JP2007063758A - Door with emergency escape sub-door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door with an emergency escape sub-door that can be opened even when the door closeably supported on a frame body incorporated in part of a building or a warehouse or in part of a structure such as a rack for storing articles is plastically deformed by an earthquake, resulting in inability to be opened. <P>SOLUTION: The door closeably supported on the frame body incorporated in a structural plane of part of the structure houses the emergency escape sub-door. The door 3 is shaped into a rotor and stored in an opening portion 4 formed in a door body 2 in the state of being fitted to the door body 2 in the direction of its thickness. It can be separated from the opening portion 4 with rotating operation around a center axis. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides for a case where a door that can be opened and closed by a frame incorporated in a part of a structure such as a building or warehouse or a rack for storing articles cannot be opened due to an earthquake or the like. The invention relates to a door with an emergency escape door that houses an emergency escape child door.

  Structures such as buildings and storage racks have openings for people and goods to go in and out, and the frame built in the openings prevents people from entering from outside and the release of goods from inside A door is fitted for.

  In this door-attached structure, when it is assumed that the structure has undergone an earthquake, a person who remains inside the structure even if plastic deformation remains in the main body of the structure or the frame forming the opening Is considered so as to maintain a state in which the door can be opened and closed in order to escape and to carry out articles (see Patent Documents 1 to 4).

  If the structure is damaged to the extent that the door cannot be opened and the door cannot be opened manually, it will not be possible to go outside unless the door is destroyed. In order to do so, it is necessary to attach a child door for escape to the door (see Patent Documents 5 and 6).

Japanese Patent Laid-Open No. 11-44163 (Claim 1, paragraph 0014, FIG. 2, FIG. 3) Japanese Patent Laid-Open No. 11-210340 (paragraph 0001, paragraphs 0027 to 0046, FIG. 2) Japanese Patent Laying-Open No. 2003-27854 (Claim 1, paragraphs 0010 to 0011, FIGS. 8 and 9) JP 2003-49588 A (Claim 1, paragraphs 0016 to 0018, 0029 to 0031, FIG. 2 and FIG. 3) JP-A-9-132987 (Claim 1, paragraphs 0001 to 0002, FIGS. 1 to 3) JP 2004-68254 A (Claim 1, paragraph 0001, paragraphs 0027 to 0046, FIG. 2)

  In patent document 5, since the shape of the child door is a disk shape, the external force acting on the door surface received by the door body can flow in the circumferential direction along the edge. It is considered that there is a possibility that the child door itself can be opened even in a state where the door body is plastically deformed and the door body cannot be opened. However, as long as the door body is deformed by receiving an external force in the out-of-plane direction, it is easy to deform the child door following the deformation, so the child door is not always able to maintain the original shape and is opened. It is likely to be impossible.

  In Patent Document 5, the child door is kept closed by simply fitting the door in the thickness direction in the opening of the door body. When plastic deformation occurs at the edge of the door, it is difficult to remove the child door from the opening while correcting the deformation of the edge.

  The present invention proposes a door with an emergency escape child door that can open the child door even when plastic deformation occurs in the door body.

  In the first aspect of the invention, in the door that is supported by the frame incorporated in a part of the structure of the structure so as to be opened and closed, and accommodates the emergency escape child door, the child door has a rotating body shape, The door body is stored in a state where the door body is fitted in the thickness direction of the door body, and the door body can be detached from the opening portion by a rotation operation around the central axis. It also allows the child door to be opened when it occurs. The structure includes all structures that house openable doors such as buildings, warehouses, and racks. The child door is housed in the opening by rotating around the central axis.

  The child door is a cylindrical shape, a truncated cone shape, or a hemispherical rotating body shape, and the external force received by the peripheral surface flows in the circumferential direction, so that the child door itself is a door. Since it has a characteristic of high resistance to deformation caused by external forces in the in-plane direction and out-of-plane direction acting on the main body, even if plastic deformation occurs in the door main body, there is an increased possibility that the child door will not be deformed. It does not matter whether the rotating body of the child door has a solid cross section or a hollow cross section. In the case of a hollow cross section, the rotor door has a cylindrical shape, and end plates are joined to both end faces.

  In addition, since the child door can be freely detached from the opening by rotating around the central axis, the child door itself has a shape that hardly leaves deformation, and the edge around the opening is plastically deformed. Even if this occurs, the child door can be removed from the opening while correcting the deformation of the edge by rotating the child door, which is almost in its original shape, so plastic deformation around the opening of the door body Regardless, the child door can be opened.

  If the child door can be detached from the opening by a rotating operation around its central axis, the effect of correcting the deformation occurring at the edge around the opening and the effect of being able to leave the opening can be obtained. By combining the rotation operation around the central axis with the movement operation in the thickness direction as described in claim 2, the edge deformation correction effect and the child door separation effect are maintained. In this case, the child door is rotated, for example, to release the engagement state with the heel that maintains the closed state, and the child door is detached from the opening as it is by the movement operation in the thickness direction.

  As described in claim 3, when the child door is housed by being screwed into the opening portion by screwing by rotation operation around the central axis, the child door is rotated. Only by this, the child door can be guided and moved in the direction of detachment, so the effect of correcting the deformation of the edge around the opening is enhanced, and the reliability of the detachment when plastic deformation occurs in the edge is increased. Will increase.

  In this case, a male screw is formed on one of the outer peripheral surface of the child door and the inner peripheral surface of the opening, and a female screw is formed on the other, so that the child door is housed in the opening while being guided around the opening. Also, since it is detached from the opening, if the child door is removed from the stored state while rotating, the opening around the opening is also in accordance with the male or female screw of the child door even when plastic deformation occurs around the opening. Since the female screw or the male screw is corrected, it becomes easier to remove the child door than when the screw is not used.

  In the invention according to claim 4, in the door that is supported by the frame incorporated in a part of the structure of the structure so as to be freely opened and closed, the child door for the emergency escape is housed, and the child door is formed into a rotating body shape. The door is housed in the opening formed in the door body in the thickness direction of the door body, and the handle is rotatably supported around the door body opening, and the child door is fixed to the handle. By allowing the child door to be freely detached from the opening by a handle overturning operation, the child door can be opened even when plastic deformation occurs in the door body. The child door is housed in the opening by the standing operation of the handle.

  Also in claim 4, the child door is a rotating body shape such as a columnar shape, a truncated cone shape, a hemispherical shape, etc., by flowing an external force received by the peripheral surface in the circumferential direction, and a shape with high stability against the external force, Since the child door itself has a high resistance to deformation due to external forces acting on the door body in the in-plane direction and out-of-plane direction, even if plastic deformation occurs in the door body, the child door does not remain deformed. The possibility increases.

  In addition, the child door itself can be easily detached from the opening by turning the handle that is fixed to the door body, so that the child door itself has a shape that hardly deforms, and the edge around the opening is plastically deformed. Even if this occurs, the child door that has almost maintained its original shape can be removed from the opening without depending on rotation around the central axis, regardless of plastic deformation around the opening of the door body, The child door can be opened.

  When the child door is to be fitted to the opening while being supported by the door body so as to be rotatable around any fulcrum around the child door, when the child door is to be opened from the closed state, the child door May collide with the edge of the opening. For example, if the child door has a cylindrical shape or a truncated cone shape close to a cylinder and the fulcrum is located on the indoor side of the door body or on the outdoor surface, the outdoor side or the indoor side opposite the fulcrum When the point farthest from the fulcrum of the child door located at is to be opened, there is a possibility of colliding with the inner peripheral surface of the opening.

  On the other hand, according to the fourth aspect, the handle is rotatably supported around the opening of the door body, and the child door is fixed to the handle so that the support position (lower bracket 10) of the child door 3 is secured as shown in FIG. ), That is, the rotation center of the child door 3 can be arranged at a position away from the child door 3 or at a position protruding from the surface of the door body 2, and each point of the child door 3 is connected to the rotation center. Since the wire can be lengthened, the possibility that a part of the child door 3 collides with the inner peripheral surface of the opening when the child door 3 is to be opened is reduced, and the child door 3 can be reliably opened. Become.

  In addition to the case where the child door is formed as a single body, the child door is integrated with the surface plate exposed on the indoor side or outdoor surface of the door main body as described in claim 5, There may be a fitting portion having a rotating body shape such as a columnar shape, a truncated cone shape, or a hemispherical shape.

  When the child door has a rotating body shape as in Patent Document 5 and is fitted to the opening with the end face in the thickness direction not projecting from the opening, the child door is completely removed by deformation of the opening. There is a possibility that the child door cannot be opened by entering the opening. On the other hand, in claim 5, since the surface plate is exposed on the surface of the door body, the surface plate is kept exposed on the surface of the door body even if the door body is deformed. It is possible to avoid a situation in which the door does not completely enter the opening and cannot be removed.

  Although the door with an emergency escape child door has a child door, even if a deformation | transformation remains in a door main body, it can attain escape from a child door, However, Claim 1 as described in Claim 6 In any one of Claim 5 thru | or, if an earthquake-resistant element is integrated with a door main body, since stability with respect to a deformation | transformation of a door main body will improve, possibility that a deformation | transformation will remain in a door main body falls, and escape from a child door This will further increase the certainty.

  Further, as described in claim 7, when the door main body is closed, the projection protruding from at least one of the door main body and the frame body to the other is engaged with the other, so that the door main body maintains the closed state. The integrity of the door body and the frame can be ensured, and the door itself can function as an earthquake-resistant element that suppresses deformation of the frame. As a result of suppressing the deformation of the frame by the door main body, the deformation of the door main body is also suppressed, the stability against the deformation of the door main body is improved, and the certainty of escape from the child door can be increased. When the door is closed, the projection is engaged with the frame body or the door main body, so that the door is kept closed against the horizontal force in the in-plane direction or out-of-plane direction of the door.

  In claim 7, the door body is engaged with the frame body at the periphery of the door body in a closed state, thereby ensuring the integrity of the structure including the frame body and the door, and against the horizontal force during an earthquake. The door body can behave integrally with the structure. As a result, the horizontal rigidity of the door body is added to the horizontal rigidity of the structure, and the horizontal rigidity of the door body is added. The door body is effectively used as a seismic element for the structure.

  The protrusion is housed so that it can be moved in and out between at least one of the door body and the frame and at least one of the door body and the frame, and protrudes when the door body is closed. May engage the other. In the latter case, there are cases where the object appears and disappears in conjunction with the operation of the operation unit installed on the door body, and cases where the object appears and disappears in conjunction with the opening and closing operation of the door body. The protrusion may also protrude from the door body in the in-plane direction and engage the frame body in the out-of-plane direction, or protrude in the out-of-plane direction and engage in the in-plane direction.

  In both cases where the protrusion is fixed and can be moved in and out, the protrusion is in the closed state of the door body and engages with the frame body or the door body when a horizontal force is applied to the door body. By being located in the peripheral part of the door, the engagement state is brought into an early state particularly when a horizontal force is applied in the in-plane direction, and the horizontal rigidity of the door body is added to the structure from the initial stage when the earthquake occurs. The horizontal rigidity of the door body is exhibited from the initial stage when the horizontal force is applied, as the gap (clearance) between the protrusion and the receiving portion receiving the protrusion is smaller. If there is a gap between the protrusion and the receiving part, the horizontal rigidity of the door body will be delayed between the door body and the frame, although the time for the horizontal rigidity of the door body will be delayed. It is not always necessary to reduce the gap because it is exhibited when excessive relative deformation occurs.

  In the closed state of the door body, the projections try to maintain the engaged state even when a horizontal force is applied, which is equivalent to installing a face material like a seismic wall so as to cover the opening in the frame. When the door body receives a horizontal force in the in-plane direction, the horizontal rigidity of the door body is exhibited. Since the horizontal rigidity of the door body functions to constrain the deformation of the opening, that is, the frame, the earthquake resistance of the structure including the frame is improved.

  In claim 1, the child door is formed into a rotating body, and is stored in a state where the child door is fitted in the opening formed in the door main body in the thickness direction of the door main body, and is detached from the opening by a rotation operation around the central axis. By making it freely, the child door itself has a three-dimensional shape that hardly remains deformed, and even when plastic deformation occurs at the edge around the opening, the child door rotates almost maintaining its original shape. Since the child door can be detached from the opening while correcting the edge deformation, the child door can be opened regardless of plastic deformation around the opening of the door body.

  In particular, in claim 3 in which the child door is screwed into the opening by screwing by a rotation operation around the central axis, the child door can be guided and moved only by rotating the child door, The effect of correcting the deformation of the edge around the opening is enhanced, and the certainty of separation when the edge is plastically deformed can be increased.

  According to a fourth aspect of the present invention, the child door is formed in a rotating body shape, stored in a state in which the child door is fitted in an opening formed in the door body in the thickness direction of the door body, and the opening is opened by a fall operation of a handle fixed to the door body. In addition to the fact that the child door itself has a three-dimensional shape that is difficult to leave deformation by allowing it to be freely detached from the door, even when plastic deformation occurs at the edge around the opening, it does not depend on rotation around the central axis. In addition, since the child door that maintains almost the original shape can be removed from the opening, the child door can be opened regardless of plastic deformation around the opening of the door body.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 3, the invention according to claim 1 is supported by an openable / closable frame 5 incorporated in a part of the structure, and houses a child door 3 for emergency escape. The child door 3 has a columnar shape or a rotating body shape such as a truncated cone shape, and is accommodated in a state in which the child door 3 is fitted in the opening 4 formed in the door body 2 in the thickness direction of the door body 2. This is a door 1 with an emergency escape door that can be freely detached from the opening 4 by a rotating operation around.

  FIG. 1- (a) shows an elevation when the child door 3 is disposed below the door body 2, and FIG. 1 (b) shows a cross section taken along line AA. FIGS. 2A and 2B show the case where the child door 3 is disposed at the center of the door body 2. In FIG. 1- (a), FIG. 2- (a), (b), a broken line shows seismic elements 6 such as braces. The door body 2 in which the seismic element 6 is disposed corresponds to a specific example of the invention described in claim 6. Since the child door 3 is for emergency escape, it is appropriate to have a truncated cone shape whose diameter gradually increases from the outdoor side to the indoor side as shown in the figure, or vice versa, so that it can be opened from the indoor side. The door body 2 is mounted so as to fit into the opening 4 having a cylindrical shape or a truncated cone shape, the diameter of which decreases from the indoor side to the outdoor side or vice versa.

  Although the child door 3 may be formed in a columnar shape or the like as a single unit, it is shown in FIG. 3 that it can be attached to and detached from the opening 4 without being affected by deformation that may occur in the door body 2. As shown in the figure, a surface plate 3a that is exposed to overlap with the indoor or outdoor surface of the door body 2, and a cylindrical shape or a truncated cone shape that is integrated with the surface plate 3a and fits into the opening 4 It consists of two parts of the body-shaped fitting part 3b, and is exposed to the surface of the door body 2 on the indoor side or the outdoor side of the surface plate 3a. In the drawing, the surface plate 3 a of the child door 3 overlaps the indoor side or outdoor surface of the door body 2, but the child door 3 is arranged so that the surface of the surface plate 3 a is flush with the surface of the door body 2. The opening 4 may be fitted. The child door 3 including the surface plate 3a and the fitting portion 3b corresponds to a specific example of the invention described in claim 5.

  The child door 3 is attached to the opening 4 and detached from the opening 4 by a rotation operation around the central axis from the shape. Even if the door body 2 is plastically deformed especially around the opening 4, it can be removed while correcting the deformation around the opening 4 if the child door 3 rotates around its central axis. This is because the child door 3 can be attached and detached with almost no influence of the deformation of the door body 2. Since the child door 3 is opened mainly from the indoor side, the indoor side can be opened to the indoor side as shown in FIG. 1- (b) even if an obstacle exists on the outdoor side of the door body 2. It is appropriate to fit into the opening 4.

  FIG. 3 (a) shows a front side of the child door 3 composed of the surface plate 3a and the fitting portion 3b, and FIG. 3 (b) shows a cross section taken along the line BB. As shown here, the child door 3 has a thickness equivalent to the thickness of the door body 2, and a handle 3c for rotating operation is integrated with the surface plate 3a. The form of the handle 3c is not limited.

  In the case where a rotational moment more than expected is required when the child door 3 is opened, in order to secure the length of the arm of the handle 3c, a detachable handle 3d is detachably attached to the handle 3c as shown in FIG. The handle 3c itself is extended or connected. In the case where the child door 3 has a truncated cone shape, there is an advantage that it can be opened without requiring force if it can be rotated slightly at the time of opening.

  FIG. 3 (b) shows that the fitting portion 3b has a spiral peak 3e and a groove portion 4a into which the fitting door 3b is screwed so that the child door 3 can be attached and detached from the indoor side by rotation. A mode that it formed in the peripheral surface of the door 3 and the internal peripheral surface of the opening part 4 is shown. In this case, as shown in FIG. 4- (a), a spiral peak 3e is formed on the outer periphery of the fitting portion 3b, and on the inner periphery of the corresponding opening 4 of the door body 2 as shown in (b). A groove 4a is formed. FIGS. 3 and 4 in which the child door 3 is accommodated in the opening 4 by screwing correspond to a specific example of the invention described in claim 3.

  As shown in FIGS. 5 and 6, the invention described in claim 4 is a door that is supported by an openable and closable frame 5 incorporated in a part of the structure, and houses a child door 3 for emergency escape. The child door 3 has a columnar shape or a rotating body shape such as a truncated cone shape, and is housed in a state of being fitted in the opening 4 formed in the door body 2 in the thickness direction of the door body 2, A handle 7 is rotatably supported around the opening 4 of the door body 2, the child door 3 is fixed to the handle 7, and the child door 3 can be freely detached from the opening 4 by a fall operation of the handle 7. It is a door 1 with an emergency escape door.

  FIG. 5- (a) shows an inside elevation of the door body 2 when the child door 3 is opened and closed using the handle 7 using a lever, and (b) shows a horizontal section of the door body 2. FIG. 6 (a) and 6 (b) show longitudinal sections of the child door 3 shown in FIG. 5 in a closed state and an open state, respectively.

  The child door 3 can be supported by a hinge installed on the door main body 2 so as to be freely rotatable. However, in FIGS. 5 and 6, the force is expanded and transmitted to the child door 3. As described above, in order to open and close the handle 7 by an overturning operation and a standing operation, the child door 3 is fixed to the handle 7 by an intermediate bracket 9 integrated therewith. Further, the lower end of the handle 7 is rotatably pivotally supported on the lower bracket 10 fixed to the lower position of the child door 3 of the door body 2, and the child door 3 is opened and closed by the fall / stand operation of the handle 7, and the door is opened when opened. It is made to separate from the main body 2. The handle 7 is held by an upper bracket 8 fixed at an upper position of the child door 3 when the child door 3 is closed. The upper bracket 8 has, for example, a groove shape in which the open side of the child door 3 is opened. When the child door 3 is closed, the upper bracket 8 is held by sandwiching the handle 7, but the holding method is not limited.

  Since the child door 3 is accommodated in the opening 4 formed in the door body 2 in a state of being fitted from the indoor side or from the outdoor side, the shape of the child door 3 is a conical shape close to a columnar shape as shown in the figure. In the case of the trapezoidal shape, when the child door 3 rotates around the horizontal axis on the surface of the door body 2, when the child door 3 is to be opened, a part of the child door 3 becomes the edge of the opening 4. There is a possibility of collision. On the other hand, as shown in FIG. 6, the support position (lower bracket 10) of the child door 3, that is, the center when the child door 3 is rotated is spaced from the child door 3, or protrudes from the surface of the door body 2. When the child door 3 is arranged at a certain position, a line connecting each point of the child door 3 and the center of rotation becomes longer, and the possibility that a part of the child door 3 collides with the opening 4 is reduced when the child door 3 is to be opened. Therefore, the child door 3 can be opened reliably.

  In the case of FIGS. 5 and 6, at least one of the outer periphery of the child door 3 and the inner periphery of the opening 4 is attached with a sealing material for ensuring airtightness if necessary, but let the child door 3 open. In order to reduce the frictional resistance with the sealing material due to the deformation of the door body 2, a low friction material such as tetrafluoroethylene resin (PTFE) is used together with the sealing material or instead of the sealing material. Intervened.

  FIGS. 7A and 7B show an example in which the child door 3 is rotated by rotating the handle 3c around the center in the axial direction and is opened by being pulled toward the handle 3c as it is. In this case, as shown in FIG. 8- (b), engaging portions 3f that engage with the door body 2 when closed are formed at a plurality of locations around the child door 3, and the surface around the opening 4 of the door body 2 is formed. On the side, an engaged portion 4b with which the engaging portion 3f is engaged is formed as shown in FIG. The engaging portion 3 f is formed on the surface plate 3 a of the child door 3. The engaged portion 4b is formed in a state of protruding from the surface of the door body 2 as shown in FIG. 8A, and is formed in a state of not protruding from the surface of the door body 2 as shown in FIG. The In the case of (c), an insertion port 4c into which the engaging portion 3f of the child door 3 is inserted is formed adjacent to the engaged portion 4b.

  In the case of FIGS. 7 and 8, the child door 3 maintains the closed state in a state where the engaging portion 3 f is engaged with the engaged portion 4 b, rotates around the axis, and the engaging portion 3 f becomes the engaged portion. It opens when it leaves 4b. In the case of FIG. 8- (c), it is opened when the engaging portion 3f matches the insertion port 4c. As shown in FIG. 8A, the stability of the child door 3 in the closed state is such as a leaf spring that urges the engaging portion 3f toward the engaging portion 3f of the engaged portion 4b toward the door main body 2 side. This is ensured by arranging the spring 11. 9A shows a cross section taken along the line CC of FIG. 7A, and FIG. 9B shows a horizontal cross section of the entire door body 2.

  In addition to a rack for storing articles, the structure is a general structure in which the door body 2 is supported by a frame 5 incorporated in a part of a wall surface or a construction surface, such as a building or warehouse as shown in FIG. Including the scale. As shown in FIGS. 10 and 12, the structure has a configuration in which the protrusion 12 is fixed to at least one of the door body 2 and the frame body 5 and engages with the other when the door body 2 is closed, At least one of the frame bodies 5 is roughly classified into a form in which the door body 2 is retracted and retracted between the other when the door body 2 is closed. 10 and 12 in which the protrusion 12 is fixed to at least one of the door body 2 and the frame body 5 correspond to a specific example of the seventh aspect.

  The form of the door body 2 is not limited, and a door made of a combination of face materials, such as a flash door, is used in addition to a shape in which face materials are bonded to a frame assembled from vertical and horizontal planes.

  FIG. 10 shows the door body 2 and the frame body 5 in the case where the door body 2 is integrally attached to the door body 2 by, for example, providing the door body 2 with a protrusion 12 that engages in the in-plane direction of the door body 2. The relationship is shown. Although FIG. 10 shows the hinged door-type door main body 2 in which a hinge 13 is connected to the suspension side of the door main body 2, when a sufficient space is secured around the opening surrounded by the frame body 5. The sliding door type door body 2 can also be used. In the case of the sliding door type, a movement parallel to the surface of the door main body 2 and a movement in a direction perpendicular to the surface of the door main body 2 while facing the opening 4 may be combined in order to securely engage the protrusion 12. is there.

  Regardless of the hinged door type or the sliding door type, the door body 2 may overlap the outdoor side of the frame body 5 as shown in FIG. In order to make the main body 2 function effectively as an earthquake-resistant element, it is better to store the door main body 2 in the plane of the frame body 5 in the closed state of the door main body 2. In the case of the hinged door type, the door main body 2 may be opened to the indoor side of the structure and may be opened to the outdoor side as illustrated. In either case of the hinged door type or the sliding door type, the protrusion 12 can be applied to the peripheral portion of the door body 2 as shown in FIG. 11 so that the horizontal force acting on the frame 5 can be received from the initial stage. Projected.

  Specifically, when the frame 5 is about to undergo in-plane deformation as shown in FIG. 14 due to the horizontal force acting on the frame 5, the protrusion 12 protrudes at a position near the corner where the amount of deformation is greatest. In the drawing, as shown in FIG. 11, there are two projecting portions on the upper and lower sides of the door body 2, for a total of four locations. When the door body 2 having a braided shape is used, the protrusions 12 are provided so as to be close to the vertical gutters of the upper and lower horizontal gutters or in the vertical position of the vertical gutters.

  When the projection 12 is provided on the door body 2 of the hinged door type, the door body 2 rotates around the hinge 13, so that the projection 12 is close to the outer periphery of the door body 2 so that the projection 12 does not collide with the frame 5. The surface of is formed in an arcuate curved surface. Specifically, as shown in FIGS. 10A and 10B, the center of the hinge 13 is the center of curvature and the distance to the surface of the protrusion 12 is a part of an arc having a radius (R1). Or a curved surface along the arc. The cross-sectional shape of the protrusion 12 is not limited and is formed in an arbitrary cross section such as a circle or a square. R2 indicates the distance from the center of the hinge 13 to the edge of the door body 2.

  A receiving portion 14 into which the protrusion 12 is inserted is formed in a box shape at a position corresponding to the protrusion 12 of the frame 5 that receives the protrusion 12 that protrudes from the door body 2. The frame 5 is composed of a vertical frame located on both sides of the door body 2 and a horizontal frame connecting the both vertical frames. The receiving portion 14 is formed on either the vertical frame or the horizontal frame. In order to stabilize the rectangular shape of the frame 5, the horizontal frame is arranged above and below the vertical frame as a general rule and constitutes a rectangular frame together with the vertical frame. However, there seems to be a problem in getting in and out of the opening. In some cases, the lower horizontal frame may be omitted.

  In order to transmit the force from the frame 5 to the projection 12 as the projection 12 starts to deform due to the horizontal force acting on the structure, as shown in FIG. In this state, the receiving portion 14 is combined with the receiving portion 14 so as to be locked to the inner peripheral surface of the receiving portion 14 in the horizontal direction or to be locked with a slight clearance. Although it is not always necessary to be locked to the inner peripheral surface of the receiving portion 14 in the vertical direction as shown in FIG. Since horizontal displacement causes displacement in the vertical direction, it is preferable that the vertical clearance is small.

  When there is a clearance between the protrusion 12 and the inner peripheral surface of the receiving portion 14, the protrusion 12 engages with the receiving portion 14 after a relative deformation exceeding the clearance occurs between the door body 2 and the frame body 5. The seismic performance of the door body 2 will be demonstrated.

  As shown in FIGS. 11 and 13, the door body 2 itself has a rectangular surface material, brace, or vertical and cross members to ensure resistance to the horizontal force of the door body 2 itself. A seismic element 6 such as a frame is incorporated. The face material may cover the entire surface of the door body 2 or may be disposed at each corner of the door body 2 as shown in FIG. Since braces bear a tensile force when a horizontal force in the plane of the frame 5 is applied, two braces are used as a set.

  FIG. 12 shows the relationship between the door body 2 and the frame body 5 in the form of a hinged door when the projections 12 project from the surface of the frame body 5 on the door body 2 side. Also in this case, the surface of the projection 12 near the outer periphery of the door body 2 is the center of the hinge 13 as shown in FIG. Is a part of an arc having a curvature center and a distance (R1) to the surface of the protrusion 12, or a curved surface along the arc. FIG. 12- (c) shows a cross section taken along line EE of (a). FIG. 13 shows a case where a triangular face material as the seismic element 6 of the door body 2 is arranged at each corner of the door body 2. The face material in this case resists horizontal force by acting to maintain the angle of the corner portion of the door body 2 at a right angle.

  FIG. 14 shows a state where the frame body 5 undergoes unexpected plastic deformation due to an earthquake and the door body 2 becomes difficult to open when the structure is a building or a warehouse, regardless of the resistance of the door body 2. Show. In the present invention, the door body 2 becomes an earthquake-resistant element and bears the horizontal force at the time of the earthquake, so that unless the door body 2 is plastically deformed, the frame body 5 is unlikely to be plastically deformed. Even if plastic deformation occurs, it is possible to avoid an excessive deformation amount.

(A) is the elevation which showed the door main body which accommodated the child door, (b) is the sectional view on the AA line of (a). (A), (b) is the elevation which showed the case where a child door was stored in the center part of a door. (A) is the elevation which showed the child door in FIG. 1 or FIG. 2, (b) is the BB sectional drawing of (a). (A) is the perspective view which showed the external appearance of the child door shown in FIG. 3, (b) is the perspective view which showed the opening corresponding to a child door. (A) is an elevation view showing the closed state of the child door when the child door is opened and closed by opening and closing the handle, and (b) is a horizontal sectional view of (a). (A) is the longitudinal cross-sectional view of Fig.5- (a), (b) is the longitudinal cross-sectional view which showed a mode when a child door opened. (A) is the front view which showed the closed state of the child door in the case of opening and closing a child door by the rotation around the axis, (b) is the front view which showed the mode at the time of opening. (A), (c) is the perspective view which showed the to-be-engaged part which the engaging part of the child door shown in FIG. 7 engages, (b) is the perspective view which showed the child door which has an engaging part. . (A) is CC sectional view taken on the line of FIG. 7- (a), (b) is the horizontal sectional view of the whole door. (A) is a plan view showing the relationship between a door and a frame when a protrusion is provided on the frame side of the door, (b) is a partially enlarged view of (a), and (c) is a view of (a). It is DD sectional view taken on the line. It is the elevation which showed the door and frame which are shown in FIG. (A) is a plan view showing the relationship between the door and the frame when a projection is provided on the door side of the frame, (b) is a partially enlarged view of (a), and (c) is (a). It is the EE sectional view taken on the line. It is the elevation which showed the door and frame which are shown in FIG. It is the elevation which showed the behavior of the structure when an earthquake acts on the structure which is a building.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ......... Door 2 with an emergency escape child door ......... Door body 3 ......... Child door 3a ...... Surface plate 3b ...... Fitting part 3c ...... Handle 3d ...... Removable handle 3e ...... Mount part 3f ...... Engagement part 4 ... Opening part 4a ... Groove part 4b ... Fitting part 4c ... Insert port 5 ... ... Frame body 6 ... Seismic element 7 ... ... Handle 8 ... ... Upper bracket 9 ... ... Intermediate bracket 10 ... Lower bracket 11 ... Spring 12 ... Protrusion 13 ... Hinge 14 ... Receiving part

Claims (7)

  A door that is supported by a frame incorporated in a part of the structure of the structure so as to be opened and closed, and accommodates an emergency escape child door. The child door has a rotating body shape and is formed on the door body. A door with an emergency escape door, which is housed in a state of being fitted in the opening in the thickness direction of the door body and can be freely detached from the opening by a rotation operation around a central axis.   2. The door with an emergency escape child door according to claim 1, wherein the child door can be detached from the opening by a rotation operation around a central axis and a movement operation in a thickness direction.   The door with an emergency escape child door according to claim 1 or 2, wherein the child door is housed by being screwed into the opening by screwing by a rotation operation around a central axis thereof.   A door that is supported by a frame incorporated in a part of the structure of the structure so as to be opened and closed, and accommodates an emergency escape child door. The child door has a rotating body shape and is formed on the door body. The door is housed in a state where it is fitted in the thickness direction of the door body, a handle is rotatably supported around the opening of the door body, the child door is fixed to the handle, and the child door falls over the handle. A door with an emergency escape door, which can be freely detached from the opening by operation.   The child door has a surface plate that overlaps and is exposed on the indoor side or outdoor surface of the door main body, and a rotating body-shaped fitting portion that is integrated with the surface plate and fits into the opening. The door with an emergency escape child door according to any one of claims 1 to 4.   The door with an emergency escape door according to any one of claims 1 to 5, wherein a seismic element is integrated with the door body. 7. The door body according to claim 1, wherein when the door body is closed, a projection protruding from at least one of the door and the frame body to the other is engaged with the other to maintain the closed state. A door with an emergency escape door.

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