SELF-LOCKING MECHANISM
PROBLEM TO BE SOLVED: To provide a self-locking mechanism suitable for use in an electric parking brake system, and an electric parking brake system including the self-locking mechanism.SOLUTION: A self-locking mechanism has a driving member 522, 524, a driven member, a stationary member, a lock hol...
Gespeichert in:
Hauptverfasser: | , , , |
---|---|
Format: | Patent |
Sprache: | eng ; jpn |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a self-locking mechanism suitable for use in an electric parking brake system, and an electric parking brake system including the self-locking mechanism.SOLUTION: A self-locking mechanism has a driving member 522, 524, a driven member, a stationary member, a lock holder and a large number of lock elements 564. The lock holder encircles the driving member 522, 524 and the driven member. The lock holder has a support base 562 and ribs 563 extending from the support base 562. A lock element 564 is coupled to the axial end portion of each rib 563. The lock elements 564 are radially positioned between a radially outer surface of the driven member and an inner wall of the stationary member. The distance between the radially outer surface and the inner wall gradually decreases from a center to opposite circumferential sides. The maximum distance between the radially outer surface and the inner wall is greater than the diameter of the lock element 564, and the minimum distance is less than the diameter of the lock element 564.SELECTED DRAWING: Figure 6
【課題】電気駐車ブレーキシステムに用いるのに適したセルフロック機構、及びセルフロック機構を含む電気駐車ブレーキシステムを提供する。【解決手段】セルフロック機構は、駆動部材522,524と、被駆動部材と、固定部材と、ロックホルダと、多数のロック部材564とを有する。ロックホルダは、前記駆動部材522,524及び前記被駆動部材を取り囲み、支持ベース562と、前記支持ベース562から延在するリブ563とを有する。ロック部材564は、各リブ563の軸方向端部に連結される。前記ロック部材564は、前記被駆動部材の半径方向外面と前記固定部材の内壁との間に半径方向に配置される。前記半径方向外面と前記内壁との間の距離は、中心から周方向の両側まで徐々に小さくなる。前記半径方向外面と前記内壁との間の最大距離は、前記ロック部材564の直径よりも大きく、最小距離は、前記ロック部材564の前記直径よりも小さい。【選択図】図6 |
---|