JPS6016895Y2 - metal eyeglass frames - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved invention for metal eyeglass frames, and in particular, the eyeglass frame is provided with bent pieces at the front and rear of the frame body, and each bent piece is bent inward of the frame body. The eyeglass frame is made up of a frame body that forms a space with a cross section of approximately ■ shape, which facilitates the lens insertion process and prevents the lens from cracking. The objective is to obtain an eyeglass frame that is free from distortion and whose lenses are extremely unlikely to be damaged by external impacts.

Conventionally, frames used for eyeglass frames made of this kind of metal wire tend to simply have V-shaped grooves that match the outer periphery of the lens, making it difficult to accurately connect the lens and eyeglass frame during the lens insertion process. It has been difficult to match.

If the lens was too large for the eyeglass frame, the lens would break when the screw was tightened, and if the lens was too small, the lens would wobble even after the screw was tightened.

In addition, making the crown-shaped shape of the eyeglass frame exactly the same as the lens makes it almost possible to manufacture it up and down, and there will inevitably be a gap between the eyeglass frame and the lens, even if it is only partially. Even in eyeglass frames that have lenses inserted into them, the external pressure applied to the lenses is not uniform and causes distortion of the lenses.In this respect, the distortion is particularly severe with plastic lenses, and the distortion of these lenses is often used in medicine. Needless to say, it is not good for the eyes.

Furthermore, in order to prevent distortion of the lens, there are some that pour plastic into the grooves of the frame and harden it as a cushioning material.
Even this was not sufficient, and there were drawbacks such as damage caused by lens replacement work or external pressure, and distortion of the lens.

The present invention was devised to solve these drawbacks, and next, a drawing showing an embodiment thereof will be described.

Reference numeral 1 denotes a frame made of metal filaments, and bent pieces 2 and 3 are integrally provided at the front and back over the entire length of the frame 1, and each of the bent pieces 2 and 3 is placed inward of the frame 1. The frame body 1 is bent and tilted toward the camera body, and a hollow space 4 having a cross section of a square shape is formed in the frame body 1. A locking piece 5, 6 is provided on each of the separated ends, and a screw 7 is screwed into both the locking pieces 5, 6 from below to fix it.

Note that 9 is a bridge that connects the left and right frames 1, 1.

When fitting the lens 8 into the frame 1, as shown in FIG. It is supported and mounted within the frame 1 with the screws 7 loosened.

Front and rear inclined surfaces 8a of the lens 8. 8b and the front and rear bent pieces 2 and 3 of the frame 1 are held in the frame 1 while being in partial contact with each other.

Next, as shown in FIG. 3, when the screw 7 on the outside of the frame 1 is tightened, the frame 1 comes into contact with the lens 8 along the outer periphery, and the frame 1 contacts the inclined surface 8a in front of the lens 8. The front bent piece 2 and the rear bent piece 3 are bonded to the rear inclined surface 8b while bending inwardly, respectively, and the double bent piece 2 is attached to the outer peripheral edge of the lens 8. , 3 match, and even if the shaping inclination angle A of the inclined surface 8a of the lens 8 and the shaping inclination angle B of the inclined surface 8b are the same or different, the front and rear bent pieces 2, 3 are bent and inclined along the respective inclined surfaces of the opposing lenses 8, and can sufficiently match the outer peripheral edge of the lenses 8.

As described above, the present invention consists of a linear frame body in which the front and rear bent pieces are bent inward and inclined to form a space with a roughly V-shaped cross section, so that it is easy to insert lenses. It can be done easily and safely.

In addition, the front and rear bent pieces of the frame can be bent and tilted separately relative to the outer periphery of the lens to fit the lens, and the metal double bent pieces act as cushioning material with elasticity. , absorbs external shocks and prevents damage to the lens.
No distortion occurs in the lens.

Furthermore, even if the shaping angles of the front and rear sloped surfaces of the lens are different, each bent piece of the frame can match the sloped surface of the opposing lens, and in addition, it is possible to fit a lens that is slightly larger than the lens shape of the eyeglass frame Even if a lens is slightly smaller than the lens shape of the eyeglass frame, the lens will not be damaged through the bending pieces that are bent and tilted slightly. It has various features such as no rattling due to interference.

[Brief explanation of the drawing]

Figure 1 is a front view of the eyeglass frame, and Figures 2 and 3 are partially enlarged cross-sectional views of the main parts of the frame. In the drawings, 1 is the frame, 2 and 3 are bent pieces, and 4 is a blank space. , 8 indicates a lens.

Claims (1)

[Scope of utility model registration request] A metal eyeglass frame consisting of a striated frame body in which the front and rear bent pieces are bent inward and inclined to form a space approximately square in cross section.