JPH0646734Y2 - Vehicle door half-open lock device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a door half-open lock device for an automobile, which is capable of automatically or manually locking the door in its half-open state.

[Problems to be solved by conventional technology and device]

Conventionally known is a door half-open lock device that prevents a contact accident by measuring the distance of the succeeding vehicle with the delay time of the ultrasonic reflected wave when the door of the car is opened or by providing a distance measuring device that also uses the Doppler effect. Is. However, when there is a fixed object such as a curb on the side of the door when getting off, there is still a problem of hitting the door, and when the luggage is put in and out in a narrow space, the door should be opened at an appropriate half-open position. Sometimes you want to lock with.

Therefore, an object of the present invention is to provide a door half-open lock device for an automobile, which automatically detects at least an obstacle to the side of the door to lock the door, and can lock the door to any half-open position even by manual operation. And

[Means for solving problems]

In order to achieve this object, the present invention provides a lock mechanism 2 for locking a door 1 in a half-open position as shown in FIG.
And a lock activator 3 for activating this lock mechanism, and ultrasonic transmitters / receivers 4a, 4b for transmitting / receiving ultrasonic waves in at least the lateral range of the door, and when the door is opened, at least a predetermined distance in the lateral range. When the ultrasonic reflector inside is detected, the lock driving unit 3 sends a door automatic lock signal for activating the lock driving unit.
And an ultrasonic distance measuring unit 4 to be supplied to the lock driving unit 3 and a manual door lock signal for activating the lock driving unit at an arbitrary half-open position of the door in place of the automatic door locking signal by manual operation to the lock driving unit 3. It consisted of 5 and 5.

The ultrasonic wave transmitters / receivers 4a and 4b can search not only in the lateral area of the door but also in the rear area as in the conventional case.

[Action]

When the door 1 is opened, the ultrasonic transmitter 4a emits ultrasonic waves to the side of the door 1, and if an ultrasonic reflector is present, the ultrasonic receiver 4b receives the reflected wave. As is well known, the ultrasonic distance measuring unit 4 measures the time between the transmission time and the reflected wave reception time, and if the distance is within a predetermined distance, sends an automatic door lock signal to the lock drive unit 3. As a result, the lock drive unit 3 operates the lock mechanism 2 to lock the door 1 in the half-open position at the time of receiving the reflected wave.

When it is desired to lock the door 1 at an arbitrary half-opened position, the manual lock control unit 5 can be operated to provide a door manual lock signal to the lock drive unit 3 instead, and the door manual lock can be performed at the arbitrary half-opened position of the door 1. When the signal is generated, the lock drive unit 3 operates the lock mechanism 2.

[Example of device]

In FIG. 2, 10 is attached to the body to form a locking mechanism together with the pawl 11 and has a multi-stage tooth 10 on its side surface.
It is an arm equipped with a. One end of the claw 11 is pivotally attached to the door inner panel 9a by a pin 11a, and the other end of the claw 11 meshes with the tooth 10a. Reference numeral 12 is a solenoid that is attached to the drive unit 13 to form a lock drive unit, and the tip of the lock 12a is slidably pinned to the long groove of the claw 11. Reference numeral 14 denotes an ultrasonic distance measuring unit, which causes an ultrasonic wave transmitter 15 mounted on the side surface of the door outer panel 9b to transmit an ultrasonic pulse, and similarly receives a signal from an ultrasonic wave receiver 15a mounted on the side surface of the door. The distance measurement is performed based on the time interval, and if the distance is within the predetermined distance, the door automatic lock signal for activating the drive unit 13 is transmitted. The ultrasonic distance measuring unit is started by operating the door inner handle 21. On the rear surface of the door 9, an ultrasonic transmitter 16 and an ultrasonic receiver 16a are similarly attached in the vertical direction, and are connected in parallel with the ultrasonic transmitters 15 and 15a described above. Reference numeral 18 denotes a manual lock control circuit, which constitutes a manual lock control section by cooperating with the switch 17 and the switch circuit 18a attached to the armrest 20. This control circuit switches the switch circuit 18a while the switch 17 is being pushed when the door is opened,
At the moment when the hand is released, a manual lock signal is sent to the drive unit 13 to activate it, and then the switch circuit 18a is restored. A lock release switch 19 is also attached to the armrest 20, and its operation causes the drive unit 13 to release the lock state.

A lever 25 for forcibly releasing the lock is slidably attached to the side surface of the door inner panel 9a, one end of which is an arm.
It is pinned to 10, and the other end can be locked to the switch / locking portion 25a. When the lever 25 is pulled by hand and locked to the switch / locking part 25a, a switch signal is emitted,
The automatic or manual lock signal transmission from the drive unit 13 is disabled.

The operation of the door half-open lock device configured as described above is as follows.

When the door inner handle 21 is operated to open the door 19 when the door is opened, the ultrasonic transmitters 15 and 16 intermittently transmit ultrasonic waves to the side and rear of the door. When the ultrasonic receiver 16a receives the reflected wave of the following vehicle and the ultrasonic distance measuring unit 14 determines that it is within the predetermined distance, an automatic lock signal is sent to the driving unit 13 through the switch circuit 18a. As a result, the solenoid 12 is driven, and the lock 12a pushes the claw 11 to mesh with the tooth 10a corresponding to the half-open position. As a result, the door 9 is locked, and after the dangerous state is over, the switch 19 is operated to release the locked state. Similarly, if there is a person or obstacle within a predetermined area on the side of the door, the reflected wave is reflected by the ultrasonic receiver.
15a receives and locks the door.

When you want to lock the door in the half-opened state when loading or unloading luggage, in strong wind, when parking on a slope, etc., switch
When you press 17 and release it at the desired position, the door is locked at that moment.

When it is desired not to operate such a door lock device or when the door lock device fails, the lever 25 is pulled and locked to the switch / locking portion 25a. In addition, even if the automatic lock signal is issued, if you want to open and lock the door 9 to the safe position, temporarily release the automatic lock with the switch 19 and manually or with the switch 17. If it is within the range, it will be locked automatically.

In the above-described embodiment, the ultrasonic transmitters / receivers 16 and 16a may be omitted and only the side of the door may be monitored, or one ultrasonic transmitter / receiver may be provided to provide wider directivity and the side and rear portions. The ultrasonic waves may be transmitted and received within the range. As the lock mechanism, a structure other than the claw engagement type is also conceivable. The manual lock control unit may have various configurations such as manual / automatic switching and a separate switch for manual lock command.

[Effect of device]

As described above, according to the present invention, it is possible to detect obstacles on the side of the door, and thus it is possible to automatically prevent a collision with a curb, a person or the like on the side of the door. Also, by being able to manually lock, it becomes possible to lock the door in any half-open position at various times, for example, it is possible to prevent the door from being blown by the wind and causing a danger to infants, etc. There is no need to maintain the door open state by hand even when getting off the vehicle on a sloping ground or when loading or unloading luggage. By setting the transmission / reception range of the ultrasonic transmitter / receiver, the following vehicle can be confirmed as in the past.

[Brief description of drawings]

FIG. 1 is a view for explaining the structure of the present invention, and FIG. 2 is a view showing the structure of a door half-open lock device according to an embodiment of the present invention. 1, 9 ... Door, 4a, 15, 16 ... Ultrasonic transmitter, 4b, 15a, 1
6a ... Ultrasonic receiver, 10a ... Tooth, 11 ... Pawl, 12 ... Solenoid, 21 ... Door inner handle

Claims (1)

[Scope of utility model registration request] 1. A door comprising: a lock mechanism for locking the door in a half-open position; a lock drive section for operating the lock mechanism; and an ultrasonic transceiver for transmitting and receiving ultrasonic waves in at least a lateral range of the door. An ultrasonic distance measuring unit that supplies an automatic door lock signal for activating the lock driving unit to the lock driving unit when an ultrasonic reflecting object within a predetermined distance is detected in the lateral range when opened, and a manual operation According to the invention, a door half-open lock device for a vehicle, comprising: a manual lock control unit for supplying to the lock drive unit a door manual lock signal for activating the lock drive unit at an arbitrary door half-open position instead of the door automatic lock signal.