JPS58139959A - Paper leaf conveyor device - Google Patents

Abstract

PURPOSE:To restrain the damage of each member by separating a stripping member to strip off paper leaves from a conveying member from the surface of the conveying member when the stripping member is moved to be in touch with the conveying member together with a supporting member to support the stripping member. CONSTITUTION:In a duplicating machine, a figure copied on a copying paper is thermally fixed as the paper passes between a fixing roller 12 and a pressing roller 13, and the copying paper wound up on the side of the fixing roller 12 is stripped off by a stripping ratchet 21 and then delivered by delivery rollers 24 and 25. At this stage, when the passage between delivery rollers 24 and 25 is choked with the copying paper, an operation knob 19 is pushed, and a delivery frame 15 is released to remove the choking of the paper. Then, when the delivery frame 15 is closed, at first, a lock part 20 of a catching lever 17 is brought in touch with an end rim of a frame 11, and the lever 17 is rotated clockwise around a pin 18. Thereby, the stripping ratchet 21 is turned downward against a spring 23 for preventing the dashing of the top of the ratchet 21 to the roller 12.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper sheet conveying device installed in, for example, a copying machine.

In a copying machine, for example, as shown in FIGS. 1 and 2, a paper ejection frame 2 is attached to a fixing device frame 1 so as to be able to be opened and closed. The fuser frame 1ri is equipped with a constant current roller 3 and a pressure roller 4t that rolls into contact with the fixing roller 3, and the image-formed copy paper conveyed by the conveyor belt 5 is transferred to each of the fixing and pressure rollers. By passing the image between 3 and 4, the image is made to look hot. - The lower end of the paper ejection frame 2ii is rotatably supported by a support @6, and an engagement lever 8 that engages and disengages with the engagement pin 7 of the fuser frame 1 is provided on the upper side. There is. Furthermore, the paper ejection frame 2 is provided with paper ejection rollers 9, 9 that roll into contact with each other, and is further provided with a separation claw 10 that presses one tip of the roller against the -F period fixing roller 30. The separating claw 10 is used to separate the copy paper 1I mentioned above.
When the fusing toner is welded to the fixing roller 23 and the copy paper is wound around the fixing roller 3 during fixing of the kl image, the copy paper is forcibly separated from the fixing roller 3.

Also, after the copy paper has passed the fixing roller 3, it may become jammed on the conveyance path due to a conveyance failure. Open and remove the jammed paper and dispose of it.
After processing, the writing/discharging frame 9 is closed and the engaging lever 8 is locked to the locking pin 7.

However, in the conventional art, when the paper ejection frame 2 is closed and its engagement lever 8 is engaged with the lock pin 2, the tip of the separation claw 10 strongly contacts the front surface of the fixing roller S.

The surface of the fixing row 23 is coated with a glass fiber-reinforced tetrafluoroethylene resin, and if the sharp tip of the separation claw 1θ comes into contact with it, it will be easily scratched and its life will be shortened. Furthermore, if the tip of the separation claw 10 is severely damaged and becomes dull, copy sheets cannot be separated reliably, and the number of jams increases dramatically.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to move the peeling member to the surface (3) of the conveyance member when the support member is moved and the peeling member is brought into contact with the conveyance member. It is an object of the present invention to provide a paper sheet conveying device in which the tip of the peeling member is pressed so as not to come into contact with the surface of the conveying member by releasing the peeling member from the peeling member.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 3 to 5. In the figure, reference numeral 11 is a fuser frame, and inside this fuser frame 1 is a fuser row 212 that constitutes a conveying member.
and a pressure roller 13 that is in rolling contact with this fixing roller 12
is installed. Further, a retaining hole 14 is formed in the upper end of the fixing device frame 1. Further, 15 is a paper ejection frame as a support member attached to the above-mentioned applicator frame 1ztic opening/closing width. The lower end of this tillage frame ISRR is a support bin 16 as a mounting member.
A locking lever 17 as a spacing member is rotatably supported by a support pin 18 on the upper side. Further, the locking lever 17 is integrally provided with an operation nog 19, and furthermore, the tip end 1j of the locking lever 17 is formed with an opening and a hole 20 forming a holding portion. Lock portion 20d of this locking lever 17
From step 9, the locking hole 14 of the fuser frame 11 is
It is now possible to be disconnected from the system. Further, on the upper sheet discharge frame 15, a separation claw 2 serving as a peeling member is attached to the support bin 22 so as to be positioned below 77s of the above-mentioned locking lever 17 so as to be able to perform a small movement opening on the support bin 22. This separation claw 2 is biased to rotate counterclockwise by a spring 23 as a biasing member. Furthermore, a pair of paper ejection rollers 24 and 26 are disposed on the paper ejection frame 16 and roll into contact with a roller constituting a second conveying member.

Thus, the sheet of paper on which the III image has been formed passes between the fixing roller 12 and the pressure roller 13, so that the II&I image is thermally fixed.

During this fixing, the toner is melted and the fixing roller 12
If the copy paper is welded to the surface of the
The paper is forcibly separated and passed through the fixing roller 212, and then discharged by the #P paper rollers 24 and 25. By the way, when the copy paper is discharged, the copy paper is
4.25 may get clogged and jam. At this time,
Press the operating knob 19 to rotate the locking lever 17 clockwise to disengage the locking part 20 from the retaining hole 14 of the fixing number frame 1 to open the paper ejection frame 15 and remove the paper jam. Remove copy paper. When the paper ejection frame 15 is opened, the separation hole 21 is in the second position, that is, the straightening roller 12
The position K $ is moved away from. After removal in this way, the discharge 7 frame 15 is closed again. At this time, as shown in FIG. 4, the locking portion 20 of the retaining lever 17 first comes into contact with the bolt edge of the measuring device frame 11, and then, as shown in FIG. The retaining lever 17 rotates clockwise in contact with the edge of the frame 1, thereby pressing the arm tB21h of the separation claw 21 and rotating the separation claw 21 against the biasing force of the spring 23. . As a result, the tip of the separating claw 21 is released from the surface of the fixing roller l20.

When the discharging frame 15 is further closed from this state, the lock portion 20 of the retaining lever 17 is engaged with the retaining hole 14 as shown in FIG.
The fixing roller 212 is urged by the urging force of the spring 23 and moved to the first position, that is, the position where the tip thereof is brought into contact with the surface of the fixing roller 212.

As described above, when closing the paper ejection frame 15, the tip of the separation claw 2 is released from the direction of the fixing roller 12, so that the tip of the separation claw 2 is Therefore, the fixing roller 12 does not come into strong contact with the fixing roller 12 in the fie direction, and the surface of the fixing roller 12 is not damaged.

Note that the present invention is not limited to the above-mentioned examples,
As shown in FIG. 6, one end of the spring spring 28, which serves as a connecting vJs material that biases the separation claw 26, is engaged with the tip of the retaining lever 17, and the engaging lever 17 is moved as shown by the arrow. When rotated to F, the biasing force of the biasing spring 28 may be weakened to cause the tip of the separating claw 26 to escape from the direction of the gradual roller 12. 9. As shown in Fig. 7, the separation claw 26
A cylinder/base type retrieval device 27 may be attached to the cylindrical member 27, and pressure may be applied to soften the false impact when the separating claw 26 enters in the direction of the arrow. Note that the loose 4k device 22 is not limited to the Gun/Main type, but may be any element that provides some kind of damping characteristic to the rotation direction of the shaft 26 & spider of the separation claw 26. Furthermore, the shock absorber 27 is attached to the fulcrum 18. It may also be installed to slow down the rotation.

As explained above, the present invention supports a peeling member that includes a conveyance member that conveys the A-group and a peeling member that comes into contact with a part of this conveyance member and peels off the waste from the conveyance member. a support member; a mounting member to which the support member is movably attached between a first position where the peeling member is brought into contact with the conveying member and a second position where the peeling member is separated from the conveying member; a biasing member that biases the peeling member toward the conveyance member; and a biasing force applied to the peeling member by the biasing member when the support member is moved between a first position and a second position. Since the separating member is moved southward to separate the separating member from the conveying member against the force, the peeling member does not come into strong contact with the conveying member when the supporting member is moved to the first position. Therefore, the conveying member is not damaged, the life of the boat is extended, and the paper sheets can be reliably peeled off without any damage to the peeling member, thereby preventing the occurrence of jams.

In addition, the holding member that holds the supporting member in the first position and the separating member are used to release the holding member in conjunction with the release of the holding state of the Ns retaining member. Since the interlocking member for separating the members is provided, the peeling member can be separated by simply releasing the holding member, resulting in excellent operability.

In addition, since the support member is provided with a second conveyance member for further conveying the paper sheets conveyed by the first conveyance member, if the paper sheets jam in the second conveyance member, the support member By moving the paper from the first position to the second position, jammed paper sheets can be easily removed, which is convenient.

[Brief explanation of drawings]

Figure 1 is a side cross-sectional view l110 showing a conventional paper ejecting device, and Figure 2 μ is the same.
The Wfr side view, @Figures 3 to 5 show one embodiment of the present invention. Figure 3 is a side view showing the paper ejecting device, and Figs. 4 and 5 show the paper ejecting device being closed. Figure 6 is a side sectional view showing another embodiment of the mIa device $1, and Figure wJ7 is a side sectional view showing the second other embodiment of the paper ejecting device.
1M! It is an IT (3) diagram. 12.13... Conveyance member (fixing and pressure roller),
21... Peeling member (separation claw), 15... Supporting member (
paper ejection frame), 16... mounting member (support bin), 2
3... Biasing member (spring), 17... Separation member (locking lever). Patent attorney Suzue Takehiko j II Figure 3 Figure 4

Claims (1)

[Scope of Claims] (1) A conveyance member that conveys paper products, a peeling member that contacts a part of this conveyance member and peels paper products from the conveyance member, and a support that supports this peeled Mas material. a mounting member for movably mounting the support member between a first position for bringing the peeling member into contact with the Iliil mailing member and a second position for separating the peeling member from the conveying member; , a biasing member that biases the peeling member toward the conveying member VC; and a biasing member that biases the peeling member when the support member moves between the first position and the second position. A *s'ts* feeding device, characterized in that it supports a separating member that resists force and separates from the conveying member. (2) The paper industry conveyance device according to claim 1, wherein the mounting member pivotally supports the support member. (3) The paper sheet conveying device according to claim 1, wherein the conveying member is a pair of rollers pressed together. (4) A conveying member that conveys paper sheets, a peeling member that comes into contact with a part of this conveying member and peels paper products from the conveying member, a support member that supports this peeling member, and a support member that supports this peeling member. , a first position where the peeling member is brought into contact with the conveying member, and a second position where the peeling member is separated from the conveying member.
a mounting member that is movably attached to the support member; a biasing member that biases the peeling member toward the conveyance member; and a mounting member that is movable between the first and second positions of the support member. a separating member that separates the peeling member from the conveying member against the urging force of the urging member; a holding member that holds the supporting member in a first position; and a holding member that releases the holding state of the holding member. An interlocking member that causes the separating member to separate the peeling member in conjunction with the operation. (5) The holding member is movably supported, and the peeling member is swingably supported by the support member, and movement of the holding member causes the peeling member to swing via the interlocking member. Paper listed in scope 4! 6) A first conveyance member that conveys paper 'jI11 type, a peeling member that contacts a part of this first conveyance member and peels paper industry@ from the WJl conveyance member, and this A support member that supports a peeling member, and a #&l position that brings the peeling member into contact with the first conveying member and a second position that separates the peeling member from the first conveying member. a mounting member for movably attaching l'Mj to the first position; a biasing member for biasing the peeling part hammer toward the second conveying member; a separating member that separates the peeling member from the first conveying member against the urging force of the urging member when moving between the two positions; and a paper sheet conveyed by the first conveying member. A paper sheet conveying device characterized by having a second conveying member provided on the support S@ for further conveying the sheets. (7) The paper sheet conveying device according to claim 6, wherein the second conveying member includes a pair of rollers that roll into contact with each other, and at least one of the rollers is supported by the support member.