JPS5940684Y2 - Sheet alignment and feeding device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that aligns sheets in the conveying direction while feeding them.

First, the sheet alignment and feeding device will be explained using FIGS. 1 and 2.

FIG. 1 is a plan view of an information processing device using a sheet as a medium, such as an optical character reading device or an optical mark reading device using a sheet alignment/feeding device, and FIG. 2 is a front view of the above-mentioned front view. be.

Section A is a paper feeding device, section B is a sheet alignment/feeding device, and section 0 is a reading device. , are sequentially fed by the inclined roller 3, and the information is read at the 0th copy.

Reference numeral 4 denotes a reference wall for the sheet guide, which is arranged so as to be on the same plane throughout the three devices mentioned above.

Reference numeral 5 denotes a reading head, which is arranged perpendicular to the reference wall 4.

In order to read the information on the sheet with the reading head 5,
It is necessary to align the sheets so that the sheet reference side when recording information is brought into close contact with the reference wall 4.

The sheet aligning and feeding device is used to meet such needs, and is used to transport misaligned sheets fed from the paper feeder to a group of sheet feeding rollers that are arranged at an angle with respect to the reference wall 4. Alternatively, the sheet is sent forward by a belt in the direction of the arrow while being pressed against the reference wall 4, and finally the sheet is aligned so that the reference side of the sheet and the reference wall 4 come into close contact.

This type of device, which implements the conventional alignment method using inclined rollers, is constructed as shown in FIG. 2 in a front view and in FIG. 3 in a plan view.

That is, by driving the belt 8 in the direction of arrow Q through the rotation of the motor 6 via the pulley 7, the roller 3, which is in contact with the back surface of the belt 8 and is fixed and inclined with respect to the reference wall, is rotated.

The arrangement is such that a motor 6 and a pulley 7 are vertically attached to a frame 9 that is attached parallel to a reference wall 4, and a belt 8 runs parallel to the reference wall.

On the other hand, in order to cause the sheet to run at an angle to the reference wall, the rollers 3 are arranged at an angle to the reference wall.

Therefore, the belt 8 and the roller 3Vi come into contact with each other in a relatively inclined manner, and power is transmitted.

Because of this structure, the friction during power transmission between the belt 8 and the roller 3 is severe, and the wear of the weaker material is significant, resulting in a short life and unstable power transmission between the two. There was a drawback.

In addition, a support part (not shown) is required to arrange the rollers 3 at an angle, but since it is necessary to process the rollers so that they are inclined with respect to the reference plane, it is difficult to manufacture them. The disadvantage is that it is relatively difficult and expensive.

Another conventional alignment system of this type using a diagonal belt is constructed as shown in FIG. 6 in a front view and FIG. 5 in a plan view.

That is, the rotation of the motor 6 is controlled by a belt 8a that runs obliquely toward the reference wall 4 via a pulley 7b, a bell) 8b, and a pulley 7a.
is driven in the direction of arrow Q.

The arrangement is such that a frame 9 is attached parallel to the reference wall 4.
Attach the motor 6 and pulley 7 vertically.

On the other hand, in order to cause the sheet to run at an angle to the reference wall 4, the belt 8a is designed to run at an angle to the reference wall 4.

Therefore, the belt 8a is obliquely hooked onto the pulley 7a.

For this reason, as in the previous example, there were disadvantages in that the bell 8a was extremely worn and had a short life span, and that the power transmission between the two was unstable.

Another drawback was that it was relatively difficult to manufacture.

This invention provides a highly reliable sheet aligning and feeding device that is easy to manufacture and eliminates the above-mentioned conventional drawbacks.

An embodiment of this invention will be described in detail below.

Fig. 2 shows a front view, and Fig. 4 shows a plan view. 6 is a motor, 8 is a belt, 7 is a pulley, and 3 is a roller. The order of power transmission is that the rotation of the motor 6 is transmitted through the pulley 7 as described above. The belt 8 is driven to rotate the roller 3 in contact with the back surface of the belt 8.

4 is a reference wall for sheet guide, and sheet feeding device B
It is installed so that it is on the same plane as the reference wall 4 of each of the paper feeding device A and the reading device C which are arranged before and after the paper feeding device A and the reading device C.

Reference numeral 9 denotes a frame, and the motor 6 and pulley 7 are attached perpendicularly to the frame 9, and the rollers 3 are also installed parallel to the frame 9.

The drive mechanism attached to the frame 9 arranged in this manner constitutes a drive unit.

The entire drive unit is arranged to be inclined relative to the paper feeding device A, the reading device C, and the reference wall 4.

By arranging it in this way, it is possible to realize a roller that is inclined with respect to the reference wall 4 for causing the sheet to run at an inclination, and power can be transmitted only through the relatively perpendicular portion of the drive mechanism.

In addition, the reference wall 4 (/'i) inside the sheet alignment and feeding device B is installed at an angle with the drive unit described above, but since there is no drive part, there is no problem like that described in the conventional drawbacks, and the manufacturing process is also comparable. It is easy to understand.

As mentioned above, in this invention, each part of the drive unit does not require an inclined part, so it is easy to manufacture and can be made at low cost, and it is possible to transmit power through relatively inclined parts of the drive unit. This has the advantage of preventing wear on the inclined portion and enabling stable power transmission.

In the embodiment, a sheet aligning and feeding device using inclined rollers has been described, but the same can be said of a sheet aligning and feeding device using a diagonal belt.

[Brief explanation of drawings]

Fig. 1 is a functional explanatory diagram of a sheet alignment and feeding device used in information processing equipment, Fig. 2 is a front view of the sheet alignment and feeding device, Fig. 3 is a plan view of a conventional sheet alignment and feeding device, and Fig. 4
The figure is a plan view showing an embodiment of this invention, FIG. 5 is a plan view of a device that realizes the conventional alignment method using a diagonal belt, and FIG. 6 is a front view of FIG. 1 is the seat, 2
is a feed roller, 3 is an inclined roller, 4 is a reference wall, 5/fi
Reading head, 6 is motor, 7.7a, 7b are pulleys,
8.8a, sb is a belt, and 9 is a frame. Note that the same reference numerals in the figures indicate the same casings or corresponding parts, respectively.

Claims (1)

[Scope of utility model registration request] A sheet-feeding roller group or belt that receives driving force through contact with the drive belt is arranged so that its feeding direction has a predetermined angle with respect to the reference wall for sheet guide, and the sheet being fed is transferred to the sheet-feeding roller group or the belt. In a device in which the sheet feeding roller group or belt is aligned and fed, the drive shaft of the drive belt for contact driving the sheet feeding roller group or belt is aligned in the feeding direction of the sheet feeding roller group or the belt. A sheet aligning and feeding device characterized in that the sheet aligning and feeding device is arranged so as to be substantially orthogonal to the sheet.