JPH0136459Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a bathtub lid that is placed over the top of the bathtub for heat retention, and in particular, an anti-slip body made of internally plasticized vinyl chloride resin is provided on the bottom of the bathtub lid body.
In addition to preventing the lid body from sliding on the bathtub,
This invention relates to a bathtub lid that can exhibit a stable anti-slip effect over a long period of time.

Two types of proposals have been made to prevent the bathtub lid from sliding on the top of the bathtub during use.

One type has a stopper protruding from the lower surface of the lid body and this stopper is locked to the inner wall of the bathtub to prevent it from sliding.The second type is a type that has an external plasticizer on the lower surface of the lid body. This type is equipped with an anti-slip body made of a soft vinyl chloride resin sheet containing a large amount of polyvinyl chloride, and uses the adhesive properties of the soft vinyl chloride resin sheet to prevent slipping.

The present invention relates to the latter type of improvement. In other words, in the case of the above-mentioned conventional anti-slip body made of a soft vinyl chloride resin sheet containing a large amount of external plasticizer, over the years of use, the external plasticizer contained in it may be mixed with other substances such as bathtubs, etc. When it comes into contact with bathroom floors, walls, etc., it causes a migration phenomenon, and depending on the amount, the adhesiveness decreases significantly after several years of use, causing it to no longer have an anti-slip effect. . Additionally, as the plasticizer transfers, it stains objects it comes into contact with, or conversely, the transferred plasticizer dissolves pigments in objects it comes into contact with, staining the vinyl chloride resin itself and making the bathroom area unsanitary. be.

The purpose of this invention is to eliminate the above-mentioned problems with the conventional bathtub lid, and to maintain the anti-slip effect by integrally attaching an anti-slip body made of internally plasticized vinyl chloride resin to the lower periphery of the bathtub lid body. It is an object of the present invention to provide a bathtub lid that is dramatically improved and eliminates various disadvantages associated with the phenomenon of plasticizer migration.

EMBODIMENT OF THE INVENTION Hereinafter, the specific structure of this invention is demonstrated in detail based on the illustrated Example.

The present invention is a bathtub lid that covers the top surface 2 of a bathtub 1 for heat retention, and at least the bottom peripheral edge of the lid body 3 that contacts the top surface 2 of the bathtub 1 has an internal plastic that maintains high adhesiveness to the surface. It is constructed by integrally providing a non-slip body 4 made of vinyl chloride resin.

The internally plasticized vinyl chloride resin that makes up the anti-slip body 4 is made by adding a higher alkyl vinyl derivative such as lauryl vinyl ether during the polymerization of vinyl chloride and copolymerizing it into a single condensate. It has long alkyl groups as side chains in some places in the shaped molecule,
This alkyl group weakens the bonds between copolymer molecules in the same way as an external plasticizer, making it extremely flexible and maintaining high adhesiveness on the surface. The present invention focuses on these characteristics of internally plasticized vinyl chloride resin, and integrates this into the lower surface of the lid body 3 as a non-slip body 4. Unlike stopper materials, there are no problems associated with plasticizer migration or the like.

The bathtub lid of the embodiment shown in Figures 1 and 2 is a combination type bathtub lid that is used by combining two or more separated plates, and is made of plywood whose front and back sides are lined with polyester resin paint, etc. A non-slip body 4 made of internally plasticized vinyl chloride resin, which itself has a high adhesiveness on the surface, is fitted onto the peripheral edge of the lid body 3 made of a material such as the like, and is firmly fixed using an adhesive or the like as appropriate. This is what I did. This anti-slip body 4
is approximately U-shaped in cross section, and when in use, this anti-slip body 4 comes into contact with the top surface 2 of the bathtub 1, and the adhesive force of the internal plasticized vinyl chloride resin prevents the bathtub from sliding. 1, and will not easily slide or move even if force is applied from the side. This type of bathtub lid can be placed on either the front or back surface of the bathtub 1 to provide a non-slip effect.

The bathtub lid of the embodiment shown in FIGS. 3 and 4 has several rectangular core materials 5 made of plywood or the like arranged in parallel at appropriate intervals, and sheets made of soft vinyl chloride resin are inserted from both the front and back sides. This relates to a foldable bathtub lid constructed by sealing the circumference and the gap between the core materials 5 by adhesion or welding. Sheet-like anti-slip bodies 4 made of internally plasticized vinyl chloride resin are integrally attached to both edges in the longitudinal direction by means such as welding or gluing. In this embodiment as well, the anti-slip body 4 comes into contact with the top surface 2 of the bathtub 1 to prevent the lid body 3 from slipping.

In this embodiment, instead of the back sheet 6, the entire internally plasticized vinyl chloride resin sheet may be used, or alternatively, both the top sheet 7 and the back sheet 6 may be internally plasticized. Instead of using a sheet-like material made of vinyl chloride resin, it is also possible to cover the top surface 2 of the bathtub 1 with both the front and back surfaces to obtain an anti-slip effect.

The embodiment shown in FIG. 5 relates to a so-called shutter-type bathtub lid, in which hollow members 8 of an appropriate length made of hard synthetic resin are connected in parallel with each other via a connecting member 9 made of soft synthetic resin. The hollow member 8 is connected as wide as possible, and on the lower surface of the hollow member 8,
A sheet-like anti-slip body 4 made of internally plasticized vinyl chloride resin which maintains high adhesiveness on its surface by itself is integrally provided. In the case of this embodiment, the connecting member 9 may be made of internally plasticized vinyl chloride resin to cooperate with the anti-slip body 4 to prevent slipping on the top surface of the bathtub, or alternatively, the connecting member 9 may be made of internally plasticized vinyl chloride resin to prevent slipping on the upper surface of the bathtub. However, it is also possible to arrange the hollow members 8 in parallel at appropriate intervals on the upper surface of a base sheet of an appropriate size made of an internally plasticized vinyl chloride resin sheet, and to integrate the hollow members 8 with the base sheet by welding or the like.

As described above, the bathtub lid of the present invention has an anti-slip body made of internally plasticized vinyl chloride resin that maintains high adhesiveness on its surface and is attached to the periphery of the lower surface of the lid body that comes into contact with the top surface of the bathtub. Therefore, even if force is applied to the lid body during use, it does not easily slide and move, making it possible to provide a bathtub lid that is highly safe. Also, and most importantly, since it does not rely on adhesion caused by external plasticization that contains a large amount of plasticizer, the anti-slip effect is long-lasting and provides stable slip prevention over a long period of time. It is something that can be achieved. That is,
In the case of conventional anti-slip bodies containing a large amount of plasticizer,
The anti-slip effect disappears after several years as the plasticizer migrates, but in the case of the present invention, a stable anti-slip effect can always be obtained as long as the anti-slip body does not wear out due to wear or the like. Furthermore, in the case of the bathtub lid of the present invention, there is no plasticizer transfer at all, so various problems caused by the plasticizer transfer phenomenon can be solved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the bathtub lid of the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 shows another embodiment of the bathtub lid of the present invention. The back view, FIG. 4 is an enlarged sectional view taken along the line B--B in FIG. 3, and FIG. 5 is a partially enlarged sectional view showing an embodiment of a shutter type bathtub lid to which the present invention is applied. 1: bathtub, 2: top surface, 3: lid body, 4: anti-slip body, 5: core material, 6: back sheet, 7: top sheet, 8: hollow member, 9: connecting member.

Claims (1)

[Scope of utility model registration request] A bathtub lid that covers the top surface of the bathtub, which is made by adding a higher alkyl vinyl derivative to at least the peripheral edge of the bottom surface of the lid body that contacts the top surface of the bathtub during the polymerization of vinyl chloride and copolymerizing the same. A bathtub lid characterized by having an anti-slip body made of internally plasticized vinyl chloride resin that maintains high adhesiveness on the surface.