JP2015117506A - Muffling side ditch cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a muffling side ditch cover capable of facilitating installation work and removal work of a cover body together, by regulating generation of noise, by preventing looseness of a cover by a simple constitution, without adding a large change to a shape and a dimension of a side ditch body of a JIS standard.SOLUTION: The concrete side ditch cover is installed in a cover receiving part 21 formed on both sidewalls 20B of the side ditch body 20, and blocks up a top surface of the side ditch body 20, and is constituted by arranging a muffling member 10 having a support part 16 for supporting the whole cover by contacting with an installation surface 21a of the cover receiving part 21 by projecting downward more than a cover under surface 2D and a regulation part 15 for regulating its movement by contacting with an inside surface 21b of the cover receiving part 21 by projecting in the outer direction more than a cover side surface 2L, in at least four or more of places of a cover body corner part of straddling the cover under surface 2D and the cover side surface 2L.

Description

  The present invention relates to a concrete side groove cover installed on the top surface of a side groove main body, and more particularly to a silencer side groove cover that suppresses the generation of noise due to rattling of the side groove cover.

  For example, in Patent Document 1, in a side groove in which a side groove cover is disposed on a lid receiving part provided on the upper end of the inner side wall of each side wall of the side groove main body, the upper and lower parts are circular arcs with a circular recess on the inner wall surface of the lid receiving part. In addition, a plurality of vertical recesses formed so that the size of the string increases toward the lower part is provided symmetrically, and the side surface of the side groove cover is formed in a tapered surface with the lower surface width being wider than the upper surface width. The diameter of the circular recess is slightly larger than the arc diameter of the vertical recess, and the arc and chord are formed so that the size of the chord and chord increases toward the lower part, and the upper part is made of concrete and the lower part is a flexible muffler. An invention is disclosed in which a plurality of vertical convex portions formed in the above are suspended, and a restraining force is generated by line contact between the vertical concave portions and the sound deadening member to prevent rattling of the side groove cover and thereby restrict the generation of noise.

  Further, Patent Document 2 discloses an upward protrusion having a semicircular cross section or a polygonal cross section so that at least four corners in plan view of adjacent side groove lids straddle a horizontal lid hooking portion provided inside the upper side of the side groove main body. Are provided in a discontinuous manner in the longitudinal direction, and a supported portion configured to have an inclined surface is provided in the fitting portion protruding from the lower surface of the side groove lid, and the inclined portion of the supported portion on the side groove lid side is a side groove. There is described an invention in which a silencing function is satisfactorily exhibited without causing a rattling sound by making a line contact with the upward protrusion on the main body side.

JP 2009-263601 A JP2013-40480A

  However, in the invention described in Patent Document 1, since the side groove main body has a vertical recess in addition to the vertical protrusion formed on the side groove cover, the side groove cover is installed in a state where the relative position of the side groove cover with the side groove body is matched. Since it is necessary, there is a problem that it is difficult to improve work efficiency when installing.

  In addition, when the side groove lid is installed on both lid receiving portions of the side groove main body, the vertical concave portion receives the vertical convex portion, so that the position and size of the vertical concave portion and the vertical convex portion with respect to the side groove lid and the side groove main body are increased. There is also a problem that it is necessary to manufacture with high accuracy and it is difficult to reduce the manufacturing cost.

  In addition, the invention described in Patent Document 2 is an asphalt between an opposing vertical wall portion of the lid hanging portion and the left and right outer surfaces of the side groove lid, in order to suppress the rattling noise and exhibit a good silencing function. Since it is configured to be filled with a filler made of synthetic resin adhesive, sand, etc., there is a problem that it is difficult not only to install the side groove cover but also to facilitate the work in removing the side groove cover.

  Further, in Patent Document 1, it is necessary to form a vertical convex part in which both side surfaces of the side groove cover are partially projected, and in Patent Document 2, a supported part is formed by partially scraping the bottom surface of the side groove cover. In any case, there is also a problem that it is necessary to make a significant change to the basic shape of the standard side groove lid itself.

  In order to solve the above-described problems in the prior art, the present invention prevents the side groove cover from rattling by a simple configuration without making a significant change to the basic shape of the standard side groove cover itself. It is an object of the present invention to create a muffler side groove cover that can regulate the occurrence of the noise and can facilitate the installation work and the removal work of the side groove cover.

Of the means for solving the above problems, the main configuration of the present invention is as follows.
A side gutter lid made of concrete that is installed in lid receiving portions formed on both side walls of the gutter main body and closes the top surface of the gutter main body,
A support part that protrudes downward from the lower surface of the lid and contacts the installation surface of the lid receiving part to support the entire lid, and protrudes outward from the side face of the lid and contacts the inner side surface of the lid receiving part to move the support part. It is said that the muffler member provided with the restricting part for restriction is arranged at at least four or more places on the corners of the lid body straddling the lid lower surface and the lid side surface.

  In the muffler side groove cover of the present invention, since the support part of the muffler member is responsible for the support in the vertical direction with respect to the installation surface of the cover receiving part of the side groove cover, the lower surface of the cover of the muffler member and the installation surface of the cover receiving part are in direct contact with each other. At the same time, the restricting portion of the sound deadening member is responsible for restricting movement in the lateral direction and height direction with respect to the inner surface of the lid receiving portion of the side groove lid, so that the lid side surface and the inner side surface of the lid receiving portion are in direct contact with each other. To avoid. Thereby, it is possible to prevent rattling noise due to distortion of one or both of the side groove cover and the side groove body in a state where the side groove cover and the side groove body are in direct contact with each other.

  According to another aspect of the present invention, in the first aspect of the present invention, a configuration in which a plurality of ridges extending in the height direction are arranged in parallel in the restricting portion is added.

  In the above configuration, since the plurality of ridges function as a non-slip member having a high coefficient of friction of the silencing member between the inner wall surface of the side groove main body, the movement of the side groove lid in the vertical width direction (flowing water direction) is restricted.

  In another aspect of the present invention, the number of protrusions is 2 in the invention described in claim 2.

  In the said structure, the optimal structure in which a protruding item | line functions as a slipper can be proposed.

  According to another aspect of the present invention, in the invention according to any one of claims 1 to 3, a downward projecting dimension of the support portion from the lower surface of the lid is 0.5 mm or more and 2.0 mm or less. It is the one that added the configuration.

  In the above configuration, since the downward projecting dimension of the support part from the lower surface of the lid can be kept within the allowable error (± 3.0 mm) in the JIS standard for the height dimension of the lid body, the lid of the side groove body It is possible to make the lid top surface of the side groove lid installed in the receiving portion and the upper surface of the side wall of the side groove main body substantially the same surface, and to suppress the occurrence of rattling itself.

  According to another aspect of the present invention, in the invention according to any one of claims 1 to 4, the outward projecting dimension from the lid side surface of the restricting portion is 2.0 mm or more and 5.0 mm or less. It is the one that added the configuration.

  In the above configuration, the outward projecting dimension of the regulating portion from the lid side surface is within the range of the standard value +5.0 mm of the gap dimension W between one lid side surface of the side groove lid and the inner side surface of the side groove body facing this. Since it can be accommodated, the side groove lid with the silencer attached to the sides of both lids can be reliably installed in the lid receiving portion of the side groove body.

  According to another configuration of the present invention, in the invention according to any one of claims 1 to 5, a configuration in which the sound deadening member is inserted in advance at a corresponding portion of the lid body corner is added. It is.

  With the above configuration, the silencing effect can be enhanced without significantly changing the basic shape of the standardized side groove lid.

  According to another aspect of the present invention, in the invention according to any one of claims 1 to 5, the sound deadening member is inserted through an adhesive in a defect portion formed in advance at a corresponding portion of the lid corner. It is the one that added the configuration that it was fixed.

  Even in the above-described configuration, the silencing effect can be enhanced without significantly changing the standard shape of the standard groove cover.

  According to another aspect of the present invention, in the invention according to any one of claims 1 to 7, a structure in which the sound deadening member is formed of a synthetic resin material or a rubber material is added.

  In the above configuration, in addition to being able to improve stability by suppressing rattling and movement of the side groove lid by increasing the pressure-bonding force to the inner wall surface, it is possible to provide a muffler member excellent in formability at a low cost. As a result, it is possible to maintain the high quality of the side groove lid itself and reduce the overall manufacturing cost.

  Since the present invention has the above-described configuration, the following effects can be obtained.

  In the present invention, it is possible to prevent rattling caused by distortion of one or both of the side groove cover and the side groove body in a state in which the side groove cover is in direct contact with the side groove body, so that the vehicle runs on the side groove cover after installation. The generation of rattling noise due to can be greatly reduced.

  In addition, since the restricting portion composed of a plurality of ridges projecting laterally from the side surface of the lid and the support portion projecting downward from the lower surface of the lid exert an anti-slipping action, it follows the direction of flowing water in the side groove body caused by rattling by the vehicle. The movement of the side groove cover in the direction (downstream direction and upstream direction) can be restricted.

  Moreover, it is only necessary to attach a silencing member to the corner of the lid of the side groove lid, and it is not necessary to change the shape of the side groove body itself, so that the manufacturing cost can be reduced.

  Furthermore, since the side groove cover of the present invention can be used as it is for a side groove body manufactured according to JIS standard products, it is already installed by simply replacing the conventional side groove cover with the side groove cover having the silencing function of the present invention. The generation of rattling noise can also be reduced for the side grooves.

It is a perspective view which shows embodiment of the silence side groove cover of this invention. It is 1st Example of a silencing member, (A) is a perspective view which shows the silencing member as a finished product after cutting a holding protrusion, (B) is a perspective view which shows the silencing member before cutting a holding protrusion. is there. It is a perspective view which shows the use condition of a muffler side groove cover. It is a partial side view which shows the state seen from the IV arrow direction of FIG. It is a perspective view which shows 2nd Example of a silencing member. It is a perspective view which shows an example of the use condition of a sound deadening member.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a silencing groove cover according to the present invention, FIG. 2 is a first example of the silencing member, and FIG. 1A shows the silencing member as a finished product after the holding projections are cut. FIG. 3B is a perspective view showing the silencer member before cutting the holding projection for fixing the silencer member to the mold frame, FIG. 3 is a perspective view showing a use state of the silencer side groove cover, and FIG. It is a partial side view which shows the state seen from IV arrow direction.

  As shown in FIG. 1, a side groove lid (silencer side groove lid) 1 having a silencing function is provided on a lid body 2 formed as a standard product such as, for example, Japanese Industrial Standards (JIS) and both side surfaces of the lid body 2. And a plurality of muffler members 10.

  The lid main body 2 is basically a flat six-sided structure made of concrete having a lid upper surface 2U, a lid lower surface 2D, a lid front surface 2F, a lid rear surface 2B, a right lid side surface 2R, and a left lid side surface 2L. A vertical groove 2a is formed on the lid front surface 2F.

  The sound deadening member 10 is provided at a plurality of positions on the lid side surfaces 2R and 2L of the lid body 2. In the present embodiment, as shown in FIG. 1, the silencer member 10 is provided at two positions on the front and back sides of the right lid side surface 2R, but the left lid side surface 2L is also the same. A total of four positions are provided.

  As shown in FIG. 2 (A), the sound deadening member 10 is a synthetic resin or rubber molded product, and is a four-sided structure lacking the top and rear surfaces of a regular hexahedron (die) having a hollow inside. On the front surface 10 </ b> A of the sound deadening member 10, a trough portion 12 that is provided in the center and extends in the height direction and two ridges 11 and 11 that extend along the height direction on both sides across the trough portion 12 protrude. The both side surfaces 10B and 10B are formed with latching projections 13 each having an L shape projecting sideways. Then, a corrugated inclined surface 14 is formed on the front surface 10A from the upper surfaces of the side surfaces 10B and 10B to the ridges 11 and 11, and the bottom surface 10C (see FIG. 4) is a flat surface.

  As shown in FIG. 4, in the present embodiment, the front surface 10 </ b> A of the muffling member 10 including the ridge 11 constitutes a restricting portion 15 that protrudes laterally from the lid side surface 2 </ b> L. The protruding dimension is set to about 3.0 mm. Further, the bottom surface 10C of the muffling member 10 constitutes a support portion 16 that protrudes downward from the lid lower surface 2D, and the protrusion dimension h of the support portion 16 is set to about 1.0 mm.

Such a gutter lid 1 has a silencing function as shown in FIG. 1, for example, by pouring ready concrete into a formwork in which a sound deadening member 10 is previously arranged at a predetermined position and solidifying it, and then removing the formwork. The side gutter lid 1 can be manufactured (insert).
In this case, as shown in FIG. 2 (B), a rod-like holding projection 18 is integrally formed on the front surface 10A of the muffler member 10 after resin molding, and the holding projection 18 is held in the mold. By pouring the concrete in a state where it is positioned at a predetermined position, it is possible to accurately attach the muffling member 10 to the lid corners extending over the lid lower surface 2D and the lid side surfaces 2R, 2L of the side groove lid 1. Since both the latching protrusions 13 are embedded in the concrete forming the lid main body 2, it is possible to prevent the silencing member 10 from falling off after demolding.
Then, the silencing member 10 cuts the holding protrusion 18 from the narrowly formed root portion when the side groove lid 1 as a product is removed or when the side groove lid 1 is installed on the side groove main body 20 described later, that is, FIG. Or in the state shown in FIG.

  The side groove lid 1 provided with a plurality of sound deadening members 10 is installed in a side groove main body 20 formed of a falling lid type U-shaped side groove as shown in FIG.

  As shown in FIG. 3, the side groove main body 20 has a lid receiving portion 21 that is formed in an approximately L shape on the upper side walls 20B and 20B and extends along the direction of flowing sewage flowing through the groove bottom 20A. The lid receiving portion 21 is configured to have a horizontal installation surface 21a and an inner side surface 21b composed of a surface perpendicular thereto.

  In FIG. 4, the side groove lid 1 is fitted between the two lid receiving portions 21, and the support portions 16 of the four silencer members 10 are in contact with the installation surface 21 a of the lid receiving portion 21 so as to cover the side groove lid. Support one whole. Further, the restricting portions 15 of the four muffler members 10 are in pressure contact with the inner side surface 21 b of the lid receiving portion 21.

  Here, as shown in FIG. 4, when the projecting dimension of the restricting portion 15 constituting the muffler member 10 is less than 2.0 mm, the pressure contact force with respect to the inner side surface 21 b is reduced and the function as the restricting portion 15 is exhibited. In consideration of the fact that the standard value of the gap dimension w between the lid side surface 2L and the inner side surface 21b is 5.0 mm regardless of the depth dimension or inner width dimension of the flowing water cross section of the side groove main body 20, The protruding dimension of the portion 15 from the lid side surface 2L in the outward direction is 2.0 mm or more and preferably 5.0 mm or less, more preferably 3.0 mm.

  In FIG. 4, the protrusion dimension h of the support portion 16 constituting the sound deadening member 10 is the tolerance of the standard value for the height dimension H of the lid body 2. -3.0 mm <h ≦ + 3.0 mm in consideration of ± 3.0 mm regardless of the above and the tolerance of the standard value for the depth dimension D of the side groove body 20 is ± 3.0 mm. The range is as follows, but the range in which practical problems are unlikely to occur in consideration of prevention of rattling, safety of pedestrians, etc. and prevention of damage to the lid body 2 is 0.5 mm or more, and 2 0.0 mm or less, preferably 1.0 mm.

  As a result of an experiment in which the vehicle is run on the side groove cover 1 installed in the side groove body 20, the side groove cover 1 provided with the sound deadening member 10 is more vehicle than a normal side groove lid not provided with the sound deadening member 10. It was proved that the rattling sound generated when passing can be greatly reduced. The reason is that when the two ridges 11 constituting the restricting portion 15 of the sound deadening member 10 are on the inner side surface 21b, the side groove lid 1 is moved in the vertical width direction (flowing water direction) and the height direction by pressing. It is considered that the restriction and the four support portions 16 mediate the silencer member 10 to absorb the distortion of the side groove body 20 or the side groove cover 1 and stably support the side groove cover 1.

  FIG. 5 is a perspective view showing a second embodiment of the silencer.

  In addition, about the same member, the same part number is attached | subjected and demonstrated.

  The silencing member 10 shown in FIG. 5 as the second embodiment is different from the silencing member 10 of the first embodiment, mainly in the first embodiment, in which the silencing member 10 is previously held in a mold and placed in concrete. In the second embodiment, the sound deadening member 10 is attached to a predetermined position of the lid body 2 that has already been completed. The other basic configurations and effects are the same as in the first embodiment.

  As shown in FIG. 5, the muffling member 10 has a substantially L shape having a support portion 16 formed of a square bottom surface 10 </ b> C extending in the horizontal direction and a restriction portion 15 formed of a square front surface 10 </ b> A extending in the vertical direction with respect to the support portion 16. Shape. On the front surface 10A, a trough portion 12 provided in the center and extending along the height direction and two ridges 11 and 11 extending along the height direction on both sides of the trough portion 12 are formed to protrude. ing. The bottom surface 10C is a flat surface.

  A pair of convex ribs 17, 17 formed in parallel with each other are formed on the back surface of the restricting portion 15 and the upper surface of the support portion 16, thereby reinforcing the restricting portion 15 and the support portion 16.

  As shown in FIG. 6, a defect 2b is formed at the corner of the lid that spans between the lid side 2R on the lid body 2 to which the silencer member 10 is attached and the lid lower surface 2D, and the defect on the lid side 2R. A pair of concave portions 2c and 2c corresponding to the convex ribs 17 and 17 are formed in the defect portion 2b on the side of 2b and the lid lower surface 2D. And the sound deadening member 10 is firmly fixed to the lid main body 2 by setting the convex ribs 17 and 17 in a state in which the concave portions 2c and 2c are fitted, and being fixed through the adhesive applied in the defect portion 2b. Is attached.

  In addition, although such a defect | deletion part 2b is formed in a total of four places, for example, two places of the right cover corner | angular part, and two places before and behind the left cover body corner | angular part, the shape of the normalized lid | cover main body 2 is shown. It is possible to install without significantly changing.

  As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.

  For example, in the above-described embodiment, the muffling member 10 is attached at four positions on the corners of the lid body between the lid lower surface 2D and the lid side surface 2R of the side groove lid 1 or between the lid lower surface 2D and the lid side surface 2L. However, the number of the muffling members 10 is not limited to four, and may be at least four or more.

  Moreover, although the said Example showed and demonstrated the example which formed the two protruding strips 11 and 11 extended in parallel along a height direction on 10 A of front surfaces of the muffling member 10, the number of the protruding strips 11 is two or more. There may be. However, a configuration with two ridges 11 is preferable in terms of performance.

  The side groove cover (silencer side groove cover) provided with the sound deadening function of the present invention can be used in a wider area in the field of JIS standard falling lid type U-shaped side grooves.

1: Side groove cover (silent side groove cover)
2: Lid body 2a: Vertical groove 2b: Defect 2c: Recess 2R: Right lid side surface 2L: Left lid side surface 2D: Lid lower surface 10: Silencer member 10A: Silencer member front surface 10B: Silencer member side surface 11: Convex Article 12: Valley 13: Latching projection 14: Inclined surface 15: Restricting portion 16: Supporting portion 17: Convex rib 18: Holding projection 20: Side groove main body 20A: Groove bottom 20B: Side wall 21: Lid receiving portion 21a: Installation surface 21b: inside surface

Claims (8)

A side gutter lid made of concrete that closes the top surface of the side gutter main body (20) and is installed on lid receiving portions (21) formed on both side walls (20B) of the gutter main body (20),
A support portion (16) that protrudes downward from the lid lower surface (2D) and contacts the installation surface (21a) of the lid receiving portion (21) to support the entire lid, and outward from the lid side surfaces (2R, 2L) A silencing member (10) provided with a restricting portion (15) that protrudes in contact with the inner side surface (21b) of the lid receiving portion (21) and restricts its movement, the lid lower surface (2D) and the lid A silencer side groove lid, characterized in that it is disposed at at least four or more locations on the corners of the lid over the side surfaces (2R, 2L).   The muffler side groove cover according to claim 1, wherein a plurality of ridges (11) extending in the height direction are arranged side by side on the restricting portion (15).   3. The muffler side groove cover according to claim 2, wherein the number of the ridges (11) is two.   The muffler side groove cover according to any one of claims 1 to 3, wherein a projecting dimension of the support portion (16) downward from the lid lower surface (2D) is 0.5 mm or more and 2.0 mm or less.   5. The muffler side groove cover according to any one of claims 1 to 4, wherein a protruding dimension of the restricting portion (15) outward from the lid side surface (2R, 2L) is 2.0 mm or more and 5.0 mm or less. .   The muffler side groove cover according to any one of claims 1 to 5, wherein the sound deadening member (10) is inserted in advance at a corresponding portion of the lid body corner.   The sound deadening member (10) is fixed to a defect (2b) formed in advance at a corresponding portion of the corner of the lid through an adhesive. Silent groove cover.   The muffler side groove cover according to any one of claims 1 to 7, wherein the muffler member (10) is formed of a synthetic resin material or a rubber material.

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