JPH03115054A - Sheet material discharge device - Google Patents

Abstract

PURPOSE:To provide knee stiffness in a discharged sheet material by forming at least one of the rotary units of elastic material simultaneously with a hollow part provided in an side part of the rotary unit and adjustably providing a deformation mechanism for deforming an outer side unit of this hollow part in a radial direction. CONSTITUTION:The central part of a drive roller (rotary unit) 6 is formed solid, and its both side parts are formed in hollow parts 6a, 6a with an opening part 10 provided in the outside center of the hollow parts 6a, 6a. By slide- moving a slider 11, fitted to this opening part 10, on a drive shaft 4, an outer side part 6b of the hollow part of the drive roller 6 is deformed into a one-crest provided bellows shape, and in this deformed condition, this outer side part 6b is fixed onto the drive shaft 4 by a screw 12. When a sheet material S is pressinterposed between the drive roller 6 thus deformed and a driven roller 7 and discharged, knee stiffness is provided in the sheet material S, and it is springing-discharged and orderly placed on a paper discharge tray.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a sheet material discharging device for discharging sheet materials conveyed inside a machine to the outside of the machine. The present invention relates to a sheet material discharging device that discharges sheet material with stiffness.

(B) Prior Art Conventionally, in the paper discharge section of a copying machine, as shown in FIG. 8, sheet materials S on which images have been recorded are aligned and discharged onto a paper discharge tray 42 like a sheet layer 41. In this case, as shown in FIG.
After the sheet material S is discharged to the 0th part application, there have been cases where the application is independently equipped with a transport roller for the sheet material S, and the course of the sheet material S is suddenly bent in the 0th part.

When the sheets S are arranged like a sheet layer 41 on the paper ejection tray 42 as shown in FIG. The paper sheets were blown with a stiffness and stacked on the paper discharge tray 42 so as to be lined up.

(c) Problems to be Solved by the Invention However, when the sheet material S is ejected from a copying machine, when the sheet material S is made to have stiffness, the sheet material S comes into contact with the regulating plate, causing the sheet material to There are disadvantages in that the material S is damaged and, furthermore, the sheet material S gets caught on the regulating plate, resulting in jamming or skewing of the sheet member S.

In addition, in order to make the sheet material S stiff, it is necessary to attach a regulating plate to the discharge port of the sheet material S, and as shown in Fig. 9, the discharge port of the sheet material S that does not need to be stiff. However, there are disadvantages in that the sheet material discharge port must be changed in each case, such as not having a regulating plate installed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sheet material discharging device that can provide optimal stiffness to the sheet material discharged to the outside of the machine.

(d) Means for Solving the Problems The present invention has been made in view of the above-mentioned circumstances. For example, as shown with reference to FIGS. The sheet material (
In the sheet material discharge device W (1) that conveys the sheet material (S) and discharges the sheet material (S), at least one of the rotary bodies (6, 7) is formed of an elastic material, and A hollow part (6a) is provided in the side part of the rotating body, and the hollow part (6a) is provided in the side part of the rotating body.
It is characterized in that a deformation mechanism (11, 12) for deforming the outer body (6b) of 6a) in a radial direction is provided in an adjustable manner.

(E) Function Based on the above configuration, the sheet material (S) conveyed inside the machine is held between the pair of rotating bodies (6, 7) and discharged outside the machine. At this time, at least one of the rotating bodies (6) is made of an elastic material, and the outer body (6b) provided on the side of the rotating body (6) is deformed in the radial direction by the deformation mechanisms (11, 12).

The deformation is then adjustable.

Note that the symbols in parentheses are just examples and do not limit the configuration in any way.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows a sheet material discharging device 1. As shown in FIG. A drive shaft 4 is rotatably supported in one direction via a one-way clutch 5 on a side plate 2.3 provided at a sheet material discharge port of the sheet material conveying device.

The drive shaft 4 is connected to a drive source (not shown) via a gear 4a provided at the left end of the drive shaft 4.

Furthermore, three drive rollers 6 made of an elastic material such as rubber are attached (fixed) to the drive shaft 4.
is in contact with the driven roller 7. The driven roller 7 is rotatably supported by a shaft 9 fixed to a roller holder 8, and the roller holder 8 is supported by another member, and the driven roller 7 is pressed against the driving roller 6 with a predetermined pressure. I'm starting to do that.

As shown in FIG. 3, the drive roller 6 has a solid central portion and hollow portions 6a, 6a formed on both sides.
An opening 10 is provided at the center of the outside of 6a, and this opening 1
The outer periphery of the slider 11 made of a gold layer or the like is fitted into the outer circumference of the slider 11 . The slider 11 is slidably mounted on the drive shaft 4 through a hole 11a in the center, and can be fixed to the drive shaft 4 with a machine screw 12.

Further, the hollow outer portion 6b of the drive roller 6 can be deformed into a single bellows shape, and a state in which it is deformed and fixed to the drive shaft 41 with the machine screw 12 is shown in FIG.

Next, the operation of this embodiment will be explained.

In the state shown in FIG. 2, when the sheet material S is pinched and discharged by the driving roller 6 and the driven roller 7, each of which has chevron-shaped convex portions on both sides of the solid portion of the driving roller, the state shown in FIG. As shown in FIG. 8, the discharged sheet material S is given stiffness, and as shown in FIG.
The paper is ejected by flying upward and arranged on the paper ejection tray 42.

Further, in the state shown in FIG. 3, that is, when the sheet material S is pinched between the cylindrical driving roller 6 and the driven roller 7 and discharged, the stiffness is not required as shown in FIG. As shown in FIG. 9, the transfer from the copying machine in section A to the application in section B is extremely smooth.

Next, another embodiment will be described with reference to FIGS. 6 and 7. The same reference numerals are given to the members having the same configuration and operation as above, and the explanation thereof will be omitted. A drive roller 13 is fixed to the drive shaft 4,
The drive roller 13 has a cylindrical central portion, and the outer peripheral portion of the cylindrical body extends on both sides to form a cylindrical portion 13a. A link attachment 14 is in contact with the bottom of this cylindrical portion 13a, and is fixed to the shaft 4. A plurality of links 15 are pivotally supported in the radial direction at the link mounting 14, and a link 16 is attached to the tip of the link 15.
The tip of this link 16 is pivotally supported by a slider 17, and this slider 17 is slidably mounted on the drive shaft 4.

Therefore, by sliding the slider 17 along the drive shaft 4, the cylindrical portion 13 is
a is adjustable and deformed. This slider 17 is also fixed in position after being adjusted by screws or the like.

By doing so, this embodiment can exhibit effects equivalent to those of the previous embodiment.

Note that the adjustment of the deformation mechanism is performed at the factory or at the user's side depending on whether the device is used in the state shown in FIG. 8 or FIG. 9. At this time, in order to ensure that each roller is adjusted equally, it is preferable to carve a scale in the axial direction on the outer periphery of the shaft 4. Determine the position of the slider by referring to this scale.

(g) As described in detail, according to the present invention, the sheet material (S) is pinched and conveyed by the pair of rotating bodies (6, 7) that rotate in contact with each other and is discharged. At this time, at least one of the rotating bodies (6) has an outer body (6b) provided on the side of the rotating body (6).
) is deformed in the radial direction by the deformation mechanism (11, 12), so the discharged sheet material (S) can be made stiff. Further, since the deformation of the outer body (6b) in the radial direction is adjustable by the deformation mechanism (11, 12), the amount of stiffness imparted to the discharged sheet material (S) can be adjusted. The required stiffness can be applied either when the sheet material (S) is stiffened and ejected to the paper output tray, and when it is ejected and arranged, or when it is transferred to an application such as a sorter or finisher without stiffening it. It is possible to deal with differences in the amount, and the same sheet material discharge device (1) can discharge sheets under optimal conditions.

In addition, when performing firmness, a regulating plate, etc. is not necessarily necessary, and damage to the sheet material (S) due to contact with the regulating plate, etc., and furthermore, jams and slanting caused by getting caught, etc. line can be prevented.

[Brief explanation of drawings]

Figure 1 is a front view showing an embodiment of the present invention, Figures 2 and 3 are
The figure is a cross-sectional front view cut along the axis of Fig. 1, Figs. 4 and 5 are explanatory diagrams of the operation, Figs. 6 and 7 show other embodiments, and Fig. 6 is a perspective view. 7 is a cross-sectional front view cut along the central axis, FIG. 8 is a perspective view showing a state in which sheet material is discharged to a conventional paper output tray, and FIG. 9 is a diagram showing a conventional copying machine and an application. It is a vertical cross-sectional view of the connected parts. 1... Sheet material discharge device 6... Rotating body (drive roller) 6a... Hollow part 6b... Outer body (outer part),
7...Rotating body (driven roller)

Claims (1)

[Scope of Claims] 1. In a sheet material discharging device that transports a sheet material by pinching it between a pair of rotating bodies that rotate in contact with each other, and discharges the sheet material, the rotation of at least one of the rotating bodies A sheet material discharging device characterized in that the body is made of an elastic material, a hollow portion is provided on the side of the rotating body, and a deformation mechanism that deforms the outer body of the hollow portion in a radial direction is adjustable. .