JPS5846651Y2 - button - Google Patents

Description

[Detailed description of the invention] This invention relates to buttons and hooks (hereinafter referred to as "buttons") used as fasteners for outer garments and various belts, and in particular relates to buttons that are made to be easily noticeable. be.

Buttons that reflect external light have been commercialized for the purpose of increasing the fashionability of outer clothing and making it easier to be noticed by outsiders when walking on the road.
Wearing this type of button is useful for traffic safety, especially in environments with poor visibility, such as at night or during rain.

However, in the structure of conventional reflective buttons, fluorescent paint or paint mixed with glass powder is baked directly onto the base plate that forms the surface of the button. Not only is it difficult to use, but moisture adhesion on the surface of the button significantly reduces its reflective properties, and since the paint is in direct contact with the outside air, its optical properties are easily deteriorated due to deformation and deformation over time. was there.

The present invention solves the above-mentioned drawbacks by waterproofing the reflective surface of the button and providing a protective cover for the reflective surface. Our goal is to provide superior reflective buttons.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

The buttons of the embodiment are as shown in FIGS. 1 to 3.
The main body is formed of a back plate 1 consisting of a short cylindrical center shaft 1a and a flange 1b, and a dish-shaped base plate 2. Both plates 1 and 2 are each made of a thin metal plate and are pressed. The periphery is fixed together by the aperture.

Therefore, a circular reflective sheet 3 is placed on the surface of the base plate 2.
The reflective sheet 3 includes a first reflective film 4 made of, for example, red colored transparent vinyl, and a second reflective film 5 made of white opaque vinyl.
It is a polymeric sheet that is tightly formed into a sandwich type by hermetically welding the peripheral edges of each other.

The back surface of the first reflective film 4 has fine prism-like irregularities 4a formed by pressing to form a red reflective surface against external light. Most of the red light in the light is reflected from the back of the film in a focused manner.

In addition, the remaining red transmitted light that is not reflected is diffusely reflected on the white surface of the second reflective film 4, is focused on the first reflective film 4, and is emitted from the button together with the reflected light. .

Furthermore, a plate-shaped protective cap 6 made of transparent celluloid is attached to cover the reflective sheet 3, and the cap 6 is fitted into the collar 2a of the base plate 2. This allows it to be attached to the button body.

In the above-mentioned fastening process, as shown in FIG. 4, the reflective sheet 3 is inserted into the protective cap 6 having a U-shaped cross section, and then the head of the button body is inserted, and the cap 6 is heated while being heated by pressing. What is necessary is to deform the peripheral wall of the button by wrapping it around the back side of the button body.

Since the button of the embodiment is formed in this manner, when external light hits the surface of the button, the red light passes through the cap 6 and is converted into a parallel beam and reflected.

Therefore, during the day, the button glows red due to sunlight, and when illuminated by headlights in a dark environment such as at night, it glows red, making the button clearly visible from the outside.

Furthermore, with this button, the film 4.5 of the reflective sheet 3
Since the overlapping surface is welded and sealed, dirt, rainwater, etc. will not enter the overlapping surface, and this will prevent unevenness 4.
The optical action based on a is always maintained normally, the reflective action force of the button is not reduced, and the reflective sheet 3
Since it is protected and held by the cap 6 and is not exposed to the outside air, the shape of the unevenness 4a does not undergo deterioration and deformation, and as a result, the life of the reflective action is long.

In the configuration of the embodiment, the shape of the button base plate can be freely selected from triangular, square, rectangular, oval, etc., and the coloring of the first reflective film focuses on fashionability. In such cases, a variety of bright primary colors and patterns are appropriate, and in cases where safety when being visually recognized is important, conventional warning colors such as the above-mentioned red are preferable.

As detailed above, according to the button according to the present invention, the first reflective film 4 having the prism-like unevenness 4a molded on the back surface is placed between the periphery of the second reflective film 5 made of white opaque vinyl. A reflective sheet which is airtightly welded and polymerized is used, and the reflective sheet is held on the base plate 2 of the head of the button body by a transparent cap 6, so that the cap as the outer cover of the button is used. Even if water droplets enter the interior through the peripheral edge of the cap 6 or the cutout of the cap 6 during use, the water droplets will not adhere to the surface of the prismatic unevenness 4a, and therefore a good reflective function will always be maintained even in rainy weather. It is highly useful as a safety reflective button, especially during heavy rain or during nighttime firefighting operations.

Further, according to the present invention, the reflective sheet 3 includes a second reflective film 5 made of white opaque vinyl, as described above.
It is formed by polymerizing and welding a first reflective film 4 having prismatic irregularities 4a molded on the upper and lower surfaces thereof in an airtight manner between its peripheries, that is, the first and second reflective films 4.
, 5 are both soft thermoplastic resin films, the polymerization and welding work of the first and second reflective films 4 and 5 is carried out by
In addition to manufacturing the button body, pressure welding can be performed extremely efficiently with one touch, making it easy to manufacture.Furthermore, the uneven surface 4a is melt-welded along the welding line. Therefore, the airtight welding is simple and reliable, there is no reduction in the prism effect due to the intrusion of water droplets, and there is almost no occurrence of defective products, so this type of reflective button has excellent practical effects.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a button showing one embodiment of the present invention, Fig. 2 is a sectional view of the same side, Fig. 3 is an enlarged view of part III of Fig. 2, and Fig. 4 is a button according to the present invention. It is a figure showing the manufacturing process of such a button. 2... Base plate, 3... Reflective sheet,
4...First reflective film, 4a...
Irregularities, 5...Second reflective film, 6...
··cap.

Claims (1)

[Scope of utility model registration request] A second reflective film made of white opaque vinyl is polymerized on the back side of a first reflective film made of colored transparent vinyl and has fine prismatic irregularities formed on the back side, and By airtightly welding the peripheral edges of the second reflective film, a sandwich-type reflective sheet is formed, and the reflective sheet is spread on a base plate that forms the surface of the button, and the transparent celluloid A button characterized by having a structure in which a protective cap made by the manufacturer is placed over the reflective sheet and held by the base plate.