FRICTION MATERIAL, AND BRAKING DEVICE AND IMAGE FORMING DEVICE USING THE SAME

PROBLEM TO BE SOLVED: To obtain a friction material having an optimized coefficient of friction and a prolonged life and improved in performances and the easiness of maintenance by distributing a hard resin in a soft resin having a specified bending modulus. SOLUTION: A hard resin 25h comprising a h...

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Bibliographische Detailangaben
1. Verfasser:	SUGAYA TOMIO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BLASTING BRAKES CHEMISTRY CINEMATOGRAPHY CLUTCHES COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COUPLINGS FOR TRANSMITTING ROTATION ELECTROGRAPHY ELECTROPHOTOGRAPHY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL PROCESSES OF COMPOUNDING HEATING HOLOGRAPHY LIGHTING MAGNETOGRAPHY MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHOTOGRAPHY PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL WEAPONS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a friction material having an optimized coefficient of friction and a prolonged life and improved in performances and the easiness of maintenance by distributing a hard resin in a soft resin having a specified bending modulus. SOLUTION: A hard resin 25h comprising a hard polyamide or a hard polyamide elastomer and having a bending modulus of 1,000-2,000 MPa is dispersed in a soft resin 25s comprising a soft polyamide or a soft polyamide elastomer and having a bending modulus of 100-500 MPa to constitute a brake pad 25 which is a friction material having a coefficient of friction of 0.4-0.5. In an image forming apparatus having a front frame, a rear frame spaced from the front frame by a specified distance, and light-sensing drum supported by the front frame and the rear frame, the friction material is pressure-contacted with at least one end in the axial direction of the light-sensitive drum.