JP2002155669A - Safety box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety box which is hardly opened by means of a crowbar or the like. SOLUTION: The safety box has a box main body 2 molded in the shape of a box and having a flat plate part 2e and an opening in the upper part, an opening-closing cover 3 opening and closing the opening, a key part having an engaging part 9a, an engaging piece 3i engaging with the engaging part 9a, a lock plate engaging part formed in the end part in the direction of opening of the opening-closing cover 3 and a lock plate 6 which is provided on the rear side of the opening-closing cover 3, of which the base end side is fixed to the engaging piece 3i and of which the fore end is engaged with the lock plate engaging part. By applying an external force to the engaging piece 3i in a state wherein the engaging part 9 engages with the engaging piece 3i, the engaging piece 3i is moved to the front side of the box main body 2, the state of engagement of the lock plate engaging part of the opening-closing cover 3 with the lock plate 6 is thereby canceled and the lock plate 6 comes off. An opposed part made thereby opposite to the front-side end part of the flat plate part 2e is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety box which is locked with a key.

[0002]

2. Description of the Related Art Conventionally, many hospitals have provided a safety box in a drawer provided in a hospital room for storing valuables such as money owned by an inpatient. Various types of safety boxes have been proposed and used in the past, but since they store valuables, they are provided with a key part, which is used by locking and unlocking. ing. Among them, in particular, locking using a setting card and a card key,
According to the safety box with a built-in card-type lock that unlocks, even if the user is changed, the risk of being unlocked by the previous user is extremely small and the safety is high, so the current mainstream safety box It is being considered. As shown in FIGS. 15 and 16, for example, a safety box 101 using this card-type lock is formed by bending a sheet metal into a box shape, and has an opening at the upper front side. It has a rectangular box body 102 and an opening / closing lid 103 slidably disposed on the box body 102 on the front side and the back side of the box body 102 to open and close the opening. A protective plate 103a for preventing prying is fixed to the upper surface on the distal end side of the opening / closing lid 103. Then, on the tip side of the box body 102,
A card-type lock storage section 104 is formed, and a card-type lock 105 is built in the card-type lock storage section 104. A number of tumbler pins are arranged in the card-type lock 105, and a setting card insertion hole 1 into which a setting card 106 shown in FIG.
05a is formed. The setting card 106 is integrally formed of a synthetic resin together with a card key 107 to be described later, and is connected to the card key 107 via connecting portions 107a, 107a. Each of the setting card 106 and the card key 107 has pin corresponding holes 106a and 107b through which a tumbler pin built in the card lock 105 is inserted. That is, the setting card 106 is separated from the card key 107 and the insertion hole 1 for the setting card is separated.
The release position of the tumbler pin (not shown) built in the card lock 106 is set by inserting the tumbler pin into the lock 05a.

A key insertion hole (not shown) into which the card key 107 is inserted is formed on an upper surface of the card type lock, and a key insertion hole corresponding to the key insertion hole is formed on an upper surface of the card type lock storage portion 104. A card key insertion hole 104a is formed. Then, by inserting the card key 107 into the card key insertion hole 104a and the key insertion hole, the tumbler pin moves, whereby the card lock 105 moves. When the lock piece 108 shown in FIG. 16 moves, the engagement between the lock piece 108 and an engagement hole (not shown) formed at the tip of the opening / closing lid 103 is released. Also,
In this conventional safety box 101, an opening / closing door 109 is provided on a side surface of the card type lock storage section 104 via a hinge, and when the opening / closing door 109 is opened, the setting card insertion hole 105a is exposed. It is configured. A horizontal rod 110 is provided in the card-type lock storage section 104 and at a side of the card-type lock in a direction perpendicular to the direction in which the setting card 106 is taken out. The horizontal rod 110 is configured such that the distal end is inserted into a cylindrical portion 110a provided on the distal end of the horizontal rod 110 when the opening / closing lid 103 is closed. A lock pin 111 for locking the closed state of the door 109 is provided below the horizontal rod 110, and a front end of the lock pin 111 is inserted into the back surface of the door 109. Insertion portion 109a is formed. The horizontal rod 1
As shown in FIG. 15, the horizontal rod 1 is inserted into a rod supporting portion 110b formed in a cylindrical shape, as shown in FIG.
A first coil spring 112 that constantly biases the cover 10 in the opening direction of the cover 103 is provided. Further, the lock pin 111 has a pin supporting portion 111 formed in a cylindrical shape.
In the pin support portion 111b, a second coil spring 113 that constantly urges the lock pin 111 in the closing direction of the opening / closing lid 103 is provided.

[0004] In the middle of the upper end side of the left and right side plates (reference numerals are omitted) constituting the box body 102,
Each of the guide grooves 102b is formed, and inside the left and right side plates (reference numerals are omitted) constituting the opening / closing lid 103, as shown in FIG. Two wheels 114 are provided. In addition, an engagement hole (not shown) for engaging with the lock piece 108 is formed on the front surface of the opening / closing lid 103 as described above. Note that the card-type lock storage unit 104
Below the upper surface plate 104b and the inside of the back surface of the left and right side plates 104c are extended to the rear end side so that the front end side of the opening / closing lid 103 is inserted. From this, this open / close lid 1
03 is closed and locked, the card-type lock storage unit 1
The rear end of the upper surface plate 104b of 04 is located between the upper surface on the front end side of the opening / closing lid 103 and the horizontal plate portion forming the protection plate 103a. That is, the tip of the horizontal plate constituting the protection plate 103a is located above the top plate 104b constituting the card type storage unit 104, and the tip of the opening / closing lid 103 is located below the top plate 104b. Therefore, it is difficult to pry open the opening / closing lid 103 with a bar or the like.

Therefore, in the conventional safety box 101, the setting card 106 and the card key 107 are separated, and the setting card 106 is inserted into the setting card insertion hole 105a.
When the lock pin 111 is moved in the direction of the back of the safety box 101 with a finger from the inside of the safety box 2 and the open / close door 109 is closed, the lock pin 111 is resiliently moved by the elastic force of the second coil spring 113. It moves in the front direction of the box 101, the leading end side is inserted into the insertion portion 109a, and it cannot be opened.
Then, in this state, the opening 102a formed in the box main body 102 is closed by the opening / closing lid 103, and as described above, the engaging hole (not shown) formed on the front face of the opening / closing lid 103 and the lock piece 108 are connected. The locking of the opening / closing lid 103 is completed by the engagement. Note that, by locking the opening / closing lid 103, the distal end side of the horizontal rod 110 is inserted into the cylindrical portion 110a. Also,
When the user wants to unlock the safety box 101, as described above, the card key 107 separated from the setting card 106 is inserted into the card key insertion hole 104a and the key insertion hole (not shown), so that the tumbler pin is inserted. Is moved, whereby the card-type lock 10 is moved.
5 moves and the card-type lock 105 moves as shown in FIG.
When the lock piece 108 shown in FIG. 5 moves, the engagement between the lock piece 108 and the not-shown engagement hole formed in the opening / closing lid 103 is released.

With the above configuration, in the conventional safety box 101, the opening / closing lid 103 has a structure in which the protective plate 104 makes it difficult to pry open the opening / closing lid 103 with a bar or the like. Further, the door 109 cannot be easily opened by the lock pin 111,
Even if the door 109 is opened, the setting card 106 cannot be removed by the horizontal rod 110. Therefore, it is difficult to forcibly open the opening / closing lid 103 to take out valuables or the like in the box body 102, and when the setting card 106 is removed, a new setting card is inserted, and a card key corresponding to the setting card is used. Unlocking can also be prevented.

[0007]

However, in the above-mentioned conventional safety box 101, the protection plate 1 is not used.
Although 03a is fixed by welding or the like, it is not impossible to remove it from the opening / closing lid 103 by a bar or the like. When the protection plate 103a is removed in this manner, a bur or the like is screwed through a gap between the opening / closing cover 103 and the flat plate portion 104b of the card-type lock storage portion 104, and the opening / closing cover 10
3 may be disengaged from the locking piece 108 by unscrewing an engaging hole (not shown) formed on the front surface of the opening / closing lid 103 by bending the tip of the opening 3 in the opening direction. Further security is required.

Therefore, the present invention has been proposed to solve such problems of the conventional safety box, and has as its object to provide a new safety box with further improved safety. Is what you do.

[0009]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and a first invention (the invention described in claim 1) is a box body formed in a box shape. An opening formed in the upper part of the box body and on the front side of the box body; a flat plate part formed on the upper part of the box body and formed on the back side of the box body; An opening / closing lid slidably disposed on the front side and the back side for opening and closing the opening, a key portion formed in a closing direction of the opening / closing lid of the box body, and an engaging portion formed on the key portion. An engagement piece formed on the front closing side of the opening / closing lid and engaging with an engaging portion formed on the key portion; and a lock plate locking portion formed on an end of the opening / closing lid in an opening direction. The back side of the opening / closing lid and the base end side are fixed to the engagement piece. , A tip having a lock plate locked by the lock plate locking portion, and a tip side of the lock plate, in a state where the engagement portion is engaged with the engagement piece, When an external force is applied to the engagement piece, the engagement piece is moved to the front side of the box main body, and the locking state of the lock plate locking portion of the opening / closing lid and the lock plate is released, and the lock plate falls off. By doing so, a facing portion facing the front end of the flat plate portion is formed.

Further, the second invention (the invention according to claim 2)
Are formed in a box shape, an opening formed on the front side of the box body at the top of the box body, and formed on the back side of the box body at the top of the box body. A flat plate portion, an open / close lid slidably disposed on the front side and the back side of the box main body to open and close the opening, and a key portion formed in a closing direction of the open / close lid of the box main body. An engaging portion formed on the key portion, an engaging piece formed on the front closed side of the opening / closing lid and engaging with the engaging portion formed on the key portion, and an end in the opening direction of the opening / closing lid. A lock plate locking portion formed, and a lock plate formed on the back surface of the opening / closing lid and having a base end fixed to the engagement piece and a distal end locked by the lock plate locking portion. Then, when a through hole is formed in the flat plate portion, In a state in which the engaging portion is engaged with the engaging piece, an external force is applied to the engaging piece on the lower surface on the distal end side of the lock plate, so that the engaging piece engages with the front side of the box body. When the piece is moved, the locked state of the lock plate locking portion of the opening / closing lid and the lock plate is released, and the lock plate falls off, the protrusion inserted into the through hole formed in the flat plate portion. Are formed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a safety box according to the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 and 2, the safety box 1 is formed by bending a sheet metal into a box shape, and has a rectangular box body having an opening at an upper front side. And an opening / closing lid 3 slidably disposed on the box body 2 on the front side and the back side of the box body 2 to open and close the opening. The box body 2 includes a bottom plate portion 2a formed in a rectangular shape, and left and right side plate portions 2 standing from both left and right sides of the bottom plate portion 2a.
b, 2c, a rear plate 2d standing upright from the rear end of the bottom plate 2a, and bent from the upper end of the rear plate 2d, and left and right ends are fixed to the side plates 2b, 2c. A flat plate portion 2e having a length approximately half the length of the bottom plate portion 2a, and a front plate portion 2f formed on the front surface of the box body 2 facing the back plate portion 2d (FIG. 4).
See). That is, this box body 2
An opening (symbol is omitted) for inserting and removing money and other valuables from the front end to about half of the entire area is formed, and the half to the rear end is closed by the flat plate portion 2e. Have been. The left and right side plate portions 2b, 2c are provided in the middle portion on the upper end side of the left and right side plate portions 2b, 2c.
As shown in FIG. 2 (showing the left side plate 2b), a guide rail 2g is formed from the front end to the rear end of 2c.

On the other hand, as shown in FIGS. 1 to 5 and 8, the opening / closing cover 3 includes an opening / closing plate 3a for closing or opening an opening formed in the box body 2, and an opening / closing plate 3a. Left and right side plates 3b, 3 hanging from both left and right sides
c and a hanging plate portion 3d which is suspended from the tip end side of the opening / closing plate portion 3a and whose lower end is bent in an L-shape. Protection plate 4
Is fixed, and on the back surface of the opening / closing plate portion 3a, as described later,
A lock plate 6 for preventing prying is mounted. The opening / closing plate portion 3a is a rectangular plate having an area larger than at least the area of the opening formed in the box body 2. The height of the side plates 3b, 3c provided on the left and right sides of the opening / closing plate 3a is a length that closes the guide rail 2g. On the upper end side inside the left and right side plate portions 3b, 3c, there are four shaft portions 3e,
3f, 3g, 3h are formed, and these shaft portions 3e, 3h are formed.
Wheels 5a, 5b, 5c and 5d that roll while being guided by the guide rail 2g are provided at f, 3g and 3h, respectively (see FIG. 8). That is, the opening / closing lid 3 is slidably disposed on the box body 2 via the four wheels 5a, 5b, 5c, 5d. Also,
As described above, at the tip of the opening / closing plate portion 3a of the opening / closing lid 3, as shown in FIG. And
An engagement hole 3i into which one engagement portion 9a formed on a lock piece 9 described later is inserted and engaged is formed on the front surface of the hanging plate portion 3d.

A bent plate portion 3j formed at the lower end of the hanging plate portion 3d is provided with a lock plate fixing portion 3k to which a lock plate 6 described later is fixed. That is, the tip of the opening / closing lid 3 has the hanging plate portion 3d
And a bent plate portion 3j that is bent in an L-shape from the lower end of the hanging plate portion 3d, and the hanging plate portion 3d includes
The engagement hole 3i is formed, and a lock plate fixing portion 3k is formed in the bent plate portion 3j. Therefore, when an external force is applied to the hanging plate portion 3d, the external force is applied to the bent plate portion 3j. Also,
As shown in FIG. 9 which is a cross-sectional view taken along the line IX-IX of FIG. 8, the rear end of the opening / closing plate portion 3a is at least wider than the plate width of the lock plate 6 and slightly smaller than the thickness of the lock plate 6. There is provided a lock plate locking portion 3l hanging down by a long length. The lock plate locking portion 3l is provided with a lock plate locking hole 3m sized to lock a lock plate locking piece 6d of the lock plate 6 described later.

A lock plate 6 constituting the present invention is attached to the back surface of the opening / closing lid 3. As shown in FIGS. 6 and 7, the lock plate 6 is formed by bending a metal plate, and includes a flat plate portion 6a,
A bent portion 6b bent substantially vertically from one end of the flat plate portion 6a (the closing direction of the opening / closing lid 3); and an L-shaped bent portion from the lower end of the bent portion 6b. A fixing piece 6c is formed to face the flat plate portion 6a. At the other end of the flat plate portion 6a (in the opening direction of the opening / closing lid 3), a locking piece 6d is formed to be locked in the locking plate locking hole 3m of the opening / closing lid 3; The opposing plate portion 6e which is bent from the flat plate portion 6a in the same direction as the bent portion 6b at least by a length longer than the thickness of the flat plate portion 2e of the box body 2 in a substantially vertical direction and stands upright.
And a horizontal plate portion 6f which is bent from the tip of the opposed plate portion 6e toward the other end of the flat plate portion 6a.
In addition, the said opposing plate part 6e is an opposing part which comprises this invention. Further, as shown in FIG. 9, the position at which the tip of the horizontal plate 6f is formed is the flat plate 2 which constitutes the box body 2.
e is slightly closer to the front of the box body 2 than the front of e.

That is, the lock plate 6 is fixed by engaging the fixing piece 6c with a lock plate fixing portion 3k formed on the opening / closing lid 3, and the locking piece 6d is fixed to the opening / closing lid 3 As shown in FIGS. 8 and 9, it is attached to the opening / closing lid 3 by being locked in a lock plate locking hole 3m formed in the opening 3m. Therefore,
The lock plate 6 fixed to the lock plate fixing portion 3k via the fixing piece 6c is moved when the base end side is moved by applying an external force to the lock plate fixing portion 3k (when bent and deformed). Move in the direction in which the external force acts. As a result, the locking piece 6d that has been locked in the lock plate locking hole 3m is released from the locked state, and the tip end of the lock plate 6 falls down.

Further, the protective plate 4 for preventing prying-up is provided with:
As shown in FIG. 1, a fixed plate portion 4a formed to have the same width as the open / close lid 3 and fixed to a middle portion on the distal end side of an open / close plate portion 3a constituting the open / close cover 3, An upright plate portion 4b bent from the tip of the upright portion 4a and a substantially L-shaped bent portion from the upper end of the upright plate portion 4b, and the tip protrudes slightly to the tip side from the tip of the opening / closing plate portion 3a. And a horizontal plate portion 4c.

On the front side of the box body 2, as shown in FIG. 1, a card type lock storage section 7 having a card type lock 8 built therein is fixed. The card-type lock storage section 7 is formed into a substantially box shape by bending a sheet metal, and as shown in FIG.
a, left and right side plate portions 7b and 7c which are bent in L-shape from both right and left ends of the front plate portion 7a, and the front plate portion 7a
And a bottom plate portion 7e bent inwardly from the lower ends of the left and right side plates 7b and 7c in an L-shape. A card-type lock 8 is fixed in the card-type lock storage unit 7. The card-type lock 8 has a large number of tumbler pins movably disposed therein. The setting card 11 and the card key 12 used for opening and closing the safety box 1 are the same as the setting card 121 and the card key 122 used for opening and closing the conventional safety box 101 shown in FIG. This safety box 1
The card-type lock 8 is provided with a lock piece 9 which is rotated by operating the card key 12. The lock piece 9 has an engagement hole 3i formed in the hanging plate 3d.
Is formed with one engaging portion 9a which is inserted into and engaged with the second member.

When the safety box 1 is used, a setting card insertion hole 8a provided on the side of the card lock 8 is passed through a setting card insertion hole 7f provided on the side of the card lock housing 7. By inserting the setting card 11 into the card lock 8, the release position of a tumbler pin (not shown) built in the card lock 8 is set. Subsequently, the card key 12 is inserted into the key insertion hole on the upper part of the card type lock 8 through the card key insertion part 7g provided on the upper surface of the card type lock storage part 7. In this case, when the card key 12 corresponds to the setting card 11, the card lock 8 moves downward in the card lock storage unit 7. An L-shaped connecting plate 13 is engaged with the card-type lock 8, and the L-shaped connecting plate 13 moves as the card-type lock 8 moves downward. The lock piece 9 supported by the support shaft 9c rotates with the movement of
Is disengaged from the engagement hole 3i of the opening / closing lid 3, and the door is unlocked.
Further, similarly to the above-described conventional safety box 101, an opening / closing door 14 is provided on a side surface of the card-type lock storage unit 7 via a hinge 14a. The configuration is such that the setting card insertion hole 8a is exposed. A horizontal rod 15 is provided in the card-type lock storage section 7 and beside the card-type lock 8 in a direction perpendicular to the direction in which the setting card 11 is taken out. The horizontal rod 15 is brought into contact with the wheel 5 b provided on the opening / closing lid 3 by closing the opening / closing door 14, and the leading end is inserted into a cylindrical portion 15 a provided on the leading end of the horizontal rod 15. It is configured as follows. A lock pin 16 for locking the closed state of the door 14 is provided below the horizontal rod 15, and a front end of the lock pin 16 is inserted into the back surface of the door 14. Insertion portion 14b is formed. As shown in FIG. 2, the horizontal rod 15 is inserted into a rod supporting portion 15b formed in a cylindrical shape. As shown in FIG. A first coil spring 15c that constantly urges the rod 15 in the opening direction of the lid 14 is provided. Also,
The lock pin 16 is a pin supporting portion 1 formed into a cylindrical shape.
A second coil spring 16b is provided in the pin supporting portion 16a and constantly urges the lock pin 16 in the closing direction of the cover 14.

In the card-type lock storage section 7, the side of the card-type lock 8 is rotated by a master key 17 shown in FIG. Rotating piece 17 engaged with the other engaging piece 9b
a is provided. Further, the card type lock storage part 7 has four connection plate parts 7h, which connect the card type lock storage part 7 to the front plate part 2f constituting the box body 2.
..7k is fixed, and each connecting plate portion 7h ... 7k has
A screw hole (symbol is omitted) through which a screw (not shown) is inserted is formed.

As shown in FIGS. 1 and 4, the height of the front plate 7a constituting the card-type lock storage unit 7 varies from the bottom plate 2a of the box body 2 to the open / close plate 3a of the open / close lid 3. The rear end of the flat plate portion 7d of the card-type lock storage portion 7 is located slightly closer to the rear end than the front end position of the box body 2, and is slightly higher than the height up to the upper surface. The opening formed in the main body 2 is completely closed, and the rear end of the flat plate portion 7d of the card type lock storage portion 7 is
Is located between the upper surface on the distal end side of the opening / closing plate portion 3a and the horizontal plate portion 4c forming the protection plate 4. Also,
The width of the front plate 7a constituting the card type lock storage unit 7 is also
As shown in FIG. 1, the width is slightly longer than the width of the opening / closing lid 3, and one of the engaging portions 9 a formed on the lock piece 9 is engaged with the engaging hole 3 i to lock the lock piece 9. Thus, the opening formed in the box body 2 is completely closed by the opening / closing lid 3.

Hereinafter, a method of using the above-described safety box 1 according to the present embodiment will be briefly described. First, a valuable item such as money is stored in the box body 2, and then the setting card 11 and the card key 12 are separated. The setting card 11 is formed into the card lock 8 from the setting card insertion portion 7f. It is inserted into the setting card insertion hole 8a. Thereby, as described above, the release position of the tumbler pin (not shown) built in the card lock 8 is set.
Then, in this state, the opening / closing lid 3 is slid to completely close the opening formed in the box main body 2, and the one engaging portion 9a formed in the lock piece 9 is engaged with the engaging hole 3i. Combine. Thereby, the locking is completed. At this time, as described above, the rear end of the flat plate portion 7d of the card type lock storage portion 7 is connected to the top surface on the front end side of the opening / closing plate portion 3a constituting the opening / closing lid 3 and the horizontal plate portion 4c constituting the protection plate 4. Will be located between That is, the tip of the horizontal plate portion 4c constituting the protection plate 4 is located above the flat plate portion 7d constituting the card type storage portion 7, and the tip of the opening / closing plate portion 3a constituting the opening / closing lid 3 is: Since it is located below the flat plate portion 7d, it is difficult to pry open the opening / closing lid 3 with a bar or the like. Further, by locking in this manner, as described above, the lock pin 16
Is inserted into the insertion portion 14b formed on the back surface of the opening / closing door 14, so that the setting card insertion hole 8a is completely closed, so that the setting card 11 cannot be taken out. Even when the door 14 is opened, the setting card cannot be removed due to the presence of the horizontal rod 15.

When the safety box 1 is unlocked and valuables stored in the box body 2 are taken out, the card key 12 is inserted into the card key insertion portion 7g.
When inserted into a key insertion hole (not shown) provided on the upper surface of the card-type lock 8, the engagement between one of the engagement portions 9a formed on the lock piece 9 and the engagement hole 3i is made. It is released. If the card key 12 is lost, the master key 17 is operated, the turning piece 17a is turned, and the lock piece 9 is turned using a management key stored by an administrator or the like. Good.

In a state where the safety box 1 is locked, a bur or the like is screwed through a gap between the opening / closing lid 3 and the flat plate portion 7d of the card-type lock storage section 7, thereby opening the opening / closing lid 3. Then, the hanging plate portion 3d engaged with the one engaging portion 9a is deformed so as to form an obtuse angle with the opening / closing plate portion 3a (moved to the front side of the safety box 1), and this hanging plate is moved. Due to the deformation (movement) of the portion 3d, the lock plate 6 is also moved in the same direction. Due to such movement of the lock plate 6, the tip of the lock plate 6, which has been inserted and locked in the lock plate locking hole 3m, is released from the locked state, and as shown in FIG. It is dropped and placed on the flat plate portion 2e. In this state, when the engagement state between the one engagement portion 9a formed on the lock piece 9 and the engagement hole 3i is released and the opening / closing lid 3 is moved in the opening direction, the lock plate As shown in FIG. 12, the opposing plate portion 6e formed in 6 abuts on the distal end surface of the flat plate portion 2e and cannot be opened. As a result, money, valuables, and the like put in the box body 2 cannot be taken out.

In the safety box 1 according to the above-described embodiment, the opposing plate portion 6e as an opposing portion formed on the distal end side of the lock plate 6 and the distal end surface of the flat plate portion 2e constituting the box body 2 are provided. By contacting,
Although a configuration for restricting the opening of the opening / closing lid 3 is adopted, the present invention is not necessarily required to have the above-described configuration. As shown in FIGS. 13 and 14, one end of the bottom surface of the lock plate 20 (the opening / closing lid 3). (Opening direction), a projection 20a may be provided, and a flat plate 2e constituting the box body 2 may be formed with a through hole 2i through which the projection 20a is inserted. Even in the case of such a configuration, when the opening / closing lid 3 is to be opened by the above-described method, the tip side of the lock plate 20 falls down, and the projection 20a is inserted into the through hole 2i. The lid 3 cannot be moved in the opening direction.

[0026]

As is apparent from the above description of the safety box according to one embodiment of the present invention, in the present invention (the invention according to claim 1), the front end of the lock plate includes In a state where the engaging portion is engaged with the mating piece, an external force is applied to the engaging piece to move the engaging piece toward the front side of the box body, and the lock plate locking portion of the opening / closing lid When the locked state between the flat plate portion and the flat plate portion is released by releasing the locked state of the flat plate portion and the lock plate, the facing portion facing the front end of the flat plate portion is formed. The opening of the opening / closing lid is regulated by the contact with the front end. Therefore, even when the engagement between the engaging portion formed on the key portion by the crowbar or the like and the engaging piece formed on the opening / closing lid is released, the valuables etc. still housed inside can be removed. It is possible to protect.

Further, the second invention (the invention according to claim 2)
In the case of the above, by the engagement of the protrusion formed on the dropped lock plate and the through hole formed on the flat plate portion,
The opening of the opening / closing lid is regulated. Therefore, even in the case of the second invention, the same effect as that of the first invention can be realized.

[Brief description of the drawings]

FIG. 1 is a plan view showing a safety box according to an embodiment of the present invention.

FIG. 2 is a left side view of the safety box shown in FIG.

FIG. 3 is a left side view of the safety box shown in FIG. 2, showing a state in which an opening / closing lid is closed.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a front view showing an opening / closing lid.

FIG. 6 is a plan view showing a lock plate.

FIG. 7 is a side view showing a lock plate.

FIG. 8 is a diagram illustrating the back surface of the opening / closing lid to which the lock plate is attached.

FIG. 9 is a view showing the positional relationship between the lock plate and the flat plate portion of the box main body in a state where the opening / closing lid is closed.
It is an X-ray sectional view.

FIG. 10 is a rear view showing the card type lock storage section.

FIG. 11 is a cross-sectional view showing a state in which the hanging plate portion of the opening / closing lid is deformed by an external force applied, the lock plate is moved, the locked state is released, and the hanging plate is placed on the flat plate portion.

FIG. 12 is a cross-sectional view showing a state in which the opposing plate portion of the lock plate is in contact with the distal end surface of the flat plate portion of the box body.

FIG. 13 is a plan view showing another lock plate.

FIG. 14 is a side view showing another lock plate.

FIG. 15 is a perspective view showing a conventional safety box.

FIG. 16 is a right side view showing a conventional safety box.

FIG. 17 is a plan view showing a state where a setting card and a card key are connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Safety box 2 Box body 3 Opening / closing lid 4 Protective plate 6 Lock plate 6e Opposite plate part 7 Card type lock storage part 8 Card type lock 9 Lock piece 11 Setting card 12 Card key 20 Other lock plate 20e Projection

Claims (2)

[Claims] 1. A box body formed into a box shape,
An opening formed at the top of the box body and on the front side of the box body; a flat plate portion formed at the top of the box body and formed on the back side of the box body; An opening / closing lid slidably disposed on the back side to open and close the opening; a key portion formed in a closing direction of the opening / closing lid of the box body; an engaging portion formed on the key portion; An engaging piece formed on the front closed side of the opening / closing lid and engaging with an engaging portion formed on the key portion; a lock plate locking portion formed on an end of the opening / closing lid in an opening direction; A back surface of the lid, a base end side of which is fixed to the engagement piece, and a tip end which is locked by the lock plate locking portion; In the state where the above-mentioned engaging part is engaged with the engaging piece When an external force is applied to the engagement piece, the engagement piece is moved to the front side of the box body, and the locked state of the lock plate locking portion of the opening / closing lid and the lock plate is released to lock. A safety box, wherein a facing portion facing the front end of the flat plate portion is formed by dropping the plate. 2. A box body formed in a box shape,
An opening formed at the top of the box body and on the front side of the box body; a flat plate portion formed at the top of the box body and formed on the back side of the box body; An opening / closing lid slidably disposed on the back side to open and close the opening; a key portion formed in the closing direction of the opening / closing lid of the box body; an engaging portion formed on the key portion; An engaging piece formed on the front closed side of the opening / closing lid and engaging with an engaging portion formed on the key portion; a lock plate locking portion formed on an end of the opening / closing lid in an opening direction; A back plate having a base end fixed to the engaging piece and a distal end locked by the lock plate locking portion; and a through hole formed in the flat plate portion And the tip of the lock plate When the engaging portion is engaged with the engaging piece, the engaging piece is moved to the front side of the box body by applying an external force to the lower surface of the box. The locking plate locking portion of the lid and the locking state of the locking plate are released, and the locking plate falls off, thereby forming a projection to be inserted into the through hole formed in the flat plate portion. And safety box.