JPS60215446A - Rear view mirror for car - Google Patents

Rear view mirror for car

Info

Publication number
JPS60215446A
JPS60215446A JP5658184A JP5658184A JPS60215446A JP S60215446 A JPS60215446 A JP S60215446A JP 5658184 A JP5658184 A JP 5658184A JP 5658184 A JP5658184 A JP 5658184A JP S60215446 A JPS60215446 A JP S60215446A
Authority
JP
Japan
Prior art keywords
area
curvature
visibility
visibility area
view mirror
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.)
Granted
Application number
JP5658184A
Other languages
Japanese (ja)
Other versions
JPH0420818B2 (en
Inventor
Shinya Miyake
三宅　信也
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13031129&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS60215446(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to JP5658184A priority Critical patent/JPS60215446A/en
Publication of JPS60215446A publication Critical patent/JPS60215446A/en
Publication of JPH0420818B2 publication Critical patent/JPH0420818B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
    • B60R1/081—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors
    • B60R1/082—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors using a single wide field mirror or an association of rigidly connected mirrors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE:To enable visibility in all directions by reducing the radii of curvature of rear view mirror gradually from the rear viewing area toward the lower viewing area thereby eliminating the rear and lower dead angles. CONSTITUTION:The rear viewing area 4 is formed into spherical face of such curvature as having the center on the line passing vertically through the intermediate point M of a line connecting between the points P1, P2 or the cross points between the interface 3 and the inner and outer sides 6 while the jointing area continuous with said area 4 is formed into spherical face of smaller radius of curvature than said area 4 having the center on same line and the lower viewing area 7 continuous with said area 8 is formed into spherical face of smaller radius of curvature than said area 8 having the center on same line where the interfaces 3, 5 between respective area are formed such that the curved faces having different curvature will continue smoothly.

Description

【発明の詳細な説明】 本発明は車輌用のバンクミラーにおいて１体のバックミ
ラー内にて後方および下方死角部分を視認可能ならしめ
る様にした車輌用バンクミラーに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicular bank mirror in which the rear and lower blind spots are made visible within a single rearview mirror.

従来トラック、バス等の大型車輌に装着されている広視
界バンクミラーは運転席から車輌の両側に沿って後方を
安全視認するのに使用されているが、鏡面の曲率が一定
であるため特に前輪部分に対応する下方側面を視認する
ことが出来ず、該部分が死角となって前輪巻き込み事故
の多発を招来する結果となっていた。Wide-view bank mirrors, which are conventionally installed on large vehicles such as trucks and buses, are used from the driver's seat to safely view the rear along both sides of the vehicle, but because the curvature of the mirror surface is constant, it is especially difficult to see the front wheels. The lower side surface corresponding to the part cannot be visually recognized, and the part becomes a blind spot, resulting in frequent accidents involving the front wheel.

そこで下方部分の視認を可能にするためバックミラーの
曲率半径を規定値より小ならしめて視認範囲を広範に設
定せしめることも考えられるが、かかるバンクミラーで
は通常の後方視認時において遠近感が失われて安全走行
に支障を来たす欠点を有していた。Therefore, in order to make it possible to see the lower part, it is conceivable to make the radius of curvature of the rearview mirror smaller than the specified value to widen the visibility range, but with such a bank mirror, the sense of perspective is lost during normal rearward viewing. However, the vehicle had drawbacks that hindered safe driving.

本発明はかかる欠点に鑑み、曲面体より成るバンクミラ
一本体を、上方内辺側に偏在すると共に略半分の面積を
占める後方視認区域と、バックミラ一本体の下方外辺側
に位置する下方視認区域と、両区域を継続せしめる接合
区域とに区割形成せしめ、後方視認区域から下方視認区
域へ至るに従い曲率半径を小ならしめて成る車輌用バン
クミラーを提供して上記欠点を解消せんとしたものにし
て、以下本発明の一実施例を図面に基づいて説明すると
、 ■はトラック、バス等の大型車輌に装着されるバックミ
ラ一本体であり、無機ガラス、アクリル樹脂等の適宜材
質より成り、該バックミラ一本体１は内辺２側の外方斜
め上方位置を中心点Ｏ４として所定の半径ｒｌにて境界
３を設定せしめて上方内辺２側に偏在すると共に、バッ
クミラ一本体１の略半分の面積を占める後方視認区域４
を区割形成せしめ、更に同じ中心点０．を中心として所
定の半径ｒ２にて境界５を設定せしめてバックミラ一本
体１の下方外辺６側に位置する小区域の下方視認区域７
を区割形成せしめ、該下方視認区域７と後方視認区域４
との間を両者の接合区域８と成してバックミラ一本体１
を三つの区域により構成せしめる様に成している次に各
区域の曲面の曲率について説明すると、境界３と内辺２
、外辺６との交点をｐ、、　ｐ２とし、Ｐ、、Ｐ２を結
ぶ線の中間点Ｍを垂直に通過する線ｍ上の点を中心とす
る曲率半径Ｒ１の球面にて後方視認区域４を彎曲形成せ
しめ、続いて該後方視認区域４に継続する接合区域８を
同じ線ｍ上に中心点が位置し後方視認区域４より小なる
曲率半径Ｒ２の球面にて彎曲形成せしめ、更ムこ接合区
域８にｍ続する下方視認区域７も同様に同じ線ｍ上に中
心点が位置し接合区域８より小なる曲率半径Ｒ１の球面
にて彎曲形成せしめる様に成し、各区域の境界３．５の
部分は異なる曲率半径の曲面が円滑に継続する様に形成
せしめている。In view of these drawbacks, the present invention provides a bank mirror body made of a curved body with a rear visibility area unevenly distributed on the upper inner side and occupying approximately half the area, and a lower visibility area located on the lower outer side of the rearview mirror body. The present invention aims to solve the above-mentioned drawbacks by providing a bank mirror for a vehicle, which is divided into a joining area that continues both areas, and the radius of curvature is made smaller from the rear visibility area to the downward visibility area. Hereinafter, one embodiment of the present invention will be described based on the drawings. Reference numeral 2 represents a main body of a rearview mirror to be mounted on large vehicles such as trucks and buses, and is made of an appropriate material such as inorganic glass or acrylic resin. The main body 1 is unevenly distributed on the upper inner side 2 side with a center point O4 set at a diagonally upper position on the outer side of the inner side 2, and a boundary 3 is set at a predetermined radius rl. Rear visibility area 4
, and further divide the same center point 0. A lower visibility area 7 of a small area located on the lower outer edge 6 side of the rearview mirror main body 1 by setting a boundary 5 at a predetermined radius r2 around .
The lower visibility area 7 and the rear visibility area 4 are divided into sections.
A joint area 8 between the two is formed between the rearview mirror body 1 and the rearview mirror body 1.
is made up of three areas. Next, the curvature of the curved surface of each area will be explained.
, the intersection with the outer edge 6 is p,, p2, and the rear visibility area 4 is a spherical surface with a radius of curvature R1 centered on a point on the line m that perpendicularly passes through the midpoint M of the line connecting P, , P2. Then, the joining area 8 that continues to the rear visibility area 4 is formed into a curve with a spherical surface whose center point is located on the same line m and has a radius of curvature R2 smaller than that of the rear visibility area 4. Similarly, the downward visibility area 7 which is connected m to the joining area 8 is formed so that its center point is located on the same line m and is curved by a spherical surface with a radius of curvature R1 smaller than that of the joining area 8, and the boundary 3 of each area The portion of .5 is formed so that curved surfaces with different radii of curvature continue smoothly.

尚図示のバックミラ一本体１は左側装着用を示し、右側
装着用はこれと対称形状に設定せしめる様に成している
。The illustrated rearview mirror main body 1 is designed to be mounted on the left side, and the rearview mirror body 1 shown is designed to be mounted on the right side in a symmetrical shape.

次に曲率半径等の数値の具体例を示すと、バックミラ一
本体１の横幅Ｗが２５０龍、縦長りが３００鶴の場合、
境界３と内辺２および外辺６との交点Ｐ＋、Ｐｚの上辺
９および下辺１０からの寸法をＡ−１００ｍ、Ｂ＝５０
ｍｍと成し、境界３．５の半径をｉ＝６００ｍｍ、ｒｚ
＝６６０　ｖａｔと成し、又各区域の曲率半径を後方視
認区域４は一般の規格値に対応せしめてＲ＋＝６００ｍ
、下方視認区域７の曲率半径をＲ３＝４０Ｏｎ＋に設定
せしめ、両区域に継続する接合区域８の曲率半径をＲｚ
＝５００　ｆｌに設定せしめている。Next, to give a specific example of numerical values such as the radius of curvature, if the width W of the rearview mirror body 1 is 250 dragons and the vertical length is 300 cranes,
Intersection point P+ of boundary 3 with inner side 2 and outer side 6, dimensions from upper side 9 and lower side 10 of Pz are A-100m, B=50
mm, and the radius of boundary 3.5 is i = 600 mm, rz
= 660 vat, and the radius of curvature of each area is made to correspond to the general standard value for rear visibility area 4, and R + = 600 m.
, the radius of curvature of the downward visibility area 7 is set to R3=40On+, and the radius of curvature of the joining area 8 continuing to both areas is set to Rz
= 500 fl.

要するに本発明は、曲面体より成るバックミラ一本体１
を、上方内辺２側に偏在すると共に略半分の面積を占め
る後方視認区域４と、バックミラ一本体１の下方外辺６
側に位置する下方視認区域７と、両区域を継続せしめる
接合区域８とに区割形成せしめ、後方視認区域４から下
方視認区域７へ至るに従い曲率半径を小ならしめる様に
したので、後方視認区域４において通常の遠近感により
車輌の後方を明確に視認せしめることが出来ると共に、
下方視認区域７により従来死角部分とされていた車輌直
下の斜め外方の前輪部分−帯を明確に視認せしめること
が出来、又後方視認区域４と下方視認区域７とは接・合
区域８によって滑らかに継続しているためハックミラ一
本体１に写し出される物体が急に歪むことなく自然に近
い状態で運転者に認識せしめることが出来、よってあら
ゆる方向の視認が一体のハックミラ一本体１により可能
となるため前輪による巻き込み事故等の防止に大いに貢
献出来ると共に、車輌走行時の安全性を大幅に向上せし
めることが出来る等その実用的効果甚だ大なるものであ
る。In short, the present invention provides a rearview mirror body 1 made of a curved surface.
, a rear visibility area 4 which is unevenly distributed on the upper inner side 2 side and occupies approximately half the area, and a lower outer side 6 of the rearview mirror main body 1.
It is divided into a downward visibility area 7 located on the side and a joining area 8 that continues both areas, and the radius of curvature is made smaller as it goes from the rearward visibility area 4 to the downward visibility area 7, so that rearward visibility is improved. In Area 4, the rear of the vehicle can be clearly seen with normal perspective, and
The downward visibility area 7 makes it possible to clearly see the diagonally outward front wheel band immediately below the vehicle, which was conventionally considered a blind spot, and the rear visibility area 4 and the downward visibility area 7 are separated by the junction area 8. Because it continues smoothly, the object reflected on the Hack Mirror main body 1 can be recognized by the driver in a state close to natural without being suddenly distorted, and therefore visibility in all directions is possible with the integrated Hack Mirror main body 1. Therefore, it can greatly contribute to the prevention of accidents caused by the front wheels, and the practical effects are enormous, such as being able to greatly improve safety when the vehicle is running.

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

図は本発明の一実施例を示すものにして、第１図は本発
明に係る車輌用バックミラーの正面図、第２図は第１図
のＸ−Ｘ断面の端面図である。 １バツクミラ一本体　２内辺　４後方視認区域６外辺　
７下方視認区域　８接合区域 以上 出願人　本　多　利　雄 〃　三　宅　信　也 代理人　弁理士　西　山　開　−The drawings show one embodiment of the present invention, and FIG. 1 is a front view of a rearview mirror for a vehicle according to the present invention, and FIG. 2 is an end view taken along the line XX in FIG. 1. 1 Back mirror 1 body 2 inner side 4 rear visibility area 6 outer side
7 downward visibility area Applicants with 8 or more junction areas Takashi Hontari Shinya Miyake Agent Patent attorney Kai Nishiyama −

Claims (1)

【特許請求の範囲】[Claims] 曲面体より成るバックミラ一本体を、上方内辺側に偏在
すると共に略半分の面積を占める後方視認区域と、バッ
クミラ一本体の下方外辺側に位置する下方視認区域と、
両区域を継続せしめる接合区域とに区割形成せしめ、後
方視認区域から下方視認区域へ至るに従い曲率半径を小
ならしめる様にしたことを特徴とする車輌用バンクミラ
ー。A rear view mirror body made of a curved body has a rear visibility area that is unevenly distributed on the upper inner side and occupies approximately half the area, and a lower visibility area that is located on the lower outer side of the rear view mirror body.
A bank mirror for a vehicle, characterized in that it is divided into a joining area that continues both areas, and the radius of curvature becomes smaller from the rear visibility area to the downward visibility area.
JP5658184A 1984-03-23 1984-03-23 Rear view mirror for car Granted JPS60215446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5658184A JPS60215446A (en) 1984-03-23 1984-03-23 Rear view mirror for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5658184A JPS60215446A (en) 1984-03-23 1984-03-23 Rear view mirror for car

Publications (2)

Publication Number Publication Date
JPS60215446A true JPS60215446A (en) 1985-10-28
JPH0420818B2 JPH0420818B2 (en) 1992-04-07

Family

ID=13031129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5658184A Granted JPS60215446A (en) 1984-03-23 1984-03-23 Rear view mirror for car

Country Status (1)

Country Link
JP (1) JPS60215446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3004719U (en) * 1994-05-27 1994-11-22 株式会社ビイエルテイ Wide angle outside mirror
CN102963303A (en) * 2012-12-12 2013-03-13 四川大学 Rearview mirrors on left side and right side of car

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54120950U (en) * 1978-02-13 1979-08-24
JPS54153448A (en) * 1978-05-20 1979-12-03 Akio Tanaka Back mirror for automobile that have not dead angle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54120950U (en) * 1978-02-13 1979-08-24
JPS54153448A (en) * 1978-05-20 1979-12-03 Akio Tanaka Back mirror for automobile that have not dead angle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3004719U (en) * 1994-05-27 1994-11-22 株式会社ビイエルテイ Wide angle outside mirror
CN102963303A (en) * 2012-12-12 2013-03-13 四川大学 Rearview mirrors on left side and right side of car

Also Published As

Publication number Publication date
JPH0420818B2 (en) 1992-04-07

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