JPH0784823B2 - Electric lock for hinged door - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electric lock used for an entrance / exit door of a general house, a condominium such as a condominium, or a hotel, and more specifically, to the use or non-use of automatic locking. The present invention relates to an electric lock having a winning panic proof mechanism that can be switched between uses.

[Conventional technology and problems]

Locking devices for hinged doors are required to have various functions depending on the time.

Generally, a hinged door locking device is locked and unlocked by a thumb turn from the inside and a key from the outside, but there are cases where it is convenient to be automatically locked and where it is not automatically locked.

For example, if the person forgets to lock the door after closing it, it may be stolen, so it is desirable to lock the door at the same time as closing the door, and in the case of a hurry, it is convenient if the labor of locking can be omitted.

For this purpose, cylindrical keys with automatic locking function and hotel locks have already been put into practical use. Conversely, on the contrary, when there is a small occasion outside the room, for example, when going to get milk or newspapers or outside the room. If the user inadvertently closes the door completely when talking to the person, there is a risk that it will be locked out unless the key is held, and in such a case, a locking device that is not automatically locked is desired.

As described above, it would be convenient to have a dual-use locking device that can be used properly such that even one door is automatically locked when going out and is not automatically locked when going out a little.

At present, there is no practical dual-purpose type, and a method of suppressing the automatic locking function with a tool may be adopted, but it is not possible to fix or release the automatic locking function with a tool each time. It's inconvenient.

For this reason, a convenient dual-use locking device that can be easily switched between use and nonuse of automatic locking is desired.

Further, in case of emergency, it must be a locking device that can be unlocked and opened very easily and surely to escape from the room.

For example, when an emergency evacuation is required, such as in the event of a fire, there is no room to open the hinged door after operating the thumb turn to unlock it, and the lever provided on the hinged door is released to unlock it. A panic mechanism may be provided in the locking device so that the lever can be pulled to open the hinged door and escape.

However, the conventional panic proof mechanism operates only when the lever is turned in one direction, and does not work no matter how much force is applied when the lever is turned in the opposite direction. It is not enough to operate the link mechanism by itself, and it is necessary to make up for the shortage with spring force.If the panic roof mechanism increases friction resistance for some reason and the movement becomes unsmooth, there is a risk that it will not unlock. there were.

Therefore, there is a need for a panic mechanism that reliably unlocks the lever in any direction and smoothly unlocks in any case.

In addition, there are mechanical locking devices that unlock with a key from the outside and electric locks that are unlocked when a personal identification number is input from the outside.There are locking devices that can be used properly depending on the case by case. It is convenient if there is.

However, the electric lock having the above-described functions has a complicated structure and a large size, so that it has a drawback that it is difficult to incorporate it into a hinged door, which is a drawback of high cost.

The present invention solves these problems and provides an electric lock in which the electric lock having the above-mentioned functions is compactly housed in a small case.

[Means for solving problems]

According to the present invention, a locking / unlocking mechanism part, a panic proof mechanism part, and an electric unlocking mechanism part are configured in a case, and the locking / unlocking mechanism part is engaged with a stopper that tilts when a trigger bolt is retracted by a closing door and the tilting of the stopper. A slider that is released and moves in a biased direction, a cam plate that is biased to a locking angle and an unlocking angle, and that rotates to the locking angle in conjunction with the movement of the slider in the biasing direction, and the cam plate A card that engages with the dead bolt and that is projected by the rotation of the locking angle of the cam plate and is biased to the neutral position and is pushed by the rotation of the cam plate in the locking direction to engage with the dead bolt. An inner retractor that includes a lever and has a panic proof mechanism that moves by rotation of the inner hub, and a panic slider that moves by receiving a pressing force from the inner retractor. The electric unlocking mechanism section includes a turning lever that turns in conjunction with the movement of the panic rider, and a connecting lever that interlocks with the turning of the turning lever to push the cam plate at an unlocking angle. Is a locking block that engages and disengages with the outer retractor by actuation of a solenoid or the rotation of the guard lever, and when the locking block is disengaged, moves by the rotation of the outer hub and presses the panic slider. It is equipped with an outer retractor that can be moved.

[Work]

With the above configuration, the electric lock operates as follows.

(1) Automatic locking When the door is closed, the trigger bolt protruding from the hinge door is retracted and the stopper is tilted, the slider is disengaged from the stopper and moves in the biased direction, and the cam plate that interlocks with the slider moves. Rotate to the locking angle.

The rotation of the locking angle of the cam plate causes the dead bolt to project to lock the hinged door, and the guard lever pushed by the cover plate engages with the projecting dead bolt to lock the door.

(2) Unlocking with a key, thumb turn, etc. When the cam plate is rotated to the unlocking angle with a key,
The guard lever released from the cam plate returns to the neutral position to release the engagement with the dead bolt and pushes the locking block, and the engagement between the locking block and the outer retractor is released.

The dead bolt sinks depending on the unlocking angle of the cam plate.

Further, the slider that interlocks with the cam plate returns to the old position and engages with the stopper again.

Then, when the door is opened, the trigger bolt is projected and the automatic locking is possible.

(3) Suppression of automatic locking function When the dead bolt is prevented from protruding with your finger and the trigger bolt is pushed and retracted beyond the retracted amount when the door is opened, the trigger bolt engages the stopper and the stopper acts as a slider. To keep the engaged state of the slider,
The cam plate and dead bolt are kept unlocked.

Even if the door is closed in this state, the trigger bolt does not move, so it is not automatically locked.

(4) Releasing suppression of automatic locking function When the cam plate is rotated in the unlocking direction with a key or thumb turn, the slider moves, the stopper that hits the slider tilts and the trigger bolt disengages, triggering The bolt protrudes and the automatic locking function is restored.

(5) Unlocking by panic proof When the lever handle is rotated either clockwise or counterclockwise from the indoor side, the inner hub moves the inner retractor, and the panic slider pushed by the inner retractor moves. Moving in the same direction, the rotating lever pivotally attached to the panic slider rotates, the cam plate rotates in the unlocking direction via the connecting lever, and the guard lever releases the engagement with the dead bolt and dead. The bolt retracts as the cam plate rotates, and the hinged door is unlocked.

(6) Electrical unlocking When the solenoid is demagnetized, the locking king block engages the outer retractor and the outer retractor is immovable, so the outer hub does not rotate and is not unlocked. , When the solenoid is excited, the engagement between the locking block and the outer retractor is released, and the outer hub can be rotated by the lever outside the room.When the outer hub is rotated, the outer retractor moves and the panic slider of the panic proof mechanism is rotated. Press to move.

After that, it is unlocked by the same operation as unlocking by panic proof.

〔Example〕

 Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a front view of the locking / unlocking mechanism portion A in the opened state, and reference numeral 1 is a case embedded in the end face of the hinged door D.
A trigger bolt insertion hole 2 and a dead bolt insertion hole 3 are formed in the front surface (left side in the drawing) of the case 1, and a trigger bolt 4 is fitted in the trigger bolt insertion hole 2 so as to be retractable.

The trigger bolt 4, as shown in FIGS. 12 and 13,
A shoulder 4a having a vertical surface is formed on the left side of the lower surface, and V is formed on the upper surface.
A V-shaped locking groove 4b is engraved.

And, a spring receiver 4c having a vertical surface is provided on the right side of the lower surface.

An L-shaped spring bearing 5 is mounted on the inner surface of the case 1, and a spring 6 is mounted between the spring bearings 5 and 4c.

Therefore, the trigger bolt is urged toward the left side, and the shoulder portion 4a of the trigger bolt 4 is in contact with the door side plate 7.

Above the trigger bolt 4, a stopper 9 is rotatably pivotally attached to a pin 8 planted on the inner wall of the case 1, and is urged clockwise by a spring (not shown).

The stopper 9 has a protrusion 9a below, and the trigger bolt 4 comes into contact with the protrusion 9a as many times as the trigger bolt 4 retracts (moves to the right), and the stopper 9 rotates counterclockwise.

When the trigger bolt 4 is further retracted, the protrusion 9a is engaged with the engaging groove.
It is fitted into 4b, and the stopper 9 is prevented from rotating counterclockwise.

Above the stopper 9, there is a recess that engages with the stopper 9.
A slider 10 having 10a is arranged.

As shown in FIGS. 16 and 17, the slider 10 is provided with a hole 11 with a bottom 11a in the longitudinal direction, a long hole 12 is formed at a right angle to the hole 11, and a protrusion 13 protruding on both side surfaces. Is projected.

Then, the rack 14 is provided on the lower surface.

The protrusion 13 is fitted in a long hole 15 formed in the case 1, and a pin 16 implanted in the case is fitted in a long hole 12 of the slider 10.

Therefore, the slider 10 can slide in the left-right direction with respect to the case 1.

A spring 17 is attached between the bottom 11a of the hole 11 of the slider 10 and the pin 16, and the slider 10 is biased rightward.

Reference numeral 18 is a cam plate pivotally mounted on the case 1 and rotated by a thumb turn or a key, and provided with a projection 19, a pinion 20 meshing with the rack 14, and a drive piece 21 on the outer circumference.

A pin 22 is fixed to the driving piece 21, and one end of a spring 23 is wound around the pin 22.

The other end of the spring 23 is wound around a pin 24 provided on the inner surface of the case 1.

The dead bolt 25 is fitted into the dead bolt insertion hole 3 of the case 1, and the shaft 26 fitted into the hole provided in the dead bolt 25 and projecting from both ends of the dead bolt 25 is inserted into the long hole 27 provided in the case 1. It is fitted loosely.

Therefore, the dead bolt 25 can slide in the left-right direction with respect to the case 1.

The dead bolt 25 has a groove 28 that engages with the drive piece 21,
A tapered portion 29 is formed at the end of the groove 28 on the opening side.

A step portion 30 is provided on the upper surface of the dead bolt 25, and a pin 31 fixed to the case 1 and a guard lever 32 are provided above the step portion 30.
Is pivotally attached.

As shown in FIGS. 14 and 15, the guard lever 32 has a corner portion.
It has a lever 33 having a 33a and a lever 34 protruding in a direction substantially opposite to the lever 33, and a spring engaging groove 35 is formed on the side surface.

A spring 36 is fitted in the spring engagement groove 35 to stabilize the guard lever 32 in the neutral position shown in FIG.

The lower half of FIG. 5 shows a front view of the panic proof mechanism B, and the inner hub 37 rotated by a lever or the like operated from the indoor side pivotally attached to the case 1 is on both sides with respect to the rotation center. Collar portions 38A, 38B are provided in the.

As shown in FIG. 11, the outer hub 39 is adjacent to the inner hub 37.
Is provided in the case 1, but the outer hub 39 is rotated by a lever or the like provided on the outside of the hinged door, and the inner hub 37 and the outer hub 39 are independently rotated. is there.

An outer retractor 42 is disposed adjacent to an inner retractor having vertical walls 40A, 40B that abut the collars 38A, 38B of the inner hub 37.

The inner retractor 41 and the outer retractor 42 are symmetrical, and as shown in FIG.
Pin 43 is installed on the inner retractor 41.
It is different in that it does not have, but other structures are the same.

The inner hub 37 and the inner retractor 41 are constituent elements of the panic plate mechanism unit B, while the outer hub 39 and the outer retractor 42 constitute an electric unlocking mechanism described later.

Three legs 44 project from the inner retractor 41, and the legs 44 loosely fit into a long groove (not shown) provided in the case 1 to guide the lateral movement of the inner retractor 41.

The inner retractor 41 has vertical walls 40A and 40B standing upright from the right edge and a vertical wall 45 at the top.

The vertical wall 45 has a semi-circular recess 45a formed on the end surface.
A latch bolt 46 is inserted into the latch bolt 46, and a snap ring 47 is fitted to a small diameter portion 46a provided on the latch bolt 46.

A spring 50 for winding the latch bolt 46 is inserted between the head 48 of the latch bolt 46 and a spring receiver 49 fixed to the inner wall surface of the case 1, and the latch bolt is biased by the spring 50 toward the head 48. 46 is the inner retractor via the snap ring 47
Push 41 to the left (see FIG. 5).

Springs 51A and 51B are provided between the vertical walls 40A and 40B and the case 1.
And the inner retractor 4 is pressed to the left.

Above the inner retractor 41, a panic slider 52 shown in FIGS. 19 and 20 is provided so as to be movable in the left-right direction.

The panic slider 52 has elongated holes 53 and 54, has a protruding piece 55 capable of contacting the vertical wall 45 of the inner retractor 41 on the lower end surface, and has a shaft portion 56 on the upper portion.

A pin 58 provided upright on a rotating lever 57 is fitted into the elongated hole 53, and the pin 58 is pivotally attached to the case 1 so as to be rotatable.

The rotating lever 57 has a long hole 59 in the center and a shaft portion 60 on the free end side. The shaft portion 56 of the panic slider 52 is fitted into the long hole 59, and the shaft portion 60 has one end of the connecting lever 61. Long hole 62 provided in
Is loosely fitted, and the other end of the connecting lever 61 is pivotally attached to the pin 22 of the drive piece 21.

The electric unlocking portion C is, as shown in FIGS. 7 and 11, an outer hub 39 which is rotated by a lever or the like operated from the outside of the room.
Is adjacent to the inner hub 37, and the collar portions 38A and 38B are provided on both sides of the center of rotation of the outer hub 39, similarly to the inner hub 37.

The outer retractor 42 having the straight walls 40A, 40B that abut the collars 38A, 38B has a vertical wall 45, and the latch bolt 46 is inserted in a semicircular recess 45a formed in the end surface of the vertical wall 45. It

Springs 63A, 63B are mounted between the vertical walls 40A, 40B of the outer retractor 42 and the case 1 to urge the outer retractor 42 to the left.

The solenoid is fixed under the case 1, and the solenoid 64
21, one end of the tension spring 65 is supported, and the other end of the tension spring 65 is supported by a locking plate 66 that is vertically movable in the case 1. 66 is biased downward.

The locking block 66 has an inverted L-shape, and the upper horizontal wall 66a has a protrusion 67a at the upper end of the slide plate.
67 is attached, and the vertical wall 66b of the locking plate 66 is provided with a rectangular long hole 68 as shown in FIG.

A locking block 69 shown in FIG. 23 is inserted into the long hole 68, and the locking block 69 is a support plate fixed to the tip.
The locking plate 66 can be held by the 70 and can slide in the elongated hole 68 in the vertical direction.

The recessed groove 71 provided at the lower end of the locking block 69 can be fitted into and removed from the pin 43 provided on the outer retractor 42 when the outer retractor 42 is located on the left side.

Then, when the solenoid 64 is excited, the slide plate 67 integrated with the locking plate 66 rises against the spring 65, but also when the guard lever 32 is pushed by the protrusion 19 of the cam plate 18. The protrusion 67a is pushed upward and rises.

Further, as the locking plate 66 moves up, the locking block 69 moves up and the engagement between the pin 43 and the groove 71 is released.

Each operation of the electric lock configured as described above will be described.

(1) Automatic locking As shown in FIG. 1, when the door is closed with the trigger bolt 4 protruding and the dead bolt 25 retracted, the trigger bolt 4 hits the striker S and is pushed into the case 1, and the trigger bolt 4 The right end is the protrusion of the stopper 9.
Upon hitting 9a, the stopper 9 rotates counterclockwise, and the engagement between the stopper 9 and the recess 10a of the slider 10 is released,
The slider 10 moves to the right by the pressing force of the spring 17, the cam plate 18 having the pinio 20 that meshes with the rack 14 rotates clockwise to the locking angle, and the drive piece 21 moves the dead bolt 25 to the left. It moves to the left while pressing and is pressed against the left end of movement by the spring 23, and the dead bolt 25 enters into the fitting hole provided in the striker S.

On the other hand, the tip 33a of the lever 33 of the guard lever 32 tilted counterclockwise by the lever 34 pushed by the driving piece 21 engages with the step portion 30 of the dead bolt 25, and the dead bolt 25 is locked in the locked state. .

Therefore, only by closing the hinged door, the automatic locking by the powerful dead bolt is completed.

(2) Unlocking When the cam plate 18 is rotated counterclockwise by the key or thumb turn, as shown in FIG. 2, the slider 10 having the rack 14 that meshes with the pinion 20 moves to the left side and the cam plate 18 moves. The drive piece 21 moves to the right and the lever 34
Further away, the guard lever 32 is returned to the neutral position by the spring 36, the tip 33a of the lever 33 releases the engagement with the step portion 30 of the dead bolt 25, and the projection 67 of the slide plate 67 is released.
The a is pushed upward to release the engagement between the recess 71 of the locking block 69 and the pin 43 of the outer retractor 42, and the outer retractor 42 becomes movable.

Thus, the dead bolt 25 is retracted into the case 1 by the right movement of the drive piece 21.

On the other hand, the recess 10a of the slider 10 has arrived on the stopper 9, and the stopper 9 is biased clockwise by the spring.
Enters the recess 10a, locks the slider 10, and returns to the unlocked state shown in FIG.

(3) Suppression of automatic locking As shown in FIG. 3, the tip of the dead bolt 25 is held down with a finger to prevent it from projecting, and when the trigger bolt 4 is pushed with a finger beyond the retracted amount when the door is closed, the trigger bolt 4 is pushed. The protruding portion 9a of the stopper 9 is fitted into the locking groove 4b of 1 to lock the trigger bolt 4.

The trigger bolt 4 is biased to the right by the spring 6, but the protrusion 9a and the locking groove 4b are engaged with each other, so that the trigger bolt 4 does not protrude even when the finger is released from the trigger bolt 4. Instead, the stopper 9 also remains biased clockwise by the spring 6, and the stopper 9 and slider 10
The engagement with the recess 10a is maintained.

Even if the door is closed in this state, the slider 10 and slider
The cam plate 18 that meshes with the gear 10 is in a stopped state, the dead bolt 25 does not project, and the door is held in the unlocked state.

(4) Releasing the restraint of the automatic locking function Next, in order to release the restraint of the automatic locking function, the cam plate 18 is rotated in the unlocking direction by the key or thumb turn, and the slider 10 moves to the left side and the stopper 9 The trigger bolt 4 which has been disengaged by tilting the stopper 9 counterclockwise to disengage the protrusion 9a from the engagement groove 4b
Is moved to the left by the pressing force of the spring 6 and protrudes from the case 1 (see FIG. 4).

When the rotational force generated by the key or thumb turn is removed, the state returns to the state shown in FIG.

(5) Emergency unlocking by panic proof As shown in Fig. 5, the dead bolt 25 is the striker S
The inner hub 37 is rotated by a lever or the like operated from the indoor side in a state in which the inner hub 37 is locked by being fitted in.

When the inner hub 37 is rotated clockwise, the collar portion 38A presses the vertical wall 40A, and the inner retractor 41 moves right against the springs 51A and 51B.

When the inner hub 37 is rotated counterclockwise, the collar portion 38B pushes the vertical wall 40B to move the inner retractor 41 to the right as well.

Therefore, the inner hub 37 can move the inner retractor 41 to the right regardless of which direction it is rotated, which is convenient for an emergency escaper to operate soon.

When the inner retractor 41 moves rightward, the latch bolt 46 moves rightward together with the snap ring 47 pushed by the vertical wall 45, and the head 48 separates from the hole of the striker S.

On the other hand, the protruding piece of the panic slider that abuts the vertical wall 45.
55 is pushed by the vertical wall 45 and moves to the right, and the pivot lever 57 is moved to the pin 58 by the right movement of the shaft portion 56 of the panic slider 52.
Is rotated clockwise about the fulcrum, and the connecting plate 61 having the long hole 62 that engages with the shaft portion 60 on the free end side of the rotating lever 57 presses the drive piece 21 to the right, so that the cam plate 18 is reversed. The dead bolt 25 having the concave groove 28 that engages with the drive piece 21 that moves clockwise while rotating clockwise is retracted by being retracted into the hinged door D and separated from the striker S (see FIG. 6). .

Thus, when the lever on the indoor side that has rotated the inner hub 37 is pulled toward you, the unlocked door D is opened and the emergency escape is possible.

When the lever is released, the inner retractor 41 pushed by the springs 51A and 51B moves leftward and returns to the old position, and the inner hub 37 pushed by the vertical wall 40A also returns to the state shown in FIG. .

The operation of the locking / unlocking mechanism A is the same as the unlocking operation in the item (2).

(6) Unlocking by electric unlocking mechanism When the solenoid 64 is excited for a certain time (for example, 7 to 8 seconds) from the locked state as shown in FIG. It rises against the tension spring 65.

The slide plate 67 rises together with the locking plate 66, the locking block 69 rises, and the concave groove 71 separates from the pin 43 of the outer retractor 42 (see FIG. 8).

When the outer hub 39 is rotated by a lever operated from the outside during such a state, as shown in FIG. 9, the outer hub 39 is rotated.
The collar 40A of 39 presses the vertical wall 38A, and the outer retractor 42
Moves to the right against the springs 63A and 63B.

As the outer retractor 39 moves to the right, the vertical wall 45 moves the latch bolt 46 to the right via the snap ring 47, the projection 55 is pushed to the right, and the panic slider 52 moves to the right.

The operation from the rightward movement of the panic slider 52 to the unlocking is the same as the operation of the panic proof mechanism.

After unlocking the hinged door and releasing the lever, the springs 63A, 63
The outer retractor 42 is returned to the left side by being pressed by B, but the inclined surface provided at the lower end of the locking block 69.
The pin 43 hits 69a and pushes up the locking block 69.

Since the locking block 69 can move up and down with respect to the locking plate 66, it moves up and the pin 43 fits into the groove 71 (see FIG. 10).

Thus, the electric unlocking mechanism C returns to the locked state again.

[Effect]

 The present invention has the following effects.

(A) It can be used as an automatic locking device, or can be used as a locking device without automatic locking.

Then, the switching can be easily performed without using a tool.

(B) Since the panic proof mechanism that operates extremely smoothly and reliably is provided, safety in an emergency is guaranteed.

(C) Since it is locked by the dead bolt, the breaking strength is large and the locking reliability is high.

Moreover, since the lock can be unlocked by the solenoid despite the locking by the dead bolt, the electric lock can be made compact.

Since it operates with a small solenoid, it has the effect of saving energy, and a dry battery can be used as a power source.

(D) The electro-unlocking device also serves as a panic-proof mechanism for the most part, and since it is housed compactly in the case as a whole, it can be easily installed in a hinged door and the cost is low.

[Brief description of drawings]

1 to 23 show an embodiment of the present invention, FIG. 1 is a front view of a locking / unlocking mechanism section in a door open state, FIG. 2 is a front view of a locking / unlocking mechanism section in a locked state, and FIG. Is a front view of the locking / unlocking mechanism section showing the outline of the automatic locking function suppression, FIG. 4 is a front view of the locking / unlocking mechanism section in which the automatic locking function suppression is released, and FIG. 5 is a front view of the panic-proof mechanism section in the locked state. FIG. 6 is a front view of the panic proof mechanism section in the unlocked state, FIG. 7 is a front view of the electric unlock mechanism section in the locked state, and FIG. 8 is a front view of the electric unlock mechanism section when energized. 9 is a front view of the electric unlocking mechanism during the unlocking operation, FIG. 10 is a front view of the electric unlocking mechanism after the end of energization, FIG. 11 is a perspective view of the hub and the retractor, and FIG. Is a plan view of the trigger bolt, FIG. 13 is a front view of the same as above, FIG. 14 is a front view of a guard lever, Fig. 15 is a bottom view of the above, Fig. 16 is a front view of the slider, Fig. 17 is a side view of the same, Fig. 18 is a front view of the retractor, Fig. 19 is a front view of the panic slider, and Fig. 20 is 21 is a side view of the locking plate and the slide plate, FIG. 22 is a side view of the locking plate, and FIG. 23 is a front view of the locking block. D: hinged door, S: striker, A: locking / unlocking mechanism, B: panic proof mechanism, C: electric unlocking mechanism, 1 ... case, 4 ... trigger bolt, 6 ... spring , 9 ... Stopper, 9a ... Protrusion, 10 ... Slider, 14 ... Rack, 18 ... Cam plate, 20 ... Pinion, 21 ... Drive piece, 25 ... Dead bolt, 30 ... Step section ,
32 …… Guard lever, 36 …… Spring, 37 …… Inner hub, 39
...... Outer hub, 41 …… Inner retractor, 42 …… Outer retractor, 45 …… Vertical wall, 46 …… Latch bolt, 52…
… Panic slider, 55 …… Projection piece, 57 …… Rotating lever, 61 …… Coupling lever, 64 …… Solenoid, 66 …… Locking plate, 67 …… Slide plate, 69 …… Locking block, 71 …… Concave groove.

Claims (1)

[Claims] 1. A locking / unlocking mechanism unit, a panic proof mechanism unit, and an electric unlocking mechanism unit. The locking / unlocking mechanism unit is a stopper that tilts when the trigger bolt retracts due to a closing door, and the engagement is released by tilting the stopper. The slider that moves in the biased direction, the cam plate that is biased to the locking angle and the unlocking angle, and that rotates to the locking angle in conjunction with the movement of the slider in the biasing direction; A dead lever that engages and protrudes by the rotation of the locking angle of the cam plate and a guard lever that is biased to a neutral position and is pushed by the rotation of the cam plate in the locking direction to engage with the dead bolt. The panic proof mechanism includes an inner retractor that moves by rotation of the inner hub, and a panic slider that moves by receiving a pressing force from the inner retractor. An electric unlocking mechanism section is provided with a turning lever that turns in association with the movement of the panic slider and a connecting lever that pushes the cam plate in an unlocking angle in conjunction with the turning of the turning lever. Is a locking block that engages and disengages with the outer retractor by actuation of a solenoid or rotation of the guard lever, and when the engagement of the locking block is released, the outer hub rotates to move and press the panic slider. An electric lock for hinged doors, which is equipped with an outer retractor that can be moved by moving.