JPH07318871A - Spectacle frame - Google Patents

Abstract

PURPOSE:To provide a spectacle frame which does not require labor for folding temples and keeps opening and closing of the temples tight in spite of repetition of opening and closing of the temples. CONSTITUTION:The ends of connecting pieces 3 consisting of a shape memory alloy are fixed to mitres 2 disposed in the upper parts on the outer side of lenses 1 and the front ends of the temples 4. These connecting pieces 3 are made to memorize the shape of the folded temples 3. The temples 4 are opened by applying the force to overcome the elasticity of the connecting pieces 3 on the temples 4 at the time of wearing the spectacles. The temples 4 are automatically folded as the connecting pieces 3 restore the memorized shape when the spectacles are removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle frame.

[0002]

2. Description of the Related Art Generally, a temple in an eyeglass frame is foldably connected to a pawl provided on an outer upper portion of a lens via a hinge.

This hinge is composed of a pair of hinge pieces, one of which is attached to the temple and the other of which is attached to the pawl. It is movably connected.

[0004]

However, in the eyeglass frame using the hinge as described above, the temple must be folded by hand when it is stored in the case or the like.

Further, when the temples are repeatedly opened and closed, there is a problem that the screws are gradually loosened and the temples are loosened.

SUMMARY OF THE INVENTION An object of the present invention is to provide an eyeglass frame that does not require the labor of folding the temple and does not loosen the temple even if the temple is repeatedly opened and closed.

[0007]

In order to solve the above-mentioned problems, the present invention secures the end of a shape-memory alloy connecting piece to the tip of a temple provided on the upper outer side of the lens. , The connecting piece was made to remember the shape when the temple was folded.

[0008]

The connecting piece for connecting the pawl and the temple is made of a shape memory alloy, and the connecting piece remembers the shape at the time of folding the temple. Therefore, when wearing glasses using the eyeglass frame according to the present invention. Applies a force against the elasticity (restoring force) of the connecting piece to the temple to open the temple.

When the spectacles are removed, the temple is automatically folded as the connecting piece is restored to the memorized shape.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 to 3, one end of a connecting piece 3 made of a shape memory alloy is fixed to a pawl 2 which is attached to the upper outer side of the lens 1 via a means such as a screw. The other end of 3 is fixed to the temple 4.

The connecting piece 3 is bent into an L-shape so that the temple 4 is folded in the memory state.

When wearing spectacles using the spectacle frame as described above, a force against the elasticity of the connecting piece 3 is applied to the temple 4 to open the temple 4. When the temple 4 is completely opened, the connecting piece 3 is in a straight extended state.

When the glasses are removed, the temple 4 is automatically folded as the connecting piece 3 is restored to the memorized shape.

If the connecting piece 3 is made of a shape memory alloy having a high fatigue strength, the connecting piece 3 can be opened and closed even if the temple 4 is repeatedly opened and closed.
Can't be destroyed.

Although the rimless spectacles are shown in the drawing, a lens frame for holding the lens 1 is provided, and the pawl 2 is attached to the lens frame.
May be attached.

[0016]

According to the present invention, as described above, the end of the connecting piece made of the shape memory alloy is fixed to the pawl provided on the outer upper side of the lens and the tip of the temple, and the connecting piece is
Since the shape when the temple is folded is memorized, when wearing glasses, a force that resists the elasticity of the connecting piece is applied to the temple to open the temple.

When the spectacles are removed, the temple is automatically folded as the connecting piece is restored to the memorized shape, so that it is not necessary to fold the temple.

Further, since the hinge in which the pair of hinge pieces are connected by the screw is not used, even if the temple is repeatedly opened and closed, the opening and closing of the temple will not be loosened.

In addition, since the connection structure between the pawl and the temple is extremely simple, it can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment.

FIG. 2 is a perspective view showing a state in which the above temple is opened.

FIG. 3 is a perspective view showing a state in which the temple is closed.

[Explanation of symbols]

 1 lens 2nd 3 connecting piece 4 temple

Claims (1)

[Claims] 1. A pawl provided on an upper outer side of the lens,
An eyeglass frame in which the end of a connecting piece made of a shape memory alloy is fixed to the tip of the temple, and the connecting piece remembers the shape when the temple is folded.