JPH01109024U - - Google Patents
Info
- Publication number
- JPH01109024U JPH01109024U JP457288U JP457288U JPH01109024U JP H01109024 U JPH01109024 U JP H01109024U JP 457288 U JP457288 U JP 457288U JP 457288 U JP457288 U JP 457288U JP H01109024 U JPH01109024 U JP H01109024U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- paper
- feed roller
- feed
- feeding device
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Controlling Sheets Or Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
第１図は、この考案に係る給紙装置の一実施例
を示す側面図、第２図は同上の斜視図、第３図は
同上の重送防止ローラの正面図、第４図乃至第７
図は同上の作動状態を段階的に示す概略図、第８
図は従来の給紙装置を示す概略図である。
１……ペーパ載置台、７……給紙ローラ、８…
…送りローラ、９……上部送り出しローラ、１６
……重送防止ローラ、１７……下部送り出しロー
ラ、ＰＨ１……高さ検出センサ、ＰＨ２……位置
検出センサ。
FIG. 1 is a side view showing an embodiment of the paper feeding device according to the invention, FIG. 2 is a perspective view of the same, FIG. 3 is a front view of the double feed prevention roller, and FIGS.
The figure is a schematic diagram showing step by step the operating state of the same as above.
The figure is a schematic diagram showing a conventional paper feeding device. 1...Paper mounting table, 7...Paper feed roller, 8...
...Feed roller, 9...Top feed roller, 16
...Double feed prevention roller, 17...Lower feed roller, PH1 ...Height detection sensor, PH2 ...Position detection sensor.
Claims (1)
ラを設け、この給紙ローラとの接触回転によつて
ペーパ載置台上から送り出されるペーパの移送路
に、送りローラおよび上部送り出しローラをペー
パ移送方向に順に設け、送りローラの下方には重
送防止ローラを配置すると共に上部送り出しロー
ラの下方に下部送り出しローラを対向させた給紙
装置において、前記給紙ローラ、上部送り出しロ
ーラおよび重送防止ローラを上下動可能に支持し
、前記ペーパ載置台の昇降路にはペーパ載置台上
の積層ペーパの上面が所定の高さに搬送されたか
どうかを検出する高さ検出センサを設け、上部送
り出しローラと下部送り出しローラの搬出側には
、両ローラ間を通過したペーパの先端位置を検出
する位置検出センサを配置し、上記高さ検出セン
サが積層ペーパの上面を検出したとき、給紙ロー
ラを下降させると共に、重送防止ローラおよび上
部送り出しローラを上昇させ、位置検出センサが
ペーパの先端位置を検出したとき、給紙ローラを
上昇させると共に、重送防止ローラおよび上部送
り出しローラを下降させるローラ昇降機構を設け
たことを特徴とする給紙装置。 (2) 前記給紙ローラ、送りローラおよび上部送
り出しローラを、ペーパ移送方向に対して略Ｖ字
形に配置し、その各ローラを、送りローラの回転
軸心を中心として回動自在に支持されたローラフ
レームで支持して給紙ローラおよび上部送り出し
ローラを上下動可能とした請求項(1)記載の給紙
装置。 (3) 前記重送防止ローラと下部送り出しローラ
をローラ支持板で支持し、このローラ支持板を上
記下部送り出しローラの回転軸心を中心に回動可
能に支持して重送防止ローラを上下動可能とした
請求項(1)記載の給紙装置。 (4) 前記ローラ昇降機構が、前記ローラフレー
ムおよびローラ支持板を回動させるリンク機構か
ら成り、上記ローラフレームおよびローラ支持板
の回動により給紙ローラ、上部送り出しローラお
よび重送防止ローラの上下動を連動させた請求項
(1)、(2)又は(3)記載の給紙装置。[Scope of Claim for Utility Model Registration] (1) A paper feed roller is provided above the paper table which can be raised and lowered, and the paper is sent out from above the paper table by the contact rotation with the paper feed roller. In a paper feeding device in which a feed roller and an upper feed roller are provided in order in the paper transport direction, a double feed prevention roller is arranged below the feed roller, and a lower feed roller is opposed below the upper feed roller, the paper feed roller , an upper feed roller and a double-feed prevention roller are supported vertically movably, and the hoistway of the paper loading table has a height for detecting whether the upper surface of the laminated paper on the paper loading table has been conveyed to a predetermined height. A detection sensor is provided, and a position detection sensor is placed on the delivery side of the upper and lower delivery rollers to detect the position of the leading edge of the paper that has passed between both rollers, and the height detection sensor detects the top surface of the laminated paper. When the paper feed roller is lowered, the double feed prevention roller and the upper feed roller are raised, and when the position detection sensor detects the leading edge position of the paper, the paper feed roller is raised, and the double feed prevention roller and the upper feed roller are raised. A paper feeding device characterized by being provided with a roller elevating mechanism for lowering a feed roller. (2) The paper feed roller, the feed roller, and the upper feed roller are arranged in a substantially V-shape with respect to the paper transport direction, and each roller is supported rotatably about the rotation axis of the feed roller. 2. The paper feeding device according to claim 1, wherein the paper feeding roller and the upper delivery roller are movable up and down by being supported by a roller frame. (3) The double feed prevention roller and the lower feed roller are supported by a roller support plate, and the roller support plate is rotatably supported around the rotation axis of the lower feed roller to vertically move the double feed prevention roller. The paper feeding device according to claim (1), which enables the paper feeding device. (4) The roller lifting mechanism consists of a link mechanism that rotates the roller frame and roller support plate, and the rotation of the roller frame and roller support plate raises and lowers the paper feed roller, upper feed roller, and double feed prevention roller. Claims that link motions
Paper feeding device described in (1), (2) or (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP457288U JPH07442Y2 (en) | 1988-01-18 | 1988-01-18 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP457288U JPH07442Y2 (en) | 1988-01-18 | 1988-01-18 | Paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01109024U true JPH01109024U (en) | 1989-07-24 |
| JPH07442Y2 JPH07442Y2 (en) | 1995-01-11 |
Family
ID=31207204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP457288U Expired - Lifetime JPH07442Y2 (en) | 1988-01-18 | 1988-01-18 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07442Y2 (en) |
-
1988
- 1988-01-18 JP JP457288U patent/JPH07442Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07442Y2 (en) | 1995-01-11 |
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