JP7440106B2 - Eyeglasses and their hinge structure - Google Patents

Description

The present invention relates to eyeglasses and their hinge structure.

BACKGROUND ART Conventionally, as a hinge structure for rotatably connecting an armrest member and a temple member in eyeglasses, the one shown in Patent Document 1 is known. This hinge structure is constructed by inserting a temple member with an insertion hole between the upper and lower sockets formed at the end of the endpiece and tightening it with a screw. The members are configured to be rotatable.

Japanese Patent Application Publication No. 2008-164646

By the way, in the conventional hinge structure as described above, the temple member and endpiece member are fixed by tightening screws from above and below at the connecting part, so as the temple member is repeatedly opened and closed, the screws gradually become loose. There is a problem in that the wearing feeling deteriorates.

The present invention has been made to solve the above problems, and its main object is to provide eyeglasses with a novel hinge structure that does not easily come loose even after repeated opening and closing.

That is, the eyeglasses according to the present invention include a pair of left and right lenses, an armouring member made of a metal wire connected to the outer end of each lens, and a metal armour member rotatably connected to the armouring member via a hinge structure. and a temple member made of a wire rod, and the hinge structure includes a body portion having a hole formed on a side circumferential surface, and a screw hole having a diameter larger than the body portion and extending in the axial direction formed on the top surface thereof. a screw member having a shaft core member having a head portion having a diameter of 10 mm, a body portion screwed into a screw hole of the shaft core member, a head portion having a diameter larger than that of the body portion; a wire end portion and one wire end portion of the temple member, one wire end portion of the endpiece member is inserted into the hole of the shaft core member, and the other wire end portion is inserted into the hole of the shaft core member. is sandwiched between the top surface of the head of the screw member and the seat surface of the head of the screw member, and the two wire ends are fixed by fastening the screw member to the shaft core member, and the two wire ends are fixed by fastening the screw member to the shaft member. The wire end portion of the member is characterized in that it is wound around a region of the side peripheral surface of the trunk of the shaft core member closer to the head than the hole.

With such a configuration, the screw member is used only to fix the wire end of the armouring member to the shaft core member, and the wire end of the temple member wrapped around the body of the shaft core member is Since the structure is such that no tightening stress is applied to the screw member, loosening of the hinge structure due to repeated opening and closing of the temple member can be prevented.

Further, in the eyeglasses, it is preferable that a spiral groove is formed on the side circumferential surface of the trunk of the shaft core member, and the wire end portion of the temple member is wound so as to be screwed into the spiral groove.
With such a configuration, by screwing the wire end of the temple member into the spiral groove, an appropriate amount of friction is created between the shaft core member and the temple member, and the temple member will not flop around on its own. You can prevent it from opening or closing.

Further, when the eyeglasses are opened from the folded state by rotating the temple members, the line ends of the temple members rotate along the helical groove of the shaft core member, so that the end portions of the temple members rotate along the axial direction. It is preferable that the temple member is moved so as to come into contact with the head of the shaft core member or the wire end of the armouring member inserted into the hole, thereby restricting the rotational movement of the temple member and bringing it into a fully open state.
With such a configuration, when the temple member is fully opened, a fastening force can be applied from above and below to the tip of the temple member by the head of the shaft core member or the wire end of the endpiece member and the spiral groove. This allows the temple member to be firmly fixed in the fully opened state.

In order to prevent the temple member from opening excessively beyond the expected fully open state, the other wire end of the armouring member should be aligned with the top surface of the head of the shaft core member and the screw member. It has a protruding part that protrudes from between the seat surface of the head, and when the temple member is fully opened, the line end of the temple member and the protruding part of the line end of the armoury member are in contact with each other. Preferably, it is configured to interfere.

Further, in the eyeglasses, the hole is formed on the side circumferential surface of the body of the shaft core member so as to face inward in the left-right direction, and the spiral groove formed on the side circumferential surface of the body is directed It is preferable that the directions of the screw grooves of the screw holes formed in the head are the same.
In this way, one wire end of the armor member can be inserted into the hole in the side circumferential surface of the body from the inside in the left-right direction, so rotation of the shaft member when folding the temple member can be restricted. On the other hand, by making the direction of the spiral groove formed on the side peripheral surface of the body and the direction of the threaded groove of the screw hole formed in the head the same, when opening the temple member, Rotation in the direction in which the shaft core member loosens with respect to the screw member can be restricted.

As for a specific configuration of the eyeglasses, it is preferable that the spiral grooves formed in the shaft core member of the right hinge structure and the left hinge structure have opposite directions.
In this way, when fully opened, the wire ends of both the right and left temple members can be made to contact the head of the shaft core member or the wire end of the endpiece member in the same way. , the right and left temple members in the fully open state can be fixed with the same level of force, further improving the wearing comfort.

In the eyeglasses, the spiral groove of the shaft core member has a fitting tolerance with the line end of the temple member screwed thereto, preferably 8 μm or less, more preferably 6 μm or less, still more preferably 3 μm or less, and Preferably, the thickness is 1 μm or less. Further, it is more preferable that the surface of the spiral groove is subjected to solid lubricant treatment.
In this way, the occurrence of galling between the wire end of the temple member and the spiral groove can be suppressed, so the temple member can be opened and closed smoothly, and damage to the spiral groove caused by opening and closing of the temple member can be prevented. I can do it.

Further, in the eyeglasses, the other wire end of the armor member surrounds the screw hole of the shaft core member between the top surface of the head of the shaft core member and the seat surface of the head of the screw member. Preferably, it is formed in a ring shape.
In this way, it is possible to increase the contact area between the top surface of the head of the shaft core member, the seat surface of the head of the screw member, and the wire end of the endpiece, and it is possible to securely clamp and fix it. become able to.

Further, as a mode in which the effects of the present invention are significantly exhibited, it is preferable that the glasses are of a rimless type.

According to the present invention configured in this way, it is possible to provide eyeglasses having a novel hinge structure that is difficult to loosen even when opened and closed repeatedly.

FIG. 1 is a perspective view showing the overall configuration of eyeglasses according to an embodiment. FIG. 2 is a plan view of the entire eyeglasses of the embodiment viewed from above. FIG. 3 is a plan view of the entire eyeglasses of the same embodiment as viewed from the left. FIG. 3 is a plan view of the entire eyeglasses of the embodiment viewed from the rear. FIG. 3 is a perspective view showing the configuration of the bridge member of the same embodiment. FIG. 3 is a plan view of the vicinity of the bridge member of the embodiment viewed from above. FIG. 3 is a plan view of the bridge member of the same embodiment viewed from the left. FIG. 3 is a plan view of the structure near the hinge structure of the left temple member of the same embodiment, viewed from above. FIG. 3 is a plan view of the configuration near the hinge structure of the left temple member of the same embodiment, viewed from the left. FIG. 3 is a plan view showing the right hinge structure of the same embodiment as viewed from the left. FIG. 7 is an exploded plan view showing the right hinge structure of the same embodiment. FIG. 3 is a perspective view showing the configuration of the shaft core member of the hinge structure of the same embodiment. FIG. 3 is a plan view illustrating the operation of the right hinge structure of the same embodiment.

<Overall configuration>
EMBODIMENT OF THE INVENTION Below, one Embodiment of the spectacles 100 based on this invention is described with reference to drawings.

The eyeglasses 100 of this embodiment are of a so-called rimless type (two-point type) that does not have a rim that supports the outer periphery of the lens 1. Specifically, as shown in FIGS. 1 to 4, the glasses 100 include a pair of left and right lenses 1, a bridge member 2 that connects the pair of lenses 1, and a pair of left and right lenses provided at the outer end of each lens 1. a pair of temple members 4 extending in the front-back direction from each of the armor members 3 to hold the temporal region of the wearer's head, and a pair of temple members 4 that rotatably connect each of the armor members 3 and each of the temple members 4. It has a hinge structure 5.

In this eyeglass 100, the bridge member 2, the endpiece member 3, and the temple member 4 are all made of metal wire rods. Specifically, each of the bridge member 2, the armrest member 3, and the temple member 4 is formed by bending a single wire at multiple locations. The wire rods constituting each of the bridge member 2, the armrest member 3, and the temple member 4 are made of the same metal material, for example, but not limited to, pure titanium or a titanium alloy. Note that the bridge member 2, the armor member 3, and the temple member 4 may be made of wire rods made of different metal materials.

(1) Lens 1
The lenses 1 of the eyeglasses 100 of this embodiment are not particularly limited in type and shape and may be of any type. The lens 1 may be, for example, a focusing lens, a progressive lens such as a bifocal lens, a near-near lens, or a near-near lens, or may be a spherical lens, an aspherical lens, or a double-sided aspherical lens. Further, the material of the lens 1 may be plastic or glass, and its surface may be subjected to various coating processes (for example, UV protection, scratch prevention, antireflection, etc.).

A connection hole for connecting the bridge member 2 and the armor member 3 is formed in each lens 1 so as to pass through the lens in its thickness direction. Specifically, a bridge connection hole 11 for connecting the bridge member 2 is formed near the inner (bridge side) end of each lens 1, and an armor is formed near the outer (endpiece side) end of each lens 1. A connecting hole 12 for connecting the member 3 is formed.

(2) Bridge member 2
The bridge member 2 is formed from a single wire, and is formed by bending the wire at a plurality of locations (approximately 20 locations in this case) along the length of the wire. As shown in FIGS. 5 to 7, this bridge member 2 includes a bridge portion 21 provided at the center and spanning between the left and right lenses 1, and a lens connection portion for connecting the bridge portion 21 to each lens 1. 22, and a nose pad holding part 23 for holding the nose pad 6 (Krings).

The bridge portion 21 has at its center an arch portion 21a having an arch shape that is convex toward the front. The arch portion 21a has a bilaterally symmetrical shape and is formed by bending the wire at a plurality of locations at approximately constant intervals along the length. By performing bending at a plurality of locations to form the arch portion 21a in this way, the strength of the bridge portion 21 can be improved by work hardening. From the viewpoint of improving the strength of the bridge portion 21, the interval between the bending processes in the arch portion 21a is preferably as short as possible, for example, preferably 2 mm or less, and preferably about 1 mm. Both ends of the arch portion 21a along the longitudinal direction of the wire are bent forward through a bending point 21b by bending. By bending both ends of the arch portion 21a in this manner, the deformation strength of the bridge portion 21 can be further improved.

The lens connecting portions 22 are formed at both ends of the bridge portion 21 . The lens connecting portion 22 is formed by bending a wire rod into a hairpin shape that projects forward. A forwardly projecting tip 22a of the lens connecting portion 22 is inserted into and held in a bridge connecting hole 11 formed in the lens 1, thereby connecting the bridge member 2 and each lens 1. Note that the tip portion 22a of the lens connecting portion 22 inserted into the bridge connecting hole 11 may be adhered to the lens 1 using an adhesive or the like.

The nose pad holding portions 23 are formed at both ends of the bridge member 2 along the longitudinal direction of the wire. Specifically, the nose pad holding portion 23 is formed into a ring shape by bending both ends of a wire rod, and the nose pad 6 is inserted into this ring portion and held.

(3) Armor member 3
The armor member 3 is formed from a single wire rod, and is formed by bending the wire rod at a plurality of locations (approximately 10 locations here) along the length of the wire rod. As shown in FIGS. 8 to 10, the armor member 3 has a lens connecting portion 31 formed in a hairpin shape that projects forward. Similar to the bridge member 2, this armouring member 3 is held such that the forwardly projecting tip of the lens connecting portion 31 is inserted into the armouring connecting hole 12 formed in the lens 1. Both ends (two wire ends 53 and 54) of the wire constituting the armor member 3 extend rearward from the lens connecting portion 31 and are connected to the temple member 4 via the hinge structure 5. .

(4) Temple member 4
Next, the structure of the temple member 4 will be explained with reference to FIGS. 2 to 4, 8 and 9. The temple member 4 is formed from a single wire rod, and is bent at multiple locations (approximately 40 locations in this case) along the length of the wire, as well as roller-processed along the length. It is formed by applying it partially. The temple member 4 has its base end 4a connected to the armouring member 3 via the hinge structure 5, and is configured to open and close by rotating the hinge structure 5 around the axis in a plane perpendicular to the vertical direction. ing. In the open state, the temple member 4 extends rearward from the base end 4a, and has a shape in which the distal end 4b contacts the temporal region behind the ear of the wearer. Hereinafter, the shape of the temple member 4 in the opened state of the eyeglasses 100 will be explained in order from the proximal end to the distal end.

The proximal side line end portion 41 of the temple member 4 connected to the hinge structure 5 protrudes from the hinge structure 5 inward in the left-right direction when viewed from the top and bottom, and then bends multiple times and extends outward in the left-right direction. It is approximately U-shaped. This wire end portion 41 extends to the outside of the hinge structure 5 and is connected to a front protrusion 42 described below.

On the distal side of the proximal side line end 41 of the temple member 4, a forward protrusion 42 is formed which is bent so as to protrude forward. The front protruding portion 42 is formed by bending a wire rod so as to form a hairpin shape when viewed from the left and right directions, and has a shape that stretches toward the front, then bends and extends toward the rear. are doing.

This front protrusion 42 is formed near the hinge structure 5, and specifically, is formed so as to be located outside the hinge structure 5 in the left-right direction. Further, here, the front protrusion 42 is formed so as not to protrude further forward than the hinge structure 5, and the protrusion end 42a of the front protrusion 42 is formed at the same position as the axial center of the hinge structure 5 in the front-rear direction. It is formed.

Further, on the distal end side of the front protruding part 42 of the temple member 4, there is a first step bent part 43 bent in a stepped manner so as to be displaced in the horizontal direction when viewed from the vertical direction, and a first stage bent part 43 that is bent in a stepped manner so as to be displaced in the vertical direction when viewed from the horizontal direction. A second stage bent portion 44 is formed which is bent in a stepped manner.

The first stage bent portion 43 is formed by bending the wire a plurality of times (here, twice) (also referred to as step bending or Z bending) when viewed from the top and bottom. The first bending portion 43 is provided with a first bending point 431 and a second bending point 432 in order from the proximal end side to the distal end side of the temple member 4. The wire rod extending rearward from the front protrusion 42 bends outward in the left-right direction at a first bending point 431 (in this case, diagonally backward outward), and then bends backward at a second bending point 432. It has a shape that bends. It can also be said that in this first stage bent portion 43, the wire rod is offset outward in the left-right direction. Further, this first stage bent portion 43 is formed outside the hinge structure 5 in the left-right direction, and more specifically, both the first bending point 431 and the second bending point 432 are formed outside the hinge structure 5. is formed.

The second stage bent portion 44 is formed by bending the wire a plurality of times (here, twice) (also referred to as step bending or Z bending) when viewed from the left and right direction. This second stage bent portion 44 is provided with a third bending point 441 and a fourth bending point 442 in order from the proximal end side to the distal end side of the temple member 4. The wire extending rearward (specifically, backward diagonally downward) from the front protrusion 42 is bent upward (in this case, rearward diagonally upward) at the third bending point 441, and then bends at the fourth bending point 441. At 442, the shape is bent toward the rear. It can also be said that the wire rod is offset upward in this second stage bent portion 44 . Here, the position of the fourth bending point 442 is set so as not to exceed the hinge structure 5 in the vertical direction.

Here, the first bending part 43 and the second bending part 44 are formed in a common wire part of the wire that constitutes the temple member 4, and are located between the first bending point 431 and the second bending point 432. A third bending point 441 and a fourth bending point 442 are located at . That is, the wire rod constituting the temple member 4 is formed so as to be displaced in the vertical direction by the second stage bending part 44 while being displaced outward at the first stage bending part 43 .

An inwardly curved portion 45 that curves inward in the left-right direction is formed on the distal end side of the first-stage bent portion 43 and the second-stage bent portion 44 in the temple member 4 . The inwardly curved portion 45 is formed by roll bending (feed bending) the wire so that it gently curves inward with a constant radius of curvature to fit the shape of the temporal region of the wearer. It is something that

Further, on the distal end side of the inwardly curved portion 45 of the temple member 4, a holding portion 46 is formed to sandwich and hold the temporal region behind the ear of the wearer from the left and right sides. This holding portion 46 is shaped by bending so that the tip of the temple member 4 faces inward and downward when viewed from the front and rear directions.

Specifically, the hold portion 46 includes a curved portion 461 bent inwardly and downwardly from the end of the inwardly curved portion 45 to draw an arc, and a straight portion 462 that extends straight to the tip of the temple member 4. and has. The curved portion 461 is formed by bending the wire at multiple locations along the longitudinal direction. Here, the curved portion 461 is formed by bending the wire at 28 locations at approximately constant intervals (for example, 0.5 mm or more and 2 mm or less, preferably about 1 mm).

(5) Hinge structure 5
As shown in FIGS. 10 to 12, the hinge structure 5 includes a body portion 511 in which a hole 51h (also referred to as a wire locking hole 51h) is formed in a side circumferential surface 51c, and a diameter larger than that of the body portion 511. A shaft core member 51 having a head 512 with a screw hole 51s formed in the top surface 51a thereof along the axial direction, a body portion 521 that is screwed into the screw hole 51s of the shaft core member 51, and the body portion 521. A screw member 52 having a head 522 having a larger diameter than the thread member 52, two wire end portions 53, 54 of the endpiece member 3, and one wire end portion 55 (proximal side wire end portion 41) of the temple member 4. It is composed of: In this hinge structure 5, one wire end 53 of the armouring member 3 is inserted into the wire locking hole 51h of the shaft core member 51, and the other wire end 54 is inserted into the top of the head 512 of the shaft core member 51. It is sandwiched between the surface 51a and the seat surface 52a of the head 522 of the screw member 52, and the two wire ends 53 and 54 are fixed by fastening the screw member 52 to the shaft core member 51. . The wire end portion 55 of the temple member 4 is located in a region (also referred to as a winding region 51r) set on the side peripheral surface 51c of the body portion 511 of the shaft core member 51 on the head 512 side (upper side) than the wire locking hole 51h. ), thereby allowing the temple member 4 to be opened and closed around the shaft core member 51.

The wire locking hole 51h is a blind hole (non-penetrating hole) formed in the side peripheral surface 51c of the body portion 511 along a direction perpendicular to the axial direction of the shaft core member 51, and constitutes the armouring member 3. The hole has a diameter that allows the wire to fit without wobbling. More specifically, the wire locking hole 51h is formed in the body portion 511 of the shaft core member 51 so as to open inward in the left-right direction. As a result, one wire end 53 of the armor member 3 is inserted into the wire locking hole 51h from the inside in the left-right direction, so that rotation of the shaft core member 51 when folding the temple member 4 can be restricted. It has become.

The other wire end portion 54 of the armouring member 3 is formed in a ring shape surrounding the screw hole 51s of the shaft core member 51 between the top surface 51a of the shaft core member 51 and the seat surface 52a of the screw member 52. It has a ring-shaped part. This annular portion is sandwiched and fixed between the top surface 51a of the shaft core member 51 and the seat surface 52a of the screw member 52 such that its center position coincides with the center position of the screw hole 51s.

In the winding region 51r of the body portion 511 of the shaft core member 51, a spiral groove 51g that spirally goes around the side circumferential surface 51c is formed. The wire end portion 55 of the temple member 4 is formed into a spiral shape, and is wound so as to be threaded into a spiral groove 51g formed in the body portion 511. Therefore, when the temple member 4 is opened or closed, the wire end portion 55 of the temple member 4 rotates along the spiral groove 51g of the shaft core member 51, thereby moving up and down along the axial direction. In the eyeglasses 100 of this embodiment, the right hinge structure 5 and the left hinge structure 5 have spiral grooves 51g formed in the shaft core member 51 in opposite directions, allowing the left and right temple members 4 to open and close. and these are designed to move up and down in the same direction. In this embodiment, the shaft core member 51 is provided so that its head 512 faces upward.

Further, in this shaft core member 51, the direction of the spiral groove 51g formed on the side circumferential surface 51c of the body portion 511 and the direction of the threaded groove of the screw hole 51s formed in the head 512 are made to be the same. When the temple member 4 is opened, rotation of the shaft member 51 in the direction in which the shaft core member 51 becomes loosened with respect to the screw member 52 can be restricted.

Further, the spiral groove 51g of the shaft core member 51 has a fitting tolerance with the wire end portion 55 of the temple member 4 screwed thereto, preferably 8 μm or less, more preferably 6 μm or less, still more preferably 3 μm or less, and even more preferably is formed to be 1 μm or less, and the surface of the spiral groove 51g is subjected to solid lubricant treatment.

In this hinge structure 5, when the temple member 4 is rotated and opened from the folded state, the line end portion 55 of the temple member 4 moves upward, and finally the head of the shaft core member 51 By contacting the seat surface 51b of the portion 512, the rotational movement of the temple member 4 is restricted and the temple member 4 is brought into a fully open state. In other words, the wire end portion 55 of the temple member 4 comes into contact with the seat surface 51b of the head 512 of the shaft core member 51 only in the fully open state. Further, the wire end portion 55 of the temple member 4 formed in a spiral shape contacts only the side circumferential surface 51c of the body portion 511 of the shaft core member 51 from the folded state to the fully open state. It is configured so as not to come into contact with the elements (specifically, the wire ends 53 and 54 of the armouring member 3 and the head 512 of the shaft core member 51).

Further, in this hinge structure 5, the other wire end portion 54 of the armouring member 3 has a protruding portion 54a that protrudes to the outside from between the top surface 51a of the shaft core member 51 and the seat surface 52a of the screw member 52. As shown in FIG. 13, in the fully open state, the wire end portion 55 of the temple member 4 and the protruding portion 54a of the wire end portion 54 of the armor member 3 are configured to contact and interfere with each other.

<Effects of this embodiment>
According to the eyeglasses 100 of the present embodiment configured in this way, the screw member 52 is used only to fix the wire end portion of the armor member 3 to the shaft core member 51, and Since the structure is such that no tightening stress of the screw member 52 is applied to the wire end portion 55 of the temple member 4 wound around the temple member 4, loosening in the hinge structure 5 due to repeated opening and closing of the temple member 4 can be prevented. can.

In addition, by screwing the wire end portion 55 of the temple member 4 into the spiral groove 51g, an appropriate amount of friction is created between the shaft core member 51 and the temple member 4, so that the temple member 4 can open and close without permission. You can avoid it. Moreover, when the temple member 4 is fully opened, the head 512 of the shaft core member 51 and the spiral groove 51g can apply a fastening force to the tip 4b of the temple member 4 from above and below, and the temple member 4 is fully opened. This allows it to be firmly fixed in place.

Furthermore, since one wire end portion 53 of the armouring member 3 can be inserted into the hole in the side peripheral surface 51c of the body portion 511 from the inside in the left-right direction, rotation of the shaft core member 51 when folding the temple member 4 is prevented. Can be restricted. On the other hand, by making the direction of the spiral groove 51g formed in the side circumferential surface 51c of the body portion 511 and the direction of the threaded groove of the screw hole 51s formed in the head 512 the same, the temple member 4, rotation of the shaft member 51 in the direction of loosening with respect to the screw member 52 can be restricted.

<Other embodiments>
Note that the present invention is not limited to the above embodiments.

For example, in the hinge structure 5 of the embodiment, when the temple member 4 is opened from the folded state, the wire end portion 55 contacts the seat surface 51b of the head 512 of the shaft core member 51, and its rotational movement is prevented. Although it was intended to be limited, it is not limited to this. In another embodiment, when the temple member 4 is opened, its wire end 55 moves downward and comes into contact with one wire end 53 of the armouring member 3 inserted into the wire locking hole 51h. The rotational movement thereof may be restricted.

Furthermore, in the hinge structure 5 of another embodiment, the shaft core member 51 may be provided so that its head 512 faces downward. Furthermore, in the hinge structure 5 of another embodiment, the helical groove 51g may not be formed in the body portion 511 of the shaft core member 51.

Furthermore, in the hinge structure 5 of another embodiment, the other wire end portion 54 of the armouring member 3 does not have the protruding portion 54a, and when the wire end portion 55 of the temple member 4 and the wire end portion 54 of the armouring member 3 are in the fully open state, It may be configured so that the end portion 54 does not interfere with the end portion 54.

Further, although the glasses 100 in the embodiment described above are of a so-called rimless type, the present invention is not limited thereto. Eyeglasses 100 in other embodiments may be of a type with rims. Furthermore, the glasses 100 of the embodiment are not limited to those intended to correct the vision of the wearer, but may be sunglasses intended to protect the eyes from ultraviolet rays.

In addition, it goes without saying that the present invention is not limited to the embodiments described above, and that various modifications can be made without departing from the spirit thereof.

100... Glasses 1... Lens 3... Endpiece member 4... Temple member 5... Hinge structure 51... Shaft member 511... Body part 512... Head 51h...・Hole (wire locking hole)
51s...Screw hole 52...Screw member 521...Body portion 522...Head 53...One wire end (endpiece)
54...Other wire end (endpiece)
55...Line end (temple)

Claims (10)

A pair of left and right lenses,
an armor member made of a metal wire connected to the outer end of each lens;
a temple member made of a metal wire rotatably connected to the armor member via a hinge structure,
The hinge structure is
a shaft core member having a body portion having a hole formed on a side peripheral surface; and a head portion having a diameter larger than the body portion and having a screw hole formed along the axial direction on its top surface;
a screw member having a body portion that is screwed into the screw hole of the shaft core member, and a head portion having a larger diameter than the body portion;
two wire end portions that the armor member has;
one wire end portion of the temple member;
One wire end of the armor member is inserted into the hole of the shaft core member, and the other wire end is between the top surface of the head of the shaft core member and the seat surface of the head of the screw member. and the two wire ends are fixed by fastening the screw member to the shaft core member,
The eyeglasses wherein a wire end of the temple member is wrapped around a region closer to the head than the hole in the side circumferential surface of the body of the shaft core member. 2. The eyeglasses according to claim 1, wherein a spiral groove is formed on the side circumferential surface of the body of the shaft core member, and the wire end portion of the temple member is wound so as to be threaded into the spiral groove. When the temple member is rotated and opened from the folded state, the wire end portion of the temple member rotates along the spiral groove of the shaft core member and moves along its axial direction. 3. The eyeglasses according to claim 2, wherein the temple member is brought into a fully open state by being in contact with the head of the shaft member or the wire end of the armouring member inserted into the hole, thereby restricting the rotational movement of the temple member. The other wire end of the armor member has a protruding portion that protrudes from between the top surface of the head of the shaft core member and the seat surface of the head of the screw member,
4. The eyeglasses according to claim 3, wherein when the temple member is in a fully open state, the wire end of the temple member and the protruding portion of the wire end of the armor member contact and interfere with each other. The hole is formed on a side circumferential surface of the body of the shaft member so as to face inward in the left-right direction,
According to any one of claims 2 to 4, the direction of the spiral groove formed on the side circumferential surface of the body and the direction of the screw groove of the screw hole formed in the head are the same. The glasses mentioned. 6. The eyeglasses according to claim 2, wherein the right hinge structure and the left hinge structure have spiral grooves formed in the shaft member facing in opposite directions. The eyeglasses according to any one of claims 2 to 6, wherein the surface of the spiral groove is subjected to solid lubricant treatment. The other wire end of the armor member forms a ring shape surrounding the screw hole of the shaft core member between the top surface of the head of the shaft core member and the seat surface of the head of the screw member. Eyeglasses according to any one of claims 1 to 7, which are formed. The eyeglasses according to any one of claims 1 to 8, which are of a rimless type. Eyeglasses comprising a pair of left and right lenses, an armouring member made of a metal wire connected to an outer end of each lens, and a temple member made of a metal wire connected to the armouring member, wherein the armouring member and the temple A hinge structure rotatably connecting a member,
a shaft core member having a body portion having a hole formed on a side peripheral surface; and a head portion having a diameter larger than the body portion and having a screw hole formed along the axial direction on its top surface;
a screw member having a body portion that is screwed into the screw hole of the shaft core member, and a head portion having a larger diameter than the body portion;
two wire end portions that the armor member has;
one wire end portion of the temple member;
One wire end of the armor member is inserted into the hole of the shaft core member, and the other wire end is between the top surface of the head of the shaft core member and the seat surface of the head of the screw member. and the two wire ends are fixed by fastening the screw member to the shaft core member,
A hinge structure in which a wire end portion of the temple member is wrapped around a region closer to the head than the hole on the side circumferential surface of the trunk portion of the shaft core member.