JP3445420B2 - Rear view device for vehicles - Google Patents
Rear view device for vehiclesInfo
- Publication number
- JP3445420B2 JP3445420B2 JP24875495A JP24875495A JP3445420B2 JP 3445420 B2 JP3445420 B2 JP 3445420B2 JP 24875495 A JP24875495 A JP 24875495A JP 24875495 A JP24875495 A JP 24875495A JP 3445420 B2 JP3445420 B2 JP 3445420B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- reflecting mirror
- mirror
- reflecting
- image
- 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.)
- Expired - Fee Related
Links
Landscapes
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、車両後方下部の
映像をミラーで反射して運転者の視点に導くための車両
用後方視認装置に関し、リヤスポイラーにミラーを配置
する場合に、車両後方へのミラーの突出量を小さくする
とともに、リヤウインドウを通して得られる直接後方視
界を遮らないようにリヤスポイラーをデザインすること
を可能にしたものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear view device for a vehicle for reflecting an image of the lower rear part of the vehicle by a mirror and guiding it to a driver's point of view. The rear spoiler can be designed so that the amount of projection of the mirror is reduced and the direct rear view obtained through the rear window is not obstructed.
【０００２】[0002]
【従来の技術】乗用車その他の車両においては、運転席
からリヤウインドウガラスを通して車両後方を見た場合
に車両後方下部が死角となる。特に、車高が高い１ボッ
クス車等では死角が大きい。そこで、車両後方下部の映
像を運転者が視認できるように車両後部にリヤアンダー
ミラー等と呼ばれる反射鏡が装着される。2. Description of the Related Art In passenger cars and other vehicles, when a vehicle rear side is viewed from a driver's seat through a rear window glass, a blind spot is formed at a lower rear portion of the vehicle. In particular, a blind spot is large in a one-box car or the like having a high vehicle height. Therefore, a reflecting mirror called a rear under mirror or the like is attached to the rear portion of the vehicle so that the driver can visually recognize an image of the lower rear portion of the vehicle.
【０００３】従来のリヤアンダーミラーは、図２に示す
ように、車両後部の外側にリヤウインドウ１１を臨むよ
うにブラケット１０を介して凸面鏡１２を取り付けたも
のが一般的であった。また、別の形式のリヤアンダーミ
ラーとして、実開平２−１７４４１号公報には、図３に
示すように、車両後部のリヤスポイラー１４の下面にリ
ヤウインドウ１５を臨むようにミラー１６を取り付けた
ものが開示されている。また、実開平１−１４５６４２
号公報にも同様に、車両後部のリヤスポイラーの下面に
リヤウインドウを臨むようにミラーを取り付けたものが
開示されている。また、実開平２−４２８４９号公報に
は、図４に示すように、リヤウインドウ１７の室内側に
２枚のミラー１８，１９を配し、ミラー１８で車両後方
下部の映像を捉え、これをミラー１９で反射して運転者
の視点に導くようにしたものが開示されている。As shown in FIG. 2, a conventional rear under mirror generally has a convex mirror 12 mounted via a bracket 10 so as to face the rear window 11 on the outer side of the rear portion of the vehicle. As another type of rear under mirror, in Japanese Utility Model Laid-Open No. 2-17441, a mirror 16 is attached to the lower surface of a rear spoiler 14 at the rear of the vehicle so as to face the rear window 15, as shown in FIG. It is disclosed. In addition, the actual Kaihei 1-145642
Similarly, the publication also discloses a rear spoiler at the rear of the vehicle, in which a mirror is attached so as to face the rear window. In Japanese Utility Model Laid-Open No. 2-42849, as shown in FIG. 4, two mirrors 18 and 19 are arranged on the inside of the rear window 17, and the mirror 18 captures an image of the lower rear part of the vehicle. It is disclosed that the light is reflected by the mirror 19 and guided to the driver's viewpoint.
【０００４】[0004]
【発明が解決しようとする課題】前記図２、図３のリヤ
アンダーミラーによれば、車両直後の下方位置を視認す
るのは比較的容易であるが、車両後方にやや離れた位置
を視認するには、ミラー面の取付角度を浅く（水平に近
く）しなければならず、ミラー面の大きさに比して見え
る映像範囲が極端に狭くなる。このため、ミラーの車両
前後方向の長さを長くして映像範囲を広げる必要があ
り、車両後方へのミラーの突出量が大きくなる問題があ
った。特に、図３のものでは、ミラー１６の突出量の増
大は、リヤスポイラー１４の大型化を招いていた。ま
た、図３のものでは、リヤスポイラー１４がリヤウイン
ドウ１５の上部を覆う形となるため、ミラー１６をリヤ
スポイラー１４の長手方向（車両幅方向）の一部にのみ
配設する場合であっても、リヤスポイラー１４はリヤウ
インドウ１５の上部の幅方向全体に覆い被さる形とな
り、リヤウインドウ１５を通して直接得られるはずの後
方視界が大きく遮られる欠点があった。また、リヤスポ
イラー１４のデザインも好ましいものではなかった。According to the rear under mirror of FIGS. 2 and 3, it is relatively easy to visually recognize the lower position immediately after the vehicle, but visually recognize the position slightly distant from the rear of the vehicle. For this reason, the mounting angle of the mirror surface must be shallow (close to horizontal), and the image range that can be seen is extremely narrow compared to the size of the mirror surface. Therefore, it is necessary to increase the length of the mirror in the vehicle front-rear direction to widen the image range, and there is a problem that the amount of projection of the mirror toward the rear of the vehicle becomes large. Particularly, in the case of FIG. 3, the increase in the protrusion amount of the mirror 16 causes the rear spoiler 14 to become large. Further, in the case of FIG. 3, since the rear spoiler 14 covers the upper portion of the rear window 15, even when the mirror 16 is disposed only in a part of the rear spoiler 14 in the longitudinal direction (vehicle width direction), The rear spoiler 14 has a shape that covers the entire upper portion of the rear window 15 in the width direction, and has a drawback that the rear view that should be directly obtained through the rear window 15 is largely obstructed. Also, the design of the rear spoiler 14 was not preferable.
【０００５】前記図４のリヤアンダーミラーによれば、
ミラー１８の視界範囲がリヤウインドウ１７の下縁部で
遮られるため、車両後方直後位置が死角となる問題があ
った。また、車室内側に２枚のミラー１８，１９が必要
であり、ミラー１９はミラー１８の視界範囲を遮らない
ように低い位置に配置しなければならず、後部座席の乗
員で見えなくなるおそれがあった。According to the rear under mirror of FIG. 4,
Since the field of view of the mirror 18 is blocked by the lower edge of the rear window 17, there is a problem that the position immediately behind the vehicle becomes a blind spot. Further, two mirrors 18 and 19 are required on the inside of the vehicle compartment, and the mirror 19 must be arranged at a low position so as not to obstruct the view range of the mirror 18, which may be invisible to a passenger in the rear seat. there were.
【０００６】この発明は、前記従来の技術における欠点
を解決して、リヤスポイラーにミラーを配置する場合
に、車両後方へのミラーの突出量を小さくするととも
に、リヤウインドウを通して得られる直接後方視界を遮
らないようにリヤスポイラーをデザインすることを可能
にし、また後部座席に乗員がいても容易に視認すること
ができるようにし、さらには車両後方の映像を別途広角
に取り込めるようにした車両用後方視認装置を提供しよ
うとするものである。The present invention solves the above-mentioned drawbacks of the prior art, and when the mirror is arranged in the rear spoiler, the projection amount of the mirror to the rear of the vehicle is reduced and the direct rear view obtained through the rear window is blocked. It is possible to design the rear spoiler so that it does not exist, and it is possible to easily see even if there is an occupant in the back seat, and also a rear view device for the vehicle that can capture the image of the rear of the vehicle separately in a wide angle. It is the one we are trying to provide.
【０００７】[0007]
【課題を解決するための手段】この発明は、リヤスポイ
ラーの下面に第１の反射鏡を取り付け、リヤウインドウ
の車室内側に第２の反射鏡を配して、第１の反射鏡で反
射された車両後方下部の映像をリヤウインドウを透過し
て第２の反射鏡に入射し、この第２の反射鏡で車両前方
に向けて反射して運転席の方向へ導くようにしたもので
ある。これによれば、第１の反射鏡は車両後方下部の映
像を第２の反射鏡に向けて前方斜め下方に反射すればよ
いので、直接運転者の視点に向けて水平方向に反射する
場合に比べて、ミラー面の大きさに比して見える映像範
囲が広がり、第１の反射鏡の車両前後方向の長さを抑え
て、車両後方への第１の反射鏡の突出量を少なくするこ
とができる。これにより、リヤスポイラーも小型化する
ことができる。また、リヤスポイラーをリヤウインドウ
の上部に覆い被さらないようにデザインすることができ
るので、第２の反射鏡をリヤウインドウの幅方向の一部
に配置するデザインにすれば、第２の反射鏡によって遮
られる直接後方視界の範囲を小さくすることができ、直
接後方視界の視認性を向上させることができる。また、
リヤスポイラーのデザインも良好なものとなる。According to the present invention, a first reflecting mirror is attached to the lower surface of a rear spoiler, and a second reflecting mirror is arranged on the inside of a rear window inside a vehicle, and is reflected by the first reflecting mirror. The image of the lower rear part of the vehicle is transmitted through the rear window and is incident on the second reflecting mirror, which is reflected toward the front of the vehicle and guided toward the driver's seat. According to this, the first reflecting mirror may reflect the image of the lower rear part of the vehicle toward the second reflecting mirror obliquely forward and downward. Therefore, when the image is reflected in the horizontal direction directly toward the driver's viewpoint. In comparison, the visible image range is expanded compared to the size of the mirror surface, the length of the first reflecting mirror in the vehicle front-rear direction is suppressed, and the protrusion amount of the first reflecting mirror to the rear of the vehicle is reduced. You can As a result, the rear spoiler can also be downsized. Also, since the rear spoiler can be designed so as not to cover the upper part of the rear window, if the second reflecting mirror is arranged in a part of the rear window in the width direction, the second reflecting mirror can be used. The range of the blocked direct rear view can be reduced, and the visibility of the direct rear view can be improved. Also,
The rear spoiler design is also good.
【０００８】また、第１の反射鏡は車外に配置されるの
で、視界範囲がリヤウインドウによって遮られることが
なく、車両後方直後位置まで容易に視界範囲を広げるこ
とができる。また、車室内には１枚の反射鏡（第２の反
射鏡）を配置すればよいので車室内側の装置をコンパク
トに配置することができ、しかも第２の反射鏡は車外に
配置される第１の反射鏡の視界範囲を遮らないので、比
較的高い位置に配置することができ、後部座席に乗員が
いても容易に視認することができる。また、車両後方下
部の映像を第１、第２の反射鏡で偶数回反射するため、
映像が正立像となり（前記図２、図３の従来のリヤアン
ダーミラーでは逆転像となる。）見易く、誤認が少なく
なる。Further, since the first reflecting mirror is arranged outside the vehicle, the field of view is not obstructed by the rear window, and the field of view can be easily expanded to the position immediately behind the vehicle. Further, since it is sufficient to arrange one reflecting mirror (second reflecting mirror) inside the vehicle, the device inside the vehicle can be arranged compactly and the second reflecting mirror is arranged outside the vehicle. Since it does not block the view range of the first reflecting mirror, it can be placed at a relatively high position and can be easily visually recognized even if an occupant is in the rear seat. Also, since the image of the lower rear part of the vehicle is reflected by the first and second reflecting mirrors an even number of times,
The image becomes an erected image (it becomes an inverted image in the conventional rear under mirror of FIGS. 2 and 3), and it is easy to see and the false recognition is reduced.
【０００９】また、第１の反射鏡と第２の反射鏡との間
であってリヤウインドウの車室内側にプリズムを配設
し、第１の反射鏡で反射されてリヤウインドウを透過し
た車両後方下部の映像をこのプリズムでリヤウインドウ
寄りに屈折させて第２の反射鏡に入射することにより、
車室内に配置される第２の反射鏡を比較的立てた姿勢に
配置することができ、車室内側の装置を薄くコンパクト
に配置することができる。In addition, a prism is disposed between the first reflecting mirror and the second reflecting mirror on the vehicle interior side of the rear window, and the vehicle is reflected by the first reflecting mirror and transmitted through the rear window. By refracting the image of the lower rear part toward the rear window with this prism and making it enter the second reflecting mirror,
The second reflecting mirror arranged in the vehicle compartment can be arranged in a relatively upright posture, and the apparatus on the vehicle compartment side can be arranged thinly and compactly.
【００１０】また、第１の反射鏡をリヤスポイラーの延
在方向に直角な平面で切断した反射面の断面形状を湾曲
した凸面に形成することにより、車両後方の前後方向に
広い視界範囲を確保することができる。また、第１、第
２の反射鏡を表面に反射面を構成した表面鏡で構成する
ことにより、２重像の無い明瞭な間接視界が得られる。Further, the first reflecting mirror is cut along a plane perpendicular to the extending direction of the rear spoiler, and the cross-sectional shape of the reflecting surface is formed into a curved convex surface to secure a wide field of view in the front-rear direction behind the vehicle. be able to. Further, by forming the first and second reflecting mirrors by surface mirrors each having a reflecting surface, a clear indirect field of view without double images can be obtained.
【００１１】また、第２の反射鏡の上方のリヤウインド
ウを臨む位置に凹レンズを配設し、車両後方の映像をリ
ヤウインドウを通してこの凹レンズで広角に取り込ん
で、運転者の視点の方向に直接導くことにより、第１、
第２の反射鏡で車両後方下部の映像を比較的大きく取り
込むとともに、別途凹レンズで車両後方向の映像を広角
に取り込むことができる。この場合、凹レンズをフレネ
ル凹レンズで構成すれば薄く構成することができ、車室
内側の装置を薄くコンパクトに構成することができる。Further, a concave lens is arranged at a position facing the rear window above the second reflecting mirror, and an image of the rear of the vehicle is taken in at a wide angle by the concave lens through the rear window and is directly guided in the direction of the driver's viewpoint. By doing so,
It is possible to capture a comparatively large image of the lower rear part of the vehicle with the second reflecting mirror, and separately capture an image of the rearward direction of the vehicle with a wide angle using a concave lens. In this case, if the concave lens is made of a Fresnel concave lens, it can be made thin, and the device inside the vehicle can be made thin and compact.
【００１２】[0012]
（実施の形態１）この発明の第１の実施の形態を以下説
明する。図５はその概要を示す車両後部の構成である。
車両２０のリヤウインドウ２２の外側上方位置には、リ
ヤスポイラー（ルーフスポイラー）２４が車両幅方向に
沿って水平方向に延在した状態で車両後方に突出して車
両ボデー２６（屋根、後部ドア上部等）に取り付けた状
態で配設されている。リヤスポイラー２４の下面の車両
幅方向中央部（または左右にずれ位置であってもよ
い。）には、凸面鏡で構成された反射鏡２８（第１の反
射鏡）が反射面２８ａを下方または斜め下方に向けて、
はめ込み、ねじ止め、接着、粘着等により取り付けられ
ている。リヤウインドウ２２の車室内側の上部位置に
は、反射鏡２８と対面する位置に、反射鏡２８と略々同
じ車両幅方向の寸法を有する車室内側装置３０が接着、
粘着、ねじ止め等によって取り付けられている。(Embodiment 1) A first embodiment of the present invention will be described below. FIG. 5 shows the configuration of the rear part of the vehicle showing the outline thereof.
At a position above the rear window 22 of the vehicle 20, a rear spoiler (roof spoiler) 24 extends horizontally in the vehicle width direction and projects rearward of the vehicle to project a vehicle body 26 (a roof, an upper portion of a rear door, etc.). It is installed in the state of being attached to. At the center of the lower surface of the rear spoiler 24 in the vehicle width direction (or at a position that is laterally offset), a reflecting mirror 28 (first reflecting mirror) formed of a convex mirror is located below the reflecting surface 28a or obliquely below. Towards
It is attached by fitting, screwing, adhesion, adhesion, etc. A vehicle interior side device 30 having substantially the same dimension in the vehicle width direction as the reflection mirror 28 is bonded to a position facing the reflection mirror 28 at an upper position on the vehicle interior side of the rear window 22,
It is attached by adhesion, screwing, etc.
【００１３】図５のＡ−Ａ断面（リヤスポイラー２４の
延在方向に直角な平面で切断した断面）を図１に示す。
反射鏡２８は正面形状が略々四角形で、一定曲率の凸状
の球面（例えば半径１０００mm程度の球面）を有する凸
面鏡で構成されている。反射鏡２８は球面状に湾曲して
いるプラスチック板、透明ガラス板等の表面にクロム、
アルミ等の金属反射膜を成膜して表面鏡として構成され
ている。FIG. 1 shows an AA cross section of FIG. 5 (a cross section taken along a plane perpendicular to the extending direction of the rear spoiler 24).
The reflecting mirror 28 has a substantially quadrangular front shape, and is composed of a convex mirror having a convex spherical surface with a constant curvature (for example, a spherical surface having a radius of about 1000 mm). The reflecting mirror 28 is made of chrome on the surface of a plastic plate, a transparent glass plate or the like which is curved in a spherical shape.
It is configured as a surface mirror by forming a metal reflective film such as aluminum.
【００１４】車室内側装置３０はケース３２を有し、こ
のケース３２がリヤウインドウ２２の内側の面の上部中
央位置に固定配設されている。ケース３２の車両後方寄
りの部分は全面が開口部３４として形成されている。ケ
ース３２の車両前方寄りの面には、開口部３６，３８が
上下２段に形成されている。上段の開口部３６には、正
面形状が横長四角形状のフレネル凹レンズ４０がその面
を略々垂直に立てた状態でまたは車両後方やや下方に向
けて傾けた状態で配設されている。フレネルレンズ４０
は、図６に正面図および縦断面図を示すように、片面４
０ａが平坦面に形成され、他面４０ｂがフレネル凹レン
ズを形成する凹凸面に形成され、これによりフレネルレ
ンズ４０は上下方向および左右方向に広角にした車両後
方水平方向または水平方向よりもやや下方に傾けた視界
範囲が得られる。The vehicle interior side device 30 has a case 32, and the case 32 is fixedly arranged at the center of the upper portion of the inner surface of the rear window 22. The entire surface of the case 32 near the rear of the vehicle is formed as an opening 34. On the surface of the case 32 near the front of the vehicle, openings 36 and 38 are formed vertically in two steps. A Fresnel concave lens 40 having a horizontally long quadrangular front shape is disposed in the upper opening 36 in a state in which the surface thereof is erected substantially vertically or in a state of being inclined toward the vehicle rearward or slightly downward. Fresnel lens 40
As shown in the front view and vertical sectional view in FIG.
0a is formed as a flat surface, and the other surface 40b is formed as an uneven surface forming a Fresnel concave lens, whereby the Fresnel lens 40 has a wide angle in the up-down direction and the left-right direction. A tilted field of view is obtained.
【００１５】下段の開口部３８には、正面形状が横長四
角形状の反射鏡（第２の反射鏡）４２が反射面４２ａを
車両前方やや斜め上方に向けて配設されている。第２の
反射鏡４２は、一定曲率の凸状の球面（例えば半径１０
００mm程度の球面）を有する凸面鏡で構成されている。
第２の反射鏡４２は球面状に湾曲しているプラスチック
板、ガラス板等の表面にクロム、アルミ等の金属反射膜
を成膜して表面鏡として構成されている。In the lower opening 38, a reflecting mirror (second reflecting mirror) 42 having a horizontally long quadrangular front shape is arranged with the reflecting surface 42a facing the front of the vehicle or slightly obliquely upward. The second reflecting mirror 42 has a convex spherical surface with a constant curvature (for example, a radius of 10).
It is composed of a convex mirror having a spherical surface of about 00 mm).
The second reflecting mirror 42 is configured as a surface mirror by forming a metal reflecting film of chromium, aluminum or the like on the surface of a spherically curved plastic plate, glass plate or the like.
【００１６】フレネル凹レンズ４０と第２の反射鏡４２
との間には、第１の反射鏡２８で反射した車両後方の映
像を入射する位置にプリズム４４が略々水平面に寝かせ
た姿勢で配設されている。プリズム４４は透明プラスチ
ック板あるいは透明ガラス板等で構成され、車両前方側
が薄く車両後方側が厚い台形状の断面形状とされ、第１
の反射鏡２８で反射されて車両前方斜め下方に向けられ
てリヤウインドウ２２を透過した車両後方下部の映像を
リヤウインドウ２２寄りに屈折させて第２の反射鏡４２
に入射する。Fresnel concave lens 40 and second reflecting mirror 42
In between, a prism 44 is disposed at a position where an image of the rear of the vehicle reflected by the first reflecting mirror 28 is incident, in a posture in which it is laid on a substantially horizontal plane. The prism 44 is made of a transparent plastic plate, a transparent glass plate, or the like, and has a trapezoidal cross-sectional shape in which the front side of the vehicle is thin and the rear side of the vehicle is thick.
Image of the lower rear part of the vehicle, which is reflected by the reflecting mirror 28 of the vehicle, is directed obliquely downward of the front of the vehicle, and is transmitted through the rear window 22, is refracted toward the rear window 22 and is reflected by the second reflecting mirror 42.
Incident on.
【００１７】以上の構成の図１の車両用後方視認装置４
６によれば、車両後方直後位置を含む車両後方下部の映
像は、二点鎖線で示すように、第１の反射鏡２８で反射
されて車両前方斜め下方に向けられ、リヤウインドウ２
２を透過して、ケース３２の開口部３４から車室内側装
置３０に入射され、プリズム４４でリヤウインドウ２２
寄りに屈折され、第２の反射鏡４２で反射されて、車両
前方略々水平方向に向けられ、運転者の視点４８の方向
に導かれる。この場合、第１の反射鏡２８は車両後方下
部の映像をプリズム４４に向けて斜め下方に反射すれば
よいので、直接運転者の視点４０に向けて水平方向に反
射する場合に比べて、ミラー面の大きさに比して見える
車両後方の映像範囲が広がり、ミラーの車両前後方向の
長さを抑えて、車両後方への突出量を少なくすることが
でき、リヤスポイラー２４も小型にすることができる。
ちなみに、車両後方の映像を直接運転者の視点に向けて
水平方向に反射するように反射鏡を配置した場合に、図
１と同様の視界範囲を確保するには、図７に示すように
車両前後方向の寸法が大きい反射鏡５０を用いなければ
ならず、車両後方向への突出量が大きくなり、この反射
鏡５０を保持するリヤスポイラーも大型化してしまう。The rear visual recognition device 4 for a vehicle of FIG.
According to 6, the image of the lower part of the rear of the vehicle including the position immediately after the rear of the vehicle is reflected by the first reflecting mirror 28 and directed obliquely downward and forward of the vehicle as shown by the chain double-dashed line.
2 through the opening 32 of the case 32 to enter the device 30 on the vehicle interior side, and the prism 44 causes the rear window 22 to pass through.
The light is refracted toward the side, reflected by the second reflecting mirror 42, directed substantially in the horizontal direction in front of the vehicle, and guided toward the driver's viewpoint 48. In this case, since the first reflecting mirror 28 may reflect the image of the lower rear part of the vehicle obliquely downward toward the prism 44, the first reflecting mirror 28 reflects the image in the horizontal direction directly toward the driver's viewpoint 40. The image range behind the vehicle that can be seen compared to the size of the surface is expanded, the length of the mirror in the vehicle front-rear direction can be suppressed, the amount of projection to the rear of the vehicle can be reduced, and the rear spoiler 24 can also be downsized. it can.
By the way, in order to secure the same visibility range as in FIG. 1 when the reflector is arranged so as to reflect the image of the rear of the vehicle directly toward the driver's viewpoint in the horizontal direction, as shown in FIG. The reflecting mirror 50 having a large dimension in the front-rear direction must be used, the amount of protrusion in the vehicle rearward direction becomes large, and the rear spoiler that holds the reflecting mirror 50 also becomes large.
【００１８】また、第１の反射鏡２８で反射された車両
後方斜め下方の映像をプリズム４４でリヤウインドウ２
２寄りに屈折するので、第２の反射鏡４２をリヤウイン
ドウ２２寄りの位置にしかも比較的立てた姿勢に配置す
ることができ、車室内側装置３０を比較的薄く構成する
ことができる。Also, the image obliquely below and behind the vehicle reflected by the first reflecting mirror 28 is reflected by the prism 44 to the rear window 2.
Since the second reflecting mirror 42 is refracted toward the rear window 22, the second reflecting mirror 42 can be disposed at a position near the rear window 22 and in a relatively upright posture, and the vehicle interior side device 30 can be configured to be relatively thin.
【００１９】また、車両後方水平方向または車両後方や
や斜め下方の映像は、図１に一点鎖線で示すように、フ
レネル凹レンズ４０で上下方向および左右方向に広角で
取り込まれて車両前方略々水平方向に向けられ、運転者
の視点４８の方向に導かれる。As shown by the alternate long and short dash line in FIG. 1, an image of the vehicle rearward horizontal direction or the vehicle rearward slightly obliquely downward direction is taken in by the Fresnel concave lens 40 at a wide angle in the vertical direction and the horizontal direction, and substantially in the horizontal direction in front of the vehicle. And is guided in the direction of the driver's viewpoint 48.
【００２０】図１の車両用後方視認装置４６による視界
範囲を図８に示す。これによれば、第１、第２の反射鏡
２８，４２による視界範囲Ａ１は車両後方直後の約０〜
２ｍの範囲であり、フレネル凹レンズ４０による視界範
囲Ａ２はそれよりも後方の約３〜８ｍの範囲である。な
お、第１の反射鏡２８の曲率半径を小さくすれば、第
１、第２の反射鏡２８，４２による視界範囲Ａ１を広げ
ることができ、例えば約０〜３ｍに広げれば、両視界範
囲Ａ１，Ａ２の間の死角をなくすことができる。FIG. 8 shows the field of view of the vehicle rear visual recognition device 46 of FIG. According to this, the visibility range A1 by the first and second reflecting mirrors 28 and 42 is about 0 immediately after the rear of the vehicle.
The range is 2 m, and the view range A2 by the Fresnel concave lens 40 is a range of about 3 to 8 m behind it. It should be noted that if the radius of curvature of the first reflecting mirror 28 is reduced, the view range A1 by the first and second reflecting mirrors 28 and 42 can be expanded. For example, if it is expanded to about 0 to 3 m, both view ranges A1. , A2 can be eliminated.
【００２１】（発明の実施の形態２）この発明の第２の
実施の形態を図９に示す。この車両用後方視認装置５２
は、前記図１の構成からプリズム４４を省いて部品点数
を削減したものである。プリズム４４を省いた分第２の
反射鏡４２′（凸状の球面を有する凸面鏡）の短手方向
の寸法をやや大き目に構成し、かつやや車両前方寄りの
位置にやや寝かせた状態に配置している。これにより、
図１のものと同じ視界範囲（図８参照）が得られる。(Second Embodiment of the Invention) A second embodiment of the present invention is shown in FIG. This rear view device 52 for vehicle
Is a configuration in which the prism 44 is omitted from the configuration of FIG. 1 to reduce the number of parts. By omitting the prism 44, the second reflecting mirror 42 '(convex mirror having a convex spherical surface) has a slightly larger dimension in the lateral direction, and is arranged in a state of being slightly laid down at a position closer to the front of the vehicle. ing. This allows
The same field of view as in FIG. 1 (see FIG. 8) is obtained.
【００２２】（発明の実施の形態３）この発明の第３の
実施の形態を図１０に示す。この車両用後方視認装置５
２は、前記図１の断面台形状のプリズム４４に代えて、
板状プリズム５６を配置したものである。板状プリズム
５６は図１０中に一部を拡大して示すように、裏面５６
ａが平坦面に形成され、表面５６ｂには長手方向（車両
幅方向）に延びた略々Ｖ字状の溝が短手方向に一定ピッ
チで複数本形成され、長手方向に直角な平面で切断した
断面が上面に鋸歯状の凹凸面を形成している。この鋸歯
状の凹凸面の車両後方向きの面５８は略々垂直面に形成
され、車両前方向きの面６０は斜め上方に向いた傾斜面
に形成されている。(Third Embodiment of the Invention) FIG. 10 shows a third embodiment of the present invention. Rear view device 5 for this vehicle
2, instead of the prism 44 having a trapezoidal cross section in FIG. 1,
The plate-shaped prism 56 is arranged. The plate-shaped prism 56 has a rear surface 56 as shown in a partially enlarged view in FIG.
a is formed as a flat surface, and a plurality of substantially V-shaped grooves extending in the longitudinal direction (vehicle width direction) are formed on the surface 56b at a constant pitch in the lateral direction, and cut at a plane perpendicular to the longitudinal direction. The cross section thus formed forms a saw-tooth-shaped uneven surface on the upper surface. The saw-toothed concave-convex surface 58 facing the rear of the vehicle is formed as a substantially vertical surface, and the surface 60 facing the front of the vehicle is formed as an inclined surface facing diagonally upward.
【００２３】これによれば、第１の反射面２８で反射し
た車両後方下部の映像は、板状プリズム５６の上面５６
ｂの傾斜面６０で略々垂直方向に大きく屈折され、下面
５６ａの平坦面をほぼ直進して第２の反射鏡４２に入射
され、第２の反射鏡４２で運転者の視点の方向に向けて
略々水平に反射される。According to this, the image of the lower rear part of the vehicle reflected by the first reflecting surface 28 is the upper surface 56 of the plate prism 56.
The light is largely refracted in a substantially vertical direction on the inclined surface 60 of b, travels substantially straight on the flat surface of the lower surface 56a, is incident on the second reflecting mirror 42, and is directed by the second reflecting mirror 42 in the direction of the driver's viewpoint. Is reflected almost horizontally.
【００２４】（その他の実施の形態）第２の反射鏡と運
転者の視点との間に他の光学部品を配置することもでき
る。例えば、図１１の車両用後方視認装置６６は、第１
の反射鏡２８と第２の反射鏡４２との間にプリズムを配
置するのに代えて、第２の反射鏡４２の出射方向にプリ
ズム６２を配置したものである。(Other Embodiments) Other optical components may be arranged between the second reflecting mirror and the driver's viewpoint. For example, the vehicle rear visual recognition device 66 of FIG.
Instead of arranging the prism between the reflection mirror 28 and the second reflection mirror 42, the prism 62 is arranged in the emission direction of the second reflection mirror 42.
【００２５】第１の反射鏡は反射面の断面形状が円弧状
のものに限らない。例えば、図１２の第１の反射鏡２
８′の反射面は、リヤスポイラー２４の延在方向に直角
な平面で切断した断面形状を車両前方寄りの部分２８Ａ
は一定の曲率を有する円弧状の凸面に形成し、車両後方
寄りの部分２８Ｂは円弧状の凸面２８Ａと連続面をなし
その曲率半径が円弧状の凸面２８Ａよりも短くかつ車両
後方に行くに従い徐々に曲率半径が短くなる曲率徐変の
凸面に形成している（リヤスポイラー２４の延在方向に
平行でかつ反射鏡２８′の反射面に直角な平面で切断し
た断面形状は一定の曲率を有する円弧状の凸面に形成し
ている。）。これにより、円弧状の凸面２８Ａは距離感
の必要な車両後方直後位置の映像を比較的大きく映し出
し、曲率徐変の凸面２８Ｂは障害物の有無がわかればよ
い車両後方のやや離れた位置の映像を広角に映し出し、
広い視覚範囲が得られる。The first reflecting mirror is not limited to the one whose reflecting surface has a circular cross section. For example, the first reflecting mirror 2 of FIG.
The reflection surface 8'is a portion 28A closer to the front of the vehicle in a cross-sectional shape cut along a plane perpendicular to the extending direction of the rear spoiler 24.
Is formed in an arcuate convex surface having a constant curvature, and the portion 28B toward the rear of the vehicle is continuous with the arcuate convex surface 28A and its radius of curvature is shorter than that of the arcuate convex surface 28A and gradually becomes closer to the rear of the vehicle. Is formed on a convex surface with a gradually changing curvature radius (the cross-sectional shape cut along a plane parallel to the extending direction of the rear spoiler 24 and perpendicular to the reflecting surface of the reflecting mirror 28 'has a constant curvature). It is formed on an arcuate convex surface.) As a result, the arcuate convex surface 28A projects a relatively large image of the position immediately behind the vehicle, which requires a sense of distance, and the convex surface 28B having a gradually changing curvature shows an image at a slightly distant position behind the vehicle where it is possible to know the presence or absence of an obstacle. Is projected in a wide angle,
Wide visual range is obtained.
【００２６】前記各実施の形態では第１、第２の反射鏡
のほかにフレネルレンズを併設したが、第１、第２の反
射鏡の視覚範囲を広く設定して、フレネルレンズを省く
こともできる。前記各実施の形態では、第１、第２の反
射鏡とも凸面鏡としたが、第１の反射鏡を凸面鏡とし、
第２の反射鏡を平面鏡とすることもできる。In each of the above-described embodiments, the Fresnel lens is provided in addition to the first and second reflecting mirrors. However, the visual range of the first and second reflecting mirrors may be set wide to omit the Fresnel lens. it can. In each of the above-mentioned embodiments, both the first and second reflecting mirrors are convex mirrors, but the first reflecting mirror is a convex mirror,
The second reflecting mirror may be a plane mirror.
【００２７】[0027]
【発明の効果】以上説明したように、この発明によれ
ば、車両の外側に配置する反射鏡（第１の反射鏡）の車
両後方への突出量を少くすることができ、リヤスポイラ
ーを小型化することができる。また、リヤウインドウを
通して得られる直接視界を遮らないようにリヤスポイラ
ーをデザインすることができる。また、第１の反射鏡は
車外に配置されるので車両後方直後位置も視界範囲に入
れることができる。また、車室内の反射鏡は１枚（第２
の反射鏡）で済み、しかも比較的高い位置に配置するこ
とができるので、後部座席に乗員がいても容易に視認す
ることができる。また、凹レンズを組み合わせれば、車
両後方の映像を広角に取り込むことができる。As described above, according to the present invention, the amount of projection of the reflecting mirror (first reflecting mirror) arranged outside the vehicle toward the rear of the vehicle can be reduced, and the rear spoiler can be miniaturized. can do. Also, the rear spoiler can be designed so as not to obstruct the direct view obtained through the rear window. Further, since the first reflecting mirror is arranged outside the vehicle, the position immediately behind the vehicle can be included in the field of view. Also, there is only one reflector (second
Since it can be installed at a relatively high position, it can be easily visually recognized even if an occupant is in the back seat. In addition, if a concave lens is combined, the image behind the vehicle can be captured in a wide angle.
【図１】 この発明の第１の実施の形態を示す図で、図
５のＡ−Ａ矢視断面図である。1 is a view showing a first embodiment of the present invention and is a cross-sectional view taken along the line AA of FIG.
【図２】 従来のリヤアンダーミラーを装着した車両を
示す斜視図である。FIG. 2 is a perspective view showing a vehicle equipped with a conventional rear under mirror.
【図３】 従来の他のリヤアンダーミラーを装着した車
両を示す斜視図である。FIG. 3 is a perspective view showing a vehicle equipped with another conventional rear under mirror.
【図４】 従来のさらに別のリヤアンダーミラーを装着
した車両を示す斜視図である。FIG. 4 is a perspective view showing a vehicle equipped with still another conventional rear under mirror.
【図５】 この発明の車両用後方視認装置を装着した車
両を示す斜視図である。FIG. 5 is a perspective view showing a vehicle equipped with the vehicle rear visual recognition device of the present invention.
【図６】 図１のフレネルレンズ４０の正面図および縦
断面図である。6A and 6B are a front view and a vertical sectional view of the Fresnel lens 40 in FIG.
【図７】 従来のリヤアンダーミラーで図１と同様の視
野範囲を確保するためのミラー配置を示す断面図であ
る。FIG. 7 is a cross-sectional view showing a mirror arrangement for ensuring the same visual field range as in FIG. 1 in a conventional rear under mirror.
【図８】 図１の車両用後方視認装置４８による視界範
囲を示す平面図および側面図である。8A and 8B are a plan view and a side view showing a field of view by the vehicle rear visual recognition device 48 of FIG.
【図９】 この発明の第２の実施の形態を示す断面図で
ある。FIG. 9 is a sectional view showing a second embodiment of the present invention.
【図１０】 この発明の第３の実施の形態を示す断面図
である。FIG. 10 is a sectional view showing a third embodiment of the present invention.
【図１１】 この発明のその他の実施の形態を示す断面
図である。FIG. 11 is a sectional view showing another embodiment of the present invention.
【図１２】 この発明のその他の実施の形態を示す断面
図である。FIG. 12 is a sectional view showing another embodiment of the present invention.
２０ 車両 ２２ リヤウインドウ ２４ リヤスポイラー ２６ 車両ボデー ２８，２８′ 第１の反射鏡 ２８ａ，４２ａ 反射面 ４０ フレネル凹レンズ（凹レンズ） ４２，４２′ 第２の反射鏡 ４４，５６ プリズム ４６，５２，５４，６６ 車両用後方視認装置 20 vehicles 22 Rear window 24 Rear spoiler 26 vehicle body 28,28 'First reflecting mirror 28a, 42a Reflective surface 40 Fresnel concave lens (concave lens) 42, 42 'Second reflector 44,56 prism 46,52,54,66 Rear view device for vehicle
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B60R 1/08 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) B60R 1/08
Claims (4)
両幅方向に沿って水平方向に延在した状態で車両後方に
突出して車両ボデーに取り付けられたリヤスポイラー
と、このリヤスポイラーの下面に反射面を下方または車
両前後方向斜め下方に向けて取り付けられて、車両後方
下部の映像をリヤウインドウに向けて車両前方斜め下方
に反射する第１の反射鏡と、前記リヤウインドウの車室
内側に配設されて、前記反射鏡で反射された車両後方下
部の映像を前記リヤウインドウを通して入射して、車両
前方に向けて反射して運転席の方向へ導く第２の反射鏡
とを具備し、 前記第１の反射鏡と前記第２の反射鏡との間の前記リヤ
ウインドウの車室内側にプリズムを配設し、前記第１の
反射鏡で反射されて前記リヤウインドウを透過した車両
後方下部の映像をこのプリズムで前記リヤウインドウ寄
りに屈折させて前記第２の反射鏡に入射してなる 車両用
後方視認装置。1. A rear spoiler mounted on a vehicle body so as to project rearward of the vehicle while extending horizontally in the vehicle width direction at a position above and outside a rear window of the vehicle, and a reflecting surface on a lower surface of the rear spoiler. A first reflecting mirror that is attached downward or obliquely downward in the vehicle front-rear direction and that reflects an image of the lower rear part of the vehicle toward the rear window obliquely downward and forward of the vehicle, and is disposed on the vehicle interior side of the rear window. Te, said the vehicle rear lower portion of the image reflected by the reflector enters through the rear window, and a second reflector directing reflected toward the vehicle front in the direction of the driver's seat, the first Between the second reflecting mirror and the second reflecting mirror
A prism is arranged on the inside of the window of the vehicle, and the first
Vehicles reflected by a reflector and transmitted through the rear window
The image of the lower rear part can be seen with this prism near the rear window.
A rear visual recognition device for a vehicle , which is refracted further and is incident on the second reflecting mirror .
延在方向に直角な平面で切断した反射面の断面形状が湾
曲した凸面に形成されてなる請求項１に記載の車両用後
方視認装置。2. The vehicle rear visual recognition device according to claim 1 , wherein a cross section of a reflecting surface obtained by cutting the first reflecting mirror along a plane perpendicular to the extending direction of the rear spoiler is formed into a curved convex surface. .
形成した表面鏡で構成されてなる請求項１または２に記
載の車両用後方視認装置。3. The vehicle rear visual recognition device according to claim 1, wherein the first and second reflecting mirrors are surface mirrors each having a reflecting surface formed on the surface thereof .
ドウを臨む位置に凹レンズを配設し、車両後方の映像を
前記第１の反射鏡を介さずに直接前記リヤウインドウを
通してこの凹レンズで広角に取り込んで、運転者の視点
の方向に直接導いてなる請求項１〜３のいずれかに記載
の車両用後方視認装置。4. A concave lens is disposed above the second reflecting mirror at a position facing the rear window, and an image of the rear of the vehicle is directly passed through the rear window without passing through the first reflecting mirror. incorporated into a wide angle, a vehicle rear view system according to any one of claims 1 to 3 comprising lead directly toward the driver's viewpoint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24875495A JP3445420B2 (en) | 1995-09-01 | 1995-09-01 | Rear view device for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24875495A JP3445420B2 (en) | 1995-09-01 | 1995-09-01 | Rear view device for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0966772A JPH0966772A (en) | 1997-03-11 |
| JP3445420B2 true JP3445420B2 (en) | 2003-09-08 |
Family
ID=17182885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24875495A Expired - Fee Related JP3445420B2 (en) | 1995-09-01 | 1995-09-01 | Rear view device for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3445420B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180128413A (en) | 2016-03-29 | 2018-12-03 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Resin composition containing supported platinum catalyst, thermosetting organopolysiloxane composition using same, and curing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100748749B1 (en) * | 2001-08-30 | 2007-08-13 | 현대자동차주식회사 | System for controlling inclination angle of vehicle spoiler |
| CN102537832B (en) * | 2010-12-29 | 2014-05-07 | 海洋王照明科技股份有限公司 | Fresnel lens and lamp with same |
-
1995
- 1995-09-01 JP JP24875495A patent/JP3445420B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180128413A (en) | 2016-03-29 | 2018-12-03 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Resin composition containing supported platinum catalyst, thermosetting organopolysiloxane composition using same, and curing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0966772A (en) | 1997-03-11 |
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