JPH0122184B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a paper feeding device that is a paper storage device used in copying machines, facsimile machines, and the like.

Configuration of Conventional Example and its Problems A conventional paper feeding device will be described in detail with reference to FIGS. 1 and 2, taking a copying machine as an example. In these drawings, 1 is a large-capacity paper feeder body frame, 2 is copy paper, 3 is a paper feed roller that feeds the copy paper 2 to the copy machine main body, and 4 is a paper feed stand on which the copy paper 2 is placed. , 5 and 6 are a paper separating claw and a pressing plate that separate the copy sheets 2 one by one, and as shown in FIG. 2, which is a view in the direction of arrow A in FIG.
is supported on the side wall 1a of the paper feeder body frame 1 via
b, to improve characteristics such as skew feeding and horizontal positioning during paper feeding due to dimensional variations in the copy paper 2. The above are the functions of the paper separating claw and the pressing plate, which are well known in the past.

By the way, in a large-capacity paper feeder, as the copy paper 2 decreases due to paper feeding, the copy paper 2 rises together with the paper feed table 4 by the drive of an unillustrated elevating drive means, and is constantly pressed against the paper feed roller 3. However, as shown in the figure, since the paper separating claws 5 and the pressing plate 6 protrude from the surface of the side wall 1a of the paper feeder main body frame 1, it is necessary to When a certain copy paper 2 rises, the paper separation claw 5 presses against the pressure plate 6.
It had the disadvantage that it collided with the lower end of the tower and could not rise smoothly.

Purpose of the Invention In order to eliminate the drawbacks of the above-mentioned conventional example, the present invention has been developed by attaching a paper separating claw and a pressing plate so as to follow the movement of a paper feed table which can be raised and lowered without interfering with the movement of the paper feed table. It is an object of the present invention to provide a paper feeding device with excellent lateral position characteristics and a large paper storage capacity.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides at least one partition plate in the frame of the paper feeder main body, a recess above the partition plate, and a slit-shaped opening at the lower end of the recess. The lower end of the paper pressing member is inserted into the opening of the recess, and the paper pressing member is attached to the recess of the partition plate with an elastic member interposed between the partition plate and the partition plate.

DESCRIPTION OF EMBODIMENTS Examples of the present invention will be described in detail below with reference to FIGS. 3 to 5. Note that the same parts as in FIGS. 1 and 2 are given the same reference numerals.

In the figure, reference numeral 8 denotes a partition plate provided on one side of the main body frame 1 of the large-capacity paper feeder, and recesses 9a and 9b projecting outward are formed above the partition plate 8. Further, slit-shaped openings 10a and 10b are formed at the lower ends of the recesses, respectively.

When attaching the paper pressing members 5 and 6, each of which has a paper separation claw integrally formed thereon, to the recessed portion of the partition plate 8, first, the lower ends of the paper pressing members 5 and 6 are formed at the lower end of this recessed portion. After being inserted into the openings 10a and 10b, as shown in FIG. 4, which is a view taken from arrow B in FIG. Note that the paper pressing member 5
uses two members, one of which is the paper separation claw 5 and the other of which is the press plate 6, but it goes without saying that the same effects can be obtained using only the paper separation claw 5, which will be described in detail below.

The partition plates 8 having such a structure are attached to the left and right sides of the main body frame 1 of the paper feeder as shown in FIG. Therefore, even if copy paper 2 is fed and the copy paper 2 stored on the paper feed stand is lifted by driving the elevating drive means (not shown), the lower end of paper pressing member 5 will be pushed into the recessed part of partition plate 8. Because it is inserted into the bottom opening of
It can be climbed smoothly without getting stuck.
Since the upper part of the paper pressing member 5 is always urged inward by the elastic member 7, the upper layer of the copy paper 2 is pressed to the other side, and a constant lateral position is maintained without skewing. The paper will be fed while Note that even if the partition plate 8 is attached only to one side and the other side is provided with only a rotating paper separating claw on the paper feeder main body frame 1, the copy paper can be separated into the paper feeder main body even if there is some size variation. Since the paper is fed along the frame 1, the same effect as described above can be obtained.

Effects of the Invention As detailed above, according to the present invention, since the lower end of the paper pressing member is inserted into the slit-shaped opening provided in the recess of the partition plate, there is a difference in level between the partition plate and the paper pressing member. The sheets are continuously connected without being formed, and the free movement up and down of the continuously rising paper is not obstructed. In addition, a number of excellent effects can be obtained, such as being able to press paper in the other direction and feeding paper with excellent skew and lateral position characteristics.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part of a conventional paper feeding device, FIG. 2 is a view taken along arrow A in FIG. 1, FIG. 3 is an exploded perspective view of a main part of an embodiment of the present invention, and FIG. B arrow view in Figure 3,
FIG. 5 is a perspective view of the embodiment of the present invention in an installed state. DESCRIPTION OF SYMBOLS 1...Paper feeder body frame, 2...Copy paper, 4...Paper feed table, 5...Paper separation claw, 6...Press plate, 7...Spring, 8...Partition plate, 9a, 9b... …
Recessed portion, 10a, 10b...opening.

Claims (1)

[Scope of Claims] 1. A paper feed table on which paper is placed and for raising the paper, at least one partition plate provided on the side of the paper feed table, and at least one partition plate formed above the partition plate. A recess, a slit-shaped opening formed at the lower end of the recess, a paper pressing member whose lower end is inserted into the opening of the recess, and an elastic member for attaching the paper pressing member to the recess of the partition plate. A paper feeding device characterized by: 2. The paper feeding device according to claim 1, wherein the paper pressing member is integrated with the paper separating claw.