JPS622697Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stacker used in optical character reading devices and the like.

Normally, this type of stacker is equipped with air bleed rods or air bleed holes at multiple locations so that the forms inserted into the stacker can be stacked smoothly on the receiving plate. Since the air bleed rod or air bleed hole was simply provided vertically, the top end of the form inserted into the stacker would get caught in the air bleed rod or air bleed hole, causing problems such as jams. There was a simple drawback.

Therefore, the present invention is parallel to the input direction of the form.
A first reference plate having a plate surface that intersects with the form surface, a second reference plate having a plate surface perpendicular to the input direction, and an abutment plate against which one end of the input form is abutted. and a receiving plate for receiving inputted forms, and a plurality of air release rods or air vents are provided on the first and second reference plates along the stacking direction of the forms. In the stacker provided with a vent hole, the air vent rod or the air vent hole is provided in such a way that it does not intersect with the locus of the upper end of the form that is fed into the form storage chamber through the input port, and the first reference plate is provided with: A stacker that eliminates the above-mentioned drawbacks is constructed by installing an air bleed rod or air bleed hole closest to the input direction, between the receiving plate and the storage limit accumulation amount, and closer to the input port than the center of gravity of the smallest form. The purpose is to provide

Hereinafter, the present invention will be specifically explained based on an embodiment shown in the drawings.

As shown in FIGS. 1 to 3, the stacker 1 has a form storage chamber 2 in which a form input port 2a is formed, and input rollers 3 and 3' are rotatably driven near the input port 2a. It is set in. The storage chamber 2 has reference plates 5 and 6 that serve as a reference when storing forms.
The reference plates 5 and 6 are provided perpendicular to the form input direction and the direction perpendicular thereto, and the reference plate 5 is further provided with a form sensor 7.
As shown in FIG. 3, in the lower part of the storage chamber 2, a receiving plate 9 is installed obliquely with respect to the reference plate 5.
is provided so as to be movable in the directions of arrows A and B in FIG. There are four air release rods 11 on the reference plate 5.
a, 11b, 11c, and 11d are provided diagonally in parallel, and the reference plate 6 has four air release rods 12a, 12b, 12c, and 12d provided in diagonally in parallel. ing.

Since the present invention has the above configuration, when the form 13 is stored in the stacker 1, the form 13 is stored in the stacker 1.
passes between the input rollers 3 and 3' and enters the form storage chamber 2.
It is thrown into the storage chamber 2 from the slot 2a. First, to describe the case where the length of the form 13 to be stored is the minimum in the directions of arrows A and B in FIG. The storage is started with the distance L from the surface of the air release rods 12a, . . . 12d corresponding to the length of the form 13. The first form 13 inserted into the storage room 2 is
As shown by the solid line in the figure, the lower end 13a of the form 13 in the figure
With the upper end 13b of the form hitting the intersection of the receiving plate 9 and the plate 10, the upper end 13b of the form falls onto the receiving plate 9 in an arc centered on the lower end 13a. At this time, the air trapped between the form 13 and the receiving plate 9 is removed by the air bleed rod 11a between the form 13 and the reference plates 5 and 6.
Since the form 13 passes through the gap 15 formed by 11d, 12a, . The device is smoothly stored onto the receiving plate 9 without any delay in falling onto the receiving plate 9. In addition, if the form 13 falls in an arc, the receiving plate 9
is formed obliquely to the reference plate 5, so
The forms fall onto the receiving plate 9 while being guided while contacting the air release rods 11a, 11b, etc., and are stacked on the receiving plate 9 along the reference plate 5. The air release rod 11a closest to the input port 2a on the plate 5 is located at the top edge 13b of the form.
Since the form 13 is located at a position that does not intersect with the passage locus 16 through which the air vent rod 11 passes,
Even if the form falls along lines a and 11b, the upper end 13b of the form will not be caught by the air release rod 11a. Regarding the air release rods 11b, 11c, and 11d,
It is located on the right side of the air bleed rod 11a in the figure, and does not intersect with the passage locus 16, so it
b never comes into contact. In this way, the forms 13 are stacked one after another on the receiving plate 9, but as the forms 13 are stored on the receiving plate 9, the locus 16 of the upper end 13b of the form inputted from the input port 2a moves toward the input port 2a side. As we continue to do so, the receiving plate 1
If the air bleed rod 11a is set in accordance with the trajectory of the form 13 that is first inserted onto the sheet 3, the upper end 13b of the form that is inserted later will not get caught. Furthermore, even if the length of the form 13 in the A and B directions becomes longer, the upper end 13b of the form draws a trajectory 16 with the lower end 13a as the center, so the trajectory 16 is the minimum length of the form 13.
Because all of them are closer to the input port 2a than in the case of
Air bleed rod 1 set for minimum form 13
A longer form 13 will not be caught in 1a. In this way, when the thickness of the form on the receiving plate 9 reaches the storage limit thickness T, the sensor 7 detects the form 13 and causes the stacker 1 to stop further operation of inserting forms. At this time, the air release rod 11a
is provided between the receiving plate 9 and the storage limit thickness T, and closer to the input port 2a than the center of gravity G of all the forms 13 on the receiving plate 9, so that the forms 13 are placed along the air release rod 11a. As shown by the imaginary line in FIG.
A rotational force is generated in the direction of arrow C around point a, so that the objects do not stack up in a diagonally skewed manner.
Note that if the arrangement of the rod 11a with respect to the center of gravity G is done only for the smallest form 13, the rod 11a will always be closer to the input port 2a with respect to the center of gravity G for other longer forms 13, so skew will not occur. It will never occur. In addition, the air release rod 11a,...
... Regarding the arrangement of 11d, at least the rod 11
If a is arranged under the above conditions, the other rod 1
For 1b, 11c, and 11d, the top edge of the form 13b
It goes without saying that problems such as getting caught or skewing do not occur, so it is only necessary to install it at an appropriate inclination.

In addition, the air release rod 12a on the reference plate 6 side,...
...The exact same thing can be said about 12d,
For the bars 12a, 12d, form 13
As shown in FIG. 3, the sheets are stacked in a uniform manner on the reference plate 5 side due to the inclination of the receiving plate 9. Since the length changes depending on the length in the E direction, the rods 12a, .
12d must be set.

In addition, in the above-mentioned embodiment, the air release rods 11a,...
...11d, 12a, ...12d were provided in a straight line, but the rods 11a...11
d, 12a...12d are not limited to straight lines. Of course, it may be formed in a curved shape such as a circular arc. Furthermore, the same effect can be obtained by applying an air bleed hole to the reference plate itself in place of the above-mentioned air bleed rod.

As explained above, according to the present invention, the air release rods 11a, 11d, 1 of the reference plates 5, 6
Upper end 13 of the form into which 2a,...12d are inserted
Since the upper ends 13b and 13b' of the form do not intersect with the loci 16 and 16' of the rods 11 and 13b,
a, . . . 11d, 12a . . . 12d will not cause trouble such as jamming.
Also, the rod 11a is moved from the receiving plate 9 to the storage limit thickness T.
Since the center of gravity of the smallest form 13 is located closer to the input port 2a than the center of gravity G of the smallest form 13, it is possible to prevent the form 13 from being stacked in a skewed manner on the receiving plate 9.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the stacker according to the present invention, FIG. 2 is an enlarged plan view of the vicinity of the reference plate of the stacker shown in FIG. 1, and FIG. 3 is a view taken along the arrow in FIG. 1... Statska, 2... Form storage room, 2a...
Input port, 5, 6...Reference plate, 9...Receiving plate, 11
a, 11b, 11c, 11d, 12a, 12b,
12c, 12d... Air bleed rod, 13... Ledger, 13b, 13b'... Upper end, 16, 16'...
Trajectory, G... Center of gravity position, T... Storage limit thickness.

Claims (1)

[Scope of utility model registration request] A first reference plate having a plate surface that is parallel to the input direction of the form and intersecting with the form surface, a second reference plate having a plate surface perpendicular to the input direction, It has a form storage chamber provided with an abutment plate against which one end is abutted, and a receiving plate for receiving the input forms, and the form is arranged so as to be aligned with the first and second reference plates in the stacking direction of the forms. In a stacker having a plurality of air bleed rods or air bleed holes, the air bleed rods or air bleed holes
It is installed in a form that does not intersect the locus of the upper end of the form that is fed into the form storage chamber through the inlet, and the air bleed rod or air bleed hole closest to the feeding direction of the first reference plate is connected to the storage limit from the receiving plate. A stacker configured to be located closer to the input port than the center of gravity of the smallest form.