JPH08122715A - Spectacles frame - Google Patents

Abstract

PURPOSE: To correspond to persons of every kind of face width and to fit a spectacles frame loosely or tightly according to an application in the spectacles frame consisting of a frame fixed on the upper edge of a single type lens and a pair of temples mounted on the outer terminal of the frame freely foldably. CONSTITUTION: A temple base part 4 is mounted on a groove part 5 formed in the neighborhood of the outer terminal of the frame 2 along the frame, and width between the temples can be adjusted arbitrarily by moving the temple base part 4 to an arbitrary position.

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 a spectacle frame comprising a frame fixed to the upper edge of a single lens and a pair of temples foldably attached to the outer ends of the frame. , A spectacle frame applicable to sports spectacles and the like.

[0002]

2. Description of the Related Art Conventionally, for example, in sports glasses provided with a single-lens type lens, in order to be worn by people of various face widths, and in order not to come off during intense sports, Several suggestions have been made.

For example, the spectacles disclosed in Japanese Unexamined Patent Publication (Kokai) No. 6-175085 include a single lens having flexibility and elasticity, and a part of the upper edge width (8 to 8) of both side ends of the lens.
(30%) and a vine that is foldably attached to the outer end of the frame, and uses the elasticity of the lens to fit the head of the wearer. Further, in the spectacles described in Japanese Patent Publication No. 4-504317, the temple is bent outward in a V shape, and this portion is devised so as to have elasticity of a wider width inward.

[0004]

As described above, in the conventional single-lens sports glasses, the elasticity of the lens and the elasticity of the temple have been used in order to correspond to the face width. However, the face width varies widely and was not always sufficient. Also, using elasticity means that Hooke's law acts on it, and the wider it gets, the tighter it becomes.
There was a problem that people with a face over a certain width couldn't hang it because of pain, or people with a narrow face were too loose.

Further, there is a problem in that it is economically disadvantageous to manufacture many types of eyeglass frames having different widths between temples according to the face width. The present invention has been made in view of the above circumstances, and an object thereof is to provide an eyeglass frame capable of accommodating people of all face widths and allowing loose or tight fitting depending on the application. And

[0006]

In order to solve the above problems, the present invention comprises a frame fixed to the upper edge of a single lens and a pair of temples foldably attached to the outer ends of the frame. In the eyeglass frame
A temple base hinged to one end of the temple,
A spectacle frame characterized in that it comprises an inter-temple width adjustment part formed by a groove part formed near the outer end of the frame and in which the temple base part is slidably fitted along the frame. Provided.

[0007]

According to the above-mentioned means, the width between temples is adjusted to fit the face width of the wearer by moving the temple base to the optimum position along the longitudinal direction of the frame. In addition, by adjusting so as to move slightly from the optimum position, the spectacle frame can be intentionally loosely or tightly fitted.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a rear perspective view showing a spectacle frame of a first embodiment of the present invention. In this figure, a spectacle frame is composed of a frame 2 which is fixed to the upper edge of a plastic single-lens type lens 1 by a suitable method, and a pair of temples 3 attached to the outer ends of the frame 2. . The temple 3 is joined to the temple base 4 with a hinge structure so as to be foldable. The temple base 4 is slidably fitted in a groove 5 provided in the frame 2. At the center of the upper part of the frame 2 is a temple base 4
A knob 6 for adjusting the position of the groove portion 5 is provided. The material of the frame 2 can be, for example, acetyl cellulose, and the material of the temple base 4 can be, for example, polyacetal. Reference numeral 7 is a pad attached to the lower center of the lens 1.

According to this spectacle frame, when the knob 6 is rotated, the temple base portion 4 is slid along the groove portion 5 in the longitudinal direction of the frame 2 according to the rotation, whereby the width between the temples can be freely adjusted. To be done.

FIG. 2 is a plan view in which the upper portion of the frame is cut away. As shown in this figure, the frame 2 has a hollow structure, and the pinion 8 fixed to the rotary shaft of the knob 6 and a pair of resin racks 9 are housed in the frame 2. ing. One end of the rack 9 is joined to the end surface of the temple base 4 inside the groove 5, and the other end is meshed with the pinion 8. The other ends of the pair of racks 9 are provided with teeth on the sides facing each other, and the pinion 8 is provided between them.
Since both racks 9 are arranged at the same time, one rack 6 can drive both racks 9 at the same time, so that the temple bases 4 on both sides can be simultaneously moved along the frame 2. By moving the temple bases 4 on both sides, the space or width between the temples 3 on both sides is changed according to the amount of movement.

The frame 2 is curved so as to protrude forward as a whole. Since the temple bases 4 on both sides slide along this curved frame 2, the width between the temples 3 is adjusted and at the same time the temples 3 are moved back and forth, which results in relative movement. You will be able to increase or decrease the temple length. The horizontal radius of curvature of the frame 2 is preferably 90 mm to 100
Since the radius of curvature is 100 mm, for example, when the radius of curvature is 100 mm and the width between temples can be adjusted between 125 mm and 145 mm, the back and forth movement associated therewith is 13 mm.

FIG. 3 is a diagram showing an example of the structure of the temple base. The temple 3 is rotatably attached to the temple base 4 with a hinge structure. The temple base 4 has a recess 10 formed obliquely according to the radius of curvature of the frame 2.
And the edge of the groove 5 is fitted in the recess 10,
It is possible to slide along the groove 5. Then, one end of the rack 9 is coupled to the end surface 11 of the temple base 4 located in the groove 5 by an appropriate method.

FIG. 4 is a sectional view showing an example of the temple-to-temple width adjusting section. The temple-to-temple width adjustment unit includes a temple base 4 hinged to one end of the temple 3 and the temple base 4
And a groove 5 that is slidably fitted along the frame. Further, one end of the rack 9 is coupled to the end surface 11 inside the groove 5 of the temple base 4, and a pinion that is engaged with the rack 9 and rotated by the knob 6 is disposed at the other end.

FIG. 5 is a sectional view showing an example of the structure of the adjusting knob. A knob 6 for adjusting the width between the temples is rotatably provided at substantially the center of the frame 2, and a pinion 8 is fixed to the rotary shaft of the knob 6 in the frame 2. The pinion 8 is housed in the frame 2 and the other end thereof is fixed to the groove inner end surface 11 of the temple base 4 by a rack 9
Mesh with one end of the.

When the knob 6 is rotated, the rack 9 is moved left and right through the pinion 8, and accordingly, the temple base 4 fixed to the tip of the rack 9 is slid left and right along the groove 5. The width between temples is adjusted. Further, since the frame 2 is curved, the temple 3 is moved back and forth by the movement of the temple base 4 in the left-right direction, so that the temple length is relatively adjusted.

FIG. 6 is a rear perspective view showing an eyeglass frame of the second embodiment of the present invention. In this embodiment, the frame fixed to the upper edge of the lens is divided into two parts. That is, the spectacle frame includes a frame 12 fixed to both upper edges of both sides of a plastic single-lens type lens 1 by an appropriate method, and a temple 3 attached to these frames 12. The temple 3 is joined to the temple base 13 with a hinge structure so as to be foldable. Temple base 13 is frame 1
2 is provided slidably in the longitudinal direction. The material of the frame 12 can be, for example, acetyl cellulose, and the material of the temple base 13 can be, for example, polyacetal. Reference numeral 7 is a pad attached to the lens 1.

Although the temple base 13 is slidably provided on the frame 12, it can be stopped at any desired position at the same time. The mechanism for this is shown below. FIG. 7 is a central longitudinal cross-sectional view of the width adjustment part between temples, and FIG. 8 is AA of FIG.
It is an arrow view. As shown in these figures, frame 1
2 has a hollow structure and has a slit on the temple side.
It has a groove structure. In this T groove, the temple base 1
The free end side of 3 is fitted. Temple base 1
On the end face of 3, there are formed, for example, two vertically elongated long holes 14 with a bottom, which are vertically provided. A protrusion 15 is provided in the center of each of the upper and lower end surfaces of the temple base 13 in the T groove. Further, the inner wall of the T-shaped groove facing the protrusions 15 is provided with uneven portions 16 respectively, and the protrusions 15 are engaged with the uneven portions 16.

Since these protrusions 15 have the elongated holes 14, the portion including the protrusions 15 has a small thickness and has elasticity in the vertical direction. For this reason, when the temple base 13 is slid to the left and right, the protrusion 15 becomes uneven in the portion including the protrusion 15.
When overcoming the mountain, it is easily deformed inward and the uneven portion 1
It returns to its original position at the position of the valley 6 and the projection 15 and the concave-convex portion 16 are brought into a locked state. At this time, the temple base 13 is positioned at that position so that the left and right movements are restricted.

In the second embodiment, since the frame 12 is independent on the left and right sides, the position of the temple base 13 is adjusted separately on the left and right sides. Further, the horizontal radius of curvature of the single-lens type lens 1 is preferably 90 mm to 100 mm, the radius of curvature is 100 mm, and the width between temples is 125 mm.
When it was possible to adjust the distance between mm and 145 mm, the amount of movement of the temple 3 in the front and back was 13 mm, which was the same as in the first embodiment.

[0020]

As described above, according to the present invention, the temple base portion is provided with the inter-temple width adjusting portion movably attached to the groove portion formed near the outer end of the frame along the frame. Thus, the temple base can be arbitrarily moved and stopped at an arbitrary position, so that the width between temples can be arbitrarily adjusted, and the spectacle frame can be fitted to everyone's face with appropriate pressure.

Further, the width between temples can be consciously changed so that the temples can be worn tightly during intense sports and loosely worn under normal circumstances. Further, since one frame can fit faces of all sizes, it is possible to manufacture with one type of mold, which is very economical in manufacturing.

[Brief description of drawings]

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

FIG. 2 is a plan view in which an upper portion of the frame is cut off.

FIG. 3 is a diagram showing an example of a structure of a temple base.

FIG. 4 is a cross-sectional view showing an example of a width adjustment unit between temples.

FIG. 5 is a cross-sectional view showing an example of the structure of an adjusting knob.

FIG. 6 is a rear perspective view showing an eyeglass frame according to a second embodiment of the present invention.

FIG. 7 is a central vertical cross-sectional view of a width adjustment unit between temples.

8 is a view on arrow AA in FIG. 7. FIG.

[Explanation of symbols]

 1 Lens 2 Frame 3 Temple 4 Temple Base 5 Groove 6 Knob 7 Pad 8 Pinion 9 Rack 10 Recess 11 End Face 12 Frame 13 Temple Base 14 Slot 15 Protrusion 16 Concavo-convex

Claims (4)

[Claims] 1. A spectacle frame comprising a frame fixed to an upper edge of a single-lens type lens and a pair of temples foldably attached to an outer end of the frame, wherein a temple hinged to one end of the temple. The base,
A spectacle frame, comprising an inter-temple width adjustment part formed by a groove part formed in the vicinity of an outer end of the frame so that the temple base part is slidably fitted along the frame. 2. The temple-to-temple width adjusting portion is provided at both ends of the frame and is rotatably installed at substantially the center of the frame, and a pinion fixed to a rotary shaft of the knob in the frame. And a pair of racks housed in the frame, each of which has one end fixed to the groove inner end surface of the temple base and the other end meshed with the pinion. Eyeglass frame. 3. The temple-to-temple width adjusting portion further includes an uneven portion formed on an inner wall of the groove portion, and a protrusion formed on an inner end surface of the groove portion of the temple base portion and locked to the uneven portion. The spectacle frame according to claim 1, wherein: 4. The lens has a horizontal radius of curvature of 9
The spectacle frame according to claim 1, which is 0 mm to 100 mm.