JP4185792B2 - Floor opening lid - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lid used for an opening of an underfloor inspection port or an underfloor storage provided on a floor of a house.
[0002]
[Prior art]
The house is provided with an underfloor inspection port on the floor for regular maintenance and maintenance such as equipment piping, and the underfloor storage is provided in the kitchen. In addition, lids that can be freely opened and closed are attached to these openings, but these lids must have sufficient strength against the load, and there should be no step between the floor surface in the mounted state. . For this reason, the structure of the conventional lid is a configuration comprising a lid substrate, a lid surface plate placed on the upper surface thereof, and a lid frame surrounding the periphery thereof. (For example, refer to Patent Document 1) The lid frame is fixed to the lid surface plate with screws from the side.
[0003]
[Patent Document 1]
Japanese Patent No. 3280651 (page 1-3, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, the conventional lid has a structure in which the lid frame is fixed to the lid surface plate, and is not particularly strongly fixed to the lid substrate. For this reason, if the lid surface is bent, it cannot be corrected when it is fixed, so this deflection appears on the lid as it is, creating a step between the floor and the backlash when the lid is mounted. Will be. This phenomenon is particularly noticeable when the lid cover plate is made of two sheets or a flooring structure using wood.
[0005]
In view of these points, the present invention fixes the lid frame to the lid substrate, so that even if the lid surface plate is bent, it is corrected at the time of fixation, so that the accurate outer shape can always be maintained. The present invention provides a floor opening lid that prevents steps and backlash when the lid is mounted. It is another object of the present invention to provide a floor opening lid that has a simple structure, is excellent in shape retention, is stable when the lid is mounted, and can maintain high airtightness over a long period of time.
[0006]
[Means for Solving the Problems]
Multiple technical means of the floor of the opening lid of the present invention, except, so as not deflected easily against a load, and a lid substrate which ribs are provided, arranged on top of the cover substrate, the peripheral portion The location consists of a lid surface plate fixed by screwing from the back surface and a lid frame provided on the peripheral edge of the lid surface plate, the lid frame having an inward flange at its upper end, With this scissors, the periphery of the lid surface plate is pressed from the top surface, and the lid frame has a plurality of screw holes on its back surface, and is tightened and fixed to the lid substrate by screws from the back surface of the lid substrate. The edge of the lid surface plate is strongly pressed by the scissors and comes into close contact with the lid substrate.
[0007]
In addition, the lid surface plate may be provided with a sheet material, a cushion material, or a carpet overlapped on the upper surface thereof. Further, the lid surface plate may be a wooden flooring plate. In addition, a seal packing material may be provided on the back surface of the lid substrate along the periphery, and the seal packing material may come into contact with the receiving frame of the opening when the lid is mounted so as to be airtight.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Embodiments of a floor opening lid according to the present invention will be described based on examples of the drawings. As shown in FIG. 1, the lid 1 can be opened and closed with respect to an opening 2 provided on the floor. A receiving frame 3 is attached to the periphery of the opening 2, and when the cover is mounted, the periphery of the cover 1 is supported by the receiving frame 3, and the surface thereof is flush with the floor surface. 4 is a floor board, and 5 and 6 are support materials. 7 is an underfloor storage container with an open top surface, which can be removed.
[0009]
As shown in FIG. 2, the lid 1 includes a lid substrate 11, a lid surface plate 12, and a lid frame 13. The lid substrate 11 is made of plastic and has a sufficient strength so as not to be easily bent by a load from the upper surface. The lid surface plate 12 is disposed so as to overlap the surface of the lid substrate 11, and as shown in FIG. The lid surface plate 12 can be freely selected from materials and the like, and the one shown in FIG. 1 has a structure in which a sheet material 15 is bonded to the upper surface. Further, it is possible to use a cushion material or a carpet instead of the sheet material 15. Further, as shown in FIG. 4, the lid surface plate may be a single wooden flooring plate 30.
[0010]
The lid frame 13 is a frame having only a peripheral edge and is fitted to the outer edge of the lid surface plate 12. The lid frame 13 has an inward flange 16 and presses the peripheral edge of the lid surface plate 12 from the upper surface. Screw holes 17 are provided at appropriate positions on the rear surface of the lid frame 13, and are fastened and fixed to the rear surface of the lid substrate 11 by screws 18. Reference numeral 19 denotes a screw through hole provided in the lid substrate 11. By tightening with the screw 18, the lid frame 13 is strongly attracted to the lid substrate 11, so even if the edge of the lid surface plate 12 is bent, it is corrected and strongly adhered to the lid substrate 11, When attached to the opening, there will be no steps or rattling.
[0011]
A seal packing material 20 is attached to the back surface of the lid substrate 11 along the edge as shown in FIG. For this reason, when the lid is mounted, the seal packing material 20 comes into contact with the receiving frame 3, eliminating the gap between the opening 2 and ensuring airtightness.
[0012]
The present invention is not limited to the above-described embodiments, and can be freely modified within the scope of the claims. In particular, materials and detailed shapes are free. Moreover, the kind of cover surface board is also free.
[0013]
【The invention's effect】
In this invention , the lid surface plate is overlapped on the surface of the lid substrate that is not easily bent with respect to the load, and a plurality of portions except the peripheral portion thereof are screwed and fixed from the back surface , and the lid frame is attached to the lid substrate. Since the lid is fixed with screws from the back side , the lid cover plate is screwed and fixed to the surface of the lid substrate, which is strong against bending, and the lid frame is firmly clamped and fixed to the lid substrate . Even if the lid surface plate is strongly pressed from the upper surface by the inner edge of the lid frame, the lid surface plate is corrected even if it is bent. For this reason, the lid retains an accurate shape, and there is no step or no backlash when the lid is mounted. Further, the present invention has a simple structure, and the assembly of the opening lid can be performed only by screwing from the back side, and is easy to assemble.
[0014]
According to the second and third aspects, since the sheet material, the cushion material, and the carpet are provided on the upper surface of the lid surface plate, it can be used freely as desired, and there is no step even with a plurality of sheets. Can be pressed down firmly.
[0015]
According to the fourth aspect of the present invention, the lid surface plate is likely to be bent due to the wooden flooring plate, but the deflection can be corrected by pressing with the lid frame and can be used without a step.
[0016]
According to the fifth aspect of the present invention, since the seal packing material is provided on the peripheral edge of the back surface of the lid substrate, it is possible to improve the airtightness by contacting the receiving frame of the opening when the lid is mounted. For this reason, it does not suffer from the draft from the opening or the ventilation from the storage.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part in an opened state.
FIG. 2 is a cross-sectional view of a main part in an exploded state of the lid.
FIG. 3 is a rear view of the lid.
FIG. 4 is a cross-sectional view of a main part of a lid according to another embodiment.
[Explanation of symbols]
1 Lid 2 Opening 3 Receiving frame 11 Lid substrate 12 Lid surface plate 13 Lid frame 14, 18 Screw 15 Sheet material 16 １６ 17 Screw hole 19 Screw through-hole 20 Seal packing material

Claims (5)

A lid substrate provided with ribs and a lid that is placed on top of this lid substrate so that it does not bend easily with respect to the load. It consists of a cover plate and a cover frame provided on the peripheral side edge of the cover cover plate. The cover frame has a hook inward at its upper end, and presses the periphery of the cover cover plate from the top surface with this cover. In addition, the lid frame has a plurality of screw holes on the back surface, and is tightened and fixed to the lid substrate with screws from the back surface of the lid substrate, and the edge of the lid surface plate is strongly pressed by the lid frame. An open lid on the floor that comes in close contact with the lid substrate.   The floor opening lid according to claim 1, wherein a sheet material is provided on the upper surface of the lid surface plate.   The floor opening lid according to claim 1, wherein a cushion material and a carpet are provided on the upper surface of the lid surface plate.     The floor opening lid according to claim 1, wherein the lid surface plate is a wooden flooring material.   2. A seal packing material is provided on the rear surface of the lid surface plate along the peripheral edge, and the seal packing material comes into contact with the receiving frame of the opening when the lid is mounted so as to achieve airtightness. Opening lid of the described floor.

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