target, a return hose for returning the water from the supply target to the water supply tank, and an extending direction of the supply hose and the return hose are determined and supported A hose support member. Therefore, the water in the water supply tank can be smoothly supplied to other work vehicles (such as a transplanter) equipped with an irrigation device. In addition, it has a hose support member that supports the direction of extension of the supply hose and return hose, so the supply hose and return hose are connected to the irrigation device of another work vehicle (such as a transplanter) without being lowered to the ground. can do. Therefore, the supply hose and the return hose do not hinder the traveling of other work vehicles such as a carriage and a transplanter.

  Further, the hose support member can be changed to a first form extending forward of the loading platform and a second configuration extending to the left or right of the loading platform, so that the supply hose and the return hose can be changed. The extending direction can be determined in front of the loading platform, or left or right of the loading platform. Therefore, even when another work vehicle (such as a transplanter) equipped with an irrigation device is located in front of the carriage, or is located on the left or right side of the carriage, the supply hose and the return are supplied to the work vehicle. Water in the water supply tank can be supplied without lowering the hose to the ground.

Further, the loading platform is provided on the side of the loading platform to support the hose support member in the first form, and the front portion is provided in the front of the loading platform to support the hose support member in the second form. By having the frame, the hose support member can be reliably supported in the first form or the second form.
Moreover, the hose support member has a main body having a hose arrangement portion in which the supply hose and the return hose are arranged, and a holding member that holds the hose that is fixed to the main body and arranged in the hose arrangement portion. The hose arrangement portion includes a side plate portion that abuts along the frame, an upper plate portion that extends from the upper portion of the side plate portion in a direction away from the frame, and a lower plate that extends from the lower portion of the side plate portion in a direction away from the frame. And a plate portion. The holding member is provided across the extending end portion of the upper plate portion and the extending end portion of the lower plate portion. Therefore, the supply hose and the return hose can be held by the holding member in a state where the supply hose and the return hose are arranged in the hose arrangement portion, and reliable holding is possible.

Further, the supply hose and the return hose are arranged in parallel in the upper and lower sides in the hose arrangement part, so that the supply hose and the return hose can be arranged in the vicinity of the cargo bed, and the hose arrangement part is located on the front or side of the cargo bed It does not protrude greatly.
Further, since the water supply tank and the pump are arranged in parallel in the width direction of the loading platform, the side space of the water supply tank can be effectively used. In addition, the length of the hose connecting the water supply tank and the pump can be shortened, and the front and rear lengths of the loading platform can be shortened.

  Further, since the prime mover and the pump are juxtaposed in the front-rear direction, it is possible to ensure better visibility as compared with the case where the water supply tank is arranged in front of the prime mover while effectively utilizing the front space of the prime mover.

It is a side view of a trolley. It is a top view of a trolley. It is a top view of the trolley | bogie which removed the multi-film laying apparatus. It is the figure which looked at the loading platform front part from the right side. It is a side view which shows the state which attached the hose support member to the loading platform. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a fragmentary top view which shows the state which attached the hose support member to the loading platform. FIG. 10 is an enlarged view inside the ellipse of FIG. 9, which is a cross-sectional view taken along the line DD of FIG. 6. It is a top view which shows the state which attached the hose support member to the right side frame. It is a top view which shows the state which attached the hose support member to the left side frame. It is a top view which shows the state which attached the hose support member to the front part frame, and was extended in the right side. It is a top view which shows the state which attached the hose support member along the front part frame, and was extended to the left. It is a top view which shows the state which accommodated the hose support member. It is a top view of a multifilm installation apparatus. It is a top view which shows the periphery of a ridge molding machine. It is a side view which shows the periphery of a ridge molding machine. It is a side view which shows the state which retracted the multifilm laying apparatus upwards. It is a fragmentary top view of a multifilm laying apparatus. It is a top view of a direction adjustment mechanism. It is a side view of an earth covering device and a film presser. It is a partial side view of a roll supporter. It is a side view of a transplant machine. It is a top view of a transplant machine. It is a side view of an airframe. It is a left side view of an irrigation apparatus. It is a plane sectional view of an irrigation apparatus. It is a back sectional view of an irrigation apparatus. It is a side view of the right side of an irrigation apparatus. It is side surface sectional drawing of the left side of an irrigation apparatus. FIG. 32 is an arrow C view of FIG. 31. FIG. 32 is an arrow D diagram of FIG. 31. It is a rear view of a cam drive shaft, a cam, and a cam adjustment mechanism. It is a side view of a cam. It is a side view of a cam adjustment mechanism. It is a side view which shows the action | operation of an opening-and-closing lid. It is a side view of an implantation apparatus. It is a top view of a transplant device. It is a top view of another form of an transplant device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are views showing a cart 300 according to the present invention. FIG. 1 is a side view and FIG. 2 is a plan view. The cart 300 includes a loading platform 301, a traveling device 302, a prime mover 303, and a multifilm laying device 304.
In the following description, the arrow A1 direction in FIGS. 1 and 2 is the front, the arrow B direction in FIGS. 1 and 2 is the rear, the arrow B1 direction in FIG. 2 is the right, and the arrow B2 direction in FIG. Moreover, as shown in FIG. 2, the horizontal direction K1 which is a direction orthogonal to the front-back direction of the trolley | bogie 300 is demonstrated as a carrier width direction. In addition, the direction K2 from the central part of the carriage 300 toward the right part or the left part will be described as the outside of the loading platform. In other words, the outside of the loading platform is the loading platform width direction and the direction away from the carriage 300. The direction K3 opposite to the outside of the loading platform will be described as the loading platform inside. In other words, the inside of the loading platform is the loading platform width direction and the direction approaching the carriage 300.

As shown in FIGS. 1 and 2, the loading platform 301 is configured to be able to mount a load such as a water supply tank 311 and a pump 312 described later, and is formed in a rectangular shape in plan view. As shown in FIG. 3, the loading platform 301 includes a frame 305 and an upper plate 306.
The frame 305 is a rectangular tube-shaped member, and is formed from a highly rigid material such as a steel material. The frame 305 includes side frames 305SR and 305SL, a front frame 305F, a rear frame 305R, and an inner frame 305I.

The side frame 305SR is disposed on the right side of the loading platform 301 and extends in the front-rear direction. The side frame 305SL is disposed on the left side of the loading platform 301 and extends in the front-rear direction. The front frame 305 </ b> F is disposed at the front portion of the loading platform 301 and extends in the loading platform width direction. The rear frame 305R is disposed at the rear portion of the loading platform 301 and extends in the loading platform width direction.
A rectangular outer frame of the loading platform 301 is formed by the side frames 305SR and 305SL, the front frame 305F, and the rear frame 305R. In the present embodiment, the lengths of the side frames 305SR and 305SL are larger than the lengths of the front frame 305F and the rear frame 305R. Therefore, the loading platform 301 is longer in the front-rear direction than in the loading platform width direction.

The inner frame 305I is provided inside the outer frame of the loading platform 301, and extends in the front-rear direction or the loading platform width direction. The inner frame 305I connects the side frame 305SR and the side frame 305SL. Further, the inner frame 305I connects the front frame 305F and the rear frame 305R.
As shown in FIGS. 1, 3, and 4, a holder 325 for attaching a main body 323 to be described later is provided on the right surface of the side frame 305 </ b> SR, the left surface of the side frame 305 </ b> SL, and the front surface of the front frame 305 </ b> F. ing. An annular edge portion for forming a first hole 326 for inserting a pin 327 described later is formed on the right surface of the side frame 305SR, the left surface of the side frame 305SL, and the front surface of the front frame 305F. .

Hereinafter, with respect to the frame 305, the surface near the center of the loading platform 301 may be referred to as a frame inner surface, and the surface opposite to the frame inner surface and away from the center of the loading platform 301 may be referred to as a frame outer surface. .
The holder 325 is formed from a metal plate bent in an L shape. In the present embodiment, the holder 325 is provided in front of the side frames 305SR and 305SL. Further, the holder 325 is also provided on the right side and the left side of the front frame 205F.

  An annular edge portion forming the first hole 326 is provided at a position where the inner surface of the frame and the outer surface of the frame are opposed to each other. In the present embodiment, the annular edge forming the first hole 326 is provided on the front and rear sides of the side frames 305SR and 305SL. Further, the annular edge portion forming the first hole 326 is also provided near the center of the front frame 305F in the loading platform width direction. That is, the ring-shaped edge part which forms the holder 325 and the 1st hole 326 is provided in the position shifted | deviated to the front-back direction or the bed width direction.

  As shown in FIGS. 1 to 3, the rear portions of the side frames 305SR and 305SL protrude rearward from the rear frame 305R, and a later-described support shaft 401 is attached to the protruding portion. Further, as shown in FIGS. 1, 3, and 4, hooks 329 are provided on the lower surface of the front part and the lower surface of the rear part of the side frames 305SR and 305SL. For example, a rope or the like can be hooked on the hook 329 to pull the carriage 300.

The upper plate 306 is fixed to the upper part of the frame 305 and forms the upper surface of the loading platform 301. The upper plate 306 is composed of a plurality of thin plates (in this embodiment, five metal thin plates), and is fixed to the upper portion of the frame 305 with bolts (not shown).
As shown in FIG. 2, the upper surface of the loading platform 301 has a first region 301a, a second region 301b, and a third region 301c. A water supply tank 311 and a pump 312 are mounted in the first region 301a. A prime mover 303 is mounted in the second area 301b. There is no permanent load in the third region 301. Therefore, the third area 301 can be used as a space for placing necessary items according to the type of work, and contributes to improvement in workability.

  The first region 301 a is a region formed by the upper surfaces of the four upper plates 306 provided on the front side of the loading platform 301. The second region 301b is a region formed by the inner frame 305I and the side frame 305SL provided on the rear side and the left side of the loading platform 301. The second region 301b is not covered with the upper plate 306, and the inner frame 305I is exposed in a top view. The prime mover 303 is fixed on the exposed inner frame 305I. The third region 301 c is a region formed by the upper surface of one upper plate 306 provided at the rear and right side of the loading platform 301.

Accordingly, a first region 301 a is formed at the front portion of the loading platform 301. A second region 301b is formed at the rear and left side of the loading platform 301. A third region 301 b is formed at the rear and right side of the loading platform 301.
As shown in FIG. 1, a track frame 313 is provided below the loading platform 301. The track frames 313 are respectively provided at the lower right portion and the lower left portion of the loading platform 301, and a traveling device 302 is attached to each track frame 313.

  Each track frame 313 includes vertical members 313a and 313b, horizontal members 313c and 313d, and diagonal members 313e, 313f, and 313g. The vertical members 313a and 313b are provided at intervals in the front-rear direction, and the vertical members 313a and 313b are fixed to the lower portion of the inner frame 305I and extend downward. The front vertical member 313 a is provided in the vicinity of a midway portion of the loading platform 301 in the front-rear direction. The rear vertical member 313b is provided in a portion near the rear portion of the loading platform 301. The cross members 313c and 313d are provided at intervals in the vertical direction, and the cross members 313c and 313d connect the front vertical member 313a and the rear vertical member 313b. The lower cross member 313d extends in front of the vertical member 313a and rearward of the vertical member 313b. Of the diagonal members 313e, 313f, and 313g, the upper front diagonal member 313e connects the upper portion of the front vertical member 313a and the inner frame 305I. The lower front diagonal member 313f connects the lower portion of the front vertical member 313a and the vicinity of the front end of the lower horizontal member 313d. The rear diagonal member 313g connects the lower portion of the rear vertical member 313b and the vicinity of the rear end portion of the lower horizontal member 313d.

The traveling device 302 supports the loading platform 301 so that it can travel. The traveling device 302 is provided on each of the right side and the left side of the loading platform 301. The distance between the right traveling device 302 and the left traveling device 302 (the distance in the loading platform width direction) is set to an interval that can straddle the basket 4 formed in the field.
As shown in FIG. 1, the traveling device 302 is a crawler traveling device, and includes a drive sprocket 307, a front driven wheel 308 </ b> F, a rear driven wheel 308 </ b> R, a wheel 309, and a crawler belt 310. . The drive sprocket 307 is disposed near the upper portion and the rear portion between the front driven wheel 308F and the rear driven wheel 308R. A plurality of roller wheels 309 are provided between the front driven wheel 308F and the rear driven wheel 308R. The crawler belt 310 has an endless belt shape and is wound around the drive sprocket 307, the driven wheels 308 </ b> F and 308 </ b> R, and the wheel 309. The drive sprocket 307 rotates around the horizontal axis by the drive of the prime mover 303 fixed to the upper part of the loading platform 301. Thereby, the crawler belt 310 is circulated in the circumferential direction, and the carriage 300 moves forward or backward. The traveling device 302 may be a wheel-type traveling device.

  The prime mover 303 drives the traveling device 302, and an engine is used in this embodiment. The prime mover 303 is connected to the traveling device 302 via a power transmission mechanism (not shown). As shown in FIG. 2, the prime mover 303 is mounted in the second region 301 b of the loading platform 301. Specifically, the prime mover 303 is disposed at a position closer to one side (leftward) and rearward in the width direction of the loading platform 301 and is fixed to the upper portion of the inner frame 305I.

  As shown in FIGS. 1 and 2, the prime mover 303 is disposed inside the cover 314. The cover 314 has a substantially rectangular parallelepiped shape with the lower part opened, and covers the upper side, the side, and the rear of the prime mover 303. A handle 315 is attached to the position on the upper right side of the cover 314 at the rear right side. The handle 315 is a portion to be gripped when the operator moves the carriage 300, and is located at a position shifted to one side (left side) from the width direction center C1 of the loading platform 301 as shown in FIG. As a result, the worker can walk one side (left side) behind the carriage 300 while facing the front and holding the handle 315, and is excellent in workability.

  As shown in FIGS. 1 and 2, a plurality of operation levers 316 are provided at the rear left side of the cover 314. The operation lever 316 is at a position shifted from the width direction center C3 of the water supply tank 311 to one side (left side). The plurality of operation levers 316 protrude upward from the rear left side position of the upper surface of the cover 314. The operation lever 316 is a lever for operating the traveling device 302, and includes a traveling clutch lever 316A, side clutch levers 316B and 316C, and a brake lever 316D. The traveling clutch lever 316A is a lever that connects or blocks transmission of the prime mover 303 to the traveling device 302. The side clutch lever 316B is a lever that operates a right steering clutch that stops driving the right traveling device 302 and changes the direction of the carriage 300. The side clutch lever 316C is a lever that operates the left steering clutch that stops the driving of the left traveling device 302 and changes the direction of the carriage 300. The brake lever 316D is a lever that switches on and off a brake (not shown).

  As shown in FIG. 2, the operation lever 316 is located closer to one side (left side) in the width direction of the loading platform 301 and one side (left side) of the handle 315. Further, the operation lever 316 is located at a position shifted from the width direction center C2 of the multi-film laying device 304 to one side (left side). In addition, the width direction center C1 of the loading platform 301 and the width direction center C2 of the multi-film laying device 304 are on the same straight line in the loading platform width direction. Accordingly, the operator can operate the operation lever 316 while facing the front and walking on one side (left side) of the multi-film laying device 304 behind the cart 300. Excellent in properties.

  The water supply tank 311 is a tank that stores water for supplying water to the irrigation apparatus 18 that irrigates seedlings planted in the cocoon. The irrigation device 18 is provided in the transplanter 1 described later. As shown in FIGS. 1 and 2, the water supply tank 311 is mounted on the front portion of the loading platform 301 and in the vicinity of the center of the loading platform 301 in the width direction. In addition, the width direction center C3 of the water supply tank 311 is located at a position shifted from the width direction center C1 of the loading platform 301 to the opposite side (right side) of the cover 314 of the prime mover 303 in the loading platform width direction. Thereby, when the operator operates the operation lever 316 while walking behind the cart 300, the front view can be prevented from being blocked by the water supply tank 311.

  As shown in FIGS. 2 and 4, the water supply tank 311 is fixed on the cargo bed 301 by a plurality of (two in this embodiment) bands 317. The band 317 includes a band-like body 317A, a locking tool 317B, and a length adjusting tool 317C. The locking tool 317B includes a substantially J-shaped hook attached to both ends of the belt-like body 317A. The length adjuster 317C adjusts the length of the strip 317A in accordance with the size of the water supply tank 311.

  As shown in FIGS. 2 to 4, the loading platform 301 is provided with a locking portion 318 for locking the locking tool 317 </ b> B of the band 317. The locking portion 318 is formed of a square ring-shaped metal fitting, and is provided in front of and behind the first region 301a of the loading platform 301, respectively. The front locking portion 318 is fixed to the front frame 305F, and the rear locking portion 318 is fixed to the inner frame 305I.

As shown in FIGS. 2 and 4, one locking tool 317 </ b> B of the band 317 is locked to the front locking portion 318, and the band 317 is stretched from the front to the rear of the water supply tank 311. The water supply tank 311 is securely fixed on the loading platform 301 by locking the locking tool 317B to the locking portion 318 at the front.
The pump 312 is a pump that draws water from the water supply tank 311 and is driven by the prime mover 303. As shown in FIGS. 1 and 2, the pump 312 and the prime mover 303 are arranged side by side in the front-rear direction. Specifically, the pump 312 is disposed in front of the prime mover 303. The pump 312 and the water supply tank 311 are arranged side by side in the loading platform width direction. Specifically, the pump 312 is disposed on the left side of the water supply tank 311.

As shown in FIG. 1, a suction hose 319 for sucking water toward the pump is connected to the suction port of the pump 312. A supply hose 320 for supplying water from the pump is connected to the discharge port of the pump 312.
As shown in FIG. 5, the suction hose 319 is connected to the water supply tank 311. In this embodiment, the suction hose 319 is connected to the water supply tank 311 by inserting the end of the suction hose 319 into the water supply tank 311. The connection of the suction hose 319 to the water supply tank 311 is not limited to the above-described embodiment. For example, the water supply tank 311 may be provided with a discharge unit that discharges water to the outside, and the suction hose 319 may be connected to the discharge unit.

  The water supply tank 311 is connected to the irrigation tank 193 through a return hose 321 described later. In this embodiment, the return hose 321 is connected to the water supply tank 311 by inserting the end of the return hose 321 into the water supply tank 311. Note that the connection of the return hose 321 to the water supply tank 311 is not limited to the above-described embodiment. For example, a water supply unit that supplies water to the water supply tank 311 may be provided, and the hose 321 may be connected to the water supply unit.

The supply hose 320 is connected to a supply target of water stored in the water supply tank 311. In the present embodiment, the supply target is the irrigation tank 193 of the irrigation apparatus 18. The configurations of the irrigation device 18 and the irrigation tank 193 will be described later.
Thereby, the water stored in the water supply tank 311 is sucked up through the suction hose 319 by driving the pump 312 and sent to the irrigation tank 193 through the supply hose 320. Further, surplus water that has not been used in the irrigation device 18 is returned to the water supply tank 311 through the return hose 321.

  The pump 312 may be used as a water source pump that sucks water from a water source (for example, a water channel, a pond, a river, etc.) different from the water tank 311 instead of using it as a pump that sucks water from the water tank 311. . When the pump 312 is used as a water source pump, one end of the suction hose 319 may be connected to the suction port of the pump 312 and the other end may be disposed in another water source. Further, a pump different from the pump 312 may be mounted on the loading platform 301, and the other pump may be used as a water source pump. In this case, the water source pump and the water supply tank 311 are connected by another hose (replenishment hose) (not shown), and water drawn from another water source is guided by the supply hose to replenish the water supply tank 311. Can do.

As shown in FIGS. 5 to 10, the supply hose 320 and the return hose 321 are supported by a hose support member 322. The hose support member 322 defines and supports the extending direction of the supply hose 320 and the return hose 321.
The hose support member 323 is attached along the frame 305 of the loading platform 301. The attachment position of the hose support member 323 can be selected according to the extending direction of the supply hose 320 and the return hose 321. The extending direction is determined by the position of the transplanter 1 with respect to the carriage 300. For example, when the transplanter 1 is located in front of the carriage 300, the extending direction is forward. When the transplanter 1 is located on the right side of the carriage 300, the extending direction is on the right side. When the transplanter 1 is located to the left of the carriage 300, the extending direction is to the left. That is, the hose support member 323 can be changed between a first form extending forward of the loading platform 301 and a second configuration extending to the left or right of the loading platform 302.

As shown in FIGS. 11 and 12, when the supply hose 320 and the return hose 321 are to be extended toward the front of the carriage 300 (in the case of the first embodiment), the hose support member 323 has the side frame 305SR or 305SL. Attached along.
As shown in FIG. 11, in a state where the hose support member 323 is attached along the right surface of the right side frame 305SR, the hose support member 323 protrudes forward from the right front end portion of the carriage 300. . As shown in FIG. 12, in a state where the hose support member 323 is attached along the left surface of the left side frame 305SR, the hose support member 323 projects forward from the left front end portion of the carriage 300. Whether the hose support member 323 is attached to the side frame 305SR or 305SL may be determined according to the position of the transplanter 1 and the position and orientation of the water supply port 205 of the irrigation tank 193.

As shown in FIG. 13, when it is desired to extend the supply hose 320 and the return hose 321 toward the right side of the carriage 300 (in the case of the second form), the hose support member 323 is disposed on the front surface of the front frame 305F. Attached along. In this case, the hose support member 323 protrudes rightward from the right end portion of the carriage 300.
As shown in FIG. 14, when it is desired to extend the supply hose 320 and the return hose 321 toward the left side of the carriage 300 (in the second state), the hose support member 323 is disposed on the front surface of the front frame 305F. Attached along. In this case, the hose support member 323 is projected leftward from the left end portion of the carriage 300.

As shown in FIGS. 5 to 10, the hose support member 322 has a main body 323 and a holding member 324. The main body 323 is configured by a member that forms a hose arrangement portion where the supply hose 320 and the return hose 321 are arranged. The main body 323 is held by a holder 325 provided on the side frames 305SR and 305SL or the front frame 305F and fixed by pins 327.

  As shown in FIGS. 6 to 8, the main body 323 is, for example, a metal channel material, and includes a side plate portion 323a, an upper plate portion 323b, and a lower plate portion 323c. The side plate portion 323a abuts along the outer surface of the frame (the right surface of the side frame 305SR, the left surface of the side frame 305SL, or the front surface of the front frame 305F). The upper plate portion 323b extends from the upper portion of the side plate portion 323a in a direction away from the outer surface of the frame (hereinafter referred to as “outside of the frame”). The lower plate portion 323c extends outward from the lower portion of the side plate portion 323a. The upper plate portion 323b and the lower plate portion 323c are parallel to each other. Therefore, the hose arrangement portion is formed by the side plate portion 323a, the upper plate portion 323b, and the lower plate portion 323c.

  As shown in FIGS. 6, 7 and 9, the side plate portion 323a is provided with a cylindrical portion 323d and a second hole 323e. As shown in FIGS. 6 and 10, the cylindrical portion 323d extends outward from the intermediate position in the vertical direction of the side plate portion 323a. A female screw is formed on the inner surface of the cylindrical portion 323d, and a bolt 328 described later is screwed into the female screw. The second hole 323e is formed at one end of the side plate portion 323a in the longitudinal direction.

Next, a method for extending the supply hose 320 and the return hose 321 (a method for attaching the main body 323) will be described in detail with reference to FIGS.
As shown in FIG. 11, when the supply hose 320 and the return hose 321 are extended toward the front on the right side of the carriage 300, the second hole 323e formed at one end of the main body 323 (side plate portion 323a) and the side portion The pin 327 is inserted into the first hole 326 and the second hole 323e together with the first hole 326 provided on the front side of the frame 305SR. Further, one end of the main body 323 is set on a holder 325 provided on the front side of the side frame 305SR.

  Also, as shown in FIG. 12, when the supply hose 320 and the return hose 321 are extended toward the left front of the carriage 300, they are provided in front of the second hole 323e of the main body 323 and the side frame 305SL. Together with the first hole 326, the pin 327 is inserted into the first hole 326 and the second hole 323e. Also, one end of the main body 323 is set on a holder 325 provided in front of the side frame 305SL.

  As shown in FIG. 13, when the supply hose 320 and the return hose 321 are extended toward the right side of the carriage 300, the second hole 323e of the main body 323 and the first hole 326 provided in the front frame 305F. And the pin 327 is inserted into the first hole 326 and the second hole 323e. Also, one end of the main body 323 is set on a holder 325 provided on the right side of the front frame 305F.

  As shown in FIG. 14, when the supply hose 320 and the return hose 321 are extended toward the left side of the carriage 300, the second hole 323e of the main body 323 and the first hole 326 provided in the front frame 305F. And the pin 327 is inserted into the first hole 326 and the second hole 323e. Also, one end of the main body 323 is set on a holder 325 provided on the left side of the front frame 305F.

As described above, the main body 323 can be attached along a part of the frame 305 in the longitudinal direction. In other words, the main body 323 is not attached along the entire length of the frame 305. As a result, the main body 323 can be protruded greatly from the cart 300 without using the main body 323 longer than the frame 305. Therefore, even in the case of the relatively short main body 323, it is possible to satisfactorily guide the extending direction of the supply hose 320 and the return hose 321.

  Further, as shown in FIGS. 5 and 8, the main body 323 is held by the holder 325, and the pin 327 is passed through the second hole 323e and the first hole 326 as shown in FIG. 323 can be easily fixed along the outer surface of the frame. In particular, the first hole 326 and the holder 325 are provided at positions shifted in the front-rear direction or the loading platform width direction. Therefore, the main body 323 can be easily held at two points (the holder 325 and the first hole 326) that are spaced apart from each other in the longitudinal direction of the main body 323.

  Now, as shown in FIGS. 5 and 6, the holding member 324 is provided across the extending end of the upper plate portion 323b and the extending end of the lower plate portion 323c. The holding member 324 is formed of a rectangular plate having a through hole 324a, and a plurality of holding members 324 are provided at intervals in the longitudinal direction of the main body 323. A bolt 328 is inserted into the through hole 324a, and the bolt 328 is screwed into a female screw formed on the inner surface of the cylindrical portion 323d. Thereby, the holding member 324 is fixed to the main body 323.

  As shown in FIGS. 6 and 10, the supply hose 320 and the return hose 321 are arranged in a hose arrangement portion formed by the upper plate portion 323 b, the lower plate portion 323 c and the side plate portion 323 a of the main body 323, and the holding member 324. Held by. The supply hose 320 and the return hose 321 are juxtaposed in the vertical direction with the cylindrical portion 323d interposed therebetween in the hose arrangement portion. For holding the hose, the holding member 324 is brought into contact with the supply hose 320 and the return hose 321, the bolt 328 is inserted into the through hole 324 a of the holding member 324, and the bolt 328 is screwed into the female screw of the cylindrical portion 323 d. Can be done. Thereby, the supply hose 320 and the return hose 321 can be compactly arranged in the vicinity of the loading platform 301. The supply hose 320 and the return hose 321 arranged in the main body 323 are held by a holding member 324.

  When the hose support member 322 is not used, the main body 323 is attached along the entire length of the frame 305 as shown in FIG. For example, when the main body 323 is attached along the right surface of the side frame 305SR, one end side (side on which the second hole 323e is formed) of the main body 323 is positioned behind the side frame 305SR. Then, the pin 327 is inserted into the first hole 326 and the second hole 323e by combining the first hole 326 and the second hole 323e formed at the rear side of the side frame 305SR. Further, the other end side of the main body 323 (the side opposite to the side where the second hole 323e is formed) is positioned in front of the side frame 305SR. The other end of the main body 323 is set on a holder 325 provided on the front side of the right side of the side frame 305SL. By doing in this way, the main body 323 can be attached along the entire length of the right surface of the side frame 305SR.

When the main body 323 is attached along the left side of the side frame 305SL, the above-mentioned “side frame 305SR” can be read as “side frame 305SL”, and the above “right side” can be read as “left side”. That's fine.
As described above, the protrusion length of the main body 323 from the frame 305 can be reduced by attaching the main body 323 along the entire length of the frame 305. Therefore, when the hose support member 322 is not used, it is possible to prevent the hose support member 322 from hindering work. In addition, since the hose support member 322 can be stored in a state where it is attached to the loading platform 301, it is possible to save the trouble of storing the hose support member 322 in a place different from the cart 300. Furthermore, when the hose support member 322 is used, it is not necessary to prepare the hose support member 322 from another location, so that workability is excellent.

As described above, when the hose support member 322 is used (see FIGS. 11 to 14), the pin 327 is inserted into the first hole 326 provided on the front side. When the hose support member 322 is not used (see FIG. 15), the pin 327 is inserted into the first hole 326 provided in the rear portion. That is, since the first holes 326 are provided on the front and rear sides of the side frames 305SR and 305SL, the degree of extension can be changed between when the hose support member 322 is used and when it is not used.

As shown in FIGS. 1 to 3, a support shaft 401 is provided at the rear part of the loading platform 301.
The support shaft 401 has a shaft center in the loading platform width direction, and is provided at the right rear portion and the left rear portion of the loading platform 301, respectively. The right support shaft 401 extends leftward from the rear end of the right side frame 305SR. The left support shaft 401 extends rightward from the rear end of the left side frame 305SL.

As shown in FIG. 17, the support shaft 401 has an inner cylinder 401a and an outer cylinder 401b. Although only the left support shaft 401 is shown in FIG. 17, the right support shaft 401 is provided symmetrically with the left support shaft 401.
One end of the inner cylinder 401a is rotatably attached to the side frames 305SR and 305SL, and the other end extends from the side frames 305SR and 305SL to the inside of the loading platform. The outer cylinder 401b is fitted on the other end side of the inner cylinder 401a. The inner cylinder 401 a and the outer cylinder 401 b are connected by a bolt 402. As a result, the support shaft 401 is configured such that the inner cylinder 401a and the outer cylinder 401b are integrally rotatable about the axis in the loading platform width direction.

As shown in FIGS. 17 and 18, a tool bar 400 is attached to the outer cylinder 401 b via a connecting member 404. One end of the connecting member 404 is fixed to the outer surface of the outer cylinder 401b and extends downward. A toolbar 400 is fixed to the other end of the connecting member 404.
The tool bar 400 is a rectangular tube-shaped member and extends in the loading platform width direction. The toolbar 400 has one end (right end) fixed to the outer cylinder 401 b of the right support shaft 401 and the other end (left end) connected to the outer cylinder 401 b of the left support shaft 401. That is, the toolbar 400 is constructed so as to connect the right outer cylinder 401b and the left outer cylinder 401b. Thereby, the tool bar 400 is supported so as to be rotatable around the axis of the support shaft 401.

  A drooping member 405 is provided at the rear ends of the side frames 305SR and 305SL. The hanging member 405 extends downward from the side frames 305SR and 305SL. As shown in FIG. 18, the drooping member 405 and the connecting member 404 are connected by a gas damper as the biasing member 403. One end side of the urging member 403 is locked to a first locking portion 406 that protrudes from the surface of the connecting member 404 on the outer side of the loading platform. The other end side of the urging member 403 is locked to a second locking portion 407 protruding from the surface of the hanging member 405 on the outer side of the loading platform. The second locking portion 407 is provided in front of and below the first locking portion 406. The urging member 403 has an urging force in the extending direction, and assists a force required when the tool bar 400 is rotated upward around the axis of the support shaft 401. Further, when the tool bar 400 is rotated downward around the axis of the support shaft 401, a sudden drop is suppressed.

As shown in FIGS. 1 and 2, a multi-film laying device 304 is attached to the tool bar 400. The multi-film laying device 304 lays the multi-film MF on the ridge 4 in the field where seedlings are planted by the transplanter 1 described later.
As described above, the toolbar 400 is supported so as to be rotatable about the axis of the support shaft 401. Therefore, the attitude of the multi-film laying device 304 can be changed by rotating the toolbar 400 upward or downward about the support shaft 401. Specifically, in a state where the toolbar 400 is rotated downward, the multi-film laying device 304 is in the first posture for laying the multi-film MF (see FIG. 1). On the other hand, when the tool bar 400 is rotated upward, the multi-film laying apparatus 304 assumes the second posture retracted upward from the first posture (see FIG. 19). Therefore, when the multifilm laying operation is not performed, the multifilm laying device 304 can be retracted to the second posture.

The toolbar 400 is positioned below the support shaft 401 in the first posture, and is positioned behind the support shaft 401 in the second posture. The gas damper as the urging member 403 is in a shortened state in the first posture and is in an extended state in the second posture.
As shown in FIG. 1, FIG. 2, and FIG. 16, the multi-film laying device 304 includes a ridge forming device 330, a film presser 390, and a soil covering device 410. As shown in FIG. 16, the multi-film laying device 304 is attached to the tool bar 400 via the first attachment portion 370 and the second attachment portion 380.

  The first attachment portion 370 is provided on one end side (right side) and the other end side (left side) of the tool bar 400 in the longitudinal direction. As shown in FIGS. 17, 18, and 20, the first attachment portion 370 includes an upper attachment member 371, a lower attachment member 372, and a fastening member 373. For convenience of illustration, in FIG. 17, a part of the upper mounting member 371 and a horizontal cylinder portion 375 described later is notched.

The upper mounting member 371 is a rectangular flat plate in a plan view, and is provided in contact with the upper surface of the tool bar 400. A lower mounting member 372 is disposed below the upper mounting member 371.
The lower attachment member 372 includes a front plate portion 372a, a rear plate portion 372b, a lower plate portion 372c, and an attachment portion 372d. The front plate portion 372 a is in contact with the front surface of the tool bar 400. The rear plate portion 372b is in contact with the rear surface of the tool bar 400. The lower plate portion 372 c is in contact with the lower surface of the tool bar 400. The attachment portion 372d is a pair of plate-like portions arranged at intervals in the loading platform width direction, and extends rearward and downward of the tool bar 400. The front plate portion 372a, the rear plate portion 372b, and the lower plate portion 372c are fixed to the attachment portion 372d. The fastening member 373 is a member that connects the upper mounting member 371 and the lower mounting member 372. The first attachment portion 370 can be attached by fastening the upper attachment member 371 and the lower attachment member 372 with the fastening member 373 with the toolbar 400 interposed therebetween.

Further, the lower mounting member 372 has a vertical cylinder part 374 and a horizontal cylinder part 375. The vertical cylinder portion 374 has a hexagonal cylinder shape, is fixed to the rear end portion of the attachment portion 372d, and extends in the vertical direction. The horizontal cylinder portion 375 has a substantially rectangular cylinder shape, is fixed to the rear surface of the rear portion 372b, and extends in the loading platform width direction.
As shown in FIGS. 17 and 18, a saddle former 330 is attached to the vertical cylindrical portion 374. The eaves molding machine 330 levels the surface of the eaves to form an appropriate height, and is provided on the right rear side and the left rear side of the loading platform 301, respectively. That is, a pair of ridge formers 330 is provided at intervals in the loading platform width direction.

The scissor molding device 330 includes a scissor forming disk 331, a height adjusting mechanism 332, and an orientation adjusting mechanism 333.
The cocoon molding disk 331 is a member that moves while contacting the surface of the cocoon with the movement of the carriage 300 and eliminates excess soil on the surface of the cocoon. The height adjustment mechanism 332 includes a vertical cylinder portion 374, a vertical bar 334, and a pin 335. The vertical cylinder portion 374 is fixed to the rear end portion of the attachment portion 372d and extends in the vertical direction. The vertical bar 334 is a member that is inserted into the vertical cylindrical portion 374 and has a plurality of holes 376 formed at regular intervals along the vertical direction. According to the height adjustment mechanism 332, the height of the eaves forming disk 331 can be changed by changing the vertical bar 334 with respect to the vertical cylinder portion 374 and fitting the pin 335 into the hole 376.

As shown in FIGS. 17, 18, and 21, the orientation adjustment mechanism 333 includes an upper plate 336, a lower plate 337, and a bolt 338. The upper plate 336 is fixed to the lower end portion of the vertical bar 334, and has a pair of long holes 336a with the vertical bar 334 interposed therebetween. The lower plate 337 is disposed below the upper plate 336, and has a pair of long holes 337a at positions corresponding to the long holes 336a of the upper plate 336. A saddle forming disk 331 is connected to the outer side of the lower plate 337 via a connecting portion 339. The scissors forming disk 331 is rotatably supported by the connecting portion 339.

  With respect to the scissors forming disk 331 shown in FIG. 18, the solid line indicates a state where the upper plate 336 and the lower plate 337 are completely overlapped, and the virtual line (two-dot chain line) indicates the lower plate 337 with respect to the upper plate 336. The state is shown by rotating and shifting. In FIG. 18, for the sake of simplicity, the bolt 338 omits the head and shows only the shaft. According to the orientation adjustment mechanism 333, the orientation of the ridge-forming disk 331 can be changed by rotating the lower plate 336 relative to the upper plate 336 as in practice and virtual lines.

  As shown in FIGS. 17, 18, and 20, a horizontal bar 351 extending toward the outer side of the loading platform is inserted in the horizontal cylinder portion 375 in parallel with the tool bar 400. The horizontal bar 351 is fixed to the horizontal cylinder portion 375 by a bolt 356. One end (front end) of the curved bar 352 that is curved is fixed to the end of the horizontal bar 351 on the outer side of the loading platform. As shown in FIGS. 20 and 22, an angle adjusting mechanism 353 is provided at the other end (lower end) of the bending rod 352, and a connecting rod 354 is provided at the angle adjusting mechanism 353.

  The angle adjustment mechanism 353 includes a relay member 357, a locking shaft 358, a biasing member 359, a construction plate 360, and a locking member 361. The relay member 357 is fixed to the other end portion of the bending rod 352. One end portion (front end portion) of the connecting rod 354 is pivotally supported on the relay member 357 via a support shaft 362. Thereby, the connecting rod 354 is rotatable up and down with the support shaft 362 as a fulcrum.

  The locking member 361 is provided in the middle of the connecting rod 354 in the longitudinal direction. The locking member 361 extends in the loading platform width direction. The biasing member 361 is provided on the right side and the left side with the connecting rod 354 interposed therebetween. One end (front end) of the biasing member 361 is locked to a locking shaft 358 fixed to the front portion of the relay member 357, and the other end (rear end) of the biasing member 361 is locked to the locking member 361. Has been. The urging member 361 urges the locking member 361 in a direction to pull it toward the locking shaft 358.

  The erection plate 360 is laid between the locking shaft 358 and the locking member 361. An elongated hole 364 extending toward the other end side is formed on one end side of the erection plate 360. A locking shaft 358 is inserted into the elongated hole 364, and the locking shaft 358 is movable along the elongated hole 364. The other end side of the erection plate 360 is fixed to the locking member 361 via a pin 363. As a result, an urging force that rotates downward about the support shaft 362 acts on the connecting rod 354. This urging force acts as a force for pressing a film presser 390 and a soil covering disk 411 described later against the ground.

  As shown in FIGS. 16, 20, and 22, a film presser 390 and a soil covering device 410 are attached to the rear of the connecting rod 354. The film presser 390 presses both ends of the laid multi-film in the loading platform width direction. The film presser 390 is provided on the right side rear side and the left side rear side of the loading platform 301, respectively. The distance between the pair of film pressers 390 is set so as to gradually decrease from the front to the rear. The interval between the rear portions of the pair of film pressers 390 is set to be approximately equal to the interval between the rear portions of the pair of saddle forming disks 331. Thereby, the side edges of the multifilm can be pressed and laid along both edges of the ridge formed by the pair of ridge forming disks 331.

The locking member 361 is provided with a connecting rod 392, and the connecting rod 392 is provided with a connecting plate 394. A film presser 390 is rotatably supported on the connecting plate 394. The film presser 390 is pressed against the ground by receiving a force by which the connecting rod 354 rotates downward about the support shaft 362 by the biasing force of the biasing member 361.
The earth covering device 410 is for covering the side edge portion with soil by covering the side edge portion of the multi-film pressed by the film presser 390 with soil. As shown in FIGS. 2 and 16, the earth covering device 410 is provided on the right side rear side and the left side rear side of the loading platform 301, respectively. That is, a pair of earthenware 410 is provided with a gap in the width direction of the cargo bed, similarly to the cage forming disk 331 and the film presser 390.

  As shown in FIGS. 20 and 22, the earth covering device 410 has a earth covering disk 411 and a position adjusting mechanism 412. The soil covering disk 411 is rotatably attached to the other end portion (rear end portion) of the connecting rod 354 via the position adjusting mechanism 412. Therefore, the soil covering disk 411 receives a downward biasing force via the connecting rod 354 by the biasing member 361 and is pressed against the ground by this biasing force. The soil covering disk 411 is formed in a substantially disk shape, and has a plurality of arc-shaped notches 411a at equal intervals along the outer periphery.

The position adjustment mechanism 412 includes a rotating member 413 and a bolt 414. The rotating member 413 has a long hole 413a, and a bolt 414 is inserted into the long hole 413a. The bolt 414 connects the other end (rear end) of the connecting rod 354 and one end of the rotating member 413 so as to be rotatable, and is movable along the elongated hole 413a. As a result, the rotating member 413 is rotatable and movable with the bolt 414 inserted through the other end of the connecting rod 354 as a fulcrum. The cover disc 411 is attached to the other end of the rotating member 413. It is connected. Therefore, the soil covering disk 411 can be rotated by rotating the rotating member 413 in the elongated hole 413a. Moreover, the cover soil disk 411 can be moved by moving the rotation member 413 along the long hole 413a.

  As shown in FIG. 16, the soil covering disk 411 is provided behind the pair of trough forming disks 331 and behind the pair of film pressers 390 and on the outer side of the loading platform. The distance between the pair of soil covering disks 411 is set so as to gradually decrease from the front to the rear. The distance between the rear parts of the pair of soil covering disks 411 is set larger than the distance between the rear parts of the pair of film pressers 390. Thereby, the soil is hung on the side edge portion of the multi-film pressed by the film presser 390, and the side edge portion can be reliably covered with the soil.

As shown in FIG. 16, the second attachment portion 380 is provided at the center in the longitudinal direction of the tool bar 400.
As shown in FIGS. 16 and 23, the second mounting portion 380 has a rear mounting member 381 and a front mounting member 382. The upper part of the rear attachment member 381 is located above the toolbar 400, and the lower part of the rear attachment member 381 is located below the toolbar 400. A mounting portion 381a configured with a screw shaft protruding forward is formed on the upper and lower portions of the rear mounting member 381. The second attachment portion 380 is attached to the tool bar 400 by inserting the attachment portion (screw shaft) 381a into the holes formed above and below the front attachment member 382 and screwing the nut 381b into the attachment portion 381a.

One end side (front end side) of the support tube 383 is fixed to the lower portion of the rear mounting member 381. The support cylinder 383 is a square cylinder and extends rearward. One end side (front end side) of the support bar 384 is inserted into the support cylinder 383. The support bar 384 has a quadrangular prism shape, and protrudes from the other end (rear end) of the support cylinder 384 and extends rearward. The support rod 384 can change the projection length from the support cylinder 384 by loosening the adjustment screw 385, and can fix the projection length by tightening the adjustment screw 385. A support piece 388 is fixed to the other end side (rear end side) of the support bar 384. The support piece 388 supports a midway portion in the longitudinal direction (vertical direction) of the vertical bar 386. The vertical bar 386 is fixed to the support piece 388 by an adjustment screw 387, and can be moved up and down by loosening the adjustment screw 387.

  As shown in FIGS. 16 and 23, an attachment frame 341 is attached to the lower end portion of the vertical bar 386. The attachment frame 341 has a horizontal frame portion 341a and a pair of side frame portions 341b. The horizontal frame portion 341a extends in the loading platform width direction. The pair of side frame portions 341b extends forward from both end portions of the horizontal frame portion 341a. A tension roll 342 is rotatably supported between the pair of side frame portions 341b.

The tension roll 342 applies tension to the multi-film MF unwound from a film roll FR described later. In this embodiment, the two tension rolls 342 are arranged side by side in the loading platform width direction.
A first support shaft 343 is attached to the outer surface of the side frame portion 341b (the surface opposite to the tension roll 341). The first support shaft 343 extends rightward and leftward in parallel with the rotation axis direction of the tension roll 342. The first support shaft 343 is inserted into the film roll FR, and rotatably supports the film roll FR.

  As shown in FIGS. 16, 20, and 22, the bending rod 352 is provided with a vertical support rod 346 extending vertically. The vertical support bar 346 can be adjusted in the vertical direction. A second support shaft 349 extending in the cargo bed width direction is provided at the lower end of the vertical support bar 346. The second support shaft 349 extends toward the inside of the loading platform. The second support shaft 349 is parallel to the first support shaft 343. The second support shaft 349 has substantially the same axial direction as the first support shaft 343 in the front-rear direction. In other words, in plan view, the axis of the second support shaft 349 and the axis of the first support shaft 343 are arranged on substantially the same straight line. A film roll FR obtained by winding the multifilm MF in a roll shape is supported by a first support shaft 343 and a second support shaft 349.

  As shown in FIG. 1, according to the carriage 300 having the above-described configuration, the upper surface of the ridge 4 can be uniformly formed by the ridge forming unit 330 while the traveling device 302 is driven and moved along the ridge 4. it can. Then, the multi-film MF is unwound from the film roll FR on the formed ridge 4, and the side edge of the multi-film MF is pressed by the film presser 390, and then the side edge of the multi-film MF is covered with soil. Can do. Thereby, the multi-film MF can be satisfactorily laid on the fence 4.

The cart 300 can be used by being accompanied by the transplanter 1 for planting seedlings on the ridge 4.
By using the carriage 300 along with the transplanter 1, the transplanter 3 can be configured to subsequently lay the multifilm MF on the cocoon after planting the seedling in the cocoon.
38 to 40 are views showing the transplantation device 3. The transplant device 3 includes the cart 300 and the transplanter 1 described above.

The transplanter 1 crosses the cocoon 4 formed in the field, moves along the cocoon, and distributes seedlings 5 called cell-molded seedlings such as cigarettes and vegetables, soil block seedlings, pot seedlings, etc. at predetermined intervals. It is a transplanting machine that plants the plant.
FIG. 24 shows a side view of the transplanter 1 and FIG. 25 shows a plan view of the transplanter 1. In the following description of the transplanter 1, the arrow A1 direction in FIGS. 24 and 25 is the front, the arrow A2 direction in FIGS. 24 and 25 is the rear, the arrow B1 direction in FIG. 25 is the left, and the arrow B2 direction in FIG. It will be described as the right side.

Moreover, as shown in FIG. 25, the horizontal direction which is a direction orthogonal to the front and rear of the transplanter 1 will be described as the body width direction. The direction from the central part of the transplanter 1 toward the right part or the left part will be described as the outside of the machine body. In other words, the outward direction of the aircraft is the direction away from the transplanter 1 in the width direction of the aircraft. The direction opposite to the outside of the aircraft will be described as the inside of the aircraft. In other words, the in-machine direction is the width direction of the machine body and the direction approaching the transplanter 1.

As shown in FIGS. 24 and 25, the transplanter 1 includes a machine body 12, a traveling device 13, a planting device 14, a seedling supply device 15, a seedling mounting table 16, a fertilizer application device 17, and an irrigation device 18. And.
As shown in FIG. 24, an engine 258, which is one of prime movers, and a fuel tank 25 are mounted on the front portion of the airframe 12. The traveling device 13, the planting device 14, the seedling supply device 15, the fertilizer application device 17, and the irrigation device 18 are driven by the power of the engine 258.

As shown in FIGS. 25 and 26, the traveling device 13 is a device that supports the airframe 12 so as to be able to travel. The traveling device 13 is provided on the right and left sides of the airframe 12 and has a front wheel 44 and a rear wheel 45. Each of the front wheel 44 and the rear wheel 45 is a tire wheel that rolls in the groove between the flanges 4, and the position of the front wheel 44 and the rear wheel 45 can be adjusted in the body width direction relative to the body 12.
As shown in FIG. 24, the planting device 14 is provided at the rear portion of the machine body 12. The planting device 14 has a planting tool 55 for planting the seedling 5. The planting tool 55 enters the field when descending to form a planting hole 66 (see FIG. 24), and plant the seedling 5 in the planting hole 66.

As shown in FIG. 24, the seedling supply device 15 is a device that supplies the seedling 5 to the planting tool 55 when the planting tool 55 is raised, and has a turntable 88 and a seedling supply tool 89. doing.
As shown in FIG. 24, the seedling placing stand 16 is disposed on the front upper side of the seedling supplying device 15. The seedling table 16 is formed in a width extending from the right traveling device 13 to the left traveling device 13. The seedling stage 16 is a stage for placing the seedling 5 supplied to the seedling supply device 15. The seedling 5 is grown in a state of being put in a cell tray (nursing seedling tray), and the cell tray is placed on the seedling placing stand 16, and the seedling 5 on the seedling placing stand 16 is supplied to the seedling supply device 15.

As shown in FIG. 24, the fertilizer application device 17 is provided at the rear part of the machine body 12. The fertilizer application device 17 includes a fertilizer tank 112 that stores fertilizer, and a fertilizer supply device 121 that supplies the fertilizer in the fertilizer tank 112 to the vicinity of the planting portion of the seedling 5.
As shown in FIG. 24, the irrigation device 18 is provided at the rear part of the machine body 12. The irrigation device 18 includes an irrigation tank 193 that stores water, and a water supply device 194 that supplies the water in the irrigation tank 193 to the planting portion of the seedling 5. The irrigation tank 193 is provided behind the planting tool 55 and below the seedling supply device 15, that is, below the rear portion of the seedling supply device 15.

  As shown in FIGS. 27 to 30, the irrigation tank 193 has a front wall 195, a rear wall 196, a right side wall 197, a left side wall 198, an upper surface wall 199, and a bottom wall 200, and is box-shaped. Is formed. The top wall 199 is detachably attached to the upper ends of the front wall 195 and the back wall 196 via bolts or the like. Mounting bolts 201 are fixed to the upper part of the front wall 195 and the upper part of the rear wall 196. The irrigation tank 193 is attached to a bracket (not shown) fixed to the machine body 12 via the attachment bolt 201. The bottom wall 200 is provided with a drain plug 202 for draining water from the irrigation tank 193.

A sprocket 43 is disposed on the right side of the right side wall 197. The sprocket 43 is attached to a cam drive shaft 42 that penetrates the irrigation tank 193 in the body width direction. The cam drive shaft 42 is supported on the right side wall 197 and the left side wall 198 via bearing devices 203 and 204 so as to be rotatable around the axis.
A water supply port 205 and a return port 206 are provided on the left side of the upper portion of the back wall 196. The water supply port 205 and the return port 206 are formed of a pipe material. The water supply port 205 is a member for taking the water in the water supply tank 311 mounted on the carriage 2 into the irrigation tank 193. The return port 206 is a member for returning the water in the irrigation tank 193 to the water supply tank 311.

  As described above, the cart 300 is equipped with the pump 312 that sucks up water from the water supply tank 311. The discharge port of the pump 312 and the water supply port 205 are connected by a supply hose 320. Further, one end of a return hose 208 is connected to the return port 206, and the other end side of the return hose 208 is inserted into the water supply tank 311. Therefore, the water in the water supply tank 311 circulates from the water supply pump 313 to the water supply tank 311 through the irrigation tank 193.

As shown in FIGS. 27 to 31, the water supply device 194 includes an irrigation pipe 209, a lid device 210, a lid operation mechanism 211, and a cam adjustment mechanism 212.
The irrigation pipe 209 is a pipe member that guides the water in the irrigation tank 193 to the planting part of the seedling 5. The lid device 210 is a device that opens and closes one end side of the irrigation pipe 209. The lid operating mechanism 211 is a device that operates the lid device 210. The cam adjustment mechanism 212 is a mechanism that adjusts the lid operation mechanism 211.

  As shown in FIG. 28, the irrigation pipe 209 is disposed on the front side of the irrigation tank 193. A pair of irrigation pipes 209 are provided in the body width direction, and are arranged on the right side of the planting tool 55 and the left side of the planting tool 55 (see FIG. 25). As shown in FIGS. 27 and 28, the irrigation pipe 209 includes a first drain pipe 213 fixed to the lower portion of the front wall 195, a second drain pipe 214 connected to the first drain pipe 213, and the first drain pipe 213. 2 and a third drain pipe 215 connected to the drain pipe 214. One end side of the first drain pipe 213 is inserted into the irrigation tank 193. One end side of the first drain pipe 213 serves as a drain port 216 for discharging water in the irrigation tank 193.

The second drain pipe 214 is constituted by a straight pipe, and one end side is inserted into the other end side of the first drain pipe 213. One end side of the second drain pipe 214 is attached to the other end side of the first drain pipe 213 by a bolt 217 and a nut 218. The first drain pipe 213 and the second drain pipe 214 are inclined outward from the machine body.
The third drain pipe 215 is an elbow pipe, and one end is fitted and fixed to the other end of the second drain pipe 214. The other end of the third drain pipe 215 is directed toward the inside of the aircraft. The water in the irrigation tank 193 is supplied to the planting part of the seedling 5 through the first drain pipe 213, the second drain pipe 214, and the third drain pipe 215. The planting part includes the surroundings of the seedling (roots and leaves) and the seedling itself (roots and leaves).

  As shown in FIGS. 27, 31, 32, and 33, the lid device 210 is provided in the irrigation tank 193. The lid device 210 includes an opening / closing lid 219, a lid bracket 220, and a biasing spring 221. The opening / closing lid 219 is a member that opens and closes the drain port 216. The lid bracket 220 is a member that supports the opening / closing lid 219. The biasing spring 221 is a member that presses the opening / closing lid 219 against the drain port 216.

  As shown in FIG. 31, the opening / closing lid 219 is provided for the right and left irrigation pipes 209, respectively. The opening / closing lid 219 includes a mounting plate 222, a packing 223, and a presser plate 224. A packing 223 is overlaid on the mounting plate 222 and a presser plate 224 is overlaid on the packing 223. The packing 223 is attached to the mounting plate 222 by screws 225 that pass through the holding plate 224 and the packing 223 and are screwed into the mounting plate 222. The drain port 216 is closed by pressing the packing 223 against the drain port 216.

  As shown in FIG. 31, the mounting plate 222 is provided with a pivot plate 226, and this pivot plate 226 is pivotally supported by a lower portion of the lid bracket 220 via a pivot 259 so as to be rotatable around a horizontal axis. ing. A bracket shaft 227 is provided on the top of the lid bracket 220. The bracket shaft 227 is supported by a bracket stay 228 fixed to the inner surface of the front wall 195, and the lid bracket 220 can swing around the bracket shaft 227.

The urging spring 221 is composed of a torsion coil spring and is externally fitted to the bracket shaft 227. One end of the urging spring 221 is hooked to the lid bracket 220. The other end of the biasing spring 221 is hooked to the bracket stay 228. The urging force of the urging spring 221 acts in a direction to press the opening / closing lid 219 against the drain port 216.
As shown in FIG. 31, the lid operating mechanism 211 is provided in the irrigation tank 193. The lid operating mechanism 211 is provided for the right and left open / close lids 219, respectively. The lid operating mechanism 211 includes a cam 229 and a cam engaging portion 230.

  As shown in FIGS. 34 and 35, the cam 229 has a pushing portion 231 that opens the opening / closing lid 219 by pushing the cam engaging portion 230. The cam 229 includes a first cam plate 232 and a second cam plate 233 superimposed on the first cam plate 232. The first cam plate 232 includes a disk-shaped first base portion 234 and a first portion 235 projecting from the first base portion 234 toward the outer periphery. The second cam plate 233 includes a disk-shaped second base 236 and a second portion 237 that projects from the second base 236 toward the outer periphery. The first portion 235 and the second portion 237 constitute a pushing portion 231.

The right and left first cam plates 232 are fixed to the first cylinder 238, respectively. A cam drive shaft 42 is fitted into each first cylinder 238, and a pin 239 is inserted into the first cylinder 238 and the cam drive shaft 42. Thus, the first cylinder 238 is supported on the cam drive shaft 42 so as to be rotatable together.
The right second cam plate 233 is fixed to the right end of the second cylinder 240. The left second cam plate 233 is fixed to the left end of the second cylinder 240. The second cylinder 240 is provided over the right first cylinder 238 and the left first cylinder 238, and is fitted on the right first cylinder 238 and the left first cylinder 238 so as to be relatively rotatable. Yes. Therefore, the second cam plate 233 is rotatable relative to the first cam plate 232 around the rotation center of the cam 229 (cam drive shaft 42). By rotating the second cam plate 233 relative to the first cam plate 232, the length 241 of the pushing portion 231 around the rotation center of the cam 229 can be changed.

The left first cam plate 232 has two arc-shaped first pin insertion holes 242 around the rotation center of the cam 229. The left second cam plate 233 has a circular second pin insertion hole 243. Two second pin insertion holes 243 are formed corresponding to the first pin insertion holes 242.
An engagement plate 244 is provided on the left side of the left first cam plate 232. The engagement plate 244 is provided with an engagement pin 245 through which the first pin insertion hole 242 and the second pin insertion hole 243 are inserted. Two engagement pins 245 are provided corresponding to the first pin insertion hole 242 and the second pin insertion hole 243. The engagement plate 244 is fixed to the right end of the third cylinder 246 that is fitted to the left side of the cam drive shaft 42 so as to be relatively rotatable. The third cylinder 246 passes through the left bearing device 204 and protrudes leftward from the irrigation tank 193.

As shown in FIGS. 31 and 32, the cam engagement portion 230 is constituted by a bearing roller. The cam engagement portion 230 is attached to an engagement bracket 247 that is an upper portion of the lid bracket 220 and extends rearward from the back surface via a roller shaft 248 so as to be rotatable about a horizontal axis. Therefore, the cam engaging portion 230 swings integrally with the opening / closing lid 219 around the axis of the bracket shaft 227.

As shown in FIG. 31, the portion of the cam 229 other than the pushing portion 231 is configured not to contact the cam engaging portion 230. When the cam 229 is not in contact with the cam engagement portion 230, the opening / closing lid 219 is pressed against the drain port portion 216 by the biasing spring 221, and the drain port portion 216 is closed by the opening / closing lid 219.
As shown in FIG. 37, when the pushing portion 231 of the cam 229 comes into contact with the cam engaging portion 230 and pushes the cam engaging portion 230, the lid bracket 220 rotates about the bracket shaft 227 and the opening / closing lid 219 is moved. Separated from the drain port 216, the drain port 216 opens. Thereby, the water in the irrigation tank 193 is drained to the planting part of the seedling 5 through the irrigation pipe 209.

  As shown in FIG. 34, the cam adjustment mechanism 212 is provided on the left side of the irrigation tank 193. As shown in FIGS. 34 and 36, the cam adjustment mechanism 212 includes a first adjustment plate 249 and a second adjustment plate 250. The first adjustment plate 249 is externally fitted to the portion of the third cylinder 246 that protrudes to the left from the irrigation tank 193 so as to be integrally rotatable. The second adjustment plate 250 is externally fitted to a portion of the cam drive shaft 42 protruding leftward from the third cylinder 246 so as to be integrally rotatable. The cam drive shaft 42 protrudes leftward from the second adjustment plate 250, and a portion protruding leftward from the second adjustment plate 250 is a screw portion 251. The screw member 251 is screwed with a nut member 252 for retaining. A circular bolt insertion hole 253 is formed in the first adjustment plate 249. A nut member 254 whose screw hole matches the bolt insertion hole 253 is fixed to the right side surface of the first adjustment plate 249. The first adjustment plate 249 is provided with a first grip portion 255.

The second adjustment plate 250 is formed with an arc-shaped adjustment groove 256 centered on the axis of the cam drive shaft 42. An adjustment bolt 261 is inserted through the adjustment groove 256. The adjustment bolt 261 is screwed into the nut member 254 through the bolt insertion hole 253. The second adjustment plate 250 is provided with a second grip 257.
By loosening the adjustment bolt 186 and rotating the first adjustment plate 249 around the axis of the cam drive shaft 42, the third cylinder 246 rotates and the engagement plate 244 rotates. When the engagement plate 244 rotates, the second cam plate 233 rotates relative to the first cam plate 232, and the length 241 of the pushing portion 231 is adjusted. Accordingly, the opening time of the opening / closing lid 219, that is, the timing of irrigation can be easily adjusted.

Further, the cam adjustment mechanism 212 can adjust the relative rotation of the first cam plate 232 and the second cam plate 233 from the outside of the irrigation tank 193.
In addition, the second adjustment plate 250 is formed with a plurality of marks 260 made of dents. Thereby, stepwise adjustment of the opening time of the opening / closing lid 219 can be easily performed.
Since the irrigation tank 193 can supply water from the water supply tank 9 provided separately from the transplanter 1 into the irrigation tank 193, the continuous operation time of the irrigation apparatus 18 can be increased. Further, by mounting the water supply tank 9 on the carriage 2, it is not necessary to provide the transplanter 1 with a large irrigation tank 193, and it is possible to prevent an increase in weight and poor weight balance due to the provision of the large irrigation tank 193 in the transplanter 1. be able to.

After the operation of the fertilizer supply device 121, that is, after the shutter 135 is opened, the water supply device 194 supplies the water in the irrigation tank 193 to the planting part of the seedling 5 by changing the open / close lid 219 from the closed state. Therefore, when performing fertilization and irrigation, it can prevent that a fertilizer mixes with irrigation and it retains in the planting part of the seedling 5, and can prevent the fertilizer burn of the seedling 5. In this embodiment, irrigation is performed after fertilization by the fertilizer supply device 121. However, the present invention is not limited to this. Fertilization may be performed after irrigation, or fertilization and irrigation may be performed simultaneously.

In addition, the irrigation pipe 209 is arranged so that the water discharged from the irrigation device 18 hits the back surface of the earth discharging plate 68. By applying water to the back surface of the soil discharge plate 68, the soil adhering to the soil discharge plate 68 can be washed away.
Further, by opening and closing the lid 219 by pushing the cam engaging portion 230 by the pushing portion 231 of the cam 229, thereby allowing the water in the irrigation tank 193 to be discharged from the drain port portion 216, A large amount of water can be discharged in a short time.

  The transplanter described above has a fertilizer application device 17 that supplies fertilizer to the vicinity of the planted seedling 5 and an irrigation device 18 that irrigates the planted seedling 5. Therefore, planting work, fertilization work, and irrigation work can be carried out with one machine. In other words, planting work, fertilizing work, and irrigation work can be performed simultaneously. For example, after planting work and fertilization work are performed with one machine, it is not necessary to perform irrigation work with another machine, and planting, fertilization, and irrigation can be easily performed.

FIG. 38 and FIG. 39 show a case where the carriage 300 is moved behind the transplanter 1 to configure the transplanter 3, and the transplanter 1 and the carriage 300 are traveling along the same rod 4.
In this case, the hose support member 323 is the first embodiment described above (see FIG. 11), and the supply hose 320 and the return hose 321 are supported by the hose support member 323 and extended toward the front of the carriage 300. The extended ends of the supply hose 320 and the return hose 321 are connected to the irrigation tank 193 of the irrigation device 18 of the transplanter 1 that travels forward. The hose support member 323 may be attached along the left side frame 305SL as shown in FIG.

As described above, the transplanter 1 having the above configuration can be used in combination with the carriage 400 to constitute the transplant device 3.
FIG. 40 shows the case where the carriage 300 is moved to the left of the transplanter 1 to configure the transplanter 3, and the transplanter 1 and the carriage 300 travel along different adjacent saddles 4.
In this case, the hose support member 323 is extended to the left side of the carriage 300 in a state where the supply hose 320 and the return hose 321 are supported by the hose support member 323 as the second form described above (see FIG. 14). The extended ends of the supply hose 320 and the return hose 321 are connected to the irrigation tank 193 of the irrigation device 18 of the transplanter 1 that travels in the left front.

In addition, although not shown, the transplanter 3 can be configured by moving the carriage 300 along the right side of the transplanter 1. In this case, as shown in FIG. 13, the hose support member 323 protrudes toward the right side of the loading platform 301, and the supply hose 320 and the return hose 321 are supported by the hose support member 323 toward the right side of the carriage 300. Extend toward.
As shown in FIGS. 38 to 40, by causing the carriage 300 to accompany the transplanter 1, the water in the water supply tank 311 mounted on the carriage 300 is irrigated by the irrigation device 18 of the transplanter 1 via the supply hose 320. It can be supplied to the tank 193 and supplied to the seedlings planted in the cocoon by the transplanter 1. Further, the water in the irrigation tank 193 can be returned to the water supply tank 311 via the return hose 321.

In addition, the irrigation device of the transplanter 1 can be provided without extending the supply hose 320 and the return hose 321 to the ground by extending the supply hose 320 and the return hose 321 forward or sideward while being supported by the hose support member 323. 18 can be connected. Therefore, the supply hose 320 and the return hose 321 do not hinder the traveling of the transplanter 1 or the carriage 300.
Further, by constructing the transplanting device 3 by moving the cart 300 along with the transplanter 1, after planting seedlings on the cocoon by the transplanter 1, the multifilm laying device 304 provided in the cart 300 is used to Since the film MF can be laid on the fence, it is excellent in workability.

  Although the present invention has been described above, it should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

300 bogie 301 loading platform 302 travel device 303 prime mover 305F front frame 305SR side frame 305SL side frame 311 water supply tank 312 pump 320 supply hose 321 return hose 322 hose support member 323 main body 323a side plate 323b upper plate 323c lower plate 324 Holding member

Claims (7)

Loading platform,
A traveling device for supporting the cargo bed so as to travel;
A prime mover mounted on the loading platform and driving the traveling device;
A water supply tank mounted on the cargo bed and storing water;
A pump mounted on the cargo bed and sucking up water from the water supply tank;
A supply hose for sending water discharged from the pump to a supply target;
A return hose for returning water from the supply object to the water supply tank;
And a hose support member that defines and supports an extending direction of the supply hose and the return hose.   The cart according to claim 1, wherein the hose support member can be changed into a first form extending forward of the cargo bed and a second form extending left or right of the cargo bed. The cargo bed is
A side frame provided on a side of the cargo bed and supporting the hose support member in the first form;
A front frame provided at a front portion of the loading platform and supporting the hose support member in the second form;
The trolley | bogie of Claim 2 which has these. The hose support member has a main body having a hose arrangement part in which the supply hose and the return hose are arranged, and a holding member that holds the hose fixed to the main body and arranged in the hose arrangement part,
The hose arrangement portion extends along a side plate portion that contacts the frame, an upper plate portion that extends away from the frame from an upper portion of the side plate portion, and a direction away from the frame from a lower portion of the side plate portion. A lower plate portion to be taken out,
The cart according to claim 3, wherein the holding member is provided across an extending end portion of the upper plate portion and an extending end portion of the lower plate portion.   The cart according to claim 4, wherein the supply hose and the return hose are arranged in parallel in the top and bottom in the hose arrangement part.   The trolley | bogie in any one of Claims 1-5 with which the said water supply tank and the said pump are paralleled in the width direction of the said loading platform.   The cart according to claim 6, wherein the prime mover and the pump are arranged in parallel in the front-rear direction.

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