JP2015048615A - Locking-unlocking mechanism of door and safe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking-unlocking mechanism of a door and a safe having this locking-unlocking mechanism, capable of preventing damaging to a bolt when closing the door.SOLUTION: The locking-unlocking mechanism comprises: a bolt 18; a coil spring 20 for energizing the bolt 18 toward a locking position; a push button for moving the bolt 18 to an unlocking position from the locking position; a first lock mechanism 22 for holding the bolt 18 in the unlocking position when the bolt 18 moves to the unlocking position from the locking position in a state where a door 4 exists in a door closing position, and releasing holding of the bolt 18 in the unlocking position when the door 4 moves to a first door opening position from the door closing position; and a second lock mechanism 24 for holding the bolt 18 in the unlocking position before the first lock mechanism 22 releases the holding of the bolt 18 when the door 4 moves to the first door opening position from the door closing position, maintaining the holding in the unlocking position of the bolt 18 when the door 4 is positioned between the first door opening position and a second door opening position opened more than in the first door opening position, and releasing the holding of the bolt 18 when the door 4 exists in the door closing position.

Description

  The present invention relates to a door locking / unlocking mechanism and a safe equipped with the locking / unlocking mechanism.

  Conventionally, as a locking and unlocking mechanism of a safe or the like, there is a structure as described in Patent Document 1. FIG. 6 of Patent Document 1 discloses a locking device for a safe as a conventional technique. In this locking device, a housing provided on a door body is inserted into a locking portion formed on a box. By doing so, the door body is locked. When unlocking, if the key is inserted into the cylinder lock and rotated in the unlocking direction, the housing is retracted against the pulling force of the spring, and the door body is unlocked. When closing the door, when the key is rotated and the housing is retracted, the door is closed and the key is returned, the housing protrudes and the door is locked.

Japanese Utility Model Publication No. 5-75367 (FIG. 6)

  However, in the locking device having the structure described in Patent Document 1, since the spring is urged in the direction in which the housing projects, when the hand is released from the key when the door is opened, the housing is released. Protruding. If an attempt is made to close the door body in this state, there is a possibility that the housing that has popped out will hit the housing and bend. In order not to damage the casing, the door must be closed while the key is rotated and the casing is retracted, which complicates the operation.

  An object of the present invention is to provide a door locking / unlocking mechanism that can prevent the bag from being damaged when the door is closed, and a safe equipped with the locking / unlocking mechanism.

  A locking / unlocking mechanism according to a first aspect of the present invention is a locking / unlocking mechanism for locking and unlocking a door with respect to a main body, and is attached to the main body and protrudes toward the door or is attached to the door. Projected toward the main body, provided to be movable between a locking position for locking the door to the main body and an unlocking position for retracting the door to the main body by being retracted to the attached main body or door. In the state where the heel, the urging means for urging the heel toward the locked position, the operation means operable by the user to move the heel from the locked position to the unlocked position, and the door in the closed position When the door is moved from the locked position to the unlocked position by operating the operating means, the bag is held at the unlocked position, and when the door is moved from the closed position to the first opened position, the bag is held at the unlocked position. The first lock mechanism that releases the door and the door is closed When the first lock mechanism moves from the position to the first opening position, the first locking mechanism holds the bag in the unlocked position before releasing the holding of the bag, and the door opens further than the first door opening position. And a second lock mechanism that maintains the bag in the unlocked position and releases the bag when the door is in the closed position.

In the present invention, in the initial state in which the door is in the closed position, the rod is biased toward the locking position by the biasing means, and is positioned at the locking position where the door projects from the door or the main body and locks the door to the main body. . When the user moves the scissors from the locked position to the unlocked position by operating the operating means, the scissors are retracted into the main body or the door and the door is unlocked from the main body. At this time, the first locking mechanism holds the bag in the unlocked position. Thereafter, when the door moves from the closed position to the first open position, first, the second lock mechanism holds the bag in the unlocked position. Thereafter, the first locking mechanism releases the holding of the bag in the unlocked position. In the first door opening position, the bag is maintained in the unlocked position by the second lock mechanism. Thereafter, when the door is opened from the first door opening position, the second lock mechanism holds the bag in the unlocked position, so that the bag remains retracted.
When closing the door, when the door reaches the closed position, the second lock mechanism releases the holding of the bag in the unlocked position. Thereby, a collar protrudes toward a door or a main body by a biasing means, and locks the door with respect to a main body.

  According to the locking / unlocking mechanism according to the present invention, since the second locking mechanism is provided in addition to the first locking mechanism, the first locking is performed while the door moves from the closed position to the first opened position. While the mechanism opens the door from the first door opening position, the second lock mechanism holds the bag in the unlocked position. Therefore, even when the door is opened, the bag does not protrude from the door or the main body, and the bag can be prevented from hitting the door or the main body and being damaged when the door is closed. Further, since the scissors are held in the unlocked position by the first lock mechanism or the second lock mechanism, it is not necessary to close the door while operating the operating means so as to retract the scissors, and the door opening / closing operation is easy. Become.

  Further, in the embodiment of the present invention, the first lock mechanism is engaged according to the opening / closing position of the door and the first engagement portion for engaging the heel and holding the heel in the unlocked position. A second drive mechanism for engaging the heel and holding the heel in the unlocked position, and a door opening / closing position. It is desirable to provide a second drive mechanism to be moved.

In this embodiment, the first drive mechanism moves the first engagement portion according to the opening / closing position of the door. Specifically, when the door is in the closed position, the first drive mechanism moves the first engaging portion so as to engage with the hook in the unlocked position. Further, when the door is in the first door opening position, the first drive mechanism moves the first engagement portion so that it does not engage with the bag.
The second drive mechanism moves the second engagement portion according to the opening / closing position of the door. Specifically, when the door moves from the door closing position to the first door opening position, the second drive mechanism moves the second engagement portion so as to engage with the hook in the unlocking position. Further, when the door is in the closed position, the second drive mechanism moves the second engagement portion so that it does not engage with the bag.

  Therefore, according to this embodiment, the first lock mechanism has the first engagement portion and the first drive mechanism, and the second lock mechanism has the second engagement portion and the second drive. Since it has a mechanism, the first drive mechanism and the second drive mechanism can move the first engagement portion and the second engagement portion according to the opening / closing position of the door, respectively. Therefore, the operation of the locking / unlocking mechanism linked to the opening / closing position of the door is ensured, and the first and second locking mechanisms are operated at the desired opening position of the door.

  In another embodiment of the present invention, the first engagement portion is provided so as to be rotatable with respect to the heel between an engagement position that engages with the heel and a non-engagement position that does not engage with the heel. The first drive mechanism has one end connected to the first engaging portion, the other end protruding from the main body or door toward the door or main body, and the other end abutting on the door or main body at the closed position. 1 actuating member and first actuating member urging means for urging the first actuating member in the protruding direction, and the second engaging portion is an engagement position for engaging with the flange. The second drive mechanism is provided so as to be rotatable with respect to the heel between a non-engagement position that does not engage with the heel, and one end of the second drive mechanism is connected to the second engagement portion, and the other end is a door or a main body. A second actuating member projecting from the main body or door toward the door and the other end abutting against the door or the main body at the closed position, and the second actuating member toward the projecting direction It is desirable to have a second operating member biasing means for energizing.

  In this other embodiment, when the distance between the door and the main body increases as the door opens, the other ends of the first operating member and the second operating member are urged by the first and second operating members. It protrudes from the main body or door by the biasing force of the means. By this protruding operation, one end of the first operating member and the second operating member moves, and the first engaging portion and the second engaging portion are rotated. The first engagement portion and the second engagement portion are moved to an engagement position where the first engagement portion and the second engagement portion engage with the heel or a non-engagement position where the first engagement portion does not engage with the heel. Further, as the door is closed, the other ends of the first operating member and the second operating member are brought into contact with and pressed by the door or the main body, and therefore retract into the main body or the door. By this retracting operation, one end of the first operating member and the second operating member is moved, and the first engaging portion and the second engaging portion are rotated in the opposite direction to the above, so that they are not engaged. Move to position or engagement position.

  Therefore, according to this other embodiment, the first engagement portion and the second engagement portion rotate in conjunction with the opening / closing operation of the door and engage or disengage with the bag. Without detecting the opening / closing position of the door, the first engagement portion and the second engagement portion are reliably and accurately engaged with the hook or released according to the opening / closing position of the door.

In still another embodiment of the present invention, door urging means for urging the door from the closed position to the first open position is further provided.
In this still another embodiment, the door urging means urges the door to the first opening position. Therefore, after the hook is unlocked, the door is urged by the urging force of the door urging means. Automatically opens to the open position.
Therefore, according to this further embodiment, since the door urging means is provided, the door opening operation up to the first opening position after unlocking is automatically performed. Operation becomes easy. In particular, when the locking / unlocking mechanism is used in a structure having a heavy door such as a safe, handling is easy because no force is required to open the door from the closed position.

A safe according to a first aspect of the present invention includes a main body and a door, and the above-described locking / unlocking mechanism provided on the main body or the door.
According to the safe according to the present invention, since the above-described locking / unlocking mechanism is provided, the same effect as described above can be obtained, and damage to the bag can be prevented.

It is a front view of the safe concerning one embodiment of the present invention. It is sectional drawing of the safe which concerns on one Embodiment of this invention. It is a figure which shows the locking / unlocking mechanism of the safe which concerns on one Embodiment of this invention. It is a figure which shows operation | movement of the locking / unlocking mechanism which concerns on one Embodiment of this invention. It is a figure which shows the position of the door of the safe in the state of FIG. It is a figure which shows operation | movement of the locking / unlocking mechanism which concerns on one Embodiment of this invention. It is a figure which shows operation | movement of the locking / unlocking mechanism which concerns on one Embodiment of this invention. It is a figure which shows the position of the door of the safe in the state of FIG. It is a figure which shows operation | movement of the locking / unlocking mechanism which concerns on one Embodiment of this invention. It is a figure which shows the position of the door of the safe in the state of FIG. It is a figure which shows operation | movement of the locking / unlocking mechanism which concerns on one Embodiment of this invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view of a safe 1 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the safe 1 according to an embodiment of the present invention. As shown in FIG. 1 and FIG. 2, the safe 1 includes a box-shaped main body 2 that can store articles such as valuables and a door 4 attached to the front of the main body 2. The door 4 is attached to the main body 2 at the lower end, and thus the door 4 is rotatable about the lower end. On the front upper part of the door 4, a handle 6 for pulling the door 4 forward and opening, a display panel 8 for performing various displays, a numeric keypad 10 for inputting a personal identification number, and an input of a personal identification number, etc. After the operation, a push button 12 is provided as an operation means for performing the unlocking operation of the safe 1.
On the back side of the door 4, a protruding portion 14 that protrudes toward the main body 2 side is provided, and this protruding portion 14 is accommodated in the main body 2 in the closed position where the door 4 is closed. Upper and lower surfaces and left and right side surfaces face the inner surface of the main body 2. Further, the inner side surface 14A of the protruding portion 14 is flat.
A spring 13 is provided between the lower end of the door 4 and the main body 2 as shown in FIG. 2, and the door 4 is urged by the spring 13 in a direction in which the door 4 is closed.

A locking / unlocking mechanism 16 that locks / unlocks the safe 1 is provided in the protruding portion 14 of the door 4.
FIG. 3 is a view showing the locking / unlocking mechanism 16 of the safe 1 according to the embodiment of the present invention, in which the inner surface 14A of the protruding portion 14 is removed and the door 4 is viewed from the back side. As shown in FIG. 3, a pair of locking / unlocking mechanisms 16 are provided on the left and right sides of the door 4 and are slidable in the left-right direction (the horizontal direction when the safe 1 is placed on a horizontal surface and the door 4 is closed). , A coil spring 20 as an urging means for urging the rod 18 outward in the left-right direction, a first lock mechanism 22 and a second lock mechanism 24 for holding the rod 18 in a predetermined position, and the door 4. A spring plunger 26 as a door urging means for urging the door 4 against the main body 2, a detection device 11 for detecting the position of the rod 18, and a detection result of the detection device 11. And the electronic key 15 for locking the lock 18 or releasing the lock.

The eaves 18 have a lateral direction relative to the door 4 between a protruding position where the outer free end 18A protrudes from the left and right side surfaces of the protruding portion 14 of the door 4 and a retracted position where the outer free end 18A is retracted inward from the left and right side surfaces of the protruding portion 14. Is slidable. When the door 4 is in the closed position, the protruding position of the flange 18 is a locking position where the flange 18 is engaged with a recess (not shown) on the inner surface of the main body 2. Further, the retracted position of the collar 18 is an unlocked position where the collar 18 is disengaged from the concave portion on the inner surface of the main body 2.
The inner end 18B of the flange 18 is connected to slidable running metal fittings 28 (28A, 28B) extending in the left-right direction. Cutouts 29A and 29B are formed on the lower and upper sides of the inner end portions of the running hardware 28A and 28B, respectively, and are arranged so as to overlap each other in the vertical direction at the door closing position. End portions of the running hardware 28A and 28B in which the notches 29A and 29B are formed are linked to each other by a link mechanism 30. The link mechanism 30 extends in the vertical direction, and a central portion thereof is attached to the door so as to be rotatable about a shaft 30A. One end is on the end of the running bracket 28A and the other end is on the inner side of the running bracket 28B. Is connected to the end of the.
The coil spring 20 is disposed along the left-right direction of the door 4, and one end thereof is fixed to one running bracket 28 </ b> A and the other end is fixed to the door 4. The coil spring 20 urges the flange 18 outward.

  A transmission mechanism 31 that transmits the operation of the push button 12 to the heel 18 is provided between the heel 18 and the push button 12. The transmission mechanism 31 includes a push bar 32 connected to the push button 12 and a link member 34 connected to an end of the push bar 32. The push bar 32 is provided so as to penetrate from the front side to the back side of the door 4, and is connected to the link member 34 inside the protruding portion 14. The link member 34 is formed in an L shape, and a central portion thereof is rotatably attached to a shaft 34A provided on the back surface side of the door 4 along the vertical direction. Therefore, the link member 34 is rotatable in the left-right direction around the shaft 34A. One arm 34 </ b> B of the L-shaped link member 34 is connected to the end of the push bar 32. Further, the other arm 34C of the link member 34 is connected to one running bracket 28A.

The first lock mechanism 22 includes a first engagement portion 36 that can be engaged with the running hardware 28, and a first drive mechanism 38 that moves the first engagement portion 36 according to the opening / closing position of the door 4. Have The first engaging portion 36 is formed in a U shape as a whole, and is formed of a central portion 36A, an upper portion 36B extending from the upper end of the central portion 36A, and a lower side portion 36C extending from the lower end of the central portion 36A. Has been. The first engaging part 36 is attached to the door 4 so that the upper part of the center part 36A can be rotated by a shaft 36D. The shaft 36 </ b> D is disposed at a position overlapping the running hardware 28 </ b> A, is disposed in a long hole 27 </ b> A formed in the running hardware 28 </ b> A and extends in the left-right direction, passes through the running hardware 28 </ b> A, and is attached to the door 4. A protruding portion 36E protruding downward is formed at the free end of the upper portion 36B. Between the upper part 36B having the protruding part 36E and the central part 36A, a concave part 36F that is concave upward is formed.
One end of a coil spring 37 is attached to the free end of the lower side portion 36 </ b> C of the first engagement portion 36. The other end of the coil spring 37 is fixed to the door 4, and the first engagement portion 36 is urged by the coil spring 37 in the direction in which the lower side portion 36 </ b> C is lowered.

On the other hand, the running fitting 28A is formed with a first engaged portion 40 with which the first engagement portion 36 is engaged at the unlocking position of the running fitting 28A (閂 18), that is, the retracted position of the rod 18. ing. The first engaged portion 40 extends in the left-right direction and protrudes from the running bracket 28A toward the inside of the door 4, and the length of the first engaged portion 40 in the left-right direction is greater than the length of the recess 36F. It is set small. Further, the protruding portion 36E of the first engaging portion 36 is disposed at a position where the first engaged portion 40 hits the protruding portion 36E at the locking position of the running hardware 28A, that is, the protruding position of the collar 18.
Due to the relationship between the first engagement portion 36 and the second non-engagement portion 40, the first engagement portion 36 runs when the first engaged portion 40 is accommodated in the recess 36F. It is provided so as to be rotatable between an engagement position where it engages with the metal fitting 28A and a non-engagement position where the recess 36F moves away from the first engaged portion 40 and does not engage with the metal fitting 28A.

The first drive mechanism 38 urges the first actuating member 42 and the rod-like first actuating member 42 extending in the vertical direction (vertical direction in which the safe 1 is placed on a horizontal plane and the door 4 is closed). It has the 1st coil spring 44 as a 1st operation member urging means, and the link member 46 which connects the 1st operation member 42 and the 1st engaging part 36. As shown in FIG.
The first actuating member 42 has an upper end connected to the end of the link member 46 and a lower end penetrating through a hole formed in the lower surface of the protruding portion 14 so as to protrude from the lower surface. The first actuating member 42 is provided so as to be movable along the axial direction, that is, the vertical direction. When the door 4 is in the closed position, the lower end of the first operating member 42 is in contact with the inner surface of the main body 2 and is accommodated in the protruding portion 14.

One end of the first coil spring 44 is attached to the end of the link member 46, and the other end is fixed to the door 4. Therefore, in the first coil spring 44, the end of the link member 46 is pushed down, and thereby the first actuating member 42 is pushed down, in other words, the lower end of the first actuating member 42 protrudes. The first actuating member 42 is urged toward the direction protruding from the lower surface of the portion 14.
The link member 46 is a plate-like member extending in the left-right direction, and is rotatably attached to the door 4 by a shaft 46A at a substantially center. One end of the link member 46 is attached to the upper end of the first actuating member 42 as described above. The other end of the link member 46 can come into contact with the free end of the lower side portion 36 </ b> C of the first engagement portion 36. Specifically, a flange portion 36G that protrudes in an L shape toward the door 4 is provided at the upper portion of the free end of the lower portion 36C of the first engagement portion 36, and the lower surface of the flange portion 36G. In addition, the other end of the link member 46 can abut.

  The second lock mechanism 24 includes a second engagement portion 48 that can be engaged with the running hardware 28, and a second drive mechanism 50 that moves the second engagement portion 48 according to the opening / closing position of the door 4. Have Similar to the first engagement portion 36, the second engagement portion 48 is formed in a U-shape as a whole, and includes a central portion 48A, an upper portion 48B extending from the upper end of the central portion 48A, and a central portion 48A. And a lower side portion 48C extending from the lower end. As for the 2nd engaging part 48, the upper part of center part 48A is rotatably attached to the door 4 by the axis | shaft 48D. The shaft 48 </ b> D is disposed at a position overlapping the running hardware 28 </ b> A, is disposed in a long hole 27 </ b> B formed in the running hardware 28 </ b> A and extends in the left-right direction, passes through the running hardware 28 </ b> A, and is attached to the door 4. A protruding portion 48E that protrudes downward is formed at the free end of the upper portion 48B. Between the upper part 48B having the projecting part 48E and the central part 48A, an upward concave part 48F is formed.

On the other hand, the running bracket 28A is formed with a second engaged portion 52 in which the second engagement portion 48 can be engaged at the unlocked position of the running bracket 28A (閂 18), that is, the retracted position of the rod 18. Has been. The second engaged portion 52 extends in the left-right direction and protrudes from the running metal 28A toward the inside of the door 4, and the length of the second engaged portion 52 in the left-right direction is greater than the length of the recess 48F. It is set small. Further, the protruding portion 48E of the second engaging portion 48 is disposed at a position where the second engaged portion 52 hits the protruding portion 48E at the locking position of the running bracket 28A, that is, the protruding position of the collar 18.
Due to the relationship between the second engaging portion 48 and the second engaged portion 52, the second engaging portion 48 runs when the second engaged portion 52 is accommodated in the recess 48 </ b> F. It is provided so as to be rotatable between an engagement position where it engages with the metal fitting 28A and a non-engagement position where the recess 48F moves away from the second engaged portion 52 and does not engage with the metal fitting 28A.

The second drive mechanism 50 serves as a second actuating member biasing means that biases the second actuating member 54 that extends in the vertical direction and the second actuating member 54 and the second engaging portion 48. A second coil spring 56.
The second actuating member 54 has an upper end connected to the free end of the lower side portion 48C of the second engaging portion 48, and a lower end penetrating through a hole formed in the lower surface of the protruding portion 14 so as to protrude from the lower surface. Is provided. The second actuating member 54 is provided so as to be movable along the axial direction, that is, the vertical direction. When the door 4 is in the closed position, the second actuating member 54 comes into contact with the inner surface of the main body 2 and is accommodated in the protruding portion 14.

  One end of the second coil spring 56 is attached to the free end of the lower side portion 48 </ b> C of the second engagement portion 48, and the other end is fixed to the door 4. Therefore, the second coil spring 56 has a second direction toward the direction in which the second actuating member 54 is pushed downward, in other words, the direction in which the lower end of the second actuating member 54 projects from the lower surface of the projecting portion 14. The actuating member 54 is biased.

  The spring plunger 26 is provided in the lower part of the protrusion part 14 of the door 4, and is arrange | positioned along the up-down direction. The upper end of the spring plunger 26 is fixed to the door 4, and the lower end of the spring plunger 26 is in contact with the inner surface of the main body 2 through a hole formed in the lower end of the protruding portion 14 at the door closed position. Has been. The spring plunger 26 urges the door 4 in a direction away from the main body 2.

The detection device 11 is disposed in the protruding portion 14 and is located above the running hardware 28B. The detection device 11 has a detector 11A that detects the movement of the running bracket 28B. When the running bracket 28B is in the unlocked position, the detector 11A contacts the running bracket 28B, and the movement of the running bracket 28B is detected. Configured to detect.
The electronic key 15 is provided above the running hardware 28 </ b> A, and the plunger 15 </ b> A is provided so as to protrude and retract from the main body of the electronic key 15. The plunger 15A can be engaged with a recess 28C formed in the upper part of the running metal 28A.

The locking / unlocking mechanism 16 of the safe 1 having the above-described structure operates as follows.
FIG. 4 is a diagram illustrating the operation of the locking / unlocking mechanism 16 according to the embodiment of the present invention. FIG. 5 is a diagram showing the position of the door 4 of the safe 1 in the state of FIG. The locking / unlocking mechanism 16 is in the initial state, that is, when the door 4 is in the closed position as shown in FIG. 5 and the hook 18 is in the locked state in the locking position, as shown in FIG. In the protruding position, that is, the free end 18 </ b> A of the flange 18 protrudes from the protruding portion 14.
In this state, since the door 4 is closed, the lower end of the first operating member 42 is pressed against the inner surface of the main body 2, and the upper end of the first operating member 42 resists the biasing force of the first coil spring 44. The link member 46 is pushed up. For this reason, the link member 46 is arranged in a substantially horizontal direction in the longitudinal direction in a state where the link member 46 is rotated counterclockwise in FIG. 4 about the shaft 46A.

  Since the first engaging portion 36 is biased toward the engaging position in the counterclockwise direction in FIG. 4 by the coil spring 37, the first engaging portion 36 tries to rotate counterclockwise, but the protruding portion 36E protrudes. Since it is in contact with the first engaged portion 40 of the running metal 28A in the position, further rotation is prevented. Therefore, the first engaging portion 36 is stationary in a non-engaged state where it does not engage with the first engaged portion 40. In this state, the other end of the link member 46 is not in contact with the flange portion 36G of the first engagement portion 36.

Since the door 4 is closed, the second operating member 54 of the second engaging portion 48 is pressed by the inner surface of the main body 2, and the upper end of the second operating member 54 is the second coil spring 56. The second engaging portion 48 is pushed up against the urging force. As a result, the second engaging portion 48 is rotated counterclockwise in FIG. 4 about the shaft 48D. In this state, the second engaging portion 48 is located at an engaged position where it does not engage with the second engaged portion 52 of the running hardware 28A. In this state, since the second engaged portion 52 is in the protruding position, the second engaged portion 52 even if the second engaging portion 48 is in the engaged position. 52 is in a position where it is not engaged.
The electronic key 15 is in a state in which the plunger 15A protrudes into the recess 28C of the running metal 28A and engages with the recess 28C, and even if the push button 12 is operated in this state, the locking / unlocking mechanism 16 does not operate.

Next, the unlocking operation of the locking / unlocking mechanism 16 is performed. FIG. 6 is a diagram showing the operation of the locking / unlocking mechanism 16 according to the embodiment of the present invention.
In an initial state in which the door 4 is in the closed position and the safe 1 is in the locked state, the user releases the electronic key 13 by an operation such as inputting a personal identification number with the numeric keypad 10 on the surface of the door 4. When the electronic key 13 is released, the plunger 13 </ b> A is retracted from the recess 28 </ b> C of the running hardware 28, and the running hardware 28 can be moved. When the user pushes the push button 12 into the safe 1, the push bar 32 of the transmission mechanism 31 connected to the push button 12 is pushed into the safe 1 as shown in FIG. 6. The push rod 32 rotates the link member 34 about the shaft 34A. When the link member 34 rotates, the other arm 34 </ b> C slides the metal fitting 28 </ b> A in the left-right direction against the biasing force of the coil spring 20. Since the running bracket 28A and the running bracket 28B are coupled by the link mechanism 30, when the running bracket 28A moves inward (right side in FIG. 6), the running bracket 28B also moves inward (left side in FIG. 6). To do. By this sliding operation, the rod 18 moves from the protruding position (locking position) to the retracted position (unlocking position), and the door 4 is unlocked.

  In this unlocked state, since the running hardware 28A has slid, the contact state of the first engaging portion 36 with the protruding portion 36E is released, and the first engaged portion 40 moves into the recess 36F. Since the first engaging portion 36 is biased by the coil spring 37, the first engaging portion 36 is rotated counterclockwise in FIG. 6 around the shaft 36D by the biasing force, and the first engaged portion is placed in the recess 36F. 40 is accommodated. As a result, the first engagement portion 36 is positioned at the engagement position engaged with the running hardware 28A, the running hardware 28A, 28B is held by the first engagement portion 36, and the rod 18 is unlocked. Held in.

The second engaged portion 52 is also moved into the recess 48F of the second engaging portion 48 by the sliding movement of the running metal 28A. However, since the second engagement portion 48 is held in the non-engagement position by the second actuating member 54, the second engagement portion 48 is maintained in a state where it is not engaged with the second engaged portion 52.
In the state of FIG. 6, the first engagement portion 36 is located at the engagement position where it engages with the running hardware 28 </ b> A. In this state, even if the push button 12 is released, the first engagement portion 36 is in the engagement position. The joint portion 36 holds the flange 18 in the unlocked position.

When the rod 18 moves to the unlocked position, the door 4 is automatically opened by the urging force of the spring plunger 26. At the first door opening position where the biasing force of the spring plunger 26 and the weight of the door 4 are balanced, the door 4 automatically stops.
FIG. 7 is a view showing the operation of the locking / unlocking mechanism 16 according to the embodiment of the present invention. FIG. 8 is a diagram showing the position of the door 4 of the safe 1 in the state of FIG. 7 shows the locking / unlocking mechanism 16 between the closed position of the door 4 and the first opened position. FIG. 8 shows the safe 1 in a state where the first opened position is reached. It is shown.
When the door 4 starts to open due to the urging force of the spring plunger 26, the distance between the lower end of the door 4 and the lower end of the main body 1 starts to open. On the other hand, the first actuating member 42 and the second actuating member 54 are urged downward by the first coil spring 44 and the second coil spring 56, respectively, so that the lower ends abut against the inner surface of the main body 2. Keep the state. Therefore, both the first operating member 42 and the second operating member 54 move in the axial direction toward the lower side of the door 4, that is, in the direction away from the running hardware 28, as shown in FIG. 7. It protrudes from the lower end of the part 14.

  When the first actuating member 42 moves downward, its upper end moves one end of the link member 46 downward. Accordingly, the link member 46 rotates counterclockwise in FIG. 7 about the shaft 46A. The other end of the link member 46 moves upward and pushes up the flange portion 36G of the first engaging portion 36 slightly. As a result, the first engaging portion 36 is slightly rotated clockwise in FIG. 7 about the shaft 36D. By this rotation, the first engaged portion 40 of the first engaged portion 40 is rotated. The first engagement portion 36 is still in the engagement position where it engages with the first engaged portion 40, so that the engagement is not released.

  On the other hand, when the second actuating member 54 moves downward, its upper end moves the second engaging portion 48 downward, and the second engaging portion 48 rotates counterclockwise in FIG. 7 about the shaft 48D. And the second engaged portion 52 is accommodated in the recess 48F. As a result, the second engagement portion 48 is located at an engagement position where the second engagement portion 48 is engaged with the second engaged portion 52, and the running fitting 28 (閂 18) is engaged by the engagement of the second engagement portion 48. Is held in the unlocked position. Accordingly, in the state of FIG. 7, both the first engagement portion 36 and the second engagement portion 48 engage with the running hardware 28A, and hold the running hardware 28 in the unlocked position.

  FIG. 9 is a diagram illustrating the operation of the locking / unlocking mechanism 16 according to the embodiment of the present invention. FIG. 9 shows the position of the locking / unlocking mechanism 16 when the door 4 is further opened from the state of FIG. 7 and moved to the state of being located at the first door opening position of FIG. When the door 4 reaches the first door opening position, as shown in FIG. 9, the first operating member 42 and the second operating member 54 move further downward. When the first operating member 42 moves further downward, the upper end of the first operating member 42 further rotates the link member 46, and the end of the link member 46 moves the flange portion 36 </ b> G of the first engaging portion 36. Push up. The first engagement portion 36 rotates clockwise in FIG. 9 about the shaft 36D. The upper portion 36B of the first engagement portion 36 moves upward, and the engagement between the recess 36F and the first engaged portion 40 is released. Therefore, the first engaging portion 36 is located at the non-engaging position where the first engaging portion 36 is not engaged with the first engaged portion 40 in a state where the door is located at the first door opening position.

  On the other hand, in the second lock mechanism 24, when the second actuating member 54 moves further downward, the second engaging portion 48 further rotates counterclockwise in FIG. Since the second engaged portion 52 is accommodated, the first engaging portion 48 continues to maintain the engagement with the second engaged portion 52.

In other words, during the movement of the door 4 from the closing position to the first opening position, the second engaging portion 48 is moved before the first engaging portion 36 releases the engagement with the running hardware 28. The first engagement portion 36 is disengaged from the running bracket 28 while the second engagement portion 48 is maintained in the engaged state. Therefore, during the movement of the door 4 from the closed position to the first open position, either the first engaging portion 36 or the second engaging portion 48 holds the running hardware 28 in the unlocked position. To do. Further, in the first door opening position shown in FIG. 8, as shown in FIG. 9, the first engagement portion 36 is not engaged with the running hardware 28 but is located in the non-engagement position, and the second engagement position. The portion 48 is engaged with the running hardware 28 and is located at the engagement position.
When the door 4 is opened to the first opening position shown in FIG. 8, the biasing force of the spring plunger 26 and the weight of the door 4 are balanced, so that the door 4 automatically stops at the first opening position.

  FIG. 10 is a diagram illustrating an operation of the locking / unlocking mechanism 16 according to the embodiment of the present invention. FIG. 10 is a view in a case where the door 4 is further opened from the first door opening position to the second door opening position that is fully opened. When the door 4 is opened from the first opening position to the second opening position in FIG. 10, the lower ends of the first operating member 42 and the second operating member 54 are separated from the inner surface of the main body 2, It is maintained at a position moved slightly below the position of FIG. In this state, the first engagement portion 36 is located at a non-engagement position where the first engagement portion 40 is not engaged with the first engagement portion 40, and the second engagement portion 48 is the second engagement portion 52. It is located in the engaging position which engages.

In a state in which the door 4 is opened to the second door opening position, the door 4 is disposed substantially in the horizontal direction as shown in FIG. In this state, the inner surface of the projecting portion 14 is positioned on the upper side, but since this inner surface is flat, this surface can be used as a work surface used for work such as simple writing. it can.
When the door 4 is opened from the first door opening position to the second door opening position, the weight of the door 4 and the urging force of the spring 13 are balanced, so the door 4 stops at an arbitrary position.

  FIG. 11 is a diagram showing the operation of the locking / unlocking mechanism 16 according to the embodiment of the present invention. FIG. 11 shows a state immediately before returning to the door closing position when the door 4 is returned from the second door opening position to the door closing position. As shown in FIG. 11, immediately before the door 4 returns to the closed position, the lower ends of the first operating member 42 and the second operating member 52 are pressed against the inner surface of the main body 2 again, and the coil spring It moves upward against the urging force of 37,44. By the movement of the first and second actuating members 42 and 52, the link member 46 rotates clockwise in FIG. 11, and the end portion of the link member 46 on the first engagement portion 36 side moves downward. . The first engaging portion 36 starts to rotate counterclockwise in FIG. 11 about the shaft 36D by the biasing force of the coil spring 37 in FIG.

  At the same time, the second engaging portion 48 rotates clockwise in FIG. 11 to release the engagement with the second engaged portion 52. At this time, since the first engagement portion 36 has not yet moved to the engagement position, the engagement of the first locking mechanism 22 and the second locking mechanism 24 with the running hardware 28 is released. Since the running bracket 28 is biased outward by the coil spring 20, the running bracket 28A is directed toward the left side in FIG. 11, and the running bracket 28B is directed toward the right side in FIG. Move. By this operation, the running hardware 28A, 28B moves from the unlocked position toward the locked position. At this time, the door 4 is disposed at such a position that most of the peripheral side surface of the protruding portion 14 is accommodated in the inner surface of the main body 2 and the flange 18 faces the inner surface of the main body 2. Therefore, when the collar 18 protrudes, the collar 18 is already positioned inside the main body 2, so that the protruding collar 18 does not hit the main body 2 when the door 4 is closed.

After that, the first engaging portion 36 tries to move to the engaging position, but since the running hardware 28A has already moved to the locking position, the first engaged portion 40 becomes the first engaging portion. 36 is not located in the recess 36F. Accordingly, the protruding portion 36E of the first engaging portion 36 is pressed onto the first engaged portion 40 by the biasing force of the coil spring 37, and further movement is prevented.
The second engagement portion 48 rotates counterclockwise from the engagement position and moves to the non-engagement position.

When the door 4 moves to the closed position and the flange 18 reaches the recess formed on the inner surface of the main body 2, the flange 18 protrudes into the recess by the biasing force of the coil spring 20, and the flange 18 moves to the locking position. With the movement of the running hardware 28A, the push button 12 moves to the surface side of the door 4 via the transmission mechanism 31 and returns to the original position.
When the running bracket 28B moves to the locking position, the detector 11A of the detection device 11 comes into contact with the running bracket 28B, thereby detecting the movement of the running bracket 28 to the locking position. Then, based on the detection signal of the detection device 11, the plunger 15A of the electronic key 15 protrudes and engages with the recess 28C of the running bracket 28A. Thereby, the movement of the running hardware 28 is prohibited and the safe 1 is locked.

According to the above embodiment, the following effects can be obtained.
The locking / unlocking mechanism 16 includes a first locking mechanism 22 and a second locking mechanism 24, and the first locking mechanism 22 releases the rod 18 until the door 4 moves from the closed position to the first opened position. When the first locking mechanism 22 releases the holding of the flange 18, the second locking mechanism 24 holds the flange 18 in the unlocked position before the first locking mechanism 22 releases the holding when the first opening position is reached. Until the door 4 moves from the first door opening position to the second door opening position, the second lock mechanism 24 holds the collar 18 in the unlocked position. Either the lock mechanism 22 or the second lock mechanism 24 holds the rod 18 in the unlocked position. Therefore, even if the hand is released from the push button 12, it is possible to prevent the rod 18 from returning to the locked position. Therefore, it is possible to prevent the flange 18 from protruding from the door 4 when the door 4 is open, and to prevent the flange 18 from hitting the main body 2 and being damaged when the door 4 is closed.

  The first lock mechanism 22 includes a first engagement portion 36 and a first drive mechanism 38, and the second lock mechanism 24 includes a second engagement portion 48 and a second drive mechanism 50. Therefore, the first engaging portion 36 and the second engaging portion 48 can be driven separately. Therefore, the first engaging portion 36 and the second engaging portion 48 can be engaged with the flange 18 at appropriate timing, and the holding operation of the flange 18 at the unlocked position is reliably and stably performed. be able to.

  The first actuating member 42 and the second actuating member 54 are provided so as to be able to project from the projecting portion 14 of the door 4, and project as the door 4 is opened, whereby the first engaging portion 36 and the second engaging member 54 are engaged. Since the portion 48 is rotationally driven, the first engagement portion 36 and the second engagement portion 48 can be operated in conjunction with the opening / closing position of the door 4 according to the opening / closing position of the door 4. Therefore, a reliable engagement operation can be performed at an appropriate timing.

  Since the spring plunger 26 is provided between the door 4 and the main body 2, the door 4 can be automatically opened from the closed position to the first open position after the door 4 is unlocked. Normally, the door 4 of the safe 1 is formed heavy, and a force is required for the opening operation. However, in this embodiment, the door 4 automatically opens to the first opening position. It can be done easily. Further, since the door 4 automatically stops once at the first opening position, it is possible to prevent the door 4 from moving all the way to the full opening position. Therefore, the sudden movement of the heavy door 4 can be prevented, and a safe door opening operation can be performed.

  Since the spring 13 is provided between the door 4 and the main body 2 and biases the door 4 in the closing direction, the door 4 is opened from the first opening position to the second opening position. The weight of the door 4 and the biasing force of the spring 13 are balanced, and the door 4 can be stopped at an arbitrary position. Therefore, the door 4 can be prevented from moving suddenly, and the door 4 can be easily operated.

The present invention is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.
The locking / unlocking mechanism is provided on the door in the above-described embodiment, but is not limited to such a mechanism, and may be provided on the main body, for example. In that case, the bag may be configured to protrude toward the door. The first and second actuating members may also be provided so as to be brought into contact with the door and protrude toward the door.
The locking / unlocking mechanism is not limited to the one provided with the hook in the left-right direction, and may be provided so as to be slidable in the vertical direction, for example. Further, the locking / unlocking mechanism is not limited to the one having a pair of ridges and provided so as to be able to protrude in the opposite direction to the outside, and may have a structure having only one ridge, for example, Alternatively, a structure in which a plurality of ridges are provided so as to protrude in the same direction may be used.

The first lock mechanism and the second lock mechanism are not limited to those having the first drive mechanism and the second drive mechanism separately, for example, the first engagement portion and the second engagement portion are provided as one. You may comprise so that it may drive with a drive mechanism.
The first engagement portion and the second engagement portion are not limited to those that rotate and engage with the heel, but may engage with the heel through any motion such as linear motion.

In the first drive mechanism and the second drive mechanism, the first and second actuating members protrude according to the opening / closing position of the door, and the amount of rotation of the first and second engaging portions is controlled by the amount of protrusion. However, the present invention is not limited to this. For example, the opening / closing position of the door may be detected by a sensor or the like, and the first and second engaging portions may be driven based on the detection result.
Further, the first and second drive mechanisms have the first and second actuating member urging means for energizing the first and second actuating members. An arbitrary drive mechanism that moves the first engagement portion and the second engagement portion according to the movement position of the second actuation member can be employed.

The operation means is not limited to the push button system, and any operation means such as a handle can be employed.
Further, the door is not limited to the door that opens about the lower end, and may be configured to open, for example, on the left or right side and the upper end.
Further, the rod is not limited to a sliding movement between the protruding position and the retracted position, and may be a structure that locks the door and the main body by rotating, for example.

1 Safe 2 Body 4 Door 12 Push button 18 閂 20 Coil spring (biasing means)
22 First lock mechanism 24 Second lock mechanism 26 Spring plunger (door biasing means)
28 running metal 36 first engaging portion 38 first drive mechanism 42 first actuating member 44 first coil spring (first actuating member biasing means)
48 Second engagement portion 50 Second drive mechanism 54 Second actuation member 56 Second coil spring (second actuation member biasing means)

Claims (5)

A locking / unlocking mechanism for locking and unlocking the door to the main body,
It is attached to the main body and protrudes toward the door, or is attached to the door and protrudes toward the main body, and locks the door with respect to the main body, and retracts into the attached main body or the door. And a scissors provided movably between the unlocking position for unlocking the door with respect to the main body,
Urging means for urging the hook toward the locking position;
An operation means operable by a user to move the rod from the locked position to the unlocked position;
When the heel is moved from the locked position to the unlocked position by operation of the operating means in a state where the door is in the closed position, the heel is held in the unlocked position, and the door is moved from the closed position. A first locking mechanism for releasing the holding of the bag in the unlocked position when moved to the first door opening position;
When the door moves from the closed position to the first door opening position, the first lock mechanism holds the hook in the unlocked position before releasing the hook holding, and the door A second locking mechanism that maintains the hook in the unlocked position when it is opened further than the first opening position, and releases the hook holding when the door is in the closed position; With
Locking and unlocking mechanism characterized by that. The first lock mechanism is configured to move the engagement portion in accordance with the first engagement portion that engages with the heel and holds the heel in the unlocked position, and the opening / closing position of the door. A first drive mechanism,
The second locking mechanism is configured to move the engagement portion in accordance with a second engagement portion that engages with the heel and holds the heel in the unlocked position, and an opening / closing position of the door. A second drive mechanism;
The locking / unlocking mechanism according to claim 1. The first engagement portion is provided so as to be rotatable with respect to the collar between an engagement position that engages with the collar and a non-engagement position that does not engage with the collar.
The first drive mechanism has one end connected to the first engagement portion, the other end protruding from the main body or the door toward the door or the main body, and the other end at the closed position. A first actuating member that contacts the door or the main body, and a first actuating member biasing means that biases the first actuating member toward the protruding direction,
The second engagement portion is provided so as to be rotatable with respect to the collar between an engagement position that engages with the collar and a non-engagement position that does not engage with the collar.
The second drive mechanism has one end connected to the second engaging portion, the other end protruding from the main body or the door toward the door or the main body, and the other end at the closed position. A second actuating member that abuts against the door or the main body, and a second actuating member biasing means that biases the second actuating member toward the protruding direction.
The locking / unlocking mechanism according to claim 2. Door urging means for urging the door from the closed position to the first open position;
The locking / unlocking mechanism according to any one of claims 1 to 3. A main body and a door;
The locking / unlocking mechanism according to any one of claims 1 to 4, provided on the main body or the door,
A safe characterized by that.

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