JP2019214363A - Opening/closing safety fence for platform - Google Patents

Abstract

To provide an opening/closing safety fence for a platform that can be easily manufactured and installed at low cost.SOLUTION: The opening/closing safety fence for a platform is installed on the platform and includes a plurality of columns and a safety fence. The safety fence has a cylindrical object including a large-diameter cylinder and a small-diameter cylinder whose diameters are different from each other. When the safety fence is opened, the small-diameter cylinder is housed in the large-diameter cylinder. When the safety fence is closed, the small-diameter cylinder housed in the large-diameter cylinder is moved in a lateral direction by an expansion mechanism such that the small-diameter cylinder serves as a fence. In the expansion mechanism, fitting means connected to a motor, which is mounted on the column, is fitted to the small-diameter cylinder to move the small-diameter cylinder in the lateral direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a platform open / close safety fence that can be manufactured and installed easily and inexpensively with a safety fence for preventing a fall from a platform of a station.

Many platforms at railway stations do not have a fence to prevent falls from the platform to the track side, and frequent falls and contact accidents by visually impaired persons, infants or drunk passengers occur.
For this reason, an automatic opening / closing door that separates the track from the inside of the platform is installed, and the automatic opening / closing door is opened only when a passenger gets on and off.

However, the conventional automatic opening / closing door is a door that covers the entire door, and has a high manufacturing cost and is not easy to install. For this reason, automatic opening / closing doors are installed only on platforms in the city center, and many stations in the region do not have safety fences such as automatic opening / closing doors, which is still dangerous. The present invention has been made in view of such a problem, and an object of the present invention is to provide an open / close safety fence for a platform which is inexpensive and can be easily manufactured and installed.

In order to solve the above-mentioned problems, an opening / closing safety fence for a platform according to the first invention is an opening / closing safety fence for a platform including a plurality of pillars and a safety fence arranged on the platform, wherein the safety fence has a diameter of It has a cylindrical body composed of different large-diameter cylinders and small-diameter cylinders, the small-diameter cylinder is accommodated in the large-diameter cylinder when the safety fence is opened, and the large-diameter cylinder is stored when the safety fence is closed. The small-diameter cylinder is configured to move laterally by a telescopic mechanism so that the small-diameter cylinder becomes a fence.The telescopic mechanism includes a fitting means connected to a motor attached to the support, and The small-diameter cylinder is fitted so that the small-diameter cylinder is moved in the lateral direction.

A platform opening / closing safety fence according to a second invention is characterized in that the fitting means comprises a plurality of racks provided inside the small-diameter cylinder and a worm gear extending from the motor and connected thereto.

According to a third aspect of the present invention, the fitting means comprises a nut connected to the inside of the small-diameter cylinder and a bolt connected to the motor.

A platform opening / closing safety fence according to a fourth aspect of the present invention includes two or more platform opening / closing safety fences arranged to face each other, a switch at the tip of the small-diameter cylinder provided, and the small-diameter cylinders are closed when the safety fence is closed. Alternatively, the lateral movement of the small-diameter cylinder is stopped when the small-diameter cylinder comes into contact with the object.

The open / close safety fence for a platform according to the fifth invention is characterized in that the large-diameter cylinder and the small-diameter cylinder are similar polygons.

According to the first invention, when the safety fence is opened, the small-diameter cylinder can be accommodated in the large-diameter cylinder, and when the safety fence is closed, the small-diameter cylinder can be laterally moved from the large-diameter cylinder and used as a fence. Therefore, it is possible to separate the track from the inside of the platform even though it is compact. It can be manufactured inexpensively compared to a tall automatic door.

According to the second invention, a plurality of racks provided inside the small-diameter cylinder and the worm gear extended from the motor and connected thereto are fitted to each other, so that the small-diameter cylinder can be easily formed only by the rotational motion of the motor. It can be moved laterally. Further, the moving speed in the lateral direction can be changed for the fitting size of the fitting means.

According to the third aspect of the present invention, the nut connected to the inside of the small-diameter cylinder and the bolt connected to the motor are fitted to each other, so that the small-diameter cylinder can be easily moved in the lateral direction only by rotating the motor. Can be. Further, the moving speed in the lateral direction can be changed depending on the size of the fitting of the fitting means.

According to the fourth aspect of the present invention, the switches provided at the ends of the small-diameter cylinders facing each other can contact each other to stop the lateral movement of the small-diameter cylinder. The position can be set freely.

According to the fifth aspect of the present invention, when the small-diameter cylinder and the large-diameter cylinder become polygonal and the small-diameter cylinder rotates together with the worm gear or the bolt due to a failure of the fitting means, the small-diameter cylinder is moved in the horizontal direction. The large-diameter cylinder and the small-diameter cylinder have a similar shape, so that the small-diameter cylinder can be moved in the lateral direction more efficiently.

It is a side view showing the whole opening and closing safety for platforms of the present invention. It is a perspective view of the safety fence viewed from the side. Cross section of safety fence FIG. 4 is a development view of the inside of the small-diameter cylinder when a rack is used as a fitting means. It is a diagram in which two platform open / close safety fences are arranged facing each other. It is the figure which showed the compression switch of the front-end | tip, 6-1 is sectional drawing seen from the side, 6-2 is the front view, and 6-3 is the rear view. FIG. 4 is an exploded perspective view when a bolt and a nut are used as a fitting means.

An embodiment for implementing a platform open / close safety fence according to the present invention will be described below based on an embodiment. The present invention is not limited to the following examples.

As shown in FIG. 1, the platform open / close safety fence of the present invention includes two pillars and a safety fence arranged on the platform, and the safety fence is housed in a cylindrical large-diameter cylinder and therein. It consists of a small-diameter cylinder. When the safety fence is opened, that is, when the passenger gets on and off, the small-diameter cylinder is accommodated in the large-diameter cylinder, and when the safety fence is closed, that is, when a fall accident other than when the passenger gets on and off may occur. The small-diameter cylinder housed in the large-diameter cylinder is moved laterally by the telescopic mechanism ("lateral direction" is the horizontal direction with respect to the ground; the same applies hereinafter). It is configured so that In addition, a motor is attached to the upper part of the column, and an expansion / contraction mechanism is provided so that the power of the motor rotates the small-diameter cylinder in the lateral direction.

The expansion mechanism has a fitting means, and the fitting means extends from a motor and is connected to a plurality of racks provided inside the small-diameter cylinder as shown in FIGS. The worm gear is rotated by the operation of the motor, the worm gear and a plurality of racks are fitted, and the small-diameter cylinder expands and contracts in the horizontal direction.

The plurality of racks provided inside the small-diameter cylinder are not provided with irregularities on the entire inner side as shown in, for example, a developed view of the inside of the small-diameter cylinder in FIG. By arranging the racks in a row and arranging the racks at regular intervals, the weight of the small-diameter cylinder can be reduced, and the weight can be further reduced by arranging the racks in pieces. Further, since the racks are arranged in parallel with the lateral direction, the racks can be easily arranged at the time of manufacturing. It should be noted that, of the plurality of racks provided in the small-diameter cylinder, the rotational motion can be converted into the lateral motion only by fitting any one of the racks to the worm gear.

FIG. 3 is a sectional view of the safety fence. As shown in this cross-sectional view, the large-diameter cylinder and the small-diameter cylinder have a triangular cross-section, so that the small-diameter cylinder rotates together with the worm gear (the same applies to a bolt described later) due to, for example, a problem with the fitting means. In such a case, it is possible to prevent the small-diameter cylinder from moving at all in the lateral direction. Also, since the large-diameter cylinder and the small-diameter cylinder have similar shapes of triangles having different sizes, when the small-diameter cylinder rotates together with the worm gear, each vertex of the small-diameter cylinder contacts the inside of the large-diameter cylinder. As a result, the small-diameter cylinder is prevented from rotating together with the worm gear, and the lateral movement can be performed more efficiently.

Next, the opening and closing of the platform open / close safety fence will be described with reference to FIGS. 5 and 6. FIG. 5 is a diagram in which the platform open / close safety fences of the present invention are arranged to face each other. By arranging the end compression switches in contact with each other, it is possible to provide a safety fence on the platform. As for the opening and closing method, when opening the safety fence that requires passengers to get on and off, turn on the operation switch of the platform opening and closing safety fence, rotate the motor, store the small caliber cylinder in the large caliber cylinder, and after the Turns off the operation switch of the platform open / close safety fence, turns the motor half a turn, and moves the small-diameter cylinder horizontally. At this time, as shown in FIG. 6, a tip compression switch is provided to stop the movement of the small-diameter cylinder in the lateral direction when the small-diameter cylinders contact each other at the center. In addition, since the small-diameter cylinder is designed to stop even when it comes into contact with an object such as a late-moving passenger or luggage, it is possible to get on and off safely. By stopping the tip when the tip comes into contact with the object by the tip compression switch, it becomes possible to cope with any spacing between the columns when the platform open / close safety fence is arranged.

The tip compression switch will be described in detail with reference to FIG. 6A is a cross-sectional view of the tip compression switch as viewed from the side, FIG. 6B is a front view, and FIG. 6C is a rear view. The tip compression switch is attached to the tip of the small-diameter cylinder, and is made of a softener and provided with a spring. When the tip compression switches contact each other or the tip compression switches come into contact with the object, the tip moves to the motor side while generating elasticity of the spring due to the pressure. The center rod is fixed to the tip, and the electrode contact terminal rod contacts the electrode plate and is energized. When pressure is generated at the tip, the electrode terminal rods move to the motor side together, the rotation of the motor is stopped due to the loss of contact with the electrode board, and the horizontal movement of the small-diameter cylinder stops. It has become.

Next, an embodiment in which a bolt and a nut are used as fitting means will be described with reference to FIG. A nut is connected to the inside of the small-diameter cylinder, and a bolt is fitted to the nut. The bolt is connected to the motor. When the motor rotates, the bolt is rotated, and the nut moves laterally along the unevenness of the bolt, so that the small-diameter cylinder moves laterally. The length of the bolt is substantially the same as the length of the small-diameter cylinder, and the lateral movement speed can be increased by increasing the unevenness of the fitting portion between the bolt and the nut.

As described above, in the embodiment, the example of the platform opening / closing safety fence including two pillars is illustrated in FIG. 1. However, the invention is not limited thereto. A plurality of struts may be arranged in the entire platform range that is not used as an entrance when a normal train stops, thereby ensuring safety.

Also, in FIG. 1 according to the embodiment, an example of a platform opening / closing safety fence in which a motor is provided only above one support is shown, but the present invention is not limited to this example. An open / close safety fence for a platform including a plurality of safety fences may be provided at the center of the fence to increase the strength of the safety fence and to prevent falling of a short stature infant.

DESCRIPTION OF SYMBOLS 1 Small-diameter cylinder 2 Large-diameter cylinder 3 Motor 4 Tip compression switch 5 Worm gear 6a Rack for worm gear 6b Rack for worm gear 6c Rack for worm gear 7 Rear compression switch 8 Platform 9 Post 10 Nut 11 Bolt

4-1 Flexible tip 4-2 Inner cylinder 4-3 Outer cylinder 4-4 Spring 4-5 Center rod 4-6 Electrode contact terminal rod 4-7 Electrode panel

Claims (5)

An opening / closing safety fence for a platform comprising a plurality of pillars and a safety fence arranged on a platform, wherein the safety fence has a cylindrical body composed of a large-diameter cylinder and a small-diameter cylinder having different diameters. The small-diameter cylinder is accommodated in the large-diameter cylinder at the time of opening, and the small-diameter cylinder in the large-diameter cylinder is moved laterally by a telescopic mechanism while the safety fence is closed, so that the small-diameter cylinder is moved. Is configured as a fence, and the expansion and contraction mechanism is configured such that the fitting means connected to a motor attached to the support and the small-diameter cylinder are fitted, and the small-diameter cylinder is moved in a lateral direction. Opening / closing safety fence for platforms, characterized in that: The open / close safety fence for a platform according to claim 1, wherein the fitting means comprises a plurality of racks provided inside the small-diameter cylinder and a worm gear extending from the motor and connected thereto. The open / close safety fence for a platform according to claim 1, wherein the fitting means comprises a nut connected to the inside of the small-diameter cylinder and a bolt connected to the motor. Two or more platform open / close safety fences are arranged facing each other, a switch at the tip of the small-diameter cylinder is provided, and when the safety fence is closed, the small-diameter cylinders or the small-diameter cylinder contact the object. 4. The open / close safety fence for a platform according to claim 1, wherein the lateral movement of the small-diameter cylinder is stopped by doing so. The open / close safety fence for a platform according to any one of claims 1 to 4, wherein the large-diameter cylinder and the small-diameter cylinder have a similar polygonal shape.

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