JPS6123579Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an electronic key device that is installed on bags, doors, etc., and can be unlocked by operating multiple operation switches that match preset conditions. be.

Conventionally, electronic key devices that can be unlocked when multiple operating switches are operated to match preset conditions have a battery inside and an operating switch and key unlocking lever on the outside. , a key locking means is installed inside each of them. The above locking means normally holds the key in the locked state and releases the lock by activating a drive device such as a solenoid when the operation switch is operated correctly, but if the battery is exhausted or the electrical system The disadvantage is that if an abnormality occurs in the lock, the drive device will not operate and the lock cannot be unlocked. Therefore, in the conventional key device, it is necessary to provide a terminal for supplying power from the outside to the drive device in order to operate the drive device when the battery is exhausted.

In addition, the conventional key device operates the drive device each time the operating switch is operated correctly, so there is a problem that the battery quickly runs out.

This idea was created in view of the above circumstances, and it reduces power consumption as much as possible.
An object of the present invention is to provide an electronic key device that unlocks a key when power supply is insufficient.

This invention will be explained below based on examples with reference to the accompanying drawings.

As shown in the figure, the bag 1 consists of a main body 2 and a lid 3. The main body 2 has a lock member 5 of a key device 4 rotatably supported at its end, and the lid 3 has a flat plate member 6. Fixed. The tip of the bar member 5 is T
It is shaped like a letter and is pressed outward from the bag by suitable spring means. Further, on the outer surface of the flat plate member 6, a plurality of operation switches 7a, 7
b,... an operating section 7, an unlocking lever 8 for unlocking the key, and a hole 9 into which the tip of the barb member can be freely inserted.
The unlocking lever 8 is attached to the plate-like member 6 so as to be swingable in the longitudinal direction (left-right direction in FIG. 2).

A hole 9 is provided below the hole 9 on the back side of the plate member 6.
A rocking plate 1 having a rectangular hole 10 sufficiently larger than the
1 is fixed to the unlocking lever 8, and the plate-like member 6
A pair of clamping pieces 13, 13 rotatably supported by a pin 12 on the plate member 6 are interposed between the rocking plate 11 and the plate member 6. At the tip of each clamping piece 13, 13,
A standing piece 14 is formed respectively, and both standing pieces 14,
By attaching a coil spring 15 acting inward to 14, the swing plate 11 is held between the two upright pieces 14, 14. Note that long holes 16 are formed in the swing plate 11 and the clamping pieces 13, 13, respectively.
A pin 17 fixed to the plate member 6 is inserted into the long hole 16, and the swing plate 1 is connected to the long hole 16 and the pin 17.
The swing range of 1 is regulated. Also, clamping piece 1
3 and 13, a T-shaped hole 18 consisting of a narrow part and a wide part is formed below the hole 9 of the plate member 6, and is directed inward from the long hole 16 of the clamping piece 13. When the gate member 5 is pressed into the T-shaped hole 18 through the hole 16a formed in
inserted into.

An elastic member 19 is provided at the end of the swing plate 11 to press the swing plate 11 toward the tip (leftward in FIG. 2). is in contact with the detection section 21. This limit switch 20 opens a contact when the detection part 21 is in contact with the rocking plate 11, and closes the contact when the detection part 21 is not in contact with the swing plate 11. The hole 15 is formed such that when the rocking plate 11 is sufficiently separated from the detection section 21, the wide portion of the T-shaped hole 18 is below the hole 9 of the plate member 6.

Further, a solenoid support plate 23 for fixing a solenoid 22 as a lock drive unit is fixed to the plate member 6 below the swing plate 11, and when power is supplied to the solenoid 22, the movable piece 24 moves upward. Move to. The swing plate 11 is provided with a restraining plate 25 that intersects with the movable piece 24 only when the solenoid 22 is activated and the movable piece 24 moves, and when the movable piece 24 and the restraining plate 25 intersect,
The swing plate 11 is prevented from moving rightward in FIG.
The narrow portion thereof is located below the hole 9 of the plate member 6.

Further, a battery storage section 26 is installed below the operation section 7 to store electronic components and batteries.

Note that in the above embodiment, the unlocking lever 8 may be rotatable, and the limit switch 20 is activated when the unlocking lever 8 is operated slightly to unlock it, or when the unlocking lever 8 is touched. The solenoid 22 may be a detector that uses light, magnetism, etc. to detect the solenoid 22.Furthermore, the solenoid 22 may be a drive device such as a motor, and these design changes are optional.

Next, the control means in the key device having the above configuration will be explained based on the block diagram shown in FIG.

As shown in the figure, when the operation switches 7a, 7b, . . . . The timer circuit 32 is reset when a switch signal is input when it is not in an operating state, and when a predetermined time has elapsed after being reset, it emits a timer signal, and the operation memory circuit 31 and counter 33 are reset by this timer signal. do. The operation storage circuit 31 stores sequentially input switch signals and outputs the stored contents. It is reset by a timer signal, and the counter 33 counts up every time a switch signal is input. A count signal is output when a predetermined count value is reached, and is reset by a timer signal. In addition, the operation storage unit 3
It is desirable that the counter 1 and the counter 33 can be reset from the outside by operating switches 7a, 7b, . . . of the operating section 7.

The condition storage section 35, which serves as a setting section that receives the storage contents of the operation storage section 31 and the memory signal of the memory switch 34, stores the storage contents of the condition storage section 31 when the memory signal is input. . The comparator 36 that inputs the stored contents of the operation storage section 31 and the condition storage section 35 is configured to operate the comparator 36 to input the stored contents of the operation storage section 31 and the condition storage section 35.
The stored contents of 1 and 35 are compared, and only when they match, a match signal is output, and the transistor 37 provided at the next stage is cut off, but otherwise the transistor 37 is kept conductive.

The solenoid 22, the transistor 37, the contact 38 of the limit switch 20, and the power switch 3
9 is connected in series to the battery, and the solenoid 22 is
It is driven only when the transistor 37, the contact 38 of the limit switch 20, and the power switch are conductive.

A buzzer 40 that issues an alarm when the solenoid 22 is activated is connected in parallel to the solenoid 22, and a display device 41 that displays the contents set in the setting storage section 35 when the memory switch 34 is operated is provided. The above memory switch 3
4 is fixed at an appropriate position on the back side of the plate member 6.

The operation of this invented device having the above configuration will be explained next. Note that the description will be made assuming that the power switch 39 is in the on state.

First, the operation switches 7a, 7b, . . . of the operation section 7 are operated.
After properly operating the memory switch 34, the operating conditions are stored in the condition storage section 35.Then, the tip of the bolt member 5 is inserted into the hole 9 of the plate member 6 and the lock is closed. In this locked state, the operating section 7
When operated, a matching signal is output from the comparator 36, the solenoid 22 is not activated, and when the unlocking lever 8 is operated, it is unlocked and the lid 3 of the bag 1 can be opened. However, the operation section 7 cannot be replaced by the condition storage section 35.
If the operation condition is not the same as that set in , the operation storage section 31 and the condition storage section 35 do not match, so the comparison section 36 does not generate a match signal, and the transistor 37 is in a conductive state. In order to unlock the lock in this state, move the unlock lever 8 to the right (second
(see figure), the rocking plate 11 moves to the right in conjunction with the unlocking lever 8.
Limit switch 20 that was in contact with rocking plate 11
When the detection part leaves and closes its contact 38, the solenoid 22 is energized, the movable piece 24 of the solenoid 22 moves and intersects the restraining piece 25, and the movement of the unlocking lever 8 is stopped. It remains locked.

As described above, this invention uses a detector that outputs a detection signal when the unlock lever is slightly operated or touched to unlock the unlock lever. A comparison circuit is provided near the interlocking part and generates a match signal only when the operation part is operated to match the unlocking condition of the setting part, and the detection signal of the detector is input and the match signal of the comparison part is input. By operating the drive unit only when no input is being made and locking the key device, the drive unit will not operate if the key is operated correctly, so almost no battery power will be consumed, and the battery will not run out of power. If the drive unit is exhausted, the drive unit will not operate and will not enter the locked state, so there is no need to specially install a terminal for supplying power from the outside as in the past.

[Brief explanation of the drawing]

The drawings show an example of this invention; Fig. 1 is a partially cutaway perspective view showing its use, Fig. 2 is a front view, Fig. 3 is a bottom view of Fig. 2, and Fig. 4 is an exploded perspective view of the main parts. FIG. 5 is a block diagram. 1...bag, 2...body, 3...lid, 4...
...Key device, 5...Barrel member, 6...Plate member, 7
...Operation unit, 7a, 7b, ...Operation switch, 8
...Unlock lever, 9...hole, 10...rectangular hole, 1
1... Sliding plate, 12... Pin, 13... Holding piece,
14... Standing piece, 15... Coil spring, 16...
Long hole, 17... Pin, 18... T-shaped hole, 19...
...Elastic member, 20...Limit switch, 21...
...detection section, 22 ... solenoid, 23 ... solenoid support plate, 24 ... movable piece, 25 ... restraining piece,
26...Battery storage section, 31...Operation storage section, 32
...Timer circuit, 33...Counter, 34...Memory switch, 35...Condition storage section, 36...Comparator, 37...Transistor, 38...Contact, 39
...Power switch, 40...Buzzer, 41...Display device.

Claims (1)

[Scope of utility model registration request] In a key device in which an operation part consisting of a plurality of operation switches and an unlock lever are arranged on the outside, the key device is provided at the unlock lever or the interlocking part of the unlock lever, or in the vicinity thereof, A detector that detects operation or touching of the unlocking lever and outputs a detection signal, a setting section where the unlocking conditions of the key device are set, and an operation section that matches the unlocking conditions of the setting section. a comparison section that emits a coincidence signal only when the key device is operated to do so, and a drive that operates to lock the key device only when the detection signal of the detector is input and the coincidence signal of the comparison section is not input. An electronic key device consisting of parts.