JPS6215792Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to eyeglass frames.

As shown in Fig. 1, a conventional eyeglass frame 1 has a lens frame 2 with an integral end piece 3 at both ends, and one hinge piece 5 which is integrally attached to this by brazing or the like. , at one end of Temple 4,
The other hinge piece 6, which is similarly attached integrally, is connected to rotate around a hinge shaft 7.

After such a glasses frame is used for a long period of time, the contact point P between the endpiece and the temple end gets old and the temple 4 expands outward as shown by reference numeral 4a, causing the glasses to fit around the face. It becomes easy to fall off. Also, even if your glasses are new and fit well, if strong lateral forces are applied to them during sports, etc.
At the contact point P, the temple 4 compresses the endpiece 3 or the lens frame 2 integrated therewith, and is in a state where it is easy to damage them.

Other prior art that solves this problem is
−11509. This prior art has a structure in which the temple is elastically attached to the eyeglass frame using a compression spring, thereby solving the above-mentioned problem.

A new problem with this prior art is that the spring must be kept compressed while the screw is installed.
Therefore, the number of man-hours is extremely complicated, and productivity is poor.

An object of the present invention is to provide a temple mounting structure with excellent productivity.

In the present invention, the first hinge piece 8 is fixed to the end of the endpiece 3 that is integrally formed at both ends of the lens frame 2.
It has a right cylindrical storage space 20 extending in the longitudinal direction, and this storage space 20 has an open part 24 formed along the longitudinal direction, and the width l1 of this open part 24 is as follows:
The storage space 20 is smaller than the diameter of the storage space 20 and opens at one end in the longitudinal direction, and a screw hole 23 having an axis substantially colinear with the axis of the storage space 20 is provided at the other end in the longitudinal direction. A hinge hole 22 is formed at one end of the case 10 and a flat plate-shaped part having a thickness l2, a recess 11 is formed at the side, and approximately two ends are formed at both ends of the recess 11. The locking projections 12 and 13 each having a cylindrical shape are provided, and the locking projections 12 and 13 are located within the storage space 20, and the plate-shaped portion partially projects outward from the opening portion 24.
The hinge piece 9 is disposed in the recess 11 in the storage space 20, and one end 14a is connected to the other locking protrusion 12 of the one locking protrusion 13.
a coiled spring 14 that abuts on a surface facing the one-side locking projection 13; and a cylindrical spring receiver disposed in the recess 11 in the storage space 20 and abuts on a surface of the second locking projection 12 facing the one-side locking projection 13. 15a, which is disposed in the recess 11 within the storage space 20, is integrally attached to the spring receiver 15a, and is attached to the spring receiver 15a.
, and is inserted into the other end of the spring 14 so that the other end of the spring 14 is connected to the spring receiver 15
A cylindrical guide protrusion 15b abuts on the hinge shaft 7, which is inserted through the hinge hole 22 of the second hinge piece 9 and supports the first hinge piece 8 and the second hinge piece 9 in an angularly displaceable manner. and when the diameter of the locking protrusions 12 and 13 is l3,
This temple mounting structure is characterized in that l2≦l1<l3, and the outer spring of the protruding portion 21a formed on the temple 4 is screwed into the screw hole 23 of the case 10.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a partial perspective view of an embodiment of the present invention. The first hinge piece 8 is attached to the end of the endpiece 3. What is installed here means that
This is no different from what I said about the conventional product earlier.
That is, they are generally integrated by bonding means such as brazing or adhesive. In Temple 4,
A case 10 that houses the second hinge piece 9 is fixed.

Figure 3 is an enlarged plan view of the hinge part, and Figure 4 is an enlarged plan view of the hinge part.
The figure is a front view of FIG. 3, FIG. 5 is a sectional view taken along the section line V--V of FIG. 4, and FIG. 6 is an exploded perspective view of the hinge portion. The first hinge piece 8 and the second hinge piece 9 are rotatably connected by the hinge shaft 7 at the semicircular arc-shaped head 9a of the second hinge piece 9. As shown in FIGS. 5 and 6, a recess 11 is formed in the second hinge piece 9, and cylindrical locking protrusions 12 and 13 are provided at both ends of the recess 11. ing. Second hinge piece 9
A hinge hole 22 through which the hinge shaft 7 is inserted is bored in the head 9a. Recess 1 of second hinge piece 9
1 includes a spring 14 and one end 14a of the spring 14.
A cylindrical spring receiver 15a for locking is interposed. This spring receiver 15a has a spring receiver 15
A cylindrical spring guide protrusion 15b having a diameter smaller than the diameter of a is integrally attached.

The case 10 for storing the second hinge piece 9 is
As shown in FIGS. 6 and 7, it has a storage space 20 having a substantially cylindrical shape, and an opening 24 is formed on the side surface of the storage space 20 by a retaining protrusion 10a.

The width l1 of this open portion 24 is the thickness of the second hinge piece 9.
It is selected to be equal to or larger than l2, and smaller than the diameter l3 of the locking protrusions 12, 13 (l2≦l1<l3).

When storing the second hinge piece 9 in the case 10, first insert the spring receiver 15a in the recess 11, fit the spring 14 around the spring guide protrusion 15b, and then insert the spring 14 into the spring receiver 15a. and locking protrusion 1
3 and make contact between them. Next, the second hinge piece 9 with the spring receiver 15a and the spring 14 interposed in this way
is inserted into the storage space 20 of the case 10 from the insertion opening 25 of the case 10. A bolt through hole 16 is bored at the base of the case 10, and a spring receiver 1
5a is also provided with a bolt through hole 17, and furthermore, a screw hole 18 is provided in the lower portion of the case 10 at a position opposite to the bolt through hole 16. Bolt 1 is inserted into bolt through holes 16, 17 and screw hole 18.
By inserting and screwing together the spring receiver 1
5a and the case 10 are fixed together. In this way, the second hinge piece 9 is housed in the case 10 with a portion of the second hinge piece 9 protruding outward from the open portion 24 of the case 10.

At the end of the case 10 opposite to the insertion port 25,
Temple 4 is fixed. A screw hole 23 penetrating toward the storage space 20 of the case 10 is provided at the end of the case 10 . A temple core 21 is integrally inserted into the temple 4. A portion of the temple core 21 protrudes from the temple 4, and this protruding portion 21a is threaded with an external thread. The temple 4 is connected to the screw hole 23 of the case 10.
It is fixed to the case 10 by screwing the protruding portion 21a of the temple core 21 onto the temple core 21.

The spring 14 inserted in the recess 11 is in contact between the spring receiver 15a and the locking protrusion 13, and will not fall out of the recess 11. Therefore, the horizontal direction between the case 10 and the second hinge piece 9 (Figs. 3 to 5)
Displacement in the horizontal direction (in the figure) is prevented. Also, the direction in which the second hinge piece 9 rotates around the hinge shaft 7 (the seventh
(left and right direction in the figure), the locking protrusions 12, 13
hits the retaining protrusion 10a, so the second hinge piece 9
does not fall off from the case 10, and the second hinge piece 9 and the case 10 are held constant.

8 is a plan view showing a state in which an expanding force is applied to the hinge portion of FIG. 3, and FIG. 9 is a sectional view of FIG. 8. In the spectacle frame 1 according to the present invention configured as described above, the state shown in FIGS. 8 and 9 changes from the normal state shown in FIGS. 3 to 5 as described above due to aging or external pressure. When the temple 4 is expanded, the second hinge piece 9 is rotated counterclockwise around the hinge shaft 7, that is, it slides within the storage space 20 of the case 10. Thereby, the locking protrusion 12 is separated from the spring receiver 15a,
One of the locking protrusions 13 compresses the spring 14 in the recess 11, but the elastic force of the spring 14 immediately causes the third locking protrusion to compress.
It can be restored to the state shown in Figs. Therefore, the temples 4 of the eyeglass frame 1 fit tightly against the sides of the face and do not fall off.

As described above, according to the present invention, since the second hinge piece is slidably provided inside the case via a spring, the temple does not expand even after long-term use, and it fits well to the face. It will not fall off. Furthermore, even if a strong force is applied in the lateral direction, the force is reduced by the spring force, making it difficult to damage the endpiece or lens frame.

Further, according to the present invention, the coiled spring 14, the spring receiver 15a, and the guide protrusion 15b are arranged between the locking protrusions 12 and 13 in the recess 11 of the second hinge piece 9, and are arranged in the storage space of the case 10. 20. Therefore, during assembly, coil spring 1
There is no need to perform the work against the spring force of 4, which simplifies the man-hours and improves productivity. Such an excellent structure of the present invention cannot be achieved by the above-mentioned prior art.

Furthermore, in the present invention, the second hinge piece 9 partially protrudes from the storage space 20 of the case 10, thereby preventing mutual angular displacement between the temple 4 and the second hinge piece 9, Temple 4 to glasses frame 2
It becomes possible to accurately attach and hold the endpiece 3.

[Brief explanation of the drawing]

Figure 1 is a partial perspective view of a conventional eyeglass frame;
The figure is a partial perspective view of one embodiment of the present invention, Figure 3 is an enlarged plan view of the hinge part, Figure 4 is a front view of Figure 3, and Figure 5 is taken from the section line V-V in Figure 4. 6 is an exploded perspective view of the hinge portion, FIG. 7 is a sectional view taken from the cutting plane line in FIG. 4, and FIG.
This figure is a plan view showing a state in which an expanding force is applied to the hinge portion of FIG. 3, and FIG. 9 is a sectional view of FIG. 8. 1... Glasses frame, 2... Lens frame, 3... Endpiece, 4... Temple, 7... Hinge shaft, 8... First
Hinge piece, 9...Second hinge piece, 10...Case, 1
1... recess, 14... spring.

Claims (1)

[Claims for Utility Model Registration] The lens frame 2 includes a first hinge piece 8 fixed to the ends of the end pieces 3 integrally formed at both ends of the lens frame 2, and a right cylindrical storage space 20 extending in the longitudinal direction. , this storage space 20 has an open part 24 formed along the longitudinal direction, and the width l1 of this open part 24 is:
The storage space 20 is smaller than the diameter of the storage space 20 and opens at one end in the longitudinal direction, and a screw hole 23 having an axis substantially colinear with the axis of the storage space 20 is provided at the other end in the longitudinal direction. A hinge hole 22 is formed at one end of the case 10 and a flat plate-shaped part having a thickness l2, a recess 11 is formed at the side, and approximately two ends are formed at both ends of the recess 11. The locking projections 12 and 13 each having a cylindrical shape are provided, and the locking projections 12 and 13 are located within the storage space 20, and the plate-shaped portion partially projects outward from the opening portion 24.
The hinge piece 9 is disposed in the recess 11 in the storage space 20, and one end 14a is connected to the other locking protrusion 12 of the one locking protrusion 13.
a coiled spring 14 that abuts on a surface facing the one-side locking projection 13; and a cylindrical spring receiver disposed in the recess 11 in the storage space 20 and abuts on a surface of the second locking projection 12 facing the one-side locking projection 13. 15a, which is disposed in the recess 11 within the storage space 20, is integrally attached to the spring receiver 15a, and is attached to the spring receiver 15a.
, and is inserted into the other end of the spring 14 so that the other end of the spring 14 is connected to the spring receiver 15
A cylindrical guide protrusion 15b abuts on the hinge shaft 7, which is inserted through the hinge hole 22 of the second hinge piece 9 and supports the first hinge piece 8 and the second hinge piece 9 in an angularly displaceable manner. and when the diameter of the locking protrusions 12 and 13 is l3,
The temple mounting structure is characterized in that l2≦l1<l3, and an external thread of a protruding portion 21a formed on the temple 4 is screwed into a screw hole 23 of the case 10.