JP4871206B2 - Platform door equipment - Google Patents

Description

  The present invention relates to a platform door device that is provided on a platform and forms an entrance / exit corresponding to an entrance / exit of a railway vehicle.

  As a door device installed on a platform, many side-opening slide devices have been disclosed (see, for example, Patent Document 1). However, in the case of a side-opening slide type door device, a fixed installation part is required as a door storage part, and the opening / closing position is determined in advance. There is a problem that it is difficult to deal with. As a solution to this problem, there is disclosed a side-opening slide type door device that includes a plurality of rails and selectively moves a door to flexibly form a frontage (see, for example, Patent Document 2). However, the door device described in Patent Document 2 tends to increase the cost of remodeling the platform when installed on an existing platform.

On the other hand, Patent Document 3 describes a door device of a type that opens and closes a door in the vertical direction instead of a lateral opening type. Even in this door device, the frontage can be formed flexibly by selectively opening the door.
JP-A-6-239223 JP 2004-196040 A JP 2004-268634 A

  The door device described in Patent Document 3 has a structure in which the door is stored in a recess formed in the platform, and there is a problem that the cost of remodeling the platform tends to increase when the door device is installed.

  The present invention has been created to solve such problems, and an object of the present invention is to provide a platform door device that can be easily installed on a platform.

  In order to solve the above-mentioned problems, the present invention is a platform door device provided on a platform and forming a doorway corresponding to an entrance / exit of a railway vehicle, and is provided side by side along a side edge of the platform, A plurality of doors that open and close in the vertical direction outside the side edge, a door passing step that is provided for each door and opens and closes outside the side edge of the platform, and is rotated by the opening and closing operation of the door A platform door device comprising a lever and a coupling mechanism that couples the lever and the step.

  According to this platform door device, since the door and the step are arranged outside the side edge portion of the platform, it is not necessary to provide a recess for storing the door on the platform. Therefore, the platform door device can be easily installed around the side edge of the platform without much modification work on the existing platform. And by providing the lever which rotates by the opening / closing operation | movement of a door, and the connection mechanism which connects this lever and a step, each opening / closing operation | movement of a door and a step can be interlocked with a simple structure. By interlocking, an unnecessary gap does not occur between the two during operation, and high safety is ensured.

  Further, in the present invention, the step is configured to rotate and open, and the coupling mechanism includes a step drive member that moves linearly, a step cam mechanism that converts the linear motion of the step drive member into a rotational motion of the step, It was set as the platform door apparatus characterized by providing.

  According to this platform door device, the door opening / closing operation and the step rotation opening / closing operation can be linked with a simple structure.

  Further, in the present invention, a drive slider that is connected to the door and linearly moves is provided, the lever is configured to rotate by being pressed by the drive slider, and the door has reached the vicinity of the lowest lowered position. In some cases, the platform door device is provided with a sliding surface for idling the drive slider.

  According to this platform door device, by making the drive slider run idle, it is possible to absorb a portion where the step operation and the start point and the end point of the door operation do not match.

  In the present invention, the coupling mechanism includes a biasing unit that constantly biases the step in the opening direction, and rotates the lever against the biasing force of the biasing unit when the door is lowered. Thus, the step is closed, and when the door is lifted, the step is opened by the biasing force of the biasing means.

  According to this platform door device, the opening and closing operations of the door and the step can be linked with a simple structure. Further, if a problem occurs in the coupling mechanism, the step can be opened by the urging force of the urging means. For this reason, for example, the movement of passengers to the home end is restricted by the standing step, and the safety of passengers is ensured.

  According to the present invention, the installation man-hour can be reduced when installing the platform door device, and the door and step opening / closing operations can be linked with a simple structure, thereby providing a safe and economical platform door system. .

  1 and 2 are external perspective views of the platform door device according to the present invention when viewed from the track side and when viewed from the platform side, respectively (a) is a state in which all doors are closed, and each (b ) Indicates that some doors are open.

  The platform door device 1 forms an entrance / exit corresponding to the entrance / exit of a railway vehicle, and is arranged in parallel along the side edge S of the platform PH and outside the side edge S (track side). , A plurality of doors 2 that open and close in the vertical direction, and a door passing step 3 that is provided for each door 2 and that opens and closes outside the side edge S of the platform PH (on the track side). The door 2 is a rectangular member that is long in the vertical direction, and has a structure that moves up and down on the outer side of the side edge S while the step 3 rotates upward. When the door 2 rises and closes, the upper end of the door 2 is positioned approximately at the height of the adult male's chest. In the open state, the entire door 2 is stored below the side edge S. As will be described in detail later, reference numeral 4 denotes a cover that covers the drive mechanism 5 (FIG. 8) and the like of each door 2, and has a waterproof and dustproof function of the same mechanism and the like, as well as a design with respect to the line of sight from the opposite platform. Also serves as a board.

  Normally, the doors 2 are all closed as shown in FIG. 1A and FIG. 2A, and when the vehicle enters and stops, the door 2 facing the entrance of the vehicle opens. In this embodiment, it is the structure which the some door 2 opens with respect to one entrance / exit. Although the width dimension of the door 2 is determined as appropriate, as an example, it is set to a dimension that can be opened and accommodated with respect to a vehicle entrance / exit having a frontage dimension of 1.5 meters. FIG. 3 is a plan view showing a case where a plurality of doors 2 are opened corresponding to the entrance / exit of the vehicle. FIG. 3 (a) shows a case where the vehicle stops at a normal position. 2d opens. When the same vehicle stops slightly from the normal position and cannot be handled by the doors 2a to 2d, the five doors 2a to 2e facing the entrance / exit are opened as shown in (b). . As the width dimension (pitch) of the door 2 is reduced, the entrance / exit entrance dimensions of the door 2 can be matched to the entrance / exit entrance dimensions for all vehicles having different entrance / exit positions and entrance dimensions.

  4 is an external perspective view of Step 3, and FIG. 5 is a side view illustrating the door 2 in a closed state. Step 3 is provided so as to open and close on the outer side (track side) than the side edge S of the platform PH as described above. Step 3 is a structure that opens and closes around a horizontal axis along the side edge S, and rotates around the side edge S as a rotation base end. When the door 2 is lowered, that is, when the door 2 is in the open state, the step 3 is such that the step surface 3a is horizontal and is substantially flush with the platform PH, and the tip extends toward the vehicle entrance / exit. It will be a footboard when getting on and off. This state is the closed state of step 3.

  When the door 2 is raised, that is, when the door 2 is closed, as shown in FIG. 5, the step 3 is rotated upward and in the home direction inside the home from the door 2. This state is the open state of step 3. By configuring Step 3 to rotate from the end of the platform PH toward the center of the platform, it is possible to have a function to regulate the feet when rushing in and to run psychologically because it rotates so as to rise forward. Boarding can be suppressed.

  As described above, the plurality of doors 2 that are arranged side by side along the side edge S of the platform PH and open and close in the vertical direction outside the side edge S, and the side edges of the platform PH are provided for each door 2. If the door has step 3 that opens and closes outside S, it is not necessary to provide a recess for storing the door on the platform PH, so that the platform PH is not modified so much. The platform door device 1 can be easily installed around the side edge S of the platform PH. For example, as will be described later, the installation mechanism can be easily installed by arranging the drive mechanism 5, the coupling mechanism 6, the guide rail 25, etc. of FIG. 8 in the space below the side edge portion S. If the structure is installed in the body 26 to form a single unit and is installed in the space below the side edge S, the efficiency of the installation work can be improved.

  When step 3 is formed of a flat plate, when only one of the two adjacent steps 3 rotates upward, a gap is formed at the side of the rotated step 3. When this gap is large, a pair of side plates 3b is formed in step 3, and the gap generated between adjacent steps 3 may be closed by this side plate 3b. The shape of the side plate 3b is appropriately determined according to the gap shape so as not to interfere with the door 2.

  In this embodiment, the door 2 is formed in the curved shape which becomes convex toward the track side. As an example of the curved shape, a shape having a constant radius of curvature from the upper end to the lower end is taken into consideration in view of economy and design. The center position of the radius of curvature is, for example, on the surface of the platform PH or in the vicinity of the surface. When the door 2 has a curved shape, it is desirable that the opening / closing operation is not linear movement, but is configured to rotate and open along the curved shape. That is, when the door 2 has a certain radius of curvature, the door 2 is rotated and opened around the center of curvature. Thereby, the space required for the movement of the door 2 is small, and the dynamic design is beautiful.

  When the door 2 is raised most, the upper end of the door 2 is located on the inner side of the platform with respect to the side edge S of the platform PH. In FIG. 5, the distance in the home width direction between the upper end of the door 2 and the side edge portion S is indicated by a symbol L. As described above, when the door 2 is lifted, if the upper end of the door 2 is positioned on the inner side of the home with respect to the side edge S, the upper body is regulated by the upper end of the door 2, thereby the side edge of the upper body. Protrusion from S to the track side is prevented. Moreover, since the space at the foot can be used up to the side edge portion S, the foot does not become cramped at the time of congestion or the like.

  One structural example of the door 2 will be described with reference to FIGS. Hereinafter, the surface facing the platform side with respect to both surfaces of the door 2 is referred to as an inner surface, and the surface facing the track side is referred to as an outer surface. 6, (a) is a front view of the door 2 as seen from the inner surface side, (b) is a side sectional view, and FIGS. 7 (a) and (b) are AA sectional views in FIG. 6 (a), respectively. It is BB sectional drawing. FIG. 7C is an explanatory plan view of a cross section showing a modification example when the overlap margin W is provided.

  The door 2 has a structure in which an inner panel 12 and an outer panel 13 are attached to a rectangular frame 11 made of a mold material. As the mold material constituting the frame 11, an extrusion mold material of aluminum alloy is suitable. Reinforcing beams 14 and 15 are appropriately provided on the frame 11 according to the size of the door 2. As shown in FIGS. 6 and 7, the inner panel 12 and the outer panel 13 are attached to the frame 11 by a method of fitting the edge of the panel into the groove formed in the frame 11, as well as screwing or adhesive. The method to use etc. are mentioned. The inner surface panel 12 and the outer surface panel 13 constitute a design surface, and are composed of a synthetic resin plate, a glass plate, a metal plate, or the like, and particularly an acrylic resin plate is preferable when a synthetic resin plate is used. In addition, when a colorless transparent and colored transparent synthetic resin plate or glass plate is used, the field of view on the track side can be secured. As shown in FIG. 6 (b), the outer panel 13 is attached from the upper end to the lower end of the door 2, and the inner panel 12 is attached only to a portion facing the platform.

  As described above, by constructing the door 2 from a plate-like structure having a certain shape, the manufacturing cost can be reduced and the assembly can be simplified as compared with a door structure having a variable shape such as a bellows type. Thus, an economical platform door device 1 is obtained.

  Moreover, as shown to Fig.7 (a), if the overlap margin W is provided in the side part of adjacent doors 2, the clearance gap between the doors 2 seen when the door 2 is seen by the front can be closed reliably. Therefore, the blowing of wind can be prevented. The overlap margin W here refers to the overlap margin in the width direction of the door 2 as a matter of course. In providing the overlap margin W, as shown in FIG. 7C, a structure in which only two sheets around the side portion of the door 2 are overlapped is conceivable. However, in this structure, the door 2 is shaken when subjected to a large wind pressure. Cheap. On the other hand, as shown in FIG. 7A, if the groove 16 formed on one side of the door 2 is engaged with the protrusion 17 formed on the other side, a large wind pressure is generated. Even if it receives, since the protrusion 17 and the groove | channel 16 restrict | limit at the both sides of the door 2, the blurring, bending, etc. of the door 2 are suppressed. Formation of the groove 16 and the protrusion 17 can be easily realized by using a mold (frame 11) having an appropriate cross-sectional shape. In this way, if the doors 2 are arranged side by side so as to have the overlap allowance W, the movement of the door 2 can be regulated by the adjacent door 2, so there is no need to separately provide a column or the like between the doors 2 on the platform. . Therefore, when the door 2 is opened, an entrance without a passage obstacle such as a support can be formed.

  In the overlap margin W shown in FIG. 7A, a clearance C1 in the door thickness direction is provided in consideration of manufacturing errors and assembly errors of the door 2. In FIG. 7A, a buffer member 18 made of a rubber material or the like is attached to the groove 16, and the clearance C <b> 1 in this case is expressed as a distance between the buffer member 18 and the protrusion 17. The dimension of the clearance C1 is desirably as small as possible. However, if the dimension of the clearance C1 is set to be uniformly small over the upper and lower sides of the door 2, the doors 2 interfere with each other in the overlap margin W due to a manufacturing error or an assembly error of the door 2. There is a possibility that the opening / closing operation of the door 2 may not be performed smoothly. Further, if the dimension of the clearance C1 is set to be uniformly large over the upper and lower sides of the door 2, the allowable amount of movement of the door 2 when it receives wind pressure (the amount of movement in the door thickness direction) increases.

  To solve this problem, if the clearance C1 at the upper part of the door is set smaller than the clearance C1 at the lower part of the door, the door 2 can be smoothly opened and closed, and the amount of shaking of the upper end of the door 2 that is particularly likely to shake can be suppressed. . As will be described later, since the door 2 is supported by the guide rail 25 via the guide roller 23 attached to the lower portion thereof, the lower portion of the door 2 is not easily affected by the shake due to the wind pressure. Therefore, there is no problem even if the clearance C1 at the lower part of the door is set large. The above setting of the clearance C1 can be easily realized by, for example, a method of making the thickness dimension of the buffer member 18 in the upper part of the door 2 larger than that in the lower part.

  6 (a), 6 (b) and 7 (b), door support brackets 19 extending in the vertical direction are attached to the left and right inner surfaces of the lower portion of the door 2, respectively. A support shaft 20 whose axial direction is the width direction of the door 2 is formed around the upper end and the lower end of each door support bracket 19, and a roller support bracket 21 is rotatably attached to the support shaft 20. Each roller support bracket 21 is formed with a pair of roller shafts 22 whose axial direction is the width direction of the door 2, and a guide roller 23 is rotatably attached to each roller shaft 22. That is, the pair of guide rollers 23 has a structure that can rotate integrally around the support shaft 20 via the roller support bracket 21. Further, a drive transmission bracket 24 having a long hole 37 of a cam mechanism 28 to be described later is attached to the inner surface side of the beam 15 provided at the lower portion of the door 2.

  Next, the drive mechanism 5 of the door 2 will be described mainly with reference to FIGS. 8 is an exploded perspective view showing a part of the drive mechanism 5 and the guide rail 25. In FIG. 9, (a) is a side view of the drive mechanism 5, and (b) shows a state in which the door 2 is supported by the guide rail 25. A side view and FIG. 10 are CC sectional views in FIG.

  The drive mechanism 5 and the guide rail 25 are installed in the lower space of the side edge S of the platform PH, and a vertically long casing 26 as shown in FIG. 8 including the connecting mechanism 6 (FIG. 11) described later. To be stolen. After these mechanisms are installed, the cover 4 is attached to the front opening of the housing 26. The cover 4 is provided with notches 4a and 4b for allowing the door support bracket 19 and the bracket 24 to pass therethrough.

  A pair of guide rails 25 are attached to the inside of the housing 26 so as to extend in the vertical direction. The guide rail 25 is curved corresponding to the curved shape of the door 2 so that the door 2 (FIG. 9B) draws a predetermined rotation trajectory. As shown in FIG. By sandwiching the guide rail 25 with the guide roller 23, the door 2 rotates and opens along the guide rail 25.

  As described above, if the guide rail 25 is held between the guide rollers 23 to guide the rotation opening and closing of the door 2, an opening / closing guide structure with a small number of parts and excellent assemblability can be obtained. Further, as described above, the pair of guide rollers 23 has a structure that can rotate integrally around the support shaft 20, so that when the guide rail 25 is clamped, the guide roller 25 is integrated around the clamp section. It will be in a state in which a general swing is possible. Therefore, even when the guide rail 25 is locally deformed, the guide roller 23 swings around the pinching portion of the guide rail 25 so as to follow the deformed portion, and the deformation of the guide rail 25 is reduced. Absorb. Instead of independently changing each guide roller 23, the pair of guide rollers 23 are integrally swung so that the rotation locus of the door 2 can be maintained normally and the door 2 can be smoothly opened and closed. .

  The drive mechanism 5 includes a drive slider 27 that moves linearly, and a cam mechanism 28 that couples the drive slider 27 and the door 2 and converts the linear motion of the drive slider 27 into the rotational motion of the door 2. In the housing 26, a support plate 29 is attached so as to extend in the vertical direction, and pulleys 30 and 31 are attached above and below the support plate 29. Between the pulleys 30 and 31, a wire 32 to which a drive slider 27 is fixed is wound around. The wire 32 is wound around a winding drum 34 that is attached to an output shaft of a motor 33 that is a driving source in the middle in the vertical direction. Although not shown, a guide member for guiding the direction of the wire 32 is appropriately provided on the path of the wire 32. A slider guide rail 35 for guiding the linear movement of the drive slider 27 is attached to the support plate 29 so as to extend in the vertical direction. As shown in FIG. 10, a part of the drive slider 27 is a slider guide rail. 35 is slidably fitted.

  A cam pin 36 projects from one side of the drive slider 27, and the cam pin 36 is engaged with a cam groove (long hole) 37 formed in the bracket 24 of the door 2 as shown in FIG. Match. These cam pins 36 and cam grooves 37 constitute the cam mechanism 28 described above. The cam groove 37 may be formed on the drive slider 27 side, and the cam pin 36 may be provided on the door 2 side.

  As described above, when the motor 33 rotates forward and backward, the wire 32 rotates forward and backward by the winding drum 34, and the drive slider 27 is guided by the slider guide rail 35 and linearly moves up and down. At this time, the cam pin 36 presses the hole wall while moving in the cam groove 37, so that the door 2 is guided by the guide rail 25 to rotate and open. As described above, if the guide rail 25 is curved, the drive slider 27 moves linearly, and the cam mechanism 28 converts the linear motion of the drive slider 27 into the rotational motion of the door 2, the door 2 is When rotating and opening, the drive mechanism 5 has a small number of parts and is excellent in assembling.

  Next, the interlocking structure between the door 2 and step 3 will be described. 11 and 12 are a side view and a side action view of the lever 38 and the coupling mechanism 6, respectively. As shown in FIG. 11, a lever 38 is attached below the housing 26 shown in FIG. 8 so as to be rotatable about a horizontal rotation axis 39. A rod support bracket 40 is attached above. The lever 38 is made of a member formed in a substantially V shape with the periphery of the attachment portion to the rotating shaft 39 as a base end, and one end of a push-pull cable 41 is attached to the tip of one arm 38a. A pressing pin 42 protrudes from the other side surface of the driving slider 27 described above. When the driving slider 27 is lowered to the vicinity of the lower limit position thereof, that is, before the end of the lowering of the door 2, the pressing pin 42 is provided. Contacts the other arm 38b to rotate the lever 38.

  A rod 43 is attached to the rod support bracket 40 through a pair of vertically spaced rod guides 44 so as to advance and retract. Between the pair of rod guides 44, a rod 43 is formed with a flange 43a, and a compression coil spring 45 is externally fitted to the rod 43 across the rod guide 44 and the flange 43a on the lower side. That is, the compression coil spring 45 has a biasing force that always pushes the rod 43 upward through the flange 43a, and is a member that constitutes a biasing means that always biases the step 3 in the opening direction. The other end of the push-pull cable 41 is attached to the lower end of the rod 43, and a cam pin 46 is provided on the upper end of the rod 43. For example, as shown in FIG. 8, the step 3 is rotatably attached around a support shaft 48 formed on the top plate 47 of the housing 26, and as shown in FIG. 11, the cam groove 50 of the bracket 49 attached to the lower surface thereof. The cam pins 46 are engaged with each other. The cam pin 46 and the cam groove 50 constitute a step cam mechanism 51 that converts the linear motion of the rod 43 into the rotational motion of Step 3. The push-pull cable 41, the rod 43 as a step drive member that moves linearly, the compression coil spring 45, and the step cam mechanism 51 are the main components of the coupling mechanism 6.

  The interlocking action between the door 2 and step 3 will be described. As shown in FIG. 11, when the door 2 is raised, the pressing pin 42 and the lever 38 are not in contact with each other, and the rod 43 moves upward by the urging force of the compression coil spring 45, so that the push-pull cable 41 pulls the lever 38 counterclockwise in FIG. 11, and the cam pin 46 is positioned on one end side of the cam groove 50 so that the step 3 is rotated upward.

  When the door 2 is lowered from the state of FIG. 11, the pressing pin 42 comes into contact with the middle of the arm 38b as shown in FIG. 12 (a), and then the pressing pin 42 is moved to the arm as shown in FIG. 12 (b). By depressing 38b, the lever 38 rotates clockwise, the push-pull cable 41 pulls the rod 43 against the urging force of the compression coil spring 45, and the step 3 is closed via the step cam mechanism 51. When the pressing pin 42 reaches the lowest position, step 3 is completely closed (state shown in FIG. 12C). When the door 2 moves upward, the urging force of the compression coil spring 45 is actuated by the pressing pin 42 moving upward, the rod 43 is pushed up, and the step 3 rotates upward.

  Here, as shown in FIG. 12C, when the pressing pin 42 (drive slider 27) is at the lowest position, the pressing pin 42 is in contact with the sliding surface 38 c formed on the arm 38 b of the lever 38. Yes. When the pressing pin 42 is in contact with the sliding surface 38c, the sliding surface 38c forms a surface parallel to the linear movement locus of the pressing pin 42. That is, the sliding surface 38c is formed in the vicinity of the lowest lowered position of the door 2 in order to release the pressing function of the lever 38 in the drive slider 27 and make the drive slider 27 run idle. As a result, it is possible to absorb the amount of difference between the start point and the end point of the operation of Step 3 and the operation of the door 2.

  As described above, if the lever 38 that rotates by the opening / closing operation of the door 2 and the connecting mechanism 6 that connects the lever 38 and the step 3 are provided, the door 2 and the step 3 can be opened and closed with a simple structure. Operations can be linked. Moreover, if it is set as the structure provided with the step drive member (rod 43) which moves linearly as the connection mechanism 6, and the step cam mechanism 51 which converts the linear motion of this step drive member (rod 43) into the rotational motion of a step, Furthermore, the opening / closing operations of the door 2 and step 3 can be linked with a simple structure. Furthermore, the use of the push-pull cable 41 increases the degree of freedom in the layout of the lever 38 with respect to the step 3 and the rod 43.

  In addition, a biasing means (compression coil spring 45) that constantly biases the step 3 in the opening direction is provided. When the door 2 descends, the lever 38 is moved against the biasing force of the biasing means (compression coil spring 45). If step 3 is closed by rotating and door 3 moves upward, step 3 is opened by the biasing force of biasing means (compression coil spring 45), and each door 2 and step 3 can be opened and closed with a simple structure. Operations can be linked. In an emergency such as when the push-pull cable 41 is cut, step 3 is rotated upward by the biasing force. Therefore, even when the device is out of order, the step 3 that stands up restricts the movement of passengers to the home end, and the safety of passengers is ensured.

  The preferred embodiments of the present invention have been described above. The present invention is not limited to the one described in the drawings, and design changes can be made without departing from the spirit of the present invention. For example, FIG. 13 shows an example in which a link arm 52 is used instead of the push-pull cable 41, and both ends of the link arm 52 are rotatably connected to the lower end of the rod 43 and the tip of the arm 38a. Also with this structure, the rotational movement of the lever 38 and the linear movement of the rod 43 can be smoothly linked.

  Further, the manner of attaching the urging means is not limited to the method in which the compression coil spring 45 is externally fitted to the rod 43. For example, between the bottom surface side of Step 3 and the housing 26 side shown in FIG. It is good also as a structure which interposes a compression coil spring.

It is an external appearance perspective view at the time of seeing the platform door device concerning the present invention from the track side, (a) is in the state where all the doors were closed, and (b) is in the state where some doors were opened. It is an external appearance perspective view at the time of seeing the platform door device concerning the present invention from the platform side, (a) is in the state where all the doors were closed, and (b) is in the state where some doors were opened. It is a top view which shows the case where a some door is opened corresponding to the entrance / exit of a vehicle. It is an external appearance perspective view of a step. It is side surface explanatory drawing of the state which closed the door. (A) is the front view of the door seen from the inner surface side, (b) is a sectional side view of a door. (A), (b) is AA sectional drawing and BB sectional drawing in Fig.6 (a), respectively. (C) is a plane cross-sectional explanatory drawing which shows the modification at the time of providing an overlap margin. It is a disassembled perspective view which shows a part of drive mechanism and a guide rail. (A) is a side view of a drive mechanism, (b) is a side view which shows the state by which the door was supported by the guide rail. It is CC sectional drawing in Fig.9 (a). It is a side view of a lever and a connection mechanism. It is a side action figure of a lever and a connection mechanism. It is a side view of a lever and a connection mechanism, and is a figure showing an example using a link arm for a connection mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Platform door apparatus 2 Door 3 Step 4 Cover 5 Drive mechanism 6 Connection mechanism 23 Guide roller 25 Guide rail 27 Drive slider 28 Cam mechanism 38 Lever 41 Push pull cable 42 Push pin 43 Rod 45 Compression coil spring 51 Step cam mechanism

Claims (4)

A platform door device that is provided on the platform and forms an entrance / exit corresponding to the entrance / exit of the railway vehicle,
A plurality of doors arranged side by side along the side edge of the platform and opened and closed in the vertical direction outside the side edge;
A door passing step which is provided for each door and which opens and closes outside the side edge of the platform;
A lever that rotates by opening and closing the door;
A coupling mechanism coupling the lever and the step;
A platform door device comprising: The step consists of a structure that opens and closes.
The platform door device according to claim 1, wherein the coupling mechanism includes a step drive member that moves linearly and a step cam mechanism that converts a linear motion of the step drive member into a rotational motion of the step. A drive slider connected to the door and moving linearly;
The lever is configured to rotate while being pressed by the drive slider, and includes a sliding surface for causing the drive slider to idle when the door reaches a position near the lowest position. The platform door apparatus of Claim 1 or Claim 2. The coupling mechanism includes a biasing means that constantly biases the step in the direction of opening,
When the door is lowered, the step is closed by rotating the lever against the urging force of the urging means,
The platform door device according to any one of claims 1 to 3, wherein the step is opened by an urging force of the urging means when the door is raised.

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