JP2009051270A - Platform door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a platform door device which can save a storage space below a platform when a door is vertically opened and closed. <P>SOLUTION: The platform door device is arranged in parallel to the side end of the platform PH. The platform door device is provided at a rising/falling door 2 which draws a circular movement trajectory, and a housing 70 which is installed below the platform PH. The platform door device is equipped with a driving slider 27 which vertically moves, and a link 36 which converts the up-and-down movement of the driving slider 27 into the rotating movement of the door 2. One end of the link 36 is rotatably coupled with the lower part of the door 2. At the other end, the link 36 is cam-coupled with a guide cam groove 51 for positioning formed so as to be inclined toward the driving slider 27 and the movement trajectory of the driving slider 27 by the engagement of pins or grooves. <P>COPYRIGHT: (C)2009,JPO&INPIT

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 discloses a door device of a type that opens and closes a door in a 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

  In the case of a structure that opens and closes the door in the vertical direction as in the door device of Patent Document 3, the storage space of the door is below the platform. An object of the present invention is to provide a platform door device that requires a small storage space under the platform when the door is opened and closed in the vertical direction.

  In order to solve the above-mentioned problems, the present invention is a platform door device provided on a platform and forming an entrance / exit corresponding to an entrance / exit of a railway vehicle, which is provided side by side along a side edge of the platform, An elevating door that draws an arcuate trajectory, a drive slider that is attached to a fixed member installed below the platform and moves up and down, and a link that converts the vertical movement of the drive slider into the rotational movement of the door The link has one end rotatably coupled to the lower portion of the door, and is inclined with respect to the drive slider and the movement locus of the drive slider by fitting a pin and a groove on the other end side, respectively. The platform door device is characterized in that the cam is coupled to a guide cam groove for positioning formed as described above.

  According to this platform door device, the guide cam groove is formed so as to be inclined with respect to the movement locus of the drive slider, whereby the stroke angle of the link with respect to the raising and lowering door can be increased, and the amount of standing of the link can be increased. The door movement stroke can be increased. Accordingly, the height of the door itself can be reduced, the apparatus can be made compact, and the storage space below the platform can be reduced.

  In the present invention, the guide cam groove is formed so as to approach the door side as it goes upward.

  According to this platform door device, since the link can be erected when the door is raised, the bending stress generated in the link due to the weight of the door can be reduced.

  According to the present invention, the apparatus can be made compact and the storage space for the door below the platform can be small.

  FIG. 1 and FIG. 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, showing a state in which some doors are opened.

  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 includes a panel 40 and a door frame 41 that is a frame of the panel 40. At the same time that Step 3 rotates upward, the door 2 moves up and down outside the side edge S. 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.

  Normally, the doors 2 are all closed as shown in part A of FIG. 1 and FIG. 2, and when the vehicle enters and stops, the door 2 facing the entrance of the vehicle is like part B of FIG. 1 and FIG. Open to. 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 an explanatory side view of the door 2 in a closed state. As described above, the step 3 is provided so as to open and close outside the side edge S of the platform PH (on the track side). 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 open, 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. Note that a specific structure of the interlocking mechanism that interlocks the lifting / lowering operation of the door 2 and the opening / closing operation of Step 3 will be omitted.

  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, by arranging the drive mechanism 5 (FIG. 8 and the like), the guide rail 6 and the like in the space below the side edge S, an easy installation work can be performed. If the structure is installed in a single unit and 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 shape with a certain radius of curvature, the door 2 is rotated around the center of curvature to open and close the movement locus of the door 2 in an arc shape. 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.

  Next, structural examples relating to the door 2 and the guide frame 25 will be described with reference mainly 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. 6A and 6B are side sectional views of the door 2 and the drive mechanism 5. FIG. 6A shows a state in which the door 2 is closed, and FIG. 6B shows a state in which the door 2 is opened. FIG. 7 is a cross-sectional view taken along the line CC in FIG.

  The door 2 is a plate-like structure in which a panel 40 is fitted in a door frame 41 as shown in FIG. The door frame 41 is configured, for example, as a frame in which mold materials (such as aluminum alloy extrusion mold materials) are assembled in a rectangular shape. The panel 40 constitutes a design surface and is made of a synthetic resin plate, a glass plate, a metal plate, or the like. In particular, when a synthetic resin plate is used, an acrylic resin plate is preferable. In addition, when a colorless transparent and colored transparent synthetic resin plate or glass plate is used, the visibility to the track side can be secured.

  In FIG. 6, a boss 42 having an axial direction in the door width direction is provided in the vicinity of the central portion of the lower frame of the door frame 41 in the door width direction (backward to front side in FIG. 6). On the other hand, a boss hole 37 that engages with the boss 42 is formed on one end side of the link 36 of the drive mechanism 5, and the link 36 is rotatably attached to the door 2 with the boss 42 as a rotation center. As shown in FIG. 7, the door frame 41 includes a guide portion G that is inserted into a concave portion of a U-shaped guide frame 25 (see also FIG. 2). The surface of the guide portion G on the home side and the track side is provided with four rollers 38, 39, 38, 39 in total, each having two height positions (up and down directions in FIG. 6A). The roller 38 is in contact with the inner surface 25r of the guide frame 25 on the track side, and the roller 39 is in contact with the inner surface 25p of the home side. As described above, the rollers 38 and 39 are brought into contact with the inner surfaces 25r and 25p of the guide frame 25, thereby realizing a smooth raising and lowering operation of the door 2 with respect to the guide frame 25.

  In the platform door device 1, a gap D is provided between adjacent doors 2 a and 2 b as shown in FIG. 7 in order to prevent the vertical opening and closing operations of the doors 2 from interfering with each other. However, if this gap D is provided, problems such as passing a draft or impairing the design are caused. Therefore, in this embodiment, a cover 60 that covers the gap D is formed on the door frame 41. The cover 60 only needs to be formed on one of the door frames 41 of the adjacent doors 2 a and 2 b, and can be formed integrally with the door frame 41. In addition, the buffer part 61 comprised from elastic members, such as a rubber material, is attached to the front end side of the cover 60, and a shock is eased when the door 2a and the guide frame 25b (door frame 41b) by the side of the door 2b contact. This prevents the generation of abnormal noise.

  The guide frame 25 is a frame-like member that guides the up-and-down trajectory of the door 2 and includes a right frame, a left frame, and a lower frame, and an upper portion is formed so as to allow the door 2 to be inserted therethrough. Of course, according to the curved shape of the door 2, for example, the guide frame 25 is also formed in a curved shape with the same radius of curvature as the door 2. A support bracket 11 is attached to the left and right frames below the guide frame 25 as shown in FIG. A pair of roller shafts 12 whose axial direction is the width direction of the door 2 are formed on the upper and lower portions of each support bracket 11, and a guide roller 13 is rotatably attached to each roller shaft 12. That is, four guide rollers 13 are attached to each support bracket 11.

  Referring also to FIG. 8, a vertically long housing 70 is fixedly installed in a lower space of the platform PH (FIG. 6), and a pair of guide rails 6 are formed on the housing 70 so as to extend in the vertical direction. The guide rail 6 is curved in an arc shape corresponding to the curved shape of the door 2 and the guide frame 25 so that the door 2 and the guide frame 25 (FIG. 1) draw a predetermined rotation locus, as shown in FIG. 7. As described above, the guide frame 25 moves up and down along the guide rail 6 by sandwiching the guide rail 6 between the pair of upper and lower guide rollers 13.

  Next, the drive mechanism 5 of the door 2 will be described with reference to FIGS. The drive mechanism 5 is housed in the housing 70. The drive mechanism 5 includes a drive slider provided on a fixing member (a housing 70 in the present embodiment) installed below the platform, and one end in the longitudinal direction is rotatably coupled to the lower portion of the door 2, and the other end side thereof A link 36 is provided which is cam-coupled to the drive slider 27 and a positioning guide cam groove 51 extending in the vertical direction by fitting the pin and the groove. This link 36 converts the vertical movement of the drive slider 27 into the rotational movement of the door 2.

  In FIG. 8, a support plate 29 is fixed inside the housing 70 so as to extend in the vertical direction, and pulleys 30, 31 are attached to the upper and lower sides of the support plate 29, and from the motor 33 attached to the support plate 29. A driving force is transmitted to the upper pulley 30 via the belt 35. A timing belt 34 with a drive slider 27 fixed is wound between the pulleys 30 and 31 in a track shape, and the drive slider 27 moves up and down linearly between the pulleys 30 and 31 by the driving force of the motor 33. A slider guide rail 14 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, and a part of the drive slider 27 slides on the slider guide rail 14. Fit freely. In the present invention, the vertical movement of the drive slider 27 is not limited to a strict linear movement, but includes a case where a slightly curved movement locus is drawn.

  The drive slider 27 is formed with a slider cam pin 28 that engages with a slider cam groove 50 formed as a groove in the link 36. The slider cam groove 50 is formed in an arc shape. The link 36 is a long plate-like member, and a boss hole 37 that engages with the boss 42 of the door frame 41 is formed on one end side, and the slider cam groove 50 and the link cam pin 43 are formed on the other end side. Is done. The slider cam groove 50 is formed near the center of the link 36. A plate member 15 is fixed to the housing 70, and the link cam pin 43 engages with a guide cam groove 51 formed linearly on the plate member 15. That is, one end of the link 36 is rotatably coupled to the lower portion of the door 2 (door frame 41), and the other end is cam-coupled to the drive slider 27 and the guide cam groove 51. The cam coupling by the guide cam groove 51 and the link cam pin 43 has a function of positioning the link 36 in the rotational direction.

  When the door 2 is in the closed state, as shown in FIG. 6A, the drive slider 27 is at the highest position near the pulley 30 and pushes up the link 36 engaged with the slider cam pin 28 by the slider cam groove 50. . The link 36 is a door in a standing state while being regulated by both the track of the guide cam groove 51 with which the link cam pin 43 is engaged and the track of the door 2 (boss 42) defined by the guide frame 25. 2 is pushed up. Here, as shown in FIG. 6A, the guide cam groove 51 is formed so as to be inclined with respect to the movement locus of the drive slider 27, thereby increasing the stroke angle of the link 36 with respect to the door 2 that moves up and down. it can. In other words, the moving stroke of the door 2 can be increased by increasing the amount of the link 36 standing up. As a result, the height of the door 2 itself can be reduced, the apparatus can be made compact, and the storage space below the platform can be reduced.

  In particular, as in this embodiment, if the guide cam groove 51 is formed so as to be close to the door 2 as it goes upward, the link 36 can be raised when the door 2 is lifted. Thus, the bending stress generated in the link 36 can be reduced.

  As shown in FIGS. 9A to 9C, in the ascending process of the door 2, the engaging portion 16 projecting below the door 2 (door frame 41) and the upper edge of the guide frame 25 are formed. The engaged portion 17 is engaged, and the guide frame 25 is pulled up by the engaging portion 16 via the engaged portion 17. That is, the movement stroke of the door 2 is larger than the movement stroke of the guide frame 25.

  When the door 2 is in the open state, the drive slider 27 is at the lowest position near the pulley 31 as shown in FIG. At this time, the slider cam pin 28 of the drive slider 27 is engaged at the position closest to the line of the slider cam groove 50 of the link 36, and the link cam pin 43 is also engaged at the position closest to the home of the guide cam groove 51. The link 36 is positioned at the lowest point in a substantially horizontal state. The door 2 engaged with the link 36 descends following the trajectory of the guide frame 25 and is stored under the platform PH. At this time, the door 2 and the guide frame 25 are accommodated so as to overlap each other with respect to the ascending / descending direction. In the lowering process of the door 2, the guide frame 25 is first lowered together with the guide frame 25, and only the door 2 is lowered after the guide frame 25 first reaches the lowest position.

  As described above, the elevating type door 2 provided side by side along the side edge of the platform PH and the guide frame 25 for guiding the elevating locus of the door 2 are provided. When the door 2 is lowered, at least the platform PH is provided. If the door 2 and the guide frame 25 are stored so as to overlap each other with respect to the ascending / descending direction, and the guide frame 25 is lifted together with the door 2 when the door 2 is lifted, only the door 2 is The height dimension of the door 2 can be suppressed as compared with the structure to be moved up and down. Therefore, in addition to the above-described effect obtained by inclining the guide cam groove 51, the apparatus can be made more compact, and the storage space below the platform PH can be reduced.

  Further, if the door 2 and the guide frame 25 are engaged in the ascending process of the door 2 and the guide frame 25 is pulled up by the door 2, the guide frame 25 can be lifted and lowered together with the door 2 with a simple structure. The number of parts is reduced, and the platform door device 1 is economical.

  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.

It is an external appearance perspective view at the time of seeing the platform door device concerning the present invention from the track side, and is the state where some doors 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, and is a state where some doors 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. It is a sectional side view of a door, (a) shows an open state, (b) shows a closed state. It is CC sectional drawing in FIG.6 (b). It is a disassembled perspective view which shows a drive mechanism and a guide rail. It is action | operation explanatory drawing of engagement operation | movement with a door and a guide frame.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Platform door apparatus 2 Door 3 Step 25 Guide frame 27 Drive slider 28 Slider cam pin 36 Link 41 Door frame 42 Boss 43 Link cam pin 50 Slider cam groove 51 Guide cam groove

Claims (2)

A platform door device that is provided on the platform and forms an entrance / exit corresponding to the entrance / exit of the railway vehicle,
An elevating door that is arranged along the side edge of the platform and draws an arcuate movement trajectory,
A drive slider attached to a fixed member installed under the platform and moving up and down;
A link for converting the vertical movement of the drive slider into the rotational movement of the door;
With
One end of the link is rotatably coupled to the lower portion of the door, and the other end is formed so as to be inclined with respect to the drive slider and the movement locus of the drive slider by fitting a pin and a groove, respectively. A platform door device characterized in that it is configured to be cam-coupled to a guide cam groove for positioning.   The platform door device according to claim 1, wherein the guide cam groove is formed so as to approach the door side as it goes upward.

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