JP2000086004A - Paper feeding roller - Google Patents
Paper feeding rollerInfo
- Publication number
- JP2000086004A JP2000086004A JP10252084A JP25208498A JP2000086004A JP 2000086004 A JP2000086004 A JP 2000086004A JP 10252084 A JP10252084 A JP 10252084A JP 25208498 A JP25208498 A JP 25208498A JP 2000086004 A JP2000086004 A JP 2000086004A
- Authority
- JP
- Japan
- Prior art keywords
- paper feed
- feed unit
- paper
- axial direction
- feed roller
- 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
- 229920005749 polyurethane resin Polymers 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000037303 wrinkles Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、紙送りロ−ラ及び
紙送り装置に関する。The present invention relates to a paper feed roller and a paper feed device.
【０００２】[0002]
【従来の技術】紙送りロ−ラは、プリンタ、ファックス
等のＯＡ機器に使用され、用紙を送り出す機能を有して
いる。これらのＯＡ機器において、給紙及び排紙の際に
発生する用紙の皺や捩れは、字のにじみ、色のぼやけ等
の原因になる。このため、紙送りロ−ラにおいては、用
紙の皺、捩れ等の発生を確実に阻止しなければならな
い。2. Description of the Related Art A paper feed roller is used for OA equipment such as a printer and a facsimile, and has a function of feeding paper. In these OA devices, wrinkles and twists of the paper that occur during paper feeding and paper discharging cause blurring of characters, blurring of colors, and the like. For this reason, in the paper feed roller, it is necessary to reliably prevent wrinkles, twists, and the like of the paper.
【０００３】このような目的に対応することを狙った紙
送りロ−ラとしては、クラウン・ロ−ラと称されるもの
が、既に知られている。クラウン・ロ−ラ型の紙送りロ
−ラは、回転軸体と、紙送り部材とを含む。紙送り部材
は、長さ方向の中間部における回転半径が、長さ方向の
両端部における回転半径より大きな樽形であって、回転
軸体の周囲に、軸方向の全長に亘って備えられている。As a paper feed roller aiming at such a purpose, a roller referred to as a crown roller is already known. A crown roller type paper feed roller includes a rotating shaft and a paper feed member. The paper feed member has a barrel shape in which the radius of rotation at the intermediate portion in the length direction is larger than the radius of rotation at both ends in the length direction, and is provided around the rotary shaft body over the entire length in the axial direction. I have.
【０００４】しかし、実際にクラウン・ロ−ラをＯＡ機
器に使用する際は、紙送り部材が用紙に密着するよう
に、紙送りロ−ラに対して大きな圧力が掛けられる。し
たがって、紙送り部材の中間部が潰れてしまい、クラウ
ン・ロ−ラが有する用紙の蛇行防止機能を十分に発揮で
きない。このため、紙送り方向に、狂いが生じるおそれ
があった。However, when the crown roller is actually used in OA equipment, a large pressure is applied to the paper feed roller so that the paper feed member is in close contact with the paper. Therefore, the intermediate portion of the paper feeding member is crushed, and the function of preventing the paper from meandering, which the crown roller has, cannot be sufficiently exhibited. For this reason, there is a possibility that a deviation may occur in the paper feeding direction.
【０００５】しかも、用紙は、幅方向の全長に亘って、
紙送りロ−ラによって常に抑えられる。このため、一
旦、紙送り方向に、狂いが生じた場合、送り方向を修正
することは不可能であり、用紙は、本来の紙送り方向か
ら大きく逸脱してしまう。更に、一旦、用紙に皺、捩れ
等が発生した場合、皺を延ばし、捩れを戻すことは不可
能である。In addition, the paper covers the entire length in the width direction.
It is always suppressed by the paper feed roller. Therefore, once a deviation occurs in the paper feed direction, it is impossible to correct the feed direction, and the paper greatly deviates from the original paper feed direction. Furthermore, once wrinkles or twists occur on the paper, it is impossible to extend the wrinkles and return the twists.
【０００６】[0006]
【発明が解決しようとする課題】本発明の課題は、円
滑、かつ、迅速な紙送り動作を実行し得る紙送りロ−ラ
及び紙送り装置を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a paper feed roller and a paper feed device capable of executing a smooth and quick paper feed operation.
【０００７】本発明のもう一つの課題は、用紙に発生し
た皺や捩れを延ばす動作を実行し得る紙送りロ−ラ及び
紙送り装置を提供することである。It is another object of the present invention to provide a paper feed roller and a paper feed device capable of performing an operation of extending wrinkles and twists generated on a sheet.
【０００８】[0008]
【課題を解決するための手段】上述した課題を解決する
ため、本発明に係る紙送りロ−ラは、第１の紙送り部
と、第２の紙送り部と、第３の紙送り部とを含む。In order to solve the above-mentioned problems, a paper feed roller according to the present invention comprises a first paper feed unit, a second paper feed unit, and a third paper feed unit. And
【０００９】前記第１の紙送り部は、ロ−ラ状であっ
て、軸方向の中間部に備えられる。[0009] The first paper feed section is roller-shaped and provided at an intermediate portion in the axial direction.
【００１０】前記第２の紙送り部は、前記軸方向の前記
中間部から前記軸方向の一端部に向かって螺旋状に備え
られる。[0010] The second paper feed portion is provided spirally from the intermediate portion in the axial direction to one end in the axial direction.
【００１１】前記第３の紙送り部は、前記軸方向の前記
中間部から前記軸方向の他端部に向かって螺旋状に備え
られる。[0011] The third paper feed portion is provided spirally from the intermediate portion in the axial direction to the other end in the axial direction.
【００１２】前記第２の紙送り部及び前記第３の紙送り
部のそれぞれは、螺旋の巻き方向が、前記軸方向の前記
一端部から見て互いに逆向きである。In each of the second paper feeder and the third paper feeder, the spiral direction is opposite to each other when viewed from the one end in the axial direction.
【００１３】本発明に係る紙送りローラを、ＯＡ機器に
使用する際、軸方向の一端部から見た第２の紙送り部の
螺旋の巻き方向を時計方向としたとき、紙送りロ−ラを
反時計方向に回転され、前記軸方向の一端部から見た前
記第２の紙送り部の前記螺旋の巻き方向を反時計方向と
したとき、前記軸方向の一端部から見て、時計方向に回
転駆動される。When the paper feed roller according to the present invention is used in OA equipment, when the winding direction of the spiral of the second paper feed unit viewed from one end in the axial direction is clockwise, the paper feed roller is used. Is rotated in a counterclockwise direction, and when the winding direction of the spiral of the second paper feed unit as viewed from one end in the axial direction is a counterclockwise direction, clockwise as viewed from one end in the axial direction. Is driven to rotate.
【００１４】この場合、本発明に係る紙送りローラは、
第１の紙送り部を備えており、第１の紙送り部は、ロ−
ラ状であって、軸方向の中間部に備えられる。この構造
によれば、紙送りロ−ラを上述のように回転させた場
合、第１の紙送り部は、用紙の幅方向の中間部に接触し
ながら回転する。したがって、用紙には、回転方向と同
一方向の紙送り作用が加えられる。このため、用紙の幅
方向の中間部において、用紙に対し、回転方向と同一方
向の紙送り作用を与えることができる。In this case, the paper feed roller according to the present invention comprises:
A first paper feed unit, wherein the first paper feed unit is
It is shaped like a lattice and is provided at an intermediate portion in the axial direction. According to this structure, when the paper feed roller is rotated as described above, the first paper feed unit rotates while contacting the widthwise intermediate portion of the paper. Therefore, the paper is fed in the same direction as the rotation direction. For this reason, in the middle part in the width direction of the sheet, the sheet can be fed in the same direction as the rotation direction.
【００１５】第２の紙送り部は、軸方向の中間部から軸
方向の一端部に向かって螺旋状に備えられる。この構造
によれば、紙送りロ−ラを上述のように回転させた場
合、用紙には、軸方向の中間部から軸方向の一端部に向
かう力が加えられる。The second paper feed portion is provided spirally from an axial middle portion to an axial one end portion. According to this structure, when the paper feed roller is rotated as described above, a force is applied to the paper from the intermediate portion in the axial direction to one end in the axial direction.
【００１６】第３の紙送り部は、軸方向の中間部から軸
方向の他端部に向かって螺旋状に備えられる。しかも、
第３の紙送り部は、螺旋の巻き方向が、軸方向の一端部
から見て、第２の紙送り部とは逆向きである。この構造
によれば、紙送りロ−ラを上述のように回転させた場
合、用紙には、軸方向の中間部から軸方向の他端部に向
かう力が加えられる。The third paper feed portion is provided spirally from the axial middle portion to the other axial end portion. Moreover,
The spiral direction of the spiral of the third paper feed unit is opposite to that of the second paper feed unit when viewed from one end in the axial direction. According to this structure, when the paper feed roller is rotated as described above, a force is applied to the paper from the axial intermediate portion to the other axial end.
【００１７】上述のように、第２の紙送り部から用紙に
対して、軸方向の中間部から軸方向の一端部に向かう力
が与えられ、第３の紙送り部から用紙に対して、軸方向
の中間部から軸方向の他端部に向かう力が与えるので、
用紙は、その幅方向の両側から引っ張られた状態にな
る。このため、用紙に発生した皺が延ばされ、捩れが解
消される。As described above, a force is applied to the sheet from the second sheet feed unit toward the axial end from the intermediate portion in the axial direction. Because a force is applied from the axial middle part to the other axial end,
The sheet is pulled from both sides in the width direction. For this reason, the wrinkles generated on the paper are extended, and the twist is eliminated.
【００１８】更に、第２の紙送り部および第３の紙送り
部から用紙に対して、回転方向と同一方向の力が加えら
れ、用紙に対して回転方向と同一方向の送り出し作用が
与えられる。したがって、仮に、第１の紙送り部による
紙送り方向に狂いを生じた場合でも、第１の紙送り部の
両側において、第２の紙送り部及び第３の紙送り部によ
る送り方向修正動作が加わる。このため、用紙を、本来
の紙送り方向から逸脱することなく、円滑、かつ、迅速
に送ることができる。Further, a force in the same direction as the rotating direction is applied to the sheet from the second sheet feeding section and the third sheet feeding section, and the sheet is fed in the same direction as the rotating direction. . Therefore, even if a deviation occurs in the paper feeding direction of the first paper feeding unit, the operation of correcting the feeding direction by the second paper feeding unit and the third paper feeding unit on both sides of the first paper feeding unit. Is added. Therefore, the paper can be fed smoothly and quickly without deviating from the original paper feeding direction.
【００１９】本発明の更に具体的な特徴及び利点は、図
面を参照して更に具体的に説明する。Further specific features and advantages of the present invention will be described more specifically with reference to the drawings.
【００２０】[0020]
【発明の実施の形態】図１は本発明に係る紙送りロ−ラ
を示す正面図、図２は図１の軸方向の断面図である。図
１に示すように、紙送りロ−ラは、第１の紙送り部２
と、第２の紙送り部３と、第３の紙送り部４とを含む。
第１の紙送り部２は、ロ−ラ状であって、軸方向ａの中
間部１０に備えられている。FIG. 1 is a front view showing a paper feed roller according to the present invention, and FIG. 2 is a sectional view in the axial direction of FIG. As shown in FIG. 1, the paper feed roller comprises a first paper feed unit 2.
And a second paper feed unit 3 and a third paper feed unit 4.
The first paper feed unit 2 has a roller shape and is provided at an intermediate portion 10 in the axial direction a.
【００２１】第２の紙送り部３は、軸方向ａの中間部１
０から軸方向ａの一端部１１に向かって螺旋状に備えら
れている。第３の紙送り部４は、軸方向ａの中間部１０
から軸方向ａの他端部１２に向かって螺旋状に備えられ
ている。第２の紙送り部３及び第３の紙送り部４のそれ
ぞれは、螺旋の巻き方向が、軸方向ａの一端部１１から
見て互いに逆向きである。実施例では、一端部１１側か
ら見て、第２の紙送り部３は、時計回りの螺旋として形
成され、第３の紙送り部３は一端部１１側から見て、反
時計回りの螺旋として形成されている。The second paper feed unit 3 is provided at the intermediate portion 1 in the axial direction a.
It is provided spirally from 0 toward one end 11 in the axial direction a. The third paper feed unit 4 includes an intermediate portion 10 in the axial direction a.
From the other end 12 in the axial direction a. In each of the second paper feed unit 3 and the third paper feed unit 4, the spiral winding direction is opposite to each other when viewed from the one end 11 in the axial direction a. In the embodiment, the second paper feed unit 3 is formed as a clockwise spiral as viewed from the one end 11 side, and the third paper feed unit 3 is formed as a counterclockwise spiral as viewed from the one end 11 side. It is formed as.
【００２２】図２は使用状態における紙送りロ−ラの動
作を説明する平面図、図３〜図５は使用状態における紙
送りロ−ラの動作を説明する正面図である。FIG. 2 is a plan view for explaining the operation of the paper feed roller in the use state, and FIGS. 3 to 5 are front views for explaining the operation of the paper feed roller in the use state.
【００２３】実際に紙送りロ−ラを、紙送り装置に組み
込んで、ＯＡ機器に使用する際、第２の紙送り部３の螺
旋の巻き方向が、軸方向ａの一端部１１から見て、時計
回りの場合は、紙送りロ−ラを反時計回りに回転させ
る。第２の紙送り部３の螺旋の巻き方向が反時計回りの
場合は、紙送りロ−ラを時計回りに回転させる。以下、
第２の紙送り部３の螺旋の巻き方向が、軸方向ａの一端
部１１から見て、時計回りであり、紙送りロ−ラを反時
計回りに回転させるものとして説明する。When the paper feed roller is actually incorporated in a paper feeder and used in an OA apparatus, the winding direction of the spiral of the second paper feed unit 3 is viewed from one end 11 in the axial direction a. In the case of clockwise rotation, the paper feed roller is rotated counterclockwise. When the winding direction of the spiral of the second paper feed unit 3 is counterclockwise, the paper feed roller is rotated clockwise. Less than,
The description will be made assuming that the spiral direction of the spiral of the second paper feed unit 3 is clockwise as viewed from the one end 11 in the axial direction a, and the paper feed roller is rotated counterclockwise.
【００２４】上述したように、第１の紙送り部２は、ロ
−ラ状であって、軸方向ａの中間部１０に備えられる。
この構造によれば、紙送りロ−ラを上述のように回転さ
せた場合、第１の紙送り部２は、用紙５の幅方向Ｗの中
間部５０に接触しながら回転する。したがって、用紙５
には、回転方向ｃと同一方向の回転力Ｆ２２が加えられ
る。このため、用紙５の幅方向Ｗの中間部５０におい
て、用紙５に対して、回転方向ｃと同一方向に紙送り動
作を与えることができる。As described above, the first paper feed unit 2 is provided in the intermediate portion 10 in a roller shape and in the axial direction a.
According to this structure, when the paper feed roller is rotated as described above, the first paper feed unit 2 rotates while contacting the intermediate portion 50 of the paper 5 in the width direction W. Therefore, paper 5
, A rotational force F22 in the same direction as the rotational direction c is applied. For this reason, in the middle portion 50 of the paper 5 in the width direction W, the paper feeding operation can be performed on the paper 5 in the same direction as the rotation direction c.
【００２５】次に、第２の紙送り部３は、軸方向ａの中
間部１０から軸方向ａの一端部１１に向かって螺旋状に
備えられる。この構造によれば、紙送りロ−ラを上述の
ように回転させた場合、用紙５には、軸方向ａの中間部
５０から軸方向ａの一端５１に向かう力Ｆ３１が加えら
れる。Next, the second paper feed portion 3 is provided spirally from the intermediate portion 10 in the axial direction a to one end portion 11 in the axial direction a. According to this structure, when the paper feed roller is rotated as described above, a force F31 is applied to the paper 5 from the intermediate portion 50 in the axial direction a toward one end 51 in the axial direction a.
【００２６】また、第３の紙送り部４は、軸方向ａの中
間部４０から軸方向ａの他端部４１に向かって螺旋状に
備えられる。しかも、第２の紙送り部３及び第３の紙送
り部４のそれぞれは、螺旋の巻き方向が、軸方向ａの一
端部１１から見て互いに逆向きである。この構造によれ
ば、紙送りロ−ラを上述のように回転させた場合、用紙
５には、軸方向ａの中間部５０から軸方向ａの他端５２
に向かう力Ｆ４１が加えられる。The third paper feed section 4 is provided spirally from the intermediate section 40 in the axial direction a to the other end 41 in the axial direction a. Moreover, the winding directions of the spirals of the second paper feed unit 3 and the third paper feed unit 4 are opposite to each other when viewed from the one end 11 in the axial direction a. According to this structure, when the paper feed roller is rotated as described above, the paper 5 is moved from the intermediate portion 50 in the axial direction a to the other end 52 in the axial direction a.
Is applied.
【００２７】上述のように、第２の紙送り部３から用紙
５に対して、軸方向ａの中間部１０から軸方向ａの一端
部１１に向かう力Ｆ３１が与えられ、第３の紙送り部４
から用紙５に対して、軸方向ａの中間部１０から軸方向
ａの他端部１２に向かう力Ｆ４１が与えられるから、用
紙５は、その幅方向の両側から引っ張られた状態にな
る。このため、用紙５に発生した皺が延ばされ、捩れが
解消される。As described above, the force F31 from the intermediate portion 10 in the axial direction a toward the one end 11 in the axial direction a is applied to the paper 5 from the second paper feed portion 3, and the third paper feed Part 4
From the intermediate portion 10 in the axial direction a toward the other end portion 12 in the axial direction a, the paper 5 is pulled from both sides in the width direction. For this reason, the wrinkles generated on the paper 5 are extended, and the twist is eliminated.
【００２８】しかも、第２の紙送り部３および第３の紙
送り部４から用紙５に対して、回転方向ｃと同一方向の
回転力Ｆ３２、Ｆ４２が与えられる。したがって、仮
に、第１の紙送り部２の力Ｆ２２による紙送り方向に狂
いを生じた場合でも、第１の紙送り部２の両側におい
て、第２の紙送り部３及び第３の紙送り部４による送り
方向修正動作が加わる。このため、用紙５を、本来の紙
送り方向から逸脱することなく、円滑、かつ、迅速に送
ることができる。Further, rotational forces F32 and F42 in the same direction as the rotational direction c are applied to the paper 5 from the second paper feed unit 3 and the third paper feed unit 4. Therefore, even if a deviation occurs in the paper feed direction due to the force F22 of the first paper feed unit 2, the second paper feed unit 3 and the third paper feed unit are provided on both sides of the first paper feed unit 2. The feed direction correcting operation by the unit 4 is added. For this reason, the paper 5 can be smoothly and rapidly fed without departing from the original paper feeding direction.
【００２９】本実施例では、第２の紙送り部３及び第３
の紙送り部４のそれぞれは、軸方向ａのピッチが、同じ
ピッチＬである（図１参照）。この構造によれば、力Ｆ
３１の大きさと、力Ｆ３２の大きさとが等しくなる。し
たがって、用紙５の幅方向Ｗの両端側において、同じ大
きさの力が、軸方向の逆向きに働く。このため、皺及び
捩れの解消動作が向上する。In this embodiment, the second paper feed unit 3 and the third paper feed unit 3
Have the same pitch L in the axial direction a (see FIG. 1). According to this structure, the force F
The magnitude of the force 31 and the magnitude of the force F32 are equal. Accordingly, forces of the same magnitude act in opposite axial directions on both ends of the paper 5 in the width direction W. For this reason, the operation of eliminating wrinkles and twists is improved.
【００３０】また、この構造によれば、力Ｆ４１の大き
さと、力Ｆ４２の大きさとが等しくなる。したがって、
したがって、用紙５の幅方向Ｗの両端側において、同じ
大きさの力が、回転方向ｃと同一方向に働く。このた
め、送り方向修正動作が向上する。Further, according to this structure, the magnitude of the force F41 is equal to the magnitude of the force F42. Therefore,
Therefore, forces of the same magnitude act in the same direction as the rotation direction c at both ends in the width direction W of the paper 5. For this reason, the feed direction correcting operation is improved.
【００３１】更に、本実施例では、軸方向ａの中間部に
おいて、第２の紙送り部３の始点３０と、第３の紙送り
部４の始点４０とが、支持体１の軸芯Ｏ（図１参照）を
含む同一平面（図示しない）の上に位置する。このた
め、用紙５に対して、同じタイミングで同じ大きさの力
が方向ａ１および方向ａ２に働く。このため、送り方向
修正動作および皺及び捩れの解消動作に優れた紙送りロ
−ラが得られる。Further, in the present embodiment, the starting point 30 of the second paper feeding section 3 and the starting point 40 of the third paper feeding section 4 are located at the intermediate portion in the axial direction a. It is located on the same plane (not shown) including (see FIG. 1). Therefore, the same magnitude of force acts on the sheet 5 at the same timing in the direction a1 and the direction a2. For this reason, a paper feed roller excellent in the feed direction correcting operation and the operation of eliminating wrinkles and twists can be obtained.
【００３２】図６は本発明に係る紙送りローラの更に具
体的な実施例を示す断面図である。図６に示すように、
紙送りロ−ラは、支持体１を含む。第１の紙送り部２、
第２の紙送り部３及び第３の紙送り部４は、支持体１に
よって支持されている。この構造によれば、支持体１
と、第１の紙送り部２、第２の紙送り部３及び第３の紙
送り部４とを異なる材質で構成することが可能になる。
支持体１は、金属等の剛体、ゴム等の弾性材料またはプ
ラスチック材料等によって構成できる。FIG. 6 is a sectional view showing a more specific embodiment of the paper feed roller according to the present invention. As shown in FIG.
The paper feed roller includes a support 1. A first paper feed unit 2,
The second paper feed unit 3 and the third paper feed unit 4 are supported by the support 1. According to this structure, the support 1
And the first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4 can be made of different materials.
The support 1 can be made of a rigid material such as metal, an elastic material such as rubber, or a plastic material.
【００３３】用紙に対する密着性および紙送りの際の用
紙の滑りにくさを考慮すると、第１の紙送り部２、第２
の紙送り部３及び第３の紙送り部４は、紙接触面の動摩
擦係数が、支持体１の外周面の動摩擦係数よりも大きく
なければならない。第１の紙送り部２、第２の紙送り部
３及び第３の紙送り部４を構成する材質としては、例え
ば、ポリウレタン樹脂等が挙げられる。ポリウレタン樹
脂の場合は、支持体１を金属等の剛体、ゴム等の弾性材
料またはプラスチック材料等によって構成した場合で
も、それよりも大きな同摩擦係数を確保することができ
る。In consideration of the adhesion to the paper and the difficulty of the paper slipping during paper feeding, the first paper feeding section 2 and the second paper feeding section 2
In the paper feed unit 3 and the third paper feed unit 4, the kinetic friction coefficient of the paper contact surface must be larger than the kinetic friction coefficient of the outer peripheral surface of the support 1. Examples of the material forming the first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4 include a polyurethane resin and the like. In the case of a polyurethane resin, even when the support 1 is made of a rigid material such as metal, an elastic material such as rubber, or a plastic material, a larger coefficient of friction can be secured.
【００３４】図６に示した実施例では、支持体１は、円
形状の外周面を有する。第１の紙送り部２、第２の紙送
り部３及び第３の紙送り部４は、シート状の部材を、支
持体１の外周面に巻き付けられて構成されている。この
構造によれば、加工が容易であり、生産性に優れた紙送
りロ−ラが得られる。第１の紙送り部２、第２の紙送り
部３及び第３の紙送り部４を構成するシート状の部材と
しては、ポリウレタン樹脂シートが好ましい。In the embodiment shown in FIG. 6, the support 1 has a circular outer peripheral surface. The first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4 are configured by winding a sheet-shaped member around the outer peripheral surface of the support 1. According to this structure, a paper feed roller which is easy to process and has excellent productivity can be obtained. As the sheet-like members constituting the first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4, a polyurethane resin sheet is preferable.
【００３５】更に、支持体１は、回転軸１３１と、支持
部１３２とを含む。回転軸１３１は、金属などの剛体で
なる。支持部１３２は、回転軸１３１によって支持され
る。実施例では、回転軸１３１は、紙送りロ−ラの軸方
向の全長に亘って備えられているが、紙送りロ−ラの軸
方向の両端部にのみ備えられていてもよい。Further, the support 1 includes a rotation shaft 131 and a support 132. The rotation shaft 131 is made of a rigid body such as a metal. The support 132 is supported by the rotation shaft 131. In the embodiment, the rotating shaft 131 is provided over the entire length of the paper feed roller in the axial direction. However, the rotary shaft 131 may be provided only at both ends in the axial direction of the paper feed roller.
【００３６】既に述べた通り、紙送りロ−ラをＯＡ機器
に使用する際は、紙送り部が用紙に密着するように、紙
送りロ−ラに対して大きな圧力が掛けられる。支持体１
において、支持部１３２の材質は、この圧力の強弱に対
応して任意に変更し得る。圧力が弱い場合、支持部１３
２は、例えば、鉄、アルミニウム等の剛体でなる。As described above, when the paper feed roller is used in the OA equipment, a large pressure is applied to the paper feed roller so that the paper feed unit comes into close contact with the paper. Support 1
In, the material of the support portion 132 can be arbitrarily changed in accordance with the strength of the pressure. If the pressure is weak, the support 13
2 is made of a rigid body such as iron or aluminum.
【００３７】圧力が強い場合、支持部１３２は、ポリウ
レタン樹脂より動摩擦係数の小さい弾性体でなる。この
構造によれば、紙送りの際、用紙と接触する面積が増加
する。したがって、ポリウレタン樹脂でなる第１の紙送
り部２、第２の紙送り部３及び第３の紙送り部４との相
乗効果によって、より確実な紙送りが可能になる。When the pressure is high, the support 132 is made of an elastic material having a smaller dynamic friction coefficient than the polyurethane resin. According to this structure, the area that comes into contact with the paper during paper feeding increases. Therefore, a more reliable paper feed can be achieved by the synergistic effect of the first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4 made of polyurethane resin.
【００３８】図７は本発明に係る紙送りロ−ラの別の実
施例を示す軸方向の断面図である。図１に示された構成
部分と同一の構成部分は、同一の参照符号を付し、説明
は省略する。図７に示した実施例の特徴は、支持体１
と、第１の紙送り部２、第２の紙送り部３及び第３の紙
送り部４とが同体であることである。FIG. 7 is an axial sectional view showing another embodiment of the paper feed roller according to the present invention. The same components as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. The feature of the embodiment shown in FIG.
And the first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4 are the same.
【００３９】支持体１、第１の紙送り部２、第２の紙送
り部３及び第３の紙送り部４は、ポリウレタン樹脂等の
弾性体で構成される。この構造によれば、紙送りの際、
用紙と接触する面積が増加する。したがって、ポリウレ
タン樹脂でなる第１の紙送り部２、第２の紙送り部３及
び第３の紙送り部４との相乗効果によって、より確実な
紙送りが可能になる。The support 1, the first paper feeder 2, the second paper feeder 3, and the third paper feeder 4 are made of an elastic material such as polyurethane resin. According to this structure, when paper is fed,
The area in contact with the paper increases. Therefore, a more reliable paper feed can be achieved by the synergistic effect of the first paper feed unit 2, the second paper feed unit 3, and the third paper feed unit 4 made of polyurethane resin.
【００４０】第１の紙送り部２、第２の紙送り部３及び
第３の紙送り部４は、例えば、ポリウレタン樹脂等で構
成される。ポリウレタン樹脂は、動摩擦係数の大きな材
料であるから、用紙５に対する密着性に優れた紙送りロ
−ラが得られる。The first paper feeder 2, the second paper feeder 3, and the third paper feeder 4 are made of, for example, polyurethane resin. Since the polyurethane resin is a material having a large dynamic friction coefficient, a paper feed roller having excellent adhesion to the paper 5 can be obtained.
【００４１】[0041]
【発明の効果】以上述べたように、本発明によれば、次
のような効果を得ることができる。 （ａ）円滑、かつ、迅速な紙送り動作を実行し得る紙送
りロ−ラを提供することができる。 （ｂ）用紙に発生した皺や捩れを延ばす動作を実行し得
る紙送りロ−ラを提供することができる。As described above, according to the present invention, the following effects can be obtained. (A) A paper feed roller capable of executing a smooth and quick paper feed operation can be provided. (B) It is possible to provide a paper feed roller capable of executing an operation of extending wrinkles and twists generated on paper.
【図１】本発明に係る紙送りロ−ラを示す正面図であ
る。FIG. 1 is a front view showing a paper feed roller according to the present invention.
【図２】図１に示した紙送りローラを用いた紙送り装置
の動作を説明する平面図である。FIG. 2 is a plan view illustrating the operation of a paper feeder using the paper feed roller shown in FIG.
【図３】図２に示した紙送り装置の動作を説明する正面
図である。FIG. 3 is a front view for explaining the operation of the paper feeding device shown in FIG. 2;
【図４】図２に示した紙送り装置の動作を説明する正面
図である。FIG. 4 is a front view illustrating the operation of the paper feeding device shown in FIG. 2;
【図５】図２に示した紙送り装置の動作を説明する正面
図である。FIG. 5 is a front view illustrating the operation of the paper feeding device shown in FIG. 2;
【図６】本発明に係る紙送りロ−ラの別の実施例を示す
断面図である。FIG. 6 is a sectional view showing another embodiment of the paper feed roller according to the present invention.
【図７】本発明に係る紙送りロ−ラの更に別の実施例を
示す断面図である。FIG. 7 is a sectional view showing still another embodiment of the paper feed roller according to the present invention.
１ 支持体 ２ 第１の紙送り部 ３ 第２の紙送り部 ４ 第３の紙送り部 DESCRIPTION OF SYMBOLS 1 Support body 2 1st paper feed part 3 2nd paper feed part 4 3rd paper feed part
Claims (12)
第３の紙送り部とを含む紙送りロ−ラであって、 前記第１の紙送り部は、ロ−ラ状であって、軸方向の中
間部に備えられており、 前記第２の紙送り部は、前記軸方向の前記中間部から前
記軸方向の一端部に向かって螺旋状に備えられており、 前記第３の紙送り部は、前記軸方向の前記中間部から前
記軸方向の他端部に向かって螺旋状に備えられており、 前記第２の紙送り部及び前記第３の紙送り部のそれぞれ
は、螺旋の巻き方向が、前記軸方向の前記一端部から見
て互いに逆向きである紙送りロ−ラ。A first paper feeder, a second paper feeder,
A paper feed roller including a third paper feed unit, wherein the first paper feed unit has a roller shape, and is provided at an intermediate portion in an axial direction; The paper feed portion is provided spirally from the intermediate portion in the axial direction toward one end in the axial direction. The third paper feed portion is provided in the axial direction from the intermediate portion in the axial direction. The second paper feed unit and the third paper feed unit each have a spiral winding direction as viewed from the one end in the axial direction. Paper feed rollers that are opposite to each other.
って、 前記第２の紙送り部及び前記第３の紙送り部のそれぞれ
は、前記螺旋の前記軸方向のピッチがほぼ同じである紙
送りロ−ラ。2. The paper feed roller according to claim 1, wherein each of the second paper feed unit and the third paper feed unit has a pitch of the spiral in the axial direction substantially. The same paper feed roller.
紙送りロ−ラであって、 前記第２の紙送り部及び前記第３の紙送り部のそれぞれ
は、前記軸方向の前記中間部における螺旋始点が、中心
軸を含む同一平面上に位置する紙送りロ−ラ。3. The paper feed roller according to claim 1, wherein each of the second paper feed unit and the third paper feed unit is arranged in the axial direction. A paper feed roller in which the spiral start point in the intermediate portion is located on the same plane including the central axis.
って、 更に支持体を含み、 前記第１の紙送り部、前記第２の紙送り部および前記第
３の紙送り部は、前記支持体によって支持されている紙
送りロ−ラ。4. The paper feed roller according to claim 1, further comprising a support, wherein the first paper feed unit, the second paper feed unit, and the third paper feed unit. Is a paper feed roller supported by the support.
って、 前記支持体は、円形状の外周面を有しており、 前記第１の紙送り部、前記第２の紙送り部および前記第
３の紙送り部は、シート状の部材を、前記支持体の外周
面に巻き付けて構成されている紙送りロ−ラ。5. The paper feed roller according to claim 4, wherein the support has a circular outer peripheral surface, and wherein the first paper feed portion and the second paper are provided. A paper feed roller in which the feed unit and the third paper feed unit are configured by winding a sheet-like member around the outer peripheral surface of the support.
って、 前記第１の紙送り部、前記第２の紙送り部及び前記第３
の紙送り部は、紙接触面の動摩擦係数が、前記支持体の
外周面の動摩擦係数よりも大きい紙送りロ−ラ。6. The paper feed roller according to claim 5, wherein the first paper feed unit, the second paper feed unit, and the third paper feed unit.
A paper feed roller wherein the coefficient of kinetic friction of the paper contact surface is larger than the coefficient of kinetic friction of the outer peripheral surface of the support.
って、 前記第１の紙送り部、前記第２の紙送り部及び前記第３
の紙送り部は、ポリウレタン樹脂でなる紙送りロ−ラ。7. The paper feed roller according to claim 6, wherein the first paper feed unit, the second paper feed unit, and the third paper feed unit.
Is a paper feed roller made of polyurethane resin.
って、 前記支持体は、剛体でなる紙送りロ−ラ。8. The paper feed roller according to claim 7, wherein the support is a rigid body.
って、 前記支持体は、弾性体でなる紙送りロ−ラ。9. The paper feed roller according to claim 7, wherein the support is made of an elastic material.
あって、 更に支持体を含み、 前記支持体と、前記第１の紙送り部、前記第２の紙送り
部および前記第３の紙送り部とは、同体である紙送りロ
−ラ。10. The paper feed roller according to claim 1, further comprising a support, wherein said support, said first paper feed unit, said second paper feed unit, and said second paper feed unit. The paper feed unit 3 is a paper feed roller that is the same body.
であって、 前記支持体、前記第１の紙送り部、前記第２の紙送り部
および前記第３の紙送り部は、ポリウレタン樹脂でなる
紙送りロ−ラ。11. The paper feed roller according to claim 10, wherein the support, the first paper feed unit, the second paper feed unit, and the third paper feed unit are: Paper feed roller made of polyurethane resin.
って、 前記紙送りローラは、請求項１〜１１の何れかに記載さ
れたものでなり、 前記紙送りローラは、前記軸方向の一端部から見た前記
第２の紙送り部の前記螺旋の巻き方向を時計方向とした
とき、前記軸方向の一端部から見て、反時計方向に回転
駆動され、前記軸方向の一端部から見た前記第２の紙送
り部の前記螺旋の巻き方向を反時計方向としたとき、前
記軸方向の一端部から見て、時計方向に回転駆動される
紙送り装置。12. A paper feeder having a paper feed roller, wherein the paper feed roller is as described in any one of claims 1 to 11, wherein the paper feed roller is in the axial direction. When the winding direction of the spiral of the second paper feed unit viewed from one end of the second direction is a clockwise direction, the second paper feed unit is driven to rotate counterclockwise as viewed from one end in the axial direction, and one end in the axial direction. A paper feed device that is driven to rotate clockwise when viewed from one end in the axial direction, when a winding direction of the spiral of the second paper feed unit as viewed from above is a counterclockwise direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10252084A JP2000086004A (en) | 1998-09-07 | 1998-09-07 | Paper feeding roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10252084A JP2000086004A (en) | 1998-09-07 | 1998-09-07 | Paper feeding roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000086004A true JP2000086004A (en) | 2000-03-28 |
Family
ID=17232335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10252084A Pending JP2000086004A (en) | 1998-09-07 | 1998-09-07 | Paper feeding roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000086004A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002103718A (en) * | 2000-07-27 | 2002-04-09 | Hewlett Packard Co <Hp> | Roller element for hard copy machine |
| JP2004331234A (en) * | 2003-04-30 | 2004-11-25 | Takumi Seiko:Kk | Support body for paper feeding roller and paper feeding device |
| JP2004331235A (en) * | 2003-04-30 | 2004-11-25 | Takumi Seiko:Kk | Paper feeding roller and paper feeding device |
| JP2007302403A (en) * | 2006-05-11 | 2007-11-22 | Nitta Ind Corp | Pulley |
| JP2010187890A (en) * | 2009-02-18 | 2010-09-02 | Oji Nepia Co Ltd | Method for manufacturing roll-shaped sanitary paper |
| JP2010220799A (en) * | 2009-03-24 | 2010-10-07 | Oji Nepia Co Ltd | Multi-ply sanitary paper manufacturing method |
| CN104444519A (en) * | 2014-10-29 | 2015-03-25 | 广州广电运通金融电子股份有限公司 | Sheet flattening device |
| JP2015117134A (en) * | 2013-11-13 | 2015-06-25 | 株式会社リコー | Sheet processing device, image formation system, and folding part additional folding method |
| JP2022025879A (en) * | 2020-07-30 | 2022-02-10 | 株式会社都ローラー工業 | Conveyance roll, and thin material manufacturing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50142891U (en) * | 1974-05-10 | 1975-11-25 | ||
| JPS60193346U (en) * | 1984-05-31 | 1985-12-23 | 株式会社 小林製作所 | Rolls in web winders, etc. |
| JPH0258927U (en) * | 1988-10-19 | 1990-04-27 | ||
| JPH02145852A (en) * | 1988-11-22 | 1990-06-05 | N C Ee:Kk | Continuous cloth winder, the method therefor, and selvage treatment mechanism |
| JPH06297605A (en) * | 1993-02-22 | 1994-10-25 | Miyagawa Roller Kk | Expander roller |
-
1998
- 1998-09-07 JP JP10252084A patent/JP2000086004A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50142891U (en) * | 1974-05-10 | 1975-11-25 | ||
| JPS60193346U (en) * | 1984-05-31 | 1985-12-23 | 株式会社 小林製作所 | Rolls in web winders, etc. |
| JPH0258927U (en) * | 1988-10-19 | 1990-04-27 | ||
| JPH02145852A (en) * | 1988-11-22 | 1990-06-05 | N C Ee:Kk | Continuous cloth winder, the method therefor, and selvage treatment mechanism |
| JPH06297605A (en) * | 1993-02-22 | 1994-10-25 | Miyagawa Roller Kk | Expander roller |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002103718A (en) * | 2000-07-27 | 2002-04-09 | Hewlett Packard Co <Hp> | Roller element for hard copy machine |
| US6969061B1 (en) | 2000-07-27 | 2005-11-29 | Hewlett-Packard Development Company, L.P. | Roller element for hardcopy apparatus |
| JP2004331234A (en) * | 2003-04-30 | 2004-11-25 | Takumi Seiko:Kk | Support body for paper feeding roller and paper feeding device |
| JP2004331235A (en) * | 2003-04-30 | 2004-11-25 | Takumi Seiko:Kk | Paper feeding roller and paper feeding device |
| JP2007302403A (en) * | 2006-05-11 | 2007-11-22 | Nitta Ind Corp | Pulley |
| JP2010187890A (en) * | 2009-02-18 | 2010-09-02 | Oji Nepia Co Ltd | Method for manufacturing roll-shaped sanitary paper |
| JP2010220799A (en) * | 2009-03-24 | 2010-10-07 | Oji Nepia Co Ltd | Multi-ply sanitary paper manufacturing method |
| JP2015117134A (en) * | 2013-11-13 | 2015-06-25 | 株式会社リコー | Sheet processing device, image formation system, and folding part additional folding method |
| CN104444519A (en) * | 2014-10-29 | 2015-03-25 | 广州广电运通金融电子股份有限公司 | Sheet flattening device |
| JP2022025879A (en) * | 2020-07-30 | 2022-02-10 | 株式会社都ローラー工業 | Conveyance roll, and thin material manufacturing device |
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