JP2526667Y2 - Noise suppression device for the gutter lid - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing noise from closing a gutter when the vehicle passes over the gutter.

[0002]

2. Description of the Related Art When an upper end opening of a gutter is closed with a gutter, it is difficult for the lower surface of the gutter and the lid receiving surface of the gutter to be in uniform contact with each other. There was a problem that noise was generated due to rattle of the groove lid and hindered the living environment.

[0003] In view of such problems, for example,
As disclosed in Japanese Patent Publication No. 0-8777, rubber buffer members are adhered to both sides of the lower surface of a groove cover, and some attempts have been made to prevent noise by the buffer function of the buffer members. . However, there is a problem that the cost is increased due to a lot of labor and time required for attaching the cushioning member, and the cushioning member may be rubbed and peeled off when the groove cover is fitted. However, there is a problem that it is easy to cause adhesion deterioration of the cushioning member due to rainwater infiltration into the bonding surface or the action of a repeated load, and it is difficult to continuously exert the noise prevention effect.

[0004] Apart from this noise problem,
No. 43025 proposes a connection structure between a side groove and a groove cover which facilitates removal of the groove cover while preventing fixing of the groove cover by earth pressure. This connection structure is a structure that can support the earth pressure applied to both side walls of the gutter by the gutter, but also prevents the upper part of the gutter from bending and prevents the gutter from being caught by both upper parts of the gutter. When the groove lid is placed on the lid receiving surface provided at the upper end of the wall, the side groove and the groove lid are integrated using a connecting member made of a hard synthetic resin.

FIG. 2 shows an embodiment of such a connecting structure, in which a connecting projection projecting from the cover receiving surface is fitted into a fitting recess provided in the groove cover in a slightly loose fitting state. Although the state is shown, even in such a loose fitting state, since the fitting position of the groove cover to the side groove is specified temporarily, when the vehicle passes over the groove cover, the groove cover is A little bit of rattling can be prevented. However, simply fitting the engagement projection and the engagement recess loosely in this manner makes it difficult to fix the lower surface of the groove lid and the lid receiving surface of the side groove in close contact with each other. It cannot be prevented.

Accordingly, the present inventor has proposed a method of Japanese Utility Model Publication No. 2-3664.
As disclosed in Japanese Patent Application Laid-Open No. H10-260, a connecting means for fixing a groove cover to a side groove using a solid or hollow hard synthetic resin connecting member in which tapered shaft-shaped connecting pieces are integrated in a back-to-back state has been considered. This will be described, for example, in the case of using a solid connecting member. As shown in FIG. 5, first, one connecting piece b of the connecting member a is press-fitted into a tapered hole c provided in a side groove. I do. Thereafter, the grooved lid d is aligned with the tapered hole e provided in the grooved lid and the other connecting piece f, fitted into the step g, and pressed appropriately downward, so that the connecting piece f is inserted into the hole e of the grooved lid. To fix the groove lid to the side groove.

[0007]

[Problem to be solved by the invention]
The following problems remain in the connecting means. That is,  Problems caused by manufacturing errors Drying shrinkage of concrete gutters and gutters
Due to the accuracy limitations in manufacturing
Production error of about 1 mm occurs.
Error of plus or minus 2mm is acceptable
And it was.

For this reason, the inner diameters of the holes c and e (tapered holes) for engaging the side grooves and the groove lid formed for fitting the connecting member cannot be formed accurately. Therefore, it is difficult to press-fit the connecting pieces b and f of the connecting member into the respective holes of the side groove and the groove cover in a predetermined manner, even if the connecting member made of the hard synthetic resin can be manufactured with high accuracy. In some cases, a local support state occurs in which the groove lid d rises from the lid receiving surface h as shown in FIG. Of course, since there are some manufacturing errors in the connecting members, incomplete press-fitting is more likely to occur. Moreover, in such a local support state, since the press-fit amount of the connecting piece is not always constant, as shown in FIGS. 6 and 7, the groove lid tends to be in an inclined state in which the inside is distorted.

[0009] Of course, two types of errors can be considered, an error in which the diameter of the hole becomes large and an error in which the diameter of the hole becomes small. The purpose of the present invention will not be achieved.

By the way, if the groove lid is supported in a raised state, a bending moment acts between the support parts in the longitudinal direction F1 (FIG. 7) of the lid plate, which should not act conventionally. Also in the width direction F2 of the groove lid (FIG. 6), unlike the normal state where the groove lid contacts the lid receiving surface,
A non-designed section force will act. Thus, in such a support state, an excessive bending moment or the like acts on various parts of the groove lid as compared with the conventional closed state. Therefore, when a car passes over such a raised groove lid,
Not only could the rattle of the groove lid not be prevented, but also the groove lid could be damaged, such as cracks in the groove lid due to the application of vehicle load.

It has been considered that the manufacturing error of the concrete gutter or groove cap may be absorbed by the elastic deformation of the solid or hollow hard synthetic resin connecting member. When the shrinkage error of the diameter of the hole provided in the above becomes as large as about 1 to 2 mm as described above, the deformation of the hard synthetic resin connecting member cannot cover the whole.

[0012]  Groove lid and side due to difficulty in press-fitting connecting members
About the danger of groove damage In the present invention, the gutter and the gutter are integrated using a connecting member.
Inevitably, the tapered hole must be
Formed on both sides. Also, facing the side groove according to it
A tapered hole is also provided on the lid receiving surface of the side wall.
In other words, these holes should be close to the groove cover and the end of the side groove.
It is provided. Therefore, the pressure of the connecting member to the hole
If it is difficult to insert it, try to force it
Then, by the wedge action of the connecting piece that forms the taper shaft,
Large pressure is generated at the edges of the lid receiving surface, and these edges
Cracking or chipping may cause a drop in the strength of the gutter or gutter.
There was fear. Temporarily press-fitting, groove cover, etc. are damaged in appearance
Even if it looks like it is not scratched,
Therefore, external forces such as the load of the car running on the groove lid
Addition can cause cracks or chips at the edge of the groove lid or gutter
Could occur in the future .

[0013]  Reuse the removed groove lid and reuse the connecting member
Problem when fixing to the gutter The groove cover of the gutter can be removed when cleaning the inside of the gutter.
There is. Remove the groove cover thus removed from the original connecting member
If you want to fix the gutter by reusing it, The present invention
Problem of not being able to reliably prevent rattle of the groove lid intended for
was there. The reason is that the connecting member to the hole
During the first press-fitting, the outer peripheral surface of the member wears and plastic deformation occurs.
The close contact between the outer peripheral surface of the member and the inner peripheral surface of the hole
This is because the property deteriorates (that is, the fitting becomes loose).

[0014]  Air and water repulsion in the hole
Difficulty of conclusion Insert the tape of the connecting member into the tapered hole provided in the groove lid or side groove.
When press-fitting a connection piece that has a tapered shaft shape, both ends are closed during press-fitting.
Air remaining in this hole will be
There is a problem that compression is difficult due to compression with press-fitting.
As one means for that purpose, the above-mentioned Japanese Utility Model Publication No.
Vertical grooves or spiral grooves on the surface of the connecting member.
In this case, a configuration is employed in which the air in the hole is discharged. I
However, since the groove on the peripheral surface of the connecting member is narrow,
There was a problem with poor venting efficiency. Especially the connecting member is medium
If empty, the air in this hollow is extremely difficult to exhaust
Therefore, the difficulty of press-fitting the connecting member has increased.

In particular, when working in the rain or after rain,
If water remains in the part, if the connecting member is hollow,
The part is filled with water. Water has compressibility like air
In order not to eliminate this water, the pressure
Entry becomes extremely difficult. Therefore, prior to press-fitting the connecting member
It is troublesome to stand and remove water in the hole.
Was.

Also, in particular, the groove cover which has been removed is reused for the connecting member.
If you want to fix it by using a flute or spiral as described above
Even if a groove is formed in the first press-fitting,
The groove is crushed by wear or plastic deformation of the outer surface of the member
To make it difficult to bleed air during press-fitting.
The title arose.

The present invention can solve the above problems while can the gutter and Mizofuta with integrated by simple means, it is an object to provide a noise prevention device gutters lid portion.

[0018]

A noise control device (hereinafter referred to as "device") 1 for a gutter closing portion according to the present invention comprises a concrete gutter 2 and a concrete gutter 5 for closing an upper end opening thereof. And a noise reduction device for a side groove closing lid united by using a connecting member 6, wherein a tapered hole 13 is formed in each of both side portions 12, 12 on the lower surface of the groove lid 5. And the lid receiving surfaces 11, 11 of the opposing side walls 9, 9 of the side groove 2 are provided with holes 1 of the groove lid.
3, and a tapered hole portion 14 is provided.

The connecting member 6 is formed by integrating tapered shaft-shaped connecting pieces 15 and 16 in a back-to-back state at a large-diameter end thereof, and having a through hole 17 formed along the axis thereof. And a peripheral surface portion 19
In is split groove 20 continuous in the axial direction is provided, before
The diameter of the connecting piece is flexible so that it can be elastically reduced . Then, the connecting one coupling piece 15 of the member 6 is press-fitted to the other connection piece 16 with press-fitted into the hole portion 14 of the groove in the hole 13 of the Mizofuta adhesion Mizofuta 2 to the lid receiving surface 11
The said side groove and a groove cover are integrated using the said connection member so that it may be in the state which was made.

[0020]

According to the apparatus of the present invention, the connecting member 6 for connecting the side groove 2 and the groove cover 5 has a through hole 17 along its axis, and its peripheral surface 19 has an axially dividing groove. 20 is provided so that the diameter of the connecting piece can be elastically reduced.
Since it is made of a rigid synthetic resin cylindrical body having flexibility, the following effects can be obtained. That is, even if the inner diameter of the tapered hole is formed slightly smaller than the design due to shrinkage of the concrete or a dimensional error at the time of manufacturing, or if there is some manufacturing error in the connecting member, the side groove 2 and the groove cover are not affected. The connecting member 6 fitted into the holes 13 on the fifth side is
Because of the hollow cylindrical body having the split groove 20, the dimensional error is reduced by the individual elastic reduction of the diameter of the connecting pieces 15, 16 .
Ri can be absorbed. As a result, the connection member 6 is
14 can be completely fitted, and the side groove 2 and the groove cover 5 can be stably connected in a close contact state.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, the device 1 of the present invention is formed by integrating a side groove 2 and a groove lid 5 for closing an upper end opening 3 thereof by using a connecting member 6.

More specifically, as shown in FIG. 1, for example, the gutter 2 is formed by connecting a concrete gate-type gutter block 7 continuously and casting a bottoming concrete at the bottom thereof. Step 1 provided on the upper inside of side walls 9, 9
The horizontal planes 0 and 10 serve as lid receiving surfaces 11 and 11.

The groove lid 5 is formed as a rectangular plate made of concrete, and both side portions 12 and 12 of the lower surface thereof are covered with the lid receiving surface 1.
The upper end opening 3 of the side groove 2 is closed by being supported by 1, 1. As shown in FIGS. 2 and 3, tapered holes 13 are respectively provided on both sides 12, 12 on the lower surface of the groove lid 5 so as to be positioned before and after the holes 13. Also, the opposing lid receiving surfaces 11, 1
1, a tapered hole 14 is provided in alignment with each hole provided in the groove lid in the closed state.

As shown in FIGS. 2 and 4, the connecting member 6 has a tapered shaft-shaped connecting piece 15 which is press-fitted into the hole 14 of the side groove.
And connecting piece 1 in the form of a tapered shaft pressed into hole 13 of groove cover
6 is formed as a hollow member made of a hard synthetic resin (for example, made of polypropylene) integrated at its large diameter end.

More specifically, as shown in FIG. 4, the connecting member 6 is formed as a rigid synthetic resin cylinder having a through hole 17 provided along the axis thereof, and a peripheral surface 19 thereof.
, An axially continuous groove 20 is provided,
The peripheral surface portion 19 has a flexibility capable of being elastically deformed inward. FIG. 2 shows a state in which the groove cover 5 is fixed to the side groove 2 by using the cylindrical connecting member 6 having the split groove.
The two connecting pieces 15 and 16 are press-fitted with their peripheral surface portions 19 slightly narrowed inward. Since the connecting member 6 has the split groove 20 communicating with the through hole, even if the diameter of the tapered hole is formed to be slightly smaller due to shrinkage of the concrete or a dimensional error at the time of manufacturing, the error is reduced by the split groove. 20 can be absorbed by the allowance for deformation, and both connecting pieces 15, 16 can be absorbed.
Is easily pressed into each of the holes 13 and 14.

[0026]

[Effects of the Invention] The present invention is configured as described above, and has the following excellent effects. According to the present invention, even if the inner diameter of the tapered hole is slightly smaller than the design due to shrinkage of the concrete or dimensional error at the time of manufacture, and even if there is some manufacturing error in the connecting member, Since the connecting member fitted into the hole is a hollow cylinder having a split groove continuous in the axial direction, the dimensional error can be absorbed while the connecting pieces are individually deformed inward. As a result, the connecting member can be completely fitted into both the hole portions, and the side groove and the groove cover can be connected in a reliable close contact state.

Thus, according to the present invention, the gutter can be stably fixed to the gutter, so that the noise generated by the vehicle passing over the gutter of the gutter can be reliably and permanently prevented. . Further, it is possible to prevent a crack from being generated in the groove cover due to an unreasonable bending moment acting when the groove cover is raised and supported.

[0028]  The connecting piece of the connecting member has a tapered shaft shape.
The connecting pieces are individually elastic within the groove width of the split groove.
Press-fitting is possible while sexually reducing the diameter. Therefore, for connection
The hole is provided close to the end of the groove lid or gutter.
However, the edges of the groove lid and the lid receiving surface are
There is no danger of strength drop due to chipping or chipping. Also, groove
Cracks and chips at the edges of the lid and gutters
The fear that it will occur in the future can be eliminated.

[0029]  The connecting piece of the connecting member has a tapered shaft shape.
The connecting pieces are individually elastic within the groove width of the split groove.
Press-fitting is possible while sexually reducing the diameter. Therefore, removal
When attaching the grooved lid by reusing the connecting member
Can secure the adhesion between the outer peripheral surface of the member and the inner peripheral surface of the hole.
Ensure the rattling of the groove lid as invented is the same as at the beginning.
Can be prevented.

[0030]  The through hole of the connecting member communicates with the split groove
Therefore, the air in the hole is
It is quickly discharged to the outside and, therefore,
The problem of difficulty in press-fitting the connecting member
I will not let you. Also, water accumulates in the holes provided on the gutter side.
When the connection member is pressed in, the water
To remove water in the hole as before.
Leave the water in the pool without the hassle of leaving
But the press-fitting of the connecting member can be done easily and efficiently.
You. The ease of press-fitting of such a connecting member depends on the
When attaching the lid to the gutter by reusing the connecting member,
It really works.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a procedure for integrating a groove cover and a side groove using a connecting member.

FIG. 3 is a perspective view showing a groove cover.

FIG. 4 is a perspective view showing a connecting member.

FIG. 5 is a cross-sectional view illustrating a state in which a groove cover and a side groove are integrated using a solid connecting member.

FIG. 6 is a cross-sectional view illustrating a problem in a case where a groove cover and a side groove are integrated using a solid connecting member.

FIG. 7 is a longitudinal sectional view for explaining a problem in a case where a groove cover and a side groove are integrated by using a solid connecting member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device 2 Side groove 5 Groove lid 6 Connecting member 9 Side wall 11 Lid receiving surface 13 Groove lid hole 14 Side groove hole 15 Connecting piece 16 Connecting piece 17 Through hole 19 Peripheral surface 20 Split groove

Claims (1)

(57) [Scope of request for utility model registration] A connecting member (6) for connecting a concrete gutter (2) and a concrete gutter (5) for closing an upper end opening thereof.
A noise preventing device for a side groove closing portion integrated by using a groove, wherein tapered hole portions 13 are provided at both sides 12, 12 of the lower surface of the groove cover 5 so as to be positioned before and after the same. At the same time, the lid receiving surfaces 11, 11 of the opposing side walls 9, 9 of the side groove 2
Are provided with tapered holes 14 which are aligned with the holes 13 of the groove lids, and the connecting member 6 is formed with connecting pieces 15, 1 having a tapered shaft shape.
6 is a cylindrical body made of a hard synthetic resin having a large diameter end integrated in a back-to-back state and provided with a through hole 17 along the axis thereof, and is continuous with the peripheral surface 19 in the axial direction. A split groove 20 is provided, and the diameter of the connecting piece is
There is comprises a flexible which can shrink elastically, pressed the other connecting piece 16 with press-fitting the one coupling piece 15 of the coupling member 6 into the hole portion 14 of the groove in the hole 13 of the Mizofuta, groove
So that the lid 2 comes into close contact with the lid receiving surface 11,
A noise prevention device for a gutter closing lid, wherein the gutter and the gutter are integrated using the connecting member.