JPH02119702A - Working machine-connecting apparatus in movable farm machine - Google Patents

Abstract

PURPOSE:To provide the title apparatus so designed that a planting part is supported in its longitudinal and transverse directions by both upper and lower supporting devices provided in the vertical direction of a hitch member, thereby facilitating attaching-detaching operation and preventing play in the transverse direction. CONSTITUTION:A planting part is equipped with a supporting member 24 of such a structure that transverse frames 42 are spanned between a plurality of longitudinal frames, and the transverse frames 42 are hooked and supported by the upper supporting device 28 provided in the vertical direction of a hitch member 26, while the longitudinal frames by the lower supporting device, thus carrying the planting part in longitudinal and transverse directions. Thereby, only operation of both the upper and lower supporting devices will readily attach or detach the planting part.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a work machine attachment/detachment device, and more particularly to a work machine attachment/detachment device that is attached to a hitch member provided on a traveling machine body such that it can be raised and lowered.

(b) Conventional technology In general, mobile agricultural machines, such as riding rice transplanters, are
As shown in Publication No. 1-154722, a bottle member passed toward the planting tank is carried by a traveling machine hitch installed at the tip of a parallel link provided on the traveling machine so that it can be raised and lowered so as to be scooped up from below. As a result, the planting section is attached to the traveling machine body so as to be able to move up and down, and the machine is steered within the field while driving a large number of blanks provided in the planting section, so that seedlings can be planted in the field. It is configured.

Recently, riding rice transplanters have narrow wheels and are light in weight. 1 Intermediate field management work like the one I have been doing
There is a demand for additional fertilizing and disinfection work other than rice planting work in paddy fields by installing deep fertilizer machines, disinfection machines, etc. When changing to another working machine or re-planting rice, it is necessary to be able to easily attach the removed planting part.

(C) Problems to be Solved by the Invention However, the planting section of the above-mentioned conventional rice transplanter is supported only by a structure that allows the bin member passed in the horizontal direction to be scooped up from the top side. It is relatively easy to attach and detach the planting section.The structure is such that it cannot support the movement of the planting section from side to side.For this reason, the seedling stand It is possible to prevent lateral play caused by the movement of the center of gravity in the lateral direction, which frequently occurs when the vehicle moves in the direction of lateral force.
Therefore, there is a risk that proper planting (-1 digit work) will not be possible.

Therefore, the present invention supports the planting part in the vertical and lateral directions by means of upper and lower support devices installed in the lower direction of the hitch member, thereby facilitating attachment and detachment operations and making it easier to attach and detach the planting part in the lateral direction. It is an object of the present invention to provide a working part attachment/detachment device configured to prevent the above-mentioned problem from occurring.

(d) Means for Solving the Problems The present invention was made in view of the above problems, and as shown in FIGS. 1 and 2, for example, a traveling aircraft (5)
(See Figure 10) A hitch member (26
), a mobile agricultural machine (1) is provided with a working machine (12) attached to the working machine (12), the working machine (12) is equipped with a plurality of vertical frames (2
4a), (24b) and the vertical frames (24a), (2
4b) Horizontal fleno \(
42), and further engages and supports the horizontal frame (42) at a position of the hitch member (26) corresponding to the horizontal frame (42). (28), and the vertical frame (24a) below the upper support device (28).
), (24b), the lower support bags N (46a), (46b) engage and support the vertical frame.
), and the work machine (12) is supported by the support device (
2g) and lower support devices (46a, ), (46b) to support the device in the vertical and horizontal directions.

(ili) Effect Based on the above configuration, mobile agricultural machinery (
When removing the working machine (12) from 1), operate the 1-support device (28) and lower support bags W (46a), (46b) to remove the horizontal frame (42), vertical frame (24a),
(24b) is released. In this state, the traveling aircraft (5)
When moving forward, the upper support device (28) to the horizontal frame (42) or the lower support bag rw, (46a), (46b
), the vertical frames (24a) and (24b) are each completely removed, and the work implement (12) is therefore removed from the traveling body (5).

On the other hand, when attaching the work implement (12) to the traveling body (5), keep the work implement (12) in a grounded state and attach the hitch member (26) to the work implement (12) as appropriate. The traveling body (5) is moved after being raised, lowered, and adjusted to a height of .

Then, the horizontal frame (42) of the work equipment support member (24)
1 - the support device (28) is engaged and the vertical frame (
24a), (24b) have lower support bags 'W, (46a), (
46b) is engaged. In this state, by operating the support device (28) and the lower support devices (46a) (46b) to the lock position, the upper support device (28)
) and lower support bag W (46a).

(46b) engages and supports the horizontal frame (42) and the vertical frames (24a) and (24b), respectively, so the working machine (12) is supported in the vertical and horizontal directions by the traveling machine ( 5).

Note that the symbols in parentheses do not limit the configuration in any way.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 10, the riding rice transplanter 1 has a running body 5 supported by front wheels 2 and rear wheels 3. A C engine 7 is mounted, and a driver's seat 10 is arranged such that a seat 9 is located between the front and rear wheels. Furthermore, an upper link lla is provided at the rear of the traveling aircraft 5.
A planting section 12 is supported so as to be able to rise and fall freely via a parallel link device 11 consisting of a lower link 11F), and a large number of blanks 13..., floats 15, and seedling stands 16 are installed in the planting section 12. has been done. And the traveling aircraft 5
A hydraulic cylinder 2 is installed between the front transmission case 17 and the planters 1 to 19 fixed to the parallel link 11.
0 is arranged, and the planting section 11 moves up and down based on its expansion and contraction. In addition, a transmission shaft 21 extends rearward parallel to the frame 22, and is further connected to the planting part 12 via a universal joint 23 and a propeller shaft 25. Note that 14 in the figure is This is a stand used when the planting section 12 is grounded, stored, and kept at °C.

As shown in FIGS. 8 and 9, a hitch member 26 is installed at the rear end of the parallel link device 11, and the planting section 12 is connected to a planting section attached to the hitch member 26. Rolling fulcrum shaft 27 installed at the lower end of the support member 24
It is supported so as to be swingable in the left and right directions. Further, a planter case 29 is disposed on the back side of the seedling top stand 16, and a planter case 31 is connected via a shaft I-case 30 extending left and right from the lower part of the seedling case 29.・It is arranged. Furthermore, the planting section 12
A stay 32 extends in the left-right direction, and the stay 3
A °C post 33.33 is erected and fixed on the left and right parts of the 2, and the planting part 12 is supported so as to be slidable in the left and right direction by a slide piece etc. provided at the upper end of the post 33.33. ing. Further, a propeller shaft 25 (FIG. 10) extends from the traveling body 5 to the triso case 29, and a slide bar 35 protruding in the left-right direction is connected to the frame 37 of the seedling stand 16 via a racket 36. ing.

In addition, the planting part support member 24 is shown in FIGS. 2, 8, and 9.
As shown in the figure, vertical frames 24a, 2 extending in the vertical direction
4b, and between the vertical frames 24a and 24b, horizontal frames 42, 44, 45 are installed that extend in the horizontal direction, and furthermore, in the center of the horizontal frame 42, there are installed horizontal frames 42, 44, 45 that extend in the vertical direction. A positioning pin 43 is fixedly provided. The vertical frames 24a and 24b are formed to be slightly inclined toward the traveling body when viewed from the side (see FIG. 6). In addition, between both upper ends of the planting part support member 24 and the frame 37, L part rolling regulating sublinks 39 and 39 are stretched, and furthermore, between the slightly lower ends of the center part of the support member 24 and the stay 32, A lower rolling regulating spring 40.40 is stretched between them, and when the planting part support member 24 is attached to the hitch member 26, the planting part main body is connected to the low link fulcrum shaft 27.
When removed from the hitch member 26, the planting part support member 24 freely swings around the low link fulcrum shaft 27 relative to the planting part main body including the float 15. is configured to do so.

On the other hand, the hitch member 26, as shown in FIG. 1 and FIG. Furthermore, the hitch member 26 has a side view shape that follows the shape of the inclined planting portion support member 24.

Further, the hitch member 26 has a notch 26C formed above and a notch 26d formed below, and a positioning member 41 is fixed between these two plates 26a and 26b.

As shown in FIGS. 1 and 5, the positioning member 41 is made of a U-shaped plate in side view, has an engaging portion 41b inside the U-shape, and has a distal end. Part 4
The positioning member 41 is formed so as to gradually widen outward, and the positioning member 41 has vertical grooves 4], d formed in its center in a plan view, and the vertical grooves 41. d
is connected to a widening section 4]c that gradually widens outward from its middle portion. Therefore, the positioning member 41
The horizontal frame 42 is received in the horizontal direction by the engaging part 41b, and the positioning pin 4 is guided from the widened part 41c and received in the vertical groove 41d, so that the planting part support member 24 is supported in the vertical and horizontal directions. do.

In addition, as shown in FIGS. 3 and 7, the hitch member 26
A frame 48 is fixed to the lower end of the frame 48 so as to face laterally, and a lower support device 46 is disposed on the frame 48 at a position corresponding to the frames 24a and 24b of the planting section support member 24.
a and 46b are installed. Then, lower support equipment
46a and 46b each have a receiving member 47 formed in a U-shape when viewed from the side, and a stop member 50 supported on the fulcrum 49 so as to be rotatable in the horizontal direction is provided inside the receiving member 47. are doing. Further, the stop member 50 has a number attached to one end of the splinter 51 on its protrusion 50d,
When released, it is urged to rotate about four fulcrums toward the position shown by the two-dot chain line in FIG. stop"(
, the receiving member 47 has a cutout portion 47a formed to widen outward in a plan view,
Further, the stop member 50 has a push-button portion 50a which is suppressed and rotated from the position indicated by the two-dot chain line in FIG. And due to this rotation, the vertical frame 24 inches ↓ (or 2
4b) from the outside so as to wrap around and engage with the claw portion 50b. Further, the frame member 47 is formed with a hole 47b penetrating from below, and the stopper member 50 is formed with a hole 50c to match the hole 47b.

On the other hand, as shown in FIGS. 1, 7, and 9, the positioning member 4 is provided on both upper and outer sides of the hitch member 26.
1 and 2. Two rotational engagement members 55 and 55 constituting the support device 28 are rotatably supported by a support shaft 52, and the rotational engagement members 55 include An engaging portion 55a that engages with the horizontal frame 42 is formed. Furthermore, these rotary engagement members 55,55 are shaped like a 21-shaped hash 1-ru member 5.
4, and by rotating the heel member 54, the rotation engaging member 55. F') 5 rotates while holding the hitch member 26 from both sides.

Further, one end of a crank-shaped link member 53 is fixed to one of the rotary engagement members 55.55, and one end of a link member 56 or a pin 57 is fixed to the other end of the link member 53.
It is pivotally connected. Further, a shaft member 59 is installed slightly below the center of the hitch member 26 so as to pass through it in the left-right direction, and the center portion of the rotation member 60 is supported at both ends of the shaft 71 to the member 59. It is installed. One end of the rotating member 60 is slidably connected to the other end of the link member 56, and a splinter 61 is fitted to the other end. is brought into contact with the rotating member 60, and the other end is brought into contact with a stopper 62 provided at the center of the link member 56.

Further, a U-shaped guide member 63 is fixedly installed on the upper part of the receiving member 47, and the guiding member 63 is slidable in the vertical direction, and a splinter 65 is used to move the receiving member 4 downwardly.
A pin 66 that is biased in a direction that penetrates through the hole 7 is installed. Further, the other end of the rotating member 60 is pivotally connected to one end facing upward of the pin 66, and the spring 61
Since the spring constant of the splinter 65 is set larger than that of the splinter 65, when the handle member 54 is pulled to the left in FIG. 9 and rotated counterclockwise, the rotational engagement member 55
．． 55, the horizontal frame 42 is released, and the link member 5 is
Rotate the co-moveable member 60 counterclockwise via the splinter 61 using the 6-to-1 hemper 62, and then slide the pin 66 upward against the splinter 65 to insert it into the C hole. 500 is released, and in conjunction with the release operation of the upper support device 28, the lower support devices 46a and 46b are released. Further, when the handle I/wing member 54 is rotated clockwise, the rotation engagement members 55 and 55 are rotated clockwise to move the link member 56 upward, thereby causing the splinter 61 to move upward. Therefore, the cooperating member 60 is released, the pin 66 is moved downward by the urging force of the splinter 65, and the pin 66 is moved downward along with the hole 47b of the receiving member 47 and the hole 50b of the stopper member 50.
The hole 50b is fixed in that position, and the lower support devices 46a, 4 are inserted in conjunction with the locking operation of the support device 28.
Lock 6b.

On the other hand, a U-shaped bracket 67 is fixedly attached to the inside of the handle member 54, and an I-shaped operating member 70, which is urged downward by a link 69, is attached to the bracket 67. One end is slidably fitted. Further, at the upper end of the hitch member 26, as shown in FIG.
71. A positioning member 71 having a shape b is fixedly provided. Therefore, by grasping the other end of the operating member 70 together with the brush 1 health member 54, one end of the operating member 70 is connected to the engagement notch 71a,
71b, and remove the hash 1-ru member 54.
After rotating the operating member 70 together with the operating member 70, release the operating member 70 and connect the end to the engaging notch 71a.

71b, the horizontal frame 42 received in the engaging portion 41b of the positioning member 41 is moved to the rotating member 55.
．． The horizontal frame 42 can be held in an engaged and supported state at 55, or held in a released state.

Further, as shown in FIG. 1, the above-mentioned support device 28 and the lower support devices 46a, 46b are installed with their positions shifted in the front-rear direction of the fuselage along the inclined shape of the raised section support member 24. When the planting part 12 is attached, the planting part support member 24 supported by the positioning member 41 effectively acts on the moment due to the weight of the planting part 12 around the horizontal frame 42, and the vertical frames 24a, 24b Below -F support: n4
6a, 46b in a natural state, the mounting device body is configured as a compact 1~, and it is designed to improve workability during mounting.

The present embodiment has the following configuration, so that the riding rice transplanter 1 can be operated by the operator to fill the blanks 13...
The mat seedlings mounted on the seedling table 16 are scraped off by a predetermined amount and planted on the river surface.

In order to perform work other than rice transplantation, when installing other work equipment such as a deep topdressing machine, disinfection machine, or cultivator in place of the planting section 12 for intermediate management work, first operate the lift operation lever. The hydraulic cylinder 20 is operated to maintain the planting plant 2 with °C and C at a height that does not touch the ground. In this state, the heel 1 health member 54 is manually rotated counterclockwise in FIG. 9. Then, the rotational engagement members 55 and 55 rotate in the same direction, and the horizontal frame 42 is released from the engagement portion 55a, as shown in FIG. Furthermore, the link member 56 is pressed downward in the figure by the rotating member 53 that rotates together with the rotating engagement member 55. At first, either the tip of the link member 56 or one end of the rotating member 60 is sliding, or the stopper 62 comes into contact with the link 61, and the stopper 62 pushes down the link 61, causing the link to move simultaneously. Part 6
Rotate 0 counterclockwise in Figure 1. At this time, since the spring constant of the spring link 61 is set to be larger than that of the spring 65, the spring link 61 tries to move in the -F direction in the figure against the pin 66 or the spring link 65. At this time, the pin 66 becomes difficult to come out due to surface pressure from the hole 500 of the stopper member 50 trying to rotate to the return position by the return splinter 51, or the vertical frame 24a
, 24b, etc. by slightly shifting the position of the stopper member 50 to reduce the surface pressure.
c to release the stopper member 50. As a result, the stopper member 50 is rotated by the return link 51 toward the position shown by the two-dot chain line in FIG. 3, and its claw Sob releases the vertical frames 24a, 24b. Therefore, the planting section 12
The planting part support member 24 constituting the plant is suspended by engaging the horizontal frame 42 with the positioning member 41 while the vertical frames 24a and 24b are released from below the horizontal frame 42. In this state, the traveling aircraft 5
The propeller shaft 25 connected to the plant and the wires to the markers (not shown) are removed, and the hydraulic cylinder 20 is operated to ground the planting section 12. Then, from this state, the traveling body 5 is moved forward, and the horizontal frame 42 is removed from the positioning member 41, and the vertical frame 24/1 is removed from the lower support devices 46a, 46b.
, 24b and completely remove the planting section 12 from the traveling body 5.

On the other hand, when attaching the planting section 12 to the traveling machine 5 for rice-transplanting work, the traveling machine 5 is first moved backwards to approach the planting section 12 which is in contact with the ground with the stand 14 erected. . Then, actuate the hydraulic cylinder 20 as appropriate,
By visual measurement, the positioning member 41 is adjusted to a position where the widened portion 41c of the positioning member 41 touches the positioning pin 43 of the horizontal frame 42, and then stopped. From this state, the traveling body 5 is set in neutral and the body 5 is manually moved further backward. Then, while receiving the horizontal frame 42 along the positioning member 41 or its tip 41a, the positioning pin 43 is guided into the vertical groove 41d along the widened portion 41c. On this occasion,
Since the planting section 12 is in the grounded state, the planting section support member 24
The positioning member 41 and the positioning pin 43 can be freely swung about the rolling fulcrum shaft 27 with respect to the planting section main body by the upper low link regulating spring 39.39 and the lower low link regulating spring 40.40. Even if the position is slightly deviated, the deviation is corrected by the spring 39.
．． 40, so that the positioning pin 43 is easily guided and engaged with the longitudinal groove 41d along the widened portion 41c.

Then, when the handle part O J' 54 is manually rotated clockwise in FIG.
, 55a, and the horizontal frame 42 is firmly engaged and supported by the positioning member 41. In this state, the rotating member 53 rotates in the J1 direction together with the handle member 54.
As a result, the link member 56 is moved forward, and the lever 62 releases the spring 61. Therefore, the pin 66 is pushed downward by the spring 65, that is, the stop 1, 1' 50
In this case, the planting portion 12 is still in contact with the ground and the vertical frame 2
4a and 24b are not engaged with the lower support devices 46a and 46b, and the stop member 50 is set in the position shown by the two-dot chain line in FIG. The tip is in contact with the -L surface of the stopper member 50. Furthermore, at this point, the propeller shaft 21, which had been removed from the traveling aircraft 5 side, and the wires to the marker are connected.

Then, the upper support device 28 is activated by operating the hydraulic cylinder 2o.
The planted portion 12, which is engaged and suspended using a chisel, is raised to an appropriate height. Then, the vertical frames 24a, 24b are formed to be inclined, and the lower position of the vertical frame is offset in the longitudinal direction of the aircraft with respect to the horizontal frame 42, and these horizontal frames 42 and vertical frames 24a, 24
Upper support device 28 and lower support devices 46a, 46 that receive b
The upper support device 28
Since a clockwise moment in FIG. 1 centering on the horizontal frame 42 acts on the planting section 12 suspended from the horizontal frame 42, the vertical frames 24a and 24b move along the notch 47a of the receiving member 47 to support the lower support device 46a, 46b can be easily accommodated.

As a result, the stop member 5o returns its pressing portion 50a to the spring 5 while being pressed by the frames 24a and 24b.
1, the frame 2 is rotated toward a position not shown by the solid line in FIG.
4a and 24b are engaged and locked by the claw portion 50b. The pin 66, which has been waiting while sliding on the upper surface of the stopper member 50, is inserted into the hole 50c immediately after the pin 66 moves to a position where the hole 50c overlaps with the hole 47b.

Therefore, the planting part support member 24 is supported in the vertical direction by the upper support device 28 above it, and in the horizontal direction by the lower support devices 46a and 46b below. 12 is firmly attached to the hitch member 26, that is, the traveling body 5, so that the planting portion 12 is reliably prevented from shaking in the vertical direction as well as in the horizontal direction, and the planting portion 12 is particularly susceptible to the effects of horizontal play. 12 workability is improved. The riding rice transplanter 1 can easily and reliably attach and detach the planting section 12, and can also easily attach and detach other working machines other than the planting section 2, and can be used for various purposes other than rice planting. Can handle the work.

(g) Effects of the invention As explained above, according to the present invention, the working machine (12)
1-Support part! (28) and lower support device (46/l
) and (46b), the upper support device (28) and the lower support device (4
6a) and (46b), the work implement (12) can be easily attached and detached, and when attached to the traveling body (5), the work implement support member (24) or its longitudinal and lateral directions can be easily attached and detached. Since it is firmly supported, it is possible to reliably prevent both vertical and horizontal clattering, thereby improving the accuracy of the device.

[Brief explanation of drawings]

Fig. 1 is a side view showing the work machine attachment/detachment device according to the present invention, Fig. 2 is a front view showing the planting part support member, Fig. 3 is a plan view showing the lower support device, and Fig. 4 is the hitch member. FIG. 5 is a plan view showing the positioning member; FIG. 6 is a side view showing the inclined shape of the vertical frame;
Figure 7 is a diagram of the work equipment attachment/detachment device seen from the traveling machine side, Figure 8
The figure is a view of the planting section seen from the rear, and FIG. 9 is a side view showing the connected state of the parallel link and the planting section. FIG. 10 is an overall side view showing a riding rice transplanter to which the present invention is applied.

Claims (1)

[Scope of Claims] 1. In a mobile agricultural machine in which a working machine is attached to a hitch member provided on a traveling machine body so as to be able to rise and fall freely, the working machine has a plurality of vertical frames and a horizontal direction between the vertical frames. A work equipment support member having a horizontal frame provided across the horizontal frame is installed, and an upper support device for engaging and supporting the horizontal frame is installed at a position of the hitch member corresponding to the horizontal frame, and A lower support device that engages and supports the vertical frame is installed below the support device at a position corresponding to the vertical frame, and the work machine is supported in the vertical and lateral directions by the upper support device and the lower support device. A work equipment attachment/detachment device for a mobile agricultural machine, characterized in that it is configured to be carried on a mobile agricultural machine.