Platform fall prevention material and installation method of platform fall prevention material

Abstract

To make it possible to facilitate position adjustment in a short time without requiring preparation for replacement and cope with fine adjustment on a job site.SOLUTION: A platform fall prevention material 1 which is installed in a front end part 21 of a platform 20 on a vehicle side and protrudes between the vehicle and the front end part 21 in its installation state, includes a plate-like main body part 2 of a rectangular shape in plan view and a plate-like adjustment metal fitting 3 mounted on an upper surface of the front end part 21. A connection plate 9 capable of being fixed to the platform 20 is provided on a lower surface of the main body part 2 while interposing the adjustment metal fitting 3 therebetween. The main body part 2 can be longitudinally positioned while placing the connection plate 9 on the adjustment metal fitting 3 before being fixed to the platform 20.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present disclosure relates to a platform fall prevention material that is attached to the front end of a platform at a railway station, and a method for installing the platform fall prevention material on the platform. [Background technology]

[0002] At station platforms, platform fall prevention materials are sometimes attached to the front end of the platform on the vehicle side to prevent people or objects from falling into the gap between the platform and the vehicle. These platform fall prevention materials are made of an elastic material such as rubber and are fixed to the front end of the platform with mortar, so that they protrude from the front end of the platform toward the vehicle. Patent Document 1 also discloses a platform fall prevention device made of thermoplastic elastomer, which comprises a base section that follows the side wall that is the front of the platform, a comb tooth section consisting of multiple comb teeth extending horizontally from the base section, and a top plate section that extends from the base section and covers the upper surface of the comb tooth section.This platform fall prevention device is attached to the front end of the platform in a state where it protrudes from the front end of the platform toward the vehicle by installing, via mortar, a mounting fixture that has a holding section that hangs down along the front of the platform, and fixing the base section to the holding section of the mounting fixture with bolts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-87973 Summary of the Invention [Problem to be solved by the invention]

[0004] If the gap between the vehicle and the platform anti-fall prevention material changes due to wear on the rails or slight changes in the relative position of the rails and platform, the position will need to be adjusted in the fore-and-aft direction (and the position will also need to be adjusted again when the platform anti-fall prevention material is replaced). However, if the platform fall prevention material is fixed in place with mortar, adjusting the position requires removing the platform fall prevention material, removing the mortar, pouring the mortar again, and then reinstalling the platform fall prevention material, which is time-consuming and labor-intensive. In the case of Patent Document 1, the mounting fixture can be used as is, eliminating the need to remove the mortar or re-cast it. However, it is necessary to prepare new platform fall prevention materials for replacement, and since fine adjustments cannot be made in the front-to-back direction, there is a risk that the material will not be usable if the dimensions do not match on site.

[0005] Therefore, the purpose of this disclosure is to provide a platform fall prevention material and its installation method that does not require the preparation of replacement parts, allows for easy position adjustment in a short amount of time, and allows for fine adjustments on site. [Means for solving the problem]

[0006] In order to achieve the above object, the first configuration of the present disclosure is a platform fall prevention material that is installed at the front end of the platform on the vehicle side and protrudes between the vehicle and the front end in the installed state, a main body portion that is rectangular in plan view and has a plate shape; a plate-shaped adjustment fitting attached to an upper surface of the front end portion, The underside of the main body is provided with a connecting and fixing part that can be fixed to the platform with the adjustment fitting interposed therebetween, and the main body can be positioned in the forward and backward directions with the connecting and fixing part placed on the adjustment fitting before being fixed to the platform. Another aspect of the first configuration is characterized in that, in the above configuration, the connecting and fixing portion is provided with a long hole extending in the fore-and-aft direction, facing upward toward the platform, and through which an anchor bolt passing through the adjustment fitting is inserted. Another aspect of the first configuration is characterized in that, in the above configuration, the elongated holes are arranged in parallel in the left-right direction. Another aspect of the first configuration is characterized in that, in the above configuration, the front part of the main body part is thicker than the rear part and protrudes downward, and the front end of the connecting and fixing part is bent downward in an inverted L shape along the rear surface of the front part. Another aspect of the first configuration is characterized in that, in the above configuration, the front end of the connecting and fixing part and the front end part are spaced apart in the front-rear direction. In order to achieve the above-mentioned object, the second configuration of the present disclosure is a method of installing platform fall prevention material, which is characterized by fixing an adjustment fitting of the platform fall prevention material described in any of the first configurations to the upper surface of the front end of the platform, placing the connecting and fixing part on the adjustment fitting to adjust the fore-and-aft position of the main body part, and then fixing the connecting and fixing part to the platform. [Effects of the Invention]

[0007] According to the present disclosure, since the main body is not directly fixed to the platform, it can be easily attached, detached, and its position adjusted on-site. Furthermore, the position adjustment can be performed using the existing main body. Therefore, there is no need to prepare a replacement, and the position adjustment of the main body can be easily performed in a short time, and fine adjustments can also be made on-site. According to another aspect of the present disclosure, in addition to the above-mentioned effects, the connecting and fixing part is provided with an elongated hole through which an anchor bolt that passes through the adjustment fitting is inserted, so that the connecting and fixing part can be fixed to the platform using the anchor bolt with the adjustment fitting interposed therebetween. Also, by relatively moving the anchor bolt within the elongated hole, the position of the main body part in the fore-and-aft direction can be easily adjusted. According to another aspect of the present disclosure, in addition to the above effects, multiple long holes are arranged in parallel in the left-right direction, which allows freedom in the installation position of the anchor bolt and allows it to be placed to avoid reinforcing bars, etc. within the platform. According to another aspect of the present disclosure, in addition to the above effects, the front end of the connecting and fixing part is bent downward in an inverted L-shape along the rear surface of the front part of the main body part that protrudes downward, thereby protecting the rear surface of the front part of the main body part that is made of an elastic material and preventing damage or deformation of the front part. According to another aspect of the present disclosure, in addition to the above-mentioned effects, the front end of the connecting and fixing part and the front end of the platform are spaced apart in the front-to-rear direction, so that the rearward position of the main body part can be easily adjusted. [Brief explanation of the drawings]

[0008] [Figure 1] This is an oblique view of a platform fall prevention material. [Figure 2] FIG. [Figure 3] FIG. 3 is an enlarged cross-sectional view taken along the line AA in FIG. 2. [Figure 4] FIG. 3 is an enlarged cross-sectional view taken along the line BB in FIG. 2. [Figure 5] FIG. 2 is an exploded perspective view of the main body as viewed from above. [Figure 6] FIG. 2 is an exploded perspective view of the main body as seen from below. [Figure 7] (A)(B) is an explanatory diagram showing the procedure for installing platform fall prevention material on a platform. [Figure 8] (A)(B) is an explanatory diagram showing the procedure for installing platform fall prevention material on a platform. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of a platform fall prevention member according to the first configuration. Platform fall prevention equipment 1 includes a main body 2 and an adjustment fitting 3. In the description of platform fall prevention equipment 1, the front end side of the platform on which it is installed will be referred to as the front, and the upper side of the platform as the top. First, as shown in FIG. 2, the main body 2 is a rectangular, thick-walled plate made of an elastic material such as rubber. As shown in FIG. 3, the front portion 4 of the main body 2 is thicker than the rear portion over its entire length in the left-right direction and protrudes downward. A thin, flat plate portion 5, which is continuous with the rear portion, is formed on the upper surface of the front portion 4. Below the flat plate portion 5, a plurality of plate-like ribs 6, 6··, which are oval in plan view and protrude forward, are integrally formed on the front portion 4 at equal intervals in the left-right direction. Each plate-like rib 6 is formed without contact with the flat plate portion 5 and is elastically deformable in response to loads from the left-right direction and the front. Multiple sets of three ridges 7, 7·· extending in the left-right direction for anti-slip purposes are formed at predetermined intervals in the front-to-rear direction on the upper surface of the main body 2, including the front portion 4.

[0010] A recess 8 is formed on the underside of the main body 2, behind the front portion 4, excluding the left and right side edges and the rear edge, and a connecting plate 9 is provided in the recess 8. The connecting plate 9 is vulcanization bonded to the main body 2 within the recess 8. A front end 10 of the connecting plate 9 is bent downward along the rear surface of the front portion 4. As shown in Figures 4 and 5, a pair of left and right mounting holes 11, 11 are formed in the rear of the main body 2. Each mounting hole 11 has a rectangular shape in plan view extending in the front-to-rear direction and penetrates in the up-to-down direction. Directly below the mounting holes 11, 11 in the connecting plate 9, a pair of left and right elongated holes 13, 13 extending in the front-to-rear direction are formed to penetrate therethrough.

[0011] A lid 14 having the same shape in a plan view is fitted into each mounting hole 11. Each lid 14 is made of the same elastic material as the main body 2, and as shown in FIG. 6 , an oval relief recess 15, 15 is formed on the underside. The relief recess 15, 15 is larger in front-to-back length and left-to-right width than the elongated holes 13, 13 of the connecting plate 9. The relief recess 15, 15 is positioned to cover the elongated holes 13, 13 from above when the lid 14 is fitted into the mounting hole 11. An expansion portion 11a that expands front-to-back and left-to-right is formed around the entire periphery at the lower part of the inner circumferential surface of each mounting hole 11. An engagement portion 14a that engages with the expansion portion 11a when fitted into the mounting hole 11 is formed around the entire periphery at the lower part of the outer circumferential surface of each lid 14. A metal reinforcing plate 16 is embedded above the relief recesses 15, 15 in each lid portion 14.

[0012] The adjustable fitting 3 has the same left-right width as the main body 2 and the connecting plate 9, and its front-to-rear length is slightly shorter than the length from the front rear surface to the rear end of the connecting plate 9. The thickness of the adjustable fitting 3 is greater than the thickness of the connecting plate 9. A plurality of through holes 17, 17... are formed slightly rearward from the center of the adjustable fitting 3. The through holes 17 have approximately the same shape as the elongated holes 13 of the connecting plate 9, and are formed in pairs on the left and right sides of the adjustable fitting 3 to match the positions of the elongated holes 13.

[0013] A construction method according to a second configuration for installing the platform fall prevention member 1 configured as above on a platform will be described. As shown in Figure 7(A), on the upper surface of the front end 21 of the platform 20, a cutout 22 for installing multiple platform fall prevention members 1 lined up in the left-right direction is formed by cutting the surface of the platform 20. An anchor bolt 23 is embedded facing upward in this cutout 22. The anchor bolts 23 can pass through the through holes 17 of the adjustment fittings 3 of the platform fall prevention members 1 and the elongated holes 13 of the connecting plates 9, and multiple anchor bolts 23 are arranged in the left-right direction to match the positions of each of the multiple platform fall prevention members 1. First, a predetermined thickness of mortar 24 is poured onto the upper surface of the cutout portion 22 . Next, as shown in Figure 7(B), the adjustment fitting 3 is placed and fixed on the mortar 24. At this time, two anchor bolts 23, 23 on the left and right are inserted through two of the four through holes 17, 17.

[0014] Next, as shown in Figure 8(A), the main body 2 before the lid 14 is attached is set on the adjustable fitting 3. At this time, the anchor bolts 23 that have passed through each through hole 17 are respectively passed through the long holes 13 of the connecting plate 9. In this state, the position of the main body 2 in the front-to-rear direction is adjusted. At this time, the main body 2 can be adjusted by sliding the connecting plate 9 on the adjustment fitting 3 within the range of relative movement of the anchor bolt 23 within the elongated hole 13. Because the front end 10 of the connecting plate 9 is located forward and away from the front end 21 of the platform 20, rearward position adjustment can also be performed without hindrance.

[0015] Once the position of the main body 2 in the front-to-rear direction has been determined, nuts 25 are fastened to the anchor bolts 23, respectively, as shown in Figure 8(B). As a result, the main body 2 is pressed against the adjustment fitting 3 and fixed within the cutout portion 22. Finally, the lid 14 is fitted into the mounting hole 11. At this time, interference can be avoided by fitting the lid 14 so that the upper ends of the nuts 25 and anchor bolts 23 fit into the relief recesses 15, 15. If a gap occurs between the rear surface of the main body 2 and the inner surface of the cutout 22, fill it with mortar 26. In this way, the platform fall prevention materials 1 are fixed side by side in the left-right direction with the front portions 4 protruding forward from the front end portion 21 of the platform 20.

[0016] If the gap between the vehicle and the main body 2 changes due to wear of the rail or a slight change in the positional relationship between the rail and the platform 20, position adjustment is required. At this time, if the lid 14 is removed and the exposed nut 25 is loosened, the main body 2 can be moved forward and backward on the adjustment fitting 3, as in Figure 8(A). Therefore, the position can be easily adjusted by sliding the main body 2 to the desired position. After adjusting the position, the nut 25 is retightened and the lid 14 is fitted into the mounting hole 11 to complete the work. If a gap appears between the rear mortar 26 due to the forward position adjustment, the gap can be filled with mortar or the like. If a rearward position adjustment is required, only the rear mortar 26 can be removed. Furthermore, if mortar is filled between the side surfaces of the platform fall prevention materials 1 on both the left and right ends and the inner surfaces of the cutouts 22, the mortar must be removed and refilled. In either case, the work required is reduced compared to fixing the main body 2 directly to the mortar without using the adjustment fittings 3.

[0017] In this way, the platform fall prevention material 1 of the above form includes a plate-shaped main body 2 that is rectangular in plan view, and a plate-shaped adjustment fitting 3 that is attached to the upper surface of the front end 21 of the platform 20, and a connecting plate 9 (an example of a connecting fixing part) is provided on the underside of the main body 2 that can be fixed to the platform 20 with the adjustment fitting 3 interposed therebetween, so that the main body 2 can be positioned in the fore-and-aft direction with the connecting plate 9 placed on the adjustment fitting 3 before being fixed to the platform 20. In addition, the installation method for the platform fall prevention material 1 of the above form is as follows: fix the adjustment fitting 3 of the platform fall prevention material 1 to the upper surface of the front end portion 21 of the platform 20, place the connecting plate 9 on the adjustment fitting 3 to adjust the fore-and-aft position of the main body portion 2, and then fix the connecting plate 9 to the platform 20. According to this configuration, the main body 2 is not directly fixed to the mortar 24 on the platform 20, so that it can be easily attached, detached, and its position adjusted on-site. In addition, the position can be adjusted using the existing main body 2. Therefore, there is no need to prepare a replacement, and the position of the main body 2 can be easily adjusted in a short time, and fine adjustments can also be made on-site.

[0018] The connecting plate 9 is provided with a long hole 13 extending in the front-rear direction and facing upward toward the platform 20, through which an anchor bolt 23 passing through the adjustment fitting 3 is inserted. Therefore, the connecting plate 9 can be fixed to the platform 20 using the anchor bolt 23 with the adjustment fitting 3 interposed therebetween. Also, by relatively moving the anchor bolt 23 within the long hole 13, the position of the main body 2 in the front-to-rear direction can be easily adjusted. A plurality of the long holes 13 are arranged in parallel in the left-right direction. This allows for flexibility in the installation position of the anchor bolt 23, allowing it to be positioned to avoid reinforcing bars and the like within the platform 20. The front portion 4 of the main body 2 is thicker than the rear portion and protrudes downward, and the front end 10 of the connecting plate 9 is bent downward along the back surface of the front portion 4 in an inverted L shape. Therefore, the rear surface of the front portion 4 of the main body 2 made of an elastic material can be protected, and damage and deformation of the front portion 4 can be prevented. The front end 10 of the connecting plate 9 and the front end 21 of the platform 20 are spaced apart in the front-to-rear direction. Therefore, the rearward position adjustment of the main body 2 can be easily performed.

[0019] Modifications of the present disclosure will be described below. The main body is preferably colored in a highly visible color such as yellow or orange. The number and position of the anti-slip ridges provided on the main body may be changed, or an anti-slip shape other than ridges may be used. The anti-slip feature may also be eliminated altogether. The number and shape of the plate-like ribs provided on the front of the main body can be changed as appropriate. Furthermore, the plate-like ribs may be eliminated, and the front may be made flat like the rear. In this case, the main body may have the same thickness from front to back. The dimensions of the main body in plan view, front to back, left to right, and right to left, are not limited to the above-described form and can be changed as appropriate. The positions and shapes of the mounting holes and lid are not limited to the above. A single lid may be fitted into a single connected mounting hole instead of a pair of left and right mounting holes. The mounting holes may be replaced by mounting recesses having elongated holes or the like at the bottom through which anchor bolts pass. In this case, the mounting recesses may be open to the left and right side surfaces of the main body. The lid may not be completely separated from the main body, but may be connected by thin hinges or the like.

[0020] The connecting and fixing part is not limited to the connecting plate of the above embodiment. For example, the front end may not be bent downward as in the above embodiment, but may be a flat plate overall. The number, arrangement, and front-to-rear length of the elongated holes in the connecting and fixing part can also be changed as appropriate. However, as long as the anchor bolt can pass through and the connecting and fixing part can slide in the front-to-rear direction, through holes of shapes other than elongated holes can also be used. The connecting and fixing portion is not limited to a structure in which one connecting portion is provided to one main body portion, but may be a structure in which multiple connecting plates each having a small width from side to side are fixed to one main body portion, and long holes or the like are formed in each connecting plate. The main body and the connecting and fixing part can be integrated by other fixing means such as screws or adhesives, instead of vulcanization adhesion.

[0021] The adjustable fitting can be modified as needed, not only in its planar shape and thickness, but also in the number and arrangement of the through holes and its longitudinal length. However, the through holes are not limited to elongated holes, and multiple round holes or the like may be arranged at predetermined intervals in the longitudinal direction. The adjustable fitting may also have a structure in which multiple members are joined together (for example, stacked in the thickness direction). As with the modified example of the connecting and fixing part, the adjustable fitting is not limited to a structure in which one fitting is provided for one main body part, and for example, multiple adjustable fittings with a small width from side to side may be installed for one main body part. In this case, the anchor bolt may be arranged between the adjustable fittings rather than passing through them. In the above embodiment, the adjustment fitting is separate from the main body portion, but the adjustment fitting may be connected to the main body portion so as to be movable relative to the main body portion in the front-rear direction.

[0022] In the platform, the shape, depth, length, etc. of the cutout portion are not limited to those described above. The number, arrangement, and shape of the anchor bolts can also be changed as appropriate. For example, the anchor bolts are not limited to the number and arrangement in which they pass through some of the through holes of the adjustment fitting and the long holes of the connecting plate, as in the above-described embodiment, but may be numbered and arranged in such a way that they pass through all of the through holes and long holes. Furthermore, the anchor bolts may be arranged in front of and behind one through hole and long hole so that multiple bolts pass through it. In the above embodiment, only the upper portion including the front end of the platform projects forward like a canopy, but the front end may be wall-shaped, with the entire front surface of the platform projecting forward. [Explanation of symbols]

[0023] 1 Platform fall prevention material, 2 Main body, 3 Adjustment fitting, 4 Front part, 6 Plate-shaped rib, 9 Connecting plate, 10 Front end, 11 Mounting hole part, 13 Long hole, 14 Cover part, 17 Through hole, 20 Platform, 21 Front end, 22 Notch part, 23 Anchor bolt, 24, 26 Mortar, 25 Nut.

Claims

1. A platform fall prevention material that is installed at the front end of the platform on the vehicle side and protrudes between the vehicle and the front end in the installed state, a main body portion that is rectangular in plan view and has a plate shape; a plate-shaped adjustment fitting attached to an upper surface of the front end portion, A platform fall prevention material characterized in that a connecting and fixing portion that can be fixed to the platform with the adjustment fitting interposed therebetween is provided on the underside of the main body portion, and the main body portion can be positioned in the forward and backward directions with the connecting and fixing portion placed on the adjustment fitting before being fixed to the platform.

2. The platform fall prevention material described in claim 1, characterized in that the connecting and fixing portion has a long hole extending in the forward and backward directions and facing upward toward the platform through which an anchor bolt passing through the adjustment fitting is inserted.

3. The platform fall prevention material according to claim 2, characterized in that a plurality of the long holes are arranged in parallel in the left-right direction.

4. A platform fall prevention material as described in any one of claims 1 to 3, characterized in that the front part of the main body is thicker than the rear part and protrudes downward, and the front end of the connecting and fixing part is bent downward in an inverted L-shape along the rear surface of the front part.

5. The platform fall prevention device according to claim 4, characterized in that the front end of the connecting and fixing portion and the front end portion are spaced apart in the front-to-rear direction.

6. A method for installing platform fall prevention material, characterized in that an adjustable fitting of a platform fall prevention material described in any one of claims 1 to 5 is fixed to the upper surface of the front end of the platform, the connecting and fixing part is placed on the adjustable fitting to adjust the fore-and-aft position of the main body part, and then the connecting and fixing part is fixed to the platform.

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