JP5280040B2 - Door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the flexibility of the operating timings and the arrangement on a door of both a dead bolt and a latch stopper by separately driving the dead bolt and the latch stopper in a door device. <P>SOLUTION: In this door device, an electric lock 2 and a latch device 3 are secured to a door body 1. The latch device 3 comprises a latch 4 which has one end projecting from the door body 1 and which is biased to a lock position side and disappearably held in the door body 1 and the latch stopper which is driven by an actuator between a latch restriction position and a restriction release position and which restricts the disappearing operation of the latch 4 at the latch restriction position. The latch stopper can be moved to the restriction release position by a manual operation from the outside of the door body 1. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a door device.

  As a door device equipped with a dead bolt and a latch, one described in Patent Document 1 is known.

In this conventional example, an electric lock portion provided with a dead bolt that is driven and unlocked by an actuator and a latch device portion provided with a latch that is prevented from entering the door by a latch stopper are accommodated in the same case. Fixed to the door. When the actuator is remotely driven and the dead bolt is unlocked from the door frame, the latch stopper connected to the dead bolt via the link mechanism is also retracted from the latch restraint position, and the opening operation to the door is performed. It becomes possible.
JP 2006-37355 A

  However, in the above-described conventional example, the operation of the latch stopper is synchronized with the operation of the dead bolt, and the release of the latch stopper is always performed in response to the immersion operation of the dead bolt. There is a problem of lack of flexibility in operation.

  That is, if the latch restraint is released when the deadbolt is unlocked, the door is easily opened by wind pressure or the like. Therefore, in order to maintain the closed state, it is necessary to keep the deadbolt locked. is there. If the door is locked only to keep the door closed, an authentication operation is required each time the door is opened from the outside, and the unlocking operation is also required when going outside the door temporarily, resulting in poor usability. .

  In addition, since the latch stopper is operated by utilizing the mechanical displacement at the time of immersing the deadbolt, the latch and the deadbolt must be arranged in close proximity as a pair. The degree of freedom in layout of the device portion is reduced.

  The present invention has been made in order to eliminate the above-mentioned drawbacks, and by separately driving a dead bolt and a latch stopper, the door device which increases the operation timing of the both or the degree of freedom of arrangement on the door. The purpose is to provide.

  The door device is formed by fixing the electric lock 2 and the latch device 3 to the door body 1. In order to allow the electric lock 2 and the latch device 3 to be disposed at separate positions, the electric lock 2 and the latch device 3 can be accommodated in the lock case 12 and the latch case 3a, respectively, or can be configured as individual parts, or in the same casing. It can also be arranged and configured as an integral part.

  The latch device 3 includes a latch 4 and a latch stopper 6. The latch 4 projects from the door body 1 to engage with the door frame 7, and engages with the door frame 7 by entering the door body 1. It is movable between the immersion position where the stop is released and is biased toward the locking position.

The latch stopper 6 is driven by a solenoid 5 (actuator) to be driven between the latch restraint position and the restraint release position, and restricts the movement of the latch 4 from the locking position to the immersive position at the latch restraint position.

  The latch 4 whose movement to the immersive position is restricted is locked to the door frame 7 instead of the dead bolt 14 when the electric lock 2 is unlocked and the door is not restrained by the dead bolt 14, and the door is closed. When the electric lock 2 is in the locked state, it functions as a locking body together with the dead bolt 14 of the electric lock 2.

  Further, when the electric lock 2 is in the unlocked state and the latch stopper 6 is in the restraint release position, an opening operation force is applied to the door, or the latch 4 release operation is performed on the door operation handle 15 fixed to the door. In addition, the latch 4 is immersed in the door and the opening operation is allowed. The front end of the latch 4 intersects the orthogonal surface that is orthogonal to and abuts the door frame 7 when the opening operation is performed in the locked state with the door frame 7, and intersects the orthogonal surface at an acute angle to the door frame 7 during the closing operation. If the door is closed when the latch 4 protrudes, the latch 4 is immersed by the component force generated at the contact portion with the door frame 7 on the slope, and the door frame 7 is engaged. Stop. When the door opening operation is performed in this state, the orthogonal plane faces the door frame 7 and no component force in the immersing direction to the latch 4 due to the door opening operation force is generated.

  The latch device 3 may perform a latch releasing operation in advance when the latch 4 is released from the locked state to the door frame 7, that is, the state in which the above-described orthogonal surface is locked to the door frame 7. The latch 4 can be configured to rotate by a predetermined angle using a pressing force applied to the orthogonal surface accompanying the door opening operation so that the orthogonal surface functions as an inclined surface.

  The latch release operation for the former type latch device 3 can be realized, for example, by forcibly immersing the latch 4 in the door in conjunction with the rotation operation to the door operation handle 15. By restricting the immersion operation of the latch 4, the latch release by the latch release operation is restricted. On the other hand, in the latter, that is, in the inversion latch 4 that functions as the inclined surface or the orthogonal surface depending on the rotation posture, the latch stopper 6 restricts the latch release by restricting the rotation of the latch 4.

  In the present invention in which the latch device 3 and the electric lock 2 are independently driven by the actuator 5 and the motor 17, the immersion restriction release of the latch 4 and the locking / unlocking operation of the electric lock 2 can be performed at different timings. For this reason, for example, only the closed state of the door body 1 is maintained by restricting the immersion of the latch 4 while the electric lock 2 is unlocked, or the operating condition of the latch 4 is set as the immersion operation condition of the dead bolt 14 of the electric lock 2. By setting the immersion restriction state and using the latch 4 as a support member for the door frame 7, both are driven at an optimal timing, such as preventing malfunction due to sliding friction with the door frame 7 when the dead bolt is immersed. As a result, operational reliability and usability can be improved.

Further, since the latch device 3 can be operated to release the restraint of the latch 4 from the outside of the door body 1, the latch device 3 can be engaged with the door frame 7 of the latch 4 even when the actuator 5 that drives the latch stopper 6 fails. The stop can be released and the reliability in an emergency is improved.
Moreover, according to the present invention,
A door device in which an electric lock 2 and a latch device 3 are fixed to a door body 1,
The latch device 3 includes a latch 4 that is biased toward a locking position where one end protrudes from the door body 1 and is held in the door body 1 so as to be immersible.
A latch stopper 6 that is driven between the latch restraint position and the restraint release position by the actuator 5 and restricts the immersion operation of the latch 4 at the latch restraint position;
The latch stopper 6 can also provide a door device that can be moved to the restraint release position by a manual operation from the outside of the door body 1.

  As described above, the latch 4 of the latch device 3 can only be used for translational movement or can be used for the inversion latch 4. However, when the inversion latch 4 is used, a special latch immersion mechanism is not required. , The structure becomes simple.

  In addition, the latch stopper 6 is urged toward the latch restraint position and is pivotally supported so that the relative movement of the latch stopper 6 toward the restraint release position is allowed between the actuator 5 and the latch stopper 6. When the link device 9 capable of pressing the latch stopper 6 to the restraint release position is interposed, the operating force is not transmitted to the actuator 5 when the latch stopper 6 is operated from the outside of the door body 1. Since no special mechanism is required on the 5 side for causing the operating force from the latch stopper 6 to be swung, the structure is simplified.

  Further, the link device 9 is interposed between the linear motion link portion 10 that operates following the actuator 5 and the latch stopper 6, and a relay link 11 that absorbs the relative position difference between the actuator 5 and the latch stopper 6. In the case where the arrangement is included, even when the arrangement of the latch 4 in the latch case 3a is changed, the linear link portion 10 and the latch stopper 6 are used as they are, and only the relay link 11 is changed. The operating stroke of the linear link 10 and the operating stroke of the latch 4 can be adjusted. As a result, the actuator 5, the linear motion link portion 10, and the latch stopper 6 can be used as they are even in products with different mounting positions of the latch 4, so that the versatility of parts is improved.

  According to the present invention, since the dead bolt and the latch stopper are driven separately, it is possible to increase the operation timing of the both, or the degree of freedom of arrangement on the door.

  As shown in FIG. 1, the door device is formed by fixing a lock device 16, a door operation handle 15, and a latch operation device 13 to the door body 1, and is rotatable to the door frame 7 by a hinge outside the figure. Used in conjunction.

  The locking / unlocking operation in the locking device 16 is started when an authentication wireless signal transmitted from a portable device possessed by the user is authenticated by the door 1 or a control device (not shown) arranged in the vicinity thereof. . In order to enable the output of the authentication wireless signal to be performed by operating the door 1 in addition to the pressing operation of the locking / unlocking button disposed on the portable device, the control device In this case, a request button for operating the request signal output function can be arranged on the door body 1.

  Further, as will be described later, in response to the latch 4 being formed as an inverted latch and the restraint release of the latch stopper 6 with respect to the latch 4 being performed by the latch drive actuator (actuator 5), the door operation handle 15 is When the latch device 3 that is fixed integrally to the door body 1 but the latch 4 only translates is used, a mechanism for immersing the latch 4 in the door body 1 is incorporated, and the door operation handle is incorporated. 15 is configured to function as an operation component of the latch immersion operation mechanism.

  FIG. 2 shows the lock device 16. FIG. 2 shows that the lock case 12 of the electric lock 2 and the latch case 3a of the latch device 3 are connected to each other. It can also be fixed to the door 1 separately.

  As shown in FIGS. 2 and 3, the electric lock 2 includes a motor 17 accommodated in the lock case 12 and a dead bolt 14 that advances and retracts toward the door frame 7 side. As shown in FIG. 3A, when the motor 17 is driven to unlock from a locked state in which the dead bolt 14 protrudes toward the door frame 7 and is locked to the door frame 7, a gear train 19 accommodated in the gear box 18. , And the deadbolt operation cam 21 rotates clockwise through the rack 20. The arm 21a formed on the deadbolt operation cam 21 by the rotation of the deadbolt operation cam 21 interferes with the unlocked driven portion 14a of the deadbolt 14 so that the deadbolt 14 is moved backward (right side in FIG. 3A). To move the dead bolt 14 to the unlocked position.

  When the motor 17 is driven in the locking direction from this unlocked state, the dead bolt operation cam 21 rotates counterclockwise as shown in FIG. As the deadbolt operation cam 21 rotates, the arm 21a presses the locking driven portion 14b to move the deadbolt 14 to the locking position.

  As shown in FIGS. 4 and 5, the latch device 3 includes a latch 4 held in a latch case 3a. A latch holder 23 whose front and upper and lower side walls are opened and whose rear end is closed by a spring receiving wall 22 is fixed to the latch case 3a, and the latch 4 is accommodated in the latch holder 23 so as to be movable back and forth. The latch 4 has a locking surface 8 parallel to the moving direction of the latch 4 at the front end, and a stopper surface 24 that intersects the locking surface 8 at an acute angle, and a triangular prism-shaped block portion having a horizontal surface 25 at the top and bottom. 26, and the block portion 26 is inserted into the latch holder 23 with the posture exposed from the front opening 23 a of the latch holder 23.

  Further, the latch 4 is provided with a stopper arm 27 projecting rearwardly in the upper and lower side wall openings 23 b and 23 c of the latch holder 23, and a slider 28 is inserted into the latch holder 23 so as to be sandwiched between the pair of stopper arms 27. It is arranged to move back and forth. A compression spring 29 is mounted between the slider 28 and the spring receiving wall 22, and the latch 4 is urged forward by the slider 28. As shown in FIG. 6B, the compression spring 29 is disposed so as to be displaced toward the stopper surface 24.

  Furthermore, cam projections 30 projecting into the upper and lower side wall openings 23b and 23c of the latch holder 23 are provided on the upper and lower surfaces of the block portion 26, and the front end surfaces of the upper and lower side wall openings 23b and 23c are opposed to the cam projection 30. Is formed with a cam receiving surface 23d.

  In the unlocked state, when an operation force in the opening direction is applied to the door from the locked state to the strike opening 7a shown in FIG. 7A, the locking surface 8 of the latch 4 is opposite to the arrow O from the strike opening 7a. Receive direction force. As a result, as shown in FIG. 7B, the latch 4 rotates clockwise until the stopper surface 24 comes into contact with the inner wall surface of the latch holder 23 and shifts to the retractable posture. If the door opening operation is further continued from this state, the engaging surface 8 that is inclined with respect to the door opening direction line receives a component force in the latch retracting direction from the periphery of the strike opening 7 a, and the latch 4 is opposite to the compression spring 29. It enters into the door against the force and detaches from the strike opening 7a (see FIG. 7C).

  Thereafter, when the door body 1 is completely separated from the door frame 7, the latch 4 is pushed forward by the restoring force of the compression spring 29, and the cam protrusion 30 comes into contact with the cam receiving surface 23d. In the posture shown in FIG. 7C, the contact portion between the latch 4 and the slider 28 is deviated in the door opening direction with respect to the contact portion between the cam receiving surface 23d and the cam protrusion 30. , A rotational force acts counterclockwise, and the latch 4 automatically returns to the locked posture.

  When the latch 4 is in the locked posture in the open state, the stopper surface 24 faces the door frame 7. Therefore, when the door is closed from this state, the latch 4 is caused by the immersion force from the stopper surface 24. Once immersed, it is locked to the strike opening 7a.

  As shown in FIGS. 5 and 6, the latch stopper 6 for maintaining the latch 4 in the locked position in the closed state and maintaining the latched state of the latch 4 restrains the movement of the stopper arm 27 of the latch 4. The rotation of the latch 4 is restricted. As shown in FIG. 5, the latch stopper 6 is formed at one end of a stopper lever 31 connected to the latch case 3a. The stopper lever 31 is rotatable about the pivot 32 and is biased by the torsion spring 33 toward the latch restraint position where the latch stopper 6 restrains the latch 4.

  In the solenoid used as the latch driving actuator 5, the non-excitation state shown in FIG. 5A corresponds to the latch 4 restraint state, and the excitation state shown in FIG. 5B corresponds to the restraint release state. A biasing force in the protruding direction is applied to the drive shaft 5 a of the solenoid 5 by the compression spring 36.

  The driving force of the solenoid 5 is transmitted to the stopper lever 31 via a solenoid lever (linear motion link portion 10) connected to the drive shaft 5a of the solenoid 5 and a relay lever (relay link 11). The solenoid lever 10 is rotatable around the pivot 34, and the relay lever 11 is rotatable around the pivot 35. Power transmission from the solenoid lever 10 to the relay lever 11 is transmitted by a protrusion 10 a formed on the solenoid lever 10. 11 is performed by pressing the first pin 11a. Further, the relay lever 11 and the stopper lever 31 are coupled by allowing the second pin 11 b erected on the relay lever 11 to be movably inserted into the long hole 31 a of the stopper lever 31.

  When the solenoid 5 is excited from the latch restraint state shown in FIG. 5A, the solenoid lever 10 rotates counterclockwise as shown in FIG. 5B, and the protrusion presses the first pin 11a. As a result, the relay lever 11 rotates clockwise, the stopper lever 31 rotates counterclockwise, and the latching between the latch stopper 6 and the stopper arm 27 of the latch 4 is released.

  When the excitation of the solenoid 5 is stopped from this restraint release state, the solenoid drive shaft 5a returns to the protruding position shown in FIG. 5A by the restoring force of the compression spring 36, and the solenoid lever 10 returns to the original position. By the return of the solenoid lever 10, the pressing force to the first pin 11 a is released, the counterclockwise rotation restraint with respect to the relay lever 11 is released, and it is biased to the latch restraint position side by the restoring force of the torsion spring 33. The stopper lever 31 moves to the latch restraint position.

  When designing the latch device 3 in which the attachment position of the latch holder 23 is different, the solenoid lever 10 and the latch stopper 6 may be used and only the relay lever 11 may be changed.

  Further, the latch operation device 13 is arranged on the front and back surfaces of the door body 1 so that the latch restraint releasing operation of the latch stopper 6 can be manually performed in an emergency such as failure of the latch driving actuator 5. As shown in FIG. 8, the latch operation device 13 is formed by connecting an operation plate 13b to a case 13a fixed to the door body 1 by an appropriate means so as to be rotatable.

  An operation piece 13c projects from the operation plate 13b toward the inside of the door body 1 and passes through the rectangular access hole 1a provided in the door body 1 and the latch case 3a to be inserted into the latch case 3a. . As shown in FIG. 5, the operation piece 13c is in contact with the folded piece 31b formed on the stopper lever 31, and as shown in FIG. 8C, when the operation plate 13b is rotated around the hinge, the operation piece 13c is latched. The stopper 6 moves to the restraint release position (see FIG. 5B).

  When the operation force to the operation plate 13b is released from this state, the operation piece 13c is pushed along with the return of the stopper lever 31 to the latch restraint position, and the operation plate 13b returns to the original position. In this state, the operation piece 13c is pressed in the overstroke direction from the stopper lever 31, and rattling is prevented.

  In the above, the case where the latch operating device 13 is provided to operate the latch stopper 6 from the outside of the door body 1 is shown, but the access hole 1a is merely provided in the door body 1 and the latch case 3a. May be. In this case, the release operation of the latch stopper 6 is performed by inserting a rod-like tool such as a screwdriver into the access hole 1a. The access hole 1a can be provided with a slide lid or a detachable cap.

  Furthermore, when the access hole 1a is opened in the door body 1 without arranging the latch operation device 13, if the hole communicating with the access hole 1a is formed in the fixing portion of the door operation handle 15 to the door body 1, the design No sense of discomfort.

It is a figure which shows this invention, (a) is a perspective view, (b) is a front view, (c) is a side view. It is a figure which shows a locking device. It is a figure which shows an electric lock, (a) is a figure which shows a locked state, (b) is a figure which shows an unlocked state. It is a figure which shows a latch apparatus, (a) is a perspective view which removes a latch case, (b) is a side view of (a). It is a figure which shows operation | movement of a latch apparatus, (a) is a figure which shows a latch restraint state, (b) is a figure which shows a restraint cancellation | release state. It is a figure which shows a latch, (a) is a side view, (b) is the 6B-6B sectional view taken on the line of (a). It is a figure which shows the operation | movement of a latch, (a) is a figure which shows the latching state to a door frame, (b) is a figure which shows a reverse state, (c) is a figure which shows the detachment | leave state from a door frame. It is a figure which shows a latch operation apparatus, (a) is a perspective view, (b) is sectional drawing, (c) It is sectional drawing which operated the operation plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door body 2 Electric lock 3 Latching device 4 Latch 5 Actuator 6 Latch stopper 7 Door frame 8 Locking surface 9 Link device 10 Linear motion link part 11 Relay link

Claims (4)

A door device in which an electric lock and a latch device are fixed to a door body,
The electric lock and the latch device are independently driven by a motor and a solenoid ,
And the latch device is urged toward the locking position where one end protrudes from the door body, and is latched so as to be immersible in the door body,
A latch stopper that is driven by the solenoid between a latch restraint position and a restraint release position, and that regulates the immersion operation of the latch at the latch restraint position;
The latch stopper is a door device that can be moved to a restraint release position by a manual operation from outside the door body. The latch has a locking posture in which the locking surface to the door frame is substantially perpendicular to the opening trajectory in the closed state, and is inclined with respect to the opening trajectory, and receives a component force in the immersion direction from the door frame during the closing operation. It is formed as a reversing latch that can rotate between skew postures,
The door device according to claim 1, wherein the latch stopper restricts the rotation to the skew position by restraining the latch in the latching posture at the latch restraining position. The latch stopper is urged toward the latch restraint position and is pivotally supported rotatably.
The link device that allows the relative movement of the latch stopper toward the restraint release position and presses the latch stopper to the restraint release position is interposed between the actuator and the latch stopper. Door device.   The door according to claim 3, wherein the link device includes a relay link that is interposed between a linear motion link portion that operates following the actuator and a latch stopper and absorbs a difference in relative position between the actuator and the latch stopper. apparatus.

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