JP2509345Y2 - Spectacle frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is intended to suppress deterioration of eyeglass frame parts caused by dirt generated when the eyeglass frame is attached / detached or worn, secretions from the human body, and the like. The present invention relates to a spectacle frame having suitable antifouling measures.

(Prior Art) Dirt from sweat, secretions, etc. adhering to the eyeglass frame
Not only does it cause physiological discomfort, but the dirt becomes a breeding source for various bacteria, including Staphylococcus aureus, which is a skin-resident bacteria.

However, since the spectacle frame is structurally supported and contacted with the face and the head, the spectacle frame is mounted on the face and the head, so that a complete antifouling measure is not yet solved.

Therefore, methods for daily cleaning, washing, and parts replacement are generally known, and are practically used as a structural example of a spectacle frame having a replacement function for contact parts of human faces and heads, such as temples and nose pads. Japanese Patent Laid-Open No. 63-122322 discloses a pad having a pad groove formed on the inner surface of a nose pad, in which pads having different pad thicknesses are exchangeably fitted and locked.

(Problems to be solved by the invention) However, as is known in Japanese Utility Model Laid-Open No. 63-122322, the method of replacing eyeglass frame parts requires a small amount of time for replacement and the eyeglass parts themselves are small. Since it is difficult to replace it frequently because it is a thing, it is difficult to maintain its cleanliness every day, and with the method of cleaning, there is a problem of cleaning power of the cleaning device and temporary interruption of eyeglass wearing. There was a problem in terms of complexity and inconvenience.

Also, since it comes into direct contact with the skin, safety must be taken into consideration.

The present invention has been made to solve such a problem, and its purpose is to prevent sweat attached to an eyeglass frame,
An object of the present invention is to provide a spectacle frame having antifouling measures for suppressing various bacteria that proliferate with dirt such as secretions as a generation source and deterioration of parts due to the bacteria.

(Means for Solving the Problem) The present invention is a spectacle frame including one or more of a lens frame, a bridge, a nose pad, and a temple formed by cutting a plate-shaped intermediate body as its component parts. Further, the present invention provides a spectacle frame, characterized in that the plate-shaped intermediate body is formed by injection molding a molding raw material prepared by mixing an antibacterial zeolite with a hard resin material.

The invention of the present application is to prevent the occurrence of bacteria such as Staphylococcus aureus and Bacillus subtilis, as an antifouling measure against the deterioration of bacteria and parts that grow due to dirt attached to eyeglass frames such as sweat and secretions. It has been found that when an eyeglass frame component in which antibacterial zeolite for preventing is present is placed at the skin contact portion of the eyeglass frame, it is humanely safe, has an excellent antifouling effect, and suppresses deterioration of the eyeglass frame component. It was

As the antibacterial zeolite used in the present invention, zeolite in which antibacterial metal ions such as silver ions, copper ions and zinc ions are carried by ion exchange is used. Zeolite is an aluminosilicate, XM2 / nO ・ Al ₂ O.
_{3 · ySiO 2 · zH 2 O} (M represents an ion exchangeable metal ion, usually a monovalent to 2 divalent metal, n represents corresponds to the valence. Meanwhile x and y are each a metal oxide And the coefficient of silica, and z represents the number of water of crystallization.

The amount of the antibacterial zeolite used varies depending on the type of the antibacterial zeolite, the material of the eyeglass frame, the content, the method of adhering, etc., for example, in order to exert a substantial antibacterial activity when mixed with the raw material monomer. It is preferable to add 0.01% by weight or more to the raw material monomer.

Further, the portion using the antibacterial zeolite is used at at least one portion of the contact portion with the skin by handling the head or the frame, for example, at least one portion of the temple portion or the nose pad portion.

A material that contains antibacterial zeolite and serves as a substrate for eyeglass frames is a thermoplastic resin used for eyeglass frame molding, such as acetate, propionate, celluloid, epoxy resin, carbon fiber resin, silicon carbide resin, and the like.
Thermosetting resins can be used. In addition, in combination with the antibacterial zeolite, additives such as a resin curing agent, a filler, a pigment and a coloring material can be used within a range that does not affect the antibacterial action.

(Operation) An eyeglass frame part in which antibacterial zeolite is present is arranged at a portion of the eyeglass frame of the present invention which comes into contact with the skin.

In the eyeglass frame parts in which the antibacterial zeolite is present, the antibacterial zeolite exerts its antibacterial property by activating oxygen in the air, and prevents the generation and growth of Staphylococcus aureus, Bacillus subtilis, etc. It has no effect on skin and is safe.

In addition, since the substrate component of the frame is protected from the propagation of various bacteria due to dirt and the like, deterioration of the frame parts is suppressed.

(Example) Hereinafter, the present invention will be specifically described with reference to Examples.
The invention is not limited to these examples.

FIG. 1 is a perspective view of a spectacle frame 1 of the present embodiment. The spectacle frame 1 includes a lens frame 2, a bridge 3, a front portion 5 having a nose pad 4, a temple portion 6,
It is composed of a hinge portion 7 connecting the front portion 5 and the temple portion 6. The parts forming the front part 5 and the temple part 6 are plastic parts containing acetyl cellulose containing antibacterial zeolite as a base resin (matrix component), have an antibacterial action, and are worn. Even when it is worn on a person, it does not cause a reaction such as inflammation on the skin with which it comes into contact, is harmless, and can maintain a safe and clean feeling.

Next, a method for adjusting the spectacle frame 1 of this embodiment will be described.

(1) Molding of plastic sheet material 1 part by weight of sodium aluminate silicate containing silver ion which is an antibacterial zeolite is mixed with 99 parts by weight of acetyl cellulose pellets as a substrate component, and an injection molding machine (not shown)
An acetyl cellulose sheet having a width of 22 cm, a length of 64 cm and a thickness of 0.6 cm was manufactured by

Incidentally, as the molding conditions of the molding machine at this time, the cylinder temperature, the adapter temperature, the mouthpiece temperature of the nozzle for filling the molten resin into the mold is 180 ° C to 200 ° C, respectively, and the molten resin for plasticizing the pellets. The temperature was about 220 ° C., and the screw rotation speed of the injection cylinder of the molding machine was 60 rpm.

(2) Cutting from sheet material to front original plate In this way, the acetyl cellulose sheet obtained above is cut into a rectangular sheet (front original plate) 22 cm wide, 8 cm long and 0.6 cm thick. Disconnected.

(3) Manufacture of Front Part 5 Next, a front part shape of the spectacle frame 1 was obtained by hollowing out this sheet material into a predetermined frame design shape at the machining center.

Next, this front part shape is polished with a barrel grinder, dried, and then curved with a heat press machine so as to approximate the curve of the lens (generally 6 curves (about 100 mmR) are used), Further, buffing was performed to obtain the front part 5.

(4) Manufacture of Temple Section 6 and Nose Pad 4 Next, the temple 6 and nose pad 4 are manufactured by the same cutting method from the same sheet material as the method of manufacturing the front section 5 described above.
The shape is cut out and polished, and the temple portion 6,
I got the nose pad 4. The temple portion 6 was fitted with metal fittings to form an arm curve.

(5) Assembling the spectacle frame 1 Next, the pad 4 is adhered to the nose pad portion in the center of the front portion, and the temple portion 6 is attached to both end surfaces of the left and right lens frames 2 of the front portion 5 via the hinge portions 7. Assembled. As shown in FIG. 2, the hinge portion 7 includes a hinge male piece 7a and a hinge female piece.
It consists of 7b and screw 8. As for the mounting state, the hinge female piece 7b is arranged at the other end of the temple portion 6 opposite to the ear side, and the hinge male piece 7a is further arranged at the temple side end portion of the lens frame 2 of the front portion 5. The hinge male piece 7a and the hinge female piece 7b
The temple portion 6 and the front portion 5 are connected to each other by fitting and then inserting the screw 8, and the temple portion 6 can be slidably opened and closed by the hinge portion 7.

As described above, the spectacle frame 1 of this embodiment is adjusted.

FIG. 3 shows XX ′ of the temple portion 6 of the spectacle frame 1.
It is a line sectional view, and is a figure showing a mixed state of antibacterial zeolite 9 in acetyl cellulose of a substrate ingredient. As shown in this figure, in the internal structure of the spectacle frame component of this example, the antibacterial zeolite 9 is dispersed in the matrix component on average, and it is understood that the matrix component is effectively mixed with the matrix component.

(6) Evaluation method Next, regarding the antibacterial action of this spectacle frame, colony counts of Staphylococcus aureus 5.0 × 10 ⁴ cells / cm ² in a clean atmosphere at a temperature of 30 ° C. and a humidity of 70% using the bacterial count method. Bacillus subtilis was determined bacteria loss after 6 hours by attaching the colony number 3.4 × 10 ⁴ cells / cm ² into eyeglass frames, respectively.

As a result, excellent antibacterial properties were recognized, with the bacterial reduction rates of Staphylococcus aureus and Bacillus subtilis of the eyeglass frame being 93% and 85%, respectively.

(Effects of the Invention) As described above, the spectacle frame of the present invention has an excellent antifouling effect, and is particularly useful for attaching / detaching the spectacle frame or for supporting operation for stable mounting on the head. It is effective as an antifouling measure for contact parts and a skin contact part of the head (for example, nose pad and temple).

Further, regarding this antifouling, it is possible to suppress the complicated replacement of parts such as temples and nose pads as much as possible, and it is possible to extend the service life of the frame parts. Further, the antibacterial zeolite is safe for the human body even if it is included in the eyeglass frame parts in such a form. Further, the eyeglass frame of the present invention has the same function as a normal plastic frame in terms of moldability, machinability, workability, etc., and can maintain the antibacterial action even at a relatively high temperature. Even after that, the antibacterial action can be maintained.

[Brief description of drawings]

FIG. 1 is a perspective view of an eyeglass frame 1 according to this embodiment. Second
The figure is a partially enlarged view of the hinge part 7 of the spectacle frame 1 of FIG.
FIG. 3 shows X- of the temple portion 6 of the spectacle frame 1 of FIG.
X'line sectional drawing. DESCRIPTION OF SYMBOLS 1 ... Eyeglass frame, 2 ... Lens frame, 3 ... Bridge 4 ... Nose pad, 5 ... Front part, 6 ... Temple part 7 ... Hinge part, 9 ... Antibacterial zeolite

Claims (1)

(57) [Scope of utility model registration request] 1. A spectacle frame including, as a component, one or more of a lens frame, a bridge, a nose pad, and a temple formed by cutting a plate-shaped intermediate body, the plate-shaped intermediate body. An eyeglass frame, characterized in that the body is formed by injection molding of a molding raw material prepared by mixing an antibacterial zeolite with a hard resin material.