JPS5918930Y2 - Vehicle blind spot warning device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that detects obstacles and the like in the left and right blind spots of a large vehicle and warns the driver of the vehicle.

When a large vehicle changes direction, there is a large difference between the turning radius of the inner front wheel and the turning radius of the inner rear wheel, and the turning radius of the inner rear wheel is smaller than the turning radius of the inner front wheel.

Furthermore, when the vehicle curves to the left, the steering wheel is usually located on the right side of the vehicle, so the left side of the vehicle becomes a blind spot, making it difficult to see from the driver's seat.

For this reason, when the steering wheel is turned sharply when the vehicle is making a left turn, people, bicycles, etc. may be caught in the rear wheels of the vehicle, resulting in a serious accident.

Japanese Utility Model Publication No. 53-10020 is aimed at preventing such vehicle accidents.

However, this publication only shows a circuit for operating a side obstacle confirmation device for accident prevention, and does not specifically show the device.

In view of the above, this invention was developed when a driver of a large vehicle turns the steering wheel sharply to the left or right when turning the vehicle left or right, and when a person or obstacle enters the blind spot of the vehicle. The object of the present invention is to provide a blind spot warning device that detects people and obstacles and alerts the driver.

Next, the invention will be explained based on an embodiment shown in the drawings.

In the figure, a front bumper 1 attached to the front of a large vehicle has both ends thereof (only one end is shown in the figure).

) is attached to the back side of the vertical shaft 2.
A pipe 3 is loosely fitted on the outside of the .

This pipe 3 has a notch 4a in the center of one side.
In the case of mounting, the plate 4 is welded to the notch 4a side.

A coiled retractable spring 5 is fitted onto the outside of the pipe 3, and is mounted in the notch 4a of the plate 4.

The storage spring 5 has one end 5a attached to the upper plate 1a of the front bumper 1, and the other end 5b attached to the plate 4.

When mounted, the plate 4 is rotated in the direction of arrow A by a storage spring 5 to a position where it abuts the opening 1b on the back side of the front bumper 1.

For installation, a light emitting device 6 that emits light is attached to the back side of the plate 4, and for installation, the plate 4 is rotated in the opposite direction to the direction of arrow A, and the plate 4 is opened. A wire 7 is attached.

A light switch 8 is attached to the upper surface of the bottom plate 1C near the opening 1b at the end of the front bumper 1, and the electric wire 9 connecting the light switch 8 to the light emitter 6 is connected to the wire 7.
are tied to.

The rear bumper 11 has the same structure as the front bumper 1 except that its direction is opposite to that of the front bumper 1, and the vertical shaft 2, pipe 3, and mounting are the same as the plate 4 and storage spring 5, respectively. A vertical shaft 12, a pipe 13, a plate 14 and a storage spring 15 are attached to the plate 14, and a light receiver 1 is attached to the plate 14.
6 is installed.

The light receiver 16 receives the light emitted from the light emitter 6, and outputs an output when the light emitted from the light emitter 6 is interrupted by an object or the like.

The light switch 18 for this light receiver 16 is located on the rear bumper 1.
The electric wire 19 for the light switch 18 is also attached to the wire 17 for opening the plate 14, near the opening 11b of the rear bumper 11.
are tied to.

The front bumper 1 and the rear bumper 11 each have a light emitting device and a light receiver (both not shown) having the above-mentioned configuration attached to the opposite ends of the plate (not shown).
is rotatably mounted.

FIG. 2 shows a pitman arm 20 that is rotated via a steering main shaft, a gear box, etc. (none of which are shown) when a steering wheel (not shown) is turned in a vehicle steering system.

The left motor switch 22 attached to the frame 21 of the vehicle is turned on when the pitman arm 20 comes into contact with it when the steering wheel is rotated to the left, and the right motor switch 23 is turned on when the pitman arm 20 is turned on when the steering wheel is rotated to the right. 20 comes into contact and turns on.

The motor 24 for opening the plate is installed at the center inside the front bumper 1, and the left and right motor switches 22
．． 23 and a timer 25 (only the left motor switch 22 is shown in FIG. 3).

). Further, the other end of the wire 7 is attached to a pulley (not shown) of the motor 24.

Then, when the left motor switch 22 or the right motor switch 23 is turned on, the motor 24 operates and pulls the wire 7 on the side of the switch that is turned on, and the installation on the side where the wire 7 is pulled stores the plate 4. Rotate about 180 degrees against the biasing force of spring 5.

A motor 26, which is the same as the motor 24, is attached to the inner center of the rear bumper 11. When the left motor switch 22 or the right motor switch 23 is turned on, this motor 26 is activated and the motor 26 is mounted on the plate 14. is rotated so that the light receiver 16 faces the light emitter 6.

FIG. 3 shows a wiring diagram of a pair of light emitters 6 and light receivers 16 located on one side (left side) of the front and rear bumpers of the vehicle.
The left motor switch 22 is connected to a battery 29 via an ignition switch 28.

A buzzer 30 located in the driver's cab is connected to the light receiver 16, and when current flows through the light receiver 16, the buzzer 30 sounds.

Note that 31 and 32 indicate electromagnetic solenoids, and the electromagnetic solenoid 31 is used in place of the motor 24, and the electromagnetic solenoid 32 is used in place of the motor 26.

Next, the operation of this embodiment will be explained.

When a large vehicle is running, turn off the ignition switch 2.
8 is on, and when the driver of the vehicle turns the steering wheel significantly to the left, the pitman arm 20 rotates and comes into contact with the left motor switch 22, causing the switch 2 to rotate.
Turn on 2.

As a result, the timer 25 and motor 24 are activated to pull the wire 7, and the timer 27 and motor 26 are also activated to pull the wire 17.

Therefore, the mounting plate 4 opens against the biasing force of the storage spring 5, and the mounting plate 4 opens against the biasing force of the storage spring 15, so that the light emitter 6 and the light receiver 16 face each other. become.

On the other hand, during installation, when the plates 4 and 14 are opened, the light switches 8 and 18 are turned on, and the light emitter 6 and light receiver 1 are turned on.
6 lights up.

If a person or an obstacle enters the light beam emitted from the light emitter 6, a current flows through the light receiver 16, causing the buzzer 4 to sound.

This allows the driver to know the presence of a person or obstacle in the blind spot of the vehicle and take appropriate measures immediately, thereby preventing accidents from occurring.

Next, when the driver returns the steering wheel, the left motor switch 22 is turned off, and the motors 24 and 26 are turned off by the action of the timers 25 and 27.
each rotate briefly in reverse to loosen wires 7 and 17.

By loosening the wires 7 and 17, the plate 4 is attached by the action of the retraction spring 5, and the plate 14 is attached by the action of the retraction spring 15.
are returned to their starting positions by the action of .

In this way, the installation is completed when the plate 4 returns to the starting position.
During installation, the plate 4 comes into contact with the light switch 8 to turn off the switch 8.

Therefore, the light emitter 6 is stored inside the front bumper 1 and is turned off.

In the same manner, the mounting plate 14 also returns to its original position, the light receiver 16 is stored in the rear bumper 11, and the light receiver 16 is turned off.

Next, when the driver turns the steering wheel significantly to the right, the right motor switch 23 comes into contact with the pitman arm 20 and turns on, causing the light emitting device provided at the right end of the front bumper 1 and the rear bumper 11 to be turned on. The light receiver provided at the right end operates in the same manner as when the left motor switch 22 is turned on.

In addition, the left motor switch 22 and the right motor switch 23
The light is placed in a position that turns on only when the driver turns the steering wheel sharply when making a left or right turn, and does not operate when the vehicle is driving straight or making a gentle turn. The driver does not feel dazzled.

As mentioned above, this invention consists of a drive mechanism that is connected to a power source and operates when the steering wheel of the vehicle is rotated to the left or right by a predetermined angle, and the inside of the left and right ends of the front and rear bumpers. The front and rear bumpers are mounted rotatably on the member, and the front and rear bumpers are mounted on the member, and the front and rear bumpers are mounted on the member, and the front and rear bumpers are mounted on the member. It consists of a pair of light emitters and light receivers, and when the mounting member rotates and protrudes to the sides of the front and rear bumpers, the light emitters and light receivers become opposed to each other, and the light emitters light up. By installing a blind spot warning device that activates an alarm connected to the receiver when an obstacle passes the light emitted from the emitter in front of the receiver, the driver can remove the emitter and receiver from the vehicle. Only when the steering wheel is turned sharply to the left or right to turn left or right, the front and rear bumpers will automatically protrude to the sides, respectively, allowing the driver to check for obstacles. There is no need to perform any special operations for this purpose.

In addition, since the light emitter and light receiver are at the same height as the bumper, they can be easily seen even by short children.

[Brief explanation of drawings]

The figures show one embodiment of this invention. Figure 1 is a perspective view showing the light emitter and light receiver attached to the ends of one side of the front and rear bumpers, and Figure 2 is a perspective view of the pitman arm and the left side. - A perspective view of the main parts showing the right turn switch section, and FIG. 3 is a wiring diagram for the light emitter and light receiver at one end of this device. 1...Front bumper, 4...Mounting plate,
6... Light emitter, 11... Rear bumper,
14...Mounting on board, 16...Receiver,
24.26...Motor, 29...Battery, 30...Buzzer

Claims (1)

[Claims for Utility Model Registration] A blind spot warning device for a vehicle that has a switch that is turned on when the steering wheel is turned to the left or right by a predetermined angle, and when the switch is turned on, it is connected to a power source and is activated. A drive mechanism is rotatably attached to the inside of the left and right ends of the front and rear bumpers, and is rotated by the action of the drive mechanism to move the front and rear bumpers laterally in the direction of rotation of the steering wheel. A light emitter and a light receiver are respectively attached to the front and rear bumper mounting members, and an alarm is connected to the light receiver, and the light emitter and the light receiver are attached to the mounting member. rotates and moves forward.
When the vehicle protrudes to the side of the rear bumper, the light emitter lights up as they face each other, and when an obstacle passes the light emitted from the light emitter in front of the receiver, the alarm connected to the receiver activates. A vehicle blind spot warning device characterized by:゛