JP3811530B2 - Plastic U-shaped side groove - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plastic U-shaped side groove in place of concrete, and by integrally forming a rib for reinforcement on the outer surface of the side groove, it is lightweight and highly durable, and a U-shaped side groove. The joint structure that fits to each other at both ends is integrally formed to facilitate construction when connecting the side grooves .
[0002]
[Prior art]
For the U-shaped side groove, a concrete one has been conventionally used, but in recent years, a plastic one has been developed and used as disclosed in, for example, Japanese Utility Model Laid-Open No. 5-287793 or Japanese Patent Laid-Open No. 8-232334. It became so.
[0003]
[Problems to be solved by the invention]
The former plastic U-shaped side groove former (Japanese Utility Model Laid-open No. 5-287793) only has reinforcing ribs 20 extending along the U shape on the outside of the side groove main body. In addition, there is a disadvantage that the material consumption and weight are increased and the rigidity in the length direction is inferior.
[0004]
The latter (Japanese Patent Laid-Open No. 8-232334) has a double-side structure and can be reduced in weight compared to the former. However, a hollow portion is formed between the inner wall and the outer wall, and a vertical rib is disposed across the hollow portion. Therefore, there is a technical difficulty that it is difficult to integrally form.
Therefore, it has been a problem to be solved in this type of plastic U-shaped side groove to reduce the weight while improving the strength and increasing the durability.
[0005]
[Means for Solving the Problems]
Therefore, the present invention is provided with flanges projecting outside with appropriate widths on both upper edges of the side groove main body, arranged at both ends of the side groove main body and the outer surface at appropriate intervals in the length direction, and the upper ends thereof. Continuing to the back surface of the flange, a vertical rib is provided along the outer surface of the side groove body, and a bottom rib provided at a symmetrical position across the longitudinal rib along the length direction is provided on the bottom back surface of the side groove body. A lateral rib having an L-shaped cross section is provided in the middle of both outer side surfaces of the side groove main body, parallel to the flange, intersecting the longitudinal rib, along the length direction of the side groove main body, and having the tip bent downward. The inner surface of both upper edges of the main body is provided with a fitting recess for engaging the groove lid that opens inward at an appropriate interval along the length direction, and an upper end is provided between the vertical ribs. the transverse rib back surface is continuous, provided the auxiliary longitudinal ribs which intersect with the bottom rib, further groove One end of the body has a U-shape that is continuous with the inner surface of the gutter body, and is provided with a connecting projection that protrudes to an appropriate length in the length direction. The other end is continuous with the inner surface of the gutter body. And a U-shaped fitting recess with a U-shaped groove for packing fitting along the outer periphery of the U-shaped connecting projection to be fitted. The U-shaped side groove made of plastic provided with the above is provided.
[0006]
The U-shaped side groove includes a flange provided on both upper edges of the side groove main body, a vertical rib and a bottom rib provided on the outer surface and intersecting each other in the vertical and horizontal directions, and a horizontal rib having a L-shaped section by bending the tip downward. Because it is sufficiently reinforced, even if the thickness of the U-shaped side groove body is relatively thin, it has sufficient strength for use, making it even lighter and more durable than conventional plastic products. It can have a sex.
[0007]
In addition , the U-shaped side groove of the present invention is provided with fitting recesses for latching the groove cover that open inward on the inner surfaces of both upper edges of the side groove body, thereby preventing the slidable movement of the groove cover over the side groove. And stable coating. Further, by providing auxiliary vertical ribs that continuously intersect with the bottom ribs on the back surface of the horizontal ribs, the strength in the length direction and the transverse direction is further enhanced. Further, the one end of the groove, providing a connecting spigot of the U-shape, the other end portion, by providing a mating recess in the U-shaped comprising a groove in the U-shaped packing fitting, U-shaped groove since mutually fitted if the Hare joint structure at both ends of are integrally molded, it is easy to construction at the time of continuously arranged a gutter, it is also waterproof seam.
[0008]
【Example】
The U-shaped side groove of the present invention shown in FIG. 1 is made of plastic with each part integrally molded, and the side groove body 1 having a U-shaped cross section is provided at both upper edges of the body 1 and has an appropriate width on the outside. The protruding flange 2, both ends of the side groove main body 1, the vertical ribs 3 arranged on the outer surface at appropriate intervals in the length direction, and the vertical rib 3 between the outer side surfaces of the side groove main body 1 Crossing along the longitudinal direction of the side groove main body 1 and having a lateral rib 4 formed by bending the tip downward and forming an L-shaped cross section.
[0009]
Further, as shown in FIGS. 3A, 3B, and 3C, the bottom surface of the side groove body 1 crosses the longitudinal ribs 3 along the length direction so as to be in a symmetrical position on the bottom surface. A prepared bottom rib 5 is provided.
The vertical rib 3 has an upper end continuous with the back surface of the flange 2 along the outer surface of the lateral groove body 1, and the horizontal rib 4 and the bottom rib 5 intersect with each other with the same height.
[0010]
As described above, the flange 2, the vertical rib 3, the horizontal rib 4, and the bottom rib 5 that intersect with each other at the same height are arranged on both outer side surfaces and both end surfaces of the side groove body 1. The U-shaped side grooves are sufficiently reinforced by the flanges 2, the vertical ribs 3, the horizontal ribs 4 and the bottom ribs 5, so that the U-shaped side grooves 1 can be used even if the U-shaped side groove body 1 is relatively thin. It will have a certain strength.
[0011]
In this embodiment, recycled plastic of a plastic bottle, for example, is used as the material resin, and the thickness of each part is made approximately uniform to prevent sink after molding to about 4 mm, the total length is about 1016 mm, the total width is about 190 mm, and the total height is about Although it is 150 mm and weighs about 7 kg, it is optional to change the design and dimensions of each part as necessary, or to substitute materials with other plastics.
[0012]
Further, the U-shaped side groove of the present invention, as shown in the figure, is for retaining a groove lid that opens inward at an appropriate interval along the length direction on the inner surfaces of both upper edges of the side groove body 1. By providing the fitting recess 6, it is possible to prevent a loose movement of a groove lid (not shown) that covers the side groove and to perform stable coating.
[0013]
In addition, the U-shaped side groove of the present invention has an L-shaped cross section as shown in FIGS. 3 (a), 3 (b), and 3 (c), and as described above, the tip of the lateral rib 4 is bent downward. formed was or, as shown in FIGS. 1, 2 and 3, between each longitudinal ribs 3, intersect the bottom rib 5 by continuous top edge on the back surface of the transverse ribs 4, the vertical ribs 3, the horizontal By providing the auxiliary vertical rib 7 having the same height as the rib 4 and the bottom rib 5, the U-shaped side groove of the present invention can be further reinforced and rich in durability.
[0014]
Further, as shown in FIGS. 1, 2 and 3, one end portion of the side groove body 1 is formed in a U shape continuously with the inner surface of the side groove body and protrudes to an appropriate length in the length direction. the convex portion 8 is provided, at the other end, it forms a U-shape so as to fit the connecting spigot 8 of the U-shaped continuous to the inner surface of the gutter body 1, connecting spigot of the U-shaped fitting A joint structure which is provided with a fitting recess 9 having a U-shaped groove 10 for packing fitting along the outer periphery of the U-shaped side groove so as to be fitted to each other and continuous with each other is integrally formed. By doing so, it is possible to facilitate construction when the side grooves are continuously provided, and to be able to waterproof the seam.
[0015]
【The invention's effect】
As described above, according to the present invention, on the outside of the gutter body forming a U-shaped, flanges and vertical, horizontal, vertically and horizontally the ribs of the bottom, and, since the integrally molded by intersecting each other, with rich rigid Not only can it provide a plastic U-shaped side groove that has the required strength enough, can be reduced to the maximum weight, and is easy to be integrally molded, but at one end of the side groove body, the inner surface of the side groove body A U-shaped connection convex part that protrudes to an appropriate length in the length direction is provided, and the U-shaped connection convex part is fitted to the inner surface of the gutter body at the other end. A U-shaped fitting recess is provided with a U-shaped groove for packing fitting along the outer periphery of the U-shaped connecting convex portion to be fitted, and both ends of the U-shaped side groove are connected to each other. Since the joint structure that can be fitted and continuous is integrally formed, when side grooves are connected continuously It is possible to facilitate the construction of the seam and to make the seam waterproof.
The present invention has excellent effects as described above.
[Brief description of the drawings]
1 is a perspective view showing an embodiment. FIG. 2A is a partially cutaway side view of the embodiment, and FIG. 1B is a partially cutaway plan view of the embodiment. (a) is a-a 'cross-sectional view, (b) the B-B' in FIG. 2 a cross-sectional view, (c) is a C-C 'cross section.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side groove body 2 Flange 3 Vertical rib 4 Horizontal rib 5 Bottom rib 6 Fitting recessed part 7 Auxiliary vertical rib 8 Connecting convex part 9 Fitting recessed part 10 Packing fitting groove

Claims (1)

Flange projecting with an appropriate width is provided on both upper edges of the side groove main body, arranged at both ends of the side groove main body and the outer surface at appropriate intervals in the length direction, and the upper end is continuous with the back surface of the flange. A vertical rib along the outer surface of the side groove body, and a bottom rib provided in a symmetrical position across the longitudinal rib along the length direction on the bottom rear surface of the side groove body. In the middle of the side surface, there is provided a lateral rib having an L-shaped cross section that is parallel to the flange, intersects with the longitudinal rib, extends along the length direction of the side groove body, and is bent downward at the tip , and both upper edges of the side groove body A fitting recess for engaging the groove lid that opens inward at an appropriate interval along the length direction is provided on the inner surface of the horizontal rib, and an upper end is provided between the vertical ribs on the back surface of the horizontal rib. An auxiliary vertical rib that intersects with the bottom rib, and is further provided with one end of the gutter body. The U-shaped connection is formed in a continuous U-shape on the inner surface of the side groove body, and provided with a connecting convex portion protruding to an appropriate length in the length direction. A U-shape is formed so as to fit the convex portion, and a fitting concave portion having a U-shaped groove for packing fitting is provided along the outer periphery of the U-shaped connecting convex portion to be fitted. plastic U-shaped groove to.

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