JP4113181B2 - Bathtub lid - Google Patents

Description

  The present invention relates to a bathtub lid that covers an upper surface of a bathtub for heat insulation.

  In order to improve the heat retention of hot water in the bathtub, the installation of a lid is indispensable, and it is already known that the heat insulation performance of the lid greatly affects the heat retention characteristics.

In combination type etc. bathtub lids that use a combination of a plurality of thin plate-like panels such as a set of two or a set of three, conventionally, the interior is hollowed to prevent heat conduction, or the following As described in the patent document shown in the above, a cover body is formed by laminating and integrating a decorative panel made of hard polypropylene resin on both the front and back surfaces of a heat insulating core material made of a synthetic resin foam, A structure in which an edge protector made of elastomer having an anti-slip effect is fitted to the peripheral edge of the lid body is known.
Japanese Patent Laid-Open No. 11-32930

  Thus, with the improvement of the heat insulation performance in the bathtub lid, when set in the bathtub, the temperature difference between the hot water surface side where the hot water temperature acts and the outside air side becomes extremely large, and as a result, each of the combination lids etc. There is a problem that warpage occurs in the lid plate and a gap is formed between the upper surface of the bathtub and heat dissipation.

  In particular, encapsulate a vacuum insulation material in which a core material such as short glass fiber is encapsulated with a laminate film having a gas barrier property and the inside is sealed under reduced pressure to a state close to a vacuum, in a synthetic resin foam. In the case of a highly insulated bathtub lid, the temperature difference between the inside and outside of the lid becomes even more pronounced, and the side of the lid body where the hot water acts acts more than the opposite side, resulting in the entire lid being warped and used. There is a problem that it can not withstand.

  Therefore, the object of the present invention is to effectively prevent the warping from occurring when the temperature difference between the inside and the outside of the lid body constituting the combination lid increases with the improvement of the heat insulation performance, and for a long time. An object of the present invention is to provide a bathtub lid that can be stably placed on the upper surface of the bathtub.

  If the structure of this invention for achieving the said objective is explained in full detail, the invention which concerns on Claim 1 will stick a decorative board on the front and back of the heat insulation core material which consists of a synthetic resin foam made into the panel form. In the bathtub lid having excellent heat insulation performance, a warp prevention member in which a glass fiber or carbon fiber having a low linear expansion coefficient is formed in a rough net shape is interposed on the contact surface between the heat insulation core material and the decorative plate. This is a bathtub lid.

  The invention according to claim 2 is the bathtub lid according to claim 1, wherein a vacuum heat insulating material is sealed inside the heat insulating core material.

  According to the present invention, a bathtub lid provided with a panel-like heat insulating core material made of a synthetic resin foam having excellent heat insulating properties, or a highly heat insulating type in which a heat insulating core material such as a vacuum heat insulating material is enclosed inside Even if it is a bathtub lid, a warping prevention member in which a glass fiber or carbon fiber having a low linear expansion coefficient is formed in a net-like shape on the contact surface between the heat insulating core and the decorative plate is interposed. Even if the temperature difference between the inside and outside becomes significant, it is possible to effectively prevent the lid body from warping and to obtain a high heat insulation effect that the lid body has stably over a long period of time.

  Hereinafter, an embodiment of a bathtub lid according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of the bathtub lid of the present invention, FIG. 2 is an exploded perspective view showing an embodiment of a lid main body part excluding the edge protector, and FIG. 3 is a view of the lid main body part excluding the edge protector. 4 is an exploded perspective view showing another embodiment, FIG. 4 is a partially enlarged sectional view showing an embodiment of the bathtub lid of the present invention, and FIG. 5 is a partially modified sectional view showing another embodiment of the bathtub lid of the present invention.

  In the figure, reference numeral 1 denotes a bathtub lid body that forms a combination lid and the like, and 2 is an edge protector made of elastomer having an anti-slip effect fitted on the outer peripheral portion thereof.

  3 is a heat insulating core material made of a synthetic resin foam or the like constituting the bathtub lid body 1, and 4 is a hard polypropylene resin that is pasted on both the front and back surfaces of the heat insulating core material 3 by means such as adhesion. It is a decorative board having a beautiful surface created by etc.

  In the embodiment shown in FIGS. 2 and 4, such a synthetic resin foam or the like is formed as the heat insulating core material 3, and when the decorative plates 4, 4 are pasted on both the front and back surfaces, the heat insulating core material 3 and the decorative plate are used. The warpage preventing members 5 and 5 are interposed on the abutting surfaces with the fourth and fourth surfaces.

  The heat insulating core material 3 may be a heat insulating layer having a desired thickness by laminating a plurality of panels having a required thickness, or a relatively thick panel-shaped synthetic resin foam may be used as it is. Of course, it may be used.

  As the warp preventing members 5 and 5, a glass fiber or carbon fiber having a low linear expansion coefficient formed into a net-like shape with a coarse mesh is preferably used.

  The warp preventing member 5 can be disposed simultaneously when the decorative plates 4 and 4 are bonded to both the front and back surfaces of the heat insulating core material 3, and has a rough net shape. It does not become a factor that inhibits the adhesion of the decorative plates 4 and 4, and an independent processing process is not particularly added, so there is no problem in the manufacturing process.

  Next, the bathtub lid of the embodiment shown in FIG. 3 and FIG. 5 is configured such that the vacuum heat insulating material 6 is sealed inside the heat insulating core material so as to express further excellent heat insulating properties.

  That is, in this embodiment, the heat insulating core material has a three-layer structure, the center portion of the heat insulating core material 3A located in the middle is cut out, the vacuum heat insulating material 6 is fitted into the cutout portion, and both the upper and lower surfaces thereof are fitted. Panel-shaped heat insulating core materials 3B, 3B made of synthetic resin foam or the like are laminated and integrated, and warp preventing members 5, 5 are interposed on the contact surfaces of the heat insulating core materials 3B, 3B and the decorative plates 4, 4. It is a thing.

  As described above, the vacuum heat insulating material 6 is a vacuum heat insulating material in which a core material such as a short glass fiber is encapsulated with a laminate film having a gas barrier property, and the inside is sealed under reduced pressure to a state close to vacuum. A material is preferably used.

  In the case of the bathtub lid according to this embodiment, an extremely high heat insulating effect can be obtained by the vacuum heat insulating material 6 enclosed in the heat insulating core material, and the heat insulating core materials 3B, 3B and the decorative plates 4, 4 The warp of the bathtub lid main body 1 can be effectively prevented by the low linear expansion action of the coarse net-shaped warp preventing members 5 and 5 disposed therebetween.

  As described above, the present invention provides a glass fiber or carbon fiber having a small linear expansion coefficient between the heat insulating core material made of a synthetic resin foam having excellent heat insulating performance and the decorative board that covers the outer surface of the bathtub lid. Since the warp prevention member formed in a net shape is integrated and integrated, it is possible to obtain a high heat insulating effect and to prevent warping of the bathtub lid body, and to stably stabilize the upper surface of the bathtub over a long period of time. Can be covered.

It is a perspective view which shows one Embodiment of this invention bathtub lid. It is a disassembled state perspective view which shows one Embodiment of the cover main-body part except an edge protector. It is a disassembled state perspective view which shows other embodiment of the cover main-body part except an edge protector. It is a partial expanded sectional view which shows one Embodiment of this invention bathtub lid. It is a partial expanded sectional view which shows other embodiment of this invention bathtub lid.

Explanation of symbols

1: Bathtub lid body 2: Edge protector 3: Thermal insulation core material 4: Decorative plate 5: Warpage prevention member 6: Vacuum thermal insulation material

Claims (2)

In a bathtub lid with excellent heat insulation performance, in which a decorative plate is pasted on both front and back surfaces of a heat insulating core material made of a synthetic resin foam in the form of a panel, a wire is formed on the contact surface between the heat insulating core material and the decorative plate. A bathtub lid characterized by interposing a warp preventing member in which a glass fiber or carbon fiber having a low expansion coefficient is formed into a rough net shape . The bathtub lid according to claim 1, wherein a vacuum heat insulating material is sealed inside the heat insulating core material .

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