公开(公告)号：US20180156714A1

公开(公告)日：2018-06-07

申请号：US15371487

申请日：2016-12-07

Applicant: Otis Elevator Company

Inventor： Takahiro Yamada ,  Atsushi Yamada ,  Hiromitsu Miyajima ,  Kenji Komiya

IPC: G01N19/02 ,  B66B31/02

CPC classification number: G01N19/02 ,  B66B25/006 ,  B66B31/02

Abstract: A handrail friction checking device comprises a handrail gripper for gripping the handrail and movable together with the handrail, a spring with one end of the spring being fixed and the other end being connected to the handrail gripper so that the spring can apply a spring force which is opposed to the direction of handrail movement to the handrail gripper when the handrail gripper moves along with the handrail and a sensor which is disposed in a way that it is distanced from the handrail gripper and can be triggered by the handrail gripper when the handrail gripper moves along with the handrail.

公开(公告)号：US10302549B2

公开(公告)日：2019-05-28

申请号：US15371487

申请日：2016-12-07

Applicant: Otis Elevator Company

Inventor： Takahiro Yamada ,  Atsushi Yamada ,  Hiromitsu Miyajima ,  Kenji Komiya

IPC: G01N19/02 ,  B66B25/00 ,  B66B31/02

Abstract: A handrail friction checking device comprises a handrail gripper for gripping the handrail and movable together with the handrail, a spring with one end of the spring being fixed and the other end being connected to the handrail gripper so that the spring can apply a spring force which is opposed to the direction of handrail movement to the handrail gripper when the handrail gripper moves along with the handrail and a sensor which is disposed in a way that it is distanced from the handrail gripper and can be triggered by the handrail gripper when the handrail gripper moves along with the handrail.