JP6984238B2 - Stuffed structure for road bridge expansion and contraction device - Google Patents

Description

The present invention relates to a packing structure for a road bridge expansion / contraction device.

A road bridge is composed of, for example, a bridge pedestal arranged at both ends in the bridge axis direction and one or more decks arranged in the bridge axis direction between the bridge slabs as elements constituting the road bridge. There is.
The seam between the abutment and the deck and the seam between the decks are configured to include a road bridge telescopic device that absorbs the expansion and contraction of the deck due to the temperature difference in the season.
Road bridge telescopic devices are generally taken at the opposite ends of the elements that make up the road bridge, that is, at the ends of the abutment and the deck facing each other, or at the ends of the deck facing each other. It is provided with a pair of joint members that are worn and form a gap extending in a direction orthogonal to the bridge axis direction, and a water stop member that is arranged below the joint members and can expand and contract in the bridge axis direction (Patent Document 1). ).
In such a road bridge expansion / contraction device, an uneven gap extending in a direction orthogonal to the bridge axis direction is formed between a pair of joint members, so that the wheels of a two-wheeled vehicle may get stuck depending on the size of the gap. It is disadvantageous for smooth running of two-wheeled vehicles.
Therefore, there has been proposed a filling structure for a road bridge expansion / contraction device in which a part of the gap is closed by a filling member (Patent Document 2).

Japanese Unexamined Patent Publication No. 2008-57246 Japanese Unexamined Patent Publication No. 2015-71874

However, in the conventional filling structure for road bridge expansion / contraction devices, the filling member has a cylindrical shape with vertical axes, so when a small item such as a key or coin purse is dropped while the motorcycle is running, There was a problem that these small items entered the uneven gaps and were difficult to remove.
The present invention has been made in view of such circumstances, and an object of the present invention is to ensure smooth running of a two-wheeled vehicle and to allow small items to enter into uneven gaps of small items even if they are dropped. It is an object of the present invention to provide a padding structure for a road bridge telescopic device which is advantageous in preventing it.

In order to achieve the above object, the present invention comprises a pair of surface plates facing each other to form a seam of the road bridge together with opposing ends of elements constituting the road bridge, and the pair of tables. The face plate includes V-shaped convex portions and V-shaped concave portions alternately arranged in a direction intersecting the bridge axis direction, and the tip surface of the pair of surface plates is located at the tip of the V-shaped convex portion. It is located on the tip surface of the tip portion and the side portion of the V-shaped convex portion, and is located on the side portion tip surface located on the side portion of the V-shaped concave portion and the bottom end of the V-shaped concave portion. It has a bottom tip surface, and an uneven gap extending in a direction intersecting the bridge axis direction is formed between the tip surfaces of the pair of surface plates, and the uneven gap is closed so as to close a part of the uneven gap. It is a filling structure for a road bridge expansion / contraction device in which a filling member extending along an uneven gap is arranged. The filling member is formed of an elastic material and has a mesh shape, and the filling member is characterized in that the portion positioned at both ends of the bridge axis direction within the gap the tip portion distal end face of the pair of surface plates, is attached to the front SL side distal end surface and said bottom tip surface.
Further, in the present invention, the filling structure for the road bridge expansion / contraction device further includes a water stop member that can be expanded / contracted in the direction of the bridge axis and connects between the end portions facing each other below the surface plate, and the water stop. The member has a covering portion that is attached to the tip end surface of the surface plate and covers the tip end surface, the stuffing member is formed integrally with the covering portion, and the stuffing member intervenes in the covering portion. It is characterized in that it is attached to the tip end surface, the side tip surface, and the bottom tip surface of the pair of surface plates in a state of being made to stand.
Further, the present invention is characterized in that the water blocking member has a support portion that supports the portion of the filling member attached to the tip surface constituting the V-shaped recess from below. do.
Further, in the present invention, the padding member is configured by forming an elongated member into a mesh shape, and a cross section obtained by cutting the elongated member in a plane orthogonal to the longitudinal direction thereof is higher than the width. Is characterized by being large.
Further, the present invention is characterized in that the padding member is located at a position lower than the upper surface of the surface plate.

According to the present invention, the filling member closes a part of the uneven gap, which is advantageous for the two-wheeled vehicle to smoothly run on the pair of joint members.
In addition, when a small item such as a key or coin purse is dropped while the motorcycle is running, the small item stays on the mesh-like padding member, and therefore, it gets into the uneven gap and is difficult to take out. can.
In addition, when the dimensions of the uneven gap in the bridge axis direction change due to seasonal changes, the padding member has a mesh shape, so it is easy to expand and contract in the bridge axis direction due to its structure, and the durability of the padding member is durable. It is advantageous in increasing.
Further, according to the present invention, it is advantageous in reducing the cost of the padding structure for the road bridge expansion / contraction device.
Further, according to the present invention, the mounting strength of the padding member is ensured.
Further, according to the present invention, it is advantageous in ensuring the smooth running of the two-wheeled vehicle.
Further, according to the present invention, it is advantageous in preventing wear due to vehicle traveling.

It is a top view of the road bridge expansion / contraction device to which the packing structure for the road bridge expansion / contraction device of the embodiment is applied. FIG. 3 is a cross-sectional view taken along the line AA of FIG. It is an exploded perspective view of the road bridge expansion / contraction device to which the packing structure for the road bridge expansion / contraction device of the embodiment is applied. It is an enlarged sectional view which shows the structure of the stuffing member, the surface plate, and a water stop member. .. It is a B arrow view of FIG. FIG. 5 is a cross-sectional view taken along the line CC of FIG.

Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 2, a road bridge is configured by arranging a large number of decks 2 supported by bridge pedestals in the direction of the bridge axis, and the seams 4 of the decks 2 are the ends of the decks 2 facing each other. It is configured to include a section and a road bridge expansion / contraction device 10.
As shown in FIGS. 1 and 2, the road bridge expansion / contraction device 10 includes a pair of joint members 14, a water blocking member 16, and a filling member 32.

As shown in FIG. 2, the pair of joint members 14 are attached to the end portions of the opposing decks 2, and move in the bridge axis direction integrally with the deck 2 according to the expansion and contraction of the deck 2 in the bridge axis direction. do.
The joint member 14 includes a surface plate 20, a side plate 22, and an anchor member 24, and the surface plate 20 and the side plate 22 are integrally formed of a steel material.
The surface plates 20 of the pair of joint members 14 are arranged so that the uneven tip surfaces 2006 mesh with each other with a gap S between the ends of the floor slabs 2 facing each other.

As shown in FIG. 2, the surface plate 20 extends in a direction orthogonal to the bridge axis direction and forms the same surface as the upper surface (upper surface of the road bridge) of the bridge surface pavement 3 formed on the upper surface of the deck 2. It has an upper surface 2002, a lower surface 2004 located opposite to the upper surface 2002, and an uneven tip surface 2006.
More specifically, as shown in FIG. 1, the surface plate 20 alternately has a substrate portion 26 extending in a direction orthogonal to the bridge axis and a portion where the substrate portions 26 face each other in a direction orthogonal to the bridge axis. It includes an arranged V-shaped convex portion 28 and a V-shaped concave portion 30.
Therefore, the uneven tip surface 2006 is located on the side of the tip end surface 2006A located at the tip of the V-shaped convex portion 28 and the side portion of the V-shaped convex portion 28, and is also on the side of the V-shaped concave portion 30. It has a side tip surface 2006B located at the portion and a bottom tip surface 2006C located at the bottom end of the V-shaped recess 30.
As shown in FIG. 1, the V-shaped convex portion 28 and the V-shaped concave portion 30 of the surface plate 20 of one joint member 14 are the V-shaped concave portion 30 and the V-shaped concave portion 30 of the surface plate 20 of the other joint member 14. The convex portion 28 is provided so as to mesh with a gap S, and the dimension of the gap S in the bridge axis direction increases or decreases according to the expansion and contraction of the deck 2 in the bridge axis direction.

As shown in FIG. 2, the side plate 22 is bent downward from the base end opposite to the tip surface 2006 of the surface plate 20, the side plate 22 extends over the entire length of the surface plate 20 in the length direction, and the lower end of the side plate 22. Is placed on the bottom surface of the recess 2A at the end of the deck 2.
The side plate 22 has an inner surface 2202 located on the gap S side and an outer surface 2204 located on the opposite side, and an anchor member 24 is provided on the outer surface 2204.
Post-casting concrete 13 is placed between the outer surface 2204 and the recess 2A, and the joint member 14 is fixed to the end of the deck 2 via the anchor member 24 and the post-casting concrete 13.

The water stop member 16 prevents rainwater from flowing downward from the gap S when it rains, and as shown in FIG. 3, the water stop member 16 has a width along the bridge axis direction. is doing.
The water blocking member 16 is arranged below the joint member 14, extends in a direction orthogonal to the bridge axis direction, is elastically deformable in the bridge axis direction, and is made of a conventionally known elastic material. As such an elastic material, various conventionally known rubbers such as CR rubber (chloroprene rubber) can be used.
As shown in FIG. 2, the water blocking member 16 includes a pair of base portions 1602 and a bellows portion 1604.
In addition, in FIG. 3, in order to clarify the water blocking member 16, the filling member 32 is not shown.

The pair of bases 1602 are located at both ends of the water blocking member 16 in the width direction, and the outer surfaces of the pair of bases 1602 are attached to the inner surfaces 2202 of the corresponding side plates 22 by vulcanization adhesion.
As shown in FIG. 3, above the pair of bases 1602, the substrate portion 26 of the surface plate 20, the V-shaped convex portion 28, the substrate portion 1602A corresponding to the V-shaped concave portion 30, and the V-shaped convex portion 1602B. A V-shaped recess 1602C is provided, and the V-shaped recess 1602C is composed of two adjacent V-shaped convex portions 1602B side portions and an end portion of a substrate portion 1602A located between them.
The upper surface of the substrate portion 1602A of the base portion 1602 and the upper surface of the V-shaped convex portion 1602B are attached to the lower surface of the substrate portion 26 of the surface plate 20 and the lower surface of the V-shaped convex portion 28 by vulcanization adhesion.
The width of the substrate portion 1602A in the bridge axis direction is formed to be larger than the width of the substrate portion 26 of the surface plate 20, and the upper surface of the substrate portion 1602A on the V-shaped recess 1602C side is V-shaped of the surface plate 20. It protrudes to the bottom of the recess 30.
As shown in FIG. 3, a covering portion 1610 covering the uneven tip surface 2006 of the surface plate 20 is further erected from the upper surface of the substrate portion 1602A of the base portion 1602 and the upper surface of the V-shaped convex portion 1602B.
The covering portion 1610 has a tip covering portion 1610A that covers the tip tip surface 2006A, a side covering portion 1610B that covers the side tip surface 2006B, and a bottom covering portion 1610C that covers the bottom tip surface 2006C.
These covering portions are attached to the front end surface 2006A, the side front end surface 2006B, and the bottom front end surface 2006C by vulcanization adhesion.
A groove portion 1620 into which the flange 2402 (see FIG. 2) of the anchor member 24 is inserted is formed from the substrate portion 26 to the V-shaped convex portion 28.
As shown in FIG. 2, the bellows portion 1604 connects a pair of base portions 1602.
The bellows portion 1604 absorbs a change in the dimensions of the concave-convex gap S in the bridge axis direction. The structure is arbitrary, such as the formation of convex portions protruding upward alternately.

The stuffing member 32 is arranged in the uneven gap S and closes a part of the uneven gap S to ensure smooth running of the two-wheeled vehicle.
The padding member 32 has a mesh shape, and both ends of the padding member 32 in the bridge axial direction are connected to the covering portion 1610. In the present embodiment, the padding member 32 and the water blocking member 16 are integrally molded. , Cost reduction is being planned.
For the packing member 32, a conventionally known elastic material that does not cause large deformation when a load of a two-wheeled vehicle is applied is used, and various conventionally known rubbers such as CR rubber (chloroprene rubber) are used as in the water blocking member 16. It is possible.
In the present embodiment, as shown in FIGS. 4 and 5, the slender member 34 is formed into a mesh shape to form the padding member 32, and the slender member 34 is formed in a plane orthogonal to the longitudinal direction thereof. The cut cross section is formed in a size that does not cause a large deformation when a load of a two-wheeled vehicle is applied, and in detail, as shown in FIG. 6, a predetermined width W and a predetermined size larger than the width W are specified. It is formed at a height H to ensure smooth running of the two-wheeled vehicle.

Further, as shown in FIG. 5, the end portion 3402 of the elongated member 34 constituting the filling member 32 and connected to the covering portion 1610 is formed with a slightly larger contour than the other portions, and the filling member 32 is formed. The mounting strength is ensured and the durability is improved.
Further, the mesh is formed in a size that prevents small items from falling, and at the same time, is formed in a size that rainwater or snow falls below the stuffing member 32 when it rains or snows.
Further, as shown in FIG. 4, the filling member 32 is located at a position lower than the upper surface 2002 of the surface plate 20, and is designed so that wear does not occur as the vehicle travels.
Further, the portion of the filling member 32 located at the bottom of the V-shaped recess 30 of the surface plate 20 is the upper surface (support) of the substrate portion 1602A of the water blocking member 16 protruding from the bottom of the V-shaped recess 30 of the surface plate 20. Part) When mounted on 1602D and the load of the two-wheeled vehicle acts on the packing member 32, the end of the filling member 32 is supported by the base of the water blocking member 16 so as to secure the mounting strength of the filling member 32. I have to.

Therefore, according to the present embodiment, the filling member 32 closes a part of the uneven gap S, which is advantageous for the motorcycle to smoothly run on the pair of joint members 14.
Further, since the padding member 32 has a mesh-like shape and is provided in the uneven gap S, when a small item such as a key or a coin purse is dropped while the motorcycle is running, those small items are the mesh-like padding member. Therefore, it is possible to solve the problem that it stays on the 32 and therefore enters the uneven gap S and is difficult to take out.
Further, since the stuffing member 32 has a mesh shape, rainwater or snow falls below the stuffing member 32 when it rains or snows.
Therefore, when it rains or snows, rainwater and snow are less likely to collect on the filling member 32, which is advantageous for the vehicle to smoothly run on the pair of joint members 14.
Further, when the dimension of the uneven gap S in the bridge axis direction changes due to a change in the season, the padding member 32 has a mesh shape, so that it easily expands and contracts in the bridge axis direction due to its structure, and the padding member 32 It is advantageous in increasing the durability of the bridge.

In the present embodiment, the case where the padding member 32 and the water blocking member 16 including the covering portion 1610 are integrally formed will be described, but the padding member 32 and the water blocking member 16 are separate members. When the water blocking member 16 does not have the covering portion 1610, both ends of the filling member 32 in the bridge axis direction are attached to the uneven tip surface 2006 by vulture adhesion, an adhesive, or a bolt. Alternatively, when the water blocking member 16 has the covering portion 1610, both ends of the packing member 32 in the longitudinal direction may be attached to the covering portion 1610 by vulture adhesion or an adhesive. Of course.

4 Seam 10 Road bridge expansion and contraction device 14 Joint member 16 Water stop member 1602C V-shaped recess 1602D Top surface (support part)
1610 Cover 20 Surface plate 2006 Tip surface 30 V-shaped recess 32 Filling member 34 Elongated member S Gap

Claims (5)

A seam portion of the road bridge is formed together with the facing ends of the elements constituting the road bridge having a pair of surface plates facing each other.
The pair of surface plates includes V-shaped convex portions and V-shaped concave portions alternately arranged in a direction intersecting the bridge axis direction.
The tip surfaces of the pair of surface plates are located on the tip surface of the tip portion located at the tip of the V-shaped convex portion and the side portion of the V-shaped convex portion, and the side portion of the V-shaped concave portion. It has a side tip surface located at the bottom and a bottom tip surface located at the bottom end of the V-shaped recess.
An uneven gap extending in the direction intersecting the bridge axis direction is formed between the tip surfaces of the pair of surface plates.
It is a filling structure for a road bridge expansion / contraction device in which a filling member extending along the uneven gap is arranged so as to close a part of the uneven gap.
The padding member is formed of an elastic material and has a mesh shape.
During said filling member, the portion positioned at both ends of the bridge axis direction within the gap the tip portion distal end face of the pair of surface plates, is attached to the front SL side distal end surface and said bottom tip surface,
A stuffing structure for road bridge expansion and contraction devices. The road bridge expansion / contraction structure for a road bridge expansion / contraction device further includes a water blocking member that can be expanded / contracted in the direction of the bridge axis and connects between the end portions facing each other below the surface plate.
The water blocking member has a covering portion that is attached to the tip surface of the surface plate and covers the tip surface.
The padding member is formed integrally with the covering portion, and is formed integrally with the covering portion .
The padding member is attached to the tip end surface, the side tip surface, and the bottom tip surface of the pair of surface plates with the covering portion interposed therebetween.
The interstitial structure for a road bridge expansion / contraction device according to claim 1, wherein the structure is characterized by the above. The water stop member has a support portion that supports the portion of the padding member attached to the tip surface constituting the V-shaped recess from below.
The interstitial structure for a road bridge expansion / contraction device according to claim 2, wherein the structure is characterized by the above. The padding member is formed by forming an elongated member into a mesh shape.
A cross section obtained by cutting the elongated member in a plane orthogonal to the longitudinal direction thereof has a height larger than a width.
The packed structure for a road bridge expansion / contraction device according to any one of claims 1 to 3, wherein the structure is characterized by the above. The filling member is located at a position lower than the upper surface of the surface plate.
The packed structure for a road bridge expansion / contraction device according to any one of claims 1 to 4, wherein the structure is characterized by the above.

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