JP2838491B2 - Eyeglass frame with oblique hinge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle frame capable of rotating not only a horizontal direction but also a vertical direction, and more particularly to a spectacle frame which is slim but resistant to deformation. can do.

[0002]

2. Description of the Related Art Recently, an eyeglass frame having a wide field of view and a light weight, that is, a rim or the like surrounding a lens does not obstruct the view,
Eyeglass frames that are light and comfortable to wear are gaining popularity, and so-called “fine eyeglasses” with reduced rims and temples,
The so-called "two-point glasses" in which the spectacle lens is directly screwed without using a rim is popular.

[0003] On the other hand, there have been many voices in these slim and simple eyeglasses, particularly, that the front part of the eyeglasses such as end pieces and bridges is immediately deformed. Recently, front parts such as end pieces have been made smaller and smaller in diameter to make the glasses as slim and light as possible.For example, when playing sports, accidentally put your fingers on the glasses. When an external force is applied to the spectacle frame, such as by being hooked, stress is concentrated on the front portion of the spectacles, and the portion is easily plastically deformed.

[0004] However, at present, there is provided an ear hanging temple formed of a super-elastic alloy such as a nickel-titanium alloy and imparting super-elasticity to the temple to prevent deformation of the eyeglass frame. I have. However, even if the temple flexibly elastically deforms at the moment when an external force is applied, the temple elastic deformation alone only slightly reduces the impact force applied to the spectacle front part, especially the end piece part, and the The effect of avoiding stress concentration was not sufficient, and it was not possible to reliably prevent plastic deformation of the front part of the spectacles.

In order to prevent deformation of the glasses, a spring body is incorporated in a hinge part for hinge-connecting the ear-hook temple and the end piece, so that the temple is further outwardly than a normal expanded position. A "spring hinge" configured to be elastically expandable is also provided. This is to make the hinge itself have a spring property. However, like the super-elastic temple described above, the effect of avoiding stress concentration at the front part of the glasses cannot be said to be sufficient. The rotation direction of the `` spring hinge '' itself was still limited only to the horizontal direction, so if an external force in the vertical component direction was applied to the eyeglass frame, this spring hinge would not be able to disperse any external force. However, the external force in the vertical direction is directly applied to the end piece and other front portions of the spectacles, and the end piece and the like are easily twisted and deformed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks in the conventional eyeglass frame, and the ear-hook temple is rotated not only horizontally but also vertically. Accordingly, it is a technical object to provide a spectacle frame that is resistant to deformation and that can effectively escape external force applied from any direction without concentrating it on the front part of the spectacles such as end pieces. Things.

Another object of the present invention is to provide an eyeglass frame which has a simple and slim eyeglass structure and is resistant to deformation due to external force.

[0008]

SUMMARY OF THE INVENTION The present invention relates to an eyeglass frame in which a pivot axis of a hinge means 5 for rotatably hinge-connecting an ear hanging temple 6 to an eyeglass front F is disposed substantially horizontally. , Left and right spectacle lenses 1 and 1
1. Left and right lens holding means 2 for holding each lens 1, a bridge 3 for connecting these lens holding means 2.2 in parallel left and right symmetrically, and disposed on both outer sides of the lens holding means 2.2. The virtual front surface α is assumed as an upright plane including the spectacle front F composed of the end pieces 4 and 4, and the virtual temple surface β is
Temple 6 hinged to the end of the body via hinge means 5
Is assumed to be an upright plane including the temple 6 when it is expanded to use the glasses, the rotation axis of the hinge means 5 is defined by the virtual front surface α and the virtual temple surface β.
Approximately on the bisecting hinge surface γ that bisects the dihedral angle approximately
The above problem was solved by adopting a technical means of horizontal arrangement.

Further, the present invention has been made to solve the above problems.
In addition to the above means, if necessary eye MimiKake temple 6
Hinge means 5 hingedly connected to mirror front F
Is a first locking pin 51 formed at the end of the end piece 4,
It comprises a second locking pin 52 formed on the base end side of the temple 6, and a fastening member 53 for connecting the first locking pin 51 and the second locking pin 52 so as to be relatively rotatable. The fastening member 53 is provided with a pair of connecting holes 53a, and the connecting holes 53a.
And the second locking pin 52 are inserted so that at least one of them is freely rotatable around the axis, and when the temple 6 is expanded in the eyeglass use state, the first locking pin 51 is attached to the temple 6. A technical means of abutting and / or the second locking pin 52 abutting against the end piece 4 to restrict the rotation of the temple 6 to a required range is employed.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;
This will be described in detail based on the second embodiment. FIG.
Is the rotation axis of the oblique hinge according to the present invention and the front of the glasses.
Schematic perspective view showing an angular relationship, FIG. 2 is a schematic perspective view showing the entire first embodiment spectacle frame according to the present invention, FIG. 3 is a schematic perspective view showing a folded state of the temple of the eyeglass frame, FIG. 4 FIG. 5 is a main part plan view showing the configuration of the oblique axis hinge of the eyeglass frame, FIG. 5 is a side view of the main part showing the configuration of the oblique axis hinge of the eyeglass frame, and FIG. FIG. 7 is a plan view of a main part showing the configuration of the oblique hinge of the full-rim glasses according to the present invention.

FIG. 8 is a plan view of a main part showing the configuration of the oblique hinge of the spectacle frame according to the second embodiment of the present invention, and FIG. 9 is an exploded view showing the oblique hinge of the eyeglass frame. It is a part perspective view.

First Embodiment As shown in FIG. 2, the present embodiment is one in which a diagonal hinge is applied to a so-called "two-point type spectacle frame". That is, the pair of left and right spectacle lenses 1 and 1 are directly screwed and screwed by the lens holding means 2 composed of bolts and nuts in the vicinity of the lens periphery, and are connected in parallel symmetrically in parallel via the bridge 3. And these lenses 1
-End pieces 4.4 are arranged on the left and right outer end sides of 1.

The spectacle lens 1, the lens holding means 2, the bridge 3, and the end piece 4 constitute a spectacle front F. The oblique hinge means 5 which is the most important feature of the present invention is The ear hook temples 6 are hinged so as to be freely foldable by being arranged on the outer end sides of the left and right end pieces 4 on the front F while maintaining an angular position described later.

As shown in FIGS. 4 and 5, the hinge means 5 of the present embodiment comprises a first locking pin 51 formed at the end of the end piece 4, and a second locking member formed at the base end of the temple 6. Stop pin 52,
And a fastening member 53 for connecting the first locking pin 51 and the second locking pin 52 so as to be relatively rotatable.

The first locking pin 51 of this embodiment is formed by bending the outer end of the end piece 4 made of a round metal wire inward at a horizontal angle of about 45 ° with respect to the spectacle front F. It has a hook portion 51a bent downward at its tip. On the other hand, the second locking pin 52
The temple 6 made of a metal round wire is formed by bending the base end side outward in a horizontal angle of about 45 ° with respect to the spectacle front F, and further has a hook portion 52a bent downward at the tip end. Have.

The fastening member 53 of this embodiment is formed of a polyurethane resin in a rectangular parallelepiped shape, and a pair of connecting holes 53a, 53a having substantially the same diameter as the locking pins 51, 52 are formed on the side surfaces thereof. , Has been established. The connection holes 53a of these fastening members 53
The first locking pin 51 and the second locking pin 52 are inserted into the 53a so as to be rotatable around their respective axes.

That is, when a virtual front surface α is assumed as a substantially vertical standing plane including the spectacle front F, and a virtual temple surface β is assumed as a substantially vertical standing plane including the temple 6 in the expanded state, The first locking pin 51 or the second locking pin 52 includes a virtual front surface α and a virtual temple surface.
on the bisecting hinge surface γ that bisects the dihedral angle formed by β
In such a manner that they are arranged in a substantially horizontal state (see FIG. 1).

As described above, in the eyeglass frame of the present embodiment, the pivots of the hinge means 5 (that is, the first locking pin 51 and the second locking pin 52) are laid down in a substantially horizontal state. Since the ear temples 6 are arranged so as to form an angle of about 45 ° with respect to the spectacle front F, the ear-hanging temple 6 has a locus of a conical side shape having a vertex angle of about 90 ° with the hinge means 5 as a vertex. Is performed (see FIG. 2), and is folded on the spectacle front F (see FIGS. 3 and 6).

Conversely, when the temple 6 is opened to use the spectacles, the first locking pin 51 abuts against the temple 6 at the hook portion 51a, and the second locking pin 52 further connects to the hook portion 52.
By abutting against the end piece 4 at a, the conical rotation of the temple 6 is restricted to an appropriate rotation angle range.

FIGS. 4 and 6 show that the temple 6 is folded when only the second locking pin 52 rotates about an angle of about 180 ° about the axis, and the conical rotation of the temple 6 is shown. the rotation axis lines G ₁ second locking pin 52
Although shown above, in the present embodiment, in practice, both the first locking pin 51 and the second locking pin 52 are inserted into the fastening member 53 so as to be able to rotate around the axis, as described above. The ear hanging temple 6 rotates about both the first locking pin 51 and the second locking pin 52 as its rotation axis.

However, the present invention is not limited to the above embodiment, and the conical rotation of the temple 6, which is a feature of the present invention, is performed by using either the first locking pin 51 or the second locking pin 52. This can be realized if one of them is inserted into the fastening member 53 so as to freely rotate around the axis. For example, if the second locking pin 52 is inserted into the fastening member 53 so as to be able to rotate around the axis, the other first locking pin 51 may be fixed to the fastening member 53. In this case, the above-described restriction on the expansion of the temple 6 is also performed by the first locking pin 51.
The length of the second locking pin 52 that can rotate around the axis may be shortened so as not to reach the end piece 4 because it can be realized only by abutment between the end piece 4 and the temple 6. The connection conditions between the first locking pin 51 and the second locking pin 52 and the fastening member 53 can be variously selected from the viewpoint of opening / closing operability of the temple 6 or design of the eyeglass frame.

In this embodiment, a diagonal hinge is applied to "two-point glasses" in which the left and right lenses 1 and 1 are directly screwed at two places, respectively, as shown in FIG. It is also possible to apply the oblique hinge means 5 to "full rim glasses" in which a well-known rim R holding the entire circumference of the lens 1 is used as the lens holding means 2 as in the embodiment. It is of course possible to apply the oblique hinge means 5 to so-called "suspender-type half-rim glasses" in which a half rim is attached to the upper edge and the lower edge of the lens is suspended by a nylon thread or the like.

As shown in FIG. 7, a first locking pin 51 'formed at the end of the end piece 4' or a second locking pin 52 'formed at the base end of the temple 6 As long as the horizontal relationship of about 45 ° is maintained,
The conical rotation of the temple 6 can be realized. Therefore, for example, the end piece 4 'brazed to the rim R can be variously changed in shape, and the first locking pin 51' or the second locking pin 51 'can be used. It is not always necessary to form a hook that bends downward at the tip of the locking pin 52 '. Various design changes are possible in consideration of the design of the glasses.

As described above, in the eyeglass frame of the present embodiment, the temple 6 does not simply open and close in the horizontal direction as in the related art, but also moves in the vertical component direction so as to draw a conical shape. Since it is configured to be rotatable, even when an external force is applied to the spectacle frame from any direction, the inclined shaft hinge 5 disperses the external force to the entire spectacle frame without concentrating the external force on a part of the spectacle front. Thus, plastic deformation of each part of the spectacle front F including the end piece 4 is prevented.

For example, when an external force is applied to the right part of the spectacle frame from obliquely below while wearing spectacles, the temple can rotate only in the horizontal direction in the conventional product. The end part is easily distorted because the part is displaced obliquely with respect to the face, and the end piece part is liable to be twisted and deformed. In the eyeglass frame of this embodiment, the hinge means 5 on the right side can be turned obliquely. Therefore, the temple 6 is easily rotated downward with respect to the spectacle front F so that the hinge means 5 is broken by this external force, and the external force is skillfully released to the end piece 4.
This prevents the torsional stress from concentrating.

Conversely, when an external force is applied to the right side of the spectacle frame from obliquely above, in the conventional product,
Due to this external force, the right side of the frame slips obliquely with respect to the face, and the end piece is twisted and deformed. In the eyeglass frame of this embodiment, the bridge 3 And the hinge means 5 on the opposite side (left side) is mountain-folded, and the temple 6 on the left side pivots downward without difficulty, so that the external force is skillfully released to end. The concentration of torsional stress on the piece 4 is prevented.

As described above, the spectacle frame according to the present invention can avoid the concentration of stress on the end piece parts and the like by the oblique hinge, so that in the related art, the eyeglass frame must be ruggedly prepared for torsional deformation. End piece parts and the like that were not present can also be formed with a thin wire as in this embodiment. Further, in this embodiment, since a minute hinge screw is not used for the hinge means 5, the assembling work is easy and the manufacturing cost can be reduced. Therefore, a lightweight and slim eyeglass frame that is resistant to deformation due to external force and that is lightweight can be provided at low cost.

Since the temple pivoting operation by the oblique hinge means 5 is performed along a locus along the conical surface as described above, the downward pivoting operation of the temple 6 is performed as follows.
It is performed slightly obliquely toward the temporal region of the wearer. That is, when the temple 6 rotates downward, at the same time, the temple 6 lightly tightens the temporal region. Therefore, the tightening action by the rotation of the temple in the horizontal component direction reduces the likelihood of the eyeglass frame being easily detached and flying due to the application of an oblique external force as in the conventional product, and the temple as in the present embodiment. If the lens 6 itself is made of a metal wire and has an appropriate elastic force, it can be combined with the elastic force of the temple 6 to elastically return the eyeglass displacement caused by an external force to the original proper mounting position. It becomes.

Also, for example, when a spectacle frame is placed on a desk with a temple open and a certain load is applied to the spectacle frame from above, the temples of the conventional product only have a horizontal orientation. Because it could not rotate,
With the temple in the expanded state, a load is applied to the spectacle frame, so that not only the front portion of the spectacles but also the ear-hanging temple undergo large plastic deformation, and in some cases, the lens may be broken. However, in the case of the spectacle frame of the present embodiment, as described above, the temple 6 can be pivoted obliquely downward with respect to the spectacle front F, so that the spectacle front F naturally falls forward by this load, Moreover, with the front inclination of the glasses front F,
Temple 6 is closed so that it can be folded,
Almost no damage to the spectacle lens can be avoided.

[0030] Furthermore, in the spectacle frame of the present embodiment, since it is arranged on the pivot shaft lines G ₁ a substantially horizontal state of the hinge unit 5, as shown in FIG. 2, the temple 6, the temple The end 61 is folded to the spectacle front F such that the end 61 substantially describes a semicircular arc. Therefore, in the temple folded state, the temple end 61 of the temple 6 can be turned to the front side of the lens 1 with its direction reversed and along the lens 1. That is, when the temple is folded, the temple end 61 protects the front surface of the lens 1 and also prevents the front surface of the lens from being damaged.

Second Embodiment Next, a two-point type spectacle frame provided with an oblique hinge according to a second embodiment will be described with reference to FIGS. 8 and 9. FIG. The eyeglass frame of the present embodiment employs a well-known hinge part using hinge screws as the hinge means 5 of the oblique axis. Other configurations are the same as those of the first embodiment described above.
FIGS. 8 and 9 show only the inclined shaft hinge means 5.

The hinge means 5 of the present embodiment includes an end piece 4
A female frame member 54 provided at the end, a male frame member 55 formed on the base end side of the temple 6, and a hinge screw 56 for hinge-connecting the female frame member 54 and the male frame member 55. Have been. The female frame member 54 is formed integrally with the end piece 4 from a metal material.
A male frame member 55 integrally formed with the temple 6 with a metal material is fitted to the 54a via a hinge screw 56 so as to be rotatable at an angle of about 180 °.

That is, when a virtual front surface α is assumed as a substantially vertical standing plane including the spectacle front F, and a virtual temple surface β is assumed as a substantially vertical standing plane including the temple 6 in the expanded state. Hinge screw 56 is virtual
The dihedral angle between the front surface α and the virtual temple surface β
It is arranged in a substantially horizontal state on the bisecting hinge surface γ that divides equally (see FIG. 1).

As described above, in the spectacle frame of the present embodiment, the pivot axis of the hinge means 5 (ie, the hinge screw 56; the pivot axis G ₁ ) is turned down substantially horizontally , and Since it is arranged so as to form an angle of about 45 ° with the front F, as in the first embodiment, the ear hanging temple 6 is connected to the hinge means 5.
Is rotated while drawing a locus of a conical side shape having a vertex angle of about 90 ° with the vertex as the vertex, and is folded to the spectacle front F (see FIG. 8).

In the eyeglass frame of the present embodiment, the pivot of the hinge means 5 (that is, the hinge screw 56) is laid down substantially horizontally, so that the appearance of the hinge can be improved. . In other words, as shown in FIG.
Since the orientation of the frame parts of the 54 and the male frame member 55 is vertical in contrast to the horizontal direction of the conventional hinges, the frame parts horizontally arranged like the conventional hinges protrude outside the frame. It does not impair the appearance of the spectacle frame. Further, in the case of the present embodiment, not only the frame portion but also the connecting portion between the male frame member 55 and the temple 6 become vertical, so that it is less noticeable than the conventional product. Therefore, the base end side of the temple 6 may be formed in a plate shape, and a hole may be formed in the plate-shaped base end to form the male frame member 55. In this way, the manufacturing cost can be further reduced.

[0036]

As described above, in the spectacle frame having the oblique hinge according to the present invention, the pivot axis of the hinge mechanism is not in the vertical direction as in the conventional product. Since the ear temples are placed horizontally and horizontally on the inside of the spectacle frame, the ear hook temples open and close in the vertical component direction so as to draw a locus of a conical surface instead of simply opening and closing in the horizontal direction. Therefore, even if external force is applied from any direction, the hinge part rotates vertically, and this external force can be dispersed throughout the eyeglass frame without being concentrated on the eyeglass front parts such as end pieces. As described above, it is not necessary to increase the size of each part of the spectacles in order to prevent plastic deformation due to external force, and it is possible to provide a spectacle frame that is lightweight, slim, and extremely resistant to deformation.

If necessary, the temple end can be easily brought to the front of the spectacle lens when the temple is folded, so that the spectacle lens can be protected by this temple end portion. It can also prevent scratching.

[Brief description of the drawings]

FIG. 1 shows a rotation axis of a bevel hinge according to the present invention and eyeglass flow.
FIG. 3 is a schematic perspective view showing an angular relationship with a point.

FIG. 2 is a schematic perspective view showing the entire eyeglass frame of the first embodiment according to the present invention.

FIG. 3 is a schematic perspective view showing a state where a temple of the eyeglass frame is folded.

FIG. 4 is a plan view of an essential part showing a configuration of an oblique hinge of the eyeglass frame.

FIG. 5 is a main part side view showing the configuration of the oblique hinge of the eyeglass frame.

FIG. 6 is a main part plan view showing a state where the temple of the eyeglass frame is folded.

FIG. 7 is a plan view of a main part showing a configuration of an oblique hinge of full-rim spectacles according to a modified example of the present invention.

FIG. 8 is a plan view of a main part showing the configuration of the oblique hinge of the spectacle frame according to the second embodiment of the present invention.

FIG. 9 is an essential part perspective view showing a state where a diagonal hinge of the eyeglass frame is disassembled.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens 2 Lens holding means 3 Bridge 4 End piece 5 Hinge means 51 First locking pin 52 Second locking pin 53 Fastening member 6 Temple F Glasses front α Virtual front surface β Virtual temple surface γ Halving surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) G02C 1/00-1/08 G02C 5/22

Claims (3)

(57) [Claims] An eyeglass frame in which a pivot axis of a hinge means for rotatably hinge-connecting an ear temple to a spectacle front is disposed substantially horizontally. 1.1, left and right lens holding means 2 for holding these lenses 1 and 1 respectively; a bridge 3 for connecting these lens holding means 2 in parallel symmetrically;・ Eyeglass front F composed of end pieces 4.4 arranged on both outer sides of 2
When the virtual front surface α is assumed as an upright plane including: The temple 6 in which the virtual temple surface β is hingedly connected to the end of the end piece 4 via the hinge means 5 when the eyeglasses are used. Assuming that the upright plane includes the temple 6, the pivot axis of the hinge means 5 is the same as the virtual front surface α.
Bisecting the dihedral angle formed by the virtual temple plane β
An eyeglass frame provided with an oblique hinge, which is disposed substantially horizontally on a hinge surface γ . 2. A hinge means 5 for rotatably hinge-connecting the ear-hanging temple 6 to the spectacle front F is provided on a first locking pin 51 formed at an end of the end piece 4 and on a proximal end side of the temple 6. The formed second locking pins 52 and these first locking pins 51
Fastening member that connects the second locking pin 52 and the second locking pin 52 so as to be relatively rotatable.
The fastening member 53 has a pair of connecting holes 53a and 53a, and the connecting holes 53a and 53a have the first locking pin 51 and the second locking pin 52 respectively. Are inserted so that at least one of them is freely rotatable around the axis, and when the temple 6 is expanded in the eyeglass use state, the first locking pin
2. The oblique shaft according to claim 1, wherein the first and second locking pins 51 and 52 abut against the temple 6, respectively, so that the rotation of the temple 6 is restricted to a required range. Eyeglass frame with hinge. 3. The fixing member according to claim 2, wherein the fastening member for connecting the first locking pin and the second locking pin so as to be relatively rotatable is formed of a synthetic resin material. Eyeglass frame with oblique hinge.