JP6791209B2 - Rice transplanter - Google Patents

Description

The present invention relates to a transplanter for transplanting vegetable seedlings such as onions and lettuce, and seed potatoes to a field.

Conventionally, a seedling transplanter for planting seedlings supplied from a seedling supply device in which a plurality of seedling containers move around is known, and a transplanter capable of double-row planting on the left and right (see, for example, Patent Document 1).

This transplanter sets the front-rear interval for planting seedlings, so-called inter-strain spacing, in multiple stages by switching the transmission that switches the vehicle speed transmission and the first inter-strain shifting gear mechanism and the second inter-strain shifting gear mechanism in the mission case. It is equipped with a mechanism to set the appropriate stock spacing according to the conditions such as the variety of crops and the cultivation area.

The above-mentioned transmission, the first and second inter-stock transmission gear mechanisms each include a switching lever, and each of these levers is operated to set an arbitrary inter-strain spacing.

Japanese Unexamined Patent Publication No. 2013-212127

However, in the above transplanter, by operating the first and second inter-stock transmission gear mechanisms with different switching levers, one switching lever is operated and the other is forgotten, or only one switching lever is operated. There is a problem that a stock spacing different from the stock spacing that the worker was trying to set is set due to an erroneous operation such as operating the above twice.

Seedlings are planted between different strains, and if the spacing is too narrow, the crops will compete for nutrients and water and grow poorly, and pests will spread between the crops and die, resulting in poor quality of the crop and harvesting. There is a problem that the amount decreases.

In addition, since the consumption of seedlings per work strip increases, there is a problem that the planned amount of seedlings is insufficient and wasteful empty space is generated in the field.

On the other hand, if the space between the plants is too wide, the planned number of seedlings cannot be planted in the work line, there are too many seedlings, and if there is not enough space in the field, it cannot be planted, and seedlings to be discarded are generated, which consumes extra cost. There is a problem to do.

Further, in order to arrange a plurality of inter-stock shifting gear mechanisms, it is necessary to increase the size of the mission case or the inter-stock shifting gear case connected to the mission case.

This requires a large space for arranging the transmission case or the gear case for inter-stock shifting, which causes problems such as poor maneuverability and reduced workability due to the increase in size of the machine, and operability and appearance design by securing the arrangement space. There is a problem of lowering.

In consideration of the above-mentioned problems of the conventional seedling transplanter, the present invention provides a transplanter provided with a compact transmission mechanism capable of appropriately delivering the object to be transplanted from the seedling supply device to the seedling planting tool. With the goal.

In order to solve the above problems, the following technical measures were taken.

That is, the invention according to claim 1 includes a seedling supply device (43) that supplies seedlings to a traveling vehicle body (40), and a planting device (42) that receives seedlings from the seedling supply device (43) and plants them in a field. In a transplanter including an inter-strain switching mechanism (100) in which the planting device (42) changes the planting interval of seedlings and an inter-strain switching member (170) for operating the inter-strain switching mechanism (100), the inter-strain switching mechanism ( The 100) is composed of a first switching mechanism (110) that greatly increases or decreases the number of stocks and a second switching mechanism (120) that slightly increases or decreases the number of stocks, and the first switching mechanism (110) and the second switching mechanism (120). Among them, the transplanter is characterized in that the side transmitted to the planting output mechanism (150) transmitted to the seedling supply device (43) and the planting device (42) is arranged on the upper side of the machine body.

In the invention according to claim 2, a transmission member (101) for transmitting a driving force to the first switching mechanism (110) is provided on the lower side and the side of the body of the first switching mechanism (110). A counter transmission member that is transmitted from the first switching mechanism (110) to the second switching mechanism (120) between the upper and lower parts of the switching mechanism (110) and the second switching mechanism (120) and above the transmission member (101). (130) is provided, and the planting output mechanism (150) is provided above the machine body and above the counter transmission member (130) with respect to the second switching mechanism (120). It was the transplant machine described in.

According to the third aspect of the present invention, the first switching mechanism (110) has a first switching small diameter rotating body (113a), a first switching medium diameter rotating body (113b), and a first switching transmission shaft (111). A switching large-diameter rotating body (113c) is provided, and the first switching small-diameter rotating body (113a) and the first switching medium-diameter rotating body (113b) are operated by operating the inter-stock switching member (170) in the first operating direction (X). A first switching shifter (114) for switching any of the first switching large-diameter rotating bodies (113c) together with the first switching transmission shaft (111) to a rotatable state is provided, and the second switching mechanism (120) is provided. ) Is provided with a second switching small diameter rotating body (123a), a second switching medium diameter rotating body (123b), and a second switching large diameter rotating body (123c) on the second switching transmission shaft (121), and the inter-stock switching member. By operating (170) in the second operation direction (Y), any one of the second switching small diameter rotating body (123a), the second switching medium diameter rotating body (123b), and the second switching large diameter rotating body (123c) can be used. A second switching shifter (124) for switching to a rotatable state is provided together with the second switching transmission shaft (121), and the increasing operation direction between the stocks of the first switching mechanism (110) by the inter-stock switching member (170) ( The increasing operation direction (YF) between the stocks of the second switching mechanism (110) is the same as that of the XF), and the decreasing operation direction (XR) between the stocks of the first switching mechanism (110) by the inter-stock switching member (170). The transplanting machine according to claim 1 or 2, wherein the reduction operation direction (YR) between the stocks of the second switching mechanism (110) is the same.

In the invention according to claim 4, a relay transmission member (140) for relaying a driving force from the second switching mechanism (120) to the planting output mechanism (150) is provided above the second switching mechanism (120). A relay transmission rotating body (141) is detachably provided at one side end of the relay transmission member (140), and an output rotating body (122) for transmitting a driving force is attached to and detached from the relay transmission rotating body (141). A covering member (100Ra) that is freely provided and has an opening (100Ra) in which both the relay transmission rotating body (141) and the output rotating body (122) are exposed is formed in the inter-stock switching mechanism (100) and covers the opening (100Ra). The transplanting machine according to any one of claims 1 to 3, wherein 162) is detachably provided in the inter-strain switching mechanism (100).

In the invention according to claim 5, spare seedling frames (50) for loading containers containing spare seedlings are provided on the left and right sides of the traveling vehicle body (40), and the spare seedling frames (50) are used for the traveling vehicle body (50). A fixed strut (51) provided on the 40), a seedling-mounted rotating member (53) rotatably provided on the fixed strut (51), and a strut member (54) on the seedling-mounted rotating member (53). The spare seedling frame (50) is composed of a seedling mounting table (55) provided via the interposition, and the spare seedling frame (50) has a support position (54) facing the front side of the machine body and a step member (54) facing the outside of the machine body and seedling mounting. The transplanter according to any one of claims 1 to 4, wherein the table (55) can be switched to a planting work position facing the inside of the machine body.

According to the invention of claim 1, since the first transmission mechanism (110) and the second transmission mechanism (120) can be arranged at different positions in the vertical direction, the left-right width of the inter-stock switching mechanism (100) becomes compact. , The space for arranging the inter-stock switching mechanism (100) on the traveling vehicle body (40) can be kept small.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the transmission member (101), the first switching mechanism (110), the counter transmission member (130) and the planting output mechanism (150) are each provided. By arranging them in a staggered manner in the vertical direction, both the horizontal width and the vertical width of the inter-stock switching mechanism (100) can be made compact, so that the arrangement space of the inter-stock switching mechanism (100) can be further reduced. become.

According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the increase operation direction (XF) between the stocks of the first switching mechanism (110) and the increase between the stocks of the second switching mechanism (120) The operation direction (YF) is the same, and the reduction operation direction (XR) between the stocks of the first switching mechanism (110) and the reduction operation direction (YR) between the stocks of the second switching mechanism (120) are the same. As a result, the operator can determine whether the inter-stock switching member (170) is increasing or decreasing from the operation direction, so that it is possible to prevent the setting between the stocks from being mistaken due to an erroneous operation.

According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, when the covering member (162) is removed, the output rotating body (122) and the relay transmission are relayed from the opening (100Ra). By exposing the rotating body (141), maintenance work can be easily performed.

Further, since the output rotating body (122) and the relay transmission rotating body (141) are detachably attached to each other, either one or both of the output rotating body (122) and the relay transmission rotating body (141) can be attached. By changing to one having a different diameter, it is possible to set a range of increase / decrease between shares by the first switching mechanism (110) and the second switching mechanism (120), and the expandability of working conditions is improved.

According to the invention according to claim 5, in addition to the effect of the invention according to any one of claims 1 to 4, when the spare seedling frame (50) is switched to the boarding / alighting work position, the support member (54) faces the front side of the machine body. As a result, the support column member (54) can be used as a handrail when getting on and off the traveling vehicle body (40), so that getting on and off becomes easy.

Further, when the planting work position is switched, the seedling mounting table (55) faces the inside of the machine body, so that the worker can easily take out the loaded seedlings and the work efficiency is improved.

Left side view of the transplanter Top view of the transplanter Right side view of the main part showing the internal structure of the inter-stock switching gear case Left side view of the main part showing the internal structure of the inter-stock switching gear case Front view of the main part showing the internal structure of the inter-stock switching gear case Rear view of the main part showing the internal structure of the inter-stock switching gear case Left side view of the main part showing the inter-stock switching gear case Rear view of the main part showing the inter-stock switching gear case Rear view of the main part showing the opening state of the rear opening of the inter-stock switching gear case (A) Side view showing the first inter-strain shifter, (b) Side view showing the second inter-stock shifter Schematic diagram showing the first and second sliding stoppers Rear view of the main part with the seedling supply device and planting device removed from the transplanter Side view of the main part with the seedling supply device, planting device and rear wheel of the transplanter removed Perspective view showing a transplanter

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a transplanter 10 for transplanting onion seedlings as an example of the transplanter according to the embodiment of the present invention, and FIG. 2 is a plan view of the transplanter 10.

In the following description, the side where the steering wheel 47 is arranged is the rear side, and the opposite side, that is, the side where the engine 41 is arranged is the front side. Then, the right-hand side is the right and the left-hand side is the left when facing the front side of the aircraft.

The transplanter 10 of the present embodiment includes a traveling vehicle body 40 capable of traveling forward, a steering handle 47 for walking maneuvering provided at the rear of the traveling vehicle body 40, a planting device 42 for planting seedlings in a field, and the like. A seedling supply device 43 for supplying seedlings to the planting device 42 is provided.

The traveling vehicle body 40 includes an engine 41, a pair of left and right drive wheels 44 that are driven and rotated by transmitting the power of the engine 41, and a pair of left and right front wheels 45 that are rotatably supported in front of the rear wheels 44. It has.

A mission case 39 is arranged behind the engine 41. The mission case 39 has a case portion extending from the left side portion thereof to the left side portion of the engine 41, and this case portion is connected to the left side portion of the engine 41. The output shaft of the engine 41 enters this case portion, and power is transmitted to the transmission mechanism in the transmission case 39.

The front portion of the traveling transmission case 38, which is long in the front-rear direction, is rotatably attached to both the left and right sides of the mission case 39. Specifically, an axle case 11 that rotates integrally with the traveling transmission case 38 is provided on the inner side of the fuselage at the front of the traveling transmission case 38, and the axle cases 11 are provided on both left and right sides of the mission case 39. It is rotatably attached, and the traveling transmission case 38 is rotatably attached corresponding to both the left and right sides of the mission case 39. Then, the rear wheel 44 is mounted on the rear wheel axle 12 projecting toward the rear side of the traveling transmission case 38.

The tip of the wheel drive shaft extending from the mission case 39 to the left and right outwards enters the position of the rotation axis at the front of the traveling transmission case 38, and the traveling unit system transmission transmission unit in the transmission case 39. The power for traveling that has passed through the above is transmitted to the transmission mechanism in the transmission case 38 for traveling. Then, the power for traveling is transmitted to the rear end axle 12 of the traveling transmission case 38 via the transmission mechanism in the traveling transmission case 38, and the rear wheels 44 are driven and rotated.

The left and right side clutches (not shown) provided in the mission case 39 can cut off the drive of the left and right rear wheels 44. Therefore, when turning the airframe, the side clutch is used to bring the left and right rear wheels 44, which are inside the turn, into a non-driving state so that the machine can turn smoothly.

Further, the traveling transmission case 38 is connected to a driving means that rotates up and down to move the rear wheel 44 up and down with the front side of the traveling transmission case 38 as a rotation fulcrum. Specifically, an arm 13 extending upward is integrally attached to the attachment portion of the traveling transmission case 38 to the mission case 39, and the lifting hydraulic cylinder in which the arm 13 is fixed to the mission case 39. It is connected to the left and right sides of the connecting body attached to the tip of the piston rod. One left and right side (right side) is connected by a connecting rod, and the other side (left side) is connected by a left and right horizontal control hydraulic cylinder that can be expanded and contracted according to the inclination of the aircraft.

When the elevating hydraulic cylinder operates and the piston rod protrudes to the rear of the machine body, the left and right arms 13 rotate backward, and the traveling transmission case 38 rotates downward accordingly to raise the machine body. On the contrary, when the piston rod of the lifting hydraulic cylinder moves to the front of the machine body and retracts into the cylinder, the left and right arms 13 rotate forward, and the traveling transmission case 38 rotates upward accordingly. The aircraft descends.

The lifting hydraulic cylinder is operated by a sensor 14 that touches the ridge surface and operates as the vertical distance between the machine body and the ridge surface fluctuates. The operation of the sensor 14 is an operation of detecting the height of the upper surface of the ridge based on the position of the machine, and based on the detection operation of the sensor 14, the machine is raised and lowered with a configuration in which the height is set according to the height of the upper surface of the ridge. The structure is such that the hydraulic cylinder operates.

Further, when the left-right horizontal control hydraulic cylinder expands and contracts, the left arm 13 connected to the left-right horizontal control hydraulic cylinder rotates to move only the left rear wheel 44 up and down to tilt the aircraft left and right. .. The left-right horizontal control hydraulic cylinder is configured to operate based on the detection result of a sensor that detects the left-right tilt of the machine with respect to the left-right horizontal to make the machine horizontal.

Vertical frames 17 that are long vertically are attached to the left and right sides of the horizontal frame 16 that is rotatably attached around the axis in the front-rear direction at the center position below the engine 41, and the left and right front wheels 45 are the vertical frames 17. It is rotatably attached to the front wheel axle 18 fixed to the side of the lower end of the vehicle. Therefore, the left and right front wheels 45 are movable around the axis in the front-rear direction at the center of the left and right sides of the airframe. Further, the vertical frame 17 is provided so as to be vertically adjustable with respect to the left and right side portions of the horizontal frame 16, so that the height of the front wheel 45 can be adjusted.

The steering handle 47 is provided at the rear of the fuselage, and is located on the rear side of the fuselage with respect to the rear axle 12 of the rear wheels 44. Specifically, it is attached to the rear end of the airframe frame 19 whose front end is fixed to the mission case 39.

The airframe frame 19 extends rearward at the center of the left and right sides of the airframe, and extends diagonally rearward and upward from the front-rear intermediate portion.

The steering handle 47 extends rearward to the left and right from the rear end of the fuselage frame 19, and each rear end thereof serves as a grip portion of the steering handle 47.

Although the grip portion is divided into left and right in FIG. 2, the left and right rear end portions of the steering handle 47 may be connected to each other on the left and right, and the connected portion may be used as the grip portion.

The planting device 42 raises and lowers a plurality of beak-shaped planting tools whose tips point downward, and a position where the lower end of the planting tool is above the field scene and a position below the field scene. The vertical movement mechanism 21 to move, the closed state where the lower end of the beak-shaped planting tool is closed and the seedlings can be received from above and the seedlings can be stored inside, and the lower end of the planting tool opens to the left and right to be stored inside. It is equipped with an opening / closing mechanism that opens and closes the planting tool in an open state that allows the seedlings to be released downward.

The planting device 42 of the present embodiment has a two-row planting structure in which the first planting tool 20a and the second planting tool 20b are arranged side by side. The first planting tool 20a and the second planting tool 20b are respectively mounted on the vertical movement mechanisms 21 provided on both the left and right sides of the transmission case 26 transmitted from the mission case 39. The transmission case 26 is fixed to the upper part of the mounting member whose lower part is fixed to the airframe frame 19.

The vertical movement mechanism 21 is provided with an elevating link in which the front portion is vertically rotatable with reference to the transmission case 26 and the planting tools are connected to the left and right sides of the rear portion. Then, the elevating link is moved up and down by the power from the inside of the transmission case 26 by a separately provided drive mechanism, and the first planting tool 20a and the second planting tool 20b connected to the left and right of the elevating link move up and down. It has become.

At the rising position of the vertical movement, the lower ends of the left and right planting tools 20a and 20b are located above the field scene, and at the descending position, the lower ends of the left and right planting tools 20a and 20b are located below the field scene.

The opening / closing mechanism of the left and right planting tools 20a and 20b is operated by power from the inside of the transmission case 26, and the left and right planting tools 20a and 20b are lowered to the lower end position in conjunction with the operation of the vertical movement mechanism 21. When it reaches, the lower side of the planting tools 20a and 20b is opened to the left and right to open downward, and when the left and right planting tools 20a and 20b rise and reach the upper end position, the lower side of the planting tools 20a and 20b Is closed to put it in a closed state.

The left and right vertical movement mechanisms 21 are configured to operate with 180-degree phases different from each other, and the first left and right planting tools 20a and the other left and right second planting tools 20b are the same in the field. The seedlings are planted in the front and back positions.

The seedling supply device 43 passes a plurality of seedling accommodating bodies 22 for receiving seedlings from above and accommodating seedlings inside, and the seedling accommodating bodies 22 passing above the first planting tool 20a and the second planting tool 20b. The bottom of the seedling container 22 is opened at a position above the first planting tool 20a and the second planting tool 20b, and the seedlings housed inside are dropped to drop the seedlings housed in the first planting. A seedling dropping mechanism for supplying seedlings to the tool 20a and the second planting tool 20b is provided.

Each seedling container 22 has a tubular body that opens up and down and a bottom lid that opens and closes an opening on the lower side of the tubular body, and is connected to each other in a loop.

The moving mechanism 23 is a state in which each of the connected seedling accommodating bodies 22 passes in the upper vicinity of the left and right planting tools 20a and 20b, and the connected seedlings are formed by a long circular loop-shaped locus in the plan view of the machine body. The accommodating body 22 is rotated counterclockwise.

The seedling dropping mechanism opens the bottom lid of the seedling container 22 at a position above the first planting tool 20a or the second planting tool 20b corresponding to the seedling container 22.

In the present embodiment, an outer peripheral portion of a cylinder is formed on the outer periphery of the seedling accommodating body 22, and an engaging portion (round hole) rotatably connected from the outside is provided on the outer peripheral portion of the cylinder to provide two seedling accommodating bodies 22. A plurality of connecting bodies for connecting the above were formed. Then, the engaging portion of the connecting body is rotatably connected to the outer peripheral portion of the cylinder of the seedling containing body 22, and the adjacent seedling containing body 22 is rotatably connected with the outer peripheral portion of the cylinder as the rotation axis. , A plurality of seedling accommodating bodies 22 are connected to each other. That is, the seedling accommodating body 22 and the connecting body are connected like an endless chain.

As a result, the distance between the seedling container 22 and the adjacent seedling container 22 does not change in both the linear portion 28 that moves linearly and the arc-shaped portion 29 that moves in an arc shape. At the place where the seedlings are supplied to the planting tools 20a and 20b, the position shift based on the left and right planting tools 20a and 20b of the seedling container 22 is less likely to occur, and the seedlings are properly supplied and the seedlings are appropriate. Can be planted.

The moving mechanism 23 of the seedling supply device 43 winds the seedling accommodating bodies 22 connected to each other like an endless chain around the arcuate notches on the outer periphery of the sprockets provided on the left and right, and takes out the left and right sprockets from the transmission case 26. Each seedling accommodating body 22 is configured to rotate around the circumference by driving and rotating with the power.

The orbital movement path around which the seedling container 22 orbits is a length including a linear portion 28 extending in the left-right direction in a plan view and an arc-shaped portion 29 that bends in an arc shape from the linear portion 28 to the front side or the rear side by a sprocket. It has a circular shape and is arranged inside the fuselage from the left and right rear wheels 44.

Further, the left and right planting tools 20a and 20b are arranged on the rear side of the position of the rear wheel axle 12.

The seedling supply device 43 has a configuration in which the seedling accommodating body 22 orbits around in accordance with the left and right first planting tools 20a and the second planting tool 20b to supply seedlings.

As shown in the figure, in the first planting tool 20a and the second planting tool 20b, seedlings are dropped and supplied from the seedling container 22 at the first drop supply position 31a and the second drop supply position 31b, respectively.

A seedling accommodating body 22 for accommodating seedlings to be dropped and supplied corresponding to the left and right planting tools 20a and 20b is separately provided, and above the left and right planting tools 20a and 20b corresponding to the seedling accommodating body 22. The bottom lid opens only when it comes, and the bottom lid does not open above the left and right planting tools 20a and 20b that do not correspond to each other.

That is, only when the seedling container 22 corresponding to the first planting tool 20a comes to the first drop supply position 31a, and when the seedling container 22 corresponding to the second planting tool 20b comes to the second drop supply position 31b. Only, the bottom lid is opened and seedlings are supplied to the corresponding planting tools 20a and 20b.

The operating cycle of the moving mechanism 23 is set to be synchronized with the operating cycle of the vertical moving mechanism 21, and the seedling accommodating bodies 22 corresponding to the left and right planting tools 20a and 20b are combined to form one seedling accommodating body unit. By connecting a plurality of the seedling storage units, the seedling storage 22 passes through the left and right drop supply positions 31a and 31b in series, and the seedlings are supplied corresponding to the left and right planting tools 20a and 20b. In order to prevent the seedling housing 22 from being supplied with seedlings after passing through the left and right drop supply positions 31a and 31b without causing leakage, the left and right planting tools 20a and 20b are fully supplied. The structure is such that seedlings can be supplied accordingly.

In the transplanter 10 of the present embodiment, the soil-covering pressure ring 37 used for soil-covering and suppressing the seedlings planted by the left and right planting tools 20a and 20b is used to plant the seedlings of the left and right planting tools 20a and 20b. It is provided near each rear left and right side of.

Further, a worker's seat 46 on which the worker sits is provided so that the worker who supplies the seedlings can get on the seedling supply device 43 to perform the seedling supply work. Specifically, the worker seats 46 are arranged backward at the center positions on the left and right sides of the machine body, which is the front side of the seedling supply device 43. The worker sitting in the worker seat 46 sits in a rearward posture toward the front side of the seedling supply device 43, and is on the front side of the seedling supply device 43, particularly on the front side in the orbital movement path of the seedling container 22. Seedling replenishment work is performed corresponding to the linear portion 28.

Spare seedling frames 50 capable of accommodating seedlings to be supplied to the seedling supply device 43 are provided above the rear wheel axle 12 of the rear wheels 44 on both the left and right sides of the worker seat 46 when viewed from the side of the machine body.

The left and right planting tools 20a and 20b are moved up and down by the vertical movement mechanism 21, and the seedlings are planted in the field at a predetermined front-rear interval, that is, at a predetermined interval as the traveling vehicle body 40 travels forward.

The space between the seedlings is large, which is provided in the vehicle speed transmission set by operating the speed change lever 60 operably provided from the traveling vehicle body 40 and in the inter-stock switching gear case 100 provided at the rear of the mission case 39. It can be changed by the switching setting of the first inter-stock gear mechanism 110 for switching between the two stocks and the second inter-stock gear mechanism 120 for switching between small stocks.

The switching between large stocks by the first inter-stock gear mechanism 110 indicates an increase / decrease between stocks of 3 to 6 cm as an example, and the switching between small stocks by the second inter-stock gear mechanism 120 is 1 to 2 cm as an example. Shows the increase / decrease between stocks. However, the increase / decrease between the stocks that can be switched varies depending on the diameter of the gear used, and is not limited to the above figures.

The above-mentioned switching mechanism between stocks will be described in detail.

As shown in the figure, the inter-stock switching case 100 is mounted on the left rear portion of the mission case 39. As shown in FIGS. 3 to 6, a driving force is input from the mission case 39 to the inter-stock switching case 100 via the transmission shaft 101, and is located on the rear side of the transmission shaft 101, that is, inside the inter-stock transmission case 100. A planting clutch 102 for switching the on / off of the planting transmission is provided on the side to be switched on the transmission shaft 101. Further, a transmission gear 103 that rotates together with the transmission shaft 101 is mounted on the rear end side of the transmission shaft 101.

Splines are applied to the outer circumference of the transmission shaft 101 on the rear side of the machine body and the shaft attachment portions of the planting clutch 102 and the transmission gear 103 to prevent slippage.

The transmission shaft 101, the planting clutch 102, and the transmission gear 103 are arranged inside the machine body (on the left and right center side of the machine body) and on the lower side of the machine body of the inter-stock transmission case 100.

The first interstock gear mechanism 110 is arranged outside the machine body and above the machine body with respect to the transmission shaft 101. The first inter-stock gear mechanism 110 has a different diameter from the first inter-stock transmission shaft 111 and the first inter-stock input gear 112 provided on the rear side of the machine body of the first inter-stock transmission shaft 111 and meshing with the transmission gear 103. Between the first inter-stock output gear unit 113 composed of a plurality of gears (three in this example) and the first inter-stock that selects a gear that transmits a driving force from a plurality of gears constituting the first inter-stock output gear unit 113. It is composed of a shifter 114.

The first inter-stock output gear unit 113 is arranged near the front part of the machine body and the first inter-stock small diameter gear 113a which is arranged near the rear part of the machine body and selects the smallest inter-stock area among the first stocks. It is arranged between the front and rear of the first inter-stock large-diameter gear 113c, which has the largest diameter and selects the largest inter-stock gear among the first stocks, and the first inter-stock small-diameter gear 113a and the first inter-stock large-diameter gear 113c. It is composed of the first inter-stock medium diameter gear 113b.

Further, the first inter-stock shifter 114 is arranged above the transmission shaft 101 and is slidable in the front-rear direction of the machine body, and a first shifter rod 115 and a first switching provided on the front side of the machine body of the first shifter rod 115. The arm 116 and the first switching arm 116 slide in the front-rear direction of the first inter-stock transmission shaft 111 to form a first inter-stock small-diameter gear 113a, a first inter-stock medium-diameter gear 113b, and a first inter-stock large-diameter gear 113c. Of these, the first key 117 is used to select the one that is transmitted to the lower side in the transmission direction.

Of the first shifter rods 115, as shown in FIG. 10A, a plurality of (three places in this example) first shifter grooves 115a, 115b, 115c are formed on the rear side of the machine body, and the first shifter rod 115 is formed. 1 A first sliding stopper 118 that prevents the first shifter rod 115 from sliding back and forth regardless of the operator's operation is brought into contact with any of the shifter grooves 115a, 115b, 115c, and the seedling planting plants suddenly change. Prevent it from happening.

As shown in FIG. 11, the first sliding stopper 118 includes a first stopper ball 118a that comes into contact with the first shifter grooves 115a, 115b, 115c, and the first stopper ball 118 with the first shifter grooves 115a, 115b, 115c. It is composed of a first spring 118b that is pressed against the ball and a first stopper bolt 118c that receives the first spring 118b.

As shown in FIGS. 3 and 4, a large-diameter counter gear 131a that meshes with the first inter-stock small-diameter gear 113a and a first inter-stock transmission shaft 111 on the upper side of the machine body and inside the machine body of the first inter-stock gear mechanism 110. A counter transmission shaft 130 equipped with a counter gear unit 131, which is composed of a medium-diameter counter gear 131b that meshes with the inter-stock medium-diameter gear 113b and a small-diameter counter gear 131c that meshes with the first inter-stock large-diameter gear 113c, is rotatably provided. The counter transmission shaft 130 transmits to the lower side in the transmission direction via the gear of the counter gear unit 131 that meshes with the gear of the first inter-stock gear unit 113 whose transmission state is selected by the first key 117.

Then, the second inter-stock gear mechanism 120 is arranged on the upper side of the counter transmission shaft 130 of the counter gear unit 131 and on the outer side of the machine body. The second inter-strain gear mechanism 120 includes a second inter-strain transmission shaft 121, a second inter-strain output gear unit 123 composed of a plurality of gears (three in this example) having different diameters, and the second inter-stock output gear unit 123. It is composed of a second inter-stock shifter 124 for selecting a gear for transmitting a driving force from a plurality of gears constituting the above, and a first inter-stock output gear 122 provided on the rear side of the machine body of the second inter-stock transmission shaft 121. The outer circumference of the second inter-stock transmission shaft 121 on the rear side of the machine body and the shaft attachment portion of the first inter-stock output gear 122 are splined to suppress slippage and are easily attached to and detached from the second inter-stock transmission shaft 121. It is configured.

The second inter-strain output gear unit 123 includes a second inter-strain small-diameter gear 123a that meshes with the large-diameter counter gear 131a and selects between the smallest diameter and the smallest among the second stocks, and the small-diameter counter gear 131c. It is arranged between the front and rear of the second inter-strain large-diameter gear 123c, which selects the largest inter-strain gear and the second inter-strain large-diameter gear 123a, and the second inter-strain large-diameter gear 123c, which mesh with each other. It is composed of the second inter-stock medium diameter gear 123b.

Further, the second inter-strain shifter 124 is arranged below the counter transmission shaft 130 and outside the machine body, and is located on the second shifter rod 125 which is slidable in the front-rear direction of the machine body and on the front side of the body of the second shifter rod 125. The second switching arm 126 provided and the second switching arm 126 slide in the front-rear direction of the second inter-strain transmission shaft 121, and the second inter-strain small diameter gear 123a, the second inter-strain medium diameter gear 123b, and the second inter-strain transmission arm 126 It is composed of a second key 127 for selecting a large-diameter gear 123c that is transmitted to the lower side in the transmission direction.

Of the second shifter rod 125, as shown in FIG. 10B, a plurality of (three places in this example) second shifter grooves 125a, 125b, 125c are formed on the rear side of the machine body, and the second shifter rod 125 is formed. 2 A second sliding stopper 128 that prevents the second shifter rod 125 from sliding back and forth regardless of the operator's operation is brought into contact with any of the shifter grooves 125a, 125b, and 125c, and the seedling planting plants suddenly change. Prevent from doing.

As shown in FIG. 11, the second sliding stopper 128 includes a second stopper ball 128a that contacts the second shifter grooves 125a, 125b, 125c, and the second stopper ball 128 with the second shifter grooves 125a, 125b, 125c. It is composed of a second spring 128b that presses against the second spring 128b and a second stopper bolt 128c that receives the second spring 128b.

As shown in FIGS. 3 and 4, a relay transmission shaft 140 is arranged above the second inter-stock transmission shaft 121 of the second inter-strain gear mechanism 120, and the second inter-stock transmission shaft 140 is located on the rear side of the machine body. A relay input gear 141 having a diameter larger than that of the first inter-share output gear 122, which meshes with the inter-share output gear 122, is provided. Further, a second inter-stock output gear 142 is integrally rotatably mounted near the front-rear center portion of the relay transmission shaft 140.

The outer circumference of the relay transmission shaft 140 on the rear side of the machine body and the shaft attachment portion of the relay input gear 141 are splined to prevent slippage and to be easily attached to and detached from the relay transmission shaft 140.

Then, the planting device 42 and the seedling supply device 43 provided with the driving force at the rear part of the machine body are provided with a driving force on the lower side of the machine body and inside the machine body than the relay transmission shaft 140, and on the upper side of the machine body and inside the machine body than the second interstock transmission shaft 121. The planting output shaft 151, which constitutes the transmitted PTO shaft 150, is arranged. The PTO shaft 150 rotates the planting output shaft 151 arranged in the inter-stock switching gear case 100, the transmission shaft 152 toward the rear of the machine body, and the transmission shaft 152 in the vertical direction and the horizontal direction on the planting output shaft 151. It is composed of a universal joint 153 that is movably connected.

A second inter-strain input gear 154 having a diameter larger than that of the second inter-strain output gear 142, which meshes with the second inter-strain output gear 142, is integrally rotatably mounted near the front-rear center portion of the planting output shaft 151.

As shown in FIGS. 7 to 9, the plurality of gear mechanisms and the plurality of transmission shafts are covered with the front side case cover 100F and the rear side case cover 100R constituting the inter-stock transmission case 100. A plurality of screw holes (not shown) are formed in the front case cover 100F and the rear case cover 100R, and bolts 160 ... Are inserted into these screw holes from the front side and the rear side of the machine body to connect them. When the bolt 160 ... Is removed, the connection between the front case cover 100F and the rear case cover 100R is released, and internal maintenance work and the like are possible.

At the upper part of the front case cover 100F, at a position closer to the inside of the machine body than the arrangement position of the relay transmission shaft 140, an opening for injection work for injecting a lubricant such as oil or grease into the inter-stock transmission case 100 (not shown). (Omitted) is formed, and the oil cap 161 is detachably arranged in this opening.

Of the rear case cover 100R, on the rear side of the fuselage of the second inter-stock transmission shaft 121 and the relay transmission shaft 140, that is, on the side where spline processing is performed and the first inter-stock output gear 122 and the relay input gear 141 are provided. , As shown in FIG. 9, a rear opening 100Ra is formed, and the rear opening 100Ra is provided with a covering plate 162 having substantially the same shape as the rear opening 100Ra and larger than the rear opening 100Ra. , As shown in FIG. 8, it is detachably attached via a plurality of bolts 160.

When the covering plate 162 is removed to open the rear opening 100Ra, the first inter-stock output gear 122 and the relay input gear 141 are exposed, and the rear side of the machine body is exposed along the second inter-stock transmission shaft 121 and the relay transmission shaft 140. It can be removed by moving it to.

As a result, maintenance work of the first inter-stock output gear 122 and the relay input gear 141 can be easily performed.

Further, by changing the first inter-strain output gear 122 and the relay input gear 141 to gears having different diameters, it is possible to change the setting between the seedling planting stocks. It should be noted that the setting change between planted stocks referred to here is not a setting change between stocks during planting work, but an appropriate planting stock setting according to crops with different cultivation conditions other than onions assumed in the present application. means.

By exchanging some gears, it becomes possible to handle the planting work of another crop, so that it is not necessary to separately prepare a dedicated transplanter for another crop, and the farming work cost can be significantly reduced.

As shown in FIGS. 3 to 9, the inter-stock transmission case 100 is provided with a single inter-stock switching lever 170 for switching between the first inter-stock gear mechanism 110 and the second inter-stock gear mechanism 120. The inter-stock switching lever 170 is provided with the operation grip 171 fitted into the upper end portion located above the upper bending portion 170a, with the upper side bent toward the front of the machine body. Further, the lower side of the upper bent portion 170a is an inclined posture located inside the fuselage toward the lower side of the fuselage, and the lower bent portion 170b is formed on the lower side of the fuselage, so that the lower bent portion 170b is viewed from the rear. The inside of the fuselage is configured to incline at a gentler angle than the outside of the fuselage.

Then, in the vicinity of the lower end portion (inner end portion of the machine body) of the inter-stock switching lever 170, a first lever arm 172 for switching the first inter-stock gear mechanism 110 by sliding the first shifter rod 115 back and forth is provided between the stocks in a side view. It is mounted so that it can rotate back and forth together with the switching lever 170. A switching recess 172a for sandwiching the first connecting pin 119 provided on the rear side of the machine body of the first shifter rod 115 is formed in the lower portion of the first lever arm 172.

A holding plate 174 in the left-right direction is attached to the lower side and the rear side of the covering plate 162 via bolts 160, etc., and the inside of the holding plate 174 is bent toward the rear of the machine body to hold and bend. Form 174a. A first shaft opening 175 through which the lower end of the inter-stock switching lever 170 passes and a recess 176 through which the first connecting pin 119 passes are formed on the rear side of the machine body with respect to the holding bending portion 174a. As a result, as shown in FIGS. 3, 4, and 7, the inter-stock switching lever 170 is rotatably held in the front-rear rotation direction (first operation direction) X in a side view.

Further, a second lever arm 177 having a bent portion 177a formed is connected to the rear end portion of the body of the second shifter rod 125 by a connecting bolt 173, and an inter-stock switching lever is connected to the front side of the machine body from the bent portion 177a in a side view. A second shaft opening 178 through which 170 passes is formed.

A soft ring-shaped member (not shown) having elasticity such as rubber is provided on the inner peripheral portions of the first shaft opening 175 and the second shaft opening 178, and the back-and-forth rotation direction X of the inter-stock switching lever 170 is provided. It is preferable that the fulcrum portion is twisted during the operation and the operation in the front-rear swing direction Y so that the first shifter rod 115 and the second shifter rod 125 can be sufficiently moved back and forth.

Since the second shifter rod 125 is connected to the second switching arm and the second lever arm 177, when the inter-stock switching lever 170 is operated in the front-rear swing direction (second operation direction) Y, the second shifter rod 125 moves back and forth. It will be configured to move.

The length from one side end of the inter-stock switching lever 170 where the operation grip 171 is provided to the other end side which becomes a fulcrum during the rotation operation in the front-back rotation direction X is, for example, at least 15 cm or more, and the other. It should be as long as possible, taking into consideration the difficulty of contact with members and workers' feet.

As a result, the amount of operation of the inter-stock switching lever 170 during the rotation operation in the front-rear rotation direction X becomes large, so that it is easy for the operator to grasp that the inter-stock switching is being performed significantly, and it is distinguished from the operation of slightly switching between the stocks. It becomes easier to do, and the occurrence of erroneous operation is prevented.

Further, since the rotation fulcrum of the inter-stock switching lever 170 in the front-rear rotation direction X is near the first shifter rod 115, the inter-stock switching lever 170 is operated in the front-rear swing direction Y in order to move the second shifter rod 125 back and forth. At this time, the first shifter rod 115 moves back and forth to switch the first inter-stock gear mechanism 110, and it is prevented that different stocks are set.

The side on which the operation grip 171 of the inter-stock switching lever 170 is provided is one side on the left and right sides of the traveling vehicle body 40, and is provided in the lower space portion of the worker seat 46. Further, the speed change lever 60 is arranged inside the machine body with respect to the inter-stock switching lever 170 in the space below the worker's seat 46.

The speed change lever 60 has a longitudinal direction in the front-rear direction of the machine body, and is switched to either "low speed", "medium speed", or "high speed" by rotating in the left-right direction with the front end as a rotation fulcrum. Even if the shift lever 60 is operated in the outermost direction of the machine body, the shift lever 60 and the inter-stock switching lever 170 are arranged so as not to interfere with each other. This does not matter the operating position of the inter-stock switching lever 170.

As a result, the worker can perform the setting work between the stocks on the same left and right sides of the traveling vehicle body 40, so that the frequency of movement during the stock switching work can be suppressed, and the work time can be shortened and the labor can be reduced.

It should be noted that operating inside the aircraft results in "low speed", and operating outside the aircraft results in "high speed".

Next, the change between the planted seedlings by switching the vehicle speed transmission and switching between the first inter-strain gear mechanism 110 and the second inter-strain gear mechanism 120 will be described with reference to Table 1. If the same label as in Table 1 is created and attached within the visible range of the operator who operates the inter-stock switching lever 170, the operating direction of the inter-stock switching lever 170 becomes wider or narrower between the stocks. It becomes easier to grasp.

First, as described above, the speed change lever 60 switches the running speed of the traveling vehicle body 40 into three stages of "low speed", "medium speed" and "high speed" by switching the speed change gear mechanism built in the transmission case 39. is there. The faster the traveling speed, the longer the distance the planting device 42 advances while performing the ascending and descending operations once. Therefore, the front-rear interval (between stocks) for planting seedlings in the field is changed by setting the vehicle speed.

Next, when the inter-stock switching lever 170 is operated in the front-rear rotation direction X, the first shifter rod 115 swings in the front-rear direction to change the front-rear position of the first key 117, and the counter is transmitted from the first inter-stock transmission shaft 111. The gear of the first inter-stock output gear unit 113 transmitted to the shaft 130 is changed.

On the rear side of the machine body of the first inter-stock transmission shaft 111, the first inter-stock small diameter gear 113a for setting the narrowest inter-stock space is provided by the first inter-stock gear mechanism 110, and on the front side of the machine body, the first inter-stock gear mechanism 110 is used. Since the first inter-stock large-diameter gear 113c that sets the widest inter-stock spacing is provided, as shown in FIGS. 3, 4, and 7, when the inter-stock switching lever 170 is rotated in the front rotation direction XF, the inter-stock switching lever 170 is rotated. Is significantly widened, and when the rotation operation is performed in the rear rotation direction XR, the space between the stocks is significantly narrowed.

The above-mentioned significant changes between stocks are switched every 3 cm at "low speed", every 3 to 5 cm at "medium speed", and every 5 cm or 6 cm at "high speed", depending on the vehicle speed setting.

Regarding the switching of the vehicle speed, the distance between the stocks is increased or decreased by a minimum of 10 cm and a maximum of 17 cm, and the gears can be switched more significantly than the switching between the stocks by the first inter-stock gear mechanism 110.

Next, when the inter-stock switching lever 170 is operated in the front-rear swing direction Y, the second shifter rod 125 swings in the front-rear direction to change the front-rear position of the second key 127, and the counter transmission shaft 130 to the second inter-stock transmission The gear of the second inter-stock output gear unit 123 that receives the driving force to the shaft 121 is changed.

On the rear side of the machine body of the second inter-stock transmission shaft 121, a second inter-stock small diameter gear 123a is provided, which sets the narrowest inter-stock space in the second inter-stock gear mechanism 120, and on the front side of the machine body, the second inter-stock gear mechanism 120 is used. Since the second inter-stock large-diameter gear 123c that sets the widest inter-stock spacing is provided, as shown in FIGS. 3, 4 and 7, when the inter-stock switching lever 170 is swung in the front swing direction YF, the inter-stock switching lever 170 is swung. Is narrowed to a small width, and when the rocking operation is performed in the rear swing direction YR, the space between the stocks is narrowed to a small width.

That is, in both the first inter-stock gear mechanism 110 and the second inter-stock gear mechanism, when the inter-stock gear mechanism is widened, the inter-stock switching lever 170 is rotated or swung toward the front side of the machine body, and the inter-stock space is narrowed. At this time, the inter-stock switching lever 170 is rotated or swung to the rear side of the machine body. By unifying the operation direction of the inter-stock switching lever 170 when increasing / decreasing between stocks, it becomes easy to prevent the operator from making a mistake in the operation of increasing / decreasing between stocks.

The above-mentioned small change between stocks is switched every 1 cm at "low speed" and every 1 cm or 2 cm at "medium speed" and "high speed", although it depends on the setting of the vehicle speed.

The large-diameter counter gear 131a, the medium-diameter counter gear 131b, and the small-diameter counter gear 131c mounted on the counter transmission shaft 130 are the first inter-stock small-diameter gear 113a, the first inter-stock medium-diameter gear 113b, and the first inter-stock large-diameter gear. The 113c, the second inter-stock small diameter gear 123a, the second inter-stock medium diameter gear 123b, and the second inter-stock large diameter gear 123c are meshed with each other, but only the gears selected by the first key 117 and the second key 127 mesh and rotate. It is possible to transmit the driving force, and the other gears that are not selected are configured so that they do not slip and affect the transmission of the driving force.

In the above configuration, for example, when it is desired to set the distance between the stocks to 37 cm, the speed change lever 60 is operated to set the vehicle speed to "medium speed", and the inter-stock switching lever 170 is operated to operate the first inter-stock transmission shaft 111 to the counter transmission shaft 130. The transmission to the first stock medium diameter gear 113b and the medium diameter counter gear 131b is set to be performed, and the transmission from the counter transmission shaft 130 to the second stock transmission shaft 121 is performed by the large diameter counter gear 131a and the second. The setting is made by meshing the inter-stock small diameter gear 123a.

Further, for example, when it is desired to set the distance between the stocks to 60 cm, the speed change lever 60 is operated to set the vehicle speed to "high speed", and the inter-stock switching lever 170 is operated to transmit the transmission from the first inter-stock transmission shaft 111 to the counter transmission shaft 130. Is set to be performed by meshing the first inter-stock large diameter gear 113c and the small diameter counter gear 131a, and the transmission from the counter transmission shaft 130 to the second inter-stock transmission shaft 121 is performed by the small diameter counter gear 131c and the second inter-stock large diameter gear 123c. It is set to be performed by the meshing of.

According to the above, in the seedling transplanter of this configuration, the vehicle speed, the first inter-strain gear mechanism 110 and the second inter-strain gear mechanism 120 can be switched in three stages, respectively, so that the strains can be switched in 27 stages, and the area and cultivation method can be switched. Even if it is necessary to change the stocks due to the difference in the above, it is possible to respond flexibly.

In addition, by operating one inter-stock switching lever 170 in different directions, it is possible to switch between the first inter-stock gear mechanism 110 and the second inter-stock gear mechanism 120, which reduces the number of parts and reduces the weight of the machine. And the configuration can be simplified.

In particular, as compared with the case where the first inter-stock gear mechanism 110 and the second inter-stock gear mechanism 120 are operated by separate operating members, it is easier to prevent the setting between the stocks from being different from the operator's assumption by forgetting the operation. , The planting of seedlings between wrong stocks is prevented, and there is no need to redo the planting work.

Further, by setting the switching operation of the first inter-stock gear mechanism 110 and the second inter-stock gear mechanism 120 to the front-rear rotation direction X and the front-rear swing direction Y, the operator can determine which is switched by the operation at the time of operation. Since it is easy to grasp, it is possible to prevent the wrong stock spacing from being set due to an erroneous operation.

In addition to this, the front rotation operation XF and the front swing operation YF of the inter-stock switching lever 170 both widen the space between the stocks, and the rear rotation operation XR and the rear swing operation YR both narrow the space between the stocks. Since it becomes easier to grasp whether the stock spacing is widened or narrowed, it is further prevented that an incorrect stock spacing is set.

Further, as shown in FIGS. 5 and 6, in front view or rear view, the transmission shaft 101, the first inter-strain transmission shaft 111, the counter transmission shaft 130, the second inter-stock transmission shaft 121, the planting output shaft 151, and the relay transmission shaft By arranging the 140s in a staggered manner in the vertical direction, the left-right width of the inter-stock switching gear case 100 can be narrowed, so that the space for arranging the transmission cases 39 on the left and right sides on the rear side of the machine body can be suppressed.

Although the inter-stock switching gear case 100 is slightly longer in the vertical direction, the vertical length can be suppressed by the staggered arrangement in the vertical direction, so that the arrangement space can be further reduced.

The spare seedling frame 50 is provided with a support stay 52 on the upper part of a seedling mounting column 51 projecting to the outside of the traveling vehicle body 40, and the supporting stay 52 can be switched between a rotating state and a non-rotating state. An arm 53 is provided, and seedling frame frames 54 and 54 in the vertical direction are arranged at intervals on the seedling mounting rotation arm 53, and seedlings for replenishment are housed on the same surface of the seedling frame frames 54 and 54. One side end of a mounting table 55 on which a container such as a seedling box or a seedling tray is placed is attached.

Only one mounting table 55 may be provided in the vertical direction, but a plurality of mounting tables 55 may be arranged at intervals in the vertical direction so as not to hinder the removal of the container. In the figure, three mounting stands 55 are provided in the vertical direction.

The spare seedling frames 50 having the above configuration are provided on the left and right sides of the traveling vehicle body 40, respectively, and the seedling mounting rotation arm 53 is rotated on the support stay 52 according to the situation.

For example, when planting seedlings, the longitudinal direction of the mounting table 55 is directed to the front-rear direction of the machine, so that the container for seedlings can be taken out from the mounting table 55 and the empty container can be easily returned to improve work efficiency. Can be improved.

Further, since the mounting table 55 is located on both the left and right sides of the traveling vehicle body 40 at this position, it becomes easier for the operator to grasp the end portion of the riding vehicle body 40, and the legs protrude from the traveling vehicle body 40 and the posture Is prevented from breaking.

Further, when the worker gets on and off the traveling vehicle body 40, the seedling mounting rotation arm 53 is rotated by about 90 degrees.

As a result, space for getting on and off is formed on both the left and right sides of the traveling vehicle body 40.

The operator can also get on and off from the front side of the traveling vehicle body 40, but the seedling frame rotating arm 53 is rotated so that the seedling frame frames 54 and 54 are located on the front side of the machine body, and the mounting table 55 is rear of the machine body. When the state is located on the side, the worker can use the seedling frame frames 54 and 54 as handrails, so that the traveling vehicle body 40 can get on and off smoothly.

Further, when loading or unloading the seedling container on the mounting table 55, there is no member that hinders the loading and unloading of the container from the rear side of the machine body, so that the work efficiency is improved.

The worker seat 46 is attached to the traveling vehicle body 40 in a U-shape in front view or rear view, and is in the left-right direction of the machine body among the seat frames 49 straddling the body cover 48 covering the upper part of the engine 41 and the like. It is attached to the upper part of the part. The lower ends of the left and right sides of the seat frame 49 are slide frames (not shown) that move the left and right traveling transmission cases 38 and 38 in the left and right directions to change the left and right spacing of the left and right rear wheels 44 and 44 (not shown). Connect to.

As a result, the seat frame 49 also serves as a constituent member of the slide portion, so that the strength of the slide portion can be improved.

The transplanter according to the present invention is intended to improve work efficiency while preventing erroneous operation of switching operation between strains, and is applied to a transplanter equipped with a planting device for planting a transplant target such as a seedling or a seed potato. It can be used industrially.

40 Traveling vehicle body 42 Planting device 43 Seedling supply device 50 Spare seedling frame 51 Seedling support (fixed support)
53 Seedling rotation arm (seedling rotation member)
54 Seedling frame frame (support member)
55 Seedling stand 60 Shift lever (shift control member)
100 Inter-share switching gear case (Inter-share switching mechanism)
110 1st inter-stock gear mechanism (1st switching mechanism)
113 1st inter-stock output gear unit (1st inter-stock gear unit)
114 1st inter-stock shifter (1st switching shifter)
120 Second interstock gear mechanism (second switching mechanism)
123 Second interstock output gear unit (second interstock gear unit)
124 Second stock shifter (second switching shifter)
170 Inter-stock switching lever (inter-stock switching member)
172 1st lever arm (1st connecting member)
177 2nd lever arm (2nd connecting member)
X 1st operation direction Y 2nd operation direction

Claims (5)

The seedling supply device (43) that supplies seedlings to the traveling vehicle body (40), the planting device (42) that receives seedlings from the seedling supply device (43) and plants them in the field, and the planting device (42) are seedlings. In a transplanter provided with an inter-strain switching mechanism (100) for changing the planting interval and an inter-strain switching member (170) for operating the inter-strain switching mechanism (100).
The inter-strain switching mechanism (100) is composed of a first switching mechanism (110) that greatly increases or decreases the number of stocks and a second switching mechanism (120) that slightly increases or decreases the number of stocks.
Of the first switching mechanism (110) and the second switching mechanism (120), the side transmitted to the planting output mechanism (150) transmitted to the seedling supply device (43) and the planting device (42) is on the upper side of the machine body. A transplanter characterized by being arranged. A transmission member (101) for transmitting a driving force to the first switching mechanism (110) is provided on the lower side and side of the body of the first switching mechanism (110).
Transmission is transmitted from the first switching mechanism (110) to the second switching mechanism (120) between the upper and lower sides of the first switching mechanism (110) and the second switching mechanism (120) and above the transmission member (101). A counter transmission member (130) is provided,
The transplanter according to claim 1, wherein the planting output mechanism (150) is provided above the second switching mechanism (120) and above the counter transmission member (130). The first switching mechanism (110) has a first switching small diameter rotating body (113a), a first switching medium diameter rotating body (113b), and a first switching large diameter rotating body (113c) on the first switching transmission shaft (111). 1st switching small diameter rotating body (113a), 1st switching medium diameter rotating body (113b), 1st switching large diameter rotating body by operating the inter-stock switching member (170) in the first operation direction (X). A first switching shifter (114) for switching any of (113c) to a rotatable state together with the first switching transmission shaft (111) is provided.
The second switching mechanism (120) has a second switching small diameter rotating body (123a), a second switching medium diameter rotating body (123b), and a second switching large diameter rotating body (123c) on the second switching transmission shaft (121). The second switching small diameter rotating body (123a), the second switching medium diameter rotating body (123b), and the second switching large diameter rotating body are provided by operating the inter-stock switching member (170) in the second operation direction (Y). A second switching shifter (124) for switching any of (123c) to a rotatable state together with the second switching transmission shaft (121) is provided.
The increasing operation direction (XF) between the stocks of the first switching mechanism (110) by the inter-stock switching member (170) and the increasing operation direction (YF) between the stocks of the second switching mechanism (110) are the same, and the above-mentioned The feature is that the reduction operation direction (XR) between the stocks of the first switching mechanism (110) by the inter-stock switching member (170) and the reduction operation direction (YR) between the stocks of the second switching mechanism (110) are the same direction. The transplanter according to claim 1 or 2. A relay transmission member (140) for relaying a driving force from the second switching mechanism (120) to the planting output mechanism (150) is provided above the second switching mechanism (120), and the relay transmission member (140) is provided. A relay transmission rotating body (141) is detachably provided at one end of the above, and an output rotating body (122) for transmitting a driving force is detachably provided on the relay transmission rotating body (141).
An opening (100Ra) in which both the relay transmission rotating body (141) and the output rotating body (122) are exposed is formed in the inter-stock switching mechanism (100), and a covering member (162) covering the opening (100Ra) is provided. The transplanter according to any one of claims 1 to 3, wherein the inter-stock switching mechanism (100) is detachably provided. Spare seedling frames (50) for loading containers containing spare seedlings are provided on the left and right sides of the traveling vehicle body (40).
The spare seedling frame (50) includes a fixed support column (51) provided on the traveling vehicle body (40), a seedling mounting rotating member (53) rotatably provided on the fixed support column (51), and the seedling mounting rotation. It is composed of a seedling stand (55) provided on the moving member (53) via a support member (54).
The spare seedling frame (50) has a boarding / alighting work position where the support member (54) faces the front side of the machine body and a planting work position where the support member (54) faces the outside of the machine body and the seedling mounting table (55) faces the inside of the machine body. The transplanter according to any one of claims 1 to 4, wherein the transplanter can be switched to and.