JP6175857B2 - Bath lid - Google Patents

Description

  The present invention relates to a bath lid placed on a bathtub.

  The flat bath lid is less likely to warp with heat in order to enhance heat retention, mainly a core material made of a heat insulating material such as foamed resin, and a decorative board made of hard resin that covers the front and back surfaces of the core material The reinforcing material is sandwiched between the core material and the decorative plate so as not to warp the bath lid, and the edge material (edge protector) covering the periphery of the core material.

  For example, Patent Literature 1 discloses a bath lid in which stretched olefin resin sheets are laminated on both surfaces of a resin foam as a reinforcing material, and a polypropylene resin plate is further laminated.

JP 2006-130243 A

  Conventionally, the strength to prevent the bath lid from warping due to the temperature difference between the bathtub and the bathroom relies on the decorative plate and the reinforcing material, but the decorative plate and the reinforcing material are the same size as the front and back surfaces of the core material. Since it is (area), it becomes an obstacle to weight reduction of the bath lid. Further, if reinforcing members are stacked on the front and back surfaces of the core material, the number of manufacturing steps increases.

  The present invention provides a bath lid that is lightweight and is less likely to warp the peripheral edge.

  1st invention consists of a thin-plate-shaped core material which consists of foaming resin whose compression set is 20% or less, and the resin sheet or resin film which coat | covers the front and back of the said core material, and elastically deforms when external force is applied. The peripheral edge of the core material is coated with a coating resin, the side surface of the coating resin, and the side surface of the core material, and the core material is subjected to a stress that tends to warp the core material due to a temperature difference between the inside of the bathtub and the bathroom. Is a bath lid comprising an edge material that supports the core material so as not to warp.

According to the first invention, the front and back surfaces of the core material are covered with the coating resin made of the resin sheet or the resin film. Moreover, the edge material which suppresses the curvature of a core material is provided in the surrounding surface of the core material. For this reason, compared with the structure which provides the hard resin decorative board and reinforcement member of the same area as the front and back on the front and back of a core material, a bath lid becomes lightweight and the handleability at the time of carrying etc. improves.
Further, since the core material is made of a foamed resin having a compression set of 20% or less, the core material does not undergo plastic deformation or breakage with respect to an external force applied to the bath lid during use, but only elastically deforms. For this reason, even if the core material is temporarily deformed by an external force, it immediately returns to its original state, and the bath lid does not remain locally dented or greatly deformed.
The coating resin also has elasticity that elastically deforms following the core material 11 when an external force is applied. For this reason, the coating resin does not hinder the elastic deformation in which the core material dented by the external force returns.
When the bathtub opening is covered with a bath lid when hot water is stored in the bathtub, the bath lid can be mounted on the bathtub even if stress is applied to the bath lid due to the temperature difference between the bathtub and the bathroom. Since the edge material supports the core material so that the peripheral edge of the core material placed on the placement surface (upper surface of the bath rim) does not warp, the space between the bath lid and the bath lid placement surface of the bathtub It is possible to suppress the gaps generated in the film, and to exhibit a high heat retention ability.

  A second invention is characterized in that, in the first invention, the core material and the coating resin are bonded so as to be in close contact with each other.

  According to the second invention, air does not enter between the core material and the coating resin, and the surface of the bath lid cannot be wrinkled. The surface of the bath lid can be made flat without any irregularities, and it does not impair the appearance. Moreover, the air in a bath lid expand | swells at the temperature of hot water at the time of use which covered the opening of the bathtub, and coating resin does not swell. Therefore, it looks good, and further, there is no gap between the upper surface of the bathtub rim on which the bath lid is placed, and high heat retention can be maintained.

  According to a third invention, in the first or second invention, in the edge member, the length in the direction perpendicular to the peripheral surface of the core material is longer than the length in the same direction as the thickness direction of the front and back surfaces of the core material. Is short.

  According to the third invention, even if the reinforcing member is not provided over a large area on the front and back surfaces of the core material, the peripheral edge of the core material is simply provided by providing the peripheral material with the vertically long cross section on the peripheral surface of the core material. Warpage can be suppressed. Moreover, since the rim material becomes thin, the weight can be further reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the bath lid excellent in the handleability and heat retention property is provided.

The schematic plan view of the bath lid of embodiment. (A) is a schematic perspective view of the bath lid of embodiment, (b) is AA sectional drawing in Fig.2 (a).

  Hereinafter, embodiments will be described with reference to the drawings. In the drawings, the same elements are denoted by the same reference numerals.

  FIG. 1 is a schematic plan view of a bath lid 1 of the embodiment.

  The bath lid 1 closes the opening of the bathtub and prevents the heat of the hot water stored in the bathtub from escaping to the outside. In a plan view when viewed from above, the bath lid 1 is formed, for example, in a substantially rectangular shape and is disposed so as to be passed over the upper surface of the rim of the bathtub.

  One or more bath lids 1 block the entire opening of the bathtub. In the example shown in FIG. 1, two bath lids 1 are arranged side by side in the longitudinal direction of the bathtub, and these bath lids 1 cover the entire opening of the bathtub.

  Fig.2 (a) is a model perspective view of the bath lid 1 of embodiment, FIG.2 (b) is AA sectional drawing in Fig.2 (a).

  The bath lid 1 includes a thin plate-shaped core material 11, a coating resin 12 covering the front and back surfaces of the core material 11, a side surface of the coating resin 12 and an edge material 14 covering the side surface of the core material 11, Consists of.

  The core material 11 is formed, for example, in a thin plate shape having a substantially rectangular planar shape, and has a front surface, a back surface on the opposite side, and a side surface (peripheral surface) formed along the outline of the core material 11.

  The core material 11 is made of a foamed resin that is elastically deformed when an external force is applied. The core material 11 is made of, for example, a foamed resin having a compression set calculated by a measurement method defined in JIS K6767 of 20% or less. The compression set is a strain that remains in a material when a load is applied to the material and then the load is removed.

Examples of the foamed resin having a compression set of 20% or less include polyolefin resins such as polypropylene, polyethylene, and ethylene vinyl acetate copolymer, flexible urethane foam, and polystyrene-polyolefin composite resin foam. For example, the compression set of polypropylene (EPP) foamed with beads at 30 to 60 magnifications is about 8% to 11%.
On the other hand, examples of the foamed resin having a compression set exceeding 20% include rigid urethane foam, polystyrene-based resin foamed by extrusion foaming or foaming bead method. For example, the compression set of polystyrene (EPS) foamed with beads at 30 to 60 times is about 21% to 24%. When the core material 11 is molded with a foamed resin having a compression set exceeding 20%, the dent generated in the core material 11 does not return to the original, and irregularities are generated on the front and back surfaces of the bath lid 1. Not suitable.

  The coating resin 12 covers the front and back surfaces of the core material 11. The front and back surfaces of the core material 11 are covered with the coating resin 12 and are not exposed to the outside. The coating resin 12 protects the front and back surfaces of the core material 11 and functions as a decorative surface.

  The coating resin 12 is thinner than the core material 11 and is made of, for example, a polyolefin-based resin sheet or resin film such as polypropylene or polyethylene. The coating resin 12 has elasticity that elastically deforms when an external force is applied. Moreover, the coating resin 12 has non-water permeability.

  The coating resin 12 is bonded to the front and back surfaces of the core material 11, and the front and back surfaces of the core material 11 and the coating resin 12 are in close contact. For this reason, air does not enter between the core material 11 and the coating resin 12, and the surface of the bath lid 1 cannot be wrinkled. The surface of the bath lid 1 can be made a flat surface without unevenness, and the appearance is not impaired.

  Moreover, at the time of use which covered the opening of the bathtub, the air in the bath lid 1 does not expand due to the temperature of the hot water, and the coating resin 12 does not expand. Therefore, it looks good, and furthermore, there is no gap between the top surface of the bathtub rim on which the bath lid 1 is placed, and high heat retention can be maintained.

  The edge material 14 covers the side surface of the coating resin 12 and the side surface of the core material 11. The side surface of the coating resin 12 and the side surface of the core material 11 are covered with the edge material 14 and are not exposed to the outside. Further, the edge member 14 covers a corner portion from the outer edge portion of the coating resin 12 to the side surface of the core member 11.

  The edge member 14 is made of, for example, a polyolefin-based resin such as polypropylene or polyethylene.

  The edge member 14 is provided along the side surface (peripheral surface) of the core material 11 and has a side surface portion 15 that covers the side surface of the core material 11. Further, the edge member 14 has a flange portion 16 that covers the outer edge portion of the coating resin 12.

  The collar portion 16 is formed so as to protrude from the upper end and the lower end of the side surface portion 15 in a direction parallel to the front and back surfaces of the core material 11.

  The rim material 14 continuously surrounds the peripheral surface of the core material 11, and the core placed on the bathtub rim against stress that tends to warp the core material 11 due to a temperature difference between the inside of the bathtub and the bathroom. The core 11 is supported (reinforced) so that the peripheral edge of the material 11 does not warp.

  According to the embodiment, the front and back surfaces of the core material 11 are covered with the coating resin 12 made of a resin sheet or a resin film. Further, an edge member 14 that suppresses warping of the peripheral edge of the core member 11 is provided on the peripheral surface of the core member 11.

  For this reason, compared with the structure which provides the hard resin decorative board and reinforcement member of the same area as the front and back in the front and back of the core material 11, the bath lid 1 of embodiment becomes lightweight and is handled at the time of carrying etc. Improves.

  Further, since the core material 11 is made of a foamed resin having a compression set of 20% or less, the core material 11 does not undergo plastic deformation or destruction with respect to an external force applied to the bath lid 1 during use, but only elastically deforms. For this reason, even if the core material 11 is temporarily deformed by an external force, it immediately returns to the original state, and the bath lid 1 does not remain locally depressed or deformed greatly.

  Further, the coating resin 12 also has elasticity that elastically deforms when an external force is applied. For this reason, the coating resin 12 does not hinder the elastic deformation in which the core material 11 dented by an external force returns.

  When the bathtub lid is covered with the bath lid 1 while hot water is stored in the bathtub, even if stress is applied to the bath lid 1 to warp in a concave shape due to the temperature difference between the bathtub and the bathroom, the bath in the bathtub Since the edge member 14 supports the core material 11 so that the peripheral edge of the core material 11 placed on the lid placement surface (upper surface of the bathtub rim) does not warp, the bath lid 1 and the bath lid of the bathtub A gap generated between the mounting surface and the mounting surface can be suppressed, and a high heat retaining ability can be exhibited.

  In the edge material 14, the length b in the direction perpendicular to the peripheral surface of the core material 11 is shorter than the length a in the same direction as the thickness direction of the front and back surfaces of the core material 11. That is, the width b of the collar portion 16 in the direction parallel to the front and back surfaces of the core material 11 is smaller than the width a of the side surface portion 15 in the direction perpendicular to the peripheral length.

  Even if the reinforcing member is not provided on the front and back surfaces of the core material 11 over a wide area, the peripheral edge of the core material 11 can be prevented from warping only by providing the peripheral material 14 having a vertically long cross section on the peripheral surface of the core material 11. be able to. Moreover, since the edge material 14 becomes thin, it can further reduce in weight.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Bath lid, 11 ... Core material, 12 ... Coating resin, 14 ... Edge material

Claims (3)

A thin plate-like core material made of a foamed resin having a compression set of 20% or less;
Covering the front and back surfaces of the core material, a coating resin composed of a resin sheet or a resin film that elastically deforms when an external force is applied;
The peripheral edge of the core material does not warp against the stress of covering the side surface of the coating resin and the side surface of the core material and causing the core material to warp due to the temperature difference between the bathtub and the bathroom. A rim material that supports the core material,
A bath lid made of   The bath lid according to claim 1, wherein the core material and the coating resin are bonded so as to be in close contact with each other.   3. The bath lid according to claim 1, wherein the edge member has a length in a direction perpendicular to a peripheral surface of the core material shorter than a length in the same direction as a thickness direction of the front and back surfaces of the core material.

Images