JPH032891Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) This invention provides a bending part on the bridge of the glasses, and when the glasses are folded, the bending part is bent toward the temple side in a "H" shape. The aim is to reduce the thickness of the

In recent years, eyeglass frames with large lenses and a greatly curved front have become popular, but due to the structure of this type of eyeglass frame, when folded, the center part of the eyeglass frame in particular protrudes significantly upwards, making it bulky. Forcibly storing them in a regular-sized eyeglass case may cause the frames to deform, and even if they are stored in a special large case, the thickness will increase, resulting in an unsightly appearance when placed in a pocket, etc. It was hot.

This design was devised with the aim of reducing the space required when folded by providing a specific bend on the bridge in the middle of the front, while also automatically restoring it to its normal shape when worn.

(Structure of the invention) Fig. 1 is a cross-sectional view of the main part of a spectacle bridge in which the invention is implemented, and Fig. 2 is a view showing the state of use.

In the drawing, 1 is the bridge of the glasses, 2 and 2 are the dividing parts provided near the middle part of the bridge, and the left and right dividing parts are aligned with the vertical axis 3.
A leaf spring 4 is stretched and fixed on the outer surface of both divided parts 2, 2, and the end face of the divided part on one side is a straight plane A perpendicular to the vertical axis 3, and the end face of the divided part on the other side is A linear surface a that is in contact with the linear surface A, a circular arc surface b that is centered on the vertical axis 3, and a linear surface c that extends in a tangential direction from the circular arc surface are formed adjacent to each other in this order. Note that 1 = length between the axis center and the circular arc surface b,
1' = indicates the length between the axis and the straight line c outside the circular arc surface.

(Function, effect) When wearing glasses, the bridge of this invention is
The bridge is held in a straight line by the elasticity of the leaf spring 4 while Aa is in contact with each other, but when the glasses are removed and stored in the glasses case, the split part is bent.
Since it is bent in the shape of a letter, it can be accommodated in an eyeglass case 11 of normal thickness as shown in FIG.

If there is no split part, a specially made thick case 12 is required, and if it is forced into an ordinary case, the front of the eyeglass frame may be deformed or damaged.

In addition, since the end faces of the bridge divided portions are formed as shown in Fig. 1, when the divided portions are bent, the circular arc surface b rotates without loosening along the straight line plane A, and the straight line c
When it comes into contact with the straight plane A, the bending is stopped because 1'>1. (Acts as a stopper.) As mentioned above, glasses with the bridge of the present invention are flexible and have a low bulk when folded, so the case may be thin and the case will not be unsightly even when stored in a pocket. It has the effect of not inviting people.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a main part of a glasses bridge according to the present invention, and FIG. 2 is an explanatory diagram of glasses having the glasses bridge according to the invention housed in a glasses case. 1: Bridge, 2, 2: Divided part, 3: Vertical axis,
4: Leaf spring.

Claims (1)

[Scope of utility model registration request] The middle part of the bridge 1 is divided into front and rear parts, the divided part is fixed by a vertical shaft 3, and a leaf spring 4 is attached between the front and rear bridge parts on the outside of the shaft part. In the opposing surfaces, one opposing surface is a straight surface A, the other opposing surface is a linear surface a perpendicular to the perpendicular l from the shaft attachment part, a circular arc surface b centered on the shaft attachment part, and a tangential direction from the surface. A bridge with a bending part in which extending linear surfaces c are sequentially formed.