JP3566676B2 - Method for producing plastic decorative layer wave temple - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is an improvement of eyeglass parts, more specifically, a plastic decoration temple in which the decorative form is varied and beautiful, the degree of freedom of decorative expression is large, and the color tone of the plastic decorative temple is not easily discolored or peeled off. It is about a new method for manufacturing.
[0002]
[Prior art]
As is well known, the main function of eyeglasses is an eyesight correction function, and in addition to this function, eyeglasses having lightness, durability, decorativeness, etc. are required. Function tends to be emphasized.
[0003]
By the way, as a method of decorating a temple, an end piece, or the like of a plastic spectacle frame, conventionally, color decoration by plating, sculpture, three-dimensional decoration by coining, and the like are generally used.
[0004]
However, the conventional plating decoration has the advantage that the surface of plastic eyeglass parts can be given a bright metallic color, and for those seeking a sense of luxury, it can express the luxuriousness of gold, but for a long time During use, there was a disadvantage that the decorative portion of the plated portion was worn away and peeled off.
[0005]
In addition, when using the conventional sculpture decoration, although there is no fear of peeling off, there is a disadvantage that the degree of freedom of expression is small because the color change is poor and the sculpture cannot express a flat decoration. . This pointed out the same disadvantage in coining decoration.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described drawbacks, and has as its object the decorative form is rich in change and beautiful, and the degree of freedom of decorative expression is large, and the color tone may be faded or peeled off. It is an object of the present invention to provide a new method for easily and inexpensively producing a plastic decorative temple without any of them.
[0007]
[Means for Solving the Problems]
Means adopted by the present inventor to solve the above problem will be described below with reference to the accompanying drawings.
[0008]
That is, according to the present invention, a plurality of plastic base materials P ₁ , P _2, ...
This plastic laminate P is cut in the direction of the penetrating layer to form a temple mold 1 having a layered pattern 11 at the cut end,
The temple mold 1 is sandwiched between the shaping molds 3 in a heated plasticized state, and the outer peripheral edge of the temple mold 1 is clamped along the shape of the cavity 31 of the shaping mold 3 to thereby form the layered pattern 11. A plastic decoration layer wave temple is manufactured by adopting a manufacturing method of forming a temple 2 in which a turbulent layer pattern 21 is entirely or locally formed by causing a plastic change in the plastic decoration layer.
[0009]
In addition, in order to solve the above-mentioned problem, in addition to the above-mentioned means, according to the present invention, at least a part of the outer peripheral edge of the temple mold 1 is cut off to form a cut-off edge portion 12, and the shaping metal is formed. The template mold 1 having the layered pattern 11 is formed by clamping the mold along the shape of the cavity 31 of the mold 3 and smoothly integrating the outer peripheral edge including the notched edge portion 12,
The temple mold 1 obtained in this manner is sandwiched between the shaping molds 3 in a heated plasticized state, and the outer peripheral edge of the temple mold 1 is clamped along the shape of the cavity 31 of the shaping mold 3 to clamp the mold. A plastic decorative layer wave temple is manufactured by adopting a manufacturing method of causing a plastic change in the layered pattern 11 and forming the temple 2 in which the turbulent layer pattern 21 is entirely or locally formed.
[0010]
Still further, according to the present invention, in order to solve the above-described problem, in addition to the above-described means as necessary, the insert mold 4 is press-fitted into the base end side of the temple 2 sandwiched between the shaping molds 3. By pulling out the insert mold 4 from the temple 2, a plastic decorative layer wave temple is manufactured by adopting a manufacturing method in which an insertion hole 22 into which a core member is to be inserted is opened in the temple 2.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described below in more detail with reference to the drawings.
[0012]
"First Embodiment"
The manufacturing method according to the first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, four plastic substrates P _{1 to} P ₄ (in this embodiment, a cellulose acetate resin is used) having different color tones are stacked, and a solvent (for example, ethylene glycol monomethyl ether acetate or the like) is provided on the joint surface. ) Is applied and subjected to a heat and pressure treatment to join and integrate. By this laminating step, a plate-shaped plastic laminated material P as shown in FIG. 2 is produced, and this plastic laminated material P is divided into rods having a constant width to obtain straight rod-shaped temple molds 1,.
[0013]
The temple Motogata 1, as described above, color tone are produced by integrally bonding four plastic matrix P ₁ to P ₄ of the laminated different in color tone change of the laminated structure by the plurality of resin layers Thus, a layered pattern 11 is created.
[0014]
FIG. 3 shows a step of heat-pressing the straight rod-shaped temple mold 1 obtained in the step of FIG. The shaping mold 3 for the heat press is provided with a heating mechanism, and a cavity 31 for shaping the temple 1 into an arbitrary shape such as a waveform is formed on the inner surface.
[0015]
Then, the outer peripheral edge of the temple mold 1 is slightly cut and arranged so as to be positioned in the cavity 31 in the shaping mold 3, and then the shaping metal heated (to about 200 to 210 ° C.) by the heating mechanism. When pressure is applied to the mold 3 in a state where the mold 3 is in contact with the outer peripheral surface of the temple mold 1, the state shown in FIG. 4 is obtained. At this time, since the temple mold 1 made of cellulose acetate resin is heated and plasticized by the shaping mold 3, the main body can be plastically changed into a waveform by conforming to the shape of the cavity 31.
[0016]
After pressurizing in this way, the shaping mold 3 is retracted, and then the plasticized temple mold 1 is cooled and hardened, so that the temple 2 as shown in FIG. It is possible to form the turbostratic pattern 21 to be presented.
[0017]
In the above-described manufacturing method, a temple mold 1 is formed from a plastic laminated material P having a different color tone, and the temple mold 1 is formed by a change in the color tone of the laminated plastic substrates P ₁ , P ₂ . Has been produced, and a step of deforming the layered pattern 11 with the shaping mold 3 to produce a random layer pattern 21 is adopted. Therefore, a beautiful random layer pattern 21 rich in color tone change can be easily formed on the surface of the temple 2. The high-quality temple 2 provided with such a turbostratic pattern 21 can be obtained at low cost with only the plastic laminate material P.
[0018]
Further, as shown in FIG. 6, the insert mold 4 is pressed into the base end side of the temple 2 sandwiched between the shaping molds 3, and the insert mold 4 is pulled out from the temple 2, thereby obtaining the core. The insertion hole 22 into which the metal member is to be inserted can be opened in the temple 2, and the temple can be given rigidity and reinforced by inserting the core metal member into the insertion hole 22 thus opened.
[0019]
"Second embodiment"
The manufacturing method according to the second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, at least a part of the outer peripheral edge of the temple mold 1 (in this embodiment, three places from above and below) is cut off to form the cut edge portion 12.
[0020]
Then, similarly to the first embodiment, the temple mold 1 is arranged so as to be positioned in the cavity 31 in the shaping mold 3 as shown in FIG. 8, and then the shaping mold heated by the heating mechanism. In 3, when pressure is applied in a state of being in contact with the outer peripheral surface of the temple mold 1, a state as shown in FIG. 9 is obtained. At this time, the outer peripheral edge including the notched edge portion 12 is smoothly integrated, thereby causing a plastic change in the layered pattern 11 to form the temple 2 in which the turbostratic pattern 21 is entirely or locally created. it can. Although the illustrated cavity 31 is formed in a substantially linear shape, it may be formed in a wavy shape.
[0021]
Although not shown, similarly to the first embodiment, the insert mold 4 is pressed into the base end side of the temple 2 sandwiched between the shaping molds 3 and the insert mold 4 is pulled out from the temple 2. Thereby, the insertion hole 22 into which the core metal member is to be inserted can be opened in the temple 2.
[0022]
Although the present invention is generally configured as described above, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the claims, for example, The material used for the plastic substrate is not limited to the cellulose acetate resin, but may be a cellulose propionate resin, which is the same cellulosic resin, or another thermoplastic plastic such as a polypropylene resin or a polyethylene resin.
[0023]
The shape of the cavity 31 of the shaping mold 3 is not limited to a wave shape as long as the shape of the layered pattern 11 can be deformed, and may be another shape or may be formed with irregularities on the surface. Furthermore, in addition to the four-layer plastic laminate P having a different color tone, it is also possible to employ two, three, or five or more layers of the plastic laminate P, and any of these modifications is also applicable to the present invention. It goes without saying that it belongs to the technical scope.
[0024]
【The invention's effect】
As described above with reference to the embodiments, in the present invention, a completely new decorative expression is realized by skillfully plastically deforming the layered pattern of a plastic eyeglass part made of a plastic laminated material having a different color tone. The random layer pattern formed in this manner is rich in color tone change, beautiful and has a high degree of freedom in decorative expression, and has no fear of fading or peeling off in its color tone.
[0025]
Therefore, by constituting the temple with such a plurality of plastic eyeglass parts having a decorative effect, it becomes possible to sufficiently satisfy the high demands of consumers for eyeglass design, and furthermore, such a turbostratic pattern is applied. Since high-quality spectacle parts can be obtained at low cost using only a plastic laminate, the value of use in industry is extremely large.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view illustrating a part of a manufacturing process according to a first embodiment of the present invention.
FIG. 2 is an explanatory perspective view illustrating a part of a manufacturing process according to the first embodiment of the present invention.
FIG. 3 is a front view illustrating a part of a manufacturing process according to the first embodiment of the present invention.
FIG. 4 is a front view illustrating a part of a manufacturing process according to the first embodiment of the present invention.
FIG. 5 is a perspective view illustrating a temple manufactured by the manufacturing method according to the first embodiment of the present invention.
FIG. 6 is a front view illustrating a modification of the manufacturing process according to the first embodiment of the present invention.
FIG. 7 is a perspective view illustrating a temple mold according to a second embodiment of the present invention.
FIG. 8 is a front view illustrating a part of a manufacturing process according to a second embodiment of the present invention.
FIG. 9 is a front view illustrating a part of a manufacturing process according to a second embodiment of the present invention.
FIG. 10 is a perspective view illustrating a temple manufactured by a manufacturing method according to a second embodiment of the present invention.
[Explanation of symbols]
1 Temple Motogata 11 layered pattern 12 missing incisal portion 2 temples 21 turbostratic pattern 22 insertion hole 3 shaping mold 31 cavity 4 insert metal mold P plastic laminate _P 1 _· P 2 _· P 3 · _{P 4} plastic matrix

Claims (3)

A plurality of plastic bases P ₁ , P _2, ... Are laminated with different colors and joined together to form a plastic laminate P.
This plastic laminate P is cut in the direction of the penetrating layer to form a temple mold 1 having a layered pattern 11 at the cut end,
The temple mold 1 is sandwiched between the shaping molds 3 in a heated plasticized state, and the outer peripheral edge of the temple mold 1 is clamped along the shape of the cavity 31 of the shaping mold 3 to thereby form the layered pattern 11. A method for producing a plastic decorative layer wave temple, characterized in that a temple 2 in which a plastic change is caused to form a turbulent layer pattern 21 entirely or locally is formed. At least a part of the outer peripheral edge of the temple mold 1 is cut off to form a notched edge portion 12, and the outer peripheral edge including the notched edge portion 12 is clamped along the shape of the cavity 31 of the shaping mold 3. A temple mold 1 having a layered pattern 11 is formed by smooth integration,
The temple mold 1 obtained in this manner is sandwiched between the shaping molds 3 in a heated plasticized state, and the outer peripheral edge of the temple mold 1 is clamped along the shape of the cavity 31 of the shaping mold 3 to clamp the mold. 2. The method according to claim 1, wherein the temple is formed by causing a plastic change in the layered pattern and forming the turbulent layer pattern entirely or locally. The insert mold 4 is press-fitted into the base end side of the temple 2 sandwiched between the shaping molds 3, and the insert mold 4 is pulled out from the temple 2, so that the insertion hole 22 into which the core member is to be inserted. The method for producing a plastic decorative layer wave temple according to claim 1, wherein the wave temple is set up on a temple 2.

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