JPS5969322A - Paper feeding cassette - Google Patents

Abstract

PURPOSE:To permit a blank-form in a few sizes to be set with simple construction by forming the stepped parts corresponding to the length of the blank- form in the feeding direction and a pair of stepped parts corresponding to the width of the blank-form, on the bottom surface of a paper feeding cassette. CONSTITUTION:In a paper feeding cassette 21 for storing blank-forms 6-8 inside and consisting of a box body having a bottom surface 21a in nearly rectangular form, the stepped parts 6a-8a for positioning blank forms in the direction of paper feed in cooperation with a front edge part 21b are formed at the position corresponding to the length of blank-form, in the reverse direction to the direction of paper feed from the front edge part 21b, and each pair of stepped parts (6b, 6c), (7b, 7c) and (8b, 8c) are formed at a nearly equal intervals to the width of the blank-form, in parallel to the direction of paper feed. Said stepped parts 6a-8a are constituted in stairs form so as to be shallower rearward from the front edge part, and a pair of stepped parts are constituted in stairs form so as to be shallower frontward from the center part of the bottom surface.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feed cassette, and particularly to a paper feed cassette.
Item 7) relates to a paper feed cassette for storing paper inside the machine.

Conventionally, several types of paper can be set.
In the early days, paper feeding power sectors as shown in FIGS. 1 and 2 were used.

In the 11th) Ic, the vapor guide 2 for positioning the paper in the paper feed cassette 1 is identified by the female screw 16. In addition, the paper guide 2
A restraining device 6 for positioning the leading edge of the paper is attached to it.

How many different forms of paper? When determining - 1) 1) Fixing the Vc vapor guide 2 as described above.
(-Remove the female screw 13, move it to a predetermined position that matches the size of the paper, and at that position fix the vapor guide 2 to the paper feed cassette 1 again with the screw 16. In 2-I, a movable paper guide 12 is attached to the paper feed cassette 11, which is pressed against the paper by a spring 4 to position the paper at a proper position.

The paper is positioned at a good position by pressing the vapor guide 12 against both left and right ends and the rear end by the spring 4, and the leading end of the paper is positioned by the restraining tool 3.

The positioning of paper of different sizes or of the same size is done in the same way as above.
This is done by pressing the -+jJ moving type paper guide 12 against the paper by the spring 4.

However, if the paper feed cassette 1 as shown in Figure @1
Each time you set paper with a different rise, remove the threads 11 and 16 and move the vapor guide 2.
II+, which had the disadvantage of very poor operability.

However, the paper feed cassette 11 shown in the second section 1 has the drawbacks of being complicated in structure and high in cost because the vapor guide 12 is of the Machi!lii+ type.

The purpose of the present invention is to eliminate the above-mentioned drawbacks, and to provide paper feeding power cents which is inexpensive in the #1 cylinder, has good operability, and can set paper of several sizes. It is about providing.

In order to achieve the above object, the present invention provides a paper feed cassette with a cassette according to the length of the paper in the feeding direction.
A stepped portion is formed at i to position the paper in the feeding direction.
In addition, if a pair of stepped portions corresponding to the width dimension of the paper are formed on the bottom surface and positioned in a direction perpendicular to the feeding direction, a common pressure is created, and each stepped portion forms a staircase in the feeding direction. in the form of
It becomes shallower (higher) in the direction opposite to the feeding direction, and in a direction at an angle of ■θ to the feeding direction, the stepped portion is shallower at the end than at the center of the bottom surface. The following describes and explains embodiments of the present invention with reference to accompanying drawings. FIG. 3 is a plan view of an embodiment of the present invention in the bottom feed system, and FIG.
As clearly shown in FIG. 4, which is a cross-sectional view taken along the line, the bottom surface 21a of the paper feed cassette 21 is structured in the form of one floor in the paper feeding direction, and the front side (feed (feeding direction side) i+; However, it is twisted so that the force is high (still, shallow) on the rear side (opposite side to the feeding direction).

In the figure, the stairs are formed into six steps, and the front end 21
The distances from step portions 6a, 7a, and 8ai to step portions 6a, 7a, and 8ai are determined according to the size of paper to be stored there.

1. As you can clearly see in Figure 6, the bottom surface 218 of the paper feed cassette 21 has a pair of stepped parts even in the direction perpendicular to the paper feeding direction, and the center part is low and still The ends are raised high.

That is, 1-1; l', 31 (orthogonal to the paper feeding direction IC (・J:, front end 211)
The distance from each step 6a, 7g, and 8ut is equivalent to the width of the horizontal hole 11 of the paper (-tz) width of 1. %I
The steps 6b, 6C extend by a certain length from both ends of the steps 6a, 7n and 8B toward the force of the front end 21b.
17b, 7cii, 8h, 8c are provided in pairs, respectively.

In addition, as shown in FIG. 6, paired hook-shaped portions are formed, and the hook-shaped portions (") are formed in accordance with the width dimension θ of each paper size.
The spacing between the part and the hook-shaped (-) part is determined.

As a result, for example, the minimum size of 6 sheets of paper, the front edge? lb
After that, the right end of the stepped portion 6a and the stepped portions 6b and 6c is positioned.

Further, the paper 7 has a front end portion 21b, a stepped portion 7a, and a stepped portion 7.
b and 7c, its front, rear, left and right ends are determined in position f1a).

Similarly, sheets of different sizes are tttt'11
-0 position (ft. Decision M] Sanero.

6. In this case, the bottom surface 21FL of the paper feed unit 1-21 near the front end 21b is formed in a flat shape. , the feed roll 5 faces the hole 2jcK.

The feeding roll 5 contacts the lower surface of the paper placed on the flat surface and rotates in the direction of the arrow shown in FIG.・Send out.

1.9. As mentioned above, the bottom surface 21a of the paper feed cassette 21 is formed so that the front side of the stored paper is low and the rear side is high. By using the self-weight KL to ensure that the AirP is in contact with the part 21bK, the paper feeding timing can be set correctly by holding the paper at the correct timing, and the occurrence of jams can be reduced. .

In ffr-1 Ail real lrH example W, front end 21
b, depending on the method of different paper sizes
(hook shape) (1) 1 interval between 1f is made to be different from Ur313, but even if H', Jty person's paper ° rise
- It is obvious that it may be formed in a plane (straight line).

5th 1t, [, A plan view of another embodiment of the present invention applied to the top feed system, FIG. 6 is y-y′ of FIG.
This is a diagram of Shin (, cutting 1 (] i?? + i. In both diagrams,
The same dimensions as in Figures 3 and 4 indicate the same or C'' equivalent parts.

As shown in Figure 6, the paper feed cassette 21
21d of the front wall (on the feeding direction side of sheets 6, 7 and 8)
is formed at a predetermined inclination angle toward the feeding direction 7). A feed roll 15 is provided at a predetermined position of the paper feed cassette 21 for feeding the shredded sheets 6, 7, and 8 to the upper side of the paper feed horn set 21.

Furthermore, as shown in FIG. 6, a storage section 31 is formed on the bottom surface 21a of the paper feed cassette 21. A restraining tool 23 for positioning both ends is housed.

That is, as can be seen from FIG. 5.6, for example, the paper 6 having the size of a hanger is placed on the plane of the bottom surface 21 & described above with the restraining tool 26, the stepped portion 6a in the feeding direction, and the direction perpendicular to the feeding direction. It is positioned by a pair of step portions 6b and 6c.

In the same way, paper of different sizes is placed in each step (
For example, 7a, 7b and 7C18818b and 8c
) and the restraint tool 23.

At this time, 1) Place the paper on the right side of the sheet.■11. 611 Ni press +L, -JL23 +Y, pulled out from the 11゛4 compartment filter 1, climbed onto the 1f of the 611 Ni press +l tool 23, and removed both ends of the paper 6) position by holding down the part.

It should be noted that the unused deterrents 23 are kept so that they do not fall into the storage section 61 and interfere with the feeding of the paper 6.

By rotating the above-mentioned feed roll 15 in the direction of the arrow shown in FIG. 4, the six sheets of paper positioned at ), 1(Ill F(1”,'l
+1. l sa, h mouth.

In each of the embodiments described above, a restraining device or a hook-shaped portion for positioning both ends of the paper is provided for each paper of different sizes.
Z+. Set the green color in the common position 4, and set only the ^11 edge to the position (〆C), and position the left and right edges by using the pair of steps (6b and 6c, 7b and 7) in the width direction of the paper. It may also be done by ().

As described above, the present invention provides paper positioning; Then, a stepped portion corresponding to the length of the paper θ) in the feeding direction and a pair of stepped portions corresponding to the width of the paper are formed on the bottom of the paper feed cassette. The stepped portion formed according to the length of the paper in the feeding direction has a step-like shape K in the feeding direction, and becomes shallower in the direction of force opposite to the feeding direction (!f
In addition, the steps in the direction of the plane angle in the feeding direction are shallower at the ends than at the center of the bottom surface, so the following It has the following advantages: 0 TI) The number of mechanical parts can be reduced.

(2) Cost reduction becomes possible.

(3) Assembly man-hours can be reduced.

(4) Converting copy paper (9) is easy.

[Brief explanation of the drawing]

FIG. A 2 d A small side view of a conventional paper guide slide force type paper feed cassette, FIG. 6 shows an embodiment of the present invention, and FIG. FIG. 5 is a 51' cross-sectional view of another embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along the Y--Y' line in FIG. 6.7.8-Paper, 6a, 6b+ 6c, 7a. 7b, 7c, 8a, 8b, Flc/stepped section, 21...Ki
agent (cassette agent, patent attorney Michihito Hiragi, and one other person) 5 Figure 16 Figure 1

Claims (1)

[Scope of Claims] () Consisting of a box body whose bottom surface is 11 #Y rectangular, the interior thereof is a paper feeding power center for storing paper, and the feeding power direction from the front end thereof is and (f) at least one stepped portion cooperating with the front end of the sheet to position the sheet in the feeding direction. The paper width dimension button is provided with at least one pair of stepped portions provided at approximately equal intervals and parallel to the paper feeding direction, and is used to determine the position of the paper in the paper feeding direction. at least one stepped portion, which is configured in a 19h stepped shape so that the depth becomes shallower toward the rear from the front end,
Pair of stepped portions 1d in the paper feeding direction and the angle direction: A paper feeding cassette characterized in that it is configured in a step-like manner so that the edge portions of the IA surface are shallower than the center portion.