JPH0451890Y2

JPH0451890Y2 -

Info

Publication number: JPH0451890Y2
Application number: JP1986123568U
Authority: JP
Priority date: 1986-08-11
Filing date: 1986-08-11
Publication date: 1992-12-07
Also published as: JPS6332662U

Description

[Detailed explanation of the idea] [Industrial application field]

この考案は背負型防除作業機に関し、さらに詳
しくは、背負型の防除作業機であつて作業者の背
中部分の通気性向上のために改良を施した防除作
業機に関する。 This invention relates to a backpack-type pest control work machine, and more specifically, to a backpack-type pest control work machine that has been improved to improve ventilation in the back area of the worker.

[Conventional technology]

背負型の防除作業機は、小型のエンジンで駆動
されるブロワの送風に載せて液体、粉粒体の薬剤
や肥料等を散布するようにしたもので、エンジ
ン、ブロワなどの作業機本体は背負枠に搭載され
ていて、作業者はこの背負枠を介して作業機を背
負つて作業を行う。圃場における防除作業は初夏から盛夏にかけて
無風時に最も頻繁に行われ、その時期は作業者に
とつての気温上の作業環境はきわめて悪い。作業者は、暑い中、軽量化されたとはいえ重い
作業機を背負い、広い圃場を歩きながらえの作業
であるために、その背中には相当の発汗がある。この汗で不快感が増し、加えて汗が引金となつ
て、皮膚に薬肥剤が付着した場合に炎症を起した
り、薬害を誘引することがあつた。そこで、作業機を背負つた作業者の背中部分に
ブロワの吸引力を利用して通気性を与え、発汗し
てもその汗が直ちに気化するようにしたものが知
られている。例えば、実開昭59−2449号公報に示
されたものを挙げることができる。 A backpack-type pest control work machine is a device that is placed on the air blower of a blower driven by a small engine, and is used to spread liquid or powdered chemicals or fertilizers. The machine is mounted on a frame, and the worker carries the work machine on his/her back via this backpack frame while working. Pest control work in fields is most frequently carried out from early summer to midsummer when there is no wind, and during this period the working environment for workers in terms of temperature is extremely poor. Workers sweat heavily on their backs as they work in the heat while walking across large fields carrying heavy, albeit lightweight, work equipment on their backs. This sweat increases the discomfort, and in addition, if the sweat becomes a trigger and the fertilizer adheres to the skin, it can cause inflammation or induce chemical damage. Therefore, there is a known system that uses the suction power of a blower to provide ventilation to the back of a worker carrying a work machine, so that even if the worker sweats, the sweat evaporates immediately. For example, the method disclosed in Japanese Utility Model Application Publication No. 59-2449 can be mentioned.

[Problem that the invention attempts to solve]

上述のような防除作業機（あるいは薬剤散布
機）は、エンジンで駆動されるブロワの吸込口が
作業者の背中と対向する位置にあつて、背負枠に
設けた背当てパツドに形成してある凹凸条の凹条
部分に穿けた複数の通気孔からブロワの吸込口に
空気が流れることで、作業者の背中部分の通気性
を促したものである。ところが、ブロワの吸込口は小さく、背当てパ
ツドは広いので、作業者の背中全域にわたつてブ
ロワの吸込作用を期待することができず、背当て
パツドの通気孔を通る通気があつてもわずか吸込
口径に相当する領域の通気孔が機能するだけであ
つて、他の通気孔からは吸込気流が流れ込まず、
背中全域の発汗による不快感を払拭することがで
きない問題があつた。 In the above-mentioned pest control work machine (or chemical spray machine), the suction port of the blower driven by the engine is located at a position facing the back of the worker, and is formed on a back pad provided on the back frame. Air flows into the blower's suction port through a plurality of ventilation holes drilled in the concave and convex portions of the concave and convex strips, thereby promoting ventilation of the back area of the worker. However, since the blower's suction port is small and the back pad is wide, it is not possible to expect the blower's suction action to cover the entire back area of the worker, and even if there is ventilation through the ventilation hole in the back pad, there is only a small amount of airflow. Only the ventilation holes in the area corresponding to the suction port diameter function, and no suction airflow flows from other ventilation holes.
There was a problem in that it was not possible to eliminate the discomfort caused by sweating all over the back.

[Means to solve the problem]

そこで、この考案は作業者の背中に当つている
背当てパツド全面にわたつて通気性を与えて、背
中の発汗による不快感を解消しようとするもの
で、そのために、ブロワにおける吸込口の背当て
パツド面への投影領域外に存在する背当てパツド
に穿けた通気孔に対し、背負枠の背負部に、ブロ
ワの吸込口投影領域外から投影領域まで通風誘導
部を形成し、作業者の背中全域にわたつて通気性
を与えるように構成したことを特徴とするもので
ある。 Therefore, this idea aims to eliminate the discomfort caused by sweating on the back by providing breathability over the entire surface of the back pad that is in contact with the back of the worker. For ventilation holes drilled in the back pad that exist outside the projection area on the pad surface, a ventilation guide part is formed on the back part of the backpack frame from outside the projection area of the blower suction port to the projection area, and It is characterized by being configured to provide breathability over the entire area.

【Example】

以下、この考案の実施例を添付した図面に沿つ
て説明する。図において符号１はブロー成形され
た背負枠を示し、この背負枠１の搭載部１Ａ上に
はエンジン２、このエンジン２の出力で駆動され
るブロア３が搭載されており、このブロア３の上
部空間には薬肥タンク４が位置している。前記ブロワ３の吸込口３Ａは背負枠１の背枠部
１Ｂと若干の間隙を置いて位置し、作業者の背と
対向するようになつている。背負枠１の背枠部１Ｂの上端部中央には、背負
バンドの上端部を係止すると共に、提手の機能を
もつバンド通し部１１が形成されており、このバ
ンド通し部１１と一体に燃料タンク１２が形成さ
れている。この燃料タンク１２は背枠部１Ｂに沿
つて下方に延び、その最低部がエンジンのキヤブ
レータのフロートチヤンバのレベルより若干上方
に位置している。そして、背負枠１の背枠部１Ｂにおける作業者
の背と対向する部分にはブロワの吸込口に略対応
した大きさの窓孔１３が穿けられており、この窓
孔１３の両側には、窓孔１３側の端部が開口１４
Ａとして開放されると共に、背枠部１Ｂの両側寄
り端部が閉塞された半円筒状の通風誘導部を形成
する誘導板１４が設けられている。この誘導板１
４で囲まれる空間は作業者の背側に開放しておつ
て誘導口１４Ｂを形成するようになつている。この誘導口１４Ｂは後で述べる背当てパツド
と、これに穿けた空気孔との関係で定められる。背枠部１Ｂにはその作業者の背側に背当てパツ
ド５が取付けられ、この背当てパツド５は通常人
の体形における背の大きさを網羅できるものにな
つており、ウレタンフオームなどの弾性材を被つ
て形成される。この背当てパツド５には、作業者の背に直接接
触する複数本の凸条５Ａが形成され、これら凸条
５Ａ間は凹条５Ｂになつており、この凹条５Ｂの
上下両端部は開放状態になつている。これらの凹条５Ｂには、その長さ方向に沿つて
複数の通気孔５Ｘが穿けられており、これらの通
気孔５Ｘのうち中央部分のものは背枠部１Ｂの窓
孔１３の領域に含まれていて、両側の通気孔５
X₁は前記通風誘導部に重なり合うことができる
ようになつていて、通風孔５X₁が通風誘導部の
誘導口１４Ｂを規定している。この背当てパツド５は、その四隅に穿けてある
止具孔５１と、前記背枠部１Ｂに穿けてある固定
孔１５とを合せて止具を押込むことで背負枠１の
背枠部１Ｂに取付けられる。上述のような防除作業機において、これを作業
者が背負いブロワを運転して作業を行う場合、ブ
ロワ３の吸込口３Ａに吸込まれる空気は背枠部１
Ｂとブロワ３との間隙から主に流れ込むと共に、
一部は背当てパツド５と作業者の背との間の空間
である凹条５Ｂを流れ、該凹条５Ｂに穿けてある
通気孔５Ｘを通つて流れ込む。この場合、吸込口３Ａの背当てパツド５に作用
する吸込力は吸込口３Ａ投影領域が最も強く、周
囲になる程弱くなるのであるが、吸込口３Ａの投
影領域外の通気孔５X₁に対し、背負枠１の背負
部１Ｂに、ブロワ３の吸込口３Ａ投影領域外から
投影領域まで通風誘導部が形成されているので、
ブロワ３の吸引力をその周辺まで拡大して、作業
者の背中全域にわたつて通気し、冷却する。 Embodiments of this invention will be described below with reference to the attached drawings. In the figure, reference numeral 1 indicates a blow-molded backpack frame, and an engine 2 and a blower 3 driven by the output of the engine 2 are mounted on the mounting portion 1A of the backpack frame 1. A medicinal fertilizer tank 4 is located in the space. The suction port 3A of the blower 3 is positioned with a slight gap from the back frame portion 1B of the backpack frame 1, and faces the back of the worker. At the center of the upper end of the back frame portion 1B of the backpack frame 1, there is formed a band pass-through portion 11 that locks the top end of the backpack band and also has the function of a handle. A fuel tank 12 is formed. The fuel tank 12 extends downward along the back frame portion 1B, and its lowest portion is located slightly above the level of the float chamber of the engine's carburetor. A window hole 13 of a size approximately corresponding to the suction port of the blower is bored in the back frame portion 1B of the backpack frame 1 in the part facing the back of the worker, and on both sides of this window hole 13, The end on the window hole 13 side is the opening 14
A guide plate 14 is provided which forms a semi-cylindrical ventilation guide section which is open as A and whose ends on both sides of the back frame section 1B are closed. This guide plate 1
The space surrounded by 4 is open to the back side of the worker and forms a guide port 14B. This guide port 14B is determined by the relationship between the back pad and the air hole bored therein, which will be described later. A back support pad 5 is attached to the back frame portion 1B on the back side of the worker. It is formed by covering the material. This back pad 5 is formed with a plurality of protrusions 5A that directly contact the back of the worker, and between these protrusions 5A are grooves 5B, and both upper and lower ends of the grooves 5B are open. It is becoming a state. These grooves 5B are provided with a plurality of ventilation holes 5X along their length, and the central portion of these ventilation holes 5X is included in the area of the window hole 13 of the back frame portion 1B. vents 5 on both sides.
X ₁ is designed to be able to overlap the ventilation guide section, and the ventilation hole 5X ₁ defines the guide port 14B of the ventilation guide section. This back pad 5 can be assembled into the back frame portion 1B of the back frame 1 by aligning the fastener holes 51 drilled at its four corners with the fixing holes 15 drilled in the back frame portion 1B and pushing in the fasteners. mounted on. In the above-mentioned pest control work machine, when a worker carries this on his back and operates the blower, the air sucked into the suction port 3A of the blower 3 flows through the back frame 1.
It mainly flows from the gap between B and blower 3, and
A portion flows through the groove 5B, which is the space between the back pad 5 and the back of the worker, and flows through the ventilation hole 5X formed in the groove 5B. In this case, the suction force acting on the back pad 5 of the suction port 3A is strongest in the projected area of the suction port 3A, and becomes _weaker as it gets closer to the periphery. , Since a ventilation guide part is formed on the back part 1B of the back frame 1 from outside the projection area of the suction port 3A of the blower 3 to the projection area,
The suction force of the blower 3 is expanded to the surrounding area to ventilate and cool the entire back of the worker.

[Effect of the idea]

以上の説明から明らかなように、この考案の背
負型防除作業機は、背当てパツドに通気孔を穿
け、この通気孔のうち、ブロワの吸込口の周辺部
に位置するものに対し、背負枠の背負部に、ブロ
ワの吸込口投影領域外から投影領域まで通風誘導
部を形成したから、ブロワの吸込口投影領域に位
置する通気孔と同様に吸引力を作用させることが
でき、作業者の背中全域にわたつての均一な通
気、冷却を促進することができる。 As is clear from the above explanation, the backpack-type pest control work machine of this invention has ventilation holes in the back pad, and the ventilation holes located around the blower suction port are connected to the backpack frame. Since a ventilation guide part is formed on the back of the worker from outside the projected area of the blower's suction port to the projected area, it is possible to apply suction force in the same way as the ventilation hole located in the projected area of the blower's suction port. It can promote uniform ventilation and cooling throughout the entire back.

[Brief explanation of the drawing]

添付図面はこの考案の一実施例を示し、第１図
は背負型防除作業機の側面図、第２図は背負枠の
正面図、第３図は背当てパツドの正面図、第４図
は第１図−線に沿う断面図、第５図は第４図
−線に沿う断面図、第６図は第５図−線
に沿う部分断面図である。１……背負枠、１Ａ……搭載部、１Ｂ……背枠
部、１１……バンド通し部、１２……燃料タン
ク、１３……窓孔、１４……誘導板、１４Ａ……
開口、１４Ｂ……誘導口、２……エンジン、４…
…薬肥タンク、３……ブロワ、３Ａ……吸込口、
５……背当てパツド、５Ａ……凸条、５Ｂ……凹
条、５Ｘ……通気孔（全体）、５X₁……両側の通
気孔。 The attached drawings show an embodiment of this invention, and Fig. 1 is a side view of the backpack-type pest control work machine, Fig. 2 is a front view of the backpack frame, Fig. 3 is a front view of the back pad, and Fig. 4 is a side view of the backpack-type pest control work machine. FIG. 5 is a cross-sectional view taken along the line of FIG. 1, FIG. 5 is a cross-sectional view taken along the line of FIG. 4, and FIG. 6 is a partial cross-sectional view taken along the line of FIG. 1...back frame, 1A...loading section, 1B...back frame section, 11...band passage section, 12...fuel tank, 13...window hole, 14...guide plate, 14A...
Opening, 14B... Induction port, 2... Engine, 4...
...Medical fertilizer tank, 3...Blower, 3A...Suction port,
5...Back pad, 5A...Convex strip, 5B...Concave strip, 5X...Vent hole (overall), 5X ₁ ...Vent hole on both sides.

Claims

[Scope of utility model registration request]

In backpack-type pest control work equipment, which has multiple ventilation holes in the back pad of the backpack frame on which the main body of the pest control work machine, which consists of an engine, a blower, etc., is mounted, the back rest pad of the blower suction port is 1. A backpack-type pest control work machine, characterized in that a ventilation hole existing outside the projection area of the backpack frame is provided with a ventilation guide part on the back part of the backpack frame from outside the projection area of the blower's suction port to the projection area.