JPH11231267A - Spectacle frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive spectacle frame which can be folded flat and short by decreasing the number of components. SOLUTION: An auxiliary temple 5 is connected to a fitting piece 4 fixed to a lens frame 2 so that it can be folded down freely from a rear projection state and also has upward restoring elasticity, and a temple main body 6 is connected to the rear end of the auxiliary temple 5 so that it can be inwardly folded freely from a rear-projection extension state. In the auxiliary temple 5, a means which holds the attitude of the auxiliary temple 5 to the fitting piece 4 and a means which holds the attitude of the temple main body 6 to the auxiliary temple 5 are provided and components are used in common to decrease the number of components.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an eyeglass frame,
More specifically, the present invention relates to a spectacle frame which is flat and low in volume by folding a temple in two steps along a lens frame.

[0002]

2. Description of the Related Art There has already been proposed an eyeglass frame in which a temple is folded flat against a lens frame when the eyeglasses are not used so that the camera is easy to carry in a compact and low volume state.

[0003] In the above-mentioned conventional eyeglass frame, a short auxiliary temple is attached to the lens frame so as to be freely bent downward from the rearward protruding state, and the auxiliary temple has a rearward protruding posture. Elasticity is maintained to maintain a downward bending posture, and a long temple body is connected to the rear end of this auxiliary temple in a foldable manner to elastically maintain a rearward protruding posture and an inward folding posture. ing.

Heretofore, the means for maintaining the elastic posture of the auxiliary temple with respect to the lens frame has been incorporated in the auxiliary temple, and the means for maintaining the elastic posture of the temple main body with respect to the auxiliary temple has been incorporated in the temple main body.

[0005]

As described above, in the structure in which the elastic posture holding means is separately provided for each of the auxiliary temple and the temple main body, the number of components to be used increases, and the assembling also takes time. Therefore, there is a problem that the cost is increased.

An object of the present invention is to provide a spectacle frame capable of realizing cost reduction by reducing the number of components and improving the efficiency of an assembling operation.

[0007]

According to a first aspect of the present invention, an auxiliary temple is provided at a rear end of a mounting piece provided at both ends of a lens frame, and a rearward projecting state is provided. It can be bent freely from below and connected so as to elastically maintain the rearward projecting posture, and the temple body at the rear end of this auxiliary temple, the rearward projecting posture and the inward folding are free. In the eyeglass frame connected as described above, the first cam member is provided on the mounting piece and the second cam member is provided on the temple main body, and the auxiliary temple has a through hole provided in the length direction. A first contact member that contacts the cam surface of the first cam member, a second contact member that contacts the cam surface of the second cam member, and a first contact member and a second contact member Are pressed in the directions away from each other, and the cam surfaces of the first and second cam members are The first cam member and the first contact member resiliently hold the rearward projecting posture of the auxiliary temple, and the second cam member and the second contact member are In addition, a configuration is employed in which the temple body elastically retains the rearward projecting posture and the inward bending posture with respect to the auxiliary temple.

According to a second aspect of the present invention, in the first aspect of the present invention, the first cam member and the first abutting member elastically hold the downward bending posture of the auxiliary temple. The configuration is adopted.

According to a third aspect of the present invention, in the first or second aspect of the invention, the temple body is substantially linear with respect to the auxiliary temple between the cam surface of the second cam member and the end of the auxiliary temple. A gap is provided in the state of protruding backward,
This configuration employs a configuration in which the temple main body can be pushed outward by an amount corresponding to the gap with respect to the auxiliary temple in a state where the temple main body is in the rearward projecting posture.

Here, the tip of the auxiliary temple is pivotally fixed to a first cam member provided on a mounting piece of the lens frame, and a first contact member in the auxiliary temple is pressed against a cam surface of the cam. At the same time, a second cam member provided at the distal end of the temple body is pivotally fixed to the rear end of the auxiliary temple, and the second contact member in the auxiliary temple is pressed against the cam surface of the second cam. I have.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1 to FIG.
A pair of lens frames 2, 2 are connected by a bridge 3, a mounting piece 4 is provided on opposite outer ends of both lens frames 2, 2, and a short auxiliary temple 5 is mounted on the rear side of the mounting piece 4. A long temple main body 6 is connected to the rear end of the auxiliary temple 5.

As shown in FIGS. 4 and 5, the mounting piece 4 is fixed to the outer surface of the lens frame 2 by brazing, and also serves as a split for connecting the separated portion of the lens frame 2 with a screw. A vertical first cam member 7 protruding rearward is provided on the surface side, and a screw insertion hole 8 penetrating the first cam member 7 in a lateral direction is provided.

The auxiliary temple 5 is bifurcated by a pair of stopper pieces 10, 10 having a through hole 9 along the length direction and having a vertical end and having a vertical end.
The space between the zeros is externally inserted into the first cam member 7, and the auxiliary temple 5 is connected to the mounting piece 4 by a screw 11 penetrating this fitted portion.

As shown in FIG. 5, the first cam member 7 has an arc whose rear end edge is eccentric downward with respect to the screw insertion hole 8,
It has a horizontal projection 12 at the upper part of the rear edge and a cam surface 14 having a projection 13 and a straight part 13a at the lower part.

The rear end of the auxiliary temple 5 is bifurcated by horizontal stoppers 15, 15 facing up and down. 2 cam members 16 are protruded, and both stopper pieces 15, 15 are provided.
And a fitting portion of the second cam member 16 are connected by a screw 17.

As shown in FIGS. 5 (A) and 5 (B), the second cam member 16 of the temple body 6 has cam surfaces 18 and 19 having a substantially right-angled positional relationship between the leading edge and the inner edge. Face 18
Is substantially perpendicular to the length direction of the temple body 6, the cam surface 19 of the inner edge is inclined rearward and inwardly upward, and the two cam edges 18, 19 are provided with concave notches 20, 21 respectively. Has become.

A means for elastically holding a rearward projecting posture and a downward bending posture of the auxiliary temple 5 with respect to the mounting piece 4 in a through hole 9 of the auxiliary temple 5, and a temple body 6 for the auxiliary temple 5. And a means for elastically holding a rearwardly protruding posture and an inward folding posture.

As shown in FIG. 5, both of the above means are movable in the axial direction of the through hole 9, and the contact member 22 with the cam surface 14 of the first cam member 7 and the second member of the temple body 6
The contact member 23 with respect to the cam surface 18 or 19 of the cam member 16 is contracted between the two contact members 22 and 23, and the two contact members 22 and 23 are pressed in a direction away from each other. A spring 24 for pressing the members 22 and 23 against the corresponding cam surfaces is housed, so that the spring 24 is commonly used for pressing the two contact members 22 and 23 in the auxiliary temple 5.

The auxiliary temple 5 for the first cam member 7
Of the auxiliary temple 5 with respect to the mounting piece 4
However, the spring 24 can be bent downward at a substantially right angle from the rearward protruding state, and the spring 24 assists in a state in which the contact member 22 abuts on the projection 12 due to the pressing action of the cam surface 14 and the abutment member 22. The rearwardly projecting posture of the temple 5 is elastically held, and the downwardly bent state of the auxiliary temple 5 is held by the straight portion 13a by the passage of the contacting member 22 to the projection 13. When the protrusion 13 passes upward, the auxiliary temple 5 is automatically biased to return to the rearward projecting posture due to the eccentricity of the cam surface 14. In addition, the downward bending angle of the auxiliary temple 5 is limited,
It is also possible to use the contact member 22 under the condition that it does not exceed the protrusion 13.

As described above, since the auxiliary temple 5 is simply folded downward with respect to the mounting piece 4, the structure of the connecting portion is simple and simple, and the mounting piece 4 can be reduced in size. The auxiliary temple 5 does not jump up when folded downward.

As shown in FIGS. 5A and 5B, when the temple main body 6 is extended substantially linearly so as to protrude rearward with respect to the auxiliary temple 5, the concave notch portion 20 of the distal end cam surface 18 is formed. The contact member 23 is fitted, the rearward projecting posture is elastically held, and when the temple body 6 is folded inward by approximately 90 °, the concave notch 21 of the inner cam surface 19 fits into the contact member 23, The folded state is held elastically and the temple body 6
Is either protruding rearward or folded inward.

At the time of folding inward, the cam surface 19
Extends obliquely toward the concave notch 21 in the direction in which the distance from the screw 17 decreases, so that when the temple body 6 is turned inward and the concave notch 20 comes off the contact member 23, the contact Member 23
Of the temple main body 6 by the action of the
Automatically folded.

As shown by the solid lines in FIGS. 5A and 5B, the auxiliary temple 5 is bifurcated in a state in which the temple main body 6 is held rearwardly projecting with respect to the auxiliary temple 5. The rear end surface 25 between the pieces 15, 15 and the upper and lower end surfaces 2 of the root portion of the second cam member 16 in the temple body 6
6 is formed so as to allow not only the inward bending of the temple body 6 with the screw 17 as a fulcrum but also the outward opening so as to allow the expanding movement to the outside,
In addition, a space is provided between the rear end surface 25 and the cam surface 18 so as to allow outward expansion.

Therefore, the temple main body 6 is similar to that shown in FIGS.
(B), it is possible to expand outward from the rearward protruding state shown by the solid line to the state where the rear end face 25 and the cam face 18 come into contact with each other, as shown by the dashed line in FIG.
The distance between the temple bodies 6 on both sides is variable from the solid line in FIG. 2 to the outside as shown by the dashed line in FIG. 2. The temple body 6 expanded to the outside is brought into contact with the contact member 23 pressed by the spring 24 and the cam. Due to the action with the concave notch 20 of the surface 18, FIG.
As shown by the solid line, the auxiliary temple 5 has an inward return elasticity to return to a substantially linear protruding posture rearward.

As described above, if a mechanism for expanding the temple body 6 outward is added to the connection portion where the temple body 6 is folded inward, the rear end face 25 and the cam face It is only necessary to set the relationship 18 slightly outwardly, and the structure can be simplified.

The spectacle frame of the present invention has the above-described structure. As shown in FIG. 1, if the auxiliary temples 5 on both sides are folded downward and the temple body 6 is folded inward, the lens frames 2, 2 The temple body 6 extends along the lower part of the frame, and the entire frame 1 is in a flat folded state.

At this time, the contact member 22 of the auxiliary temple 5
Passes through the projection 13 of the first cam member 7 and
a, the downward bending of the auxiliary temple 5 is maintained, and the second cam member 1 of the temple body 6 is held.
6 is engaged with the contact member 23,
The inward bending of the temple body 6 is maintained.

At the time of folding, if the auxiliary temple 5 is bent to a position where the contact member 22 does not exceed the projection 13 of the first cam member 7, the auxiliary temple 5 always has a rearward projecting elasticity. If the spectacle frame is stored in a thin case in this state, when the case is unlocked, the auxiliary temple 5 of the frame automatically projects backward and the case is pushed open, and the case is opened. The eyeglass frame can be easily taken out from inside.

When the frame 1 is worn, as shown in FIG. 2, the auxiliary temple 5 and the temple main body 6 are extended rearward so as to protrude, and the temple main body 6 has elasticity to expand outward. So it fits softly on the face and won't hurt even if worn for a long time.

[0031]

As described above, according to the present invention, the auxiliary temple is connected to the mounting piece provided on the lens frame so as to be freely foldable downward, and the temple body can be freely folded inward to the auxiliary temple. In the spectacle frame connected so that the auxiliary temple, the means for holding the rearward projecting posture of the auxiliary temple, and the means for maintaining the rearward projecting posture of the temple main body and the inward folding posture relative to the auxiliary temple in the auxiliary temple. Since the components are provided, some of the components of both holding means can be shared, the cost can be reduced by simplifying the structure and the number of components, and the assembling work can be simplified.

[Brief description of the drawings]

FIG. 1 is a front view showing a folded state of an eyeglass frame;

FIG. 2 is a plan view of an eyeglass frame;

FIG. 3 is a side view of the above.

FIG. 4 is a perspective view showing a main part of the above.

5 (A) is a partially cutaway front view showing, in an enlarged scale, a connection portion between a mounting piece, an auxiliary temple and a temple body, and FIG. 5 (B) is a partially cutaway plan view of the same.

FIG. 6A is a longitudinal sectional side view showing a bent state of an auxiliary temple, and FIG. 6B is a cross-sectional plan view showing a bent state of a temple body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Eyeglass frame 2 Lens frame 4 Mounting piece 5 Auxiliary temple 6 Temple main body 7 First cam member 9 Through hole 16 Second cam member 22, 23 Contact member 24 Spring

Claims (3)

[Claims] An auxiliary temple is provided at a rear end portion of a mounting piece provided at both ends of a lens frame so that the auxiliary temple can be freely bent downward from a rearward protruding state so as to elastically maintain a rearward protruding posture. And the temple body is connected to the rear end of the auxiliary temple so that the temple body can be freely protruded rearward and freely folded inward.
The cam member and the temple main body are provided with a second cam member, and the auxiliary temple is provided with a through-hole along the length direction. In the through-hole, a first abutment is made on the cam surface of the first cam member. A first contact member, a second contact member that contacts the cam surface of the second cam member, and a first contact member that presses the first contact member and the second contact member in a direction away from each other. And a spring that presses against the cam surface of the second cam member. The first cam member and the first abutment member elastically hold the rearward projecting posture of the auxiliary temple. An eyeglass frame, wherein the second abutting member elastically retains a rearwardly protruding posture and an inwardly bending posture of the temple body with respect to the auxiliary temple. 2. The spectacle frame according to claim 1, wherein the first cam member and the first contact member elastically hold a downward bending posture of the auxiliary temple. 3. A temple is provided between the cam surface of the second cam member and the end of the auxiliary temple in a state where the temple main body has a rearwardly protruding posture that is substantially linear with respect to the auxiliary temple. 3. The spectacle frame according to claim 1, wherein the temple main body can be pushed outward by an amount corresponding to the gap with respect to the auxiliary temple in a state where the main body is in a rearward projecting posture.