JPS5978031A - Paper feed device - Google Patents

Abstract

PURPOSE:To make it possible to simply make the connection of a paper feed device with a main machine and as well the taking-out of a jammed paper, by attaching the body of the paper feed device to the main machine of an imaging device in a predetermined position, and as well by supporting the paper feed device with the use of a rail type removable pedestal. CONSTITUTION:The attaching of a paper feed device A onto a main machine B is made in such a way that front side rollers 123 are at first fitted into grooves formed in a pair of right and left horizontal rails 113 of a pedestal D, and a U-shape member 124 is pushed to make the rollers 123 override a projecting part 118 on the bottom of the rails after the member 124 is fitted into the upward facing sides of the rails. Then rear rollers 123 are also made to override in a similar manner, and a pedestal side projecting pin 115 is made enter into a pin receiving hole 116a on the side of the paper feed device, thereby a section 2 for receiving papers one by one and making the received paper standby, takes a position in a cassette loading port 101 in the main machine, and is stably jointed to the latter. Further upon jamming of a paper, a jammed paper is easily taken out by retracting the paper feed device.

Description

[Detailed description of the invention]

The present invention relates to an image forming apparatus9. Regarding the paper feeding device. For example, L′! When feeding paper into an image forming device H such as an electrostatic photocopier or a simple printing machine, a paper cassette insertion method is generally adopted. Insert the paper cassette into the cassette slot 1 of this machine, and pull the paper in the cassette one by one into the machine by the action of the paper feeding means on the machine side, and move to the image ψ formation fj11. For lees ((,), you can insert and remove the cassette by preparing several sheets of paper stock containing different paper sizes, paper qualities, etc.
The paper is exchanged with this machine in the cylinder 4! I can do Ko1. Alternatively, you can insert multiple cassettes 1-1 into the machine (from 11 to 9) and insert the J set.
Tatsumi 4R Button 1: I, I, Create - This is convenient because it has the advantage of being able to change paper for this machine. But! Maximum paper storage capacity per door for 11 paper drawers is 250.
There are about 500 sheets, so the example is 1.
i!
1! It was very tiring to have to continue replenishing paper.
Each time, copying, etc. is interrupted, and the machine's high speed cannot be fully utilized. Therefore, for example, 200
Some machines are equipped with a multi-sheet deck (or tray) mechanism that can store and feed a large amount of paper, such as 0 sheets, at one time, but this deck mechanism is a special feature built into that model. This is the mechanism for 117 of the image forming apparatus. In view of -1-, the present invention provides a cable (signal 1 spring) I
You can insert a cassette without selling it to a concubine.By physically inserting and connecting it to I'Jj in the same way as a cassette, you can continuously copy a large number of copies, such as 1000 or 2000 copies, without interruption until the end. It allows you to be really annoyed,
Lli'l'J will provide JIA with a highly reliable large-capacity automatic paper feeder q of a general-purpose unit type that can be widely used in combination with various paper cassette insertion type image forming apparatuses. 2. As shown in the figure below, the example device stops. (+) Schematic drawing of the device of this example and its connection to the image forming device H (mainly in FIGS. 1 to 3) FIG. It is a partially cutaway side view of a state in which it is connected to an image forming apparatus B (hereinafter abbreviated as this apparatus) such as a photocopying machine. Canton sheet of about 0 sheets Jn-) / Y descending type XJ that can load and store sheets at once (Large capacity consisting of a storage mechanism and a paper feed mechanism that feeds the stacked sheets one by one from -1- 1. A special unit 2 for transporting a single sheet of paper, which protrudes forward from the L section on the front side of the storage section 1 and directly enters the paper cassette insertion section 101 on the B side of the machine; ■It consists of a control circuit section, and C is a pedicle on which this machine B is placed, and D is a pedestal for connecting and holding paper feeder A to this machine B. This pedestal Dl
” As shown in Figure 2, the decomposition slope I)/lt is similar to -tL
The left and right navy blue frame sides 110 are connected by welding and screwing.
110 and the -1- side horizontal bar side il 1 unit 111, and the rear protruding horizontal lugs 112 formed on the left and right 7+fI of the horizontal frame side on the side of the side are connected by screwing the tip end to the husband. A pair of left and right water tl rules 113, 113, and the lower surface of the rear end of both rails (welded/screw 1] second 6) 5
Detoku 71 Shita Rino - Runo (through pedestal 114, and the horizontal adjuster type floor surface weight seat 11 provided on the left and right sides of the lower surface of the pedestal)
5.jJ5 and the left and right vertical frame sides 110 and 110 of the back frame (approximately the center)
tjJ! : Consists of rear force protruding pins 116 and 116. Each of the left and right horizontal rails 113 is a U-shaped channel rail with a cross section m6, and the LL is kn paper device i': (A's fire volume quick #IE, It!/ The bottom of Nobe 1 Iqjiff is longer than the Kozuki method. 117.
117 is a rail groove cover plate formed by bending approximately the front half of the left and right upper side of the two-way channel rail at a right angle to the side of the other side, 11
8 and 118 are protrusions formed approximately at the center of the bottom plate surface of each rail, and 119 and 119 are bending stopper pieces at the rear ends of the rails. Facing the above-mentioned pedestal, there are four outward facing lugs J formed at the upper and lower ends of the left and right vertical frame sides 110 of the vertical back frame, respectively.
20 on the cassette insertion 1'' side of this machine B, and the outer plate stops 122e122 on that side, by aligning them with each outer plate. Firmly position IN against pedicle C and swing firmly. The floor contact seat 115 of the pedestal leg 114 is brought into contact with the floor by appropriately twisting it forward or backward when attaching the pedestal to the machine B and the pedicle C. Four rotating rollers 123 that fit into the grooves of the left and right channel rails 113 are arranged near the four corners on the bottom plate surface of the large-capacity Hayabusa paper 1p storage section 1 of the paper feeder dA. Near the two rollers on the right side of the rollers, there is a substantially U-shaped downward y shape that extends one circle on the upward side of the right side channel rail 113 on which the rail groove PGT plate 117 is not formed, as shown in the third figure. Determining members 124 (made of synthetic resin, for example) are provided. To attach paper feeder A to machine B, attach the bottom plate surface to the paper feeder within 71η of the pair of left and right underwater channel rails 113 of the pedestal firmly attached to machine B and pedicle C. ↓ Of the two rollers 123, first fit the front left and right rollers, and also fit the downward U-shaped member 124 near the right roller to the upward side of the rail on that side to push the entire body forward to the paper feeding device. On the way, the front right and left rollers are made to ride over the protrusion 118 of the rail bottom plate and are further pushed forward. Next, move the rear left and right rollers to the left and right rails i1, respectively.
1 ~, and the downward U-shaped part near the right roller old 1
24 to the side facing rail 1 on that side, and connect device A.
is further pushed toward 11j, causing the rollers on the left and right rear sides of 1-1 to also ride over the protrusion 118 of the rail. [Sheet paper that protrudes to the front of paper feeder A as paper feeder A is pushed in the +111 direction] Sheet transport/special unit 2 is placed in the tray in cassette I/insertion 1 101 of this machine B. Proceed to the second side horizontal frame side 111MIL of the vertical and back frame of the seat. When the rollers 123 on the rear left and right sides or the protrusions 118 on the rails are climbed over, the front plate of the large paper storage section l of the paper feeder A is attached to the horizontal frame sides J and 11 of the vertical back frame of the pedestal. At this point, the paper feeder f' on the pedestal side (the rear protruding pin 116 for left and right positioning is placed on the paper feeder A side) The corresponding pin has fully entered the corresponding pin entry hole 116a, and the single-sheet transport/f-1t unit 2 of the paper feeder A is inserted into the feeder insertion slot 101 of the machine B at the proper position 1°1. Insert the cassette I/insertion 1.
It will be in a fitted state with the colot. Furthermore, since the rear left and right rollers 123 have climbed over the protrusion 118 of the rail, the device A is returned to the 1st floor by the protrusion and is stably held at the final forward position. This paper feeding device A is mounted on the pedestal rail i-13, and by moving the front slide, the machine B
Connection to is completed. To position paper feeder A with respect to machine B, first attach the pedestal to machine B, and then attach the outer panel of machine B with screws 12.
1Φ121 with high accuracy, the final forward position of device A is achieved by contacting device A with the vertical and back frame of the pedestal, and the horizontal frame side Ill on the second side, and the positioning of device A in the left-right direction (direction perpendicular to the rail) is Left and right pins 116 and 13.6 on the pedestal side
and the pin entry hole 116a on the device A side, and the rail 113 and the '? 7 It is made with high precision by engaging with the August 124 and 124 with the F-oriented U-shaped j' on the A side. Note that the pin 116 may be provided only at one location on either the left or right side. The height direction is screw 121, which is attached to the machine B on the L-marked stand.
Mounting by 121 is done by positioning and rail surface. In this way, just by sliding the two pair of pedestal rails t l 3 forward to the paper feeder and sliding it forward by 1 minute, the insertion and connection of device A to the main machine cassette r, +10.1 can be accurately prevented. 7x without. Also, after contacting the N0 paper device A with the main machine, all four rollers 123 are located in the area where the cover plate 117 of the rail 3.13 is located; 1) From the rail of 1Δ Floating movement is blocked.When clearing a jam in the cassette insert FI L Ol of this machine B, the paper feeding device
Move the rear left and right rollers 123 over the protrusion 118 until they come into contact with the springboard 119 at the rear end of the rail, and then slide the rail back by 70 degrees. Then, the single-sheet transport/special unit 2 of the apparatus A is in a state where it is removed from the cassette insertion slot of the machine B, and the jam can be easily cleared. After processing the JAT, push device A forward on the rail at 711, and device A will be 1 again compared to machine B. '#Continuation fuj. In addition, this machine B in the illustrated example has paper cassette insertion 11 in two stages, upper and lower, 1
02・l Ol (It is a lifted type, and in this example, the paper feed device 1qA is
The conveyor tube special unit 2 for one sheet of paper is inserted and connected. If necessary, press the paper selection button on the B side of the machine to change the paper feed to - to the 2nd cassette side) and E to the 2nd tier cassette side. It can be used by feeding it into the machine B.The lower end of the white seatback 44.t is attached with screw 122 and the pedisc C
Instead of being hooked to the pedicle, a hook may be formed and the hook may be hooked to the cross beam of the male side of the pedicle bottom plate. (2) The vertically movable paper storage mechanism 3a*3b@3c@3d (Figs. 4 to 6) is composed of four plates: a bottom plate, a front plate, a right side plate, and a left side plate, and the rear and top surfaces are open. Horizontal and vertical chassis with y, l↓1
14.4 ('4S7.91':A) is chassis - right side plate 3
A channel rail with a cross-sectional U-shape is placed vertically facing each other on the front side of the inner surface of the left side panel 3d. The roller handle plates 6 and 6 are fixed in the assembly direction, and a pair of upper rollers 7 and 7 are pivoted on the outside of the plate 6. The rollers are fitted and engaged in the left and right vertical channels 1/-4° 4 grooves.Therefore, the paper storage table 5 is fixed to the rail 4φ4 and is a seven-F movable mountain. Chassis - inside r part of right side plate 3C) (=1 +-
1.Paper storage stand that held -)? The rotation of the motor iii+ is increased by the lifter f motor (hereinafter abbreviated as lifter motor) by the reduction gear box 9 (Fig. 10), and the reduction gear box's fa/r null shaft 10 is used as the driving shaft. 4. Protrude outward from the inside of the sea right side plate 3c, and fix the sprocket 11 to the protruding end. 12 and σ13 (Figure 6, Figure 8) are the left and right chassis side plates 3d.
- Husband/J 1li111 was placed between F 1tiJ3γX3 on the iii+ side of 3C and between F1; on the four corners. l (2 rows and 2 tree rotation axes, zono 2 tree rotation axis 12
, large for 1.3)/Both <,: sprocket on the ja side]
4 fists 14.15φ15 hard, n'1 and +'+i! l
There is a death-C. Subro Nket 15 p 1.5 is the axis [
It may also be tilted to 3 for free rotation. Meto's turn
Pesuke 12's right *11 is Nobu L (shite chassis - you side 41y)
It is made to protrude to the outside of 3C, and the protruding shaft part has a one-,
7. Install the sprocket 7 via the flange 16. On the 1st, the chain is suspended between the sprocket met 17 of the drive shaft lO and the sprocket met 17 on the outward protruding end of the lower rotating shaft 12, and 19 and 19 are the parallel rotating shafts of the 1 and 2 trees. ■A pair of left and right vertical chains 19 and 1 are suspended between the left sprockets 15 and 14 of 3ψ12 and between the right sprockets 15 and 14.
The left and right vertical slint holes 3ee3e formed in the chassis front plate 3b by extending the ends of the left and right side plates of the paper storage table 5 (FIGS. 6 and 8) are also part 19a (FIGS. 6 and 8) of the paper storage table 5. The arm plate 5a, which is not exposed to the outside, is firmly fixed to the arm plate 5a. When the lifter motor 8 is driven in the normal rotation a (Fig. 4), its rotational force is transmitted to the lower rotating shaft 12 via the sprocket 21.it → churn 18 → sprocket 17 → one-way crank 6. As a result, the left and right vertical chains 19, 19 rotate in the upward direction of the platform 5, causing the platform 5 to move against the rails 4, 4. The direction of rotation of the sprocket 17 is the direction in which the one-way flanch 6 is idling, and the shaft 12 is in the direction in which the motor 8 is reversing, and no positive reversing force is applied to the shaft 12. Left and right due to the self-gravity of the table 5 side as it rotates) Vertical chain 19, 19, Suff' T: I '7 y l, 15, 1
4,], 5-14, the upper F rotor 13#l2 rotates in the opposite direction, and the table 5 moves downward along the rail 4φ4. 20 (Fig. 10) A motor tab fixed to the rear end of the rotating shaft of the beam lid motor (a toothed disc for the /- key, 21 is a spring attached to the toothed disc in the direction of constant engagement, and an electromagnetic suction device N22 This is a pawl plate that escapes from the gear cutter circle VR20 and moves when energized.Therefore, the current is cut off from a moment before the energization to the lifter motor 8 starts to drive the motor in forward or reverse rotation. The electromagnetic suction device 22 is energized until a little later, during which time the claw plate 21 escapes (<7) and is held in place to determine whether the motor 8 rotates forward or reverse. Outside the period, the morph holder is prevented from rolling 1-h by the engagement of the claw plate 21 aligned with the mountain-cutting disk 20. As a result, the platform 5 at the holding position IF (midway of the vertical rails 4, 4) is The self-claw force of the paper P placed on the right side and the second one prevents it from sliding down by itself while causing the rotary shaft of the motor 8 to idle, and the table 5 is lifted.

[Stably held in position j. 23 (Figs. 7-11 and 7-12) is a paper detecting rocker 8 in the shape of a flat road, which is rotatably held on a bearing inside the upper corner of the front side of the chassis right side plate 3c. A downward-facing protrusion 23a provided at the tip of the lever, and a second protrusion 23b that also points downward but has a shorter protrusion length than the first protrusion 73a.
and the third protrusion r- in the 1- direction provided in the middle of the 1/bar 23.
230, and an upward protrusion 23d provided at the base of the lever. The first downward protrusion 23a is in contact with the top two sides of the J7i paper sheet P on the stand 5. When the last sheet of paper on the table 5- is fed and the first protrusion f23a falls into the through hole 5b on the white 5 side, the second protrusion 23b hits the surface of the table 5- on the way, and the lever 23 It functions to prevent rotation. The third 4-direction protrusion 23c is the chassis front 3
The second surface of the sheet of paper disposed on the inner surface of the -1 side of b faces the -1 over-brightness detection sensor S2. Fourth upward protrusion 23
d is the base Q(l) of the lever 23 inside the chassis right side plate 3C.
! A photoelectric paper top-facing sensor consisting of a light source and a light-receiving element disposed above the sensor S1 is located in the optical path of the bell sensor S1. When the L side position of the stored paper P loaded on the stand 5-1- is within the predetermined upper surface level range PH-PL (FIG. 12), the first downward protrusion 23a comes into contact with the paper 1-side. In this case, the lever 23 is held in a substantially horizontal position within a certain angular range α of pJ4, and the fourth upward protrusion 7-23d blocks the optical path of the photoelectric sensor S1. As a result, the surface of the paper is placed at a predetermined level on the paper.
Being within L is 46! be known. JJ'114i1 on f; 5: When the sheets P are sequentially fed out one by one from the operation ry l- of the sheet feeding mechanism, which will be described later, they gradually descend to the second side position (of the stacked sheets). Following this, the lens 23 sequentially tilts and rotates. And paper 1
- When the surface position reaches the limit level PL, the optical path of the sensor Sl, which had been blocked by the fourth protrusion i'23d of the lever 23, is completely opened, and the upper surface position W'i of the stacked paper drops to the allowable limit level PL. Based on this signal, the aforementioned electromagnetic suction device 22 of the lift motor 8 is energized via the control circuit, the pawl plate 21 escapes from the gear cutting disc 20 of the lift motor 8, and then the lift motor 8 is energized in the forward direction a, the table 5 is moved with its upper load, and the entire stack of sheets P is lifted and moved. This 4
, 11 - The side of the stacked paper P is shifted by 1 to - by the movement. Accompanying this, the lever 23 in the inclined position rotates back and the optical path of the sensor S1 is interrupted. After a predetermined period of time has elapsed from this optical path disconnection 5, the power to the lifter motor 8 is cut off via the control circuit, and then the electromagnetic pull device 120
Power is cut off. In this way, the stacked paper P of combination 5-I- goes to, for example, 20 and 30.
To σ, which consumes about 100 sheets, the table 5 is 1Jf
The movement is automatically executed intermittently and the +rt loading paper [. The surface position level is always at the predetermined 21 volume range level P H ~ P
Edited by L. Jj'j/Kai Paper P's accommodation expenses are progressing, and there is also an intermittent y1. Repeat this, and when the L of the table 5 itself faces the stacked paper and enters the bell range P H ~ P L, and the last sheet of paper on the table 51 is fed, the lever 23
The first downward protrusion 23a falls into the through hole 5b formed in the base 5, and the lever 23 is tilted and rotated αLL until the second downward protrusion 23b hits the top surface of the base 5 and is received.
L, the fourth downward protrusion j'23d of the lever is completely removed from the optical path of the sensor Sl. It is detected that there is no paper on the table 5'2 based on the signal from the sensor Sl at this time and the signal from the limit position sensor S3 during the movement of the table 5 which will be described later. S3 and S4 (Fig. 8) are the upper surfaces of the stands 5 disposed at the upper and lower end positions of the right slit holes 3e of the vertical slits I and holes 3e and 3e on the outer surface side of the chassis front plate 3b. 1 movement-
) A two-limit chain sensor (for example, a microswitch) and a downward movement lower limit position sensor (the same). When the table 5 is moved upward intermittently and sequentially as described above, and the upper surface of the table 5 itself reaches the lower limit level PL of the paper upper surface level range, the y-lowering 1 support chain of the table 5 is locked. The protrusion 5C formed on the connecting arm 5a is the -1- limit position sensor S.
3, the reaching of the upper limit position of the platform 5 is detected, and the signal thereof is input to the control circuit. At this point, there is still some paper P remaining on the table 5, and when all the remaining paper is fed, a paper out signal from the sensor S1 based on the large inclination αLL of the lever 23 is sent to the control circuit. is input to. The lower limit 4 sensor S4 is turned on at J' 5 C when the platform 5 is lowered one step and reaches the F limit position.
It is detected that the lowering limit of 11"1 has been reached, and the signal is input to the control circuit. The sensor S2 for detecting too much 1 layer on the surface of the paper will be described later. (3) Kasu paper for one sheet of paper 4115 24 (Figures 5 and 6) is the inside lower fH of the chassis left side plate 3d.
The rotation of the morph shaft is accelerated by the reduction gear box using the 10 paper feed motor (hereinafter abbreviated as the paper feed motor) held in Jl, and the final shaft 26 of the reduction gear box is Protrude from the inside of the left side plate 3d as a drive shaft to the outside,
A first swimming pulley 27 is fixed to the projecting end. 28 (Fig. 5-13) is the outer surface L of the chassis left side plate 3d.
This pin 1111 is a pin shaft implanted in the section, and the FF12 timing pulley 29, first gear 30, and encoder gear cutter disk 31 are concentrically and integrally connected to this pin 1111 and are freely rotatably supported. A timing belt 32 is suspended between the first timing pulley 27 and the second swimming pulley 29. Therefore, when the paper feeding morph 24 is rotationally driven, the three-part pulley 29, first gear 30, and gear cutting disk 31 are rotationally driven. 33 (Figs. 6 and 7, 11-13) is a paper feeding support shaft which is disposed on a part of the left and right side plates 3d and 3c so as to freely rotate between the two side plates 3de3c, and the left end of the support shaft is extended and protruded to the outside of the chassis left side plate 3d, and a one-turn clutch, a spring flanch 34, and a second gear 35 are mounted on this protruding shaft. The second gear 351 meshes with the first gear 1 and 30 described above. The one-turn clutch 34 is normally in the taratch-off state, with the claw arm 37 of the first electromagnetic suction device 36 engaging the protrusion 34a of the outer ring, so even if the first gear 30 rotates, the second gear 35 is not engaged with the shaft. 331- is simply rotated idly, and the shaft 33 is not rotationally driven. When the magnetic attraction device 36 is energized for 111fJ + and the outer ring is released from the outer ring by the claws 37, the clutch is turned on and the h'52 gear 35 and the
3 is combined with the shaft 33 to rotate the shaft 33 by 1v. The shaft 33 rotates approximately one rotation, and the protrusion 34a of the outer ring
When it is hooked to the + claw arm 37, the crunch is off, and the second gear 35 becomes free to rotate to the shaft 33, and the rotation of the shaft 33 is stopped. It is driven to rotate intermittently one rotation each time it is energized for a moment. 38 and 38 (Fig. 7) have two openings on the left and right sides of the paper feeding support shaft 33 that restrict the movement of the shaft 33 in the longitudinal direction, support the base freely in rotation, and have a generally downward-facing cross section with the tip facing forward. 39 is a paper feed roller shaft rotatably supported by bearings at the ends of the pair of left and right arms, and 40 is a paper feed roller attached to several positions of the shaft via one-way clutches 41, respectively. , 40a is a way I roller fixed to the shaft 39, and 42a is a paper feed roller support arm.
/,, Timing pulley 42b fixed to the paper feed support shaft 33 part in the channel of the arm base of 38, 38
is paper feed roller Tsukuda 139 in the channel on the tip side of the same arm.
The timing pulley 42c fixed to the part is a timing belt suspended between both the pulleys 42aΦ42b. 45. 45 is the loaded paper P lifted and supported by the stand 5.
tt (1
It is a sheet separation claw. 1 minute on the left and right? JI 11 (45
- 45 is a fixed base p (+iQ side side of the a side plate 88 and movable side plate 86) for regulating the side of the stacked paper, which will be described later. Accordingly, the axis 33
During one rotation of the pulley 42a → timing belt 42'
c→Pulley 42b+candy paper roller shaft 39→kn #JThe roller 40 is rotationally driven in the paper feeding direction through the pulley 42b+candy paper roller shaft 39→kn Only one separation claw 45.45
He overcomes this and is sent forward. The weight roller 40a functions to bring the paper feed roller 40 into pressure contact with the two sides of the stacked paper with an appropriate force. 46 (Figs. 5 and 13) is a third gear (idler) which is rotatably held by a pin shaft installed on the outer surface of the left side 11i3d of the chassis and meshes with the rG l gear 30 mentioned above. 47.50 is the chassis left side plate 3d and the auxiliary side plate 48 (seventh
・The fourth gear and clutch (spring clutch) are attached to the shaft 49 which is freely rotatable in the bearing shown in Fig. 8), and 51 is the Clara 4-
It is made of 50 Auklinks with fine teeth formed on the outer circumferential surface. The fourth gear 47 is in mesh with the third gear 46 652a
is a second suction device that swings a claw arm that is attached to the gear rear rough ring 51. Tsume Arno, 5
When 2a is not in communication with the second electromagnetic suction device 52, it is held by a spring in a state that is Q IJ from the gear cutting rear luff ring 51 of the Clara+50, and therefore, in this state, the clutch 50 is in the on state. Z (34 gear 47 is on shaft 49
is combined with Conversely, when energized, the clutch 50 is held off by the gear cutting rear outer ring engagement of the claw arm 52a, and the fourth gear 47 is free to rotate relative to the shaft 49 fjE.
+ held. 53 is a fifth gear fixed to the shaft 49, 54 is a sixth gear (idler) meshed with the fifth gear, and 55 is the sixth gear.
This is a conveyor roller shaft gear (seventh gear) that meshes with the gear. Reference numeral 56 (Figs. 6, 7, and 13) denotes a first conveying roller shaft, which is formed by bearing plates 3d formed on the front sides of the left and right side plates 3d and 3C of the chassis by extending and protruding their corner portions forward, respectively. - The conveyor roller support gear 55, which is the seventh gear, is fixed to the left end of this support 56. Reference numeral 57 denotes an eleventh conveyance roller attached to this foot 56 via a one-way clutch 58, and 59 (Figs. 6 and 14) denotes a driven presser which is brought into contact with one of the conveyance rollers 57 with an appropriate pressing force. I'm Laura. 1 to 1 of the driven presser rollers
160 is supported between the protrusions 63, 63 formed on the left and right slopes on the upper surface of the upper kite plate 6J of the lower paper guide plates 61, 62 disposed between the paper feed roller 40 and the ifl feed roller 57. The driven presser roller 59 can freely rotate on this shaft 60. and each driven presser roller 59
is in constant contact with the -L surface of each lower conveyance roller 57 through a notch formed in the upper guide plate 61. When the second electromagnetic attraction device 52 is not energized while the paper feed motor 24 is being rotated, the clutch 50 is on, so the rotation of the first gear 30 accompanying the rotation of the motor 24 is the first. 3
Gear 46 → 4th gear 47 → clutch 50 → shaft 49 → 5th
14th gear on the path of gear 53 → 6th gear 54 → 7th gear 55
a is transmitted to the feed roller shaft 56, and the 11119th feed roller 5
7 is rotationally driven in the paper feeding direction. Also, the roller 5
7, the driven presser roller 59 also rotates. On the other hand, the second electromagnetic attraction device 520 is energized l111. Chi 50 is off, so 4th gee 1 47 is suke 49-1
．． : is idle and the shaft 49 is not driven to rotate. That is, the eleventh general feed roller 57 is not rotationally driven. (4) Connect the 65t base of the special unit 2 for transporting one sheet of paper to the first transport roller shaft 56,
Chassis of large-capacity quick paper storage section l - Front plate 3b1 - Machine 1
(An 11-sided box-shaped conveyor r'' arranged so as to protrude forward from
; 1 (base body. The width and thickness of this flat box-shaped 2 human body are the width and thickness of a thin paper cassette for accommodating 250 sheets);
The "length" method is a slightly longer dimension than the depth dimension of one cassette inserter on the B side of the machine. Further, the flat box-shaped base body is free to swing about the first conveying roller 56 from a substantially horizontal position to a downward position of about 10° (see FIG. 4). Therefore, if the cassette slot on the machine B side to which paper feeder A is connected is for a thin paper cassette for accommodating 250 sheets, the cassette i/slot will hold one sheet of paper whose main body is the flat box-shaped base 65. Destination conveyance/standby γ1; 2 are fitted together at the same time as the cassette is inserted. Also, since the base body 65 has a 1-degree swinging angle around the axis 56 as shown in the figure, it will move slightly when it enters the cassette yl/insertion unit 2 of the 1# feeding φ waiting R section 2 for one sheet of paper. Even if there is a deviation in the entrance angle, the deviation will be corrected naturally as it advances, and eventually the paper transport 9 standby section 2 will smoothly fit into the cassette [insertion 1] in the correct position and posture. . 6 row 66 (Figures 4 and 5) Paper feeder t'll A
Thick paper cassette for storing 00 sheets (wooden (911 side example))
o t 4ko” 2? Dedicated single sheet transport unit 2
In order to adapt the ``If! /, (1'l) This is a removable downward diagonal cam-shaped spacer plate that can be used separately. In other words, in this case, the paper feeder 6A is connected to the machine B
If you move it one step forward along the rail 113-113, you will see the left side of the door edge of the skein/skein insertion slot 101: 1fB
4-1-Tiij of left and right inclined cam type smears plate
(IllI fd+ surfaces 66a and 66a come into contact (Fig. 15).At that time, the paper feeder A is continuously pushed and the power 11-jumps +1rii 66a and 66a are inserted into the cap @IZJ 101's -1"t& As a result, an upward rotational force acting on the flat box-shaped base 65j with the axis 56 in the middle and - is applied. Due to the lifting action of 66*66, the base body 65 naturally changes its posture approximately in the downward direction of the water, and its tip smoothly enters into the internal force of the cassette inserter 101, and then the spacer plate 6B-66@ end is inserted into the cassette inserter 101. The base 65 is transferred to the bottom plate surface of the inserter 101 and is approximately 1)
He is lifted up to the position and enters. Whether the cassette slot 101 on the machine B side facing the machine is for a thin paper cassette that accommodates 250 sheets or a thick paper cassette that accommodates 500 sheets, the paper 1 of paper feeder A will eventually be loaded. The sheet conveyance/special unit 2 is placed in the cassette i/insertion slot on the machine B side, and the upper surface of a second conveyance roller 68a (described later) on the base 65 side of the conveyance/special unit 2 is fed into the machine B side. A cam plate for specifying the paper size to be used, which will be described later and which is in pressure contact with the lower surface of the freely rotating auxiliary roller 103a of the paper feed roller 103 which is the means, and which protrudes forward from the front plate of the base 65, is a group of paper size detection switches on the side of the machine B. 104, and the machine B is properly connected to the paper feeding device (FIG. 1). Reference numeral 67 indicates a second portion disposed inside the flat box-shaped body 65 on the tip side.
, which is an axis parallel to the first conveying roller axis 56. This shaft 67 has its left and right ends connected to the base 6, respectively.
Vertical long holes 65 formed in the left and right side plates 65a and 65b of 5
e (Fig. 16), the bearings 67a, 67a, which are fitted in the bottom slide freely, are rotatably supported, and the retaining spring plates 67b (Fig. 7) are normally arranged in left and right rows. The bearing 67a◆67a is forced to the -1 side by the elongated hole 65.
is lifted until it is received by the upper end of e. 68a and 68b (FIG. 7 = 14) are a plurality of second conveyance rollers attached to the conveyance roller shaft 67 of the second distribution 2. 68a is connected to shaft 6 via one-way crank 68C.
7, and 68b is a roller that is rotatably attached to the shaft 67 and has a slightly smaller diameter than the roller 68a. The upper surface of each of the second conveyance rollers 68a and 68b shown in 1- is exposed to the outside through a through hole formed in the surface on the tip side of the base plate 65c. When the paper feeder A is connected to the machine B, each of the rollers 68a and 68b is rotated freely (eg, The roller 68a is placed opposite to the lower surface of the roller 103a made of acetal, and the roller 68a is in contact with the lower surface of the roller 103a.
b, and as the spring plate sinks, both 68a and 103a come into pressure contact due to the reaction force of the spring plate. roller 6
Since the roller 8b has a slightly smaller diameter than the roller 68a, it faces the free rotating roller 103a of the pair I right paper storage roller 103 with a small gap therebetween. 69 (Figs. 7 and 17) is a timing pulley 69 that is freely rotatably provided approximately in the middle of the second 1n feed roller 67.
a is for the left thrust 1 of that pull, 69b is for the right thrust l-It:Mede, both thrusts l-tl 2nd 69a/6
The interval 9b is larger than the length of the pulley 69=J method. 69c is a washer loosely fitted to the shaft 67 on the right side of the pulley 69, and 69d is a coil spring compressed between the washer 69c and the left thrust stop 69b. Therefore, the pulley 69 is constantly urged toward the left thrust stop 69a via the washer 69c by the force of the coil spring, and is held in a compressed state between the left thrust stop 69a and the washer 69c, and the pulley 111. A friction hold-slip mechanism (friction clutch/punch mechanism) is constructed. Reference numeral 70 denotes a timing pulley 71 fixed to a substantially intermediate position of the first conveying roller shaft 56 in correspondence with the above-mentioned pulley 69.
is a timing bell suspended between this pulley 70 and the second conveying roller 167. When the first conveyance roller shaft 56 is rotated while facing, the pulley 70→bell I/71→pulley 68→"-pulley friction holding force of the friction clutch mechanism→second conveyance roller shaft 67
→The rotational force is the second J in the path of the one-way clutch 68c.
It is transmitted to the It2 feed roller 68a, and the roller 68a is rotationally driven in the paper feed direction. However, if the rotational load force of the second +1 feed roller 68a is greater than a certain set value, even if the first feed roller shaft 56 is rotationally driven, the second feed roller shaft 67
The side pulley 68 is the left thrust stopper 69b and washer 6.
Slimp rotation occurs against the frictional force between 9c and II
21st with +11167 points! lil feed roller 68a
is not forced to rotate. The effect will be explained in a separate section. 73 (Figures 7 and 14) is a flat box shape (left side of body 65,
Both side plates 65a and 65b) are provided with bearings J'v 65f and 65f formed by extending the side plates upward. It is a drainboard-shaped paper guide plate of the mountain, and is always kept tilted down.By tilting it down, the first
The second conveyance rollers 68a and 68b include the second conveyance roller 57.
Paper transport II that leads to! An interstitial passage is formed. 74 (Figs. 7 and 18) is a flat box-shaped plate array for specifying the paper size to be used, which is arranged in the space on the front end side of the body 65, and is exposed on the outer surface of the right side plate 65b of the base body 65. Among the various size scales 76 (Fig. 16) displayed on the dial surface by turning the digit size dial 75 (Fig. 16) by hand, the scale of the paper size loaded and stored on the stand 5J- of the paper storage section 1 is indicated by the index 77. , the cam protrusions of the combination corresponding to the size protrude forward from the front plate 65d from the through hole formed in the front plate 65d of the base body 65. Before connecting paper device A to machine B)/be sure to perform or check the force J and plate protrusion that protrudes forward from the front panel 65d in response to the paper size specification using the dial. When the paper feeder A is connected to the machine B as described above, the switches in the paper size detection switch array 104 on the machine B side are selectively set to the suppressed state.This causes the control circuit on the machine B side to be suppressed. The paper size conditions to be used are automatically set. 78a to 78k (Fig. 7-18-19) are set to the first conveying roller shaft 56 in conjunction with the switching 4'lr operation of the is dial 75 shown in -. This is a mechanism for applying and releasing a rotational load, and this will be explained in a separate section.S5 and S36 (Fig. 607) are the 14th!
The first and second paper sensors (for example, microswitches) are arranged at two positions, one at the first conveyance roller 57'8 between the first conveyance roller 57'8 and the second conveyance roller 68a and m2m conveyance roller 68a#68b, and at a substantially intermediate position. (5) Control circuit, In addition, Fig. 20 is a block diagram of the main control circuit, and Fig. 21 is a control circuit for the beam morph 8.These circuits are connected to the chassis - left and right side boards as printer I and circuit boards 79a and 79b (Figs. 4 and 5). One piece is held on the outer surface of 3d and 3c.The transformer and the like are installed on the chassis bottom plate 3a, but are omitted from the figure.80φ8l-82 (Fig. 6φ7) Front plate 3
b. A cover that hides the outer surfaces of the right side plate 3c and the left side plate 3d, respectively, and can be attached and detached with screws or the like. Reference numeral 83 denotes an upper cover for closing the -1-plane opening of the chassis, which can be opened and closed freely around a pivot 84 (FIGS. 4 to 6) on the tip side. Reference numeral 85 denotes a box-shaped opening/closing door disposed between the rear surfaces of the chassis 11, and the hinge 85 is located on the rear vertical side of the left side panel 3d of the chassis.
It can be opened and closed freely around a (Figures 5 and 7). This box-shaped door 85 is made of transparent or colored transparent synthetic resin.
Even when the door 85 is closed, the amount of paper on the internal tables 5 and J2 can be visually confirmed. MS (Figs. 1, 8, and 9) and TE D are a main switch and an indicator lamp arranged on the 42 sides of the chassis 4 plate 8 which is attached to the right side plate 3c. S7 (Figures 1 and 4) is a join/swift that detects when paper feeder A is connected to machine B, and is permanently installed near the front side of the chassis right side panel 3c. . When the paper feeder A is connected to the machine B, the paper feeder Rt' is pressed by the tip of the positioning pin 116 on the sitting side of the paper feeder base, which is fitted into the positioning hole 116a on the A side, and turns on. is held, and the control circuit is manually informed that paper feeder A is connected to machine B. S8 (FIGS. 1, 4.7 to 9) is a door switch supported via a swing lever 89 near the rear side of the chassis right side plate 3c. When the door 85 is closed, the door 85
The door 8 is pressed by the protrusion 85b and held in the on state.
When door 5 is opened, it is turned off, and the door close signal or door open signal is input to the control circuit. However, this door suite
In case S8, the decorative plate 81 on the chassis right side plate 3C is attached 7
fij, and only when M83 is closed, the protrusion 85b of the door 85 closed by the protrusion 83a on the 81Φ83 side (the protrusion on the decorative board 81 side is omitted in the figure) acts. It is positioned and held in the desired position. When the fat plate 81 is removed or the top cover 83 is opened, the door 85
Even when the door is closed, the swift $8 is held at a position far from the door protrusion 85b (as shown by the two-dot chain line in FIG. 4) and is not turned on. Reference numeral 90 denotes a light receiving element Cds for detecting paper out, which is disposed inside the bottom plate of the cell I/insertion port 101 on the B side of the machine, inside the flat box-shaped base 65 of the single sheet conveyance/special unit 2. This is a light source lamp arranged in a corresponding manner. When this lamp 90 is lit, the light is emitted through the through hole drilled in the bottom plate 65e of the base 65 and into the cassette I.
・The light receiving element C passes through the through hole drilled in the bottom plate of the insertion port 101.
Used for dS. 86 (Figs. 7 to 9) is a movable side plate that is freely supported by a bracket 87 on the inner surface of the left side plate 3d of the chassis. The pressure N1 between the chassis and the fixed reference side plate 88 on the inner surface of the right side plate 3C is adjusted to the width size of the paper to be used. The stacked sheets are loaded and stored on the stand 5 between the side plates 88 with the front side of the paper abutting against the inner surface of the chassis front plate 3b.The stand 5 has a roughly two-part structure consisting of a front half plate 5d and a rear half plate 5e. Yes (Figs. 6 and 7), the latter half i'?lt plate 5e can be freely attached to and detached from the first half fζ85d. (6) Operation (sequence) Fig. 22 shows the overall flowchart of the device operation 1. Second
Figure 3 is mainly 'f? Lowering type paper storage table mechanism 47) Operation-Y Loacher 1., Fig. 24 mainly shows the operation flowchart of the paper feed/conveyance/standby mechanism for one sheet of paper l., Fig. 25
The figure is a drive timing chart of the lift lid motor 8. a. Mount the paper feeder A on the rail 113 of the pedestal attached to the wooden board B in the manner described above, turn the paper size dial 75 to align the scale 76 of the paper size to be used with the index 77, and then turn the paper feeder A onto the rail 113 of the pedestal attached to the wooden board B. Connect to wooden board B. This turns the joint switch S7 on. In addition, for the control circuit of the wooden board B, the paper size condition to be used is the wood JJJt which is selectively pressed by the cam plate 74 of the dial shaft.
It is input by the switch 104 on the B side. Next, turn on the main switch MS. Display lamp LE
D lights up blinking. The out-of-paper lamp 90 lights up, and light is supplied to the CdS on the B side of the machine. b. When the door 85 is opened to store paper, the door switch S8 is turned off, and this signal de-energizes the electromagnetic suction device 22 of the lifter motor 8, causing the claw plate 21 of the motor to
The multiplication by 1 is canceled. After this release, the reading motor 8 is energized in the reverse direction. This causes the paper storage table 5 to move downward. When the protrusion 5c on the platform 5 side comes into contact with the platform lowering position detection sensor S4 due to the downward movement of the platform 5, the sensor S4 is turned on. The power to the lifter motor 8 is cut off by this ON signal, and after a period of time (motor stop time) for the reading motor to come to a complete stop has elapsed, the power to the electromagnetic suction device 22 is cut off, and the claw plate 21 stops the motor 8. Latching: In this state, the platform 5 is stopped and held at the lower limit position. If the previously used paper is stored on the stand 5 and is different in size from the one to be used this time, remove it, open the J-lid 83 and move the movable side plate 86 to the one to be used this time. Reset the paper in the correct position according to the paper size. Then, for example, about 2,000 sheets of paper P to be used are stored on the table 5''. After storing C1 paper, first close the top lid 83, then close the door 8.
Close 5. This turns on the door switch S8, and the signal energizes the electromagnetic suction device I22 of the lifter motor 8 to release the motor.Then, the motor 8 is energized in the forward rotation direction, and the moves by -1-1. d. Due to the M movement on this table 5, the two sides of the stacked paper P eventually reach the lower limit level PL of the paper-upper surface level range PL-PH. At that point, the optical path of the sensor S1 faces the fourth - of the lever 23 and is blocked by the protrusion 23d. When a predetermined set timer time (the time when the upper surface of the stacked paper P almost reaches the lower limit level PH due to the continuous movement of the table 5) has elapsed from the time of that signal, the power to the motor 8 is cut off, and then After the motor stop time has passed, the power to the electromagnetic suction device 22 is cut off, and the table 5 is stopped and held at the 2y position. e. Then, based on the fact that the paper sensor S5 of Q'z l in the paper transport path does not detect the presence of paper at this point, the paper feeding program of the control circuit is started and the transport motor 2
4 rotational drive is started. At the same time, the 1711th
The magnetic device 36 is momentarily energized and the clutch 3 rotates once.
6 is turned on, and the paper feed support shaft 33 is driven one rotation. At this time, while being passed through 11 to the first electromagnetic device 36,
The second electromagnetic device 52 is also energized. As a result, the paper feed roller 40 is rotated by one rotation of the paper feed support shaft 33. Furthermore, since the second paper sensor s6 does not detect the presence of paper, the power to the second magnetic attraction device 52 is cut off. As a result, the clutch 50 is in the on state f
m, and the first and second conveyance rollers 57 and 68a also become Af.
The rotational force transmission path of T i is in a rotationally driven state. By rotationally driving the paper feed roller 40, Lf't e,
The topmost paper of paper P is fed and the paper reaches the leading edge E.
It passes over the TC claw 45φ45 and is sent out to a single sheet, and then it is bitten between the rotating ffil flail feed roller 57 and the driven presser roller 5'9 and relayed, and for precautionary purposes (single sheet conveyance/special equipment section 2 The paper is conveyed toward the tip 74 of the base body 65 through the paper conveyance gap path between the face plate 65c and the drainboard-shaped paper guide root 73.During this conveyance, the rotational drive of the paper feed roller 40 ends; The fed paper is transferred to the first conveyance roller 57 and the presser roller 59.
continues to be conveyed by the rotational drive of the Even after the active drive is cut off, the paper feed roller 40 continues to be operated by the one-way clutch 41 due to the moving force of the paper being conveyed.
The shaft 39J- rotates idly through the shaft 39J- to reduce paper conveyance resistance. f. Substrate] The transport movement of the paper that has entered the gap path between the two-sided plate 65c and the guide plate 73 is detected first by the first paper sensor S5 and then by the second paper sensor S6. After that, the second conveyance roller 68a whose tip edge is rotating and the freely rotating roller 103 of the paper feed roller 103 on the side of the machine B that is in contact with it
Roller 68a and roller 103a, which are caught between
The paper passes smoothly without getting caught between the 211!2 feed roller 68b, which is freely rotatable on the carriage 67, and the roller 103a on the paper feed roller side, which is opposed to it with a small gap, and further advances a little. +' (near the tip edge of body 65)
4 The rotational drive of the first conveying roller 57 and the second conveying roller 68a interlocked therewith is stopped at the timing when the conveying movement stops by 1 degree upon reaching the JQ' line 0-0 (Fig. 7-14). As a result, I-looking is stopped. Stopping the driving of the first and second conveyance rollers 57 and 68a is as follows:
The first paper sensor S5 detects the leading edge of the paper that has entered the paper transport gap path through the rotation of the first transport roller 57 and the driven roller 59. Based on the detection signal, the rotating encoder gear cutting disc 31 and the photoelectric element 31a (FIG. 13) start pulse failure counting, and when a preset number of pulses has been counted, the second counter counting device starts. 52 to 7
1ε is made and the gear cutting rear rough ring 51 of the clutch 50
This is done by engaging the claw arm 52a and turning off the crange 5o. The above pulse number is calculated based on the paper feeding speed of 1m, the distance from the paper sensor S6 of L'+12 to the base line O-0, 9I[, and the rotational drive of the first and 24m feeding rollers 57 and 68a being cut off. 39 is added to the paper movement amount based on the inertial rotation of both rollers 57 and 68a, and is preset in the control circuit. The set number of pulses can be corrected later as necessary. Further, after it is detected that the leading edge of the paper has passed the second paper sensor s6 position, the paper-out lamp 90 is turned off, and the indicator lamp LED changes from blinking to continuous lighting. Then, the above-mentioned paper whose conveyance was stopped with the leading edge aligned with the base line 0-O position is then transferred to the machine B (until the paper feed roller 103 of 1111 is driven to rotate by the sequence program on the machine B side). The trailing edge of this waiting paper is located between the paper feed roller 40 and the 11119th feed roller 57 when the IIJC size used is small, and when it is large. is paper feed roller 4
It has not yet been surpassed from 0. Therefore, in any case, when the paper is on standby, both the first and second paper sensors are held in the ON state due to the presence of the paper on standby. - Paper is fed from the machine B side until the paper is in the standby state as described in (a) or until the predetermined timer time (at least longer than the refeeding time for continuous copying on the machine B side, for example, about 1 to 2 seconds) has elapsed. When the iIT transport by the rollers 103 is not performed, the power to the transport motor 24 on the paper feeder A side is temporarily cut off to save power when the timer time elapses, and when the motor is stopped (approximately 2 seconds). ), the power supply to the second electromagnetic device 52 is also cut off, and the paper feed/transportation is stopped and stands by. g. The paper feed roller 103 on the machine B side is driven to rotate based on the sequence program on the machine B side! The leading edge of the paper is held between the second conveyance roller 68a, fist 68b, and paper feed roller 103, and is drawn from the paper feed device A side to the machine B side by the rotational force of the paper feed roller 103, and is transferred to the wood 5. Paper is fed into B. At this time, the paper feed roller 40 on the paper feed device A side, the first and second
None of the conveyance rollers 57 and 68a are driven to rotate like JJX, but the above-mentioned rollers 40φ57 and 68a are attached to each support shaft 39φ56 and 67 via one-way clutches 41 and 58168C. 49.
As the A-side paper feed roller 103 transports the waiting paper, both rollers idle and the transport resistance is reduced. h, 1-, When the trailing edge of the paper passes the position of the first paper sensor S5 as the waiting paper moves toward the machine B side, the sensor S5 is turned off and the signal is Then, when the conveyance motor 24 is stopped I:, the +1 side motor is energized, and when the 2' turn magnet device 52 is cut off, the power to the device 52 is turned on. Power is applied (
Therefore, clutch 50 is held off). Next, the first electromagnetic device 36 moment? E flow is lengthened and one rotation clutch 34
is turned on, and the paper feed roller 40 is rotationally driven by the 11.1i11 rotation drive of the paper feed support shaft 33. Due to the rotational drive of this paper feed roller 40, the next sheet of paper P on the table 5'' is sent out to the next sheet, and the tip of the sheet is at the nip between the first conveyance roller 57, which has stopped rotating, and its passive roller 59. A slight loop of paper is formed between the first transport roller 57 and the paper feed roller 40 until the paper is received by the paper feed roller 40 and the rotation of the paper feed roller 40 is completed. When the trailing edge of the preceding sheet then passes the second sheet sensor S6 position, this sensor is turned off, and the second sheet sensor is turned off based on the signal.
The L face plate 65 of the base body 65 is arranged so that when the electromagnetic device 52 is de-energized and the clutch 50 is turned on, the rotational drive of the first and second conveyance rollers 57 and 68a is about to start.
The paper is introduced into the paper conveyance gap passage between G and the drainboard-shaped paper guide plate 73. When the leading edge of the paper passes the second paper sensor S6 position decoy, the switch S6 is turned off, and based on that signal, pulse counting by the encoders 31 and 3La is started, and the predetermined number of pulses is reached by the second electromagnetic device. By energizing 52 and turning off the flange 50,
When the leading edge of the next (<f) sheet reaches the base line 0-0, the conveyance stops and the standby state occurs.The trailing edge of the preceding sheet is the next. The free rotating roller 1 of the conveyance roller 68a and the paper feed roller 103 on the B side of this machine
Before entering between 03a and 03a, the support has already come out from between both rollers. In addition, the paper feed unit 103 on the machine B side feeds the preceding paper to the machine B.
The drawing speed is relatively fast, and the trailing edge of the preceding paper is detected by the first paper sensor S5, and the leading edge of the next paper fed out by the rotation of the paper feed roller 40 based on the signal is detected by the first paper sensor S5. If the trailing edge of the preceding sheet has already reached the second sheet sensor S6 at point 111r when it reaches the first conveyance roller 57, the next sheet j± is sequentially moved to the 11th general feed without creating a loop. It is conveyed by the rotation of the roller 57. The next paper in the standby state i, 1- is introduced into the machine B by the rotatable drive of the paper feed roller 103 on the tree aB side. Then, the paper feed roller 103 on the JaB side is rotationally driven and the paper feed device f'J is rotated on the A side.
The process of introducing the standby paper i into the machine, transporting the next paper one by one, and waiting cycle is automatically repeated. k. When about 20 to 30 sheets of the stacked paper P on the stand 5 are completely consumed, the surface position level of the paper drops to the lower limit PL of the 1) 1-volume range. Then, as described above, the decrease is detected by the level sensor S1, and the platform 5 is moved, and after a certain period of time has elapsed, the movement of the upper strip 1 is stopped. At this time, the surface of the paper has almost reached the second limit level PI (. Even while the table 5 is rising, the paper feeding mechanism that feeds the topmost paper of the stacked paper P to the edge is in the special equipment section 2. The waiting paper is conveyed by the rotation of the paper feed roller 103 on the machine B side, and the paper is fed to the special equipment section 2 by the action of 4rf. After that, the level where there is no 4T in sequential consumption of paper is i1 trial F limit PL
1 of platform 5 when σ decreases to 1. The y1 movement is automatically executed intermittently and the upper surface position level of the stacked paper P is reached, or the paper on the tray 5" is consumed completely, and the paper is always kept at the predetermined upper surface level P.
) (-PL is maintained. In this way, a large amount of paper P, for example 2,000 sheets, is loaded onto the table 5- and is sent to the image forming apparatus B continuously as long as the image forming apparatus B is in operation. In addition, the first nine sheets and the next sheet in paper feeder A can be fed by the paper feed means 104 on the machine B side (the drawing speed may change due to changes in magnification, etc.). Even if the same speed varies depending on the model, the paper is always fed and conveyed at intervals, so paper feeding is based on catching up with the leading edge of the next sheet or the trailing edge of the preceding sheet. No error troubles occur. l. Sequential consumption of stacked paper P on table 5, sequential intermittent use of table 5.
2'71 progresses and the top surface position of the table 5 itself exceeds the lower limit PL of the paper top surface position level, at that point the protrusion 5 on the table 5 side
When C comes into contact with the table upper limit position sensor S3, this sensor is turned on, and its signal is input manually from the control circuit. When the paper feeding of the remaining paper on the stand 5 progresses and the last sheet is sent out from the stand 5, the optical path of the sensor S1 is opened by the large tilt rotation αL of the lever 23, and the signal is Input to control circuit. Then, the last sheet sent out waits in the special equipment section 2, and then is introduced into the main machine B side, thereby being transferred to the first sensor S5 or the first and second sensors S5φS6.
When both are turned off, the paperless lamp 90 is turned on, and the display lamp LED is turned on and off. When the paperless lamp 90 lights up, the light receiving element Cd on the B side of the machine
When light enters S, the out-of-paper display/warning circuit on the B side of the machine is activated, and a warning (φ) is issued to indicate that there is no paper left in the paper feeder A side. Generally, in this machine B, the mechanism operation is automatically stopped when the display/warning circuit is activated. m. Then, when the door 85 of the paper feeder is opened to replenish paper, the b-stand 5 automatically descends to the lower limit level and stops, as in bJJi above, so a large number of sheets of paper can be loaded and stored on the stand 5 again. do. Then, by closing the door 85, the sequence of item C, item 18 is executed again, making it possible to continuously feed a large number of sheets. (7) Intermittent Sequential Questions on the Table 5 During the 1st movement, which prevents the sequential consumption of the stacked paper P during an abnormality! Even after the top surface position level of the paper reaches the allowable PH limit due to the J1 movement, the 2A movement of the table 5 continues due to a paper jam or some other abnormality, causing the top surface of the paper to rise too high.8-23 Due to the excessive rotation, the third upward protrusion 23c comes into contact with the sensor S2, and it is detected that the second side of the sheet has risen too much. Based on the detection signal, the lifter motor 8 is reversely rotated and the table 5 is moved downward. When the surface position of the stacked paper falls due to this lowering and the sensor S1 detects that the position has reached the lower limit level PL of the paper 4 surface position level range, or the sensor S3 detects that ” When it is detected that the second surface is F higher than the detection level of the sensor S3,
Based on the signal, the lifter motor 8 is turned into normal rotation, and the table 5 is moved upward for a certain period of time. Lowering this platform 5
Again 1-! 1 operation, the cause of the abnormality naturally disappears, and the lever 23 and sensor S1 work to bring the top surface of the stacked paper to within the normal upper limit level range PH-PL.
When the f movement is stopped, the control circuit determines that the abnormality has disappeared. If the cause of the abnormality does not naturally disappear with just one automatic lowering and retraining operation of the table 5, and the top surface of the paper is too high, the sensor S2 is activated.
-, s operations are repeatedly executed several times, and if the recovery in 1- is not completed by the number of times preset in the control circuit, the control circuit determines that there is an abnormality in the device, and the operation of the sheet feeding device A is stopped. A warning buzzer built into the device activates to notify the operator of any abnormalities. In other words, a malfunction of the sensor S2 that is too flush with the paper due to the flapping of the paper can be naturally removed by lowering and re-operating the Sendai 5 once or several times within a certain range. If there is an abnormality in paper overflow due to a cause that causes the sheet to overflow, the control circuit will automatically lower and re-lower the table 5.
The abnormality is removed by the operation sequence control, and the normal paper feeding operation is automatically continued without activating the warning buzzer. Regarding the A lowering of the platform 5, even after a certain timer period preset in the control circuit has elapsed since the start of the upward or downward movement of the platform 5, the paper level sensor SL or the platform 2A upper limit level sensor S3, Alternatively, when the lower limit of the table is reached and the bell sensor S4 does not operate, the control circuit is judged to be abnormal in the motor abnormality check subroutine, and in this case as well, the operation of the paper feeder tA is stopped and a warning buzzer is activated. (8) Friction clutch mechanism (Figures 7 and 17) The aforementioned friction latch mechanism 69a to 69d interposed between the 21st general feed roller 67 and the timing pulley 68 that drives it
intervenes to eliminate the following troubles. In other words, the paper feed roller 103 on the B side of the machine is jammed.
Occasionally, due to an occurrence or an erroneous operation, the second II feed roller 68a may come into direct contact with the second II feed roller 68a without any paper in between, resulting in a state where the rotation is stopped. In this case, the second conveyance roller 68a is pushed down further against the spring plate 67b due to contact with the SO#JE roller 103 than when it is in contact with the freely rotating roller 103a of the paper feed roller 103. Due to the reaction force of the spring plate 67b, it is in contact with the surface of the paper feed roller 103 with a fairly strong pressing force. In such a state, the second conveyance roller 68a is connected to the paper feed roller 103.
If the paper feed roller 103 is configured to be forced to rotate against a strong pressing force, the circumferential surface of the paper feed roller 103 will be scraped off. In this example device, the second conveyance roller shaft 67 is connected to the friction clutch machine 41 as described above. , 69a to 69d, the second
Due to the large rotational load on the conveyance roller 68a, the pulley 68 causes slip rotation, and the roller 68a is not forced to rotate, resulting in the paper feed roller 103 being scraped.
does not occur. It can be arbitrarily set by selecting or adjusting the tension force of the friction clutch force spring 69d of the friction clutch mechanism. (9) Loading mechanism (Figures 7, 18, and 19) A mechanism that applies a rotational load to or releases the load on the first conveyance roller shaft 56 that is linked to the pJ change rotation operation of the paper size instruction dial 75 mentioned above. 78a to 78k will be explained in detail. Regarding the paper transport load in the paper transport process due to the rotational drive of the first and second paper transport rollers 57 and 68a, there are two types of paper transport loads: when transporting small size paper (B5/A4 (horizontal transport)) and when transporting large size paper (B4 (Vertical feed)) The load condition is different from the case of conveyance. That is, the paper feed roller 40 is connected to the one-way clutch 41 by the lever 39.
After the rotation of the fifth interleaved paper roller is stopped, the portion of the paper that has not come out from under the roller is moved as the paper is moved by the first and second conveyance rollers 57 and 68a. In addition, by idly rolling the shaft 39'2, the paper conveyance resistance is made as small as possible, but it is not zero, and the sheet pressing force and idling resistance of the paper feed roller 40 act on the paper as a conveyance load. By the way, in the case of transporting small-sized paper, the trailing edge of the paper transported by the first transport roller 57 comes out from under the paper feed roller 40 during the transport, and from that point on, the paper is transported by the first transport roller 57. Conveyance continues a little in the above-mentioned state 71a where there is no conveyance load by 40, and then the section 1 and the second conveyance rollers 57 and 68a
When the encoder 31@31a counts up a predetermined number of pulses, the arm 50 turns off and stops, leading to a conveyance stop. However, in the case of transporting a large size paper, the trailing edge is not pulled out from under the paper feed roller 40, that is, the paper continues to receive the transport load from the paper feed roller 40 until the general feeding stops. In other words, in the case of small size paper, the transport load when the transport is stopped is light, and in the case of large size paper, it is heavy. Therefore, for example, if the predetermined pulse count number set in the circuit of the encoder 31Φ31a is set to a number such that the leading edge of the paper stops when it coincides with the base line O-0, based on the conveyance of small-sized paper, When a large size sheet is conveyed, the heavy conveyance load described in - causes the sheet to stop before the leading edge of the sheet reaches the base line 0-0. Conversely, if the setting is based on the transport of large-sized paper, when transporting small-sized paper, the leading edge of the paper will slightly overrun the baseline 〇-〇 because the transport load is light when transport is stopped. Then, the paper stops. Then, the paper stops before the leading edge reaches the base line O-O. When the paper is fed into the machine B by the paper feed roller 103 on the wood RB side, the machine B forms an image. There will be some paper feeding delay with respect to the progress of the process. Conversely, if the leading edge overruns the base line 0-0 and the paper is stopped, an excessive paper loop may occur before the timing roller on the machine B side when the paper is introduced into the machine B. This may cause J1 trouble without forming. The load mechanism eliminates this inconvenience. In Fig. 7/18019, 78a is a cam attached to the foot 75a of the paper size indication dial 75, and 78b is a cam disposed on the back side of the top plate of the base 65 so that it can slide freely in the front and rear directions using a pin 78C and a long hole 78d. It is a forward and backward bar. This advancing/retracting rod 78b is constantly urged to move forward by the pull spring 78e, and its tip end surface is always pressed against the surface of the cam 78a (X-1!). ′
It is in contact with l. The cam 7 rotates as the tire lure 5 rotates.
When the large diameter portion of 8a corresponds to the tip end surface of the retractable rod 78b, the retractable rod 78b moves backward against the spring 78e. When the small diameter part responds, it moves forward. In this example, when the 34th edition scale (large size paper) on the dial 75 is aligned with the index 77 (Fig. 16), the forward/backward lever 78b is kept at the forward position, and when the A4 size or 85th edition scale (small size paper) is aligned, the forward/backward movement lever 78b is kept at the forward position. This is the relationship in which the rod 78b is maintained in the retracted position. 78f is a coiled spring-wound shaft ζ1 cylinder having 6 seats 78g on the left end side, which is fixed to the first conveying roller shaft 56, and 78h is a 6 seater body on the right end side (6 seats loosely supported on the shaft 56 at 6 positions).
Coil 1 with seat 78i is 1, Hanashin is body, 78j is L
The two spring wires are wound with an appropriate tightening force across both the body 78f and 78h (=1-digit coil spring, 78 has the right spring winding;) on the outer surface of the six seats 78i of the body 78h. This is the formed latch 11-claw.When the advancing/retracting rod 78b is held in the forward position (old), the rear end of the tenon rod escapes to a position where it does not interfere with the latch 11-claw 78 described in 1 above. As the first general feed roller 56 is driven to rotate, the left and right coil spring windings 78fφ7811 and the entire heel of the coil spring 78j rotate together with the shaft 56: Q, j. Advance; u4 "When 78b is held in the retreat position, the rear end of the rod becomes a device that interferes with the pawl 78 in the above-mentioned latch 1, and at this time, the 1st o. 1 conveyance roller iMl+ 56 rotates pal (when moved, the right spring winding drum 78 h l;] advances and retreats 1 [78
Rotation is prevented by the engagement between the rear end of b and the locking pawl 78, so that the support 56 rotates while creating a friction sling between the coil spring 78j and the coil spring 78j. . That is, the frictional slip force acts on the shaft 56 as a rotational load. Now let's set the encoder 31/31a circuit')j!
Assuming that the number of pulse counts is based on the conveyance of large-sized paper, and the number of pulses is set such that the leading edge of the paper stops when it coincides with the baseline o-o, then dial 75 When adjusted to the 34th plate, which is a large size paper, the rear end fζ1 of the advancing/retracting rod 78b escapes from the barrel 78h, and the above rotational load is applied to the first conveying roller +jl+ 56. )) No. Therefore, the leading edge of the paper coincides with the base line o-o (stops at V). - When the direction dial 75 is set to A4 size paper or 5th version from l to dog size paper, the rear end of the advance/retreat rod 78b The spring winding on the right side (= the length of the barrel 78h is applied 1) is attached to the shaft 56.
- The rotational load shown below is applied. As a result, the rotational load acts as a loading load when the conveyance of small size paper is stopped, similar to the conveyance load that acts on the paper feed roller 4° when conveyance is stopped for human-sized paper. To prevent overrunning, the leading edge of the small size paper (
It almost coincides with line O-0 and stops. As explained above, the load is applied to the first conveying roller shaft 56 when the paper is small, and when the paper is sized paper, the load is not applied. )'iii"'joo can be made almost the same. The load can be set arbitrarily by adjusting the winding force of the coil spring to )!4 and 11i. As an electrical means, use the encoder circuit. Pulse karan
- Two numbers are set, one for transporting large size paper and one for transporting small chairs, and the force associated with the die self 50 chair instruction operation is 1.78
The set pulse count number described in 2 may be changed by turning the switch a (FIG. 20) on and off. (10) In addition, in the yI descending Tagawa 8 storage platform mechanism mentioned in (2) above, the sprocket 17 (Figures 4 and 7) is the one-way clutch 1.
Since it is attached to the shaft 12 via the connector 6, when the paper feeder A is inspected or repaired by a service person or the like, it is possible to manually turn on the gigameter switch S7 or listen to the door 85. When the lid earth inch S8 is turned off and the platform 5 moves downward, the descending platform 5 and the chassis bottom plate 3a may be accidentally removed.
Even if the stand 5 is forcibly removed +J- with a hand or other object in between, the sprocket 17 will idle on the stand 12 due to the reverse driving force of the morph 16 due to the presence of the one-way clutch 16, and the stand 5 will be removed.
The morph 16 is not forced to lower, thereby protecting the hands and objects held in the morph, and preventing overload from being applied to the morph 16. When the paper feeding device A is not in use, the conveyance section 2 protruding forward from the large-capacity paper storage section 1 can be largely rotated around the shaft 57 to a substantially hanging state and folded into the front panel of the storage section. If you do this, the whole thing will be made into a compact type, which will be convenient for storage. (11) Main points of the present invention 2 In short, the unreleased IJJ includes a large-capacity paper storage section that can store a large number of paper sheets and a large-capacity paper storage section that is connected to the storage section and stores the paper storage section of the image forming apparatus n. A paper transport section that fits into the J set slot, a paper feed mechanism that feeds out the sheets of paper from the large-capacity paper storage section to the paper transport section one by one, and transports the fed sheets to a predetermined position in the paper 1 general feed section. - A paper conveyance mechanism that stops and waits, and when there is no paper in the paper conveyance section or when the waiting paper is fed by the operation of the paper feeding means on the image forming apparatus side, it is a great luck. ♀, paper storage l
a paper feeding IIc device main body that operates in conjunction with the paper feeding mechanism and the paper transporting mechanism so that one sheet of paper on the IP side is automatically fed out, transported, and waits in the paper transporting section;
It is equipped with a rail on which the main body of the paper feeding device can be pushed forward and backward and freely mounted, and the cassette I/insertion @1 of the image forming apparatus is carried out.
a pedestal for holding the connection of the main body of the paper feeding device to the image forming device, which can be positioned and removed from the side;
The gist is a paper feeding device consisting of: In other words, the paper feeding device of the present invention is a paper feeding device that is installed in one cassette I/insertion unit on the side of the machine for general various paper cassette insertion type image forming apparatuses that do not have a built-in multi-sheet deck mechanism. When you insert a cassette into the paper transport section on the side, you can fit it in the same way and use the combination, and since there is a large capacity paper storage section on the paper feeder side, you can store, for example, 1000 sheets or 200 sheets on the machine side.
It becomes possible to perform continuous copying of a large number of sheets, such as 0 sheets, without interruption until the end. Then, when the paper waiting for one sheet is fed into the paper transport section of the paper feeding device fitted in the cassette slot of this machine by the operation of the paper feeding means on the machine side, the paper is fed into the large-capacity paper storage section. The next sheet of paper on the side is automatically fed out and conveyed, and immediately stands by to be replenished in the paper transport section, so there is no need for a signal line to exchange paper feed timing, etc. between this machine and the paper feeder. . In other words, to connect the paper feeder to this machine, it is only necessary to physically fit the paper conveying section of the paper feeder into the cassette slot of the machine in the same way as when inserting the paper feeder into the cassette/I. In addition, the main body of the paper feeder is positioned relative to the image forming apparatus and supported by a removable rail-type pedestal, so once the pedestal is attached to the machine, Once the main body of the paper feeder is supported on the rail, all you have to do is push the paper feeder forward along the rail as detailed in section (1) above, and the paper transport unit will insert the cassette into the machine. It naturally fits into the loading slot and the paper feeding device is temporarily connected. In addition, to remove jammed paper in the event of a jam, move the main body of the paper feeder backwards along the rail, the cassette I/insertion opening of this machine will come out, and the jammed paper can be immediately and easily removed.
After that, simply pushing the paper feeder forward will reconnect the paper feeder to the machine, making it extremely easy to use. Therefore, the paper binding device of the present invention can be widely used in combination with various types of paper cassette insertion type image forming devices currently on hand, and is a general-purpose device that can perform continuous copying of a large number of sheets without interruption. It is effective and suitable as a Unimet type highly reliable human body J5 automatic paper feeder.

[Brief explanation of the drawing]

The drawings show one embodiment of the wooden paper feeding device. Fig. 1 is a partially cutaway side view of the image forming apparatus connected to this machine, Fig. 2 is an exploded slope view of the pedestal, and Fig. Figure 3 is a cross-sectional view of the rail with the rollers inserted, Figure 4 is a right side view with the right side decorative board removed, Figure 5 is a left side view with the left side decorative board removed, and Figure 6 is a longitudinal section. Right side view, Fig. 7 is a cross-sectional plan view, Fig. 8
The figure is a longitudinal sectional front view taken along the line (8)-(8) in Figure 7, Figure 9 is a front view taken along the line (9)-(9) in the same figure, and Figure 10 is an enlarged plan view of the lid morph part. Figure 11 is an enlarged plan view of a part of the paper detection swing lever, Figure t512 is a side view of the same, and Figure 1
Figure 3 is an enlarged side view of the carriage row of the paper feeding and conveying mechanism.
Fig. 14 is a plan view of the paper transport/special equipment section, Fig. 15 is a side view showing the state of the paper transport/special equipment part before connection, Fig. 16 is an enlarged side view of the paper size specification tire section, and Fig. 17 is a side view showing the state of the paper transport/special equipment section before connection. Figure 18 is an enlarged plan view of the friction clutch mechanism, Figure 18 is a slope view of the load mechanism, Figure 19 is an enlarged vertical sectional view of the friction cylinder of the mechanism, Figure 20 is a block diagram of the main control circuit, and Figure 20 is a block diagram of the main control circuit. Fig. 21 shows the control circuit for the beam lid motor, Fig. 22 shows the overall flowchart of the operation of the device (1), Fig. 23 shows the operation flowchart of the elevating paper storage platform mechanism, and Fig. 24 shows the paper feeding/conveying/standby mechanism. Operation flowchart I., ft525
The figure is a drive timing chart of the beam lid motor. Δ is the paper feeding device, ■ is the Hitoyoshicho paper storage section, 2 is the transport section, B
is the image forming apparatus, C is the base of the machine, and D is the paper feeder pedestal. Figure 24 Figure 25 Procedure Amendment (Method) Showa style, January-March 241''! 1〒Revised J) Secretary Chikusugi O] 1fu Tono 1, Indication of the incident 1981 Bamboo last application No. 185968 2 Name of Hikari J Rei Paper Tetsu 匝ri Name of place (100) Canon Kyuunirosha 4 agent Telephone 370-1'1426 (I (1) Amend the description as follows. Page line error
IF12 6 (Rice 7 Figure 9) (7-9-11
Figure) //11 Koro 7@7, Koro 7-714
7 1E rotation drive a Stop rotation drive b〃 14 Reverse rotation drive b Reverse rotation drive a15 3 (Fig. 10) (Fig. 9
Figure 10)ll 17 Idle rotation Rotation 1719 Forward rotation a Positive 'k b22 12
(Fig. 7) (Fig. 6, 7, 9) 24 11 5
2a 52 //12 Claw arm Claw arm 52a29
End 67 67 (6th ・
Figure 7] 3012/13 68C68C (Figure 6) 31
15 Length ζ J゛ method Thickness = J method 32 5 7
0 70 (Figure 7)! / 10 Pulley 68
Pulley 69//19 Pulley 68 Pulley 6935
8 78a1178b 78・79'' 37 15 90 90 (Figure 607)//
18 ds ds (Figure 1-15)
// end board 65e board 39 4 mentioned above mentioned (1) 4 ■ 10 -to'lzak
] Nishiro/7193B 34 4513 Sensor Sensor S5・564617i
1den j area light 1st class 48 2 65
C(7) 65C,! :50 8 Mode always
Always until ll 15 104 103 54 end 68 6956
8 Interlocked Interlocked 5914 Large size Large size 6113 Large size Small size 63 8 Motor 16 Motor 8 // lO motor 16 Motor 8 // 13 Axis 57 fII+ 56 (2) Drawings, plans (Figures 1 to 25) Additions are made as per the attached sheet.

Claims (1)

[Claims] (1) A large-capacity paper storage section that can store many sheets of cut sheet paper; a paper transport section that is connected to the storage section and fits into one paper cassette of the image forming apparatus; It is equipped with a paper feeding mechanism that feeds the sheets of paper from the paper storage section to the paper transport section three sheets at a time, and a paper transport mechanism that transports the fed sheets to a predetermined position in the paper transport section and temporarily stops and waits. When there is no paper in the transport section, or when waiting paper is fed by the paper feeding means on the image forming apparatus side, one sheet of paper from the large capacity paper storage section is automatically fed out and transported. A paper feeding device main body in which the paper feeding mechanism and the paper transporting mechanism are operated in conjunction so as to wait in a transporting section, and a rail that supports the paper feeding device by pushing it in the front and rear directions and freely riding on it. Equipped with a cassette insert for the image forming device.
A candy paper device comprising: a pedestal for connecting and holding a paper feeding device main body to an image forming device, which can be positioned with respect to the Fi, 1 side, and can be freely detached and used.