JP2007101974A - Hinge structure of spectacles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge structure of spectacles in which rotational resistance of a temple hardly decreases even when rotated very often for a long period. <P>SOLUTION: Disclosed is the hinge structure of spectacles for fitting the temple T to a wraparound endpiece Y through a coupling member C. The coupling member C is elastic and has an upper small-piece part Ca and a lower small-piece part Cb, and a columnar part Cc coupling both those small-piece parts and the temple has a temple folded-back part Ta formed by folding back the tip side of the temple to hook the columnar part. The rear end side of the wraparound endpiece is so shaped as to clamp the upper small-piece part Ca and lower small-piece part Cb of the coupling member, and while the temple T and wraparound endpiece Y are fitted to the coupling member while crossing each other, the temple folded-back part Ta is elastically pressed by the coupling member C. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a hinge structure for eyeglasses that rotatably attaches a temple to an armor via a connecting member.
More specifically, the present invention relates to a hinge structure for eyeglasses in which the turning resistance of the temple does not decrease even when the eyeglasses are used for a long period of time.

2. Description of the Related Art Conventionally, as a hinge structure in which a temple is rotatably attached to an armor via a connecting member in eyeglasses, various hinge structures using a connecting screw as a connecting member are known (see, for example, Patent Document 1). ).
However, in the hinge structure using a screw, if the eyeglasses are worn for a long period of time, the screw is gradually loosened due to vibration or the like and is likely to come off.
Further, since the tightening force of the screw changes greatly due to a slight difference in the amount of screwing, there are cases where the rotational resistances of the left and right temples are different from each other and the rotational resistances of the temples are different for each product.
For this reason, various hinge structures for glasses that do not use screws have been developed.
As a structure not using a screw, for example, a hinge structure is known in which a connecting member attached to an armor is sandwiched between folded portions formed by folding the temple tip side (see, for example, Patent Document 2).

JP-A-8-5965 JP 2001-249308 A

However, in the hinge structure of the glasses using the connecting member shown as representative in Patent Document 2, a restoring force is exerted on the folded portion of the temple to open the folded portion, while the temple urges the connecting member. Since it was not the structure which pinched | interposed, there existed a problem that rotation resistance fell gradually, while a temple was rotated several times.
Further, when the rotational resistance is lowered, the temple itself may be loose.
The present invention solves such problems.
That is, an object of the present invention is to provide a hinge structure for eyeglasses in which the rotation resistance of the temple does not decrease as much as possible even if the temple is rotated many times over a long period of time.

  Thus, as a result of earnest research on the background of such problems, the present inventor is able to apply elastic force to the temple by the elastic connecting member and to sandwich the elastic connecting member by the armor. And found that the elastic pressure can be maintained, and based on this finding, the present invention has been completed.

  In other words, the present invention provides (1) a hinge structure for spectacles that allows a temple to be pivotally attached to an armor via a connecting member, the connecting member having elasticity, and having an upper small piece portion and a lower portion. A side piece, and a columnar part connecting the two pieces, and the temple has a temple turn-up part formed by folding the front end side of the temple to be hooked on the columnar part, The rear end side of the armor is shaped so as to sandwich the upper small piece part and the lower small piece part of the connecting member, and the temple is folded in a state where the temple and the armor are attached to the connecting member so as to cross each other. This is in the hinge structure of the glasses whose part is repressed by the connecting member.

  In the present invention, (2), the hinge of the glasses according to (1) above, wherein a fitting groove into which the armor is fitted is formed in at least one of the upper small piece part and the lower small piece part. Lies in the structure.

  Further, the present invention is the (3), wherein the armor has a armor folded part where the rear end side of the armor is folded, and the upper small piece part and the lower piece part are sandwiched between the armor folded part. It exists in the hinge structure as described in (1).

  Further, according to the present invention, (4) when the temple is rotated, a part of the temple is in contact with the armor turning portion and the rotation of the temple is stopped. It exists in a hinge structure.

  Further, according to the present invention, there is provided (5) a pair of eyeglasses according to (1), wherein a climbing surface on which the temple rides is formed on at least one of the upper small piece part and the lower small piece part. It is in the number structure.

  Further, the present invention is (6), wherein a bifurcated portion is formed on the rear end side of the armor, and the upper small piece portion and the lower small piece portion are sandwiched between the bifurcated portions. The hinge structure of glasses.

  Further, according to the present invention, (7), the temple folding back portion is provided with a rotation projection for contacting the armor at a position in front of the connecting member and stopping the rotation of the temple. ) In the hinge structure of the glasses described in.

  Further, the present invention is (8) a hinge structure for spectacles, wherein a temple is rotatably attached to an armor via a connecting member, the connecting member having elasticity, and having an upper small piece portion and a lower portion. A side piece, and a columnar part that connects the upper piece and the lower piece, and the rear end of the end piece is folded back so as to be hooked on the columnar part. The temple has a folded-back portion, and the distal end side of the temple is shaped so as to sandwich the upper small piece portion and the lower small piece portion of the connecting member, and is attached to the connecting member so that the temple and the yoroly cross each other. In this state, the hinge structure of the glasses is such that the armor turning portion of the armor is pressed by the connecting member.

  Further, the present invention resides in (9) the hinge structure of the glasses according to (8), wherein the temple is formed in a thin plate shape, and a slit for sandwiching the connecting member is formed in the temple.

  Further, the present invention is the glasses according to (9), wherein the upper small piece portion and the lower small piece portion are formed with fitting grooves into which the periphery of the slit of the temple is fitted. It exists in a hinge structure.

  Moreover, this invention exists in the hinge structure of the spectacles as described in said (1) by which the said temple and the said alloy are formed with the strip | belt-shaped wire (11).

  In addition, as long as the objective of this invention is met, the structure which combined the said invention suitably is also employable.

According to the hinge structure of the present invention, the temple has a temple turn-back portion in which the front end side of the temple is turned back so as to be hooked on the columnar portion, and the rear end side of the armor is provided with the upper small piece portion and the lower side of the connecting member. The temple folded portion is elastically pressed by the connecting member in a state in which the small piece portion is sandwiched between the temple and the armor and attached to the connecting member so as to cross each other.
Therefore, a constant turning resistance is obtained while the temple turn-back portion is elastically pressed (biased) by the connecting member.

  In addition, the rear end of the armor is attached so as to be sandwiched between the connecting members, and the temple folding back part is pressed. Therefore, even if the temple is used for a long time and the temple is rotated many times, its rotational resistance is almost reduced. do not do.

  Further, when the armor and the temple are reversed, for example, the armor has a armor folded part, the armor folded part is hooked on the columnar part of the connecting member, and the rear end side of the temple is connected to the upper small piece part of the connecting member and the lower part. Even when the side piece is sandwiched, the same effect is obtained.

The best mode for carrying out the present invention will be described below with reference to the drawings.
[First embodiment]
FIG. 1 shows spectacles including a first embodiment of the hinge structure of spectacles of the present invention.
The hinge structure of the glasses according to the first embodiment is a hinge structure of glasses in which a temple T is attached to the Yloy Y via a small connecting member C so as to be rotatable.
Yoroi Y is substantially L-shaped, and the upper end of the L-shaped long side extending rearward of the glasses is folded back into a U-shape.
That is, the rear end side of the armor Y has a shape that can sandwich the connecting member C.
Similarly, the front end side of the temple T is also folded back in a U shape.
The armor Y and the temple T are attached to the connecting member C described below so as to cross each other.

As shown in FIG. 2, the connecting member C includes an upper small piece portion Ca, a lower small piece portion Cb, and a columnar portion Cc that connects the upper small piece portion Ca and the lower small piece portion Cb.
Further, for example, the whole connecting member C is integrally formed of synthetic resin as a material so as to have elasticity.
However, the connecting member C is formed by forming the upper small piece portion Ca, the lower small piece portion Cb, and the columnar portion Cc as separate parts, and has formed small holes in the upper small piece portion Ca and the lower small piece portion Cb, respectively. It is also possible to integrate by pressing the columnar portion Cc into the hole.
In this case, there is an advantage that the interval between the upper small piece portion Ca and the lower small piece portion Cb can be adjusted.

In the upper small piece portion Ca, a fitting groove Ca1 for fitting the Yoroi Y along the longitudinal direction is formed on one surface side of the flat rectangular parallelepiped, and the upper small piece portion Ca has a concave cross section. Yes.
The lower small piece portion Cb has the same shape as the upper small piece portion Ca, and a fitting groove Cb1 into which the Yoroi Y is fitted is formed.
The upper small piece portion Ca and the lower small piece portion Cb having a concave cross section are in a state of plane symmetry with the fitting grooves Ca1 and Cb1 facing the back.

  As described above, the temple T is formed with the temple folded portion Ta whose front end is folded in a U shape, and can be hooked on the columnar portion Cc of the connecting member C.

Here, the U-shaped folded shape on the tip side of the temple T is more specifically, after a semicircle or more arc is drawn, the tip portion of a slight length is bent slightly outward. It has a shape.
The reason for this is that the temple turn-up portion Ta of the temple T can be easily attached to the columnar portion Cc, and the temple turn-up portion Ta is not easily detached from the columnar portion Cc after being attached. It is for doing so.

  On the other hand, as described above, the end of the armor Y is folded back into a U shape to form the armor folded part Ya, and the armor Y is strong so as to press the upper small piece Ca and the lower small piece Cb of the connecting member C. Can be pinched.

  The armor folded portion Ya may be formed with a bent portion slightly inward at its tip so that the connecting member C does not come off the temple T when the plate-like upper small piece portion Ca and the lower small piece portion Cb are sandwiched.

Now, the assembly of the armor Y, the temple T, and the connecting member C is performed as follows.
First, the temple T is attached to the connecting member C by pulling and pulling on the columnar part Cc of the connecting member C in a state where the temple folding back portion Ta is slightly expanded against the spring force.
Next, the armor Y is attached to the connecting member C in a state where the temple T is rotated in the direction in which the temple T is closed.
When the armor Y is attached to the connecting member C, the armor folded portion Ya is pushed in a slightly expanded state against the spring force in the same manner as the temple T.
The armor turning portion Ya of the armor Y will fit into the fitting grooves Ca1, Cb1 of the connecting member C.

Thus, the temple T, the armor Y, and the connecting member C can be easily assembled to each other by inserting the temple T and the armor Y into the connecting member C so as to cross each other.
FIG. 3A shows a state where the temple T and the armor Y are orthogonal to each other.

  When the temple T shown in FIG. 3A is rotated around the connecting member C fixed to the armor Y, a part of the temple T comes into contact with the armor turning portion Ya as shown in FIG. The rotation of the temple T stops.

FIG. 4 shows a cross section taken along the line IV-IV in FIG.
The Y-shaped Y is fitted into the fitting grooves Ca1 and Cb1 with the U-shaped Y-shaped folded portion Ya on the front end side being slightly expanded, and is pressed against the connecting member C by the U-shaped restoring force. Weight is added.
On the other hand, the temple T is sandwiched between the upper small piece portion Ca and the lower small piece portion Cb while being urged by elastic pressure.
Therefore, a predetermined rotation resistance can be generated while the temple T is rotating.
Further, even if the connecting member C is worn by the turning resistance, the turning resistance is maintained because the pressing force applied to the connecting member C by the Yoroi Y is applied.
Even if the temple T is rotated many times using glasses over a long period of time, the rotation resistance of the temple T hardly decreases.

5, 6 and 7 show modifications of the connecting member C, respectively.
FIGS. 5 (b), 6 (b), and 7 (b) are respectively connected to the connecting member C in FIGS. 5 (a), 6 (a), and 7 (a). The cross section of the form which assembled | attached is shown.
Compared with the connecting member C shown in FIG. 2, the connecting member C shown in FIG. 5A has an advantage that the temple T can positively rotate over.
Therefore, when the temple T and the armor Y are in a straight line, that is, when the temple T is opened as much as possible, a degree of freedom is provided so that the temple T can be slightly rotated outward. This degree of freedom is made possible by having tapered riding surfaces Ca2, Cb2.

The connecting member C shown in FIG. 6A is different from the connecting member C shown in FIG. 2 in that an angle is provided between the upper small piece portion Ca and the lower small piece portion Cb.
Assuming that the temple T is rotated before being used, that is, when the temple T is rotated further from the opened state, the elastic force acts on the temple T at the initial opening stage.
It is safe because the temples do not open carelessly.

The connecting member C shown in FIG. 7A differs from the connecting member C shown in FIG. 2 in that the corners of the fitting grooves Ca1 and Cb1 into which the Yoroi Y is fitted are chamfered obliquely.
This chamfered shape is a shape in which the inner corners of the groove having a concave cross section are cut while changing the cutting depth to form the riding surfaces Ca4 and Cb4 that are inclined toward the opening toward the opening side.

In this way, since the riding surfaces Ca4 and Cb4 are formed in the fitting grooves Ca1 and Cb1, when the temple T and the armor Y are in a straight line (when the temple T is opened to the maximum), the armor Y is further You can ride on an inclined surface.
As a result, the temple T further rotates over, but in this case, the connecting member C also rotates together with the temple T.

[Second Embodiment]
FIG. 8 shows a second embodiment of the hinge structure for eyeglasses of the present invention.
The hinge structure of the glasses of the second embodiment differs from the hinge structure of the glasses of the first embodiment in the shapes of the temple T and the armor Y.
A bifurcated portion Yb is formed on the rear end side of the armor Y, and a turning projection Tb is provided on a temple turn-up portion Ta of the temple T.
The locking protrusion Tb can be attached by, for example, brazing or pressing.

  For example, when the rear end side of the armor Y is folded in a U shape, the temple T abuts against the armor folded portion Ya, as in the above-described embodiment. This is because there is no portion with which the temple T abuts in the case of a bifurcated shape as in the embodiment.

  FIG. 9 shows a case where the temple T and the armor Y are aligned with each other, and the upper small piece portion Ca and the lower small piece portion Cb come into contact with the base Yc of the bifurcated portion Yb of the armor Y, so that the temple T Has been stopped.

10 (a) to 10 (c) show a case where the temple T is rotated around the connecting member C for reference.
FIG. 10A shows a state where the temple T is closed.
The temple T is arranged perpendicular to the armor Y, and the turning projection Tb of the temple folding back portion Ta is located on the side in the spectacle width direction from the position of the connecting member C.
Then, when the temple T is rotated in the opening direction of the temple T and the temple T is rotated and opened until the temple T is substantially in a straight line with the armor Y as shown in FIG. The locking protrusion Tb abuts against the armor Y.

  When the temple T is further rotated in the direction in which the temple T is opened from this state, as shown in FIG. 10C, the temple folding back portion Ta is deformed so as to expand, and the temple T can be rotated slightly over.

[Third embodiment]
FIG. 11 shows a third embodiment of the hinge structure for eyeglasses of the present invention.
The temple T and the armor Y of the third embodiment are different from those of the first embodiment (the temple T and the armor Y are formed of a round wire) in that they are formed of a strip-shaped wire.
The widths of the fitting grooves Ca1 and Cb1 of the connecting member C are set in accordance with the band widths of these band-shaped temples T and Yoroi Y.

FIG. 12 shows a state where the temple T is opened from a state where the temple T is closed to a state where the temple T is substantially in line with the armor Y.
Since the fitting grooves Ca3 and Cb3 having tapered running surfaces are formed in the connecting member C, over-rotation is possible as in the example shown in FIG.
FIG. 13 shows a cross section taken along line XIII-XIII in FIG.

In the third embodiment, since the temple T is a strip-shaped wire, the contact area with the connecting member C is increased, so that the rotation resistance of the temple T can be increased.
Further, since the armor Y is also a belt-like wire rod, the connecting member C hardly slides. Therefore, it is not always necessary to provide the fitting groove Ca1 and the fitting groove Cb1, and one can be employed.

[Fourth embodiment]
FIG. 14 shows a fourth embodiment of the hinge structure of the glasses of the present invention.
The hinge structure of the glasses according to the fourth embodiment is similar to the hinge structure of the glasses according to the first embodiment, in which the temple T is rotatably attached to the armor Y via a small connecting member C. This is a hinge structure.

FIG. 15 is an expanded view of the hinge structure of the glasses of FIG.
The armor Y has a armor folded part Ya formed by folding back the rear end side of the armor Y to be hooked on the columnar part Cc of the connecting member C.

The temple T is formed in a band shape, and the tip side thereof has a shape that sandwiches the upper small piece portion Ca and the lower small piece portion Cb of the connecting member C.
Specifically, a slit Tc (made of a narrow portion Tc1 and a wide portion Tc2) for sandwiching the connecting member C is formed along the longitudinal direction of the temple.
Then, when the connecting member C is inserted into the wide portion Tc2 of the slit Tc and moved as it is, the connecting member C is fitted and attached to the narrow portion Tc1.
As described above, Yoroi Y is fitted into the fitting grooves Ca1 and Cb1 of the connecting member C and receives elastic force.

In this example, since the connecting member C is securely and firmly fitted and attached to the slit Tc narrow width portion Tc1 of the temple T, a sufficient force to press the connecting member C can be secured.
As a result, there is an advantage that the force with which the connecting member C represses the Yloy Y is increased.

Although the present invention has been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the essence thereof.
For example, in the first to third embodiments described above, the example in which the fitting grooves Ca1 and Cb1 into which the Yoroi Y is fitted is formed on the upper and lower surfaces of the connecting member C is described. It is also possible to form at least one of the part Ca and the lower small piece part Cb.

  In addition, it is naturally possible to reverse the attachment position with respect to the connecting member C of the first to third embodiments described above.

FIG. 1 is an explanatory view showing eyeglasses including a first embodiment of the hinge structure of eyeglasses of the present invention. 2 is an exploded perspective view of the hinge structure of the glasses shown in FIG. FIGS. 3A and 3B are enlarged explanatory views showing the hinge structure of the glasses of FIG. 1, in which FIG. 3A shows a state in which the temple is closed, and FIG. 3B shows a state in which the temple is opened. FIG. 4 is an explanatory view showing a cross section taken along the line IV-IV in FIG. FIG. 5 is an explanatory view showing a modification of the connecting member used in the first embodiment of the hinge structure of the eyeglasses of the present invention, (a) is a perspective view, and (b) is a temple and armor on the connecting member. It is a cross-sectional view at the time of attachment. FIG. 6 is an explanatory view showing a modification of the connecting member used in the first embodiment of the hinge structure of the glasses of the present invention, (a) is a perspective view, and (b) is a temple and armor on the connecting member. It is a cross-sectional view at the time of attachment. FIG. 7 is an explanatory view showing a modified example of the connecting member used in the first embodiment of the hinge structure of the eyeglasses of the present invention, (a) is a perspective view, and (b) is a temple and armor on the connecting member. It is a cross-sectional view at the time of attachment. FIG. 8 is an exploded perspective view illustrating a second embodiment of the hinge structure of the glasses according to the present invention. FIG. 9 is an explanatory view showing a second embodiment of the hinge structure of the glasses of the present invention. 10A and 10B are explanatory views showing changes in the form when the temple is rotated around the connecting member. FIG. 10A shows a state in which the temple is closed. FIG. 10B shows a state in which the temple and the alloy are substantially in a straight line. And (c) shows a state where the temple is over-rotated. FIG. 11 is an exploded perspective view of the third embodiment of the hinge structure for eyeglasses according to the present invention. FIGS. 12A and 12B are explanatory views showing a third embodiment of the hinge structure of the eyeglasses of the present invention, in which FIG. 12A shows a state where the temple is closed, and FIG. 12B shows that the temple and the armor are substantially in a straight line. Indicates the state. FIG. 13 is an explanatory diagram showing a cross section taken along line XIII-XIII in FIG. FIG. 14 is an explanatory view showing a fourth embodiment of the hinge structure of the glasses according to the present invention. FIG. 15 is an explanatory diagram perspectively showing a fourth embodiment of the hinge structure for eyeglasses of the present invention.

Explanation of symbols

C connecting member Ca upper small piece part Cb lower small piece part Ca1, Cb1 fitting groove Ca2, Cb2 riding surface Ca3, Cb3 fitting groove Ca4, Cb4 riding surface Cc columnar part T temple Ta temple folding part Tb anti-rotation projection Tc slit Tc1 Narrow part Tc2 Wide part Y Yoroi Ya Yoroi folded part Yb Bifurcated part Yc Base

Claims (11)

It is a hinge structure of glasses that rotatably attaches a temple to the armor via a connecting member,
The connecting member has elasticity, and has an upper small piece portion, a lower small piece portion, and a columnar portion that connects both the small piece portions,
The temple has a temple turn-back portion formed by folding the front end side of the temple to be hooked on the columnar portion,
The rear end side of the armor is shaped to sandwich the upper small piece part and the lower small piece part of the connecting member,
A hinge structure for eyeglasses, wherein the temple folding part is pressed by the connecting member in a state where the temple and the armor are attached to the connecting member so as to cross each other.   The hinge structure for glasses according to claim 1, wherein a fitting groove into which the armor is fitted is formed in at least one of the upper small piece part and the lower small piece part. The Yoroi has a Yoroi folded portion where the rear end side of the Yoroi is folded,
The hinge structure according to claim 1, wherein the upper small piece portion and the lower small piece portion are sandwiched between the armor folded portions.   4. The hinge structure for eyeglasses according to claim 3, wherein when the temple is rotated, a part of the temple comes into contact with the armor folding portion and the rotation of the temple stops. 5.   The hinge structure for spectacles according to claim 1, wherein a climbing surface on which the temple rides is formed on at least one of the upper small piece part and the lower small piece part. A bifurcated portion is formed on the rear end side of the armor,
The hinge structure for eyeglasses according to claim 1, wherein the upper small piece portion and the lower small piece portion are sandwiched between the bifurcated portions.   7. The eyeglasses according to claim 6, wherein the temple folding back portion is provided with a rotation projection for contacting the armor at a position in front of the connecting member and stopping the rotation of the temple. Hinge structure. It is a hinge structure of glasses that rotatably attaches a temple to the armor via a connecting member,
The connecting member has elasticity, and has an upper small piece portion, a lower small piece portion, and a columnar portion that connects the upper small piece portion and the lower small piece portion,
The armor has a armor folded part formed by folding the rear end side of the armor to be hooked on the columnar part,
The distal end side of the temple is shaped to sandwich the upper small piece portion and the lower small piece portion of the connecting member,
A hinge structure for eyeglasses, wherein a folded end part of the armor is pressed by the connecting member in a state where the temple and the armor are attached to the connecting member so as to cross each other.   9. The hinge structure for glasses according to claim 8, wherein the temple is formed in a thin plate shape, and a slit for sandwiching the connecting member is formed in the temple.   The hinge structure for eyeglasses according to claim 9, wherein a fitting groove into which the periphery of the slit of the temple is fitted is formed in the upper small piece part and the lower small piece part.   The hinge structure of glasses according to claim 1, wherein the temple and the armor are formed of a strip-shaped wire.

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