JP2001071786A - Vehicular rear safety device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety device that stops a vehicle when sensing a danger during vehicle back movement producing a dead angle. SOLUTION: A vehicle 1 has at its rear a movable bumper 3 projectable by an electric motor 7 as soon as the reverse gear is engaged. The movable bumper 3 can stop the engine by breaking the engine electric circuit with the use of means using reaction to bumping against an obstruction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear safety device for suddenly stopping an engine when an obstacle comes into contact with a large vehicle such as a truck in a blind spot.

[0002]

2. Description of the Related Art At present, in the automobile society, at present, each automobile manufacturer has been focusing on the development of safety functions rather than the running performance of automobiles. One example is the use of seat belts and airbags. In addition, since a rear view of a large vehicle is blocked by a carrier such as a container, a system for mounting a television camera and confirming an obstacle from a driver's seat has been introduced.

[0003]

However, a television camera cannot be mounted on a large vehicle other than a bus or a freight car, for example, a dump truck or a truck. The area below the bed is completely blind spot.

[0004] In addition, even in the case of a general privately-owned vehicle, there is a blind spot behind the bumper, and for example, children with short statures such as kindergarten children cannot be recognized by the rearview mirror, and there are many accidents that cause collisions.

Accordingly, an object of the present invention is to provide a safety device that senses danger and stops the vehicle before coming into contact with the vehicle body when the vehicle moves backward.

[0006]

The above object of the present invention can be achieved by an apparatus having the following configuration. That is, the gist of the invention is to provide a movable bumper at the rear of the vehicle, which is inserted into the back gear and protruded by the electric motor at the same time, and the movable bumper cuts off the engine electric circuit by means utilizing recoil at the time of collision with an obstacle to start the engine. A rear safety device for a vehicle, wherein the safety device is a mechanism for stopping the vehicle. Further, the movable bumper has a mechanism for locking the tire by means utilizing recoil at the time of collision with an obstacle, thereby preventing runaway of the vehicle. When the engine is stopped, it is desirable to install a warning buzzer or the like for notifying the driver of danger.

[0007]

Embodiments of the present invention will be described below.
This will be described in detail with reference to the drawings showing the embodiment. As shown in FIG. 1 and FIG. 2, a movable bumper 3 is provided below a rear bumper 2 of a vehicle body 1 so as to be able to protrude rearward.

The movable bumper 3 includes a rear fender 4
The movable bumper receiving portions 5, 5, 5 in the shape of a square pipe are housed therein, and the arm portions 6, 6, 6 connected to the movable damper 3 in the movable bumper receiving portions 5, 5, 5 are slid forward and backward. It is freely included.

An electric motor 7 such as an electric antenna is provided in the movable bumper receiving portion 5 located at the center.
The base of the telescopic arm 8, which is telescopic, is fixed to the base end of the movable bumper receiving part 5, and its tip is connected to the movable bumper 3 from within the arm part 6, so that the movable damper 3 can be taken in and out by driving the electric motor 7. It is a mechanism that can be freely performed.

Further, an extended spring 9 is externally fitted to the telescopic arm 8 so that a biasing force for constantly maintaining the movable bumper 3 at a fixed position is applied.

The left and right movable bumper receiving portions 5 and 5 are connected to the movable damper receiving portion 5 by a thumb screw 12 through an elongated hole 11 opened in a rear member 10 in the rear fender 4. It can be moved in the same direction as the arm 6.

A limit switch 13 is provided on the rear member 10 near the rear of the movable damper receiving portion 5,
Further, a master cylinder 14 is disposed behind the master cylinder.
At the rear end of the movable damper receiver 5, a projection 15 for pushing the master cylinder 14 is provided.

A spring-type bearing 16 is provided in the middle of the arm portion 6. When the movable bumper 3 projects to a fixed position, the spring-type bearing 16 is disengaged from the damper receiving portion 5 and protrudes by the urging force of the spring. When the damper 3 attempts to move in the direction of arrow A in the figure due to a collision or the like, the spring-type bearing 16 is moored at the open end of the movable damper receiving portion 5 and moves together with the movable damper receiving portion 5. It is a mechanism.

Next, as shown in FIG.
3 is provided with a relay switch 19 between the battery 17 and the ignition coil 18, and the relay switch 19 and the limit switch 13 are connected. Therefore, the limit switch 13 is moved by the contact of the movable damper receiving portion 5.
Is turned on, the current flowing to the ignition coil 18 is cut off, and the engine 20 is stopped.

The master cylinder 14 is connected to a brake pipe 19, the limit switch 13 is turned on by the collision of the movable bumper 3, the engine is stopped, and the master cylinder 14 is further pushed to stop the vehicle by the foot brake. This is a mechanism to completely lock the wheel.

In the present invention having the above structure, as shown in FIG. 4, when the vehicle is put into the reverse gear from the driver's seat, the power of the electric motor 7 is turned on and the telescopic arm 8 is extended to move the movable bumper 3 by about 15 cm. Protrude.

Next, when a person comes into contact with the movable bumper 3 during the backward movement of the vehicle, for example, the movable bumper 3 and the movable bumper receiving portion 5 are integrated as shown in FIG. Move in the direction of arrow A in the figure and move to limit switch 1.
3 is turned on, the engine is stopped, and the driver is notified of danger by an alarm buzzer or the like.

Further, as shown in FIG. 6, when the movable bumper 3 strongly collides with an obstacle, the movable bumper 3 and the movable bumper receiving portion 5 are integrated to form the master cylinder 1
Press 4 to lock the four wheels completely.

When the backward gear is released after the rearward movement of the vehicle is completed, the power of the electric motor 7 is turned on, the telescopic arm 8 is contracted, and the movable bumper 3 is stored.

[0020]

As described above, according to the present invention, when the movable bumper comes into contact with a child, for example, by projecting the movable bumper to a truck or a private vehicle in which the rear of the rear of the bumper cannot be confirmed by the rearview mirror. This has the effect of preventing the accident by stopping the engine suddenly due to the reaction. When the movable bumper collides strongly with an obstacle due to a sudden start or the like, the tire is locked together with the stop of the engine to prevent the vehicle from running out of control.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a safety device of the present invention.

FIG. 2 is an explanatory side view of the safety device of the present invention.

FIG. 3 is an explanatory diagram of a circuit system of the present invention.

FIG. 4 is an explanatory diagram showing an initial operation of the movable bumper of the present invention.

FIG. 5 is an explanatory diagram showing an operation state of a limit switch by the movable damper of the present invention.

FIG. 6 is an explanatory view showing an operation state of a master cylinder by the movable damper of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle main body 2 Rear bumper 3 Movable bumper 5 Movable bumper receiving part 6 Arm part 7 Electric motor 8 Telescopic arm 13 Limit switch 14 Master cylinder

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Claims (2)

[Claims] A movable bumper is provided at the rear portion of a vehicle and is protruded by an electric motor at the same time as being put into a reverse gear. The movable bumper cuts off an engine electric circuit by means utilizing recoil at the time of collision with an obstacle. A rear safety device for a vehicle, comprising a mechanism for stopping the vehicle. 2. The rear safety device for a vehicle according to claim 1, wherein the movable bumper has a mechanism for locking a tire by means utilizing recoil at the time of collision with an obstacle.