Transplantation machine

Abstract

To solve such a problem that a conventional transplanter does not necessarily have the sufficient durability of a mechanism for intermittently moving a planting tool up and down.SOLUTION: A transplanter comprises: a planting tool moving-up / down clutch 200 which controls transmission of the driving force for intermittently moving a planting tool 131 up and down; a rotation arm 300 which turns on / off the planting tool moving-up / down clutch 200; a slide plate 400 which can regulate the movement of the rotation arm 300; a solenoid device 500 which intermittently slides the slide plate 400; and a stay member 600 which has a wall part 601 which the slide plate 400 penetrates. The slide plate 400 and a solenoid plunger 510 of the solenoid device 500 are connected by using a connection pin 420 and a connection pin insertion hole 401. The connection pin insertion hole 401 has play of the connection pin 420 in the direction orthogonal to the slide direction of the slide plate 400.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a transplanter, such as a vegetable seedling transplanter. [Background technology]

[0002] 2. Description of the Related Art Transplanters such as vegetable seedling transplanters having a planting tool lifting clutch that controls the transmission of driving force for intermittently lifting and lowering the planting tool are known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6319206 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the present inventors believe that it is important to improve the durability of the mechanism for intermittently raising and lowering the planting tool.

[0005] However, in transplanters such as the above-mentioned conventional vegetable seedling transplanter, the durability of the mechanism for intermittently raising and lowering the planting tool is not necessarily sufficient.

[0006] SUMMARY OF THE PRESENT EMBODIMENT In consideration of the above-mentioned problems in the conventional art, the present invention has an object to provide a transplanter capable of improving the durability of a mechanism for intermittently raising and lowering a planting tool. [Means for solving the problem]

[0007] The first aspect of the present invention is a planting tool lifting clutch (200) that controls the transmission of a driving force for intermittently lifting and lowering the planting tool (131); A pivot arm (300) that turns on and off the planting tool lifting clutch (200); a slide plate (400) capable of restricting the movement of the pivot arm (300); a solenoid device (500) for intermittently sliding the slide plate (400); a stay member (600) having a wall portion (601) through which the slide plate (400) penetrates; Equipped with The slide plate (400) and the solenoid plunger (510) of the solenoid device (500) are connected to each other by using a connecting pin (420) and a connecting pin insertion hole (401), The transplanter is characterized in that the connecting pin insertion hole (401) has a play for the connecting pin (420) in a direction perpendicular to the sliding direction of the slide plate (400).

[0008] In the second aspect of the present invention, the slide plate (400) is provided with a slide pin insertion slit (402) into which a slide pin (430) provided on the vehicle body (101) is inserted, The slide pin insertion slit (402) is located on the opposite side of the solenoid device (500) with respect to the stay member (600), In the first transplanter of the present invention, when the slide plate (400) is in the rotation arm movement restricting position, the slide pin (430) has some play in the slide pin insertion slit (402).

[0009] The third invention is the transplanter of the second invention, characterized in that the width of play of the slide pin (430) when the slide plate (400) is in the pivot arm movement restricting position is larger than the width of play of the slide pin (430) when the slide plate (400) is in the pivot arm movement non-restricting position.

[0010] In the fourth aspect of the present invention, the slide plate (400) is provided with a slide plate notch (403) into which the pivot arm (300) is inserted, The slide plate notch (403) is formed from one side edge of the slide plate (400), In the first transplanter of the present invention, the other side edge of the slide plate (400) is bulged at the position of the slide plate notch (403).

[0011] The fifth aspect of the present invention is a box-shaped member (700) for determining the mounting position of the solenoid device (500), the box-shaped member (700) is fitted between the wall portion (601) of the stay member (600) and a wall surface (521) of a solenoid device main body (520) of the solenoid device (500) facing the wall portion (601), The first transplanter of the present invention is characterized in that the slide plate (400) and the solenoid plunger (510) penetrate through the box-shaped member (700).

[0012] In the sixth aspect of the present invention, the slide plate (400) has a flange portion (404), The flange portion (404) is located on the side of the solenoid device (500) with respect to the stay member (600), a slide plate biasing spring (410) that biases the slide plate (400) so that the slide plate (400) restricts the movement of the pivot arm (300) is fitted between the flange portion (404) and the wall surface (521) of the solenoid device main body portion (520); This is a fifth transplanter of the present invention, characterized in that the box-shaped member (700) is provided with a slide plate spring insertion hole (701) into which the end of the slide plate spring (410) that abuts against the wall surface (521) is inserted.

[0013] The seventh aspect of the present invention is the transplanter according to the fifth aspect of the present invention, characterized in that the box-shaped member (700) has one or more removable shim plates (710) for adjusting the mounting position of the solenoid device (500). Effect of the Invention

[0014] According to the first aspect of the present invention, it is possible to improve the durability of the mechanism for intermittently raising and lowering the planting tool (131).

[0015] According to the second invention, in addition to the effect of the first invention, it is possible to improve the accuracy of intermittently raising and lowering the planting tool (131).

[0016] According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, it is possible to further improve the durability of the mechanism for intermittently raising and lowering the planting tool (131).

[0017] According to the fourth aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to further improve the durability of the mechanism for intermittently raising and lowering the planting tool (131).

[0018] According to the fifth aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to improve the accuracy of determining the mounting position of the solenoid device (500).

[0019] According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, it is possible to improve the accuracy of intermittently raising and lowering the planting tool (131).

[0020] According to the seventh aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, it is possible to improve the accuracy of intermittently raising and lowering the planting tool (131). [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a left side view of a transplanter according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a partial right side view of the vicinity of the planting tool lifting clutch and the pivot arm return cam mechanism of the transplanter according to the embodiment of the present invention. [Diagram 3] FIG. 1 is a partial perspective view of the slide plate and the solenoid device of a transplanter according to an embodiment of the present invention; [Figure 4] FIG. 2 is a partial rear view of the slide plate and the solenoid device of the transplanter according to the embodiment of the present invention; [Diagram 5] FIG. 1 is a partially enlarged rear view of the vicinity of a connecting pin insertion hole of a transplanter according to an embodiment of the present invention; [Figure 6] FIG. 1 is a partial perspective view of the vicinity of a box-shaped member of a transplanter according to an embodiment of the present invention; [Figure 7] FIG. 2 is a partial perspective view of the box-shaped member and its surroundings of the transplanter according to the embodiment of the present invention; [Figure 8] FIG. 13 is a partial perspective view of the vicinity of a slide plate biasing spring of a transplanter according to a modified embodiment of the present invention; [Figure 9] FIG. 2 is a partial perspective view of the shim plate and its surroundings of the transplanter according to the embodiment of the present invention; [Figure 10] FIG. 2 is a partial perspective view of a shim plate of a transplanter according to an embodiment of the present invention; [Figure 11] FIG. 1 is a partial perspective view of the vicinity of a rotating arm and a slide plate of a transplanter according to an embodiment of the present invention; [Figure 12] FIG. 1 is a partial perspective view of the vicinity of the irrigation hose of a transplanter according to a modified embodiment of the present invention; [Figure 13] FIG. 2 is a partial perspective view of the vicinity of the irrigation hose of a transplanter according to a modified embodiment of the present invention (part 2); [Figure 14] FIG. 3 is a partial perspective view of the vicinity of the irrigation hose of a transplanter according to a modified embodiment of the present invention (part 3) [Figure 15] FIG. 13 is a partial perspective view of the vicinity of the irrigation pump cylinder of a transplanter according to a modified embodiment of the present invention. [Figure 16] FIG. 1 is a partial perspective view of the vicinity of a recessed irrigation valve of a transplanter according to a modified embodiment of the present invention; [Figure 17] FIG. 2 is a partial perspective view of the vicinity of a recessed irrigation valve of a transplanter according to a modified embodiment of the present invention (part 2); [Figure 18] FIG. 3 is a partial perspective view of the vicinity of a recessed irrigation valve of a transplanter according to a modified embodiment of the present invention (part 3); [Figure 19]FIG. 13 is a partial perspective view of the vicinity of an irrigation hose joint part of a transplanter according to a modified embodiment of the present invention; [Figure 20] FIG. 1A is a partial perspective view (part 1) of the vicinity of a watering spool member of a transplanter according to a modified embodiment of the present invention; FIG. 1B is a partial perspective view (part 2) of the vicinity of a watering spool member of a transplanter according to a modified embodiment of the present invention; [Figure 21] FIG. 1 is a partial perspective view of the vicinity of the handle of a transplanter according to a modified embodiment of the present invention; [Figure 22] FIG. 2 is a partial perspective view of the vicinity of the handle of a transplanter according to a modified embodiment of the present invention (part 2); [Figure 23] FIG. 3 is a partial perspective view of the vicinity of the handle of a transplanter according to a modified embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the drawings, an embodiment of the present invention will be described in detail.

[0023] The same applies below, but some components may not be shown in the drawings, or may be shown in a perspective or simplified manner.

[0024] (A) First, the configuration and operation of the transplanter of the present embodiment will be specifically described with reference to FIGS.

[0025] Here, Figure 1 is a left side view of a transplanter of an embodiment of the present invention, Figure 2 is a partial right side view of the vicinity of the planting tool lifting clutch 200 and the pivot arm return cam mechanism 800 of the transplanter of an embodiment of the present invention, Figure 3 is a partial oblique view of the vicinity of the slide plate 400 and solenoid device 500 of the transplanter of an embodiment of the present invention, and Figure 4 is a partial rear view of the vicinity of the slide plate 400 and solenoid device 500 of the transplanter of an embodiment of the present invention.

[0026] While explaining the operation of the transplanter of this embodiment, a transplanter operation control method of an invention related to the present invention, which is realized by a controller, etc., will also be explained.

[0027] The transplanter of this embodiment is a transplanter such as a vegetable seedling transplanter, which uses the driving force transmitted from an engine 110 to travel on a traveling device 120 having a pair of left and right driven front wheels 121 and driven rear wheels 122, and plants transplants using a planting device 130 having a planting tool 131.

[0028] The planting tool lifting clutch 200 is a clutch that controls the transmission of driving force for intermittently lifting and lowering the planting tool 131. The rotating arm 300 is an arm that turns the planting tool lifting clutch 200 on and off. The slide plate 400 is a plate that can regulate the movement of the rotating arm 300. The solenoid device 500 is a device that intermittently slides the slide plate 400. The stay member 600 is a member that has a wall portion 601 through which the slide plate 400 passes.

[0029] The rotating arm biasing spring 310 biases the rotating arm 300 so that the rotating arm 300 moves to the driving force transmission ON position.

[0030] The slide plate 400 and other components serving as a regulating plate are supported by a stay member 600, and the rotating arm 300 functions as a so-called regulating arm. The rotating arm biasing spring 310 functions as a rotating arm return spring that moves the rotating arm 300 to the drive force transmission ON position, so that the rotating arm 300 is normally in contact with the slide plate 400 by being biased toward the slide plate 400 by the biasing force of the rotating arm biasing spring 310, but when the slide plate 400 is moved by the solenoid device 500, it enters the slide plate notch 403, which is a passage groove.

[0031] The rotating arm return cam mechanism 800 is a mechanism that intermittently moves the rotating arm 300 by cam abutment against the biasing force of the rotating arm biasing spring 310 so that the rotating arm 300 returns from the drive force transmission ON position to the drive force transmission OFF position.

[0032] The slide plate 400, which functions as a slider stopper for the spacing control unit, is not a magnetic member, but a non-magnetic member such as a SUS member (stainless steel material) that is not magnetized when the solenoid is activated. Since loss of solenoid attraction force is unlikely to occur and a large drop in solenoid attraction load is not caused, solenoid attraction is hardly hindered at all, and as a result, the planting tool lifting clutch 200 can be turned on at the set timing, realizing stable spacing control.

[0033] (B) Next, the configuration and operation of the transplanter of this embodiment will be described in more detail.

[0034] The slide plate 400 and the solenoid plunger 510 of the solenoid device 500 are connected by utilizing a connecting pin 420 and a connecting pin insertion hole 401 .

[0035] A connecting pin insertion hole 401 which is a hole in the connection between the solenoid plunger 510, which is a solenoid sliding member, and the slide plate 400 is not a round hole into which a round connecting roll pin is inserted, but an elongated hole.

[0036] As shown in FIG. 5, in the connecting pin insertion hole 401, there is a play for the connecting pin 420 in a direction perpendicular to the sliding direction of the slide plate 400.

[0037] FIG. 5 is a partially enlarged rear view of the vicinity of the connecting pin insertion hole 401 of the transplanter according to the embodiment of the present invention.

[0038] The connecting pin insertion hole 401 is formed as a hole on the slide plate 400 side, but may be formed as a hole on the solenoid plunger 510 side. When such holes are formed on both sides, it is sufficient that the connecting pin 420 has play in the hole on at least one side.

[0039] Height changes in the solenoid device 500 due to dimensional variations in the component height direction are absorbed, and even if the slide plate 400 is tilted diagonally, there is almost no interference with the stay member 600. Since loss of solenoid suction force is unlikely to occur and solenoid suction is almost completely unimpeded, stable stock spacing control is achieved.

[0040] As shown in FIG. 4, the slide plate 400 is provided with a slide pin insertion slit 402 into which a slide pin 430 provided on the vehicle body 101 side is inserted.

[0041] The slide pin insertion slit 402 is located on the opposite side of the stay member 600 from the solenoid device 500 .

[0042] When the slide plate 400 is in the rotation arm movement restricting position, the slide pin 430 has play in the slide pin insertion slit 402 .

[0043] The width of play of the slide pin 430 when the slide plate 400 is in the position where the pivot arm movement is not restricted may be zero.

[0044] As shown in FIG. 4, the range of play of the slide pin 430 when the slide plate 400 is in the pivot arm movement restricting position is larger than the range of play of the slide pin 430 when the slide plate 400 is in the pivot arm movement non-restricting position.

[0045] The width of the slide pin insertion slit 402, which is an insertion hole for the slide pin 430 that functions as a regulating bolt for the slide plate 400, is larger when the slide plate 400 is in the standby position before the solenoid is attracted, and is smaller when the slide plate 400 is in the operating position after the solenoid is attracted. The slide pin insertion slit 402 is not a uniform long hole but a so-called oblique long hole, so that the vertical dimensional variation in the standby position is absorbed and the accuracy of the slider stopper operation positioning is improved, thereby realizing stable plant spacing control.

[0046] In addition, when solenoid device 500 is activated by energization and solenoid plunger 510 is attracted, or when energization to solenoid device 500 is stopped and solenoid plunger 510 is returned to the standby position, i.e., the position before energization, a small space is created between slide pin 430 and slide pin insertion slit 402, so that slide pin insertion slit 402 is prevented from wearing down and deforming due to contact with slide pin 430.

[0047] As shown in FIG. 3, the slide plate 400 is provided with a slide plate notch 403 into which the pivot arm 300 fits.

[0048] Slide plate notch 403 is formed from one side edge of slide plate 400 .

[0049] The other side edge of the slide plate 400 is bulged at the location of the slide plate notch 403 .

[0050] Since the upper shape of slide plate notch 403, which is a slider stopper escape notch, is made thicker to improve strength, the slide plate 400 comes into contact with the slide pin 430 and stops due to solenoid attraction, but deformation of the slide plate 400 caused by the repeated application of impact loads is suppressed.

[0051] A thread groove is formed in the tail of the slide pin 430 for screwing in the pin mounting double nut, but no thread groove is formed in the base of the slide pin 430 near the head of the pin. Since no thread groove is formed in the base of the pin, which is the plate abutment portion of the slide plate 400, a sufficiently large plate abutment portion is secured. No crushing or scraping of the screw thread portion due to the repeated application of impact loads occurs, and the pivot arm movement restriction position and the pivot arm movement non-restriction position of the slide plate 400 do not shift, realizing stable plant spacing control.

[0052] As shown in FIGS. 6 and 7, the box-shaped member 700 is a member that determines the mounting position of the solenoid device 500.

[0053] 6 and 7 are partial perspective views (parts 1 and 2) of the vicinity of a box-shaped member 700 of a transplanter according to an embodiment of the present invention.

[0054] The box-shaped member 700 is fitted between the wall portion 601 of the stay member 600 and a wall surface 521 of the solenoid device main body 520 of the solenoid device 500 , the wall surface 521 facing the wall portion 601 .

[0055] The slide plate 400 and the solenoid plunger 510 pass through the box-shaped member 700 .

[0056] The box-shaped member 700, which is a U-shaped plate, functions as a solenoid base and is disposed between the stay member 600 and the solenoid device 500. When the solenoid device 500 is assembled to the stay member 600, regular right-angle assembly in which the solenoid fixing angle almost exactly coincides with 90 degrees is easily achieved, and solenoid assembly defects almost never occur.

[0057] The shape of the end of the box-shaped member 700 located on the side of the stay member 600 is a so-called curved shape, and by pressing it against the solenoid device main body 520, the solenoid device 500 can be assembled while checking the base lateral dimension relative to the stay member 600, thereby improving convenience.

[0058] The slide plate 400 has a flange portion 404 .

[0059] The flange portion 404 is on the side of the solenoid device 500 with respect to the stay member 600 .

[0060] A slide plate biasing spring 410 that biases the slide plate 400 so that the slide plate 400 restricts the movement of the rotating arm 300 is fitted between the flange portion 404 and a wall surface 521 of the solenoid device main body portion 520 .

[0061] As shown in FIGS. 6 and 7, the box-shaped member 700 is provided with a slide plate biasing spring insertion hole 701 into which the end of the slide plate biasing spring 410 that abuts against the wall surface 521 is inserted.

[0062] A slide plate bias spring insertion hole 701 is provided in the wall of the box-shaped member 700 corresponding to the center of the wall surface 521 of the solenoid device main body 520, with a hole diameter dimension that almost matches the outer diameter dimension of the spring end, so that the spring end of the slide plate bias spring 410 functioning as a solenoid plunger return spring fits almost snugly. Since the position of the slide plate bias spring 410 is accurately determined, almost no contact interference occurs between the slide plate bias spring 410 and the solenoid plunger 510, and solenoid operation is stable.

[0063] 8, which is a partial perspective view of the vicinity of slide plate biasing spring 410 of a transplanter according to a modified embodiment of the present invention, slide plate biasing spring 410 may be a conical spring, which does not require the formation of slide plate biasing spring insertion hole 701. The outer diameter of the spring on the solenoid device 500 side is approximately equal to the inner diameter of the solenoid cover, and the position of slide plate biasing spring 410 is accurately determined by the solenoid cover, which promotes simplification of the configuration.

[0064] As shown in FIGS. 9 and 10, the box-shaped member 700 has one or more removable shim plates 710 for adjusting the mounting position of the solenoid device 500 .

[0065] 9 is a partial perspective view of the vicinity of a shim plate 710 of a transplanter according to an embodiment of the present invention, and FIG. 10 is a partial perspective view of the shim plate 710 of a transplanter according to an embodiment of the present invention.

[0066] The number of shim plates 710 for easily adjusting the degree of bottoming of the solenoid plunger inserted between the wall portion 601 of the stay member 600 and the box-shaped member 700 may be multiple, taking into consideration the solenoid shape, etc. The shim plates 710 may be inserted, for example, between the wall surface 521 of the solenoid device main body 520 and the box-shaped member 700.

[0067] In addition, there may be a situation where the provision of the shim plate 710 would result in the solenoid plunger bottoming out inappropriately due to slight assembly tolerances, wear and tear from continuous use, etc. In this case, a configuration in which no shim plate 710 is provided may be possible.

[0068] As shown in Fig. 11, which is a partial perspective view of the vicinity of the rotating arm 300 and the slide plate 400 of the transplanter according to the embodiment of the present invention, the shape of the arm tip of the rotating arm 300 that comes into contact with the slide plate 400 is a so-called R shape with a small contact area so that damage caused by contact interference between the rotating arm 300 and the slide plate 400 is reduced by line contact or the like. The shape of the plate tip of the slide plate 400 that comes into contact with the rotating arm 300 may also be a so-called R shape. Since the sliding resistance between the rotating arm 300 and the slide plate 400 is reduced, stable plant spacing control is achieved.

[0069] (C) Next, the configuration and operation of the transplanter of this embodiment will be described in more detail.

[0070] An embodiment as shown in FIG. 12, which is a partial perspective view (part 1) of the vicinity of an irrigation hose 1100 of a transplanter according to a modified embodiment of the present invention, is conceivable.

[0071] The joint 1110 is inserted into the mesh filter 1120 at the tip of the irrigation hose 1100, and is fixed with a wire band 1121. If the mesh filter 1120 is fixed with a clamp such as a crescent clamp via an insulating tube or the like, the mesh filter 1120 will penetrate the insulator and come into contact with the clamp due to deterioration over time, which can easily cause rust, but in this embodiment, rust is less likely to occur.

[0072] An embodiment as shown in FIG. 13, which is a partial perspective view (part 2) of the vicinity of an irrigation hose 1100 of a transplanter according to a modified embodiment of the present invention, is conceivable.

[0073] Mesh filter 1120 at the tip of irrigation hose 1100 is fixed by torsion spring 1122. In this embodiment, rust is less likely to occur and the fixing force is stable.

[0074] An embodiment as shown in FIG. 14, which is a partial perspective view (part 3) of the vicinity of an irrigation hose 1100 of a transplanter according to a modified embodiment of the present invention, is conceivable.

[0075] A stainless steel spring 1123 is built into the inside of mesh filter 1120 at the tip of irrigation hose 1100. When an external load (such as being stepped on) is applied to the filter portion of mesh filter 1120, it is prone to breakage, but in this embodiment, breakage such as breakage of the filter portion caused by being stepped on is unlikely to occur.

[0076] An embodiment as shown in FIG. 15, which is a partial perspective view of the vicinity of an irrigation pump cylinder 1200 of a transplanter according to a modified embodiment of the present invention, is conceivable.

[0077] In the irrigation pump cylinder 1200, the cylinder rotation fulcrum shaft portion 1210 and the pump cylinder portion 1220 are integrated together. If the shaft portion made of SUS material and the cylinder portion made of resin material were separate parts, parts for connecting and fixing would be required. However, in this embodiment, not only is cost reduced, but assembly is also made easier.

[0078] 15, the portion of the cylinder rotation fulcrum shaft portion 1210 located on the outer surface of the rotation mounting stay 1230 is used as the mounting portion for the irrigation hose 1100. This allows the irrigation pump cylinder 1200 to be rotatably mounted, while also facilitating the attachment and detachment of the irrigation hose 1100.

[0079] An embodiment as shown in Figs. 16 to 18, which are partial perspective views (parts 1 to 3) of the vicinity of a recessed irrigation valve 2100 of a transplanter according to a modified embodiment of the present invention, is conceivable.

[0080] A plate member 2110 is used to insert a fork-shaped plate portion into the edge of the discharge side fitting portion of the fitting-in type irrigation valve 2100. The fitting portion is prone to deformation and leakage when a large flow rate occurs under high pressure, but in this embodiment, deformation of the fitting portion is suppressed, and water can flow through the fitting-in type irrigation valve 2100 even at high pressure.

[0081] By arranging holes for forming through holes at different positions in the fitting plate of the plate member 2110 side by side and fitting them from the front and back, it is possible to pass the pin 2120 through the through hole. By attaching the fitting plate from both sides, the holding force is improved. In addition, passing the pin 2120 prevents it from coming off, and since the fitting plates on the front and back are the same part, there is no chance of misassembly.

[0082] A fin-shaped fin portion 2111 that extends to the outside of the recessed type irrigation valve 2100 is provided on the plate member 2110, and mounting holes 2112 are provided. By fixing the plate member 2110 with screws and pins inserted into the mounting holes 2112, the irrigation valve set to which the recessed plate is attached can be fixed to the side of the vehicle body 101.

[0083] An embodiment as shown in FIG. 19, which is a partial perspective view of the vicinity of an irrigation hose joint part 3110 of a transplanter according to a modified embodiment of the present invention, is conceivable.

[0084] A configuration is adopted in which an L-shaped irrigation hose joint part 3110 is passed through a plate 3120 with a hole, and fixed from the other side with a hose 3121 and a clip 3122 to form the discharge port of the irrigation device. When a screw-equipped nozzle is fixed to a plate with a nut, it is prone to loosening and falling off due to vibration, etc., but in this embodiment, the irrigation hose joint part 3110, which is a simple commercially available L-shaped nozzle part, can be fixed to the plate 3120, so that a stopper that is unlikely to loosen due to vibration, etc. can be achieved without a screw part. In addition, by extending the length of the stopper hose, dripping during discharge can be easily extended to the inside of the hopper.

[0085] A configuration is adopted in which irrigation hose joint part 3110 is fixed to fixing plate 3131 with a cable tie 3132. Not only can fixing be achieved without the use of tools, but irrigation hose joint part 3110 can be easily attached and detached.

[0086] An embodiment as shown in Figs. 20(a) and 20(b) which are partial perspective views (parts 1 and 2) of the vicinity of the watering spool member 4100 of a transplanter according to a modified embodiment of the present invention is conceivable.

[0087] A block having two connection ports Rc for the nozzle and the valve, and an irrigation spool member 4100 to which a hose communicating with the hollow hole 4110 can be connected are disposed midway along the irrigation flow path, and a configuration is adopted in which the flow path can be switched by pushing and pulling the spool in response to a pushing action to stop water on the nozzle side and a pulling action to stop water on the opposite nozzle side. The flow path can be switched with a single touch, and not only can water be stopped easily when irrigation is not desired, but the switching can also be easily understood visually from the outside. When stopping water, water from the pump returns to the tank and the water intake valve and circulates, so fatigue of the piston, which operates constantly, is unlikely to occur.

[0088] A retaining chamfer 4120 is provided on the irrigation spool member 4100 for switching the irrigation flow path, and a retaining member 4130 such as a set screw is disposed near the edge of the block. Because the spool retaining function is realized with such a simple configuration, an indicator label for switching is not required.

[0089] An embodiment as shown in Figs. 21 to 23, which are partial perspective views (parts 1 to 3) of the vicinity of a handle 5100 of an implanter according to a modified embodiment of the present invention, is conceivable.

[0090] In the fully automatic vegetable transplanter, the descent stopper lever 5110 is disposed on the left side of the handle 5100 and below the planting depth adjustment lever. When the maximum body lift in which the descent stopper acts is performed, the body 101 tilts slightly forward, realizing a position where the descent stopper lever 5110 is easy to see and operate. When the cable screw cap is adjusted, the tool can be easily inserted.

[0091] The descent stopper lever 5110 has a hole diameter with a sufficient clearance for the fulcrum pin 5111 that serves as the lever rotation axis, and is fixed via a spring 5112. Even if the descent stopper lever 5110 is short, the descent stopper lever 5110 can be moved in the left-right direction by twisting it from the fulcrum, so the lever fixing part moves easily in the left-right direction. The lever almost never comes off due to the restoring force of the spring 5112.

[0092] The release side end of the lever slit 5121 provided in the fixed plate portion 5120 of the descent stopper lever 5110 has a so-called R-shape. When the lever is lifted for operation from the release side to the fixed side, the descent stopper lever 5110 acts along the R-shaped side surface of the slit to avoid the lock portion, making it easy to fix the lever. [Industrial Applicability]

[0093] The transplanter of the present invention can improve the durability of the mechanism for intermittently raising and lowering the planting tool, and is useful for use in transplanters such as vegetable seedling transplanters. [Explanation of symbols]

[0094] 101 Body 110 Engine 120 Running gear 121 Driven front wheel 122 Drive rear wheels 130 Planting device 131 Planting Tools 200 Planting tool lifting clutch 300 Rotating Arm 310 Rotating arm bias spring 400 Slide Plate 401 Connecting pin insertion hole 402 Slide pin insertion slit 403 Slide plate notch 404 Flange part 410 Slide plate energizing spring 420 Connecting pin 430 Slide pin 500 Solenoid Device 510 Solenoid Plunger 520 Solenoid device main body 521 Wall 600 Stay member 601 Wall section 700 Box-shaped components 701 Slide plate spring insertion hole 710 Shim plate 800 Rotating arm return cam mechanism 1100 Irrigation hose 1110 Joint 1120 Mesh Filter 1121 Wire Band 1122 Torsion Spring 1123 Spring 1200 Irrigation Pump Cylinder 1210 Cylinder rotation fulcrum shaft 1220 Pump cylinder part 2100 Recessed irrigation valve 2110 Plate member 2111 Fin section 2112 Mounting hole 2120 pin 3110 Irrigation hose joint parts 3120 Plate 3121 Hose 3122 clips 3131 Fixing plate 3132 Cable tie Rc connection port 4100 Irrigation spool parts 4110 Hollow hole 4120 Chamfered part to prevent slipping out 4130 Stopper member 5100 Handle 5110 Downward stopper lever 5111 Fulcrum pin 5112 Spring 5120 Fixed plate part 5121 Lever Slit

Claims

1. A planting tool lifting clutch (200) that controls the transmission of a driving force for intermittently lifting and lowering the planting tool (131); A pivot arm (300) for turning on and off the planting tool lifting clutch (200); a slide plate (400) capable of restricting the movement of the pivot arm (300); a solenoid device (500) for intermittently sliding the slide plate (400); A stay member (600) having a wall portion (601) through which the slide plate (400) penetrates; Equipped with The slide plate (400) and the solenoid plunger (510) of the solenoid device (500) are connected using a connecting pin (420) and a connecting pin insertion hole (401), A transplanter characterized in that the connecting pin insertion hole (401) has a play for the connecting pin (420) in a direction perpendicular to the sliding direction of the slide plate (400).

2. The slide plate (400) is provided with a slide pin insertion slit (402) into which a slide pin (430) provided on the vehicle body (101) is inserted, The slide pin insertion slit (402) is located on the opposite side of the solenoid device (500) with respect to the stay member (600).

2. The transplanter according to claim 1, wherein when the slide plate (400) is in the pivot arm movement restricting position, the slide pin (430) has a play in the slide pin insertion slit (402).

3. The transplanter according to claim 2, characterized in that the width of play of the slide pin (430) when the slide plate (400) is in the pivot arm movement restricting position is larger than the width of play of the slide pin (430) when the slide plate (400) is in the pivot arm movement non-restricting position.

4. The slide plate (400) is provided with a slide plate notch (403) into which the pivot arm (300) is inserted, The slide plate notch (403) is formed from one side edge of the slide plate (400); 2. The transplanter according to claim 1, characterized in that the other side edge of the slide plate (400) is bulged at the location of the slide plate notch (403).

5. A box-shaped member (700) is provided for determining the mounting position of the solenoid device (500), the box-shaped member (700) is fitted between the wall portion (601) of the stay member (600) and a wall surface (521) of the solenoid device main body portion (520) of the solenoid device (500) facing the wall portion (601); The implanter of claim 1, wherein the slide plate (400) and the solenoid plunger (510) extend through the box member (700).

6. The slide plate (400) has a flange portion (404), The flange portion (404) is located on the side of the solenoid device (500) with respect to the stay member (600), a slide plate biasing spring (410) for biasing the slide plate (400) so that the slide plate (400) restricts the movement of the pivot arm (300) is fitted between the flange portion (404) and the wall surface (521) of the solenoid device main body portion (520); The transplanter according to claim 5, characterized in that the box-shaped member (700) is provided with a slide plate spring insertion hole (701) into which the end of the slide plate spring (410) abutting against the wall surface (521) is inserted.

7. 6. The transplanter of claim 5, wherein the box-shaped member (700) has one or more removable shim plates (710) for adjusting the mounting position of the solenoid device (500).

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