JPH0755531Y2 - Glasses hinges - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in eyeglass hinges.

[0002]

2. Description of the Related Art A typical prior art of an eyeglass frame 1 is shown in FIG.
As shown in FIG. 2, a frame hinge member 5 in which the end pieces 3 are integrally attached to both ends of the lens frame 2 by brazing or the like, and the base end of the temple 4 are formed. The arm hinge member 6 that is integrally attached to the portion is joined using a hinge shaft screw 7 to form a hinge 8, and the temple 4 can be freely folded in the direction in which the temple 4 comes close to the lens frame 2 (inside of the eyeglasses) via the hinge 8. It is said that.

Means for integrally assembling the base end portion of the temple 4 to the arm hinge member 6 is shown, for example, in a sectional view of FIG. 8 and an exploded perspective view of FIG.

According to FIGS. 8 and 9, even if a strong pressure A is applied from the side to the spectacle frame 1 with the spectacles applied, the temple 4 expands to the outside of the spectacles and the spectacle frame 1 is deformed. A resilient urging member 12 is provided so as not to be damaged. The elastic urging member 12 is housed in the housing hole 10 of the case 9 fixed to the base end of the temple 4 together with a part of the arm hinge member 6 to which it is attached.
That is, the slit-shaped sliding space 1 of the arm hinge member 6
First, the sliding body 13 that is movable in the longitudinal direction of the sliding space 11
A guide pin 14 protruding from the side surface of the sliding body 13,
A resilient urging member 12 including a coil spring 15 that is mounted on the guide pin 14 is mounted. The sliding body 13 is provided with a pin hole 16 that is orthogonal to the inner surface of the temple 4. The pin hole 16 and the pin hole 1 provided in the case 9
The arm hinge member 6 and the temple 4 are assembled via the case 9 by fitting the fixing pin 18 to the armature 7. Pin 18
Alternatively, a screw (not shown) may be screwed in and fixed.

[0005]

According to the above-mentioned structure of the eyeglass hinge, the fixing pin 18 or the screw is used to position the arm hinge member 6 in the case 9. When this fixing pin or screw is fitted and inserted, the coil spring 15 must be compressed so that the pin hole 16 of the sliding plate 13 matches the pin hole 17 of the case 9, and the assembling is extremely complicated. It is troublesome.

There is also a structure as shown in FIG. 10 which can be assembled without using the fixing pin or screw. According to this assembly structure, in FIG. 10, the accommodating hole 10 of the case 9 has an elastic urging member 12 including a guide pin 14 and a coil spring 15, and a lock groove formed in a part of an inner wall of the accommodating hole 10. Lock piece 20 engageable with 19
And are housed. According to this structure, the lock piece 20
Although one end of the coil is engaged with the lock groove 19 to be prevented from being pulled out, the lock piece 20 and the guide pin 14 which are separate bodies must be inserted into the accommodation hole 10 while compressing the coil spring 15, respectively. Since the spring 15 urges the lock piece 20 and the guide pin 14 in the direction of pushing the lock piece 20 and the guide pin 14 from each other, the assembling is extremely difficult and requires skill and time.

The present invention solves such a problem, has a simple structure, and can be assembled with the arm hinge member and the temple with one touch without using fixing pins or screws unlike the prior art, and An object of the present invention is to provide a spectacle hinge which can easily adjust the elastic force for preventing the temple from expanding outside the spectacles.

[0008]

SUMMARY OF THE INVENTION According to the present invention, (a) a frame hinge member 24 fixed to the tip of an armature 22, and (b) a frame hinge member 24 rotatably via a hinge shaft screw 26. The arm hinge member 25 having a proximal end portion assembled therein, having a screw hole 25c, and having a rectangular cross section perpendicular to the axis of the distal end portion 25b in which the screw hole 25c is formed, and (c) the set screw 31. Shaft portion 3 having a screw portion 31a which is screwed into the screw hole 25c with an axis line perpendicular to the hinge shaft screw 26 and whose screwing length is adjustable.
1b and the arm hinge member 25 of the shaft portion 31b, the set screw 31 having a head portion 31b having a diameter larger than that of the shaft portion 31c at the end portion on the opposite side in the axial direction, and A space ring 33 through which the shaft portion 31b of the screw 31 is relatively displaced and slidably inserted; and (e) a set screw 31 is slidably inserted through relative displacement.
A coil spring 32, both ends of which are interposed between the head portion 31c and the space ring 33, and (f) the lock piece 28, which are arranged to face each other with respect to the axis 47 of the lock piece 28, and outwardly. A pair of arcuate portions 45, 46 formed in a convex arcuate shape, and arranged between the pair of arcuate portions 45, 46 in the circumferential direction, connected to these arcuate portions 45, 46, and more than the arcuate portions 45, 46. Planar first and second peripheral planes 28 protruding outward in the radial direction
c, 28d, and the first end surface 28 on the arm hinge member 25 side
a is the arm hinge member 2 as it moves away from the temple 23.
5, the lock claw portion 34 is formed so as to be inclined with respect to the axis 47 of the lock piece 28 so that the crossing angle between the first end surface 28a and the first circumferential plane 28c is an acute angle. The second end face 28b on the side opposite to the arm hinge member 25 in the direction of the axis 47 of 28 is the first end face 28a.
A lock piece 28 formed in parallel with the case 23, and (g) a case 29 fixed to the base end of the temple 23, extending in the longitudinal direction of the temple 23 and opening facing the frame hinge member 24. The accommodation hole 30 has a housing hole 30 for storing the head portion 31c of the set screw 31, the space ring 33, the coil spring 32, and the lock piece 28.
Circular hole 30a for accommodating a pair of circular arc portions 45, 46
And the arm hinge member 2 is formed from the open end of the circular hole 30a to a midway position 30c in the longitudinal direction of the circular hole 30a, and extends from the circular hole 30a to the radial outside of the circular hole 30a.
The square hole 3 in which the distal end portion 25b of 5 and the first and second peripheral planes 28c, 28d of the lock piece 28 are displaced in the longitudinal direction of the temple 23 and slidably fitted therein.
0b and the hinge shaft screw 2 at a position axially outward of the circular hole 30a with respect to the intermediate position 30c of the circular hole 30a.
6 has a circular lock hole 36 penetrating therethrough, and the lock hole 36 is a semi-circular lock groove facing the square hole 30b at a position away from the temple 23 of the square hole 30b. The lock groove 35 includes a case 20 in which the lock claw portion 34 of the lock piece 28 is fitted and locked in the lock groove 35, and the distal end portion of the armature 22 and the proximal end portion of the temple 23 are naturally formed. It is a spectacle hinge that is characterized by being butted in the state.

[0009]

According to the present invention, the first end surface 28 of the lock piece 28 is inclined with respect to the axis 47 of the lock piece 28 so as to approach the arm hinge member 25 as it moves away from the temple 23, The other second end face 28b is formed parallel to the first end face 28, as will be clearly shown in FIGS. 1, 3 and 4 described later, so that the spring force of the coil spring 32 is formed. When acting on the second end surface 28b via the, the pair of arcuate portions 45 and 46 of the lock piece 28 are in the circular hole 30a of the accommodation hole 30 of the case 29, and are located radially outward of the arcuate portions 45 and 46. Projecting planar first and second peripheral planes 28
The c and 28d are fitted into the square hole 30b of the accommodation hole 30 and moved, and the lock claw portion 34 in which the crossing angle between the first end surface 28a and the first peripheral plane 28c is an acute angle is provided in the case 29 with respect to the lock hole 36. When the lock claw 34 reaches the semicircular lock groove 35, the lock claw portion 34 moves into the lock groove 35,
It is fitted and locked by the spring force of 2. Therefore, the temple 23 to which the case 29 is fixed is the arm hinge member 2
5, and thus assembled to the frame hinge member 24 and the endpiece 22.

[0010]

1 is a sectional view showing an embodiment of the eyeglass hinge of the present invention, FIG. 2 is a sectional view taken along the section line II--II of FIG. 1, and FIG. 3 is an exploded perspective view. is there.

As shown in these figures, the eyeglass hinge 21
Is the tip of the endpiece 22, inside the glasses (upper side in FIG. 1)
A frame hinge member 24 fixed to the surface, an arm hinge member 25 assembled with the frame hinge member 24 by a hinge shaft screw 26,
An elastic urging member 27 and a lock piece 28 which are integrally attached to the arm hinge member 25, and the elastic urging member 2
7 and the lock piece 28 have a housing hole 30 that can be housed therein, and includes a case 29 fixed to the inner surface of the glasses of the base end portion of the temple 23.

The frame hinge member 24 has its base surface fixed to the end piece 2.
2 is brazed and fixed, and the base of the case 29 is also brazed and fixed to the inner surface 23a of the temple 23.

The frame hinge member 24 and the arm hinge member 25 are assembled so that their shaft holes 24a and 25a are aligned with each other, and a hinge shaft screw 26 is screwed therein so as to be rotatable within a predetermined angle range around the shaft screw.

The elastic urging member 27 is attached to the distal end of the arm hinge member 25 on the side opposite to the shaft hole 25a in the longitudinal direction.
The elastic urging member 27 is slidable on the set screw 31 screwed onto the arm hinge member 25 and the set screw 31, and is externally fitted in order from the head side of the set screw 31 toward the arm hinge member 25. And a space ring 33.

The set screw 31 has an arm hinge member 2
The lock piece 28 is externally fitted to the set screw 31 in a gap state at a position in contact with the arm 5, and is attached integrally with the arm hinge member 25. As shown in FIG. 3, this lock piece 28 is made of a trapezoidal cylindrical body, and has front and rear end faces 28 orthogonal to its axis.
a, 28b and these front and rear end faces 28a, 28b,
It has two parallel planes 28c and 28d which are diagonally intersected.

This lock piece 28 has a set screw 3
When attached to 1, the first end surface 28a on the front side (arm hinge member 25 side), the second end surface 28b on the rear side (space ring 33 side), and the both end surfaces 28a, 28b are obliquely intersected, A first peripheral plane 28c facing the inner side of the glasses and a second peripheral plane 28d facing the temple 23 are formed, and the first end surface 2
The intersection angle between 8a and the first circumferential plane 28c is an acute angle, and the piece corner portion formed by these two surfaces is a lock claw portion 34.

Inside the spectacles of the case 29, a circular lock hole 36 is formed so as to form a semicircular lock groove 35 with respect to the inner wall surface of the accommodation hole 30 formed in a flat shape. In the left-right direction).

The accommodating hole 30 is composed of an elongated hole having a cross-sectional shape corresponding to the lock piece 28, and has a size such that the lock piece 28 swings in the axial direction but does not rotate around the axial line. To further describe the configuration, the arm hinge member 25 has a tip portion 25b, a screw hole 25c is formed in the tip portion 25b, and the cross section perpendicular to the axis of the tip portion 25b has a rectangular shape. , Apparent from FIGS. 3 and 4. The set screw 31 has a shaft portion 31b and a head portion 31c. The shaft portion 31b has a screw hole 25c and a hinge shaft screw 2
6 has a screw portion 31a which is screwed with an axis perpendicular to 6 and whose screwing length is adjustable. The head portion 31c is formed with a larger diameter than the shaft portion 31b at the end portion of the shaft portion 31b on the side opposite to the arm hinge member 25 in the axial direction (right side in FIG. 1). The space ring 33 has a cylindrical shape. The shaft portion 31b of the set screw 31 is relatively displaced and the space ring 33 is slidably inserted. The coil spring 32 is slidably inserted so that the set screw 31 is relatively displaced, and both ends of the coil spring 32 are attached to the head 31c and the space ring 3.
And 3 are intervened. The lock piece 28 includes a pair of arcuate portions 45 and 46 and a flat first and second circumferential flat surface 28.
c, 28d. The arc portions 45 and 46 are opposed to each other with respect to the axis line 47 of the lock piece 28, that is, the axis line 4
It is arranged on both sides of 7 and is formed in an outwardly convex arc shape. The first and second peripheral planes 28c and 28d are arranged between the circular arc portions 45 and 46 in the circumferential direction, and these circular arc portions 45 and
46, and projects radially outward (upward and downward in FIG. 2) from the arcuate portions 45, 46. Lock piece 2
The first end surface 28 a of 8 is on the arm hinge member 25 side, and is inclined with respect to the axis 47 of the lock piece 28 so as to approach the arm hinge member 25 as it moves away from the temple 23. As a result, the first end face 28a and the first peripheral plane 28
The lock claw portion 34 having an acute intersection angle with c is formed as described above. Second end face 28b of lock piece 28
Is the arm hinge member 25 in the direction of the axis 47 of the lock piece 28.
It is formed on the side opposite to the first end surface 28a and parallel to the first end surface 28a, which means that FIG. 1, FIG. 3 and FIG.
Is clear from. The case 29 is fixed to the base end portion of the temple 23, is formed to extend in the longitudinal direction of the temple 23, and is opened to face the frame hinge member 24.
Have. The storage hole 30 includes a circular hole 30a and a square hole 3a.
With 0b. The circular hole 30a includes the head portion 31c of the set screw 31, the space ring 33, and the coil spring 32.
And a pair of arc portions 45 and 46 of the lock piece 28 are accommodated. The rectangular hole 30b is formed from the open end of the circular hole 30a to a midway position 30c in the longitudinal direction of the circular hole 30a.
The square hole 30b is formed from the circular hole 30a to the circular hole 30a.
Extending radially outward of. The square hole 30b is used for the arm hinge member 2
5 and the first and second of the lock piece 28
The peripheral planes 28c and 28d are displaced in the longitudinal direction of the temple 23 and slidably fitted therein and housed. A circular lock hole 36 is also formed through the case 29. The lock hole 36 has an axis parallel to the hinge shaft screw 26 at a position axially outward (leftward in FIG. 1) of the circular hole 30a with respect to the intermediate position 30c of the circular hole 30a.
The lock hole 36 is a semicircular lock groove 3 facing the square hole 30b at a position far away from the temple 23 of the square hole 30b.
Have 5. In this lock groove 35, the lock piece 28
The lock claw portion 34 is fitted and locked as described above. The tip of the armature 22 and the base of the temple 23 are
In a natural state, that is, in a state in which the glasses are put on, it is a butt.

FIG. 4 is a sectional view showing the procedure of assembling the eyeglass hinge 21 using such parts and members, and FIG.
Will be described with reference to the sectional view of FIG. As shown in these drawings, the set screw 31, the coil spring 32, and the space ring 3 are
3, the lock piece 28 is attached in this order, and the set screw 31
Screw portion 31a (see FIG. 3) is screwed into a screw hole 31d (see FIG. 1) provided in the arm hinge member 25. When the lock piece 28 is mounted, the lock claw portion 34 is arranged so as to face the arm hinge member 25 and be located inside the glasses. In this state, as shown in FIGS. 4 and 5, the first peripheral plane 28c and the second peripheral plane 28d of the lock piece 28 are maintained in a posture parallel to the axis of the set screw 31. On the other hand, the first
The end surface 28a and the second end surface 28b are oblique to the set screw 31.

Subsequently, by inserting a case 29 with a temple so as to cover the lock piece 28 and the elastic urging member 27, the lock piece 28 is released from the arm hinge member 25.
And the space ring 33, the first end surface 28
a, the second end surface 28b is urged in a state of being orthogonal to the axis of the set screw 31, and the case 29 is still squeezed so that the lock groove 35 reaches the front end of the lock piece 28 and reaches a state where it can be assembled. The lock claw portion 34 of the lock piece 28 projects outward perpendicular to the axis of the piece, fits in the lock groove 35, and is locked and fixed. Due to this locking,
As shown in FIG. 5, the tip end of the armature 22 and the base end of the temple 23 come into contact with each other, and normal assembly is achieved.

According to the eyeglass hinge 21 of the present invention, the arm hinge member 25 and the temple 23 are assembled by the elastic urging member 2.
7 and the arm hinge member 2 to which the lock piece 28 is attached
5 can be achieved by simply inserting the case 29 so as to cover it.

In the structure of the eyeglass hinge 21 of the present invention,
As shown in the cross-sectional view of FIG. 6, even when pressure of arrow A is applied to the spectacle frame 1 from the outer side of the spectacles, the coil spring 32
By the operation of, the temple 23 is elastically expanded outwardly of the eyeglasses, so that the eyeglass frame is not deformed and the contact point P between the tip end of the armature 22 and the base end of the temple 23 is not damaged.

If a conical pin is inserted into the lock hole 36 to disengage the lock groove 35 and the lock claw 34 from each other, the arm hinge member 25 and the case 29 can be easily disassembled even after the assembling. Since the elastic biasing member 27 can be detached from the case 29, the elastic biasing member 27 can be adjusted by adjusting the screw length of the set screw 31.
It is possible to adjust the resilience of the.

[0024]

[0025]

According to the present invention, the first end surface 28a of the lock piece 28 moves away from the temple 23,
That is, as it goes up in FIG. 1, FIG. 3 and FIG.
It is inclined with respect to the axis 47 of the lock piece 28 so as to approach the arm hinge member 25, the second end surface 28b is formed parallel to this first end surface 28a, and this second end surface 28b is a space. Coil spring 32 through ring 33
Elastically pressed by the first of the lock pieces 28
And the second circumferential planes 28c and 28d are the square holes 3 of the case 29.
By inserting the case 29 into the arm hinge member 25 in a state where the lock claw portion 34 of the lock piece 28 is fitted in the lock groove 35 of the case 29, the lock claw portion 34 of the lock piece 28 is fitted in the lock groove 35 of the case 29. It is then stopped and thus the installation is very easy. Further, according to the present invention, the distal end portion 25b in which the screw hole 25c of the arm hinge member 25 is formed.
Has a rectangular cross section perpendicular to its axis, and the tip end 25b and the first and second peripheral planes 28c, 28d of the lock piece 28 are provided in the square hole 30b of the housing hole 30 of the case 29.
And are fitted and housed, and the lock claw portion 34 of the lock piece 28 is fitted and locked in the lock hole 36 penetrating the case 29, whereby the arm hinge member 25
The relative angular displacement of the case 29 and the temple 23 with respect to the longitudinal axis of the case 29 is prevented, and the glasses can be easily attached to the face.

In the eyeglass hinge of the present invention, since the elastic force of the elastic biasing member can be adjusted by adjusting the screwing length of the set screw, the elastic force appropriate for the pressure from the outer surface of the eyeglass can be obtained. It can be counteracted, the eyeglass frame is not overpowered, and the contact between the tip of the endpiece and the base of the temple is not damaged.

Particularly, according to the eyeglass hinge of the present invention, it is not necessary to fix the arm hinge member and the temple with a case by using a fixing pin or a screw member, as compared with the prior art. Since the space ring, the coil spring and the lock piece are previously attached to the arm hinge member integrally with the set screw, simply by inserting the case into the arm hinge member,
It can be easily assembled with one touch, without requiring skill, and does not require high precision parts.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along the section line II-II in FIG.

FIG. 3 is an exploded perspective view of an embodiment.

FIG. 4 is a cross-sectional view showing an assembling operation according to an embodiment.

5 is a sectional view taken along the section line VV in FIG.

FIG. 6 is a cross-sectional view showing an operating state by an external force.

FIG. 7 is a perspective view of an eyeglass frame.

FIG. 8 is a sectional view of a conventional eyeglass hinge.

FIG. 9 is an exploded perspective view of a conventional eyeglass hinge.

FIG. 10 is a cross-sectional view of another conventional eyeglass hinge.

[Explanation of symbols]

 21 Glasses Hinge 24 Frame Hinge Member 25 Arm Hinge Member 27 Resilient Biasing Member 28,38 Lock Piece 29,39 Case 30,40 Housing Hole 34,41 Lock Claw 35,37 Lock Groove

Claims (1)

[Scope of utility model registration request] 1. A frame hinge member 24 fixed to a tip portion of an end piece 22, and a base end portion rotatably attached to the frame hinge member 24 via a hinge shaft screw 26. An arm hinge member 25 having a screw hole 25c and having a rectangular cross section perpendicular to the axis of a tip portion 25b in which the screw hole 25c is formed, and (c) a set screw 31, wherein the screw hole 25c A shaft portion 31b having a screw portion 31a which is screwed with an axis line perpendicular to the hinge shaft screw 26 and whose screwing length can be adjusted, and an arm hinge member 25 of the shaft portion 31b are arranged in the axial direction. A set screw 31 having a head portion 31b having a larger diameter than the shaft portion 31c at an end on the opposite side, and (d) a cylindrical shape, and the shaft portion 31b of the set screw 31 is relatively displaced and slidable. (E) Set screw 31 is displaced so that it can slide relative to the space ring 33 Then
A coil spring 32, both ends of which are interposed between the head portion 31c and the space ring 33, and (f) the lock piece 28, which are arranged to face each other with respect to the axis 47 of the lock piece 28, and to the outside. A pair of arcuate portions 4 formed in a convex arcuate shape
5 and 46 and the pair of circular arc portions 45 and 46 arranged in the circumferential direction, which are continuous with these circular arc portions 45 and 46, and which are flat first protruding radially outward from the circular arc portions 45 and 46. And the second circumferential planes 28c and 28d, and the first end surface 28a on the arm hinge member 25 side is closer to the arm hinge member 25 as it moves away from the temple 23 with respect to the axis 47 of the lock piece 28. A lock claw portion 34 is formed which is inclined and has a sharp crossing angle between the first end surface 28a and the first circumferential plane 28c, and is formed on the opposite side of the arm hinge member 25 in the direction of the axis 47 of the lock piece 28. The second end surface 28b is a lock piece 28 formed in parallel with the first end surface 28a, and (g) a case 29 fixed to the base end portion of the temple 23, which extends in the longitudinal direction of the temple 23. And frame It has a housing hole 30 which opens to face the turn member 24, the accommodating hole 30, and the head 31c of the screw 31, the space ring 33
A circular hole 30a for accommodating the coil spring 32, the pair of arc portions 45, 46 of the lock piece 28, and a circular hole 30a formed from the opening end of the circular hole 30a to an intermediate position 30c in the longitudinal direction of the circular hole 30a and having a circular shape. First end and second end of the lock piece 28 and the tip end portion 25b of the arm hinge member 25 extending from the hole 30a outward in the radial direction of the circular hole 30a.
A square hole 30b in which the circumferential planes 28c and 28d are displaced in the longitudinal direction of the temple 23 so as to be slidably fitted and housed.
And has a circular hole 30a that is larger than the intermediate position 30c of the circular hole 30a.
A circular lock hole 36 having an axis parallel to the hinge shaft screw 26 is provided at a position outward in the axial direction of, and the lock hole 36 is located at a position away from the temple 23 of the square hole 30b. There is a semicircular lock groove 35 facing the square hole 30b, and the lock claw portion 3 of the lock piece 28 is provided in the lock groove 35.
4 includes a case 20 in which 4 is fitted and locked, and the distal end of the armature 22 and the proximal end of the temple 23 are butt-jointed in a natural state.