JP5872987B2 - Double-acting door - Google Patents

Description

  The present invention has a sliding door and a swing door, and in a state where the slide door is operated to a half-open position, the slide door and the swing door can be simultaneously opened and swinged to fully open the opening. Relates to the opening and closing door.

  This type of opening / closing door is known, for example, from Patent Document 1. There, a double-acting opening / closing door is constituted by a sliding door (sliding door) and a rotating door (oscillating door). At the upper frame part of the opening frame and the upper end of the rotating door body, there are provided guide rails that support the runners of the sliding door bodies. These guide rails are continuous only when the rotating door body is closed. Thus, the sliding door is structured to allow the transfer from one guide rail to the other guide rail. In a state where the slide door is closed, the runner is suspended by the guide rail on the opening frame side. If the sliding door is opened from this state to the half-open position toward the rotating door, the runner moves to the guide rail on the rotating door, and the entire sliding door is supported by the guide rail on the rotating door. Is done. Therefore, the opening can be fully opened by accompanying the sliding door to the rotating door and swinging open. In order to restrict the swinging door body from swinging when opening and closing the sliding door body, anti-rotation rods are provided above and below the swinging tip of the swinging door body, and these are attached to the upper and lower frames of the opening frame. It can be engaged.

  A similar open / close door can also be seen in US Pat. There, a runner is fixed to a suspension frame that supports a slide door (slide door), and the runner is supported by a guide rail provided across the entire width of the opening frame so as to be slidable. The slide door is pivotally supported with respect to the suspension frame so as to be swingable and openable via a pivot shaft. When the sliding door is opened from the closed position to the half-open position, the suspension frame moves along with the sliding door, and the rail frame fixed to the upper part of the sliding door is received by the roller row provided on the revolving door. Is supported by the revolving door. In this state, by turning the revolving door in the opening direction, the slide door swings along with the revolving door, and the opening can be fully opened by separating from the suspension frame.

  When the revolving door is turned in the closing direction, the slide door is again coupled to the hanging frame, so that the sliding door and the hanging frame can be slid to return to the closed position. Also in the open / close door of Patent Document 2, a lock mechanism for restricting the swing door from swinging when the slide door is opened and closed is provided on the side of the swing door. In addition, another lock mechanism is provided between the suspension frame and the slide door to restrict the slide door from swinging open about the pivot shaft when the slide door is opened and closed.

  Regarding the opening / closing door according to the present invention, the sliding door of Patent Document 3 is known. In this case, the slide door is slidably opened and closed by a first guide rail fixed to the opening frame and a second guide rail provided on a rotating door (swinging door). The slide door is provided with a runner that is guided by the first guide rail and a roller train that is guided by the second guide rail. The length of the first guide rail is set to be the same as the width of the sliding door, and the runner is suspended from the first guide rail and stored in the upper part of the sliding door separately from the first guide rail. The posture can be changed to the standby posture.

  Therefore, when the sliding door that was in the closed position is opened to the half-open position on the revolving door side and the runner is switched to the standby position, the sliding door is swung with the revolving door and the opening is fully opened. it can. The sliding door of Patent Document 3 includes a lock mechanism for restricting the swing door from swinging when the slide door is opened and closed, and the slide door as the swing door when the swing door is swinged open and closed. Another locking mechanism is provided between the doors to restrict it from exiting.

Japanese Utility Model Publication No. 60-091778 (page 8, line 15 to page 9, line 9, FIG. 5) Japanese Patent Laid-Open No. 06-058037 (paragraph number 0011, FIG. 4) Japanese Patent No. 4229748 (paragraph numbers 0029 to 0032, FIGS. 1 and 2)

  According to the open / close door of Patent Document 1, the slide door can be slid to the side of the swing door and opened to the half-open position, and if a wider opening width is required, the slide door and swing The door can be swung and fully opened. Similarly, in the open / close doors of Patent Document 2 and Patent Document 3, the slide door can be opened to the half-open position, and the slide door and the swing door can be opened to the fully open position.

  However, in the conventional double-acting opening / closing doors of Patent Documents 1 to 3, the sliding door and the swinging door constitute the opening / closing door in any case, so that the sliding door can be moved in and out to the half-open position. The opening width is only less than half the inner horizontal width of the opening frame. For example, when the inner right and left width of the opening frame is 120 cm, the opening width that allows entry and exit in a half-open state is only 53 cm or less. Therefore, when the wheelchair is moved in and out, it is necessary to open the slide door to the half-open position, and further to swing the slide door and the swing door to the fully open position. In addition, since the opening width in the half-open state is small, it is difficult for an assistant to enter and exit while holding the wheelchair user.

  In addition, the open / close door of Patent Document 2 is opened and closed with the suspension frame in a state where the slide door is coupled to the suspension frame, and the slide door is swung around a dedicated pivot shaft to enter and exit the suspension frame. When opening and closing each door, it is necessary to appropriately switch between the two types of locking mechanisms. For this reason, it is inevitable that more labor is required to open and close the door.

  Originally, this type of open / close door has a structure that opens each door to the fully open position to ensure the necessary opening width because the opening width that can be entered and exited in the half-open position is insufficient. There should be no. However, as described above, users who use wheelchairs on a daily basis are dissatisfied with usability, and it is desired that the opening and closing door can be opened and closed more easily even when the opening width of the opening is narrow.

  In order to increase the width of the opening that can be entered and exited in the half-open state, the inner width of the opening frame can be increased. However, in that case, it is inevitable that the entire opening / closing door becomes large and costs increase. In addition, the opening width of the opening frame of the open / close door provided in the house is determined by the structure of the building frame such as the width of the corridor and the opening width of the entrance and exit, so it is not possible to increase the opening width of the opening frame unnecessarily. However, there is a strong demand to improve the usability of the open / close door in an opening frame having a relatively small opening width. In particular, when installing an open / close door using an existing opening, in most cases, it is not allowed to increase the opening width of the opening frame, so double acting that can be adapted to an opening frame with a relatively small opening width. The opening and closing door is a condition for introduction.

  It is an object of the present invention to increase the opening width that can be entered and exited at a half-open position in an opening portion having a relatively small opening width. Therefore, it is easy for a wheelchair user and an assistant to open and close the door and to enter and exit the opening portion. It is to provide a double-acting open / close door that is easy to use.

  The double-acting opening / closing door according to the present invention includes a sliding door and a swinging door, and the double-acting opening / closing that can swing-open to the fully-open position by accompanying the sliding door that has been opened to the half-open position to the swinging door. Covers doors. The sliding door includes a leading door 2 and an intermediate door 3 that is opened and closed by the leading door 2. The leading door 2 includes a first suspended runner type runner 11 that is guided by a first guide rail 14 provided in the opening frame 1, and a first roller 12 that is opened and closed by a guide frame 30 provided in the intermediate door 3. Is provided. The intermediate door 3 is provided with a second roller 32 that is opened and closed by a second guide rail 52 provided on the swing door 4. The first runner 11 in the half-open position is separated from the first guide rail 14 and stored in the upper part of the leading door 2, and the first roller 12 is supported by the guide frame 30 of the intermediate door 3. The second roller 32 of the intermediate door 3 in the half-open position is supported by the second guide rail 52 of the swing door 4. As shown in FIG. 1, the double-acting opening / closing door according to the present invention has an opening width B <b> 2 that allows the opening to enter and exit to a half-open position that is half the inner opening width B <b> 1 of the opening frame 1. It is characterized by exceeding.

  The first runners 11 provided on the left and right sides of the leading door 2 are supported by a roller arm 19 supported so as to be vertically swingable between an upper operating posture and a lower standby posture, and are pivotally supported on the swinging tip of the arm 19. And a spring 21 for moving and urging the roller arm 19 toward the operating posture. The intermediate door 3 and the swing door 4 are provided with switching pieces 38 and 56 that contact the roller arm 19 and switch the first runner 11 to the standby posture. In a state where the roller arm 19 in the middle of opening is in contact with the switching piece 38 of the intermediate door 3, the leading door 2 can accompany the intermediate door 3 to perform the opening operation. While the leading door 2 and the intermediate door 3 move to the half-open position, the roller arm 19 is switched to the standby posture by the switching pieces 38 and 56 as shown in FIG.

  As shown in FIGS. 15 and 16, the intermediate door 3 is provided with a second runner 73 of a suspended wheel type that is guided by a third guide rail 74 provided in the opening frame 1, and the second roller 32. The second runner 73 is disposed on the closed end side of the intermediate door 3 and is guided by the third guide rail 74 so as to be able to move between the closed position and the half-open position. In a state in which the intermediate door 3 is opened to the half-open position, a runner opening 80 that allows the second runner 73 to enter and exit in the front-rear direction is formed in the opening frame 1 facing the second runner 73 in the front-rear direction (see FIG. 17). When the leading door 2 and the intermediate door 3 follow the swing door 4 and swing open and close, the second runner 73 can enter and exit from the runner opening 80.

  A cover body 81 that is formed of a magnetic metal plate and covers the runner opening 80 from the outer surface side is provided at the swing front end of the swing door 4. A magnet catch 82 that magnetically attracts the cover body 81 is provided inside the runner opening 80.

  A slide lock mechanism is provided between the swing door 4 and the leading door 2 to lock the leading door 2 so that it cannot slide when the swing door 4 swings. As shown in FIGS. 12 and 13, the slide lock mechanism includes a lock arm 61 that is supported so as to be swingable back and forth and can be displaced between a lock position and a lock release position, a lock piece 65 provided on the lock arm 61, The engagement piece 62 is provided on the leading door 2 side corresponding to the piece 65, and the spring 63 swings and urges the lock arm 61 toward the lock position. In the state where the swing door 4 is closed, the lock arm 61 is received by the membrane plate 8 inside the opening frame 1 and switched to the unlocking position. In a state in which the swing door 4 is moved open, the lock arm 61 is switched to the lock position by the spring 63, the lock piece 65 and the engagement piece 62 are engaged, and the leading door 2 can be closed and locked so as not to slide.

  A stopper is provided between the intermediate door 3 and the swing door 4 adjacent to each other in the closed position to define the movement limit in the closing direction of the intermediate door 3. As shown in FIG. 7, the stopper is provided near the opening end of the intermediate door 3 and the first contact body 36 provided near the swinging tip of the swinging door 4. The second contact body 54 is used.

  Between the lower part of the intermediate door 3 and the lower part of the leading door 2, a first anti-vibration structure that restricts vibration in the front-rear direction of the leading door 2 is provided. Between the lower part of the swing door 4 and the lower part of the intermediate door 3, a second anti-vibration structure that restricts vibration in the front-rear direction of the intermediate door 3 is provided.

  The first anti-vibration structure includes an anti-vibration rail 13 that is disposed below the leading door 2 and opens downward, and a guide structure that is disposed below the intermediate door 3 and guides the anti-vibration rail 13 in a transitional manner. As shown in FIG. 8, the guide structure includes a plurality of anti-roll rollers 41 that are rotatably supported around the vertical axis, and a plurality of tilt regulating rollers 43 that are rotatably supported about the front and rear axes. Consists of.

  A door support 46 that receives the open end of the leading door 2 that has been opened to the half-open position is fixed to the end face of the intermediate door 3 on the open end side. A catch structure for restricting the closing movement of the intermediate door 3 is provided between the vertical frame 6 on the open end side of the opening frame 1 and the door body 46. Thereby, the leading door 2 can be closed and moved prior to the intermediate door 3 in a state in which the leading door 2 and the intermediate door 3 are closed.

  In the present invention, the three doors of the leading door 2, the intermediate door 3, and the swinging door 4 constitute a double-acting opening / closing door, and can enter and exit in a state where the leading door 2 and the intermediate door 3 are opened to the half-open position. The opening width B2 is set so as to exceed a half value of the inner opening width B1 of the opening frame 1. Thus, according to the double-acting opening / closing door having the three-sheet structure, it is relatively small as compared with the conventional double-acting opening / closing door having the single-sliding door and the swinging door. Even if the opening has an opening width, the opening width B2 that can be entered and exited can be sufficiently increased. Therefore, according to the double-acting opening / closing door having a three-sheet structure according to the present invention, the opening width B2 that can be entered / exited is increased without opening the swinging door 4, so that the opening / closing can be easily performed. . Further, when the swing door 4 is opened and swinged while seated on the wheelchair, the swing door 4 can be opened while the wheelchair is close to the half-opened opening, so that the opening and closing operation of the door is easier. You can easily go in and out in a wheelchair. Further, in the double-acting open / close door having the three-sheet structure according to the present invention, the intermediate door 3 is opened / closed in conjunction with the opening / closing operation of the lead door 2, so that the lead door 2 and the intermediate door 3 are individually opened / closed. There is no need to open and close the double-acting doors more easily.

  The first runner 11 is configured by a roller arm 19 that swings up and down, a roller 20, a spring 21 that moves and urges the roller arm 19, and the urging force of the spring 21 can hold the first runner 11 in an operating posture. I made it. In addition, the switching pieces 38 and 56 for switching the first runner 11 to the standby position are provided on the intermediate door 3 and the swing door 4, and the first runner 11 is switched to the standby position or operated simply by opening and closing the leading door 2. Changed to posture. Therefore, when the leading door 2 and the intermediate door 3 are opened and closed, it is not necessary to perform a useless operation such as operating a lock mechanism, and the leading door 2 and the intermediate door 3 are held in a swingable open / close state, or are opened and closed. It is possible to return to a possible state, and a series of opening and closing operations can be easily performed with simpler operations. In addition, the switching piece 38 between the roller arm 19 and the intermediate door 3 is used so that the intermediate door 3 can be opened and closed along with the leading door 2, so that a double-acting type is provided compared to the case where a separate interlocking structure is provided. The structure of the open / close door can be simplified. Since the pair of left and right first runners 11 of the leading door 2 is moved and guided by the first guide rails 14 provided in the opening frame 1, the opening and closing movement of the leading door 2 between the closed position and the half-open position is always stable. It can be performed smoothly in the state.

  According to the double-acting type opening / closing door in which the suspension door-type second runner 73 that is guided by the third guide rail 74 is provided on the intermediate door 3, the fixed and supported third guide rail 74 and the swing door 4 The weight of the intermediate door 3 can be supported. Therefore, the support structure for opening and closing the intermediate door 3 can be simplified, the manufacturing cost of the double-acting type open / close door can be reduced correspondingly, and the intermediate door 3 can be opened and closed in a more stable state. In the state where the leading door 2 and the intermediate door 3 accompany the swing door 4 and swing open and close, the second runner 73 is separated from the third guide rail 74 and the runner opening 80 provided in the opening frame 1 is provided. Therefore, the doors 2 to 4 can be smoothly swung.

  Since the runner opening 80 formed in the opening frame 1 is located in the upper part of the front surface of the opening / closing door, it is easily noticeable and there is a risk that the appearance of the opening / closing door is impaired. However, if the runner opening 80 is covered from the outer surface side with the cover body 81 provided at the swinging tip of the swinging door 4, the runner opening 80 is prevented from conspicuous and the appearance of the open / close door can be improved. Further, the cover body 81 is formed of a magnetic metal plate and is magnetically attracted by the magnet catch 82 provided in the runner opening 80, so that the swing door 4 is opened when the leading door 2 and the intermediate door 3 are opened and closed. It is possible to more reliably prevent the rocking in the direction. When the swing door 4 in the fully open position is closed, the magnet catch 82 can prevent the swing door 4 from opening due to the reaction of colliding with the opening frame 1.

  If a slide lock mechanism is provided between the swing door 4 and the leading door 2, the leading door 2 that is slid open to the half-open position slides to the closed side by the engagement of the lock arm 61 and the engagement piece 62. Can be surely prevented. Therefore, when the swing door 4 is swinging open from the closed position, the leading door 2 can be reliably prevented from being closed and slid, and the leading door 2 and the intermediate door 3 can be opened and swing safely together with the swing door 4. . In addition, the lock arm 61 can be automatically switched between the lock position and the lock release position in conjunction with the operation of swinging the swing door 4 from the closed position to open or swinging from the fully open position to the closed position. Therefore, the trouble of switching the slide lock mechanism to the locked posture or the unlocked posture can be saved. Note that the intermediate door 3 opened to the half-open position has its door stop 46 received by the cuff surface of the open end side of the leading door 2, so that the intermediate door 3 does not move to the closed side alone. Absent.

  If a stopper composed of the first contact body 36 and the second contact body 54 is provided between the intermediate door 3 and the swing door 4, the intermediate door 3 is closed with the leading door 2 and the intermediate door 3 closed. Can be prevented from moving beyond the movement limit specified by the stopper to the closing side. Therefore, even when the intermediate door 3 in the closed state is intentionally closed, the intermediate door 3 is reliably prevented from being detached from the swing door 4 and the intermediate door 3 Can be kept closed.

  If the first anti-vibration structure is provided between the intermediate door 3 and the leading door 2, and further the second anti-vibration structure is provided between the swing door 4 and the intermediate door 3, the leading door 2 and the intermediate door 3 are When the slide is opened and closed, it is possible to reliably prevent the doors 2 and 3 from touching back and forth with the double swing structure. Further, since the doors 2 and 3 can be opened and closed in a state in which the forward and backward touch movement is prevented, the opening and closing operations of the leading door 2 and the intermediate door 3 can be performed lightly in a stable state.

  When the first anti-vibration structure is constituted by the anti-rail 13 provided on the leading door 2, the plurality of anti-roll rollers 41 provided on the intermediate door 3, the plurality of tilt regulating rollers 43, and the like, At the same time, the tilting restriction roller 43 can prevent the leading door 2 from tilting left and right. Therefore, when the leading door 2 is operated to be opened and closed with respect to the intermediate door 3, the leading door 2 is prevented from being jerky due to the tilting moment caused by the opening and closing operation force, and the leading door 2 is smoothly opened and closed. can do. In particular, the tilting moment is likely to act on the leading door 2 because the handle 9 is operated from a low position when sitting on the wheelchair. Even in such a case, the tilting restriction roller 43 prevents the leading door 2 from tilting. By restricting, the leading door 2 can be smoothly opened and closed.

  If a catch structure is provided between the door holder 46 provided on the open end side of the intermediate door 3 and the vertical frame 6 on the open end side of the opening frame 1, when the leading door 2 is closed, only the leading door 2 is operated. Can be closed and moved prior to the intermediate door 3. Further, in a state where the leading door 2 is started to be closed, the intermediate door 3 can be prevented from moving along with the leading door 2 by the catch structure. Therefore, after the leading door 2 is closed to a predetermined state, the intermediate door 3 can be moved along with the leading door 2, and the intermediate door 3 can be closed and moved without wasteful movement.

It is a top view of the double action type opening-and-closing door concerning the present invention. It is a front view of the double-acting opening / closing door according to the present invention. It is a top view of the state which closed the opening-and-closing door. It is the sectional view on the AA line in FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is CC sectional view taken on the line in FIG. It is the DD sectional view taken on the line in FIG. It is a disassembled perspective view of an opening / closing door. It is operation | movement explanatory drawing which shows opening operation | movement of an opening-and-closing door. It is the EE sectional view taken on the line in FIG. It is a top view of the state which opened the leading door and the intermediate door to the half-open position. It is a partially broken top view which shows the slide lock structure of a leading door. It is a partially broken top view which shows the change of the state of a slide lock structure. It is operation | movement explanatory drawing which shows closing operation | movement of an opening-and-closing door. It is a front view of the double action type opening-and-closing door which concerns on another Example. It is the FF sectional view taken on the line in FIG. FIG. 16 is a cross-sectional plan view illustrating a swinging operation of the intermediate door according to FIG. 15. It is a schematic plan view which shows another Example of a switching piece.

(Example) FIG. 1 thru | or FIG. 14 has shown the Example of the double-acting type | mold door which concerns on this invention. In the present invention, front / rear, left / right, and upper / lower follow the cross arrows shown in FIG. 1 and FIG.

  In FIG. 2, the double-acting opening / closing door includes an opening frame 1 arranged along the left and right sides and the upper part of the opening, a leading door 2 that opens and closes the opening, an intermediate door 3, and a swing door 4. It is comprised with the support structure of the doors 2-4. The door panels 2a, 3a, and 4a of the doors 2 to 4 are each formed of a wood panel, but can be formed of a panel that uses wood, plastic material, and metal material in combination as necessary. The opening frame 1 is provided at the closed end side vertical frame 5, the open end side vertical frame 6, the upper frame 7 that connects the upper parts of the vertical frames 5, 6, and the rear part of the upper frame 7, and swings. It is composed of a membrane plate 8 that defines the closing limit of the door 4. The leading door 2 and the intermediate door 3 are sliding doors that are slidably opened and closed, and can slide back and forth between the closed position shown in FIGS. 2 and 3 and the half-open position.

  As shown in FIG. 1, the half-open position is a state in which the leading door 2 and the intermediate door 3 are opened to the opening limit position and are located on the rear surface side of the swing door 4. The doors 2 to 4 overlap each other. As shown in FIG. 2, the leading door 2 and the intermediate door 3 and the intermediate door 3 and the swing door 4 in the closed position overlap each other by a predetermined dimension. The left-right width of the intermediate door 3 is made to coincide with the left-right width of the swing door 4, and the left-right width of the leading door 2 is set larger than the left-right width of the intermediate door 3 and the swing door 4. Handles 9 for opening and closing the doors 2 to 4 are provided on the front and rear sides of the leading door 2 on the closed end side. In the state where the leading door 2 is opened to the half-open position, the handle 9 is exposed to the side from the closed end of the intermediate door 3 as shown in FIG.

  In order to reciprocately slide the leading door 2 between the closed position and the half-open position, an opening / closing structure is provided in grooves formed in the upper end and the lower end of the door panel 2a. Specifically, a pair of left and right suspension-type first runners 11 and a first roller 12 are assembled inside a groove at the upper end of the door panel 2a. Is fixed. Further, the upper frame 7 of the opening frame 1 is provided with a first guide rail 14 for guiding the first runner 11 to move. The first guide rail 14 is made of an aluminum strip having a C-shaped cross section, and rail walls 15 for moving and guiding a roller 20 of the first runner 11 described later are provided at the front and back of the first guide rail 14 (see FIG. 6). . The left and right length of the first guide rail 14 is set to a length from the closed end of the opening frame 1 to the left and right midway portion of the swing door 4.

  As shown in FIGS. 4 and 8, the first runner 11 is a unit component, and a runner base 17 having an L-shaped cross section and a shaft support that can swing up and down via a support shaft 18 on the base 17. The roller arm 19 is configured to include a roller 20 that is rotatably supported on the swinging tip of the roller arm 19, a spring 21 that moves and urges the roller arm 19, and the like. On the open end side of the runner base 17, an auxiliary roller 22 is provided for smoothing the movement of the leading door 2 to the intermediate door 3 or smoothing the movement of the intermediate door 3 to the swing door 4 ( (See FIG. 4).

  The roller arm 19 is supported by the support shaft 18 so as to be able to swing up and down between an upper operating posture and a lower standby posture, and is urged by a spring 21 to swing toward the operating posture. When the roller arm 19 is in the operating posture, the roller 20 is held at a height that can be suspended by the first guide rail 14, and the lower end side of the roller arm 19 is received by the bottom wall of the runner base 17. The roller 20 of the first runner 11 arranged on the closed end side of the leading door 2 is suspended by the rail wall 15 on the front side of the first guide rail 14 and arranged on the open end side of the leading door 2. The eleven rollers 20 are suspended by the rail wall 15 on the rear side of the first guide rail 14. Therefore, the former roller 20 is pivotally supported on the front side of the roller arm 19, and the latter roller 20 is pivotally supported on the rear side of the roller arm 19. The roller arm 19 is switched to the standby posture at a position immediately before the half-open position. At this time, in order to allow the roller 20 of the first runner 11 disposed on the closed end side to swing downward, the roller arm 19 is attached to the front rail wall 15. A notch 23 is formed (see FIG. 10).

  The first roller 12 is a roller base 26 having an L-shaped cross section, and is rotatably supported via a roller shaft 27 fixed to the standing wall. In this embodiment, seven first rollers 12 are provided as rollers. The base 26 is pivotally supported at regular intervals to form a unit part as a whole. The roller base 26 is disposed between the pair of left and right first runners 11 and fastened in the groove of the door panel 2a. In order to open and close the first roller 12 of the leading door 2 that has been opened from the closed position by the intermediate door 3, guide frames 30 are provided at both left and right ends of the intermediate door 3.

  Similar to the leading door 2, grooves for assembling the opening / closing structure are provided at the upper and lower ends of the door panel 3 a of the intermediate door 3. A second roller 32 is assembled inside the groove at the upper end of the door panel 3a, and a swing rail 33 is fixed to the groove at the lower end. The 2nd roller 32 is the roller base 34 which consists of strips made from aluminum, and is rotatably supported via the roller shaft 35 fixed to the standing wall of the front side. In this embodiment, twelve second rollers 32 are pivotally supported by a roller base 34 at regular intervals to form a unit part as a whole. In the state where the intermediate door 3 is located at the closed position, the second roller 32 on the open end side among the 12 second rollers 32 is supported by the second guide rail 52 of the swing door 4 (see FIG. 5). In addition, a regulating rib 31 provided on the inner surface upper portion of the guide frame 30 on the closed end side is supported on the upper surface of the first roller 12 located on the open end side (see FIGS. 4 and 6). That is, both ends of the closed intermediate door 3 are supported by the leading door 2 and the swing door 4.

  A stopper pin (first contact body) 36 is fixed to the standing wall on the open end side of the roller base 34. The pair of left and right guide frames 30 described above are formed by cutting the rear wall structure of the roller base 34, and a support wall 37 that supports the lower surface of the first roller 12 is formed at the lower end of the front portion. (See FIG. 6). A switching piece 38 for switching the roller arm 19 to the standby posture is fixed on the upper surface of the guide frame 30 on the closed end side of the intermediate door 3. This switching piece 38 also serves as an interlocking structure when the intermediate door 3 is accompanied with the leading door 2 and opened. By supporting the first roller 12 with the guide frame 30 provided in the intermediate door 3, the leading door 2 can be supported by the intermediate door 3, and in the half-open position, all of the weight of the leading door 2 can be supported by the intermediate door 3. I support it.

  The leading door 2 at the time of opening and closing is a first anti-vibration structure provided between the lower part of the intermediate door 3 and the lower part of the leading door 2, and vibration in the front-rear direction is restricted. The first anti-vibration structure is arranged at the lower part of the sliding surface side of the leading door 2 of the intermediate door 3 and the anti-vibration rail 13 which is arranged below the leading door 2 and opens downward. And a guide structure for guiding the transition.

  6 and 8, the guide structure is disposed at the closed end of the bottom wall of the anti-vibration base 40 and the middle part of the left and right, and two anti-vibration rollers 41 that are rotatably supported around the vertical axis. The bracket 42 folded on the anti-vibration base 40 is configured as a unit component with five tilting restriction rollers 43 that are rotatably supported around the front and rear axes. The swing rail 13 is opened and closed together with the leading door 2 with the front and rear walls sandwiching the swing roller 41 in the front and rear directions, while the upper wall of the swing rail 13 is guided to be transferred on the upper peripheral surface of the tilt regulating roller 43. The

  In a state in which the leading door 2 is operated in the opening / closing direction with respect to the intermediate door 3, the leading door 2 is tilted by an opening / closing operation force because the handle 9 is provided below the center of the door panel 2a. It gets jerky. In particular, when the user is seated in a wheelchair, the operation position is lower than when the standing user operates, so that a tilting moment easily acts on the leading door 2. In order to eliminate such irregular movement accompanying the tilting of the leading door 2 and to open and close the leading door 2 smoothly, the upper wall of the swing rail 13 is received by the five tilting restriction rollers 43. ing. The leading door 2 is basically suspended by the first guide rail 14 via the first runner 11 so that the upper surface of the door is maintained in a horizontal position, and the leading door 2 receives the tilting moment as described above. Is started to tilt, the upper wall of the swing rail 13 is received by the tilt regulating roller 43.

  As shown in FIG. 8, upper and lower door supports 46 and 47 for receiving the open end side of the leading door 2 that has been opened to the half open position are fixed to the open end side of the intermediate door 3. It is. Each door body 46 and 47 is formed of a steel plate, and the contact walls 46 a and 47 a are integrally formed in a state of projecting to the open / close region of the leading door 2. In a state where the intermediate door 3 is opened to the half-open position, a magnet catch 48 is fixed to the vertical frame 6 on the open end side facing the contact wall 46a of the upper door body 46 (see FIG. 12). .

  When the leading door 2 is closed from the half-open position by magnetically attracting the contact wall 46a with the magnet catch 48, the intermediate door 3 accompanies the leading door 2 and moves to the closing side, or the intermediate door 3 is free The movement toward the closing side can be restricted by the magnet catch 48. Therefore, after the leading door 2 slides in advance, the intermediate door 3 can be slid along the leading door 2 toward the closed position. The interlocking structure for sliding the intermediate door 3 will be described later. As described above, the contact wall 46 a of the door holder 46 and the magnet catch 48 constitute a catch structure that restricts the closing movement of the intermediate door 3.

  The swing door 4 is supported by a hinge 51 fixed to the vertical frame 6 on the open end side so as to be swingable and openable. The swinging door 4 that swings open and close includes a closed position (state indicated by a solid line in FIG. 1) where the entire swinging door 4 fits inside the opening frame 1, and the entire swinging door 4 is centered on the hinge axis. It is possible to swing between a fully open position (a state indicated by an imaginary line in FIG. 1) that opens and swings 90 degrees or more. A second guide rail 52 is provided at the upper end of the door panel 4a of the swing door 4 so that the intermediate door 3 can be opened and closed. The second guide rail 52 is made of an aluminum strip, and a rail wall 53 that supports the second roller 32 is integrally formed at the lower end of the second guide rail 52.

  A stopper piece (second contact body) 54 for receiving the stopper pin 36 described above is fixed to the swinging tip of the upper surface of the swinging door 4 so as to protrude on the transition locus of the intermediate door 3. (See FIGS. 7 and 8). The stopper pin 36 and the stopper piece 54 constitute a stopper that defines the movement limit in the closing direction of the intermediate door 3. A switching piece 56 that contacts the roller arm 19 and switches the first runner 11 on the open end side to the standby posture is fixed to the swing base end of the top surface of the swing door 4.

  A door body 57 that receives the end face of the open end of the intermediate door 3 that has been opened to the half-open position is fixed to the end face of the swing door 4. The door body 57 is formed of a steel plate, and a contact wall 57a is integrally formed so as to protrude from the open / close region of the intermediate door 3. A second anti-vibration structure is provided between the lower part of the swing door 4 and the lower part of the intermediate door 3 to restrict the vibration of the intermediate door 3 in the front-rear direction. As shown in FIG. 6, the second rocking structure is supported rotatably around the vertical axis by the rocking rail 33 of the intermediate door 3 described above and the holder 58 fixed to the lower part of the rocking door 4. The anti-static roller 59 is configured to guide the transfer of the anti-static rail 33 by the anti-static roller 59.

  In the process of opening the leading door 2, the regulation ribs 31 provided on the guide frame 30 on the closed end side of the intermediate door 3 are successively supported by the first roller 12 that moves together with the leading door 2. Further, in the process in which the leading door 2 and the intermediate door 3 are simultaneously opened toward the half-open position, the second roller 32 of the intermediate door 3 is successively supported by the second guide rail 52 provided on the swing door 4. Thus, the intermediate door 3 is supported by the swing door 4. Furthermore, in the state where the leading door 2 and the intermediate door 3 are opened to the half-open position, all the weights of the leading door 2 and the intermediate door 3 are supported by the swing door 4.

  The leading door 2 and the intermediate door 3 that have been opened to the half-open position are swing-opened to the fully-open position along with the swing door 4, as indicated by an imaginary line in FIG. As described above, when the swing door 4 swings, a slide lock mechanism is provided between the swing door 4 and the leading door 2 in order to prevent the leading door 2 from sliding from the swing door 4 to the closing side. Provided.

  As shown in FIG. 12, the slide lock mechanism includes a lock arm 61 that is pivotally supported by a switching piece 56 on the swing base end side of the swing door 4 so as to be able to swing back and forth, and a leading door corresponding to the lock arm 61. 2, an engagement piece 62 provided on the second side, and a spring 63 that swings and urges the lock arm 61. The lock arm 61 is formed of a bowl-shaped press-formed product, and one end of the lock arm 61 is supported by a shaft 64 provided on the switching piece 56 so as to be swingable back and forth. A lock piece 65 that engages with the previous engagement piece 62 is bent downward at the front edge of the rocking tip of the lock arm 61, and the film 8 is in contact with the rear edge of the rocking tip. The pawl 66 is bent downward.

  As shown in FIG. 13, the lock arm 61 oscillated and biased by the spring 63 has a locking position where the contact claw 66 advances rearward from the lower surface of the switching piece 56, and a contact claw as shown in FIG. 66 is received by the membrane plate 8, and the entire lock arm 61 can be displaced to the unlocking position in which it retreats to the lower surface of the switching piece 56. The engaging piece 62 is bent forward using a standing wall on the rear side of the runner base 17, and in the state where the leading door 2 and the swinging door 4 are opened and swinging, the engaging piece 62 is engaged. The slide piece 62 and the lock piece 65 intersect with each other so that the engagement piece 62 can be received by the lock piece 65. Therefore, the leading door 2 can be closed and locked so as not to slide. 6 and 11, reference numeral 69 is a buffer body that prevents the leading door 2 from colliding with the membrane plate 8 when the swing door 4 swings back from the fully open position to the closed position. In FIG. 12, reference numeral 70 denotes a rubber mat fixed to the membrane plate 8 in order to receive the contact claw 66.

  Next, the operation of each member when opening and closing the double-acting door will be described. As shown in FIG. 3, when the leading door 2, the intermediate door 3, and the swing door 4 are in the closed state, the leading door 2 is suspended by the first guide rail 14 via the first runner 11. Yes. In this state, when the leading door 2 is opened by holding the handle 9, only the leading door 2 is slid open as shown in FIG. 9A, and the roller arm 19 on the closed end side is provided on the intermediate door 3. It contacts the switching piece 38. Meanwhile, the first roller 12 moves in the opening direction while being guided by the guide frame 30 provided on the intermediate door 3. After the roller arm 19 contacts the switching piece 38, the intermediate door 3 moves along with the leading door 2 and moves in the opening direction. That is, the roller arm 19 and the switching piece 38 also serve as an interlocking structure when the leading door 2 and the intermediate door 3 are opened.

  When the leading door 2 is further opened from the above state, the second roller 32 of the intermediate door 3 moves in the opening direction in a state where the second roller 32 is transferred to the second guide rail 52 of the swing door 4. Then, as shown in FIG. 9B, immediately before the leading door 2 and the intermediate door 3 reach the half-open position, the left and right roller arms 19 contact the switching pieces 38 and 56 provided on the left and right sides of the swing door 4. I win. When the leading door 2 is moved from this state to the half-open position, the intermediate door 3 is received by the door holder 57 of the vertical frame 6 and the door holder 46 is adsorbed by the magnet catch 48. At the same time, as shown in FIG. 10, the left and right roller arms 19 are switched to the standby posture by the switching pieces 38 and 56. At this time, the roller 20 on the open end side is separated from the first guide rail 14 and can swing downward without being obstructed by the rail wall 15. Further, although the roller 20 on the closed end side is located inside the first guide rail 14, it is in a state of facing the notch 23 formed in the rail wall 15, so that it is obstructed by the rail wall 15. It is swung downward and held in a standby posture.

  As shown in FIG. 1, in the state where the leading door 2 and the intermediate door 3 are opened to the half-open position, the opening width B2 at which the opening can enter and exit exceeds half of the inner opening width B1 of the opening frame 1. ing. For example, when the inner opening width B1 is 120 cm, the opening width B2 that can be entered and exited is 63 cm. Therefore, it is possible to easily enter and exit the opening without having to swing the swing door 4 open. When the swing door 4 is opened and swung while seated in the wheelchair, the swing door 4 is opened in a state in which the wheelchair is opposed to the half-opened opening portion and close to the doors 2 to 4. Since it can be operated, the door can be opened and closed more easily, and the wheelchair can be easily moved in and out, and the usability of the double-acting door can be improved.

  When the leading door 2 is opened to the half-open position, the handle 9 is pulled forward to release the attracted state of the magnet catch 48 and the door holder 46, as shown by an imaginary line in FIG. The leading door 2 and the intermediate door 3 can accompany the swing door 4 and swing open toward the fully open position. In this state, most of the opening can be opened, so that the wheelchair can be easily moved in and out. In addition, the assistant can easily enter and exit the opening while holding the wheelchair user.

  When the swing door 4 swings open and the contact claw 66 moves away from the rubber mat 70 as shown in FIG. 13, the lock arm 61 is pushed out by the spring 63 and switched to the locked position, and the lock piece 65 is led. It intersects with the engagement piece 62 provided on the door 2. Therefore, the leading door 2 can be locked by the lock arm 61 so that it cannot slide. Therefore, the leading door 2 and the intermediate door 3 do not come out of the swing door 4 when the swing door 4 is swingably opened and closed.

  When the swinging door 4 in the fully open position is returned to the closed position, as shown in FIG. 14A, the swinging door 4 is accommodated again in the opening frame 1 and the door body 46 of the intermediate door 3. Is captured by the magnet catch 48. Therefore, only the leading door 2 can be opened in the closing direction while the intermediate door 3 is held in the half-open position. Soon after the leading door 2 starts to move in the closing direction, the restraint of the roller arm 19 by the switching pieces 38 and 56 is released, so that the first runner 11 is returned to the upper operating posture by the spring 21 and is swung. Is guided by the first guide rail 14.

  As shown in FIG. 14B, when more than half of the leading door 2 is slid from the intermediate door 3 to the closed side, the roller arm 19 on the open end side is switched to the switching piece on the closed end side of the intermediate door 3. It touches the side edge of 38. Only in this state, the intermediate door 3 accompanies the leading door 2 and moves to the closing side, and accordingly, the attracted state of the magnet catch 48 and the door holder 46 is released. Thus, the roller arm 19 and the switching piece 38 also serve as an interlocking structure when closing the leading door 2 and the intermediate door 3.

  Subsequently, by closing the leading door 2, as shown in FIG. 14C, the leading door 2 and the intermediate door 3 can be moved to the closed position, and the opening can be closed. The intermediate door 3 in the closed position does not move in the opening direction because the switching piece 38 provided on the closed end side is engaged with the roller arm 19. However, in the closed intermediate door 3, the second roller 32 on the open end side is supported by the second guide rail 52 of the swing door 4, and the guide frame 30 on the closed end side of the first roller 12 of the leading door 2. Since it is only supported by the upper surface, there is room for movement in the closing direction. For this reason, if only the intermediate door 3 is intentionally closed, the swing door 4 may be detached. However, even if the intermediate door 3 is intentionally closed, the stopper pin 36 provided on the open end side of the intermediate door 3 is received by the stopper piece 54 provided on the swing door 4, so that the intermediate door 3 is further moved. It does not move and can maintain a proper closed state.

  15 to 17 show another embodiment of the double-acting opening / closing door according to the present invention. The open / close door according to this embodiment has basically the same structure as the open / close door described with reference to FIGS. 1 to 14, except that a suspended runner-type second runner 73 is provided on the closed end side of the intermediate door 3 to open the opening frame 1. The third guide rail 74 provided in the second embodiment differs from the previous embodiment in that the second runner 73 is guided to move.

  As shown in FIG. 16, the second runner 73 includes a bracket 75 that is fixed to the end face of the intermediate door 3 and a roller 77 that is rotatably supported by a shaft 76 that is fixed to the bracket 75. The third guide rail 74 is made of an aluminum strip, and a rail wall 78 that supports the roller 77 is integrally provided at a lower portion thereof. As shown in FIG. 16, the third guide rail 74 is disposed adjacent to the front side of the first guide rail 14, and as shown in FIG. 17, the end 74 a on the open end side of the intermediate door 3. It is located near the half-open position. Thus, the second runner 73 is guided by the third guide rail 74 so as to be able to move between the closed position and the half-open position of the intermediate door 3.

  In the state where the intermediate door 3 is opened to the half-open position, a runner opening 80 that allows the second runner 73 to enter and exit in the front-rear direction is provided in the opening frame 1 facing the second runner 73 in the front-rear direction. The third guide rail 74 is formed so as to connect the groove portion embedded therein. Accordingly, as shown by an imaginary line in FIG. 17, when the leading door 2 and the intermediate door 3 follow the swing door 4 and swing open / close, the second runner 73 enters and exits from the runner opening 80, and the swing door 4 can be accompanied by the swing motion. Note that the leading door 2 is not shown in FIG.

  In order to prevent the appearance of the open / close door from being damaged by the runner opening 80 formed in the opening frame 1, a cover body 81 that covers the runner opening 80 from the outer surface side is provided at the swing front end of the swing door 4. The cover body 81 is formed of a rectangular magnetic metal plate, and is magnetically attracted by a magnet catch 82 disposed inside the runner opening 80. Since the structure other than the above is the same as that of the embodiment described above, the same reference numerals are given to the same members, and the description thereof is omitted.

  As described above, when the closed end side of the intermediate door 3 is supported by the second runner 73, the intermediate door 3 can be opened and closed more smoothly between the closed position and the half-open position. Further, since at least one second roller 32 is provided at the closed end of the intermediate door 3, the support structure of the intermediate door 3 can be greatly simplified.

  In the double-acting opening / closing door described with reference to FIGS. 1 to 14, the first runner 11 on the closed end side of the leading door 2 can be configured by a suspension wheel similar to the second runner 73. In that case, the roller 20 of the first runner 11 is rotatably supported by a bracket fixed to the leading door 2. Further, in a state where the leading door 2 and the intermediate door 3 are closed, the first runner 11 so that the roller 20 of the first runner 11 on the closed end side of the leading door 2 and the roller 77 of the second runner 73 overlap each other. Place. In addition, the first runner 11 of the leading door 2 is formed in the first guide rail 14 and the opening frame 1 on the front side of the rail 14 by forming an opening in the front-rear direction continuous with the runner opening 80 and opening it to a half-open position. Can be swung open from the runner opening 80 together with the second runner 73 of the intermediate door 3.

The above double-acting door can be implemented in the following form.
The first runner 11 provided on the closed end side of the leading door 2 is composed of a bracket fixed to the leading door 2 and a roller 20 rotatably supported by the bracket.
The first runner 11 provided on the closed end side is guided by a first guide rail 14 so as to be able to move between a closed position and a half-open position,
In a state where the leading door 2 is opened to the half-open position, an opening continuous with the runner opening 80 is provided in the first guide rail 14 and the opening frame 1 facing the first runner 11 provided on the closed end side in the front-rear direction. And
When the leading door 2 and the intermediate door 3 accompany the swing door 4 to swing open and close, the second runner 73 provided on the intermediate door 3 and the first runner 11 provided on the closed end side of the leading door 2 are Double-acting open / close door that can enter and exit through the runner opening 80

  FIG. 18 shows another embodiment of the switching piece 38 for switching the first runner 11 to the standby posture. In this case, the switching piece 38 is formed in an L shape by the first arm 91 and the second arm 92 which are orthogonal to each other, and a swinging shaft 93 fixed to the swinging door 4 at the intersection of both arms 91 and 92 is rocked. The switch piece 38 is movably supported by a spring 94. The swing door 4 is provided with stopper pins 95 and 96 that define the swing limit of the switching piece 38. The first arm 91 is provided with a contact piece 97 for switching the roller arm 19 on the closed end side to the standby posture. The spring 94 is composed of a compression spring, and the switching piece 38 can be held at the standby position shown in FIG. 18A and the operating position shown in FIG.

  When the leading door 2 is in the closed position, the switching piece 38 is in a standby posture in which the second arm 92 intersects the transition locus of the roller arm 19 as shown in FIG. When the leading door 2 and the intermediate door 3 are opened from this state to the vicinity of the half-open position, the roller arm 19 on the open end side comes into contact with the second arm 92 and resists the biasing force of the spring 94 so as to switch the switching piece 38. Is swung in the clockwise direction. When the switching piece 38 swings 45 degrees or more, the central axis of the spring 94 exceeds the dead point, so that an urging force in the opposite direction acts on the switching piece 38 and the switching piece 38 is rapidly The second arm 92 is received by the stopper pin 96 by swinging to the operating position shown in FIG.

In a state where the switching piece 38 is switched to the operating position, the first arm 91 intersects the transition locus of the roller arm 19 on the closed end side. Therefore, when the leading door 2 and the intermediate door 3 are opened to the half-open position, the roller arm 19 on the closed end side comes into contact with the contact piece 97 of the first arm 91 and enters the standby position as shown in FIG. Switched. When the leading door 2 and the intermediate door 3 are closed from the half-open position, the roller arm 19 on the open end side contacts the first arm 91, and the switching piece 38 is switched to the standby posture shown in FIG. To reset. Even in this case, if the switching piece 38 accompanies the roller arm 19 on the open end side and swings 45 degrees or more, the center axis of the spring 94 exceeds the dead point, so the switching piece 38 is in the opposite direction. Swings rapidly under the urging force.
As described above, when the switching pieces 38 and 56 are assembled to the swing door 4, the left and right positions of the switching pieces 38 and 56 are more uneven than when both the switching pieces 38 and 56 are provided on the intermediate door 3. And the deviation of the tilting timing of the left and right roller arms 19 can be reduced.

  In the above embodiment, the roller arm 19 and the switching piece 38 serve as an interlocking structure when the leading door 2 and the intermediate door 3 are closed, but this is not necessary. For example, a first interlocking body and a second interlocking body made of protrusions are provided on the sliding surfaces of the leading door 2 and the intermediate door 3, and the interlocking bodies are in contact with each other, so that the intermediate door 3 is connected to the leading door. 2 can be opened and closed in conjunction with the opening and closing movement. A lock can be provided on the contact surface between the vertical frame 5 on the closed end side and the leading door 2 to lock the leading door 2 so that the opening operation cannot be performed. As a lock in that case, a sickle lock, a cylinder lock, a latch, or the like can be applied.

  The catch structure for holding the intermediate door 3 in the closed state in the half-open position does not need to be configured with a magnet catch, but may be configured with a catch body that can be elastically deformed, and a pin or protrusion that is engaged and captured by the catch body. it can. The 1st runner 11 and the 2nd runner 73 can be constituted as a runner provided with a plurality of rollers.

1 Opening Frame 2 Leading Door 3 Intermediate Door 4 Swing Door 11 First Runner 12 First Roller 14 First Guide Rail 19 Roller Arm 20 Roller 21 Spring 30 Guide Frame 32 Second Rollers 38 and 56 Switching Piece 52 Second Guide Rail

Claims (9)

A double-acting opening / closing door that has a sliding door and a swinging door, and that can be opened to the fully open position by accompanying the swinging door that is opened to the half-open position,
The sliding door is composed of a leading door (2) and an intermediate door (3) that is opened and closed by the leading door (2).
The leading door (2) includes a first suspended runner type runner (11) guided by a first guide rail (14) provided on the opening frame (1), and a guide frame (1) provided on the intermediate door (3). 30) and a first roller (12) guided to open and close,
The intermediate door (3) is provided with a second roller (32) that is opened and closed by a second guide rail (52) provided on the swing door (4).
The first runner (11) in the half-open position is detached from the first guide rail (14) and stored in the upper part of the leading door (2), and the first roller (12) is a guide frame of the intermediate door (3). Supported by (30),
The second roller (32) of the intermediate door (3) in the half-open position is supported by the second guide rail (52) of the swing door (4),
A double-acting opening / closing door characterized in that the opening width (B2) of the opening in the state of opening to the half-open position exceeds half the value of the inner opening width (B1) of the opening frame (1) . The first runner (11) provided on the left and right of the leading door (2) is supported by a roller arm (19) that can swing up and down between an upper operation posture and a lower standby posture, and the arm (19 ) And a spring (21) that urges and moves the roller arm (19) toward the operating posture.
The intermediate door (3) and the swing door (4) are each provided with a switching piece (38, 56) that contacts the roller arm (19) and switches the first runner (11) to the standby posture. ,
In the state where the roller arm (19) in the middle of opening is in contact with the switching piece (38) of the intermediate door (3), the intermediate door (3) can be opened by the leading door (2),
The double-acting opening and closing according to claim 1, wherein the roller arm (19) is switched to the standby position by the switching piece (38, 56) while the leading door (2) and the intermediate door (3) move to the half-open position. door. A suspension wheel type second runner (73) guided by a third guide rail (74) provided on the opening frame (1) and the second roller (32) are provided on the intermediate door (3). And
The second runner (73) is disposed on the closed end side of the intermediate door (3) and is guided by the third guide rail (74) so as to be able to move between the closed position and the half-open position,
In a state where the intermediate door (3) is opened to the half-open position, a runner opening (80) that allows the second runner (73) to enter and exit from the opening frame (1) facing the second runner (73) in the front-rear direction. ) Is formed,
The second runner (73) can enter and exit from the runner opening (80) when the leading door (2) and the intermediate door (3) swing with the swing door (4) to open and close. Double-acting door. A cover body (81) formed of a magnetic metal plate and covering the runner opening (80) from the outer surface side is provided at the swing tip of the swing door (4).
The double-acting door according to claim 3, wherein a magnet catch (82) for magnetically attracting the cover body (81) is provided inside the runner opening (80). A slide lock mechanism is provided between the swing door (4) and the leading door (2) to lock the leading door (2) so that it cannot slide when the swing door (4) swings,
The slide lock mechanism includes a lock arm (61) that is supported so as to be swingable back and forth and can be displaced between a lock position and an unlock position, a lock piece (65) provided on the lock arm (61), and a lock piece (65). Corresponding to the engagement door (62) provided on the leading door (2) side, and a spring (63) that urges the lock arm (61) to swing toward the lock position.
In the state where the swing door (4) is closed, the lock arm (61) is received by the inner membrane plate (8) of the opening frame (1) and switched to the unlocked position.
In a state in which the swing door (4) moves open, the lock arm (61) is switched to the lock position by the spring (63), and the lock piece (65) and the engagement piece (62) are engaged, and the leading door The double-acting opening / closing door according to any one of claims 2 to 4, wherein (2) can be closed and locked so as not to slide. A stopper is provided between the intermediate door (3) adjacent to the front and rear in the closed position and the swing door (4) to limit the movement limit of the intermediate door (3) in the closing direction.
The stopper is provided near the open end of the intermediate door (3) and the first contact body (36) provided near the swinging tip of the swinging door (4). The double-acting type opening / closing door according to any one of claims 2 to 5, comprising a second contact body (54) to be received. Between the lower part of the intermediate door (3) and the lower part of the leading door (2), there is provided a first anti-vibration structure that restricts vibration in the front-rear direction of the leading door (2),
The second anti-vibration structure is provided between the lower part of the swing door (4) and the lower part of the intermediate door (3) to restrict the vibration of the intermediate door (3) in the front-rear direction. Double-acting door as described in any one. A first anti-vibration structure is arranged at the lower part of the leading door (2) and opens downward, and an anti-vibration rail (13) is arranged at the lower part of the intermediate door (3) to guide the movement of the anti-vibration rail (13). And a guide structure that
The guide structure includes a plurality of anti-roll rollers (41) rotatably supported around the longitudinal axis and a plurality of tilt regulating rollers (43) rotatably supported around the front and rear axes. The double-acting opening / closing door according to claim 7, which is configured. A door body (46) for receiving the open end of the leading door (2) that has been opened to the half-open position is fixed to the cuff surface of the open end side of the intermediate door (3),
A catch structure for restricting the closing movement of the intermediate door (3) is provided between the vertical frame (6) on the open end side of the opening frame (1) and the door body (46).
9. Double acting according to any one of claims 2 to 8, wherein the leading door (2) can be closed and moved prior to the intermediate door (3) in a state of closing the leading door (2) and the intermediate door (3). Open door.

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