JP6892482B2 - Electric locking / unlocking device - Google Patents

Description

The present invention relates to an electric locking / unlocking device provided on a door.

Conventionally, as disclosed in Patent Document 1, for example, an electric locking / unlocking device for locking and unlocking by operating an electric lock by an electric signal input from the outside has been known. A connecting rod extending in the vertical direction is connected to the lower part of the electric lock, and a spring for exerting a downward urging force is connected to the lower end of the connecting rod. An electric lock piece that is rotatable around an axis extending in the horizontal direction is engaged with the connecting rod. At the time of unlocking, the electric lock pulls up the connecting rod against the urging force of the spring, and the electric lock piece rotates with the pulling operation of the connecting rod to move the cannuki in the opening direction. On the other hand, at the time of locking, the pulling of the connecting rod by the electric lock is released by detecting the movement of the cannuki.

Special Publication No. 55-15593

An electric lock as in Patent Document 1 is generally composed of an electromagnetic solenoid. Then, by connecting a lock member for locking the cannuki or the like to the output unit of the electromagnetic solenoid, the output unit of the electromagnetic solenoid is brought into the advanced state, the lock member is set to the lock position, and the output unit of the electromagnetic solenoid is retracted. The lock member can be switched to the unlocked position in the state.

By the way, for example, it is assumed that a voltage is applied in a direction of retracting the output unit with respect to the electromagnetic solenoid while the lock member is fixed at the lock position for some reason. If this happens, the voltage will continue to be applied while the operation of the electromagnetic solenoid is forcibly stopped, causing damage to the electromagnetic solenoid.

Therefore, it is conceivable to provide an extendable spring between the output unit of the electromagnetic solenoid and the lock member. According to this configuration, even if a voltage is applied in the direction of retracting the output unit with respect to the electromagnetic solenoid while the lock member is fixed at the locked position, the extension of the spring enables the electromagnetic solenoid to retract. Damage to the electromagnetic solenoid can be avoided.

However, if a spring is provided between the output unit of the electromagnetic solenoid and the lock member, for example, the impact force at the time of unlocking the lock member repeatedly acts on the spring, and the lock member is particularly vigorously unlocked. If this is done, the spring and the connecting pin of the spring may be damaged.

The present invention has been made in view of this point, and an object of the present invention is to provide a spring or a spring when a spring is provided between an output unit of an electric drive device such as an electromagnetic solenoid and a lock member. The purpose is to prevent damage by making it difficult for the impact force at the time of unlocking to be transmitted to the connecting pin.

In order to achieve the above object, the first invention provides a lock member for locking the cannuki operating member provided on the door, the lock member, a lock position for locking the cannuki operating member, and a lock for the cannuki operating member. An extendable spring provided between the electric drive device for switching to the unlock position to be released, the lock member, and the output unit of the electric drive device, and one end of the spring are attached to the output unit. In an electric locking / unlocking device including a connecting pin for connecting, a guide member for guiding the lock member moving between the lock position and the unlock position in the moving direction is provided, and the lock member includes the lock. It is characterized in that a contact portion that comes into contact with the guide member from the moving direction of the lock member when the position is switched to the unlocked position is provided.

According to this configuration, when the electric drive device advances the output unit, for example, the lock member is in the lock position and the cannuki operation member is locked. On the other hand, when the electric drive device retracts the output unit, the lock member is in the unlocked position, and the lock of the Kannuki operating member is released. Since the lock member that moves between the lock position and the unlock position is guided by the guide member, the lock member moves in a predetermined trajectory even in the momentary movement by the electric drive device. It should be noted that the electric drive device can be configured to lock by retracting the output unit, while unlocking by advancing the output unit. The same applies hereinafter.

Here, assuming that a voltage is applied in the direction of retracting the output unit to the electric drive device while the lock member is fixed at the locked position, the electric drive device retracts due to the extension of the spring. Since the operation is possible, damage to the electric drive device is avoided.

Further, when the electric drive device momentarily switches the lock member from the lock position to the unlock position, the contact portion of the lock member contacts the guide member from the moving direction, and the guide member exerts a force in the same direction. Will receive. As a result, the impact force acting on the spring and the connecting pin is reduced.

Examples of the electric drive device include an electromagnetic solenoid, a drive device using a gear and a motor, and the like.

The second invention includes a manual unlocking mechanism for moving the lock member at the lock position to the unlocked position by a manual operation from the outside of the door, and the contact portion is the manual unlocking mechanism. It is characterized in that it is arranged so as to engage with and receive a force in the unlocking direction output from the manual unlocking mechanism.

According to this configuration, for example, when the electric drive device breaks down, by operating the manual unlocking mechanism from the outside of the door, the force in the unlocking direction output from the manual unlocking mechanism is transmitted to the contact portion. The lock member in the locked position is manually moved to the unlocked position. Therefore, the contact portion is used not only as a portion for reducing the impact force acting on the spring and the connecting pin, but also at the time of manual unlocking.

In the third invention, the lock member is made of a plate material, the guide member has a guide hole through which the lock member is inserted in the moving direction, and the contact portion is formed from the lock member in the moving direction. It is characterized in that it is composed of a protruding portion that protrudes in a direction intersecting with the guide member and abuts on the peripheral edge portion of the guide hole of the guide member.

According to this configuration, by inserting the lock member into the guide hole, the movement of the lock member in a direction other than the moving direction is restricted, and the lock member can be reliably guided. Then, by using the protruding portion protruding from the lock member as the contact portion, the contact portion reliably contacts the peripheral edge portion of the guide hole of the guide member.

The fourth invention switches between a lock member for locking the cannuki operating member provided on the door, a lock position for locking the cannuki operating member, and an unlocking position for unlocking the cannuki operating member. An electric type including an electric drive device, an extendable spring provided between the lock member and an output portion of the electric drive device, and a connecting pin for connecting one end of the spring to the output portion. In the locking / unlocking device, a connecting member for connecting the lock member to the spring is provided between the lock member and the spring, and the output unit locks the lock member at the lock position of the connecting member. It is characterized in that a movement allowing portion for moving the lock member to the unlocked position is provided when the lock member is fixed in the above-mentioned state.

According to this configuration, when the electric drive device advances the output unit, for example, the lock member is brought into the lock position via the connecting member, and the cannuki operation member is locked. On the other hand, when the electric drive device retracts the output unit, the lock member is brought into the unlocked position via the connecting member, and the lock of the Kannuki operating member is released.

Here, assuming that a voltage is applied in the direction of retracting the output unit to the electric drive device while the lock member is fixed at the locked position, the electric drive device retracts due to the extension of the spring. Since the operation is possible, damage to the electric drive device is avoided.

Further, assuming that the output unit is fixed and does not move due to a failure of the electric drive device or the like with the lock member in the locked position, the connecting member is provided with a movement allowance portion, so that the lock member is locked. By applying an external force to the member in the unlocking direction, the locking member can be moved to the unlocking position without imposing a load on the spring or the connecting pin. As a result, the impact force does not act on the spring and the connecting pin at the time of emergency unlocking.

A fifth invention includes a manual unlocking mechanism for moving the lock member at the lock position to the unlocked position by a manual operation from the outside of the door, and the lock member is provided with the manual unlocking mechanism. It is characterized in that a protruding portion that engages with and receives a force in the unlocking direction output from the manual unlocking mechanism is provided.

According to this configuration, for example, when the electric drive device breaks down, by operating the manual unlocking mechanism from the outside of the door, the force in the unlocking direction output from the manual unlocking mechanism is transmitted to the protruding portion. The lock member in the lock position manually moves to the unlock position. At this time, since the connecting member is provided with the movement allowance portion, the connecting member does not hinder the movement of the lock member.

According to a sixth aspect of the present invention, the lock member is provided with an engaging pin extending in a direction intersecting the moving direction of the lock member, and the engaging pin is inserted into the moving allowable portion of the connecting member. It is characterized by being composed of elongated holes that are long in the moving direction.

According to this configuration, when an external force is applied to the lock member in the unlocking direction while the engaging pin of the lock member is inserted into the elongated hole of the connecting member, the elongated hole is long in the moving direction of the lock member. Therefore, the engaging pin moves in the longitudinal direction of the elongated hole. This makes it possible to move the lock member to the unlocked position.

The seventh invention switches between a lock member for locking the cannuki operating member provided on the door, a lock position for locking the cannuki operating member, and an unlocking position for unlocking the cannuki operating member. An electric type including an electric drive device, an extendable spring provided between the lock member and an output portion of the electric drive device, and a connecting pin for connecting one end of the spring to the output portion. In the locking / unlocking device, a protective cover member extending toward the other end side of the spring is connected to the output portion, and the lock member is connected to the spring between the lock member and the spring. The protective cover member is provided so as to come into contact with the connecting member that is interlocked when the locking member is switched from the locking position to the unlocking position in the moving direction of the connecting member. It is characterized in that it is formed.

According to this configuration, when the electric drive device advances the output unit, for example, the lock member is brought into the lock position via the connecting member, and the cannuki operation member is locked. On the other hand, when the electric drive device retracts the output unit, the lock member is brought into the unlocked position via the connecting member, and the lock of the Kannuki operating member is released.

Here, assuming that a voltage is applied in the direction of retracting the output unit to the electric drive device while the lock member is fixed at the locked position, the electric drive device retracts due to the extension of the spring. Since the operation is possible, damage to the electric drive device is avoided.

Further, when the electric drive device momentarily switches the lock member from the lock position to the unlock position, the connecting member moves in conjunction with the lock member. Since this connecting member comes into contact with the protective cover member from the moving direction of the connecting member, the protective cover member receives a force in the same direction. As a result, the impact force acting on the spring and the connecting pin is reduced.

The eighth invention is characterized in that the connecting member is made of a plate material, and the protective cover member is provided with a slit into which the connecting member is inserted so as to extend in the moving direction of the connecting member.

According to this configuration, the connecting member is guided by the slit while the connecting member is inserted into the slit of the protective cover member.

A ninth aspect of the present invention is characterized in that the protective cover member is connected to the output portion by the connecting pin.

According to this configuration, the protective cover member and the output portion can also be connected by using the connecting pin that connects one end portion of the spring to the output portion.

According to the first invention, a guide member for guiding the lock member driven by the electric drive device is provided, and when the lock member is switched from the lock position to the unlock position, the contact portion of the lock member is guided. Since it is brought into contact with the member, the impact force acting on the spring and the connecting pin can be reduced, and damage to the spring and the connecting pin can be suppressed.

According to the second invention, since the abutting portion is arranged so as to engage with the manual unlocking mechanism and receive the force in the unlocking direction, it is only necessary to reduce the impact force acting on the spring and the connecting pin. The contact portion can be used even at the time of manual unlocking.

According to the third invention, the lock member can be reliably guided by inserting the lock member into the guide hole. In this case, the protruding portion protruding from the lock member is used as the contact portion, so that the contact portion is used as the guide member. The impact force acting on the spring and the connecting pin can be surely reduced by surely contacting the peripheral edge of the guide hole.

According to the fourth invention, since the connecting member for connecting the lock member to the spring is provided with a movement allowance portion for moving the lock member from the lock position to the unlocked position, an impact is applied to the spring and the connecting pin. Emergency unlocking can be performed without any need.

According to the fifth invention, the lock member can be set to the unlocked position by the manual unlocking mechanism without the connecting member hindering the movement of the lock member.

According to the sixth invention, the movement allowance portion can be easily configured by using the engaging pin and the elongated hole.

According to the seventh invention, since the impact force of the connecting member when the lock member is switched from the locked position to the unlocked position can be received by the protective cover member of the spring, damage to the spring and the connecting pin can be suppressed. ..

According to the eighth invention, the movement can be made smooth by guiding the connecting member by the slit of the protective cover member.

According to the ninth invention, since the protective cover member can be connected to the output unit by the connecting pin that connects the spring to the output unit, an increase in the number of parts can be suppressed.

It is a perspective view of the opening / closing device provided with the electric locking / unlocking device which concerns on embodiment. It is a perspective view of the electric locking / unlocking device at the time of locking. It is a figure corresponding to FIG. 2 at the time of unlocking. It is a side view of the electric locking / unlocking device at the time of locking. It is a figure corresponding to FIG. 2 at the time of emergency unlocking. It is a figure corresponding to FIG. 2 at the time of an abnormal operation. It is a front view explaining the case where the connecting member returns to a normal position at the time of an abnormal operation. It is a side view explaining the case where the connecting member returns to a normal position at the time of an abnormal operation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example and is not intended to limit the present invention, its application or its use.

FIG. 1 is a perspective view of a switchgear 100 provided with an electric locking / unlocking device according to an embodiment of the present invention. The switchgear 100 is installed and used in various buildings, for example. Examples of the building in which the switchgear 100 is installed include various buildings, factories, research facilities, and the like. In this embodiment, the case where the switchgear 100 is installed in the research facility will be described. The switchgear 100 can be installed on a wall portion, a skeleton member, or the like constituting a research facility, and is used for opening and closing a room, a room, and a passage.

The switchgear 100 includes a door 101, a door support member 102 that supports the door 101, and a hinge (not shown) that rotatably connects the door 101 to the door support member 102. The hinge includes a rotation shaft (not shown) extending in the vertical direction, and the door 101 can be switched between a closed state (not shown) and an open state (not shown) by rotating around the axis of the hinge.

The door 101 incorporates the electric locking / unlocking device 1 shown in FIG. 2 and the like, and is provided with a handle 104 for opening / closing, a cannuki 105, and a cannuki operating member 106. The handle 104 is rotatably provided with respect to the main body portion of the door 101. The rotational force of the handle 104 is converted into a force in the horizontal direction and transmitted to the Kannuki operating member 106. By moving the Kannuki operating member 106 in the horizontal direction, it is possible to switch between a state in which the Kannuki 105 is advanced and a state in which the Kannuki 105 is retracted. The Kannuki 105 in the advanced state holds the door 101 in the closed state by engaging with the door support member 102.

The configuration of the handle 104, the cannuki 105, and the cannuki operating member 106 is not limited to the above-mentioned configuration, and may be any configuration. For example, the handle 104 may be of a lever type. In addition, the number and position of the cannuki 105 can be arbitrarily set. Further, the shape and position of the Kannuki operating member 106 can be arbitrarily set.

As shown in FIG. 4, the door 101 includes a substrate 101a to which the electric locking / unlocking device 1 is attached, and a cover member 101b that covers the electric locking / unlocking device 1 attached to the substrate 101a. A storage space R capable of accommodating the electric locking / unlocking device 1 is formed between the substrate 101a and the cover member 101b.

As shown in FIG. 2, the electric locking / unlocking device 1 can maintain the Kannuki 105 in the advanced state by preventing the Kannuki operating member 106 from retreating, and this state is in the locked state. Is. On the other hand, the electric locking / unlocking device 1 can be switched from the locked state to the unlocked state shown in FIG. 3, and in this unlocked state, the retreat of the cannuki operating member 106 is allowed.

The specific configuration of the electric locking / unlocking device 1 will be described below. The electric locking / unlocking device 1 includes a lock member 2 that can move in the vertical direction, an electromagnetic solenoid 3 as an electric drive device that drives the lock member 2, a connecting member 4, a spring 5, and a connecting pin 6. It includes an upper guide member 7, a lower guide member 8, and a manual unlocking mechanism 9. The lock member 2 is a member for locking the cannuki operation member 106, and is made of a high-strength metal plate material. The lock member 2 is provided so that the longitudinal direction of the lock member 2 substantially coincides with the vertical direction. The width direction of the lock member 2 substantially coincides with the width direction of the door 101, and the lock member 2 extends along the inner surface of the door 101. For convenience of explanation, the width direction of the lock member 2 is defined as the left-right direction, and the right side and the left side are defined as shown in each figure, but this does not limit the actual usage state.

The position of the lock member 2 in the left-right direction is determined by the upper guide member 7 and the lower guide member 8 at a predetermined position. A plate-shaped contact portion 2a formed of a protruding portion protruding to the right, that is, a direction intersecting the moving direction of the lock member 2 is provided at an intermediate portion in the vertical direction of the lock member 2. The contact portion 2a may project to the left. The contact portion 2a is integrally molded with the main body portion 2b of the lock member 2. For example, the main body portion 2b and the contact portion 2a can be integrally cut out by cutting a plate material having a predetermined shape. The contact portion 2a may be formed of a member different from the main body portion 2b. In this case, the contact portion 2a may be fixed to the main body portion 2b. Further, although the contact portion 2a has a rectangular shape when viewed from the front, the shape of the contact portion 2a is not limited to the rectangular shape and can be set to any shape. A plurality of abutting portions 2a may be provided so as to project toward both the left and right sides.

The lower end of the lock member 2 is a blocking portion 2c for blocking the movement of the cannuki operating member 106. As shown in FIG. 2, when the lock member 2 moves downward, the blocking portion 2c is arranged so as to face the end portion 106a of the cannuki operating member 106 in the advanced state, whereby the retracting of the cannuki operating member 106 is caused. Be blocked. This position is the lock position. On the other hand, as shown in FIG. 3, when the lock member 2 moves upward, the blocking portion 2c is arranged above the end portion 106a of the cannuki operating member 106, whereby the retracting of the cannuki operating member 106 is allowed. .. This position is the unlock position.

An engaging pin 2d is provided at the upper end of the lock member 2. The engaging pin 2d extends in a direction intersecting the moving direction (vertical direction) of the lock member 2, and specifically, extends so as to project in the thickness direction of the lock member 2. The engaging pin 2d is made of a member different from the lock member 2, and may be made of, for example, a pin-shaped member or a member having a shaft such as a bolt or a screw. When a bolt or screw is provided, the shaft of the bolt or screw becomes the engaging pin 2d.

The electromagnetic solenoid 3 is for switching the lock member 2 between a lock position for locking the cannuki operation member 106 and an unlock position for unlocking the cannuki operation member 106. As the electromagnetic solenoid 3, a solenoid having a well-known structure can be used, and although not shown, it includes a coil, a fixed iron core, a movable iron core, a frame, and the like. As shown in FIGS. 2 and 3, the electromagnetic solenoid 3 is arranged so as to be separated upward from the upper end portion of the lock member 2. Instead of the electromagnetic solenoid 3, for example, an electric drive device using a gear and a motor may be used.

The electromagnetic solenoid 3 includes a main body portion 3a containing a coil, a fixed iron core, a movable iron core, and the like, an output unit 3b fixed to the movable iron core and integrated with the movable iron core, and a movable portion similarly fixed to the movable iron core. It has 3c and. The advancing / retreating direction of the movable iron core is the vertical direction. In this embodiment, as shown in FIG. 4, the output unit 3b is arranged directly above the upper end portion of the lock member 2, and in this state, the main body portion 3a is a door. It is fixed to the substrate 101a of 101. The output unit 3b projects downward from the main body unit 3a. By switching the voltage applied to the coil, the movable iron core, that is, the output unit 3b can be moved in the vertical direction, and as shown in FIG. As shown in 3, the output unit 3b can be moved upward to switch to a retracted state in which the output unit 3b is retracted.

Although not shown, a control unit is connected to the electromagnetic solenoid 3. An operating means consisting of operation buttons, switches, and the like for operating the locking / unlocking is connected to the control unit, and the control unit detects the operating state of the operating means and applies a predetermined voltage to the electromagnetic solenoid 3. Apply. The electromagnetic solenoid 3 is switched from the advanced state to the retracted state and from the retracted state to the advanced state at the moment when the voltage is applied, and its operating speed is high. The electromagnetic solenoid 3 may be locked in the advanced state and unlocked in the retracted state, or may be locked in the retracted state and unlocked in the retracted state.

The movable portion 3c of the electromagnetic solenoid 3 projects upward from the main body portion 3a. The movable unit 3c is interlocked with the output unit 3b, and moves upward when the output unit 3b retracts, and moves downward when the output unit 3b advances.

The spring 5 is arranged below the main body 3a of the electromagnetic solenoid 3 and above the lock member 2. A connecting member 4 for connecting the lock member 2 to the spring 5 is provided between the lock member 2 and the spring 5. The connecting member 4 is made of a high-strength metal plate, has a long shape in the vertical direction, and is arranged so as to overlap at least the upper portion of the lock member 2 in the thickness direction. In this state, the upper portion of the connecting member 4 is located above the upper end portion of the lock member 2.

The vertical dimension of the connecting member 4 is set shorter than the vertical dimension of the lock member 2. Further, the left-right dimension of the connecting member 4 is set longer than the left-right dimension of the lock member 2, and the left end portion of the connecting member 4 protrudes to the left side of the left end portion of the lock member 2. The right end of the connecting member 4 projects to the right of the right end of the lock member 2.

The connecting member 4 is provided with a movement permitting portion 4a for making the lock member 2 relatively movable. The movement allowable portion 4a is a portion for allowing the lock member 2 to move to the unlocked position when the output portion 3b of the electromagnetic solenoid 3 is fixed with the lock member 2 in the locked position. For example, the movement allowance portion 4a can be formed of an elongated hole through which the engaging pin 2d of the lock member 2 is inserted, and the engaging pin 2d can relatively move in the elongated hole in the vertical direction. .. This elongated hole is formed long in the moving direction of the lock member 2 and penetrates the connecting member 4 in the thickness direction. Further, the movement allowable portion 4a is formed in a region of a substantially lower half portion of the connecting member 4. The opening width of the movement allowance portion 4a is set to be narrower than the outer diameter of the head portion so that the head portion provided at the tip end portion of the engagement pin 2d does not come off.

A spring mounting hole 4b for hooking the lower end portion of the spring 5 is formed in the vicinity of the upper end portion of the connecting member 4. The spring mounting hole 4b can be formed of, for example, a circular hole, and penetrates the connecting member 4 in the thickness direction.

The spring 5 is a member provided between the lock member 2 and the output portion 3b of the electromagnetic solenoid 3, and is configured to be at least expandable. As the spring 5, for example, a tension spring or the like can be used, but the type of the spring 5 is not limited to this, and a member capable of contracting in addition to extending may be used.

The extension direction of the spring 5 is the vertical direction. As shown in FIG. 8, the upper end portion (one end portion) of the spring 5 is provided with the upper end hook portion 5a formed in a ring shape, and the lower end portion (end end portion) of the spring 5 is similarly formed. The lower end hooking portion 5b is provided. As shown in FIG. 2, the lower end hooking portion 5b is hooked on the portion where the spring mounting hole 4b of the connecting member 4 is formed.

The connecting pin 6 shown in FIG. 2 and the like is a member for connecting the upper end hooking portion 5a of the spring 5 to the output portion 3b of the electromagnetic solenoid 3, and is made of, for example, a metal material. As shown in FIGS. 4 and 8, pin insertion holes 3d are formed so as to penetrate in the left-right direction on both sides of the output portion 3b of the electromagnetic solenoid 3 in the left-right direction. The connecting pin 6 has a posture extending in the left-right direction, and both ends in the left-right direction are held by the output unit 3b in a state of being inserted into the pin insertion holes 3d of the output unit 3b. As a retaining ring for the connecting pin 6, for example, a retaining ring (not shown) or the like can be used. The left-right intermediate portion of the connecting pin 6 is inserted into the upper end hook portion 5a of the spring 5. As a result, the upper end hook portion 5a of the spring 5 can be attached to the connecting pin 6.

As shown in FIG. 2, a protective cover member 10 for protecting the spring 5 is connected to the output unit 3b of the electromagnetic solenoid 3. The protective cover member 10 is also a component of the electric locking / unlocking device 1. As shown in FIG. 7, the protective cover member 10 has a left side plate portion 11 and a right side plate portion 12 extending from the upper end hook portion 5a of the spring 5 to the lower end hook portion 5b toward the lower end portion side, and also has the left side plate portion 11. It has an upper plate portion 13 that connects the upper portion and the upper portion of the right side plate portion 12.

The left side plate portion 11 and the right side plate portion 12 of the protective cover member 10 are arranged between the left side portion and the right side portion of the output portion 3b of the electromagnetic solenoid 3, and extend in a direction orthogonal to the connecting member 4. There is. An insertion hole (not shown) through which the connecting pin 6 is inserted is formed in the upper ends of the left side plate portion 11 and the right side plate portion 12 so as to penetrate the plate portions 11 and 12 in the left-right direction (thickness direction). .. The connecting pin 6 is inserted into the insertion holes of the left side plate portion 11 and the right side plate portion 12, whereby the protective cover member 10 is connected to the output portion 3b by the connecting pin 6.

As shown in FIG. 7, the spring 5 is arranged between the left side plate portion 11 and the right side plate portion 12. A gap is formed between the spring 5 and the left plate portion 11 and between the spring 5 and the right plate portion 12, respectively, and the left plate portion 11 and the right plate portion 12 do not hinder the extension operation of the spring 5. It has become like. Further, as shown in FIG. 8, the spring 5 is completely covered by the left side plate portion 11 in the left side view. Although not shown, the spring 5 is also completely covered by the right side plate portion 12 in the right side view.

As shown in FIG. 2, slits 11a and 12a into which the upper portion of the connecting member 4 is inserted into the substantially lower half portion of the left side plate portion 11 and the right side plate portion 12 are the vertical directions in which the connecting member 4 is moved. It is provided so as to extend to. The lower ends of the slits 11a and 12a are open, and the connecting member 4 can be inserted from the open portions. The connecting member 4 can move relative to the protective cover member 10 in the vertical direction while being inserted into the slits 11a and 12a, and the connecting member 4 is located at the upper end of the slits 11a and 12a in the protective cover member 10. The contact of the upper end portions defines the ascending position of the connecting member 4 with respect to the protective cover member 10, and further prevents the connecting member 4 from ascending with respect to the protective cover member 10. That is, the protective cover member 10 is formed so as to come into contact with the interlocking connecting member 4 in the moving direction of the connecting member 4 when the lock member 2 is switched from the locked position to the unlocked position.

The upper guide member 7 is a member for guiding the lock member 2 that moves between the lock position and the unlock position in the moving direction. As shown in FIG. 4, the upper guide member 7 includes a fixing plate portion 7a fixed to the substrate 101a and a guide plate portion 7b protruding from the fixing plate portion 7a toward the cover member 101b, and is a lock member. It is composed of the same metal plate material as in 2. The guide plate portion 7b is formed with a guide hole 7c through which the lock member 2 is inserted in the moving direction. The guide hole 7c is formed so as to extend long in the left-right direction corresponding to the cross-sectional shape of the lock member 2. When the lock member 2 moves, the outer surface of the lock member 2 is guided in the vertical direction by sliding the inner surface of the guide hole 7c. Further, the movement of the lock member 2 in the left-right direction is restricted by the inner surface of the guide hole 7c.

The upper guide member 7 is located above the contact portion 2a of the lock member 2. Therefore, when the lock member 2 is switched from the lock position to the unlock position, the contact portion 2a of the lock member 2 comes into contact with the peripheral edge portion of the guide hole 7c of the upper guide member 7 from the moving direction of the lock member 2. It has become. Specifically, the upper end portion of the contact portion 2a of the lock member 2 comes into contact with the peripheral edge portion of the guide hole 7c of the upper guide member 7 from below. Thereby, the ascending position of the lock member 2 is defined.

The lower guide member 8 is configured in the same manner as the upper guide member 7, has a fixing plate portion 8a and a guide plate portion 8b, and has a guide hole 8c formed in the guide plate portion 8b. Both the upper and lower sides of the lock member 2 are guided in the vertical direction by the upper guide member 7 and the lower guide member 8.

The manual unlocking mechanism 9 is a mechanism for moving the lock member 2 in the locked position to the unlocked position by a manual operation from the outside of the door 101. That is, the manual unlocking mechanism 9 has a fixing plate 90 fixed to the substrate 101a of the door 101, an operation button 91 for manual release, and a swing plate 92. The operation button 91 is arranged so as to face the outside from the cover member 101b so that the door 101 can be manually operated from the outside. As shown in FIG. 4, the operation button 91 is covered with the button cover 101c so as not to be erroneously operated in the normal state, but the button cover 101c may be omitted.

The operation button 91 can be pushed by a finger or the like, and is supported by the fixing plate 90 so as to be movable inward of the door 101 (in the direction approaching the substrate 101a) by the pushing force of the finger. The operation button 91 is provided with a movable plate 91a. The movable plate 91a also moves in the same direction as the operation button 91 is pushed. The rocking plate 92 is swingably attached to the fixing plate 90 in the vertical direction by a shaft 92a extending in the horizontal direction. The rocking plate 92 is provided with an engaging protrusion 92b (shown by a broken line in FIGS. 2 and 4). The engaging protrusion 92b is adapted to engage with the movable plate 91a of the operation button 91, and when the operation button 91 is pushed and the movable plate 91a moves, the movable plate 91a pushes the engaging protrusion 92b. As a result, the rocking plate 92 rotates upward around the shaft 92a as shown by a virtual line in FIG.

Above the rocking plate 92, a contact portion 2a of the lock member 2 is arranged so as to engage with the rocking plate 92 that rotates upward. That is, the contact portion 2a of the lock member 2 is arranged so as to engage with the rocking plate 92 and receive a force in the unlocking direction (a force upward around the shaft 92a) output from the manual unlocking mechanism 9. Has been done.

(Locking operation)
The locking operation is performed with the Kannuki operating member 106 advanced. When the locking operation is performed by the locking / unlocking operation button (not shown), the electromagnetic solenoid 3 advances the output unit 3b as shown in FIG. As a result, the lock member 2 connected to the output unit 3b via the spring 5 and the connecting member 4 moves downward and is arranged at the lock position. At this time, the lock member 2 can be moved downward by its own weight, but may be moved downward by an urging force by an urging means such as a spring (not shown). When the lock member 2 is arranged at the locked position, the blocking portion 2c is arranged so as to face the end portion 106a of the cannuki operating member 106 in the advanced state, whereby the retracting of the cannuki operating member 106 is prevented.

(Unlocking operation)
When the unlocking operation is performed by the locking / unlocking operation button (not shown), the electromagnetic solenoid 3 retracts the output unit 3b as shown in FIG. As a result, the lock member 2 connected to the output unit 3b via the spring 5 and the connecting member 4 moves upward and is arranged at the unlocked position, so that the blocking unit 2c is arranged at the end 106a of the cannuki operating member 106. Placed above. Therefore, the retreat of the Kannuki operating member 106 is allowed. Since the lock member 2 is guided in the vertical direction by the upper guide member 7 and the lower guide member 8, it is predetermined when moving from the lock position to the unlock position and when moving from the lock release position to the lock position. It will move along the trajectory, and the operation will be smooth.

Further, when switching from the lock position to the unlock position, the electromagnetic solenoid 3 momentarily retracts the output unit 3b, so that the lock member 2 rises at a high speed. Therefore, if there is no contact portion 2a, an impact force acts on the spring 5 and the connecting pin 6 due to the inertial force of the lock member 2. If this is repeated, the spring 5 and the connecting pin 6 may be damaged.

In the present embodiment, the lock member 2 is provided with the contact portion 2a, and when switching from the lock position to the unlock position, the contact portion 2a is brought into contact with the peripheral edge portion of the guide hole 7c of the upper guide member 7. The ascending position is regulated so that the lock member 2 does not move upward more than necessary. That is, since the position of the contact portion 2a and the position of the upper guide member 7 prevent the lock member 2 from rising excessively, the impact force acting on the spring 5 and the connecting pin 6 can be significantly reduced.

Further, when switching from the lock position to the unlock position, the connecting member 4 also rises at a high speed, but the rising position of the connecting member 4 is formed on the left side plate portion 11 and the right side plate portion 12 of the protective cover member 10. Since it is regulated by the upper ends of the slits 11a and 12a, the impact force acting on the spring 5 and the connecting pin 6 due to the inertial force of the connecting member 4 can be significantly reduced.

(At the time of emergency unlocking)
Next, emergency unlocking will be described. For example, if the electromagnetic solenoid 3 becomes stuck in the advanced state due to a failure of the electromagnetic solenoid 3, the lock member 2 remains in the locked position, and the cannuki 105 cannot be retracted. In such an emergency, the operation button 91 of the manual unlocking mechanism 9 is pressed from the outside of the door 101. Then, the movable plate 91a moves, and the movable plate 91a pushes the engaging projection 92b of the rocking plate 92, whereby the rocking plate 92 rotates upward around the shaft 92a and comes into contact with the lock member 2. An upward force acts on the portion 2a. As a result, the lock member 2 tries to move upward. Since the engaging pin 2d of the lock member 2 is inserted through the movement permitting portion 4a of the connecting member 4, even if the connecting member 4 does not move upward, the locking member 2 is allowed to move upward, thereby allowing the locking member 2 to move upward. , The lock member 2 can be set to the unlocked position.

Even when the lock is manually released, the contact portion 2a can be brought into contact with the peripheral edge of the guide hole 7c of the upper guide member 7, so that the impact force acting on the spring 5 and the connecting pin 6 is significantly increased. Can be lowered.

(At the time of abnormal operation)
Next, the time of abnormal operation will be described. As shown in FIG. 6, it is assumed that the output unit 3b of the electromagnetic solenoid 3 retracts in a state where the lock member 2 at the lock position cannot be moved to the unlock position due to, for example, being caught by another member. .. In this case, since the spring 5 is interposed between the output unit 3b of the electromagnetic solenoid 3 and the lock member 2, the extension of the spring 5 allows the output unit 3b to retreat. The extension of the spring 5 causes the protective cover member 10 to move upward relative to the connecting member 4. As a result, damage to the electromagnetic solenoid 3 is avoided.

When the protective cover member 10 moves upward, the connecting member 4 moves in the slits 11a and 12a of the protective cover member 10. At this time, since the inner surfaces of the slits 11a and 12a slide on the outer surface of the connecting member 4 and the protective cover member 10 is guided upward by the connecting member 4, the protective cover member 10 smoothly moves upward.

(Action and effect of the embodiment)
As described above, according to the electric locking / unlocking device 1 according to this embodiment, when the electromagnetic solenoid 3 advances the output unit 3b, the lock member 2 is in the locked position and the cannuki operating member 106 is locked. be able to. On the other hand, when the electromagnetic solenoid 3 retracts the output unit 3b, the lock member 2 is in the unlocked position, and the lock of the cannuki operation member 106 can be released. Therefore, it is possible to quickly switch between locking and unlocking by an electric signal from the outside.

Since the lock member 2 that moves between the lock position and the unlock position can be guided by the upper guide member 7 and the lower guide member 8, the lock member 2 can be moved in advance even in the momentary movement by the electromagnetic solenoid 3. It can be moved in a defined trajectory.

Further, if a voltage is applied to the electromagnetic solenoid 3 in the direction of retracting the output unit 3b while the lock member 2 is fixed at the locked position, the electromagnetic solenoid 3 can be retracted by the extension of the spring 5. Therefore, damage to the electromagnetic solenoid 3 can be avoided.

Further, when the electromagnetic solenoid 3 momentarily switches the lock member 2 from the lock position to the unlock position, the contact portion 2a of the lock member 2 contacts the upper guide member 7 from the moving direction, and the upper guide member 2 abuts. 7 receives a force in the same direction. As a result, the impact force acting on the spring 5 and the connecting pin 6 can be reduced, and damage to the spring 5 and the connecting pin 6 can be suppressed.

Further, when the output unit 3b is fixed and does not move due to a failure of the electromagnetic solenoid 3 or the like with the lock member 2 in the locked position, the connecting member 4 is provided with the movement allowance unit 4a, so that it is manually operated. By applying an external force to the lock member 2 in the unlocking direction by using the unlocking mechanism 9, the lock member 2 can be moved to the unlocked position while the connecting member 4 is stopped. As a result, since the connecting member 4 can be held in the stopped state at the time of emergency unlocking, the impact force does not act on the spring 5 and the connecting pin 6, and the spring 5 and the connecting pin 6 can be suppressed from being damaged.

Further, when the electromagnetic solenoid 3 momentarily switches the lock member 2 from the lock position to the unlock position, the connecting member 4 moves in conjunction with the lock member 2, and the connecting member 4 is a protective cover. Since the members 10 come into contact with the upper ends of the slits 11a and 12a from below, the protective cover member 10 receives a force in the same direction. As a result, the impact force acting on the spring 5 and the connecting pin 6 can be reduced, and damage to the spring 5 and the connecting pin 6 can be suppressed.

The above embodiments are merely exemplary in all respects and should not be construed in a limited way. Furthermore, all modifications and modifications that fall within the equivalent scope of the claims are within the scope of the present invention.

As described above, the electric locking / unlocking device according to the present invention can be used by being provided on a door installed in various buildings, for example.

1 Electric locking / unlocking device 2 Lock member 2a Contact part (protruding part)
2d Engagement pin 3 Electromagnetic solenoid (electric drive)
3b Output part 4 Connecting member 4a Movement allowance part 5 Spring 6 Connecting pin 7 Upper guide member 7c Guide hole 9 Manual unlocking mechanism 10 Protective cover member 11a, 12a Slit 106 Kannuki operation member

Claims (9)

A lock member that locks the cannuki operation member provided on the door,
An electric drive device that switches the lock member between a lock position for locking the cannuki operating member and an unlocking position for unlocking the cannuki operating member.
An extendable spring provided between the lock member and the output unit of the electric drive device.
In an electric locking / unlocking device including a connecting pin for connecting one end of the spring to the output.
A guide member for guiding the lock member moving between the lock position and the unlock position in the moving direction is provided.
The lock member is provided with an electric contact portion that comes into contact with the guide member from the moving direction of the lock member when the lock member is switched from the lock position to the unlock position. Locking / unlocking device. In the electric locking / unlocking device according to claim 1,
A manual unlocking mechanism for moving the lock member at the lock position to the unlock position by a manual operation from the outside of the door is provided.
An electric locking / unlocking device, wherein the abutting portion is arranged so as to engage with the manual unlocking mechanism and receive a force in the unlocking direction output from the manual unlocking mechanism. In the electric locking / unlocking device according to claim 1 or 2.
The lock member is made of a plate material.
The guide member has a guide hole through which the lock member is inserted in the moving direction.
The electric locking / unlocking device is characterized in that the contact portion protrudes from the lock member in a direction intersecting the moving direction and abuts on the peripheral edge portion of the guide hole of the guide member. .. A lock member that locks the cannuki operation member provided on the door,
An electric drive device that switches the lock member between a lock position for locking the cannuki operating member and an unlocking position for unlocking the cannuki operating member.
An extendable spring provided between the lock member and the output unit of the electric drive device.
In an electric locking / unlocking device including a connecting pin that connects one end of the spring to the output.
A connecting member for connecting the lock member to the spring is provided between the lock member and the spring.
The connecting member is provided with a movement allowing portion for moving the lock member to the unlocked position when the output portion is fixed in a state where the lock member is in the locked position. Electric locking and unlocking device. In the electric locking / unlocking device according to claim 4.
A manual unlocking mechanism for moving the lock member at the lock position to the unlock position by a manual operation from the outside of the door is provided.
An electric locking / unlocking device characterized in that the locking member is provided with a protruding portion that engages with the manual unlocking mechanism and receives a force in the unlocking direction output from the manual unlocking mechanism. In the electric locking / unlocking device according to claim 4 or 5.
The lock member is provided with an engaging pin extending in a direction intersecting the moving direction of the lock member.
An electric locking / unlocking device, wherein the movement permitting portion of the connecting member is formed of an elongated hole long in the moving direction through which the engaging pin is inserted. A lock member that locks the cannuki operation member provided on the door,
An electric drive device that switches the lock member between a lock position for locking the cannuki operating member and an unlocking position for unlocking the cannuki operating member.
An extendable spring provided between the lock member and the output unit of the electric drive device.
In an electric locking / unlocking device including a connecting pin for connecting one end of the spring to the output.
A protective cover member extending toward the other end side of the spring is connected to the output portion.
A connecting member for connecting the lock member to the spring is provided between the lock member and the spring.
The protective cover member is characterized in that it is formed so as to abut in the moving direction of the connecting member with respect to the connecting member that is interlocked when the lock member is switched from the locked position to the unlocked position. Electric locking / unlocking device. In the electric locking / unlocking device according to claim 7.
The connecting member is made of a plate material.
An electric locking / unlocking device characterized in that the protective cover member is provided with a slit into which the connecting member is inserted so as to extend in the moving direction of the connecting member. In the electric locking / unlocking device according to claim 7 or 8.
An electric locking / unlocking device, wherein the protective cover member is connected to the output unit by the connecting pin.

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