JPS5841205Y2 - Dust cover - Google Patents

Description

[Detailed description of the invention] This invention relates to a dustproof cover used for a bridge girder support.

Usually, a bridge is provided with a bridge girder support part 13 that supports a bridge girder 12 at the upper end of a bridge pier 11, as shown in FIG.

This bridge girder support part 13 is connected to both bearings 15 via a shaft 14.
However, as they are always wet with rainwater and dust collects on them, they may rust prematurely and deteriorate in functionality.

This invention addresses the above-mentioned problems and provides a dustproof cover that protects bridge girder supports.

Hereinafter, the configuration of this invention will be explained based on an embodiment shown in the accompanying drawings.

This dustproof cover A, as shown in Figs. 2 and 3,
Bag portions 2 are sewn on both upper and lower edges in the longitudinal direction of a rectangular sheet body 1 made of waterproof synthetic fiber canvas or the like that wraps around the bridge girder support portion 13 in a cylindrical shape. A plurality of vertical leaf springs 4 are attached to the seat body 1 by means of patch cloths 5, each having a plurality of vertical leaf springs 4 inserted therethrough and applying elastic force in the upper and lower directions at required intervals in the lateral direction across the pair of bag portions 2, Further, on both the left and right ends of the sheet body 1, a hook and hook-and-loop fastener or other hanging device 6 is sewn on one end that serves as an overlap margin, and a loop-and-loop fastener or other hook that engages with this hook-and-loop fastener 6 is sewn on the other end. A tool 6' is sewn on.

The sheet body 1 is formed so that its length is slightly longer than the distance between the pier and the bridge girder to which it is attached, and overlap allowances are provided at both left and right ends so that it can be rolled up to form a cylindrical body when attached.

The hooks 6, 6' are sewn to the overlapped portion of the sheet body 1.

The bag portion 2 is formed by folding back the side edge of the sheet body 1 toward the surface that will be the back side during use.

The vertical leaf spring 4 has a curved shape that bends toward the front side of the seat body 1, and has a total length that is approximately the same as the distance between the pair of bag portions 2, and has both ends bent into a hook shape. is attached to the back of the

For the dustproof cover A, the size of the sheet body 1, the number of vertical leaf springs 4, etc. should be appropriately selected in accordance with the shape of the bridge girder support to which it is attached, the distance between the upper end surface of the pier and the lower end surface of the bridge girder, etc. Can be done.

The dustproof cover A according to this invention has the above-mentioned configuration, and when this is used, the bridge girder support part 13 located between the bridge pier 11 and the bridge girder 12 is It is preferable to roll it up to form a cylindrical shape, enclose it, engage and fasten the hanging tools 6 and 6', and further tie the fastening edge 3.

In addition, since the vertical plate spring 4 is somewhat longer than the distance between the bridge pier 11 and the bridge girder 12, it is necessary to bend it to some extent when it is attached.

Therefore, in the dustproof cover A, the upper bag portion 2 is in close contact with the lower end surface of the bridge girder 12, the lower bag portion 2 is in close contact with the upper end surface of the bridge pier 11, and the sheet body 1 has an overlapping allowance, so that the bridge girder support portion 13 is completely covered. came to be surrounded by

Incidentally, when repairing the bridge girder support section 13, etc., the dustproof cover A can be easily removed by untying the fastening edge 3 and releasing the fastenings of the hanging tools 6, 6'.

As mentioned above, the dustproof cover according to this invention is easy to attach to the bridge girder support part and completely surrounds this part, so it can completely protect it from the intrusion of rainwater and the adhesion of dust. This has the effect of greatly contributing to the prevention of rust in the bridge girder support parts.

[Brief explanation of the drawing]

FIG. 1 is a schematic view showing an embodiment of this invention in use, FIG. 2 is a detailed view of the main part of FIG. 1, and FIG. 3 is a perspective view of an embodiment of this invention. 1...Sheet body, 2...Bag portion, 3.
...Fascinating edge, 4 vertical leaf springs, 6.6'...
- Hanging tool, 11... Bridge pier, 12... Bridge girder, 13... Bridge girder support part.

Claims (1)

[Scope of utility model registration request] A bag portion is formed on the top and one side edges in the longitudinal direction of the oblong rectangular waterproof sheet body that wraps and surrounds the dustproof part in a cylindrical shape, and a fastening edge is inserted into this bag portion, and the pair of said bag portions is A plurality of vertical leaf springs are attached to the seat main body at required intervals, and the vertical leaf springs are provided with elastic force in the upward and downward directions. A dustproof cover characterized in that a hanging device such as a hook hook and loop fastener is attached, and a hanging device such as a loop hook and loop fastener that engages with the hook and loop fastener is attached to the other end.