JPH11196612A - Installation of attachment and installed structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for installing an attachment and the installed structure which allow to install the attachment easily and quickly by an easy labor without using a lifting machine, even to a main machine having no lifting link, while requiring limited modification of the main machine. SOLUTION: This method involves slanting an attachment 3 from the self- standing position; forming a first linking section 7 by combining first linking pieces 5, 6 provided on the attachment 3 and main machine 4 sides; rotating the attachment 3 upwards on the first linking section 7 as the fulcrum; and forming a second linking section 10 by combining second linking pieces 8, 9 provided on the attachment 3 and main machine 4 sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment mounting method and a mounting structure for attaching an attachment such as a working machine to a machine such as a tractor by a simple operation.

[0002]

2. Description of the Related Art For example, when an attachment such as a fertilizer, a seed sowing machine or a pest control machine is directly mounted on a machine such as a riding rice transplanter, a riding management machine, or a tractor, three points provided in advance on the machine are used. It is common to use a lifting link for attachment attachment such as a hitch. When the attachment is directly mounted on a machine not provided with such a lifting link, since the attachment may have a considerable weight exceeding 100 kg, the attachment may be lifted by human power. Hold for a predetermined time,
It is practically impossible to perform the connection work to the machine, and a lifting machine such as a forklift or a chain block has to be used.

[0003]

However, providing a full-fledged elevating link for attaching an attachment to the entire machine has a problem in terms of cost. In addition, it is not advisable to prepare and operate the lifting machine as described above at the time of attaching the attachment, both in terms of cost and labor.

The present invention has been made in view of such circumstances, and an attachment can be easily and quickly attached to a machine having no elevating link with little labor without using a lifting machine. An object of the present invention is to provide an attachment mounting method and a mounting structure which require less modification of the machine.

[0005]

According to a first aspect of the present invention, there is provided an attachment mounting method according to the first aspect of the present invention, wherein the attachment is tilted from a self-standing state, and the attachment and the machine are paired. The first connection part pieces provided in the above manner are combined with each other to form a first connection part, and the attachment is rotated upward with the first connection part as a fulcrum, so that the attachment side and the main body side are paired. The second connecting portions provided in the above are combined with each other to form a second connecting portion.

According to the method of the present invention, in attaching the attachment to the machine, the attachment is tilted from an independent state, and the attachment is moved upward with the first connecting portion as a fulcrum. What is necessary is just to perform the operation of rotating. Since these operations can be performed by the operator paying only a part of the weight of the attachment, even when the attachment is a heavy object, compared to the operation of lifting the entire attachment as it is by human power. Requires less effort. Therefore, according to the method of the present invention, the attachment can be easily and quickly attached with little labor without using a lifting machine and even with the machine having no elevating link for attachment attachment.

[0007] Further, since it is only necessary to provide the first connecting part in the main body in a pair with the first connecting part on the attachment side, the attachment is mounted using the existing main body as it is. This machine can be easily manufactured.

[0008] The method of the present invention described in claim 2 is a method according to claim 1.
Wherein the attachment has a detachable bottom frame, and the bottom frame is detached from the attachment after the second connecting portion is formed. If you do this,
The attachment after installation becomes compact, which is preferable.

According to a third aspect of the present invention, in the attachment mounting structure according to the present invention, the first connecting portions that match each other are provided as a pair on the attachment side and the machine side by tilting the attachment from a self-standing state. ,
By rotating the attachment upward with the first connection part formed by the combination of the first connection part pieces as a fulcrum, the second connection part pieces that match each other are on the attachment side and the machine side. It is provided in pairs.

In this case, when attaching the attachment, the attachment is inclined, and the first connecting piece on the attachment side and the first connecting piece on the machine side are combined with each other to form Form a first connection. Next, the attachment is rotated upward with the first connection portion as a fulcrum, and the second connection portion piece on the attachment side and the second connection portion piece on the machine side are connected so as to coincide with each other. Let me know. In this way, the attachment is formed at least at two places of the first connection portion formed by the combination of the first connection portion pieces and the second connection portion formed by the combination of the second connection portion pieces. It is firmly fixed to the machine.

As described above, according to the third aspect of the present invention, in attaching the attachment, the attachment is inclined, and the attachment is rotated upward with the first connecting portion as a fulcrum. Since it is sufficient to perform the work to be performed, less labor is required as compared with the work of lifting and holding the entire attachment. Therefore, the attachment can be easily attached manually to the machine having no attachment mounting elevating link without using a special lifting machine as in the related art.

In addition, since it is only necessary to provide the first connecting piece and the second connecting piece on the main unit side, the main unit can be easily manufactured using the existing main unit as it is. be able to.

According to a fourth aspect of the present invention, there is provided the attachment mounting structure according to the third aspect, wherein the attachment has a grounding portion which is grounded when the attachment is inclined from an independent state. is there. With this configuration, the attachment can be maintained in the inclined state with a small amount of labor, and thus the attachment work of the attachment is facilitated.

According to a fifth aspect of the present invention, there is provided the attachment mounting structure according to the third or fourth aspect, wherein the foot portion is located at a position laterally deviated from a center of gravity of the attachment in an independent state. Is formed on the attachment. In this case, the worker can easily tilt the attachment by pulling the upper part of the attachment while putting weight on the foot portion.

According to a sixth aspect of the present invention, in the attachment mounting structure according to the third, fourth or fifth aspect, the attachment is provided with a detachable bottom frame. According to this configuration, after the attachment is attached to the main body, the bottom frame floating from the ground can be removed, so that the attachment after attachment becomes compact, which is preferable.

According to a seventh aspect of the present invention, in the attachment mounting structure according to any one of the third to sixth aspects, the pair of first connecting pieces are engaged with each other to be in a hooked state. Are formed by a pair of pieces forming the above. With this configuration, the first connection portion can be easily formed by combining the first connection portion pieces, and thus the attachment can be quickly attached with little labor.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. Here, as an example, a case will be described in which an attachment 3 composed of a sprayer main body 2 such as a granular fertilizer supported by a bottom frame 1 is directly mounted on a rear part of a riding management machine 4 as a main body for movement.

First, an outline of the attachment mounting method according to the present embodiment will be described with reference to FIGS.

As shown in FIG. 1, one worker M tilts the attachment 3 standing upright on the ground GL backward by the bottom frame 1 to the rear, and the first connecting portion on the attachment 3 side. The hook 5 as a piece is displaced by an appropriate height H to a position higher than the pin 6 as a first connecting piece on the side of the riding management machine 4 provided in a pair with the hook 5.

Then, another worker (not shown) operates, for example, the riding management machine 4 to operate the attachment 3.
And the front and rear engagement positions of the hook 5 and the pin 6 are aligned. Thereafter, as shown in FIG. 2, the one worker M slightly returns the inclined posture of the attachment 3 to the front, and hooks the hook 5 on the pin 6. Thereby, a part of the weight of the attachment 3 is borne on the ride management machine 4 side.

Next, the attachment 3 is pivoted so as to push up the attachment 3 toward the ride management machine 4 with the connecting portion 7 between the hook 5 and the pin 6 as a fulcrum, and as shown in FIG. The second connecting portions 8 and 9 provided as a pair on the side and the passenger management machine 4 side are combined with each other to form the second connecting portion 10. Thereafter, if necessary, the bottom frame 1 floating above the ground GL may be removed. The detailed configuration for implementing the attachment mounting method according to the present embodiment is, for example, as follows.

In FIG. 4, the sprayer main body 2, which is a constituent element of the attachment 3, has a hopper 11 with an upper lid 11a for accommodating a powdery and granular material, and a left and right laid state and a standing state with respect to the traveling direction. A pair of left and right injection tubes 12, 12 which can be fixed, and a feeding device 13 which feeds the granular material in the hopper 11 to the pair of left and right injection tubes 12, 12.
And The sprayer main body 2 is, for example, as shown in FIG.
As shown in the figure, the rear body frame 1 of the riding management machine 4
4, the feeding device 13 is driven by a driving force supplied from the riding management machine 4 side, and the pair of left and right injection pipes is blown from a blowing device (not shown) mounted on the riding management machine 4 side. The powder / granule transport airflow is supplied to 12,12.

When the attachment 3 is not attached to the riding management machine 4, the attachment 3 stands upright on the ground GL by the support frame 15. As shown in FIG. 4, the support frame 15 includes a fixed frame 16 integrally fixed to the sprayer main body 2 and a fixed frame 1.
6 and the bottom frame 1 which is detachable from the bottom frame 6.

The fixed frame 16 is formed by combining steel square pipes.
7, 17; a pair of left and right upper arms 18, 18 and a pair of left and right lower arms 19, 19 fixed to the pair of left and right vertical frames 17, 17; Left and right connecting frames 22a for connecting the parts to be connected to each other.

The pair of left and right vertical frames 17, 17
The upper part is fixed to the left and right sides of the sprayer main body 2 and extends vertically when the attachment 3 is in a self-standing state.

The pair of left and right upper arms 18, 18
The rear end portion is fixed to a height position of the pair of left and right vertical frames 17 corresponding to each other, and horizontally extends forward in a self-standing state of the attachment 3. Similarly, the pair of left and right lower arms 19, 19
The rear end portion is fixed to a height position of the pair of left and right vertical frames 17 corresponding to each other, and horizontally extends forward in a self-standing state of the attachment 3.

On the other hand, the bottom frame 1 is formed by combining steel round pipes, and as shown in FIG.
A pair of left and right grounding frames 20, 20 having the same shape as each other
And a pair of left and right pedestal frames 21 and 2 fixed to the pair of left and right grounding frames 20 and 20 and having the same shape.
1 and a plurality of left and right connecting frames 22b for connecting mutually corresponding portions of the pair of left and right pedestal frames 21 and 21 to each other.

In the bottom frame 1, the pair of left and right grounding frames 20, 20 are bent upward at a position displaced rearward from the center of gravity G (see FIG. 1) of the attachment 3 in a self-standing state. That is, the pair of left and right grounding frames 20 and 20 is
A pair of left and right front horizontal portions 2 that contact the ground GL when the attachment 3 stands upright and self-supporting with the attachment 3 therebetween.
4, 24, and a pair of right and left rear inclined portions 25, 25 integrally extending rearward and obliquely upward from the pair of left and right front horizontal portions 24, 24. As shown in FIG. 1, the pair of left and right rear inclined portions 25, 25 contact the ground GL when the attachment 3 is inclined rearward with the pair of left and right bent portions 23, 23 as fulcrums. This facilitates the maintenance of the attachment 3 in the inclined state by the one worker M.

The weight distribution of each part of the attachment 3 is devised so that the position of the center of gravity G is appropriately set so that the pair of right and left rear inclined portions 25, 25 can stand alone even when the attachment 3 is inclined. If you make a mistake,
This eliminates the need to manually hold the attachment 3 in an inclined state, which is preferable.

As shown in FIG. 4, between the pair of left and right rear inclined portions 25, 25, when the attachment 3 is inclined to facilitate the operation of inclining the attachment 3 backward, There is provided a bar-shaped foot portion 26 for the user to step on. Needless to say, the foot portion 26 has the effect of reinforcing the bottom frame 1 and lowering the contact pressure.

The bottom frame 1 and the fixed frame 1
6, a pair of connecting pieces that form a pair of left and right connecting parts 27, 27 that are detachable by being combined with each other are provided as a pair. Here, as shown in FIG. 5 in an exploded manner, a pair of left and right connecting inner cylinders 28 and 28 made of a steel square pipe is attached to the pair of left and right pedestal frames 21 and 21 of the bottom frame 1. It is fixed upwardly as a side connecting piece. The outer peripheral shape of the pair of left and right connecting inner cylinders 28, 28 conforms to the inner peripheral shape of the lower end portions 17a, 17a of the pair of left and right vertical frames 17, 17 of the fixed frame 16 as the fixed frame side connecting portion. Shape. In the bottom frame 1, the pair of left and right connecting inner cylinders 28, 28 are inserted into the respective lower end portions 17a, 17a of the pair of left and right vertical frames 17, 17 and are fastened through their overlapping portions. It is usually fixed to the fixed frame 16 by bolts 29 and nuts 30 as tools.

As shown in FIG. 5, on the upper sides of the pair of left and right pedestal frames 21, 21 of the bottom frame 1, the pair of left and right lower arms 19, 19 are connected to the fixed frame 16. Pillow member 3 supporting left and right
1, 31 are fixed by an appropriate method such as welding.

As shown in FIG. 5, the fixed frame 16
The pair of left and right lower arms 19, 19 constituting the first body 7 and the rear body frame 14 of the riding management machine 4 constitute the detachable first connecting portion 7 by being combined with each other. The first connecting pieces 5 are provided in pairs.

Here, the pair of lower arms 1 on the left and right
A pair of left and right hook plates 32, 32 are fixedly provided at the front end portions of the panels 9, 19, respectively. The pair of left and right hooks 5, 5 are formed at the front ends of the pair of left and right hook plates 32, 32 as the attachment-side first connecting piece. On the other hand, a pair of left and right lower brackets 33 is fixed to the rear body frame 14 of the riding management machine 4, and the pair of left and right lower brackets 33 is used to connect the riding management machine side first. The pair of left and right pins 6 and 6 as a piece are supported. By the pair of left and right hooks 5 and 5 and the pair of left and right pins 6 and 6 provided as a pair on the attachment 3 side and the riding management machine 4 side, the attachment 3 is attached to the riding management machine 4. Can be held in a hooked state.

As shown by the imaginary line in FIG. 1, the pair of left and right hooks 5 and 5 on the attachment 3 side are connected to the pair of left and right sides on the riding management machine 4 when the attachment 3 is in an upright and self-standing state. Are lower than the pins 6 and 6 by the height H. As shown in FIG. 1, the pair of left and right hooks 5 and 5 on the side of the attachment 3 connect the attachment 3 to the pair of left and right grounding frames 2.
By inclining rearward with the pair of right and left bent portions 23, 23 as fulcrums, the arc is displaced upward and backward in an arc centered on the fulcrum, and the left and right sides of the riding management machine 4 side are displaced upward. This is a height position suitable for the work of hanging on the pair of pins 6 and 6.

As in the case of the present embodiment, the first connecting portion 7 is provided with a pair of hooks 5
If it comprises from the above etc., connection work will become easy and suitable, but it is not necessarily limited to this. For example, like the second connection part 10 described in detail below, the element on the attachment 3 side and the The elements on the ride management machine 4 side may be connected to each other using appropriate fixing tools such as bolts and nuts.

The pair of left and right upper arms 18, 18 constituting the fixed frame 16 and the rear body frame 14 of the riding management machine 4 are detachably connected to each other by being combined with each other. The second connecting portion pieces 8 and 9 constituting the portion 10 are provided as a pair.

In the present embodiment, as shown in FIG. 5, mounting holes 34 are respectively formed in the front ends of the pair of left and right upper arms 18 as the attachment-side second connecting piece.
And a pair of left and right protruding pieces 8, 8 having the following. on the other hand,
The rear body frame 14 of the riding management machine 4 has a mounting hole 3 as a riding management machine-side second connecting piece.
A pair of right and left upper brackets 9, 5 having a pair 5 are fixedly provided. A mounting hole 34 formed in the pair of left and right protruding pieces 8 on the attachment 3 side;
The mounting holes 35 formed in the pair of left and right upper brackets 9, 9 are formed after the pair of left and right hooks 5, 5 are hooked on the pair of left and right pins 6, 6 to form the first connecting portion 7. The attachments 3 coincide with each other when the attachments 3 are pushed up and turned toward the riding management machine 4 so that the bottom frame 1 is lifted up with the first connecting portion 7 as a fulcrum. Then, the pair of left and right protruding pieces 8 on the attachment 3 side and the pair of upper right and left brackets 9 on the ride management machine 4 side are connected to each other by bolts 36 and nuts 37 as fasteners. I'm sullen.

In the illustrated example, the attachment 3
The pair of left and right hook plates 32, 32 on the side and the pair of left and right lower brackets 33, 33 on the side of the riding management machine 4 are formed with mounting holes 38, 39 that match each other when the attachment 3 is mounted. And a bolt 40 as a fixing tool
And the nut 41, the pair of left and right hook plates 32, 3
2 and the pair of left and right lower brackets 33, 33 are fixed to each other.

The worker attaches the attachment 3 to the riding management machine 4 as follows.

First, as shown in FIG. 1, the one worker M causes the attachment 3, which is standing upright on the ground GL, to be inclined. Specifically, a part of the weight is put on the foot portion 26 of the attachment 3 by putting a foot on the foot portion 26, and the upper part of the attachment 3 is pulled backward, so that the pair of left and right grounding frames 2
With the pair of left and right bent portions 23, 23 as fulcrums, the attachment is mounted until the pair of left and right rear inclined portions 25, 25 of the pair of left and right grounding frames 20, 20 come into close contact with the ground GL. Tilt 3 backward. Then, the pair of left and right hooks 5, 5 on the attachment 3 side are displaced upward and rearward by the height H in an arc centered on the pair of left and right bent portions 23, 23, and the riding management is performed. The height position is suitable for the work of hooking the pair of left and right pins 6 and 6 on the machine 4 side.

Next, the other operator operates the riding management machine 4 to bring the rear body frame 14 closer to the attachment 3 in an inclined state, and the attachment 3
The front and rear engagement positions of the pair of left and right hooks 5 and 5 and the pair of left and right pins 6 and 6 of the riding management machine 4 are aligned.

Thereafter, as shown in FIG. 2, when the one worker M returns the attachment 3 to the front, the pair of left and right hooks 5 and 5 on the attachment 3 side are bent by the pair of left and right bends. The first connecting portion 7 is formed by being displaced downward and forward along an arc centered on the portions 23 and 23 and being caught by the pair of left and right pins 6 and 6 on the side of the riding management machine 4. At this time, the attachment 3 that is going to return to the original self-standing state by its own weight is leaning against the passenger management machine 4 with a returning force to the upright self-standing state,
Part of the weight of the attachment 3 is the
Is supported by the rear fuselage frame 14.

Subsequently, the one worker M pushes up the attachment 3 in the direction in which the bottom frame 1 rises from the ground GL, that is, in the direction of the arrow in FIG. Let me know. Then, FIG.
As shown in FIG. 5, the pair of left and right protruding pieces 8, 8 on the attachment 3 side are combined with the pair of left and right upper brackets 9, 9 on the passenger management machine 4 side, so that the mounting holes 34, 35 are connected to each other. The pair of left and right hook plates 32, 32 on the attachment 3 side and the pair of left and right lower brackets 3 on the side of the riding management machine 4 coincide with each other.
The mounting holes 38 and 39 provided in the third and third 33 coincide with each other. Then, for example, the other worker uses the bolt 36 and the nut 37 to move the pair of left and right protruding pieces 8 on the attachment 3 side and the riding management machine 4.
The left and right upper brackets 9 and 9 are connected to each other, and the bolt 40 and the nut 41 are connected to each other.
The pair of left and right hook plates 32, 32 on the attachment 3 side and the pair of left and right lower brackets 33, 33 on the passenger management machine 3 side may be connected to each other using the above.

Finally, the fixing members 29 and 30 are removed, and
If the bottom frame 1 rising from the ground GL is detached from the fixed frame 16, the bottom frame 1 does not hinder the spraying operation by the sprayer body 2 or the running of the riding management machine 4, which is preferable. It is.

In this embodiment, the first connecting portion 7
And the second connecting portion 10 are arranged vertically, but the invention is not limited to this. For example, both the first connecting portion and the second connecting portion may be fixed types, and It is also possible to configure so as to line up in the direction.

Further, by appropriately setting the position of the center of gravity G and the rear inclined portions 25, 25 of the bottom frame 1,
If the independence stability in the inclined state shown in FIG. 2 is sufficiently ensured, the attachment / detachment work of the attachment 3 can be performed by one person.

[Brief description of the drawings]

FIG. 1 is a side view showing one process of an attachment mounting method according to an embodiment of the present invention.

FIG. 2 is a side view showing one process of an attachment mounting method according to one embodiment of the present invention.

FIG. 3 is a side view showing one process of an attachment mounting method according to an embodiment of the present invention.

FIG. 4 is an overall perspective view showing an example of an attachment constituting the attachment mounting structure according to one embodiment of the present invention.

FIG. 5 is an exploded perspective view of a main part of the attachment shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom frame 3 Attachment 4 Riding machine (this machine) 5 Hook (1st connection piece) 6 Pin (1st connection piece) 7 1st connection part 8, 9 2nd connection piece 10 2nd connection part 25 Rear inclined part (ground contact part) 26 Foot part G Center of gravity of attachment

Claims (7)

[Claims] An attachment (3) is tilted from a self-standing state, and first connecting pieces (5, 6) provided in pairs on the attachment (3) side and the machine (4) side are combined with each other. To form a first connecting portion (7), and to pivot the attachment (3) upward with the first connecting portion (7) as a fulcrum, thereby to make the attachment (3) side and the machine (4) side And the second connecting piece (8,
An attachment mounting method, wherein 9) are combined with each other to form a second connecting portion (10). 2. The attachment (3) has a detachable bottom frame (1), and the second connecting portion (1)
0), after removing the bottom frame (1) from the attachment (3),
The attachment mounting method according to claim 1. 3. The attachment (3) is tilted from a self-standing state so that the first connecting pieces (5, 6) that match each other are attached to the attachment (3) side and the machine (4).
The attachment (3) is pivoted upward about a first connecting portion (7) formed by a combination of the first connecting portion pieces (5, 6). An attachment mounting structure, comprising: a pair of second connecting pieces (8, 9) which match each other on the side of the attachment (3) and the side of the machine (4). 4. The attachment mounting structure according to claim 3, wherein a grounding portion (25) that is grounded when the attachment (3) is tilted from a self-standing state is formed on the attachment (3). 5. The attachment (3), wherein the attachment (3) has a foot portion (26) located at a position laterally deviated from a center of gravity (G) of the attachment (3) in a self-standing state. Or the attachment mounting structure according to 4. 6. The attachment mounting structure according to claim 3, wherein said attachment (3) comprises a removable bottom frame (1). 7. A pair of first connecting pieces formed by a pair of pieces (5, 6) that engage with each other to form a hooked state. Attachment mounting structure according to the item.