JPH0639019Y2 - Locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a locking device for unlocking a card key having a hole or a cutout of a predetermined shape.

[Prior Art] Conventionally, various locking devices such as cylinder locks have been used, but most of the keys used in these locking devices are so-called key-shaped consisting of a grip part and a concavo-convex part that follows. Yes, this is inserted into the key hole provided in the main body of the locking device and rotated to unlock.

[Problems to be Solved by the Invention] However, a key having such an uneven portion is inconvenient to carry in a pocket or the like due to its irregular shape or the uneven portion. However, when I put it in my wallet or purse, the key didn't move inside, and it was inconvenient to carry. Further, since the key hole of a usual locking device is small, it is difficult to insert the key, and there is a problem that the operation is troublesome especially when the unlocking operation is performed in the dark. Therefore, for example, a locking device using a card key as proposed in Japanese Utility Model Publication No. 61-131465 is proposed. However, the locking device disclosed in the above publication has a problem that the card key is easily worn by the pin urged when the card key is inserted or pulled out.

Therefore, the present invention has adopted the following configuration in order to solve the above problems.

[Means for Solving the Problems] That is, the gist of the present invention is a locking device for inserting and unlocking a card key having a hole or a cutout of a predetermined shape into the main body case. A slit into which the card key is inserted, a locking member provided in the main body case and biased in the locking direction, and an unlocking member that pushes the locking member in the unlocking direction against the biasing force. Locking means, a rotating member provided in the main body case and biased in a predetermined rotation direction, and provided in the rotating member, and in the slit when the rotating member is in the locked state position by the biasing. An exposed first convex portion, a second convex portion provided on the rotating member and exposed in the slit when the rotating member is rotated to a predetermined position against the bias, and Provided and above solution The first and second convex portions and the concave portion have a regular card key inserted into the slit and press the first convex portion to set the rotary member to a predetermined position. The unlocking means can enter the recess only when it is rotated to the position and the second protrusion is engaged with the hole or notch of the card key to further rotate the rotating member to the next predetermined position. The locking device is arranged in a positional relationship, and the unlocking means is configured to push back the locking member only when a part of the unlocking device can enter the recess.

[Operation] When a regular card key is inserted into the slit, the first concave portion is first pressed to rotate the rotating member as the card key enters. Then, when rotated to a predetermined position, the second convex portion is exposed in the slit, meshes with the hole or notch of the card key, and the rotating member is further rotated to the next predetermined position. Then, the concave portion is arranged at a position where the unlocking means can enter. As a result, a part of the unlocking means can enter the recess, and only in this state, the locking member can be pushed back to perform the unlocking operation. When the card key is pulled out from the slit, the rotating member returns to its original position by the urging force.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a sectional view in a locked state, and FIG. 2 shows a sectional view taken along the line AA.

The door 2 is fitted from the upper part of the main body case 1, and the notch 2a provided in the door 2 and the locking portion 4a of the locking member 4 biased to the left in the drawing by the spring 3 are engaged and locked. .
The bolt 2 is also biased in the unlocking direction by a spring 2c having a spring cap 2b. In the locked state, the rotating member 5 is biased by the spring 6 and is in the initial position, and contacts the projection 7a of the unlocking means 7 to limit the unlocking operation. Further, a flange 5a is provided on the rotating member 5 so that the protrusion 5 is provided at a predetermined position on the flange 5a.
b and 5c are arranged at intervals. Further, a convex portion 5d is provided at a position opposite to the convex portion 5c across the convex portion 5b, and an unlocking hole 5e (a concave portion in the present invention) is formed between the convex portion 5d and the convex portion 5c. . The collar 5a is notched between the concave portion 5d and the convex portion 5b. The body case 1 is provided with a slit 8 into which the card key 9 shown in FIG. 3 can be inserted. The card key 9 is provided with a notch 10 near the edge. Cutout 10
Is composed of an elongated groove 10a and notches 10b, 10c formed at a predetermined interval so as to project from the groove 10a.

Next, the unlocking operation will be described with reference to FIGS. 4 to 6. When the card key 9 is inserted through the slit 8 in the direction shown by the arrow in FIG. It is rotated in the direction of the arrow in FIG. Then, the convex portion 5b is exposed in the slit 8, and when the card key 9 is further inserted, the convex portion 5b and the notch are formed.
10b meshes with each other, and the rotating member 5 is further rotated in the arrow direction. At this time, the collar 5a is engaged with the groove 10a. Similarly, the convex portion 5c exposed in the slit 8 meshes with the notch 10c, and the rotating member 5 is rotated until the front edge 9a of the card key 9 comes into contact with the slit bottom portion 8a. By the above rotation, the unlocking hole 5e projects
It is rotated to the position facing 7a, and the unlocking operation is possible. FIG. 5 is a sectional view taken along the line BB in FIG. 4 at this time. After that, as shown in FIG. 6, when the unlocking means 7 is pressed rightward in the figure, the projection 7a enters the unlocking hole 5e, and the locking member 4 is moved rightward in the figure against the spring 3. Then, the bolt 2 is released from the locking member 4 and is biased by the spring 2c.
It is unlocked by pushing it upward in the figure by 2b. After unlocking,
The unlocking means 7 is returned to the initial state by the spring 3, the rotating member 5 is biased by the spring 6 and rotated in the direction opposite to the unlocking operation described above, and the card key 9 is ejected from the slit 8.

In this embodiment, by providing the collar 5a, the protrusions 5b, 5c,
5d cannot be seen from the right side of the slit 8 in FIG.
The protrusions 5b and 5c are exposed to the inside of the slit 8 for the first time due to rotation, and therefore their arrangement cannot be confirmed, which has an effect of preventing unauthorized unlocking by a wire or the like. Further, since the convex portions 5b, 5c are successively meshed with the notches 10b, 10c in response to the insertion operation of the card key 9, there is no fear of damage due to abrasion or the like.

In this embodiment, among the convex portions, 5d corresponds to the first convex portion in the present invention, and 5b, 5c and the collar 5a correspond to the second convex portion.

The embodiment described above is one embodiment of the present invention, and the present invention is not limited to these, and includes various aspects without departing from the scope of the invention.

For example, if the notch of the card key is provided at a predetermined position of each edge instead of one, it can be unlocked at a position other than the specific edge of the card key, which is convenient for unlocking in the dark.

[Effects of the Invention] As described above, according to the locking device of the present invention, there is no damage due to wear of the card key during the unlocking operation. Furthermore, since the card key can be used for unlocking, the card key can be inserted into the slit of the lock body and moved easily compared to the case where a normal key is inserted into the key hole and turned to unlock it. It is possible to easily operate even with such as. In addition, the card key having the hole or the notch can be easily manufactured, and is easy to carry in a wallet or a purse, which is convenient for carrying.

[Brief description of drawings]

FIG. 1 is a front sectional view of the embodiment in a locked state, and FIG.
AA sectional view, FIG. 3 is a plan view of the card key, FIG. 4 is a front sectional view during unlocking operation, FIG. 5 is its BB sectional view, and FIG. 6 is a front sectional view during unlocking. The figure is shown. 1 ... Main body case, 3, 6 ... Spring, 4 ... Locking member, 5 ... Rotating member, 5b, 5c, 5d ... Convex portion, 5e ... Unlocking hole, 7 ... Unlocking means, 8 …… Slit, 9 …… Card key, 10 …… Notch

Claims (1)

[Scope of utility model registration request] 1. A locking device for inserting and unlocking a card key having a hole or cutout of a predetermined shape in a main body case, the slit being provided in the main body case, into which the card key is inserted, and the main body case. A locking member that is urged in the locking direction, and unlocking means that pushes the locking member back in the unlocking direction against the urging force; A biased rotating member, a first convex portion provided on the rotating member and exposed in the slit when the rotating member is in the locked state position by the bias, and provided on the rotating member, A second convex portion that is exposed in the slit when the rotating member is rotated to a predetermined position against the bias, and a part of the unlocking means that is provided on the rotating member and can be inserted. With a recess In the first and second convex portions and the concave portion, a regular card key is inserted into the slit and the first convex portion is pushed to rotate the rotating member to a predetermined position, and the second convex portion is a hole of the card key. Alternatively, the unlocking means is arranged in such a positional relationship that the unlocking means can enter into the recess only when the rotary member is further meshed with the notch and further rotated to the next predetermined position. The locking device is configured so that the locking member can be pushed back only when the locking member can enter the recess.