JP3047851U - Gutter structure, gutter cover and gutter structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gutter structure capable of preventing rattling of a gutter, preventing noise and preventing the gutter from jumping up, and a gutter body and a gutter therefor. SOLUTION: A main-side groove lid 8 has lid lower flat portions 11a, 11d.
b, the lower flat portion of the lid is curved (R) from both end surfaces of the gutter cover toward the center of the gutter cover, and the lower flat surface portion of the lower gutter cover is formed from both end faces of the gutter cover to the center. It is curved (S) toward the side. Further, there are provided lid curved surface portions 10a, 10b extending upward continuously from the lid lower planar portions 11a, 11b, and lid upper planar portions 9a, 9b extended upward from the lid curved surface portion. . The gutter lid 8 has upper flat portions 2a and 2b formed on the inner surfaces of the opposing gutter walls, curved surface portions 3a and 3b extending downward from the upper flat portion, and a lower surface continuous from the curved surface portions. Is inserted into the side groove body 1 having the lid mounting portions 4a and 4b extended to form a side groove structure.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a gutter structure, a gutter cover and a gutter structure which are buried and installed on the side of a general road and used as a drainage channel. More specifically, a gutter lid that can prevent the loss of each corner portion, stabilize the fitting state of each other without play while maintaining strength enough to withstand the running weight of the vehicle, and the like. The present invention relates to a gutter structure, and a gutter structure obtained by combining the gutter cover and the gutter structure.

[0002]

[Prior art]

 Conventionally, there is a gutter in which a flat rectangular gutter and a pair of gutters are combined. However, when a vehicle or the like travels on the gutter, the gutter will rattle and generate noise. Therefore, inventions and ideas have been made to solve this kind of problem.

As this type of gutter structure, for example, as shown in Japanese Patent Application Laid-Open No. 6-248688, a gutter cover having a contact surface formed into a curved surface is geometrically similar to the gutter cover. It is known to combine a gutter body having a contact surface part formed into a curved surface to enhance the adhesion between the gutter lid and the gutter body. Also, as shown in Utility Model Registration No. 30266678 and Utility Model Registration No. 3031035, noise is prevented by combining the gutter cover and the gutter frame in line contact, and the gutter cover is provided at the bottom of the gutter cover. It is also known to prevent the gutter lid from jumping up by using a corner for preventing jumping.

[0004]

[Problems to be solved by the invention]

 However, in order to make the gutter body and the gutter cover adhere to each other, it is necessary to make the contact surface of the curved surface of the gutter cover and the contact surface of the curved surface of the gutter body have the same similar shape. A high-precision steel formwork had to be used so that there was no deviation in the shape. In addition, the cost of forming the mold is high, and it is necessary to control the molding dimensions sufficiently, which is disadvantageous in terms of economy and workability. Further, when a wheel of the vehicle rides on the gutter cover and a load is concentrated on a part of the gutter cover, the gutter cover may slip and tilt and tend to jump up. If the side gutter lid comes off from the side gutter due to this jumping up, a dangerous state occurs because the gutter lid protrudes or the inside of the gutter is exposed to the outside.

In the gutter where the gutter cover and the gutter body are in line contact with each other, when the gutter cover is fitted into the gutter body, the gutter cover does not make line contact at all positions, but has partial contact only at the center (wire contact). ) Or partial contact (line contact) at some of the two or three points may cause rattling or noise. Further, a mold for forming the gutter frame and the gutter cover can be obtained mainly by repeatedly bending and processing a flat plate. However, the line contact type gutter body and gutter lid have corner portions arranged at a narrow interval (about several mm). However, it is not easy to form a corner by bending a flat plate. For this reason, it is necessary to form a corner shape by combining and arranging square members and the like and fixing them by welding or the like, which requires extra labor and cost as compared with a normal side groove mold. However, when the method using the square bar is used, a gap is generated between the flat plate and the square bar, and concrete may flow into the gap and solidify, thereby causing burrs and the like. In addition, vibrations and jumps of the gutter cover may cause damage to the corners of the gutter body and the gutter cover, so that the initial effects such as noise and rattling may not be obtained.

[0006] The present invention is intended to solve the above-described problems, and ensures line contact while preventing loss of each corner, while securing sufficient strength for traveling of a vehicle or the like. It is an object of the present invention to provide a gutter structure for preventing rattle and noise of the gutter and preventing the gutter from jumping up, and a gutter body and a gutter for that purpose.

[0007]

Means for Solving the Problems The gutter body of the first invention is a gutter body having a pair of opposed gutter walls and a bottom body provided so as to bridge the lower end of each gutter wall. On the upper side of the inner surface of the side groove wall, there is provided a curved surface portion or an inclined surface portion, and a convex portion or a round chamfered portion at least at a tip extending continuously below the curved surface portion or the inclined surface portion. And a lower flat surface portion or a lower curved surface portion extending continuously below the lid mounting portion. Further, as shown in the second invention, the side groove body may include upper flat portions (2a, 2b) continuously extending above the curved surface portion or the inclined surface portion.

[0008] The gutter according to the third invention has a lid curved surface portion or a lid inclined surface portion, a lid lower flat portion extending below the lid lower surface portion, and a lid bottom portion extending below the lid lower flat portion. And a lid corner portion formed between the lid lower plane portion and the lid bottom surface portion, wherein the lid corner portion is chamfered or convex. The “lid curved surface portion” and the “lid inclined surface portion” can make line contact with the “convex portion” and the “round chamfered portion” of the “lid mounting portion” in any combination. Further, the “cover curved surface portion” and the “cover inclined surface portion” may be configured up to the upper end side of the main groove cover, or an arbitrary surface (curved surface portion) may be provided on the lid curved surface portion and the lid inclined surface portion. , Inclined surfaces or vertical surfaces). The “chamfer” provided in the “cover corner” may be any shape as long as the cover corner has an obtuse angle, and the shape after the chamfer is not particularly limited, such as a curved surface or a slope.

Further, as shown in a fourth invention, the side gutter cover is formed by curving both side surfaces of the gutter cover toward the inside of the gutter cover from both end surfaces of the gutter cover to the center of both side surfaces. At least one of the lid bottom surface portions may be provided so as to be curved from both end surfaces of the gutter cover toward the center toward the upper side of the gutter cover.

[0010] Furthermore, as shown in a fifth invention, the side groove cover may have a curved line-symmetrical shape in which the curvature of both side surfaces of the side groove cover or the bottom surface of the cover is continuous. . The “substantially curved” of the “cover bottom portion” of the “gutter cover” refers to not only an arc shape (bently curved shape) but also a deformed shape including a flat surface or a curved surface, for example, a vertex is directed upward. The term “inverted V shape” or “trapezoidal shape with the short side provided on the upper side” is also used. The degree of the curvature of the lid bottom portion may be such that it can be touched by a predetermined load (for example, an automobile or the like), and for example, has a depth of about 0.5 to 5 mm, preferably 1 to 5. It is about 4 mm, more preferably about 1 to 3 mm.

[0011] Further, as shown in the sixth invention, the side groove lid may have a stepped shape in which the curvature of the bottom surface of the lid is line-symmetric with the center at the bottom. The “substantially curved” of the “cover bottom portion” includes, for example, not only a stepped bow shape as shown in FIG. 11 but also a stepped inverted V shape, a stepped trapezoidal shape, and the like. It is used for meaning. The present gutter cover can be applied not only to the case where the gutter structure shown in the seventh to tenth inventions is embodied, but also to the case where other gutter structures are realized.

According to a seventh aspect of the present invention, there is provided a gutter structure according to claim 1, a lid curved surface portion or a lid inclined surface portion, a lid lower flat portion extending below the lid groove flat surface portion, and a lid lower flat surface portion. A gutter cover comprising: a lid bottom portion extending below the portion; and a lid corner portion formed between the lid lower flat portion and the lid bottom portion; The convex portion or the round chamfered portion and the lid curved surface portion or the lid inclined surface portion are in line contact with each other, and a small gap is formed between the lower portion of the lid mounting portion and the lid lower flat surface portion. It is characterized by being confronted through The gutter structure according to the eighth aspect of the present invention is a gutter structure comprising the gutter body according to claim 1 or 2 and the gutter lid according to claim 3, wherein the convex portion or the upper surface of the lid mounting portion is provided. The round chamfered portion and the lid curved surface portion are in line contact with each other, and the lower portion of the lid mounting portion and the lid lower flat portion face each other via a minute gap. The gutter structure according to the ninth invention is a gutter structure comprising the gutter body according to claim 1 or 2 and a gutter cover according to claim 4, 5 or 6, wherein the convex shape of the lid mounting portion is provided. Or the round chamfered portion and the lid inclined surface portion are in line contact with each other, and the lower portion of the lid mounting portion and the lid lower flat surface portion are opposed to each other via a minute gap.

In the above inventions, the “substantially curved” means not only an arc shape (bently curved shape) but also a deformed shape such as a stepped bow shape as shown in FIG. It is used to include an inclined inverted V-shape and the like. The “line contact” refers to the line contact between the curved surface of the lid and the lid mounting portion of the gutter as shown in the eighth invention, and the line contact between the inclined surface of the lid and the lid mounting portion of the gutter as shown in the ninth invention. Not only the case of line contact but also other line contact modes can be adopted.

Further, as shown in the tenth invention, in the side groove structure, the lower portion of the lid mounting portion and the flat portion of the lower lid portion can face each other in a predetermined direction in parallel. The above “parallel” may be arranged so that two curved surfaces or planes are kept at equal intervals, and the inclination angle of both curved surfaces, the length of the interval, and the like are not particularly limited. Each of the above “planes” may be parallel, perpendicular, or inclined at an arbitrary angle with respect to each bottom surface, regardless of the degree of inclination, as long as the surface is a flat surface. The above-mentioned convex-shaped part should just be a convex-shaped continuous curved surface shape. Further, one or both ends may be linear. The degree of the curvature and the like can be appropriately selected according to the embodiment.

[0015]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the drawings based on embodiments. Example 1 Example 1 relates to a line contact type side groove structure in which the side surface of the groove of the side groove body and the side surface of the side groove cover have continuous curvature and are used in line contact with each other. FIG. 1 is a longitudinal sectional view showing a main groove structure, FIG. 2 is a front view of a gutter cover, FIG. 3 is a partially enlarged sectional view of a main part, FIG. 4 is a schematic bottom view of the gutter cover, and FIG. FIG. 6 is a schematic side view of the lid, and FIG. 6 is an explanatory view illustrating a state of bending in both directions.

The gutter structure according to the first embodiment includes a gutter body 1 and a gutter cover 8. As shown in FIGS. 1 and 3, the side groove body 1 has a pair of left and right side groove walls 2A and 2B, and a body bottom 7 provided so as to bridge the lower ends of the side groove walls 2A and 2B. Is provided. On the upper side of the inner surfaces of the side groove walls 2A and 2B, upper flat portions 2a and 2b, curved surface portions 3a and 3b continuously extending below the upper flat portions 2a and 2b, and There are provided lid mounting portions 4a and 4b extending continuously below the surface portions 3a and 3b, and lower flat portions 5a and 5b extending continuously below the lid mounting portions 4a and 4b.

The upper flat portions 2a and 2b are flat surfaces slightly inclined in the inward groove direction from the vertical. Further, each of the lid mounting portions 4a and 4b has a convex portion 41a and 41b formed of a convex curved surface, and a planar lid mounting portion provided below each of the convex portions 41a and 41b. Lower portions 42a and 42b are provided. Further, each of the lower flat portions 5a and 5b is a flat surface inclined downward in the side groove from horizontal. Although the lower flat portions 5a and 5b are formed as inclined surfaces in the first embodiment, they may be horizontal surfaces or curved surfaces.

As shown in FIG. 2 and FIGS. 4 to 6, the gutter lid 8 includes lid upper flat portions 9a and 9b provided above the side surfaces of the gutter lid main body, and the lid upper flat portions 9a and 9b. Lid curved surface portions 10a and 10b extending continuously downward, and lid lower flat surface portions 11a and 11b extending continuously below the respective lid curved surface portions 10a and 10b, and are connected to these. And a cover bottom portion 12 to be provided.

The lid upper flat portions 9a and 9b are flat surfaces slightly inclined in the inward groove direction from the vertical direction. When the main groove cover 8 is disposed in the side groove frame 1, the upper flat surface portions 2a and 2b are in contact with each other. They are arranged to be approximately parallel. The lid curved surface portions 11a and 11b are curved surfaces whose lower sides are curved inwardly of the gutter lid 8, and the degree of curvature is larger than the degree of curvature of each of the lid mounting portions 4a and 4b of the gutter frame body 1. It is arranged to be in contact. The lid lower flat portions 11a and 11b are flat portions arranged substantially vertically, and are substantially parallel to the lid lower portions 42a and 42b.

As shown in FIG. 4 and FIG. 6, the gutter lid 8 separates the lid lower flat portions 11a and 11b from both end faces (end faces not in contact with the gutter body) 13a and 13b. It is curved toward the center by the distance R (about 1 to 3 mm) toward the inside of the gutter cover 8 (toward the center lines 9a and 9b in FIG. 4). This curve is a continuous curved surface, and is symmetrical with respect to the center of the side surface of the gutter cover.

As shown in FIGS. 5 and 6, the cover bottom portion 12 extends from both end surfaces 13 a and 13 b of the gutter cover 8 toward the center thereof, toward the upper side of the gutter cover 8 (on the upper surface side of the gutter cover 8). ), And is curved by a distance S (about 1 to 3 mm). This curve is also a continuous curved surface, and is symmetrical with respect to the center of the gutter cover.

Further, lid corner portions Ea and Eb, which are portions where the respective ends of the lid lower plane portions 11a and 11b and the lid bottom surface portion 12 intersect, are chamfered so as to form a convex curved surface. By chamfering the lid corners Ea and Eb, the gutter lids jump up and the like, and even when they come into contact with the lower lid mounting portions 42a and 42b of the gutter frame body 1, they are less likely to be damaged. Reinforcing bars are arranged on the gutter 8 at predetermined positions (20 mm from the bottom surface, 8 mm from the curved surfaces of the curved portions 10a and 10b, and approximately 20 mm from the end surface 9a) (not shown). And this rebar is arranged on the line contact point P, and it has a structure excellent in strength.

The gutter frame 1 and the gutter cover 8 are formed by pouring a framework such as a reinforcing bar and concrete before hardening into a mold having a predetermined shape and hardening the concrete. It can be obtained by bending an iron steel plate or the like. At this time, since the shapes of the gutter frame 1 and the gutter cover 8 do not have sharp corners at narrow intervals, it is almost unnecessary to dispose a square material or the like by welding or the like in the mold, which is easy. And a low-cost mold can be created. Further, since the above-mentioned mold does not have a gap generated when a square member or the like is arranged in the mold, it is possible to suppress burrs generated when concrete flows into the gap.

The gutter structure obtained by placing the gutter cover 8 on the gutter body 1 has a structure as shown in FIGS. 1 and 3. That is, the upper flat portions 2a and 2b and the lid upper flat portions 9a and 9b are arranged to face each other with a predetermined gap G1. The lower lid portions 42a and 42b and the curved lid portions 10a and 10b face each other with a predetermined minute gap G2.

As shown in FIG. 3, the point of contact between the gutter frame 1 and the gutter cover 8 is a point P on the convex portions 41 a and 41 b of the lid mounting portion and the curved portions 10 a and 10 b of the lid. Are located close to the lid lower flat portions 11a and 11b, and therefore the inward and upward bending distances at the point P are almost the same as the respective bending distances (R and S) of the lid lower flat portions 11a and 11b. It is. In addition, since the lid lower plane portions 11a and 11b have a curved structure toward the center of the gutter lid 8 with respect to the front-rear direction of the gutter, and the lid mounting portion convex portions 41a and 41b are linear, the lid mounting portion is usually in the form of a lid. The convex portions 41a, 41b and the curved portions 10a, 10b are not in contact with each other, but are in contact only with the four corners on both ends 13a, 13b of the gutter. This contact area is a point contact or a short distance line contact.

In the gutter structure having such a configuration, when the gutter cover 8 is inserted into the gutter body 1, the lid curved surfaces 10 a and 10 b of the gutter cover 8 become convex portions of the lid mounting portion of the gutter body 1. Since it is curved with a degree of curvature smaller than the degree of curvature (curvature) of 41a, 41b, it comes into contact with a rounded substantially X-shaped shape at the lower end P (see FIGS. 3, 9, 14, and 15), and the lid is mounted. The gutter cover 8 is supported on the portion 8. For this reason, line contact can be reliably performed, and loss of the lid mounting portions 4a and 4b and the lid curved surface portions 10a and 10b can be prevented.

In a state where the gutter lid 8 is fitted into the gutter body 1 and no load other than its own weight is applied to the gutter lid 8, as shown in FIGS. 3, 5 and 6, In the lower part (point P) of the lid curved surface portions 10a and 10b of the gutter lid 8, first, four corners of the expected contact line portions make line contact or point-like contact with the curved surface portions 3a and 3b of the gutter frame 1. Thus, the intermediate portion is farther away from the curved surface portions 3a, 3b. The gutter lid 8 does not rattle because it is supported not at the 1-3 points but at the corners and at the 4 points (line contact portions). In this case, the contact portion shows a line contact, so that the wedge effect is excellent. In this state, when a load is further applied to the gutter lid 8 by the vehicle running on the gutter lid 8 and the like, the lid curved surface portions 10a and 10b of the gutter lid 8 are in line contact with the line contact portions. As a result, a wedge effect is produced in which the opposing lid mounting portions 4a and 4b are pushed down and settled, and bite more firmly to stop. As a result, only the four corners of the gutter body 1 and the gutter lid 8 are in contact with each other, but the contact lines increase toward the central part according to the load. Finally, all the contact lines come into contact. Even in this case, since line contact occurs, the wedge effect is excellent as in the case where there is no load. As described above, in any case, no rattling sound is generated due to the wedge effect.

The inclination angle between the upper flat portions 2a and 2b and the upper lid flat portions 9a and 9b of the gutter frame 1 and the gutter lid 8, and the difference in the degree of curvature between the curved surfaces 3a and 3b and the curved surfaces 10a and 10b. Due to the line contact and the degree of curvature between the lid mounting portions 4a and 4b and the curved curved surface portions 10a and 10b, the gutter lid 8 exhibits a wedge effect of biting downward in the lid mounting portions 4a and 4b. 8 is fixed so as to bite into the gutter frame 1 without rattling, so that the occurrence of noise pollution can be reliably avoided.

The lid lower flat portions 11a and 11b of the side groove lid 8 are located below the lower end P that makes line contact with the lower curved surface portions 4a and 4b of the side groove frame 1. Therefore, even if the wheel of the vehicle rides on the gutter 8 and a load is concentrated on a part of the gutter 8 and the gutter 8 tends to jump up, FIG. As shown in the figure, the lid corner portions Ea of the lid lower flat portions 11a and 11b collide with the opposing lower flat portions 4a and 4b and stop the movement. Can be. In addition, since the lid corner Ea is chamfered in a curved shape, loss due to collision can be prevented.

In addition, since there is a minute gap G1 between the lid upper flat portions 9a and 9b of the gutter lid 8 and the upper flat portions 2a and 2b of the gutter frame 1, sand and soil may enter between them. Even if there is, the opening and closing operation of the side groove cover 8 is facilitated by using the gap G1. A reinforcing member made of plastic, steel, or the like is provided in advance in a region having a predetermined width including the lower end P of the side groove body 1 in line contact and / or a curved surface portion 10a, 10b of the side groove cover 8 corresponding to the region. (Not shown), it is possible to reliably prevent abrasion or chipping at the line contact portion when the lid is closed.

Embodiment 2 The present embodiment 2 relates to a line contact type side groove structure in which the side surfaces of the groove of the side groove body and the side surface of the side groove cover are flat and used in line contact with each other. 7 is a longitudinal sectional view showing the present gutter structure, FIG. 8 is a front view of the gutter cover, FIG. 9 is a partially enlarged sectional view of a main part, and FIG. 10 is a schematic bottom view of the gutter cover.

In the second embodiment, the side groove body 1 ′ in which the curved surface portions 3 a, 3 b of the side groove body 1 shown in the first embodiment are inclined surfaces 3 a ′, 3 b ′, the lid curved surface portion 10 a of the side groove cover 8, And a side groove cover 8 ′ having a lid inclined surface portion 10 a ′ and 10 b ′. That is, as shown in FIGS. 7 and 9, the side groove frame 1 'is provided so as to span a pair of side groove walls 2A, 2B facing left and right, and a lower end of each of the side groove walls 2A, 2B. 7 is provided. On the upper side of the inner surfaces of the side groove walls 2A, 2B, upper flat portions 2a, 2b, and inclined surface portions 3a ', 3b' extending continuously below the upper flat portions 2a, 2b, A lid mounting portion 4a, 4b continuously extending below each of the inclined surface portions 3a ', 3b'; and a lower flat surface portion 5a, extending continuously below each of the lid mounting portions 4a, 4b, 5b. Further, each of the lid mounting portions 4a and 4b includes convex portions 41a and 41b formed of convex curved surfaces, and a lower portion of the flat lid mounting portion provided below each of the convex portions 41a and 41b. 42a and 42b.

As shown in FIGS. 8 and 9 to 10, the gutter lid 8 ′ has lid upper flat portions 9 a and 9 b provided above the side surface of the gutter lid main body, and the lid upper flat portions 9 a and 9 b. A lid inclined surface portion 10a ', 10b' extending continuously below 9b, and a lid lower flat surface portion 11a, which extends continuously below each of the lid curved surface portions 10a ', 10b'; 11b, and a planar lid bottom surface 12 'connected thereto.

Then, as shown in FIG. 10, the gutter lid 8 ′ has the lid lower flat portions 11 a, 11 b extending from both end surfaces 13 a, 13 b of the gutter lid 8 ′ to the center toward the inside of the gutter lid 8 ′. It is curved by a distance R (about 1 to 3 mm). Also in this case, as in the first embodiment, the bending distance at the contact point is almost the same as the bending distance of the lower lid flat portions 11a and 11b, and the bending is continuous and line-symmetric.

Further, the lid corner portions Ea ′ and Eb ′, which are portions where the respective ends of the lid lower plane portions 11a and 11b and the lid bottom surface portion 12 intersect, are chamfered in an inclined shape. Even at the lid corners Ea 'and Eb', the gutter lids jump up and the like, and when they come in contact with the lower lid mounting portions 42a and 42b of the gutter frame 1 ', breakage hardly occurs.

The gutter structure obtained by placing the gutter lid 8 ′ on the gutter body 1 ′ is, as shown in FIGS. 7 and 9, upper flat portions 2 a and 2 b and lid upper flat portions 9 a and 9 b. Are arranged so as to face each other with a predetermined gap G1, and the lid mounting portion lower portions 42a and 42b and the cover bending portions 10a 'and 10b' face each other with a predetermined minute gap G2.

Here, when the thickness of the side groove lid 8 is, for example, 100 mm, the widths (heights) of the upper vertical surface portions 2a, 2b and the lid upper flat surface portions 9a, 9b are both equal, for example, 30 mm. The lid inclined surface portions 10a 'and 10b' are formed longer than the inclined surface portions 3a 'and 3b'. The inclination angles of the inclined surfaces 3a 'and 3b' are, for example, 64 degrees between 40 and 80 degrees, and the inclination angles of the lid inclined surfaces 10a 'and 10b' are, for example, 65 degrees. Therefore, each of the lid mounting portion convex portions 41a and 41b and each of the lid inclined surface portions 10a 'and 10b' are in linear contact with each other at the contact portion P in a rounded substantially X-shape. The gutter lid 8 'is supported. Further, since the convex portions 41a and 41b of the lid mounting portions are curved surfaces, the loss of the lid mounting portions 4a and 4b and the lid curved surface portions 10a and 10b can be prevented.

Further, the height from the line contact portion P to the lower flat portions 5a and 5b is, for example, 11 mm, and the height from the line contact portion P to the lower surface of the side groove lid 8 'is 9 mm. Therefore, a gap G3 of 2 mm is left between the lower surface and the lower flat portions 5a and 5b. Here, the horizontal width of the lower flat portions 5a and 5b is, for example, 23 mm. The lid lower plane portions 11a and 11b extend so as to protrude downward by 3 mm from the lower ends of the lid inclined surface portions 10a 'and 10b'.

In the gutter structure having such a configuration, when the gutter cover 8 ′ is inserted into the gutter body 1 ′, the sloped surface portions 10 a ′ and 10 b ′ of the gutter cover 8 ′ are smaller than the inclination angle. The contact portions P support the inclined surfaces 3a 'and 3b' inclined at a small angle. Here, the effective thickness of the gutter cover 8 'up to the lower end P position of the gutter frame 1' with which the line contact is made is a thickness with which sufficient strength can be obtained, and the vehicle travels on this gutter cover 8 '. Even if you do, you will be able to withstand it.

Also in the second embodiment, the lid mounting portions 4a and 4b have convex portions, and the lid corner portions Ea and Eb are chamfered on the slope, so that each loss can be prevented. it can. In addition, the above-described line contact and the inclination angle between the lid inclined surface portions 10a 'and 10b' and the inclined surface portions 3a 'and 3b' cause one of these inclined surface portions 3a 'and 3b' to bite into the other. It has a wedge effect. Therefore, also in the second embodiment, similarly to the first embodiment, the gutter lid 8 does not rattle in the gutter frame 1 at all, and the occurrence of noise pollution can be reliably avoided. In addition, since the four corners support the line contact portions, the gutters do not rattle even before the load is applied, and depending on the load, the contact may occur at all the expected contact lines. Does not generate rattling sound due to the effect.

It should be noted that the present invention is not limited to the specific embodiments described above, but can be variously modified within the scope of the present invention according to the purpose and application. That is, in each of the first and second embodiments, the curved shape of the lid lower plane portion and the contact expected portion P of the gutter cover is continuous and line-symmetric, but is not limited thereto, and is discontinuous, for example, as shown in FIG. As shown in the figure, a step-like shape (four steps on both left and right) can be used. This step shape is not limited to the number shown in FIG. 11 and the length and height of each step, but can be variously changed depending on the purpose and the like. For example, only the four corners at both ends protrude and the others are concave (that is, it can be said to be a two-step shape). Even in the case of these two steps, the step length at both ends is relatively long, Alternatively, the number of stages may be four or more. In addition, as shown in FIG. 12, it is also possible to adopt a shape that is recessed in an inclined manner toward the center (inclined inverted V-shape). Further, the depth (R, S) of this curvature is also other than 1 to 3 mm, for example,. It may be about 0.5 mm or about 4 to 6 mm. If it is too large, it may not come into contact even when the load is applied.If it is too small, it will be difficult to manufacture it with high accuracy. It is not preferable because it may come into contact. Preferably, the curvature depth (R, S) is about 1 to 4 mm, more preferably about 1 to 3 mm. Further, the mode (kind) of the curvature may be other than the case shown in the first and second embodiments. That is, instead of curving in both directions (R and S) in the first embodiment, it can be curved in one direction (inward direction R or upward direction S), and only in the inward direction R in the second embodiment. Alternatively, there may be a curvature S towards the upper side and a curvature R, S towards both directions. 11 and FIG. 12 can be similarly applied to other embodiments.

Further, the upper flat portion and the lid upper flat portion may not be provided, and the lower portion of the lid mounting portion and the lower flat portion of the lid may be curved surfaces as well as flat surfaces. Even when the lower part of the lid mounting part and the flat part of the lower part of the lid are curved, if they are parallel to each other, it is useful to prevent the gutter lid from jumping up.

The lower flat portion and the lid lower flat portion may not only be vertical surfaces but may be inclined as shown in FIG. Further, as shown in FIG. 15, corners other than the corners of the lid can be chamfered. By doing so, it is possible to prevent dust and the like from sticking to the corner portions, and to prevent loss of each corner portion.

The area of a predetermined width including the lower end P of the side groove body 1 which is in line contact with the side groove body 1 and / or the curved surface portions 10a and 10b of the side groove cover 8 corresponding to the area are previously reinforced with plastic or steel material. By providing a member (not shown), it is possible to reliably prevent wear and dropout at the line contact portion when the lid is closed.

[0045]

[Effect of the invention]

 According to each gutter structure of the seventh or eighth invention, first, since the gutter cover has reliable wedge effect due to the convex-shaped portion of the lid mounting portion, the gutter cover may rattle. Absent. In addition, it is possible to prevent loss of the contact portion. Further, according to the respective gutter structures of the ninth and tenth inventions, the gutter cover has a rattling effect because the four corners of the gutter cover are surely in line contact with each other, have a wedge effect and are supported at four points. It doesn't make noises without doing anything. Further, when a load is applied to the gutter lid, line contact occurs at all the expected contact lines, and similarly, rattling noise is not generated due to the wedge effect.

According to the present side groove structure, a minute gap G2 is maintained between the lower portion of the lid mounting portion of the side groove body and the lower flat portion or the lower curved surface portion of the side groove cover. Is the lid corner provided at the lower part of the lower curved surface, when the wheel of the vehicle rides on the gutter lid, load is concentrated on a part of it and the lid corner faces the lid corner. The lower portion of the mounting portion is abutted against the lower portion, so that further jumping is prevented. Furthermore, in the case of a gutter structure using a gutter cover in which the curvature of both side surfaces of the gutter cover or the curvature of the bottom surface of the gutter is continuous or line-symmetric, the inner and / or upward directions may be changed depending on the load applied. The expansion of the line contact portion becomes continuous and smooth.

According to the respective groove structures of the first and second inventions, since the lid mounting portion having the convex portion is provided, the above-described useful effects shown in the respective groove structures can be secured. You. By using the gutters of the third to sixth inventions, the useful effects shown in the gutter structures can be secured.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a side groove structure according to a first embodiment.

FIG. 2 is a front view of a gutter according to the first embodiment.

FIG. 3 is an enlarged cross-sectional view showing a main part of the side groove structure shown in FIG. 1;

FIG. 4 is a schematic bottom view of the gutter shown in FIG. 2;

FIG. 5 is a schematic side view of the gutter shown in FIG. 2;

FIG. 6 is an explanatory view for explaining a state in which the gutter lid shown in FIG. 2 is curved in both directions.

FIG. 7 is a longitudinal sectional view showing a side groove structure according to a second embodiment.

FIG. 8 is a front view of a gutter according to the second embodiment.

9 is an enlarged cross-sectional view showing a main part of the side groove structure shown in FIG. 7;

FIG. 10 is a schematic bottom view of the gutter shown in FIG. 8;

FIG. 11 is a schematic side view of a gutter lid showing another bending mode (stepwise bending).

FIG. 12 is a schematic bottom view of the side groove cover showing another bending mode (inclined inverted V-shaped curve).

FIG. 13 is an enlarged cross-sectional view of a main part illustrating a state in which a side groove cover is prevented from jumping up in the side groove structure according to the first embodiment.

FIG. 14 is an enlarged schematic view of a gutter structure showing another aspect (a lower flat surface portion and a lower lid flat surface portion in an inclined parallel state).

FIG. 15 is an enlarged schematic view of a gutter structure showing another aspect (chamfered corners).

[Explanation of symbols]

1, 1 '; gutter frame, 2A, 2B; gutter wall, 2a, 2
b: upper flat portion, 3a, 3b; curved surface portion, 3a ', 3
b ': inclined surface portion, 4a, 4b; lid mounting portion, 41a, 41
b: lid mounting part convex part, 42a, 42b; lid mounting part lower part, 5
a, 5b; lower flat part, 6a, 6b; gutter wall part, 7; skeleton bottom part, 8, 8 '; gutter lid, 9a, 9b; lid upper flat part, 10a, 10b; lid curved surface part, 10a', 10
b ′: lid inclined surface portion, 11a, 11b; lid lower flat portion, 1
2; lid bottom, 13a, 13b; gutter lid end, Ea, E
b: lid corner, G1, G2, G3; minute gap.

Claims (10)

[Utility model registration claims] 1. A side groove body comprising a pair of opposed side groove walls and a frame bottom provided so as to bridge a lower end side of each of the side groove walls, wherein a curved surface portion or an upper side of an inner surface of the side groove wall is provided. An inclined surface portion, a lid mounting portion having a convex portion or a round chamfer portion at least at a distal end continuously extended below the curved surface portion or the inclined surface portion, and continuously extending below the lid mounting portion. A gutter body characterized by being provided with a lower plane portion or a lower curved surface portion provided. 2. The gutter structure according to claim 1, further comprising an upper flat portion extending continuously above the curved surface portion or the inclined surface portion. 3. A lid curved surface portion or a lid inclined surface portion, a lid lower flat portion extending below the lid lower surface portion, a lid bottom surface portion extending below the lid lower flat portion, and the lid lower flat portion. And a lid corner portion formed between the lid and the lid bottom surface portion, wherein the lid corner portion is chamfered or convex. 4. Both side surfaces of the gutter cover are curved from both end surfaces of the gutter cover to the center of both side surfaces toward the inside of the gutter cover, and the bottom surface of the gutter cover is centered from both end surfaces of the gutter cover. The gutter according to claim 3, further comprising at least one of: being curved toward the upper side of the gutter. 5. The gutter cover according to claim 4, wherein the curvature of both sides of the gutter cover or the curvature of the lid bottom surface is a continuous line-symmetric curved surface. 6. The side groove cover according to claim 4, wherein the curvature of the bottom surface of the cover has a stepwise shape that is line-symmetric with the center at the bottom. 7. The side groove body according to claim 1, a curved surface portion or a sloped inclined surface portion, a lower flat portion extending below the lower groove portion, and a lower flat portion extending below the lower flat surface portion. A gutter having a lid bottom portion, a lid lower flat portion, and a lid corner formed between the lid bottom portion, wherein the convex portion or the round chamfer of the lid mounting portion is provided. Part, the lid curved surface portion or the lid inclined surface portion is in line contact,
And a lower groove portion wherein the lower portion of the lid mounting portion and the flat portion of the lower lid portion face each other via a minute gap. 8. A gutter structure comprising: the gutter body according to claim 1 or 2; and the gutter cover according to claim 3, wherein the convex portion or the round chamfered portion of the lid mounting portion; A side groove structure in which a lid curved surface portion is in line contact, and a lower portion of the lid mounting portion and a lower surface portion of the lid are opposed to each other via a minute gap. 9. A gutter structure comprising the gutter body according to claim 1 or 2 and the gutter cover according to claim 4, 5 or 6, wherein the convex portion or the round chamfer of the lid mounting portion is provided. A side groove structure, wherein a portion and the lid inclined surface portion are in line contact with each other, and a lower portion of the lid mounting portion and the lid lower portion flat portion face each other via a minute gap. 10. The side groove structure according to claim 7, wherein the lower portion of the lid mounting portion and the flat portion of the lower lid portion face in parallel in a predetermined direction.