JPH0110550Y2

JPH0110550Y2 -

Info

Publication number: JPH0110550Y2
Application number: JP1984158434U
Authority: JP
Priority date: 1984-10-22
Filing date: 1984-10-22
Publication date: 1989-03-27
Also published as: JPS6173991U

Description

【考案の詳細な説明】〔産業上の利用分野〕この考案は、エンジンに駆動されるフアンケー
スの吸入口と直交する側縁に断面が球形状の膨出
部を形成し、この膨出部内へ筒部付の中空状部材
の球形部を回動自在に嵌合し、フアンケースで発
生される加圧風により所望位置に回動された前記
中空状部材を当該位置に設定・保持可能にして、
吐出される加圧風の吐出方向を簡易に選択でき、
しかも吐出側における蛇腹管の使用を必要としな
い可搬式エンジンブロアーの吐出口に関するもの
である。[Detailed description of the invention] [Field of industrial application] This invention forms a bulge with a spherical cross section on the side edge of a fan case driven by an engine perpendicular to the intake port, and A spherical part of a hollow member with a cylindrical part is rotatably fitted, and the hollow member rotated to a desired position by pressurized air generated by a fan case can be set and held at the desired position. hand,
The discharge direction of the pressurized air can be easily selected,
Moreover, the present invention relates to a discharge port of a portable engine blower that does not require the use of a bellows pipe on the discharge side.

[Conventional technology]

可搬式のエンジンブロアーにおいては、第５図
にみるように、曲り管１の吐出口は一般的にはそ
の断面が円形であり、この曲り管１の吐出口に接
続した蛇腹管２に直噴管３、曲噴頭４等を順次、
連結し、エンジン５を付設せるフアンケース６に
おいて発生せる加圧風を蛇腹管２を経て所望個所
から噴出しているが、加圧風の噴出方向を変更す
るには、通常、蛇腹管２の向きを変更するか、も
しくはエンジンブロアー自体の向きを変更してい
た。しかして蛇腹管２による方向変更の場合にあ
つては、蛇腹状の「ひだ」２¹の数が余りに少け
れば方向変更が困難もしくは不可能となるので、
「ひだ」２¹の数を多くして方向変更を行なうこと
になるが、その反面、取扱にくくなり、また蛇腹
管２を急激に屈曲したとき、横断面の円形が楕円
形もしくは長方形、さらには通気不能な程度の歪
曲せる形態になり加圧風の流動を著しく阻害する
一方、エンジンブロアー自体の向きを変えるに
は、可搬式のものにあつては作業者に徒らな心身
上の疲労を早期に招く上に、その取扱に難渋し、
煩雑感を伴う等の問題点があつた。 In a portable engine blower, as shown in Fig. 5, the outlet of the bent pipe 1 generally has a circular cross section, and direct injection is carried out into the bellows pipe 2 connected to the outlet of the bent pipe 1. Pipe 3, curved head 4, etc. in sequence.
The pressurized air generated in the fan case 6 connected to the engine 5 is ejected from a desired location via the bellows pipe 2. However, in order to change the direction in which the pressurized air is ejected, it is usually necessary to Either the direction was changed, or the direction of the engine blower itself was changed. However, when changing the direction using the bellows tube 2, if the number of bellows-shaped "folds" ²¹ is too small, changing the direction becomes difficult or impossible.
The direction can be changed by increasing the number of "folds" 2 ¹ , but on the other hand, it becomes difficult to handle, and when the bellows pipe 2 is suddenly bent, the cross section becomes oval or rectangular. On the one hand, the engine blower becomes distorted to the extent that ventilation is impossible, and the flow of pressurized air is significantly obstructed. On the other hand, in the case of a portable engine blower, changing the direction of the engine blower itself causes unnecessary mental and physical fatigue to the operator. In addition to inviting them early, it is difficult to handle them.
There were problems such as a sense of complication.

[Means for solving problems]

この考案は前述のような問題点に着目して提案
されたもので、エンジンに駆動されるフアンを内
設するフアンケースの吸入口もしくは吐出口に接
続する管状体を適宜位置へ変位可能とする可搬式
エンジンブロアーにおいて、前記フアンケース
と、該フアンケースに形成される吸入口と直交す
る側縁に外方へ突出する断面が球形状の膨出部と
を一体に形成する一方、一端を断面が円形状の筒
部を形成した中空状部材の他端を球形部に形成
し、該球形部を前記膨出部内へ回動自在に嵌合
し、前記中空状部材の回動で前記筒部の開口を適
宜位置に設定・保持可能とした可搬式エンジンブ
ロアーの吐出口を提供しようとするものである。 This idea was proposed focusing on the above-mentioned problems, and it is possible to move the tubular body connected to the intake or discharge port of the fan case, which houses the fan driven by the engine, to an appropriate position. In the portable engine blower, the fan case and a bulge having a spherical cross section and protruding outward on a side edge perpendicular to the suction port formed in the fan case are integrally formed, while one end is formed with a spherical cross section. The other end of the hollow member having a circular cylindrical portion formed therein is formed into a spherical portion, the spherical portion is rotatably fitted into the bulged portion, and the rotation of the hollow member causes the cylindrical portion to open. The present invention aims to provide a discharge port for a portable engine blower that allows the opening to be set and maintained at an appropriate position.

〔Example〕

以下第１図ないし第４図でこの考案の一実施例
を説明するに、燃料タンクを兼用せる把手１１下
方に一対の対向せる可撓性に富む合成樹脂製の筐
体１２，１３をフランジ結合で一体的にフアンケ
ースＣを形成し、該フアンケースＣの一側（第３
図において右側）に吸入口１４を、またこの吐出
口１４と略直交状態下に開口部１５を夫々設け、
開口部１５の先端に、前記筐体１２，１３の上方
で夫々断面が半円形の接合片ａ，ｂを対向・接合
して第１図にみるように、断面が球形状の膨出部
Ｖを形成し、この膨出部Ｖの内周縁に可撓性に富
む合成樹脂製の中空状部材１６の球形部Ｓを回動
自在に嵌合し、必要に応じ中空状部材１６の断面
が円形状の筒部ｈに、第１図にみるような管状体
１７を装着可能としてある。しかして前記膨出部
Ｖと、この膨出部Ｖに嵌合する球形部Ｓと、これ
に一体形成される筒部ｈとからなる中空状部材１
６とで形成される空間を吐出口Ｋと称し、中空状
部材１６を第１図においてたとえば実線位置から
鎖線位置に変位させ、当該位置で後述のエンジン
Ｅの駆動でフアンケースＣ内に発生せる加圧風が
開口部１５を経て吐出口Ｋを流動するとき、球形
部Ｓは加圧風により外側に向け押圧され、膨出部
Ｖ内周縁に密着されて膨出部Ｖと中空状部材１６
とは一体的に結合された状態下におかれ、その結
果、吐出口Ｋは一定位置に保持可能としてある。
前記吸入口１４と反対側（第３図において左側）
にフアンケースＣに取付けられたエンジンＥの駆
動でフアンケースＣ内のフアン（図示しない）を
回動させ、加圧風を発生可能としてある。図中、
１８は摺動式のスロツトルレバー、１９は台盤、
２０は燃料注入栓、２１はマフラーカバー、２２
はエアクリーナー、Ｒはリコイルスターター、ｄ
は球形部Ｓの外径、ｉは膨出部Ｖの内径である。 An embodiment of this invention will be described below with reference to FIGS. 1 to 4. A pair of highly flexible synthetic resin casings 12 and 13 are connected by a flange to the bottom of a handle 11 which also serves as a fuel tank. The fan case C is integrally formed with one side (third side) of the fan case C.
An inlet 14 is provided on the right side in the figure, and an opening 15 is provided approximately perpendicular to the outlet 14.
At the tip of the opening 15, above the casings 12 and 13, joining pieces a and b, each having a semicircular cross section, are opposed and joined to form a bulge V having a spherical cross section, as shown in FIG. A spherical part S of a highly flexible hollow member 16 made of synthetic resin is rotatably fitted to the inner peripheral edge of this bulging part V, and the cross section of the hollow member 16 is made circular as necessary. A tubular body 17 as shown in FIG. 1 can be attached to the shaped cylindrical portion h. The hollow member 1 includes the bulging portion V, a spherical portion S that fits into the bulging portion V, and a cylindrical portion h integrally formed therewith.
6 is called a discharge port K, and the hollow member 16 is displaced, for example, from the solid line position to the chain line position in FIG. When the pressurized air flows through the discharge port K via the opening 15, the spherical portion S is pushed outward by the pressurized air and is brought into close contact with the inner peripheral edge of the bulge V, thereby causing the bulge V and the hollow member 16
As a result, the discharge port K can be held at a constant position.
Opposite side to the suction port 14 (left side in Figure 3)
A fan (not shown) in the fan case C is driven by an engine E attached to the fan case C to generate pressurized air. In the figure,
18 is a sliding throttle lever, 19 is a base plate,
20 is the fuel injection plug, 21 is the muffler cover, 22
is air cleaner, R is recoil starter, d
is the outer diameter of the spherical portion S, and i is the inner diameter of the bulged portion V.

３−５作用・効果この考案は前述のような構成であるから、エン
ジンＥの駆動でフアンを回動させ、吸入口１４か
らフアンケースＣ内に吸入された空気を圧縮して
加圧風を生成し、この加圧風を開口部１５を経て
中空状部材１６の筒部ｈから、もしくは管状体１
７を介して大気に向け放出させ、地表面上の砂れ
き、塵埃を飛散・除去するか、または湿気を帯び
た物体を乾燥させる等が可能である。しかして第
１図の実線位置に設定された中空状部材１６もし
くは管状体１７の一部を把持し、たとえば鎖線位
置に中空状部材１６を設定するとき、吐出口Ｋの
大気側への開口方向が変位し、加圧風は前記鎖線
位置に沿い大気に向け放出され、しかしてこの
際、加圧風が吐出口Ｋを通過するとき、球形部Ｓ
の内周縁が外側に押圧され、外周縁が膨出部Ｖの
内周縁に密着されるため、膨出部Ｖと中空部材１
６とは一体的に結合された状態下におかれる一
方、加圧風の流動で、設定された当初の位置に保
持され、よつて加圧風は常時その吐出方向が一定
である。3-5 Function/Effect Since this device has the above-mentioned configuration, the fan is rotated by the engine E, and the air sucked into the fan case C from the intake port 14 is compressed to produce pressurized air. This pressurized air is passed through the opening 15 from the cylindrical portion h of the hollow member 16 or from the tubular body 1.
7 to the atmosphere, it is possible to scatter and remove gravel and dust on the ground surface, or to dry humid objects. Therefore, when a part of the hollow member 16 or the tubular body 17 set at the solid line position in FIG. is displaced and the pressurized air is discharged toward the atmosphere along the chain line position, and at this time, when the pressurized air passes through the discharge port K, the spherical part S
The inner peripheral edge of the hollow member 1 is pressed outward, and the outer peripheral edge is brought into close contact with the inner peripheral edge of the bulge V, so that the bulge V and the hollow member 1
6, while being held at the initial set position by the flow of pressurized air, so that the direction of discharge of the pressurized air is always constant.

以上のことから、 (i) フアンケースＣの吐出口Ｋを形成する膨出部
Ｖの内周縁に、中空状部材の球形部Ｓを適宜位
置へ回動できるため、吐出口Ｋに接続する噴頭
等のような管状体を変位可能とする継手を省略
でき、吐出口Ｋを容易に所望方向に設定可能で
あると共に、吐出口Ｋを流動する加圧風の性能
低下を軽減し得る。 From the above, (i) Since the spherical part S of the hollow member can be rotated to an appropriate position on the inner peripheral edge of the bulging part V forming the discharge port K of the fan case C, the jet head connected to the discharge port K can be rotated to an appropriate position. It is possible to omit a joint that allows the tubular body to be displaced, such as the above, and the discharge port K can be easily set in a desired direction, and deterioration in the performance of the pressurized air flowing through the discharge port K can be reduced.

(ii) 弾性に富む材料で中空状部材１６を形成でき
るため、フアンケースＣ内を流動する加圧風で
中空状部材１６の球形部Ｓが膨出部Ｖ内周縁へ
押圧・密着され、膨出部Ｖと球形部Ｓとが一体
的に結合された状態におかれるので、加圧風の
漏洩や膨出部Ｖと球形部Ｓとの離脱を防止でき
ると共に、吐出口を設定当初の位置に常時、保
持できる。(ii) Since the hollow member 16 can be formed of a highly elastic material, the spherical part S of the hollow member 16 is pressed and adhered to the inner circumferential edge of the bulging part V by the pressurized air flowing inside the fan case C, causing the expansion. Since the bulging part V and the spherical part S are integrally connected, leakage of pressurized air and separation of the bulging part V and the spherical part S can be prevented, and the discharge port can be kept in its original position. can be maintained at all times.

(iii) 性能の異なる送風機に対応して中空状部材１
６の筒部ｈを適宜形状に形成できるので、たと
えば筒部ｈの先端をテーパー状とすることで中
空状部材１６を噴頭に形成可能で重量の軽減や
寸法の縮少も可能となり、可搬式エンジンブロ
アーとしての取扱も容易で、しかも中空状部材
１６の所望方向への回動で収納箱等への収納も
簡単にできる。(iii) Hollow member 1 corresponding to blowers with different performance
Since the cylindrical part h of 6 can be formed into an appropriate shape, for example, by tapering the tip of the cylindrical part h, the hollow member 16 can be formed into a jet head, which makes it possible to reduce the weight and size. It is easy to handle as an engine blower, and by rotating the hollow member 16 in a desired direction, it can be easily stored in a storage box or the like.

[Brief explanation of the drawing]

第１図は本案品の一部切欠いた要部断面図、第
２図は第１図の−線矢視図、第３図は第１図
の−線矢視図、第４図は中空状部材の斜視
図、第５図は従来の可搬式エンジンブロアーの正
面図である。Ｃ……フアンケース、Ｅ……エンジン、Ｋ……
吐出口、Ｖ……膨出部、ｈ……筒部、Ｓ……球形
部、１４……吸入口、１５……開口部、１６……
中空状部材。 Figure 1 is a partially cutaway sectional view of the main parts of the proposed product, Figure 2 is a view taken along the - line in Figure 1, Figure 3 is a view taken along the - line in Figure 1, and Figure 4 is a hollow view. FIG. 5, a perspective view of the members, is a front view of a conventional portable engine blower. C...Fan case, E...Engine, K...
Discharge port, V...Bulging part, h...Cylinder part, S...Spherical part, 14...Suction port, 15...Opening part, 16...
Hollow member.

Claims

[Scope of utility model registration request]

In a portable engine blower, a tubular body connected to an inlet or an outlet of a fan case in which a fan driven by an engine is disposed can be moved to an appropriate position. A bulging portion V having a spherical cross section and protruding outward is integrally formed on the side edge perpendicular to the suction port 14, while a cylindrical portion h having a circular cross section is formed at one end.
The other end of the hollow member 16 is formed into a spherical part S, and the spherical part S is rotatably fitted into the bulged part V, and the rotation of the hollow member 16 causes the cylindrical part h
Portable engine blower discharge port that allows the opening to be set and held in an appropriate position.