KR20010058635A - Cover damping apparatus for electrophotograpic printer - Google Patents
Cover damping apparatus for electrophotograpic printer Download PDFInfo
- Publication number
- KR20010058635A KR20010058635A KR1019990065988A KR19990065988A KR20010058635A KR 20010058635 A KR20010058635 A KR 20010058635A KR 1019990065988 A KR1019990065988 A KR 1019990065988A KR 19990065988 A KR19990065988 A KR 19990065988A KR 20010058635 A KR20010058635 A KR 20010058635A
- Authority
- KR
- South Korea
- Prior art keywords
- cover
- hinge bracket
- main frame
- damper
- main
- Prior art date
Links
- 238000013016 damping Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims 4
- 230000035939 shock Effects 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/12—Guards, shields or dust excluders
- B41J29/13—Cases or covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/22—Paper-carriage guides or races
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
- B41J13/0045—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material concerning sheet refeed sections of automatic paper handling systems, e.g. intermediate stackers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/74—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor with special means to maintain character-spacing or back- spacing elements in engagement during case-shift or like movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16505—Caps, spittoons or covers for cleaning or preventing drying out
- B41J2/16508—Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/02—Framework
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/12—Guards, shields or dust excluders
Landscapes
- Electrophotography Configuration And Component (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
Description
본 발명은 전자사진방식 인쇄기의 커버 댐핑장치에 관한 것으로, 보다 상세하게는 양면인쇄를 위한 용지반전수단이 구비된 인쇄기 커버의 개폐시 그 커버의 급작스런 회동을 억제시키기 위한 전자사진방식 인쇄기의 커버 댐핑장치에 관한 것이다.The present invention relates to a cover damping apparatus for an electrophotographic printing press, and more particularly, to cover damping of an electrophotographic printing press for suppressing sudden rotation of the cover when opening and closing a printing press cover having a paper reversing means for duplex printing. Relates to a device.
일반적으로 칼라 레이저 프린터나 복사기와 같은 습식 전자사진방식 인쇄기에는, 도 1에 도시된 바와 같이, 무한궤도로 이루어진 감광매체(10)를 구비한 벨트유닛(11)과, 상기 감광매체(10)에 소정 화상을 현상하기 위한 현상유닛(12)과, 현상된 감광매체(10) 상에 잔류하는 액상의 캐리어를 건조시키는 건조유닛(13)과, 감광매체(10)에 현상된 화상을 용지(P)에 전사시키기 위한 전사유닛(15)이 구비된다. 이러한 유닛들(11,12,13,15) 각각은 통상 여러 개의 부품이 조립되어 한 몸체로 취급되며, 인쇄기 본체(20) 내에 착탈가능하게 설치된다. 따라서, 상기 유닛들(11∼15)은 수리 및 교환시에도 그 유닛 자체가 본체(20)로부터 분리 및 개방되어 취급된다. 이를 위해 본체(20)의 측벽 및 전면벽에는 상기 유닛들(11,12,13)의 착탈을 위한 개방구(22)를 개폐시키는 측면도어(21) 및 전면도어(미도시)가 설치된다. 또한, 본체(20)의 커버(23)도 전사유닛(15)을 착탈 및 개방시킬 수 있도록 상하로 개폐가능하게 설치된다.In general, a wet electrophotographic printing machine such as a color laser printer or a copying machine includes a belt unit 11 having a photosensitive medium 10 made of an endless track and a photosensitive medium 10 as shown in FIG. 1. The developing unit 12 for developing a predetermined image, the drying unit 13 for drying the liquid carrier remaining on the developed photosensitive medium 10, and the image developed on the photosensitive medium 10 are printed on paper (P). ) Is provided with a transfer unit 15 for transferring. Each of these units 11, 12, 13, and 15 is typically assembled into several parts and treated as a body, and is detachably installed in the printer body 20. Accordingly, the units 11 to 15 are handled while the unit itself is separated and opened from the main body 20 even during repair and replacement. To this end, side doors 21 and front doors (not shown) for opening and closing the openings 22 for attaching and detaching the units 11, 12, 13 are installed on the side walls and the front walls of the main body 20. In addition, the cover 23 of the main body 20 is also provided to be opened and closed up and down so that the transfer unit 15 can be detached and opened.
그런데, 상기 구성에 있어서, 상기 커버(23)가 가상선으로 도시된 바와 같은 상태로 오픈되었을 경우에, 그 커버(23)는 힌지(H)에 의해서만 지지되므로 불안정한 상태가 된다. 때문에 작은 충격에 의해서도 커버(23)는 닫히게 되며, 닫힐 때 그 자중에 의해 급속하게 떨어지게 되므로, 전사유닛(15), 본체(20) 및 커버(23) 자체에 가속도에 의한 심한 충격이 가해져 파손될 수 있다.By the way, in the said structure, when the cover 23 is opened in the state shown by an imaginary line, the cover 23 is supported only by the hinge H, and it will be in an unstable state. Therefore, the cover 23 is closed even by a small impact, and when the cover 23 is closed, the cover 23 is rapidly dropped by its own weight, and the transfer unit 15, the main body 20, and the cover 23 itself may be damaged due to severe impact due to acceleration. have.
또한, 사용자가 전사유닛(15)에 인접한 용지이송경로(25) 상에서 잼(jam) 용지를 손으로 제거하는 작업중에 커버(23)가 닫힐 경우, 사용자의 손이 다칠 위험마저 있다. 특히, 양면인쇄를 위해서 전사유닛(15)을 통과한 용지(P)를 반전시키기 위한 반전장치 즉, 듀플렉스(duplex)(27)가 구비될 경우에는 더욱 심각하다. 즉, 상기 듀플렉스(27)는 잼용지 제거, 수리 및 설치공간 등의 고려사항에 따라 실질적으로 커버(15)에 설치되는 것이 바람직한데, 이 경우 그 듀플렉스(27)는 이송롤러(27a) 및 구동원(미도시) 등의 부품을 구비하므로 커버(23)의 무게를 상당히 증가시키게 된다. 따라서, 커버(23)의 무게는 대략 수 kg에 달하게 되어 커버(23)의 개폐동작에 의한 충격은 더욱 가중되는 문제점이 있다.In addition, if the cover 23 is closed while the user removes jam paper by hand on the paper transfer path 25 adjacent to the transfer unit 15, there is a risk of injury to the user's hand. In particular, when a reversing device for reversing the paper P passing through the transfer unit 15 for duplex printing, that is, a duplex 27, is more serious. That is, the duplex 27 is preferably installed on the cover 15 in accordance with considerations such as jam paper removal, repair and installation space, in which case the duplex 27 is the transfer roller 27a and the drive source. Since a component such as (not shown) is provided, the weight of the cover 23 is significantly increased. Therefore, the weight of the cover 23 is approximately several kg, so that the impact caused by the opening and closing operation of the cover 23 has a problem that is further weighted.
본 발명은 상기와 같은 문제점을 해결하기 위해 창안된 것으로, 인쇄기 커버의 개폐동작시 충격을 완화시킬 수 있도록 된 전자사진방식 인쇄기의 커버 댐핑장치를 제공하는데 그 목적이 있다.The present invention was devised to solve the above problems, and an object thereof is to provide a cover damping apparatus for an electrophotographic printing press that can mitigate an impact during an opening and closing operation of a printing press cover.
도 1은 일반적인 전자사진방식 인쇄기를 나타내 보인 개략적인 구성도.1 is a schematic configuration diagram showing a general electrophotographic printing press.
도 2는 본 발명의 실시예에 따른 커버 댐핑장치가 채용된 전자사진방식 인쇄기를 개략적으로 나타내 보인 구성도.Figure 2 is a schematic view showing an electrophotographic printing machine employing a cover damping device according to an embodiment of the present invention.
도 3은 도 2의 요부를 발췌하여 나타내 보인 요부사시도.Figure 3 is a yabu perspective view showing an extract of the main portion of FIG.
도 4는 도 3의 분리사이도.4 is a diagram between the separation of FIG.
도 5는 제1로킹레버가 로킹해제된 상태를 나타내 보인 개략적인 정면도.Figure 5 is a schematic front view showing a state in which the first locking lever is unlocked.
도 6은 커버가 로킹해제된 상태를 나타내 보인 개략적인 정면도.6 is a schematic front view showing a state in which the cover is unlocked.
도 7은 커버가 제1구간에서 오픈된 상태를 나타내 보인 개략적인 정면도.7 is a schematic front view showing a state in which the cover is opened in the first section.
< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
30..인쇄기 31..메인프레임30. Printer 31. Main frame
32..전사유닛 33.지지브라켓32. Transfer Unit 33. Support Bracket
34..고정브라켓 35..제2로킹레버34 .. Fixed bracket 35 .. 2nd locking lever
40..커버 41..커버프레임40. Cover 41. Cover frame
43..손잡이 50..힌지브라켓43. Handle 50. Hinge bracket
53..보조댐퍼 60..메인댐퍼53..Auxiliary damper 60..Main damper
61..피스톤부재 63..유압 실린더부재61. Piston member 63. Hydraulic cylinder member
상기 목적을 달성하기 위한 본 발명에 따른 전자사진방식 인쇄기의 커버 댐핑장치는, 인쇄기의 메인프레임과; 상기 인쇄기의 상부를 개폐시키도록 상기 메인프레임에 힌지결합되는 커버와; 일단이 상기 메인프레임에 힌지결합되는 힌지브라켓; 및 양단이 상기 커버 및 상기 힌지브라켓의 타단 각각에 힌지결합되며, 상기 커버의 개폐시 피스톤의 왕복운동에 의해 상기 커버에 댐핑력을 제공하는 메인댐퍼;를 포함하여, 상기 커버의 개폐시, 상기 커버의 개폐동작이 상기 메인댐퍼의 댐핑력 및 상기 힌지브라켓의 회동에 의해 단계적으로 이루어져 충격이 완화되도록 된 것을 특징으로 한다.Cover damping device for an electrophotographic printing press according to the present invention for achieving the above object, the main frame of the printer; A cover hinged to the main frame to open and close the upper portion of the printer; A hinge bracket having one end hinged to the main frame; And a main damper having both ends hinged to each of the other ends of the cover and the hinge bracket, and providing a damping force to the cover by a reciprocating motion of a piston when opening and closing the cover. The opening and closing operation of the cover is made in a step by the damping force of the main damper and the hinge bracket is characterized in that the shock is alleviated.
여기서, 상기 커버는, 상기 메인프레임 및 메인댐퍼 각각에 연결되는 커버프레임과; 상기 인쇄기 내의 전사유닛에서 일면이 인쇄된 용지를 양면인쇄가 가능하도록 반전시켜 상기 전사유닛으로 재 공급하기 위한 용지반전수단;을 포함하는 것이 바람직하다.The cover may include a cover frame connected to each of the main frame and the main damper; And a paper inverting means for reversing the paper on which one side is printed on the transfer unit in the printing machine so as to enable double-sided printing and resupplying it to the transfer unit.
또한, 양단이 상기 힌지브라켓 및 메인프레임 각각에 탄성변형 가능하도록 연결되어, 상기 힌지브라켓의 자유로운 회동을 억제시키도록 탄성력을 제공하는 보조댐퍼;를 더 포함하는 것이 바람직하다.In addition, both ends are connected to each of the hinge bracket and the main frame so as to be elastically deformable, and further comprising an auxiliary damper for providing an elastic force to suppress the free rotation of the hinge bracket.
이하 첨부된 도면을 참조하여 본 발명의 실시예에 따른 전자사진방식 인쇄기의 커버 댐핑장치를 자세히 설명하기로 한다.Hereinafter, a cover damping apparatus of an electrophotographic printing press according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 실시예에 따른 커버 댐핑장치가 채용된 전자사진방식 인쇄기를 나타낸 개략적인 도면이고, 도 3은 도 2의 요부를 발췌하여 나타내 보인 요부사시도이며, 도 4는 도 3의 분리사시도이다.2 is a schematic view showing an electrophotographic printing press employing a cover damping device according to an embodiment of the present invention, Figure 3 is a perspective view showing the main portion of Figure 2 extracted, Figure 4 is a separation of FIG. Perspective view.
도 2 내지 도 4를 참조하면, 본 발명의 실시예에 따른 전자사진방식 인쇄기의 커버 댐핑장치는, 인쇄기(30)의 메인프레임(31)과, 상기 인쇄기(30)의 상부를 개폐시키기 위한 커버(40)와, 상기 메인프레임(31)에 힌지결합되는 힌지브라켓(50) 및 메인댐퍼(60)를 구비한다.2 to 4, a cover damping device for an electrophotographic printing press according to an embodiment of the present invention includes a cover for opening and closing a main frame 31 of the printing press 30 and an upper portion of the printing press 30. 40 and a hinge bracket 50 and a main damper 60 hinged to the main frame 31 are provided.
상기 메인프레임(31)은 인쇄기(30)의 기본 골격에 대당되는 것으로, 그 외측에는 플라스틱류의 외관이 결합된다.The main frame 31 corresponds to the basic skeleton of the printing machine 30, the outside of which is combined with the appearance of plastics.
상기 커버(40)는 인쇄기(30) 내의 전사유닛(32) 상부에 위치되며, 일단이 메인프레임(31)에 마련되는 힌지축(31a)을 중심으로 회동되도록 결합된다. 이러한 커버(40)는 기본 골격에 대당되는 커버프레임(41)과, 용지반전수단을 구비한다. 상기 커버프레임(41)은 실질적으로 상기 힌지축(31a)에 결합되며, 커버프레임(41)의 외측에는 인쇄기의 외관이 결합된다. 또한, 커버프레임(41)에는 커버(40)를 로킹시키는 제1로킹레버(43)가 회동가능하게 설치된다. 상기 제1로킹레버(43)의 일단에는 인쇄기의 외관 밖으로 노출되는 손잡이(43a)가 측면으로 돌출되게 형성된다. 또한, 제1로킹레버(43)의 타단에는 메인프레임(31)에 고정되는 소정 지지브라켓(33)에 형성된 로킹돌기(33a)에 로킹결합되는 로킹홈(43b)이 형성된다. 따라서, 커버(40)가 닫힌상태에서 로킹홈(43b)에 로킹돌기(33a)가 걸리면 커버(40)의 오픈이 방지된다. 반면, 제1로킹레버(43)의 손잡이(43a)를 상방으로 회전시키면 로킹홈(43b)이 로킹돌기(35a)로부터 해제됨으로서 커버(40)의 오픈이 가능한 상태가 된다.The cover 40 is positioned above the transfer unit 32 in the printer 30, and one end thereof is coupled to rotate about a hinge shaft 31a provided in the main frame 31. The cover 40 includes a cover frame 41 corresponding to the basic frame, and a sheet reversing means. The cover frame 41 is substantially coupled to the hinge shaft (31a), the outer side of the cover frame 41 is coupled to the appearance of the printing machine. In addition, the cover frame 41 is rotatably provided with a first locking lever 43 for locking the cover 40. One end of the first locking lever 43 is formed to protrude to the side the handle 43a is exposed to the outside of the printer. In addition, a locking groove 43b is formed at the other end of the first locking lever 43, which is locked to the locking protrusion 33a formed on the predetermined support bracket 33 fixed to the main frame 31. Therefore, when the locking protrusion 33a is caught by the locking groove 43b in the closed state of the cover 40, the opening of the cover 40 is prevented. On the other hand, when the handle 43a of the first locking lever 43 is rotated upward, the locking groove 43b is released from the locking protrusion 35a, thereby opening the cover 40.
한편, 상기 용지반전수단은 본 실시예에서는 설명의 편의상 도시되지는 않았으나, 도 1에서 개략적으로 설명한 바와 같이, 복수의 용지 이송롤러(25) 및 구동원 등을 포함하는 예컨대 듀플렉스(duplex)로서, 커버(30) 중량의 상단 부분을 차지하게 된다.On the other hand, the paper reversing means is not shown for convenience of description in this embodiment, but as outlined in FIG. 1, for example, as a duplex including a plurality of paper feed rollers 25 and a driving source, the cover includes a cover. 30 will occupy the upper portion of the weight.
상기 힌지브라켓(50)의 제1단은, 메인프레임(31)에 고정된 고정브라켓(34)에 결합되는, 축(51)에 힌지결합된다. 또한, 힌지브라켓(50)의 제2단은 상기 메인댐퍼(60)의 하단에 결합된다. 이 힌지브라켓(50)은, 커버(40)의 오픈동작을 커버(40)가 소정각도 열리는 제1구간(A)과, 제1구간(A)을 제외한 나머지 제2구간(B)으로 각각 구분하였을 때, 상기 제2구간(A)의 동작을 위해 마련된 것이다. 즉, 힌지브라켓(50)은, 커버(40)가 닫힐 때 메인프레임(31)에 돌출형성된 스토퍼(31b)에 걸림으로서 제1구간(A)에서의 회동이 억제된다.The first end of the hinge bracket 50 is hinged to the shaft 51, which is coupled to the fixed bracket 34 fixed to the main frame 31. In addition, the second end of the hinge bracket 50 is coupled to the lower end of the main damper (60). The hinge bracket 50 divides the opening operation of the cover 40 into a first section A in which the cover 40 is opened at a predetermined angle, and a second section B except for the first section A. FIG. When it is, it is provided for the operation of the second section (A). That is, the hinge bracket 50 is locked by the stopper 31b protruding from the main frame 31 when the cover 40 is closed, thereby preventing rotation of the hinge bracket 50 in the first section A. FIG.
또한, 상기 힌지브라켓(50)에는 보조댐퍼(53)가 연결된다. 상기 보조댐퍼(53)는 탄성변형 가능한 코일스프링인 것이 바람직하다. 이 보조댐퍼(53)의 일단은 힌지브라켓(50)의 상측 중앙부에 걸리고, 타단은 메인프레임(31)의 소정 위치에 연결된다. 이러한 보조댐퍼(53)의 탄성력에 의해 힌지브라켓(50)의 자유로운 회동이 억제되며, 커버(40)가 제2구간(B)에서 급격하게 회동되는 것이 방지된다. 또한, 상기 보조댐퍼(53)를 대신해서 도시되지 않은 토션스프링이 상기 축(51)에 설치될 수도 있다.In addition, an auxiliary damper 53 is connected to the hinge bracket 50. The auxiliary damper 53 is preferably a coil spring capable of elastic deformation. One end of the auxiliary damper 53 is caught by the upper center portion of the hinge bracket 50, and the other end is connected to a predetermined position of the main frame 31. Free rotation of the hinge bracket 50 is suppressed by the elastic force of the auxiliary damper 53, and the cover 40 is prevented from being suddenly rotated in the second section (B). In addition, a torsion spring (not shown) may be installed in the shaft 51 in place of the auxiliary damper 53.
상기 메인댐퍼(60)는 상단이 커버프레임(41)에 힌지결합되는 피스톤부재(61)와, 상기 피스톤부재(61)가 끼워져서 상대적으로 왕복이동되는 유압 실린더부재(63)를 구비한다. 상기 유압 실린더부재(63)의 하단은 힌지브라켓(50)의 제2단에 힌지결합된다. 이러한 구성의 메인댐퍼(60)는 커버(40)의 개폐동작시 상기 제1구간(A)에서 커버(40)에 댐핑력을 제공하도록 설치된 것이다. 이 메인댐퍼(60)는 산업현장에서 널리사용되는 유압댐퍼로서 그 자세한 설명은 생략한다.The main damper 60 includes a piston member 61 having an upper end hinged to the cover frame 41, and a hydraulic cylinder member 63 to which the piston member 61 is fitted and relatively reciprocated. The lower end of the hydraulic cylinder member 63 is hinged to the second end of the hinge bracket (50). The main damper 60 of this configuration is installed to provide a damping force to the cover 40 in the first section A during the opening and closing operation of the cover 40. This main damper 60 is a hydraulic damper widely used in industrial sites, the detailed description thereof will be omitted.
한편, 상기 고정브라켓(34)에는 소정 형상의 걸림부(35a)가 형성된 제2로킹레버(35)가 소정각도 회동되도록 설치된다. 이 제2로킹레버(35)는, 인쇄기의 프린팅동작 중에 커버(40)를 열 수 없도록 제1로킹레버(43)를 로킹시키기 위한 것이다. 따라서, 제1로킹레버(43)의 일측에는 상기 걸림부(35a)에 대응되는 소정형상의 걸림턱(43c)이 마련된다. 이러한 제2로킹레버(35)는 소정의 회동수단에 의해 회동된다. 예를 들어, 제2로킹레버(35)의 타단에 소정의 접촉핀(35b)을 설치하고, 미도시된 캠과 구동원을 구동시켜 메인프레임(31)에 왕복이동가능하게 설치된 슬라이더(미도시)를 상기 접촉핀(35b)에 접촉시킴으로써, 제2로킹레버(35)를 선택적으로 회동시킬 수 있다.On the other hand, the fixing bracket 34 is installed so that the second locking lever 35 having the locking portion 35a of a predetermined shape is rotated by a predetermined angle. The second locking lever 35 is for locking the first locking lever 43 so that the cover 40 cannot be opened during the printing operation of the printer. Therefore, one side of the first locking lever 43 is provided with a locking jaw 43c of a predetermined shape corresponding to the locking portion 35a. This second locking lever 35 is rotated by a predetermined rotating means. For example, a slider (not shown) provided with a predetermined contact pin 35b on the other end of the second locking lever 35 and reciprocally moved to the main frame 31 by driving a cam and a driving source not shown. By contacting the contact pin 35b, the second locking lever 35 can be selectively rotated.
상기 구성을 가지는 본 발명의 실시예에 따른 전자사진방식 인쇄기의 커버 댐핑장치의 동작을 설명하면 다음과 같다.Referring to the operation of the cover damping device of the electrophotographic printing press according to the embodiment of the present invention having the above configuration.
도 5를 참조하면, 인쇄기의 프린팅동작 중에는 걸림부(35a)와 걸림턱(43c)이 맞물리도록 제2로킹레버(35)가 자세고정된다. 따라서, 프린팅동작시에는 제1로킹레버(43)를 회동시킬 수 없게 되어 사용자의 실수에 의해 커버(40)가 열리는 것을 방지할 수 있다. 반면, 용지 잼이 발생하거나 프린팅종료 등에 의해 프린팅동작이 멈추게 되면, 소정의 회동수단에 의해 제2로킹레버(35)의 자세고정이 해제된다. 그러면 제2로킹레버(35)는 자중 또는 회동수단의 동력에 의해 가상선으로 도시된 상태에서 실선으로 도시된 상태로 회동된다. 따라서, 제1로킹레버(43)는 회동가능한 상태가 된다.Referring to FIG. 5, during the printing operation of the printer, the second locking lever 35 is posture fixed so that the locking portion 35a and the locking jaw 43c are engaged. Therefore, during the printing operation, the first locking lever 43 cannot be rotated, thereby preventing the cover 40 from being opened due to a mistake of the user. On the other hand, when the paper jam occurs or the printing operation is stopped by the end of printing or the like, the attitude locking of the second locking lever 35 is released by the predetermined rotating means. Then, the second locking lever 35 is rotated from the state shown in the virtual line to the state shown in the solid line by the power of the own weight or the rotation means. Therefore, the first locking lever 43 is in a rotatable state.
한편, 프린팅동작이 멈춘 상태에서 잼 용지의 제거 및 기타 장치의 수리 등을 위해 커버(40)를 열고자 할 경우에는, 제1로킹레버(43)의 손잡이(43a)를 도 6에 가상선으로 도시 최초상태에서 실선으로 도시된 바와 같이 상방향으로 회동시킨다. 그러면, 제1로킹레버(43)의 하단은 하방으로 회동되고, 로킹홈(43b)이 로킹돌기(33a)로부터 빠져나와서 로킹이 해제된다. 이와 같이 되면, 커버(40)는 움직임이 자유로운 상태가 되어 메인댐퍼(60)의 댐핑력에 의해 소정거리 상승된다. 그리고, 소정거리 상승된 커버(40)를 사용자가 손으로 열어제치면, 도 7에 도시된 바와 같이, 커버(40)는 피스톤부재(61)가 유압 실린더부재(63)로부터 완전히 빠져나올때까지의 제1구간(A) 동안에 메인댐퍼(60)의 댐핑력에 의해 서서히 열리게 된다.On the other hand, when the cover 40 is to be opened in order to remove the jammed paper and repair other devices while the printing operation is stopped, the handle 43a of the first locking lever 43 is moved to the virtual line in FIG. 6. Rotate upward as shown by the solid line in the initial state of the city. Then, the lower end of the first locking lever 43 is rotated downward, and the locking groove 43b is released from the locking protrusion 33a to release the locking. In this case, the cover 40 is free to move and the predetermined distance is increased by the damping force of the main damper 60. Then, when the user opens the cover 40 raised by a predetermined distance by hand, as shown in FIG. 7, the cover 40 is provided until the piston member 61 completely comes out of the hydraulic cylinder member 63. During the first section (A) is gradually opened by the damping force of the main damper (60).
계속해서, 피스톤부재(61)가 완전히 빠져나온 상태에서 커버(40)를 더 열어제치면, 이 때부터는 힌지브라켓(50)이 소정각도 회동됨으로써 커버(40)는 도 2에 도시된 바와 같이 완전히 열리게 된다. 이 때, 커버(40)가 힌지브라켓(50)과 함께 회동되는 제2구간(B)에서는, 보조댐퍼(53)의 탄성변형에 의한 댐핑력에 의해 커버(40)가 급격하게 회동되는 것이 억제된다. 따라서, 커버(40)가 비숙련자에 의해 열리더라고, 그 자중에 의해 급작스럽게 열리는 것이 억제되어 힌지축(31a)과 같이 충격에 약한 부분의 파손을 방지할 수 있다.Subsequently, when the cover 40 is further opened and removed when the piston member 61 is completely pulled out, the hinge bracket 50 is rotated by a predetermined angle from this time, so that the cover 40 is completely as shown in FIG. Will be opened. At this time, in the second section B in which the cover 40 is rotated together with the hinge bracket 50, it is suppressed that the cover 40 is suddenly rotated by the damping force caused by the elastic deformation of the auxiliary damper 53. do. Therefore, even if the cover 40 is opened by an unskilled person, it is suppressed to open suddenly by its own weight, and the damage of the part which is weak to an impact like the hinge shaft 31a can be prevented.
또한, 도 2에 도시된 같이 완전히 열린 상태의 커버(40)는 보조댐퍼(53)에 의해 탄력적으로 지지되므로, 사용자가 실수로 커버(40)를 건드리거나 충격을 주더라도, 커버(40)가 자중에 의해 급격하게 떨어져서 닫히는 것이 억게된다. 따라서,커버(40)를 열어놓은 상태에서 작업자가 전사유닛(32) 또는 인쇄기 내부의 장치를 수리 및 교환할 때, 커버(40)의 급작스런 닫힘에 의한 사고를 예방할 수 있다.In addition, since the cover 40 in the fully opened state as shown in FIG. 2 is elastically supported by the auxiliary damper 53, even if the user accidentally touches or shocks the cover 40, the cover 40 It is suppressed to close and fall sharply by its own weight. Therefore, when the operator repairs and replaces the transfer unit 32 or the device inside the printer while the cover 40 is opened, it is possible to prevent an accident due to the sudden closing of the cover 40.
한편, 커버(40)를 닫을 경우에는, 오픈동작시와 마찬가지로, 제2구간(B)에서는 보조댐퍼(53)의 스프링력에 의해 커버(40)의 회동력이 댐핑되어 커버(40)가 천천히 닫힌다. 이 때에도, 힌지브라켓(50)은 커버(40)와 함께 회동되며, 어느 정도 회동된 힌지브라켓(50)은 그 하측이 스토퍼(31b)에 걸려서 더 이상 회동되지 않게 된다. 힌지브라켓(50)의 회동이 멈춰지면, 이때부터는 피스톤부재(61)가 유압 실린더부재(63)로 삽입됨과 동시에 커버(40)는 천천히 닫히게 된다. 이 때에도, 메인댐퍼(60)의 댐핑력에 의해 커버(40)의 회동가속도는 감속되어 커버(40)가 큰 충격으로 떨어지는 것이 억제된다. 마지막으로, 커버(40)가 거의 닫힌 상태에서 사용자가 손으로 커버(40)를 눌러주면 로킹홈(43b)에 로킹돌기(33a)가 로킹되면서 커버(40)가 완전히 닫히게 된다.On the other hand, when the cover 40 is closed, as in the opening operation, in the second section B, the rotational force of the cover 40 is damped by the spring force of the auxiliary damper 53, so that the cover 40 is slow. Closed. At this time, the hinge bracket 50 is rotated together with the cover 40, and the hinge bracket 50, which is rotated to some extent, is lowered by the stopper 31b so that the hinge bracket 50 is no longer rotated. When the rotation of the hinge bracket 50 is stopped, at this time the piston member 61 is inserted into the hydraulic cylinder member 63 and at the same time the cover 40 is closed slowly. Also at this time, the rotational acceleration of the cover 40 is decelerated by the damping force of the main damper 60, and it is suppressed that the cover 40 falls to a large impact. Finally, when the user presses the cover 40 by hand while the cover 40 is almost closed, the locking protrusion 33a is locked in the locking groove 43b, so that the cover 40 is completely closed.
이상에서 설명한 바와 같은 본 발명에 따른 전자사진방식 인쇄기의 커버 댐핑장치에 따르면, 메인댐퍼 및 보조댐퍼를 설치하여 커버를 2단동작에 의해 개폐시킴으로써 그 동작이 자연스럽고, 개폐시의 충격을 감소시킬 수 있다. 특히, 커버에 용지반전수단과 같은 장치가 설치되어 중량이 커질 경우에, 그 커버의 자중에 의한 커버의 회동가속도를 크게 줄일 수 있게 된다. 따라서, 장치의 안정성 향상 및 사용자의 안전사고 예방에 크게 기여할 수 있다.According to the cover damping device of the electrophotographic printing press according to the present invention as described above, by installing the main damper and the auxiliary damper to open and close the cover by the two-stage operation, the operation is natural, reducing the impact during opening and closing Can be. In particular, when a device such as a sheet reversing means is installed on the cover to increase the weight, the rotational acceleration of the cover due to the weight of the cover can be greatly reduced. Therefore, it can greatly contribute to improving the stability of the device and to prevent the safety accident of the user.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990065988A KR20010058635A (en) | 1999-12-30 | 1999-12-30 | Cover damping apparatus for electrophotograpic printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990065988A KR20010058635A (en) | 1999-12-30 | 1999-12-30 | Cover damping apparatus for electrophotograpic printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20010058635A true KR20010058635A (en) | 2001-07-06 |
Family
ID=19633143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990065988A KR20010058635A (en) | 1999-12-30 | 1999-12-30 | Cover damping apparatus for electrophotograpic printer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20010058635A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60149053A (en) * | 1984-01-13 | 1985-08-06 | Konishiroku Photo Ind Co Ltd | Copying machine |
| KR920018525U (en) * | 1991-03-28 | 1992-10-19 | 주식회사 신도리코 | Upper cover buffer for office equipment |
| KR930000500A (en) * | 1991-06-24 | 1993-01-15 | 원본미기재 | Thioxanthone derivatives, their preparation method and their use |
| JPH05289448A (en) * | 1992-04-07 | 1993-11-05 | Mita Ind Co Ltd | Copying machine |
| JPH07219403A (en) * | 1994-01-28 | 1995-08-18 | Canon Inc | Image forming device |
| JPH08268636A (en) * | 1995-03-31 | 1996-10-15 | Fuji Photo Film Co Ltd | Interlocking mechanism for processor |
| KR19980067214A (en) * | 1997-01-31 | 1998-10-15 | 문대원 | Top cover switchgear of copier |
-
1999
- 1999-12-30 KR KR1019990065988A patent/KR20010058635A/en not_active Application Discontinuation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60149053A (en) * | 1984-01-13 | 1985-08-06 | Konishiroku Photo Ind Co Ltd | Copying machine |
| KR920018525U (en) * | 1991-03-28 | 1992-10-19 | 주식회사 신도리코 | Upper cover buffer for office equipment |
| KR930000500A (en) * | 1991-06-24 | 1993-01-15 | 원본미기재 | Thioxanthone derivatives, their preparation method and their use |
| JPH05289448A (en) * | 1992-04-07 | 1993-11-05 | Mita Ind Co Ltd | Copying machine |
| JPH07219403A (en) * | 1994-01-28 | 1995-08-18 | Canon Inc | Image forming device |
| JPH08268636A (en) * | 1995-03-31 | 1996-10-15 | Fuji Photo Film Co Ltd | Interlocking mechanism for processor |
| KR19980067214A (en) * | 1997-01-31 | 1998-10-15 | 문대원 | Top cover switchgear of copier |
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