JP7409632B2 - Lid for underfloor storage or inspection port - Google Patents

Description

The present invention relates to a lid for an underfloor storage or an inspection port.

Conventionally, a lid used to close an opening of an underfloor storage or an inspection port has a heat insulating material inside the lid in order to block cold air from outside.
This type of lid body equipped with a heat insulating material inside consists of a front side member of the lid body, a back cover that is open at the top and bulged at the bottom, and a heat insulating material placed inside the back cover. The structure is such that the members are assembled using fastening means such as bolts and screws (see, for example, Patent Document 1).

By the way, in the lid body of Patent Document 1, the front side member has supporting strength, and the back side cover is provided simply to cover the heat insulating material.
For this reason, the above-mentioned lid body is difficult to handle due to restrictions on the front side members that can be used, and because the back cover with an open top is attached directly to the front side member, its insulation performance is low, making it particularly suitable for cold regions. In order to do this, it is necessary to place a lot of heat insulating material inside, which increases the thickness and weight of the lid, making it inconvenient to handle. However, there was a problem in that the storage space of the storage box was eroded, making it impossible to secure sufficient storage space.

In order to deal with this problem, the applicant previously proposed a lid body in which the internal structure, in which the heat insulating material is partitioned by reinforcing ribs, is covered with an outer shell made of thermoplastic resin by blow molding ( (See Patent Document 2.)

The lid body of Patent Document 2 is lightweight and easy to handle, and has the advantage of having sufficient heat insulation performance, but on the other hand, it is time-consuming to manufacture, increases manufacturing costs, and has restrictions on the shape that can be formed. There was a problem in that it was difficult to form screw holes for fixing the front side member and an attachment part for the rotating handle.

JP2003-213923A JP2013-72198A

The present invention can solve the problems of the conventional lid described above, can reduce the thickness of the lid while having a certain level of heat insulation performance, and is lightweight and easy to handle. The purpose is to provide a lid body for.

In order to achieve the above object, the lid for an underfloor storage or an inspection port according to the present invention is a lid that is formed by integrating a front side member and a backside member, which is used to close the opening of an underfloor storage or an inspection door. In this case, the back side member is arranged in a space formed by combining an upper surface portion made of a synthetic resin material, a lower surface portion with a bulged downward part, and the upper surface portion and the lower surface portion. The reinforcing rib portion has a lattice structure or a honeycomb structure, and the upper surface portion, the lower surface portion, and the reinforcing rib portion are integrated.

In this case, the integration may be performed by welding or adhesion.

Further, the reinforcing rib portion may be integrally molded with the upper surface portion or the lower surface portion.

Further, the front side member may be attached to the upper surface of the back side member via an adhesive layer.

Moreover, a projection for regulating the position of the front side member may be formed on the surface of the upper surface portion of the back side member.

Further, the mounting surface of the packing mounting portion is formed on the back surface of the lower surface portion of the back side member as an inclined surface with different heights at least on the inner circumferential side and the outer circumferential side of the corner portion. I can do it.

According to the lid for an underfloor storage or inspection port of the present invention, of the lid formed by integrating the front side member and the back side member, the back side member is formed of an upper surface portion made of a synthetic resin material; It has a lower surface part with a bulged lower part, and a reinforcing rib part with a lattice structure or a honeycomb structure arranged in a space formed by combining the upper surface part and the lower surface part, and the upper surface part, the lower surface part and By integrating the reinforcing rib portions, the space of the back side member is divided by the reinforcing rib portions having a lattice structure or honeycomb structure. By increasing the strength, the thickness of the lid can be reduced, making it lightweight and easy to handle.

Moreover, by making the integration by welding or adhesion, manufacturing is easy and manufacturing costs can be reduced.

Further, by integrally molding the reinforcing rib portion with the upper surface portion or the lower surface portion, manufacturing is easy and the strength can be further improved.

Furthermore, by attaching the front member to the upper surface of the back member via an adhesive layer, it is possible to easily match the joints and patterns between the flooring material and the front member. .

Further, by forming a protrusion on the surface of the upper surface of the back side member for regulating the position of the front side member, the upper surface of the back side member and the front side member can be easily aligned. In addition, it is possible to prevent front side members having different sizes and shapes from being erroneously attached.

Further, the mounting surface of the packing mounting portion is formed on the back surface of the lower surface portion of the back side member as an inclined surface with different heights at least on the inner circumferential side and the outer circumferential side of the corner portion. This prevents the packing from twisting or wrinkling at the corner portions, and improves the fitability and airtightness of the packing.

An embodiment of the back side member of a cover for an underfloor storage or an inspection port according to the present invention is shown, in which (a) is a plan view and (b) is a vertical sectional view showing an example applied to an underfloor storage. The upper surface part of the back side member of the lid body for the same storage or inspection port is shown, (a) is a top view, (b) is a front view, and (c) is a bottom view. It shows the integrally molded lower surface part and reinforcing rib part of the back side member of the lid body for the storage or inspection port, and (a) is a plan view, (b) is a front view, and (c) is a bottom view. . It is a perspective view showing the lower surface part and the reinforcing rib part integrally molded with the upper surface part of the back side member of the lid body for the same storage or inspection port. It is a perspective view showing the back side member of the lid for the same storage or inspection port. It is a top view of the integrally molded lower surface part and reinforcing rib part which shows the welding part of the back side member of the lid body for the same storage or inspection port. 3(a) is a sectional view taken along line A-A in FIG. 3(c), and FIG. FIG. An embodiment of the lid for an underfloor storage or inspection port according to the present invention is shown, in which (a) is a plan view and (b) is a vertical sectional view showing an example applied to an underfloor inspection port.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a lid for an underfloor storage or an inspection port according to the present invention will be described based on the drawings.

1 to 8 show an embodiment of the lid for an underfloor storage or inspection port of the present invention.
This lid 1 for an underfloor storage or inspection port is made by integrating a front side member 2 and a backside member 3, which are used to close the opening of the underfloor storage or inspection port. An upper surface part 31 formed of a synthetic resin material such as a polyolefin resin such as a polypropylene resin, an ABS resin, or a vinyl chloride resin, and a lower surface part 32 having a bulged downward part, and the upper surface part 31 and the lower surface part 32 are combined. A reinforcing rib part 33 having a lattice structure (or honeycomb structure) arranged in a space formed by It is.

In this case, the upper surface part 31, the lower surface part 32, and the reinforcing rib part 33 can be integrated by friction welding, heat welding, or adhesive bonding of the separate parts.
Thereby, manufacturing is easy and manufacturing costs can be reduced.

Moreover, the upper surface part 31, the lower surface part 32, and the reinforcing rib part 33 may all be constructed separately, or the reinforcing rib part 33 may be integrally molded with the upper surface part 31 or the lower surface part 32. I can do it.
Thereby, manufacturing is easy and strength can be further improved.

More specifically, in this embodiment, the reinforcing rib portion 33 is integrally molded with the lower surface portion 32, and the upper surface portion 31, the lower surface portion 32, and the reinforcing rib portion 33 are integrated by friction welding or heat welding. I try to do that.
Here, the upper surface part 31, the lower surface part 32, and the reinforcing rib part 33 are the hatched parts in FIG. Since the reinforcing rib portion 33 is integrated by welding, the space between the ribs of the reinforcing rib portion 33 is sealed, and the heat insulation and strength are further improved.

Here, there are no particular restrictions on the shape that the upper surface portion 31, the lower surface portion 32, and the reinforcing rib portion 33 can be formed into.
Then, if necessary, screw holes 31a and 32a can be formed in the upper surface part 31 and the lower surface part 32, which also serve for positioning (preventing errors in the combination direction).
Further, if necessary, a protrusion 31b is provided on the surface of the upper surface part 31 for regulating the position of the front side member 2, and a protrusion 31b is provided on the back surface for alignment with the lower surface part 32 and the reinforcing rib part 33. 31c can be formed respectively.
Further, mounting portions 31d and 32d of the rotary handle 7 are formed on the upper surface portion 31 and the lower surface portion 32, respectively, and the position of the front side member 2 is further formed around the outer circumference of the mounting portion 31d of the rotary handle 7 on the upper surface portion 31. A protrusion 31e for regulation can be formed.
In this way, by forming the projections 31b and 31e on the upper surface part 31 for regulating the position of the front side member 2, alignment with the front side member 2 can be easily performed, and the dimensions and It is possible to prevent front side members 2 having different shapes from being incorrectly attached.

Further, as shown in FIGS. 3(c) and 7, a packing mounting portion 34 is formed in the shape of a circumferential groove on the back surface of the lower surface portion 32 of the back side member 3.
This packing mounting part 34 is composed of a straight part 34a and a corner part 34b, and the mounting surface on which the packing 35 of the packing mounting part 34 is mounted is formed into an inclined surface with different heights on the inner circumferential side and the outer circumferential side. That's what I do.
Here, the portion formed on the inclined surface is at least the corner portion 34b (in this embodiment, the entire packing mounting portion 34 consisting of the straight portion 34a and the corner portion 34b). (The straight portion 34a can also be formed on a horizontal surface.)
Further, the inclined surface may be formed as a downwardly inwardly inclined surface as in this embodiment, or may be formed as a downwardly outwardly inclined surface.
A packing 35 having a substantially rectangular cross section is continuously attached to the packing mounting portion 34 from the straight portion 34a to the corner portion 34b.
In this way, by forming the mounting surface of the packing mounting portion 34 into an inclined surface, the inner and outer circumferential sides of the packing 35 mounted on the packing mounting portion at the corner portions of the packing mounting portion formed in the shape of a circumferential groove are formed. The difference in expansion and contraction can be reduced, the packing 35 can be prevented from twisting or wrinkling at the corner portion 34b, and the fitability and airtightness of the packing 35 can be improved.

In the embodiment shown in FIG. 1, gaps are formed between the ribs of the reinforcing rib portion 33, but it is also possible to fill the space between the ribs of the reinforcing rib portion 33 with a heat insulating material such as foamed resin, glass wool, rock wool, etc. It can also be done.

According to this lid body 1 for an underfloor storage or inspection port, of the lid body 1 formed by integrating the front side member 2 and the back side member 3, the rear side member 3 is made of a synthetic resin material. a reinforcing rib part 33 having a lattice structure (or honeycomb structure) arranged in a space formed by combining the upper part 31 and the lower part 32; By integrating the upper surface part 31, the lower surface part 32, and the reinforcing rib part 33, the space of the back side member 3 can be formed by the reinforcing rib part 33 having a lattice structure (or honeycomb structure). By partitioning, the thickness of the lid 1 can be reduced by increasing the strength of the back side member 3 while maintaining a certain level of heat insulation performance (in the embodiment shown in FIG. 1, for example, the thickness of the back side member 3 can be reduced). The dimensions can be set to, for example, about 20 to 30 mm, and the thickness of the lid 1 can be set to, for example, about 40 mm), making it lightweight and easy to handle.
Furthermore, as shown in FIG. 1(b), the storage space of the storage box 4 of the underfloor storage is not eroded, and a sufficient storage space can be secured.

As shown in FIG. 8, this back side member 3 is combined with a front side member 2 made of the same material as the floor material F, for example, like the conventional lid 1 for an underfloor storage or an inspection port, and screw holes 31a, 32a By assembling using fastening means such as screws (not shown) and the frame member 5, the lid body 1 is used by being fitted into the frame member 6 of the opening formed in the floor surface (floor material F). can do.

In this case, since the same material as the flooring material F is used for the front side member 2, the thickness of the flooring material F is adjusted according to the thickness of the flooring material F (generally, in addition to flooring materials of 12 mm or 15 mm, there are cushion floor materials of about 2 mm, etc.). The thickness dimension of the back side member 3 is changed.
This change in the thickness of the back side member 3 can be handled by using the top part 31 with a different thickness, which eliminates restrictions on the front side member 2 that can be used, and also allows the bottom part 32 and reinforcing ribs to be changed. The portion 33 can be made common.

By the way, when assembling the front side member 2 to the back side member 3, an adhesive layer is formed on the surface of the upper surface part 31 of the back side member 3 using double-sided tape or the like, and the joint between the flooring material F and the front side member 2 is bonded through this adhesive layer. The front member 2 can be attached by matching or pattern matching.
In this case, fastening means such as screws (not shown) and the frame member 5 can be used together.
Thereby, the joints and patterns of the floor material F and the front member 2 can be easily matched.

Above, the underfloor storage or inspection door lid body of the present invention has been explained based on its embodiments, but the present invention is not limited to the configuration described in the above embodiments and does not depart from the spirit thereof. The configuration can be changed as appropriate within the scope.

The lid for an underfloor storage or inspection port of the present invention has the characteristics of being able to reduce the thickness of the lid while having a certain level of heat insulation performance, and being lightweight and easy to handle. It can be suitably used as a cover for an underfloor storage or a cover for an underfloor inspection port.

1 Lid body 2 Front side member 3 Back side member 31 Top part 31a Screw hole 32 Bottom part 32a Screw hole 33 Reinforcing rib part 34 Packing attachment part 34a Straight part 34b Corner part 35 Packing 4 Storage box 5 Frame member 6 Frame member 7 Rotating handle F Flooring

Claims (5)

In a lid body formed by integrating a front side member and a back side member using screws , which is used to close an opening of an underfloor storage or an inspection port, the back side member is formed of a synthetic resin material and has a thickness. A reinforcing rib part with a lattice structure or a honeycomb structure , which is 20 to 30 mm in length and is arranged in a space formed by combining the upper surface part, the lower surface part with the lower part bulged out, and the upper surface part and the lower surface part. The upper surface part, the lower surface part and the reinforcing rib part are provided with screw holes passing through the upper surface part, the lower surface part and the reinforcing rib part for attaching screws for integrating the front side member and the back side member, 1. A lid for an underfloor storage or inspection port, characterized in that the space between the ribs of the reinforcing rib portion is sealed by integrating the reinforcing rib portion, the lower surface portion, and the reinforcing rib portion by welding. The lid for an underfloor storage or inspection port according to claim 1, wherein the reinforcing rib portion is integrally formed with an upper surface portion or a lower surface portion. 3. The lid for an underfloor storage or inspection port according to claim 1, wherein a front side member is attached to the upper surface of the back side member via an adhesive layer. The lid for an underfloor storage or inspection port according to claim 1, 2 or 3, wherein a projection for regulating the position of the front member is formed on the surface of the upper surface of the back member. . A mounting surface for the packing mounting portion is formed on the back surface of the lower surface portion of the back side member as an inclined surface with different heights at least on the inner circumferential side and the outer circumferential side of the corner portion. A lid for an underfloor storage or inspection opening according to item 1, 2, 3 or 4.

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