JPS5941908Y2

JPS5941908Y2 - Cab over truck roof structure

Info

Publication number: JPS5941908Y2
Application number: JP12465479U
Authority: JP
Inventors: 康祐森; 武明三平
Original assignee: 三菱自動車工業株式会社
Priority date: 1979-09-11
Filing date: 1979-09-11
Publication date: 1984-12-04
Also published as: JPS5642482U

Description

【考案の詳細な説明】本考案は空気抵抗を減少させるキャブオーバ−トラック
のルーフ構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cab-over-truck roof structure that reduces air resistance.

従来、キャブオーバ−車のパン架装において、ルーフ上
面より後方のパネルパン部分が大きく突出しているため
、空気流を大きく乱し、ルーフ上面では空気流れのはく
離を生じ、空気抵抗が増加すると共に騒音が発生すると
いう欠点があった。Conventionally, in the pan mounting of cab-over vehicles, the rear panel pan portion protrudes significantly from the top of the roof, which greatly disturbs the airflow, causing separation of the airflow on the top of the roof, increasing air resistance and causing noise. There was a drawback that this occurred.

上記の不具合を解消するために、ルーフ１上にドラッグ
ホイラ−２を設けたものがあるが、同ドラッグホイラ−
２は摩付が容易ですく、工数も多くかかり、重量が増力
口し、見栄えも悪く、かつ、冷凍車のコンプレッサーを
使用する車両に対しては、同ドラッグホイラ−２が邪魔
になるという欠点があった。In order to solve the above problem, there is a drag wheeler 2 installed on the roof 1;
Drag wheeler 2 is easy to wear, requires a lot of man-hours, is heavy, has a bad appearance, and has the disadvantage that the drag wheeler 2 gets in the way of vehicles that use refrigerated compressors. there were.

本考案は上記したような従来の欠点を解消することを目
的としてなされたものであって、その特徴とするところ
は、キャブオーバ−トラックのルーフ前部と両側部の上
端縁部に上記ルーフ上部の気流を整える断面山形の突部
を上方に向けで形設した点にあり、これにより空気の乱
流を減すると共に、空気流れのはく離領域を減少させる
ものである。The present invention has been made with the aim of solving the above-mentioned conventional drawbacks, and its feature is that the upper edge of the roof is attached to the upper edge of the front and both sides of the roof of the cab-over truck. The point is that a protrusion with a chevron-shaped cross section is formed upward to adjust the airflow, thereby reducing air turbulence and the separation area of the airflow.

以下、本考案の好適な実施例について添付図面を参照し
て詳細に説明する。Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

第２図は本考案のルーフ構造による空気流を示すキャブ
オーバトラック（パネルパン車）の一部斜視図、第３図
は第２図Ａ−Ａ線矢視断面図、第４図は第２図のＢ−Ｂ
線矢祝の断面図である。Fig. 2 is a partial perspective view of a cab over truck (panel pan truck) showing the air flow due to the roof structure of the present invention, Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 2, and Fig. 4 is Fig. 2 B-B
It is a sectional view of a line arrow.

図において、１はルーフ、３は前部上端縁部の山形突部
、３′は両側部上端縁部の山形突部、４は貨物積載部の
パンである。In the figure, 1 is a roof, 3 is a chevron-shaped protrusion on the upper edge of the front part, 3' is a chevron-shaped protrusion on the upper edge of both sides, and 4 is a pan of the cargo loading area.

第２図において、ルーフ１の前部と両側部の上端縁部に
第４図および第３図に示す山形突部３および３′が形設
される。In FIG. 2, chevron-shaped protrusions 3 and 3' shown in FIGS. 4 and 3 are formed at the upper end edges of the front and both sides of the roof 1. As shown in FIG.

この突部３，３′はルーフ成形時に一体形成するのが工
数上望ましいが、別体に作りスポット溶接等で固着して
もよい。Although it is desirable to form these protrusions 3, 3' integrally during roof molding in terms of man-hours, they may be made separately and fixed by spot welding or the like.

すなわち、新車は一体成形、既存車は別体として改修す
る形を取ることになる。In other words, new cars will be refurbished as one piece, while existing cars will be refurbished as separate parts.

図示ではパンを示しているが、その他冷凍車、ホロ付カ
ーゴも同様である。In the illustration, bread is shown, but the same applies to other refrigerated cars and cargo with hoops.

上記山形突部３，３′を設けると、第２図の実線矢印、
第４図の一点鎖線で示すように空気流の理想曲線となり
パン架装時の空気抵抗を減じ、従来あったはく離領域を
減少させることが出来る。When the chevron-shaped protrusions 3, 3' are provided, the solid line arrow in FIG.
As shown by the dashed line in FIG. 4, the airflow becomes an ideal curve, which reduces air resistance when mounting the pan and reduces the conventional separation area.

本考案によると、山形突部を整流ガイドとして上記の如
く空気抵抗の減少を計り、中央から後端部において、従
来と同様のルーフデツキ等の利便に供するためのスペー
ス形状を持ち、前端部分の空気流理想曲線の一部を左右
まで廻り込ませる事により、旋回時のルーフ上の荷物の
落下防止ができ、サイドビューは従来車と変らない輪郭
を提供し得るというデザイン上のメリットをも兼ね備え
ている。According to the present invention, the angle-shaped protrusion is used as a rectification guide to reduce air resistance as described above, and from the center to the rear end there is a space shape for convenience such as roof decking, similar to the conventional one, and the front end part By extending part of the ideal flow curve to the left and right, it is possible to prevent luggage from falling on the roof when turning, and the side view has the design benefits of providing a contour similar to that of conventional vehicles. There is.

本考案によると、さらに、はく離領域を減少することが
できるので、上記空気抵抗の減少により燃料消費率の向
上を計ることができる。According to the present invention, since the separation area can be further reduced, the fuel consumption rate can be improved by reducing the air resistance.

例えば１０φの空気抵抗低減をすることにより、８０〜
１００Ｉａｎ／ｈ走行で３〜５係の燃料消費率の向上が
できる効果を有する。For example, by reducing air resistance by 10φ, 80~
It has the effect of improving the fuel consumption rate by 3 to 5 when traveling at 100 Ian/h.

[Brief explanation of drawings]

第１図は従来のドラッグホイラーを設けたトラックの斜
視図、第２図は本考案のルーフ構造を示す斜視図、第３
図は第２図のＡ−Ａ線矢視断面図、第４図は第２図のＢ
−Ｂ線矢視断面図である。Figure 1 is a perspective view of a truck equipped with a conventional drag wheeler, Figure 2 is a perspective view showing the roof structure of the present invention, and Figure 3 is a perspective view of a truck equipped with a conventional drag wheeler.
The figure is a sectional view taken along line A-A in Figure 2, and Figure 4 is B in Figure 2.
- It is a sectional view taken along the line B.

Claims

[Scope of utility model registration request]

A roof structure for a cab-over truck, characterized in that a protrusion with a chevron-shaped cross section is formed upward on the upper edge of the front and both sides of the roof of the cab-over truck to adjust the air flow in the upper part of the roof.