JPH07205667A - Engine cooling device for industrial vehicle - Google Patents

Engine cooling device for industrial vehicle

Info

Publication number
JPH07205667A
JPH07205667A JP259494A JP259494A JPH07205667A JP H07205667 A JPH07205667 A JP H07205667A JP 259494 A JP259494 A JP 259494A JP 259494 A JP259494 A JP 259494A JP H07205667 A JPH07205667 A JP H07205667A
Authority
JP
Japan
Prior art keywords
radiator
straightening
counterweight
cooling device
engine cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP259494A
Other languages
Japanese (ja)
Inventor
Toshimitsu Takahashi
利光 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyoda Automatic Loom Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Automatic Loom Works Ltd filed Critical Toyoda Automatic Loom Works Ltd
Priority to JP259494A priority Critical patent/JPH07205667A/en
Publication of JPH07205667A publication Critical patent/JPH07205667A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To improve the cooling efficiency of a radiator by allowing the wind passing through the radiator to smoothly flow to the cavity part of a counterweight, without generating the gulfing-up phenomenon by straightening the wind on both the side surfaces. CONSTITUTION:As for an engine cooling device for an industrial vehicle which is constituted so that the wind generated by the revolution of a cooling fan 10 is allowed to pass through a radiator 11 and is discharged behind a car body through the cavity part 2 of a counterweight 1, each straightening plate 13 is installed at the left and right of the rear surface of the radiator 11. Each of the left and right straightening plates 13 is formed to a longitudinal form which has a nearly L shape on the plane view and has an installation piece having the height nearly equal to that of the radiator 11 and the straightening piece, and the rear end part of the straightening piece is arranged in close to the longitudinal wall surface 2a in the cavity part 2 of the counterweight 1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、フォークリフト等のよ
うな車体後部にカウンタウェイトが搭載されている産業
車両のエンジン冷却装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine cooling device for an industrial vehicle, such as a forklift, which has a counterweight mounted on the rear part of the vehicle body.

【0002】[0002]

【従来の技術】一般に、車体後部にカウンタウェイトが
搭載されたフォークリフトのような産業車両のエンジン
冷却装置は、エンジンにより駆動される冷却ファンの回
転により生ずる風をラジエータを通過させてから車体後
部のカウンタウェイトに形成された空洞部を経て車体後
方へ放出することにより、エンジンの冷却を行うように
構成している。
2. Description of the Related Art Generally, an engine cooling device for an industrial vehicle such as a forklift having a counterweight mounted on a rear portion of a vehicle body is installed in a rear portion of the vehicle body after a wind generated by rotation of a cooling fan driven by the engine is passed through a radiator. The engine is cooled by discharging it to the rear of the vehicle body through a cavity formed in the counterweight.

【0003】[0003]

【発明が解決しようとする課題】ところが、上述した従
来のエンジン冷却装置においては、冷却風のラジエータ
通過後において、その圧力変化に伴いラジエータの後面
側方に風の巻き込み現象が発生し、このことがラジエー
タから抜け出る風の抵抗となってラジエータの冷却効率
を低下させる原因となっている。また、ラジエータを通
過してから側方へ流れる一部の風がエンジンルーム側ま
で回り込み、それがルーム内温度を高めることも冷却効
率を低下させる一因となっている。
However, in the above-described conventional engine cooling device, after the cooling air passes through the radiator, a wind entrainment phenomenon occurs on the side of the rear surface of the radiator due to the change in pressure, which causes Causes resistance to the wind that escapes from the radiator, which causes the cooling efficiency of the radiator to decrease. Further, a part of the air flowing laterally after passing through the radiator circulates to the engine room side, which raises the temperature inside the room, which is one of the causes of lowering the cooling efficiency.

【0004】なお、ラジエータから風が円滑に抜け出る
ようにするために、ラジエータの後面側に整流板を設け
ることも行われている。このような整流板付きラシエー
タ冷却装置としては、例えば実開昭61−32520号
公報を挙げることができるが、整流板付きエンジン冷却
装置の場合においては、整流板で囲繞された範囲内では
風の流れを整流化できたとしても、その出口においては
上記と同様な風の巻き込み現象が発生し、十分な冷却効
率を得ることができなかった。また、フォークリフトの
場合、フレームの後端部(ヘッドガートのリヤピラー後
端面)とカウンタウェイトの側方前端面との突き合わせ
部にある程度の隙間が存在しており、エンジンルーム内
の騒音がこの隙間を通して車外に放出され、これが運転
者の耳元騒音や車体側方騒音の原因となっている。
In order to allow the wind to smoothly escape from the radiator, a current plate is also provided on the rear surface side of the radiator. As such a radiator cooling device with a straightening vane, for example, Japanese Utility Model Laid-Open No. 61-32520 can be cited. However, in the case of an engine cooling device with a straightening vane, wind within a range surrounded by the straightening vanes. Even if the flow could be rectified, the same wind entrainment phenomenon as described above occurred at the outlet, and sufficient cooling efficiency could not be obtained. Also, in the case of a forklift, there is a certain amount of clearance between the rear end of the frame (rear end surface of the rear pillar of the headgart) and the side front end surface of the counterweight, and noise in the engine room passes through this clearance. It is emitted to the outside of the vehicle and causes noise around the driver's ears and side noise of the vehicle body.

【0005】そこで本発明は、上述の問題に鑑み、ラジ
エータを通過後の風を両側面において整流することによ
り、ラジエータを通過後の風が巻き込み現象を起こすこ
となくカウンタウェイトの空洞部へ円滑に流れるように
してラジエータの冷却効率を高め、併せて周囲騒音の低
減を図ることを、解決すべき技術的課題とする。
In view of the above-mentioned problems, the present invention rectifies the wind after passing through the radiator on both side surfaces thereof, so that the wind after passing through the radiator can be smoothly introduced into the cavity of the counterweight without causing any entrainment phenomenon. It is a technical issue to be solved that the cooling efficiency of the radiator is increased by allowing the air flow and the ambient noise is reduced.

【0006】[0006]

【課題を解決するための手段】上記課題を解決するため
に、本発明は次のように構成したものである。すなわ
ち、請求項1の発明は、冷却ファンの回転により発生し
た風をラジエータを通過させてからカウンタウェイトの
空洞部を経て車体後方へ放出するようにした産業車両の
エンジン冷却装置であって、前記ラジエータの後面左右
両側に、該ラジエータの高さに略等しい高さを有する整
流板を設けるとともに、該整流板を前記カウンタウェイ
トの空洞部まで延長させてその後端部を該空洞部の左右
の縦壁面に接近して配置したことを特徴とする。請求項
2の発明は、請求項1記載の産業車両のエンジン冷却装
置において、前記左右の整流板が、その上下で連結板に
より相互に結合されて一体化されたことを特徴とする。
請求項3の発明は、請求項1又は2記載の産業車両のエ
ンジン冷却装置において、前記左右の整流板が、少なく
とも前後方向に延在する突条部を備えていることを特徴
とする。請求項4の発明は、請求項1,2又は3記載の
産業車両のエンジン冷却装置において、前記左右の整流
板が、ラジエータの後面に平行な平面を有する取付片と
該取付片から後方に延在する整流片とから平面略L字形
に形成され、前記取付片を前記ラジエータ後面に突き合
わせた状態で取付ける構成としたことを特徴とする。
In order to solve the above problems, the present invention is configured as follows. That is, the invention of claim 1 is the engine cooling device for an industrial vehicle, wherein the wind generated by the rotation of the cooling fan is passed through the radiator and then discharged to the rear of the vehicle body through the hollow portion of the counterweight. Rectifier plates having a height substantially equal to the height of the radiator are provided on the left and right sides of the rear surface of the radiator, and the rectifier plates are extended to the cavity portion of the counterweight so that the rear end portions thereof extend vertically to the left and right of the cavity portion. It is characterized by being placed close to the wall. According to a second aspect of the present invention, in the engine cooling device for an industrial vehicle according to the first aspect, the left and right baffle plates are integrally connected to each other by connecting plates above and below the baffle plates.
According to a third aspect of the present invention, in the engine cooling device for an industrial vehicle according to the first or second aspect, the left and right straightening vanes include at least a ridge portion extending in the front-rear direction. According to a fourth aspect of the present invention, in the engine cooling device for an industrial vehicle according to the first, second or third aspect, the left and right rectifying plates extend rearward from the mounting piece having a flat surface parallel to the rear surface of the radiator. The present invention is characterized in that it is formed in a substantially L-shape in a plane from existing rectifying pieces, and that the mounting pieces are mounted in a state of being abutted against the rear surface of the radiator.

【0007】[0007]

【作用】上述のように構成された請求項1の発明に係る
産業車両のエンジン冷却装置においては、ラジエータを
通過後の風が、左右の整流板に沿って後方のカウンタウ
ェイトの空洞部内へ案内される。このことにより、ラジ
エータを通過した風が横方向へ流れることを抑制され、
風の巻き込み現象が回避される。すなわち、ラジエータ
通過後の風は、ラジエータの両側面においてその全高さ
の範囲で確実に整流され、その状態を維持しつつカウン
タウェイトの空洞部へと誘導される。また、このように
風の横方向への流出が抑えられることで、仮にフレーム
の後端部とカウンタウェイトの側方前端部との突き合わ
せ部に隙間が存在しても、該隙間からの騒音漏出が減少
される。
In the engine cooling device for an industrial vehicle according to the invention of claim 1 configured as described above, the wind after passing through the radiator is guided along the left and right straightening vanes into the cavity of the rear counterweight. To be done. As a result, the wind that has passed through the radiator is suppressed from flowing laterally,
Wind entrainment phenomenon is avoided. That is, the wind after passing through the radiator is surely rectified within the entire height range on both side surfaces of the radiator, and is guided to the cavity of the counterweight while maintaining that state. In addition, by suppressing the outflow of wind in the lateral direction in this way, even if there is a gap between the rear end of the frame and the side front end of the counterweight, noise will leak from the gap. Is reduced.

【0008】また、請求項2の発明においては、左右の
整流板を、相互の平行度を含めた開口(間隔)寸法管理
を製作段階で行い得るため、ラジエータに対して左右別
々に組付ける場合に比し、組付位置や組付姿勢のバラツ
キが減少する。また、請求項3の発明においては、整流
板の曲げ剛性が高められ、それ自体の振動による騒音の
発生が回避される。
According to the second aspect of the present invention, since the left and right baffle plates can be controlled in the size of the opening (spacing) including mutual parallelism at the manufacturing stage, the left and right baffle plates are separately assembled to the radiator. Compared with the above, variations in the assembly position and the assembly posture are reduced. Further, in the invention of claim 3, the bending rigidity of the straightening vane is enhanced, and the generation of noise due to its own vibration is avoided.

【0009】請求項4の発明においては、取付片と整流
片とが直角となるように整流板を製作しておけば、ラジ
エータ後面に取付片を突き当てて取付けることにより、
ラジエータ後面に対して整流片が整流効果の高い直角状
態に簡単に設定される。
According to the fourth aspect of the present invention, if the straightening plate is manufactured so that the mounting piece and the straightening piece are at a right angle, the mounting piece is abutted against the rear surface of the radiator to mount the straightening plate.
The straightening piece is easily set in a right-angled state with a high straightening effect with respect to the rear surface of the radiator.

【0010】[0010]

【実施例】以下、本発明の実施例を図面に基づいて具体
的に説明する。図1は本実施例に係る産業車両のエンジ
ン冷却装置を示す側断面図であり、図2は同じく平断面
図である。上記両図に示すように、車体後部にカウンタ
ウェイト1が搭載されたフォークリフトにおいて、車体
中央に形成されるエンジンルーム3には、前方からエン
ジン9、冷却ファン10、ラジエータ11の順序で配列
され、その上面側がエンジンフード4により覆われてい
る。そして、冷却ファン10の回転により生ずる風をラ
ジエータ11を通過させてから車体後部のカウンタウェ
イト1に形成された空洞部2を経て車体後方へ放出する
ことにより、エンジン9及びエンジンルーム3の冷却を
行っている。
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side sectional view showing an engine cooling device for an industrial vehicle according to this embodiment, and FIG. 2 is a plan sectional view of the same. As shown in the above figures, in a forklift having a counterweight 1 mounted on the rear of the vehicle body, an engine room 3, which is formed in the center of the vehicle body, has an engine 9, a cooling fan 10, and a radiator 11 arranged in this order from the front. The upper surface side is covered with the engine hood 4. Then, the wind generated by the rotation of the cooling fan 10 passes through the radiator 11 and is then discharged to the rear of the vehicle body through the cavity 2 formed in the counterweight 1 at the rear portion of the vehicle body, thereby cooling the engine 9 and the engine room 3. Is going.

【0011】なお、ラジエータ11はその左右両側面に
突設した取付板12を、車体を構成する左右のフレーム
5上に立設されたヘッドガード(図示省略)のリヤピラ
ー6の内面側に突設されたブラケット7に重ねた状態で
ボルト8にて締着することにより吊下状に支持されてい
る。
The radiator 11 has a mounting plate 12 projecting from the left and right side surfaces of the radiator 11 projecting from an inner surface of a rear pillar 6 of a head guard (not shown) provided upright on the left and right frames 5 forming the vehicle body. The bracket 7 is hung and supported by being fastened with bolts 8 in a state of being overlapped with the bracket 7.

【0012】上述の如きエンジン冷却装置において、ラ
ジエータ11の後面には該ラジエータ11を通過後の風
を整流してカウンタウェイト1の空洞部2へ誘導するた
めの左右の整流板13が取付けられている。左右の整流
板13は図3に示すように、ラジエータ11の後面に平
行な平面を有する取付片13aと、この取付片13aに
直角でかつ後方に延在する整流片13bとから略L字形
に形成されるとともに、その折曲部において、平板から
なる上部連結板14と断面L型板からなる下部連結板1
5とにより相互に結合された一体構造となっている。
In the engine cooling device as described above, the right and left straightening vanes 13 for straightening the wind after passing through the radiator 11 and guiding it to the cavity 2 of the counterweight 1 are attached to the rear surface of the radiator 11. There is. As shown in FIG. 3, the left and right straightening vanes 13 are substantially L-shaped from a mounting piece 13a having a plane parallel to the rear surface of the radiator 11 and a straightening piece 13b extending at a right angle to the mounting piece 13a and rearward. The upper connecting plate 14 formed of a flat plate and the lower connecting plate 1 formed of an L-shaped cross section at the bent portion thereof are formed.
5 has an integral structure that is connected to each other.

【0013】図4にはラジエータ11に対する整流板1
3の取付構造が示されている。図示の如く、整流板13
はその取付片13aをラジエータ11の後面に当接した
状態で、下部連結板15の下縁をラジエータ11の下縁
部に取付けた横長のアングルバー16に差し込む一方、
上部連結板14に設けた取付片17をラジエータ11の
上面に突設されたウェルドボルト18に嵌め込んでナッ
ト19にて締着することにより該ラジエータ11に取付
けられている。
FIG. 4 shows a current plate 1 for a radiator 11.
3 mounting structure is shown. As shown, the straightening plate 13
Inserts the lower edge of the lower connecting plate 15 into the horizontally long angle bar 16 attached to the lower edge of the radiator 11 while the attachment piece 13a is in contact with the rear surface of the radiator 11.
It is attached to the radiator 11 by fitting a mounting piece 17 provided on the upper connecting plate 14 into a weld bolt 18 protruding from the upper surface of the radiator 11 and tightening it with a nut 19.

【0014】このように取付けられた整流板13は、図
1及び図2に示すように、その整流片13bがカウンタ
ウェイト1の空洞部2に向かって延在され、その後端部
が略全高にわたって空洞部2の入口に相当する前端側縦
壁面2aに対して僅かな隙間を置くように接近して配置
される。また、整流板13の整流片13bの外郭形状
は、図1に示す如くその上部側が空洞部2の前側縦壁面
2aの形状に対応する後下がりの傾斜状に設定され、ま
た下部側が空洞部2内に配置されるマフラー20との干
渉回避を考慮して切欠状に設定されている。
As shown in FIGS. 1 and 2, the flow straightening plate 13 thus mounted has its flow straightening piece 13b extending toward the hollow portion 2 of the counterweight 1, and its rear end portion over substantially the entire height. The front end side vertical wall surface 2a corresponding to the inlet of the cavity 2 is arranged close to the front wall surface 2a with a slight gap. Further, as shown in FIG. 1, the outer shape of the straightening piece 13b of the straightening plate 13 is set such that the upper side thereof has a downward slope corresponding to the shape of the front vertical wall surface 2a of the hollow portion 2, and the lower side thereof has the hollow portion 2. The cutout shape is set in consideration of avoiding interference with the muffler 20 arranged inside.

【0015】このような構成を採用したことにより、ラ
ジエータ11を抜け出た風は、整流板13の整流片13
bによりその側方への流れを抑えられ、該整流片13b
に沿って確実に整流されて空洞部2の入口へと誘導され
る。そして、その後端部が空洞部2の前側縦壁面2aに
対して接近状態に整合されているため、整流片13bか
ら空洞部2へと流れる風に乱れが生じない。かくして、
ラジエータ11を通過した風は整流状態を維持したまま
空洞部2へ誘導され、空洞部2の出口から車体後方へと
放出される。
By adopting such a configuration, the wind that has exited the radiator 11 is rectified by the rectifying piece 13 of the rectifying plate 13.
The flow to the side is suppressed by b, and the rectifying piece 13b
Is surely rectified along and guided to the inlet of the cavity 2. Further, since the rear end portion of the hollow portion 2 is aligned with the front vertical wall surface 2a of the hollow portion 2 so as to be close to each other, the wind flowing from the rectifying piece 13b to the hollow portion 2 is not disturbed. Thus,
The wind that has passed through the radiator 11 is guided to the cavity 2 while maintaining the rectified state, and is discharged from the exit of the cavity 2 toward the rear of the vehicle body.

【0016】従って、ラジエータ11を通る風は、上記
の如く通過後の流れの円滑さを保たれることで、ラジエ
ータ11を抜け出やすくなり、しかも一旦ラジエータ1
1を通過後の風はエンジンルーム4側へ回り込むことが
回避されるため、ラジエータ11の冷却効率がアップさ
れる。また、横方向への流れが抑えられることで、図2
に示す如くリヤピラー6とカウンタウェイト1との間に
隙間が存在しても、該隙間からの風の流出が抑えられる
ことから、結果として騒音の漏出も抑えられ、運転者の
耳元騒音や車体側方の作業者に対する騒音が減少され
る。
Therefore, the wind passing through the radiator 11 can easily escape from the radiator 11 because the smoothness of the flow after passing is maintained as described above, and the radiator 1 once
Since the wind after passing 1 is prevented from wrapping around to the engine room 4 side, the cooling efficiency of the radiator 11 is improved. Moreover, since the flow in the lateral direction is suppressed, the flow in FIG.
Even if there is a gap between the rear pillar 6 and the counterweight 1 as shown in Fig. 5, the outflow of air from the gap is suppressed, and as a result, the leakage of noise is also suppressed, and the noise around the driver's ears and the vehicle body side. The noise to one worker is reduced.

【0017】また、左右の整流板13の整流片13bに
は、図2に示されるように、その外郭に沿って段付構造
が施され、いわゆる一種の突条部(ビード)13cが設
定されており、このことにより整流片13bの曲げ剛性
が高められている。従って、使用に当たっての整流片1
3bの振動が抑制され、振動による騒音の発生が防止さ
れる。
Further, as shown in FIG. 2, the straightening pieces 13b of the left and right straightening vanes 13 are provided with a stepped structure along the outer contour thereof, so that a so-called kind of ridge (bead) 13c is set. As a result, the bending rigidity of the rectifying piece 13b is enhanced. Therefore, the rectifying piece 1 in use
Vibration of 3b is suppressed and generation of noise due to vibration is prevented.

【0018】ところで、整流板13をラジエータ11に
対して左右別々に取付けるとするならば、整流板13相
互の平行度或いはラジエータ11に対する直角度にバラ
ツキが出易く、従ってカウンタウェイト1の空洞部2の
前側縦壁面2aに対する整流片13bの端縁部の整合性
を得ることが困難である。
If the straightening vanes 13 are attached to the radiator 11 separately on the left and right sides, the parallelism between the straightening vanes 13 or the perpendicularity to the radiator 11 tends to vary, and therefore the cavity 2 of the counterweight 1 is likely to vary. It is difficult to obtain the matching property of the edge portion of the rectifying piece 13b with respect to the front vertical wall surface 2a.

【0019】しかしながら、本実施例にあっては、左右
の整流板13を上下の連結板14,15にて連結した一
体構造としてあるため、整流板13相互の平行度を含め
た開口寸法Lを空洞部2の縦壁面2aの開口寸法L1に
適合するように予め製造段階で設定できる。しかもラジ
エータ11に対しては、該ラジエータ11後面に平行な
平面を有する取付片13aを介して位置決めされるた
め、ラジエータ11に対して整流片13bを整流効果の
高い直角状態に容易に組付け得る。
However, in this embodiment, since the left and right baffle plates 13 are connected by the upper and lower connecting plates 14 and 15, they have an integrated structure, so that the opening dimension L including the parallelism between the baffle plates 13 is determined. It can be set in advance in the manufacturing stage so as to match the opening size L1 of the vertical wall surface 2a of the cavity 2. Moreover, since the radiator 11 is positioned through the mounting piece 13a having a plane parallel to the rear surface of the radiator 11, the rectifying piece 13b can be easily assembled to the radiator 11 in a right angle state with a high rectifying effect. .

【0020】従って、カウンタウェイト1の空洞部2の
縦壁面2aに対する整合性が容易に得られ、風の有効通
路を最大限に確保することができ、また整流板13の取
付作業自体は、下部連結板15をアングルバー16に差
し込む一方、取付片17をウエルドボルト18に嵌合し
てナット19にて締めつけることで簡単に行うことがで
きる。
Therefore, the matching of the cavity portion 2 of the counterweight 1 with the vertical wall surface 2a can be easily obtained, the effective passage of the wind can be ensured to the maximum, and the operation of attaching the flow straightening plate 13 itself is performed at the bottom. This can be easily performed by inserting the connecting plate 15 into the angle bar 16 and fitting the attachment piece 17 to the weld bolt 18 and tightening it with the nut 19.

【0021】なお、本発明は上述の実施例に限定される
ものではなく、発明の要旨を逸脱しない範囲で下記の如
き変更が可能である。 (1)図5に示す如く、上述した実施例の上下の連結板
14,15をラジエータ11に取付ける構成に加え、ラ
ジエータ11と左右の整流板13の取付片13aとの間
にゴム板等の弾性部材21を介在した上で、ラジエータ
11の左右後面に突設したウエルドボルト22にナット
23を締着して取付片13aを固定する構成に変更して
もよい。 (2)図6及び図7に示す如く、左右の取付片13aの
一部を切り落としてその下端縁をラジエータ11の後面
に取付けたバネ材からなるクランプ24に差し込むこと
により取付片13aをラジエータ11の後面に押圧固定
する構成としてもよい。なお、上記(1)及び(2)の
構成を採用したときは、ラジエータ11に対する整流板
13の強固な固定化が達成され、振動に起因してのビビ
リ音の発生を防止できる。 (3)図8に示す如く、マフラー20の配置位置によっ
ては、該マフラー20の前面付近で風の巻き込み現象が
生ずる場合があるため、このような場合にはラジエータ
11の後面下部に下部整流板25を設置する構成を採用
してもよい。下部整流板25は、左右の整流板13間に
横たわるように配置されるとともに、その基部側がラジ
エータ11の後面下部に固着された状態でマフラー20
の後面及び上面を覆う如く後方へ延在される。そして、
このような構成を採用したときは、ラジエータ11とマ
フラー20との間に風の巻き込み現象が生ずることを回
避し、それによりラジエータ11からの風の抜け出しを
良化させ得る。なお、図8ではラジエータ11に対して
下部整流板25が左右の整流板13とは別体に組付けら
れた状態で示しているが、これは一体構造であってもよ
い。 (4)整流板13の整流片13bの表面に風の通路側に
ガラスウール製の吸音材を貼着してもよい。 (5)突条部13cを単なる段付構造から溝形に変更し
たり或いは前後方向にのみ延在する形態に変更したりさ
らには複数本に増設してもよい。 (6)整流板13の取付片13aを上下方向に関して断
続的に存在する形状に変更してもよい。
The present invention is not limited to the above-described embodiments, but the following modifications can be made without departing from the gist of the invention. (1) As shown in FIG. 5, in addition to the structure in which the upper and lower connecting plates 14 and 15 of the above-described embodiment are mounted on the radiator 11, a rubber plate or the like is provided between the radiator 11 and the mounting pieces 13a of the left and right rectifying plates 13. Alternatively, the elastic member 21 may be interposed, and the nuts 23 may be fastened to the weld bolts 22 protruding from the left and right rear surfaces of the radiator 11 to fix the mounting piece 13a. (2) As shown in FIGS. 6 and 7, a part of the left and right mounting pieces 13a is cut off and the lower end edges thereof are inserted into a clamp 24 made of a spring material mounted on the rear surface of the radiator 11 to mount the mounting piece 13a on the radiator 11a. It may be configured to be pressed and fixed to the rear surface. In addition, when the configurations (1) and (2) are adopted, firm fixing of the flow straightening plate 13 to the radiator 11 is achieved, and chattering noise caused by vibration can be prevented. (3) As shown in FIG. 8, depending on the arrangement position of the muffler 20, a wind entrainment phenomenon may occur in the vicinity of the front surface of the muffler 20, and in such a case, a lower straightening plate is provided on the lower rear surface of the radiator 11. You may employ the structure which installs 25. The lower straightening vane 25 is arranged so as to lie between the left and right straightening vanes 13, and the base portion side thereof is fixed to the lower rear surface of the radiator 11 so that the muffler 20 is
It extends rearward so as to cover the rear surface and the upper surface. And
When such a configuration is adopted, it is possible to avoid the occurrence of a wind entrainment phenomenon between the radiator 11 and the muffler 20, and thereby improve the escape of the wind from the radiator 11. In FIG. 8, the lower rectifying plate 25 is shown assembled to the radiator 11 separately from the left and right rectifying plates 13, but this may be an integral structure. (4) A sound absorbing material made of glass wool may be attached to the surface of the rectifying piece 13b of the rectifying plate 13 on the wind passage side. (5) The ridges 13c may be changed from a simple stepped structure to a groove shape, to a shape extending only in the front-rear direction, or may be added to a plurality of pieces. (6) You may change the attachment piece 13a of the current plate 13 into the shape which exists intermittently about the up-down direction.

【0022】[0022]

【発明の効果】以上詳述したように、請求項1の発明に
よれば、ラジエータを通過した風をカウンタウェイトの
空洞部まで整流状態を維持して誘導できるため、ラジエ
ータから抜け出る風の抵抗を減らして冷却効率を高める
ことが可能となり、エンジン冷却装置として好適であ
る。そして、整流板により風の横方向への流出を抑える
ため、それに関連しての周囲騒音を低減させることがで
きる。また、請求項2及び請求項4の発明によれば、ラ
ジエータに対する組付作業の簡便化が図られる上に、組
付時のバラツキを減少できる。さらに請求項3の発明に
よれば、整流板の剛性アップによる振動を抑制して騒音
の発生を防止できるとともに、肉厚の低減も図られる。
As described in detail above, according to the first aspect of the present invention, the wind passing through the radiator can be guided to the cavity of the counterweight while maintaining the rectified state, so that the resistance of the wind that escapes from the radiator can be reduced. It is possible to reduce the cooling efficiency and increase the cooling efficiency, which is suitable as an engine cooling device. Further, since the flow plate suppresses the outflow of the wind in the lateral direction, it is possible to reduce the ambient noise related thereto. According to the second and fourth aspects of the invention, the work of assembling the radiator can be simplified, and the variation at the time of assembling can be reduced. Further, according to the invention of claim 3, it is possible to suppress the vibration due to the increased rigidity of the current plate to prevent the generation of noise, and also to reduce the wall thickness.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例に係る産業車両のエンジン冷却
装置を示す側断面図である。
FIG. 1 is a side sectional view showing an engine cooling device for an industrial vehicle according to an embodiment of the present invention.

【図2】同じく平断面図である。FIG. 2 is a plan sectional view of the same.

【図3】整流板を示す斜視図である。FIG. 3 is a perspective view showing a current plate.

【図4】整流板の取付構造を示す縦断面図である。FIG. 4 is a vertical cross-sectional view showing an attachment structure of a current plate.

【図5】整流板の取付構造の変更例を示す縦断面図であ
る。
FIG. 5 is a vertical cross-sectional view showing a modified example of the structure for mounting the current plate.

【図6】同じく整流板の取付構造の変更例を示す縦断面
図である。
FIG. 6 is a vertical cross-sectional view showing a modified example of the mounting structure of the current plate.

【図7】図6のA矢視図である。FIG. 7 is a view on arrow A in FIG.

【図8】左右の整流板に下部整流板を追加設定した例を
示す説明図である。
FIG. 8 is an explanatory diagram showing an example in which lower straightening vanes are additionally set to the left and right straightening vanes.

【符号の説明】[Explanation of symbols]

1…カウンタウェイト 2…空洞部 2a…前側縦壁面 9…エンジン 10…冷却ファン 11…ラジエータ 13…整流板 13a…取付片 13b…整流片 13c…突条部 14,15…連結板 DESCRIPTION OF SYMBOLS 1 ... Counterweight 2 ... Cavity 2a ... Front vertical wall 9 ... Engine 10 ... Cooling fan 11 ... Radiator 13 ... Rectifier 13a ... Mounting piece 13b ... Rectifier 13c ... Ridge 14, 15 ... Connection plate

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 冷却ファンの回転により発生した風をラ
ジエータを通過させてからカウンタウェイトの空洞部を
経て車体後方へ放出するようにした産業車両のエンジン
冷却装置であって、 前記ラジエータの後面左右両側に、該ラジエータの高さ
に略等しい高さを有する整流板を設けるとともに、該整
流板を前記カウンタウェイトの空洞部まで延長させてそ
の後端部を該空洞部の左右の縦壁面に接近して配置した
産業車両のエンジン冷却装置。
1. An engine cooling device for an industrial vehicle, wherein the wind generated by the rotation of a cooling fan is passed through a radiator and then discharged to the rear of the vehicle body through a hollow portion of a counterweight, the left and right rear surfaces of the radiator. A rectifying plate having a height substantially equal to the height of the radiator is provided on both sides, and the rectifying plate is extended to the hollow portion of the counterweight so that its rear end approaches the left and right vertical wall surfaces of the hollow portion. Engine cooling system for industrial vehicles.
【請求項2】 前記左右の整流板が、その上下で連結板
により相互に結合されて一体化された請求項1記載の産
業車両のエンジン冷却装置。
2. The engine cooling device for an industrial vehicle according to claim 1, wherein the left and right baffle plates are integrally connected to each other by connecting plates above and below the baffle plates.
【請求項3】 前記左右の整流板が、少なくとも前後方
向に延在する突条部を備えている請求項1又は2記載の
産業車両のエンジン冷却装置。
3. The engine cooling device for an industrial vehicle according to claim 1, wherein the left and right straightening vanes are provided with at least ridges extending in the front-rear direction.
【請求項4】 前記左右の整流板が、ラジエータの後面
に平行な平面を有する取付片と該取付片から後方に延在
する整流片とから平面略L字形に形成され、該取付片を
前記ラジエータ後面に突き合わせた状態で取付ける構成
とした請求項1,2又は3記載の産業車両のエンジン冷
却装置。
4. The left and right straightening vanes are formed in a substantially L-shaped plane from a mounting piece having a flat surface parallel to the rear surface of the radiator and a straightening piece extending rearward from the mounting piece. The engine cooling device for an industrial vehicle according to claim 1, wherein the radiator is attached to the rear surface of the radiator in a state of being abutted against each other.
JP259494A 1994-01-14 1994-01-14 Engine cooling device for industrial vehicle Pending JPH07205667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP259494A JPH07205667A (en) 1994-01-14 1994-01-14 Engine cooling device for industrial vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP259494A JPH07205667A (en) 1994-01-14 1994-01-14 Engine cooling device for industrial vehicle

Publications (1)

Publication Number Publication Date
JPH07205667A true JPH07205667A (en) 1995-08-08

Family

ID=11533715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP259494A Pending JPH07205667A (en) 1994-01-14 1994-01-14 Engine cooling device for industrial vehicle

Country Status (1)

Country Link
JP (1) JPH07205667A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009292363A (en) * 2008-06-06 2009-12-17 Komatsu Utility Co Ltd Working vehicle
JP2014028604A (en) * 2012-07-31 2014-02-13 Honda Motor Co Ltd Ventilation structure of radiator in saddle-riding type vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009292363A (en) * 2008-06-06 2009-12-17 Komatsu Utility Co Ltd Working vehicle
JP2014028604A (en) * 2012-07-31 2014-02-13 Honda Motor Co Ltd Ventilation structure of radiator in saddle-riding type vehicle

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