Patent ID: 7201257
Filing Date: 2007-04-10
Classification: F16D

Abstract:
1. A disk brake device comprising: a rotary brake disk having a rotational direction and an axial direction; at least one pad having a guide portion disposed on one end of the pad in the rotational direction of the brake disk; a mount having a support portion arranged and constructed to slidably support the guide portion, so that the pad can move in the axial direction of the brake disk; a radially outer pressure receiving surface and a radially inner pressure receiving surface formed on at least one end of each of the at least one pad in the rotational direction of the brake disk and arranged and constructed to receive a reaction force from the mount in order to inhibit the pad from moving in the rotational direction of the brake disk when the at least one pad is subjected to a force in the rotational direction of the brake disk; a radially outer support surface and a radially inner support surface respectively corresponding to the radially outer pressure receiving surface and the radially inner pressure receiving surface; wherein the radially outer pressure receiving surface and the radially inner pressure receiving surface are respectively disposed on a radially outer side and a radially inner side with respect to the brake disk of the guide portion; wherein an interaction between the radially outer support surface and the radially outer pressure receiving surface generates a radially outer portion of the reaction force from the mount; wherein an interaction between the radially inner support surface and the radially inner pressure receiving surface generates a radially inner portion of the reaction force from the mount; wherein the radially outer portion of the reaction force and the radially inner portion of the reaction force are each greater than zero when the at least one pad is subjected to a force in the rotational direction of the brake disk; a biasing device disposed between the guide portion and the support portion, wherein the biasing device biases the guide portion in a radially inner direction and a radially outer direction; and wherein the biasing device also biases the guide portion in an axial direction away from the brake disk.