JPH02300022A - Drive mechanism for rotary cassette - Google Patents

Abstract

PURPOSE:To make it possible to change a vertical and lateral feed position of a rotary cassette alternatively by disposing a movable member connected freely rotatably with a close position to an angular part between vertical and lateral feed and supply parts of the rotary cassette to reciprocate linearly in the direction crossing to the supply direction on the supply side of a rotary cassette unit. CONSTITUTION:A rotary cassette 35 is rotated by linear reciprocation of a movable member 50, and vertical feed and supply parts or lateral feed and supply parts of this rotary cassette 35 are directed toward the supply side of a rotary cassette unit alternatively. At each position by such rotation action, the movable member 50 moves linearly as it is connected at a close position between both supply parts of the rotary cassette, so the forward end of the vertical feed and supply part at the vertical position and the forward end part of the lateral feed and supply part at the lateral feed position are positioned at the same position, so the position relation to a pickup roller, etc., is secured to be constant for each position.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a drive mechanism for a rotating cassette for freely feeding paper vertically and horizontally, and is used, for example, in an electrophotographic device. It is something that

[Conventional technology]

2. Description of the Related Art Conventionally, for example, a copying machine has been provided with a paper feeding device that supplies paper into the main body of the copying machine, and this paper feeding device is provided with a plurality of paper feeding cassettes for each paper size. When transporting paper from a paper feeder, it is preferable to transport the paper horizontally with the short side of the paper as the transport direction, rather than vertically with the long side of the paper as the transport direction, because the transport time required is shorter. Some copying machines are designed to feed B4 and even A3 sheets horizontally.

On the other hand, if even large-sized sheets are fed horizontally, the photoreceptor drum, conveyance rollers, paper conveyance path, etc. within the copying machine become larger, leading to an increase in the size of the apparatus itself and an accompanying cost increase. Therefore, in general, large sheets of paper size such as B4 and A3 are fed vertically, and small sheets of size A4 or smaller are fed horizontally.

However, with such a configuration, in a copying machine that has a reduction and enlargement function such as a variable magnification function, for example, for reduction copying, it is necessary to cut paper such as B5R and A4R for vertical feeding, while reducing the conveyance speed. Considering this, B5 and A4 paper cassettes for horizontal feeding are required. Therefore, if such a variety of paper cassettes are provided, the paper feeding device must be made larger, or multiple paper cassettes must be replaced depending on the purpose, which increases the size of the device and increases costs. Otherwise, the operation becomes complicated.

Therefore, to avoid such problems, for example, Japanese Patent Application Laid-Open No. 56-59245 and Japanese Patent Application Laid-Open No. 56-592 have been proposed.
As disclosed in Publication No. 51, for example, B5 and B
A configuration has previously been proposed in which a 5R1, A4, and A4R paper cassette is used in common, and paper can be fed horizontally and vertically by rotating the paper cassette.

(Problem to be Solved by the Invention) However, in the conventional structure described above, when the paper cassette is rotated, the distance between the pickup roller and the cassette differs depending on the length and width of the cassette. After the feeding rotation is completed, the paper cassette must be brought closer to the pickup roller, or the pickup roller must be brought closer to the paper cassette.

In this case, in addition to the paper cassette rotation mechanism, it is necessary to provide a moving mechanism for the paper cassette or the pick-and-roller, which complicates the structure and makes it relatively expensive, and requires time for the movement by the above-mentioned moving mechanism. Therefore, it becomes difficult to feed paper quickly. In particular, when the pick-up roller is moved, the leading edge of the copy paper will move back from the position when vertically fed, which means that the transport path will become longer, so the paper cassette will be rotated. This brings about the problem that the benefits of doing so are halved.

[Means to solve the problem]

In order to solve the above problems, the rotating cassette drive mechanism according to the present invention is rotatably supported within a rotating cassette unit in order to switch between vertical paper feeding and horizontal paper feeding as necessary. A drive mechanism for rotationally driving a rotary cassette, the arm having one end pivotally supported at a predetermined portion of the rotary cassette unit and rotatably provided on a horizontal opening; A rotating cassette supported and rotatably provided at a horizontal opening, and a rotating cassette unit rotatably connected near a corner between a vertical paper feeding section and a horizontal paper feeding section of the rotating cassette. A moving member is provided on the paper feeding side of the paper so as to move linearly back and forth in a direction perpendicular to the paper feeding direction.

[For production]

According to the above configuration, for example, the rotating cassette is rotated by the linear reciprocating movement of the moving member, and the collapsing paper feeding section or the horizontal feeding section of the rotating cassette is alternatively directed toward the paper feeding side of the rotating cassette unit. It will be done. In each of the above positions due to such rotational movement, the connecting member is connected to the vicinity of the corner between the vertical paper feed section and the horizontal paper feed section in the rotating cassette and moves linearly. The leading edge of the feeding paper feeding unit and the leading edge of the lateral feeding paper feeding unit in the lateral feeding position are positioned at the same position, and the distance relationship with the pickup roller etc. is maintained constant at each position. Therefore, there is no need for a mechanism for moving the paper cassette or the big amplifier roller, and the structure can be made into a cylindrical structure.

Moreover, movement of the center of rotation in the rotary cassette due to the rotation cassette and the movable member being connected and the movable member moving in a straight line is ensured by the arcuate movement of the arm.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

As shown in FIG.
On the top is an automatic document feeder (hereinafter referred to as ADF) 3.
is installed. The ADF 3 checks the size and feed direction (
In addition to having the function of transporting the original to a predetermined position on the document table glass 2 according to the horizontal feeding or vertical feeding, and ejecting the original to the outside of the ADF 3 after copying is completed,
For example, if double-sided copying is to be performed, the scanner also has a function of inverting the original, transporting it again to a predetermined position on document table glass 2, and ejecting the original to the outside of ADF 3 after double-sided copying is completed. Note that switches 4 and 5 are provided on the document placing table 3a to determine the size of the document placed thereon.

An optical system 6 consisting of reflective mirrors 6a, lenses 6b, etc. is provided below the document table glass 2. In addition to the basic function of guiding light reflected by the original to the photosensitive drum 7, this optical system 6 also has a variable magnification function, and is configured to be capable of not only full-size copying but also enlarged copying and reduced-size copying. It has become.

A cleaner 8, a static elimination charger 9, a charging charger 10, a developing means 11 having toner for color copying, and a developing means 12 having black toner are arranged around the photosensitive drum 7, and each of these means As a result, a series of operations are performed on the photosensitive drum 7: removal of residual toner, neutralization, charging, exposure (performed by the optical system 6), and development.

A transfer charger 13 and a peeling charger 14 are disposed below the photoreceptor drum 7, and when a copy sheet (not shown) passes between the photoreceptor drum 7 and the transfer charger 13, the transfer charger 13 The toner image formed on the photosensitive drum 7 is transferred onto the copy paper. Further, the copy paper is separated from the photosensitive drum 7 by the peel charger 14, and the separated copy paper is transported to the fixing device 1 by the transport belt 17. The fixing device 18 is for fixing the toner transferred to the copy paper by heating or applying pressure.

The copy paper that has passed through the fixing device 18 is basically placed outside the copying machine 1, that is, after passing through the sorter 19, the paper is placed on a tray 19a...
For example, when double-sided copying or composite copying is performed, the paper is guided through a paper return path 20 to a double-sided composite unit 21. In the case of double-sided copying, the paper is reversely placed on the intermediate tray 21c via the first conveyance path 21a in the duplex composition unit 21, and then sent out to the paper supply path 22 by the sending roller 21d. When performing composite copying, the copy paper is sent to the second conveyance path 21b in the double-sided composition unit 1-21, and after the trailing edge of the copy paper is detected in the second conveyance path 21b, the trailing edge of the copy paper is The sheet is sent out with the leading edge in the traveling direction, passed through the first wt, the feeding path 21a, and placed inverted on the intermediate tray 21c, and then sent out to the paper supply path 22 by the feeding roller 21d.

The paper supply path 22 is a path for guiding the copy paper to the photoreceptor drum 7, and at its terminal end there is a paper stop for timing the rotation of the photoreceptor drum 7 and the feeding of the copy paper. A roller 15 is provided. Further, a plurality of paper supply means are connected to the paper supply path 22, and copy paper is appropriately supplied from each of these means. Specifically, in order from the lower side of the copying machine, there are a first fixed cassette assembly 5, a first rotating cassette unit 26, a second rotating cassette unit 27, the above-mentioned double-sided combining unit 21, a second fixed cassette 28, and a third fixed cassette. A cassette 29 and a manual feeding section 30 are provided. Note that the first fixed cassette 25, second fixed cassette 28, and third fixed cassette 29 are detachably installed in the copying machine l, and the first rotating cassette unit 26 and the second rotating cassette unit 27 copy it
The plywood 31 is provided so that it can be pulled out.

In the first and second rotating cassette units 26 and 27, as shown in FIG.
A pedestal 31a is fixed on top of the pedestal 31a.
One end side of an arm 32 is pivotally supported on a support shaft 31b erected above, so that the arm 32 is rotatably supported on the horizontal opening. A support shaft 3 is attached to the other end of the arm 32.
2a is erected, and a rotary cassette 35 is rotatably supported by this support shaft 32a. The rotating cassette 35 has a two-plate structure consisting of a paper feed base 33 and a rotating plate 34 placed on the paper feeding base 33. By rotating 90 degrees together with the rotating plate 34, the rotating plate 3
The feeding of the copy sheets stacked on 4 can be freely switched between vertical feeding and horizontal feeding. Note that in each of the vertical and horizontal feeding positions described above, the position at which the rotating cassette 35 is supported by the support shaft 32a is set so that the center of feeding the copy paper passes over the support shaft 32a.

The vertical paper feed section and the horizontal paper feed section of the paper feed base 33 are provided with wall sections 33 for preventing stacking of copy sheets from shifting.
a and 33b are formed in a bent state. These wall parts 3
A cutout 33c is formed in the approximate center of each of the paper feed base 33, and each cutout 33C extends to the bottom plate of the paper feed base 33 and extends a predetermined length toward the center of the paper feed base 33. Lift plate 4 placed below the
0 can come into contact with the back surface of the bottom plate of the rotating plate 34. The specific configuration of the lift plate 40 will be described later.

Moreover, on the paper feed base 33, the above-mentioned wall portions 3.3a and 3.
Wall portions 33f and 33e are arranged to face each of the walls 3b. These wall portions 33e and 33f are connected to the rotating plate 34.
The notches 34a and 34b are provided through the notches 34a and 34b, and are configured so that the operation of lifting one side of the copy paper by the rotary plate 34 is not interfered with by the walls 33e and 33f.

Inclined portions 34f and 34g, which are inclined downward with respect to the main body of the rotary plate 34, are formed in the vertical paper feeding section and the horizontal paper feeding section of the rotary plate 34, respectively. Rotating plate 3
4, a corner portion between the non-sheet feeding portion for the vertical sheet feeding portion and the non-sheet feeding portion for the horizontal sheet feeding portion in 4 is provided with a groove extending outward from the upper end of the wall portion 34d of the rotary plate 34. The support piece portion 34C is formed in a bent state.
A support structure 36 that supports the rotating plate 34 at one point is configured at 4c.

A guide means 37 is provided at a position on the non-paper feeding side of the rotating cassette 35 and at a certain distance from the support structure 36 on the vertical paper feeding side. This guide means 37 guides the rotating plate 34 in the vertical direction when lifting the fir-feeding paper feeding section on the rotating plate 34, and rotates the rotating plate 340 when lifting the horizontal feeding paper feeding section on the rotating plate 34. This is the fulcrum part.

90! of the rotating cassette 35 is located in the paper feeding section of the rotational force cent unit 26 (27). a lift plate 40 for rotational drive and paper lifting operation on the rotary plate 34;
A drive mechanism 42 is provided in which a single drive motor 41 performs rotational driving. In this drive mechanism 42, a gear 41a is fixed to the output shaft of the drive motor 41, and the driving force of the drive motor 41 is transmitted to the first clutch 44 and the first clutch 44 through a gear group 43 meshed with the gear 41a. 2 clutch 45.

The first clutch 44 is used to connect and disconnect the transmission of driving force for rotating the rotary cassette 35 through 90 degrees, and is disposed on the side of the paper feed section of the rotary cassette 35. 1st
．． A pulley 46 is fixed to the output shaft 44a of the clutch 44, while a pulley 47 is disposed elsewhere in the paper feeding section of the rotating cassette 35, and both pulleys 46
- An endless belt 48 is passed between the racks 47 and 47. A moving block 5 as a moving member is provided at a predetermined portion of the belt 48 passing under the pulleys 46 and 47.
0 is fixed, and as the belt 48 moves, the moving block 50 moves back and forth. A guide shaft 51, which is suspended horizontally between the pulleys 46 and 47 in a direction perpendicular to the paper feeding direction, is inserted into a through hole formed in the approximate center of the moving block 50. 51 allows the moving block 50 to be linearly guided. moving block 50
A support shaft 50a is formed at the upper part of the support shaft 50a, and a No. 1 holding member 52 is rotatably supported on this support shaft 50a. An abbreviated angle portion 52a is formed in the holding member 52, and this angle portion 52a is attached to a corner of the paper feed base 33 between the vertical paper feed section and the horizontal paper feed section. . In addition, position detection switches 100 and 10 are provided near one end and the other end of the guide shaft 51.
1 (shown in FIG. 5), and when the position detection switch 100 is pushed by the switch operating piece 52'b fixed to the angle portion 52a, the position detection switch 101 is moved. They are each operated by actuating pieces 50b of block 50.

On the other hand, the second clutch 45 is for intermittent transmission of the driving force for the paper lifting operation on the rotary plate 34, and the output of the second clutch 45 is transmitted to the rotary shaft 54 via the gear group 53. It looks like this. That is, the output of the second clutch 45 is transmitted from each gear in the gear group 53 to the worm gear 53a, and further passes through the wheel gear 53b meshed with the worm gear 53a, so that the output is three-dimensionally connected to the output shaft of the second clutch 45. The signal is transmitted to rotating shafts 54 arranged in an intersecting manner.

A first coupling ring 55 is attached to the other end of the rotating shaft 54.
While the joint portion 55a forming one side of the copying machine 1 is fixed,
A joint portion 55b, which forms the other side of the first coupling ring 55, is fixed to the tip of the rotating shaft 56 rotatably supported on the main body side. A gear 56b fixed to the rotating shaft 56 has a gear 57a fixed to the rotating shaft 57.
are interlocked. The rotating shaft 57 is parallel to the above-mentioned rotating shaft 56, and similarly to the rotating shaft 56, is rotatably supported on the main body side of the copying machine 1. A joint portion 58b, which forms one side of the second coupling ring 58, is fixed to the tip of the rotating shaft 57. Joint portion 58a forming the other side of the second coupling ring 58
is fixed to one end side of a lift-up shaft 60 that is provided parallel to the rotating shaft 54. Note-1
The engagement and disengagement of the joint portions 55a and 55b in the first coupling ring 55 and the engagement and disengagement of the coupling portions 58a and 58b in the second coupling ring 58 are performed by the rotational force set unit 1-26 (27) of the main body of the copying machine 1. This is done by pushing in and pulling out.

A lift plate 40 is fixed to approximately the center of the lift-up shaft 60, and the rotation of the lift-up shaft 60 causes the lift plate 40 to rotate and lift the paper feeding portion of the rotary plate 34. . Further, the other end of the lift-up shaft 60 is simply supported rotatably, and no member is connected to this end. Therefore, the joint portion 58a is connected to the joint portion 58b. When the lift plate 40 is separated from the lift plate 40, it becomes completely free, and the lifted lift plate 40 naturally rotates downward under its own weight.

As shown in FIG. 3, above the paper feed section of the rotating cassette 35, a support stand 63 is fixed to the main body of the copying machine 1. A paper feed mechanism 62 is provided to feed the paper to the supply path 22. Note that the support stand 63 has a paper feed mechanism 62.
A notch 63a for part of the feed roller 65 and paper feed roller 66 to protrude from below the support base 63, a notch 63b1 for a part of the paper return Fi, 81 to protrude from below the support base 63; Notch 63 for a part of pressure release lever 76 to protrude from below the support base 63
c are formed respectively.

In the paper feed mechanism 62 described above, the feed roller 65 is provided above the paper feed section of the rotating cassette 35, while the paper feed roller 66 is arranged parallel to the feed roller 65 and in the feeding direction of the copy paper. These rollers 65 and 66 are arranged side by side at a predetermined distance from each other, and both rollers 65 and 66 are rotated in the same direction by an endless belt 67 that extends over the frame at one end thereof. A pair of roller arms 68 and 68 are provided between a support shaft 65a that rotatably supports the drawing roller 65 and a rotating shaft 66a that transmits rotational force to the paper feed roller 66 so as to sandwich both the rollers 65 and 66. is suspended horizontally,
By rotating these roller arms 68, 68 about the rotation shaft 66a, the drawing roller 65 is raised and lowered, and the drawing port roller 65 is brought into contact with and separated from the copy paper. ing.

Protrusions 68a, 68a are formed at the ends of the roller arms 68, 68 on the paper feed roller 66 side, respectively.
When the protrusions 68a, 68a are pressed downward by the paper feeding operating angle 70, the roller arms 68, 68 are rotated upward. The paper feed operating angle 70 is fixed to one end of the paper feed operating shaft 71, and rotates as the paper feed operating shaft 71 rotates.

A solenoid connecting plate 72 is fixed to the other end of the paper feed operating shaft 71. An operating shaft 73a of a paper feed solenoid 73 is connected to an elongated hole formed at the tip of the solenoid connecting plate 72, and the forward and backward movement of this operating shaft 73a is performed via the solenoid connecting plate 72 to operate the paper feed. ζ is now converted into a rotational motion on the shaft 71.

In addition, as shown in FIGS. 4(a) and 4(b), the paper feed roller 6
A mounting plate 75 is arranged below the mounting plate 7.
5 is attached with a reversing roller 74 that returns and conveys the copy paper by rotating in the same direction as the paper feed roller 66. The mounting plate 75 is provided to be rotatable in the vertical direction, and this rotation causes the reversing roller 74 to approach and separate from the paper feed roller 66. The rotating shaft 74a for transmitting rotational force to the reversing roller 74 is the rotating shaft 66 of the paper feed roller 66.
An operating piece 76a of a pressure release lever 76 having an oval shape is interposed between the rotating shafts 66a and 74a. The pressure release lever 76 is provided to be vertically rotatable about a shaft 76c, and when rotated downward, it presses the reversing roller 74 and separates it from the paper feed roller 66. It has become.

The connection piece 76b of the pressure release lever 76 is connected to one end 77a of the pressure release connection member 77, and the pressure release connection member 77 rotates horizontally around a shaft 77C (shown in FIG. 3). By moving, the pressure release lever 76 is rotated. The other end 77b of the pressure release connecting member 77 is connected to a pin of an operating shaft 80a of a paper return solenoid 80.
The pressing release connecting member 77 is rotated by moving forward and backward a.

Further, the operating shaft 80a of the paper return solenoid 80 is provided with a paper return plate 8 for returning the copy paper to the rotating cassette 35 side.
1 are connected. The paper return plate 81 is connected to the drawing roller 6
5 and the paper feed roller 66, the operating shaft 80 is
It is provided so as to be rotatable vertically around a shaft 81a provided above the pin position a, and when the operating shaft 80a is retracted, copy paper (not shown) is moved to the rotating cassette 35 side. It is designed to be rotated in the direction of return.

On the support stand 63 and on both sides of the drawing roller 65,
Paper detection switch 82 and paper out detection switch 83
The actuating pieces 82a and 83a of the switches 82 and 83 are arranged so as to face below the support base 63 through the notch 63a of the support base 63. The actuating pieces 82a and 83a of each switch 82 and 83 are pressed by the sheet feeding section of the rotary plate 34 in the lifted state to operate. Note that a notch (not shown) is formed in each of the vertical paper feeding section and the horizontal paper feeding section on the rotary plate 34 in correspondence with the operating piece 83a of the paper out detection switch 83. When there is no copy paper, the actuating piece 83a passes through the notch, so only the paper detection switch 82 is turned on without being turned on. On the other hand, when copy paper is loaded, the detection switches 82 and 83 are activated by the copy paper. Both are turned on.

Based on FIGS. 5(a) to 5(d), the operation when the rotating cassette 35 shifts from the horizontal paper feeding state to the vertical paper feeding state will be described.

As shown in FIG. 5A, in the horizontal feed position, the horizontal feed section of the rotating cassette 35 is located on the side of the paper feeding section of the rotating cassette unit 26 (27).
In this state, the moving block 50 and the holding member 52 constituting the moving means are located at one end of the guide shaft 51.

When the driving force of the drive motor 41 is transmitted to the pulley 46 via the first clutch 44, the pulley 46 rotates and the belt 48 starts to rotate, and as shown in FIG. The moving block 50 that is being moved is guided by the guide shaft 51 and moves to the other end.

The linear movement of the moving block 50 causes the rotary cassette 35 to rotate in six directions. Here, the rotating cassette 35 and the moving block 50 are connected, and the moving block 5
0 moves in a straight line, the rotation center of the rotating cassette 35 moves, but this movement is ensured by the arm 32 that pivotally supports the rotating cassette 35 rotating in the D direction using the shaft 31b as a fulcrum. will be done.

Note that the arm 32 is rotated in the D direction until the angle formed by the guide shaft 51 and the line X connecting the support shaft 50a and the support shaft 32a of the moving block 50 becomes 90''.

Next, as shown in the same figure (C), when the angle formed by the above line X and the guide shaft 51 exceeds 906,
Although the rotational direction of the rotating cassette 35 remains in the direction C, the arm 32 begins to rotate in the C direction. And the same figure (
As shown in d), when the moving block 50 reaches the end of the guide shaft 51, the actuating piece 50b of the moving block 50
The position detection switch 101 is activated. The control section of the copying machine 1 detects the operation of this position detection switch 101,
When this control section interrupts the transmission of driving force by the first clutch 44, the movement of the moving block 50 is stopped. In this state, the vertical paper feeding section of the rotating cassette 35 is directed toward the paper feeding side of the rotating cassette unit 26 (27).

On the other hand, the transition from the vertical feeding state to the horizontal feeding state in the rotating cassette 35 can be executed by rotating the drive motor 41 in the reverse direction and performing an operation opposite to the above operation. At this time, at the same time that the rotating cassette 35 takes on the horizontal feeding state, the switch actuating piece 52b of the holding member 52 moves to the position detection switch 1.
00 will be activated. Then, the control section of the copying machine 1 detects the operation of the position detection switch 100, and this control section interrupts the transmission of the driving force by the first clutch 44, thereby stopping the movement of the moving block 50. .

Here, in each of the above positions due to the above rotational drive, the end of the vertical paper feeding section in the vertical feeding position and the end of the horizontal feeding paper feeding section in the horizontal feeding position are positioned at the same position. Then, the paper feed mechanism 6
2 is maintained constant at each position. Therefore, there is no need to add a moving mechanism for the paper cassette or the pink-up roller, and the structure can be simplified and the cost can be reduced.

In this embodiment, the moving block 50 is moved by the belt 48.
Since the moving block 50 is moved quickly, each position can be switched quickly, and the operator's waiting time can be reduced as much as possible.

[Effects of the Invention] As described above, the rotating cassette drive mechanism according to the present invention is rotatable within the rotating cassette unit in order to switch between vertical paper feeding and horizontal paper feeding as necessary. The drive mechanism rotates a supported rotating cassette, and includes an arm that is pivotably supported at one end on a predetermined part of the rotating cassette unit and is rotatable in a horizontal plane; A rotary cassette supported and rotatably provided on a horizontal plane, and a rotating cassette unit rotatably connected near a corner between a vertical paper feed section and a horizontal paper feed section of the rotary cassette. This configuration includes a moving member provided on the paper feeding side so as to move linearly back and forth in a direction perpendicular to the paper feeding direction.

This makes it possible to selectively switch between the vertical and horizontal feed positions of the rotating cassette as needed, making it possible to increase the size of the paper feed device by equipping it with various paper cassettes, and to accommodate multiple paper cassettes. It is possible to prevent an increase in the size and cost of the device or complication of operation due to replacement depending on the situation. Furthermore, since the end of the vertical paper feeding section and the end of the horizontal paper feeding section of the rotating cassette are secured at fixed positions, there is no need to add a moving mechanism for the paper cassette or pickup roller, and the structure can be simplified. This has the effect of simplifying and reducing the price.

[Brief explanation of drawings]

1 to 5 show one embodiment of the present invention. FIG. 1 is a perspective view showing the drive mechanism of the rotational force cent unit. FIG. 2 is a front view schematically showing the internal mechanism of the copying machine. FIG. 3 is a plan view showing the paper feeding mechanism. FIG. 4(a) is a side view of the paper feeding mechanism, and FIG. 4(b) is a side view of the paper feeding mechanism.
FIG. 6 is a side view showing a state in which the paper return plate and the like are activated in FIG. FIGS. 5(a) to 5(d) are plan views showing the rotational movement of the rotating cassette, respectively. 26 and 27 are rotating cassette units, 32 is an arm, 3
3 is a paper feed base, 34 is a rotating plate, 35 is a rotating cassette,
50 is a moving block (moving member), 52 is a holding member (moving member), 51 is a guide shaft, and 48 is a belt.

Claims (1)

[Scope of Claims] 1. A drive mechanism that rotates a rotary cassette rotatably supported within a rotary cassette unit in order to switch between vertical paper feeding and horizontal paper feeding as necessary. an arm that is pivotably supported at one end on a predetermined portion of the rotary cassette unit and is rotatable horizontally, and a rotating arm that is pivotably supported at the other end of the arm and is rotatable horizontally. The cassette is rotatably connected near the corner between the vertical paper feeding section and the horizontal paper feeding section of this rotating cassette, and reciprocates in a direction perpendicular to the paper feeding direction on the paper feeding side of the rotating cassette unit. A drive mechanism for a rotating cassette, comprising a moving member arranged to move in a straight line.