JPH094337A - Unlocking device for door - Google Patents

Abstract

PURPOSE: To automatically unlock a lock when a door frame is deformed by an earthquake. CONSTITUTION: An upper roller 22 and an upper interlocking bar 20 are provided at the upper section of a door 6, and the upper interlocking bar 20 is moved downward via the upper roller 22 when the space between the upper section of the door 6 and the inner face 2a of an upper frame 2 is reduced. When the lock bar of a lock 8 and the upper interlocking bar 20 provided on the door 6 are moved downward via a cam piece and a projection, the lock bar is moved in the unlocking direction, and the upper interlocking bar 20 is moved downward to unlock the lock 8 when a door frame is deformed by an earthquake.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door unlocking device for automatically unlocking a door when the door frame is deformed by an earthquake.

[0002]

2. Description of the Related Art As an entrance door, a door is attached to a door frame so that it can be opened and closed by a hinge, and a lock is provided on the door so that it can be locked and unlocked by picking from the inside of the door, and from the outside of the door using a key. It is known that it can be unlocked.

[0003]

With such an entrance door, a person who does not have a key in the locked state cannot open the door from the outside of the room, so that a sick person or an injured person in the room cannot be rescued during an earthquake. There is.

Therefore, an object of the present invention is to provide an unlocking device for a door which can solve the above-mentioned problems.

[0005]

A door unlocking device according to the present invention comprises: an upper frame forming a door frame when the door frame is deformed during an earthquake; a dust size of an upper part of the door; and a lower frame forming the door frame. The present invention was made by paying attention to the fact that the dust size with the lower part of the door becomes smaller, and the door releasing device of the present invention is, as the first invention,
A door frame in which the upper frame, the lower frame, the hanging base vertical frame, and the door end vertical frame are framed in a rectangular frame, the door that is openably and closably connected to the hanging base vertical frame of this door frame by a hinge, and the door end of this door. In the door consisting of a lock provided on the side, the door moves downward when the size of dust between the upper frame and the upper part of the door decreases, and moves upward when the size of dust between the upper interlocking rod and the lower frame and the lower part of the door decreases. At least one of the upper interlocking rod and the lower interlocking rod and the lock rod of the lock, and when at least one of the upper interlocking rod and the lower interlocking rod moves downward and upward, the lock rod moves. The door unlocking device is characterized in that the doors are linked so as to move in the unlocking direction. Further, as a second invention, a door frame in which an upper frame, a lower frame, a hanging base vertical frame, and a door front vertical frame are framed in a rectangular frame shape, and a hanging base vertical frame of this door frame is hingedly connected. A door and a door provided with a lock provided on the door end side of the door, in which the upper interlocking rod, the lower frame, and the lower part of the door that move downward when the dust size between the upper frame and the upper part of the door becomes smaller. At least one of the lower interlocking rods that move upward when the dust size becomes smaller is provided, and the lock main body of the lock is fitted to the door recess side of the door end vertical frame with the lock main body of the lock fitted to the door recess side of the door end vertical frame. It is rotatably provided in one position and a second position in which it is pulled out from the lock recess, and at least one of the upper interlocking rod and the lower interlocking rod and the lock main body of the lock is at least the upper interlocking rod and the lower interlocking rod. The lock body is linked so that when one moves downward and upward, the lock body rotates in the second posture. It is the solution lock device of door and butterflies.

[0006]

[Operation] According to the first invention, when the door frame is deformed due to an earthquake, at least one of the upper interlocking rod and the lower interlocking rod moves and the lock rod of the lock moves in the unlocking direction. In the event of an earthquake, the open door can be opened from the outside of the room to rescue the sick and injured. According to the second aspect of the present invention, when the door frame is deformed due to an earthquake, at least one of the upper interlocking rod and the lower interlocking rod moves and the lock main body rotates to the second posture to unlock. In the event of an earthquake, the open door can be opened from the outside of the room to rescue the sick and injured.

[0007]

[Example] As shown in FIG. 1, the door frame 1 is an upper frame 2,
The lower frame 3, the hanging vertical frame 4, and the door front vertical frame 5 are framed in a rectangular shape, and the hanging vertical frame 4 of the door frame 1 and the hanging side of the door 6 are openably and closably connected by a hinge 7. To form a door, and a lock 8 is provided on the door 6 side of the door 6.

As shown in FIGS. 2 and 3, the inner surfaces 2a, 3a, 4 of the upper frame 2, the lower frame 3, the hanging-up vertical frame 4, and the door-end vertical frame 5 are shown.
Door contact portions 10 are formed continuously on the inner side of a and 5a for four rounds, and a sealing material 11 is attached on each door contact portion 10 for four continuous circles toward the outside of the door to connect with the door 6. It is sealed.

As shown in FIGS. 2 and 3, the door 6 is provided with a U-shaped channel material 13 on four circumferences of a core material 12, and a surface plate 14 is attached to the core material 12 and the channel material 13, respectively. The door main body 15 is composed of an upper frame 16, a lower frame 17, a hanging frame 18, and a door end frame 19 which are attached to the four circumferences of the door body 15, and an upper interlocking rod 20 is provided on the door end side of the door 6. A lower interlocking rod 21 is provided so as to be vertically movable, and an upper portion of the upper interlocking rod 20 is in contact with the upper roller 22, and a lower portion of the lower interlocking rod 21 is in contact with the lower roller 23.

As shown in FIG. 2, the upper roller 22 is vertically movably provided in a roller housing 24 mounted over the upper frame 16 and the upper channel member 13, and is mounted on the inner surface 2a of the upper frame 2. It faces the liner 25.

As shown in FIG. 2, the lower roller 23 is vertically movably provided in a roller housing 24 attached to the lower frame 17 and the lower channel member 13, and is attached to the inner surface 3a of the lower frame 3. It faces the liner 26.

Each of the roller housings 24 is shown in FIGS.
As shown in FIG. 3, a U-shaped piece 30 is provided with a back plate 32 integrally provided with a pair of mounting pieces 31, and a holding piece 34 connected to the pair of mounting pieces 31 with screws 33. A cutout opening window 35 facing the roller is formed, and the roller is movably supported vertically along the U-shaped piece 30 so as not to project from the cutout opening window 35, and the mounting piece 31 and the pressing piece 34 are supported by the upper frame 16, The lower frame 17 is attached to the lower surface and the upper surface of the lower frame 17 with screws 33. The back plate 32 is a cutout opening 13 of the channel member 13.
It projects between the core material 12 and the channel material 13 from a.

As shown in FIG. 4, the lock 8 has a lock body 40.
A lock rod 41 and a notch 42 are provided so as to be retractable and retractable, and the lock rod 41 is retracted and retracted by a knob 43 provided on the indoor side surface so that the door 6 can be manually locked and unlocked from the indoor side, and the chamber shown in FIG. A key is inserted into the key hole 44 on the outside so that the key 6 is projected and retracted so that the door 6 can be locked and unlocked from the outside of the room using the key.

The notch 42 is adapted to be opened and closed by operating the handle 45 when the door 6 is unlocked by the handle 45 provided inside and outside the room.

As shown in FIGS. 5 and 6, the locking rod 41 and the notch 42 are provided with a first cam piece 46 and a second cam piece 47, respectively, and a cam surface 46a of each first cam piece 46. A pair of protrusions 48, 48 facing each other are provided on the upper interlocking rod 20, and when the upper interlocking rod 20 moves downward, each protrusion 48 is in contact with the cam surface 46a of each first cam piece 46 and protrudes. 41 and the notch 42 are pulled in so that they can be unlocked.

The lower interlocking rod 21 is provided with a pair of protrusions 49 facing the cam surfaces 47a of the second cam pieces 47,
When the lower interlocking rod 21 moves upward, the protrusions 49 are brought into contact with the cam surfaces 47a of the second cam pieces 47 and the locking rods 41 and the notches 42 projecting from the protrusions 49 are pulled in so that they can be unlocked.

Next, the operation will be described. Door frame 1 due to the earthquake
When the hanging base vertical frame 4 and the door end vertical frame 5 are obliquely deformed as shown by a phantom line in FIG. 1, the door 6 is also displaced and the dust size between the upper part of the door 6 on the door front side and the upper frame 2 is reduced. Get smaller.

As a result, the upper roller 22 comes into contact with the lower surface 25a of the upper liner 25 and pushes down the upper roller 22 in FIG. 2, so that the upper interlocking rod 20 moves downward and, as described above, the locking rod 41 and the notch 42. Pull in and unlock.

Therefore, since the door 6 is automatically unlocked at the time of an earthquake, a person outside the room can open the door 6 and rescue a person inside the room.

When the door frame 1 is further deformed from the above-mentioned state and the dust size becomes smaller, the upper roller 22 comes into contact with the lower surface 25a of the upper liner 25 with a strong force, and the upper liner 25
Since the lower surface 25a of the door is inclined so that the inside of the door is lower than the horizontal, a component force in the opening direction acts on the door 6 and
Automatically opens.

Therefore, it is possible to prevent the door frame 1 from being greatly deformed and the upper frame 2 and the upper portion of the door 6 on the door tip side from interfering with each other, thereby making it impossible to open the door 6.

When the door frame 1 is deformed in the direction opposite to the state shown by the phantom line in FIG. 1, the dust size between the lower frame 3 and the lower part of the door 6 on the door tip side becomes small, so that the lower roller 23 and the lower roller 23 The interlocking rod 21 unlocks in the same manner as described above, and the door 6 can be automatically opened when the door frame 1 is largely deformed.

Next, a second embodiment of the present invention will be described. Figure 7
As shown in FIG. 5, the lock 8 is provided in the casing 50 such that the lock main body 40 is vertically swingable between the downward posture and the upward posture with the support portion 51 as a boundary between the horizontal posture and the lock main body 40. The lock rod 41 and the latch 42, which are urged in a horizontal position at 52 and project when the lock body 40 is in the horizontal position, engage with the lock recess 5a of the door end vertical frame 5 to be locked.
In the downward position and the upward position, the protruding locking rod 41 and latch 42 are disengaged from the lock recess 5a of the vertical frame 5 and are unlocked.

A housing 54 of a pop-out mechanism 53 is attached to the upper side of the door 6 and the lower side of the door 6 and is slidably and swingably connected to the guide groove 55 of the lock body 40. The upper sliding rod 20 and the lower sliding rod 21 penetrate the housing 54, and the flanges 20a and 21a and the housing 5
A spacer 56 is provided between the spacer 5 and
6 has a ring shape due to a material that is plastically deformed and ruptured when an external force of a predetermined amount or more is applied, whereby the lock main body 40 is held in a horizontal posture by the upper interlocking rod 20 and the lower interlocking rod 21.

As shown in FIGS. 8 and 9, the push-out mechanism 53 is provided with a push-out arm 57 rotatably in a housing 54 by means of a vertical pin 58. The upper interlocking rod 2 is urged to rotate in a direction projecting from the opening 54a (projection direction) and is cut into a notch recess 60 formed in the projection arm 57.
0, the protrusion 61 provided on the lower interlocking rod 21 fits into the housing 54 so that the protrusion arm 57 resists the spring member 59.
The upper frame 2 and the lower frame 3 of the protruding arm 57 are opposed to the door stop portion 10 while being held in the posture of being housed inside.

Next, the operation will be described. Normally, the upper interlocking rod 2
0, the lower interlocking rod 21 is positioned by the spacer 56 so that the lock body 40 is in a horizontal posture, and the protrusions 61 of the upper interlocking rod 20 and the lower interlocking rod 21 are fitted into the notched recesses 60 of the protruding arm 57 and are pushed out. The arm 57 is held in the storage posture.

When the door frame 1 is deformed by an earthquake and the size of dust between the inner surface 2a of the upper frame 2 and the upper part of the door 6 on the door tip side becomes small, the flange 20a of the upper interlocking rod 20 and the inner surface 2a of the upper frame 2 are reduced.
Are contacted with each other and the spacer 56 is damaged, whereby the upper interlocking rod 20 is moved downward, whereby the lock body 40 is pivoted to the downward posture, and the lock rod 41 and the latch 42 are locked to the lock recessed portion of the vertical door frame 5. The door 6 is unlocked by separating from 5a.

When the door frame 1 is further deformed from this state and the upper sliding rod 20 is moved further downward, the protrusion 61 of the upper sliding rod 20 comes out from the notched concave portion 60 of the protruding arm 57, and the protruding arm 57 is removed. Since the spring member 59 rotates to the projecting posture, the protruding arm 57 contacts the door contact portion 10 of the upper frame 2 to open the door 6.

[0029]

According to the first aspect of the present invention, when the door frame is deformed by an earthquake, at least one of the upper interlocking rod and the lower interlocking rod moves and the lock rod of the lock moves in the unlocking direction. In the event of an earthquake, the open door can be opened from the outside of the room to rescue the sick and injured.

According to the second aspect of the present invention, when the door frame is deformed by an earthquake, at least one of the upper interlocking rod and the lower interlocking rod moves and the lock body of the lock pivots to the second position to unlock. Therefore, in the event of an earthquake, the locked door can be opened from the outside of the room to rescue the sick and injured.

According to the third aspect of the invention, when the door frame is deformed by an earthquake, the locking rod and the latch of the lock move in the unlocking direction, and a force in the opening direction acts on the door, so that the door is automatically moved in the event of an earthquake. You can open it up.

According to the fourth aspect of the invention, when the door frame is deformed by an earthquake, the main body of the lock pivots to the second posture, the lock rod and the latch are separated from the lock recess of the vertical frame of the door end, and the door is closed. Since the force in the opening direction acts, the door can be opened automatically in the event of an earthquake.

[Brief description of drawings]

FIG. 1 is a front view of a door showing a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of a door.

FIG. 3 is a cross-sectional view of the door.

FIG. 4 is a perspective view of an upper roller, an upper interlocking rod, and a lock.

FIG. 5 is a front view of a portion for moving the lock rod and the latch of the lock.

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a vertical sectional view showing a second embodiment of the present invention.

FIG. 8 is a lateral cross-sectional view of the protrusion mechanism.

FIG. 9 is a vertical sectional view of a door.

[Explanation of symbols]

1 ... Door frame, 2 ... Top frame, 3 ... Bottom frame, 4 ... Hanging vertical frame, 5 ...
Door end vertical frame, 6 ... Door, 7 ... Hinge, 8 ... Lock, 20 ... Upper interlocking rod, 21 ... Lower interlocking rod, 22 ... Upper roller, 23 ... Lower roller, 24 ... Roller housing, 25 ... Upper liner, 26
... lower liner, 40 ... lock body, 41 ... lock rod, 42 ... latch, 43 ... knob, 45 ... handle, 46 ... first cam piece,
47 ... Second cam piece, 48 ... Projection, 49 ... Projection, 50 ... Casing, 53 ... Projection mechanism, 57 ... Projection arm, 59 ... Spring member, 60 ... Notch recess, 61 ... Projection.

Claims (4)

[Claims] 1. A door frame in which an upper frame, a lower frame, a hanging base vertical frame, and a door-end vertical frame are framed in a rectangular frame shape, and a door which is hingedly connected to the hanging base vertical frame of the door frame. In the door made of a lock provided on the door end side of the door, the door has an upper interlocking rod that moves downward when the dust size between the upper frame and the upper part of the door becomes smaller, and a lower frame and the dust size of the lower part of the door. At least one of the lower interlocking rod that moves upward when it becomes smaller, at least one of the upper interlocking rod and the lower interlocking rod, and the lock rod of the lock, and at least one of the upper interlocking rod and the lower interlocking rod move downward and upward. An unlocking device for a door, characterized in that the locking rod is linked so as to move in the unlocking direction when moved. 2. A door frame in which an upper frame, a lower frame, a hanging base vertical frame, and a door end vertical frame are framed in a rectangular frame shape, and a door connected to the hanging base vertical frame of the door frame by a hinge so as to be openable and closable. In the door made of a lock provided on the door end side of the door, the door has an upper interlocking rod that moves downward when the dust size between the upper frame and the upper part of the door becomes smaller, and a lower frame and the dust size of the lower part of the door. At least one of the lower interlocking rods that move upward when becoming smaller is provided, and the first position in which the lock body of the lock is fitted to the door tip side of the door and the locked lock rod is fitted into the lock concave portion of the door tip vertical frame And at least one of the upper interlocking rod and the lower interlocking rod and the lock main body of the lock, and at least one of the upper interlocking rod and the lower interlocking rod is downward. , The lock body is linked so as to rotate to the second posture when moved upward. Door unlocking device. 3. A latch moves in an unlocking direction when at least one of the latch, the upper interlocking rod and the lower interlocking rod of the lock moves downward and when at least one of the upper interlocking rod and the lower interlocking rod moves downward and upward. A roller is provided on at least one of an upper portion and a lower portion of the door so as to be vertically movable in contact with at least one of the upper interlocking rod and the lower interlocking rod, and at least one of an upper frame inner surface and a lower frame inner surface of the door frame. On the one hand,
The door unlocking device according to claim 1, wherein a liner having a surface inclined with respect to the horizontal is attached so as to face the roller, and when the liner and the roller come into contact with each other with a strong force, a force in the opening direction acts on the door. apparatus. 4. When the lock body of the lock is rotated to the second posture, the latch is pulled out from the lock recess of the vertical frame of the door end, and at least one of the upper part and the lower part of the door is provided with the upper interlocking rod. The door unlocking device according to claim 2, further comprising a push-out mechanism that applies a force in an opening direction to the door when at least one of the lower interlocking rods moves downward and upward.