JP6831086B2 - lid - Google Patents

Description

The present invention relates to a lid that is detachably attached to an opening provided in a member for surrounding water.

Conventionally, as a lid that is detachably attached to an opening such as an inspection port provided in a bathroom and closes the opening, for example, the lid described in Cited Document 1 is known. The lid described in Reference 1 is a rectangular plate-shaped member, and can be attached to an inspection port formed by a member (angle) fixed to a bathtub by screwing with a plurality of screws. There is.

In such a lid, since it is necessary to provide a sealing material at all the positions where the screws are attached, there is a problem that the number of parts is large and the manufacturing cost is high. Further, in order to perform the inspection through the inspection port, the operator has to remove the lid from the inspection port, but at this time, it is necessary to loosen all the screws with a tool such as a screwdriver. In addition, after the inspection is complete, all screws need to be tightened to reattach the lid to the inspection port. Therefore, there is also a problem that the work cost of attaching and detaching the conventional lid is high. These problems are the same for lids of the type that are attached to the inspection port by, for example, resin fasteners instead of screws.

Japanese Unexamined Patent Publication No. 2004-215933

The present invention has been devised in view of the above circumstances. That is, an object of the present invention is to provide a lid that can be easily attached and detached.

The present invention is a lid that is detachably attached to an opening provided in a member for surrounding water.
A lid body with a front and a back,
An engaging portion provided on the back surface of the lid body and engaging with the edge portion of the opening,
It includes a grip portion provided on the front surface of the lid body.

According to the present invention, since the engaging portion is provided on the lid body, it is possible to provide a lid that is easier to put on and take off than before.

The engaging portion is integrally provided on the back surface of the lid body.
The grip portion may be integrally provided on the front surface of the lid body.

In this case, it is possible to provide a lid having a small number of component parts.

In the lid as described above, the engaging portion may be composed of a plurality of engaging claws. In this case, the lid can be firmly attached to the inspection port.

At least one of the plurality of engaging claws is arranged at a position corresponding to the first edge portion of the opening.
The grip portion may be provided on the outer peripheral side of the lid body with respect to the at least one engaging claw.

In this case, since the force applied to the grip portion is effectively transmitted to at least one engaging claw, the work of removing the lid from the inspection port is easy.

Some of the engaging claws among the plurality of engaging claws may be arranged at positions corresponding to the second edge portion of the opening facing the first edge portion. In this case, the lid body can be firmly attached by the inspection port.

On the front surface of the lid body, a recess extending in a direction corresponding to the first edge portion of the opening is formed on the inner peripheral side of the lid body with respect to the at least one engaging claw. good. In this case, since the force applied to the grip portion effectively displaces the engaging claws due to the bending of the recess, the work of removing the lid from the inspection port is easier.

A seal portion may be provided on the back surface of the lid body at a position corresponding to the edge portion of the opening. In this case, it is possible to prevent liquids (particularly water and hot water) from entering the inspection port.

Since the engaging portion is provided on the lid body, it is possible to provide a lid that is easier to put on and take off than before.

It is a schematic perspective view of the front side which shows the lid by one Embodiment of this invention. It is the schematic perspective view of the back side which shows the lid of FIG. It is a schematic front view which shows the inspection port to which the lid of FIG. 1 is attached. It is a schematic front view which shows the lid of FIG. It is a schematic rear view which shows the lid of FIG. It is a schematic top view which shows the lid of FIG. It is a schematic bottom view which shows the lid of FIG. It is a schematic side view which shows the lid of FIG. FIG. 5 is a cross-sectional view taken along the line AA of FIG. FIG. 5 is a cross-sectional view taken along the line BB of FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of the front side showing the lid 100 according to the embodiment of the present invention, and FIG. 2 is a schematic perspective view of the back side showing the lid 100 of FIG. Further, FIG. 3 is a schematic front view showing an inspection port 2 to which the lid 100 of FIG. 1 is attached.

The lid 100 of the present embodiment is detachably attached to an opening provided in the member 1 for water circulation, such as the inspection port 2 of the bathroom as shown in FIG. As shown in FIGS. 1 and 2, the lid 100 is integrally provided on the lid main body 10 having the front surface 11 and the back surface 12, and the back surface 12 of the lid main body 10, and is provided on the water-circling member 1. It is provided with an engaging claw 20 as an engaging portion that engages with the edge portion 3 of the inspection port 2, and a grip portion 30 integrally provided on the front surface 11 of the lid main body 10. In such a lid 100, the back surface 12 provided with the engaging claw 20 faces the inside of the inspection port 2, and the front surface 11 provided with the grip portion 30 faces the front side, and the lid 100 faces the inspection port 2. It will be installed.

Next, the lid 100 according to the present embodiment will be described in more detail with reference to FIGS. 4 to 10. 4 is a schematic front view of the lid 100, FIG. 5 is a schematic rear view of the lid 100, FIG. 6 is a schematic top view of the lid 100, FIG. 7 is a schematic bottom view of the lid 100, and FIG. Is a schematic side view of the lid 100, FIG. 9 is a sectional view taken along line AA of FIG. 5, and FIG. 10 is a sectional view taken along line BB of FIG.

As shown in FIGS. 4 and 5, the lid 100 has a rectangular shape with rounded corners as a whole. Here, for convenience of explanation, as shown in FIG. 4, an XYZ three-dimensional Cartesian coordinate system with the center of the lid 100 as the origin O is defined. In this coordinate system, the axis from left to right in FIG. 4 passing through the origin O is the X axis, the axis from bottom to top is the Y axis, and the axis from the back to the front is the Z axis. Further, in the present specification, the positive direction of the Y-axis is referred to as an upward direction, and the negative direction of the Y-axis is referred to as a downward direction.

Based on such a coordinate system, the lid 100 as a whole has a rectangular shape that is symmetrical with respect to the X-axis and the Y-axis. Then, of the edge portions corresponding to the four sides of the rectangle, the upper edge portion 13 and the lower edge portion 14 extend parallel to the X axis, and the remaining pair (left and right) arranged with the Y axis in between. ) The edge extends parallel to the Y axis. The lid 100 has a contour slightly larger than the contour of the inspection port 2 to be attached when viewed from the Z-axis direction, so that the inspection port 2 can be completely closed when the lid 100 is attached to the inspection port 2. It has become.

As shown in FIGS. 4, 9 and 10, the front surface 11 of the lid main body 10 has a first recess 41 extending in a direction parallel to the X axis in the vicinity of the upper edge portion 13 and the lower edge portion 14. The second recess 42 is provided respectively. As shown in FIG. 9, these recesses 41 and 42 are formed by bending the panel-shaped member constituting the lid main body 10 in a U-shape toward the back surface side (left side in FIG. 9). Specifically, as shown in FIG. 9, the first recess 41 formed in the vicinity of the upper edge portion 13 is composed of three walls. That is, the first recess 41 includes a first upper wall 41u located above and parallel to the XZ plane, a first lower wall 41d located below and facing the first upper wall 41u, and a first upper wall 41u. It is composed of a first bottom wall 41b parallel to the YX plane, which connects the ends of the first lower wall 41d on the negative side of the Z axis. The second recess 42 also has substantially the same configuration. That is, as shown in FIG. 9, the second recess 42 is formed in the vicinity of the lower edge portion 14, is located above the second upper wall 42u parallel to the XZ plane, and is located below and is the second. A second lower wall parallel to the XY plane, which connects the second lower wall 42d, which faces the upper wall 42u and is parallel to the XZ plane, and the ends of the second upper wall 42u and the second lower wall 42d on the negative side of the Z axis. It is composed of a bottom wall 42b. The cross-sectional shape (see FIG. 9) of these recesses 41 and 42 when cut in a plane parallel to the YZ plane is substantially constant over the entire length of the recesses 41 and 42 (regardless of the X coordinate). It has become.

As shown in FIGS. 9 and 10, since each of the walls 41u, 41b, 41d, 42u, 42b, and 42d of the present embodiment is made of a resin plate, some degree of bending deformation is allowed. .. In particular, as will be described later, the second lower wall 42d bends and deforms when the lid 100 is attached to and detached from the inspection port 2 due to the force acting on the grip portion 30.

On the other hand, as shown in FIGS. 2 and 4, on the back surface 12 of the lid main body 10, the lid main body 10 is located near a pair of edge portions parallel to the Y axis (edge portions in the left-right direction in FIGS. 2 and 4). Two structures 17, 18 are provided for improving the mechanical strength of the above. Specifically, one structure 17 is provided near the edge of the pair of edges on the positive side of the X-axis (left side in FIGS. 2 and 4), and is provided in the negative direction of the Z-axis from the back surface 12. It has a pair of parallel plates 17p that rise and extend in the Y-axis direction, and a plurality of ribs 17r that connect the space sandwiched by the pair of parallel plates 17p in the X-axis direction. The other structure 18 is provided near the edge of the pair of edges on the negative side of the X-axis (right side in FIGS. 2 and 4), rises from the back surface 12 in the negative Z-axis direction, and extends in the Y-axis direction. It has a pair of parallel plates 18p extending in the direction of the sea, and a plurality of ribs 18r connecting the space sandwiched by the pair of parallel plates 18 in the X-axis direction. The ribs 17r and 18r are arranged at equal intervals along the Y-axis direction.

Next, the engaging claw 20 provided on the back surface 12 of the lid main body 10 will be described. The engaging claw 20 is for engaging with the edge portion of the inspection port 2 so that the lid 100 can be maintained in a state of being attached to the inspection port 2. Returning to FIG. 5, a total of five engaging claws 20 are provided in the vicinity of the upper edge portion 13 and the vicinity of the lower edge portion 14 of the lid main body 10. Specifically, the three engaging claws 20u are substantially equally spaced along the direction parallel to the X axis in the vicinity of the upper edge portion 13 of the lid body 10 on the upper surface of the first upper wall 41u of the first recess 41. The remaining two engaging claws 20u are constant along the direction parallel to the X axis in the vicinity of the lower edge portion 14 of the lid body 10 on the lower surface of the second lower wall 42d of the second recess 42. It is provided at intervals of. More specifically, as shown in FIG. 5, in the three engaging claws 20u, the central engaging claw 20u is arranged on the Y axis, and the engaging claws 20d on both sides thereof are equal to each other from the Y axis. The two engaging claws 20d are arranged so as to be spaced apart from each other so as to be evenly spaced from the Y axis. After all, the three engaging claws 20u provided near the upper edge portion 13 of the lid main body 10 and the two engaging claws 20d provided near the lower edge portion 14 of the lid main body 10 are Y-axis, respectively. It is placed on the target. Of course, the arrangement of the engaging claws 20 is not limited to the above aspects. Since the engaging claws 20 engage with the inspection port 2, the number and position thereof are appropriately determined according to the shape and dimensions of the inspection port 2.

The shape of the engaging claw 20 of this implementation is as follows. That is, as shown in FIGS. 9 and 10, all of the three engaging claws 20u provided on the upper surface of the first upper wall 41u of the first recess 41 are in the positive direction of the Y axis from the first upper wall 41u. It has an engaging surface 20u1 that rises substantially vertically toward it, and a tapered portion 20u2 that descends from the upper end portion of the engaging surface 20u1 to the first upper wall 41u on the negative side of the Z axis. On the other hand, the two engaging claws 20d provided on the lower surface of the second lower wall 42d of the second recess 42 both have an engaging surface 20d1 rising substantially vertically from the second lower wall 42d in the negative direction of the Y axis. And a tapered portion 20d2 that rises from the engaging surface 20d1 to the second lower wall 42d on the negative side of the Z axis. In other words, each engaging claw 20 (20u, 20d) with respect to the engaging surfaces 20u1 and 20d1 parallel to the XY plane and the first upper wall 41u to the second lower wall 42d when viewed from the X-axis direction. It has an acute angle and has tapered portions 20u2 and 20d2 that reach the tips of the engaging surfaces 20u1 and 20d1.

Further, from the upper end of the three engaging claws 20u provided on the upper surface of the first upper wall 41u of the first recess 41, the two engaging claws 20d provided on the lower surface of the second lower wall 42d of the second recess 42. The distance to the lower end (distance in the Y-axis direction) d1 (see FIG. 8) is slightly larger than the separation distance D (see FIG. 3) between the upper edge 3a and the lower edge 3b of the inspection port 2 to be mounted. It has become. On the other hand, from the base portion of the three engaging claws 20u, that is, the upper surface of the first upper wall 41u of the first recess 41, the root portion of the two engaging claws 20d, that is, the second lower wall 42d of the second recess 42. The distance (distance in the Y-axis direction) d2 (see FIG. 8) to the lower surface is slightly smaller than the separation distance D.

The grip portion 30 provided on the front surface 11 of the lid main body 10 has a predetermined length along the X-axis direction, and is provided integrally with the lid main body 10 immediately below the second lower wall 42d of the second recess 42. Has been done. Specifically, as shown in FIG. 10, the grip portion 30 has a U-shaped cross-sectional shape protruding from the front surface 11 of the lid main body 10 in the positive direction of the Z axis, and the upper wall portion 31u Is formed so as to be continuous with the second lower wall 42d of the second recess 42. As a result, the force applied to the grip portion 30 is directly transmitted to the second lower wall 42d of the second recess 42.

Further, as shown in FIGS. 2, 5, 9 and 10, a seal portion 50 is provided on the back surface 12 of the lid main body 10 in the vicinity of the peripheral edge portion thereof. When the lid 100 is attached to the inspection port 2, the seal portion 50 comes into close contact with the edge region 3e of the inspection port 2 so that liquid (particularly water or hot water) can be brought into the inspection port 2. This is to prevent invasion into the inside. The edge region 3e of the inspection port 2 is a region on the front side in FIG. 3, and means a region having a certain width including the edge portion 3 and a slight outer peripheral region of the edge portion 3. (See FIG. 3). As the material of the seal portion 50, for example, rubber is preferably used, but the material is not limited to this, and any material that can be in close contact with the edge region 3e of the inspection port 2 may be used.

As shown in FIG. 5, a mounting surface 15 for mounting the seal portion 50 is provided in the vicinity of the peripheral edge portion of the lid main body 10 without interruption over the entire circumference of the peripheral edge portion. The mounting surface 15 of this embodiment is configured as a flat surface parallel to the XY plane. Then, a band-shaped sealing material is attached to the mounting surface 15 with an adhesive. Of course, the seal portion 50 may be integrally formed with the lid body 10 by, for example, two-color molding.

Further, as shown in FIGS. 4 to 10, the lid main body 10 has a second seal portion 16 on the peripheral edge portion. The second seal portion 16 is for making it difficult for liquid (particularly water or hot water) to reach the seal portion 50 by adhering to the edge region 3e of the inspection port 2 on the outer circumference of the seal portion 50. is there. As shown in FIGS. 9 and 10, the second seal portion 16 formed on the lower edge portion 14 of the lid main body 10 has components in the Y-axis negative direction and the Z-axis negative direction from the portion below the seal portion 50. It is inclined and extends in the holding direction (lower left direction in FIGS. 9 and 10). On the other hand, as shown in FIG. 9, the second seal portion 16 formed on the upper edge portion 13 of the lid body 10 has components in the Y-axis positive / negative direction and the Z-axis negative direction from the portion above the seal portion 50. It extends in an inclined direction (upper left direction in FIG. 9). The tip 16t of the second seal portion 16 is located on the negative side of the Z axis with respect to the seal portion 50. The second seal portion 16 is similarly provided on a pair of edge portions facing each other with the Y axis interposed therebetween. That is, it extends from the outer periphery of the seal portion 50 so as to have a component in the direction away from the origin and a component in the negative direction of the Z axis, and the tip 16t thereof is located on the negative side of the Z axis with respect to the seal portion 50. doing. The second seal portion 16 is made of the same resin material as the lid main body 10, but has appropriate elasticity because its thickness is thin enough to be flexed and deformed relatively easily. ing.

Further, as shown in FIGS. 1, 2, 4, 5, and 7, the second seal portion 16 is provided with a notch 16n in a region overlapping the negative Y axis when viewed from the Z axis direction. ing. The notch 16n is for discharging the liquid that has entered the space formed between the inner surface (the surface on the back surface 12 side) of the second seal portion 16 and the edge region 3e of the inspection port 2 to the outside. is there. As shown in FIGS. 4 and 5, the notch 16n of the present embodiment has a semicircular shape.

Next, the operation of the lid 100 according to the present embodiment as described above will be described.

The lid 100 is press-fitted into the inspection port 2 in that state after the grip portion 30 is located below and the front surface 11 is adjusted to face the front side (as shown in FIG. 4). At the time of press fitting, the tapered portion 20u2 of the three engaging claws 20u provided on the upper surface of the first upper wall 41u of the first recess 41 and the lower surface of the second lower wall 42d of the second recess 42 2 are provided. The tapered portion 20d2 of the two engaging claws 20d interferes with the upper edge portion 3a and the lower edge portion 3b of the inspection port 2, respectively. At this time, by pressing the lid 100 against the inspection port 2 with a larger force, the upper edge portion 3a and the lower edge portion 3b of the inspection port 2 ride on the tapered portions 20u2 and 20d2 of the engaging claws 20u and 20d, respectively. As a result, the first upper wall 41u bends downward and the second lower wall 42d bends and deforms upward. Then, by pressing the lid 100 against the inspection port 2 more strongly, the upper edge portion 3a and the lower edge portion 3b of the inspection port 2 get over the tips of the engaging claws 20u and 20d, respectively. As a result, the engaging claws 20u and 20d are engaged with the edges 3 (3a and 3b) of the inspection port 2, and the lid 100 is attached to the inspection port 2. Since the mechanical strength of the lid body 10 is improved by the presence of the structures 17 and 18, the lid body 10 is not significantly deformed or damaged in the process of mounting.

When the lid 100 is attached, the seal portion 50 is pressed against the edge region 3e of the inspection port 2, and the inspection port 2 is hermetically sealed from the outside. Further, at this time, the region including the tip 16t of the second seal portion 16 is pressed against the edge region 3e of the inspection port 2 on the outer circumference of the seal portion 50. As a result, the second seal portion 16 is brought into close contact with the edge region 3e of the inspection port 2 while being appropriately bent and deformed. As a result, the inspection port 2 is doubly sealed by the two sealing portions 50 and 16. In addition, a liquid (particularly water or hot water) may enter the space formed between the inner surface (the surface on the back surface 12 side) of the second seal portion 16 and the edge region 3e of the inspection port 2. However, the invading liquid is smoothly discharged to the outside through the notch 16n provided in the second seal portion 16. As a result, it is possible to prevent the edge region 3e of the inspection port 2 from becoming unsanitary.

On the other hand, when removing the lid 100 from the inspection port 2, the operator may pull the grip portion 30 toward the front side (front side in FIG. 4). At this time, the force for pulling the grip portion 30 is transmitted to the second lower wall 42d of the second recess 42, which causes the second lower wall 42d to bend and deform upward. Along with this bending deformation, the two engaging claws 20d provided on the lower surface of the second lower wall 42d are displaced upward. As a result, the lower ends of the two engaging claws 20d get over the lower edge portion 3b of the inspection port 2 in the pulling direction (front direction in FIG. 3), and the two engaging claws 20d and the lower edge portion 3b of the inspection port 2 are brought together. The engagement is released. After that, the lid 100 is pulled down by the operator, and the three engaging claws 20u provided on the upper surface of the first upper wall 41u of the first recess 41 and the upper edge portion 3a of the inspection port 2 are easily connected. The engagement is released.

Then, after the predetermined inspection via the inspection port is completed, the lid 100 may be attached to the inspection port 2 according to the attachment procedure described above. As a result, the inspection port 2 is closed again by the lid 100.

According to the lid 100 as described above, since the lid main body 10 and the engaging claw 20 are integrally provided, it is possible to provide a lid having a smaller number of parts than the conventional one and easy to attach / detach. it can.

Further, since the lid body 10 is provided with a plurality of engaging claws 20 (20u, 20d), the lid 100 can be firmly attached to the inspection port 2.

Two engaging claws 20d are arranged in the vicinity of the lower edge portion 14 of the lid main body 10, and a grip portion 30 is provided below these two engaging claws 20d. As a result, the force applied to the grip portion 30 is effectively transmitted to the two engaging claws 20d, so that the work of removing the lid 100 from the inspection port 2 is easy.

Further, three engaging claws 20u are arranged in the vicinity of the upper edge portion 13 of the lid body 10, that is, at a position corresponding to the upper edge portion 3a of the inspection port 2. Therefore, the lid 100 can be firmly attached to the inspection port.

The front surface 11 of the lid body 10 is formed with a recess 42 extending above the two engaging claws 20d along the arrangement direction (X-axis direction) of the engaging claws 20d. Therefore, when the recess 42 bends, the force applied to the grip portion 30 effectively displaces each engaging claw 20d, so that the work of removing the lid 100 from the inspection port 2 is easier. Is.

Further, on the back surface 12 of the lid main body 10, a seal portion 50 is provided at a position corresponding to the edge portion 3 of the inspection port 2. Therefore, it is possible to prevent the liquid from entering the inside of the inspection port 2.

In the above description, an example in which the engaging claw 20 is integrally provided on the back surface 12 of the lid main body 10 has been described, but the present invention is not limited to such an embodiment. For example, in another embodiment, a lid is formed by forming a plurality of appropriate engaging members separately from the lid main body instead of the engaging claws 20 and assembling these engaging members to the lid main body. You may. In this case, each engaging member is configured so that when the lid body is attached to the inspection port 2, it does not need to be individually engaged with the edge portion of the inspection port 2.

1 Water-related member 2 Inspection port 3 Edge 3a Upper edge 3b Lower edge 3e Edge area 10 Lid body 11 Front surface 12 Back surface 13 Upper edge 14 Lower edge 15 Mounting surface 16 Second seal 16t Tip 17 , 18 Structure 17p, 18p Parallel plate 17r, 18r Ribs 20, 20d, 20u Engagement claws 20d1, 20u1 Engagement surface 20d2, 20u2 Tapered part 30 Grip part 31u Upper wall part 41 First recess 41b First bottom wall 41d 1st lower wall 41u 1st upper wall 42 2nd recess 42b 2nd bottom wall 42d 2nd lower wall 42u 2nd upper wall 50 Sealed portion 100 Lid

Claims (4)

A lid that can be attached and detached to the opening provided in the water-related member.
A lid body with a front and a back,
An engaging portion provided on the back surface of the lid body and engaging with the edge portion of the opening,
A grip portion provided on the front surface of the lid body is provided .
The engaging portion is composed of a plurality of engaging claws.
At least one of the plurality of engaging claws is arranged at a position corresponding to the first edge portion of the opening.
The grip portion is provided on the outer peripheral side of the lid body with respect to the at least one engaging claw.
On the front surface of the lid body, a recess extending in a direction corresponding to the first edge portion of the opening is formed on the inner peripheral side of the lid body with respect to the at least one engaging claw. A lid that features that. The engaging portion is integrally provided on the back surface of the lid body.
The lid according to claim 1, wherein the grip portion is integrally provided on the front surface of the lid body. Claim 1 or claim 1, wherein some of the engaging claws among the plurality of engaging claws are arranged at positions corresponding to the second edge portion of the opening facing the first edge portion. The lid according to 2 . Any of claims 1 to 3 , wherein a seal portion is provided on the back surface of the lid body so as to correspond to the edge portion of the opening and at a position on the front surface side with respect to the engaging claw. The lid described in item 1.