JPH0712588Y2 - Heart lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a heart lock that can regulate the opening angle of a door.

[Conventional technology]

The applicant of the present invention has made various proposals for this type of precautionary tablet. As an example, an application was filed as shown in Japanese Utility Model Application No. 63-103728 (Japanese Utility Model Publication No. 6-36206). This is because one end of a guard rod is pivotally attached to the front side of the lock case by means of a pivot, and the dead hub inside the lock case is rotated to activate an operating mechanism such as a lever inside the lock case. And the locking portion formed on the free end side of the guard rod is projected and retracted. Further, in this precautionary lock, the locking portion of the precautionary rod is surely engaged with the receiving hole of the receiving member of the other side, and the locking state of the precautionary rod with the engaging portion being engaged with the receiving hole. When opening the door with the precautionary mechanism, the pivoting part of the precautionary rod should be locked or unlocked so that it does not hit the front surface of the lock case and obstruct the opening of the door. Even in this case, the lock case is projected from the front front surface.

[Problems to be solved by the device]

However, according to the above-mentioned conventional example, as described above, the pivoting portion of the precaution ring is projected from the front front surface of the lock case in both cases of locking and unlocking the precaution ring. , (A) When using it by attaching it to the door,
Alternatively, when the product of this precautionary tablet is being transported, the pivotal attachment portion of the precautionary rod may accidentally hit another object, and the pivotal attachment portion of the precautionary rod, the operating mechanism such as the lever, etc. It may be damaged or cause a malfunction.

(B) Further, since the pivotally attached portion of the precautionary rod projects from the front front surface of the lock case as described above, dust, foreign matter and the like enter through the gap near the pivotally attached portion.

(C) Further, as described above, since the pivotal portion of the precautionary rod projects from the front front surface of the lock case, there is a problem in that it is unsightly in appearance.

The present invention solves all of the above problems and has a high crime-preventing heartbeat, like the heartbeat (Japanese Utility Model Publication No. 6-3931) filed by the applicant of the present application on January 15, 1991. The purpose is to provide.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention rotatably pivotally attaches the other end of a guard rod having a locking portion at one end to the lock case via the lever lever, and operates inside the lock case. A concentric lock in which the locking lever of the guard rod is actuated by means of a mechanism so that the locking portion of the guard rod appears and retracts. A biasing spring is provided, and when unlocking the guard rod, the actuating mechanism against the biasing force of the spring pivots in the unlocking direction to rotate the guard lever and the guard rod integrally in the unlocking direction. The locking part of the guard rod is retracted, and the front surface of the other end of the guard rod is made to be the same as or retracted from the front surface of the front of the lock case, and the actuating mechanism must be rotated in the locking direction when locking the guard rod. With the biasing force of the spring, The locking rod (21) of the guard rod is projected by rotating the guard rod integrally in the locking direction, while a protrusion is formed on the guard rod or the front side. The precautionary rod is projected outward from the front surface of the front through this, and the precautionary rod is rotated to open the door.

The shape, the number, the mounting position, etc. of the springs for urging the locking portion of the guard rod to protrude are arbitrary. Further, it is preferable that the projection formed on the back side of the caution ring or the front side of the front is made of an elastic material such as a synthetic resin that does not damage the front side of the front side or the back side of the caution ring. is there.

It is also possible to provide a stopper in the lock case for preventing the retreat of the guard rod when locking the guard rod. Further, it is preferable to provide a stopper pin so that the stopper will not be retracted in a state in which it is prevented from retracting.

As the actuating mechanism, a hub rotated by an operating shaft of an operating member such as a cylinder or thumb turn may be used, and the watch lever may be directly actuated by the hub.
In this case, it can be implemented as a precautionary lock having only a precautionary mechanism, but a locking rod different from the precautionary rod such as dead bolts or latch bolts in the lock case without linking with the hub (operating mechanism). It can also be decorated.

In addition, as the operating mechanism, one or more levers are used to interlock with the vigilance lever and a dead hub is interlocked with one of the levers, and the vigilance rod and the dead bolt are rotated by rotating the dead hub. It is also possible to enable locking and unlocking.

It is also possible to provide a click spring on the watch lever and to return the watch lever in the open state to the posture when the door is closed by this click spring.

[Action]

 The operation of this device will be described below.

 When the watch ring is in the unlocked state (see FIGS. 1 and 4).

When the door is closed and the watch ring is in the unlocked state, the watch lever and the watch lever are pivoted in the unlocking direction by rotating the watch lever or the operating mechanism against the biasing force of the spring provided on the watch lever. The pivoting portion of the caution rod is the same or retracted from the front surface of the front of the lock case by being integrally rotated in the unlocking direction. Further, in the case of a protrusion formed on the back surface side of the caution ring, the protrusion is retracted from the front front surface and faces the lock case. Further, when the projection is provided on the front surface side, the projection is slightly projected from the front surface.

At this time, as shown in FIG. 1, a hub which is rotated by an operating portion of an operating member such as a cylinder or thumb turn is used as the operating mechanism, and the watch lever can be directly operated by this hub. it can. Alternatively, as shown in FIG. 4, one or more levers are used to interlock with the vigilance lever, and a dead hub is interlocked with one of the levers, so that the vigilance rod and the dead bolt are rotated by operating the dead hub. It is also possible to enable locking and unlocking.

A case where the guard rod is changed from the unlocked state to the locked state (see FIGS. 1 to 3, 4 and 5).

In order to change the above-mentioned guard rod from the unlocked state (Figs. 1 and 4) to the locked state (Figs. 2 and 5), the hub or dead hub which is the operating mechanism is operated by operating the operation member such as the thumb turn or the cylinder. By rotating the shaft in the locking direction (counterclockwise in the first direction, clockwise in FIG. 4), the guard lever and the guard rod are integrally rotated in the locking direction by the urging force of the spring, and the guard The locking portion of the rod is projected from the front surface of the front side and is engaged with the receiving hole of the receiving member so that the guard rod is locked.

At this time, as the door is opened, the guard rod is projected outward from the front surface of the front by the stroke of the protrusion through the protrusion, the guard rod is rotated to a certain range, and the door can be opened to the certain range. That is, the case in which the protrusion is formed on the back side surface of the guard rod will be described in detail. When the door is closed and unlocked, the protrusion faces the front front hole (see the guard rod (20) indicated by the solid line in FIG. 3). Refer to position a). When the door is opened in this state, the protrusion comes into contact with the rim of the front hole when the precaution ring is at the position b in FIG. When the door is further opened, the projection rides up on the front surface of the front, the guard rod is projected outward by the stroke of the protrusion, and the locking portion of the guard rod is pivoted about the pivot point of the guard rod. In the state where it is projected (advanced) from the lock case and securely engaged in the receiving hole of the receiving member of the other party, it moves to the upper position of the receiving hole as shown in position c in Fig. 3 and the door is opened further. Regulate.
When the door is closed, the locking portion of the vigilance rod moves downward in the receiving hole, and the projection has the opposite effect. When the projection is formed on the front surface of the front, the back surface of the caution rod rides on the front projection when the caution rod comes to the position b by opening the door from the position a in FIG. The caution function is achieved by increasing the amount of protrusion of the lifting guard rod and, by extension, the locking portion thereof.
Allow the door to open up to the position.

If the stopper is provided inside the lock case, it is possible to prevent the precautionary rod from retracting in the locked state.

When changing the locking rod from the locked state to the unlocked state (see FIGS. 2 and 1 and FIGS. 5 and 4).

With the door closed, the hub or dead hub, which is the operating mechanism, is moved in the opposite direction (clockwise in Fig. 2, counterclockwise in Fig. 5) by the operation shaft of the operation member such as thumb turn or cylinder (key). When rotated, the guard lever and the guard rod are integrally rotated in the unlocking direction against the biasing force of the spring, and the pivot portion of the guard rod is made to be the same or retracted from the front front surface of the lock case, and The locking part of the watch ring is retracted in the retracted direction, and the watch ring is unlocked. At this time,
From the state in which the protrusion is projected from the front surface of the front in the locked state of the guard rod, the guard rod is unlocked while performing the operation opposite to the above case.

If the guard rod is provided with a click spring and the click spring is used to return the guard rod in the closed state to the posture (vertical state) when the door is closed, the guard rod can be reliably returned to the original posture. .

A dead bolt is provided inside the lock case, and a dead hub for operating the dead bolt is interlocked with a lever which is an operating mechanism as described in claim (4) to lock and unlock not only the watch ring but also the dead bolt. Case (see FIGS. 4 and 5).

The dead bolt is locked and unlocked by rotating the dead hub with a thumb turn or cylinder. For example,
Explaining along with the embodiment, when the engaging portion of the dead hub is at the rearmost position as shown in FIG. 4, the locking portion of the precautionary rod is in the retracted state, and the dead bolt is retracted (retreated) in the lock case. It is in the unlocked state. When the engaging portion of the dead hub is rotated by a certain angle as shown in FIG. 5 to the neutral position, the locking portion of the guard ring is projected and locked, and the dead bolt is in the retracted position as described above. Further, when the engaging portion of the dead hub is applied to the engaged portion of the dead bolt as shown in FIG. 5 and further rotated in the clockwise direction, the dead bolt projects as shown by the chain double-dashed line in FIG. 5 and enters the receiving hole of the receiving member. While locked and brought into the fully locked state, the locking portion of the precautions bar remains in the locked state as described above.

To retract the dead bolt in the fully locked state to the unlocked state, the dead hub may be rotated counterclockwise.

The turning direction of the dead hub is shown as appropriate according to the embodiment drawings, but the turning direction is not limited to this.

[First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

(1) is a lock case provided on the door (a), (2) is a frame (b)
A receiving member attached to the box with screws (4), and (3) is a box receiver. In the longitudinal direction on the front side of the receiving member (2), a vertically long receiving hole (5) is formed as shown in FIG. The receiving hole (5) may have any suitable shape such as a straight line or a curved line.
In this embodiment, the lower part is a large diameter part (5a) to which a locking part (21) of a guard rod (20) described later can be engaged and disengaged, and the locking part (21) is engaged and the upper part is prevented from coming off. The small diameter part (5b).

On the front side of the lock case (1), a front (6) and a front back plate (7) are superposed and attached, and a guard ring (20).
The area in which is stored is the storage recess (8) of the recessed lock.

A guard rod (10) pivotally supported by a shaft (11) on the lock case (1) is provided in a space above the storage recess (8), and the guard lever (10) is provided. ) Is always rotated by a spring (12) in a direction (clockwise) in which the locking portion (21) of the guard rod (20) is projected, and a bent portion of the front portion of the guard rod (10). (10a) and the fixed end (the other end) of the guard rod (20) are pivotally attached to the front side (6) by a connecting member (13) such as a pin. For example, the head of the connecting member (13) may be inserted into the insertion hole (10b) of the watch lever (10).
The upper part of the guard rod (20) and the caulked part, and the pivoting part (22) of the guard rod (20) has a projection (25) described later.
By virtue of the above action, the guard ring (20) can be rotated about the connecting member (13) as a fulcrum in a state of protruding from the front surface (6a) of the front (6) of the lock case (1).

At the upper front part of the watch lever (10), a spring mounting part (10
e) is provided so that the shaft (11) described above is inserted into the shaft hole (10c) of the spring mounting portion (10e), and the spring (12) is mounted on the shaft (11). Further, the lower side portion of the watch lever (10) is an engagement receiving portion (for engaging and disengaging with an engaging portion (31a) of a hub (31) which is an operating mechanism (30) installed in the lock case (1). 10d).

The folding part (10a) at the front of the watch lever (10) and the watch lever (2
The connecting member (13) connected to the other end of (0) is wound with a click spring (19) for returning the precautionary rod (20) in the opened state to the closed posture (vertical posture).

As described above, the spring (12) is normally urged to rotate in the direction (clockwise direction) in which the locking portion (21) of the precaution ring (20) is projected. Utilization of the urging force of the spring (12) is controlled by a hub (31) which is an operating mechanism (30) via a watch lever (10). The operation shaft (32) of an operation member such as a cylinder or thumb turn is inserted into the hub hole (31b) of the hub (31), and the engaging portion (31a) of the operation shaft (32) is engaged with the guard rod (10). The watch lever (10) is directly operated by engaging or disengaging the lever (10d).

That is, when the watch rod (20) is locked, the operating mechanism (30)
By rotating the barrel hub (31) in the locking direction (counterclockwise in FIG. 1) by the operating shaft (32) of the operating member,
As shown in the figure, the guard lever (10) and the guard rod (20) are integrally rotated clockwise about the shaft (11) by the urging force of the spring (12), and the locking portion of the guard rod (20) is locked. Insert the (21) into the receiving hole (5) of the receiving member (2). As the door is opened while the engaging portion (21) is engaged with the receiving hole (5), the front surface of the pivotal attachment portion (22) of the watch rod (20) is located closer to the front surface (6a) of the front (6). The device is designed to project so that the door can be opened within a predetermined range. That is, the precautionary rod (20)
A protrusion (25) is formed on the back side of the guard rod (20), and when the guard rod (20) is locked, the protrusion (25) rides on the front face (6a) of the front (6) as the door is opened, and the guard rod (20) The door is configured to rotate to open.

In order to change the locked state of FIG. 2 to the unlocked state of FIG. 1, the hub (31) is rotated in the unlocking direction (clockwise in FIG. 2) by the operation shaft (32) of the operation member. Then, with the engagement portion (31a) of the hub (31) engaged with the engagement receiving portion (10d) of the guard lever (10), the guard rod against the biasing force of the spring (12). The lever (10) and the guard rod (20) are integrally rotated in the unlocking direction (counterclockwise) so that the front face of the pivot portion (22) of the guard rod (20) is front of the lock case (1). (6) The locking part (21) of the watch rod (20) is housed in the housing recess (8) while being flush with the front surface or retracted.
All of the watch rod (20) is designed so that it does not protrude beyond the front surface of the front (6).

Reference numeral (27) is a stopper that prevents the guard rod (20) from retracting when the guard rod (20) is locked, and is normally against the urging force of the stopper spring (28) as shown in FIG. 27a)
When the guard rod (20) is locked, the contact member (27a) is moved forward from the indoor side by the operating member by the urging force of the stopper spring (28) as shown in FIG. 2 to contact the guard rod (20). The stopper (2
The rotation operation of 7) can be linked to the hub (31) via a lever or the like.

[Second Embodiment] FIGS. 4 and 5 show a second embodiment.

This one uses one or more levers as an operating mechanism (30), and interlocks one of the levers with a dead hub (51),
The point that the guard rod (20) and the dead bolt (50) can be locked and unlocked by rotating the dead hub (51) via the guard rod lever (10), and the specific structure of the guard rod lever (10). The point is remarkably different from that of the first embodiment, and other configurations are almost the same as those of the first embodiment.

That is, the watch lever lever (10) is fitted and fixed in a substantially piston-shaped watch lever body (17) and a shaft hole (17a) penetrating in the axial direction of the watch lever lever body (17). Shaft (1
8) consists of More specifically, after inserting the shaft body (18) into the shaft hole (17a) of the watch lever lever body (17), the washer (41) is attached to the rear end surface of the shaft hole (17a) to secure the screw ( 40), and the projection (43) in front of the flange (42) formed at the front end of the shaft (18) is integrally fixed to the upper end of the guard rod (20) by caulking or the like. is there. Further, a shaft hole (10c) into which the shaft (11) fixed to the lock case (1) is inserted is formed in the front part of the lever body (17) of the guard rod, and the shaft (11) of the guard rod (20). A hanging piece (44) having an engaging receiving portion (10d) on the rear lower surface side, to which a spring (12) biasing the locking portion (21) is attached.
Is drooping. Due to the urging force of the spring (12), the entire guard lever (10) and the guard rod (20) rotate in the locking direction (clockwise direction) around the shaft (11) as a fulcrum, and the locking portion of the guard rod (20) ( 21) is inserted into the receiving hole (5) of the receiving member (2). When the door is opened in this state, the projection (25) formed on the back side of the watch rod (20) rides on the front surface (6a) of the front (6),
The front surface of the pivoting portion (22) of the watch rod (20) projects from the front surface (6a) of the front (6), and the door is opened to a predetermined range and cannot be opened any further.

A spring fitting hole (46) is formed in a part of the shaft hole (17a) of the watch lever lever body (17), and a click spring (47) is fitted in the spring fitting hole (46). The click spring (47) restores the guard rod (20) in the open state to the posture (vertical state) when the door is closed.

The lock case (1) has an engagement portion (36b) which is engaged with the engagement receiving portion (10d) of the watch lever (10), and the pivot shaft (36a) fixed to the lock case (1). A first lever (36) pivotally supported on the first lever (36) and a first lever (stopper) (37) linked to the second lever (36) by a bent portion (36d) and an engaging portion (37c).
And the dead hub (51) linked with the second lever (stopper) (37) by the bent portion (36d) and the engaging portion (54) are respectively interlocked with each other. By rotating the dead hub (51) with the operation shaft (32) of the operation member such as the outside and the operation shaft (32) of the operation member such as the cylinder from the outdoor side, the second lever (stopper) (37) and the first lever (36) are rotated respectively,
Locking part (21) of the caution ring (20) via the caution lever (10)
The lock case (1) is retracted from the front surface (6a) of the front surface (6). (48) and (49) are springs attached to the pivots (36a) and (37a) of the first lever (36) and the second lever (stopper) (37), respectively.

The dead hub (51) rotatably supports the central portion having the hub hole (53) in the lock case (1), and the one engaging portion (54) of the first lever (36) as described above. Bend (36
a) and engage the other engaging part (55) with the dead bolt (5
0) The engaged part (56) formed in the rear part is engaged with the engaged part (56), and the operation shaft (32) of an operation member such as a thumb turn or a cylinder is inserted into the hub hole (53). .

The locking / unlocking operation of the watch rod (20) will be described below.

As shown in FIG. 4, the other engaging portion (55) of the dead hub (51)
Is located behind the engaged portion (56) of the deadbolt (50), it resists the force of the spring (48) that urges the first lever (36) in the counterclockwise direction. Engagement part (5
4) rotates the first lever (36) clockwise, so that the engaging portion (36b) causes the engaging receiving portion (10d) of the hanging piece (44) of the watch lever (10) to spring (12). ) Is rotated against the urging force of the lock part (21) and the pivoting part (22) of the locking rod (20) is inserted into the front part (6) of the lock case (1) as shown in FIG. The front face (6a) is made to be the same or retracted from the front face, and the dead bolt (50) is retracted in the lock case (1).

When the dead hub (51) is rotated to the solid line state of FIG. 5, the first lever (36) is rotated counterclockwise by a predetermined angle.
The guard rod (10) is rotated clockwise by the urging force of the spring (12), and the pivot portion (22) of the guard rod (20) is front (6) of the lock case (1) as shown in the figure. The engaging part (21) is projected and engaged in the receiving hole (5) while being retracted from the front surface. However, the dead bolt (50) is retained in the state of FIG. 4 in which it is immersed in the lock case (1) as indicated by the alternate long and short dash line. When the dead hub (51) is further rotated to rotate the other engaging portion (55) to the position shown by the chain line in FIG. 5, the dead bolt (50) is in the fully locked state as shown by the two-dot chain line. At this time, the first lever (36) is held in the state shown in FIG. 5 by the stopper pin (57).

As shown in FIG. 5, the second lever (stopper) (37) is in a locked state in which the locking portion (21) of the guard rod (20) is projected, and even if the guard rod (20) is improperly pressed from the outside, The vigilance (2
Since the back surface of (0) hits the contact portion (37b) of the second lever (37), the locking portion (21) is prevented from being released from the receiving hole (5) and unlocked. Have a role. In this case, since the second lever (37) is locked to the engaging portion (36c) of the first lever (36), the second lever (37)
Does not enter (retract) from the state shown in FIG.

[Modifications, etc.]

Note that the number of levers as the actuating mechanism (30) is not limited to two as in the above embodiment, but may be two or more, or may be one.
The specific configuration is arbitrary.

In the second embodiment, a guard tablet without the dead bolt (50) may be implemented.

A spring for rotating the watch ring (20) can also be provided on the watch ring (20).

The protrusion (25) may be formed on the front surface (6a) of the front surface (6) or the like.

[Effect of device]

According to this invention, (1) the above-mentioned lever lever or the lever is provided with a spring which always urges the locking portion of the lever to project, and when the lever is locked, the operating mechanism is locked in the locking direction. By rotating to, due to the urging force of the spring,
The guard lever and the guard rod are integrally rotated in the locking direction to project the locking portion (21) of the guard rod, while a protrusion is formed on the guard rod or the front so that the door can be locked in the locked state. When the door is opened, the guard rod is projected outward from the front surface of the front through the projection so that the door is opened and the door is opened. Therefore, the guard rod is rotated according to the opening of the door. At this time, only the guard rod or the projection formed on the front part comes into contact with a part of the guard rod, and the shaft of the guard rod does not hit, so that the door can be opened smoothly. Further, the amount of protrusion of the caution rod with respect to the front front surface can be adjusted according to the length of the protrusion.

(2) Further, even when the distance (dust) between the door and the frame becomes large, the biasing stroke of the spring can be increased to increase the protrusion amount of the guard rod, so that the locking portion of the guard rod can be held by the receiving member. Can be securely inserted into the receiving hole.

On the contrary, when the distance (dust) between the door and the frame is small, the amount of protrusion of the precautionary rod can be reduced by reducing the urging stroke of the spring. Even in this case, the locking portion of the precautionary rod can be securely held in the receiving hole. You can get involved.

As described above, it is possible to provide a heart lock that can reliably maintain the caution state regardless of the size (distance) between the door and the frame.

(3) When the guard rod is unlocked, the guard rod and the guard rod are integrally rotated in the unlocking direction by rotating the actuating mechanism against the spring biasing force in the unlocking direction so that the guard rod engages. Since the stopper is made to immerse, and the front surface of the other end of the guard rod is made to be the same as or immersed from the front surface of the front of the lock case, when it is attached to the door and used, or the product of this precaution pad. During transportation, etc., the pivot joint of the above-mentioned precaution rod may accidentally come into contact with other objects, and the pivot joint portion of the precaution rod or the operating mechanism such as the lever may be damaged or malfunction. It does not cause

(4) Since the pivoting portion of the guard rod is recessed from the front front surface of the lock case as described above, dust and foreign matters do not enter through the gap near the pivoting portion, and the appearance is not unsightly. And so on.

(5) If a stopper is provided in the lock case to prevent the guard rod from retracting at the time of locking the guard rod, the guard rod is unjustly retracted from the outside and the locking portion is removed from the receiving hole to be unlocked illegally. There is no such thing.

(6) If a hub that is rotated by an operating member such as a cylinder or thumb turn is used as the actuating mechanism, and the watch lever is directly actuated by this hub, the number of components can be reduced and an inexpensive padlock can be provided. .

(7) As an operating mechanism, one or more levers are used to interlock with the vigilance lever and a dead hub is interlocked with one of the levers, and the vigilance rod and dead bolt are rotated by the dead hub. If locking and unlocking are enabled, the precautionary function and / or the locking function can be selectively used only by rotating the dead hub.

(8) If the guard rod is provided with a click spring, and the click spring is used to return the guard rod in the open state to the posture when the door is closed, the guard rod can easily move to the posture (vertical state) when the door is closed. I can return.

[Brief description of drawings]

Each of the figures shows an embodiment of this invention. FIG. 1 is a longitudinal sectional view showing an unlocked state of the guard rod of the first embodiment, FIG. 2 is a vertical sectional view showing a locked state of the guard rod, and FIG. 3 is an operation state diagram in which a door is restricted from opening. FIG. 4 is a longitudinal sectional view showing an unlocked state of the guard rod and dead bolt of the second embodiment,
FIG. 5 is a longitudinal sectional view showing a state in which the guard rod is locked and the dead bolt is unlocked. (1) …… Lock case, (2) …… Receiving member, (5) …… Receiving hole, (6) …… Front, (6a) …… Front, (10) ……
Watch lever, (12) …… Spring, (19), (47) …… Click spring, (20) …… Watch rod, (21) …… Locking part, (2
2) ... Pivot part, (25) ... projection, (27) ... stopper, (30) ... actuating mechanism, (31) ... hub, (32) ...
Operating axis of operating member, (36) …… First lever, (37) ……
2nd lever (stopper), (50) ... dead bolt,
(51) …… Dead hub, (53) …… Hub hole.

Claims (5)

[Scope of utility model registration request] 1. A guard rod (20) having a locking portion (21) at one end.
The other end of the lock lever (10) is rotatably pivotally attached to the lock case (1) via a guard lever (10), and the guard lever (10) is mounted on the lock case (1) by an operating mechanism (30). ) Is operated so that the locking portion (21) of the guard rod (20) is retracted and retracted, and the guard rod (10) or the guard rod (20) is always equipped with the guard rod (20). A spring (12) biasing the locking portion (21) of the spring (20) is provided, and an actuating mechanism (30) that resists the biasing force of the spring (12) when unlocking the guard ring (20). ) In the unlocking direction, the guard lever (10) and the guard rod (20) are integrally rotated in the unlocking direction so that the locking portion (21) of the guard rod (20) is retracted. , The front surface of the other end of the guard rod (20) is made to be the same as or retracted from the front surface (6a) of the front (6) of the lock case (1) so that the guard rod (20) operates when locked. When the structure (30) is rotated in the locking direction, the guard lever (10) and the guard rod (20) are integrally rotated in the locking direction by the urging force of the spring (12) to rotate the guard rod (20). Alternatively, a protrusion (25) is formed on the front (6), and when the guard rod (20) is locked, the guard rod (20) moves outward from the front (6) through the protrusion (25) when the door is opened. A locking pad characterized in that the locking rod (20) is projected to rotate to open the door. 2. A stopper (27) in the lock case (1) for preventing the guard rod (20) from retracting when the guard rod (20) is locked.
The caution tablet according to claim 1, further comprising: 3. A hub (31) which is rotated by an operating member such as a cylinder or thumb turn is used as the actuating mechanism (30), and the watch lever (10) is directly actuated by the hub (31). The caution tablet according to claim (1) or (2). 4. A dead hub, wherein at least one lever is used as an operating mechanism (30) to interlock with a watch lever (10), and one of the levers interlocks with a dead hub (51). The locking pad according to claim (1) or (2), wherein the locking rod (20) and the dead bolt (50) can be locked and unlocked by rotating the (51). 5. A click spring (1) is provided on the vigilance lever (10).
9) and (47) are provided, and click springs (19) and (47)
The guide ring according to any one of claims (1) to (4), wherein the guard rod (20) in the opened state is configured to be returned to the posture when the door is opened.