JPS6214291Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric code key lock device for a fixture such as a safe or locker.

Generally, this type of electric code lock device works by setting a PIN in advance in a PIN setting device installed inside the fixture, and when this set PIN matches an unlocking number entered from outside the fixture, the lock on the fixture door is released, allowing the door to be opened.

In this electric code key lock device, the code number setting device provided inside the fixture is provided with a display section for displaying the code number set therein. The displayed code number can be seen when the door is opened, so a third party can easily see the set code number.

The present invention is designed to prevent the set code number from being easily seen by a third party when a code number display section is provided in the code number setting device installed inside the fixture. The gist of this is that a code number is set in advance on a code number setting device installed inside a fixture with a door, such as a safe, and a code number is set in advance on a code number setting device installed inside a fixture with a door, such as a safe. In an electric code key lock device that unlocks the door when an input unlock number matches the set code number, the code number display section of the code number setting device displays the code. A means for blinding the code number display section is provided, and the alarm means and the opening/closing operation of the door are linked so that the cover number display part is hidden by the cover means when the door is opened. .

The embodiment of the present invention will be described below with reference to drawings when applied to a safe. FIG. The door 2 is connected with a hinge 3 so that it can be opened and closed, and a pair of longitudinal vertically movable rods 4, 4 are attached to the back side of the door 2 (inside the safe body) so that the door can be moved vertically and vertically with respect to each other via the connecting rods. At the same time, each vertically movable lever 4 is provided with a lateral bar 7 which can be moved left and right via a bell crank lever 6, and one end of another crank lever 8 is provided with a pin in the middle of one of the vertically movable levers 4. 9 are connected, and the middle part of the crank lever 8 is connected to the door 2.
A handle 11 is fixed to a pivot shaft 10 that is inserted into the inside and outside of the door 2, and is attached to the pivot shaft 10 on the outside of the door 2.
When the locking member rotates, the engaging portions 12 at the ends of the vertically movable rods 4, 4 and the lateral bar rod 7 extend and retract from the side end surface of the door 2, and are configured to be able to engage and disengage from the safe body 1. .

Reference numeral 13 denotes an engagement piece connected to the other end of the crank lever 8 to which the handle 11 is attached by a pin 14 and pivoted 15 so as to be laterally movable. The protrusion of the engaging piece 13 makes it impossible to move the engaging piece 13 laterally. Further, the separate engaging portion 17 attached to the one vertically movable rod 4 is configured to be engaged and disengaged by protruding and retracting a bar 19 of a cylinder lock 18 that can be unlocked from the front side of the safe door 2.

The vertically movable rods 4, 4 are biased by a spring 20, and the engaging portions 12 at the tips of both the vertically movable rods 4, 4 and the tip of the lateral bar 7 attached via the bell crank lever 6 are always connected to the safe body 1. It is designed to protrude toward the side, and when the door is opened, the vertically movable rod 4 and the horizontal bar 7
A pin is attached to a bracket 21 protruding from the back of the door 2 so that the middle part of the latch 22 can be rotated back and forth toward the back of the door so that each end engaging part of the latch can be kept recessed from the side end surface of the door 2. A torsion spring 24 biases the rear end of the latch 22 toward the front side of the vertically movable rod 4. A protrusion 25 is provided at the opening of the safe body 1 so that it protrudes when the door is closed. 25 presses the front surface of the tip of the latch 22 so that the rear end of the latch 22 moves away from the front surface of the vertically movable rod 4 against the force of the spring 24. Only when the rear end of 22 approaches the vertically movable rod 4, the latch 22 and the vertically movable rod 4 are engaged with each other to disable the vertical movement of the vertically movable rod 4.An engaging protrusion 26 is provided, and 27 is a support bracket for the latch 22.

In the safe of the present invention, a number to be unlocked is set in advance in a code number setting device 28, which will be described later, provided inside the safe, and this code number matches the unlock number input from the outside of the door 2. If the electromagnetic solenoid SO
It is configured so that it can be unlocked by driving. One of the electric code key lock devices in the present invention is an unlock signal input device 29 provided on the surface side of the safe door 2.
On the front side of the signal input device 29, numbers "0" to "0" are displayed.
It is equipped with a key switch KS that generates the signals "9", "PW", and "OP". By pressing the "PW" key switch KS, power is supplied to the electric circuit installed on the back side of the safe door 2, and the Turn on the lamp PL that indicates this.

At this time, as shown in FIGS. 7 and 8, the unlock signal input device 29 is provided with a cover body 30 that completely covers the front side of the key switch KS. For each place,
A key pen 33 is prepared, which has a fitting hole 31 of a suitably complicated shape such as a circular, square, triangular, or arrow shape, and is equipped with a pressing part 32 at the tip that can penetrate each fitting hole 31. If the key switch KS is pressed according to the predetermined code number,
It is possible to vary the design of the key switch KS section and at the same time make it appear to an outsider that the use of a special instrument or tool is required to unlock the lock.

The power source of the electric cryptographic key lock device in the present invention may be either alternating current or direct current, but if a power source with a limited amount of electricity, such as a dry cell or storage battery, is installed in the safe, natural discharge may be used to prevent it from being used for a long period of time. Therefore, in the present invention, a power source such as a dry cell battery is removably provided on the outside of the safe, since the electricity consumed by the lock makes it impossible to unlock the safe. For example, as shown in FIGS. 4 and 6, the key switch portion 29' of the unlocking signal input device 29 is placed eccentrically with respect to the base portion 29'' by the pin 34.
A guide pin 35 is pivotally attached and protrudes from the base 29''.
An arcuate groove 36 formed on the back surface of the key switch section 29'' is fitted into the key switch section 29'' to allow the key switch section 29' to rotate at an appropriate angle, and a power source storage chamber 37 for a dry battery 38 or the like is formed on the surface side of the base section 29''. Normally, the key switch part 29' completely overlaps the surface side of the base part 29'' to cover the storage chamber 37, and if necessary, the key switch part 29' is completely overlapped with the front surface side of the base part 29'', and if necessary, the key switch part 29' is closed as shown by the two-dot chain line in FIG.
By shifting and rotating 9' around the 34 pins, the dry cell storage chamber 37 is exposed and the dry cell 3
8 can be replaced. Here, 39 is a hole for guiding the wiring cords in the key switch part 29' to the base 29'' side, and 40 is a through hole for guiding these cords to each electric circuit on the back side of the safe door 2. 37 may be provided at a location different from the key switch portion 29' with a lid that can be opened and closed independently.

Furthermore, 28 is a code number setting device of the electric circuit part provided on the back side of the safe door 2 in the electric code key lock device, and the code number setting display section 28' is equipped with a rotary switch etc. with a numerical display in parallel. Then,
The safe is configured so that the user of the safe can check the set code number through a window bored in the cover plate 41 on the back side of the safe door 2 and at the same time change the code number arbitrarily. Reference numeral 42 denotes a blind member that covers the front face of the code setting display unit 28' when the safe door is opened, and moves away from the front face of the setting display unit 28' when the safe door is closed. An adjustment member 42 is provided on the vertically movable rod 4.
The configuration is such that the setting display section 28' is covered by upward movement, and a blinding member 42 is provided on the horizontally movable bar rod 7 or the engaging piece 13, and the left and right sides of the blinding member 42 are It may be configured such that the illumination number setting display section 28' provided in the vicinity thereof is covered or exposed by movement.

With this configuration, the unlock number entered by pressing the key switch KS and the preset unlock number, e.g.
If the digits match the blackout number, the electromagnetic solenoid SO
is driven, the lock portion 16 is depressed, and the engaging piece 13 can be moved laterally. By rotating the handle 11 as shown by the two-dot chain line in FIG. 1, the vertically movable rod 4,
4 and the respective engaging portions 12 at the tips of the bar rods 7 release the engagement with the safe body 1. At this time, one of the vertically movable rods 4 rises by a distance l as shown in FIG. The pressure on the latch 22 by the protrusion 25 on the main body 1 is released, and the latch 22 is released by the spring 2 as shown by the two-dot chain line in FIG.
4, and prevents the vertical movement rod 4 from moving downward. Therefore, the blind member 42 attached to the vertical movement lever 4 remains in a state covering the front side of the code number setting display section 28', so even when the safe door 2 is open, the code number cannot be set to the third one. There is no risk of someone spying on you.

In addition, to reset the setting to change the dark light number, with the door 2 open, press the spring 2 on the rear end of the latch 22.
4, the engagement with the engagement protrusion 26 is released, and the spring 2
The vertically movable rod 4 descends due to zero force, and the blind member 42
Since the code moves off the front of the code number setting display section 28', it is only necessary to change the code number in the setting display part 28', and then check whether or not the code operates correctly with the changed code number. In order to test
With the door 2 open, press the key switch KS according to the code number, rotate the handle 11 as described above, and the vertical movement rods 4, 4 will move up and down, so that the engaging part 12 will move to the side edge of the door 2. Check whether it will die or not. This makes it possible to prevent operational errors and confirmation errors caused by changing the code number, such as closing the safe door 2 while the code number is incorrectly or uncertainly set.

As described above, the present invention sets a code number in advance in a code number setting device installed inside a fixture with a door, such as a safe, and inputs an unlock number into an unlock signal input device installed outside the fixture. In the electric code key lock device that unlocks the door when the code matches the set code number, the code number display section of the code number setting device includes a code corresponding to the code number display section. A blindfold means is provided, and the blindfold means and the opening/closing operation of the door are linked so that the blindfold means hides the code number display part when the door is opened, and when the door is opened, Since the code number display part of the code number setting device in the fixture can be automatically hidden by the blinding means, the code number set in the code number setting device cannot be seen by a third party. It is possible to reliably prevent the
It has the effect of improving the theft prevention properties of fixtures.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway front view showing the back side of the safe door, FIG. 2 is an enlarged sectional view of the main part, and FIG. Figure 4 is a side sectional view of the unlock signal input device, Figure 5 is a front view taken along the - line in Figure 4, Figure 6 is an operation explanatory diagram of Figure 4,
FIG. 7 is a sectional view showing another embodiment of the unlocking signal input device, FIG. 8 is a front view of the main part of FIG. 7, and FIG. 9 is a perspective view of the key pen. 1... Safe body, 2... Door, 4, 4... Vertical movement lever, 29... Unlock signal input device, 29'... Key switch portion, 22... Latch, 26... Engaging protrusion, 2
8... Dark light number setting device, 28'... Dark light number setting display section, 42... Blindfold member, 20, 23... Spring.

Claims (1)

[Scope of utility model registration request] While a code number is set in advance in a code number setting device installed inside a fixture with a door such as a safe, the unlock number inputted into an unlock signal input device provided on the outside of the fixture is set to the set code number. In the electric code key lock device that unlocks the door when a match is made, the code number display section of the code number setting device is provided with a means for concealing the code number display section, and A blindfold means and an opening/closing operation of the door,
An electric code key lock device, characterized in that the code number display section is interlocked to be hidden by a blinding means when the door is opened.