JP3094347B2 - Image reading device - Google Patents
Image reading deviceInfo
- Publication number
- JP3094347B2 JP3094347B2 JP03310836A JP31083691A JP3094347B2 JP 3094347 B2 JP3094347 B2 JP 3094347B2 JP 03310836 A JP03310836 A JP 03310836A JP 31083691 A JP31083691 A JP 31083691A JP 3094347 B2 JP3094347 B2 JP 3094347B2
- Authority
- JP
- Japan
- Prior art keywords
- contact glass
- holding
- document
- image reading
- holding substrate
- 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 - Lifetime
Links
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、原稿から光学的に原稿
情報を読み取るファクシミリ装置，スキャナ，複写機等
の画像読取装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus such as a facsimile apparatus, a scanner, and a copying machine for optically reading document information from a document.
【０００２】[0002]
【従来の技術】図３は従来のファクシミリ装置の概略構
成図であり、装置本体１内は大きく情報読取部２と印字
部３とに分かれており、情報読取部２には、一対の原稿
送りローラ４と、この原稿送りローラ４間に設置された
透明体であるコンタクトガラス５と、このコンタクトガ
ラス５上を通る原稿を照明する光源６と、原稿からの反
射光を反射ミラー７，集光レンズ８を介して受光するＣ
ＣＤ(光電変換素子)９等が装備され、また印字部３に
は、端部がロール状になっている感熱記録紙10と、プラ
テンローラ11と、このプラテンローラ11に対向設置され
たサーマルヘッド12と、カッタ13と、排紙ローラ14等が
装備されている。2. Description of the Related Art FIG. 3 is a schematic structural view of a conventional facsimile apparatus. The inside of the apparatus main body 1 is largely divided into an information reading section 2 and a printing section 3. A roller 4, a contact glass 5 which is a transparent member provided between the document feed rollers 4, a light source 6 for illuminating a document passing over the contact glass 5, a reflection mirror 7 for condensing light reflected from the document. C that receives light through lens 8
A printing section 3 is provided with a CD (photoelectric conversion element) 9 and the like. The printing section 3 is provided with a thermosensitive recording paper 10 having a roll-shaped end, a platen roller 11, and a thermal head installed opposite to the platen roller 11. 12, a cutter 13, a paper discharge roller 14, and the like are provided.
【０００３】原稿情報読取時には、原稿は、原稿送りロ
ーラ４によって左方へ搬送されながら、原稿読取部であ
るコンタクトガラス５において光源６により光照射を受
ける。原稿からの反射光Ｂは反射ミラー７を経て集光レ
ンズ８によってＣＣＤ９の受光面に集光される。このＣ
ＣＤ９によって光電変換されて画像信号が出力される。At the time of reading the document information, the document is irradiated with light from a light source 6 on a contact glass 5 serving as a document reading unit while being conveyed leftward by a document feed roller 4. The reflected light B from the document passes through a reflection mirror 7 and is condensed on a light receiving surface of a CCD 9 by a condenser lens 8. This C
The image is photoelectrically converted by the CD 9 and an image signal is output.
【０００４】印字時には、感熱記録紙10は、プラテンロ
ーラ11により左方へ搬送されながら、送信された画像信
号に基づいてサーマルヘッド12によって印字され、印字
終了後にカッタ13で切断されて、排紙ローラ14によって
外部へ排出される。At the time of printing, the thermal recording paper 10 is printed by the thermal head 12 based on the transmitted image signal while being conveyed to the left by the platen roller 11, and is cut by the cutter 13 after printing, and is discharged. It is discharged to the outside by the roller 14.
【０００５】上記のファクシミリ装置において、コンタ
クトガラス５は、透明体であって、原稿読取部で原稿が
装置本体１内へ原稿が入り込まず、しかも装置本１内へ
の塵埃等が侵入しないようにして、原稿への光照射を可
能にするために設置されている。In the facsimile apparatus described above, the contact glass 5 is made of a transparent material so that the original does not enter the apparatus main body 1 at the original reading section and that dust and the like do not enter the apparatus main body 1. It is installed to enable light irradiation on the original.
【０００６】図４は従来のコンタクトガラス固定構造の
一例を示す分解斜視図であり、コンタクトガラス５は、
装置本体１の保持基板15に形成された透孔16における受
部15a上に載置され、さらに保持基板15に一端をネジ17
で固定された金属製の押え板18の他端部により前記受部
15aに弾接されて保持されている。FIG. 4 is an exploded perspective view showing an example of a conventional contact glass fixing structure.
It is placed on the receiving portion 15a in the through hole 16 formed in the holding substrate 15 of the apparatus body 1, and one end of the holding substrate 15 is
The other end of the metal holding plate 18 fixed at
It is held in contact with 15a.
【０００７】[0007]
【発明が解決しようとする課題】しかし上記の従来のコ
ンタクトガラス固定構造では、コンタクトガラス５を受
部15a上に置き、押え板18をコンタクトガラス５と保持
基板15の所定位置にセットした後に、押え板18をネジ止
めする作業が必要となり、組付け，取外しに時間がかか
り、またコンタクトガラス５を外して行う、コンタクト
ガラス５やコンタクトガラス５下方の部材に対する清掃
にも同様に時間がかかることになる。さらにネジ17の取
扱いにも注意が必要である等の問題があった。However, in the conventional contact glass fixing structure described above, the contact glass 5 is placed on the receiving portion 15a, and after the holding plate 18 is set at a predetermined position between the contact glass 5 and the holding substrate 15, The work of screwing down the holding plate 18 is required, so that it takes time to assemble and remove, and also it takes time to remove the contact glass 5 and clean the contact glass 5 and the members below the contact glass 5 similarly. become. In addition, there is a problem that the handling of the screw 17 requires attention.
【０００８】本発明の目的は、コンタクトガラスを容易
かつ確実に所定位置に対して取付け，取外すことができ
る画像読取装置を提供できる。An object of the present invention is to provide an image reading apparatus capable of easily and reliably attaching and detaching a contact glass to and from a predetermined position.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
め、本発明は、原稿から光学的に原稿情報を読み取る原
稿読取部分にコンタクトガラスを設置してなる画像読取
装置において、前記コンタクトガラスとこのコンタクト
ガラスを受ける保持基板との側部に弾接して、コンタク
トガラスと保持基板とを挾持する一対の弾性足体を有す
る支持部材を備えたことを特徴とする。In order to achieve the above object, the present invention provides an image reading apparatus having a contact glass at a document reading portion for optically reading document information from a document. A support member having a pair of elastic feet for holding the contact glass and the holding substrate in elastic contact with a side portion of the holding substrate for receiving the contact glass is provided.
【００１０】また前記一対の弾性足体間に、前記コンタ
クトガラスと保持基板とを圧接させる弓状突出部を設け
たことを特徴とする。[0010] Further, an arcuate projection for pressing the contact glass and the holding substrate is provided between the pair of elastic feet.
【００１１】さらに前記支持部材を、前記弾性足体の一
端を作動部とし、他端が前記弓状突出部の設置部分を中
心に回動するように略Ｈ形状にしたことを特徴とする。Further, the support member has a substantially H-shape such that one end of the elastic foot is used as an operating portion and the other end is rotated about the installation portion of the bow-shaped protrusion.
【００１２】[0012]
【作用】上記の手段によれば、支持部材の弾性足体によ
ってコンタクトガラスと保持基板との側部を弾性的に挾
持することによって、保持基板にコンタクトガラスが固
定される。According to the above means, the contact glass is fixed to the holding substrate by elastically holding the side portions of the contact glass and the holding substrate by the elastic foot of the supporting member.
【００１３】また弾性足体間の弓状突出部によってコン
タクトガラスと保持基板とが圧接されるため、コンタク
トガラスのがたつき、振動を抑制できる。Further, since the contact glass and the holding substrate are pressed against each other by the arcuate projections between the elastic feet, the contact glass is rattled and vibration can be suppressed.
【００１４】さらに支持部材を略Ｈ形状にして、弾性足
部の一端の作動部によって、コンタクトガラスと保持基
板とを挾持する弾性足部の他端を開閉させることがで
き、弾性足部によるコンタクトガラスと保持基板との挾
持，挾持開放が容易にできる。Further, the supporting member is made substantially H-shaped, and the other end of the elastic foot for holding the contact glass and the holding substrate can be opened and closed by the operating portion at one end of the elastic foot. The holding and opening of the glass and the holding substrate can be easily performed.
【００１５】[0015]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。尚、図３，図４に基づいて説明した部材と対応す
る部材には同一符号を示して詳しい説明を省略する。Embodiments of the present invention will be described below with reference to the drawings. Members corresponding to those described with reference to FIGS. 3 and 4 are denoted by the same reference numerals, and detailed description is omitted.
【００１６】図１は本発明の一実施例における要部の断
面図であり、図３に基づいて説明したファクシミリ装置
のコンタクトガラス５は、保持基板15に形成された透孔
16における受部15a上に載置されており、また受部15a近
傍の保持基板15には一対の挿入孔20が形成されている。
21は合成樹脂からなる支持部材であって、上部に作動部
である指掛部22aが設けられ、かつ下部に爪部22bが設け
られた一対の弾性足体22と、この弾性足部22間に架設さ
れた弓状突出部23とからなっている。FIG. 1 is a sectional view of a main part of an embodiment of the present invention. The contact glass 5 of the facsimile machine described with reference to FIG.
A pair of insertion holes 20 are mounted on the receiving portion 15a of the holding member 16 and are formed in the holding substrate 15 near the receiving portion 15a.
Reference numeral 21 denotes a support member made of a synthetic resin, in which a pair of elastic feet 22 provided with a finger hook 22a serving as an operation part at an upper part and a claw part 22b at a lower part, and between the elastic feet 22. And an arcuate projection 23 provided on the base.
【００１７】前記支持部材21は、指掛部22aを図２に示
したように内方へ押圧することで、爪部22bが弓状突出
部23の弾性足体22における設置部23aを中心にして外方
へ回動することで拡がる。この拡がった状態で支持部材
21の爪部22bを、受部15a上に載置されたコンタクトガラ
ス５上から挿入孔20にそれぞれ挿入し、指掛部22aへの
内方への押圧を解放する。すると図１に示したように、
爪部22bがコンタクトガラス５と保持基板15の受部15aの
側部に弾接し、両者を挾持することになる。The support member 21 presses the finger hook 22a inward as shown in FIG. 2 so that the claw 22b is centered on the installation portion 23a of the elastic foot 22 of the arcuate projection 23. It expands by turning outward. In this expanded state, the support member
The claw portions 22b of 21 are inserted into the insertion holes 20 from above the contact glass 5 placed on the receiving portions 15a, respectively, and the inward pressure on the finger hook portions 22a is released. Then, as shown in FIG.
The claw portion 22b elastically contacts the contact glass 5 and the side portion of the receiving portion 15a of the holding substrate 15, and sandwiches both.
【００１８】ここで支持部材21の弓状突出部23の最も突
出した部分から爪部22bの内側までの距離Ｌを、コンタ
クトガラス５の厚さＬ1と受部15aの厚さＬ2との合計よ
り小さくしておく(Ｌ＜Ｌ1＋Ｌ2)。このようにしたため
コンタクトガラス５と受部15aとは弓状突出部23による
押圧力を受けて、互いにがたつくことなく当接すること
になり、支持部材21による保持基板15に対するコンタク
トガラス５の保持をより確実にすることができる。Here, the distance L from the most protruding portion of the bow-shaped protruding portion 23 of the support member 21 to the inside of the claw portion 22b is determined by the thickness L 1 of the contact glass 5 and the thickness L 2 of the receiving portion 15a. It should be smaller than the sum (L <L 1 + L 2 ). As a result, the contact glass 5 and the receiving portion 15a receive the pressing force of the arcuate projection 23 and come into contact with each other without rattling, so that the support member 21 can hold the contact glass 5 with respect to the holding substrate 15 more. Can be assured.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によれば、
コンタクトガラスが、保持基板に対して弾性足体によっ
て弾性的に挾持されて、所定位置に保持されるので、コ
ンタクトガラスのセットが短時間で容易にでき、また弓
状突出部によってコンタクトガラスと保持基板とが圧接
されてコンタクトガラスのがたつき、振動が抑制されて
るため、コンタクトガラスの保持を確実なものにでき、
さらに支持部材を略Ｈ形状にして、一端の作動部によっ
て他端を開閉させることができるので、弾性足体による
コンタクトガラスと保持基板との挾持，挾持開放が容易
にできるようになるため、コンタクトガラスを容易かつ
確実に所定位置に対して取付け，取外すことができる画
像読取装置を提供できる。As described above, according to the present invention,
Since the contact glass is elastically held by the elastic foot with respect to the holding substrate and held at a predetermined position, the setting of the contact glass can be easily performed in a short time, and the contact glass is held with the contact glass by the bow-shaped protrusion. Since the contact glass is pressed against the substrate and the vibration of the contact glass is suppressed, the holding of the contact glass can be ensured,
Further, since the supporting member is made substantially H-shaped, and the other end can be opened and closed by the operating portion at one end, the holding and the holding glass can be easily held and released between the contact glass and the holding substrate by the elastic foot. It is possible to provide an image reading apparatus that can easily and surely attach and detach glass to a predetermined position.
【図１】本発明の画像形成装置の一実施例における要部
の断面図である。FIG. 1 is a sectional view of a main part in an embodiment of an image forming apparatus of the present invention.
【図２】図１の支持部材の動作の説明図である。FIG. 2 is an explanatory diagram of an operation of the support member of FIG.
【図３】従来のファクシミリ装置の概略構成図である。FIG. 3 is a schematic configuration diagram of a conventional facsimile machine.
【図４】従来のコンタクトガラス固定構造の一例を示す
分解斜視図である。FIG. 4 is an exploded perspective view showing an example of a conventional contact glass fixing structure.
５…コンタクトガラス、 15…保持基板、 15a…受
部、 16…透孔、 21…支持部材、 22…弾性足部、
22a…指掛部(作動部)、 22b…爪部、 23…弓状突出
部。5 contact glass, 15 holding substrate, 15a receiving part, 16 through hole, 21 support member, 22 elastic foot,
22a: finger hook (operating portion), 22b: claw portion, 23: bow-shaped protrusion.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G03B 27/58 - 27/64 H04N 1/04 - 1/207 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) G03B 27/58-27/64 H04N 1/04-1/207
Claims (3)
稿読取部分にコンタクトガラスを設置してなる画像読取
装置において、前記コンタクトガラスとこのコンタクト
ガラスを受ける保持基板との側部に弾接して、コンタク
トガラスと保持基板とを挾持する一対の弾性足体を有す
る支持部材を備えたことを特徴とする画像読取装置。1. An image reading apparatus comprising a document reading portion for reading document information optically from a document, wherein a contact glass is provided at a document reading portion, the contact glass being elastically in contact with a side portion of the contact glass and a holding substrate receiving the contact glass. An image reading apparatus comprising: a support member having a pair of elastic feet for holding a contact glass and a holding substrate.
トガラスと保持基板とを圧接させる弓状突出部を設けた
ことを特徴とする請求項１の画像読取装置。2. The image reading apparatus according to claim 1, wherein an arcuate projection is provided between said pair of elastic feet to press said contact glass against said holding substrate.
作動部とし、他端が前記弓状突出部の設置部分を中心に
回動するように略Ｈ形状にしたことを特徴とする請求項
２の画像読取装置。3. The device according to claim 2, wherein the support member has a substantially H-shape such that one end of the elastic foot is used as an actuating portion, and the other end is pivoted about an installation portion of the bow-shaped protrusion. The image reading device according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03310836A JP3094347B2 (en) | 1991-11-26 | 1991-11-26 | Image reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03310836A JP3094347B2 (en) | 1991-11-26 | 1991-11-26 | Image reading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05142674A JPH05142674A (en) | 1993-06-11 |
| JP3094347B2 true JP3094347B2 (en) | 2000-10-03 |
Family
ID=18009979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03310836A Expired - Lifetime JP3094347B2 (en) | 1991-11-26 | 1991-11-26 | Image reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3094347B2 (en) |
-
1991
- 1991-11-26 JP JP03310836A patent/JP3094347B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05142674A (en) | 1993-06-11 |
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