JPH0134183Y2

JPH0134183Y2 -

Info

Publication number: JPH0134183Y2
Application number: JP1981191091U
Authority: JP
Priority date: 1981-12-23
Filing date: 1981-12-23
Publication date: 1989-10-18
Also published as: JPS5896557U

Description

【考案の詳細な説明】考案の技術分野この考案はたとえば電子写真装置等において原
稿カバーにより各種の原稿を固定する原稿押え装
置の改良に関する。[Detailed Description of the Invention] Technical Field of the Invention This invention relates to an improvement of a document holding device for fixing various documents with a document cover in, for example, an electrophotographic device.

考案の技術的背景電子写真装置等において、原稿台上の原稿を固
定する原稿カバーとして近年原稿カバー自身が柔
軟性を保持しないハードタイプのものが多用され
て来ている。そしてこの様なハードタイプの原稿
カバーにおいては、立体物や書籍等の厚物原稿及
びシート状の薄物原稿のいずれも確実に固定出来
るものとして、従来第１図に示すようなものが用
いられている。Technical Background of the Invention In recent years, in electrophotographic devices and the like, hard type covers in which the original cover itself does not retain its flexibility have come into widespread use as original covers for fixing originals on the original table. Conventionally, hard type manuscript covers such as the one shown in Figure 1 have been used to securely secure both thick manuscripts such as three-dimensional objects and books, as well as thin manuscripts in the form of sheets. There is.

この装置では、内面に図示しないクツシヨン部
材等を有する原稿カバー１０を軸１１を中心に回
動させ、原稿カバー１０開放時には、スプリング
１２の弾性によりピン１３及びプレート１４を介
し、後端１６が取付座１７に当接する迄原稿カバ
ー１０を押し上げ、更に原稿の厚さに応じ、支柱
１８を上下にスライドさせ、取付座１７と共に原
稿カバー１０全体を上下するようになつている。 In this device, a document cover 10 having a cushion member (not shown) on the inner surface is rotated around a shaft 11, and when the document cover 10 is opened, the rear end 16 is attached via a pin 13 and a plate 14 by the elasticity of a spring 12. The original cover 10 is pushed up until it comes into contact with the seat 17, and the support 18 is then slid up and down depending on the thickness of the original, so that the entire original cover 10 is moved up and down together with the mounting seat 17.

背景技術の問題点しかしながらこの装置では開閉機構が複雑であ
りコストが高くなる一方、支柱１８を本体内でス
ムースにスライドさせるための軸受けを必要と
し、更にコストが高くなると共に軸受けを設置す
るスペースを必要とするという欠点がある。Problems with the Background Art However, in this device, the opening/closing mechanism is complicated and the cost is high, and a bearing is required to smoothly slide the column 18 within the main body, which further increases the cost and requires a space for installing the bearing. It has the disadvantage of being necessary.

考案の目的この考案は上記事情にもとづいてなされたもの
で、小型かつ比較的簡単な構成でありながら、原
稿の厚薄にかかわらず、原稿を確実に固定出来、
更にコストの低減を図ることができる原稿押え装
置を提供することを目的とする。Purpose of the invention This invention was made based on the above circumstances, and although it is small and has a relatively simple structure, it can securely fix the original regardless of its thickness.
Furthermore, it is an object of the present invention to provide a document holding device that can reduce costs.

考案の概要この考案は原稿カバーを、所定角度回動させる
二重蝶番装置を介し、本体に取着することによ
り、原稿カバーの開閉機構を小型かつ簡素化しコ
ストの低減を図ると共に原稿を確実に固定するよ
うにしたものである。Summary of the idea This idea attaches the document cover to the main body via a double hinge device that rotates the document cover at a predetermined angle, thereby simplifying the opening/closing mechanism of the document cover and reducing costs. It is designed to be fixed.

考案の実施例以下この考案の一実施例を第２図ないし第７図
を参照しながら説明する。本体２０の上面には原
稿台２０ａを覆うハードタイプの原稿カバー２１
が二重蝶番２２により開閉可能に設けられてい
る。この二重蝶番２２は折曲支点の一方である第
１の支点２３に軸着されると共にねじ２４により
本体２０に固定される第２の翼部２６及び、一端
が第１の支点２３に軸着され他端が折曲支点の他
方である第２の支点２７に軸着される回動可能の
第１の翼部２８並びに第２の支点２７に軸着され
ると共にねじ３０により原稿カバー２１の一端に
取着され原稿カバー２１と共に回動可能の第３の
翼部３１を有している。更に第２の翼部２６外側
には倒れ防止部材３２が突設される一方、第３の
翼部３１の両側は外方に折曲され、突起部３３を
形成している。そして原稿カバー２１の開放時
に、倒れ防止部材３２と第２の翼部２６の間に突
起部３３が挿入されるようになつており、原稿カ
バー２１の回動を規制する規制部材３４を形成し
ている。尚３６は原稿台、３７はシート状の薄物
原稿、３８は本状の厚物原稿である。Embodiment of the invention An embodiment of the invention will be described below with reference to FIGS. 2 to 7. A hard type document cover 21 is provided on the top surface of the main body 20 to cover the document table 20a.
is provided so that it can be opened and closed by a double hinge 22. This double hinge 22 has a second wing part 26 which is pivoted to a first fulcrum 23 which is one of the bending fulcrums and is fixed to the main body 20 by a screw 24, and one end of which is pivoted to the first fulcrum 23. A rotatable first wing portion 28 is attached to the pivot point and the other end is pivoted to a second fulcrum 27 which is the other bending fulcrum, and a document cover 21 is pivoted to the second fulcrum 27 and is attached to the document cover 21 by a screw 30. It has a third wing portion 31 attached to one end and rotatable together with the document cover 21. Furthermore, a fall prevention member 32 is provided protruding from the outside of the second wing section 26, while both sides of the third wing section 31 are bent outward to form a protrusion 33. When the document cover 21 is opened, a protrusion 33 is inserted between the fall prevention member 32 and the second wing portion 26, and forms a regulating member 34 that restricts the rotation of the document cover 21. ing. Note that 36 is an original plate, 37 is a sheet-like thin original, and 38 is a book-like thick original.

次に作用について述べる。先ずシート状の薄物
原稿３７の複写を行なう場合、オペレータは薄物
原稿３７を原稿台３６に載置し原稿カバー２１を
閉鎖するが、この閉鎖開始時、規制部材３４にあ
つては、突起部３３が、倒れ防止部材３２と第２
の翼部２６の間に挿入されている事から、第３の
翼部３１の回動を規制され第２の支点２７で回動
される事無く、第１の支点２３でのみ矢印ｗ方向
に回動され第５図点線で示す位置に達する。この
後突起部３３は倒れ防止部材３２から外れ、二重
蝶番２２は第２の支点２７でも回動可能となる
が、原稿カバー２１の自重及びオペレータによる
原稿カバー２１先端の支持力により第３の翼部３
１に生じる矢印ｘ方向のモーメントにより、二重
蝶番２２は第２の支点２７で折曲される事無く第
４図に示すように閉鎖され、次いで複写を開始す
る。更に複写終了後原稿カバー２１を開放し薄物
原稿３７を取り出すが、この時も第３の翼部３１
に矢印ｘ方向のモーメントが働いている事から、
二重蝶番２２は第１の支点２７でのみ回動され、
突起部３３が倒れ防止部材３２内に挿入され、第
５図実線で示すように突起部３３側面が倒れ防止
部材３２先端に当接され静止される。次に厚物原
稿３８の複写を行なう場合、薄物原稿３７の時と
同様にして原稿カバー２１は矢印ｗ方向に回動さ
れて行くがその途中、原稿カバー２１内面が厚物
原稿３８に当接されると、二重蝶番２２は原稿カ
バー２１と厚物原稿３８上面が密接されるよう第
３の翼部３１が第２の支点２７で矢印ｙ方向に回
動されると共に、第１の翼部２８が矢印ｗ方向と
反対方向に幾分戻される。そして厚物原稿３８の
厚さが最大許容量の場合、二重蝶番２２は第６図
に示すように閉鎖され、次いで複写を開始する事
となる。 Next, we will discuss the effect. First, when copying a sheet-like thin document 37, the operator places the thin document 37 on the document table 36 and closes the document cover 21. At the beginning of this closing, the protrusion 33 of the regulating member 34 However, the fall prevention member 32 and the second
Since the third wing portion 31 is inserted between the wing portions 26 of It is rotated and reaches the position shown by the dotted line in Figure 5. The rear protrusion 33 is detached from the fall prevention member 32, and the double hinge 22 becomes rotatable on the second fulcrum 27, but due to the own weight of the document cover 21 and the support force of the tip of the document cover 21 by the operator, the third hinge Wing part 3
1, the double hinge 22 is closed as shown in FIG. 4 without being bent at the second fulcrum 27, and then copying begins. Further, after copying is completed, the document cover 21 is opened and the thin document 37 is taken out.
Since a moment in the direction of arrow x is acting on
The double hinge 22 is rotated only at the first fulcrum 27,
The protrusion 33 is inserted into the fall prevention member 32, and the side surface of the protrusion 33 comes into contact with the tip of the fall prevention member 32, as shown by the solid line in FIG. 5, and is held still. Next, when copying a thick original 38, the original cover 21 is rotated in the direction of arrow w in the same manner as when copying the thin original 37, but in the middle of this, the inner surface of the original cover 21 comes into contact with the thick original 38. Then, the third wing part 31 of the double hinge 22 is rotated in the direction of the arrow y about the second fulcrum 27 so that the upper surface of the document cover 21 and the thick document 38 are brought into close contact with each other, and the third wing part 31 is rotated in the direction of the arrow y at the second fulcrum 27. The portion 28 is returned somewhat in the direction opposite to the direction of the arrow w. When the thickness of the thick document 38 is the maximum allowable thickness, the double hinge 22 is closed as shown in FIG. 6, and then copying begins.

このように構成すれば、原稿は薄物原稿及び厚
物原稿のいづれであつても、原稿カバー２１によ
り原稿台３６に確実かつ密接に固定され、画像ぶ
れや、外光の進入による画質の低下を防止出来
る。又、構造が小型かつ簡素化されコストの低減
を図れると共に、原稿カバー２１の開放角度が規
制され更に第３の翼部３１の回動が規制される事
から、原稿カバー２１の開閉の際の操作性も妨げ
られる事が無い。 With this configuration, whether the document is a thin document or a thick document, the document cover 21 securely and closely fixes the document to the document table 36, thereby preventing image blur and deterioration of image quality due to entry of external light. It can be prevented. In addition, the structure is compact and simplified, which reduces costs, and since the opening angle of the document cover 21 is restricted and the rotation of the third wing portion 31 is restricted, the opening and closing of the document cover 21 is easy. Operability is not hindered either.

尚この考案は上記実施例に限定されず種々設計
変更可能であり、例えば二重蝶番の各翼部の大き
さ等任意であるし、又、倒れ防止部材の構造も第
２の翼部と一体に形成する等任意である。更に原
稿カバーもハードタイプに限定されず柔軟性を有
するものであつても良い。 It should be noted that this invention is not limited to the above-mentioned embodiments, and can be modified in various ways. For example, the size of each wing of the double hinge can be made arbitrary, and the structure of the fall prevention member can also be integrated with the second wing. It is optional, such as forming it into a shape. Further, the document cover is not limited to a hard type, but may be a flexible type.

考案の効果以上説明したように、この考案によれば、薄物
原稿あるいは厚物原稿のいづれであつても、原稿
を原稿台に確実かつ密接に固定出来、複写中の原
稿ずれによる画像ぶれや、外光の進入を防止出
来、画質の向上を図る事が出来ると共に、原稿カ
バーの開放時、原稿カバーが本体後方に倒れた
り、更に原稿カバーの閉鎖開始時、二重蝶番が、
２つの支点で回動され、閉鎖操作が不安定にされ
るという事が無く、操作性も向上される。又、従
来に比し構造が小型簡素化され支柱及びその軸受
け等が不要となる事から、コストの低減スペース
の縮少が可能となる。Effects of the invention As explained above, according to this invention, whether the original is thin or thick, the original can be securely and closely fixed to the document table, and image blur caused by misalignment of the original during copying can be avoided. This prevents outside light from entering, improving image quality, and prevents the document cover from falling backwards when the document cover is opened, and also prevents the double hinge from falling when the document cover begins to close.
Since it is rotated on two supporting points, the closing operation will not become unstable and the operability will be improved. In addition, the structure is smaller and simpler than the conventional one, and supports and their bearings are no longer necessary, making it possible to reduce costs and space.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の装置を示す断面図、第２図ない
し第７図はこの考案の一実施例を示し第２図はそ
の原稿カバーの閉鎖時を示す概略側面図、第３図
はその原稿カバーの開放時を示す概略側面図、第
４図はその薄物原稿による原稿カバー閉鎖時を示
す一部省略断面図、第５図はその原稿カバー開放
時を示す一部省略断面図、第６図はその厚物原稿
による原稿カバー閉鎖時を示す一部省略断面図、
第７図はその二重蝶番及び規制部材を示す斜視図
である。２０……本体、２１……原稿カバー、２２……
二重蝶番、２３……第１の支点、２６……第２の
翼部、２７……第２の支点、２８……第１の翼
部、３１……第３の翼部、３２……倒れ防止部
材、３３……突起部、３７……薄物原稿、３８…
…厚物原稿。 Fig. 1 is a sectional view showing a conventional device, Figs. 2 to 7 show an embodiment of this invention, Fig. 2 is a schematic side view showing the document cover when closed, and Fig. 3 is a schematic side view of the document. FIG. 4 is a partially omitted cross-sectional view showing the document cover when it is closed with a thin document; FIG. 5 is a partially omitted cross-sectional view showing the document cover when it is open; FIG. 6 is a schematic side view showing the cover when it is opened; is a partially omitted cross-sectional view showing when the document cover is closed due to the thick document;
FIG. 7 is a perspective view showing the double hinge and the regulating member. 20...Main body, 21...Document cover, 22...
Double hinge, 23...first fulcrum, 26...second wing, 27...second fulcrum, 28...first wing, 31...third wing, 32... Fall prevention member, 33... protrusion, 37... thin original, 38...
...Thick manuscript.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

両側が第１の支点及び第２の支点に軸着される
第１の翼部及び前記第１の支点に軸着される第２
の翼部並びに前記第２の支点に軸着される第３の
翼部を有し、前記第２の翼部が前記本体の上方端
部に収着されると共に前記第３の翼部が前記原稿
カバーの開閉中心に取着される二重蝶番と、前記
第２の翼部外方に突設される倒れ防止部材及び前
記第３の翼部の外方に突設される突起部を有し、
前記原稿カバーの開放時前記突起部側面が前記倒
れ防止部材先端に当接され前記原稿カバーの開放
角度を規制し、前記原稿カバーの閉鎖開始時前記
突起部先端が前記倒れ防止部材の側面に当接され
前記原稿カバーの回動中心を規制する規制部材と
を有することを特徴とする原稿押え装置。 a first wing portion pivoted on both sides to a first fulcrum and a second fulcrum, and a second wing section pivoted to the first fulcrum;
and a third wing portion pivoted to the second fulcrum, the second wing portion being sorbed to the upper end portion of the main body, and the third wing portion being attached to the upper end portion of the main body. The document cover has a double hinge attached to the opening/closing center of the document cover, a fall prevention member protruding outward from the second wing part, and a projection part protruding outward from the third wing part. death,
When the document cover is opened, the side surface of the protrusion comes into contact with the tip of the fall prevention member to regulate the opening angle of the document cover, and when the document cover starts to close, the tip of the protrusion comes into contact with the side surface of the fall prevention member. A document holding device comprising: a regulating member that is brought into contact with the document cover and regulates a center of rotation of the document cover.