JP3304332B2 - Locking device with lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device with a lock which can release a lock of an opening / closing door by an unlocking operation of a lock by a specific key and an unlocking operation of a catch operating member by a handle.

[0002]

2. Description of the Related Art As a conventional locking device with a lock, a lock can be locked and unlocked by a specific key, and a handle used for opening and closing an opening / closing door is rotated forward and reverse to be connected to the handle. Rotate the lock shaft
In some cases, the door can be closed and unlocked. According to this, the handle can be removed from the lock shaft at the time of closing and locking, and the removal of the handle automatically locks the lock shaft with respect to the seat body, while inserting the handle causes the lock to be stopped. Is immediately released.

[0003]

However, in such a conventional lock device with lock, after the lock is unlocked by operating a specific key which has been stolen, an imitation handle or similar tool is used. With the use of, there is a problem that any person can easily operate the rotation of the locking shaft, so that the door can be easily unlocked by another person and another person can enter the room.

The present invention solves the above-mentioned problem. Even if the lock is unlocked by a stolen key and the lock of the opening / closing door is to be unlocked by using an imitation handle or a similar tool, this unlocking is performed. It is an object of the present invention to obtain a lock device with a lock that can be prohibited by a special double lock structure and ensure sufficient security.

[0005]

SUMMARY OF THE INVENTION This invention has been made in view of the above object, it is an gist, especially
Turn according to the lock / unlock operation of the lock of the door with the fixed key.
Moving member and a relative movement in accordance with the movement of the rotating member.
Moving first and second slide plates
Rate and the first key at the time of locking operation by the specific key.
The rotation is restricted by the lock piece on the slide plate.
A stopper operating member with a handle operation hole
The operation hole of the stopper operating member is closed so that it can be opened, and
Cover that has a cover-side locking claw on the
The second slide plate against the
With cover lock locking claw that locks and unlocks
Operation of the cover lock member and the stopper operating member
A keyway formed on the inner peripheral surface side of the hole; and a bottom portion of the operation hole.
A fitting pin protruding at an eccentric position of the
Rotation support at the bottom of the material so that it is inclined by its own weight
And a case supporting the stopper operating member.
A part of the inclined stopper formed on the
With a groove to accommodate the keyway and mating pin
Operating axis of handle with key projection and mating hole
Into the operation hole where the cover is opened and exposed.
Then, a part of the stopper is detached from the groove and stopped.
It is characterized by being able to perform the rotation operation of the gold operation member
Lock device with a lock .

According to this aspect, the rotation operation of the specific key releases the restriction on the rotation of the stopper operating member by the first slide plate, and at the same time, the operation of the cover lock member by the second slide plate and the accompanying operation. By unlocking the cover, a turning operation of the latch operating member by the handle is enabled. Here, as long as the handle does not have a key protrusion and a fitting hole corresponding to the key groove and the fitting pin provided in the clasp operating member, the handle must be provided in a necessary and sufficient amount in the operating hole of the clasp operating member. This prevents insertion of the lock and prevents the rotation of the handle from being transmitted to the lock operating member, making it impossible to release the lock of the lock. Also, at this time, since the tip of the stopper remains in the concave groove of the case member, it is attempted to forcibly rotate the stopper operating member using a tool such as a handle or a driver imitated temporarily. Also, the stopper operating member is not rotated. Thus, even if the lock is turned by the stolen key, the lock cannot be released from the receiving member on the mounting frame side of the opening and closing door unless the handle is used, and the double and triple closing locks are provided. Make it sustainable.

Another gist of the present invention is that the stopper comprises:
The lock device with a lock according to the present invention, wherein the lock member is completely separated from the concave groove of the case member only when the handle is inserted into the operation hole by a set amount or more.

According to this aspect, only when the handle is inserted into the operation hole of the stopper operation member so that the stopper is completely removed from the concave groove of the case member, the stopper operation member and the stopper lock are locked. Rotation in the release direction is enabled.

Another feature of the present invention is that one end of a stopper pivotally attached to a pin shaft attached to the stopper operating member has its front portion dropped into the cut groove by its own weight and the other end has its other end. The lock device with a lock according to the above, wherein the lock device is inclined so as to float in an upper operation hole.

According to this aspect, the operating shaft of the handle inserted into the operating hole of the stopper operating member has a shape and size matching the key groove and the fitting pin of the operating hole, and By inserting the operation shaft, the stopper is changed from the inclined state due to its own weight to a substantially horizontal state, and further, when the fitting pin and the fitting hole are properly fitted, the turning operation of the stopper operating member can be performed by the handle. ing.

Further, another gist of the present invention is that the stopper is not housed in the concave groove by its own weight, but by providing a spring member between the stopper operating member or the case member and the stopper. The stopper is always forcibly accommodated in the groove by the member to restrict accidental rotation of the stopper operating member, and the stopper is operated only by inserting the operating shaft of the handle into the operating hole. The member was made rotatable by the handle.

According to this aspect, as compared with the case in which the stopper is housed in the concave groove due to its own weight, the locking lock piece of the first slide plate is removed from the notch of the stopper operating member. When the stopper operating member becomes rotatable by escape of the stopper from the concave groove due to vibration of the locking device with the lock of the present invention, the stopper rotates and comes off from the mounting frame of the door. I have.

Another aspect of the present invention is the lock device with a lock, wherein the fitting pin has a strength and a size capable of rotating the catch operating member by the handle.

According to this aspect, the fitting pin of the stopper operating member and the fitting hole of the handle that are fitted to each other are eccentric from the center of rotation, and therefore, the rotating operation force of the handle is increased by a large amount. The dynamic load is transmitted directly and sufficiently to the stopper operating member, so that the stopper operating member can be rotated easily without damaging the key projection.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a vertical sectional side view showing a lock device with a lock according to the present invention. This lock device with a lock is formed by attaching a case member 2 to an attachment member 1 for an opening / closing door (not shown), and a lid member 3 is attached to an opening in an upper half of the case member 2. A lock 4 is attached to the lid member 3, and a key insertion port 4 a of the lock 4 faces a recess 3 a formed on the front surface of the lid member 3.

A cap 5 covering the opening of the concave portion 3a is provided on the cover member 3 so as to be rotatable about a pin 6. Thus, by rotating the cap 5 about the pin 6, the specific key can be inserted into the key insertion slot 4 a. In this figure,
As the lock 4, a well-known cylinder lock, for example, is used.

At the rear end of the lock 4, a plate-like rotating member that rotates in accordance with the turning operation of the key inserted into the key insertion slot 4a, that is, the turning operation and the unlocking operation. 7 are provided. The rotating member 7 has one pin 8a, 8b at a symmetrical position substantially equidistant with respect to the center of rotation. The pins 8a and 8b are attached to the rotating member 7 by caulking or the like.

On the other hand, on the bottom 2a of the case member 2,
A pair of guide pins 9a and 9b as shown in FIGS.
Has been planted. Each of these guide pins 9a, 9b
Are inserted into long holes 10a and 10b formed in the first slide plate 10 and the second slide plate 11 that slide on the bottom 2a. Therefore,
These guide pins 9a and 9b function to guide the first slide plate 10 and the second slide plate 11 in the vertical direction in the drawing.

Each of the first slide plate 10 and the second slide plate 11 has a respective one of a pair of laterally convex guide holes 10c and 10d. Each pin 8 on the moving member 7
a, 8b are inserted. Accordingly, the first slide plate 10 and the second slide plate 11 are relatively movable in the vertical direction along the guide pins 9a and 9b by the movement of the pins 8a and 8b due to the rotation of the rotation member 7. .

FIGS. 7 and 8 show the overall shape of the rotating member 7 and pins 8a and 8b. According to this, the rotating member 7 has a substantially rhombic shape, and the guide holes 10 are formed at both ends thereof.
Pins 8a and 8b having small diameter portions inserted into c and 10d
Are caulked and fixed. In the center of the rotating member 7, there is provided a fitting hole 7a which is fitted to the end of the lock shaft.
Is provided.

FIGS. 9 and 10 are a front view and a side view, respectively, showing the first slide plate 10. The first slide plate 10 includes the elongated hole 10a and the guide hole 10c.
A locking lock piece 12 that is bent forward is formed at the lower end. As shown in FIGS. 3 and 4, the locking lock piece 12 is generally offset near the lower portion of the second slide plate 11 so as not to interfere with the second slide plate 11.

FIGS. 11 and 12 are a front view and a side view showing the second slide plate 11, which has the elongated hole 10b and the guide hole 10d, and has a vertically elongated longitudinally bent portion at the lower end. A cover lock forcible operation piece 13 and a horizontally long cover lock release operation piece 14 that bends forward at an upper portion thereof are provided.

A pair of brackets 15 as shown in FIG. 2 project from the back surface of the lid member 3, and a horizontal shaft 16 extending between these brackets 15
A cover lock member 17 having a shape as shown in FIG. 6 is rotatably supported. This cover lock member 17
Has a cover lock engaging claw 17a at one end, which can be engaged with a cover-side engaging claw 30 described later. Also,
The cover lock member 17 is locked to one end of a torsion spring 18 wound around a horizontal shaft 16 as shown in FIGS. 5 and 6, and is constantly rotated counterclockwise about the horizontal shaft 16. Being energized. Therefore, when the cover is closed as described later, the cover locking claw is locked to the cover side locking claw, thereby restricting the opening of the cover.

Further, the first slide plate 10 and the second slide plate 1 are provided in the case member 2.
Below the cover lock member 17 and the cover lock member 17, a stopper operation member 19 having a bottomed cylindrical shape is rotatably provided, and a notch 20 as shown in FIGS. Is provided. The notch 20 is formed in a size and shape that can accommodate the locking lock piece 12 of the first slide plate 10.

The operating hole 1 of the stopper operating member 19
As shown in FIG. 13, a relatively thick fitting pin 21 having a sharp tip is protruded from the bottom 19b of the base 9a at an eccentric position off the center of the bottom 19b. Further, a keyway 22 having a predetermined length is formed on the inner peripheral surface of the cylindrical portion of the stopper operating member 19 in the front-rear direction. A fitting hole and a key projection of a handle described later can be inserted into the fitting pin 21 and the key groove 22, respectively.

Further, a cut groove 23 is formed in a part (lower part) of the cylindrical portion of the stopper operating member 19, and a pair of support portions provided on two support portions forming the cut groove 23 are provided. A pin shaft 24 as shown in FIGS. 5 and 6 is supported in the pin hole. A stopper whose weight is deviated forward is rotatably supported on the pin shaft 24. This stopper has a support hole 40 for a horizontal axis at a position deviated rightward from the center of a substantially rectangular plate as shown in FIG. 14, and has an inclined surface 41 which partially forms a recess on the upper surface. . Therefore, when the handle is not inserted into the operation hole 19a, as shown in FIG. It falls into a concave groove 26 formed on the surface.
At this time, the inclined surface 41 is substantially in the same plane as the inner peripheral surface of the operation hole 19a.

A ring member 27 having a key notch 27a and an insertion hole 27b connected to the key notch 27a, into which the tip of the handle can be inserted, is attached to the open end of the stopper operating member 19. A cover 28 for closing the opening end of the stopper operating member 19 via the ring member 27.
Is attached to the lower part of the stopper operating member 19 so as to be freely opened and closed. The cover 28 is rotatably supported about a horizontal shaft 29 below the stopper operating member 19.

The cover 28 is provided with a cover-side engaging claw 30 projecting from the center rear surface of the upper end thereof, which faces the cover-locking engaging claw 17a of the cover lock member 17.
In addition, a ring member 27
Key notch 27a and keyway 2 of stopper operating member 19
A projection 31 inserted into the projection 2 is integrally provided.

On the back surface of the stopper operating member 19, a columnar shaft portion 32 having a predetermined length is integrally protruded, and penetrates the bottom of the case member 2. A stopper 33 is fixed to an end surface of the penetrated shaft portion 32 by a fixing screw 34. Further, two ring grooves 35 are provided on the outer periphery of the shaft portion 32, and O-rings 36 housed in these ring grooves 35 improve watertightness between the shaft portion and the case member in the through portion. Is secured.

Further, as shown in FIG. 15, the handle 37 is substantially T-shaped as a whole, and has a handle 37a and an operation shaft 37b. A key projection 38 is integrally provided at a distal end of the operation shaft 37b at a position slightly away from the distal end thereof.
The shape and size are such that they can be inserted into the device 2. A fitting hole 39 is formed at an eccentric position of the distal end of the operation shaft 37b. The fitting hole 39 is formed in a shape and a size to be fitted in the fitting pin 21.

The locking device with the lock constructed as described above performs the closing lock operation of the opening / closing door and the closing lock releasing operation by the stopper 33 as follows. Now, assuming that the opening / closing door is in the closed locked state, first, the cap 5
Is opened by rotating the lock 4 around the pin 6 so that the lock 4
The rotation member is rotated to the position shown in FIG. As a result, the pins 8a lower the first slide plate 10, and the pins 8b raise the second slide plate 11. For this reason, the locking lock piece 12 at the lower end of the first slide plate 10 falls into the notch 20 of the stopper operating member 19, and the rotation of the stopper operating member 19 is restricted. As a result, the state in which the stopper 33 is engaged with the receiving member on the support frame side of the door, that is, the closed state of the door is maintained.

On the other hand, the upper edge of the second slide plate 11 causes the upper edge of the cover lock forcible operation piece 13 to move upward.
In FIG. 5, a part (lower part) of the cover lock member 17 is pushed up and held in the counterclockwise direction, and the state in which the cover lock engaging claw 17a is engaged with the cover side engaging claw 30 of the cover 28 is maintained. . For this reason, the cover 28 closes the insertion hole 27b of the ring member 27 and the operation hole 19a of the stopper operating member 19, and restricts insertion of the handle and unlocking of the stopper by this.

Next, when unlocking the open / close door in the closed locked state, the cap 5 is opened again and the lock 4 is opened.
Key is inserted into the key insertion slot 4a, and the key is turned in the opposite direction to the above. Therefore, the rotating member 7 rotates in the operation direction, and the pin 8a raises the first slide plate 10 and the pin 8b lowers the second slide plate 11, as shown in FIG. With this operation, the locking lock piece 12 at the lower end of the first slide plate 10 escapes from the notch 20 of the stopper operating member 19. At this time, the distal end of the stopper 25 is
6, the free rolling of the stopper operating member 19 is restricted.

On the other hand, the lowering of the second slide plate 11 causes the cover unlocking operation piece 14 thereof to push down and hold a part (upper part) of the cover lock member 17. For this reason, the cover lock locking claw 17a is
Of the cover 28, so that the cover 28
Can be released with a finger as shown in FIG.
In addition, by interposing an elastic member such as a sponge between the cover 28 and the ring member 27 or the case member 2, the cover 2 is automatically released when the locking claws are released.
8 can be opened by a predetermined amount, and the operation of opening the cover 28 with a finger can be facilitated.

Subsequently, the handle 3 is inserted into the insertion hole 27b of the ring member 27 and the operation hole 19a of the stopper operation member 19.
7 is inserted. At this time, the handle 37
The key projections 38 are inserted into the key notches 27a and the key grooves 22, respectively, and the fitting holes 39 are adapted to the fitting pins 21. At this time, the insertion of the operation shaft 37b of the handle 37 causes the stopper, whose front end has been dropped into the concave groove 26, to move to the rear end of the operation shaft 37b.
As a result, as shown in FIG. 6, the pin rotates in a horizontal state about the pin shaft 24. Therefore, this stopper 25
The rotation restriction of the stopper operating member 19 with respect to the case member 2 due to is released.

Then, by rotating the handle 37 in the direction of opening the door, the stopper operating member 19 rotates in the same direction, and the stopper 33 attached to the rear end thereof is moved toward the support frame side of the door. Will be separated from the receiving member. Therefore, the closing lock of the opening / closing door is released, and the opening operation can be performed. In this opening operation state, the handle 3
7 is rotated out of the key notch 27a position of the ring member 27, the operation shaft 37b of the handle 37 cannot be removed from the operation hole 19a,
The handle 37 can be prevented from being lost. Also, the key inserted into the key insertion port 4a is in an unlocked state and cannot be removed from the key insertion port 4a for the same reason.

Next, when the door is closed and locked,
The handle 37 in which the operation shaft 37b is fitted in the operation hole 19a is rotated in the opposite direction to the above, and the stopper 33 is rotated together with the stopper operating member 19, and the stopper 33 is moved. Lock to the receiving member. At this time, the position of the key projection 38 of the handle 37 matches the position of the key notch 27a and the key groove 2.
2, the handle 37 is in the operation hole 19a.
Can be extracted from

After the handle 37 has been pulled out, the cover 28 is pushed up with a finger to remove the ring member 27.
Insertion hole 27b and operation hole 19 of stopper operation member 19
The rotation operation is performed about the horizontal shaft 29 so as to close the position a. Subsequently, the specific key inserted into the key slot 4a of the lock 4 is rotated in the locking direction. As a result, the rotating member 9 rotates from the state shown in FIG. 4 to the state shown in FIG. 3, the pin 8a on the rotating member 9 lowers the first slide plate 10, and the pin 8b moves the second slide plate 11 To rise.

When the first slide plate 10 is lowered, the locking lock piece 12 falls into the notch 20 of the stopper operating member 19, so that after the handle 37 is removed, a part of the stopper is in the concave groove 26. In combination with that, the careless rotation of the stopper operating member 19 is restricted.

On the other hand, when the second slide plate 11 is lifted, the suppression of the cover lock member 17 by the cover lock release operation piece 14 is released. For this reason, the cover lock member 14 rotates by receiving the repulsive force of the torsion spring 18, and locks the cover lock locking claw 17 a to the cover side locking claw 30 by closing the cover 28. Further, the upper edge of the cover lock forced operation piece 13 is lifted so as to support a part of the cover lock member 17 from below, and the engagement between the locking claws 30 and 17a is held so as not to be easily disengaged. Becomes

By pulling out the key from the key slot 4a of the lock 4, the engagement of the stopper 33 with the receiving member is locked, and the double lock state of closing the door is maintained. .

If the specific key is stolen, there is a fear that the lock of the opening / closing door may be released by the specific key and the imitation handle. Further, there is a similar concern when the cover is destroyed regardless of the specific key being stolen. In the present invention, as shown in FIG.
b having a key projection 38 and a fitting hole 39 on the handle 3
Only with the use of 7, the turning operation of the stopper operating member 19 is enabled.

For example, when a handle having no fitting hole 39 of a general-purpose type is inserted into the operation hole 19a of the stopper operating member, as shown by a two-dot chain line in FIG. The stopper 25 can be inserted only until it hits the fitting pin 21, and the tip of the stopper 25 remains in the concave groove 26. Therefore, even if the key projection 38 is provided on the handle or the driver is pressed against the key groove 22 of the stopper operating member 19, the stopper operating member 19 is never turned by the turning operation of the general-purpose handle. Does not rotate. Therefore, the fitting pin 21 has a function of rotating the stopper operating member 19 by a handle, and a function of inhibiting rotation of the stopper operating member by using an imitation handle or the like.

Since the front end of the stopper 25 is recessed into the concave groove 26 of the case member 2 around the pin shaft 24, the stopper is moved by using a finger or a tool as shown in FIG. It is impossible to insert a counterfeit handle into the operation hole and rotate it while maintaining the horizontal state. Therefore, the rotation operation of the stopper operating member 19 is not performed, and the closing lock of the stopper 33 on the receiving member cannot be released, so that sufficient security can be ensured.

FIG. 16 shows another embodiment of the stopper 25 in which the center of gravity is shifted so that the front side (the cover 28 side) is lowered by its own weight by the pin shaft 24 of the stopper operating member 19, and the shaft 25 is mounted. 19 to FIG.

That is, as shown in FIGS. 16 and 17,
The stopper 25 'is axially attached to the stopper operating member 19 with a pin shaft 24', and the stopper 25 'is always turned counterclockwise (arrow).
A spring member 42 is provided on the stopper operating member 19 above the horizontal position of the pin shaft 24 'so as to urge the pin shaft 24'. And
In the form of this stopper, a depression 43 is further provided above the inclined surface 41 of the stopper 24 above the pin shaft 24 ', and sufficient projections 44, 45 are formed on both sides of the depression 43.

On the other hand, a handle having a shape different from that of the handle 37 shown in FIG. 15 is prepared in FIGS. The handle 46 is different from the handle 37 in that the handle 46 a
b is provided with a key projection 47 and a fitting hole 48, but the operation shaft 46b is provided with the projection 4 of the stopper 25 '.
This is structurally different in that a concave portion 49 into which 4 is fitted is provided.

Therefore, these operations will be described below. When the locking lock piece 12 is not fitted into the notch 20 of the stopper operating member 19, the operating shaft 4 of the handle 46 is
When the key projection 38 of 6b is inserted into the key groove 22 with the key notch 27a, the fitting hole 48 aligned with the fitting pin 21 is fitted. At the same time, the lower end of the operating shaft 46b slides on the stopper 25 'which has been forcibly dropped into the concave groove 26 by the spring member 42, but the fitting hole 48 is fitted into the fitting pin 21. At the time when the spring member 4
The convex portion 45 of the stopper 25 'is pushed downward against the force of 2, that is, the stopper 25' rotates clockwise about the pin shaft 24, and at the same time, the convex portion 44 enters the concave portion 49. The rotation control of the stopper operating member 19 is released (FIGS. 16 to 17), and the handle 33 is rotated to remove the stopper 33 from the mounting frame of the door, thereby enabling the door to be opened.

[0049]

As described above, according to the present invention, the first slide plate and the second slide plate are relatively moved by the operation of the specific key with respect to the lock, and the stopper is operated by the movement of one of the slide plates. While enabling rotation lock and rotation lock release of the member,
By locking and unlocking the cover using the cover lock member by moving the other slide plate, the rotation lock and unlocking of the latch operating member can be performed by operating the handle from the front, Thus, double locking of the opening / closing door using the specific key and the handle can be easily realized with a simple configuration.

In this case, the rotation lock release of the stopper operating member can be realized only by inserting and rotating a handle having a key projection and a fitting hole which fits the key groove and the fitting pin of the stopper member. By making it possible, when the key is lost or the cover is broken, the rotation of the catch operating member by the imitation handle or tool can be reliably prohibited, and sufficient security is ensured.

Further, in the present invention, the stopper is rotated so as to completely separate from the concave groove of the case member only when the handle is inserted into the operation hole by a predetermined amount or more. The operation of the stopper operating member by the imitation handle having no fitting hole that fits the pin can be prevented. Also, by tilting the stopper so that the front portion falls into the groove by its own weight, the rotation prohibition lock of the catch operating member can be automatically engaged without using a separate component such as a spring. Thus, the configuration can be simplified and the cost can be reduced.

However, as a drawback in this case, as a whole, the locking device of the device of the present invention moves up and down, and the stopper comes off from the concave groove.
In addition, when the locking lock piece is removed from the notch, there is a danger that the stopper operating member is rotatable and the stopper is detached from the mounting frame of the door. In order to avoid this danger, the lower part of the stopper, which is symmetrical to the spring member, is always located in the groove so that it does not rise upward in the natural state, and the protrusion of the stopper is fitted to the recess of the handle shaft. By the alignment, the handle shaft is sufficiently inserted into the operation hole to prevent erroneous operation, and it is difficult to rotate the stopper operating member by means other than the handle.

Further, in the present invention, the fitting pin has a strength and a size capable of rotating the stopper operating member by the handle. From the viewpoint of these strengths, a sufficient force for rotating the stopper operating member cannot be obtained only by the engagement of the key ridge, but a sufficiently large force is obtained by the engagement between the fitting pin and the fitting hole. Thus, the stopper operating member can be turned.

[Brief description of the drawings]

FIG. 1 is a front view showing a lock device with a lock according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional side view of the lock device with a lock shown in FIG. 1;

FIG. 3 is an explanatory view showing one operation state of a first slide plate and a second slide plate in the present invention.

FIG. 4 is an explanatory view showing another operation state of the first slide plate and the second slide plate in the present invention.

FIG. 5 is a sectional view of a main part showing one operation state of the cover lock member according to the present invention.

FIG. 6 is a sectional view of a main part showing another operation state of the cover lock member according to the present invention.

FIG. 7 is a front view of the rotating member shown in FIG. 1;

FIG. 8 is a side view of the rotating member shown in FIG. 7;

FIG. 9 is a front view showing a first slide plate according to the present invention.

FIG. 10 is a side view of the first slide plate shown in FIG.

FIG. 11 is a front view showing a second slide plate according to the present invention.

FIG. 12 is a side view of the second slide plate shown in FIG.

FIG. 13 is a front view of the stopper operating member shown in FIGS. 2, 5, and 6;

FIG. 14 is a perspective view of the cover lock member shown in FIGS. 2, 5, and 6;

FIG. 15 is an enlarged front view showing a handle according to the present invention.

FIG. 16 is a partial longitudinal sectional view of the present invention before a handle operation using a stopper, a handle, and a stopper operating member other than FIGS. 14 and 15 and FIGS. 2, 5 and 6;

FIG. 17 is a partial longitudinal sectional view showing a state where the handle is inserted into the operation hole from FIG. 16;

FIG. 18 is a partially cutaway front view of another handle different from FIG. 15;

FIG. 19 is a bottom view of FIG. 18;

[Explanation of symbols]

 Reference Signs List 4 lock 7 rotation member 10 first slide plate 11 second slide plate 17 cover lock member 17a cover lock engagement claw 19 stopper operating member 19a operation hole 20 notch 21 fitting pin 22 key groove 25 stopper 26 concave groove 28 Cover 30 Locking Claw on Cover Side 33 Stopper 37 Handle 38,47 Key Projection 39,48 Fitting Hole 42 Spring Member 44 Stopper Protrusion 49 Handle Recess

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 3/00 E05B 13/08 E05B 5/02

Claims (5)

(57) [Claims] 1. A rotating member that rotates according to a locking / unlocking operation of a lock of an opening / closing door by a specific key, and a first slide plate and a second slide plate that relatively move according to the movement of the rotating member. A lock operation member having an operation hole of a handle, the rotation of which is restricted by a lock piece of the first slide plate during a locking operation by the specific key; A cover having an operation hole of the operation member that is openably closed and having a cover-side locking claw in part;
A cover lock member having a cover lock locking claw that is locked and unlocked by the second slide plate with respect to a cover-side locking claw of the cover; and an inner peripheral surface of an operation hole in the stopper operating member. A keyway formed on the side,
A fitting pin projected at an eccentric position at the bottom of the operation hole,
A stopper rotatably supported so as to be inclined by its own weight at a lower portion of the stopper operating member, and a concave groove formed in a case member for supporting the stopper operating member and accommodating a part of the inclined stopper. The operation shaft of the handle having a key projection and a fitting hole that fits the key groove and the fitting pin is inserted into the operation hole where the cover is opened and exposed, and a part of the stopper is inserted. From the groove
A lock device with a lock, wherein the lock device is detached so as to perform a rotation operation of a stopper operating member. 2. The apparatus according to claim 1, wherein the stopper pivots so as to completely separate from the concave groove of the case member only when the handle is inserted into the operation hole by a predetermined amount or more. Lock device with lock. 3. The locking device according to claim 1, wherein the stopper is inclined by its own weight such that a front portion falls into the concave groove. 4. A stopper member is provided between the stopper operating member or the case member and the stopper, and the stopper is housed in the groove by the urging of the spring member, and the stopper operating member is constantly rotated. The locking device according to claim 1, wherein the locking member is rotatable by restricting and inserting an operation shaft of the handle into the operation hole. 5. The locking device according to claim 4, wherein the operating shaft of the handle is provided with a concave portion into which a part of the stopper is fitted when the operating shaft is inserted.