JPH0627723Y2 - Card lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement of a card lock that is locked and unlocked by operating a card-shaped key.

<Prior Art> A so-called card lock, which can be locked and unlocked by operating a card-shaped key, is disclosed in, for example, Japanese Utility Model Publication 59-196.
No. 649, No. 61-146357, and No. 62-175168.

These card locks are provided with a locking piece for locking a latch, a slide for appropriately blocking the movement of the locking piece, and a tumbler for appropriately blocking the movement of the slide, and having a tumbler insertion hole. By inserting the key from the card hole punched in the casing, the tumbler is fitted in the tumbler insertion hole, the tumbler can be moved by an appropriate amount, and the slide can be moved in the predetermined direction, and in this movable state. By moving the slide, the locking piece can be moved and the latch can be unlocked.

However, in all of these, the movement of the locking piece is prevented only by sliding, and
The slide is made movable by moving the tumbler to a predetermined position. Moreover, the tumbler is arranged at a position visible from the card hole. Therefore, the tumbler can be moved to a predetermined position while visually observing something other than the key. As a result, there is a risk of being unlocked by someone who does not have the key,
There is a problem of lacking reliability as a lock.

Further, since the tumbler is mounted in a fixed direction, there is a risk that it will be unlocked by vibration.

<Problems to be Solved by the Invention> The present invention has been proposed in view of the above circumstances, and its purpose is to lock the object to be locked by simply moving the slide by moving the tumbler. An object of the present invention is to provide a highly reliable card lock that cannot unlock the locking pieces.

<Means for Solving the Problems> The present invention solves the above problems by providing a card lock having the following features.

The locking piece (25) of the card lock of the present invention is provided with a locking means for appropriately locking the locking piece (25) in addition to the slide (23).

This locking means is a barb piece that appropriately blocks the movement of the locking piece (25).
(26), a receiving portion (25c) for detachably receiving the barb piece (26) and the locking piece (25), and a biasing means (32) for biasing the barb piece (26) in a predetermined direction. ) And.

Receptacle (25c) is the tumbler insertion hole (41) in the key (40).
Distance from the tip to the tumbler (24)… (24) to the key (4
(0) A loose fitting portion (25d) arranged at a position apart from the insertion direction side.
And the loose fitting (25d) communicating with the loose fitting (25d).
And an engaging portion (25e) disposed between the.

The loose fitting portion (25d) is adapted to allow the locking piece (25) to move in a direction in which the latch (10) can be unlocked by loosely fitting the barb piece (26). On the other hand, the engagement portion (25e) locks the barb piece (26) to prevent a predetermined movement of the locking piece (25).

The biasing means (32) constantly biases the barb piece (26) from the loose fitting part (25d) toward the engaging part (25e) and holds the barbing piece (26) in the engaging part (25e). Is.

The bar bar (26) has a key pressing part (26a). Also, loose fitting part (25d)
To the engaging part (25e).

Then, the key pressing part (26a) is pressed by the key (40) inserted at the time of unlocking, so that the loose fitting part (25e) is pushed against the biasing means (32). It is designed to be pushed into the inside of 25d).

<Operation> In the present invention, in addition to the slide, there is provided locking means for appropriately locking the locking piece, and the locking means is provided with the bar bar, the loose fitting part and the engaging part. And a biasing means for biasing the barb in a predetermined direction. By doing so, even if the slide can be moved in a predetermined direction by the movement of the tumbler, as shown in FIG.
Since the (26) is arranged in the engaging part (25e), the locking piece (2
5) is the direction in which the lock (10) of the wire (10) as the latch (10) is unlocked, that is, the movement to the left in this figure is prevented, and the lock (13) and the locking piece (25) are blocked. The locking with the locking claw (25a) will not be released. Therefore, even if the person who does not have the key moves the tumblers (24) ... (24), the locking piece (25) cannot be moved and unlocking can be prevented.

On the other hand, for unlocking, a card-shaped key (40) is inserted into the card hole. As a result, the tip of the key (40) presses the key pressing part (26a) of the bar bar (26) and pushes it into the loose fitting part (25d) from the engaging part (25e), and the engagement by the bar bar (26). The stop piece (25) is unlocked. At the same time, the tumblers (24) ... (24) are fitted into the tumbler insertion holes of the key (40), and the slide (23) becomes movable. Therefore, it can be performed by an unlocking operation similar to the conventional one of inserting the key (40).

<Embodiment> FIGS. 1 to 5 are wire locks showing an embodiment of the present invention, FIG. 1 is a sectional view showing a locked state, and FIG. 2 is a sectional view showing an unlocked state. . FIG. 3 is an exploded perspective view showing the function of the tumbler.

4 and 5 show the state when the key portion is inserted. FIG. 4 shows the positional relationship between the key portion and the tumbler, and FIG. 5 shows the positional relationship between the key portion and the barb. It is a relationship diagram shown.

Preferred embodiments of the present invention will be illustratively described in detail below with reference to the drawings.

However, the dimensions of the components described in this example,
Unless otherwise specified, the shape, the material, the relative position, etc. are not intended to limit the scope of the present invention to them, but are merely illustrative examples. In addition, the up, down, left, and right in the following description indicate up, down, left, and right with respect to the drawings.

The wire lock of the present invention is roughly divided into a wire portion (10),
It is composed of a body (20) and a key (40).

The wire portion (10) is a wire having left and right ends (11) and (12), and its left end (11) is rotatably attached to the body (2) of the body (20).
1), the other right end (12) has a bullet (13) attached to the tip, and the lever (2)
The locking claw (25a) of 5) is adapted to be detachably locked to the main body (20).

As shown in FIG. 1, the main body (20) includes a body (21) and a lid (2
2), slide (23), tumbler (24) ... (24), lever (25), barbed piece (26), and other springs, etc. The body (21) consists of each part. It serves to store.

The lid (22) is provided with a comb blade (22a) so as to engage with tumblers (24) ... (24) described below.

The slide (23) includes a plurality of tumblers (24) ... (24) (four in this example) slidably fitted in a direction orthogonal to the paper surface of FIG. 1 and a comb blade of the lid (22). It is slidable left and right along (22a), and its left end is biased by spring A (30).

As shown in FIG. 3, the tumbler (24) ... (24) has a groove (24a) in the lower part, and a distance (1) from the tip (24b) of the groove (24a).
Are different from each other. From the right side in FIG. 3 and the drawing, a spring E (34) provided in the slide (23) is biased.

The lever (25) is made of one steel plate, the lower left end (25b) is bent to the back side of the paper, and the protrusion (23a) at the right end of the slide (23).
And is urged by the spring B (31) from the left end.

The right end has a locking claw (25a), and the L-shaped hole (25c) is provided at the substantially central portion.

The hole (25c) serves as a receiving portion for releasably receiving a bar bar piece (26) described later, and is formed as a loose fitting part (26d) at an upper portion wider than the bar bar piece (26). The loose fitting portion (26d) communicates with the barbed piece (26) and a lower engaging portion (26e) having substantially the same width. or,
The position of the loose fitting part (26d) is an upper position separated from the tumbler by the same distance as the distance from the tip of the key part (40) described later to the tumbler insertion holes (41) ... (41).

The barb piece (26) is for appropriately locking the lever (25) separately from the slide (23), and the loose fitting part (26d) to the engaging part (26e) in the receiving part (25c). Is arranged in the receiving portion (25c) so as to be movable in the vertical direction over the range up to. Then, as shown in FIG. 5, the lower surface of the tip protruding from the receiving portion (25c) contacts the key (40) and is pressed by the key (40).
It becomes (26a). Further, the barb (26) is always biased downward by a spring C (32) as a biasing means so as to be positioned in the engaging portion (26e).

The key part (40) has a card shape, and the tumbler (24) ...
Holes (41) of various sizes are placed at locations corresponding to (24)… (4
1) is provided, and the tumbler (24) is placed in the holes (41) ... (41).
By inserting the tip (24b) of the (24), the position of the tumbler (24) ... (24) is determined.

In the present embodiment, the terms "latch" and "locking piece" used in the utility model registration claim mean "wire portion (10)" and "lever".
(25) ".

Next, the locked state of FIG. 1 and the movement from the state of FIG. 1 to the unlocked state of FIG. 2 will be described.

As shown in Fig. 1, the boss (13) of the wire part (10) is the main body part.
The lever (25) is locked by the locking claw (25a) of the lever (25).
(25) is biased by the spring B (31) and is moved to the right end side.

The bar bar (26) is put in the lower groove in the L-shaped hole (25c) of the lever (25), and the lever (25) does not move carelessly to the left (unlocking direction). It is like this.

Then, the card-shaped key portion (40) is inserted into the main body portion (20) through the lower card hole (27) as shown in FIG.

Incidentally, FIG. 5 is a cross-sectional view of a barb piece portion when the key portion is inserted into FIG.

Then, the upper end of the key part (40) pushes the barb piece (26) straight up to put the lever (25) into the loose fitting part (26d) from the engaging part (26e), and then the lever (25). Move to the left.

At the same time, the tips (24b)… (24b) of the tumblers (24)… (24) are inserted into the holes (41)… (41) provided in the key part (40), and the tumblers (24)… (24) As shown in Fig. 1, the vertical position is determined, the engagement of the comb blade (22a) of the lid (22) is released, and the slide
(23) becomes slidable. FIG. 4 shows the positional relationship between the key portion (40) and the tumbler (24) in this state, and the comb blades (22a) are inserted in the grooves (24a) arranged in a line. ing.

Next, the key part (40) is moved to the left.

Then, the key part (40) will have the protrusion (2) at the left end of the slide (23).
3b), press the tumbler (24) ... (24) and the spring E (3
4) Slide the slide (23) to the left along with (34).

Since the lever (25) is engaged with the right end (23a) of the slide (23), the lever (25) similarly slides to the left, unlocks the bullet (13), and causes the spring D (33) to slide. Prevent (23) from returning to its original position.

When locking, the key part (40) is not used and the castellation (13) is pushed into the insertion hole of the main body part (20) as it is.

Then, since the slide (23) is biased by the spring B (31), the slide (23) moves to the left and locks the bullet (13) with the locking claw (25a).

Then, the barb (26) is moved to the lever (2) by the spring C (32).
The lever (25) is locked so that it is not accidentally moved by being inserted into the lower groove in the L-shaped hole (25c) of 5).

The embodiment has been described above, and the wire lock has been described as an example, but it goes without saying that a lock other than the wire lock may be used.

<Effect of the Invention> Since the card lock of the present invention is locked by double locking the locking piece with the tumbler and the barb, it is not accidentally unlocked by vibration.

Further, even if a foreign object is inserted through the card hole and the tumbler and the comb blade are disengaged from each other, they are not unlocked because they are locked by the barbs.

On the other hand, unlocking can be performed by the same operation as the conventional one, in which a card-shaped key is inserted, and the operation becomes easy.

As described above, the present invention can provide a highly reliable, useful and practical card lock as a lock that is not likely to be unlocked by someone who does not have a key.

[Brief description of drawings]

1 to 5 are wire locks showing an embodiment of the present invention, FIG. 1 is a sectional view showing a locked state, and FIG. 2 is a sectional view showing an unlocked state. FIG. 3 is an exploded perspective view showing the function of the tumbler. 4 and 5 show the state when the key portion is inserted. FIG. 4 shows the positional relationship between the key portion and the tumbler, and FIG. 5 shows the positional relationship between the key portion and the barb. It is a relationship diagram shown. (10)… Wire part, (23)… Slide (24)… Tumbler, (25)… Lever (26)… Bar bar, (27)… Card hole (40)… Key part

Claims (1)

[Scope of utility model registration request] 1. A tumbler (24) ... (24) is moved by operating a card-shaped key (40) having a tumbler insertion hole (41) ... (41) to lock and unlock a slide (23), and a slide ( In the card lock in which the locking piece (25) that locks the latch (10) can be moved by the movement of (23) and the latch (10) is locked and unlocked, the locking piece (25) has a slide (23 ) Separately from the locking piece (2
A locking means for appropriately locking 5) is provided, and the locking means appropriately blocks the movement of the locking piece (25).
(26), a receiving portion (25c) for detachably receiving the barb piece (26) and the locking piece (25), and a biasing means (32) for biasing the barb piece (26) in a predetermined direction. ) And the receiving part (25c) has a tumbler insertion hole (41) in the key (40).
Distance from the tip to the tumbler (24)… (24) to the key (4
(0) A loose fitting portion (25d) arranged at a position apart from the insertion direction side.
And the loose fitting (25d) communicating with the loose fitting (25d).
And an engaging portion (25e) disposed between the locking piece (25) and the latch (10) by loosely fitting the barb piece (26). The locking part (25e) locks the barb piece (26) to prevent a predetermined movement of the locking piece (25). The biasing means (32) constantly biases the bartack piece (26) from the loose fitting part (25d) toward the engaging part (25e) and holds the barbing piece (26) in the engaging part (25e). The barb piece (26) has a key pressing portion (26a) and is movably arranged over a range from the loose fitting portion (25d) to the engaging portion (25e). Key (40) inserted when unlocking 26a)
By being pressed by the engaging portion (2) against the biasing means (32).
A card lock characterized by being pushed into the loose fitting part (25d) from 5e).