JP3023408B2 - Device storage case locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for locking an opening / closing member such as a door or a lid for opening / closing an article opening / closing port in various article storage cases.

[0002]

2. Description of the Related Art Conventionally, as a locking device for locking an opening / closing member in a closed state in an article storage case such as a floppy case for storing a large number of floppy disks, which needs to keep confidentiality, etc. Cylinder locks are used.

However, since the cylinder lock is heavy and expensive, the weight of the entire case increases and the cost increases.

Therefore, as an alternative to the cylinder lock, a locking device disclosed in Japanese Patent Application Laid-Open No. Hei 7-137763 has been proposed.

This locking device comprises: (a) a lock mechanism provided inside an opening / closing member for opening / closing an article inlet / outlet of a case main body, and a plate-like key which is operated to be inserted into and removed from the lock mechanism. (B) a locking mechanism that rotates between a locking position and an unlocking position, and a locking position that locks to the case body in conjunction with the rotation of the lever, and a release mechanism that detaches from the case body. A locking member that performs a horizontal sliding movement between the locking position and the locking position; (c) a projection provided on the locking lever; and (d) a first operation of pushing down the projection by inserting the key. The part and the second operating part that pushes up the projection by the withdrawal operation are vertically displaced and provided with a level difference in the horizontal direction, and (A) the opening is provided outside the opening / closing member. Insert the key into the lock mechanism through the key slot Thereby, the locking lever is rotated by the first operation portion and the projection to set the lock member to the unlock position,
(B) The lock member is set to the locked position by rotating the locking lever with the second operating portion and the projection by operating the key.

[0006]

According to this locking device, the locking mechanism has a simple structure consisting only of the locking lever and the locking member, and the locking lever, the locking member, and the key can be made of plastic. The locking device, that is, the weight and cost of the entire case can be reduced.

However, according to this known device, when the key is inserted, the lower second operating portion passes by the side of the projection, and the upper first operating portion engages with the projection. Since the first operation unit is configured to engage with the projection from below, that is, the first operation unit and the second operation unit are selectively operated at a slight step in the horizontal direction.
There has been a problem that the operation is likely to be uncertain due to an assembly error or backlash, or set during use.

Accordingly, the present invention provides a locking of an article storage case capable of improving the reliability of locking / unlocking operation while having basically the same configuration as that of the above-described known technique of operating a projection by operating a projection by inserting and removing a key. An apparatus is provided.

[0009]

Means for Solving the Problems The invention according to claim 1 has the following configuration.

(I) A lock mechanism provided inside an opening / closing member for opening / closing an article inlet / outlet of the case body, a key insertion port for exposing the lock mechanism to the outside, and the lock mechanism through the key insertion port. And a plate-like key that can be inserted and removed from

(Ii) The locking mechanism is configured to engage the first and second locking bodies that rotate between a locking position and an unlocking position with the case main body in conjunction with the rotation of the two locking bodies. A lock member that moves between a stop position and a position where the lock member is separated from the case body.

(Iii) The both locking bodies are provided with transmission means for transmitting the rotational power of each other.

(Iv) The first locking member has a locking projection, and the second locking member has an unlocking projection.

[0014] (v) the key has a first operating portion for rotating the withdrawing operation for the lock mechanism of the first locking member engaged with the locking projection in the facilities lock direction, the insertion operation A second operating portion that engages with the unlocking projection and rotates the second lock body in the unlocking direction.

According to a second aspect of the present invention, in the configuration of the first aspect, the first and second locks are provided to face each other, and the two locks are provided with an uneven surface which meshes and engages as a transmission means. It was done.

In the above configuration, when the key is extracted,
The first operating portion engages with the locking projection of the first locking body to rotate the locking body, and when the key is inserted, the second operating portion operates the unlocking projection of the second locking body. To rotate the lock body.

Here, the turning power of the two locks is transmitted to each other by the transmission means, and the two locks are simultaneously rotated, so that the lock member is moved between the lock and unlock positions by the key insertion / removal operation. The locking and unlocking operation is performed.

According to this configuration, the projection for locking and unlocking is provided separately for the locking and unlocking functions in the first and second locking bodies, and the locking projection is provided in the first operating section. Accordingly, the unlocking projections are separately operated by the second operation unit, so that the engagement allowance between these projections and the operation unit can be made sufficiently large.

For this reason, even if there are some assembly errors, backlash, and set-down during use, the locking / unlocking operation is reliably performed.

According to the second aspect of the present invention, the transmission of the force between the two locking bodies is performed by the meshing engagement of the concave and convex surfaces, so that the structure is simple and there is no transmission loss of the force.
The operation stability is high.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.

In this embodiment, a floppy case for storing a large number of floppy disks in an upright state is taken as an example.

This floppy case comprises a plastic drawer 2 for accommodating a floppy disk, which is provided in a plastic case main body 1 provided with a slot 1a on the front surface.

Further, the drawer 2 has a front plate 3 serving also as an opening / closing member at the front end, and the front plate 3 closes the opening 1a of the case body 1 with the drawer 2 pushed in.

The locking device for locking the front plate 3 in this closed position includes a locking mechanism 4 provided inside the front plate 3 and a plastic plate-shaped key 5 which is inserted into and removed from the locking mechanism 4. Is provided.

As shown in FIGS. 2 to 4, the lock mechanism 4 includes first and second lock members 6, 7, lock arms 8, 9 as lock members, and lock members 6, 7 with the lock members. Arm 8,
9 and connecting links 10 and 11 for connecting the connecting links 9 and 9 to each other.

Each of the locking members 6 and 7 is formed in a substantially sector shape, and a locking projection 12 and a second locking member 7 are provided on the back surface of the first locking member 6.
Unlocking projections 13 are respectively provided on the back surface of the fan so as to protrude in an elongated bar shape.
uneven surface 1 in which a, 15a and convex portions 14b, 15b are continuous
4 and 15 are formed.

The two locking bodies 6 and 7 are provided with the uneven surface 1 of each other.
4 and 15 are engaged with each other to transmit a force, and in a state in which the longitudinal directions of the projections 12 and 13 are shifted from each other by approximately 90 °, the portion corresponding to the pivot is around the horizontal shafts 16 and 17 in the front-rear direction. The locking position is such that the locking projection 12 is vertical and the unlocking projection 13 is horizontal, as shown in FIG. 4, and the locking projection 12 is horizontal, as shown in FIG. The lock projection 13 is rotatable between an unlocked position in which the lock projection 13 is oriented vertically.

One of the lock arms 8 has one end connected to the first lock 6, and the other lock arm 9 has one end connected to the second lock 7.
The lock arms 8 and 9 are linked between the lock positions shown in FIG. 4 and the unlock position shown in FIG. It can slide left and right between them. In FIG. 2 to FIG. 4, reference numeral 18 denotes an arm guide for slidingly guiding the lock arms 8, 9.

On the other hand, locking holes 19 and 20 are provided at the left and right side edges of the access opening 1a of the case body 1, and the tip ends of the lock arms 8 and 9 are locked at the locking positions.
The front plate 3 is applied and unlocked when it is fitted into the lock plate 0 and is released at the unlock position.

The lock mechanism 4 is covered by a lock cover (not shown).

The key 5 is composed of a key body 21 which actually performs an application / unlocking operation, and a wide-width knob 22 for inserting / removing operation.

The key body 21 has a first operation part 23 for operating the locking projection 12 of the first locking body 6 and a second operation for operating the unlocking projection 13 of the second locking body 7. A part 24 is provided.

An index display section 22a is provided in the lower half of the knob section 22, and a display sheet (not shown) indicating the contents of the stored floppy disk (for example, the year of creation and the display of the customer) is provided on the index section. Affixed to the display unit 22a.

As shown in FIG. 1, a concave portion 25 into which the knob 22 of the key 5 is fitted is provided in the upper portion of the outer surface of the front plate 3.
A key insertion opening 26 is provided for inserting and removing the lock mechanism 4 from the lock mechanism 4 (both locking bodies 6 and 7). In FIG. 1, reference numeral 27 denotes a transparent plate mounted on the lower portion of the recess 25 so as to face the index display portion 22a of the key 5.

Next, the operation of the locking device will be described.

In the unlocked state in which the key body 21 is inserted into the lock mechanism 4 through the key insertion slot 26, as shown in FIG.
Is located below the locking projection 12 of the first locking body 6, and the second operating section 24 is located on the side of the unlocking projection 13 of the second locking body 7. .

When the key 5 is removed from this state, the locking projection 12 is moved to the first operating section 23 as shown in FIGS.
, The first locking body 6 is rotated to the locking position, and the turning power is transmitted to the second locking body 7 by the uneven surfaces 14 and 15, and the locking body 7 is simultaneously rotated to the locking position. .

As a result, the lock arms 8 and 9 slide to the locking position, and the front plate 3 is locked in a state where the access opening 1a is closed.

Further, since the key 5 is removed in this state, the contents of the stored floppy disk can be kept secret from a third party.

Next, when the key body 21 is inserted in this locked state, the first operating portion 23 passes by the side of the locking projection 12, while the unlocking projection 13 is pushed down by the second operating portion 24. Then, the second locking body 7 rotates to the unlocking position, and at the same time, the first locking body 6 also rotates to the unlocking position.

As a result, the lock arms 8, 9 slide to the unlock position, the front plate 3 becomes free with respect to the case body 1, and the drawer 2 can be taken in and out.

An index function is performed by the index display section 22a of the key 5.

Other Embodiments (1) In the above embodiment, the access port 1 of the case body 1
Lock holes 19 and 20 are provided in the rim of a, and the distal ends of the lock arms 8 and 9 are engaged and disengaged from the lock holes 19 and 20 to perform the locking and unlocking operations. Doorway 1
It is also possible to adopt a configuration in which a protruding edge is provided at the edge of a, and the distal ends of both lock arms 8 and 9 are locked and released inside the protruding edge to perform application and unlocking operations.

(2) In the above embodiment, the turning movement of the locking members 6 and 7 is converted into the sliding movement of both lock arms 8 and 9 to perform the locking / unlocking operation. ,
An arm as a lock member protrudes integrally with the lock member 7, and by rotating the lock members 6 and 7, the arm is disengaged from a lock hole or a protruding edge portion to perform a lock / unlock operation. Is also good.

(3) As the transmission means between the locking members 6 and 7, the relatively large uneven surface 14, 1 described in the above embodiment is used.
Instead of 5, a toothed small uneven surface of the gear may be provided.

(4) In the above embodiment, a drawer type floppy case is taken as an example. However, the present invention provides a floppy case composed of a case main body having an access port on the upper surface and an upper lid for opening and closing the access port. In addition, the present invention can be widely applied to not only a floppy case but also various kinds of article storage cases such as a letter case and an accessory case.

[0048]

As described above, according to the present invention, in a locking device in which a projection is operated by operating a projection by inserting and removing a key, the projection for locking and unlocking is separately provided for locking and unlocking functions. Provided separately in the first and second locking bodies,
The locking projection is operated by the first operation unit, and the unlocking projection is operated by the second operation unit.
Are separately operated by the operating portions, so that the engagement allowance between these projections and the operating portion can be made sufficiently large.

Therefore, even if there are some assembly errors, backlash, or set-down during use, the locking and unlocking operation is performed reliably.

According to the second aspect of the present invention, since the force is transmitted between the two locking bodies by the meshing engagement of the concave and convex surfaces, the structure has a simple structure with no loss of force transmission.
The operation stability is high.

[Brief description of the drawings]

FIG. 1 is a perspective view of a floppy case equipped with a locking device according to an embodiment of the present invention.

FIG. 2 is a front view of the unlocking state of the locking device as viewed from the inner side of the case front plate.

FIG. 3 is a front view of the state during the locking.

FIG. 4 is a front view of the locked state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Case main body 2 Drawer 3 Drawer front plate (opening / closing member) 4 Locking mechanism 6 1st locking body 7 2nd locking body 14, 15 Uneven surface (transmission means) 14a, 15a Recess 14b, 15b Convex 8, 9 Lock arm (lock member) 19, 20 Locking hole of the case main body to which the lock arm is disengaged 5 Key 21 Key main body 23 First operation unit of key main body 24 Second operation unit of the same 26 Key insertion port

Claims (2)

(57) [Claims] An article storage case locking device having the following configuration. (i) A lock mechanism provided inside an opening / closing member for opening / closing an article access port of the case body, a key insertion port for exposing the lock mechanism to the outside, and insertion / removal of the lock mechanism through the key insertion port. A key in the form of a plate. (ii) The locking mechanism includes a first and a second locking body that rotates between a locking position and an unlocking position, and a position that is locked to the case body in conjunction with the rotation of the two locking bodies. And a lock member that moves between a position where the lock member is detached from the case body. (iii) The both locking bodies are provided with transmission means for transmitting the rotational power of each other. (iv) The first locking body is provided with a locking projection, and the second locking body is provided with an unlocking projection. (v) in the key, a first operation portion for rotating the withdrawing operation for the lock mechanism of the first locking member engaged with the locking projection in the facilities tablets direction, the unlocking by insertion operation And a second operating portion that engages with the projection for turning the second locking body in the unlocking direction. 2. The locking device according to claim 1, wherein the first and second locking members are provided to face each other, and as the transmission means, the two locking members are provided with an uneven surface which meshes and engages. Device storage case locking device.