JPH035125Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a door contact prevention device for ensuring safety when opening an automobile door.

When opening the door to get in or out of a passenger car or truck, make sure that there are no other objects within the rotation range of the door.
In other words, if you do not open the door after confirming that there are no barriers, standing walls, pillars, the bodies of other adjacent vehicles, or traffic entering, there is a risk that the door may hit these objects and cause unexpected danger. The only way to confirm this danger was to rely on the attentiveness of the person operating the door.

However, according to this confirmation method, if the operator is thinking or in a hurry, he or she may be careless and fail to notice the presence of the object, resulting in unexpected damage and accidents. There was the problem of inviting

Therefore, the present invention provides a door contact prevention device that can mechanically detect an obstacle within the rotation range of the door and automatically prevent the door from opening when the obstacle is detected. It is an object.

In order to achieve this purpose, the configuration of the present invention includes a proximity switch installed near the swinging end of the door that swings open and close, and an arm that is linked to the opening and closing movement of the door, the base end of the arm being attached to the door. A driven arm is attached to a hinge and whose free end moves forward and backward inward of the vehicle body when the arm slides, and the driven arm slides in the door opening direction based on a sensing signal from the proximity switch. It adopts a structure in which a solenoid actuator is formed to lock the movement.

Hereinafter, the configuration of the present invention will be specifically described based on an embodiment shown in FIGS. 1 to 3.

A revolving door 2 installed on the right side of the vehicle body 1 is held by a hinge 3 fixed to the front end of the door opening of the vehicle body 1, and near the swinging end, that is, the rear end of the door 2, there is, for example, a product name. OMRON.E2K−C25MEI
etc., ultrasonic type or capacitance type proximity switch 4
The proximity switch 4 has a sensing pattern centered in a direction substantially perpendicular to the door 2.

Furthermore, the base end of a rod-shaped driven arm 5 is pivotally attached to the inner side of the door 2 near the hinge 3, and a rack 5a is attached to one side of the driven arm 5 in the longitudinal direction.
is molded.

However, the lever driven arm 5 extends toward the center line of the vehicle body 1, and the middle of the arm is guided by a guide groove of a movable plate 6, which will be described later. The arm 5 slides in conjunction with the opening/closing motion and swings around the base end of the arm, so that the moving end of the arm 5 moves forward and backward inward of the vehicle body 1.

On the other hand, a central shaft 6a of a movable plate 6 serving as a rotatable, shiyamoji-shaped driven arm guide member is erected on a stationary part of the vehicle body 1 below the middle of the driven arm 5. A guide groove 6b for guiding the middle of the driven arm 5 is recessed on the diameter of the movable plate 6, and a solenoid actuator 7 is installed on the upper surface of the movable plate 6, and a solenoid actuator 7 is installed on the upper surface of the movable plate 6. The child 7 is formed by an electromagnetic solenoid 8 and an operating protrusion 9 that is inserted into the inner hole of the solenoid 8 and slides in a stroke.

In addition, a support shaft 10 and a pin 11 are erected on the upper surface of the movable plate 6, and the support shaft 10 has a base of a claw plate 12 as an engaging member whose tip fits into the rack 5a of the driven arm 5. is pivotally mounted, and the pawl plate 12 is biased to rotate clockwise in the drawing by the elasticity of a tension spring 13 applied between the pawl plate 12 and the pin 11.

Therefore, the solenoid actuator 7 shown in FIG.
In the non-operating state, that is, the state in which the actuating protrusion 9 is retracted, the claw plate 12 is tilted down due to its elasticity, so the driven arm 5 can slide in any direction. In the operating state of the solenoid actuator 7 shown in Fig. 2b, that is, in the state in which the actuating protrusion 9 is protruding, the pawl plate 12 is pushed up against its habit, and as a result, the pawl plate 12 is fitted into the rack 5a. The driven arm 5 is capable of sliding in the door closing direction on the left side of the figure, but is blocked by the claw plate 12 and locked from sliding in the door opening direction on the right side of the figure.

Next, the electromagnetic solenoid 8 of the solenoid actuator 7
An electric circuit shown in FIG. 3 is wired between the proximity switch 4 and the proximity switch 4, so that the proximity switch 4 senses the proximity of an obstacle and outputs its output circuit 1.
When a signal current flows through solenoid 4, power supply current flows through solenoid 8 through relay 15, and as a result,
The solenoid actuator 7 is actuated and the actuating protrusion 9 protrudes.

Since the contact prevention device of the embodiment is configured in this way, in a normal state where the side of the door 2 is clear, the detection signal of the proximity switch 4 is not output, so the solenoid actuator 7 is in the inactive state. In regards to
It is possible to open and close the door 2 freely,
Furthermore, when the door 2 is opened without noticing an obstacle, the sensing output of the proximity switch 4 is output when the door 2 approaches the obstacle, so the opening movement of the door 2 is stopped at that moment. This prevents the door 2 from colliding.

After the door 2 is locked, the door 2 can be freely closed and operated, thereby allowing the obstacle to be easily removed or the vehicle to be safely moved away from the obstacle. can.

As described above, according to the door contact prevention device according to the present invention, a proximity switch is installed near the swinging end of the door, and a movement in the door opening direction is installed in the middle of the driven arm that is linked to the opening and closing of the door. A solenoid actuator that locks the door is provided, and the actuator is activated based on an obstacle detection signal, so if the door is opened by mistake without noticing the obstacle, the door will not become obstructed. The door automatically locks immediately before contact with an object, which prevents the door from contacting the object and prevents the door from closing unless the obstacle is removed from the vicinity of the door or the vehicle is moved away from the obstacle. Since the door cannot be opened, it has the effect of ensuring the safety of the door.

[Brief explanation of the drawing]

Fig. 1a is a schematic plan view of a door contact prevention device showing an embodiment of the present invention, and Fig. 1b is a schematic plan view of a door contact prevention device showing an embodiment of the present invention.
Fig. 2a is an enlarged view of the main part of Fig. 1a,
FIG. 2b is an operational diagram of FIG. 2a, and FIG. 3 is an electrical circuit diagram of the same embodiment. 1...Vehicle body, 2...Door, 3...Hinge, 4...
... Proximity switch, 5... Followed arm, 7... Solenoid actuator.

Claims (1)

[Claim for Utility Model Registration] A proximity switch installed near the swinging end of a door that swings open and close, and a follower arm with a rack that slides in conjunction with the opening and closing operations of the door, which is mounted near the hinge of the door. a driven arm guide member provided on the vehicle body side that guides the sliding movement of the driven arm; and a driven arm guide member provided on the driven arm guide member that is freely engageable and detachable from the rack of the driven arm; an engaging member that is biased by a spring in the direction of disengagement and allows the driven arm to slide only in the door closing direction when engaged with the rack; and an engaging member that is provided on the driven arm guide member and that operates the proximity switch. an electromagnetic solenoid that causes the engaging member to engage with the rack against the elasticity of the spring to fix the driven arm to the driven arm guide member when the engaged member engages with the rack;