JP4622553B2 - Shutter locking device - Google Patents

Description

  The present invention relates to a shutter locking device that can be connected and wound up by connecting slats used in household shutters and the like.

  As a shutter that is installed with the sash at the opening of the building outer wall for the purpose of crime prevention, wind and rain prevention and energy saving, the shutter curtain is configured to be able to wind up by connecting a number of slats in the vertical direction and is installed on the upper outdoor side of the sash. The shutter curtain is wound around the hoisting drum in the shutter case, and the sash is lowered by guiding the left and right sides of the shutter curtain with guide rails provided on the left and right sides of the sash. There is a configuration that covers the whole. The shutter having such a configuration is widely used because it has features such as the ability to eliminate a door pocket.

  As a conventional locking device used for a shutter having such a configuration, a latch hook projects from the lower ends of the left and right guide rails that guide the shutter curtain to be raised and lowered, and the latch hook extends to the left and right side ends of the seat plate of the shutter curtain. The latch body is provided with a pivotable latch body that is engaged with the seat plate, an operation lever is provided along the longitudinal direction of the seat plate, and the operation lever protrudes toward the latch body and is engaged with the latch hook. Is configured so as to be pivotable up and down between a downward movement position for locking and locking and an upward movement position for reversing and unlocking from the latch body side (hereinafter referred to as “left and right fixed locking device”). 1 and 2).

  In addition, a lock mechanism is provided on the indoor surface of the end plate portion (seat plate) of the shutter curtain, and a lock receiving portion is provided on the shutter lower frame on the lower side of the lock mechanism, and when the end plate portion is lowered to the closed position, A lock piece of the lock mechanism is brought into contact with a receiving pin of the lock receiving portion, is rotated from the release position to the lock position and is locked and locked, and a notch portion formed on one side portion of the main body of the lock mechanism is provided. There are those that are unlocked by operating an operation lever that is extended laterally upward (hereinafter referred to as “upper and lower fixed locking device”; see, for example, Patent Documents 3 and 4).

JP-A-8-109780 (FIGS. 1-3) JP 2002-250189 A (FIGS. 1 and 3-5) Japanese Patent No. 3079037 (Fig. 1-2) JP 2001-313141 A (FIGS. 1-4)

  Such a conventional shutter locking device is locked at the closed position of the shutter curtain, but the shutter curtain slat can be pierced from the outdoor side by a rechargeable drill, a drill, a hammer, or the like. In such a case, it is easily unlocked from the outdoor side. Therefore, in view of the recent increase in the number of burglaries and robberies to houses or offices and the worsening of crimes, there is room for improvement, particularly from the viewpoint of crime prevention.

  The present invention has been made to solve the above-mentioned problems, and is not easily unlocked even when a hole is made in the shutter curtain from the outdoor side. The object is to obtain a high shutter locking device.

A shutter locking device according to the present invention includes a lock mechanism attached to a seat plate at the lower end of a shutter curtain in a shutter provided on the outdoor side of a window sash, and a receiving pin that engages with a lock member of the lock mechanism. A locking device comprising a lock receiver attached to the shutter lower frame, which is rotatably supported by the base of the lock mechanism, and is rotated by a predetermined angle or more in the window sash direction, thereby An unlocking means for rotating the lock member in the unlocking direction is provided, and the lock mechanism is supported by the base so as to be rotatable about a substantially horizontal axis in the front-rear direction, and the base is substantially in the front-rear direction. A locking piece that is supported so as to be rotatable about a horizontal axis, abuts against a locking portion of the lock member and restricts the rotation of the lock member in the unlocking direction, and interlocks with the rotation of the locking piece. The above A slider that is supported by the body so as to be slidable substantially vertically. When the slider moves downward, the locking piece rotates to disengage from the locking portion of the locking member. An unlocking piece that is pivoted in the locking direction to be in an unlocked state, and the unlocking means is supported on the upper side of the base so as to be rotatable about the substantially vertical axis; A stopper provided on the unlocking piece in a locked state, which extends from the locking piece and is composed of an operating piece that is integral with or separate from the unlocking piece, and the operating piece is positioned substantially parallel to the window sash surface. Movement of the slider is restricted by engagement with the upper portion of the slider, and when the operation piece is rotated in the window sash direction, the engagement between the stopper and the upper portion of the slider is released, and The operation piece is rotated in the same direction so that the rotation angle is not less than a predetermined angle. That the said becomes unlocked state the slider by pressing piece provided in the unlocking piece is pushed downward, in the closed state of the said window sash, a predetermined angle or more necessary unlocking the unlocking means The rotation is restricted.

  In addition, a plurality of locking devices comprising the lock mechanism and the lock receiver are provided, and at least one of the operation piece and the unlocking piece of the plurality of locking devices is connected by an interlocking link bar, It is preferable that the unlocking operations of the plurality of locking devices are linked by operation.

According to the shutter locking device of the present invention, in the shutter provided on the outdoor side of the window sash, the lock mechanism attached to the seat plate at the lower end of the shutter curtain, and the receiving pin engaged with the lock member of the lock mechanism And a lock receiving device attached to a shutter lower frame, wherein the locking device is rotatably supported by a base of the lock mechanism, and is rotated by a predetermined angle or more in a window sash direction to thereby lock the lock. An unlocking means for rotating the lock member of the mechanism in the unlocking direction, wherein the lock mechanism is supported by the base body so as to be rotatable about a substantially horizontal axis in the front-rear direction; A locking piece that is supported so as to be rotatable about a substantially horizontal axis of the locking member, abuts against a locking portion of the lock member and restricts the rotation of the locking member in the unlocking direction, and the rotation of the locking piece. Interlock A slider supported by the base body so as to be slidable in a substantially vertical direction, and the locking piece is rotated by the downward movement of the slider to disengage from the locking portion of the locking member. An unlocking piece that pivots in the unlocking direction to be in an unlocked state, the unlocking means being supported on the base so as to be rotatable about a substantially vertical axis on the base, The unlocking piece extends from the unlocking piece, and is composed of an operation piece that is integral with or separate from the unlocking piece, and is provided on the unlocking piece in a locked state in which the operation piece is substantially parallel to the window sash surface. The downward movement of the slider is restricted by the engagement between the stopper and the upper part of the slider, and when the operation piece is rotated in the window sash direction, the engagement between the stopper and the upper part of the slider is released, Further, the operation piece is rotated in the same direction so that the rotation angle is a predetermined angle. When faced upward, the slider becomes the unlocked state is pushed downward by the pressing piece provided in the unlocking piece, in the closed state of the said window sash, a predetermined angle required for unlocking the unlocking means Since the above rotation is restricted, in the state where the window sash is closed after locking, it is difficult to unlock even if a hole is made in the shutter curtain from the outside side. Since the time required for the intruder to enter is greatly increased, the security performance of the shutter to which the locking device is attached can be greatly improved , and the unlocking means, stopper, pressing piece, etc. can be provided with a simpler configuration. Since it can be configured, the reliability of the locking / unlocking operation can be improved and the cost can be reduced.

In addition , a plurality of locking devices comprising the lock mechanism and the lock receiver are provided, and at least one of the operation piece and the unlocking piece of the plurality of locking devices is connected by an interlocking link bar, When the unlocking operations of the plurality of locking devices are linked by operation, the plurality of locking devices can be unlocked by a one-action unlocking operation for one operation piece, so that the operability can be improved.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste. In this specification, the front side is the front, the back side (indoor side) is the rear, and the left and right are the left and right as viewed from the outdoor side. Moreover, let the figure seen from the outdoor side (front side) be a front view.

  1 to 3 are explanatory views showing an example of a shutter in which a locking device according to an embodiment of the present invention is used. FIG. 1 is a front view, FIG. 2 is a vertical right side view, and FIG. FIG. In addition, the shutter curtain of FIG. 2 shows only the lowermost seat plate. 4-6 is explanatory drawing which shows the structure of the locking device of the shutter which concerns on embodiment of this invention, FIG. 4 is a vertical right view, FIG. 5 is a disassembled perspective view, FIG. 6 is a principal part disassembled perspective view. FIG. Moreover, FIG. 7 is explanatory drawing of the locking operation | movement of a locking device, FIG. 7 (a) is a longitudinal front view which shows an unlocking state, FIG.7 (b) is a longitudinal front view which shows a locking state. 8 and 9 are explanatory views of the unlocking operation, FIG. 8 is a plan view, and FIG. 9 is a longitudinal front view.

  As shown in FIG. 1, a shutter 1 installed at an opening of an outer wall of a building for the purpose of crime prevention, wind and rain avoidance, and energy saving is a shutter case 2 installed on the outdoor upper side of the opening to which a window sash S is attached. A winding drum (not shown) in the shutter case 2, a shutter curtain 3 wound around the winding drum, which can be pulled out from the winding drum and taken up by the winding drum, both left and right sides of the opening The vertical frames 4 and 5 are disposed on the lower frame 6 and the lower frame 6 is installed between the lower ends of the vertical frames 4 and 5. As shown in FIGS. 2 and 3, the window sash S is a sliding door that can slide the sliding doors 101 and 102 along the left and right rails provided vertically. A screen door 103 is attached to the front side of the sliding doors 101 and 102. As shown in FIG. 2, the lower frame 104 of the window sash S and the shutter lower frame 6 are integrated. Here, it is desirable that the shutter 1 is a sash-integrated type and has a structure that is difficult to destroy or remove.

  The shutter curtain 3 has a structure in which slats 7... And a lowermost seat plate 8 formed by roll forming of a steel plate or an aluminum plate, aluminum extrusion molding, or the like are connected to each other. The opening can be closed or opened by winding with a hoisting drum. Further, guide rails are formed inside the vertical frames 4 and 5 in the left-right direction, and the left and right sides of the shutter curtain 3 are guided in the vertical direction by the guide rails.

  Here, as shown in FIG. 2, the shutter curtain 3 is pulled out from the hoisting drum along the guide rail, and protrudes from the lower end of the guide rail in the closed position where the shutter curtain 3 is pulled down to the lowest position. A left-right fixed locking device 9 is provided for locking by rotating the latch body that is engaged with the latch hook. The left-right fixed locking device 9 has a known configuration such as that disclosed in Patent Document 1 and will not be described in detail, but can be unlocked by pulling up the operating lever 10 upward.

  Further, on the rear side of the left and right fixed locking device 9, it is attached to the rear side (indoor side) of the seat plate 8 of the shutter curtain 3, and is attached to the lock mechanism 12 having the lock member 41 and the shutter lower frame 6. Upper and lower fixed locking devices 11, 11 constituted by a lock receiver 13 having a receiving pin 61 engaged with the lock member 41 are provided on the left and right. The unlocking of the two left and right fixed locking devices 11 and 11 can be performed simultaneously by one action by the operation piece 37 and the interlocking link 14 as will be described later. In the closed state, even if a hole is made in the shutter curtain 3 from the outdoor side, it is not easily unlocked.

  2 and 4, a space A is provided between the seat plate 8 of the shutter curtain 3 and the lock mechanism 12, and a left and right fixed locking device 9 is disposed through the space. Therefore, the left and right fixed locking devices 9 and the vertical fixed locking devices 11 and 11 can be arranged side by side. Further, the left and right fixed locking devices 9 are not necessarily provided, and only the vertical fixed locking devices 11 and 11 may be provided.

  As shown in FIGS. 2, 3 to 5, the lock mechanism 12 is attached to the upper horizontal portion 8 a of the seat plate 8 of the shutter curtain 3 from the through holes 30, 30 of the upper plate portion 25 of the base 21. 30a is screwed, and the mounting screws 60, 60 are screwed into the screw holes 26a, 27a of the mounting plate portions 26, 27 of the base 21 from the through holes 8c, 8c of the lower horizontal portion 8b. Mounted on the rear side. Further, the lock receiver 13 is attached to the upper side of the shutter lower frame 6 with attachment screws 63.

  Next, the structure of the lock mechanism 12 and the lock receiver 13 which comprise the up-and-down fixed type locking device 11 is demonstrated with reference to FIG. The base 21 of the lock mechanism 12 includes a back plate portion 24, an upper plate portion 25 formed by bending the upper portion of the back plate portion 24 forward, and left and right sides formed by bending the left and right sides of the back plate portion 24 forward. The side plate portions 22 and 23, the front lower portions of the side plate portions 22 and 23 are formed by bending outward in the left-right direction, and the mounting plate portions 26 and 27 are formed with screw holes 26a and 27a.

  The lock member 41 is formed with a push-up piece 41 a, a lock piece 41 b, a locking part 41 c, a contact part 41 d and a spring hook part 41 e, and a stepped shaft 43 through hole 42 and the back plate part 24 of the base body 21. By caulking the shaft end through the through-hole 33, the lock member 41 is supported so as to be rotatable around the stepped shaft 43 (about a substantially horizontal axis in the front-rear direction). Further, the locking piece 44 is formed with a slider support portion 44a and a spring hook portion 44b, and the stepped shaft 46 is provided in a through hole 45 provided at an intermediate position between the slider support portion 44a and the spring hook portion 44b. Further, by caulking the shaft end through the through hole 32 of the back plate portion 24 of the base body 21, the locking piece 44 is supported so as to be rotatable around the stepped shaft 46 (about a substantially horizontal axis in the front-rear direction). A tension coil spring 53 is hung between the spring hooks 41e and 44b, and an elastic biasing force acts in a direction to narrow the distance between the spring hooks 41e and 44b.

  The upper portion of the slider 48 is inserted into the guide hole 28 formed in the upper plate portion 25 of the base 21, and the stepped shaft 52 is passed through the long hole 49 in the vertical direction and the slider support portion 44 a of the locking piece 44. By caulking the shaft end through the hole 47, the vertical movement of the slider 48 supported so as to be slidable substantially vertically in the base 21 and the rotation of the locking piece 44 around the stepped shaft 46 are interlocked. The slider 48 has a notch 50 formed on the upper left surface thereof, and an inclined surface 51 formed on the upper rear surface side. The slider 48 is manufactured by injection molding of a resin such as ABS, AES, nylon, polyacetal, polypropylene, or polyethylene terephthalate.

  As described above, the lock mechanism 12 incorporates the lock member 41, the locking piece 44, the slider 48, and the like in a space formed by bending the base body 21, and has a compact and simple configuration. Further, since the mechanical parts such as the lock member 41 are covered by the base 21 and the seat plate 8, the mechanical parts can be protected.

  The unlocking piece 34 of the locking mechanism 12 is caulked at the shaft end through the through hole 34 a of the stepped shaft 35 and the through hole 29 of the upper plate portion 25 of the base member 21. It is rotatably supported around the stepped shaft 35 (about the substantially vertical axis). That is, the unlocking piece 34 is supported to be rotatable in a direction approaching the window sash S (hereinafter referred to as “window sash direction”) and in a direction away from the window sash S. The unlocking piece 34 is provided with a stopper 19 extending substantially horizontally. When the unlocking operation described later is not performed, the stopper 19 is engaged with a notch 50 on the upper side of the slider 48. Since the downward movement of 48 is restricted, it cannot be unlocked.

  Further, a tension coil spring 40 is hung between the spring hooking hole 34c of the unlocking piece 34 and the spring hooking hole 31 of the upper plate portion 25 of the base 21, and the distance between the spring hooking holes 34c and 31 is narrowed. Since the elastic urging force acts in the direction, the engagement between the stopper 19 and the notch 50 on the slider 48 is maintained when the unlocking operation is not performed.

  Further, the unlocking piece 34 is provided with a pressing piece 36 extending in a direction inclined upward from the horizontal direction. When the unlocking piece 34 is rotated in the clockwise direction as viewed from above, When the engagement between the stopper 19 and the notch 50 on the upper side of the slider 48 is released and the unlocking piece 34 is further rotated in the same direction and the rotation angle becomes a predetermined angle or more, the pressing piece 36 is inclined to the slider 48. Since the slider 48 is pressed down by coming into contact with the surface 51, the locking piece 44 is rotated by the downward movement of the slider 48 and is released from the lock member 41. Therefore, the lock member 41 is rotated in the unlocking direction to enter the unlocked state.

  Here, an operation piece 37 is attached to at least one unlocking piece 34 of the left and right top and bottom fixed locking devices 11, 11. The operation piece 37 and the unlocking piece 34 constitute an unlocking means for unlocking the vertically fixed locking device 11. The operation piece 37 and the unlocking piece 34 may be integrated. The operation piece 37 includes a contact plate portion 38 and a paragraph plate portion 39 extending stepwise from the contact plate portion 38 and an upright portion 39a formed by bending the rear end edge of the paragraph plate portion 39 upward. In addition, the contact plate portion 38 is formed with a through hole 38a and engagement holes 38b and 38c. The operating piece 37 is attached to the unlocking piece 34 by engaging the engaging pieces 34d that are stepped down from the left end of the unlocking piece 34 and extend leftward into the engaging holes 38b, 38c of the operating piece 37.

  When the operation piece 37 is attached to only one of the left and right top and bottom fixed locking devices 11 and 11, the operation piece 37 can be easily replaced. The operation piece 37 can be attached to the one that is easy to operate, and the unlocking operation can be performed with one action as will be described later.

  In a state where the operation piece 37 is attached to the unlocking piece 34, the through hole 34 b of the unlocking piece 34 and the through hole 38 a of the operation piece 37 are overlapped. In this state, the support shaft portion 16 that protrudes downward from the right end of the interlocking link bar 14 is fitted into the through hole 34b of the unlocking piece 34 and the through hole 38a of the operation piece 37 of the right upper fixed locking device 11. The interlocking link bar 14 can rotate relative to the unlocking piece 34 and the operation piece 37 about the substantially vertical axis by screwing the mounting screw 17 into the support shaft portion 16 from below. Similarly, a parallel link mechanism is constructed by attaching a support shaft portion 15 projecting downward from the left end of the interlocking link bar 14 to the left upper and lower fixed locking device 11, and left and right upper and lower fixed locking devices 11. , 11 and the rotation operation of the unlocking piece 34 around the one stepped shaft 35 and the rotation operation of the unlocking piece 34 around the other stepped shaft 35 are linked. Therefore, if an unlocking operation is performed on one of the left and right fixed upper and lower locking devices 11, 11, the unlocking operation on the other is also performed with one action of the operation.

  Since the interlocking link bar 14 is formed with the bent portion 18, the interlocking link bar 14 and the rising portion 39 a of the operation piece 37 are configured not to interfere with each other. Further, since the interlocking link bar 14 constituting such a parallel link mechanism has a small amount of movement in the front-rear direction, it does not interfere with the screen door 103 of the window sash (for example, the screen door front surface 103a in FIG. (Refer to the outline position of the interlocking link bar 14 in the chain line.)

  The lock receiver 13 includes a receiving pin 61 and a receiving base 62 that supports the receiving pin 61. As described above, the lock receiving device 13 is attached to the upper side of the shutter lower frame 6 with the mounting screws 63. Moreover, it is covered and protected by the resin cover 64, and the designability and safety are improved. Further, the lock mechanism 12 is also covered and protected by a resin cover 54 including a back plate portion 55 in which a notch 55a is formed, side plate portions 56 and 57, and screw cover portions 58 and 59, and is designed and safe. Etc. are improved (see FIGS. 2 and 5). The resin cover 54 is attached by using claw portions 56a and 57a (see FIG. 5) formed inside the side plate portions 56 and 57, and notches 22b and 23b of the side plate portions 22 and 23 of the base 21 of the lock mechanism 12 (see FIG. 5). (See also FIG. 6). The resin covers 54 and 64 are manufactured by injection molding of a resin such as ABS, AES, nylon, polyacetal, polypropylene, or polyethylene terephthalate.

  Next, the locking / unlocking operation of the lock mechanism 12 will be described. In the unlocked state of FIG. 7A, the state where the contact portion 41 d of the lock member 41 is in contact with the inner surface of the side plate portion 22 of the base 21 by the elastic biasing force of the tension coil spring 53 is maintained. Then, when the shutter curtain 3 is pulled out from the hoisting drum and the shutter curtain 3 is pulled down to the lowest position, the receiving pin 61 of the lock receiver 13 is used as shown in FIGS. 7 (a) to 7 (b). The push-up piece 41 a of the lock member 41 is pushed up, the lock member 41 rotates around the stepped shaft 43, the lock piece 41 b is positioned below the receiving pin 61, and the locking portion 41 c of the lock member 41 And the locking piece 44 abut (see FIG. 7B). In this state, the locking piece 44 restricts the rotation of the lock member 41 in the direction opposite to the rotation (unlocking direction), so that the lock piece of the lock mechanism 12 is placed below the receiving pin 61 of the lock receiver 13. The state where 41b is located is maintained and is in a locked state.

  In this locked state, if the unlocking piece 34 is rotated around the stepped shaft 35 in the window sash direction, for example, by holding the raised portion 39a of the operation piece 37 as shown in FIG. 8 (FIGS. 8 and 3). (See arrow B.) The engagement between the stopper 19 and the notch 50 of the slider 48 is released. When the unlocking piece 34 is further rotated in the same direction and the rotation angle becomes equal to or larger than a predetermined angle, the pressing piece 36 of the unlocking piece 34 comes into contact with the inclined surface 51 on the upper rear surface side of the slider 48 and the slider 48 is moved. 7B, the locking piece 44 of FIG. 7B is released from the locking portion 41c of the lock member 41, and the restriction on the rotation of the lock member 41 in the unlocking direction is released.

  Therefore, the lock member 41 is rotated about the stepped shaft 43 in the unlocking direction by the elastic biasing force of the tension coil spring 53, and the lock piece 41b is moved from the lower side of the receiving pin 61. As shown in FIG. The receiving pin 61 of the tool 13 is unlocked so that it can be separated from the locking mechanism 12. If the hand is released from the operation piece 37 after such a release operation, the operation piece 37 and the unlocking piece 34 are in a state before the unlocking operation (position of the solid line in FIG. 8) by the elastic biasing force of the tension coil spring 40. Returned to With such a simple configuration, the locking / unlocking operation of the locking device can be performed easily and reliably.

  In this way, the left and right top and bottom fixed locking devices 11 and 11 can be easily disengaged from the indoor side by one action by rotating the operation piece 37 of one of the top and bottom fixed locking devices 11 in the window sash direction. It can be locked. However, in a state where the window sash S is closed after locking (for example, the state where the sliding doors 101 and 102 are closed in FIG. 3), the operation piece 37 necessary for unlocking is rotated more than a predetermined angle in the window sash direction. Since it is regulated by the window sash S, it is not easily unlocked even when a hole is made in the shutter curtain 3 from the outdoor side.

  Moreover, as shown in FIGS. 5-7, since the interlocking link bar 14 is connected with the unlocking piece 34 and the operation piece 37 by the attachment screw 17 screwed together from the lower side, the interlocking link bar 14 is removed, It is also difficult to bend and unlock the operation piece 37.

  Furthermore, the base 21 of the lock mechanism 12 is fixed by mounting screws 60 and 60 that are screwed from below, and the lock receiver 13 is fixed by mounting screws 63 that are screwed from above. Since the mounting screws 63 are covered by the lock mechanism 11 in the locked state, the lock mechanism 12 or the lock receiver 13 is easy even if the shutter curtain 3 is perforated from the outdoor side. Will not be removed. Therefore, it is very difficult to remove the lock mechanism 12 or the lock receiver 13 when the up-and-down fixed type locking device 11 is in the unlocked state.

  As described above, when the window sash S is closed after locking, it is difficult to unlock the upper and lower fixed locking devices 11 and 11 even if the shutter curtain 3 is perforated from the outdoor side. Since it is difficult to remove the lock mechanism 12 or the lock receiver 13, the time required for the intruder from the outside to enter is significantly increased. Therefore, the shutter 1 to which the upper and lower fixed locking devices 11, 11 are attached. The crime prevention performance is very high.

  In the above description, the case where two fixed upper and lower locking devices 11 are provided on the left and right sides has been described, but the present invention is not limited to such a configuration. For example, only one or three or more fixed top and bottom locking devices 11 may be provided. When only one vertical locking device 11 is provided, the interlocking link bar 14 is not provided, but when the window sash S is closed, below the contact plate 38 of the operation piece 37. Movement of the lock mechanism 12 is restricted by the upper surface of the base 21 of the lock mechanism 12, the engagement holes 38 b and 38 c of the operation piece 37 and the engagement pieces 34 d of the unlocking piece 34 are disengaged to release the unlocking piece 34. Therefore, it is difficult to remove the operation piece 37, and the crime prevention performance is improved.

  Moreover, in the above description, although the structure which rotates the operation piece 37 and the unlocking piece 34 which are unlocking means about the substantially vertical axis (stepped shaft 35) was demonstrated, this invention is such a structure. It is not limited. For example, when the unlocking means is supported so as to be rotatable about a substantially horizontal axis and interlocked with the lock member 41 of the lock mechanism 12 and the window sash S is closed, the window of the operation piece of the unlocking means is closed. It is also possible to adopt a configuration in which the rotation in the sash direction is restricted and the unlocking is suppressed. However, in consideration of the fact that the configuration in which the left and right upper and lower fixed locking devices 11 and 11 can be unlocked in conjunction with each other is preferable in terms of operation, the function of suppressing the bending of the operation piece 37 by the interlocking link bar 14, and the like. A configuration in which the unlocking means is rotated about a substantially vertical axis is more preferable. Further, according to the configuration of the present embodiment, the unlocking means (the operation piece 37 and the unlocking piece 34), the stopper 19, the pressing piece 36, and the like can be configured with a simpler configuration. The reliability of the locking operation can be improved and the cost can be reduced.

It is a front view which shows the example of the shutter using the locking device which concerns on embodiment of this invention. It is a vertical right side view similarly. Similarly, it is a cross-sectional plan view. It is a vertical right side view showing the composition of the locking device concerning an embodiment of the invention. It is an exploded perspective view similarly. It is a principal part exploded perspective view similarly. It is explanatory drawing of the locking operation | movement of a locking device, (a) is a vertical front view which shows an unlocking state, (b) is a vertical front view which shows a locking state. It is a top view which shows unlocking operation. It is a longitudinal front view similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter 3 Shutter curtain 6 Shutter lower frame 8 Seat plate 11 Up-and-down fixed type locking device 12 Lock mechanism 13 Lock receiving device 14 Interlocking link bar 19 Stopper 21 Base 24 Back plate portion 25 Upper plate portion 28 Guide holes 29, 32, 33 Hole 34 Unlocked piece 34a, 34b Through hole 35 Stepped shaft 36 Pressing piece 37 Operation piece 38a Through hole 41 Lock member 41c Locking portion 42 Through hole 43 Stepped shaft 44 Locking piece 44a Slider support portion 45 Through hole 46 Step Shaft 47 with through-hole 48 Slider 49 Long hole 50 Notch 51 Inclined surface 52 Stepped shaft 61 Receiving pin B Unlocking operation direction S Window sash 101, 102 Sliding door

Claims (2)

In a shutter provided on the outdoor side of a window sash, a lock receiver attached to a shutter lower frame having a lock mechanism attached to a seat plate at the lower end of the shutter curtain and a receiving pin engaged with a lock member of the lock mechanism. A locking device comprising a tool,
An unlocking means that is rotatably supported by the base of the lock mechanism and rotates the lock member of the lock mechanism in the unlocking direction by rotating in a window sash direction by a predetermined angle or more;
The lock mechanism is supported on the base body so as to be rotatable about a substantially horizontal axis in the front-rear direction, and is supported on the base body so as to be rotatable about a substantially horizontal axis in the front-rear direction. A locking piece that abuts against the stopper and restricts the rotation of the locking member in the unlocking direction; and a slider that is slidably supported by the base body so as to be slidable in the vertical direction in conjunction with the rotation of the locking piece The locking piece is rotated by the downward movement of the slider and disengaged from the locking portion of the locking member, and the locking member is rotated in the unlocking direction to be unlocked. Yes,
The unlocking means is an unlocking piece supported on the base so as to be rotatable about a substantially vertical axis on the upper side of the base, and extends from the unlocking piece, and is integral with or separate from the unlocking piece. The operation piece of
In the locked state where the operation piece is in a position substantially parallel to the window sash surface, the downward movement of the slider is restricted by the engagement between the stopper provided on the unlocking piece and the upper portion of the slider,
When the operation piece is rotated in the window sash direction, the engagement between the stopper and the upper portion of the slider is released, and when the operation piece is further rotated in the same direction, the rotation angle becomes a predetermined angle or more. , The slider is pushed downward by a pressing piece provided on the unlocking piece to enter the unlocked state,
Wherein in the closed state of the window sash, shutter locking device, characterized in that the predetermined angle or more rotation required for unlocking the unlocking means is formed by regulations. A plurality of locking devices comprising the lock mechanism and the lock receiver;
At least one of the operating pieces and the unlocking pieces of the plurality of locking devices are connected by the interlocking link bars, made in conjunction with unlocking operation of the plurality of locking devices by operating the single operation lever according to claim 1, wherein Shutter locking device.

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