KR900010230Y1 - Sheet supplying device of copying machine - Google Patents

Sheet supplying device of copying machine Download PDF

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Publication number
KR900010230Y1
KR900010230Y1 KR2019870016252U KR870016252U KR900010230Y1 KR 900010230 Y1 KR900010230 Y1 KR 900010230Y1 KR 2019870016252 U KR2019870016252 U KR 2019870016252U KR 870016252 U KR870016252 U KR 870016252U KR 900010230 Y1 KR900010230 Y1 KR 900010230Y1
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KR
South Korea
Prior art keywords
shaft
fixed
roll
paper
shafts
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KR2019870016252U
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Korean (ko)
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KR890007407U (en
Inventor
김영건
Original Assignee
주식회사 금성사
최근선
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Priority to KR2019870016252U priority Critical patent/KR900010230Y1/en
Publication of KR890007407U publication Critical patent/KR890007407U/en
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Publication of KR900010230Y1 publication Critical patent/KR900010230Y1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G03G15/6511—Feeding devices for picking up or separation of copy sheets
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647—Mechanical connection means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00396—Pick-up device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/004—Separation device

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

내용 없음.No content.

Description

복사기의 급지장치Copier Feeder

제1도는 종래 급지장치의 단면도.1 is a cross-sectional view of a conventional paper feeder.

제2도는 종래 급지장치에 적용되는 급지카세트를 보인 부분 사시도.2 is a partial perspective view showing a paper feed cassette applied to a conventional paper feeder.

제3도는 본 고안 장치의 구성을 보인 사시도.Figure 3 is a perspective view showing the configuration of the device of the present invention.

제4도는 본 고안 장치의 부분 측단면도.4 is a partial side cross-sectional view of the device of the present invention.

제5a, b도는 본 고안 장치의 요부인 스프링클러치와 분리를 구성을 보인 분해사시도 및 결합상태 종단면도.Figure 5a, b is an exploded perspective view and a coupled state longitudinal cross-sectional view showing the configuration of the sprinkler clutch and the main part of the device of the present invention.

제6a, b, c, d도는 본 고안 장치의 작용을 설명하기 위한 설명도.6a, b, c, d is an explanatory diagram for explaining the operation of the device of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11, 12, 13, 15, 16, 29 : 축 11', 12' : 스프로켓11, 12, 13, 15, 16, 29: shaft 11 ', 12': sprocket

17 : 종동기어 18 : 구동기어17: driven gear 18: drive gear

19 : 체인 20 : 급지롤19: chain 20: paper feed roll

21 : 아버 22 : 분리롤21: arbor 22: separation roll

21a, 22a : 원통부 23 : 클러치 스프링21a, 22a: Cylindrical part 23: Clutch spring

24, 25 : 풀리 26, 31 : 타이밍벨트24, 25: pulley 26, 31: timing belt

27 : 연결구 28 : 픽업롤27: connector 28: pickup roll

32 : 구동기어 33 : 종동기어32: drive gear 33: driven gear

34 : 캠 35 : 캠레버34: cam 35: cam lever

본 고안은 복사기의 급지장치에 관한 것으로, 특히 분리롤을 사용하여 중, 고속 복사기에서 복사용지의 2매 급지를 방지할 수 있게 한 급지장치에 관한 것이다.The present invention relates to a paper feeder for a copier, and more particularly, to a paper feeder that can prevent feeding two sheets of copy paper in a medium and high speed copier by using a separation roll.

종래 복사기의 급지장치는 제1도 및 제2도에 도시한 바와 같이 카세트본체(1)에 이너플레이트(2)를 착설하고, 양측의 가이드플레이트(3)에 분리조(jaw)(4)를 힌지핀(5)으로 회동가능하게 결합하며, 이너플레이트(2)의 하측에 탄력설치한 압축스프링(6)에 의하여 이너플레이트(2) 상면의 복사용지(7)가 본체(1)에 축착된 급지롤(8)에 적절한 압력으로 접촉되게 되어 있다.In the paper feeder of the conventional copier, as shown in FIGS. 1 and 2, the inner plate 2 is mounted on the cassette body 1, and the separating jaws 4 are attached to the guide plates 3 on both sides. The copying paper 7 on the upper surface of the inner plate 2 is condensed to the main body 1 by a hinge spring 5 so as to be rotatable and coupled by a compression spring 6 elastically installed below the inner plate 2. The paper feed roll 8 is brought into contact with an appropriate pressure.

이와 같은 급지장치는 급지롤(8)이 도시한 화살표방향으로 회전함에 따라 가장위에 있는 복사용지(7) 1매만 급지되도록 분리조(4)를 설치하였는 바, 복사용지(7)가 2매 급지되는 경우에도 분리조(4)를 빠지는 순간 상하의 복사용지가 분리되어서 윗장만 급지된다.In this paper feeding device, the separation tank 4 is installed so that only one copy paper 7 is fed at the top as the feed roll 8 rotates in the direction of the arrow, and the copy paper 7 feeds two sheets. Even when the separation tank 4 is removed, the upper and lower copy paper is separated and only the upper sheet is fed.

저속복사시에는 종래 기술과 같은 2매 급지장치구조가 주로 채용되고 있지만, 중, 고속 복사인 경우에는 분리조(4)로 다매 급지를 방지하기 어려우며, 압축스프링(6)이 피로로 인하여 마찰력 감소되면 미급지되는 등의 문제점이 있다.In the case of low-speed copying, the two-sheet feeder structure as in the prior art is mainly employed, but in the case of medium and high-speed copying, it is difficult to prevent the multi-sheet feeding with the separating tank 4, and the compression spring 6 reduces the frictional force due to fatigue. There is a problem such as being unpaid.

또 연속사용함에 따라 힌지핀(5)을 중심으로 가이드플레이트(3)로 부터 힌지운동을 하는 분리조(4)가 가이드플레이트(3)와 벌어져 틈이 발생하게 되면 2매 급지를 방지하지 못하게 되는 결함이 있었다.In addition, when the separation tank (4) which hinges from the guide plate (3) around the hinge pin (5) is opened with the guide plate (3) as it is continuously used, it is impossible to prevent feeding of two sheets. There was a fault.

본 고안은 이와 같은 종래의 결함을 해소하기 위하여 안출한 것으로, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.The present invention is devised to solve such a conventional defect, described in detail by the accompanying drawings as follows.

제3도 내지 제6도에 도시한 바와 같이 복사기 본체의 내부에 축(11)(12)(13)(14)(15)(16)이 평행하게 굴대설치되어 있고 축(11)(14)에 서로 맞물리는 종동기어(17)와 구동기어(18)가 고정되어 있으며 축(11)(12)에 고정한 스프로켓(11')(12')에는 체인(19)이 연결되어 있다.As shown in FIGS. 3 to 6, the shafts 11, 12, 13, 14, 15 and 16 are mounted in parallel in the copier main body, and the shafts 11 and 14 are arranged in parallel. The driven gear 17 and the drive gear 18 which mesh with each other are fixed to each other, and the chain 19 is connected to the sprockets 11 'and 12' fixed to the shafts 11 and 12.

그리고 축(12)에는 급지롤(20)이 고정됨과 아울러 축(11)에는 아버( arbor)(21)가 고정되고 그 외측에는 분리롤(22)이 유착되며(즉, 유동가능하게 부착되며), 아버(21)의 원통부(21a)와 분리롤(22)측의 원통부(22a)에는 원통형 클러치스프링(23)이 감아져 있다. 그 클러치스프링(23)은 사각단면을 가지는 강선으로 형성된 것이다.In addition, the feed roll 20 is fixed to the shaft 12, and an arbor 21 is fixed to the shaft 11, and a separation roll 22 is adhered to the outside thereof (that is, it is fluidly attached). The cylindrical clutch spring 23 is wound around the cylindrical portion 21a of the arbor 21 and the cylindrical portion 22a on the separation roll 22 side. The clutch spring 23 is formed of a steel wire having a rectangular cross section.

상기 축(12)에 고정된 풀리(24)와 축(13)에 유착된 풀리(25)에는 타이밍벨트(26)가 연결되고, 상기 축(13)에는 풀리(25) 일측에 위치하도록 연결구(27)가 고정되어 그 연결구(27)에는 픽업롤(28)이 축(29)으로 축착되며 그 축(29)에 고정된 풀리(30)와 상기 축(13)에 유착된 풀리(25)에는 타이밍ㄹ벨브(31)가 걸리어 연결되어 있다.A timing belt 26 is connected to the pulley 24 fixed to the shaft 12 and the pulley 25 bonded to the shaft 13, and the connector 13 is positioned at one side of the pulley 25 to the shaft 13. 27 is fixed to the connector 27, the pick-up roll 28 is fixed to the shaft 29, the pulley 30 is fixed to the shaft 29 and the pulley 25 adhered to the shaft 13 The timing valve 31 is engaged and connected.

또한, 상기 축(15)(16)에는 구동기어(32)와 종동기어(33)가 각각 고정되고 종동기어(33)에는 캠(34)이 일체로 형성되어 그 캠(34)에는 상기 축(13)의 단부에 고정된 캠레버(35)가 접촉되어 있다. 도면에서 36은 급지카세트이고, P는 복사용지를 보인 것이며, 37은 고정핀을 보인 것이다.In addition, drive shafts 32 and driven gears 33 are fixed to the shafts 15 and 16, respectively, and cams 34 are integrally formed on the driven gears 33. The cam lever 35 fixed to the end of 13 is in contact. In the figure, 36 is a paper cassette, P is a copy paper, and 37 is a fixing pin.

이와 같이 된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention made as follows.

제3도 및 제4도는 축(13)에 고정된 캠레버(35)가 캠(34)의 원호면과 떨어져 있고 축(13)의 연결구(27)에 축착되어 있는 급지롤(28)이 카세트(36)위에 올려진 복사용지(P)의 상면에 접촉되어 있는 상태를 보인 것이다.3 and 4, the feed roll 28 in which the cam lever 35 fixed to the shaft 13 is separated from the circular arc surface of the cam 34 and is fixed to the connector 27 of the shaft 13 is cassette. (36) shows the state of being in contact with the upper surface of the copy paper (P) placed on.

이와 같이 된 제3도 및 제4도에서 구동기어(32)는 정지하여 있고 구동기어(18)가 회전하면 종동기어(17)가 동력을 전달받아 분리롤(22)의 축(11)이 회전하고 스프로켓(11')(12')및 체인(19)으로 인하여 급지롤(20)이 회전한다. 즉, 축(11)(12)이 제3도에 실선으로 도시한 화살표방향으로 회전하면 그 회전력은 급지롤(20)과 분리롤(22)을 점선으로 도시한 화살표방향으로 회전시키려 하고, 급지롤(20)과 분리롤(22)의 마찰력은 도시한 실선방향으로 회전시키려 하는데 이때 스프링(23)의 결합부분에서 슬립이 일어나게 되어 결국 분리롤(22)은 급지롤(20)과 함께 실선방향으로 회전하게 된다.In FIG. 3 and FIG. 4, the driving gear 32 is stopped. When the driving gear 18 rotates, the driven gear 17 receives power, and the shaft 11 of the separation roll 22 rotates. The feed roll 20 rotates due to the sprockets 11 ', 12' and the chain 19. That is, when the shafts 11 and 12 rotate in the direction of the arrow shown by the solid line in FIG. 3, the rotational force tries to rotate the paper roll 20 and the separation roll 22 in the direction of the arrow shown by the dotted line, The friction force between the roll 20 and the separation roll 22 is to be rotated in the solid line direction as shown, whereby slip occurs at the engaging portion of the spring 23 so that the separation roll 22 is in the solid line direction together with the feed roll 20 Will rotate.

또 축(12)의 회전에 따라 풀리(24). 벨트(26), 풀리(25), 벨트(31)순으로 동력이 전달되어 풀리(30)가 회전됨에 따라, 풀리(30)가 고정되어 있는 축(29)이 회전하고 그에 고정된 픽업롤(28)이 실선방향으로 회전하여 카세트(36)에 담긴 복사용지(P)는 픽업롤(28), 급지롤(20)및 분리롤(22)의 회전에 의하면 도시한 "가"방향으로 이송된다.In addition, the pulley 24 in accordance with the rotation of the shaft (12). As power is transmitted in order of the belt 26, the pulley 25, and the belt 31, and the pulley 30 is rotated, the shaft 29 on which the pulley 30 is fixed rotates and the pickup roll fixed thereto ( 28 is rotated in the solid direction, and the copy paper P contained in the cassette 36 is conveyed in the " ga " direction according to the rotation of the pickup roll 28, the feed roll 20, and the separation roll 22. As shown in FIG. .

이하, 제6도를 참조하여 급지롤(20)과 분리롤(22)의 작용을 설명하면, 제6a, 6b도에 도시한 바와 같이, 급지롤(20)과 분리롤(22)사이에 복사용지(P)가 삽입되지 않는 경우나, 복사용지(P)가 1매만 삽입되는 경우에는 급지롤(20)과 분리롤(22)이 마찰력에 의하여 도시한 실선방향으로 회전하게 되고, 제6b도 상태에서는 복사용지(P)를 "가"방향으로 이송시키게 되며, 이때에 스프링(23)은 그 반경이 늘어나면서 슬립이 발생하게 된다. 그러나, 제6c, 6d도에 도시한 바와 같이 복사용지(P) 2매가 롤(20)(22) 사이에 끼이는 경우에 복사용지(P)와 급지롤(20), 복사용지(P)와 분리롤(22) 및 상하측 복사용지(P)사이의 마찰력이 각각 F1, F2, F3이고, 그들 관계가 F1＞ F2＞F3의 관계를 만족하도록 설정됨과 아울러 스프링(23)과 분리롤(22)사이의 마찰력(F4)이 F3보다 크도록 설정되어 있다면 (실제로 본 고안은 이러한 조건이 만족되도록 제작되어진다) 상하측 복사용지(P)사이에는 슬립이 일어나면서 축(11)의 회전력이 스프링(23)을 통하여 분리롤(22)에 전달됨에 따라 분리롤(22)이 축(11)과 같은 방향으로 즉, 급지롤(20)과는 역방향으로 회전하게 되어 2매 복사용지(P)중 하측 복사용지(P)가 "가"의 역방향으로 밀리게 되므로 2매 급지가 방지된다.Hereinafter, referring to FIG. 6, the operation of the feed roll 20 and the separation roll 22 will be described. As shown in FIGS. 6A and 6B, the copying is performed between the feed roll 20 and the separation roll 22. When the paper P is not inserted or when only one copy paper P is inserted, the paper feed roll 20 and the separation roll 22 are rotated in the solid line direction by the frictional force. In the state, the copying paper P is transferred in the direction of " However, as shown in Figs. 6C and 6D, when two sheets of copy paper P are sandwiched between the rolls 20 and 22, the copy paper P, the paper feed roll 20, the copy paper P and The friction force between the separating roll 22 and the upper and lower copy papers P is F 1 , F 2 , and F 3 , respectively, and their relation is set to satisfy the relationship of F 1 > F 2 > F 3 , and the spring 23 ) And the frictional force (F 4 ) between the separation roll 22 is set to be greater than F 3 (actually, the present invention is designed to satisfy these conditions). A slip occurs between the upper and lower copy papers (P). As the rotational force of the shaft 11 is transmitted to the separating roll 22 through the spring 23, the separating roll 22 rotates in the same direction as the shaft 11, that is, in the opposite direction to the feed roll 20. Since the lower copy paper P of the two copy paper P is pushed in the reverse direction of " ga ", feeding of two sheets is prevented.

한편, 상기한 바와 같이 복사용지(P)가 급지되면 통상의 복사기와 같이 복사가 행하여져 배출되며, 복사가 종료된 후에는 구동기어(18)가 정지하고 구동기어(32)가 제3도에서 시계방향으로 회전하여 종동기어(33)와 캠(34)이 반시계방향으로 함께 회전하게 되며 이와 같이 캠(34)이 회전하면 캠(34)의 원호면과 떨어져 있던 캠레버(35)가 캠(34)의 원호면과 접촉되면서 시계방향으로 회전하고 이에따라 축(13)과 연결구(27)가 시계방향으로 함께 회전하여 연결구(27)에 축착된 픽업롤(28)이 상승하여 카세트(36)위의 복사용지(P)로 부터 떨어지게 되고, 구동기어(32)도 정지한다.On the other hand, when the copy paper P is fed as described above, copying is carried out and discharged like a normal copying machine. After copying is completed, the driving gear 18 is stopped and the driving gear 32 is clocked in FIG. Direction, the driven gear 33 and the cam 34 rotate together in the counterclockwise direction. When the cam 34 rotates in this way, the cam lever 35 which is separated from the circular arc surface of the cam 34 is cam ( 34 and rotates in the clockwise direction in contact with the circular arc surface, and accordingly the shaft 13 and the connector 27 is rotated clockwise together to raise the pick-up roll 28 pinched on the connector 27 to raise the cassette 36 From the copy paper P, and the drive gear 32 is also stopped.

상술한 바와 같은 본 고안은, 중, 고속 복사에서 복사용지의 2매 급지가 효과적으로 방지되고 급지카세트 내부의 압축스프링의 피로현상으로 인한 미급지등을 방지할 수 있으며 분리조의 동작상태 미비로 인하여 급지가 불량하게 되는 결함등을 방지할 수 있다.As described above, the present invention can effectively prevent the feeding of two sheets of copy paper in medium and high-speed copying, and can prevent the feeding of paper due to the fatigue phenomenon of the compression spring inside the paper feeding cassette. Defects that become poor can be prevented.

Claims (1)

축(11)의 단부에 급지롤(20)을 고정하고, 축(12)의 단부에 아버(21)를 고정하는 동시에 분리롤(22)을 유착하여 아버(21)와 분리롤(22)축의 원통부(21a)(22a)에 스프링(23)을 감고, 축(11)(12)의 일측부에 고정한 스프로켓(11')(12')에 체인(19)을 연결하고, 축(11)의 단부에 고정한 종동기어(17)에는 구동기어(18)를 교합시키며, 또한 축(13)에 고정한 연결구(27)에는 픽업롤(28)이 일단부에 고정된 축(29)을 축착하고, 축(12)의 회전력을 풀리(24)(25)(30)와 타이밍벨트(26)(31)로 전달하여 픽업롤(28)이 함께 회전하게 하는 한편, 축(15)(16)에는 서로 맞물리는 구동기어(32)와 종동기어(33)을 고정하는 종동기어(33)에 고정한 캠(34)에는 축(13)의 단부에 고정한 캠레버(35)를 접촉시켜 구성함을 특징으로 하는 복사기의 급지장치.The feed roll 20 is fixed to the end of the shaft 11, the arbor 21 is fixed to the end of the shaft 12, and the separation roll 22 is adhered to each other so that the arbor 21 and the separation roll 22 shafts are separated. The spring 23 is wound around the cylindrical portions 21a and 22a, and the chain 19 is connected to the sprockets 11 'and 12' fixed to one side of the shafts 11 and 12, and the shaft 11 The drive gear 18 is engaged with the driven gear 17 fixed to the end of the shaft, and the shaft 29 fixed with one end of the pick-up roll 28 is attached to the connector 27 fixed to the shaft 13. The rotational force of the shaft 12 is transmitted to the pulleys 24, 25, 30 and the timing belts 26, 31 so that the pick-up rolls 28 rotate together, while the shafts 15 and 16 each other. The cam 34 fixed to the driven gear 33 which fixes the driving gear 32 and the driven gear 33 is made to contact the cam lever 35 fixed to the end part of the shaft 13, It is characterized by the above-mentioned. Paper feeder in the copier.
KR2019870016252U 1987-09-24 1987-09-24 Sheet supplying device of copying machine KR900010230Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019870016252U KR900010230Y1 (en) 1987-09-24 1987-09-24 Sheet supplying device of copying machine

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Application Number Priority Date Filing Date Title
KR2019870016252U KR900010230Y1 (en) 1987-09-24 1987-09-24 Sheet supplying device of copying machine

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KR890007407U KR890007407U (en) 1989-05-16
KR900010230Y1 true KR900010230Y1 (en) 1990-11-05

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