JP2001154154A - Rimless spectacles using bent metallic parts, and the bent metallic parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide high-function rimless spectacles which are light in weight and extremely good in wearing feel in use while maintaining a strength and texture as metal and can be highly efficiently manufactured by a simple sheet metal working without the use of laborious metal joining, such as welding and vent metallic parts necessary to the same. SOLUTION: Bridge members and bracket endpieces are so shaped and designed that these members can be manufactured by a simple sheet metal working, such as blanking of metallic sheets. A pair of light and left lenses are assembled and temple members are hinged by using the bridge members and bracket endpieces manufactured in the manner described above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rimless spectacles using bent metal parts and the bent metal parts, and more particularly, to punching a metal sheet.
The present invention relates to lightweight and smart rimless glasses that can be easily assembled using bent metal parts that can be manufactured at low cost by simple plate work such as ching.

[0002]

2. Description of the Related Art A pair of left and right lenses are arranged side by side and fixed to and supported by a strap provided at both ends of a bridge member to form a front frame. Bracket lug
Eyeglasses of the type in which a temple member is hinged so as to be freely foldable at the end of the bracket J while being fixed to the strap of the bracket are known as rimless eyeglasses (for example, Japanese Patent Publication No. 1-60128). See FIGS. 10 and 11, FIG. 1 of Japanese Utility Model Application Laid-Open No. 62-35324, FIGS. 1 and 3 of Japanese Patent Application Laid-Open No. 8-136866, and JIS B7280: 105 [Appended Figure 5].

[0003] This type of rimless eyeglasses has a wide field of view and is clear because the rims for holding the left and right lenses are omitted, and is constructed using only lenses and simple and small metal parts. The smart design without light and useless decoration is very popular among young people.

However, parts such as a bridge member and a bracket used for this kind of rimless glasses are required to have strength enough to directly connect and hold the left and right lenses and support the entire load with the temple member. Moreover, since a high-quality feeling is required in design, it is usually made of metal.

However, in the above-mentioned bridge member,
In addition to a lens strap for connecting and holding the lens at the left and right ends, a pad arm for attaching a nose pad and, in some cases, an inner edge support that supports the peripheral edge of the lens are also necessary, so manufacturing The brazing process is indispensable, the production efficiency is low, and the cost must be high. The same is true of the bracket J, which has at its end a hinge plate for hinged connection of the temple member and, in most cases, an outer edge abutment for supporting the periphery of the lens. Therefore, brazing is also indispensable there, and there are also disadvantages in production efficiency and cost.

Recently, however, it has become possible to integrally mold a bridge member and a bracket made of synthetic resin by injection molding. However, the design is inferior to that of a metal material in terms of texture. I was not satisfied with the orientation.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of conventional rimless glasses using a bridge member and a bracket.
Despite the use of bridge members and brackets as metal parts, each of these parts is made up of a metallographically integrated structure, and can be easily punched without welding or brazing. An object of the present invention is to provide rimless eyeglasses that can be manufactured by simple sheet metal processing and bent metal parts used therefor.

Another technical object of the present invention is to provide high-performance rimless spectacles that are lightweight and comfortable to wear when used while maintaining strength and texture as metal, and such rimless spectacles. To provide bent metal parts necessary for manufacturing.

Another technical problem of the present invention is to provide inexpensively rimless spectacles having a configuration which can be manufactured with high efficiency and a bridge member as a bent metal part which enables the rimless spectacles. is there.

[0010]

Means adopted by the present inventor to solve the above-mentioned problem will be described below with reference to the accompanying drawings.

First, the configuration of the rimless spectacles adopted as a means for solving the problem according to the present invention comprises at least one lens strap 12 on each of the left and right ends of the bridge section 11 and the bridge section.
A pair of left and right pad arms 14 each having a pad mounting portion 13 are integrally provided at a distal end portion extending downward from the vicinity of both sides of 11 and the straps 12 and the pad arms 14 are bent as necessary. A bridging member 1 made of a thin metal plate; and at least one lens strap 22 at one end of a brace 21 and a pair of knuckle plates 23 at a take-out end of the brace 21 of the brace 21. A pair of knuckle plates 23 which are formed and bent up and down so as to face each other in parallel so as to form take-out hinge pieces (23, 23); A temple member 3 having a rotatable piece 31 insertable between the knuckle plates 23;
A bridge fastening hole 41 is provided at a position corresponding to the lens strap 12 of the bridge member 1, and a pair of lenses 4 each having a fastening hole 42 provided at a position corresponding to the lens strap 22 of the bracket J 2. As a component, the pair of lenses 4 are arranged side by side on the left and right, and the adjacent bridge fixing holes 41 are arranged.
The front frame F is formed by connecting the lens straps 12 provided on the left and right ends of the bridge member 1 to the front frame F in a state in which the left and right lenses 4 are formed. The lens strap 22 of the bracket J2 is filled in the outer fastening hole 42 located on the outer side and connected by the fastening member 5, while the take-out hinge pieces (23, 23) facing the eyepiece side.
Of the temple member 3 between the knuckle plates 23
It is characterized in that an assembling means is adopted in which the connecting means is inserted so as to be foldable by the fastening pivot 6.

The bent metal parts required for realizing the above-mentioned "rimless glasses" of the present invention can be attained by employing the following constitution means as described with reference to the accompanying drawings. The bent metal part as the bridge member 1 is a bendable punched metal sheet having a narrow bridge section 11 and at least one lens strap 12 on each of the left and right ends of the bridge section 11. And extending downward from the vicinity of both sides of the bridge section 11 and a pad mounting section 13
This is characterized in that a pair of left and right pad arms 14 each having the following are integrally provided. The bent metal part as the bracket 2 is a bendable punched metal sheet having a narrow width arm part 21, and has at least one lens strap 22 at one end of the arm part 21. A pair of knuckle plates 23 are symmetrically provided at the other end of the arm section 21. The pair of knuckle plates 23 are bent up and down in parallel to face each other, so that the hinge piece (2) of the bracket 2 can be taken out. 23 ・ 23) is characterized in that it can be formed.

[Supplementary explanation of the present invention] As a reminder, a supplementary explanation of the above-mentioned "rimless spectacles" of the present invention and the metal parts used therein will be given below. The bridge member 1 and the bracket member 2 as parts are preferably made of a thin metal plate having good corrosion resistance and toughness. For example, β titanium, titanium palladium alloy, nickel silver, beryllium copper, stainless steel
(sus 402j2-CSP) is used.

As the lens 4 used in the present invention, conventionally known plastic spectacle lenses, for example, diethylene glycol bisallyl carbonate resin (commonly known as CR-39), polythiourethane resin (JP-A-7-316250), methacrylate Although all spectacle lenses made of resin, polymethyl methacrylate resin, etc., can be used, glass lenses also have bridge fastening holes 41.
It is possible to employ the drilling process when the hole 42 is opened, although the drilling process requires some trouble.

Next, it is preferable that the bent metal part as the bridge member 1 is integrally provided with an inner edge contact portion 15 to be brought into contact with the peripheral edge of the lens 4 near the root of the lens strap 12. Also, it is preferable that the bent metal part as the bracket J is integrally provided with an outer edge contact portion 24 to be brought into contact with the peripheral portion of the lens 4 near the root of the lens strap 21. By doing so, it is possible to prevent the lens 4 from sliding around the fastening holes 41 and 42 when the lens 4 is held. Such a bridge member 1 and bracket 2 can be easily formed by punching a thin metal plate.

Further, it is preferable that the pad mounting portion 13 formed on the pad arm 14 of the bridge member 1 be formed simultaneously by punching, and the nose pad can be attached by a latching method or an attaching method. It is necessary to be.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, rimless glasses and bent metal parts constituted by applying the present invention will be described with reference to specific embodiments.

FIG. 1 is a completed view of rimless spectacles according to a first embodiment of the present invention, wherein reference numeral 1 denotes a bridge member, reference numeral 2 denotes a bracket member, and reference numeral 3 denotes a temple member. Reference numeral 4 denotes a lens, reference numeral 5 denotes a fastening member (in this embodiment, a bolt and a nut), reference numeral 6 denotes a fastening pivot, reference numeral 7 denotes a nose pad, and reference numeral 8 denotes a modern end-cover.

The specific shape of the bridge member 1 for constituting the rimless glasses according to the above embodiment is shown in FIGS.
Is shown in That is, the bridge member 1 in the present embodiment
Is made by punching a thin sheet of β-titanium having a thickness of 0.7 mm, and has an almost π-shaped overall shape. On the left and right ends of the narrow bridge section 11, lens straps 12 extending laterally are formed, and a stop hole 12a is formed at an end of the strap 12. A pad arm 14 extends downward from each side of the bridge section 11 of the bridge member 1 to form a horseshoe-shaped pad mounting portion 13 at a distal end portion. A nose pad described later is hooked and mounted on the horseshoe-shaped pad mounting section 13. Further, in this embodiment, an all-shaped inner edge contact portion 15 to be brought into contact with the peripheral edge portion of the lens 4 from the root portion of the lens strap 12 at both ends of the bridge member 1 is vertically symmetrically projected.
Incidentally, when the bridge member 1 is punched from a β titanium thin plate, the inner edge contact portion 15 is formed at the same time as the bridge bridge portion 11, the lens strap 12, the stop hole 12a, the pad mounting portion 13, and the pad arm 14. You.

Next, the specific shape of the bracket J2 used in the configuration of the rimless glasses of the present embodiment is shown in FIGS. This bracket J2 is also a 0.7mm thick β
It is manufactured by punching a thin titanium plate. A lens strap 22 is formed at one end (the lens 4 side) of the narrow arm member 21, and the other end of the arm member 21 is formed at the other end of the arm member 21. Has a pair of knuckle plates 23 formed vertically symmetrically. The pair of knuckle plates 23 are bent up and down so as to face each other up and down in parallel with a slight gap about the center line of the arm section 21 as the axis of symmetry, so that the hinge piece (2
3 · 23) is formed (FIG. 5). Reference numeral 23a denotes a pot hole for inserting a fastening pivot shaft described later, and 23b denotes upper and lower knuckle plates 23.
Are cut out to adjust the distance between the knuckle plates 23 when the hinge pieces (23, 23) are formed by folding the hinge pieces (23, 23). Also, in the present embodiment, the lens 4 is mounted on the base of the lens strap 22 of the bracket J2.
An all-shaped outer edge contacting portion 24 to be brought into contact with the peripheral edge of is projected vertically symmetrically. The outer edge contact portion 24 of the bracket J2 is also used when the bracket J is punched out of a thin plate of β titanium, the above-mentioned arm portion 21, lens strap 22,
The knuckle plates 23, the pot holes 23a, and the slits 23b are formed at the same time.

FIG. 6 shows a specific shape of the temple member 3 used in the rimless glasses of the present embodiment. In the present embodiment, the temple member is also manufactured by punching a thin plate of β titanium having a thickness of 0.7 mm. The temple member 3 shown in FIG. 6 has an arc-shaped rotating piece 31 integrally formed on the side surface on the base end side, and a pot through which a later-described fastening pivot shaft is to be inserted at the center of the rotating piece 31. A hole 31a is opened. On the other hand, a modern 8 will be attached to the opposite end of the temple member 3 later, as shown in FIG.

As the pair of lenses 4 used in the rimless spectacles of this embodiment, a pair of lenses obtained by casting and molding a diethylene glycol bisallyl carbonate resin into a shape as shown in FIG. 1 is used. In the pair of lenses 4 thus obtained, a bridge fastening hole 41 is formed at a position where the lens strap 12 of the bridge member 1 is connected, and a smart fastening hole 42 is formed at a position where the lens strap 22 of the bracket J2 is to be connected. Keep it.

When assembling the rimless spectacles of the present embodiment using the above components, the following is performed. That is,
The pair of lenses 4 prepared as described above are fastened to each of the bridge fastening holes 41 adjacent to the two lenses 4 by filling the lens straps 12 at both left and right ends of the bridge member 1 bent into the shape shown in FIG. The front frame F is configured by being connected by the members 5 (bolts and nuts). On the other hand, the bracket J2 forms the take-out hinge pieces (23, 23) by twisting the roots of the upper and lower knuckle plates 23 and twisting the roots of the slits 23b so as to leave appropriate gaps so as to face each other up and down. Is bent into an L-shape approximately in the middle. Then, the bracket J thus bent is filled with the lens strap 22 into the first fastening hole 42 of the lens 4 of the front frame F, and is connected by the fastening member 5 (bolt / nut). Next, the hinge member (23, 23) of the bracket J2, which is connected to the front frame F and taken out to the eyepiece side, has the temple member 3 between the vertically opposed knuckle plates 23, 23. When the moving piece 31 is inserted and connected by the fastening pivot (rivet) 6, the temple member 3 is disposed on the eyepiece side of the front frame F so as to be foldable.

When the basic structure is assembled in this manner, the inner edge contact portion 15 and the outer edge contact portion 24 provided above and below the bridge member 1 and the bracket J are respectively twisted and brought into contact with the peripheral edge of the range 4. The pad arm 14 is twisted to fit the nose of the wearer so that the nose pad 7 is hooked on the pad mounting portion 13 at the tip as shown in FIG. A flat surface is erected by forming a twisted portion 31 on the end side, and a modern 8 is attached to the free end. Thus, the rimless glasses of the present embodiment are completed.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIG. In the present embodiment, the fastening member 5 is constituted by a set screw 51 and a resin sleeve 52 into which the shaft of the set screw 51 penetrates. The lens 4 is fixed by inserting and fixing the shaft of a set screw 51 from the opposite side of the lens into the tube hole of the resinous sleeve 52 inserted into the lens 4. FIG. 8 is an enlarged perspective explanatory view showing the state of the periphery of the nose pad from the eyepiece side, and shows the vicinity of the bridge member 1. Similarly, the lens 4 is fixed by inserting and fixing the shaft portion of the set screw 51 from the opposite side of the lens into the tube hole of the resin sleeve 52 inserted into the fixing hole 42 of the lens 4.

[Modification Example] Although the embodiments specifically disclosed in this specification are generally as described above, the present invention is not limited to the above-described embodiments, and is not limited to the appended claims. Various design changes are possible within the description.

For example, there is only one lens strap 12 at both ends of the bridge member 1 (bridge 11) and the lens strap 22 of the bracket J2 as specific examples in the above-described embodiment. 13 is fixed to the bridge fixing hole 41 and the intelligent fixing hole 42 of the lens 4 by one-point support.
It is also possible to form the lens straps 12 and 22 bifurcated from one end so that the lens 4 is supported at two points as shown in Japanese Utility Model Laid-Open No. 62-35324, "FIG. 1". Then, the inner edge contact portion 15 applied to the peripheral portion of the lens 4
Even if the outer edge contact portion 24 is omitted, the lens 4 can be stably supported. Therefore, such a design change,
Naturally, it belongs to the technical scope of the present invention.

In the above-described embodiment, the middle portion of the arm portion 21 of the bracket J2 is bent into an L-shape, and the take-out hinge pieces (23, 23) are carried to the eyepiece side. There is no need to bend to an L-shape, the arm piece 21 is made short, and the take-out hinge pieces (23/23) are protruded to the side of the front frame F. 3 may be hinged, and such a design change also belongs to the technical scope of the present invention.

The pad mounting portion 13 of the bridge member 1 shown in the above-described embodiment is stamped and formed into a horseshoe shape, and a joint plug (joint plug) of the nose pad 8 is provided inside the horseshoe-shaped mounting portion 13. ) Is inserted and hooked, but for example, a nose pad made of silicone rubber may be attached in a bag type, and such a design change is also included in the technical scope of the present invention. Obviously.

Further, in the above-described embodiment, the temple member 3 formed by punching a thin metal plate is shown. However, in the present invention, the temple member 3 does not necessarily need to be made of a metal material. It is possible to replace a conventionally known temple which is commonly used, and such a replacement naturally belongs to the technical scope of the present invention.

[0031]

As described above in detail with reference to the embodiments, in the present invention, since the bridge member and the bracket J obtained by punching a thin metal plate are employed as bent metal parts, the strength as a metal is obtained. We can provide high-performance rimless spectacles that are lightweight and have a very comfortable feeling when used while maintaining the texture, and the folded metal parts are welded and brazed with a metallized structure Is not required, so that a significant improvement in productivity and a reduction in manufacturing cost can be realized.

The rimless glasses of the present invention using the bent metal parts as described above exhibit tough elasticity,
Moreover, since it can be manufactured very lightly, it has a good wearing feeling and does not burden even if worn for a long time.

As described above, according to the present invention, it is possible to completely eliminate the problems that have been considered as disadvantages of the conventional rimless spectacles, and furthermore, it is economically and practically superior to the conventional rimless spectacles. Therefore, its industrial value is very large.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view showing an assembled state of rimless spectacles according to a first embodiment of the present invention.

FIG. 2 is a plan view of a bent metal part used as a bridge member in the rimless glasses of the first embodiment.

FIG. 3 is an explanatory perspective view of a state in which each component of the bent metal part shown in FIG. 2 is bent at a required angle and formed into a bridge member.

FIG. 4 is a plan view of a bent metal part used as a bracket for the rimless glasses of the first embodiment.

FIG. 5 is an explanatory perspective view showing a state where each component of the bent metal part shown in FIG. 4 is bent at a required angle and formed into a bracket.

FIG. 6 is a plan view of a temple member used for the rimless glasses of the first embodiment.

FIG. 7 is an enlarged perspective explanatory view showing a state around a nose pad in the rimless spectacles of the first embodiment in an enlarged manner from the eyepiece side.

FIG. 8 is an enlarged perspective explanatory view showing a state around a nose pad in the rimless glasses of the second embodiment, which is enlarged from the eyepiece side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bridge member 11 Bridge beam part 12 Lens strap 12a Stop hole 13 Pad mounting part 14 Pad arm 15 Inner edge contact part 2 Bracket information 21 Arm piece 22 Lens strap 23 Knuckle plate 23a Urn hole 23b Slit (23 ・ 23) Lifting hinge Piece 24 outer edge contact part 3 temple member 31 torsion part 31a pot hole 4 lens 41 (bridge) fastening hole 42 (t) fastening hole 5 fastening member 51 set screw 52 resin sleeve 6 fastening pivot 7 nose pad 8 Modern F front frame

Claims (9)

[Claims] At least one lens strap 12 is provided at each of the left and right ends of a bridge section 11, and a pair of left and right sections each having a pad mounting section 13 extending downward from near both sides of the bridge section 11. The pad arm 14 is integrally provided,
Each of the straps 12 and the pad arms 14 is a bridge member 1 made of a thin metal plate that is bent as necessary.
And at least one lens strap 22 at one end of the arm portion 21 and a pair of knuckle plates 23 formed symmetrically at the take-out end of the arm portion 21, and the pair of knuckle plates 23 are vertically parallel. The hinge piece (23.2
(3) a bracket 2 made of a thin metal plate; a temple member 3 having a rotating piece 31 that can be inserted between the knuckle plates 23 and 23 of the take-out hinge pieces; and the bridge member 1 A pair of lenses 4 each having a bridge attachment hole 41 at a position corresponding to the lens strap 12 of the first embodiment, and a second attachment hole 42 at a position corresponding to the lens strap 22 of the bracket J2.
And a pair of lenses 4 are provided in the bridge fastening holes 41 adjacent to both lenses 4 in a state where they are arranged side by side in the left and right directions. The left and right lenses 4 and the bridge member 1 are connected to each other by the fastening member 5 with the lens strap 12 being filled to form a front frame F, and the outside of the left and right lenses 4 in the front frame F. Located in the hole
Reference numeral 42 indicates a state in which the lens strap 22 of the bracket J is filled with the fastening member 5 so that the take-out hinge pieces (23, 23) face the eyepiece side. Between the knuckle plates 23 and 23 to include a mechanism in which the turning piece 31 of the temple member 3 is inserted and pivotally supported by the fastening pivot 6 to connect the temple member 3 in a foldable manner. Rimless spectacles using bent metal parts. 2. In the vicinity of the root of the lens strap 12 in the bridge member 1, an inner edge contact portion 15 to be in contact with the peripheral edge of the lens 4, and the lens strap 21 in the bracket J2.
2. The rimless spectacles using bent metal parts according to claim 1, wherein outer edge contact portions 24 to be brought into contact with the peripheral portion of the lens 4 are integrally provided near the root of the lens. 3. The rimless spectacles using bent metal parts according to claim 1, wherein the bridge member 1, the bracket J, and the temple member 3 are formed by punching a thin metal plate. 4. The rimless glasses using the bent metal parts according to claim 1, wherein the bridge member 1, the bracket J, and the temple member 3 are made of a thin titanium plate. 5. The fixing member 5 has a set screw 51 and the same set screw.
It consists of a resin sleeve 52 into which the shaft of 51 penetrates,
The shaft of a set screw (51) is inserted and fixed from the opposite side of the lens into a tube hole of the resinous sleeve (52) inserted into the fixing holes (41, 42) of the lens (4). Rimless glasses using the bent metal parts according to any one of the above. 6. A bendable punched metal sheet having a narrow bridge section 11, which is provided with at least one lens strap 12 on each of left and right ends of the bridge section 11, and the bridge section. A pair of left and right pad arms extending downward from both sides of the portion 11 and each having a pad mounting portion 13 at the distal end portion.
A bent metal part, wherein 14 is provided integrally to form the bridge member 1. 7. The folded metal part according to claim 6, wherein an inner edge contact portion 15 to be brought into contact with a peripheral portion of the lens 4 is integrally provided near a root of the lens strap 12 in the bridge member 1. 8. A bendable punched metal sheet having a narrow arm portion 21 and provided with at least one lens strap 22 at one end of the arm portion.
The other end of 21 has a pair of knuckle plates 23 symmetrically, and this pair of knuckle plates 23 is bent up and down so as to face each other in parallel so that the hinge piece (23 23) A bent metal part characterized by forming: 9. The bent metal part according to claim 8, wherein an outer edge contact portion to be brought into contact with a peripheral portion of the lens is integrally provided near a root of the lens strap in the bracket.