JPH0747233Y2 - Wide angle under mirror - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a vehicle, such as a truck or a bus, mainly mounted in a box-type driver's seat for safety confirmation of the front and left sides of the vehicle.

[Conventional technology]

Box-type large vehicles are equipped with an under mirror, side mirror, or side under mirror outside the left corner of the driver's cab, but in the city area, the route buses for the purpose of operating in densely populated areas generally have a narrow field of view. Under mirror,
It only has a side mirror.

[Problems to be solved by the device]

The area that can be seen with the under mirror 1 is in front of the vehicle body, as shown in FIG.
The range that can be seen with the left side mirror 4 up to about 3 m is
Looking rearward from the front left corner of the vehicle body, it is about 25 ° from the side surface of the vehicle body, and a blind spot 12 occurs between the field of view of the under mirror and the field of view of the side mirrors (the vehicle front left corner and the hatched portion in FIG. 6).
Safety confirmation is insufficient when starting or turning left, which is not desirable for accident prevention measures. In addition, in the case of a front-run one-man bus,
Occasionally, passengers rushing in from this direction may be caught in the door or overlooked and may start a business problem.

[Means for Solving the Problems]

A convex mirror 1 with a 1/4 spherical surface laid horizontally to cut off both ends in order to recognize the left corner of the front of the vehicle body and the blind spot 12 shown in FIG.
As an under mirror.

〔Example〕

FIG. 1 is a front view of the basic form of the present invention, and FIG. 2 is a side view of the same. However, when mounting, a distant, unclear, less urgent image is projected on both ends 2 of the 1/4 spherical mirror. This part 2 is used to remove the driver's excessive caution.
The 1/4 spherical convex mirror cut out as shown in FIG. 2 is attached by the stay 3 together with the side mirror 4 as shown in FIGS. Fig. 5 shows this mounting position on the surface 9
The shortest visible point 10 on the ground is shown when viewed from the driver's seat 11 further 2 m away from the driver's seat 11.

[Effect of device]

If this invention is implemented, 2m can be seen from the driver's seat 11 at the shortest visible point 10 on the ground in the direction of the straight line looking at the under mirror (see Fig. 7). On the left side, a wide range of the area near the vehicle body of the curve 14b can be easily visually recognized.

Further, regarding the blind spot of the shaded area 12 shown in FIG. 6, when viewed rearward from the front left corner of the vehicle body, it is approximately 75 ° from the vehicle body side surface, that is, on the line 15a of the side mirror 4 surface, in the vehicle body direction. Since it is possible to visually recognize up to 15b around 60 °, the danger prediction from this direction can be significantly improved.

Also, since the present invention is a convex mirror with a 1/4 spherical surface as the basic shape,
Although the image around the outer periphery is strongly distorted and the image is unclear, it has an important factor in predicting the danger when there is an approaching obstacle, and it is effective in driving safely and with plenty of margin.

In the above description, there is a slight difference in the range of numerical values because the set angle of the mirror differs depending on the vehicle body design, the drive range of the wind wiper, the preference of the driver, and the like.

[Brief description of drawings]

Fig. 1 is a 1/4 spherical mirror front view, Fig. 2 is a 1/4 spherical mirror side view,
Fig. 3 is a mounting view seen from the driver's seat 11, Fig. 4 is a mounting view seen from above the front left corner 8 of the vehicle body, and Fig. 5 is an under-mirror mounted 2 m above the ground and the shortest visible point on the ground. ,
Figure 6 shows the front and left blind spots of a conventional route bus,
FIG. 7 shows the view range of the side mirror when the 1/4 spherical mirror under mirror is attached. 1 …… 1/4 spherical mirror basic type, 2 …… 1/4 spherical mirror both ends,
3 ... Mounting stay, 4 ... Side mirror, 5 ... Image of the front left corner of the vehicle body seen in the under mirror, 6 ... Shadow of the side mirror seen in the under mirror, 7 ... Left side of the vehicle body seen in the side mirror Image, 8 ...... front left corner of vehicle, 9 ...... directly under the under mirror installation point, 10 ...... front left corner of the vehicle, shortest visible point on the ground, 11 ...... driver's seat, 12 ...... blind spot, 13 ...... left side Range seen by the mirror, 14a …… Front limit seen by the under mirror, 14b …… Left side limit seen by the under mirror, 15a …… On the line of the side mirror 4, about 75 ° from the side of the vehicle, 15b …… From 15a around 60 ° in the direction of the body, the limit of the left side seen with the under mirror, 16 ... blind spot by the side mirror 6 reflected in the under mirror, 17 ... range just before the body seen with the conventional under mirror.

Claims (1)

[Scope of utility model registration request] 1. A car body front part, which is mainly mounted on the front left corner of a car body of a box-type automobile, has a 1/4 spherical mirror placed horizontally, and is cut out at a small unclear image portion on both ends, and a blind spot on the side surface of the car body. Wide-angle under mirror