JPH0331126A - Locking mechanism for sheet feed cassette - Google Patents
Locking mechanism for sheet feed cassetteInfo
- Publication number
- JPH0331126A JPH0331126A JP16815889A JP16815889A JPH0331126A JP H0331126 A JPH0331126 A JP H0331126A JP 16815889 A JP16815889 A JP 16815889A JP 16815889 A JP16815889 A JP 16815889A JP H0331126 A JPH0331126 A JP H0331126A
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- feed cassette
- claw
- paper feed
- section
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims description 22
- 210000000078 claw Anatomy 0.000 abstract description 21
- 230000037431 insertion Effects 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 2
- 235000013446 pixi Nutrition 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は給紙カセットのロック機構に関し、特に端末機
器等に用いる給紙カセットのロック機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a locking mechanism for a paper feed cassette, and more particularly to a lock mechanism for a paper feed cassette used in terminal equipment and the like.
従来、この種の給紙カセットのロック機構は、爪によっ
て給紙カセットをくわえてロックするものや、位置決め
ピン等により、自重によってロックするもの等が一般に
知られている。Conventionally, locking mechanisms for this type of paper feed cassette are generally known, such as one in which the paper feed cassette is locked by gripping the paper feed cassette with a claw, and one in which the paper feed cassette is locked by its own weight using a positioning pin or the like.
第２図はかかる従来の一例を示す給紙カセットのロック
機構の断面図である。FIG. 2 is a sectional view of a locking mechanism of a paper feed cassette showing an example of such a conventional paper feed cassette.
第２図に示すように、従来のカセットロック機構は給紙
カセット１をカセットガイド部１に装着すると、ロック
用の爪６が給紙カセットの穴または凹部に係合してロッ
クされる。尚、５は用紙のピックローラである。As shown in FIG. 2, in the conventional cassette locking mechanism, when the paper feed cassette 1 is mounted on the cassette guide section 1, the locking claw 6 engages with a hole or recess of the paper feed cassette and is locked. Note that 5 is a paper pick roller.
上述した従来の給紙カセットのロック機構、特に爪によ
るロック機構ではその爪に圧力を与えるスプリングやそ
の解除機構等が必要な上、その部品点数の増大や、その
爪による給紙カセットの破損あるいは最近の“イージー
オペレーション化にも反するという欠点がある。The above-mentioned conventional paper feed cassette locking mechanism, especially the claw locking mechanism, requires a spring that applies pressure to the claw, a release mechanism, etc., and the number of parts increases, and the paper feed cassette may be damaged or damaged by the claw. It also has the drawback of going against the recent trend toward easy operation.
また、ピンによる位置決めロック機構では、給紙カセッ
トが装置本体内に内蔵されるタイプにおいては有効であ
る。しかしながら、給紙カセットの一部分が装置本体外
へ突出するタイプにおいては、給紙カセットのバランス
等により確実なロックが出来ないという欠点がある。Further, the positioning and locking mechanism using a pin is effective in a type in which the paper feed cassette is built into the main body of the apparatus. However, the type in which a portion of the paper feed cassette protrudes outside the main body of the apparatus has the disadvantage that reliable locking cannot be achieved due to the balance of the paper feed cassette.
本発明の目的は、かかる簡単な機構で給紙カセットの破
損防止および正確なロックを実現することのできる給紙
カセットのロック機構を提供することにある。An object of the present invention is to provide a locking mechanism for a paper feed cassette that can prevent damage to the paper feed cassette and achieve accurate locking with such a simple mechanism.
本発明の給紙カセットのロック機構は、給紙カセットを
給紙カセットガイド部に装着する給紙機構において、前
記給紙カセットにクサビ状の突起を設け且つ前記カセッ
トガイド部に前記突起に対応した溝を形成し、前記突起
および溝の嵌合により前記給紙カセットを給紙機構にロ
ックするように構成される。The paper feed cassette locking mechanism of the present invention includes a paper feed mechanism that attaches the paper feed cassette to a paper feed cassette guide part, in which the paper feed cassette is provided with a wedge-shaped protrusion and the cassette guide part is provided with a wedge-shaped protrusion corresponding to the protrusion. A groove is formed, and the sheet feeding cassette is locked to the sheet feeding mechanism by fitting the projection and the groove.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す給紙カセットのロック
機構の断面図である。FIG. 1 is a sectional view of a locking mechanism of a paper feed cassette showing an embodiment of the present invention.
第１図に示すように、本実施例は給紙カセット１にカセ
ットロック用のクサビ状の突起を形成する爪部２を有し
、またカセットガイド３には爪部２に対応した溝４部が
設けられている。今、カセットガイド３の厚み方向の寸
法Ｌ１よりも給紙カセット１の厚み方向の寸法Ｌ２をわ
ずかに小さく設定し、その分だけ爪部１を突出させる。As shown in FIG. 1, in this embodiment, the paper feed cassette 1 has a claw part 2 that forms a wedge-shaped protrusion for locking the cassette, and the cassette guide 3 has four grooves corresponding to the claw part 2. is provided. Now, the dimension L2 in the thickness direction of the paper feed cassette 1 is set to be slightly smaller than the dimension L1 in the thickness direction of the cassette guide 3, and the claw portion 1 is made to protrude by that amount.
かかる給紙カセット１をカセットガイド３に沿って挿入
した時、爪部２と溝部４とが一致した所で給紙カセット
１はカセットガイド３にロックされる。When the paper feed cassette 1 is inserted along the cassette guide 3, the paper feed cassette 1 is locked to the cassette guide 3 when the claw portion 2 and the groove portion 4 are aligned.
この給紙カセット１の重心はロック部よりも後方に設定
しであるので、爪部２と溝部４とに嵌合する方向に力を
加えれば、給紙カセット１が脱落しにくく確実にロック
される。更に、ロック部の爪２と溝４をカセットガイド
３の入口付近に設ければ、爪２０部分の寸法公差によっ
て起こり得るしまりばめ的な状態を最小限にすることが
できる。The center of gravity of the paper feed cassette 1 is set behind the lock part, so if force is applied in the direction of engagement between the claw part 2 and the groove part 4, the paper feed cassette 1 will be securely locked so that it will not fall off. Ru. Further, by providing the claw 2 and the groove 4 of the lock portion near the entrance of the cassette guide 3, it is possible to minimize the interference-fitting condition that may occur due to the dimensional tolerance of the claw 20 portion.
以上説明した様に、本発明の給紙カセットのロック機構
は、給紙カセットに爪を設け且つカセットガイド部にそ
の爪に対応した溝を設けることにより、簡単な構成でカ
セット挿入の不確かさによる用紙斜行、ジャム、ピック
シス等の障害を防止するとともに挿入感を失なわずにカ
セットのロックを正確に実現出来るという効果がある。As explained above, the paper feed cassette locking mechanism of the present invention has a simple structure and can prevent the uncertainty of cassette insertion by providing a claw in the paper feed cassette and a groove corresponding to the claw in the cassette guide section. This has the effect of preventing problems such as paper skew, jamming, and pixis, as well as being able to accurately lock the cassette without losing the feeling of insertion.
第１図は本発明の一実施例を示す給紙カセットのロック
機構の断面図、第２図は従来の一例を示す給紙カセット
のロック機構の断面図である。
１・・・・・・給紙カセット、２・・・・・・爪部、３
・・・・・・カセットガイド部、４・・・・・・ガイド
の溝部、５・・・・・・ピックローラ。FIG. 1 is a cross-sectional view of a locking mechanism for a paper feed cassette showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a locking mechanism for a paper feed cassette showing a conventional example. 1...Paper cassette, 2...Claw section, 3
...Cassette guide part, 4...Guide groove, 5...Pick roller.
Claims (1)
構において、前記給紙カセットにクサビ状の突起を設け
且つ前記カセットガイド部に前記突起に対応した溝を形
成し、前記突起および溝の嵌合により前記給紙カセット
を給紙機構にロックすることを特徴とする給紙カセット
のロック機構。In a paper feeding mechanism that attaches a paper feeding cassette to a paper feeding cassette guide part, the paper feeding cassette is provided with a wedge-shaped protrusion, and the cassette guide part is formed with a groove corresponding to the protrusion, and the protrusion and the groove are fitted. A locking mechanism for a paper feed cassette, wherein the paper feed cassette is locked to a paper feed mechanism when the paper feed cassette is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16815889A JPH0331126A (en) | 1989-06-28 | 1989-06-28 | Locking mechanism for sheet feed cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16815889A JPH0331126A (en) | 1989-06-28 | 1989-06-28 | Locking mechanism for sheet feed cassette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0331126A true JPH0331126A (en) | 1991-02-08 |
Family
ID=15862888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16815889A Pending JPH0331126A (en) | 1989-06-28 | 1989-06-28 | Locking mechanism for sheet feed cassette |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6793335B2 (en) | 2000-02-03 | 2004-09-21 | Canon Kabushiki Kaisha | Inks-and-printing-media-integral-type pack, printing liquid and sheets container, sheet supplying device, and printing apparatus comprising the same |
-
1989
- 1989-06-28 JP JP16815889A patent/JPH0331126A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6793335B2 (en) | 2000-02-03 | 2004-09-21 | Canon Kabushiki Kaisha | Inks-and-printing-media-integral-type pack, printing liquid and sheets container, sheet supplying device, and printing apparatus comprising the same |
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