JP3632012B2 - Inspection method and inspection apparatus for rod-shaped members - Google Patents

Inspection method and inspection apparatus for rod-shaped members Download PDF

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JP3632012B2
JP3632012B2 JP2002153646A JP2002153646A JP3632012B2 JP 3632012 B2 JP3632012 B2 JP 3632012B2 JP 2002153646 A JP2002153646 A JP 2002153646A JP 2002153646 A JP2002153646 A JP 2002153646A JP 3632012 B2 JP3632012 B2 JP 3632012B2
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rod
holding
shaped member
period
holding member
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JP2003347813A (en
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敦司 大江
不二男 高橋
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Toshiba Corp
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Toshiba Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、例えば携帯電話用アンテナのような棒状部材の屈曲についての検査方法とその装置に関する。
【０００２】
【従来の技術】
携帯電話器のアンテナの収納は、通常、デザイン性と取扱の便のため、図２に示すような小径棒状の伸縮部材であるアンテナ４１を、電話機本体４２に押し込んで収納する押込収納式のアンテナ４１が多く用いられている。この押込収納式のアンテナ４１は、金属線材を芯としてその外周に被覆が施され、押込みの際に電話機本体４２の収納孔との間に適度の摩擦抵抗が与えられている。
【０００３】
このアンテナ４１は、携帯電話器の日常的な使用状態から丁寧な収納動作は期待し難く、乱暴な動作、つまりアンテナ４１の先端への押圧力が必ずしも軸線に沿わない場合でも円滑な押込みができ、かつ一時的な曲げ負荷に耐えて折損や永久変形を生じないことが必要である。また、このアンテナ４１は頻繁な引き出し・収納が繰り返されることから、この繰り返し曲げ応力によってもアンテナ４１が永久変形や折損しないことが要求されている。
【０００４】
このようなアンテナ４１に用いられる芯線としてはＮｉ−Ｔｉ合金等が用いられている。例えば、特開平１０−１３１２３号公報に開示されているように、図３に示す繰り返し曲げ試験治具（曲げ２５ｍｍＲ）４３を用いて、アンテナ４１の根元側を固定して人手により１，０００回以上の耐折損耐久力と、その１，０００回の曲げについての試験を行った後、永久曲げ変形角度θが１０度以下であることが要求されている。
【０００５】
なお、図３に示すように、繰り返し曲げ試験治具４３は、上部に曲率半径２５ｍｍの曲げ案内部４４を有する台部４５と、この台部４５の側面に試験片（アンテナ４１）を保持するスリット４６が設けられている。繰り返し曲げ試験４３は、アンテナ４１の一端側を実線で示すようにスリット４６に挟み、人手により破線で示すようにその他端がスリット４６の反対側の台部４５の側面につくまで案内部４４に沿わせて曲げた後、材料の弾性によって元の実線で示す位置に戻す動作を繰り返しおこなう。
【０００６】
また、人手によらない機械化した繰り返し曲げ試験機はあまり見当たらないが、図４（ａ）に平面図を、図４（ｂ）に側面図を示したような構造が考えられる。根元保持部材５１でアンテナ４１の根元側を固定保持し、アンテナ４１の先端を先端保持部材５２で保持し、この先端保持部材５２に連接しているリンク機構であるアーム５３を屈曲用モータ５４により、所定角度の揺動運動をさせることによりアンテナ４１に屈曲検査を行う。
【０００７】
【発明が解決しようとする課題】
しかしながら、上述のような人手による治具を用いた屈曲試験では、動作の安定性に欠けるため、個々のアンテナに対する評価にばらつきが生じ、検査としては正確さに欠けるためあまり好ましくない。
【０００８】
また、人手によらない上述の繰り返し曲げ試験機による場合は、屈曲した状態でのアンテナの先端と根元との間隔と、屈曲しない状態でのアンテナの先端と根元との間隔が異なるために、屈曲状態においてアンテナに過剰な引張力を負荷してしまうという問題がある。また、屈曲方向を変化させるために、アンテナの先端と根元を保持した状態で軸方向に所定角度を回転させると、部材を構成する各伸縮部分の相対角度が変化する度に、検査・試験条件が変化してしまうという問題もある。
【０００９】
本発明はこれらの事情に基づいてなされたもので、被検査体であるアンテナ等の棒状伸縮部材に過負荷を与えず、安定して正確に検査を行うことのできる棒状伸縮部材の検査方法と検査装置を提供することを目的としている。
【００１０】
【課題を解決するための手段】
本発明によれば、棒状部材の根元部と先端部とをそれぞれ保持部材で保持して、前記先端部を保持している保持部材を曲線状に揺動させ前記棒状部材を屈曲運動させて検査する検査方法において、
前記屈曲運動の際に前記棒状部材の先端部を保持している保持部材が、前記棒状部材の軸方向に移動自在に動作する工程と、
前記根元部の保持部材が前記屈曲運動によって移動する周期を検出手段によって検出する工程と、
前記先端部の保持部材の揺動周期を屈曲機構によって算出する工程と、
前記根元部の保持部材が前記屈曲運動によって移動する周期と前記先端部の保持部材の揺動周期とを比較する工程と、
前記根元部の周期と前記先端部の保持部材の揺動周期とが不一致になるまでの屈曲回数の検出をする工程と
を有することを特徴とする棒状部材の検査方法である。
【００１１】
また本発明によれば、前記棒状部材は、摺動部を介して伸縮自在に設けられた棒状伸縮部材であることを特徴とする棒状部材の検査方法である。
【００１２】
また本発明によれば、前記屈曲運動の際は、前記棒状部材に引張り方向の負荷を付与していることを特徴とする棒状部材の検査方法である。
【００１３】
また本発明によれば、前記棒状部材を所定回数屈曲した後、前記棒状部材を軸周方向に所定角度回転させることを特徴とする棒状部材の検査方法である。
【００１４】
また本発明によれば、棒状部材の軸方向に移動自在に動作し前記棒状部材の先端部を保持している保持部材と、
前記先端部を保持している保持部材を揺動させて前記棒状部材を屈曲運動させる揺動手段と、
前記棒状部材の軸方向を回転軸として回転可能に設けられ前記棒状部材の根元部を保持している保持部材と、
前記屈曲運動による前記根元部の保持部材が移動する周期を検出する検出手段と、
前記先端部の保持部材の揺動周期を算出する屈曲機構と、
前記根元部の保持部材の移動する周期と前記先端部の保持部材の揺動周期とを比較する比較手段と、
前記根元部の周期と前記先端部の保持部材の揺動周期とが不一致になるまでの前記棒状部材の屈曲回数を検出する回数検出手段と
を有することを特徴とする棒状部材の検査装置である。
【００１５】
【発明の実施の形態】
以下、本発明の実施の形態の一例の棒状部材の検査装置について、棒状部材の一例として棒状伸縮部材である携帯電話用のアンテナを対象とした場合を図面を参照して説明する。
【００１６】
図１（ａ）は、本発明の棒状部材の屈曲についての検査装置の構成を示す模式平面図で、図１（ｂ）は、その模式側面図である。
【００１７】
基台１の上には矢印Ａ方向に案内溝２が刻設されたスライドレール３が配設され、このスライドレール３には矢印Ａ方向に移動自在にスライドブロック４が案内溝２に係合している。また、スライドレール３の両端には近接センサ５が設けられている。スライドブロック４には被検査体である棒状伸縮部材のアンテナ６を軸方向に所定角度を回転させる回転手段である軸回転モータ７が載置固定されている。軸回転モータ７の回転軸７ａには、アンテナ６の根元部を保持する根元保持部（保持部材）８が設置されている。なお、アンテナ６は略中央部に摺接部９が設けら、この摺接部９により伸縮自在に形成されている。また、アンテナ６は根元に形成されているねじ部（不図示）が、根元保持部８に形成されているねじ部（不図示）に螺着されて固定される。
【００１８】
根元保持部８と離間した対向位置には、先端保持部（保持部材）１１が設けられている。先端保持部１１は、チャック機構１１ａを備えており、このチャック機構１１ａでアンテナ６の先端を挟持する。この先端保持部１１は矢印Ｂ方向に移動自在なスライドブロック１２の上面に載置固定されている。スライドブロック１２はスライドレール１３の一端側に相互に形成された案内溝１４により移動自在に係合している。スライドレール１３の他端側は、屈曲用モータ１５の回転軸１５ａに固定され揺動手段を形成している。なお、スライドブロック１２とスライドレール１３との摩擦抵抗は、アンテナ６の摺接部９の摩擦抵抗よりも小さく設定さている。
【００１９】
また、スライドブロック１２のチャック機構１１ａと反対側にはワイヤ１６が接続されており、このワイヤ１６の端部にはプーリー１７を介して数百ｇ程度の錘１８が重力方向に接続されている。
【００２０】
次に、この検査装置によるアンテナ６の屈曲検査について説明する。
【００２１】
まず、アンテナ６の根元を根元保持部８に螺着して固定し、また、アンテナ６の先端を先端保持部１１のチャック機構１１ａで挟持して固定する。屈曲用モータ１５を駆動してスライドレール１３を所定角度の変位の揺動運動をおこなわせる。スライドレール１３の揺動運動に伴い先端保持部１１を搭載したスライドブロック１２はスライドレール１３に沿って自由に矢印B方向に移動する。その際、先端保持部１１で挟持されているアンテナ６も先端保持部１１と共に移動する。アンテナ６は屈曲角度が大きくなるほど、アンテナ６は自身の弾性力によって屈曲用モータ１５の回転軸１５ａに近づく方向に移動する。
【００２２】
また、アンテナ６の屈曲角度が小さい場合は、先端保持部１１の端部に取り付けたワイヤ１６がプーリー１７を介して錘１８に接続されているので、先端保持部１１には錘１８によって引張力が負荷される。これにより、先端保持部１１は屈曲用モータ１５の回転軸１５ａから遠ざかる方向に移動し、アンテナ６の摺接部９は伸びた状態を維持できる。これらの動作を所定回数繰り返してアンテナ６の一方向の検査を行う。
【００２３】
次に、一方向の検査が終了したアンテナ６について異なる方向の検査を行う。まず、アンテナ６を挟持している先端保持部１１のチャック機構１１ａを開放した状態で、根元保持部８を軸回転モータ７により所定角度（例えば、９０度）回転させる。回転後に先端保持部１１のチャック機構１１ａを閉じてアンテナ６を挟持する。その状態で、上述と同様の動作を繰り返して行いアンテナ６を検査する。これにより、摺接部９でアンテナ６の芯材が回転することなく、屈曲方向を変化させることが可能となる。
【００２４】
また、根元保持部８を載置したスライドブロック４の往復運動の周期は近接センサ５により検出される。一方、アンテナ６の屈曲運動の周期は屈曲用モータ１５のドライバ信号から算出できる。通常、スライドブロック４の往復運動の周期とアンテナ６の屈曲運動の周期は一致している。したがって、近接センサ５の出力信号と屈曲用モータ１５のドライバ信号の出力とを比較することにより、屈曲検査中にアンテナ６が破断した場合、両周期が不一致となるので破断時の屈曲回数の検出ができる。
【００２５】
なお、上述の実施の形態では、先端保持部１１を錘１８で引張る構成にしたが、錘１８に換えてばねによって引張る構成としてもよい。
【００２６】
また、アンテナ６の破断の検出は、スライドレール３の上を移動するスライドブロック４の動作を近接センサ５で検出したが、他の方法、例えば、フォトマイクロ近接センサと梃子機構による構成によって検出することができる。
【００２７】
また、上述の実施の形態では、アンテナ６を携帯電話の本体と分離した状態で、アンテナ６を単独で検査したが、携帯電話にアンテナ６を装着した状態で検査することもできる。ただし、その場合は、根元保持部８の構造を携帯電話の本体を保持できる構造にする必要がある。
【００２８】
また、上述の実施の形態では、棒状伸縮部材としてアンテナ６を対象としたが、アンテナ６に限らず釣竿等の棒状部材に適用することができる。
【００２９】
以上に説明したように、上述の実施の形態によれば、棒状伸縮部材の所定回数の屈曲検査において、棒状伸縮部材に過負荷をかけることなく検査を行うことができる。
【００３０】
また、棒状伸縮部材の屈曲角度が大きい場合でも、小さい場合でも棒状伸縮部材を常に伸ばした状態で屈曲検査を行うことができる。
【００３１】
また、検査の際に棒状伸縮部材に錘等の負荷をかけているので、常に一定の条件で棒状伸縮部材の検査を行うことができる。
【００３２】
また、検査の際に棒状伸縮部材の屈曲周期等の検出により、検査中に発生した棒状伸縮部材の破断検出を行うことができる。
【００３３】
【発明の効果】
本発明によれば、被検査体であるアンテナ等の棒状部材に過負荷を与えず、安定して正確に検査を行うことができる。
【図面の簡単な説明】
【図１】（ａ）は、本発明の棒状部材の検査装置の構成を示す模式平面図で、（ｂ）は、その模式側面図。
【図２】携帯電話器の外観斜視図。
【図３】従来の検査治具の説明図。
【図４】（ａ）は、従来の棒状部材の検査装置の構成を示す模式平面図で、（ｂ）は、その模式側面図。
【符号の説明】
１…基台、３…スライドレール、４…スライドブロック、５…近接センサ、６…アンテナ（棒状伸縮部材）、７…軸回転モータ、８…根元保持部、９…摺接部、１１…先端保持部、１２…スライドブロック、１３…スライドレール、１５…屈曲用モータ、１６…ワイヤ、１８…錘[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inspection method and apparatus for bending a rod-like member such as an antenna for a mobile phone.
[0002]
[Prior art]
The antenna of the cellular phone is normally stored in a push-in type antenna for storing the antenna 41, which is a small-diameter rod-like elastic member as shown in FIG. 41 is often used. This push-in storage type antenna 41 has a metal wire as a core, and the outer periphery thereof is coated, and an appropriate frictional resistance is given to the storage hole of the telephone body 42 during the push-in.
[0003]
This antenna 41 is unlikely to be carefully stowed from daily use of the mobile phone, and can be pushed smoothly even when the operation is rough, that is, the pressing force on the tip of the antenna 41 does not necessarily follow the axis. In addition, it is necessary to withstand a temporary bending load without causing breakage or permanent deformation. Further, since the antenna 41 is frequently pulled out and stored repeatedly, it is required that the antenna 41 is not permanently deformed or broken by this repeated bending stress.
[0004]
As a core wire used for such an antenna 41, a Ni-Ti alloy or the like is used. For example, as disclosed in Japanese Patent Laid-Open No. 10-13123, the base side of the antenna 41 is fixed using a repeated bending test jig (bending 25 mmR) 43 shown in FIG. After the above-described bending resistance and 1,000 times of bending test, the permanent bending deformation angle θ is required to be 10 degrees or less.
[0005]
As shown in FIG. 3, the repeated bending test jig 43 holds a base portion 45 having a bending guide portion 44 having a curvature radius of 25 mm at an upper portion, and a test piece (antenna 41) on a side surface of the base portion 45. A slit 46 is provided. In the repeated bending test 43, one end side of the antenna 41 is sandwiched between the slits 46 as indicated by a solid line, and the other end of the antenna 41 is manually guided to the guide part 44 until the other end comes to the side of the base 45 opposite to the slit 46 as indicated by a broken line. After bending along, the operation of returning to the original solid line by the elasticity of the material is repeated.
[0006]
Further, although there are not many mechanized repeated bending test machines that do not rely on human hands, a structure such as a plan view in FIG. 4 (a) and a side view in FIG. 4 (b) is conceivable. The base side of the antenna 41 is fixedly held by the base holding member 51, the tip of the antenna 41 is held by the tip holding member 52, and the arm 53 that is a link mechanism connected to the tip holding member 52 is held by the bending motor 54. The antenna 41 is inspected for bending by performing a swinging motion at a predetermined angle.
[0007]
[Problems to be solved by the invention]
However, in the bending test using a manual jig as described above, since the operation is not stable, the evaluation for each antenna varies, and the inspection is not very accurate because it lacks accuracy.
[0008]
Also, in the case of the above-mentioned repeated bending tester that does not rely on human hands, the distance between the tip and root of the antenna when bent is different from the distance between the tip and root of the antenna when not bent. There is a problem that an excessive tensile force is applied to the antenna in the state. Also, in order to change the bending direction, if the predetermined angle is rotated in the axial direction while holding the tip and root of the antenna, the inspection / test conditions are changed each time the relative angle of each stretchable part constituting the member changes. There is also a problem that changes.
[0009]
The present invention has been made based on these circumstances, and does not give an overload to a rod-like elastic member such as an antenna to be inspected, and a method for inspecting a rod-like elastic member that can be inspected stably and accurately. The object is to provide an inspection device.
[0010]
[Means for Solving the Problems]
According to the present invention, the base portion and the tip portion of the rod-shaped member are respectively held by the holding members, the holding member holding the tip portion is swung in a curved shape, and the rod-shaped member is bent and inspected. In the inspection method to
A step in which a holding member that holds the tip of the rod-shaped member during the bending motion operates movably in the axial direction of the rod-shaped member;
A step of detecting, by a detection means, a period in which the holding member of the root portion moves by the bending motion;
Calculating a swing period of the holding member at the tip by a bending mechanism;
Comparing the period in which the holding member of the root part moves by the bending motion with the oscillation period of the holding member of the tip part;
Detecting the number of bends until the period of the root part and the swinging period of the holding member at the tip part do not match; and
It is the inspection method of the rod-shaped member characterized by having .
[0011]
According to the present invention, the rod-shaped member is a rod-shaped stretchable member provided to be stretchable via a sliding portion .
[0012]
According to the invention, there is provided a method for inspecting a rod- shaped member, wherein a load in a tensile direction is applied to the rod-shaped member during the bending motion .
[0013]
According to another aspect of the present invention, the rod-shaped member is bent a predetermined number of times, and then the rod-shaped member is rotated by a predetermined angle in the axial circumferential direction .
[0014]
According to the present invention, the holding member that is movable in the axial direction of the rod-shaped member and holds the tip of the rod-shaped member;
Oscillating means for oscillating the rod-like member by oscillating the holding member holding the tip, and
A holding member that is rotatably provided with the axial direction of the rod-shaped member as a rotation axis, and that holds a root portion of the rod-shaped member;
Detecting means for detecting a period in which the holding member of the root portion moves due to the bending motion;
A bending mechanism for calculating a swing period of the holding member at the tip,
A comparing means for comparing the period of movement of the holding member of the root part and the oscillation period of the holding member of the tip part;
Number-of-times detecting means for detecting the number of times the rod-shaped member is bent until the period of the root portion and the swinging period of the holding member at the tip end are inconsistent;
It is an inspection apparatus of the rod-shaped member characterized by having .
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of a bar-shaped member inspection apparatus according to an embodiment of the present invention will be described with reference to the drawings, in which a mobile phone antenna that is a bar-shaped elastic member is used as an example of a bar-shaped member.
[0016]
Fig.1 (a) is a schematic plan view which shows the structure of the test | inspection apparatus about the bending of the rod-shaped member of this invention, FIG.1 (b) is the model side view.
[0017]
A slide rail 3 having a guide groove 2 engraved in the direction of arrow A is disposed on the base 1, and a slide block 4 engages with the guide groove 2 so as to be movable in the direction of arrow A on the slide rail 3. doing. Proximity sensors 5 are provided at both ends of the slide rail 3. The slide block 4 is fixedly mounted with a shaft rotation motor 7 which is a rotating means for rotating the antenna 6 of the rod-shaped expansion / contraction member, which is an object to be inspected, by a predetermined angle in the axial direction. A root holding portion (holding member) 8 that holds the root portion of the antenna 6 is installed on the rotation shaft 7 a of the shaft rotation motor 7. The antenna 6 is provided with a sliding contact portion 9 at a substantially central portion, and is formed to be extendable and contractable by the sliding contact portion 9. In addition, a screw portion (not shown) formed at the base of the antenna 6 is screwed and fixed to a screw portion (not shown) formed at the base holding portion 8.
[0018]
A tip holding portion (holding member) 11 is provided at a position opposite to the root holding portion 8. The tip holding part 11 includes a chuck mechanism 11a, and the tip of the antenna 6 is clamped by the chuck mechanism 11a. The tip holding portion 11 is mounted and fixed on the upper surface of a slide block 12 that is movable in the direction of arrow B. The slide block 12 is movably engaged by a guide groove 14 formed on one end side of the slide rail 13. The other end of the slide rail 13 is fixed to the rotating shaft 15a of the bending motor 15 to form a swinging means. Note that the frictional resistance between the slide block 12 and the slide rail 13 is set smaller than the frictional resistance of the sliding contact portion 9 of the antenna 6.
[0019]
A wire 16 is connected to the side of the slide block 12 opposite to the chuck mechanism 11a. A weight 18 of about several hundred grams is connected to the end of the wire 16 via a pulley 17 in the direction of gravity. .
[0020]
Next, the bending inspection of the antenna 6 by this inspection apparatus will be described.
[0021]
First, the root of the antenna 6 is screwed and fixed to the root holding portion 8, and the tip of the antenna 6 is clamped and fixed by the chuck mechanism 11 a of the tip holding portion 11. The bending motor 15 is driven to cause the slide rail 13 to swing at a predetermined angle. Equipped with tip holding portion 11 with the swinging movement of the slide rail 13 slide block 12 is free to move in the direction of arrow B along the slide rails 1 3. At that time, the antenna 6 held by the tip holding portion 11 also moves together with the tip holding portion 11. As the bending angle of the antenna 6 increases, the antenna 6 moves in a direction approaching the rotating shaft 15a of the bending motor 15 by its own elastic force.
[0022]
When the bending angle of the antenna 6 is small, the wire 16 attached to the end portion of the tip holding portion 11 is connected to the weight 18 via the pulley 17. Is loaded. Thereby, the tip holding portion 11 moves in a direction away from the rotating shaft 15a of the bending motor 15, and the sliding contact portion 9 of the antenna 6 can be maintained in an extended state. By repeating these operations a predetermined number of times, the antenna 6 is inspected in one direction.
[0023]
Next, inspection in a different direction is performed on the antenna 6 that has been subjected to the inspection in one direction. First, with the chuck mechanism 11a of the tip holding part 11 holding the antenna 6 open, the root holding part 8 is rotated by a predetermined angle (for example, 90 degrees) by the shaft rotation motor 7. After the rotation, the chuck mechanism 11a of the tip holding part 11 is closed and the antenna 6 is clamped. In this state, the antenna 6 is inspected by repeating the same operation as described above. As a result, the bending direction can be changed without rotating the core material of the antenna 6 at the sliding contact portion 9.
[0024]
Further, the proximity sensor 5 detects the cycle of the reciprocating motion of the slide block 4 on which the root holding unit 8 is placed. On the other hand, the period of the bending motion of the antenna 6 can be calculated from the driver signal of the bending motor 15 . Usually, the cycle of the reciprocating motion of the slide block 4 and the cycle of the bending motion of the antenna 6 are the same. Therefore, by comparing the output signal of the proximity sensor 5 with the output of the driver signal of the bending motor 15 , if the antenna 6 breaks during the bending inspection, both periods become inconsistent, so that the number of bendings at the time of breaking is detected. Can do.
[0025]
In the above-described embodiment, the tip holding portion 11 is pulled by the weight 18, but may be pulled by a spring instead of the weight 18.
[0026]
In addition, the breakage of the antenna 6 is detected by the proximity sensor 5 that detects the movement of the slide block 4 that moves on the slide rail 3, but is detected by another method, for example, a configuration using a photomicro proximity sensor and an insulator mechanism. be able to.
[0027]
In the above-described embodiment, the antenna 6 is inspected alone with the antenna 6 separated from the main body of the mobile phone. However, the inspection can also be performed with the antenna 6 attached to the mobile phone. However, in that case, it is necessary to make the structure of the root holding part 8 a structure that can hold the main body of the mobile phone.
[0028]
In the above-described embodiment, the antenna 6 is used as the rod-shaped elastic member. However, the present invention is not limited to the antenna 6 and can be applied to a rod-shaped member such as a fishing rod.
[0029]
As described above, according to the above-described embodiment, it is possible to perform inspection without overloading the rod-shaped elastic member in the bending inspection of the rod-shaped elastic member a predetermined number of times.
[0030]
Even when the bending angle of the rod-shaped elastic member is large or small, the bending inspection can be performed with the rod-shaped elastic member always extended.
[0031]
In addition, since a load such as a weight is applied to the rod-like elastic member during the inspection, the rod-like elastic member can always be inspected under a certain condition.
[0032]
In addition, it is possible to detect the breakage of the rod-shaped elastic member generated during the inspection by detecting the bending period of the rod-shaped elastic member during the inspection.
[0033]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it can test | inspect stably and accurately, without overloading rod-shaped members, such as an antenna which is to-be-inspected object.
[Brief description of the drawings]
FIG. 1 (a) is a schematic plan view showing a configuration of a rod-shaped member inspection apparatus according to the present invention, and FIG. 1 (b) is a schematic side view thereof.
FIG. 2 is an external perspective view of a mobile phone.
FIG. 3 is an explanatory diagram of a conventional inspection jig.
4A is a schematic plan view showing the configuration of a conventional rod-shaped member inspection apparatus, and FIG. 4B is a schematic side view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base, 3 ... Slide rail, 4 ... Slide block, 5 ... Proximity sensor, 6 ... Antenna (bar-shaped expansion-contraction member), 7 ... Shaft rotation motor, 8 ... Root holding part, 9 ... Sliding contact part, 11 ... Tip Holding part, 12 ... slide block, 13 ... slide rail, 15 ... motor for bending, 16 ... wire, 18 ... weight

Claims (5)

棒状部材の根元部と先端部とをそれぞれ保持部材で保持して、前記先端部を保持している保持部材を曲線状に揺動させ前記棒状部材を屈曲運動させて検査する検査方法において、
前記屈曲運動の際に前記棒状部材の先端部を保持している保持部材が、前記棒状部材の軸方向に移動自在に動作する工程と、
前記根元部の保持部材が前記屈曲運動によって移動する周期を検出手段によって検出する工程と、
前記先端部の保持部材の揺動周期を屈曲機構によって算出する工程と、
前記根元部の保持部材が前記屈曲運動によって移動する周期と前記先端部の保持部材の揺動周期とを比較する工程と、
前記根元部の周期と前記先端部の保持部材の揺動周期とが不一致になるまでの屈曲回数の検出をする工程と
を有することを特徴とする棒状部材の検査方法。 In the inspection method of inspecting by holding the base part and the tip part of the rod-like member respectively with holding members, swinging the holding member holding the tip part in a curved shape and bending the rod-like member,
A step in which a holding member that holds the tip of the rod-shaped member during the bending motion operates movably in the axial direction of the rod-shaped member;
A step of detecting, by a detection means, a period in which the holding member of the root portion moves by the bending motion;
Calculating a swing period of the holding member at the tip by a bending mechanism;
Comparing the period in which the holding member of the root part moves by the bending motion with the oscillation period of the holding member of the tip part;
Detecting the number of bends until the period of the root part and the swinging period of the holding member at the tip part do not match; and
A method for inspecting a rod-shaped member characterized by comprising: 前記棒状部材は、摺動部を介して伸縮自在に設けられた棒状伸縮部材であることを特徴とする請求項１記載の棒状部材の検査方法。2. The method for inspecting a rod-shaped member according to claim 1, wherein the rod-shaped member is a rod-shaped stretchable member provided so as to be stretchable via a sliding portion. 前記屈曲運動の際は、前記棒状部材に引張り方向の負荷を付与していることを特徴とする請求項１記載の棒状部材の検査方法。2. The method for inspecting a bar-shaped member according to claim 1, wherein a load in a tensile direction is applied to the bar-shaped member during the bending motion. 前記棒状部材を所定回数屈曲した後、前記棒状部材を軸周方向に所定角度回転させることを特徴とする請求項１記載の棒状部材の検査方法。2. The method for inspecting a rod-shaped member according to claim 1, wherein after the rod-shaped member is bent a predetermined number of times, the rod-shaped member is rotated by a predetermined angle in the axial circumferential direction. 棒状部材の軸方向に移動自在に動作し前記棒状部材の先端部を保持している保持部材と、
前記先端部を保持している保持部材を揺動させて前記棒状部材を屈曲運動させる揺動手段と、
前記棒状部材の軸方向を回転軸として回転可能に設けられ前記棒状部材の根元部を保持している保持部材と、
前記屈曲運動による前記根元部の保持部材が移動する周期を検出する検出手段と、
前記屈曲運動による前記先端部の保持部材の揺動周期を算出する屈曲機構と、
前記根元部の保持部材の移動する周期と前記先端部の保持部材の揺動周期とを比較する比較手段と、
前記根元部の保持部材が移動する周期と前記先端部の保持部材の揺動周期とが不一致になるまでの前記棒状部材の屈曲回数を検出する回数検出手段と
を有することを特徴とする棒状部材の検査装置。 A holding member that is movable in the axial direction of the rod-shaped member and holds the tip of the rod-shaped member;
Oscillating means for oscillating the rod-like member by oscillating the holding member holding the tip, and
A holding member that is rotatably provided with the axial direction of the rod-shaped member as a rotation axis, and that holds a root portion of the rod-shaped member;
Detecting means for detecting a period in which the holding member of the root portion moves due to the bending motion;
A bending mechanism for calculating a swinging period of the holding member at the tip portion by the bending motion ;
A comparing means for comparing the period of movement of the holding member of the root part and the oscillation period of the holding member of the tip part;
A number-of-times detecting means for detecting the number of times the rod-shaped member is bent until the period at which the holding member at the base part moves and the swinging period of the holding member at the tip part are inconsistent;
A bar-shaped member inspection apparatus comprising:
JP2002153646A 2002-05-28 2002-05-28 Inspection method and inspection apparatus for rod-shaped members Expired - Fee Related JP3632012B2 (en)

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