JPS609194B2 - Axial pin tumbler lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cross-pin tumbler lock that is secure against unauthorized key locks.

When the key of various types of vending machines is stolen or lost, it is recommended that the entire locking device be removed from the device in order to effectively prevent unauthorized unlocking by a thief or finder. I might replace it with a new one, but at least I would have had to remove the mirror mechanism from the lock case and replace it with a lock mechanism with a different key code.

However, lock mechanisms are generally expensive, and the labor and expense required to replace them cannot be underestimated. In particular, when a single key is used to operate the locks of multiple devices, the burden increases accordingly. Because codes can be easily changed, even if the key is stolen or lost, there is no need to replace the expensive lock mechanism. That's true.

The gist of the present invention will be explained below using reference numerals in the attached drawings. 5, and the rotating disc @b is brought into contact with the front end surface of the sub-rotating magazine S, and the main rotating magazines 3-
Rotatably insert the sub-rotating magazine 5 and the rotating disc 6b into the Fujiko Guntsuru of the case army ~ Central shaft hole 4 with a poor rotating disc
6. Central shaft hole 3 on the back of the sub-rotating magazine? And in the central shaft hole 36 of the main rotating magazine 3, there is a small diameter shaft portion 3 at the rear end of the key guide turtle.
8 is rotatably inserted in the chain, and the locking shaft 2 is attached to the center of the rear end surface of the main rotating magazine 3, and the fixed magazine 4 is connected to the main rotating magazine 3 and the sub rotating magazine 5 at a constant angular interval on the same circumference. A plurality of small holes 79 and 18 are placed adjacent to each other, and a driven pin 9 and an intermediate pin 9 and a drive pin 1 are inserted in sequence into these small holes, and the intermediate pin 9 and drive pin 1 are inserted in sequence. A guide body angle 3 disposed between a plurality of driving pins i and 1 protruding from the front end surface of the rotating magazine 5 is provided protruding from the outer peripheral surface of the rotating disk 6b. The cylindrical outer peripheral flange 17' of the mold set key 19 is located at the positioning protrusions 16a, 1 on the inner peripheral surface of the front end of the shaft hole 14.
2 of the number of positioning protrusions to create a groove that can pass through 6b.
Two cylindrical individual keys are prepared for each set key amount 9, which is twice as many as tl.The cylindrical portion outer periphery flange turtle 81 of the cylindrical individual keys 2 and the insertion groove 22a through which the positioning protrusion can pass through? 22b are provided in the same number as the positioning protrusions, and the angular spacing between the two insertion grooves 21a and 2b of the set key and the angular spacing between the blades 21a' and 2 b' is twice the angular spacing of the drive pin 11. A locking groove turtle with which the guide turtle 3 engages is formed in the cylindrical portion of one cylindrical master set key 23, and locking grooves 28 and 28 with which the guide turtle 3 engages are respectively formed in the set. The formation position of the locking groove 25 between the plurality of set keys 18, formed in the cylindrical part of the key and the individual keys 2 and 2, is determined by the arrangement angular interval of the drive pin. The forming position of the locking groove 26 is set between the two attached individual keys 2Qy88, which are different from each other in units of one set key. 21b' differs by the arrangement angular interval "
All of the drive pin caps are inserted into the tip of the cylindrical portion of the cylindrical master set key 23 into the auxiliary rotating magazine 51, so that the guide body cap 8 and the drive pin cap are both disengaged and fixed. The set key g
The cylindrical part is provided with a mirror lock of the sub-rotating magazine 5 with respect to the main rotating magazine 3 while maintaining the locking of the main rotating magazine 3 against the fixed magazine target and the alignment of the guide body part and the drive pin. An operation groove 2 is formed in the cylindrical portion of the individual key, and the cylindrical part of the individual key is fixed to the guide weight 3 and the drive pin 11 while maintaining the coin purse of the sub-rotary magazine 6 relative to the main rotary magazine 3. This is because an operating groove 29 is formed to unlock the main rotating magazine 3 from the magazine 4.

In the illustrated embodiment, the main rotary magazine 8 is fixed to the case 1 by a fixed magazine screw 3 small Z inserted into the rear end of the dowel hole 14.
A locking shaft 2 integrally molded with the housing is rotatably inserted overboard, and the locking shaft 2 is locked to the fixed magazine 4 by an E-shaped locking mechanism 32, and is prevented from escaping from the case 1.

A rotation angle control plate 33 and a latch plate 34 are iron-coupled to the threaded shaft portion 2a of the locking shaft 2, and are fixed with nuts 35. The rotation angle of the lock shaft 2 is set to 90 degrees. The small shaft portion 38 protruding from the center of the rear end surface of the key guide 6 is iron-cast in a central shaft hole 36 formed in the entire main rotating magazine 3a and the front end of the locking shaft 2. The circumferential groove 39 provided in the middle of the small diameter ratchet portion 38 has a small hole 4 in the transverse direction of the sub-rotating magazine 5.
Since the tip of the lock pin 40 driven into the lock pin 4 is engaged with the small diameter shaft portion 38, the small diameter shaft portion 38 cannot be extracted from the sub-rotation magazine 5.

The rotating disc 6b is disposed between the neck 6a of the key guide 6 and the sub rotating magazine 5, and constitutes a part of the key guide 6. The rotating disk 6h has three open vertical grooves 41a, 41b and 41c in the radial direction on its circumferential side.
The longitudinal grooves 41a and 41b are arranged at an angular interval of 90 degrees. Only one plate-shaped guide body 13 is squeezed and fixed in the vertical groove 41a. Therefore, one locking groove 24, 25, 26 is provided.
At the front end of the ball hole 4, there is a sub-rotating magazine 6 and an annular shoulder 15.
In between, a subesa 42, a plate-like subesa 43, and a cylindrical subesa 45 made of curved material are mounted overboard, and the plate-like subesa 4
3 and the annular shoulder portion 15, the linear spacer 42 forms a rotation space for the respective cylindrical outer peripheral flanges 7 and 18 of the set key 19 and the individual key 20.

The front end of the drive pin 11 comes into contact with the back surface of the plate-shaped spacer 43. The outer circumferential surface of the cylindrical part of the master set key 23 is marked with “
The outer periphery flange 17 of the set key 19 and the individual key 20 and the flange corresponding to the turtle 8 are not provided in any way, and the cylindrical master set key 23 can be moved from any position regardless of the presence of the positioning protrusion. It can be inserted into and removed from the hole 14. The angular interval between two positioning protrusions 16a and 16b, upper and lower, provided on the front end closed inner peripheral edge of the hole 14 of the case 1 is 1.
Since the angle is 57.5 degrees, the flange 18 of the individual key 20 has two insertion grooves 2 at the same angular interval of 157.5 degrees.
2a and 22b are provided. 1 set key 19
Since the two individual keys 20 are roughly aligned, the number of insertion grooves provided in the set key 19 is equal to the number of insertion grooves of the individual keys 20 multiplied by the number of individual keys 20, i.e. There are 4 pieces.

The angular spacing between one pair of insertion grooves 21a and 21b and the angular spacing between another pair of insertion grooves 21 and 21b' are both 1.
57.5 degrees, and the corresponding insertion grooves 21a and 21a'
, the angular interval between the insertion grooves 21b and 21b' is 90 degrees. Eight of the small holes 7, 10, 12 are provided at equal angular intervals of 45 degrees, and the plate-shaped guide body 13 is arranged between two adjacent holes.
Since the board is thick enough to almost completely fill the space between the drive pins 11 of the book, the guide body 13 is set at 8 positions by the master set key 23 as shown in FIG. Therefore, eight set keys 19 are combined with one master set key 23.

The formation positions of the locking grooves 25 for the set key 19 and the formation positions of the locking grooves 25 for the individual keys 20 are eight, from A to D, as shown in FIGS. 8 and 9. The keys thus obtained are systematically classified as shown in FIG. 10. In the ball direction pin tumbler lock of this example configured in this way, the key code of the key mechanism is changed as follows. For example, as shown in FIG. 3, when the locking mechanism is set so that the intermediate pin 9a contacts the driving pin 11a and the driven pin 8a and the individual key 20A can be used, the individual key 20A2 In order to make it usable, a pair of surface grooves 21a, 21
Align b with the positioning protrusions 16a and 16b on the case, insert the set key 19A into the dowel hole i4, push it in fully in all directions, and then turn the set key 19A clockwise in Figure 1 (around the rebound indicator in Figure 10). 2) Rotate 90 degrees, and move another set of front fittings 21a', 21b' to the positioning protrusions 16a, 21b'.
16b, and then pull out the set key 19A from the hole 14. By pressing this set key 19A,
As shown in FIG. 5, the operating groove 28 of the set key 19A pushes the drive pin 11 and causes all the intermediate pins 9 to enter the small holes 10 of the main rotating magazine 3.
The mirror lock of the sub-rotating magazine 5 is released.

At this time, the guide body 13 is still engaged between the drive pins 11, 11 partially protruding from the front end surface of the sub-rotary magazine 5, and the guide body 13 is also engaged with the locking groove 25 of the set key 19A. Therefore, when the set key 19A is turned, the rotary disk 6b and the sub-rotary magazine 5 rotate integrally. Thus, when the set key 19A is rotated 90 degrees clockwise and pulled out, the auxiliary rotating magazine 5 through which the drive pin 11a passes, as shown in FIG.
A second intermediate pin 9c, counted from the original intermediate pin 9a, is inserted into the small hole 12a. Similarly, the intermediate pins 9 are inserted into the other seven small holes 12 by 90 degrees from the original position, and this iron mechanism is set in another key position. That is, as shown in FIG. 6, the individual key 20 has an operation manual 29g for inserting the secondary pin 8a into the small hole 7a of the fixed magazine while inserting the intermediate pin 9a into the small hole 12g of the sub-rotating magazine 5. If the lock is not used, the main rotating magazine 3 cannot be unlocked from the fixed magazine 4, and the locking operation of the latch plate 34 cannot be performed by rotating the locking shaft 2.

Next, in order to be able to use a different system of individual keys 20B for this coin mechanism, a pair of cover grooves 21a', 2
1b' with the positioning protrusion 16a and turtle 6b, reinsert the set key 19A into the shaft hole 14, push it in fully, and turn the set key 19A counterclockwise in Fig. 1 (clockwise in Fig. 10). ) Rotate 90 degrees and insert another set of insertion grooves 21a, 21b into positioning protrusions 16a, 16b.
At the same time, pull out the set key 19A from the Fuji hole 14.

After that, insert the master set key 23 into the shaft hole 14, push it in fully, rotate the master set key 23 45 degrees clockwise in FIG. 1 (counterclockwise in FIG. 10), and then insert the master set key 23 into the shaft hole 14. Just pull it out from 14. As shown in FIG.
When the master set key 23 is fully pushed in, the engagement between the guide body 13 and the drive pin 11 is released, and the locking groove 24 is engaged with the guide body 13. By turning the mask set key 23, the rotary disk 6b is independently rotated.

At this time, "the sub-rotating magazine 5 and the main rotating magazine 3 are
As shown in the figure, the fixed magazine is locked by the drive pin 13 and the intermediate pin 9, and cannot rotate. Thus, by rotating the master set key 23 by 45 degrees, the setting position of the guide body 13 is changed to the original drive pin 11.
Drive pin 11 shifted by 45 degrees from position A between a and 11b
It is changed to position B between b and 11c. In this set state, only the individual key 20B can be used.
Another individual key 20B2 belonging to set key 19B
In order to enable the use of the individual keys 20A, .
Just use the set key 19B in the same way as when changing the code between 20 and 20 seconds. Thus, in this example, one master set key 23, eight set keys 1, as shown in FIG.
A key series is composed of individual keys 20 with 9,1 needles, and has 16 types of key codes.

In addition, in the key sequence diagram in Figure 10, the individual key 2 of 1st needle is
0, there are two individual keys whose locking grooves 26 have the same phase with respect to the insertion grooves 22a and 22b, so it appears as if there are eight types of key codes, but for example, the individual keys 20 and the individual key 20C, in the set state where the individual key 20 can be used, the drive pin 11a is in contact with the intermediate pin gc as described above, while,
In the set state in which the individual key 20C can be used, the drive pin 11a is in contact with the intermediate pin 9a. 29 naturally differs in their depth, and it is clear that both are individual keys with different key codes.The koji direction pin tumbler lock of the present invention configured as described above has a specific key code currently in use. Even if the individual key 20 is stolen or lost, the key code of the lock mechanism can be easily changed by using the master set key 23 and the set key 19 equally.
In order to make it impossible to use the stolen or lost individual key and to enable the use of other individual keys 20, it is necessary to replace the entire locking mechanism or locking device with a new one at great effort and expense. There is no. Not only can it accurately prevent unauthorized unlocking by thieves or discarders of individual keys, but even if the current individual key is damaged, it can be easily replaced with another individual key, making key management easier. In addition, in the axial pin tumbler lock of the present invention, the small diameter shaft portion 38 at the rear end of the key guide 6 is connected to the central shaft hole 46 of the rotating disk 6b, the central shaft hole 37 of the sub-rotating magazine 5, and the main rotating shaft. The guide bodies 13 are sequentially inserted into the central shaft hole 36 of the magazine 3, and are arranged between a plurality of driving bins 11, 11 arranged at constant angular intervals and protruding from the front end surface of the sub-rotary magazine 5. Positioning protrusions 16a, 16 on the inner circumferential surface of the front end of the groove hole 14 of the case 1 are provided protrudingly on the outer circumferential surface of the case 6b.
An insertion groove that can pass through the insertion groove 22 of the individual key 20 is provided in the cylindrical outer peripheral flange 17 of the cylindrical set key 19 and the cylindrical outer peripheral flange 18 of the cylindrical individual key 20.
The insertion groove 2 of the set key 19 is provided twice as much as a and 22b.
The angular spacing between 1a, 21b and 21a', 21b' is twice the angular spacing of the driving pin 11, and the guide body 13 is attached to the cylindrical portion of one cylindrical master set key 23 having no outer peripheral flange. forms a locking groove 24 with which the guide body 13 engages, and locking grooves 25 and 2 with which the guide body 13 engages.
6 are formed on each cylindrical portion of the set key 19 and the individual key 20, respectively, and the same number of set keys 19 as the drive pins 11 are formed.
, 19 . Between the keys 20, 20, the locking groove 2
The formation positions of the insertion grooves 21a, 21b and 21 are
1b', and the cylindrical portion of the master set key 23 is provided with the drive pin 1.
1 into the sub-rotating magazine 6}, the engagement between the guide body 13 and the drive pin 11 is released, and this guide body 1
3 and the rotary disk 6b are formed, and the cylindrical portion of the set key 19 maintains the engagement between the guide body 13 and the drive pin 11, and the guide body 13,
Main rotating magazine 3 of rotating disk 6b and sub rotating magazine 5
An operating groove 28 is formed in the cylindrical portion of the individual key 20 to maintain engagement between the guide body 13 and the drive pin 11, and the guide body 13 and the rotating disk 6
b. An operating groove 29 is provided that allows only the rotation of the sub-rotating magazine 5 and the main rotating magazine 3 with respect to the fixed magazine 4.

Therefore, in the key direction pin tumbler lock of the present invention, it is possible to create a number of key codes equivalent to twice the number of drive pins 11, and to differentiate between individual keys that can be used for a specific lock mechanism. You can get a relatively large amount.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are front and rear views of a ball pin tumbler lock, FIGS. 3 and 4,
Figures 5 and 6 are cross-sectional views taken along the line A-A' in Figure 1 when the key is removed, the master set key is inserted, the set key is inserted, and the individual key is inserted, respectively, and Figure 7 is the guide body. 8 and 9 are rear views of the set key and individual key key cylinders showing the formation positions of the locking grooves. FIG. 10 is a system diagram of each key. Figure 11 is a sectional view taken along line B-6 in Figure 1 when the set key is rotated 90 degrees and then pulled out, and Figure 12 is the front view of the lock when the guide body is moved using the master set key. Figure, 1st
Figures 3 and 14 are the rear view and vertical sectional view of the individual key, and Figure 15
Figures 16 and 16 are a front view and a longitudinal sectional view of the case, Figures 17 and 18 are a front view and a longitudinal sectional view of the integrally formed locking shaft and main rotating magazine, and Figures 19 and 20 are a front view and a longitudinal sectional view of the case. The front view and right side view of the key guide, Figures 21 and 22 are the front view and longitudinal sectional view of the rotating disk, Figures 23 and 24 are the front view and longitudinal sectional view of the sub-rotating magazine, and Figure 25 is Fig. 26 is a front view and a right side view of the guide body, Figs. 27 and 28 are a front view and a longitudinal sectional view of the fixed magazine, Fig. 29 is a front view of the linear smoother, and Fig. 30 is a plate-like smoother. Longitudinal cross-sectional view of Figure 31 and Figure 3
2 is a front view and a right side view of the cylindrical smoother, and FIG. 33 is a sectional view taken along the line D--X in FIG. 4. 1...Case, 2...Lock shaft, 3...Main rotating magazine, 4...Fixed magazine, 5...Sub rotating magazine, 6...Key guide , 6b...
・Rotating disk, 8... Driven pin, 9... Intermediate pin, 11... Drive pin, 13... Guide body, 14
...Wisteria hole, 16a, 16b...Positioning protrusion, 1
9...Set key, 20...Individual key, 2
1a, 21b, 21a', 21b'. ．． ．． ．． ．． ．． Set key insertion groove, 22a, 22b.・・・． ... Individual key insertion groove, 23 ... Master set key, 24 ...
...Master set key locking groove, 25...
Set key locking groove, 26...Individual key locking groove, 27...Master set key operation surface, 2
8... Set key operation groove, 29...
Individual key operation groove. * 1 evil tide 2 power 7 figure next mouse Tsutomu 4 figure many requests for power 8 figure Tsugoshi force is successful fungus growth 21 figure heat 2 figure heat 3 Kaede box Noo prison ice J4 sardine outside , Ubo new r6 Figure Shio r7 Mother Shio 11 Figure W ′Z Figure next, 8 Figure next bamboo bait power 20 Figure Sai Zro, Fuo Z4 Figure outside Z Ta prisoner O Z6 Figure outside Figure Z7 Figure Shio 28 Figure Oki Z? Figure game 0 figure is outside the box wo Z stupid

Claims (1)

[Claims] 1. The main rotating magazine 3 is brought into contact with the front end surface of the fixed magazine 4, the auxiliary rotating magazine 5 is brought into contact with the front end surface of the main rotating magazine 3, and the rotating disk 6b is brought into contact with the front end surface of the auxiliary rotating magazine 5. , the main rotating magazine 3, the sub rotating magazine 5, and the rotating disc 6b are rotatably fitted into the shaft hole 14 of the case 1, and the central shaft hole 46 of the rotating disc 6b and the sub rotating magazine 5 are inserted into the shaft hole 14 of the case 1.
The small diameter shaft portion 38 at the rear end of the key guide 6 is rotatably fitted into the central shaft hole 37 of the main rotary magazine 3 and the central shaft hole 36 of the main rotary magazine 3, and the locking shaft 2 is provided protruding from the center of the rear end surface of the main rotary magazine 3. ,
The fixed magazine 4, the main rotating magazine 3, and the sub rotating magazine 5 are each provided with a plurality of small holes 7, 10, and 12 in the axial direction at regular angular intervals on the same circumference. The driven pin 8, the intermediate pin 9, and the drive pin 11, which are biased to slide, are sequentially inserted and inserted, and the guide body 13 disposed between the plurality of drive pins 11, 11 that protrude and retract from the front end surface of the sub-rotary magazine 5 is inserted. protrudingly provided on the outer peripheral surface of the rotating disk 6b,
The outer flange 17 of the cylindrical part of the cylindrical set keys 19, which has the same number of drive pins 11, has insertion grooves that can pass through the positioning projections 16a and 16b on the inner peripheral surface of the front end of the shaft hole 14, which is twice the number of positioning projections. The same number of insertion grooves 22a and 22b as the positioning protrusions are provided on the cylindrical outer periphery flange 18 of the cylindrical individual keys 20, two of which are prepared for each cylindrical set key 19, to allow the positioning protrusions to pass through. The two insertion grooves 21a, 21b and 2
The angular interval between the drive pins 1a' and 21b' is
A locking groove 24 with which the guide body 13 engages is formed in the cylindrical portion of one cylindrical master set key 23, and a locking groove 25 with which the guide body 13 engages is also formed. and 26 are formed on the cylindrical portions of the set key 19 and the individual key 20, respectively, and a plurality of set keys 19, 19 are formed.
The formation positions of the locking grooves 25 are different between the two individual keys 20 attached to one set key 19 by the angular spacing of the drive pins 11.
, 20, the formation positions of the locking grooves 26 are made different by the angular interval between the insertion grooves 21a, 21b and 21a', 21b', and the master set key 2
At the tip of the cylindrical portion of No. 3, all of the drive pins 11 are inserted into the sub-rotation magazine 5 to release the engagement between the guide body 13 and the drive pin 11, and to lock the main rotation magazine 3 to the fixed magazine 4. forming an operating surface 27 for maintaining the locking of the secondary rotating magazine 5 with respect to the main rotating magazine 3;
The cylindrical portion of the set key 19 has a function for locking the sub-rotating magazine 5 with respect to the main rotating magazine 3 while maintaining the engagement between the guide body 13 and the drive pin 11 and locking the main rotating magazine 3 with respect to the fixed magazine 4. An operation groove 28 is formed in the cylindrical portion of the individual key to release the fixed magazine 4 while maintaining the engagement between the guide body 13 and the drive pin 11 and the locking of the sub-rotary magazine 5 with respect to the main rotary magazine 3. An axial pin tumbler lock characterized by forming an operating groove 29 for unlocking the main rotating magazine 3.