JPS6121909B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording paper sorting device for an office machine, which is used when sorting paper discharged from an office machine such as a copying machine or a copying machine.
It is an object of the present invention to provide a recording paper sorting device for an office machine that can quickly and finely classify sheets discharged from the office machine as necessary and store them in a tray.

In this invention, a plurality of trays are stacked on a frame attached to an office machine so as to be movable while being biased in one direction in the vertical direction, and a spiral groove opening on the upper and lower end surfaces is formed on the outer periphery. Lead cams are rotatably provided on both sides of the tray with axes substantially perpendicular to each other, protrusions are provided on both sides of the tray, and the protrusions of the tray are intermittently rotated at predetermined rotational angles of the lead cam from the biased direction. into one end of the groove, thereby
The trays are sequentially moved from the lower side of the lead cam to the upper side or from the upper side to the lower side, leaving an interval between the trays adjacent to the next stage to accommodate the paper output from the office machine. The paper recorded by the tray is finely sorted by recording content and distribution destination, and this sorting work can be done automatically and quickly while the office machine is in use. A feed pawl having a pawl portion is provided, and the pawl portion of the feed pawl starts pressing the protrusion against the end face of the lead cam at a timing before the protrusion of the tray coincides with the end of the groove. The structure is such that the feeding operation of the protrusion can be carried out more reliably.

An embodiment of this invention will be described based on the drawings. Reference numeral 1 denotes a copying machine which is an office machine, although only a portion thereof is shown.The copying machine 1 is provided with a discharge roller 3 for discharging paper 2 and a push roller 4 on the discharge side thereof, and a push roller 4 on one side of the discharge side. A flanged pin 5 and a fixing part 6 are provided. A frame 7 is detachably attached to the ejection side of the copying machine 1. That is, on the front surface of the frame 7, a hook hole 8 is formed in which a hole larger than the head of the flanged pin 5 and a hole that substantially coincides with the neck of the flanged pin 5 are connected in a daruma shape. A mounting piece 10 fixed to the fixing portion 6 is formed.

Next, the frame 7 is provided with a conveyance roller 11 and a push roller 12 for conveying the paper 2. A gear 13 is connected to the discharge roller 3, a gear 14 is connected to the conveyance roller 11, and an idle gear 15 meshing with these gears 13 and 14 is connected to the conveyance roller 11 as shown in FIG. It is held by an arm 17 supported by a coaxially arranged shaft 16. This arm 17
is biased by a spring 18 to cause the idle gear 15 to mesh with the gear 13.

Furthermore, the frame 7 includes a plurality of trays 19.
are stacked on top of each other and are held movable up and down. These trays 19, as shown in FIG.
The front edge and the right edge are bent into an L-shape, and the rear edge is bent into a U-shape for sufficient reinforcement, triangular openings 20, 21, and 22 are formed in the center, and a V-shaped notch 23 is formed on the left side. It is lighter and lighter. Each opening 20, 21, 22 has paper 2 of different size that is guided on one side by a guide piece 24 and is conveyed.
It is defined in a triangular shape that becomes tapered as it goes in the feeding direction of sheets 2a, 2b, and 2c, and the inclined edge 25 of the sheet 2 tapers as it goes in the feeding direction of sheets 2a, 2b, and 2c.
a, 2b, and 2c are inclined in a direction from the inside to the outside. Similarly, the inclined edge 26 of the notch 23 on the side opposite to the leading edge of the sheets 2b, 2c is also inclined in the same direction. Furthermore, protrusions 29 are provided on both front sides of the trays 19 from the lowest tray 19a to the second and higher trays.
are formed, and a cylinder 30, which is a protrusion, is inserted into these protrusions 29. Bottom tray 19a
is urged upward by a spring 31 as shown in FIG.

Next, the drive mechanism 32 will be explained with reference to FIGS. 1, 2, and 3. That is, a pair of left and right drive shafts 33 are supported on both sides of the frame 7, and a sprocket 36 to which the rotational force of a motor 34 is transmitted by a chain 35 is fixed to the upper part of these drive shafts 33.

A lead cam 38 having a spiral groove 37 extending from the lower end to the upper end formed on the outer periphery is fixed to the middle part of the drive shaft 33, and the lower end has a high part 39a from which a part of the outer periphery protrudes downward. cam 3
Further, a slide plate 40 is supported on these drive shafts 33 so as to be vertically movable while being urged upward by a spring 41. The cylinder 30 of the tray 19 is attached to these slide plates 40.
A long hole 42 for protruding is formed.
Further, on both sides of the frame 7, a slide plate 43 having a protrusion 43a pushed down by the high part 39a of the cam 39 at the lower part is provided with a pin 44.
The stroke is defined by the elongated hole 45 and the elongated hole 45, and it is slidably mounted while being biased upward by a spring 46. These slide plates 4
A feeding claw 47 having a claw portion 47a at the upper end is rotatably attached to the feeder 3. These feed claws 47
is biased by a spring 48 so that its tip enters between the cylinders 30 of the tray 19, but its protrusion amount is regulated by a stopper pin 49.

In such a configuration, the paper 2 copied by the copying machine 1 is ejected by the ejection roller 3 and the push roller 4, and furthermore, the rotation of the gear 13 is transmitted to the conveyance roller 1 via the idle gear 15 and the gear 14.
1, the paper is conveyed by the conveyance roller 11 and the push roller 12 and stored in the tray 19 on the uppermost stage.

When the drive mechanism 32 is in a stopped state, each tray 19 is urged upward by the lowermost tray 19a which is urged by the spring 31, but the cylinder 30 of the uppermost tray 19 is joined to the lower surface of the lead cam 38. As a result, each tray 19 remains stationary at a fixed position. Accordingly, the slide plate 40, which is urged upward by the spring 41, is also prevented from moving upward.

When storing the paper 2 in the next tray 19, the leading edge of the uppermost tray 19 is positioned above the lead cam 38, which is above the transport path of the paper 2, and the leading edge of the next tray 19 is placed above the lead cam 38. 3
Position it at the bottom of 8. That is, the motor 34 is driven to rotate the drive shaft 33 together with the lead cam 38 once. During this time, the cam 39
9a to push down the slide plate 43, the feed pawl 47 separates from the cylinder 30 due to the component force generated from the contact force with the stopper pin 49, and when the slide plate 43 returns to the upward position due to the force of the spring 46, the feed pawl 47 is released by the spring. 48 returns inward and begins to press the cylinder 30 with the claw portion 47a against the lower surface of the lead cam 38. Immediately after that, the cylinder 30 of the uppermost tray 19 is positioned in the groove 37 and the force of the spring 31 The cylinder 30 is fed into the groove 37 and rotated by the lead cam 38.
8 and the lower end of the spring 41. During this time, even if the cylinder 30 of the tray 19 in the next stage receives an upward force, it lags behind by one pitch of the groove 37. In this embodiment, the pitch of the groove 37 matches the height of the lead cam 38, and each time the lead cam 38 is rotated, the tray 19 is raised one by one. In addition, the lead cam 38 increases by the amount that it rises.
The cylinder 30 between the lower surface of the tray 19a and the lowest tray 19a
The number decreases by one, but each time the feed claw 47 moves away from the cylinder 30, the slide plate 40 moves closer to the cylinder 30.
It is intermittently raised by the force of the spring 41 with the same pitch as the outer diameter of. Therefore, a necessary interval for conveying the paper 2 is ensured between the trays 19 that are vertically adjacent to each other with the lead cam 38 in between. Although the trays 19 are sequentially sent above the lead cam 38, there is no need to move the tray 19a at the lowest stage above the lead cam 38. Accordingly, although the tray 19a is not provided with the cylinder 30, it may be moved above the lead cam 38 like the other trays 19. The tray 19 that has moved upward is moved again by the lead cam 38.
As a means for returning it to the lower side, the drive shaft 33 is tilted outward to press the tray 19, or the cylinder 30 is slidably attached and the cylinder 30 is slid inward to press the tray 19 downward. Alternatively, reverse the lead cam 38 and move the cylinder 30 to tray 1.
It is also possible to feed the material from the upper end of the groove 37 by urging it downward by the weight of the material 9 itself or by the spring 41 or the like.

The tip of each tray 19 moves in the vertical direction using the bent portion 27 at the rear, which is stacked on top of each other, as a fulcrum.
By forming the supporting portion 28 that smoothly projects on the bent portion 27, the contact area is small and it is possible to smoothly perform vertical movement without generating abnormal noise. Such an action can be achieved by using the sixth support part 28 instead of the support part 28.
As shown in the figure, the effect becomes even more noticeable when the supporting portion 50 is formed by fixing another piece with a small coefficient of friction.

Also, paper 2 slides into tray 19, but paper 2 slides into tray 19, but
Paper 2 is inserted into the openings 20, 21, 22 as shown in Figure a.
There is no opening edge facing the leading edge of the paper 2, and the inclined edge 25 is slightly inclined in the composite direction of the direction facing the leading edge of the paper 2 and the feeding direction of the paper 2, but the inclination in the feeding direction is greater. The paper 2 is strongly tilted toward the outside of the paper 2 as it moves toward the direction in which the paper 2 is fed.
22 and can be stored smoothly without getting caught.
Similarly, the paper 2 will not get caught on the inclined edge 26 of the notch 23. The advantages of such an effect can be understood when comparing the structure shown in FIGS. 7b and 7c. That is, the opening 51 shown in FIG. 7b is rectangular and has an opening edge 52 that faces the leading edge of the paper 2, and there is a possibility that the paper 2 may get caught on this opening edge 52. Further, although the opening 53 shown in FIG. 7c is triangular, its slanted edge 54 is inclined inward of the paper 2 as it goes in the traveling direction of the paper 2. Therefore, one side of the front edge of the paper 2 may enter the opening 53 and be bent downward by the inclined edge 54, causing the paper to become jammed.

As described above, by rotating the drive shaft 33, it is possible to select the tray 19 in which the paper 2 is stored, and when the copying machine 1 is used, the copied paper 2 can be stored according to the content, distribution destination, etc. It is possible to classify them in detail according to differences in number of copies, size, etc.

Note that when a plurality of grooves 37 are formed on the lead cam 38, the lead of the grooves 37 may be increased to ensure the necessary interval for storing sheets between the upper and lower trays 19.

Since the present invention is configured as described above, the lead cam is rotated continuously or intermittently to position a specific tray in the path of paper discharged from the office machine, and the recorded paper can be adjusted according to the recorded content, distribution destination, or paper. This sorting work can be performed automatically and quickly when the office machine is in use, and the protrusion can be reliably fed into the groove of the lead cam using the feed claw. It has the effect of moisturizing.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention.
The figure is a vertical side view, Figure 2 is a perspective view of the drive mechanism, Figure 3 is a partially exploded perspective view showing the operating mechanism of the feed claw, and Figure 4 is a partial exploded perspective view showing the power transmission mechanism to the conveyance roller. 5 is a perspective view of the tray, FIG. 6 is a side view showing another example of the support portion formed at the rear of the tray, and FIG. FIG. DESCRIPTION OF SYMBOLS 1... Copying machine (office machine), 2... Paper, 7... Frame, 19, 19a... Tray, 30... Cylinder (projection), 37... Groove, 38... Lead cam, 47... Feed claw, 47a... Claw portion.

Claims (1)

[Scope of Claims] 1. A frame is provided which is removably attached to the paper output side of an office machine for recording characters, patterns, etc., and a plurality of trays for storing paper discharged from the office machine are arranged in the upper and lower sides of this frame. The lead cams are stacked so as to be movable while being biased in one direction, and the lead cams have spiral grooves on the outer periphery that are open on both upper and lower end surfaces of the tray, and are rotatable about a substantially vertical axis. The lead cam is provided with protrusions on both sides of at least the trays from the lowest tray to the second and higher trays, which are fed into the ends of the grooves of the lead cam by the biasing force in the vertical direction. Recording paper sorting device for office machines. 2. A frame is provided that is detachably attached to the paper output side of an office machine for recording characters, patterns, etc., and a plurality of trays for storing paper discharged from the office machine are biased vertically to this frame. lead cams are provided on both sides of the trays, the lead cams having spiral grooves on the outer periphery that are open on both upper and lower end surfaces are rotatable about a substantially vertical axis; Protrusions are provided on both sides of each of the second and higher trays from the tray to the end of the groove of the lead cam by the urging force in the vertical direction, and the frame has an end surface of the lead cam at one end. A feed claw having adjacent claws that starts to press the protrusion against the end surface of the lead cam at a timing before the protrusion coincides with one end of the groove is controlled by a vertical movement locus of the protrusion. A recording paper sorting device for an office machine, characterized in that it is installed so that it can move forward and backward.