KR100985343B1 - A rotary disc tumbler lock and a key - Google Patents

Abstract

An object of the present invention is to provide a new rotary disc tumbler lock having a large, strong, reversible key, and a large key difference.

An annular rotary disk tumbler 27 having a key insertion hole 26 sized to enclose a key hole in the center thereof is pivoted on the support shaft 23 and freed at the outer edge of the free end. A cutout 9 is formed, and at the corner of the open end of the key insertion hole 26, a coupling protrusion interfering with the flat or end edge of the tip 24 blade inserted into the keyhole is provided with the movement trajectory of the tip. The rotary disk tumblers 27 are pressed in the direction in which the engaging projections 29 are close to the abutment 24, and are normally held by the backup pins 8, and on the other hand, their tumbler groups. When each of the engaging projections of the mating member engages with the corresponding recess 25 formed in the blade of the tab inserted into the key hole, the unlocking notch 9 of each rotary disk tumbler is mated with the inner edge of the locking bar 6. city The.

Rotary disc tumbler, mating projection, backup pin, hinge, hatch cutout

Description

Rotary Disc Tumbler Lock and Key {A ROTARY DISC TUMBLER LOCK AND A KEY}

1 is a longitudinal sectional view showing an example of a conventional lever tumbler lock.

2 is a cross-sectional view thereof.

3 is an external perspective view of the retainer.

4 is a front view of a partition plate;

5 is a view showing a state in which the tumbler is removed in the longitudinal section of the rotary disk tumbler lock according to the embodiment of the present invention;

Figure 6 is a plan view of the latch of the rotary disk tumbler lock according to an embodiment of the present invention.

Figure 7 is a side view of the latch of the rotary disk tumbler lock according to an embodiment of the present invention.

Fig. 8 is a cross-sectional view of a rotary disk tumbler lock according to an embodiment of the present invention, showing a state in which a tumbler is provided with a coupling protrusion for contacting the blade plane portion of the hinge.

Fig. 9 is a cross sectional view of a rotary disk tumbler lock according to an embodiment of the present invention, showing a state in which a tumbler is provided with a engaging projection in contact with a corner portion of a blade end of the hinge.

Fig. 10 is a cross sectional view of a rotary disk tumbler lock as shown in Fig. 8, showing a state in which a key is inserted into a key hole.

Fig. 11 is a cross sectional view of a rotary disk tumbler lock as shown in Fig. 9, showing a state in which a key is inserted into a key hole.

Fig. 12 is a cross sectional view of a rotary disk tumbler lock as shown in Fig. 8, in which a key is inserted into a key hole and a state in which the leading end of the engaging projection is raised on the surface of the blade;

Fig. 13 is a cross sectional view as in Fig. 8 of a rotary disk tumbler lock according to another embodiment of the present invention as set forth in claim 1;

Fig. 14 is a cross sectional view as in Fig. 8 of a rotary disk tumbler lock according to an embodiment of the present invention as set forth in claim 3;

<Explanation of symbols for the main parts of the drawings>

1: Cam Home

2: outer cylinder

3: partition plate

4: keyhole

5: inner tube

6: locking bar

7: slot                 

8: backup pin

9: freezing cutout

11: lever tumbler

12: key guide

14: Telplug

15: Retainer

16: flange

17: storage hole

18: insertion member

19: stopper plate

21: fixed wheel

22: guide home

23: support shaft

24: side

25: recess

26: key shovel hole

27: rotary disc tumbler

28: locking end

29: engaging projection

31: tumbler spring                 

32: screw support shaft

The present invention relates to a new rotary disc tumbler lock.

Although there are various types of cylinder locks, the cylinder lock which is the main product of the present applicant, and is recognized to be relatively high, for example, there is a lever tumbler lock.

As shown in Figs. 1 and 2, the lever tumbler lock has an outer cylinder 2 in which a cam groove 1 is formed along the busbar of the inner circumferential surface thereof, and the outer cylinder 2 is rotatably fitted in the outer cylinder in the center axial direction through a gap. In addition to providing a plurality of stacked partition plates 3 and 3, the inner cylinder 5 which penetrates the key hole 4 along the center axis line, and extends along the busbar of the inner cylinder 5, It is movably guided in the radial direction and has a locking bar 6 pressed in the direction in which the outer edge engaging with the cam groove 1 projects outward.

In addition, the respective slots 7 between the partition plates each have a substantially C-shaped shape, pivotally supported at one end thereof in a rotatable manner, and pressed in a direction interfering with the side end edge of the key inserted into the keyhole. The lever tumbler 11 which is normally latched by the back-up pin 8 which penetrates an inner cylinder in the axial direction, and provided the free cutting edge 9 which receives the inner edge of the locking bar 6 in the free end outer edge corner. ) Is inserted.

And, when each of these tumbler groups engages with the corresponding keyway of the tuck inserted into the keyhole, the release cutouts 9 of each lever tumbler 11 mate with the inner edges of the locking bar 6 ( Not shown). Here, a side key generally means a master key, but in the present specification, a key having a specific key groove or recess formed in a main body portion of a key for unlocking one lock.

Accordingly, when the inner cylinder 5 is relatively rotated in the outer cylinder 2 by inserting the cap into the key hole 4, the locking bar 6 due to the wedge action between the cam groove 1 and the locking bar 6 occurs. ) Can be moved in the inner cylinder central axis direction, in other words, the cylinder lock is in the unlocked state, and the inner cylinder 5 rotates in the unlocked direction.

In addition, in the conventional lever tumbler lock, the tail plug 14 (see FIG. 1) in which the plurality of partition plates 3 and 3, the key guide 12 and the tail piece 13 are mounted is shown in FIG. The inner cylinder 5 is constituted by integrally coupling with the retainer 15 and the second retainer (not shown) which is face-symmetrical with the first retainer 15.

That is, the retainer 15 is a plate member which forms a part of the cylinder to form the fall prevention flange 16 at the front end, and at the same time the plurality of longitudinally elongated rectangular receiving holes 17 and 17 are formed along the bus bar. The insertion member 18 (refer FIG. 4) formed in the outer periphery of the partition board is inserted into each storage hole 17 except the storage hole 17 which is farther from the flange 16, and is not shown on the opposite side. The plurality of partition plates 3 and 3 are integrally joined together with the second retainer.

An insertion member (not shown), such as the insertion member 18 formed on the outer circumferential surface of the key guide 12, is inserted into the storage hole 17 closest to the flange 16. Attach the tail plug 14 (see FIG. 1) to the inner end (right end in FIG. 3), and fit the inner cylinder configured in this way with the outer cylinder 2 to keep the inner cylinder 5 wrapped so as not to disassemble. do.

Moreover, the inner end part of the inner cylinder 5 is equipped with the thick annular stopper plate 19 which has a fall prevention function like the flange 16 of the retainer 15, and is fixed by the fixed wheel 21. As shown in FIG.

In Fig. 4, reference numeral 22 denotes a guide groove for the locking bar 6 formed in each partition plate.

The lever tumbler lock configured as described above, of course, exhibits a desired function, and in particular, since the locking bar 6 exhibits a feeling of click when the inner cylinder rotates, the feeling is excellent and the picking is difficult, so it is often used as a lock for a door of a house. It is used.

However, on the other hand, since the shape of the lever tumbler 11 is substantially C-shaped, the rigidity is relatively small, and it cannot be said that there is no case of deforming when turning the other key with a strong force.

Further, since the key groove is formed at the edge of the side end of the main body portion (hereinafter referred to as a blade) to be inserted into the key hole of the key, it is not possible to increase the number of key groove forming portions, thus limiting the number of key differences.

Moreover, since the cross-sectional shape of the key is asymmetrical, there is still room for improvement, for example, it is impossible to make a so-called reversible key that can be inserted into the keyhole regardless of the front and back of the blade.

Therefore, an object of the present invention is to provide a new rotary disk tumbler lock and a key thereof, in which the stiffness of the tumbler is large, strong, and reversible.

In order to achieve the above object, the invention described in claim 1 provides an outer cylinder in which a cam groove is formed along a busbar of an inner circumferential surface, and a plurality of partition plates stacked in the center axis direction through a gap to be rotatably fitted to the outer cylinder. At the same time, the inner cylinder penetrates the key hole along the center axis, and extends along the busbar of the inner cylinder, and is radially movable in the outer circumferential portion of the inner cylinder, and an outer edge engaging the cam groove protrudes outward. An annular rotary disc tumbler having a locking bar pushed in the direction and having a key insertion hole of a size capable of enclosing a key hole in each slot between the partition plates. One place of a substantial part is pivotally supported by a support shaft penetrating the inner cylinder in the axial direction. At the same time, a locking projection is formed at the outer periphery of the rotary disc tumbler, while the movement projection of the distal end at the inner periphery of the key insertion hole interferes with the blade flat portion or the end edge of the tuck inserted into the key hole. The rotary disk tumbler is integrally mounted, and the respective rotary disk tumblers are pressed in the direction in which the engaging projection is close to the clasp, and are usually held by a backup pin penetrating the inner cylinder in the axial direction. When each of the engaging projections engages with corresponding recesses formed in the blades of the pawls inserted into the keyholes, the lock cutouts of each rotary disc tumbler are adapted to mate with the inner edge of the locking bar.

Moreover, the invention of Claim 2 provides the outer cylinder which formed the cam groove along the busbar of the inner peripheral surface, and the several partition boards rotatably fitted to this outer cylinder, and laminated | stacked in the center axis direction via the clearance gap, and installed in the center axis line. Therefore, the inner cylinder penetrates the key hole, and the lock extends along the busbar of the inner cylinder, and is guided so as to be movable in the radial direction at the outer circumferential portion of the inner cylinder and pressed in the direction in which the outer edge engaging the cam groove protrudes outward. An annular rotary disc tumbler having a bar and having a key insertion hole of a size capable of enclosing a key hole in each center between the partition plates is inserted into the slot, and one place of an actual portion of the rotary disc tumbler is installed. And pivotally supporting the inner cylinder rotatably on a support shaft penetrating in the axial direction. A locking cutout is formed at the outer periphery of the scumbler, while the engaging projection interfering with the blade flat portion or the end edge of the side of the key inserted into the keyhole is installed integrally at the inner periphery of the key insertion hole. Each rotary disk tumbler is pressed in the direction in which the engaging projection is close to the abut, and is normally held by a backup pin penetrating the inner cylinder in the axial direction, and on the other hand, each of the engaging projections of the plurality of rotary disk tumblers. When engaged with the corresponding recess formed in the blade of the pawl inserted into the keyhole, it is the pawl of the rotary disc tumbler lock which allows the release cutout of each rotary disc tumbler to mate with the inner edge of the locking bar, and inserted into the keyhole. To the tip of the engaging projection of the rotary disc tumbler when A blade-shaped recess of a predetermined depth with a bottom is formed in the blade portion, and when the recess is engaged with a corresponding engaging protrusion, the unlocked cutout portion of each rotary disk tumbler is matched with the inner edge of the locking bar. do.

Hereinafter, the present invention will be described with reference to Figs.

A large difference between the conventional lever tumbler lock shown in FIGS. 1 to 4 and the rotary disk tumbler lock according to the present invention is that the tumbler is annular in shape and the flat portion of the hinge instead of the key groove of the side edge of the blade and It is two points of what provided the recessed part in the edge part of an edge part.

That is, Fig. 5 shows a slot 7 of a rotary disc tumbler lock according to an embodiment of the present invention, which slot 7 is a retainer 15 with a flange 16, like a slot of a conventional lever tumbler lock. It is formed between the plurality of partition plates (3, 3) coupled to each other by).

Further, the key hole 4 formed along the central axis of the inner cylinder is sandwiched therebetween, so that the support shaft 23 is upper in the upper part, the backup pin 8 is lower in the lower part, and the inner cylinder 5 is in the key hole in FIG. It is provided to penetrate in parallel (refer FIG. 1).

In addition, although the cross-sectional shape of the backup pin 8 shown in FIG. 5 is a shape which chamfered the upper corner part of a vertically long rectangle unlike FIG. 1, the shape of this backup pin 8 is a summary of this invention. No round bar may be used as shown in FIG.

In addition, although the key | hole 24 of the same cross-sectional shape is inserted in the key hole 4 of cross-sectional shape as shown in FIG. 5, the cross-sectional shape of these key hole 4 or the key | claw 24 is a summary of this invention. no.

In the illustrated embodiment, the cross-sectional shape of the keyhole 4 is complicated as shown, in addition to the purpose of increasing the number of so-called words to increase the key difference, the picking tool in the keyhole 4 This is to make operation difficult.

In addition, the point-symmetry of the cross-sectional shape of the keyhole 4 (cylinder 24) with respect to the center axis of the inner cylinder 5 is what is called a so that a key can be inserted into the keyhole 4 irrespective of the front and back of a side key. To do this with a reversible key.

And the latch 24 used for time-locking operation of the rotary disk tumbler lock by this invention is a main-body part (henceforth simply a blade) inserted into the keyhole 4 as shown to FIG. 6 and FIG. The tip portion of is formed into an arc shape and chamfered, and a concave portion 25 is formed at predetermined portions of the flat portion shown in FIG. 6 and the end edge portion shown in FIG.

The cross-sectional shape of the recess 25 is, for example, as shown in dashed lines in the cross-sectional shape of the hatch 24 not hatched for clarity as shown in FIG. And a bottomed inverted trapezoid as shown in FIG. 7, and there are a plurality of types of depths (four types in the illustrated embodiment).

The formation position and depth of the said recessed part 25 are demonstrated once again in connection with the rotary disk tumbler mentioned later.

On the other hand, in the conventional so-called lever tumbler lock, disk tumbler lock, or pin tumbler lock shown in Figs. 1 and 2, a V-shaped key groove is formed at the side edge of the blade, and it is already known that it is not a recess. As shown.

In Fig. 5, the parts denoted by the same reference numerals as Fig. 1 and Fig. 2 represent equivalent parts to each other, so that further detailed description thereof will be omitted.

On the other hand, in each of the slots 7 and 7, an annular rotary disc tumbler having a key insertion hole 26 having a size capable of enclosing the key hole 4 in the center as shown in FIG. 27) is inserted.

Here, the meaning that the rotary disc tumbler 27 is annular means that the actual portion of the rotary disc tumbler 27 surrounding the key insertion hole 26 forms a closed curve, and the external shape of the rotary disc tumbler 27 is illustrated. It is approximately circular as shown.

Each rotary disk tumbler 27 is pivotally supported by one support shaft 22 at one place (upper end in the illustrated embodiment) of the substantial portion.

Then, both the inner edge and the outer edge of the free end (lower end in Fig. 8) of the rotary disc tumbler 27 are formed in an arc shape centering on the support shaft 22.

Further, for example, a rectangular unlocked cutout 9 is formed at a predetermined angle position of the free end outer edge (outer peripheral portion) of the rotary disc tumbler 27.

There are four types of angular positions of the unlocked cutouts 9 depending on the depth of the recess 25 of the clasp, thereby obtaining a key difference of the rotary disk tumbler lock.

In addition, the inner edge of the free end of the rotary disk tumbler 27 is formed so as to rub the lower end of the backup pin 8, and the locking step 28 is formed at the left end of FIG.                     

In addition, this locking step part 28 may be a projection which is not a step part, of course.

On the other hand, at the edge of the opening end (inner periphery) of the key insertion hole 26, as shown in Fig. 8, the engaging projection 29 in which the movement trajectory of the tip portion interferes with the plane of the blade of the hinge 24 is integrally formed. It is installed to protrude.

In addition, as shown in Fig. 9, the engaging projection 29 may be protruded by shifting the protruding position so that the movement trajectory of the tip portion interferes with the edge edge of the blade.

And each rotary disk tumbler 27 is pressed in the direction in which the engaging protrusion 29 is close to the latch 24 by the elasticity of the tumbler spring 31 by a thin leaf spring similarly to the conventional lever tumbler lock. have.

As shown in Figs. 8 and 9, when the latch 24 is not inserted into the keyhole 4, the locking step 28 of each rotary disk tumbler 27 is connected to the backup pin 8. Locked in elastic contact, each rotary disk tumbler 27 is locked at an angular position shown in FIGS. 8 and 9.

However, when the key 24 is inserted into the key hole 4 and the engaging projection 29 of each rotary disk tumbler 27 is caught in the recess 25 of the corresponding key, Figs. As shown, the engagement projections 29 are projected and recessed so that the unlocking cutouts 9, 9 of the entire rotary disc tumbler 27, 27 mate with the inner edges of the locking bar 6. The angular position of the depth and the unlocking notch 9 is set.

In the illustrated embodiment, the protrusion amount of the engaging projection 29 is made constant, in other words, the position of the tip of the engaging projection 29 is made constant with respect to the center of the support shaft 23, and the engaging projection ( 29, when the front end portion is caught in the blade recessed portion 25 of the hinge and contacts the bottom surface, the swing angle of the rotary disk tumbler 27 is changed in accordance with the depth of the recessed portion 25, and FIG. The selected one of the plurality of unlocking cutouts 9 and 9 shown is to be matched to the inner edge of the locking bar 6.

In the rotary disc tumbler lock according to the present invention, like the conventional lever tumbler lock, the rotary disc tumblers 27 adjacent to each other are preferably arranged such that the engaging projection 29 is symmetrical.

The reason for this is to lengthen the mutual spacing between the recesses 25 and 25 of the tabs through which the engaging projections are engaged, and to prevent the adjacent recesses from interfering, especially when the recesses are deep.

In the rotary disc tumbler lock according to the embodiment of the present invention configured as described above, when the key 24 is not inserted into the key hole 4 or when a key different from the key is inserted into the key hole 4. At least one unlocking notch 9 of the rotary disc tumbler 27 is angularly displaced from the inner edge of the locking bar 6 (see FIGS. 8 and 9).

When the inner cylinder 5 is to be turned in this state, the locking bar 6 is pushed out of the cam groove 1 by the wedge action between the locking bar 6 and the cam groove 1, but the action is The inner cylinder 5 cannot be turned because it is blocked by the outer edge of the free end of the rotary disk tumbler 27. In other words, this rotary disk tumbler lock is not unlocked.                     

On the other hand, when the key 24 is inserted in the key hole 4, as described above, and as shown in Figs. 10 and 11, the unlocked cutout portions 9 of the rotary disc tumblers 27 and 27 are shown. 9) mate with the inner edge of the locking bar.

When the inner cylinder is turned in this state, as in the conventional lever tumbler lock, the inner cylinder center axis of the locking bar 6 can be moved by the mutual rotation of the inner cylinder 5 and the outer cylinder 2, and the rotary disc tumbler lock Will be released.

In addition, when inserting the key and other key into the key hole, the portion without the recess of the blade engages with the engaging projection 29, and even if the engaging projection 29 retracts from the key hole 4, as shown in FIG. As mentioned above, it is assumed that the size and the opening position are set so that the key insertion hole 26 does not interfere with the key hole 4.

In addition, in the locking state shown in Figs. 8 and 9, the force for turning the inner cylinder acts in the direction of pushing the locking bar 6 upward, so that the friction between the rotary disc tumbler 27 and the backup pin 8 is reduced. In the case where a gap is provided between the two as shown in order to smoothly shake the electrons, the force is supported by the support shaft 23.

This is not a problem in operation, but if the force is to be distributed and supported on the backup pin 8, for example, a support shaft hole that fits with the support shaft 23 of the selected or all-rotary disk tumbler 27 can be used. It is good to make a long hole vertically.

In this case, when the rotary disc tumbler 27 receives the force from the locking bar 6, the rotary disc tumbler 27 moves upward, and the free end thereof contacts the backup pin 8 so that the backup pin loads the backup pin. Supported on.

In addition, this invention can be variously modified and implemented, without being limited to the Example shown.

For example, in the above description, the rotary disk tumbler 27 which searches for the recess 25 of the edge portion of the blade shown in Figs. 9 and 11 is used in the same manner as searching for the recess of the blade plane portion. Since the edges of the edge can adopt only two types of thin and concave depths, for example, it is easy to keep the key run when used for other purposes.

That is, the rotary disc tumbler lock having only the rotary disc tumblers 27 and 27 of the type for searching the concave portions 25 and 25 formed in the end edge portions of the blade shown in FIG. And a tumbler which searches for the recess formed in the edge part of the said blade in common, and sets the tumbler which searches for the recess of the flat part of a blade differently, and makes it the key difference.

Then, each occupant can unlock the lock of his room and the common door opening with one key, and can configure what is called a reverse master key device.

In this case, since the tumbler does not need to be taken out from the plane of the blade for the reverse master key device, in other words, all the rotary disk tumblers corresponding to the recesses formed in the plane can be used for the difference of the resident keys. Increases significantly.                     

On the other hand, although a conventional lock, for example, a lever tumbler lock or a disk tumbler lock, it is possible to configure a reverse master key device, but a conventional lock can replace a tumbler for use in key difference for a reverse master key device. Therefore, the difference in the resident key is reduced.

In the above description, the protrusion amount of the engagement protrusion 29 of the rotary disc tumbler 27 is made constant, and the swing angle of the tumbler is changed according to the depth of the recessed portion of the hinge, but this is the protrusion amount of the engagement protrusion 29. May be changed depending on the depth of the recess 25.

At this time, for example, if the protrusion amount of the engaging projection 29 is increased when the recessed part 25 is deep, the swing angle of the tumbler can be made the same even if the depth of the recessed part changes, so that the unlocked cutout part 9 (Fig. Even if the angular position of Fig. 8 is the same, it is possible to obtain the same number of keys as the rotary disc tumbler lock according to the illustrated embodiment.

Fig. 13 shows another embodiment of the present invention as set forth in claim 1, which moves the position of the support shaft 23 in a direction away from the inner cylinder central axis, and the support shaft 23 and the locking bar 6 In other words, the so-called vertical insertion is made so that the cross-sectional shape of the side lock 24 can be inserted into the key hole 4 with the long side vertically.

In Fig. 13, portions denoted by the same reference numerals as those in the other figures indicate portions equal to each other.

By configuring in this way, at least the type of lock can be doubled, and the lock which is easy to operate ergonomically can be selected according to the customer's preference.

In addition, since the distance between the support shaft 23 and the unlocking cutout 9 increases, when the position of formation of the engaging projection 29 is moved in a direction close to the support shaft 23, the depth of the concave portion 25 is slightly increased. Even with this change, there is another advantage that the moving distance of the unlocking cutout 9 can be increased and the identification sensitivity of the hinge can be improved.

Fig. 14 shows a rotary disk tumbler lock according to one embodiment of the invention as claimed in claim 3, wherein this embodiment has a spring support shaft (parallel with them on the opposite side to the backup pin 8 with respect to the support shaft 23). 32) is provided, and each rotary disk tumbler 27 is pressed by the tumbler spring 31 as a torsion coil spring.

In this case, the coil portions of the respective tumbler springs 31 are wound and mounted on the spring support shafts 32, and the tip portions of the respective springs connected to the coil portions are bent in opposite directions and in the paper surface direction to form a tumbler spring ( 31 can be accommodated in the narrow slot 7.

When the tumbler spring 31 is used as a torsion coil spring and the spring support shaft 32 is inserted into the coil portion, one end of the elongated spring plate is rounded like the conventional tumbler spring 31 (see FIGS. 8 and 9). As a result, the tumbler spring can be removed and the rotary disc tumbler lock can be completely prevented from being malfunctioned as compared with the mounting method that fits into the same hole of the rotary disc tumbler 27.

 As apparent from the above description, the present invention has an annular shape of the tumbler, so that the rigidity of the tumbler can be significantly improved as compared with the conventional lever tumbler lock, and the strength and safety as the lock can be improved.

In addition, unlike the clasp in the conventional lever tumbler lock, the key difference is obtained by the depth of the recess rather than the V-shaped key groove formed at the edge portion of the blade, so that it is adjacent to one recess 25. The spacing of the other recesses 25 can be made shorter than the spacing between the conventional key grooves.

In other words, the number of tumblers can be increased in the inner cylinder of which the outer dimensions are restricted according to the standard, and the key difference can be increased by that much. For example, in the conventional lever tumbler lock, only seven tumblers were entered, but in the rotary disc tumbler lock according to the present invention, 11 sheets were inserted (see Fig. 6).

In addition, a recess can be formed not only in the flat portion of the blade but also in the end edge portion, and if the reverse master key device is formed in the common door opening of the mansion, for example, the recess key can be used. The difference can be significantly increased compared with the conventional one.

In addition, even when the protrusion amount of the engaging projection of the rotary disk tumbler is fixed or changed, the center position is slightly changed in the width direction of the blade or in the width direction of the end edge of the blade, depending on the depth of the recess. Since it has to be made, it is difficult to duplicate an accessory, and various effects are exhibited, such as the safety as a lock.

Claims (3)

The outer cylinder 2 in which the cam groove 1 was formed along the bus bar of the inner circumferential surface, and the plurality of partition plates 3 and 3 which are rotatably fitted to the outer cylinder 2 and laminated in the center axial direction through the gap are provided. At the same time, the inner cylinder 5 which penetrates the key hole 4 along the center axis line, extends along the busbar of this inner cylinder, is guided so that a radial movement is possible in the outer peripheral part of the inner cylinder 5, and the said cam groove ( The outer edge engaging with 1) has a locking bar 6 pressed in a direction projecting outward, and in each slot 7 between the partition plates 3, 3, a key hole 4 is enclosed in the center. Supporting shaft which inserts the annular rotary disk tumbler 27 which provided the key insertion hole 26 of the magnitude | size which can be made, and penetrates the inner cylinder 5 in the axial direction through one place of the substantial part of the said rotary disk tumbler. Pivotally supported on 23 and at the same time A blade flat portion or end edge portion of the tab, in which a disengagement cutout 9 is formed at the outer periphery of the rotary disk tumbler, while the movement trajectory of the distal end is inserted into the keyhole 4 at the inner periphery of the key insertion hole 26. The projections interfering with each other are integrally provided, and the rotary disc tumblers 27 are urged in the direction in which the coupling projections 29 are close to the hinges 24. On the other hand, the latch 24 which is locked to the backup pin 8 penetrating in the axial direction and on the other hand, each of the engaging projections 29 and 29 of the plurality of rotary disk tumblers 27 and 27 is inserted into the key hole 4. Rotary disc, characterized in that when engaged with the corresponding recesses 25 formed in the blades of the blades, the release cutouts 9 of the respective rotary disc tumblers 27 mate with the inner edges of the locking bar 6. Tumbler lock. The outer cylinder 2 in which the cam groove 1 was formed along the bus bar of the inner circumferential surface, and the plurality of partition plates 3 and 3 which are rotatably fitted to the outer cylinder 2 and laminated in the center axial direction through the gap are provided. At the same time, the inner cylinder 5, which penetrates the key hole 4 along the center axis line, extends along the busbar of the inner cylinder 5, is guided to be movable in the radial direction at the outer periphery of the inner cylinder 5, and The outer edge engaging with the cam groove 1 has a locking bar 6 urged in a direction projecting outward, and in each slot 7 between the partition plates 3, 3, a keyhole 4 in the center portion. Supporting shaft which inserts the annular rotary disk tumbler 27 which formed the key insertion hole 26 of the magnitude | size which can surround (), and penetrates one place of the substantial part of the said rotary disk tumbler in the axial direction. While pivotally pivotally supporting 23 On the outer periphery of the rotary disk tumbler, a detent cutout 9 is formed, while the movement trajectory of the tip at the inner periphery of the key insertion hole 26 interferes with the blade plane or end edge of the tab inserted into the key hole. The engaging projection 29 is integrally provided to protrude and the respective rotary disk tumblers 27 are pressed in the direction in which the engaging projection 29 approaches the abutment 24, and the inner cylinder 5 is usually in the axial direction. On the other hand, the blade of the tab 24 which is engaged with the backup pin 8 penetrating, and each of the engaging projections 29 and 29 of the plurality of rotary disk tumblers 27 and 27 is inserted into the key hole 4. When engaged with the corresponding recess 25 formed in the recess, the unlocking cutout 9 of each rotary disc tumbler 27 is an axle of the rotary disc tumbler lock, which matches the inner edge of the locking bar 6, and the key Have been inserted into the hole When the blade portion mates with the tip of the engaging projection 29 of the rotary disk tumbler 27, a recessed recess 25 having a predetermined depth with a bottom is formed, and the recess 25 corresponds to a corresponding coupling. Locking key for rotary disc tumbler, characterized in that when engaged with the projection (29), the unlocking notch (9) of each rotary disc tumbler (27) mate with the inner edge of the locking bar (6). The rotary disk tumbler lock of claim 1, wherein the rotary disk tumbler is pressed by a torsion coil spring.

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