JPS59158762A - Handling device for sheet material - Google Patents

Abstract

PURPOSE:To improve the accuracy of bine positioning as well as to simplify a sheet sorting device of a duplicated machine and the like by providing an assisting device for bine stopping on a screw of a lead cam for preventing the sliding of bines. CONSTITUTION:As cam faces of lead cams 12, 121, 17, and 171 to move a group of bines in one body vertically are provided with uniform inclination, stopping positions of cam followers 13-13n are slided. Consequently, a take-in route by guides 3 and 3 and stopping positions of corresponding bines are slided so that a sheet member can not be stored. Therefore, a part of the cam faces of lead cams 12 and 121 and 17 and 171 is provided with horizontal planed 19 and 20, and the feeding of sheets is synchronized with the rotation of lead cams to stop the rotation of the cams when the cam followers are on the horizontal planes for preventing the sliding of the bines automatically. This construction permits to improve the positioning accuracy of the bines against a take-in roller of a sheet material handling device.

Description

Detailed Description of the Invention The present invention relates to the distribution and accumulation of sheet materials (hereinafter simply referred to as sheets) called copy paper, transfer paper, and recording paper that are carried out from image forming apparatuses such as copying machines, printing machines, and other recording devices. The present invention relates to a sheet material handling device such as a sheet sorting device (sorter) for handling etc.

In particular, a group of bins is integrally moved vertically up and down by a moving means using a lead cam, and one of the bins (also called a tray) in the group is sequentially associated with a sheet conveying means to distribute sheets to each bin. The present invention relates to a sheet material handling device.

Since the lead cam described above is a lead screw, the cam surface has a uniform slope. Therefore, in order to stop the bottle at a fixed position, a stop assisting member such as a brake is required, resulting in a complicated structure and high cost.

An object of the present invention is to obtain a lead cam type bin member moving type sheet member handling device that eliminates the above-mentioned drawbacks. It is characterized by not requiring any parts.

The embodiments shown in the drawings will be described in detail below.

FIG. 1 is a front view of a sheet material handling device connected to an image forming apparatus 1. FIG. The sheet P ejected from the image forming apparatus L by the upper and lower paper ejection rollers 2, 2 passes between the upper and lower sheet transport guides 3, 3 of the sheet material handling device A, and is transported into the bin row B by the transport rollers 4, 4. The signal is sent out as shown by the dotted line. The carry-in speed of the carry-in rollers 4 is set higher than the discharge speed of the paper discharge roller 2112 of the image forming apparatus I to prevent the sheet from forming a loop within the carry-in guide of the sheet material handling apparatus A.

FIG. 2 is an enlarged front view of the sheet material handling device A.
FIG. 3 is also a parent diagram. A sheet P discharged from the image forming apparatus 1 and sent out from the sheet material handling apparatus A
are sequentially put into bins 51 to 5n arranged vertically. At this time, since the position of the sheet carry-in guide 3113 is fixed, each bin 5. ~ Guide 5n in order 3
・It is necessary to move the sheet P so that it faces the discharge port No. 3, and to open a space above the bin (52 in the example in FIG. 2) facing the discharge port to facilitate the conveyance of the sheet P.

The means for moving the bin group will be explained with reference to FIGS. 1 to 4.

A shaft 6 of a motor M installed on the front side of the sheet material handling device A is extended vertically upward, and a transmission wheel 7 and a gear 8 are fixed to the shaft 6 vertically. Transmission is transmitted from the transmission wheel 7 to a transmission wheel 71 attached to the vertical shaft 9 on the opposite side of the device A by an appropriate transmission band 10 such as a wire belt or chain, thereby rotating a gear 81 provided on the shaft 9.

Gears 8 and 81 rotate at a constant speed, and gear 1 meshes with each other.
Rotate the lead cam 12-121 which is integrated with 1 and 11□. The pitch of the spiral grooves of the lead cams 12 and 121 is made equal to the stacking pitch of the bins 51 to 5n, and cam followers 13.
-13n as shown in FIG. facing each step of the spiral groove. 14.14 is bottle 5. ~5
n cam follower 13. ~ 13n row lifting guide,
It is installed on the side plate A of the device A.

Only the cam follower 13n of the bottom bin 5n is engaged with the spiral groove of the lead cams 12 and 12□, and when the lead cams 12 and 121 rotate once, the bin 5n moves up (and down) by one pitch of the spiral groove. do. A vertical sliding plate 15 is provided integrally with the bottle 5n, and each cam follower 131-13n is inserted into the long hole 151 of the vertical sliding plate 15. And the cam follower 139 of the second stage bin 59 from the lower blade)
is received at the lower end of the elongated hole 15 as shown in FIG. Therefore, the bottom bin 5n is the lead cam 12/1 as described above.
When the bins 21 are moved by one pitch, the entire group of bottles 51 to 5n supported by the sliding plate 15 moves upward (or downward) as one unit.

Lead cam 12 exposure 12. and gear 1-11. Lifting lead cams 17, 17 with large diameter and helical pitch between
．． will be established. When the bin groups 51 to 5n rise by one pitch of the lead cams 12 and 12□ as described above, the large lead cam 17ψ17. The cam follower 131 of the bin (5□ in the example in FIG. 5) immediately below the large lead cam 17, 17. within the operating range. In this state, when the lead cams 12, 12□, 17, 17□ rotate to the left in synchronization with sheet feeding, the large lead cams 17, 17.
The lower end 172 of the helix is the cam follower 13.
．． Since the bottle 5I is scooped up and lifted by the lead angle, the front side of the bottle 5I is lifted as shown by the chain line 5'1 with the free support section 23 on the rear side as the tilting axis, and as shown in FIG. A space is formed above the bin 52.

The lead cams 12 and 12 that integrally move the bin group in the vertical direction as described above, and 17 and 171 are conventionally just lead screws as shown in Fig. 5, so the cam surface that receives the cam follower is uniform. It is a slope. Therefore, the stopping positions of the cam followers 13 to 13n are shifted. Therefore, there is a possibility that the loading path by the guides 3 and the stopping position of the receiving bin are different, making it impossible to store the sheet material. Therefore, it is necessary to provide a brake in the drive system in order to prevent the stop position of the bin from shifting.

In view of this point, the present invention provides a stop assisting means for preventing the bottle from slipping on the lead cam itself. It was formed in When the cam follower is on this horizontal plane, the above-mentioned displacement of the bins can be automatically prevented by synchronizing the rotation of the sheet feeder and dome cam so as to stop the cam rotation.

Large lead cam 17.17. Also, as shown in Figure 4, the horizontal part 2
0 is formed.

The flat parts 19 and 20 in the above embodiment are the arcuate recesses 2 in FIG.
1. It may also be transformed into a rectangular recess 22 shown in FIG.

As described above, the present invention makes it possible to prevent bin misalignment by performing simple processing on the lead cam for vertically moving the bin group, and improves the positioning accuracy of the bins relative to the carry-in roller of the sheet material handling device. This has the effect of simplifying the device.

[Brief explanation of the drawing]

Fig. 1 is a front view of a sheet material handling device connected to an image forming apparatus, Fig. 2 is an enlarged front view of the sheet material handling device, Fig. 3 is a main perspective view of Fig. 2, and Fig. 4 is a front view of the sheet material handling device connected to an image forming apparatus. FIG. 5 is a partial view of a conventional lead cam, FIG. 6 is a partial view of the lead cam of the present invention in which a portion of the lead cam surface is provided with a substantially horizontal surface, FIG. The figure is a partial view of a modified example. A is a sheet material handling device, B is a group of bins, 5° to 5n
is bottle, 12" 12t, 17" 17+ is lead cam, 1
3 to 13n are cam 2 lowers, 3 and 3 are sheet carrying guides, and M is a motor. Patent applicant Canon Co., Ltd. Agent Fuku 1) r!゛
So

Claims (1)

[Claims] (1) As a bin member moving device in a sheet material handling device that distributes sheets by moving a group of bins in the vertical direction integrally by a moving device and sequentially aligning one of the bins in one group with a sheet conveying device. A sheet material handling device characterized by using a lead cam forming a bin stop assisting means.