Compact electromechanical activation system for a lift safety device
An activation system having a fixed protective plate ( 10 ) in which there are fixed drive means based on a reset coil ( 1 ) and a holding coil ( 2 ) and release means arranged in alignment, a mobile wedging means activated by the drive means, and wherein these mobile wedging means are arranged in parallel with respect to the drive means, one or two wedging rollers ( 6 ) according to if said roller is for a one-way safety gear system or for a two-way safety gear system, respectively. A compact system that can be adapted to the existing safety gear is achieved, wherein electromechanical drive is executed vertically, which saves in additional levers, susceptibility to failure is lower and the reset and holding coils are smaller.
1 . An electromechanical activation system for a safety gear of an elevator, comprising:
a fixed protective plate ( 10 ) comprising fixed drive means;
mobile wedging means activated by the drive means, and wherein the mobile wedging means are arranged in parallel with respect to the drive means;
one wedging rollers ( 6 ) for a one-way safety gear system,
characterized in that the drive means fixed in the fixed protective plate ( 10 ) comprises a reset coil ( 1 ) and a holding coil ( 2 ) and release means aligned,
the fixed protective plate ( 10 ) is provided with a double bend defining an upper part and a lower part, such that the reset coil ( 1 ) and the holding coil ( 2 ) are fixed in the upper part aligned and separated from one another, with an activation spring ( 8 ) being arranged on the holding coil ( 2 ), such that when the holding coil ( 2 ) is released, the activation spring moves vertically;
the mobile wedging means consist of a mobile protective plate ( 13 ) placed in a parallel arrangement with respect to the lower part of the fixed protective plate ( 10 ), wherein said mobile protective plate ( 13 ) has an upper bend which defines a horizontal surface ( 19 ), this horizontal surface being housed between the space defined by the reset coil and the holding coil, whereas a vertical segment has an elongated hole ( 16 );
the wedging roller ( 6 ) is arranged in the lower part of the fixed protective plate ( 10 ), wherein said wedging roller has a guiding shaft ( 17 ) emerging through a guiding groove made in the fixed protective plate;
wherein the electromechanical activation system further comprises guiding means of the mobile protective plate ( 13 ) with respect to the fixed protective plate ( 10 ) for the vertical movement of the mobile protective plate with respect to the fixed protective plate.
2 . The electromechanical activation system for the safety gear of an elevator according to claim 1 , characterized in that the guiding means for the vertical movement of the mobile protective plate ( 13 ) with respect to the fixed protective plate ( 10 ) comprise three guiding pins ( 11 ) arranged in the fixed protective plate ( 10 ), whereas in the mobile protective plate there is a first guiding groove ( 14 ) through which a guiding pin ( 11 ) runs and a second guiding groove ( 15 ) through which two guiding pins ( 11 ) run, said guiding grooves ( 14 ) and ( 15 ) having a vertical arrangement for the vertical movement of the mobile protective plate ( 13 ).
3 . The electromechanical activation system for the safety gear of an elevator according to claim 1 , characterized in that the elongated hole ( 16 ) of the mobile protective plate ( 13 ) has a trapezoid shape.