JP2007197933A - Lock device and fittings - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device and fittings capable of improving operability in unlocking, even if an idle locking preventive mechanism and a double lock mechanism are arranged. <P>SOLUTION: A double lock member 19 is slidingly moved to a third position from a second position by operating an unlocking operation part 191 in a locking state, and a double lock can be fastened by regulating unlocking operation of a sickle lock 14 and a knob 15, by regulating a projection 161 of a back plate 16 by a regulating surface part 195. Since the sickle lock 14 and the knob 15 can be rotated only by releasing a double lock by slidingly moving the double lock member 19 to the second position by operating the unlocking operation part 191, the operability can be improved by easily performing the unlocking operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lock device and a joinery, and more particularly, to a lock device having a crescent lock and a lock receiver for locking a sliding door that can be opened and closed, and a joinery including the lock receiver.

  2. Description of the Related Art Conventionally, a lock device for locking a sliding window, a single-drawing window, or the like is generally provided with a crescent lock and a lock holder provided on an internal and external summon bowl. This crescent lock is usually designed so that the sickle lock provided on the summit of the indoor shoji can be engaged with the lock holder provided on the summit of the outdoor shoji. Yes. In such a crescent lock, a mechanism that prevents the lock operation in which the lock receiver is not in an engageable position or a double lock mechanism that restricts the unlocking operation of the crescent lock in the locked state. Has been proposed (see, for example, Patent Document 1).

In the crescent lock described in Patent Document 1, a sensing unit that senses that the lock receiver is in the engageable position is provided, and this sensing unit can prevent emptying. That is, when the lock receiver is not in the engageable position and the sensing unit does not contact the lock receiver, the rotation of the crescent lock is restricted and the lock operation cannot be continued, and the lock receiver is in the engageable position. When the sensing unit comes into contact with the lock holder, the sensing unit is moved so that the locking operation can be continued.
In addition, an automatic double lock mechanism is configured to prevent the unlocking operation by restricting the rotation of the crescent lock by locking the sensing portion to the pedestal in the locked state.

JP-A-9-158585

However, in the conventional crescent lock, when the sickle lock is engaged with the lock holder, the double lock is automatically applied. When the double lock is released, the sickle engaged with the lock holder is used. It is necessary to release the lock by the pedestal by pressing the sensing part located near the lock, and the handle must be rotated while holding the sensing part, and the operability at the time of unlocking deteriorates. There is a problem.
That is, in the crescent lock provided on the normal sliding window, the sickle lock engaged with the lock receiver in the locked state is located on the lower side, so that the sensing part near the sickle lock is difficult to press and the handle is not Since it is located on the upper side opposite to the sickle lock, it is very difficult to operate the handle with one hand while holding the sensing part. Since the double lock is automatically applied every time the door is locked, it is necessary to repeatedly perform the complicated unlocking operation as described above in the window that is frequently opened, closed, and unlocked. I was inferior.

  An object of the present invention is to provide a locking device and a fitting capable of improving the operability at the time of unlocking even when an emptying prevention mechanism and a double lock mechanism are provided.

  The locking device of the present invention includes a crescent lock fixed to an indoor summoning portion and a lock holder fixed to an outdoor summing portion among indoor and outdoor summing portions in a joinery having a sliding door that can be opened and closed. The crescent lock includes a pedestal fixed to the indoor summoning unit, and a locking position supported by the pedestal and engaged with the lock receiver. A sickle lock provided so as to be rotatable between an unlocking position where it is not engaged, an operation member connected to the sickle lock to rotate the sickle lock, and interlocked with the operation of the operation member. A detecting member for detecting the closed state and the non-closed state of the shoji, and an unlocking restricting member for restricting rotation of the sickle lock and the operation member in the unlocking direction when the sickle lock is in the locking position. The detection member is directed from the pedestal toward the outdoor side. A detection portion biased in a protruding direction and a restriction portion for restricting movement of the sickle lock, the operation member, or the unlocking restriction member, and the unlocking restriction member is provided on the sickle lock. The pedestal is slidably movable between a first position corresponding to the unlocked position, a second position separated from the first position by a predetermined distance, and a third position separated from the second position by a predetermined distance. When the operation member is locked with the pedestal at these second and third positions and can be positioned and operated from the indoor side, and the operation member is locked in the non-closed state of the shoji As the unlocking restricting member moves from the first position to the second position side, the detecting portion of the detecting member protrudes by a predetermined amount toward the outdoor shoji, so that the sickle lock, The operation member or the unlocking restriction member When the locking operation is restricted by being locked by the restricting portion of the member and the operation member is operated in the closed state of the shoji, the detecting portion of the detecting member comes into contact with the lock receiver so that the detecting portion Locking operation continues without locking the sickle lock, the operation member, or the unlocking restricting member to the restricting portion of the detection member without protruding to a predetermined amount, and the sickle lock is rotated to the locked position. The unlocking restricting member is slid to the second position in conjunction with the sickle lock and the operation member and locked to the pedestal, and the sickle lock is moved to the locked position. When the unlocking restriction member is slid from the second position to the third position in the rotated state, the unlocking operation of the sickle lock and the operation member is restricted by the unlocking restriction member, and the unlocking Sliding the lock restricting member from the third position to the second position When the sickle lock and the operation member are unlocked with the restriction removed, the unlocking restriction member is slid from the second position to the first position in conjunction with the sickle lock and the operation member. Features.

  Here, the joinery locked by the locking device of the present invention may be a sliding window, a sliding window, a sash window such as a raising / lowering window, or a sliding door or a sliding door. And when the joinery is a sliding window or sliding door, the shoji (movable shoji and door), fixed shoji, sleeve wall, vertical bone, etc. fixed to the building or frame outside or inside these doors However, the shoji is overlapped in the prospective direction and the sliding door of the movable shoji and the edge of the door constitute the indoor or outdoor summoning section. It is only necessary that the outdoor or indoor summoning unit is composed of bone or the like.

  According to the present invention described above, even when the locking operation is performed in a state where the lock receiver is not in the engageable position, the locking operation of the sickle lock and the operation member is restricted by the restriction portion of the detection member protruding by a predetermined amount. Therefore, it is possible to prevent emptying (empty hanging prevention mechanism). On the other hand, if the lock holder is in the engageable position, the locking operation can be continued without being restricted by the restriction portion of the detection member, and the sickle lock can be engaged with the lock holder and locked. , The unlocking restricting member moved to the second position is slid to the third position to restrict the unlocking operation of the sickle lock and the operating member, so that the double lock can be applied (double Locking mechanism). Then, by sliding the unlocking control member from the third position to the second position, the control by the unlocking control member can be released and the sickle lock and the operation member can be unlocked. By providing this unlocking restricting member on the pedestal so that it can be operated from the indoor side, the unlocking operation of rotating the sickle lock and the operating member after releasing the double lock becomes easy and the operability is improved. be able to. Furthermore, when it is not desired to apply the double lock, it is not necessary to move the unlocking restricting member to the third position when the sickle lock is locked. It becomes possible to lock, and the operability can be further improved in a window or the like that is frequently opened, closed, and unlocked.

  In addition, an unlocking restriction member is slidably provided on the pedestal, and the protrusion movement of the detection member is controlled by sliding of the unlocking restriction member, thereby detecting according to the setting of the unlocking restriction member, the form, dimensions, and the like. The projecting position and projecting amount of the member can be set widely, and the degree of freedom in designing the hanging mechanism corresponding to the design conditions can be increased. In addition, the locking operation of the sickle lock and the operation member is regulated when hanging, and the unlocking operation of the sickle lock and the operation member is restricted by applying a double lock, thereby restricting the action when hanging or double locking. Force can be applied to the unlocking control member, and compared to the conventional crescent lock that applies the control force to a small detection unit, it is more durable and can be prevented from overhanging and double locking is ensured. Can function.

At this time, in the locking device of the present invention, the unlocking restricting member is provided with a lock display means visible from the indoor side through the pedestal, and the unlocking restricting member includes the unlocking restricting member. It is preferably configured so that it cannot be visually recognized when slid to the first position and the second position, and is visible when the unlocking regulating member is slid to the third position.
According to such a configuration, in the state where the unlocking restriction member is slid to the third position, that is, in the double lock state where the unlocking operation of the sickle lock and the operation member is restricted by the unlocking restriction member, Since the lock display means is visible, the user can determine that the double lock is applied. In other words, the user can determine that the operation member can be unlocked when the unlocking restriction member is not in the third position but in the second position and is not in the double lock state. Accordingly, it is possible to prevent parts from being damaged due to an erroneous operation such as forcibly unlocking the operation member in the double lock state, and to prolong the product life.
At this time, in addition to the lock display means, the unlocking restriction member can be displayed as a display means that can be viewed from the indoor side while being slid to the first position or the second position. Display means may be provided.

In the locking device of the present invention, the lock receiver includes a lock receiving body having an engagement piece engaged with the sickle lock, and a detected portion with which the detection member abuts. It is preferable that the detected part is formed of a projecting piece protruding from the lock receiving body in a direction perpendicular to the prospective direction and perpendicular to the opening / closing direction of the shoji.
Here, the direction perpendicular to the prospective direction and perpendicular to the opening / closing direction of the shoji means a vertical direction (vertical direction) in a fitting in which the shoji is slid to the left and right, and the shoji is slid up and down. In joinery, it means the left-right direction (horizontal direction), that is, it may be a direction along the longitudinal direction of the outdoor side summoning part (summit bowl) to which the lock rest is attached.
According to such a configuration, in the lock receiver, since the detected portion is configured by the protruding piece protruding from the lock receiving body, the detection portion of the detection member may come into contact with the lock receiving body other than the detected portion. It is possible to reliably detect a state in which the shoji is normally closed. As a structure in which the detection unit is brought into contact only with the detection unit in this way, a configuration in which the detection unit is protruded inward from the lock receiving body toward the prospective direction can be considered. The crescent lock and the indoor side summoning part move to the indoor side by the amount of inward projection, resulting in a disadvantage that the expected size of the joinery increases. On the other hand, according to the structure of this invention which made the to-be-detected part protruded orthogonal to a prospective direction, the closed state of a shoji can be detected correctly, restraining the prospective dimension of joinery to a required minimum dimension.

At this time, in the locking device of the present invention, it is preferable that the detected portion is provided at a position substantially the same as the engagement piece.
According to such a configuration, since the detected portion is provided at substantially the same expected position as the engagement piece, the chamber is more than the expected position of the engagement piece that is required to engage and lock the sickle lock. The detected part does not protrude on the inner side, and expansion of the expected size of the joinery can be more reliably prevented.

Furthermore, in the locking device of the present invention, it is preferable that the detected portion is positioned to overlap the outdoor side of the pedestal in a state where the shoji is closed, and is hidden from the indoor side.
According to such a configuration, the detected part is concealed by the pedestal provided in the indoor summoning part with the shoji closed, so that the detected part provided protruding from the lock receiving body is conspicuous from the indoor side. The design of the lock device and the joinery can be improved, and the user's clothes and the like can be prevented from being caught on the detected portion.

On the other hand, the joinery of the present invention includes at least one shoji that can be slid open / closed in the left / right or up / down direction. It is characterized by being configured to be overlapped and closed and to be locked by any of the aforementioned locking devices.
According to such a joinery of the present invention, the operability of the locking and unlocking operation can be improved as in the above-described locking device, and the crime prevention property can be improved by the double lock mechanism.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
FIG. 1 is a side view showing a lock device 10 used for a sliding window 1 which is a fitting according to the first embodiment of the present invention. 2 and 3 are side views showing the operation of the locking device 10 during locking. FIG. 4 is a plan view showing the operation of the locking device 10 during locking. FIG. 5 is a front view showing the lock receiver 12 of the lock device 10. 6 and 7 are side views showing the locked state of the locking device 10, respectively.

  In FIG. 1, the sliding window 1 includes a pair of indoor and outdoor shojis 2 and 3 (FIG. 4) supported to be opened and closed inside a window frame (not shown). The shoji 2 and 3 are constructed by inserting glass panels inside the upper, lower, left, and right ridges, and the summoning tub 2A (the indoor summoning portion) And the outside summoning bowl 3A (outdoor outside summoning section) are overlapped in the prospective direction and closed. The shojis 2 and 3 are not limited to those fitted with glass panels, but may be those fitted with face materials such as resin panels. The sliding window 1 is a lock composed of a crescent lock 11 fixed to the inner summing bowl 2A of the indoor side shoji 2 and a lock holder 12 fixed to the outer summing bowl 3A of the outdoor side shoji 3. It is locked by the device 10.

  The crescent lock 11 is rotatably provided between a pedestal 13 that is fixed to the inner summon bowl 2A and a locked position that is supported by the pedestal 13 and engages with the lock receiver 12 and an unlocked position that does not engage. The sickle lock 14 is connected to the sickle lock 14 and a knob 15 is connected to the sickle lock 14 to rotate the sickle lock 14. Inside the pedestal 13, a back metal 16 fixed to the rotation shaft 141 of the sickle lock 14 and a sickle lock 14 and a knob 15 connected to the back metal 16 are attached to either the locked position or the unlocked position. Coil spring 17 that is energized, trigger 18 as a detection member that detects the closed state and non-closed state of shoji 2 and 3 in conjunction with the rotation of sickle lock 14, and sickle supported on base 13 so as to be slidable up and down. A double lock member 19 is provided as an unlocking restricting member for restricting the rotation of the lock 14 from the locking position to the unlocking position.

  The double lock member 19 has an unlocking operation portion 191 exposed from the pedestal 13 to the inside of the room, and a slide portion 192 connected to the unlocking operation portion 191 and provided inside the pedestal 13. Yes. The slide portion 192 includes first and second contact portions 193 and 194 that are in contact with the protrusion 161 (FIG. 3) of the back metal 16 connected to the coil spring 17 and the protrusion 161 of the back metal 16 in the locked position. A regulation surface portion 195 is provided that abuts and regulates the rotation of the sickle lock 14 in the unlocking direction. Further, the slide portion 192 includes a guide portion 196 that contacts a guided portion 184 (described later) of the trigger 18, and a first locked portion that is locked to a locking portion 183 (described later) of the trigger 18 when empty. 197, a second locked portion 198 provided at the lower end portion of the slide portion 192, and an extending piece 199 extending upward along the indoor side of the upper screw hole 131 in the base 13.

  Such a double lock member 19 is configured so that the protrusion 161 of the back metal 16 abuts against the first abutting portion 193 as the sickle lock 14 rotates from the unlocked position in the locking direction, and the sickle shown in FIG. The lock 14 is pushed upward from the first position corresponding to the unlocked position, and is slid to the second position corresponding to the locked position of the sickle lock 14 shown in FIGS. In the locked state of the sickle lock 14, the second locked portion 198 is locked to the locking portion 132 formed in the screw hole 131 below the pedestal 13, and the double lock member 19 is positioned at the second position. In addition, the unlocking operation portion 191 is slid downward to release the locking between the locking portion 132 and the second locked portion 168, so that the sliding movement to the third position shown in FIG. 7 is possible. The unlocking operation unit 191 is further slid upward to be positioned at the second position. Furthermore, the double lock member 19 is pushed downward from the second position by the protrusion 161 of the back metal 16 coming into contact with the second contact portion 194 as the sickle lock 14 is rotated to the unlocked position. It is slid to the first position.

  The trigger 18 is pivotally supported on the pedestal 13 by a pivot shaft 181, and is provided on one side (upper side) with the pivot shaft 181 interposed therebetween, and can be protruded from the pedestal 13, and the other A locking portion (regulating portion) 183 provided on the side and capable of locking the first locked portion 197 of the double lock member 19 and a guided portion 184 guided by the guide portion 196 of the double lock member 19. Are formed. The trigger 18 is urged by a torsion coil spring 185 provided between the pedestal 13 and the detection unit 182 in the direction protruding from the pedestal 13 toward the outdoor side (in the clockwise direction in the figure). The lower end portion of the guided portion 184 is pressed downward by the guide portion 196 of the double lock member 19 on the one position side, so that it is immersed in the base 13. Such a trigger 18 is rotated by the biasing force of the coil spring 185 when the slide portion 192 of the double lock member 19 slides upward and the downward pressing of the guided portion 184 by the guide portion 196 is released. The detection part 182 protrudes to the outdoor side.

  The lock holder 12 with which the sickle lock 14 of the crescent lock 11 is engaged and the detection portion 182 of the trigger 18 abuts is integrally formed by pressing from a metal plate, and is shown in FIGS. 4 and 5. As shown in FIG. 2, a plate-shaped lock receiving body 121 fixed to the outer summoning bowl 3A by screws, an opening 122 provided in the lock receiving body 121 and through which the sickle lock 14 is inserted, and the lock receiving body 121 An engagement piece 123 formed on a side end portion on the side farther from the outer summoning bowl 3A (left side in FIGS. 4 and 5) and engaged with the sickle lock 14, and left and right edges at the upper and lower edges of the lock receiving body 121 It has a pair of protruding pieces (detected parts) 124 provided at substantially intermediate positions. The pair of projecting pieces 124 are perpendicular to the prospective direction (vertical direction in FIG. 4) and perpendicular to the opening / closing direction of the shojis 2 and 3 (horizontal direction in FIG. 4) at substantially the same prospective position as the engagement piece 123. The upper and lower portions are formed so as to protrude from the lock receiving main body 121, and other protrusions and the like are not formed on the left and right sides of the protrusions 124, and the detection unit 182 of the trigger 18 is formed only on the protrusions 124. The detection unit 182 is not in contact with the lock receiving body 121 other than the protruding piece 124. The lock receiver 12 is not limited to one integrally formed by pressing from a metal plate material, and the lock receiver main body 121 and the protruding piece 124 that is the detected part are formed separately and then combined. It may be.

  The projecting dimension of the projecting piece 124 upward (or downward) is such that the detection unit 182 contacts and the detection unit 182 does not contact the lock receiving body 121 even when the doors 2 and 3 are adjusted. Is set to Further, the width dimension and the expected position of the projecting piece 124 are determined by the detection unit 182 even when the positional relationship between the crescent lock 11 and the lock receiver 12 is slightly deviated in consideration of the warpage and tolerance of the inner and outer summons 2A and 3A. It is set so as to come into contact with the projecting piece 124. Further, as shown in FIG. 5, in the state in which the shoji 2 and 3 are closed, the projecting piece 124 is positioned so as to overlap the outside of the base 13 of the crescent lock 11 and the distance between the tips of the upper and lower projecting pieces 124. Is set smaller than the vertical dimension of the pedestal 13, and is hidden by the pedestal 13 so that the protruding piece 124 is not visible (or inconspicuous) from the indoor side.

Next, the operation | movement at the time of locking in the locking device 10 is demonstrated.
Here, the locking operation in the locking device 10 is a state in which the sickle lock 14 and the knob 15 of the crescent lock 11 are in the unlocked position and the sickle lock 14 is not engaged with the lock receiver 12 as shown in FIG. 2 and 3, the knob 15 is operated upward on the indoor side (left side in the drawing) to rotate the sickle lock 14 in the locking direction (toward the locking position).
Further, as shown in FIG. 6, the unlocking operation in the locking device 10 is a state in which the sickle lock 14 and the knob 15 of the crescent lock 11 are in the locked position, and the sickle lock 14 is engaged with the lock receiver 12 to 15 is an operation to rotate the sickle lock 14 in the unlocking direction (toward the unlocking position) by operating 15 downward in the room.

  First, as shown in FIGS. 1 to 5, in a state where the lock receiver 12 is in an engageable position, that is, in a closed state in which the indoor and outdoor shoji is closed, the knob 15 is locked to rotate the sickle lock 14. In this case, the protrusion 161 of the back metal 16 pushes up the first contact portion 193 of the double lock member 19, and the unlocking operation portion 191 and the slide portion 192 slide upward. As the guide portion 196 of the slide portion 192 moves up, the guided portion 184 of the trigger 18 moves to the indoor side, the trigger 18 rotates, and the detection portion 182 protrudes to the outdoor side. When the detection part 182 protruding in this manner comes into contact with the upper protruding piece 124 of the lock receiver 12, the movement of the locking part 183 causes the first locked part of the slide part 192 to move as shown in FIGS. The first locked portion 197 is not locked to the locking portion 183. Accordingly, the unlocking operation portion 191 and the slide portion 192 of the double lock member 19 continue to slide upward, and the double lock member 19 slides to the second position and is moved to the locking portion 132 of the base 13. While the locked portion 168 is locked and positioned, the rotation operation of the sickle lock 14 is continued and the sickle lock 14 is engaged with the engagement piece 123 of the lock receiver 12.

  Next, as illustrated in FIG. 6, when the operation of the knob 15 is continued and the sickle lock 14 is rotated to the locking position, the protrusion 161 of the back metal 16 is more than the restriction surface portion 195 of the double lock member 19. Rotates to the outdoor side. In this locked state, the unlocking operation portion 191 is slid downward, the engagement between the second locked portion 198 and the locking portion 132 is released, and the double lock member 19 is slid to the third position. For example, as shown in FIG. 7, the protrusion 161 of the back metal 16 abuts on the regulation surface portion 195, so that the rotation of the back metal 16 in the unlocking direction is restricted, and thereby the unlocking operation of the sickle lock 14 and the knob 15. Is disabled, that is, a double lock is applied. Further, in this double locked state, the second locked portion 198 is positioned below the locking portion 132, so that the upward movement of the double lock member 19 is restricted and the double locked state is maintained. It has come to be. In the state where the sickle lock 14 is rotated to the locking position, the double lock member 19 does not have to be slid. Even in that case, the back metal 16 is urged in the locking direction by the coil spring 17. The sickle lock 14 is maintained in the locked position.

  In the locking device 10 that is locked as described above and is double-locked, the unlocking operation portion 191 of the double-locking member 19 is slid upward to move to the second position (FIG. 6). As a result, the restriction 161 of the back plate 16 by the restriction surface portion 195 of the slide portion 192 is removed, the back plate 16 can be rotated in the unlocking direction, and the unlocking operation of the sickle lock 14 and the knob 15 can be performed. As shown in FIG. 1, when the sickle lock 14 and the knob 15 are rotated to the unlocked position and unlocked, the protrusion 161 of the back metal 16 comes into contact with the second contact portion 194 of the slide portion 192. By depressing the slide part 192, the double lock member 19 slides to the first position, and the trigger 18 whose guide part 196 has pushed the guided part 184 rotates to immerse into the pedestal 13. In this unlocked state, since the back metal 16 is urged in the unlocking direction by the coil spring 17, the sickle lock 14 is maintained in the unlocked position.

Next, the operation | movement at the time of emptying in the locking device 10 is demonstrated based on FIGS.
FIG. 8 is a side view showing the operation of the locking device 10 when it is empty. FIGS. 9A and 9B are side views showing the operation of the locking device 10 when emptying, in an enlarged manner. FIG. 10 is a plan view showing the operation of the locking device 10 when it is empty.

  As shown in FIGS. 8 to 10, the sickle lock 14 is operated by locking the knob 15 in a state where the lock receiver 12 is not in the engageable position, that is, in a non-closed state where the indoor and outdoor shoji 2, 3 are not closed. When rotated, the detection unit 182 of the trigger 18 does not contact the protruding piece 124 of the lock receiver 12, so that the detection unit 182 protrudes by a predetermined amount, that is, the position where the trigger 18 contacts the pedestal 13. Rotate until When the detection portion 182 protrudes by a predetermined amount in this way, the locking portion 183 of the trigger 18 moves to a position above the restriction surface portion 195 of the slide portion 192, and the first locked portion 197 is engaged with the locking portion 183. Stopped. Therefore, the sliding of the double lock member 19 to the upper side of the slide portion 192 is restricted, and the sickle lock 14 cannot be rotated above this position, and it is determined from the user that it is in an empty state. It can be done. When the locking operation is stopped, that is, when the finger or hand is released from the knob 15, the back metal 16 is moved downward by the urging force of the coil spring 17, and the sickle lock 14 and the knob 15 are rotated in the unlocking direction. While being automatically returned to the unlocking position, the double lock member 19 is slid to the first position.

According to this embodiment, there are the following effects.
(1) That is, even if the locking operation is performed in the non-closed state where the shoji 2 and 3 are not closed (the state where the lock receiver 12 is not in the engageable position), the trigger 18 in which the detection unit 182 protrudes by a predetermined amount. Since the first locked portion 197 of the double lock member 19 is locked by the locking portion 183 and the locking operation of the sickle lock 14 and the knob 15 is restricted, it is possible to prevent emptying. If the locking operation is stopped, the sickle lock 14 and the knob 15 are automatically returned to the unlocked position by the urging force of the coil spring 17, so that it can be easily determined by the user that the paddle is in an empty state.

(2) On the other hand, in the state where the shoji 2, 3 is closed and the lock receiver 12 is in the engageable position, the locking operation can be continued and the unlocking operation unit 191 can be locked in this locked state. , The double lock member 19 is slid to the third position, and the protrusion 161 of the back metal 16 is regulated by the regulating surface portion 195, whereby the unlocking operation of the sickle lock 14 and the knob 15 can be regulated, Can be double locked. Then, the sickle lock 14 and the knob 15 can be rotated by simply operating the unlocking operation portion 191 to slide the double lock member 19 to the second position and releasing the double lock. The lock operation can be performed and the operability can be improved.

(3) Furthermore, when it is not desired to apply the double lock, the double lock member 19 does not have to be moved to the third position when the sickle lock 14 is locked, and the unlocking operation portion 191 is not slid. However, the unlocking operation of the sickle lock 14 and the knob 15 is possible, and in the case of the sliding window 1 that frequently opens, closes, and unlocks, there is no need to repeatedly perform a complicated double unlocking operation. Can be further improved.

(4) Since the double lock member 19 and the trigger 18 are provided on the pedestal 13, the member size is less likely to be restricted compared to the case where these members are provided on the sickle lock 14 side, and the member strength is increased. Can improve durability. Then, the locking portion 183 of the trigger 18, the locked portion 197 of the double lock member 19, and the protrusion 161 of the back metal 16 regulate the rotation of the sickle lock 14 and the knob 15 to prevent emptying. As a result, it is possible to reduce the force acting on each member by dispersing the operating force acting at the time of emptying, and further improve the durability. Further, in the double-locked state, by restricting the rotation of the sickle lock 14 and the knob 15 by the restricting surface portion 195 of the double-locking member 19 and the protrusion 161 of the back metal 16, the knob 15 can be moved while the double-lock is applied. The operating force acting when the unlocking operation is performed can be dispersed.

(5) Further, since the lock receiver 12 is formed with the protruding piece 124 protruding from the lock receiving main body 121 and the detecting portion 182 of the trigger 18 is in contact with the protruding piece 124, the protruding piece 124 is formed. In addition, the detection unit 182 does not come into contact, and the state in which the shoji 2 and 3 are normally closed can be reliably detected. Since the protruding piece 124 is provided so as to protrude vertically from the lock receiving body 121 at a position almost the same as the engagement piece 123, the detected portion protrudes more indoors than the lock receiving body 121 and the engaging piece 123. The prospective dimension of the sliding window 1 can be reduced compared with the case where it is provided.

(6) Further, since the protruding piece 124 of the lock receiver 12 is concealed by the pedestal 13 of the crescent lock 11 with the shoji 2 and 3 closed, the protruding piece 124 provided protruding from the lock receiving body 121 is provided indoors. Therefore, the design of the lock device 10 and the sliding window 1 can be improved, and the user's clothes and the like can be prevented from being caught on the projecting piece 124.

[Second Embodiment]
Next, 2nd Embodiment of this invention is described based on FIGS.
FIGS. 11A and 11B are side views showing a locking device 10A according to the second embodiment of the present invention. 12 (A), 12 (B) and 13 (A), 13 (B) are side views showing the operation of locking the locking device 10A, respectively.
10A of lock devices of this embodiment add the display function which displays a double lock state to the base 13 and the double lock member 19 in the lock device 10 of the said 1st Embodiment, Other structures are the lock devices 10. Is substantially the same. Hereinafter, the differences will be described in detail.

  In the locking device 10A, the pedestal 13 is provided with a window 133 that opens to the side surface on the indoor side, and on the side surface on the indoor side of the extended piece 199 of the double lock member 19, a lock display portion 199A serving as a lock display means. Is provided. The lock display portion 199 </ b> A is made of a plate material having a color different from the surface color of the double lock member 19, and is attached to the surface of the extension piece 199. Then, as shown in FIG. 11, in a state where the sickle lock 14 and the knob 15 are in the unlocked position and the double lock member 19 is in the first position, the lock display portion 199 </ b> A is concealed on the indoor side surface of the pedestal 13. It is made invisible from the indoor side. Also, as shown in FIG. 12, the lock display portion 199A is also in a state where the sickle lock 14 and the knob 15 are in the locked position and the double lock member 19 is in the second position (a state where the double lock is released). Is concealed on the side surface of the pedestal 13 so that it cannot be seen from the indoor side. On the other hand, as shown in FIG. 13, in a state where the sickle lock 14 and the knob 15 are in the locked position and the double lock member 19 is in the third position (double lock state), the lock display portion 199 </ b> A It is exposed to the indoor side through the window 133 and is visible from the indoor side.

According to this embodiment, in addition to the effects substantially similar to the above (1) to (6), the following effects can be achieved.
(7) That is, in the double lock state, the lock display portion 199A is configured to be visible through the window 133, so that the user can easily determine that the double lock is applied. If the heavy lock member 19 is in the second position, the lock display portion 199A is not visually recognized, and the user can determine that the unlocking operation is possible instead of the double lock state. Therefore, it is possible to prevent the sickle lock 14 and the knob 15 from being forcibly unlocked in the double-locked state, to prevent damage to parts due to such an erroneous operation, and to prolong the product life.

Note that the present invention is not limited to the above-described embodiments, and includes other configurations and the like that can achieve the object of the present invention. The following modifications and the like are also included in the present invention.
For example, in each said embodiment, although the example which provided the locking device 10 and 10A in the sliding window 1 was shown, the joinery of this invention is not restricted to such a sliding window 1, a single sliding window, a raising / lowering window, etc. It may be. In addition, the lock device can be applied to other than a sliding window or door, for example, it may be provided in a swing type window or door such as a casement window or a vertical window, and other than the window or door. The locking device of the present invention may be used for locking the opening / closing member.

  Moreover, in the said embodiment, although what has a pair of protrusions (detected part) 124 protruded up and down from the lock receiving main body 121 was employ | adopted as the lock receiver 12 of 10 A of lock devices, 10A, it is not restricted to this. Alternatively, a lock holder having one detected portion (the upper protruding piece 124 in the embodiment) corresponding to the detecting portion 182 of the trigger 18 may be used. However, in the above-described embodiment, since the lock receiver 12 is formed symmetrically in the vertical direction, when the lock devices 10 and 10A are attached to a wrong window or the like, it is possible to attach the lock receiver 12 by reversing left and right. There is an effect that the number of parts can be reduced by making the lock holder 12 common. At this time, a notch for cutting may be provided at the base end portion of the upper and lower protruding pieces 124, and the protruding piece 124 on the side where the detecting unit 182 does not contact may be separated.

Moreover, in the said 2nd Embodiment, although the lock display part 199A visible only in the case of a double lock state was provided in the extension piece 199 of the double lock member 19, not only this but the double lock member 19 is provided. May be provided in the second position, that is, in a state where the double lock is released, and a display portion having a color different from that of the lock display portion 199A may be provided. With such a configuration, it becomes easier to determine whether it is in a double-locked state or a non-double-locked state, and operability can be further improved.
In the second embodiment, the lock display portion 199A (lock display means) is composed of a plate material attached to the extended piece 199 of the double lock member 19, but the lock display portion is not limited thereto. Instead, it may be painted or sealed. Furthermore, the configuration for making the lock display means visible from the indoor side is not limited to the window 133 provided on the pedestal, and for example, a protrusion is formed on the double lock member 19 and an insertion hole is formed on the pedestal 13. A configuration in which the protruding piece protrudes from the insertion hole when the double lock member 19 is slid to the third position may be employed.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

It is a side view which shows the locking device used for the fitting which concerns on 1st Embodiment of this invention. It is a side view which shows the operation | movement at the time of locking of the said locking device. It is a side view which shows the operation | movement at the time of locking of the said locking device. It is a top view which shows the operation | movement at the time of locking of the said locking device. It is a front view which shows the lock receiver of the said locking device. It is a side view which shows the locking state of the said locking device. It is a side view which shows the locking state of the said locking device. It is a side view which shows the operation | movement at the time of emptying of the said locking device. (A), (B) is a side view which expands and shows the operation | movement at the time of emptying of the said locking device. It is a top view which shows the operation | movement at the time of emptying of the said locking device. (A), (B) is a side view which shows the locking device of 2nd Embodiment of this invention. (A), (B) is a side view which shows the operation | movement at the time of locking of the said locking device. (A), (B) is a side view which shows the operation | movement at the time of locking of the said locking device.

Explanation of symbols

  2 ... Indoor shoji, 2A ... Inner summon bowl (indoor summoning section), 3 ... Indoor shoji, 3A ... Outer summon bowl (outdoor summoning section), 10, 10A ... Locking device, 11 ... Crescent 12: Lock receiving, 13 ... Base, 14 ... Sickle lock, 15 ... Knob as operation member, 18 ... Trigger as detection member, 19 ... Double lock member as unlocking restriction member, 121 ... Lock receiving body , 123, engagement pieces, 124, projecting pieces that are detected parts, 133, windows, 182, detection parts, 183, locking parts that are restricting parts, 199 A, lock display parts (lock display means).

Claims (6)

Among the indoor and outdoor summoning parts in a joinery with a sliding door that can be opened and closed, the joinery is engaged by engagement of a crescent lock fixed to the indoor summoning part and a lock holder fixed to the outdoor summing part. A locking device for locking
The crescent lock is rotatably provided between a pedestal fixed to the indoor summoning portion and a locked position that is supported by the pedestal and engages the lock receiver and an unlocked position that does not engage. A sickle lock, an operation member connected to the sickle lock for rotating the sickle lock, and a detection member for detecting a closed state and a non-closed state of the shoji in conjunction with the operation of the operation member; The unlocking restricting member for restricting rotation of the sickle lock and the operation member in the unlocking direction when the sickle lock is in the locking position,
The detection member is provided with a detection portion biased in a direction protruding from the pedestal toward the outdoor side, and a restriction portion for restricting movement of the sickle lock, the operation member, or the unlocking restriction member. And
The unlocking restricting member includes a first position corresponding to the unlocking position of the sickle lock, a second position separated from the first position by a predetermined distance, and a third position separated from the second position by a predetermined distance. And is provided on the pedestal so as to be slidable between the first position and the second position and the third position.
When the operation member is locked in the non-closed state of the shoji, the detection unit of the detecting member moves the outdoor shoji as the unlocking regulating member moves from the first position to the second position. By projecting a predetermined amount toward, the sickle lock, the operation member, or the unlocking restriction member is locked to the restriction part of the detection member, and the locking operation is restricted,
When the operation member is operated in the closed state of the shoji, the detection portion of the detection member abuts on the lock receiver so that the detection portion does not protrude to a predetermined amount, the sickle lock, the operation member, Alternatively, the unlocking restricting member is not locked to the restricting portion of the detection member, and the locking operation is continued, and the sickle lock is rotated to the locked position and engaged with the lock receiver, and these sickle locks And the unlocking restricting member is slid to the second position in conjunction with the operation member and locked to the pedestal,
When the unlocking restricting member is slid from the second position to the third position while the sickle lock is rotated to the locking position, the unlocking restricting member unlocks the sickle lock and the operation member. Operation is regulated,
When the unlocking restriction member is slid from the third position to the second position to release the restriction and the sickle lock and the operation member are unlocked, the unlocking member is interlocked with the sickle lock and the operation member. A lock device in which the lock restricting member is slid from the second position to the first position. The unlocking restricting member is provided with a lock display means visible from the indoor side through the pedestal,
The lock display means is configured to be invisible when the unlocking restriction member is slid to the first position and the second position, and to be visible when the unlocking restriction member is slid to the third position. The locking device according to claim 1. The lock receiver is configured to include a lock receiver main body having an engagement piece engaged with the sickle lock, and a detected portion with which the detection member abuts.
The locking device according to claim 1, wherein the detected portion is formed of a protruding piece that protrudes from the lock receiving body in a direction orthogonal to the prospective direction and orthogonal to the opening / closing direction of the shoji.   The locking device according to claim 3, wherein the detected portion is provided at a position substantially the same as the engagement piece.   5. The locking device according to claim 3, wherein the detected portion is positioned so as to overlap the outdoor side of the pedestal in a state where the shoji is closed, and is hidden from the indoor side.   The apparatus comprises at least one shoji that can be opened and closed by sliding left and right or up and down, and the summoning bowl of this shoji and the summoning bowl of another shoji or other summoning section are closed in an overlapped direction. A joinery configured to be lockable by the locking device according to claim 5.

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