Automatic door

Abstract

To make it possible for a fully open automatic door configured such that a slide door travels along a FIX door during a normal opening / closing operation, and the FIX door and the slide door are rotated in an outdoor direction during a fully open operation, to prevent the positional deviation of upper and lower turning shafts of the slide door for stabilizing the operation at the time of rotation.SOLUTION: A sliding door upper part rotating shaft locking part and a sliding door lower part locking part for locking a sliding door upper part rotating shaft and a sliding door lower part rotating shaft at respective specified positions at the time of full opening are provided.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This invention relates to an automatic door, and more specifically to an automatic door that has a fixed door and a sliding door installed at an entrance, with the sliding door suspended so that it can run alongside the fixed door to open and close the entrance, and that rotates (swings) the fixed door and the sliding door to fully open the entrance as needed. [Background technology]

[0002] In the automatic door of Patent Document 1, the sliding door normally opens and closes within a normal opening angle along with the fixed door, but in the event of an emergency such as a fire or when loading or unloading large luggage, the sliding door can be slid beyond the normal opening angle to release the rotation lock mechanisms of both the sliding door and the fixed door. In this state, both doors, which are overlapped in the width direction, can be manually pressed from inside the room, allowing both doors to rotate (swing) approximately 90 degrees around their respective support shafts (pins) as fulcrums. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 2527353 Summary of the Invention [Problem to be solved by the invention]

[0004] In the automatic door of Patent Document 1, the upper and lower pivot pins that are the pivot center of the sliding door are fixed to the sliding door that opens and closes. During the full-open operation, the sliding door moves to a fully open position that is slid beyond the normal opening degree and stops there, but since there is no means for locking the upper and lower pivot pins at the predetermined fully open position, depending on the way the sliding door is pushed when manually rotating it, the positions of the upper and lower pivot pins may shift, causing the sliding door to tilt and rub against the floor, making it difficult to rotate. Nevertheless, in the past, such a phenomenon rarely occurred because the size and weight of the doors were not so large.

[0005] The automatic door of Patent Document 1 is often used in car dealerships, and the full-opening operation is used when changing cars in the store, but due to the increase in tall cars, the demand for full-opening automatic doors with large door heights, door widths, and door weights for fixed and sliding doors has been increasing recently. When a large fixed door and sliding door were installed on the same type of automatic door as Patent Document 1 and an experiment was conducted, it was found that the position of the upper and lower rotation axes of the sliding door is easily shifted when it is rotated manually, and in the worst case, the sliding door cannot be rotated. In addition, when an experiment was conducted with a means for locking only the rotation axis at the top of the sliding door at a predetermined fully open position, it was found that if a strong upper rotation axis locking mechanism is added so that the position of the upper and lower rotation axes does not shift even when the large door is rotated manually, it becomes difficult to manually move the sliding door from the fully open position to the closing direction and return it to the normal opening and closing position in the event of a power outage.

[0006] In view of the above circumstances, in order to eliminate the above problems, the automatic door of the present invention is provided with an upper sliding door pivot shaft locking part that locks the upper sliding door pivot shaft at a predetermined position in the fully open position, and a lower sliding door pivot shaft locking part that locks the lower sliding door pivot shaft at a predetermined position. As a result, even when a larger fixed door and sliding door than conventional ones are used, the upper and lower pivot shafts of the sliding door do not shift from their positions when the fixed door and sliding door are manually rotated, allowing for a smooth fully opening operation, and also allowing for relatively easy manual movement of the sliding door from the fully open position to the closing position in the event of a power outage, thereby providing an automatic door of a highly reliable and operable type. [Means for solving the problem]

[0007] In order to solve the above problems, the automatic door of the invention described in claim 1 has a fixed door and a sliding door disposed between left and right vertical frames, and is capable of a fully opening operation in addition to normal opening and closing operations, and during normal opening and closing operations, the sliding door opens and closes along the fixed door in a range from a closed position to a normally open position, and during fully opening operations, when the sliding door moves further in the opening direction from the normally open position to a fully open position, both the restriction on rotation of the fixed door by the fixed door rotation lock part and the restriction on rotation of the sliding door by the sliding door rotation lock part are released, allowing the fixed door to rotate around the fixed door upper rotation shaft and the fixed door lower rotation shaft, and the automatic door which can rotate the sliding door around the sliding door upper rotation shaft and the sliding door lower rotation shaft is equipped with an upper sliding door rotation shaft locking part which positions the upper sliding door rotation shaft at a predetermined position, and a lower sliding door rotation shaft locking part which positions the lower sliding door rotation shaft at a predetermined position in the fully open position.

[0008] As a result, in an automatic door which can be fully opened by rotating in addition to the normal opening and closing operations, the door is equipped with an upper sliding door pivot shaft locking portion which locks the upper sliding door pivot shaft in a predetermined position, and a lower sliding door pivot shaft locking portion which locks the lower sliding door pivot shaft in a predetermined position.By doing so, even when using a door which is larger than conventional doors (higher, wider, heavier), the positions of the upper and lower pivot shafts will not shift when the sliding door is manually rotated, allowing for a stable fully opening operation.

[0009] The automatic door of the invention described in claim 2 differs from the invention described in claim 1 in that the sliding door is supported rotatably around the sliding door lower pivot shaft fixed to the lower part of the sliding door by a vibration stopper that moves along the lower rail as the sliding door is opened or closed, and the sliding door lower pivot shaft locking part locks the sliding door lower pivot shaft in a predetermined position by locking the vibration stopper at a predetermined position within the lower rail in the fully open position.

[0010] As a result, the lower pivot shaft of the sliding door is indirectly locked by locking the anti-sway bar, which has ample space around it, rather than directly locking the lower pivot shaft of the sliding door due to space limitations. This makes it possible to prevent the lower pivot shaft of the sliding door from shifting out of position when the sliding door is rotated using a relatively simple and inexpensive mechanism, enabling stable full-opening operation.

[0011] The automatic door of the invention described in claim 3 is different from the invention described in claim 2 in that the sliding door lower pivot shaft engaging portion is arranged within the lower rail near the vertical frame on the fixed door side, and is equipped with a stopper portion that restricts further movement of the sway stopper in the opening direction and stops it at a predetermined position when the sliding door moves to the fully open position, and a leaf spring that restricts movement of the sway stopper in the closing direction at the fully open position and engages it at a predetermined position.

[0012] This makes it possible, by simply adding one leaf spring and making some changes to the shape of the existing anti-sway and anti-sway stopper, to prevent the lower rotation axis of the sliding door from shifting out of position when the sliding door is rotated, thereby achieving a stable full-opening operation.

[0013] The automatic door of the invention described in claim 4 is different from the invention described in claim 3 in that the anti-sway plate has a concave portion and the leaf spring has a convex portion, and when in the fully open position, the concave portion and the convex portion engage with each other, thereby engaging the anti-sway plate with the leaf spring.

[0014] This is an inexpensive and stable method that utilizes the elasticity of the leaf spring, and prevents the lower pivot shaft of the sliding door from shifting in position when the sliding door is rotated, thereby achieving a stable full-opening operation.

[0015] The automatic door of the invention described in claim 5 differs from the invention described in claim 1 in that the sliding door is rotatably supported around the sliding door upper pivot shaft fixed to its upper part by a hanger part that moves along an upper rail as the sliding door is opened or closed, and the sliding door upper pivot shaft locking part locks the sliding door upper pivot shaft in a predetermined position by locking the hanger part at a predetermined position on the upper rail in the fully open position.

[0016] As a result, if an attempt was made to engage the upper pivot shaft of the sliding door directly, the locking mechanism would tend to become complicated and there would be significant space constraints, but by engaging the hanger part, which has more space around it and allows for greater freedom in the locking method, the upper pivot shaft of the sliding door is indirectly locked. This means that a relatively simple and inexpensive mechanism can be used to prevent the upper pivot shaft of the sliding door from shifting position when the sliding door is rotated, enabling a stable full-opening operation.

[0017] The automatic door of the invention described in claim 6 is different from the invention described in claim 5 in that the sliding door upper pivot shaft locking portion is equipped with an attraction plate arranged on the side of the hanger portion closer to the vertical frame on the fixed door side, and a magnet arranged in a position opposite the attraction plate near the vertical frame on the fixed door side, and the attraction plate is attracted to the magnet when in the fully open position.

[0018] This simple mechanism of simply attaching the suction plate of the hanger to the magnet near the vertical frame prevents the upper rotation axis of the sliding door from shifting when the sliding door rotates, achieving a stable full-open operation. Also, since the suction plate can be relatively easily released from the magnet by tilting it relative to the magnet, the sliding door can be easily moved manually from the full-open position to the normal open / close position even during a power outage.

[0019] According to a seventh aspect of the present invention, in relation to the sixth aspect of the present invention, the suction plate is fixed to the hanger portion via a damper portion.

[0020] This makes it possible to prevent the magnet from being damaged by the impact when the attraction plate is attracted to the magnet, and also to reduce the impact noise caused when the attraction plate is attracted to the magnet.

[0021] The automatic door of the invention described in claim 8 is different from the automatic door of any of claims 1 to 7, further comprising a full open switch to be operated, and when the full open switch is turned ON during normal opening and closing operation, the sliding door moves to the fully open position by the drive of a motor regardless of the position of the sliding door and stops there, and when the user rotates either the fixed door or the sliding door, the drive of the motor is maintained in a stopped state, and when the user subsequently returns both the fixed door and the sliding door to their positions before the rotation and then turns OFF the full open switch, the automatic door of any of claims 1 to 7 is characterized in that the automatic door of the invention described in any of claims 1 to 7, further comprising a full open switch to be operated, and when the full open switch is turned ON during normal opening and closing operation, the drive of the motor is maintained in a stopped state, and when the user subsequently returns both the fixed door and the sliding door to their positions before the rotation and then turns OFF the full open switch, the automatic door of

[0022] This allows automatic doors that can be fully opened by rotating in addition to the normal opening and closing operations, and when the full-open switch is turned on, the motor drives the sliding door to the fully open position, and the upper and lower sliding door rotation shafts are locked in place by the upper and lower sliding door rotation shaft locking parts. This makes it difficult for the upper and lower sliding door rotation shafts to shift position when the sliding door is rotated manually, so stable full-open operation is possible even when using doors that are taller, wider, and heavier than before. Moving the sliding door in the closing direction while either the fixed door or the sliding door is rotating not only causes malfunctions but is also dangerous, so the motor drive remains stopped. When the full open switch is turned OFF after all the fixed doors and sliding doors have been returned to their pre-rotation positions, the sliding door will move from the fully open position in the closing direction due to the drive of the motor, which releases the locking of the upper and lower sliding door pivot shafts at their designated positions by the upper and lower sliding door pivot shaft locking parts, allowing the door to move further in the closing direction due to the drive of the motor.

[0023] In the automatic door of the invention described in claim 9, compared to the inventions described in any of claims 1 to 7, even if a user manually moves the sliding door to the fully open position during a power outage, the sliding door upper pivot shaft and the sliding door lower pivot shaft are positioned at predetermined positions by the sliding door upper pivot shaft locking portion and the sliding door lower pivot shaft locking portion, and when the fixed door and the sliding door are rotated and then returned to their pre-rotation states and the sliding door is manually moved in the closing direction, the locking of the sliding door upper pivot shaft and the sliding door lower pivot shaft by the sliding door upper pivot shaft locking portion and the sliding door lower pivot shaft locking portion are both released.

[0024] This allows automatic doors to open fully by rotating in addition to the normal opening and closing action. Even if the user manually moves the sliding door to the fully open position during a power outage, the upper and lower sliding door pivot shafts are locked in their respective predetermined positions by the upper and lower sliding door pivot shaft locking parts. This makes it difficult for the upper and lower sliding door pivot shafts to shift position when the sliding door is manually rotated, so that a stable fully open operation is possible even when a door that is taller, wider, and heavier than conventional doors is used. In addition, after manually rotating the fixed door and the sliding door, if the door is returned to its pre-rotation state and then the sliding door is manually moved in the closing direction, the locking of the upper and lower sliding door pivot shafts by the upper and lower sliding door pivot shaft locking parts is released, and the sliding door can be moved further in the closing direction by hand. Effect of the Invention

[0025] According to the present invention, in an automatic door in which a fixed door and a sliding door are disposed between left and right vertical frames, which are capable of a fully opening operation in addition to normal opening and closing operations, and during normal opening and closing operations, the sliding door opens and closes along the fixed door in a range from the closed position to the normally open position, and during fully opening operations, when the sliding door moves further in the opening direction from the normally open position to the fully open position, both the restriction on rotation of the fixed door by the fixed door rotation lock part and the restriction on rotation of the sliding door by the sliding door rotation lock part are released, allowing the fixed door to rotate about the fixed door upper rotation shaft and the fixed door lower rotation shaft, and the sliding door to rotate about the sliding door upper rotation shaft and the sliding door lower rotation shaft, by providing an upper sliding door rotation shaft locking part that locks the upper sliding door rotation shaft in a predetermined position and a lower sliding door rotation shaft locking part that locks the lower sliding door rotation shaft in a predetermined position in the fully open position, the operability and reliability of the automatic door can be improved. To enable smooth full-opening operation by preventing misalignment of the upper and lower rotation shafts of a sliding door when manually rotating a fixed door and a sliding door, and also to enable smooth manual movement of the sliding door from the full-open position to the closing direction in the event of a power outage. [Brief description of the drawings]

[0026] [Figure 1] FIG. 2 shows the operation of a double-swing automatic door 1 in accordance with embodiment 1 of the present invention, where (a) is a front view seen from inside the room showing the closed state, (b) is a plan view seen from inside the room showing the fully open state, and (c) is a plan view showing the fully open state. [Diagram 2] FIG. 1 is a front view from the inside of a room showing the internal structure of the crosspiece and bottom rail of a single-swing automatic door 1a in accordance with the first embodiment of the present invention in a closed state. [Diagram 3] FIG. 1 is a front view from the inside of a room, showing the internal structure of the crosspiece and lower rail of an automatic single-swing door 1a in accordance with the first embodiment of the present invention in a fully open state. [Figure 4] 13 is an enlarged perspective view of the upper sliding door pivot locking portion 32 and its surroundings when the sliding door 4 is started to be manually rotated after the sliding door 4 has moved to a fully open position. FIG. [Diagram 5]13 is a cross-sectional view of a sliding door lower pivot shaft locking portion 36 and its surroundings when the sliding door 4 has moved to a fully open position, as viewed from the front. [Figure 6] 1 is an enlarged perspective view of a sliding door lower pivot shaft locking portion 36 and its surroundings when the sliding door 4 has moved to a fully open position. [Figure 7] FIG. 1 is a plan view showing, for comparison, embodiment 1 and variants 1 to 5 of the sliding door lower pivot shaft engaging portion 36 inside the lower rail of the automatic door of the present invention, (a) embodiment 1, (b) variant 1, (c) variant 2, (d) variant 3, (e) variant 4, and (f) variant 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic door according to the present invention will now be described with reference to the drawings. (First embodiment) (Operation of double-sliding fully-opening door) An automatic door 1 according to a first embodiment of the present invention will be described below. The automatic door 1 shown in Fig. 1 has fixed doors 3a, 3b and sliding doors 4a, 4b disposed between left and right vertical frames 2, 2. The left and right sliding doors 4a, 4b perform normal opening and closing operations by traveling along the adjacent fixed doors 3a, 3b in the range from the closed position to the normal open position. In addition, when the left and right sliding doors 4a, 4b move further from the normal open position to the fully open position in the open direction, the restriction on the rotation of the left and right fixed doors 3a, 3b by the left and right fixed door rotation lock parts 10a, 10b and the restriction on the rotation of the left and right sliding doors 4a, 4b by the left and right sliding door rotation lock parts 11a, 11b are both released. Then, the left and right fixed doors 3a, 3b and the sliding doors 4a, 4b that have been released from the restriction become a fully open automatic door 1 (full opener) that can be fully opened by rotating (swinging) toward the outside of the room. During the fully open operation, the left and right fixed doors 3a, 3b rotate around the fixed door upper rotation shafts 6a, 6b and the fixed door lower rotation shafts 7a, 7b. The left and right sliding doors 4a, 4b rotate around upper sliding door rotation shafts 8a, 8b and lower sliding door rotation shafts 9a, 9b. Fig. 1(a) is a front view showing the closed state, with the front side of the figure being the inside of the room and the back side being the outside. Fig. 1(b) is a front view showing the state in which the sliding doors 4a, 4b have moved to the fully open position and are ready for full opening. Fig. 1(c) is a plan view showing the state in which the left and right fixed doors 3a, 3b and the sliding doors 4a, 4b have been rotated (swinged) from the state in Fig. 1(b) in which the sliding doors 4a, 4b have moved to the fully open position.

[0028] (Door size expansion) In Fig. 1(a), DH1 and DW1 are the door height and width of the fixed doors 3a and 3b, and DH2 and DW2 are the door height and width of the sliding doors 4a and 4b. In conventional full-opening automatic doors 1, the maximum DH1 of the fixed doors 3a and 3b was about 2100mm, the maximum DW1 was about 1000mm, and the maximum door weight was about 60kg, but in recent years, larger doors are required, with a maximum DH1 of about 2700mm, a maximum DW1 of about 1250mm, and a maximum door weight of about 100kg. The maximum DH2 of the sliding doors 4a and 4b is also about 2700mm, similar to the fixed doors 3a and 3b, and DW2 is often slightly smaller than the fixed doors 3a and 3b, approximately the difference between the fully open position and the normal open position, but there is no doubt that larger doors are required than before.

[0029] (Fig. 1, Fig. 2, Fig. 3, single-pull and double-pull) 2 and 3 are diagrams for explaining the structure of the inside of the frame 5 of the automatic door 1 in FIG. 1 and the inside of the lower rail 33 embedded in the floor surface 12. For ease of viewing, FIGS. 2 and 3 show a left-handed, single-swing, single-leaf automatic door 1a with a fixed door 3 and a sliding door 4 disposed between the vertical frames 2, 2. The only difference between the automatic door 1 in FIG. 1 and the automatic door 1a in FIGS. 2 and 3 is the drive mechanism, which is whether one motor 21 drives one sliding door 4 or two sliding doors 4a, 4b on the left and right. The only difference apart from that is that the single-swing, single-leaf, full-open automatic door 1a in FIGS. 2 and 3 has only one fixed door 3 and one sliding door 4, whereas in the closed state (operation of a double-swing, full-open door), The double-sliding automatic door 1 in FIG. 1 has sliding doors 4a, 4b and fixed doors 3a, 3b arranged symmetrically with the door edge of the sliding door 4 as the axis of symmetry. The following explanation will focus on the single-swing, single-leaf automatic door 1a, with supplementary explanations on the double-swing, double-leaf automatic door 1 as necessary. FIG. 2 is a front view showing the internal structure of the transom 5 and the lower rail 33 in the closed state, and FIG. 3 is a front view showing the internal structure when the sliding door 4 has been moved to the fully open position.

[0030] (Drive configuration, single-pull and double-pull) In FIG. 2, inside the transom 5, which is covered with a cover not shown, there are disposed a drive device consisting of a motor 21 including a reduction mechanism, a drive pulley 23, a driven pulley 24, a belt 25, etc., and a controller 22 which controls the drive of the motor 21 to open and close the sliding door 4. A hanger section 26 is provided on the upper part of the sliding door 4. The hanger section 26 is connected to one of the upper and lower sides of the belt 25 via a belt gripper 29. The motor 21 controlled by the controller 22 rotates the belt 25 by driving, and the hanger section 26 is pulled, and a plurality of door rollers 27 journaled on the hanger section 26 run on the upper rail 28. As a result, the sliding door 4 suspended on the hanger section 26 performs an opening and closing operation. In the example of Figs. 2 and 3, the number of door rollers 27 is four, but this is not limited thereto, and may be changed to an optimum number depending on the weight of the sliding door 4 and the strength of the hanger section 26. When the automatic door 1 shown in Fig. 1 is applied to the fully open automatic door 1 that opens both ways and that slides both ways, the driven pulley 24 of the drive device is positioned on the opposite side, and the driving pulley 23 is positioned above the FIX door 3a and the FIX door 3b, respectively, and the belt 25 is stretched between the driven pulley 24 and the driving pulley 23. When the drive pulley 23 is rotated, the upper side of the belt 25 and the lower side of the belt 25 move in opposite directions. The hanger portion 26 of one sliding door 4a is attached to the upper side of the belt 25 via a belt gripper 29, and the hanger portion 26 of the other sliding door 4b is attached to the lower side of the belt 25 via a belt gripper 29. In this way, by simply rotating the drive pulley 23 with one motor 21, the one sliding door 4a and the other sliding door 4b move in opposite directions to each other and open. In addition, the sliding doors 4a, 4b can each be provided with a drive device consisting of a belt 25, a driven pulley 24, a driving pulley 23, and a motor 21. In this way, it becomes possible to configure the sliding doors 4a, 4b to open and close selectively or simultaneously. Furthermore, other than the parts related to the drive device, it is sufficient to add parts arranged symmetrically to those in FIG. 2.

[0031] (Sliding door rotation lock and sliding door positioning part) The sliding door 4 is attached to be rotatable around the upper and lower rotation shafts 8 and 9 with respect to the hanger section 26 and the sway stopper 34, but during normal opening and closing, the sliding door rotation lock section 11 restricts the sliding door 4 from rotating around the upper and lower rotation shafts 8 and 9 with respect to the hanger section 26 and the sway stopper 34. The sliding door rotation lock section 11 may employ a well-known mechanism similar to that shown in Figs. 4, 5, and 7 of Patent Document 1, and therefore detailed drawings and explanations are omitted. In this case, the sliding door 4 may be further positioned with respect to the hanger section 26 by the sliding door positioning section 14. For example, a ball pressed by a spring may be provided on the sliding door 4 to elastically engage with an engagement hole provided on the hanger section 26 for positioning, thereby eliminating rattling of the sliding door 4 and improving the quality of the automatic door 1a. Conversely, a ball pressed by a spring may be provided on the hanger portion 26 so as to elastically engage with an engagement hole provided on the sliding door 4 for positioning.

[0032] (FIX door rotation lock and FIX door positioning part) The fixed door 3 is attached so as to be rotatable with respect to the transom 5 and the floor surface 12 around the fixed door upper pivot shaft 6 and the fixed door lower pivot shaft 7. The fixed door 3 is normally set to be closed, and the rotation of the fixed door 3 around the fixed door upper pivot shaft 6 and the fixed door lower pivot shaft 7 with respect to the transom 5 and the floor surface 12 is restricted by the fixed door pivot lock unit 10. The fixed door pivot lock unit 10 can adopt a well-known mechanism similar to that shown in Figs. 6 and 8 of Patent Document 1, and therefore detailed drawings and explanations are omitted. At this time, the fixed door 3 may be further positioned with respect to the transom 5 by the fixed door positioning unit 13. The structure of the fixed door positioning unit 13 can be exemplified by a structure in which a ball pressed by a spring is provided on the fixed door 3 and elastically engages with an engagement hole provided on the transom 5. The fixed door positioning part 13 determines the positions of the fixed door 3 and the interlocking door 5 by fitting a ball into an engagement hole, and can position the fixed door 3 to eliminate rattling. Furthermore, the fixed door positioning part 13 can improve the quality of the automatic door 1a by eliminating rattling. Note that the structure of the fixed door positioning part 13 may be reversed, in which a ball pressed by a spring is provided on the interlocking door 5 and elastically engages with an engagement hole provided in the fixed door 3 to position it.

[0033] (Fix door rotation lock release) 3, when the sliding door 4 moves to the fully open position, the restriction on the rotation of the fixed door 3 relative to the interlock 5 by the fixed door rotation lock part 10 is released, and the fixed door 3 becomes rotatable about the fixed door upper rotation shaft 6 and the fixed door lower rotation shaft 7. In addition, if the fixed door 3 is manually rotated relative to the interlock 5 after the restriction on the rotation of the fixed door 3 by the fixed door rotation lock part 10 is released, the elastic engagement of the ball provided on the fixed door 3 with the engagement hole of the interlock 5 by the fixed door positioning part 13 is also released.

[0034] (Slide door rotation lock release) Similarly, when the sliding door 4 moves to the fully open position, the restriction on the rotation of the sliding door 4 relative to the hanger part 26 by the sliding door rotation lock part 11 is also released, and the sliding door 4 becomes rotatable about the sliding door upper rotation shaft 8 and the sliding door lower rotation shaft 9. Furthermore, after the restriction on the rotation of the sliding door 4 by the sliding door rotation lock part 11 is released, if the sliding door 4 is manually rotated relative to the hanger part 26, the elastic engagement of the ball provided on the sliding door 4 with the engagement hole of the hanger part 26 by the sliding door positioning part 14 is also released.

[0035] (Hanger part locking ⇒ sliding door upper pivoting shaft locking) 3, when the hanger part 26 suspending the sliding door 4 moves along the upper rail 28 by being driven by the motor 21 and the sliding door 4 moves to the fully open position, the suction plate 31 arranged at the end of the hanger part 26 on the door tail side of the sliding door 4 (the side closer to the vertical frame 2 on the side where the fixed door 3 is arranged) is attracted to the magnet 30 fixed to the vertical frame 2, and the hanger part 26 is locked at a predetermined position (when fully open) on the upper rail 28 with a predetermined force. The sliding door upper rotation shaft 8 is fixed to the sliding door 4 and is rotatably supported by the hanger part 26 via upper and lower thrust bearings, and when the hanger part 26 is locked at a predetermined position (when fully open), the sliding door upper rotation shaft 8 supported by the hanger part 26 is also locked at a predetermined position (when fully open). In other words, when the sliding door 4 is in the fully open position, the attraction plate 31 and the magnet 30 use their attraction force to lock the hanger portion 26 in a predetermined position (when fully open) on the upper rail 28, thereby forming a sliding door upper pivot shaft locking portion 32 that locks the sliding door upper pivot shaft 8 in a predetermined position (when fully open). The locking of the sliding door upper pivot shaft 8 by the sliding door upper pivot shaft locking portion 32 can be released by driving the motor 21 to move the sliding door 4 from the fully open position in the closing direction.

[0036] (Hanger part locking ⇒ sliding door upper pivot locking) FIG. 4 is an enlarged perspective view of the upper pivot shaft locking portion 32 of the sliding door and its surroundings when the sliding door 4 has been moved to the fully open position and has begun to be manually rotated. The fixed door 3 and its related parts are omitted from the illustration so that the parts to be explained can be more clearly seen. The hanger section 26 rotatably supports the upper sliding door pivot shaft 8 attached to the sliding door 4 via two upper and lower thrust bearings, thereby suspending the sliding door 4 at one location even when it is pivoted. The hanger section 26 is provided with a plurality of door rollers 27 that run on an upper rail 28 when the sliding door is opened or closed, and an attraction plate 31 is attached to the end on the vertical frame 2 side via a damper section 37. A magnet 30 is also attached to the vertical frame 2, and when the sliding door 4 moves to the fully open position, the attraction plate 31 is attracted to the magnet 30. The attraction of the attraction plate 31 and the magnet 30 locks the hanger section 26 at a predetermined position (when fully open) with a predetermined force, so that the upper sliding door pivot shaft 8 supported at a predetermined position of the hanger section 26 for rotation is locked at the predetermined position (when fully open).

[0037] (Protect the magnet, reverse the magnet and suction plate) The magnet 30 may be formed into a cylindrical shape, for example, and the circumferential surface and the back side of the attracting surface may be covered with a yoke to concentrate the magnetic force on the attracting surface and improve the attracting force, and the circumferential surface of the yoke may be protruded slightly from the attracting surface of the magnet 30 to protect the magnet 30 by preventing the attracting plate 31 from directly hitting the magnet 30. The attracting plate 31 may be attached via a damper portion 37 to reduce the impact on the magnet 30 when it is attracted, to protect the magnet 30 and to reduce the impact sound generated when it is attracted. The magnet 30 and the attracting plate 31 may be arranged such that the magnet 30 is attached to the hanger portion 26 side and the attracting plate 31 is attached to the vertical frame side. However, when the magnet 30 is attached to the hanger portion 26, it is necessary to check the effect of the magnetic force on the operation of the mechanism parts such as the fixed door rotation lock portion 10 and the sliding door rotation lock portion 11.

[0038] (Comparison between magnetic upper pivot lock and spring lock) Also, instead of using the magnet 30 and the suction plate 31 for the sliding door upper pivot shaft locking portion 32, a locking mechanism using spring elasticity may be adopted. However, to release a locking mechanism using spring elasticity, it is generally necessary to move the hanger portion 26 to a position where the lock can be released against the gradually increasing spring force, so although there is no problem when releasing it by the driving force of the motor 21, a large force is required to manually release the lock of the hanger portion 26 during a power outage, and it cannot be said that it can be moved easily. In contrast, when the magnet 30 and the suction plate 31 are used, if a force is applied to tilt the suction plate 31 against the magnet 30, the suction force will decrease rapidly if one end of the magnet 30 and the suction plate 31 are separated even slightly, so that the engagement of the suction plate 31 of the hanger portion 26 with the magnet 30 can be released relatively easily manually even during a power outage. In addition, the sliding door upper pivot shaft locking portion 32 using the magnet 30 and the attraction plate 31 is space-saving and has the advantage of not restricting the position of the sliding door upper pivot shaft 8, maximizing the opening width when fully open. A locking mechanism that utilizes the elasticity of a spring has the advantage of being less likely to come off than a mechanism that uses a magnet 30, etc.

[0039] As shown in the lower part of Figure 3, the sliding door 4 is supported rotatably around the sliding door lower pivot shaft 9 fixed to its lower part by a vibration stopper 34 that moves along the lower rail 33 as the sliding door 4 is opened and closed. Please refer to Figures 5 and 6. Figure 5 is a cross-sectional view of the sliding door lower pivot shaft locking portion 36 and its surroundings when the sliding door 4 has moved to the fully closed position, with the fixed door lower pivot shaft 7 and other parts omitted to make it easier to see what will be described. Figure 6 is a perspective view of the sliding door lower pivot shaft locking portion 36 and its surroundings when the sliding door 4 has moved to the fully open position, with the sliding door 4, fixed door 3, and other parts omitted to make it easier to see what will be described. When the sliding door 4 moves to the fully open position, the stopper portion 35 restricts the further movement of the sway stopper 34 in the opening direction, and the leaf spring 39 restricts the movement of the sway stopper 34 in the closing direction, so that the sway stopper 34 is locked at a predetermined position (when fully open) in the lower rail 33 with a predetermined force. When the sway stopper 34 is locked at the predetermined position (when fully open), the sliding door lower pivot shaft 9 supported by the sway stopper 34 is also locked at the predetermined position (when fully open). In other words, when the sliding door 4 is in the fully open position, the stopper portion 35 and the leaf spring 39 lock the sway stopper 34 at the predetermined position (when fully open) in the lower rail 33, thereby forming a sliding door lower pivot shaft locking portion 36 that locks the sliding door lower pivot shaft 9 at the predetermined position (when fully open). The locking of the sliding door lower pivot shaft 9 by the sliding door lower pivot shaft locking portion 36 can be released by driving the motor 21 to move the sliding door 4 from the fully open position in the closing direction.

[0040] (Configuration of the sliding door lower pivot shaft locking portion) 5 and 6, the sway stopper 34, which moves along the lower rail 33 as the sliding door 4 opens and closes, is rotatably supported via a spacer 38 on the sliding door lower pivot shaft 9 attached to the sliding door internal structural member 41. A stopper portion 35 is fixed to the end of the vertical frame 2 on the door end side of the sliding door 4 inside the lower rail 33 with screws (not shown). A leaf spring fixing plate 40 is fixed to the surface of the stopper portion 35 facing the sway stopper 34 with two flat head screws, sandwiching the mounting portion of the leaf spring 39 therebetween.

[0041] (Locked by leaf spring) When the sliding door 4 reaches the fully open position, the sway stop 34 stops in contact with the leaf spring fixing plate 40. That is, the leaf spring fixing plate 40 functions as a stopper portion 35 that restricts further movement of the sway stop 34 of the sliding door 4 in the opening direction and stops it at a predetermined (fully open) position. The sway stop 34 has a recess on its side, and the leaf spring 39 has a protrusion on its side, so that when the sliding door 4 reaches the fully open position, the recess of the sway stop 34 engages with the protrusion of the leaf spring 39, restricting movement of the sway stop 34 in the closing direction and locking it at the predetermined (fully open) position.

[0042] (Magnet and suction plate at the bottom) As described above, in the embodiment of the present invention, a locking mechanism utilizing the elasticity of a low-cost leaf spring 39 is adopted for the lower sliding door pivot shaft engaging portion 36. However, similar to the upper sliding door pivot shaft engaging portion 32, a magnet 30 and an attraction plate 31 may be used to engage the anti-sway stopper 34 at a predetermined position (when fully open) within the lower rail 33.

[0043] (Effect of locking the upper and lower pivot points) As shown in Fig. 3, before the sliding door 4 is manually rotated in the fully open position, a counterclockwise moment due to its own weight acts on the sliding door 4, so that a force acts on the hanger portion 26 to move the hanger portion 26 in the closing direction of the sliding door 4. This force increases with an increase in the door height, width, and weight required by the user, but the movement of the hanger portion 26 can be sufficiently suppressed by providing the sliding door upper rotation shaft locking portion 32 and locking the hanger portion 26 in a predetermined (fully open) position. On the other hand, a force is generated on the sway stopper 34 to move the sway stopper 34 in the opening direction of the sliding door 4, but in this state, the sway stopper 34 is pressed against the stopper portion 35 and stops at the predetermined (fully open) position, so it will not open. However, when the sliding door 4 is rotated, the force of the moment pressing the sway stopper 34 against the stopper portion 35 is suddenly reduced. In addition, as the sliding door 4 becomes larger, the force that moves the sway stopper 34 and the sliding door lower pivot shaft 9 in the closing direction acts depending on the way the sliding door 4 is manually rotated, which may cause the sliding door 4 to tilt. Even if the sliding door upper pivot shaft locking portion 32 is added, it is not enough to suppress the movement of the sway stopper 34, and the lock of the sliding door upper pivot shaft 8 may come off. However, it has been found that such a phenomenon does not occur by locking the hanger portion 26 in a predetermined position (when fully open) with the sliding door upper pivot shaft locking portion 32, and by locking the sway stopper 34 in a predetermined position (when fully open) with the sliding door lower pivot shaft locking portion 36.

[0044] (Necessity of manual release in case of power outage) As described above, by providing the sliding door upper rotation shaft locking portion 32 and the sliding door lower rotation shaft locking portion 36, the positions of the upper and lower rotation shafts do not shift when the sliding door 4 is manually rotated, allowing for a stable full-open operation. However, if a power outage occurs when closing the door after the door is fully opened and evacuation is completed in an emergency such as a fire, it is necessary to manually return the rotated fixed door 3 and sliding door 4 to the fully open position, and further manually move the sliding door 4 to the normally open position. At this time, it is desirable to be able to release the lock of the sliding door 4 by the sliding door upper rotation shaft locking portion 32 and the sliding door lower rotation shaft locking portion 36 by manually moving the sliding door 4 in the closing direction.

[0045] (Example of locking force of upper and lower rotating shaft locking parts) The locking force of the sliding door upper pivot shaft locking portion 32 may be determined with a certain margin against the maximum moment due to the weight of the sliding door 4, which is assumed based on the specifications of the door height, door width, and door weight of the sliding door 4. The locking force when using the maximum door assumed here may be, for example, about 300 to 400 N, utilizing the attraction force of the magnet 30 and the attraction plate 31. On the other hand, the locking force of the sliding door lower pivot shaft locking portion 36 does not need to be so large because it is sufficient that the position is not displaced by the force when a person manually rotates the sliding door 4, and may be, for example, about 50 N to 100 N, utilizing the elastic force of the leaf spring 39.

[0046] (How to reset during a power outage) Under these conditions, if a person manually moves the sliding door 4 in the closing direction near a height between the sliding door upper pivot shaft 8 and the sliding door lower pivot shaft 9 where it is easy to move during a power outage, first the engagement of the anti-sway stopper 34 by the sliding door lower pivot shaft locking part 36 will be released. If the sliding door 4 is further manually moved in the closing direction, a force will act to tilt the attraction plate 31 diagonally relative to the attraction surface of the magnet 30, and if the lower end of the attraction plate 31 moves even slightly away from the magnet 30, the magnetic attraction force will suddenly decrease, and the engagement of the hanger part 26 by the sliding door upper pivot shaft locking part 32 will be released. Since the principle of leverage also comes into play during the release, the engagement by the sliding door upper pivot shaft locking part 32 will be released relatively easily. After the upper and lower pivot shafts have been released, the sliding door 4 can be manually moved to the normally open position, thereby locking the rotation of the FIX door 3 and the sliding door 4 by the FIX door pivot lock unit 10 and the sliding door pivot lock unit 11, and further allowing the sliding door 4 to be easily moved to the fully closed position.

[0047] In this way, manual release during a power outage can be achieved relatively easily by using the attraction force of the magnet 30 and the attraction plate 31 for the sliding door upper pivot shaft engaging portion 32. In contrast, if a locking mechanism using the elasticity of a spring is used for the sliding door upper pivot shaft engaging portion 32, when manually moving the sliding door 4 in the closing direction, it is necessary to move the hanger portion 26 against the spring force that gradually increases with the movement to a position where the lock is released, making manual release during a power outage much more difficult than when the magnet 30 and the attraction plate 31 are used.

[0048] (Automatic door operation 1) Next, the operation of the full-opening automatic doors 1, 1a according to the first embodiment of the present invention will be described. When the sliding door 4 of the automatic door 1a in FIG. 2 is performing a normal opening / closing operation in which it travels between the closed position and the normally open position and opens and closes, if a full-open switch (not shown) is turned on, the sliding door 4 will be driven by the motor 21 to move to the fully-open position (until the restrictions on the rotation of the FIX door 3 and the sliding door 4 by the FIX door rotation lock unit 10 and the sliding door rotation lock unit 11 are both released and both the sliding door upper rotation shaft 8 and the sliding door lower rotation shaft 9 are locked in predetermined positions, i.e., until the sliding door 4 cannot move any further in the opening direction), regardless of the position of the sliding door 4 (i.e., regardless of whether the sliding door 4 is stopped or traveling), and then stop.

[0049] (Automatic door operation 2) After that, the user rotates the fixed door 3 and the sliding door 4 toward the outside of the room. At this time, if either of the fixed door 3 and the sliding door 4 (in the case of the fully open automatic door 1 that opens both ways, either of the fixed door 3a, 3b or the sliding door 4a, 4b) is rotating, a rotation signal is output from a detection unit such as a light switch (not shown). While the rotation signal is being output (even if the user turns off the fully open switch), the driving of the motor 21 is maintained in a stopped state. After that, when the user returns both the rotated fixed door 3 and the sliding door 4 to the state before the rotation and then turns off the fully open switch, the sliding door 4 starts to move in the closing direction by the driving of the motor 21 after a predetermined time (which can be changed by setting). After the sliding door 4 moves to the normally open position, the normal closing operation continues with the rotation of both the fixed door 3 and the sliding door 4 restricted by the fixed door rotation lock unit 10 and the sliding door rotation lock unit 11. If no pedestrian is detected during the normal closing operation, the sliding door 4 stops at the closed position.

[0050] (Automatic door operation during power outage 1) Next, a description will be given of the operation of the full-opening automatic door 1, 1a according to the first embodiment of the present invention during a power outage. Even in the event of a power outage during an emergency such as a fire, the automatic door 1, 1a can be manually fully opened to allow evacuation, and can also be manually closed after evacuation is complete. In the event of a power outage, if the user manually moves the sliding door 4 to the normal open position and then further manually moves it to the fully open position, the restriction on the rotation of the fixed door 3 by the fixed door rotation lock part 10 and the restriction on the rotation of the sliding door 4 by the sliding door rotation lock part 11 are both released, and then the sliding door upper rotation shaft 8 and the sliding door lower rotation shaft 9 are each locked in a predetermined (fully open) position. In this state, the fixed door 3 and the sliding door 4 can be manually rotated smoothly to the fully open state, allowing smooth evacuation through the large, fully open opening.

[0051] (Automatic door operation during power outage 2) Once evacuation is complete, all of the manually rotated fixed doors 3 and sliding doors 4 (in the case of a fully-opening automatic door 1 that opens both ways, all of the rotated fixed doors 3a, 3b and sliding doors 4a, 4b) are returned to their positions before they were rotated, and then the sliding door 4 is moved in the closing direction with a prescribed force, which relatively easily releases the lock of the sliding door lower rotation shaft 9 by the sliding door lower rotation shaft locking part 36 and the lock of the sliding door upper rotation shaft 8 by the sliding door upper rotation shaft locking part 32. When the sliding door 4 is then moved in the closing direction to the normally open position, the rotation of both the fixed door 3 and the sliding door 4 by the sliding door rotation locking part 10 and the sliding door rotation locking part 11 is restricted, so that the opening can be closed by manually moving the sliding door 4 to the closed position. Furthermore, if there is a power outage after evacuation is complete, the opening can be closed using exactly the same procedure.

[0052] The above has been a summary of the double-sliding, double-leaf automatic door 1 and the single-sliding, single-leaf automatic door 1a according to embodiment 1 of the present invention. In particular, the configurations of the sliding door upper pivot shaft locking portion 32 and the sliding door lower pivot shaft locking portion 36, which are essential parts of the present application, are common to the double-sliding, double-leaf automatic door 1 and the single-sliding, single-leaf automatic door 1a, and the only difference is that they are used as one set in the single-sliding, single-leaf automatic door 1a, whereas they are used as two symmetrical sets in the double-sliding, double-leaf automatic door 1, and therefore some explanations have been omitted.

[0053] The sliding door upper pivot shaft locking portion 32 and the sliding door lower pivot shaft locking portion 36 of the embodiment lock the sliding door upper pivot shaft 8 and the sliding door lower pivot shaft 9 with a predetermined force. This positions the sliding door upper pivot shaft 8 and the sliding door lower pivot shaft 9 at a predetermined position. Locking the sliding door upper pivot shaft 8 and the sliding door lower pivot shaft 9 with a predetermined force is preferable because it can be released simply by moving the sliding door 4 in the closing direction. Note that there are various ways to position them at the predetermined position, including locking with a predetermined force. For example, a lock mechanism that is released by a dedicated electric or manual release means may be used, and the force required to move the sliding door 4 in the closing direction can be significantly reduced. Next, a description will be given of modified examples of the sliding door lower rotation shaft locking portion 36. Modifications 1 to 5 are all different only in the configuration of the sliding door lower rotation shaft locking portion 36, and other configurations are the same as those of embodiment 1, so that description will be omitted. In the embodiment, the full-open switch and other switches have been described as being operated by the user. However, the full-open switch and other switches may be operated by anyone, or may be operated remotely by staff in the building's security room. In addition, the operation of the switches does not have to be manual, as in remote operation.

[0054] 7(a) is a plan view showing the configuration of the sliding door lower pivot shaft locking portion 36 of the first embodiment for comparison with the modified examples, and parts related to the sliding door 4 and the fixed door 3 are omitted in order to make the parts to be described easier to see. The sway stopper 34 of the first embodiment is characterized in that it is point-symmetrical in plan view. Since the sway stopper 34 is attached rotatably to the sliding door lower pivot shaft 9 attached to the sliding door 4, there is a possibility that the sway stopper 34 will be rotated 180 degrees and attached to the lower rail 33 when the sliding door 4 is hung during construction. Even in that case, the recess of the sway stopper 34 is fitted into the protrusion of the leaf spring 39, thereby improving workability.

[0055] (Variation 1) Fig. 7(b) is a diagram showing modified example 1 of the sliding door lower pivot shaft locking portion 36. Since this sway stopper 34 is not point-symmetrical unlike embodiment 1 in Fig. 7(a), when hanging the sliding door 4 during installation, care must be taken not to rotate the sway stopper 34 180 degrees and attach it to the lower rail 33, which slightly reduces workability, but on the other hand, processing of the sway stopper 34 is easy and costs can be reduced.

[0056] (Variation 2) Fig. 7(c) is a diagram showing modified example 2 of the sliding door lower pivot shaft locking portion 36. The only difference is that the recess of the vibration stopper 34 and the fitting portion of the leaf spring 39 are on the left side in the direction of the stopper portion 35 in embodiment 1 shown in Fig. 7(a), whereas in modified example 3 they are on the right side. However, there is no significant difference in terms of effect, operability, and cost, and either may be adopted.

[0057] (Variation 3) Fig. 7(d) is a diagram showing modified example 3 of the sliding door lower pivot shaft locking portion 36. The difference is that while the recess of the vibration stopper 34 and the leaf spring 39 fit together at one location in the embodiment 1 shown in Fig. 7(a), modified example 3 has them fitted together at two locations, one on the left and one on the right. When the locking force is insufficient at one location, the locking force can be increased relatively easily by using this example.

[0058] (Variation 4) Fig. 7(e) is a diagram showing modified example 4 of the sliding door lower pivot shaft locking portion 36. While in embodiment 1 in Fig. 7(a) a recess provided on the side of the sway stopper 34 is fitted into a protrusion of the leaf spring 39, modified example 4 differs in that a recess provided on the bottom surface of the sway stopper 34 is fitted into a protrusion of the leaf spring 39. This may be done if the leaf spring 39 inside the lower rail 33 is not to be noticeable.

[0059] (Variation 5) Fig. 7(f) is a diagram showing modified example 5 of the sliding door lower pivot shaft locking portion 36. In the embodiment 1 shown in Fig. 7(a), the leaf spring 39 is fixed to the stopper portion 35, but in modified example 5, the leaf spring 39 is fixed to the sway stopper 34, and a recess provided on the side of the stopper portion 35 is fitted into a protrusion of the leaf spring 39 attached to the sway stopper 34. When using the sway stopper 34 used in another automatic door, the combination may be changed as appropriate according to the shape and dimensions of the respective doors.

[0060] Various other methods can be used for the sliding door lower pivot shaft locking portion 36. For example, a magnet 30 and an attraction plate 31 may be used as in the sliding door upper pivot shaft locking portion 32, and this may be better in terms of performance. However, in terms of cost, the leaf spring 39 is cheaper, so if the performance is within an acceptable range, it is better to select the leaf spring 39.

[0061] As described above, the present invention can be widely applied to full-opening automatic doors 1, 1a that can perform normal sliding opening and closing operations and full-opening operations by rotating (swinging), regardless of the type. [Explanation of symbols]

[0062] 1,1a:Automatic door 2: Vertical frame 3, 3a, 3b: FIX DOOR 4, 4a, 4b: Sliding door 5: No Eyes 6, 6a, 6b: FIX door upper pivot shaft 7, 7a, 7b: FIX door lower pivot shaft 8, 8a, 8b: Upper pivot shaft of sliding door 9, 9a, 9b: Lower pivot shaft of sliding door 10, 10a, 10b: FIX door rotation lock part 11, 11a, 11b: Sliding door rotation lock part 12:Floor surface 13, 13a, 13b: FIX door positioning part 14, 14a, 14b: Slide door positioning portion 21:Motor 22: Controller 23: Drive pulley 24: Driven pulley 25: Belt 26: Hanger section 27: Wheel 28: Upper rail 29: Belt Grab 30: Magnet 31: Adsorption plate 32: Upper pivot shaft locking part of sliding door 33: Lower rail 34: Vibration stopper 35: Stopper part 36: Lower pivot shaft locking part of sliding door 38: Spacer 39: Leaf spring 40: Leaf spring fixing part 41: Sliding door internal structural components

Claims

1. An automatic door in which a fixed door and a sliding door are disposed between left and right vertical frames, and which is capable of a fully opening operation in addition to a normal opening / closing operation, and during the normal opening / closing operation, the sliding door opens and closes along the fixed door in a range from a closed position to a normally open position, and during the fully opening operation, when the sliding door moves further in the opening direction from the normally open position to a fully open position, the restriction on the rotation of the fixed door by the fixed door rotation lock part and the restriction on the rotation of the sliding door by the sliding door rotation lock part are both released, and the fixed door can be rotated about an upper fixed door rotation shaft and a lower fixed door rotation shaft, and the sliding door can be rotated about an upper sliding door rotation shaft and a lower sliding door rotation shaft, a sliding door upper pivot shaft locking portion for positioning the sliding door upper pivot shaft at a predetermined position at the fully open position, and a sliding door lower pivot shaft locking portion for positioning the sliding door lower pivot shaft at a predetermined position; An automatic door characterized by comprising:

2. The sliding door is supported by a vibration stopper that moves along a lower rail as the sliding door is opened and closed, so as to be rotatable around the sliding door lower pivot shaft fixed to the lower part of the sliding door, The automatic door of claim 1, characterized in that the sliding door lower pivot shaft locking portion positions the sliding door lower pivot shaft at a predetermined position by locking the anti-sway device at a predetermined position within the lower rail when in the fully open position.

3. The sliding door lower pivot shaft locking portion is a stopper portion disposed in the lower rail near the vertical frame on the fixed door side, which restricts the further movement of the swing rest in the opening direction and stops the swing rest at a predetermined position when the sliding door moves to the fully open position; a leaf spring that restricts movement of the vibration rest in a closing direction at the fully open position and locks the vibration rest in a predetermined position; 3. The automatic door according to claim 2, further comprising:

4. The vibration rest has a recess and the leaf spring has a protrusion, When the recess and the protrusion are engaged in the fully open position, the vibration rest is engaged with the leaf spring.

4. The automatic door according to claim 3.

5. The sliding door is supported by a hanger portion that moves along an upper rail as the sliding door is opened or closed, so as to be rotatable about the sliding door upper rotation shaft to which the sliding door is fixed at its upper portion, 2. The automatic door according to claim 1, wherein the sliding door upper pivot shaft locking portion positions the sliding door upper pivot shaft at a predetermined position by locking the hanger portion at a predetermined position on the upper rail when the automatic door is in the fully open position.

6. The sliding door upper pivot shaft locking portion is A suction plate disposed on a side of the hanger portion close to the vertical frame on the fixed door side; a magnet disposed in a position facing the attraction plate near the vertical frame on the fixed door side; Equipped with 6. The automatic door according to claim 5, wherein the attraction plate is attracted to the magnet when the automatic door is in the fully open position.

7. 7. The automatic door according to claim 6, wherein the suction plate is fixed to the hanger portion via a damper portion.

8. Further comprising a full opening switch for operating the full opening switch; When the full-open switch is turned ON during normal opening and closing operations, the sliding door is moved to the fully-open position by the driving of a motor regardless of the position of the sliding door and then stops there, and when either the fixed door or the sliding door is rotated, the driving of the motor is maintained in a stopped state, and thereafter, when both the fixed door and the sliding door are returned to the state before the rotation and then the full-open switch is turned OFF, the sliding door moves in the closing direction by the driving of the motor, and the states in which the sliding door upper rotation shaft and the sliding door lower rotation shaft are positioned in predetermined positions by the sliding door upper rotation shaft locking portion and the sliding door lower rotation shaft locking portion are both released.

8. The automatic door according to claim 1, wherein the door is opened by opening the door.

9. When the sliding door is moved to the fully open position, the sliding door upper rotation shaft and the sliding door lower rotation shaft are positioned at predetermined positions by the sliding door upper rotation shaft locking portion and the sliding door lower rotation shaft locking portion, and when the fixed door and the sliding door are rotated and then returned to their pre-rotation states and the sliding door is moved in the closing direction, the locking of the sliding door upper rotation shaft and the sliding door lower rotation shaft by the sliding door upper rotation shaft locking portion and the sliding door lower rotation shaft locking portion are both released.

8. The automatic door according to claim 1, wherein the door is opened by opening the door.

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