JP4755011B2 - Lid - Google Patents

Description

  The present invention relates to a lid structure for closing an opening formed in a floor, a rim side, a shelf, and other structures and facilities of a house.

  When closing the opening formed on the upper surface of the existing equipment, a plate member is put on and fixed when the opening is completely closed, and a lid is attached to the opening when the opening can be opened and closed even after closing. The structure of such a lid differs depending on the type of equipment to be attached, etc., but the frame is fixed to the inner periphery of the opening of the equipment and the lid is hinged to the frame, or the lid is framed. There are many configurations that are detachably attached to the body and are integrally fixed by a locking mechanism or a fastener such as a bolt while the lid is attached to the frame.

  For example, in the former configuration, as shown in FIG. 5, the end of the lid 62 is hinged to the upper surface of the frame 61 so as to be rotatable, and the frame 61 is an opening formed in a facility 63 such as a stand. There is a lid fitted and fixed to 63a, and the opening 63a is opened and closed by rotating the lid 62, and the latter includes a lid of a mechanism for attaching and detaching a manhole lid. In addition, the illustrated lid has a configuration that also serves as an ashtray (see, for example, Patent Document 1).

Utility Model Registration No. 3091893

  By the way, when removing the water supply / drainage pipe that has been passed from the bottom of the floor to the floor at the time of repairing or renovating the house, if the floorboard is not replaced, a process of closing the opening of the floorboard through which the water supply / drainage pipe has passed is performed. In this case, if the plate material is overlapped on the opening portion and fastened to the floor plate, a step may be formed on the floor surface, hindering walking, and there is a risk of injury due to the foot or trousers being caught on the plate material.

  On the other hand, if the lid is fitted into the opening portion and closed, there is no difference in level as when the plate material is stacked and fastened on the floor surface. However, in the lid that is configured to fix the lid with the locking mechanism and the fastener, the unevenness of the locking mechanism and the fastener is exposed on the surface of the lid, so the floor surface cannot be flushed, There is also a danger that the feet and the like get caught in the unevenness of the lid surface, and the appearance of the floor will also deteriorate.

  If a lid with an open / close structure is attached to the opening, it is possible to inspect the floor through the lid. In this case, a person steps on the floor or an object is placed on the lid, and the lid is loaded, or the child operates the lid. Even if it does, it is necessary to ensure that the lid body is securely held in the frame body without shifting or removing the position of the lid body. On the other hand, when inspecting under the floor, it is desirable that the lid can be removed by a simple operation.

  In view of such problems of the prior art, the present invention provides a lid for closing an opening formed on the upper surface of a floor board or the like, and can be attached to the opening so as to be substantially flush with the peripheral surface. It is an object of the present invention to make it possible to remove a lid by a simple operation without being removed even when a load is applied.

  In order to solve the above problems, the lid of the present invention is provided with a flange projecting outward on the outer peripheral wall, and a plurality of seats and notches projecting inward on the inner peripheral wall along the circumferential direction. A cylindrical frame having a concave step on the lower surface of the edge of the seat facing the surface, and a disk shape that fits within the opening surface of the frame, and the upper surface is provided on a flat surface. In addition, a plurality of convex portions having a width corresponding to the cutout portions are provided along the peripheral edge on the lower surface periphery, and projecting downward at the lower surface inward position adjacent to the convex portion, and the tip is bent outward. A lid body provided with a claw portion is provided, and the lid body fitted in the opening surface of the frame body is placed on and supported by the seat, and when the convex portion is immersed in the cutout portion of the frame body, the claw of the lid body It has the structure which provided the part front-end | tip so that it might be located under the recessed step part of a frame with a clearance gap.

  In the above configuration, a pair of notches can be provided on the inner peripheral wall at the opposite position across the center of the frame, and a pair of convex portions can be arranged on the peripheral edge of the lower surface of the lid corresponding to this. You may provide a notch part and a convex-shaped part in three or more corresponding | compatible places. Moreover, you may provide a flange in a polygonal shape so that it may engage with the periphery of the opening with respect to the opening of a polygonal cross section. The frame and the lid can be formed by injection molding using resin materials such as vinyl chloride resin and ABS resin, respectively.

According to this, the frame body is fitted into the opening formed in the floor board or the like, the flange is overlapped on the periphery of the opening, the frame body is fixed, the lid body is attached to the inside from above, and the lower surface is attached to the upper surface of the seat It is possible to close the opening by placing it on and supporting the lid inside the frame.
At this time, if the lid is positioned and attached so that the claw portion overlaps the notch of the frame, the convex portion on the lower surface of the lid is placed on the seat, and the lid is rotated from that position. Then, the convex portion slides on the seat and shifts the position, and at the same time, the tip of the claw portion enters the concave step portion on the lower surface of the seat. Then, at the position where the convex part shifted in position overlaps the notch part, the convex part is immersed into the notch part and the entire lid body is slightly displaced downward, and at the same time, the tip of the claw part is a concave step part. It is arranged with a gap below.
In this state, the lid is placed on and supported by the upper surface of the seat, and the lid is not detached from the frame even when a downward force is applied to the lid from above. Further, since the convex portion of the lid body is immersed in the cutout portion of the frame body, the lid body is prevented from rotating, and the lid body does not shift its position even when a circumferential force is applied to the lid body. Furthermore, even if an upward force is applied to the lid body from above, the lid body does not lift from the frame body because the claw portion of the lid body engages with the recessed step portion of the frame body.
On the other hand, if the lid body is lifted slightly by using a suction tool or the like, the convex portion is displaced from the immersive position onto the cutout portion, so that the lid body can be rotated. The horizontally displaced convex part rides on the seat, and the tip of the claw part located below the concave step part shifts the position into the notch part to release the engagement with the concave step part. Can be removed from.

  According to the lid of the present invention, the frame body is fitted to the opening by placing a flange on the peripheral edge of the opening, and the lid body having a flat upper surface is mounted therein, so that it protrudes upward from the opening surface. The part is only a flange, and the lid can be attached so as to be substantially flush with the surface around the opening. In addition, the lid mounted at a predetermined position inside the frame does not rotate or be removed even if force is applied from above or around it, and is stably held in the frame to securely close the opening. Is possible. Furthermore, using a suction tool, the lid attached to the frame can be lifted first, then rotated as it is, and the lid can be removed from the frame, and the underfloor can be inspected through the opening. It is possible to attach and detach the lid without taking time.

A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an upper surface side and a lower surface side of a lid body and a frame body constituting a lid according to an embodiment of the present invention, and FIG. 2 is a side view of the lid body and the frame body in FIG. Fig. 3 is a bottom view of the lid with the lid attached to the frame body and a cutaway end view of the main part, and Fig. 4 is a state in which the lid body is rotated from the position shown in Fig. 3 and fixed to the frame body. It is the bottom view and principal part cutting | disconnection end elevation of a cover tool.

  In the form shown in the figure, the place where there is a water supply facility in the house is renovated, and the opening exposed on the floor is closed with the lid of the present invention when the water supply / drainage pipe passed through the opening formed in the floor board is removed. In the figure, reference numeral 1 denotes a lid, 2 denotes a frame body, 3 denotes a lid body, 4 denotes a floor board, and 41 denotes an opening formed in the floor board 4.

  As shown in FIG. 1 and FIG. 2, the lid 1 includes a cylindrical frame 2 and a disc-shaped lid 3 having a size that fits almost completely in the opening surface of the frame 2. It is configured.

More specifically, the frame body 2 is provided with a flange 21 projecting outward with a uniform width around the entire upper edge of the outer peripheral wall, and the inner peripheral wall is inwardly extended from the lower half of the inner peripheral wall. Receiving seats 22 and 22 projecting with such a width are provided integrally, and notches 23 and 23, which are portions where the receiving seats 22 are not formed, are arranged between the two seats 22.
Both receiving seats 22 have an arcuate shape in plan view within the opening surface of the frame body 2 and project inwardly, and are recessed on the lower surface of the edge of one of the ends facing the notches 23, 23. A step portion 22a is provided.
Further, the notches 23 and 23 have the same width (We) along the circumferential direction, are arranged at positions facing each other across the center of the frame body 2, and further the frame body facing the notches 23 and 23. Holes 24 and 24 for inserting fasteners such as fastening screws are formed in the peripheral wall 2.

The lid 3 has an upper surface 31 provided on a flat surface having no irregularities, and the lower surface of the lid 3 is formed with concave portions 32, 32 each having a thickness and a width corresponding to the receiving seats 22, 22. Convex portions 33 and 33 having thicker peripheral portions between the concave portions 32 are provided, and a cylindrical portion 34 protruding downward with an appropriate diameter is provided at the center of the lower surface. The convex portions 33 and 33 have a width (Wc) along the circumferential direction thereof equal to that of the cutout portion 23 (Wc = We).
Further, it protrudes downward from the lower surface at the inner surface of the lower surface adjacent to the convex portions 33, 33 at the end of the concave portions 32, 32 facing each other across the center of the lower surface of the lid 3, and the tip is removed. Claw portions 35, 35 bent toward each other are integrally provided. The tips of both the claw portions 35 are extended to a position facing the concave portion 32.

  The outer diameter of the frame body 2 is set slightly smaller than the inner diameter of the opening 41 so as to be fitted into the opening 41 formed in the floor plate 4. For example, the opening 41 of the floor board 4 as in this embodiment is formed with a standard inner diameter of about 140 mm as a hole for passing a water supply / drainage pipe in an apartment house, whereas the frame body 2 is formed with an outer diameter of about 139 to 136 mm. Is done. As shown in FIG. 2, the thickness (Tc) of the lid 3 in the concave portion 32 is substantially the same as the depth (Tf) from the upper edge of the frame 2 to the upper surface of the seat 21 (Tc = Tf). It is set to.

  The lid 1 of this embodiment configured as described above is configured such that the frame body 2 is fitted into the opening 41 from above the floor, the flange 21 is overlapped on the periphery of the opening 41, and fastening screws are screwed into the floor plate 4 from the holes 24 and 24. The frame body 2 is fixed in the opening 41, the lid body 3 is mounted on the opening surface of the frame body 2 from above, and the opening 41 is closed by supporting it on the seats 22 and 22. it can.

  At this time, the mounting operation of the lid 3 is performed by first positioning the lid 3 so that the claw portions 35, 35 overlap the notches 23, 23 above the frame 2, and this is the opening surface of the frame 2. 3, the convex portions 33 and 33 on the lower surface of the lid 3 are placed on the upper surfaces of the seats 22 and 22, and the claw portions 35 and 35 enter the notches 23 and 23, as shown in FIG. 3. The lid 3 is held at a position where the upper surface 31 protrudes slightly from the upper end of the frame 2.

  Then, when the lid 3 is rotated from the mounting position, the convex portions 33 and 33 slide on the receiving seats 22 and 22 to shift the positions, and at the same time, the tips of the claw portions 35 and 35 are recessed steps on the lower surface of the receiving seat 22. As shown in FIG. 4, the convex portions 33 and 33 are immersed into the notches 23 and 23 at the positions where the convex portions 33 and 33 overlap the notches 23 and 23, respectively. Then, the entire lid 3 is slightly displaced downward, and the tips of the claw portions 35, 35 are arranged below the concave step portions 22a, 22a with a gap. At this time, the upper surface 31 of the lid 3 is substantially flush with the upper end of the frame 2.

  In this state, the lid 3 is placed on and supported by the upper surface of the receiving seat 22, and the lid 3 is not detached from the frame 2 even when a downward force is applied to the lid 1 from above. 3, the convex portions 33, 33 are immersed in the cutout portions 23, 23 of the frame body 2, so that the lid body 3 is prevented from rotating, and even if a circumferential force is applied to the lid body 3, the lid body 3. Will not shift position. Further, even if a force is applied to lift the lid 3 from above, the lid 3 is lifted from the frame 2 because the claw portion 35 of the lid 3 is engaged with the concave step portion 22 a of the frame 2. Absent.

  Further, if the lid 3 is lifted slightly by using a suction tool or the like, the convex portions 33 and 33 are displaced from the recessed position to the notches 23 and 23, so that the lid 3 can be rotated. If the lid 3 is rotated as it is, the convex portions 33, 33 that move horizontally ride on the receiving seats 22, 22, and the tips of the claw portions 35, 35 that are below the concave steps 22a, 22a It is possible to remove from the frame body 2 by shifting the position into the notches 23, 23, releasing the engagement with the both concave stepped portions 22a, and lifting the lid 3 from the rotated position.

  In the above embodiment, a fastening screw is used as a means for fixing the frame body 2, but an adhesive may be applied to the outer periphery of the frame body 2 and fixed to the inner peripheral surface of the opening 41. Moreover, the form of the illustrated lid is an example, and the lid of the present invention is not limited to this, and can be applied as a means for closing the openings of various structures and equipment including floor boards.

It is a perspective view of the upper surface side and lower surface side of the cover body and frame which comprise the cover of one Embodiment of this invention. It is the side view which fractured | ruptured and showed the half surface of the cover body and frame of FIG. They are a bottom view (A) of a lid with a lid attached to a frame body, and a main part cut end view (B) along the line BB in FIG. It is the bottom view (A) of the lid | cover of the state which rotated the cover body from the position shown in FIG. 3, and was fixed to the frame, and the principal part cutting end view (B) along the BB line. It is the member expansion | deployment perspective view (A) of the conventional lid, and sectional drawing of the state attached to opening.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover, 2 Frame, 21 Flange, 22 Seat, 22a Concave step part, 23 Notch part, 24 Hole, 3 Cover body, 31 Upper surface, 32 Concave part, 33 Convex part, 34 Column part, 35 Claw part 4 floor boards, 41 openings

Claims (2)

A flange (21) projecting outward is provided on the outer peripheral wall, and a plurality of seats (22) projecting inward and notches (23) are provided on the inner peripheral wall along the circumferential direction, and the notch (23) is provided. A cylindrical frame (2) having a concave step (22a) on the lower surface of the edge of the seat (22) facing;
It is formed in a disk shape that fits within the opening surface of the frame (2), and its upper surface (31) is provided on a flat surface, and a convex portion having a width corresponding to the notch (23) on the lower surface periphery ( 33) a lid provided with a plurality of claw portions (35) arranged along the periphery and projecting downward at the lower surface inward position adjacent to the convex portion (33) and having the tip bent outward. With body (3),
The lid (3) fitted in the opening surface of the frame (2) is placed on and supported by the seat (22), and the convex portion (33) is formed in the notch (23) of the frame (2). A lid having a configuration in which the tip of the claw portion (35) of the lid (3) is provided below the concave step portion (22a) with a gap when immersed. A pair of notches (23, 23) are provided on the inner peripheral wall at the opposite position across the center of the frame (2), and a pair of convex portions (33 33) The lid according to claim 1, wherein 33) is arranged.

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