KR950001536B1

KR950001536B1 - Sheet-feeding tray

Info

Publication number: KR950001536B1
Application number: KR1019920025423A
Authority: KR
Inventors: 문희열
Original assignee: 주식회사신도리코; 우석형
Priority date: 1992-12-24
Filing date: 1992-12-24
Publication date: 1995-02-25
Also published as: KR940015718A

Abstract

The apparatus for easily changing the paper feeding direction includes a paper feeding tray(2) having a cassette(3) setting the paper, a plate(5) moving the paper forward and backward. To move the plate, plate holes(4,4') formed on both sides of the cassette, a bottom face hole(10) formed on the bottom of the cassette lengthwise, a cassette holder(12) placed on the inside of the bottom face hole movablely and fixing the cassette, a means moving the holder forward and backward, and a means rotating the cassette to move together with the holder.

Description

Feeding device of paper feed tray and its control circuit

제1도는 급지트레이의 사용상태도.1 is a state of use of the feed tray.

제2도는 종래의 급지트레이 사시도.2 is a perspective view of a conventional paper tray.

제3도는 본 발명의 요부 구성도.3 is a main configuration diagram of the present invention.

제4도는 본 발명에 의한 급지트레이 사시도.4 is a perspective view of the paper feed tray according to the present invention.

제5도는 제4도의 요부 단면도.5 is a cross-sectional view of the main portion of FIG.

제6도는 본 발명의 제어회로도.6 is a control circuit diagram of the present invention.

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

1 : 사무기기 2 : 급지트레이1: office equipment 2: paper feed tray

3 : 카세트 4, 4' : 저판홀3: cassette 4, 4 ': bottom plate hole

5 : 저판 10 : 저면홀5: bottom plate 10: bottom hole

11 : 카세트기어 12 : 카세트지지대11: cassette gear 12: cassette support

13 : 나사 14 : 슬라이드봉13: screw 14: slide rod

15 : 풀리 16 : 전후진모터15: Pulley 16: Forward and backward motor

17 : 와이어 18 : 회전모터17: wire 18: rotating motor

19 : 회전모터기어 20 : 전후진검지돌기19: rotating motor gear 20: front and rear diagnostic projection protrusion

21, 24 : 센서 22 : 회전검지돌기21, 24: sensor 22: rotation detection projection

23 : 절개부 30 : 중앙제어부23: incision 30: central control

31 : 조작부 32 : 전후진모터 구동부31: operation unit 32: forward and backward motor drive unit

33 : 회전모터 구동부 34 : 카세트지지대 위치검지부33: rotation motor drive unit 34: cassette support position detection unit

35 : 카세트 위치검지부35: cassette position detection unit

본 발명은 복사기, 보통용지 팩시밀리 등의 사무기기에 용지를 공급하기 위하여 장착되는 급지트레이에 관한 것으로, 특히 용지가 셋트되는 방향을 용이하게 바꿀 수 있도록 하는 용지방향 전환장치 및 그 제어회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a paper feed tray mounted for supplying paper to office equipment such as copiers and plain paper fax machines, and more particularly, to a paper direction switching device and a control circuit for easily changing the direction in which paper is set. .

사무기기에 사용되는 용지는 크기에 따라 여러가지로 구별되며, 같은 크기의 용지에 있어서도 용지가 셋트되는 방향에 따라서 구별된다.The paper used for office equipment is distinguished in various ways according to the size, and even the paper of the same size is distinguished according to the direction in which the paper is set.

일반적으로 사용되는 용지는 그 크기에 따라서 A3, A4, B4, B5로 구분되므로 사무기기(1)의 하단에 위치하는 급지트레이(2)도 제1도에서와 같이 각 용지크기의 종류에 맞도록 구비하고 있으며, 이때 상기 급지트레이(2)내에는 제2도에서와 같이 용지크기에 맞는 저판홀(4)이 형성된 카세트(3)를 장착시킨 후, 셋트된 용지를 저판(5)의 상승동작에 의하여 상측으로 이동시킨 후 상기 급지트레이(2)의 상측에 위치하는 급지 또는 픽업롤러(도시되지 않았음)에 의하여 급지되도록 하고 있다.Generally used paper is classified into A3, A4, B4 and B5 according to its size, so that the paper feed tray 2 located at the bottom of the office equipment 1 also fits the type of paper as shown in FIG. At this time, in the paper feed tray 2, as shown in FIG. 2, a cassette 3 having a bottom plate hole 4 suitable for a paper size is mounted, and then the set paper is lifted up of the bottom plate 5. After moving upward, the sheet is fed by a paper feed or pickup roller (not shown) located above the paper feed tray 2.

그러나, 상기 급지트레이(2)에 장착되는 상기 카세트(3)가 고정되어 위치하므로, A4, B5용지의 경우에 용지방향을 종방향에서 횡방향으로, 또는 횡방향에서 종방향으로 변경시킬 경우에는 상기 급지트레이(2)를 열고나서 상기 카세트(3)를 이탈시킨 후 방향을 바꾸어 재셋트하여야 하며, 이때, 상기 카세트(3)내에 용지가 셋트되어 있으면 이를 꺼낸후에야 상기 카세트(3)의 이탈 및 장착이 가능하다는 불편함이 있었다.However, since the cassette 3 mounted on the paper feed tray 2 is fixedly positioned, in the case of A4 and B5 paper, when the paper direction is changed from the longitudinal direction to the transverse direction or from the transverse direction to the longitudinal direction, After opening the paper feed tray 2, the cassette 3 should be detached and then reset in a different direction. In this case, if paper is set in the cassette 3, the cassette 3 should be removed and removed. There was an inconvenience that it is possible to install.

따라서 본 발명은 상기와 같은 불편함을 극복하기 위하여 카세트(3)의 방향을 자동으로 바꾸어 주는 급지카세트의 용지방향 전환장치 및 그 제어회로를 제공하는데 그 목적이 있다.Accordingly, an object of the present invention is to provide a paper direction switching device and a control circuit of a paper feed cassette which automatically changes the direction of the cassette 3 in order to overcome the inconvenience described above.

상기 목적을 달성하기 위하여 본 발명은, 용지가 셋트되는 카세트와, 상기 카세트가 장착되며 상기 용지를 상하 이동시키는 저판이 구비된 사무기기의 급지트레이에 있어서, 상기 저판의 이동을 위해 상기 카세트의 양방향에 형성되는 저판홀; 상기 급지트레이의 저면에 종방향으로 형성되는 저면홀; 상기 저면홀 내에 위치하여 전후방향으로 이동되며 상기 카세트가 고정되도록 하는 카세트지지대; 상기 저면홀에 위치하여 상기 카세트지지대를 이동시키는 카세트지지대 이동수단; 상기 카세트지지대에 위치하여 함께 이동되며 상기 카세트를 회전시키는 카세트 회전수단을 포함하고 있는 급지트레이의 용지방향 전환장치를 제공하고, 상기 용지방향 전환장치의 동작을 제어하기 위하여, 사용자로 부터의 동작요구 신호를 받아들이는 기능선택수단; 상기 기능선택수단에 연결되어 입력되는 신호에 따라 동작을 제어하는 중앙제어수단; 상기 중앙제어수단에 연결되어 상기 중앙제어수단의 신호에 따라 상기 카세트지지대 이동수단을 구동시키는 전후진모터 구동수단; 상기 중앙제어수단에 연결되어 상기 중앙제어수단의 신호에 따라 상기 카세트 회전수단을 구동시키는 회전모터 구동수단을 포함하고 있는 용지방향 전환장치의 제어회로를 제공한다.In order to achieve the above object, the present invention provides a paper feed tray of an office equipment having a cassette on which paper is set and a bottom plate on which the cassette is mounted and which moves the paper up and down. A bottom plate hole formed in the bottom plate hole; A bottom hole formed in a longitudinal direction on a bottom of the paper feed tray; A cassette supporter positioned in the bottom hole and moved forward and backward to fix the cassette; A cassette support moving means positioned in the bottom hole to move the cassette support; In order to provide a paper turning device of a paper feed tray, which includes a cassette rotating means for moving the cassette and located together on the cassette support, and controlling the operation of the paper turning device, an operation request from a user is required. Function selection means for receiving a signal; Central control means connected to the function selecting means for controlling an operation according to an input signal; A forward and backward motor driving means connected to the central control means to drive the cassette support moving means in accordance with a signal of the central control means; It is connected to the central control means provides a control circuit of a paper direction switching device including a rotary motor drive means for driving the cassette rotation means in accordance with the signal of the central control means.

이하, 본 발명을 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings the present invention will be described in detail.

제3도는 본 발명의 요부 구성도이고, 제4도는 본 발명에 의한 급지트레이 사시도이며, 제5도는 제4도의 요부 단면도, 제6도는 본 발명의 제어회로이다.3 is a schematic diagram of the main part of the present invention, FIG. 4 is a perspective view of the paper feed tray according to the present invention, FIG. 5 is a sectional view of the main part of FIG. 4, and FIG. 6 is a control circuit of the present invention.

도면에서 10은 저면홀, 11은 카세트기어, 12는 카세트지지대, 13은 나사, 14는 슬라이드봉, 15는 풀리, 16은 전후진모터, 17은 와이어, 18은 회전모터, 19는 회전모터기어, 20 는 전후진검지돌기, 21, 24는 센서, 22는 회전검지돌기, 23은 절개부, 30은 중앙제어부, 31은 조작부, 32는 전후진모터 구동부, 33은 회전모터 구동부, 34는 카세트지지대 위치검지부, 35는 카세트 위치검지부를 각각 나타낸다.In the figure, 10 is the bottom hole, 11 is the cassette gear, 12 is the cassette support, 13 is the screw, 14 is the slide rod, 15 is the pulley, 16 is the forward and backward motor, 17 is the wire, 18 is the rotation motor, 19 is the rotation motor gear , 20 is the front and rear diagnosis detection protrusion, 21 and 24 are the sensors, 22 is the rotation detection protrusion, 23 is the incision, 30 is the central control part, 31 is the operation part, 32 is the forward and backward motor drive part, 33 is the rotation motor drive part, 34 is the cassette The support position detection part and 35 represent a cassette position detection part, respectively.

제3도 내지 제5도에서와 같이, 저판(5)이 구비된 급지트레이(2)에 상기 저판(5)이 상향 이동되도록 양방향에 저판홀(4, 4')이 구비된 카세트(3)을 장착시키되, 상기 급지트레이(2)의 저면에 종방향으로 형성된 홀인 저면홀(10)에 위치하여 전후방향으로 이동하는 카세트지지대(12)에 장착시킨다.As shown in FIGS. 3 to 5, the cassette 3 having the bottom plate holes 4 and 4 ′ in both directions so that the bottom plate 5 moves upward in the paper feeding tray 2 provided with the bottom plate 5. Is mounted, but is mounted on the cassette support 12 which is located in the bottom hole 10 which is a hole formed in the longitudinal direction on the bottom of the paper feed tray (2) and moves in the front and rear directions.

그리고 상기 저면홀(10)의 양측의 단부에 풀리(15, 15')를 구비하되, 일측의 풀리(15)에 정방향 또는 역방향의 회전력을 제공하는 전후진모터(16)를 구비하고, 상기 카세트지지대(12)에 양단이 고정되며 상기 풀리(15, 15')에 감겨지는 와이어(17)를 구비하므로서, 상기 전후진모터(16)의 회전에 따라서 상기 카세트지지대(12)가 전후방향으로 이동되도록 구성하며, 이때 상기 카세트지지대(12)의 이동을 안정되게 하기 위하여 슬라이드봉(14)을 부가하여 구성할 수 있다.And a pulley (15, 15 ') at both ends of the bottom hole (10), having a forward and backward motor (16) for providing a forward or reverse rotational force to one pulley (15), the cassette Both ends are fixed to the support 12 and the wire 17 is wound around the pulleys 15 and 15 'so that the cassette support 12 moves forward and backward in accordance with the rotation of the forward and backward motor 16. In this case, the slide rod 14 may be added to stabilize the movement of the cassette support 12.

그리고 상기 카세트(3)의 저면 중앙에 카세트기어(11)를 형성한 후 상기 카세트지지대(12)에 나사(13)로 고정하므로서 이탈되는 것을 방지하며, 상기 카세트(3)의 회전이동을 위하여 정방향 또는 역방향 회전력을 제공하는 회전모터(18)에 회전모터기어(19)를 연결하되, 상기 카세트기어(11)에 상기 회전모터기어(19)가 맞물리도록 구성한다.The cassette gear 11 is formed at the center of the bottom surface of the cassette 3, and then, the cassette gear 11 is fixed to the cassette support 12 to prevent detachment. Alternatively, the rotary motor gear 19 is connected to the rotary motor 18 providing reverse rotational force, and the rotary motor gear 19 is engaged with the cassette gear 11.

따라서 상기 전후진모터(16)에 의해서 상기 카세트지지대(12)를 전후방향으로 이동시킬 수 있으며, 상기 회전모터(18)에 의해서 상기 카세트(3)를 회전시킬 수 있게 되어, 필요에 따라서 상기 급지카세트(2)에 장착되는 상기 카세트(3)의 방향을 전환시키므로 용지방향을 전환시킬 수 있게 된다.Accordingly, the cassette support 12 can be moved in the front-rear direction by the front-rear forward motor 16, and the cassette 3 can be rotated by the rotary motor 18. Since the direction of the cassette 3 mounted on the cassette 2 is changed, the paper direction can be switched.

또한, 상기와 같이 구성되는 급지카세트의 용지방향 전환장치의 동작을 제어하기 위하여, 상기 용지방향 전환동작의 시작신호를 받아들이는 조작부(31)를 구성하고, 상기 조작부(31)를 중앙제어부(30)에 연결한다.In addition, in order to control the operation of the paper direction switching device of the paper feed cassette configured as described above, an operation unit 31 which receives a start signal of the paper direction switching operation is constituted, and the operation unit 31 is the central control unit 30. ).

그리고 상기 중앙제어부(30)에는 상기 카세트지지대(12)를 전후방향으로 이동시키는 전후진모터 구동부(32), 상기 카세트(3)를 회전시키는 회전모터 구동부(33)를 연결하여 구성한다.In addition, the central control unit 30 is configured by connecting the forward and backward motor drive unit 32 for moving the cassette support 12 in the front and rear direction, and the rotation motor drive unit 33 for rotating the cassette 3.

상기와 같이 구성되는 본 발명의 작동과정을 설명하면, 조작부(31)에 동작시작신호가 입력되면 중앙제어부(30)로 전달되며, 상기 중앙제어부(30)는 전후진모터 구동부(32)를 통하여 전후진모터(16)를 일정시간동안 역방향으로 구동시켜 카세트지지대(12)를 일정위치에 이르도록 후진이동 시킨 후에, 회전모터 구동부(33)를 통하여 회전모터(18)를 구동시키되 카세트(3)가 종방향이면, 횡방향이 되도록, 또는 횡방향이면 종방향이 되도록 정회전 또는 역회전 구동시킨다.Referring to the operation process of the present invention configured as described above, when the operation start signal is input to the operation unit 31 is transmitted to the central control unit 30, the central control unit 30 through the forward and backward motor drive unit 32 After the forward and backward motors 16 are driven in the reverse direction for a predetermined time, the cassette support 12 is moved backward to reach a predetermined position, and then the rotary motors 18 are driven through the rotary motor drive unit 33 to generate the cassettes 3. Is a longitudinal direction, it drives in a transverse direction, or a transverse direction, it drives forward or reverse rotation.

상기 회전모터(18)의 구동에 의하여 상기 카세트(3)의 회전이동이 종료되면, 상기 전후진모터 구동부(32)를 통하여 전후진모터(16)를 일정시간 정방향 구동시켜 상기 카세트지지대(12)를 급지가 가능한 위치까지 전진이동시켜 용지방향을 전환시키게 되며, 이처럼 용지방향이 전환된 상태에서 대기하고 있다가 용지의 급지신호에 따라서 종래의 공지된 방법으로 저판(5)을 상승시킨 후에 용지를 급지하면 되며, 만약, 상기 저판(5)이 상승된 상태가 용지급지의 대기상태가 되는 사무기기의 경우에는 본 발명이 작동되기 전에 상기 저판(5)이 하향 이동되도록 구성하면 된다.When the rotational movement of the cassette 3 is completed by driving the rotary motor 18, the cassette support 12 is driven by driving the forward and backward motor 16 through the forward and backward vibration motor driver 32 for a predetermined time. The paper direction is changed by moving the paper forward to a position where paper can be fed. The paper is then waited while the paper direction is changed, and then the paper is raised after raising the bottom plate 5 according to a conventional paper feed signal. In the case of the office equipment in which the state where the bottom plate 5 is raised becomes the standby state of paper feeding, the bottom plate 5 may be moved downward before the present invention is operated.

상기와 같은 본 발명에 있어서, 상기 중앙제어부(30)가 상기 카세트지지대(12)의 전후진 위치를 검지하도록 하기 위하여, 상기 카세트지지대(12)의 후단에 설치되는 전후진검지돌기(20)와, 상기 저면홀(10)의 일정위치에 설치되어 상기 전후진검지돌기(20)에 의해 상기 카세트지지대(12)의 위치를 검지하는 센서(21)로 구성되는 카세트지지대 위치검지부(34)를 상기 중앙제어부(30)에 연결하여 구성할 수 있다.In the present invention as described above, in order for the central control unit 30 to detect the forward and backward position of the cassette support 12, the front and rear diagnosis detecting projection 20 is installed on the rear end of the cassette support 12 and The cassette support position detection unit 34 is installed at a predetermined position of the bottom hole 10 and comprises a sensor 21 for detecting the position of the cassette support 12 by the front and rear diagnosis detecting protrusions 20. It can be configured by connecting to the central control unit (30).

또한, 상기 중앙제어부(30)가 상기 카세트(3)의 회전위치를 검지하도록 하기 위하여, 상기 카세트(3)의 저면에 회전검지돌기(22)를 구성하고, 상기 카세트지지대(12)에 상기 회전검지돌기(22)가 삽입되는 절개부(23)를 구성하며, 상기 절개부(23)의 하측 일정위치에 설치되어 상기 회전검지돌기(22)에 의해 상기 카세트(3)의 위치를 검지하는 센서(24)로 구성되는 카세트 위치검지부(35)를 상기 중앙제어부(30)에 연결하여 구성할 수 있다.In addition, in order for the central control unit 30 to detect the rotational position of the cassette 3, a rotation detecting protrusion 22 is formed on the bottom of the cassette 3, and the cassette support 12 is rotated. The sensor 23 constitutes an incision 23 into which the detection protrusion 22 is inserted, and is installed at a lower position of the incision 23 to detect the position of the cassette 3 by the rotation detection protrusion 22. The cassette position detecting unit 35 composed of 24 may be connected to the central control unit 30.

상기와 같이 구성되는 카세트지지대 위치검지부(34)와 카세트 위치검지부(35)는 용지방향 전환동작의 제어를 용이하게 할 뿐만 아니라, 용지방향 전환동작중에 전원이 나가거나, 어떠한 장애에 의해서 작동이 중단된 후 다시 작동되는 경우에 있어서 상기 중앙제어부(30)에 이동이 기준점을 제공한다.The cassette support position detection unit 34 and the cassette position detection unit 35 configured as described above not only facilitate the control of the paper direction switching operation, but also turn off the power during the paper direction switching operation or stop the operation due to any obstacle. In the case of being operated again after the movement is provided to the central control unit 30 provides a reference point.

상술한 바와 같이 구성되어 작동하는 본 발명은, 급지트레이에 장착되는 카세트의 용지방향 전환에 있어서, 사무기기 외부에서 사용자의 간단한 조작에 의하여 자동으로 전환되는 기능의 추가와, 종래의 수작업에 의한 사용자의 불편함을 제거하여 제품의 신뢰도를 향상시키는 효과가 있다.The present invention constructed and operated as described above, in addition to the addition of a function of automatically switching by a simple operation of the user outside the office equipment in the paper direction switching of the cassette mounted on the paper feed tray, the user by a conventional manual operation Eliminates the discomfort of the product has the effect of improving the reliability.

Claims

In the paper feed tray 2 of the office equipment, which is provided with a cassette 3 on which paper is set, and a bottom plate 5 on which the cassette 3 is mounted and which moves the paper up and down, movement of the bottom plate 5 is performed. Bottom plate holes (4, 4 ') formed in both directions of the cassette (3); A bottom hole 10 formed in the longitudinal direction on the bottom of the paper feed tray 2; A cassette support (12) positioned in the bottom hole (10) and moved forward and backward to fix the cassette (3); A cassette support moving means positioned in the bottom hole 10 to move the cassette support 12; Located in the cassette support (12) is moved together and the paper direction switching device of the paper tray, characterized in that it comprises a cassette rotating means for rotating the cassette (3).

According to claim 1, wherein the cassette support means for moving, pulleys (15, 15 ') located at both ends of the bottom hole (10); A forward and backward motor 16 positioned at one side of the pulleys 15 and 15 'to provide a forward or reverse rotational force to the pulleys 15 and 15'; Both ends are fixed to the cassette support 12, and are wound around the pulleys 15 and 15 'so that the wire 17 moves the cassette support 12 according to the rotation of the pulleys 15 and 15'. Paper direction switching device of the paper feed tray, characterized in that it comprises a.

The method of claim 1, wherein the cassette (3) and the cassette support (12) is fixed, the cassette gear (11) formed in the center of the bottom surface of the cassette (3); And a screw (13) for fixing the cassette gear (11) to the cassette support (12).

4. The cassette motor according to claim 3, wherein the cassette rotating means includes: a rotating motor gear (19) engaged with the cassette gear (11) to rotate; And a rotary motor (18) positioned on the cassette support (12) to provide a rotational force in the forward or reverse direction to the rotary motor gear (19).

A paper feed tray 2 having a bottom plate 5 for moving the paper up and down, a cassette 3 having bottom plates holes 4 and 4 'formed in both directions for movement of the bottom plate 5, and the paper feed tray 2) a bottom hole 10 formed in the longitudinal direction at the bottom of the bottom surface, a cassette support 12 positioned in the bottom hole 10 and moved in the front-rear direction to fix the cassette 3, and the bottom hole A paper feed tray having a cassette support moving means positioned at (10) to move the cassette support (12) and a cassette rotating means positioned at the cassette support (12) and moved together to rotate the cassette (3) A circuit for controlling a paper direction switching device, comprising: function selecting means (31) for receiving an operation request signal from a user; A central control means (30) connected to the function selecting means (31) to control an operation according to an input signal; Forward and backward motor driving means (31) connected to the central control means (30) to drive the cassette support moving means in accordance with a signal from the central control means (30); And a rotation motor driving means 32 connected to the central control means 30 to drive the cassette rotation means in accordance with the signal of the central control means 30. Control circuit.

The method of claim 5, wherein the central control means 30, the front and rear diagnosis detecting projections 20 are installed at the rear end of the cassette support 12, in order to detect the position of the cassette support 12; Is installed at a predetermined position of the bottom hole 10 is composed of a sensor 21 for detecting the position of the cassette support 12 by the front and rear diagnosis detecting projection 20, connected to the central control means 30 And a cassette support position detecting means (34) which is arranged.

6. The rotary detection protrusion (22) according to claim 5, wherein said central control means (30) is provided on the bottom of said cassette (3) for detecting the position of said cassette (3); An incision (23) formed to insert the rotation detecting protrusion (22) into the cassette support (12); The sensor 24 is installed at a predetermined lower side of the cutout 23 to detect the position of the cassette 3 by the rotation detecting protrusion 22, and is connected to the central control means 30. And a cassette position detecting means (35).