JP2001290110A - Spring hinge spectacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide spring hinge spectacles which are capable of imparting urging force in a folding direction to temples with extremely simple constitution and realize comfortable wearing by the temples which clamp the side head parts of a user with adequate pressure. SOLUTION: The technical means comprising bracket endpieces 1 which are disposed on both right and left sides of a spectacle front F and which themselves consist of spring-like wires 11 and 11 parallel to each other one above the other; temple butt parts 2 which are returned and formed to a hairpin curve shape by extending the spring-like wires 11 on the front F side or projecting side of the bracket endpieces 1, pivotal supporting parts 3 which are disposed to a coaxial relation one above the other at the required points of the bracket endpieces 1 and the temples 5 and 5 which are pivotally supported with the pivoted supporting part 3 at their base end side by pivots 4 and elastically repulse their base ends 51 by butting against the butt parts 2 when their free end sides are spread and turned outward to the maximum possible extent with respect to the spectacle front F around the pivots 4 as fulcra is adopted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring hinge mechanism for spectacles, and more particularly to a temple having a very simple structure capable of applying a biasing force to a temple in a folding direction. The present invention relates to spring hinge glasses that realize comfortable wearing by pinching the lens with an appropriate pressure.

[0002]

2. Description of the Related Art When trying to put on and take off eyeglasses, the free end side of the temple tends to inevitably expand outward, which causes a large force to be applied to the base end portion of the temple. In addition, the eyeglass frame was easily broken or deformed. Conventionally, as a proposal for eliminating such adverse effects, one hinge piece part of a hinge for hinge-connecting the front frame and the temple can be elastically advanced and retracted by a coil spring provided at the base end of the temple. There is a so-called "spring hinge".

[0003] However, since the structure of the spring hinge is generally complicated and the components thereof are minute, the components constituting the temple hinge are frequently worn due to frequent temple opening and closing operations.
Immediately, this outward spreading operation becomes sweet, or conversely, the sweat or sebum of the wearer permeates into the hinge mechanism and corrodes the spring, etc., and it is difficult for the temple to return to its original state while expanding outward. Sometimes it was.

When such a failure occurs, it is necessary to replace the spring hinge. However, the conventional spring hinge has a complicated structure, as described above, and the replacement operation is very troublesome and requires a lot of skill. In addition, there is a dissatisfaction that the cost is inevitably increased due to the small number of components and the large number of components.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks.
A spring hinge eyeglass that can apply a biasing force to the temple with an extremely simple configuration in the folding direction, and this temple clamps the user's temporal region with appropriate pressure to realize comfortable wearing. Is to do.

[0006]

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 J1 which is disposed on the left and right sides of the spectacle front F, and which itself is formed of a spring wire 11 which is vertically parallel to the front F side of the bracket J. Alternatively, the temple abutting portion 2 formed by extending the spring wire 11 on the take-out side and forming a folded back into a hairpin curve.
A pivot portion 3 provided at a required position of the bracket J in a vertical coaxial relationship; a base end of the pivot portion 3 is pivotally supported by a pivot 4, and a free end side of the pivot 4 is used as a fulcrum and an eyeglass front F In contrast, a technical means is adopted in which the base end portion 51 comprises the temples 5, 5 which are elastically repelled by abutting against the abutting portion 2 when extended and rotated outward to the maximum extent. did.

Further, in order to solve the above-mentioned problems, the present invention provides a technique in which, in addition to the above means, if necessary, the pivotal support 3 is formed by forming upper and lower spring wires 11 into a loop shape. Tactics were adopted.

[0009]

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

First Embodiment A first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, what is indicated by a reference numeral F is a pair of rims R, R, which are symmetrically connected to each other by a bridge B. A pair of rims R, R are symmetrically connected to each other. Are arranged. This bracket Ji1 is nickel-
The springy wires 11 made of a titanium-based superelastic alloy are bent in parallel to be formed vertically. An abutment portion designated by reference numeral 2 is an abutment portion. The abutment portion 2 is formed by extending the spring wire 11 on the take-out side of the bracket J and bending it inward in a hairpin curve shape. . In this embodiment, the abutment portion 2 is formed on the take-out side. And pivot support parts 3 are provided at required positions of the bracket J in a vertically coaxial relationship. The one designated by the reference numeral 5 is a temple, and the pivot 4 is disposed on the base end side of the temple 5.

First, the spring wire 11 is bent to form a bracket 1. In this embodiment, bracket 1
First, one end of the lower springy wire 1 is welded to the rim R (Japanese Patent No. 2516447 once proposed by the present inventor).
And once taken out to the outside and rear of the glasses, bent inward and forward so as to have a substantially U-shape on a horizontal plane, and formed into a hairpin curve at the end of the extended lower spring wire 1. The abutting portion 2 is formed by folding back. The upper springy wire 1 is also bent and formed so as to be parallel to the lower springy wire 1 at a constant interval, and is similarly joined to the rim R by welding to form a continuous integral structure. Further, the pivot portions 3.3 are attached to the upper and lower spring wires 11 by welding in a vertically coaxial relationship.

Next, on the base end side of the temple 5, the pivot 4 is provided so as to project in a direction perpendicular to the temple 5. Then, the pair of upper and lower spring wires 11 and 11 are vertically and coaxially welded to each other by welding, and the pivot 4 is pivotally supported on the pivotally supporting portions 3 and 3 formed so as to be capable of bearing, and the temple 5 is hinged so as to be freely opened and closed. . As shown in FIG. 2, if the temple 5 is to be further expanded outward from the normally opened state, the base end 51 of the temple 5 abuts the abutment portion 2 with the pivot 4 as a fulcrum. The pair of upper and lower spring wires 11 are elastically deformed via the abutting portion 2, and the temple 5 can be urged in the folding direction by the elastic repulsive force.

"Second Embodiment" A second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, as in the first embodiment, one springy wire 11 is bent to form a pair of upper and lower substantially U-shaped brackets 1 continuously and integrally. Also, the spectacle front F of the present embodiment employs a half rim that holds only the upper chord of the lens L on the rim R,
By arranging the brackets J1 at both ends of the spectacle front F, the same effect as in the first embodiment can be obtained.

[Third Embodiment] A third embodiment of the present invention will be described with reference to FIGS. In this embodiment, the pivots 3 are provided on the base end side of the bracket J, and the pivot 4 is hinged and pivoted in the same manner as in the first embodiment of the temple 5 to be bent into a substantially U-shape. After the bracket 1 is integrally welded with the lens stopper in the vicinity of the end, an abutting portion 2 is formed at the extended end. Even with this configuration, the base end portion 51 abuts against the abutment portion 2 when the temple 5 is expanded, so that the temple 5 can be urged in the folding direction. The spectacle front F of the present embodiment is a bridge B
The left and right lenses L are formed of lenses L connected and supported side by side. By arranging brackets 1 at the left and right ends of the left and right lenses L, the same effect as in the first embodiment described above can be obtained.

"Fourth Embodiment" A fourth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the pivot portions 3, 3 disposed on the bracket 1 are formed integrally by bending the upper and lower spring wires 11, 11 into a loop. Therefore, it is not necessary to separately form the bearing members as the pivots 3 and weld and attach them, so that the molding is simple and the cost can be reduced.

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 spring wire 11 is a nickel-titanium superelastic alloy. Not limited to this, any elastic material may be used,
Also, the combination of the shape of the bracket J and the shape of the spectacle front F is not limited to this embodiment.

[0017]

As described above with reference to the embodiments, the present invention has a very simple structure of bending a resilient wire, and uses a pivot shaft as a fulcrum when expanding the temple. By pressing the abutting part against the abutting part, it is possible to apply a biasing force in the folding direction of the temple, so the structure is complicated and the replacement work is very troublesome, as with the conventional spring hinge described above. In addition, it is possible to eliminate the dissatisfaction that the cost is inevitably increased because the number of components is small and the number is large, and the utility value in industry is extremely high.

[Brief description of the drawings]

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

FIG. 2 is an enlarged front view illustrating the first embodiment of the present invention.

FIG. 3 is an overall perspective view showing a second embodiment of the present invention.

FIG. 4 is an enlarged front view illustrating a second embodiment of the present invention.

FIG. 5 is an overall perspective view showing a third embodiment of the present invention.

FIG. 6 is an enlarged front view illustrating a third embodiment of the present invention.

FIG. 7 is an enlarged front view illustrating a fourth embodiment of the present invention.

FIG. 8 is an enlarged front view illustrating a fourth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 bracket bracket 11 spring wire 2 abutment part 3 pivot part 4 pivot 5 temple 51 base end F glasses front R rim L lens B bridge

Claims (5)

[Claims] Claims: 1. An eyeglass front F is provided on both left and right sides,
And a bracket 1 consisting of spring wires 11 and 11 which are vertically parallel to each other; and a front F of the bracket 1
Extend the spring wire 11 on the side or take-out side to extend the hairpin
A temple abutting portion 2 formed in a folded shape; a pivotal support 3 provided in a required position of the bracket J in a vertically coaxial relationship; a pivot 4 pivotally supports the pivotal support 3 at the base end side. When the free end side is fully extended and rotated outward with respect to the spectacle front F with the fulcrum 4 as a fulcrum, the base end 51
Spring hinged eyeglasses comprising a pair of temples 5,5 which abut against the abutting portion 2 and are resiliently repelled. 2. An eyeglass front F includes left and right lenses L,
A rim (R) connected to a bridge (B) and supporting the left and right lenses (L) in a side-by-side state in parallel with each other, and brackets (1) are disposed at both left and right ends of the front (F) of the spectacles. Spring hinge glasses according to 1 3. A spectacle front F is constituted by left and right lenses L and a half rim H holding only the upper chord of the same lens, and brackets J1 are disposed on both left and right ends of the spectacle front F. The spring hinge glasses according to claim 1, wherein 4. The eyeglass front F comprises a lens L connected and supported by a bridge B in a side-by-side state, and brackets 1 are provided at both ends of the left and right lenses L. Spring hinge glasses of the glasses according to 1. 5. The pivotal support 3 is formed by forming upper and lower springy wires 11 and 11 into a loop shape.
The spring hinge glasses according to any one of Items 1 to 4.