JP7353896B2 - crescent tablet - Google Patents

Description

The present invention relates to a crescent tablet.

In many housing complexes such as condominiums, sliding windows facing balconies are provided with crescent locks that lock the windows in the closed position. Residents leave the crescent locks unlocked while exiting their rooms to the balconies, so they can return indoors at any time. However, when an infant or child plays with the crescent lock, the crescent lock may become locked, resulting in an accident in which residents are locked out of the balcony (lockout accident).

There are various methods for preventing lockout accidents.
For example, a first method is to configure a crescent lock so that it can be unlocked from the outside (for example, see Patent Document 1), and to enable residents to unlock the crescent lock on the indoor side even if they are locked out on the balcony. . For example, a device that prevents windows from closing and maintains them in an open state (for example, see Patent Document 2 and Patent Document 3) may be installed on sliding windows to prevent windows from closing while residents are out on their balconies. This is the second method of preventing locking using a crescent lock. For example, a removable member that prevents the locking operation may be provided on the crescent lock, and when a resident goes out to the balcony, the member may be attached to the crescent lock to prevent the crescent lock from being locked. (For example, see Patent Document 4, Patent Document 5, Patent Document 6, and Patent Document 7). In addition, for example, a fourth method is to prevent accidental locking by infants, children, etc. by providing a device that makes the crescent lock unlockable unless the crescent lock is operated simultaneously with the operation lever of the crescent lock. (For example, see Patent Document 8).

Patent No. 5004466 Patent No. 5441155 Japanese Patent Application Publication No. 2003-314140 Japanese Patent Application Publication No. 2015-3114 Japanese Patent Application Publication No. 2011-85000 Japanese Patent Application Publication No. 2002-367036 Utility model registration No. 3100084 Japanese Patent Application 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 outside the room, security measures are required. In the second method, it is necessary to install a separate device in addition to the crescent lock on the sliding window. In the third method, there is a risk that the member for preventing the locking operation may be lost. In addition, the fourth method is troublesome because even when the infant or child grows up and there is no longer a risk of erroneously operating the crescent lock, simultaneous operations are always required.

An object of the present invention is to provide a crescent lock that can prevent locking out and is more convenient.

The present invention has a mounting base fixed to an indoor shoji, a crescent rotatably provided on the mounting base, and an operation lever operated to rotate the crescent, and the present invention is mounted on an outdoor shoji. In the crescent lock for locking and unlocking the indoor shoji and the outdoor shoji, the crescent lock locks and unlocks the indoor shoji and the outdoor shoji by rotationally engaging and disengaging the crescent from a provided receiver, thereby preventing a locking operation on the operating lever in the unlocked state. a locking operation preventing mechanism; and a locking operation preventing on/off mechanism that turns on/off a function of blocking a locking operation by the locking operation preventing mechanism according to a user's operation, and the locking operation preventing mechanism includes the operating lever, or a locking portion provided on one side of the mounting base and the operating lever, or provided on the other side of the mounting base, and is locked to the locking portion in the unlocked state, and is locked to the locking portion. a protruding piece that is movable to an unlatched position where the protruding piece does not fit, and a lock release operator that is operated to move the protruding piece to the unlatched position and release the lock; The protruding piece maintains the state moved to the unlocked position while the release operator is operated .

In the crescent lock of the present invention, the protruding piece is held in a protruding state in a locking position where it engages with the locking part by the elastic force of an elastic body, and the protruding piece is held in a protruding state in a locking position where it engages with the locking part, and the projecting piece is held in a state in which it is released by the elastic force of an elastic body. A portion that comes into contact with the locking portion when the lock is operated is formed on an inclined surface that generates a force in the direction of moving the protruding piece to the non-locking position through contact with the locking portion. It is characterized by

In the crescent lock of the present invention, the locking operation prevention on/off mechanism is configured such that when a predetermined user operation is performed on the unlocking operator, the protruding piece remains closed even after the predetermined user operation. It is characterized by maintaining the state moved to the non-latching position.

In the crescent lock of the present invention, the protruding piece sinks into the operation lever provided thereon or into the mounting base, or the protruding piece immerses itself into the operation lever provided thereon or into the mounting base when the lock release operator is operated. The control lever may be moved to the unlocked position by sliding within a 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.

The present invention provides, in the crescent lock, when at least one of the indoor shoji and the outdoor shoji is not in the closed position and does not engage with the receiver when the crescent rotates. The invention is characterized in that it includes an empty hooking prevention mechanism that prevents rotation of the operating lever.

According to the present invention, a crescent tablet that can prevent locking out and is more convenient can be obtained.

It is a perspective view of a sliding sash in which a crescent lock according to an embodiment of the present invention is installed, viewed from the indoor 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. FIG. 3 is a front view showing a state in which the crescent lock is in a locked state. FIG. 3 is a side view schematically showing the configuration of a locking operation prevention mechanism. 5 is a diagram schematically showing a cross-sectional configuration taken along the line VV in FIG. 4. FIG. FIG. 3 is a perspective view schematically showing the configuration of the back surface of the operating lever. FIG. 6 is an explanatory diagram of a user operation for releasing the engagement between the protruding piece and the locking part. It is a figure which shows the retracting operation|movement of a protrusion piece accompanying unlocking operation. It is a perspective view which shows typically the structure of the back surface of the operation lever based on the modification of this invention. It is a figure which shows the structure of the crescent lock based on another modification of this invention, (A) is a front view, (B) is a side view.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a double-sliding sash 1 in which a crescent lock 20 of this embodiment is installed, viewed from the indoor side.
The double sliding sash 1 has two glass shojis 2 and 4, and is a device (also referred to as an "opening device") that opens and closes an opening in a building using these glass shojis 2 and 4. The double 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 double-sliding sash 1 includes a frame 6 formed by assembling an upper frame 6A, a lower frame 6B, and left and right vertical frames 6C, 6D in a rectangular shape, and the glass shoji 2, 4 has this structure. It is provided within the frame 6 so that it can be opened and closed in the left-right direction. The glass shoji 2, 4 includes a frame body 8 formed by assembling an upper frame 8A, a lower frame 8B, a vertical frame 8C, and a combined frame 8D in a rectangular shape, and a glass frame fitted into this frame body 8 through a packing. It is configured to include a panel 10. For example, an extruded aluminum alloy material is used as the frame material of the frame body 6 and the frame body 8.

The crescent lock 20 is provided on a stile 8D of the glass shoji 2, which corresponds to an inner shoji, and is attached to and detached from the crescent receiver 12 attached to the glass shoji 4, which corresponds to an outer shoji. Lock and unlock glass shoji 2 and 4.

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

Furthermore, the crescent lock 20 of this embodiment includes an auxiliary locking mechanism 30 (FIG. 2(B)), an empty locking prevention mechanism 32 (FIG. 2(A)), and a closing prevention mechanism 34.

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

The empty hanging prevention mechanism 32 prevents at least one of the two glass shojis 2 and 4 from being in the closed position where the opening of the building is fully closed, and even if the crescent 24 rotates, it does not engage the crescent holder 12. This is a mechanism that prevents the crescent lock 20 from being locked when the lock is not aligned, and includes a trigger 38 (see FIG. 2(A)), a rotation prevention mechanism (not shown), and a release mechanism (not shown). ,have. The trigger 38 protrudes from the mounting base 22 side toward the glass shoji 4, which is an outer shoji, and when both the glass shoji 2 and 4 are in the closed position, the trigger 38 is connected to the connecting frame 8D or the crescent holder of the glass shoji 4. This member is configured to be able to be inserted into the mounting base 22 side by coming into contact with the tool 12. The rotation prevention mechanism and the release mechanism are mechanisms provided on the mounting base 22, and the rotation prevention mechanism is a mechanism that prevents the operation lever 26 from rotating beyond a predetermined angle. The release mechanism is a mechanism that releases the rotation prevention mechanism of the operating lever 26 when the trigger 38 is retracted.

When the trigger 38 is in the protruding state, that is, when at least one of the two glass shojis 2 and 4 is not in the closed position, the rotation prevention mechanism prevents the operation lever 26 from rotating. The crescent lock 20 cannot be locked. On the other hand, when the trigger 38 is in the retracted state, that is, when the glass shoji 2 and 4 are both in the closed position, the release mechanism is activated and the rotation prevention by the rotation prevention mechanism is released. This allows the crescent lock 20 to be locked. Note that, for these rotation prevention mechanism and release mechanism, any known or well-known appropriate mechanism in the technical field of the crescent lock 20 can be used.

The locking prevention mechanism 34 is different from the empty hanging prevention mechanism 32, and the locking prevention mechanism 40 (FIG. 2 (B )), and a locking operation prevention on/off mechanism 44 (FIG. 2(B)) that turns on/off the locking operation prevention function of the locking operation prevention mechanism 40 by user operation. .

More specifically, the locking operation prevention mechanism 40 locks the operation lever 26 of the crescent lock 20 in the unlocked state to a member (the mounting base 22 in this embodiment) of the crescent lock 20, thereby preventing the locking operation from being unlocked. In addition to preventing rotation of the operation lever 26 in the locked state, the lock is released and the operation lever 26 is rotated while a user such as a resident is operating the slide operation element 46, which will be described later. It has a mechanism that allows it to move.
The locking operation prevention mechanism 40 prevents rotation of the operating lever 26 in the unlocked state, thereby preventing the crescent lock 20 from being locked. Furthermore, since the user's operation on the slide operator 46 is required to rotate the operation lever 26, when an infant or child tampers with the crescent lock 20, it becomes difficult for the crescent lock 20 to be locked, and an accident of being locked out can be prevented. .

When a predetermined user operation is performed on the slide operator 46, the locking operation prevention on/off mechanism 44 maintains the unlocked state by the locking operation prevention mechanism 40 even after the predetermined user operation. It has a mechanism that always turns off the locking operation prevention mechanism 40.
By providing this locking operation prevention on/off mechanism 44, when an infant or child grows up and the unlocked crescent lock 20 is no longer accidentally locked, the user can By performing a predetermined operation on the slide operator 46, the locking operation preventing function of the locking operation preventing mechanism 40 can be kept closed (turned off) at all times. This eliminates the need to operate the slide operator 46 at the same time each time a locking operation is performed, increasing the convenience of the crescent lock 20.

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

FIG. 4 is a side view schematically showing the structure of the locking operation prevention mechanism 40, and FIG. 5 is a diagram schematically showing the cross-sectional structure taken along the line VV in 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.
As shown in FIG. 4, the locking operation prevention 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 above-mentioned slide operating element 46. There is. The protruding piece 50 and the locking part 52 are each 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), the operating lever 26 extends downward from the crescent shaft 27, and as shown in FIG. , and the front face 22F on the lower end side of the mounting base 22 face each other. A projecting 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, thereby preventing the operating lever 26 from being operated. This protruding piece 50 is always urged in the protruding direction by the elastic force (spring force) of a spring 54 installed inside the operating lever 26, and is at a position where it is locked with the locking piece 53 (locking position). Retained. Note that an appropriate elastic member may be used instead of the spring 54.

The slide operator 46 is an example of a lock release operator that is operated to move the protrusion piece 50 to a non-locking position where the locking by the locking piece 53 is released. As shown in FIG. 4, the slide operator 46 is slidably provided in a slide groove 60 extending in the left-right direction (the direction in which the protruding piece 50 protrudes and retracts) formed on the side surface 26S of the operating lever 26. As shown in FIG. 5, inside the operating lever 26, it is connected to a protruding piece 50 via a connecting piece 55. Since the protruding piece 50 is always urged in the protruding direction by the spring 54 described above, when the slide operator 46 is in a non-sliding operation, the slide operator 46 is also disposed on the right end 60R side of the slide groove 60. Ru. As shown in FIG. 7, when the user slides the slide operator 46 in the left direction DL, which is the release direction, the protruding piece 50 also moves to the left via the connecting piece 55 against the elastic force of the spring 54. Move in direction DL. Then, when the operating lever 26 is located at the left end 60L of the slide groove 60, the protruding piece 50 is retracted and stored in the operating lever 26 and moved to the non-engaging position, and is engaged with the protruding piece 50. The engagement of the stopper 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 operating lever 26 becomes rotatable, relative to the unlocked crescent lock 20. You will be able to perform lock operations.

The protruding piece 50 has a shape similar to that of a so-called latch bolt used for empty-tightening 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, a surface 50A that comes into contact with the locking piece 53 during the locking operation is formed into a planar shape that is caught by 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 as 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 A force is generated in the direction (to the left) that moves the to the unlocked position. Therefore, when performing a locking operation, the protruding piece 50 is automatically retracted into the operating 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 non-latching position, so that the user can There is no need to constantly slide the slide operator 46 so that the protruding piece 50 is not locked by the locking piece 53, which improves usability.

As shown in FIG. 4, the locking operation prevention on/off mechanism 44 has a lock groove 70 that is a vertical groove extending downward (or upward) from the left end 60L of the slide groove 60. By sliding the slide operator 46 to the left end 60L, the protruding piece 50 is moved to the unlocked position, and in this state, the user moves the slide operator 46 in the vertical direction DT shown in FIG. When the slide operator 46 is vertically slid (the above-mentioned predetermined user operation), the slide operator 46 enters the lock groove 70, and the slide movement in the left and right direction is restricted (locked). The connecting piece 55 of the slide operator 46 has play (gap) at the engagement portion with the protruding piece 50, so that even if the slide operator 46 enters the lock groove 70 from the slide groove 60, the protruding piece 50 The device is configured to maintain engagement with the device. 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 prevention mechanism 40 is off). becomes. In this state, when the user returns 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, and the locking operation prevention function is turned on. can be restored to.

As explained above, according to this embodiment, the following effects are achieved.

The crescent lock 20 according to the present embodiment includes a locking operation preventing mechanism 40 that prevents a locking operation on the operation lever 26 in the unlocked state, and a function of blocking the locking operation by the locking operation preventing mechanism 40 on the slide operator 46. It includes a locking operation prevention on/off mechanism 44 that is turned on and off by a slide operation.
According to the crescent lock 20, when the crescent lock 20 in the unlocked state is no longer accidentally locked due to, for example, an infant or child growing up, the user can move the slide operator 46 to a predetermined position. By performing the operation (vertical slide operation), the locking operation inhibiting function of the locking operation inhibiting mechanism 40 can be kept closed (turned off) at all times. This eliminates the need to operate the slide operator 46 every time a locking operation is performed, thereby increasing the convenience of the crescent lock 20.

In the crescent lock 20 of this embodiment, while the locking operation prevention mechanism 40 is performing a sliding operation on the slide operator 46, the protruding piece 50 is maintained in the unlocked position.
As a result, unless a sliding operation is performed, the engagement between the protruding piece 50 and the locking piece 53 is not released, so when an infant or child plays with the crescent lock 20, the crescent lock 20 This makes it difficult for the door to be locked, and lock-out accidents can be more reliably prevented.

In the crescent lock 20 of the present embodiment, the protruding piece 50 is held by elastic force in a protruding state at a locking position where it engages with the locking piece 53, and when the operating lever 26 in the locked state is unlocked. A surface 50B that contacts the locking piece 53 is formed as an inclined surface that generates a force in the direction of moving the protruding piece 50 to the non-locking position by contacting the locking piece 53.
As a result, when the locking operation is performed, the protruding piece 50 automatically moves to the non-latching position due to the contact between the protruding piece 50 and the locking piece 53, so that the user can check that the protruding piece 50 is locked to the locking piece 53. There is no need to constantly slide the slide operator 46 to prevent the user from doing so, which improves usability.

In the crescent lock 20 of this embodiment, when the locking operation prevention on/off mechanism 44 performs a vertical sliding operation (predetermined user operation) on the slide operator 46, the locking operation prevention on/off mechanism 44 prevents the protruding piece 50 is maintained in the unlocked position.
According to this configuration, the operation for turning off the locking operation prevention function of the locking operation prevention mechanism 40 is performed using the slide operator 46 for releasing the lock, improving the ease of operation, Also, the number of parts can be reduced.

In the crescent lock 20 of this embodiment, the protruding piece 50 moves to the non-locking position by retracting into the operating lever 26 provided thereon in response to a sliding operation on the slide operating element 46 .
As a result, while the locking operation prevention on/off mechanism 44 maintains the protruding piece 50 moved to the unlocked position, the protruding piece 50 is housed in the operating lever 26, and the protruding piece 50 is This prevents contact with and damage to the product, increasing durability.

In the crescent lock 20 of this embodiment, the locking portion 52 that locks on the protrusion piece 50 is the convex locking piece 53, so that the locking portion 52 can be configured easily.

In the crescent lock 20 of this 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, it engages with the crescent receiver 12. An empty hook prevention mechanism 32 is provided to prevent rotation of the operating lever 26 when the operating lever 26 is not aligned. Thereby, it is possible to prevent the glass shoji 2, 4 from being locked in an incompletely closed state.

Note 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 spirit of the present invention.

In the above-described embodiment, a configuration was exemplified in which the projecting piece 50 is recessed into the operating lever 26 as the slide operating element 46 is slid, thereby moving to the non-latching position. However, the present invention is not limited to this, and as shown in FIG. 9, the protruding piece 50 moves inside the back surface 26R of the operating lever 26 in the extending direction of the operating lever 26 as the slide operating element 46 slides. It may be configured to slide to DK and move to a non-locking position where it does not lock with the locking piece 53. 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. Furthermore, a lock groove 170, which is a lateral groove, is provided at the end 160T of the slide groove 160 to restrict 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 in the left direction DL at the end 160T of the slide groove 160, and causes the protruding piece 50 and the locking piece to enter the lock groove 170. 53 is always in a released state (the function of the locking operation prevention mechanism 40 is off).

In the embodiment described above, the configuration in which the protruding piece 50 is provided on the operating 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. The portion 52 may be provided on the operating lever 26.

In the embodiment described above, the locking portion 52 includes the locking piece 53; however, the present invention is not limited to this, and the projection piece 50 may be locked using the surface of the operating lever 26 or the mounting base 22 as the locking portion 52. Good too. Specifically, as shown in FIGS. 10(A) and 10(B), a substantially rectangular parallelepiped-shaped projecting piece 250 that projects toward the operating lever 26 is provided on the front surface 22F of the mounting base 22. 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 configuration shown in FIGS. 10(A) and 10(B), a recess 280 is formed on the back surface 26R of the operating lever 26, through which the protruding piece 250 is passed when the operating lever 26 is rotated. A slide operator 246 that slides the protruding piece 50 to a position where it enters the recess 280 is provided on the side surface 22S of the mounting base 22, and an end 260T of the slide groove 260 through which the slide operator 246 slides. A lock groove 270 that restricts the sliding movement of the slide operator 246 is formed in the.
Therefore, when the user performs an operation (predetermined user operation) to move the slide operator 246 to the lock groove 270 at the end 260T of the slide groove 260, the engagement between the protrusion piece 250 and the locking portion is always maintained. It becomes a released state (the function of the locking operation prevention mechanism 40 is turned off).

In the embodiment described above, the locking portion 52 includes a convex locking piece 53, and FIGS. 22 is used as the locking portion 52. However, the locking portion 52 is not limited to these configurations, and may include a concave hole into which the protruding piece 50 is inserted and locks the protruding piece 50. Further, in this configuration, a closing mechanism that closes the hole of the locking portion 52 and an opening/closing operator for opening and closing the hole by the closing mechanism are connected as the locking operation prevention on/off mechanism 44. It may be provided on the operating lever 26 provided with the stop portion 52 or on the mounting base 22. According to this configuration, when the user operates the opening/closing operator to close the hole of the locking part 52, the protruding piece 50 is not locked to the locking part 52, and the projection piece 50 is not locked by the locking part 52. The lock can be turned off at any time.

In the embodiments described above, directions such as horizontal, vertical, left/right, up and down, various numerical values, and shapes are referred to as ranges that have the same effect as those directions, numerical values, and shapes (so-called equal range).

1 Sliding sash 2 Glass shoji (indoor shoji)
4 Glass shoji (outdoor shoji)
8 Frame 8D Combination frame 12 Crescent receiver (receiver)
20 Crescent lock 22 Mounting base 24 Crescent 26 Operation lever 27 Crescent shaft 32 Empty locking prevention mechanism 34 Closing prevention mechanism 40 Locking operation prevention mechanism 44 Locking operation prevention on/off mechanism 46, 246 Slide operator 52 Locking part 53 Locking piece 54 Spring (elastic body)
60, 160, 260 Slide groove 70, 170, 270 Lock groove 260 Slide groove

Claims (6)

A mounting base that is fixed to the indoor shoji,
a crescent rotatably provided on the mounting base;
an operating lever operated to rotate the crescent, and the crescent is rotated to engage and disengage from a receiver provided on the outdoor shoji, thereby locking the indoor shoji and the outdoor shoji. , and in the crescent lock to be unlocked,
a locking operation prevention mechanism that prevents a locking operation on the operating lever in an unlocked state;
a locking operation prevention on/off mechanism that turns on/off a locking operation prevention function by the locking operation prevention mechanism according to a user operation;
Equipped with
The locking operation prevention mechanism is
A locking portion provided on one of the operating lever or the mounting base, and a locking portion provided on the other of the operating lever or the mounting base, which is locked to the locking portion in the unlocked state, and A protruding piece that is movable to a non-latching position where it does not engage with the locking part, and a lock release operator that is operated to move the protruding piece to the non-latching position and release the lock. , while the lock release operator is operated, the protruding piece maintains a state moved to the unlocked position.
A crescent tablet characterized by: The protruding piece is
is held by the elastic force of an elastic body in a protruding state at a locking position where it engages with the locking portion;
A portion that contacts the locking portion when an unlocking operation is performed on the operating lever in the locked state is inclined such that a force is generated in a direction to move the protruding piece to the non-locking position through contact with the locking portion. formed on the surface,
The crescent tablet according to claim 1 , characterized in that: The locking operation prevention on/off mechanism is
A claim characterized in that when a predetermined user operation is performed on the lock release operator, the projecting piece maintains a state moved to the non-locking position even after the predetermined user operation. Crescent tablet according to 1 or 2 . The protruding piece is configured to operate when the unlocking operator is operated.
By immersing itself into the operating lever provided thereon or the mounting base, or by sliding within the plane of the operating lever provided thereon or the mounting base, the device enters the unlocked position. Moving,
The crescent tablet according to any one of claims 1 to 3 , characterized in that: 5. The crescent lock according to claim 1 , wherein the locking portion has a convex locking piece that locks the projecting piece. Preventing rotation of the operating lever when at least one of the indoor shoji and the outdoor shoji is not in the closed position and does not engage the receiver when the crescent rotates. The crescent lock according to any one of claims 1 to 5 , further comprising an empty locking prevention mechanism.

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