JP2001115733A - Movable platform fence device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable platform fence device in which the positions of lubrication are decreased and time and cost for maintenance can be reduced. SOLUTION: When a driving section 80 arranged on the entrance door 70 side is lubricated, bearings 120, 130 used for the driving section 80 arranged on the door storage case 61 side are formed in a non-lubricated type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable platform fence device which stands along a side edge on a platform and forms a rail between a train which stops at a fixed position on a track side extending alongside the platform. .

[0002]

2. Description of the Related Art In recent years, with the one-man operation of trains,
Assurance of platform security has become one of the important issues, and a movable platform fence device has attracted attention as one means of ensuring platform security.

[0003] Such a movable platform fence device requires that the opening / closing distance of one side of the entrance / exit door be at least 1 m in a double-opening structure in consideration of the stop error of the train, and to shorten the train operation time interval. There is a need for a door opening / closing drive device capable of high-speed opening / closing operation. When a long ball screw is used in such an opening / closing door opening / closing drive device, there is a problem of a critical speed due to high-speed rotation rather than mechanical strength required for opening / closing, and in particular, a bearing structure supporting the ball screw is important. The factor determines the size of the ball screw.

[0004] It is recommended that the bearing structure has little play in the axial direction of the ball screw. In the conventional bearing structure, an angular ball bearing or a tapered roller bearing is used, and a preload is applied in the axial direction of the ball screw. It is used. Since these bearings do not have a seal type that can hold lubricating oil,
It is necessary to make the entire bearing housing containing these bearings a seal structure.

[0005]

However, in such a conventional movable home fence device, when the entire bearing housing is formed into a seal structure, the structure for holding the lubricating oil is complicated, and the cost of the device is reduced. When the bearing housing has an open structure, the movable platform fence has a relatively small number of operations, but it needs to be refueled periodically at least every six months to one year. However, there has been a problem that maintenance time and cost are increased by a large amount.

The present invention has been made in view of such a conventional problem, and refuels a driving unit disposed on one of a storage port side of a door pocket fence and a rear side of the door pocket fence, and When a bearing is used for the drive unit arranged on the other side of the storage port side of the door pocket fence or the back side of the door pocket fence, the bearing shall be of an oilless type, and the guide unit shall be concentrated by lubrication piping. It is an object of the present invention to provide a movable home fence device capable of refueling, reducing the number of refueling points, and reducing maintenance time and cost.

[0007]

The gist of the present invention to achieve the above object lies in the following inventions. [1] A movable platform fence device which stands along a side edge on a platform (10) and forms a rail between a train stopped at a fixed position on a track side extending beside the platform (10), A door (70) arranged opposite to the door of the train and interlockable with the opening / closing operation of the door of the train; a door pocket fence (61) for storing the door (70);
A drive unit (80) for projecting the door (70) to the side of the door pocket fence (61), and a guide unit (92, 96) for guiding the door (70) in the direction of emergence. And a bearing (120) of the drive section (80) is formed of an oilless type.

[2] A movable platform fence device which stands along the side edge on the platform (10) and forms a fence with a train stopped at a fixed position on a track side extending beside the platform (10). A lift door (70) arranged opposite to the train door and interlockable with the opening and closing operation of the train door, a door pocket fence (61) for storing the lift door (70), The door (70) is connected to the door fence (6
1) a driving unit (80) for moving in and out to the side, and a guide unit (92, 96) for guiding the entrance / exit door (70) in the moving direction, and the guide unit (92, 96). Wherein the lubrication means is configured to be capable of centralized lubrication by means of lubrication pipes (141, 142).

[3] The oilless bearing (120) is
The movable home fence device according to [1], wherein the movable home fence device is an angular ball bearing with a seal.

[4] The oilless bearing (120) is
The pair of angular ball bearings with seals formed by sealing lubricating grease with a seal member (125) are assembled together with their front faces (121) aligned with each other [1] or [2]. Movable home fence equipment.

Next, the operation of the invention described in each of the above items will be described. Another configuration of the present invention provides a driving unit (80).
When the bearing (120) is used for the bearing (12),
0) is constituted by an oil-free type. Since the bearing (120) itself is an oil-free type, the entire bearing box having a built-in bearing structure does not have to be a seal type, and the bearing structure and its surrounding structure are not complicated, thereby reducing manufacturing costs and component costs. can do. In addition, bearings (12
By making the non-lubricating type 0), the number of locations to be refueled is greatly reduced, the refueling work is reduced, and the maintenance time and cost can be reduced.

Another configuration of the present invention is, for example, when refueling a drive section (80) or a guide section (92, 96) arranged on the door (70) side, the door pocket fence (61) side. When the bearing (120) is used for the drive unit (80) disposed in the above, the bearing (130) is of an oilless type.

Since it is sufficient to refuel only one of the entrance door (70) and the door pocket fence (61), the lubrication points can be intensively supplied to the lubrication points by the lubrication pipes (141, 142) without being dispersed. Refueling work is reduced. Further, since the bearing (120) used for the drive unit (80) arranged on the other side of the door (70) or the door pocket fence (61) is an oil-free type, the entire bearing box incorporating the bearing structure is used. It is not necessary to use the seal type, and the bearing structure and the structure around it do not become complicated.

Further, in the case where the non-lubricating type bearing (120) is an angular ball bearing with a seal, the bearing (120) can be used in a non-lubricated state, and the axial direction of the supported member can be improved. (Thrust direction) and rattling in the direction perpendicular to the axis (radial direction) can be prevented.

Further, in a case where a pair of angular contact ball bearings with seals are assembled with their front faces (121) together to form an oilless bearing (120), such an oilless bearing (120) is used. With this set, it is possible to prevent backlash in both the axial direction and the axis perpendicular direction of the supported member.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 8 show an embodiment of the present invention. The movable platform fence device 60 according to the present embodiment forms a fence between a train that is erected along a side edge on the platform 10 and stops at a fixed position on a track extending beside the platform 10, This is to ensure passenger safety when getting on and off the train.

As shown in FIGS. 2 and 3, the movable home fence device 60 includes a door fence 61 and a door 70 that can be opened and closed so as to protrude and retract from the side of the door fence 61. Here, the door pocket fence 61 and the entry / exit door 70 are configured as one unit.

A pair of movable platform fence devices 60 are arranged on the platform 10 so as to correspond to passenger doors (not shown) at predetermined intervals in the middle of the train. Here, the train stops at a fixed position, but an allowable error within a predetermined range is set for the reference fixed position, and the opening amount of the door 70 of the pair of movable platform fence devices 60, The frontage of the door pocket fence 61 is set wider than the width of the opening frame of the passenger door of the train.

Hereinafter, the door pocket fence 61 of the movable home fence device 60 will be described.
Is formed in a flat rectangular box shape as a whole, and the lower end of the door pocket fence 61 is fixed on the foundation of the platform 10. The basic structure of the platform 10 will be described later.

The door pocket fence 61 is provided with a storage section 62 for storing the door 70, and a drive section 80 for opening and closing the door 70 laterally from the storage opening 62a of the storage section 62 to open and close. . The storage portion 62 is set to have an inner size in which the entrance door 70 can just fit.

At the upper and lower portions inside the door pocket fence 61,
An upper frame 63 and a lower frame 64 are provided horizontally over substantially the entire width of the door pocket fence 61. On the upper surface of the upper frame 63, an upper guide rail 65 for guiding the door 70 that opens and closes is mounted, and on the lower surface of the lower frame 64, a lower guide rail 66 for guiding the door 70 similarly. .

As shown in FIGS. 4 to 7, the upper guide rail 65 is formed in an inverted T-shaped cross section and has a horizontal portion 65a and a vertical portion 65b. Also, the lower guide rail 6
Numeral 6 is formed in a groove-like cross-sectional shape with a groove opening downward, and has a groove bottom 66a and a groove wall 66b.

As shown in FIG. 1 and FIG.
Is a mechanism for driving the door 70 to open and close, and the driving unit 80 is a screw member 82 that is a ball screw that is rotationally driven by an electric motor 81.
And a nut member 83 which is rotatably screwed to the screw member 82 and fixed to the door 70.

The screw member 82 extends along the upper surface of the lower frame 63. Both ends of the screw member 82 pass through housings 100 and 110 fixed on the lower frame 63, respectively, and are rotatably supported by bearings 120 and 130 fitted inside the housings 100 and 110. The bearing 120 is disposed on the back side of the door pocket fence 61 opposite to the storage opening 62a side.

As shown in FIG. 8, the bearing 120 is an oil-free type bearing in which a pair of sealed angular contact ball bearings have their front faces 121 joined together.
A seal member 125 is provided on the 22 side, and has a structure capable of holding lubricating oil.

Also, as shown in FIG.
It is arranged on the storage port 62a side of the door pocket fence 61, is a radial ball bearing with a seal, is also an oilless type bearing, and a seal member 135 is provided on both surfaces of the bearing 130, and lubricating oil is provided. It has a structure that can be held.

The length of the screw member 82 is
It is set slightly longer than the opening and closing stroke distance. The electric motor 81 is fixed on the lower frame 63. The output shaft of the electric motor 81 is connected to the base end of the screw member 82 via a shaft coupling so as to be able to transmit a rotational force.

The nut member 83 is fixed to the base end of the side wall of the door 70 so that it cannot move forward and backward and cannot rotate. A control panel 85 on which various electric components for controlling driving of the electric motor 81 and the like are mounted is mounted inside the door pocket fence 61. The control panel 85 and the electric motor 81 and the like are electrically connected by a wiring W.

As shown in FIGS. 1 to 7, the door 70 is
It is formed in a flat rectangular box shape having a size that can be just fit in the storage portion 62 of the door pocket fence 61. A pair of upper door guide rollers 91 that are in contact with the vertical portion 65b of the upper guide rail 65 from both sides are attached to the upper portion near the base end side of the entrance door 70 near the door pocket fence 61 via a support block 95. . The connection block 97 is provided on the support block 95.
Are fixedly mounted, and a fuel supply pipe 141 is connected to the connection block 97. The connection block 97 has a lubrication path (not shown) for centralized lubrication to the rotating portion of the upper door guide roller 91.
Are formed.

A lower door guide shoe 92 that comes into contact with the groove bottom 66a of the lower guide rail 66 from below is attached to a lower portion of the door 70 near the base end near the door pocket fence 61 via a support block 96. It is.

A connection block 98 is fixed to the nut member 83 fixed to the door 70, and an oil supply pipe 142 is connected to the connection block 98. Nut member 83
Oil supply passage (not shown) leading to the screw member 82 side
Are formed. The support block 96 is provided on the door 70.
A branch block 99 is provided at a position below the oil supply pipe, and an oil supply pipe extends from the branch block 99.

These guide rollers 91 are used for guiding rails 6.
5, the lower door guide shoe 92 slides along the lower guide rail 66, so that the door 70 smoothly slides in a horizontal direction and opens and closes. The entry / exit door 70 is closed so as to cover the opening frame of the passenger door in the train when driven in the protruding direction by the drive unit 80, and opened when driven in the immersion direction to open in the storage section 62 of the door pocket fence 61. It is set to be stored.

Next, the basic structure of the movable platform fence device 60 that forms a fence along the side edge on the platform 10 will be described. As shown in FIGS. 2 and 3, the platform 1
Numeral 0 is formed in a substantially T-shaped cross section supported on the standing leg portion 14, and the side edge of the platform 10 protrudes toward the line extending to the side of the platform 10.

A base member 20 is fixedly connected to the upper surface 11 of the side edge of the platform 10, and the base member 2
0 is welded to one end of the hollow pipe 30 and the base member 2
0 and the hollow pipe 30 are integrally formed. At the other end of the hollow pipe 30, a wire passage 31 for passing the wiring W to the movable home fence device 60 is opened. The wire opening 31 is the lower end of the hollow pipe 30 and the hollow pipe 3
The hollow portion of 0 is a line passage through which the wiring W passes. A movable home fence device 60 is erected on the base member 20.

The lower end of the hollow pipe 30 has a male thread 32
Is formed, and the double nut member 4 is
0 and 41 are screwed. The nut members 40 and 41 fasten the hollow pipe 30 via the inclined washers 45.

At the lower end of the hollow pipe 30, a suspending member 50 for suspending a wiring rack 55 provided along the lower surface 12 of the side edge of the platform 10 is attached. The suspending member 50 is formed in a substantially U-shaped cross section, and the upper side 51 of the suspending member 50 has two nut members 4.
0, 41. Lower side 52 of the suspension member 50
Is bolted to a rack 55 having a substantially U-shaped cross section. The rack 55 is extended in a state where the wiring W is placed thereon, and the necessary wiring W is connected to the wire passage 3 of the hollow pipe 30.
1 through the communication port 21 to the upper surface 1 of the platform 10
1 to the movable home fence device 60.

Next, the operation will be described. In the present embodiment,
Oil supply pipe (lubrication pipe) 141,1 which is an oil supply means lubrication pipe
42 is centrally piped to the nut member 83 and the lower door guide shoe 92 of the drive unit 80 disposed on the entrance door 70 side, and to the upper door guide roller 91, respectively. On the other hand, the bearings 120 and 130 on the door pocket fence 61 side for rotatably supporting both ends of the screw member 82 are both oil-free types.

As a result, only the nut member 83, the lower door guide shoe 92, and the upper door guide roller 91 which are disposed on the door 70 side need to be supplied with oil. Since it is arranged intensively on the base end side of the door 70 near the door pocket fence 61, the points to be refueled do not disperse, and the oil supply pipes 141 and 142 are intensively piped to the points to be refueled. , The fuel can be intensively refueled, and the refueling work is reduced.

A driving unit 80 disposed on the door pocket fence 61 side
Since the bearing 120 itself is a non-lubricating type that holds lubricating oil, lubrication becomes unnecessary, and the number of locations to be lubricated is reduced.
From this point, refueling work is reduced. In addition, the entire bearing housing having the built-in bearing structure does not have to be a seal type, so that the bearing structure and its surrounding structure are not complicated.

Since the lubrication-free type bearing 120 is constituted by a pair of sealed angular ball bearings with their front faces 121 aligned with each other, the axial direction (thrust direction) of the screw member 82 to be supported and the axis perpendicular to the axis are provided. The play in the direction (radial direction) can be prevented.

Next, the operation of the movable home fence device 60 will be described. The entrance / exit door 70 stored in the storage portion 62 of the door pocket fence 61 of the movable home fence device 60 is closed in the protruding direction while leaving only the base end side where the guide roller 91 and the nut member 83 are located in the door fence 61. You can move. The range that can be opened and closed by the door 70 is the door pocket fence 61 in which these are stored.
Is considerably larger than the width of the passenger door, so that the passenger door can be opened and closed.

When the door member 70 is closed, when the screw member 82 is rotated in one direction by the electric motor 81 of the drive unit 80, the nut member 83 moves along the longitudinal direction so as to be relatively separated from the electric motor 81. I do. Therefore, the door 70 moves in the protruding direction extending laterally from the door pocket fence 61 and closes so as to cover the opening frame of the passenger door of the train that stops at the fixed position. Except when passengers get on and off the train, the doors 70 are kept closed.

When a passenger gets on or off the train, the door 70 is driven by the drive unit 80 in the immersion direction. That is, when the screw member 82 is rotated in the opposite direction by the electric motor 81 of the drive unit 80, the nut member 83 moves along the longitudinal direction so as to relatively approach the electric motor 81. Then, the door 70 moves away from the front of the passenger door of the train to the side and is stored in the door pocket fence 61 as it is.

In the above-described embodiment, the upper door guide roller 91, the nut member 83 of the drive unit 80, and the lower door guide shoe 92 are separately concentrated.
These may be combined in one place by piping, and the whole may be centrally refueled.

Further, the lubricating means is constituted by lubricating pipes 141, 142,
Although the connection blocks 97 and 98 and the branch block 99 are used, it goes without saying that the present invention is not limited to these configurations.

Further, the guide portion is composed of the upper guide rail 65, the upper door guide roller 91, the lower guide rail 66, and the lower door guide shoe 92. However, the present invention is not limited to this. As a result, the configuration of the guide section also differs.

Further, in the above-described embodiment, the drive unit 80 is constituted by the screw member 82 and the nut member 83. However, the drive unit 80 is constituted by a belt drive, a hydraulic or pneumatic cylinder, a link, a linear or the like. Is also good.

[0048]

As described above, in one configuration of the present invention, the bearing of the drive section is formed of an oilless type, so that the entire bearing box having a built-in bearing structure does not have to be a seal type. The manufacturing cost and the parts cost can be reduced without complicating the structure and the surrounding structure.
Also, by using a non-lubricated bearing, the number of points to be lubricated is greatly reduced, and lubrication work is reduced.
Maintenance time and cost can be reduced.

Further, in another configuration of the present invention, the oil-free type bearing is an angular ball bearing with a seal, so that the bearing member has backlash in the axial direction (thrust direction) and the axis perpendicular direction (radial direction). Can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing a driving unit of a movable home fence device according to an embodiment of the present invention.

FIG. 2 is a front view showing an installed state of a movable home fence device according to one embodiment of the present invention.

FIG. 3 is a side view showing an installed state of a movable home fence device according to one embodiment of the present invention.

FIG. 4 is a partially enlarged view of FIG. 3;

FIG. 5 is a partially enlarged view of FIG. 3;

FIG. 6 is a partially enlarged view of FIG. 2;

FIG. 7 is a partially enlarged view of FIG. 2;

FIG. 8 is a sectional view of a main part of the bearing according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Platform 11 ... Upper surface 20 ... Base member 30 ... Hollow pipe 31 ... Wire passage 40, 41 ... Nut member 50 ... Suspension member 51 ... Upper side part 52 ... Lower side part 55 ... Rack 56 ... Support bracket 60 ... Movable home fence device 61 ... door pocket fence 62 ... storage section 62a ... storage opening 63 ... upper frame 64 ... lower frame 65 ... upper guide rail 65a ... horizontal section 65b ... vertical section 66 ... lower guide rail 66a ... groove bottom section 66b ... groove wall section 70 ... getting on and off Door 80 ... Drive unit 81 ... Electric motor 82 ... Screw member 83 ... Nut member 85 ... Control panel 91 ... Upper door guide roller 92 ... Lower door guide shoe 95,96 ... Support block 97,98 ... Connection block 99 ... Branch block 100, 110: Housing 120, 130: Bearing 121: Front 122: Back 125, 35 ... sealing member 141, 142 ... oil supply pipe (lubrication piping)

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2E052 AA10 CA01 CA02 CA06 CA07 DA04 DA06 DA08 DB04 DB06 DB08 EA15 EB01 EC03 KA10 KA15 KA23

Claims (4)

[Claims] 1. A movable platform fence device that stands along a side edge on a platform and forms a fence with a train stopped at a fixed position on a track side that extends beside the platform. An entrance / exit door arranged opposite to and capable of interlocking with the opening / closing operation of the train door, a door fence for storing the entrance / exit door, and a drive unit for causing the entrance / exit door to protrude and retract to the side of the door pocket fence. And a guide part for guiding the entrance door in the direction of ingress and egress, wherein the bearing of the drive part is constituted by an oilless type. 2. A movable platform fence device, which stands along a side edge on a platform and forms a rail with a train stopped at a fixed position on a track side extending beside the platform. An entrance / exit door arranged opposite to and capable of interlocking with the opening / closing operation of the train door, a door fence for storing the entrance / exit door, and a drive unit for causing the entrance / exit door to protrude and retract to the side of the door pocket fence. And a guide portion for guiding the entrance / exit door in and out of the moving direction, wherein the lubrication means of the guide portion is configured to enable centralized lubrication by a lubricating pipe. apparatus. 3. The movable home fence device according to claim 1, wherein said oilless bearing is an angular contact ball bearing with a seal. 4. The oilless type bearing according to claim 1, wherein a pair of sealed angular ball bearings, each of which is formed by sealing lubricating grease with a seal member, are assembled with their front faces facing each other. 2. The movable platform fence device according to 1.