JP5887176B2 - Platform door equipment - Google Patents

Description

  The present invention relates to a platform door device.

  2. Description of the Related Art Conventionally, as a platform door device installed on a platform, a double-sliding platform door device having a double door is known as disclosed in Patent Document 1 below. Specifically, the platform door device disclosed in Patent Document 1 is configured as a movable fence, and includes a door bag body standing on the platform and a double door that can be advanced from the door bag body. . A drive pulley and a driven pulley are attached to the side surface of the first door of the double doors, and an end belt having one end fixed inside the door pocket body is attached to the drive pulley and the driven pulley. It is wrapped around. This belt extends in the door pocket and the recess formed in the side surface of the first door in the door advancing direction, and is wrapped around a driven pulley provided on the door end side of the first door. . The belt extends in the recess direction toward the door-side drive pulley, and is wound around a drive pulley fixed to the output shaft of the motor provided on the door-side of the first door. It is folded back. The other end of the belt folded back by the drive pulley is fixed to a belt fixing member that extends again in the door advance direction and is fixed in the door pocket. The second door is connected to a portion of the belt between the driving pulley and the driven pulley via a connecting metal fitting. For this reason, the second door is driven at twice the speed of the first door.

JP 2004-169540 A

  In the platform door device disclosed in Patent Document 1, a single belt having both ends fixed to a door pocket body is used, and the belt is wound around two portions of the driving pulley and the driven pulley at an intermediate portion of the belt. By adopting the configuration, the first door and the second door can be interlocked with a simple configuration. However, in this configuration, since it is necessary to fix the motor to the first door, there is a problem that the first door becomes heavy and it is difficult to reduce the thickness. Moreover, since both the driving pulley and the driven pulley are provided on the first door and the driving pulley and the driven pulley are configured as a moving pulley, there is a problem that the belt tension adjustment work is not easy.

  Therefore, the present invention has been made in view of the above-described prior art, and an object of the present invention is to link two door bodies without using a moving pulley and without providing motors on both door bodies. Is to realize a driving structure.

In order to achieve the above object, the present invention provides a first door body that is movable in a first lane, a second door body that is movable in a second lane, and the first door body. A first lane door drive unit for driving, and a second lane door drive unit for driving the second door body. The first lane door drive unit includes a motor fixed to the fixed body, and a drive shaft of the motor. A first driving pulley provided; a first driven pulley rotatably supported on a shaft fixed to the fixed body; and the first door body connected to the first driving pulley and the first driven pulley. A second belt pulley provided on a transmission shaft that is driven by the driving force of the first driven pulley, and a fixed body. A second driven pulley rotatably supported on a fixed shaft; A second belt member to which the second door member was wound around concatenated and the second drive pulley and the second driven pulley, have a, wherein a pulley diameter of the first driven pulley second driving pulley pulley diameter is the same der Ru platform door device.

  In the present invention, a first lane door drive unit that drives the first door body and a second lane door drive unit that drives the second door body are provided, and the motor and the first driven pulley of the first lane door drive unit are fixed. In the second lane door drive unit, the second drive pulley is provided on the transmission shaft that receives the driving force of the first driven pulley, and the second driven pulley is fixed to the fixed body. Therefore, it is not necessary to provide a motor for any door. Moreover, the movement range of a 1st door body and a 2nd door body can be set arbitrarily. Moreover, in the second lane door drive unit, the drive pulley (second drive pulley) is provided on the transmission shaft driven by the driven pulley (first driven pulley) of the first lane door drive unit, and the first driven pulley Since it becomes the structure driven, it can suppress that the mechanism which interlock | cooperates a 1st lane door drive part and a 2nd lane door drive part is complicated. Further, since neither the driving pulley nor the driven pulley is a moving pulley, the belt tension adjustment work can be easily performed.

  The transmission shaft may be constituted by an output shaft of a speed reducer that receives the rotation speed of the first driven pulley and decelerates the input rotation speed at a predetermined ratio.

  In this aspect, in the speed reducer, the ratio of the moving speed of the second door body to the moving speed of the first door body is determined by setting the rotation speed of the output shaft with respect to the input rotation speed. Therefore, the ratio of both moving speeds can be arbitrarily set by appropriately selecting the configuration of the speed reducer.

  As described above, according to the present invention, it is possible to provide a platform door device capable of moving two door bodies at a set arbitrary speed while suppressing the complexity of the configuration.

It is the front view which looked at the platform door apparatus concerning the embodiment of the present invention from the platform inner side. (A) In the said platform door apparatus, it is a conceptual diagram which shows the state in which a door body exists in a closed position, (b) It is a conceptual diagram which shows the state in which a door body exists in an open position. (A) The structure of the 1st lane in the said platform door apparatus is shown, (b) The structure of the 2nd lane in the said platform door apparatus is shown, (c) The front view which shows the structure of the 3rd lane in the said platform door apparatus. is there. It is a figure for demonstrating the driving force transmission mechanism between the 1st belt member and the 2nd belt member in the said platform door apparatus.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, a platform door device (hereinafter simply referred to as a “home door device”) 10 according to this embodiment is suspended from a structure (not shown) fixed above the platform. And is configured as a screen door device that divides the space on the platform into the track side and the platform inside. That is, a fixed structure is provided above the platform, which is configured by combining a number of steel materials such as H-shaped steel and is arranged along the track-side edge of the platform. Supported by this structure. A header box (not shown) in which a device for driving and controlling the door bodies 18 and 19 is fixed to the lower end portion of the structure, and the door bodies 18 and 19 extend downward from the header box. It is provided as follows. That is, the header box is arranged above the entrance for opening and closing the door bodies 18 and 19.

  By arranging the plurality of platform door devices 10 in the direction along the track, at least a range where the train stops in the platform is divided into the track side and the platform inside.

  The platform door device 10 opens and closes a plurality of (two in the illustrated example) wall bodies 17 and 17 arranged at intervals in a direction along the edge of the platform, and a doorway between the wall bodies 17 and 17. For this purpose, a plurality of (four in the illustrated example) door bodies 18 and 19 and a drive unit 20 for opening and closing the door bodies 18 and 19 are provided.

  As shown in FIGS. 2A and 2B and FIGS. 3A to 3C, the platform door device 10 includes two lanes (a first lane 21 and a first lane 21) that are moving lanes of the door bodies 18 and 19. 2 lanes 22) and a third lane 23, which is a lane in which the wall bodies 17, 17 are arranged, and these lanes 21, 22, 23 are in a direction along the track (moving direction of the door body). Are shifted in a direction orthogonal to the direction. The first lane 21 is located closest to the track, and the third lane 23 is farthest from the track. The second lane 22 is located between the first lane 21 and the third lane 23.

  The plurality of door bodies 18 and 19 include first door bodies 18 and 18 provided to be movable in the first lane 21 and second door bodies 19 and 19 provided to be movable in the second lane 22. ing. Two each of the first door body 18 and the second door body 19 are provided, and the pair of first door bodies 18 and the pair of second door bodies 19 are both sliding doors. Yes. And the wall bodies 17 and 17 are located in the platform inner side with respect to the 1st door body 18 and the 2nd door body 19. As shown in FIG. In other words, the door bodies 18 and 19 of the first lane 21 and the second lane 22 are arranged at positions shifted in the thickness direction with respect to the plurality of wall bodies 17 and 17. And the 1st door body 18 and the 2nd door body 19 are arrange | positioned so that the different lanes 21 and 22 may be opened and closed.

  The drive unit 20 includes a first lane door drive unit 25 that drives the first door body 18 and a second lane door drive unit 26 that drives the second door body 19.

  As shown in FIG. 3A, the first lane door drive unit 25 includes a motor 25a fixed in the header box, a first drive pulley 25b provided on the drive shaft of the motor 25a, and a header box. A first driven pulley 25c rotatably supported on a fixed shaft; and an endless first belt member 25d wound around the first driving pulley 25b and the first driven pulley 25c.

  Each of the motors 25a is fixed to a fixing member S1 fixed so as to hang down from a beam material constituting a structure fixed to the station building. The rail (first rail) 21a of the first lane 21 is also fixed to these fixing members S1. The 1st rail 21a guides the 1st door body 18, and the door wheel 21c provided in the door hanger 21b which suspends the 1st door body 18 rolls on this 1st rail 21a. The first rail 21a has a closed position where the first door body 18 is located at the center between the pair of wall bodies 17 and 17 and an open position where the first door body is located at a position where the first door body overlaps the wall bodies 17 and 17. It is configured to be able to move between.

  The door hanger 21b is provided with a metal support member 21d that supports the metal hardware connected to the first belt member 25d. The door hanger 21b of the first door body 18 on the right side in FIG. 3A is connected to the upper span of the first belt member 25d, and the door hanger 21b of the first door body 18 on the left side in FIG. It is connected to the lower span of the belt member 25d. That is, the first door body 18 is connected to the first belt member 25d.

  As shown in FIG. 4, the first driven pulley 25 c of the first lane door drive unit 25 is fixed to a shaft 21 e that rotates integrally with the driven pulley 25 c, and this shaft 21 e is disposed in the second lane 22. It is configured as an input shaft of the reduction gear 28. The speed reducer 28 outputs from the transmission shaft 28a a driving force having a rotational speed that is decelerated at a predetermined ratio with respect to the rotational speed of the first drive pulley 25b. This predetermined ratio is appropriately selected according to the movement stroke of the first door body 18 and the movement stroke of the second door body 19.

  As shown in FIG. 3 (b), the second lane door drive unit 26 rotates on the shaft fixed to the second drive pulley 26a provided on the transmission shaft 28a as the output shaft of the speed reducer 28 and the header box. The second driven pulley 26b is freely supported, and the second driving pulley 26a and the second belt member 26c wound around the second driven pulley 26b are provided. That is, the second drive pulley 26a causes the second belt member 26c to travel using the first driven pulley 25c as a drive source. That is, in the 1st lane door drive part 25 and the 2nd lane door drive part 26, the drive system of the door bodies 18 and 19 is a belt drive system.

  The shaft of the second driven pulley 26b and the speed reducer 28 are fixed to a fixing member S2 that is fixed so as to hang down from the beam material constituting the structure fixed to the station building. A rail (second rail) 22a of the second lane 22 is also fixed to these fixing members S2. The 2nd rail 22a guides the 2nd door body 19, and the door wheel 22c provided in the door hanger 22b which suspends the 2nd door body 19 rolls on this 2nd rail 22a. The second rail 22a has a closed position where the second door body 19 is close to the wall bodies 17, 17 between the pair of wall bodies 17, 17, and a position where the second door body 19 overlaps the wall bodies 17, 17. It is comprised in the length which can move between the open positions which are located. That is, since the driving force of the first door body 18 is transmitted to the second door body 19 via the speed reducer 28, the movement stroke of the second door body 19 is shorter than the movement stroke of the first door body 18. (For example, about a half). The closed position of the second door body 19 is a position between the closed position of the first door body 18 and the wall bodies 17 and 17.

  The door hanger 22b of the second door body 19 is provided with a metal fitting support member 22d that supports the metal fitting connected to the second belt member 26c. The door hanger 22b of the right second door body 19 in FIG. 3B is connected to the upper span of the second belt member 26c, and the door hanger 22b of the left second door body 19 in FIG. The belt member 26c is connected to the lower span. That is, the second door body 19 is connected to the second belt member 26c.

  As shown in FIG. 3C, the third lane 23 is also provided with a rail (third rail) 23a. In this embodiment, both the pair of wall bodies 17 and 17 are connected to the third rail 23a. It is comprised as the emergency escape door 30 (refer FIG. 1) which can be slid manually along.

  The 3rd rail 23a functions as a guide member when sliding the wall bodies 17 and 17 comprised as this emergency escape door 30, This 3rd rail 23a comprises the structure fixed to the station building. It is being fixed to fixing member S3 fixed so that it may hang down from the beam material to perform.

  A door wheel 23c provided on a hanger 23b for suspending the wall bodies 17, 17 (emergency escape door 30) rolls on the third rail 23a. The hanger 23b is comprised by the member of the same structure as the door hanger 21b and 22b which suspends the door bodies 18 and 19. FIG. In addition, if the lock member (illustration omitted) which locks the doorwheel 23c is provided, the wall bodies 17 and 17 can be comprised not as a movable wall body but as a fixed wall body (what is called a FIX door).

  As shown in FIG. 1, the wall bodies 17 and 17 are provided with a manual unlocking mechanism 31 for releasing the lock of the locked wall body 17. The manual unlocking mechanism 31 is for moving the lock member 32 between the locking position for locking the wall bodies 17 and 17 and the unlocking position for releasing the lock. A handle 31a that can be operated from the track side with respect to the walls 17 and 17 and a keyhole 31b that can be unlocked from the inside of the platform with respect to the walls 17 and 17 are included. The walls 17 and 17 are normally locked, but are locked by moving the lock member 32 to the unlocked position by operating the handle 31a or operating the key hole 31b with a predetermined key (not shown). The wall bodies 17 and 17 can be made slidable.

  The drive unit 20 of the platform door device 10 according to the present embodiment drives the door bodies 18 and 19 in a direction along the wall bodies 17 and 17 so as to open and close the entrance formed between the wall bodies 17 and 17. . That is, the first door body 18 and the second door body 19 are both movable between the closed position and the open position, and the door bodies 18 and 19 are opened and closed by the driving force of the motor 25a. .

  As described above, in the present embodiment, the platform door device 10 includes the first lane door driving unit 25 that drives the first door body 18 and the second lane door driving unit 26 that drives the second door body 19. The motor 25a and the first driven pulley 25c of the first lane door drive unit 25 are fixed to the fixing member S1, and in the second lane door drive unit 26, the second drive pulley 26a is the first driven pulley 25c. The second driven pulley 26b is fixed to the fixed member S2 and is provided on the transmission shaft that receives the driving force. For this reason, it is not necessary to provide a motor in any of the door bodies 18 and 19. Moreover, the movement range of the 1st door body 18 and the 2nd door body 19 can be set arbitrarily. Moreover, in the second lane door drive unit 26, the drive pulley (second drive pulley) 26a is provided on the transmission shaft 28a that is driven by the driving force of the driven pulley (first driven pulley) 25c of the first lane door drive unit 25. Since it is configured to be driven by the first driven pulley 25c, it is possible to prevent the mechanism for interlocking the first lane door drive unit 25 and the second lane door drive unit 26 from being complicated. Further, since the driving pulleys 25b and 26a and the driven pulleys 25c and 26b are not moving pulleys, the tension adjustment work of the belt members 25d and 26c can be easily performed.

  Moreover, in this embodiment, the transmission shaft 28a is comprised by the output shaft of the reduction gear 28, and the speed of movement of the 1st door body 18 is set in the reduction gear 28 by setting the rotation speed of the output shaft with respect to input rotation speed. The ratio of the moving speed of the second door body 19 with respect to is determined. Therefore, the ratio of both moving speeds can be arbitrarily set by appropriately selecting the configuration of the speed reducer 28.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the example in which the pair of first door bodies 18 and the pair of second door bodies 19 of the platform door device 10 are configured as double-opening sliding doors has been described, but the present invention is not limited thereto. . For example, the first door body 18 and the second door body 19 of the home door device 10 may be configured as a one-way sliding door. Moreover, although the platform door apparatus 10 demonstrated the structure provided with the 1st door body 18 and the 2nd door body 19, it is not restricted to this. For example, it is good also as a structure which increases a lane and is provided with the door body of 3 or more lanes.

Moreover, although the said embodiment demonstrated the example in which the axis | shaft 21e of the 1st driven pulley 25c was comprised as an input shaft of the reduction gear 28, it is not restricted to this .

  In the embodiment, the pair of wall bodies 17 and 17 are suspended from the rail (third rail) 23a in the platform door device 10, but the pair of wall bodies 17 and 17 are fixed in the header box. It is good also as a structure which is fixed to the fixed member and does not slide.

  Moreover, although the said embodiment demonstrated the example in which the pair of wall bodies 17 and 17 were comprised as the sliding door type emergency escape door 30 in the platform door apparatus 10, it is not restricted to this, The emergency escape door 30 is a hinged door. It may be configured as an equation.

DESCRIPTION OF SYMBOLS 10 Platform door apparatus 17 Wall body 18 1st door body 19 2nd door body 20 Drive part 21 1st lane 21a 1st rail 22 2nd lane 22a 2nd rail 23 3rd lane 23a 3rd rail 25a Motor 25b 1st drive Pulley 25c First driven pulley 25d First belt member 26a Second drive pulley 26b Second driven pulley 26c Second belt member 28 Reducer 28a Transmission shaft

Claims (2)

A first door movably provided in the first lane;
A second door movably provided in the second lane;
A first lane door drive unit for driving the first door body;
A second lane door drive unit for driving the second door body,
The first lane door drive unit includes a motor fixed to a fixed body, a first drive pulley provided on a drive shaft of the motor, and a first driven pulley rotatably supported on a shaft fixed to the fixed body. And a first belt member connected to the first door body and wound around the first drive pulley and the first driven pulley,
The second lane door driving unit includes a second driving pulley provided on a transmission shaft driven by receiving a driving force of the first driven pulley, and a second driven rotatably supported on a shaft fixed to a fixed body. It possesses a pulley, a second belt member in which the second door member is wound around the coupled and the second drive pulley and the second driven pulley, and
Pulley diameter of the said pulley diameter of the first driven pulley second drive pulley platform door device to be the same as.   2. The platform door device according to claim 1, wherein the transmission shaft is configured by an output shaft of a speed reducer that receives the rotation speed of the first driven pulley and decelerates the input rotation speed at a predetermined ratio. .

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