JPS595605Y2 - tire air cooling system - Google Patents

Description

【考案の詳細な説明】 本考案は、とくに、複輪タイヤを備えた車輌に最適なタ
イヤの空冷装置に関する。[Detailed Description of the Invention] The present invention particularly relates to a tire air cooling system that is most suitable for vehicles equipped with dual-wheel tires.

従来、トラックやバス等の大型車輌では、後軸に複輪タ
イヤ機構Ｄを採用し、この複輪タイヤ機構Ｄは、第１図
ａのような一駆動方式Ａや第１図ｂのような一駆動＋遊
輪方式Ｂ、あるいは、第１図Ｃのような二駆動方式Ｃの
ように組合わされている。Conventionally, large vehicles such as trucks and buses have adopted a double-wheel tire mechanism D on the rear axle. They are combined in a one-drive + idle wheel system B, or a two-drive system C as shown in FIG. 1C.

ところで、複輪タイヤ機構Ｄを採用した場合、走行中の
冷却空気流が車体でさえぎられて、外側タイヤ１よりも
内側タイヤ２の方が、空冷される機会が少なく、かつ、
ブレーキドラムやアクスル軸などからの発熱の影響を受
けやすいので、タイヤ温度が著しく上昇する結果、タイ
ヤ損傷や摩耗が多くなってタイヤ寿命が短くなるもので
あった。By the way, when the double-wheel tire mechanism D is adopted, the cooling air flow during running is blocked by the vehicle body, and the inner tires 2 have fewer opportunities to be air-cooled than the outer tires 1, and
Since tires are susceptible to heat generation from brake drums, axle shafts, etc., tire temperatures rise significantly, resulting in increased tire damage and wear, and shortened tire life.

本考案は、上記従来の問題点に鑑みてなされたもので、
車輌走行中に、車体内方のタイヤを空冷して、車体外方
のタイヤとほぼ同等のタイヤ温度に保てるようにしたタ
イヤの空冷装置を提供するものである。This invention was made in view of the above-mentioned conventional problems.
To provide a tire air cooling device that air-cools tires inside a vehicle body and maintains them at substantially the same temperature as tires outside the vehicle body while the vehicle is running.

すなわち、本考案に係るタイヤの空冷装置は車体内方の
後輪に複輪タイヤを備えた車輌において、車輌の走行方
向若しくは側方に向けて開口させた空気取入口を有する
冷却筒を車体の側部に取付け、該冷却筒の空気吹出口を
、上記車体内方の後輪の複輪タイヤの内側タイヤに臨ま
せて、車輌走行中、後輪タイヤを強制空冷するようにし
たことを特徴とするものである。That is, the tire air cooling device according to the present invention is used in a vehicle equipped with dual-wheel tires on the rear wheels inside the vehicle body. It is attached to the side, and the air outlet of the cooling tube faces the inner tire of the rear dual-wheel tire inside the vehicle body, so that the rear tire is forcibly air-cooled while the vehicle is running. That is.

以下、本考案の実施例を添付図面に従って詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

第１図ａおよび第２図ｂに示すように、一駆動＋遊輪方
弐Ｂ若しくは二駆動方式Ｃの場合には、とくに、最後軸
の内側タイヤ２ａが、前方の内側タイヤ２ｂでさえぎら
れて、走行中の空冷効果がほとんど期待できない。As shown in Fig. 1a and Fig. 2b, in the case of one drive + freewheel system two B or two drive system C, the inner tire 2a of the rearmost axle is blocked by the front inner tire 2b. , almost no air cooling effect can be expected while driving.

そこで、車体（図示せず）の側部に、車輌の走行方向Ｅ
に向けて開口させた空気取入口３を有する筒状の冷却筒
４を取付けて、該冷却筒４下面の空気吹出口５を内側タ
イヤ２ａの上方に臨ませるように設置する。Therefore, on the side of the vehicle body (not shown), there is a
A cylindrical cooling cylinder 4 having an air intake port 3 opened toward the cooling cylinder is installed so that the air outlet 5 on the lower surface of the cooling cylinder 4 faces above the inner tire 2a.

こうすれば、車輌の走行中には、空気取入口３から取入
れられた空気は、図中矢印で示すように、冷却筒４を通
って空気吹出口５から内側タイヤ２ａに向って吹出し、
内側タイヤ２ａを空冷するようになる。In this way, while the vehicle is running, the air taken in from the air intake port 3 passes through the cooling cylinder 4 and blows out from the air outlet 5 toward the inner tire 2a, as shown by the arrow in the figure.
The inner tire 2a is now air-cooled.

このとき、前方の内側タイヤ２ｂも空冷する必要がある
場合には、冷却筒４下面に、内側タイヤ２ｂの上方に臨
む空気吹出口をさらに開口させればよい。At this time, if the front inner tire 2b also needs to be air-cooled, an air outlet facing above the inner tire 2b may be further opened on the lower surface of the cooling tube 4.

上記実施例は、複輪タイヤ機構Ｄにおいて内側タイヤ２
ａ，２ｂの空冷を対象としたが、第３図ａおよび第３図
ｂに示すように、内・外側タイヤ１，２とも車体内方へ
格納される箱型ボディーバス等の場合には、車体の側面
６に空気取入口３を開口させると共に、冷却筒４下面の
空気吹出口５を、内外側タイヤ１，２の上方に臨ませる
ようにして、内・外側タイヤ１，２を同時に空冷するよ
うにすればよい。In the above embodiment, in the double-wheel tire mechanism D, the inner tire 2
Although the target is air cooling of tires 1 and 2b, as shown in FIGS. 3a and 3b, in the case of a box-body bus etc. in which both the inner and outer tires 1 and 2 are stored inside the vehicle body, The air intake port 3 is opened on the side surface 6 of the vehicle body, and the air outlet 5 on the lower surface of the cooling cylinder 4 is made to face above the inner and outer tires 1 and 2, so that the inner and outer tires 1 and 2 are simultaneously air-cooled. Just do it.

従って、場合によっては、複輪タイヤ機構Ｄのすべての
タイヤ１，２を空冷するように、空気吹出口５の個数や
形状を設定することが可能である。Therefore, depending on the case, it is possible to set the number and shape of the air outlets 5 so that all the tires 1 and 2 of the dual-wheel tire mechanism D are air-cooled.

なお、複輪タイヤ機構Ｄを備えない車輌でも、タイヤが
車体内方へ格納される場合には、上記の冷却筒４を取付
けると上記と同様にして空冷することができる。Note that even in a vehicle that is not equipped with the dual-wheel tire mechanism D, if the tires are stored inside the vehicle body, air cooling can be performed in the same manner as described above by attaching the cooling tube 4 described above.

また、上記各実施例における空冷の効果は、単にタイヤ
１，２のみならず、ブレーキドラムやアクスル軸等にも
及ぶから、これらの発熱の影響を未然に防止することが
できる。Further, the effect of air cooling in each of the above embodiments extends not only to the tires 1 and 2 but also to the brake drum, axle shaft, etc., so that the effects of heat generation on these can be prevented.

上記のように構或した冷却筒４を実際に車輌に取付けて
実験したテ゛一夕を次に説明する。The following describes an experiment in which the cooling tube 4 constructed as described above was actually attached to a vehicle.

上記条件によれば、縦軸にタイヤ温度℃ （最高 タイヤ温度）を、横軸に走行速度（ＫＭ／Ｈ）をとった
第４図ａの温度上昇グラフに示すように短破線ａで示す
冷却筒４のない内側タイヤでは、４０ＫＭ／Ｈで約８０
℃，８０ＫＭ／Ｈで約９５℃に温度上昇するのに対して
、実線ｂで示す冷却筒４のある内側タイヤでは、４０Ｋ
Ｍ／Ｈで約６５℃，８０ＫＭ／Ｈで約８２℃にとどまり
、長破線Ｃで示す冷却筒４のない外側タイヤとほぼ同等
の温度上昇に保つことができた。According to the above conditions, as shown in the temperature rise graph in Figure 4a, where the vertical axis shows the tire temperature °C (maximum tire temperature) and the horizontal axis shows the running speed (KM/H), cooling is indicated by a short broken line a. With the inner tire without tube 4, the speed is about 80 at 40KM/H.
℃, the temperature rises to about 95℃ at 80KM/H, whereas the temperature rises to 40K for the inner tire with cooling tube 4 shown by solid line b.
The temperature rise remained at about 65° C. at M/H and about 82° C. at 80 KM/H, and was able to be maintained at approximately the same temperature rise as the outer tire without the cooling tube 4 shown by the long broken line C.

上記の条件によれば、縦軸にタイヤ温度℃（最高タイヤ
温度）を、横軸に走行速度（ＫＭ／Ｈ）をとった第４図
ｂの温度上昇グラフに示すように、短破線ａで示す冷却
筒４のない内側タイヤでは、４０ＫＭ／Ｈで約９０℃，
８０ＫＭ／Ｈで約１００℃に温度上昇するのに対し、実
線ｂで示す冷却筒４のある内側タイヤでは、４０ＫＭ／
Ｈで約８０℃，８０ＫＭ／Ｈで約９０℃にとどまり、長
破線Ｃで示す冷却筒４のない外側タイヤとほぼ同等の温
度上昇に保つことができた。According to the above conditions, as shown in the temperature increase graph in Figure 4b, where the vertical axis shows tire temperature °C (maximum tire temperature) and the horizontal axis shows running speed (KM/H), the short broken line a For the inner tire without the cooling tube 4 shown, the temperature is about 90℃ at 40KM/H.
While the temperature rises to about 100°C at 80KM/H, the temperature rises to about 100℃ at 80KM/H, whereas the temperature rises at 40KM/H in the inner tire with cooling tube 4 shown by the solid line b.
The temperature rise remained at about 80° C. at H and about 90° C. at 80 KM/H, and was able to maintain the temperature rise approximately equal to that of the outer tire without the cooling tube 4 shown by the long broken line C.

以上の説明からも明らかなように、本考案は、車体に冷
却筒を取付けて、空気吹出口を車体内方のタイヤに臨ま
せるようにし、車輌走行中にタイヤを空冷するようにし
たタイヤの空冷装置であるから、車体内方のタイヤを効
果的に空冷することができ、タイヤの損傷や摩耗が激減
してタイヤ寿命を大巾に向上することができる。As is clear from the above explanation, the present invention is a tire system in which a cooling tube is attached to the vehicle body so that the air outlet faces the tires inside the vehicle body, and the tires are air-cooled while the vehicle is running. Since it is an air cooling device, the tires inside the vehicle body can be effectively air cooled, and damage and wear on the tires can be drastically reduced, greatly extending the life of the tires.

同時に、車輌自体（ブレーキドラム、アクスル軸等）も
冷却できるから、車輌にも好影響を与えることができる
。At the same time, the vehicle itself (brake drum, axle shaft, etc.) can also be cooled, which has a positive effect on the vehicle.

さらに、本考案は、空気取入口と空気吹出口とを設けた
冷却筒を車体に取付ければよいから、構造はきわめて簡
単で、コスト安に製作でき、而も既存の車輌にも容易に
取付けることができる等、種々の利点を有し、実用上の
価値が大きいものである。Furthermore, the present invention has an extremely simple structure, can be manufactured at low cost, and can be easily installed on existing vehicles, since all that is required is to attach a cooling tube with an air intake port and an air outlet to the vehicle body. It has various advantages such as being able to perform various functions, and is of great practical value.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ〜第１図Ｃは複輪タイヤ機構の駆動方式を夫々
示す説明図、第２図ａは冷却筒を備えた車輌の平面図、
第２図ｂは第２図ａの側面図、第３図ａは冷却筒を備え
たタイヤ格納タイプの車輌の平面図、第３図ｂは第３図
ａの側面図、第４図ａおよび第４図ｂは、夫々、縦軸に
タイヤ温度℃を、横軸に走行速度（ＫＭ／Ｈ）をとった
タイヤの温度上昇グラフである。 Ａ・・・・・・一駆動方式、Ｂ・・・・・・一駆動＋遊
輪方式、Ｃ・・・・・・二駆動方式、Ｄ・・・・・・複
輪タイヤ機構、１・・・・・・外側タイヤ、２ａ，２ｂ
・・・・・・内側タイヤ、３・・・・・・空気取入口、
４・・・・・・冷却筒、５・・・・・・空気吹出口。Figures 1a to 1C are explanatory diagrams showing the drive system of the dual-wheel tire mechanism, respectively, Figure 2a is a plan view of a vehicle equipped with a cooling cylinder,
Fig. 2b is a side view of Fig. 2a, Fig. 3a is a plan view of a tire storage type vehicle equipped with a cooling tube, Fig. 3b is a side view of Fig. 3a, Fig. 4a and FIG. 4b is a tire temperature increase graph in which the vertical axis represents the tire temperature °C and the horizontal axis represents the running speed (KM/H). A...One drive system, B...One drive + idle wheel system, C...Two drive system, D...Double wheel tire mechanism, 1... ...Outer tires, 2a, 2b
...Inner tire, 3...Air intake port,
4...Cooling cylinder, 5...Air outlet.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 車体内方の後輪に複輪タイヤを備えた車輌において、車
体の側部に冷却筒が取付けられ、該冷却筒の空気取入口
は、車輌の走行方向若しくは側方に向けて開口され、該
冷却筒の空気吹出口は、車体内方の後輪の複輪タイヤの
上方から内側タイヤの外周面に向けて開口されていて、
車輌走行風を空気取入口から取入れて空気吹出口から吹
出すことにより、後輪の内側タイヤの外周面を強制空冷
するようにしたことを特徴とするタイヤの空冷装置。In a vehicle equipped with dual tires on the rear wheels inside the vehicle body, a cooling tube is attached to the side of the vehicle body, and the air intake port of the cooling tube is opened toward the running direction of the vehicle or to the side. The air outlet of the cooling cylinder is opened from above the rear dual-wheel tire inside the vehicle body toward the outer peripheral surface of the inner tire.
A tire air cooling device characterized in that the outer circumferential surface of an inner tire of a rear wheel is forcedly air-cooled by taking in vehicle running air from an air intake port and blowing it out from an air outlet.