JPS593415A - Spectacle frame for exchanging lens - Google Patents

Abstract

PURPOSE:To obtain the lens fixing or holding force equivalent to the force of an ordinary frame without spoiling the appearance of the frame by forming the frame into the mechanism wherein the bridge member itself can be extended or contracted by forward and backward screwing motions. CONSTITUTION:An extensible and contractable bridge member 4 is mounted on the outer side 1b of a pair of right and left rims. The member 4 consists of a pair of an internal screw cylinder 5 and a bolt cylinder 6, and is stuck by brazing to the top side of each rim 1 with the internal screw cylinder faced to the inside. The member including the rim part is divided longitudinally to form parting parts 7. On the other hand, the rear end 6b of each cylinder 6 is fitted pivotally to a pair of projecting pins 8a of a bearing 8 extending upward from a stationary bridge member 2, and the bolts 6a at the other end are screwed into the respectively corresponding cylinders 5, whereby a frame is formed. The space between the parting parts 7 of the rim 1 is independently attached or detached by rotating the bolt 6 forward or backward around the axis. The frames are supported securely by effect of threaded engagement between the cylinder 5 with the bolts 6a of the cylinder 6 by connecting the parts 7 to each other.

Description

[Detailed description of the invention] TECHNICAL FIELD The present invention relates to eyeglasses for replacing lenses.

Traditionally, glasses with interchangeable lenses have been used, but they are inferior in fixing or holding power to the lenses compared to regular frames, and the lenses tend to fall off unexpectedly. The replacement mechanism spoiled the appearance of the frame and many of them were unsightly.

Therefore, the present invention employs a mechanism that allows the bridge member itself, which is an essential component of glasses, to expand and contract by advancing and retracting motion, thereby achieving a lens fixing or holding force comparable to that of a regular frame without damaging the appearance of the frame. It is an object of the present invention to provide a spectacle frame for replacing lenses.

The present invention will be described below with reference to the accompanying drawings showing preferred embodiments thereof.

In the drawing, (1) is a lens holding rim, and a fixed bridge member (2) is attached to the inside of the pair of left and right rims (/a) (/a
) are connected. (3) is a temple, which is attached to each rim (1) via a temple joiner (4).

In the present invention, the outside (lb) (l
b) a telescopic bridge member (4) extending along its upper side;
) is installed.

That is, the telescopic bridge member (4) has a pair of internally threaded cylinders (5).
), (5) and a pair of bolt tubes (6
), (5) are fixed to the upper side of each rim (1) by brazing inward, and divided vertically including the rim part to form divided parts (7) (7), while fixing. Bridge member (
A pair of protruding pins (J
'a), (J'a) at the rear end (6b) of each bolt cylinder (6)
By pivoting the tip pole) (&&) at the other end and rotating the corresponding inner threaded cylinder (5) in the forward or reverse direction around its axis, They can be joined or separated independently of each other.

Therefore, if each divided part (7) is joined, the state is that the inner thread M of the tip bolt (6a) of bolt tt9J (6)
Mi7 is retained by screwing with i(5). How to scold.

As the bolt cylinder (6 to 6) is rotated, the distance between the two divided portions (7) is gradually increased, so the rim does not break.

The lens is now ready for IIQ wear. Therefore, 9 It has the same lens fixing or holding function as a normal frame, while the lens can be easily replaced. .

It is capable of various transformations. For example, in the specific example, each end of the telescoping bridge member (4) is independently telescoping, but both ends may be telescoping at the same time. Furthermore, in the specific example, the bridge part (2) is fixed.

Even if the bridge member (4) is extendable together with or in place of it, the separation interval can be adjusted in the same way.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a specific example of a lens exchangeable eyeglass frame according to the present invention, and FIGS. 2 to 2 are enlarged views of each member. (1)...Lens holding rim, (2)...First bridge member (4)...Second bridge member, (7)...
・Divided part. Utility model registration applicant: Sealex Sunglasses agent: Patent attorney: Koji Togawa Figure 2
Figure 3 Figure 4 bD 5 51

Claims (1)

[Claims] ■ A pair of lens holding rims (1) formed by vertically dividing the upper side, the divided portion (7) of (1), and a pair of rim portions (/a) on the inner side of (7); ), (/a) are connected by the first bridge member (2), while the dividing part (7). (7) A pair of outer rim parts (/b), (/b) are connected by a second bridge member (4) extending along the upper side of the rim, and either the first or second bridge member A spectacle frame for lens replacement O which is constructed in such a way that the interval between the divided portions (7) can be joined or separated by expanding and contracting the first bridge member (2) by screwing it forward and backward. The eyeglass frame according to item 0, wherein the second co-bridge member (4) is configured to be expandable and retractable while being fixed. (2) The eyeglass frame according to item 0, wherein each end of the phase a bridge member (4) expands and contracts independently of each other, and the 1i41 interval of the dividing portion (7) of each rim (1) is adjustable.