JP3436436B2 - Vehicle rear view confirmation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle rear confirmation device.

[0002]

2. Description of the Related Art In an automobile (especially, a large vehicle such as a truck or a bus), a CCD camera and a monitor TV are used to display a rear view image of a vehicle body toward a driver's seat. (JP-A-4-36824
No. 1).

[0003]

By the way, in the case of a tractor (towing vehicle) and a trailer (towed vehicle), when the tractor and the trailer are bent at their connecting points by operating the steering wheel, the tractor is bent. Since the blind spot behind the trailer becomes large, there is a problem that the safety behind the trailer cannot be easily confirmed even if the tractor is equipped with a CCD camera.

The present invention aims to solve such problems.

[0005]

In the first invention, the towed
The vehicle is equipped with camera means for taking a rear view including the rear of the vehicle body.
On the other hand, the image is displayed on the towing vehicle while facing the driver's seat.
Attach the monitor to the side mirror of the towing vehicle .

According to a second invention, the size of the first invention is increased.
Attach the monitor means to the mirrored frame and use it outside the frame and inside the frame.
Assemble so that it can move forward and backward with the delivery position .

[0007]

According to the first aspect of the present invention, even if the towing vehicle and the towed vehicle bend at the connecting point, the camera means captures the rear view of the towed vehicle side, so that the monitor means at the driver's seat of the tow vehicle. The rear view of the towed vehicle can be confirmed from the image displayed by.
Moreover, the line of sight from the side mirror can be increased by the monitor means.
The rear view of the towed vehicle easily without moving
It can be recognized.

According to the second invention, when viewed from the side mirror.
A relatively large screen of the monitor means is placed at the adjacent position where the line movement is small.
The surface can be secured. Monitor means is stored in the frame when not in use
Because it is possible, there is an advantage that it does not interfere with the vehicle width
To be

[0009]

According to the first aspect of the present invention, even if the towing vehicle and the towed vehicle bend at the connecting point, the camera means captures the rear view of the towed vehicle side, so that the monitor means at the driver's seat of the tow vehicle. The rear view of the towed vehicle can be confirmed from the image displayed by.

According to the second aspect of the invention, the rear view of the towed vehicle can be easily confirmed by the monitor means without significantly moving the line of sight from the side mirror.

According to the third aspect of the invention, since the camera means can be removed, one camera means can be used for exchanging the towed vehicle.

According to the fourth aspect of the invention, since the camera means and the monitor means operate automatically, the rear view of the towed vehicle can be swiftly confirmed when the vehicle moves backward without being bothered by the operation of these switches.

[0013]

1 to 3 show an example of application to a tractor / trailer, in which CCD cameras 2 for taking a rear view including a rear portion of a vehicle body are provided on both sides of a trailer 1. The CCD camera 2 is at a predetermined position on the trailer 1 and the magic fastener 3
It is detachably attached via a and 3b.

The tractor 4 is provided with a monitor TV 5 for displaying the image of the CCD camera 2 toward the driver's seat. The monitor TV 5 is attached to the side mirror 7 of the cab 6, and forms a mirror surface area of the vehicle body on the liquid crystal screen 5a.

Although not shown, a connecting hose for air piping and a connecting cable for electric wiring are provided between the tractor 4 and the trailer 1. The CCD camera 2 and the cable 12 of the monitor TV 5 are also housed together on the side of the tractor 4 so that they can be extended to the side of the trailer 1 when the vehicle is connected. A magic fastener 3c for detachably holding the CCD camera 2 is provided on the tractor 4 side.

A controller 8 (CPU) controls the CCD camera 2 and the monitor TV 5, a shift position sensor 10 for detecting the shift lever position of the shifter 9 (transmission gear shift operation device) in the cab 6, the CCD camera 2 and A manual switch 11 of the monitor TV 5 is provided.

Based on these input signals, the controller 8 operates the CCD camera 2 and the monitor TV 5 by turning on the manual switch 11 as shown in FIG. 4 (step 1 →).
Step 3). When the reverse position is determined from the detection signal of the shift position sensor 10 when the manual switch 11 is off, the CCD camera 2 and the monitor TV are displayed only during that period.
5 is operated (step 1 to step 4).

With such a configuration, when the vehicle moves backward, the CCD camera 2 and the monitor TV 5 are automatically operated without depending on the manual switch 11 being turned on. Even if the tractor 4 and the trailer 1 are bent at the connection point as shown in FIG.
Since the rear view including the rear part of the vehicle body is photographed on the side, the rear view of the trailer 1 can be confirmed from the driver's seat of the tractor 4 on the liquid crystal screen 5a of the monitor TV 5.

In that case, since the liquid crystal screen 5a of the monitor TV 5 is located in the mirror surface area of the side mirror 7 which reflects the vehicle,
Without moving the line of sight from the side mirror 7,
The rear view of the trailer 1 can be easily confirmed. Trailer 1
Since the CCD camera 2 can be detached from the trailer 1 upon replacement, the attachment to a new trailer 1 (including the magic fastener 3a) becomes possible. In other words, the replacement of the trailer 1 can handle only one CCD camera 2.

Since the CCD camera 2 and the monitor TV 5 are operated by turning on the manual switch 11, the rear view of the trailer 1 can be confirmed by the image on the monitor TV 5 even when the vehicle is not moving backward (during cornering, etc.).

6 and 7 show another embodiment, in which the monitor TV 5 is assembled in a frame 21 (frame) of the side mirror 20 so that it can be stored. The motor TV 5 is slidably supported by the frame 21 and has a pair of upper and lower wires 2 on one side thereof.
2 are respectively connected. The wire 22 has a pinion 22a formed at its terminal portion, and a gear 23 meshing with the pinion 22a is mounted in the frame 21.

A motor 24 for driving the gear 23 is provided. When the motor 24 rotates in the positive direction, the wire 23 is pulled in by the gear 23, and the monitor TV 5 is retracted to the storage position in the frame 21, while it is rotated in the reverse direction. The wire 22 is pushed out at 23, and the monitor TV 5 is advanced to the use position outside the frame 21. The rotation of the motor 24 is controlled by the controller 8 in synchronization with the operations of the monitor TV 5 and the CCD camera (not shown).

[0023]

According to the first aspect of the present invention , the vehicle behind the towed vehicle is
While providing a camera means for photographing the rear view including the part,
Monitor means to display the image on the towing vehicle toward the driver's seat
Since the camera is attached to the side mirror of the towing vehicle, even if the towing vehicle and the towed vehicle bend at the connection point, the camera means captures the rear view of the towed vehicle, so that the driver's seat of the towing vehicle can be monitored.
Move the line of sight from the side mirror by
You can easily see the rear view of the towed vehicle without
Is.

According to the second invention, the frame of the side mirror is
Place the monitoring means between the use position outside the frame and the storage position inside the frame.
Since it is assembled so that it can move forward and backward, the line of sight moves from the side mirror
Set a relatively large screen of the monitor at an adjacent position where
Can be kept. Monitor means can be stored in the frame when not in use
Therefore, there is an advantage that it does not interfere with the vehicle width.
It

According to the second aspect of the invention, since the monitor means is assembled to the side mirror of the towing vehicle, the rear view of the towed vehicle can be easily confirmed by the monitor means without significantly moving the line of sight from the side mirror.

According to the third aspect of the present invention, since the camera means is detachably provided on the towed vehicle, one camera means can be used for exchanging the towed vehicle.

According to the fourth aspect of the invention, since the control means for automatically operating the camera means and the monitor means when the vehicle moves backward is provided, the towed vehicle can be moved backward when the vehicle moves backward without being bothered by these switch operations. You can swiftly check the rear view of.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a side view of the same tractor / trailer.

FIG. 3 is a diagram showing a mounting state of the CCD camera.

FIG. 4 is a flowchart for explaining the control contents of the controller.

FIG. 5 is an explanatory diagram similarly when retreating.

FIG. 6 is a perspective view of a side mirror showing another embodiment.

FIG. 7 is a configuration diagram similarly showing an assembled state of the monitor TV.

[Explanation of symbols]

1 trailer 2 CCD camera 3a-3c Magic fastener 4 tractors 5 monitor TV 7 Side mirror 8 controller 10 Shift position sensor 11 Manual switch

Claims (4)

(57) [Claims] 1. A rear view of a towed vehicle including a rear part of a vehicle body is photographed.
Driving the image on the towing vehicle while installing the camera means to
Side view mirror of tow vehicle with monitor means to display towards the seat
Rear view device for a vehicle, characterized in that assembled to. 2. A monitor means is provided outside the frame for the side mirror frame.
The rear confirmation device according to claim 1, wherein the rear confirmation device is assembled so as to be capable of advancing and retracting between a use position and a storage position in the frame . 3. The rear confirmation device according to claim 1, wherein the camera means is detachably provided on the towed vehicle. 4. The rear confirmation device according to claim 1, further comprising control means for automatically operating the camera means and the monitor means when the vehicle moves backward.