JP4338691B2 - Locking door device - Google Patents

Description

    The present invention relates to a lock door device that prevents forgetting to lock such as a door lock.

The conventional locking door device solves forgetting to lock and unplugging, and forgetting to close the door by electric means (see, for example, Japanese Patent Application Laid-Open No. 2003-74227). 6 (a) and 6 (b) show the configuration of a conventional locking door device. When the key is locked, the collar 26 is positioned in the right direction as shown in FIG. At this time, the operating rod 20 and the stopper piece 28 formed integrally therewith do not slide upward because they are blocked by the rod 26. Since the handle for opening the door (not shown) is interlocked with the stopper piece 28, the door cannot be opened in this state. When a key is inserted into a cylinder lock (not shown) from the outside of the door and rotated, the collar 26 moves to the left as shown in FIG. Then, since the operating rod 20 and the stopper piece 28 are slidable, the handle can be turned and the door can be opened. Then, when the collar 26 moves to the left, the pin 42 provided on the collar 26 presses the contact 36 of the first sensor 37. As a result, unlocking is detected as an electric signal, a buzzer is sounded under control by a CPU (not shown), and a process of alarming forgetting to lock is performed.
JP 2003-74227 A

However, the conventional door device with a lock has a problem that the purpose cannot be achieved in a state such as a power failure or a battery exhaustion because of a configuration that issues an alarm by an electric means.
In view of such a problem, an object of the present invention is to provide a door device with a key that can prevent forgetting to lock such as a door lock without providing an electrical alarm device.

Said lock with doors device of the present invention to solve the conventional problems, a panel having an opening portion, is disposed in the opening, and the openable door provided in the panel, the closed position of the door and The lock can be rotated between the open positions of the door, and the lock can be inserted / removed only in the closed position of the door, and is provided on the back side of the panel of the lock, and rotates in conjunction with the rotation of the lock. Cam, a swinging shaft disposed between the opening and the lock on the back surface of the panel, and swingable about the swinging shaft. When the door is closed, the door When the door protrusion provided on the back surface of the door contacts, rotates in a direction away from the back surface of the panel , moves to the first position, and the door is opened, the door protrusion moves backward. Te, rotates in the direction toward the rear surface of the panel, swinging pieces to move to the second position The a swingable pivot shaft to the shaft, when said door is closed, by rotating in the direction toward the back surface of the panel, and move in the rotational orbit outside the protrusion provided on the cam, When the door is opened, it is provided with a swinging protrusion that rotates in a direction away from the back surface of the panel and moves in a rotation track of the protrusion, and the swinging piece is in the first position. The protrusion does not contact the swing protrusion, the key can be freely rotated between the door open position and the door close position, and the swing piece is in the second position. In some cases , the protrusion comes into contact with the swinging protrusion and the rotation of the lock is restrained at the open position of the door.

  According to the lock door device of the present invention, the opening and closing of the door and the rotation of the lock are coordinated, and when the door is open, the lock is rotationally restricted and cannot be removed from the lock, thus preventing forgetting to lock. .

  The present invention relates to a door device with a lock. More specifically, an example of the application will be described. For example, a lock door device for use in a memory card recording machine for a video device mounted on a special vehicle such as a patrol car to prevent the theft of a memory card or the like. Concerning structure. Of course, it goes without saying that the present invention is not limited to such applications.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view of a lock door device according to an embodiment in which the present invention is applied to a card theft prevention door of a memory card recorder. In FIG. 1, a panel 1 (hereinafter abbreviated as a panel) of a memory card recorder is provided with an opening 1-3. In the opening 1-3, there are two upper and lower slots 1-4 for inserting a memory card. By inserting the memory card into the slot 1-4, recording / reproduction to / from the memory card is performed. . Further, in order to prevent the theft of the memory card, a door 4 is provided at the opening 1-3 so that the door 4 can be locked. The door 4 is installed in the opening of the panel 1 so as to be rotatable by the door shaft 5.

  A groove 1-1 is provided at the upper end of the opening 1-3. A rod-shaped moving piece 2 is disposed on the back side of the groove 1-1. The movable piece 2 is formed with a pair of substantially C-shaped claw receptacles 2-1, and the pair of claw receptacles 2-1 is fitted in the groove 1-1. The movable piece 2 can be slid left and right within a predetermined range. The moving piece 2 is urged by a coil spring 3 in the left direction in the front view of FIG. A pair of lock claws 4-1 are provided on the upper end of the rear surface of the door so as to protrude rearward. When the door 4 is closed, the lock claws 4-1 are fitted into the grooves 1-1 so that the claws of the movable piece 2 are provided. The door 4 is closed by engaging with the receptacle 2-1, and the rotation of the door 4 is restricted.

  A lock 6 in which the key 13 can be inserted and removed only at a predetermined rotational position (hereinafter abbreviated as a lock, and a structural description is also omitted for known technology) has a screw hole 6-1 provided on the left side of the opening of the panel 1. It is inserted into 1-2, and is fixed with a nut (not shown) from the back so that its rotation axis (not shown) is perpendicular to the panel 1. A cam 7 is fixed to the rotation shaft of the lock 6 with a screw 8. The cam 7 is a plate body, and has a protrusion 7-1 with which a rocking protrusion 9-1, which will be described later, abuts, and a pressing portion 7-2 that pushes the end of the moving piece 2 on the outer periphery. The lock 6 has a rotation shaft. When the key 13 is inserted and rotated, the rotation shaft (and the cam 7 associated therewith) is opened with the door 4 opened and the door is closed and locked. It can be rotated between the closed positions of the doors in the closed state. In FIG. 1, the left end surface of the moving piece 2 biased in the left direction is in contact with the pressing portion 7-2 of the cam 7.

  The swing shaft 11 is disposed between the opening 1-3 on the back surface of the panel 1 and the lock hole 1-2 in the vertical direction, and is pivotally supported by the shaft hole 10-1 of the metal fitting 10 fixed to the back surface of the panel 1. ing. The swing piece 9 and the swing protrusion 9-1 are configured integrally with the swing shaft 11. The center part of the metal fitting 10 is bent into a U shape, and both end parts 10-2 are fixed to the back surface of the panel 1 with screws 15. As shown in FIG. 1, the pair of shaft holes 10-1 are formed so as to be opposed to end portions of the metal fitting 10 bent in a U shape, and are formed so that the swing shaft 11 can be vertically supported.

  The oscillating piece 9 and the oscillating protrusion 9-1 are centered on the oscillating shaft 11 between a first position (FIG. 5A and a second position [FIG. 5B]), which will be described later. It swings in the direction of the rotation axis of the lock 6. The swing piece 9 comes into contact with a door protrusion 4-2 provided on the rear surface of the door by swinging. The swing protrusion 9-1 is brought into contact with the protrusion 7-1 provided on the cam 7 by swinging. The oscillating piece 9 and the oscillating protrusion 9-1 are urged in the clockwise (clockwise) direction by the torsion spring 12, and are stationary at the second position by the urging force of the torsion spring 12 without any other constraint. It is configured to do.

The operation of the lock door device according to the embodiment configured as described above will be described with reference to FIGS. 2 to 4 and FIGS. 5 (a) and 5 (b).
First, the door closed state will be described as an initial state. FIG. 2 is a partial cross-sectional view showing the operation of the swing piece 9 in the closed state of the door, and FIG. 5A is a perspective view of the main part on the back side in the closed state of the door. When the door 4 is closed, the door protrusion 4-2 presses the swing piece 9 away from the door 4 against the biasing force of the torsion spring 12, and the swing piece 9 swings. It rotates about the shaft 11 and is stationary at the first position. A swinging protrusion 9-1 is provided on the back surface of the end of the swinging piece 9 different from the side in contact with the door protrusion 4-2. In the state in which the swing piece 9 is in the first position, the swing protrusion 9-1 is retracted (not abutted) from the rotation trajectory of the protrusion 7-1 on the cam 7 to the back side of the panel 1, so that the cam 7 is in a freely rotatable state with respect to the swinging protrusion 9-1. On the other hand, the cam 7 is pressed clockwise in FIG. 2 by the end of the moving piece 2 urged by the coil spring 3, so that the lock 6 interlocked with the cam 7 can be freely inserted and removed. It is in the state rotated to (door closed position). However, FIG. 5A illustrates a state before the lock 6 reaches the door closed position.

  Next, the operation when the door is opened with a key will be described. FIG. 3 is a partial cross-sectional view showing operations related to the rotation of the key 13 and the opening and closing of the door 4. When the key 13 is inserted into the lock 6 in FIG. 3 and rotated in the direction of the semicircular arrow to the door open position, the cam 7 fixed to the rotation shaft of the lock 6 moves against the biasing force of the coil spring 3. The end of the piece 2 is pressed. The pushed moving piece 2 moves rightward, and the door 4 is opened by releasing the engagement between the claw receptacle 2-1 of the moving piece 2 and the lock claw 4-1 of the door 4. The moving piece 2 is stopped in a state where it is pushed by the cam 7 and moved rightward.

  4 is a partial cross-sectional view showing the operation of the swing piece 9 in the door open state, and FIG. 5B is a perspective view of the main part on the back side in the door open state. When the door 4 is opened, the door protrusion 4-2 rotates and retracts in the direction of the arrow in FIG. In the closed state of the door, the swing piece 9 is urged in the direction of the door protrusion 4-2 by the torsion spring 12, contacts the door protrusion 4-2, and is stationary at the first position. However, when the door 4 is opened, it rotates clockwise around the swing shaft 11 in synchronism with the backward movement of the door protrusion 4-2 and stops at the second position. When the swing piece 9 swings to the second position by opening the door 4, the swing protrusion 9-1 moves into the rotation path of the protrusion 7-1 on the cam 7, so that the cam 7 opens the door. The rotation is suppressed in the position.

  With the above operation, when the door 4 is opened, the rotation of the lock 6 is restricted at the door open position. As a result, the key 13 cannot be removed from the lock 6 in the door open state. That is, when the door 4 is opened, the key 13 is always inserted into the lock 6.

  Next, an operation when the door 4 is closed again will be described. When the door 4 is closed, the door protrusion 4-2 presses the swing piece 9 from the back side. Since the swing piece 9 rotates to the first position around the swing shaft 11 by being pushed by the door protrusion 4-2, the swing protrusion 9-1 is within the rotation path of the protrusion 7-1 on the cam 7. The rocking protrusion 9-1 and the protrusion 7-1 are unlocked, and the cam 7 can freely rotate. As a result, the moving piece 2 that has been prevented from moving by the pressing portion 7-2 of the cam 7 moves to the left by the biasing force of the coil spring 3 to the left, and the cam 7 is pushed by the end of the moving piece 2. And rotate to the closed position of the door.

  Further, when the door 4 is closed, the claw receptacle 2-1 of the moving piece 2 moved to the left and the inclined portion of the locking claw 4-1 of the door 4 are pressed against each other, and the locking claw 4-1 moves the moving piece 2 to the right. The lid 4 is locked by the biasing force of the coil spring 3, but this portion is a well-known technique and will not be described in detail.

With the above operation, when the door 4 is closed, the lock 6 is rotated to the door closed position and locked, and the key 13 can be removed from the lock 6.
According to this configuration, when the door is opened, the rotation of the lock 6 is restricted at the door open position, and as a result, the key 13 cannot be removed from the lock 6 in the door open state. That is, when the door 4 is opened, the key 13 is always stuck in the lock 6. When the door is closed, the lock 6 is rotated to the door closed position and locked, and the key 13 can be removed from the lock 6. For this reason, the key 13 is not lost when the door 4 is opened, or the door 13 is left misplaced and forgotten to lock the door. Further, since the key 13 cannot be removed from the lock 6 unless the door is closed, forgetting to lock can be prevented.

  In the present embodiment, the door 4, the lock claw 4-1 and the door protrusion 4-2 are integrally formed. However, the lock claw 4-1 and the door protrusion 4-2 may be separate parts that are locked to the door. good.

  The door device with a lock according to the present invention can be unlocked from the lock only when the door is closed with few parts and a simple configuration without providing an electrical alarm device. This is useful for forgetting.

It is a disassembled perspective view of the door apparatus with a lock | rock in embodiment of this invention. It is a fragmentary sectional view which shows operation | movement of the rocking | fluctuation piece in the door closed state of the door apparatus with a lock | rock in embodiment of this invention. It is a fragmentary sectional view which shows the key and door opening / closing related operation | movement of the door apparatus with a lock | rock in embodiment of this invention. It is a fragmentary sectional view which shows operation | movement of the rocking | swiveling piece in the door open state of the door apparatus with a lock | rock in embodiment of this invention. It is a perspective view for demonstrating operation | movement of a rocking | fluctuation piece. It is a detection part block diagram of the conventional locking door apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Panel 4 ... Door 4-2 ... Door protrusion 6 ... Lock 7 ... Cam
7-1 ... Projection 9 ... Swing piece 9-1 ... Swing projection 13 ... Key

Claims (2)

A panel with an opening ;
A door installed in the opening and capable of opening and closing;
A lock provided on the panel , the key can be rotated between the closed position of the door and the open position of the door, and the key can be inserted and removed only at the closed position of the door;
A cam that is provided on the back side of the panel of the lock and rotates in conjunction with the rotation of the lock;
A rocking shaft disposed between the opening and the lock on the back surface of the panel;
When the door is closed, when the door is closed, the door protrusion provided on the back surface of the door contacts and rotates in a direction away from the back surface of the panel . When the door is opened when the door is opened, the swing piece that rotates in the direction approaching the back surface of the panel and moves to the second position as the door protrusion retracts ;
When the door is closed, when the door is closed, it rotates in a direction approaching the back surface of the panel, moves out of the rotation trajectory of the projection provided on the cam, When the door is opened, it is provided with a swinging protrusion that rotates in a direction away from the back surface of the panel and moves into the rotation orbit of the protrusion ,
When the swing piece is in the first position, the protrusion does not contact the swing protrusion, and the key can be freely rotated between the open position of the door and the closed position of the door. , when the swinging piece is in the second position, the protrusion abuts against the rocking protrusion, the lock of the rotation is the lock with doors device to be restrained in the open position of the door. The door includes a lock claw provided on the back surface,
A claw receiver that engages with the lock claw, and a movable piece that moves by being pushed by the cam when the cam rotates to the door open position in contact with the cam;
When the lock is set to the open position of the door, the cam moves the moving piece, the claw catcher and the locking claw are disengaged, the door is opened, the door protrusion of the door is retracted, and the swing piece And the swing protrusion moves to the second position, the protrusion of the cam contacts the swing protrusion, and rotation of the cam is suppressed,
When the door is closed, the door protrusion pushes the swing piece, the swing piece and the swing protrusion move to the first position, and the swing protrusion and the cam protrusion are unlocked, The door device with a lock according to claim 1, wherein the lock rotates to a closed position of the door.

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