The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2012
Filed:
Sep. 29, 2010
Tadashi Takenaka, Takatsuki, JP;
Koji Tamura, Takatsuki, JP;
Tadashi Takenaka, Takatsuki, JP;
Koji Tamura, Takatsuki, JP;
Sunstar Engineering Inc., Takatsuki-shi, JP;
Abstract
A brake disk producing method, comprising a periphery pressing step for forming an outer peripheral shape () of a rotor plate () into a peripheral shape having recesses and ridges () repeated in a radial direction, and a chamfering step for forming a chamfered surface () by pressing, against a corner portion () on an outer peripheral edge of the rotor plate (), a die (), and a brake disk made by the method. Accordingly, it is possible to improve heat radiation capability, reduce the weight and moment of inertia, improve safety in handling, and suppress increase in production costs. Furthermore, by forming the chamfered surface (), the amount of wear of a brake pad pressed by the brake disk () can be reduced, and durability of braking performance can be maintained or improved.