JP2011150040A - Spectacles frame member and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spectacles frame member which makes design-adding processing easy and is excellent in strength and durability; and also provide a method for manufacturing the same. <P>SOLUTION: The spectacles frame member 10 includes a plurality of members having different elasticities which are contiguous to each other to form one united boy. In addition, the members concerned are joined up together by frictional joining or laser joining in the spectacles frame member 10. For example, the spectacles frame member 10 includes a temple member 1 and a modern member 2 which is contiguous to the temple member 1. In this case, the elasticity of the temple member 1 is different from the elasticity of the modern member 2, and the temple member 1 and the modern member 2 are joined together by means of the frictional joining or the laser joining to form one united body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a spectacle frame member and a manufacturing method thereof.

In general, a single material is used for the spectacle frame member.
However, the eyeglass frame member using a single material has insufficient fit depending on the wearer. That is, when the elasticity of the spectacle frame member is small, the spectacle frame tightens the head, and when the elasticity of the spectacle frame member is large, the spectacle frame is easily detached.

In contrast, eyeglass frames with improved fit have been developed.
For example, a spectacle frame in which the cross-sectional area in the length direction is changed so as to have a diameter that produces springiness and a diameter that does not produce springiness is known (for example, see Patent Document 1).
In addition, a spectacle frame in which the bending rigidity is changed stepwise is known (for example, see Patent Document 2). Such a spectacle frame is produced by engaging (fitting) a front piece and a rear piece.

JP 2004-246296 A JP 2007-101975 A

However, the spectacle frame described in Patent Document 1 has insufficient strength at a portion having a diameter that produces springiness.
The eyeglass frame described in Patent Document 2 has a drawback in that since the members whose bending rigidity is changed in stages are fitted together by crimping, the fitting portion that cannot be processed is large, and the width of the design is limited. In addition, since it is bonded by brazing, the connectivity is insufficient, and there is a risk that the pieces will come off. In particular, repairing is difficult if the piece comes off after the wax has hardened.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a spectacle frame member that is easy to process for imparting a design, has excellent strength, and has excellent durability, and a method for manufacturing the same.

  The present inventors have intensively studied to solve the above problems, and unexpectedly solve the above problems by diverting friction bonding or laser bonding to a spectacle frame member and integrating members having different elasticity. The present inventors have found that the present invention can be accomplished and have completed the present invention.

  That is, the present invention resides in (1) a spectacle frame member in which a plurality of members having different elasticity are continuously integrated, and the members are bonded to each other by friction bonding or laser bonding.

  The present invention resides in (2) the spectacle frame member according to (1) described above, wherein the plurality of members include a temple member and a modern member continuous with the temple member, and is used for an ear-hook portion of spectacles.

  The present invention resides in (3) the spectacle frame member according to the above (2), wherein the elasticity of the temple member is larger than the elasticity of the modern member.

In the present invention, (4) the temple member and the modern member are made of a titanium alloy member,
The eyeglass frame member according to the above (2), wherein the elasticity of the temple member is 1% or more and the elasticity of the modern member is less than 1%.

  In the present invention, (5) the temple member includes a first temple member and a second temple member, and the elasticity of the second temple member is greater than the elasticity of the first temple member, and the first temple member The eyeglass frame member according to any one of the above (2) to (4), in which the second temple member and the second temple member are integrated by friction bonding or laser bonding.

  The present invention resides in (6) the eyeglass frame member according to (5), wherein the elasticity of the second temple member is 2% or more and the elasticity of the first temple member is 1% or more and less than 2%.

  The present invention resides in (7) the eyeglass frame member according to (5) or (6), wherein the temple member is integrated in the order of the second temple member, the first temple member, and the second temple member. .

  The present invention resides in (8) the spectacle frame member according to (1) described above, wherein the plurality of members includes a frame member and a bridge member continuous with the frame member, and is used for a front portion of the spectacles.

  The present invention resides in (9) the spectacle frame member according to the above (1) used for a pad arm.

  The present invention is (10) the method for manufacturing a spectacle frame member according to any one of (1) to (9) above, wherein titanium alloy members having different elasticity are integrated by friction bonding or laser bonding, It exists in the manufacturing method of the spectacles frame member which gave the swaging process or the press process.

  The present invention is (11) the method for manufacturing a spectacle frame member according to any one of (1) to (9) above, wherein titanium alloy members having different elasticity are integrated by friction bonding or laser bonding, It exists in the manufacturing method of the spectacles frame member which gave the punching process after giving a press work.

Since the spectacle frame member of the present invention is formed by integrating a plurality of members having different elasticity by friction bonding or laser bonding, the bonded portion becomes extremely small. For this reason, the process for design provision becomes easy.
Moreover, since it joins by the metal fusion of members, it is excellent also in durability while being excellent in intensity | strength.

For example, when an eyeglass frame member is used for an ear hook composed of a temple member and a modern member, the elasticity of the temple member and the modern member is made different so that the eyeglass frame can be fitted to the face. It is possible to simultaneously perform the function of fixing the spectacle frame to the position (preventing it from coming off).
Specifically, by making the elasticity of the temple member larger than the elasticity of the modern member, it is possible to fit the temple member to the face and simultaneously fix the modern member to the face. In the eyeglass frame member, for example, even when the diameter of the modern member in the longitudinal direction is reduced, the strength can be improved by reducing the elasticity of the modern member.

Therefore, the spectacle frame using the spectacle frame member has an excellent fit.
Moreover, the spectacle frame member is easy to manufacture, and has excellent strength and durability. The elasticity of the temple member is preferably 1% or more, and the elasticity of the modern member is preferably less than 1%.

In the spectacle frame member of the present invention, the temple member is composed of the first temple member and the second temple member, and the elasticity of the second temple member is larger than the elasticity of the first temple member. Since the elasticity can be adjusted among the temple members, the fit can be further improved.
Further, for example, even when the diameter of the first temple member in the length direction is reduced, the strength is excellent by reducing the elasticity of the first temple member. The elasticity of the second temple member is preferably 2% or more, and the elasticity of the first temple member is preferably 1% or more and less than 2%.

  In the spectacle frame member of the present invention, when the temple members are integrated in the order of the second temple member, the first temple member, and the second temple member, the strength can be different depending on the portion. , The width of the design further expands.

  The eyeglass frame member of the present invention is provided with a modern cover for covering the modern member. When the modern cover covers the modern member, the eyeglass frame can be easily attached and detached, and the tightening to the face is reduced. The

  In the spectacle frame member of the present invention, when the spectacle frame member is employed in the front part constituted by the frame member and the bridge member, for example, the elasticity of the bridge member is set to be larger than the elasticity of the frame member. Regardless of the height of the person's nose, the front portion can be accurately positioned at the eye position.

  In the spectacle frame member of the present invention, when the spectacle frame member is adopted for the pad arm, the spectacle frame can be fitted to the nose regardless of the height of the wearer's nose.

In the eyeglass frame member manufacturing method of the present invention, a temple member and a modern member having different elasticity are integrated by friction bonding or laser bonding, and then subjected to swaging or pressing.
Moreover, after performing the said press work, you may give a punching process further.
By combining these processes, a spectacle frame member excellent in design can be manufactured.

Fig.1 (a) is a side view which shows 1st Embodiment using the spectacles frame member based on this invention for an ear hook part, FIG.1 (b) is a top view of Fig.1 (a). FIG. 2 is a schematic side view for explaining a joining step in the method for manufacturing a spectacle frame member according to the first embodiment. FIG. 3 is a schematic side view for explaining a swaging process in the method for manufacturing a spectacle frame member according to the first embodiment. Fig.4 (a) is a schematic side view for demonstrating the press process in the manufacturing method of the spectacles frame member based on 1st Embodiment, FIG.4 (b) is a schematic top view of the obtained ear hook part. It is. FIG. 5 is a perspective view showing spectacles using the spectacle frame member according to the first embodiment. Fig.6 (a) is a side view which shows 2nd Embodiment using the spectacles frame member based on this invention for an ear hook part, FIG.6 (b) is a top view of Fig.6 (a). FIG. 7 is a schematic side view for explaining a joining step in the method for manufacturing a spectacle frame member according to the second embodiment. FIG. 8A is a side view showing a third embodiment in which the spectacle frame member according to the present invention is used for the ear hook, and FIG. 8B is a top view of FIG. 8A. FIG. 9 is a schematic side view for explaining a joining step in the method for manufacturing a spectacle frame member according to the third embodiment. FIG. 10 is a perspective view showing spectacles using the spectacle frame member according to the third embodiment. Fig.11 (a) is a front view which shows embodiment using the spectacles frame member based on this invention for a front part, FIG.11 (b) is a top view of Fig.11 (a). FIG. 12 is a perspective view showing an embodiment in which the spectacle frame member according to the present invention is used for a pad arm. FIG. 13 is a view showing a method for manufacturing a spectacle frame member according to another embodiment, and FIG. 13 (a) is a perspective view showing a joined body in which a titanium alloy member is joined, and FIG. 13 (b). FIG. 13 is a perspective view showing a state after press-working the joined body, and FIG. 13C is a perspective view showing a further punching process.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

  The spectacle frame member of the present invention is a spectacle frame member in which a plurality of members having different elasticity are continuously integrated, and the members are bonded by friction bonding or laser bonding.

According to the spectacle frame member of the present invention, since a plurality of members having different elasticity are integrated by friction bonding or laser bonding, the bonded portion becomes extremely small. For this reason, the process for design provision becomes easy. Furthermore, the fitting property corresponding to the face shape of the user can be ensured.
Moreover, since it joins by the metal fusion of members, it is excellent also in durability while being excellent in intensity | strength.

  Hereinafter, the ear hooking portion, the front portion, and the pad arm using the spectacle frame member of the present invention will be described in detail.

1. Ear hook (first embodiment)
First, a first embodiment in which the spectacle frame member of the present invention is used for an ear hook will be described.
Fig.1 (a) is a side view which shows 1st Embodiment using the spectacles frame member based on this invention for an ear hook part, FIG.1 (b) is the top view.
As shown in FIG. 1A and FIG. 1B, a spectacle frame member (hereinafter also referred to as “ear hook”) 10 according to the first embodiment is continuous with the temple member 1 and the temple member 1. And a modern cover 3 for covering the modern member 2.

  The ear hooking portion 10 has a shape that is gently bent in a top view from the viewpoint of fitting to the shape of the face, and the tip (a part of the modern member 2) is downward in a side view from the viewpoint of being hooked on the ear. It has a bent shape.

The temple member 1 has a distal end portion 1 a tapered in a side view, and the modern member 2 is continuous so that the original end portion 2 a is flush with the tapered distal end portion 1 a of the temple member 1.
Further, the modern member 2 has a middle abdomen 2b that swells in a top view and tapers in a side view toward the end 2c. And the terminal part 2c extended from the middle abdominal part 2b is bent by the side view.

Here, in the ear hook 10, the temple member 1 and the modern member 2 are integrated by friction bonding or laser bonding. That is, the temple member 1 and the modern member 2 are integrated with each other without using fitting means or brazing, and the cross-sections of the distal end portion 1a of the temple member 1 and the original end portion 2a of the modern member 2 are fused together. It is joined. The details of friction welding and laser welding will be described later.
Thus, since the ear hook part 10 is manufactured by such joining, there exists a possibility that the connectivity of the temple member 1 and the modern member 2 may become insufficient, or the temple member 1 and the modern member 2 may come off. Absent. Therefore, the ear hook 10 has excellent durability.

In the ear hook 10, the elasticity of the temple member 1 and the modern member 2 is different. Specifically, the elasticity of the temple member 1 is larger than the elasticity of the modern member 2.
Here, in the present invention, “elasticity” means the property of returning to the original state even when the material is deformed, and the value “A” of the “elasticity” is the force in the length direction of the Lmm material. Is added to extend Bmm, and when the force is released, the original Lmm is restored. However, in the formula, B is the maximum value when returning to the original Lmm.
A (%) = B (mm) × 100 / L (mm)

In the ear hook 10, on the one hand, the elasticity of the temple member 1 is large, so that the glasses can be fitted to the width of the face, and on the other hand, the elasticity of the modern member 2 is small, It can be accurately fixed in position.
Further, the ear hooking portion 10 is not only excellent in design, but also exhibits sufficient strength because the elasticity of the modern member 2 is small even if the diameter of the cross section of the end portion 2c of the modern member 2 is small.

Both the temple member 1 and the modern member 2 are made of a titanium alloy member.
Such a titanium alloy member contains titanium as a main material, and contains at least one metal selected from the group consisting of aluminum, vanadium, niobium, tantalum, hafnium, zirconium and nickel.
The crystal structure of the titanium alloy member is not particularly limited, and includes α-titanium, β-titanium, and αβ-titanium.

  In the temple member 1 and the modern member 2, the elasticity described above is changed by adjusting the metal and crystal structure mixed in the titanium. In the present invention, pure titanium (99% titanium) is also included in the titanium alloy member.

Here, the elasticity of the temple member 1 is preferably 1% or more, and the elasticity of the modern member 2 is preferably less than 1%.
In this case, the fit is further improved.

For example, specific examples of the titanium alloy member used for the temple member 1 having an elasticity of 1% or more include β-titanium (about 70% titanium, 22% vanadium, 4% aluminum), rubber metal (registered trademark), zirconium series Examples thereof include titanium, NT alloy (titanium 50%, nickel 50%), and excellent titanium (registered trademark).
Specific examples of titanium alloy members used for the modern member 2 having elasticity of less than 1% include pure titanium (99% titanium), Tyvek (registered trademark) (titanium 94.5%, aluminum 3%, vanadium. 2.5%).

  The temple member 1 is preferably a shape memory alloy. Since the temple member 1 functions as a cushion, damage is suppressed even if the spectacle frame is dropped.

  The modern cover 3 is attached to the rear side from the middle part 2 b of the modern member 2, and covers the end part 2 c of the modern member 2. As described above, since the middle abdomen 2b is swollen when viewed from above, the modern cover 3 is attached to the middle abdomen 2b and securely fixed.

Next, a method for manufacturing the spectacle frame member (ear hook) 10 will be described.
The manufacturing method of the ear hook 10 includes a step of integrating titanium alloy members having different elasticity by friction bonding or laser bonding (bonding step), a step of performing swaging (swaging step), and press processing (pressing step). The process of performing is performed.

(Joining process)
The joining process is a process in which titanium alloy members having different elasticity are integrated by friction joining or laser joining.
FIG. 2 is a schematic side view for explaining a joining step in the method for manufacturing the spectacle frame member (ear hook) according to the first embodiment.
In the joining step, first, two titanium alloy members having different elasticity are prepared. Of these, the one with higher elasticity will later become the temple member 1, and the one with lower elasticity will later become the modern member 2.

  As shown in FIG. 2, first, a titanium alloy member having high elasticity (hereinafter referred to as “first titanium alloy member”) 11 as a starting material and a titanium alloy member having low elasticity (hereinafter referred to as convenience). (Referred to as “second titanium alloy member”) 12 with their axial centers aligned, and their cross sections are joined. In addition, the 1st titanium alloy member 11 and the 2nd titanium alloy member 12 are wire materials of the same diameter in a cross section.

As a joining method, friction joining or laser joining is used.
Here, the friction joining means that the joining surfaces of the first titanium alloy member 11 and the second titanium alloy member 12 are rubbed together at high speed by rotation or the like, and the boundary metal is softened by the friction heat generated at that time. It is a method of joining by applying pressure simultaneously. The first titanium alloy member 11 and the second titanium alloy member 12 having different elasticity are integrated by integrating the metal at the boundary by friction bonding. In addition, at the time of friction joining, a disk sandering or blasting process may be applied to the joining surface of the first titanium alloy member 11 and / or the second titanium alloy member 12 from the viewpoint of improving durability.
In this case, since brazing is not performed, manufacturing is easy, yield is high, and durability is excellent.

Also, laser bonding is performed by irradiating a laser at a boundary portion where the bonding surfaces of the first titanium alloy member 11 and the second titanium alloy member 12 are combined to melt the boundary metal and simultaneously apply pressure. It is a method to do. The first titanium alloy member 11 and the second titanium alloy member 12 having different elasticity are integrated by integrating the metal at the boundary by laser bonding.
Also in this case, since brazing is not performed, manufacture is easy, and yield and durability are excellent. Further, by selecting the diameter of the laser beam, even a minute part can be processed.
In this way, when the peripheral burrs and the like are processed after joining, the joined body 15 in which the first titanium alloy member 11 and the second titanium alloy member 12 are flush with each other and integrated is obtained.

(Swaging process)
The swaging step is a step of performing a swaging process on the bonded body 15 described above.
Here, the swaging process is a process of forming portions having different diameters in the cross section by stretching.

  In the manufacturing method of the ear hook 10, since the titanium alloy members having the same diameter and different elasticity are integrated by friction bonding or laser bonding, swaging processing including the bonded portions can be easily performed. Become. Incidentally, in conventional fitting and brazing, it is difficult to process including connected portions.

FIG. 3 is a schematic side view for explaining a swaging process in the method for manufacturing the spectacle frame member (ear hook) according to the first embodiment.
As shown in FIG. 3, in the swaging process, a position 15 a corresponding to the end portion 1 a of the temple member 1 of the joined body 15 and a position 15 b corresponding to the middle part 2 b of the modern member 2 of the joined body 15. Swaging is applied starting from the location. The position 15a corresponding to the end portion 1a of the temple member 1 includes a joined portion.
Thereby, a part of the joined body 15 is squeezed and the diameter is reduced. That is, the start positions 15a and 15b subjected to the swaging process are tapered, and the cross-section is smaller in diameter at the tip. The swaging process is appropriately performed by a known method.
In this way, the intermediate body 16 in which the bonded body 15 is subjected to the swaging process is obtained.

(Pressing process)
The pressing step is a step of pressing the intermediate body 16. In addition, in the manufacturing method of the ear hook part 10, since the titanium alloy members having different elasticity are integrated by joining, unlike conventional fitting and brazing, press working including the joined part is performed. Is possible.

Fig.4 (a) is a schematic side view for demonstrating the press process in the manufacturing method of the spectacles frame member (ear hook part) which concerns on 1st Embodiment, FIG.4 (b) is the obtained ear hook. It is a schematic top view of a part.
As shown in FIGS. 4 (a) and 4 (b), in the pressing step, the intermediate body 16 is subjected to press work other than the portion corresponding to the middle portion 2b to the end portion 2c of the modern member 2. When the press working is performed, the shape subjected to the swaging process is maintained in the side view but becomes flat in the top view. The thickness at this time can be adjusted as appropriate.
In this way, the pre-ear hooking portion 17 obtained by pressing the intermediate body 16 is obtained.

And while bending the part corresponded to the terminal part 2c of the modern member 2 of the pre-ear hook part 17 downward, the modern cover 3 is attached so that the terminal part 2c may be covered. The modern cover 3 is fastened to the middle part 2b of the modern member 2.
Thus, the spectacle frame member (ear hook) 10 according to the first embodiment is obtained.

The ear hook 10 is used as eyeglasses by attaching a lens, a frame, a box foot or the like by a known method.
FIG. 5 is a perspective view showing spectacles using the spectacle frame member (ear hook) according to the first embodiment.
As shown in FIG. 5, the spectacles 50 include a frame 51, ear hooks 10 attached to both sides of the frame 51, a pair of pad arms 52 attached to a central bridge of the frame 51, Is provided.

The eyeglasses 50 have the temple member 1 and the modern member 2 having different elasticity in the ear hook 10, so that the function of fitting the eyeglasses to the face and the function of fixing the eyeglasses to the position can be performed simultaneously.
In addition, as described above, the ear hooking portion 10 is excellent in design, so that the spectacles are also excellent in design.

[Second Embodiment]
Next, a second embodiment in which the spectacle frame member of the present invention is used for an ear hook will be described.
Fig.6 (a) is a side view which shows 2nd Embodiment using the spectacles frame member based on this invention for an ear hook part, FIG.6 (b) is a top view of Fig.6 (a).
As shown in FIGS. 6A and 6B, a spectacle frame member (ear hook) 20 according to the second embodiment includes a temple member 21 and a modern member 22 continuous to the temple member 21. The modern cover 3 for covering the modern member 22 is provided, and the temple member 21 includes a first temple member 25 and a second temple member 26. That is, the first temple member 25, the second temple member 26, and the modern member 22 are continuously integrated in this order.

  From the viewpoint of fitting to the shape of the face, the ear hanger 20 has a shape that is gently bent in top view, and from the viewpoint of being hooked on the ear, the tip (a part of the modern member 22) is bent downward. have.

The first temple member 25 has a distal end portion 25 a tapered in a side view, and the second temple member 26 is continuous so that the original end portion 26 a is flush with the tapered distal end portion 25 a of the first temple member 25. is doing.
Further, the second temple member 26 has a distal end portion 26 b that is tapered in a side view, and the modern member 22 has a former end portion 22 a that is flush with the tapered end portion 26 b of the second temple member 26. It is continuous.
Further, the modern member 2 has the middle abdomen 22b swelled in a top view and tapered toward the end part 22c in a side view. The end portion 22c is bent.

Here, in the ear hook portion 20, the first temple member 25 and the second temple member 26, and the second temple member 26 and the modern member 22 are integrated by friction bonding or laser bonding. That is, the surfaces of the end portion 25a of the first temple member 25 and the original end portion 26a of the second temple member 26 are joined together by metal fusion, and the end portion 26b of the second temple member 26 and the modern member are joined together. The cross sections of the 22 and the former end portion 22a are joined together by metal fusion. In addition, joining is performed by the friction joining mentioned above or laser joining.
Thus, since the ear hook part 20 is manufactured by joining, there is no possibility that the connectivity between the temple member 21 and the modern member 22 becomes insufficient or the temple member 21 or the modern member 22 comes off. Therefore, the ear hook 20 has excellent durability.

  In the ear hook 20, the elasticity of the first temple member 25, the second temple member 26, and the modern member 22 is different. Specifically, the elasticity of the second temple member 26 is the first temple member 25. The elasticity of the first temple member 25 is greater than the elasticity of the modern member 22.

In the ear hooking portion 20, since the elasticity of the first temple member 25 is large, the glasses can be adjusted to the width of the face, and the elasticity of the second temple member 26 is larger, so that it can be surely fitted to the width of the face. it can. That is, the elasticity can be adjusted among the temple members, so that the fit can be further improved.
Moreover, since the elasticity of the modern member 22 is small, it is easy to hang on the ear and fix in that position. In addition, even if it is a case where the diameter of the cross section of the modern member 22 is made small, intensity | strength will be excellent by making the elasticity of the modern member 22 small.
Furthermore, the ear hook 20 is not only excellent in design but also exhibits sufficient strength because the elasticity of the modern member 22 is small even if the diameter of the cross section of the end portion 22c of the modern member 22 is small.

Here, the elasticity of the first temple member 25 is preferably 1% or more and less than 2%, the elasticity of the second temple member 26 is preferably 2% or more, and the elasticity of the modern member 22 is Preferably, it is less than 1%.
In this case, the fit is surely improved.

For example, specific examples of a titanium alloy member used for the first temple member 25 having an elasticity of 1% or more and less than 2% include β-titanium (about 70% titanium, 22% vanadium, 4% aluminum), rubber metal (registered) Trademark), zirconium-based titanium and the like, and specific examples of titanium alloy members used for the second temple member 26 having elasticity of 2% or more include NT alloy (titanium 50%, nickel 50%), and excellent titanium. (Registered trademark) and the like.
Specific examples of titanium alloy members used for the modern member 22 having an elasticity of less than 1% include pure titanium (99% titanium), Tyvek (registered trademark) (94.5% titanium, 3% aluminum, vanadium). 2.5%).

  The second temple member 26 is preferably a shape memory alloy. Since the second temple member 26 functions as a cushion, for example, even if the spectacle frame is dropped, the damage is suppressed.

  The modern cover 3 is attached to the rear side from the middle part 22 b of the modern member 22 and covers the end part 22 c of the modern member 22. As described above, since the middle abdomen 22b is swollen when viewed from above, the modern cover 3 is attached to the middle abdomen 22b and securely fixed.

Next, the manufacturing method of the ear hook part 20 is demonstrated.
The manufacturing method of the ear hanger 20 is the same as the manufacturing method of the ear hanger 10 according to the first embodiment, a step of joining three titanium alloy members having different elasticity together by friction bonding or laser bonding (bonding step). The step of performing the swaging process (swaging process) and the step of performing the press working (pressing process) are performed.

(Joining process)
The joining process is a process in which three titanium alloy members having different elasticity are integrated by friction joining or laser joining.
FIG. 7 is a schematic side view for explaining a joining step in the method for manufacturing a spectacle frame member (ear hook) according to the second embodiment.
In the joining step, first, three titanium alloy members having different elasticity are prepared. Of these, the one with the greatest elasticity will later become the second temple member 26, the one with the next highest elasticity will later become the first temple member 25, and the one with the lower elasticity will later become the modern member 22.

  Then, as shown in FIG. 7, a titanium alloy member (hereinafter referred to as “second titanium alloy member”) 28 having the greatest elasticity and a titanium alloy member (hereinafter referred to as “second titanium alloy member” for convenience). The first titanium alloy member 27 and the second titanium alloy member 29 are referred to as a first titanium alloy member 27 and a titanium alloy member 29 having a low elasticity (hereinafter referred to as a “third titanium alloy member” for convenience) 29. 28, the third titanium alloy member 29 is positioned in the order of the axial centers, and the cross sections thereof are joined. The first titanium alloy member 27, the second titanium alloy member 28, and the third titanium alloy member 29 are all wire rods having the same circular diameter in cross section.

The joining method is friction joining or laser joining as described above.
In this way, the joined body 23 in which the first titanium alloy member 27, the second titanium alloy member 28, and the third titanium alloy member 29 are flush and integrated is obtained. The joined body 23 may be used as an ear hook as it is. That is, the first titanium alloy member 27 may be the first temple member 25, the second titanium alloy member 28 may be the second temple member 26, and the third titanium alloy member 29 may be the modern member 22.

And the ear-hanging part 20 which concerns on 2nd Embodiment is obtained by performing a swaging process and a press process with respect to the conjugate | zygote 23. FIG.
The ear hanger 20 uses the ear hanger 20 according to the second embodiment instead of the ear hanger 10 according to the first embodiment, and attaches a lens, a frame, a pad arm, etc. by a known method, It is used similarly to the glasses shown in FIG.

[Third Embodiment]
Next, a third embodiment in which the spectacle frame member of the present invention is used for an ear hook will be described.
FIG. 8A is a side view showing a third embodiment in which the spectacle frame member according to the present invention is used for the ear hook, and FIG. 8B is a top view of FIG. 8A.
As shown in FIGS. 8A and 8B, a spectacle frame member (ear hook) 30 according to the third embodiment includes a temple member 31 and a modern member 32 continuous to the temple member 31. A modern cover 3 for covering the modern member 32, and the temple member 31 includes a second temple member (hereinafter referred to as “second front temple member”) 35 and a first temple member (hereinafter referred to as convenience). It comprises a “first middle temple member”) 36 and a second temple member (hereinafter referred to as “second rear temple member” for convenience) 37. That is, the 2nd front temple member 35, the 1st middle temple member 36, the 2nd back temple member 37, and the modern member 32 are continuing in this order.

  The ear hook 30 has a shape that is gently bent in a top view from the viewpoint of fitting to the shape of the face, and a shape in which the tip (a part of the modern member 32) is bent downward from the viewpoint of being hooked on the ear. have.

The end portion 35a of the second front temple member 35 is continuous with the original end portion 36a of the first middle temple member 36, and the end portion 36c of the first middle temple member 36 is in the second rear position. The end portion 37b of the second rear temple member 37 is continuous with the original end portion 32a of the modern member 32, and is continuous with the original end portion 37a of the temple member 37. Yes.
Further, the middle portion 36b of the first middle temple member 36 and the end portion 37b of the second rear temple member 37 are swollen in a top view. The end portion 32c is bent in a side view.

Here, in the ear hook 30, the second front temple member 35 and the first middle temple member 36, the first middle temple member 36 and the second rear temple member 37, the second rear temple member 37 and the modern member 32. Are integrated by friction bonding or laser bonding. That is, the surfaces of the end portion 35a of the second front temple member 35 and the original end portion 36a of the first middle temple member 36 are joined together by metal fusion, and the end portion 36a of the first middle temple member 36 is joined. The surfaces of the second rear temple member 37 and the original end portion 37a of the second rear temple member 37 are joined together by metal fusion, and a cross section of the end portion 37b of the second rear temple member 37 and the original end portion 32a of the modern member 32 is joined. They are joined together by metal fusion with each other. In addition, joining is performed by the friction joining mentioned above or laser joining.
Thus, since the ear hook part 30 is manufactured by joining, there is no possibility that the connectivity between the temple member 31 and the modern member 32 will be insufficient and the temple member 31 and the modern member 32 may be detached. Therefore, the ear hook 30 has excellent durability.

  In the ear hook 30, the second front temple member 35 and the second rear temple member 37, the first middle temple member 36, and the modern member 32 are different in elasticity. The elasticity of the temple member 35 and the second rear temple member 37 is greater than the elasticity of the first middle temple member 36, and the elasticity of the first middle temple member 36 is greater than the elasticity of the modern member 32. ing. The second front temple member 35 and the second rear temple member 37 have substantially the same elasticity.

In the ear hook 30, since the elasticity of the first middle temple member 36 is large, the glasses can be adjusted to the width of the face, and the elasticity of the second front temple member 35 and the second rear temple member 37 is greater. It can be surely fitted to the width of the face. That is, the elasticity can be adjusted among the temple members, so that the fit can be further improved.
Moreover, since the elasticity of the modern member 32 is small, it can be hooked on the ear and fixed at that position. In addition, even if it is a case where the diameter with respect to the length direction of the modern member 32 is made small, intensity | strength will be excellent by making the elasticity of the modern member 32 small.
Furthermore, the ear hook 30 is not only excellent in design but also exhibits sufficient strength because the elasticity of the modern member 32 is small even if the diameter of the cross section of the end portion 32c of the modern member 32 is small.

Here, the elasticity of the first middle temple member 36 is preferably 1% or more and less than 2%, and the elasticity of the second front temple member 35 and the second rear temple member 37 is 2% or more. Preferably, the elasticity of the modern member 32 is preferably less than 1%.
In this case, the fit is surely improved.

For example, specific examples of the titanium alloy member used for the first middle temple member 36 having an elasticity of 1% or more and less than 2% include β-titanium (about 70% titanium, 22% vanadium, 4% aluminum), rubber metal ( Specific examples of titanium alloy members used for the second front temple member 35 and the second rear temple member 37 having a elasticity of 2% or more include registered trademark (registered trademark) and zirconium-based titanium. %, Nickel 50%), and excellent titanium (registered trademark).
Specific examples of the titanium alloy member used for the modern member 32 having an elasticity of less than 1% include pure titanium (99% titanium), Tyvek (registered trademark) (titanium 94.5%, aluminum 3%, vanadium). 2.5%).

  The second front temple member 35 and the second rear temple member 37 are preferably shape memory alloys. Since the 2nd front temple member 35 and the 2nd back temple member 37 fulfill | perform the function of a cushion, even if a spectacles frame is dropped, damage is suppressed.

The modern cover 3 is attached to the end portion 37 b of the second rear temple member 37 and covers the entire end portion 32 c of the modern member 32. Since the end portion 37b is swollen as viewed from above as described above, the modern cover 3 is securely fixed.
By providing the ear cover 30 with the modern cover 3, the eyeglass frame can be easily attached and detached, and the tightening on the face can be eased.
The material of the modern cover 3 is not specifically limited, A well-known thing is used suitably.

Next, a method for manufacturing the spectacle frame member (ear hook) 30 will be described.
The manufacturing method of the ear hook 30 is the same as the manufacturing method of the ear hook 10 according to the first embodiment, a step of joining four titanium alloy members having different elasticity together by friction bonding or laser bonding (bonding step). The step of performing the swaging process (swaging process) and the step of performing the press working (pressing process) are performed.

(Joining process)
The joining process is a process in which four titanium alloy members having different elasticity are integrated by friction joining or laser joining.
FIG. 9: is a schematic side view for demonstrating the joining process in the manufacturing method of the spectacles frame member (ear hook part) which concerns on 3rd Embodiment.
In the joining step, first, four titanium alloy members having different elasticity are prepared. Of these, the one with the highest elasticity will later become the second front temple member 35 and the second rear temple member 37, the one with the next highest elasticity will later become the first middle temple member 36, and the one with the lower elasticity will be later. It becomes the modern member 32.

  Then, as shown in FIG. 9, two titanium alloy members (hereinafter referred to as “first titanium alloy member” and “third titanium alloy member”) 41 and 43 having the greatest elasticity, and then the elasticity Titanium alloy member (hereinafter referred to as “second titanium alloy member”) 42 having high properties and a titanium alloy member 44 (hereinafter referred to as “fourth titanium alloy member” for convenience) 44 having low elasticity. The first titanium alloy member 41, the second titanium alloy member 42, the third titanium alloy member 43, and the fourth titanium alloy member 44 are positioned with their axes aligned in order, and their cross sections are joined. The first titanium alloy member 41, the second titanium alloy member 42, the third titanium alloy member 43, and the fourth titanium alloy member 44 are all wire rods having the same circular diameter in cross section.

The joining method is friction joining or laser joining as described above.
In this way, a joined body 45 is obtained in which the first titanium alloy member 41, the second titanium alloy member 42, the third titanium alloy member 43, and the fourth titanium alloy member 44 are flush with each other. The joined body 45 may be used as an ear hook as it is. That is, the first titanium alloy member 41 is the second front temple member 35, the second titanium alloy member 42 is the first middle temple member 36, the third titanium alloy member 43 is the second rear temple member 37, and the fourth titanium. The alloy member 44 may be the modern member 32.

And the ear hook part 30 which concerns on 3rd Embodiment is obtained by performing a swaging process and a press process with respect to the conjugate | zygote 45. FIG.
The ear hook 30 uses the ear hook 30 according to the third embodiment instead of the ear hook 10 according to the first embodiment, and attaches a lens, a frame, a pad arm, and the like by a known method. Therefore, it is used in the same manner as glasses (see FIG. 10).

2. Front Part Next, an embodiment in which the spectacle frame member of the present invention is used for the front part will be described.
Fig.11 (a) is a front view which shows embodiment using the spectacles frame member based on this invention for a front part, FIG.11 (b) is a top view of Fig.11 (a).
As shown in FIG. 11A, a spectacle frame member (hereinafter also referred to as “front portion”) 70 according to the present embodiment is a portion located on the front surface, and is continuous with the frame member 71 and the frame member 71. And an arch-shaped bridge member 72.

In the front portion 70, the frame member 71 and the bridge member 72 are integrated by friction bonding or laser bonding. That is, the cross sections of the frame member 71 and the bridge member 72 are joined together by metal fusion.
Thus, since the front part 70 is manufactured by joining, there is no possibility that the frame member 71 and the bridge member 72 will come off. Therefore, the front part 70 has excellent durability.

In the front portion 70, the elasticity of the frame member 71 and the bridge member 72 is different. Specifically, the elasticity of the frame member 71 is greater than the elasticity of the bridge member 72.
For this reason, in the front part 70, as shown in FIG.11 (b), while being able to fit the bridge member 72 to the height of a wearer's nose, according to the height of a nose, The angle can be adjusted. As a result, the front portion can be accurately positioned at the eye position regardless of the height of the wearer's nose.

Both the frame member 71 and the bridge member 72 are made of a titanium alloy member.
Such a titanium alloy member is synonymous with the titanium alloy member in the ear hook 10 described above.
Here, the elasticity of the frame member 71 is preferably 1% or more, and the elasticity of the bridge member 72 is preferably less than 1%.
In this case, the fit is further improved.

For example, specific examples of a titanium alloy member used for the frame member 71 having an elasticity of 1% or more include β-titanium (about 70% titanium, 22% vanadium, 4% aluminum), rubber metal (registered trademark), zirconium series Examples thereof include titanium, NT alloy (titanium 50%, nickel 50%), and excellent titanium (registered trademark).
Specific examples of the titanium alloy member used for the bridge member 72 having an elasticity of less than 1% include pure titanium (99% titanium), Tyvek (registered trademark) (titanium 94.5%, aluminum 3%, vanadium). 2.5%).

Next, a method for manufacturing the spectacle frame member (front portion) 70 will be described.
The manufacturing method of the front portion 70 is a method in which a frame member 71 and a bridge member 72 made of titanium alloy members having different elasticity are integrally manufactured by friction bonding or laser bonding in the order of the frame member 71, the bridge member 72, and the frame member 71. Is done. This joining process is performed in the same manner as the joining process in the method for manufacturing the ear hook 10.
Thus, after joining, the front part 70 is obtained by processing peripheral burrs and the like.
In the spectacle frame member of the present invention, when the spectacle frame member is adopted for the pad arm, the spectacle frame can be fitted to the nose regardless of the height of the wearer's nose.

3. Next, an embodiment in which the spectacle frame member of the present invention is used for a pad arm will be described.
FIG. 12 is a perspective view showing an embodiment in which the spectacle frame member according to the present invention is used for a pad arm.
As shown in FIG. 12, the spectacle frame member (hereinafter also referred to as “pad arm”) 80 according to the present embodiment includes an arch-shaped first pad arm member 81 and an inverse that is continuous with the first pad arm member 81. And an arched second pad arm member 82.

In the pad arm 80, a first pad arm member 81 and a second pad arm member 82 are integrated by friction bonding or laser bonding. That is, the cross sections of the first pad arm member 81 and the second pad arm member 82 are joined together by metal fusion.
Thus, since the pad arm 80 is manufactured by joining, there is no possibility that the first pad arm member 81 and the second pad arm member 82 are detached. Therefore, the pad arm 80 has excellent durability.

In the pad arm 80, the elasticity of the first pad arm member 81 and the second pad arm member 82 is different. Specifically, the elasticity of the second pad arm member 82 is greater than the elasticity of the first pad arm member 81.
For this reason, in the pad arm 80, the second pad arm member 82 acts as a spring and the first pad arm member 81 exhibits a stable fixing force according to the height of the wearer's nose. A feeling increases greatly.

Both the first pad arm member 81 and the second pad arm member 82 are made of a titanium alloy member.
Such a titanium alloy member is synonymous with the titanium alloy member in the ear hook 10 described above.
Here, the elasticity of the second pad arm member 82 is preferably 1% or more from the viewpoint of fit, and the elasticity of the first pad arm member 81 is preferably less than 1%.

For example, specific examples of a titanium alloy member used for the second pad arm member 82 having an elasticity of 1% or more include β-titanium (about 70% titanium, 22% vanadium, 4% aluminum), rubber metal (registered trademark). Zirconium-based titanium, NT alloy (titanium 50%, nickel 50%), and excellent titanium (registered trademark).
Further, specific examples of the titanium alloy member used for the first pad arm member 81 whose elasticity is less than 1% include pure titanium (99% titanium), Tyvek (registered trademark) (94.5% titanium, aluminum 3 %, Vanadium 2.5%) and the like.

Next, a method for manufacturing the spectacle frame member (pad arm) 80 will be described.
The manufacturing method of the pad arm 80 is manufactured by performing a step (bonding step) of integrating titanium alloy members having different elasticity by friction bonding or laser bonding, and a step of bending according to a known method. This joining process is performed in the same manner as the joining process in the method for manufacturing the ear hook 10.
Thus, after joining, the pad arm 80 is obtained by processing the peripheral burrs and the like.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  For example, in the method of manufacturing the ear hook 10 according to the first embodiment, the press process (press process) is performed after the swaging process (the swaging process), but the swaging process is performed after the press process is performed. May be applied.

In the manufacturing method of the ear hook part of this invention, after giving a press work, you may give a punching process further. The design will be better.
FIG. 13 is a view showing a method for manufacturing a spectacle frame member (ear hook) according to another embodiment, and FIG. 13 (a) is a perspective view showing a joined body in which a titanium alloy member is joined, FIG.13 (b) is a perspective view which shows after giving a press work to a conjugate | zygote, FIG.13 (c) is a perspective view which gave the punching process further.
As shown in FIGS. 13 (a) to 13 (c), the joined body 23 described above is pressed to form a flat plate, and a punching process is performed in which a hole 46 is provided near the center, thereby providing design. Can do. In addition, in the ear hook part of this invention, since the titanium alloy member from which elasticity differs is integrated by joining, it is the joined body 23, Therefore The press work or punching process including the joined part is attained. Incidentally, in conventional fitting and brazing, it is difficult to process including connected portions.

  In addition, a chamfering process by cutting or the like may be performed.

In the method for manufacturing the ear hook 10 according to the first embodiment, the first titanium alloy member 11 may be the temple member 1 and the second titanium alloy member 12 may be the modern member 2.
Moreover, the intermediate body 16 may be used as it is as an ear hook, and the pre-ear hook 17 may be used as it is as an ear hook.

  The spectacle frame member of the present invention is suitably used for spectacle frames. The spectacle frame member of the present invention is easy to process for imparting a design, and is excellent in strength and durability.

1, 21, 31 ... Temple members 1a, 2c, 22c, 25a, 26b, 32c, 35a, 36c, 37b ... Terminal portions 2, 22, 32 ... Modern members 2a, 22a, 26a, 32a, 36a, 37a ... original end 2b, 22b, 36b ... middle abdomen 3 ... modern cover 10, 20, 30 ... spectacle frame member (ear hook)
11, 27, 41 ... first titanium alloy member 12, 28, 42 ... second titanium alloy member 15, 23, 45 ... joined body 15a, 15b ... position 16 ... intermediate body 17 ... Pre-ear hook part 25 ... 1st temple member 26 ... 2nd temple member 29 ... 3rd titanium alloy member 35 ... 2nd front temple member (2nd temple member)
36... First middle temple member (first temple member)
37 ... second rear temple member (second temple member)
43 ... 3rd titanium alloy member 44 ... 4th titanium alloy member 46 ... Hole 50, 60 ... Glasses 51 ... Frame body 52 ... Pad arm 70 ... Eyeglass frame member ( Front part)
71 ... Frame member 72 ... Bridge member 80 ... Eyeglass frame member (pad arm)
81: First pad arm member 82: Second pad arm member

Claims (11)

A spectacle frame member in which a plurality of members having different elasticity are continuously integrated,
An eyeglass frame member in which the members are bonded by friction bonding or laser bonding. The plurality of members include a temple member and a modern member continuous with the temple member,
The spectacle frame member according to claim 1, wherein the spectacle frame member is used for an ear-hook portion of spectacles.   The spectacle frame member according to claim 2, wherein the elasticity of the temple member is larger than the elasticity of the modern member. The temple member and the modern member are made of a titanium alloy member,
The spectacle frame member according to claim 2, wherein the elasticity of the temple member is 1% or more, and the elasticity of the modern member is less than 1%. The temple member is composed of a first temple member and a second temple member,
The elasticity of the second temple member is greater than the elasticity of the first temple member;
The eyeglass frame member according to any one of claims 2 to 4, wherein the first temple member and the second temple member are integrated by friction bonding or laser bonding.   The spectacle frame member according to claim 5, wherein the elasticity of the second temple member is 2% or more, and the elasticity of the first temple member is 1% or more and less than 2%.   The eyeglass frame member according to claim 5 or 6, wherein the temple member is integrated in the order of the second temple member, the first temple member, and the second temple member. The plurality of members include a frame member and a bridge member continuous to the frame member,
The spectacle frame member according to claim 1, which is used for a front portion of spectacles.   The spectacle frame member according to claim 1 used for a pad arm. A method for manufacturing a spectacle frame member according to any one of claims 1 to 9,
A method for manufacturing a spectacle frame member in which titanium alloy members having different elasticity are integrated by friction bonding or laser bonding and subjected to swaging or pressing. A method for manufacturing a spectacle frame member according to any one of claims 1 to 9,
A method for manufacturing a spectacle frame member in which titanium alloy members having different elasticity are integrated by friction bonding or laser bonding, press-worked, and further punched.

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