KR930002975Y1 - Cylinder construction of lock - Google Patents

Abstract

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Description

Key Cylinder Assembly for Lock

1 is an exploded perspective view of the present invention.

2 is a prefabricated longitudinal cross-sectional view of FIG.

Figure 3a is a cross-sectional view showing a state in which the key is inserted to release the lock of the present invention, (b) is a cross-sectional view showing the relationship between the locking bar and the locking block when releasing the lock of the present invention with a true key, (c) Sectional view showing a state in which the release operation of the lock of the present invention is completed, (d) is a cross-sectional view showing the relationship between the locking bar and the locking block when releasing the lock of the present invention with a pseudo key.

Figures 4a to (f) is a front view showing various embodiments of the locking groove of the locking disk of the present invention.

5 is an operating state diagram of the second opening of the annular projection and the dial hook.

* Explanation of symbols for main parts of the drawings

1: key cylinder assembly 2: housing

3: key cylinder 3a: key groove

4: disk unit 5: locking block

6: Dial device 7,8: 1st, 2nd support disk

10: locking bar 11: connecting rod

12: locking piece 12a: locking projection

13: locking groove 13a: first locking groove

13b: 2nd locking groove 14: locking groove

15: opening 16: locking disc

17: spacer ring 18: annular projection

19,20: 1st, 2nd stop protrusion 22: Dial knob

23: disk 24: spacer

25: key 26: dial hook

27: compression spring 28: key

The present invention relates to a key cylinder assembly for a lock, and more particularly to a lock column cylinder assembly that can be released by any one of the keys or dials in addition to the simple locking configuration is not released.

In general, a lock includes a cylindrical lock in which a plurality of locking pins are arranged in a cylindrical shell, and the key is inserted into the key groove so that the lock is released while the lock pin is aligned according to a pattern formed on the key. A plurality of locking discs, each having a locking groove formed at a predetermined position on the circumferential surface thereof, are combined and arranged so that the locking grooves can be released while the locking hooks are released when the locking grooves coincide with each other. There is a mold lock.

However, when the cylindrical lock is inserted into a similar key or a pin with a hook into the key groove, the locking state of the lock may be released if it is properly operated. When manufacturing components, there is a problem that the manufacturing process is difficult due to the high precision required such as the extremely small tolerance. In addition, the reliability of the lock function is limited in structure, and in the case of a dial lock, it is a special use such as a safe. Except for the lock, there is a drawback that it is extremely limited in use due to the trouble of use.

In order to solve this drawback, the applicant has proposed a structure of a lock key cylinder that can be used in combination with a cylindrical lock and a dial lock in Patent Application No. 90-2340. It is possible to make sure that the lock is released randomly by a similar key as well as to solve it in case of malfunction, but it is not only difficult to manufacture due to its complicated configuration, but also expensive to manufacture. There is a drawback.

The present invention has been devised to solve the above-mentioned shortcomings, and it is easy to manufacture as well as preventing the malfunction of the lock as well as preventing the locking state from being released arbitrarily. It is an object of the present invention to provide a key cylinder assembly that can be released.

The present invention for achieving the above object, the first and second disk-shaped disc formed in the circumferential predetermined position on the key cylinder formed in the longitudinal direction through the key groove in the cylindrical housing formed with a dial scale on one side of the circumference The support disk is fixedly installed at regular intervals, and the recesses of the first and second support disks are mounted to rotate the U-shaped locking bar via the connection rods, and the hooking protrusion is formed on one side of the connection rods. As the piece is fixedly installed, the coil spring and the leaf spring having a spring constant greater than twice as large as the coil spring are coupled to both sides of the locking piece so that the operation of the locking piece is made elastically, between the first and second supporting disks. The first and second locking grooves having a height h or 2h are formed at predetermined positions on the circumference, and the key pattern is applied to the center. While the locking groove is formed to be caught so that a plurality of locking discs are arranged at a predetermined interval through the spacer ring, the first and second stop projections to selectively engage the engaging projection of the locking piece on the outside of the first support disk; With a known dialing device consisting of a plurality of disks, a locking block having annular projections with predetermined first and second openings is connected and installed, and for operating a spring-loaded dial hook to operate the locking block separately. Consists of.

The present invention configured as described above, when the key cylinder is rotated by inserting the key into the key groove, the locking bar elastically installed in the recessed portion of the first and second support disks are rotated together to correspond to the pattern of the key is selected locking Since the disk is elastically lowered while being inserted into the arranged second locking groove (depth of about 2h), the locking projection of the locking piece integrally formed with the locking bar is lowered through the first opening of the annular protrusion of the locking block. As the locking block is rotated by the second stop projection, the locking block is rotated to release the lock.

Then, when the key cylinder is rotated in the opposite direction to remove the key from the key groove with the lock released, the locking bar is integrally connected with the first and second supporting disks and the locking disks and locking bars arranged therebetween. Since the locking projection of the locking piece is elastically pulled out to the original position through the first opening of the annular projection by the elastic force of the leaf spring, the locking block is returned to the original position along with the key cylinder by being caught by the second regular projection and rotating it. The key can be extracted from the key cylinder.

On the other hand, if a similar key is used, the locking disk selected will be different because the key pattern is different, so that the locking bar cannot be lowered by a predetermined height (2h), so that the locking block cannot be rotated and the lock will not be released. Even if you rotate the reverse will not be able to pull the key.

Therefore, in the present invention, when the dial device mounted on the outer key cylinder of the first support disk is operated to release it, that is, when the dial knob is rotated to match the unique number, the groove of the dial disk is released. As the dial hook is lowered while being aligned in a straight line, the dial hook is advanced through the groove of the dial disc in which the dial hook is aligned by the spring elastic force, and the front end portion thereof is caught by the second opening of the annular protrusion of the locking block. Accordingly, when the dial knob is rotated in the clockwise direction, the locking hook is rotated while the dial hook is caught in the second opening, thereby releasing the lock. Then, when the dial knob is rotated counterclockwise, the first and second parts are rotated. The backing disk and the locking disk rotate smoothly in the opposite direction and return to their original positions, so that the key can be extracted from the key cylinder.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The key cylinder assembly 1 of the present invention is mounted inside the lock (not shown), and fixed to the lock body as shown in FIGS. A key cylinder 3 formed so as to be inserted into the housing 2 having an individual portion 2b formed therein so that the key groove 3a penetrates in the longitudinal direction, and a disc unit fitted to the outer circumferential surface of the key cylinder 3 ( 4) and a locking block 5 provided with an operation plate 5a for releasing the lock of the lock at the back while being connected to and selectively interlocked with one side of the disc unit 4 and the disc unit 4 It consists of a dial device (6) connected to the other side of the.

Here, the disk unit 4 is a disk-shaped first and second supporting disks having recesses 7a and 8a respectively formed at predetermined positions on the circumference thereof while being fixedly fixed to the key cylinder 3 at a predetermined interval. (7,8) is provided, and the second support disk (8) is provided with an inner hole (8b) formed in the radial direction so that the inner hole (8b) is fitted to the front end of the key cylinder (3) to be fixed have.

Meanwhile, the locking bar 10 having a U-shape is provided with a U-shaped locking bar 10 in the first and second support disks 7 and 8 to partially recess the recessed portions 7a and 8a in the radial direction. It is installed so that it can be rotated to the two support disks (7, 8), one end of the connecting rod (11) passes through the second support disk (8) so that the cross section at the front end of the locking projection (12a) The locking piece 12, which protrudes) is integrally fixed so that the locking piece 12 is rotated together with the locking bar 10 within a predetermined angle range, and one end portion and the middle portion of the locking piece 12 are rotated. The leaf spring 12b and the coil spring 12c are adapted to assist the rotation of the locking piece 12, where the spring constant of the leaf spring 12b is greater than the spring constant of the coil spring 12c. It is supposed to have a value more than twice.

In addition, on the outer circumferential surface of the key cylinder 3 between the first and second support disks 7, 8, a plurality of locking grooves 13 having a depth of h or 2 h in a radial direction at a predetermined position on the circumference are 1 A plurality of grooves are formed in the form of a dog or two, and each of the locking grooves 14 are formed at the center thereof so as to be caught by the pattern protrusion of the key, which will be described later. The locking disc 16 is arranged in an array. A ring-shaped spacer ring 17 twisted by an elastic material is inserted between the locking discs 16 so that the adjacent locking discs 16 may smoothly operate while holding each other with an appropriate elastic force on the key cylinder 3.

However, as shown in FIG. 4, the locking groove 13 formed in the locking disc 16 has a first locking groove 13a having a depth h and two types of second locking grooves of h and about 2h ( 13a, 13b, and by increasing or decreasing the number of these locking discs 16 or arbitrarily selecting the position of the second locking groove 13b, the locking bar (b) in the second locking groove 13b is changed. It is possible to have various kinds of key patterns for inserting 10).

Meanwhile, a cylindrical locking block configured to release the lock while operating in combination with the locking protrusion 12a of the locking piece 12 integrally coupled with the locking bar 10 from the outside of the second support disk 8 ( 5, an annular projection 18 having a predetermined length of first and second openings 18a and 18b is formed on one side thereof, as shown in FIGS. 1 and 3, wherein the first opening ( 18a is formed to have a length slightly larger than that of the first and second locking grooves 13a and 13b of the locking disc 16, while the second opening 18b is shown in FIG. One side becomes the vertical surface 18b ₁ and the other side becomes the inclined surface 18b _{2. When the} dial hook 26 pushes the vertical surface 18b ₁ , the lock is released, while the dial hook 26 is inclined surface ( 18b ₂₎ When the dial is to be moved toward the hook (26) being facing away from the inclined surface (18b ₂₎ Therefore, the second opening (18b) There.

In addition, the cross section of the annular protrusion 18 may have a cross-section such that the locking protrusion 12a of the locking piece 12 is selectively engaged at a predetermined position within and outside the boundary of the first opening 18a. The first and second stop protrusions 19 and 20 of the triangular cross-section formed side by side in contact with the parallelogram engaging protrusion 12a are formed to face in opposite directions to each other, and the first and second stop protrusions 19 and 20 respectively. ) And the gap between the annular projections 18, the height difference of the second locking grooves (13a, 13b) formed in the adjacent locking disk 16 while allowing the locking projection (12a) of the locking piece 12 to pass through, In other words, if the lock is released by the key, as the second locking groove 13b having a depth of 2h of the selected locking disk 16 is aligned with each other, the locking bar 10 is inserted into the locking piece connected thereto. The locking projection 12a is lowered by a height of 2h together with the stiffening protrusion 12a of (12). Is engaged with the inclined side wall portions (20a) of the projections 20 is to rotate the locking block (5) is such that the lock is released in accordance with rotating the key cylinder (3).

On the other hand, if the lock is to be unlocked with a pseudo key, the selected locking discs 16 are arranged in a mixture of the second locking grooves 13b of heights h and 2h, even if they are aligned, but the locking bar 10 is connected thereto. Since only the height h with the locking protrusion 12a of the locking piece 12 can be lowered, even if the key cylinder 3 is rotated, the locking protrusion 12a is the inner surface of the annular projection 18 and the second stop protrusion. Positioned in the space between the (20) is turned out so that the locking block (5) can not be rotated so that the lock is not released.

On the other hand, the dial device 6 has a configuration similar to that of a known dial device mounted in a cabinet or a safe, that is, as shown in FIGS. 1 and 2, the outer side of the first support disk 7. The groove on the circumference is rotated on the outer circumferential surface of the large-diameter bushing 21 integrally fixed on the side key cylinder 3 while being rotated by a rotation operation other than the dial knob 22 integral with the key cylinder 3. A plurality of disks 23 formed with 23a are provided with respective spacers 24 interposed therebetween, and one side of the bushing 21 of the key cylinder 3 is provided with a groove 25 in the longitudinal direction. The lower surface of the disk 23 is provided with a plurality of protrusions 26a which are installed in the groove 25 and fitted into the recess 23a, and extend long to penetrate the opening 15 of the locking disk 16. Dial hook 26, which is brought into contact with the locking block 5, by means of the first Among is a resilient structure provided by the compression spring 27.

Next will be described the effect of the present invention configured as described above.

First, the lock is released with the soothing key 28 and the operation will be described. When the key 28 is inserted into the key groove 3a of the key cylinder 3 and then rotated, the locking disc 16 on which the catching groove 14 is caught corresponding to the pattern of the key 28 is selected. Will rotate. At this time, the total number of the selected locking discs 16 is equal to the number of the protrusions 28a forming the pattern of the key 28. That is, if the protrusions 28a are one, one locking disc 16 If two projections 28a are selected, two locking discs 16 are selected. For convenience of description, in the present embodiment, the first locking groove 13a is formed as shown in 4a, b, and c. 2 is provided with a disc shaped first locking disc 16 ₁ having a second locking groove 13b having a depth of 2 h, a first locking groove 13a having a predetermined depth, and a second locking groove 13b having a depth of 2h. Two second and third locking discs 16 ₂ and 16 ₃ were used, and the second and third locking discs 16 ₂ and 16 ₃ were selected and hung using two projections 28a of the key 28. An example of the case where the operation is caused by the loss of operation is described.

A second locking disc 16 ₂ each having a second locking groove 13b having a groove depth of 2h, as shown in Figs. 4b and c, respectively, using a key 28 having two projections 28a; If it is assumed that the third locking disk 16 ₃ is locked and rotated, the key 28 is rotated by rotating the key 28 in the key groove 3a as described above. ) And the locking bar 10 provided in the recesses 7a and 8a formed therein are arranged on the circumference of the first locking disk 16 ₁ together with the second and third locking disks 16 ₁ and 16 ₂ . Will rotate.

In this case, the locking bar 10 rotates together with the first and second support disks 7 and 8 in the inner circumferential surface of the housing 2 as the key cylinder 3 is rotated together with the locking piece 12, and then the third bar 3a. As shown in FIG. 2B, when the leaf spring 12b returns to the inside of the opening 2b of the housing 2, the locking projection 12a of the locking piece 12 is annular due to the elasticity of the coil spring 12c. It descends into the first opening 18a of the protrusion 18 and is caught by the side wall portion 20a of the second stop protrusion 20.

When the key cylinder 3 is continuously rotated as the key 8 in this manner, the rotational force of the key cylinder 3 is applied to the locking block 5 via the locking projection 12a and the second stop projection 20. Since it rotates to the state of FIG. 3c, the operation plate 5a connected to the back of this locking block 5 is rotated, and the lock state of the lock is released.

At this time, the leaf spring 12b formed on the locking piece 1 exerts a force to rotate the locking piece 12 to its original position, but the locking projection 12a of the locking piece 12 is the second stopping protrusion. It becomes in the state caught by the inclined side wall part 20a of 20, and the said latching protrusion 12a does not rise.

In this state, when the key cylinder 3 is rotated in reverse to remove the key 38 from the key groove 3a, the spring constant of the leaf spring 12b is larger than the spring constant of the coil spring 12c. Since the locking projection 12a of the locking piece 12 is pressed against the side wall portion 20a of the second stop projection 20 of the locking block 5 by the restoring force of the leaf spring 12b. After the separation, the locking protrusion 12a is pulled out through the first opening 18a and caught by the first stopping protrusion 19 of the locking block 5 as shown in FIG. 3d. In this state, when the key cylinder 3 is continuously rotated counterclockwise, the locking projection 12a of the locking piece 12 is caught in the first stopping projection 19 of the locking block 5. While rotating the locking block 5 counterclockwise, the locking bar 10 and the first and second support disks 7, 8 are returned to their original positions in FIG. 3a.

At this time, if the key 28 has the same pattern as that of the true key, and is a pseudo key in which the thickness of the protrusion 28a of the key pattern is thin, the key cylinder 3 is used to rotate the key cylinder 3 using the pseudo key. (3a), the pattern of the similar key is loosely fitted into the locking groove 14 of the locking disk 16, slightly twisted by the small angle, that is, the difference in the thickness of the key pattern, and then the locking disk 16 is rotated. As a result, the locking disk 16 rotates together with the first and second supporting disks 7, 8 and the locking bar 10 with a slight phase difference. Therefore, since the second locking grooves 13b of these locking discs 16 do not coincide in a straight line, the locking bar 10 can no longer be lowered into the second locking grooves 13b. ) And the locking protrusion 12a of the locking piece 12 connected through the connecting rod 11 turns over the space between the annular protrusion 18 of the locking block 5 and the first stopping protrusion 19. Is not released and it is checked whether the key 28 is a true key.

As another example, assume that the keys are similar keys with the same thickness and different patterns, and the selected locking disc 16 is selected and rotated by the _third and fourth locking discs 16 ₃ and 16 ₄ shown in Figs. 4c and d. In this case, since the depth of the second locking groove 13b of the fourth locking disk 16 ₄ is h, and the depth of the second locking groove 13b of the third locking disk 16 ₃ is 2h, As the key cylinder 3 rotates, even if the locking bar 10 is pushed while sliding along the recess 7a of the first supporting disk 7, the locking bar 10 can be lowered by only h. Since the locking protrusion 12a of the locking piece 12 rotated integrally with the locking bar 10 is lowered by h, the locking bar 10 is not caught by the second stopping protrusion 20 of the locking block 5. As shown in FIG. 3D, the space between the second stop protrusion 20 and the annular protrusion 18 is overlooked. Therefore, even if the key cylinder 3 is rotated, the locking block 5 is not rotated so that the lock release operation is not made, so it is possible to check whether the key is a true key once more.

In this case, in the case of the similar key, the locking operation of the locking piece 12 is performed even when the key is pulled from the key groove 3a in the opposite direction so that the release operation is not performed as described above. The locking piece 12 is locked by the elasticity of the coil spring even when the hook 12a is caught by the annular protrusion 18 and the locking protrusion 12a comes into the opening 18a of the annular protrusion 18. 16) will not fall out.

In this case, therefore, the dial device 6 of the present invention is used, that is, the dial knob 22 of the dial device 6 is rotated left and right so as to be combined with the number plate 2a formed on the housing 2. When the number necessary for the release operation is matched, the recess 23a of the disk 23 provided in the dial device 6 is aligned and elastically installed with the compression spring 27 between the first supporting disk 7. Since the dial hook 26 is advanced toward the locking block 5 and is engaged with the second opening 18b of the locking block 5, when the dial knob 22 is rotated clockwise in this state, the dial While the lock 26 is inserted into the second opening 18b of the locking block 5, the annular projection 18 is pushed to rotate the locking block 5 to the 3c degree, so that the lock is released. In this state, the key cylinder (3) to withdraw the key (28) from the key cylinder (3) ) Rotates counterclockwise, the locking piece 12 is engaged with the locking bar 10 as described above by the combined elastic force of the leaf spring 12b to the first opening 18a. The lock block 5 is returned to its original position, that is, the state of 3a, as it exits from the first stop projection 19, and the key 28 is removed from the key groove 3a of the key cylinder 3. It becomes possible.

At this time, the operation relationship between the dial hook 26 and the second opening 18b is as shown in Fig. 5, the dial hook 26 is moved in the direction of arrow A by counterclockwise rotation of the dial knob 22. The second opening 18b is released from the second opening 18b along the inclined surface 18b ₂ of the second opening 18b.

On the other hand, if the user does not possess the key 28 or if the key 28 is lost, of course, the lock can be released in the above manner.

On the other hand, the present invention can be variously modified bar, for example, by varying the depth or negotiation of the locking groove 14 formed in the locking disk 16 may not be able to operate the key cylinder of the present invention by using a similar key. have. That is, as shown in FIG. 4E, recesses 14a having a predetermined depth are formed in the upper and lower left and right sides of the locking grooves 14 of the locking disc 16 ₅ , or the predetermined lengths are shown in FIG. As described above, the locking groove 14 of the locking disk 16 ₆ is formed into a curved portion 14c having a curved surface with a gentle slope, and the locking groove of these locking disks 16 is rotated as the key cylinder 3 is rotated. It is also possible to cause a phase difference in the alignment state of (13) so that the lock cannot be released by the pseudo key.

In addition, the locking operation of the locking bar 10 may be released or locked using the gravity of the locking bar 10 itself without using the elasticity of the leaf spring 12b or the coil spring 12c. The lock bar 10 starts to be released when the locking bar 10 is positioned in the upper portion of the housing 2 without the opening 2b being formed so that the inner circumferential surface of the housing 2 becomes a constant circle. When the bar 10 is located at the lower end of the housing 2, the lock release operation is completed, and the same operation as when the leaf spring 12b or the coil spring 12c of the locking piece 12 is present can be performed. Will be.

That is, when the key 28 is inserted into the key groove 3a of the key cylinder 3 to align the plurality of locking discs 16, the locking bar 10 is located at the inner upper portion of the housing 2, The locking projections 12a formed on the locking pieces 12 of the locking bar 10 are rotated clockwise by gravity about the connecting rod 11 spanning the first and second supporting disks 7 and 8. It descends into the first opening 18a of the annular projection 18 and is caught by the second stop projection 20. Then, the key 28 inserted into the key groove 3a of the key cylinder 3 is about clockwise. When the lock bar 10 is rotated by 180 ° to release the lock, the locking bar 10 rotates a predetermined range in the counterclockwise direction by the gravity about the connecting rod 11 and then caught by the first stop projection 19. In this state, if the key is rotated counterclockwise, the lock will enter the locked state. do.

Accordingly, as described above, the padlock 12b and the coil spring 12c are installed in the locking piece 12 while the opening 2b is formed in the housing 2, so that the lock-mounted object can be artificially rotated by 180 °. Locks that can be used in safes or cabinets, etc., do not form openings 2b in the housing 2, and lock springs 12b and coil springs 12c are not provided in the engaging pieces 12. Locked objects can be used in vehicles, such as visits, where it is difficult to artificially rotate 180 °.

As described above, according to the present invention, two types of second locking grooves 12a and 12b having depths h and 2h are formed in the locking disc 16, so that the first and second support discs 7 and 8 are provided. The locking bar 10 into the second locking groove 13b of the selected locking disk 16 only when the locking bar 10 is elastically installed in the recesses 7a and 8a of the rotating disk and the key 28 is a true key. 10) is lowered by 2h and the locking protrusion 12a of the locking piece 12 connected integrally is caught by the second stopping protrusion 20 of the locking block 5 to rotate the locking block 5. By unlocking the lock, it is possible to reliably prevent the lock from being released at random by checking whether the key is a genuine key or a pseudo key.

If the key 28 cannot be pulled out from the key cylinder 3 due to a malfunctioning key or hook, the dial block 6 is operated to rotate the locking block 5 with the dial hook 26. As a result, the lock can be released, so that the lock can be reused without damaging the lock.

Claims (3)

First and second support disks are fixedly installed on a key cylinder mounted inside the housing, and a plurality of locking disks having predetermined locking grooves formed on the circumferential surface of the first and second support disks are arranged through spacer rings. In the locking key cylinder assembly for locking the lock bar is selectively locked to the locking groove of the locking disk and the lock device can be used in combination with the dial device, the first and second lock assembly C-shaped locking bar 10 is installed on one side of the supporting disks 7 and 8 so as to be rotated through the connecting rod 11 in the recessed portions 7a and 8a cut at a predetermined angle. A locking piece 12 provided with a locking protrusion 12a is fixed to a distal end of the locking bar 10 opposite to the second supporting disk 8, and the locking piece 12 is disposed on an outer side of the second supporting disk 8. ) Hooking projection 12a is selectively caught And the cylindrical locking block 5 formed with the annular protrusion 18 having the first and second openings 18a and 18b and the first and second stop protrusions 19 and 20 on one side thereof so as to perform the lock release operation. Lock assembly for the lock cylinder, characterized in that coupled to. 2. The disk device (10) according to claim 1, wherein the dial device (6) is provided with a plurality of disks (23) mounted on the bushing (21) via a spacer (24) with grooves (23a) formed on a circumference. Dial to be fitted into the recess 23a of the e), and having a plurality of protrusions 26a to penetrate through the opening 15 of the locking disc 16 to abut on the second opening 18b of the locking block 5; Key lock assembly for a lock, characterized in that it has a hook (26). An opening 2b is provided at one side of the inner circumference of the locking block 5, while the coil spring 12c is elastically installed on the locking projection 12a of the locking bar 12. Locking key cylinder assembly, characterized in that the leaf spring (12b) is provided on the locking bar (12) opposite the locking projection (12a).