JPH0811521B2 - Warning device for forgetting to remove the key from the vehicle - Google Patents

Description

Description: “Industrial field of use” The present invention relates to a key removal forgetting alarm device for giving a warning of forgetting to remove a vehicle engine key of a vehicle.

"Prior Art" As an apparatus of this type, there is an embodiment disclosed in, for example, JP-A-63-159159.

Therefore, this embodiment basically forms a series circuit by a door switch that is turned on when the door is opened, a key switch that is turned on when the engine key is inserted into the key cylinder, and an alarm device. It is characterized in that power is supplied to the series circuit by a drive power source of a door lock actuator which flows by a lock operation.

However, there are the following problems in this embodiment.

Although it is possible to warn if you forget to remove the engine key of the vehicle with a relatively simple structure using the existing circuit, the alarm will not sound if you simply open the door with the engine inserted in the key cylinder You have to do a lock operation.

Therefore, when the door is closed without locking the door, forgetting to remove the engine key may occur.

Judging from the configuration, it is generally considered that the engine key and the key cylinder are of a type using a key plate having a plurality of engaging portions in the key body. However, conventional engine keys are easy to duplicate, and the key cylinder can be easily picked in some cases.

Therefore, it is not possible to sufficiently expect the purpose of indirectly preventing the vehicle from being stolen in accordance with the purpose of forgetting to remove the engine key.

It is stated that a "key switch that turns on when the engine key is inserted into the key cylinder" is provided, but its specific configuration is not clear.

"Problems to be Solved by the Invention" In view of the above-mentioned conventional drawbacks, the present invention can completely prevent forgetting to remove the key and leaving the vehicle,
In addition, it is extremely difficult to duplicate the duplicate key in the market, and it is also very difficult to pick the key cylinder lock. Therefore, it can be expected to prevent vehicle theft as well. This is to obtain a key forget-forgotten alarm device for a vehicle that can be made simple or compact and has excellent durability.

[Means for Solving Problems] A vehicle forgetting key warning device for a vehicle according to the present invention has an outer cylinder member (2, 2, 27) having a plurality of through holes (3, 4, 27) in a radial direction.
2a) 6 and a key cylinder lock for an ignition switch having an inner cylinder member (5, 5a) rotatably received in the outer cylinder member and having a key hole (8, 8a), and the through hole A plurality of magnetic sensitive switches (11A, 11B, 11C) respectively provided in, and a magnetic key (7, 7A) inserted in the key hole and provided with a plurality of magnets in the key body (7a), A door switch (12) that is turned on when the door is opened and an alarm device (14) that issues an alarm based on a power supply signal supplied from an on-vehicle battery (15) form a series circuit, and a magnetic key is provided in the key hole. [Example] An example of the present invention will be described in detail below with reference to the accompanying drawings, in which the alarm device issues an alarm when the vehicle door is opened while the vehicle is being inserted as is.

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

In the figure, reference numeral 1 is a key cylinder lock which constitutes a part of an ignition coil or a key switch for a switch provided on a steering wheel column of an automobile.
This key cylinder lock 1 is, for example, shown in FIGS.
It is configured as shown in the figure.

That is, 2 is an outer cylinder member having a predetermined length. The outer cylinder member 2 has an outer hole 3 and an inner hole 4 which communicate with each other in a radial direction from an appropriate portion of an outer peripheral portion and intersect each other. It is provided in. In this embodiment, two through-holes including the outer hole 3 and the inner hole 4 are formed at a required interval.

Reference numeral 5 denotes an inner cylinder member that is rotatably received in the outer cylinder member 2 within a predetermined angle range. The inner cylinder member 4 has an appropriate size at a portion corresponding to the through hole on the outer peripheral portion. The groove 6 is formed, and the key body 7a of the magnet key 7 as an engine key shown in FIG. 3 is formed in the center thereof.
The key hole 8 corresponding to is opened.

Reference numeral 9 denotes a movable obstacle housed in both the inner hole 4 of the outer cylinder member 2 and the groove 6 of the inner cylinder member 5. In this embodiment, a plurality of magnet pin tumblers 9a and 9b are used. This movable obstacle 9 is urged toward the groove 6 of the inner cylinder member at the time of locking or before inserting the magnet key 7 by the spring member 10 having a relatively weak spring force installed in the inner hole 4 of the outer cylinder member. Has been done. The magnet key 7 is composed of a key body 7a to be inserted into the key hole and a grip portion 7a connected to the key body 7a. As shown in FIG. 5, a plurality of magnets are provided on the upper side of the key body 7a.
g1 and g2 are buried with a required space. The polarities of the plurality of magnets g1 and g2 can be arbitrarily combined.

Reference numeral 11 denotes a switch member which is provided on the key cylinder lock 1 of the key switch for the ignition switch and which is opened / closed by inserting / removing the magnet key 7 into / from the key hole 8. In this embodiment, as shown in FIG. By inserting the movable obstacle 9 into the groove 6 of the inner cylindrical member in accordance with its polarity.
There is provided a magnetic sensitive switch which detects a close-up of the spring member (10) when the spring member (10) springs up and approaches the spring member (10). As the magnetic sensitive switch 11, for example, a switch member 11A using a fixed contact piece 11a as a fixed contact and a movable contact piece 11b as a movable contact in FIG. 7 and a magnetic sensitive reed switch shown in FIG. 11B is used.

Therefore, in this embodiment, the switch member 11 using the magnetically sensitive switch is properly incorporated into the plurality of outer holes 3 of the outer cylinder member 2 as shown in FIGS. , 11 are connected in series and are protected by a cover body (not shown).

Next, reference numeral 12 shown in FIGS. 1 and 2 is a door switch which is turned on when the vehicle door is opened.
An electrical load 13 is connected to the.

Reference numeral 14 is an alarm device such as a buzzer connected between the switch member 11 of the key cylinder lock 1 and the door switch 12.
In this embodiment, the alarm device 14 is energized by using the on-vehicle battery 15 as a power source when both the switch member 11 and the door switch 12 are on, and sounds an alarm. 16 is a door switch
The room lamp is connected to the room lamp switch 12 and the room lamp switch 17.

[Operation] In the above structure, as shown in FIGS. 3 and 4, before inserting the magnet key 7 into the key hole 8 of the key cylinder lock 1, a plurality of magnetic pin tumblers 9a as movable obstacles are inserted. , 9b are pressed by the spring member 10 and are located in the groove 6 of the inner cylinder member, and the plurality of magnetic sensitive switches 11 as switch members are in the open state.

Then, as shown in FIGS. 5 and 6, first,
When the magnet key 7 is inserted into the key hole 8 of the key cylinder lock 1, the magnetic forces of the magnets g1 and g2 embedded in the magnet key 7 act on the corresponding magnetic pin tumblers 9a and 9b. , Each magnetic pin tumbler
9a and 9b jump up from the groove 6 of the inner cylinder member 5 against the spring force of the spring member 10 and approach each magnetic sensitive switch 11. Then, each magnetic sensitive switch 11 detects it,
Each is in a closed state.

Therefore, if you forget to remove the magnet key from the key cylinder lock 1 and open the door, the door switch 12 is turned on, and the current from the on-vehicle battery 15 causes a plurality of switch members.
11 through 11, alarm device 14, door switch 12, electrical load 13
The alarm 14 is turned on and the switches 11 and 12 on both sides are turned on.
Sounds an alarm as long as is on.

"Different Embodiments" Next, different embodiments of the present invention will be described. The same parts as those of the embodiment of the present invention are designated by the same and similar reference numerals, and duplicated description will be omitted.

In the embodiment shown in FIGS. 9 to 14, the key cylinder lock 1A is mainly different from the embodiment of the present invention.

That is, the key cylinder lock 1A is basically an outer cylinder member 2a, an inner cylinder member 5a rotatably provided on the outer cylinder member 2a, and a spring member 10 which is built in the outer cylinder member 2a.
It is composed of a driver pin 26 that constantly presses the movable pin 25 installed in the inner tubular member 5a by a in the radial direction of the key hole 8a for the magnet key 7A, and at a suitable location of the thin portion of the outer tubular member 2a. A plurality of through holes 27 into which a plurality of magnetic sensitive switches 11C as switch members can be mounted are formed.

Then, even in the above configuration, if the magnet key 7A is inserted into the key hole 8a of the key cylinder lock 1A,
The magnetic sensitive switches 11C and 11C are turned on.

Therefore, when the door is opened, the door switch is turned on, the alarm sounds like the above-mentioned embodiment, and it is possible to prevent forgetting to remove the key.

The embodiment shown in FIGS. 13 and 14 is different from the embodiment of the present invention mainly in that a timer TM is provided.

That is, a controller 30 having a timer TM for operating the alarm device for a predetermined time is provided between the alarm devices 14 and the plurality of switch members 11, 11 of the key cylinder lock 1 (1A).

In the above configuration, both the switch members 11 and 11 and the door switch 12 are turned on, and the vehicle battery 15
Even if the current from the device is applied to the alarm device 14, the door switch 12, and the electrical load 13, the alarm device is activated for the output time of the timer TM.
14 is energized or not energized and an alarm is triggered.

"Effects of the Invention" As is apparent from the above description, the present invention has the effects listed below.

(1) It is inexpensive because there are few components as a whole.

(2) Since the magnet key that is inserted into the key cylinder lock of the vehicle and the switch member that is provided in the key cylinder lock that is turned on when the magnet key is inserted are used, there is no risk of the magnet key breaking down. In addition, since mechanical key cylinder locks are extremely rare, there is almost no concern that the alarm will not sound due to damage to the magnet key or failure of the key cylinder lock.

(3) Since the power supply signal supplied from the power supply via the switch member of the key cylinder lock can be used as information, it is easy to connect an alarm device etc. to the existing circuit of the door switch that is turned on when the door is opened. It can be implemented.

(4) Since it is necessary to consider the correspondence (number, position, etc.) with multiple switch members, it is extremely difficult to make a legitimate magnet key on the market, and the key cylinder lock 1 (1A) Since picking is very difficult, it can be expected to prevent vehicle theft.

(5) Since the magnetic sensitive switch is provided in each of the plurality of through holes of the outer tubular member (2, 2a), the magnetic sensitive switch is not destroyed by a human factor, and the device itself is simple or compact. Can be realized.

[Brief description of drawings]

1 to 14 show an embodiment of the present invention. Specifically, FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention,
FIG. 2 is an electrical block diagram, FIGS. 3 to 6 are schematic explanatory views showing the essential parts of the present invention, and FIGS. 7 and 8 are explanatory views showing the switch member of the present invention. 15 to 14 are explanatory views showing different embodiments of the present invention. 1, 1A: Key cylinder lock, 2, 2a: Outer cylinder member, 5, 5a: Inner cylinder member, 7, 7A: Magnet key, g1, g2: Magnet, 9: Moving obstacle, 11 , 11A, 11B, 11C …… Switch member, 12 …… Door switch, 13 …… Electrical load, 15 …… In-vehicle battery, TM …… Timer.

Claims (1)

[Claims] 1. A plurality of through holes (3, 4, 27) in the radial direction.
For an ignition switch having an outer cylinder member (2, 2a) 6 having an inner cylinder member (5, 5a) rotatably received in the outer cylinder member and having a key hole (8, 8a) formed therein. A key cylinder lock, a plurality of magnetic sensitive switches (11A, 11B, 11C) respectively provided in the through holes, and a magnet inserted in the key holes and provided with a plurality of magnets in the key body (7a). A series circuit is formed by keys (7, 7A), a door switch (12) that is turned on when the door is opened, and an alarm device (14) that issues an alarm using a power supply signal supplied from an on-vehicle battery (15) as information. An alarm device for forgetting to remove the key of a vehicle, wherein the alarm device issues an alarm when the door of the vehicle is opened with the magnet key still inserted in the key hole.