JP2012172327A - Lock device for window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device for a window, capable of appropriately closing an open window even during locking.SOLUTION: A lock device A1 for a window includes a stopper 21 provided on the side of a window door W2, and a locking mechanism 1 provided on the side of a door frame W1. The locking mechanism 1 includes: a latch member 11 supported turnably between a first state in which a hook part 111 interferes with a moving track T of the stopper 21 and a second state in which the hook part 111 does not interfere with the moving track T of the stopper 21; and a lock member 12 capable of selecting a lock position for holding the latch member 11 in the first state and a non-lock position for making the latch member 11 turnable. The lock device A1 for a window includes a latch member withdrawing mechanism 4 for withdrawing the latch member 11 so that the hook part 111 does not interfere with the moving track T of the stopper 21 by moving force of the stopper 21 when the stopper 21 is moved from an opening direction X1 to a closing direction X2 and brought into contact with the hook part 111, in the state of making the lock member 12 take the lock position.

Description

  The present invention relates to a window locking device provided in a window including a door frame and a window door that is fitted in the door frame and moves to open and close.

  In elderly facilities or hospitals, if the windows are kept fully open, they may fall out of the windows and fall, causing a problem in safety management. On the other hand, it is inconvenient if the window is always locked in a fully closed state because ventilation cannot be performed. In order to solve such a problem, a window locking device has been proposed in which the opening width of the window is limited to a predetermined amount that a person cannot leave.

  The conventional window locking device includes, for example, a stopper provided on the window door side and a locking mechanism provided on the door frame side. The locking mechanism includes, for example, a latch member and a lock member, and is accommodated in a case attached to the door frame. The latch member is rotatably supported between an interference state (first state) that interferes with the movement locus of the stopper and a non-interference state (second state) that does not interfere with the movement locus of the stopper. The lock member is configured to take a lock position for holding the latch member in an interference state and a non-lock position for allowing the latch member to rotate. When locking the window lock device, the lock member is locked. Switching between the locked position and the unlocked position of the locking member is performed by, for example, a solenoid. When the lock member takes the locked position, if the window door is moved in the opening direction, the stopper provided in the window door moves in the opening direction and interferes with the latch member, so that the opening of the window is restricted. By appropriately setting the attachment position of the stopper with respect to the window door, the window can be prevented from opening more than a predetermined amount. The technology related to the window locking device is described, for example, in Patent Document 1 below.

  In a facility such as a hospital, the above-described control of the window lock device is performed based on a control signal from a controller provided in a management room or the like that is remote from the installation location of the device, for example. When restricting the opening of the window provided with the window locking device, the solenoid is energized, for example, by operating a changeover switch of the controller, and the lock member takes the locked position. At this time, the latch member is held in an interference state, and even if an attempt is made to open the window, the opening of the window is limited to a predetermined amount due to the interference between the stopper and the latch member.

  Further, in the window locking device disclosed in Patent Document 1, even when a switch operation for restricting opening is performed in a state where the opening of the window is not restricted and the window is sufficiently opened, the latch member is in an interference state. It is controlled not to be held. Specifically, a detection unit is provided for detecting that the window has been opened by the passage of the stopper, and when the detection unit detects that the window is in an open state, a switch operation that performs opening restriction Even if is done, the solenoid is not energized. At this time, the lock member does not take the locked position, and the latch member is not held in the interference state. As a result, the inconvenience that the opened window cannot be closed can be avoided.

  However, the above-described control is not necessarily performed on the window lock device. That is, the control specification of the controller does not correspond to the window lock device provided with the detection unit as described above, but the on / off switching of the window lock device by the switch operation (on / off of energization to the solenoid) In some cases, only switching off) is performed. According to such control, if a switch operation is performed to restrict opening while the window is open, a situation in which the window cannot be closed may occur.

JP 2003-74247 A

  The present invention has been conceived under the circumstances described above, and an object of the present invention is to provide a window locking device that can appropriately close an opened window even during locking.

  The window locking device provided by the 1st side of the present invention is a window locking device provided in a window provided with a door frame, and a window door inserted in this door frame, and opened and closed. A stopper provided on the side, and a locking mechanism provided on the door frame side, the locking mechanism having a hook portion, and the hook portion interferes with the movement locus of the stopper; A latch member supported to be rotatable between a second state in which the hook portion does not interfere with a movement locus of the stopper, a lock position for holding the latch member in the first state, and the latch member. A locking member that can select a non-locking position that can be rotated, and in a state where the locking member is in the locking position, the stopper moves from the opening direction to the closing direction and moves to the hook portion. When contact is made, By the moving force, the hook portion is characterized by comprising a latch member retraction mechanism for retracting the latch member so as not to interfere with the movement locus of the stopper.

  In a preferred embodiment of the present invention, the latch member retracting mechanism moves the latch member in the closing direction and moves away from the movement locus of the stopper as the stopper moves in the closing direction. And a biasing member for applying a biasing force in the opening direction, and a direction for rotating the latch member from the second state toward the first state. Have.

  In a preferred embodiment of the present invention, the latch member is supported by a case that accommodates the latch member, and the guide mechanism includes a guide hole provided in either the latch member or the case; A shaft portion that is provided on the other side of the latch member or the case and that fits into the guide hole, and the guide hole as a whole moves away from the movement locus of the stopper in the direction from the opening direction to the closing direction. Inclined to do.

  In a preferred embodiment of the present invention, the guide hole extends in a direction along the movement trajectory of the stopper, and is connected to the first portion, and approaches or moves away from the stopper movement trajectory. And a second portion extending to the center.

  In a preferred embodiment of the present invention, the biasing member includes a tension coil spring coupled to the case and the latch member, and one end of the tension coil spring has the latch member connected to the first member. At the position displaced in the opening direction from the hook portion when taking the one state, the other end portion of the tension coil spring is moved with respect to the movement locus of the stopper rather than the one end portion. It is connected to the latch member at a position displaced in the separating direction.

  In a preferred embodiment of the present invention, the locking mechanism includes a solenoid that moves the lock member between the lock position and the non-lock position, and the lock member includes the solenoid. The locked position is taken when energized, and the unlocked position is taken when the solenoid is not energized.

  In a preferred embodiment of the present invention, the stopper includes first and second stoppers spaced apart in the opening / closing direction of the window door, and the first stopper includes the window door being fully closed or substantially fully open. In the closed state, the window door is prevented from moving in the opening direction due to the interference with the hook portion, and the second stopper is configured so that the window door is opened in a predetermined amount from the fully closed state. The window door is further prevented from moving in the opening direction due to interference with the hook portion.

  In a preferred embodiment of the present invention, there is further provided a detecting means for detecting whether or not the window door is in a state of being fully closed or substantially fully closed.

  In another preferred embodiment of the present invention, the latch member retracting mechanism has a first force for applying a biasing force in a direction in which the latch member rotates from the first state toward the second state. An urging member, a first cam mechanism for rotating the latch member from the second state to the first state as the lock member moves from the non-lock position to the lock position, and the lock A rotation mechanism that rotates the member around a rotation axis that is separated from the latch member, and the lock member is rotated from a position that is separated from the movement locus of the stopper toward a position that is close to the movement locus of the stopper. When the second biasing member for applying a biasing force in the direction and the latch member are in the first state, the latch member is moved upward by moving the stopper from the opening direction to the closing direction. A second cam mechanism for rotating toward the second state, with, the urging force of the second urging member, is larger than the biasing force of the first urging member.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a front view which shows the use condition which provided the window locking device which concerns on this invention in the window. It is sectional drawing which follows the II-II line of FIG. It is sectional drawing which follows the III-III line of FIG. It is principal part sectional drawing in alignment with the IV-IV line of FIG. It is a figure similar to FIG. 3 which shows the one aspect | mode at the time of use of the window locking device. It is a figure similar to FIG. 3 which shows the one aspect | mode at the time of use of the window locking device. It is a figure similar to FIG. 3 which shows the one aspect | mode at the time of use of the window locking device. It is a block diagram which shows the structure which concerns on control of the window locking device. It is a figure which shows an example of an operation panel. It is a flowchart which shows an example of control of the window locking device. It is a figure similar to FIG. 3 which shows the other example of the window locking device which concerns on this invention. It is a figure similar to FIG. 11 which shows the one aspect | mode at the time of use of the window locking device. It is a figure similar to FIG. 11 which shows the one aspect | mode at the time of use of the window locking device. It is a figure similar to FIG. 11 which shows the one aspect | mode at the time of use of the window locking device. It is a figure similar to FIG. 11 which shows the one aspect | mode at the time of use of the window locking device.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1 to 4 show an example of a window locking device according to the present invention. As shown in FIGS. 1 and 2, the window locking device A1 of the present embodiment includes a locking mechanism 1 and a stopper member 2, and is used for limiting the opening of the window by being provided on the window. Is. The window W in which the window locking device A1 is provided includes a door frame W1 and a window door W2 that is fitted in the door frame W1 and moves to open and close, and is a type called a sliding door or a sliding door. It is. In FIG. 2, the internal structure of the locking mechanism 1 is omitted.

  The locking mechanism 1 is accommodated in a case 3, and the case 3 is attached to an appropriate portion of the upper frame portion of the door frame W1 by means (not shown) such as screws. Thereby, the locking mechanism 1 is provided in the door frame W1 side.

  The case 3 has a substantially rectangular parallelepiped shape with the opening / closing movement direction of the window door W2 as the longitudinal direction. A guide plate 31 is provided on the inner surface of the wall portion facing the top and bottom of the case 3. As will be described in detail later, the guide plate 31 is formed with a guide hole 32 for supporting a shaft portion 113 of the latch member 11 described later in a rotatable and movable manner. In addition, an opening 33 is formed in the side wall of the case 3 so as to allow a hook portion 111 of the latch member 11 described later to appear and disappear.

  The stopper member 2 is provided on the window door W2, and is attached to an appropriate portion of the frame portion on the upper side of the window door W2 by means such as screwing (not shown). As shown in FIG. 3, the stopper member 2 is located close to the case 3 and moves in the opening direction X1 or the closing direction X2 with the opening / closing movement of the window door W2. The stopper member 2 has stoppers 21 and 22 protruding to the case 3 side, and these stoppers 21 and 22 are separated in the opening / closing direction of the window door W2. Although details will be described later, the stopper 21 is for preventing the window door W2 from moving in the opening direction X1 when the window door W2 is fully closed or substantially fully closed. This is to prevent the window door W2 from further moving in the opening direction X1 when the door W2 is opened by a predetermined amount (for example, about 13 cm) from the fully closed state. These stoppers 21 and 22 take a linear movement trajectory T (a portion shown dark in the drawing) when the window door W2 is opened and closed.

  As shown in FIGS. 3 and 4, the locking mechanism 1 includes a latch member 11, a lock member 12, and a solenoid 13. The latch member 11 has a plate shape as a whole, and includes a hook portion 111 located on the distal end side and a locking portion 112 located on the proximal end side. Between the hook part 111 and the locking part 112 of the latch member 11, a shaft part 113 extending in a penetrating manner in the thickness direction is provided. Both ends of the shaft portion 113 are fitted in the guide holes 32 of both guide plates 31. Thereby, the latch member 11 is supported by the case 3 so as to be rotatable and movable.

  The hook portion 111 is a portion that protrudes and retracts from the opening 33 of the case 3 and interferes with the stoppers 21 and 22. The hook portion 111 interferes with the movement trajectory T of the stoppers 21 and 22 (see FIG. 3) A non-interfering state (see FIG. 5: indicated by an imaginary line in the figure) that does not interfere with the movement trajectory T of FIG. In this embodiment, the hook part 111 has the inclined surface 111a which approaches the stopper member 2 as it goes to the closing direction X2 from the opening direction X1 of the window door W2.

  Although the details will be described later, the engaging portion 112 restricts the rotation of the latch member 11 from the interference state (first state) to the non-interference state (second state) by the engagement with the lock member 12. Is for.

  In the present embodiment, the latch member 11 is given a biasing force by the case 3 and the two tension coil springs 14 (biasing members) connected to the latch member 11. Specifically, as shown in FIGS. 3 and 4, one end of the tension coil spring 14 is at a position displaced in the opening direction X <b> 1 from the hook portion 111 when the latch member 11 is in the interference state. , And is connected to the case 3 via the bar 34. The other end of the tension coil spring 14 is connected to the latch member 11 via the bar 114 at a position displaced in the direction Y1 away from the movement trajectory T of the stoppers 21 and 22 from the one end. Yes. As a result, the latch member 11 is always applied with a biasing force in the direction of rotating from the non-interference state to the interference state and in the opening direction X1, and when no external force is applied, the latch member 11 is in the interference state shown in FIG. I'm taking it.

  The lock member 12 is for holding the latch member 11 in an interference state when the window lock device A1 is locked, and is connected to the actuator 131 of the solenoid 13. The lock member 12 takes a lock position (see FIG. 3) that advances to the latch member 11 side and a non-lock position (see FIG. 5) that retreats from the latch member 11 side according to the movement of the actuator 131.

  The solenoid 13 is for moving the lock member 12 between the locked position and the unlocked position. When the solenoid 13 is energized, as shown in FIG. 3, the actuator 131 advances to the latch member 11 side, and the lock member 12 takes the locked position. At this time, the latch member 11 in the interference state is restricted from rotating by the engagement of the locking portion 112 and the lock member 12 even when a force for rotating in the direction of taking the non-interference state is applied. The That is, when the lock member 12 takes the locked position, the latch member 11 is held in an interference state. On the other hand, when the solenoid 13 is not energized, as shown in FIG. 5, the actuator 131 is retracted from the latch member 11 side by the urging force of the compression coil spring 132, and the lock member 12 assumes the unlocked position. At this time, the lock member 12 and the engaging portion 112 of the latch member 11 are separated from each other, and the latch member 11 can be rotated from the interference state to the non-interference state.

  As shown in FIG. 5, when the lock member 12 takes the unlocked position, when the window door W2 is opened from the closed state, the stopper 21 (22) contacts the hook portion 111, and the stopper 21 (22 ), The latch member 11 is rotated toward the non-interference state against the urging force of the tension coil spring 14. By the rotation of the latch member 11, the stopper 21 (22) can be moved in the opening direction X1 beyond the hook portion 111. In addition, when the lock member 12 takes the unlocked position, the latch member 11 rotates toward the non-interference state against the urging force of the tension coil spring 14 even when the window door W2 is closed from the opened state. Be moved. By the rotation of the latch member 11, the stopper 21 (22) can be moved in the closing direction X2 beyond the hook portion 111. Therefore, when the lock member 12 takes the unlocked position, the window door W2 can be opened and closed without hindrance.

  The window locking device A1 of the present embodiment further includes a latch member retracting mechanism 4. The latch member retracting mechanism 4 prevents the hook portion 111 from interfering with the movement trajectory T of the stoppers 21 and 22 by the closing direction X2 moving force of the stoppers 21 and 22 when the lock member 12 is in the locked position. The latch member 11 is retracted, and has a guide mechanism and a tension coil spring 14.

  When moving the stoppers 21 and 22 from the opening direction X1 to the closing direction X2, the guide mechanism moves the latch member 11 in the closing direction X2 and in a direction away from the movement locus T of the stoppers 21 and 22. belongs to. In the present embodiment, the guide hole 32 provided in the case 3 and the shaft portion 113 provided in the latch member 11 serve as a guide mechanism.

  As shown in FIG. 3, the guide hole 32 includes a first portion 321 and a second portion 322 connected to the first portion 321, and as a whole, the opening direction X1 of the window door W2 is changed to the closing direction X2. Inclined so as to move away from the movement trajectory T of the stoppers 21 and 22 as it goes to. The first portion 321 extends in a direction along the movement locus T of the stoppers 21 and 22, and the second portion 322 extends in directions Y1 and Y2 that are close to or away from the movement locus T of the stoppers 21 and 22. ing. As shown in FIG. 3, when the latch member 11 is in the interference state, the shaft portion 113 is located at the end of the first portion 321.

  With the above configuration, when the stoppers 21 and 22 move from the opening direction X1 to the closing direction X2 and come into contact with the hook portion 111 in a state where the locking member 12 is in the locked position, the stoppers 21 and 22 move more than a predetermined amount. Due to the force, the latch member 11 is moved against the urging force of the tension coil spring 14. At this time, as shown in FIG. 6, the latch member 11 is first moved in the closing direction X <b> 2 by the shaft portion 113 moving along the first portion 321 of the guide hole 32. Further, when the stopper 21 (22) is moved in the closing direction, as shown in FIG. 7, the latch member 11 has the shaft portion 113 of the stoppers 21 and 22 along the second portion 322 of the guide hole 32. While moving away from the movement locus T, the latch member 11 rotates in the counterclockwise direction in the drawing. As understood from this, even when the lock member 12 is in the locked position, if the stopper 21 (22) is moved in the closing direction X2, the hook 21 is hooked by the moving force of the stopper 21 (22). The portion 111 is retracted, and the stopper 21 (22) can be moved in the closing direction X2 beyond the hook portion 111. After the stopper 21 (22) exceeds the hook portion 111, the latch member 11 returns to the interference state by the elastic restoring force of the tension coil spring 14.

  The window locking device A <b> 1 of the present embodiment includes a magnet sensor 5. The magnet sensor 5 detects whether the window door W2 is in a fully closed state or a substantially fully closed state, and includes a sensor main body 51 and a magnet 52. The sensor body 51 is provided at the end of the case 3 in the closing direction X2 of the window door W2, and the magnet 52 is provided at the end of the stopper member 2 in the closing direction X2 of the window door W2. The magnet sensor 5 detects whether or not the magnet 52 is located within a predetermined range from the sensor body 51.

  The window lock device A1 of the present embodiment is installed in an elderly facility or a hospital, for example, and is remotely operated by a control unit provided in a management room or the like away from the installation location of the window lock device A1. For example, an unillustrated power supply line or signal line is connected to the window locking device A1, and the window locking device A1 (solenoid 13) is controlled based on a control signal from the controller C.

  FIG. 8 is a block diagram showing a configuration related to the control of the window locking device A1. As shown in the figure, the controller C cooperates with a plurality of window locking devices A1 installed in the facility, and centrally manages these window locking devices A1.

  In each window lock device A1, the magnet sensor 5 (sensor body 51) detects the magnetic force of the magnet 52 when the magnet 52 provided on the stopper member 2 is located within a predetermined range from the sensor body 51. The detection signal is output to the controller C on the assumption that the window door W2 is fully closed or substantially fully closed. And if the window door W2 opens until the stopper 21 exceeds the hook part 111, the magnet sensor 52 will not detect magnetic force, and a detection signal will not be output to the controller C. In this way, whether or not the window door W2 is fully closed or substantially fully closed is detected for the window W provided with the window locking device A1 based on the presence or absence of the detection signal from the magnet sensor 5.

  The locking and unlocking of the window locking device A1 is performed by switching on / off the energization of the solenoid 13. That is, the controller C outputs a control signal for energizing the solenoid 13 when the window locking device A1 is locked, and outputs a control signal for turning off the energization of the solenoid 13 when the window locking device A1 is unlocked. The modes of the lock member 12 and the latch member 11 when the solenoid 13 is energized and not energized are as described above with reference to FIGS. 3 and 5 to 7. The controller C is configured by an electronic circuit including a microcomputer, for example, and can control the window locking device A1. In addition, input / output of signals between the window locking devices A1 and the controller C can be performed by either wired or wireless methods.

  The window locking device A1 of the present embodiment can be switched between three modes: locking in the fully closed state of the window W, locking in the restricted open state (winding), and fully opening (unlocking) according to the usage situation. Has been. These modes are switched by operating the selector switch of the controller C.

  FIG. 9 shows an example of the operation panel P of the controller C. The operation panel P is provided with switches S1, S2, and S3 indicating “locking”, “winding”, and “unlocking”, and an LED lamp L for displaying “door opening”.

  FIG. 10 is a flowchart illustrating an example of control in each mode. FIG. 10A shows the control flow of the locking mode. When the locking switch is operated (S10), the solenoid 13 is energized, and the window locking device A1 enters the locked state (locked state) (S11). At this time, regardless of whether or not the window door W2 is closed, the lock member 12 takes the locked position by the operation of the solenoid 13. The latch member 11 is held in an interference state and its rotation is restricted.

  In the locking mode, when the window door W2 is closed, even if an attempt is made to open the window door W2, the window door W2 moves in the opening direction due to interference between the stopper 21 and the hook portion 111 of the latch member 11. That is blocked. On the other hand, when the window door W2 is open in the locking mode, when the window door W2 is closed, the stopper 21 (22) and the hook portion 111 come into contact with each other. At this time, as described above, the latch member retracting mechanism 4 functions and the hook portion 111 retracts due to the moving force of the stopper 21 (22) accompanying the movement of the window door W2 in the closing direction X2. Then, the stopper 21 (22) moves in the closing direction X2 beyond the hook portion 111. After the stopper 21 (22) exceeds the hook portion 111, the latch member 11 returns to the interference state by the elastic restoring force of the tension coil spring 14. Thereafter, even if the window door W2 is opened, the window door W2 is prevented from moving in the opening direction X1 due to the interference between the stopper 21 (22) and the hook portion 111.

  FIG. 10B shows a control flow in the wind sampling mode. When the wind sampling switch is operated (S20), it is first determined whether or not the window door W2 is closed (S21). Whether or not the window door W2 is closed is always determined based on the presence or absence of a detection signal from the magnet sensor 5. When a detection signal is output from the magnet sensor 5, that is, when the window door W2 is closed (S21: YES), the solenoid 13 is not energized and the window lock device A1 is in an unlocked state (unlocked state). (S22). At this time, the lock member 12 is in the non-lock position, and the latch member 11 is rotatable from the interference state to the non-interference state. Here, when the window door W2 is opened (S23), the stopper 21 comes into contact with the hook portion 111. At this time, the latch member 11 rotates toward the non-interference state by the moving force of the stopper 21 accompanying the movement of the window door W2 in the opening direction X1 (counterclockwise in FIG. 5). When the stopper 21 moves in the opening direction X1 until it exceeds the hook portion 111, no detection signal is output from the magnet sensor 5 (S24: YES). When the detection signal from the magnet sensor 5 is turned off, the solenoid 13 is energized, and the window locking device A1 enters the locked state (locked state) (S25). Here, when the window door W2 is further opened, the stopper 22 and the hook portion 111 interfere with each other. At this time, the window door W2 is prevented from moving in the opening direction X1, and the opening width of the window door W2 is limited to a predetermined amount.

  In step 21, when no detection signal is output from the magnet sensor 5, that is, when the window door W2 is open (S21: NO), the solenoid 13 is energized and the window locking device A1 is locked (locked state). (S26). When the window door W2 is open to a position where the stopper 22 exceeds the hook portion 111 in the wind sampling mode (open limit), the stopper 22 and the hook portion 111 come into contact with each other when the window door W2 is closed. At this time, when the latch member retracting mechanism 4 functions, the window door W2 can be closed in the same manner as described above regarding the locking mode.

  FIG. 10C shows a control flow in the unlocking mode. When the unlocking switch is operated (S30), the solenoid 13 is not energized, and the window locking device A1 enters the unlocked state (unlocked state) (S31). At this time, the lock member 12 is in the non-lock position, and the latch member 11 is rotatable from the interference state to the non-interference state. Here, in either case where the window door W2 is opened from the closed state or in the case where the window door W2 is closed from the opened state, after the stopper 21 (22) contacts the hook portion 111, the window door is opened. The latch member 11 is rotated toward the non-interference state by the moving force of the stopper 21 (22) as W2 moves in the opening direction X1 or the closing direction X2. Therefore, in the unlocking mode, the window door W2 can be freely opened and closed.

  When the window locking device A1 is used, whether the window W provided with the window locking device A1 is in the open state or the closed state can be identified by the display of the LED lamp L. For example, based on the presence or absence of a detection signal from the magnet sensor 5, the LED lamp L is turned on when the window door W2 is open, and the LED lamp L is blinked when the window door W2 is closed.

  The window locking device A1 of this embodiment includes a latch member retracting mechanism 4. For this reason, even if the window locking device A1 is in a locked state with the window door W2 open, the window door W2 can be closed as described above. Therefore, there is no inconvenience that the window door W2 cannot be closed even if the window door W2 is opened and switched to locking or wind.

  The latch member retracting mechanism 4 includes a guide mechanism and a tension coil spring 14 (biasing member). Accordingly, the latch member 11 can be retracted while the stopper 21 (22) is in contact with the latch member 11 (hook portion 111) as the stopper 21 (22) moves in the closing direction X2. And after the stopper 21 (22) passes the hook part 111, the latch member 11 returns to the original interference state by the elastic restoring force of the tension coil spring 14, and the window locking device A1 is maintained in the locked state. Therefore, according to such a configuration, the latch member retracting mechanism 4 can function appropriately.

  As a whole, the guide hole 32 constituting the guide mechanism is inclined so as to be separated from the movement locus T of the stopper 21 (22) as it goes from the opening direction X1 of the window door W2 to the closing direction X2. According to such a configuration, the latch member 11 can be moved smoothly and smoothly with the movement of the stopper 21 (22) in the closing direction X2.

  The guide hole 32 includes first and second portions 321 and 322 having different extending directions, and the shaft portion 113 is positioned at the end portion of the first portion 321 when the latch member 11 is in an interference state. According to such a configuration, the rotation operation of the latch member 11 between the interference state and the non-interference state is stabilized.

  In this embodiment, the stoppers 21 and 22 spaced apart in the opening / closing direction of the window door W2 are provided. Furthermore, it has the magnet sensor 5 which detects whether the window door W2 is closed. According to such a configuration, as described above with reference to the flowchart of FIG. 10, switching among the three modes of locking, winding, and unlocking can be appropriately performed in accordance with the use situation.

  11 to 15 show other examples of the window locking device according to the present invention. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and description thereof will be omitted as appropriate.

  In the window locking device A2 of this embodiment, the configuration of the latch member retracting mechanism 4 is different from that of the above embodiment, and various changes are made accordingly. FIG. 11 and FIG. 12 show the time when the window locking device A2 is in the locked state (locked state), and the lock member 12 is in the locked position. In this embodiment, the guide mechanism of the above embodiment is not provided, and the latch member 11 is rotatably supported by the case 3. A torsion coil spring 15 (first urging member) is attached to the shaft portion 113 of the latch member 11, and the latch member 11 is rotated from the interference state to the non-interference state by the torsion coil spring 15. A biasing force in the direction (counterclockwise in the figure) is applied. As a result, as shown in FIG. 13, when the lock member 12 takes the non-lock position in which the lock member 12 moves backward from the latch member 11 side, the latch member 11 takes a non-interference state due to the biasing force of the torsion coil spring 15.

  In the present embodiment, a cam mechanism 41 (first cam mechanism) that rotates the latch member 11 from the non-interference state to the interference state is provided. The cam mechanism 41 includes a tip inclined surface 121 of the lock member 12 and an inclined surface 115 of the latch member 11. As understood from FIGS. 11 and 13, when the lock member 12 moves from the non-lock position to the lock position, the latch member 11 rotates from the non-interference state to the interference state along with this movement (see FIG. 11). Inside clockwise).

  The solenoid 13 is supported by the case 3 via a plate 35, and the plate 35 is rotatable around a rotation shaft 36 provided at an end portion in the opening direction X1. Accordingly, the lock member 12 and the solenoid 13 can be rotated around the rotation shaft 36 that is separated from the latch member 11. Further, the torsion coil spring 16 (second urging member) is attached to the rotation shaft 36, and the lock member 12 approaches the movement locus T from a position away from the movement locus T of the stoppers 21 and 22. An urging force in a direction of rotating toward the position (counterclockwise in the figure) is applied. The rotation of the lock member 12 and the solenoid 13 due to the urging force is restricted by the housing 133 of the solenoid 13 and the side wall 37 of the case 3 coming into contact with each other.

  The biasing force of the torsion coil spring 16 is larger than the biasing force of the torsion coil spring 15. Accordingly, as described above with reference to FIGS. 11 and 13, when the lock member 12 moves from the non-lock position to the lock position, the latch member 11 resists the biasing force of the torsion coil spring 15 from the non-interference state. It is rotated to the interference state.

  In the present embodiment, the stoppers 21 and 22 have hook-shaped engaging portions 211 and 221. Further, as shown in FIGS. 11 and 12, the hook portion 111 of the latch member 11 is engaged with the engaging portion 211 by the movement of the stopper 21 (22) in the opening direction X1 when the latch member 11 is in the interference state. The shape can be engaged with (221). Then, in the state where the hook portion 11 and the engaging portion 211 shown in FIG. 12 are engaged, the latch member 11 is turned to the non-interference state (counterclockwise in the drawing), and the stopper 21 is opened. Movement in the direction X1 is prevented.

  As shown in FIG. 14, in this embodiment, when the latch member 11 is in the interference state, the latch member 11 is moved to the non-interference state by the movement of the stoppers 21 and 22 from the opening direction X1 to the closing direction X2. A rotating cam mechanism 42 (second cam mechanism) is provided. The cam mechanism 42 includes inclined surfaces 212 and 222 of the stoppers 21 and 22 and an inclined surface 116 of the latch member 11. With such a configuration, when the stopper 21 (22) moves from the opening direction X1 to the closing direction X2 in contact with the hook portion 111 in a state where the lock member 12 is in the locked position, the stopper 21 (more than a predetermined amount) 22), the latch member 11 is rotated counterclockwise in the figure against the urging force of the torsion coil spring 16 (see FIG. 15). As understood from this, even when the lock member 12 is in the locked position, if the stopper 21 (22) is moved in the closing direction X2, the hook 21 is hooked by the moving force of the stopper 21 (22). The portion 111 is retracted, and the stopper 21 (22) can be moved in the closing direction X2 beyond the hook portion 111. After the stopper 21 (22) exceeds the hook portion 111, the latch member 11 returns to the interference state by the elastic restoring force of the torsion coil spring 16.

  When the window locking device A2 of the present embodiment is used, the three modes can be switched in the same manner as described above with reference to FIG.

  The window locking device according to the present invention is not limited to the embodiment described above. The specific configuration of each part of the window locking device according to the present invention can be varied in design in various ways.

  In the window locking device A1 described above, the shaft member 113 is provided in the latch member 11 and the guide hole 32 is provided in the case 3, but the present invention is not limited to this. For example, the latch member 11 may have a guide hole and the case 3 may have a shaft portion.

A1, A2 Window locking device T Movement locus X1 Opening direction X2 Closing direction Y1 (Departing from movement locus) Direction Y2 (Close to movement locus) Direction 1 Locking mechanism 2 Stopper member 3 Case 4 Latch member retraction mechanism 5 Magnet sensor (Detection means)
11 Latch member 111 Hook part 112 Locking part 113 Shaft part 114 Bar 115 Inclined surface 12 Lock member 121 Tip inclined surface 13 Solenoid 131 Actuator 132 Compression coil spring 133 Housing 14 Tensile coil spring (biasing member)
15 Torsion coil spring (first biasing member)
16 Torsion coil spring (second biasing member)
21 Stopper (first stopper)
22 Stopper (second stopper)
211, 221 Engaging portions 212, 222 Inclined surface 31 Guide plate 32 Guide hole 33 Opening 34 Bar 35 Plate 36 Rotating shaft 37 Side wall 41 Cam mechanism (first cam mechanism)
42 Cam mechanism (second cam mechanism)

Claims (9)

A window locking device provided in a window comprising a door frame and a window door fitted into the door frame and moved to open and close,
A stopper provided on the window door side, and a locking mechanism provided on the door frame side,
The locking mechanism is
A latch having a hook portion and rotatably supported between a first state in which the hook portion interferes with the movement locus of the stopper and a second state in which the hook portion does not interfere with the movement locus of the stopper. Members,
A lock member capable of selecting a lock position for holding the latch member in the first state and a non-lock position for allowing the latch member to rotate;
When the stopper is moved from the opening direction to the closing direction in contact with the hook portion in a state where the locking member is in the locked position, the hook portion is moved by the moving force of the stopper. A window lock device comprising a latch member retracting mechanism for retracting the latch member so as not to interfere with a locus. The latch member retracting mechanism is
A guide mechanism for moving the latch member in the closing direction and moving the latch member in a direction away from the movement locus of the stopper as the stopper moves in the closing direction;
The window according to claim 1, further comprising: a biasing member for applying a biasing force in the opening direction and a direction in which the latch member rotates from the second state toward the first state. Locking device. The latch member is supported by a case that accommodates the latch member,
The guide mechanism includes a guide hole provided in one of the latch member or the case, and a shaft portion provided in the other of the latch member or the case and fitted in the guide hole,
The window locking device according to claim 2, wherein the guide hole as a whole is inclined so as to be separated from the movement locus of the stopper as it goes from the opening direction to the closing direction.   The guide hole has a first portion extending in a direction along the movement locus of the stopper, and a second portion connected to the first portion and extending in a direction approaching or separating from the movement locus of the stopper. Item 4. The window locking device according to Item 3. The urging member includes a tension coil spring coupled to the case and the latch member,
One end of the tension coil spring is connected to the case at a position displaced in the opening direction from the hook when the latch member takes the first state,
The other end of the tension coil spring is connected to the latch member at a position displaced in a direction away from the movement trajectory of the stopper from the one end. The window lock device described in 1. The locking mechanism includes a solenoid that moves the lock member between the locked position and the unlocked position;
The window locking device according to any one of claims 1 to 5, wherein the lock member takes the lock position when the solenoid is energized and takes the unlock position when the solenoid is not energized. The stopper includes a first stopper and a second stopper that are spaced apart in the opening / closing direction of the window door,
The first stopper prevents the window door from moving in the opening direction due to interference with the hook portion when the window door is fully closed or substantially fully closed.
7. The second stopper according to claim 1, wherein the second door prevents the window door from further moving in the opening direction due to interference with the hook portion when the window door is opened by a predetermined amount from the fully closed state. The window locking device according to any one of the above.   The window locking device according to claim 7, further comprising detection means for detecting whether or not the window door is in a fully closed state or a substantially fully closed state. The latch member retracting mechanism is
A first biasing member for applying a biasing force in a direction in which the latch member rotates from the first state toward the second state;
A first cam mechanism for rotating the latch member from the second state to the first state as the lock member moves from the unlocked position to the locked position;
A rotation mechanism for rotating the lock member around a rotation axis spaced from the latch member;
A second urging member for applying an urging force in a direction to rotate the lock member from a position away from the movement locus of the stopper toward a position close to the movement locus of the stopper;
A second cam mechanism for rotating the latch member toward the second state by moving the stopper from the open direction to the close direction when the latch member assumes the first state; ,
2. The window locking device according to claim 1, wherein an urging force of the second urging member is greater than an urging force of the first urging member.