JP4231370B2

JP4231370B2 - snowblower

Info

Publication number: JP4231370B2
Application number: JP2003297978A
Authority: JP
Inventors: 信男山崎; 慎一桂川; 賢治鎌田; 信之廣瀬
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2003-08-21
Filing date: 2003-08-21
Publication date: 2009-02-25
Anticipated expiration: 2023-08-21
Also published as: JP2005068735A

Description

本発明は除雪機に係り、特に、ファンで外気を導入し、導入した空気の一部をエアクリーナを介してエンジンへ供給する除雪機に関する。 The present invention relates to a snowplow, and more particularly, to a snowplow that introduces outside air with a fan and supplies a part of the introduced air to an engine via an air cleaner.

除雪機として、雪をオーガで掻き集め、掻き集めた雪をブロアで蹴り上げ、蹴り上げた雪をシュータで投雪するものが知られている。このタイプの除雪機のなかには、アッパーカバーとロアカバーとを組み合わせることで、エンジンやエアクリーナなどを覆ったものがある。 As a snow remover, one that scrapes snow with an auger, kicks the scraped snow with a blower, and throws the kicked snow with a shooter is known. Some snowplows of this type cover engines and air cleaners by combining an upper cover and a lower cover.

具体的には、車体上部を覆うアッパーカバーと車体下部を覆うロアカバーとを組み合わせることで、カバー体を構成し、このカバー体で車体ハウジングの内に空間を形成し、形成した空間にエンジンやエアクリーナなどを配置する（例えば、特許文献１参照。）。
特開２００２−２７５８４８公報 Specifically, a cover body is formed by combining an upper cover that covers the upper part of the vehicle body and a lower cover that covers the lower part of the vehicle body, and this cover body forms a space in the vehicle body housing, and an engine or air cleaner is formed in the formed space. Etc. are arranged (for example, refer to Patent Document 1).
JP 2002-275848 A

この除雪機は、エンジンやエアクリーナをカバー体で覆っているため、エアクリーナに空気を導く外気取入口をカバー体に備える。
外気取入口からカバー体内に空気を取り入れ、取り入れた空気をエアクリーナまで導き、エアクリーナの吸込口から空気を吸い込み、エアクリーナで浄化した空気を気化器を介してエンジンの燃焼室に導く。 Since this snow remover covers the engine and the air cleaner with the cover body, the cover body is provided with an outside air inlet that guides air to the air cleaner.
Air is taken into the cover body from the outside air intake, the introduced air is led to the air cleaner, air is sucked from the air cleaner suction port, and the air purified by the air cleaner is led to the combustion chamber of the engine through the carburetor.

ここで、外気取入口からカバー体内に空気を取り入れる際に、空気とともに雪粉がカバー体内に侵入する虞がある。この場合、カバー体内に侵入した雪粉が、エアクリーナの吸込口からエアクリーナ内に入り込む。この雪粉が、エアクリーナを経て気化器内に侵入すると、気化器内で雪粉が氷になって付着する虞がある。 Here, when air is taken into the cover body from the outside air inlet, there is a possibility that snow powder may enter the cover body together with the air. In this case, the snow powder that has entered the cover body enters the air cleaner from the air cleaner inlet. If the snow dust enters the vaporizer through the air cleaner, there is a risk that the snow dust becomes ice and adheres in the vaporizer.

本発明は、エアクリーナ内に雪粉が侵入することを防ぐことができる除雪機を提供することを課題とする。 An object of the present invention is to provide a snowplow that can prevent snow powder from entering the air cleaner.

請求項１に係る発明は、機体にエンジンを搭載し、このエンジンのクランクシャフト端に設けたファンで外気を導入し、導入した空気の一部をエアクリーナを介して前記エンジンへ供給するとともに残りの空気でエンジンを冷却し、前記エンジンを駆動源として除雪をおこなう除雪機において、前記エンジン及びエアクリーナをカバー体で覆うとともに、このカバー体に開けた吸気口から前記ファンまで第１吸気通路を延ばし、前記ファンからエアクリーナまで第２吸気通路を延ばし、この第２吸気通路に雪粉等異物の通過を抑える迷路部を介在させた除雪機であって、前記迷路部は、前記エアクリーナへの導入口に臨ませて第１遮蔽板を配置するとともに、前記ファン側の端部を導入口側に斜めに折り曲げて折曲部とし、この折曲部に所定間隔をおいて第２遮蔽板を配置し、この第２遮蔽板と折曲部とで、冷却風の進行方向と異なる向きの導通路を形成し、この導通路を前記導入口に連通させたことを特徴とする。 According to the first aspect of the present invention, an engine is mounted on the fuselage, outside air is introduced by a fan provided at an end of the crankshaft of the engine, a part of the introduced air is supplied to the engine via an air cleaner, and the remaining air is supplied. In a snow remover that cools the engine with air and removes snow using the engine as a drive source, the engine and the air cleaner are covered with a cover body, and the first intake passage is extended from the intake port opened to the cover body to the fan. A snow remover that extends a second air intake passage from the fan to the air cleaner and intervenes a maze portion that suppresses the passage of foreign matters such as snow dust in the second air intake passage, the maze portion being an inlet to the air cleaner The first shielding plate is disposed so that the end on the fan side is obliquely bent to the inlet side to form a bent portion, and a predetermined portion is provided in the bent portion. The second shielding plate is arranged at a interval, in this second shield plate and the bent portion, the conductive path different from the traveling direction of the cooling air orientation form and communicates this conductive path to said inlet port It is characterized by that.

カバー体に開けた吸気口からファンまで第１吸気通路を延ばし、ファンから空気クリーナまで第２吸気通路を延ばし、第２吸気通路に雪粉などの異物の通過を抑える迷路部を介在させた。
このように、第２吸気通路の迷路部で雪粉の通過を抑えることで、エアクリーナに雪粉が入り込むことを防ぎ、気化器内に雪粉が侵入することを防止する。
さらに、第２吸気通路に迷路部を介在させることで、エンジンを高回転領域で使用する際に、エアクリーナ内に過度の空気を供給することを防止する。 The first intake passage was extended from the intake port opened in the cover body to the fan, the second intake passage was extended from the fan to the air cleaner, and a maze portion for suppressing the passage of foreign matters such as snow dust was interposed in the second intake passage.
Thus, by suppressing the passage of the snow powder in the maze portion of the second intake passage, the snow powder is prevented from entering the air cleaner and the snow powder is prevented from entering the vaporizer.
Further, by interposing the labyrinth portion in the second intake passage, it is possible to prevent excessive air from being supplied into the air cleaner when the engine is used in a high speed region.

また、請求項１は、第１遮蔽板の折曲部と第２遮蔽板とで導通路を形成し、この導通路を、冷却風の進行方向と異なる方向に向けるとともに、エアクリーナの導入口に連通させて迷路部を形成した。よって、第１遮蔽板の折曲部に空気を当てることで、この折曲部に雪粉を効率よく付着させ、空気に含まれている雪粉を迷路部で好適に取り除くことができる。 Further, according to the first aspect of the present invention, a conduction path is formed by the bent portion of the first shielding plate and the second shielding plate, and the conduction path is directed in a direction different from the traveling direction of the cooling air, and at the inlet of the air cleaner. A maze portion was formed by communication. Therefore, by applying air to the bent portion of the first shielding plate, the snow dust can be efficiently attached to the bent portion, and the snow dust contained in the air can be suitably removed at the maze portion.

請求項１に係る発明では、気化器内に雪粉が侵入することを防いで、雪粉が氷となって気化器内に付着することを防止できるという利点がある。
さらに、エアクリーナ内に過度の空気を供給することを防ぐことができるという利点がある。 The invention according to claim 1 is advantageous in that it is possible to prevent the snow powder from entering the vaporizer and prevent the snow powder from becoming ice and adhering to the vaporizer.
Furthermore, there is an advantage that excessive air can be prevented from being supplied into the air cleaner.

また、請求項１に係る発明では、導通路を、冷却風の進行方向と異なる方向に向けることで、空気に含まれている雪粉を好適に取り除き、エアクリーナ内にクリーンな空気のみを導入することができるという利点がある。 Further, in the invention according to claim 1, the conductive path, by directing in a direction different from the traveling direction of the cooling air, the Yukiko contained in air suitably removed, introducing only clean air into the air cleaner There is an advantage that you can.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係る除雪機を示す側面図である。
除雪機１０は、機体としての伝動ケース１１の下部左右側にそれぞれ走行用の電動モータ（図示せず）を取り付け、左右の電動モータに走行装置１３を連結し、伝動ケース１１の上部にエンジン１４を取り付け、エンジン１４で駆動する除雪装置１５を伝動ケース１１の前部に取り付け、除雪装置１５の後部およびエンジン１４をカバー体１８で覆い、伝動ケース１１の上部から後上方へ向けて左右の操作ハンドル２１，２２を延ばし、これら左右の操作ハンドル２１，２２間に操作盤２３を取り付け、作業者が左右の操作ハンドル２１，２２のグリップ２４，２５を握った状態で操作盤２３の後から連れ歩く、自力走行式の歩行型作業機である。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view showing a snowplow according to the present invention.
In the snowplow 10, electric motors (not shown) for traveling are attached to the lower left and right sides of a transmission case 11 as a machine body, a traveling device 13 is connected to the left and right electric motors, and an engine 14 is connected to the upper part of the transmission case 11. The snow removal device 15 driven by the engine 14 is attached to the front portion of the transmission case 11, the rear portion of the snow removal device 15 and the engine 14 are covered with the cover body 18, and the left and right operations are performed from the top of the transmission case 11 toward the rear upper direction. The handles 21 and 22 are extended, the operation panel 23 is attached between the left and right operation handles 21 and 22, and the operator holds the grips 24 and 25 of the left and right operation handles 21 and 22 from behind the operation panel 23. It is a self-propelled walking type work machine that walks.

走行装置１３は、左側の電動モータ（図示せず）の外側に左側走行部２６を備え、右側の電動モータ（図示せず）の外側に右側走行部２６を備える。なお、左右の走行部２６，２６は同じ構成部材なので同一符合を付して、左側走行部２６の説明を省略する。
右側走行部２６は、右側の電動モータに連結する右側の駆動輪２７を備え、この駆動輪２７の後方に右側の遊転輪２８を回転自在に備え、右側の駆動輪２７および遊転輪２８に右側のクローラベルト２９を巻き掛けたものである。
また、除雪装置１５は、オーガ部１６、ブロア部１７およびシュータ１９などで構成したものである。 The traveling device 13 includes a left traveling unit 26 outside the left electric motor (not shown) and a right traveling unit 26 outside the right electric motor (not shown). Since the left and right traveling units 26 and 26 are the same constituent members, the same reference numerals are given and the description of the left traveling unit 26 is omitted.
The right traveling unit 26 includes a right drive wheel 27 connected to the right electric motor, a right idler wheel 28 is rotatably provided behind the drive wheel 27, and the right drive wheel 27 and the idler wheel 28 are rotated. A crawler belt 29 on the right side is wound around the belt.
The snow removal device 15 includes an auger portion 16, a blower portion 17, a shooter 19, and the like.

この除雪機１０によれば、左右の電動モータを駆動して、左右の駆動モータで左右の駆動輪２７，２７を駆動することにより、左右のクローラベルト２９，２９を回転する。左右のクローラベルト３３を回転することで除雪機１０が走行する。
この状態で、エンジン１４で除雪装置１５、すなわちオーガ部１６およびブロア部１７を駆動して除雪作業をおこなう。 According to the snowplow 10, the left and right crawler belts 29 and 29 are rotated by driving the left and right electric motors and driving the left and right drive wheels 27 and 27 with the left and right drive motors. The snow removal machine 10 travels by rotating the left and right crawler belts 33.
In this state, the snow removal device 15, that is, the auger portion 16 and the blower portion 17 is driven by the engine 14 to perform snow removal work.

カバー体１８は、上カバー部３１と下カバー部３２とからなり、下カバー部３２でエンジン１４の底面を覆い、上カバー部３１でエンジン１４の上方を覆うことで、エンジン１４を全体に覆うように構成したものである。 The cover body 18 includes an upper cover portion 31 and a lower cover portion 32. The lower cover portion 32 covers the bottom surface of the engine 14, and the upper cover portion 31 covers the upper portion of the engine 14 to cover the engine 14 as a whole. It is comprised as follows.

図２は本発明に係る除雪機の要部を示す拡大図である。
伝動ケース１１の上部にエンジン１４を搭載し、エンジン１４の上部にエアダクト（シュラウド）３５を設け、伝動ケース１１の前部にブロア部１７およびオーガ部１６を設ける。
ブロア部１７の上部１７ａにバッテリ３７を設け、バッテリ３７の上方でエンジン１４の前に照明部３８を設ける。 FIG. 2 is an enlarged view showing a main part of the snowplow according to the present invention.
The engine 14 is mounted on the upper part of the transmission case 11, an air duct (shroud) 35 is provided on the upper part of the engine 14, and the blower part 17 and the auger part 16 are provided on the front part of the transmission case 11.
A battery 37 is provided on the upper portion 17 a of the blower unit 17, and an illumination unit 38 is provided above the battery 37 and in front of the engine 14.

カバー体１８の下カバー部３２を伝動ケース１１の上部に設けることで、下カバー部３２をエンジン１４の下方に配置し、下カバー部３２でエンジン１４の底面を覆う。
カバー体１８の上カバー部３１を下カバー部３２に取り付けることで、共通の上カバー部３１でエンジン１４、エアダクト３５、バッテリ３７および照明部３８を一括して覆う。 By providing the lower cover portion 32 of the cover body 18 on the upper part of the transmission case 11, the lower cover portion 32 is disposed below the engine 14, and the lower cover portion 32 covers the bottom surface of the engine 14.
By attaching the upper cover portion 31 of the cover body 18 to the lower cover portion 32, the engine 14, the air duct 35, the battery 37 and the illumination portion 38 are collectively covered with the common upper cover portion 31.

上カバー部３２は、上カバー本体４１を有し、上カバー本体４１の前部４１ａからサブカバー部４２を隆起させ、サブカバー部４２に照明部３８を収納し、サブカバー部４２の前面に透光部４３および庇部４４を備える。
さらに、上カバー本体４１の後部４１ｂにリヤカバー部４５を備え、リヤカバー部４５の後部４５ａに取手４６を備える。
なお、透光部４３については図３で詳しく説明し、リヤカバー部４５については図４で詳しく説明する。 The upper cover part 32 has an upper cover body 41, the sub cover part 42 is raised from the front part 41 a of the upper cover body 41, the illumination part 38 is accommodated in the sub cover part 42, and the front surface of the sub cover part 42 is provided. The translucent part 43 and the collar part 44 are provided.
Further, a rear cover portion 45 is provided at the rear portion 41 b of the upper cover main body 41, and a handle 46 is provided at the rear portion 45 a of the rear cover portion 45.
The translucent portion 43 will be described in detail with reference to FIG. 3, and the rear cover portion 45 will be described in detail with reference to FIG.

エンジン１４は、クランクシャフト４８を縦置きにした形式のバーチカルエンジンであり、シリンダブロック４９を後方に向けて配置したものである。
縦置きにしたクランクシャフト４８の上端部（クランクシャフト端）４８ａにフライフォイール５１を取り付け、フライフォイール５１の上部に冷却ファン（ファン）５２を取り付ける（図６も参照）。
フライフォイール５１の外周にギヤ（図示せず）を形成し、このギヤにスタータモータのピニオン（図示せず）を噛み合わせる。 The engine 14 is a vertical engine of a type in which a crankshaft 48 is placed vertically, and a cylinder block 49 is arranged facing rearward.
A flywheel 51 is attached to the upper end (crankshaft end) 48a of the crankshaft 48 placed vertically, and a cooling fan (fan) 52 is attached to the top of the flywheel 51 (see also FIG. 6).
A gear (not shown) is formed on the outer periphery of the flywheel 51, and a starter motor pinion (not shown) is engaged with the gear.

このスタータモータのピニオンでフライフォイール５１を回転して、フライフォイール５１と一体にクランクシャフト４８および冷却ファン５２を回転する。
一方、エンジン１４が駆動してクランクシャフト４８を回転すると、クランクシャフト４８とともにフライフォイール５１が回転し、フライフォイール５１と一体に冷却ファン５２が回転する。 The flywheel 51 is rotated by the starter motor pinion, and the crankshaft 48 and the cooling fan 52 are rotated integrally with the flywheel 51.
On the other hand, when the engine 14 is driven to rotate the crankshaft 48, the flywheel 51 rotates together with the crankshaft 48, and the cooling fan 52 rotates integrally with the flywheel 51.

図３は本発明に係る除雪機の透光部を示す斜視図である。
上カバー部３１（図２も参照）の前部にはサブカバー部４２を備え、サブカバー部４２の前面４２ａに略矩形状の開口部５５を形成し、この開口部５５を照明部３８の前面３８ａに臨ませる。
開口部５５の下辺５５ａには一対のＬ形受け片５６，５６を設け、それぞれのＬ形受け片５６，５６の下面に受入孔５７，５７を形成する。
一方、開口部５５の上辺５５ｂには一対の突片５８，５８を設け、それぞれの突片５８，５８に取付孔５９，５９を形成する。 FIG. 3 is a perspective view showing a light transmitting portion of the snowplow according to the present invention.
The front portion of the upper cover portion 31 (see also FIG. 2) includes a sub-cover portion 42, and a substantially rectangular opening 55 is formed on the front surface 42 a of the sub-cover portion 42. It faces the front surface 38a.
A pair of L-shaped receiving pieces 56, 56 are provided on the lower side 55 a of the opening 55, and receiving holes 57, 57 are formed on the lower surfaces of the L-shaped receiving pieces 56, 56.
On the other hand, a pair of projecting pieces 58, 58 are provided on the upper side 55b of the opening 55, and attachment holes 59, 59 are formed in the projecting pieces 58, 58, respectively.

サブカバー部４２は、開口部５５に嵌め込み可能な透光部４３を備える。透光部４３は、略矩形状に形成した部材であって、照明部３８から投光した光を通す（透過する）ものである。
透光部４３は、下辺４３ａから一対の係止片６１，６１を下向きに突出し、上辺４３ｂに一対のボス６２，６２を後方に向けて突出し、それぞれのボス６２，６２にねじ孔６３，６３を形成し、一対のボス６２，６２の内側の上辺４３ｂに一対の通孔６１，６１を形成する。 The sub cover part 42 includes a light transmitting part 43 that can be fitted into the opening 55. The light transmitting part 43 is a member formed in a substantially rectangular shape, and allows the light projected from the illumination part 38 to pass (transmit).
The translucent portion 43 projects a pair of locking pieces 61, 61 downward from the lower side 43a, projects a pair of bosses 62, 62 rearward from the upper side 43b, and screw holes 63, 63 to the respective bosses 62, 62. And a pair of through holes 61, 61 are formed in the upper side 43b inside the pair of bosses 62, 62.

この透光部４３の上辺４３ｂから庇部４４を前方に向けて延ばすことで、庇部４４を透光部４３と同一部材で透光部４３に一体形成した構成とする。
さらに、庇部４４を前方に向けて延ばし、この庇部４４を一対の通孔６１，６１の上方に配置することで、一対の通孔６１，６１を庇部４４で覆う（図５も参照）。 By extending the flange portion 44 forward from the upper side 43 b of the light transmitting portion 43, the flange portion 44 is formed integrally with the light transmitting portion 43 by the same member as the light transmitting portion 43.
Further, the flange portion 44 is extended forward, and the flange portion 44 is disposed above the pair of through holes 61 and 61, thereby covering the pair of through holes 61 and 61 with the flange portion 44 (see also FIG. 5). ).

透光部４３を開口部５５に嵌め込む際には、透光部４３の係止片６１，６１をＬ形受け片５６，５６の受入孔５７，５７に差し込み、透光部４３のボス６２，６２を突片５８，５８に当接する。
突片５８，５８取付孔５９，５９にボルト６５，６５を差し込み、差し込んだボルト６５，６５をボス６２，６２のねじ孔６３，６３にねじ込むことにより、開口部５５に透光部４３を嵌め込んだ状態に取り付ける（図５も参照）。
開口部５５に透光部４３を取り付けた状態で、透光部４３のレンズ部６６を照明部３８の前部３８ａに臨ませる。 When the translucent part 43 is fitted into the opening 55, the locking pieces 61, 61 of the translucent part 43 are inserted into the receiving holes 57, 57 of the L-shaped receiving pieces 56, 56, and the boss 62 of the translucent part 43 is inserted. , 62 is brought into contact with the projecting pieces 58, 58.
The bolts 65, 65 are inserted into the projecting pieces 58, 58 mounting holes 59, 59, and the inserted bolts 65, 65 are screwed into the screw holes 63, 63 of the bosses 62, 62, thereby fitting the translucent part 43 into the opening 55. (See also FIG. 5).
With the light transmitting portion 43 attached to the opening 55, the lens portion 66 of the light transmitting portion 43 faces the front portion 38 a of the illumination portion 38.

図４は本発明に係る除雪機のリヤカバー部を示す斜視図である。
リヤカバー部４５は、後部４５ａにビス孔７１・・・を３個形成し、後部４５ａの上部４５ｂに略矩形状の凹部７２を形成するとともに、凹部７２の上部から後方に張出部７３を形成し、凹部７２および張出部７３で取手４６を形成し、前部４５ｃの上部４５ｄから差込部７４を前方に向けて突出したものである。
差込部７４は、断面略コ字形に形成した部材で、上カバー本体４１の受入口７５に差し込み可能な部材である。 FIG. 4 is a perspective view showing a rear cover portion of the snowplow according to the present invention.
The rear cover part 45 has three screw holes 71... Formed in the rear part 45 a, a substantially rectangular concave part 72 is formed in the upper part 45 b of the rear part 45 a, and an overhang part 73 is formed rearward from the upper part of the concave part 72. In addition, the handle 46 is formed by the concave portion 72 and the overhang portion 73, and the insertion portion 74 projects forward from the upper portion 45d of the front portion 45c.
The insertion portion 74 is a member formed in a substantially U-shaped cross section, and is a member that can be inserted into the receiving port 75 of the upper cover main body 41.

上カバー本体４１の後部４１ｂにリヤカバー部４５を取り付ける際には、リヤカバー部４５の差込部７４を上カバー本体４１の受入口７５に差し込み（図６も参照）、ビス孔７１・・・にビス７６・・・を差し込み、差し込んだビス７６・・・を上カバー本体４１のねじ孔７７・・・にねじ込み、上カバー本体４１の後部４１ｂにリヤカバー部４５を取り付ける。
なお、ねじ孔７７・・・は、上カバー本体４１の後部４１ｂに形成されている。 When attaching the rear cover portion 45 to the rear portion 41b of the upper cover main body 41, the insertion portion 74 of the rear cover portion 45 is inserted into the receiving port 75 of the upper cover main body 41 (see also FIG. 6) and inserted into the screw holes 71. The screws 76 are inserted into the screw holes 77 of the upper cover body 41, and the rear cover portion 45 is attached to the rear portion 41b of the upper cover body 41.
The screw holes 77... Are formed in the rear portion 41 b of the upper cover main body 41.

上カバー本体４１の後部４１ｂにリヤカバー部４５を取り付けることで、上カバー本体４１の後部４１ｂとリヤカバー部４５とで、上カバー本体４１（上カバー部３１）内に外気（空気）を吸い込むための吸込口７８（図６参照）を形成する。
この吸込口７８から吸い込んだ空気を上カバー本体４１内に導入し、上カバー本体４１内に導入した空気を、エンジン１４の冷却や、エアクリーナ８１（図７参照）に導く空気として使用する。 By attaching the rear cover portion 45 to the rear portion 41b of the upper cover main body 41, the rear portion 41b and the rear cover portion 45 of the upper cover main body 41 can suck outside air (air) into the upper cover main body 41 (upper cover portion 31). A suction port 78 (see FIG. 6) is formed.
The air sucked from the suction port 78 is introduced into the upper cover main body 41, and the air introduced into the upper cover main body 41 is used as air for cooling the engine 14 or leading to the air cleaner 81 (see FIG. 7).

図５は本発明に係る除雪機の要部を示す断面図である。
ブロア部１７の上部１７ａにバッテリ３７を搭載し、バッテリ３７の上方に照明部３８を備え、照明部３８の前面３８ａに透光部４３のレンズ部６６を臨ませる。
照明部３８の前面３８ａから光８２を投光すると、投光した光８２は透光部４３のレンズ部６６を透過して除雪機１０の前方を照射する。 FIG. 5 is a cross-sectional view showing the main part of the snowplow according to the present invention.
A battery 37 is mounted on the upper portion 17 a of the blower unit 17, an illumination unit 38 is provided above the battery 37, and the lens unit 66 of the translucent unit 43 faces the front surface 38 a of the illumination unit 38.
When the light 82 is projected from the front surface 38 a of the illumination unit 38, the projected light 82 passes through the lens unit 66 of the light transmitting unit 43 and irradiates the front of the snow removal machine 10.

透光部４３に設けた庇部４４は、作業者（図示せず）が左右の操作ハンドル２１，２２のグリップ２４，２５（図１参照）を握った状態で操作盤２３の後から連れ歩く際に、作業者の目８３で視認可能な位置まで延ばしたものである。庇部４４の庇幅をＷとする。
さらに、この庇部４４を一対の通孔６４，６４（図３も参照）の上方に配置し、通孔６４，６４を庇部４４で覆うことで、通孔６４，６４に雨水が侵入することを防止する。 The collar portion 44 provided in the translucent portion 43 is carried from the rear of the operation panel 23 in a state where an operator (not shown) holds the grips 24 and 25 (see FIG. 1) of the left and right operation handles 21 and 22. In this case, it is extended to a position where it can be visually recognized by the eyes 83 of the worker. Let the width of the flange 44 be W.
Furthermore, this collar part 44 is arrange | positioned above a pair of through-holes 64 and 64 (refer also FIG. 3), and rainwater penetrate | invades into the through-holes 64 and 64 by covering the through-holes 64 and 64 with the collar part 44. To prevent that.

ここで、図２に示すように、エンジン１４（図２参照）、バッテリ３７および照明部３８をカバー体１８の上カバー部３１で覆っているので、エンジン１４や照明部３８から発生した熱（熱気）を逃がす工夫が必要になる。
そこで、庇部４４の下に一対の通孔６４，６４を形成して、エンジン１４や照明部３８から発生した熱を一対の通孔６４，６４から逃がすことにした。
加えて、庇部４４の下方に一対の通孔６４，６４を形成することで、バッテリ３７から発生したガス（水素）を一対の通孔６４，６４から逃がすことも可能になる。 Here, as shown in FIG. 2, the engine 14 (see FIG. 2), the battery 37, and the illumination part 38 are covered with the upper cover part 31 of the cover body 18, so that heat generated from the engine 14 and the illumination part 38 ( It is necessary to devise a way to escape the heat.
Therefore, a pair of through holes 64 and 64 are formed under the flange 44 so that heat generated from the engine 14 and the illumination unit 38 is released from the pair of through holes 64 and 64.
In addition, by forming the pair of through holes 64 and 64 below the flange portion 44, the gas (hydrogen) generated from the battery 37 can be released from the pair of through holes 64 and 64.

この除雪機１０によれば、エンジン１４（図２参照）の前に照明部３８を配置し、これらのエンジン１４及び照明部３８を共通の上カバー部３１（カバー体１８）で一括して覆い、上カバー部３１に照明部３１が投光する光を通す透光部４３を設けた。照明部３８を上カバー部３１で覆うことで、風雨から保護することができる。
さらに、照明部３８を、エンジン１４を覆うエンジン用の上カバー部３１で覆うことで、照明部３８を覆うカバー部材を新たに準備する必要がないので、部品点数の増加を抑えることができる。 According to the snowplow 10, the illumination unit 38 is disposed in front of the engine 14 (see FIG. 2), and the engine 14 and the illumination unit 38 are collectively covered with the common upper cover 31 (the cover body 18). The upper cover part 31 is provided with a translucent part 43 through which light emitted by the illumination part 31 is transmitted. By covering the illumination part 38 with the upper cover part 31, it can protect from a wind and rain.
Furthermore, since the illumination unit 38 is covered with the engine upper cover unit 31 that covers the engine 14, it is not necessary to newly prepare a cover member that covers the illumination unit 38, and thus an increase in the number of components can be suppressed.

図６は本発明に係る除雪機のエアダクトを示す断面図である。
伝動ケース１１（図２参照）の上部に、クランクシャフト４８を縦置きにしてエンジン１４を設け、このエンジン１４の上部にエアダクト３５を配置することで、エアダクト３５で冷却ファン５２を覆う。
エアダクト３５は、ダクト本体８５と、このダクト本体８５の上部に取り付けたプレート８６とからなる。ダクト本体８５は、略矩形状の箱形に形成した部材である（図８も参照）。 FIG. 6 is a sectional view showing an air duct of the snowplow according to the present invention.
The engine 14 is provided with the crankshaft 48 placed vertically on the upper part of the transmission case 11 (see FIG. 2), and the air duct 35 is disposed on the upper part of the engine 14, thereby covering the cooling fan 52 with the air duct 35.
The air duct 35 includes a duct main body 85 and a plate 86 attached to the upper portion of the duct main body 85. The duct body 85 is a member formed in a substantially rectangular box shape (see also FIG. 8).

このダクト本体８５は、略矩形状に形成した周壁８７（図８も参照）を備え、周壁８７の上端開口８７ａをプレート８６で塞ぎ、下端開口８７ｂから冷却ファン５２を収納し、上端開口８５ａと下端開口８５ｂとの間に仕切り板９１を略水平に形成し、仕切り板９１とプレート８６で形成した空間を第１吸気通路９２とし、仕切り板９１の下方の空間を第２吸気通路９３としたものである。 The duct body 85 includes a peripheral wall 87 (see also FIG. 8) formed in a substantially rectangular shape, the upper end opening 87a of the peripheral wall 87 is closed with a plate 86, the cooling fan 52 is accommodated from the lower end opening 87b, and the upper end opening 85a A partition plate 91 is formed substantially horizontally between the lower end opening 85b, a space formed by the partition plate 91 and the plate 86 is defined as a first intake passage 92, and a space below the partition plate 91 is defined as a second intake passage 93. Is.

さらに、このエアダクト３５は、第２吸気通路９３の後部（下流側）９３ａに迷路部９５を形成し、第２吸気通路９３の前部（上流側）９３ａに冷却ファン５２およびフライホイール５１を収納し、第１吸気通路９２の後部（上流側）９２ａに第１吸気通路９２に臨む開口９６を形成し、この開口９６にシール材９７を取り付け、仕切り板９１の前部に冷却ファン５２に臨む連通口９８を形成したものである。
仕切り板９１に連通口９８を形成することで、連通口９８を介して第１吸気通路９２を第２吸気通路９３に連通する。 Further, the air duct 35 forms a labyrinth portion 95 at the rear portion (downstream side) 93a of the second intake passage 93, and houses the cooling fan 52 and the flywheel 51 at the front portion (upstream side) 93a of the second intake passage 93. Then, an opening 96 facing the first intake passage 92 is formed in the rear portion (upstream side) 92 a of the first intake passage 92, a seal material 97 is attached to the opening 96, and the cooling fan 52 faces the front portion of the partition plate 91. A communication port 98 is formed.
By forming the communication port 98 in the partition plate 91, the first intake passage 92 is communicated with the second intake passage 93 via the communication port 98.

このエアダクト３５に上カバー部３１を被せることで、リヤカバー部４５の差込部７４の先端部をエアダクト３５のシール材９７に当接する。
これにより、上カバー本体４１の後部４１ｂとリヤカバー部４５とで形成した吸込口７８を、差込部７４を介して第１吸気通路９２に連通する。 By covering the air duct 35 with the upper cover portion 31, the distal end portion of the insertion portion 74 of the rear cover portion 45 is brought into contact with the sealing material 97 of the air duct 35.
As a result, the suction port 78 formed by the rear portion 41 b and the rear cover portion 45 of the upper cover main body 41 is communicated with the first intake passage 92 via the insertion portion 74.

この状態で、冷却ファン５２を回転することにより、吸込口７８から外気（空気）を矢印ａの如く吸い込み、吸込口７８に吸い込んだ空気を、差込部７４および開口９６を介して第１吸気通路９２に矢印ｂの如く導く。
第１吸気通路９２に導いた空気を、連通口９８を介して矢印ｃの如く第２吸気通路９３に導く。 In this state, by rotating the cooling fan 52, outside air (air) is sucked from the suction port 78 as indicated by an arrow a, and the air sucked into the suction port 78 is first sucked through the insertion portion 74 and the opening 96. Guide to the passage 92 as shown by arrow b.
The air guided to the first intake passage 92 is guided to the second intake passage 93 as shown by an arrow c through the communication port 98.

第２吸気通路９３に導いた空気の一部を迷路部９５を介してエアクリーナ８１（図７参照）に導き、残りの空気を矢印ｄの如く下方に導くことでエンジン１４を冷却する。
そして、エアクリーナ８１に導いた空気を、気化器１０１（図７参照）を介してエンジン１４へ供給する。 A part of the air guided to the second intake passage 93 is guided to the air cleaner 81 (see FIG. 7) through the maze portion 95, and the remaining air is guided downward as indicated by an arrow d to cool the engine 14.
Then, the air guided to the air cleaner 81 is supplied to the engine 14 via the vaporizer 101 (see FIG. 7).

すなわち、除雪機１０は、伝動ケース１１にエンジン１４を搭載し、このエンジン１４のクランクシャフト４８の上端部（クランクシャフト端）に設けた冷却ファン（ファン）で空気（外気）を導入し、導入した空気の一部をエアクリーナ８１（図７参照）を介してエンジン１４へ供給するとともに残りの空気でエンジン１４を冷却し、エンジン１４を駆動源として除雪をおこなうものである。 That is, the snowplow 10 has the engine 14 mounted on the transmission case 11 and introduces air (outside air) with a cooling fan (fan) provided at the upper end (crankshaft end) of the crankshaft 48 of the engine 14. A part of the air is supplied to the engine 14 via the air cleaner 81 (see FIG. 7), and the engine 14 is cooled with the remaining air, and snow is removed using the engine 14 as a drive source.

さらに、エンジン１４及びエアクリーナ８１を上カバー部３１（カバー体１８）で覆うとともに、この上カバー部３１に開けた吸気口７８から冷却ファン（ファン）５２まで第１吸気通路９２を延ばし、冷却ファン５２からエアクリーナ８１まで第２吸気通路９３を延ばし、この第２吸気通路９３に雪粉等異物の通過を抑える迷路部９５を介在させたものである。 Further, the engine 14 and the air cleaner 81 are covered with the upper cover portion 31 (cover body 18), and the first intake passage 92 is extended from the intake port 78 opened in the upper cover portion 31 to the cooling fan (fan) 52, thereby cooling the cooling fan. The second intake passage 93 extends from 52 to the air cleaner 81, and a maze portion 95 that suppresses the passage of foreign matters such as snow dust is interposed in the second intake passage 93.

図７は本発明に係る除雪機のエアダクトとエアクリーナとの関係を示す分解斜視図である。
エンジン１４の右側後部１４ａに一対のボルト１０２，１０２を介して気化器１０１を取り付け、気化器１０１に一対のボルト１０２，１０２を介してエアクリーナ８１を取り付け、ボルト１０２，１０２にナット１０３，１０３を締め付ける。 FIG. 7 is an exploded perspective view showing the relationship between the air duct and the air cleaner of the snowplow according to the present invention.
A carburetor 101 is attached to the right rear portion 14a of the engine 14 via a pair of bolts 102, 102, an air cleaner 81 is attached to the carburetor 101 via a pair of bolts 102, 102, and nuts 103, 103 are attached to the bolts 102, 102. tighten.

これにより、エアダクト３５を構成する周壁８７の右側後部位８７ｃにエアクリーナ８１を当接して、第２吸気通路９３の導入口１０５（図６も参照）をエアクリーナ８１の給気口１０６に連通する。
第２吸気通路９３の導入口１０５をエアクリーナ８１の給気口１０６に連通することで、給気口１０６からエアクリーナ８１に導いた空気をフィルタ（図示せず）を通して導入口１０７から矢印の如く気化器１０１の給気口１０８に導く。 Thereby, the air cleaner 81 is brought into contact with the right rear portion 87c of the peripheral wall 87 constituting the air duct 35, and the introduction port 105 (see also FIG. 6) of the second intake passage 93 is communicated with the air supply port 106 of the air cleaner 81.
By communicating the inlet 105 of the second intake passage 93 with the air inlet 106 of the air cleaner 81, the air guided from the air inlet 106 to the air cleaner 81 is vaporized from the inlet 107 as indicated by the arrow through a filter (not shown). Guided to the air inlet 108 of the vessel 101.

図８は本発明に係る除雪機のエアダクトを示す分解斜視図である。
エアダクト３５を、略矩形状に形成した箱形のダクト本体８７と、このダクト本体８７の上部にボルト１０９・・・で取り付けたプレート８６とから構成する。
ダクト本体８７の周壁８７を略矩形状に形成し、仕切り板９１に連通口９８を形成し、この連通口９８に冷却ファン５２を臨ませる。 FIG. 8 is an exploded perspective view showing an air duct of the snowplow according to the present invention.
The air duct 35 includes a box-shaped duct body 87 formed in a substantially rectangular shape, and a plate 86 attached to the upper portion of the duct body 87 with bolts 109.
A peripheral wall 87 of the duct body 87 is formed in a substantially rectangular shape, a communication port 98 is formed in the partition plate 91, and the cooling fan 52 is made to face the communication port 98.

ダクト本体８７の上部にプレート８６を取り付けることで、周壁８７、仕切り板９１およびプレート８６で第１吸気通路９２（図６も参照）を形成し、第１吸気通路９２の下流側９２ｂに冷却ファン５２を配置する。
なお、仕切り板９１の上面には、空気の流れを円滑にするためのガイド１１１・・・が形成されている。 By attaching the plate 86 to the upper portion of the duct body 87, the peripheral wall 87, the partition plate 91 and the plate 86 form a first intake passage 92 (see also FIG. 6), and a cooling fan is provided on the downstream side 92b of the first intake passage 92. 52 is arranged.
In addition, guides 111... For smoothing the air flow are formed on the upper surface of the partition plate 91.

図９は本発明に係る除雪機のエアダクトを上下に破断した状態を示す斜視図である。
エアダクト３５をエンジン１４の上部に設けることで、第２吸気通路９３の前部（上流側）９３ｂに冷却ファン５２を収納し、エアダクト３５を構成する周壁８７の下端開口８７ｂをエンジン１４の上部で覆う。
これにより、第１吸気通路９２の下方に、周壁８７、仕切り板９１およびエンジン１４の上部で第２吸気通路９３（図６も参照）を形成し、第２吸気通路９３の上流側９３ｂに冷却ファン５２を配置する。 FIG. 9 is a perspective view showing a state where the air duct of the snowplow according to the present invention is broken up and down.
By providing the air duct 35 in the upper part of the engine 14, the cooling fan 52 is accommodated in the front part (upstream side) 93 b of the second intake passage 93, and the lower end opening 87 b of the peripheral wall 87 constituting the air duct 35 is formed in the upper part of the engine 14. cover.
As a result, a second intake passage 93 (see also FIG. 6) is formed below the first intake passage 92 at the upper portion of the peripheral wall 87, the partition plate 91, and the engine 14, and cooled to the upstream side 93b of the second intake passage 93. A fan 52 is arranged.

第２吸気通路９３の下流側９３ａには、ガイド部１１３を形成するとともに、導入口１０５に臨ませて迷路部９５を形成する。
ガイド部１１３は、冷却ファン５２で送られた空気（冷却風）を、迷路部９５に好適に案内するものである。
迷路部９５は、ガイド部１１３で案内された空気（冷却風）を当てることで、空気に含まれている雪粉等異物を取り除くものである。
なお、迷路部９５およびガイド部１１３は、上辺が仕切り板９１の裏面に一体に形成されている（迷路部９５は図６参照）。 A guide portion 113 is formed on the downstream side 93 a of the second intake passage 93, and a maze portion 95 is formed facing the inlet 105.
The guide part 113 suitably guides the air (cooling air) sent by the cooling fan 52 to the maze part 95.
The maze unit 95 removes foreign matters such as snow dust contained in the air by applying air (cooling air) guided by the guide unit 113.
The maze portion 95 and the guide portion 113 are integrally formed on the back surface of the partition plate 91 (see FIG. 6 for the maze portion 95).

図１０は本発明に係る除雪機のエアダクトを示す断面図である。
第２吸気通路９３のガイド部１１３は、周壁８７の後端部位８７ｄに対して所定間隔をおいて後ガイド片１１６を平行に形成し、この後ガイド片１１６の左端部１１６ａから、周壁８７の左側後部位８７ｅに対して左ガイド片１１７を略平行に上流側に向けて延ばし、左ガイド片１１７の上流側端部１１８を外側に折り曲げて左側後部位８７ｅに当接する。
一方、左ガイド片１１７の下流側端部１１７ａ近傍から後ガイド片１１６に向けて斜めに傾斜ガイド片１１９を延ばしたものである。 FIG. 10 is a sectional view showing an air duct of the snowplow according to the present invention.
The guide portion 113 of the second intake passage 93 is formed with a rear guide piece 116 parallel to the rear end portion 87d of the peripheral wall 87 at a predetermined interval, and from the left end portion 116a of the rear guide piece 116, The left guide piece 117 is extended toward the upstream side substantially parallel to the left rear portion 87e, and the upstream end portion 118 of the left guide piece 117 is bent outward to come into contact with the left rear portion 87e.
On the other hand, the inclined guide piece 119 extends obliquely from the vicinity of the downstream end 117a of the left guide piece 117 toward the rear guide piece 116.

後ガイド片１１６および右側後部位８７ｃに迷路部９５を備える。この迷路部９５は、エアクリーナ８１の給気口１０６（図７参照）、具体的には第２吸気通路９３の導入口１０５に臨ませて第１遮蔽板１２１を配置するとともに、冷却ファン５２側の端部を導入口１０５側に斜めに折り曲げて折曲部１２２とし、この折曲部１２２に所定間隔をおいて第２遮蔽板１２３を配置し、この第２遮蔽板１２３と折曲部１２２とで、冷却風の進行方向と異なる向きの導通路１２４を形成し、この導通路１２４を導入口１０５に連通させたものである。
この迷路部９５の近傍に前記ガイド部１１３を設けることで、迷路部９５に向けて冷却風を好適に案内することが可能になる。 A maze portion 95 is provided in the rear guide piece 116 and the right rear portion 87c. The maze portion 95 is arranged with the first shielding plate 121 facing the air inlet 106 (see FIG. 7) of the air cleaner 81, specifically, the inlet 105 of the second intake passage 93, and the cooling fan 52 side. The bent portion 122 is bent obliquely toward the introduction port 105 side to form a bent portion 122, and a second shielding plate 123 is disposed at a predetermined interval in the bent portion 122, and the second shielding plate 123 and the bent portion 122 are arranged. Thus, a conduction path 124 having a direction different from the traveling direction of the cooling air is formed, and the conduction path 124 is communicated with the introduction port 105.
By providing the guide portion 113 in the vicinity of the maze portion 95, it becomes possible to suitably guide the cooling air toward the maze portion 95.

迷路部９５の第１遮蔽板１２１は、後ガイド片１１６の右端部１１６ｂから、右側後部位８７ｃに対して所定間隔をおいて、右側後部位８７ｃと略平行に導入口１０５の後辺１０５ａまで延ばした部材である。
折曲部１２２は、第１遮蔽板１２１の上流側端部１２１ａから、導入口１０５の前辺１０５ｂに向けて外向きに傾斜させた部材である。折曲部１２２と導入口１０５の前辺１０５ｂとの間に空気が通過する流路１２６を形成する。 The first shielding plate 121 of the maze portion 95 extends from the right end portion 116b of the rear guide piece 116 to the rear side 105a of the inlet 105 at a predetermined distance from the right rear portion 87c and substantially parallel to the right rear portion 87c. It is an extended member.
The bent portion 122 is a member that is inclined outward from the upstream end portion 121 a of the first shielding plate 121 toward the front side 105 b of the introduction port 105. A flow path 126 through which air passes is formed between the bent portion 122 and the front side 105 b of the introduction port 105.

第２遮蔽板１２３は、右側後端部８７ｃから折曲部１２２に向けて、折曲部１２２と平行に延ばすとともに、先端部位１２３ａを折曲部１２２に対して所定間隔離して配置する。
第２遮蔽板１２３の先端部位１２３ａと折曲部１２２とで導通路１２４を形成し、第１、第２遮蔽板１２１，１２３および右側後部位８７ｃで予備室１２７を形成する。 The second shielding plate 123 extends in parallel with the bent portion 122 from the right rear end portion 87 c toward the bent portion 122, and the tip portion 123 a is arranged with a predetermined distance from the bent portion 122.
A conduction path 124 is formed by the tip portion 123a of the second shielding plate 123 and the bent portion 122, and a spare chamber 127 is formed by the first and second shielding plates 121 and 123 and the right rear portion 87c.

エアダクト３５によれば、冷却ファン５２で第２吸気通路９３に矢印ｅの空気を導き、第２吸気通路９３に導いた空気をガイド部１１３で矢印ｆの如く導いて折曲部１２２に当て、折曲部１２２に当てた空気を、導通路１２４を介して矢印ｇの予備室１２７に導き、予備室１２７に導いた空気を矢印ｈの如く導入口１０５に導き、導入口１０５から矢印ｉの如くエアクリーナ８１（図７参照）に導く。 According to the air duct 35, the cooling fan 52 guides the air indicated by the arrow e to the second intake passage 93, the air guided to the second intake passage 93 is guided by the guide portion 113 as indicated by the arrow f, and is applied to the bent portion 122. The air applied to the bent portion 122 is guided to the spare chamber 127 indicated by the arrow g through the conduction path 124, and the air guided to the spare chamber 127 is guided to the inlet 105 as indicated by the arrow h. Then, the air is guided to the air cleaner 81 (see FIG. 7).

このように、迷路部９５の近傍にガイド部１１３を設けることで、空気を迷路部９５の折曲部１２２に当て、迷路部９５で空気内に含んでいる雪粉等異物を好適に取り除く。
また、迷路部９５の下流側に予備室１２７を設けた。この予備室１２７内に空気を導くことで、空気の流速や風速を良好に調整し、さらにエンジン１４（図９参照）の熱を利用して空気を良好に加熱する。これにより、エアクリーナ８１に好適な空気を供給することが可能になる。 Thus, by providing the guide portion 113 in the vicinity of the maze portion 95, air is applied to the bent portion 122 of the maze portion 95, and foreign matters such as snow dust contained in the air are suitably removed by the maze portion 95.
In addition, a preliminary chamber 127 is provided on the downstream side of the maze portion 95. By guiding the air into the spare chamber 127, the air flow rate and the wind speed are adjusted favorably, and further, the air is favorably heated using the heat of the engine 14 (see FIG. 9). Thereby, it is possible to supply suitable air to the air cleaner 81.

さらに、第２吸気通路９３に迷路部９５を介在させることで、エンジン１４（図２参照）を高回転領域で使用する際に、エアクリーナ８１内に過度の空気を供給することを防ぐ。 Further, by interposing the labyrinth portion 95 in the second intake passage 93, it is possible to prevent excessive air from being supplied into the air cleaner 81 when the engine 14 (see FIG. 2) is used in a high rotation region.

図１１（ａ）は本発明に係る除雪機の透光部および庇部の作用について説明した図、図１１（ｂ）は本発明に係る除雪機の上カバー部を着脱する例を説明した図である。
（ａ）において、照明部３８の前面３８ａから光８２を投光する。投光した光８２は、透光部４３のレンズ部６６を透過して除雪機１０の前方を照射する。
庇部４４を透光部４３と同一部材で透光部４３に一体形成することで、照明部３８から投光した光の一部が、透光部４３を透光する際に、庇部４４まで到達して庇部４４から放散する。 FIG. 11A is a diagram for explaining the operation of the translucent part and the eaves part of the snowplow according to the present invention, and FIG. 11B is a diagram for explaining an example in which the upper cover part of the snowplow according to the present invention is attached and detached. It is.
In (a), light 82 is projected from the front surface 38 a of the illumination unit 38. The projected light 82 passes through the lens portion 66 of the translucent portion 43 and irradiates the front of the snowplow 10.
By forming the collar portion 44 integrally with the light transmitting portion 43 with the same member as the light transmitting portion 43, when a part of the light projected from the illumination portion 38 transmits the light transmitting portion 43, the collar portion 44. To reach and dissipate from the buttocks 44.

庇部４４から光りを放散することで、庇部４４を明るくして作業者（図示せず）の目８３で見えやすくすることができる。
さらに、庇部４４を作業者の目８３で視認可能な位置まで延ばした。作業者は、操作位置から庇部４４を見るだけで、照明部３８のオン・オフ状態を簡単に見分けることができる。 By dissipating light from the collar part 44, the collar part 44 can be brightened and can be easily seen by the eyes 83 of an operator (not shown).
Furthermore, the collar portion 44 was extended to a position where it could be visually recognized by the operator's eyes 83. The operator can easily distinguish the on / off state of the illumination unit 38 simply by looking at the collar unit 44 from the operation position.

ところで、エンジン１４（図２参照）及び照明部３８を共通の上カバー部３１で覆うと、照明部３８から発生した熱（熱気）が上カバー部３１内に溜まる虞がある。上カバー部３１内に熱が溜まると、その熱で、エンジン１４に悪影響が及ぶことや、上カバー部３１内の水分を蒸発させて透光部４３が曇ることが考えられる。 By the way, if the engine 14 (see FIG. 2) and the illumination unit 38 are covered with the common upper cover unit 31, heat (hot air) generated from the illumination unit 38 may accumulate in the upper cover unit 31. If heat accumulates in the upper cover part 31, it is conceivable that the heat will adversely affect the engine 14, or the water in the upper cover part 31 is evaporated and the light transmitting part 43 becomes cloudy.

そこで、庇部４４の下に一対の通孔６４，６４（図３も参照）を形成して、エンジン１４や照明部３８から発生した熱を一対の通孔６４，６４から逃がすことにした。
加えて、庇部４４の下方に一対の通孔６４，６４を形成することで、バッテリ３７から発生したガス（水素）を一対の通孔６４，６４から逃がすことも可能になる。 Therefore, a pair of through holes 64 and 64 (see also FIG. 3) is formed under the flange 44 so that heat generated from the engine 14 and the illumination unit 38 is released from the pair of through holes 64 and 64.
In addition, by forming the pair of through holes 64 and 64 below the flange portion 44, the gas (hydrogen) generated from the battery 37 can be released from the pair of through holes 64 and 64.

まら、庇部４４を一対の通孔６４，６４（図３も参照）の上方に配置した。通孔６４，６４を庇部４４で覆い、通孔６４，６４に雨水が侵入することを防止する。これにより、照明部３８やバッテリ３７などの電装部品を雨水から保護することができる。 Furthermore, the collar part 44 was arrange | positioned above a pair of through-holes 64 and 64 (refer also FIG. 3). The through holes 64 and 64 are covered with the flange portion 44 to prevent rainwater from entering the through holes 64 and 64. Thereby, electrical components, such as the illumination part 38 and the battery 37, can be protected from rain water.

（ｂ）に示すように、透光部４３から庇部４４を延ばし、かつリヤカバー部４５の後部４５ａに取手４６を設けた。これにより、作業者は両手１３１，１３１で庇部４４と取手４６を掴んで、上カバー部３１を簡単に着脱することができる。
加えて、庇部４４を上カバー部３１を着脱する際の取手として利用することで、上カバー部３１を着脱するための取手を新たに設ける必要がない。 As shown in (b), the flange portion 44 is extended from the translucent portion 43, and a handle 46 is provided on the rear portion 45 a of the rear cover portion 45. As a result, the operator can easily attach and detach the upper cover portion 31 by holding the collar portion 44 and the handle 46 with both hands 131 and 131.
In addition, it is not necessary to newly provide a handle for attaching and detaching the upper cover portion 31 by using the collar portion 44 as a handle when the upper cover portion 31 is attached and detached.

図１２（ａ），（ｂ）は本発明に係る除雪機のエアダクトに設けた第１吸気通路内の空気の流れについて説明した図である。
（ａ）において、冷却ファン５２を回転することにより、吸込口７８から外気（空気）を矢印ａの如く吸い込む。吸込口７８に吸い込んだ空気を、差込部７４および開口９６を介して第１吸気通路９２に矢印ｂの如く導く。
第１吸気通路９２に導いた空気を、連通口９８を介して矢印ｃの如く第２吸気通路９３に導く。
第２吸気通路９３に導いた空気の一部を迷路部９５側に導き、一方、残りの空気を矢印ｄの如く下方に導くことで、残りの空気でエンジン１４を冷却する。 12 (a) and 12 (b) are diagrams illustrating the flow of air in the first intake passage provided in the air duct of the snowplow according to the present invention.
In (a), the cooling fan 52 is rotated to suck outside air (air) from the suction port 78 as shown by an arrow a. The air sucked into the suction port 78 is guided to the first intake passage 92 through the insertion portion 74 and the opening 96 as indicated by an arrow b.
The air guided to the first intake passage 92 is guided to the second intake passage 93 as shown by an arrow c through the communication port 98.
A part of the air guided to the second intake passage 93 is guided to the maze portion 95 side, while the remaining air is guided downward as indicated by an arrow d, thereby cooling the engine 14 with the remaining air.

（ｂ）において、第１吸気通路９２を形成する仕切り板９１の表面にガイド１１１・・・を形成する。ガイド１１１・・・を形成することで、第１吸気通路９２内に空気を矢印ｂの如く円滑に導く、さらに、ガイド１１１・・・を形成することで、第１吸気通路９２内の空気を冷却ファン５２に向けて矢印ｃの如く円滑に導く。 In (b), guides 111 are formed on the surface of the partition plate 91 that forms the first intake passage 92. By forming the guides 111..., The air is smoothly guided into the first intake passage 92 as indicated by the arrow b. Furthermore, by forming the guides 111. It smoothly guides toward the cooling fan 52 as shown by the arrow c.

図１３（ａ），（ｂ）は本発明に係る除雪機のエアダクトに設けた第２吸気通路内の空気の流れについて説明した図である。
（ａ）において、第２吸気通路９３に矢印ｃの如く導いた空気の一部を、第２吸気通路９３の下流側に矢印ｅの如く導く。
第２吸気通路９３の下流側に導いた空気を、ガイド部１１３で迷路部９５に向けて矢印ｆの如く導く。 FIGS. 13A and 13B are diagrams illustrating the flow of air in the second intake passage provided in the air duct of the snowplow according to the present invention.
In (a), a part of the air guided to the second intake passage 93 as indicated by the arrow c is guided to the downstream side of the second intake passage 93 as indicated by the arrow e.
The air guided to the downstream side of the second intake passage 93 is guided by the guide portion 113 toward the maze portion 95 as indicated by an arrow f.

（ｂ）において、ガイド部１１３で矢印ｆの如く導いた空気を折曲部１２２に当て、折曲部１２２に当てた空気を、導通路１２４を介して矢印ｇの予備室１２７に導く。予備室１２７に導いた空気を矢印ｈの如く導入口１０５に導き、導入口１０５から矢印ｉの如くエアクリーナ８１（図７参照）に導く。 In (b), the air guided as indicated by the arrow f by the guide portion 113 is applied to the bent portion 122, and the air applied to the bent portion 122 is guided to the spare chamber 127 indicated by the arrow g through the conduction path 124. The air guided to the preliminary chamber 127 is guided to the inlet 105 as indicated by the arrow h, and is guided from the inlet 105 to the air cleaner 81 (see FIG. 7) as indicated by the arrow i.

このように、迷路部９５の近傍にガイド部１１３を設けることで、空気を迷路部９５の折曲部１２２に当て、迷路部９５で空気内に含んでいる雪粉等異物を好適に取り除く。
ここで、迷路部９５を、第１遮蔽板１２１の折曲部１２２と第２遮蔽板１２３とで導通路１２４を形成し、この導通路１２４を、冷却風の進行方向と異なる方向に向けるとともに、エアクリーナ８１の給気口１０６に連通させて形成した。 Thus, by providing the guide portion 113 in the vicinity of the maze portion 95, air is applied to the bent portion 122 of the maze portion 95, and foreign matters such as snow dust contained in the air are suitably removed by the maze portion 95.
Here, the labyrinth portion 95 is formed by the bent portion 122 of the first shielding plate 121 and the second shielding plate 123 to form a conduction path 124, and the conduction path 124 is directed in a direction different from the traveling direction of the cooling air. The air cleaner 81 is formed so as to communicate with the air supply port 106.

よって、第１遮蔽板１２１の折曲部１２２に空気を当てることで、この折曲部１２２に雪粉を効率よく付着させることができる。
これにより、空気に含まれている雪粉を迷路部９５で好適に取り除いて、エアクリーナ８１内にクリーンな空気のみを導入する。 Therefore, by applying air to the bent portion 122 of the first shielding plate 121, snow powder can be efficiently attached to the bent portion 122.
Thereby, the snow dust contained in the air is suitably removed by the maze portion 95, and only clean air is introduced into the air cleaner 81.

さらに、第２吸気通路９３に迷路部９５を介在させることで、エンジン１４（図２参照）を高回転領域で使用する際に、エアクリーナ８１内に過度の空気を供給することを防ぐことができる。 Further, by interposing the labyrinth portion 95 in the second intake passage 93, it is possible to prevent excessive air from being supplied into the air cleaner 81 when the engine 14 (see FIG. 2) is used in a high rotation region. .

また、迷路部９５の下流側に予備室１２７を設けた。この予備室１２７内に空気を導くことで、空気の流速や風速を良好に調整し、さらにエンジン１４（図９参照）の熱を利用して空気を良好に加熱する。これにより、エアクリーナ８１に好適な空気を供給することが可能になる。 In addition, a preliminary chamber 127 is provided on the downstream side of the maze portion 95. By guiding the air into the spare chamber 127, the air flow rate and the wind speed are adjusted favorably, and further, the air is favorably heated using the heat of the engine 14 (see FIG. 9). Thereby, it is possible to supply suitable air to the air cleaner 81.

なお、前記実施の形態では、迷路部９５として、第２遮蔽板１２１、折曲部１２２、第２遮蔽板１２３を設け、折曲部１２２および第２遮蔽板１２３で、冷却風の進行方向と異なる向きの導通路１２４を形成する例について説明したが、迷路部９５の形状はこれに限らない、要は、空気に含まれている雪粉などを取り除くことができるものであればよい。
また、前記実施の形態では、迷路部９５で雪粉を取り除く例について説明したが、これに限らないで、空気に含まれている雪粉以外の異物を取り除くことも可能である。 In the embodiment, the second shielding plate 121, the bent portion 122, and the second shielding plate 123 are provided as the maze portion 95, and the cooling air travel direction is determined by the bent portion 122 and the second shielding plate 123. Although the example which forms the conduction path 124 of a different direction was demonstrated, the shape of the maze part 95 is not restricted to this, What is necessary is just what can remove the snow dust etc. which are contained in the air.
Moreover, although the example which removes snow dust in the maze part 95 was demonstrated in the said embodiment, it is not restricted to this, It is also possible to remove foreign materials other than the snow dust contained in the air.

本発明は、ファンで外気を導入し、導入した空気の一部をエアクリーナを介してエンジンへ供給する除雪機に好適である。 The present invention is suitable for a snow remover that introduces outside air with a fan and supplies part of the introduced air to an engine via an air cleaner.

本発明に係る除雪機を示す側面図である。It is a side view which shows the snow remover which concerns on this invention. 本発明に係る除雪機の要部を示す拡大図である。It is an enlarged view which shows the principal part of the snow remover which concerns on this invention. 本発明に係る除雪機の透光部を示す斜視図である。It is a perspective view which shows the translucent part of the snow remover which concerns on this invention. 本発明に係る除雪機のリヤカバー部を示す斜視図である。It is a perspective view which shows the rear cover part of the snow remover which concerns on this invention. 本発明に係る除雪機の要部を示す断面図である。It is sectional drawing which shows the principal part of the snow remover which concerns on this invention. 本発明に係る除雪機のエアダクトを示す断面図である。It is sectional drawing which shows the air duct of the snow remover which concerns on this invention. 本発明に係る除雪機のエアダクトとエアクリーナとの関係を示す分解斜視図である。It is a disassembled perspective view which shows the relationship between the air duct and air cleaner of the snow remover which concerns on this invention. 本発明に係る除雪機のエアダクトを示す分解斜視図である。It is a disassembled perspective view which shows the air duct of the snow remover which concerns on this invention. 本発明に係る除雪機のエアダクトを上下に破断した状態を示す斜視図である。It is a perspective view which shows the state which fractured | ruptured the air duct of the snow remover which concerns on this invention up and down. 本発明に係る除雪機のエアダクトを示す断面図である。It is sectional drawing which shows the air duct of the snow remover which concerns on this invention. （ａ）は本発明に係る除雪機の透光部および庇部の作用について説明した図、（ｂ）は本発明に係る除雪機の上カバー部を着脱する例を説明した図である。(A) is the figure explaining the effect | action of the translucent part and the collar part of the snow remover which concerns on this invention, (b) is the figure explaining the example which attaches / detaches the upper cover part of the snow remover concerning this invention. 本発明に係る除雪機のエアダクトに設けた第１吸気通路内の空気の流れについて説明した図である。It is the figure explaining the flow of the air in the 1st intake passage provided in the air duct of the snow remover which concerns on this invention. 本発明に係る除雪機のエアダクトに設けた第２吸気通路内の空気の流れについて説明した図である。It is a figure explaining the flow of the air in the 2nd intake passage provided in the air duct of the snow remover which concerns on this invention.

Explanation of symbols

１０…除雪機、１１…伝動ケース（機体）、１４…エンジン、１８…カバー体、３１…上カバー部、３２…下カバー部、４８…クランクシャフト、４８ａ…上端部（クランクシャフト端）、５２…冷却ファン（ファン）、７８…吸込口、８１…エアクリーナ、９２…第１吸気通路、９３…第２吸気通路、９５…迷路部、１０５…第２吸気通路の導入口、１２１…第１遮蔽板、１２２…折曲部、１２３…第２吸気通路、１２４…導通路。 DESCRIPTION OF SYMBOLS 10 ... Snow remover, 11 ... Transmission case (machine body), 14 ... Engine, 18 ... Cover body, 31 ... Upper cover part, 32 ... Lower cover part, 48 ... Crankshaft, 48a ... Upper end part (crankshaft end), 52 DESCRIPTION OF SYMBOLS ... Cooling fan (fan), 78 ... Suction port, 81 ... Air cleaner, 92 ... 1st intake passage, 93 ... 2nd intake passage, 95 ... Maze part, 105 ... Inlet port of 2nd intake passage, 121 ... 1st shielding Plate 122, bent portion, 123 second intake passage, 124 conduction path.

Claims

The engine is mounted on the fuselage, outside air is introduced by a fan provided at the end of the crankshaft of the engine, a part of the introduced air is supplied to the engine via an air cleaner, and the engine is cooled by the remaining air. In a snowplow that removes snow using the engine as a drive source,
The engine and the air cleaner are covered with a cover body, a first intake passage is extended from the intake port opened in the cover body to the fan, a second intake passage is extended from the fan to the air cleaner, and snow dust is added to the second intake passage. Such as a snowblower with a labyrinth that suppresses the passage of foreign objects ,
The maze portion faces the introduction port to the air cleaner and arranges the first shielding plate, and the fan side end portion is bent obliquely to the introduction port side to form a bent portion,
A second shielding plate is arranged at a predetermined interval in the bent portion,
A snow remover characterized in that a conduction path having a direction different from the traveling direction of the cooling air is formed by the second shielding plate and the bent portion, and the conduction path is communicated with the introduction port .