JP2007064845A - Calibration tool for spectacle frame shape measuring instrument - Google Patents

Calibration tool for spectacle frame shape measuring instrument Download PDF

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JP2007064845A
JP2007064845A JP2005252634A JP2005252634A JP2007064845A JP 2007064845 A JP2007064845 A JP 2007064845A JP 2005252634 A JP2005252634 A JP 2005252634A JP 2005252634 A JP2005252634 A JP 2005252634A JP 2007064845 A JP2007064845 A JP 2007064845A
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spectacle frame
shape measuring
measuring apparatus
frame shape
calibration jig
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JP4614279B2 (en
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Takashi Igarashi
尚 五十嵐
Masahiro Jinbo
昌宏 神保
Ryosuke Sato
良介 佐藤
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Hoya Corp
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Hoya Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a calibration tool for a spectacle frame shape measuring instrument capable of calibrating three-dimensionally a measuring error in the spectacle frame shape measuring instrument. <P>SOLUTION: In this calibration tool 30 used for calibrating the measuring error in the spectacle frame shape measuring instrument for measuring a shape of a spectacle frame or the like, a tracing groove traced with a probe of the spectacle frame shape measuring instrument is a frame groove 20 formed in each of inner circumferences of rims 2A, 2B of the spectacle frame to be engaged with a V-cross of a spectacle lens, the rim is fixed onto a frame body 31 having rigidity higher than that of the rim, and the frame groove is constituted to have a radial displacement r, a rotation-directional displacement θ and a height-directional displacement z. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、眼鏡枠形状測定装置の測定誤差を校正するために用いられる校正治具に関する。   The present invention relates to a calibration jig used for calibrating a measurement error of a spectacle frame shape measuring apparatus.

眼鏡枠等の形状を測定する眼鏡枠形状測定装置では、長年の使用などによって測定誤差が生じ、この測定誤差は、一般に校正治具を用いて校正される。
このような校正治具（基準フレーム）１００は特許文献１に記載され、図９に示すように、金属製の板１０１に、眼鏡枠のリムにおける平面視形状の基準孔１０２が形成され、この基準孔１０２の内周面１０３に、測定対象となる眼鏡枠形状測定装置の測定子１０４をトレースさせるものである。測定対象の眼鏡枠形状測定装置の測定子１０４が上記校正治具１００における基準孔１０２の内周面１０３をトレースしたときの内周面１０３の測定データと、当該校正治具１００の基準孔１０２における内周面１０３の基準データとを比較することにより、測定対象の眼鏡枠形状測定装置の測定誤差が算出される。 In a spectacle frame shape measuring apparatus that measures the shape of a spectacle frame or the like, a measurement error occurs due to long-term use or the like, and this measurement error is generally calibrated using a calibration jig.
Such a calibration jig (reference frame) 100 is described in Patent Document 1, and as shown in FIG. 9, a reference hole 102 having a planar view shape in a rim of a spectacle frame is formed in a metal plate 101. The tracing stylus 104 of the spectacle frame shape measuring apparatus to be measured is traced on the inner peripheral surface 103 of the reference hole 102. Measurement data of the inner peripheral surface 103 when the probe 104 of the spectacle frame shape measuring apparatus to be measured traces the inner peripheral surface 103 of the reference hole 102 in the calibration jig 100, and the reference hole 102 of the calibration jig 100. The measurement error of the spectacle frame shape measuring device to be measured is calculated by comparing with the reference data of the inner peripheral surface 103 in FIG.

特開平４‐１３５３９号公報JP-A-4-13539

ところが、眼鏡枠のリム形状は、眼鏡装用者の顔の形状に応じて３次元形状に構成されているが、上記校正治具１００の基準孔１０２における内周面１０３は二次元形状である。つまり、この内周面１０３は半径方向の変位ｒと、回転方向の変位θとを設定したものである。従って、このような校正治具１００を用いた眼鏡枠形状測定装置の測定誤差の校正では、上記二次元の校正は可能であるが、高さ方向変位を含めた三次元の校正が不可能となる。   However, the rim shape of the spectacle frame is configured in a three-dimensional shape according to the shape of the spectacle wearer's face, but the inner peripheral surface 103 of the reference hole 102 of the calibration jig 100 is a two-dimensional shape. That is, the inner peripheral surface 103 is set with a radial displacement r and a rotational displacement θ. Therefore, in the calibration of the measurement error of the spectacle frame shape measuring apparatus using such a calibration jig 100, the above two-dimensional calibration is possible, but the three-dimensional calibration including the displacement in the height direction is impossible. Become.

本発明の目的は、上述の事情を考慮してなされたものであり、眼鏡枠形状測定装置の測定誤差の校正を三次元で実施できる眼鏡枠形状測定装置の校正治具を提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a calibration jig for a spectacle frame shape measuring apparatus capable of performing three-dimensional calibration of measurement errors of the spectacle frame shape measuring apparatus. .

請求項１に記載の発明は、眼鏡枠等の形状を測定する眼鏡枠形状測定装置の測定誤差を校正するために用いられる校正治具であって、上記眼鏡枠形状測定装置の測定子がトレースするトレース溝を有し、このトレース溝が、半径方向、回転方向及び高さ方向に変位して形成されたことを特徴とするものである。   The invention according to claim 1 is a calibration jig used to calibrate a measurement error of a spectacle frame shape measuring apparatus for measuring the shape of a spectacle frame or the like, and the tracing stylus of the spectacle frame shape measuring apparatus is traced. The trace groove is formed by being displaced in the radial direction, the rotational direction, and the height direction.

請求項２に記載の発明は、請求項１に記載の発明において、上記トレース溝は、一枚の板状体に設けられた穴の内周面に形成されたことを特徴とするものである。   The invention according to claim 2 is the invention according to claim 1, wherein the trace groove is formed on an inner peripheral surface of a hole provided in one plate-like body. .

請求項３に記載の発明は、請求項１に記載の発明において、上記トレース溝は、眼鏡枠のリムの内周に形成されて眼鏡レンズのヤゲンを嵌合するための枠溝であり、上記リムが、当該リムよりも剛性の高い枠体に固定されて構成されたことを特徴とするものである。   According to a third aspect of the present invention, in the invention of the first aspect, the trace groove is a frame groove that is formed on the inner periphery of the rim of the spectacle frame and for fitting the bevel of the spectacle lens. The rim is configured to be fixed to a frame body having higher rigidity than the rim.

請求項４に記載の発明は、請求項３に記載の発明において、上記枠体は、一対のリムに対応して設けられた開口を備える平面部と、この平面部の両側に立設する立設部とを有し、上記平面部の上記開口を臨む縁部に上記リムの上部及び下部が固着され、上記立設部に上記リムの智部分が固着されたことを特徴とするものである。   According to a fourth aspect of the present invention, in the third aspect of the present invention, the frame body includes a flat portion having openings provided corresponding to the pair of rims, and a standing member that stands on both sides of the flat portion. An upper portion and a lower portion of the rim are fixed to an edge of the flat portion facing the opening, and a wiping portion of the rim is fixed to the standing portion. .

請求項５に記載の発明は、請求項1乃至４のいずれかに記載の発明において、上記トレース溝は、測定子の先端部における略反対側の両部分が接触することで当該先端部を規制する規制面を有することを特徴とするものである。   According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the trace groove regulates the tip portion by contacting both portions on the substantially opposite side of the tip portion of the measuring element. It is characterized by having a regulating surface.

請求項１、２または３に記載の発明によれば、校正治具では、眼鏡枠形状測定装置の測定子がトレースするトレース溝が、半径方向、回転方向及び高さ方向に変位して形成されている。このため、この校正治具を用いた眼鏡枠形状測定装置の測定誤差の校正を三次元で実施でき、正確な校正を実現できる。   According to the first, second, or third aspect of the invention, in the calibration jig, the trace groove that is traced by the probe of the spectacle frame shape measuring device is formed by being displaced in the radial direction, the rotational direction, and the height direction. ing. Therefore, the measurement error of the spectacle frame shape measuring apparatus using this calibration jig can be calibrated in three dimensions, and accurate calibration can be realized.

請求項４に記載の発明によれば、眼鏡枠のリムの上部及び下部を枠体の平面部における開口を臨む縁部に固着し、上記リムの智部分を上記枠体の立設部に固着したことから、眼鏡枠のリムを上記枠体によって、変形を生じさせることなく補強することができる。   According to the fourth aspect of the present invention, the upper and lower parts of the rim of the spectacle frame are fixed to the edge part facing the opening in the flat part of the frame, and the wisdom part of the rim is fixed to the standing part of the frame. Thus, the rim of the spectacle frame can be reinforced by the frame body without causing deformation.

請求項５に記載の発明によれば、トレース溝は、測定子の先端部における略反対側の両部分が接触することで当該先端部を規制する規制面を有することから、測定子は、このトレース溝から離脱することなく、規制面に常に接触した状態で当該トレース溝に沿って移動することができ、校正治具による校正を正確に実施できる。   According to the invention described in claim 5, since the trace groove has a regulation surface that regulates the tip portion by contacting both portions on the substantially opposite side of the tip portion of the probe, Without moving away from the trace groove, it can move along the trace groove while always in contact with the regulating surface, and the calibration with the calibration jig can be performed accurately.

以下、本発明を実施するための最良の形態を、図面に基づき説明する。
［Ａ］第１の実施の形態（図１〜図６）
図１は、本発明に係る眼鏡枠形状測定装置の校正治具における第１の実施の形態を示し、（Ａ）が正面図、（Ｂ）が図１（Ａ）のＢ矢視図、（Ｃ）が図１（Ａ）のＣ矢視図である。図４は、眼鏡枠形状測定装置を正面側から目視して示す斜視図である。図５は、図４の眼鏡枠形状測定装置を後面側から目視して示す斜視図である。 The best mode for carrying out the present invention will be described below with reference to the drawings.
[A] First embodiment (FIGS. 1 to 6)
1A and 1B show a first embodiment of a calibration jig of a spectacle frame shape measuring apparatus according to the present invention, where FIG. 1A is a front view, FIG. C) is a C arrow view of FIG. FIG. 4 is a perspective view showing the spectacle frame shape measuring apparatus as viewed from the front side. FIG. 5 is a perspective view showing the spectacle frame shape measuring apparatus of FIG. 4 as viewed from the rear side.

図４及び図５に示す眼鏡枠形状測定装置１０は、眼鏡枠１（図６）の左右のリム２Ａ、２Ｂの形状、図示しないフレーム型板の形状、または図示しない眼鏡レンズの外周形状をそれぞれ測定するものであり、前方側にコントロールパネル１１が設置されたアッパカバー１２の中央に、開口部１３が形成される。この開口部１３内に、測定対象の眼鏡枠１、フレーム型板または眼鏡レンズが搬入される。   The spectacle frame shape measuring apparatus 10 shown in FIGS. 4 and 5 has the shape of the left and right rims 2A and 2B of the spectacle frame 1 (FIG. 6), the shape of a frame template not shown, or the outer shape of a spectacle lens not shown. An opening 13 is formed at the center of the upper cover 12 on which the control panel 11 is installed on the front side. The eyeglass frame 1, the frame template or the eyeglass lens to be measured is carried into the opening 13.

この開口部１３内には、眼鏡枠形状測定装置１０の前方側に前側押え台１４が、後方側に後側押え台１５が、それぞれ接近または離反する方向に移動可能に配置される。各押え台１４、１５に上記一対のクランプピン１６が複数対（例えば２対）設置されている。   In the opening 13, a front presser base 14 is disposed on the front side of the spectacle frame shape measuring apparatus 10, and a rear presser base 15 is disposed on the rear side so as to be movable toward or away from each other. A plurality of pairs (for example, two pairs) of the pair of clamp pins 16 are installed on the pressers 14 and 15.

前側押え台１４と後側押え台１５は、眼鏡枠１のリム２Ａ及び２Ｂが操作者により開口部１３内に搬入されたときに、同じく操作者により接近移動されて、これらのリム２Ａ及び２Ｂを下側のクランプピン１６上に載置する（図６）。その後、操作者がコントロールパネル１１のスタートボタン（不図示）を操作することにより、前側押え台１４及び後側押え台１５の上下のクランプピン１６がリム２Ａ及び２Ｂを把持し、押え台１４及び１５の位置がロックされて、眼鏡枠１が眼鏡枠形状測定装置１０に装着される。
尚、この眼鏡枠１は、リム２Ａ及び２Ｂを下方に、リム２Ａ及び２Ｂの智３に枢支されるテンプル４を上方に位置付けて、眼鏡枠形状測定装置１０に装着される。 The front presser base 14 and the rear presser base 15 are moved closer to each other by the operator when the rims 2A and 2B of the spectacle frame 1 are carried into the opening 13 by the operator, and these rims 2A and 2B are moved. Is placed on the lower clamp pin 16 (FIG. 6). Thereafter, when the operator operates a start button (not shown) of the control panel 11, the upper and lower clamp pins 16 of the front presser base 14 and the rear presser base 15 grip the rims 2A and 2B. The position 15 is locked, and the spectacle frame 1 is attached to the spectacle frame shape measuring apparatus 10.
The spectacle frame 1 is attached to the spectacle frame shape measuring apparatus 10 with the rims 2A and 2B positioned downward and the temple 4 pivotally supported by the rims 3 of the rims 2A and 2B positioned upward.

更に、図４に示すように、開口部１３内には回転駆動される回転テーブル１７が装着されると共に、この回転テーブル１７に長溝１８が、回転テーブル１７の直径方向に延在して形成され、この長溝１８内に、測定子としてのスタイラス１９が設置される。このスタイラス１９は、図示しない水平駆動機構により長溝１８内で水平方向に移動され、且つ図示しない昇降機構により長溝１８内で昇降される。また、スタイラス１９は、回転テーブル１７の回転駆動により水平面内において回転されることになる。   Further, as shown in FIG. 4, a rotary table 17 that is rotationally driven is mounted in the opening 13, and a long groove 18 is formed in the rotary table 17 so as to extend in the diameter direction of the rotary table 17. A stylus 19 as a measuring element is installed in the long groove 18. The stylus 19 is moved in the horizontal direction in the long groove 18 by a horizontal drive mechanism (not shown), and is lifted and lowered in the long groove 18 by a lifting mechanism (not shown). Further, the stylus 19 is rotated in the horizontal plane by the rotation drive of the rotary table 17.

上述のように眼鏡枠１が前側押え台１４、後側押え台１５及びクランプピン１６を用いて眼鏡枠形状測定装置１０に装着された後（図６）、上記回転テーブル１７、上記水平駆動機構及び上記昇降機構の作用で、スタイラス１９は、装着された眼鏡枠１のリム２Ａ、２Ｂの内周面に形成された枠溝２０をトレースする。この枠溝２０は、図示しない眼鏡レンズのヤゲンを嵌合するための溝である。   As described above, after the spectacle frame 1 is mounted on the spectacle frame shape measuring apparatus 10 using the front presser base 14, the rear presser base 15, and the clamp pin 16 (FIG. 6), the rotary table 17, the horizontal drive mechanism. The stylus 19 traces the frame grooves 20 formed on the inner peripheral surfaces of the rims 2A and 2B of the spectacle frame 1 attached by the action of the lifting mechanism. The frame groove 20 is a groove for fitting a bevel of a spectacle lens (not shown).

眼鏡枠１のリム２Ａ、２Ｂは、一般に眼鏡装用者の顔の形状に対応して湾曲した３次元形状に形成されている。そのため、リム２Ａ、２Ｂの枠溝２０をトレースするスタイラス１９は３次元形状の測定となり、その測定データは、スタイラス１９の半径方向（水平方向）の変位ｒ、スタイラス１９の水平面内における回転方向の変位θ、スタイラス１９の高さ方向（昇降方向）の変位ｚで表される円筒座標系のデータとなる。これらの変位ｒ、θ、ｚの測定データから、眼鏡枠１のリム２Ａ、２Ｂの形状が測定される。   The rims 2A and 2B of the spectacle frame 1 are generally formed in a three-dimensional shape curved corresponding to the shape of the face of the spectacle wearer. Therefore, the stylus 19 that traces the frame grooves 20 of the rims 2A and 2B has a three-dimensional shape measurement. The measurement data includes the radial displacement (horizontal direction) r of the stylus 19 and the rotational direction of the stylus 19 in the horizontal plane. Data of the cylindrical coordinate system represented by the displacement θ and the displacement z in the height direction (lifting direction) of the stylus 19 is obtained. From the measurement data of these displacements r, θ, and z, the shapes of the rims 2A and 2B of the spectacle frame 1 are measured.

図示しないフレーム型板の形状、眼鏡レンズの外周形状についても、スタイラス１９を用いて測定データｒ、θが測定され、これらの測定データｒ、θからフレーム型板の形状、眼鏡レンズの外周形状が測定される。   The measurement data r and θ are also measured using the stylus 19 for the shape of the frame template not shown and the outer peripheral shape of the spectacle lens, and the shape of the frame template and the outer peripheral shape of the spectacle lens are determined from the measurement data r and θ. Measured.

さて、上述のような眼鏡枠形状測定装置１０では、長年の使用などによって測定誤差が生じ、図１に示す校正治具３０を用いてその測定誤差を校正する必要がある。この校正治具３０は、ブリッジ５にて結合された眼鏡枠１のリム２Ａ及び２Ｂと、このリム２Ａ及び２Ｂを固定して支持する枠体３１とを有して構成される。この枠体３１は、リム２Ａ及び２Ｂよりも剛性が高い金属板にて構成される。   Now, in the spectacle frame shape measuring apparatus 10 as described above, a measurement error occurs due to long-time use or the like, and it is necessary to calibrate the measurement error using the calibration jig 30 shown in FIG. The calibration jig 30 includes rims 2A and 2B of the spectacle frame 1 connected by a bridge 5 and a frame body 31 that fixes and supports the rims 2A and 2B. The frame 31 is formed of a metal plate having higher rigidity than the rims 2A and 2B.

この枠体３１は、開口３２を備えた平面部３３と、この平面部３３の両端側から一体に立設された立設部３４とを有してなる。開口３２は、ブリッジ５にて結合された一対のリム２Ａ及び２Ｂに対応し、これらのリム２Ａ及び２Ｂを内接する例えば四角形状に形成される。   The frame 31 includes a flat portion 33 having an opening 32 and a standing portion 34 that is integrally provided upright from both ends of the flat portion 33. The opening 32 corresponds to the pair of rims 2 </ b> A and 2 </ b> B coupled by the bridge 5, and is formed in, for example, a rectangular shape that inscribes the rims 2 </ b> A and 2 </ b> B.

平面部３３の開口３２を臨む上側縁部３５、下側縁部３６にリム２Ａ及び２Ｂの上部、下部がそれぞれ接着剤３７を用いて固着される。また、リム２Ａ及び２Ｂの智３の部分がブラケット３８を介して立設部３４に溶接等により固着される。このようにして、ブリッジ５にて結合されたリム２Ａ及び２Ｂが、当該リム２Ａ及び２Ｂよりも剛性の高い金属製の枠体３１に強固に固定されて補強される。尚、図１中の符号４１は溶接箇所を示し、符号４２は脚部を示す。   The upper and lower portions of the rims 2A and 2B are fixed to the upper edge 35 and the lower edge 36 facing the opening 32 of the flat portion 33 by using an adhesive 37, respectively. Further, the rim 3 of the rims 2 </ b> A and 2 </ b> B is fixed to the standing portion 34 via a bracket 38 by welding or the like. In this way, the rims 2A and 2B joined by the bridge 5 are firmly fixed and reinforced by the metal frame 31 having higher rigidity than the rims 2A and 2B. In addition, the code | symbol 41 in FIG. 1 shows a welding location, and the code | symbol 42 shows a leg part.

このように構成された校正治具３０におけるリム２Ａ及び２Ｂの枠溝２０は、眼鏡枠形状測定装置１０のスタイラス１９がトレースするトレース溝として機能する。この枠溝２０は、リム２０Ａ及び２０Ｂが前述の如く３次元形状を有することから、半径方向の変位ｒ（図１（Ａ））、回転方向の変位θ（図１（Ａ））、高さ方向の変位z（図１（Ｂ））を有している。これらの変位ｒ、θ及びzは、正確な眼鏡枠形状測定装置１０などによって予め測定されて基準値とされ、この基準値から算出された枠溝２０（トレース溝）の周長が基準周長として、校正治具３０の例えば枠体３１における平面部３３に表示される。本実施の形態では、リム２Ａ、２Ｂにおける枠溝２０のそれぞれの基準周長が「Ｌ周長」、「Ｒ周長」として上記平面部３３に表示されている。   The frame grooves 20 of the rims 2 </ b> A and 2 </ b> B in the calibration jig 30 configured in this way function as trace grooves that the stylus 19 of the spectacle frame shape measuring apparatus 10 traces. Since the rims 20A and 20B have a three-dimensional shape as described above, the frame groove 20 has a radial displacement r (FIG. 1A), a rotational displacement θ (FIG. 1A), and a height. It has a directional displacement z (FIG. 1B). These displacements r, θ, and z are measured in advance by the accurate spectacle frame shape measuring apparatus 10 or the like as reference values, and the circumference of the frame groove 20 (trace groove) calculated from the reference value is the reference circumference. Is displayed on the flat portion 33 of the frame 31 of the calibration jig 30, for example. In the present embodiment, the reference circumferential lengths of the frame grooves 20 in the rims 2A and 2B are displayed on the plane portion 33 as “L circumferential length” and “R circumferential length”.

ここで、トレース溝として機能する枠溝２０は、図２に示すように、所定の角度αをもって略対向する傾斜面３９Ａ及び３９Ｂから構成される。これらの傾斜面３９Ａ、３９Ｂのそれぞれに、スタイラス１９の先端部における略反対側の部分４０Ａ、４０Ｂが接触して、これらの傾斜面３９Ａ、３９Ｂは、スタイラス１９の先端部を規制する規制面として機能する。つまり、枠溝２０が前述の３次元方向の変位ｒ、θ、zを有していても、この枠溝２０をトレースするスタイラス１９は、枠溝２０の少なくとも一つの傾斜面３９Ａ、３９Ｂに接触して規制され、枠溝２０からの離脱が防止される。   Here, as shown in FIG. 2, the frame groove 20 functioning as a trace groove is composed of inclined surfaces 39A and 39B substantially facing each other with a predetermined angle α. The inclined surfaces 39A and 39B are in contact with the substantially opposite portions 40A and 40B of the tip of the stylus 19, and these inclined surfaces 39A and 39B serve as restricting surfaces that restrict the tip of the stylus 19. Function. That is, even if the frame groove 20 has the aforementioned three-dimensional displacements r, θ, and z, the stylus 19 that traces the frame groove 20 contacts at least one inclined surface 39A, 39B of the frame groove 20. Therefore, detachment from the frame groove 20 is prevented.

測定対象となる眼鏡枠形状測定装置１０の測定誤差を校正するために、上述のように構成された校正治具３０を用いる。この際、校正治具３０は、図３に示すようにして測定対象の眼鏡枠形状測定装置１０に装着される。つまり、眼鏡枠１を装着する場合と同様にして、測定対象の眼鏡枠形状測定装置１０の前側押え台１４と後側押え台１５との間に校正治具３０が搬入されると、当該眼鏡枠形状測定装置１０は、これらの押え台１４及び１５のクランプピン１６を用いて校正治具３０の枠体３１における平面部３３の外側部分を把持する。   In order to calibrate the measurement error of the spectacle frame shape measuring apparatus 10 to be measured, the calibration jig 30 configured as described above is used. At this time, the calibration jig 30 is attached to the spectacle frame shape measuring apparatus 10 to be measured as shown in FIG. That is, when the calibration jig 30 is carried between the front presser base 14 and the rear presser base 15 of the spectacle frame shape measuring apparatus 10 to be measured in the same manner as when the spectacle frame 1 is mounted, the spectacles are concerned. The frame shape measuring apparatus 10 grips the outer portion of the flat surface portion 33 in the frame body 31 of the calibration jig 30 using the clamp pins 16 of the pressers 14 and 15.

この状態で、測定対象の眼鏡枠形状測定装置１０はスタイラス１９に、校正治具３０のリム２Ａ及び２Ｂにおける枠溝２０をトレースさせ、この枠溝２０の３次元変位（ｒ、θ、z）を測定し、この３次元変位データから枠溝２０の周長を算出して測定する。この測定された枠溝２０の周長と校正治具３０に表示された基準周長との誤差が解消されるように、測定対象の眼鏡枠形状測定装置１０が操作者により調整されて、この測定対象の眼鏡枠形状測定装置１０の校正が実施される。   In this state, the spectacle frame shape measuring apparatus 10 to be measured causes the stylus 19 to trace the frame groove 20 in the rims 2A and 2B of the calibration jig 30, and the three-dimensional displacement (r, θ, z) of the frame groove 20 is determined. Then, the circumference of the frame groove 20 is calculated from the three-dimensional displacement data and measured. The eyeglass frame shape measuring apparatus 10 to be measured is adjusted by the operator so that the error between the measured circumference of the frame groove 20 and the reference circumference displayed on the calibration jig 30 is eliminated. Calibration of the spectacle frame shape measuring apparatus 10 to be measured is performed.

以上のように構成されたことから、上記実施の形態によれば、次の効果（１）〜（３）を奏する。
（１）校正治具３０は、眼鏡枠１のリム２Ａ及び２Ｂが枠体３１に固定されて構成され、リム２Ａ及び２Ｂの枠溝２０は、眼鏡枠形状測定装置１０のスタイラス１９がトレースするトレース溝とされ、半径方向の変位ｒ、回転方向の変位θ及び高さ方向の変位zを有して構成される。このため、この校正治具３０を用いた眼鏡枠形状測定装置１０の測定誤差の校正を３次元で実施でき、正確な校正を実現できる。 With the configuration as described above, the following effects (1) to (3) are achieved according to the above embodiment.
(1) The calibration jig 30 is configured by fixing the rims 2A and 2B of the spectacle frame 1 to the frame 31, and the stylus 19 of the spectacle frame shape measuring apparatus 10 traces the frame grooves 20 of the rims 2A and 2B. The trace groove is configured to have a displacement r in the radial direction, a displacement θ in the rotational direction, and a displacement z in the height direction. For this reason, calibration of the measurement error of the spectacle frame shape measuring apparatus 10 using the calibration jig 30 can be performed in three dimensions, and accurate calibration can be realized.

（２）上記校正治具３０では、眼鏡枠１のリム２Ａ及び２Ｂの上部及び下部を、枠体３１の平面部３３における開口３２を臨む上側縁部３５、下側縁部３６にそれぞれ固着し、リム２Ａ及び２Ｂの智３の部分を上記枠体３１の立設部３４に固着したことから、眼鏡枠１のリム２Ａ及び２Ｂを枠体３１によって、変形を生じさせることなく補強することができる。   (2) In the calibration jig 30, the upper and lower portions of the rims 2 </ b> A and 2 </ b> B of the spectacle frame 1 are fixed to the upper edge 35 and the lower edge 36 facing the opening 32 in the flat portion 33 of the frame 31, respectively. Since the rim 3 part of the rims 2A and 2B is fixed to the standing portion 34 of the frame body 31, the rims 2A and 2B of the spectacle frame 1 can be reinforced by the frame body 31 without causing deformation. it can.

（３）校正治具３０のリム２Ａ及び２Ｂにおける枠溝２０は、眼鏡枠形状測定装置１０のスタイラス１９の先端部における略反対側の両部分４０Ａ及び４０Ｂが接触することで、当該先端部を規制する傾斜面３９Ａ及び３９Ｂを有する。このため、スタイラス１９は、上記枠溝２０から離脱することなく、傾斜面３９Ａと３９Ｂの両方に常に接触した状態で当該枠溝２０に沿って移動することができ、校正治具３０による校正を正確に実施できる。   (3) The frame groove 20 in the rims 2A and 2B of the calibration jig 30 is brought into contact with the substantially opposite portions 40A and 40B of the distal end portion of the stylus 19 of the spectacle frame shape measuring apparatus 10, so that the distal end portion is It has the inclined surfaces 39A and 39B to regulate. Therefore, the stylus 19 can move along the frame groove 20 in a state where the stylus 19 is always in contact with both the inclined surfaces 39A and 39B without detaching from the frame groove 20, and calibration by the calibration jig 30 can be performed. Can be implemented accurately.

［Ｂ］第２の実施の形態（図７、図８）
図７は、本発明に係る眼鏡枠形状測定装置の校正治具における第２の実施の形態を示し、（Ａ）が正面図、（Ｂ）が図７（Ａ）のＢ矢視図、（Ｃ）が図７（Ａ）のＣ矢視図である。この第２の実施の形態において、前記第１の実施の形態と同様な部分は、同一の符号を付すことにより説明を省略する。 [B] Second embodiment (FIGS. 7 and 8)
7A and 7B show a second embodiment of the calibration jig of the spectacle frame shape measuring apparatus according to the present invention, in which FIG. 7A is a front view, FIG. C) is a C arrow view of FIG. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

図７に示す校正治具５０は、合成樹脂または金属製の一枚の板状体５１に、２個の穴５２及び５３を並設し、これらの穴５２及び５３の内周面にトレース溝５４を形成したものである。   A calibration jig 50 shown in FIG. 7 has two holes 52 and 53 arranged side by side in a single plate-like body 51 made of synthetic resin or metal, and trace grooves are formed on the inner peripheral surfaces of these holes 52 and 53. 54 is formed.

上記穴５２及び５３は円形状に、または眼鏡枠１のリム２Ａ、２Ｂの平面視形状に形成されている。また、トレース溝５４は、半径方向の変位ｒ（図７（Ａ））、回転方向の変位θ（図７（Ａ））及び高さ方向の変位ｚ（図７（Ｂ））を有して構成される。これらの変位ｒ、θ、zは、正確な眼鏡枠形状測定装置１０等によって予め測定されて基準値とされ、この基準値から算出されたトレース溝５４の周長が基準周長として、校正治具５０の板状体５１に表示される。本実施の形態では、穴５２、５３のトレース溝５４の周長が、それぞれ「Ｌ周長」、「Ｒ周長」として表示されている。   The holes 52 and 53 are formed in a circular shape or in a plan view shape of the rims 2A and 2B of the spectacle frame 1. The trace groove 54 has a radial displacement r (FIG. 7A), a rotational displacement θ (FIG. 7A), and a height displacement z (FIG. 7B). Composed. These displacements r, θ, and z are measured in advance by the accurate spectacle frame shape measuring apparatus 10 or the like as reference values, and the perimeter of the trace groove 54 calculated from the reference values is used as a reference perimeter, thereby correcting the calibration. It is displayed on the plate-like body 51 of the tool 50. In the present embodiment, the circumferential lengths of the trace grooves 54 of the holes 52 and 53 are displayed as “L circumferential length” and “R circumferential length”, respectively.

また、トレース溝５４も、図８に示すように、所定の角度βをもって略対向する傾斜面５５Ａ及び５５Ｂから構成される。これらの傾斜面５５Ａ、５５Ｂに、眼鏡枠形状測定装置１０のスタイラス１９における先端部の略反対側の両部分４０Ａ、４０Ｂがそれぞれ接触する。従って、スタイラス１９がトレース溝５４をトレースする際に、スタイラス１９の先端部は、トレース溝５４の傾斜面５５Ａ、５５Ｂの両方に接触して規制されて、スタイラス１９のトレース溝５４からの離脱が防止される。   Further, as shown in FIG. 8, the trace groove 54 also includes inclined surfaces 55 </ b> A and 55 </ b> B that are substantially opposed to each other with a predetermined angle β. These inclined surfaces 55A and 55B are in contact with both portions 40A and 40B on the substantially opposite side of the tip of the stylus 19 of the spectacle frame shape measuring apparatus 10, respectively. Therefore, when the stylus 19 traces the trace groove 54, the tip of the stylus 19 is regulated by contacting both the inclined surfaces 55A and 55B of the trace groove 54, and the stylus 19 is separated from the trace groove 54. Is prevented.

以上のように構成された校正治具５０を測定対象の眼鏡枠形状測定装置１０に、校正治具３０の場合と同様に装着する。そして、この測定対象の眼鏡枠形状測定装置１０のスタイラス１９が校正治具５０の穴５２及び５３におけるトレース溝５４をトレースすることにより、トレース溝５４の３次元形状の変位ｒ、θ及びzを測定し、この変位から穴５２及び５３におけるトレース溝５４の周長を演算して測定する。この測定されたトレース溝５４の周長と基準周長との誤差が解消されるように測定対象の眼鏡枠形状測定装置１０が調整されて、当該眼鏡枠形状測定装置１０の校正が実施される。   The calibration jig 50 configured as described above is attached to the eyeglass frame shape measuring apparatus 10 to be measured in the same manner as the calibration jig 30. Then, the stylus 19 of the eyeglass frame shape measuring apparatus 10 to be measured traces the trace groove 54 in the holes 52 and 53 of the calibration jig 50, so that the displacements r, θ, and z of the three-dimensional shape of the trace groove 54 are obtained. Measurement is performed, and the circumference of the trace groove 54 in the holes 52 and 53 is calculated from the displacement and measured. The eyeglass frame shape measuring apparatus 10 to be measured is adjusted so that the error between the measured circumference of the trace groove 54 and the reference circumference is eliminated, and the eyeglass frame shape measuring apparatus 10 is calibrated. .

従って、この第２の実施の形態の校正治具５０よれば、次の効果（４）を奏する他、前記校正治具３０の効果（３）と同様な効果を奏する。
（４）校正治具５０では、眼鏡枠形状測定装置１０のスタイラス１９がトレースするトレース溝５４が、半径方向の変位ｒ、回転方向の変位θ、高さ方向の変位zを有して構成されたことから、この校正治具５０を用いた眼鏡形状測定装置１０の測定誤差の校正を３次元で実施でき、正確な校正を実現できる。 Therefore, according to the calibration jig 50 of the second embodiment, in addition to the following effect (4), the same effect as the effect (3) of the calibration jig 30 is obtained.
(4) In the calibration jig 50, the trace groove 54 traced by the stylus 19 of the spectacle frame shape measuring apparatus 10 is configured to have a radial displacement r, a rotational displacement θ, and a height displacement z. Therefore, the measurement error of the spectacle shape measuring apparatus 10 using the calibration jig 50 can be calibrated in three dimensions, and accurate calibration can be realized.

以上、本発明を上記実施の形態に基づいて説明したが、本発明はこれに限定されるものではない。   As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.

本発明に係る眼鏡枠形状測定装置の校正治具における第１の実施の形態を示し、（Ａ）が正面図、（Ｂ）が図１（Ａ）のＢ矢視図、（Ｃ）が図１（Ａ）のＣ矢視図である。The 1st Embodiment in the calibration jig | tool of the spectacles frame shape measuring apparatus which concerns on this invention is shown, (A) is a front view, (B) is a B arrow view of FIG. 1 (A), (C) is a figure. It is a C arrow line view of 1 (A). 図１のII‐II線に沿う断面図である。It is sectional drawing which follows the II-II line of FIG. 図１の校正治具を眼鏡枠形状測定装置に装着した状態を示す斜視図である。It is a perspective view which shows the state which mounted | wore the spectacles frame shape measuring apparatus with the calibration jig | tool of FIG. 眼鏡枠形状測定装置を正面側から目視して示す斜視図である。It is a perspective view which shows the spectacles frame shape measuring apparatus visually viewing from the front side. 図４の眼鏡枠形状測定装置を後面側から目視して示す斜視図である。FIG. 5 is a perspective view showing the spectacle frame shape measuring apparatus of FIG. 4 as viewed from the rear side. 図４及び図５の眼鏡枠形状測定装置に眼鏡枠を装着した状態を示す斜視図である。FIG. 6 is a perspective view showing a state in which a spectacle frame is attached to the spectacle frame shape measuring apparatus of FIGS. 4 and 5. 本発明に係る眼鏡枠形状測定装置の校正治具における第２の実施の形態を示し、（Ａ）が正面図、（Ｂ）が図７（Ａ）のＢ矢視図、（Ｃ）が図７（Ａ）のＣ矢視図である。2A and 2B show a second embodiment of a calibration jig of a spectacle frame shape measuring apparatus according to the present invention, in which FIG. 7A is a front view, FIG. It is a C arrow line view of 7 (A). 図７（Ａ）のVIII‐VIII線に沿う断面図である。It is sectional drawing which follows the VIII-VIII line of FIG. 7 (A). 従来の校正治具を示し、（Ａ）が正面図、（Ｂ）が図９（Ａ）のIX‐IX線に沿う断面図である。FIG. 10A is a front view of a conventional calibration jig, and FIG. 9B is a cross-sectional view taken along line IX-IX in FIG.

符号の説明Explanation of symbols

１ 眼鏡枠
２Ａ、２Ｂ リム
３ 智
１０ 眼鏡枠形状測定装置
１９ スタイラス（測定子）
２０ 枠溝（トレース溝）
３９ 校正治具
３１ 枠体
３２ 開口
３３ 平面部
３４ 立設部
３５ 上側縁部
３６ 下側縁部
３９Ａ、３９Ｂ 傾斜面（規制面）
５０ 校正治具
５１ 板状体
５２、５３ 穴
５４ トレース溝
ｒ 半径方向の変位
θ 回転方向の変位
z 高さ方向の変位 DESCRIPTION OF SYMBOLS 1 Glasses frame 2A, 2B Rim 3 Satoshi 10 Glasses frame shape measuring device 19 Stylus (measuring element)
20 Frame groove (trace groove)
39 Calibration jig 31 Frame 32 Opening 33 Plane part 34 Standing part 35 Upper edge part 36 Lower edge part 39A, 39B Inclined surface (regulating surface)
50 Calibration jig 51 Plate 52, 53 Hole 54 Trace groove r Radial displacement θ Displacement in rotational direction
z Height displacement

Claims (5)

眼鏡枠等の形状を測定する眼鏡枠形状測定装置の測定誤差を校正するために用いられる校正治具であって、
上記眼鏡枠形状測定装置の測定子がトレースするトレース溝を有し、このトレース溝が、半径方向、回転方向及び高さ方向に変位して形成されたことを特徴とする眼鏡枠形状測定装置の校正治具。 A calibration jig used to calibrate a measurement error of a spectacle frame shape measuring apparatus that measures the shape of a spectacle frame,
The spectacle frame shape measuring apparatus of the spectacle frame shape measuring apparatus has a trace groove for tracing, and the trace groove is formed by being displaced in a radial direction, a rotational direction, and a height direction. Calibration jig. 上記トレース溝は、一枚の板状体に設けられた穴の内周面に形成されたことを特徴とする請求項１に記載の眼鏡枠形状測定装置の校正治具。   2. The calibration jig for a spectacle frame shape measuring apparatus according to claim 1, wherein the trace groove is formed on an inner peripheral surface of a hole provided in one plate-like body. 上記トレース溝は、眼鏡枠のリムの内周に形成されて眼鏡レンズのヤゲンを嵌合するための枠溝であり、上記リムが、当該リムよりも剛性の高い枠体に固定されて構成されたことを特徴とする請求項１に記載の眼鏡枠形状測定装置の校正治具。   The trace groove is a frame groove that is formed on the inner periphery of the rim of the spectacle frame to fit the bevel of the spectacle lens, and the rim is configured to be fixed to a frame body having higher rigidity than the rim. The calibration jig of the spectacle frame shape measuring apparatus according to claim 1, wherein 上記枠体は、一対のリムに対応して設けられた開口を備える平面部と、この平面部の両側に立設する立設部とを有し、上記平面部の上記開口を臨む縁部に上記リムの上部及び下部が固着され、上記立設部に上記リムの智部分が固着されたことを特徴とする請求項３に記載の眼鏡枠形状測定装置の校正治具。   The frame body has a flat portion provided with openings provided corresponding to a pair of rims, and standing portions standing on both sides of the flat portion, and an edge portion facing the opening of the flat portion. 4. The calibration jig for a spectacle frame shape measuring apparatus according to claim 3, wherein an upper portion and a lower portion of the rim are fixed, and the rim portion of the rim is fixed to the standing portion. 上記トレース溝は、測定子の先端部における略反対側の両部分が接触することで当該先端部を規制する規制面を有することを特徴とする請求項1乃至４のいずれかに記載の眼鏡枠形状測定装置の校正治具。   The spectacle frame according to any one of claims 1 to 4, wherein the trace groove has a regulating surface that regulates the tip portion by contacting both portions on the substantially opposite side of the tip portion of the measuring element. Calibration jig for shape measuring equipment.
JP2005252634A 2005-08-31 2005-08-31 Calibration jig for eyeglass frame shape measuring device Expired - Fee Related JP4614279B2 (en)

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Publication number Priority date Publication date Assignee Title
CN107478135A (en) * 2017-09-04 2017-12-15 辽宁中蓝电子科技有限公司 A kind of eyeglass outside diameter measuring tool

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JPH11123635A (en) * 1997-10-23 1999-05-11 Makino Milling Mach Co Ltd Method and device for measuring shape dimension of workpiece
JP2001105293A (en) * 1999-10-07 2001-04-17 Nidek Co Ltd Spherical shape measuring device and glass lens working device having the same, and calibration method for spherical shape measuring device
JP2004003948A (en) * 2002-04-08 2004-01-08 Hoya Corp Spectacle frame shape measuring device

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Publication number Priority date Publication date Assignee Title
JPH11123635A (en) * 1997-10-23 1999-05-11 Makino Milling Mach Co Ltd Method and device for measuring shape dimension of workpiece
JP2001105293A (en) * 1999-10-07 2001-04-17 Nidek Co Ltd Spherical shape measuring device and glass lens working device having the same, and calibration method for spherical shape measuring device
JP2004003948A (en) * 2002-04-08 2004-01-08 Hoya Corp Spectacle frame shape measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107478135A (en) * 2017-09-04 2017-12-15 辽宁中蓝电子科技有限公司 A kind of eyeglass outside diameter measuring tool
CN107478135B (en) * 2017-09-04 2023-11-10 辽宁中蓝光电科技有限公司 Lens external diameter measurement jig

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