JP2931893B2 - Spring hinge of glasses - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a spring hinge of spectacles, and more particularly, an elastic expansion operation of a temple can be performed very smoothly, and replacement of an ear-hook temple is inexpensive. The present invention relates to a spectacle frame spring hinge that can be performed.

[0002]

2. Description of the Related Art As is well known, when putting on and taking off eyeglasses, the free end side of the ear-hook temple tends to inevitably expand outward, whereby a large force is applied to the base end portion of the temple. It is easy to cause a trouble or deformation of the eyeglass frame. In the past, as a proposal to eliminate such adverse effects, one hinge piece part of the hinge connecting the front frame and the ear hanging temple can be elastically moved forward and backward by a coil spring built in the temple base end There is a so-called "spring hinge".

However, the conventional spring hinge is configured so that the hinge piece itself is resiliently advanced and retracted with respect to the ear temple as described above. It was not smooth. That is,
In the conventional spring hinge, when the ear hook temple is expanded elastically outward from the normal expanded state, the center point of the pivoting movement of the ear hook temple moves from the hinge piece to the temple base end. In this case, the movement to the abutment portion of the portion causes the movement of the rotation center point to impair the smoothness of the temple opening operation.

Furthermore, the conventional spring hinge incorporates a spring urging means such as a coil spring in the ear hook temple, so that the ear hook temple may be deformed, for example, so that the ear hook temple may be deformed. When replacement is required, the ear hanging temple must be replaced together with the spring hinge, and there is a problem that the temple replacement cost is high.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional spring hinge, and it is intended to perform the elastic expansion operation of the ear hook temple very smoothly. Another object of the present invention is to provide a pair of eyeglass spring hinges which can be manufactured and can be replaced at very low cost.

It is another technical object of the present invention to provide a spring hinge for spectacles in which the spring elasticity can be easily adjusted, in addition to the above-mentioned problems.

Still another object of the present invention is to provide a spring hinge for eyeglasses which can be manufactured at low cost, in addition to the above-mentioned problems.

[0008]

SUMMARY OF THE INVENTION The present invention provides the above-mentioned technical features.
In order to solve the problem, a piece part H provided at the end on the take-out side of the end piece E at both left and right ends of the spectacle front frame F
₁ and a counterpart piece H provided at the base end of the ear-hanging temple T
₂ is an eyeglass hinge hingedly connected to a hinge screw S by a hinge screw S, and a bottomed receiving hole 1 having a female screw 11 formed at an opening edge is formed at an end of the end piece E. And
A coil spring 2 in a compressed state and a screw-type slider 3 having an enlarged diameter head 31 are inserted into the bottomed receiving hole 1, and a female screw 11 of the bottomed receiving hole 1 is inserted into the outer peripheral surface of the cylinder. The cylindrical stopper 4 engraved with the male screw 41 is screwed,
By utilizing the spring elasticity of the compression coil spring 2, the distal end portion 32 of the screw type slider 3 is protruded from the cylindrical hole of the cylindrical type stopper 4 so as to be able to reciprocate forward and backward.
A technical means is employed in which the distal end 32 of the screw type slider 3 is elastically brought into contact with the base end of the ear hanging temple T at the time of expanding the urging temple T to urge the ear hanging temple T in the folding direction.

The present invention also solves the above technical problems.
In order, the corresponding structural frame components H ₂ provided at the proximal end portion of the frame component H ₁ and MimiKake temple T provided at the end of the lifting exit side of the end piece E of the right and left end portions of the spectacle front frame F Is an eyeglass hinge which is hinged rotatably with a hinge screw S, and a female screw 51 is engraved on one end of an end of the end piece E, and a hole is formed in the other opening 52. A cylindrical housing case 5 having a locking projection 52a formed toward the center is additionally provided, and a flange 61 is provided at the rear end of the cylindrical housing case 5.
Slider 6 around which a coil spring 7 is compressed
A screw-type stopper 8 having a male screw 81 engraved on the outer peripheral surface of the head is screwed to the female screw 51 of the cylindrical housing case 5, and the spring elasticity of the compression coil spring 7 is used. By doing so, the distal end 62 of the flanged slider 6 can be elastically moved forward and backward through the opening 52 of the cylindrical housing case 5 in a state where the flange 61 is locked by the locking projection 52 a of the cylindrical housing case 5. When the ear-hung temple T is expanded, the distal end 62 of the flanged slider 6 is elastically contacted with the base end of the ear-hook temple T to urge the ear-hook temple T in the folding direction. Technical measures were adopted.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on first to third embodiments shown in the accompanying drawings. FIG. 1 is a schematic plan view showing an eyeglass frame to which the spring hinge of the first embodiment is applied, and FIGS. 2 to 4 are partially enlarged plan views illustrating the configuration and operation of the spring hinge of the first embodiment. FIG. 5 is a schematic plan view showing a spectacle frame to which the spring hinge according to the second embodiment is applied, FIG. 6 is a partially enlarged plan view illustrating the configuration of the spring hinge according to the second embodiment, and FIG. FIG. 8 is a schematic plan view showing an eyeglass frame to which a spring hinge according to an embodiment is applied, FIG. 8 is a partially enlarged plan view illustrating a configuration of the spring hinge according to the third embodiment, and FIG. 9 is an implementation of the spring hinge according to the third embodiment. It is a partial enlarged plan view explaining a modification.

[First Embodiment] In FIG. 1, what is indicated by reference numeral F is a pair of rims R and R which are symmetrically connected to each other by a bridge B. End pieces EE are brazed to both ends. Also,
In the figure, the reference numeral N indicates a nose pad which is brazed and joined to opposing inner portions of the pair of rims R, R, and the reference numeral T indicates an ear hanging temple.

[0012] The spring hinge of the present embodiment, Ding and counterpart piece parts H ₂ provided on the base end portion of the lifting exit side of the end piece component H ₁ and MimiKake temple T provided on the end piece E The eyeglass hinge is hinged so as to be foldable and hinged with a number screw S. By using the spring elasticity of a coil spring provided in the end piece E, the ear hook temple T is elastically moved outward from a normally opened state. It is configured to be able to expand (see FIG. 1).

That is, as shown in FIGS. 2 to 4, a bottomed accommodation hole 1 having an opening on the temple side and extending along the longitudinal direction of the end piece is formed at the end of the end piece E on the take-out side. A female screw 11 is provided at the opening edge of the bottomed accommodation hole 1.
Is engraved. And in this bottomed accommodation hole 1,
While the coil spring 2 in the compressed state and the screw type slider 3 having the enlarged diameter head 31 are inserted from the temple side,
A cylindrical stopper 4 having a male screw 41 engraved on the outer peripheral surface of the cylinder is screwed into the female screw 11 of the bottomed receiving hole 1. The one designated by reference numeral 42 is a slit formed at the end of the cylindrical stopper 4 for screwing work by a driver.

With this configuration, the screw type slider 3
Is energized to the temple side by the coil spring 2 in a compressed state at the enlarged diameter head 31, while the enlarged diameter head 31 is engaged by the cylindrical stopper 4 screwed to the opening edge of the bottomed receiving hole 1. As a result, the tip portion 32 of the screw type slider 3 is protruded from the cylindrical hole of the cylindrical stopper 4 so as to be capable of elastically moving forward and backward.

As shown in FIGS. 2 to 4, when the ear-hanging temple T is expanded, the distal end 32 of the screw-type slider 3 is elastically attached to the abutment surface at the base end of the ear-hanging temple T. As a result, the screw-type slider 3 urges the ear-hanging temple T in the folding direction, so that the ear-hanging temple T can be elastically expanded.

As shown in FIGS. 2 to 4, in the spring hinge according to the present embodiment, the ear hook temple T is elastically expanded outward from a normally opened state (see FIG. 2). (FIG. 3
Also, see FIG. 4), the center point of the pivoting movement of the ear-hook temple T is moved to the abutment portion of the ear-hook temple T as in the conventional product while remaining at the hinge piece parts H ₁ and H _2. Or not. Therefore, the temple elasticity expanding operation is smoother than that of the conventional product, and it is possible to provide a user-friendly spectacle frame.

Further, in the spring hinge of the present embodiment, all the spring biasing mechanisms for realizing the temple elastic expansion are formed on the end piece E side, and the ear hanging temple T is provided with any mechanism. I haven't. Therefore, for example, when it is necessary to replace the ear temples due to deformation of the vine or the like, just like a normal eyeglass frame, only the ear temples need to be exchanged, and the temple exchange is also inexpensive. It can be done easily. There is no need for a high temple replacement cost as in a conventional product in which a spring mechanism is provided on the ear hanging temple side.

In the spring hinge of the present embodiment,
The tip 32 of the screw type slider 3 is formed in a spherical shape. Thus, the temple elastic expansion can be performed more smoothly. In the present embodiment, the screw stopper 3 is prevented from falling off by screwing the cylindrical stopper 4 to the opening edge of the bottomed receiving hole 1, so that the degree of screwing of the cylindrical stopper 4 is adjusted. By doing so, the protrusion amount of the screw type slider 3 and the compression state of the coil spring 2 can be appropriately adjusted. Therefore, it is possible to easily change the angle range (approximately 32 ° in the present embodiment), the elastic expanding force, and the like of the ear temple T in accordance with the TPO.

[Second Embodiment] A spring hinge according to a second embodiment shown in FIGS. 5 and 6 has a cylindrical housing case 5 attached to the outside of the end of the end piece E by brazing. It is characterized in that a spring biasing mechanism such as a coil spring is housed in the storage case 5.

That is, as shown in FIG.
The cylindrical housing case 5 attached to the end on the take-out side has a cylindrical shape, and a female screw 51 is engraved on one opening edge of the cylindrical housing case 5, while A locking projection 52a is formed in the temple-side opening 52 toward the center of the circular hole. A flanged slider 6 having a flange 61 at the rear end and a coil spring 7 in a compressed state are inserted into the cylindrical housing case 5 from the opposite side of the temple. A screw-type stopper 8 having a male screw 81 engraved on the outer peripheral surface of the head is screwed to the female screw 51 of the fifth embodiment. What is indicated by reference numeral 82 is a slit formed at the end of the screw type stopper 8 for screwing work by a driver.

With this configuration, the flanged slider 6 can
While being urged toward the temple by the coil spring 7 in a compressed state, the flange 61 is locked by a locking projection 52 a formed in the opening 52 of the cylindrical housing case 5. The leading end 62 of the slider 6 is projected from the opening 52 of the cylindrical housing case 5 so as to be capable of elastically moving forward and backward.

When the ear-hung temple T is expanded, the front end 62 of the flanged slider 6 is
Elastically comes into contact with the abutment surface of the base end of the earpiece, and the flanged slider 6 urges the ear-hanging temple T in the folding direction so that the ear-hanging temple T can be elastically expanded. is there.

In the spring hinge of the present embodiment, similarly to the first embodiment, the ear hook temple T is normally opened (FIG. 5).
But if allowed to further elastically expanded outward from the solid line reference) in (see two-dot chain line in FIG. 5), the center point of the rotational movement of MimiKake temple T is a hinge frame part H ₁ · H ₂ While staying,
It does not move to the abutment portion of the ear hanging temple T as in the conventional product. Therefore, the temple elastic opening operation can be performed more smoothly than the conventional product, and a convenient eyeglass frame can be provided.

In the spring hinge of the present embodiment, all the spring biasing mechanisms for realizing the temple elastic expansion are housed in the cylindrical housing case 5, and this cylindrical housing case 5 is attached to the end piece E. And, like the first embodiment,
No mechanism is attached to the ear hanging temple T. Therefore, it is possible to manufacture at very low cost, and even when the vine part is deformed and it becomes necessary to replace the ear temple, just like the ordinary eyeglass frame, only the ear temple is replaced. And the temple can be easily and inexpensively exchanged. Moreover, since the end piece E can be prevented from being enlarged by adopting the cylindrical storage case 5, the face width is larger than the distance between the left and right eyes without deteriorating the balance of the appearance of the spectacle front frame F. It is possible to provide a spectacle frame that is suitable for a person.

In the spring hinge of the present embodiment,
The distal end portion 61 of the flanged slider 6 is formed in a spherical shape. Thereby, the temple elastic expansion can be performed more smoothly. In this embodiment, the screw-type stopper 8 is screwed onto the female screw 51 of the cylindrical housing case 5 to prevent the slider with flange 6 from dropping off. Therefore, the screw-in degree of the screw-type stopper 8 is adjusted. Thereby, the protrusion amount of the flanged slider 3 and the compression state of the coil spring 7 can be appropriately adjusted. Therefore, it is possible to easily change the angle range of elastic expansion and the elastic expansion force of the ear hanging temple T according to the TPO.

[Third Embodiment] A spring hinge according to the present embodiment shown in FIGS. 7 and 8 includes the cylindrical housing case 5 of the second embodiment described above at the end of the end piece E on the take-out side. It is characterized in that it projects in an orthogonal state, and the other configuration is the same as that of the second embodiment.

In this embodiment, as shown in FIG. 8, a fitting hole E ₀ is opened at the take-out end of the end piece E, and the cylindrical housing case 5 is fitted to the fitting hole E ₀ in a state orthogonal to the fitting hole E _0. The cylindrical housing case 5 protrudes in a direction substantially parallel to the spectacle front frame F by brazing. The distal end portion 62 of the slider with flange 6 housed in the cylindrical housing case 5 so as to be capable of elastically moving forward and backward is brought into elastic contact with the side surface of the base end portion of the ear hanging temple T. Thus, when the ear-hanging temple T is expanded, the flanged slider 6
Urges the ear-hanging temple T in the folding direction, so that the ear-hanging temple T can be elastically expanded.

As in the embodiment shown in FIG. 9, a cylindrical contact terminal T ₁ is provided at the base end of the ear-hanging temple T, and the distal end 62 of the flanged slider 6 is elastically attached to the contact terminal T _1. Of course, it may be good to make contact. In this case, the elastic expansion of the ear hanging temple T can be performed more smoothly.

[0029]

As described above in the embodiment, in the spring hinge according to the present invention, even when the ear hook temple is elastically expanded outward from the normally opened state, the ear hook is also provided. Since the center point of the pivoting movement of the temple does not move, the temple elastic opening operation is smoother and easier to use than the conventional spring hinge which is configured so that the hinge piece itself can move forward and backward. An eyeglass frame can be provided.

Further, all the spring biasing mechanisms for realizing the temple elastic expansion are provided on the end piece side, and no mechanism is provided on the ear-hanging temple side. If it is necessary to replace the ear hanging temple, it is only necessary to replace the ear hanging temple, and the temple replacement cost is high like the conventional product that attached the spring mechanism on the ear hanging temple side. It won't be.

Furthermore, when a stopper for preventing the slider for urging the ear hook by the spring elasticity of the coil spring from falling off is screwed to the end piece part or the like, the degree of screwing of the stopper is adjusted. By doing so, it becomes possible to change the angle range of elastic expansion of the ear hanging temple T, the elastic expanding force, and the like, and easily adjust the elastic expanding of the ear hanging temple appropriately according to the TPO. obtain.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an eyeglass frame to which a spring hinge according to a first embodiment is applied.

FIG. 2 is a partially enlarged plan view illustrating the configuration and operation of a spring hinge according to the first embodiment.

FIG. 3 is a partially enlarged plan view illustrating the configuration and operation of a spring hinge according to the first embodiment.

FIG. 4 is a partially enlarged plan view illustrating the configuration and operation of a spring hinge according to the first embodiment.

FIG. 5 is a schematic plan view showing an eyeglass frame to which a spring hinge according to a second embodiment is applied.

FIG. 6 is a partially enlarged plan view illustrating a configuration of a spring hinge according to a second embodiment.

FIG. 7 is a schematic plan view showing an eyeglass frame to which a spring hinge according to a third embodiment is applied.

FIG. 8 is a partially enlarged plan view illustrating a configuration of a spring hinge according to a third embodiment.

FIG. 9 is a partially enlarged plan view showing a modification of the spring hinge according to the third embodiment;

[Explanation of symbols]

F Glasses front frame E End piece H ₁ piece part H ₂ phase piece part S Hinge screw 1 Bottom receiving hole 11 Female screw 2 Coil spring 3 Screw type slider 31 Large diameter head 32 Tip 4 Cylindrical stopper 41 Male screw 5 Cylindrical Housing case 51 Female screw 52 Opening 52a Locking protrusion 6 Flanged slider 61 Flange 62 Tip 7 Coil spring 8 Screw slider 81 Male screw

Claims (3)

(57) [Claims] 1. A counterpart provided at the proximal end portion of the lifting exit side of the frame provided at the end part H ₁ and MimiKake temple T of the end-piece E of the right and left end portions of the spectacle front frame F frame parts H ₂ And a hinged hinge rotatably connected to a hinge screw S by a hinge screw S. A bottomed receiving hole 1 having a female screw 11 formed at an opening edge is formed at an end of the end piece E. A coil spring 2 in a compressed state and a screw type slider 3 having an enlarged diameter head 31 are inserted into the bottomed receiving hole 1, and the female screw 11 of the bottomed receiving hole 1 has a cylindrical outer periphery. A cylindrical stopper 4 having a male screw 41 engraved on its surface is screwed, and the distal end portion 32 of the screw type slider 3 is elastically advanced and retracted from the cylindrical hole of the cylindrical stopper 4 by utilizing the spring elasticity of the compression coil spring 2. This screw-type slider is movably protruded when the ear-hanging temple T is expanded. 3. A spring hinge for eyeglasses, characterized in that the front end 32 of the eyeglasses 3 elastically contacts the base end of the ear-hanging temple T to urge the ear-hanging temple T in the folding direction. 2. A phase square provided at the proximal end portion of the lifting exit side of the frame provided at the end part H ₁ and MimiKake temple T of the end-piece E of the right and left end portions of the spectacle front frame F frame parts H ₂ And a hinge hinge rotatably hinged with a hinge screw S, wherein an end portion of the end piece E is provided with a female screw 51 at one opening edge, and the other opening 52 has A cylindrical housing case 5 having a locking projection 52a formed toward the center of the hole is additionally provided. In the cylindrical housing case 5, a flanged slider 6 having a flange 61 at the rear end is provided. And the coil spring 7 in a compressed state are inserted.
A screw-type stopper 8 having an external thread 81 engraved on the outer peripheral surface of the head is screwed to the head 51, and the elasticity of the compression coil spring 7 is used to engage the stopper projection 52 a of the cylindrical housing case 5. With the flange 61 locked, the distal end portion 62 of the flanged slider 6 is protruded from the opening 52 of the cylindrical housing case 5 so as to be able to reciprocate forward and backward. 6. A spring hinge for eyeglasses, characterized in that the distal end 62 of the eyepiece 6 elastically contacts the base end of the ear hanging temple T to urge the ear hanging temple T in the folding direction. 3. A cylindrical storage case 5 is provided at an end on the take-out side of the end piece E in a direction substantially parallel to the spectacle front frame F. When the ear-hanging temple T is expanded, the flanged slider is provided. 3. The pair of eyeglasses according to claim 2, wherein the distal end portion 62 of the eyeglasses 6 elastically contacts the side surface of the base end portion of the ear hanging temple T to urge the ear hanging temple T in the folding direction. Spring hinge.