High-tension thread fastening structure for eyeglasses frame

US20010017686A1Inactive Publication Date: 2001-08-30HYOI ISAO

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[0033] Referring to FIG. 1, a length of thin metal in the form of thread is formed into the front of the eyeglasses frame, which front is composed of a pair of half-rims 1 and 1 integrally connected via an intervening bridge 2. A length of high-tension thread 4 such as nylon thread is stretched around the lens 3 to push it against the half-rim 1. An auxiliary arch-like bridge piece 5 is caught by the opposite bridge-to-rim transient recesses, each being formed between the bridge 2 and the adjoining half-rim 1. Each temple 6 has a coiled spring 7 formed at its end. The length of thread 4 is bound and fastened by its opposite ends both to a selected leg 8 of the auxiliary bridge 5 and to the coiled spring 7 of the temple 6, thereby holding the lens 3 along with the half-rim 1.

[0034] The auxiliary bridge 5 has the effect of increasing the strength of the bridge 2, which is a part of a single thread-like metal formed into the front of the frame. The temple 6 is foldably connected to the...

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Abstract

Disclosed is a high-tension thread fastening structure for an eyeglasses frame having a lens held by stretching a length of high-tension thread around the lower sector of the lens to push the lens against the upper sector of rim. The length of high-tension thread has a single knot formed at each end, each knot being caught by each end of the upper sector of rim, and being terminated with a spherical end, thereby preventing the loosening or unbinding of the fastening. Alternatively the length of high-tension thread has first and second knots formed at each end, the first knot being caught by each end of the upper sector of rim, thereby preventing the loosening or unbinding of the fastening by using the second knot as a backup for the first knot.

Description

[0001] 1. Field of the Invention[0002] The present invention relates to a frame using a length of high-tension thread for fastening a lens in each half-rim, and more particularly to the fastening structure of the high-tension thread to each end of the half-rim.[0003] 2. Related Arts[0004] An eyeglasses frame of the type to which the present invention can be applied has a pair of parts each comprising a half-rim and a length of thread stretched between the opposite ends of the half-rim, holding a lens between the stretched thread and the half-rim. Such half-rimmed glasses are light, significantly widening the field of sight. As seen from FIG. 9, a most popular frame of such type comprises two circular-arc rims "a" connected by an intervening bridge "d", a length of thread "b" stretched between the opposite ends of each circular-arc "a" to hold the lens "c" between the circular-arc rim "a" and the stretched thread "b". Each circular-arc rim "a" has a rectangular shape in cross-section...

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Application Information

Patent Timeline

30 Aug 2001

Publication

US20010017686A1

IPC: G02C1/04; G02C5/02

CPC: G02C1/04

Inventors: HYOI, ISAO