JP2005036537A - Silencer of side ditch block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a silencer of a side ditch lid without causing a horizontal shift of a lid plate by controlling positions of a side ditch block and the lid plate. <P>SOLUTION: The silencer intervened between the lid hook section 1a and the lid plate 2 is so constituted that a recess section 1b along the longitudinal direction of a side ditch block body 1 is provided on a lid hook section 1a of both inside edges of the side ditch block body 1, engaging holes 1c and 2a are bored in both sides of the lid plate 2 mounted on the recess section 1b and the lid hook section 1a, a shock absorbing material 3 having elasticity connecting projections 3b and 3c fitted to the engaging holes 1c and 2a to both up and down sides of a plate-like base section 3a is fitted to the recess section 1b forming the base section 3a in the side ditch block body 1 and that both up and down projections 3b and 3c are respectively fitted to the engaging holes 2a and 1c bored in the lid plate 2 and the side ditch block body 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a silencer for a side groove block for reducing rattling and noise generated between the side groove block and a lid when the vehicle passes.

  Conventionally, the cover plate is placed directly on the side groove block main body so as to close the upper opening of the side groove block. However, due to the effects of the accuracy of the lid receiving part of the side groove block, the precision of the lid plate, and the inclusions between the lid receiving part and the lid plate, there is a rattling between them, and a significant noise is generated when passing through the vehicle In addition, there is a problem that adjacent cover plates rub against each other, and corners are chipped or damaged.

  Japanese Utility Model Publication No. 59-144083 (Patent Document 1) discloses that the grating lid is tightened with a bolt to eliminate rattling.

  In Japanese Patent Laid-Open No. 2000-265535 (Patent Document 2), a convex curved surface or a convex curved surface is provided on both lower sides of the lid plate, and a concave curved surface or a concave curved surface is provided on the lid receiving portion of the main body. In the muffler side groove block that supports the lower side of both sides so as to adhere to or bite into the lid receiving part of the main body to prevent rattling of the lid plate, the outer surface from the castle side of the side wall to the lower side is formed on a single vertical plane without unevenness, A ridge extending in parallel with the water channel is provided at the opposite position of the inner surface of each side wall of the main body, and a lid receiving portion for supporting the lid plate is provided on the upper surface of the ridge, and the lower surface of the ridge is inclined downward. A muffled side groove block as a surface is disclosed.

  In Japanese Utility Model Laid-Open No. 55-44867 (Patent Document 3), as a shock absorber for a cover plate, a rubber packing is fixed to a stepped portion of a cover hanging portion of a side groove body by an anchor or an adhesive, and the cover plate itself. It is disclosed that a rubber packing for cushioning is bonded to the surface.

  In addition, in Japanese Utility Model Publication No. 1-18709 (Patent Document 4) previously disclosed by the present applicant, the lid portion on both inner edges of the side groove main body is placed under the lid plate along the longitudinal direction of the side groove main body. A silencing structure for a side groove cover is described in which a recess for placing a cushion rubber to be laid is formed, and a protrusion that projects an interval between adjacent cover plates is provided on the cushion rubber.

  Furthermore, Japanese Patent Laid-Open No. 9-78676 (Patent Document 5) discloses a U-shaped block in which a synthetic rubber cushioning material having elasticity is provided on one of the contact surface of the side groove block main body and the lid. . As the cushioning material, a shape having a head portion and a trunk portion, a cylindrical shape, a U-shaped cross-sectional shape, and a ring shape are disclosed.

Japanese Utility Model Publication No.59-144083 JP 2000-265535 A Japanese Utility Model Publication No. 55-44867 Japanese Utility Model Publication No. 1-18709 JP-A-9-78676

  In the structure described in the above-mentioned Patent Document 1 in which the lid is tightened with bolts, there is a problem that the tightening work is complicated and the construction period is long.

  In the structure of the silencer side groove block described in Patent Document 2, accuracy is required for the block main body and the cover plate, and if there are inclusions between them, a predetermined effect cannot be obtained.

  In the silencing structure of the side groove cover described in Patent Document 3, when the rubber packing is fixed to the side groove body or the cover plate, the work of removing the rubber packing from the side groove body or the cover plate becomes complicated when the rubber packing deteriorates, and the new The work of fixing the rubber packing is also necessary, and the replacement work takes time.

  In the silencing structure of the side groove lid described in Patent Document 4, the adjacent lid plates are separated from each other by protrusions, but the lateral displacement of the lid plate cannot be regulated, so that sound is generated due to the lateral displacement of the side groove body and the lid plate. There is a problem of rubbing and rubbing.

  In the U-shaped block described in Patent Document 5, since a cushioning material having an elastic force is provided only on one of the block main body and the contact surface of the lid, the position of the lid is shifted when a strong force is applied. In particular, when it is installed in a slope or other place where there is a slope on the road, there is a problem that the positions of the lids are shifted due to gravity and the lids collide with each other.

  An object of the present invention is to provide a silencing device for a side groove lid that can regulate the positions of the side groove block and the lid plate and does not cause lateral displacement of the lid plate.

In order to solve the above-mentioned problems, a silencing device for a side groove block according to the present invention is provided with a concave portion along the longitudinal direction of the side groove block main body at the lid hanging portions on both inner edges of the side groove block main body. The base portion is provided with an elastic cushioning material in which an engagement hole is provided in each of the relative surfaces of the lid plate placed on the portion, and protrusions fitted into the engagement holes are continuously provided on the upper and lower surfaces of the flat plate-like base portion. The upper and lower protrusions are interposed between the lid plate and the lid plate so that the upper and lower projections are fitted into the engagement holes provided in the lid plate and the side groove block body, respectively, so as to fit into the recesses formed in the side groove block body. It was made to be characterized.
Here, an elastic material having weather resistance and durability such as silicon rubber is used as the buffer material.
It is preferable that the shape of the engagement hole and the protrusion is a frustoconical shape.

  In the present invention, the cushioning material is made of an elastic material and has a flat base portion and upper and lower protrusions, so that the base portion is fitted in the recess and the engagement hole formed in the lid portion of the side groove block main body. The cover plate is positioned in both the longitudinal direction of the gutter block body and in the lateral direction perpendicular to it by placing the engagement holes in the cover plate so that it fits into the protrusion protruding above the base. This eliminates the occurrence of noise even when a vehicle passes over the vehicle, and the fact that the cover plate rubs against the side groove block main body due to the slippage.

  By making the shape of the engagement hole and the protrusion into a frustoconical shape, it is possible to secure a clearance at the time of fitting and to have an effect of being positioned at an accurate position after mounting.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is an exploded perspective view showing a silencing device for a side groove block according to an embodiment of the present invention, FIG. 2 is a sectional view of a waist portion, and FIG. 3 is a perspective view showing an example of a cushioning material.

  In the present embodiment, recesses 1b are formed at predetermined intervals along the longitudinal direction in the lid hooking portions 1a on both inner edges of the side groove block main body 1, and an engagement hole 1c is further provided in the recess 1b. An engagement hole 2 a is formed on the bottom surface of the cover plate 2 at a position corresponding to the engagement hole 1 c of the side groove block main body 1.

On the other hand, the cushioning material 3 formed of an elastic material having weather resistance and durability, such as silicon rubber, has a flat plate-like base portion 3a and protrusions 3b and 3c connected to the upper and lower surfaces of the base portion 3a. Yes.
The shapes of the protrusions 3b and 3c and the engagement holes 1c and 2a are frustoconical. The shape of the base 3a can be a square as shown in FIG. 3A and a circle as shown in FIG. 3B, but is not limited to these shapes.

In the silencer configured as described above, the gutter block body 1 is first installed on the site, and the cushioning material 3 is set so that the protrusion 3c fits into the engagement hole 1c. Thereby, the base 3a of the cushioning material 3 is easily attached to the recess 1b.
Next, the lid plate 2 is set so that the engagement hole 2a is aligned with the protrusion 3b protruding from the upper surface of the lid hanging portion 1a. Thereby, as shown in FIG. 2, the base 3a is positioned in the recess 1b, and the protrusions are fitted in the fitting holes 1c and 2a.

  As a matter of course, since the thickness of the base 3a is formed slightly thicker than the depth of the recess 1b, even if the vehicle passes over the cover plate 2, the cover plate 2 and the side groove block main body 1 may be in direct contact with each other. There is no noise. Further, since the projections 3b and 3c are engaged with the engagement holes 1c and 2a, the lid plate 2 is restricted from being displaced in the longitudinal direction and the lateral direction of the side groove block main body 1, and the horizontal direction The cover plate 2 is not displaced due to force. Even if the gutter block main body is installed on a slope or the like, the lid plates are gradually displaced due to gravity, and the lid plates originally secured with a gap do not come into close contact with each other and rub against each other.

  INDUSTRIAL APPLICABILITY The present invention can be used as a silencer for a side groove block that eliminates rattling, noise, and misalignment that occurs between the side groove block and the lid when passing through the vehicle.

It is a disassembled perspective view which shows the silencer of the side groove block which concerns on embodiment of this invention. It is principal part sectional drawing of the silencer of the side groove block which concerns on embodiment of this invention. It is a perspective view which shows the example of the shock absorbing material in the silencer of the side groove block which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side groove block main body 1a Covering part 1b Recessed part 1c Engagement hole 2 Lid board 2a Engagement hole 3 Buffer material 3a Base part 3b, 3c Protrusion

Claims (2)

  A concave portion is provided along the longitudinal direction of the side groove block main body at the lid hanging portions on both inner edges of the side groove block main body, and an engagement hole is formed on each of the relative surfaces of the concave plate and the lid plate placed on the lid hanging portion. An elastic cushioning material in which protrusions that fit into the engagement holes are provided continuously on the upper and lower surfaces of the flat plate-like base portion so that the base portion fits into the recesses formed in the side groove block body. A silencing device for a side groove block, wherein the projection is inserted between an engagement hole provided in the lid plate and the side groove block main body, and is interposed between the lid hooking portion and the lid plate.   The silencing device for a side groove block according to claim 1, wherein the shape of the engagement hole and the protrusion is a frustoconical shape.

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