JPS6351232A - Paper feeder - Google Patents

Abstract

PURPOSE:To aim at conveyance of a conventional card and a stiff card in combination, by attaching a second cassette case to the front of a body, and installing a curved guide way to be opposed to a curved conveying passage in a front edge of a first cassette case at the specified space, in the second cassette attached surface. CONSTITUTION:A first cassette case 7 is loaded to a printer body 1, and a cutform 12 is fed to a printing part 2 by way of a paper feed roller 8, a curved surface 15 and a cutform conveying passage 16. A second cassette car 18 is attached to the front of this body 1, and stiff cards 26 is fed to the printing part 2 by way of the cutform passage 16 by a paper feed roller 29. Therefore, the card 26 is not passed through a bending passage, so that it is conveyed without forming any bend way. And, in the attached surface of the second cassette, there is provided with a curved guide way 21 as opposed to a curved surface 15 at the specified interval, so that the cutform 12 passes through a clearance and is reached to the printing part 12, thus there is no obstruction against actuation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paper feeding device that separates and feeds stacked sheets, cards, etc. one by one.

Conventional technology In the past, a cassette case was provided at the bottom of the main body that housed the printing section, and a U-shaped cut conveying path was used to transport the tickets pulled out from the front edge of the cassette case to the printing section at the rear. There is also a device in which a feed roller is provided in this ticket conveyance path.

Problems to be Solved by the Invention However, since the tickets in the cassette case at the bottom of the main body are curved, stiff cards such as postcards tend to bend. Some devices have a manual feed slot on the front of the main body, but it is extremely troublesome to insert postcards and the like one by one through this manual feed slot.

Means for Solving the Problem The main body of the printing machine includes a first cassette case located at the bottom and accommodating a large number of sheets in a stacked state, and an upper part near the front edge of the first cassette case. a paper feed roller located at the front edge of the first cassette case, a printing section, and a ticket conveyance path that extends from the front edge of the first cassette case toward the front upper part, passes through a curved surface, and reaches the printing section at the rear. a guide surface that faces an extended surface extending forward from the latter half of the curved surface of the path and supports sturdy cards in a stacked state; a paper feed roller that contacts the cards in the lowest layer; A second cassette case is provided at the front of the main body, the second cassette case having a pressing body that contacts the cards on the upper layer and a gate that faces the guide surface with a gap of about one card. The second cassette case is provided with a curved guide surface that faces the curved surface of the cut conveyance path with a predetermined gap therebetween.

Function: Therefore, the ticket in the first cassette case is pulled out by the paper feed roller, conveyed from the ticket conveyance path to the printing section, and printed. However, when printing on cards such as postcards, there is a Attach the second cassette case, press the cards placed on the guide surface toward the guide surface with a pressing member, and then move the cards sequentially from the lowest layer to the cut sheet conveyance path inside the main body using a paper feed roller. Send to the second half. As a result, even stiff cards can be fed continuously and efficiently without bending.

Furthermore, by providing a curved guide surface in the second cassette case, the tickets in the first cassette case can be sent out between the ticket conveyance path inside the main body and the curved guide surface in the second cassette case. Can be done.

Furthermore, by forming a manual feed guide surface on the top surface of the second cassette case, it is possible to feed other sheets from the manual feed guide surface even when the second cassette case is attached to the main body. .

Example An embodiment of this invention will be described based on the drawings.

As shown in FIGS. 1 and 2, a printing section 2 is provided inside a main body 1 of the printing machine. The printing unit 2 includes a rotating photoreceptor 3, a charger 4 that forms a charged layer on the outer periphery of the photoreceptor 3, and a laser beam scans the charged layer formed by the charger 4 to form an electrostatic latent image. an exposure section 5 for forming an electrostatic latent image; a developing device 6 for developing this electrostatic latent image;
The developed image is sent to the cut sheet 1 from the first cassette case 7 by a paper feed roller 8 and feed rollers 9, 10, 11.
Transfer charger 13 to be transferred to 2 and cut sheet 12 after transfer
and a fixing roller 14 for fixing the image.

Further, inside the main body 1, there is provided a ticket conveyance path 16 that extends from the front edge of the cassette case 7 toward the front upper part, passes through the curved surface 15, and reaches the printing section 2 at the rear.

In addition, a manual feed cover 1 is selectively attached to the front of the main body 1.
7 and a second cassette case 18 are provided. The manual feed cover 17 has a cut sheet conveyance path 16 as shown in FIG.
A curved guide surface 19 is formed to face the curved surface 15 of the feed roller 9 with a predetermined gap therebetween, and a pinch roller 20 that resiliently contacts the feed roller 9 is rotatably mounted. Further, as shown in FIGS. 1, 3, and 4, the second cassette case 15 includes a curved guide surface 21 that conveys the cut sheet 12 between the curved surface 15 of the cut sheet conveyance path 16. A locking protrusion 22 is formed on both sides of the tip of the curved guide surface 21 to be removably engaged with locking holes (not shown) formed on both sides of the ticket conveyance path 16. . A plurality of openings 23 are arranged in the left-right direction on the curved guide surface 21, and a pinch roller 24 that contacts the feed roller 9 inside these openings 23 is biased in one direction by a plate spring 25 so as to be rotatable. It is provided. Note that the manual feed cover 17 also has locking protrusions 22 on both sides, and its attachment structure to the main body 1 is the same as that of the second cassette case 18.

The second cassette case 18 has bulging guide surfaces 27 and 28 that support postcards 26 as cards, and the lowermost postcard 26 on the guide surfaces 27 and 28 side.
A paper feed roller 29 that contacts the paper feed roller 6 is rotatably provided. A pair of left and right eccentric cams 31 and a gear 32 are fixed to the shaft portion 30 of the paper feed roller 29, and a motor 34 for driving a gear 33 meshed with the gear 32 is mounted on the second cassette case 18. . The second cassette case 18 also includes a pair of left and right swing arms 36 that rotatably hold both ends of the push-up roller 35 and abut against the eccentric cam 31.
and a pressing body 38 having a weight 37 that presses the uppermost leaf N26. Both sides of the opening/closing cover 39 that opens and closes the upper space of the postcard 26 are rotatably held by bins 40 erected from both sides of a protrusion 45 that protrudes from the guide surface 27, and both ends of the pressing body 38 are It is rotatably held in a hole 41 formed in the opening/closing cover 39.

Furthermore, as shown in FIG. 8, the second cassette case 1
Reference numeral 8 has defining covers 42 located on both sides of the opening/closing cover 39, and on the upper surfaces of these opening/closing covers 39 and the fixed cover 42, there is a manual guide surface 43 for guiding other tickets on the width of the postcard 26. is formed. Furthermore, the opening/closing cover 39 is provided with a postcard 26 located between it and the guide surface 27 on the rotation center side thereof.
- The stopper 44 is fixed with a gap corresponding to the thickness of the sheet.

Next, as shown in FIG. 5, a gate 46 having a gap slightly larger than the thickness of 26 postcards is formed at the lower end of the protrusion 45 protruding from both sides of the guide surface 27. Also, a support piece 48 rotatably supports a bin 47 protruding from the end of the swing arm 36, and a shaft portion 3 of the paper feed roller 29.
The support piece 49 that rotatably supports the second cassette case 18 is formed integrally with the second cassette case 18.

Further, as shown in FIG. 6, a container 51 is formed by connecting two divided containers 5o made of a cushioning material while fitting them to the motor 34, and a part of the outer peripheral surface of this container 51 is formed. An abutting fastener 52 is provided. A shaft 53 that protrudes laterally is integrally formed at one end of this tightening tool 52, and two elastically bendable tongue pieces 54 are integrally arranged in parallel at the other end with an interval. . The bottom surface of the cassette case 18 has a recess 55 into which the bottom of the container 51 is stably fitted, a bearing 56 which rotatably supports the shaft 53, and a lock having a slope 57 at the tip like an arrow. Claw 58
are integrally formed.

Furthermore, as shown in FIG. 7, the second cassette case 1
8 has a PC board 59 connected to the motor 34,
A connector 60 for connecting this PC board 59 to an external circuit is fixed.

In such a configuration, the cut sheet 12 of the first cassette case 7 is pulled out by the paper feed roller 8, and the cut sheet 12 is pulled out by the feed roller 8,
10.11, the light is supplied to the photoreceptor 3 and printed.

When printing on other single sheets, as shown in Figure 2,
Attach the manual feed cover 17 to the front of the
The cut sheets are fed one by one from the top surface to the intermediate portion of the cut conveyance path 16.

When printing on a postcard 26, a second cassette case 18 is attached to the front of the main body 1 in place of the manual feed cover 17, as shown in FIG. Then, the paper is fed by rotating the paper feed roller 29 by the motor 34. That is, the lowermost postcard 26 is sent to the left by the paper feed roller 29 under the pressure of the weight 37. At this time, the bottom postcard 26
Only the liquid is sent to the main body 1 through the lower part of the stopper 44 and the gate 46. In addition, the paper feed roller 29 rotates once and stops in order to feed one postcard 26, but in the second half of a rotation from the time when the leading edge of the postcard 26 reaches the feed roller 10 in the main body 1, the cam 31 moves with a high bar. Push up the swing arm 36. As a result, the push-up roller 35 moves the postcard 2
6 is pushed up and separated from the paper feed roller 29, and the subsequent operation of sending the postcard 26 is left to the feed rollers 10 and 11 on the main body l side.

In this way, even if the postcards 26 are stiff, they are fed straight from the front of the main body 1, so they are not bent and are fed continuously and efficiently.

Further, when replenishing the second cassette case 18 with postcards 26, the opening/closing cover 39 is opened upward using the pin 40 as a fulcrum, as shown in FIG. At this time, since the pressing body 38 follows the opening/closing cover 39 and is suspended in the hole 41 beyond the vertical plane, the postcard 2 is not obstructed by the weight 37.
6 can be stacked on the guide surface 27.28.

Further, since a manual feed guide surface 43 is formed on the upper surface of the second cassette case 18, other single sheets wider than the postcard 26 are fed one by one into the main body l by the manual feed guide surface 43. be able to. Furthermore, since the manual feed cover 17 and the second cassette case 18 have curved guide surfaces 20.21, the slips 12 in the first cassette case 7 are smoothly curved and attached to the printing section 2. I can guide you.

Effects of the Invention Since the present invention is configured as described above, the cut sheet in the first cassette case is pulled out by the paper feed roller and conveyed from the cut sheet conveyance path to the printing section for printing. When printing on cards such as postcards, the paper can be fed continuously and efficiently without curling.
Furthermore, by providing a curved guide surface in the second cassette case, the tickets in the first cassette case can be sent out between the ticket conveyance path inside the main body and the curved guide surface in the second cassette case. Furthermore, by forming a manual feed guide surface on the top surface of the second cassette case, other sheets can be fed from the manual feed guide surface even when the second cassette case is attached to the main body. It has the following effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a longitudinal sectional side view showing a reduced scale of the main body with the second cassette case attached, and Fig. 2 shows the main body with a manual feed cover attached. FIG. 3 is a vertical side view showing the second cassette case, FIG. 4 is a vertical side view showing the opening/closing cover opened, and FIG. 5 is a swing arm and paper feed. FIG. 6 is an exploded perspective view showing the support structure for the rollers, etc.; FIG. 6 is an exploded perspective view showing the support structure for the motor with respect to the second cassette case; FIG. 7 is a plan view showing the inside of the second cassette case; FIG. FIG. 2 is a perspective view showing the external appearance of the second cassette case in a reduced scale. DESCRIPTION OF SYMBOLS 1... Main body, 2... Printing part, 7... First cassette case, 8... Paper feed roller, 12... Single sheet, 15
... Curved surface, 16... Single sheet conveyance path, 18... Second cassette case, 21... Curved guide surface, 26...
Postcards (cards), 27.28...Information page, 29...
・Paper feed roller, 38...Press body, 39...Opening/closing cover, 43...Manual feed guide surface, 46...Gate 37 diagram

Claims (1)

[Claims] 1. A first cassette case located at the bottom of the main body of the printing machine and accommodating a large number of sheets in a stacked state, and an upper part near the front edge of the first cassette case. a paper feed roller located at the front edge of the first cassette case, a printing section, and a ticket conveyance path that extends from the front edge of the first cassette case toward the front upper part, passes through a curved surface, and reaches the printing section at the rear. a guide surface that faces an extended surface extending forward from the latter half of the curved surface of the path and supports sturdy cards in a stacked state; a paper feed roller that contacts the cards in the lowest layer; A second cassette case is provided at the front of the main body, the second cassette case having a pressing body that contacts the cards on the upper layer and a gate that faces the guide surface with a gap of about one card. Put it on,
A sheet feeding device characterized in that the second cassette case is provided with a curved guide surface that faces the curved surface of the ticket conveyance path with a predetermined gap therebetween. 2. The paper feeding device according to claim 1, characterized in that a curved guide surface is integrally formed in the second cassette case. 3. The main body of the printing machine includes a first cassette case located at the bottom and accommodating a large number of sheets in a stacked state, and a paper feed roller located at the top near the front edge of the first cassette case. and a printing section, and a ticket conveyance path that extends from the front edge of the first cassette case toward the front upper part, passes through a curved surface, and reaches the printing section at the back, a guide surface that faces an extended surface extending forward from the latter half of the board and supports sturdy cards in a stacked state; a paper feed roller that contacts the cards in the bottom layer; and a feed roller that contacts the cards in the top layer; A second cassette case having a pressing body in contact with the guide surface and a gate facing the guide surface with a gap of approximately the size of one card is attached to the front part of the main body,
The second cassette case is provided with a curved guide surface that faces the curved surface of the ticket conveyance path with a predetermined gap therebetween, and the second cassette case opens and closes the upper space for the cards. A paper feeding device characterized by being provided with a cover. 4. Claims characterized in that an opening/closing cover is attached to the second cassette case so as to be movable up and down, and the end of the pressing body is connected to the free rotating end of the opening/closing cover so as to be movable up and down. The paper feeding device according to item 3. 5. The main body of the printing machine includes a first cassette case located at the bottom and containing a large number of sheets in a stacked state, and a paper feed roller located at the top near the front edge of the first cassette case. and a printing section, and a ticket conveyance path that extends from the front edge of the first cassette case toward the front upper part, passes through a curved surface, and reaches the printing section at the back, a guide surface that faces an extended surface extending forward from the latter half of the board and supports sturdy cards in a stacked state; a paper feed roller that contacts the cards in the bottom layer; and a feed roller that contacts the cards in the top layer; A second cassette case having a pressing body in contact with the guide surface and a gate facing the guide surface with a gap of approximately the size of one card is attached to the front part of the main body,
The second cassette case is provided with a curved guide surface that faces the curved surface of the ticket conveyance path with a predetermined gap therebetween, and a manual feed guide surface is formed on the upper surface of the second cassette case. A paper feeding device featuring: 6. The paper feeding device according to claim 5, wherein the width of the manual feeding guide surface is wider than the width of the cards.