JP6495757B2 - Marker mounting structure - Google Patents

Description

  The present invention relates to a marker mounting structure in which a streak-like mark is attached to a field so that the width between adjacent strips can be made constant.

  Generally, when sowing in a field, sowing may be performed using a marker.

  This marker is made by bending both ends of the arm that protrudes in the left-right direction of the seeding machine downward so that a streak mark can be attached to the ground at the lower end. Is used as a mark, and the width of adjacent strips can be made constant.

  By the way, as shown in FIG. 7, a conventional general marker is attached to a rotation shaft 91 provided on a fixed frame 90 and is rotated in a vertical direction and a horizontal direction.

Japanese Unexamined Patent Publication No. 2000-312507 (FIG. 4 etc.)

  However, such a configuration has the following problems.

  In other words, when it is necessary to increase the width between adjacent strips, it is necessary to lengthen the arm accordingly. The height is required and the arm gets in the way. Further, when the height dimension becomes large in this way, there is a problem that the marker vibrates and becomes unstable when traveling on a general road or the like.

  Also, when increasing the number of seeds to be seeded in a single run, or when expanding on the field by reducing the lateral width when traveling on general roads, the sowing section increased in the left-right direction or expanded sowing There is also a problem that the marker must be attached to the side of the part, and the attaching operation becomes troublesome.

  Accordingly, the present invention has been made paying attention to the above-mentioned problem, and even when the width of adjacent strips is wide, a marker that allows a streak mark to be attached without increasing the arm length of the marker It is an object to provide a mounting structure.

That is, in order to solve the above-mentioned problems, the present invention has an arm that extends in the left-right direction with respect to the traveling direction and can be marked on the field with a marking portion provided at the lower end portion, and a pivot shaft. as a rotation means for rotating the arm in the upright direction, provided with the pivot shaft slidable slide frame in the lateral direction, the rotating means, the arm with the extending the slide frame The arm is configured to rotate in the standing direction as the slide frame is contracted by rotating in the horizontal direction .

Further, as the slide frame is extended, the arm is rotated in the horizontal direction by pulling the base end portion provided on the opposite side of the marking portion with respect to the rotation shaft of the arm with the link member. Then, as the slide frame is contracted, the base end portion and the link member are bent so as to overlap each other so that the arm is rotated in the standing direction .

If comprised in this way, even if it is in the state where the arm was shortened, while being able to position an arm outside by sliding the rotation axis outside, the rotation axis is slid inward and the arm is moved. When stored, the height dimension can be reduced, and the swing of the arm can be reduced even when traveling on a general road. Further , the arm can be rotated simply by expanding and contracting the slide frame, and it is not necessary to provide a new drive mechanism or the like only for rotating the arm.

In addition, a first slide frame is provided that can be extended in the left-right direction with respect to the fixed frame provided in the airframe, and has an expansion processing unit that performs processing on the expanded strip. The second slide frame having the rotating shaft is further slid in the left-right direction.

  If comprised in this way, when there is no need for marking, a 2nd slide frame can be shrunk | reduced, and only when it needs to perform marking, a 2nd slide frame can be extended and marking can be performed.

Further, the slide of the first slide frame from the stationary frame, so as to slide in one of the telescopic members in common and a slide of the second slide frame from the first sliding frame.

  If comprised in this way, it becomes unnecessary to provide the separate new drive mechanism for rotating an arm, and it can finish at low cost. In addition, the number of hydraulic outlets required from the tractor can be reduced.

According to the present invention, even when short for A over arm, it is possible to position the arm outward by sliding the pivot shaft to the outside. Further, when the arm is accommodated by sliding the rotation shaft inward, the height dimension can be reduced, and the swing of the arm can be reduced even when traveling on a general road.

Schematic side view of a fertilizer seeding machine in one embodiment of the present invention Schematic showing the back of the fertilizer sowing machine in the same form State diagram when sliding the fertilizer in the same form in the left-right direction The figure which shows the fixed frame, 1st slide frame, and 2nd slide frame in the same form Fig. 2 shows the first slide frame extended from the state shown in Fig. 2. The state which extended the 2nd slide frame from the state of Drawing 5 The figure which shows the rotation structure of the marker in a prior art example

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The attachment structure of the marker 3 in this embodiment is applied to the agricultural machine 1 that can perform fertilization treatment, sowing treatment, etc. for each strip of a certain width, such as a fertilizer applicator, a sowing machine, and a rice transplanter. As shown in FIG. 2, a first slide frame 22 that slides in the left-right direction from the fixed frame 21 and a second slide frame 23 that slides further outward from the first slide frame 22 are provided. A marker 3 for attaching a streak-like mark to the field is attached to the slide frame 23. And when using the marker 3, as shown in FIG.5 and FIG.6, the 1st slide frame 22 and the 2nd slide frame 23 are slid outside, and the marker 3 provided in the 2nd slide frame 23 is used. The pivot shaft 43 is moved outward, and the arm 31 can be tilted horizontally by pulling the proximal end portion 31a of the arm of the marker 3 with the link member 42 provided on the proximal end shaft 41 on the fixed frame 21 side. Is. Hereinafter, the attachment structure of the marker 3 in the present embodiment will be described.

  First, the fixed frame 21 is provided on a machine body towed by a tractor, and here, is constituted by a hollow frame as shown in FIG. As shown in FIG. 2, a base end shaft 41 for connecting a link member 42 is provided on the upper side in the vicinity of the left and right ends of the fixed frame 21, and the link member 42 is rotated on the base end shaft 41. I try to install it as possible. On the other hand, a hydraulic cylinder 5 constituting an expansion / contraction member is attached to the lower side of the fixed frame 21, and the first slide frame 22 and the second slide frame 23 are expanded and contracted by controlling the hydraulic pressure. . The fixed frame 21 is provided with a fertilizer 61, a seeding unit 62, and the like constituting the processing unit at regular intervals. As shown in FIG. 1, a groove is formed by a disk opener 64 provided on the front side. After the fertilizer supplied from the hopper 63 is dropped and lightly covered with soil, the seed is dropped from the seeding part 62 so that the closer 65 and the pressure reducing roller 66 can cover and reduce the soil.

  As shown in FIG. 4, the first slide frame 22 attached to the fixed frame 21 is inserted inside the hollow fixed frame 21 and is slid in the left-right direction along the fixed frame 21. It is like that. When the slide position of the first slide frame 22 is fixed, as shown in FIG. 4 (c), pins 24 (shown by hatching in the figure) are provided in the holes 25 provided in the fixed frame 21 and the first slide frame 22. The first slide frame 22 can be fixed to the fixed frame 21 by inserting the state). The first slide frame 22 is provided with a fertilizer 61W and a seeding unit 62W that constitute the expansion processing unit of the present invention. When traveling on a general road, as shown in FIG. 22 is contracted in the central direction, the fertilizer 61W and the sowing part 62W (broken line part) are brought close together, and when working in the field, the first slide frame 22 is extended to the outside and the extended fertilizer 61W and the extended sowing part 62W is arranged at equal intervals. This expansion processing unit has the same configuration as the processing unit provided in the fixed frame 21, and forms a groove with a disk opener 64 provided on the front side to drop the fertilizer supplied from the hopper 63, After lightly covering the soil, the seed is dropped from the seeding unit 62 so that the closer 65 and the pressure-reducing roller 66 can cover and reduce the soil. In addition, when supplying fertilizer from the hopper 63 to the fertilizer 61W expanded in the left-right direction in this way, the fall angle from the hopper 63 becomes small, so if the fertilizer is dropped in the inclined direction using a duct or the like, There is a possibility that the fertilizer will be clogged. Therefore, as shown in FIG. 3, a channel member 67 that slides in the left-right direction together with the first slide frame 22 is provided, and the auger 68 provided in the channel member 67 is rotated to force the fertilizer falling from the hopper 63. It is transported in the left-right direction and dropped.

  On the other hand, the second slide frame 23 is slidably attached to the first slide frame 22 and is configured to have the marker 3. The second slide frame 23 is configured to slide integrally with the first slide frame 22 by inserting a pin 24 into a hole 25 provided on the distal end side of the first slide frame 22 (FIG. 4 ( a) and (b)), and the pin 24 is removed and the pin 24 is inserted between the first slide frame 22 and the fixed frame 21 (FIG. 4C). Only one slide frame 22 can be extended outward.

  The marker 3 attached to the second slide frame 23 is configured such that the arm 30 is rotated using the rotating means 50 between the horizontal direction and the standing direction, and the height dimension is reduced when standing. In addition, it is configured so that a mark can be attached to a distant place when it is tilted horizontally. As shown in FIG. 2 and FIGS. 5 and 6, the arm 30 includes a base arm 31 and an auxiliary arm 32 that is provided with a streak-like mark on the field by a marking portion 33 at the lower end portion. It is configured to rotate between a standing direction and a horizontal direction around a rotation shaft 43 provided on the upper surface side of the second slide frame 23. The turning means 50 for turning the arm 30 is composed of a first slide frame 22 and a second slide frame 23 that slide in the left-right direction, the hydraulic cylinder 5, and the like, and is provided inside the base arm 31. The first slide frame 22 and the second slide frame 23 are extended in a state where the link member 42 is connected to the base end portion 31 a, and thereby the base end portion 31 a of the base arm 31 is pulled by the link member 42 and the base arm 31. Can be tilted horizontally.

  Next, the operation of the marker 3 mounting structure configured as described above will be described.

  First, when the aircraft is stored in a hangar or when traveling on a general road, the left and right widths must be reduced, so the first slide frame 22 and the second slide frame 23 are reduced to the fixed frame 21 side. In addition, the base arm 31 of the marker 3 is raised (state shown in FIG. 2). At this time, the auxiliary arm 32 is removed from the base arm 31 as necessary. When the first slide frame 22 and the second slide frame 23 are contracted to the fixed frame 21, the pins 24 are inserted into the holes 25 of the first slide frame 22 and the second slide frame 23 (FIG. 4A). ) In this state, the hydraulic cylinder 5 is contracted. As a result, the first slide frame 22 and the second slide frame 23 are pulled together toward the fixed frame 21 and moved toward the center. Further, when the second slide frame 23 is contracted in this way, the distance between the base end shaft 41 of the fixed frame 21 and the rotation shaft 43 of the marker 3 decreases, and the base end bent downward in the base arm 31 by the link member 42. The portion 31a rotates downward, and the base arm 31 comes to stand. At this time, since the link member 42 and the base end portion 31a are bent so as to overlap, the rising height of the base arm 31 is lowered accordingly.

  Next, when used in a farm field, the fertilizer 61W and the sowing part 62W are expanded and the marker 3 is tilted outward. At this time, when the hydraulic cylinder 5 is extended in a state where the pin 24 is attached between the first slide frame 22 and the second slide frame 23 (FIG. 4B), the first slide frame 22 that has been brought to the center. The channel member 67 extends outward, and the fertilizers 61 and 61W and the sowing parts 62 and 62W are arranged at equal intervals, so that a plurality of strips can be fertilized and seeded simultaneously. At this time, as the second slide frame 23 moves outward, the base end shaft 41 of the fixed frame 21 and the rotation shaft 43 of the marker 3 are separated as shown in FIG. The base end portion 31a is pulled by the link member 42, and the base arm 31 falls down in the horizontal direction.

  In this state, the pin 24 is pulled out, and the pin 24 is inserted into a hole 25 provided between the fixed frame 21 and the first slide frame 22 (FIG. 4C). To fix. When the hydraulic cylinder 5 is further extended in this state, only the second slide frame 23 is slid outward, and the rotation shaft 43 of the marker 3 is further moved outward. Then, as shown in FIG. 6, the base end portion 31a of the base arm 31 of the marker 3 is further pulled by the link member 42, and the base arm 31 becomes horizontal. Then, the auxiliary arm 32 is attached to the tip portion. At this time, the distance from the base end shaft 41 is the sum of the length of the link member 42, the length of the base end portion 31 a, and the lengths of the base arm 31 and the auxiliary arm 32. On the other hand, when the base arm 31 is erected, the link member 42 and the base end portion 31 a are folded to the lower side of the rotation shaft 43, so that the height dimension is equal to the length of the base arm 31. As a result, the height during storage can be reduced, and fluctuations during traveling on ordinary roads can be reduced.

  Then, the marking part 33 is grounded to the ground by tilting the arm in the horizontal direction in this manner, and the farm is run in that state. Then, a streak-like mark is attached by the marking portion 33, and when the machine body is folded and traveled in the reverse direction, the fertilizer treatment and the seeding process are performed at the time of the folding run by running the mark in a straight line as a mark. The fertilization treatment and sowing treatment can be performed with a constant width between the strips.

As described above, according to the above embodiment, the arm 30 that extends in the left-right direction with respect to the traveling direction, and can mark the farm field with the marking portion 33 provided at the lower end portion, and the rotation shaft 43 are provided. and a rotating means 50 for rotating the arm 30 in the upright direction as a fulcrum, provided with a slidable slide frame to the pivot shaft 43 transverse direction, said rotating means, extend the second slide frame 23 Accordingly, the arm 30 is rotated in the horizontal direction, and the arm 30 is rotated in the standing direction as the second slide frame 23 is contracted. The arm 30 can be positioned outside by sliding the rotation shaft 43 outward. Further, when the arm 30 is erected by sliding the rotation shaft 43 inward, the height dimension can be reduced, and the swing of the arm 30 can be reduced when traveling on a general road. Further, the arm 30 can be rotated simply by sliding the second slide frame 23, and there is no need to provide a new drive mechanism or the like for rotating the arm 30 .

  In addition, this invention can be implemented in various aspects, without being limited to the said embodiment.

  For example, in the above embodiment, the first slide frame 22 is provided on the fixed frame 21 and the second slide frame 23 that slides further outward from the first slide frame 22 is provided. The base arm 31 or the like may be attached to the rotation shaft provided on the slide frame.

  Further, in the above embodiment, the slide of the expansion processing portion (61W, 62W) and the outer movement of the rotation shaft 43 are performed by one hydraulic cylinder 5, but the left and right directions are respectively made using different extension / contraction mechanisms. You may make it slide to. As such an expansion / contraction mechanism, for example, a wide variety of mechanisms such as a mechanism using a rack and a pinion, a mechanism using a screw screw, and an expansion / contraction mechanism using an air pump can be used.

  Furthermore, although the said embodiment demonstrated the agricultural machine 1 which performs a fertilization process and a sowing process, it is applicable also to a rice transplanter etc.

DESCRIPTION OF SYMBOLS 1 ... Agricultural machine 21 ... Fixed frame 22 ... First slide frame 23 ... Second slide frame 24 ... Pin 25 ... Hole 3 ... Marker 30 ... Arm 31 .... Base arm 31a ... Base end 32 ... Auxiliary arm 33 ... Marking part 41 ... Base end shaft 42 ... Link member 43 ... Turning shaft 5 ... Hydraulic cylinder 50 ... Rotating means 61, 61W ... fertilizer 62, 62W ... sowing part 63 ... hopper 64 ... disc opener 65 ... closer 66 ... pressure reducing roller 67 ... channel member 68 ... Ogre

Claims (4)

An arm that extends in the left-right direction with respect to the traveling direction, and that can mark the field with a marking portion provided at the lower end portion;
Rotation means for rotating the arm in the upright direction with the rotation axis as a fulcrum;
Equipped with a,
While providing the rotation shaft in a slide frame that can slide in the left-right direction ,
The marker is characterized in that the rotating means is configured to rotate the arm in the horizontal direction as the slide frame is extended, and to rotate the arm in the standing direction as the slide frame is contracted . Mounting structure. As the rotation means extends the slide frame, the arm is rotated in the horizontal direction by pulling the base end portion provided on the opposite side of the marking portion with respect to the rotation axis of the arm with the link member, 2. The marker mounting structure according to claim 1, wherein the arm is rotated in a standing direction by bending the base end portion and the link member so as to overlap with the contraction of the slide frame. A first slide frame is provided that can be extended in the left-right direction with respect to a fixed frame provided on the airframe, and has an expansion processing unit that performs processing on the expanded strip. The marker mounting structure according to claim 1, wherein the second slide frame having a shaft is further slid in the left-right direction. Mounting of a marker according to the first and the slide of the slide frame, according to claim 3 which is adapted to slide in one of the telescopic members in common with the slide of the second slide frame from the first slide frame from the fixed frame Construction.

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