JPH07137763A - Locking device of container case of article - Google Patents

Abstract

PURPOSE:To realize lightening or a case and cost down thereof and improve the appearance. CONSTITUTION:A locking mechanism 4 composed of a lock lever 6 rotating between the locking position and the unlocking position and lock arms 7, 7 sliding between the locking position fixd to the protrusive edge 13 of the case body 1 by interlocking with the rotary motion of the lock lever 6 and the unlocking position separating from the protrusive edge 13, is provided at the inside or the front plate of a drawer opening or closing the inlet and outlet of the case body 1. And the lock lever 6 of locking mechanism 4 is rotated by a key 5 provided with the first and second manipulating parts 11, 12 to lock or unlock it.

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 loading / unloading 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 that needs to be kept secret, it is generally used as a locking device. Cylinder locks are used.

[0003]

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

Further, since the front surface of the cylinder lock is exposed to the outer surface of the opening / closing member, there is a drawback in that, particularly in the case of a plastic case, the appearance of the case is impaired due to the discomfort of the material of the case and the cylinder lock.

Therefore, the present invention provides a locking device for an article storage case, which can reduce the weight of the case, reduce the cost, and enhance the appearance of the case.

[0006]

According to a first aspect of the present invention, there is provided a lock mechanism provided inside an opening / closing member for opening and closing an article loading / unloading opening of a case body, and a key insertion opening for exposing the locking mechanism to the outside. The lock mechanism includes a plate-like key that is inserted into and removed from the lock mechanism through the key insertion port, and the lock mechanism includes a lock lever that rotates between a lock position and an unlock position, and a lock lever of the lock lever. It comprises a locking member that moves between a locking position where it is locked to the case main body and an unlocking position where it is disengaged from the case main body, interlocking with the rotation operation, and the locking lever rotates integrally with the lever. On the other hand, a protrusion is provided, on the other hand, the key is composed of a key body and a knob portion for inserting / removing operation, and the key body is engaged with the protrusion by an inserting operation with respect to the locking mechanism to unlock a locking lever. For the first operation part that is rotated to Ri engages a projection in which the second operating portion for rotating the locking lever in the locking direction is provided.

According to a second aspect of the present invention, in the structure of the first aspect, the inward projecting edge portion is provided at the edge of the article loading / unloading opening of the case body, while the locking member of the locking mechanism is the locking lever. It is configured such that it can slide between a locked position where it is locked to the projecting edge portion and an unlocked position where it is disengaged from the projecting edge portion in conjunction with the rotating operation of the.

According to a third aspect of the present invention, in the structure of the first or second aspect, an index display section for displaying a headline is integrally provided on the key knob section.

[0009]

In the above structure, when the key is inserted,
The first operating portion of the key and the projection of the locking lever set the lever and the locking member to the unlocked position, and the opening / closing member is in a state where it can be freely opened and closed.

On the other hand, when the key is pulled out, the second operating portion operates the projection to set the locking lever and the locking member to the locking position, and the opening / closing member is locked in the closed state.

According to this structure, since the locking mechanism has a simple structure composed only of the locking lever and the locking member, and the locking lever and the locking member, and the key may be made of plastic, the locking device, that is, the entire case It is possible to realize weight reduction and cost reduction.

Further, since the lock lever is rotated between the unlocked position and the locked position by the first and second operating portions of the key, when the lock lever is held at one position by the spring. Compared with the above, since the spring is not necessary, the number of parts is small and the assembly is easy, and the spring has no fatigue and the durability is high.

Further, according to the second aspect of the present invention, since the locking member is engaged with and disengaged from the projecting edge portion provided at the edge of the article loading / unloading opening of the case body, for example, on the case body side. Compared with the case where a through hole is provided and the locking member is engaged with and disengaged from the through hole to lock / unlock, the engaged / disengaged portion of the locking member is not exposed to the outside, which may impair the appearance. Absent.

On the other hand, according to the structure of claim 3, since the key exhibits the index function with the key inserted,
There is no need to set a separate index. Further, since the index function is lost when the key is extracted (locked state), the contents can be kept secret from a third party.

[0015]

Embodiments of the present invention will be described with reference to the drawings.

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

This floppy case is made up of a plastic case body 1 having a loading / unloading opening 1a on the front surface thereof, and a plastic drawer 2 for accommodating a floppy disk, which is freely removable.

Further, the drawer 2 is provided with a front plate 3 which also serves as an opening / closing member at the front end, and the drawer 2 is pushed in as shown in FIG.
Is blocked.

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

As shown in FIGS. 2 to 4, the lock mechanism 4 is composed of a lock lever 6 and a pair of left and right lock arms 7, 7 as lock members.

The locking lever 6 has a short cylindrical mounting portion 8 at the center thereof, and the mounting portion 8 is fitted into a short columnar shaft portion 9 horizontally projected on the inner surface of the front plate 3. By
The shaft 9 is attached to the front plate 3 so as to be rotatable between the unlocked position shown in FIG. 3 and the locked position shown in FIG.

Further, the locking lever 6 is integrally provided with a projection 10 on the outer periphery of the mounting portion 8 which is rotated by a key 5 as described later.

Both ends of the lock arms 7 and 7 are rotatably connected to both ends of the locking lever 6 by pins 11 and 11 and slots 12 and 12, respectively, and are interlocked with the rotation operation of the locking lever 6. Both arms 7, 7 can slide in the left-right direction between the unlocked position shown in FIG. 3 and the locked position shown in FIG.

On the other hand, projecting edge portions 13 and 13 projecting inward are provided at both left and right edge portions of the inlet / outlet opening 1a of the case body 1, and both arms 7 and 7 are located at the locking position.
It locks inside 13 in a barbed manner and, at the unlocked position, the ridges 13, 1
The front plate 3 can be locked / unlocked by detaching it from 3.

The key 5 is composed of a key body 14 that actually performs locking / unlocking operation, and a wide knob portion 15 for inserting / removing operation.

The key body 14 has a protrusion 10 of the locking lever 6.
There is provided a first operation section 16 for pushing down and a second operation section 17 for pushing up the protrusion 10.

An index display portion 15a is provided in the lower half portion of the knob portion 15, and a display sheet (not shown) in which the contents of the stored floppy disk (for example, year of preparation, customer's display) is described is the index. It is attached to the display unit 15a.

On the other hand, the front plate 3 has a key 5 at the upper part of the outer surface.
A recess 18 into which the knob 15 is fitted is provided, and the key body 14 is provided on the lower step surface of the recess 18.
A key insertion opening 19 for inserting / removing into / from (the protrusion 10 of the locking lever 6) is provided.

In FIGS. 1 and 2, 20 is a transparent plate attached to the lower portion of the recess 18 so as to cover the index display portion 15a of the key 5, 21 is a lock cover that covers the lock mechanism 4, and 22 is a handle of the front plate 3. Is a notch for forming.

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

When the floppy case is used (when the floppy disk is taken in and out), the key 5 is set on the front plate 3. That is, as shown in FIG. 3, the key body 14 is inserted into the lock mechanism 4 via the key insertion port 19.

In this state, the first operating portion 16 of the key body 14 pushes the protrusion 10 of the locking lever 6 downward to set the lever 6 and both lock arms 7, 7 to the unlocked position. Therefore, the front plate 3 is free from the case body 1, and the drawer 2 can be put in and taken out.

Further, the index function of the key 5 is performed by the index display portion 15a of the key 5.

On the other hand, when the key 5 is pulled out while the drawer 2 is pushed in, the protrusion 10 of the locking lever 6 is pivotally operated by the second operating portion 17 of the key body 14, so that the lever 6 and both lock arms 7 are moved. , 7 are set in the locked position and the front plate 3
Is locked in a state in which the inlet / outlet opening 1a is closed.

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

Other Embodiments (1) In the above embodiment, the insertion / removal opening 1a of the case body 1
The projecting edge portion 13 is provided at the mouth edge portion of each of the lock arms 7 and 7, and both lock arms 7 and 7 are locked / disengaged inside the projecting edge portion 13 to perform the locking / unlocking operation. It is also possible to provide a through hole in the rim portion and insert / remove the tip portions of both lock arms 7, 7 into / from the through hole to perform the locking / unlocking action.

(2) In the above embodiment, the rotational movement of the locking lever 6 is converted into the sliding movement of the lock arms 7, 7 to perform the locking / unlocking operation.
Further, an arm as a lock member may be integrally projected, and the arm may be engaged with and disengaged from the projecting edge portion 13 or the through hole by the pivotal movement of the lever 6 so as to perform the locking / unlocking action. .

(3) Although the drawer type floppy case has been taken as an example in the above embodiment, the present invention is a floppy case constituted by a case body having an upper and lower opening / closing opening and an upper lid for opening / closing the loading / unloading opening. Further, the present invention is not limited to the floppy case, but can be widely applied to various kinds of article storage cases such as letter cases and small item cases.

[0039]

As described above, according to the present invention, the locking mechanism has a simple structure composed only of the locking lever and the locking member, and the locking lever and the locking member, and the key may be made of plastic. It is possible to reduce the weight and cost of the locking device, that is, the entire case.

In addition, since the lock lever is rotated between the unlocked position and the locked position by the first and second operating parts of the key, the spring is held in one position. Compared with the above, since the spring is unnecessary, the number of parts is small and the assembly is easy, and the spring has no settling and is highly durable.

Further, according to the second aspect of the present invention, since the locking member is engaged and disengaged with the projecting edge portion provided at the rim of the article loading / unloading opening of the case body, the case body side, for example. Compared with the case where a through hole is provided and the locking member is engaged with and disengaged from the through hole to lock / unlock, the engaged / disengaged portion of the locking member is not exposed to the outside, which may impair the appearance. Absent.

On the other hand, according to the invention of claim 3, since the key exhibits the index function with the key inserted,
There is no need to set a separate index. Moreover, since the index function is lost in the state where the key is extracted, the contents can be kept secret from a third party.

[Brief description of drawings]

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

FIG. 2 is a partially enlarged vertical cross-sectional view of the case with the loading / unloading opening closed.

FIG. 3 is a sectional view of the unlocked state taken along the line III-III of FIG.

FIG. 4 is a view corresponding to FIG. 3 in a locked state.

[Explanation of symbols]

 1 Case Main Body 2 Drawer 3 Front Panel of Drawer (Opening / Closing Member) 4 Locking Mechanism 6 Locking Lever 7, 7 Lock Arm (Locking Member) 13 Projected Edge of Case Main Body with which Lock Arm Disengages 5 Key 14 Key Body 16 Key Body First operation part 17 of the same second operation part 15 Key picking part 15a Index display part 19 Key insertion port

Claims (3)

[Claims] 1. A lock mechanism provided inside an opening / closing member for opening and closing an article loading / unloading port of a case body, a key insertion port for exposing the locking mechanism to the outside, and a lock mechanism for the locking mechanism through the key insertion port. The locking mechanism includes a plate-shaped key that is inserted into and removed from the case, and the locking mechanism is a locking lever that rotates between a locking position and an unlocking position; The locking lever is provided with a protrusion that rotates integrally with the lever, which comprises a locking member that moves between a locking position that stops and an unlocking position that separates from the case body.
The key is composed of a key body and a knob portion for inserting / removing operation. The key body is engaged with the protrusion by the inserting operation with respect to the locking mechanism to rotate the locking lever in the unlocking direction. A locking device for an article storage case, comprising: an operating portion; and a second operating portion that engages with the protrusion by a pull-out operation to rotate the locking lever in the locking direction. 2. An inwardly projecting projecting edge portion is provided at a lip portion of an article loading / unloading port of a case body, and a locking member of a locking mechanism is interlocked with a rotating operation of a locking lever. 2. The locking device for the article storage case according to claim 1, wherein the locking device is configured to be slidable between a locking position for locking the locking member and an unlocking position for releasing the protruding edge portion. 3. The locking device for the article storage case according to claim 1, wherein an index display section for displaying a headline is integrally provided on the key picking section.