JPS62171836A - Automatic feeder for sheetlike apticle - Google Patents

Abstract

PURPOSE:To make a paper feed board liftable with small driving force, by installing a drive transmitting member at the longer side in both sides to a support member of the paper feed board, and making it act in a direction of countervailing the acting force to the support member. CONSTITUTION:In a support block 5 of a paper feed board 4, there are provided with both support rollers 8a and 8b being guided by a guide plate 9. The rate of a distance between a rear end of the paper feed board 4 and a guide roller and of a distance between a front end of the paper feed board 4 and this guide roller is to be 1 to 1.2. And, a driving chain 45 out of a driving source 40 is installed in the longer side of the paper feed board 4, the support block 5 and the chain 45 are locked while guide rollers 8a and 8b are moved up and down along the guide 9. Thus, since the chain is installed at the longer side of the paper feed board 4, turning moment of these rollers 8a and 8b at the time of lifting the paper feed board works in a direction of countervailing the turning moment acting by the sheetlike article mounted. Therefore, force wolring on a contact surface between the roller and guide plate becomes smaller, thereby making the driving force reducible.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic feeding device for sheet-like materials, and in particular, to an automatic feeding device for sheet-like materials, and in particular, to an automatic feeding device for sheet-like materials, and in particular for feeding a large number of sheet-like materials in order from top to bottom. This invention relates to an automatic feeding device for sheet-like materials.

[Prior art]

Generally, it is used in recording devices such as electrophotographic copying machines and simple printing machines, and in feeding devices for sheet-like materials such as transfer paper, photosensitive paper, printing paper, etc., the upper part of the sheet-like material stacking member is A large number of sheet-like objects are placed, and the stacked sheet-like objects are moved from top to bottom using a rotating feed roller (belt), other air suction system, or an electrostatic suction system.
The sheets are fed in the order of their address, and after being fed out one by one, the sheet loading member is raised one after another, so that it is always maintained at a substantially constant standard height in relation to the sheet feeding mechanism. This allows the stacked sheets to be fed to the last one.

Normally, as sheet stacking members, several cassettes each capable of accommodating about 200 to 250 sheets of transfer paper for a normal recording device are provided above and below.

And the ones mentioned above, and furthermore, 500 to 200
As a device that can accommodate about 0 sheets, Japanese Patent Publication No. 29279 of 1972 and Japanese Patent Publication No. 29279 of 1972
Publication No. 0, Special Publication No. 11663, Publication No. 11663, Special Publication No. 11663, Special Publication No. 11663
There is an elevating sheet feeding tray system as shown in Japanese Unexamined Patent Publication No. 0-25345 and Japanese Utility Model Application Publication No. 336/1983.

[Problem that the invention seeks to solve]

In the case of the above-mentioned cassette type, for example, as mentioned above, the storage capacity is limited to about 200 to 250 sheets at most with transfer paper for ordinary electrophotographic copying machines. However, as recording devices such as electrophotographic copying machines and simple printing machines increase in speed, it is necessary to frequently replenish sheet-like materials, resulting in extremely low work efficiency. In addition, if the cassettes are multi-tiered, the capacity for storing sheet-like objects can be increased, but it is necessary to provide a feeding mechanism and a guide plate for each cassette, which results in a large space compared to the capacity for holding sheet-like objects. The problem was that it required

Furthermore, it is possible to increase the capacity of one cassette, but if the storage capacity of the cassette is increased, the stacked sheets will be fed out from the bottom of the cassette as the stacked sheets move from the second layer to the lower layer. However, it is extremely difficult to do this with high precision, which may result in paper feeding failures such as no-feed, double-feed, bending, timing errors, etc. This had the problem of causing

Furthermore, in the case of elevating feeding and feeding systems that can achieve a large capacity, the paper refeed roller (registration roller) and elevating feeding table are separate units and can be maintained while attached to an electrophotographic copying device, etc. Therefore, if a paper jam occurs, it is difficult to dispose of it, and
The paper feed section has become larger, requiring more assembly man-hours and less efficient assembly work.Furthermore, the sheet-like materials loaded on the paper feed tray are quite heavy when fully loaded, so it takes a lot of effort to move them up and down. Since the driving force is required, a large driving source is required, resulting in problems such as the overall size.

This invention solves the problems of the conventional ones as described above, and makes maximum use of the limited space of electrophotographic copying machines, simple printing machines, etc.
It is smaller than the conventional cassette system even when storing a large amount of sheets (more than 1,000 sheets), and the feeding conditions of the sheet-like materials from the upper layer to the lower layer are always stable and uniform. This prevents paper jams from occurring, and even if a jam occurs, the entire paper can be pulled out, making it easy to dispose of it.
Furthermore, it is easy to assemble, the number of assembly steps is small, and the efficiency of assembly work is high.
Since the loading section on which the sheet-like object is placed is tilted forward and moves forward as it rises, the overall height and width can be reduced, making the entire sheet smaller. It is possible to prevent the flaps of the sheet-like object from shifting when raising and lowering the sheet-like object, and since the paper feed tray can be raised and lowered with a small driving force, the drive source can be made smaller and the entire sheet-like object can be made smaller. The purpose of this invention is to provide an automatic material feeding device.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides an automatic feeding device for sheet-like materials attached to the main body of a recording device, etc., which is capable of moving up and down along supporting members provided on both sides. a table, a feeding section located above the paper feeding table and feeding the sheet-shaped objects placed on the paper feeding table in order from the top, and a sheet-like object fed out from the feeding section; A paper refeeding unit that starts and stops in accordance with the timing of a recording device or the like in order to send out an object again, and a drive transmission member that transmits driving force from a drive source to the paper feed tray, and the drive transmission A member is connected to the longer side of both sides of the paper feed tray relative to the support member.

[Effect]

By adopting the above-mentioned means, this invention requires only a small driving force to raise and lower the paper feed tray, so a small drive source can be used, and the entire structure can be made compact. becomes.

〔Example〕

Embodiments of the invention shown in the drawings will be described below.

The drawing shows an automatic sheet feeding device according to the present invention. First, the automatic sheet feeding device, which is the upper unit, will be explained. This automatic sheet feeding device has the following features: An elevating sheet feeding table section 1 that loads a plurality of sheets and moves up and down; a feeding section 10 that sequentially feeds out the sheets stacked on the elevating sheet feeding sheet section 1 starting from the highest sheet; It also has a paper refeeding section 35 that temporarily waits for the shaped material and feeds it out at a predetermined timing.

The elevating paper feeding table section 1 can be pulled out horizontally from a machine table 2 of an electrophotographic copying machine, etc., and has side plates 3 on both sides.
A has a paper feed stand 4 located above a machine stand 3 of an automatic feeding device for sheet-shaped materials that is set upright, and this paper feed stand 4 has a side plate 3a on both sides thereof that is higher than the side plate 3a of the machine stand 3. It is connected to the rear end of the support member 5 located on the outside through a screw 6, and the front end of the support member 5 is connected through a screw 7 in a forwardly inclined elongated hole 3b provided in the side plate 3aε. A part of the side plate 3a of the machine stand 3 is located between both ends of the paper feed stand 4 and the support member 5.

Further, two support rollers 8a and 8b in the vertical direction rotatably provided inside the support member 5 are connected to the side plates 3 of the machine base 3.
By being located in the lift guide plate 9 which is parallel to the elongated hole 3b at the outer rear end of the paper feed tray 4, the paper feed tray 4 remains in its initial forwardly inclined state and moves upward as it moves upward. While moving forward, it is guided by a lift guide plate 9 and can move up and down.

The positional relationship between the two upper and lower support rollers 8a, 8b with respect to the paper feed table 4 is as shown in FIG.
If the distance between 8b and the rear end of paper feed table 4 is b, then a:b=l
:l~1:1.2.

In determining the ratio of a:b in this manner, the inventor of the present invention conducted the following experiment.

That is, the total length of the paper feed tray 4 is 297 fins, and a is 831 fins.
When 1 and b are set to 214 mm, and when a is set to 183 m and b is set to 114 mm, the maximum loading is achieved (A-3
As a result of calculating the force exerted by the support rollers 8a and 8b on the side surface of the lift guide plate 9 for the size (10 kg paper),
If a is 83 cranes and b is 214 cranes, then the weight is 14.6 kg, a
The result was 4.97 kg when the size was 183 inches and b was 114 inches.

In fact, when a is 183m and b is 1141E@, a large force acts between the support rollers 8a, 8b and the lift guide plate 9, which generates a large frictional force that moves the paper feed tray 4 up and down. However, when a was set to 183+mm and b was set to 114 mm, the paper feed table 4 could be moved up and down smoothly even with a relatively small driving force.

As a result of various experiments, it was determined that the force with which both support rollers 8a8b press against the lift guide plate 9 is desirably about 5 kg.

And if a is 183+u and b is 114m, then a
The ratio based on the smaller of the values of and b is about 1:1.5, whereas a is 83 m,
When b is 214+n, the ratio is 1:2.5.

Therefore, the total length of the paper feed tray 4 and both support rollers 8a, 8b
Assuming various cases including the interval of and other variables,
The ratio of the lengths of the paper feed trays 4 on both sides of the support rollers 8a and 8b, a
:b is preferably l:1 to 1:1.2.

A feeding section 10 is provided in the upper part between the side plates 3a of the machine stand 3 and in front of the sheet feeding table 4, and the feeding section 10 has a shaft 12 connected to a clutch 11 at one end. is constructed, and a roller 13 is installed at the center of this shaft 12.
is attached to this shaft 12, and furthermore, a feed unit I.14 is provided and another roller 15 is provided, and a paper feed belt 16 is stretched between this other roller 15 and the roller 13. ing.

The feeding unit 14 is provided with a paper feed roller 17 which is movable downward via a support plate 18 and which contacts the uppermost sheet material. The shaft 15a of the other roller 15 and the paper feed roller I7 are rotated in synchronization with the paper feed bell I.16.
A rotation transmission belt 19 is stretched between the shaft 17a and the shaft 17a.

A front end guide plate 20 is provided on the machine stand 3 at the front end of the paper feed table 4 and is inclined forward in order to come into contact with the front end of the sheet-like object placed on the upper part of the paper feed table 4, In front of this front end guide plate 20, a double feed prevention roller 21 is intermittently rotated, which is in pressure contact with the paper feed heald 16 stretched between the rollers 13 and 15 from below. A mechanism is provided.

A mechanism for intermittently rotating the double-feed prevention roller 21 is shown in FIG. 7, in which the center portion is supported by a shaft 24 on a standing plate 22 erected on the machine stand 3, and one end is connected to the paper feed stand. Another link plate 26 is connected to the other end of the link plate 23 pushed down by the front end of the link plate 23 via a shaft 25 . Ratchet push-up pawl 2
8 is provided, and the standing board 22 and the other link board 2 are provided.
A spring 29 is provided between the ratchet 27 and the ratchet 27, and a spring 29 is provided between the ratchet 27 and the ratchet 27. It is provided.

On the other hand, a pair of upper and lower guide plates 31a and 31b are provided in front between the two rollers 13 on which the paper feed belt 16 is stretched and the double-feed prevention roller 21, and both guide plates 31a , 31b are provided with a pair of upper and lower guide rollers 32a132b protruding between the guide rollers 32a.

In front of the upper guide roller 32b, a paper refeeding section 35 consisting of a pair of upper and lower restart rollers 34a and 34b is provided via a pair of upper and lower guide plates 33a133b.
The shaft 36 of the upper restart roller 34a, the shaft 37 of the upper restart roller 34a, and the clutch 11 of the shaft 12 of one of the rollers 13 that tensions the paper feed belt 16 are connected via a gear train. A gear provided on the shaft 37 of the roller 34a is connected to a drive source of the main body 2a of an electrophotographic copying device or the like when the roller 34a is pushed into the main body 2a.

The paper feed table 4 is located between the front end guide plate 20 located at the front end of the paper feed table 4 and the restart rollers 34a and 34b, and is located below the feed mechanism 10 in the machine stand 3. An actuating member 4 that is a driving source for a mechanism that moves to
0 is provided, a sprocket 41 provided on this operating member 40, a sprocket 42 provided on the upper part of one side plate 3a of the machine base 3, and a sprocket 42 located slightly behind this sprocket 42, and both side plates 3a, A sprocket 44 attached to a shaft 43 passing through the side plate 3a is connected via a chino 45, and a sprocket 44 attached to the actuating member 40 is also connected to the sprocket 44 attached to the actuating member 40 on the outside of the other side plate 3a.
A sprocket 46 provided at a position corresponding to 1, a sprocket 47 provided at the upper part, and the shaft 4 passing through the sprocket 46.
3 is connected to a sprocket 48 provided on the machine base through a chain 49, and a part of both chains 45 and 49 is between the paper feed base 4 and the support member 5, and is connected to the sprocket 48 provided on the machine base. It is located outside the side plate 3a of No. 3.

The support members 5.5 provided on both sides of the paper feed table 4 are the fifth support members 5.5.
As shown in FIG. A long hole 50a in the vertical direction corresponding to the two screw holes 5a is provided, and two holes 50b are provided at a position corresponding to the long hole 5b in the vertical direction of the support member 5 at a predetermined interval vertically.
is drilled.

Then, by screwing the screw 51 into the threaded hole 5a of the support member 5 through the elongated hole 50a of the adjustment plate 50, the adjustment plate 50
is movable and fixed in the vertical direction with respect to the support member 5, and the two holes 5 in the vertical direction of the adjustment plate 50
The bottle 52 inserted into 0b passes through the elongated hole 5b in the vertical direction of the support member 5 and can be locked to the chino 45.49, thereby connecting the chino 45.49 and both support members 5, that is, the paper feed stand. 4, and both support members 5 have adjustment plates 5o on both sides.
is located, so that the inclination of the paper feed table 4 in the left and right direction can be adjusted. Also, a wire, a pulley, etc. may be used instead of the Cheno 45.49.

The relationship between the paper feed tray 4, the support member 5, and the chinos 45 and 49 is as described above.
, 8b, and can move up and down, and these support rollers 8a, 8b are located slightly on the rear end side of the central part of the paper feed table 4 in the front and rear direction.
5.49 is connected to the longer side of the paper feed table 4 with respect to the support rollers 8a and 8b, that is, the side a in FIG.

The reason why the chinos 45 and 49 were connected to the paper feed tray 4 in such a position is based on the results of experiments conducted by the inventors of the present invention.

That is, when the paper feed tray 4 is pulled up by connecting the chinos 45 and 49 to the long side and the short side with respect to the support rollers 8a and 8b of the paper feed tray 4, the length of the paper feed tray 4 is short. Considering the rotational moment around the support rollers 8a and 8b when the chains 45, 49 are connected to the sides, the lifting of the paper feed tray 4 by the chains 45, 49 acts in a direction that promotes this rotational moment. Support rollers 8a, 8
The force acting on the contact surface between b and the lift guide plate 9 becomes increasingly large, and this force becomes a resistance force when pulling up the paper feed tray 4, making it even more difficult to pull up the paper feed tray 4. The power efficiency is extremely poor, and a large amount of driving force is required to pull it up.

However, there is a chino 45 on the long side of the paper feed table 4.
Considering the rotational moment around the support rollers 8a and 8b when the rollers 49 are connected, the pulling up of the paper feed tray 4 by the cheno 45. Because I work in
The force acting on the contact surfaces between the support rollers 8a, 8b and the lift guide plate 9 is relatively small.

As a result, the applied power can be effectively utilized, and the paper feed tray 4 can be pulled up smoothly.

On the other hand, a pinion 53 is provided on the lower surface of the paper feed tray 4, and a side guide plate on which racks 54 and 54 that mesh and engage with the pinion 53 are vertically provided through the holes 4a of the paper feed tray 4. The pinion 53 is connected to the lower part of the pinion 55 so that the pinion 53 moves closer and further away from the other as the pinion 53 rotates. The two are connected via a wire 58.

This side guide plate 55 is designed as shown in FIG.
The shaft 7
One end of the spring 73 wound around 1 is fixed to the main body 70, and the other end is fixed to the rotary plate 72, so that the main body 70 and the rotary plate 72 are held in a continuous state. The rotary plate 72 can be rotated approximately 90° against the biasing force of the spring 73, and at the time of this 90° rotation, the side guide plate 55 is larger than before the rotation.
The height of is reduced by a predetermined height C, and
As shown in FIG. 2, the lower end portions of both side plates 3a, 3a of the machine base 3 are provided with front ends that are moved upward when the paper feed base 4 is lowered to engage the machine base 2 of the electrophotographic copying machine, etc. A tenth hook member 61 is provided to release the lock from the stopper piece 60, and
Further, the rear part of the paper feed table 4 has a U-shape that extends to the rear of the paper feed table 4, and when the central part is pulled rearward, it swings upward due to this movement, and the front end becomes the base of the electrophotographic copying machine. A twentieth locking member 63 is provided for releasing the locking from the second locking piece 62.

Note that 65 is a case for covering the rear end of the automatic sheet feeder according to the present invention, and the upper part of this case can be opened, and a bundle of sheets can be inserted when the case is opened. It becomes.

Further, when the automatic sheet feeding device according to the present invention is attached to the main body 2a of an electrophotographic copying device, a manual feeding unit 75 can be attached to the side of the main body of the electrophotographic copying device. ing.

That is, this manual feed unit 75 has a box-like main body 76 whose top surface and front end are open, as shown in FIG.
Two grooves 77a, 77a whose front ends are inclined upward are formed in both side plates 77, 77 of this main body 76 so as to face each other, and inside this main body 76 there is a groove for placing a sheet-like object. Bins 79 and 79 provided at the upper and lower rear ends of the plate 78 are held in the grooves 77a, 77a, and therefore the plate 78 for placing the sheet-like object is
Since the bottle 79 at the rear end is located in both grooves 77a, 77a, it can be retracted from the front end of the main body 76 along $172.77a.

Next, the operation of the above will be explained.

First, when the paper feed tray 4 is in the lowered position shown in FIG. The engagement with the locking piece 60 of the machine base 2 of the copying machine or the like is released, and the link plate 23 of the mechanism that intermittently rotates the double-feed prevention roller 21 is pushed up by the paper feed base 4, thereby The ratchet push-up pawl 28 provided at the upper end of the other link plate 26 is in contact with the ratchet 27 on the side surface of the double-feed prevention roller 21 (see FIG. 7).

On the other hand, since the device according to the present invention is pushed into the main body of an electrophotographic copying apparatus which is a recording device, the gear train consisting of gears and the like provided on the shaft 37 of the upper start roller 34a can be used in an electrophotographic copying machine or the like. It is designed to be connected to the drive source of the main body.

When the paper feed tray 4 is in the lowered position, first, when the handle 56 for external operation is rotated, the pinion 53 is rotated via the pulley 57 and the wire 58, and the rotation of the pinion 53 causes the rack 54 to The side guide plates 55.55 move away from each other or approach each other via the . A predetermined number of sheet-like materials, such as transfer paper, are placed on the paper feed table 4, and then the actuating member 4 is activated by a command from the operating section of the main body of an electrophotographic copying machine or the like.
0 is started, first, the sprocket 41 rotates, and this rotation is transmitted to the sprocket 42 through the chino 45.
44, and the rotation of the sprocket 44 is transmitted to the shaft 4.
3 to sprocket 48, and the rotation of sprocket 48 is transmitted to chino 49 and sprocket 47.
46 will be rotated.

Therefore, when the chino 45, 49 is moved, the chino 45, 49 is integrated with the paper feed tray 4 via the bin 52 of the adjustment plate 50, and therefore rises.

Moreover, during this upward movement, the paper feed tray 4 is moved between support rollers 8a and 8b provided in the vertical direction inside the support member 5 and inside the lift guide plate 9 provided on the outside of both side plates 3a of the machine table 3. Since it is located in the predetermined forward leaning position,
．． It will rise together with the four.

At this time, the transfer paper placed on the second part of the paper feed tray 4 will shift forward because the paper feed tray 4 is tilted forward.
A front end guide plate 20 is located at the front end of the paper feed tray 4, and is substantially perpendicular to the top surface of the paper feed tray 4, so that each transfer sheet is lifted with its front edges aligned. There is no fear that the stacked transfer sheets will shift from each other during this upward movement, and at this time, the support rollers 45 and 49 are connected to the paper feed tray 4 on the side a in FIG. 8a and 8b do not impose a large load on the paper feed table 4 and can rise smoothly, and the uppermost transfer paper comes into contact with the paper feed roller 17, When a detection member (not shown) detects this, the paper feed tray 4 is stopped from rising, that is, the actuating member 4
0 will be locked.

After this, the paper feed roller 17 starts rotating and sends out the uppermost transfer sheet-like object, and the uppermost transfer sheet-like object is fed in parallel with the paper feed belt 16 stretched between the rollers 13 and 15. Only the uppermost transfer sheet is reliably fed when passing between the prevention roller 21 and the pair of upper and lower guide plates 3.
A pair of upper and lower guide rollers 32a pass through 1a131b,
32b, and then a pair of upper and lower guide plates 33a, 33.
A pair of upper and lower restart rollers (registration rollers) 34. It reaches between a and 34b and is put on standby.

Then, the pair of upper and lower restart rollers 34a, 34 is activated at a predetermined timing in response to a command from an electrophotographic copying device or the like.
b starts rotating and feeds the transfer paper.

After the transfer paper is fed sequentially from the topmost one as described above, when the number of transfer papers on the feeding tray 4 decreases, the number of transfer papers is reduced to the feeding roller 1.
When the position of 7 is lowered and a detection member (not shown) detects the lowering of the position, the actuating member 40 rotates and the sprocket 41 and the sprockets 42, 47, 44, 48, 4 are rotated.
6 to move both chains 45 and 49 to raise the feeding table 4, and when the feeding table 4 rises by a predetermined amount (approximately 3II11), the rise of the feed roller 17 is detected and the raising of the feeding table 4 is stopped. That is, the rotation of the actuating member 40 is stopped, and the transfer paper is sequentially fed out starting from the uppermost one in the same manner as described above.

When the transfer paper on the feeding table 4 runs out, the actuating member 40 is operated again by operating the operating section to lower the paper feeding table 4 to the initial state. When it is in the lowered position, the mechanism that intermittently rotates the double-feed prevention roller 21 by the front end of the feeding table 4 causes the link plate 23 to be pushed up, and the ratchet push-up pawl at the upper end of the other link plate 26 28 is raised and operated via the ratchet 27 to rotate the double feed prevention roller 21 by a predetermined angle, and at the same time, the tenth locking member 61 is held in an unlocked state and waits until the next command. .

In addition, when a paper feed cassette is provided below the main body of the electrophotographic copying device, a pair of guide plates 9 that open downward are provided.
If the transfer paper is inserted through the rollers 0a and 90b, the transfer paper will restart without using the paper feed tray 4.
It can be located at

Furthermore, if the manual feed unit 75 is used, first, after setting the paper feed tray 4 to the lowered position, the manual feed unit 75 is brought down from the state of ■ in FIG. If the plate 78 for placing a sheet-like object is pushed forward, the bin 79 at the rear end of the plate 78 for placing a sheet-like object will be pushed out into the groove 77a17.
7a, and the front end rotates the rotary plate 72 at the top of both side guide plates 55, 55 by approximately 906 turns against the biasing force of the spring 73, thereby forming a plate for placing a sheet-like object. 78 moves forward without being stopped,
This plate 78 pushes up the feed roller 17 slightly and is positioned below the paper feed belt 16, so if the transfer paper is placed on the top of the plate 78 for placing a sheet-like object, it can be transferred manually. This transfer paper is then transferred to the restart rollers 34a, 34a.
After being stopped at , it is fed at a predetermined timing.

Therefore, if a bundle of sheet-like materials is placed on the paper feed tray 4, the stack of sheets will be fed sequentially starting from the topmost one, and
If there is no need to use a paper feed unit, a lower paper feed unit can be used; otherwise, a manual feed unit provided in the main body 2a of an electrophotographic copying device etc. can be used; Since these are integrally provided on the machine base, even if a paper jam occurs, the operability of jam handling is greatly improved.

〔Effect of the invention〕

With this invention configured as described above, the drive transmission member is located on the longer side of both sides of the support member of the paper feed tray, so that it acts in a direction that cancels out the acting force acting on the support member. Therefore, it has excellent effects such as being able to smoothly pull up the paper feed table with a small driving force.

[Brief explanation of drawings]

The drawings show an embodiment of the automatic sheet feeding device according to the present invention, in which FIG. 1 is a plan view, FIG. 2 is a longitudinal sectional front view particularly showing the relationship between the paper feed tray and the lock mechanism, and FIG. FIG. 4 is a longitudinal sectional front view particularly showing the relationship between the paper feed tray and the intermittent rotation mechanism of the double-feed prevention roller; FIG. +a) (b
) is a schematic diagram showing the support member and adjustment member, Figure 6 is a schematic diagram showing the relationship with the manual feed unit, Figure 7 is a schematic diagram showing the intermittent rotation mechanism of the double feed prevention roller, and Figure 8 is a side guide. FIG. 3 is a schematic diagram showing the upper end of the plate. 1... Elevating paper feeding table section 2... Machine stand 3 for electrophotographic copying equipment, etc.
- Machine stand 4...Paper feed stand 5...Support members 8a, Bb...Support rollers 9...Lift guide plate 10...・Feeding section 13.15...Roller 16...Paper feed belt 17...Paper feed roller 20...Front end guide plate 21... Double feed prevention rollers 23, 26... Link plate 27... Ratchet 28... Ratchet push-up plate 31a, 31b, 33a 33b 90a, 90b... Guide Board 41.
42.44 46.47.4B・・・Sprocket 45.49
...... Che 7 50 ... Adjustment plate 53 ... Binion 54 ... Rack 55 ... Side guide plate 56 ... Handle 60, 62... Locking piece 61... 10th hook member 63... 20th hook member 70... Main body 72 of side guide plate... ...
・Rotating plate 73...Spring 75...Manual feed unit 77a...Groove 78...Plate for placing sheet-like objects Fig. 7 Fig. 8

Claims (1)

[Claims] An automatic feeding device for sheet-like materials attached to the main body of a recording device, etc., comprising a sheet feeding tray that can move up and down along support members provided on both sides, and a sheet feeding tray located above the sheet feeding tray. A feed-out section that feeds the sheets placed on the paper feed table starting from the highest one, and a feed-out section that matches the timing of the recording device, etc. in order to feed the sheet-like objects sent out from this feed section again. and a drive transmission member that transmits driving force from a drive source to the paper feed table, and the drive transmission member includes a paper refeed unit that starts and stops when An automatic feeding device for sheet-like materials, characterized in that it is connected to the long side of the sheet.