FR2597044A2 - Partially curved rear-view mirror - Google Patents

Partially curved rear-view mirror Download PDF

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Publication number
FR2597044A2
FR2597044A2 FR8605174A FR8605174A FR2597044A2 FR 2597044 A2 FR2597044 A2 FR 2597044A2 FR 8605174 A FR8605174 A FR 8605174A FR 8605174 A FR8605174 A FR 8605174A FR 2597044 A2 FR2597044 A2 FR 2597044A2
Authority
FR
France
Prior art keywords
view mirror
curved part
length
radius
curvature
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
FR8605174A
Other languages
French (fr)
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
Priority claimed from FR8515619A external-priority patent/FR2588808A1/en
Application filed by Individual filed Critical Individual
Priority to FR8605174A priority Critical patent/FR2597044A2/en
Publication of FR2597044A2 publication Critical patent/FR2597044A2/en
Pending legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

The present invention relates to a partially curved rear-view mirror. Rear-view mirror, characterised in that the curved part 3 is in the shape of a portion of a cylinder whose vertical central axis 5 is situated in the vertical plane P perpendicular to the vertical plane P1 of the plane surface 2 and passing through the lateral side 2' of the plane surface 2 adjacent to the curved part 3, the value of the radius of curvature R being between 300 and 550 mm, the optimum value of the said radius being 400 mm.

Description

Le brevet principal a pour objet un rétroviseur, comprenant sur sa face avant un miroir en une seule pièce, un encadrement, ainsi qu'un pied de fixation, caractérisé en ce que le miroir est compos d'une partie plane prolongée, le lonq de l'un de ses côtés latéraux, par une partie courbe, dont le rayon de courbure est tel qu'il supprime totalement l'angle mort. The main patent relates to a rear-view mirror, comprising on its front face a one-piece mirror, a frame, as well as a fixing foot, characterized in that the mirror is composed of an extended flat part, the length of one of its lateral sides, by a curved part, whose radius of curvature is such that it completely eliminates the blind spot.

La présente demande de certificat d'addition a pour objet des variantes de réalisation de l'invention. The present application for an addition certificate relates to alternative embodiments of the invention.

Elle a, en effet, pour objet un rétroviseur dont la partie courbe est sous forme d'une portion de cylindre dont l'axe central vertical est situé dans le plan vertical perpendiculaire au plan vertical de la surface plane et passant par le côté latéral de la surface plane adjacent à la partie courbe, la valeur du rayon de courbure étant comprise entre 300 et 550 mm, la valeur optimale étant de 400 mm. It has, in fact, for object a rear-view mirror whose curved part is in the form of a portion of cylinder whose vertical central axis is located in the vertical plane perpendicular to the vertical plane of the flat surface and passing through the lateral side of the flat surface adjacent to the curved part, the value of the radius of curvature being between 300 and 550 mm, the optimal value being 400 mm.

L'invention sera mieux comprise grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence au dessin schématique annexé, dont la figure unique est une vue en plan et en coupe d'un rétroviseur conforme à l'invention. The invention will be better understood thanks to the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawing, the single figure of which is a view in plan and section of a rear view mirror according to the invention.

Selon une caractéristique de l'invention, la partie courbe 3 est sous forme d'une portion de cylindre dont l'axe central vertical 5 est situé dans le plan vertical P perpendiculaire au plan vertical P1 de la surface plane 2 et passant par le côté latéral 2' de la surface plane 2 adjacent à la partie courbe 3, la valeur du rayon de courbure
R étant comprise entre 300 et 550 mm, la valeur optimale étant de 400 mm.According to a characteristic of the invention, the curved part 3 is in the form of a cylinder portion whose vertical central axis 5 is located in the vertical plane P perpendicular to the vertical plane P1 of the planar surface 2 and passing through the side lateral 2 'of the flat surface 2 adjacent to the curved part 3, the value of the radius of curvature
R being between 300 and 550 mm, the optimal value being 400 mm.

De cette manière, lorsque le rétroviseur est un rétroviseur latéral extérieur gauche d'une automobile, fixé de télle manière que le côté latéral le long duquel se trouve la partie courbe 3 soit celui le plus éloigné du véhicule et que la partie courbe 3 soit dirigée en direction de l'avant du véhicule, l'angle de vision dont un côté est adjacent à la partie latérale gauche de l'automobile est compris entre 60O et 65 , au lieu de 10O à 15 pour les rétro viseurs plans existant actuellement. Tout angle mort est, de ce fait, totalement éliminé, le conducteur d'un véhicule doublé pouvant encore voir le véhicule doublant dans la partie courbe 3 du miroir 1 du rétroviseur extérieur alors que le véhicule doublant est déjà largement dans son champ de vision.Lorsque la valeur du rayon de courbure R est inférieure à 300 mm, la courbure de la partie courbe 3 devient trop accentuée et la vision d'un véhicule doublant est trop fortement déformée. Par contre, lorsque la valeur du rayon de courbure R est supérieure à 550 mm, la courbure de la partie courbe 3 devient très faible et ne suffit plus à supprimer totalement l'angle mort. In this way, when the rear view mirror is a left exterior side mirror of an automobile, fixed so that the lateral side along which the curved part 3 is located is that furthest from the vehicle and that the curved part 3 is directed in the direction of the front of the vehicle, the viewing angle, one side of which is adjacent to the left side part of the automobile, is between 60 ° and 65, instead of 10 ° to 15 for the retro planar finders currently existing. Any blind spot is, therefore, completely eliminated, the driver of a lined vehicle can still see the overtaking vehicle in the curved part 3 of the mirror 1 of the exterior mirror while the overtaking vehicle is already largely in his field of vision. When the value of the radius of curvature R is less than 300 mm, the curvature of the curved part 3 becomes too accentuated and the vision of a doubling vehicle is too strongly distorted. On the other hand, when the value of the radius of curvature R is greater than 550 mm, the curvature of the curved part 3 becomes very small and is no longer sufficient to completely eliminate the blind spot.

Ce type de rétroviseur extérieur est bien entendu adaptable aussi bien du côté conducteur du véhicule que du côté passager. Dans ce dernier cas, la partie courbe 3 sera bien entendu toujours située du côté le plus éloigné du véhicule et dirigée en direction de l'avant du véhicule. L'angle de vision dont un côté est adjacent à la partie latérale droite de l'automobile sera, dans ce cas, compris, toujours pour un rayon de courbure R de la partie courbe 3 de 400 mm, entre 30 et 35 , alors qu'il n'est que de 7" pour les rétroviseurs plans actuels. This type of exterior mirror is of course adaptable both on the driver side of the vehicle and on the passenger side. In the latter case, the curved part 3 will of course always be located on the side furthest from the vehicle and directed towards the front of the vehicle. The viewing angle, one side of which is adjacent to the right-hand side of the automobile will, in this case, be understood, always for a radius of curvature R of the curved part 3 of 400 mm, between 30 and 35, while 'it is only 7 "for the current flat mirrors.

Selon une autre caractéristique de l'invention, le rapport entre la longueur L' de la partie courbe 3 et la longueur L de la partie plane 2 est compris entre 0,20 et 0,35, la valeur optimale étant de 0,28, ce qui peut correspondre, dans le cas d'une automobile, à une longueur L de la partie plane 2 d'environ 125 mm et à une longueur L' de la partie courbe 3 d'environ 35 mm. According to another characteristic of the invention, the ratio between the length L ′ of the curved part 3 and the length L of the flat part 2 is between 0.20 and 0.35, the optimal value being 0.28, which may correspond, in the case of an automobile, to a length L of the flat part 2 of approximately 125 mm and to a length L ′ of the curved part 3 of approximately 35 mm.

Bien entendu, si la longueur de la partie plane 2 est plus importante,dans le cas d'un rétroviseur extérieur de camion, par exemple, la longueur L' sera plus importante, mais toujours comprise dans le rapport 0,20k'(0,35.  Of course, if the length of the flat part 2 is greater, in the case of a truck exterior mirror, for example, the length L ′ will be greater, but always included in the ratio 0.20k ′ (0, 35.

L
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté au dessin annexé .Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments, ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de Drotection de l'invention. L
Of course, the invention is not limited to the embodiment described and represented in the appended drawing. Modifications remain possible, in particular from the point of view of the constitution of the various elements, or by substitution of technical equivalents, without going out for as much of the field of Drotection of the invention.

Claims (5)

-REVENDICATIONS- CLAIMS 1. Rétroviseur ,selon la revendication 1 du brevet principal, caractérisé en ce que la partie courbe (3) est sous forme d'une portion de cylindre dont l'axe central vertical (5) est situé dans le plan vertical (P) perpendiculaire au plan vertical (P1) de la surface plane (2) et passant par le côté latéral (2') de la surface plane (2) adjacent à la partie courbe (3), la valeur du rayon de courbure (R) étant comprise entre 300 et 550 min.  1. Rear view mirror, according to claim 1 of the main patent, characterized in that the curved part (3) is in the form of a cylinder portion whose vertical central axis (5) is located in the vertical plane (P) perpendicular to the vertical plane (P1) of the planar surface (2) and passing through the lateral side (2 ') of the planar surface (2) adjacent to the curved part (3), the value of the radius of curvature (R) being included between 300 and 550 min. 2. Rétroviseur selon la revendication 1, caractérisé en ce que la valeur optimale du rayon de courbure (R) est de 400 mm. 2. Mirror according to claim 1, characterized in that the optimum value of the radius of curvature (R) is 400 mm. 3. Rétroviseur selon l'une quelconque des revendications 1 et 2, caractérisé en ce que le rapport entre la longueur (L') de la partie courbe (3) et la longueur (L) de la partie plane (2) est compris entre 0,20 et 0,35. 3. Rear view mirror according to any one of claims 1 and 2, characterized in that the ratio between the length (L ') of the curved part (3) and the length (L) of the flat part (2) is between 0.20 and 0.35. 4. Rétroviseur selon la revendication 3, caractérisé en ce que la valeur optimale du rapport entre les longueurs (L et L') est de 0,28. 4. Rear view mirror according to claim 3, characterized in that the optimal value of the ratio between the lengths (L and L ') is 0.28. 5. Rétroviseur selon la revendication 4, caractérisé en ce que la longueur (L) de la partie plane (2) est d'environ 125 mm et la longueur (L') de la partie courbe (3) d'environ 35 mm.  5. Rear view mirror according to claim 4, characterized in that the length (L) of the flat part (2) is approximately 125 mm and the length (L ') of the curved part (3) of approximately 35 mm.
FR8605174A 1985-10-18 1986-04-09 Partially curved rear-view mirror Pending FR2597044A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8605174A FR2597044A2 (en) 1985-10-18 1986-04-09 Partially curved rear-view mirror

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8515619A FR2588808A1 (en) 1985-10-18 1985-10-18 Rear-view mirror with partially curved mirror
FR8605174A FR2597044A2 (en) 1985-10-18 1986-04-09 Partially curved rear-view mirror

Publications (1)

Publication Number Publication Date
FR2597044A2 true FR2597044A2 (en) 1987-10-16

Family

ID=26224776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8605174A Pending FR2597044A2 (en) 1985-10-18 1986-04-09 Partially curved rear-view mirror

Country Status (1)

Country Link
FR (1) FR2597044A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6592255B1 (en) * 1998-09-23 2003-07-15 Bernard Duroux Temperature indicator for motor vehicle
WO2006006943A2 (en) * 2004-07-15 2006-01-19 Adlen Ben Ftima Mirror for rear-view mirrors with rear view and side view capacity
EP1798107A1 (en) * 2005-12-14 2007-06-20 Nicolae Fenghea Rear-view mirrors with no blind spot

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1643420A (en) * 1925-01-02 1927-09-27 Porter Enos Rear-view mirror for automobiles
DE1947956A1 (en) * 1969-09-23 1971-04-15 Grebe Geb Reller Sybille Von Mirror for reflecting larger object surfaces, e.g. Car rearview mirror
FR2217706A1 (en) * 1972-06-22 1974-09-06 Lesser Otto
CH587138A5 (en) * 1975-10-22 1977-04-29 Von Allmen Hans Peter
US4258979A (en) * 1978-12-08 1981-03-31 Mahin William E Rear view mirror assembly
US4331382A (en) * 1980-03-13 1982-05-25 Pathfinder Auto Lamp Company Wide-angle mirror for automobiles and the like

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1643420A (en) * 1925-01-02 1927-09-27 Porter Enos Rear-view mirror for automobiles
DE1947956A1 (en) * 1969-09-23 1971-04-15 Grebe Geb Reller Sybille Von Mirror for reflecting larger object surfaces, e.g. Car rearview mirror
FR2217706A1 (en) * 1972-06-22 1974-09-06 Lesser Otto
CH587138A5 (en) * 1975-10-22 1977-04-29 Von Allmen Hans Peter
US4258979A (en) * 1978-12-08 1981-03-31 Mahin William E Rear view mirror assembly
US4331382A (en) * 1980-03-13 1982-05-25 Pathfinder Auto Lamp Company Wide-angle mirror for automobiles and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6592255B1 (en) * 1998-09-23 2003-07-15 Bernard Duroux Temperature indicator for motor vehicle
WO2006006943A2 (en) * 2004-07-15 2006-01-19 Adlen Ben Ftima Mirror for rear-view mirrors with rear view and side view capacity
WO2006006943A3 (en) * 2004-07-15 2006-05-04 Ftima Adlen Ben Mirror for rear-view mirrors with rear view and side view capacity
EP1798107A1 (en) * 2005-12-14 2007-06-20 Nicolae Fenghea Rear-view mirrors with no blind spot

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