JPS61191776A - Door lock state display apparatus of car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to indicating the lock status of a motor vehicle door.

(Summary of the Invention) The present invention provides an automobile door lock state display device that includes:
By lighting up the light emitting element when the door is locked, the locked state of the door can be easily confirmed visually.

(Prior art and its problems) For example, in the case of a four-door type car, the driver must lock the door on the driver's side both when starting the car and when leaving the car when getting out of the car. After doing so, it is customary to check that all doors are locked, such as checking whether the passenger side door and the two rear seat side doors are each locked.

Additionally, if the driver is unloading luggage from the rear seat side, the driver locks the rear seat door and then checks to see if the other doors are locked.

However, when the room lamp inside the car is off at night, etc., the inside of the car is dark, so it is difficult to visually confirm the locked state. Furthermore, even during the daytime, depending on the shape of the lock knob and its mounting condition, it may be difficult to confirm the locked state of the lock knob. Moreover, it is quite troublesome for drivers to check whether the doors are locked on the passenger side or the rear seat side, especially when they are tired after driving a long distance. Confirmation may be omitted.

In addition, to simplify door locking operations, the passenger side door and the two rear seats are automatically locked by simply operating the lock knob on the driver's side door. There is something I did.

However, even in the case of such a door lock mechanism, although the door locking operation is simple, the driver is motivated to want to be more sure of safety when driving the vehicle. For this reason, it is customary for the driver to visually check the locked state of all the doors in order to confirm whether all the door lock mechanisms are fully activated or not.

(Objective of the Invention) An object of the present invention is to make it possible to check the locked state of a door extremely easily and reliably.

(Configuration and Effects of the Invention) In order to achieve such an object, the present invention provides a door lock mechanism that locks a door by operating a lock knob;
a light emitting element attached to the lock knob; a plurality of door lock switches that close when the door is locked by operation of the lock knob and connected to each other in series; a power source for driving the light emitting element; and a timer circuit that is activated when all of the door lock switches are closed and outputs a time-up signal after a predetermined period of time has elapsed since activation, and the light emitting element is activated when all of the door lock switches are closed. The door lock switch is connected to the drive power source through a series circuit of the door lock switch, and is disconnected from the door lock switch by the time-up signal.

With this configuration, the light emitting element attached to the lock knob can
When the door is locked and all door lock switches are closed, it is connected to a driving power source and emits light. By visually confirming this light emission, it is certain that all the doors are locked. Further, since the light emitting element is turned off by a time-up signal after a predetermined period of time has elapsed, the power of the drive power source is not wasted.

(Description of Examples) Hereinafter, the present invention will be described in detail based on examples shown in the drawings. FIG. 1 is a circuit block diagram of a door lock state display device for an automobile according to this embodiment, and FIG. 2 is an external side view of an automobile in which the display device of this embodiment is incorporated.
3 is a schematic view of a door lock mechanism provided in the structure of the door of the automobile shown in FIG. 2, and FIG. 4 is a sectional view of a lock knob provided in the door lock mechanism shown in FIG. 3.

The automobile 1 shown in FIG. 2 has a front door 2 and a rear door 3.
It is a four-door type with

The door 4 shown in FIG. 3 is on the driver's seat side, and the door 4 is provided with a door lock mechanism 5. This door lock mechanism 5 is provided within the structure of the door 4, and a lock knob 7 is attached to the upper end of the door lock rod 6.
The lock knob 7 projects upward from near the lower end of the window. The lower end of the door lock rod 6 is a lock fitting 8
is connected to. This lock fitting 8 is interlocked and connected to a door lock motor IO within a door lock unit 9. Further, a lock pawl (not shown) in the door lock unit 9, a door opening/closing knob 11.12 for inside and outside the vehicle, and a key cylinder 13 are connected to link mechanisms 14, 15.1, respectively.
They are interlocked and connected via 6. - The lock knob 7 shown in FIG. 4 has a light emitting element 17 embedded therein. The lock knob 7 is formed with cutout windows 18, 19, and 20. The windows 18, 19, 20 are filled with transparent fluorescent paint 21, 22, 23, and the light 24 from the light emitting element 17 is diffusely reflected by the fluorescent paint.

In the circuit block diagram shown in FIG. 1, 17 is a light emitting element embedded inside the lock knob 7 of the door 4 on the driver's side, and 25, 26, 27, 28 are the doors 4 locked by operating the lock knob 7. This is a door lock switch that closes when the lock rod 6 is closed, and is installed near the protrusion 6a attached to the lock rod 6 midway in the longitudinal direction of all four doors 4, and is activated when the lock rod 6 is displaced to the lock position. It is supposed to be done. This door lock switch 25.
26, 27, and 28 are for the driver's seat side, passenger seat side, and rear seat side, respectively, and are connected in series to each other. 29 is a power source for driving the light emitting element 17. 30 is
a timer circuit that is activated when all of the door lock switches 25, 26, 27, and 28 are closed, and outputs a time-up signal after a predetermined period of time has elapsed since activation;
31 is a power supply cutoff switch that opens in response to the time-up signal.

Next, the operation will be explained.

When the door 4 is locked by the door lock mechanism 5 and the passenger side door and rear seat side door are locked,
Since all of the door lock switches 25, 26, 27 and 28 are closed, the light emitting element I7
．． It will be connected to the drive power source 29 via 26, 27, and 28. As a result, the light emitting element 17 is turned on. Since this light emitting element 17 is provided on the lock knob 7 on the driver's seat side, the driver can easily visually confirm that all the doors are locked by lighting the light emitting element 17.

When all the door lock switches are closed, the timer circuit 30 detects the current change at terminals a and b, is activated in response to the detection, and starts operating at the same time as this activation, and after a predetermined period of time has elapsed. Afterwards, a time-up signal is output. This time-up signal operates the cut-off switch 31 in the direction that the cut-off switch 31 opens. As a result, cutoff switch 3! opens, and at the same time the light emitting element 17
The connection between the drive power source 29 and the drive power source 29 is released.

The light emitting element 17 may be attached to the upper surface of the lock knob 7 instead of being embedded in the lock knob 7.

The present invention is not limited to providing the light emitting element 17 only on the lock knob 7 on the driver's seat side as described above.
7 may be provided on the lock knobs 7 of all the doors 4, and the locking of all the doors 4 may be confirmed by lighting up the light emitting element 17 attached to any of the lock knobs 7.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram of a device according to an embodiment of the present invention, FIG. 2 is an external side view of an automobile in which the display device of the embodiment is incorporated, and FIG. 3 is an inside view of the structure of the automobile door shown in FIG. FIG. 4 is a schematic diagram of the door lock mechanism provided in the door lock mechanism shown in FIG. 3. is the driver's side door, 5 is the door lock mechanism, 7 is the lock knob, 17 is the light emitting element, 25.26, 27.28 are the door lock switches, 2
9 is a drive power supply, and 30 is a timer circuit.

Claims (1)

[Claims] (1) A door lock mechanism that locks a door by operating a lock knob, a light emitting element attached to the lock knob, and a light emitting element that closes when the door is locked by operating the lock knob and are connected in series to each other. and a timer circuit that is activated when all of the door lock switches are closed and outputs a time-up signal after a predetermined period of time has elapsed since activation. , the light emitting element is connected to the drive power source through a series circuit of the door lock switches when all of the door lock switches are closed, and the connection is released by the time-up signal. An automobile door lock status display device.