JPH03277209A - Dropper mechanism in reaper - Google Patents

Abstract

PURPOSE:To surely receive crops conveyed from a rear side at a fixed position and prevent flowing of crops by making succeeding dropper bar possible to be located at receiving position of long culm crops at dropping long culm crops from a dropper bar. CONSTITUTION:Reaped crops A conveyed to a rear side are received by upper and lower dropper bars 91 and stored. Number of stored crops A is almost decided by an interval of pins 109 in a chain 48 and the pin 109 is revolved for 60 deg. around a star-like rotor 107 at a fixed pieces are stored, then a claw part material 94 is shaken through a shaking arm 108 and a grounding cable 96, thus the claw part material 94 inhibiting revolution of a revolving shaft 89 and an engaging cam 93 is removed from the engaging part 92. Thereby, the revolving shaft 89 is revolved by a weight of the crops A applying to the upper and lower dropper bars 91 and a fixed pieces of the crops A are dropped from the dropper bars in a bunch.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a dropper mechanism of a reaper used for harvesting long culm crops such as corn, maize, and sorghum.

(Prior Art) A reaping machine that cuts crops growing in a field near the base of the plant and transports the cut crops to the rear and side of the machine is disclosed in, for example, Japanese Utility Model Application No. 59-110530. It is known for.

The dropper mechanism of this reaper is provided with one upper and lower dropper bar on a rotating shaft that is rotatably supported by the reaper body, and engages with a pawl member on the rotating shaft to prevent rotation. An engaging part is provided, and a counting mechanism is provided that operates when a predetermined number of long culm crops are cut into the reaping machine body and transported to the dropper bar, and the claw member is moved to the engaging part by the operation of this counting mechanism. The dropper bar is moved once to allow the long culm crop to fall, and then returned to the original crop holding position by a spring.

(Intelligence M to be Solved by the Invention) In the prior art, the upper and lower dropper bars are one each and return each time the crop is released. The crops may get on the drone before they return, making it difficult to return and causing the crops to be washed away.

(Means for Solving the Problems) The present invention provides three or four upper and lower dropper bars on a rotating shaft at equal intervals in the circumferential direction, and the dropper bars are configured to rotate around the rotating shaft. When a drone releases a crop, the following drone perper can advance to the crop receiving position.

That is, the specific configuration for solving the problem in the present invention is as follows:
A rotating shaft 89 rotatably supported by the reaping machine body 8 is provided with an upper and lower dron barper 91, and an engaging portion 93 that engages with a claw member 94 to prevent rotation is provided on the rotating shaft 89, and the mowing shaft 89 is rotatably supported. The machine body 8 is provided with a counting mechanism 106 that operates when a predetermined number of long culm crops A are cut and transported to the dropper B-91. 93 and rotate the rotation shaft 89.
In the dropper mechanism of the reaper that is rotatable, three or four upper and lower dropper bars 91 are provided on the rotation shaft 89 at equal intervals in the circumferential direction, and the engaging portions 93 engage with claw members 94. Three or four engaging portions 92 are formed corresponding to each dropper bar 91, and one dropper bar 91 is provided with three or four engaging portions 92.
When No. 1 drops the long culm crop A, the following dron part stomer 91 can be placed at the long culm crop supporting position α.

(Function) The long culm crop A cut by the cutting mechanism 3 is sent to the dropper mechanism 16 by the vertical conveyance mechanisms 4 and 5.

Upper and lower dropper bars 91A provided on the rotation shaft 89.

For 91B, one of the three or four is at the crop holding position α.
The plant is located at and receives the Crop A sent to it.

The counting mechanism 106 provided in the transport mechanism 5 is activated when the number of transported crops A reaches a predetermined number, swings the claw member 94, and engages the engaging portion 92 of the engaging portion 93 provided on the rotating shaft 89. depart from.

As a result, the crop barper 91 is rotated by the weight of the crops, allowing the bundled crops to fall.

At the same time, the rotation shaft 89 rotates integrally, so the subsequent dropper bar 91 replaces the previous dropper bar 91 and reaches the receiving position α, and the engagement portion 93 also engages the subsequent dropper bar 91. engages with the pawl member 94 to stop the rotation of the rotation shaft 89.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

3.4.6 to 10 showing the overall configuration, 1 is a reaper, and in this embodiment, a cutting mechanism 3 that rotates around a vertical axis is provided at the front lower part of a hand-shaped traveling vehicle body 2 in the traveling direction. Above the cutting mechanism 3, a two-stage conveying mechanism 4, 5 is provided with a vertical interval in this example so as to be movable in circulation around a vertical axis.

The traveling vehicle body 2 is equipped with an engine 6, and is capable of transmitting power to a pair of left and right drive wheels 7, and is also capable of driving a cutting mechanism 3 and a plurality of stages of conveyance mechanisms 4 and 5, respectively, via a transmission mechanism.

A machine body 8 made of a bar or the like is attached to the front of the traveling vehicle body 2, and gauge wheels 9 are attached to the machine body 8 on the left and right in front of the cutting mechanism 3.
The divider mounting rods 10 are attached to the mounting rods 10 on the left and right front parts of the
1 is attached to each of the mounting rods 11, and a divider 1 is attached to each of the mounting rods 11.
2 is installed.

Each of the conveying mechanisms 4.5 is configured to convey the cut crop A rearwardly and laterally with respect to the traveling direction of the traveling vehicle body 2, and each of the conveying mechanisms 4.5 has a feeding start end 4A.
, 5A are located above the cutting mechanism 3, and the upper feeding starting end 5A projects forward in the traveling direction with respect to the lower feeding starting end 4A as shown by reference numeral B in FIG. ing.

The conveyance mechanisms 4 and 5 are parallel to each other in the vertical direction, and as shown in FIG.
Furthermore, the respective delivery ends 4B, 5B
is located on a substantially vertical plane. Then, the conveying section 4C between the feeding start ends 4^, 5^ and the sending end part 48.5B
, 5C is the sending end 4B, 5B is the feeding starting end 4A, 5A
The conveyor sections 4C and 5C are each provided with a guide mechanism 13.1 made of a bar material.
4 is installed.

Reference numeral 15 denotes a guide deck, and a groove-shaped path 15^ extending from the cutting mechanism 3 to one side, that is, to the rotational direction side of the cutting mechanism 3.
It supports the cut crop A and guides it along the transport sections 4G and 5C.

Reference numeral 16 denotes a dropper mechanism, which is provided at the upper part of the feeding end portions 4B and 5B on the feeding direction side. It is designed so that when a predetermined amount of crop A is held, its weight automatically windrows it onto the field.

Next, specific configurations of the cutting mechanism, conveyance mechanism, guide deck, drumper mechanism, etc. will be described in detail.

In FIG. 4, reference numeral 17 denotes a winding transmission mechanism, in which a belt 20 is stretched between a driving pulley 18 and a driven pulley 19 on the engine 6 side, and the driven pulley 19 is connected to the cutting mechanism 3 via a bevel gear mechanism 25. It is interlocked with the gear transmission mechanism 26 of the transport mechanism 4.5. And gear transmission mechanism 26
is built into a box 27, and the box 27 is attached to the front lower part of the vehicle body 2.

28 is a case housing a transmission mechanism for the drive shaft 7;
9 is its axle.

The cutter 3A is tilted forward as shown in Fig. 4, for example, about 15 degrees.
It is a rotary type having a blade portion on the outer periphery that is driven around an inclined vertical axis, and is rotated clockwise in the running direction as shown in Fig. 1θ.

The support 30 is erected from the fuselage 8, and the box 2
Supports 32 made of tubes are fitted over drive shafts 31 linked to gear transmission mechanisms 26 and are erected from 7, respectively, and each substrate 39.40 of the transport mechanism 4.5
2, and are supported in a forward-inclined manner parallel to each other at intervals in the vertical direction. In addition, the pillars 30, 32 and the board 39.
40 also constitutes a part of the fuselage 8.

In FIG. 3.4.10, the respective drive sprocket wheels 41.42 of the transport mechanism 4.5 are mounted on the drive shaft 31 and constitute the respective infeed starting ends 4A, 5A of the transport mechanisms 4, 5. Driven wheels 43°44,
and a driven wheel 45 constituting the delivery end portions 4B and 5B,
46 are respectively attached to the corresponding substrates 39, 40, and the wheels 41, 43, 45 of the transport mechanism 4 and the wheels 42, 44, 46 of the transport mechanism 5 are arranged in a triangular arrangement,
Each wheel 41, 43, 45 has a chain 47, and
A chain 48 is hung on each wheel 42, 44, 46, respectively.

Each chain 47, 48 has triangular protrusions 47^, 48A formed on its chain plate, respectively, and the crops can be transported by engagement of these protrusions 47A, 48A.

Further, each of the chains 47 and 48 is provided with retractable pawls 49 and 50 each having a thin tip at a predetermined pitch.

A guide plate 53.54 is attached to the inner peripheral surface of each chain 47.48.
are arranged on three sides thereof, and in the conveying parts 4C and 5C, the protrusions 47^, 48^ of the chains 47, 48 and the retracting pawl 49
．． 50 protrudes, but covers 55 and 56 are attached to other parts to prevent foreign matter from getting entangled.
Delivery guide bodies 57 and 58 are attached to both sides of the delivery ends 4B and 5B on the 5.56 side, respectively.

Guide mechanisms 13゜1 correspond to the conveyance sections 4C and 5C, respectively.
The guide mechanisms 13 and 14 are connected to the support column 5 from one side of the gauge wheel mounting rod lO connected to the fuselage 8.
9 is erected, and a mounting plate 60 is fixed to the upper end of the pillar 59. Further, another pillar 61 is erected to the mounting plate 60, and a mounting plate 62 is fixed to the upper end of the pillar 61.

A pair of supporting rods 5.66 of guide rods 63.64 are inserted into each mounting plate 60.62 so as to be freely movable in the axial direction.
Buffer springs 67, 68 are wound. Note that holes are formed in the support rod 5.66 at intervals in the length direction, and the strength of the force of the spring 67.68 can be adjusted through these holes.

Each support rod 5.66 has a guide rod 63.64
The guide rods 63 and 64 have guide parts 63A and 64A leading to the cutting mechanism 3 at one end, and guide parts 63B and 64B leading to the drone bar mechanism 16 at the other end. In the conveyance sections 4C and 5C of .
．． 50 is allowed to pass.

The guide deck 15 has the cutting mechanism 3 as the starting end and the drumper mechanism 16 as the ending end. Further forward of the guide deck 15, a guide plate 7 is attached to the mounting rod 10 of the gauge wheel 9 as shown in FIG.
4 is attached, and a mounting rod 10 etc. is used as a guide part for the lower part of the crop.

The guide deck 15 is provided corresponding to the lower part of the conveyor sections 4C and 5C, and is connected to a ramp on the side of the rotation direction of the cutting mechanism 3 toward the cutter 3 (arrow X in FIG. 6) via a guide plate 74. A triangular notch 85 is formed in the guide plate 36 in correspondence with the stepped portion 84 . That is, the receiving plate 86 of the guide deck 15 is formed into a groove shape so that the receiving plate 86 of the guide deck 15
It extends outward from the cutting mechanism 3 as a starting end corresponding to the lower part of C, and has a stepped portion 84 formed on the starting end side, and a blade portion that is the center of rotation of the canter 3A of the cutting mechanism 3. A notch 85 is formed on the rotation leading side of the outer periphery, and dust and other foreign matter can be discharged and escaped through the notch 85.

Thus, the cut crop A is supported by the stepped portion 84, and its tip is received by the drone bar mechanism 16.

As shown in FIGS. 1 to 5, the drumper mechanism 16 has a mounting plate 88 supported on the machine body via a support 87 corresponding to the delivery side of the delivery ends 4B, 5B of the transport mechanisms 4, 5. .

Reference numeral 89 denotes a rotation shaft formed of a hexagonal rod, which is rotatably supported by a support 90 fixed to the mounting plate 88. Three dropper bars 91A and 91B are attached to the upper and lower ends of this rotation shaft 89, respectively, in the radial direction. It is installed protrudingly. The three upper and lower dropper bars 91A and 91B are positioned at equal angles in the circumferential direction of the rotating shaft 89, and the upper and lower dropper bars 91^ and 91B may correspond to each other in the same phase. They are slightly staggered and are arranged so that the upper and lower two can simultaneously hold the crop A in a stable position.

One of the three upper and lower dropper bars 91 is located at the crop support position α where it receives the crop A conveyed from the conveyance mechanism 4.5, and the subsequent tokotsuba at the rear of the rotation axis 89 in the rotation direction - The bar is located above the dropper bar at the crop receiving position α and is waiting at a position that does not obstruct the loading of the crops.

Engaging portions 93 having engaging portions 92 are attached to the rotating shaft 89 at equal intervals in the circumferential direction, and claw members 94 that removably engage with the engaging portions 92 are attached to the mounting plate 88. It is pivoted via 95.

The claw member 94 has an inner cable 97 of a Bowden cable 96 connected to its tip side, and the cable end fitting 9
The coil spring 9 fitted into the inner cable 97 between the coil spring 9 and the inner cable 97
The inner cable 97 is urged to engage with the engaging portion 92 by a resilient force of 9, and is detached from the engaging portion 92 by pulling the inner cable 97.

A protrusion 100 is provided on the distal side of the claw member 94, and this protrusion 100 serves as a knob when manually rotating the claw member 94, and also serves as a knob for locking the locking tool 101 when the tron bar bar 91 is not rotated. It is a hook that engages. That is, a support 102 is attached to the mounting plate 88, and a square frame-shaped locking tool 101 is pivotally supported on this support 102. By engaging with the claw member 94, rotation of the claw member 94 is prevented.

The support 102 has a stopper 10 formed of a bolt.
3 are screwed together to set the position of the claw member 94 in the engagement direction.

On the other hand, a counting mechanism 306 is provided within the transport mechanism 5, and this counting mechanism 106 includes a star-shaped rotating body 107 pivotally supported on the substrate 40, a swing arm 108, and the like.

The star-shaped rotating body 107 engages with bins 109 protruding from the chain 48 at regular intervals, and as the chain 48 that transfers the work vyJA circulates, the star-shaped rotating body 107 rotates at a constant angle. move. Since the star-shaped rotating body 107 has 6 protrusions a, 60
° Rotate.

An engagement pin 110 is protruded from each protrusion a of the star-shaped rotating body 107 and can be engaged with one end of the swinging arm 108, so that the star-shaped rotating body 107 rotates by 60'. , swinging the swinging arm 208 via the engagement pin 110.

The other end of the inner cable 97 of the Bowden cable 96 is connected to the other end of the swinging arm 108, and the swinging of the swinging arm 108 moves the claw member 94 from the engaging portion 93 via the inner cable 97. When the bottle 109 swings in the disengagement direction and separates from the star-shaped rotary body 107, the claw member 94 is urged toward the engaging portion 93 by the coil spring 99, and the engaging portion 93 is engaged on the rear side in the rotating direction. It becomes possible to engage with the portion 92.

Describing the operation of the dropper mechanism 16 in detail, the harvested crops A sent rearward by the upper and lower transport mechanisms 4.5 are received and stored by the upper and lower dropper bars 91A and 91B.

The number of stored crops A is determined by the interval between the bins 109 on the chain 48, and when a predetermined number of crops A are accumulated, the bins 109 rotate the star-shaped rotating body 107 by 60 degrees, and the swinging arm 108 and Bowden cable 96 The pawl member 94 is swung through the cylindrical member 92, and the pawl member 94, which has been blocking the rotation of the rotating shaft 89 and the engaging portion 93, is disengaged from the engaging portion 92.

As a result, the rotation shaft 89 is moved by the weight of the crop A applied to the upper and lower dropper bars 91, as shown by the arrow I in FIG. 1.5.
The crop A is rotated in 11 directions, and a predetermined number of crops A are bundled and dropped to the ground from the dropper bar 91.

Since three dropper bars 91A and 91B are provided each, the dropper bar 91 that was holding crop A
When the dropper bar 91 rotates downward, the subsequent dropper bar 91 advances to the crop holding position α behind the transport mechanisms 4 and 5, and when the bin 109 completes passing through the star-shaped rotating body 107, The claw member 94 is biased by the engaging portion 93, and the subsequent engaging portion 92 rotates as the rotating shaft 89 rotates.
and locks the dropper bar 91 from rotating.

Note that the return position of the swing arm 108 is set by the stopper 112, and the return operation is performed by the coil spring 99, but a unique return spring may be provided.

FIG. 11 shows a modification of the dropper mechanism 16,
The claw member 94 is made swingable by an eccentric cam 116 provided on an output shaft 115 of a motor 114, and a counter sensor 117 is used in the counting mechanism 106.

This counter sensor 117 is an electric sensor that is provided midway in the transport direction of the transport mechanism 4.5 and counts the number of passing frames.The set number of frames can be changed, and when the set number of crops A passes through, The motor 114 is operated once to swing the pawl member 94 once against the tension spring 118, during which the dropper bar 91 is rotated approximately 120 degrees.

By counting the number of passing crops with the counter sensor 117, the amount of convergence of the windrowed crop bundle can be kept constant, making it easier to carry, and if the crops are planted at regular intervals, they will be harvested first. To the side of the bundle that I picked up and dropped,
It becomes possible to drop them at approximately the same position or at different positions in the running direction.

The present invention is not limited to the embodiments described above, and can be modified in various ways. For example, four dropper bars 91 may protrude in the circumferential direction of the rotating shaft 89 (correspondingly, the number of engagement parts 92 of the engagement part 93 will be four), or one or three dropper bars may protrude in the axial direction. The number of bins 109 with respect to the chain 48, the number of protrusions a of the star-shaped rotating body 107, the number of engagement bins 110, etc. may be selected or changed as appropriate, and the number of bins 109 with respect to the chain 48, the number of protrusions a of the star-shaped rotating body 107, the number of engagement bins 110, etc. may be appropriately selected or changed. The mechanism 106 may be placed in the transport mechanism 4.

Further, in a modified example, the claw member 94 is formed of an iron core of a solenoid, and the claw member 94 is configured to move in the direction of disengaging from the engaging portion 92 in response to an actuation signal from the counter sensor 117. Engaging portion 9 with eccentric cam 116
2 and may be configured to be biased by a spring.

(Effects of the Invention) According to the present invention detailed above, each of the upper and lower dropper bars 9
1 are provided on the rotation shaft 89 at equal intervals in the circumferential direction, 3 or 4;
The engaging portion 93 has three or four engaging portions 92 that engage with the claw members 94, corresponding to each dropper bar 91, so that when one dropper bar 91 drops the long culm crop A. Since the subsequent dropper bar 91 can be placed at the long culm crop holding position α, even if the one that was supporting the long culm crop A rotates to release the crop, the dropper bar 91 can The succeeding dropper bar can immediately advance to the crop-supporting position α, and there is no need for time for the crop-supporting dropper bar to return to its original position, so the crops transported later can be reliably received at the predetermined position. It is possible to prevent crops from being washed away like in the past.

[Brief explanation of drawings]

Figures 1 to 10 show examples of the present invention, with Figure 1 being an explanatory diagram of the main parts, Figure 2 being a sectional view taken along the n-ff line in Figure 1, and Figure 3 being a plan view of the main parts. Figure 4 is a side view of the main parts, Figure 5
The figures are a sectional view taken along the line V-V in Fig. 4, Fig. 6 is a perspective view of the cutting mechanism and conveyance mechanism, Fig. 7 is an overall perspective view of the reaper, Fig. 8 is an overall side view of the reaper, and Fig. 9 is a perspective view of the cutting mechanism and conveyance mechanism. The figure is an overall plan view of the reaper.
FIG. 10 is a plan view of the lower conveyance mechanism, and FIG. 11 is an explanatory diagram showing a modification of the present invention. l...reaper, 3...cutting mechanism, 4.5...transport mechanism, 8...body, 16...dropper mechanism, 89
...Rotation axis, 91...Dropper bar, 92...
Engaging portion, 93... Engaging portion, 94... Claw member, 96...
... Bowden cable, 106 ... Count mechanism, 07 ... Star-shaped rotating body, 08 ... Swing arm. Patent applicant Kubota Iron Works Co., Ltd. Kubota Seiki Co., Ltd. Mimi Tomaji

Claims (1)

[Claims] (1) Upper and lower dropper bars (91) are provided on a rotating shaft (89) rotatably supported by the reaper body (8), and the claw members (94) are engaged with the rotating shaft (89). An engagement wheel (93) that prevents rotation is provided, and the long culm crop (A) is cut by the reaper body (8) and transported to the dropper bar (91).
) is activated when the number reaches a predetermined number (1
06), and the claw member (94) is disengaged from the engagement wheel (93) by the operation of the count mechanism (106), and the rotation shaft (89) is made rotatable. Three or four upper and lower dropper bars (91) are provided on the rotation shaft (89) at equal intervals in the circumferential direction, and the engagement wheel (93) has an engagement portion (92) that engages with the claw member (94). 3 or 4 are formed corresponding to each dropper bar (91), and when one dropper bar (91) drops the long culm crop (A), the following dropper bar (91) drops the long culm crop (A). A dropper mechanism for a reaper, characterized in that it can be placed in a holding position (α).