JP2007120079A - Automatic locking device for sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic locking device for a sliding door simply structured and capable of closing and locking the sliding door with reduced cost for convenience. <P>SOLUTION: In this automatic locking device 100 for the sliding door installed on the sliding door and a non-opening/closing body, the non-opening/closing body comprises a strike 17, a first magnet 19, and a second magnet 21. The sliding door comprises a hook-like bolt 31, a linearly reciprocatingly moving slide bracket 35 having a rack engaged with the hook-like bolt 31, a stopper arm 53 locked to the hook-like bolt 31, a slide base 59 reciprocatingly linearly moving so as to selectively face a first magnet 19 or a second magnet 21, and a magnet trigger 65 rotated in the direction that the stopper arm 53 is locked and released by a magnetic repulsion when it faces the first magnet 19. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automatic locking device for sliding doors that is suitable for use in doors, particularly open / close bodies such as sliding doors, sliding doors, windows, and the like.

  Generally, a locking device provided on a door that is opened and closed with a hinge as a suspension base moves a dead bolt forward and backward in a linear reciprocating direction from the door's mouth, and this dead bolt is inserted into a strike hole provided on the door frame side. Enter and lock. On the other hand, a locking device may be provided even in a so-called sliding door that opens and closes along a groove or the like. For example, a simple locking device provided in a dressing room, a sliding door of a toilet, etc. has a lock box in the door tip, and a hook-like bolt that is rotatably supported around a rotation shaft in the lock box. Is provided. Moreover, the strike in which the locking hole was formed is attached to the door stop part which the door end of a sliding door contacts.

  As a result, when the sliding door is closed, by locking the operation knob exposed on the indoor side surface of the sliding door, the hook bolt in the lock box protrudes from the lock box with an arc-shaped locus, By locking in the strike hole of the strike, it was possible to obtain a locked state that restricts the opening of the sliding door. In addition, to release the locked state, by unlocking the operation knob in the direction opposite to the locking direction, the hook-like bolt locked to the strike is again retracted into the lock box with an arc-shaped locus, The locked state with the strike was released, and the unlocked state allowing the sliding door to be opened was achieved.

  However, the above-described conventional sliding door locking device operates the operation knob that is exposed to the indoor side after closing the sliding door, so as to lock the lock by projecting the hook bolt, immediately after closing the sliding door. When urgent work is required, there is a problem that lacks convenience. In addition, if the user forgets to lock the door after the sliding door is closed, the sliding door may be unexpectedly opened by another person. As a countermeasure against such a problem, it is conceivable to employ an auto-lock lock. However, there is a problem that a power supply is required and the lock structure is complicated and costly.

  The present invention has been made in view of the above situation, and provides an automatic locking device for sliding doors that has a simple structure and can be locked simultaneously with closing of a sliding door at low cost, thereby improving convenience at low cost. For the purpose.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The sliding door automatic locking device 100 according to claim 1 of the present invention is an automatic locking device 100 for sliding doors provided across the sliding door 11 and the non-opening / closing body 13,
The non-opening / closing body 13 includes a strike 17 having a locking hole 15, and a first magnet 19 and a second magnet 21 that are attached to the strike 17 so that different magnetic poles face the sliding door 11,
The sliding door 11 is pivotally supported about a pivot shaft 29 and is supported by a pivot bolt 29 that protrudes from an advancing / retracting hole of the decorative plate 25 with an arcuate locus, thereby locking the hook-like bolt 31 to the locking hole 15. A slide bracket 35 having a rack 37 that meshes with the segment gear 39 of the bolt 31, and a reciprocating linearly moving slide bracket 35, and a stopper that is supported by the stopper shaft 51 in a swingable manner and is locked to the retracted bolt 31. An arm 53, a slide base 59 that reciprocates linearly so as to selectively face the first magnet 19 or the second magnet 21, and a swing support shaft 63 provided on the slide base 59 via a trigger support shaft 63. By facing the first magnet 19, it is rotated in one direction to release the stopper arm 53 by a magnetic repulsive force, and the second magnet 21, the magnet base 65 is rotated in the other direction by the magnetic attraction force, and the slide base 59 is slid in a direction in which the hook-shaped bolt 31 is retracted and is provided on the slide bracket 35 to move the slide base 59 to the second magnet. A projecting piece 75 slid in the direction of 21;
It is provided with.

  In the sliding door automatic locking device 100, when the sliding door 11 is closed, the magnet trigger 65 supported by the slide base 59 faces the first magnet 19 on the strike side and is generated between the first magnet 19. Due to the magnetic repulsive force, it is swung away from the first magnet 19. The oscillating magnet trigger 65 presses the stopper arm 53, and the stopper arm 53 is rotated in a direction to release the locking from the hooked bolt 31. Thereby, the stopper arm 53 and the hooked bolt 31 are unlocked. When the locking state of the hook-like bolt 31 by the stopper arm 53 is released, the slide bracket 35 is biased by the bracket spring biasing force of the slide bracket 35 meshing with the segment gear 39, and this is followed by the hook-like bolt. 31 protrudes from the advancing / retracting hole 33 of the sliding door 11 with an arcuate locus. The hook-like bolt 31 protruding from the sliding door 11 in this way is locked in the locking hole 15 of the non-opening / closing body strike 17 facing in the closed state of the sliding door. Thereby, the sliding door 11 will be in a locked state to the non-opening-closing body side, and will become impossible to open | release. On the other hand, when the sliding door 11 is unlocked, the operation pin 41 fixed to the slide bracket 35 is operated, and the slide bracket 35 is slid in the direction in which the bolt 31 is rotated backward. As a result, the hook-like bolt 31 is retracted to the sliding door 11, the engagement with the strike locking hole 15 is released, and the projecting piece 75 provided on the slide bracket 35 causes the slide base 59 to move to the second magnet facing position. Slide to the side. When the slide base 59 is disposed at a position facing the second magnet 21, the magnet trigger 65 provided on the slide base 59 is applied to the second magnet 21 by the magnetic attraction force generated between the second magnet 21 and the magnet trigger 65. It is swung in the approaching direction, and the engagement with the projecting piece 75 of the slide bracket 35 is released. When the sliding door 11 is opened in this state, the magnet trigger 65 is separated from the second magnet 21 and the magnetic attractive force disappears, so that the slide base 59 again faces the first magnet 19 by the biasing force of the base spring 73. It will be moved to the position where it will be moved and will be reset to the state before the sliding door is closed.

The automatic locking device 200 for a sliding door according to claim 2 includes a release piece 91 protruding from the stopper arm 53, and
The slide bracket 53 is slidably provided in the slide bracket 53 and abuts against the release piece 91 by a sliding operation in a direction in which the hook-like bolt 31 protrudes to swing the stopper arm 53 in the unlocking direction. A core member 85 having a pressing piece 89;
It is provided with.

  In the sliding door automatic locking device 200, the sliding door is locked to the core member 85 even in the state immediately after the unlocking operation is performed (the unlocked sliding door 11 is not yet opened). When the operation pin 41 is operated in the direction in which the hooked bolt 31 protrudes, the pressing piece 89 of the core member 85 presses the release piece 91 of the stopper arm 53, and the stopper arm 53 is locked to the slide bracket 35. It can be swung from the state to the unlocked state. In other words, according to the present configuration in which the core member 85 is provided, even when just after unlocking, the operation knob 97 is locked in the direction opposite to the unlocking operation, so that the lock bolt 31 is protruded. It becomes possible.

  The sliding door automatic locking device 100 according to claim 3 is characterized in that the non-opening and closing body is a summing portion 13 a of another sliding door 13 that contacts the sliding door 11.

  In this sliding door automatic locking device 100, for example, a lock box 23 is provided in the summing part 11 a of the sliding sliding door 11, and the kama-shaped bolt 31 protruding from the lock box 23 is connected to the summing part of the other sliding door 13. By engaging with the strike 17 provided at 13a, both the sliding sliding doors 11 and 13 are simultaneously locked.

  According to the sliding door automatic locking device of the first aspect of the present invention, when the sliding door is closed, the magnet trigger swings due to the magnetic repulsive force generated between the first magnet on the strike side and the stopper. The arm is rotated in the unlocking direction of the hooked bolt. As a result, the stopper arm and the hook-like bolt are unlocked, and the hook-like bolt protrudes from the sliding door's forward / backward hole with an arcuate path due to the biasing force of the slide bracket meshing with the segment gear, and the strike locking hole Therefore, it is possible to lock the door simultaneously with closing the sliding door at a low cost without using an automatic lock. As a result, convenience can be improved at low cost.

  According to the automatic locking device for sliding doors according to claim 2, even when the unlocked sliding door is not yet opened, the operation pin fixed to the core member is operated in the direction of protruding the bolt. Since the release piece of the stopper arm can be pressed via the pressing piece of the core member and the stopper arm can be swung from the locked state to the unlocked state with respect to the slide bracket, It becomes possible to be in a locked state in which the bolt is protruded.

  According to the automatic locking device for sliding doors according to claim 3, since the non-opening and closing body is the summing part of the other sliding doors that are in contact with the sliding door, a lock box is provided at the summing part of the sliding sliding door, By locking the bolts that protrude from the box to the strike provided at the summing part of another sliding door, both sliding sliding doors can be locked simultaneously with closing.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an automatic locking device for sliding doors according to the invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic perspective view of a sliding sliding door employing an automatic locking device for sliding doors according to the present invention, FIG. 2 is a sectional view of the sliding door automatic locking device shown in FIG. 2 is a view taken along the line II-II in FIG. 2, FIG. 4 is a view taken along the line II-II in FIG. 2, FIG. 5 is an exploded perspective view of the main part of the automatic locking device for sliding doors shown in FIG. FIG. 7 is a perspective view of the hooked bolt shown in FIG. 5, FIG. 8 is a perspective view of the slide base shown in FIG. 5, and FIG. 9 is a perspective view of the stopper arm shown in FIG. is there.
The sliding door automatic locking device 100 according to the present embodiment is generally provided across the sliding door 11 and the non-opening / closing body. Here, the non-opening / closing body refers to another sliding door 13 that is in contact with the sliding door 11. The sliding door automatic locking device 100 is provided across the summing unit 11 a of the sliding door 11 and the summing unit 13 a of the other sliding door 13. That is, a lock box, which will be described later, is provided in the summing part 11a of the sliding door 11, and the hook-like bolt protruded from the lock box is locked to the strike provided in the summing part 13a of the other sliding door 13. The sliding sliding doors 11 and 13 are both configured to be locked when they are closed.

The configuration will be specifically described below.
A strike 17 having a locking hole 15 shown in FIGS. 2 and 3 is attached to the summing portion 13a of another sliding door 13 which is a non-opening / closing body. A first magnet 19 and a second magnet 21 that make different magnetic poles face the sliding door 11 are fixed to the strike 17 with an interval in the vertical direction.

  On the other hand, a lock box 23 is provided in the summing part 11a of the sliding door 11, and the lock box 23 is exposed on the surface facing the other sliding door 13 as a decorative board 25 shown in FIGS. The decorative board 25 is fixed to the summing part 11 a of the sliding door 11 by fixing screws 27 and 27. A comma-like bolt 31 is supported in the lock box 23 so as to be rotatable around a rotation shaft 29, and the comma-like bolt 31 protrudes from an advancing / retracting hole 33 formed in the decorative plate 25 with an arcuate locus. The hook-like bolt 31 protrudes from the advance / retreat hole 33 to be engaged with the engagement hole 15 of the strike 17.

  A slide bracket 35 is provided on the left side of the hook-like bolt 31 in the lock box 23 so as to be reciprocally linearly movable in the vertical direction of FIG. 2, and the slide bracket 35 is provided with a rack 37 shown in FIGS. 31 is engaged with a segment gear 39 shown in FIG. A pin hole 39 is formed in the slide bracket 35, and the operation pin 41 is fitted into the pin hole 39. An operation panel 45 shown in FIG. 1 is attached to the surface of the summing portion 11a of the sliding door 11, and an operation knob 47 connected to the operation pin 41 is slidably exposed in the vertical direction. That is, the slide bracket 35 can be slid upward through the operation knob 47. An accommodation space 43 is formed in the slide bracket 35, and the accommodation space 43 can accommodate a core member used in a second embodiment to be described later.

  When the slide bracket 35 slides up and down, the hook-like bolt 31 is rotated via the rack 37 and the segment gear 39. On the contrary, if the rotation of the bolts 31 is restricted, the vertical sliding of the slide bracket 35 is also restricted. The slide bracket 35 is urged downward in FIG. 2 by an urging force of a bracket spring 49 disposed between the inner wall surface of the lock box 23.

  A stopper arm 53 is provided in the lock box 23 so as to be swingable about the stopper shaft 51. The stopper arm 53 is attached to the locking piece 55 of the kama-shaped bolt 31 in a state of being retracted into the lock box 23. By locking the claw portion 53a, rotation of the hooked bolt 31 in the protruding direction is restricted. That is, the stopper arm 53 restricts the sliding of the slide bracket 35 while the bracket spring 49 is compressed. The stopper arm 53 is supported by the stopper shaft 51 at a support hole 53b shown in FIG. A stopper spring 57 shown in FIG. 2 is extrapolated to the stopper shaft 51, and one end of the stopper spring 57 comes into contact with the rotating shaft 29 and the other end comes into contact with the standing piece 53 c of the stopper arm 53 shown in FIG. Thus, the stopper arm 53 is urged to rotate counterclockwise in FIG.

  A slide base 59 is provided in the lock box 23 so as to reciprocate linearly in the vertical direction of FIG. 2 so as to selectively face the first magnet 19 or the second magnet 21. The slide base 59 is guided to slide along a guide groove 61 formed on the back surface of the decorative plate 25, for example. A magnet trigger 65 is swingably provided on the slide base 59 via a trigger support shaft 63. A magnet 67 is fixed to the magnet trigger 65, and the magnet 67 generates a magnetic repulsive force by being arranged opposite to the first magnet 19, while generating a magnetic attractive force by being arranged opposite to the second magnet 21. Let The trigger support shaft 63 is fixed to the support hole 59 a of the slide base 59. A trigger spring 69 is extrapolated to the trigger support shaft 63. One end of the trigger spring 69 abuts on the magnet trigger 65 and the other end abuts on the convex piece 59b of the slide base 59. It is energized counterclockwise.

  That is, when the slide base 59 is slid and the magnet 67 is disposed to face the first magnet 19, the magnet trigger 65 is rotated clockwise as shown in FIG. Further, when the slide base 59 is slid and the magnet 67 is disposed opposite to the second magnet 21, the magnet trigger 65 is rotated counterclockwise in FIG. The magnet trigger 65 rotates clockwise, thereby pressing the stopper arm 53 to the right in FIG. 2 and swinging the stopper arm 53 clockwise. As a result, the stopper arm 53 releases the locking of the slide bracket 35. That is, the magnet trigger 65 is rotated in one direction to unlock the stopper arm 53 by the magnetic repulsive force by facing the first magnet 19, and by the magnetic attraction force by facing the second magnet 21. It is rotated in the other direction.

  A base spring shaft 71 is erected on the upper portion of the lock box 23, and a base spring 73 is externally inserted on the base spring shaft 71. One end of the base spring 73 abuts against the inner wall of the lock box 23 and the other end abuts against the slide base 59 to urge the slide base 59 downward in FIG.

  The slide bracket 35 is provided with a projecting piece 75, and the projecting piece 75 can be engaged with the slide base 59. That is, when the slide bracket 35 is slid in the direction in which the bolt 31 is moved backward, the projecting piece 75 slides the slide base 59 in the direction of the second magnet 21 (upward in FIG. 2). ing. That is, the slide bracket 35 is slid upward in FIG. 2 via the operation knob 47, and the slide base 59 is also slid upward.

Next, the operation of the sliding door automatic locking device 100 configured as described above will be described.
10 is a cross-sectional view of the device in the locked state of the sliding door, FIG. 11 is a cross-sectional view of the device during the unlocking operation, FIG. 12 is a cross-sectional view of the device in the holding state of the magnet trigger during unlocking, and FIG. is there.
In the sliding door automatic locking device 100, as shown in FIG. 10, first, when the sliding door 11 is closed, the magnet trigger 65 supported by the slide base 59 faces the first magnet 19 on the strike 17 side. Then, the magnet trigger 65 is swung in a direction away from the first magnet 19 by a magnetic repulsive force generated between the magnet 67 and the first magnet 19.

  The oscillating magnet trigger 65 presses the stopper arm 53, and the stopper arm 53 is rotated in a direction to release the locking from the hooked bolt 31. Thereby, the stopper arm 53 and the hooked bolt 31 are unlocked. When the locking state of the hooked bolt 31 by the stopper arm 53 is released, the slide bracket 35 is urged downward by the urging force of the bracket spring 49 of the slide bracket 35 meshing with the segment gear 39, and this is followed. Then, the hook-like bolt 31 is projected from the advance / retreat hole 33 of the sliding door 11 along an arcuate locus. The hook-like bolt 31 protruding from the sliding door 11 in this way is locked in the locking hole 15 of the strike 17 of the other sliding door 13 facing in the closed state of the sliding door. As a result, the sliding door 11 is locked to the other sliding door 13 and cannot be opened.

  On the other hand, when unlocking the sliding door, as shown in FIG. 11, the operation knob 47 (see FIG. 1) fixed to the operation pin 41 of the slide bracket 35 is operated, and the hooked bolt 31 is rotated backward. The slide bracket 35 is slid upward in FIG. As a result, the hook-like bolt 31 is retracted to the sliding door 11, the engagement with the strike engagement hole 15 is released, and the projecting piece 75 provided on the slide bracket 35 connects the slide base 59 with the second magnet 21. Slide to the opposite position.

  When the slide base 59 is disposed at a position facing the second magnet 21, a magnetic attraction force generated between the magnet trigger 65 provided on the slide base 59 and the second magnet 21 as shown in FIG. 12. Accordingly, the second magnet 21 is swung in the approaching direction, and the engagement of the slide bracket 35 with the protruding piece 75 is released.

  In this state, as shown in FIG. 13, when the sliding door 11 is opened, the magnet trigger 65 is separated from the second magnet 21 and the magnetic attractive force disappears, so that the slide base 59 is moved by the biasing force of the base spring 73. It is again moved to a position facing the first magnet 19 and is reset to the state before closing the sliding door. In this reset state, the hook-shaped bolt 31 is again locked by the stopper arm 53, so that the slide bracket 35 is held above the lock box 23 with the bracket spring 49 compressed.

  Therefore, according to the automatic locking device 100 for sliding doors, when the sliding door 11 is closed, the magnet trigger 65 is swung by the magnetic repulsive force generated between the first magnet 19 on the strike side and the stopper arm 53. Is rotated in the unlocking direction of the hooked bolt 31. Accordingly, the stopper arm 53 and the hooked bolt 31 are unlocked, and the hooked bolt 31 is moved from the advancing / retracting hole 33 of the sliding door 11 along an arcuate path by the urging force of the slide bracket 35 meshing with the segment gear 39. Since it protrudes and locks in the locking hole 15 of the strike 17, it is possible to lock the sliding door 11 at the same time with a simple structure and at low cost without using an auto-locking lock. As a result, convenience can be improved at low cost.

  In addition, since the non-opening / closing body is the summing part 13a of the other sliding door 13 that is in contact with the sliding door 11, a locking box 23 is provided on the summing part 11a of the sliding sliding door 11 and protruded from the locking box 23. By locking the hook-like bolt 31 to the strike 17 provided in the summing portion 13a of the other sliding door 13, both the sliding sliding doors 11 and 13 can be locked simultaneously with closing.

Next, another embodiment of the automatic locking device for sliding doors according to the present invention will be described.
14 is a cross-sectional view of the apparatus according to another embodiment of the present invention, FIG. 15 is an exploded perspective view of the main part of the automatic locking apparatus for sliding doors shown in FIG. 14, and FIG. 16 is a perspective view of the core member shown in FIG. 17 is a perspective view of the stopper arm shown in FIG. 15, FIG. 18 is a view taken along arrow III-III in FIG. 14, and FIG. 19 is a view taken along arrow IV-IV in FIG. In addition, the same code | symbol is attached | subjected to the member same as the member shown in FIGS. 1-13, and the overlapping description shall be abbreviate | omitted.
In the sliding door automatic locking device 200 according to another embodiment, the accommodation space 43 of the slide bracket 81 shown in FIGS. It is open.

  A core member 85 is accommodated in the accommodation space 43 of the slide bracket 81 so as to be slidable in the same direction as the slide direction of the slide bracket 81. As shown in FIG. 16, the core member 85 is fixed with the operation pin 41 protruding from the notch 83. The core member 85 is urged upward in FIG. The core member 85 is provided with a pressing piece 89 that protrudes toward the stopper arm 53. The pressing piece 89 abuts on the release piece 91 shown in FIG. 17 projecting from the stopper arm 53 by the sliding operation of the core member 85 in the direction in which the hooked bolt 31 protrudes, and the stopper arm 53 is unlocked. Swing to.

  The operation panel 45 provided on the door surface of the sliding door 11 is provided with a slide block 93 that fits with the operation pin 41 shown in FIGS. The slide block 93 is provided with an operation knob 97 that is swingable in the vertical direction of FIG. 14 about a swing shaft 95 shown in FIG. The operation knob 97 is exposed from a window 99 formed on the operation panel 45.

Next, the operation of the sliding door automatic locking device 200 configured as described above will be described.
20 is a cross-sectional view of the device at the time of unlocking the closed door state, FIG. 21 is a cross-sectional view of the device at the time of locking operation in the closed door state, and FIG.
In this sliding door automatic locking device 200, the automatic locking operation immediately after closing of the sliding door 11 shown in FIG. 10 is the same as that of the sliding door automatic locking device 100 according to the above-described embodiment, and thus the description thereof is omitted.

  On the other hand, in the sliding door automatic locking device 200 according to the present embodiment, in the state shown in FIG. 20 immediately after the unlocking operation is performed from the sliding door locked state (the state in which the unlocked sliding door 11 is not yet opened). In addition, the operation pin 41 fixed to the core member 85 is operated in the direction in which the hook bolt 31 protrudes by the downward sliding operation of the operation knob 97 shown in FIG. The pressing piece 89 presses the release piece 91 of the stopper arm 53.

  Accordingly, the sandwiching spring 87 is compressed, and the stopper arm 53 can be swung from the locked state to the unlocked state with respect to the slide bracket 35 as shown in FIG. Then, when the locking by the stopper arm 53 is released, the slide bracket 35 is slid downward in FIG. 22 by the urging force of the bracket spring 49 and the sandwiching spring 87 and meshes with the rack 37. Then, the bolt 31 is rotated in the protruding direction. In other words, according to the present configuration in which the core member 85 is provided, even when just after unlocking, the operation knob 97 is locked in the direction opposite to the unlocking operation, so that the lock bolt 31 is protruded. It becomes possible.

  Therefore, according to the sliding door automatic locking device 200, even when the unlocked sliding door 11 is not yet opened, the operation pin 41 fixed to the core member 85 is moved in the direction in which the kama-shaped bolt 31 protrudes. By operating, the release piece 91 of the stopper arm 53 is pressed via the pressing piece 89 of the core member 85, and the stopper arm 53 can be swung from the locked state to the unlocked state with respect to the slide bracket 35. Therefore, even immediately after unlocking, it is possible to enter the locked state in which the hooked bolt 31 protrudes without opening the sliding door 11 and resetting the slide base 59 downward. In the state shown in FIG. 22, the slide base 59 that is disposed at the upper side loses its magnetic attraction with the second magnet 21 when the sliding door 11 is opened, and is moved downward by the biasing force of the base spring 73. It will be arranged and will be in the reset state shown in FIG.

It is a schematic perspective view of the sliding sliding door employ | adopted of the automatic locking device for sliding doors which concerns on this invention. It is apparatus sectional drawing of the door surface perpendicular | vertical direction of the automatic locking apparatus for sliding doors shown in FIG. It is the II arrow directional view of FIG. It is the II-II arrow line view of FIG. It is a principal part disassembled perspective view of the automatic locking device for sliding doors shown in FIG. FIG. 6 is a perspective view of the slide bracket shown in FIG. 5. FIG. 6 is a perspective view of the hooked bolt shown in FIG. 5. FIG. 6 is a perspective view of the slide base shown in FIG. 5. FIG. 6 is a perspective view of the stopper arm shown in FIG. 5. It is apparatus sectional drawing of a sliding door locking state. It is an apparatus sectional view at the time of unlocking operation. It is an apparatus sectional view of a magnet trigger holding state at the time of unlocking. It is apparatus sectional drawing of an open door state. It is apparatus sectional drawing of other embodiment which concerns on this invention. It is a principal part disassembled perspective view of the automatic locking device for sliding doors shown in FIG. It is a perspective view of the core member shown in FIG. FIG. 16 is a perspective view of the stopper arm shown in FIG. 15. It is the III-III arrow line view of FIG. It is an IV-IV arrow line view of FIG. It is sectional drawing of an apparatus at the time of unlocking in a closed door state. It is an apparatus sectional view at the time of closed door state locking operation. It is apparatus sectional drawing at the time of completion of a closed door state locking.

Explanation of symbols

11 ... Sliding doors 11a, 13a ... Summoning part 13 ... Other sliding doors (non-opening / closing body)
DESCRIPTION OF SYMBOLS 15 ... Locking hole 17 ... Strike 19 ... 1st magnet 21 ... 2nd magnet 25 ... Decorative plate 29 ... Rotating shaft 31 ... Cama-shaped bolt 33 ... Advance / retreat hole 35 ... Slide bracket 37 ... Rack 39 ... Segment gear 51 ... Stopper Shaft 53 ... Stopper arm 59 ... Slide base 63 ... Trigger support shaft 65 ... Magnet trigger 75 ... Projection piece 85 ... Core member 89 ... Pressing piece 91 ... Release piece 100,200 ... Automatic locking device for sliding door

Claims (3)

An automatic locking device for sliding doors provided across a sliding door and a non-opening / closing body,
The non-opening / closing body includes a strike having a locking hole, and a first magnet and a second magnet that are attached to the strike and have different magnetic poles opposed to the sliding door,
The sliding door is pivotally supported around a pivot shaft and is supported by the arcuate trajectory from the advance / retreat hole of the decorative plate so as to be engaged with the engagement hole, and a segment gear of the engagement bolt. A slide bracket that reciprocally moves linearly, a stopper arm that is supported swingably about a stopper shaft, and that engages with the retracted bolt, and the first magnet or the second A slide base that reciprocates linearly so as to selectively face the magnet, and a swing base provided on the slide base via a trigger support shaft, and engages the stopper arm by a magnetic repulsive force by facing the first magnet. A magnet trigger that is rotated in one direction for stopping and releasing and rotated in the other direction by a magnetic attraction force by facing the second magnet; A protrusion for sliding said slide base in the direction of the second magnet to the hook-shaped bolt provided serial slide bracket sliding direction retracting,
An automatic locking device for sliding doors. A release piece protruding from the stopper arm;
The slide bracket is slidably provided in the slide bracket, and has a push-down piece that abuts on the release piece by a sliding operation in a direction in which the bolt is protruded and swings the stopper arm in the release direction. A core member,
The automatic locking device for sliding doors according to claim 1, comprising:   The automatic locking device for sliding doors according to claim 1 or 2, wherein the non-opening / closing body is a summing part of another sliding door that contacts the sliding door.

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