JP2955210B2 - Anti-seismic door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically unlocking a door when a door or a door frame is deformed by a certain amount due to an earthquake, and for applying an impact between the door and the door frame to the opening force of the door. Regarding anti-seismic doors that were converted to open automatically.

[0002]

2. Description of the Related Art Doors, such as steel or aluminum doors, which have been generally used in the past, mainly focus on crime prevention, heat insulation and soundproofing functions, and little consideration is given to earthquakes. However, if a concrete building such as a condominium or building is subjected to a large-scale earthquake, the edges of the door may cut into the door frame due to the deformation of the door or door frame, and the door may not be able to open and close. There was a problem in terms of disaster prevention, as residents were trapped inside the room and could not evacuate.

In recent years, in order to cope with such a problem, a door which can be easily pushed and opened by human power at the time of evacuation by absorbing the deformation of the door frame when it is deformed by an earthquake has been proposed in the real state. No. 54-44237, Japanese Utility Model Publication No. 60-2
No. 0,795.

More specifically, in the case of the door described in Japanese Utility Model Publication No. 54-44237, the width of the panel on the front surface of the door is made wider than the width of the panel on the rear surface, and the door is sharply projected outwardly from the four circumferential end faces of the door. And a tapered surface extending outward on the outer side of the inner peripheral surface of the door frame facing the acute-angled projecting portion, and a clearance between the acute-angled projecting portion and the tapered surface is set to be more outside (opening) than the indoor side. Side).

[0005]

However, in the case of the door described in the above-mentioned publications, although the deformation between the door and the door frame can be sufficiently absorbed by the earthquake, the locking of the lock lock can be prevented. Since the rods, that is, lock bolts such as dead bolts or latch bolts, still protrude, these lock bolts are caught by strikes or lock boxes on the door frame side, and depending on operating members such as a handle, a thumb turn or a key, locks may be generated. In some cases, the door cannot be pulled into the box, and as a result, the door cannot be opened.

Further, in the case of the door structure, a relatively large clearance is inevitably formed between the door and the door frame, and no processing is performed on the clearance, but a function that satisfies the door is satisfactory. It is necessary to provide sufficient soundproofing, heat insulation, water stoppage, and security.

Therefore, a main object of the present invention is to automatically unlock a door when a door or door frame is deformed by a certain amount or more due to an earthquake, and to apply an impact between the door and the door frame to the opening force of the door. To provide an anti-seismic door with functions such as automatically opening the door and automatically satisfying soundproofing, heat insulation, water stopping and security functions. .

[0008]

In order to solve the above-mentioned problems, the present invention relates to a door provided with a lock box which is fitted in a door frame so as to be openable and closable and has a lock member provided on an open side. The lock box is provided so as to be retractable in the unlocking direction by a lock box moving device, and at least one protruding piece is provided on an inner peripheral portion of the door frame so as to protrude toward the door, and the protruding part is protruded toward the door. An abutment member is provided to face the piece, and when the door frame or / and the door are deformed due to the occurrence of an earthquake, the lock box is moved backward by the operation of the lock box moving device due to the contact between the projection and the abutment member. It is characterized by automatically unlocking.

In the lock box moving device, the lock box is urged in the opening direction and is restrained to a normal position by a position restricting means, and the lock member is moved by contact between the protrusion and the lock member. Can be adopted as a restraint release command operation of the position restricting means, or an electric drive means driven by a contact between the projecting piece and the abutment member as an operation signal.

According to the present invention, according to the present invention, when an earthquake occurs and the door frame and / or the door are deformed,
The projecting piece provided on the door frame comes into contact with the abutment member provided on the door side. Then, the lock box moving device operates, and the door is automatically unlocked by retracting the lock box.

[0011] On the other hand, since the door has a tapered surface extending at least at the open end, the impact of the collision between the door and the door frame is dispersed by the tapered surface into a component force on the door open side. Therefore, the door is automatically opened in combination with the automatic unlocking of the door.

As described above, in the case of the anti-seismic door according to the present invention, even if an earthquake occurs, an escape route is ensured, so that the resident or the like pushes the half-open door by hand. In this way, it can be opened and evacuation can be performed quickly.

In the anti-seismic door, it is desirable to provide a cover member that covers the tapered surface with respect to the side on which the tapered surface is formed, and that comes into contact with a gasket mounted on the door frame side. By the cover material,
Not only does it look no different from a normal door in appearance, but it also has better soundproofing, heat insulation and water blocking properties.

Further, the abutment member is recessed inward by the cover material, and a rising piece is formed from the outside of the door chamber on the side where the tapered surface of the door is formed. By providing the overlap margin, it becomes impossible to insert a rod-shaped object to operate the abutment member, and the crime prevention property becomes sufficient.

[0015] Further, by positioning the outside end of the inner peripheral surface of the door frame on the tapered surface formed around the door, at least the inner peripheral portion of the door frame corresponding to the peripheral surface of the door is flat. It can be. This means that the anti-seismic door according to the present invention can be made by using the existing door frame as it is and replacing only the door.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. FIG. 1 is a front view of the door 1 as viewed from the outside,
FIG. 2 is a rear view as viewed from the indoor side. In FIG. 1, a door 1 is fitted in a frame of a door frame 2, and is supported by hinges 90, 90 so as to be freely opened and closed. As shown in FIG. 10, the lock box 35 provided in the open end of the door 1 is provided with one or two locking rods 37, which can be protruded and retracted from the front plate 36 of the lock box 35, that is, dead bolts. And / or an existing locking device provided with a locking member such as a latch bolt, wherein the locking rod 37 is protruded or retracted by a thumb turn, a key or an external operation member.

First, the door structure according to the present invention will be described in detail. As shown in FIGS. 3 and 5, the door 1 has an upper edge frame 10, a lower edge frame 11, a door frame 12, a door frame 15 and an intermediate frame. A front plate 16 is attached to an outdoor surface and a back plate 17 is attached to an indoor surface with respect to a skeleton frame composed of reinforcing frames 13 and 14, and the upper edge frame 10 and the door frame 15 are attached to the outdoor side (door open side). ) Are tapered surfaces 10a and 15a. In addition, the upper edge frame 10 and the door frame 15 cover and hide the tapered surfaces 10a and 15a so that the external appearance is as if it were a normal flat surface.
Tapered portion concealing covers 19 and 20 that come into contact with a gasket 18 that is disposed around the inner periphery of the door frame 2 described below.
Is provided.

On the other hand, the door frame 2 is a rectangular frame formed by an upper frame 2A, a lower frame 2B, left and right frames 2C and 2D,
It is fixedly installed with respect to the frame opening. In the case of this embodiment, the door-facing surfaces of the frames 2A to 2D are not tapered, but are normal flat surfaces, and the gasket 18 is formed on the step formed on the inner peripheral surface of the frame. Is provided around the periphery of the door 1 for soundproofing, heat insulation, and water stoppage.

Further, the tapered portion structure will be described in detail with reference to FIG. 4. In the side where the tapered surface 10a of the door 1 is formed, the surface plate 16 of the door 1 is extended to form a rising piece 16a. An allowance is provided between the frame 2A and the finding surface of the frame 2A. This makes it impossible to insert a rod-shaped member to operate the abutment members 61, 62..., Which will be described later, and the security is also sufficient. Also,
The formation of the rising pieces 16a also prevents intrusion of wind and rain.

As the concealed cover 19, a material such as a thin plate which is relatively easily deformed is selected and used. The joint between the upper edge frame 10 and the back plate 17 is shown in FIG.
As shown in FIG. 5, insertion pieces 19a, 19a,... Are formed at appropriate intervals in the L-shaped bent portion at the rear end of the tapered portion concealing cover 19, while the insertion pieces 19
a, 19a... corresponding to the notches 10c, 10c... are formed, and the insertion pieces 19a and the notches 10c are joined so as to mesh with each other.
To cover. Further, the outside end A of the inner peripheral portion of the door frame 2 is connected to the tapered surface 1 formed around the door 1.
0a, so that the sliding at the most apt to be caught is smooth.

When the door 1 constructed as described above is deformed by the earthquake and collides with the door 1 and the door frame 2, the tapered surface 10 a of the door 1 is guided to the contact portion of the door frame 2, and Is pushed out of the room and opened. In this case, the insertion piece 19c of the tapered portion concealing cover 19 comes off and is deformed, for example, as shown by a dashed line, so that opening of the door 1 is not hindered. In addition, the tapered portion concealing cover 19
Is easily detachable, and can be easily replaced if it is deformed by an earthquake.

Next, the lock release mechanism at the time of an earthquake will be described in detail with reference to FIGS. 2 and 9 to 11. As shown in the overall schematic diagram of FIG. 2, at a predetermined position of the door frame 2, in the illustrated example, upper and lower portions of the open side, and 3 near the open side of the upper side.
The projecting pieces 5, 5,...
3 fixed.

On the other hand, inside the door 1, a lock box 35 is provided so as to be retractable with respect to the base frame 30 via guide means.
Position restricting means 4 for restraining the lock box 35 at the normal position against the urging force acting on the lock box 35 in the unlocking direction.
, The protruding pieces 5, 5... Provided on the door frame 2 when an earthquake occurs.
Abutment members (first vertical connecting rod 61, first horizontal connecting rod 6
2) interlocking mechanisms 6 and 7 for converting the pressing force given by the collision with the protruding piece 5 into a driving force for moving a linking operation rod 8 to be described later; A lock box moving device S including a linking operation rod 8 for linking the position control means 6 and 7 and releasing the restraint by the position restricting means 4 is provided therein.

As shown in FIG. 10, the lock box 35 has a box-shaped movable frame 31 mounted in a nested manner on a box-shaped base frame 30 fixed in the door 1 by mounting screws 91. It is fixed to the front surface of the movable frame 31 by mounting screws 92.

A suitable guide means is provided between the base frame 30 and the movable frame 31 provided so as to be able to retreat in the horizontal direction with respect to the base frame 30. The illustrated guide means includes a guide rod 34 fixed to the base frame 30 and receiving pieces 22 fixed to the front and rear of the movable frame 31.

The lock box 35 is indirectly biased rearward with respect to the base frame 30 via a movable frame 31 and an arbitrary number of retracting springs 33 (guide means). In normal times, the position restricting means 4 is restrained at a forward position against the urging force of the retracting spring 33.

In the illustrated example, the retracting spring 33 is a compression spring, and is mounted between the bottom plate of the movable frame 31 and the front plate of the base frame 30. Reference numeral 32 denotes a mounting rod for mounting the retraction compression spring 33.
Are fixed to the front plate and the bottom plate, respectively, and the intermediate portion is movably penetrated through the bottom plate of the movable frame 31.

Accordingly, when an earthquake occurs and the interlocking mechanism 6 is actuated by being pushed by the protruding piece 5 with the deformation of the door frame 2, the restraint of the lock box 35 to the forward position by the position restricting means 4 is released. Thus, the movable frame 31 is retracted together with the movable frame 31 by the urging force of the retracting spring 33.

Since the lock box 35 is movable (retractable) in the horizontal direction, as shown in FIG. Or escape slots 16a to 16c for allowing the thumb-turn shaft or the like to retreat. Therefore, in order to hide these long holes 16a to 16c, a decorative plate 21 fixed to the handle shaft and the lock shaft is provided.

On the other hand, as shown in FIGS. 10 and 11, the position restricting means 4 includes a stop rod 41 having a locking portion 42 fixed rearward to the rear of the movable frame 31 which can be retracted together with the lock box 35. A pair of holding pieces pivotally mounted on a box-shaped support frame 43 fixed to the base frame 30 with a horizontal axis 48 in order to engage the pair of tips at normal times with the locking portions 42 of the stop rod 41. The holding members 44 include a torsion spring for urging the holding pieces 44 in a direction to close the distal ends thereof, and other closing springs 45.

An engaging portion 42 of the stop rod 41, which is restrained in a normal state of being held by the tips of the holding pieces 44, 44
Can be arbitrarily formed with a small diameter portion, an annular groove or a flange portion.

The distal ends of the pair of holding pieces 44, 44 can be symmetrically pivoted even if only one of their base ends is pushed by the connecting rod or the link operating rod 8. 46
And the long hole 47.

Next, as for the interlocking mechanisms 6 and 7, only the representative 6 side will be described in detail with reference to FIG. Linkage mechanism 6
Are the projecting pieces 5 of the upper frame 2A and the vertical frame 2D of the door frame 2.
, The force is converted into the axial movement of the linking operation rod 8 so that the lock of the lock box 35 by the position restricting means 4 can be released. Specifically, a first vertical connecting rod 61 which is provided in the door 1 so as to be movable in the up-down direction and which is activated when an earthquake occurs by the protruding piece 5 provided on the upper frame 2A of the door frame 2; A first horizontal connecting rod 62 which is provided movably in the horizontal direction and is activated by an protrusion 5 provided on the vertical frame 2D of the door frame 2 when an earthquake occurs;
Operated by the vertical connecting rod 61 or the first horizontal connecting rod 62,
The cam 63 is provided so as to be rotatable about a horizontal axis 63a, and the swing lever 64 is operated clockwise about the horizontal axis 64a by the rotation of the cam 63. The swing lever 64 and the position regulating means 4 are linked by a link operating rod 8.

In FIG. 9, reference numeral 66 denotes a guide frame fixed to the door 1 with a set screw 94, 67 denotes a positioning spring mounted in the guide frame to position the first vertical connecting rod 61 in a normal state, 68 Is a guide frame fixed to the door 1 via a mounting box 71 described later, 69 is a positioning spring mounted in the guide frame 68 to position the first horizontal connecting rod 62 in a normal state, 71
Is a mounting box in which some members of the interlocking mechanism 6 are mounted, 72 is an intermediate slider provided to ensure the link between the first vertical link 61 and the cam 63, and 73 is a second horizontal link 62 And cam 6
An intermediate slider 74 provided for ensuring the linkage with the cam 3, a torsion spring 74 provided for positioning the cam 63 at a normal position, and a coupling slider 75 for the swing lever 64. In order to simplify the mounting of the
And 76, a positioning spring mounted around the linking operation rod 8 for localizing the position of the swing lever 64 in a normal state.

The intermediate sliders 72 and 73 are attached to the mounting box 7.
The guide members (not shown) in FIG. 1 are swingably guided in the vertical and horizontal directions, respectively, and are engaged with the cams 63 by pins and slots.

The above-described interlocking mechanism 6 is not always essential. If the direction of pressing by the protruding piece 5 and the direction of movement of the linkage operating rod 8 match, it can be omitted. That is, when the predetermined conditions are met and the interlocking mechanisms 6 and 7 can be eliminated, the outer end is opposed to the protruding piece 5 provided on the upper frame 2A of the door frame 2, and the inner end is positioned by the position regulating means 4. , And only one linking operation rod 8 for linking the two can be used. In this case, the linking operation rod serves as the “abutment member” according to the present invention. It is needless to say that a notch for escape is provided at a position corresponding to each projection 5 of the door frame 2 on the door 1.

Although the above example is an example in which the lock box moving device S is configured as a mechanical structure, it may be configured as an electrical operation or a combination thereof. For example, as shown in FIG. 13, a limit switch 23 may be provided at a position corresponding to each protruding piece 5, and the holding piece 44 may be pushed by the solenoid 22 arranged in the position regulating means 4. Further, as shown in FIG. 14, the lock box 35 or the movable frame 31 can be directly moved by the solenoid 24.

In the anti-seismic door according to the present invention, the amount of deformation of the door frame caused by the earthquake is determined by the interlayer displacement angle defined by the Building Standards Law, that is, the horizontal displacement of the horizontal frame of the door frame when the door is viewed from the front. When the amount is expressed by a value obtained by dividing the length by the length of the vertical frame (radian), it is a matter of course that the radian at which the interlayer displacement angle starts to operate varies depending on the setting of the dimensions of each component. If the performance example of the anti-seismic door according to the present invention is shown, when the gap between the door and the door frame, so-called dust, is set to a normal value, the door can be operated at an interlayer displacement angle of 1/225 radians. , At interlayer displacement angles up to 1/150 radians,
It is possible to restore the lock box that was activated by the earthquake.

[0039]

As explained in detail above, according to the present invention,
When the door frame or door is deformed due to the earthquake, the lock box retracts and the lock is released, and the impact between the door and the door frame is converted to the opening force of the door, and the door is automatically opened. Therefore, a passage for escape is ensured, and residents and the like can be evacuated quickly. At the same time, in the case of this door structure, soundproofing,
Insulation, water stoppage and crime prevention functions will be fully satisfied.

[Brief description of the drawings]

FIG. 1 is a front view of a door viewed from an outdoor side.

FIG. 2 is a rear view of the door as viewed from the indoor side.

FIG. 3 is a view taken along line III-III in FIG. 1;

FIG. 4 is an enlarged view of a main part of FIG. 3;

FIG. 5 is a view taken along line VV of FIG. 1;

FIG. 6 is a view taken along line VI-VI of FIG. 1;

FIG. 7 is a view taken along line VII-VII of FIG. 1;

FIG. 8 is an assembled perspective view of the tapered surface concealment cover and the upper edge frame.

FIG. 9 is a detailed structural view of an interlocking mechanism 6;

FIG. 10 is a detailed structural view of the lock box 35 and the position regulating means 4;

FIG. 11 is a perspective view of the position regulating means 4.

FIG. 12 is a view showing an arrangement state of a decorative board.

FIG. 13 is a schematic view of another example of a lock box moving device.

FIG. 14 is a schematic view of another example of a lock box moving device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Door, 2 ... Door frame, 3 ... Locking device, 4 ... Position regulating means,
5 Projecting piece, 6/7 Interlocking mechanism, 8 Linking operating rod, 10
Upper edge frame, 11 Lower edge frame, 12 Door frame, 13/14 Intermediate reinforcement frame, 16 Surface plate, 1
7 ... Back plate, 18 ... Gasket, 19 ... Tapered part cover, 30 ... Base frame, 31 ... Movable frame, 32 ... Mounting rod, 33
... Retraction spring, 34 guide rod, 35 lock box, 36 front plate, 37 locking rod, 41 stop rod, 42 locking part,
44: clamping piece, 61: first vertical connecting rod, 62: first horizontal connecting rod,
63: cam, 64: swing lever

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E06B 5/00 E05B 5/08

Claims (7)

(57) [Claims] 1. A door provided with a lock box which is openably and closably fitted into a door frame and has a lock member provided on an open side, wherein the lock box can be retracted in an unlocking direction by a lock box moving device. On the other hand, at least one protruding piece protrudes toward the door side on the inner peripheral portion of the door frame, and an abutment member is provided on the door side so as to face the protruding piece. When the frame or / and the door are deformed,
An anti-seismic door, wherein the lock box is retracted and automatically unlocked by actuation of the lock box moving device by contact between the projecting piece and the abutment member. 2. The lock box moving device restrains the lock box to a normal position by position restricting means in a state where the lock box is urged in an opening direction, and the lock member is brought into contact with the protruding piece by the lock member. The anti-seismic door according to claim 1, wherein the mechanism is a mechanism for transmitting the movement as a restraint release command operation of the position restricting means. 3. The anti-seismic door according to claim 1, wherein said lock box moving device is an electric drive device driven by a contact between said projecting piece and the abutment member as an operation signal. 4. The anti-seismic door according to claim 1, wherein at least an open side of the door is formed with a tapered surface extending toward the outside of the room. 5. The anti-seismic door according to claim 4, wherein a cover material is provided to cover the tapered surface with respect to the side on which the tapered surface is formed and to contact a gasket mounted on the door frame side. 6. A door frame, wherein at least an inner peripheral surface portion of the door frame corresponding to the peripheral surface of the door is a flat surface, and an outdoor end of the inner peripheral surface of the door frame is located on the tapered surface. The anti-seismic door described in 5. 7. The anti-seismic door according to claim 4, wherein a rising piece is formed from an outer side of the door chamber on a side of the door where the tapered surface is formed, and an overlapping margin is provided between the door and a finding surface of the door frame.