JP4871064B2 - Expansion joint cover for platforms - Google Patents

Description

  The present invention relates to an expansion joint cover for a platform that covers and covers a clearance provided as an expansion portion for absorbing thermal expansion / contraction generated in the platform, deflection due to its own weight, displacement due to an earthquake, or uneven settlement of a foundation.

  On a platform with a general length of 150M in the longitudinal direction, it is separated by about 10M in the longitudinal direction in order to absorb thermal expansion and contraction, deflection due to its own weight, displacement due to earthquakes, or uneven settlement of the foundation. Clearance across the width direction is provided, and these clearances are covered and covered with a platform expansion joint cover in consideration of the safety of the passerby.

  Conventionally, in the platform 50 shown in FIGS. 7 (a) and 7 (b), one surface 52 made of concrete whose surface is covered with one surface layer body 51 such as a tile and the other surface layer body 53 such as a tile surface. A longitudinal direction {direction of arrow X in Fig. 7 (a)} via a clearance 55 that crosses the other concrete frame 54 covered with concrete in the width direction {direction of arrow Y in Fig. 7 (a)} of the platform 50} By arranging them adjacent to each other, the directions in which the housings 52 and 54 and the surface layer bodies 51 and 53 come close to and separate from each other due to thermal expansion and contraction, deflection due to their own weight, displacement due to an earthquake, or non-uniform settlement of the foundation {FIG. a) arrow X direction}, a direction perpendicular to the approaching and separating directions on the horizontal plane {arrow Y direction in FIG. 7 (a)}, and a direction perpendicular to the horizontal plane {arrow Z direction in FIG. 7 (b)] } Orthogonal 3 Relative displacement generated as a movement in the direction in which the displacement components of the directions are combined is allowed, and the clearance 55 is covered and covered by the platform expansion joint cover 56 to ensure the safety of the passerby. ing.

  The expansion joint cover 56 conceals the clearance 55 and covers and covers the metal tread 56a, and the tread 56a and each of the casings 52 and 54 and the surface layers 51 and 53 are secured to the clearance 55 with dust. And a sealing material 57 for preventing water from entering.

  However, in this type of expansion joint cover 56, warping due to temporal deformation occurs in the tread 56 a, and a protrusion or bulge that rises or dents above the surface of each surface layer 51, 53 occurs. It is a danger. In addition, the platform width of the step board 56a, that is, the dimension in the direction of the arrow X is considerably larger than the surface width of the clearance 55 (the dimension in the direction of the arrow X), and the platform constructed in an environment that is exposed to wind and rain when it rains. Of course, even in a platform constructed in an environment that is not exposed to wind and rain such as an underground station, a water film may be formed on the surface of the tread 56a having a large surface width to induce a slip of a passerby. And increases the danger for passers-by, so it is less safe and less reliable.

  The slip of the passerby can be prevented by sticking a slip sheet on the surface of the step board 56a. However, even if an additional process is applied to attach the slip sheet, the slip sheet will be damaged due to deterioration due to ultraviolet rays or burning of cigarettes, and the slip function will be reduced in a short period of time. Therefore, the sheet must be replaced frequently, and the durability is low and the reliability is poor.

  The sealing material 57 generates a phenomenon that rises above the surface layer bodies 51 and 53 due to thermal expansion in summer, and a repair work for excising the raised portion is required. Further, a phenomenon occurs in which a gap is generated due to heat shrinkage in winter and the sealing performance is deteriorated, and a repair work for filling the gap is required. In addition, since the sealing material 57 is generally composed of a polysulfide-based sealing material 57 with low hardness, the sealing material 57 is easily damaged by the tip of the umbrella or the tip of the pin heel and is easily damaged by the seal, resulting in poor durability.

  That is, the expansion joint cover 56 shown in FIGS. 7 (a) and 7 (b) has a drawback that safety and durability are low and reliability is inferior despite complicated additional processing and repair work. ing.

  On the other hand, there is an expansion joint cover 100 for a platform shown in FIGS. This expansion joint cover 100 is described in Patent Document 1. That is, the expansion joint cover 100 is provided by hanging the locking pieces 102 having notches 102a in the longitudinal direction of the tread plate on both sides of the lower surface of the tread plate 101, and also hung from the tread plate 101 on the opposite surface of the upper edge portion of the clearance 103. An engaging pin 104 that can be locked with the notch 102a of the locking piece 102 is protruded, and an attachment / detachment hole 101a for inserting a tool used when attaching / detaching the tread 101 is provided at an appropriate position of the tread 101. It is.

Japanese Utility Model Publication No. 4-13286.

  In the expansion joint cover 100 described in Patent Document 1, even if the tread 101 is made of metal like the tread 56a shown in FIGS. Since the warpage due to the temporal deformation of the tread plate 101 can be suppressed by the engagement between the notch portion 102a and the engagement pin 104, partial protrusion and depression of the tread plate 101 can be suppressed. Therefore, it is possible to avoid the danger of a passerby due to the partial protrusion and depression of the tread board 101. However, even if pedestrian slips due to the formation of a water film on the surface of the tread board 101, complicated additional processing for attaching a slip-on sheet to the surface of the tread board 101, and even if additional processing is performed The above-mentioned disadvantages that the re-seat sheet must be replaced frequently due to deterioration due to burning or burning out of tobacco still remain. In other words, the expansion joint cover 100 described in Patent Document 1 also has a drawback of low safety and durability and poor reliability.

  On the other hand, when removing the existing tread board 101 when it is necessary to replace the tread board 101, the tool is hooked in the tool attaching / detaching hole 101a, and the tread board 101 is first slid in a direction to release the engagement between the notch 102a and the engaging pin 104. There must be. For this reason, not only the step board 101 that needs to be replaced but also the step board 101 that does not need to be replaced, which is disposed adjacent to the step board 101, must be removed once, and the work of replacing the step board 101 is complicated. Moreover, since dust enters the clearance 103 from the tool attachment / detachment hole 101a or rainwater or the like drops, the sealing performance is poor. Further, the end face on the track side in the platform 105 has a problem that it does not look good because the clearance 103 is opened with the clearance 103 exposed.

  The present invention solves such a problem, and the object of the present invention is to allow for relative displacement of each housing and each surface layer body, but due to partial protrusions and slips, etc. Improve safety by avoiding the dangers of passers-by and improve reliability by suppressing deterioration damage due to external causes and improving durability, easy attachment and detachment work, excellent sealing performance, and arranging the appearance It is to provide an expansion joint cover for a platform with a good appearance.

In the present invention, one casing whose surface is covered with one surface layer body and the other casing whose surface is covered with the other surface layer body are adjacent to each other in the longitudinal direction through a clearance crossing in the width direction. Each casing and each surface layer are close to and away from each other, a direction perpendicular to the approaching and separating directions on a horizontal plane, and a direction in which displacement components in three orthogonal directions perpendicular to the horizontal plane are combined. An expansion joint cover for a platform that conceals and covers the clearance of a platform that allows relative displacement that occurs as a movement to
A pair of L-shaped aluminum mold edges having vertical portions extending in the width direction within the clearance and facing each other in the longitudinal direction, and the longitudinal direction on the upper edges of the vertical portions of these edges A cover body made of a highly elastic material that covers and covers the both ends of the cover, covering the clearance, and a receiving material that supports the cover body by straddling each vertical portion below the cover body. Prepared,
The horizontal portion of the pair of edge members extends to a direction away from the clearance and is fixed to each of the casings separately via an anchor member,
The upper edge portion of each vertical portion extends to the position of each surface layer body, and the upper edge portion is formed with a cover body locking groove extending opposite to each other toward the other vertical portion, Below the cover body locking groove, there is an interval that is larger than the cover body locking groove and allows the housing and the surface layer to be relatively displaced in a direction close to each other. And receiving member support pieces extending opposite to each other toward the vertical part of the other side,
Both ends in the longitudinal direction of the receiving material are slidably supported on the upper surface of the receiving material support piece,
Both ends of the cover body in the longitudinal direction are engaged and supported in the cover body locking groove, and the central part is placed on the upper surface of the receiving material to conceal the clearance by the cover body. An expansion joint cover for a platform, characterized by being covered.

  Further, the present invention is characterized in that the upper end surface of the cover body is flush with the upper end surface of the vertical portion of each edge member.

  Further, according to the present invention, the end surface of the cover body on the line side is connected to each edge member via a wedge-shaped direction change cover body made of a highly elastic material disposed between the line-side corner portions of the vertical portions of the edge members. It is continuous with the upper end of the vertical cover body made of a highly elastic material arranged between the line side end edges of the vertical portion, and the cover body, the wedge-shaped direction change cover body and the vertical cover body are joined to each other by heat welding. It is characterized by being connected.

  According to the present invention, the surface of the wedge-shaped direction changing cover body is formed by an inclined surface that descends from the line-side end face of the cover body toward the upper end face of the vertical cover body, and the upper edge of the vertical portion of each edge member The line-side corner portion of the portion is formed flush with the surface of the wedge-shaped direction change cover body, and the line-side end surface of the vertical cover body is flush with or substantially flush with the line-side end surface of the vertical portion of each edge member It is one.

  Furthermore, the present invention is characterized in that both ends of the vertical cover body in the longitudinal direction are fitted to holding bodies fastened opposite to each other at the line side end of the vertical portion of each edge member. To do.

  Furthermore, the present invention is characterized in that the highly elastic material is composed of a thermoplastic elastomer provided with a plurality of hollow portions penetrating in the longitudinal direction.

According to the present invention, if the relative displacement generated as a movement in the direction in which the displacement components in the three orthogonal axes directions of each housing and each surface layer body are combined is within the design value range, the relative displacement is followed. Since the cover body made of the high elastic material is elastically deformed, the cover body made of the high elastic material can hold the basic form of covering and covering the clearance without being damaged.
In addition, the cover body made of a highly elastic material has both ends in the longitudinal direction of the platform, that is, both ends in the width direction of the cover body itself are engaged with the upper edge of the vertical portion of the pair of L-shaped aluminum molds. Since it is stretched and the lower side is supported by the receiving material straddling the pair of edge members, it is possible to suppress the cover body made of high elastic material from projecting and sinking from the surface of each surface layer body. A high anti-slip function due to the fact that the cover body made of a highly elastic material has a higher coefficient of friction and superior water repellency than the metal treads described above, which can ensure safety of traffic. Can improve safety and improve reliability.
Furthermore, the cover body made of a highly elastic material can be covered by a simple operation in which both end portions in the width direction are pushed into the upper edge portion of the vertical portion of the pair of L-shaped aluminum mold materials from above and engaged. The body can be easily mounted across the upper edge of the vertical part, and the cover body can be attached to the vertical part by a simple operation of pulling the both ends in the width direction upward and pulling it from the upper edge of the vertical part. Since it can be easily removed from the upper edge of the detachable part, it is easy to detach.

  Further, according to the present invention, the upper end surface of the cover body made of a highly elastic material is flush with the upper end surface of the vertical portion of each edge member, so that the upper end surface of the cover body and the vertical portion of each edge member are By eliminating the step with the end face, the safety of passersby can be further enhanced.

  Furthermore, according to the present invention, the line-side end surface of the high-elastic material cover body and the line-side edge portion of the vertical portion of each edge member are interposed via the wedge-shaped direction change cover body made of the high-elastic material. The upper end of the vertical cover body made of a highly elastic material arranged in a continuous manner and these three members are joined to each other by heat welding. Therefore, the clearance of the line side end surface on the platform is perpendicular to the wedge-shaped direction change cover body. It is covered with a cover body. Therefore, the appearance is adjusted and the appearance is improved. Further, the thermal expansion and contraction of the cover body made of a highly elastic material in the width direction of the platform, that is, the thermal expansion and contraction in the longitudinal direction of the cover body itself is applied to the upper end portion of the vertical cover body via the wedge-shaped direction change cover body. Since the upper ends of the wedge-shaped direction change cover and the vertical cover body can be absorbed elastically, the wedge-type direction change cover body and the vertical cover body cover the clearance on the line side end surface of the platform and cover the platform. There is nothing.

  Further, according to the present invention, the surface of the wedge-shaped direction changing cover body is formed by an inclined surface that descends from the end surface on the track side of the cover body toward the upper end surface of the vertical cover body, and the inclined surface is formed in the vertical direction of each edge member. In the platform, the line side end surface of the vertical cover body is flush with or substantially flush with the line side end surface of the vertical portion of each edge member. The appearance of the track side end is further improved and the appearance is further improved.

  Furthermore, according to the present invention, both ends in the longitudinal direction of the vertical cover body are fitted to holding bodies fastened opposite to each other at the line side end portions of the vertical portions of the respective edge members. The displacement of the vertical cover body with respect to the vertical portion of each edge member, and hence both the vertical cover body with respect to the vertical portion of each edge member and the wedge-shaped direction changing cover body joined to the vertical cover body by thermal welding. Since the displacement is surely prevented, it is possible to maintain a good-looking form in which the vertical cover body and the wedge-shaped direction change cover body cover and cover the line-side end surface of the platform for a long period of time.

  Further, according to the present invention, since the high elastic material is constituted by a thermoplastic elastomer having a plurality of hollow portions penetrating in the longitudinal direction, a long material manufactured by extrusion molding is covered with the cover. These cover bodies can be easily manufactured by a simple operation of cutting according to the lengths of the body, the wedge-shaped direction changing cover body and the vertical cover body. Moreover, since each cover body can be easily combined and made continuous by on-site thermal welding, the workability at the site can be improved. Furthermore, by providing a plurality of hollow portions penetrating in the longitudinal direction, the amount of deformation of each cover body can be increased, and the elastic deformation followability of each cover body with respect to the relative displacement can be enhanced, and olefinic These elastomers have high mechanical strength and excellent durability, so that reliability is improved.

  Hereinafter, a preferred embodiment of a platform expansion joint cover according to the present invention will be described with reference to the drawings. 1 is a partial perspective view of a platform 20 to which an expansion joint cover 1 according to the present invention is applied, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG. In these figures, the platform 20 is composed of a concrete frame 22 whose surface is covered with one surface layer 21 made of asphalt or a tile whose upper surface is rough except for the end on the track side, asphalt or Through the clearance 10 that crosses the other casing 24 made of concrete, the surface of which is covered with the other surface layer 23 having a rough upper surface, in the width direction of the platform 20 (the direction of the arrow Y in FIG. 1). It is arranged adjacent to the longitudinal direction (in the direction of arrow X in FIG. 1), and the end of the one side of the housing 22 on the track side is covered with one surface layer body 21a made of a so-called capstone block made of precast concrete. The end of the other casing 24 on the track side is covered with the other surface layer 23a made of a precast concrete so-called capstone block. That.

  Thus, the platform 20 is arranged such that the housings 22 and 24 and the surface layer bodies 21, 21 a, 23, and 23 a are arranged adjacent to each other in the longitudinal direction (arrow X direction in FIG. 1) via the clearance 10. Direction in which each housing 22, 24 and each surface layer body 21, 21 a, 23, 23 a approach and separate from each other due to thermal expansion / contraction, deflection due to its own weight, displacement due to earthquake, or uneven settlement of the foundation (direction of arrow X in FIG. 1) ), The displacement components in the orthogonal three-axis directions in the direction orthogonal to the approaching and separating directions on the horizontal plane (the arrow Y direction in FIG. 1) and the direction perpendicular to the horizontal plane (the arrow Z direction in FIG. 1) are synthesized. Relative displacement that occurs as a movement in a different direction can be allowed. In addition, the clearance 10 is concealed and covered by the platform expansion joint cover 1 to ensure the safety of the passerby.

  The expansion joint cover 1 includes a pair of edge members 2 and 3 made of an L-shaped aluminum mold material, a cover body 4 made of a highly elastic material, and an aluminum receiving material 5.

  A pair of edge members 2 and 3 made of an L-shaped aluminum mold are used for the edge members 2A and 3A applied to the line side end of the platform 20 and the intermediate edge members 2B and 3B applied to other portions. The cross-sectional shape and the cross-sectional size of the edge material 2 made of one L-shaped aluminum mold material and the edge material 3 made of the other L-shaped aluminum mold material are set to be the same. Then, the upper end surface 2e of the vertical portion 2a of the one accessory edge material 2A is set to a level flush with the surface of the one surface layer 21a, and the upper end surface 3e of the vertical portion 3a of the other accessory edge material 3A is set to the same level. It is set to a level flush with the surface of the other surface layer 23a, extends in the width direction (arrow Y direction in FIG. 1) of the platform 20 within the clearance 10, and extends in the longitudinal direction (arrow X direction in FIG. 1). The upper end surface 2l of the vertical portion 2h of the one intermediate edge member 2B that is arranged continuously with the one accessory edge material 2A is set at a level flush with the surface of the one surface layer body 21 while facing each other. Within the clearance 10, the upper end surface 3 l of the vertical portion 3 h of the other intermediate edge member 3 </ b> B arranged continuously with the other accessory edge material 2 </ b> A is set at a level flush with the surface of the other surface layer body 23. Longitudinal direction extending in the width direction of the platform 20 (arrow Y direction in FIG. 1) And they are opposed to each other in (arrow X direction Figure 1).

  A horizontal portion 2b of one accessory edge material 2A, a horizontal portion 3b of the other accessory edge material 3A, a horizontal portion 2i of one intermediate edge material 2B, and a horizontal portion 3i of the other intermediate edge material 3B are each provided with a clearance 10 The horizontal portions 2 b and 2 i are fixed to one housing 22 through the anchor member 11, and the horizontal portions 3 b and 3 i are fixed to the other housing 24 through the anchor member 11. That is, the anchor member 11 is composed of an anchor plate 11A and an anchor 11B embedded in the casings 22 and 24, leaving the upper end portions. The anchor 11B is coupled to the anchor plate 11A by welding 12, and the anchor plate 11A By engaging a pair of downward locking pieces 13 provided in each of the horizontal portions 2b, 2i, 3b, 3i with a pair of upward locking pieces 11a provided on the upper surface, the horizontal portions 2b, 2i are The horizontal 3b and 3i are fixed to the other casing 24 via the anchor member 11 and fixed to one casing 22 via the anchor member 11.

  As shown in FIG. 1 and FIG. 4 (b), a crossing portion between the upper end surface 2e of the vertical portion 2a and the front end surface 2f of the vertical portion 2a in one accessory edge material 2A is cut out, and the front end from the upper end surface 2e. An inclined surface 2g inclined downward toward the surface 2f is formed, and as shown in FIGS. 1 and 3, the upper end surface 3e of the vertical portion 3a and the front end surface 3f of the vertical portion 3a in the other accessory edge material 3A. And an inclined surface 3g that is inclined at a downward gradient from the upper end surface 3e toward the distal end surface 3f is formed.

  As shown in FIGS. 3, 4 (a) and 4 (b), the other L-shape is formed on the upper edge portion of the vertical portion 2 a of the accessory edge material 2 A in the edge material 2 made of one L-shaped aluminum mold. A cover body locking groove 2c extending horizontally toward the vertical portion 3a of the accessory edge material 3A in the edge material 3 made of a shaped aluminum mold material is formed upward, and the cover body locking groove 2c has the cover below the cover body locking groove 2c. A receiving material support piece 2d extending horizontally toward the vertical portion 3a with a larger amount than that of the body locking groove 2c is formed in parallel to the cover body locking groove 2c. Further, as shown in FIG. 3, on the upper edge portion of the vertical portion 3 a of the accessory edge material 3 </ b> A in the other L-shaped aluminum-shaped edge material 3, one L-shaped aluminum-shaped edge material 2 is provided. A cover body locking groove 3c extending horizontally toward the vertical portion 2a of the accessory edge material 2A is formed upward, and the amount of the cover body locking groove 3c extending below the cover body locking groove 3c A receiving material support piece 3d extending horizontally toward the vertical portion 2a with a larger extension amount is formed in parallel to the cover body locking groove 3c. Accordingly, the cover body locking groove 2c formed in the vertical portion 2a of the one accessory edge material 2A and the cover body locking groove 3c formed in the vertical portion 3a of the other accessory edge material 3A are opposed to each other, The receiving material support piece 2d formed on the vertical portion 2a of the one accessory edge material 2A and the receiving material support piece 3d formed on the vertical portion 3a of the other accessory edge material 3A include the housings 22 and 24 and the surface layers. The bodies 21, 21 a, 23, 23 a face each other with an interval w allowing relative displacement in the direction of approaching each other.

  As shown in FIGS. 2, 4 (c), and (d), the upper edge of the vertical portion 2 h of the intermediate edge member 2 </ b> B in the edge member 2 made of one L-shaped aluminum mold is formed on the other L-shape. A cover body engaging groove 2j extending horizontally toward the vertical portion 3h of the intermediate edge material 3B in the edge member 3 made of aluminum mold material is formed upward, and the cover body engaging groove is provided below the cover body engaging groove 2j. A receiving material support piece 2k extending in the horizontal direction toward the vertical portion 3h with an extension amount larger than the extension amount of the stop groove 2j is formed in parallel to the cover body locking groove 2j. In addition, as shown in FIG. 2, the upper edge portion of the vertical portion 3h of the intermediate edge member 3B of the other edge member 3 made of L-shaped aluminum mold material is the same as the edge member 2 made of one L-shaped aluminum mold material. A cover body locking groove 3j extending horizontally toward the vertical portion 2h of the intermediate edge member 2B is formed upward, and below the cover body locking groove 3j, the amount of the cover body locking groove 3j extends. A receiving material support piece 3k extending horizontally toward the vertical portion 2h with a large amount of extension is formed in parallel to the cover body locking groove 3j. Accordingly, the cover body locking groove 2j formed in the vertical portion 2h of the one intermediate edge member 2B and the cover body locking groove 3j formed in the vertical portion 3h of the other intermediate edge material 3B face each other, and The receiving material support piece 2k formed on the vertical portion 2h of the intermediate edge member 2B and the receiving material support piece 3k formed on the vertical portion 3h of the other intermediate edge material 3B are each of the housings 22 and 24 and the surface layer bodies 21 and 21a. , 23a and 23a are opposed to each other with an interval w allowing relative displacement in a direction in which they are close to each other.

  The cover body 4 made of a highly elastic material shown in FIGS. 1, 2 and 3 is formed downward at both ends in the width direction of the cover body 4 itself corresponding to the longitudinal direction of the platform 20 (the arrow X direction in FIG. 1). A pair of the engaging portions 4a are engaged and straddled by the cover body engaging grooves 2c, 3c, 2j, 3j so as to cover and cover the clearance 10 from above. It is made of an elastomer.

  The central portion of the cover body 4 itself in the width direction and the pair of locking portions 4a include a plurality of hollows penetrating in the longitudinal direction of the cover body 4 itself corresponding to the width direction of the platform 20 (arrow Y direction in FIG. 1). 4b, the upper surface of the central portion is formed in a sawtooth shape, and the upper end surface thereof and the flat upper end surfaces of both end portions in the width direction of the cover body 4 itself are perpendicular to the edges 2A, 2B, 3A, 3B. The upper end surfaces 2e, 2l, 3e, 3l of the portions 2a, 2h, 3a, 3h are set flush with each other, the lower surface of the central portion is formed in a substantially serrated shape, and the lower end surfaces thereof are cover body locking grooves 2c, 3c, The aluminum receiving material 5 itself, which is placed on the upper surface of the aluminum receiving material 5 slightly below the lower surfaces of 2j and 3j and corresponds to the longitudinal direction of the platform 20 (in the direction of arrow X in FIG. 1). A pair of ribs formed downward at both ends in the width direction of the receiving member support piece 2d 3d, 2k, and is slidably supported on the upper surface of 3k.

  As shown in FIGS. 1 and 5, the line-side end surface of the cover body 4 made of an olefin-based thermoplastic elastomer is continuous with the upper end portion of the vertical cover body 7 via the wedge-shaped direction change cover body 6. The wedge-shaped direction changing cover body 6 and the vertical cover body 7 are each made of an olefin-based thermoplastic elastomer similar to the cover body 4, and their cross-sectional shape and cross-sectional size are set to be the same as those of the cover body 4. At the same time, the cover member 4, the wedge-shaped direction changing cover body 6 and the vertical cover body 7 are connected to each other by thermal welding. As a result, the wedge-shaped direction changing cover body 6 is disposed between the line-side corner portions of the vertical portions 2a and 3a of the accessory rim materials 2A and 2B, and the surface 6a is inclined surfaces 2g and 3g of the vertical portions 2a and 3a. And set to be the same.

As shown in FIGS. 1 and 6, the vertical cover body 7 has both end portions in the width direction including the pair of locking portions 4 a and flat upper end surfaces at both end portions in the width direction on the edge materials 2 </ b> A and 3 </ b> A. The ends of the vertical portions 2a and 3a are fitted to a holding body 8 made of a pair of stainless steel channels facing each other in a vertical posture and fastened with screws 8A, and the line-side end surface (front surface) 8a of the holding body 8 is set vertically. The end surfaces 2f and 3f of the portions 2a and 3a, that is, the line side end surfaces 2f and 3f are set flush with each other.
2 and 3, 9 indicates a mortar layer, 14 indicates a sealing material made of polysulfide or silicon, and 15 indicates an expansion joint made of an EPDM synthetic resin, which is narrower than the wide portion 10A of the clearance 10. It is supported by a boundary step with the part 10B and is kept watertight by a sealing material 16 made of polysulfide. Thereby, the water leak to the narrow part 10B can be prevented reliably.

  According to the expansion joint cover 1 having the above-described configuration, the relative displacement generated as an operation in the direction in which the displacement components in the orthogonal three-axis directions of the casings 22 and 24 and the surface layer bodies 21, 21a, 23, and 23a are combined is designed. If it is within the range of values, the cover body 4, the wedge-shaped direction change cover body 6 and the vertical cover body 7 which follow this relative displacement are elastically deformed. It is possible to hold the basic form of concealing and covering. Further, the cover body 4 made of a highly elastic material has a pair of locking portions 4 a at both ends in the longitudinal direction of the platform 20, that is, at both ends in the width direction of the cover body 4 itself. The vertical portions 2a, 3a, 2h, 3h of the materials 2, 3 are engaged and straddled by the cover body locking grooves 2c, 3c, 2j, 3j at the upper edge portions, and the lower side of the pair of edge materials 2, 3 Since it is supported by the aluminum receiving material 5 straddling the receiving material support pieces 2d, 3d, 2k, 3k, the cover body 4 made of a highly elastic material is the surface of each surface layer body 21, 21a, 23, 23a. It is possible to ensure the safety of passage by suppressing the protrusion from the metal, and higher than the metal tread 56a described in FIGS. 7A and 7B and the metal tread 101 described in FIGS. The elastic cover body 4 has a higher friction coefficient and better water repellency. What, reliability is improved safety is enhanced because it exhibits high anti-slip function. Furthermore, since the hardness of the cover body 4 made of a highly elastic material is higher than the hardness of the sealing material 57 described with reference to FIGS. 7A and 7B and has high elasticity, Deterioration damage due to external causes such as the tip of the pin heel can be suppressed, so durability is improved, reliability is improved, and sealing performance is also improved. Moreover, the cover body 4 made of a highly elastic material has a pair of locking portions 4a at both ends in the width direction, and a cover body locking groove 2c of a pair of edge members 2, 3 made of an L-shaped aluminum mold material from above. , 3c, 2j, 3j can be easily mounted by straddling between the upper edge portions of the vertical portions 2a, 2h, 3a, 3h by a simple operation of pushing and engaging with the cover body 4. The cover body 4 can be removed from the vertical portions 2a, 2h, 3a, by a simple operation of pulling upward both ends in the width direction of the cover body and pulling out the pair of locking portions 4a from the cover body locking grooves 2c, 3c, 2j, 3j. Since it can be easily removed from the upper edge of 3h, the attachment / detachment work becomes easy.

  The upper end surface of the central part formed in a sawtooth shape in the cover body 4 made of a highly elastic material and the flat upper end surfaces of both ends in the width direction of the cover body 4 itself are the vertical portions of the respective edge members 2A, 2B, 3A, 3B. Since the upper end surfaces 2e, 3e, 2l and 3l of 2a, 3a, 2h and 3h are set flush with each other, the upper end surface of the cover body 4 and the vertical portions 2a and 2h of the edge members 2A, 2B, 3A and 3B are set. 3a, 3h can be further improved in safety of passers-by by eliminating steps from the upper end surfaces 2e, 3e, 2l, 3l.

  Through the wedge-shaped direction change cover body 6 made of a highly elastic material, the end face on the line side of the cover body 6 made of the high elasticity material and the upper end portion of the vertical cover body 7 made of the high elasticity material are made continuous, and these three members Since the lines 4, 6, and 7 are coupled to each other by thermal welding, the clearance 10 on the line side end face of the platform 20 is covered and covered with the wedge-shaped direction changing cover body 6 and the vertical cover body 7. Therefore, the appearance is adjusted and the appearance is improved. Moreover, the thermal expansion and contraction of the cover body 4 made of a highly elastic material in the width direction of the platform 20 (the direction of the arrow Y in FIG. 1), that is, the thermal expansion and contraction in the longitudinal direction of the cover body 4 itself, It can be absorbed by acting on the upper end of the vertical cover body 7 and elastically deforming the upper ends of the wedge-shaped direction changing cover body 6 and the vertical cover body 7. That is, the thermal expansion of the cover body 4 indicated by the two-dot chain line in FIG. 5 is absorbed by the elastic deformation of the upper ends of the wedge-shaped direction changing cover body 6 and the vertical cover body 7 as indicated by the two-dot chain line, The thermal contraction of the cover body 4 shown is absorbed by elastic deformation of the upper ends of the wedge-shaped direction changing cover body 6 and the vertical cover body 7 as indicated by broken lines. Therefore, the form of covering and covering the clearance of the line side end surface on the platform by the wedge-shaped direction changing cover body 6 and the vertical cover body 7 by the thermal expansion and contraction of the cover body 4 made of a highly elastic material is not impaired.

  The surface 6a of the wedge-shaped direction change cover body 6 is formed by an inclined surface that descends from the end surface on the track side of the cover body 4 toward the upper end surface of the vertical cover body 7, and this inclined surface is the vertical portion of the accessory edges 2A and 2B. 2a and 3a are formed flush with the inclined surfaces 2g and 3g of the line-side corner portions, and the line-side end surfaces of the vertical cover body 7 are the tip surfaces 2f and 3f of the vertical portions 2a and 3a of the accessory edges 2A and 2B. By making them substantially flush with each other, the appearance of the track side end of the platform 20 is further improved and the appearance is further improved.

  The vertical cover body 7 has both ends in the width direction including the pair of locking portions 4a and flat upper end surfaces at both ends in the width direction perpendicular to the tips of the vertical portions 2a and 3a of the accessory edges 2A and 3A. The pair of locking portions 4a are fitted to the holding body 8 made of a pair of stainless steel channels fastened with screws 8A so as to face each other in the posture, so that the vertical portions 2a, 3a of the accessory edges 2A, 3A The vertical cover body 7 is displaced with respect to the vertical portions 2a and 3a of the accessory edge materials 2A and 3A, and the vertical cover body with respect to the vertical portions 2a and 3a of the accessory edge materials 2A and 3A. 7 and the wedge-shaped direction changing cover body 6 joined to the vertical cover body 7 by heat welding are reliably prevented. Therefore, it is possible to maintain a good-looking form in which the vertical cover body 7 and the wedge-shaped direction change cover body 6 cover and cover the clearance of the line side end surface of the platform 20 for a long period of time.

  Further, a plurality of hollow portions 4b are provided that penetrate the longitudinal direction of the cover body 4 made of high elastic material 4, the wedge-shaped direction changing cover body 6 made of high elastic material, and the vertical cover body 7 made of high elastic material. Since it is made of a thermoplastic elastomer, a simple work of cutting a long material manufactured by extrusion molding according to the length of each of the cover body 4, the wedge-shaped direction changing cover body 6 and the vertical cover body 7 is performed. Thus, these cover bodies 4, 6, and 7 can be easily manufactured. Moreover, since each cover body 4,6,7 can be easily combined and continued with each other by on-site heat welding, on-site workability can be improved, and a plurality of hollows penetrating in the longitudinal direction. By providing the portion 4b, the amount of deformation of each cover body 4, 6, 7 can be increased, and the elastic deformation followability of each cover body 4, 6, 7 with respect to the relative displacement can be improved. These elastomers have high mechanical strength and excellent durability, so that reliability is improved.

1 is a partial perspective view of a platform to which an embodiment of an expansion joint cover according to the present invention is applied. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is explanatory drawing of the edge material made from an L-shaped aluminum type | mold material, FIG. 4 (a) shows sectional drawing of one accessory edge material, FIG.4 (b) shows the side view of one accessory edge material, FIG. 4 (c) is a cross-sectional view of one intermediate edge member, and FIG. 4 (d) is a side view of one intermediate edge member. It is explanatory drawing which shows the behavior of a wedge-shaped direction change cover body and a vertical cover body accompanying the thermal expansion / contraction of the cover body made from a highly elastic material. It is CC sectional view taken on the line of FIG. It is explanatory drawing of a 1st prior art example, FIG. 7 (a) shows the partial top view of the platform to which the expansion joint cover was applied, FIG.7 (b) is the DD sectional expanded sectional view of Fig.7 (a). It is. It is explanatory drawing of a 2nd prior art example, and is front sectional drawing which expands and shows partially the platform to which the expansion joint cover was applied. It is explanatory drawing of a 2nd prior art example, and is a side view which shows the engagement state of the notch part of an engaging piece, and an engagement pin.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Expansion joint cover 2 Edge material made from one L-shaped aluminum 2A One edge material edge material 2B One intermediate edge material 2a Vertical part 2b Horizontal part 2c Cover body latching groove 2d Receiving material support piece 2e Vertical part Upper end surface 2B One intermediate edge member 2h Vertical portion 2i Horizontal portion 2j Cover body locking groove 2k Receiving material support piece 2l Upper end surface of vertical portion 3 Other edge member made of L-shaped aluminum mold 3A Other accessory edge member 3B Other intermediate edge material 3a Vertical portion 3b Horizontal portion 3c Cover body locking groove 3d Receiving material support piece 3e Upper end surface of vertical portion 3B One intermediate edge material 3h Vertical portion 3i Horizontal portion 3j Cover body locking groove 3k Receiving material Support piece 3l Upper end surface of vertical part 4 Cover body made of high elasticity material 4b Hollow part 5 Aluminum receiving material (receiving material)
6 Wedge-shaped direction change cover body 7 Vertical cover body 8 Holding body 10 Clearance 11 Anchor member 20 Platform 21 Tile (one surface layer body)
21a Kasaishi block (one surface layer)
22 One body 23 Tile (the other surface layer)
23a Kasaishi block (the other surface layer)
24 The other housing Y The direction approaching and separating from each other XY The direction perpendicular to Y in the horizontal plane Z The direction perpendicular to the horizontal plane w The interval between the receiving material support pieces

Claims (6)

One housing whose surface is covered with one surface layer body and the other housing whose surface is covered with the other surface layer body are adjacent to each other in the longitudinal direction through a clearance across the width direction. The surface layer body moves in the direction of approaching and separating from each other, the direction orthogonal to the approaching and separating direction on the horizontal plane, and the direction in which the displacement components in the three orthogonal directions perpendicular to the horizontal plane are combined. A platform expansion joint cover for concealing and covering the clearance of the platform allowing the relative displacement to occur,
A pair of L-shaped aluminum mold edges having vertical portions extending in the width direction within the clearance and facing each other in the longitudinal direction, and the longitudinal direction on the upper edges of the vertical portions of these edges A cover body made of a highly elastic material that covers and covers the both ends of the cover to cover the clearance, and a receiving material that supports the cover body by straddling each vertical portion below the cover body. Prepared,
The horizontal portion of the pair of edge members extends to a direction away from the clearance and is fixed to each of the casings separately via an anchor member,
The upper edge portion of each vertical portion extends to the position of each surface layer body, and the upper edge portion is formed with a cover body locking groove extending opposite to each other toward the other vertical portion, Below the cover body locking groove, there is an interval that is larger than the cover body locking groove and allows the housing and the surface layer to be relatively displaced in a direction close to each other. And receiving member support pieces extending opposite to each other toward the vertical part of the other side,
Both ends in the longitudinal direction of the receiving material are slidably supported on the upper surface of the receiving material support piece,
Both ends of the cover body in the longitudinal direction are engaged and supported in the cover body locking groove, and the central part is placed on the upper surface of the receiving material to conceal the clearance by the cover body. An expansion joint cover for a platform characterized by being covered. In the expansion joint cover for platforms according to claim 1,
An expansion joint cover for a platform, wherein an upper end surface of the cover body is flush with an upper end surface of a vertical portion of each edge member. In the expansion joint cover for platforms according to claim 1 or 2,
The end face on the line side of the cover body is connected to the line side of the vertical part of each edge member via a wedge-shaped direction change cover body made of a highly elastic material arranged between the line side corner parts of the vertical part of each edge member. It is continuous to the upper end of the vertical cover body made of a highly elastic material disposed between the edge portions, and the cover body, the wedge-shaped direction change cover body, and the vertical cover body are joined to each other by thermal welding. An expansion joint cover for platforms. In the expansion joint cover for platforms according to claim 3,
The surface of the wedge-shaped direction changing cover body is formed by an inclined surface that descends from the end face on the line side of the cover body toward the upper end face of the vertical cover body, and the line side corner at the upper edge of the vertical portion of each edge member The portion is formed flush with the surface of the wedge-shaped direction changing cover body, and the line side end face of the vertical cover body is flush with or substantially flush with the line side end face of the vertical portion of each edge member. Features an expansion joint cover for the platform. In the expansion joint cover for platforms according to claim 3,
Both ends of the vertical cover body in the longitudinal direction are fitted to a holding body fastened opposite to the line side end of the vertical portion of each edge member, and the platform expansion joint cover. In the expansion joint cover for a platform according to claim 1, claim 2, claim 3, claim 4 or claim 5,
The expansion joint cover for a platform, wherein the highly elastic material is formed of a thermoplastic elastomer having a plurality of hollow portions penetrating in the longitudinal direction.

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