公开(公告)号：US20130233499A1

公开(公告)日：2013-09-12

申请号：US13468299

申请日：2012-05-10

Applicant: Cheng-Ming WU

Inventor： Cheng-Ming WU

IPC: E06B9/38

CPC classification number: E06B9/322 ,  E06B2009/3222

Abstract: Disclosed is a control device for a cordless blind with willful stop at any positions according to user needs during switching operation. The control device primarily comprises a force-return mechanism, a shaft connector, and a braking buffer mechanism which are all installed inside a same housing. The force-return mechanism has a flat spring bevel gear and an elastic element. One end of the shaft connector is a transmission bevel gear meshed with the flat spring bevel gear. The braking buffer mechanism includes a friction ring and an impeding spring where the friction ring is immovably fixed inside the housing with a wear-proof annular inwall. The impeding spring is tightly plugged into the friction ring with an extrusion to prevent the rotation of the transmission bevel gear. Specifically, the shaft connector has a trigger to change the friction between the impeding spring and the friction ring.

Abstract translation: 本发明公开了一种无绳盲板的控制装置，其在切换操作期间根据用户需要在任意位置故意停止。 控制装置主要包括一个力回复机构，一个轴连接器和一个制动缓冲机构，它们均安装在同一个外壳内。 力回复机构具有扁平的弹簧锥齿轮和弹性元件。 轴连接器的一端是与扁平弹簧伞齿轮啮合的传动伞齿轮。 制动缓冲机构包括摩擦环和阻挡弹簧，其中摩擦环通过耐磨环形壁固定在壳体内。 阻碍弹簧用挤压件紧密地插入摩擦环中，以防止变速器锥齿轮的旋转。 具体地，轴连接器具有用于改变阻力弹簧和摩擦环之间的摩擦力的触发器。