JPH0593571U - Self-propelled liquid sprayer - Google Patents

Abstract

(57) [Abstract] [Purpose] Having the nozzle pipes 26 extending vertically and having a pair of nozzles 28 attached at equal intervals in the vertical direction, and running through the furrow passage 114, the chemical liquid from the nozzles 28 to the crop 112. In the chemical spray vehicle (10) for spraying, the vertical displacement of the nozzle pipe (26) and the space for the drive mechanism thereof are reduced, and the vertical displacement is sufficiently increased. [Structure] The column 22 is fixed to the front surface of the vehicle body portion 12, extends in the vertical direction, and is driven by a motor 34. The chain 46 is arranged in the column 22 along the column 22. Nozzle support member
The nozzle 30 supports the nozzle pipe 26 on the column 22, and is moved up and down in accordance with the revolving movement of the chain 46.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a self-propelled liquid spraying vehicle that travels through a furrow passage in a house or the like and sprays a liquid such as a chemical solution to a crop on the furrow, and more specifically, by moving the nozzle pipe while traveling through the furrow passage, The present invention relates to a self-propelled liquid spraying vehicle capable of suppressing uneven spraying of spraying liquid onto the vehicle.

[0002]

[Prior Art]

 In a self-propelled liquid spraying vehicle that sprays chemicals on crops by traveling through a furrow passage in a house, etc., multiple nozzles are installed in a nozzle pipe extending in the vertical direction at right and left in the vertical direction at appropriate intervals. There is. In such a conventional general self-propelled liquid spraying vehicle (eg, Jikkaihei 1-73032), the nozzle pipe is fixed, and the chemical liquid is transferred from the nozzle at the same height and in the same direction to the crop. There is a problem that spraying causes some areas of the crop to be exposed to the drug solution and some areas not to be applied, resulting in uneven application.

For this reason, Japanese Utility Model Publication No. 43-5576 discloses a self-propelled chemical spraying vehicle that travels under a shelving crop and ejects a chemical upward from a nozzle at the upper end of a nozzle pipe. It is disclosed that the nozzle pipe is connected to the crankshaft in the left-right direction and the nozzle pipe is swung forward and backward. In Japanese Utility Model Laid-Open No. 63-115464, the nozzle pipe is swingably supported, and the lower end portion of the nozzle pipe is applied to the uneven peripheral portion of the tire of the self-propelled chemical sprayer to propel the self-propelled chemical solution. It is disclosed that the nozzle pipe is rocked in the front-rear direction in accordance with the rotation of the tire accompanying the traveling of the spraying vehicle. In the self-propelled chemical spraying vehicles of JP-B-43-5576 and JP-B-43-5576, although the nozzle pipe has a small displacement amount, it may move up and down to some extent as a result of rocking in the longitudinal direction. Is going.

[0004]

[Problems to be solved by the device]

 In the self-propelled chemical spraying vehicle disclosed in Japanese Utility Model Publication No. 43-5576, since the nozzle pipe is swung forward and backward, the movement space of the nozzle pipe is increased and the front-back dimension of the self-propelled chemical spraying vehicle is increased. .. In the self-propelled chemical sprayer disclosed in Japanese Utility Model Laid-Open No. 63-115464, since the nozzle pipe is swung by utilizing the uneven peripheral portion of the tire, the left and right tires are moved to the side of the main body of the self-propelled chemical sprayer. In addition to projecting, the nozzle pipe must be placed between the body of the self-propelled chemical spray vehicle and the left and right tires, which makes it difficult to reduce the horizontal dimension of the self-propelled chemical spray vehicle.

On the other hand, Japanese Utility Model Application No. 3-31629 discloses that a cam is rotated by a motor, and a slider fixed to the nozzle pipe is moved up and down by the rotation of the cam to move the nozzle pipe up and down and drive it. A self-propelled liquid spraying vehicle for reducing the space for the mechanism will be disclosed as an example.

However, in the self-propelled liquid spraying vehicle of Japanese Patent Application No. 3-31629, the displacement amount of the up and down movement of the nozzle pipe is restricted by the size of the cam, and in order to increase the displacement amount, the cam is The size of the self-propelled liquid sprayer also increases. The vertical displacement of the nozzle pipe in Japanese Utility Model Publication No. 43-5576 and Japanese Utility Model Application Laid-Open No. 63-115464 is also sufficiently regulated by the dimensions of the crankshaft and the unevenness of the peripheral portion of the tire. It is difficult to increase.

The object of the invention of claim 1 is to increase the vertical displacement of the nozzle while achieving vertical movement of the nozzle and reduction of the space for the drive mechanism thereof. It is an object of the invention of claim 2 to provide an advantageous configuration when adding the function of swinging the nozzle around the vertical line to the self-propelled liquid spraying vehicle of claim 1.

[0008]

Means for Solving the Problems This invention will be described using the reference numerals of the drawings corresponding to the embodiments. The self-propelled liquid spraying vehicle (10) according to claim 1 has the following (a) to (c) as constituent elements. (A) Nozzle pipe (26) extending in the vertical direction (b) Nozzle (28) attached to the nozzle pipe (26) for spraying liquid (c) (c) The nozzle pipe (26) is circulated along a long path in the vertical direction. Endless circling member that carries vertically (46)

The self-propelled liquid spraying vehicle (10) according to claim 2 further has the following (d) to (f) as constituent elements. (D) Nozzle pipe support member (30) that rotatably supports the nozzle pipe (26) around the center line and is vertically carried by the endless circulating member (46) (e) Integral with the nozzle pipe (26) (90) (f) The guide means (90) (f) for guiding the guided member (90) so as to horizontally swing the guided member (90) as the nozzle pipe (26) moves up and down. 52,52b)

[0010]

[Action]

 In the self-propelled liquid spraying vehicle (10) of the first aspect, the endless circulating member (46) orbits along a long path in the vertical direction. The nozzle pipe (26) is entrained by the endless circulating member (46) to move up and down, and the nozzle (28) also moves up and down.

In the self-propelled liquid spraying vehicle (10) according to claim 2, the nozzle pipe support member (30) includes the endless circulating member (30) as the endless circulating member (46) orbits along a long path in the vertical direction. The nozzle pipe (26), the nozzle (28), and the guided member (90) are moved up and down by being carried by the (46). The guided member (90) is horizontally swung as a result of being guided by the guiding means (52, 52b) during the vertical movement. As a result, the nozzle (28) vertically moves while swinging in the horizontal direction.

[0012]

Embodiments of the present invention will be described below with reference to embodiments of the drawings. FIG. 10 is a schematic side view of the chemical spray vehicle 10. The vehicle body section 12 can be moved forward and backward by the forward and reverse rotation of the front and rear wheels 14 driven by an internal motor (not shown). A front bumper switch 16 is provided at the lower part of the front part and a lower part of the lower part and A hose connection portion 18 and a handle 20 are provided on the upper portion, respectively. As is well known, the front bumper switch 16 collides with a stake standing at the end of the furrow passage 114 (FIG. 11) and can be turned on and off. The support column 22 is fixed to the front surface side of the vehicle body section 12 at the lower end via a plurality of bolts 24 and extends upward to an appropriate length. One nozzle pipe 26 extends parallel to the support 22 on the front side of the support 22, and a total of four pairs of nozzles 28 are attached at equal intervals in the vertical direction. The nozzles 28 of each pair are directed obliquely upward and diametrically opposite to each other. The nozzle support member 30 supports the nozzle pipe 26 and is also supported by the column 22. The speed reducer 32 is attached to the upper end of the support column 22 on the side opposite to the nozzle pipe 26, and reduces the rotation of the motor 34.

FIGS. 5 and 6 are partial views of a side view of the support column 22 and the nozzle pipe 26, taken along a predetermined vertical position. The speed reducer 32 includes a speed reducer output shaft 36 protruding into the support column 22, and the rotation of the motor 34 is reduced by the speed reducer 32 and transmitted to the speed reducer output shaft 36. The bolt 40 is fixed to the lower portion of the column 22 via a nut 42, and the sprocket 44 is rotatably supported by the shaft portion of the bolt 40 while being prevented from coming off from the shaft portion of the bolt 40. The chain 46 is arranged in the column 22 and is hung on the sprockets 38 and 44.

FIG. 7 is a plan view of a range including the support column 22. The column 22 has a box-shaped cross section that opens to the front side (left side in FIG. 7). 5 to 7, the upper stay 48 and the lower stay 50 are respectively applied to the upper and lower portions of the column 22 and to the outer surface sides of the right and left side portions with respect to the traveling direction of the chemical spraying vehicle 10. It is fixed to the column 22 with bolts 57 (Fig. 7) and nuts 59, and projects forward. The guide rod 52 extends linearly at an angle slightly inclined with respect to the vertical line when viewed from the front of the support column 22 (FIGS. 1 to 4), and is inserted into the insertion hole 51 of the upper stay 48 at the upper end and the lower end. It is fixed to the lower stay 50 by two nuts 53 in the section.

In FIG. 7, the column 22 has the left and right side edge portions 64 at the front end bent inward and opened between the side edge portions 64. The inner up-and-down moving plate 54 and the outer up-and-down moving plate 56 are arranged inside and outside the column 22 with the side edge portions 64 interposed therebetween. The inner vertical moving plate 54 has a screw shaft portion 58 projecting toward the outer vertical moving plate 56. The screw shaft portion 58 is fitted with the collar 60 and the outer vertical moving plate 56, and then the nut 62 is screwed. The outer vertical moving plate 56 is fixed to the inner vertical moving plate 54. The entrainment pin member 66 is connected and fixed to a predetermined portion of the chain 46, and penetrates the inner vertical movement plate 54.

FIG. 8 is a structural diagram of a range including the entraining pin member 66. The chain 46 includes a plate 68 that is disposed opposite to each other in the thickness direction, and a connecting pin 70 that connects the pair of plates 68 and rotatably connects the ends of the plates 68 that are adjacent to each other in the extending direction. have. The protruding pin 72 is arranged on the outer surface side of the chain 46 and is fixed to the connecting pin 70. The bushing 74 annularly surrounds the outer side of the protruding pin 72 in the radial direction, and is rotatably supported by the protruding pin 72 via a roller array 76. The flat washer 78 is fitted into the protruding pin 72 to prevent the roller row 76 from coming off, and the retaining ring 80 is fitted to the protruding pin 72 to prevent the plain washer 78 from coming off. The inner vertical moving plate 54 has a lateral guide hole 82 through which the entrainment pin member 66 is inserted, and the flat washer 78 prevents the bushing 74 from coming off from the lateral guide hole 82 at the outer peripheral edge portion. The entrainment pin member 66 includes a projecting pin 72, a bushing 74 assembled to the peripheral portion of the projecting pin 72, a roller row 76, a flat washer 78, a lateral guide hole 82, and the like.

3 and 4 are partial views of the front view of the column 22 from which the outer vertical moving plate 56 of FIG. 7 is removed, which is divided at predetermined vertical positions. The lateral guide hole 82 has a length corresponding to the width of the chain 46 in the left-right direction, and the driving pin member 66 is inserted movably in the left-right direction. Thus, the inner vertical movement plate 54 moves up and down by the revolving movement of the entraining pin member 66 accompanying the revolving movement of the chain 46.

FIGS. 1 and 2 are partial views of a front view of the column 22 and the nozzle pipe 26, taken along a predetermined vertical position. 2 and 4, the two mounting plates 84 are fixed to the rear surface of the lower end of the column 22 with a space therebetween, and have adjusting holes 86 on the left and right. The bolt 24 shown in FIG. 10 is inserted into the adjustment hole 86 at an arbitrary position in the vertical direction, so that the vertical position of the column 22 is appropriately adjusted and the column 22 is fixed to the front surface of the vehicle body 12. The adjustment hole 88 allows the bolt 40 (FIG. 6) to be movably inserted therein, and allows the vertical position of the sprocket 44 supported by the bolt 40 to be adjusted.

FIG. 9 is a front view of a range including the nozzle support member 30. 7 and 9, the guided member 90 (FIG. 7) has a U-shaped portion 92 in which the guide rod 52 is fitted and a contact portion 94 which is applied to the rear surface side of the nozzle pipe 26. .. The outer contact member 96 is applied to the front surface side of the nozzle pipe 26 so as to sandwich the nozzle pipe 26 in cooperation with the contact member 94 of the guided member 90. It is tightened by 98 and fixed to the nozzle pipe 26. The connecting frame portion 100 (FIG. 7) extends so as to fit the guide rod 52 therebetween, and is fixed to the outer vertical moving plate 56 at the rear end portion. In FIG. 9, the pair of metal parts 102 are applied to the nozzle pipe 26 from both sides in the horizontal direction below the outer contact member 96, and the support bracket 104 has an intermediate portion from the front side of the nozzle pipe 26 to the metal part 102. It is applied and fixed to the connecting frame part 100 (FIG. 7) by the bolts 106 at both ends. The pair of stoppers 108 are applied to the nozzle pipe 26 from both sides in the horizontal direction on the lower side of the support bracket 104, and are fixed to the nozzle pipe 26 by tightening with bolts 98. The nozzle pipe 26 is prevented from vertically moving relative to the support bracket 104 by fixing the contact portion 94 of the guided member 90 and the outer contact member 96, and fixing the pair of stoppers 108, and It is rotatably supported by the support bracket 104 around the center line by interposing the metal portion 102. The inner vertical moving plate 54, the outer vertical moving plate 56, the connecting frame portion 100, the metal portion 102, and the support bracket 104 in FIGS. 7 and 9 are nozzles that rotatably support the nozzle pipe 26 around the center of the column 22. The support member 30 is configured.

FIG. 11 is a diagram showing a state of chemical liquid spraying by the chemical liquid spraying vehicle 10. The ridge 110 is embanked and a crop 112 is planted. The furrow passage 114 is formed between the furrow 110 and lower than the furrow 110. The chemical spraying vehicle 10 sprays the chemical onto the product 112 from the nozzle 28 while traveling in the furrow passage 114.

The operation of the embodiment will be described. While the chemical spraying vehicle 10 is running, the motor 34 operates to rotate the sprocket 38 via the speed reducer 32. The chain 46 circulates between the sprockets 38 and 44 as the sprocket 38 rotates, and moves the entraining pin member 66 up and down. The entrainment pin member 66 is allowed to move relative to the inner vertical movement plate 54 in the left and right relative directions in the horizontal guide hole 82 of the inner vertical movement plate 54 of the nozzle support member 30 while being vertically moved through the horizontal guide hole 82. The plate 54 is entrained and the nozzle support member 30 is moved up and down. The nozzle pipe 26 moves up and down integrally with the nozzle supporting member 30 while being supported by the nozzle supporting member 30 via a pair of metal portions 102 so as to be rotatable around the center line. On the other hand, since the guide rod 52 is inserted between the U-shaped portions 92 of the guided member 90, the guided member 90 is slanted with respect to the vertical line during the vertical movement of the nozzle pipe 26. Is guided and is shaken to the left and right. That is, when the U-shaped portion 92 slides on the part of the guide rod 52 on the left side in the traveling direction of the chemical spraying vehicle 10 with respect to the center line of the column 22, the nozzle pipe 26 is viewed from above. When the U-shaped portion 92 slides on the part of the guide rod 52 on the right side in the traveling direction of the chemical spraying vehicle 10 with respect to the center line of the column 22, The nozzle pipe 26 rotates counterclockwise around the center line when viewed from above. In this way, the nozzle pipe 26 moves up and down and rotates around the center line in the clockwise direction and the counterclockwise direction, and accordingly, the position of the nozzle 28 in the vertical direction and the circumferential direction of the nozzle pipe 26 is changed. As a result, each part of the crop 112 is sprayed with the chemical liquid from the nozzle 28 from various directions.

12 and 13 are partial views of a front view of the support column 22 and the nozzle pipe 26 shown together with another guide rod 52b, which is divided at a predetermined position in the vertical direction. The guide rod 52b extends in the up-down direction while alternately bending to the left and right, and as a result, the nozzle pipe 26 can be turned around the center line during the ascending or descending operation per turn so as to rotate. The cycle can be shortened.

In the embodiment, the chain 46 is used as the endless circulating member, but a belt can be used as the endless circulating member instead of the chain 46.

[0024]

[Effect of the device]

 According to the first aspect of the present invention, the endless revolving member that revolves in a long path in the vertical direction is provided, and the reciprocating motion of the endless revolving member is used to move the nozzle up and down. In the endless orbiting member, the vertical dimension can be set to be much longer than the horizontal dimension on the orbiting surface, and the dimension in the direction perpendicular to the orbiting surface, that is, the thickness can be shortened. It is possible to increase the vertical movement distance of the nozzle with a simple configuration while reducing the space for the vertical movement and its drive mechanism.

According to the second aspect of the present invention, the nozzle pipe support member supports the nozzle pipe rotatably around the center line, and is vertically moved by the endless circling member and rotates integrally with the nozzle pipe. During the vertical movement of the nozzle pipe support member, the guide member is guided by the guide means and can be horizontally swung. Therefore, it is not necessary to separately prepare a driving device for horizontally swinging the nozzle, and the route of the proposed means can be freely set, so that the nozzle having the vertical movement function is further provided with the horizontal rotation function. With the addition, the configuration can be simplified.

[Submission date] July 2, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

For this reason, Japanese Utility Model Publication No. 43-5576 discloses a self-propelled chemical spraying vehicle that travels under a shelving crop and ejects a chemical upward from a nozzle at the upper end of a nozzle pipe. It is disclosed that the nozzle pipe is connected to the crankshaft in the left-right direction and the nozzle pipe is swung forward and backward. Further, in Japanese Utility Model Laid-Open No. 63-115464, a nozzle pipe is swingably supported, and the lower end portion of the nozzle pipe is applied to an uneven peripheral portion of a tire of a self-propelled chemical sprayer to propel the self-propelled chemical liquid. It is disclosed that the nozzle pipe is rocked in the front-rear direction in accordance with the rotation of the tire accompanying the traveling of the spraying vehicle. In the self-propelled chemical liquid spraying vehicles of Japanese Utility Model Publication No. 43-5576 and Japanese Utility Model Publication No. 63-115464 , the nozzle pipe has a small displacement amount, but some vertical movement as a result of rocking in the front-back direction. Is going.

[Brief description of drawings]

FIG. 1 is a partial top view of a front view of a column and a nozzle pipe, which is divided at a predetermined position in the vertical direction.

FIG. 2 is a partial view of a lower side obtained by dividing a front view of a column and a nozzle pipe at predetermined positions in the vertical direction.

FIG. 3 is an upper partial view of a front view of the support column from which the outer vertical movement plate of FIG. 7 is removed, which is divided at a predetermined position in the vertical direction.

FIG. 4 is a lower partial view of a front view of a column from which the outer vertical moving plate of FIG. 7 is removed, which is divided at a predetermined position in the vertical direction.

FIG. 5 is an upper partial view of a side view of a support column and a nozzle pipe, which is divided at a predetermined position in the vertical direction.

FIG. 6 is a partial view of a lower side obtained by dividing a side view of a support column and a nozzle pipe at predetermined vertical positions.

FIG. 7 is a plan view of a range including columns.

FIG. 8 is a structural view of a range including a carrying pin member.

FIG. 9 is a front view of a range including a nozzle support member.

FIG. 10 is a schematic side view of a chemical spraying vehicle.

FIG. 11 is a diagram showing a state of chemical liquid spraying by a chemical liquid spraying vehicle.

FIG. 12 is an upper partial view of a front view of a column and a nozzle pipe shown together with another guide rod, which is divided at a predetermined position in the vertical direction.

FIG. 13 is a lower partial view in which a front view of a column and a nozzle pipe shown together with another guide rod is divided at a predetermined position in the vertical direction.

[Explanation of symbols]

 10 Chemical Spraying Vehicle (Self-propelled Liquid Spraying Vehicle) 26 Nozzle Pipe 28 Nozzle 30 Nozzle Support Member 46 Chain (Endless Circulation Member) 52, 52b Guide Rod (Guide Means) 90 Guided Member

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[Procedure amendment]

[Submission date] July 2, 1992

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

Claims (2)

[Scope of utility model registration request] 1. A nozzle pipe (26) extending vertically,
A nozzle (28) which is attached to the nozzle pipe (26) and sprays a liquid, and an endless circulating member (46) which encircles the nozzle pipe (26) in the up-down direction while orbiting along a long path in the up-down direction.
And a self-propelled liquid spraying vehicle. 2. A nozzle pipe support member (30) which rotatably supports the nozzle pipe (26) around a center line and is vertically carried by the endless circulating member (46), and the nozzle pipe (26). ), And the guided member (90) that rotates integrally with the nozzle pipe (26) along with the vertical movement of the nozzle pipe (26).
The self-propelled liquid spraying vehicle according to claim 1, further comprising: a guide means (52, 52b) for guiding the guided member (90) so as to swing the horizontal direction.