JP2005176648A - Vegetable transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vegetable transplanter which can efficiently transplant vegetable seedlings, even when a distance between right and left wheels are changed or when an operator is changed into another operator. <P>SOLUTION: This vegetable transplanter for laterally and circularly moving many endlessly connected seedling-carrying pots 148 and simultaneously transferring the seedlings carried with the seedling-carrying pots 148 into transplanting tines 151 at a delivering portion to plant the seedlings in a ridge is characterized by disposing seedling-loading and guiding chutes 175, 175 which are operated to repeatedly drop and supply the seedlings loaded thereon into the corresponding seedling-carrying pots 148 and whose direction and lateral position on the horizontal surface can be changed without deteriorating the operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vegetable transplanter equipped with a transplanting claw for transplanting a seedling into a basket.

Conventionally, in a process where a large number of seedling transport pots connected endlessly are wound around two elliptical left and right sprockets that rotate about a specific rotation center axis in the vertical direction and are continuously circulated. A vegetable transplanting machine in which seedlings transported by the seedling transport pot are transferred into transplanting claws at a transfer section and planted in a cocoon is known (see Patent Document 1).
In this kind of vegetable transplanter, the distance between the left and right wheels can be changed and adjusted so that the position of these wheels can be adapted to the heel width, and the operator holds the seedlings directly in each seedling transport pot. In addition to being supplied, there are some which have a large seedling supply place secured by moving a large number of seedling transport pots in an oval shape so that two persons can work.

JP-A-11-215903

  In the above-mentioned conventional vegetable transplanting machine, when supplying seedlings to the seedling transport pot, the worker must supply seedlings directly to each of the seedling transport pots. In order to solve this problem, the transplanter provided the seedling placement guide frame that supplied the seedlings to a plurality of seedling transport pots at once. Has already proposed.

  The present invention is intended to further improve the vegetable transplanter already proposed, that is, even when the distance between the left and right wheels is changed and adjusted or the worker is changed to another person, the transplantation is efficiently performed. An object of the present invention is to provide a vegetable transplanting machine that can do this.

  In order to achieve the above object, as described in claim 1, the first invention inherits the seedlings transported by the seedling transport pot while moving a large number of endlessly connected seedling transport pots in the horizontal direction. In the vegetable transplanting machine to be transferred to the transplanting claw at the part and planted in the cocoon, the plurality of seedlings placed on the upper surface are operated to be repeatedly dropped and supplied into the corresponding seedling transport pots. In addition, there is provided a seedling placement guide housing that can change and adjust the direction on the horizontal plane and the left-right position without impairing the operation.

  In addition, as described in claim 2, the second invention is characterized in that a large number of seedling transport pots connected endlessly are wound around a sprocket rotated around a specific rotation center in the vertical direction and continuously moved around. In the vegetable transplanting machine in which the seedling transported by the seedling transport pot is transferred to the transplanting claw at the transfer part and planted in the cocoon, a plurality of seedlings placed on the upper surface are dropped into the corresponding seedling transporting pots In addition, the seedling placement guide rod is provided so that the position on the horizontal plane can be changed and adjusted around the specific rotation center without damaging the operation.

  According to a third aspect of the present invention, as described in claim 3, a large number of seedling transport pots connected in an endless manner are formed into an ellipse in plan view on two left and right sprockets rotated about a specific vertical rotation center. In the vegetable transplanting machine to transfer the seedling transported by the seedling transport pot into the transplanting claw at the inheritance part and plant it on the cocoon while continuously moving around the wrapping, the plurality of seedlings placed on the upper surface are supported A plurality of seedling placement guide rods that operate so as to be repeatedly dropped and supplied into the seedling transport pots are provided corresponding to each of the sprockets, and the horizontal plane of each of the seedling placement guide rods The upper position is changed and adjusted around the specific rotation center of the corresponding sprocket without impairing the seedling supply operation of the seedling placement guide housing.

  The invention described in claim 2 or 3 is preferably embodied as follows, that is, as described in claim 4, the seedling placement guide rods are arranged in parallel in substantially the same direction. Each of which has a plurality of straight ridges on which seedlings are placed, and each of the straight ridges when the seedlings placed on the plurality of straight ridges fall into the seedling transport pot. The seedling outlet portions of the ridges are arranged in an arcuate row substantially along the outer peripheral edge of the corresponding sprocket.

According to the present invention described above, the following effects can be obtained.
That is, according to the first aspect, during the seedling planting operation, the operator repeatedly puts a plurality of seedlings on the upper surface of the seedling placement guide housing, but the seedling is described before the worker. The optimum position of the placement guide frame is usually different depending on the working conditions, and when the seedling placement guide frame is not in the optimum position at the time of operation, the horizontal position and the horizontal position of the seedling placement guide frame are By changing the position of the worker, the relative position of the worker at that time and the seedling placement guide rod can be brought close to the optimum state, so that the width of the heel changes or the worker changes to another person. Efficient porting work can be performed even if you do.

  According to the second aspect of the present invention, the same benefits as those of the first aspect of the invention can be effectively obtained without changing the moving path of the seedling transport pot that has existed conventionally, and By displacing the seedling placement guide rod about the specific rotation center of the sprocket, the direction and the left-right position of the seedling placement guide rod on the horizontal plane can be changed and adjusted.

  According to the third aspect of the present invention, the same effect as that of the second aspect of the invention can be obtained, and the following effect can be obtained, that is, the operator following the left and right sides of the aircraft. Each can supply seedlings to one of the corresponding seedling placement guide rods on the corresponding side, so that more efficient transplantation can be performed.

  According to the fourth aspect of the present invention, the relative position between the seedling placement guide rod and the seedling transport pot is always appropriate even if the orientation or the horizontal position of the seedling placement guide rod is changed on the horizontal plane. The seedling can be held in a state, and the seedling supply from the seedling placement guide rod to the seedling transport pot can be performed accurately.

An embodiment of a vegetable transplanter according to the present invention will be described with reference to FIGS.
FIG. 1 is a side view showing the overall configuration of a walking type vegetable transplanter according to an embodiment of the present invention, FIG. 2 is a plan view showing the overall configuration of the walking type vegetable transplanting machine, and FIG. FIG. 4 is a rear cross-sectional view of the succession part of the walking type vegetable transplanting machine, FIG. 5 is a plan view of the succession part, and FIG. 6 is a plan view of the vegetable transplanting machine. 7 is a plan view showing one operation state of the additional seedling supply unit of the vegetable transplanting machine, FIG. 8 is a plan view showing another operation state of the additional seedling supply unit of the vegetable transplanting machine, and FIG. 9 is the additional seedling. FIG. 10 is a side view of the left part of the additional seedling supply unit viewed from the right side, and FIG. 11 is a side view of the left part of the additional seedling supply unit viewed obliquely from the front. FIG. 12 is a side view showing a protrusion of a cylindrical member of the additional seedling supply part, FIG. 13 is a rear view of the transplant part, and FIG. 14 is a plan view of the transplant part. A.

First, the overall configuration will be described.
1 and 2, the vegetable transplanter places the engine 103 on the front part of the chassis, arranges the mission case 104 on the front and rear center part, and moves the handle frame 106 horizontally from the rear part of the chassis to the rear. The seedling supply unit 107 </ b> A and the additional seedling supply unit 107 </ b> B are arranged in the middle of the handle frame 106, and the rear part of the handle frame 106 is used as the operation operation unit 109.

  A pair of left and right front wheel support shafts 110, 110 are horizontally mounted on the front portion of the chassis, and one end of a front wheel support arm 111 is attached to both left and right ends of each front wheel support shaft 110. Front wheels 112 are supported at the ends. The distance between the left and right front wheels 112 can be changed and adjusted. Further, the rear wheel drive shaft 115 protrudes laterally from the transmission case 104, chain cases 116 and 116 are provided on both sides of the rear wheel drive shaft 115, and the rear wheels are disposed at the rear portions of the chain cases 116 and 116. 117 and 117 are supported. The distance between the left and right rear wheels 116 can also be changed and adjusted.

  And the transplant part 120 is arrange | positioned under the seedling supply part 107A in the rear part of the mission case 104, this transplant part 120 raises / lowers the transplant nail | claw 151, receives the seedling 126 from the seedling supply part 107A in the uppermost position, The transplanting claw 151 is opened at the lower end position, the seedling is dropped into the cage 125, and the soil is brought into the root portion of the seedling 126 and transplanted so as to cover the soil by the covering ring 122 arranged at the rear thereof.

Next, each part will be described.
First, the seedling supply unit 107A will be described with reference to FIG. 2, FIG. 3, FIG. 4, and FIG.
As shown in FIG. 2, a support frame 137 having a “U” shape in plan view is projected from the middle part of the left frame 106 </ b> L toward the horizontal side opposite to the center of the machine body. A seedling carrier stand 139 having a plate shape of an oval (long ring shape) is fixed substantially horizontally on the front and rear middle portions of the handle frame 106.

  As shown in FIG. 3, the drive sprocket 141 is connected to the left frame 106L, the middle frame 106M, and the right frame 106R on the connecting plate via the longitudinal drive shaft 101, and the driven sprocket 142 is located on the side of the left frame 106L. The pot mounting base 140 series is provided on a support frame 137 projecting in the direction of rotation and supported in a freely rotating manner via a longitudinal support shaft 102, and connected endlessly to the drive sprocket 141 and the driven sprocket 142. It has been turned. At this time, recessed portions 141a and 142a with which the pot mounting bases 140 are engaged are arranged on the peripheral surfaces of the drive sprocket 141 and the driven sprocket 142, and the recessed portions 141a or 142a of the respective sprockets 141 and 142 are arranged. Is 16 which is a multiple of “4”, which is the number of the straight flanges 177 described later. Each pot mounting base 140 holds a seedling transport pot 148 into which one unit of seedling is inserted. The rotation of the engine 103 is transmitted to the drive sprocket 141 from the transmission case 104 through a transmission mechanism such as a chain and the longitudinal drive shaft 101.

  Here, the pot mounting base 140 is a unit connection body that is connected to each other to form an oval shape. And the pot attachment base part 140 which is a unit connection body, and the seedling conveyance pot 148 comprise the seedling conveyance pot series 100 as a seedling conveyance means. The number of pot mounting bases 140 and seedling transport pots 148 is the same, and each is a multiple of “4”, which is the number of straight ridges 177 described later.

  In the illustrated example, the seedling transport pot series 100 has an oval shape. However, at least the straight part of the seedling transport pot series 100 only needs to be in the transfer section 150 where the transplanting claw 151 receives the seedling 126. Therefore, the seedling transport pot 100 series has a triangular shape. It is also possible to configure in a rectangular shape or a polygonal shape.

  The seedling transport pot series 100 will be described with reference to FIGS. 4 and 5. The pot mounting base 140 includes a fitting ring 158 that allows the seedling transport pot 148 to be detachable, a first connecting portion 143a and second extending portions 143b, 143b formed on both sides of the fitting ring 158. The fitting ring 158 is a cylindrical body that is open at the top and bottom. Moreover, the pot attachment base 140 which is a unit connection body is connected in an endless manner. The first connecting portion 143a and the second connecting portions 143b and 143b extending in the horizontal plane are projected from the outer peripheral surface of the fitting ring 158, and the second connecting portions 143b and 143b are respectively connected to the first extending portion. It is in a positional relationship located above and below the outlet 143a, and between the adjacent pot mounting bases 140, 140, the first connection portion 143a of one pot mounting base 140 and the second connection of the other pot mounting base 140 The parts 143b and 143b overlap in plan view. The first connecting portion 143a and the second connecting portions 143b and 143b are pivotally connected to each other by inserting a pivot pin 144 from above and the pot mounting base portions 140 and 140 are connected.

  Then, the drive sprocket 141 and the outer peripheral surface of the driven sprocket 142 are brought into contact with the side surfaces of the pot mounting base 140 in the middle of the upper and lower sides, and are rotated clockwise in a plan view and reversed at the drive sprocket 141. The seedlings are conveyed to the successor 150 side.

A rotation fulcrum of the shutter 145, that is, a shutter support portion 143c, is provided below a connection portion (the first connection portion 143a and the second connection portions 143b and 143b) between the pot mounting base portions 140 and 140.
The shutter 145 is a member formed by bending a plate-like member, and includes a flat surface portion 145a, a rotation support portion 145b formed on one side of the flat surface portion 145a, and a roller mounting portion formed on the other side. 145c.

  The rotation support part 145b is a part formed by bending the plate-like member in a reverse U shape in cross section on the front side in the transport direction of the shutter 145. A fulcrum pin 146 inserted into the rotation support portion 145b is fixed in a horizontal direction to a shutter support portion 143c protruding from a lower portion of the outer peripheral surface of the pot mounting base 140, and the shutter 145 is fixed to the pot mounting base 140. Lock up and down.

  The roller support part 145c is a part where the plate-like member is bent vertically downward with respect to the flat part 145a and parallel to the traveling direction on the left and right sides of the rear side of the shutter 145 in the conveyance direction. . A roller 147 is disposed on the roller support portion 145c, and the roller 147 is rotatably supported with respect to the shutter 145 via a support pin 149 in a horizontal direction perpendicular to the moving direction of the roller support portion 145c.

  A roller 147 provided on the shutter 145 rolls on the seedling carrier 139. The roller 147 is mounted for each pot mounting base 140, but the rollers 147 are arranged alternately on the left and right in the transport direction. At this time, in the seedling supply unit 107A, a large number of connected pot mounting bases 140 and 140 are an even number, and when each is numbered in turn, a pot mounting base 140 located at an odd number and a pot mounting base positioned at an even number In 140, rollers 147, 147,... Are arranged alternately on the left and right sides with respect to the transport direction. In other words, the odd-numbered (or even-numbered) rollers 147 are arranged on the inner circumferential side, and the even-numbered (or odd-numbered) rollers 147 are arranged on the outer circumferential side.

  The seedling carrier 139 serves as a rail on which the roller 147 rolls. In the path along which the roller 147 of the seedling carrier stand 139 rolls, openings (or notches) 139a and 139b are arranged in parallel on the front side of the seedling carrier stand 139 above the machine body with the left and right positions shifted. . At the openings 139a and 139b, there is no support for the roller 147, the shutter 145 rotates downward about the fulcrum pin 146, the lower part of the pot mounting base 140 is opened, and the seedling 126 falls to the transplant part 120. Like to do.

  Openings 139a and 139b are opened along the transport direction in the movement locus of the pot mounting base 140 on the front side of the oval seedling transport base 139 that is long in the left-right direction. The openings 139a and 139b are pot mounting bases. It is larger than the bottom area of 140 so that the seedling can be dropped, and it is opened at a position 3 pitches (or 5 pitches) apart from the connected pot mounting base 140 in the transport direction. Is adjusted to the width of the seedling planting. Then, one side of the roller 147 on the left and right side of the traveling direction is opened, and the other side of the roller 147 on the other side of the left and right side is opened so that the roller 147 is opened to the side. The seedlings are slightly expanded from the bottom surface of the mounting base 140 and the seedlings fall (the shutter 145 can be rotated downward), but the pot mounting bases 140 adjacent to each other before and after the direction of travel of the seedling transport pot series 100 are arranged. The attached roller 147 is prevented from falling.

  Then, the roller 147 on the seedling transport stand 139 rolls up gradually to a position where the roller 147 on the terminal side of the opening 139a, 139b in the traveling direction of the seedling transport pot series 100 that has fallen in the openings 139a, 139b passes. Slopes (inclined surfaces) 139c and 139c connected to the surface are provided. The slopes 139c and 139c are inclined forward and backward in the front and rear directions in the transport direction so that the shutter 145 is gradually closed as the roller 147 is not caught.

  The seedling supply unit 107A operates so that the seedling transport pot series 100 arranged in an oval shape passes through the rear of the machine body and reaches the inheriting unit 150 located above the transplanting unit 120. Then, at positions above the transplanting part 120, the rollers 147 and 147 separated by 3 pitches simultaneously fall into the openings 139a and 139b, and the shutters 145 and 145 are pivoted downward to open the seedlings in the seedling transport pot 10. Then, it is dropped into the transplanting claws 151 and 151 of the transplanting part 120. Thereafter, the rollers 147 and 147 come into contact with the slopes 139c and 139c and gradually rise to close the shutters 145 and 145. Therefore, seedlings are supplied to every transplanting claw 151 from every other pot mounting base 140 in the seedling transport pot series 100, that is, the odd pot mounting base 140 is on the left side of the left and right openings ( Or right side), even-numbered pot mounting base 140 has right-side (or left-side) opening with shutter 145 opened, and seedlings in seedling transport pot 148 are left and right by odd-numbered pot mounting base 140 and even-numbered pot mounting base 140. Simultaneously fall into the transplanted claws 151, 151 of the above-mentioned strips (1 and 2 or 3 and 4). As a result, two simultaneous strips can be planted, and the distance between the left and right strips is kept constant.

  In addition, a position adjustment unit for adjusting the engagement position with the seedling transport pot series 100 wound around itself is formed at the center of the drive sprocket 141. As shown in FIG. 3, the position adjusting unit includes a longitudinal drive shaft 101 concentric with the drive sprocket 141, a long hole 141d formed in the drive sprocket 141, and a longitudinal drive. The position of the drive sprocket 141 around the rotation center of the longitudinal drive shaft 101 is changed by fixing the bolt 163 screwed to the shaft 101 and changing the position of the bolt 163 in the elongated hole. ing.

Therefore, when the seedling is transferred from the pot mounting base 140 including the seedling transport pot 148 to the transplanting section 120 in the transfer section 150, the position adjustment adjusts the seedling transport in the seedling supply section 107A and the seedling in the transplanting section 120. Timing adjustment with conveyance can be aimed at. It should be noted that both the seedling supply unit 107A and the transplanting unit 120 obtain driving force from the mission case 104 and are driven in synchronism, so that timing adjustment is required when the timing is shifted. More specifically, the timing adjustment is an adjustment of the opening timing of the shutter 145 and the timing at which the transplanting claw 151 provided in the transplanting unit 120 reaches the uppermost position (seedling receiving position) of its movement trajectory.
Further, a position adjusting portion similar to the case of the drive sprocket 141 is also formed at the center of the driven sprocket 142.

Next, the additional seedling supply unit 107B will be described with reference to FIGS. 6, 7, 8, 9, 10, 11, and 12. FIG.
In FIGS. 6, 7, and 8, reference numeral 170 denotes a support plate bolted to the seedling carrier 139, and a support bar member 171 facing left and right is fixed to the support plate 170. At the left end of the support bar member 171, a base plate member 172 is changed in position around the longitudinal support shaft 102 and the concentric shaft 102 a of the driven sprocket 142 through a bolt b 01 and a long hole n 01 formed in the base plate member 172. The base plate member 172 is fixed to the right end of the support bar member 171 in a symmetrical manner with the left base plate member 172, and is formed in the bolt b01 and the base plate member 172. The position of the drive sprocket 141 is fixed so that the position of the drive sprocket 141 around the concentric shaft 101a can be adjusted via n01.

  As shown in FIGS. 9, 10, and 11, the left and right base plate members 172 each include a horizontal surface portion 172a and a hanging support portion 172b, and a pair of first upright pieces 173 on the upper surface of the horizontal surface portion 172a. 173, and a seedling placement guide rod body 175 is mounted on the upright pieces 173 and 173 via first horizontal fulcrum shafts 174 and 174 so as to be swingable up and down. The seedling placement guide rod body 175 includes a swing support plate 176 bent so as to form a middle-high portion, and four straight rod portions 177 fixed to the upper surface of the swing support plate 176 in parallel in a specific orientation. ing.

  At this time, the swing support plate 176 allows a pair of leg pieces 178 and 178 extending downward from the lower surface to swing freely about the shafts 174 and 714 via the left and right first horizontal fulcrum shafts 174 and 174. The four straight ridges 177 on the swinging support plate 176 are arranged in a circular arc shape so as to have a middle height, and the arrangement interval L01 is matched with that of each seedling transport pot 148, and each seedling is mounted. The placement guide housing 175 is a groove-like member, and has a pair of side wall portions s01 and s01 arranged in an inverted C shape, and a bottom wall portion s02 forming a flat surface.

  The seedling placement guide rod body 175 is interlocked and connected to the corresponding sprocket 141 or 142 via a cam mechanism 179. The left and right cam mechanisms 179 include an annular cam body 180 and a driven member 181. Yes.

  The annular cam body 180 includes a vertically-oriented cylindrical member 182 formed with projections a1 at a plurality of appropriately spaced positions in the circumferential direction of the upper edge portion (two positions at an interval of 180 degrees in the illustrated example). A support leg member 183 extending downwardly and continuously inward from a plurality of appropriately spaced locations on the inner circumferential surface of the cylindrical member 182; and below the support leg member 183 A horizontal plate member 184 fixed to the side end portion and formed with a plurality of arc-shaped elongated holes a2 along the circumferential direction of the cylindrical member 182 is provided.

  At this time, each projection a1 is provided with a vertical side a11, an upper side a12, and an inclined side a13 as shown in FIG. 12, and the horizontal plate member 184 has a corresponding sprocket 141 or 142. The bolts 163 that are in contact with the upper surface and are inserted into the arc-shaped elongated holes a2 are fixed so that the relative position can be changed and adjusted, and the center of the annular cam body 180 matches the rotation center of the corresponding sprocket 141 or 142. Is done.

  The driven member 181 includes a first link member 187 that can swing up and down via a left and right support shaft 186 that is fixed to the hanging support portion 172 b of the base plate member 172, and the length of the link member 187. The roller support shaft 188 is fixed in the middle, and the roller 189 is provided via the roller support shaft 188.

  One end portion of the second link member 190 is pivotally attached to the free end portion, which is the rear end portion of the first link member 187, via a pin member 191, and the other end portion of the second link member 190 is one of the above-described ones. A leg member 178 is pivotally attached via a pin member 192 to a lower end portion of an extended portion 178a obtained by extending the leg member 178 downward from the first horizontal fulcrum shaft 173. In the illustrated example, the second link member 190 is a single member, but preferably, the second link member 190 is separated into a first member and a second member, and these first and second members are screwed together to adjust the overall length. It can be changed.

  Between the swing support plate 176 and the base member 172, there is a spring 193 that biases the swing support plate 176 in the arrow direction f1 around the first horizontal fulcrum shaft 174, and the roller 189 is always a cylindrical member. While being brought into pressure contact with the upper edge of 182, floating of the seedling placement guide housing 175 and the cam mechanism 179 is suppressed.

  In such a structure, when the driving sprocket 141 and the driven sprocket 142 are rotated in the clockwise direction in plan view by the power of the engine 103, the annular cam bodies 180 on the left and right sides are the same as the driving sprocket 141 and the driven sprocket 142. Each time the four seedling transport pots 148 are fed and moved during the rotation, the rollers 190 in the left and right cam mechanisms 179 alternately alternate with one projection a1 of the corresponding annular cam body 180. The roller 189 is guided to the inclined side a13 under the state of being supported by the first link member 187 at the position of the projection a1, and is relatively slowly resisting the elasticity of the spring 193. Then, it is displaced upward, and then the height of the vertical side a11 is suddenly increased by the elasticity of the spring 193 at the position of the vertical side a11 of the projection a1. The vertical reciprocating motion is performed once, and the vertical reciprocating motion once swings the four straight heel portions 177 forming the seedling placement guide housing 175 once. Let Accordingly, when the drive sprocket 141 and the driven sprocket 142 make one rotation, 16 seedling transport pots 148 are moved forward, and during this movement period, the two right and left seedling placement guide housings 175 and 175 have four seedling transport pots. Each time 148 is moved, it is swung up and down once.

  When the left and right rollers 189 are at a position (basic position) other than the projection a1 on the upper edge of the corresponding cylindrical member 182, the four straight ridges of the corresponding seedling placement guide casing 175 are provided. As shown in FIG. 10, the portion 177 is positioned at a small inclination angle position indicated by reference numeral p1 with the inclination angle θ reduced, and the rollers 189 on the left and right sides of the protrusion a1 on the upper edge of the cylindrical member 182 When it is in the upper side a12 (the highest position), the four straight ridges 77 of the corresponding seedling placement guide rod 175 are positioned at a large inclination angle position indicated by reference sign p2 with the inclination angle θ increased. . The four straight ridges 177 on each of the left and right sides have the seedling 126 placed on the bottom wall portion a12 and stably support it when in the small inclination angle position p1, and are also in the large inclination angle position p2. Sometimes, the seedling 126 placed on the bottom wall portion a12 slides down from the lower opening a3.

  The large inclination angle position p2 and the small inclination angle position p1 have different optimum values depending on the type and state of the seedling 126 as well as the operation speed of each operation member, and these positions p1 and p2 are optimal for the state at that time. When the length of the second link member 190 can be changed so as to be able to be changed, by increasing the length, the inclination angle θ of the straight flange portion 177 at both angular positions is increased, Conversely, by reducing the length, the inclination angle θ of the straight flange 177 at both the angular positions p1 and p2 is reduced.

  When the four straight ridges 177 on the left and right sides are positioned at the large inclination angle position p2, four consecutive seedling transport pots 148 are positioned immediately below the four straight ridges 177. However, with respect to the relative positions of the straight ridges 177 and the seedling transport pot 148, the distance between the left and right front wheels 112 and 112 and the left and right rear wheels 117 and 117 is changed. The optimum state may differ depending on the change in type and state as well as the operating speed of each operating member. In order to optimize the relative position to the state at that time, the position of the base member 172 around the concentric shafts 101a and 102a is changed, or the driving sprocket 141 or the driven sprocket 142 and the corresponding annular cam body 180 are connected. The relative position in the rotational direction is changed and adjusted.

  In the vicinity of the seedling placement guide housing 175 on each of the left and right sides, a cover plate member 194 for opening and closing the lower end openings a3 of the four straight collar portions 177 of the respective seedling placement guide housings 175 is provided. The cover plate member 194 is provided so as to be swingable up and down via a second horizontal fulcrum shaft 196 supported by a pair of left and right upright pieces 195 and 195 provided on the upper surface of the corresponding base member 170. It consists of a plate member bent in a letter shape when viewed from the side, and the closed surface portions a4 and a5, which are the front portions of the plate member, are urged by a spring 197 to form four straight ridge portions of one seedling placement guide rod body 175. When the seedling placement guide housing 175 is swung up and down, the seedling placement guide housing 175 is pushed up and down in conjunction with it. When the seedling placement guide rod body 175 is moved and located at the small inclination angle position p1, the closed surface portions a4 and a5 are positioned at the position indicated by reference numeral p3 in FIG. a3 is closed, and conversely, the seedling placement guide frame 17 When is positioned in the large tilt angle position p2, it has been made as to open the lower end opening a3 of the straight trough 177 rear closure surface a4 its corresponding positioned at the position indicated by reference numeral p4 in FIG. Therefore, the seedling 126 placed on the bottom wall s02 of the straight ridge part 177 of each seedling placement guide housing 175 is when the seedling placement guide housing 175 is located at the small inclination angle position p1. The fall is regulated and stably supported by the cover plate member 194. On the other hand, the lower end opening a3 is not regulated by the cover plate member 194 when each seedling placement guide housing 175 is positioned at the large inclination angle position p2. It comes to fall smoothly from.

  Next, the transplanted part 120 will be described with reference to FIGS. 1, 2, 13, and 14. The transplanted part 120 is disposed behind the mission case 104, and is positioned symmetrically to the aircraft. And a pair of left and right transplanting claws 151 and 151 that are to be conveyed from the inheritance part 150 to the scissors 125, and rotary cases 152 and 152 that are respectively disposed on the left and right sides of the respective transplanting claws 151 to form a drive case. And the raising / lowering guides 153 and 153 which are arrange | positioned at the right-and-left other side of each transplant nail | claw 151 and make the guide part, The arm, link, etc. which connect these are comprised.

  At this time, the rotary cases 152 and 152 and the elevating guides 153 and 153 are fixed to the chassis, and the grafting claws 151 and 151 are disposed between the rotary cases 152 and 152. By rotating around 157, it is configured to move up and down following the elliptical trajectory in a side view below the transfer portion 150.

Next, a usage example of the above-described vegetable transplanter will be described.
After the seedling boxes containing the seedlings 126 are placed on the left and right seedling platforms 131, 131, the left front wheel 112 and the rear wheel 117 are placed in the left groove of one basket 125, and the right front wheel 112 and the rear wheel. 117 is positioned in the groove on the right side of the trough 125. Then, two workers 123a and 123b are positioned one by one in the left and right grooves on the rear side of the handle frame 106, and the seedlings 126 are placed in advance on each seedling platform.

  Thereafter, the engine 103 is started to put each part in an operating state. The rotation of the engine 103 is transmitted to the rear wheel 117 and at the same time is transmitted to the transplanting unit 120, and the airframe starts moving and starts planting operation. During the planting operation, as shown in FIG. 10, when the seedling placement guide frame 175 is at the small inclination angle position p1, the left and right workers 123a and 123b are manually operated on the corresponding side of each worker. The seedling 126 is placed on the bottom wall portion s02 of the straight collar portion 177 of the seedling placement guide rod body 175 so that the tip of the seedling 126 is located on the front side.

When the continuous seedling transport pot 148 to which the seedling 126 is not supplied is fed and moved and is present directly below the four straight ridges 177 of the left and right seedling placement guide casings 175, the cam mechanism 180 operates. As a result, the four straight ridges 177 of the seedling placement guide rod body 175 are swung from the state of FIG. 7 to the state of FIG. 8 to the large inclination angle position p2, and the lid plate member 194 is moved to this position. It swings downward around the second horizontal fulcrum shaft 196 in conjunction with the corresponding four straight flanges 177. Thus, when each seedling placement guide rod body 175 is positioned at the large inclination angle position p2, the lower end opening a3 of each straight rod body 177 is fully opened, and the four straight rod portions 177 are arranged in an arc shape. Therefore, the lowermost portion of each lower end opening a3 (the lower end portion of the bottom wall portion s02) is positioned at an appropriate height on the center side of the sprockets 141 and 142 from directly above the center of the upper surface opening of the corresponding seedling transport pot 148. It will be in the state. In this state, the seedling 126 on each of the four straight ridges 177 of each seedling placement guide rod 175 cannot maintain its own position and slides down quickly due to its own weight. In addition, since the lowermost portion of each lower end opening a3 (the lower end portion of the bottom wall portion s02) is located on the sprocket center side from directly above the center of the upper surface opening of the corresponding seedling transport pot 148, each straight shape The seedling falling from the buttocks falls toward the center position of the upper surface opening of one seedling transport pot 148 located immediately below it, and is accurately accommodated in the seedling transport pot. The cam mechanism 180 returns the four seedling placement guide rods 175 to the small inclination angle position p1 at the time as fast as possible after the housing, and the seedling placement guide rods on the left and right sides by the return. 175 is in the state of FIG. 7, and one seedling supply by each seedling placement guide housing 175 is completed.

  When the seedling 126 supply by the right and left seedling placement guide housings 175 is continuously performed, each successive seedling transport pot 148 has a predetermined number (usually 1) without the supply of the seedling 126 and the redundant supply. Book) seedlings 125 are supplied. As a result, the seedling 126 is supplied to all of the seedling transport pots 148 that reach the inheritance section 150, and the transplanting section 120 plants the seedling 126 in the cocoon 125 without any missing line. At the start of the planting operation, the seedling transport pot 148 in which the seedling 126 is not accommodated reaches the transfer section 150, but the seedling 126 is accommodated directly in the seedling transport pot 148 by hand. Like that.

  When carrying out the above planting work, the heel width may vary depending on the size. In this case, as described above, the left and right front wheels 112 and the left and right rear wheels 117 are changed so that the lateral distance is adapted to the heel width. If this change adjustment is performed, the positions of the seedling placement guide rods 157 on the left and right sides with respect to the rear wheels 117, 117, etc. will change, and the left and right sides of the rod 125 will be changed. The relative positions of the seedling placement guide rods 157 on the left and right sides with respect to the workers 123a and 123b who supply the seedling 126 while walking in the groove change, and the seedling placement guide rods 157 by the workers 123a and 123b change. The seedling 126 may not be supplied to the plant in an optimal state. Further, in addition to the change of worker, the position change of the seedling stage 131, and the change in the type and state of the seedling 126, the seedling 126 cannot be efficiently supplied by the worker to the seedling placement guide frame 157. Sometimes.

  In such a case, the position of the seedling placement guide frame 157 on the machine body is changed. Specifically, it is performed as follows, that is, corresponding to the seedling placement guide housing 157 on the side where the seedling 126 is difficult to be supplied (either on the left or right side or on both the left and right sides). The bolt b01 is operated to change and adjust the positions of the base member 172 around the concentric shafts 101a and 101b with respect to the support rod member 171.

  When the position of the seedling placement guide rod 157 is changed in this way, the relative position of the driven member 181 with respect to the annular cam body 180 changes. Therefore, when no action is taken, the seedling placement guide rod 157 is changed from the seedling placement guide rod 157 to the seedling. The timing of the seedling 126 supply to the transport pot 148 changes, and the seedling 126 supply to the seedling transport pot 148 by the left and right seedling placement guide housings 157 may not be appropriately performed. For example, a seedling 126 supply to a certain seedling transport pot 148 may not be performed, or a duplicate seedling 126 supply may be performed. In such a case, by operating the bolt 163, the position of the annular cam body 180 around the longitudinal drive shaft 101 relative to the drive sprocket 141 and the position around the longitudinal support shaft 102 of the annular cam body 180 relative to the driven sprocket 142 are determined. By changing and adjusting, the timing of the inclination displacement of the seedling placement guide housing 157 is advanced or delayed.

  As a result, the position of the seedling placement guide housing 157 is changed in the left-right direction on the machine body and the direction thereof is changed, and the straight saddle portion 177 of the seedling placement guide housing 157 by the operator is changed. The seedling 126 supply to the seedling is optimized, and the seedling 126 supply from the seedling placement guide housing 157 to each seedling transport pot 148 is performed without any trouble.

In the above-described embodiment, the seedling placement guide rod 157 and the cam mechanism 179 are provided on the left and right sides, but it may be provided only on one side.
In this case, the number of the protrusions a1 of the annular cam body 180 is provided at four positions at intervals of 90 degrees around the vertical drive shaft 101 or the vertical support shaft 102, whereby four seedling transport pots 148 are provided. The seedling 126 is continuously supplied.

It is the side view which showed the whole structure of the walk type vegetable transplanter which is an Example of this invention. It is the top view which showed the whole structure of the said walk type vegetable transplanter. It is a top view of the seedling supply part of the said walk type vegetable transplanter. It is a rear surface sectional view of the succession part of the walk type vegetable transplanter. It is a top view of the said inheritance part. It is a top view of the said vegetable transplanter. It is a top view which shows one operation state of the additional seedling supply part of the said vegetable transplanter. It is a top view which shows the other operating state of the additional seedling supply part of the said vegetable transplanter. It is the side view which looked at the left part of the said additional seedling supply part from the left. It is the side view which looked at the left part of the said additional seedling supply part from the right side. It is the figure which looked at the left part of the said additional seedling supply part from diagonally forward. It is a side view which shows the projection part of the cylindrical member of the said additional seedling supply part. It is a rear view of the transplant part. It is a top view of the said transplant part.

Explanation of symbols

101 Vertical drive shaft (specific rotation center)
102 Vertical support shaft (specific rotation center)
126 Seedling 141 Drive sprocket 142 Driven sprocket 148 Seedling transport pot 150 Successive part 151 Transplanting claw 175 Seedling placement guide frame 177 Straight heel part a3 Lower end opening (seedlet outlet location)

Claims (4)

  In the vegetable transplanting machine, the seedlings transported by the seedling transport pot are transferred to the transplanting claws at the inheritance part and are planted in the cocoon while moving a large number of endlessly connected seedling transporting pots horizontally. The seedlings which are operated so as to repeatedly drop and supply a plurality of seedlings into the corresponding seedling transport pots and change and adjust the direction on the horizontal plane and the left and right positions without impairing the operation. A vegetable transplanting machine provided with a mounting guide housing.   A number of seedling transport pots connected endlessly are wound around a sprocket that is rotated around a specific center of rotation in the vertical direction and continuously moved around, while the seedlings transported by the seedling transport pot are transferred into the transplantation claw at the transfer section. In the vegetable transplanting machine to be transferred to 畝 and planted in the cocoon, the plurality of seedlings placed on the upper surface are operated so as to be repeatedly dropped and supplied into the corresponding plurality of seedling transport pots, and the operation is impaired. A vegetable transplanting machine provided with a seedling placement guide rod that is capable of changing and adjusting a position on a horizontal plane around the specific rotation center without any change.   A number of seedling transport pots connected endlessly are wound around two sprockets that rotate about a specific rotation center in the vertical direction in an elliptical shape in plan view, and are continuously moved around. In the vegetable transplanting machine in which the seedlings to be transferred are transferred into the transplanting claws at the inheritance part and planted in the basket, the plurality of seedlings placed on the upper surface are dropped into the corresponding seedling transporting pots and supplied. A seedling placement guide housing that operates so as to be repeated is provided in correspondence with each of the sprockets, and a position on the horizontal plane of each of the seedling placement guide housings is set as a seedling supply operation of the seedling placement guide housing. A vegetable transplanter characterized in that it is configured to be changed and adjusted around the specific rotation center of the corresponding sprocket without damaging it.   The seedling placement guide rods are provided with a plurality of straight ridges arranged in parallel in substantially the same direction, and the seedlings placed on the plurality of straight ridges are arranged on the plurality of straight ridges, respectively. The seedling outlet portions of the respective straight ridges when falling into the seedling transport pot are arranged in an arc-shaped row substantially along the outer peripheral edge of the corresponding sprocket. The vegetable transplanter according to claim 2 or 3.

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