JP2002049010A - Spring type temple of spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide spring type temples of spectacles which are capable of realizing comfortable wearing and, if necessary, imparting ornamentality to the spectacles by imparting pliability and rigidity in combination to the temples with extremely simple constitution and simultaneously imparting the energizing force in a folding direction, thereby clamping the side head of the user with adequate pressure. SOLUTION: The technical means of connecting hook projections 32 and hook forks 42 by clearance coupling freely slidable in a longitudinal direction and allowing split members 3 to exhibit a splint function when more than specified deformation force acts on flexible parts 43 from the coupling parts to the second vane motion barrel parts 41, thereby imparting the rigidity over the entire part of the temples, is adopted for the split members 3 and the elastic temples 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in temples for spectacles, and more particularly, to a temple having a very simple structure and having both flexibility and rigidity and applying a biasing force in a folding direction. The present invention relates to a spring-type temple for spectacles that can realize comfortable wearing by holding a person's temporal region with appropriate pressure and, if necessary, can also provide decorativeness.

[0002]

2. Description of the Related Art When a user wears eyeglasses, there is a strong demand that a user wears his / her head with appropriate pressure to obtain a comfortable wearing feeling. Conventionally, to respond to such requests,
Attempts were made to solve this problem by using a highly elastic temple made of a superelastic alloy.
Although it is possible to obtain flexibility, there is a problem that rigidity is reduced, and there is a limit in solving the problem by using only the material of the eyeglass temple, which requires a reciprocal harmony between flexibility and rigidity in this pinching force. .

Also, when trying to put on and take off the glasses, the free end side of the temple tends to be inevitably expanded outward, so that a large force is applied to the base end portion of the temple. , Eyeglass frames are likely to break down or deform, and as a proposal to eliminate such adverse effects,
There is a so-called "spring hinge" in which one hinge piece of a hinge for hinge-connecting the front frame and the temple can be elastically moved forward and backward by a coil spring provided at the base end of the temple.

[0004] However, since the structure of the spring hinge is generally complicated and the components thereof are minute, the frequent temple opening / closing operation causes wear of each component, and the outside expanding operation is easily weakened. On the contrary, in many cases, sweat or sebum of the wearer penetrates into the hinge mechanism and corrodes the spring or the like, so that the temple is difficult to return to its original state while expanding outward.

When such a failure occurs, it is necessary to replace the spring hinge. However, since the conventional spring hinge has a complicated structure as described above, the replacement operation is extremely troublesome. There was a dissatisfaction that it could not be handled by an amateur and that the components were very small and the number was large, so that the cost was inevitably increased.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks.
The temple has both flexibility and rigidity with an extremely simple structure, and at the same time, applies a biasing force in the folding direction to pinch the user's temporal region with appropriate pressure to achieve comfortable wearing. An object of the present invention is to provide a spring-type temple for spectacles that can be provided with decorativeness, if necessary.

[0007]

Means adopted by the present inventor to solve the above problems will be described below with reference to the accompanying drawings.

That is, the present invention relates to a bracket 2 which is disposed on the eyepiece side on both sides of the spectacle front frame 1 and has pieces 21 at the take-out portion; A split member 3 having a projection 31 on the free end side and a second wing moving piece portion 41 on the base end side, and a portion facing the projection 32 on the free end side; An elastic temple 4 from which a stop fork 42 is formed by extrusion;
The pivot member 5 coaxially supports the first wing moving part 31 of the split member 3 and the second wing moving part 41 of the elastic temple 4, and the split member 3 and the elastic temple 4 are provided. This means that the hooking projection 32 protruding from the free end side of the split member 3 and the hooking fork 42 taken out of the elastic temple 4 are connected by a clearance connection slidable in the longitudinal direction. From the joint to the second wing moving part 41
When a predetermined or more elastic deformation force is applied to the flexible portion 43, the split member 3 exerts a splint function to impart rigidity to the entire temple.

According to the present invention, in order to solve the above problems, the first blade moving piece portion 31 of the split member 3 is formed by two blade pieces 31a, 31a in addition to the above means as necessary. With the second wing moving piece 41 of the elastic temple 4 sandwiched in the inner crotch gap 31b between the wing pieces 31a and 31a, the pivot 5 coaxially pivots with the pieces 21 and 21 of the bracket J2. The technical means of supporting was adopted.

Furthermore, in order to solve the above-mentioned problems, the present invention employs technical means for performing a decorative process such as molding or jewelry decoration on the split member 3 in addition to the above means as necessary.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in more detail with reference to the drawings.

An embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a front frame in which lenses 12 and 12 are held in parallel on a pair of left and right rims 11 and 11.

The one designated by reference numeral 2 is the front frame 1
A bracket J is formed by being taken out in the direction of the eyepieces at the right and left ends of the bracket.
Having.

A member designated by reference numeral 3 is a split member. The split member 3 has a first wing moving part 31 at its base end side.
Are hooked, and a hooking projection 32 protrudes inward from the free end. The insertion piece portion 31 in the present embodiment is formed by upper and lower two wing pieces 31a, 31a, and the both wing pieces 31a, 31a are configured to be insertable between the pieces 21 of the bracket J2. And the wing piece 31a
The gap between the inner leg 31a and the inner leg 31b is defined as an inner thigh gap 31b.

The one designated by reference numeral 4 is an elastic temple. The elastic temple 4 has a second wing moving piece 41 formed on the base end side. In this embodiment, the elastic temple is made of β-titanium, which is a superelastic alloy, and a hooking fork 42 is formed at a portion of the split member 3 facing the hooking projection 32. A free end side of the temple is covered with a synthetic resin modern M.

What is indicated by reference numeral 5 is a pivot,
The pivot 5 is attached to the bridge portion 21 of the bracket 2 by the upper and lower wing pieces 31a of the split member 3 (first wing moving piece portion 31).
This is a component that coaxially pivots with the second wing moving piece 41 of the elastic temple 4 inserted between the inserted wing pieces 31a and 31a (the inner crotch gap 31b). Then, it is configured in the form of a set screw.

In the present embodiment, the insertion piece 31 of the split member 3 is formed by upper and lower two wing pieces 31a, 31a, which are inserted between the pieces 21 of the bracket J2. The second wing moving piece 41 of the elastic temple 4 is inserted into the inner crotch gap 31b between the wing pieces 31a.

Then, as shown in FIGS. 3 and 4,
In a case where the temple is expanded elastically further outward from the normally opened state, the flexible portion 43 of the elastic temple 4 is largely bent elastically. At this time, the first wing moving part 31 of the split member 3 and the second wing moving part 41 of the elastic temple 4 are coaxially pivotally supported by the pivot 5, but must be connected by a clearance connection on the free end side. Accordingly, the displacement difference due to the difference in rigidity between these two members can be offset, and the rigid split member 3 and the flexible elastic temple 4 are simultaneously arranged in one temple to provide a temple having both properties. Is composed. Therefore, the elastic temple 4
Even if a certain or more elastic deformation force acts on the flexible portion 43, the split member 3 can exert a splint function and impart rigidity to the entire temple.

This clearance connection is defined by a locking projection of the split member 3 between the locking forks 42 formed bifurcated.
32 is configured to be slidable in the longitudinal direction, and a head 32a larger than the gap of the hooking fork 42 is formed at the tip of the hooking projection 32 into a flared shape. There is no hanging out.

Further, since the split member 3 is disposed on the outer surface of the temple, that is, a conspicuous portion, the split member 3 can be formed by designing and designing, or by plating, coloring, or jewelry. In addition, decorativeness can be imparted to the design of the entire glasses.

The present invention is generally configured as described above.
The present invention is by no means limited to the illustrated embodiment, and various modifications are possible within the scope of the claims. For example, the front frame 1 is a half-rim frame, a two-point frame, or the like. It may be. The material used for the elastic temple 4 is not limited to β-titanium, but may be a metal material having high elasticity such as nickel-titanium superelastic alloy, nickel silver, beryllium copper alloy, etc. Belongs to the technical scope of

[0022]

As described above in the embodiment, in the present invention, the flexible elastic temple coaxially pivoted and the rigid split member are connected by a clearance connection slidable in the longitudinal direction. However, since the difference in displacement due to the difference in rigidity between these two members can be canceled out and the characteristics of both members can be skillfully harmonized, a certain amount of elastic deformation force acts on the flexible portion of the elastic temple. Even so, the split member exerts the splint function, so that the rigidity of the entire temple can be imparted.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a partial perspective view showing an exploded state of the embodiment of the present invention.

FIG. 3 is a partial top view illustrating an embodiment of the present invention.

FIG. 4 is a partial top view illustrating a state where a temple is bent in the embodiment of the present invention.

[Description of Signs] 1 Front frame 11 Rim 12 Lens 2 Bracket J 21 Piece 3 Split member 31 First wing moving piece 31a Wing piece 31b Inner crotch gap 32 Hook projection 32a Head 4 Elastic temple 41 Second wing Piece 42 Hanging fork 43 Flexible part 5 Pivot M Modern

Claims (3)

[Claims] 1. A bracket (2) which is disposed on the eyepieces on both sides of the front frame (1) of the eyeglasses and has pieces (21) in a take-out portion.
A split member 3 having a first wing moving piece portion 31 on the base end side and a locking projection 32 protruding from the free end side; and having a second wing moving piece portion 41 on the base end side; An elastic temple 4 on which a latching fork 42 is taken out and formed at a portion opposed to the latching projection 32; a first wing moving member 31 of the split member 3; Second of elastic temple 4
The pivot member 5 coaxially supports the wing moving piece portion 41. The split member 3 and the elastic temple 4
A latching projection protruding from the free end of the split member 3
32 and a locking fork 42 taken out and formed on the elastic temple 4 are connected by a clearance connection slidable in the longitudinal direction, and a flexible portion 43 extending from this connection portion to the second wing moving piece portion 41 has a certain degree or more. A spring-type temple for eyeglasses, wherein the split member 3 exerts a splint function and imparts rigidity to the entire temple when the elastic deformation force of (1) is applied. 2. The first wing moving part 31 of the split member 3
It is formed by two wing pieces 31a, 31a, and the bracket 5 is pivoted by the pivot 5 in a state where the second wing moving piece 41 of the elastic temple 4 is inserted into the inner crotch gap 31b between the wing pieces 31a and 31a. 2. The pair of spring-type temples for eyeglasses according to claim 1, wherein said pair of pieces are pivotally supported coaxially. 3. The spring-type temple for eyeglasses according to claim 1, wherein the split member 3 has been subjected to decorative processing such as modeling or jewelry decoration.