JP2021055369A - Crescent lock - Google Patents

Abstract

To provide a crescent lock capable of preventing locking out and having higher convenience.SOLUTION: A crescent lock 20, which has a mounting base 22 fixed to an indoor sliding sash, a crescent 24 rotatably provided on the mounting base 22, and an operation lever 26 operated to rotate the crescent 24 and in which the crescent 24 is rotated into engagement with and disengagement from a receiver provided on the outdoor sliding sash to lock and unlock the indoor and outdoor sliding sashes, is configured to include: a locking operation blocking mechanism 40 for blocking locking operation to the operation lever 26 in an unlocked state; and a locking operation blocking on/off mechanism 44 for turning on/off a function of blocking the locking operation by the locking operation blocking mechanism 40 by a user operation.SELECTED DRAWING: Figure 4

Description

The present invention relates to crescent tablets.

In many apartments such as condominiums, the sliding window facing the balcony is provided with a crescent lock that locks the window in a closed position. Residents and others unlock the crescent lock while going out of the room to the balcony so that they can return to the room at any time. However, when an infant or child plays with the crescent lock, the crescent lock is locked, and an accident (locking accident) in which a resident or the like is locked out on the balcony may occur.

There are various methods for preventing lockout accidents.
For example, it is a first method of configuring a crescent lock that can be unlocked from the outdoor side (see, for example, Patent Document 1) so that the crescent lock on the indoor side can be unlocked even if a resident or the like is locked out on the balcony. .. Also, for example, a device that prevents the window from closing and keeps it open (see, for example, Patent Documents 2 and 3) is installed on the sliding window, and the window is closed while the resident or the like is on the balcony. This is a second method of preventing locking by a crescent lock by blocking it. Further, for example, a detachable member for preventing the locking operation is provided on the crescent lock, and when a resident or the like goes out to the balcony, the member is attached to the crescent lock to prevent the locking operation of the crescent lock. (See, for example, Patent Document 4, Patent Document 5, Patent Document 6, and Patent Document 7). Further, for example, by providing a device that makes the crescent lock unlockable unless the operation lever of the crescent lock is operated at the same time, a fourth method is used to prevent the locking operation from being accidentally performed by an infant or a child. (See, for example, Patent Document 8).

Japanese Patent No. 5001466 Japanese Patent No. 5441155 Japanese Unexamined Patent Publication No. 2003-314140 JP-A-2015-3114 Japanese Unexamined Patent Publication No. 2011-85000 Japanese Unexamined Patent Publication No. 2002-367036 Utility Model Registration No. 3100084 Japanese Unexamined Patent Publication No. 10-184119

However, each method has the following problems.
That is, in the first method, since the crescent lock can be unlocked from the outdoor side, security measures are required. In the second method, it is necessary to install a device separate from the crescent lock in the sliding window. In the third method, there is a risk that the member for blocking the locking operation will be lost. Further, the fourth method is troublesome because simultaneous operation is always required even when the infant or child grows up and there is no risk of erroneously operating the crescent lock.

An object of the present invention is to provide a crescent lock that can prevent lockout and has higher convenience.

The present invention has a mounting base fixed to the indoor shoji, a crescent rotatably provided on the mounting base, and an operation lever operated to rotate the crescent, and is used for the outdoor shoji. By engaging and disengaging the crescent with the provided receiver by rotation, the crescent lock that locks and unlocks the indoor sash and the outdoor sash prevents the locking operation of the operating lever in the unlocked state. It is characterized by including a locking operation blocking mechanism and a locking operation blocking on / off mechanism that turns on / off the blocking of the locking operation by the locking operation blocking mechanism by a user operation.

In the present invention, in the crescent lock, the locking operation blocking mechanism is provided on one of the operating lever or the mounting base and a locking portion provided on one of the operating lever or the mounting base, and is provided on the other of the operating lever or the mounting base. A projecting piece that is locked to the locking portion in the locked state and can be moved to a non-locking position that does not engage with the locking portion, and a projecting piece that is moved to the unlocking position to lock the locking portion. A lock release operator operated to release the lock is provided, and the protruding piece is held in a state of being moved to the unlocked position while the operation is performed on the lock release operator. It is characterized by that.

In the present invention, in the crescent lock, the protruding piece is held by the elastic force of the elastic body in a state of protruding at a locking position engaging with the locking portion, and is released with respect to the operating lever in the locked state. The portion that comes into contact with the locking portion during the locking operation is formed on an inclined surface that generates a force in the direction of moving the protruding piece to the non-locking position by contact with the locking portion. It is characterized by.

In the present invention, in the crescent lock, the locking operation blocking on / off mechanism is such that when a predetermined user operation is performed on the unlocking operator, the protruding piece is formed even after the predetermined user operation. It is characterized in that the state of being moved to the unlocked position is maintained.

In the present invention, in the crescent lock, the projecting piece is immersed in the operating lever provided by itself or the mounting base, or is provided by itself, in association with the operation of the unlocking operator. It is characterized in that it moves to the non-locking position by sliding and moving in the plane of the operating lever or the mounting base.

The present invention is characterized in that, in the crescent lock, the locking portion has a convex locking piece that locks the protruding piece.

According to the present invention, in the crescent lock, when at least one of the indoor sash and the outdoor sash is not located in the closed position and the crescent does not engage with the receiver when the crescent rotates. It is characterized by comprising an empty hanging prevention mechanism for preventing the rotation of the operating lever.

According to the present invention, a crescent lock that can prevent lockout and has higher convenience can be obtained.

It is a perspective view which looked at the sliding sash which installed the crescent lock of embodiment of this invention from the room side. It is a figure which shows the structure of the crescent lock in an unlocked state, (A) is a front view, (B) is a side view. It is a front view which shows the locking operation state of a crescent lock. It is a side view which shows typically the structure of the locking operation blocking mechanism. It is a figure which shows typically the cross-sectional structure in the VV line of FIG. It is a perspective view which shows typically the structure of the back surface of the operation lever. It is explanatory drawing of the user operation for disengaging the engagement between a protrusion piece and a locking portion. It is a figure which shows the immersion operation of the protruding piece with the unlocking operation. It is a perspective view which shows typically the structure of the back surface of the operation lever which concerns on the modification of this invention. It is a figure which shows the structure of the crescent lock which concerns on other modification of this invention, (A) is a front view, (B) is a side view.

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

FIG. 1 is a perspective view of a sliding sash 1 on which the crescent lock 20 of the present embodiment is installed, as viewed from the indoor side.
The sliding sash 1 is a device (also referred to as an "opening device") having two glass shoji 2 and 4 and opening and closing an opening of a building by these glass shoji 2 and 4. The sliding sash 1 is provided with a crescent lock 20 which is a locking device for locking and unlocking the glass shoji 2 and 4.

More specifically, the sliding sash 1 includes a frame body 6 formed by assembling the upper frame 6A, the lower frame 6B, and the left and right vertical frames 6C and 6D in a rectangular shape, and the glass shoji 2 and 4 are the same. It is provided in the frame body 6 so as to be openable and closable in the left-right direction. The glass shoji 2 and 4 are a stile 8 formed by assembling an upper stile 8A, a lower stile 8B, a vertical stile 8C, and a combined stile 8D in a rectangular shape, and glass fitted in the stile 8 via packing. It is configured to include a panel 10. For the frame material included in the frame body 6 and the frame body 8, for example, an extruded aluminum alloy profile material is used.

The crescent lock 20 is provided on the combination stile 8D provided in the glass sash 2 corresponding to the internal sash, and is engaged with the crescent receiver 12 attached to the glass sash 4 corresponding to the external sash. Lock and unlock the glass shoji 2 and 4.

2A and 2B are views showing the configuration of the crescent lock 20 in the unlocked state, FIG. 2A is a front view, and FIG. 2B is a side view. Further, FIG. 3 is a front view showing a locking operation state of the crescent lock 20.
As shown in these figures, the crescent lock 20 includes a mounting base 22, a crescent 24, and an operating lever 26 that are attached to the combination stile 8D.
The mounting base 22 is a member made of a rectangular parallelepiped resin material or the like extending along the mating stile 8D, and is fixed to the mating stile 8D with screws or the like. As shown in FIG. 2 (A), the crescent 24 is a metal that is rotatably attached to the crescent shaft 27 on the front surface 22F of the mounting base 22 and engages with the crescent receiver 12 (FIG. 1) by the rotation. It is a member made of. The operating lever 26 is an operator for rotating the crescent 24, and is a member made of a rod-shaped resin material or the like whose one end is connected to the crescent shaft 27. As shown in FIG. 3, the operation of the operating lever 26 causes the crescent 24 to rotate about the crescent shaft 27 within a range of approximately 180 degrees, so that the crescent 24 engages with and disengages from the crescent receiver 12. That is, as shown in FIGS. 2A and 2B, when the operating lever 26 extends downward (the side of the lower stile 8B), the crescent 24 is removed from the crescent receiver 12 and the crescent lock 20 Is unlocked. On the other hand, in this unlocked state, when the operating lever 26 is rotated so as to extend upward (the side of the upper stile 8A), the crescent 24 engages with the crescent receiver 12, and the crescent lock 20 is locked. It becomes a state.

Further, the crescent lock 20 of the present embodiment includes an auxiliary lock mechanism 30 (FIG. 2 (B)), an emptying prevention mechanism 32 (FIG. 2 (A)), and a lockout prevention mechanism 34.

The auxiliary lock mechanism 30 is a mechanism that prevents the crescent 24 from rotating in the locked state, and includes an auxiliary lock stopper piece 36 as shown in FIG. 2 (B). The auxiliary lock stopper piece 36 is a member provided on the side surface 22S of the mounting base 22 so as to be linearly slidable, and engages with and disengages from the crescent shaft 27 inside the mounting base 22 according to its own sliding position. It is configured to be possible. The auxiliary lock stopper piece 36 slides between the locked position and the unlocked position, engages with the crescent shaft 27 when moved to the locked position in the locked state, and prevents the crescent shaft 27 from rotating. As a result, the rotation of the crescent 24 (operating lever 26) in the locked state is prevented. When the auxiliary lock stopper piece 36 moves to the unlocked position in the locked state, the auxiliary lock stopper piece 36 and the crescent shaft 27 are disengaged, and the crescent 24 (operation lever 26) becomes rotatable and the operation lever. You will be able to unlock by operating 26.

The empty hanging prevention mechanism 32 is not located at a closed position where at least one of the two glass shoji screens 2 and 4 completely closes the opening of the building, and even if the crescent 24 rotates, it is engaged with the crescent receiver 12. It is a mechanism that prevents the locking operation of the crescent lock 20 when it does not match, and includes a trigger 38 (see FIG. 2A), a rotation blocking mechanism (not shown), and a releasing mechanism (not shown). ,have. The trigger 38 protrudes from the side of the mounting base 22 to the side of the glass shoji 4 which is an external shoji, and when both the glass shoji 2 and 4 are in the closed position, the combination stile 8D of the glass shoji 4 or the crescent receiver is received. It is a member configured so that it can be immersed in the side of the mounting base 22 by coming into contact with the tool 12. The rotation blocking mechanism and the releasing mechanism are mechanisms provided on the mounting base 22, and the rotation blocking mechanism is a mechanism that blocks the rotation of the operating lever 26 by a predetermined angle or more. Further, the release mechanism is a mechanism that releases the rotation prevention of the operating lever 26 by the rotation prevention mechanism as the trigger 38 is immersed.

When the trigger 38 is in the protruding state, that is, when at least one of the two glass shoji 2 and 4 is not located in the closed position, the rotation blocking mechanism prevents the operation lever 26 from rotating, whereby the rotation of the operating lever 26 is blocked. The locking operation on the crescent lock 20 becomes impossible. On the other hand, when the trigger 38 is in the immersive state, that is, when both the glass shoji 2 and 4 are in the closed position, the release mechanism is activated and the rotation prevention by the rotation prevention mechanism is released. This enables a locking operation on the crescent lock 20. As the rotation blocking mechanism and the releasing mechanism, an appropriate mechanism known or well known in the technical field of the crescent lock 20 can be used.

Unlike the emptying prevention mechanism 32, the lockout prevention mechanism 34 is a locking operation blocking mechanism 40 (FIG. 2 (B)) that blocks the locking operation of the crescent lock 20 in the unlocked state regardless of the open / closed state of the glass shoji 2 and 4. )), Further, a locking operation blocking on / off mechanism 44 (FIG. 2B) that turns on / off the locking operation blocking function by the locking operation blocking mechanism 40 by a user operation. ..

More specifically, the locking operation blocking mechanism 40 is unlocked by locking the operating lever 26 of the crescent lock 20 in the unlocked state to the member (mounting base 22 in the present embodiment) included in the crescent lock 20. While preventing the operation lever 26 in the locked state from rotating, and while the slide operator 46, which will be described later, is being operated by a user such as a resident, the lock is released and the operation lever 26 is rotated. It has a mechanism to make it movable.
The locking operation blocking mechanism 40 prevents the rotation of the operating lever 26 in the unlocked state, thereby blocking the locking operation of the crescent lock 20. Further, since the user operation of the slide operator 46 is required to rotate the operation lever 26, when an infant or a child touches the crescent lock 20, it becomes difficult for the crescent lock 20 to be locked, and a lockout accident can be prevented. ..

When a predetermined user operation is performed on the slide operator 46, the lock operation blocking on / off mechanism 44 maintains a state in which the lock operation blocking mechanism 40 is released from the lock even after the predetermined user operation. Therefore, it has a mechanism for constantly turning off the locking operation blocking mechanism 40.
When the locking operation blocking on / off mechanism 44 is provided, for example, when an infant or a child grows up and the unlocked crescent lock 20 is not accidentally locked, the user can use it. By performing a predetermined operation on the slide operator 46, the locking operation blocking function by the locking operation blocking mechanism 40 can be kept closed (turned off) at all times. As a result, it is not necessary to operate the slide operator 46 at the same time each time the lock operation is performed, and the convenience of the crescent lock 20 is enhanced.

Next, the locking operation blocking mechanism 40 and the locking operation blocking on / off mechanism 44 will be described in more detail.

FIG. 4 is a side view schematically showing the configuration of the locking operation blocking mechanism 40, and FIG. 5 is a diagram schematically showing the cross-sectional configuration taken along the line VV of FIG. FIG. 6 is a perspective view schematically showing the configuration of the back surface 26R of the operating lever 26.
As shown in FIG. 4, the locking operation blocking mechanism 40 includes a protruding piece 50 provided on the operating lever 26, a locking portion 52 provided on the mounting base 22, and the slide operator 46 described above. There is. Each of the projecting piece 50 and the locking portion 52 is provided at a position where they engage with each other in the unlocked state. Specifically, in the unlocked state, as shown in FIG. 2 (B) above, the operating lever 26 extends downward from the crescent shaft 27, so that the back surface 26R of the operating lever 26 and the operating lever 26 are as shown in FIG. , The front surface 22F on the lower end side of the mounting base 22 faces each other. A protruding piece 50 is provided on the back surface 26R of the operating lever 26, and a locking portion 52 is provided on the lower end side of the front surface 22F of the mounting base 22.

The protruding piece 50 is a member that protrudes toward the mounting base 22 in the unlocked state, and the locking portion 52 includes a convex locking piece 53 that locks the protruding piece 50. As shown in FIG. 5, when the operating lever 26 is rotated by the locking operation, the protruding piece 50 comes into contact with the locking piece 53 and is locked, so that the operation of the operating lever 26 is prevented. The protruding piece 50 is always urged in the protruding direction by the elastic force (spring force) of the spring 54 provided inside the operating lever 26, and is locked to the locking piece 53 (locking position). Be retained. An appropriate elastic member may be used instead of the spring 54.

The slide operator 46 is an example of an unlocking operator operated to move the projecting piece 50 to a non-locking position where the locking piece 53 is unlocked. As shown in FIG. 4, the slide operator 46 is provided so as to be slidable in a slide groove 60 formed on the side surface 26S of the operating lever 26 and extending in the left-right direction (the direction in which the projecting piece 50 projects and immerses). As shown in FIG. 5, inside the operating lever 26, it is connected to the projecting piece 50 via the connecting piece 55. Since the projecting piece 50 is constantly urged in the projecting direction by the above-mentioned spring 54, the slide operator 46 is also arranged on the right end 60R side of the slide groove 60 during non-slide operation of the slide operator 46. To. Then, as shown in FIG. 7, when the slide operator 46 is slid to the left DL, which is the release direction, by the user, the projecting piece 50 also goes to the left via the connecting piece 55 against the elastic force of the spring 54. Move to direction DL. When the operating lever 26 is located at the left end 60L of the slide groove 60, the protruding piece 50 is immersed in the operating lever 26 and stored, and is in a state of being moved to the non-engaging position, and is engaged with the protruding piece 50. The engagement of the stop piece 53 is released. As a result, while the user slides the slide operator 46 to the left end 60L against the elastic force of the spring 54, the operation lever 26 becomes rotatable with respect to the unlocked crescent lock 20. You will be able to lock it.

The protruding piece 50 has a shape similar to that of a so-called latch bolt used for empty tightening of a door, and has a triangular shape that tapers toward the mounting base 22 as shown in FIGS. 5 and 6 above. It is formed. More specifically, as shown in FIG. 5, the surface 50A that comes into contact with the locking piece 53 during the locking operation is formed in a flat shape that is hooked on the locking piece 53. On the other hand, the surface 50B that comes into contact with the locking piece 53 during the unlocking operation is formed on an inclined surface. Therefore, as shown in FIG. 8, when the operating lever 26 is rotated in the rotation direction DR during the unlocking operation, the protruding piece 50 is brought into contact with the inclined surface 50B of the protruding piece 50 and the locking piece 53. A force is generated in the direction (leftward) of moving the lever to the unlocked position. Therefore, during the locking operation, the protruding piece 50 naturally immerses in the operation lever 26 side due to the contact between the protruding piece 50 and the locking piece 53, and the protruding piece 50 moves to the unlocked position. The slide operator 46 does not need to be slid so that the protruding piece 50 is not locked to the locking piece 53, and the usability is improved.

As shown in FIG. 4, the locking operation blocking on / off mechanism 44 has a lock groove 70 which is a vertical groove extending downward (or upward) from the left end 60L of the slide groove 60. By moving the slide operator 46 to the left end 60L by sliding movement, the protruding piece 50 is moved to the unlocked position, and in this state, the user moves the slide operator 46 to the vertical DT shown in FIG. When the vertical slide operation (predetermined user operation described above) is performed, the slide operator 46 enters the lock groove 70, and the slide movement in the left-right direction is restricted (locked). The connecting piece 55 of the slide operator 46 has a play (gap) at the engagement point with the protruding piece 50, and even if the slide operator 46 enters the lock groove 70 from the slide groove 60, the protruding piece 50 It is configured to maintain engagement with. As a result, when the slide operator 46 is located in the lock groove 70, the engagement between the protruding piece 50 and the locking piece 53 is always released (the function of the locking operation blocking mechanism 40 is off). It becomes. Further, in this state, when the user performs an operation of returning the slide operator 46 from the lock groove 70 to the slide groove 60, the protruding piece 50 and the locking piece 53 are engaged with each other, and the locking operation blocking function is turned on. Can be restored to.

As described above, according to the present embodiment, the following effects are obtained.

The crescent lock 20 according to the present embodiment has a locking operation blocking mechanism 40 that blocks the locking operation of the operation lever 26 in the unlocked state, and a function of blocking the locking operation by the locking operation blocking mechanism 40 with respect to the slide operator 46. It includes a locking operation blocking on / off mechanism 44 that is turned on / off by a slide operation.
According to the crescent lock 20, when the unlocked crescent lock 20 is not accidentally locked due to, for example, an infant or a child growing up, the user determines the slide operator 46. By performing the operation (vertical slide operation), the lock operation prevention function by the lock operation prevention mechanism 40 can be kept closed (turned off) at all times. As a result, it is not necessary to operate the slide operator 46 every time the lock operation is performed, and the convenience of the crescent lock 20 is enhanced.

In the crescent lock 20 of the present embodiment, the locking operation blocking mechanism 40 holds the state in which the protruding piece 50 is moved to the unlocked position while the slide operation is performed on the slide operator 46.
As a result, the engagement between the protruding piece 50 and the locking piece 53 is not disengaged unless the sliding operation is performed. Therefore, when an infant, a child, or the like plays with the crescent lock 20, the crescent lock 20 is not disengaged. Is less likely to be locked, and lockout accidents can be prevented more reliably.

In the crescent lock 20 of the present embodiment, the protruding piece 50 is held by an elastic force in a state of protruding at a locking position where it engages with the locking piece 53, and is accompanied by an unlocking operation of the operating lever 26 in the locked state. The surface 50B that comes into contact with the locking piece 53 is formed on an inclined surface that generates a force in the direction of moving the protruding piece 50 to the non-locking position by contact with the locking piece 53.
As a result, during the locking operation, the protruding piece 50 naturally moves to the unlocked position due to the contact between the protruding piece 50 and the locking piece 53, so that the user can lock the protruding piece 50 to the locking piece 53. It is not necessary to slide the slide operator 46 so as not to be operated, and the usability is improved.

In the crescent lock 20 of the present embodiment, the locking operation blocking on / off mechanism 44 is a protruding piece even after the vertical slide operation (predetermined user operation) is performed on the slide operator 46. The state in which 50 is moved to the unlocked position is maintained.
According to this configuration, the slide operator 46 for releasing the lock is used to perform an operation for turning off the lock operation blocking function by the locking operation blocking mechanism 40, thereby improving the operability. In addition, the number of parts can be reduced.

In the crescent lock 20 of the present embodiment, the protruding piece 50 moves to the non-locking position by being immersed in the operating lever 26 provided by the protruding piece 50 as the slide operation is performed on the slide operator 46.
As a result, the projecting piece 50 is housed in the operation lever 26 while the projecting piece 50 is maintained in the unlocked position by the locking operation blocking on / off mechanism 44, and the projecting piece 50 is housed in the operating lever 26. Prevents contact and damage to the lever and enhances durability.

In the crescent lock 20 of the present embodiment, since the locking portion 52 that locks to the protruding piece 50 is the convex locking piece 53, the locking portion 52 can be easily configured.

In the crescent lock 20 of the present embodiment, when either the glass shoji 2 which is an indoor shoji or the glass shoji 4 which is an outdoor shoji is not located in the closed position and the crescent 24 rotates, the crescent receiver 12 is engaged. It is provided with an empty hanging prevention mechanism 32 that prevents the operation lever 26 from rotating when it does not fit. This makes it possible to prevent the locking operation of the glass shoji 2 and 4 in an incompletely closed state.

It should be noted that the above-described embodiment is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.

In the above-described embodiment, the configuration in which the protruding piece 50 is immersed in the operating lever 26 as the slide operator 46 is slid and moves to the unlocked position is illustrated. However, the present invention is not limited to this, and as shown in FIG. 9, the protruding piece 50 extends in the extending direction of the operating lever 26 as the slide operator 46 slides in the back surface 26R of the operating lever 26 provided with the operating lever 26. It may be configured to slide to the DK and move to a non-locking position where the locking piece 53 is not locked. In this case, the side surface 26S of the operating lever 26 is provided with a slide groove 160 extending in the extending direction DK instead of the slide groove 60. Further, the end 160T of the slide groove 160 is provided with a lock groove 170 which is a lateral groove for restricting the slide movement of the slide operator 46 in the extending direction DK. Then, the user performs an operation (predetermined user operation) to move the slide operator 46 to the left DL at the end 160T of the slide groove 160, and enters the lock groove 170 to enter the protruding piece 50 and the locking piece. The engagement with 53 is always released (the function of the locking operation blocking mechanism 40 is off).

In the above-described embodiment, the configuration in which the protruding piece 50 is provided on the operation lever 26 and the locking portion 52 is provided on the mounting base 22 is illustrated, but the present invention is not limited to this, and the protruding piece 50 is provided on the mounting base 22 and locked. The portion 52 may be provided on the operating lever 26.

In the above-described embodiment, the locking portion 52 includes the locking piece 53, but the present invention is not limited to this, and the protruding piece 50 is locked by using the surface of the operating lever 26 or the mounting base 22 as the locking portion 52. May be good. Specifically, as shown in FIGS. 10A and 10B, a substantially rectangular parallelepiped projecting piece 250 projecting toward the operation lever 26 is provided on the front surface 22F of the mounting base 22, and the projecting piece 250 is provided. The piece 250 may be configured to be locked to the side surface 26S of the operating lever 26. In this case, the side surface 26S of the operating lever 26 corresponds to the locking portion.

Further, in the configurations shown in FIGS. 10A and 10B, a recess 280 is formed on the back surface 26R of the operating lever 26 for passing the protruding piece 250 during the rotation operation of the operating lever 26. The side surface 22S of the mounting base 22 is provided with a slide operator 246 that slides and moves the protruding piece 50 to a position where it enters the recess 280, and the end 260T of the slide groove 260 that the slide operator 246 slides and moves. Is formed with a lock groove 270 that regulates the slide movement of the slide operator 246.
Therefore, when the user performs an operation (predetermined user operation) to move the slide operator 246 to the lock groove 270 at the end portion 260T of the slide groove 260, the protrusion 250 and the locking portion are always engaged with each other. The unlocked state (the function of the locking operation blocking mechanism 40 is turned off) is set.

In the above-described embodiment, the configuration in which the locking portion 52 includes the convex locking piece 53 is illustrated, and in FIGS. 10A and 10B, the operating lever 26 or the mounting base is shown. The configuration in which the surface of 22 is used as the locking portion 52 is illustrated. However, the locking portion 52 is not limited to these configurations, and the locking portion 52 may be configured to include a concave hole portion into which the protruding piece 50 in the protruding state is inserted and the protruding piece 50 is locked. Further, in this configuration, a closing mechanism for closing the hole of the locking portion 52 and an opening / closing operator for operating the opening / closing of the hole by the closing mechanism are engaged as a locking operation blocking on / off mechanism 44. It may be provided on the operation lever 26 provided with the stop portion 52 or the mounting base 22. According to this configuration, when the user operates the opening / closing operator to close the hole portion of the locking portion 52, the protruding piece 50 is not locked to the locking portion 52, and the locking portion 52 is used. Locking can be turned off at all times.

In the above-described embodiment, the directions such as horizontal, vertical, left / right, up / down, and various numerical values and shapes are in a range (so-called uniform) that exerts the same action and effect as those directions, numerical values, and shapes unless otherwise specified. Range) is included.

1 Sliding sash 2 Glass shoji (indoor shoji)
4 Glass shoji (outdoor shoji)
8 stile 8D combination stile 12 Crescent receiver (receiver)
20 Crescent lock 22 Mounting base 24 Crescent 26 Operation lever 27 Crescent shaft 32 Emptying prevention mechanism 34 Lockout prevention mechanism 40 Locking operation blocking mechanism 44 Locking operation blocking on / off mechanism 46, 246 Slide controller 52 Locking part 53 Locking piece 54 Spring (elastic body)
60, 160, 260 slide groove 70, 170, 270 lock groove 260 slide groove

Claims (7)

A mounting base that is fixed to the indoor shoji and
Crescents rotatably provided on the mounting base and
The indoor sash and the outdoor sash are locked by having an operating lever operated to rotate the crescent and engaging and disengaging the crescent with a receiver provided on the outdoor sash by rotation. And in the crescent lock to unlock
A locking operation blocking mechanism that blocks the locking operation of the operating lever in the unlocked state,
A locking operation blocking on / off mechanism that turns on / off the function of blocking the locking operation by the locking operation blocking mechanism by a user operation, and a locking operation blocking on / off mechanism.
Crescent lock characterized by being equipped with. The locking operation blocking mechanism is
With the locking portion provided on one of the operating lever or the mounting base,
A protruding piece provided on the other side of the operating lever or the mounting base, which is locked to the locking portion in the unlocked state and can be moved to a non-locking position which does not engage with the locking portion.
A locking release operator that is operated to move the protruding piece to the unlocking position and release the locking is provided.
The crescent lock according to claim 1, wherein the protruding piece is held in a state of being moved to the unlocked position while the operation is performed on the unlocking operator. The protruding piece
It is held by the elastic force of the elastic body in a state of protruding to the locking position where it engages with the locking portion.
An inclination in which a portion that comes into contact with the locking portion due to the unlocking operation of the operating lever in the locked state generates a force in the direction of moving the protruding piece to the unlocking position by contact with the locking portion. Formed on the surface,
The crescent lock according to claim 2. The locking operation blocking on / off mechanism
A claim characterized in that, when a predetermined user operation is performed on the unlocking operator, the protruding piece is maintained in a state of being moved to the unlocked position even after the predetermined user operation. The crescent tablet according to 2 or 3. The protruding piece is subjected to an operation on the unlocking operator.
By immersing itself in the operating lever or the mounting base provided by itself, or by sliding in the plane of the operating lever or the mounting base provided by itself, the unlocked position is reached. Moving,
The crescent lock according to any one of claims 2 to 4, characterized in that. The crescent lock according to any one of claims 2 to 5, wherein the locking portion has a convex locking piece that locks the protruding piece. When at least one of the indoor sash and the outdoor sash is not located in the closed position and the crescent does not engage with the receiver when the crescent rotates, the rotation of the operating lever is prevented. The crescent lock according to any one of claims 1 to 6, further comprising an anti-empty mechanism.

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