公开(公告)号：WO1995016148A1

公开(公告)日：1995-06-15

申请号：PCT/US1994013658

申请日：1994-11-29

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  CHARMAT, Djamel

IPC: F16D65/22

CPC classification number: F16D65/22 ,  F16D2125/60 ,  F16D2125/64

Abstract: The drum brake (10) comprises a backing plate (11) having an anchor block (15) and shoe retainer (17) attached thereto, a parking brake lever (40) connected with one (14) of a pair of drum brake shoes (12, 14), a first pair of drum brake shoe ends (16, 18) engaging an actuation mechanism (20) and a second pair of drum brake shoe ends (22, 24) engaging the anchor block (15). A cam mechanism (50) is attached pivotally to the backing plate (11) and extends transversely relative to the plane of the backing plate (11). A parking brake cable (72) extends through an opening (25) in the backing plate (11) and is connected with the cam mechanism (50) and a second, shorter cable (70) extends between the cam mechanism (50) and an end (42) of the parking brake lever (40). Retraction of the parking brake cable (72) effects a greater displacement of the shorter cable (70) and parking brake lever (40) to effect a parking brake application.

Abstract translation: 鼓式制动器（10）包括具有锚固块（15）和附着在其上的鞋保持器（17）的背板（11），与一对鼓式制动蹄板中的一个（14）连接的驻车制动杆（40） 与第一对接合致动机构的鼓式制动靴端部（16,18）和接合锚块（15）的第二对鼓式制动靴端部（22,24）接合。 凸轮机构（50）枢转地附接到背板（11）并且相对于背板（11）的平面横向延伸。 驻车制动器电缆（72）延伸穿过背板（11）中的开口（25）并与凸轮机构（50）连接，并且第二较短的电缆（70）在凸轮机构（50）和 驻车制动杆（40）的端部（42）。 驻车制动器电缆（72）的收回使较短的电缆（70）和驻车制动杆（40）的位移更大，以实现驻车制动应用。