JPS58123980A - Chain lock apparatus using card - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention is a mechanical locking device using a card, that is, the door can be unlocked by inserting a card into a card slot provided in the door without using an electrical device, and This relates to a barrier pull and mechanical locking device that can be changed extremely easily. Conventionally, there have been electric card system lock devices that use magnetic cards or punch-hole cards, but such electric card systems consist of a power supply section, a part of a card reader, a control section, an electric lock, etc. It was very complicated and expensive, and the installation work and electrical wiring work required a great deal of labor and resources. In view of these problems with electrical card systems, the present invention provides a mechanical system that allows the user to unlock the lock by inserting a card into the card slot, while retaining the ease of use of the electrical system. The aim is to provide a locking device that can Furthermore, regarding hotel room locks, there is a strong desire to change the room key in a timely manner to prevent malicious guests from copying the room key and stealing from the room at a later date. Currently, this is difficult to do.The present invention aims to provide a locking device that can extremely easily change the duplicate key (change the duplicate card).

My father's invention, which has the same idea as the present invention, was published in Japanese Patent Application Laid-open No. 53-1.
46899, but that invention has obvious drawbacks in its construction. This means that it is possible to easily create a duplicate key (reply card) by observing the movement of the ball whose head is sticking out into the insertion slot into which the card to be used as the duplicate key is inserted. To be more specific, when you push the ball into the hole in the key card with a wire-like object, the ball in the place where the hole should be made and the ball in the place where the hole should not be made, the former is inserted in advance and is urged upward by multiple springs. The resistance is very large because the crab pushes down the entire code card that is in the lock bottle and retreats, and the latter only pushes back against the force of the single sub 9 ring that energizes the lock bottle, so the resistance is very large. /J%saiO Therefore, if you find the pushing resistance of each ball, you can easily create a matching card.

In order to solve the problems of such a locking device, the applicant has
Previously, we applied for an invention called Japanese Patent Application No. 114433/1983 [Locking Device Using Cards].

Although this prior invention has achieved the above object, a new problem has been found in that this invention requires precision equivalent to that of the conventional pin cylinder and requires a corresponding amount of cost.

The present invention further improves on the prior invention, and aims to provide a locking device that does not require much precision, is reliable in operation, and is inexpensive.

The implementation of the apparatus of the present invention will be explained below.

(Description of First Embodiment) First, the first embodiment shown in FIGS. 1 to 5 will be described.

In the drawings, A is a fixed block, Aa is its partition plate, 1 is a movable block, and 1a is a partition wall of the movable block l. Reference numeral 2 denotes a swinging tumbler having an inverted T-shape with left and right bottom portions 2a, 2b and a top portion 2c. Convex portions tan and tb are protrudingly provided on the lower surfaces of the left and right bottom portions 2a and 2b, respectively.

Reference numeral 3 denotes a rotation shaft of the tumbler 2 which passes through each of the swing tumblers 2 and is fitted into the elongated hole 4. The swinging tumbler 2 swings left and right within the partition section 9a between the partition plate Aa and the partition wall 1a.

Reference numeral 5 denotes a spring that constantly presses the left and right bottom portions 2a, 2b of the tumbler 2 downward, and is wound around the intermediate shaft 5a and fixed to the fixed block A as shown in FIG.

6a+6b are cards inserted from the left and right card insertion lowers, and a plurality of engagement holes 8 are arranged in series on the inside of the card.
9b is a partition section as described above, and 10 is a through groove in the center of the partition plate 1a.

The operation of the first embodiment will be explained below. FIG. 2 shows a state in which the cards 6a and 6b are not inserted. First, only the case where there are a pair of holes to be punched in the left and right cards 6 a and 6 b will be described below.

In the case of FIG. 2, the left and right bottom portions 2a of the tumbler 2.

The convex portions ta and tb of 2b contact the bottom surface of the fixed block A to keep it horizontal, so the tumbler 2 stands upright, and its top portion 2c is connected to the through groove l of the partition plate 1a.

The movable block 1 is movable relative to the fixed block 7A. In other words, it is in an "unlocked state".

(2) In FIG. 3, the left card 6a has an engaging hole 8, and the right card 6b has no retaining hole at the corresponding position to the engaging hole 8. Now, the case where the retaining holes 8 are drilled at the corresponding positions of the protrusions ta and tb of the tumbler 2 is denoted by ``2'', and the case where the retaining holes 8 are not bored is denoted by ``e''.

In the case of FIG. 3, the combination is ee, the convex part ta of the left bottom 2a falls into the left card 6a, the elongated hole 4 of the tumbler 2 is guided by the shaft 3, the tumbler 2 is tilted, and the top 2
c will overlap with the partition plate 1a.

In this state, the movable block 1 cannot move relative to the fixed block A and is in a locked state.

Further, if the right card 6b has the engagement hole 8 and the left card 6a does not have the engagement hole 8, that is,
In the case of the combination θ■, the tumbler tilts in the opposite direction to the previous one, and becomes the "locked state" as before.

■ Figure 4 shows combinations of θθ. In this case, the tumbler 2 does not tilt, the elongated hole 4 is guided by the shaft 3 and moves upward, and the top portion 2C remains in the through groove 10, in an unlocked state.

■ In the case of FIG. 5, the combination of ■■ is shown, and in this case, the state is the same as that described in FIG. 2, so it is in the unlocked state.

As explained above in ■■■■, ee or ee
If the combination is, it will be locked and ■■.

If it is ee, it will be unlocked.

By the way, in reality, in the device of the present invention, the left card 6a is inserted into the indoor side in advance, and the lock is unlocked by inserting the right matching card 6b from the outdoor side. As shown in Figure 6 (■), the combination of card 6a and card 6b is as follows.0 In the case of unlocking as shown in Figure 6 (■), card 6a card 6b ■ ■ e e ■ ■ θ e If the card is 6bFi, it becomes a matching card (duplicate key).

For example, in the case of card 6a card 6b ■ θ e ■ e ■ e ■ ■ ■ ■ ■ θ e θ e, card 6b does not become a duplicate card (duplicate key) and cannot be unlocked.

In the case of ■ in Figure 6, card 6a card 6b ■ ■ e e e e e ■ ■ The card 6b is a matching card, and the lock cannot be unlocked with any other combination of cards 6b (Explanation of the second embodiment) ゛ Next The second embodiment shown in FIGS. 7 to 11 will now be described.

In the second embodiment, the same parts as in the first embodiment are designated by 1.
00 is added, so detailed explanation thereof will be omitted. The difference between the second embodiment and the first embodiment is that the partition wall 1
1? The only difference is that the baffle plate 101b is protruded from the center of the through groove 109 of 01a? ■ Figure 7 shows cards 106a, 1
06b is not inserted through the insertion port 107, and the tumbler 102 maintains an upright position without tilting, the top portion 102C overlaps the baffle plate 101b, and the movable block 1
01 is movable relative to fixed block A and is in a locked state.

■ In Figure 8, the card 106a is ■, and the card 106b is e.
Therefore, the tumbler 2 is tilted to the left and the apex 2c is located on the left side in the through groove 109, and the tumbler 2 is also tilted to the left when the card 106a○ and the card 106b■ are in the unlocked state. 2 tilts to the right and becomes unlocked as before.

■ Figures 9 and 10 show the cases of ■■ and ee, in which the locked state is maintained for the same reason as above.

In the second embodiment, the combination of θ○ and ■θ results in an unlocked state, and the combination of ■■ and eθ results in a locked state.

■ Next, as shown in Figure 11, place the card 106 on the indoor side in advance.
In the case where the card 106b'i is inserted from the outside and the card 106b'i is inserted from the outside to unlock the door, the combination is as follows.

Card 106a Matching card 106b■
e e ■ θ ■ ■ e Other combinations, such as card 106a card 106b■
e ■ θ e eee e e e ■ e ■ ■ In the case of ee, the card 106b cannot be used to unlock the door.

In the above-mentioned embodiment, the fixed block 1 is a one-piece piece, but in consideration of mass production, it can be divided into partitions, press-molded, and then stacked to form an integral piece. By doing so, there is an advantage that the manufacturing cost is reduced. Furthermore, as is clear from the above description, the left and right bottoms 2a, 2 of the tumblers 2, 102
b.

By making the ratio of the lengths of 102a, 102b and the lengths of top portions 2c, 102C small, the bottom portions 2a, 2b, 10
Since the small movement of 2a, 102b can be amplified into a large movement of the top part 2, C, the through groove 10° 110 and the top part 2c, 1
The accuracy of the clearance with 02c is no longer required, and the reliability of operation can be obtained, so that the accuracy of the clearance with 02c is no longer required, and the reliability of operation is obtained. It is as follows.

■Card 6b that becomes a duplicate key (duplicate card) by simply replacing card 6a+ 106a on the indoor side.

106b can be easily modified.

■ By increasing the number of locking holes 8 of the card 6a+106a, the number of different keys can be easily increased.

■ There is very little risk that the information on the match card will be discovered. That is, for example, in FIGS. 2 to 5, if an attempt is made to detect whether the left bottom side 2a of the tumbler 2 has fallen into the engagement hole 8 with no card 6b inserted, the spring 5 will not be activated. There are variations in force, and it is practically impossible to distinguish between the differences in elastic force.

Therefore, it is very difficult to find out the information on the matching card from the outside, and this device can be said to be highly safe〇■ Since it uses one swinging tumbler 2, the structure is simple and its operation is reliable. be.

In the structure of the patent application No. 14433/1983 "Locking device using a card" previously filed by the present applicant, a pin-shaped tumbler was used, making it difficult to set the shear line accurately. Precision was required. On this point, in the device of the present invention, the shear line can be set with a certain margin between the through groove 109 and the top 2c of the tumbler 2, so accuracy is not required so much, the operation is reliable, and the structure is simple. It is.

Moreover, the bottom parts 2a and 2b of the tumblers 2 and 102.

102a, 102b length and top 2c + 102
By appropriately adjusting the ratio of c to the length, a locking device with low precision and reliable operation can be obtained.

[Brief explanation of the drawing]

Figure 1: Oblique view of the device of the present invention, Figure 2: 1
Front view when the cards 6a and 6b of the embodiment are not inserted, Figure 3...Same card 6a + 6b of ee
Figure 4 shows the front view when the card 6a and 6b are inserted. Figure 5 shows the front view when the ee cards 6a and 6b are inserted.
・Front view when card 6 a r 6 b of ■■ is inserted, FIG. 6 ■■...Illustrative diagram of combination of matching cards, FIG. 7...Card 106a of the second embodiment,
Front view when 106b is not inserted, Figure 8...Front view when cards 106a, 106b, also of ■θ, are inserted, Figure 9: Cards 106a, 1, also of ee
Front view when inserting 06b, Figure 10...Same card 106a. Front view when inserting 106b, FIG. 11...Illustrative view of the combination card of the second embodiment, A...fixing block, Aa...partition plate, 1,
101...Movable block, la, 101a...
Partition wall, 101b...Baffle plate, 2,102...
Swinging tumbler 12a, 102a = bottom left side, 2b
, 102b...Right bottom side, 2c, 102cm--top, 3.103... Rotating shaft, 4,104... Long hole, 5,105... Spring, 5a+105a
---Intermediate shaft, 6a. 6b, 106a, 106b--card, 7,10
7...Card insertion slot, 8.108...Engagement hole,
9°. 900. . □1,. 90. ′″′, 10
0. □Oh. μ Copper Mu 11 View Kushi Zashi Figure 1 Figure 1 ＼Futhachi to Kukoku system engineering entrance Figure 2 Figure 3 Figure 4 Figure 8 Figure 9

Claims (1)

[Claims] 1. A tumbler (2) (102) is provided in a partition section (9) of a fixed block (4) that is swingable about an axis (3) (103) and a fixed block (facing towards Shu). energizes and holds the bullet,
Convex portion (ta) provided on the tumbler (2) (102)
(tb) is the card insertion slot (7a) (7b) (107a)
) (107b) is inserted into the code card (6a) (
106a) and key card (6b) (106b), the tumbler (2) (102) moves up and down depending on the presence or absence of the retaining hole.
swings, and its top (2c) (102c) controls the locking of the movable block (1) (101) movably attached to the fixed block (4) to lock and unlock the lock. Locking device 02 using a card characterized by
, when the tumbler (2) is in an upright state, driven by the presence or absence of the retaining hole in both cards, the top of the tumbler (3) (
2c) is located in the through groove (10) of the movable block (1), and is located so as to overlap the partition wall (la) when in the inclined state. When the tumbler (102) driven by the presence or absence of a card engagement hole is in an upright state, the tumbler (102)
The locking device 04 according to claim 1, which is located so that the top (102c) of the locking block (D' The locking device according to Claims 1 to 3 is formed by forming small blocks for each section and polymerizing them integrally. 5. The left and right bottom portions (2a) of the tumbler (2) (102).
(2b) (102a) (102b) length and top (2
c) By changing the length ratio of (102c), the top part (2c) (
Claim 1 that enables amplification of the vibration of 102c)
A locking device according to items 4 to 4.