JP2000093062A - Traveling type distributor of chemical - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traveling type distributor of chemicals, capable of readily and easily performing a height position-changing operation of a nozzle boom, further capable of readily and easily performing the posture change of the nozzle boom and a minute adjustment of the angle of the posture, capable of lowering the top position of a prop as low as possible, and having the nozzle boom or the like regulated so as not to be damaged easily even if the nozzle boom or the like receives an external force. SOLUTION: A prop 23 is vertically stood at the foremost part of a car body 12. A slider 24 for adjusting the height is outserted on the prop 23 at the arbitrary height position so as to be fixed. A nozzle boom 45, 50 is connected to the slider 24 for adjusting the height so as to be opened and closed. A slant surface part 24a expanding so as to be widened toward the end is formed in the slider 24 for adjusting the height. A wedge-shaped stopper 25 composed of an elastic material such as a rubber which is pressed by and brought into contact with both of the slant surface part 24a and the prop 23 is inserted between the slant surface part 24a and the prop 23 so as to be freely inserted and removed to fix the slider 24 for adjusting the height to the prop 23 at an arbitrary height position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling type chemical spraying machine used for spraying medicines and the like to vegetables and the like in a field while traveling, and more particularly, to a traveling column which is provided upright at the forefront of a vehicle body. And a nozzle boom for spraying a medicine, the height of which can be arbitrarily changed and the boom is horizontally and vertically opened and closed.

[0002]

2. Description of the Related Art FIGS. 8 and 9 show a conventional example of this type of traveling-type medicine spraying machine. The traveling medicine spreader 1 of the illustrated example is provided with a pair of left and right crawlers 13 below the vehicle body 12, a medicine tank 15 is disposed above the vehicle body 12, and behind the medicine tank 15, Although not shown, a prime mover for rotating and driving the crawler 13, a pump for driving and spraying the medicine in the medicine tank 15 to a nozzle 52 of a nozzle pipe 50 described below, a steering device,
A transmission, a steering device and the like are provided. In the drawing, reference numeral 17 denotes a steering handle, reference numeral 18 denotes a side clutch lever, and reference numeral 16 denotes a shift lever.

At the forefront of the vehicle body 12, a rectangular column 63 is vertically provided.
The slider 64 for adjusting the height of the nozzle boom
5, it is externally fitted so that it can be fixed at an arbitrary height position,
A pair of left and right horizontal projecting support pieces 67, 67 are fixed to the nozzle boom height adjusting slider 64, and the horizontal projecting support pieces 67, 67 are respectively connected to the turning connection members 73 having a U-shaped cross section. , 73 are rotatably supported in a vertical plane via support shafts 85, 85, and the boom 45 constituting the base end of the nozzle boom is connected to the rotation connection members 73, 73 by bolts or the like. A fixed number of nozzles 52, 52,... Are provided at predetermined intervals on the booms 45, 45 via connecting pieces 47, 47. A nozzle pipe 50 constituting a main body of the nozzle boom, 5
0 is held.

The pair of left and right booms 45, 45 are respectively provided with outer ends of support opening / closing link arms 77, 77 by pins or the like, and the base ends of the support opening / closing link arms 77, 77, respectively. The bolts 63
Is fixedly fixed at an arbitrary height position along the vertical guide length 63a formed in the vertical direction. In the traveling type medicine spreader 1 having such a configuration, the height adjustment slider 64 and the support opening / closing link arm 77 can be used to change the height position and the angle of the nozzle pipes 50, 50 according to the working conditions. After slightly loosening the bolts 65, 75 inserted into the base end of the 77, the slider 67 for height adjustment and the base end of the link arm 77, 77 for opening and closing the support are slid vertically. Tighten the bolts 65 and 75 at a desired position, and
To be fixed to.

The pair of left and right nozzle pipes 50,
To change the position 50 from the horizontal position (open position) as shown in FIG. 8 to the vertical position (closed position) as shown in FIG. After the bolts 75 are slightly loosened, the base ends of the support opening / closing link arms 77, 77 are slid upward along the guide length 63a, and the boom 4
The bolts 75 are tightened at positions where the nozzle pipes 5 and 45 and the nozzle pipes 50 and 50 are in a vertical position, and the bolts 75 are fixed to the columns 63.

[0006]

As described above, in the conventional traveling-type medicine spraying machine 1, an elevating mechanism portion including the height adjusting slider 24 and the support opening / closing link arms 77, 77, etc. In addition, the following problem has occurred in connection with the opening / closing mechanism portion including the support opening / closing link arms 77 and the rotary connecting member. When changing the height position of the nozzle pipes 50, 50,
At least two bolts (65, 75) must be loosely tightened, and changing the height position is troublesome. In order to open and close the nozzle pipes 50, 50, the base ends of the support opening and closing link arms 77, 77 are connected to the support columns 6.
3, it is necessary to make the upper end position of the column 63 extra high about Ha in the horizontal posture of FIG. 8, and about Hb in the vertical posture of FIG. The nozzle pipe 50, 50
For example, in order to raise the height to about the upper surface position of the medicine tank 15, it is necessary to protrude the support 63 above the upper surface of the medicine tank 15, and the support 63 is likely to obstruct something.

The pair of left and right nozzle pipes 50, 50
Cannot be made different, in other words, one cannot be in a horizontal position and the other is in a vertical position.
It is also difficult to fine-tune those attitude angles. Since the boom 45 is connected and fixed to the rotary connection members 73, 73 by bolts or the like, for example, the machine may fall over, or the boom 45 and the nozzle pipes 50, 50 held by the boom 45 may be any obstacles. When the nozzle pipes 50 are subjected to an external force by colliding with the nozzle pipes, the nozzle pipes 50 are liable to be damaged such as being bent. The present invention has been made in order to solve the above-described problems, and an object thereof is to easily and easily perform a height position changing operation of a nozzle pipe, and to change a posture of the nozzle pipe, Fine adjustment of the posture angle can be performed easily and easily, and the upper end position of the column can be made as low as possible.
An object of the present invention is to provide a traveling-type medicine spraying machine in which the nozzle pipe and the like are hardly damaged even when subjected to external force.

[0008]

In order to achieve the above object, a traveling type sprayer according to the present invention is basically provided with a column vertically provided at a frontmost portion of a vehicle body, and A height adjusting slider is externally fitted so as to be fixable at an arbitrary height position, and a nozzle boom is connected to the height adjusting slider. The height-adjusting slider is formed with an inclined surface that expands in a hem-spreading manner, and the inclined-surface portion and the support are fixed to the support at an arbitrary height position. And a wedge-shaped stopper made of an elastic material such as rubber, which is pressed into contact with both of them, is inserted and removed.

In a preferred aspect of the present invention, a lower portion of an inverted L-shaped push-down piece is fixed to the wedge-shaped stopper, and a finger-hanging piece is formed directly below an upper side of the push-down piece in the height adjusting slider. You. In another preferred aspect, a horizontally projecting support piece is fixed to the height adjustment slider, and a rotation connecting member is supported by the horizontally projecting support piece via a support shaft so as to be rotatable in a vertical plane, The nozzle boom is detachably supported by the rotating connection member.

In this case, preferably, an angle adjusting and supporting screw member screwed toward the horizontally protruding support piece is screwed into the rotating connecting member, and a torsion coil spring is fitted around the supporting shaft. One end of the torsion coil spring is locked to the horizontally projecting support piece, and the other end thereof is pressed against the base end of the nozzle boom, whereby the nozzle boom is connected to the rotary connecting member. It is supported detachably. In a preferred aspect of the traveling type medicine spreader according to the present invention having the above-described configuration, the frictional force between the support and the height adjusting slider and the wedge-shaped stopper interposed therebetween is provided. In other words, the elevating mechanism portion including the height adjusting slider, the boom, the nozzle boom, and the like is fixed at an arbitrary height position of the column by their own weight.

In this case, in order to change the height position of the nozzle pipe, for example, a thumb is applied to the depressing piece,
The other finger is hooked on the finger-holding piece, and the pressing-down piece is pushed down. As a result, the wedge-shaped stopper inserted between the support and the height-adjusting slider is pushed downward from between them to release the press-contact fixed state, and the lifting mechanism is free to move vertically. It is possible to move to. Therefore, in such a state, the height adjusting slider and the wedge-shaped stopper are slid in the vertical direction to stop the wedge-shaped stopper at a desired position, and the height-adjusting slider is dropped into the wedge-shaped stopper. If it does so, the said elevating mechanism part will be fixed at the height position.

Further, in order to change the nozzle boom from a horizontal position (open position) to a vertical position (closed position), an opening / closing mechanism portion including the rotary connecting member, the nozzle boom, and the like is supported by the support shaft. The nozzle pipe is rotated in a vertical plane so that the nozzle pipe stands upright. Thereafter, the angle adjusting and bearing screw member screwed to the rotary connecting member is supported by the horizontal projecting support. Screw it towards the end face of the piece. Thus, the opening / closing mechanism portion including the nozzle pipe is held in a vertically upright posture.

In order to change the nozzle boom from the vertical position (closed position) to the horizontal position (open position), the opening / closing mechanism is moved in a vertical plane with the support shaft as a fulcrum. By turning the nozzle pipe, the nozzle pipe is set to a posture lying substantially horizontally, and thereafter, the angle adjusting and supporting screw member screwed to the rotary connecting member is attached to the lower portion of the peripheral surface of the horizontal projecting support piece. And screw it in. Thus, the opening / closing mechanism is held in a horizontally laid posture.

As described above, in the traveling medicine spraying machine of the present invention, the height position of the nozzle pipe can be changed only by inserting and removing the wedge-shaped stopper between the column and the height adjusting slider. Since the troublesome operation of loosely tightening a plurality of bolts as in the related art is not required, the height position of the nozzle pipe can be changed very easily. In addition, since the support opening and closing link arm, which was conventionally required, is not required, the support can be made as low as possible, so that the support does not easily become an obstacle,
Workability is improved.

[0015] In addition to the above, even when the nozzle booms are provided as a pair of left and right sides, the positions thereof can be changed individually, and the posture angle of each nozzle pipe can be changed only by loosely tightening the angle adjusting and supporting screw member. Can be finely adjusted, so that it is possible to flexibly and quickly respond to a work environment or the like. Further, since the nozzle boom is detachably supported on the rotation connecting member by a torsion coil spring fitted to the support shaft, the machine may fall down,
When the nozzle boom or the nozzle pipe held by the nozzle boom receives an external force due to collision with some obstacle,
The boom and the nozzle pipe are easily detached from the rotary connecting member. Therefore, the nozzle pipe and the like are less likely to be damaged such as being bent.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a traveling-type medicine spreader according to the present invention. Regarding the traveling-type medicine spreader 10 of the illustrated embodiment, FIGS.
The same reference numerals are given to the portions corresponding to the respective portions of the conventional traveling-type medicine spraying machine 1 shown in FIG. 1 and the overlapping description thereof is omitted, and the differences will be mainly described below.

In the traveling medicine spraying machine 10 of the present embodiment, a rectangular column 23 is vertically provided at the forefront of the vehicle body 12, and the column 23 has a rectangular cylindrical height. An adjustment slider 24 is externally fitted to be fixed at an arbitrary height position, and is provided on each of the left and right side portions of the height adjustment slider 24 with cylindrical horizontal protruding support pieces 31, 31, each having an upward U-shaped cross section. Nozzle pipes 50, 50 forming the main part of the nozzle boom via the rotary connecting members 33, 33, cylindrical booms 45, 45 forming the base end of the nozzle boom, and connecting pieces 47, 47, They are rotatably connected in a vertical plane.

The height adjusting slider 24 will be described in more detail below with reference to FIG. 3 in addition to FIGS. An inclined surface portion 24a that expands in a skirt-spreading shape is formed. The inclined surface portion 24a is formed between the upper end thereof and the support 2.
3, a relatively narrow gap α is formed between the lower end and the front portion 23 of the support 23.
a relatively wide gap β (β> α) is formed between the front surface 23a of the column 23 and the inclined surface 24a of the height adjusting slider 24. A wedge-shaped stopper 25 made of an elastic material such as rubber which is pressed into contact with both of them is interposed so as to be vertically insertable and removable.

The wedge-shaped stopper 25 has a lower part 26a with an unevenness of an inverted L-shaped push-down piece 26, which is cast and integrally fixed. Upper side portion 26b of the pressing piece 26
Is projected horizontally forward above the height adjusting slider 24, and on the inclined surface portion 24 a of the height adjusting slider 24, just below the upper side portion 26 b of the pushing-down piece 26, L A finger-shaped piece 27 in the shape of a letter is fixed by welding or the like. On the other hand, on the left and right side surfaces of the height adjusting slider 24, a pair of cylindrical horizontally projecting support pieces 31, as can be clearly understood with reference to FIGS.
The base end portion of the support member 31 is fixed by welding or the like, and at the distal end side of the horizontally protruding support pieces 31, 31, rotational connection members 33, 33 each having an upward U-shaped cross section are supported via a shaft bolt 35. And is rotatably supported in a vertical plane. The cylindrical connecting booms 45, 4
The nozzle pipes 5 are held and connected to the booms 45 via the connecting pieces 47, respectively. A chemical solution hose (not shown) is connected to the inner ends of the nozzle pipes 50, 50, and a chemical solution pumped from a pump (not shown) is supplied.

A sleeve-shaped spacer 36 is externally fitted on the head side of the spindle bolt 35, a sleeve-shaped spacer 38 is externally fitted on the male screw portion side, and a retaining nut 37 is screwed. The intermediate portion thereof is loosely inserted into the rotation connecting member 33 and the horizontally projecting support piece 31. 5 and 6, a support base 44 having a semi-cylindrical concave portion 44a for supporting the boom 45 and a receiving bottom 44b is welded to the rotary connecting member 33. And the like. In addition to the above, a screw is screwed into a portion of the rotation connecting member 33 closer to the column 23 than the support bolt 35 toward the horizontal projecting support piece 31 from the lower side in the open posture shown in FIG. The angle adjusting and bearing screw member 40 is screwed together.

4, the loop portion 42c of the torsion coil spring 42 is externally fitted to the nut 37 side of the support bolt 35, as can be seen clearly from FIG. An annular one end portion 42a is locked on the lower surface side of the horizontal projecting support piece 31, and the other end portion 42b is pressed against the upper surface side of the base end portion 45a of the boom 45. 45 is detachably supported by the rotation connecting member 33. The traveling-type medicine spreader 1 according to the present embodiment having the above-described configuration.
In the above, the support column 23, the height adjustment slider 24, and the wedge-shaped stopper 25 interposed therebetween are provided.
In other words, it is composed of the height adjusting slider 24, the horizontally projecting support pieces 31, 31, the rotary connecting members 33, 33, the boom 45, the nozzle pipe 50, and the like, by the pressure contact friction force between the two. The lifting mechanism 21 is fixed at an arbitrary height position of the column 23 by its own weight.

In this case, in order to change the height position of the nozzle pipe 50, for example, a thumb is applied to the upper side portion 26b of the press-down piece 26, and another finger is hooked on the finger-holding piece 27, for example. The pressing piece 26 is pressed down. Thereby, the wedge-shaped stopper 25 inserted between the support 23 and the height adjusting slider 24 is provided.
Is lifted downward from between them to release the press-contact fixed state, and the elevating mechanism portion 21 becomes freely movable in the vertical direction. Therefore, in this state, the height adjusting slider 24 and the wedge-shaped stopper 25 are slid in the vertical direction to stop the wedge-shaped stopper 25 at a desired position, and the height adjusting slider 24 is If it is dropped into the stopper 25 side, the lifting mechanism portion 21 is fixed at the height position.

The pair of left and right nozzle pipes 50,
To change the position 50 from a horizontal position (open position) as shown by a solid line in FIG. 5 to a vertical position (closed position) as shown in FIG.
3. The opening / closing mechanism portion 22 including the boom 45, the nozzle pipe 50, and the like is rotated counterclockwise in a vertical plane against the urging force of the torsion coil spring 42 with the support bolt 35 as a fulcrum. The nozzle pipe 50
In a substantially vertical position, and then the angle adjusting and supporting screw member 40 screwed to the rotary connecting member 33 is moved to the front end surface 31a of the horizontal projecting support piece 31.
(See FIG. 6). Thus, the opening / closing mechanism portion 22 including the nozzle pipe 50 is supported and held in a vertically upright posture.

The pair of left and right nozzle pipes 50,
To change 50 from the vertical position (closed position) to the horizontal position (open position), conversely,
The nozzle pipe 50 is rotated clockwise in a vertical plane with the support bolt 35 as a fulcrum, so that the nozzle pipe 50 is laid substantially horizontally. Thereafter, the nozzle pipe 50 is screwed into the rotation connection member 33. The angle adjusting and supporting screw member 40 is screwed toward the lower surface side of the peripheral surface portion 31b of the horizontal projecting support piece 31 (see FIG. 5). Thus, the opening / closing mechanism portion 22 is supported and held in a horizontally laid posture.

As described above, in the traveling-type medicine spraying machine 10 of the present embodiment, the wedge-shaped stopper 25 is used to change the height position of the nozzle pipes 50, 50.
It is only necessary to insert and remove between the slider and the height adjusting slider 24, and a plurality of bolts 65, 75
Since a troublesome operation of loosely tightening the nozzle pipes is not required, the height position of the nozzle pipes 50, 50 can be changed extremely easily. Further, since the support opening / closing link arms 77, 77, which were conventionally required, become unnecessary,
Can be made as low as possible, so that
Becomes less obstructive, and workability is improved.

In addition to the above, the pair of left and right nozzle pipes 50, 50 can be individually changed in posture, and the angle adjustment and support screw members 40, 4
Since the attitude angle of each nozzle pipe 50, 50 can be finely adjusted only by loosely tightening 0, it is possible to flexibly and quickly cope with the working environment and the like. Further, by the torsion coil spring 42 externally fitted to the support bolt 35,
The booms 45, 45 are connected to the rotation connecting members 33, 33.
The machine 10 is overturned and the boom 45 and the nozzle pipe 5
When an external force is applied due to, for example, the 0 colliding with some obstacle, the boom 45 and the nozzle pipe 50 are easily detached from the rotation connecting member 33. Therefore, the nozzle pipes 50, 50, etc. are less likely to be damaged such as being bent.

If there is a concern that the lifting mechanism 21 is fixed and held only by the wedge-shaped stopper 25, for example, as shown in FIG. The front surface 2 of the support column 23 is provided through the reinforcing plate 28, the height adjusting slider 24, and the elongated hole 26c formed in the press-down piece 26.
It may be screwed toward 3a and tightened.
In this case, when changing the height position of the lifting mechanism portion 21 ′, the fixing and holding screw member 29 also serves as the finger hook 27. As described above, one embodiment of the present invention has been described in detail. However, the present invention is not limited to the above-described embodiment, and various designs may be made without departing from the spirit of the invention described in the claims. Can be changed.

[0028]

As will be understood from the above description, the traveling medicine sprayer according to the present invention can easily and easily perform the operation of changing the height position of the nozzle pipe and change the attitude of the nozzle pipe. Further, fine adjustment of the attitude angle can be easily and easily performed, and furthermore, the advantage is obtained that the upper end position of the column can be made as low as possible and that the nozzle pipe and the like can be hardly damaged even when subjected to external force.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a traveling-type medicine sprayer according to the present invention.

FIG. 2 is an enlarged perspective view showing main parts such as a lifting / lowering mechanism part such as a nozzle pipe and an opening / closing mechanism part in the traveling-type medicine spraying machine shown in FIG.

FIG. 3 is a sectional view showing a main part of an elevating mechanism part in the traveling-type medicine sprayer shown in FIG. 1;

FIG. 4 is an enlarged plan view showing a principal part such as a lifting / lowering mechanism part such as a nozzle pipe and an opening / closing mechanism part in the traveling type medicine spraying machine shown in FIG. 1;

FIG. 5 is a cross-sectional view for explaining the configuration and operation of an opening / closing mechanism (opening posture) in the traveling-type medicine sprayer shown in FIG. 1;

FIG. 6 is a cross-sectional view for explaining the configuration and operation of an opening / closing mechanism (closed posture) in the traveling-type medicine sprayer shown in FIG. 1;

FIG. 7 is a cross-sectional view showing a modified example of a main part of an elevating mechanism part in the traveling-type medicine spreader shown in FIG.

FIG. 8 is a perspective view showing an example of a conventional traveling type spraying machine in a nozzle pipe open posture.

FIG. 9 is a perspective view showing a nozzle pipe closed posture state of the traveling medicine spraying machine shown in FIG. 8;

DESCRIPTION OF SYMBOLS 10: Traveling-type medicine sprayer 12 ... Body 23 ... Column 24 ... Height adjustment slider 24a ... Inclined surface 25 ... Wedge-shaped stopper 26 ... Depressed piece 26a ... Upper side 27 ... Finger hooking piece 31 ... Horizontal projecting support Piece 33: Rotating connection member 40: Angle adjusting and supporting screw member 42: Torsion coil spring 42a: One end 42b: Other end 45: Boom (nozzle boom) 45a: Base end 50: Nozzle pipe (nozzle boom)

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[Procedure amendment]

[Submission date] October 6, 1998 (1998.10.
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

The pair of left and right booms 45, 45 are respectively provided with outer ends of support opening / closing link arms 77, 77 by pins or the like, and the base ends of the support opening / closing link arms 77, 77, respectively. The bolts 63
Are fixed so as to be fixed at an arbitrary height position along the vertical guide slot 63a formed in the vertical direction. In the traveling type medicine spreader 1 having such a configuration, the height adjustment slider 64 and the support opening / closing link arm 77 can be used to change the height position and the angle of the nozzle pipes 50, 50 according to the working conditions. After slightly loosening the bolts 65, 75 inserted into the base end of the 77, the slider 67 for height adjustment and the base end of the link arm 77, 77 for opening and closing the support are slid vertically. Tighten the bolts 65 and 75 at a desired position, and
To be fixed to.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

The pair of left and right nozzle pipes 50,
To change the position 50 from the horizontal position (open position) as shown in FIG. 8 to the vertical position (closed position) as shown in FIG. After the bolts 75 are loosened slightly, the base ends of the support opening / closing link arms 77 are slid upward along the guide long holes 63a, and the boom 4
The bolts 75 are tightened at positions where the nozzle pipes 5 and 45 and the nozzle pipes 50 and 50 are in a vertical position, and the bolts 75 are fixed to the columns 63.

Claims (5)

[Claims] 1. A column (23) is vertically provided at the forefront of a vehicle body (12), and a height adjusting slider (24) can be fixed to the column (23) at an arbitrary height position. In a traveling medicine spreader (10) which is externally fitted and a nozzle boom (45, 50) is connected to the height adjusting slider (24), the height adjusting slider (24) has a flared shape. An inclined surface portion (24a) that expands is formed, and the inclined surface portion (24a) and the column are fixed to fix the slider (24) for height adjustment to the column (23) at an arbitrary height position. And a wedge-shaped stopper (25) made of an elastic material, such as rubber, which is pressed into contact with both of them (23). 2. A lower portion of an inverted L-shaped push-down piece (26) is fixed to the wedge-shaped stopper (25), and an upper side portion of the push-down piece (26) in the height adjusting slider (24). A finger hanging piece (27) just below 26b)
The traveling-type medicine spraying machine according to claim 1, characterized in that: 3. A horizontally protruding support piece (31) is fixed to the height adjusting slider (24), and a rotation connecting member (33) is attached to the horizontally protruding support piece (31) by a support shaft (35).
3. The nozzle boom (45, 50) is detachably supported by the pivot connection member (33) so as to be detachably supported by the pivot connection member (33). The travel-type medicine spreader according to the above. 4. An angle adjusting and bearing screw member (40) screwed toward said horizontal projecting support piece (31) is screwed to said rotary connecting member (33). Item 4. The travel-type drug sprayer according to any one of Items 1 to 3. 5. A torsion coil spring (42) is externally fitted to said support shaft (35), and one end (42a) of said torsion coil spring (42) is locked to said horizontal projecting support piece (31). At the same time, the other end (42b) is pressed against the base end (45a) of the nozzle boom (45, 50),
The traveling medicine sprayer according to claim 3, wherein the nozzle boom (45, 50) is detachably supported by the rotary connecting member (33).