JP3526842B2 - Eyeglass coupling mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of rim-lock type spectacles, and more specifically, to a spectacles coupling mechanism capable of reliably coupling spectacles members to each other without using a fastening screw with a simple structure. It is about.

[0002]

2. Description of the Related Art As is well known, eyeglasses worn on a person's face are often used mainly for the purpose of correcting visual acuity, but recently, they have been positioned as fashionable items, and their decorativeness Is more important than functionality.

By the way, spectacles are assembled by using very precise parts, and in particular, at a connecting portion between members, they are often screwed by a fine fastening screw as a fastening member. Therefore, the assembly work required skill and skill.

Also, as the temples are opened and closed repeatedly during use, the hinge pivot portion of the end piece loosens and tends to rattling. Therefore, it is necessary to impart appropriate temple opening / closing operability (so-called akigaki).

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional eyeglasses, and its object is to provide a fastening screw with a simple structure. An object of the present invention is to provide a spectacles coupling mechanism that can reliably couple spectacles members to each other without using them.

[0006]

Means adopted by the present inventor for solving the above problems will be described below with reference to the accompanying drawings.

That is, according to the present invention, in the rim-lock type spectacles in which the end piece side of the rim 1 for holding the lens L is connected so as to be able to be joined / separated, the lock end 11 to which the rim 1 is to be joined. A pair of upper and lower end piece split members 2 and 2 are fixed to 11 respectively, and an insertion board 21 having a convex head 21a is formed on one of the overlapping surfaces of the end piece split members. And a sink hole 22 into which the insertion board 21 is fitted is formed on the other overlapping surface, and
An insertion hole 22a is formed in the bottom of the sunk hole 21 at a position corresponding to the convex head 21a. The insertion board 21 is fitted into the sunk hole 22 and at the same time the convex head 21a is inserted into the insertion hole 22a. While the lens cap L is rim-locked by fitting the resin cap 3 on the convex head 21 to fix both end piece split members, the lens L is rim-locked, while the end portions of the end piece split members 2, 2 are pivotally supported holes respectively. 23.23 is opened, and the technical means of fitting the pivot 41 formed at the base end of the temple 4 into the pivot support hole 23.23 and hinge-connecting the temple 4 in a foldable manner is adopted. ..

Further, in order to solve the above-mentioned problems, according to the present invention, in addition to the above-mentioned means, a resin ring 5 is provided around the pivotal support hole 23 of the end piece splitting member 2, and a temple 4 is provided. A technical means of fitting a pivot 51 formed at the base end portion of the above into the resin ring 5 and the pivot support hole, and sliding the sliding surface with the resin ring 5 with desired resistance when the temple 4 opens and closes. It was adopted.

Further, according to the present invention, in order to solve the above-mentioned problems, in addition to the above-mentioned means, a resin ring 5 is interposed around the pivot hole 23 of the upper end-piece split member 2. I adopted the technical means.

Furthermore, in order to solve the above-mentioned problems, the present invention provides the convex head of the insertion board 21 in addition to the above-mentioned means as necessary.
A stopper protrusion 21b is formed on the periphery of 21a, and the resin cap 3
We adopted the technical means to make it hard to get out of the car.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in more detail with reference to the drawings specifically showing the following.

[First Embodiment] A first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In the figure, what is indicated by reference numeral 1 is a rim formed by bending a metal wire to fit the lens shape of the spectacles in order to hold the lens L of the spectacles. Department
It is 11/11.

Reference numeral 2 indicates the lock end portion.
A pair of upper and lower metal end piece split members, which are joined to the outside of 11/11, respectively, and these end piece split members 2.2 form a rim lock.

What is indicated by reference numeral 3 is a resin cap, and this resin cap 3 is formed in a bag-like cylinder shape. Also, what is indicated by reference numeral 4 is a temple, and a pivot 41 is integrally formed at the base end portion of the temple 4.

One of the end piece split members 2, 2 has a convex head 21 on the overlapping surface of one end piece split member 2.
An insertion board 21 on which a is formed is formed.

Further, a sunk hole 22 into which the insertion board 21 is fitted is formed in the overlapping surface of the other end piece split member 2, and the convex head 21a is formed at the bottom of the sunk hole 21.
An insertion hole 22a is provided at the corresponding position.

In configuring the eyeglasses of this embodiment,
First, the insertion board 21 is fitted into the sink hole 22. At this time, the convex head 21a projecting on the insertion board 21 is simultaneously inserted into the insertion hole 22a.

In the end piece split member 2 having the insertion hole 22a, the resin cap 3 is projected from the outside.
By fitting into 21 the end piece split members can be securely fixed and the lens L can be rim-locked.

On the other hand, on the other hand, the end piece splitting member 2
The pivoting holes 23, 23 are opened at the tip of the carry-out portion of 2, respectively, and the pivot 41 formed at the base end of the temple 4 is fitted into the pivoting holes 23, 23 to attach the temple 4. It is hinged so that it can be folded. In this way, the spectacles are manufactured by stacking the end piece split members 2.2.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the resin ring 5 is inserted around the pivot hole 23 of the end piece split member 2, and the pivot 41 formed at the base end of the temple 4 is attached to the hole of the resin ring 5 and the pivot hole. When the temple 4 is opened and closed, the sliding surface of the resin ring 5 can be slid with a desired resistance by being fitted in 23. At this time, the inner diameter of the hole portion of the resin ring 5 is formed to be slightly smaller than that of the pivot shaft 41, so that the pivot shaft 41 bites into the hole at the time of fitting to generate sliding resistance.

Further, in this embodiment, the resin ring 5
Is inserted in the peripheral edge of the pivotally supporting hole 23 of the upper end piece splitting member 2, so that the pivot 41 of the temple 4 is a hole of the resin ring 5 when the end piece splitting members 2 and 2 are separated. This makes it difficult for the temples to get caught inside and become difficult to come off, and it is possible to prevent the temples from being accidentally dropped and damaged during work.

Further, in this embodiment, the retaining projection 21b is formed on the peripheral edge of the convex head 21a of the insertion board 21, so that the resin cap 3 can be prevented from coming off easily. The retaining protrusion 21b may be formed over the entire outer circumference of the convex head 21a as shown in the figure, or may be formed in a protrusion shape. Furthermore, as shown in the drawing, the convex head 21a can be lengthened and the bag cylinder depth of the resin cap 3 can be increased so that the resin cap 3 can be fitted onto the convex head 21a to increase the engaging force of both members.

Although the present invention is constructed as described above,
The present invention is by no means limited to the illustrated embodiment, and various modifications can be made within the description of “Claims”, for example, the insertion board of the end piece split member 2
The shape of the recess 21 and the sink hole 22 may be any shape as long as they can be fitted. Further, in order to increase the sliding resistance of the resin ring 5, unevenness is provided on the sliding surface,
Knurling may be applied, and any of them is within the technical scope of the present invention.

[0024]

As described above with reference to the embodiments, according to the present invention, the upper and lower end piece splitting members are fitted into the insertion board and the sink hole, and between the convex head and the resin cap. The combined double fastening structure allows firm and reliable fastening. Also, since the pivot of the temple is pivotally supported by the upper and lower pivot holes, it is not necessary to use a fastening screw. Further, if necessary, by interposing a resin ring on the pivot of the temple, it is possible to easily add the akigaki of the temple and the usability is improved, so that the practical value of eyeglasses is extremely high.

[Brief description of drawings]

FIG. 1 is an overall perspective view of eyeglasses according to a first embodiment of the present invention.

FIG. 2 is a partially exploded perspective view showing a connecting mechanism according to the first embodiment of the present invention.

FIG. 3 is an explanatory side view showing the connecting mechanism according to the first embodiment of the present invention.

FIG. 4 is a partially exploded perspective view showing a connecting mechanism according to a second embodiment of the present invention.

FIG. 5 is an explanatory side view showing a connecting mechanism according to a second embodiment of the present invention.

[Explanation of symbols]

1 rim 11 Lock end 2 End piece split member 21 insertion board 21a convex head 21b retaining protrusion 22 sinkhole 22a insertion hole 23 pivot hole 3 resin cap 4 temples 41 Axis 5 resin ring L lens

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G02C 1/08 G02C 5/22

Claims (4)

(57) [Claims] 1. A rim-lock type spectacle in which the end piece side of a rim holding a lens L is connected so as to be able to be joined and separated, and a lock end portion to which the rim 1 is to be joined.
A pair of upper and lower end piece split members 2 and 2 are fixed to 11 and 11, respectively, and an insertion board 21 having a convex head 21a is formed on one of the overlapping surfaces of the end piece split members. And the insertion board 21 on the other overlapping surface.
A sunk hole 22 into which is inserted is formed, and an insertion hole 22a is formed in the bottom of the sunk hole 21 at a position corresponding to the convex head 21a, and the insertion board 21 is fitted into the sunk hole 22. At the same time, the convex head 21a is inserted into the insertion hole 22a, and the convex cap 21 is covered with the resin cap 3 to fix both end piece split members and the lens L is rim-locked. Pivot holes 23, 23 are opened at the tips of the carry-out portions of 2, respectively, and the pivot shaft 41 formed at the base end of the temple 4 is fitted into the pivot holes 23, 23 to fold the temple 4. A coupling mechanism for eyeglasses, which is hinged freely. 2. A resin ring (5) is inserted around the pivotal support hole (23) of the end piece split member (2), and a pivot shaft (51) formed at the base end of the temple (4) is fitted into the resin ring (5) and the pivot support hole. The eyeglasses connecting mechanism according to claim 1, wherein when the temple 4 is opened and closed, the sliding surface with the resin ring 5 is slid with a desired resistance. 3. The eyeglasses coupling mechanism according to claim 1, wherein the resin ring 5 is provided on the peripheral edge of the pivot hole 23 of the upper end split member 2. 4. A retaining projection on the periphery of the convex head 21a of the insertion board 21.
21. The eyeglasses connecting mechanism according to claim 1, wherein the resin cap 3 is hard to be removed by forming 21b.