公开(公告)号：WO1981003715A1

公开(公告)日：1981-12-24

申请号：PCT/FR1981000072

申请日：1981-06-10

Applicant: FAIVELEY SA ,  GEORGELIN A

Inventor： FAIVELEY SA

IPC: H01H35/10

CPC classification number: H01H35/10 ,  E05F15/41 ,  E05F15/603 ,  E05Y2201/242 ,  E05Y2400/445 ,  E05Y2400/564 ,  E05Y2800/748 ,  E05Y2900/106 ,  H02K11/23

Abstract: The device is intended to cut-off automatically the electric power supply of a motor (4), when the latter is rotatingly blocked by a mechanical resistance. This device comprises balls (5) which become rotatingly integral with the motor (4) and which are movable under the effect the centrifugal force generated during the rotation of the motor, the balls (5) cooperating with an electric contact (9) to switch on the electric power supply of the motor (4) when said centrifugal force reaches a certain threshold and to switch-off said power supply when the centrifugal force drops under the mechanical resistance opposed to the motor torque. Application particularly to automatic control devices for the opening and closing of garage doors.

Abstract translation: 该装置旨在当电机（4）被机械阻力旋转地阻挡时，自动切断电动机（4）的电力供应。 该装置包括与电动机（4）旋转一体的球（5），并且能够在电动机旋转期间产生的离心力作用下移动，球（5）与电触头（9）配合以切换 当所述离心力达到一定阈值时所述电动机（4）的电力供应，并且当所述离心力在与所述电动机转矩相反的机械阻力下降时，关闭所述电源。 特别适用于车库门打开和关闭的自动控制装置。