JPH0579962U - Optical coupling device - Google Patents
Optical coupling deviceInfo
- Publication number
- JPH0579962U JPH0579962U JP1783892U JP1783892U JPH0579962U JP H0579962 U JPH0579962 U JP H0579962U JP 1783892 U JP1783892 U JP 1783892U JP 1783892 U JP1783892 U JP 1783892U JP H0579962 U JPH0579962 U JP H0579962U
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- JP
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- Prior art keywords
- leaf spring
- coupling device
- movable piece
- optical coupling
- movable
- Prior art date
- Legal status (The legal status 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 status listed.)
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Abstract
(57)【要約】
【目的】 復帰用板ばねが一体成形された可動切片を有
する光結合装置において、可動切片の装着時、板ばねの
荷重を誤ることなく装着する。
【構成】 可動切片27’の色調を予め、復帰用板ばね
28の荷重に応じて変更しておく。
(57) [Summary] [Purpose] In an optical coupling device having a movable piece integrally formed with a return leaf spring, the leaf spring is attached without error when the movable piece is attached. [Structure] The color tone of the movable piece 27 'is changed in advance according to the load of the return leaf spring 28.
Description
【0001】[0001]
本考案は光結合装置に関し、特に被検出物体の有無を可動切片の回動により間 接的に検出する透過型の光結合装置(フォトインタラプタ)に関する。 The present invention relates to an optical coupling device, and more particularly to a transmissive optical coupling device (photointerrupter) that detects the presence or absence of a detected object by rotating a movable segment.
【0002】[0002]
従来の技術について、図4乃至図7を参照して説明する。 A conventional technique will be described with reference to FIGS. 4 to 7.
【0003】 従来、被検出物体の有無を可動切片の動作により間接的に検出する透過型光結 合装置(フォトインタラプタ)は図4及び図5に示される構造を具備している。 1は被検出物体、2は可動切片、3は発光側スリット、4は受光側スリットであ り、このスリット3,4間の通過路5を可動切片2が被検出物体1の機械的接触 によって開閉する、すなわち検出位置Aおよび非検出位置B間を回動することに より物体の有無を検出している。Conventionally, a transmission type optical coupling device (photointerrupter) which indirectly detects the presence or absence of a detected object by the operation of a movable segment has a structure shown in FIGS. 4 and 5. 1 is an object to be detected, 2 is a movable segment, 3 is a slit on the light emitting side, 4 is a slit on the light receiving side. The presence or absence of an object is detected by opening and closing, that is, rotating between the detection position A and the non-detection position B.
【0004】 この可動切片2は、光結合装置本体6の発光部7および受光部8の上部に夫々 設けられた軸受9,10を介して本体6に取付けられている。さらに可動切片2 は、その横軸11に巻付けられている復帰用巻きばね12により常に非検出姿勢 B方向へ付勢されている。したがって、可動切片2は、被検出物体1の外力が加 わらない限り通過路5の端部の回動停止壁13に強制的に押さえ付けられ、非検 出位置Bに位置付けられている。The movable piece 2 is attached to the main body 6 via bearings 9 and 10 provided on the light emitting portion 7 and the light receiving portion 8 of the optical coupling device main body 6, respectively. Further, the movable segment 2 is constantly urged in the non-detected posture B direction by the return winding spring 12 wound around the horizontal axis 11. Therefore, the movable segment 2 is forcibly pressed against the rotation stop wall 13 at the end of the passage 5 and positioned at the non-detection position B unless the external force of the detected object 1 is applied.
【0005】 なお、発光部7は発光素子を収納し、受光部8は受光素子を収納している。The light emitting unit 7 houses a light emitting element, and the light receiving unit 8 houses a light receiving element.
【0006】 ところで、上記従来構造の光結合装置を組立てるには、本体6に可動切片2を 取付ける際、巻きばね12を横軸11に挿入し、巻きばね12の一端15を発光 部7に係合し、他端17を可動切片2に係合しなければならない。By the way, in order to assemble the above-mentioned conventional optical coupling device, when the movable piece 2 is attached to the main body 6, the winding spring 12 is inserted into the horizontal shaft 11, and one end 15 of the winding spring 12 is engaged with the light emitting portion 7. The other end 17 must engage the movable segment 2.
【0007】 したがって、復帰用ばねの可動切片への装着時の作業性が悪くなり、多大な時 間と労力を要する。[0007] Therefore, the workability when mounting the return spring on the movable segment becomes poor, and a great deal of time and labor is required.
【0008】 そこで作業性の向上のために、上記の巻きばねに代えて板ばねを使用したもの が考案されている。Therefore, in order to improve workability, a device using a leaf spring in place of the above-mentioned coil spring has been devised.
【0009】 この光結合装置は図6及び図7に示すように、発光部21と受光部22とが通 過路23を挟んで対向配置された光結合装置本体24と、該本体24に回転自在 に支持され被検出物体25の機械的接触により横軸26周りに前記通過路23を 通過して検出位置Aおよび非検出位置B間を回動する可動切片27とを備え、被 検出物体25の有無を可動切片27の回動により間接的に検出する光結合装置に おいて、前記可動切片27に、可動切片27を非検出位置B方向に付勢する復帰 用板ばね28が一体成形されたものである。As shown in FIGS. 6 and 7, this optical coupling device includes an optical coupling device body 24 in which a light emitting portion 21 and a light receiving portion 22 are opposed to each other with a passage 23 in between, and the optical coupling device main body 24 is rotatable. Of the object 25 to be detected, which is supported by the mechanical contact of the object 25 to be detected and which passes through the passage 23 around the horizontal axis 26 and rotates between the detection position A and the non-detection position B. In the optical coupling device that indirectly detects the presence or absence of the movable piece 27 by rotating the movable piece 27, the movable piece 27 is integrally formed with a return leaf spring 28 for urging the movable piece 27 toward the non-detection position B. It is a thing.
【0010】 このように、復帰用板ばね28が可動切片27に一体的に設けられているので 、復帰用ばねの可動切片への装着作業が簡略化でき、作業効率が向上する。As described above, since the return leaf spring 28 is provided integrally with the movable piece 27, the work of attaching the return spring to the movable piece can be simplified and the work efficiency is improved.
【0011】[0011]
ところで、前述のように復帰用板ばね28を使用することにより作業性は向上 するが、なお以下のような問題があった。 By the way, although the workability is improved by using the return leaf spring 28 as described above, there are still the following problems.
【0012】 即ち、被検出物体によって復帰用板ばね28の荷重を変える必要があるが、板 ばねの形状が同じである為ばね装着工程の際に、誤って異なる荷重の復帰用板ば ねを取り付けてしまう場合があった。That is, it is necessary to change the load of the return leaf spring 28 depending on the object to be detected, but since the shape of the leaf spring is the same, a return leaf spring having a different load may be erroneously used during the spring mounting process. There was a case to be attached.
【0013】 そこで本考案の目的は、復帰用板ばねの装着工程の際、異なる荷重の復帰用板 ばねの誤装着を防止できる光結合装置を提供することにある。Therefore, an object of the present invention is to provide an optical coupling device capable of preventing erroneous mounting of a returning leaf spring having a different load during the step of mounting the returning leaf spring.
【0014】[0014]
【課題を解決するための手段】 前記目的を達成するために本考案は、発光部と受光部とが通過路を挟んで対向 配置された光結合装置本体と、該本体に回転自在に支持され被検出物体の機械的 接触により横軸周りに前記通過路を通過して検出位置および非検出位置間を回動 する可動切片とを備え、前記可動切片に該可動切片を非検出位置方向に付勢する 復帰用板ばねが一体成形され、且つ前記可動切片の色調が前記復帰用板ばねの荷 重に応じて定められてなることを特徴とする。In order to achieve the above object, the present invention provides an optical coupling device main body in which a light emitting part and a light receiving part are arranged to face each other with a passage in between, and is rotatably supported by the main body. A movable segment that passes between the detection path and the non-detection position by passing through the passage around the horizontal axis by mechanical contact with the detected object, and attaches the movable segment to the non-detection position direction. The biasing return leaf spring is integrally formed, and the color tone of the movable piece is determined according to the load of the return leaf spring.
【0015】[0015]
本考案の光結合装置は、以上のように、可動切片の色調が復帰用板ばねの荷重 に応じて変更されているので、可動切片の装着作業時において復帰用板ばねの荷 重を一目で確実に識別でき、誤装着を防止でき信頼性向上を図れる。 As described above, in the optical coupling device of the present invention, since the color tone of the movable piece is changed according to the load of the restoring leaf spring, the load of the restoring leaf spring can be loaded at a glance when mounting the movable piece. It can be surely identified, erroneous mounting can be prevented, and reliability can be improved.
【0016】[0016]
本考案の一実施例について図1乃至図3を参照して説明する。 An embodiment of the present invention will be described with reference to FIGS.
【0017】 図1は本実施例による光結合装置の斜視図、図2は本実施例による可動切片の 取付工程概略図、図3は本実施例による可動切片の斜視図である。FIG. 1 is a perspective view of an optical coupling device according to the present embodiment, FIG. 2 is a schematic view of a mounting process of a movable piece according to the present embodiment, and FIG. 3 is a perspective view of the movable piece according to the present embodiment.
【0018】 なお、図4乃至図7に示す従来例と同一機能部分には同一記号を付している。 図1に示す如く、本実施例の透過型光結合装置(フォトインタラプタ)は、発 光部21と受光部22とが通過路23を挟んで対向配置された光結合装置本体2 4と、該本体24に回転自在に支持され被検出物体25の機械的接触により横軸 26周りに前記通過路23を通過して検出位置Aおよび非検出位置B間を回動す る可動切片27’とを備え、被検出物体25の有無を可動切片27’の回動によ り間接的に検出する。The same functional parts as those of the conventional example shown in FIGS. 4 to 7 are designated by the same symbols. As shown in FIG. 1, the transmissive optical coupling device (photointerrupter) of the present embodiment includes an optical coupling device main body 24 in which a light emitting portion 21 and a light receiving portion 22 are opposed to each other with a passage 23 interposed therebetween. A movable segment 27 ', which is rotatably supported by the main body 24 and rotates between the detection position A and the non-detection position B by passing through the passage 23 around the horizontal axis 26 by mechanical contact with the detected object 25. The presence or absence of the detected object 25 is indirectly detected by the rotation of the movable segment 27 '.
【0019】 そして、前記可動切片27’に、可動切片27’を非検出位置B方向に付勢す る復帰用板ばね28が一体成形されている。A return leaf spring 28 for urging the movable piece 27 'toward the non-detection position B is integrally formed with the movable piece 27'.
【0020】 ここで、可動切片27’は後述するように、復帰用板ばね28の荷重に対応し て色調を予め定めておく。Here, as will be described later, the movable segment 27 ′ has a predetermined color tone corresponding to the load of the return leaf spring 28.
【0021】 以下、色調を定めた可動切片27’を含む光結合装置の構造及び動作について 詳細に説明する。Hereinafter, the structure and operation of the optical coupling device including the color-definable movable piece 27 ′ will be described in detail.
【0022】 前記本体24は、図1の如く、遮光性樹脂により発光部21と、受光部22と 、該発光部21および受光部22を連結する連結部30とから通過路23を有す る矩形に形成されている。As shown in FIG. 1, the main body 24 has a passage 23 from a light emitting portion 21, a light receiving portion 22, and a connecting portion 30 connecting the light emitting portion 21 and the light receiving portion 22 with a light shielding resin. It is formed in a rectangular shape.
【0023】 前記発光部21は、発光側リードフレーム31に搭載された発光素子が収納さ れている。前記受光部22は、受光側リードフレーム32に搭載された受光素子 が収納されている。該発光部21および受光部22の対向面34,35には、発 光素子および受光素子の光路を形成する短冊形のスリット37,38が設けられ ている。該発光側スリット37は、発光部21の対向面34の中央部より下方に 切欠れており、受光側スリット25は発光素子の感度を上げるため受光部22の 対向面35の長手方向に沿って上方を貫通するよう切欠れている。The light emitting unit 21 houses a light emitting element mounted on the light emitting side lead frame 31. The light receiving section 22 accommodates a light receiving element mounted on the light receiving side lead frame 32. Strip-shaped slits 37 and 38 that form the optical paths of the light emitting element and the light receiving element are provided on the facing surfaces 34 and 35 of the light emitting section 21 and the light receiving section 22, respectively. The light emitting side slit 37 is cut out below the central portion of the facing surface 34 of the light emitting portion 21, and the light receiving side slit 25 extends along the longitudinal direction of the facing surface 35 of the light receiving portion 22 in order to increase the sensitivity of the light emitting element. Notched so that it penetrates upward.
【0024】 前記連結部30の上部には、可動切片27’の非検出位置B方向への回動を停 止させる山形の回動停止壁41が通過路23に向かって突出形成されている。該 停止壁41の板ばね28側の面(テーパ部)41aがテーパ状に形成されている のは、板ばね28が可動切片27’とともに検出位置A方向へ回動するのを防止 し板ばね28に可動切片27’の非検出位置B方向への付勢力を与えるためであ り、かつ可動切片27’の本体24への装着時に板ばね28を容易に案内するた めでもある。A mountain-shaped rotation stopping wall 41 for stopping the rotation of the movable piece 27 ′ in the direction of the non-detection position B is formed on the upper portion of the connecting portion 30 so as to project toward the passage 23. The surface (tapered portion) 41a of the stop wall 41 on the plate spring 28 side is formed in a tapered shape to prevent the plate spring 28 from rotating together with the movable segment 27 'in the detection position A direction. This is to apply a biasing force to the movable piece 27 'in the direction of the non-detection position B, and also to easily guide the leaf spring 28 when the movable piece 27' is attached to the main body 24.
【0025】 前記横軸26は、発光部21および受光部22の上部に夫々一体成形された軸 受44,45間に回転自在に差渡しされている。該横軸の両端部は、図3の如く 、軸受44,45への嵌入を可能にするため、小径に設けられた小径部26a, 26bを有している。The horizontal shaft 26 is rotatably provided between bearings 44 and 45 which are integrally formed on the light emitting portion 21 and the light receiving portion 22, respectively. As shown in FIG. 3, both ends of the horizontal axis have small diameter portions 26a, 26b provided with small diameters so that they can be fitted into the bearings 44, 45.
【0026】 前記軸受44,45は図1の如く、横軸26の嵌入時に弾性変形してその嵌入 を容易にする軸受孔44a,45aを有する略C字形に形成されている。As shown in FIG. 1, the bearings 44 and 45 are formed in a substantially C-shape having bearing holes 44 a and 45 a that are elastically deformed when the horizontal shaft 26 is fitted to facilitate the fitting.
【0027】 このC字形の軸受44,45は、板ばね28により横軸26が上方へ抜け出る のを防止するようその開口量が規制されている。The opening amounts of the C-shaped bearings 44 and 45 are regulated by the leaf spring 28 so as to prevent the horizontal shaft 26 from coming out upward.
【0028】 前記可動切片27’は、横軸26と、被検出物体25と接触する接触片51と 、該接触片51の下方に配され、図7のように可動切片27’が被検出位置Bに 位置したときに通過路23を遮断片52から構成されている。該接触片51およ び遮断片52は、横軸26の中央部に一体成形されている。なお、横軸26、接 触片51および遮断片52は、熱可塑性樹脂を金型により射出してインサート成 形されている。The movable piece 27 ′ is arranged below the contact piece 51 and the contact piece 51 that comes into contact with the object 25 to be detected, and the movable piece 27 ′ is located at the detected position as shown in FIG. When located at B, the passage 23 is constituted by a blocking piece 52. The contact piece 51 and the blocking piece 52 are integrally formed in the central portion of the horizontal shaft 26. The horizontal shaft 26, the contact piece 51, and the blocking piece 52 are insert-molded by injecting a thermoplastic resin with a mold.
【0029】 前記板ばね28は、ばね鋼を材質とする金属板であり、可動切片27’を金型 で成形する際、同時にインサートされ横軸26の中央部に位置するよう一体成形 されている。該板ばね28の先端55は、図7の如く、可動切片27’の本体2 4への装着時に、回動停止壁41のテーパ部41aに容易に案内される折曲形成 されている。The leaf spring 28 is a metal plate made of spring steel, and is integrally molded so as to be positioned at the center of the horizontal shaft 26 when the movable piece 27 ′ is molded by a mold. .. As shown in FIG. 7, the tip end 55 of the leaf spring 28 is formed in a bent shape so as to be easily guided to the taper portion 41a of the rotation stopping wall 41 when the movable piece 27 'is attached to the main body 24.
【0030】 上記構成において、可動切片27’を熱可塑性樹脂を射出して金型で成形する 際、同時に復帰用板ばね28を金型内で一体成形する。In the above structure, when the movable piece 27 ′ is molded with the mold by injecting the thermoplastic resin, at the same time, the return leaf spring 28 is integrally molded in the mold.
【0031】 そして、図2の如く、可動切片27’を上方から本体24に装着する。そうす ると、横軸26が軸受44,45を弾性変形させ、板ばね28の先端55は回動 停止壁41の頂点に当接する。さらに嵌入を続けると、横軸26は、軸受孔44 a,45aに係合し軸受44,45は弾性復元する。一方、板ばね28の先端5 5は、回転停止壁41のばね案内用テーパ部41aに沿って案内される。これに より、板ばね28は、可動切片27’の非検出位置B方向への付勢力が保持され ることになる。Then, as shown in FIG. 2, the movable piece 27 ′ is attached to the main body 24 from above. Then, the horizontal shaft 26 elastically deforms the bearings 44 and 45, and the tip 55 of the leaf spring 28 contacts the apex of the rotation stop wall 41. When the fitting is further continued, the horizontal shaft 26 is engaged with the bearing holes 44a and 45a, and the bearings 44 and 45 are elastically restored. On the other hand, the tip 55 of the leaf spring 28 is guided along the spring guiding taper portion 41 a of the rotation stop wall 41. As a result, the leaf spring 28 holds the biasing force of the movable segment 27 'toward the non-detection position B.
【0032】 ここで、可動切片27’の装着時、可動切片27’の色調は板ばね28の荷重 に応じて予め定められているので、必要な荷重の可動切片を一目で確実に選択で き誤装着することがない。Here, when the movable piece 27 ′ is attached, the color tone of the movable piece 27 ′ is predetermined according to the load of the leaf spring 28, so that the movable piece having the required load can be reliably selected at a glance. It will not be installed incorrectly.
【0033】 上記の構造において、可動切片27’は、図7の従来例と同様、被検出物体2 5の機械的接触により通過路23を通って非検出位置Bから検出位置Aに回動し 被検出物体25の有無を検出する。そして、被検出物体25の検出後、可動切片 27’に対する被検出物体25の接触がなくなると、可動切片27’は板ばね2 8により非検出位置B方向に付勢されているので、可動切片27’は非検出位置 Bに戻り、連続的に被検出物体25の検出が可能となる。In the above structure, the movable segment 27 ′ rotates from the non-detection position B to the detection position A through the passage 23 by the mechanical contact of the detected object 25, as in the conventional example of FIG. The presence or absence of the detected object 25 is detected. Then, after the detection of the detected object 25, when the detected object 25 does not come into contact with the movable piece 27 ′, the movable piece 27 ′ is urged in the non-detection position B direction by the leaf spring 28. 27 ′ returns to the non-detection position B, and the detected object 25 can be continuously detected.
【0034】 このように、復帰用板ばね28が可動切片27’に一体的に設けられているの で、復帰用ばねの可動切片への装着作業が簡易である。As described above, since the return leaf spring 28 is integrally provided on the movable piece 27 ′, the work of mounting the return spring on the movable piece is simple.
【0035】 また、回動停止壁41にばね案内用テーパ部41aを設けることにより、可動 切片27’を上方から本体24に装着するだけで、板ばね28に可動切片27’ の非検出位置B方向への付勢力を付与することができ、可動切片の本体への装着 作業も簡単である。Further, by providing the spring guide taper portion 41a on the rotation stop wall 41, it is only necessary to mount the movable segment 27 'on the main body 24 from above, and the leaf spring 28 is allowed to detect the non-detection position B of the movable segment 27'. A biasing force can be applied in the direction, and the work of attaching the movable segment to the main body is easy.
【0036】 なお、上記本実施例においては、板ばね28は回動停止壁41のテーパ部41 aにより可動切片27’を非検出位置B方向へ付勢しているが、これ以外にも板 ばね28に可動切片27’を非検出位置B方向へ付勢させる構成であれば良い。In the present embodiment, the leaf spring 28 urges the movable segment 27 ′ toward the non-detection position B by the taper portion 41 a of the rotation stop wall 41. It suffices that the spring 28 bias the movable segment 27 ′ toward the non-detection position B.
【0037】 上述のように本実施例の光結合装置においては、可動切片27’の色調を板ば ね28の荷重に対応して予め定めている。As described above, in the optical coupling device according to the present embodiment, the color tone of the movable piece 27 ′ is predetermined corresponding to the load of the plate spring 28.
【0038】 これにより、可動切片27’の装着作業において、板ばね28の荷重を一目で 確実に識別でき、異なる荷重の板ばね28を誤って取り付けてしまうことを防止 できる。このように本実施例によれば、従来発生していた板ばね28の誤装着と いう問題を解消でき信頼性向上を図れる。This makes it possible to surely identify the load of the leaf spring 28 at a glance when mounting the movable segment 27 ′, and prevent the leaf springs 28 having different loads from being mistakenly attached. As described above, according to this embodiment, it is possible to solve the problem of erroneous mounting of the leaf spring 28 that has occurred in the past and improve reliability.
【0039】 また、可動切片27’の遮光片52の材料として遮光性の黒色樹脂を使用すれ ば可動切片27’の遮光性を向上でき、さらに信頼性及び光学特性を向上できる 。If a light-shielding black resin is used as the material of the light-shielding piece 52 of the movable piece 27 ', the light-shielding property of the movable piece 27' can be improved, and the reliability and the optical characteristics can be further improved.
【0040】[0040]
以上説明したように本考案によれば、被検出物体の有無を復帰用ばねを備えた 可動切片の回動により間接的に検出する透過型の光結合装置において、可動切片 の装着工程の際、復帰用ばねの荷重を確実に識別でき、異なる荷重の復帰用ばね の誤装着を防止でき信頼性向上を図れる。 As described above, according to the present invention, in the transmission type optical coupling device that indirectly detects the presence or absence of the detected object by the rotation of the movable segment provided with the return spring, during the mounting process of the movable segment, It is possible to reliably identify the load of the return spring, prevent erroneous mounting of the return spring with different loads, and improve reliability.
【図1】本考案の一実施例による光結合装置の斜視図で
ある。FIG. 1 is a perspective view of an optical coupling device according to an embodiment of the present invention.
【図2】本考案の一実施例による可動切片の取付工程概
略図である。FIG. 2 is a schematic view of a mounting process of a movable section according to an embodiment of the present invention.
【図3】本考案の一実施例による可動切片の斜視図であ
る。FIG. 3 is a perspective view of a movable section according to an embodiment of the present invention.
【図4】従来例による光結合装置の斜視図である。FIG. 4 is a perspective view of an optical coupling device according to a conventional example.
【図5】図4のY−Y断面図である。5 is a cross-sectional view taken along line YY of FIG.
【図6】他の従来例による光結合装置の斜視図である。FIG. 6 is a perspective view of an optical coupling device according to another conventional example.
【図7】図6のX−X断面図である。7 is a cross-sectional view taken along line XX of FIG.
21 発光部 22 受光部 23 通過路 24 装置本体 27’ 可動切片 28 復帰用板ばね 21 Light emitting part 22 Light receiving part 23 Passage path 24 Device body 27 'Movable segment 28 Leaf spring for return
Claims (1)
配置された光結合装置本体と、該本体に回転自在に支持
された被検出物体の機械的接触により横軸周りに前記通
過路を通過して検出位置および非検出位置間を回動する
可動切片とを備え、 前記可動切片に該可動切片を非検出位置方向に付勢する
復帰用板ばねが一体成形され、且つ前記可動切片の色調
が前記復帰用板ばねの荷重に応じて定められてなること
を特徴とする光結合装置。1. An optical coupling device main body in which a light emitting part and a light receiving part are arranged to face each other with a passageway in between, and the object to be detected rotatably supported by the main body is mechanically contacted to pass through the optical axis around the horizontal axis. A movable leaf that passes through a path and rotates between a detection position and a non-detection position, and a return leaf spring that biases the movable segment in the non-detection position direction is integrally formed with the movable piece, and An optical coupling device, wherein the color tone of the section is determined according to the load of the return leaf spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1783892U JPH0579962U (en) | 1992-03-31 | 1992-03-31 | Optical coupling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1783892U JPH0579962U (en) | 1992-03-31 | 1992-03-31 | Optical coupling device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0579962U true JPH0579962U (en) | 1993-10-29 |
Family
ID=11954826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1783892U Pending JPH0579962U (en) | 1992-03-31 | 1992-03-31 | Optical coupling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0579962U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007230750A (en) * | 2006-03-02 | 2007-09-13 | Murata Mach Ltd | Sheet carrying detection mechanism and sheet carrying device with same |
JP2009249145A (en) * | 2008-04-09 | 2009-10-29 | Fuji Xerox Co Ltd | Position detecting apparatus, paper thickness detecting apparatus, belt position detecting apparatus, and image forming apparatus |
-
1992
- 1992-03-31 JP JP1783892U patent/JPH0579962U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007230750A (en) * | 2006-03-02 | 2007-09-13 | Murata Mach Ltd | Sheet carrying detection mechanism and sheet carrying device with same |
JP2009249145A (en) * | 2008-04-09 | 2009-10-29 | Fuji Xerox Co Ltd | Position detecting apparatus, paper thickness detecting apparatus, belt position detecting apparatus, and image forming apparatus |
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