JP2000296023A - Brush for wiping inner surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the re-adhesion of dust or stain such as paint onto the inner surface of a cylinder by using an inner surface wiping brush where bristles radially planted in a hub are notched at every prescribed interval. SOLUTION: The hub 1 is constituted of long-sized channel steel, the plastic bristles 2 are planted in the groove part, both side surfaces constituting the channel steel are bent and integrated with the bristles 2 and, then, the bristles 2 are radially aligned with respect to the hub 1 by the rounding work of the hub 1. Then, the brush is inserted to the cylinder while being rotated and moved in the axial direction of the cylinder. Dust and stain such as paint adhered onto the inner surface of the cylinder are wiped-off by the tips of the bristles 2 and they are collected in the center part of the notch 3 after wiping and discharged to an outer part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush used for cleaning the inner surface of a cylindrical body for an electrophotographic photosensitive member or the like,
In particular, the present invention relates to an inner surface wiping brush used for wiping dust, dirt, etc. attached to the inner surface of a cylindrical body.

[0002]

2. Description of the Related Art As a conventional brush for cleaning an inner cylindrical body, it is general to simply implant hairs radially in a hub and move the brush in the axial direction while rotating the hub to clean the inner surface of the cylinder. Met.

[0003]

When the inner surface of a cylindrical body for an electrophotographic photosensitive member or the like is cleaned using a conventional rotating brush, dirt and the like adhering to the inner surface of the cylinder are scraped off with hair or wiped off with a solvent. Is dissolved and removed. The dirt is removed by sticking to the surface of the bristles of the brush or by removing it from the inside of the cylinder of the brush with the wiping solvent. However, when there is a large amount of removed material, the treatment cannot be completed simply by attaching it to the surface of the brush hair, and the removed material is attached again to the inner surface of the cylinder and cannot be removed cleanly. In particular, when dirt such as dust and paint adhered to the inner surface of the cylinder is wiped off with a conventional brush, a re-adhesion phenomenon of dust and paint often occurs. This is due to the re-adhesion of dirt (dust, foreign matter, paint, etc.) dissolved in the wiping solvent. To solve this problem, replacing the brush and renewing the wiping solvent frequently increases the cost. Is not preferred.

[0004]

Means for Solving the Problems The present inventors have solved the above-mentioned problems, and the gist of the present invention is to use an inner surface wiping brush formed by cutting hairs radially implanted in a hub at predetermined intervals. As a result, the efficiency of wiping and the efficiency of cleaning the brush are increased, so that re-adhesion of dirt such as dust and paint to the inner surface of the cylinder can be prevented. Also, with respect to the rotation direction of the brush,
It has been found that it is more effective if the leading edge of the cut hair has an inclined surface having a negative angle of attack θ.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an inner surface wiping brush of the present invention, and FIG. 2 is a side view thereof.

In FIG. 1, reference numeral 1 denotes a hub constituting a brush;
Are hairs radially implanted in the hub 1, 21 is an inclined surface of the leading edge of the hairs 2, and 3 is a notch provided at predetermined intervals of the hairs 2. The hub 1 is made of a long SUS channel steel, and a hair 2 made of plastic or the like is implanted in the groove, and both sides of the channel steel are caulked to be integrated with the hair 2.
It is cut to length and then rolled into a circle. Due to the rounding of the hub, the bristles 2 are radially aligned with respect to the hub 1.

Further, as shown in FIG. 2, the inclined surface 21 of the leading edge of the bristle 2 which is cut out at predetermined intervals has an inclination of a negative angle of attack θ with respect to the rotation direction N of the brush. . Note that O
Indicates the center point of the hub 1.

[0008]

According to the brush for wiping the inner surface of the present invention, the cutouts 3 are provided at predetermined intervals in the bristles 2 implanted in the hub 1, so that the brush is inserted into the cylinder while rotating. By moving in the axial direction of the cylinder, dirt such as dust and paint adhered to the inner surface of the cylinder is wiped off at the tip of the bristles 2, and the dirt such as dust and paint is wiped at the center of the notch 3. The brushes are collected and discharged to the outside, so that dirt such as dust and paint is less likely to re-adhere to the inner surface of the cylinder, and the dirt such as dust and foreign matter is less likely to enter the gaps between the brushes. Also less. In particular, when the inclined surface 21 of the leading edge of the cut hair 2 has an inclined surface having a negative angle of attack θ with respect to the rotation direction N of the brush, the hair 2 is wiped off at the tip of the hair 2. Since dirt such as dust and paint is guided by the inclined surface 21 and collected at the center of the brush, there is no reattachment of dirt such as dust and paint to the inner surface of the cylinder. Also, the brush of the present invention
It has the advantage that the hair can be easily washed and the washing time can be shortened. Further, by providing the cutouts 3 in the bristles 2, extra stress is less likely to be applied to the bristles of the brush, so that the wiping efficiency due to the opening of the bristles of the bristles 2 due to use is low, and longer use is possible. became.

[Brief description of the drawings]

FIG. 1 is a front view of an inner surface wiping brush of the present invention.

FIG. 2 is a side view of the inner surface wiping brush of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hub 2 Bristle 21 Slope 3 Notch θ Angle of attack of leading edge of bristle

Claims (2)

[Claims] 1. A brush for wiping an inner surface formed by cutting hairs radially implanted in a hub at predetermined intervals. 2. The brush for wiping the inner surface according to claim 1, wherein the leading edge of the cut hair has an inclined surface having a negative angle of attack θ with respect to the rotation direction of the brush.