JPH07210044A - Paper powder removing device - Google Patents

Abstract

PURPOSE:To provide a paper powder removing device having excellent maintainability. CONSTITUTION:A long-length substrate 101 provided with a long-length paper powder removing member 102 has a first hole on one end side and a second hole on the other end side; and a supporting board 121 supporting the substrate 101 has a projecting piece capable of being inserted to the first hole on one end side and also has a spring piece 141 pressuring the substrate 101 on the other end side, and a projection fitting to the second hole is provided on the spring piece 141. The first projecting piece is inserted to the first hole, so that one end side of the substrate 101 is supported by one end side of the supporting board 121; and the other end side of the substrate 101 is superposed on the other end side of the supporting board 121, is pressured by the spring piece 141, and the projection of the spring piece 141 is fitted to the second hole of the substrate 101, so that the other end side of the substrate 101 is supported by the other end side of the supporting board 121.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper dust removing device for removing paper dust attached to a paper feed roller.

[0002]

2. Description of the Related Art In a conventional copying machine (copying machine), a paper dust removing device is used to remove paper dust attached to a paper feed roller for feeding paper.

FIG. 6 shows a schematic configuration of the entire conventional copying machine. A document table 2 is fixed on the upper surface of the copying machine body 1, and a document holder 3 is provided on the document table 2 so as to be openable and closable.

An exposure unit 4 for reading an original is provided inside the copying machine main body 1, and an image for forming a toner image of the read original is provided in the central portion of the copying machine main body 1. A forming unit 5 is provided. The image forming section 5 has a photosensitive drum 6 on the surface of which an electrostatic latent image is formed. Around the photosensitive drum 6, a charging device 7, a developing device 8, a transfer separation device 9 and a cleaning device 10 are arranged.

On the other hand, at the bottom of the copying machine main body 1, a paper feeding section 11 is provided.
Is provided. The paper feeding unit 11 includes a bypass table 12 provided on the right side (as viewed in the figure) of the copying machine main body 1, three paper feeding cassettes 13 to 15 arranged vertically below the copying machine main body 1, A large paper feed cassette 16 for storing a large amount of paper, which is arranged on the right of the paper cassettes 13 to 15.
And the bypass table 12 or the paper feed cassettes 13 to 1
It is composed of a paper feeding device 17 for feeding the paper stored in 6 to the image forming section 5.

[0006] The paper feed device 17 separates the taken-out papers one by one from the rollers 18 to 21 for taking out the uppermost paper in the paper feed cassettes 13 to 16 and feeds the taken papers upward. The rollers 22 to 25 for feeding into the vertical transport path 26 for transporting, and the rollers 27 and 30 for transporting the paper in the vertical transport path 26 are provided. The sheet of paper is sent to the image forming unit 5.

[0007] In such a copying machine, there is a disadvantage that paper dust comes out from the paper during the transportation of the paper and adheres to the paper feed roller, so that the paper cannot be fed promptly. In order to eliminate this inconvenience, the paper dust removing device is installed on an appropriate roller for paper feeding. In this paper dust removing device, a long substrate having a long paper dust removing member that comes into contact with a paper feeding roller in the axial direction is attached to the surface of the paper feeding roller along the axial direction of the roller. The structure is such that it is attached to the provided support plate.

[0008]

However, the conventional paper dust removing device has a problem that maintainability is not good. The paper dust removing member needs to be replaced after being used for a certain period of time, but it takes a lot of time and effort to remove and refit a new one. In other words, the work of loosening the screws that hold the long substrate with paper dust removing members and tightening the screws for new products is extremely troublesome because the paper dust removing device is originally installed in a narrow space. It will cost you.

In view of the above circumstances, it is an object of the present invention to provide a paper dust removing device having excellent maintainability.

[0010]

In order to solve the above problems, the present invention provides a long substrate having a long paper dust removing member, which is in axial contact with a paper feeding roller, attached to the surface thereof. In a paper dust removing device which is attached to a support plate disposed along the axial direction of the roller near the roller and removes the paper dust attached to the roller by a paper dust removing member,
The substrate has a first hole opened in the longitudinal direction at one end side thereof and a second hole penetrating the substrate at the other end side thereof, while the support plate has the first hole at the one end side thereof. Has a projecting piece (first projecting piece) that can be inserted in the hole in the longitudinal direction, and has a spring piece that presses the board when the boards are superposed on the other end side, and supports the spring piece. A projection that fits into the second hole is provided on the surface facing the plate surface, and one end side of the substrate is at one end side of the support plate by inserting the first projecting piece into the first hole. Supported by
The other end side of the substrate is overlapped with the other end side of the support plate and pressed by the spring piece, and the protrusion of the spring piece is fitted into the second hole of the substrate so that the other end side of the substrate is the support plate. It is configured to be supported on the other end side.

In the paper dust removing device of the present invention, in addition to the above,
A step portion is formed along the longitudinal direction in the central portion in the width direction of the substrate, and at least one third hole opened in the width direction is formed in the longitudinal intermediate portion of the step portion.
At least one second projecting piece projecting toward the substrate is formed at a position corresponding to the third hole in the middle portion in the longitudinal direction of the support plate, and the second projecting piece is the third projecting piece. The structure in which the substrate is supported by the support plate even in the longitudinal intermediate portion by being inserted into the hole is a preferable mode.

[0012]

According to the present invention, the first projecting piece of the supporting plate is fitted into and connected to the first hole of the substrate, and the other end side of the substrate is pressed by the spring piece of the supporting plate, and The protrusion of the spring piece is fitted and fixed in the hole of 2. Therefore, the attaching and detaching work can be realized by the fitting work and the removing work, so that the maintainability thereof is excellent.

[0013]

EXAMPLES Examples of the present invention will be described below.

FIG. 1 shows an installed state of a paper dust removing device according to an embodiment. 2 to 4 show a process of attaching / removing a long substrate to / from a support plate in the paper dust removing device of the embodiment. FIG. 5 shows a long substrate with a paper dust removing member in the paper dust removing device of the embodiment.

As shown in FIG. 1, the paper dust removing apparatus 100 of the embodiment is installed on a paper feed roller 150 composed of a pair of left and right rollers 151, 152. Each sheet guided by a number of guides G in the route shown by the one-dot chain line in FIG.
Although the paper dust coming out of the paper adheres to the roller 150 while the paper is being fed, the paper dust that has adhered to the paper dust removing device 100 is guided by the roller 150. Remove it.

As shown in FIG. 2, the paper dust removing apparatus 100 has a long metal substrate 101 with a paper dust removing member 102.
Are attached to the support plate 121.

The substrate 101 is, as shown in FIGS.
A step portion 103 is formed along the longitudinal direction in the widthwise central portion of the substrate 101 except the upper end of the substrate 101. That is, the substrate 101 is flat on the left side of the widthwise central portion, but on the right side, it is bent downward, then horizontally to the right, and then bent upward again. Then, a long paper dust removing member 102 made of sponge is adhered to the flat surface on the left side of the central portion of the substrate 101 in the width direction by an adhesive agent or an adhesive agent.

This substrate 101 has a first hole 105 opened in the longitudinal direction on the upper end side (one end side) and a second hole 107 penetrating the substrate on the lower end side (other end side). . The right side of the center of the upper end of the substrate 101 is slightly bent downward, a first hole 105 is formed in this bent portion, and the paper dust removing member 102 is provided near the lower end of the substrate 101.
That is, it partially advances slightly before the installation area, and the second hole 107 penetrating the substrate 101 is formed in this advanced portion. In addition, two elongated third holes 108 opened in the width direction are formed in the middle portion of the step portion 103 in the longitudinal direction.

On the other hand, the support plate 121 has an upper end side (one end side).
Has a first projecting piece 125 which can be inserted into the first hole 105 in the longitudinal direction, and has the substrate 10 on the lower end side (the other end side).
It has a spring piece 141 that presses the substrate 101 when the layers 1 are stacked. Support plate 121 for this spring piece 141
A protrusion 142 that fits into the second hole 107 is provided on the surface facing the surface.
Is provided. Further, two second projecting pieces 145 projecting toward the substrate 101 are formed at positions corresponding to the third holes 108 in the middle portion in the longitudinal direction of the support plate 121.

The upper end side of the substrate 101 is the support plate 1
21 of the first projecting piece 125 is the first hole 105 of the substrate 101.
It is supported on the upper end side of the support plate 121 by being inserted into. The lower end side of the substrate 101 is supported on the lower end side of the substrate 101 by being overlapped with the lower end side of the support plate 121, pressed by the spring piece 141, and the projection 142 fitted into the second hole 107.

Further, in the paper dust removing device of the embodiment, the second protrusion 145 of the supporting plate 121 is inserted into the third hole 108 so that the supporting plate 121 is also formed at the intermediate portion in the longitudinal direction of the substrate 101. Although it is also supported in the longitudinal middle part,
The tip of the projecting piece 145 is bent in the longitudinal direction,
Locked to the belly of 3. The distance between the first and second holes of the substrate 101 is narrower than the distance between the base of the projecting piece 125 of the support plate 121 and the protrusion 142, and the substrate 101 is rotated and then pulled downward to project into the second hole 107. The board 1
When 21 is pulled, the tip of the second projecting piece 145 has the stepped portion 103.
It is locked to the belly of the substrate and prevents the substrate 101 from coming off. Since the tip of the projecting piece 145 is bent in the longitudinal direction of the support plate, the distance between the first and second holes of the substrate 101 is set to the support plate 12.
The distance between the base of the first projection 125 and the projection 142 is made slightly shorter so that the insertion of the second projection 145 into the third hole 108 is not hindered.

Next, the operation of this embodiment will be described. In the paper dust removing apparatus of the present embodiment, as shown in FIG. 2, a long substrate 101 having a long paper dust removing member 102, which is in contact with a paper feeding roller in the axial direction, attached to the surface thereof, A supporting plate 121 is provided beside the roller along the axial direction of the roller, and the substrate 101 with the paper dust removing member 102 is provided.
Is attached to the support plate 121. In the case of the present invention, the attachment of the substrate 101 to the support plate 121 is extremely simple.

That is, one end side of the substrate 101 is first supported to one end side of the support plate, but as shown in FIG. 3, the substrate 101 is provided in the first hole 105 opened in the longitudinal direction at the one end side. The first protrusion 12 on one end side of the support plate 121
5 is inserted in the longitudinal direction. Next, the substrate 101
The other end side of the substrate 101 is supported by the other end side of the support plate, but as shown in FIG. 3, the other end side of the substrate 101 is rotated and pushed into the gap S between the surface of the support plate 121 and the spring piece 141. Then, the other end side of the substrate 101 is overlapped with the other end side of the support plate 121. The other end side of the substrate 101 pushes the protrusion 142 of the spring piece 141 away from the elastic piece to enter the gap S, and when the second hole 107 comes to the position of the protrusion 142, the second piece 107 is pressed by the spring piece 141 and protrudes. 142 is the second hole 1
By being fitted into 07, as shown in FIG. 4, the other end side of the substrate 101 is supported by the other end side of the support plate 12.

In this way, the operation is only the operation of inserting the projecting piece into the hole and the operation of inserting the substrate into the gap between the surface of the support plate and the spring piece, and there is no troublesome screwdriver operation and it is extremely simple.

Further, in the case of the present invention, the removal of the substrate 101 from the support plate 121 is extremely easy.

When removing the substrate 101 from the support plate 121,
The support on the other end side of the substrate 101 is released first.
It is an operation of pulling the other end side of the substrate 101 having the second hole 107 to the side (right side). Then, the spring piece 14
The projection 142 of No. 1 causes the elasticity of the spring piece 141 to cause the second hole 107.
Then, the other end side of the substrate 101 comes out of the gap S, and the support of the other end side of the substrate 101 is first released. Next, substrate 1
The support on one end side of 01 is released.
Is pulled toward the hand side (lower side), the protrusion 125 of the support plate 121
The first hole 105 of the substrate 101 emerges from the above, one side end of the substrate 101 is disengaged, and the support is released. It is only a board pulling operation, and there is no troublesome screwdriver operation, and it is simple.

Further, the step portion 10 at the central portion in the width direction of the substrate 101
In the middle part of 3, there is a third hole 108 opened in the width direction,
On the other hand, when there is the second projecting piece 145 projecting toward the substrate 101 at a position corresponding to the supporting plate 121, the second projecting piece 145 is simultaneously inserted in the third hole 108 according to the above-mentioned mounting operation.
Is inserted, the substrate 101 is simultaneously supported even in the middle portion in the longitudinal direction, so that the substrate 101 is firmly attached. Of course, from the third hole 108 to the second
It goes without saying that the support at the intermediate portion is released at the same time because the projecting pieces 145 of (1) are simultaneously withdrawn.

As shown in FIGS. 2 to 4, the support plate 12
When the tip of the first projecting piece 145 is bent in the longitudinal direction of the support plate, the distance between the first and second holes of the substrate 101 is set to the support plate 12.
The distance between the base of the first projection 125 and the projection 142 is set to be slightly shorter. When supporting the other end of the substrate 101, the substrate 1
By rotating 01 after pulling the substrate 101 downward (the other end), the tip of the projecting piece 145 is locked to the belly of the step 103 at the same time as supporting the other end of the substrate 101. As a result, the tip of the projecting piece 145 becomes a stopper, and the substrate 1
01 will not bounce off to the right. When releasing the support on the other end side of the substrate 101, the substrate 101 is first pushed to the upper side (one end side), and the tip of the projecting piece 145 is moved to the step 103
It is only moved away from the belly of the body so that it can come out from the third hole 108. Attaching the substrate 101 to the support plate 121
The removal operation does not become complicated.

As described above, the attachment / detachment of the support plate 121 and the substrate 101 is extremely simple.

The stepped portion 103 of the substrate 101 is the substrate 1
01 of the support plate 121 in the first hole 105
It also serves as a guide when inserting 5. That is, the substrate 10
The step portion 103 of No. 1 is applied to the tip of the second projecting piece 145 of the support plate 121, and the substrate 101 is slid upward to make the first step.
The projecting piece 125 can be quickly inserted into the hole 105.

Of course, in the paper dust removing apparatus 100 of the embodiment,
The paper dust removing member 102 contacting the surface of the roller 151 removes the paper dust.

When the present invention is installed on a paper feed roller of a copying machine, it is installed, for example, on the roller 25 or the roller 30 in FIG.

In the case of the embodiment, the support plate 121 is the guide 12
Although it was formed integrally with 0, the support plate 121
Even if the support plate 121 is separate from the guide 120 and is fixed to the separate guide 120 or other members, the support plate 121 does not need to be removed, so there is no problem. Further, the third hole, the second protrusion, or the step 103 is not always essential.

Further, the paper dust removing device of the present invention can be applied to a paper feeding roller of a copying machine. However, in addition to an appropriate paper feeding roller in the copying machine, other than the copying machine. It goes without saying that the invention can also be applied to rollers for feeding paper for various office equipment.

In the paper dust removing device of the present invention, a substrate with a paper dust removing member is used. However, the paper dust removing member is not limited to a specific material, but a sponge or the like can be used. Examples of the material include, but are not limited to, metal plates such as aluminum plates and steel plates. On the other hand, the supporting plate used for mounting the substrate with the paper dust removing member is not limited to a particular material, but may be a metal plate such as an aluminum plate or a steel plate.

[0036]

As is apparent from the above description,
In the paper dust removing device of the present invention, when removing the substrate with the long paper dust removing member from the support plate, it is only necessary to insert the projecting piece into the hole and insert the substrate into the gap between the support plate surface and the spring piece. Yes, there is no troublesome screwdriver operation, and even when attaching a substrate with a long paper dust removing member to the support plate, there is only a pulling operation of the substrate, and again no troublesome screwdriver operation. Therefore, the paper dust removing device of the present invention has excellent maintainability.

In the paper dust removing apparatus of the present invention, the substrate is simultaneously supported in the longitudinal middle portion according to the above attaching operation, and the support in this middle portion is simultaneously released according to the above removing operation. Therefore, it is highly useful because the mounting of the board is strengthened while maintaining excellent maintainability.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an installed state of a paper dust removing device according to an embodiment.

FIG. 2 is a plan view showing a substrate with a paper dust removing member and a supporting plate in the apparatus of the embodiment in an exploded manner.

FIG. 3 is a plan view showing a state in which the substrate with the paper dust removing member and the support plate are being attached in the apparatus of the embodiment.

FIG. 4 is a plan view showing a mounting state of a substrate with a paper dust removing member and a support plate in the apparatus of the embodiment.

FIG. 5 is a perspective view showing a substrate with a paper dust removing member in the apparatus of the embodiment.

FIG. 6 is an explanatory diagram showing a schematic configuration of a copying machine in which a paper dust removing device is installed.

[Explanation of symbols]

 101 Long board 102 Long paper dust removing member 103 Step 105 First hole 107 Second hole 108 Third hole 121 Support plate 125 Projection piece 141 Spring piece 142 Projection 145 Second projection piece 150 Paper Roller for feeding

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location G03G 21/16 (72) Inventor Arihiro Tsunoda 1-2-2 Tamatsukuri, Chuo-ku, Osaka-shi, Osaka Within Mita Industry Co., Ltd.

Claims (2)

[Claims] 1. A long substrate having a long paper dust removing member, which is in contact with a paper feeding roller in the axial direction, adhered to the surface of the paper feeding roller, is arranged beside the roller along the axial direction of the roller. In the paper dust removing device attached to the supported support plate and removing the paper dust attached to the roller by a paper dust removing member,
The substrate has a first hole opened in the longitudinal direction at one end side thereof and a second hole penetrating the substrate at the other end side thereof, while the support plate has the first hole at the one end side thereof. Has a projecting piece that can be inserted in the longitudinal direction with respect to the hole and has a spring piece that presses the substrate at the other end side when the substrate is superposed, and the surface of the spring piece facing the support plate surface is A projection that fits into the second hole is provided, and the first
Is inserted into the first hole, one end of the substrate is supported by one end of the support plate, and the other end of the substrate is superposed on the other end of the support plate and pressed by the spring piece. In addition, the projection of the spring piece is fitted into the second hole of the substrate so that the other end of the substrate is supported by the other end of the support plate. . 2. A step portion is formed along a longitudinal direction at a central portion in the width direction of the substrate, and at least one third hole opened in the width direction is formed at an intermediate portion in the longitudinal direction of the step portion. At the same time, a second portion projecting toward the substrate at a position corresponding to the third hole is provided at an intermediate portion in the longitudinal direction of the support plate.
At least one protruding piece is formed, and the second protruding piece is inserted into the third hole so that the substrate is supported by the supporting plate even in the longitudinal intermediate portion. The paper dust removing device according to claim 1.