JPH0118709Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for reducing rattling and noise generated between a side gutter and a cover plate when a vehicle passes by.

[Conventional technology]

Conventionally, a cover plate was placed directly on the U-shaped gutter body to close the upper opening of the gutter body, but in this case, significant noise was generated when vehicles passed by, and the cover plates rubbed against each other. There was a problem that the edges would not fit properly and the corners would be chipped or damaged.

Japanese Utility Model Publication No. 59-144083 describes that the grating cover is tightened with bolts to eliminate rattling. However, this tightening work is complicated and takes a long time.

Japanese Utility Model Application Publication No. 55-44867 discloses that as a shock absorbing device for the cover plate, a rubber gasket is fixed to the stepped part of the cover hook of the gutter body using an anchor or adhesive, and a rubber gasket for cushioning is bonded to the cover plate itself. It is stated that

[Problems that the invention aims to solve] However, if the rubber gasket is fixed to the gutter body or cover plate, when the rubber gasket deteriorates, the work of removing the rubber gasket from the gutter body or cover plate becomes complicated, and the work of fixing a new rubber gasket becomes complicated. is also required, and the replacement work is time-consuming.

Additionally, if multiple cover plates are dropped into the same opening in the gutter body, the rubber gaskets do not separate adjacent cover plates, so the cover plates may rub against each other, causing chips or damage to corners. There was a problem.

This invention solves these conventional problems and
The purpose is to reduce noise pollution, facilitate the replacement of rubber gaskets, and prevent damage to the cover plates due to rubbing between adjacent cover plates.

[Means for solving problems]

In order to achieve this purpose, the sound-absorbing structure of the gutter cover of the present invention has a concave part formed in the cover hook part on both inner edges of the gutter body along the longitudinal direction of the gutter body, in which the cushion rubber placed under the cover plate is placed. Further, the cushion rubber is characterized in that a protrusion is provided on the cushion rubber so as to separate the adjacent cover plates from each other.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

Figure 1 shows a culvert gutter having a sound-absorbing structure according to the present invention, in which a is a plan view, b is a front view, and c is a front view.
is a sectional view taken along the - line of a. As shown in these drawings, a recess 1b for fixing a rubber cushion is formed on the upper surface of the lid hook 1a of the side gutter body 1.

FIG. 2 is a perspective view showing an embodiment of the rubber cushion 2, in which a protrusion 2a is provided in the center to prevent adjacent lid plates from coming into contact with each other.

FIG. 3 is an enlarged view showing the installed state of the rubber cushion 2, and a corner of the cover plate 3 is provided with a notch 3a into which the protrusion 2a of the rubber cushion 2 is inserted.

In this way, the cover plate 3 is supported with a cushioning effect by the rubber cushion 2 placed in the recess 1b formed in the gutter body 1.

[Effect of idea]

As described above, according to the present invention, since the rubber cushion is interposed between the gutter main body and the cover plate, it is possible to reduce noise when a vehicle passes by, and by providing the protrusion on the rubber cushion, the cover plates can be easily connected to each other. There is no rubbing against each other, and corner chipping and damage can be prevented. Further, the protrusions provided on the rubber cushion are received by the ends of the cover plate when the rubber cushion tries to separate from the recess provided in the side gutter body due to a moving force, so that it has the effect of preventing the rubber cushion from separating.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of a culvert gutter according to the present invention, FIG. 2 is a perspective view of a rubber cushion, and FIG. 3 is an enlarged sectional view of the main part. 1: Gutter main body, 1a: Lid part, 1b: Recessed part, 2: Rubber cushion, 2a: Projection, 3: Lid plate, 3a: Notch part.

Claims (1)

[Scope of utility model registration request] A concave portion is formed in the lid hook portion on both inner edges of the side gutter body along the longitudinal direction of the side gutter body, in which a cushion rubber placed under the cover plate is fixed, and a protrusion is formed in the cushion rubber to separate the interval between adjacent cover plates. A sound-muffling structure for a gutter cover characterized by a protruding structure.