JP2001072171A - Locking and unlocking device for commodity showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wrong unlocking by a method wherein the unlocking is only made possible by operations of a first magnetic device working in the direction of axis X and a second magnetic device working in the direction of axis Y. SOLUTION: In the case where a wrong customer carrying a permanent magnet tries to unlock a locking device and applies the permanent magnet to the locking device in the direction of axis X, a working of magnetizing is produced at a magnetizing means 14c of a main locking piece 14, but the main locking piece 14 is prevented by a holding means 15a of an auxiliary locking piece 15 from moving in the direction of magnetizing and therefore unlocking is not made with a locking protuberance 14a checked from retreating from a locking hole 8. On the other hand, when the wrong customer applies the permanent magnet in the direction of axis Y, the magnetizing means 15c of the auxiliary locking piece 15 moves in the direction of magnetizing, allowing the holding means 15a to be retreated from a part 20 to be held, however the locking protuberance 14a of the main locking piece 14 is still inserted into and held by the locking hole 8 by working of a repulsive means 14b and unlocking cannot be made, keeping an inner case 5 closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display case used for selling or renting a recorded compact disc (hereinafter referred to as a "CD") or other products so that the customer cannot lock the case freely. Device for

[0002]

2. Description of the Related Art For example, a recorded CD is packaged in a hard case together with a jacket sheet on which photographs of artists and the like are posted, and is sold or rented at stores. However, some customers who come to the store are fraudulent stealing jacket sheets wrapped in hard cases.

[0003] Such a fraudulent person tends to steal only the jacket sheet and leave the CD itself in the store together with the hard case.

[0004]

Therefore, in recent years, it has been proposed that a product in which a CD and a jacket sheet are packaged in a hard case is further stored in a display case and locked so that the display case cannot be opened freely. Have been.

[0005] For example, the present applicant also provides a display case provided with a locking device and an unlocking device for releasing the locking. This display case is provided with a device for locking the inner fitting wall of the inner case from the outer case removably fitted. This locking device has a configuration in which a locking projection of a lock piece is made to enter and retract freely into a lock hole formed in an inner fitting wall of an inner case, and the lock piece is formed by a leaf spring that constantly urges the locking projection in the entry direction. Have been. Therefore, in the display state at the store, the locking projection of the lock piece enters and locks the lock hole, so that the customer cannot open the display case freely.

On the other hand, the unlocking device is composed of a table-top base plate having an insertion space in which the locking device portion of the display case can be inserted, and a magnet such as a permanent magnet is provided inside the insertion space. I have. Therefore, when the customer wants to purchase or rent a product, the clerk inserts the display case into the insertion space of the unlocking device, and the lock piece made of the leaf spring is attracted to the magnet, and the lock piece is inserted into the lock hole. , You can open the display case and take out the goods inside. This unlocking operation is performed in the insertion space of the unlocking device and cannot be visually recognized from the outside, so that the customer does not know the principle of unlocking.

However, a fraudulent visitor senses that the unlocking device uses some kind of magnet, visits the store with his own permanent magnet, steals the clerk's eyes, and removes the display case. The incident trying to open is unending.

[0008] In this regard, in the above-described prior art, the lock hole is simply locked with one lock piece.
For unlocking, it is a structure that can be easily unlocked by pulling the lock piece with one magnet, so there is a problem that if an unauthorized customer repeats trial and error with the magnet, it is unlocked without difficulty. .

[0009]

SUMMARY OF THE INVENTION The present invention provides a locking device for a product display case and an unlocking device therefor which solve the above-mentioned problems.

Therefore, the locking device of the present invention is configured as a means for locking a fitting wall of an inner case from an outer case in a product display case having an inner case and an outer case which are removably fitted. A lock hole formed in the inner fitting wall of the inner case, a main lock piece provided in the outer case and movable in the X-axis direction in a direction penetrating the lock hole, and the X-axis provided in the outer case. And an auxiliary lock piece that can move forward and backward in the Y-axis direction intersecting with the main lock piece.
A locking projection which enters the lock hole from the X-axis direction, a resilient means for constantly urging the locking projection in the entering direction, and a resilient means which opposes the resilient means when a magnet is arranged on the X-axis outside the outer case. Magnetic locking means for retracting the locking projection from the lock hole by means of the auxiliary locking piece. The auxiliary locking piece advances in the Y-axis direction and locks on the locked portion of the main locking piece, thereby preventing the locking projection from retreating. It is characterized by comprising locking means and magnetic attaching means for retracting the locking means from the locked portion when a magnet is arranged on the Y axis outside the outer case.

The auxiliary lock piece includes a resilient means which advances in the Y-axis direction and constantly urges the locking means for locking to the locked portion of the main lock piece in the advance direction. It is preferable that the magnetic attaching means is configured to retreat the locking means from the locked portion against the resilient means by a magnet arranged on the Y axis outside the outer case.

Also, the unlocking device of the present invention is configured as a means for unlocking the locking device of the product display case having the above-described configuration, and the insertion space in which the product display case can be freely inserted. The first magnet means facing the outer case from the X-axis direction and the second magnet means facing the outer case from the Y-axis direction are provided inside the insertion space invisible from the outside. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 illustrates a recorded CD as an example of a product to be stored in a display case. The CD 1 is packaged in a hard case 2 together with a jacket sheet (not shown). Commodity 3 is constituted as a whole. It should be appreciated that the product display case of the present invention can be used not only for the products shown in the drawings but also for various products.

The display case 4 includes an inner case 5 and an outer case 6 which are detachably fitted to each other. The inner case 5 is fitted into the outer case 6 with the product 3 stored in the inner case 5. In the case of the illustrated embodiment, the inner case 5 is formed in a dish shape capable of storing the product 3, while the outer case 6
Is formed in a box shape in which the inner case 5 is slid and inserted into the inner case 5 through the opening 7 on the side, and the inner case 5 is inserted into the outer fitting wall 6a of the outer case 6 in a state of being slid and inserted.
Is internally fitted. However, the display case 4 of the present invention is not limited to such a slide fitting structure. For example, similarly to a hard case of a CD, the inner and outer cases 5 and 6 formed in a large and small dish shape are hinged. The inner and outer cases 5 and 6 may be closed so that the inner fitting wall 5 a of the inner case 5 is fitted inside the outer fitting wall 6 a of the outer case 6.

Therefore, a lock hole 8 is provided in the inner fitting wall 5a of the inner case 5. In the illustrated example, the lock hole 8 is formed so as to penetrate the inner fitting wall 5a.
May be formed in a bottomed hole that is recessed from the outer surface. On the other hand, the outer fitting wall 6a of the outer case 6 has a main lock piece and an auxiliary lock piece, which will be described later, which are located at positions corresponding to the lock holes 8 when the inner case 5 is fitted inside. A lock housing 9 is provided, and the lock housing 9 forms a part of the outer case 6.

Although the unlocking device 10 is only schematically shown, at least a portion of the display case 4 near the bottom wall 6b of the outer case 6 including the locking housing 9 (wall facing the opening 7). A table-top base is formed in which an insertion space 11 is formed so that the display case 4 can be freely inserted, and a direction in which the lock case 8 penetrates the display case 4 to be inserted inside the insertion space 11 that cannot be visually recognized from the outside. The first magnet means 12 faces the top wall 9a of the lock housing 9 from the X axis direction, and the second magnet means 13 faces the side wall of the lock housing 9 from the Y axis direction intersecting the X axis. The first magnet means 1
The second and second magnet means 13 are constituted by permanent magnets, but may be constituted by electromagnets connected to a power supply.

[First Embodiment] FIGS. 2 to 4 show a first embodiment of the main components of a locking device according to the present invention. A locking housing 9 is provided with a main member which is movable back and forth in the X-axis direction. A lock piece 14, an auxiliary lock piece 15 that can move forward and backward in the Y-axis direction, and reset means 16 are provided therein.

The main lock piece 14 has a locking projection 14a which enters the locking hole 8 from the X-axis direction through the window hole 17 of the locking housing 9, and a resilient means for constantly urging the locking projection 14a in the entering direction. 14b and the top wall 9 of the lock housing 9
and a magnetic attachment means 14c for retracting the locking projection 14a from the lock hole 8 against the resilient means 14b when the first magnet means 12 on the X axis is arranged on the outer side surface of "a".

In the illustrated embodiment, the main lock piece 14
The first magnet means 12 is formed by a leaf spring formed by bending a single metal plate that can be magnetically attached to the first magnet means 12, and a pair of wing pieces extending from both sides from a locking projection 14a bent substantially in a V shape. Forming the resilient means 14b 14b, the resilient means 14b
By facing the flat surface of the leaf spring in the X-axis direction at the portion 14b, the resilient means 14b, 14b themselves also serve as the magnetic attaching means 14c, 14c. And
By locking or fixing the ends of the resilient means 14b, 14b to the front and rear walls 9b, 9b of the lock housing 9,
The locking projection 14a is projected from the window hole 17. At this time, the locking projection 14a bent substantially in a V shape is formed by the bent piece facing the bottom wall 6b of the outer case 6 by the bent piece facing the inner case 5.
Vertical surface 18 substantially perpendicular to the opening and closing movement direction RF
On the other hand, a guide inclined surface 19 that is inclined with respect to the opening / closing movement direction RF is formed by a bent piece facing the opening 7 of the outer case on the opposite side. Note that the upper surface of the one magnetic attaching means 14c is a locked portion 20.

The auxiliary lock piece 15 is advanced in the Y-axis direction from the side of the main lock piece 14 to lock the locked portion 2 of the main lock piece 14.
0, a locking means 15a for preventing the locking projection 14a from retreating, a resilient means 15b for constantly urging the locking means 15a in the forward direction, and Y on the outer surface of the side wall of the locking housing 9. When the second magnet means 13 on the shaft is arranged, the locking means 15a is connected to the locked part 2 against the resilient means 15b.
Magnetic attachment means 15c for retreating from zero.

In the illustrated embodiment, the resilient means 15b comprises:
As will be described later, the spring wire is made of a spring wire capable of elastic deformation not only in the Y-axis direction but also in the X-axis direction, and the mounting seat 15d provided at the tail end of the spring wire is fixed or fixed to the side wall of the lock housing 9. . The locking means 15a and the magnetic attaching means 15c are formed by bending a metal plate which can be magnetically attached to the second magnet means 13, are fixed to the tip of the spring wire, and have a flat surface facing the Y-axis direction. The bent piece portion constitutes the magnetic attaching means 15c, and the bent piece portion intersecting the locked portion 20 formed on the upper surface of the main lock piece 14 constitutes the locking means 15a. At this time, the upper edge of the locking means 15a forms a cam portion 21 having a downward slope from the base to the tip.

The reset means 16 comprises a pin which is freely inserted into the top wall 9a of the lock housing 9 so as to be able to advance and retreat.
6a is brought into contact with the upper surface of the main lock piece 14,
The tail end 16b is allowed to protrude from the top wall 9a.

FIG. 2 shows a state in which the display case 4 is closed by fitting the inner case 5 into the outer case 6. In this state, the locking projection 14 a of the main lock piece 14 enters the lock hole 8. , The inner and outer cases 5, 6 are mutually locked. Even if the user attempts to move the inner case 5 in the opening direction R in this state, the vertical surface 18 of the locking projection 14a is locked in the lock hole 8 to prevent the movement, so that the inner case 5 is not opened.

As described above in connection with the prior art, when a fraudulent customer brings a permanent magnet and attempts to unlock the locking device, and when the permanent magnet is approached from the X-axis direction, the main lock piece is opened. Although the magnetic locking action is generated in the magnetic locking means 14c of the main locking piece 14, the main locking piece 14 is prevented from moving in the magnetic bonding direction by the locking means 15a of the auxiliary locking piece 15,
The locking projection 14a is not retracted from the lock hole 8 and is not unlocked. As will be described later, the spring wire constituting the resilient means 15b of the auxiliary lock piece 14 can be deformed also in the Y-axis direction, but the spring wire can be deformed by a force enough to draw the main lock piece 14 by a magnet. Does not deform in the axial direction.

On the other hand, when an unauthorized customer approaches the permanent magnet from the Y-axis direction, the magnetic locking means 15
c is moved in the magnetic attachment direction, and the locking means 15a is
It is possible that the main lock piece 14 is still retracted from the lock hole 8 by the resilient means 14b, so that the main lock piece 14 is not unlocked. 5 does not open.

As is clear from the above, the locking device is X
Since it is a structure that is unlocked only when two magnets are simultaneously approached from two directions of the axial direction and the Y-axis direction, the possibility and probability of unauthorized unlocking by an unauthorized customer is extremely small. And safe.

When a good customer requests unlocking by a good customer, the display case 4 is unlocked from the vicinity of the bottom wall 6b including the locking housing 9 as described above.
, The first magnet means 12 automatically faces the locking housing 9 from the X-axis direction, and at the same time, the second magnet means 13 faces the locking housing 9 from the Y-axis direction. At this time, as shown in FIG. 3A, the magnetic attaching means 15c of the auxiliary lock piece 15 is moved in the magnetic attaching direction M2 toward the second magnet means 13 against the resilient means 15b,
The locking means 15a is retracted from the locked portion 20. Further, the magnetic attaching means 14c of the main lock piece 14 is moved in the magnetic attaching direction M1 toward the first magnet means 12 against the resilient means 14b,
The locking projection 14a is retracted from the lock hole 8, and the inner case 5 is unlocked. Therefore, the inner case 5 can move in the opening direction R with respect to the outer case 6.

The display case 4 is divided into first and second magnet means 12,
13, the main lock piece 14 and the auxiliary lock piece 1
5 restores the respective resilient means 14b and 15b, but in the illustrated embodiment, the restoration speed α of the main lock piece 14 is restored.
Difference generation means for setting the restoration speed β of the auxiliary lock piece 15 to α <β, and the locking means 15a of the auxiliary lock piece 15
An unlocking state mooring means for maintaining the locking projection 14a in a state of being drawn into the window hole 17 is constituted by the cam portion 21 attached to the lock member. The timing difference generating means, for example, locks the vertical surface 18 of the locking projection 14a with the lock hole 8
Can be configured by rubbing the inner peripheral surface of the first member while generating frictional resistance. Therefore, the spring means 14b, 15b
As shown in FIGS. 3B and 3C, the auxiliary lock piece 15 returns first, and the cam portion 21 provided on the locking means 15a is resiliently pressed by the main lock piece 14. The main lock piece 14 is made to enter the lower side of 14b and is prevented from elastically returning. Therefore, since the locking projection 14a does not protrude from the window hole 17 and remains in the retracted state, the display case 4 can be freely opened at any time after being taken out from the unlocking device 10.

When the display case 4 is closed and locking is required again, the resetting means 16 is pushed into the locking housing 9 as shown in FIG.
6, the resilient means 14b of the main lock piece 14 is strongly pushed down. At this time, the locking means 15a of the auxiliary lock piece 15
Is disengaged while retreating from the main lock piece 14 along the cam portion 21 provided on the upper edge, and makes the main lock piece 14 elastically recover downward. When the main lock piece 14 returns, the auxiliary lock piece 15 also returns, and the locking means 15a enters and locks the locked portion 20 as described above with reference to FIG.

The main lock piece 14 restored by the reset means 16 causes the locking projection 14a to protrude from the window hole 17, but when the inner case 5 is fitted into the outer case 6 in this state, the locking projection 14a is automatically set. After retreating into the window hole 17, it projects again and locks the lock hole 8. That is, as shown in FIG.
Is inserted in the closing direction F with respect to the bottom wall 5 b of the inner case 5.
Collides with the inclined guide surface 19 of the locking projection 14a, and pushes the locking projection 14a into the window hole 17 through the inclined guide surface 19. At this time, the locking means 15a of the auxiliary lock piece 15 is locked to the locked portion 20 of the main lock piece 14, but the elastic means 15b of the auxiliary lock piece 15 is deformed upward while the main The locking piece 14 is lifted, and as a result, the locking projection 14a is pushed into the window hole 17,
The inner case 5 can be fitted. When the inner case 5 enters and the lock hole 8 coincides with the window hole 17, the auxiliary lock piece 15 and the main lock piece 14 are elastically restored, and the locking projection 1 is formed.
4a is projected from the window hole 17 to enter and lock into the lock hole 8.

In the illustrated example, the procedure for fitting the inner case 5 to the outer case 6 after the reset means 16 is operated has been described. However, after the inner case 5 is fitted to the outer case 6, the reset means 16 is operated. It is good to be a procedure that makes
Locking is enabled by any procedure.

[Second Embodiment] FIGS. 5 to 7 show a second embodiment of the main components of the locking device according to the present invention, and the components common to the first embodiment have the same reference numerals as those described above. Is shown. The lock housing 9 includes a main lock piece 14 that can move forward and backward in the X-axis direction, an auxiliary lock piece 15 that can move forward and backward in the Y-axis direction, and a release unit 16.

Similar to the first embodiment, the main lock piece 14 is formed by a leaf spring formed by bending a single metal plate that can be magnetically attached to the first magnet means 12, and is substantially V-shaped. A pair of resilient means 14b and 14b are formed by the wing pieces extending to both sides from the locking projection 14a which is bent into two sides, and the flat faces of the leaf springs are faced in the X-axis direction. By itself magnetically attaching means 14c,
The locking projection 14a always projects from the window hole 17 by locking or fixing the ends of the resilient means 14b, 14b to the front and rear walls 9b, 9b of the locking housing 9. At this time, the locking projection 14a bent substantially in a V shape has a vertical surface 18 and a guide inclined surface 19.
Are formed. Note that the upper surface of the one magnetic attaching means 14c is a locked portion 20.

The auxiliary lock piece 15 is formed by a leaf spring formed by bending a single metal plate that can be magnetically attached to the second magnet means 13, and extends from the side of the main lock piece 14 in the Y-axis direction. Locking means 15a which advances and locks with locked portion 20 of main lock piece 14 to prevent retraction of locking projection 14a.
And a resilient means 15b for constantly urging the locking means 15a in the advance direction; and a resilient means 15b when the second magnet means 13 on the Y axis is arranged on the outer side surface of the side wall of the lock housing 9.
And magnetically attaching means 15c for retracting the locking means 15a from the locked portion 20 against the above. The tail end of the resilient means 15b is a mounting seat 15d, which is fixed or fixed to the side wall of the lock housing 9. The flat surface of the leaf spring faces in the Y-axis direction, so that the resilient means 15b itself also serves as the magnetic attaching means 15c.

The release means 31 is composed of a pin 32 which is freely inserted into the top wall 9a of the lock housing 9 so as to be able to move forward and backward, and a cam 33 provided at the lower end of the pin 32. It is being rushed. The cam 33
Is pressed against the inner surface of the magnetic attaching means 15 c of the auxiliary lock piece 15, and when the pin 32 is pressed down against the spring 34, the auxiliary lock piece 15 is pushed by the cam 33.
b, and the locking means 15a is retracted from the locked portion 20. In other words, the movement of the pin 32 in the X-axis direction is converted by the cam 33 into the movement in the Y-axis direction to act on the auxiliary lock piece 15.

FIG. 5 shows a state in which the inner case 5 is fitted inside the outer case 6 and the display case 4 is closed.
The locking projection 14a of 4 enters the lock hole 8, and locks the inner and outer cases 5, 6 mutually.

In this state, even if an unauthorized visitor brings the permanent magnet and attempts to unlock the locking device, and the permanent magnet is exposed from the X-axis direction, the main lock piece 14 is Since the movement in the magnetic attachment direction is prevented by the locking means 15a, the locking projection 14a does not retract from the lock hole 8 and is not unlocked.

On the other hand, when an unauthorized visitor faces the permanent magnet from the Y-axis direction, the magnetic attaching means 15c of the auxiliary lock piece 15
Is moved in the magnetic attachment direction, and the locking means 15a is
However, the main lock piece 14 is not unlocked because the locking projection 14a still enters and locks the lock hole 8 by the resilient means 14b.

According to the configuration of the second embodiment, the locking device can be configured such that (1) when two magnets are simultaneously exposed from two directions of the X-axis direction and the Y-axis direction, (2) the pin of the release means 31 3
2 is pressed down to deform the resilient means 15b of the auxiliary lock piece 15 and, at the same time, when the magnet is exposed from the X-axis direction, the lock is unlocked only by one of the two operations. The possibility and establishment of unauthorized unlocking by unauthorized shoppers is small and secure.

When a clerk requests unlocking by a good customer, the display case 4 may be inserted into the insertion space 11 of the unlocking device 10 from the vicinity of the bottom wall 6b including the locking housing 9. As a result, as shown in FIG. 6A, the magnetic attaching means 15c of the auxiliary lock piece 15 is moved in the magnetic attaching direction M2 toward the second magnet means 13 against the resilient means 15b, and is locked. The means 15a is retracted from the locked portion 20.
Further, the magnetic attaching means 14c of the main lock piece 14 is
b, the locking projection 14a is moved backward from the lock hole 8 toward the first magnet means 12, and the inner case 5 is unlocked. Therefore, the inner case 5 can move in the opening direction R with respect to the outer case 6.

The clerk inserts the display case 4 into the insertion space 11 of the unlocking device 10 and inserts the inner case 5 and the outer case 6.
It is preferable to provide an unlocking state mooring means so that the display case 4 can be freely opened even after the display case 4 is pulled out from the unlocking device 10. In the illustrated embodiment, such an unlocked state mooring means is constituted by a timing difference generating means and a mooring portion 35 of the auxiliary lock piece 15. That is, the display case 4 is connected to the first and second magnet units 1.
2 and 13, the main lock piece 14 and the auxiliary lock piece 15 restore the respective resilient means 14b and 15b, but the restoration speed α of the main lock piece 14 and the auxiliary lock piece 1
5 is provided with a timing difference generating means for setting the restoration speed β of α5 to α <β, and the mooring portion 3
5 prevents the return of the main lock piece 14 and keeps the locking projection 14a pulled into the window hole 17. The timing difference generating means is constituted, for example, by sliding the vertical surface 18 of the locking projection 14a against the inner peripheral surface of the lock hole 8 while generating frictional resistance. Further, the mooring portion 35 is formed by, for example, forming a notch-shaped notch or a saw-toothed unevenness at the tip edge of the locking means 15a.

Therefore, according to the configuration in which the unlocked state mooring means is provided by the timing difference generating means and the mooring section 35 as shown in the figure, the display case 4 is inserted into the insertion space 11 of the unlocking device 10 so that the display case 4 can be inserted inside and outside Even if the cases 5 and 6 are not opened, the inner and outer cases 5 and 6 can be freely opened at any time with the display case 4 removed from the unlocking device 10.

In order to close the display case 4 and lock it again, any of the following two procedures (1) and (2) may be used. (1) As described above, the locking projection 14a is held in a state of being drawn into the window hole 17, so that the inner case 5 can be freely fitted into the outer case 6. Then, with the lock hole 8 aligned with the window hole 17,
7A, the cam 33 deforms the resilient means 15b of the auxiliary lock piece 15 and retreats the mooring portion 35 from the main lock piece 14 to release the locked state, as shown in FIG. 7A. Then, the resilient means 14b of the main lock piece 14 returns to project the locking projection 14a from the window hole 17 and enters and locks the lock hole 8. When the pin 32 is raised and returned by the spring 34, the resilient means 15b of the auxiliary lock piece 15 is restored and the locking means 15a is moved to the locked portion 20 of the main lock piece 14.
To lock. (2) Before the inner case 5 is fitted into the outer case 6, the pin 32 of the release means 31 is pressed down due to a malfunction or the like, and the mooring portion 35
Is released, the main locking piece 14 projects the locking projection 14a from the window hole 17, and the auxiliary locking piece 15 locks the locking means 15a to the locked portion 20. Become. Therefore, in order to close the display case 4 from this state, the locking means 15a of the auxiliary lock piece 15 is pushed down by pressing down the pin 32 of the release means 31 so that the main lock piece 1 can be closed.
The inner case 5 may be inserted into the outer case 6 while being retracted from the locked portion 20 of FIG. At this time, as shown in FIG. 7B, when the inner case 5 is fitted into the outer case 6 in the closing direction F, the bottom wall 5b of the inner case 5 is brought into contact with the inclined guide surface 19 of the locking projection 14a.
And the locking projection 14a
Is pushed into the window hole 17. That is, since the locking means 15a releases the locked portion 20 by pressing down the pin 32, the locking projection 14a is lifted while the main lock piece 14 is lifted.
Is retracted inward of the window hole 17 to allow the inner case 5 to be fitted. When the inner case 5 moves in the closing direction F and aligns the lock hole 8 with the window hole 17, the main lock piece 14 is elastically restored to enter and lock the locking projection 14a into the lock hole 8, and thereafter the pin is engaged. 32 may be released from the depressed state.

The present invention is characterized in that the locking device can be unlocked by the first magnet means 12 in the X-axis direction and the second magnet means 13 in the Y-axis direction based on the structure described in the claims. Therefore, the additional configuration described in the illustrated embodiment can be variously changed in design.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a product display case in which a locking device of the present invention is implemented, and an example of an unlocking device.

2A and 2B show a first embodiment of a locking device of the present invention, wherein FIG. 2A is a cross-sectional view in a locked state, and FIG. 2B is a perspective view showing a relationship between a main lock piece and an auxiliary lock piece in a locked state. is there.

3A and 3B show a first embodiment of the locking device of the present invention, wherein FIG. 3A is a perspective view showing a relationship between a main lock piece and an auxiliary lock piece at the time of unlocking, and FIG. Perspective view showing the relationship between the main lock piece and the auxiliary lock piece in front,
(C) is a sectional view of the unlocked state.

4A and 4B show a first embodiment of the locking device of the present invention, in which FIG. 4A is a cross-sectional view showing a locking operation when the display case is closed after resetting, and FIG. It is a perspective view which shows the relationship of an auxiliary lock piece.

5A and 5B show a lock device according to a second embodiment of the present invention, wherein FIG. 5A is a cross-sectional view in a locked state, and FIG. 5B is a perspective view showing a relationship between a main lock piece and an auxiliary lock piece in a locked state. is there.

6A and 6B show a lock device according to a second embodiment of the present invention, wherein FIG. 6A is a perspective view showing a relationship between a main lock piece and an auxiliary lock piece at the time of unlocking, and FIG. It is sectional drawing.

7A and 7B show a locking device according to a second embodiment of the present invention, in which FIG. 7A is a cross-sectional view showing a locking action when the display case is closed, and FIG. 7B is a main lock piece and an auxiliary lock during the locking action. It is a perspective view which shows the relationship of a piece.

[Explanation of symbols]

 3 commodity 4 display case 5 inner case 5a inner fitting wall 5b bottom wall 6 outer case 6a outer fitting wall 6b bottom wall 8 lock hole 9 locking housing 10 unlocking device 11 insertion space 12 first magnet means 13 second magnet means 14 main Lock piece 14a Locking projection 14b Resilient means 14c Magnetic attachment means 15 Auxiliary lock piece 15a Locking means 15b Resilient means 15c Magnetic attachment means 15d Mounting seat 16 Reset means 17 Window hole 18 Vertical surface 19 Guide inclined surface 20 Locked portion 21 Cam part 31 Release means 32 Pin 33 Cam 35 Mooring part

Claims (3)

[Claims] 1. A device for locking an inner fitting wall of an inner case from an outer case in a product display case having an inner case and an outer case removably fitted therein, the device being formed on the inner fitting wall of the inner case. A lock hole, a main lock piece provided in the outer case and movable in the X-axis direction extending through the lock hole, and an auxiliary lock piece provided in the outer case and movable in the Y-axis direction intersecting the X axis. The main lock piece includes a locking projection that enters the locking hole from the X-axis direction, a resilient means that constantly urges the locking projection in the entry direction, and a magnet on the X-axis outside the outer case. Magnetic locking means for retracting the locking projection from the lock hole against the resilient means when disposed, wherein the auxiliary lock piece advances in the Y-axis direction and is locked to the locked portion of the main lock piece. Locking means for preventing the locking projection from retreating by Magnetic locking means for retracting the locking means from the locked portion when a magnet is arranged on the Y-axis outside the case, comprising: a locking device for a product display case. 2. The auxiliary lock member further comprises: a resilient means which advances in the Y-axis direction and constantly urges a locking means for locking to a locked portion of the main lock piece in the advance direction. The magnetic attachment means of the piece is configured to retreat the locking means from the locked portion against the resilient means by a magnet arranged on the Y axis outside the outer case. Claim 1
A device for locking a product display case according to the above. 3. An apparatus for unlocking the locking device for a product display case according to claim 1, wherein an insertion space is formed so that the product display case can be inserted therein, and the inside of the insertion space is invisible from the outside. , Wherein a first magnet means facing the outer case from the X-axis direction and a second magnet means facing the outer case from the Y-axis direction are provided.