Elastic temple of eyeglass frame

Abstract

[Problem] To provide an elastic eyeglass-frame temple that is capable of obtaining an exceptional fit while suppressing the protrusion of a leaf spring, is structurally robust and capable of enduring loads in bending and twisting directions, and is not difficult to produce. [Solution] An elastic eyeglass-frame temple (1) having an ear hook part (M) on a movable end side and a proximal end side that is coupled to a front frame (F), wherein at least the portion from the proximal end side to the center is configured from a band-like metal frame (11) having a plurality of window parts (11b, 11b) aligned on the side of the frame in the longitudinal direction and is configured by the fixing of both ends of a leaf spring material (12) having a plurality of bend parts (12a, 12a) capable of being inserted into the window parts (11b, 11b) to the metal frame in a state in which a depressed part (B) between the bend parts (12a, 12a) is disposed inside the metal frame (11) and the top parts (T) of the bend parts (12a, 12a) are disposed outside the metal frame (11).

Description

technical field [0001] The present invention relates to an improvement of a mirror leg of a spectacle frame. Specifically, it relates to an elastic temple leg of a spectacle frame that can further improve the fit to the head when wearing the spectacle while suppressing the protruding of the plate spring. In addition, it is also relatively strong in structure and is not prone to bending deformation and torsional deformation. Moreover, it does not require difficult processing during manufacture. Background technique [0002] As everyone knows, as a spectacle frame with excellent fitting feeling, there is known a spring hinge type spectacle frame in which the force acts inward when the left and right temples are opened, but in general, a small coil spring, leaf spring Therefore, the force on the side of the ear hook part farther from the spring hinge is small, and it is difficult to obtain a good fit feeling. [0003] Therefore, the following spectacle frames are also known in...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned conventional spectacle frame is a structure in which only the two ends of the curved leaf spring are simply fixed to the side of the temple, so it is easy to cause the following problem: when something hits the face, it protrudes greatly to the inside of the temple. The leaf spring hits the temple and hurts, or something touches the leaf spring protruding to the outside of the temple and the glasses fall off

[0005] On the other hand, in the past, there is also known a spectacle frame in which the base ends of the temples are made of elastic wires arranged in the longitudinal direction and the longitudinal direction (refer to Patent Document 4). It is made of elastic wire, so there are disadvantages in terms of strength such as the temples are easily deformed due to the load in the bending direction and torsion direction.

[0006] In addition, regarding the spectacle frame of the above-mentioned document 4, it is necessary to weld the end of the elastic wire (β-titanium wire) to the spherical connecting member during manufacture, but the two are welded in a state of point contact with a very small contact area. Some jobs require difficult laser processing, so it is necessary to ensure investment in new equipment and professional technicians

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