JP3644000B2 - Metering lever device for backpack spreader - Google Patents

Metering lever device for backpack spreader Download PDF

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Publication number
JP3644000B2
JP3644000B2 JP17150396A JP17150396A JP3644000B2 JP 3644000 B2 JP3644000 B2 JP 3644000B2 JP 17150396 A JP17150396 A JP 17150396A JP 17150396 A JP17150396 A JP 17150396A JP 3644000 B2 JP3644000 B2 JP 3644000B2
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Japan
Prior art keywords
metering
lever
guide
metering lever
valve
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JP17150396A
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Japanese (ja)
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JPH1014472A (en
Inventor
新治 渡辺
義弘 吉田
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Arimitsu Industry Co Ltd
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Arimitsu Industry Co Ltd
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Priority to JP17150396A priority Critical patent/JP3644000B2/en
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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背負式散布機の調量レバー装置に関する。
【0002】
【従来の技術】
従来、実公平6ー34843号公報に記載されているように、背負式散布機において、枢支部を中心とする上下方向の揺動操作で調量弁を開閉動作させる調量レバーと、該調量レバーを案内するレバーガイドとは、背負い部の下端で、その左右一側に装着されている。また、調量レバーは、背負部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調量レバーの自由端側操作部を把持して上下方向に揺動操作できるようにしており、また、レバーガイドは、上下方向に延びて調量弁の開度調節領域を設定するガイド条孔を備え、このガイド条孔に調量レバーを挿通して、該調量レバーを前記開度調節領域内でのみ揺動可能にしている。
【0003】
【発明が解決しようとする課題】
ところが、この従来のものにおいて、調量弁の開度調節領域を設定するガイド条孔の位置及び長さは、該ガイド条孔に挿通する調量レバーの自由端側操作部を背負い状態で容易に揺動操作が行える位置及び長さに制約されるから、未使用時に調量レバーをガイド条孔の下端又は上端に揺動させた状態においても、該調量レバーが他の部材に対し前方に大きく突出することになる。従って、散布機の梱包ケースが大形となり、梱包ケースのコストが高くなると共に、嵩高となって搬送効率が悪くなり、さらに未使用時に調量レバーが邪魔となる不具合があった。本発明は、調量レバーにより調量弁の開度調節ができて、しかも、未使用時に調量レバーが外方に突出するのを簡易に防ぐことができる調量レバー装置を提供することを主たる目的とする。
【0004】
【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、散布剤タンク内の散布剤の排出量を調量する調量弁を動作させる調量レバーと、該調量レバーが枢支される枢支部を有し、前記調量レバーの揺動を案内するレバーガイドとを備えた背負式散布機の調量レバー装置において、前記調量レバーは、前記調量弁の開度調節領域及び該開度調節領域を越えて上方へ揺動可能であり、前記レバーガイドは、前記調量レバーの前記開度調節領域での揺動を許容する調量ガイド部と、該調量ガイド部を越えて上方側への揺動を許容する格納ガイド部とを有しており、前記枢支部に枢着され、前記調量レバーに当接して該調量レバーの揺動上限を段階的に規制すべき上限規制体を備えることを特徴とする。
【0005】
【発明の作用効果】
請求項1記載の発明では、背負い状態で散布作業を行う場合、調量レバーを、レバーガイドの調量ガイド部において開度調節領域内で調量操作することができるから、背負い状態で調量レバーを容易に操作できるのであり、しかも、この調量レバーは、レバーガイドの調量ガイド部を越えてさらに上方側の格納ガイド部に揺動させることができるから、未使用時には、調量レバーを、調量ガイド部を越えて格納ガイド部に揺動させるだけの簡単な操作で、調量レバーを格納でき、該調量レバーが外方に突出するのを簡易に防ぐことができるのである。この結果、散布機の梱包ケースを小形にでき、梱包ケースのコストを低減できると共に、嵩低にできて搬送効率を良好にでき、さらに未使用時に調量レバーが邪魔となるのを防止できるのである。
【0006】
【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。
【0007】
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4を構成してもよい。
【0008】
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32と、この送風通路32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33とを備え、送風通路32の出口にエルボ管10を介して噴管を着脱可能に接続するようにしている。
【0009】
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、ロッドから成る連結部材14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。
【0010】
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A及び該開度調節領域Aを越えてさらに上方に揺動可能にしている。
【0011】
基レバー体6Aには、枢支部13に対し一方側の両側部に、長さ方向に延びるガイド孔61を設け、他方側下部に、長さ方向に所定間隔をおいて複数個の規制凹部62を設けると共に、この他方側の内側部に、前記レバーガイド7に形成される位置決め凹部の一つに選択的に係合する合成樹脂製の弾性変位可能な位置決め体15を設けている。
【0012】
また、先レバー体6Bには、前記枢支部13を受入れる長孔63を設けて、基レバー体6Aに対しスライド自在にすると共に、長孔63に対し操作部60と反対側端部に、前記枢支部13の軸心と並行で前記ガイド孔61に突入する連結ピン16を回動自在に保持し、この連結ピン16の一端部に、前記連結部材14の下端部を枢支ピン17を介して相対回転可能に連結し、先レバー体6Bの基レバー体6Aに対するスライド時、前記連結ピン16がガイド孔61に沿って移動して、連結部材14の先レバー体6Bへの連結点と、基レバー体6Aの枢支点との間の長さHを変更できるようにしている。さらに、先レバー体6Bの長孔63に対し操作部60側には、前記規制凹部62の一つと選択的に係合する合成樹脂製の弾性変位可能な係合体18を設けている。
【0013】
前記レバーガイド7は、前記枢支部13とともにレバー受体12と一体に形成されるのであって、調量レバー6の揺動方向に沿って前記枢支部13を中心とする略四半円形を呈し、調量レバー6との対向内面で、水平に近い下端部に、調量レバー6を水平に近い状態に停止させるストッパ71を設けると共に、このストッパ71から上方の所定角内で調量レバー6の前記開度調節領域Aでの揺動を許容する調量ガイド部7Aと、この調量ガイド部7Aを越えて上方側への揺動を許容する格納ガイド部7Bとを設けている。調量ガイド部7Aには、前記位置決め体15に係合して調量レバー6の揺動角を設定する複数個の第1位置決め凹部72と、前記枢支部13の自由端部に枢着する上限規制体19と係合して調量レバー6の揺動上限を段階的に設定する複数個の規制凹部73とを設け、また、格納ガイド部7Bの終端部には、前記位置決め体15に係合して調量レバー6を垂直に近い格納状態に停止させる第2位置決め凹部74を設けている。
【0014】
前記上限規制体19は、前記枢支部13の自由端部に枢着するアーム部19aと、該アーム部19aの自由端から屈曲する筒部19bとにより略L字形に形成され、筒部19b内に、コイルバネにより筒部19bから突出方向に付勢された係止ピン19cを保持し、該係止ピン19cを、その一端に形成された摘みを持って進退動作させるようにしている。
【0015】
以上の構成において、調量レバー6の先レバー体6Bは背負部1aに対し前方に大きく突出しているため、背負い状態で散布作業を行うとき、調量レバー6における先レバー体6Bの操作部60を把持して調量ガイド部7A領域内で揺動操作することにより、該先レバー体6Bと基レバー体6Aとが一体の状態で揺動し、調量弁5の開度を任意に調節できるのであり、このとき、位置決め体15が第1位置決め凹部72の一つと選択的に係合して、調量レバー6の操作位置、ひいては調量弁5の弁開度を維持できる。
【0016】
また、背負い状態で把持している先レバー体6Bを基レバー体6Aに対し作業者の前後にスライド操作することにより、連結部材14の先レバー体6Bとの連結点と基レバー体6Aの枢支点との間の長さHを変更でき、調量レバー6の揺動角に対する調量弁5の開度を変更できるのである。従って、背負い状態で散布作業を行うときにおいても、調量レバー6を把持した状態で調量レバー6に対する弁開度を容易に、かつ正確に変更できるのである。このとき、係合体18が規制凹部62の一つと選択的に係合して、先レバー体6Bが基レバー体6Aと一体化する。
【0017】
また、散布機を出荷するときの梱包或いは散布作業終了後に格納するとき、調量レバー6を、レバーガイド7の調量ガイド部7Aを越えてさらに上方側の格納ガイド部7Bに揺動させるのである。従って、調量レバー6を、少なくとも枢支側部分が垂直に近い状態となるように格納することができるから、調量レバー6が外方に突出するのを簡易に防ぐことができ、散布機の梱包ケースを小形にでき、梱包ケースのコストを低減できると共に、嵩低にできて搬送効率を良好にでき、さらに未使用時に調量レバー6が邪魔となるのを防止できるのである。
【0018】
尚、以上の実施形態では、調量レバー6を、基レバー体6Aと先レバー体6Bとで構成しているが、その他基レバー体6Aと先レバー体6Bとを一体とした構成でもよい。
【図面の簡単な説明】
【図1】本発明調量装置の縦断正面図。
【図2】同調量装置の横断平面図。
【図3】同上限規制体部分での断面図。
【図4】調量装置を装備した背負式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一部を断面した側面図。
【図6】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。
【符号の説明】
5 調量弁
6 調量レバー
7 レバーガイド
7A 調量ガイド部
7B 格納ガイド部
13 枢支部
A 開度調節領域
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a metering lever device for a backpack-type spreader that sprays a spray agent such as a medicine or fertilizer to a field or the like.
[0002]
[Prior art]
Conventionally, as described in Japanese Utility Model Publication No. 6-34843, in a backpack type spreader, a metering lever that opens and closes a metering valve by a swinging operation in a vertical direction around a pivotal support, The lever guide for guiding the quantity lever is attached to one of the left and right sides of the lower end of the shoulder portion. In addition, the metering lever is made to protrude largely forward with respect to the backpack part so that the operator can carry it swinging up and down by gripping the free end side operation part of the metering lever, The lever guide includes a guide hole that extends in the vertical direction to set an opening adjustment region of the metering valve, and the metering lever is inserted into the guide hole to adjust the opening of the metering lever. It can be swung only within the area.
[0003]
[Problems to be solved by the invention]
However, in this conventional one, the position and length of the guide hole that sets the opening adjustment region of the metering valve can be easily set while carrying the free end side operation portion of the metering lever inserted through the guide hole. Therefore, even when the metering lever is swung to the lower end or the upper end of the guide hole when not in use, the metering lever moves forward with respect to other members. Will protrude greatly. Therefore, the packing case of the spreader becomes large, and the cost of the packing case becomes high, and it becomes bulky and the conveyance efficiency is deteriorated. Further, there is a problem that the metering lever becomes an obstacle when not in use. The present invention provides a metering lever device that can adjust the opening of a metering valve by a metering lever and that can easily prevent the metering lever from protruding outward when not in use. Main purpose.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, as shown in FIG. 1, a metering lever for operating a metering valve for metering the discharge amount of the spray agent in the spray agent tank as shown in FIG. And a metering lever device of a backpack type spreader comprising a lever guide for pivoting the metering lever, and a lever guide for guiding the swinging of the metering lever. An opening adjustment region of the metering valve and an upward adjustment region that can swing upward, and the lever guide is a metering that allows the metering lever to swing in the opening adjustment region. A guide portion and a storage guide portion that allows upward swinging beyond the metering guide portion, and is pivotally attached to the pivot portion and contacts the metering lever. An upper limit regulating body that regulates the swing upper limit of the lever stepwise is provided.
[0005]
[Effects of the invention]
According to the first aspect of the present invention, when the spraying operation is performed in the backpack state, the metering lever can be metered in the opening adjustment region in the metering guide portion of the lever guide. The lever can be easily operated, and the metering lever can be swung to the upper storage guide part beyond the metering guide part of the lever guide. The metering lever can be stored with a simple operation by simply swinging the metering guide over the metering guide part, and the metering lever can be easily prevented from protruding outward. . As a result, the packing case of the spreader can be reduced in size, the cost of the packing case can be reduced, the bulk can be reduced, the conveyance efficiency can be improved, and the metering lever can be prevented from being obstructed when not in use. is there.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
4 to 6 is provided with an engine 2 on the back side of a back frame 1 having a back portion 1a carried by a worker on the back, and a horizontally long spray agent receiving port 31 on the upper side. A blowing device 3 having a spray agent inlet 41 at the top and a horizontally long bottom is detachably mounted above the blower 3.
[0007]
The spray agent tank 4 has a substantially funnel shape squeezed from the top inlet 41 side toward the bottom, and is detachably inserted into the tank body 4A having an open bottom and the bottom of the tank body 4A from below. It comprises a square ring-shaped valve box 4B to be fitted and supported, and both the left and right sides of the tank body 4A and the valve box 4B are detachably coupled with inverted U-shaped bolts 42 and nuts 43, and the valve box 4B. The metering valve 5 for metering the spraying agent in the spraying agent tank 4 and supplying it to the receiving port 31 is freely opened and closed via a lateral valve shaft 51 on the inner side of the downward projecting portion from the tank body 4A. Provided. In addition, you may comprise the spray agent tank 4 by uniting the tank main body 4A and the valve box 4B.
[0008]
The blower 3 includes a fan 3A driven by the engine 2 and a fan case 3B in which the fan 3A is built. In the fan case 3B, a blower passage 32 extending around the fan 3A, and this A spray agent supply passage 33 communicating with the spray agent receiving port 31 from near the outlet of the air passage 32 is provided, and the jet tube is detachably connected to the outlet of the air passage 32 via the elbow pipe 10.
[0009]
A lever receiver 12 is attached to the lower side of the fan case 3B. The lever receiver 12 is provided with a metering lever 6 that can swing in the vertical direction about a pivot 13 formed of a horizontal axis. A lever guide 7 that guides the amount lever 6 is mounted, and a counter-operation portion side end portion of the metering lever 6 and a hook receiving body 52 projecting from the end portion of the valve shaft 51 are connected to the connecting member 14 formed of a rod. And the metering valve 5 is opened and closed by swinging the metering lever 6 in the vertical direction.
[0010]
The metering lever 6 is supported by the pivot 13 formed integrally with the lever receiver 12 so as to be swingable. The metering lever 6 is slidably supported inside the base lever body 6A. The front lever body 6B having an operation portion 60 on the outward projecting portion is provided. The front lever body 6B is largely projected forward with respect to the backpack portion 1a, and the free end side operation is performed in a state where the operator carries the back. The portion 60 is gripped so that it can swing further upward beyond the opening adjustment region A of the metering valve 5 and beyond the opening adjustment region A from a state close to horizontal.
[0011]
The base lever body 6A is provided with guide holes 61 extending in the length direction on both side portions on one side with respect to the pivot support portion 13, and a plurality of restriction recesses 62 at a predetermined interval in the length direction on the other side lower portion. And an elastically displaceable positioning body 15 made of synthetic resin that selectively engages with one of the positioning recesses formed in the lever guide 7.
[0012]
Further, the front lever body 6B is provided with a long hole 63 for receiving the pivotal support portion 13 so as to be slidable with respect to the base lever body 6A, and at the end opposite to the operation portion 60 with respect to the long hole 63, A connecting pin 16 that protrudes into the guide hole 61 in parallel with the axis of the pivotal support 13 is rotatably held, and a lower end of the coupling member 14 is connected to one end of the coupling pin 16 via a pivotal pin 17. When the front lever body 6B slides relative to the base lever body 6A, the connection pin 16 moves along the guide hole 61, and the connection point of the connection member 14 to the front lever body 6B, The length H between the pivot point of the base lever body 6A can be changed. Further, an elastically displaceable engagement body 18 made of synthetic resin that selectively engages with one of the restriction recesses 62 is provided on the operation portion 60 side with respect to the elongated hole 63 of the tip lever body 6B.
[0013]
The lever guide 7 is formed integrally with the lever receiver 12 together with the pivot portion 13, and has a substantially quarter circle centered on the pivot portion 13 along the swinging direction of the metering lever 6. A stopper 71 for stopping the metering lever 6 in a nearly horizontal state is provided on the inner surface facing the metering lever 6 near the horizontal, and the metering lever 6 is disposed within a predetermined angle above the stopper 71. A metering guide portion 7A that allows swinging in the opening adjustment region A and a storage guide portion 7B that allows swinging upward beyond the metering guide portion 7A are provided. The metering guide portion 7A is pivotally attached to a plurality of first positioning recesses 72 that engage with the positioning body 15 to set the swing angle of the metering lever 6 and the free end portion of the pivot support portion 13. A plurality of restricting recesses 73 that are engaged with the upper limit restricting body 19 to set the swing upper limit of the metering lever 6 in stages are provided, and the end of the storage guide portion 7B is connected to the positioning body 15. A second positioning recess 74 is provided that engages and stops the metering lever 6 in a retracted state close to vertical.
[0014]
The upper limit restricting body 19 is formed in a substantially L shape by an arm portion 19a pivotally attached to the free end portion of the pivot portion 13 and a cylindrical portion 19b bent from the free end of the arm portion 19a. Further, the locking pin 19c urged in the protruding direction from the cylindrical portion 19b by the coil spring is held, and the locking pin 19c is moved forward and backward with a knob formed at one end thereof.
[0015]
In the above configuration, the tip lever body 6B of the metering lever 6 projects greatly forward with respect to the backpack 1a. Therefore, when performing a spraying operation in a backpacked state, the operating portion 60 of the tip lever body 6B in the metering lever 6 is used. And the tip lever body 6B and the base lever body 6A swing together to adjust the opening of the metering valve 5 arbitrarily. At this time, the positioning body 15 selectively engages with one of the first positioning recesses 72, and the operation position of the metering lever 6 and thus the valve opening of the metering valve 5 can be maintained.
[0016]
Further, by sliding the tip lever body 6B gripped in the back-and-forth direction with respect to the base lever body 6A, the operator can move the connecting point of the connecting member 14 with the tip lever body 6B and the pivot of the base lever body 6A. The length H between the fulcrum can be changed, and the opening degree of the metering valve 5 with respect to the swing angle of the metering lever 6 can be changed. Therefore, even when the spraying operation is carried out in a backpacked state, the valve opening relative to the metering lever 6 can be easily and accurately changed while the metering lever 6 is held. At this time, the engagement body 18 selectively engages with one of the restriction recesses 62, and the leading lever body 6B is integrated with the base lever body 6A.
[0017]
Further, when storing the spreader after packing or after the completion of the spraying operation, the metering lever 6 is swung over the metering guide portion 7A of the lever guide 7 to the upper storage guide portion 7B. is there. Accordingly, since the metering lever 6 can be stored so that at least the pivot side portion is in a nearly vertical state, it is possible to easily prevent the metering lever 6 from protruding outward. The packaging case can be reduced in size, the cost of the packaging case can be reduced, the bulk can be reduced, the conveyance efficiency can be improved, and the metering lever 6 can be prevented from interfering when not in use.
[0018]
In the above embodiment, the metering lever 6 is constituted by the base lever body 6A and the tip lever body 6B. However, the base lever body 6A and the tip lever body 6B may be integrated.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view of a metering device of the present invention.
FIG. 2 is a cross-sectional plan view of the tuning amount device.
FIG. 3 is a cross-sectional view of the upper limit restrictor portion.
FIG. 4 is a front view of a cross-section of a part of a backpack-type spreader equipped with a metering device.
FIG. 5 is a side view of a part of a spreader equipped with a tuning amount device.
FIG. 6 is a plan view in which a spray agent tank and a backpack portion of a spreader equipped with a tuning device are omitted.
[Explanation of symbols]
5 Metering valve 6 Metering lever 7 Lever guide 7A Metering guide part 7B Storage guide part 13 Pivoting part A Opening adjustment region

Claims (1)

散布剤タンク内の散布剤の排出量を調量する調量弁を動作させる調量レバーと、該調量レバーが枢支される枢支部を有し、前記調量レバーの揺動を案内するレバーガイドとを備えた背負式散布機の調量レバー装置において、前記調量レバーは前記調量弁の開度調節領域及び該開度調節領域を越えて上方揺動可能であり、前記レバーガイドは前記調量レバーの前記開度調節領域での揺動を許容する調量ガイド部と調量ガイド部を越えて上方側への揺動を許容する格納ガイド部と有しており、前記枢支部に枢着され、前記調量レバーに当接して該調量レバーの揺動上限を段階的に規制すべき上限規制体を備えることを特徴とする背負式散布機の調量レバー装置。 A metering levers for operating the metering valve for metering the emission of dusting powder dusting powder tank has a pivot portion which該調amount lever is pivotally supported, guided rocking of the metering lever in the metering lever device backpack sprayer equipped with a Rebagai de to the metering levers are swung upwards beyond the opening adjustment territory Iki及 beauty-opening degree adjusting area of the metering valve are possible, the Rebagai de is permissible and metering guide unit that allows the swing in the opening adjustment area of the metering levers, the swinging of the upper side beyond the metering guide portion And a storage guide portion that is pivotally attached to the pivot support portion and includes an upper limit regulating body that abuts against the metering lever and regulates the swing upper limit of the metering lever in a stepwise manner. A metering lever device for a backpack spreader.
JP17150396A 1996-07-01 1996-07-01 Metering lever device for backpack spreader Expired - Fee Related JP3644000B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17150396A JP3644000B2 (en) 1996-07-01 1996-07-01 Metering lever device for backpack spreader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17150396A JP3644000B2 (en) 1996-07-01 1996-07-01 Metering lever device for backpack spreader

Publications (2)

Publication Number Publication Date
JPH1014472A JPH1014472A (en) 1998-01-20
JP3644000B2 true JP3644000B2 (en) 2005-04-27

Family

ID=15924322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17150396A Expired - Fee Related JP3644000B2 (en) 1996-07-01 1996-07-01 Metering lever device for backpack spreader

Country Status (1)

Country Link
JP (1) JP3644000B2 (en)

Also Published As

Publication number Publication date
JPH1014472A (en) 1998-01-20

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