JPS6316680Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention relates to a sorter for sorting paper, and more specifically, the invention relates to a sorter that sorts paper, and more specifically, removes static electricity from paper fed into a storage bin from a copying machine, printing machine, or other recording device. The present invention relates to a sorter equipped with means for

(Prior art) Generally, paper transported through an image forming device such as a copying machine or a sorter has rubber rollers, guide plates, etc.
Electrostatographic processes often result in static charges, especially during drying periods.
Due to the static electricity charged on the sheets, the sheets in the sorter adhere to surrounding members, or the sheets repel each other and float up, causing a problem of poor storage.

Therefore, a method is already known in which an effective static electricity removing means is provided in a member that stores paper. Generally, self-discharge type static eliminators are often used as static eliminators. This is generally called a static elimination brush or static elimination bar, and has a structure in which extremely thin metal needles or conductive fibers are supported by a metal member.
This type of static eliminator is often used because it is inexpensive and highly effective, but if there is a metal component nearby, the capacitance will increase and the potential of the paper will not rise and it will be difficult to discharge. In addition, consideration must be given to ensuring that the static eliminator is grounded, as its effectiveness decreases as the potential of the static eliminator increases. Therefore,
Methods such as making the paper storage member made of resin or fixing it to a metal bracket to ground the static eliminator have been put into practical use, but many paper storage members (hereinafter referred to as storage bins) are arranged vertically like in a sorter. In such a case, it is convenient to provide a static eliminator on the lower side of each storage bin to eliminate static electricity from sheets fed into the lower storage bins.

On the other hand, it is desirable that each storage bin be constructed so that it can be easily attached and detached from the standpoint of assembly and service. Therefore, if the storage bins are made of synthetic resin and a static eliminator is attached to each, when each storage bin is set in the bin holder of the sorter, there is a need to install a metal wire between the static eliminator and the sorter body to ground them. The problem arises that it must be brought into contact with

(Purpose) The present invention was made to solve the above-mentioned problems, and its purpose is to ensure electrical connection between the static eliminator attached to the removable storage bin and the sorter main body with a simple structure. To provide a sorter that stably stores sheets in each storage bin by contacting them.

(Structure) The structure of the present invention will be described below based on one embodiment.

The sorter according to the present invention includes a storage bin 1 and a static eliminator 2 shown in FIG. 1, and a bin receiver 3 shown in FIG.
and an elastic conductive plate 4.

In FIG. 1, the storage bin 1 is for storing paper fed in from the left side in the figure, and is made of synthetic resin, with a vertical portion 10 forming a reference surface for aligning the edges of the paper after feeding is complete. It integrally includes a rear end horizontal portion 11 and a front end horizontal portion 12 parallel to the paper feeding direction, and an inclined intermediate portion 13 that smoothly connects these horizontal portions 11 and 12 and is inclined upward in the paper advancing direction. are doing. The front end horizontal portion 11 has rising portions 1 at both ends.
1a, and furthermore, the rising portion 11a has an overhanging portion 11b extending to both sides at its upper edge. The projecting portion 11b has a stepped portion 11c formed at an end in the paper feeding direction. At the connection between the vertical part 10 and the front horizontal part 11, a first claw 14 is bent along the lower surface of the front horizontal part 11, and a second claw 15 extends in the opposite direction to the front horizontal part 11. is formed (see Figure 2). The first claw 14 holds a brush holder 20 (described later) with its own elasticity. The inclined intermediate portion 13 is reinforced by four ribs 13a formed along the paper feeding direction to reduce the area of contact with the paper. Further, the inclined intermediate portion 13 has a notch 1 at one side edge thereof.
3b, so that the stored paper can be easily grasped by hand.

The static eliminator 2 is of a self-discharge type, and includes a static eliminator brush 21 made of a large number of metal needles or conductive fibers, and a brush holder 20 that fixedly supports the static eliminator brush 21.
It is made up of. The brush holder 20 is made of a conductive member such as aluminum alloy, and has a U
It has a cross section with a total length slightly longer than the width of the storage bin 1. A plurality of groups of static eliminating brushes 21 are arranged at appropriate intervals in the longitudinal direction of the brush holder 20.
is located. As clearly shown in these figures, the static eliminator 2 is installed near the paper inlet, so the paper passes directly under the static eliminator 2 from the front end to the rear end, thereby effectively eliminating static electricity. will be done.

In FIG. 3, the bottle holder 3 is a molded product made of synthetic resin, and has a support groove 3a into which the overhanging portion 11b (see FIG. 1) of the storage bin 1 is inserted.
are formed at predetermined intervals in the vertical direction. When the overhanging portion 11b is inserted into the support groove 3a, the stepped portion 11c (see FIG. 1) abuts against the side surface 3b of the bin receiver 3 near the paper feed opening. The bin holder 3 is fixed to both side plates 5 of the sorter (not shown) main body, but only one side is adapted to hold an elastic conductive plate 4 between the side plate 5 and the side plate 5 via screws 6 (fourth (see figure).

The elastic conductive plate 4 consists of a base end 4a held between the side plate 5 and the bottle holder 3, and a number of protrusions 4b bent from one side edge of the base end 4a. The elastic conductive plate 4 is formed by bending protrusions 4b that are punched out in a comb-like shape as shown in the figure from a thin plate having elasticity and conductivity, such as a stainless steel plate, and the protrusions 4b are approximately It has a trapezoidal shape, and the spacing between adjacent protrusions 4b is the same as that of the support grooves 3a, and the protrusion 4b is located between the adjacent support grooves 3a.

FIG. 4 is a plan view showing the state of contact between the static eliminator 2 and the elastic conductive plate 4 at a position where the storage bottle 1 is correctly attached to the bottle holder 3, as indicated by the two-dot chain line.
As clearly shown in this figure, the overhanging part 11b is inserted into the support groove, and the stepped part 11c is inserted into the bottle receiving side 3b.
In the illustrated mounting position where the brush holder 20 of the static eliminator 2 is in contact with the protruding piece 4b of the elastic conductive plate 4, the protruding piece 4b is bent and constantly attaches to the brush holder 20. It is biased in a direction to press against the holder 20.

(Effects) As is clear from the above explanation, the present invention has an elastic conductive plate with comb-like protrusions arranged at a position where it comes into elastic contact with the static eliminator when the storage bin is attached to the bin holder. This has the effect that static electricity is reliably removed and the batteries are stably stored in each storage bin. Also,
Forming the protrusions that contact the individual static eliminators in a comb-teeth shape allows the elastic conductive plate to be integrally processed, resulting in extremely low cost compared to providing separate contacts for each static eliminator. Furthermore, since it is a comb-like protruding piece, its elasticity is uniform and flexible, and the contact with the static eliminator is stable.

[Brief explanation of the drawing]

Figures 1 and 2 are a perspective view and a partial side view showing the storage bin and the static eliminator, Figure 3 is a partial perspective view showing the bottle holder and the elastic conductive plate, and Figure 4 is a plan view of the storage bin in the mounting position. It is. 1...Storage bin, 2...Static eliminator, 3...Bin holder, 4...Elastic conductive plate, 5...Side plate.

Claims (1)

[Claims for Utility Model Registration] A large number of storage bins made of synthetic resin into which paper is fed, a static eliminator that is substantially integrally fixed to each of these storage bins, and a plurality of storage bins each configured to feed paper. In a sorter that has bin holders that are detachably supported on both sides in the entry direction and side plates that fix these bin holders, the bins are fixed to the side plates and are fixed to each storage bin when the bins are attached to the bin holders. A sorter comprising an elastic conductive plate formed with comb-like protrusions with which a static eliminator comes into elastic contact.