JP2017089285A - Opening cover for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress damage of the outer peripheral edge part in a cover front plate while suppressing an increase in width of a cover frame.SOLUTION: A cover 1 comprises a cover base plate 11, a cover front plate 12 arranged on the cover base plate 11, and a cover frame 13 arranged in the outer peripheral edge of the cover front plate 12 and fixed to the cover base plate 11 by a plurality of countersunk screws 16. The cover frame 13 has a cylindrical part 13a and a flange part 13b inwardly-formed at the top edge of the cylindrical part 13a and opposed to the top face 12b of the cover front plate 12 in the vertical direction. A plurality of screw holes 11d for fixing the countersunk screws 16 are formed in the outer peripheral side surface 11c of the cover base plate 11. The cylindrical part 13a has a plurality of open holes 13a1 through which the countersunk screws 16 pass formed at a position facing each of the plurality of screw holes 11d.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an opening lid for a floor used for opening an underfloor inspection port or an underfloor storage provided on a floor of a house.

  For example, as the opening lid of the underfloor storage, the annular fixing portion of the lid cover (lid frame) and the annular peripheral rising portion of the lid frame (lid substrate) are transverse to the outer peripheral side surface of the lid plate (lid surface plate) There are some which are configured by screwing to (see Patent Document 1).

  In addition, there is an open lid configured by screwing the lid frame vertically with the lid frame and the lid substrate by screwing the lid frame in the vertical direction at the periphery of the lid substrate (see Patent Document 2). ).

JP 2001-207635 A Japanese Patent No. 4185792

  As the cover plate, a thin plate such as a flooring material that is generally the same as the surrounding floor surface is used. In the open lid described in Patent Document 1, the lid cover and the lid frame are fastened and fixed to the outer peripheral side surface of the lid plate with screws, so that the lid plate has a thin plate shape depending on the skill of the operator who performs screwing. Since it is often a plywood, there is a risk that cracks or cracks may occur in the peripheral edge of the lid plate. Furthermore, it cannot be used substantially up to the cushion floor.

  On the other hand, in the opening lid described in Patent Document 2, since the lid frame is screwed to the peripheral portion of the lid substrate, even if the lid surface plate is a thin plate, there is a crack or the like in the peripheral portion of the lid surface plate. Does not occur. However, since the lid frame that covers the periphery of the lid surface plate is screwed in the vertical direction, the width in the direction (lateral direction) parallel to the upper surface of the lid surface plate increases. For this reason, when the opening lid is attached to the opening of the floor, the frame of the opening lid (that is, the lid frame) is conspicuous, and it is impossible to meet the demand of a user who prefers a frame with a small width.

  Accordingly, an object of the present invention is to provide a floor opening lid capable of suppressing the outer peripheral edge portion of the lid surface plate from being damaged while suppressing an increase in the width of the lid frame.

The floor opening lid of the present invention includes a lid substrate, a lid surface plate disposed on the lid substrate, a lid frame disposed on an outer peripheral edge of the lid surface plate, and fixed to the lid substrate by a plurality of screws. And. The lid frame extends in the vertical direction and is formed inwardly on a side wall portion facing the outer peripheral side surface of the lid substrate and the outer peripheral side surface of the lid surface plate, and on the upper end of the side wall portion. A plurality of plates for fixing the screws, the upper surface of the plate and a flange facing the vertical direction, and extending in a direction intersecting the vertical direction on the outer peripheral side surface of the lid substrate. A horizontal screw hole is formed, and a plurality of guide holes for passing the screw are formed in the side wall portion at positions opposed to the plurality of horizontal screw holes, respectively.
In the present invention, the side wall portion of the lid frame may be a cylindrical portion that continuously surrounds the entire outer periphery of the lid substrate, or a rib shape that partially surrounds the outer periphery of the outer periphery of the lid substrate. May be. In the present invention, the guide hole formed in the side wall portion of the lid frame includes a through hole or a hole that does not penetrate.

According to this, by tightening the screw into the horizontal screw hole of the lid substrate through the guide hole of the lid frame, the lid surface plate arranged on the lid substrate can be sandwiched between the collar portion of the lid frame and the lid substrate. . Thereby, it can suppress that the outer-periphery edge part of a cover surface board is damaged, suppressing that the width | variety of the cover frame in the direction parallel to the upper surface of a cover surface board becomes large.
In the present invention, the lid surface plate may be preliminarily pasted or placed on the lid substrate in the form of a sheet or plate, or may be pasted or placed on site by an operator. May be used.

  In the present invention, a first convex portion or a first concave portion is formed on the outer peripheral side surface of the lid substrate, and the inner peripheral side surface of the side wall portion facing the outer peripheral side surface of the lid substrate is provided with the first convex portion. A second concave portion that engages with the first convex portion or a second convex portion that engages with the first concave portion is formed, and the horizontal screw hole and the guide hole are the first convex portion or the first convex portion of the lid substrate. When the concave portion and the second concave portion or the second convex portion of the side wall portion are engaged with each other, the opening of the horizontal screw hole and the guide hole are arranged to face each other when viewed from the extending direction of the horizontal screw hole. It is preferable. For example, when the lateral screw hole and the through hole (guide hole) are engaged with the first convex portion or the first concave portion of the lid substrate and the second concave portion or the second convex portion of the side wall portion, It is preferable that the entire opening of the horizontal screw hole is disposed in the through hole when viewed from the extending direction of the horizontal screw hole. As a result, the horizontal screw hole of the lid substrate and the guide hole of the lid frame can be easily aligned, and the assembling work between the lid substrate and the lid frame is simplified.

  In the present invention, the screw is a countersunk screw, the guide hole is a countersunk hole corresponding to the countersunk screw, and the opening center of the countersink is the first convex portion or the first of the lid substrate. When the concave portion and the second concave portion or the second convex portion of the side wall portion are engaged with each other, it is preferable that the concave portion is disposed above the center of the opening of the lateral screw hole. According to this, when the countersunk head screw is tightened into the horizontal screw hole through the countersunk hole of the lid frame, the head and countersunk hole of the countersunk head screw engage to open the center of the countersunk hole and the opening of the horizontal screw hole. The lid frame moves downward so that the center coincides. For this reason, the lid | cover surface board arrange | positioned on a lid | cover board | substrate can be clamped more firmly with the collar part of a lid | cover frame, and a lid | cover board | substrate.

  According to the opening lid of the floor of the present invention, by tightening the screw into the lateral screw hole of the lid substrate through the guide hole of the lid frame, the lid surface plate arranged on the lid substrate is connected to the flange portion of the lid frame and the lid substrate. Can be pinched. Thereby, it can suppress that the outer-periphery edge part of a cover surface board is damaged, suppressing that the width | variety of the cover frame in the direction parallel to the upper surface of a cover surface board becomes large.

It is a figure showing the state where the lid concerning one embodiment of the present invention was attached to the opening of the floor. It is an enlarged view of the principal part E shown in FIG. It is a top view of the lid concerning one embodiment of the present invention. FIG. 2 is a side view of the lid substrate shown in FIG. 1. (A) is a side view of the lid frame shown in FIG. 1, (b) is sectional drawing along the VV line shown to Fig.5 (a). (A) is a fragmentary sectional view when the convex part of a lid substrate and the concave part of a lid frame are engaged, and a screw hole and a through-hole are aligned, (b) is a convex part and lid frame of a lid substrate. It is an enlarged side view when it sees from the extension direction of a screw hole, when engaging the recessed part of this and aligning a screw hole and a through-hole.

  Hereinafter, a floor opening lid according to an embodiment of the present invention will be described below with reference to FIGS. The lid (opening lid) 1 is disposed so as to be openable and closable with respect to the opening 2 provided on the floor 3. The floor 3 includes a flooring 4, a supporting material 5 that supports the flooring 4, and a supporting material 6 that supports the supporting material 5, and an opening 2 is formed. A receiving frame 7 is attached to the periphery of the opening 2, and the periphery of the lid 1 is supported by the receiving frame 7 when the lid 1 is mounted. At this time, the surface of the lid 1 is flush with the floor surface 4a. An underfloor storage container 8 having an open top surface is detachably supported at the lower end of the receiving frame 7.

  As illustrated in FIGS. 1 and 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 a synthetic resin and has a square planar shape as shown in FIG. Further, the lid substrate 11 has a plurality of ribs 11b formed in a lattice shape, and has a sufficient strength so as not to be easily bent by a load from the upper surface 11a. The lid surface plate 12 is disposed on the upper surface 11 a of the lid substrate 11. The lid surface plate 12 has a square planar shape similar to that of the lid substrate 11 and is formed to have substantially the same size as the lid substrate 11. A handle 17 for attaching to and removing from the opening 2 of the lid 1 is provided on the upper surface 12 b of the lid surface plate 12. In the lid substrate 11, through holes 11 i penetrating in the vertical direction A are formed at a plurality of locations excluding a region facing the peripheral edge of the lid surface plate 12. That is, the plurality of through-holes 11i are formed at positions facing the inner region of the periphery of the lid surface plate 12, as shown in FIG.

  As shown in FIGS. 3 and 4, two screw holes (lateral screw holes) 11 d are formed on the outer peripheral side surface 11 c of each side of the lid substrate 11 so as to be separated from each other along the circumferential direction B. As shown in FIG. 2, the screw hole 11d extends in a horizontal direction perpendicular to the vertical direction A and in a direction facing the outer peripheral side surface 11c in which the screw hole 11d is formed. Note that the screw hole 11d may extend slightly tilted vertically and horizontally. Further, the screw hole 11d has a female screw corresponding to a male screw of a countersunk screw 16 described later.

  On the outer peripheral side surface 11c on each side of the lid substrate 11, four protrusions 11e projecting outward are spaced apart from each other along the circumferential direction B, as shown in FIG. Two protrusions 11e are formed on both sides in the circumferential direction B so as to sandwich each screw hole 11d. Each convex portion 11 e extends along the circumferential direction B.

  In the vicinity of the periphery of the lower surface 11f of the lid substrate 11, an annular recess 11g that opens downward is formed as shown in FIG. An annular seal packing material 11h is provided in the recess 11g. As a result, when the lid 1 is mounted, the seal packing material 11h comes into contact with the receiving frame 7, eliminating the gap between the opening 2 and ensuring airtightness.

  As shown in FIGS. 2 and 3, the lid surface plate 12 is fixed to the lid substrate 11 by a plurality of screws 14 that are passed through the through holes 11 i from below. The lid surface plate 12 in the present embodiment employs the same wooden flooring plate as the flooring 4, but may be composed of another material or a configuration in which a sheet material is bonded onto the plate material. May be. As the sheet material, a cushion material or a carpet may be employed.

  As shown in FIGS. 2 and 3, the lid frame 13 is a rectangular frame and is fitted to the outer peripheral edge of the lid surface plate 12. As illustrated in FIG. 2, the lid frame 13 includes a cylindrical portion 13 a (side wall portion) that extends along the vertical direction A, and a flange portion 13 b. The cylindrical portion 13 a faces the outer peripheral side surface 11 c of the lid substrate 11 and the outer peripheral side surface 12 a of the lid surface plate 12. The flange portion 13b is formed inwardly at the upper end of the cylindrical portion 13a, and faces the outer peripheral edge of the upper surface 12b of the lid surface plate 12 in the vertical direction A.

  As shown in FIGS. 2, 3, and 5 (a), the cylindrical portion 13 a is formed with eight through holes 13 a 1 (guide holes) penetrating in the thickness direction and spaced apart from each other along the circumferential direction B. ing. As shown in FIG. 2, the through-hole 13 a 1 is a countersunk hole that is formed at a position facing the screw hole 11 d and engages with the head while passing the threaded part of the countersunk screw 16. Further, as shown in FIG. 6, the through hole 13a1 has a minimum inner diameter larger than the inner diameter of the screw hole 11d.

  As shown in FIG. 5, 16 concave portions 13a3 are formed on the inner peripheral side surface 13a2 facing the outer peripheral side surface 11c of the lid substrate 11 of the cylindrical portion 13a. Each concave portion 13a3 is formed at a position facing the convex portion 11e. Moreover, each recessed part 13a3 is extended elongate along the circumferential direction B, and has the shape which can fit the convex part 11e.

  The concave portion 13 a 3 of the lid frame 13 and the convex portion 11 e of the lid substrate 11 are used for alignment between the lid frame 13 and the lid substrate 11. Before the countersunk head screw 16 is tightened into the screw hole 11d and when the convex portion 11e is engaged with the concave portion 13a3 and is engaged with each other, as shown in FIG. The opening center G1 of 13a1 is disposed above the opening center G2 of the screw hole 11d. More specifically, as shown in FIG. 6B, when the entire opening of the screw hole 11d is disposed in the through hole 13a1 when viewed from the extending direction of the screw hole 11d, the opening center G1 is the opening center G2. The through-hole 13a1 is slightly shifted from the screw hole 11d (displaced by about 0.3 mm in the present embodiment) so as to be disposed above the position. At this time, the lid frame 13 is disposed at a position where the tip of the flange 13b contacts the upper surface 12b of the lid surface plate 12, as shown in FIG.

  As shown in FIG. 6 (a), the convex portion 11e and the concave portion 13a3 are thus engaged, and the through hole 13a1 of the lid frame 13 and the screw hole 11d of the lid substrate 11 are positioned. When the screw portion of the countersunk screw 16 is tightened into the screw hole 11d through the through hole 13a1, the lower end of the head of the countersunk screw 16 comes into contact (engagement) with the lower end of the through hole 13a1 (sink hole). . By the contact of the head of the countersunk screw 16, the lid frame 13 is pushed down so that the opening center G1 and the opening center G2 coincide. For this reason, the lid surface plate 12 disposed on the lid base end 11 can be more firmly held between the flange portion 13 b of the lid frame 13 and the lid substrate 11. By tightening with the countersunk head screw 16, the lid frame 13 is strongly attracted to the lid substrate 11, so that even if the edge of the lid surface plate 12 is bent, it is corrected and strongly adhered to the lid substrate 11. When the lid 1 is attached to the opening 2, there is no step and no backlash occurs.

  As described above, according to the lid 1 of the present embodiment, the flat head screw 16 is disposed on the lid substrate 11 by tightening the countersunk screw 16 into the screw hole 11d of the lid substrate 11 through the through hole 13a1 of the lid frame 13. The lid surface plate 12 can be sandwiched between the flange 13 b of the lid frame 13 and the lid substrate 11. Thereby, it can suppress that the outer periphery part of the lid | cover cover board 12 is damaged, suppressing the width | variety of the lid | cover frame 13 in the direction parallel to the upper surface 12b of the lid | cover cover board 12 becoming large.

  The lid substrate 11 has a plurality of convex portions 11e, and the lid frame 13 has a plurality of concave portions 13a3 engaged with the convex portions 11e, so that the screw holes 11d of the lid substrate 11 and the through holes of the lid frame 13 are provided. Positioning with 13a1 can be easily performed, and the assembly work of the lid substrate 11 and the lid frame 13 is simplified.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. Although the screw holes 11d and the through holes 13a1 in the above-described embodiment are formed eight by eight, they may be formed by 2 to 7, 9 or more. The lid substrate 11, the lid surface plate 12, and the lid frame 13 have a quadrangular planar shape, but may be a triangle, a polygon of five or more, a circle and an ellipse, There is no particular limitation.

  A convex portion 11e (second convex portion) may be formed on the lid frame 13 instead of the concave portion 13a3, and a concave portion 13a3 (first concave portion) may be formed on the lid substrate 11 instead of the convex portion 11e. Even in this case, the same effect as that of the above-described embodiment can be obtained. In addition, when the convex portion 11e and the concave portion 13a3 are engaged and the through hole 13a1 of the lid frame 13 and the screw hole 11d of the lid substrate 11 are positioned, the opening center G1 and the opening center G2 are coincident with each other. Alternatively, the opening center G1 may be lower than the opening center G2.

  The material of the lid substrate 11, the lid surface plate 12, and the lid frame 13 constituting the lid 1 may be made of any material such as metal. Moreover, the lid | cover 1 should just be used for opening of a floor, and is not restricted to the lid | cover of an underfloor storage.

  The cylindrical portion 13 a (side wall portion) of the lid frame 13 may be formed in a rib shape that partially surrounds the outer periphery of the outer peripheral side surface 11 c of the lid substrate 11. The through hole 13a1 may be a guide hole for guiding the countersunk screw 16 without penetrating. In this case, the countersunk head screw 16 may be screwed into the bottom surface of the guide hole and penetrated, and the countersunk head screw 16 may be tightened into the screw hole 11d. The lid 1 (opening lid) is composed of a lid substrate 11 and a lid frame 13, and the lid surface plate 12 is created on site by an operator and attached to or placed on the lid substrate 11. You may do it.

1 lid (opening lid)
11 Lid board 11c Outer peripheral side 11d Screw hole (lateral screw hole)
11e Convex part (first convex part, second convex part)
12 Lid surface plate 12a Outer peripheral side surface 12b Upper surface 13 Lid frame 13a Cylindrical part (side wall part)
13a1 Through hole (dish hole, guide hole)
13a2 Inner peripheral side surface 13a3 Recess (second recess, first recess)
13b buttocks 16 countersunk head screw (screw)
G1, G2 opening center

Claims (4)

A lid substrate;
A lid surface plate disposed on the lid substrate;
A lid frame disposed on the outer periphery of the lid surface plate and fixed to the lid substrate by a plurality of screws;
The lid frame extends in the vertical direction and is formed inwardly on a side wall portion facing the outer circumferential side surface of the lid substrate and the outer circumferential side surface of the lid surface plate, and on an upper end of the side wall portion. An upper surface and a flange portion facing in the vertical direction;
A plurality of horizontal screw holes for fixing the screw are formed on the outer peripheral side surface of the lid substrate, extending in a direction intersecting the vertical direction,
A floor opening lid, wherein a plurality of guide holes for passing the screws are formed in the side wall portions at positions facing the plurality of horizontal screw holes, respectively. A lid substrate on which the lid surface plate is placed;
A lid frame that is disposed on the outer peripheral edge of the lid surface plate when the lid surface plate is placed on the lid substrate, and is fixed to the lid substrate by a plurality of screws;
The lid frame extends in the vertical direction and faces the outer peripheral side surface of the lid substrate, the upper surface of the lid surface plate formed inwardly at the upper end of the side wall portion, and the upper and lower sides. Having a collar portion facing in the direction,
A plurality of horizontal screw holes for fixing the screw are formed on the outer peripheral side surface of the lid substrate, extending in a direction intersecting the vertical direction,
A floor opening lid, wherein a plurality of guide holes for passing the screws are formed in the side wall portions at positions facing the plurality of horizontal screw holes, respectively. A first convex portion or a first concave portion is formed on the outer peripheral side surface of the lid substrate,
A second concave portion that engages with the first convex portion or a second convex portion that engages with the first concave portion is formed on the inner peripheral side surface of the side wall portion that faces the outer peripheral side surface of the lid substrate. ,
The horizontal screw hole and the guide hole extend when the first convex portion or the first concave portion of the lid substrate is engaged with the second concave portion or the second convex portion of the side wall portion. 3. The floor opening lid according to claim 1, wherein the opening of the lateral screw hole and the guide hole are arranged to face each other when viewed from a current direction. The screw is a countersunk screw;
The guide hole comprises a countersunk hole corresponding to the countersunk screw,
The opening center of the countersink is greater than the opening center of the lateral screw hole when the first convex portion or the first concave portion of the lid substrate is engaged with the second concave portion or the second convex portion of the side wall portion. The floor opening lid according to claim 3, wherein the floor opening lid is also disposed above.

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