KR850001059B1 - Paper sheet feeding device for copying machine - Google Patents

Paper sheet feeding device for copying machine Download PDF

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Publication number
KR850001059B1
KR850001059B1 KR1019810004580A KR810004580A KR850001059B1 KR 850001059 B1 KR850001059 B1 KR 850001059B1 KR 1019810004580 A KR1019810004580 A KR 1019810004580A KR 810004580 A KR810004580 A KR 810004580A KR 850001059 B1 KR850001059 B1 KR 850001059B1
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KR
South Korea
Prior art keywords
paper
tray
copying machine
load
feeding device
Prior art date
Application number
KR1019810004580A
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Korean (ko)
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KR830007302A (en
Inventor
요시오 나까조
유우지 아끼요시
Original Assignee
후지 제록스 가부시끼 가이샤
고바야시 요오다로
Priority date (The priority date 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 date listed.)
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Application filed by 후지 제록스 가부시끼 가이샤, 고바야시 요오다로 filed Critical 후지 제록스 가부시끼 가이샤
Publication of KR830007302A publication Critical patent/KR830007302A/en
Application granted granted Critical
Publication of KR850001059B1 publication Critical patent/KR850001059B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/12—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising spring

Abstract

In proportion to the decrease of paper during paper feeding, the movable table in the paper-feed cassette is raised vertically by a driving device. A load compensator is established at the movable table to maintain a uniform load on the driving device regardless of the quantity of paper resting on the movable table.

Description

복사기등의 급지장치Paper feeders such as copiers

제1도 및 제2도는 종래의 급지장치의 설명도.1 and 2 are explanatory views of a conventional paper feeder.

제3도 및 제4도는 본 발명의 일 실시예를 표시하는 설명도.3 and 4 are explanatory diagrams showing an embodiment of the present invention.

제5도 내지 제9도는 다른 실시예를 표시하는 설명도.5 to 9 are explanatory diagrams showing another embodiment.

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

3 : 급지쟁반 4 : 용지3: paper tray 4: paper

본 발명은 복사기등에 사용하는 급지쟁반의 개량에 관한 것이다.The present invention relates to an improvement of the paper feed tray for use in a copying machine and the like.

종래 복사기등에 있어서 급지에 의하여 급지쟁반상의 용지가 감소하는데 따라 급지쟁반이 상승하는 형식의 급지장치에 있어서는 급지쟁반을 상하동하는 구동원의 부하가 용지의 양에 의하여 변한다. 이때문에 제1도에 표시한 바와 같이 급지쟁반(a)상의 용지(b)의 양이 많을 때에 (h)였든 오우버런(overrun)량이 용지 b의 양이 감소하는데 따라 제2도 h'와 같이 증가하여 용지의 주행성능을 저하시키 종이가 막히는 원인이 되는 등의 불편이 있었다.In a paper feeder of a type in which a paper tray is raised as paper is reduced by paper feeding in a conventional copier or the like, the load of the driving source for moving the paper tray up and down is changed by the amount of paper. Therefore, as shown in FIG. 1, when the amount of paper (b) on the paper feed tray (a) is large, the amount of overrun (h) is reduced as the amount of paper b decreases. There was an inconvenience such as increase of the paper, lowering the running performance of the paper, causing the paper to become clogged.

본 발명은 그와 같은 불편을 개선하는 목적으로 된 것으로서 급지쟁반상의 용지의 양이 변화하여도 오우버런량이 일정하게 되게 한 복사기등의 급지장치를 제공하여 용지의 주행성능을 향상시켜 종이가 막히는 것을 방지하고저 한 것이다.SUMMARY OF THE INVENTION The present invention has been made to improve such inconvenience, and provides a paper feeder such as a copying machine in which an overrun amount is made constant even when the amount of paper on the paper tray is changed, thereby improving the running performance of the paper so that the paper is blocked. To prevent it.

이하 본 발명은 제3도 이하에 표시하는 일 실시예에 의하여 상술하면 도면에 있어서 (1)은 복사기등에 설치된 이 장치의 본체로서 외부틀(2)과 이 외부틀(2)내에 설치된 급지쟁반(3)으로 되고 상기습지쟁반(3)은 도시하지 않은 구동수단에 의하여 권상벨트(10)를 거쳐서 상하동되게 되어 있다. (4)는 상기급지쟁반(3)상에 수용된 용지로서 급지쟁반(3)의 상방에 설치된 급지롤러(5)에 의하여 상측부터 1매씩 반송면 A에 따라서 급지되게 되어 있는 동시에 급지에 수반하여 용지(4)가 감소하면 도시하지 았은 구동수단에 의하여 급지쟁반(3)이 상승된다.Hereinafter, the present invention will be described in detail with reference to an embodiment shown in FIG. 3 or less. In the drawing, reference numeral 1 denotes a main body of the apparatus installed in a copying machine, etc. 3) and the wet paper tray 3 is moved up and down via the hoist belt 10 by a driving means (not shown). (4) is a sheet accommodated on the paper feed tray 3, which is fed along the conveying surface A one by one from the top by a paper feed roller 5 provided above the paper feed tray 3, and is accompanied by paper feeding. When (4) decreases, the paper feed tray 3 is raised by the driving means, not shown.

한편 (6)은 부하보정장치이고 예를들면 인장스프링(7)에 의하여 구성되어 있다. 인장스프링(7)의 일단은 외부틀(2)의 저부에 고정되어 있는 동시에 타단은 외부틀(2) 저부에 지지된 플리(8)를 우회하는 와이어(9)의 일단에 결착되어 있다. 그리고 와이어(9)의 타단은 상기급지쟁반(3)의 저면에 고착되어서 급지쟁반(3)이 상승함에 따라 하방향으로의 힘을 증대하여 용지(4) 저감에 수반하는 부하의 감소를 보상하게 되어있다.On the other hand, (6) is a load compensating device, and is comprised by the tension spring 7, for example. One end of the tension spring 7 is fixed to the bottom of the outer frame 2 while the other end is attached to one end of the wire 9 bypassing the pliers 8 supported on the bottom of the outer frame 2. And the other end of the wire (9) is fixed to the bottom surface of the paper feed tray (3) to increase the force in the downward direction as the paper feed tray (3) is raised to compensate for the reduction in load accompanying the paper (4) reduction It is.

그리고 도시하지 않은 복사기등에 의하여 복사가 행하여질때마다 급지쟁반(3) 상의 용지(4)가 상측부터 급지되어 급지에 수반하여 용지(4)가 감소하면 도시하지 았은 구동원에 의하여 급지쟁반(3)이 상승된다. 이때 급지쟁반(3) 및 쟁반상의 용지(4)의 상승에 수반하는 관성에 의하여 최상부의 용지(4)의 상면이 반송면 A부터 상승하는 오우버런 h가 생긴다. 종래에서는 이 오우버런 h는 구동원에 가하는 부하가 감소하면 크게 되는 경향이 있었지만 본 발명에서는 부하보정장치(6)를 설치하여 급지쟁반(3)상의 용지(4)가 감소하여도 구동원에 가하는 부하를 일정하게 하였으므로 제4도에 표시한 바와 같이 급지쟁반(3)상의 용지(4)가 적게 되어도 오우버런양 h는 용지(4)의 주행성능이 얻어지게 된다.Each time copying is performed by a copying machine or the like not shown, the paper 4 on the paper feeding tray 3 is fed from the upper side and the paper 4 decreases along with the paper feeding tray 3 by a driving source not shown. Is raised. At this time, an overrun h occurs in which the upper surface of the uppermost paper 4 rises from the conveying surface A due to the inertia accompanying the paper feeding tray 3 and the paper 4 on the tray. In the past, this overrun h tended to become large when the load on the drive source was decreased. However, in the present invention, the load correction device 6 is provided to provide a load to the drive source even when the paper 4 on the paper feed tray 3 is reduced. As shown in FIG. 4, even if the paper 4 on the paper feed tray 3 is reduced, the overrun amount h achieves the running performance of the paper 4, as shown in FIG.

또 제5도 및 제6도는 부하보정장치(6)의 다른 실시예를 표시한 것으로서 외부틀(2)의 저부와 급지쟁반(3)의 저부간에 복수의 인장스프링(11)을 경사 혹은 수직으로 설치하여도 좋다. 또 제7도에 표시한 바와같이 압축스프링(12)이나 제 8도에 표시한 바와 같이 소용돌이 스프링(13)을 이용하여 급지쟁반(3)을 하방향으로 힘을 가하여도 좋고 더우기 제 9도에 표시한 바와 같이 외부틀(2)의 상부와 급지쟁반(3)의 사이에 압축스프링(14)을 설치하게 하여도 좋다.5 and 6 show another embodiment of the load compensator 6 in which the plurality of tension springs 11 are inclined or vertically between the bottom of the outer frame 2 and the bottom of the paper feed tray 3. You may install it. In addition, as shown in FIG. 7, the feed tray 3 may be applied downward using the vortex spring 13 as shown in the compression spring 12 or 8. As shown, the compression spring 14 may be provided between the upper part of the outer frame 2 and the paper feed tray 3.

본 발명은 이상 상술한 바와 같이 급지쟁반상의 용지가 감소하여도 급지쟁반을 상하동하는 구동원에 가하는 부하가 일정하게 되게 급지쟁반에 부하보정 장치를 설치한 것에서부터 급지쟁반 상승에 수반하는 오우버런양을 항상 일정하게 할 수 있어 이것에 의하여 용지의 주행성능의 향상이 도모되는 동시에 이것에 수반하여 종이가 막히는 것 등도 확실히 방지할 수 있게 된다.As described above, the amount of overburden accompanying the rising of the paper tray is increased from the installation of the load correction device to the paper tray so that the load applied to the driving source for moving the paper tray up and down is constant even if the paper on the paper tray is reduced as described above. This can be made constant at all times, thereby improving the running performance of the paper and at the same time preventing the paper from being clogged with this.

Claims (1)

급지에 의하여 용지(4)가 감소하는데 수반하여 용지(4)를 재치한 급지쟁반(3)을 적절히 구동수단에 의하여 상승시키는 것에 있어서 상기급지쟁반(3)상의 용지(4)의 양이 변화하여도 구동수단에 가하는 부하가 일정하게 되게 부하보정장치(6)를 급지쟁반(3)에 설치하여 되는 복사기 등의 급지장치.As the paper 4 decreases due to the feeding, the amount of the paper 4 on the paper feeding tray 3 changes in raising the paper feeding tray 3 on which the paper 4 is placed by the driving means. A paper feeder such as a copier, in which a load correction device (6) is provided in the paper feed tray (3) so that the load applied to the drive means is constant.
KR1019810004580A 1980-11-26 1981-11-26 Paper sheet feeding device for copying machine KR850001059B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP55165273A JPS5790331A (en) 1980-11-26 1980-11-26 Paper feeder for copier etc
JP80-165273 1980-11-26
JP165273 1980-11-26

Publications (2)

Publication Number Publication Date
KR830007302A KR830007302A (en) 1983-10-19
KR850001059B1 true KR850001059B1 (en) 1985-07-25

Family

ID=15809193

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810004580A KR850001059B1 (en) 1980-11-26 1981-11-26 Paper sheet feeding device for copying machine

Country Status (3)

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JP (1) JPS5790331A (en)
KR (1) KR850001059B1 (en)
PH (1) PH24566A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006168835A (en) * 2002-01-31 2006-06-29 Canon Inc Sheet feeder, and image forming device provided with the same
JP7204285B2 (en) * 2019-01-31 2023-01-16 理想科学工業株式会社 Media feeder

Also Published As

Publication number Publication date
PH24566A (en) 1990-08-03
JPS5790331A (en) 1982-06-05
KR830007302A (en) 1983-10-19
JPH0214249B2 (en) 1990-04-06

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