JP4835576B2 - Door opening / closing mechanism - Google Patents

Description

  The present invention relates to a door opening / closing mechanism.

  2. Description of the Related Art Conventionally, a door that is openably and closably attached to an opening of a storage device is locked with an electric lock, and the door is automatically opened at the same time as the electric lock is unlocked. However, if the door suddenly and automatically opens, it is dangerous to collide with a person.

  Therefore, Patent Document 1 discloses that the door is automatically opened at the same time as the electric lock is unlocked, and the door opening speed is made gentle.

  In the conventional example shown in Patent Document 1, a locking tool having a locking portion is provided rotatably at an edge of an opening of a storage device main body constituting the main body of the storage device, and an electric lock is provided on the locking portion. And when the electric lock unlocks the second locking portion, the locking portion is rotated from the inside of the storage device body to the outside of the storage device body. A torsion coil spring is provided to automatically open the door, and the opening speed of the door that is automatically opened by the elastic force of the torsion coil spring is reduced by the action of the damper device. ing.

In the conventional example shown in Patent Document 1, it is necessary to provide a damper device, the number of parts increases, the lock of the electric lock is released, and the door is twisted by the elastic force of the coil spring. When the door is automatically opened, the door is gently opened by the action of the damper device, so even if the electric lock is unlocked, the door does not open suddenly. Although the door does not collide suddenly, the damper device will continue to operate until the door is twisted and fully opened by the spring force of the coil spring. Since the door opens gently with the action of the damper device, the door opens with a fluffy feeling, which makes it cheaper.
Japanese Patent Laid-Open No. 08-260785

  The present invention has been invented in view of the above-mentioned conventional problems, and when the electric lock is unlocked, the door is automatically opened at the beginning of opening by applying a force to open the door. With a simple configuration without providing a damper device, the door can be prevented from opening suddenly at the beginning of opening, and after decelerating, the door can be opened quickly by hand, providing an easy-to-operate door opening / closing mechanism. The issue is to provide.

In order to solve the above-described problems, the door opening and closing mechanism according to the present invention includes a storage device main body 3 and a rotatable locking tool having a locking portion 5 provided at an edge of the opening 4 of the storage device main body 3. 6, a door 9 that is pivotally connected to the edge of the opening 4 by a pivot 7 to shield the opening 4, and the locking portion provided on the door 9 when the door 9 is closed. The storage device 1 includes a locked portion 8 that is locked to 5, and the locking device 6 is provided with a second locking portion 18 that engages with the electric lock 14. A drive unit 10 is provided for opening the door 9 by rotating the locking portion 5 from the inside of the storage device body 3 to the outside of the storage device body 3 when the locking portion 18 is unlocked. An adjusting means 19 is provided for preventing the door 9 from opening vigorously when the driving part 10 applies a force to open the door 9. In stage door 9 when you are released the locking while opening press door 9 which rotates about the axis in the storage device 1 outward from the housing main body 3 medium side by the driving unit 10 is opened constant from the fully closed state The locked portion 8 is configured to be detached after the locked portion 8 is hooked on the hook portion 20 provided at the tip of the locking portion 5.

  With this configuration, when the electric lock 14 is unlocked and the electric lock 14 unlocks the second locking portion 18, the locking tool 6 is rotated by the driving portion 10 to lock the locking portion. 5 is rotated from the inside of the storage device body 3 to the outside of the storage device body 3 to open the door 9. At this time, the door 9 starts to open by the rotation of the locking device 6 by the adjusting means 19. When opening automatically, it will be prevented from opening vigorously. Moreover, the adjusting means 19 can be configured with a simple configuration in which the hook portion 20 is provided at the tip of the locking portion 5. Further, after the locked portion 8 is detached from the hooking portion 20 provided at the tip of the locking portion 5, the locking tool 6 does not act to open the door 9, so that the locked portion 8 is pulled. After separating from the hanging portion 20, the door 9 can be quickly opened by hand.

  As described above, according to the present invention, when the locking portion is rotated about the shaft from the inside of the storage device main body to the outside of the storage device to release the locking, the locked portion is at the tip of the locking portion. Since it is configured so that the locked part is released after being hooked on the provided hook part, when the electric lock is unlocked, the opening force is applied to the door so that the door automatically opens at the beginning of opening. In this case, it is possible to prevent the door from opening suddenly at the beginning of opening with a simple configuration without providing a separate damper device, so that it does not collide with people near the door, and is safe, and After the hooked portion provided at the tip of the locking portion is once hooked and the locked portion is released, the door can be quickly opened by hand, and the operability is good.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  An opening 4 is provided in the storage device main body 3 constituting the main body of the storage device 1, and a door 9 is attached to the opening 4 so as to be freely opened and closed. One end of the door 9 is pivotally connected to the edge (one side edge) of the opening 4 of the storage device body 3 by a pivotal support 7, and the other end of the door 9 (opposite to the pivotal support 7). A locked portion 8 is provided on the back surface side of the side end portion. In the embodiment, the locked portion 8 is configured by laying a locked bar 8 a between the tips of a pair of protruding pieces 29 protruding from the back surface of the door 9.

  A lock mechanism housing 21 as shown in FIG. 5 is provided at the edge (other side edge) of the opening 4 of the storage apparatus body 3 opposite to the pivot 7 to which the door 9 is attached. As shown in FIG. In the lock mechanism housing 21, a locking tool 6 is rotatably attached and an electric lock 14 is attached.

  The locking tool 6 has a U-shaped portion 22 provided at one end, and the U-shaped portion 22 engages and locks the locked bar 8 a of the locked portion 8 provided on the door 9. And a central portion of the locking device 6 is pivotally supported on the lock mechanism housing 21 by a shaft 13, and is further connected to the other end portion of the locking device 6. A concave second locking portion 18 is provided.

  The U-shaped part 22 constituting the locking part 5 at one end of the locking tool 6 is such that one side piece 22a of the U-shaped opposing side piece parts 22a and 22b is more than the other side piece part 22b. It is long and protrudes toward the distal end side, and a portion protruding from the distal end of the side piece portion 22b of the distal end portion of the side piece portion 22a is an introduction / lead-out portion 23. A protrusion 11 protrudes from the leading end of the introduction / lead-out part 23 toward the opening side of the U-shaped part 22, and the inside of the protrusion 11 serves as a hook part 20 constituting the adjusting means 19. 11 is a guide portion 28.

  In the embodiment shown in the accompanying drawings, the protrusion 11 has a substantially triangular shape that becomes thinner toward the protruding tip, and the hooking portion 20 inside the protruding portion 11 is inclined so that it is closer to the outer side of the protruding tip. The guide portion 28 on the outer side of the protrusion 11 is inclined so as to be closer to the inner side as the protruding tip ends. The angle formed by the introduction / derivation unit 2 and the hooking unit 20 is an obtuse angle.

  Here, when the distance between the protruding tip of the protrusion 11 and the inner tip of the other side piece 22b of the U-shaped portion 22 is M and the diameter of the locked bar 8a is N, FIG. As in b), the relationship is M = N + α.

  A spring 10 a is attached to the locking tool 6, and a spring force is applied to rotate so that the tip of the locking tool 6 protrudes outward from the opening 4 of the storage device body 3. The lock mechanism housing 21 is provided with a rotation preventing portion 30, and when the distal end portion of the locking device 6 protrudes out of the storage device main body 3 by the spring 10 a, the locking device 6 is rotated in a predetermined inclination posture. The predetermined inclination posture is maintained without hitting 30 and further rotating. In a predetermined inclination posture in which the distal end portion of the locking tool 6 protrudes out of the storage device main body 3 and hits the rotation preventing portion 30, the distal end portion of the side piece portion 22 a projects to the distal end of the introduction / lead-out portion 23. The guide portion 28 of the projecting portion 11 is set so as to be at the same height as the upper portion of the locked bar 8a provided on the door 9. When the door 9 is closed, the upper portion of the locked bar 8a is It hits the guide portion 28 and advances while pushing up the guide portion 28, hits the introduction / derivation portion 23, and further rotates in the direction to close the door 9, so that the locked rod 8 a hits the introduction / derivation portion 23 and pushes it. Then, the locking tool 6 is rotated to stand and the locked bar 8a is guided by the introduction / lead-out portion 23 so that it is guided from the opening of the U-shaped portion 22 toward the groove back side of the U-shaped portion 22. The locking rod 8a is fitted and locked as shown in FIG.

  The electric lock 14 is composed of an electromagnetic solenoid, and a lock rod 14a having an inclined surface at the tip is provided at the end of the plunger of the electromagnetic solenoid. The plunger provided with the lock rod 14a at the tip is biased in the axial direction by a spring (not shown) in the protruding direction, and energizes the electromagnetic solenoid, so that the lock rod is placed at the tip against the spring. The plunger provided with 14a is retracted, and when energization is stopped, the plunger protrudes by a spring force.

  When the locking tool 6 is retracted into the storage device main body 3 and is in the standing posture, the lock rod 14a is guided by the inclined surface at the tip and locked to the second locking portion 18 to open the storage device main body 3. The part 4 is locked with the door 9 closed.

  On the other hand, when the electric solenoid 14 is energized, the plunger of the electromagnetic solenoid moves backward, that is, when the lock rod 14a moves backward and the locking with the second locking portion 18 is released, the spring 10a is locked by the spring force. The tool 6 rotates so that the tip of the locking tool 6 protrudes outward from the opening 4 of the storage device body 3.

  As described above, when the locking member 6 is rotated by the spring 10a which is the driving unit 10 so that the tip portion protrudes outward from the opening 4 of the storage device body 3, the U-shaped portion 22 is rotated. The locked bar 8a fitted and locked in the U-shaped portion 22 is pushed outward (outside) while being pushed outward by the rotating side piece portion 22a. Further, the locked rod 8a is pushed by the introduction / lead-out portion 23 at the front end of the side piece 22a, and is thereby led out vigorously (outward) to vibrate the door 9. At this time, as shown in FIG. 4 (a), the locked rod 8a hits the hooking portion 20 constituting the adjusting means 19 provided at the tip of the introducing / leading portion 23 to reduce the momentum. This prevents the door 9 from opening vigorously when the drive unit 10 applies a force to open the door 9. That.

  Here, the turning force of the latching tool 6 by the driving unit 10, the inclination angle of the hooking part 20 (the angle formed by the hooking part 20 and the introduction / derivation part 23), the protruding length of the hooking part 20, etc. Is arbitrarily set, the locked bar 8a hits the hooking portion 20 to reduce the momentum, and simultaneously moves forward (outward) along the inclined hooking portion 20, thereby FIG. As shown in FIG. 4 (c), the hook 20 is slightly rotated so as to push up the hook 20 upward as shown in FIG. 4C, and then slowly moves forward (outward) over the hook 20 as shown in FIG. The door 9 is opened slowly, or the locked bar 8a hits the hooking part 20 and the momentum is reduced, and the locked bar 8a hits the hooking part 20 as shown in FIG. You may make it stop in the state of).

  In the former, the force of the spring 10a, which is the drive unit 10, does not act on the door 9 after the locked bar 8a gets over the hooking part 20 in a state where the momentum is reduced. After 8a gets over the hooking part 20, the door 9 can be grasped by hand irrespective of the adjusting means 19 and the driving part 10, and can be fully opened quickly with a light operation.

  In the latter case, the door 9 can be grasped by hand and opened to the fully open position in a state where the locked bar 8a is in contact with the hooking portion 20 and stopped. When the door 9 is grasped and opened in the state of FIG. 4A in which the locked bar 8a is stopped by hitting the hooking portion 20, the locked bar 8a is moved as shown in FIG. 4B. By pushing up the hooking portion 20 and overcoming it, it moves forward (outward) as shown in FIG. 4C, so that it can be fully opened quickly. Also in this case, after the locked bar 8a gets over the hooking part 20, the force of the spring 10a as the driving part 10 does not act on the door 9, and the locked bar 8a gets over the hooking part 20 Regardless of the adjustment means 19 and the drive unit 10, the door 9 can be grasped by hand and quickly opened fully with a light operation.

  In any case, when the electric lock 14 is unlocked and the second locking portion 18 is unlocked by the electric lock 14, the driving portion 10 applies a force for opening the door 9. In the above, the adjusting means 19 can prevent the door 9 from opening vigorously when it automatically opens at the beginning of opening by the rotation of the latching tool 6, and the door 9 suddenly opens at the beginning of opening and the person near the door 9 is opened. It is possible to avoid colliding with.

  Moreover, since it is not necessary to provide a separate damper device as in the prior art, the configuration can be simplified.

  A plurality of storage devices 1 having the above-described configuration are arranged side by side in the vertical direction, the horizontal direction, or the vertical and horizontal directions to form the collective storage device 2.

  An example of the storage device 1 is a mail box. Hereinafter, the storage device 1 will be described with an example of a mail box.

  FIGS. 6 to 8 show examples of the collective storage device 2. In this embodiment, as shown in FIG. 8, the storage box 40 is vertically divided into a plurality of partitions 43 and a plurality of storages are stored in one storage box 40. This is an example in which the apparatus main body 3 is formed. A mail input port 42 is provided at a portion corresponding to each storage apparatus main body 3 of the storage box 40, and a door 9 is attached to each opening 4 of each storage apparatus main body 3. In addition, the storage device 1 is configured by attaching a lock mechanism housing 21 provided with a locking tool 6, an electric lock 14, and a holding portion 12 to each storage device main body 3, and serving as a mail box. That is, in the embodiment of FIG. 6 to FIG. 8, an example in which a plurality of storage devices 1 that are postboxes are formed in one storage box 40 is installed in a lobby of an apartment house.

  In the embodiment of FIGS. 6 and 7, a plurality of storage boxes 40 are arranged in the vertical and horizontal directions to form the collective storage device 2, and in this embodiment, the storage boxes 40 arranged in the vertical direction are respectively It is placed on the delivery box 41.

  One of the plurality of doors 9 of the lower storage box 40 among the storage boxes 40 arranged above and below is provided with an authentication unit 15 and includes a non-contact IC provided with a semiconductor memory provided to each door of the apartment house. Information registered in the authentication medium by bringing an authentication medium consisting of a card or an authentication medium that can be used in the same manner as a non-contact IC card using a semiconductor memory built in a mobile phone close to or in contact with the authentication unit 15 However, collation is performed to determine whether or not the prescribed relationship with the pre-registered information is satisfied. If the collation result is acceptable, authentication is performed and the electric lock 14 of the corresponding storage box 40 that has been authenticated is unlocked. As described above, it is controlled by a control unit (not shown).

  When the authentication unit 15 provided at one place as described above selects and authenticates the electric lock 14 corresponding to the authentication medium close to the electric lock 14 of the plurality of storage devices 1, The corresponding electric lock 14 is unlocked, and the locking device 6 is rotated by the drive unit 10, so that the locking unit 5 is rotated from the inside of the storage device body 3 to the outside of the storage device body 3 and the door 9. However, as described above, the adjustment means 19 prevents the door 9 from opening vigorously when it is automatically opened at the beginning of the opening by the rotation of the locking member 6, so In the collective storage device 2 in which the storage devices 1 are arranged, even if a third person who does not notice the opening of the door 9 is in front of the collective storage device 2, any door 9 among the plurality of doors 9 suddenly suddenly There is no risk of hitting the third party, especially in the case of a child whose head is near the door 9 Although there is a case in which the location, there is no risk that the door 9 hits the child's head even in such a case in the present invention.

  In the above embodiment, the storage box 40 is partitioned by the partition 43 to form a plurality of storage device main bodies 3, but separate storage devices 1 may be arranged.

It is sectional drawing which fractured | ruptured partially of the state which closed the door of one Embodiment of this invention, and latched the to-be-latched part to the latching | locking part. When opening a door same as the above, it is a partially broken cross-sectional view showing a state in which the moment when the locked rod hits the hook portion and jumps out to the outside is reduced. It is sectional drawing which fractured | ruptured partially and shows the state which the to-be-latched bar | burr exceeded the front-end | tip of a hook part at the time of opening a door same as the above. (A) is an explanatory view showing a state in which the moment when the locked bar hits the hooking portion and jumps out when the door is opened is reduced, and (b) It is explanatory drawing of the state which is going to exceed the front-end | tip of a hook part, (c) is explanatory drawing of the state which the to-be-latched bar has come out beyond the front-end | tip of a hook part. It is a perspective view of a lock mechanism housing same as the above. It is a perspective view which shows the collective storage apparatus which arranged the some storage apparatus side by side. (A) is a front view same as the above, (b) is a rear view same as the above. It is a perspective view which shows the state where the momentum which opened and opened a little door of one storage device was reduced in a storage box provided with a plurality of storage devices same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage apparatus 2 Collective storage apparatus 3 Storage apparatus main body 4 Opening part 5 Locking part 6 Locking tool 7 Pivoting part 8 Locked part 9 Door 10 Drive part 14 Electric lock 18 Second locking part 19 Adjustment means 20 Hook Part

Claims (1)

A storage device main body, a rotatable locking tool having a locking portion provided at an edge of the opening of the storage device main body, and a pivotally connected to the edge of the opening by a pivotal support. A storage device provided with a door that can be shielded and a locked portion that is provided on the door and is locked to the locking portion when the door is closed, wherein the locking device is engaged with an electric lock. A second locking portion is provided, and when the electric lock releases the locking of the second locking portion, the locking portion is rotated from the inside of the storage device body to the outside of the storage device body to open the door. as a drive unit for the provided adjustment means for preventing the opening often door momentum when the driver is applying a force to open the door is provided, said adjusting means engaging part housing unit by the drive unit constant from the door is fully closed when to release the locking while opening press door rotates about an axis in the housing unit outwardly from within the main body Door opening and closing mechanism locked portion in the stomach stage, characterized in that the locked portion after caught by the engaging portion provided at the tip of the locking portion is arranged to leave.

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