WO1996035968A1

WO1996035968A1 - The full view external mirror for vehicle

Info

Publication number: WO1996035968A1
Application number: PCT/CN1996/000032
Authority: WO
Inventors: Jinhai Zhang; Guangfeng Liu
Original assignee: Jinhai Zhang; Guangfeng Liu
Priority date: 1995-05-12
Filing date: 1996-05-09
Publication date: 1996-11-14
Also published as: AU5643596A; CN2216482Y

Abstract

The present invention provides a full view external mirror for vehicle. The mirror surface is formed by evenly combining a plurality of the cambers having different radius of curvature into a composite surface. The surface of the mirror is characterized by which the curvature radius in the middle and upper of the mid-column section of said mirror surface are large and decreasing from up to down; the distribution of curvature radius are firstly decreasing and then increasing from said middle and upper of mid-column to outside; the outline of the mirror is designed to a shape having narrow-upper and wide-lower with streamline; and there is provided a reference point for the driver on said mirror surface. The mirror of present invention can provide clear image and wide view, and having advantage of eliminating blind spots in two sides and ahead of the vehicle.

Description

External full mirror for vehicle. FIELD OF THE INVENTION The present invention relates to a mirror device, and more particularly to a vehicle optical observation device. technical background

Existing exterior mirrors for vehicles are roughly divided into the following two types, one is a round convex mirror and the other is a flat mirror. The former has a wide field of view, but the image is severely distorted and cannot be seen far away; the latter can see far and the image is clear and undistorted. The narrow field of view can not see the blind area in front of the car and near the front wheels on the side of the vehicle. This disadvantage brings difficulties and dangers to the driver when changing lanes or turns, and even causes traffic accidents. This disadvantage is particularly serious for large and medium-sized passenger cars. According to statistics, about 20% to 30% of traffic accidents occur in these three blind spots. In order to understand the above problems, people have thought of many ways, such as the Chinese patent CN 9 0 2 0 6 8 9 4. 6 and the Chinese patent CN 9 4 2 0 7 4 8 9. 0 Sight glass, the mirror surface of which is a composite curved surface formed by the connection of a plurality of surfaces with different curvature radii, the radius of curvature from the top to the bottom is getting smaller and smaller, the curvature radius of the upper half is large, and the curvature radius of the lower half is Not only is it getting smaller from bottom to bottom, but it is getting smaller from side to side. This rear-view mirror ^ Γ has the advantages of high image clarity and wide field of view. Due to its asymmetry, it can be divided into left and right mirrors. When used in pairs, the blind areas on both sides of the car can be eliminated, but the blind areas in front of the car are still End elimination. The other is equipped with a round convex mirror and a rearview mirror at the same time. The driver needs to observe different mirrors to monitor the front of the car to the blind area on the side of the car. However, blind spots in front of the car and in the car can't be eliminated in a mirror.

An object of the present invention is to provide a vehicle exterior full-view mirror. The mirror is a mirror, which can obtain a wide field of vision and clear images, while clearing the blind areas in front of and on the side of the car.

Another object of the present invention is to provide a vehicle external full-view mirror capable of displaying the positional relationship between a coming vehicle and a host vehicle based on the vehicle external full-view mirror. Brief description of the invention

The object of the present invention is achieved by providing a mirror surface having the following shape. The mirror surface of the external full-view mirror of the vehicle is a compound curved surface formed by smoothly connecting a plurality of curved surfaces with different curvature radii. The key point is that the upper and middle curvature radii of the middle portion of the mirror surface are large, and from top to bottom The radius of curvature changes gradually from large to small; the middle part moves towards two The curvature radii of the side and the downward portion change from large to small, and from small to large. At the same time, when viewed from the side of the mirror, the curvature radii also change from large to small, and from small to large.

The outer contour line of the mirror surface adopts a streamlined design with a narrow upper and a lower width. The streamlined design is a compound curve formed by connecting a plurality of curved circles with different radii, and the curvature radius from top to bottom gradually changes from large to small. Variety.

In order to make it easier for the driver to judge the positional relationship between the returning car and the own car from the mirror, a number of marking points are provided on the mirror surface of the external full-view mirror of this vehicle. Brief description of the drawings

FIG. 1 is a front view of a first embodiment of an external full-view mirror of a vehicle; FIG.

Figure 2 is a right side view of Figure 1;

Figure 3 is a sectional view taken along line I-I in Figure 1;

4 is a front view of a second embodiment of an external full-view mirror of a vehicle;

FIG. 5 is a front view of a third embodiment of an external full-view mirror of a vehicle. Examples

The first embodiment shown in FIGS. 1 to 3. The mirror surface is smoothly connected by a plurality of curved surfaces with different curvature radii. The curvature radius of the middle portion 3 of the mirror surface is large, and the curvature radius gradually changes from large to small from top to bottom. Schematic diagram of the curvature at the front, 3,. The radius of curvature at. Is greater than 3 ". From a transverse perspective, the change of the radius of curvature of the middle part 3 to the inner side 1 is 3, the part is large, the turning surface 4 is small, and the inner side 1 ' It is large, and the radius of curvature of the middle portion 3 to the outer side 2 also changes, that is, 3, the place is large, the turning surface 7 is small, and the outer side 2 ′ is large, as shown in Figure 3. At the same time, from the side of the mirror, The radius of curvature is 1 'at large, 1 "at small, ² ' at large, 2" at small; 3 "at large, 5 at, small, and 6 'at large, that is, the radius of curvature from top to bottom, from large to small, From small to large, as shown in Figure 2.

The outer contour line of the mirror surface is designed with a streamlined design with narrow upper and lower widths. The composition is a compound curve formed by connecting multiple curved circles with different radii. The curve radius changes from top to bottom from large to small. That is, the outer contour line on the upper side is a section of a curve with a large radius, and the outer contour line on the lower side is a section of a curve with a small radius.

The mirror surface provided by the first embodiment is an asymmetric design. At this time, the mirror is divided into a left mirror and a right mirror. Figure 1 shows the right mirror. Viewed from the front of the mirror, the width of the inner side 1 of the mirror is greater than 铙. The width of the outer side 2 in order to eliminate blind spots in front of the car.

Referring to FIG. 4, the curved surface of the mirror surface from the middle to the two sides according to the second embodiment is an approximately symmetrical design or a completely symmetrical design. At this time, the outer contour of the mirror surface is also approximately symmetrical or completely symmetrical. Mirrors are not divided into left and right mirrors for easy fabrication and installation.

Referring to FIG. 5, which is a front view of the third embodiment, the difference is that a number of signs 8, 9, 10, 1 1, 1 2, 1 3 are set on the mirror surface to indicate up, down, left, right, The reference point of the front and rear position relationship. When the returning driver sees a car or an object in the mirror, he can determine the position of the latter from the vehicle. Industrial applicability

According to the optical reflection principle of the rear mirror of the vehicle, when the rear vehicle is far away from the vehicle, its image appears in the upper mirror surface of the middle part of this all-view mirror, and the image is clear; as the distance between the vehicle and the vehicle is clear Shortened, its image in the mirror moves down. The left and right sides are equipped with a full-view mirror. Due to the aforementioned features of the lower and inner and outer sides, the driver can not only monitor the wide range of the front, back, left, and right sides of the car from the mirror, and at the same time have a panoramic view of the front blind area.

Compared with the existing wide-view rear-view mirror, the vehicle external full-view mirror provided by the invention has the following advantages: while the image remains clear, the field of vision is wider; not only eliminates the blind areas on both sides of the vehicle body, but also eliminates the blind areas in front of the vehicle .

Therefore, the vehicle exterior full-view mirror provided by the present invention can be used as a reflective observation mirror of a prepared vehicle.

Claims

Profit requirements

1. An external full-view mirror for a vehicle, wherein the mirror surface is a compound curved surface smoothly connected by a plurality of curved surfaces with different curvature radii, which is characterized in that the upper and middle curvature radiuses of the middle portion of the mirror surface are large, and from the top The radius of curvature from the bottom to the bottom gradually changes; the radius of curvature of the middle part to the bottom and the bottom part changes from large to small and from small to large; meanwhile, from the side of the mirror, the radius of curvature also changes from From top to bottom, from small to large.

2. The vehicle exterior full-view mirror according to claim 1, characterized in that the outer contour of the mirror surface is a streamlined design with a narrow upper and a lower width, and the streamlined design is a plurality of curved circles with different radii. The connected composite curve is clear, and the radius of the curve gradually changes from large to small from top to bottom.

3. The external full-view mirror of the vehicle according to claim 1, characterized in that the inner and outer sides of the mirror surface are asymmetric, and from the front, the width of the inner and lower curved surfaces is larger than the outer and lower outer surfaces. '恻 Surface width.

4. The vehicle exterior full-view mirror according to claim 1, characterized in that the curved surface of the mirror from the middle to the sides is approximately symmetrical or completely symmetrical.

5. The external full-view mirror of a vehicle according to claim 1, wherein a number of marking points are provided on the mirror surface for the driver to judge the positional relationship between the rear vehicle and the own vehicle.

6. The vehicle exterior full-view mirror according to Forklift claim 4, characterized in that the outer contour of the mirror is approximately symmetrical or completely symmetrical.