JP3443212B2 - Locking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device in which a mechanical lock / unlock mechanism is integrally provided on a locking device of a rocker that is electrically locked and unlocked.

[0002]

2. Description of the Related Art FIG. 11 is a perspective view showing an example of a locker lock device that is electrically locked and unlocked.
One end of the door D is pivotally attached to one side of the plurality of storage chambers B that open to the front of the door, and is opened and closed by a handle E provided at the other end of the front of the door D. Both ends of a U-shaped engaging rod R are fixed to the back surface of the other end of the door D, and the locker body A is rotatably provided in the rocker body A and is engaged when the door D is closed. An electric lock (not shown) provided with a latch that is pushed by the connecting rod R to rotate to engage with the engaging rod R and a solenoid that locks and unlocks the latch in the engaged state is provided. (Refer to the official gazette such as Japanese Utility Model Publication No. 2-40875).

In order to unlock the electric lock, when a personal identification number is input by a ten-key switch of the operation unit F provided on the front surface of the rocker body A, the plunger of the solenoid operates in the direction to release the latch lock, Latch is engagement rod R
It becomes possible to rotate in the direction of releasing the engagement with. When the door D is opened in this unlocked state, the engaging rod R that moves in the door opening direction is released from the latch.

In the case where the locker body A cannot be unlocked due to a power failure or an electric system failure,
The emergency key is mechanically unlocked by the parent key owned by the administrator.
In the emergency unlocking operation, when the master key is inserted into the cylinder lock C provided on the front surface of the rocker main body A and the rotary operation is performed at the unlocking angle, the tongue fixed to the rear end of the rotor of the cylinder lock C is rotated. It moves to push the plunger of the solenoid, the latch is released by the movement of the plunger, and the emergency unlock is performed.

FIG. 12 is a perspective view of an essential part of an electric lock with an emergency unlocking mechanism, which is different from the above-mentioned publication. A recess H into which the engaging rod R is inserted when the door is closed is provided on the front surface (surface on the door side) of the electric lock case G, and a latch J pivotally attached to the inside of the case G is provided. Is provided with an engagement notch K opening to the outer peripheral surface. When the latch J is at the unlocking angle, the opening of the engagement notch K coincides with the recess H.

When the door is closed in this unlocked state, the engaging rod R is inserted deep into the engaging notch K via the recess H, and the latch J pushed by the engaging rod R is shown in FIG. It rotates to the position and engages with the engagement rod R. Engaging rod R
The latch J engaged with is locked or unlocked by the operation of the solenoid S.

The emergency unlocking mechanism shown in FIG. 12 is of a type in which the doors D of the rocker storage chambers arranged in the vertical direction are simultaneously unlocked by operating one cylinder lock C. The tongue T is fixed to the connecting shaft L connected to the rear end of the rotor. The lift plate M, which moves up and down by the rotation of the tongue T, is provided with a notch concave portion N at a position corresponding to the case G of the electric locks arranged vertically, and the drive lever pivotally mounted at one end in the case G. The middle part of P is pivotally attached to the plunger of the solenoid S, and the other end is engaged in the notch recess N.

Therefore, when the parent key owned by the manager is inserted into the key hole of the cylinder lock C and rotated in the unlocking direction, the tongue T rotates counterclockwise in FIG.
Goes down. When the lift plate M is lowered, the drive lever P engaged with the notch concave portion N is rotated to push the plunger of the solenoid S, and the plunger is moved in a direction to release the latch of the latch J, so that the plunger is moved up and down. The arranged electric locks are emergency unlocked all at once.

The emergency unlocking mechanism shown in FIG. 13 is of a type in which each electric lock is provided with a cylinder lock C, and when the master key inserted into the keyhole of the cylinder lock C is rotated in the unlocking direction, A pusher Q connected to the rear end of the rotor pushes a lever V, which has one end pivotally mounted in the lock case G and the other end protruding from the case G upward, and the lever V pushes a drive lever P. The electric lock is emergency unlocked.

[0010]

In the above-mentioned three types of electric locks with the emergency unlocking mechanism, the plunger of the solenoid S is mechanically operated by utilizing the turning force of the parent key inserted in the cylinder lock. However, there were the following problems. (1) It is necessary to hold the plunger of the solenoid S in the locked position that locks the latch J and the unlocked position that unlocks the latch J. Generally, a bipolar stable latching solenoid is used, but it is an emergency unlocking. At times, the plunger that is stable in the locked position is forcibly pushed to the unlocked position, so that an unreasonable force is applied to the solenoid S.

(2) Since the force for rotating the parent key is transmitted to the plunger via a plurality of parts and converted into the force for driving the plunger which is stable in the locked position, the rotation of the parent key is performed. There is a drawback that the operation is heavy. (3) Since the electric lock with the emergency unlocking mechanism was manufactured separately for the electric lock and the emergency unlocking mechanism, there was a problem that it took a considerable amount of time and man-hours to assemble the locker body. , There was no rocker lock device that compactly integrated an electric lock and an emergency unlock mechanism. The present invention is intended to solve such problems.

[0012]

In order to achieve the above object, the lock device according to claim 1 of the present invention is rotatably provided in a lock case, and the back surface of the door is locked at an angle for locking and an angle for unlocking. A latch for locking and unlocking an engaging rod provided on the lock case, a lock lever rotatably provided in the lock case, and biased in a direction to engage the latch at a lock angle, A solenoid operated by a locking and unlocking signal from a control unit, a drive lever pivotally mounted in the lock case, and urging the locking lever in the unlocking direction by the operation of the solenoid in the unlocking direction, met lock device and a cylinder lock provided on a front surface of the lock casing, supported on the drive lever
The shaft is inserted, and the lower end of the locking lever is the support shaft.
One end of a spring, which is pivotally attached to the
It is locked to the drive lever and the other end is locked to the locking lever.
The lock lever is biased in the direction to engage the latch.
When the emergency unlock is performed, the keyhole of the cylinder lock
When the key inserted in is rotated, the upper end of the locking lever
An emergency unlocking mechanism that pushes the
Is, when the emergency unlocking is carried out, by the key inserted into the keyhole of the cylinder lock is rotated, the locking lever is rotated, the external force to the drive lever and the solenoid The locking step portion of the locking lever is separated from the engagement step portion of the latch without being added. The lock device according to claim 2 is the lock device according to claim 1, wherein the emergency unlocking mechanism is provided on a front surface of the lock case.
The cylinder lock and the rotor of the cylinder lock.
And a cam having a cam groove on its outer peripheral surface, and
Is provided so as to be movable along the slidable wall and engaged with the cam groove.
The projection to be inserted and the drive projection that can be brought into and out of contact with the locking lever.
And the cam is rotated in the unlocking direction of the cylinder lock.
The driving projection pushes the locking lever in the opposite direction.
And a slider that operates .

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A specific example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a lock device for locking and unlocking a rocker door, and FIG. 2 is a perspective view of the lock device. FIG. 3 is a side view of the lock device in a locked state, and FIG. 10 is a front view of a home delivery locker A ₁ to which the lock device of the locker of the present invention is attached. Delivery rocker A _1, as shown in FIG. 10, multi <br/> several stages, the surface of the plurality of rows each article hangar arranged in (FIG. 10 shows only a single row), one end of the rocker door D ( left) is pivotally mounted, the rocker to the other end of the door D, the handle E is attached to a surface, opposite ends of the engaging rod R of the U-shape is fixed to the rear surface, engaging the rocker body of the delivery rocker a ₁ A locker locking device (not shown) that engages and disengages with the coupling rod R is provided.

The delivery locker A ₁ is provided with an operation unit F for inputting a personal identification number on a touch panel.
Inside ₁ is provided a control unit (not shown) for instructing a locking device that electrically locks and unlocks the engagement rod R of the rocker door D. As shown in FIG. 1, the rocker locking device includes a metal substrate 1, a central case 2 molded from a synthetic resin material, and a metal support plate 3 as a case.

In the central case 2, a contact surface 4 with which the substrate 1 abuts on the back surface side in FIG. 1 and projections 5 protruding from the back surface are formed on the upper and lower parts of the contact surface 4, and the contact surface 4 is formed. The upper and lower ends of the substrate 1 that abuts on are positioned and supported by the protrusions 5. The contact surface 4 is formed with a housing recess 6 for housing a drive lever 28, a locking lever 32, and a latch 37, which will be described later. U provided on the rocker door D on the side surface of the central case 2.
A recess 7 is formed that does not prevent the insertion of the V-shaped engaging rod R (see FIG. 1).

On the surface of the central case 2, screw holes 8, 9,
A protrusion having 10 and 11 is formed, and an opening 12 penetrating the accommodation recess 6 is provided on the right side of the central case 2.
The screw holes 10 and 11 are connected to the circular recesses 10a and 11a formed on the bottom wall of the housing recess 6 (see FIG. 1). A limit switch 13, which is a sensor for unlocking confirmation, is mounted on the front surface of the central case 2 in the vicinity of the opening 12, and a limit switch 14, which is a sensor for locking confirmation, is mounted on the back surface of the central case 2 (see FIG. 7). ) Is attached.

The board 1 is provided with a mounting seat 15 projecting upward from the upper end surface thereof, and the mounting seat 15 has a hole 1 for screw insertion.
6 is provided, a mounting seat 17 protruding downward from the lower end surface of the substrate 1 is extended, and the mounting seat 17 has a hole 1 for screw insertion.
8 is provided, and the locking device is mounted in the casing of the rocker by screws (not shown) inserted through the holes 16 and 18 for screw insertion. The board 1 is provided with holes 19 and 20 at positions corresponding to the screw holes 10 and 11 of the central case 2, and an arcuate hole 21 concentric with the hole 19 is provided in the vicinity of the hole 19, so that A recess 22 corresponding to the recess 7 is provided (see FIG. 1).

One end of the cylindrical support shaft 23 is engaged with the circular recess 10a opening in the accommodation recess 6 of the central case 2, and the support shaft 2
The small diameter portion 23a formed at the other end of 3 is fitted into the hole 19 of the substrate 1, and the screw 57 inserted into the hole 19 and the support shaft 23 is screwed into the screw hole 10. One end of the cylindrical support shaft 24 is engaged with the circular recess 11a that opens into the housing recess 6 of the central case 2, and the small diameter portion 24a formed at the other end of the support shaft 24 has the small diameter portion 24a.
The screw 58 inserted into the hole 20 and inserted into the hole 20 and the support shaft 24 is screwed into the screw hole 11.

A slit 26 is provided at the tip of the plunger 25a of the latching solenoid 25 fixed to the surface of the substrate 1, and a pin 27 penetrating the slit 26 is provided. The drive lever 28 inserted into the slit 26 has a hole 29 into which the support shaft 24 is inserted and a long groove 3 into which the pin 27 is inserted.
0, and a drive protrusion 31 protruding upward from the outer peripheral surface is provided (see FIG. 1).

The lock lever 32, the lower end of which is pivotally attached to the support shaft 24, has a driven wall 33 standing upright from the left side surface and a driven projection 34 which is bent upright from the upper end and stands up.
A locking step portion 35 is formed at the upper end of 3 (see FIG. 1). One end 36 b of the spring 36 which is wound support shaft 24 wound is engaged with the drive lever 28, the other end 36 a is locked to the locking lever 32 (see FIG. 7). Therefore, the locking lever 32 is
It is urged counterclockwise in FIG. 7 about the support shaft 24 as a fulcrum.

The latch 37 has a hole 3 into which the support shaft 23 is inserted.
8, an engagement notch 39 opening to the outer peripheral surface, and an engagement step 40 formed on the outer peripheral surface. Small hole 42 of the latch 37
The other end 41b of the spring 41 whose one end 41a is locked to
Are locked in the small holes 43 provided in the substrate 1 (see FIGS. 1 and 7). Therefore, the latch 37 is in the locked position of FIG.
In the locked position, the opening of the engagement notch 39 is stabilized at the angle in which the recess 22 is located.

The support plate 3 is provided with a cylinder lock fixing wall 44 which is bent at a right angle from the left end in FIG. 1, and a reinforcing wall 44a which is bent at a right angle at the end of the cylinder lock fixing wall 44.
Is provided. The support plate 3 includes screw holes 8 of the central case 2,
It is fixed to the surface of the central case 2 by a screw 59 that is screwed into the screw 9. A cylinder lock 45 is provided on the cylinder lock fixing wall 44.
And a cylinder lock case 47 with a built-in indicator lamp 46
It is fixed by screws 48 (see FIG. 5).

In the cylinder lock 45, the keyhole 49 is exposed on the surface of the cylinder lock case 47 (see FIG. 6), and the cylinder lock 4
To the rotor 45a of No. 5, a cam 50 having a spiral cam groove 51 formed on a cylindrical outer peripheral surface is attached (see FIG. 3). A sliding wall 52 that bends at a right angle from the upper end of the support plate 3.
In addition, a slider 53 is movably provided.

The slider 53 is provided with a projection 54 that engages with the cam groove 51 and an arm 55 that obliquely projects from the lower surface.
A drive protrusion 56 is provided at the tip of the arm 55. Therefore, when the key K (see FIG. 2) inserted in the keyhole 49 is rotated,
The slider 53 moves along the sliding wall 52,
6 comes into contact with and separates from the driven projection 34 protruding from the opening 12.

As shown in FIGS. 2 and 3, the locker device of the rocker constructed as described above has the electric locking / unlocking mechanism and the mechanical emergency unlocking mechanism all integrally assembled. As in the conventional case, there is no need to attach or adjust other parts when assembling to the rocker. Therefore, not only the management at the stage of manufacturing and temporary storage is easy, but also the entire locking device of the rocker is compact, and the mounting seats 15 and 17 can be easily mounted on the rocker by a simple work. Therefore, the assembling work is extremely shortened.

Next, the operation of the locker of the rocker will be described with reference to FIGS. 3 to 3 in the order of locked state, electrical unlocking and locking, and emergency unlocking operation.
This will be described with reference to FIG. In the normal state in which the emergency unlocking operation is not performed, the cylinder lock 45 is in the locked state and the keyhole 49
4 has the locking angle shown in FIG. 4, the slider 53 is at the left moving end in FIG. 3, and the driving projection 56 of the slider 53 is separated from the driven projection 34 of the locking lever 32.

The delivery locker A ₁ is normally locked.
When the door number is specified, it is unlocked and the rocker door D can be opened. Then, when the parcel delivery luggage is put in the article storage room and the locker door D is closed, the locker door D is locked by the locking device. When the locking device is locked, the solenoid 2
5, the plunger 25a is moved to the retracted side, the drive lever 28 is rotated counterclockwise about the support shaft 24 as a fulcrum,
The locking lever 32 abuts the drive protrusion 31 of the drive lever 28, and the locking step portion 35 has the engagement step portion 4 of the latch 37.
Since it is engaged with 0, the latch 37 is restrained at the locking angle (see FIG. 7).

The contact lever of the lock confirmation limit switch 14 abuts the latch 37, and the control unit (not shown) for centrally controlling each locker stores that the lock is in progress, and the indicator lamp 46 lights up to externally activate. It is displayed that it is locked. The engagement rod R of the rocker door D is constrained by the engagement notch 39 of the latch 37 and cannot move to the left, which is the opening direction, so the rocker door D cannot be opened.

In order for the user to unlock the lock device in order to take out the article stored in the article storage room of the home delivery locker A ₁ , the user enters a predetermined personal identification number with the key switch of the input section , and enters the entered personal identification code. When the number and the number stored in the control unit match, the solenoid 25 is actuated by the unlock signal issued from the control unit, the plunger 25a moves in the protruding direction, and the drive lever 28 moves clockwise with the support shaft 24 as the fulcrum. Turn to. The rotation of the drive lever 28 causes the drive lever 2 to move.
The drive projection 31 of 8 pushes the driven wall 33 of the locking lever 32, and the locking lever 32 rotates clockwise to lock the locking step portion 3
5 and the engagement step portion 40 of the latch 37 are released (see FIG. 8).

The disengaged latch 37 becomes rotatable, and when a person manually opens the rocker door D, the spring 4 is released.
The urging force of 1 causes the support shaft 23 to rotate in the clockwise direction about the fulcrum, and the opening of the engagement notch 39 has an unlocking angle that matches the recess 22. Therefore, the engagement rod R moves in the door opening direction (left in FIG. 8). Direction) and the rocker door D can be opened. The lock confirmation limit switch 14 is separated from the latch 37 that has reached the unlocking angle, and notifies the control unit that the lock is in the unlocked state.

When the door is opened and then closed, the engaging rod R
Moves to the right and pushes the engagement notch 39, the latch 3
7 rotates clockwise about the support shaft 23 as a fulcrum, and the latch 3
The lock confirmation limit switch 14 pushed to 7 informs the control unit that the latch 37 has returned to the lock angle, the control unit operates the solenoid 25, and the plunger 25a and the drive lever 28 are brought into the locked state of FIG. After returning, the locking step 35 of the locking lever 32 and the engaging step of the latch 37 are engaged.

When the lock cannot be released due to a power failure or some electric system failure, the key K owned by the manager
Is inserted into the cylinder lock 45 to perform emergency unlocking. The key K inserted in the key hole 49 of the cylinder lock 45 is rotated about 90 degrees clockwise.
When the cam 50 rotates in the same direction (see FIG. 6), the cam 50 rotates in the same direction, and the slider 53 having the protrusion 54 that engages with the cam groove 51 of the cam 50 moves in the direction of the opening 12 (see FIG. 5). ).

As a result of this movement, the drive projection 56 is opened 12
The driven protrusion 34 and the unlocking confirmation limit switch 13 protruding from are pushed. The locking lever 32, which is pushed by the driven projection 34, rotates clockwise about the support shaft 24 as a fulcrum, and the locking step portion 35 separates from the engagement step portion 40 of the latch 37, so that the latch 37 becomes rotatable. , Engagement rod R
Can be moved in the opening direction, so that the rocker door D can be opened.

On the other hand, since the unlocking confirmation limit switch 13 notifies the emergency unlocking, the control section remains memorized as being in the electrically locked state. In the case of mechanical emergency unlocking, only the locking lever 32 rotates, and no external force is applied to the drive lever 28 and the latching solenoid 25.
Therefore, the operation of the key K becomes extremely light, and an unreasonable driving force is not applied to the solenoid 25 which is stable in the projecting position and the retracted position.

After emergency unlocking with the cylinder lock 45,
The cylinder lock 45 is used to restore the locked state.
At this time, too, the driving force is not applied to the solenoid 25, and the memory of the locked state of the control unit remains.

[0036]

Since the present invention is constructed as described above, it has the following effects. (1) Since all parts of the locking device of the rocker can be compactly sub-assembled, installation work on the rocker is extremely easy and easy, and installation work time has been shortened. or,
For the same reason, manufacturing and temporary storage can be easily managed, and the locker locking device integrally assembled can be sold as one product. (2) When performing an emergency unlock, the external force for forcibly driving the solenoid is completely unnecessary, so the durability of the solenoid is improved. (3) In the emergency unlocking, the rotational motion of the cam rotating together with the cylinder lock is converted into the linear motion of the slider via the spiral cam groove, so the torque required for key operation is extremely light and easy to operate.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a locking device of a rocker.

FIG. 2 is a perspective view of a locker locker.

FIG. 3 is a partially cutaway side view of the locking device of the rocker in a locked state.

FIG. 4 is a front view of FIG.

FIG. 5 is a partially cutaway side view of the locking device of the rocker that is emergency unlocked.

FIG. 6 is a front view of FIG.

FIG. 7 is a view for explaining the inside of the lock device of the rocker in the locked state.

FIG. 8 is a view for explaining the inside of a locking device of an electrically unlocked rocker.

FIG. 9 is a view for explaining the inside of the lock device of the rocker that is emergency unlocked.

FIG. 10 is a front view of a delivery locker in which the lock device of the present invention is installed.

FIG. 11 is a perspective view of a rocker for explaining a conventional example of a lock device.

FIG. 12 is a perspective view illustrating a relationship between another conventional locking device and an emergency unlocking mechanism.

FIG. 13 is a perspective view illustrating the relationship between another conventional locking device and an emergency unlocking mechanism.

[Explanation of symbols]

A ₁ Rocker D Rocker Door (door) R Engagement rod K Key 1 Substrate 2 Central case 3 Support plate 6 Housing recess 12 Opening 13 Unlock confirmation limit switch (unlock confirmation sensor) 14 Lock confirmation limit switch (lock) Confirmation sensor) 23, 24 Support shaft 25 Solenoid 25a Plunger 28 Drive lever 31 Drive projection 32 Locking lever 33 Driven wall 34 Driven projection 35 Lock step 36, 41 Spring 36a Other end 36b One end 37 Latch 39 Engagement notch 40 Engaging step portion 45 Cylinder lock 45a Rotor 49 Key hole 50 Cam 51 Cam groove 52 Sliding wall 53 Slider 54 Protrusion 56 Drive protrusion

Continuation of the front page (56) References JP-A-53-111929 (JP, A) JP-A-7-26818 (JP, A) JP-A-7-217287 (JP, A) Jitsukaihei 6-78552 (JP , U) Actual opening 2-113672 (JP, U) Actual opening 2-40875 (JP, U) Actual opening Sho 54-73192 (JP, U) Actual opening Sho 54-55393 (JP, U) Actual opening Sho 61-115468 (JP, U) Actual Kaihei 2-49458 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05B 65/02 E05B 47/00 E05B 65/19-65 / 20

Claims (2)

(57) [Claims] 1. A latch that is rotatably provided in a lock case and that locks and unlocks an engaging rod provided on the back surface of the door at a locking angle and an unlocking angle; and a latch that rotates in the lock case. A locking lever that is movably provided and is urged in a direction to engage the latch at a locking angle, a solenoid that operates by a locking and unlocking signal from a control unit, and is pivotally mounted in the lock case. A locking device having a drive lever for pushing the locking lever in the opposite direction by urging the solenoid in the unlocking direction, and a cylinder lock provided on the front surface of the locking case.
And a support shaft is inserted into the drive lever, and the locking lever is
The lower end of the shaft is pivotally attached to the support shaft and wound around the support shaft.
One end of the pulling is locked to the drive lever and the other end is
The lock lever is locked in the direction of engaging the latch.
When the lock lever is urged to perform an emergency unlock, insert it into the key hole of the cylinder lock.
When the inserted key is rotated, the upper end of the locking lever will
Very unlocking mechanism is provided to push the urging opposite direction, when the very unlocking is performed by the key inserted into the keyhole of the cylinder lock is rotated, the locking lever is rotated without an external force is applied to the drive lever and the solenoid, the lock device, wherein a locking stepped portion of該施lock lever is spaced apart from the engaging step portion of said latch. 2. The emergency unlocking mechanism is provided in front of the lock case.
The cylinder lock provided on the surface and the cylinder lock
And a lock case that has a cam groove on its outer peripheral surface.
Is provided so as to be movable along a sliding wall provided on the
Drive that can be brought into and out of contact with the protrusion that engages in the cam groove and the locking lever
And a cam that rotates in the unlocking direction of the cylinder lock.
The drive projection biases the locking lever when moved
2. The lock device according to claim 1, wherein the lock device comprises a slider that pushes in a direction .