JP3554909B2

JP3554909B2 - Spreader dosing device

Info

Publication number: JP3554909B2
Application number: JP17150496A
Authority: JP
Inventors: 新治渡辺; 義弘吉田
Original assignee: Arimitsu Industry Co Ltd
Current assignee: Arimitsu Industry Co Ltd
Priority date: 1996-07-01
Filing date: 1996-07-01
Publication date: 2004-08-18
Anticipated expiration: 2016-07-01
Also published as: JPH1014473A

Description

【０００１】
【発明の属する技術分野】
本発明は薬剤・肥料等の散布剤を圃場等に散布する散布機の調量装置に関する。
【０００２】
【従来の技術】
従来、散布剤タンク内の散布剤を調量する調量弁と、この調量弁を操作する調量レバーとを連動杆を介して連動連結して成る散布機において、散布剤タンクは、散布作業後、タンク内に残留する散布剤を外部に出し易くしたりするため、着脱可能に取付られている。また、調量弁と連動杆との連結は、連動杆の一端部に屈曲部を介して嵌合軸部を設けると共に、調量弁と一体に動作する杆受体を突設し、この杆受体に、前記連動杆の嵌合軸部を受入れる嵌合孔を設け、この嵌合孔に前記嵌合軸部を挿嵌することにより互いに連結するように構成されている。そして、散布剤タンクを取外す場合、嵌合軸部を嵌合孔から抜き出して、調量弁と連動杆との連結を解除するようにしている。また、嵌合孔に挿嵌した嵌合軸部の端部には、松葉ピンを着脱可能に取付け、この松葉ピンを抜き取ることにより嵌合軸部を嵌合孔から抜き出すことができるようにしている。
【０００３】
【発明が解決しようとする課題】
ところが、この従来のものは、調量弁と連動杆との連結が、連動杆の嵌合軸部を、調量弁と一体に動作する杆受体の嵌合孔に挿嵌して連結するようになっているため、嵌合軸部と嵌合孔との寸法交差が大きい場合は、調量弁と連動杆との連結・離脱操作を容易にできる反面、調量レバーの揺動角に対する調量弁の開度の精度が悪くなる不具合があり、また、嵌合軸部と嵌合孔との寸法公差が小さい場合は、調量レバーの揺動角に対する調量弁の開度の精度を良好にできる反面、調量弁と連動杆との連結・離脱操作が行い難くなる不具合があった。
【０００４】
本発明は、調量レバーの揺動角に対する調量弁の開度の精度が良好に得られて、しかも、調量弁と連動杆との連結・離脱操作を容易に行うことができる調量装置を提供することを主たる目的とする。
【０００５】
【課題を解決するための手段】
本発明は、上記目的を達成するために、請求項１記載の発明は、図１に示すように、散布剤タンク４内の散布剤を調量する調量弁５と、この調量弁５を操作する調量レバー６とを連動杆８を介して連動連結して成る散布機の調量装置において、調量弁５と一体に動作する杆受体５２と、該杆受体５２に対し相対運動可能なロック体２０とを備え、杆受体５２に、連動杆８の端部を受入れる受入凹入部５３を設けると共に、ロック体２０に、受入凹入部５３内の連動杆８と係合して該連動杆８の受入凹入部５３内での移動を規制する規制部２５を設けた。
【０００６】
請求項２記載の発明は、ロック体２０が不用意に動作して杆受体５２と連動杆８との連結が不用意に外れるのを簡易に防止できるようにするため、図１に示すように、ロック体２０を、弾性体９を介して支持し、弾性体９を撓ませながら規制部２５が受入凹入部５３内の連動杆８と係合するようにした。
【０００７】
【発明の作用効果】
請求項１記載の発明では、連動杆８の端部を、杆受体５２の受入凹入部５３にその開放側から差込み、ロック体２０を操作して、該ロック体２０の規制部２５を前記受入凹入部５３内の連動杆８端部に係合させることにより、杆受体５２と連動杆８とを隙間なく連結することができ、また、ロツク体２０を操作することにより、規制部２５の連動杆８端部との係合を解除できる。従って、杆受体５２と連動杆８とを、寸法公差に影響されることなく連結できるから、調量レバー６の揺動角に対する調量弁５の開度の精度が良好に得られて、しかも、連動杆８の端部を、受入凹入部５３にその開放側から差込んで、ロック体２０を動作させるだけの簡単な操作で、調量弁５と連動杆８との連結・離脱操作を容易に行うことができるのである。
【０００８】
請求項２記載の発明では、ロック体２０を、弾性体９を撓ませながら回転させない限り、ロック体２０が回転しないため、このロック体２０が不用意に回転するのを防止でき、杆受体５２と連動杆８との連結状態を確実に維持できるのである。
【０００９】
【発明の実施形態】
図４〜図６に示した背負式散布機は、作業者が背中に背負う背負部１ａをもつ背負枠１の背面側に、エンジン２を装備し且つ上部に横長状の散布剤受入口３１をもつ送風装置３を取付け、この送風装置３の上方に、上部に散布剤投入口４１をもち且つ底部を横長状に形成した散布剤タンク４を着脱可能に装着している。
【００１０】
この散布剤タンク４は、上部の投入口４１側から底部に向かって絞り込まれた略漏斗状で、底面を開放したタンク本体４Ａと、該タンク本体４Ａの底部に、下方側から着脱可能に挿嵌支持する角形リング状の弁箱４Ｂとから成り、これらタンク本体４Ａと弁箱４Ｂとの左右両側を、逆Ｕ字形のボルト４２とナット４３とで着脱可能に結合すると共に、前記弁箱４Ｂのタンク本体４Ａから下方への突出部内側に、散布剤タンク４内の散布剤を調量して前記受入口３１に供給する調量弁５を、横方向の弁軸５１を介して開閉自在に設けている。尚、タンク本体４Ａと弁箱４Ｂとを一体として散布剤タンクを構成してもよい。
【００１１】
前記送風装置３の散布剤受入口３１と、散布剤タンク４の底部、詳しくは、タンク本体４Ａの下部及び弁箱４Ｂとを、それぞれ左右方向が広幅となる横長状に形成して、送風装置３における受入口３１を挾んで対向する二つの位置の一方と弁箱４Ｂの一側とに、嵌め込みにより係合して互いに連結する第１及び第２連結部３２，４４を設けると共に、受入口３１を挾んで対向する二つの位置の他方に、弁箱４Ｂの下部他側に着脱可能に係合するレバーから成る係合体１０を設けて、この係合体６により、散布剤タンク４と送風装置３とを互いに離脱可能に連結している。
【００１２】
送風装置３は、前記エンジン２により駆動されるファン３Ａと、該ファン３Ａを内蔵したファンケース３Ｂとから成り、このファンケース３Ｂ内に、ファン３Ａの回りに沿って延びる送風通路３３と、この送風通路３３の出口近くから前記散布剤受入口３１に連通する散布剤供給路３４とを備え、送風通路３３の出口にエルボ管１１を介して噴管を着脱可能に接続するようにしている。
【００１３】
また、ファンケース３Ｂの下部一側に、レバー受体１２を取付け、このレバー受体１２に、横軸から成る枢支部１３を中心として上下方向に揺動可能な調量レバー６と、該調量レバー６を案内するレバーガイド７とを装着し、調量レバー６の反操作部側端部と前記弁軸５１の端部に突設した杆受体５２とを、上下方向に延びる連動杆８で連結し、調量レバー６の上下方向の揺動操作で前記調量弁５を開閉動作させるようにしている。
【００１４】
連動杆８は、長尺の縦杆部８１と、該縦杆部８１の上端から横方向に延びる短尺の横杆部８２とから成り、この横杆部８２を縦杆部８１に対し１８０度首振り自在に連結していると共に、横杆部８２の先端側に抜止段部８３を設けている。
【００１５】
杆受体５２は、弁軸５１の弁箱４Ｂ外方への突出端から半径方向外方に延びる板状部５２ａと、該板状部５２ａの先端上部からさらに外方に突出する摘み部５２ｂとから成り、板状部５２ａの先端下側角部に、弁軸５１に向かって斜め上方に延びる傾斜溝から成る受入凹入部５３を設け、この受入凹入部５３に前記連動杆８の横杆部８２を受入れるようにしている。
【００１６】
そして、前記弁軸５１の杆受体５２からさらに外方に突出する突出端部５４に、中心部に円形嵌合凹部９１をもち、この円形嵌合凹部９１の回りに円形支持部９２をもち、さらにこの円形支持部９２の一端に抜止鍔部９３をもつ合成樹脂製の弾性体９を着脱可能に取付け、この弾性体９の円形支持部９２に、ロック体２０を杆受体５２に対し相対回転可能に支持している。
【００１７】
このロック体２０は、一端側に前記円形支持部９２に挿嵌する嵌合孔２１をもつ板状部２２と、該板状部２２の反嵌合孔側上部から外方に突出する摘み部２３とから成り、板状部２２の摘み部２３側下部に、上方に向かって延びる縦溝２４を設けて、この縦溝２４の奥部で、その片側壁部を、受入凹入部５３内の横杆部８２と係合して該横杆部８２の受入凹入部５３内での移動を規制する規制部２５とし、前記縦溝２４の入口側をガイド部２６として、このガイド部２６を経て規制部２５が連動杆の横杆部８２と係合するようにしている。
【００１８】
このガイド部２６は、図２のようにロック体２０の回転中心Ｏからの長さＨ１が、ロック体２０の回転中心Ｏから規制部２５までの長さＨ２より短く形成して、ガイド部２６を経て規制部２５が横杆部８２に係合するとき、前記長さＨ１とＨ２との差分だけ前記弾性体９の円形支持部９２が撓み、規制部２５が横杆部８２に係合したとき、前記円形支持部９２が弾性復元するようにしている。斯くすることにより、ロック体２０を、弾性体９を撓ませながら回転させない限り、ロック体２０が回転しないため、このロック体２０が不用意に回転するのを防止でき、杆受体５２と連動杆８との連結状態を確実に維持できるのである。
【００１９】
また、図２、図３に示すように、杆受体５２の弁軸５１側端部とロック体２０の嵌合孔２１側端部との対向面一方には、ロック体２０の回転方向に延びるガイド凹部５５を設け、他方には、該ガイド凹部５５と係合してロック体２０の杆受体５２に対する回転範囲を規制する係合突起２７を突設していると共に、ガイド凹部５５の長さ方向中間に、前記係合突起２７と係合してロック体２０を非係合状態に仮り止めする微小突部５６を設けている。
【００２０】
調量レバー６は、レバー受体１２と一体に形成された前記枢支部１３に揺動可能に支持される角筒状の基レバー体６Ａと、この基レバー体６Ａの内側にスライド可能に支持され且つ外方への突出部に操作部６０をもつ先レバー体６Ｂとから成り、この先レバー体６Ｂを背負部１ａに対し前方に大きく突出させて、作業者が背負った状態で自由端側操作部６０を把持して水平に近い状態から上方に向かって調量弁５の開度調節領域及び該開度調節領域を越えてさらに上方に揺動可能にしている。
【００２１】
以上の構成において、散布剤タンク４を送風装置３から取外す場合、ロック体２０を上方に回転させると、規制部２５が受入凹入部５３から離れて、規制部２５の連動杆８における横杆部８２との係合が外れ、受入凹入部５３の入口側が開放される。従って、連動杆は受入凹入部５３の入口から容易に取り出すことができる。
【００２２】
また、散布剤タンク４を送風装置３に取付ける場合、連動杆８の横杆部８２を受入凹入部５３の入口側から奥部に差込んでロック体２０を下方に回転させることにより、該ロック体２０のガイド部２６が横杆部８２と係合し、続いて規制部２５が横杆部８２と係合して、横杆部８２が受入凹入部５３から抜け出るのを防止できる。
【００２３】
尚、以上の実施形態では、ロック体２０を杆受体５２に対し回転可能に構成したが、その他、ロック体２０を杆受体５２に対しスライド可能に構成してもよい。
【００２４】
また、本発明の調量装置は、実施形態のように背負式散布機に装備するものである他、トラクタなどに搭載あるいは牽引される散布機に装備するものであつてもよい。
【図面の簡単な説明】
【図１】本発明調量装置の斜視図。
【図２】同調量装置の正面図。
【図３】図２のＸーＸ線断面図。
【図４】調量装置を装備した散布機の一部を断面した正面図。
【図５】同調量装置を装備した散布機の散布剤タンク・背負部を省略した平面図。
【図６】同調量装置を装備した散布機の一部を断面した側面図。
【符号の説明】
４散布剤タンク
５調量弁
５２杆受体
５３受入凹入部
８連動杆
２０ロック体
２５規制部
９弾性体[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a metering device of a sprayer for spraying a spraying agent such as a medicine and a fertilizer on a field or the like.
[0002]
[Prior art]
Conventionally, in a spraying machine in which a metering valve for metering a spraying agent in a spraying agent tank and a metering lever for operating the metering valve are interlockingly connected via an interlocking rod, the spraying agent tank is It is detachably attached in order to make it easier for the spray agent remaining in the tank to come out after work. In addition, the coupling between the metering valve and the interlocking rod is provided by providing a fitting shaft portion at one end of the interlocking rod via a bent portion, and projecting a rod receiver that operates integrally with the metering valve. The receiving body is provided with a fitting hole for receiving the fitting shaft portion of the interlocking rod, and is configured to be connected to each other by inserting the fitting shaft portion into the fitting hole. When removing the spraying agent tank, the fitting shaft portion is pulled out from the fitting hole, and the connection between the metering valve and the interlocking rod is released. Also, a pine needle pin is detachably attached to an end of the fitting shaft portion inserted into the fitting hole, and the fitting shaft portion can be pulled out from the fitting hole by extracting the pine needle pin. I have.
[0003]
[Problems to be solved by the invention]
However, in this conventional apparatus, the connection between the metering valve and the interlocking rod is performed by inserting the fitting shaft of the interlocking rod into the fitting hole of the rod receiver that operates integrally with the metering valve. Therefore, when the dimensional intersection between the fitting shaft portion and the fitting hole is large, the connecting / disconnecting operation between the metering valve and the interlocking rod can be easily performed, but the swing angle of the metering lever can be reduced. If the accuracy of the opening of the metering valve is deteriorated and the dimensional tolerance between the fitting shaft and the fitting hole is small, the accuracy of the opening of the metering valve with respect to the swing angle of the metering lever On the other hand, there is a problem that it is difficult to connect and disconnect the metering valve and the interlocking rod.
[0004]
According to the present invention, there is provided a metering device which can obtain the accuracy of the opening degree of the metering valve with respect to the swing angle of the metering lever, and can easily perform the operation of connecting and disconnecting the metering valve and the interlocking rod. The main purpose is to provide the device.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a metering valve 5 for metering a spray in a spray agent tank 4, as shown in FIG. In a dosing device for a spreader in which a dosing lever 6 for controlling the operation of the metering lever 6 is interlocked via an interlocking rod 8, a rod receiver 52 that operates integrally with the dosing valve 5; A lock body 20 capable of relative movement; a rod receiving body 52 provided with a receiving recessed portion 53 for receiving an end of the interlocking rod 8; and the lock body 20 is engaged with the interlocking rod 8 in the receiving recessed portion 53. Then, a restricting portion 25 for restricting the movement of the interlocking rod 8 in the receiving concave portion 53 is provided.
[0006]
The invention according to claim 2 is as shown in FIG. 1 in order to easily prevent the lock body 20 from inadvertently operating and disconnecting the connection between the rod receiver 52 and the interlocking rod 8 accidentally. In addition, the lock body 20 is supported via the elastic body 9, and the restricting portion 25 is engaged with the interlocking rod 8 in the receiving concave portion 53 while bending the elastic body 9.
[0007]
Operation and Effect of the Invention
According to the first aspect of the present invention, the end of the interlocking rod 8 is inserted into the receiving recessed portion 53 of the rod receiver 52 from its open side, and the lock body 20 is operated so that the restricting portion 25 of the lock body 20 is moved. By engaging with the end of the interlocking rod 8 in the receiving recessed portion 53, the rod receiving body 52 and the interlocking rod 8 can be connected without any gap, and by operating the locking body 20, the regulating part 25 can be connected. Can be disengaged from the end of the interlocking rod 8. Therefore, since the rod receiver 52 and the interlocking rod 8 can be connected without being affected by the dimensional tolerance, the accuracy of the opening degree of the metering valve 5 with respect to the swing angle of the metering lever 6 can be obtained satisfactorily. In addition, the connecting / disconnecting operation of the metering valve 5 and the interlocking rod 8 can be performed by a simple operation of inserting the end of the interlocking rod 8 into the receiving recessed portion 53 from its open side and operating the lock body 20. Can be easily performed.
[0008]
According to the second aspect of the present invention, the lock body 20 does not rotate unless the lock body 20 is rotated while bending the elastic body 9, so that the lock body 20 can be prevented from rotating carelessly. Thus, the connection state between the link 52 and the interlocking rod 8 can be reliably maintained.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The backpack type sprayer shown in FIGS. 4 to 6 is equipped with an engine 2 on the back side of a backpack frame 1 having a backpack portion 1a on which a worker carries on the back and has a horizontally-shaped spraying agent receiving port 31 at the top. A blowing agent tank 4 having a spraying agent inlet 41 at an upper portion and a bottom portion formed in a horizontally long shape is detachably mounted above the blowing device 3.
[0010]
The spraying agent tank 4 has a substantially funnel shape narrowed from the upper inlet 41 side to the bottom, and has a tank body 4A having an open bottom surface, and is detachably inserted into the bottom of the tank body 4A from below. A left and right sides of the tank body 4A and the valve box 4B are detachably connected to each other by an inverted U-shaped bolt 42 and a nut 43, and the valve box 4B is provided. The metering valve 5 for metering the spraying agent in the spraying agent tank 4 and supplying it to the receiving port 31 inside the protruding portion downward from the tank body 4A can be opened and closed via a horizontal valve shaft 51. Is provided. Note that the spraying agent tank may be configured by integrating the tank body 4A and the valve box 4B.
[0011]
The spray receiving port 31 of the blower 3 and the bottom of the spray tank 4, more specifically, the lower part of the tank body 4 </ b> A and the valve box 4 </ b> B are each formed in a horizontally long shape having a wide width in the left-right direction. The first and second connecting portions 32 and 44 are provided at one of two positions opposed to each other across the receiving port 31 of the valve body 3 and on one side of the valve box 4B so as to be engaged with each other by fitting and connected to each other. At the other of the two opposing positions across the base 31, there is provided an engaging member 10 comprising a lever which is detachably engaged with the other lower side of the valve box 4B. 3 are detachably connected to each other.
[0012]
The blower 3 includes a fan 3A driven by the engine 2 and a fan case 3B containing the fan 3A. Inside the fan case 3B, a blower passage 33 extending around the fan 3A. A spray agent supply passage 34 is provided near the outlet of the air passage 33 and communicates with the spray agent receiving port 31. A jet tube is detachably connected to the outlet of the air passage 33 via the elbow pipe 11.
[0013]
A lever receiver 12 is attached to one lower side of the fan case 3B. The lever receiver 12 is provided with a metering lever 6 that can swing up and down around a pivot 13 formed of a horizontal axis. A lever guide 7 for guiding the metering lever 6 is mounted, and an end of the metering lever 6 on the side opposite to the operating portion and a rod receiver 52 protruding from the end of the valve shaft 51 are interlocked with each other. 8, the control valve 5 is opened and closed by the swinging operation of the control lever 6 in the vertical direction.
[0014]
The interlocking rod 8 includes a long vertical rod portion 81 and a short horizontal rod portion 82 extending laterally from the upper end of the vertical rod portion 81. In addition to being connected to swing freely, a retaining step 83 is provided at the tip end of the horizontal rod 82.
[0015]
The rod receiver 52 includes a plate-like portion 52a extending radially outward from an end of the valve shaft 51 projecting outward from the valve box 4B, and a knob 52b further projecting outward from an upper end of the plate-like portion 52a. And a receiving recessed portion 53 formed of an inclined groove extending obliquely upward toward the valve shaft 51 at the lower end corner of the plate-shaped portion 52a, and the receiving recessed portion 53 is provided with a horizontal rod of the interlocking rod 8. The part 82 is received.
[0016]
The protruding end 54 of the valve shaft 51 further protruding outward from the rod receiver 52 has a circular fitting concave portion 91 at the center and a circular support portion 92 around the circular fitting concave portion 91. Further, an elastic body 9 made of synthetic resin having a stopper flange 93 is detachably attached to one end of the circular support portion 92, and the lock body 20 is attached to the circular support portion 92 of the elastic body 9 with respect to the rod receiver 52. Supports relative rotation.
[0017]
The lock body 20 has a plate-like portion 22 having a fitting hole 21 inserted into the circular support portion 92 at one end side, and a knob portion protruding outward from an upper portion of the plate-like portion 22 opposite the fitting hole side. A vertical groove 24 extending upward is provided at a lower portion of the plate-shaped portion 22 on the side of the knob 23, and one side wall portion of the vertical groove 24 is inserted into the receiving recess 53. The restricting portion 25 is engaged with the lateral rod portion 82 to restrict the movement of the lateral rod portion 82 in the receiving recessed portion 53, and the entrance side of the vertical groove 24 serves as the guide portion 26, and passes through the guide portion 26. The restricting portion 25 engages with the horizontal rod portion 82 of the interlocking rod.
[0018]
The guide portion 26 is formed such that the length H1 from the rotation center O of the lock body 20 is shorter than the length H2 from the rotation center O of the lock body 20 to the regulating portion 25 as shown in FIG. When the restricting portion 25 engages with the horizontal rod portion 82 through the above, the circular support portion 92 of the elastic body 9 is bent by the difference between the lengths H1 and H2, and the restricting portion 25 engages with the horizontal rod portion 82. At this time, the circular support portion 92 is elastically restored. By doing so, the lock body 20 does not rotate unless the lock body 20 is rotated while bending the elastic body 9, so that the lock body 20 can be prevented from being carelessly rotated, and can be interlocked with the rod receiver 52. The connection state with the rod 8 can be reliably maintained.
[0019]
As shown in FIGS. 2 and 3, one end of the rod receiving body 52 facing the valve shaft 51 and the end of the lock body 20 on the fitting hole 21 side has one side facing the rotation direction of the lock body 20. An extended guide recess 55 is provided. On the other side, an engagement protrusion 27 that engages with the guide recess 55 and regulates a rotation range of the lock body 20 with respect to the rod receiver 52 is provided so as to protrude. At the middle in the length direction, there is provided a minute projection 56 which engages with the engagement projection 27 and temporarily stops the lock body 20 in the non-engagement state.
[0020]
The metering lever 6 has a square tubular base lever body 6A that is swingably supported by the pivot portion 13 formed integrally with the lever receiver 12, and is slidably supported inside the base lever body 6A. And a front lever body 6B having an operating portion 60 at an outwardly projecting portion. The front lever body 6B is largely protruded forward with respect to the back shoulder portion 1a, and the free end side operation is performed in a state where the worker is carrying the back. The part 60 is gripped so that the opening of the metering valve 5 can be swung further upward and beyond the opening adjustment area from an almost horizontal state upward.
[0021]
In the above configuration, when removing the spraying agent tank 4 from the blower 3, when the lock body 20 is rotated upward, the restricting portion 25 separates from the receiving recessed portion 53, and the horizontal rod portion of the interlocking rod 8 of the restricting portion 25. As a result, the entrance side of the receiving recess 53 is opened. Therefore, the interlocking rod can be easily taken out from the entrance of the receiving recessed portion 53.
[0022]
When the spraying agent tank 4 is attached to the blower 3, the lock rod 20 is rotated downward by inserting the horizontal rod portion 82 of the interlocking rod 8 from the entrance side of the receiving recessed portion 53 to the back and rotating the lock body 20 downward. The guide portion 26 of the body 20 is engaged with the horizontal rod portion 82, and subsequently, the restricting portion 25 is engaged with the horizontal rod portion 82, so that the horizontal rod portion 82 can be prevented from falling out of the receiving concave portion 53.
[0023]
In the above embodiment, the lock body 20 is configured to be rotatable with respect to the rod receiver 52. However, the lock body 20 may be configured to be slidable with respect to the rod receiver 52.
[0024]
Further, the metering device of the present invention may be provided not only in the backpack type spreader as in the embodiment but also in a spreader mounted or towed on a tractor or the like.
[Brief description of the drawings]
FIG. 1 is a perspective view of a metering device of the present invention.
FIG. 2 is a front view of the tuning amount device.
FIG. 3 is a sectional view taken along line XX of FIG. 2;
FIG. 4 is a sectional front view of a part of a sprayer equipped with a metering device.
FIG. 5 is a plan view of a sprayer equipped with a tuning amount device, in which a spray agent tank and a backpack are omitted.
FIG. 6 is a side sectional view of a part of a sprayer equipped with a tuning amount device.
[Explanation of symbols]
4 Spray agent tank 5 Metering valve 52 Rod receiver 53 Receiving recess 8 Interlocking rod 20 Locking body 25 Restrictor 9 Elastic body

Claims

散布剤タンク（４）内の散布剤を調量する調量弁（５）と、この調量弁（５）を操作する調量レバー（６）とを連動杆（８）を介して連動連結して成る散布機の調量装置において、調量弁（５）と一体に動作する杆受体（５２）と、該杆受体（５２）に対し相対運動可能なロック体（２０）とを備え、杆受体（５２）に、連動杆（８）の端部を受入れる受入凹入部（５３）を設けると共に、ロック体（２０）に、受入凹入部（５３）内の連動杆（８）と係合して該連動杆（８）の受入凹入部（５３）内での移動を規制する規制部（２５）を設けていることを特徴とする散布機の調量装置。A metering valve (5) for metering the spray agent in the spray agent tank (4) and a metering lever (6) for operating the metering valve (5) are interlocked via an interlocking rod (8). A metering device for a spreader, comprising: a rod receiver (52) operating integrally with a metering valve (5); and a lock body (20) movable relative to the rod receiver (52). The receiving rod (52) is provided with a receiving recess (53) for receiving the end of the interlocking rod (8), and the locking body (20) is provided with an interlocking rod (8) in the receiving recess (53). A metering device for a sprayer, characterized in that a regulating portion (25) for regulating the movement of the interlocking rod (8) in the receiving recessed portion (53) is provided.

ロック体（２０）は、弾性体（９）を介して支持され、弾性体（９）を撓ませながら規制部（２５）が受入凹入部（５３）内の連動杆（８）と係合するようにしている請求項１記載の散布機の調量装置。The lock body (20) is supported via the elastic body (9), and the restricting portion (25) engages with the interlocking rod (8) in the receiving recess (53) while bending the elastic body (9). 2. A metering device for a sprayer according to claim 1, wherein: