JP2004278122A - Opening cover of floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate a step and looseness in mounting a cover by accurately holding a cover shape in the opening cover provided on a floor. <P>SOLUTION: The cover 1 comprises a firm cover base board 11 for deflection, a cover front plate 12 provided to be overlapped on the cover base board, and a cover frame 13 provided on the peripheral side edge of the cover front plate. On an inward flange 16 on the cover frame 13, the peripheral edge of the cover front plate 12 is depressed from an upper face. In a plurality of screw holes 17 in the rear face of the cover frame 13, screws 18 are tightened and fixed for the cover base board 11 from the rear face of the cover base board 11. A seal packing material is adhered along the peripheral edge on the rear face of the cover base board, and comes into contact with a receiving frame 3 of an opening 2 in mounting the cover. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD 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]
In a house, an underfloor inspection port is provided on the floor surface for regular maintenance and maintenance of equipment piping, and a kitchen is provided with an underfloor storage. Openable and closable lids are attached to these openings, but the lids must have sufficient strength against load and have no step with the floor when mounted. . For this reason, the conventional lid structure has a configuration including a lid substrate, a lid top plate placed on the upper surface thereof, and a lid frame surrounding the periphery thereof. (See, for example, Patent Document 1) The lid frame is fixed to the lid front plate by screws from the side.
[0003]
[Patent Document 1]
Japanese Patent No. 3280651 (pages 1-3, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, the above-mentioned 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 bending appears on the outer shape of the lid as it is, and when the lid is attached, a step is formed between the lid and the floor surface, and rattling occurs. Or will be. In particular, this phenomenon is remarkable when the cover plate is made of two sheets or a flooring structure using wood.
[0005]
In view of such a point, 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 fixing to always maintain an accurate outer shape. Another object of the present invention is to provide an opening lid for a floor, which prevents a step or rattling when the lid is mounted. Another object of the present invention is to provide a floor opening lid which has a simple structure, is excellent in shape retention, has good stability when the lid is mounted, and can maintain high airtightness over a long period of time.
[0006]
[Means for Solving the Problems]
The technical means of the floor opening lid of the present invention includes a lid substrate that is strong against bending, a lid top plate provided on the lid substrate, and a lid provided on a peripheral edge of the lid top plate. The lid frame has an inward flange, and the flange presses the peripheral edge of the lid top plate from above, and the lid frame has a plurality of screw holes on its back surface. It is to be fixedly fastened to the lid substrate by screws from the back surface of the substrate.
[0007]
The cover plate may be provided with a sheet material, a cushion material, or a carpet stacked on the upper surface thereof. Further, the lid top plate may be a wooden flooring plate. Also, a seal packing material may be provided on the back surface of the lid substrate along the peripheral edge so that when the lid is mounted, the seal packing material comes into contact with the receiving frame of the opening to achieve airtightness.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the floor lid according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the lid 1 is openable and closable 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 lid is mounted, the peripheral edge of the lid 1 is supported by the receiving frame 3, and its surface is flush with the floor surface. 4 is a floor plate, 5 and 6 are support materials. Reference numeral 7 denotes an under-floor storage container having an open upper surface, which is removable.
[0009]
As shown in FIG. 2, the lid 1 includes a lid substrate 11, a lid top 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 cover front plate 12 is disposed so as to overlap with the surface of the cover substrate 11, and is fixed with screws 14 at key points. The material and the like of the lid front plate 12 can be freely selected, and the one shown in FIG. 1 has a configuration in which a sheet material 15 is bonded to the upper surface. Further, a cushion material, a carpet, or the like can be used instead of the sheet material 15. Further, as shown in FIG. 4, the lid top 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 front plate 12. The lid frame 13 has an inward flange 16 and presses the peripheral edge of the lid front plate 12 from above. A screw hole 17 is provided at an appropriate position on the rear surface of the lid frame 13, and the screw hole 17 is screwed and fixed to the rear surface of the lid substrate 11 with a screw 18. 19 is a screw through hole provided in the lid substrate 11. Since the lid frame 13 is strongly drawn to the lid substrate 11 by the tightening with the screws 18, even if the edge of the lid front plate 12 is bent, it is corrected and strongly adhered to the lid substrate 11, When mounted in the opening, there is no step or backlash.
[0011]
Reference numeral 20 denotes a seal packing material, which 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 a gap between the opening 2 and airtightness.
[0012]
The present invention is not limited to the above embodiment, and can be freely modified and implemented within the scope of the claims. In particular, the material and the detailed shape are free. In addition, the type of the cover plate is also free.
[0013]
【The invention's effect】
Since the present invention is a method in which the lid frame is tightened and fixed to the lid substrate from the back side by screws, the lid frame is firmly fixed to the lid substrate which is strong against bending, and is fixed by the inner flange of the lid frame. The periphery of the lid front plate is strongly pressed from the upper surface, so that even if the lid front plate is bent, it is corrected. For this reason, the lid retains an accurate shape, and there is no step or rattling when the lid is mounted. In addition, the present invention is very useful for implementation because the structure is simple and the assembly is easy.
[0014]
According to the second and third aspects, the sheet material, the cushioning material, and the carpet are provided on the upper surface of the lid front plate, so that they can be used freely as desired, and there is no step even with a plurality of sheets. Can be firmly held down.
[0015]
According to the fourth aspect, the lid is easily bent by the wooden flooring plate, but the bending can be corrected by pressing with the lid frame, so that the lid can be used without any step.
[0016]
According to the fifth aspect, since the seal packing material is provided on the periphery of the back surface of the lid substrate, the airtightness can be improved by contacting the receiving frame of the opening when the lid is mounted. For this reason, there is no need to worry about the draft from the opening or the ventilation from the storage.
[Brief description of the drawings]
FIG. 1 is a sectional view of a main part in an opened state.
FIG. 2 is a sectional view of a main part of the disassembled state of the lid.
FIG. 3 is a rear view of the lid.
FIG. 4 is a sectional view of a main part of a lid according to another embodiment.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 lid 2 opening 3 receiving frame 11 lid substrate 12 lid front plate 13 lid frames 14, 18 screws 15 sheet material 16 flange 17 screw hole 19 screw through hole 20 seal packing material

Claims (5)

It consists of a lid substrate that is strong against bending, a lid top plate that is provided on top of this lid substrate, and a lid frame that is provided on the peripheral edge of the lid front plate, and the lid frame has an inward flange. This flange presses the peripheral edge of the lid front plate from above, and the lid frame has a plurality of screw holes on its back surface, and is fastened to the lid substrate with screws from the back surface of the lid substrate. An open lid on the floor to be fixed. The floor opening lid according to claim 1, wherein a sheet material is provided on the top surface of the lid top plate so as to overlap. The floor lid according to claim 1, wherein a cushion material or a carpet is provided on the upper surface of the lid top plate. 2. The floor opening lid according to claim 1, wherein the lid top plate is a wooden flooring board. 2. A seal packing material is provided on a rear surface of the lid substrate along a peripheral edge, and when the lid is mounted, the seal packing material comes into contact with a receiving frame of the opening to achieve airtightness. Floor opening lid.

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