JP2013083054A - Crescent lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crescent lock capable of improving operability by allowing locking and unlocking of an auxiliary lock through one action accompanying a turning operation of a handle, and realizing an idle locking preventing function and an auxiliary lock function with a relatively simple configuration.SOLUTION: Both of a first locking part 6 which is a locking direction turning regulation part and a second locking part 7 which is an unlocking direction turning regulation part are provided on a side face near a turning member on the side of a pedestal 3, idle locking is prevented by locking a first locking piece 11A on a turning member side to the first locking part 6, and an auxiliary lock is locked by locking a second locking piece 12A on the turning member side to the second locking part 7. When an operation lever part 12B is held so as to bring it close to a handle 2 accompanying a turning operation in an unlocking direction of the handle 2 when performing unlocking from a locked state of a crescent lock A, the auxiliary lock is released, and the handle 2 is made turnable in the unlocking direction.

Description

  The present invention relates to a crescent lock having an emptying prevention function and an auxiliary lock function.

A pedestal that supports the crescent (hanging part) so that it can be pivoted in a sash with a pulling, pulling or pulling (drawing) method, or a raising or lowering method of raising or lowering one side. Crescent locks are widely used, which are attached to the crucible and the crescent receiver (receiving part) is attached to the shoji screen.
In such a crescent lock, an anti-hung function that prevents the crescent from hanging when the inner and outer shojis are not completely closed to improve crime prevention and prevent deformation and damage of the crescent, etc., and Some have an auxiliary lock function that prevents the handle from rotating in the unlocking direction in the locked state and improves crime prevention (see, for example, Patent Documents 1 and 2).

The mechanism (hereinafter referred to as “empty hanging prevention mechanism”) for realizing the crescent lock emptying prevention function of Patent Document 1 is a handle for the crescent lock in a state where the inner and outer shojis are not completely closed. Rotate in the locking direction, the trigger part of the rotation restricting mechanism inside the pedestal protrudes from the pedestal to the outdoor side with a larger protruding amount than when the inner and outer shojis are completely closed. The rotation of is locked.
The crescent lock emptying prevention mechanism disclosed in Patent Document 2 is a handle provided on the rotating side including the crescent when the handle of the crescent lock is rotated in the locking direction in a state where the inner and outer shojis are not completely closed. The rotation of the handle is locked by a rotation prevention mechanism that prevents the rotation from the unlocked position to the locking direction by a predetermined angle or more.

The mechanism for realizing the auxiliary lock function of the crescent lock disclosed in Patent Document 1 (hereinafter referred to as “auxiliary lock mechanism”) includes an operation portion exposed to the outer surface of the pedestal while the crescent is engaged with the crescent receiver. When the sliding operation is performed in the locking direction, the rotation preventing portion comes into contact with the rotating body that rotates as the handle provided in the pedestal rotates and the rotation of the rotating body is prevented, so that the rotation of the handle is locked.
In the crescent lock auxiliary lock mechanism disclosed in Patent Document 2, when the operation portion (knob) exposed on the outer surface of the pedestal is slid in the locking direction while the crescent is engaged with the crescent receiver, the handle provided in the pedestal is rotated. Since the engagement piece of the lock member is engaged with the engagement groove of the end plate that rotates with the movement and the rotation of the end plate is prevented, the rotation of the handle is locked.
In addition, it is not a sash of a pulling type and a raising and lowering type, but a window that can open and close a shoji built in a window frame such as a vertical sliding window, a horizontal sliding window, a single-sided window, or a protruding window in the indoor and outdoor directions. There is a locking device configured so that the operation of the operating handle and the operation of bringing the lock device into the locked state or the unlocked state can be performed with one action (see, for example, Patent Document 3).

JP 2008-231811 A JP 2005-105815 A JP 2010-1559587 A

In a crescent lock having an anti-hanging function and an auxiliary lock function as described in Patent Documents 1 and 2, when locking, the handle is rotated to lock the crescent lock, and then the operation unit is slid. Two other operations (two actions) to lock the auxiliary lock are necessary, so you may forget to perform the slide operation of the operation section that needs to be performed after locking by turning the handle. In some cases, security is reduced.
In addition, when unlocking, another two operations (two-action) for unlocking the crescent lock by rotating the handle after sliding the operation part to unlock the auxiliary lock are performed. Because it is necessary, the operability is not good.
Further, in the crescent lock emptying prevention mechanism disclosed in Patent Document 1, a mechanism for causing the trigger portion to protrude and retract from the pedestal is relatively complicated. In the auxiliary lock mechanisms disclosed in Patent Documents 1 and 2, the mechanism is provided on the outer surface of the pedestal. A mechanism for preventing the rotation of the rotating body (end plate) by sliding the exposed operation portion in the locking direction is relatively complicated.

  Therefore, in view of the above-described situation, the present invention intends to solve the problem that the locking and unlocking of the auxiliary lock can be performed with a single action accompanying the turning operation of the handle, and the anti-hanging function and the auxiliary lock function are relatively provided. It is in providing a crescent lock that can be realized with a simple configuration.

  When the inventor of the present application constructs a crescent lock having the above-described hung preventing function and auxiliary lock function, the inner and outer obstacles are normally closed using the rotation of the handle as in Patent Document 2. Using a configuration that realizes the function of preventing emptying by detecting whether or not it is in a relatively simple manner, and operating the handle and the locking device in a locked state or unlocked state with one action as in Patent Document 3. The present invention has been completed with the idea of using a structure of a locking device that performs the above operation and combining these at a reasonable and low cost.

  That is, the crescent lock according to the present invention can be rotated around the axis of the rotation support shaft in the direction of finding the crescent and the handle as the rotation member in the pulling type or raising and lowering type sash in order to solve the problem. A crescent lock with an anti-empty function and an auxiliary lock function, wherein a pedestal that supports the crescent is attached to a heel of a shoji and a crescent receptacle that engages the crescent is attached to a heel of a shoji The mechanism for realizing the emptying prevention function is such that the first locking piece is formed at one end and the operated piece is formed at the other end, and the intermediate portion of the mechanism is the axis of the first swing support shaft in the direction of finding. Locking direction by locking the first swinging member supported by the rotating member so as to be swingable around and the first locking piece provided on the side surface close to the rotating member on the pedestal side Locking direction rotation regulation to regulate the rotation of And a first elastic urging means provided on the rotating member side for urging so that the first locking piece is locked to the locking direction rotation restricting portion. In the state where the first locking piece is locked to the locking direction rotation restricting portion, the rotation of the handle in the locking direction beyond a predetermined angle is restricted, and the inner and outer obstacles are completely closed. When the handle is rotated in the locking direction, the operated piece of the first swing member is pressed against the crescent receiver, and the first swing member is applied to the biasing force of the first elastic biasing means. The mechanism for realizing the auxiliary lock function is provided at one end portion of the second engagement mechanism while the engagement state between the first engagement piece and the locking direction rotation restricting portion is released by swinging against the movement. An operating lever portion is formed on the other end of the stopper piece attached to the handle. A second swinging member supported by the handle so as to be swingable about the axis of the swinging support shaft is engaged with the second locking piece provided on the side surface of the pedestal side close to the rotating member. The unlocking direction rotation restricting portion that stops and restricts the rotation in the unlocking direction, and the second locking piece provided on the rotating member side is engaged with the unlocking direction rotation restricting portion. And a second elastic urging means that urges the state so as to maintain the state. In the locked state in which the crescent is engaged with the crescent receiver, the second locking piece is engaged with the unlocking direction rotation restricting portion. When the operation lever portion is gripped so as to be close to the handle, the second swinging member is biased by the second elastic biasing means. The lock state between the second locking piece and the unlocking direction rotation restricting portion is released by swinging against the force. It is characterized by that.

According to such a configuration, in the pulling type or raising / lowering type sash, the operated piece of the first swinging member is operated even if the handle is rotated in a state where the inner and outer obstacles are not completely closed. Since the state in which the first locking piece is locked to the locking direction rotation restricting portion is held by the first elastic biasing means, the handle can be rotated in the locking direction by a predetermined angle or more. Since this is not possible, emptying is prevented.
In addition, when the handle is rotated in the locking direction with the inner and outer obstacles completely closed, the operated piece of the first swinging member is pressed against the crescent receiver, and the first swinging member is Since the locked state between the first locking piece and the locking direction rotation restricting portion is released by swinging against the biasing force of the one elastic biasing means, the locked state where the crescent is engaged with the crescent receiver Can be.
In this locked state, since the state in which the second locking piece of the second swinging member is engaged with the unlocking direction rotation restricting portion is held by the second elastic urging means, the unlocking direction of the handle Rotation to is restricted.
In addition, when the operation lever portion is held close to the handle in conjunction with the turning operation of the handle when the crescent lock is unlocked, the second swinging member resists the biasing force of the second elastic biasing means. Since the swinging state releases the locking state between the second locking piece and the unlocking direction rotation restricting portion, the handle can be rotated in the unlocking direction.
Therefore, the locking and unlocking of the auxiliary lock can be performed with one action accompanying the turning operation of the handle.
Furthermore, since both the locking direction rotation restricting portion and the unlocking direction rotation restricting portion are provided on the side surface close to the rotating member on the pedestal side, a mechanism for restricting the rotation of the handle is provided in the pedestal. Compared with the structure to provide, the structure by the side of the base which latches the locking piece of the 1st rocking | fluctuation member provided in the rotation member side and the 2nd rocking | fluctuation member becomes simple.

Here, it is preferable that the locking direction rotation restricting portion and the unlocking direction rotation restricting portion are integrally formed on a metal plate member, and the metal plate member is attached to the pedestal.
According to such a configuration, the side surface close to the pedestal side turning member that the first locking piece of the first swinging member on the turning member side or the second locking piece of the second swinging member is locked. The locking direction rotation restricting portion and the unlocking direction rotation restricting portion provided in the metal plate member are formed on the metal plate member, so that the strength required for the locking direction rotation restricting portion and the unlocking direction rotation restricting portion is extended over a long period of time. The metal plate member can be manufactured by sheet metal pressing or the like while ensuring the reliability easily, and the cost can be reduced.
In addition, by using a metal plate member that is integrally formed with the locking direction rotation restricting portion and the unlocking direction rotation restricting portion attached to the pedestal, the pedestal can be manufactured by synthetic resin injection molding or the like to reduce costs. Can be achieved.

  As described above, according to the crescent lock according to the present invention, the operation lever portion is provided in conjunction with the turning operation of the handle when unlocking the crescent lock in the locked state while having the emptying prevention function and the auxiliary lock function. If the handle is held close to the handle, the auxiliary lock is released and the handle can be rotated in the unlocking direction, so the auxiliary lock can be unlocked and unlocked with one action associated with the rotation of the handle. In addition to improving the performance, both the locking direction rotation restricting portion and the unlocking direction rotation restricting portion are provided on the side surface close to the rotating member on the pedestal side. Compared to the configuration provided inside, the configuration on the pedestal side for locking the locking pieces of the first swinging member and the second swinging member provided on the rotating member side is simplified, so the cost is reduced. A marked effect of bets can be.

It is a perspective view which shows the sliding sash to which the crescent lock which concerns on embodiment of this invention was attached, and shows the locked state where the crescent was engaged with the crescent receptacle in the state where the inner and outer shojis were completely closed ing. Similarly, it is a perspective view, and shows a state where the crescent lock is unlocked and the inner and outer shojis are opened. It is a perspective view which shows the external appearance of the Crescent lock which concerns on embodiment of this invention, (a) is the use state which supported the rotation member so that rotation was possible by the base, (b) was a base, rotation member, Is shown in a separated state. It is a perspective view which shows the attachment structure to the base of a rotation member. It is a disassembled perspective view of the Crescent tablet concerning an embodiment of the invention. It is a schematic front view for operation | movement description of an empty | hanging prevention mechanism, and has shown the state which the 1st locking piece of the 1st rocking | fluctuation member locked to the locking direction rotation control part. Similarly, it is a schematic front view, and shows a state where the operated piece of the first swing member is pressed against the crescent receiver and the locked state between the first locking piece and the locking direction rotation restricting portion is released. ing. Similarly, it is a schematic front view and shows a state where the handle is further rotated in the locking direction. It is a schematic front view for operation | movement description of an auxiliary | assistant lock mechanism, (a) is the locked state which the crescent engaged with the crescent receptacle, and the state which the 2nd locking piece latched to the unlocking direction rotation control part (b) ) Shows a state in which the operation lever portion is held close to the handle and the engagement state between the second engagement piece and the unlocking direction rotation restricting portion is released.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste.
In this specification, the direction from the room to the outside is the front, the left and right are the front, and the crescent lock is also attached to the sumoscope summon for the components that make up the crescent lock. The definition of the direction is used based on the state.
Moreover, the figure which looked at the crescent lock (a pedestal, a rotation member, etc.) attached to the summon bowl of a shoji from the direction (left side) is made into a front view.

The crescent lock of the present invention is used for a sash of a pulling type, a single pulling or a double pulling (drawing), or a single lifting / lowering / raising / lowering type sash. As shown in the perspective view of the sliding sash S to which the Crescent lock A according to the form is attached, the pedestal 3 of the Crescent lock A is attached to the summoning ridge 16 of the inner shoji 14, and the Crescent ( A crescent receiver (receiving part) 10 (for example, see FIG. 7) that engages with the hanging part) 1 is attached to the summoning rod 17 of the external shoji 15, and in the locked state shown in FIG. In the unlocked state shown in FIG. 2, the handle 2 is in a position rotated to below the pedestal 3.
In addition, in the sliding sash S shown in FIG.1 and FIG.2, the frame body which supports the inner sward 14 and the outer sward 15 is abbreviate | omitted.

As shown in the perspective view of FIG. 3A, the pedestal 3 is attached to the pedestal 3, and the pedestal 3 uses the upper and lower mounting holes 3C, 3C to make the summon 16 for the inner shoddle 14. The crescent 1 and the handle 2 that are the rotation members B are attached to the left side surface of the rotation shaft B by the pedestal 3, and the rotation support shaft C in the finding direction (left-right direction) shown in the perspective view of FIG. 4 and the exploded perspective view of FIG. Is supported so as to be rotatable around the axis of the shaft.
As shown in FIG. 5, the first swing support shaft C <b> 1 in the finding direction (left-right direction) is fitted into the shaft support hole 2 </ b> B on the proximal end side of the handle 2, and the first swing support projecting from the right side surface of the handle 2. A coil portion of a torsion coil spring 11D, which is a first elastic urging means, is externally fitted to the shaft C1, and further, a first locking piece 11A is formed at one end and an operated piece 12B is formed at the other end. The through hole 11C in the middle part of the member 11 and the shaft support hole 1B of the crescent 1 are fitted.

In this state, the end of the crescent 1 abuts on the step on the right side of the handle 2 and the notch 1C of the through hole 1A of the crescent 1 engages with the protruding piece 2D protruding from the right side of the handle 2. 1 is integrated with the handle 2, and the first swing member 11 can swing around the axis of the first swing support shaft C1.
Further, one leg portion of the torsion coil spring 11D enters the support groove 2E formed on the right side surface of the handle 2, and the other leg portion of the torsion coil spring 11D is located inside the operated piece 11B of the first swing member 11. Because of the extension, the first swinging member 11 has the distal end of the first locking piece 11A approaching the rotational support C and the distal end of the operated piece 12B is the rotational support C by the restoring force of the torsion coil spring 11D. It is energized in the direction away from.

As shown in FIG. 5, the metal plate member 5 on which a first locking portion 6 that is a locking direction rotation restricting portion and a second locking portion 7 that is an unlocking direction rotation restricting portion to be described later is formed. The notch 5C of the through hole 5A engages with the protruding piece 3D protruding from the left side surface of the pedestal 3 and the pin 13 is fitted into the shaft support hole 5B and the shaft support hole 3B. Mounted on the near side (left side).
Then, the rotation support shaft C is inserted into the through hole 2A of the handle 2, the through hole 1A of the crescent 1, the through hole 5A of the metal plate member 5, and the through hole 3A of the base 3, and as shown in FIG. When the fixing screw 9 is screwed into the screw hole E of the rotation support shaft C in a state where the rectangular hole 4A of the angle stopper 4 is externally fitted to the rectangular end D of the moving support shaft C, the crescent 1, the handle 2, etc. The rotating member B is connected to the base 3. The method of connecting the fixing member B to the pedestal 3 may be performed by caulking or the like without using the fixing screw 9.

In this state, as described above, the rotating member B is supported by the pedestal 3 so as to be rotatable around the axis of the rotating support shaft C in the finding direction (left-right direction). Since the head engages with an engagement portion (not shown) in the handle 2, the head rotates together with the rotation member B.
Note that the metal rotation support shaft C may be integrated with the synthetic resin handle 2 by insert molding.
Here, as shown in FIG. 4, since the angle restricting piece 4B protruding from the angle stopper 4 is stopped by the stoppers 3F and 3G provided in the base 3, the handle 2 is as shown in FIG. The handle 2 is rotated within a range of about 180 ° between a locked state where the handle 2 is positioned above the pedestal 3 and an unlocked state where the handle 2 is positioned below the pedestal 3 as shown in FIG.
Further, since the end of the tension coil spring 8 is latched by the spring hook 4C protruding from the angle stopper 4 and the spring hook 3E provided in the pedestal 3, the handle 2 is shown in FIG. 2 is elastically biased in the locking direction at a position slightly rotated in the unlocking direction from the locked state, and in a position rotated slightly in the indoor direction from the unlocked state in FIG. 2 to the unlocking direction. Elastically biased.

As shown in the exploded perspective view of FIG. 5 and the schematic front view of FIG. 9, the second swinging member 12 has an operation lever portion in which a second locking piece 12 </ b> A is attached to the handle 2 at one end portion. 12B is formed, and the second swing support shaft C2 in the finding direction (left-right direction) is fitted into the shaft support hole 2C on the right surface of the handle 2 and the shaft support hole 12C of the second swing member 12, thereby making the second swing The member 12 is supported by the handle 2 so as to be swingable around the axis of the second swing support shaft C2.
The operation lever portion 12B is located on the front side of the handle 2 in the locked state of FIGS. 1 and 9 and on the rear side of the handle 2 in the unlocked state of FIG.
Here, in the locked state of FIG. 9, the second swing support shaft C2 is located behind the second locking piece 12A, on the base end side (downward) of the operation lever portion 12B, and above the rotation support shaft C. The vertical compression coil spring 12D, which is the second elastic urging means, is mounted on the rear side of the second swing support shaft C2, so that the second force is restored by the restoring force of the compression coil spring 12D. The locking piece 12A is biased downward and the operation lever portion 12B is biased forward. Instead of the compression coil spring 12D, a compression coil spring in the front-rear direction (expected direction) in the locked state of FIG. 9 may be mounted between the operation lever portion 12B and the handle 2 as the second elastic biasing means. .

Next, the operation of the emptying prevention mechanism will be described.
As shown in the perspective view of FIG. 3B, the exploded perspective view of FIG. 5 and the schematic front view of FIG. 6, the metal plate member 5 (side surface close to the rotation member B on the base 3 side) A first locking portion 6 that is a locking direction rotation restricting portion that locks the first locking piece 11A and restricts the rotation in the locking direction is formed below the support shaft C. Is constituted by the first rocking member 11, the first locking portion 6 and the torsion coil spring 11D which is the first elastic biasing means.

As shown in FIG. 2, in the unlocked state of the crescent lock A and the inner and outer children 14 and 15 are opened (not completely closed), the handle 2 is rotated in the locking direction as shown in FIG. The operated piece 11B of the first oscillating member 11 is not operated even if it is moved, and the state where the first locking piece 11A is locked to the first locking portion 6 by the torsion coil spring 11D is maintained. Therefore, since the handle 2 cannot be rotated in the locking direction by a predetermined angle or more, emptying is prevented.
On the other hand, in the state where the inner and outer children 14 and 15 are completely closed, as shown in the schematic front view of FIG. 7, when the handle 2 is rotated in the locking direction, the first swing member 11 is operated. The piece 11B contacts and is pressed against the crescent receiver 10, and the first swing member 11 swings against the urging force of the torsion coil spring 11D, and the first locking piece 11A and the first locking portion 6 Since the locked state is released, the handle 2 can be rotated in the locking direction from the intermediate position shown in the schematic front view of FIG. 8 to the two-dot chain line of FIG. 7 and the locked state of FIG.
As shown in FIG. 7, the handle 2 is rotated in the locking direction in a state where the locked state between the first locking piece 11 </ b> A and the first locking portion 6 is released, and the operated piece 11 </ b> B becomes the crescent receiver 10. Even if the first locking piece 11A is not pressed by the first locking piece 11A along the outer peripheral surface 5D of the metal plate member 5 shown in FIGS. 3B and 8, the first locking piece 11A rotates the locking direction. The dynamic operation is not hindered.

Next, the operation of the auxiliary lock mechanism will be described.
As shown in the perspective view of FIG. 3B, the exploded perspective view of FIG. 5 and the schematic front view of FIG. 9, the metal plate member 5 (side surface close to the rotation member B on the base 3 side) A second locking portion 7, which is an unlocking direction rotation restricting portion that locks the second locking piece 12 </ b> A and restricts rotation in the unlocking direction, is formed diagonally forward and upward of the support shaft C. The auxiliary lock mechanism includes a second swing member 12, a second locking portion 7, and a compression coil spring 12D that is a second elastic biasing means.

As described above, the handle 2 is rotated in the locking direction with the inner and outer children 14 and 15 completely closed, and the crescent 1 is engaged with the crescent receiver 10 as shown in FIGS. In the locked state, the state where the second locking piece 12A of the second swinging member 12 is engaged with the second locking portion 7 is held by the compression coil spring 12D. Since the movement is restricted, the auxiliary lock can be locked with one action of rotating the handle 2 in the locking direction.
In such a locked state, when the operation lever portion 12B is gripped so as to approach the handle 2 as indicated by an arrow in FIG. 9A, the second swing member 12 swings against the urging force of the compression coil spring 12D. As shown in FIG. 9B, the locked state between the second locking piece and the second locking portion 7 is released, so that the handle 2 can be rotated in the unlocking direction.
Thus, since the auxiliary lock is unlocked by holding the operation lever portion 12B close to the handle 2 in conjunction with the operation of rotating the handle 2 in the unlocking direction, the auxiliary lock is unlocked. Can be performed with one action accompanying the rotation operation in the unlocking direction.

According to the configuration of the crescent lock A according to the embodiment of the present invention as described above, the first locking portion 6 that is the locking direction rotation restricting portion and the second locking portion that is the unlocking direction rotation restricting portion. 7 is provided on the side surface (metal plate member 5) close to the rotating member B on the pedestal 3 side, so that a mechanism for restricting the rotation of the handle 2 is provided in the pedestal 3. The configuration on the side of the base 3 for locking the first locking piece 11A of the first swinging member 11 and the second locking piece 12A of the second swinging member 12 provided on the rotating member B side is simplified.
Moreover, the 1st latching | locking part 6 and the 2nd latching | locking part 7 are integrally formed in the metal plate member 5, and the 1st latching | locking part 6 and the 2nd latching are carried out by attaching the metal plate member 5 to the base 3. While easily securing the strength and long-term reliability required for the portion 7, the metal plate member 5 can be manufactured by sheet metal pressing or the like, and the cost can be reduced, and the base 3 is injection-molded with a synthetic resin. The cost can be reduced by manufacturing.

S sliding sash A crescent lock B rotating member C rotating support shaft C1 first swing support shaft C2 second swing support shaft D rectangular end E screw hole 1 crescent (hanging portion)
1A Through hole 1B Shaft support hole 1C Notch 2 Handle 2A Through hole 2B, 2C Shaft support hole 2D Projection piece 2E Support groove 3 Base 3A Through hole 3B Shaft support hole 3C Mounting hole 3D Projection piece 3E Spring hook 3F, 3G Stop Part 4 Angle stopper 4A Square hole 4B Angle restricting piece 4C Spring hook 5 Metal plate member 5A Through hole 5B Shaft support hole 5C Notch part 5D Outer peripheral surface 6 First locking part (locking direction rotation restricting part)
7 Second locking part (unlocking direction rotation restricting part)
8 Tension coil spring 9 Fixing screw 10 Crescent receiver (receiving part)
11 First swing member 11A First locking piece (one end)
11B Operated piece (other end)
11C through hole (middle part)
11D torsion coil spring (first elastic biasing means)
12 2nd rocking | fluctuation member 12A 2nd locking piece (one end part)
12B Operation lever (other end)
12C shaft support hole 12D compression coil spring (second elastic biasing means)
13 Pin 14 Inner shoji 15 Outside shoji 16, 17

Claims (2)

In a pulling type or raising / lowering type sash, a crescent that is a rotating member and a pedestal that supports the handle so that it can rotate around the axis of the rotating support shaft in the direction of finding is attached to the sumoscope summoning cage. A crescent lock having an anti-hanging function and an auxiliary lock function, wherein the engaging crescent receiver is attached to a sumo candy for a shoji,
The mechanism for realizing the emptying preventing function is that the first locking piece is formed at one end and the operated piece is formed at the other end, and the middle part is around the axis of the first swing support shaft in the direction of finding. The first swinging member supported by the pivoting member so as to be pivotable to the side and the first locking piece provided on the side surface near the pivoting member on the pedestal side to latch the locking direction. A locking direction rotation restricting portion for restricting the rotation, and a biasing so as to hold the state where the first locking piece provided on the rotating member side is locked to the locking direction rotation restricting portion. A first elastic biasing means, and in a state where the first locking piece is locked to the locking direction rotation restricting portion, the rotation of the handle in a locking direction over a predetermined angle is restricted, and the inner When the handle is rotated in the locking direction with the shoji and outer shoji completely closed, the operated piece of the first swing member is The first rocking member is rocked against the urging force of the first elastic urging means and abuts against the crescent receiver, and the first locking piece and the locking direction rotation restricting portion are While the locked state of is released,
The mechanism for realizing the auxiliary lock function has a second locking piece at one end and an operation lever portion attached to the handle at the other end. The second swinging member supported by the handle so as to be swingable around the core, and the unlocking direction by locking the second locking piece provided on the side surface of the pedestal near the rotating member. The unlocking direction rotation restricting portion for restricting the rotation of the second member and the second locking piece provided on the rotating member side so as to be held in the unlocking direction rotation restricting portion. In the locked state in which the crescent is engaged with the crescent receiver, the second locking piece is locked to the unlocking direction rotation restricting portion. Rotation of the handle in the unlocking direction is restricted, and the operation lever portion is brought closer to the handle When held, the second swinging member swings against the biasing force of the second elastic biasing means, and the locked state between the second locking piece and the unlocking direction rotation restricting portion is released. Crescent tablet characterized by being made. The crescent lock according to claim 1, wherein the locking direction rotation restricting portion and the unlocking direction rotation restricting portion are integrally formed on a metal plate member, and the metal plate member is attached to the pedestal.

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