JP2003279901A - Hinge structure for spectacles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that it takes time and labor for the assembly of a hinge and the screw of the hinge is often loosened as it is used. <P>SOLUTION: A hinge part 4 comprises: an annular connection part 4a formed at the connection part of a side bracket 3; a slit 4b for turning formed on the peripheral surface of the connection part 4a; an interpolation member 4c formed at the connection part of a temple 5; and a pivoting member 4d for freely turnably pivoting the interpolation member 4c. The interpolation member 4c is a partially notched C-shaped elastic contraction/expansion part and is fitted inside the connection part 4a in a falling stop state by being forcibly fitted (diameter-reduced) inside the slit 4b for turning and enlarging a diameter inside the connection part 4a. The pivoting member 4d is formed of a large diameter part 4d<SB>1</SB>falling-stopped on the upper surface of the connection part 4a and a shaft center part 4d<SB>2</SB>inserted inside the connection part 4a for freely turnably pivoting the interpolation member 4c and supports the interpolation member 4c so as not to shift an axis accompanying the turning operation of the temple 5. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the hinge structure of spectacles, and more particularly, it enables the wisdom and temples to be easily and firmly fixed to each other without screwing, and has been used for many years. The present invention also relates to a useful hinge structure for eyeglasses in which the hinge is free from backlash.

[0002]

2. Description of the Related Art Conventionally, as a hinge structure for such glasses,
For example, the one disclosed in JP 2001-290109 A is well known as a conventional example. As shown in FIG. 11, the hinge structure in this conventional example allows the first rotating member 7 and the second rotating member 8 to be fitted to each other and to be rotatable by screws (not shown). It is a hinge called "two pieces of sesame" that is connected. The hinge of the "two-piece sesame" has a protruding wall that forms a first rotating member 7 having a male portion 7a and a guide groove 8a having a U-shaped cross section that is fitted into the first rotating member 7. 8b, 8
The second rotating member 8 has male portions 8c provided on both sides of the b. A screw (not shown) is used as a fulcrum at this connecting portion.

[0003]

However, in the hinge structure of the conventional eyeglasses described above, the first rotating member 7 and the second rotating member 8 must be fitted to each other and screwed together. There is a problem that it takes time and labor to assemble because it does not occur, and in other words, the screw may loosen as the temple is repeatedly rotated while it is in use. Not a little, it is a factor that rattles the hinge.

Moreover, since the temple is supported in a cantilevered state, its bending moment acts in a hinged manner, and the sliding surfaces of the first rotating member 7 and the second rotating member 8 are worn away. As a result, backlash is generated in the hinges at an early stage, and such a phenomenon is a common problem that occurs in all hinges of "two pieces of sesame". In particular, hinges made of titanium material, which have been widely used in recent years, suffer from such wear, and the hinges and temples are loosened in a relatively short time.

The present invention has been made in view of the above problems, and the wisdom and the temple can be easily and firmly fixed to each other without screwing, and even if it is used for many years, the hinge is loosely attached. It is an object of the present invention to provide a useful eyeglass hinge structure that does not cause

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems and to achieve the intended purpose, the constitution which is the gist of the present invention is for eyeglasses in which a wisdom and a temple are rotatably connected. In the hinge structure, the wisdom and / or temple is
The present invention resides in a hinge structure of eyeglasses including a connecting portion formed in an annular shape and an insertion member rotatably connected to the connecting portion.

Further, the wisdom includes an annular connecting portion and a rotating slit formed on the peripheral surface of the connecting portion, and the temple is press-fitted into the rotating slit to provide the wisdom. It is preferable to include an insertion member whose diameter is expanded in the connecting portion.

Further, the tip has an annular connecting portion and an interposing member inserted into the connecting portion, and the outer peripheral surface of the interposing member is gradually tapered toward the top. , It is better that the central hole becomes thinner toward the bottom.

Further, it is preferable that the temple includes a shaft support member that is press-fitted or screwed to expand the center hole of the insertion member.

In the hinge structure of the eyeglasses of the present invention configured as described above, the wisdom and / or temple is a connecting portion formed in an annular shape, and an insertion member rotatably connected to the connecting portion. By including the above, both members can be rotatably retained by a simple operation of inserting the insertion member into the connecting member.

Further, the wisdom is provided with a connecting portion formed in an annular shape and a rotating slit formed on the peripheral surface of the connecting portion, and the temple is press-fitted into the rotating slit to provide the wisdom. By including the insertion member whose diameter is expanded in the connecting portion of the connection member, the wisdom and the temple can be connected in the retaining state by a simple operation of simply inserting the insertion member into the rotation slit. Therefore, there is no need for screw fastening as in the past.

Further, the tip includes an annular connecting portion and an inserting member inserted into the connecting portion, and the outer peripheral surface of the inserting member is gradually tapered toward the top. , The central hole is gradually narrowed toward the bottom, and
The temple is provided with a shaft support member that is press-fitted or screwed to expand the center hole of the insertion member, so that the shaft support member is inserted into the upper end opening of the connecting portion of the tooth and inserted from the lower end opening. Just by forcibly inserting it into the central hole of the inserted member,
The diameter of the reversely tapered central hole can be expanded to prevent the coaxial support member from slipping out into the connecting hole.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment of the hinge structure for eyeglasses according to the present invention will be described with reference to FIGS.
In the figure, A is eyeglasses adopting the hinge structure of the present invention. As shown in FIG.
1 and a bridge 2 for connecting the spectacle lenses 1, 1.
And a temple 5 connected to the wisdom 3 via the hinge portion 4.

The spectacle lens 1 is made of an appropriate material such as plastic or glass, and a bridge 2 is installed at a predetermined position through a connecting hole (not shown).

The bridge 2 is, for example, a spectacle lens 1
Is coupled to a connecting hole (not shown) formed so as to be gradually narrowed toward the surface of the sheet through a resin bush (not shown) made of synthetic resin, etc.

As shown in FIGS. 3 to 4, the hinge portion 4 has an annular connecting portion 4a formed at the connecting portion of the tooth 3 and a rotation slit 4b formed on the peripheral surface of the connecting portion 4a. An insert member 4c formed at the connecting portion of the temple 5 and a shaft support member 4d for pivotally rotatably attaching the insert member 4c.

The connecting portion 4a is a hollow ring-shaped body having open upper and lower ends, and a rotating slit 4b is formed on the outer peripheral surface thereof. As shown in FIG. 4, the slit 4b is formed in the horizontal direction so as to communicate with the inside of the connecting portion 4a, and determines the rotation range of the temple 5.

The insertion member 4c is a C-shaped elastic expansion / contraction part that is cut away so that the diameter can be reduced / expanded, and the insertion part 4c is press-fitted (reduced in diameter) into the rotation slit 4b. By expanding the diameter in 4a, it is fitted in the connecting portion 4a in a retaining state.

In other words, the size (diameter) of the insertion member 4c.
Is formed to be larger than the length (slit width) of the slit 4b for rotation, the insertion member 4c is reduced in diameter by pressing into the slit 4b (deforms itself) and penetrates the slit 4b. Immediately after that, the insertion member 4c is restored to the original size and cannot be removed from the slit 4b.

On the other hand, the shaft supporting member 4d is the upper surface of the connecting portion 4a.
Large diameter part 4d₁  And insert it in the connecting part 4a.
A shaft center portion that is attached to rotatably support the insertion member 4c.
4d _Two  It is formed from and, and the turning operation of the temple 5
With this, the insertion member 4c is supported so as not to be misaligned.
Of.

The hinge structure of the spectacles of the present embodiment constructed in this way is simply operated by simply press-fitting the insert member 4c of the temple 5 into the slit 4b for rotation in order to reduce the diameter of the insert member 4a. Since the diameter of the insertion member 4c is expanded to its original state (by elastic force) and is prevented from coming off in the connecting portion 4a, the wisdom 3 and the temple 5 are simply and firmly fixed. No need to tighten any screws.

The shaft supporting member 4d is not always necessary, and as shown in FIG. 5, it may be rotatably retained in the connecting portion 4a only by the elastic force of the inserting member 4c.

Next, the second part of the hinge structure of the eyeglasses according to the present invention.
An embodiment will be described with reference to FIGS. In order to facilitate understanding, the same parts as those in the above-described first embodiment are designated by the same reference numerals, and only different parts will be described below with new numbers.

The hinge portion 6 in the figure has a shaft support member 6a depending on the connecting portion 5a of the temple 5, an annular connecting portion 6b formed at the connecting portion of the tooth 3, and the circumference of the connecting portion 6b. It is composed of a rotation slit 6c formed on the surface, and an insertion member 6d that is inserted into the connecting portion 6b to rotatably prevent the shaft support member 6a from coming off.

[0025] the insertion member 6d is made of synthetic resin bush, as shown in FIGS. 9 10, the outer peripheral surface 6d ₁ is tapers toward the top, is gradually narrowed toward the bottom center hole 6d ₂ Is formed (inverted taper hole).

In the hinge structure of the eyeglasses of this embodiment constructed as described above, as shown in FIG. 10, the shaft supporting member 6a of the temple 5 is inserted from the upper end opening of the connecting portion 6b and the lower end opening thereof is inserted. By simply press-fitting the insertion member 6d, the shaft support member 6a and the insertion member 6d are rotatably retained within the connecting portion 6b.

In other words, the shaft support member 6a projecting from the temple 5 can be forcibly pressed into the insertion member 6d in the connecting portion 6b from the upper end side of the connecting portion 6b. since the central hole 6d ₂ inversely tapered in same insertion member 6d is pressed to the connecting portion 6b diameter, simple and robust and Ji 3 and temples 5 without the use of conventional such screws whatsoever It can be connected to the retainer.

Moreover, since the insertion member 6d can obtain a strong fastening force (removal force) by the forced expansion force of the shaft support member 6a, the so-called backlash force of the hinge is guaranteed, and Temple 5 does not fall out unexpectedly.

It should be noted that the present invention is not limited to these examples, and the design can be changed freely within the scope of the object of the present invention, and the present invention includes all of them.

In this embodiment, only so-called rimless spectacles are described, but it is needless to say that the present invention is not limited to this and can be used for cell frames, metal frames, nyrolls and other spectacles. Absent.

[0031]

In the hinge structure of the eyeglasses according to the present invention, the shaft support member can be fixed in the retaining state by a simple operation of simply inserting the shaft support member into the inserting member, so that the conventional screw is used. It has the effect that it can be assembled easily and firmly, such as the fact that no fastening is required at all, and the adverse effect of loosening the hinge against the intention (with looseness of the hinge) can be eliminated.

Further, the wisdom is provided with a connecting portion formed in an annular shape and a rotating slit formed on a peripheral surface of the connecting portion, and the temple is press-fitted into the rotating slit so that the wisdom can be improved. By providing the insertion member whose diameter is expanded in the connecting portion of the device, the wisdom and the temple can be fixed in the retaining state by a simple operation of inserting the insertion member into the rotation slit. , It is not necessary to use screws as in the past.

Further, the wisdom comprises an annular connecting portion and an inserting member inserted into the connecting portion, and the outer peripheral surface of the inserting member is gradually tapered toward the top. , The central hole is gradually narrowed toward the bottom, and
The temple is provided with a shaft support member that is press-fitted or screwed to expand the center hole of the insertion member, so that the shaft support member is inserted into the upper end opening of the connecting portion of the tooth and inserted from the lower end opening. Just by forcibly inserting it into the central hole of the inserted member,
The inverse tapered central hole is expanded in diameter to prevent the coaxial support member from slipping out into the connecting hole, and the frictional force between the coaxial supporting members is increased, so that the bracing force can be maintained and guaranteed permanently. It has the effect of being able to.

As described above, the hinge structure of the eyeglasses according to the present invention allows the temples to be connected very easily and firmly without using any conventional screws. Since there is no problem of rattling, and because the configuration is simple, it is suitable for mass production and can be supplied to users as a low price, and the practical value of practicing the present invention is great. is there.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of eyeglasses having a hinge structure for eyeglasses according to the present invention.

FIG. 2 is a plan view showing a main part of the hinge structure.

FIG. 3 is a vertical cross-sectional view showing a main part of the hinge structure.

FIG. 4 is an assembly exploded perspective view of the hinge structure.

FIG. 5 is an exploded perspective view of the same hinge structure that does not require a shaft support member.

FIG. 6 is a perspective view showing a second embodiment of eyeglasses having a hinge structure for eyeglasses according to the present invention.

FIG. 7 is a plan view showing a main part of the hinge structure.

FIG. 8 is a vertical cross-sectional view showing a main part of the hinge structure.

FIG. 9 is an assembly exploded perspective view of the hinge structure.

FIG. 10 is an explanatory view showing the assembling of the hinge structure.

FIG. 11 is an explanatory view showing a conventional hinge structure (two pieces of sesame).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 spectacle lens 2 bridge 3 wisdom 4 hinge structure 4a connection part 4b rotation slit 4c insertion member 4d shaft support member 4d ₁ large diameter part 4d ₂ shaft center part 5 temple 5a connection part 6 hinge structure 6a shaft support member 6b Connecting portion 6c Rotating slit 6d Insertion member 6d ₁ Outer peripheral surface 6d ₂ Center hole

Claims (4)

[Claims] 1. In a hinge structure of eyeglasses in which a wisdom and a temple are rotatably connected, the wisdom and / or temple is rotatably connected to an annular connecting portion and the connecting portion. A hinge structure for spectacles, comprising: 2. The wisdom comprises a connecting portion formed in an annular shape, and a rotating slit formed on a peripheral surface of the connecting portion, and the temple is press-fitted into the rotating slit to provide the wisdom. The hinged structure for eyeglasses according to claim 1, further comprising an insertion member whose diameter is expanded in the connecting portion of the eyeglasses. 3. The tip includes an annular connecting portion and an interposing member inserted into the connecting portion, and the outer peripheral surface of the interposing member is gradually tapered toward the top. The eyeglass hinge structure according to claim 1, wherein the central hole is tapered toward the bottom. 4. The eyeglass hinge according to claim 1, wherein the temple is provided with a shaft support member that is press-fitted or screwed to expand the center hole of the insertion member. Construction.