JPH09325303A - Spectacle frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ratably couple a temple to an endpiece by imparting 'jerking' thereto without a hinge. SOLUTION: Either of the joint part of the endpiece 10 or temple 11 in the coupling part of the endpiece 10 and temple 11 of spectacles is provided with a spring pin 13 and the other is provided with a ring 12 for rotatably holding a spring in pressurized contact therewith, by which the temple 11 is rotatably coupled to the endpiece 10 without the hinge. The spring pin 13 is formed to a shape provided with a cut part in an axial line direction in part of a cylindrical part. The ring 12 is formed to a semi-toric shape provided with a semi-toric notch in the central part in a longitudinal direction. Its one outer part is formed to a toric shape and the other part is formed to a C shape by opening the part with a notch of a required angle. The spring pin 13 is rotatably assembled to the ring 12 by bringing its outer peripheral surface into pressurized contact with the inner peripheral surface of the ring by required friction force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle frame, and more particularly, to connecting a temple and a temple without a hinge.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a lens 3 of a spectacle and a temple 4 which are fixed to a rim 2 for externally holding the lens 1 and a temple 4.
And are rotatably connected using hinge 5. That is, as shown in FIG. 6, a pair of flat plates 3a, 3a provided on the side of the wisdom 3
Insert the flat plate 4a provided on the temple 4 side between b,
Bolts 6 are inserted into the mounting holes in these flat plates 3a, 4a, 3b, and the bolts 6 are screwed and connected to a screw formed on the inner peripheral surface of the mounting hole or a nut fixed to the flat plate.

Since the temple 4 is opened when it is used and closed when it is not used, it is necessary to rotate the temple 4 with respect to the tip 3. Using the tightening torque of the bolt 6, the temple 4 is smoothly rotated to open and close. I am able to do it.

[0004]

The temple has a required frictional force between the temple and the wisdom so that the temple can be smoothly rotated by a light operating force and can be stopped and held without fluttering even at a position where the rotation is stopped. As described above, it is necessary to rotatably connect the temple with the so-called “backlash” in the temple. This "agaki" is the tightening of bolt 6 (tightening torque)
The performance of the frame is greatly impaired by the tightening torque. That is, if the tightening torque is too large, it will not open and close smoothly, and if the tightening torque is too small, there will be no "backlash" in the middle.

Further, when the tightening torque is loosened and the temple is repeatedly rotated, the bolt falls off. In addition, if the bolt is dropped, the bolt is very small, so that the bolt is apt to be lost. Further, since the bolt is a separate member, the number of parts is increased, and the bolt has to be adjusted to a required torque and tightened, which is troublesome to assemble.

The present invention has been made in view of the above-mentioned problems, and it eliminates the need for separate parts such as bolts, and provides a good joining force between the wisdom and the temple so that the "backlash" of the temple is good. It is an object of the present invention to provide a spectacle frame which can be constantly held at a constant height.

[0007]

In order to solve the above-mentioned problems, the present invention according to claim 1 is characterized in that, in the connecting portion between the wisdom and the temple of the spectacles, the spring pin is provided at either the wisdom or the abutment portion of the temple. And a ring that rotatably presses and holds the above spring pin on either side, and provides a spectacle frame in which the temple is rotatably coupled to the tip with a required frictional force without a hinge. ing.

In the above spectacle frame, the outer diameter of the spring pin is set to be the same as or slightly larger than the inner diameter of the ring. Therefore, when the spring pin is inserted into the ring, the outer peripheral surface of the spring pin becomes the inner periphery of the ring. It is rotatably connected in pressure contact with the surface. The rotational performance of the temple with respect to the wisdom, that is, the "backlash" is determined by the frictional force of the rotating surfaces that are in sliding contact with each other, and thus can be constantly kept constant. This frictional force can be adjusted by adjusting the material of the wisdom and temples,
It is set by the dimensional relationship between the outer diameter of the spring ring and the inner diameter of the ring, and there is no change over time that occurs when bolting, and stable "backlash" can always be obtained. That is, there is no problem that the opening and closing operability is deteriorated by the tightening force of the bolt as in the conventional case, the operation does not stop midway, and the dropout occurs. Further, since separate members such as bolts are not required, the number of parts can be reduced, and since the work of simply pressing the spring pin into the ring is sufficient, the assembly can be easily performed.

The spring pin has a shape in which an axial cutting portion is provided in a part of a cylindrical portion, and the outer peripheral surface thereof is continuous with a supporting shaft protruding from the tip of the tip or the temple. The ring that press-fits and holds the pin is approximately the same length as the length of the spring pin, and the center part in the length direction has a semi-annular shape with a semi-annular cutout, and one outer side part has an annular shape. At the same time, a notch having a required angle is formed in the other outer portion to form a C-shape, and the outer peripheral surface of the spring pin is pressed against the inner peripheral surface of the ring with a required frictional force so as to be rotatably assembled. preferable. (Claim 2)

The spring pin and the ring may be integrally formed with the tip and the temple, or may be fixed by brazing as a separate body. For example, the spring pin is provided as a separate body, and is attached by brazing the central portion of the outer peripheral surface in the longitudinal direction to the short support shaft that is inclined and projected at the tip of the temple, while the ring is also separate. It is made of a body, and the outer peripheral surface is fixed by brazing to the tip of the wisdom. A spring pin is press-fitted into this ring from the C-shaped side, and is inserted up to the other annular shape. With the entire spring pin inserted in the ring, the support shaft of the spring pin is located in the semicircular notch of the ring, the spring pin regulates the rotation angle, and the temple with the spring pin is attached to the ring. It is designed so that it can be opened up to a linear position with respect to the established wisdom. The rings may be C-shaped on both outer sides of the semicircular ring.

The wisdom and temple having the spring pin and the ring, respectively, are made of a steel material having a spring property, an age hardening material containing beryllium copper, etc., and an engineering plastic having a spring property. (Claim 3)
Note that the material is not limited to the above materials as long as the material has a spring property.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In the frame of the illustrated embodiment, both the tip 10 and the temple 11 are made of steel. A ring 12 made of steel is fixed by brazing to a mating portion 10a of the tip 10 that is joined to the temple 11. A supporting shaft 11b, which is shorter than the center in the width direction of the temple 11, projects from the center of the temple 11 and a spring pin 13 made of steel is fixed to the tip of the supporting shaft 11b by brazing. .

The spring pin 13 has a cylindrical shape and has an axially cut portion 13a formed in a part thereof, and the axial length L is matched with the width W of the tip 10 and the temple 11. A part of the outer peripheral surface of the central portion of the spring pin 13 in the longitudinal direction is fixed to the support shaft 11b.

The ring 12 is provided with a cylindrical member having the same length as that of the spring pin 13, a semi-annular cutout 12a is provided in the central portion in the width direction thereof, and a semi-annular portion 12b is left. One outer side of the portion 12b is an annular portion 12c having no cutout.
On the other hand, the other outer side is provided with a cutout 12d of about 60 degrees to form a C-shaped portion 12e.

The inner diameter R1 of the ring 12 is set to be slightly smaller than the outer diameter R2 of the spring pin 13,
The spring pin 13 is press-fitted into the shaft so as to be rotatably held with a required frictional force.

The temple 11 provided with the spring pin 13 and the tooth 10 provided with the ring 12 have a C-shaped portion of the ring 12 in a state in which the cutting portion 13a of the spring pin 13 is closed and compressed to a minimum diameter. Push in from the 12e side. At this time, the C-shaped portion 12e is expanded and the spring pin 13 is inserted. The spring pin 13 is fitted into the other annular portion 12c, and the entire spring pin 13 is press-fitted inside the ring 12. The temple 11 is rotatably assembled to the wisdom 10 by only this one-touch operation.

In the spectacle frame having the above structure, the outer peripheral surface 13b of the spring pin 13 is the annular portion 12 of the ring 12.
The spring pin 13 is securely held by the ring 12 in a rotatable manner by being pressed against the inner peripheral surfaces of the c, the semi-annular portion 12b and the C-shaped portion 12e with a required frictional force. Temple 1 when used
When opening and closing 1, the spring pin 13 rotates by simply operating the temple 11 by applying a small operating force. Since this operation force has the frictional force set appropriately, a required small operation force is sufficient. However, unless this required operation force is applied, the temple does not rotate and is held at a predetermined angle even in the middle. . That is, the temples 11 are not joined in a state of hanging on the wisdom 10, and can be opened and closed with a required "backlash".

The adjustment of the "movement" of the temple 11 with respect to the tip 10 can be easily performed by setting the frictional force generated when the spring pin 13 and the ring 12 are fitted together. Moreover, unlike the conventional bolting, it does not loosen with time, and the temple 11 does not come off due to the falling of the bolt.

The present invention is not limited to the above-mentioned embodiment, and the temples and tips may be molded using engineering plastics. In any case such as the case of the engineering plastic and the metal, the ring and the spring pin can be integrally formed with the temple and the tip. Further, in the above embodiment, the spring pin is provided on the temple side and the ring is provided on the wisdom side, but it goes without saying that they may be reversed. Further, on the ring side, C-shaped portions may be formed on both outer sides of the central semi-annular portion.

[0020]

As is apparent from the above description, in the spectacle frame of the present invention, since the temple and the joint are rotatably coupled without a hinge, the problem occurs in the conventional spectacle frame. It is possible to eliminate the loosening and dropping of the screws that had been used. In addition, by simply adjusting the frictional force of the pressure contact surface between the spring pin and the ring, it is possible to easily provide the required "backlash", and the spectacle frame can be used easily.

Further, the assembling of the temple and the wisdom can be performed by one-touch operation of pushing the spring pin into the ring, and the assembling workability can be improved. Further, since the spring pin and the ring are provided on the tip and the temple, no separate parts are required, the number of parts is reduced, and parts management is facilitated.

[Brief description of drawings]

FIG. 1 is a perspective view showing an eyeglass frame according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

3A is a perspective view of a spring pin, FIG. 3B is a partial perspective view of a temple, and FIG. 3C is a plan view showing a state in which a spring pin is attached to the temple.

4A is a perspective view of a ring, FIG. 4B is a partial perspective view of Satoshi, and FIG. 4C is a plan view of a state in which the ring is attached to Satoshi.

FIG. 5 is a perspective view of a conventional eyeglass frame.

6 is a schematic plan view showing a combined state of the temple and the wisdom of FIG.

[Explanation of symbols]

 10 wisdom 11 temple 11b support shaft 12 ring 12a semi-annular notch 12c annular portion 12e C-shaped portion 13 spring pin 13a cutting portion

Claims (3)

[Claims] 1. At a joint between the wisdom and the temple of the spectacles, a spring pin is provided on either the wisdom or the abutment portion of the temple, and the other is provided with a ring for rotatably press-holding the spring pin. , A spectacle frame that rotatably joins the temple to Ji without a hinge. 2. The spring pin has a shape in which a cut portion in the axial direction is provided in a part of a cylindrical portion, and an outer peripheral surface of the spring pin is continuous with a supporting shaft protruding from the tip of the tip or the temple. The ring that press-fits and holds the pin is
The length of the spring pin is approximately the same as the length of the spring pin.The center part of the length direction is a semi-annular shape with a semi-annular notch, and one outer part is annular and the other outer part is the required angle. The eyeglass frame according to claim 1, wherein the notch is formed into a C shape, and the outer peripheral surface of the spring pin is pressed against the inner peripheral surface of the ring with a required frictional force so as to be rotatably assembled. 3. The steel and the temple having the spring pin and the ring, respectively, are formed of a steel material having a spring property, an age hardening material containing beryllium copper, and an engineering plastic having a spring property. The spectacle frame according to 2.