JPS6114530Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a door opening/closing device that is devised to prevent forgetting to take out the key or forgetting to turn off various lights when opening the door of a car and getting out of the car. It is.

In automobiles, it is necessary to take measures to prevent theft, such as forgetting to remove the key or closing the window, and from a maintenance perspective, to prevent forgetting to turn off various lights or forgetting to tighten the parking brake. Even if a buzzer or warning light is used to notify the user, the problem is that it is easy to overlook as it is a routine issue and cannot be expected to be sufficiently effective.

This invention was made in view of the above-mentioned conventional problems, and includes a changing mechanism that can change the operating force or operating position of the manual operating member for opening and closing the door from inside the room. The changing mechanism is actuated by the detection signal of the abnormality detection circuit when the door is opened, so that even if the manual operation member itself is abnormal, the operator can be directly and reliably notified of abnormalities inside and outside the door. This is what I did.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1a, 1b, and 1c, an opening/closing device 2 for an automobile door 1 has a box-shaped housing 4 embedded in the door 1 and fixed with screws 3.
A knob 6 is rotatably supported on a hinge shaft 5, and a hook 6a of the knob 6 is engaged with a hook hole 7a of a connecting rod 7 of a locking device (not shown) of the door 1. They are connected together so that the door 1 can be opened by manually rotating the knob 6 to release the locking device.

An electromagnet 8 is buried horizontally in the bottom of the housing 4 at a position slightly lower than the bottom surface of the knob 6 when the knob 6 is in a non-operating position, and both end surfaces of the core 9 of the electromagnet 8 are raised upward. so that it comes into contact with a suction plate 11 fixed to the lower surface of the knob 6 with a screw 10.

As shown in FIG. 2, the electromagnet 8 is connected to a power source 13 via an abnormality detection circuit 12 via a lead wire 8a
Connect to.

The abnormality detection circuit 12 includes a key switch 14 that is turned on when the key is inserted, a light switch 15 that is turned on when lights such as headlights are on, a window switch 16 that is turned on when the window is not completely closed, and a parking brake. Parking switch 17 that turns on when the car is not on
for driving the electromagnet 8 by the power supply 13 when at least one of the switches is on.
An OR circuit 18 is provided. Note that the OR circuit 18 may not be provided, and the switches 14 to 17 may be connected in parallel. In addition, if the abnormality detection is limited to, for example, forgetting to remove the key, a key switch 1 is connected between the electromagnet 8 and the power source 13 as shown in FIG.
Just connect 4 in series.

If the opening/closing device 2 for the door 1 is configured as described above, for example, if the driver forgets to take out the key and tries to get out of the car, the key switch 14 is on, so the electromagnet 8 is energized, and the knob 6 is turned on. The suction plate 11 is suctioned to the core 9.

Therefore, when trying to pull the knob 6, the operating force for pulling the knob 6 is increased by the attraction force of the electromagnet 8.
The user can detect in advance that something is wrong and will be able to remove the key.

Furthermore, if it is necessary to leave the car with the key inserted, the door 1 can be opened and closed in the conventional manner by pulling the knob 6 strongly against the attraction force of the electromagnet 8.

Similarly, abnormalities such as forgetting to turn off lights, forgetting to close windows, and forgetting to tighten the parking brake can be detected in advance.

The opening/closing device 2 of the above embodiment was configured to increase the operating force of the knob 6.
Like the opening/closing device 19 shown in FIG. b, the knob 6 may be configured to be displaced to a position that makes operation inconvenient.

That is, the hook 6a of the knob 6 is engaged with and connected to the elongated hook hole 7a of the connecting rod 7 of the locking device (not shown) of the door 1, and the wire spring 20 wound around the hinge shaft 5 is connected. While the knob 6 is energized to the non-operating position and held against it, an electromagnet 8 is buried in the bottom of the housing 4 in a horizontal position at the non-operating position of the knob 6 and at a distance from the lower surface of the knob 4. When both end surfaces of the core 9 of the electromagnet 8 are raised upward to attract the adsorption plate 11 fixed to the lower surface of the knob 6, the knob 6 is pushed into the housing 4 against the urging force of the wire spring 20. It rotates greatly.

If the opening/closing device 19 of the door 1 is configured as described above, for example, if the driver forgets to take out the key and tries to get out of the car, the key switch 14 is on, so the electromagnet 8 is energized, and the knob 6 is turned on. Since the suction plate 11 is suctioned to the core 9, the knob 6 is rotated into the housing 4 against the biasing force of the wire spring 20, as shown in FIG. 4b.

Therefore, when an attempt is made to pull the knob 6, since the knob 6 is not in its normal position, an abnormality can be detected in advance, and the key can be removed.

Furthermore, if it is necessary to leave the car with the key inserted, the door 1 can be opened and closed in the conventional manner by raising the knob 6 with one's fingers against the attraction force of the electromagnet 8 and pulling it firmly.

As is clear from the above explanation, this invention uses an electromagnet as a changing mechanism that can change the operating force or operating position of the manual operation member for opening and closing the door, and this electromagnet is activated by the detection signal of the abnormality detection circuit. Since the device is activated, the operator can directly know if there is an abnormality in the manual operation member, such as forgetting to remove the key, and there is no need to worry about overlooking the problem as with a buzzer or warning light.

Furthermore, it is convenient to use because it does not require a special operation mode for abnormality detection and can be performed by normal operation.

Furthermore, if a key switch, light switch, etc. is used as the abnormality detection circuit, the structure can be simplified and the manufacturing cost can be reduced.

[Brief explanation of the drawing]

FIG. 1a is a front view of the opening/closing device of the first embodiment, FIG. 1b is a cross-sectional view taken along line A-A in FIG. 1a, FIG. 1c is a cross-sectional view taken along line B-B in FIG. 1b, Fig. 2 is a circuit configuration diagram of an abnormality detection circuit, Fig. 3 is a circuit configuration diagram showing a modification of Fig. 2, Fig. 4a is a sectional view of the switchgear of the second embodiment in normal operation, and Fig. 4 b is a cross-sectional view of FIG. 4a in an abnormal state. 1...Door, 2, 19...Opening/closing device, 4...Housing, 6...Knob, 8...Electromagnet, 9...Core, 11...Adsorption plate, 12...Abnormality detection circuit, 1
4, 15, 16, 17...switch.

Claims (1)

[Claims for Utility Model Registration] (1) A manual operation member for opening and closing the door is provided in a housing attached to the interior surface of the door, and a manual operation member is provided at the bottom of the housing. 1. A door opening/closing device characterized in that an electromagnet is provided which attracts a light, and the electromagnet is excited by a detection signal from a circuit that detects an abnormality such as forgetting to turn off a light. (2) The door opening/closing device according to claim 1, wherein the electromagnet is magnetized so as to attract the hand-operated member and increase the operating force. (3) The door opening/closing device according to claim 1, wherein the electromagnet is magnetized so as to attract the hand-operated member and displace it to a position that makes operation difficult.