JPS646522Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Field of the Invention>> This invention relates to an improvement of a roller brush suitable for dry-type electronic copying machines and the like.

<<Prior Art and Its Problems>> For example, a paper feeding mechanism such as a dry type electronic copying machine is provided with a roller brush to clean ink and paper dust from the copying machine. This type of roller brush is generally manufactured by forming a large number of flocking holes in the outer periphery of a cylindrical core material, and press-fitting a pile-shaped brush material bundle into these holes.

However, with such a roller brush, the flocking density is coarse, and its distribution is uneven between the perforated areas and the non-perforated areas, which causes uneven cleaning such as so-called brush marks when cleaning with this type of roller brush. becomes.

In addition, various drawbacks have been pointed out, such as if the core material and brush material are not hard, the brush material will easily fall off, there will be material constraints, it will be difficult to obtain appropriate cleaning conditions, and productivity will be low. Ta.

<<Purpose of the invention>> This invention was made in view of the above-mentioned circumstances, and the purpose of the invention is to provide a roller brush that significantly improves cleaning efficiency without causing uneven cleaning. It is in.

<<Structure and Effects of the Invention>> In order to achieve the above object, the present invention applies an adhesive to the outer periphery of a roll-shaped urethane foam core material, attaches piles by electrostatic flocking, and attaches the piles to the urethane foam core material. It is characterized by being planted and fixed on the outer peripheral surface of the urethane foam core material so as to be arranged radially from the center.

That is, according to the above configuration, the cushioning properties of the roll-shaped urethane foam core material allow the brush to flexibly deform during cleaning, significantly improving the cleaning efficiency of ink and paper dust, etc., and also improving the cleaning efficiency during electrostatic flocking. By adjusting the flocking conditions, it is possible to freely obtain a density ranging from small to large, and the density distribution becomes uniform, effectively solving problems such as uneven cleaning that conventionally occurred. .

Furthermore, in the present application, since the electrostatic flocking method itself allows a wide range of materials to be selected, the pile to be used can be appropriately selected from materials depending on the application, and its production is easy and inexpensive, and it can be produced even in small quantities. It has the advantage of being adaptable to various production systems up to mass production.

<<Description of Embodiment>> Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

The drawing shows a roller brush according to the present invention, which includes a roll-shaped urethane foam core material 1 with an axial hole a formed in its center, and a cylindrical portion of the urethane foam core material 1 having a diameter from its center of rotation to the outer periphery of the cylinder portion of the urethane foam core material 1. It consists of a group of piles 2 planted upright in a radial manner, and an adhesive layer 3 is formed at the planting end of this group of piles 2, and the urethane foam core material is A pile 2 is fixed to the outer periphery of the pile 1.

The pile 2 may be appropriately selected from synthetic fibers or natural fibers such as polyamide resin, polyester resin, and acrylic resin.
may be freely selected from those that can bond both the urethane foam core material 1 and the pile 2 well.

Furthermore, in manufacturing the roller brush described above, a group of piles 2 cut to a suitable length and a urethane foam core material 1 with an adhesive layer 3 coated on the outer periphery in advance are applied to a high frequency voltage. Connect to the (-) and (+) sides of the generator, respectively, and
By dropping a group of piles 2 onto the urethane foam core material 1 through a sieve or the like and rotating the urethane foam core material 1, the piles 2 stand upright on the circumferential surface of the urethane foam core material 1 due to their electrostatic attraction. Then, the adhesive layer 3 is dried and solidified to obtain an integrated roller brush.

As described above, when the roller brush according to the present invention is used for cleaning a dry type electronic copying machine, etc., the roller brush according to the present invention can be used depending on the paper quality and paper feeding conditions of the copying machine, or various cleaning conditions such as ink and paper dust. The hardness of the pile, the length of the pile,
Alternatively, the density of the pile can be freely selected, effectively solving the problem of uneven cleaning, which is a conventional problem, and the cushioning properties of the urethane foam core material significantly improve the efficiency of cleaning ink and paper dust. This is an expensive idea.

[Brief explanation of the drawing]

The drawing is a perspective view of a roller brush according to the present invention. 1... Urethane foam core material, 2... Pile, 3...
adhesive layer.

Claims (1)

[Scope of utility model registration request] Adhesive is applied to the outer periphery of the rolled urethane foam core, and piles are attached using electrostatic flocking, and the piles are planted and fixed on the outer periphery of the urethane foam core so that they are arranged radially from the center. A roller brush that is characterized by: