JPS63235254A - Paper sheet retaining mechanism for machinery using paper sheet - Google Patents

Abstract

PURPOSE:To prevent paper sheets from being skewed and to improve work efficiency by employing a paper sheet pressing piece to be attached to a paper sheet receiver and by pressing the paper sheets stacked on the paper sheet receiver by means of the paper sheet pressing piece when taking out the paper sheet. CONSTITUTION:Before taking paper sheets 14 out of a discharged paper storage section 12, first a bracket 27 is attached to a hook portion 17a of a paper sheet receiver 13 and a ratchet arm 29 is attached to a window 17b of the paper receiver 13. Next, a square bar 33 is inserted into a communication groove 31b of the bracket 27 so that the bar is engaged with a square groove 31a corresponding to the height h of paper sheets, the front end of a pressing plate 35 is made to engage with a claw 39a of the ratchet arm 29 to press the top of the paper sheets 14 with a broad portion of the pressing plate 35, and the paper sheets 14 together with the paper sheet receiver 13 are taken out by holding a handle 19. Removing the pressing plate 35, bracket 27 and ratchet arm 29, and further removing a paper sheet pressing piece 26 from the paper sheet receiver 13, the paper sheets 14 are removed. In this way, there is no possibility of the paper sheets of being skewed even if the quantity of the paper sheets is large. As a result, the paper sheets can be taken out with ease of mind and the work efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention can be applied to paper-using equipment such as printers, plotters, copiers, printing machines, etc. that eject large quantities of paper.

Specifically, among such paper-using devices, the present invention is particularly applicable to devices in which discharged sheets are sequentially stacked on top of a paper tray into a discharged paper storage section, and the sheets can be taken out together with the paper tray.

Conventionally, in this type of paper-using device, paper that is sequentially ejected from the main body of the device into the ejected paper storage section after printing or copying is received by a paper tray provided in the ejected paper storage section. I stopped and stacked the paper trays one after another on top. When the paper is taken out of the paper ejection storage section, the stacked paper is taken out together with the paper tray. However, when the amount of stacked paper increases, the stack may collapse if the stacked paper is not stacked properly or if the paper is not carried out properly. Therefore, before the amount of paper increases, you have to take it out in several batches.

There was a problem with inefficiency.

Therefore, the object of the present invention is to solve such problems in the above-mentioned paper-using equipment, so that even if the paper is not stacked properly or the paper is not taken out properly, it can be removed from the paper eject storage section. The purpose of this invention is to prevent the stack of paper from collapsing when taking out the paper.

! In order to achieve this, the paper holding mechanism according to the present invention stacks the paper sheets sequentially discharged into the paper discharge storage section on top of the paper tray.
The paper-using device is characterized in that the stacked paper can be taken out together with the paper tray, and a paper presser attached to the paper tray is provided, and the paper tray presses the paper stacked on top of the paper tray with the paper presser when taking out the paper. shall be.

An embodiment of the present invention will be described below with reference to one drawing.

The illustrated embodiments are all cases in which the present invention is applied to a printer, and FIG. It will be placed on table (11) 42. A discharge paper storage section (12) is adjacent to the main body table (11) and connected to the printer main body (IO). By the way, there is a paper tray (1) in the discharge paper storage section (12).
3) The paper (14) that is sequentially discharged from the printer main body (lO) after printing is sent by a paper discharge roller (15) and stacked on the paper receiver (13). - Then, the paper receiver (13) is configured to be moved up and down as appropriate in the discharged paper storage section (12) by known means, as indicated by the arrow in the figure, according to the stacking height (h) of the paper (14). .

FIG. 13 shows the other side of the overall system configuration of the printer. In this example, a discharge paper storage section (12) and a large quantity paper feed section (16) are arranged on the left and right sides of the figure with the printer main body (lO) in between, and are positioned and connected to each other. and.

Based on a signal from the control section, a paper feed roller (not shown) of the bulk paper feed section (16) is rotated to feed the paper (14) to the printer main body (10). Then, the printer main body (IO) prints on the paper (14), and the paper (14) on which printing has been completed is discharged to the discharge paper storage section (12).

In the discharged paper storage section (12), the discharged paper (14) is sent onto a paper receiver (13) by a paper discharge roller (15) and stacked on the paper receiver (13). In this example as well, the paper receiver (13) is provided with a mechanism (not shown) according to the stacking height (h) of the paper (14) so that the falling height of the paper (14) from the paper ejection roller (15) is constant. The structure is such that it moves up and down.

FIG. 14 shows a schematic configuration of the inside of the discharged paper storage section (12) shown in FIGS. 12 and 13 described above. As shown in the figure, the paper receiver (13) is made up of a flat part (17) and a side edge part (18) by bending both sides of a plate member downward. 19) Attach. And such a paper tray (13)! , two elevator shafts (20) at each end as shown in the figure.
(21) Place it on top and place it in the discharged paper storage section (12). One of the elevator shafts (20) and (21) is movable up and down along the long grooves (22a) and (23a), and the other one is movable up and down along the long grooves (22b) and (23b) by a mechanism not shown. Those long grooves are the frame (24)
The side plates (22) and (23) are vertically provided at both ends of the side plates (22) and (23) facing each other.

FIGS. 1 and 2 show such a discharge paper storage section (12
) shows the paper holding mechanism provided inside. The illustrated paper holding mechanism is one embodiment of the present invention, and in this embodiment, the paper holding mechanism (
A hook part (17a) is attached to one end side of the flat part (17) of 13).
is provided, and an extraction window (17b) is opened on the other end side. The hook portion (17a) is formed by cutting out and bending a part of the flat portion (17), protruding upward, and extending toward the other end. On the other hand, the punched window (17b) is formed into a rectangular shape by punching out the plane part (17). Then, the paper presser (26) is attached to the hook portion (17a) and the cutout window (17b) to be detachable.

The paper presser (26) includes a bracket (27), a paper presser (28), and a ratchet arm (29).

The bracket (27) is U-shaped and consists of a bottom part (30) and vertical parts (31) extending upward from both ends thereof. The bottom (30) has a notch (30a) on one side of the center. The vertical portion (31) is provided with a plurality of square grooves (31a) vertically arranged at a constant pitch, and a vertically long communication groove (31b) connecting the square grooves (31a) is formed. Therefore, the hook portion (1
7a) and place the bracket (27) into the paper tray (13).
), and make sure that it does not fall over, although there may be some wobble.

The paper presser (28) consists of a square bar (33) with a rectangular cross section and a presser plate (33) whose base end is fixed to the square bar (33) with a screw (34).
35). Insert both ends of the square rod (33) into the communication groove (31b) of the bracket (31), move within the communication groove (31b), and insert the square rod (31a) into the square groove (31a) as appropriate according to the paper height (h). , and the hook is passed between the opposing square grooves (31a). Then, fit the rings (36) into both ends.

Prevents movement in the axial direction and prevents removal. Then.

The square rod (33) cannot rotate within the square groove (31a). On the other hand, the presser plate (35) is made of an elastic material, extends in the length direction of the paper receiver (13), is arched and has an upwardly bent tip, and is provided with a grip portion (35a) at the tip.

The ratchet arm (29) has a slightly thick rectangular base (
The base (38) consists of a kerf (38) and a band (39) extending at right angles from the base (38).
8a). The IF section (39) is made of an elastic material and is slightly tapered, and a plurality of claws (39a) are provided on its inner surface in the length direction. Then, insert the periphery of the above-mentioned cutout window (17b) into the cut groove (38a) of the base (38), and
Attach the ratchet arm (29) to the above-mentioned paper receiver (13) with the side facing upward.

When taking out the paper (14) from the discharge paper storage section (12), first press the hook part (17a) of the paper receiver (13).
Attach the bracket (27) to the bracket (27), and attach the ratchet arm (29) to the opening (17b).

Next, attach the bracket (2) attached to the paper tray (13).
Insert the square rod (33) into the communication groove (31b) of 7) and set the appropriate corner according to the paper height h). engages fl (31a). Then, hold the knob (35a) and
5), extend the presser plate (35) straight, and attach the tip of the presser plate (35) to the ratchet arm (29).
) is engaged with the claw (39a). However, that presser plate (
35) in the abdomen.

Press the top of the paper (14) stacked on the paper tray (13). After that, hold the handle (19) and remove the paper (14).
) with the paper tray (13), and then remove the presser plate (
35) to remove it from the claw (39a), remove the bracket (27) and ratchet arm (29), and remove the paper presser (26) from the paper receiver (13)6. 14) is removed, the paper receiver (13) is returned to the ejected paper storage section (12) again, thereby completing the removal of the paper (14) on the paper receiver (13).

3 to 5 show a paper holding mechanism which is another embodiment of the present invention. In this embodiment, the paper receiver (13
) are formed with hook portions (17c) at both ends of the flat portion (17). The hooking portion (17c) is formed by raising both ends upward and then immediately bending them outward. Both ends of the paper presser (26) are hooked onto these hooking portions (17c), respectively. Paper holder (
26) is constructed by gradually widening both ends of the band (41), which is a band-shaped elastic member, outward, and providing a slot at the open end to engage with the hook part (17c), and attaching the shaft (42). . Therefore, when taking out the paper (14), the hook (17c) is inserted into the slot, and the shaft (42) is hooked onto the hook (17c).

Attach both ends of the paper presser (26) to the paper receiver (13). Then, the elasticity of the band (41) allows the paper (14) to
, and similarly remove the handle (19) from the ejected paper storage section (12).
The paper (14) can be taken out along with the paper tray (13) by holding the paper. It should be noted that the shapes of the hooking part (17c) and the band (41) and the structure for hooking and stopping the paper presser (26) on the hooking part (17c) can of course be changed as appropriate. And thereby, in this example.

This has the advantage of being able to hold down the paper when taking out the paper at a low cost.

FIG. 6 and FIG. 7 show a paper holding mechanism which is still another embodiment of the present invention. In this embodiment, appropriate paper holding devices are installed at both ends of the flat part (17) of the paper receiver (13). Form a mounting part. Then, the paper presser (26) is attached to these attachment parts. In other words, the paper tray (13)
Attach the plate (44) to the plate (44) by appropriate means. A pulley (45) is rotatably provided on each plate (44),
Wires (46) are hung on these pulleys (45).

The wire (46) has its outer end attached to a handle (47);
Attach the inner ends to the holding plates (48), respectively. Toride (4
7), the hook is passed between the two plates (44) across the paper (14), and the presser plate (48) is positioned between the two plates (44). With this, when taking out the paper (14), the paper holding tool (26) is placed on the paper receiver (13).
) and lift it up by the handle (47). Then, the press plate (48) presses the paper (14) due to the weight of the paper tray (13) and the paper (14), and in the same way, the paper (14) is removed from the paper ejection storage section (12) along with the paper tray (13). It can be taken out. In this embodiment, since the paper pushing force changes approximately in proportion to when the paper (I4) is stacked, it is possible to effectively prevent the paper (14) from collapsing.

FIG. 8 and FIG. 9 show a paper holding mechanism which is still another embodiment of the present invention. A long groove (18a) is provided, and a notch (18b) is formed at one end of the long groove (18a). Further, studs (50) are erected near the other ends. One end of a tension spring (51) is hung on each of the studs (50), and the other end of each tension spring (51) is attached to each of the presser rods (50).
2) Hang it on the grooves on both ends. The presser bar (52) is normally held in a notch (18b) by the urging force of a tension spring (51), as shown in FIG. 8, and its both ends are also connected to two arms. It is attached to one end of the arm (53), and a hook is passed between the arms (53). Arm (5
3) both have both side edges (18) and the above-mentioned tension spring (
51), and the other ends are also attached to both ends of one shaft (54), so that the shaft (54) is also passed between the other ends. The shaft (54) has the long groove (18a) described above.
It penetrates through and is prevented from being pulled out by the arm (53), making it freely movable within those long grooves (18a). In this way, the paper presser (26) is attached to the paper receiver (13). Therefore, when taking out the paper (14), the paper presser (26) is used to press the paper (14).

That is, from the state shown in FIG. 8, the presser bar (52) is pulled against the tension spring (51) to remove it from the notch (18b), and the presser bar (52) is moved upward and the shaft (54) is removed. )
is brought to one end side of the long groove (18a). After that, when the presser foot (52) is placed on the paper (14), the tension spring (
The urging force of the paper (14) is applied to the paper (14) via the presser foot (52).
) and can hold down the paper (14) as shown in FIG. Due to this.

Similarly, the paper (14) can be taken out along with the paper receiver (13) from the discharge paper storage section (12) by holding the handle (19).

Then, the presser bar (52) is fitted into the notch (18b) again and held, and after removing the paper (14) from above the paper receiver (13), the paper receiver (13) is returned to the discharge paper storage area. (
12) It is something that can be returned to the inside.

FIGS. 1O and 11 show a paper holding mechanism which is still another embodiment of the present invention. In this example, the eighth
The long groove (18a) of the embodiment shown in FIGS.
In addition to the stud (50), there is a stud (5) in the center of the stud (18).
6). In normal times, the presser foot (
52) is fitted into the notch (18b) of the side edge (18) and held. However, when taking out the paper (14),
Pull the presser bar (52) against the tension spring (51) to remove it from its notch (18b), hook the middle of the tension spring (51) on the stud (56) mentioned above, and remove the presser bar (52) from the notch (18b).
52) is moved upward and placed on the paper (14) so that the paper (14) is pressed by the biasing force of the tension spring (51). In this way, use the paper holder (26) to hold the paper (
14), take out the paper (14) along with the paper tray (13) from the discharge paper storage section (12) by holding the handle (19) in the same way, and fit the presser bar (52) into the notch (18b) again to hold it. and remove the paper (14), then open the paper tray (
13) is returned to the discharge paper storage section (12) again.

According to the embodiments shown in FIGS. 8 to 11, since the paper presser (26) remains attached to the paper receiver (13), the paper (14) can be held with a one-touch operation, and the paper presser (26) remains attached to the paper receiver (13). There is no need to worry about losing the tool (26).

In addition, in order to take out the sheets (14) stacked on the sheet tray (13) without causing the stack to collapse, a structure as shown in FIGS. 15 to 17, for example, is used in addition to the above-mentioned embodiment. You can also do that. As shown in Figure 15, the ejected paper storage section (12)
A mechanism section (58) that sequentially stacks the sheets (14) ejected from 0) on the paper tray (13), and a cart section (59) that separates from the mechanism section (58) and conveys the stacked sheets (14) as they are. ). As shown in FIG. 15, the first mechanism section (58) has a paper ejection inlet (58a) for paper (14) sent from the printer main body (10), and the cart section (59) has a mechanism therefor. There is a handle part (s9a) when pulling out from the cart part (58).
As shown in FIG. 16, the bottom surface of 59) has casters (60) at each of the four corners, and height-adjustable fixing screw feet (61). Furthermore, as shown in FIG.
4) is provided with a side plate (62) to prevent the cargo from collapsing. Although not shown, a paper holding device or the like may be provided, and when taking out the paper (14), fixing screw feet (
61) to shorten the leg length, make the cart part (59) movable on the casters (60), pull out the cart part (59) from the mechanism part (58) by holding the handle part (59a),
The paper (14) can be freely moved together with its cart part (59) to any desired position.

In other words, if the stack amount is 2,500 A3 sheets, it will be about 22 sheets when stacked all at once, and it will take a person -
It is too heavy for a person to easily carry. However, as described above, if the cart section (59) can be moved together, the ejected paper (14) can be easily transported to a desired position.

Effects Therefore, according to the present invention, since the paper is held down when taking out the paper, there is no fear of the stack collapsing even if there is a large amount of paper, the paper can be taken out with peace of mind, and work efficiency can be improved. The subsequent bookbinding work etc. can be made easier and the burden on the person performing the work can be greatly reduced.

[Brief explanation of the drawing]

Each of the drawings shows a case where the paper holding mechanism according to the present invention is applied to a printer. Figures 1 and 2 are
FIG. 7 is a perspective view and a front view of a paper receiver to which a paper presser is attached, showing an embodiment. Figures 3 to 5 show the second embodiment, Figure 3 is a perspective view of a paper tray with stacked papers, and Figures 4 and 5 are a front view and a perspective view of the paper holding device attached to it. It is a diagram. 6 and 7 show the third embodiment, FIG. 6 is a front view of the paper presser, and FIG. 7 is a front view of the paper receiver to which the paper presser is attached. FIGS. 8 and 9 show a fourth embodiment, and are a perspective view and a front view of a paper receiver to which a paper presser is attached. FIGS. 10 and 11 show a fifth embodiment, which is a slightly modified version of the fourth embodiment, and are a perspective view and a front view of a paper tray to which a paper presser is attached. FIG. 12 is an explanatory diagram showing an example of the overall system configuration of the printer, FIG. 13 is an explanatory diagram showing the other side, and FIG. 14 is a schematic diagram of the internal configuration of the ejected paper storage section shown in FIGS. 12 and 13. It is a diagram. 15 to 17 show the other side of the discharge paper storage section, FIG. 15 is an external perspective view, FIG. 16 is a front view, and FIG. 17 is a front view showing the schematic structure of the cart section. .

Claims (1)

[Claims] In a paper-using device that sequentially stacks sheets of paper that are sequentially ejected into a paper ejection storage section on a paper tray and that makes it possible to take out the stacked sheets together with the paper tray, a paper presser that is attached to the paper tray is provided, and when the paper is taken out, A paper holding mechanism for a paper using device, which holds down the paper stacked on the paper tray with a paper holding tool.