JPH0240207Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention can be used in furniture such as safes and lockers.
This invention relates to an electronic locking device for locking the door to the fixture body.

[Conventional technology]

Electronic locking devices for fixtures such as safes generally utilize an electromagnetic solenoid with a movable iron core, as described in, for example, Japanese Utility Model Application Publication No. 56-107042.

That is, an interlocking rod that reciprocates in the longitudinal direction in conjunction with the engagement and disengagement of the bar with the fixture body is provided on the back surface of the door in the fixture body, and the interlocking rod has an engagement portion having an engagement surface at one end. At the same time, an electromagnetic solenoid comprising a movable iron core that retreats against a spring when energized and protrudes due to the spring when energized is installed on the back side of the door, the movable iron core being located along the longitudinal axis of the interlocking rod. The direction is set so that it appears and moves approximately at right angles,
The movable iron core is engaged with the engagement surface of the engagement portion of the interlocking rod when the movable iron core protrudes and moves, thereby locking the interlocking rod so that it cannot move in the direction in which the bar piece comes out; When the electromagnetic solenoid is energized by an unlocking operation from the surface of the door, the engagement of the movable iron core with the engagement surface is released and the lock is released, and the engagement portion of the interlocking rod is The lock release holding surface, which the tip end surface of the movable iron core comes into contact with, is formed to extend along the longitudinal direction of the interlocking rod in a direction substantially perpendicular to the axis of the movable iron core. With the iron core retracted, if you move the interlocking rod by operating the handle from the door surface so that the interlocking bar piece disengages from the fixture body, the tip surface of the movable iron core will engage. Even if the movable core is located at the lock release holding surface in the lock release holding surface and the power to the electromagnetic solenoid is cut off, the tip surface of the movable core will come into contact with the lock release holding surface and the unlocked state will be maintained. are doing.

However, after the electromagnetic solenoid is energized and the door is opened, it takes a certain amount of time (usually 4 to 6 seconds) to perform a series of operations such as operating the handle.
On the other hand, if the power to the electromagnetic solenoid is cut off, the movable core will protrude due to the spring force and return to the locked state again. The electromagnetic solenoid was kept energized throughout the process until completion.

However, if the electromagnetic solenoid is continuously energized during a series of operations to open the door, the power consumption required for each unlocking operation is large, so the battery that is the power source for the electromagnetic solenoid is used. If the door is not opened within the time period when the electromagnetic solenoid is energized, it will immediately return to the locked state and you will have to start over from the unlocking operation, which requires a lot of effort to open the door. At the same time, battery consumption also increases.

In addition, due to the rapid battery consumption as mentioned above, it is necessary to use large and powerful batteries, which increases the maintenance cost of the locking device and
There was also a problem in that the design of the door was restricted due to the increased space for accommodating the batteries.

Regarding this point, as the prior art
Publication No. 21185 discloses that a retaining claw that engages and disengages from the movable core is rotatably provided on the back side of the door near the interlocking rod that is integrally attached to the bar, and that the movable core energizes the electromagnetic solenoid. When the movable iron core is moved backward to disengage from the interlocking rod by the lever, the movable iron core is held in the retreated position by the holding claw, and in this state, the interlocking rod is moved in the direction in which the bar bar disengages from the main body. When you move it,
When the holding pawl rotates on the interlocking rod, the engagement between the holding pawl and the movable core is released, and the tip surface of the movable iron core comes into contact with the side surface of the interlocking rod, and the movable iron core is held in the retracted position. In this state, when the interlocking rod is moved in the direction in which the bar engages with the main body, the movable iron core changes from the state in which its tip end is in contact with the side surface of the interlocking rod to the side surface due to the spring force. A device has been disclosed in which the locking lever is automatically locked when the locking lever comes into contact with the rear end surface of the interlocking rod.

[The problem that the idea aims to solve]

According to this prior art, the movable iron core can be held in the retracted position where it is disengaged from the interlocking rod by only energizing the electromagnetic solenoid for a very short period of time, so it has the advantage of solving the above-mentioned problems.

However, on the other hand, in this prior art, the movable iron core is held in the retracted position or protruded through the rotation of a holding pawl rotatably provided on the door, so it is necessary to release the lock before the lock is released. Before opening the door, the engagement between the locking pawl and the movable iron core may be unexpectedly released due to vibration, or the interlocking rod may be disengaged from the main body after the lock is released. When moving to release, if the moving speed of the interlocking rod is slow, the movable iron core may protrude too quickly, causing the movable iron core to come into contact with the rear end surface of the interlocking rod without contacting the side surface of the interlocking rod. There was a problem that the lock could stick out, and the function to keep it in the unlocked state was incomplete.

An object of the present invention is to provide an electronic locking device that can reliably maintain the unlocked state while retaining the advantage of being able to maintain the unlocked state by energizing the electromagnetic solenoid for a very short time. This is the purpose.

[Means to solve the problem]

In order to achieve this purpose, the present invention provides an interlocking rod on the back side of the door of a fixture body such as a safe that moves back and forth in the longitudinal direction in conjunction with the engagement and disengagement of the bar with the fixture body. , an electromagnetic solenoid comprising an engaging part having an engaging surface at one end, and a movable iron core provided on the back surface of the door that retreats against a spring when energized and protrudes by the spring when not energized; is provided so that the movable iron core moves in and out in a direction substantially perpendicular to the longitudinal direction of the interlocking rod, and the movable iron core
The movable iron core is associated with an engagement surface of an engagement portion of the interlocking rod so as to engage with the engagement surface when the movable iron core protrudes and lock the interlocking rod so that it cannot move in the direction in which the barb piece is removed; , the engaging portion of the interlocking rod,
In the electronic locking device, the lock release holding surface with which the distal end surface of the movable iron core comes into contact is formed to extend along the longitudinal direction of the interlocking rod in a direction substantially perpendicular to the axis of the movable iron core. The rod is provided with a regulating body extending in the longitudinal direction of the interlocking rod on the opposite side of the lock release holding surface of the engaging portion across the movable iron core, one end of which is engaged with the engaging portion. The other end of this regulating body is attached to the interlocking rod so that one end of the regulating body can move in a direction substantially perpendicular to the axis of the movable iron core. , the regulating body is provided with a regulating surface extending substantially parallel to the unlocking holding surface of the engaging portion along the longitudinal direction of the regulating body, and the regulating surface is arranged to be closer to the electromagnetic member than the locking releasing holding surface. The regulating body protrudes toward the solenoid, and further, the regulating body is provided with an inclined surface that comes into contact with the side surface of the movable iron core at one end thereof, and the inclined surface at the one end portion comes into contact with the side surface of the movable iron core. The configuration is such that a spring means is provided for biasing in the direction of

[Functions and effects of the idea]

With this configuration, when the bar is engaged with the fixture body by operating the handle from the surface of the door, the movable core of the electromagnetic solenoid protrudes with a spring, and the side surface of the tip of the movable core is connected to the interlocking rod. By coming into contact with the engaging surface of the engaging portion at is brought into contact with the side surface of the tip of the movable iron core against the spring force applied to the regulating body.

When the electromagnetic solenoid is energized by unlocking from the surface of the door, the movable core moves backward against the spring force, and the inclined guide surface of the regulator comes into contact with the side surface of the tip of the movable core. As a result, the regulating body is instantaneously moved by the spring means to the end face of the movable core in the retracted state, and even if the current to the electromagnetic solenoid is cut off in that state, When the movable iron core is in the retracted state, its tip end surface contacts the regulating surface of the regulating body, and the movable iron core is held in the retracted state.

That is, by only energizing the electromagnetic solenoid for a very short period of time, the interlocking rod is held in an unlocked state that allows the bar to move in the direction of removal from the fixture body.

Next, when the interlocking rod is moved so that the bar piece disengages from the fixture body in connection with the handle operation to open the door, the regulating body also moves its regulating surface to the tip surface of the movable iron core. If the regulating body moves while in contact and the contact surface of the regulating body comes off the tip surface of the movable iron core,
The distal end surface of the movable core now comes into contact with the unlocking holding surface of the engaging portion of the interlocking rod, and the unlocked state in which the movable core is at the retracted position relative to the engaging portion is also maintained.

In this case, when the movable iron core is maintained in the retracted position on the regulating surface of the regulating body, the elastic force of the spring means is not acting on the regulating body, and its posture is extremely stable, so that the door cannot Even if vibrations or the like are applied, the regulating body will not move unexpectedly, and the movable iron core can be reliably held in the retracted position and in the unlocked state.

Furthermore, because one end of the regulating body is close to the engaging part and the regulating surface of the regulating body protrudes toward the electromagnetic solenoid side beyond the lock release holding surface of the engaging part, the regulating body The transition from the state in which the movable iron core is held in the retracted position to the state in which the movable iron core is held in the retracted position by the lock release holding surface of the engagement portion is reliably performed regardless of the moving speed of the interlocking rod, etc. It is.

In this way, it is possible to reliably hold the movable iron core in the retracted position with the regulating body, and furthermore,
Since the state in which the movable iron core is held in the retracted position by the regulating body can be reliably transferred to the state in which the movable iron core is held in the retracted position by the lock release holding surface of the engaging part, the door can be opened. This makes it possible to reliably maintain the unlocked state without causing an unexpected situation where the lock returns to the locked state.

After using the fixture, close the door and engage the bar with the fixture body by operating the handle, etc.
The interlocking rod moves in conjunction with this. Then, because one end of the regulating body is close to the engaging part and the regulating surface of the regulating body protrudes toward the electromagnetic solenoid side beyond the lock release holding surface of the engaging part, the interlocking rod is During the movement, the inclined surface of the regulating body comes into contact with the side surface of the tip of the movable core while the tip surface of the movable core is in contact with the lock release holding surface of the engaging portion of the interlocking rod. , one end of the regulating body moves against the elastic force of the spring means, and when the interlocking rod is completely moved to the state where the bar piece is engaged with the fixture body, the movable iron core releases the lock at the engaging part. At the same time as it comes off the holding surface, the movable core protrudes due to the spring force, and the tip of the movable core
While the sloped surface of the regulating body remains in contact with the side surface, the interlocking rod contacts the engagement surface of the engagement portion, thereby moving the interlocking rod in the direction of disengaging the bar piece from the fixture body. The door is locked, held immovably in a state that prevents this.

Therefore, according to the present invention, once the lock is released by the unlocking operation, the unlocked state can be reliably maintained, thereby reducing the effort required to unlock and then open the locked door. It has the effect of reliably reducing

〔Example〕

Next, an example in which the present invention is applied to a safe that uses both an electronic locking device and a cylinder lock will be described based on the drawings (Figs. 1 to 5).
In the figure, reference numeral 1 indicates a safe body, and a door 2 is pivotally mounted on one side of the safe body 1 via a hinge 3 so as to be horizontally rotatable.
A handle 4 for opening and closing the door 2 and a panel 6 incorporating an unlocking means in an electronic locking device are attached to the front side of the door 2, while a cylinder lock 5' and an electromagnetic solenoid are attached to the back side of the door 2. 31
etc. are attached.

The panel 6 is equipped with a power switch 7, a pilot lamp 8, a battery accommodating section 10, and a push button switch 9 for inputting a lighting code. When a plurality of numbers from 0 to 9 are pressed on the switch 9 and the pressed password matches a preset number, the electromagnetic solenoid 31 is energized to release the lock.

Reference numeral 11 denotes a drive shaft that passes through the door 2 from the front surface to the back surface, and the handle 4 is fixed to the end of the drive shaft 11 located on the front side of the door 2. T on the end located on the back side
A T-shaped lever 12 is fixed, and vertical interlocking rods 13 and 14, which are attached to the left and right ends of the T-shaped lever 12 so as to be movable up and down along the back surface of the door 2, are attached to pins 1 and 12, respectively.
5, 16, and these vertically interlocking rods 13, 1
At the tip of 4, there is a bar 13' that engages and disengages from the safe body 1.
14' is integrally formed.

Further, on the back surface of the door 2, a horizontal interlocking rod 18 extending in the horizontal direction is slidably attached along its longitudinal direction, and the base end of the horizontal interlocking rod 18 is inserted into the one vertical interlocking rod 13. While connected to the locking section via a bell crank lever 17, a bar 18' that engages and disengages from the safe body 1 is integrally formed at the tip of the horizontal interlocking rod 18.

Further, the cylinder lock 5' has a key insertion portion 5.
is attached so as to be exposed on the surface of the door 2, and when a key (not shown) is inserted into the key insertion part 5 and rotated, a lock piece 5'' protrudes and is formed on the other vertical interlocking rod 14. By fitting into the notched groove 19, vertical movement of the other vertical interlocking rod 14 and one vertical interlocking rod 13, and horizontal movement of the horizontal interlocking rod 18 are disabled, and the door 2 is moved relative to the safe body 1. When the key is turned in the opposite direction, the engagement between the lock piece 5'' and the notch groove 19 of the vertical interlocking rod 14 is released, and the lock is released.

Reference numeral 21 indicates an auxiliary interlocking rod connected to the upper end of the T-shaped lever 12 with a pin 22, and the auxiliary interlocking rod 21 extends laterally along the back surface of the door 2 and is movable in its longitudinal direction. Therefore, the auxiliary interlocking rod 21 can be moved to each barb piece 13' by operating the handle 4.
When the vertical and horizontal interlocking rods 13, 14, 18 are moved so that 14', 18' engage with the safe body 1,
Interlocked with this, it horizontally reciprocates along its longitudinal direction.

As shown enlarged in FIGS. 3 and 4, an engaging portion 24 having an engaging surface 24a at one end is attached to the lower edge of the auxiliary interlocking rod 21.
A lock release holding surface 24b for holding the movable core 32 of the electromagnetic solenoid 31 in the retracted position is provided on the lower surface of the engaging portion 24 in a horizontal direction. It is formed to extend in a shape.

The electromagnetic solenoid 31 is provided with a movable core 32 which is always urged in the protruding direction by a spring 37 and is movable in and out. The movable iron core 32 has a large-diameter guide portion 33 fitted into the bush 35 and a locking member attached to the tip of the guide portion 33. A mating protrusion 34 is integrally formed, and the movable iron core 32 is connected to the engaging portion 24.
Each barb piece 13', 14',
With the auxiliary interlocking rod 21 moved so that the lever 18' engages with the safe body 1, the movable iron core 32 is moved by the spring 3.
7, the engaging protrusion 34 of the movable iron core 32 engages with the engaging surface 24a, and each barb piece 13',
14', 18' are prevented from moving in the direction of disengaging from the safe body 1, the auxiliary interlocking rod 21 is held immovably and locked, and when the electromagnetic solenoid 31 is energized, the movable iron core 32 Gabane 37
The engaging protrusion 34 moves backward against the force and engages the engaging surface 24.
a, and the lock is released.

Further, on the side surface of the auxiliary interlocking rod 21, a regulating body 25 made of a plate spring is provided on the opposite side of the engaging portion 24 with the movable iron core 32 in between, and the one end thereof is close to the engaging surface 24a. , is attached so as to extend along the longitudinal direction of the auxiliary interlocking rod 21, and the other end of the regulating body 25 is arranged such that one end of the regulating body 25 resists its own spring elastic force as an example of a spring means. movable iron core 3
The regulating body 25 has a flat surface that separates from the side surface of the auxiliary interlocking rod 21 toward the tip of the one end. The lock release holding surface 24b is formed with a restricting surface 25b extending substantially parallel to the lock release holding surface 24b of the engaging portion 24 on the lower surface of one end thereof.
It is formed so as to protrude toward the electromagnetic solenoid 31 side by a distance e a little more than that.

Note that the reference numeral 36 is a box incorporating a code number setting device, an electronic circuit, and the like.

In the above configuration, after unlocking (or before unlocking) the cylinder lock 5' in the locked state, the plurality of push button switches 9 provided on the front surface of the door 2 are activated in a preset order. When pressed, the electromagnetic solenoid 31 is energized, and the excitation causes the movable iron core 3 to move.
2 moves backward against the force of the spring 37, and the movable iron core 32
The distal end surface 34b of the engaging protrusion 34 in the regulating body 2
The lock is released by lowering below the regulating surface 25b of the regulating body 25, and at the same time, the contact between one end of the regulating body 25 and the engaging protrusion 34 of the movable iron core 32 is released, and one end of the regulating body 25 is released. Due to its own spring elastic force, the restricting surface 25b of the portion 25b engages with the engaging protrusion 34 in plan view, as shown by the dashed line in FIG.
Move to a position where it overlaps the upper end surface 34b of.

Then, even if the power supply to the electromagnetic solenoid 31 is cut off in this state, the movable core 32 only has its tip surface 34b abutting the regulating surface 25b of the regulating body 25, and the engaging portion of the auxiliary interlocking rod 21 Since the solenoid 31 is held in a position below 24, energizing the electromagnetic solenoid 31 for a very short time will
This means that the lock can be kept in the unlocked state.

Then, in the unlocked state, the handle 4
Rotate each interlocking rod 13, 14, 18,
When the lock pieces 13', 14', and 18' attached to these are moved to disengage from the safe body 1,
The auxiliary interlocking rod 21 also moves as shown by arrow D in FIG.
5b slides on the tip surface 34b of the engagement protrusion 34, and at the same time the regulating body 25 is removed from the tip surface 34b of the engagement protrusion 34, the engagement protrusion 34 is projected by the spring 37 by the distance e. This time, the distal end surface 34b of the engaging protrusion 34 comes into contact with the unlocking holding surface 24b of the engaging portion 24 of the auxiliary interlocking rod 21, and is also held in the unlocked state.

In this case, when the distal end surface 34b of the movable core 32 is in contact with the regulating surface 25b of the regulating body 25, no spring force is acting on the regulating body 25 and the movable core 32 is in a stable position. This makes it possible to reliably maintain the unlocked state by holding the regulator in the retracted position.
5 is located slightly below the unlocking holding surface 24b of the engaging portion 24 by a distance e, so that the engaging protrusion 34 is held in the retracted position by the regulating body 25. The lock release holding surface 24b of the engaging portion 24 can also reliably shift the engaging protrusion 34 to the retracted position.

Next, close the door 2 and rotate the handle 4 to engage each barb piece 13', 14', 18' with the safe body 1 via the vertical and horizontal interlocking rods 13, 14, 18. In conjunction with this, the auxiliary interlocking rod 21 moves as shown by the arrow in FIG.
With the distal end surface 34b in contact with the unlocking holding surface 24b of the engaging portion 24, the inclined surface 25a of the regulating body 25 abuts on the side surface of the engaging protrusion 34, so that the regulating body 25 One end is auxiliary interlocking rod 2
1 and deforms against its own elastic force, and eventually the lock release holding surface 24 of the engaging portion 24
When a comes off the tip surface 34b of the engagement protrusion 34,
The movable iron core 32 automatically protrudes under the force of the spring 37, and the side surface of the engagement protrusion 34 contacts the engagement surface 2 of the engagement portion 24.
4a, and the door 2 is locked.

Also in this case, one end of the regulating body 25 is connected to the engaging portion 24.
and the regulating surface 25 of the regulating body 25.
b is located slightly below the lock release holding surface 24b of the engaging portion 24 by the dimension e, which ensures that the engaging protrusion 34 protrudes from the retracted position and engages with the engaging surface 24a. Because it is held in
The transition from the unlocked state to the locked state can also be performed reliably.

What is shown in FIG. 6 is that the regulating body 25 is formed of a leaf spring as a spring means for biasing the regulating body 25.
This is another example in which the elastic force of the spring itself is used. In this example, a folded part is provided at one end of the regulating body 25 made of a plate spring. With this configuration, the movable iron core 32 Since the distal end surface 34b comes into contact with the regulating surface formed on the lower surface of both the one end portion and the folded portion of the regulating body 25, the movable iron core 3 does not have to increase the plate thickness of the regulating body 25.
There is an advantage that the regulating body 25 can be prevented from being torsionally deformed by the force of the spring 37 against the regulating body 25.

Moreover, FIGS. 7 and 8 show an embodiment in which the regulating body is formed in a lever type instead of a plate spring.

That is, a horizontal bracket 27 extending in the horizontal direction is provided on the auxiliary interlocking rod 21 on the opposite side of the engaging surface 24a with the movable iron core 32 interposed therebetween, and a lever-shaped regulating body 28 is provided in a substantially boat shape in a plan view. form,
The regulating body 28 is pivotally connected to the horizontal bracket 27 at the other end 28'' by a pin as an example of a fastening means, so that the regulating body 28 can be horizontally rotated, and one end 28' is attached to the other end 28''. The auxiliary interlocking rod 21
A helical spring 29 is provided as an example of a spring means for biasing in the lateral direction.

Also in this case, the regulating surface 28b of the regulating body 28
is located slightly below the lock release holding surface 24b of the engaging portion 24 in the auxiliary interlocking rod 21 by a dimension e, and the tip of the regulating body 28 is located below the helical spring 2.
9, one end portion 28' of the regulating body 28 is configured to overlap with the tip end surface of the movable iron core 32 when viewed from above.

In each of the above embodiments, the engaging portion 24 and the regulating bodies 25, 28, to which the movable core 32 of the electromagnetic solenoid 31 engages and disengages, are provided on the auxiliary interlocking rod 21 connected to the vertical interlocking rods 13, 14 and the horizontal interlocking rod 18. However, the "interlocking rod" mentioned in the scope of the practical registration claim
is integrally attached to the bar piece and moves directly in conjunction with the engagement and disengagement of the bar piece from the fixture body, or indirectly in conjunction with other members. Therefore, the engaging portion and the regulating body may be provided on any one of the vertical interlocking rods 13, 14 and the horizontal interlocking rod 18 in the embodiment.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view of a safe as an example of fixtures, Fig. 2 is a rear view of the door, Fig. 3 is an enlarged view of the main part of Fig. 2, and Fig. 4 is an enlarged view of the main part of Fig. 2. Third
Figures 5A, B, and C are diagrams showing the respective functions, Figure 6 is a diagram showing another embodiment, and Figure 7 is a plan view of the figure.
The figure shows still another embodiment, and FIG. 8 is a front view taken from FIG. 7. 1...Safe, 2...Door, 13, 14...Vertical interlocking rod, 18...Horizontal interlocking rod, 21...Auxiliary interlocking rod, 2
4... Engaging portion, 24a... Engaging surface, 24b... Lock release holding surface, 25, 28... Regulating body, 25
a, 28a... inclined surface, 25b, 28b... regulating surface, 31... electromagnetic solenoid, 32... movable core, 33... guide portion, 34b... tip surface of movable core.

Claims (1)

[Scope of utility model registration request] An interlocking rod 21 that reciprocates in the longitudinal direction in conjunction with the engagement and disengagement of the bar pieces 13', 14', and 18' with and from the fixture body 1 is provided on the back side of the door 2 in the fixture body 1 of a safe, etc. The rod 21 is provided with an engaging part 24 having an engaging surface 24a at one end, and on the back side of the door 2, it retreats against the spring 37 when energized and projects by the spring 37 when not energized. An electromagnetic solenoid 31 comprising a movable core 32 is connected to the movable core 3.
2 is provided to move in and out in a direction substantially perpendicular to the longitudinal direction of the interlocking rod 21, and its movable iron core 32 is
Engagement surface 24 of the engagement portion 24 in the interlocking rod 21
a, when the movable iron core 32 protrudes, it engages with the engagement surface 24a and moves the interlocking rod 21 to the bar pieces 13',
14', 18' so as to be immovably locked in the removal direction, and the lock release holding surface 24b is in contact with the engaging portion 24 of the interlocking rod 21, and the distal end surface 34b of the movable iron core 32 is in contact with the engaging portion 24 of the interlocking rod 21. In the electronic locking device formed so as to extend along the longitudinal direction of the interlocking rod 21 in a direction substantially perpendicular to the axis of the movable iron core 32, the interlocking rod 21 has the movable iron core 32 interposed therebetween. Regulating bodies 25 and 28 extending in the longitudinal direction of the interlocking rod 21 are provided on the opposite side of the lock release holding surface 24b in the engaging portion 24.
, one end thereof is the engagement surface 24a of the engagement portion 24.
The regulating bodies 25, 28
The other end of the regulating body 25 , 28 is connected to the movable iron core 32 with respect to the interlocking rod 21 .
The regulating bodies 25, 28 are attached to the regulating bodies 25, 28 so as to be movable in a direction substantially perpendicular to the axis of the regulating bodies 25, 28.
Regulating surfaces 25b, 2 extending substantially parallel to the lock release holding surface 24b of the engaging portion 24 along the longitudinal direction
8b, the regulating surfaces 25b, 28b protrude toward the electromagnetic solenoid 31 side from the lock release holding surface 24b, and the regulating bodies 25, 28
are provided with inclined surfaces 25a, 28a at one end thereof that abut against the side surface of the movable iron core 32, and are provided with inclined surfaces 25a, 28a at one end thereof.
An electronic locking device for a fixture such as a safe, characterized in that a spring means 29 is provided for biasing the movable iron core 32 in the direction of contacting the side surface of the movable iron core 32.