JPS59195446A - Outside viewing device for conveying unit - Google Patents

Abstract

PURPOSE:To eliminate a dead angle outside a conveying unit and improve safety during driving by connecting object lenses and a display section in front of a driver seat with flexible optical fibers. CONSTITUTION:Four object lenses 1 are fitted to a car body 5 at the rear right and the left and the front right and the left symmetrically to the right and left. Pictures picked up by these four object lenses 1 are finally formed on a display 4 through individual flexible optical fibers 2. Thereby, a dead angle during driving can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a method suitable for visually checking parts that are difficult to see directly from the cockpit of a transportation device such as a vehicle, a ship, or an aircraft.
i! The present invention relates to a device, and more particularly to an external viewing device for a transport device using optical equipment.

BACKGROUND OF THE INVENTION Currently, automobiles are equipped with external viewing devices such as interior rearview mirrors and exterior side mirrors, but these devices have many drawbacks due to their design and structure. The biggest drawback is that even if the interior rearview mirror and the exterior side mirror are used in combination, there is a blind spot in the driver's field of vision, for example, at the rear, and in large vehicles, blind spots also occur on the sides. Furthermore, when driving, it is necessary to move the line of sight vertically and horizontally to check what is behind or to the sides. This is a major problem from a safety standpoint.

Another problem with indoor rearview mirrors is that if they are too small, your rear view will be narrowed, and if they are too large, your view of the front will be obstructed. Furthermore, in the event of a collision or sudden stop, the head of the driver or passenger is likely to get 5ζ, which is not only dangerous, but also restricts movement inside the vehicle. Furthermore, during heavy snowfall or rain, the rear window may fog up, obstructing rear visibility.

On the other hand, the problem with external mirrors is that they protrude from the vehicle ceiling or the sides of the vehicle, which not only poses a high possibility of causing harm to drivers and pedestrians, but also causes problems such as contact with roadside trees, etc. also occurs. Additionally, there are safety issues such as the glare caused by the lights of cars behind at night and snow adhering to the mirrors when it snows. In addition, the external side mirrors are removed for ease of viewing (=I position,
The disadvantage is that the shape etc. are naturally limited, the style is standardized, and there is relatively large air resistance.

Many attempts have been made to take into account the shortcomings of these conventional rearview mirrors, especially safety. For example, the housing is attached above the front window of the car body (), and the rear view device consisting of a combination of three plane mirrors (Utility Model Publication No. 51-307)
No. 52), the housing is provided in the above position, and a prism is used in the mirror device to refract the incident light rays in the normal direction to shorten the optical path, thereby making it possible to obtain a constant field of view under certain conditions even with a smaller mirror. There are a back-viewing device (Japanese Patent Publication No. 56-6891) that makes it possible to achieve this goal, and a back-viewing device using a television camera.

However, with the rearview device consisting of three mirrors, if the size of the mirror is small, it is difficult for the driver to always obtain a constant view of the rear due to its structure. takes time to adjust. However, using large chains poses many problems in terms of installation, appearance, etc.

Further, although the above-mentioned disadvantages can be solved with the rearview device made of the prism, it is still impossible to eliminate the blind spot at the rear and lower part of the vehicle body, which is a problem especially when going backwards. Moreover, these do not eliminate the disadvantages of fender mirrors, but only partially solve the problems mentioned above.

Further, in a rear vision device using a television camera, it is difficult to make the camera portion small, and the external protrusion becomes large. The biggest disadvantage of using a television camera is that cameras and the like are made of electronic components, so they are susceptible to vibration and have durability problems, and if the power supply fails, they will not work.

(Objective of the Invention) In view of the problems in the prior art described above, an object of the present invention is to eliminate blind spots outside the transport device during operation, improve safety, allow the external appearance of the transport device to be designed arbitrarily, and reduce air resistance. An object of the present invention is to provide an external viewing device for a transport device that allows

(Structure of the Invention) The external viewing device for a transport device of the present invention has a luck +t! 2. An objective lens is provided at least at one location outside the main body of the device, a flexible optical fiber is connected to the objective lens, the other end of the flexible optical fiber is connected to a display located in front of the cockpit, It is characterized in that the image of the objective lens is formed on the display.

(Explanation of Examples) Hereinafter, the present invention will be explained in detail using the drawings.

(Example 1) Fig. 1 shows an embodiment of the external viewing device of the present invention, where 1 is an objective lens, 2 is a flexible optical fiber made by bundling a large number of optical fiber threads, and 3 is a flexible duplex. and 4 indicate the displays, respectively.

In FIG. 1, an objective lens 1 is installed at at least one location outside the main body of a transport device to which this external viewing device is applied. For the objective lens 1, optical glass, synthetic resin, etc. are used. The image of the outside of the transport device received by the objective lens 1 is optically formed by a display 4 via a flexible optical fiber 2. The flexible optical fiber 2 is protected by a flexible tube 3, and may be provided either inside or outside the main body of the conveying device. The number, length, diameter, etc. of the flexible optical fibers 2 are not particularly limited, and it is sufficient to have a culm that can effectively transmit images outside the transport device to the display 4. The display 4 has a built-in convex lens, and finally forms an image of the outside of the transport device. It is desirable that the display 4 be installed in a difficult-to-see location in front of the cockpit, that is, in a location with good visibility and less danger in the event of a collision or sudden stop. Further, in the present invention, a prism having a known function such as image reversal or optical path length adjustment may be provided in the portion J3 of the objective lens 1 and the portion of the display 4, if desired.

(Example 2) Figures 2 and 3 show an example in which the external viewing device of the present invention is installed in a passenger car. Figure 2 is a schematic side view of the passenger car and Figure 3 is a schematic plan view. be. The objective lenses 1 are mounted symmetrically at four locations on the rear left and right sides of the vehicle body 5, the front left side, and the front right side, and are installed so as to eliminate blind spots at the rear and side surfaces of the vehicle. Images captured by the objective lenses 1 at these four locations pass through each flexible optical fiber 2 and are finally optically formed on a display 4.

(Embodiment 3) Fig. 4 is a schematic plan view showing an embodiment of the external viewing device of the present invention installed in a left-hand drive passenger car. This is intended to eliminate the largest blind spot on the right side and rear right side.In this case, it will be used in conjunction with the J3 door mirror and the interior rearview mirror.

(Embodiment 4) FIG. 5 is a schematic plan view showing an embodiment in which the external viewing device of the present invention is installed in a one-box car, and is intended to eliminate blind spots in front of the vehicle. In this case, it will be used together with a rearview mirror.

(Effect of the invention) The present invention as described above provides the following effects.

(One thing is that it is possible to completely eliminate the blind spot from the driver's seat, and in order to see the desired surroundings of the vehicle in front of you, there is no need to look aside while driving or look behind you when reversing. Contributes to safety.

(2) It is possible to avoid danger in the event of a collision or sudden stop indoors, and to make full use of the room.

(3) Poor visibility during snowfall and rain can be avoided, and the glare effect at night can be prevented by adjusting the display.

(4) External side mirrors do not harm drivers or passersby, and do not come into contact with roadside trees.

(5) The external appearance can be set as desired, and air resistance can be reduced.

(6) Due to its mechanical structure, it has superior durability compared to television cameras and the like.

The present invention, which achieves the above-mentioned effects, can be suitably used in a wide range of areas as an external viewing device that replaces the indoor rearview mirror J3 and side mirrors (either alone or in combination with a rearview mirror, etc.).

Although the external viewing device of the present invention has been applied to a vehicle, particularly a passenger car, it may also be used in place of a side (handle) mirror or a rearview mirror of other vehicles, such as a two-wheeled motor vehicle.

It may also be used to visually check the outside from the inside of an armored vehicle or the like. In addition, vessels other than vehicles, such as tarports, aircraft, such as single-seat or two-seat small aircraft, medium-sized or large-sized aircraft, crane devices, transport devices such as remote-controlled belt conveyors, or underground shelters other than transport devices, etc. It can also be applied to installations of

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an example of the external viewing device of the present invention, FIGS. 2 and 3 are a schematic side view J5 and a schematic plan view, respectively, when the external viewing device of the present invention is installed in a passenger car. The figure is a schematic plan view when the external viewing device of the present invention is installed in a left steering wheel; FIGS. J5 and 5 are schematic plan views when the external viewing device of the present invention is installed in a one-box car. 1: Objective lens, 2: Flexible IL + optical fiber nail (,3
: Flexible tube, 4: Display, 5: Vehicle body. Patent Applicant Tomen Co., Ltd. Agent Patent Attorney Tatsuo Ito Agent Patent Attorney ± 1p East 1lil Mountain

Claims (1)

[Claims] An objective lens is provided at at least one location outside the device main body,
Connecting a flexible optical fiber to the objective lens, connecting the other end of the flexible optical fiber 1 to a display located in front of the cockpit, and forming an image of the objective lens on the display. An external viewing device for a transportation device, which is characterized by: