JP2544397B2 - Cut sheet feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] Regarding a cut sheet feeder for supplying a cut sheet for recording to a printer or the like, it is possible to provide an economical cut sheet feeder which can be removably added depending on the type of the cut sheet. For the purpose, an arbitrary number of second cut sheet feeders can be easily installed in the back of the first cut sheet feeder that is installed obliquely above the main body of the printer, and the number of cut sheet feeders can be increased according to the type of cut sheet. This is a cut sheet feeder in which the second cut sheet feeder of No. 1 is mounted, and is selectively controlled and fed arbitrarily, and the engaging means is used in this detachable structure, and the convex portion (or concave portion) provided on the back portion of the front feeder is provided. Part) is hooked on the concave part (or convex part) provided on the front part of the rear feeder, and the rear feeder can be rotated around this part. The control current connector has a structure that allows accurate mating connection, and the additional feeder at the rear has this engaging means at the front and rear portions, and the control current input connector and the subsequent feeder have the same structure. And an output connector for outputting.

[Industrial applications]

The present invention relates to a cut sheet feeder that supplies a cut sheet for recording to a printer or the like.

Generally, a printer is equipped with a cut sheet feeder to automatically feed cut sheets.

Here, in order to supply different types of cut sheets, it is necessary to use a cut sheet feeder provided with a plurality of supply means, and a cut sheet feeder that can be added as needed is demanded.

[Conventional technology]

A single bin cut sheet feeder (hereinafter abbreviated as cut sheet feeder) 3 shown in the side view of FIG. 2 and the perspective view of FIG. 3 (a) includes one hopper 2 for stacking a plurality of cut sheets 1. It is used by being attached to the printer 4 as shown in FIG.

The printer 4 includes a platen 5 that rotates in the direction of arrow A,
It is composed of a print head 6 which is opposed to this via a gap and moves back and forth in the axial direction to perform printing, and a pinch roller 7 which brings the cut sheet 1 and sheets such as slips into close contact with the platen 5 surface.

On the other hand, the cut sheet feeder 3 feeds the cut sheets 1 from the hopper 2 one by one, a feed roller 9 that feeds the cut sheets 1 fed to the platen 5, and a sheet on which printing has been completed indicated by an arrow A. A discharge roller 10 that rotates in a direction to discharge the discharged sheets, a stacker 12 that stacks the discharged sheets, and paper guides 11a to 11c that form a sheet conveyance path.
It is set to be larger than the feed amount of the platen 5 so that the paper is pulled and printed in close contact with the surface of the platen 5.

With this configuration, the cut sheets 1 stacked on the hopper 2 are automatically fed out in order from the uppermost one by the feeding roller 8, guided by the paper guides 11a and 11b, and fed by the feed roller 9 to the platen. Transferred to 5,
Is printed.

On the other hand, the cut sheet feeder 3 is provided with a manual insertion opening 13 for manually inserting paper into a slip or the like, and the paper inserted from the manual insertion opening 13 is pinched with the platen 5 via the paper guides 11a and 11b. When the platen 5 reaches the joint with the roller 7, it is transferred to the print head 6 by the rotation of the platen 5.

The rotational force of the feeding roller 8 and the feed roller 9 of the cut sheet feeder 3 is transmitted by a gear train 18 on the side of the cut sheet feeder 3 which meshes with a gear 14 fixed to the rotating shaft of the platen 5.

An electromagnetic clutch 19 is interposed between the gear train 18 and the feeding roller 8 as a control means 15 for interrupting the rotation of the feeding roller 8, and the control current of the electromagnetic clutch 19 is intermittently fed as necessary. The rotation of the roller 8 is intermittently controlled.

Here, when it is necessary to arbitrarily select and use different types of cut sheets 1, a double bin cut sheet feeder 16 as shown in FIG. 3 (b) or a triple bin shown in FIG. 3 (c). Use cut sheet feeder 17.

The double bin cut sheet feeder 16 is provided with two hoppers 2, and two kinds of cut sheets 1 can be arbitrarily selected and used.

On the other hand, the triple bin cut sheet feeder 17 is provided with three hoppers 2, and three types of cut sheets 1
Can be arbitrarily selected and used.

Fig. 4 shows a conventional triple bin cut sheet feeder 17
Is an example of a state in which is attached to the printer 4.

Each of the three hoppers 2 is provided with a delivery roller 8 and a feed roller 9, and each delivery roller 8 is connected to a gear train 18, 20, 21 via an electromagnetic clutch 19, and the gear train 18 is connected to the printer 4. Platen 5 Gear 14
Connected with.

Similarly, each feed roller 9 is also connected to the gear 14 of the printer 4 by a gear train (not shown).

Then, in addition to the paper guides 11a to 11c described in FIG. 2, paper guides 11d, 11 for guiding the cut sheet 1 fed from the second and third hoppers 2 to the platen 5.
equipped with e.

Therefore, by appropriately selecting the plurality of electromagnetic clutches 19 and controlling the connection / disconnection, it is possible to rotate the required feeding roller 8 and continuously feed the plurality of types of cut sheets 1 to the printer 4.

[Problems to be solved by the invention]

As described above, it is necessary for the cut sheet feeder to prepare different kinds of cut sheet feeders from a single bin cut sheet feeder to a triple bin cut sheet feeder depending on the use conditions, and select and use them properly.

Preparing these several types of cut sheet feeders has a problem that expensive equipment costs are required.

[Means for solving problems]

FIG. 1 is a side view of the cut sheet feeder of the present invention.

A cut sheet feeder that is obliquely erected on the upper side of the main body of the printer and that feeds the cut sheets 1 stacked on the hopper to the printing unit one by one by the rotation of the feeding roller 8, which is either the upper back or the lower back. On the other hand, the convex portion 33 of the engaging means
Alternatively, the concave portion may be provided on the other side, and the output connector 27 may be provided to output the control current supplied to the control means 15 (electromagnetic clutch 19) for interrupting the rotation of the feeding roller 8 to the subsequent additional cut sheet feeder 29. 1 cut sheet feeder 26
And the convex portion 33 on either the upper part or the lower part of the front part.
Alternatively, a concave portion 32 that is detachably engaged with the concave portion and is rotatable.
Alternatively, a convex portion is provided on the other side, and an input connector 28 that abuts and is connected to the output connector 27 is provided, and the convex portion 33 is provided on the lower rear upper part and the same lower portion as the first cut sheet feeder 26. Or a second cut sheet feeder 29 including a concave portion and an output connector 27, and the second cut sheet feeder 29 is detachably mounted on the back surface of the first cut sheet feeder 26. Further, the cut sheet feeder is configured such that another second cut sheet feeder 29 is mounted on the back surface of the second cut sheet feeder 29 to add a desired number of second cut sheet feeders 29.

[Action]

That is, the second cut sheet feeder 29 to be added is hooked on the feeder 26 or the engaging means of the feeder 29,
When rotated, the input connector 28 abuts on the output connector 27, and fitting connection can be accurately and easily performed. Further, the reverse operation can be removed for easy attachment and detachment.

Further, by this connector connection, the mounting is completed, and the desired number of the second cut sheet feeders 29 can be continuously added. The number of the second cut sheet feeders 29 to be mounted + 1 type The cut sheet 1 can be arbitrarily selected and delivered.

Thus, as compared with the conventional example in which separate printers are provided for each number of types of feeders, only the printer to which the first feeder is attached and the plurality of second feeders need to be provided, which is inexpensive.

〔Example〕

The present invention will be described in detail below with reference to an embodiment of the present invention shown in FIG. Throughout the drawings, the same reference numerals denote the same objects.

The drawing shows an embodiment in which two cut sheet feeders 29 are added to the first cut sheet feeder 26 to form a triple bin cut sheet feeder.

Similarly to the conventional example (FIG. 4), the printer 4 has a first cut sheet feeder 26 provided obliquely on the upper side of the main body thereof, in which the hopper 2 for stacking the cut sheets 1 is stacked.
A feeding roller 8 which is intermittently controlled by an electromagnetic clutch 19 which constitutes feeding control means 15, a feeding roller 9 for feeding, various paper guides 11a to 11d, and a platen 5.
A gear train 18 that meshes with the gear 14 of the above and applies a rotational force to each roller, and a gear train 31 that transmits the rotational force to the succeeding feeder are further provided. The engaging pin 33 is provided on both sides as a convex portion, and the output connector 27 for outputting the control current to the electromagnetic clutch 19 to the succeeding feeder is provided on the lower portion thereof.

The second cut sheet feeder 29, which is added to the rear of the first cut sheet feeder 26, is similarly provided in the hopper 2.
And a feed roller 8 intermittently controlled by an electromagnetic clutch 19 forming a control means 15, a feed roller 9 for transferring, a paper guide 30, and a gear train 35 for transmitting a rotational force to a succeeding feeder. For the purpose of use, a hooking hook 34 is formed in the front upper part of the hooking pin 33 of the first cut sheet feeder 26 so as to be turnable, and an output connector of the first cut sheet feeder 26 by the turning.
27 is provided with an input connector 28 for abutting and fitting connection, and as a further extension, the first cut sheet feeder
Similar to 26, a hooking pin 33 of a hooking means is provided on the upper rear part, and an output connector 27 for outputting a control current to the succeeding feeder is provided on the lower part.

The extension is performed by the second cut sheet feeder 29. When the hook 32 of the extension feeder 29 is hooked on the hook pin 33 on the rear portion of the first cut sheet feeder 26 and rotated, the input connector 28 becomes the first. Of the cut sheet feeder 26 of the output connector 27 of the
The free end of the gear train 31 of the cut sheet feeder 26 is connected to the feeding roller 8 of the additional feeder 29 via the electromagnetic clutch 19 and is further attached by the connecting and fixing bar not shown in the figure connecting and fixing both feeders. Becomes

In addition, the extension feeder 29 can be attached to the back of the attached extension feeder 29 in the same manner as above,
Configure a triple bin cut sheet feeder.

It is also possible to repeat this further and add more to the desired number.

Therefore, the rotational force of each roller is derived from the driving force of the platen 5 of the printer 4, and the gear train 18 meshing with the gear 14 transmits the rotation between the feeding roller 8 and the feed roller 9 of the first cut sheet feeder 26. Further, the gear train 31 connected to the feeding roller 8 rotationally transmits the feeding roller 8 and the feed roller 9 of the second cut sheet feeder 29, which is the first extension, to the gear train 31 connected to the feeding roller 8. The feed roller 8 and the feed roller 9 of the second additional feeder 29 are transmitted by the rotation of 31, and the rotation transmission is repeated to the subsequent additional feeder 29 in the same manner as described above.

The cut sheet feeder 26, 29 is used to feed the cut sheet 1 directly or through the connectors 27, 28 by feeding a control current to the electromagnetic clutch 19 of the selected feeder 26, 29 to rotate the feeding roller 8. Then, the cut sheet 1 there is fed out and further conveyed by the rotation of the feed roller 9, and the paper guides 11a, 11b or 1
When it is guided by 1a, 11b, 30 and reaches the contact portion between the platen 5 and the pinch roller 7, it comes into close contact with the surface of the platen 5 and moves integrally with it by rotation, and printing is performed when the print head 6 passes. Further, the contact is released at the leading end, the paper is guided by the paper guide 11c, reaches the discharge roller 10, is discharged, and is stacked on the stacker 12.

Further, although it has been omitted since it has been described in the conventional example, it also has a function of manually inserting and printing a slip or the like into the manual insertion opening 13 provided in the first cut sheet feeder 26.

As described above, the second cut sheet feeder 29
Can be arbitrarily added to form a desired cut sheet feeder, and various types of cut sheet feeders or printers with cut sheet feeders are not required as in the past.

In the present embodiment, the rotation of the feeding roller is intermittently connected via the electromagnetic clutch. However, without using the electromagnetic clutch, each feeding roller is directly connected to a motor and directly controlled to rotate the motor. The intermittent rotation may be controlled by various known configurations.

〔The invention's effect〕

As described above, by applying the cut sheet feeder of the present invention to a printer, various cut sheet feeders such as a double bin and a triple bin can be arbitrarily configured by extension, and a great effect is achieved economically and industrially. Play.

[Brief description of drawings]

1 is a side view of a cut sheet feeder of the present invention, FIG. 2 is a side view of a conventional single bin cut sheet feeder, and FIGS. 3 (a) to (c) are perspective views of a conventional cut sheet feeder. FIG. 4 is a side view of a conventional triple bin cut sheet feeder. In the figure, 1 is a cut sheet, 2 is a hopper, 3 is a cut sheet feeder (single bin), 4 is a printer, 5 is a platen, 6 is a print head, 7 is a pinch roller, 8 is a feeding roller, 9 is a feed roller, 10 is a discharge roller, 11a to 11e and 30 are paper guides, 12 is a stacker, 13 is a manual insertion slot, 14 is a gear, 15 is control means, 16 is a double bin cut sheet feeder, 17 is a triple bin cut sheet feeder, 18 , 20, 21, 31, 35 are gear trains, 19 is an electromagnetic clutch, 26 is a first cut sheet feeder, 27 is an output connector, 28 is an input connector, 29 is a second cut sheet feeder, and 32 is a hook. The hook 33 is a hooking pin.

 ─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP 54-138720 (JP, A) JP 61-45847 (JP, A) JP 60-230164 (JP, A) JP 60- 6538 (JP, A) Actually opened 61-181030 (JP, U)

Claims (1)

(57) [Claims] 1. A cut sheet feeder which is obliquely erected on the upper side of a main body of a printer and which feeds cut sheets (1) stacked on a hopper one by one to a printing section by rotation of a feeding roller (8). The convex portion (33) or the concave portion of the engaging means is provided on either the upper rear portion or the lower portion of the rear portion, and the feeding roller (8) is provided on the other.
A first cut sheet feeder (26) having an output connector (27) for outputting the control current supplied to the control means (15) for intermittently rotating the sheet to the subsequent extension cut sheet feeder (29); The convex portion (33) is provided on either the upper part or the lower part of the part.
Alternatively, a concave portion (32) or a convex portion which is detachably engaged with the concave portion and is rotatable is provided on the other side, and the output connector (2
7) is provided with an input connector (28) for abutting and fitting connection, and a convex portion (33) or a concave portion for output as well as the first cut sheet feeder (26) at the upper part of the back and the lower part of the back. A second cut sheet feeder (29) including a connector (27) and a second cut sheet feeder (29) which can be attached to and detached from the back surface of the first cut sheet feeder (26). The second cut sheet feeder (29) is mounted, and another second cut sheet feeder (29) is mounted on the back surface of the second cut sheet feeder (29) to add a desired number of second cut sheet feeders (29). Cut sheet feeder characterized by