FLOATING BRAKE DISC

• Main Author: TOMIZAWA NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 27.09.2023
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To disperse, in a floating brake disc BD1 comprising an annular rotor 1 and a hub 2 arranged inside the rotor, where on an inner peripheral part of the rotor, a plurality of projection pieces 12 are formed with intervals in a circumferential direction, on an outer peripheral part of the hub, receiving recess parts 25 each receiving the projection pieces are formed, and the rotor and the hub are connected at multiple locations in the circumferential direction by inserting the respective projection pieces and the respective receiving recess part, and are attached to a wheel of the vehicle body through the hub, a load applied to the receiving recess part of the hub during acceleration or braking of the vehicle body to improve abrasion resistance.SOLUTION: Portions of projection pieces 12 located at the front and rear in a rotational direction of a rotor 1 are formed as curved surfaces 12a that are convex toward the front and rear in the rotational direction, a receiving member 3 fitted into a receiving recess part is further provided, and the receiving member is provided with a receiving hole 31 as a projection piece receiving surface that is coincident with the contour of the projection piece.SELECTED DRAWING: Figure 3 【課題】環状のロータ１とこのロータの内側に配置されるハブ２とを備え、ロータの内周縁部に突片１２が周方向に間隔を存して複数形成されると共にハブの外周縁部に各突片を夫々受け入れる受入凹部２５が形成され、各突片を各受入凹部に差し込んでロータとハブとが周方向複数箇所で連結され、ハブを介して車体のホイールに取り付けられるフローティング型のブレーキディスクＢＤ１にて、車体の加速時や制動時にハブの受入凹部に加わる負荷が分散されて耐摩耗性の向上を図ることができる構成する。【解決手段】ロータ１の回転方向前方及び後方に夫々位置する突片１２の部分が、回転方向前方及び後方に向けて凸の湾曲面１２ａとして形成され、受入凹部に嵌合する受入部材３を更に有し、受入部材に、突片に輪郭に合致する突片受入面としての受入孔３１が設けられる。【選択図】図３