JP3096630B2 - Glasses Temple - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plastic temple for spectacles which is partially covered with a metal or plastic thin plate having higher rigidity than the temple material.
The purpose of the present invention is to increase the gripping force of the temple on the wearer's head and prevent the eyeglasses from shifting.

[0002]

2. Description of the Related Art It is well known that eyeglass temples include a metal temple whose main part is made of metal and a plastic temple whose main part is made of plastic. Various methods have been conventionally devised for obtaining an appropriate gripping force on the head when wearing glasses.

[0003] Looking at this with respect to a plastic temple, first, there is one in which an elastic member is provided in a portion of the temple near the lens. As an improvement, an elastic member is provided on the temple near the lens as shown in Japanese Utility Model Publication No. 7-31217. There is one that adjusts the rebound elastic force when the temple is expanded.

On the other hand, as disclosed in JP-A-6-175085,
Frames are provided only at both ends of the lens, transmitting the repulsive elastic force of the lens curved surface to the temple, and reducing the temple's cross-sectional area toward the rear of the pre-curved temple, maintaining a close gripping force on the head Some try.

[0005]

According to the first conventional example, an elastic member and a mechanism for adjusting its elasticity are provided at the front of the temple, that is, a portion relatively close to the eye, so that the structure is complicated. Depending on the degree of damage, the eye may be affected when it is damaged by a large external impact, or it may hinder the visual field depending on the size of the structure. On the other hand, in the case of the second conventional example, there are few similar problems, but it is desired that the resilience of the curved surface of the lens can be more effectively transmitted to the rear half of the temple.

[0006]

In order to solve the above-mentioned problems, according to the present invention, in a temple whose main part is made of plastic, all of the outer surface and all or a part of the upper and lower surfaces of the part close to the lens are made of temple material. In order to cover with a metal or plastic thin plate-like groove member having high rigidity, a part of the upper and lower surfaces of the temple body is formed as an inclined surface, and fitting holes are provided in the upper and lower surfaces, while the thin plate-like groove member is formed. Is provided with a projecting portion, and the projecting portion is fitted into the fitting hole so that the thin plate-shaped groove-shaped member is fitted to the temple body. In addition, the present invention is also applied to a case where this is connected to a frame that exists only at both ends of the upper edge of the lens.

[0007]

When the temple of the present invention is used, the elasticity of the lens or the frame mainly when wearing the glasses causes the rebound resilience of the temple to be closer to the lens even if the temple is expanded. Since the temple portion is reinforced by the high thin plate-like groove member, the rigidity of the temple portion is increased, and the repulsive elastic force of the lens portion can be transmitted to the rear portion of the temple as it is.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to sunglasses will be described below. In FIG. 1, a lens 1 is a single-lens lens having an appropriate curved surface, for example, a six-curved spherical surface and having flexibility and elasticity, and is preferably made of polycarbonate. On the upper edge of both ends of the lens 1,
A pair of left and right frames 2, 2 are fixed with screws.

The temple (vine) 3 has a thin plate-like groove member 5 fitted in a lens-side portion 9 of a temple body 4 made of an elastic hard plastic such as polyamide, while a temple-side rear portion of the temple 3 is provided. As shown in FIG. 3, a long hole 6 parallel to the temple length direction is formed, and a rubber anti-slip device is fitted into the long hole 6. The connection of the temple 3 to the frame 2 can be made by screwing or other hinge structure, but the projection 7 provided at the front end of the temple 3 so as to be opposed is pressed into a recess (not shown) on the frame side. A known hinge structure is suitable.

As shown in FIGS. 7 to 11, the thin groove-shaped member 5 has a substantially U-shaped cross section, a total length of about 35 mm, a vertical width of about 8 mm, and a 0.5 mm thick titanium thin plate. The temple body 4
There are provided four protruding portions 8 that fit into the. On the other hand, as shown in FIGS. 4 to 6, the shape and thickness of the thin plate-shaped groove member 5 correspond to a part of the upper surface / lower surface and the side surface of the lens-side portion 9 of the temple body 4 and the adjacent portion. A step is provided so that when the thin plate-shaped groove-shaped member 5 is fitted to the temple body 4, the surfaces of both are flush with each other. As the thin plate-shaped groove member 5, in addition to titanium, stainless steel,
Aluminum, other high-rigidity plastics, and rust-proof metal can also be used.

As shown in the end views of FIGS. 6 (a) and 6 (b), the upper surfaces 10, 1
0 ′ and the lower surfaces 11 and 11 ′ are gently inclined as a whole, and the width of the side surface 12 in the vertical direction is
It is narrower than the width of the U-shaped opening. Furthermore,
In correspondence with the four projecting portions 8 provided on the thin plate-shaped groove member 5, the inclined surface of the temple body 4
The groove 13 corresponding to the protrusion length and the protrusion width of the protrusion 8
Are formed. At both ends of the groove 13, four fitting holes 14 into which the protruding portions 8 are fitted are provided. As can be seen from FIGS. 4 to 6, the rear part of the temple main body 4 has a smaller cross-sectional area than the lens-side part of the temple main body 4 because the thin part which is curved in advance is worn. This is because the head is closely held by sometimes deforming appropriately along the shape of the head.

When the thin plate-shaped groove member 5 is pressed against the temple body 4, the interval between the projecting portions 8, 8 of the thin plate-shaped groove member 5 expands while the inclined surface of the groove 13 is expanded. , And the projections 8, 8 correspond to the corresponding insertion holes 1, respectively.
4, the thin plate-shaped groove member 5 is fixed to the temple body 4. In this embodiment, the cross-sectional area of the lens-side portion 9 of the temple 3 is made larger than the cross-sectional area of the rear portion thereof so that the resilience of the lens itself is easily transmitted to the rear portion of the temple.

Although the above embodiment is directed to a frame having a frame only at both ends of the upper edge of the lens, even if the glasses have a frame over the entire length of the upper edge of the lens, the frame itself is rich in elasticity. Then, the present invention can be applied according to the above-described embodiment. In addition, several types of thin-plate groove members 5 having different rigidities are prepared in advance,
By exchanging this, it is also possible to adjust the resilience of the temple 3.

[0014]

According to the present invention, even when the temple expands mainly due to the elasticity of the lens when wearing spectacles, the repulsive elastic force is such that the portion of the temple near the lens is reinforced by the thin groove member. The rigidity of that part is high, the repulsive elastic force of the lens part can be transmitted to the temple rear part as it is, the gripping force on the wearer's head at the temple rear part is improved, and even when used in intense sports, the head It does not slip or fall off.

In addition, the temple can be easily manufactured because it is sufficient to simply press the groove member made of a thin plate against the temple body. Moreover, there is no extra adjustment mechanism on the side of the wearer's eye and there is no obstacle to the visual field. Further, by replacing the thin groove-shaped member, the repulsive elastic force of the temple can be adjusted.

[Brief description of the drawings]

FIG. 1 is a perspective view of sunglasses showing an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment of the present invention.

FIG. 3 is a side view of the embodiment of the present invention.

FIG. 4 is a plan view of the temple body according to the embodiment of the present invention.

FIG. 5 is a side view of the temple body according to the embodiment of the present invention.

6A is an end view taken along line AA in FIG. 4, and FIG.
-B line end view, (c) is the same CC line end view.

FIG. 7 is a plan view of a thin plate-shaped groove member.

FIG. 8 is a side view of a thin groove member.

FIG. 9 is a rear view of the thin groove member.

FIG. 10 is a sectional view taken along line CC of FIG. 8;

11A is an end view taken along line DD in FIG. 8, FIG. 11B is an end view taken along line BB in FIG. 7, and FIG. 11C is an end view taken along line AA in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens 2 Frame 3 Temple 4 Temple main body 5 Thin-plate-shaped grooved member 8 Projection part 9 Lens side part 10 Upper surface 11 Lower surface 14 Fitting hole

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshinori Sukuya 3-25-8 Chodo, Higashiosaka-shi, Osaka Yamamoto Optical Co., Ltd. Examiner Yuji Mine (56) B1) Jiko 44-9987 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) G02C 5/18 G02C 7/10

Claims (2)

(57) [Claims] The temple expands with elastic deformation of the lens.
In a temple whose main part to be opened is made of plastic, all of the outer surface and all or part of the upper and lower surfaces of the part close to the lens are covered with a thin metal or plastic sheet-like groove member having higher rigidity than the temple material. To this end, the upper and lower surfaces of the temple body are partly inclined, and fitting holes are provided on the upper and lower surfaces. On the other hand, a protrusion is provided on the thin groove-shaped member, and the protrusion is fitted into the fitting hole. The temple for eyeglasses, wherein the groove member made of a thin plate is fitted to the temple main body. 2. The temple for eyeglasses according to claim 1, wherein the temple is connected to frames existing only at both ends of the upper edge of the lens.