JPH10288760A - Spectacles and spectacle constitution unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain spectacles which allow simple lens exchange work and are simple in constitution. SOLUTION: A lens part 10 is provided with a pair of lenses 11, 12. This lens part 10 is freely attachably and detachably mounted at a frame part 20. The lens part 10 is fixed to the frame part 20 by a fixing member 30. At the time of exchanging the lens part 10, the fixing member 30 is removed from the frame part 20 and, thereafter, the lens part 10 is fitted into the frame part 30 and first and second connecting members 27, 28 are fitted respectively to the top and bottom of the bridge part 15. The fixing member 30 is mounted from below and the bridge part 15 and first and second connecting members 27, 28 are fixed. The bridge part 15 and the first and second connecting members 27, 28 are inserted from the inlet part of the slit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to spectacles having interchangeable lenses.

[0002]

2. Description of the Related Art Conventionally, eyeglasses in which a lens is fitted in a pair of annular rims are known. To replace the lens in such glasses, the rim is opened by turning a screw fixing the rim, the lens is removed, a new lens is fitted into the rim, and the screw is tightened. That is, the lenses are replaced one by one.

[0003]

Therefore, in the conventional eyeglasses, there is a problem that the operation of exchanging the lens is complicated, and each rim is provided with a screw to make it replaceable, so that the structure is complicated. .

According to the present invention, the lens replacement operation is simple,
It is another object of the present invention to provide spectacles having a simple configuration and a spectacle unit constituting a part of the spectacles.

[0005]

According to the present invention, a pair of annular inner rims, to which outer peripheral edges of lenses can be fitted, are connected by a bridge between the pair of annular inner rims. A pair of upper outer rims whose upper edges are respectively engaged are connected by a first connecting member, and a pair of lower outer rims whose lower edges of the inner rim are respectively engaged are connected by a second connecting member. And a fixing member for integrally fixing the bridge portion and the first and second connecting members.

The fixing member fixes the bridge portion and the first and second connecting members such that the first and second connecting members are located at the upper and lower ends of the bridge portion, respectively.

[0007] Preferably, the bridge portion includes a connecting portion connecting the upper portions of the pair of inner rims, and projections provided respectively on the lower portions of the pair of inner rims, and these projecting portions are connected to the connecting portion by fixing means. It is fixed. The protrusions may be fixed to both ends of the connecting portion, respectively, and the center end of the connecting portion may protrude from between the protrusions. In this case, it is preferable that a groove in which the second connecting member is engaged is formed at the tip of the connecting portion.

Usually, temples are provided at both ends of the frame portion. It is preferable that an engagement groove is formed on each of the inner peripheral surfaces of the upper outer rim and the lower outer rim, and a convex surface that engages with the engagement groove is formed on the outer peripheral surface of the inner rim.

The fixing member includes a bridge portion, first and second members.
And a nose pad fixed to the holding member. In this case, the holding member may have a slit for holding the bridge portion and the first and second connecting members, and the entrance of the slit may be configured to expand outward.

The first eyeglass constituent unit according to the present invention comprises:
A lens, a pair of annular inner rims to which outer peripheral edges of the lens can be fitted, and a bridge portion connecting between the inner rims, and engaging the upper and lower surfaces of the bridge portion with the frame portion It is characterized in that each possible engagement groove is formed.

A second eyeglass constituent unit according to the present invention comprises:
A pair of upper outer rims each of which engages an upper edge of the inner rim of the lens portion, a first connecting member connecting these upper outer rims, and a pair of lower outer rims each of which engages a lower edge of the inner rim And a second connecting these lower outer rims
And a fixing member for integrally fixing the bridge portion formed on the lens portion and the first and second connecting members.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows spectacles according to an embodiment of the present invention and spectacle constituent units constituting the spectacles.

The spectacles include a lens section 10 having a pair of lenses 11 and 12, a frame section 20 to which the lens section 10 is detachably attached, and a fixing member 30 for fixing the lens section 10 to the frame section 20. And Temples 21 and 22 are foldably attached to both ends of the frame portion 20, respectively.

The frame of the lens portion 10 is made of metal, and has a pair of annular inner rims 13 and 14 to which outer peripheral edges of the lenses 11 and 12 can be fitted, respectively. Have been. As shown in FIG. 2, the bridge portion 15 includes a connecting portion 16 that connects the upper portions of the inner rims 13 and 14, and protrusions 17 and 18 that are provided at portions near the connecting portion 16 of the inner rims 13 and 14. Having. These projections 17 and 18 are fixed to both ends of the connecting portion 16 by screws 41 and 42, respectively. The receiving portion 19 formed at the center of the connecting portion 16 has projections 17 and 18.
And an engagement groove 19 a is formed at the tip of the receiving portion 19.

The frame portion 20 includes a pair of upper outer rims 2.
3 and 24 and a pair of lower outer rims 25 and 26. The upper edges of the inner rims 13 and 14 of the lens unit 10 are engaged with the upper outer rims 23 and 24, and the lower edges of the inner rims 13 and 14 are engaged with the lower outer rims 25 and 26, respectively. The upper outer rims 23 and 24 are connected to the first connecting member 2.
7 and the lower outer rims 25 and 26 are connected by a second connecting member 28. The upper outer rim 23 and the lower outer rim 25 have a shape along the outer peripheral edge of the lens 11, and the upper outer rim 24 and the lower outer rim 26
2 along the outer peripheral edge. That is, the first
And the second connecting members 27 and 28 are provided close to each other,
They are substantially parallel to each other.

The upper outer rims 23 and 24 are made of synthetic resin, and the lower outer rims 25 and 26 and the first and second connecting members 27 and 28 are metal wire members. The first connecting member 27 is connected to the lower outer rims 25 and 26 via metal wire members provided inside the upper outer rims 23 and 24.
May be connected.

The bridge 15 and the first and second connecting members 27 and 28 are fixed by a fixing member 30. FIG.
As shown in the figure, the fixing member 30 is provided with a holding member 31 for holding the bridge portion 15, the first and second connecting members 27 and 28.
A nose pad 32 fixed to the holding member 31;
33. The holding member 31 has a slit 34 for holding the bridge portion 15 and the first and second connecting members 27 and 28, and an entrance 34a of the slit 34 is expanded outward.

The bridge portion 15 and the first and second connecting members 27 and 28 are arranged such that the first and second connecting members 27 and 28 are located at the upper and lower ends of the bridge portion 15 in the slit 34, respectively. , And are integrally fixed by the fixing member 30. As described above, the engaging groove 19 a is formed in the receiving portion 19, and the similar engaging groove 15 a is also formed on the upper surface of the bridge portion 15. The cross-sectional shapes of these engagement grooves 15a and 19a are respectively the first and second sections.
Has a circular arc shape that matches the outer peripheral shape of the connecting members 27 and 28. In FIG. 3, the inner wall surface of the slit 34 is separated from the outer surfaces of the bridge portion 15 and the first and second connecting members 27 and 28, but actually adheres to each other.

FIG. 4 shows an engagement structure between the lens unit 10 and the frame unit 20. As shown in this figure, engagement grooves 25a are formed on the inner peripheral surface of the lower outer rim 25 of the frame portion 20, respectively. Similarly, the lower outer rim 26
And engagement grooves (not shown) in the upper outer rims 23 and 24
Are formed. On the other hand, on the outer peripheral surface of the inner rim 13 of the lens portion 10, a convex surface 13a that engages with the engaging groove 25a is formed, and similarly, the inner rim 14 also has a convex surface.

Therefore, in order to replace the lens unit 10, after the fixing member 30 is detached from the frame unit 20, a new lens unit is fitted into the frame unit 30, and the first and second lens units are disposed above and below the bridge unit 15, respectively. Connecting member 27,
Adjust 28. Then, the fixing member 30 is attached from below, and the bridge portion 15, the first and second connecting members 27,
28 may be fixed. Since the entrance portion 34a of the slit 34 is expanded, the bridge portion 15, the first and second connecting members 27 and 28 are smoothly inserted into the slit 34, and therefore, the replacement operation of the lens portion 20 is easy. .

[0021]

As described above, according to the present invention, eyeglasses whose lens exchange work is simple and whose structure is simple can be obtained.

[Brief description of the drawings]

FIG. 1 shows the structure of eyeglasses according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a bridge unit.

FIG. 3 is a cross-sectional view showing a bridge portion and cut along a plane perpendicular to a longitudinal direction of a connecting portion.

FIG. 4 is a cross-sectional view illustrating an engagement structure between a frame portion and a lens portion, which is cut along a plane passing through an optical axis of the lens.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lens part 11, 12 Lens 13, 14 Inner rim 15 Bridge part 20 Frame part 23, 24 Upper outer rim 25, 26 Lower outer rim 27 First connecting member 28 Second connecting member 30 Fixing member

Claims (11)

[Claims] 1. A lens portion formed by connecting a pair of annular inner rims to which outer peripheral edges of a lens can be fitted, respectively, by a bridge portion, and a pair of upper portions with which upper edges of the inner rim engage respectively. A frame portion formed by connecting an outer rim by a first connecting member and connecting a pair of lower outer rims, each of which engages a lower edge of the inner rim, by a second connecting member; A pair of eyeglasses, comprising: a fixing member for integrally fixing the first and second connecting members. 2. The fixing member fixes the bridge portion and the first and second connection members such that the first and second connection members are respectively located at upper and lower ends of the bridge portion. The glasses according to claim 1, wherein 3. The bridge portion includes a connecting portion that connects upper portions of the pair of inner rims, and a protrusion provided at a portion of the pair of inner rims adjacent to the connecting portion. The eyeglasses according to claim 1, wherein the protrusion is fixed to the connecting portion by a fixing unit. 4. The spectacles according to claim 3, wherein the protrusions are fixed to both ends of the connecting portion, respectively, and a center end of the connecting portion protrudes from between the protrusions. 5. The spectacles according to claim 4, wherein a groove for engaging the second connecting member is formed at a center end of the connecting portion. 6. The glasses according to claim 1, wherein temples are provided at both ends of the frame portion. 7. An engagement groove is formed on an inner peripheral surface of each of the upper outer rim and the lower outer rim, and a convex surface that engages with the engagement groove is formed on an outer peripheral surface of the inner rim. The eyeglasses according to claim 1, wherein: 8. The fixing device according to claim 1, wherein the fixing member includes a holding member for holding the bridge portion, the first and second connecting members, and a nose pad fixed to the holding member. The eyeglasses described in. 9. The device according to claim 9, wherein the holding member has a slit for holding the bridge portion and the first and second connecting members, and an entrance portion of the slit expands outward. The eyeglasses according to claim 8, wherein 10. An eyeglass constituent unit which is interchangeably mounted in a frame portion, wherein a lens, a pair of annular inner rims to which outer peripheral edges of the lens can be fitted, and a connection between the inner rims. The eyeglass component unit, comprising: a bridge portion that engages with the frame portion; and engagement grooves that can be engaged with the frame portion are formed on upper and lower surfaces of the bridge portion, respectively. 11. A spectacle unit to which a lens unit having a lens is interchangeably attached, comprising: a pair of upper outer rims each of which engages an upper edge of an inner rim of the lens unit; A frame portion comprising: a first connecting member to be connected; a pair of lower outer rims each of which engages a lower edge of the inner rim; and a second connecting member connecting the lower outer rims; And a fixing member for fixing the first and second connecting members integrally with each other.