JP2016060405A - Platform movable fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a platform movable fence in which, frequency of maintenance and failure occurrence on a drive part for opening and closing a door, is significantly reduced.SOLUTION: A platform movable fence 100 comprises: a door guard 20 disposed along a vehicle passage part of a station platform, and dividing the platform into a passage possible part A1 and a vehicle passage side part A2; a door 30 disposed so as to slide freely along the vehicle passage part, toward an outer space of the door guard 20 from an inner space of the door guard 20; and a door drive part 40 for slide moving the door 30. A rack part 32 is provided on one surface of a bottom surface and an upper surface of the door 30, and the door drive part 40 has a drive roller 44 for engaging with the rack part 32 for moving the door 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a movable fence for a home.

  In recent railway stations, the platform is divided into a part that can pass through and a part that can pass through the vehicle, and the door is opened and closed at a predetermined timing. Installation of movable protective fences to prevent the occurrence is ongoing. For such a movable guard fence, for example, a configuration as disclosed in Patent Document 1 has been proposed.

JP 2012-96768 A

  In patent document 1, it has a movable door and a door pocket, and the drive pulley and the driven pulley arrange | positioned in the moving direction of the movable door in the door pocket, and it is spanned between these pulleys, and it circulates between two pulleys There is disclosed a configuration of a movable guard fence that includes a belt for driving and a motor for driving a driving pulley. Thus, when the structure which circulates the belt spanned between several pulleys on the movable guard fence is adopted, the belt will be stretched due to creep phenomenon or material deterioration. As a result, maintenance of belt tension adjustment becomes necessary, and in the worst case, there is a possibility that the belt stretched between the pulleys may fall off the pulley and become inoperable.

  Therefore, the present invention adopts a simple configuration that does not use a belt in the door drive unit that opens and closes the door, thereby greatly reducing the frequency of maintenance and failure occurrence in the door drive unit that opens and closes the door. The purpose is to propose a movable fence.

As a result of intensive studies by the inventor of the present application in order to solve the above-mentioned problems, the following configuration has been conceived.
That is, the present invention provides a door pocket that is arranged along a vehicle passage portion of a platform of a station and partitions the platform passage-permissible portion and the vehicle passage-side portion from the interior space of the door pocket toward the outer space of the door pocket. A door disposed to be slidable along the vehicle passage portion, and a door driving unit for sliding the door, and a rack is provided on one of the bottom surface and the top surface of the door. The movable door fence is characterized in that a drive roller that meshes with the rack portion and moves the door is provided in the door drive portion.

  Thereby, the structure of the door drive part for driving a door can be made into the structure which does not use a belt, and generation | occurrence | production of the malfunction regarding use of a belt can be eliminated. In addition, a simple configuration with a rack portion provided on the door and a driving roller that meshes with the rack portion and rotates to drive the door to slide is adopted. It is possible to greatly reduce the failure occurrence probability of the drive unit.

  Moreover, it is preferable that the said door drive part further has a driven roller which rolls the surface of the said rack part.

  Thereby, the door can be slid in a more stable state.

  Moreover, it is preferable that the said door drive part further has the guide roller which rolls the other surface of the bottom face or upper surface of the said door.

  As a result, the door can be slid while being pressed in the height direction of the door by the drive roller and the guide roller, and the door can be slid in a stable state. In addition, the door can be always pressed in the height direction by the drive roller and the guide roller, and the door sent out from the door bag can be prevented from lowering the sending side portion by its own weight (so-called bowed state). it can.

  In addition, a curved surface portion is formed on the other surface of the door, and the guide roller passes through the first guide roller disposed on the vehicle passage side portion side with respect to the door and the door. It is preferable that the second guide roller is disposed on the possible portion side, and the curved surface portion is sandwiched between the first guide roller and the second guide roller.

  Accordingly, the door can be pressed in the height direction by the driving roller and the guide roller of the door driving unit, and the door can be sandwiched in the thickness direction by the first guide roller and the second guide roller. Therefore, it is possible to prevent the door from being bowed and to prevent the occurrence of blurring in the thickness direction of the door.

  Further, the wall surface of the door pocket on the side of the passable portion is formed as an inclined wall surface where the height from the floor surface of the platform increases and the planar projection position of the wall surface gradually approaches the vehicle pass side portion side. It is preferable.

  According to this, by installing the movable fence for the platform on the platform, the area of the passable part of the platform is slightly narrowed, but as the wall surface on the passable part side separates in the height direction from the floor surface of the platform. Since the vehicle is gradually approaching toward the vehicle-passing portion, the movable space of the upper half of the station user when the passable portion is congested can be expanded. Therefore, even on a crowded platform, there is almost no problem that the walking of the passable part is hindered.

  By adopting the configuration of the movable fence for the home according to the present invention, the configuration of the door driving unit for driving the door can be made a simple configuration without using a belt, and therefore the belt in the door driving unit is deteriorated. Occurrence of problems due to Therefore, the operation reliability is extremely high, and the maintenance frequency in operation of the movable fence for the home can be greatly reduced.

It is explanatory front view which shows schematic structure of the movable fence for platforms in this embodiment. It is a side view of the movable fence for homes in this embodiment. It is a principal part enlarged view of a rack part and a drive roller part. It is a principal part enlarged view of a curved surface part and a guide roller part.

Hereinafter, embodiments of the movable fence for a home according to the present invention will be described in detail.
As shown in FIGS. 1 and 2, the movable fence 100 for a platform according to the present embodiment includes a base 10, a door pocket 20, and a door pocket 20 disposed along a railroad track that is a vehicle passage portion on a platform of a railway station. The door 30 is slidably movable along the vehicle passage portion between the interior space and the exterior space, and is erected on the floor D of the platform in the interior space of the door pocket 20 and slides the door 30 at a predetermined timing. And a door drive unit 40. The platform on which the movable fence for home 100 is disposed is partitioned into a passable part A1 and a vehicle passable part A2.

  The base 10 is provided with a setting recess 11 at a position along the railroad track on the floor D of the platform, and after being disposed in the setting recess 11, the base 10 is fixed by an anchor bolt 12. A door pocket 20 is attached to the base 10 by known fastening means represented by bolts and nuts (not shown).

  As shown in FIG. 2, the door pocket 20 has a wall 21 on the railroad side standing upright, and a door accommodating recess 21 </ b> A for accommodating the door 30 is formed. The depth dimension of the door accommodating recess 21 </ b> A is formed to be equal to or greater than the thickness dimension of the door 30, and by including the thickness dimension of the door 30 in the thickness dimension of the door pocket 20, the total thickness of the movable movable fence 100 for the home is set. Is reduced. In addition, although the door pocket 20 in this embodiment is the structure which the door 30 exposes in the vehicle traffic side part A2 side (railway side), in order to protect the door 30 to the wall surface 21 of the railroad side of the doorcase 20. A cover may be provided.

  Further, the wall surface 22 of the door pocket 20 on the side of the passable portion A1 gradually increases in the plane projection position of the wall surface 22 at the height position from the floor surface D of the platform. It is formed on an inclined surface approaching A2 (trackside). As a result, the loss of the plane area of the passable part A1 due to the installation of the platform movable fence 100 on the platform occurs, but the wall surface 22 on the passable part A1 side is changed to an inclined wall surface as in this embodiment. By doing so, the space for the upper body of the platform user (station user) is expanded, and the reduction in walking ability when the platform is congested can be minimized.

  A rack portion 32 is provided on the bottom surface of the door 30. In the present embodiment, as shown in FIG. 3, a timing belt is employed as the rack portion 32 and is attached over the entire range in the direction in which the door 30 is slid on the bottom surface of the door 30 (so-called width direction).

  Further, a curved surface portion 34 whose upper side is curved in a convex shape is provided on the upper surface of the door 30. In the present embodiment, as shown in FIG. 4, a sheet metal body in which a cross-sectional shape in a direction orthogonal to the sliding direction of the door 30 forms a semicircular bowl shape is employed as the curved surface portion 34. The curved surface portion 34 is attached to the upper surface of the door 30 by a known method such as welding over the entire range in which the door 30 is slid (so-called width direction).

  The door 30 can be slid by the door driving unit 40. The door 30 in this embodiment slides and moves in the direction of the arrow X in FIG. 1 so as to advance and retreat (project into and out) along the vehicle passage portion between the internal space of the door pocket 20 and the external space of the door pocket 20.

  A door driving unit 40 for sliding the door 30 is accommodated in the internal space below the door pocket 20. The door drive unit 40 in this embodiment includes an electric motor 42, a drive roller 44, a driven roller 46, a guide roller 48, and a control panel 49.

  The output shaft of the electric motor 42 extends to the track laying side, and a driving roller 44 is attached to the tip of the output shaft of the electric motor 42 (a planar position where the rack portion 32 of the door 30 is attached). Similarly, a driven roller 46 is disposed in addition to the drive roller 44 in the lower portion of the door pocket 20 (a portion near the floor D of the platform). The driven roller 46 is disposed at two positions with a required interval in the moving direction of the door 30 so as to be at the same height as the driving roller 44. Both the driving roller 44 and the driven roller 46 have a so-called pinion gear shape in which gears are formed along the rotation outer peripheral surface at a required interval, and mesh with a rack portion 32 attached to the bottom surface of the door 30. It is formed so that it can roll.

  By providing the rack portion 32 on the bottom surface of the door 30 like the door 30 in the present embodiment, the driving roller 44 and the driven roller 46 can be reliably engaged with the rack portion 32 by the dead weight of the door 30. By driving the electric motor 42 and rotating the driving roller 44 in such a state, the door 30 can be advanced and retracted with respect to the door pocket 20 along the vehicle passage portion of the platform. Here, since the door 30 rolls in a state where it is meshed with the rack portion 32 at two locations of the driving roller 44 and the driven roller 46, the door 30 is firmly supported, and the door 30 is extremely The slide can be moved in a stable state.

  As shown in FIGS. 1 and 2, a guide roller 48 is disposed on the upper portion of the door pocket 20. The guide roller 48 is rotatably fixed to the door pocket 20. As shown in FIG. 4, the guide roller 48 in the present embodiment includes a first guide roller 48 a disposed on the side of the portion A <b> 1 that can pass with respect to the door 30, and the vehicle passage side portion A <b> 2 side ( And a second guide roller 48b disposed on the track laying side). Accordingly, the door 30 can be held in the thickness direction of the door 30 by the first guide roller 48a and the second guide roller 48b, and the occurrence of blurring in the thickness direction of the door 30 can be prevented. Can do.

  In the present embodiment, as shown in FIG. 1, guide rollers 48 are disposed at positions directly above the drive roller 44 and the driven roller 46 (same plane position). That is, the door 30 is also sandwiched in the height direction of the door 30 by the driving roller 44 and the guide roller 48, and the driven roller 46 and the guide roller 48. Thereby, when the door 30 is pulled out from the door pocket 20, it is possible to prevent the door 30 from falling in the direction of arrow Y in FIG. 1 due to its own weight (so-called bowing of the door 30).

  In particular, as shown in FIGS. 2 and 4, the guide roller 48 in the present embodiment is configured such that the diameter dimension of one surface 48 </ b> A is different from the diameter dimension of the other surface 48 </ b> B in the member thickness direction of the guide roller 48. It forms a flat truncated cone shape in which the surface 48A and the other surface 48B are connected by an inclined surface 48C.

  As shown in FIG. 4, the guide roller 48 is a first guide roller on each of the passable portion A <b> 1 side and the vehicle pass side portion A <b> 2 side (track laying side) with respect to the curved surface portion 34 that is the upper surface of the door 30. 48a and the second guide roller 48b are arranged in a state where the surfaces on the small diameter side (here, the surface on the 48A side) face each other. With such an arrangement layout of the guide rollers 48, a force in the direction of the arrow Z is applied to the curved surface portion 34 by the inclined surfaces 48C of the first guide roller 48a and the second guide roller 48b, so that the door 30 is moved in the height direction. It can be in a state of being pressed from two directions in the thickness direction (in this specification, this state is a pinched state).

  According to such a configuration of the guide roller 48, when the door 30 is pulled out from the door bag 20, in addition to the occurrence of falling due to its own weight at the leading end portion of the door 30 and the occurrence of blurring in the thickness direction of the door 30, the door It is possible to prevent rattling or the like due to wind pressure when the railway vehicle passes in a state where 30 is pulled out from the door pocket 20. Further, since the inclined surface 48C of the guide roller 48 and the curved surface portion 34 are in point contact, the friction between the guide roller 48 and the curved surface portion 34 is reduced, and the rolling of the guide roller 48 on the curved surface portion 34 is made smooth. be able to. That is, the generation of noise during the sliding movement of the door 30 can be minimized.

  The guide roller 48 to the door pocket 20 is adopted by adopting a configuration in which the guide roller 48 is rolled on the curved surface portion 34 attached to the upper surface of the door 30 while the curved surface portion 34 is sandwiched and pressed as in the present embodiment. The mounting structure can be simplified. Furthermore, it is advantageous in that the rack portion 32 and the driving roller 44 disposed on the bottom surface of the door 30 can be surely engaged with each other due to the weight of the door 30.

  Based on detection signals from various sensors and a control program (none of which is shown) stored in the storage unit, the control panel 49 appropriately controls the electric motor 42 in accordance with the state of entry of the railway vehicle into the station. Operation control is performed, and the door 30 is slid at a predetermined timing. Further, when an emergency operation button (not shown) disposed on the outer surface of the door pocket 20 is operated, an emergency occurrence signal is transmitted to the control panel 49, and the control panel 49 transmits the electric motor 42 to the electric motor 42. The operation of forcibly accommodating the door 30 in the door pocket 20 is executed.

  Next, a schematic operation of the home movable fence 100 according to the present embodiment will be described. The movable fence 100 for a home according to the present embodiment is arranged in a state in which the position of the door 30 is aligned with the position of the doorway of a railway vehicle that stops at a station. The default state of the movable movable fence 100 is a state in which the door 30 is sent out from the door pocket 20 (a state in which entry from the passable portion A1 to the vehicle passable portion A2 (railway) is prevented).

  When a sensor (not shown) detects that the railroad doorway door has opened after the railcar arrives at the station and the sensor sends a detection signal to the control panel 49, the control panel 49 drives the electric motor 42 to The operation | movement which accommodates the door 30 of the movable fence 100 for doors in the door pocket 20 is made, the movable fence 100 for homes is made into the open state, and the state which can board / alight on a rail vehicle is made. Then, when a sensor (not shown) detects that the entrance door of the railway vehicle is closed and the sensor transmits a detection signal to the control panel 49, the control panel 49 drives the electric motor 42 to pull out the door 30 from the door pocket 20. To make the home movable fence 100 closed. Thus, the door 30 is opened and closed by the control panel 49 at a predetermined timing.

  The control panel 49 is an electric motor so that the sliding speed of the door 30 when the door 30 is pulled out from the interior space of the door pocket 20 is lower than the sliding speed of the door 30 when the door 30 is accommodated inside the door pocket 20. 42 is controlled. In the present embodiment, the sliding speed of the door when the door 30 is pulled out from the door pocket 20 with respect to the sliding speed of the door 30 when the door 30 is accommodated in the door pocket 20 is reduced to half or less.

  In the present embodiment, when at least the door 30 is pulled out from the door bag 20 and the door 30 comes into contact with a station user or the like, a sensor (not shown) transmits a contact detection signal to the control panel 49, and the control panel 49 transmits the electric motor 42. Pause the operation. Thereafter, after a preset time has elapsed, the control panel 49 resumes the driving of the electric motor 42, pulls the door 30 out of the door pocket 20, and closes the movable movable fence 100.

  The door 30 may be accommodated in the interior space of the door pocket 20 at the same time as the opening / closing timing of the entrance / exit door of the railway vehicle, or after the railway vehicle stops at the station, the entrance / exit door of the railway vehicle opens. You may make it accommodate the door 30 in the door pocket 20 before.

  The home movable fence 100 according to the present embodiment has been described above, but the technical scope of the present invention is not limited to the above embodiment. For example, in this embodiment, although the form which accommodated the door drive part 40 in the interior space of the door pocket 20 is employ | adopted, the door drive part housing | casing (not shown) which accommodated the door drive part 40 in the door pocket 20 is employ | adopted. It is also possible to dispose them adjacent to each other. At this time, it is preferable that the door drive unit housing has a shape following the outer diameter shape of the door pocket 20.

  In the present embodiment, the configuration in which the rack portion 32 and the driving roller 44 that rotates while meshing with the rack portion 32 are disposed on the bottom surface of the door 30 has been described, but the rack portion 32 is disposed on the upper surface of the door 30. In addition, a driving roller 44 that rotates while meshing with the rack portion 32 can be provided. In this case, the driven roller 46 is disposed on the upper surface side of the door 30, and the curved surface portion 34 is disposed on the bottom surface of the door 30 with the lower side curved in a convex shape.

  In this embodiment, the timing belt is used as the rack portion 32. However, the rack portion 32 can be formed directly on the bottom surface or the top surface of the door 30, or the rack portion 32 as a separate part is used as the door. You may make it attach to the bottom face or upper surface of 30.

  Further, it is of course possible to adopt the form of the movable movable fence 100 for home that is obtained by appropriately combining the modified configurations described in the present specification or the present embodiment and the modified configuration.

10 base, 11 set recess, 12 anchor bolt 20 door pocket, 21 track wall side wall, 21A door housing recess, 22 passable wall side 30 door, 32 rack part, 34 curved surface part,
40 door drive unit, 42 electric motor, 44 drive roller, 46 driven roller,
48 guide rollers, 48a first guide rollers, 48b second guide rollers,
48A One surface, 48B The other surface, 48C Inclined surface, 49 Control panel 100 Movable fence for home A1 Passable part, A2 Vehicle-passing part, D Platform floor

Claims (5)

A door pocket disposed along a vehicle-passing portion of a platform of a station, and partitioning the platform-passable portion and a vehicle-passing portion;
A door disposed so as to be slidable along the vehicle-passing portion from the inner space of the door pocket toward the outer space of the door pocket;
A door drive unit for sliding the door,
A rack portion is provided on one surface of the bottom or top surface of the door,
A movable fence for a home characterized in that the door driving portion is provided with a driving roller that meshes with the rack portion and moves the door.   The movable fence for a home according to claim 1, wherein the door driving unit further includes a driven roller that rolls on a surface of the rack unit.   3. The movable fence for a home according to claim 1, wherein the door driving unit further includes a guide roller that rolls on the other surface of the bottom surface or the top surface of the door. A curved surface portion is formed on the other surface of the door,
The guide roller has a first guide roller disposed on the vehicle passage side portion side with respect to the door, and a second guide roller disposed on the passage portion side with respect to the door. ,
4. The movable fence for a home according to claim 3, wherein the curved surface portion is clamped by the first guide roller and the second guide roller.   The wall surface on the passable portion side of the door pocket is formed on an inclined wall surface where the height from the floor surface of the platform increases and the planar projection position of the wall surface gradually approaches the vehicle pass side portion side. The movable fence for a home according to any one of claims 1 to 4, wherein

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