JP6815907B2 - Groove lid - Google Patents

Description

The present invention relates to, for example, a groove lid (grating) laid so as to cover a drainage ditch provided around a poolside, a large bathtub, a resort facility, an amusement park, a park, a school building, etc., and in particular, a synthetic resin. It relates to a groove lid formed into a long shape by continuous injection molding.

As a groove lid covering the drainage groove formed around the large poolside bathtub, for example, as shown in Patent Document 1 (Japanese Unexamined Patent Publication No. 2013-14918), a strip-shaped main bar made of synthetic resin or the like is used. It is known that the (main girder material) is configured by connecting two places in the width direction with a joint. Further, in Patent Document 2 (Japanese Unexamined Patent Publication No. 2007-314998), a strip-shaped main bar (main girder material) and a joint are integrally configured by using a relay molding method in which injection molding is repeated. It is disclosed.

As described above, these groove lids are laid by mounting and supporting both ends of the main girder member on the stepped receiving portions formed at the upper ends of the opposite side walls of the drainage groove. In addition, since the main girders are connected by flexible joints, the number of main girders connected by the joints can be adjusted, or the length can be freely adjusted by cutting to the required length. In addition, the curved portion of the groove can be bent within a certain range by advancing and retreating the joint, so that it is possible to flexibly deal with it.

Japanese Unexamined Patent Publication No. 2013-14918 JP-A-2007-314998 Japanese Unexamined Patent Publication No. 2014-20074

However, the groove lid of Patent Document 1 requires troublesome assembling work for connecting the main girder members to each other, and the labor of manufacturing is complicated.

In addition, in the conventional groove lid, since the main girder material is formed in a strip shape, the water overflowing from the pool passes over the groove lid at once without falling into the drainage groove and overflows to the outside of the groove lid as it is. Such troubles may occur. In such a case, if the site is covered with tiles, the overflowing water makes it slippery, which may cause a fall.

Further, since the main girder members are provided in parallel in the groove lid, in the T-shaped groove, the two groove lids are laid with the orientation changed by 90 degrees. However, in this laying method, At the boundary between the two groove lids, the arrangement directions of the main girders intersect, which is not aesthetically pleasing.

On the other hand, as in Patent Document 3 (Japanese Unexamined Patent Publication No. 2014-20074), a groove lid composed of a single plate-shaped main body and having through holes penetrating in the thickness direction of the plate-shaped main body arranged in a grid pattern. Is also known. With this groove lid, it is easy to drop overflow into the groove from the through holes provided in a grid pattern on the plate-shaped body, and even if the arrangement direction is different, the arrangement direction of the boundary portion can be the same. it can.

However, since the groove lid having this configuration is composed of a plate-shaped main body, there is a problem that it cannot be curved and cannot cope with the curvature of the groove.

Therefore, the technical problem to be solved by the present invention solves the above-mentioned problems, makes it easy for overflow to fall into the groove, can cope with a curved groove, and is aesthetically pleasing. Is to provide.

The present invention provides a groove lid having the following configuration in order to solve the above technical problems.

According to the first aspect of the present invention, a groove lid made of synthetic resin covering the groove, in which a plurality of main girders arranged in the longitudinal direction of the groove are connected to each other at a first arrangement interval. hand,
The main girder material is
A support leg that is composed of a pair of ribs arranged so as to stand upright in the longitudinal direction of the groove and is mounted and supported on the edge of the groove.
A top surface portion composed of a plurality of plate-shaped members arranged on the upper surface of the support leg portion at a second interval in the width direction of the groove and protruding in the longitudinal direction of the groove with respect to the support leg portion. ,
A joint portion composed of a flexible member having a U-shaped cross section, both ends of which are connected to a part of the plate-shaped members to connect adjacent main girder members, and a joint portion.
Provided is a groove lid, characterized in that the lid is integrally configured.

According to the second aspect of the present invention, the plate-shaped member constituting the top surface portion has a rectangular shape, the second arrangement interval is substantially equal to the first arrangement interval, and the plate-like member is in a grid pattern. Provided is a groove lid of the first aspect, characterized in that it is arranged.

According to the third aspect of the present invention, the plate-shaped member constituting the top surface portion has a drainage hole opened between a pair of the support leg portions, and the groove lid of the first or second aspect is provided. I will provide a.

According to the fourth aspect of the present invention, a groove lid according to any one of the first to third aspects is provided, wherein an annular convex portion is provided on the surface of the plate-shaped member constituting the top surface portion. provide.

According to the fifth aspect of the present invention, a main girder unit containing at least one main girder material is formed as one unit by a fixed mold and a movable mold, and then moved to feed the main girder unit, which are adjacent to each other in the mold. By repeating the process of fusing and integrating the joint portions of the main girder members of the main girder unit, and forming a plurality of the main girder units in sequence, the main girder units are formed in a long shape by a relay forming method. Provided is a groove lid according to any one of the first to fourth aspects.

According to the groove lid of the present invention, since the plate-shaped members of the top surface portion are arranged at predetermined first and second intervals in the longitudinal direction and the width direction of the groove, between the top surface portions per unit length. The gap area formed in is expanded. Therefore, it is more likely to fall into the groove when water overflows than the conventional groove lid in which the main girder material is formed in a strip shape. Further, the support leg portion, the top surface portion, and the joint portion constituting the main girder material are integrally formed, so that the work of connecting the main girder material is not required, and the labor for manufacturing is reduced. Further, since the joint portion is configured in a flexible U shape, the first interval can be arbitrarily adjusted by expanding and contracting the joint portion, and it is possible to cope with a curved groove. it can.

Therefore, if the groove lid according to the present invention is laid in, for example, a side groove of a pool, the overflow can be reliably dropped into the groove, and the water passes over the groove lid at once and overflows to the outside of the groove lid. Can be effectively prevented.

It is a perspective view which shows the appearance structure of the groove lid which concerns on embodiment of this invention as seen from the surface side. It is a perspective view which shows the appearance structure of the main girder material of the groove lid of FIG. 1 seen from the surface side. It is a perspective view which shows the appearance structure of the main girder material of the groove lid of FIG. 1 seen from the back surface side. It is a top view which shows the structure of the main girder material of the groove lid of FIG. It is sectional drawing in the VV line of FIG. It is a top view which shows the state which two groove lids are installed in the T-shaped groove. It is sectional drawing of the main girder material of the groove lid of FIG. 1 which shows the state which expanded and contracted the joint part. It is a perspective view of the groove lid laid on the poolside. It is a state transition diagram for schematically explaining the relay molding.

Hereinafter, the groove lid according to the embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an external configuration of the groove lid according to the embodiment of the present invention as viewed from the surface side, FIG. 2 is a perspective view showing an external configuration of the main girder material of the groove lid as viewed from the surface side, and FIG. , It is a perspective view which shows the appearance structure which looked at the main girder material of a groove lid from the back surface side. FIG. 4 is a plan view of the main girder member, and FIG. 5 is a cross-sectional view taken along the line VV of FIG.

As shown in these figures, the groove lid 1 of the present embodiment is made of synthetic resin, and a plurality of main girder members 2 arranged in the longitudinal direction of the groove 100 are spaced apart from each other in the longitudinal direction. They are connected to each other. The groove lid 1 of the present embodiment is laid by mounting and supporting both end portions of the main girder member 2 in the width direction on a stepped receiving portion 102 formed at the upper ends of both side walls 101 in the width direction B of the groove 100. ..

The groove lid 1 according to the present embodiment can be formed by a relay molding method, and the main girder members 2 have a substantially U-shaped joint portion 3 formed in a U-shaped flexible thin wall shape. Connected via. Adjacent main girders 2 are connected with a longitudinal gap G1 as shown in FIG. The longitudinal gap G1 is a gap between adjacent main girder members 2 in a normal state, and is changed by applying an external force to deform the flexible joint portion 3, as will be described later.

The main girder member 2 is composed of a pair of ribs 4a arranged so as to face each other in the longitudinal direction of the groove 100, and is supported by a stepped receiving portion 102 of the groove 100. On the upper surface of the upper surface 4 of the support leg portion, a top surface portion 5 composed of eight plate-shaped members 5a arranged with a gap in the width direction B of the groove 100 is integrally formed.

The plate-shaped ribs 4a constituting the support leg portion 4 have a width dimension corresponding to the width of the groove 100, and are provided at a predetermined interval D. The thickness of the rib 4a is not particularly limited, but it may be appropriately designed according to the strength capable of withstanding the load applied to the groove lid 1.

In the present embodiment, the top surface portion 5 is configured by arranging eight plate-shaped members 5a in the width direction with a width direction gap G2. In the present embodiment, the width direction gap G2 is configured to be substantially the same as the longitudinal direction gap G1, and the plate-shaped members 5a of the groove lid 1 in the normal state are arranged in a grid pattern.

As shown in FIG. 4, the plate-shaped member 5a is a square with rounded corners in a plan view, and a drain hole 6 is provided in a central portion. The drain hole 6 is for pouring water on the surface of the top surface portion 5 into the groove 100, and the back surface side is opened between the ribs 4a of the support leg portion 4.

Further, on the surface of the plate-shaped member 5a, an annular convex portion 7 is provided around the drain hole 6. The annular convex portion 7 is for guiding the water overflowing on the surface of the plate-shaped member 5a to the drain hole 6 and the surrounding gaps (longitudinal gap G1, width direction gap G2), and the top surface portion. It also has a function as a non-slip of 5.

Further, the plate-shaped member 5a of the top surface portion 5 has a structure that protrudes in the longitudinal direction of the groove from the rib of the support leg portion 4, and the ribs 4a of the support leg portions 4 of the adjacent main girder members 2 are close to each other. Instead, the ribs 4a of the support legs are arranged with substantially even gaps.

According to the groove lid 1 having the above configuration, since the area of the gap per unit length in the width direction of the groove 100 is expanded, the groove lid 1 is more than the conventional groove lid in which the main girder material is made of a plate-shaped member. It is easy to drop the overflowing water into the groove.

Further, in the top surface portion 5 exposed to the surface during use, the plate-shaped members 5a are arranged in a grid pattern with equal gaps in the width direction and the longitudinal direction. Therefore, as shown in FIG. 6, the lengths of the two grooves are long. Even when the groove lids 1 are placed in the T-shaped grooves 100 whose directions intersect, the arrangement of the plate-shaped members 5a is uniform, and the appearance can be aesthetically pleasing.

The joint portion 3 is composed of a U-shaped flexible member that connects the plate-shaped members 5a near both ends in the width direction of the main girder member 2, and is adjacent to each other by being extended as shown in FIG. The longitudinal clearance G1 of the main girder member 2 can be changed. That is, in the place where the groove is bent, the groove lid 1 can be bent like a bellows, and it can be laid corresponding to the groove.

Therefore, if such a groove lid 1 is laid in a gutter or the like of the pool P, for example, as shown in FIG. 8, overflow can be dropped into the groove 100, and water can pass over the groove lid 1 at once. It is possible to effectively prevent the groove lid 1 from overflowing to the outside. Regarding the bent portion 100a of the groove, the joint portion 3 can be extended and the groove lid can be bent according to the curvature of the groove 100 for use.

Further, when adjusting the length of the groove lid 1 according to the length of the groove 100, the length can be adjusted by cutting the joint portion 3 and removing the main girder member 2. Further, when the length of the groove 100 is not reached by removing the main girder member 2, the groove lid 1 can be expanded and contracted in the longitudinal direction and attached to the groove 100 to have an arbitrary length.

Next, the basic flow of relay molding for molding the groove lid 1 according to the present embodiment will be described. FIG. 9 is a state transition diagram for schematically explaining relay molding. Since the groove lid according to the present embodiment has a complicated structure, it is molded by combining a plurality of molds. However, for the sake of understanding the explanation below, the fixed mold 11 and the movable mold 12 The case where the above two are used will be schematically described.

First, as shown in FIG. 9A, the fixed mold 11 and the movable mold 12 formed in advance in a desired shape are closed, and in that state, the material cast formed on the movable mold 12 side. The molten resin is injected from the outlet 13 into the cavity 14 formed by each of the molds. In the present embodiment, the two main girders 2 are used as one molding unit, and the mold 10 is provided with a cavity 14 into which the molten resin is fed and an accommodating portion 15 for accommodating the molded unit described later. ing. As a result, as shown in FIG. 9B, a molded unit 20 made of synthetic resin corresponding to the mold is formed.

Next, as shown in FIG. 9 (c), after the movable mold 12 is released from the fixed mold 11, the already molded unit 20 is molded as shown in FIG. 9 (d). It is moved to a position located in the accommodating portion 15 of the unit 20. After that, the mold is closed again, and the molten resin is injected again from the material injection port 13.

The molded unit 20 existing in the accommodating portion 15 is partially melted by the material injected into the cavity 14, so that the next molded unit (not shown) is continuous behind the molded unit 20. It will be molded into a state. That is, at the same time as molding the molding unit, the high end portion of the molded unit 20 existing in the accommodating portion is fused and integrated with the front end portion of the molding unit, so that the front molded unit 20 and the rear molding unit are combined. , Will be fused at the joint end. When it is formed into a long shape by the relay molding method, it is not necessary to connect the main girders 2 to each other at the site, and the number of parts is small, so that it can be provided at low cost.

As described above, the groove lid 1 according to the present embodiment is preferably formed in a long shape by, for example, a relay molding method, but the joint portion 3 of the molded main girder member 2 is connected to another main girder member. You may.

As described above, in the groove lid 1 according to the present embodiment, since the plate-shaped members of the top surface portion are arranged at predetermined intervals in the longitudinal direction and the width direction of the groove, the top surface portion per unit length The gap area formed between them will be expanded. Therefore, it is more likely to fall into the groove when water overflows than the conventional groove lid in which the main girder material is formed in a strip shape. Further, the support leg portion, the top surface portion, and the joint portion constituting the main girder material are integrally formed, so that the work of connecting the main girder material is not required, and the labor for manufacturing is reduced. Further, since the joint portion is configured in a flexible U shape, the first interval can be arbitrarily adjusted by expanding and contracting the joint portion, and it is possible to cope with a curved groove. it can.

The present invention is not limited to the above embodiment, and can be implemented in various other aspects. For example, in the above embodiment, the plate-shaped member constituting the top surface portion 5 is formed in a square shape, and eight pieces are arranged in the groove direction, but it can also have another shape such as a hexagon. It is also possible to change the number of plate-shaped members 5a according to the groove width. Further, the shape and number of drain holes provided in one plate-shaped member 5a can be arbitrarily designed.

1 Groove lid 2 Main girder 3 Joint part 4 Support leg part 4a Rib 5 Top surface part 5a Plate-shaped member 6 Drainage hole 7 Circular convex part 10 Mold 11 Fixed mold 12 Movable mold 13 Material injection port 14 Cavity 20 Molded Unit 100 Groove 101 Side wall 102 Stepped receiving part

Claims (4)

A groove lid made of synthetic resin covering the groove, in which a plurality of main girders arranged in the longitudinal direction of the groove are connected to each other at a first arrangement interval.
The main girder material is
A support leg that is composed of a pair of ribs arranged so as to stand upright in the longitudinal direction of the groove and is mounted and supported on the edge of the groove.
A top surface portion composed of a plurality of plate-shaped members arranged on the upper surface of the support leg portion at a second interval in the width direction of the groove and protruding in the longitudinal direction of the groove with respect to the support leg portion. ,
A joint portion composed of a flexible member having a U-shaped cross section, both ends of which are connected to a part of the plate-shaped members to connect adjacent main girder members, and a joint portion.
A groove lid characterized by being integrally configured. The plate-shaped members constituting the top surface portion have a rectangular shape, the second arrangement interval is substantially equal to the first arrangement interval, and the plate-like members are arranged in a grid pattern. The groove lid according to claim 1. The groove lid according to claim 1 or 2, wherein the plate-shaped member constituting the top surface portion has a drainage hole that opens between a pair of the support leg portions. The groove lid according to any one of claims 1 to 3, wherein an annular convex portion is provided on the surface of the plate-shaped member constituting the top surface portion.

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