公开(公告)号：US20160060922A1

公开(公告)日：2016-03-03

申请号：US14841860

申请日：2015-09-01

Applicant: Magna Closures Inc.

Inventor： John Edward CLARK ,  Ilya NEYMAN ,  Dani ANDRAOS ,  John Robert Scott MITCHELL ,  John DISTEFANO ,  Shant PAILIAN

IPC: E05C9/20 ,  E05B81/06 ,  B60J5/00 ,  E05C9/22 ,  E05C19/00

CPC classification number: E05B81/06 ,  E05B81/25 ,  E05B81/34 ,  E05B81/64 ,  Y10T292/1021 ,  Y10T292/1082 ,  Y10T292/14

Abstract: A door latch assembly for an automotive vehicle door includes a gearless cinch actuator. The cinch actuator includes an extensible housing member connected to a threaded rod by a nut. The extensible housing member is also connected to a cable for cinching the door. A motor rotates the threaded rod, which moves the extensible housing member between rest and cinched positions. The motor is connected to the threaded rod without the use of gears. An anti-friction agent, such as a combination of a PTFE-containing coating and PTFE-containing grease, is applied between the nut and the threaded rod. The materials and anti-friction agent used at the interface of the threaded rod and nut together provide a friction coefficient (μ) of about 0.045 or less.

Abstract translation: 用于机动车门的门闩组件包括无齿轮式致动器。 带状致动器包括通过螺母连接到螺杆的可伸展壳体构件。 可伸缩的外壳构件也连接到用于收紧门的电缆。 电动机旋转螺杆，其使可延伸的壳体构件在静止和收紧位置之间移动。 电动机连接到螺杆上，而不使用齿轮。 在螺母和螺杆之间施加抗摩擦剂，例如含PTFE的涂层和含PTFE的润滑脂的组合。 在螺杆和螺母的界面处使用的材料和抗摩擦剂提供约0.045或更小的摩擦系数（μ）。