JP2009144320A - Pivot hinge with emergency escape mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pivot hinge with emergency escape mechanism capable of opening a suspension root side of a door by separating a frame side upper pivot from a door side upper pivot and separating a frame side lower pivot from a door side lower pivot by operation from an indoor side when the door cannot be opened after the occurrence of earthquake. <P>SOLUTION: This pivot hinge has such mechanism that a groove and a shaft holding fitting allowing a shaft axis to be inserted from the horizontal direction are provided in the frame side pivot, the shaft axis is provided in the door side pivot, the shaft axis in the groove is covered with the shaft holding fitting from the outside to hold the door in a frame body, an end part of the shaft holding fitting or an interlocking member connected with the shaft holding fitting is extended onto an indoor side to connect its tip with an operation member, and the shaft holding fitting is moved by operating the operation member from the indoor side to release the covering condition on the shaft axis. In a released condition of the shaft holding fitting, the suspension root side of the door is pushed out to open the door on the suspension root side in order to enable emergency escape. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pivot hinge having a mechanism that allows a door to be opened on a suspending side when the door is tilted by an earthquake and the door tip portion of the door has bitten into a frame and cannot be opened.

  Conventionally, hinges and pivot hinges are mainly used as door opening / closing brackets for entrance doors, and in the case of external opening, these axial centers are taken out from the door surface to the outside of the door in order to open the door 180 degrees. In most cases, they are arranged in a state where they are placed. Also, the installation order for attaching the door to the frame is to hang from the outside with the door wide open, and to prevent the hanging part from being removed when the door is closed to ensure security from the outside. There are many things.

  However, when a strong earthquake occurs, the frame 33 is crushed and displaced into a parallelogram as shown in FIG. 14, and the door corners of the door 32 are in a state where they are in close contact with the top and bottom of the frame 33. End up. Then, even after the earthquake has converged, the door 32 cannot be opened as long as it is strongly pressed from the room side, and the person inside is completely trapped in the room. In particular, steel doors and aluminum type doors that are most popular in recent years have high rigidity, and the tendency is remarkable. There are also many high-rise condominiums in the form of buildings. In these cases, unlike one-story houses, there is no doorway and it is impossible to escape from the windows, so there is a problem of emergency escape during and after an earthquake. It is becoming important.

  Therefore, the door itself has a structure in which the door tip and the frame do not come into contact with each other even if the door is slightly tilted due to an earthquake due to a large clearance in the vertical and horizontal directions between the door tip position and the frame. Can be considered. At the same time, however, the problem of airtightness and design are also important, so that extreme gaps are difficult to tolerate, and this method will be more effective depending on the degree of shaking of the earthquake, helping to increase the size of the door itself. Therefore, it is difficult to think that it is very effective. A number of such constructions in which a gap is provided between the door and the frame have been reported in Japanese Patent Laid-Open Nos. 9-13830 and 9-279954.

  In addition, when the door upper and lower surfaces come into contact with the frame during an earthquake, it escapes while moving up and down before the door tip bites into the frame itself, or an elastic member is inserted between the door and the frame. In many cases, the members are separately crushed by the pressure of the door, which is reported in JP-A-9-13829 and JP-A-9-189174. Further, there is a configuration in which a small door is built inside the door, and even if the outer door cannot be opened due to an earthquake, the inner door is opened to escape, and JP-A-9-53371 and JP-A-2004. -68254. However, both of them become separate standards for earthquake-resistant door frames, and it is thought that they will be expensive in terms of cost including construction.

  Also, the door is equipped with various locking devices for crime prevention on the door front side. When the door is closed, a dead bolt that is normally locked is inserted into the strike, and the door guard is also locked. Many. Therefore, in the configuration in which the door itself has the earthquake resistance, the door tip surface of the door moves up and down greatly with respect to the vertical frame at the time of the earthquake, so that these lock devices cannot be unlocked. As a result, all locking devices need to be made earthquake resistant at the same time.

  Another method is to equip the hanging brackets such as hinges with anti-seismic performance. There is an earthquake-resistant hinge, and a spring is inserted into the upper part of the shaft center inside the hinge tube, and the door is attached together with the other blade. There is a configuration in which it is held in a substantially floating state by the force of a spring. In this configuration, when the frame is displaced in the event of an earthquake, the door can be moved up and down by pushing down the spring so that the door tip does not bite into the frame to obtain earthquake resistance. The small displacement range of the frame that can be left remains as a problem. In addition, the hinge itself is long, and there are many incomplete parts such as the spring strength that needs to be closely matched to the weight of the door. Improvements to them have been reported in JP-A-9-209642 and JP-A-2003-64933. Yes.

  Furthermore, Japanese Patent Application Laid-Open No. 9-4311 reports an earthquake-resistant hinge for a mechanism in which a blade on the door side of a two-pipe hinge is greatly bent to continue to the interior surface of the door and is fixed with a screw at a position where it can be operated from the room. ing. In this structure, the position where the hinge is fixed is arranged at a place where it can be operated from inside the room, and the hinge is disassembled by removing the screw at the time of emergency escape to open the hanging side of the door. However, it is assumed that the hinges are completely visible from the room, which is not good in design, requires a tool such as a screwdriver, and the operation of removing a plurality of screws is not suitable as an emergency response means.

  Here, in the most common hinge as a door hanging bracket, a configuration in which the tube portion of the other blade is inserted into the axis of one blade by the vertical lifting operation with the door opened approximately 90 degrees. In the closed state, the door hits the upper frame and cannot be lifted, so it cannot be removed. In addition, some pivot hinges are hung by the same vertical movement, but generally, a horizontal U-shaped groove is provided on the frame side upper pivot so as to face the outside as disclosed in JP-A-8-303098. In many cases, the door is held by being fitted with the shaft center of the upper pivot on the door side in the groove and screwed with a pressing plate from the outside of the room. In this horizontal fitting operation, the structure is intended to simplify the suspension operation, and at the same time the shaft center is fitted in the groove, the shaft center is temporarily held so that it does not fall off, and then fixed with screws. -203261 and the like.

  Further, there is Japanese Patent Laid-Open No. 10-102877 by the present inventor for the purpose of simplifying the suspension work, and the upper shaft center is fitted from the horizontal direction into the groove of the upper pivot on the frame side, and at the same time the shaft is completely held. In this configuration, no additional fixing means such as a screw is required after the suspension. Similarly, another configuration that can be completely held at the same time that the shaft center is fitted in the groove of the upper pivot on the frame side is also reported in Japanese Patent Laid-Open No. 2000-204830.

  In Japanese Patent Laid-Open No. 10-102877, a boomerang-shaped shaft holding bracket is arranged so as to be able to rotate in the horizontal direction with respect to the frame-side upper pivot. When inserted, one side of the boom retainer shape of the shaft holding bracket is pushed by the shaft center and rotates, and the other side of the boomerang shape pushes the shaft center at a predetermined position in the groove, and at the same time automatically reverses the direction. Means to be fixed so as not to return is implemented. In addition, a shaft center releasing means is provided so that the shaft holding bracket can be rotated again in the reverse direction by operating the releasing member.

  Japanese Patent Application Laid-Open No. 2000-204830 has a shaft holding bracket that can move in a direction substantially perpendicular to the groove of the door-side upper pivot, and the shaft center of the door-side upper pivot is placed in a state where the shaft holding bracket does not cover the groove. It is configured to be inserted in a predetermined position in the groove and slide the shaft holding bracket horizontally to cover the shaft center from the outside, and the locus is set so that the shaft holding bracket presses the shaft center immediately before completely covering Therefore, the shaft center is held without wobbling without a separate fixing means. In this configuration, the release means can be implemented by sliding the shaft holding bracket in the reverse direction. In addition, the axis of the lower pivot in these configurations does not use horizontal insertion, and is an operation to insert in the vertical direction. As a whole lifting procedure, the door is placed on the axis of the frame side lower pivot. After lifting, the door-side lower pivot is fitted in by dropping, and then the upper shaft center is fitted into the groove from the horizontal direction to hold the door.

Here, in the situation where the front end of the door bites into the frame body due to the earthquake and the door cannot be opened, the hinge side where the hinge or pivot hinge as reported in JP-A-9-4311 is attached is used. In the idea of opening, it is difficult to assume a hinge structure that pulls the shaft center up and down in the vertical direction, and the shaft center is inserted into the horizontal groove of the pivot on the frame side at the pivot hinge. The configuration that is held by the holding plate only needs to be able to remove the holding plate by some operation from the indoor side, and furthermore, it can be held without shaking by only the movement of the shaft holding bracket. It is considered that a configuration that does not use a separate fixing means such as a screw is most suitable for separating the door and the frame body from the indoor side on the hanging side.
JP-A-9-13830 JP-A-9-279954 JP-A-9-13829 JP-A-9-189174 JP-A-9-53371 JP-A-9-209642 JP 2003-64933 A JP 2004-68254 A JP-A-9-4311 JP-A-10-102877 JP 2000-204830

  The present invention was made to solve the above problems, the door itself does not need a special structure for earthquake resistance, and the lock device such as a lock does not use a thing having earthquake resistance performance, With a structure that uses a pivot hinge for the hanging bracket, when the door cannot be opened after an earthquake, the frame side upper pivot and the door side upper pivot can be easily operated from the indoor side, and the frame side lower pivot and door. An object of the present invention is to provide a pivot hinge having an emergency escape mechanism that can open the suspending side of the door by separating the lower pivot.

  In the present invention, the following technical means are provided to solve the above problems. First, an upper pivot hinge consisting of a door-side upper pivot attached to the upper part of the door and a frame-side upper pivot attached to the upper part of the frame body is provided, and a vertical axis serving as a rotation axis of the door is attached to one of them. On the other hand, a groove that is substantially U-shaped and into which the shaft center can be inserted from the horizontal direction is provided. Therefore, it is preferable to form an opening in the direction of the groove toward the outdoor side. A shaft holding fitting for holding the shaft center at a predetermined position in the groove without wobbling is provided on the pivot having the groove. In addition, a lower pivot hinge consisting of a door-side lower pivot attached to the lower part of the door and a frame-side lower pivot attached to the lower part of the frame body is provided, and a vertical axis serving as the rotation axis of the door is attached to one of them. On the other hand, a substantially U-shaped groove into which the shaft center can be inserted from the horizontal direction is provided. Also, like the upper pivot hinge, an opening is formed in the groove direction toward the outdoor side, and a shaft holding bracket for holding the shaft center in a predetermined position in the groove without pivoting to the pivot having the groove. Is provided.

  And after inserting an axial center in a groove | channel, a shaft holding | maintenance metal fitting is moved and it covers on an axial center, and a door is hold | maintained. Therefore, in order to prevent the shaft center from coming out of the groove when the door is suspended, the shaft holding metal fitting is placed outside the shaft center of the pivot groove so that the shaft center does not come off in any direction. is required. Here, what is important as an incidental condition is a mechanism in which the moving operation of holding the shaft holding bracket on the shaft center and holding it at a predetermined position in the groove is relatively simple, and further, such as screwing on the outdoor side. It is mentioned that a separate complete fixing means is not required. For example, in an ordinary pivot hinge, etc., in order to hold the shaft center freely without wobbling at a predetermined position in the groove, the shaft holding bracket is attached to the shaft holding metal fitting with a certain clearance between the shaft center and the groove inner diameter. In many cases, the entrance of the groove is fixed and held with a screw or the like from the outdoor side. However, in such a configuration, it is assumed that a complicated operation for returning the fixed screw is difficult from the indoor side, and the configuration is not suitable in an emergency. Therefore, it is preferable to use a mechanism that can eliminate the wobbling of the shaft center to the extent that it can be used as it is by simply moving the shaft holding bracket to the outside of the groove and closing the lid.

In other words, the movement mechanism when placing the shaft holding bracket on the shaft center at a predetermined position in the groove is important.
As an example of the means, the shaft holding bracket is assembled so as to be slidable in a direction substantially perpendicular to the groove, and after inserting the shaft center into the groove, the shaft holding bracket is slid to move the shaft center from the outside of the groove. It is preferable to have a configuration that can be released by sliding the shaft holding bracket in the reverse direction when it is moved so as to be covered. Alternatively, in another example, the shaft holding bracket rotates on the horizontal plane of the pivot so as to embrace the shaft center, and at the same time has a means for preventing the shaft holding bracket from rotating in the returning direction, and is operated separately. Therefore, it may be possible to have a release means for releasing the blocking.

  Then, the end of the shaft holding fitting located outside the door is extended to a position where the hand can be reached from the inside even when the door is closed, and the operation member is connected to the tip. Alternatively, the interlocking member may be connected to the shaft holding bracket, and the operation member may be connected by extending the end of the interlocking member to the indoor side. At this time, airtight members such as a door-to-door portion of the frame body and gaskets are arranged in the middle, but these members are partially drilled and penetrated, or the extension portion of the shaft holding bracket is bent. It is advisable to avoid the members and bring them to the indoor side. Then, even when the door is closed, the shaft holding bracket can be moved from the indoor side by the operation of moving the operation member. In other words, if it is a configuration that does not require an additional operation such as screwing in the outdoor position in the holding state as described above, the shaft can be held by moving the operating member from the room even if the door cannot be opened after the earthquake. The bracket can be moved in such a direction that it is not exposed to the shaft center, and if the door suspension side is pushed in that state, the shaft center will come out of the groove, and the door suspension side will be opened and emergency escape will occur. Is possible.

  Next, on the security surface, if the shaft holding bracket is movable as described above, if the shaft holding bracket is forcibly moved from the outside of the room in the direction to release it, the suspension side of the door can be opened. It remains as a defect. Therefore, it is preferable to provide a lock member around the operation member on the indoor side so that the shaft holding bracket can be released by moving the operation member only when the lock member is removed. This locking mechanism can be considered in various ways, but is not particularly limited, and any mechanism may be employed as long as it can prevent the movement of the shaft holding metal from the outdoor side. For example, an operation member is incorporated in the operation case together with the lock member, and is arranged near the indoor suspension base side of the door so that the operation member can be moved laterally in the operation case. Normally, the lock member is used for operation. Set so that the operation member cannot be moved if it is placed so that it fits in the movement space of the case without any gaps, and if the lock member is removed, there will be space for movement of the operation member. A simple one that can be released is sufficient.

  Naturally, it is easier to escape when the upper and lower pivot hinges are provided with emergency escape mechanisms, so it is necessary to release the upper and lower lock mechanisms at the same time when exiting. After releasing, the work to push out the door suspension side must be carried out. Therefore, for example, in a configuration in which the operating member is slid in the left-right direction and the shaft holding bracket is released as described above, a mechanism for temporarily stopping and holding the operating member at the release position may be provided. Then, when the upper and lower lock mechanisms are released, the upper and lower shaft centers are in a state that can be detached, and you can push out the door suspension side with both hands as it is, and further hit the body and push the door Can also be escaped more reliably.

  Ordinary pivot hinges usually have a decorative cover on each pivot at the final stage of construction, and there are various methods for fixing the decorative cover to the pivot. The main ones are a method of fastening a metal cover such as stainless steel with a screw, and a method in which a decorative cover made of resin is fitted by the elasticity of the decorative cover itself. However, if the metallic decorative cover is completely fixed, the shaft center is caught on the decorative cover when the shaft center is removed after the shaft holding bracket is released, which is not good. Therefore, the above-described pivot hinge with an emergency escape mechanism preferably uses a resin decorative cover and is configured to be detached or to be detached when a strong force of a certain level or more is applied. If a metal decorative cover is used, it is preferable to provide a means such that the mounting screw is resinous and the resin screw is broken and removed when a certain level of force is applied.

  The pivot hinge shaft center is rotatably mounted at a predetermined position in the groove, and the shaft retainer is held so that the shaft center is not pulled out. At the same time, the end of the shaft retainer bracket is brought to the indoor position and operated from the room. In this state, the door retainer is pressed against the frame after the earthquake, and the door cannot be opened. In this case, it is possible to release the door by lifting the shaft holding fitting of the pivot hinge and separating the pivot so that the door can be lifted and the emergency escape can be performed.

  In addition, by using a lock mechanism, safety in terms of crime prevention can be secured, and both the upper and lower pivot hinges are equipped with an emergency escape mechanism and can be held in a released state, so that it can be pushed with both hands when escaped The suspension side can be largely opened by means such as hitting the body and pushing the suspension side, so that even an elderly person or a disabled person can easily escape.

  Conventional earthquake-resistant hinges with built-in springs and methods of improving the earthquake resistance by providing a certain gap between the door and the frame have limited earthquake resistance, and the interlayer displacement due to the earthquake exceeds a certain level. The problem remains that is not effective. However, in the pivot hinge with the emergency escape mechanism of the present invention, there is a low possibility that the suspending side of the door comes into contact with the frame body except that the door itself collapses in a buckled state, and the magnitude of the earthquake and the degree of displacement Regardless of this, there is a high possibility that emergency escape is possible and the effect is great.

  By using the pivot hinge with an emergency escape mechanism of the present invention, it is not necessary to incorporate earthquake resistance performance into the door itself, and it is standard only by adding a few holes and notches for connecting the shaft holding bracket to the upper and lower frame bodies. The door can be equipped. Therefore, accessory parts such as a handle lock and a guard lock are also very advantageous in terms of cost without using a special product having seismic performance. Also, the configuration of the pivot hinge itself is different from the conventional one in that the shape of the shaft holding bracket is changed and the operation member is attached. Can be handled at a very low cost.

  Embodiments of a pivot hinge with an emergency escape mechanism according to the present invention will be described below with reference to the drawings. 1 to 11 show a first embodiment of the present invention, and FIG. 1 is an overall perspective view seen from the outdoor side in a state where the pivot hinge with an emergency escape mechanism of the present invention is attached to a door. 2 is a longitudinal sectional view, and FIG. 3 is a perspective view of the lower part of the suspension side position viewed from the indoor side. As shown in FIG. 1, the pivot hinge of the present invention also comprises an upper pivot hinge with a frame-side upper pivot 1 and a door-side upper pivot 2 as in the conventional product, and a frame-side lower pivot 3 and a door-side lower pivot 4. The lower pivot hinge is configured, the upper and lower frame side pivots are attached to the frame body, and the upper and lower door side pivots are attached to the upper and lower sides of the door 32. Further, the shaft center 5 is mounted in advance on one of the door side pivot frame side pivot, and a substantially U-shaped or V-shaped groove 6 is formed on the other side. The arrangement of the groove 6 and the shaft center 5 is not particularly limited, but in the first embodiment, the groove 6 is formed in the frame side upper pivot 1 and the frame side lower pivot 3. As a hanging procedure, the shaft center 5 arranged above and below the door 32 is inserted into the groove 6 of the upper and lower frame side pivots, the door 32 is fitted into the frame 33, and then the shaft holding fitting 7 is inserted into the groove of the shaft 5. 6 and hold the door 32 in a suspended state.

  Here, the pivot hinge with an emergency escape mechanism according to the present invention requires a configuration that does not use a relatively complicated fixing method such as screwing on the outdoor side of the pivot hinge after the hanging operation. Therefore, in the first embodiment, the shaft holding fitting 7 that is movable in a substantially right angle direction with respect to the groove 6 of the frame side upper pivot 1 is provided, and the shaft holding fitting 7 before the door 32 is suspended is not covered with the groove 6. From the state, when the shaft center 5 of the door-side upper pivot 2 is inserted into a predetermined position of the groove 6 and the shaft holding bracket 7 is slid in the lateral direction so as to cover the shaft center 5 from the outside, the shaft center 5 remains as it is without wobbling. Will be described in the emergency escape mechanism when a structure capable of holding the inside of the groove 6 is used.

  FIG. 4 is a top plan view of the frame-side upper pivot 1. The frame-side upper plate 8 shown in FIG. 5, the shaft holding member 7 shown in FIG. 6, the interlocking member 9 shown in FIG. 7, and the escape shown in FIG. The operation device 10 is configured. As shown in FIG. 5, the frame-side upper plate 8 is provided with a substantially U-shaped groove 6 with an opening portion facing the outdoor side, and a guide slot provided with a slightly inclined portion and a straight portion at a lateral position thereof. 11 and a rotating shaft 12 for an interlocking member is provided. As shown in FIG. 4, the groove 6 is provided in a direction substantially perpendicular to the door surface, and the guide slot 11 is provided in a substantially parallel direction. At this time, the slightly inclined portion of the guide long hole 11 is set so that only a very small amount is inclined toward the door surface as it approaches the position of the groove 6. The interlocking member rotating shaft 12 is arranged as close as possible to the indoor side of the frame-side upper plate 8.

  Next, as shown in FIG. 6, the shaft holding fitting 7 is provided with a shaft retaining side 13, a slide pin hole 14, and a connecting pin mounting hole 15, and is placed on the frame side upper plate 8 as shown in FIG. In such a state, the slide pin 16 is passed through the guide slot 11 and assembled together. Then, the shaft holding metal fitting 7 can move substantially linearly by the length of the guide long hole 11, and the movement range is substantially the groove 6 from the position where the shaft retaining side 13 of the shaft holding metal 7 is completely removed from the groove 6. It is preferable to set the position so as to cover the width of the first position, with the former position being the release position and the latter position being the holding position. In the first embodiment, two slide pins 16 are used and are arranged in the guide slot 11 at the same time so that the shaft holding bracket 7 moves substantially linearly in the guide slot 11. In the operation of moving the shaft holding fitting 7 to the holding position from the state in which the shaft center 5 is inserted into the groove 6 when the shaft is suspended, the slide pin 16 close to the groove 6 is inserted into the slightly inclined portion of the guide long hole 11. When it is hooked, the shaft retaining metal side 13 of the shaft holding fitting 7 is moved in the depth direction of the groove 6 by the operation of swinging the head, and the shaft core 5 is moved into the groove 6 without rattling by the operation of pushing the shaft center 5. It is configured to be fixed and held inside. Further, since the guide long hole 11 is substantially parallel to the door surface, the load of the door 32 is not applied in the direction in which the shaft holding bracket 7 is to be returned. In this configuration, the shaft is held against the frame side upper plate 8. There is no need for a separate means such as screwing for finally fixing the metal fitting 7.

  As shown in FIG. 7, the interlocking member 9 has an elongated surface material shape, and has a connecting pin mounting elongated hole 18 at both ends with the rotating shaft mounting hole 17 for the interlocking member as the center. As shown in FIG. 4, the interlocking member 9 and the frame-side upper plate 8 are rotatably assembled by the interlocking member rotating shaft 12, and the connecting pin mounting hole 18 on one side and the connecting pin mounting hole of the shaft holding bracket 7 are assembled. 15 is connected by a shaft holding bracket side connecting pin 19. Then, the other connecting pin attaching long hole 18 is arranged so as to protrude to the indoor side. Here, as shown in FIG. 2 and FIG. 3, the escape operation device 10 is disposed at a suspending side position that can be operated from the room side with the door 32 closed, and the operation member side connecting pin 20 is connected to the interlocking member 9. The operation member 21 is connected.

  Moreover, although the shape of the upper and lower frame 33 of the door is various, it is general that a door stop is formed on the indoor side of the pivot hinge position. Therefore, for example, as shown in FIG. 2, the door contact portion of the lower frame is cut away to such an extent that the interlocking member 9 and the operating member side connecting pin 20 can penetrate, and the interlocking member 9 is extended to the indoor side to operate the operating member. The side connection pin 20 may be connected to the operation member 21. The configuration of the escape operation device 10 having the operation member 21 is not particularly limited as long as the shaft holding bracket 7 can be moved via the interlocking member 9, and in an extreme example, the operation member 21 is not used. It is also possible to perform a movement operation by directly holding the indoor side end of the interlocking member 9. However, as shown in FIG. 3, since the doors are arranged around the upper and lower corners on the indoor side, it is necessary to consider the design surface and the ease of operation. Therefore, as shown in FIG. 8, an escape operation device 10 including an operation case 22, an operation member 21 that slides inside the operation case 22, and an operation member side connection pin 20 that connects the operation member 21 and the interlocking member 9 is provided. The case 22 is fixed to the indoor hanging side corner, the operation member 21 is movably incorporated in the operation case 22, and the operation member 21 and the interlocking member 9 are placed inside the lower frame by the operation member side connecting pin 20. It is good to configure so that they are connected.

  4 and 9 (a) show the holding position where the shaft 32 is inserted at a predetermined position of the groove 6 and the door 32 covering the shaft retaining edge 13 of the shaft holding fitting 7 is suspended. Even if the door tilts due to an earthquake and the door tip side bites into the frame 33 and cannot be opened, the operation member 21 may be moved from the room as shown in FIG. ), The shaft retaining metal side 13 of the shaft holding metal fitting 7 is completely displaced from the groove 6, and the door 32 is opened from the suspension side with the removal of the shaft center 5 by pushing the suspension side of the door 32 greatly thereafter. It becomes possible.

  Here, feelings may be upset during an earthquake, and it is important to use a simple method that is easier to understand because the release operation must be performed at both the top and bottom. Therefore, for example, although not shown, it is preferable to provide an uneven structure having elasticity so as to be distributed to the operation case 22 and the operation member 21 so as to be securely held once at the position of FIG. 9C. Then, after releasing the release operation, it is possible to perform an escape / opening operation such that the body comes into contact with the hanging base side of the door 32, and it is assumed that the probability of emergency escape becomes higher.

  Further, security against entry from the outside is also important. With only the configuration shown in FIG. 4, the shaft holding bracket 7 of the upper and lower frame side pivots can be moved from the outdoor side in the release direction. Therefore, as shown in FIG. 8, it is preferable that a lock member 23 is further provided in the escape operation device 10, and the lock member 23 is fitted into a moving space between the operation case 22 and the operation member 21 at the holding position. Then, the shaft holding fitting 7 cannot be moved from the outdoor side, and the crime prevention performance can be ensured. Therefore, in the configuration having the lock member 23, it is necessary to first remove the upper and lower lock members 23 at the time of escaping. Therefore, the method of removing the lock member 23 may be a simple method as shown in FIG.

  Here, as a hanging operation of the door 32 with a normal pivot hinge, as shown in FIG. 2, the lower shaft center 5 is disposed on the frame side lower pivot 3, and the door side lower pivot 4 includes the door 32. Bearings, sintered rings, etc. are provided to ensure durability when rotating while receiving a load at the time of opening and closing. First, the door 32 is temporarily held on the lower shaft center 5 and thereafter Many procedures involve inserting the upper shaft center 5 into the groove 6 of the frame-side upper pivot 1 while raising the upper portion of the door 32. This suspension procedure is excellent in workability in a two-stage operation in which a heavy door is temporarily supported by a lower pivot and then the upper portion is fitted. Therefore, in the pivot hinge with the emergency escape mechanism of the present invention, the lower shaft center 5 is set independently in a shape as shown in FIG. It is preferable that the outer periphery of the collar portion 25 is held by the shaft retaining side 13 of the shaft holding bracket 7 while being inserted into the groove 6 of the lower pivot 3. Then, the lower shaft center 5 is detached together with the door-side lower pivot 4 by the release operation of the operation member 21 at the lower position, and emergency escape is possible in the same manner.

  In the above description, the interlocking member 9 is connected to the operation member 21 via the interlocking member 9 in the movement operation of the shaft holding fitting 7. However, the present invention is not limited to this structure, and the interlocking member 9 is used as shown in FIG. Instead, the configuration may be such that the interior side of the shaft holding bracket 7 is extended extremely long and directly connected to the operation member 21. However, in this case, it is assumed that the distance from the shaft retaining edge 13 of the shaft holding fitting 7 to the operation member 21 is long, and it is difficult to obtain a lateral operation force for sliding the shaft holding fitting 7. It is preferable to add a guide portion 26 for the movement of the shaft holding bracket 7. Further, in the pivot hinge with an emergency escape mechanism of the present invention, the indoor escape operation device 10 protrudes from the indoor door contact surface or floor as shown in FIG. As can be seen from FIG. 11 which shows the state of being opened once, it is arranged only closer to the vertical frame than the maximum opening portion, and there is no particular problem in traffic.

  Next, as a second embodiment, the shaft holding bracket 7 is arranged so as to be rotatable on a horizontal plane with respect to the frame-side upper pivot 1, and the shaft holding bracket 7 before the door is suspended is not covered with the groove 6. The shaft holding fitting 7 can be rotated by the operation of inserting the shaft center 5 of the door-side upper pivot 2 into a predetermined position of the groove 6 so that the shaft center 5 can be held without wobbling, and at the same time the shaft holding fitting 7 returns. A description will be given of an emergency escape mechanism using a configuration that can prevent rotational movement in a direction and also has means for releasing the blocking. Similarly to the first embodiment, this configuration is a configuration that does not require a relatively complicated separate fixing method such as screwing on the outdoor side of the pivot hinge after the hanging operation.

  FIG. 12 is a perspective view of the frame-side upper pivot 1 in the second embodiment, in which the boomerang-type shaft holding bracket 7 is arranged so as to be able to rotate in the horizontal direction with respect to the frame-side upper plate 8, and is further long. A fixing pin 28 that moves while being urged by a spring in the hole 27 is provided, and the fixing pin 28 is attached to the interlocking member 9. And the edge part of the interlocking member 9 is largely taken out indoors, and is connected with the operation member 21 similarly to 1st embodiment.

  FIG. 13 is a trajectory diagram showing the operation of inserting the shaft center 5 of the door-side upper pivot 2 into the groove 6 of the frame-side upper pivot 1 and the operation released at the time of emergency escape. First, as a hanging operation, as shown in FIG. 13 (a), when the shaft center 5 is inserted from the horizontal direction with the inner side 29 of the shaft holding fitting 7 facing the outdoor side, FIG. 13 (b). 1, one boomerang-shaped inner side 29 of the shaft holding fitting 7 is pushed and rotated by the shaft center 5, and at the same time, the boomerang-shaped outer side 30 of the shaft holding fitting 7 pushes the fixing pin 28 to enter the elongated hole 27. The other boomerang-shaped inner side 29 presses the shaft center 5 from the outside at the stage of FIG. 13C in which the shaft center 5 is disposed at a predetermined position in the back of the groove 6 and the fixing pin 28 is It is configured to get over one end of the holding bracket 7 and return to the inside of the long hole 27, hold the shaft center 5 without rattling, and automatically block the movement of the shaft holding bracket 7 in the opening direction. Yes.

  And as shown in FIG.12 and FIG.13, the edge part of the interlocking member 9 is connected with the operation member 21 of the escape operation apparatus 10 provided in the indoor side hanging origin position. Further, the interlocking member 9 is mounted on the frame side upper plate 8 by the interlocking member rotating shaft 12, and the fixing pin 28 can be moved in the long hole 27 by the rotational operation of the interlocking member 9. Then, in an emergency, when the operating member 21 is moved from the state of FIG. 13C to rotate the interlocking member 9 and the fixing pin 28 is moved to the end in the long hole 27, the fixing pin 28 and the boomerang-shaped shaft are held. The engagement with the inner side 29 of the metal fitting 7 is released, and the door can be detached as shown in FIG. Also in the second embodiment, the configuration of the escape operation device 10 is not particularly limited. For example, even if the configuration is such that the front end on the indoor side of the interlocking member 9 protrudes from the upper and lower frame surfaces, it has that portion. The release operation can be carried out by rotating it.

  Ordinary pivot hinges usually have a decorative cover 31 on the frame-side vertical pivot and the door-side vertical pivot at the final stage of construction. There are various methods for fixing the decorative cover 31 to each pivot. The main ones are a method of fastening a metal cover such as stainless steel with a screw, and a resin-made decorative cover 31 is fitted to each pivot by the elasticity of the decorative cover 31 itself. There are many things to include. However, in the pivot hinge with an emergency escape mechanism of the present invention, when the metallic decorative cover 31 is completely fixed as in the former case, the makeup is performed at the stage of removing the shaft center 5 after releasing the shaft holding bracket 7 from the groove 6. The shaft 5 is caught on the cover 31, which is not good. Therefore, the above-described pivot hinge with an emergency escape mechanism preferably uses a resin decorative cover 31 that is detached when a strong force of a certain level or more is applied or the resin portion is broken and detached. If a metal decorative cover 31 is used, it is preferable to provide a means such that the mounting screw is made of resin and the resin screw is broken and removed when a certain level of force is applied.

It is a perspective view of the outdoor side in a first embodiment of a pivot hinge with an emergency escape mechanism of the present invention. It is the accommodation longitudinal cross-sectional view in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a perspective view of the indoor side lower part in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is the accommodation top view of the frame side upper pivot in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a top view of the frame side upper plate in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a top view of the axis | shaft holding | maintenance metal fitting in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a top view of the interlocking member in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a perspective view of the escape operation apparatus in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a top surface locus diagram which shows the release operation of the shaft holding metal fitting by the movement operation of the operation member of the frame side upper pivot in the first embodiment of the pivot hinge with the emergency escape mechanism of the present invention. It is a perspective view of the lower pivot hinge in 1st embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a top view of the structure which connected the shaft holding metal fitting in 1st embodiment directly to the operation member of the pivot hinge with an emergency escape mechanism of this invention. It is a perspective view of the frame side upper pivot in 2nd embodiment of the pivot hinge with an emergency escape mechanism of this invention. It is a top surface locus diagram which shows release operation of the axis holding metal fitting by operation of movement of the operation member of the frame side upper pivot in the second embodiment of the pivot hinge with emergency escape mechanism of the present invention. It is a schematic diagram of the state in which the door tip of a door contacts a frame body at the time of an earthquake, and it becomes impossible to open.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame side upper pivot 2 Door side upper pivot 3 Frame side lower pivot 4 Door side lower pivot 5 Shaft center 6 Groove 7 Axis holding bracket 8 Frame side upper plate 9 Interlocking member 10 Escape operation device 11 Guide long hole 12 For interlocking member Rotating shaft 13 Shaft retaining side 14 Slide pin hole 15 Connecting pin mounting hole 16 Slide pin 17 Linking member rotating shaft mounting hole 18 Connecting pin mounting long hole 19 Shaft holding bracket side connecting pin 20 Operation member side connecting pin 21 Operation Member 22 operation case 23 lock member 24 constricted portion 25 collar portion 26 guide portion 27 long hole 28 fixing pin 29 inner side 30 outer side 31 decorative cover 32 door 33 frame

Claims (5)

It consists of door-side pivots that are respectively arranged on the upper and lower sides of the door suspension and frame-side pivots that are respectively arranged on the upper and lower sides of the frame body, with the axis centered on either the door side or the frame side of the upper and lower pivots. In addition, the other side is provided with a groove in which the shaft center can be inserted from the horizontal direction and a shaft holding bracket, and the door can be hung on the frame body by inserting the shaft center into a predetermined position in the groove and covering the shaft retaining bracket, A pivot hinge with a configuration that allows an appropriate holding state to be obtained without the need for separate fixing of the shaft holding bracket on the outdoor side, and extends the interlocking member attached to the end of the shaft holding bracket or the shaft holding bracket to the indoor side. The tip is connected to the operation member, and a mechanism is provided to move the shaft holding bracket by moving the operation member from the indoor side to release the cover to the shaft center. The upper and lower door pivots by pushing out the suspension side Emergency escape mechanism with a pivot hinge, characterized in that the openable door at Tsumoto side by separating the frame side pivot. A configuration in which an appropriate holding state can be obtained without a separate fixing work on the outdoor side by simply covering the shaft center with a shaft holding bracket is formed in a substantially V shape or a substantially U shape with the groove of the pivot opened outward. Then, it is arranged on the horizontal plane of the pivot, and the shaft holding bracket is slid in a direction substantially perpendicular to the direction of the groove from the state where the shaft center provided in the vertical direction is inserted at a predetermined position in the groove. Then, the mechanism for moving the shaft holding fitting from the indoor side to release the cover to the shaft center extends the end of the shaft holding fitting to the indoor side and connects the operation member to slide the operation member. It is a configuration in which the interlocking member is attached to the shaft holding bracket, the end of the interlocking member is extended to the indoor side and connected to the operation member, and the shaft holding bracket is slid by moving operation of the operation member. The claim according to claim 1, Pivot hinge with atmospheric escape mechanism. A configuration in which an appropriate holding state can be obtained without a separate fixing work on the outdoor side by simply covering the shaft center with a shaft holding bracket is formed in a substantially V shape or a substantially U shape with the groove of the pivot opened outward. When the shaft holder is placed on the horizontal plane of the pivot, and the shaft holding bracket is rotated on the horizontal plane of the pivot, the vertical center axis is inserted at a predetermined position in the groove. A pivot hinge having a configuration for embracing the shaft center and at the same time having means for preventing rotational movement in the direction in which the shaft holding bracket returns, and further having means for releasing the blocking means, The mechanism that releases the cover to the shaft center by moving the shaft holding bracket from the shaft is provided with an interlocking member that is pivotably mounted in the vicinity of the pivot shaft retaining bracket, and the shaft holding bracket rotates at one end of the interlocking member. Providing means for releasing the blocking state of The end portion is extended to the indoor side, connected to the operation member, and the release member is obtained by the operation of moving the operation member, whereby the shaft holding bracket can be rotated in the returning direction. The pivot hinge with an emergency escape mechanism according to claim 1. A lock mechanism is added to the release operation by the operating member on the indoor side, and the operating member can be locked at the holding position where the shaft holding bracket covers the shaft center and the releasing position. The pivot hinge with an emergency escape mechanism according to any one of claims 1 to 3, wherein the movement release operation is prevented. The mounting means for the decorative cover of the pivot hinge is configured so that it can be held with a force that does not disengage from the pivot body during normal use, and is constant during the push-out operation on the door suspending side when the shaft holding bracket is released. The emergency escape according to any one of claims 1 to 3, wherein the decorative cover is removed or damaged when the load is applied, and the shaft center can be detached from the groove of the pivot hinge. Pivot hinge with mechanism.

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