Sliding member, component and noise reducing method for mechanical apparatus, excluding those used for image forming apparatus

Abstract

A sliding member (excluding that used for an image forming apparatus), which can maintain a satisfactory friction coefficient and reduce generation of a rubbing sound (noise) caused by a continuously sliding member, is provided. A component and a mechanical apparatus using the sliding member, and a method for reducing noise caused from a mechanical apparatus, are also provided. Additionally, a coating agent composition is provided for preparing the sliding member. The sliding member has a lubricating film contacting another member, wherein an arithmetic average roughness Ra based on JIS B0601 (2001) of a surface of the lubricating film is from 0.01-1.0 μm, and the lubricating film comprises 100 parts by mass of a coat-formable resin binder (A) and 5 to 200 parts by mass of a solid lubricant (B).

Description

TECHNICAL FIELD[0001]The present invention relates to a sliding member for reducing noise (especially a rubbing sound) from a mechanical apparatus excluding an image forming apparatus. Further, the present invention relates to a component and a mechanical apparatus having the foregoing member, excluding those used for an image forming apparatus. Also, the present invention relates to a noise reducing method, using the sliding member, for a mechanical apparatus excluding an image forming apparatus. The present application claims priority to Japanese Patent Application No. 2015-242309 filed in Japan on Dec. 11, 2015, and the contents of the application excluding those applied to an image forming apparatus are incorporated by reference herein.[0002]In the present invention, the term “excluding an image forming apparatus” or “excluding that / those used for an image forming apparatus” means that something used for an image forming apparatus is expressly and voluntarily excluded by the app...

AI Technical Summary

Benefits of technology

[0009]The sliding member provided by the present inventors is capable of maintaining the satisfactory friction coefficient and reducing generation of the rubbing sound (noise) caused from members continuously sliding with other in such as an automobile. Further, the component and the mechanical apparatus using the sliding member, and the method for reducing noise generated from a mechanical apparatus can be provided by the present invention.

[0010]Furthermore, a coating agent composition of the present invention is adjusted so that the arithmetic average roughness Ra based on JIS B0601 (2001) of the lubricating film alone after applying and curing is within a specified range and the coating agent composition capable of reducing the rubbing sound generated from the surface sliding with a counter member even when the coating agent composition is applied on the sliding member. Herein, an applied film formed after coating can make a surface of the sliding member smoothly, and then reduce the rubbing sound generated by sliding on another member, maintain low friction coefficient and satisfactory wear resistance, and provide satisfactory adhesiveness to plastic-based materials, elastomer-based materials or metals such as stainless steel, steel plates, aluminum, etc.

Problems solved by technology

However, the latter sound is the rubbing sound generated during a dynamic friction state in which the members are continuously sliding with each other, and it was not capable of suppressing the rubbing sound even when decreasing the difference between the static friction coefficient and the dynamic friction coefficient of the lubricating film.

However, the members described in the patent literature is not sliding members which generates rubbing sound during a dynamic friction state in which the members are continuously sliding with each other, and there is a negative suggestion such that a disk-scratch resistance is inferior when an arithmetic average roughness Ra of the surface is less than 1.0 μm, therefore the technical problem to suppress the rubbing sound of the sliding members cannot be solved.