JP3824234B2 - Automatic door device - Google Patents

Description

  The present invention relates to an automatic door device that includes a drive device that converts rotational power into linear motion and that can smoothly open and close the door with little power.

  2. Description of the Related Art Conventionally, an automatic door device that has been widely used has a configuration in which a suspension door is moved laterally along a guide rail mainly by a winding drive such as a toothed belt. Further, there is a screw drive system in which a member having a female screw is screwed to the screw shaft, and the female screw is caused to advance straight by rotational driving of the screw shaft.

  However, the conventional automatic door device has a problem in that the drive part is inevitably large, and therefore a large space must be taken in the upper part of the opening (entrance / exit) of the building. In addition, the drive mechanism is inevitably complicated, and the door has a hanging structure. Therefore, it is necessary to attach the guide rail for guiding the vehicle steadily.

  In addition, since the power for opening and closing is transmitted to the drive part and the suspended traveling part of the door (referred to as a runner or carrier), a complicated structure is also adopted for the mechanism for the connection. . In particular, because the friction between the guide rail and its runner is large during running, large power transmission mechanisms and drive motors are used for the drive machine, and the doors that are frequently opened and closed are severely worn. Often cause failure. In addition, in the automatic door device, not only the overall structure is enlarged, but also the mounting structure is complicated. For example, when the drive part breaks down during maintenance, a cover or rail is used to remove the drive part. There is a problem that it is necessary to disassemble almost all of the parts and the like and to perform work, which requires a lot of work.

  The present invention has been made to solve the above-described problems. The door opening / closing drive unit is made compact and downsized, and the eaves for attaching the door can be easily attached to the building for installation work. An object of the present invention is to provide an automatic door device configured to facilitate the maintenance and perform maintenance easily.

In order to achieve the above object, an automatic door device according to the present invention comprises:
Inside on the stile being set with along the opening upper member of a building, a guide rail for lowering guide suspended a screw driving machine and the door of the door opening and closing is attached is housed in approximately the same depth, the guide A horizontal member having a plurality of power transmission rollers arranged at a pitch corresponding to a lead of a drive screw of the screw drive is suspended from a plurality of runners supported by rails and freely runnable. And the door is opened and closed by driving the power transmission roller of the power transmission means with the screw drive (first invention).

The first Oite the invention, the screw driving machine is detachably mounted by a bracket to the housing portion located on the upper side of the upper rail partitioned vertically in the box structure, a drawer on the front side of the mounting portion It is preferable that the structure is detachable ( second invention).

Further, in the second invention, the lower housing portion of the upper rail has a connecting portion between the horizontal members arranged a plurality of power transmission rollers constituting the power transmitting means over its entire length and the runner It is preferable that a slit portion that can be passed is formed, and that the power transmission roller can be engaged with and moved by the drive screw of the screw drive device above the slit portion ( third invention).

In the first invention or the third invention, the drive screw of the screw driving machine, when receiving the axial thrust through the power transmission roller for engagement with the drive screw, in relation to the movement in the axial direction it is preferable is configured to actuate the limit switch provided for driving stop or reverse rotation (fourth invention).

In the first invention, the third invention, or the fourth invention, the drive screw is automatically restored when the return springs are loaded at both ends, and the axial thrust that is tampered with through the power transmission roller is removed. It is preferable that the structure is configured to be driven ( fifth invention).

Furthermore, the screw driving machine, at the output of the drive motor, clutch provided between the drive shaft of the motor output shaft and the drive screw, with the gear conducted to the drive shaft from the driven shaft of the clutch The driven shaft is preferably extended to provide a rotary encoder ( sixth invention).

In addition, a cover formed detachably is provided on the front surface of the housing portion of the housing integrated with the guide rail so that the screw driver can be removed. When the cover is removed, the screw driver can be removed. It may be between structure that is built (seventh invention).

According to the first invention, since it is attached to the upper frame portion and the guide rail of the screw driving machine and Tobiratsu lowering a drive for door opening and closing is housed in approximately the same depth, the overall compact Since they are combined and naturally reduced in weight, the mounting thereof becomes easy, and the effect of facilitating the assembling work of the door device is achieved. Moreover, it can be finished beautifully by making it compact. And since the power transmission means which drives the power transmission roller arrange | positioned on a straight line with a screw drive machine and carries out a rectilinear operation is integrated, there exists an effect that a door can be opened and closed with small power.

Further, according to the second invention , the screw driving machine as a driving device is detachably attached to the upper position of the guide rail, and can be pulled out to be removed, so that the maintenance of the driving unit can be performed. Since the operation can be performed without disassembling the entire door device such as the drive unit and the guide rail, there is an advantage that the operation can be efficiently performed.

By adopting the configuration of the third aspect of the invention, a slit member is provided on the lower side of the housing portion that houses the screw drive machine , so that a horizontal member in which a large number of power transmission rollers are arranged and a runner that moves the door hanging down. By connecting the drive screw and its power transmission roller, the rotary motion can be converted into linear motion and driven without exposing the rotary portion to the door moving side. The entry of foreign matter can be prevented, and safety can be improved.

Further, by adopting the configuration of the fourth invention, when the drive screw is configured to be slidable on the drive shaft and the engaging power transmission roller cannot be detached from the drive screw, the thrust is directly applied to the screw. When acted, the drive screw is moved in the axial direction by thrust, and the limit switch provided facing the end of the drive screw is operated. When it is stopped by hitting, the limit switch is activated and reverses immediately, it can be opened and the door can be closed after the operation by the opening timer, or it can be overloaded by shutting off the power supply when overloaded. Thus, no failure occurs. In addition, when the limit switch on the door opening side is activated, there is an effect that the door can be automatically closed in the closing direction.

Further, by adopting the configuration of the fifth invention, when thrust is applied to the drive screw by the operating power transmission roller, it moves in the axial direction, and when the thrust is removed, it is pushed back by the return spring. because they are, had been cut off power through the limit switch is automatically reset immediately be opening and closing operation of the door, there is no possibility of causing trouble in use.

Further, by adopting the configuration of the sixth invention, when the excitation operation of the clutch is stopped, the rotational force by the drive motor is cut off and the drive screw becomes free, so the drive motor has a speed reduction mechanism. There is an advantage that the door can be led open and closed even when it cannot be operated due to a power failure or the like, that is, even when automatic opening and closing becomes impossible. In addition, by attaching an encoder, during normal operation, the amount of rotation of the drive screw can be measured (start position, closed position or travel distance) to detect the amount of movement of the door, so that the degree of door opening and closing can be regulated. it can. Therefore, the opening degree of the door at the doorway with a wide frontage can be arbitrarily set. For example, the door opening is provided at the doorway of a building where the room temperature needs to be maintained. Moreover, by associating the rotation encoder and the drive shaft of the drive screw, for example, even when returning from a power failure, because the measured data of rotation encoder is stored in the storage means definitive control unit (memory), the distance setting There is an advantage that it is not necessary to renew.

According to the seventh aspect of the invention, since the housing portion of the screw drive machine and the guide rail are made into an integral structure and the upper collar portion can be configured, the whole of the automatic door device is attached at once when it is attached to the opening of the building. Therefore, the assembling work can be carried out very easily, and the workability can be remarkably improved. Moreover, the effect of improving the appearance quality can be obtained. In addition, since a removable cover is attached to the front portion of the screw drive machine, there is an advantage of facilitating maintenance.

  Next, specific embodiments of the automatic door device of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall front view of an automatic door device according to the present invention, FIG. 2 is a front view showing a part of a drive main part in a cross section, and FIG. 3 is an enlarged cross-sectional view taken along line AA of FIG. FIG. 4 is a sectional view of an upper arm provided with a space in which a guide rail and a drive unit are incorporated, and FIG. 5 is a perspective view of a runner.

  In the automatic door device 1 of this embodiment, a driving device 3 and a guide rail 4 are assembled on an upper rod 2 mounted on the upper side of a building entrance, and a door (door 8) serving as a sliding door inside the upper rod 2. The runners 10, 10 that suspend the suspension) are driven by power to open and close.

  First, the upper collar 2 has a cross-sectional structure as shown in FIG. 4, wherein the upper half 2a is formed in a vertically long hollow portion in the vertical direction, and the lower half 2b has a required width on the vertical center line. A space portion to be divided is formed, and the upper surface (inner side) of the laterally facing lip portion on the lower end side constitutes a guide rail 4 exhibiting a guide surface 4a, and the entire length is made a required length. In addition, one side which becomes the front side of the said upper half part 2a is separated so that attachment or detachment is possible over the full length, and becomes the cover 5 of the front side at the time of an assembly.

  The upper eaves 2 are provided with attachment holes 2c so that the upper side portions can be attached to the upper eaves member 60 on the building side from the inner side at a required interval with attachment screws 6 or the like, and known means are provided through the attachment holes 2c. It is fixed by the mounting screw 6 (for example, via a plug).

  A screw drive type drive device 3 is provided in the central portion in the longitudinal direction of the space in the upper half 2a of the upper rod 2 and is guided by the guide rail 4 by the drive device 3 to be freely movable. The runners 10 and 10 are driven via a power transmission roller arm 7 (corresponding to the power transmission means of the present invention and corresponding to a horizontal member, hereinafter simply referred to as the power transmission arm 7) for connecting the runners 10 to each other. Has been made.

  As shown in FIG. 2, the drive device 3 includes a drive screw 31, a motor 40 with a speed reducer that drives the drive screw 31 by gear transmission, and a drive shaft 34 (34 ′) on which the drive screw 31 is supported. ), Support bearings 35 and 35 ′ thereof, and an electromagnetic clutch 42. The drive screw 31 is provided with a shaft insertion hole 32 penetrating the shaft center, and a spline shaft hole 32 a is formed at the center of the shaft insertion hole 32, and an end portion is formed in the shaft insertion hole 32. It is slidable in the axial direction and rotatably supported by drive shafts 34 and 34 ′ that are bisected and supported by the support bearings 35 and 35 ′ and inserted with the same axis. The drive shafts 34, 34 ′ slide into the spline shaft holes 32 a so that the spline shaft portions 34 a formed at the respective distal ends thereof are substantially symmetrical from both sides in the shaft insertion holes 32 of the drive screw 31. The intermediate portion is supported and supported by a bearing bush 33 fitted and installed in the shaft insertion hole 32. Further, the drive screw 31 is formed with a spiral groove 31a with a required lead on its outer peripheral portion, and the lead of the drive screw 31 on the power transmission arm 7 connecting the runners 10 and 10 to the spiral groove 31a. A plurality of power transmission rollers 7a arranged together are sequentially engaged and sent.

  The drive screw 31 formed in this way has an output gear 42a of the electromagnetic clutch 42 (the driven side of the clutch) attached to one end of the drive shafts 34, 34 '. The power is transmitted by meshing with. On the other hand, on the drive shafts 34 and 34 ′ of the drive screw 31, stop collars 36 are respectively attached to the neck portions of the drive screw 31, and between the stop collar 36 and the end of the bearing bush 33 fixed inside the drive screw 31. Return springs 37 (corresponding to the return springs of the present invention) are respectively fitted between them. Limit microswitches 38 and 38 are arranged opposite to both ends of the drive screw 31 at the neutral position. When the end of the drive screw 31 comes into contact with the end of the operation piece 38a of the microswitch 38, the power supply to the motor 40 is cut off or reversed.

  A rotary encoder 44 is attached to the end of the driven shaft 44a on the same axis as the output shaft 41 of the motor 40 on the driven side of the electromagnetic clutch 42 on the outer end side of the bearing portion 35 '. Thus, the rotational speed of the drive screw 31 can be detected, and the degree of opening of the door 8 is detected at the required rotational speed, or the opening degree can be set. For this purpose, the driven shaft 44a is provided with a gear 44b that meshes with the gear 43 on the drive shaft 34 '. Therefore, when the predetermined number of rotations is detected in advance, the operation of the drive screw 31 can be stopped and the movement of the door 8 can be stopped. In addition, the rotary encoder 44 can operate to rotate the drive screw 31 when the electromagnetic clutch 42 is in a non-excited state (a state where the motor is stopped driving). Then, by associating the rotary encoder 44 with the drive shaft 34 ′ of the drive screw 31 and the gear 44 b, the data measured by the rotary encoder 44 is stored in the control unit (not shown) in the control unit (not shown) even when the rotation encoder 44 is recovered from a power failure, for example. Stored in the memory), there is an advantage that it is not necessary to change the distance setting.

  As shown in FIG. 2, the screw drive machine as the drive device 3 is a housing that is configured between a block that forms the support bearing 35 on the left side of the drawing and a block 35 ″ that supports the motor 40. The upper part 2a of the upper collar 2 is cut out into a unit so that the part fits into the cutout part (but is not limited to this). The block forming the support bearing 35 and the block 35 ″ supporting the motor 40 are bolted to a part of the upper collar 2 so as to be disassembled so that the whole can be stably held.

  On the other hand, the power transmission arm 7 is fastened to the top tops of a pair of runners 10 and 10 which are guided by the guide rails 4 at both ends and are traversed from above by bolts 7b. It is a long member obtained by bending a plate material into an L-shaped cross section that is connected to each other, and a number of power transmission rollers 7a are arranged on the upper surface in a vertical direction with a pitch that matches the lead of the drive screw 31. It is attached toward the.

  As shown in FIG. 5, the runner 10 has two rollers 12 attached at the front and rear on both sides in the width direction, and the rollers 12 run with the left and right support members 11 in the width direction pivoted at the center. A flash door 8 having a required dimension is attached via a mounting bracket 9 by a support shaft body 14 which is attached in a state where it can swing in the direction (front and rear) and extends below a central member 13 which forms the pivotal support portion (not limited to this). ) Are attached to both top ends, and the door 8 is suspended. The drive device 3 and each electrical control device are electrically connected from a power source (not shown) via known control means. The door 8 is preferably opened and closed by a known infrared sensor.

  In the automatic door device 1 of the present embodiment configured as described above, when the power of the driving device 3 is turned on by the infrared sensor, the electromagnetic clutch 42 is energized at the same time as the motor 40 is activated and the clutch driven gear 42a is energized. Power is transmitted to the gear 43 on the meshing screw drive shaft 34 ', and the drive shaft 34' (34) rotates forward. Then, the drive screw 31 rotates forward and the power transmission roller 12 engaged with the screw groove 31a is sent by the drive screw 31, and the power transmission arm 7 provided with the power transmission roller 12 is advanced. At the same time, the rotary encoder 44 provided on the driven shaft 44a rotates to measure the rotation amount of the drive screw 31.

  The runners 10, 10 attached to the power transmission arm 7 are guided by the guide rail 4 in the upper rod 2 and move following the movement of the power transmission arm 7 to open the hanging door 8 from the closed position. It will move in the direction of the door and open. At this time, the runners 10 and 10 are supported by a roller 12 guided by the guide rail 4 at the center by a member 13 on which a support member 11 to which the roller 12 is attached is arranged on the center of the runner 10 independently. Therefore, the roller 12 operates separately along the guide surface 4a of the guide rail 4 and, as a result, each roller 12 functions to share a load according to the state of the guide surface 4a of the guide rail 4 and lifts. Move without waking up. Therefore, running is performed smoothly, the frictional resistance with the guide rail 4 is remarkably reduced, and the vehicle can be moved easily.

  When the power transmission roller 7a is sequentially sent by the drive screw 31 and the power transmission arm 7 moves, the door 8 eventually moves by a required distance to open the door, and reaches the terminal position to move further in the moving direction. However, the door 8 is prevented from moving at the end position. Then, since the power transmission roller 7a attached to the power transmission arm 7 is prevented from moving by the driving screw 31, the driving screw 31 being fed slides in the forward direction, so that the tip of the driving screw 31 Contacts the operating piece 38a of the limit switch 38 at the corresponding position, and the limit switch 38 is operated. As a result, the power supply to the motor 40 is cut off and driving is stopped. At this time, the drive screw 31 moves in the axial direction by pressing the return spring 37 (corresponding to the return spring of the present invention) fitted and mounted on the drive shaft 34 ', so that the pressing force is removed. When it is released (when driving is stopped), it is quickly pushed back by the accumulating force, retreats to a position where equilibrium is maintained by the return spring 37 similarly provided at the opposite end, and returns to the standby state.

  In order to close the door from the open state, when a certain time set by a timer or the like by a known means has elapsed, the motor 40 is switched in the reverse direction by the control unit and supplied with power, and the motor 40 is reversely driven. The screw 31 is also reversed, the engaging power transmission roller 7a is sent in the reverse direction, the runners 10 and 10 travel in the reverse direction via the power transmission arm 7, and the door 8 is closed.

  When the door is closed, when the door is closed as in the case of the opening operation, the operating piece 38a of the limit switch 38 corresponding to the position is operated at the other end of the drive screw 31, and the motor 40 is operated by the limit switch 38. Is turned off and the drive stops. Simultaneously with this stop, the return spring 37 acts to return the drive screw 31 to the standby position, as described above, so that the next operation is not hindered.

  When the drive screw 31 is slid in the axial direction, the drive shafts 34, 34 ′ cannot move in the axial direction, but the shaft insertion hole is provided between the drive shafts 34, 34 ′ and the drive screw 31. Thus, the spline shaft hole 34a in the end portion of the drive shaft 34, 34 'can slide and operate without any trouble at the spline shaft hole 32a in the portion 32.

  In the automatic door device 1 of the present embodiment, the door 8 can be automatically opened and closed by the drive device 3 composed of the screw drive machine incorporated in the upper rod 2 in this way, and overall. Since it is made compact, the installation work is facilitated by attaching the upper cage 2 provided with the driving device 3 and the guide rail 4 along the upper member 60 (框) of the door attachment portion of the building in advance. If the door 8 is suspended from the runners 10 and 10 through the mounting bracket 9 and the height is adjusted (by a known height adjusting means provided on the door mounting bracket 9), the installation work can be easily performed. It is.

  At the time of this installation work, the upper half 2a front surface of the upper rod 2 constituting portion has a cover 5 mounting structure, so that the cover 5 can be removed and the upper rod member 60 can be mounted. In the maintenance of the above, since the relationship between the connecting portions of the driving device 3 and the runner 10 is completely opened by removing the cover 5, the inspection is easy, and when the driving device 3 has a failure or the like, There is an effect that the cover 5 can be easily removed and replaced by opening the cover 5.

  Next, FIG. 6 shows another embodiment. This embodiment is basically the same as that of the above-described embodiment, but the configuration of the portion serving as the upper collar member is different. Accordingly, the same or similar parts as those of the above embodiment are denoted by the same reference numerals as those of the above embodiment, and detailed description thereof is omitted.

  In this embodiment, the portion that becomes the upper eaves member is a plurality of suspensions arranged in the middle of the end brackets 21 and 21 ′ that are partially attached to the eaves members 60 and 61 on the building side by bending a thin metal plate. The support bracket 22 and the guide rail member 4 are formed with a required length having the above-mentioned cross-sectional shape. The guide rail member 4 is opposed to each other at a required interval so that the guide surface 4a is on the inside, and the end member 21, 21 ′ and a plurality of suspension support brackets 22 arranged in the middle are used as building side fence members 60. It is supported by suspension. Moreover, the screw drive machine which is the drive device 3 is unitized in the same configuration as described above, and a member corresponding to the casing is screwed to the building side and attached. In addition, about the power transmission arm 7 attached to the door 8 side, it is the same as that of the said embodiment. Of course, the power transmission roller 7a attached to the power transmission arm 7 meshes with the drive screw of the drive device 3 and is sequentially fed.

  In the automatic door device 1 thus configured, the end brackets 21 and 21 ′ at both longitudinal ends serving as the upper eaves members are fastened and fixed at both ends to the vertical members 61 and 61 (column members) of the building opening. At the same time, the upper member 60 is fastened and fixed, and the suspension support brackets 22 are attached at a plurality of positions between the brackets 21 and 21 ′ at both ends, and the end brackets 21 and 21 ′ and the suspension support brackets 22 guide them. The rail 4 is mounted so as to be horizontal. In addition, as shown in FIG. 7, the suspension support bracket at the intermediate portion is a bent piece having a slit formed at the bottom so that the connecting portion 13a of the power transmission arm 7 attached to the top of the runner 10 can move. It is designed to intervene and join. In addition, the suspension support bracket 22 has a mounting seat piece 22a for the roof member 60 on the building side so that the level of the guide rail 4 can be adjusted, a suspension fitting 22b attached to the guide rail 4, and a suspension adjustment screw portion 22c that connects the two. It consists of

  Even if it is set as the collar part structure of embodiment comprised in this way, it can function similarly to the thing of the said embodiment. Of course, it goes without saying that the entire surface of the part that supports the suspension of the guide rail 4 is covered with a cover (not shown).

  Moreover, according to this invention, as FIG. 8 shows, it can employ | adopt as a double door. In the case of this automatic door device 1B using double doors, the drive configuration is basically the same as that of the single door. Accordingly, parts that are the same as or similar to those of the above-described embodiment are denoted by the same reference numerals as those of the above-described embodiment, and detailed description thereof is omitted.

  In this double door 8A, two screw drives having the above-described configuration as the driving device 3A (however, one (the left side in the figure) does not have a motor) are installed at both ends of the door installation portion, The output shaft (screw drive shaft 34) end of one screw drive 3 'is connected to the drive shaft 34 of the other screw drive 3 "by a connecting shaft 34A, and two motors are driven by one motor 40. Runners that attach the two doors 8A and 8A to each other by setting both screw drives 3 ′ and 3 ″ to rotate at the same time and setting the screw directions of both drive screws to be opposite to each other. 10 is attached to the power transmission arms 7 and 7 as described above, and is simultaneously opened and closed in opposite directions by the screw drivers 3 ′ and 3 ″. Which is a support bracket.

  In this case, when the doors 8A and 8A are closed and closed, when both doors are closed, the limit switch operates in the manner described above to immediately stop the rotational drive and prevent overload. Further, if the feed amount is defined by the rotary encoder, the door can be opened without being fully opened, so that there is an advantage that the opening / closing operation can be effectively performed according to the conditions of use.

  The above is a description of the basic configuration of the automatic door device according to the present invention. However, if the movement of the screw driver is controlled according to the installation location and application, an anomaly that has not been made conventionally is described. It is also possible to perform a typical opening / closing operation.

Overall front view of automatic door device according to the present invention Front view showing a part of the main drive section AA enlarged sectional view of FIG. Cross-sectional view of upper arm with space to house guide rail and drive Perspective view showing the runner mounting part The front view showing other embodiment of the automatic door device concerning the present invention. Partial sectional drawing showing the principal part of other embodiment Overall front view of an embodiment applied to a double door

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1A Automatic door apparatus 2 Upper arm 3 Drive apparatus 3 ', 3 "Screw drive machine 4 Guide rail 4a Guide surface 5 Cover 7 Power transmission arm 7a Power transmission roller 8, 8A Door 9 Door mounting bracket 10 Runner 21 End Bracket 22 Suspension support bracket 31 Drive screw 33 Bearing bush 34, 34 'Drive shaft 34A Connection shaft 36 Stop collar 37 Return spring 38 Limit switch 40 Motor 42 Electromagnetic clutch 44 Rotation encoder 44a Drive shaft

Claims (7)

Inside on the stile being set with along the opening upper member of a building, a guide rail for lowering guide suspended a screw driving machine and the door of the door opening and closing is attached is housed in approximately the same depth, the guide A horizontal member having a plurality of power transmission rollers arranged at a pitch corresponding to a lead of a drive screw of the screw drive is suspended from a plurality of runners supported by rails and freely runnable. An automatic door device characterized in that the power transmission means is connected, and the power transmission roller of the power transmission means is driven by the screw driver to open and close the door. The screw driving machine is detachably mounted by a bracket to the housing portion located on the upper side of the upper rail partitioned vertically in the box structure, in removably provided is configured pull on the front side of the mounting portion The automatic door device according to claim 1. The lower housing portion of the upper rail, a slit portion connecting portion between the plurality of power transmission roller arranged horizontal member and the runner constituting the power transmitting means over its entire length to pass is formed, The automatic door device according to claim 2 , wherein the power transmission roller is configured to be able to engage and move with a drive screw of the screw drive machine above the slit portion. Driving the drive screw of the screw driving machine, when receiving the axial thrust through the power transmission roller for engagement with the drive screw, actuates a limit switch provided in association with the movement in the axial direction The automatic door device according to claim 1 or 3 , wherein the automatic door device is configured to stop or reversely rotate. The drive screw is return spring is charged to both end portions, according to claim 1 is configured to through a power transmission roller being adapted to drive and automatically reset when the thrust of fraud is the axial direction is eliminated , 3 or 4 , the automatic door device. The screw driving machine, at the output of the drive motor, clutch provided between the drive shaft of the motor output shaft and the drive screw, with the gear conducted to the drive shaft from the driven shaft of the clutch, the driven The automatic door device according to any one of claims 1 to 4, wherein a rotary encoder is provided by extending a shaft. A detachable cover is provided on the front surface of the housing position of the housing integrated with the guide rail in a position where the screw driver is accommodated . When the cover is removed, the screw driver is incorporated in a removable manner. The automatic door device according to claim 1, wherein the automatic door device is configured.

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