JP2009084847A - Locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a key of a locking device installed in a door body to be safely put in charge of the third person such as a security company for security management. <P>SOLUTION: A cylinder 7 of a cylinder lock installed in the door body 1 is internally mounted in a cylinder hole 6b, which is directed in the indoor and outdoor directions of a fixed outer cylinder 6 fixed in a case body 5, in such a manner as to be movable between a normal position eccentric to an indoor side and an abnormality detecting position eccentric to an outdoor side. The locking device is provided with a movable iron core 12a of a solenoid 12 which is excited along with the detection of an abnormality by a security system so as to displace the cylinder 7 to the abnormality detecting position. The locking device comprises the first key 8 which can open the cylinder lock in the normal position of the cylinder 7, and the second key 9 which cannot open the cylinder lock in the normal position of the cylinder 7 though it can open the cylinder lock in the abnormality detecting position of the cylinder 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the technical field of a locking device provided in a door body that opens and closes an opening.

In recent years, security guards such as houses have been equipped with security devices such as peg detection sensors, human sensors, etc. that detect the opening of doors, shutter curtains, and other open / close bodies. If the security system is linked to the security system of a security company and a security incident such as a suspicious person's entry into the premises, destruction of the locking device at the opening or opening of the opening / closing body is confirmed, the security guard rushes to the house. Security services have been proposed for crime prevention management. In this case, if there is any abnormality during the absence of the resident, it is assumed that the security guard will enter the house and perform crime prevention activities even when there is no resident. The company is required to leave a key to unlock the locking device such as the entrance.
However, depositing the key with a security company means that it is difficult for the service recipient to wipe away the distrust that the key will be used to unlock the locking device. This is one of the causes of hesitation to receive services.
On the other hand, a security company that keeps keys also has a problem due to the complexity involved in storing customer keys.

As a measure for improvement, a member (opening / closing plate) that can be remotely operated via an electromagnetic mechanism is attached to a receiving seat provided on the housing side, and the dead bolt is projected (in a locked state) by operating the member. ) That can open the door body is proposed.
Japanese Utility Model Publication No. 58-23881

  However, in the above-mentioned conventional one, it is not necessary to leave the key to the security company, but the opening / closing mechanism itself of the opening / closing plate operated by the electromagnetic mechanism is complicated, and the receiving seat is removed together with the dead bolt from the door body in an emergency. Since it is set as the structure which can be performed, there exists a problem that attachment of the locking device itself does not have versatility, a complicated attachment operation is needed, and it becomes expensive. Further, in this case, when the solenoid is activated in an emergency, the door body can be opened by anyone operating. Therefore, the solenoid is directly connected to the security device constituting the security system and connected to the locking device. A security function cannot be attached, and here is a problem to be solved by the present invention.

The present invention was created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 uses a cylinder lock for a door body that opens and closes the inside and outside of the housing. When installing a locking device, the cylinder of the cylinder lock is movably installed in a cylindrical hole facing the indoor / outdoor direction of a fixed outer cylinder fixed to the door body side, while the cylinder is installed on the indoor side in response to detection of an abnormality in the security device. Displacement means to displace from the normal position biased to the outside to the abnormality detection position biased to the outdoor side, the first key that can unlock the cylinder lock at the normal position of the cylinder, and the cylinder lock unlocked at the cylinder abnormality detection position The locking device is configured to include a second key that can be locked but cannot be unlocked at the normal position of the cylinder.
The invention according to claim 2 is the locking device according to claim 1, wherein the first key is configured so that the cylinder lock can be unlocked even when the cylinder is in the abnormality detection position.
A third aspect of the invention is the locking device according to the first or second aspect, wherein the displacement means is configured by providing a movable iron core of a solenoid that is excited in accordance with an abnormality detection of the security device on the indoor side of the cylinder.
According to a fourth aspect of the present invention, the displacing means is for urging means for urging the cylinder toward the abnormality detection position, a restricting piece for locking the cylinder to the normal position, and detecting an abnormality of the security device. The locking device according to claim 1 or 2, wherein the restricting piece is configured to release the locking with the cylinder based on the displacement of the movable iron core accompanying the excitation of the solenoid. is there.

With the invention of claim 1, the second key can be deposited with security at a security company, and the security of the security company can be reduced.
According to the invention of claim 2, the first key possessed by the resident can unlock the cylinder lock at normal time and at the time of abnormal crime, and is excellent in convenience.
According to the third and fourth aspects of the invention, the displacement of the cylinder can be realized with a simple configuration.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a door body provided at an opening serving as a front door of a house, and the door body 1 is provided with a handle 1a on the door end side which is one in the left-right direction (left side in the present embodiment). The door butt side edge which is the other side (right side) in the left-right direction is pivotally supported by a plurality of hinges 2 so as to be openable and swayable with respect to the door frame 3 which is a member on the housing side, and holds the handle 1a. The door body 1 is configured to be opened and closed by a push operation in the indoor and outdoor directions. In addition, the house of this embodiment is provided with a security device, and is an opening / closing device provided at the entrance / exit, in order to detect a crime prevention abnormality in a front door, a door of a doorway, a window, a shutter device, etc. These detection means are provided in cooperation with the security company, and when a security crime abnormality is detected, the security company's guards rush to perform crime prevention activities.

The door frame 3 is integrally provided on the four circumferences of the housing opening, and is constituted by a pair of left and right vertical frames 3a, an upper frame 3b above the opening, and a hull 3c below the opening. Yes. And the locking device 4 by which this invention was implemented is provided between the vertical frame 3a by the side of a door, and the door-end side of a door body.
The case body 5 constituting the locking device 4 is provided in a state where the outdoor side surface 5a is abutted against the outdoor side face plate 1b of the door body 1 and the door side surface 5b is abutted against the door end side end surface 1c of the door body 1. It has been. The base end portion of the fixed outer cylinder 6 in which the present invention is implemented is attached to the upper portion of the case body 5 via an attachment piece 6a protruding in the outer diameter direction so that the cylinder hole 6b faces the door thickness direction. The distal end portion of the fixed outer cylinder 6 penetrates the outdoor side plate 1b of the door body 1 and protrudes to the outdoor side, and the protruding portion is fixed to the outdoor side plate 1b of the door body 1. It is fixedly supported by the flange portion 1d. Further, the fixed outer cylinder 6 is formed with a projecting piece 6c projecting to the inner diameter side at the cylinder end portion on the outdoor side, and the outdoor side end surface of the projecting piece 6c is the outdoor side end surface of the flange portion 1d of the door body 1. Are arranged so as to be flush with each other.
A cylinder 7 constituting a cylinder lock is mounted in the cylinder hole 6b of the fixed outer cylinder 6 so as to be movable in the cylinder length direction (movable in the door thickness direction and indoor / outdoor direction). The cylinder 7 includes an outer cylindrical body 7a and an inner cylindrical body 7b, and is positioned at a plurality of circumferential directions (two locations in the present embodiment) on the outer peripheral surface of the outer cylindrical body 7a. A guide protrusion 7c that is long in the tube length direction is formed to protrude in the outer diameter direction. On the other hand, a concave groove-like guide groove 6d into which each of the guide protrusions 7c is slidably fitted is formed on the inner peripheral surface of the fixed outer cylinder 6 so as to extend in the cylinder length direction. The movement in the long direction is guided by the guide groove 6d.

  The outer cylinder body 7a and the inner cylinder body 7b of the cylinder 7 can rotate relative to each other, but the movement in the cylinder length direction in the fixed outer cylinder 6 is integrated with the outer cylinder body 7a and the inner cylinder body 7b. Configured to move to. Furthermore, the cylinder 7 includes a plurality of lock pins P configured by a driver pin 7d, a tumbler pin 7e, and a pressing bullet machine 7f that presses them in the axial direction. , The outer cylindrical body 7a and the inner cylindrical body 7b are respectively fitted in recessed holes formed in communication with each other, and the tip of the tumbler pin 7e serving as the distal end of the lock pin P is connected to the cylindrical hole of the inner cylindrical body 7b, That is, the cylinder 7 is disposed so as to protrude into the key hole 7g. Then, by inserting the first and second keys 8 and 9 having the unlocking portions 8a and 9a formed corresponding to the lock pins P into the key holes 7g, the driver pins 7d of the lock pins P are inserted. Will be immersed in the outer cylinder 7a side against the pressing bullet 7f, and only the tumbler pin 7e will be in the unlockable state (cylinder lock unlockable state), and the inner cylinder 7b. Is configured to be rotatable with respect to the outer cylindrical body 7a.

Then, the locking device 4 inserts the first or second key 8 or 9 into the key hole 7g of the cylinder 7 to make it unlockable, and then rotates the first or second key 8 or 9 forward or backward. Thus, the inner cylinder 7b is set to rotate with respect to the outer cylinder 7a, and can be moved into and out of the door end side end surface 1c of the door body 1 based on the forward and reverse rotation of the inner cylinder 7b. The dead bolt 10 provided in the door protrudes from the door end side end surface 1c to lock the door body 1 and the unlocking posture allows the door body 1 to open by immersing inside the door end side end surface 1c. It is configured to change its posture. In addition, the said structure is the same as that of a general purpose cylinder lock. Moreover, 1e is a latch which protrudes and protrudes from the door end side end surface 1c of the door body 1 based on the operation of the handle 1a.
On the other hand, the vertical frame 3a on the door end side is provided with a concave groove-shaped receiving seat 11 facing the dead bolt 10 and the latch 1e, and the dead bolt 10 or The door body 1 is set to be locked and locked by immersing the tip of the latch 1e.

  On the other hand, 12 is a solenoid fixed to the case body 5, and the solenoid 12 includes a movable iron core 12 a that protrudes when power is supplied. These solenoids 12 are connected to the security device that detects that there is an abnormality at the entrance / exit of the entrance of the house, and when the abnormality is detected by the security device, the solenoid 12 is excited to move the movable iron core 12a. It is comprised so that protrusion may be displaced. In the present embodiment, a plurality (two in the present embodiment) of solenoids 12 are arranged so as to face the indoor side ends of the cylinders 7, and the distal ends of the movable iron cores 12 a of the respective solenoids 12. 12b is locked to a recess 7h formed on the indoor side end surface of the outer cylindrical body 7a so as to prevent the outer cylindrical body 7a from being detached. The outer cylindrical body 7a and the inner cylindrical body 7b are integrated together with the projecting displacement of the movable core 12a. The fixed outer cylinder 6 is set so as to be displaced in the cylinder length direction. When the abnormality is not detected by the security device and the solenoid 12 is in the non-excited state (normal state), the movable iron core 12a is located at the non-actuated position, and as shown by the solid line in FIG. The body 7a and the inner cylinder 7b) are set so as to be positioned at the normal position that is biased toward the indoor side. When an abnormality is detected by the crime prevention device from the above state and the solenoid 12 is in an excited state (abnormal state), the movable iron core 12a is projected and displaced to the operating position, and accordingly, the phantom line in FIG. 2 and FIG. 3 are shown. Thus, the cylinder 7 is biased to the outdoor side, and the outdoor side end surfaces of the outer cylindrical body 7a and the inner cylindrical body 7b are forcibly displaced to the abnormality detection position where they abut against the protruding pieces 6c of the fixed outer cylinder 6. Is set to

The first and second keys 8 and 9 have different overall lengths, but the shapes of the unlocking portions 8a and 9a on the distal end side are inserted into the key holes 7g of the cylinder 7 and face each lock pin P as described above. In this case, the inner cylinder 7b of the cylinder 7 is formed in a shape that enables the unlocking in a rotatable state with respect to the outer cylinder 7a.
When the cylinder 7 is in the normal position, the first key 8 having a long overall length is used, and the stepped portion 8b of the first key 8 is fixed to the outer periphery of the key hole 7g. , The unlocking portion 8a is in a state corresponding to each lock pin P, and the cylinder 7 (cylinder lock) can be unlocked. When the key 9 is inserted into the key hole 7g, the stepped portion 9b cannot be inserted into the cylinder 7 by striking the fixed outer cylinder protruding piece 6c, and the unlocking portion 9a is placed at a position corresponding to the lock pin P. The cylinder 7 cannot be positioned and cannot be unlocked.
On the other hand, in the state where the cylinder 7 is displaced to the abnormality detection position, as shown by the solid line in FIG. 3A, the second key 9 having a short overall length is connected to the stepped portion 9b to the fixed outer cylinder protruding piece 6c. The unlocking portion 9a can be positioned at a position corresponding to each lock pin P by being inserted into the keyhole 7g in the butted state, and the cylinder 7 can be set in the unlocked state. Yes. In the state where the cylinder 7 is located at the abnormality detection position, as shown by the phantom line in FIG. 3A, the first key 8 is inserted into the key hole 7g to an appropriate depth, and the unlocking portion 8a is connected to each lock pin. By making it face P, the cylinder 7 can be brought into an unlocked state.

Thus, the locking device 4 can be unlocked only by the first key 8 when the crime prevention abnormality by the security device is not detected and the cylinder 7 is located at the normal position. Then, the full length is short, and the unlocking part 9a cannot be inserted all the way into the keyhole 7g, so that the unlockable state cannot be achieved. Further, when a crime prevention abnormality is detected by the crime prevention device, the cylinder 7 can be unlocked by any one of the first and second keys 8 and 9. As a result, the resident possesses the first key 8 and the second key 9 is entrusted to a crime prevention management company or, in some cases, a real estate agent or a third party such as a landlord, etc. In a normal state where there is no crime abnormality, it is possible to prevent a third party from unlocking it without permission, and to eliminate the anxiety about leaving the second key 9 to a third party. It is configured to be able to.
4 and 5 are diagrams in which the first embodiment is patterned, and the concept of the operation state by the first and second keys 8 and 9 at the normal position and the abnormality detection position of the cylinder 7 is simplified. It is shown in. In these drawings, description of each member is omitted by attaching the same reference numerals as those in FIGS. 1 to 3, but when an abnormality is detected by the security device, the detection switch 13 is switched to the ON state, Thus, the configuration in which the solenoid 12 is excited to cause the movable iron core 12a to project and be displaced and the cylinder 7 is displaced from the normal position to the abnormality detection position is simply shown.
Incidentally, the cylinder 7 displaced to the abnormality detection position due to the crime prevention abnormality ends the crime prevention activity for the crime prevention abnormality, resets the crime prevention device, switches the detection switch 13 to the OFF state, and the movable iron core 12a returns to the non-operation position. Accordingly, it can be displaced together with the movable iron core 12a to return to the normal position.

  In this form configured as described, when a security device installed on the door of the user's door, etc. provided in the house while the resident is absent, a security company security guard etc. Rush and use the second key 9 entrusted to unlock the locking device 4 of the door body 1 provided at the entrance, and enter the house. In this case, the locking device 4 has the cylinder 7 Since the position is shifted to the anomaly detection position that is biased toward the outdoor side, the security guard can make the cylinder 7 unlockable by the second key 9 provided by the resident, and the door body 1 is opened to make an emergency. Time can be dealt with. On the other hand, in the normal use state in which no crime prevention abnormality is detected, the cylinder 7 is located at the normal position that is biased toward the indoor side, so that the cylinder 7 can be unlocked by the second key 9. Can not. As a result, even if the second key 9 is deposited with a third party such as a security company, the locking device 4 cannot be unlocked with the second key 9 unless there is a crime prevention abnormality, and the second key 9 is deposited. For the side, it can be deposited with a sense of security to the third party, and for the side to be deposited, it can be deposited in a state in which the complexity of storage is reduced.

  Moreover, in the case where the present invention is implemented, the first key 8 can bring the cylinder lock into an unlockable state regardless of whether the cylinder 7 is in the normal position or the abnormality detection position. Not only is it convenient, it can increase the sense of security for residents.

  Further, the displacement means for displacing the cylinder 7 from the normal position to the abnormality detection position is a movable iron core 12a protruding by a solenoid 12 that is excited in accordance with the abnormality detection of the security device, and the movable iron core 12a is directly connected to the cylinder 7 to provide a cylinder. 7 is displaced, the configuration for returning from the abnormality detection position to the normal position is also simple, and the configuration can be simplified.

Of course, the present invention is not limited to the above-described embodiment, and can be configured as in the second embodiment shown in FIGS.
In the second embodiment, the fixed outer cylinder 14 fixed to the case body C is provided so as to be freely displaceable between a normal position where the cylinder 15 is biased toward the indoor side and an abnormality detection position where the cylinder 15 is biased toward the outdoor side. The basic structure of the fixed outer cylinder 14 and the cylinder 15, that is, the guide protrusion 15 c of the cylinder 15 formed by the outer cylindrical body 15 a and the inner cylindrical body 15 b in the guide groove 14 a of the fixed outer cylinder 14. The cylinder 15 is displaced while being guided by the guide groove 14a, and the structure of the plurality of lock pins P provided on the cylinder 15 is different, but the unlocking portions 16a and 17a are formed in the same shape. When the first and second keys 16 and 17 are inserted into the keyhole 15d, the first key 16 unlocks the cylinder lock regardless of whether the cylinder 15 is in the normal position or the abnormality detection position. Can the state, such that the second key 17 that can allow state unlocking the lock cylinder only when the cylinder 15 is positioned in the abnormality detection position has the same configuration as the first embodiment. In the second embodiment, the following configuration is implemented in the displacement means for displacing the cylinder 15 to the normal position and the abnormality detection position.

  The displacement means is provided at an indoor side end portion of the cylinder 15, and includes a first biasing machine 18 that biases the cylinder 15 toward the abnormality detection position, a periphery of the fixed outer cylinder 14 and the cylinder outer cylinder 15 a. A restricting body provided with a pair of restricting pieces 19a that are fitted and locked in fitting recesses 15e that are formed at two places in the rotation direction and are formed in communication, and restrict the outer cylinder 15a (cylinder 15) to the normal position. 19. Further, in the displacement means, the restricting body 19 is linked to a movable iron core 20a of a solenoid 20 that is excited when an abnormality is detected in the security device, and the movable iron core 20a is provided with a second urging bullet 20b. Yes. In the non-excited state of the solenoid 20, the movable iron core 20a is in the extended posture in a state where it receives the urging force of the second urging bullet 20b. In this state, the pair of regulating pieces 19a of the regulating body 19 is The cylinder 15 is positioned in a normal position against the first biasing ammunition 18 and is positioned at a restriction position (solid line in FIGS. 7A and 7B) to be fitted in each fitting recess 15e. It is set to regulate. When the solenoid 20 is switched to the excited state, the movable iron core 20a is retracted against the urging force of the second urging bullet 20b. In this state, the restricting body 19 is fitted with the restricting pieces 19a. It is set so as to be displaced to the restriction release position (the imaginary line in FIGS. 7A and 7B) that comes out of the recess 15e. In the state where each restricting piece 19 a is displaced to the restricting release position, the cylinder 15 is pressed by the first biasing ammunition 18 and the outdoor side end face of the outer cylinder 15 a is locked to the protruding piece 14 b of the fixed outer cylinder 14. It is comprised so that it may displace to the abnormality detection position which does.

Incidentally, when the countermeasure against the crime prevention abnormality is completed and the crime prevention device is reset and the detection switch 13 is switched to the OFF state, the movable iron core 20a tries to be displaced to the extended posture. The tip of the restricting piece 19a abuts on the outer peripheral surface of the cylinder outer cylinder 15a located at the abnormality detection position, and further extension is restricted. In this state, when the first key 16 is inserted into the key hole 15d and pushed into the indoor side, the tip of the restricting piece 19a faces the fitting recess 15e, so that the restricting piece 19a is connected to the second urging bullet 20b. The cylinder 15 is placed in the normal position by fitting (falling) into the fitting recess 15e in a state of receiving the urging force, the regulation piece 19a being located at the regulation position, and the movable iron core 20a being transformed into the extended posture. It is set to return to the restricted state.
And even in this case, by leaving the second key 17 to a third party such as a security company or a landlord, it will not be unlocked at normal times, and it seems that a crime prevention abnormality occurred while the resident was away In such cases, it is possible to respond to crime prevention activities by a security company, etc., and it is possible to provide a locking device with excellent crime prevention properties. Moreover, in the first key 16 owned by the resident, the cylinder 15 is in a normal position and abnormal. Since it can be unlocked at any position of the detection position, it is excellent in convenience and a great sense of security can be obtained.

It is a schematic front view of a door body. 2A, 2B, and 2C are a cross-sectional view of the cylinder portion, a front view of the first key, and a front view of the second key, respectively. 3A and 3B are cross-sectional views for explaining the cylinder abnormality detection positions, respectively, and are XX cross-sectional views in FIG. 4 (A), (B), (C) and (D) are respectively a patterned front view of the first key, a patterned front view of the second key, and the first key in the normal position of the cylinder. It is the patterned sectional view explaining the operation state of the second key in the normal position of a cylinder explaining the operation state, and a cylinder. FIGS. 5A and 5B are patterned cross-sectional views for explaining the operation state of the first key at the cylinder abnormality detection position, and patterning for explaining the operation state of the second key at the cylinder abnormality detection position, respectively. FIG. FIGS. 6A, 6B, and 6C are a cross-sectional view, a front view of the first key, and a front view of the second key, respectively, in the second embodiment. FIGS. 7A and 7B are a front view and a cross-sectional view taken along line XX in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door body 4 Locking device 5 Case body 6 Fixed outer cylinder 7 Cylinder 7a Outer cylinder body 7b Inner cylinder body 8 1st key 9a Unlocking part 9 2nd key 10 Dead bolt 12 Solenoid 12a Movable iron core

Claims (4)

  When installing a locking device using a cylinder lock on the door body that opens and closes the inside and outside of the housing, the cylinder of the cylinder lock is movably installed in a cylindrical hole facing the indoor / outside direction of a fixed outer cylinder fixed to the door body side. On the other hand, it is possible to unlock the cylinder lock at the normal position of the cylinder and the displacement means for displacing the cylinder from the normal position that is biased toward the indoor side to the abnormality detection position that is biased toward the outdoor side when the security device is abnormally detected. A locking device configured to include a first key and a second key that can be unlocked at a cylinder abnormality detection position but cannot be unlocked at a normal position of the cylinder.   The locking device according to claim 1, wherein the first key is configured so that the cylinder lock can be unlocked even when the cylinder is in the abnormality detection position.   The locking device according to claim 1 or 2, wherein the displacing means is configured by providing a movable iron core of a solenoid that is excited in accordance with an abnormality detection of the security device on the indoor side of the cylinder.   The displacement means is composed of an urging means for urging the cylinder toward the abnormality detection position, a restricting piece that is locked to the cylinder and restricts the cylinder to the normal position, and a solenoid that is excited when an abnormality is detected in the security device. The locking device according to claim 1, wherein the regulating piece is configured to release the locking with the cylinder based on the displacement of the movable iron core accompanying the excitation of the solenoid.

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