JPH0719Y2 - Auxiliary seedling stand for passenger seedling planting machine - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a riding seedling planting machine having an auxiliary seedling stand for holding seedlings to be supplied to a planting device during work.

(B) Conventional technology Conventionally, a pillar is erected on the side of the front part of the control unit, and the center part of one side of the auxiliary seedling is rotatably supported by the pillar so that the auxiliary seedling can be planted. An auxiliary seedling stand in a seedling planting machine, which is set on the outside of the pillar and set on the inside when traveling on the road so as not to hinder the running, is already known from Japanese Utility Model Publication No. 59-122020.

(C) Problems to be solved by the invention When changing the posture of the auxiliary seedling stand in the known seedling planting machine, one pin was pulled out each time it was turned, so the operation was extremely troublesome. Moreover, the auxiliary seedling stand could not change the direction only by moving in and out even when turning, and it was difficult to take out the seedlings from the driving section.

(D) Means for Solving the Problems In the present invention, the frame body of the auxiliary seedling stand is rotatably supported by a support frame provided on the frame on the front side of the driving section so that the frame body can be horizontally rotated. On the operation rod horizontally rotatably mounted, a locking member that engages and disengages with the support frame, a gripping portion that is operated at an end portion, and a positioning body that is located near the pivotal support portion are provided in a protruding manner. By attaching a stopper having a plurality of notches into which the positioning body fits in the vicinity of the pivotal support portion of the support frame, the auxiliary seedling stand can be horizontally swiveled in a plurality of stages to be locked, and the above-mentioned problems occur. Solved.

(E) Action During the planting work, the above-mentioned locking tool is engaged with the support frame to hold the auxiliary seedling stand in a fixed posture along the machine body, and the seedling placed on the auxiliary seedling stand is used as the seedling stand of the planting device. At the time of replenishment, hold the gripper and remove the above-mentioned locking tool from the support frame, horizontally rotate the auxiliary seedling stand together with its frame body, and use the positioning body as a stopper as appropriate to take out the preliminary seedling from the auxiliary seedling stand. When the auxiliary seedling table is fitted in the notch portion, the auxiliary seedling table is held in an oblique posture toward the driving section, and thus the preliminary seedling is taken out and supplied to the seedling table in this state.

When seedling supply is complete, hold the gripper to disengage the positioning body from the stopper notch, rotate the frame in the opposite direction to return the auxiliary seedling stand to its original position, and support the locking device. Tilt to the frame.

(F) Embodiment Referring to the drawings, one embodiment of the present invention is as follows: 1 is a front wheel
It is an airframe that has 2,2 and rear wheels 3,3, with an engine 5 mounted in the front part, a driving part consisting of a steering wheel 6, a driving step 7 and a driver's seat 8 in the middle part, and a rear part in the rear part. The planting device 10 is mounted so as to be able to move up and down by an upper link and a lower link.The planting device 10 is driven by a PTO shaft protruding rearward from the transmission case and a transmission case and a float as in the conventional device. 11 ··· and planted body 12
.. and seedling mounting table 13 and each plant 12 ...
The fertilizer pipes 15 ・ ・ that penetrate into the mud on the side of the engine are connected to the pump 16 by the hoses 17 ・ ・, and the fertilizer tanks 20, 20 installed on the side of the engine 5 with the side steps 18, 18 separated Since it is connected to the pump 16 by the hose 21, it is possible to apply fertilizer to the mud on the side of the seedling in the fertilizer tanks 20 and 20 at the same time as planting.

Also, at the diagonal front of the operation step 7 and in the fertilizer tank
Support members 22 and 22 made of pipes are erected at portions corresponding to the rear portions of 20, 20 and are erected from brackets 23 and 23 projecting from the side surfaces near the front ends of the side steps 18 and 18 and extending rearward. The rear end of the inverted L-shaped receiving portion 25, 25 is
A support frame A is constructed by fixing the support frame A to the upper part of the fertilizer tank 22, the front part of the fertilizer tanks 20, 20 is screwed to the rising part of the receiving part 25, and the rear part thereof is a stay 26 protruding outward from the support member 22.
It is screwed on.

The frame bodies 28 of the left and right auxiliary seedling stands 27 are column parts 28a made of pipes.
And a projecting frame 28b having a U-shape in a side view.
A plurality of sets of support rods 30 ... Are projected outward from the front and rear portions of the space 8 in the vertical direction to form a set of support rods 30 and 3.
A pedestal 31 is attached to each 0, and a vertical fulcrum shaft 32 protruding from the lower end of the column 28a is rotatably fitted and inserted in an upper portion of the support member 22.

And, a pair of support plates 33 on the front and rear of the overhang frame 28b,
33, and both ends of these support plates 33, 33 are gripped by the grips 35a, 3
One operating rod 35 bent downward as 5a is rotatably supported, and an L-shaped upper portion of which is fitted to a U-shaped notch 33a of the support plate 33 near the rear portion of the operating rod 35. The limiting plate 36 is fixed, and a tension spring 37 is interposed between the limiting plate 36 and the rear supporting plate 33 so that the limiting plate 36 is pressed against the outside of the U-shaped notch 33a of the supporting plate 33. Yes, by extending the front support plate 33 toward the fuselage side and notching the lower part as shown in FIG. 4,
The cutout portion is placed on the receiving portion 25 and contributes to support the auxiliary seedling stand 27.

A plurality of cutouts 38 are formed on the outer periphery of the support member 22.
A stopper 38 made of a fan-shaped plate having a ... Is fixed substantially horizontally, and a hook-like engagement is provided on the front part of the operating rod 35 for engaging and disengaging to the front part of the receiving part 25 in the front-rear direction. A tool 39 is fixed, and a rod-shaped positioning body 40 that is engaged with and disengaged from the cutout 38a is fixed to the rear portion.

At the above-mentioned riding rice transplanter, planting work was carried out and the seedling stand was placed.
If the seedlings in 13 become low, interrupt the work and seedling stand
When 13 is lifted and the driver grips the rear grip of the operating rod 35 and rotates counterclockwise, the lock 39 disengages from the receiving part 25 and the positioning body 40 disengages from the notch 38a of the stopper 38. . In this state, when the front part of the auxiliary seedling stand 27 is turned by an appropriate angle so that the front part thereof protrudes outward and the grip part is rotated downward, the positioning body 40 fits into the notch part 38a of the stopper 38 and is pulled. Since the fitting state is maintained by the springs 37, the spare seedlings on the receiving table 31 ... Are withdrawn on the operation step 7 together with the seedling box and supplied to the seedling mounting table 13.

When the seedling supply is completed, hold the rear grip of the operating rod 35 and rotate in the direction indicated by the arrow in FIG. 1 to remove the rear positioning body 40 from the notch 38a and set the auxiliary seedling stand 27 to the engine. When it is rotated to the 5 side to return to the original posture in the front-rear direction, the front locking device 39
Is engaged with the receiving portion 25 after being pushed down, the positioning body 40 is fitted into the cutout portion 38a at the end portion, and the tension spring 37 holds the state.

In addition, when the planting of the preliminary seedlings is completed and the aircraft is moved to a seedling storage place such as a ridge or an agricultural road to replenish the seedling placing table 13 and the auxiliary seedling table with mat seedlings, the assistant should start from the front of the aircraft. The auxiliary seedling stand 27 can be swung in the direction in which seedlings can be easily supplied and held by holding the front grip of the operating rod 35, and the bar 29 fixed to the lower part of the support portion 28a is an auxiliary seedling. When the table 27 is pivoted most outwardly, that is, when the positioning body 40 is engaged with the cutout portion 38a at the right end, it comes into contact with the receiving portion 25.

Next, explaining the torque limiter of the planting device 10,
42 is an output shaft of a mission case provided at the rear of the engine, and 43 is a transmission shaft extending rearward from the planting device 10.

As shown in FIG. 7, the conventional torque limiter includes a drive clutch 45 that is spline-fitted to the outer side of the output shaft 42 and is biased by a pressure spring 44, and a passive clutch 46 that meshes with the drive clutch 45 and is rotatable. Is configured to drive the bevel gear 48 of the transmission shaft 43 via a bevel gear 47 which is always meshed with the boss and is rotatable, and the bevel gear 48 has the planted body 12 in a raised position. Fixed position stop clutch 50
Meshes with.

In the known torque limiter, a plurality of, for example, three sets of claws meshing with each other are pressed against each other. Therefore, if there is a claw indexing error during manufacture, the shaft center is displaced due to the centering action.

In that respect, the torque limiter shown in FIG. 8 and FIG. 9 has a plurality of taper pins 51, ... Protrudingly provided on the plate surface of the drive clutch 45 at equal intervals, and the taper pin 51 is loosely fitted to the passive clutch 46. Since the taper holes 52 ... Are formed, the taper pin 51 moves along the taper hole 52 at the time of the above-mentioned alignment, and the misalignment can be reduced.

The torque limiter shown in FIGS. 10 to 11 eliminates spline fitting between the output shaft 42 and the drive clutch 45, and installs a plurality of pins 53 ... on the end surface of the holding cylinder 45a in which the pressure spring 44 of the drive clutch 45 is housed. A large-diameter hole 55 in the spring bearing plate 54 that is projectingly installed and these pins 53 ... Are spline-fitted to the end of the output shaft 42.
Alignment can be done smoothly by loosely fitting into

12 to 14 show that a brake petal 56 is linked by a rod 57 to a clutch arm 59 whose base portion is fixed to a shifter shaft 58 of a side clutch, and is further projectingly provided on a tip end portion of the clutch arm 59 and a brake shaft 60. The tip of the brake arm 61 is connected by a connecting rod 62, and the hole of a plate 64 fixed to the brake arm 61 has one end inserted into a holding rod 63, and the other end of the holding rod 63 is projected into a brake case lid 66. A spring 70 is interposed between the receiving plate 68 fixed to one end of the holding rod 63 and the plate 67, and the compression degree can be adjusted with a lock nut 71.
Since the plate 64 and the receiving plate 68 have an interval 1 as shown in FIG. 13 when the brake pedal 56 is not depressed, the side clutch is disengaged by depressing the brake petal 56, and then the brake is activated. At this time, the plate 64 abuts on the receiving plate 68 and compresses the spring, so that the operator clearly senses that the brake has started to act, and then slowly depresses the brake petal, so that the brake is locked all at once. Thus, it is possible to prevent the vehicle body from rapidly turning, and thereby to prevent the mud from being dug up due to the wheels when the vehicle body makes a sharp turn and excessive mud gathering.

FIGS. 15 to 17 show an example in which the columns 73 and 73 of the sun hood 72 are fitted and connected to the upper portions of the support members 22 and 22, and the columnar body 75 is fitted and inserted at the lower end of the column 73 to weld the plug 74. Then, the tip of the bolt 76 screwed to the support member 22 is fitted into the circumferential groove of the cylindrical body 75 and is detachably fixed.

18 to 19 show a scraper 77 for scooping out mat seedlings from the seedling box when supplying the preliminary seedlings placed on the auxiliary seedling stand to the seedling stand 13
Showing the storage of, the downward elastic plates 78, 78 are screwed to the support member 22 and the rising portion of the receiving portion 25, and the upward elastic plates 80, 80 are screwed to the step 18 below. Elastic plates 7 of them
A scraper 77 is inserted between the 8, 80 and the support member 22 and the receiving portion 25 so as to be carried, and is used by being pulled out when assisting the seedlings.

(G) Effect of the Invention In the invention, as described above, the frame 28 of the auxiliary seedling stand 27 is horizontally rotatably supported by the support frame provided on the frame on the front side of the driving unit, and the frame is rotated. The operating rod 35, which is horizontally rotatably mounted on the 28,
An engaging member 39 that engages and disengages with the support frame, a grip portion 35a that is operated at an end, and a positioning body 40 that is located near the pivot support portion are provided in a protruding manner, and the positioning is performed near the pivot support portion of the support frame. Body 40
Since a stopper 38 having a plurality of notches 38a into which the operation rod 35 is fitted is attached, when the auxiliary seedling stand 27 is swung, when the holding portion 35a of the operating rod 35 is turned to rotate, a locking tool 39 and a positioning body 40 are provided.
After separating from the support frame and the stopper 38 and turning,
The positioning body 40 fits into the notch 38a of the stopper 38 when it is held in a fixed posture, and the preliminary seedling is planted in the planting device 10.
When replenishing the seedling placing table 13 with the auxiliary seedling placing table 27, the auxiliary seedling placing table 27 can be set at a stable angle so that the preliminary seedling can be pulled out easily, and the seedling can be supplied quickly and easily.

Moreover, when the auxiliary seedling stand 27 is turned, the positioning body 40
And the stopper 38 does not interfere with each other.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view of an essential part in a state where an auxiliary seedling stand is set parallel to the traveling direction, and FIG. Same as above, perspective view, FIG. 3 is a perspective view of the state where the auxiliary seedling stand is rotated,
The figure is a front view of the front support part, FIG. 5 is a side view of the front part of the riding fertilizer seedling planting machine, FIG. 6 is a plan view of the same as above, and FIG. 7 (a) is a conventional example of the torque limiter of the riding rice planting machine. Sectional view shown, (b)
Is a cross-sectional view of a meshing portion, FIG. 8 is a cross-sectional view of a torque limiter in a riding seedling planting machine according to the present invention, FIG. 9 is a cross-sectional view taken along line AA of the same as above, FIG. 10 is a cross-sectional view of another torque limiter, FIG. 11 is a side view of the same as above, FIG. 12 is a plan view of the brake device, FIGS. 13 and 14 are side views of essential parts of the same as above, FIG. 15 is a side view of the sunshade mounting portion, and FIG. Perspective view of riding seedling planter with removal, No. 17
FIG. 18 is a cross-sectional view of the connecting portion, FIG. 18 is a perspective view of the scraper storage device, and FIG. 19 is an enlarged front view of essential portions of the same. 10 …… Planting device, 22 …… Supporting member, 25 …… Receiver, 27 ……
Auxiliary seedling stand, 35 …… Operating rod, 38 …… Stopper, 38a ……
Notch, 39 ... Locking tool, 40 ... Positioning body

Claims (1)

[Scope of utility model registration request] 1. A frame 28 of an auxiliary seedling stand 27 is rotatably and horizontally supported by a supporting frame provided on a frame on the front side of a driving section, and horizontally rotatably mounted on the frame 28. The operating rod 35 is provided with a locking member 39 that is engaged with and disengaged from the support frame, and a gripping portion that is operated at the end.
35a and a positioning body 40 located in the vicinity of the pivot portion are provided in a protruding manner, and a stopper 38 having a plurality of notches 38a into which the positioning body 40 fits is attached in the vicinity of the pivot portion of the support frame. Auxiliary seedling stand for a riding seedling planting machine.