JPH0474507B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cylinder lock that can be locked and unlocked using a key (also called an electronic key) that combines a plurality of magnets.

[Prior art]

Figures 1a and 1b are a side view and a side sectional view showing a conventional electronic key and a cylinder lock for the electronic key. 1 is a key, which has a key groove 1a, and permanent magnets (hereinafter simply referred to as (referred to as magnets) 2 are arranged and embedded alternately in the vertical direction so that their N and S polarities form a predetermined magnetic pole pattern code. 3 shows the entire cylinder lock (hereinafter simply referred to as a lock). Reference numeral 4 denotes an outer cylinder, which is fixed to a case or the like (not shown). Reference numeral 5 denotes a plurality of through holes formed alternately in the upper and lower directions of the outer cylinder 4, and 6 a dead bolt (not shown) that is rotatably fitted in the outer cylinder 4 and rotated.
7 is a key insertion hole formed in the axial direction of the key 1; 8 is a bottomed hole formed at a position corresponding to the through hole 5; the through hole 5 and the bottomed hole 8 are as follows: Further, they are arranged at positions corresponding to the magnets 2 of the key 1. 9 is a permanent magnet (hereinafter simply referred to as a magnet) housed in the through hole 5 and the bottomed hole 8;
The magnet 2 of the corresponding key 1 attracts or repels the magnet 2 . 10 is a spring that presses the magnet 9; 11 is a cover that presses the spring 10; and 12 is a shear line formed by the inner circumference of the outer cylinder 4 and the outer circumference of the rotor 6.

In this manner, the lock 3 engages the magnet 9 in the bottomed hole 8 across the shear line 12 so as not to move the rotor 6 within the outer cylinder 4, thereby locking the lock. To unlock the lock, the key 1 is inserted into the key insertion hole 7, and the magnets 9 of the lock 3 are separated by repulsive force of the same polarity to release the lock and rotate the rotor 6.

By the way, in the above-mentioned conventional lock 3, the springs 10 in the outer cylinder 4 are arranged upwardly and downwardly, and in particular, the lower spring 10 has to push up the magnet 9 against its weight, so that the spring 10 cannot be restored. While a large force is required, when attempting to unlock with the key 1, contrary to the above, the repulsive force between the magnet 2 of the key 1 and the magnet 9 of the lock 3 exceeds the restoring force of the spring 10. Pressure is required. Therefore, in order to set contradictory spring outputs for the same spring 10, delicate output standards are required, and the allowable range of the spring output becomes strict. Adjusting the output of the spring 10 and assembling each component are difficult, and once disassembled, it is difficult to assemble for restoration. In addition, the magnets 9 of the lock 3 are arranged correspondingly on the same circumference of the outer cylinder 4, and the key 1 is
It is impossible to lock and unlock with a half turn of 180°, 360°
One rotation is required. This will be explained based on FIGS. 2a to 2c.

As an example, FIG. 2a is a sectional view showing a case where magnets 9 are provided on the same circumference of the outer cylinder 4. When the key 1 is inserted as shown in FIG. 2b, the magnets 9 are repelled by the same polarity. Since it separates from the shear line 12, it becomes rotatable, but when it is rotated 180° in the direction of arrow A in Figure 2b, it corresponds to the different polarity of the magnet 2 of the key 1 as shown in Figure 2c, and due to the attraction action. It gets locked.

Therefore, although the key 1 can be removed, the magnet 2 cannot be repelled even when the key 1 is inserted next time, and the lock cannot be unlocked. Therefore,
In an electronic key, the magnets 9 can only be placed at one location on the same circumference, so the magnets 9 are placed alternately in the longitudinal direction of the outer cylinder 4, and the magnets 9 are arranged at 180° like a general key.
The drawback was that the lock could not be locked or unlocked with a half turn; instead, it required a full 360° turn.

Further, the key can be easily manufactured by inserting a magnetic polarity reading element rod (not shown) into the key insertion hole 7 and reading the polarity of each magnet 9. Furthermore, you can insert a key-like object into the key insertion hole 7 without using a key.
If the locking mechanism is inserted into the locking mechanism and vibrated violently, the upper and lower magnets 9 may be pushed toward the spring 10 and the locking mechanism may be released.

[Summary of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks, and a magnet corresponding to the key magnet is attached to a rotatable lever provided on the rotor of the lock. The rotor can be rotated by releasing the lock with the outer cylinder depending on the polarity, and there is no magnet in the outer cylinder, and it uses not only the repulsion of the same polarity but also the attraction of different polarities. In addition, when one magnet acts in repulsion, the other magnet acts in attraction. Furthermore, recesses are formed on both sides of the rotor, and guide surfaces for guiding the end of the lever are provided in the recesses. To provide a cylinder lock which prevents the vibration of a lever by attaching a formed guide plate and which simplifies the combination and assembly of key parts. Examples of the present invention will be described below.

[Embodiments of the invention]

Figures 3a to 3d show an embodiment of the present invention, in which Figure 3a is a perspective view of the key, Figure 3b is a perspective view of the lock, and Figure 3c is an arrow B in Figure 3b. FIG. 3d is a sectional view taken along the line -- of FIG. 3c. In these figures, 21 is a key, 21a is a keyway, and 22 is a magnet.The difference from the conventional one is that they are arranged on the same line in the upper and lower directions, and the other configurations are the same as in Figure 1a.
This is the same as the conventional example. 23 indicates the entire cylinder lock (hereinafter simply referred to as a lock). 24 is the outer cylinder, 2
5 is an engagement groove formed on the inner periphery of the outer cylinder 24;
They are formed at equal intervals. 26 is the outer cylinder 2
A rotor 27 rotatably fitted around the circumference of the rotor 26 is a key insertion part fixed integrally with the rotor 26, and a dead bolt (not shown) is moved in and out by rotation. 28 is a key insertion hole formed in the axial direction of the lock 23; 28a is an engagement protrusion that engages with and guides the keyway 21a; 29 is formed in a part of the rotor 26 in the circumferential direction; And, lock 2
3 are notched grooves arranged in the axial direction; 30 is a shear line formed by the inner surface of the outer cylinder 24 and the circumferential surface of the rotor 26; 31 is a lever;
is rotatably inserted through the notch groove 29 by a shaft 33. 32 is a through hole of the lever 31, and a shaft 33
is fixed to the rotor 26 at both ends. 34,
35 is a through hole formed at one end side and the other end side of the lever 31, and 36 is a through hole 3 formed at the other end side of the lever 31.
An engagement protrusion 37 formed integrally with the engagement groove 25 and engaged with the engagement groove 25 is a magnet, and also functions as a weight. 38 is a guide plate that is integrally attached to the rotor 26; 39 is a guide surface that guides the end of the lever 31 when the lever 31 rotates; 40 is a mounting screw that attaches the guide plate 38 to the rotor 26. It is.

FIGS. 4a, b, and c are side views showing the rotor 26;
41 is a through hole through which the shaft 33 is inserted, and 42 is a sectional view taken along the line - and -, and 42 is the guide plate 3.
8 is a concave portion which is fixed integrally with the rotor 26 by fitting, 43 is a screw hole for the mounting screw 40, and 44 is a through hole into which the key insertion portion 27 is inserted. Otherwise, the same reference numerals as in FIG. 3 indicate the same parts.

Figures 5a and 5b are side views showing the guide plate 38 and -
In the cross-sectional view taken along the line, reference numeral 45 indicates an insertion hole for the mounting screw 40.

Next, the assembly of the lock 23 will be explained.

First, the key insertion portion 27 is inserted into the through hole 44 of the rotor 26.
is inserted and fixed, and then the lever 31 is inserted into the notch groove 2.
9, the magnets 37 are arranged so that the polarity corresponds to a predetermined pattern code, and the shaft 33 is sequentially inserted from the lever 31 at the end of the rotor 26 through the through hole 41 to pivotally support the lever 31. , the shaft 33 is connected to the through hole 4
Fixed to 1. Next, the guide plate 38 is inserted into each recess 42.
and secure it by tightening the mounting screw 40. Next, the rotor 26 is inserted and fixed into the outer cylinder 24 to complete the assembly of the lock 23.

Next, the operation will be explained.

6A to 6E are explanatory diagrams showing the locking operation of the lock 23. FIG.

When the key 21 is not inserted in the locked state, the upper lever 31 is rotated by the weight of the magnet 37 and the engagement protrusion 36 is engaged with the engagement groove 25, as shown in FIG. 6a. . In addition, lever 3 at the bottom
1, the engagement protrusion 36 engages the engagement groove 25 due to the weight of the magnet 37.
has left from.

Next, when the key 21 is inserted into the key insertion hole 28,
As shown in FIG. 6b, the polarity of the magnet 22 of the key 21 repulses the magnet 37 of the lever 31 to disengage each engagement protrusion 36 from the engagement groove 25.

Next, when the key 21 is rotated 180 degrees, each lever 3
1 is in the position shown in FIG. 6c and is in the unlocked state.

Further, FIG. 6 d shows a case where a key 21 having a different polarity other than the predetermined key 21 is inserted in the same locked state as in FIG. The rotor 26 cannot be rotated even if the key is inserted.

Further, FIG. 6e shows a case where a key 21 having a different polarity other than the predetermined key 21 is inserted in the unlocked state shown in FIG. 6c, similar to FIG. 6d, and the attraction of the magnet 37 This shows a state in which the rotor 26 cannot be rotated by the key 21 having a different polarity due to the engaged state.

By the way, in the key 21 which has magnets of different polarities, if even one of the many magnets arranged has a different polarity, it will be locked by the magnet 37 of one lever 31 corresponding to this magnet. The rotor 26 cannot be rotated.

Furthermore, the polarity arrangement of the engaging protrusion 36 of the lever 31 and the magnet 37 is not limited to that shown in the drawings.
Various combinations can be provided.

7a to 7c show other embodiments of the present invention, in which FIG. 7a is a perspective view showing a cross-shaped key, FIG. 7b is a perspective view showing a lock, and FIG. 7c is a perspective view showing a lock. Figure 7b
FIG. In these figures,
51 is a cross-shaped key (hereinafter simply referred to as a key), 51
a is a guide part that determines the direction of key insertion; 52 is a magnet; the position of the magnet 52 is opposite to the key 51 in the vertical and horizontal directions; arranged alternately. Further, 53 indicates the entire cylinder lock (hereinafter simply referred to as a lock), 54 is a rotor, 55 is a key insertion portion, 56 is a key insertion hole, and 56a is the key 5.
A guide notch 57 determines the insertion direction of the rotor 54; a notch groove 58 formed on the same circumference of the rotor 54;
is shear line. Otherwise, the same reference numerals as in FIG. 3 indicate the same parts.

Next, the operation will be explained. Figures 8a to 8e are explanatory diagrams showing the locking operation of Figure 7c, and Figure 9a is an illustration of the locking operation of Figure 7c.
A sectional view taken along the - line in FIG. 9b, and FIGS. 9b to 9e are explanatory diagrams showing the locking operation in FIG. 9a.

8a shows the state of each lever 31 corresponding to the magnets 52 arranged above and below the key 51, and FIG. 9a shows the state of each lever 31 corresponding to the magnet 52 arranged horizontally on the key 51. In both cases, the lock is in a locked state and the key 51 is not inserted.

Figures 8b and 9b show the key 5 in the locked state.
When the key 51 is inserted and unlocked, Fig. 8c and Fig. 9c are shown when the key 51 is inserted and rotated 180°.
d and 9d show the case where a key 51 having a different polarity other than the predetermined key 51 is inserted in the locked state of FIGS. 8a and 9a, and the engagement protrusion 36 is inserted into the engagement groove 2.
5 shows the locked state.

8e and 9e show the locked state when a key 51 having a different polarity other than the predetermined key 51 is inserted in the unlocked state shown in FIGS. 8c and 9c.

Note that the polarities of the magnets 52 of the key 51 are not limited to those shown, and can be arranged in any combination of polarities. A large number of can be provided.

Further, the key 51 and the key insertion hole 56 are not limited to those shown in the drawings, and the key 51 may have a polygonal or cylindrical cross section.
6 is also formed to match the shape of the key 51.
and an engaging protrusion 36 and an engaging groove 2 that serve as a guide for determining the insertion direction of the key 51 at the corresponding position.
5 may be formed respectively.

〔Effect of the invention〕

As explained above, the present invention has a plurality of notched grooves each having a predetermined width arranged in a part of the circumferential direction of the rotor in sequence in the axial direction of the rotor, and a plurality of notched grooves having a predetermined width in a part of the circumferential direction of the rotor. The levers are provided with pivoted levers, the ends of these levers have magnets that attract or repel in accordance with the polarity of the magnets of the keys arranged according to a predetermined pattern code, and the inner peripheral surface of the outer cylinder An engagement protrusion that engages and disengages from the engagement groove formed in the rotor is formed, and a recess is formed on both sides of the rotor, and a guide plate having a guide surface for guiding the end of the lever is attached to the recess. Since the cylinder lock was constructed using
During the locking/unlocking operation, the magnet of the cylinder lock can lock/unlock the lock by engaging and disengaging the engaging protrusion not only by repulsion but also by attraction, so there are many types of combinations of the engaging protrusion and magnet. It is possible to manufacture an order of magnitude larger number of locks. Therefore, even if an element sensor for detecting magnetic polarity is inserted, the polarity of the entire magnet cannot be determined, making it impossible to make a key. Furthermore, even if the rod is inserted into the key insertion hole and violently vibrates vertically and horizontally, the lever will not vibrate because there is no gap between the lever and the guide surface of the guide plate. Even if one of the levers were to be used to unlock the door, the other levers would be used to lock the door, making it impossible to unlock the door using this method. In addition, unlike conventional springs, there is no need to install a spring with a narrow allowable range of spring output, and since the guide plate is attached after the lever is pivoted in the notch groove, it is easier to combine and assemble the parts. It has advantages such as saving labor, shortening assembly time, and easy restoration after disassembly.

[Brief explanation of drawings]

Figures 1a and b are side views and side sectional views showing a conventional electronic key and a lock device for the electronic key, and Figures 2 a to c show magnets arranged on the same circumference of the outer cylinder of the lock device. Figure 2a shows the operation when the key is not inserted, Figure 2b shows the operation when the key is inserted, and Figure 2c shows the operation when the key is inserted and rotated by 180 degrees. . Figures 3a to 3d show an embodiment of the present invention, in which Figure 3a is a perspective view of the key, Figure 3b is a perspective view of the lock, and Figure 3c is an arrow B in Figure 3b. Partially broken side sectional view, Fig. 3 d is - of Fig. 3 c.
4a to 4c show the rotor of FIG. 3b, FIG. 4a is a side view, and FIGS. 4b and c show the rotor of FIG. 4a. Cross-sectional views, Figures 5a and b are side views showing the guide plate in Figure 3b, and cross-sectional views taken along the - line, Figures 6 a-e.
7 is an explanatory diagram showing the locking operation of the lock, and FIGS. 7a to 7c show other embodiments of the present invention. FIG. 7a is a perspective view of a cross-shaped key, and FIG. 7b is a perspective view of the lock. ,
FIG. 7c is a sectional view taken along the - line in FIG. 7b, FIGS. 8a to 8e are explanatory diagrams showing the locking operation in FIG. 7c,
FIG. 9a is a sectional view taken along the - line in FIG. 7b, and FIGS. 9b to 9e are explanatory diagrams showing the locking operation in FIG. 9a. In the figure, 21 is a key, 21a is a keyway, 22 is a magnet, 23 is a cylinder lock, 24 is an outer cylinder, 25 is an engagement groove, 26 is a rotor, 27 is a key insertion part, 28 is a key insertion hole, 28a is an engagement protrusion, 29 is a notch groove, 3
0 is shear line, 31 is lever, 32 is through hole, 3
3 is a shaft, 34 and 35 are through holes, 36 is an engaging protrusion, 3
7 is a magnet, 38 is a guide plate, 39 is a guide surface, 40 is a mounting screw, 41 is a through hole, 42 is a recess, 43 is a screw hole, and 44 is a through hole.

Claims (1)

[Claims] 1 A cylindrical rotor is rotatably fitted into an outer cylinder having an engagement groove on the inner peripheral surface, and a key insertion hole is formed in the axial direction in the rotor so that the rotor rotates integrally with the rotor. A key insertion part is provided for locking and unlocking the dead bolt by moving it in and out, and notch grooves having a predetermined width are sequentially formed in a part of the circumferential direction of the rotor in the axial direction of the rotor. Each of the levers is provided with a rotatably supported lever, and each of the levers has a magnet at the end thereof that attracts or repulses in accordance with the polarity of the magnet of the key arranged according to a predetermined pattern code. a guide surface forming an engagement protrusion that engages and disengages the engagement groove formed on the inner peripheral surface of the outer cylinder, further forming a recess on both sides of the rotor, and guiding the end of the lever to the recess; A cylinder lock characterized in that it is equipped with a guide plate formed with.