JPH10313622A - Power transmission device for transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such problems that rotation on the transmission lower side of a planting clutch unwillingly precedes the rotation on the transmission upper side of the planting clutch by the weight of a seedling planting tool and the seedling planting timing goes wrong at the time of the process of moving the seedling planting tool of a seedling planting device downwards because the transmission downstream side of the planting clutch is relatively rotatable in a driving direction to the transmission upstream side of the planting clutch in a conventional driving force transmission device. SOLUTION: In this power transmission device of a transplanting machine for transmitting rotating power from a power force source through the planting clutch 122 to the seedling planting device, parallelly to the planting clutch 122, a clutch 152 for control for controlling the precedence of the rotation on the transmission downstream side of the planting clutch over the rotation on the transmission upper side of the planting clutch by the weight of the seedling planting tool of the seedling planting device is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a power transmission device for a transplanting machine such as a vegetable transplanting machine.

[0002]

2. Description of the Related Art A power transmitting device of a transplanting machine is provided with a planting clutch for transmitting rotational power from a power source to a planting drive shaft for driving a seedling planting device. There is a type in which the planting clutch is configured by combining a one-way clutch that transmits only from the driving side to the driven side in the driving direction and does not transmit the power in the reverse direction, and a switching unit that switches the transmission of the one-way clutch between on and off.

[0003]

SUMMARY OF THE INVENTION
Since the transmission lower side of the planting clutch is relatively rotatable in the driving direction with respect to the transmission upper side of the planting clutch, when the seedling implant of the seedling planting apparatus is in the process of moving downward,
Due to the weight of the seedling-planting tool, the rotation of the planting clutch on the lower transmission side precedes the rotation of the planting clutch on the lower transmission side, and the seedling implantation timing may be deviated. An object of the present invention is to prevent this.

[0004]

Means for Solving the Problems In order to solve the above problems, the present invention is configured as follows. That is, the power transmission device for a transplanting machine according to the present invention is a power transmission device for a transplanting machine that transmits rotational power from a power source to a seedling planting device via a planting clutch. A regulating clutch that regulates that the rotation of the transmission lower side of the planting clutch precedes the rotation of the transmission upper side of the planting clutch by the weight of the seedling implantation tool of the planting device. I have.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described by taking a vegetable transplanter shown in the drawings as an example.

In this vegetable transplanter 1, while the body is advanced with the pair of left and right front wheels 2, 2 and rear wheels 3, 3 straddling the ridge, vegetable seedlings are placed on the upper surface of the ridge A covered with the multi-film. Is planted.

A transmission case 5 is provided at the center in the front-rear direction of the body, and an engine 7 is mounted on an engine base 6a of a front frame 6 integrally provided at a front portion thereof. The front upper part of the transmission case 5 is formed in a concave shape in a side view,
An alternator 9 is provided there. Further, a hydraulic pump 10 is provided below the alternator 9.

The front end of the planting transmission case 12 is fixed to the outside of a plate-like mounting portion 5a projecting rearward from the rear left end of the transmission case 5. A rear frame 13 extending rearward is fixed to the rear end of the planting transmission case 12. A right rear portion of the transmission case 5 has a shape protruding rearward, and a front end portion of the frame pipe 14 is fixed outside the protruding portion 5b. The mounting part 5
The multi-cut device 16 and the hole making device 17 are respectively disposed in a space formed between a and the protruding portion 5b.
A seedling planting device 18 is provided between the planting transmission case 12 and the frame pipe 14.

Planting transmission case 12 and frame pipe 14
From the front and rear intermediate portions of the first support plates 20 and 2
0 is provided obliquely upward and rearward, and second support plates 21 and 21 are provided at the rear of the first support plate. The handle mounting shaft 22 is connected to the upper ends of the left and right second support plates 21 and 21, and the base of the steering handle 23 is mounted on the left and right ends of the handle mounting shaft so as to adjust the angle. An operation panel 24 is attached to the base of the steering handle 23.

[0010] The multi-cut device 16 is provided with the mounting portion 5a.
The base of the parallel link 26 is pivotally attached to a bracket 25 fixed to the inside of the bracket, and a connecting plate 27 is attached to the tip of the parallel link 26.
, And a multi-cut heater 28 is attached to the connection plate so as to be vertically adjustable. The parallel link 26 is formed by a cam mechanism comprising a cam 30 attached to a PTO shaft S15 projecting rearward from the back of the transmission case 5 and a roller-shaped cam follower 31 rotatably supported at an intermediate portion of the upper link 26a of the parallel link. Rotates up and down, and the heater 28 moves up and down with a constant posture. When the heater 28 descends to a certain height, the lower surface of the heater 28 comes into contact with the multi-film covered with ridges, and a hole for transplanting seedlings is formed in the multi-film. The heater 28 generates heat by the electricity generated by the alternator 9.

The drilling device 17 pivotally connects the base of the parallel link 33 to the bracket 25, mounts a fixed drilling plate 34 of the parallel link 33, and further attaches a movable hole plate 35 to the fixed drilling plate 34. It is rotatably mounted. Both operation hole plates 34 and 35 are provided side by side. The movable hole plate 35 is urged toward the fixed hole plate by a torque spring 36. An opening / closing rod 38 is attached to the boss 37 of the movable hole plate 35.
The lower end of the opening and closing rod 3 is rotatably mounted.
The upper part of 8 is slidably fitted to a rod sliding bush 39 rotatably attached to the lower link 33b of the parallel link. A double nut 40 for regulating a sliding stroke is screwed to the upper end of the opening / closing rod 38. The PT
The parallel link 33 is turned up and down by a cam mechanism comprising a cam 41 attached to the O-axis S15 and a roller-shaped cam follower 42 rotatably supported at an intermediate portion of the upper link 33a of the parallel link. The plates 34 and 35 move up and down. When the drilling plates 34 and 35 are above the ground, the intermediate portion of the opening / closing rod 38 is
, The movable hole plate 35 is closed by the tension of the torque spring 36.
As the positions of the opening and closing rods 38 and 35 move down to the upper end side as the opening and closing rods 38 and 35 move down, the double nuts 40 move to the rod slides. The opening / closing rod 38 is pulled upward in contact with the moving bush 39, and the movable hole plate 35 is opened against the tension of the torque spring 36. Thereby, the seedling transplanting hole B is formed in the topsoil portion. Since the hole B is expanded and formed in a direction perpendicular to the traveling direction of the airframe, the soil cannot be raised before and after the formed hole B. For this reason, the slope of the hole is unlikely to collapse, and the necessary minimum number of seedling transplant holes can be formed. When the mounting position of the double nut 40 is changed, the opening / closing amount of the movable hole plate 35 changes, and the size of the seedling transplant hole B changes.

The seedling planting apparatus 18 includes a first rotating case 45 that rotates around a rear portion of the planting transmission case 12 as a fulcrum, and a second rotating case 46 that rotates around the tip of the first rotating case as a fulcrum. And a seedling implant 47 rotatably attached to the second rotating case, and a pair of planting claws 4 are attached to the seedling implant.
7a, 47a and a seedling extruded body 47b are provided. When the first rotating case 45 and the second rotating case 46 rotate in a predetermined rotation direction at a predetermined speed ratio, the planting claw 4 is rotated.
The seedling implant 47 moves in a fixed posture so that the tips of 7a and 47a draw a closed loop locus C. The planting claws 47a, 47a are closed at the upper part of the locus to pinch the seedling at the seedling take-out port, and the planting claws 47a, 47a are opened at the lower part of the locus, and the seedling extruded body 47b protrudes and holds the seedling. Release into implantation hole B.

A seedling mounting table 50 is provided on the upper part of the body. The seedling mounting table 50 is a table that is slightly inclined so that the front part is higher, and the rear part is slidably supported by the left and right support rails 51 fixed to the planting transmission case 12 and the frame pipe 14, and the engine 7 The front portion is supported by a roller 52 provided above, and reciprocates left and right by a lateral movement mechanism in the transmission case 5. By laterally moving the seedling mounting table 50 on which the seedlings are placed, the last row of seedlings on the seedling mounting table is sequentially supplied by one plant to the seedling outlet formed in the seedling receiving frame 54 integrated with the support rail 51. When the seedling mounting table 50 reaches the end of the left-right stroke and supplies all the seedlings in the last row, the seedling feed belt 56 driven by the motor 55 operates, and the group of seedlings on the seedling mounting table 50 becomes one row. Transfer backward by minutes.

A pair of right and left compression wheels 5 are provided at the lower part of the fuselage.
8, 58 are provided. The crushing wheels 58, 58 are provided diagonally so that the interval between them becomes narrower toward the lower part, and the soil around the seedling transplanting hole B after the seedlings are planted is collapsed to refill the hole, and the trace is removed. It is designed to lightly crush. Squeezing wheel frame 59 that supports crushing wheels 58, 58
Is mounted on the back of the transmission case 5 so that it can swing up and down. The rear end of the pressure-reducing wheel frame 59 is suspended at the distal end of the planting depth adjusting arm 61 in a state of being urged downward by the spring 60,
By rotating the planting depth adjusting arm 61 with the planting depth adjusting lever 63, the mounting height of the pressure suppression wheels 58, 58 is changed, and the planting depth of the seedlings is adjusted. . Reference numeral 64 denotes a lever guide having a recess for fixing the operating position of the planting depth adjusting lever 63 in a plurality of stages.

The rear wheel drive case 6 is mounted on the traveling drive shafts S8, S8 projecting laterally from the left and right side surfaces of the transmission case 5.
The bases 6, 66 are rotatably fitted, and rear wheels 3, 3, which are drive wheels, are pivotally supported at the front end of the rear wheel drive case. The tip of the traveling drive shaft S8 is rotatably supported by a bearing 68 attached to a stay 67 fixed to the transmission case 5. The rear wheel drive case 66 includes a plurality of U-shaped spacers 6 between the transmission case 5 and the bearing 68.
9 are fitted to the traveling drive shaft S8 while being positioned. Spacers 69, ... and rear wheel drive case 66
The rear wheel tread can be changed by rearranging the positions of the rear wheels.

At the left and right central portions of the handle mounting shaft 22,
The base of the rear wheel elevating cylinder 71 is supported rotatably back and forth. A sliding body 73 urged toward the distal end by a spring is fitted to a piston rod 71a projecting downward from the rear wheel elevating cylinder 71, and a left and right crankshaft is attached to both left and right ends of a horizontal shaft 75 integrated therewith. One end of a rear wheel elevating crank 77 that rotates integrally with the motor 76 is connected to each other. The other end of the rear wheel elevating crank 77 is connected via a rear wheel elevating rod 79 to a swing arm 80 integrally provided at the base of the rear wheel drive case 66. The rear end of the left rear wheel lifting rod 79L is a left rear wheel lifting crank 77.
L is connected directly to the right rear wheel lifting rod 79
A piston rod 81a of a left-right tilt cylinder 81 is connected to the rear end of R, and the left-right tilt cylinder 81 is connected to the right rear wheel lifting / lowering crank 77R. When the rear wheel elevating cylinder 71 is extended and retracted, the left and right rear wheel drive cases 66, 66 rotate in the same direction by the same amount, and the body is moved up and down. Further, when the right and left tilt cylinder 81 is extended and contracted, only the right rear wheel drive case 66 rotates, and the body tilts left and right.

The rear wheel lifting crank 77 includes a first arm portion 77a connected to a horizontal shaft 75, and a rear wheel lifting rod 79.
L or the second arm 77b connected to the left and right tilt cylinder 81 is formed separately. The former is a crankshaft 7
6 is fixed to a fixed position of a hexagonal shaft portion 76a formed at both left and right end portions. The latter is slidably fitted in the hexagonal shaft portion 76a in the axial direction and fixed in position by fixing bolts 83. With this configuration, when the rear wheel tread is changed, the second arm portion 77 is used for the rear wheel elevating mechanism.
It is only necessary to slide only b to the position corresponding to the rear wheel drive case 66, and the operation is simple.

A front wheel support frame 86 is attached to a front-rear pivot shaft 85 provided at the front end of the front frame 6 so as to be swingable right and left, and a front wheel rotation shaft provided through the front wheel support frame and provided in the left and right direction. Front wheel support arms 88 at the left and right ends of 87
The front wheels 2 and 2 are rotatably supported at the tip of the front wheel support arm.

A front wheel lifting cylinder 90 is mounted on the front wheel support frame 86.
Is rotatably attached to the piston rod 90a.
Are connected to a front wheel lifting arm 91 fixed to the front wheel rotation shaft 87. When the front wheel elevating cylinder 90 is extended and retracted,
The front wheel support arm 91 rotates up and down, and the front wheels 2 and 2 move up and down with respect to the body.

A rear wheel elevating valve 93 for controlling the rear wheel elevating cylinder 71, a left and right inclining valve 94 for controlling the left and right inclining cylinder 81, and a front wheel elevating valve 95 for controlling the front wheel elevating cylinder 90 are provided on a second support plate at the rear of the body. 21,
21 are collectively arranged at an inner position. An operation panel 24 is provided above the rear wheel lifting cylinder 71 and each valve. As a result, since various operating tools are collectively provided at the rear portion of the body, the operation of the various operating tools is very easy for an operator who walks behind the body while holding the control handle 23. A hydraulic hose for supplying hydraulic oil from the hydraulic pump 10 at the front of the machine to each valve is provided through the frame pipe 14.

The rear wheel elevating valve 93 is an electromagnetic valve, and a switch box 97 for controlling its driving.
Are provided so as to move up and down integrally with the movement of the tip of the planting depth adjusting arm 61. In this switch box 97, an up switch 98 and a down switch 99 are accommodated at predetermined intervals in the vertical direction. The up switch 98 and the down switch 99 are connected to the sensitivity adjusting shaft 10.
0 threaded portions 100a, 100 threaded in opposite directions
00b, the distance between the switches 98 and 99 can be changed by rotating the sensitivity adjustment shaft 100. A height detection rod 102 attached to the compression wheel frame 59 is slidably inserted into the switch box 97 up and down, and a switch operation plate 103 fixed to the height detection rod is positioned between the actuators of both switches. doing.

When the pressure-reducing wheels 58, 58 move upward with respect to the fuselage by a certain amount due to the unevenness of the upper surface of the ridge, the raising switch 98
Is turned on, and the rear wheel elevating valve 93 is driven to the body ascending side. Conversely, when the pressure-reducing wheels 58, 58 move downward by a certain amount or more with respect to the body, the lowering switch 99 is turned ON, and the rear wheel elevating valve 93 is driven to the body lowering side. In this manner, the planting depth of the seedlings is maintained constant by raising and lowering the body according to the vertical movement of the compression wheels 58, 58. Incidentally, even if the pressure-reducing wheels 58, 58 move up and down due to the unevenness on the upper surface of the ridge, the operation is absorbed by the spring 60, so that the switch box 97 does not move up and down. When the distance between the switches 98 and 99 is changed by rotating the sensitivity adjusting shaft 100, the pressure reducing wheels 58 and 5 required for turning on the switches are turned on.
8, the magnitude of the vertical movement changes, and the sensitivity of the planting depth control is adjusted.

Further, by operating the rear wheel elevating lever 104, the rear wheel elevating valve 93 is manually driven to
3 can be raised and lowered.

The left-right tilt valve 94 is driven based on the movement of the pendulum 106 for detecting the right-left tilt of the body, and controls the left-right tilt of the body to be always constant. When the right and left rear wheel 3 is moved up and down by driving the left and right tilt valve 94,
Following this, the front wheels 2 and 2 swing about the pivot shaft 85, and the inclination of the body is adjusted so that the left and right inclinations are the same at the front part and the rear part. On a slope or the like, the fulcrum position of the pendulum 106 is shifted by the left / right tilt adjustment lever 107 to change the reference for the right / left tilt control, so that the seedling is adjusted so as to be planted at the center of the ridge. When the left / right tilt fixing lever 108 is operated in a predetermined manner, the right / left tilt control based on the movement of the pendulum 106 is not performed.

The front wheel lifting valve 95 is a front wheel lifting lever 1
09 and manually driven. For example, when the vehicle is running on a slope, if the height of the front wheels is adjusted so that the front and rear slopes match the inclination, the traveling performance is improved. When loading or unloading a truck, it is advisable to keep the aircraft close to the front and rear horizontal for safety. When seedlings are to be planted in a field that is inclined forward and backward, adjusting the height of the front wheels to make the body horizontal in the front and rear direction allows the seedlings to be planted in the vertical direction, which is favorable for the growth of the seedlings.

Next, a power transmission device of the vegetable transplanter will be described. The rotational power of the engine 7 is transmitted from the engine output shaft S1 to the transmission input shaft S2 by the first belt transmission 110. Also, the mission input shaft S
2 to the alternator drive shaft S3 from the second belt transmission 1
11 transmitted. An end of the transmission input shaft S2 opposite to the input side protrudes out of the transmission case 5, and the protrusion serves as a drive shaft of the hydraulic pump.

The rotational power input to the transmission input shaft S2 is transmitted via the main clutch 113 to the main transmission 114 having three forward speeds and one reverse speed. "First forward speed" and "second forward speed" are shift positions during planting work, and "third forward speed" is a shift position when traveling on the road. Main transmission 114
Is operated by the main shift lever 11 provided on the rear left side of the fuselage.
Step 5 The rotational power shifted by the main transmission 114 is
The traveling output shaft S6 and the planting output shaft S7 branch out into a traveling power and a planting power, respectively, and are taken out.

The power for traveling is transmitted to the left and right traveling drive shafts S8, S8 by the side clutch 117 so as to be able to be transmitted and received individually, and further transmitted from the respective traveling drive shafts S8, S8 to the inside of the rear wheel drive cases 66, 66. The power is transmitted to the rear wheel axles S9, S9 via the chains 118, 118. The traveling drive shaft S8 is separated into a portion on the transmission case 5 side and a portion on the rear wheel drive case 66 side.
9 is connected. This is because the rear wheel for the open field and the rear wheel for the mulch are replaced together with the rear wheel drive case 66, so that it is possible to cope therewith.

The planting power is transmitted to the planting drive shaft S13 via the safety clutch 121 and the planting clutch 122. The safety clutch 121 is configured to cut off the transmission when the load exceeds a certain level. Planting clutch 122
Turns on / off the transmission to the planting drive shaft S13, and at the time of transmission, continuously transmits to the planting drive shaft S13 according to the shift position of the inter-stock switching device 123, or intermittently at a cycle of a plurality of stages. It is designed to transmit power. Stock switching device 1
The speed change operation of 23 is performed by the inter-gear speed change lever 124 provided on the rear left side of the body.

From the planting drive shaft S13, the planting transmission case 1
2 through a chain 126 in the seedling planting device drive shaft S1.
4 is transmitted. Further, the output is taken out from the planting drive shaft S13 via the bevel gears 127 and 128 to the PTO shaft S15 for driving the multi-cut device 16 and the hole making device 17. Further, power for laterally feeding the seedling mounting table is taken out from the planting drive shaft S13 via a pair of unequal-diameter transmission gears 130 and 131 having different diameters. This power is transmitted to the lead camshaft 134 after being selectively shifted to one of three speed ratios by the lateral feed transmission 132.

The lead cam shaft 134 is a shaft having a spiral groove formed on the outer periphery, and a claw of a lead metal 137 fixedly attached to the seedling feed drive rod 136 is engaged with the groove. Both ends of the seedling feed drive rod 136 protrude outside the case, and both left and right ends thereof are fixed to the seedling mounting table 50. When the lead cam shaft 134 rotates, the lead metal 137 moves in the axial direction along the above-mentioned groove.
0 is reciprocated right and left, and the seedlings on the seedling mounting table 50 are sequentially supplied to the seedling removal outlet. By shifting the lateral feed transmission 132 to an arbitrary shift position and appropriately setting the moving speed of the seedling mounting table 50, the number of seedlings to be removed per stroke is reduced to three.
Switch to the stage.

FIG. 11 shows a main part of the power transmission device. S11 is an inter-stock speed change drive shaft, on which the inter-stock speed change drive gears 140 (1 to 5) are fitted so as to rotate integrally. S12 is an inter-stock shift driven shaft, on which inter-stock shift driven gears 141 (1 to 5) are individually fitted so as to idle. Corresponding gears between the inter-gear shift drive gears 140 (1 to 5) and the inter-gear shift driven gears 141 (1 to 5) mesh with each other. Inter-gear shift drive gear 140 (1)
The number of teeth of the inter-shift transmission driven gear 141 (1) is 1: 1, and the ratio of the number of teeth of the driven gear to the driving gear is increased in the following order. Reference numeral 142 denotes an inter-stock shift shifter having a keyway 144 of an inter-stock shift driven shaft and a shifter key 142a fitted into a key groove 145 of an inter-stock shift driven gear, and the entirety slides axially on the outer peripheral portion of the inter-stock shift driven shaft S12. Fits freely. Inter-shift transmission driven gear 1 with which shifter key 142a is engaged
41 and the inter-shift transmission driven shaft S12 rotate integrally. By shifting the inter-stock shift shifter 142 and switching the inter-stock shift driven gear 141 that engages with the shifter key 142a, the shift is performed from “first speed” to “fifth speed”.

FIGS. 11 and 12 show the configuration of the planting clutch. The planting clutch 122 is a roller clutch type one-way clutch 146 that is transmitted only in the driving direction from the driving-side clutch case 146a to the driven-side bush 146b and is not transmitted in the reverse direction, and a clutch that switches between transmission on and off of the one-way clutch. It is configured by combining with an operating body 147. The gear 148 of the inter-stock speed change drive shaft S11 meshes with the clutch gear 146c, and the clutch case 146a is constantly rotating.

The rotation of the inter-shift transmission driven shaft S12 causes the planting clutch operating pin 150 attached to the shaft to intermittently rotate the clutch operating body 147 in a predetermined direction. When the clutch operating body 147 rotates, the engagement between the engaging claw 147a of the planted clutch operating body and the clutch cam 146d is released, and the rotation of the clutch case 146a causes the bush 146 to rotate.
b, the planting drive shaft S13 makes one rotation.

When the inter-stock transmission 123 is in the "first speed", the engaging pawl 147a of the planting clutch operating member and the clutch cam 14
Since the cycle in which the engagement of 6d is released is synchronized with the cycle in which the planting drive shaft S13 makes one rotation, the planting drive shaft S13 rotates continuously. When the inter-stock transmission 123 is in the "second speed" to "fifth speed", the former cycle is longer than the latter cycle, so that the planting drive shaft S13 is driven at a cycle corresponding to the shift position of the inter-stock transmission. Rotate intermittently. Therefore, the inter-stock transmission 1
By shifting the number 23, it is possible to adjust the spacing between the seedlings to be planted. Clutch operating body 147
Is slid to the position indicated by the dashed line, the planting clutch operating pin 150 stops acting on the clutch operating body 147,
The transmission of the planting clutch 122 is stopped.

The planting drive shaft S13 is provided with a regulating one-way clutch 152 that acts in the opposite direction to the one-way clutch 146 of the planting clutch 122. That is, the one-way clutch 152 is
Power is transmitted from 52b only to clutch case 152a. And gear 1 of this one-way clutch
52c and the gear 153 attached to the inter-stock speed change drive shaft S11
And are engaged. Therefore, when the seedling implanting tool 47 of the seedling implanting device 18 is in the process of moving downward, the weight of the seedling implanting tool causes the planting clutch 122 to move closer to the transmission lower side than the transmission upper rotation. Acts as a brake that regulates the advance of rotation.

[0037]

As is apparent from the above description, the power transmission device of the transplanting machine according to the present invention is more suitable for planting than for transmitting the planting clutch on the upper hand side due to the weight of the planting tool of the planting device. Since the clutch for regulating the rotation of the clutch on the lower side is provided is provided, the rattling planting device does not rattle or the like, and the planting device always operates accurately and smoothly. Planting accuracy can be improved.

[Brief description of the drawings]

FIG. 1 is an overall side view of a vegetable transplanter.

FIG. 2 is an overall plan view in which a part of the vegetable transplanter is omitted.

FIG. 3 is a perspective view of a multi-cut device and a hole making device.

FIG. 4 is a side view of a mechanism for raising and lowering a rear wheel.

FIG. 5 is a plan view of a mechanism for lifting and lowering a rear wheel.

FIG. 6 is a rear view of the rear wheel support.

FIG. 7 is a perspective view of a front wheel support.

FIG. 8 is a side view of a compression wheel support portion.

FIG. 9 is a rear view of the compression wheel support portion.

FIG. 10 is a diagram of a transmission mechanism.

FIG. 11 is a developed cross-sectional view illustrating a main part of the power transmission device.

FIG. 12 is a diagram illustrating a configuration of a planting clutch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vegetable transplanter 2 Front wheel 3 Rear wheel 5 Transmission case 7 Engine 16 Multicut device 17 Hole making device 18 Seedling plant 23 Operating handle 50 Seedling table 58 Repressing wheel 122 Planting clutch 123 Interplant transmission 146 Planting clutch One-way clutch 147 Clutch operating body 152 One-way clutch for regulation

Claims (1)

[Claims] 1. A power transmitting device for a transplanting machine for transmitting rotational power from a power source to a seedling planting device via a planting clutch, wherein the seedling planting device of the seedling planting device is mounted on a lower side of the transmission of the planting clutch. A power transmission device for a transplanting machine, comprising a regulating clutch that regulates the rotation of the lower side of the transmission of the planting clutch ahead of the rotation of the upper side of the transmission of the planting clutch depending on the weight of the tool.