JP3809927B2 - Noise prevention and flip-up prevention device in side groove with lid plate - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a side groove cover noise prevention and flip-up prevention device in a concrete side plate with a cover plate, and more specifically, it is caused by running of the vehicle due to "rattle" between the side groove body and the cover plate. The present invention relates to a technique for preventing noise and a jumping phenomenon associated with traveling of a vehicle.
[0002]
[Prior art]
Conventional noise prevention technique in groove with a lid, a round 1 No. 2,514,918 and JP-round 2 Hei 9-158303, JP-round 3 Registered Utility Model No. 3031035 discloses, round 4 Registered Utility Model No. 3040584 discloses There are various technologies described in.
[0003]
[Problems to be solved by the invention]
The conventional technique described in the above-mentioned prior art No. 2514918 has a structure in which the side groove and the cover plate are brought into contact with each other over a wide area, and therefore, deformation due to an error in the manufacturing process or subsequent distortion occurs, in particular, twisting. In this case, the left and right support surfaces are in a three-point support state and a gap is created at least in one place.If a load is applied to the gap from above, the lid plate tilts and generates noise. In the case of a load due to a vehicle, the lid plate is flipped up, which is extremely dangerous, and not only a high-precision molding technique is required, but also a manufacturing cost is extremely high.
[0004]
Although the technique described in the above-mentioned Maru 2 Japanese Patent Laid-Open No. 9-158303 has a soundproof spacer interposed between the side groove main body and the cover plate, the noise can be reduced by the buffering action of the soundproof spacer. In the manufacturing process or in the subsequent deformation due to distortion, particularly the twist, the lid plate is likely to be flipped up by the vehicle load, as is the case with the circle 1 in the prior art.
[0005]
Both of the techniques described in the above-mentioned Maru 3 registered utility model No. 3031035 and Maru 4 registered utility model No. 3040584 are supported by a line contact portion by contact between the curved surface and the curved surface. As in the case of both prior arts, when deformation due to an error in the manufacturing process or subsequent distortion occurs, particularly torsion, the left and right support surfaces are in a three-point support state and a gap is generated in at least one place. When a vehicle load is applied to the gap, the lid plate tilts and generates noise, and the lid plate is not only easily flipped up, but also requires high-precision molding technology, and the manufacturing cost is extremely high. There is.
[0006]
In addition, both of these technologies adopt a stopper structure having a minute gap below the line contact portion as a measure for preventing the flipping phenomenon of the cover plate, and prevent the jumping by the collision in the stopper structure. Such a small stopper has a practically low effect, and there is a risk that the stopper structure may be broken due to repeated abutting, so that it is necessary to provide a reinforcing member on the opposing surface portion.
[0007]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a technology for preventing noise and splashing of a structure that avoids the above-mentioned drawbacks of the prior art, disperses the load at the contact portion, and at the same time maintains a stable engagement relationship of the cover plate. is there.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides an engaging portion between a receiving groove having a cross-section that gradually expands upward and a protrusion that loosely fits in the receiving groove, and the right and left sides of the lid receiving step and the lid plate of the side groove body. In addition to providing parallel to the contact part, select an appropriate amount of fluid filler such as epoxy resin, unsaturated polyester resin, plastic concrete, etc. for the gap volume caused by the fitting between the receiving groove and the protrusion. or the by the protrusion of the cover plate after placement in the receiving groove and Kanmuri設as fillers in receiving groove is spread, so as to use waiting for hardening of the filler, and the receiving groove and ridge As for the cross-sectional shape of the engaging portion, at least one of them is a substantially semicircular shape, and the other that is not a semicircular cross-sectional shape is a trapezoid .
[0009]
According to the above configuration, in the case where the right and left contact planes of the side groove and the cover plate are in close contact with each other, the filler in the gap in the engaging portion composed of the receiving groove and the protrusion is the fluidity of the filler. Then, after spreading in the gap, it hardens and the lid plate is prevented from moving in the horizontal direction and is stably fixed. In addition, when the left and right contact planes of the side groove and the cover plate do not coincide with each other and a gap is partially formed between the contact planes, the filler in the engaging portion is contacted between the side groove and the cover plate. It flows into the gap between the surfaces and hardens, and the floating of the lid plate is prevented and a stable stationary state is obtained.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.
[0011]
As concrete products to which the present invention is applied, for example, as shown in FIG. 1 and FIG. A model composed of a drop lid type lid plate 3 placed on the stage 1 is adopted.
[0012]
As a special configuration of the present invention for the above-mentioned type, a receiving groove 4 having an inverted trapezoidal cross section is provided in the longitudinal direction in the lid receiving stage 1 in the side groove main body 2, and the lid plate 3 for this is in a position coincident with the receiving groove 4. Protrusions 5 having a substantially semicircular cross section are provided, and the protrusions 5 are sized to be loosely fitted in the receiving grooves 4 so that the opposing surfaces of the lid receiving step 1 and the bottom surface of the lid plate 3 are in contact with each other. The receiving groove 4 and the protrusion 5 constitute a fitting portion 6 . In addition, about the shape of the receiving groove 4 and the protrusion 5, the receiving groove 4 is good also as a semicircle cross section, and the protrusion 5 is good also as a trapezoidal cross section .
[0013]
In the construction, after applying a release agent to the receiving groove 4 and the vicinity thereof, a sufficient amount of the fluid filler 7 is applied to the gap between the receiving groove 4 and the protrusion 5 by a jet gun such as a grease gun. Then, the filling in the receiving groove 4 is performed by placing the cover plate 3 coated with a release agent on the protrusion 5 and the vicinity thereof on the cover receiving stage 1 so that the protrusion 5 fits into the receiving groove 4. The material 7 is pressed by the protrusion 5 and flows while filling the gap between the receiving groove 4 and the protrusion 5 as shown in FIG. 1, and the surplus filler 7 flows in the longitudinal direction while receiving the lid as shown in FIG. It flows into the gap formed at the contact portion between the step 1 and the cover plate 3 and hardens, and the cover plate 3 is fixed to the cover receiving step 1 of the side groove main body 2 without being rattling, and when walking or running the vehicle Even when the cover plate 3 does not swing, noise and the phenomenon of the cover plate 3 being flipped up are prevented. If the filler 7 flows out unnecessarily from the gap between the receiving groove 4 and the protrusion 5 and the gap at the contact portion between the lid receiving step 1 and the lid plate 3, it may be removed.
[0014]
Forming the receiving groove 4 in the lid receiving step 1 of the side groove main body 2 is convenient for keeping the flowable filler 7 in a stationary state, and for forming the receiving groove 4 with respect to an existing forming mold. It can be used for simple refurbishment by simply adding a ridge.
[0015]
As the filler 7, for example, a grease-like or mayonnaise-like fluid epoxy resin or unsaturated polyester resin is suitable, and an epoxy or unsaturated polyester as a main material may be added with an appropriate curing material such as polyamine. For fluidity, a low fluidity that is nearly putty-like may be selected for convenience, and cement concrete or calcium carbonate may be added to make plastic concrete if necessary. A film for preventing adhesion may be attached to the contact surface between the step 1 and the cover plate 3, and the attachment of the film for preventing adhesion and the application of the release material between the cover receiving step 1 and the cover plate 3. One of them may be used instead of both, and it is important that there is no problem in removing the cover plate 3.
[0016]
【The invention's effect】
As described above, the present invention has the following effects.
[0017]
A receiving groove 4 is formed in the lid receiving step 1, and a protrusion 5 that is loosely fitted in the receiving groove 4 is formed in the cover plate 3, and a fitting portion 6 is configured by the receiving groove 4 and the protrusion 5. In addition, one of the receiving groove 4 and the protrusion 5 constituting the fitting portion 6 is formed in a substantially semicircular cross section, and the other is formed in a trapezoidal cross section, and an epoxy resin or unsaturated polyester is formed in the receiving groove 4. . Since the lid plate 3 is placed after the flowable filler 7 such as plastic concrete is placed, the gap formed by the receiving groove 4 and the protrusion 5 by pressing the filler 7 with the protrusion 5. In addition, when the filler 7 enters the gap between the planar contact surfaces of the lid receiving stage 1 and the lid plate 3 and the hardening of the filler 7 is waited, the lid plate 3 is placed in close contact with the lid receiving stage 1. Therefore, even when distortion or deformation, in particular, twisting occurs due to the molding process of the side groove body 2 or the lid plate 3 or subsequent changes, the lid plate 3 is prevented from generating noise due to pedestrians and vehicle running, The flip-up of the lid plate 3 is reliably prevented.
[0018]
Since the receiving groove 4 is formed in the lid receiving step 1 of the side groove main body 2, this is not only convenient for keeping the flowable filler 7 in a stationary state without flowing excessively, but also with respect to the mold for molding. There is an advantage that it is sufficient to simply modify the existing mold by simply adding a protrusion for forming the receiving groove 4 to the forming surface of the lid receiving step 1.
[0019]
Adopting an epoxy resin as the main material of the filler 7 exhibits a spacer function with high strength and durability under a relatively simple construction, and is economical.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view of a main part of a side groove with a cover plate to which a noise preventing and flip-up preventing device of the present invention is applied.
FIG. 2 is a partially broken exploded perspective view showing a state before the cover plate of the apparatus of FIG. 1 is placed.
FIG. 3 is a partially cutaway front view showing a main part of another state in which the cover plate of the apparatus of FIG. 1 is placed.
[Explanation of symbols]
1 Cover Step 2 Side Groove Body 3 Cover Plate 4 Groove 5 Projection 6 Fitting 7 Filling Material

Claims (4)

It consists of a U-shaped side groove body (2) formed with a substantially horizontal upward lid receiving step (1) on the left and right inner sides near the upper end, and a drop lid type lid plate (3) placed on the lid receiving step (1). A noise prevention and flip-up prevention device for a side groove with a lid plate, which is provided with a trapezoidal cross-section receiving groove (4) that gradually expands upward at the lid receiving step (1) of the side groove main body (2). for the cover plate (3), the fitting portion in the longitudinal direction (6) forms a section gradually reduced downwardly to loosely fit the the receiving groove (4) is provided with a generally semi-circular ridges (5) , fit occurs between Taise' surface between the cover plate (3) engaging portion and liquidity filler comprising the cured material was added epoxy resin (6) (7) filled with a lid受段(1) to this A side groove cover noise prevention and splash-up prevention device characterized in that a fluid filler (7) enters and cures into the gap. It consists of a U-shaped side groove body (2) formed with a substantially horizontal upward lid receiving step (1) on the left and right inner sides near the upper end, and a drop lid type lid plate (3) placed on the lid receiving step (1). A device for preventing noise and flipping-up in a side groove with a lid plate of the type, and is provided with a receiving groove (4) having a substantially semicircular cross section that gradually expands upward in the lid receiving step (1) of the side groove body (2) At the same time, the cover plate (3) is provided with a trapezoidal protrusion (5) in which the cross-section loosely fitted in the receiving groove (4) is gradually reduced downward to form a longitudinal fitting portion (6). and, between Taise' surface of the fitting portion and liquidity filler comprising the cured material was added epoxy resin (6) (7) filled with a lid受段(1) and the cover plate for this (3) A side groove cover noise preventing and flip-up preventing device characterized in that a fluid filler (7) enters and hardens into the generated gap. The noise prevention and splash-up preventing apparatus for side groove cover according to claim 1 or 2, wherein an unsaturated polyester resin is adopted as the fluid filler (7) instead of the epoxy resin. The noise prevention and flip-up prevention device for a side groove cover according to claim 1 or 2, wherein plastic concrete is adopted as the fluid filler (7) instead of the epoxy resin .

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