JPH0257636B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides different auditory sensations when locking and unlocking.
The present invention relates to a lock/unlock notification device that activates visual means.

A conventional locking device includes, for example, a locking confirmation device 4 connected in series with a DC or AC power source 1, a light bulb 2, and a switch portion 3, as shown in FIG. 1A. The switch part 3 is a handle 6 provided on the first wall 5.
By rotating the first wall 5, the protruding piece 7 protruding from the first wall 5 is inserted into the hole 9 of the second wall 8 and closed. That is, the first wall 5 and the second wall 8 form a door portion. In this case, as shown in FIG. 1A, by rotating the handle 6 in the direction of arrow A, the protruding piece 7 is inserted into the hole 9, and the protruding piece 7 closes the switch part 3, making the detection circuit 4 a closed circuit. The light bulb 2 of the detection circuit 4 is turned on by the power supply 1 of the detection circuit 4, and completion of locking is confirmed by this lighting.

However, according to such a structure, as shown in FIG. 1B, the lit light bulb 2 simply goes out when the lock is changed from locking to unlocking, and it is difficult for people with visual impairments such as blind people to see the unlocked state. cannot be clearly confirmed.

In view of this, the present invention provides a notification means that can be visually confirmed both when locking and unlocking, and also provides a notification means that can be confirmed audibly. The main purpose is to propose a lock/unlock notification device that can also confirm whether the vehicle is locked or unlocked.

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a configuration diagram showing an example of the apparatus of the present invention. Reference numeral 10 indicates a door lock, which is composed of a universal lock pawl 11 and a lock pawl 12, and is usually attached to a door or the like. On the other hand, a housing 15 has a built-in first micro switch 13 at a position opposite to the lock pawl 12.
is provided on the wall side 16. Further, a second micro switch 14 that engages with a protrusion 12a provided on the surface in the direction of movement of the lock pawl 12 is also built into the housing 15. As shown in FIG. 3, when the lock pawl 12 moves in the direction of arrow A, the protrusion 12a
When the leaf portion 14a of the second micro switch 14 is moved in the direction of arrow B, the compression spring 12b does not contract instantaneously. Second
The leaf portion 14a of the micro switch 14 is biased to turn on, and the next moment the compression spring 12b contracts and the second micro switch 14 protrudes or contracts so that the leaf portion 14a maintains the off state. be. In this case, the compression spring 12b
Of course, is set smaller than the repulsive force of the leaf portion of the second micro switch 14.

The first and second microswitches 13 and 14 are connected to a lock/unlock confirmation device 20. The lock/unlock confirmation device 20 mainly comprises a power supply section 21, a lock confirmation lamp 22 and a lock confirmation buzzer 23, which are turned on when the lock pawl 12 is activated and the first micro switch 13 is turned on. Power supply section 21
Although the figure shows an AC power source composed of a transformer 24 and a rectifier 25, a DC power source can also be used. When the first micro switch 13 is turned on,
The comparator 26 operates to light up the lock confirmation lamp 22, and the buzzer time adjustment timer 27 and confirmation buzzer 23 are constructed of a bistable multivibrator or the like with a buzzer volume adjustment variable resistor 27a connected to the comparator 26. The circuit is configured to operate. Therefore, as shown in FIG. 4A, by closing the door and protruding the lock pawl 12 to lock it, the first micro switch 13 is turned on, causing the lock confirmation lamp 22 to light up and the confirmation buzzer 23 to operate. This makes it possible to visually and audibly confirm that the door is locked.

In this case, the second micro switch 14 is not turned on by contact with the protrusion 12a of the lock pawl 12 when the door is closed, but when releasing the lock from the lock pawl 12 by opening the door, the second micro switch 14 is turned on. As shown in FIG. B, the protrusion 12a is turned on because it comes into contact with the leaf portion 14a. Since the second micro switch 14 is connected to the confirmation buzzer 23, turning it on activates the buzzer 23 to notify unlocking. Moreover, when the lock is released, the operating time of the buzzer 23 is determined by the second micro switch 1.
Since the ON time of 4 is instantaneous, the notification is short-term, and therefore, locking and unlocking can be easily distinguished by the length of the buzzer sound. Furthermore, the locked state and the unlocked state can be easily identified visually by the power supply confirmation lamp 28 and the lock confirmation lamp 22 being turned on and off.

In addition, although the above explanation adopts the method of always closing the first micro switch 13 by closing the door, conversely, by replacing it with a switch of the normally open method, the lock pawl 12 can be used as the second micro switch 14. The buzzer 23 can be configured to operate instantly when the door contacts (when the door is locked), and to operate the buzzer 23 continuously for a certain period of time when the door is unlocked. In this case, it goes without saying that the direction of the protrusion 12a is opposite to that in the above example.

As described above, according to the present invention, the first switch is comprised of a first switch that is continuously kept closed by contact with the lock pawl, and a second switch that is instantaneously closed by contact with the lock pawl. The switch is connected to the lighting body and the buzzer, and the second switch is connected to the buzzer, so that when the first switch is closed, the second switch remains open, and when the first switch is opened, the second switch is instantaneously closed. Since the lock is configured so that it is possible to visually confirm the lock, it is also possible to visually and audibly notify the lock when the lock is unlocked.

Further, according to the present invention, the switch is composed of a first switch that is continuously kept closed by contact with the lock pawl, and a second switch that is instantaneously closed by contact with the lock pawl, and the first switch is turned on. the second switch is connected to the body and connected to the buzzer via a buzzer time adjustment timer, and the second switch is connected to the buzzer, and when the first switch is closed, the second switch remains open; Since the second switch is configured so that the second switch is instantaneously closed, the first switch is continuously closed due to the locked state of the lock pawl or the engaged state of the adjustable lock. Although the lighting body is turned on for confirmation, the notification by the buzzer is stopped after a predetermined period of time has elapsed, so that the quietness in the room can be maintained. For example, when a visually impaired person is at home, when an outsider unlocks the door to break in or enter the room, the user can confirm by sounding the buzzer, which is extremely useful for crime prevention.

Further, according to the present invention, the switch is comprised of a first switch that is continuously kept open by contact with the lock pawl, and a second switch that is instantaneously closed by contact with the lock pawl, and the first switch is connected to the lighting body. and a buzzer, the second switch is connected to the buzzer, and the first switch is connected to the buzzer.
The second switch is instantaneously closed when the switch is opened, and the second switch remains open when the first switch is closed. Since the lighting body and the buzzer are activated, the user can be notified of the release of cold air.

Further, according to the present invention, the switch is comprised of a first switch that is continuously kept open by contact with the lock pawl, and a second switch that is instantaneously closed by contact with the lock pawl, and the first switch is connected to the lighting body. and is connected to the buzzer via a buzzer time adjustment timer, and the second switch is connected to the buzzer, and when the first switch is opened, the second switch is instantaneously closed, and when the first switch is closed, the second switch is connected to the buzzer. Since the second switch is configured to maintain the open state when the door is opened, for example, when applied to the door of a freezer, the lighting body and buzzer are always activated when the door is opened, so that cold air is not released to the user. In addition to being able to alert the user, since the buzzer operates instantaneously when the door is closed, it has the effect of making it possible to confirm it audibly.

[Brief explanation of drawings]

1A and 1B are structural and operational diagrams showing an example of a conventional locking device, FIG. 2 is a configuration diagram showing an example of the device of the present invention, FIG. 3 is a sectional view showing an example of a lock claw, and FIG. Figures A and B are explanatory diagrams of the operations of the first and second microswitches. 10... Door lock, 12... Lock claw, 12a
...Protrusion, 13...First micro switch, 14
...Second micro switch, 22...Lock confirmation lamp, 23...Lock confirmation buzzer, 27...Buzzer time adjustment timer.

Claims (1)

[Scope of Claims] 1. Consisting of a first switch that is continuously kept closed by contact with the lock pawl, and a second switch that is instantaneously closed by contact with the lock pawl, and the first switch is turned on. The second switch is connected to the body and the buzzer, and when the first switch is closed, the second switch remains open, and when the first switch is opened, the second switch is instantaneously closed. A locking/unlocking notification device characterized by being configured as follows. 2 Consisting of a first switch that is continuously kept closed by contact with the locking claw, and a second switch that is instantaneously closed by contact with the locking claw, the first switch is connected to the lighting body, and The second switch is connected to the buzzer through the buzzer time adjustment timer, and the second switch remains open when the first switch is closed, and the second switch remains open when the first switch is closed. A lock/unlock notification device characterized in that it is configured to instantaneously close. 3 Consists of a first switch that is continuously kept open when the locking claw comes into contact with it, and a second switch that instantly closes when the locking claw comes into contact with it, and the first switch is connected to the lighting body and the buzzer. The second switch is also connected to a buzzer, and when the first switch is opened, the second switch is instantaneously closed, and when the first switch is closed, the second switch is maintained in the open state. Lock/unlock notification device. 4 Consists of a first switch that is continuously kept open by contact with the lock pawl, and a second switch that is instantaneously closed by contact with the lock pawl, and the first switch is connected to the lighting body and has a buzzer. The second switch is connected to the buzzer via the time adjustment timer, and the second switch is instantaneously closed when the first switch is opened, and the second switch is closed when the first switch is closed. A lock/unlock notification device configured to maintain an open state.