JPH0218111Y2

JPH0218111Y2 -

Info

Publication number: JPH0218111Y2
Application number: JP13774184U
Authority: JP
Priority date: 1984-09-10
Filing date: 1984-09-10
Publication date: 1990-05-22
Also published as: JPS6154021U

Description

【考案の詳細な説明】［産業上の利用分野］本案は、ロータリ除雪装置における雪はね返し
を防止できるブロワの構造に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure of a blower that can prevent snow from flying back in a rotary snow removal device.

［従来の技術とその問題点］従来、この種のものにあつては、下記のような
ものになつている。[Prior art and its problems] Conventionally, this type of device has been as follows.

ロータリ除雪装置において、雪を投雪する在来
のブロワは、オーガより進入してきた雪を、ブロ
ワ翼５の先端幅５Ａが拡いため除雪装置の前方及
び側方にはね返してしまい、除雪後の路面上に雪
を残す。 In a rotary snow removal device, the conventional blower that throws snow bounces the snow that enters from the auger to the front and side of the snow removal device because the width 5A of the tip of the blower blade 5 is wide, and the snow that enters from the auger is bounced back to the front and side of the snow removal device. Leave snow on top.

従つて、モータグレーダ等による後処理を必要
とし、除雪作業効率の低下を招いている。 Therefore, post-processing using a motor grader or the like is required, resulting in a decrease in snow removal efficiency.

［課題を解決するための手段］本願では、おおよそ下記の構成のものによつて
上述した問題を解決しようとするものである。[Means for Solving the Problems] The present application attempts to solve the above-mentioned problems by using a device having approximately the following configuration.

中心にはボス３が前後方向をもつて固着されて
いるブロワ背板２の正面側に、当該ボス３を中心
として正面放射状に張設された適数枚のブロワ翼
４は、ブロワ背板に平行な直線Ｅ−E′線でブロワ
の回転方向側にすくい角４Ｄをもつて折曲げた三
角状の前方板部４Ａと、ブロワ背板に垂直な直線
Ｆ−F′線でブロワの回転方向に対して一定の後退
角４Ｃをもつて折曲げた長方形の後方板部４Ｂと
から構成されているロータリ除雪装置におけるブ
ロワである。 A suitable number of blower blades 4, which are stretched radially from the front with the boss 3 at the center, are attached to the front side of the blower back plate 2, to which a boss 3 is fixed in the front-rear direction. A triangular front plate part 4A bent with a rake angle 4D toward the direction of blower rotation along a parallel straight line E-E', and a straight line F-F' perpendicular to the blower back plate in the direction of rotation of the blower. This is a blower in a rotary snow removal device, which is composed of a rectangular rear plate portion 4B bent with a fixed receding angle 4C relative to the snow removal device.

この場合、ボス３を中心として正面放射状に張
設された適数枚のブロワ翼４を、各ブロワ翼４を
構成する前方板部４Ａにおける先端部４Ａ１の前
面沿いに添着させたリング状部材４Ｅで連結する
こともできる。 In this case, a ring-shaped member 4E is formed by attaching an appropriate number of blower blades 4 stretched radially from the front centering on the boss 3 along the front surface of the tip portion 4A1 of the front plate portion 4A constituting each blower blade 4. You can also connect with

［作用］効果と共に説明する。[Effect] Explain along with the effects.

［考案の実施例］本案の実施例を図面を参照して説明する。[Example of idea] An embodiment of the present invention will be described with reference to the drawings.

１は本案のロータリ除雪装置におけるブロワで
ある。 1 is a blower in the rotary snow removal device of the present invention.

２はブロワ背板で、中心にはボス３が前後方向
をもつて固着されている。 Reference numeral 2 denotes a blower back plate, and a boss 3 is fixed to the center thereof in the front-rear direction.

４はこのブロワ背板２の正面側に、当該ボス３
を中心として正面放射状に張設された適数枚（図
示では５枚）のブロワ翼である。 4 is the boss 3 on the front side of the blower back plate 2.
A suitable number of blower blades (five in the illustration) are stretched radially in front of the center.

このブロワ翼４は当然１枚の金属板で構成され
ているが、ブロワ背板の進行方向に平行な直線Ｅ
−E′線でブロワの回転方向側に約30度のすくい角
４Ｄをもつて折曲げた三角状の前方板部４Ａと、
さらに、ブロワ背板に垂直な直線Ｆ−F′線でブロ
ワの回転方向に対して一定の約20度の後退角４Ｃ
をもつて折曲げた長方形の後方板部４Ｂとから構
成されている。 This blower blade 4 is naturally composed of one metal plate, but a straight line E parallel to the direction of movement of the blower back plate
- A triangular front plate portion 4A bent at a rake angle 4D of about 30 degrees toward the direction of rotation of the blower along line -E′;
Furthermore, the receding angle 4C is constant at about 20 degrees with respect to the direction of rotation of the blower on the straight line F-F' perpendicular to the blower back plate.
It is composed of a rectangular rear plate portion 4B bent with .

さらに、各ブロワ翼４は、各ブロワ翼４を構成
する前方板部４Ａにおける先端部４Ａ１の前面沿
いに添着させたリング状部材４Ｅで連結されてい
る。 Further, the blower blades 4 are connected by a ring-shaped member 4E attached along the front surface of the tip portion 4A1 of the front plate portion 4A constituting each blower blade 4.

［考案の効果］本考案は、上述の通り構成されているので、次
に記載する効果を奏する。[Effects of the invention] Since the present invention is configured as described above, it produces the following effects.

イブロワ翼４の先端部４Ａ１の幅を、在来のブ
ロワ翼の先端幅５Ａの約20％と小さくすること
により、雪のはね返しを減少させることができ
る。B. Snow splashing can be reduced by reducing the width of the tip 4A1 of the blower blade 4 to about 20% of the tip width 5A of a conventional blower blade.

ロブロワ翼４のすくい角４Ｄにより、雪の飲み
込みを良好にすることができる。The rake angle 4D of the blower blade 4 makes it possible to swallow snow well.

ハブロワ翼４の後退角４Ｃにより、雪がブロワ
ケースの外周に集まり、雪のまとまりを良好に
することができる。Due to the sweepback angle 4C of the blower blades 4, snow gathers around the outer periphery of the blower case, making it possible to improve the clumps of snow.

加えて、投雪の収束性が良くなる。 In addition, the convergence of snow throwing is improved.

ニリング状部材４Ｅにより、雪のはね返しを防
止し、かつ、一旦ブロワ内に入つた雪が、はき
戻されるのを防止することができる。The ring-shaped member 4E can prevent snow from splashing back, and can also prevent snow that has once entered the blower from being thrown back.

さらに、ブロワ翼４の補強部材の役目も果た
すことができる。 Furthermore, it can also serve as a reinforcing member for the blower blades 4.

これらの効果を実際に実験にて確認したとこ
ろ、雪のはね返し量は在来のブロワの60％程度ま
で減少した。 When these effects were actually confirmed in experiments, the amount of snow thrown back was reduced to about 60% of that of conventional blowers.

また、雪の飲み込み及びまとまりが良好なた
め、投雪距離は在来ブロワと比較して30％程度延
長することができた。 In addition, because it absorbs and clumps snow well, the snow throwing distance can be extended by about 30% compared to conventional blowers.

[Brief explanation of drawings]

第１図は本願の斜視図、第２図は同上の正面
図、第３図は一部を切欠いた縦断面図、第４図は
要部拡大平面図、第５図は他の実施例の斜視図、
第６図は同上の正面図、第７図は一部を切欠いた
縦断面図、第８図は本願のもののブロワ翼の先端
部の幅を示す要部拡大図、第９図は要部拡大平面
図、第１０図は在来ブロワの正面図、第１１図は
同上の一部を切欠いた縦断面図である。１……ロータリ除雪装置におけるブロワ、２…
…ブロワ背板、４……ブロワ翼、４Ａ……前方板
部、４Ｂ……後方板部、４Ｃ……後退角、４Ｄ…
…すくい角、４Ｅ……リング状部材。 Fig. 1 is a perspective view of the present application, Fig. 2 is a front view of the same as above, Fig. 3 is a longitudinal sectional view with a part cut away, Fig. 4 is an enlarged plan view of the main part, and Fig. 5 is of another embodiment. Perspective view,
Figure 6 is a front view of the same as above, Figure 7 is a partially cutaway vertical cross-sectional view, Figure 8 is an enlarged view of the main part showing the width of the tip of the blower blade of the present application, and Figure 9 is an enlarged view of the main part. A plan view, FIG. 10 is a front view of a conventional blower, and FIG. 11 is a partially cut away longitudinal sectional view of the same. 1...Blower in a rotary snow removal device, 2...
...Blower back plate, 4...Blower blade, 4A...Front plate part, 4B...Rear plate part, 4C...Sweding angle, 4D...
...Rake angle, 4E...Ring-shaped member.

Claims

[Claims for Utility Model Registration] 1. On the front side of the blower back plate 2, to which a boss 3 is fixed in the front-rear direction, an appropriate number of sheets are stretched radially in front with the boss 3 as the center. The blower blade 4 has a triangular front plate part 4A bent at a rake angle 4D toward the direction of rotation of the blower along a straight line E-E' parallel to the blower back plate, and a straight line F perpendicular to the blower back plate. A blower for a rotary snow removal device, comprising a rectangular rear plate portion 4B bent at a constant receding angle 4C with respect to the direction of rotation of the blower along line -F'. 2. An appropriate number of blower blades 4 stretched radially in front around the boss 3 are connected by a ring-shaped member 4E attached along the front surface of the tip 4A1 of the front plate portion 4A constituting each blower blade 4. A blower in a rotary snow removal device according to claim 1, wherein