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WO1995023995A1 - Metallic rim of spectacles - Google Patents

Metallic rim of spectacles Download PDF

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Publication number
WO1995023995A1
WO1995023995A1 PCT/JP1995/000328 JP9500328W WO9523995A1 WO 1995023995 A1 WO1995023995 A1 WO 1995023995A1 JP 9500328 W JP9500328 W JP 9500328W WO 9523995 A1 WO9523995 A1 WO 9523995A1
Authority
WO
WIPO (PCT)
Prior art keywords
wide
lens
wire
rim
wide portion
Prior art date
Application number
PCT/JP1995/000328
Other languages
French (fr)
Japanese (ja)
Inventor
Tetsuo Yoshioka
Original Assignee
Tetsuo Yoshioka
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tetsuo Yoshioka filed Critical Tetsuo Yoshioka
Publication of WO1995023995A1 publication Critical patent/WO1995023995A1/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00Constructions of non-optical parts
    • G02C5/008Spectacles frames characterized by their material, material structure and material properties
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C1/00Assemblies of lenses with bridges or browbars
    • G02C1/06Bridge or browbar secured to or integral with closed rigid rims for the lenses
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00Non-optical adjuncts; Attachment thereof
    • G02C11/02Ornaments, e.g. exchangeable
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2200/00Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
    • G02C2200/10Frame or frame portions made from wire

Definitions

  • the present invention relates to a metal spectacle frame having a rim formed of a titanium-based wire, a nickel-based wire, a nickel-based wire, or another metal wire, and more particularly to providing a peripheral groove on the outer periphery of a lens and fitting the rim into the peripheral groove.
  • the present invention relates to an eyeglass frame capable of holding a lens with a thin rim.
  • Eyeglasses are required to be lightweight and not to obstruct the field of view.
  • a so-called Nyroll frame is known as an eyeglass frame that holds a lens with a thin rim.
  • the Nyroll frame has a structure in which the front rim is provided with left and right upper rims, a bridge, and a brace bar, and the lower rim is formed of metal wire or nylon wire (for example, Japanese Patent Publication Showa 6). (See Japanese Patent Publication No. 102222/1990).
  • a spectacle frame in which the upper rim and the lower rim are formed of a single metal wire, a spectacle frame that satisfies the above-mentioned demands was disclosed as a utility model published in Japan by the applicant of the present invention.
  • Japanese Patent Application Laid-Open No. 09-914 The structure disclosed in this publication is such that the lower rim is made thinner so as not to obstruct the view below, and the upper rim is made wider than the thickness of the lens to provide strength. It stands.
  • the width of the rim is continuously changed in an intermediate region between the thick upper rim and the thin lower rim.
  • the Nyroll frame because the upper field of view is obstructed by the upper rim, does not have the brightness and openness of the glasses without eyes, so it can be said that it satisfies the demand for lightweight and not to obstruct the view. Absent. Also, if the lower rim is made of a nipple wire, the wire may break during use, and if the lower rim is made of metal wire, it is difficult to process the joint between the upper rim and the lower rim. There are also problems. The structure of the Japanese Utility Model Publication No. 409-4, No. 1979, addresses the problem of joining the upper rim and the lower rim, but the upper rim is wider than the lens thickness. In addition, there is a drawback that the upper view is obstructed, and it is difficult to form an intermediate region where the thickness of the wire transitions smoothly, and distortion is generated.
  • An object of the present invention is to provide eyeglasses that are lightweight, have a sense of openness, and are excellent in a feeling of wearing, without causing problems in strength, rigidity, and durability. Disclosure of the invention
  • the entire periphery of the rim 2 is formed integrally from one metal wire, and the cross section thereof has a wide wide portion 21 and a narrow wire portion 22. It has.
  • the joints between the rims 2 and 3 of the rim 2, 3 2, the bridge 3 3 and the pad legs 36 are made to be wide, with the wide side 21 a on the side and the wide section 21 b on the bridge side.
  • the wire portions 22a and 22b are formed on the upper rim and the lower rim.
  • An inclined step 24 is formed between the wide portion 21 and the wire portion 22 and transitions from the wide portion 21 to the wire portion 22 at short intervals.
  • a ridge 27 is formed on the inner periphery of the wide part 21 on the extension of the wire part 22, and the wire part 22 and the ridge 27 of the wide part are provided on the outer peripheral edge of the lens 1 1 1 And holds lens 1.
  • the brace bar joint of the upper rim 25 The wide part between the two joints is called 2 ⁇ b.
  • the wire portion 22a on the upper rim side is formed from just outside the joint portion of the brace bar 34 to immediately adjacent to the joint portion of the chimney 21a.
  • the width of the wide portion 21 is preferably smaller than the thickness of the lens 1 at the portion where the wide portion contacts, and the front and rear sides of the wide portion 21 do not protrude from the front and rear surfaces of the lens 1 as much as possible.
  • the lens 1 is a convex lens
  • the rear side of the wide portion 21 is protruded, and the front edge is positioned on the same plane as the front surface of the lens 1 or a position retreated therefrom.
  • the upper rim 25 of the spectacle frame of the first structure is a wide portion 21.
  • the width of the wide portion 21 is made smaller than the thickness of the lens 1 at the portion where the wide portion contacts, so that both the front and rear sides of the wide portion 21 do not protrude from the front and rear surfaces of the lens 1.
  • the width of the wide portion 21 is wider than the thickness of the lens, such as when the lens 1 is a convex lens, the rear side of the wide portion 21 is projected from the rear surface of the lens, and the front Same structure as the front surface, which is located on the same surface or at a position retracted from the front.
  • the wire portion below the rim has a shorter length and a width wider than the thickness of the lens at the portion. It has a narrow wide portion 21c.
  • the strength and rigidity of the spectacles are maintained by both the integral rim 2 completely surrounding the periphery of the lens and the lens 1 itself.
  • the rim 2 has a thin wire portion 22 a, 22 b on both the upper rim 25 and the lower rim 26.
  • the decrease and the lack of rigidity are complemented by the lens 1 fitted in the rim 2.
  • the lens 1 and the rim 2 are integrated by fitting the circumferential groove 11 provided on the lens with the wire portion 22 of the rim and the ridge 27 of the wide portion, and complement each other to provide strength and rigidity. And hold.
  • the joint between the bridge 33 and the brace bar 34 that extends between the left and right rims is a wide portion 21b.
  • the joint between the rims 31 and 32 which is the portion between the rim and the temple, is also referred to as a wide portion 21a.
  • the wide portion 21 has a strength capable of receiving the mechanical force transmitted from the prism 33, the brace bar 34 or the temple, and a part of the transmitted mechanical force is applied to the lens 1. It acts to transmit.
  • the rim wire is used for the brace bar part in order to rationally transmit external force to the left and right rims connected by the bridge 33 and the brace bar 34.
  • the brace bar obstructs the upper field of view even if it is thin, it is reasonable to provide a wide portion 21b between the joint of the bridge 33 and the joint of the brace bar 34.
  • the upper rim and the lower rim other than the joints such as the bridge 33, the brace bar 34, and the brackets 31 and 32 are formed as thin wires 22 so that the lower part can be formed.
  • the upper field of view is greatly open as well as the field of view, giving the same brightness and openness as frameless glasses.
  • the joint between the pad leg 36 and the chimney 31 and the entire upper rim 25 between them are widened, but the width of the widened portion is made smaller than the thickness of the lens to make the lens wider.
  • the width of the wide part cannot be made smaller than the thickness of the lens, such as when the lens is a convex lens and the upper rim has a wide part, make the rear side of the wide part 21 protrude from the rear surface of the lens, and ⁇ has a structure that is located on the same plane as the front surface of the lens 1 or at a position retracted from it.
  • this structure in a spectacle frame that holds a lens with a small peripheral thickness, it is possible to achieve both excellent strength and visibility as much as possible.
  • the transition from the wide portion 21 of the rim to the wire portion 22 is performed at a short distance, thereby increasing the area of the wire portion 22 and reducing the weight of the frame.
  • the rim 2 needs to be bent into a shape that matches the outer shape of the lens after the wide portion 21 and the wire portion 22 are formed from the wire, but at the time of this bending, the rim width direction (lens thickness direction) It is also necessary to bend to In the eyeglass frame of the present invention in which the transition from the wide portion 21 to the wire portion 22 is performed at a short distance, it is easy to manufacture and bend a mold for bending a rim wire.
  • the mold side In the case where the transition from the wide part to the wire part is performed gently, the mold side must also be inclined in accordance with the gentle inclination, and there is an error in the rim line and the mold inclination of the gentle inclination part. And-Distortion is likely to occur in this gradient.
  • the mold since the transition between the wide portion of the rim wire and the wire portion is performed at a short distance, the mold is easy to manufacture, and distortion at the transition portion is less likely to occur.
  • the spectacle frame of the present invention since the wire portion 22 of the rim 2 is integrated with the surface of the lens 1 in a state where the lens is mounted and is almost inconspicuous, the spectacle frame is also very excellent in design. It is also possible to design the wide part 2 1a of the part connected to Ji 32 to be longer, to decorate that part, or to attach a decoration, and to design a highly decorative spectacle frame. You can also.
  • the short wide portion 2 ⁇ c provided on the wire portion below and outside the rim becomes a one-point decoration, and the short wide portion 21c is decorated with the decoration corresponding to the decoration of the armor. by attaching the decoration or, c more decorative highly spectacle frame is obtained
  • FIG. 1 is a perspective view of a rim portion of the first embodiment
  • FIG. 2 is a cross-sectional view of a rim and a lens
  • FIG. 3 is a perspective view of a rim portion of the second embodiment
  • FIG. 4 is a perspective view of a rim portion of the third embodiment
  • FIG. 5 is a sectional view of a main part of the third embodiment
  • FIG. 6 is a sectional view of a main part of the fourth embodiment.
  • FIG. 7 is a side view of the fifth embodiment. It is.
  • FIG. 8 is an explanatory diagram of a first example of a method of manufacturing a rim wire
  • FIG. 9 is an explanatory diagram of a second example of a method of manufacturing a rim wire
  • FIG. 10 is an example of a wide portion. It is an expanded sectional view shown.
  • FIG. 1 is a perspective view showing a rim portion of a first embodiment of the present invention with a lens removed.
  • FIG. 2 is a cross-sectional view showing a cross section of a wide portion and a wire portion of the rim in a state where a lens is fitted.
  • the lens 1 has a circumferential groove 11 on its outer periphery.
  • the rim 2 is made of a single metal wire bent so as to surround the outer periphery of the lens].
  • the ends 3 and 3 are joined to each other, and the bridge 33 and brace bar 3 4 are provided in the middle. And are joined.
  • the joints of the rims 3 1, 3 2, bridge 3 3, and brace bar 3 have wide sections 2 ⁇ (21 a and 21 b) with a flat cross section, and wide sections 2 1 a on the side of the rim.
  • the wire portions 22a and 22b are provided on the upper rim 25 and the lower rim 26 between the upper rim 25 and the wider portion 21b on the side of the bridge.
  • the transition portion 23 between the wire portion 22 (22a and 22b) and the wide portion 2] has an oblique step 24, and transitions from the wide portion 21 to the wire portion 22 at a short distance. are doing.
  • the wide section 21 and the wire section 22 each have a constant cross section.
  • a ridge 27 is formed on the inner surface of the wide portion 21 so as to extend the wire portion 22. Due to the presence of the ridge, the cross section of the wide portion 21 has a flat T-shape.
  • the wire portion 22 and the ridge 27 have a width that just fits into the peripheral groove ⁇ ⁇ ⁇ ⁇ of the lens, and when these are fitted in the peripheral groove 11, the wires 31 and 32 are fastened. By this, lens 1 is retained.
  • the wide portion 21 of the rim is provided with a short length at the joint of the rims 31 and 32, and has a relatively long length from the joint of the brace bar 34 to the joint of the pad leg 36. Is provided.
  • the wide portion 21b on the bridge side is located at the position just outside the joining position of the brace bar 34 and the position just below the joining position of the pad leg 36. It has shifted to 22a and 22b. Therefore, the lens 1 is held by being surrounded by the wire portion 22 for most of the outer periphery.
  • the wide portion 21 be narrower than the thickness of the lens as shown in FIG. 2 so that the rim 2 does not protrude from the surface of the lens even in the wide portion. If there is a problem with strength due to the narrow width of the wide part, such as when the edge of the lens is a convex lens and the thickness of the edge is thin, increase the height of the wide part or increase the width of the wider part to the back of the lens. (Face side) to ensure good appearance and visibility.
  • FIG. 3 shows a second embodiment of the present invention.
  • the eyeglass frame of the second embodiment does not have a brace bar.
  • the rim 2 transitions from the wide portion 21b to the wire portion 22a at a position above the junction of the bridge 33, and a wider area of the upper side of the lens is surrounded by the wire portion 22.
  • the Rukoto Therefore, the second embodiment is lighter and does not obstruct the upper visual field than the first embodiment, but is inferior in strength and rigidity.
  • FIG. 4 shows a third embodiment of the present invention.
  • the entire upper side of the rim of the eyeglass frame shown in FIG. 1 is a wide portion 21.
  • the wide portion 21 is narrower than the thickness of the portion where the wide portion 21 of the lens 1 contacts, and the front and rear portions of the wide portion 21 are retracted from the front and rear surfaces of the lens. It is in. Since the wide portion 21 is formed by press working as described later, a relief pattern can be formed on the outer surface of the upper wide portion 21 to enhance the decorativeness.
  • the wide-frame part 21 cannot be made narrower than the circumference of the lens when the wide-angle part 21 is used to hold a lens with a small peripheral thickness for the eyeglass frame with the wide part 21 as shown in FIG.
  • the ridge 27 is provided so as to be deviated toward the front edge of the wide portion 2 mm so that the front edge of the wide portion does not protrude from the front surface of the lens.
  • the rear part of the wide part protrudes from the back of the lens, but since this protruding part only blocks light that does not pass through the lens, the field of view of the lens is completely secured and the appearance is lightweight. The feeling is not impaired.
  • FIG. 7 shows a fifth embodiment of the present invention, and shows an example in which a short wide portion 21c is provided in a wire portion 22 below the outside of a rim 2. As shown in FIG. This short wide portion 21c is provided with a width smaller than the thickness of the lens at that portion.
  • the wire (rim wire) forming the rim 2 of the spectacle frame of the present invention can be manufactured by various methods.
  • the first method is by swaging and pressing, and the forming process is shown in FIG.
  • the two intermediate portions of the wire having a circular cross section shown in FIG. 8 (a) are stretched to a desired length by swaging to form wire portions 22a and 22b.
  • the portion 41 with the large diameter is formed into a flat T-shaped cross section by a press to form a wide portion 21 (FIG. 8 (c)).
  • an embossed pattern can be formed on the outside of the wide portion 21 (the portion on the back side of the paper in the figure) during the press working.
  • the rim wire of the spectacle frame according to the present invention can be manufactured most efficiently, and a rim wire having excellent strength can be obtained.
  • FIG. 9 shows the second manufacturing method.
  • a wire 42 having a flat T-shaped cross section corresponding to the cross-sectional shape of the wide portion 21 is obtained by drawing or roll rolling.
  • a T-shaped bar portion having a T-shaped cross section is cut out by cutting, turning, press pressing, or the like to form a wire portion 22 having a desired length.
  • a cross section of the wire portion 22 is finished by further performing a turning step.
  • the cross section of the drawn or rolled wire rod 42 must be cut. As shown in Fig.
  • a flat T-shaped T-shaped stem part 4 2a and a bar part 4 A shallow groove 43 is formed at the joint of 2b, and the height of the bar is cut or cut off along the cutting line a in the direction parallel to the bar at the bottom of this groove. Therefore, it is possible to form a wire portion which is low and is almost buried in the circumferential groove 11 of the lens.
  • the wire 22 is formed by press cutting, both sides of the flat T-shaped bar portion 42b are cut off by press cutting, and then the head of the T-shaped stem is deleted and cut. Finish the surface.
  • the wide part 21a of the lower rim 26 connected to the tom 32 is made longer, and a sculpture is provided in that part, or the jewel is lowered, A more decorative spectacle frame can be obtained.
  • each structure of the present invention described above it has an appearance that is not conscious of the rim, which is comparable to that of the frameless glasses, has a lightweight and open feeling that does not obstruct the view, and cannot be obtained with no glasses Eyeglasses having both strength and rigidity can be obtained.
  • a spectacle frame with higher decorativeness can be obtained.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

A frame of spectacles having thin metallic wire rims, which is light in weight, has an open feeling and has excellent fitting feeling and decorative property. An upper rim (25) and a lower rim (26) are integrally formed from one metallic wire material, which has a wide portion (21) and a narrow wire portion (22). Joint portions between end pieces (31, 32) of the rim (2) and between a bridge (33) and a pad leg (36) are wide portions, and at least the lower rim between the wide portion (21a) on the edge side and the wide portion (21b) on the bridge side is the wire portion (22). The wide portion (21) changes to the wire portion (22) with a small distance. A protuberance (27) is formed on the extension of the wire portion (22) on the inner periphery of the wide portion (21), and the wire portion (22) and the protuberance (27) fit into a circumferential groove (11) around the outer periphery of a lens (1) and keep the lens (1). The width of the wide portion (21) is preferably smaller than the thickness of the lens (1), and the front edge of the wide portion (21) is so disposed as not to protrude from the front surface of the lens (1).

Description

明 細 書 金属製眼鏡枠 技術分野  Description Metallic eyeglass frames Technical field
この発明は、 チタン系線材、 ニッケル系線材、 洋白系線材その他の金属線材で リムを形成した金属製眼鏡枠に関し、 特にレンズの外周に周溝を設けてこの周溝 にリムを嵌合させることにより、 細いリムでレンズを保持可能とした眼鏡枠に関 するものである。  The present invention relates to a metal spectacle frame having a rim formed of a titanium-based wire, a nickel-based wire, a nickel-based wire, or another metal wire, and more particularly to providing a peripheral groove on the outer periphery of a lens and fitting the rim into the peripheral groove. Thus, the present invention relates to an eyeglass frame capable of holding a lens with a thin rim.
背景技術 Background art
眼鏡は軽量であることと視野を妨げないこととが要望される。 この要望を満足 させるために、 細いリムでレンズを保持する眼鏡枠として、 ナイロール枠と呼ば れているものが知られている。 ナイロール枠は、 左右の上リムとプリ ッジ及びブ レースバーでフロントの強度を持たせ、 金属線材またはナイロン線材などによつ て下リムを形成した構造である (例えば日本国特許公開昭和 6 2年第 1 0 2 2 2 1号公報参照) 。  Eyeglasses are required to be lightweight and not to obstruct the field of view. In order to satisfy this demand, a so-called Nyroll frame is known as an eyeglass frame that holds a lens with a thin rim. The Nyroll frame has a structure in which the front rim is provided with left and right upper rims, a bridge, and a brace bar, and the lower rim is formed of metal wire or nylon wire (for example, Japanese Patent Publication Showa 6). (See Japanese Patent Publication No. 102222/1990).
上リムと下リムとを〗本の金属線材で形成した眼鏡枠において、 上記要望を満 たすようにした眼鏡枠として、 この出願人の考案に係る日本国実用新案公開昭和 5 7年第 4 0 9 1 4号公報に開示されたものがある。 この公報の構造は、 下リム を細く して下方の視界を妨げないようにし、 上リムをレンズの厚さより幅広く し て強度を持たせる構造であり、 その点ではナイロール枠と同一の技術思想に立つ ものである。 またこの公報記載のものでは、 太い上リムと細い下リムとの間の中 間領域でリムの幅を連続的に変化させている。  In a spectacle frame in which the upper rim and the lower rim are formed of a single metal wire, a spectacle frame that satisfies the above-mentioned demands was disclosed as a utility model published in Japan by the applicant of the present invention. There is one disclosed in Japanese Patent Application Laid-Open No. 09-914. The structure disclosed in this publication is such that the lower rim is made thinner so as not to obstruct the view below, and the upper rim is made wider than the thickness of the lens to provide strength. It stands. In this publication, the width of the rim is continuously changed in an intermediate region between the thick upper rim and the thin lower rim.
軽量であることと視野を妨げないという要望を最も満たす構造として緣なし眼 鏡がある。 緣なし眼鏡はリムを有しておらず、 レンズ自体にブリ ッジと智を取り 付けている。 軽量であることと視野を妨げないという要望を満たすには、 緣なし眼鏡が最も 良いが、 眼鏡にかかる機械的外力がレンズに作用するため、 強度および剛性が不 充分であり、 歪み等が出やすい。 またレンズとブリ ッジゃ智との接合部に応力が 集中し、 この接合部でレンズを破損しやすい。 One of the structures that best meets the demand for light weight and not to impede the field of view is the ophthalmic scope.緣 None glasses have no rim, and attach the bridge and wisdom to the lens itself. In order to satisfy the demand for light weight and not hindering the field of view, glasses without glasses are the best, but the mechanical and external forces acting on the glasses act on the lens, resulting in insufficient strength and rigidity and distortion. Cheap. In addition, stress concentrates on the joint between the lens and the bridge, and the lens is easily damaged at this joint.
一方、 ナイロール枠は、 上方の視野が上リムによって妨げられ、 緣なし眼鏡の ような明るさや開放感がないため、 軽量であることと視界を妨げないという要望 を充分満足しているとは言えない。 また、 下リムにナイ口ン線材を用いたもので は、 使用中に線材が切れることがあり、 下リムとして金属線材を用いたものは、 上リムと下リムの接合部分の処理が難しいという問題もある。 上記日本国実用新 案公開昭和 5 7年第 4 0 9 〗 4号公報の構造は、 この上リムと下リムの接合の問 題を解決しているが、 上リムがレンズの厚さより幅広いために上方の視界が妨げ られ、 また線材厚さが滑らかに移行している中間領域の成形が難しく、 歪みが生 じゃすいという欠点がある。  On the other hand, the Nyroll frame, because the upper field of view is obstructed by the upper rim, does not have the brightness and openness of the glasses without eyes, so it can be said that it satisfies the demand for lightweight and not to obstruct the view. Absent. Also, if the lower rim is made of a nipple wire, the wire may break during use, and if the lower rim is made of metal wire, it is difficult to process the joint between the upper rim and the lower rim. There are also problems. The structure of the Japanese Utility Model Publication No. 409-4, No. 1979, addresses the problem of joining the upper rim and the lower rim, but the upper rim is wider than the lens thickness. In addition, there is a drawback that the upper view is obstructed, and it is difficult to form an intermediate region where the thickness of the wire transitions smoothly, and distortion is generated.
この発明は、 強度や剛性や耐久性に問題を生ずることなく、 軽量で開放感がぁ り、 装着感に優れた眼鏡を得ることを課題としている。 発明の開示  An object of the present invention is to provide eyeglasses that are lightweight, have a sense of openness, and are excellent in a feeling of wearing, without causing problems in strength, rigidity, and durability. Disclosure of the invention
本発明の金属製眼鏡枠の第 1の構造は、 リム 2の全周が 1本の金属線材から一 体に成形されており、 その断面において幅広い幅広部 2 1 と幅狭いワイヤ部 2 2 とを備えている。 リム 2の智 3 〗、 3 2、 ブリ ッジ 3 3及びパッ ド脚 3 6の接合 部は幅広部とされ、 智側の幅広部 2 1 aとプリ ッジ側の幅広部 2 1 bとの間の上 リム及び下リムにワイヤ部 2 2 a及び 2 2 bが形成されている。 幅広部 2 1 とヮ ィャ部 2 2との間には傾斜した段差 2 4が形成されて短い間隔で幅広部 2 1から ワイヤ部 2 2へと移行している。 幅広部 2 1の内周にはワイヤ部 2 2の延長上に 突条 2 7が形成され、 ワイヤ部 2 2及び幅広部の突条 2 7がレンズ 1の外周縁に 設けた周溝 1 1に嵌入してレンズ 1を保持している。  In the first structure of the metal spectacle frame of the present invention, the entire periphery of the rim 2 is formed integrally from one metal wire, and the cross section thereof has a wide wide portion 21 and a narrow wire portion 22. It has. The joints between the rims 2 and 3 of the rim 2, 3 2, the bridge 3 3 and the pad legs 36 are made to be wide, with the wide side 21 a on the side and the wide section 21 b on the bridge side. The wire portions 22a and 22b are formed on the upper rim and the lower rim. An inclined step 24 is formed between the wide portion 21 and the wire portion 22 and transitions from the wide portion 21 to the wire portion 22 at short intervals. A ridge 27 is formed on the inner periphery of the wide part 21 on the extension of the wire part 22, and the wire part 22 and the ridge 27 of the wide part are provided on the outer peripheral edge of the lens 1 1 1 And holds lens 1.
ブレースバー 3 を設けるときは、 上リム 2 5のブレースバー接合部からパッ ド脚接合部に至る間を幅広部 2 〗 bとする。 このときは上リム側のワイヤ部 2 2 aは、 ブレースバー 3 4の接合部の直ぐ外側から智 2 1 aの接合部の直近までの 間に渡って形成される。 When installing the brace bar 3, use the brace bar joint of the upper rim 25 The wide part between the two joints is called 2〗 b. In this case, the wire portion 22a on the upper rim side is formed from just outside the joint portion of the brace bar 34 to immediately adjacent to the joint portion of the chimney 21a.
幅広部 2 1の幅は、 その幅広部が接する部分におけるレンズ 1 の厚さより狭く するのが好ましく、 可能な限り幅広部 2 1の前後緣が共にレンズ 1の前面および 後面から突出しないようにする。 しかしレンズ 1が凸レンズの場合など、 幅広部 The width of the wide portion 21 is preferably smaller than the thickness of the lens 1 at the portion where the wide portion contacts, and the front and rear sides of the wide portion 21 do not protrude from the front and rear surfaces of the lens 1 as much as possible. . However, when the lens 1 is a convex lens,
2 1の幅がレンズの緣の厚さより幅広くなるときは、 幅広部 2 1の後緣側を突出 させて、 前縁はレンズ 1の前面と同一面ないしこれより後退した位置に位置させ る。 When the width of 21 is wider than the thickness of the lens, the rear side of the wide portion 21 is protruded, and the front edge is positioned on the same plane as the front surface of the lens 1 or a position retreated therefrom.
本発明の金属製眼鏡枠の第 2の構造は、 第 1の構造の眼鏡枠の上リム 2 5を幅 広部 2 1 としたものである。 この場合において、 幅広部 2 1の幅をその幅広部が 接する部分におけるレンズ 1の厚さより狭く し、 幅広部 2 1の前後緣がともにレ ンズ 1の前面及び後面から突出しない構造としている。 またレンズ 1が凸レンズ の場合など、 幅広部 2 1の幅がレンズの緣の厚さより幅広くなる場合において、 幅広部 2 1の後緣側をレンズの後面から突出させて、 前緣はレンズ 1の前面と同 —面ないしこれより後退した位置に位置させる構造としている。  In the second structure of the metal spectacle frame of the present invention, the upper rim 25 of the spectacle frame of the first structure is a wide portion 21. In this case, the width of the wide portion 21 is made smaller than the thickness of the lens 1 at the portion where the wide portion contacts, so that both the front and rear sides of the wide portion 21 do not protrude from the front and rear surfaces of the lens 1. When the width of the wide portion 21 is wider than the thickness of the lens, such as when the lens 1 is a convex lens, the rear side of the wide portion 21 is projected from the rear surface of the lens, and the front Same structure as the front surface, which is located on the same surface or at a position retracted from the front.
本発明の金属製眼鏡枠の第 3の構造は、 上記第〗及び第 2の構造の眼鏡枠にお いて、 リムの外側下方のワイヤ部に短い長さでかつ当該部分におけるレンズの厚 さより幅狭い幅広部 2 1 cを設けたものである。  In the third structure of the metal spectacle frame of the present invention, in the spectacle frames of the first and second structures, the wire portion below the rim has a shorter length and a width wider than the thickness of the lens at the portion. It has a narrow wide portion 21c.
この発明の眼鏡枠では、 レンズの周囲を完全に囲繞する一体のリム 2とレンズ 1自体との両者によって眼鏡の強度と剛性が保持される。  In the spectacle frame of the present invention, the strength and rigidity of the spectacles are maintained by both the integral rim 2 completely surrounding the periphery of the lens and the lens 1 itself.
第 1の構造の眼鏡枠では、 リム 2は上リム 2 5と下リム 2 6との両方に細いヮ ィャ部 2 2 a、 2 2 bを備えている力 このワイヤ部分における枠側の強度低下 及び剛性不足は、 リム 2に嵌めこまれたレンズ 1が補完する。 レンズ 1 とリム 2 とは、 レンズに設けた周溝 1 1 とリムのワイヤ部 2 2及び幅広部の突条 2 7とが 嵌合することにより一体化され、 互いに補完し合って強度と剛性とを保持する。 左右のリムを繫ぐプリ ッジ 3 3及びブレースバ— 3 4の接合部分は幅広部 2 1 bとされている。 またリムとテンプルとを繫ぐ部分である智 3 1、 3 2の接合部 も幅広部 2 1 aとされている。 この幅広部 2 1はプリ ッジ 3 3やブレースバー 3 4ないしテンプルから伝達される機械的な力を受けることができる強度を有し、 かつ伝達された機械的力の一部をレンズ 1に伝達する作用をしている。 In the spectacle frame of the first structure, the rim 2 has a thin wire portion 22 a, 22 b on both the upper rim 25 and the lower rim 26. The decrease and the lack of rigidity are complemented by the lens 1 fitted in the rim 2. The lens 1 and the rim 2 are integrated by fitting the circumferential groove 11 provided on the lens with the wire portion 22 of the rim and the ridge 27 of the wide portion, and complement each other to provide strength and rigidity. And hold. The joint between the bridge 33 and the brace bar 34 that extends between the left and right rims is a wide portion 21b. In addition, the joint between the rims 31 and 32, which is the portion between the rim and the temple, is also referred to as a wide portion 21a. The wide portion 21 has a strength capable of receiving the mechanical force transmitted from the prism 33, the brace bar 34 or the temple, and a part of the transmitted mechanical force is applied to the lens 1. It acts to transmit.
ブレースバー 3 4を設けた眼鏡枠では、 ブリ ッジ 3 3とブレースバー 3 4とに よって連結される左右のリムへの外力の伝達を合理的に行うため、 及びブレース バー部分はリム線を細く してもブレースバーによって上方視界が妨げられること に鑑み、 プリ ッジ 3 3の接合部とブレースバー 3 4の接合部の間を幅広部 2 1 b とするのが合理的である。  In the spectacle frame provided with the brace bar 34, the rim wire is used for the brace bar part in order to rationally transmit external force to the left and right rims connected by the bridge 33 and the brace bar 34. In view of the fact that the brace bar obstructs the upper field of view even if it is thin, it is reasonable to provide a wide portion 21b between the joint of the bridge 33 and the joint of the brace bar 34.
第 1の構造では、 プリ ッジ 3 3、 ブレースバ— 3 4及び智 3 1、 3 2などの接 合部以外の上リム及び下リムの部分を細いワイヤ部 2 2とすることにより、 下方 の視界とともに上方の視界も大きく開放され、 縁なし眼鏡と同様な明るさと開放 感を付与している。  In the first structure, the upper rim and the lower rim other than the joints such as the bridge 33, the brace bar 34, and the brackets 31 and 32 are formed as thin wires 22 so that the lower part can be formed. The upper field of view is greatly open as well as the field of view, giving the same brightness and openness as frameless glasses.
また、 第 2の構造では、 パッ ド脚 3 6及び智 3 1の接合部ならびにその間の上 リム 2 5全体を幅広部としているが、 この幅広部の幅をレンズの厚さより狭く し てレンズの前後面から突出しない構造とすることにより、 上方視界を実質上損な うことなく眼鏡枠により安定な強度を付与している。 すなわち幅広部の幅がレン ズの厚さ内に納まっているため、 いずれにしてもレンズの周面を通る光は屈折し て有効な視界とはならないのであるから、 上リムが実質上視界を妨げることがな く、 従来のナイロール枠等に比べてはるかに良好な上方視界が確保できる。 上リムを幅広部とした構造において、 レンズが凸レンズである場合など、 幅広 部の幅をレンズの厚さより狭くできないときは、 幅広部 2 1の後緣側をレンズの 後面から突出させて、 前緣はレンズ 1 の前面と同一面ないしこれより後退した位 置に位置させる構造が採用される。 この構造により周緣厚さの薄いレンズを保持 する眼鏡枠において、 可及的に良好な強度と視界とを両立させることができる。 さらにこの発明では、 上記の各構造においてリムの幅広部 2 1からワイヤ部 2 2への移行を短い距離で行わせることにより、. ワイヤ部 2 2の領域を広く し、 フ レームを軽量にするとともに、 できるだけ視野が妨げられないようにしている。 リム 2は、 線材から幅広部 2 1及びワイヤ部 2 2を成形した後、 レンズの外周 形状に合わせた形に屈曲する必要があるが、 この屈曲時にリムの幅方向 (レンズ の厚さ方向) への曲げも必要である。 幅広部 2 1からワイヤ部 2 2への移行を短 い距離で行ったこの発明の眼鏡枠は、 リム線を屈曲させるための金型の製作及び 屈曲作業が容易である。 幅広部からワイャ部への移行を緩やかに行つたものでは 、 その緩やかな傾斜に合わせて金型側も傾斜させねばならず、 緩やかに傾斜した 部分のリム線と金型の勾配に誤差があると、 - この勾配部分に歪みが生じやすい。 この発明の眼鏡枠では、 リム線の幅広部とワイヤ部との移行を短い距離で行って いるため、 金型の製作が容易で、 その移行部の歪みも生じにくい。 In the second structure, the joint between the pad leg 36 and the chimney 31 and the entire upper rim 25 between them are widened, but the width of the widened portion is made smaller than the thickness of the lens to make the lens wider. By adopting a structure that does not protrude from the front and rear surfaces, a more stable strength is given to the spectacle frame without substantially impairing the upper view. In other words, since the width of the wide portion is within the thickness of the lens, the light passing through the peripheral surface of the lens is refracted in any case and is not an effective field of view. Without obstruction, it is possible to secure a much better upward view compared to a conventional nail roll frame or the like. If the width of the wide part cannot be made smaller than the thickness of the lens, such as when the lens is a convex lens and the upper rim has a wide part, make the rear side of the wide part 21 protrude from the rear surface of the lens, and緣 has a structure that is located on the same plane as the front surface of the lens 1 or at a position retracted from it. With this structure, in a spectacle frame that holds a lens with a small peripheral thickness, it is possible to achieve both excellent strength and visibility as much as possible. Further, according to the present invention, in each of the above structures, the transition from the wide portion 21 of the rim to the wire portion 22 is performed at a short distance, thereby increasing the area of the wire portion 22 and reducing the weight of the frame. At the same time, we try to keep the field of view as unobstructed as possible. The rim 2 needs to be bent into a shape that matches the outer shape of the lens after the wide portion 21 and the wire portion 22 are formed from the wire, but at the time of this bending, the rim width direction (lens thickness direction) It is also necessary to bend to In the eyeglass frame of the present invention in which the transition from the wide portion 21 to the wire portion 22 is performed at a short distance, it is easy to manufacture and bend a mold for bending a rim wire. In the case where the transition from the wide part to the wire part is performed gently, the mold side must also be inclined in accordance with the gentle inclination, and there is an error in the rim line and the mold inclination of the gentle inclination part. And-Distortion is likely to occur in this gradient. In the spectacle frame of the present invention, since the transition between the wide portion of the rim wire and the wire portion is performed at a short distance, the mold is easy to manufacture, and distortion at the transition portion is less likely to occur.
この発明の眼鏡枠は、 レンズ装着状態でリム 2のワイヤ部 2 2がレンズ 1 の緣 と一体化されてほとんど目立たない状態となるため、 デザィ ン的にも非常に優れ たものとなる。 また智 3 2に連なる部分の幅広部 2 1 aを長めに設計してその部 分に装飾を施したり、 飾りを取りつけたりするということも可能であり、. 装飾性 の高い眼鏡枠をデザィ ンすることもできる。  In the spectacle frame of the present invention, since the wire portion 22 of the rim 2 is integrated with the surface of the lens 1 in a state where the lens is mounted and is almost inconspicuous, the spectacle frame is also very excellent in design. It is also possible to design the wide part 2 1a of the part connected to Ji 32 to be longer, to decorate that part, or to attach a decoration, and to design a highly decorative spectacle frame. You can also.
第 3の構造では、 リムの外側下方のワイヤ部に設けた短い幅広部 2 〗 cがワン ポイ ントの装飾となり、 この短い幅広部 2 1 cに智ゃ鎧の装飾と対応させた装飾 を施したり飾りを取り付けることにより、 より装飾性の高い眼鏡枠が得られる c In the third structure, the short wide portion 2〗 c provided on the wire portion below and outside the rim becomes a one-point decoration, and the short wide portion 21c is decorated with the decoration corresponding to the decoration of the armor. by attaching the decoration or, c more decorative highly spectacle frame is obtained
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 第 1実施例のリム部分の斜視図であり、 第 2図は、 リムとレンズの 断面図である。 第 3図は、. 第 2実施例のリム部分の斜視図である。 第 4図は、. 第 3実施例のリム部分の斜視図であり、 第 5図は第 3実施例の要部の断面図である 。 第 6図は、. 第 4実施例の要部の断面図である 第 7図は、. 第 5実施例の側面図 である。 第 8図は、 リム線の製造方法の第 1例の説明図であり、 第 9図は、 リム 線の製造方法の第 2例の説明図、. 第 1 0図は、 幅広部の一例を示す拡大断面図で ある。 発明を実施するための最良の形態 FIG. 1 is a perspective view of a rim portion of the first embodiment, and FIG. 2 is a cross-sectional view of a rim and a lens. FIG. 3 is a perspective view of a rim portion of the second embodiment. FIG. 4 is a perspective view of a rim portion of the third embodiment, and FIG. 5 is a sectional view of a main part of the third embodiment. FIG. 6 is a sectional view of a main part of the fourth embodiment. FIG. 7 is a side view of the fifth embodiment. It is. FIG. 8 is an explanatory diagram of a first example of a method of manufacturing a rim wire, FIG. 9 is an explanatory diagram of a second example of a method of manufacturing a rim wire, and FIG. 10 is an example of a wide portion. It is an expanded sectional view shown. BEST MODE FOR CARRYING OUT THE INVENTION
第 1図はこの発明の第 1実施例のリム部分をレンズを外した状態で示す斜視図 である。 第 2図はリムの幅広部とワイヤ部の断面をレンズを嵌合した状態で示す 断面図である。  FIG. 1 is a perspective view showing a rim portion of a first embodiment of the present invention with a lens removed. FIG. 2 is a cross-sectional view showing a cross section of a wide portion and a wire portion of the rim in a state where a lens is fitted.
レンズ 1 はその外周に周溝 1 1を備えている。 リム 2はレンズ】 の外周を囲繞 するように屈曲された 1本の金属線材からなり、. その両端に智 3 〗、 3 2が接合 され、 中間部にブリ ッジ 3 3とブレースバー 3 4とが接合されている。 リムの智 3 1、 3 2、 ブリ ッジ 3 3及びブレースバー 3 の接合部分は断面が偏平な幅広 部 2 〗 (2 1 a及び 2 1 b ) とされ、 智側の幅広部 2 1 aとプリ ッジ側の幅広部 2 1 bとの間の上リ ム 2 5及び下リ ム 2 6にワイヤ部 2 2 a及び 2 2 bが設けら れている。 ワイヤ部 2 2 ( 2 2 a及び 2 2 b ) と幅広部 2 】 との移行部 2 3は、 斜めの段差 2 4を有し、 短い距離で幅広部 2 1からワイヤ部 2 2へと移行してい る。 幅広部 2 1及びワイヤ部 2 2は、 それぞれ断面が一定である。  The lens 1 has a circumferential groove 11 on its outer periphery. The rim 2 is made of a single metal wire bent so as to surround the outer periphery of the lens]. The ends 3 and 3 are joined to each other, and the bridge 33 and brace bar 3 4 are provided in the middle. And are joined. The joints of the rims 3 1, 3 2, bridge 3 3, and brace bar 3 have wide sections 2〗 (21 a and 21 b) with a flat cross section, and wide sections 2 1 a on the side of the rim. The wire portions 22a and 22b are provided on the upper rim 25 and the lower rim 26 between the upper rim 25 and the wider portion 21b on the side of the bridge. The transition portion 23 between the wire portion 22 (22a and 22b) and the wide portion 2] has an oblique step 24, and transitions from the wide portion 21 to the wire portion 22 at a short distance. are doing. The wide section 21 and the wire section 22 each have a constant cross section.
幅広部 2 1の内面にはワイヤ部 2 2を延長する形で突条 2 7が形成されており 、 この突条の存在によって幅広部 2 〗の断面は偏平な T形となっている。 ワイヤ 部 2 2及び突条 2 7は、 レンズの周溝〗 〗 に丁度嵌合する幅を有し、 これらを周 溝 1 1に嵌合させた状態で智 3 1 と 3 2とを締結することにより、 レンズ 1を保 持する。  A ridge 27 is formed on the inner surface of the wide portion 21 so as to extend the wire portion 22. Due to the presence of the ridge, the cross section of the wide portion 21 has a flat T-shape. The wire portion 22 and the ridge 27 have a width that just fits into the peripheral groove〗 レ ン ズ of the lens, and when these are fitted in the peripheral groove 11, the wires 31 and 32 are fastened. By this, lens 1 is retained.
リ ム 2のブリ ッジ 3 3の下方には、 パッ ド 3 5を支持するパッ ド脚 3 6が接合 されている。 リムの幅広部 2 1は智 3 1 、 3 2の接合部に短い長さで設けられ、 ブレースバー 3 4の接合部からパッ ド脚 3 6の接合部に至る間に比較的長い長さ で設けられている。 このブリ ッジ側の幅広部 2 1 bは、 ブレースバー 3 4の接合 位置のすぐ外側の位置及びパッ ド脚 3 6の接合位置のすぐ下側の位置でワイヤ部 2 2 a、 2 2 bに移行している。 従ってレンズ 1はその外周の大部分がヮィャ部 2 2で囲繞されて保持されることとなる。 Below the bridge 33 of the rim 2, a pad leg 36 for supporting the pad 35 is joined. The wide portion 21 of the rim is provided with a short length at the joint of the rims 31 and 32, and has a relatively long length from the joint of the brace bar 34 to the joint of the pad leg 36. Is provided. The wide portion 21b on the bridge side is located at the position just outside the joining position of the brace bar 34 and the position just below the joining position of the pad leg 36. It has shifted to 22a and 22b. Therefore, the lens 1 is held by being surrounded by the wire portion 22 for most of the outer periphery.
幅広部 2 1は、 第 2図に示すようにレンズの緣の厚さより狭く して、. 幅広部に おいてもリム 2がレンズ ] の面から突出しないようにするのが望ましいが、 レン ズが凸レンズで縁の厚さが薄い場合など、 幅広部の幅が狭くなつて強度上の問題 が生ずるときは、 幅広部の高さを高くするかまたはレンズ厚さより広くなつた分 をレンズの裏側 (顔面側) に張り出させるようにして、 良好な外観と視界とを確 保するようにする。  It is desirable that the wide portion 21 be narrower than the thickness of the lens as shown in FIG. 2 so that the rim 2 does not protrude from the surface of the lens even in the wide portion. If there is a problem with strength due to the narrow width of the wide part, such as when the edge of the lens is a convex lens and the thickness of the edge is thin, increase the height of the wide part or increase the width of the wider part to the back of the lens. (Face side) to ensure good appearance and visibility.
第 3図はこの発明の第 2実施例を示したもので、 この第 2実施例の眼鏡枠はブ レースバ—を有していない。 リム 2は、 ブリ ッジ 3 3の接合部の上方の位置で幅 広部 2 1 bからワイヤ部 2 2 aに移行しており、 レンズの上辺のより広い範囲が ワイヤ部 2 2で囲繞されることとなる。 従ってこの第 2実施例のものは、 第 1実 施例のものよりより軽量でかつ上方の視野を妨げないが、 強度及び剛性の点では 劣る。  FIG. 3 shows a second embodiment of the present invention. The eyeglass frame of the second embodiment does not have a brace bar. The rim 2 transitions from the wide portion 21b to the wire portion 22a at a position above the junction of the bridge 33, and a wider area of the upper side of the lens is surrounded by the wire portion 22. The Rukoto. Therefore, the second embodiment is lighter and does not obstruct the upper visual field than the first embodiment, but is inferior in strength and rigidity.
第 4図はこの発明の第 3実施例を示したもので、 この第 3実施例の眼鏡枠は、 第 1図に示した眼鏡枠のリムの上辺全体を幅広部 2 1としたものである。 幅広部 2 1 は第 5図に示すように、 レンズ 1の幅広部 2 1が接する部分の厚さより幅狭 く、 幅広部 2 1の前緣及び後緣はレンズの前面および後面から後退した位置にあ る。 幅広部 2 1は後述するようにプレス加工により成形されるので、 上緣の幅広 部 2 1の外面に浮き彫り模様を成形して装飾性を高めることもできる。  FIG. 4 shows a third embodiment of the present invention. In the eyeglass frame of the third embodiment, the entire upper side of the rim of the eyeglass frame shown in FIG. 1 is a wide portion 21. . As shown in FIG. 5, the wide portion 21 is narrower than the thickness of the portion where the wide portion 21 of the lens 1 contacts, and the front and rear portions of the wide portion 21 are retracted from the front and rear surfaces of the lens. It is in. Since the wide portion 21 is formed by press working as described later, a relief pattern can be formed on the outer surface of the upper wide portion 21 to enhance the decorativeness.
上辺を幅広部 2 1 とした眼鏡枠で周緣の厚さの薄い遠視用のレンズを保持する 場合において、 幅広部 2 1の幅をレンズの周緣の厚さより狭くできないときは、 第 6図に示すように凸条 2 7を幅広部 2 〗の前縁側に偏倚させて設け、 幅広部の 前縁がレンズの前面から突出しないようにする。 このとき幅広部の後緣はレンズ の背面から突出することとなるが、 この突出部はレンズを通らない光を遮るのみ であるから、. レンズの視野は完全に確保され、 また外観上の軽量感も損なわれな い。 第 7図はこの発明の第 5実施例を示したもので、 リム 2の外側下方のワイヤ部 2 2に短い幅広部 2 1 cを設けた例を示したものである。 この短い幅広部 2 1 c はその部分のレンズの厚さより狭い幅で設ける。 この短い幅広部 2 】 cには智 3 I、 3 2ゃ證 3 7の装飾と関連づけた装飾を設けることにより、 特に女性用眼鏡 枠において装飾性の高い眼鏡枠を得ることができる。 If the wide-frame part 21 cannot be made narrower than the circumference of the lens when the wide-angle part 21 is used to hold a lens with a small peripheral thickness for the eyeglass frame with the wide part 21 as shown in FIG. As described above, the ridge 27 is provided so as to be deviated toward the front edge of the wide portion 2 mm so that the front edge of the wide portion does not protrude from the front surface of the lens. At this time, the rear part of the wide part protrudes from the back of the lens, but since this protruding part only blocks light that does not pass through the lens, the field of view of the lens is completely secured and the appearance is lightweight. The feeling is not impaired. FIG. 7 shows a fifth embodiment of the present invention, and shows an example in which a short wide portion 21c is provided in a wire portion 22 below the outside of a rim 2. As shown in FIG. This short wide portion 21c is provided with a width smaller than the thickness of the lens at that portion. By providing the short wide part 2] c with decorations associated with the decoration of Ji 3 I, 32 3 ゃ 37, it is possible to obtain a highly decorative spectacle frame, especially for a female spectacle frame.
この発明の眼鏡枠のリム 2を形成する線材 (リム線) は種々の方法で製作する ことができる。 第 1の方法はスエージングとプレスによるもので、 その成形工程 を第 8図に示す。 第 8図 (a ) に示す断面円形の線材の中間部二箇所をスエージ ングにより所望の長さに延伸してワイヤ部 2 2 a、 2 2 bを作る。 その後径が太 いままとなつている部分 4 1をプレスで断面偏平 T形に形成して幅広部 2 1 とす る (第 8図 (c ) ) 。 前述したように、 このプレス加工時に幅広部 2 1の外側 ( 図で紙面裏側となっている部分) に浮き彫り模様を形成することができる。 この 方法によれば、 本発明にかかる眼鏡枠のリム線を最も効率良く製作することがで きると共に、 強度的にも優れたものが得られる。  The wire (rim wire) forming the rim 2 of the spectacle frame of the present invention can be manufactured by various methods. The first method is by swaging and pressing, and the forming process is shown in FIG. The two intermediate portions of the wire having a circular cross section shown in FIG. 8 (a) are stretched to a desired length by swaging to form wire portions 22a and 22b. Thereafter, the portion 41 with the large diameter is formed into a flat T-shaped cross section by a press to form a wide portion 21 (FIG. 8 (c)). As described above, an embossed pattern can be formed on the outside of the wide portion 21 (the portion on the back side of the paper in the figure) during the press working. According to this method, the rim wire of the spectacle frame according to the present invention can be manufactured most efficiently, and a rim wire having excellent strength can be obtained.
第 2の製造方法を第 9図に示す。 この方法は引き抜きまたはロール圧延によつ て幅広部 2 1の断面形状に相当する偏平 T形断面の線材 4 2を得る。 次に切削、 旋削又はプレス押切り等により T形断面の T字のバ一の部分を切除して、 所望長 さのワイヤ部 2 2を形成する。 プレス押切りによりワイヤ部 2 2を形成したとき は、 さらに旋削工程を加えてワイヤ部 2 2の断面を仕上げる。 この方法でリム線 を製造するときは、 引き抜きまたはロール圧延した線材 4 2の断面を、. 第 1 0図 に示すように偏平 T形の T字のステムの部分 4 2 aとバーの部分 4 2 bの連接部 に浅い溝 4 3が形成される形状とし、 この溝の底部分でバーと平行な方向の切断 線 aでバーの部分 4 2 bを切断ないし切除することにより、 高さの低い従ってレ ンズの周溝 1 1にほぼ埋没するワイヤ部を成形することができる。 プレス押切り によってワイヤ部 2 2を成形するときは、 偏平 T形のバーの部分 4 2 bの両側部 分をプレス押切りによって切除し、 次いで T字のステムの頭の部分を削除して断 面を仕上げる。 第 1図ないし第 7図の眼鏡枠において、 下リム 2 6の智 3 2に連接する部分の 幅広部 2 1 aを長く して、 その部分に彫刻を設けたり、 宝石を下げたりして、 よ り装飾性の高い眼鏡枠を得ることができる。 産業上の利用可能性 FIG. 9 shows the second manufacturing method. According to this method, a wire 42 having a flat T-shaped cross section corresponding to the cross-sectional shape of the wide portion 21 is obtained by drawing or roll rolling. Next, a T-shaped bar portion having a T-shaped cross section is cut out by cutting, turning, press pressing, or the like to form a wire portion 22 having a desired length. When the wire portion 22 is formed by press cutting, a cross section of the wire portion 22 is finished by further performing a turning step. When manufacturing a rim wire by this method, the cross section of the drawn or rolled wire rod 42 must be cut. As shown in Fig. 10, a flat T-shaped T-shaped stem part 4 2a and a bar part 4 A shallow groove 43 is formed at the joint of 2b, and the height of the bar is cut or cut off along the cutting line a in the direction parallel to the bar at the bottom of this groove. Therefore, it is possible to form a wire portion which is low and is almost buried in the circumferential groove 11 of the lens. When the wire 22 is formed by press cutting, both sides of the flat T-shaped bar portion 42b are cut off by press cutting, and then the head of the T-shaped stem is deleted and cut. Finish the surface. In the spectacle frame of FIG. 1 to FIG. 7, the wide part 21a of the lower rim 26 connected to the tom 32 is made longer, and a sculpture is provided in that part, or the jewel is lowered, A more decorative spectacle frame can be obtained. Industrial applicability
以上説明したこの発明の各構造によれば、 縁なし眼鏡に比べても遜色のないリ ムを意識させない外観と、 軽量で視界を妨げない開放感を備え、 かつ緣なし眼鏡 では得ることのできない強度と剛性とを兼ね備えた眼鏡を得ることができる。 ま た明るく開放的なデザィ ンが可能であるとともに、 'プリ ッジゃテンプルとの接合 部にも強度上及びデザィ ン上の無理がなく、 装着時の外観が非常に優れた眼鏡枠 を得ることができる。 さらに、 広い視界と開放感を備えた眼鏡枠において、 より 装飾性の高い眼鏡枠を得ることができる。  According to each structure of the present invention described above, it has an appearance that is not conscious of the rim, which is comparable to that of the frameless glasses, has a lightweight and open feeling that does not obstruct the view, and cannot be obtained with no glasses Eyeglasses having both strength and rigidity can be obtained. In addition to being capable of bright and open design, it is possible to obtain a spectacle frame with a very good appearance when attached, with no difficulty in strength and design at the joint with the bridge and temple. be able to. Furthermore, in a spectacle frame having a wide field of view and a sense of openness, a spectacle frame with higher decorativeness can be obtained.

Claims

請 求 の 範 囲 The scope of the claims
1 . 外周緣に周溝 αυを設けたレンズ(υ を保持する金属製リム(2) を備え、 こ のリムは全周が〗本の金属線材から一体成形されており、 その断面において幅広 い幅広部 (21)と幅狭いワイヤ部 (22)とを備え、 幅広部 (21)の内周にはワイヤ部 (2 2)の延長上に突条(27)を有し、 リムの両側の智、 ブリ ッジ及びパッ ド脚の接合部 は幅広部とされ、 智側の幅広部(21a) とブリ ッジ側の幅広部(21 b) との間の上リ ム(25)及び下リム (26)にワイヤ部(22a, 22)を有し、 幅広部(21 )とワイヤ部(22)と の間には傾斜した段差 (24)が形成されて短い間隔で幅広部(21)からワイヤ部(22) へと移行しており、 ワイヤ部(22)及び幅広部の突条(27)が周溝(1 1)に嵌入してレ ンズ (1) を保持する、 金属製眼鏡枠。 1. A lens provided with a circumferential groove α 緣 on the outer circumference (a metal rim (2) for holding the lens is provided. This rim is integrally formed from a single metal wire over its entire circumference, and its section is wide. It has a wide part (21) and a narrow wire part (22). The inner part of the wide part (21) has a ridge (27) on the extension of the wire part (22). The joint between the wisdom, bridge and pad legs is a wide part, and the upper rim (25) and the lower rim between the wide part on the wisdom side (21a) and the wide part on the bridge side (21b) The rim (26) has wire portions (22a, 22), and an inclined step (24) is formed between the wide portion (21) and the wire portion (22) so that the wide portions (21) are formed at short intervals. To the wire part (22), and the wire part (22) and the ridge (27) of the wide part fit into the circumferential groove (11) to hold the lens (1). Frame.
2 . ブレースバー(34)を備え、 上リム (25)のブレースバ一接合部からパッ ド脚接 合部に至る間を幅広部 (21 b) とした、 請求の範囲第 1項記載の金属製眼鏡枠。 2. The metal part according to claim 1, comprising a brace bar (34), and a wide portion (21b) between the brace bar joint of the upper rim (25) and the pad leg joint is formed. Eyeglass frames.
3 . 幅広部(21)の幅が当該幅広部が接する部分におけるレンズ(1 ) の厚さより狭 く、 幅広部(21)の前後緣は共にレンズ α) の面と同一面ないしこれより後退した 位置にある、 請求の範囲第 1項または第 2項記載の金属製眼鏡枠。 3. The width of the wide portion (21) is smaller than the thickness of the lens (1) at the portion where the wide portion contacts, and the front and rear sides of the wide portion (21) are both flush with the surface of the lens α) or receded therefrom. The metal spectacle frame according to claim 1 or 2, wherein the metal spectacle frame is located at a position.
4 . 幅広部(21)の幅が当該幅広部が接する部分におけるレンズ(1 ) の厚さより広 く、 幅広部 (21)の前縁はレンズ(1) の前面と同一面ないしこれより後退した位置 にある、 請求の範囲第 1項または第 2項記載の金属製眼鏡枠。  4. The width of the wide portion (21) is wider than the thickness of the lens (1) at the portion where the wide portion contacts, and the leading edge of the wide portion (21) is flush with or inward from the front surface of the lens (1). 3. The metal spectacle frame according to claim 1, wherein the metal spectacle frame is located at a position.
5 . 外周緣に周溝(11)を設けたレンズ(1 ) を保持する金属製リム(2) を備え、 こ のリムは全周が 1本の金属線材から一体成形されており、 その断面において幅広 い幅広部 (21)と幅狭いワイヤ部 (22)とを備え、 幅広部 (21)の内周にはワイヤ部(2 2)の延長上に突条(27)を有し、 リムの両側の智、 プリ ッジ及びパッ ド脚の接合部 及びその間の上リム (25)は幅広部とされ、 この幅広部は当該幅広部が接する部分 におけるレンズ(1) の厚さより幅狭に成形されて、 当該幅広部の前後緣は共にレ ンズ(1 ) の面と同一面ないしこれより後退した位置にあり、 智の下方からパッ ド 脚の接合部の下方の間の下リム (26)はワイャ部(22)とされ、 幅広部(21 )とワイヤ 部(22)との間には傾斜した段差(24)が形成されて短い間隔で幅広部 (21)からワイ ャ部(22)へと移行しており、 ヮィャ部(22)及び幅広部の突条(27)が周溝(11)に嵌 入してレンズ α) を保持する、 金属製眼鏡枠。 5. Equipped with a metal rim (2) for holding a lens (1) provided with a circumferential groove (11) on the outer circumference 、. The wide part (21) and the narrow wire part (22) are provided with a ridge (27) on the inner periphery of the wide part (21) as an extension of the wire part (22). The joints of the tongue, the bridge and the pad legs on both sides of the lens, and the upper rim (25) between them are wide, and this wide part is narrower than the thickness of the lens (1) at the part where the wide part contacts. The front and rear sides of the wide part are formed on the same plane as the lens (1) or at a position retracted from the lower part, and the lower rim (26) between the lower part and the lower part of the joint of the pad leg is formed. ) Is the wire section (22), the wide section (21) and the wire An inclined step (24) is formed between the wide portion (21) and the wire portion (22) at short intervals, and the gap between the wire portion (22) and the wide portion is formed. A metal spectacle frame in which a ridge (27) fits into the circumferential groove (11) to hold the lens α).
6 . 外周緣に周溝(11)を設けたレンズ(1) を保持する金属製リム(2) を備え、 こ のリムは全周が 1本の金属線材から一体成形されており、 その断面において幅広 い幅広部 (21)と幅狭いワイヤ部(22)とを備え、 幅広部 (21)の内周にはワイヤ部(2 2)の延長上に突条(27)を有し、 リムの両側の智、 ブリ ッジ及びパッ ド脚の接合部 及びその間の上リム (25)は幅広部とされ、 この幅広部の幅は当該幅広部が接する 部分におけるレンズ(1 ) の厚さより広く、 この幅広部の前緣がレンズ(1 ) の前面 と同一面ないしこれより後退した位置にあり、 かつその後緣はレンズ(1) の後面 から突出した位置にあり、 智の下方からパッ ド脚の接合部の下方の間の下リム(2 6)はワイヤ部(22)とされ、 幅広部(21)とワイヤ部(22)との間には傾斜した段差(2 4)が形成されて短い間隔で幅広部(21)からワイヤ部(22)へと移行しており、 ワイ ャ部 (22)及び幅広部の突条(27)が周溝(11)に嵌入してレンズ(1) を保持する、 金 属製眼鏡枠。  6. Equipped with a metal rim (2) for holding a lens (1) with a circumferential groove (11) on the outer circumference 、. The wide part (21) and the narrow wire part (22) are provided with a ridge (27) on the inner periphery of the wide part (21) on the extension of the wire part (22). The joints of the bridge, bridge and pad legs on both sides of the head and the upper rim (25) between them are wide, and the width of the wide part is wider than the thickness of the lens (1) at the part where the wide part contacts. The front part of the wide part is located on the same plane as the front surface of the lens (1) or at a position retracted from the front part, and thereafter the one part protrudes from the rear surface of the lens (1). The lower rim (26) between the lower part of the joint is a wire part (22), and an inclined step (24) is formed between the wide part (21) and the wire part (22). At a short interval, the wide part (21) transitions to the wire part (22), and the wire part (22) and the ridge (27) of the wide part fit into the circumferential groove (11) and become a lens ( 1) Hold a metal spectacle frame.
7 . リムの外側下方のワイヤ部(22, 22b)に当該部分のレンズ(1) の厚さより狭い 短い長さの幅広部(21c) を備えた、 請求の範囲第 1項ないし第 6項のいずれか 1 記載の金属製眼鏡枠。  7. The wire section (22, 22b) below the outer side of the rim is provided with a wide section (21c) having a shorter length than the thickness of the lens (1) at the section, A metal spectacle frame according to any one of the preceding claims.
PCT/JP1995/000328 1994-03-04 1995-03-01 Metallic rim of spectacles WO1995023995A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP5997394 1994-03-04
JP6/59973 1994-03-04
JP7/39213 1995-02-02
JP3921395A JPH07294856A (en) 1994-03-04 1995-02-02 Metallic spectacles frame

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
WO1998026322A1 (en) * 1996-12-13 1998-06-18 Bottega D'arte In Firenze S.R.L. Spectacle frames
US7040751B2 (en) 1997-04-18 2006-05-09 Aspex Eyewear, Inc. Frame construction for eyewear having removable auxiliary lenses
US7063420B2 (en) 2004-05-14 2006-06-20 Isl Technologies, Llc Adjustable tensioning system for rimless eyewear
US7140727B2 (en) 2002-07-10 2006-11-28 Isl Technologies, Llc Eyeglass frame assembly
US7249843B2 (en) 2004-05-14 2007-07-31 Isl Technologies, Llc Adjustable tensioning system for rimless eyewear
US7370961B2 (en) 2003-10-02 2008-05-13 Ira Lerner Interchangeable eyewear assembly
US7537337B2 (en) 2006-05-04 2009-05-26 Lerner Ira S Eyewear with eyewire tensioning assembly

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 116343/1980 (Laid-Open No. 40914/1982) (TETSUO YOSHIOKA), 5 March 1982, page 3. *
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 137809/1983 (Laid-Open No. 107826/1985) (HOYA CORP.), 22 July 1985, page 4. *
MICROFILM OF THE SPECIFICATION AND DRAWINGS ANNEXED TO THE WRITTEN APPLICATION OF JAPANESE UTILITY MODEL, Application No. 149879/1985 (Laid-Open No. 58428/1987) (HOYA CORP.), 11 April 1987, page 7-8. *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998026322A1 (en) * 1996-12-13 1998-06-18 Bottega D'arte In Firenze S.R.L. Spectacle frames
US7040751B2 (en) 1997-04-18 2006-05-09 Aspex Eyewear, Inc. Frame construction for eyewear having removable auxiliary lenses
US7278731B2 (en) 1997-04-18 2007-10-09 Aspex Eyewear, Inc. Frame construction for eyewear having removable auxiliary lenses
US7140727B2 (en) 2002-07-10 2006-11-28 Isl Technologies, Llc Eyeglass frame assembly
US7344239B2 (en) 2002-07-10 2008-03-18 Lerner Ira S Eyeglass frame assembly
US7370961B2 (en) 2003-10-02 2008-05-13 Ira Lerner Interchangeable eyewear assembly
US7063420B2 (en) 2004-05-14 2006-06-20 Isl Technologies, Llc Adjustable tensioning system for rimless eyewear
US7249843B2 (en) 2004-05-14 2007-07-31 Isl Technologies, Llc Adjustable tensioning system for rimless eyewear
US7357501B2 (en) 2004-05-14 2008-04-15 Lerner Ira S Adjustable tensioning system for rimless eyewear
US7537337B2 (en) 2006-05-04 2009-05-26 Lerner Ira S Eyewear with eyewire tensioning assembly

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