JP3429952B2 - Image reading device - Google Patents
Image reading deviceInfo
- Publication number
- JP3429952B2 JP3429952B2 JP15925296A JP15925296A JP3429952B2 JP 3429952 B2 JP3429952 B2 JP 3429952B2 JP 15925296 A JP15925296 A JP 15925296A JP 15925296 A JP15925296 A JP 15925296A JP 3429952 B2 JP3429952 B2 JP 3429952B2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- carriage
- spring
- fixed spring
- fixed
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mounting And Adjusting Of Optical Elements (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、光源と複数のミ
ラーをキャリッジに保持して副走査方向に往復移動し原
稿より画像情報の読取りをおこなう画像読取装置、特に
複数のミラーの脱落の防止に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for holding a light source and a plurality of mirrors on a carriage and reciprocatingly moving in a sub-scanning direction to read image information from a document, and more particularly to preventing a plurality of mirrors from falling off. It is a thing.
【０００２】[0002]
【従来の技術】光源と複数のミラーをキャリッジに保持
した状態で副走査方向に往復移動して原稿の画像情報を
読み取る画像読取装置が、例えば特開平４−２５７１６
２号公報，特開平５−４５５７１号公報，特開平５−４
５５７２号公報等に示されている。特開平４−２５７１
６２号公報に示された装置は、図１０の斜視図に示すよ
うに、キャリッジ１のミラー保持穴８に外側からＵ字状
の板ばね３１を挿入し、板ばね３１の弾性力でミラー７
をキャリッジ１に保持している。2. Description of the Related Art An image reading apparatus for reciprocating in a sub-scanning direction to read image information of an original while holding a light source and a plurality of mirrors on a carriage is disclosed in, for example, Japanese Patent Application Laid-Open No. 4-25716.
No. 2, JP-A-5-45571, JP-A-5-4
No. 5572, etc. JP-A-4-2571
As shown in the perspective view of FIG. 10, in the device disclosed in Japanese Patent Publication No. 62, a U-shaped leaf spring 31 is inserted into the mirror holding hole 8 of the carriage 1 from the outside, and the elastic force of the leaf spring 31 causes the mirror 7 to move.
Are held on the carriage 1.
【０００３】また、特開平５−４５５７１号公報や特開
平５−４５５７２号公報に示された装置は、ミラー保持
穴に挿入されたミラー端部を中央に突出部を有する板ば
ねでミラー裏面から押さえてミラーを保持している。Further, the devices disclosed in Japanese Patent Laid-Open Nos. 5-45571 and 5-45572 are leaf springs having a protrusion at the center of the mirror end inserted in the mirror holding hole, and are provided from the rear surface of the mirror. Hold down and hold the mirror.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、Ｕ字状
の板ばねをキャリッジの外側からミラー保持穴を挿入し
てミラーを保持したり、ミラ−の裏面を板ばねで押さえ
るようにしていると、振動や衝撃によってミラーが外側
に移動したときに、ミラ−を保持している板ばねが簡単
に外れてしまい、ミラーがキャリッジより脱落し破損す
る危険性がある。However, if a U-shaped leaf spring is inserted into the mirror holding hole from the outside of the carriage to hold the mirror, or the back surface of the mirror is pressed by the leaf spring, When the mirror moves outward due to vibration or impact, the leaf spring holding the mirror easily comes off, and there is a risk that the mirror will fall off the carriage and be damaged.
【０００５】この発明はかかる短所を解消するためにな
されたものであり、ミラーの脱落または破損を防止して
ミラーをキャリッジに安定して保持することができる画
像読取装置を得ることを目的とするものである。The present invention has been made to solve the above disadvantages, and an object of the present invention is to provide an image reading apparatus capable of preventing the mirror from falling off or being damaged and stably holding the mirror on the carriage. It is a thing.
【０００６】[0006]
【課題を解決するための手段】この発明に係る画像読取
装置は、両側壁に複数のミラー保持穴が設けられ、光源
と複数のミラーを保持して副走査方向に往復移動するキ
ャリッジと、キャリッジのミラー保持穴にミラーを固定
する固定ばねを有し、固定ばねはＵ字状の板ばねからな
り、Ｕ字状に形成された両端部には外側に鋭角で曲げら
れた鍔と、一方の鍔からＵ字状の溝内に突出した押えば
ねを有し、該固定ばねのＵ字状の溝内にミラ−の端部を
挿入した状態でキャリッジの両側壁の内側からミラ−保
持穴に挿入してミラ−をキャリッジに保持させることを
特徴とする。SUMMARY OF THE INVENTION An image reading apparatus according to the present invention is provided with a plurality of mirror holding holes on both side walls, a carriage that holds a light source and a plurality of mirrors, and reciprocates in a sub-scanning direction. Has a fixing spring for fixing the mirror in the mirror holding hole, and the fixing spring is composed of a U-shaped leaf spring, and at both ends formed in the U-shape, a collar bent outward at an acute angle and one of the two are formed. It has a holding spring projecting from the collar into the U-shaped groove, and from the inside of both side walls of the carriage to the mirror holding hole with the end of the mirror inserted in the U-shaped groove of the fixed spring. It is characterized in that the mirror is inserted and held on the carriage.
【０００７】この発明に係る第２の画像読取装置は、両
側壁に複数のミラー保持穴が設けられ、光源と複数のミ
ラーを保持して副走査方向に往復移動するキャリッジ
と、キャリッジのミラー保持穴にミラーを固定する固定
ばねを有し、キャリッジのミラー保持穴は内周面の長辺
の中央部に突出した突起を有し、固定ばねはＵ字状の板
ばねからなり、Ｕ字状に形成された一方の端部には外側
に鋭角で曲げられた鍔を有し、鍔と他方のばね片にキャ
リッジのミラー保持穴の突起と嵌合するガイド穴を有
し、該固定ばねをキャリッジの両側壁に外側から挿入
し、固定ばねのＵ字状の溝内でミラーの端部を保持する
ことを特徴とする。In a second image reading apparatus according to the present invention, a plurality of mirror holding holes are provided on both side walls, a carriage that holds a light source and a plurality of mirrors and reciprocates in the sub-scanning direction, and a carriage holding of the carriage. There is a fixed spring for fixing the mirror in the hole, the mirror holding hole of the carriage has a protrusion protruding at the center of the long side of the inner peripheral surface, and the fixed spring is a U-shaped leaf spring, and has a U-shaped shape. Has a flange bent outward at an acute angle, and the flange and the other spring piece have a guide hole for fitting with a protrusion of the mirror holding hole of the carriage, It is characterized in that it is inserted into both side walls of the carriage from the outside and holds the end of the mirror in the U-shaped groove of the fixed spring.
【０００８】この発明に係る第３の画像読取装置は、両
側壁に複数のミラー保持穴が設けられ、光源と複数のミ
ラーを保持して副走査方向に往復移動するキャリッジ
と、キャリッジのミラー保持穴にミラーを固定する固定
ばねを有し、キャリッジのミラー保持穴は内周面の長辺
の中央部に突出した突起を有し、固定ばねはＵ字状の板
ばねからなり、Ｕ字状に形成された一方の端部には外側
に鋭角で曲げられた鍔を有し、鍔にキャリッジのミラー
保持穴の突起と嵌合するガイド穴を有し、他方のばね片
にキャリッジのミラー保持穴の突起に嵌まり込む凹部を
有し、該固定ばねをキャリッジの両側壁に外側から挿入
し、固定ばねのＵ字状の溝内でミラーの端部を保持する
ことを特徴とする。In a third image reading apparatus according to the present invention, a plurality of mirror holding holes are provided on both side walls, a carriage that holds a light source and a plurality of mirrors and reciprocates in the sub-scanning direction, and a carriage holding of the carriage. There is a fixed spring for fixing the mirror in the hole, the mirror holding hole of the carriage has a protrusion protruding at the center of the long side of the inner peripheral surface, and the fixed spring is a U-shaped leaf spring, and has a U-shaped shape. Has a flange bent outward at an acute angle on one end, and the flange has a guide hole that fits into the protrusion of the mirror holding hole of the carriage, and the other spring piece holds the carriage mirror of the carriage. It is characterized in that it has a concave portion that fits into the projection of the hole, the fixed spring is inserted into both side walls of the carriage from the outside, and the end portion of the mirror is held in the U-shaped groove of the fixed spring.
【０００９】上記固定ばねはＵ字状に形成された両端部
の根元の両側から両端部に向かって突出した板ばねを有
すると良い。It is preferable that the fixed spring has leaf springs which are formed in a U shape and project from both sides of the roots of both ends toward both ends.
【００１０】[0010]
【発明の実施の形態】この発明においては、読取光学系
のキャリッジの両側壁にミラ−を保持するミラ−保持穴
を有し、ミラ−保持穴にミラ−の端部を固定ばねで固定
する。固定ばねは、Ｕ字状の板ばねからなり、Ｕ字状に
形成された板ばねの両端部には外側に鋭角で曲げられた
鍔と、一方の鍔からＵ字状の溝内に突出した押えばねを
有する。そして、固定ばねのＵ字状の溝内にミラ−の端
部を挿入し、押えばねとＵ字状の板ばねの一方のばね片
でミラ−を挾み込んで固定ばねをミラ−の端部に固定す
る。この状態で固定ばねを取り付けたミラ−の端部をミ
ラ−保持穴に挿入し、固定ばねの両端の鍔の端部をキャ
リッジの内壁に当て、衝撃等によりミラ−に長手方向の
力が加えられても固定ばねがキャリッジから外れること
を防ぐ。また、ミラ−に長手方向の力が加えられたとき
のミラ−の長手方向の移動量を固定ばねの鍔の弾性で抑
制し、ミラ−がキャリッジから脱落することを防ぐ。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a mirror holding hole for holding a mirror is provided on both side walls of a carriage of a reading optical system, and an end portion of the mirror is fixed to the mirror holding hole by a fixing spring. . The fixed spring is composed of a U-shaped leaf spring, and a flange bent outward at an acute angle is provided at both ends of the U-shaped leaf spring, and one of the flanges protrudes into the U-shaped groove. It has a presser spring. Then, insert the end of the mirror into the U-shaped groove of the fixed spring, and sandwich the mirror with one spring piece of the holding spring and the U-shaped plate spring to insert the fixed spring into the end of the mirror. Fixed to the section. In this state, insert the ends of the mirror with the fixed springs into the mirror holding holes, apply the ends of the collars at both ends of the fixed springs to the inner wall of the carriage, and apply a force in the longitudinal direction to the mirrors by an impact or the like. Prevents the fixed spring from disengaging from the carriage when broken. Further, the amount of movement of the mirror in the longitudinal direction when a force is applied to the mirror in the longitudinal direction is suppressed by the elasticity of the collar of the fixed spring to prevent the mirror from falling out of the carriage.
【００１１】また、この発明の他の固定ばねは、Ｕ字状
に形成された板ばねの一方の端部にだけ外側に鋭角で曲
げた鍔を有する。そしてキャリッジのミラ−保持穴の長
辺の中央部にそれぞれ突起を設け、固定ばねの鍔と、鍔
のないばね片にミラー保持穴の突起とそれぞれ嵌合する
ガイド穴を設けておく。Further, another fixed spring of the present invention has a flange bent outward at an acute angle only at one end of a U-shaped leaf spring. A protrusion is provided in the center of the long side of the mirror holding hole of the carriage, and a flange of the fixed spring and a guide hole for fitting the protrusion of the mirror holding hole are provided in the spring piece without the flange.
【００１２】この固定ばねを使用してミラ−をミラ−保
持穴に固定するときは、ミラ−保持穴にミラ−の端部を
挿入しておき、固定ばねのＵ字状の板ばねでミラ−を挾
みながら、固定ばねを鍔側からミラ−保持穴に圧入し、
固定ばねのガイド穴をミラ−保持穴の突起に嵌合させ
る。このように固定ばねをミラ−保持穴に圧入すると、
Ｕ字状の板ばねと鍔がわん曲し、その弾性力でミラ−を
強固に保持することができる。また、固定ばねのガイド
穴をミラ−保持穴の突起に嵌合させ、かつ固定ばねをＵ
字状の板ばねと鍔の弾性力によりミラ−保持穴に圧接し
ているから、衝撃等によりミラ−の長手方向の力が働い
ても固定ばねがミラ−保持穴から外れることを防ぎ、ミ
ラ−がキャリッジから脱落することを防ぐ。When the mirror is fixed to the mirror holding hole by using this fixing spring, the end of the mirror is inserted into the mirror holding hole and the mirror is fixed by the U-shaped leaf spring of the fixing spring. While holding-, press the fixed spring from the collar side into the mirror holding hole,
Fit the guide hole of the fixed spring to the protrusion of the mirror holding hole. When the fixed spring is pressed into the mirror holding hole in this way,
The U-shaped leaf spring and the flange are bent, and the elastic force can firmly hold the mirror. Further, the guide hole of the fixed spring is fitted to the protrusion of the mirror holding hole, and the fixed spring is U-shaped.
Since the elastic force of the V-shaped leaf spring and the collar makes pressure contact with the mirror holding hole, the fixed spring is prevented from coming off from the mirror holding hole even if the force in the longitudinal direction of the mirror acts due to impact or the like. Prevent the − from falling out of the carriage.
【００１３】また、上記固定ばねの鍔のないばね片に設
けたガイド穴に代えて、Ｕ字状の板ばねのＵ字溝の内側
に滑らかに突出した凹みを設け、凹みをミラ−保持穴の
突起と嵌合させることにより、ミラ−の端部に傷がつく
ことを防止できる。Further, in place of the guide hole provided in the flange-less spring piece of the fixed spring, a smoothly protruding recess is provided inside the U-shaped groove of the U-shaped leaf spring, and the recess is a mirror holding hole. It is possible to prevent the end portion of the mirror from being scratched by fitting it with the protrusion.
【００１４】さらに、固定ばねのＵ字状に形成された板
ばねの根元の両側からＵ字溝側に曲げた押え用の板ばね
を設けることにより、Ｕ字状に形成された板ばねと押え
用の板ばねでミラ−の端部を押えることができ、衝撃や
振動が生じたときに、ミラ−のあらゆる方向の移動量を
抑制することができる。Further, by providing a pressing leaf spring bent from both sides of the root of the U-shaped leaf spring of the fixed spring to the U-shaped groove side, the leaf spring formed in the U-shape and the pressing portion are provided. It is possible to press the end portion of the mirror with a leaf spring for use in the machine, and it is possible to suppress the movement amount of the mirror in all directions when a shock or vibration occurs.
【００１５】[0015]
【実施例】図１は画像読取装置の読取光学系の概要を示
す構成図である。図に示すように、読取光学系は第１キ
ャリッジ１ａと第２キャリッジ１ｂと結像レンズ２と光
電素子３とを有する。第１キャリッジ１ａにはコンタク
トガラス４に載置された原稿５を照明する光源６と、原
稿５からの反射光を反射する第１ミラ−７ａが保持さ
れ、第２キャリッジ１ｂには第１ミラ−７ａからの光の
光路を変える第２ミラ−７ｂ，第３ミラ−７ｃが保持さ
れている。この第１キャリッジ１ａと第２キャリッジ１
ｂを副走査方向に移動しながら、原稿５の反射光を第１
ミラ−７ａ，第２ミラ−７ｂ，第３ミラ−７ｃで反射
し、結像レンズ２で光電素子３に収束して、原稿５の画
像情報を読み取っている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the outline of a reading optical system of an image reading apparatus. As shown in the figure, the reading optical system has a first carriage 1a, a second carriage 1b, an imaging lens 2 and a photoelectric element 3. The first carriage 1a holds a light source 6 for illuminating the original 5 placed on the contact glass 4, and a first mirror 7a for reflecting the reflected light from the original 5, while the second carriage 1b holds the first mirror 7a. A second mirror-7b and a third mirror-7c that change the optical path of the light from -7a are held. The first carriage 1a and the second carriage 1
While moving b in the sub-scanning direction, the reflected light of the document 5
The image information of the original 5 is read by being reflected by the mirror 7a, the second mirror 7b, and the third mirror 7c, being converged by the imaging lens 2 to the photoelectric element 3.
【００１６】第１キャリッジ１ａには両側壁に第１ミラ
−７ａを保持するミラ−保持穴を有し、第２キャリッジ
１ｂの両側壁には、図２の斜視図に示すように、第２ミ
ラ−７ｂ，第３ミラ−７ｃを直交した方向に保持するミ
ラ−保持穴８を有する。ミラ−保持穴８は、図３の斜視
図に示すように、各ミラ−７の断面形状に応じた大きさ
の長方形に形成され、このミラ−保持穴８にミラ−７の
端部が固定ばね９で固定される。固定ばね９は、図３に
示すように、Ｕ字状の板ばね９１からなり、Ｕ字状に形
成された板ばね９１の両端部には外側に鋭角で曲げられ
た鍔９２ａ，９２ｂと、一方の鍔９２ａからＵ字状の溝
内に突出した押えばね９３を有する。この固定ばね９の
Ｕ字状に形成された溝の幅はミラ−７の厚さより大き
く、かつミラ−保持穴８の高さよりいくぶん小さく形成
されている。The first carriage 1a has mirror holding holes for holding the first mirror 7a on both side walls, and the second carriage 1b has two side walls for holding the second mirror 7a as shown in the perspective view of FIG. It has a mirror holding hole 8 for holding the mirror 7b and the third mirror 7c in a direction orthogonal to each other. As shown in the perspective view of FIG. 3, the mirror holding hole 8 is formed in a rectangular shape having a size corresponding to the sectional shape of each mirror 7, and the end of the mirror 7 is fixed to the mirror holding hole 8. It is fixed by the spring 9. As shown in FIG. 3, the fixed spring 9 is composed of a U-shaped leaf spring 91, and both ends of the U-shaped leaf spring 91 have flanges 92a and 92b bent outward at an acute angle. It has a pressing spring 93 protruding from one of the collars 92a into the U-shaped groove. The width of the U-shaped groove of the fixed spring 9 is larger than the thickness of the mirror 7 and somewhat smaller than the height of the mirror holding hole 8.
【００１７】そして、図４の断面図に示すように、固定
ばね９のＵ字状の溝内にミラ−７の端部を挿入し、押え
ばね９３とＵ字状の板ばね９１の一方の辺９１ｂでミラ
−７を挾み込んで固定ばね９をミラ−７の端部に固定す
る。このように押えばね９３をわん曲させ、その弾性力
により固定ばね９をミラ−７に固定するから、固定ばね
９をミラ−７に確実に固定することができる。また、Ｕ
字状の板ばね９１の押えばね９３が設けられた辺９１ａ
は押えばね９３の弾性力によりミラ−７と反対側にわん
曲する。この状態で固定ばね９を取り付けたミラ−７の
端部をミラ−保持穴８に挿入し、固定ばね９の両端の鍔
９２ａ、９２ｂの端部をキャリッジ１の内壁に当てる。
このように固定ばね９を取り付けたミラ−７の端部をミ
ラ−保持穴８に挿入すると、図５の断面図に示すよう
に、固定ばね９のＵ字状の板ばね９１の両辺９１ａ，９
１ｂがミラ−保持穴８の上下で押さえられ、Ｕ字状の板
ばねの弾性力で固定ばね９を確実にミラ−保持穴８に固
定することができる。また、固定ばね９をミラ−保持穴
８に固定したときに、押えばね９３がミラ−７の方に押
しつけられるから、ミラ−７の保持力を高めることがで
きる。さらに、固定ばね９のＵ字状の板ばね９１の両辺
９１ａ，９１ｂがミラ−保持穴８の上下で押さえられ、
両端の鍔９２ａ，９２ｂの端部がキャリッジ１の内壁に
当たっているから、衝撃等によりミラ−７に長手方向の
力Ｆが加えられても固定ばね９がキャリッジ１から外れ
ることを防ぐことができる。また、ミラ−７に長手方向
の力Ｆが加えられたときのミラ−７の長手方向の移動量
を鍔９２ａ、９２ｂの弾性で抑制することができ、ミラ
−７がキャリッジ１から脱落することを防ぐことができ
る。Then, as shown in the sectional view of FIG. 4, the end of the mirror 7 is inserted into the U-shaped groove of the fixed spring 9, and one of the pressing spring 93 and the U-shaped leaf spring 91 is inserted. The mirror 7 is sandwiched by the side 91b to fix the fixed spring 9 to the end of the mirror 7. In this manner, the pressing spring 93 is bent and the fixed spring 9 is fixed to the mirror 7 by its elastic force, so that the fixed spring 9 can be reliably fixed to the mirror 7. Also, U
Side 91a provided with a holding spring 93 of a leaf spring 91 in the shape of a letter
Is bent to the side opposite to the mirror 7 by the elastic force of the presser spring 93. In this state, the end of the mirror 7 to which the fixed spring 9 is attached is inserted into the mirror holding hole 8, and the ends of the collars 92a and 92b at both ends of the fixed spring 9 are applied to the inner wall of the carriage 1.
When the end portion of the mirror 7 having the fixed spring 9 attached thereto is inserted into the mirror holding hole 8, as shown in the cross-sectional view of FIG. 5, both sides 91a of the U-shaped leaf spring 91 of the fixed spring 9, 9
1b is pressed above and below the mirror holding hole 8, and the fixed spring 9 can be reliably fixed to the mirror holding hole 8 by the elastic force of the U-shaped leaf spring. Further, when the fixed spring 9 is fixed in the mirror holding hole 8, the holding spring 93 is pressed toward the mirror 7, so that the holding force of the mirror 7 can be increased. Further, both sides 91a and 91b of the U-shaped leaf spring 91 of the fixed spring 9 are pressed by the upper and lower sides of the mirror holding hole 8,
Since the ends of the collars 92a and 92b at both ends abut against the inner wall of the carriage 1, it is possible to prevent the fixed spring 9 from coming off the carriage 1 even if a longitudinal force F is applied to the mirror 7 due to an impact or the like. Further, the amount of movement of the mirror 7 in the longitudinal direction when a force F in the longitudinal direction is applied to the mirror 7 can be suppressed by the elasticity of the collars 92a and 92b, and the mirror 7 can fall off from the carriage 1. Can be prevented.
【００１８】上記のようにキャリッジ１のミラ−保持穴
８に固定ばね９を利用してミラ−７を保持するときに、
図６に示すように、固定ばね９のＵ字状の板ばね９１の
ばね片９１ｂと接触するミラ−保持穴８の内周面の長辺
に突起１０を設け、ばね片９１ｂに突起１０と嵌合する
溝９４を設けておくと、固定ばね９をミラ−保持穴８の
一定の位置に取り付けることができる。When the mirror 7 is held in the mirror holding hole 8 of the carriage 1 using the fixed spring 9 as described above,
As shown in FIG. 6, a protrusion 10 is provided on the long side of the inner peripheral surface of the mirror holding hole 8 that comes into contact with the spring piece 91b of the U-shaped plate spring 91 of the fixed spring 9, and the protrusion 10 is formed on the spring piece 91b. If the groove 94 to be fitted is provided, the fixed spring 9 can be attached to a fixed position of the mirror holding hole 8.
【００１９】なお、上記実施例はＵ字状に形成された板
ばねの両端に鍔９２ａ，９２ｂを有する固定ばね９を使
用してミラ−７をキャリッジ１に取付けた場合について
説明したが、図７の斜視図に示すようにＵ字状に形成さ
れた板ばね９１の一方の端部にだけ外側に鋭角で曲げた
鍔９２を有する固定ばね９ａを使用してミラ−７をキャ
リッジ１に取付けるようにしても良い。In the above embodiment, the case where the mirror 7 is attached to the carriage 1 using the fixed springs 9 having the flanges 92a and 92b at both ends of the U-shaped leaf spring has been described. As shown in the perspective view of FIG. 7, the mirror 7 is attached to the carriage 1 by using a fixed spring 9a having a flange 92 bent outward at an acute angle only at one end of a U-shaped leaf spring 91. You may do it.
【００２０】この場合は、図７の斜視図に示すように、
キャリッジ１のミラ−保持穴８の長辺の中央部にそれぞ
れ突起１０ａ，１０ｂを設けておく。そして固定ばね９
ａの鍔９２と、鍔９２のないばね片９１ｂにミラー保持
穴８の突起１０ａ，１０ｂとそれぞれ嵌合するガイド穴
９５を設けておく。In this case, as shown in the perspective view of FIG.
Protrusions 10a and 10b are provided at the central portions of the long sides of the mirror holding hole 8 of the carriage 1, respectively. And the fixed spring 9
The flange 92 of "a" and the spring piece 91b without the flange 92 are provided with guide holes 95 for fitting with the projections 10a, 10b of the mirror holding hole 8, respectively.
【００２１】この固定ばね９ａを使用してミラ−７をミ
ラ−保持穴８に固定するときは、図７に示すように、ミ
ラ−保持穴８にミラ−７の端部を挿入しておき、固定ば
ね９ａのＵ字状の板ばね９１でミラ−７を挾みながら、
固定ばね９ａを鍔９２側からミラ−保持穴８に圧入し、
固定ばね９ａのガイド穴９５をミラ−保持穴８の突起１
０ａ，１０ｂに嵌合させる。このように固定ばね９ａを
ミラ−保持穴８に圧入すると、Ｕ字状の板ばね９１と鍔
９２がわん曲し、その弾性力でミラ−７を強固に保持す
る。また、固定ばね９ａのガイド穴９５をミラ−保持穴
８の突起１０ａ，１０ｂに嵌合させ、かつ固定ばね９ａ
のＵ字状の板ばね９１と鍔９２の弾性力により鍔９２と
鍔９２のないばね片９１ｂがミラ−保持穴８に圧接して
いるから、衝撃等によりミラ−７の長手方向の力が働い
ても固定ばね９ａがミラ−保持穴８から外れることを防
ぐことができる。したがって衝撃等によりミラ−７がキ
ャリッジ１から脱落することを防ぐことができる。ま
た、固定ばね９ａをキャリッジ１の側壁の外側からミラ
−保持穴８に取り付けるから、ミラ−７の取付けや保守
を容易に行うことができる。When the mirror 7 is fixed in the mirror holding hole 8 by using the fixing spring 9a, the end of the mirror 7 is inserted into the mirror holding hole 8 as shown in FIG. While sandwiching the mirror 7 with the U-shaped leaf spring 91 of the fixed spring 9a,
Press the fixed spring 9a into the mirror holding hole 8 from the flange 92 side,
The guide hole 95 of the fixed spring 9a is inserted into the projection 1 of the mirror holding hole 8.
It is fitted to 0a and 10b. When the fixed spring 9a is press-fitted into the mirror holding hole 8 in this manner, the U-shaped plate spring 91 and the flange 92 are bent, and the elastic force holds the mirror 7 firmly. Further, the guide hole 95 of the fixed spring 9a is fitted into the protrusions 10a and 10b of the mirror holding hole 8, and the fixed spring 9a
Due to the elastic force of the U-shaped leaf spring 91 and the brim 92, the brim 92 and the spring piece 91b without the brim 92 are pressed against the mirror holding hole 8, so that the force in the longitudinal direction of the mirror 7 due to an impact or the like is generated. Even if it works, it is possible to prevent the fixed spring 9a from coming off from the mirror holding hole 8. Therefore, it is possible to prevent the mirror 7 from falling off the carriage 1 due to an impact or the like. Further, since the fixed spring 9a is attached to the mirror holding hole 8 from the outside of the side wall of the carriage 1, the mirror 7 can be easily attached and maintained.
【００２２】なお、上記実施例は固定ばね９ａの鍔９ａ
と鍔９ａのないばね片９１ｂにミラー保持穴８の突起１
０ａ，１０ｂと嵌合するガイド穴９５を設けた場合につ
いて説明したが、図８の断面図に示すように、ばね片９
１ｂにＵ字溝の内側に滑らかに突出した凹み９６を設
け、凹み９６を突起１０ｂと嵌合するようにしても良
い。このようにミラ−７と接触する面を滑らかにするこ
とにより、ミラ−７の端部に傷がつくことを防止でき
る。In the above embodiment, the collar 9a of the fixed spring 9a is used.
And the protrusion 1 of the mirror holding hole 8 on the spring piece 91b without the collar 9a.
Although the case where the guide hole 95 for fitting with 0a and 10b is provided has been described, as shown in the sectional view of FIG.
It is also possible to provide a recess 96 that smoothly protrudes inside the U-shaped groove in 1b and fit the recess 96 with the protrusion 10b. By smoothing the surface in contact with the mirror 7 in this manner, it is possible to prevent the end portion of the mirror 7 from being scratched.
【００２３】また、上記各実施例は固定ばね９，９ａと
してＵ字状の板ばね９１を使用した場合について説明し
たが、図９の斜視図に示すように、Ｕ字状に形成された
板ばね９１の根元の両側からＵ字溝側に曲げた押え部９
７を設け、Ｕ字状に形成された板ばね９１と押え部９７
でミラ−７の端部を押えるようにすると、衝撃や振動が
生じたときに、ミラ−７のあらゆる方向の移動量を抑制
することができ、キャリッジ１に対するミラ−７の位置
変動を防止することができる。Further, although the above-mentioned embodiments have described the case where the U-shaped leaf spring 91 is used as the fixed springs 9 and 9a, as shown in the perspective view of FIG. 9, the U-shaped leaf spring is used. Holding part 9 bent from both sides of the base of the spring 91 to the U-shaped groove side
7, a U-shaped leaf spring 91 and a pressing portion 97 are provided.
If the end of the mirror 7 is pressed by means of, the amount of movement of the mirror 7 in all directions can be suppressed when a shock or vibration occurs, and position fluctuation of the mirror 7 with respect to the carriage 1 is prevented. be able to.
【００２４】[0024]
【発明の効果】この発明は以上説明したように、ミラー
をキャリッジに保持するための固定バネに鍔を設けミラ
ーの長手方向の衝撃を吸収するようにしたから、ミラー
のキャリッジからの脱落またはミラーの破損を防止し、
ミラーのキャリッジへの保持の安定化を図ることができ
る。As described above, according to the present invention, the fixing spring for holding the mirror on the carriage is provided with the flange so as to absorb the shock in the longitudinal direction of the mirror. To prevent damage
It is possible to stabilize the holding of the mirror on the carriage.
【００２５】また、キャリッジのミラー保持穴の内周面
の長辺の中央部に突起を設け、固定ばねにキャリッジの
ミラー保持穴の突起に嵌まり込むガイド穴を設け、固定
ばねのＵ字状の板ばねでミラ−を挾みながら、固定ばね
を鍔側からミラ−保持穴に圧入し、固定ばねのガイド穴
をミラ−保持穴の突起に嵌合させてミラ−を保持するよ
うにしたから、ミラ−を強固に保持することができとと
もにミラ−がキャリッジから脱落することを防ぐことが
できる。また、固定ばねをキャリッジ外側からミラー保
持穴に圧入すれば良いから、組立て時またはメンテナン
ス時等のミラーの脱着を容易にすることができる。Further, a protrusion is provided at the center of the long side of the inner peripheral surface of the mirror holding hole of the carriage, and a guide hole that fits into the protrusion of the mirror holding hole of the carriage is provided in the fixed spring. While holding the mirror with the leaf spring of No. 2, the fixed spring was press-fitted into the mirror holding hole from the flange side, and the guide hole of the fixed spring was fitted into the protrusion of the mirror holding hole to hold the mirror. Therefore, it is possible to firmly hold the mirror and prevent the mirror from falling off the carriage. Further, since the fixing spring may be press-fitted into the mirror holding hole from the outside of the carriage, it is possible to easily attach and detach the mirror at the time of assembly or maintenance.
【００２６】また、固定ばねのＵ字状の板ばねに設けた
ガイド穴に代えて、Ｕ字状の板ばねのＵ字溝の内側に滑
らかに突出した凹みを設けることにより、ミラ−の端部
に傷がつくことを防止することできる。Further, instead of the guide hole provided in the U-shaped leaf spring of the fixed spring, a smoothly projecting recess is provided inside the U-shaped groove of the U-shaped leaf spring so that the end of the mirror is formed. It is possible to prevent the part from being scratched.
【００２７】さらに、固定ばねのＵ字状に形成された板
ばねの根元の両側からＵ字溝側に曲げた押え用の板ばね
を設け、Ｕ字状に形成された板ばねと押え用の板ばねで
ミラ−の端部を押えることにより、衝撃や振動が生じた
ときに、ミラ−のあらゆる方向の移動量を抑制すること
ができ、キャリッジに対するミラ−の位置変動を防止す
ることができる。Further, a leaf spring for pressing which is bent from both sides of the root of the leaf spring formed in the U-shape of the fixed spring to the U-shaped groove side is provided, and the leaf spring formed in the U-shape and the pressing spring are provided. By pressing the end portion of the mirror with the leaf spring, it is possible to suppress the movement amount of the mirror in all directions when a shock or vibration occurs, and it is possible to prevent the position variation of the mirror with respect to the carriage. .
【図１】この発明の読取光学系の概要を示す構成図であ
る。FIG. 1 is a configuration diagram showing an outline of a reading optical system of the present invention.
【図２】キャリッジの構成を示す斜視図である。FIG. 2 is a perspective view showing a configuration of a carriage.
【図３】この発明の実施例のミラ−保持部の構成を示す
斜視図である。FIG. 3 is a perspective view showing a configuration of a mirror holding portion of an embodiment of the present invention.
【図４】固定ばねをミラ−に取付けた状態を示す断面図
である。FIG. 4 is a sectional view showing a state in which a fixed spring is attached to a mirror.
【図５】ミラ−保持部を示す断面図である。FIG. 5 is a sectional view showing a mirror holding portion.
【図６】第２の実施例のミラ−保持部の構成を示す斜視
図である。FIG. 6 is a perspective view showing a configuration of a mirror holding portion of a second embodiment.
【図７】第３の実施例のミラ−保持部の構成を示す斜視
図である。FIG. 7 is a perspective view showing a configuration of a mirror holding portion of a third embodiment.
【図８】第４の実施例のミラ−保持部の構成を示す断面
図である。FIG. 8 is a sectional view showing a structure of a mirror holding portion of a fourth embodiment.
【図９】第４の実施例のミラ−保持部の構成を示す斜視
図である。FIG. 9 is a perspective view showing a structure of a mirror holding portion of a fourth embodiment.
【図１０】従来例の構成を示す斜視図である。FIG. 10 is a perspective view showing a configuration of a conventional example.
１ キャリッジ ７ ミラー ８ ミラー保持穴 ９ 固定ばね １０ 突起 ９１ Ｕ字状の板ばね ９２ 鍔 ９３ 押えばね ９５ ガイド穴 1 carriage 7 mirror 8 Mirror holding hole 9 Fixed spring 10 protrusions 91 U-shaped leaf spring 92 Tsuba 93 Presser spring 95 Guide hole
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−93422（ＪＰ，Ａ) 特開 平４−182634（ＪＰ，Ａ) 特開 平４−204910（ＪＰ，Ａ) 実開 平４−116815（ＪＰ，Ｕ) 実開 平１−128237（ＪＰ，Ｕ) 実開 昭62−125210（ＪＰ，Ｕ) 実開 昭62−99062（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H04N 1/024 - 1/207 G02B 7/00 G02B 7/18 - 7/24 G03B 27/50 - 27/56 G03B 27/66 - 27/70 G03G 13/04 - 13/056 G03G 15/00 107 G03G 15/04 - 15/056 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-93422 (JP, A) JP-A-4-182634 (JP, A) JP-A-4-204910 (JP, A) Actual Kaihei 4- 116815 (JP, U) Actual opening 1-128237 (JP, U) Actual opening Sho 62-125210 (JP, U) Actual opening Sho 62-99062 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) H04N 1/024-1/207 G02B 7/00 G02B 7/ 18-7/24 G03B 27/50-27/56 G03B 27/66-27/70 G03G 13/04-13/056 G03G 15/00 107 G03G 15/04-15/056
Claims (4)
れ、光源と複数のミラーを保持して副走査方向に往復移
動するキャリッジと、キャリッジのミラー保持穴にミラ
ーを固定する固定ばねを有し、 固定ばねはＵ字状の板ばねからなり、Ｕ字状に形成され
た両端部には外側に鋭角で曲げられた鍔と、一方の鍔か
らＵ字状の溝内に突出した押えばねを有し、該固定ばね
のＵ字状の溝内にミラ−の端部を挿入した状態でキャリ
ッジの両側壁の内側からミラ−保持穴に挿入してミラ−
をキャリッジに保持させることを特徴とする画像読取装
置。1. A carriage having a plurality of mirror holding holes on both side walls, a carriage for holding a light source and a plurality of mirrors to reciprocate in a sub-scanning direction, and a fixing spring for fixing the mirror to the mirror holding holes of the carriage. The fixed spring is composed of a U-shaped leaf spring, and a brim bent outward at an acute angle at both ends formed in a U-shape, and a holding spring protruding from one of the brims into the U-shaped groove. And inserting the mirror end into the mirror holding hole from the inside of both side walls of the carriage with the end of the mirror inserted into the U-shaped groove of the fixed spring.
An image reading apparatus, which holds a carriage on a carriage.
れ、光源と複数のミラーを保持して副走査方向に往復移
動するキャリッジと、キャリッジのミラー保持穴にミラ
ーを固定する固定ばねを有し、 キャリッジのミラー保持穴は内周面の長辺の中央部に突
出した突起を有し、固定ばねはＵ字状の板ばねからな
り、Ｕ字状に形成された一方の端部には外側に鋭角で曲
げられた鍔を有し、鍔と他方のばね片にキャリッジのミ
ラー保持穴の突起と嵌合するガイド穴を有し、該固定ば
ねをキャリッジの両側壁に外側から挿入し、固定ばねの
Ｕ字状の溝内でミラーの端部を保持することを特徴とす
る画像読取装置。2. A carriage provided with a plurality of mirror holding holes on both side walls, holding a light source and a plurality of mirrors to reciprocate in the sub-scanning direction, and a fixed spring for fixing the mirror in the mirror holding holes of the carriage. However, the mirror holding hole of the carriage has a protrusion protruding at the center of the long side of the inner peripheral surface, the fixed spring is a U-shaped leaf spring, and one end formed in the U-shape has It has a brim bent at an acute angle on the outside, and a guide hole that fits into the protrusion of the mirror holding hole of the carriage on the flange and the other spring piece, and insert the fixed spring into both side walls of the carriage from the outside, An image reading device, characterized in that an end of a mirror is held in a U-shaped groove of a fixed spring.
れ、光源と複数のミラーを保持して副走査方向に往復移
動するキャリッジと、キャリッジのミラー保持穴にミラ
ーを固定する固定ばねを有し、 キャリッジのミラー保持穴は内周面の長辺の中央部に突
出した突起を有し、固定ばねはＵ字状の板ばねからな
り、Ｕ字状に形成された一方の端部には外側に鋭角で曲
げられた鍔を有し、鍔にキャリッジのミラー保持穴の突
起と嵌合するガイド穴を有し、他方のばね片にキャリッ
ジのミラー保持穴の突起に嵌まり込む凹部を有し、該固
定ばねをキャリッジの両側壁に外側から挿入し、固定ば
ねのＵ字状の溝内でミラーの端部を保持することを特徴
とする画像読取装置。3. A carriage having a plurality of mirror holding holes formed on both side walls, holding a light source and a plurality of mirrors to reciprocate in the sub-scanning direction, and a fixed spring for fixing the mirror to the mirror holding holes of the carriage. However, the mirror holding hole of the carriage has a protrusion protruding at the center of the long side of the inner peripheral surface, the fixed spring is a U-shaped leaf spring, and one end formed in the U-shape has It has a flange that is bent at an acute angle on the outside, a guide hole that fits with the protrusion of the mirror holding hole of the carriage, and a recess that fits into the protrusion of the mirror holding hole of the carriage on the other spring piece. Then, the fixing spring is inserted into both side walls of the carriage from the outside, and the end portion of the mirror is held in the U-shaped groove of the fixing spring.
部の根元の両側から両端部に向かって突出した板ばねを
有する請求項１、２又は３記載の画像読取装置。4. The image reading apparatus according to claim 1, wherein the fixed spring includes a leaf spring protruding from both sides of the root of both ends formed in a U shape toward both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15925296A JP3429952B2 (en) | 1996-05-31 | 1996-05-31 | Image reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15925296A JP3429952B2 (en) | 1996-05-31 | 1996-05-31 | Image reading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09321941A JPH09321941A (en) | 1997-12-12 |
| JP3429952B2 true JP3429952B2 (en) | 2003-07-28 |
Family
ID=15689695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15925296A Expired - Fee Related JP3429952B2 (en) | 1996-05-31 | 1996-05-31 | Image reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3429952B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4619816B2 (en) * | 2005-02-21 | 2011-01-26 | ローム株式会社 | Optical communication module and manufacturing method thereof |
| JP4727685B2 (en) * | 2008-03-31 | 2011-07-20 | 能美防災株式会社 | Opening and closing structure of electrical equipment |
-
1996
- 1996-05-31 JP JP15925296A patent/JP3429952B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09321941A (en) | 1997-12-12 |
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