Biugyan Wu,Daniela Della Ducata,Galina Obmolova,Jinquan Luo,Juan Carlos Almagro,Mark Rutz,Merle Elloso,Michael Naso,Raymond Sweet,Robert Rauchenberger,Sheng-Jiun WU,Susann Taudte,Thomas Malia
申请号：
BR112012010280
公开号：
BR112012010280A2
申请日:
2010.10.29
申请国别(地区):
BR
年份:
2017
代理人:
摘要：
door locking device and parts kit. a door closing device comprising: (a) a housing for installation in a door, the housing having a mounting plate with an opening adjacent a center hole of the housing； (b) a tension member extending out of the housing through the opening to define an end thereof for fitting to a door frame； (c) a movable body within the housing and adapted for longitudinal movement within the central bore, the movable body being connected to the tension member； (d) a spring within the housing and urging the movable body in a first direction opposite the mounting plate so as to press the tension member into the housing in a door closing movement； (e) a hydraulic assembly for hydraulically controlling the longitudinal movement of the movable body, the hydraulic assembly being disposed within the central bore of the housing； wherein the hydraulic assembly comprises a piston coupled to the housing and slidable in a two-chamber chamber, and the post comprises a valve mechanism that opens to allow relatively free movement of fluid from one compartment to another when the movable body is moved in relative to the piston in a second direction, opposite the first direction, in response to the movement of the tension member out of the housing, but closes to the present resistance to movement of the movable body in the first direction, where the piston valve mechanism comprises a protrusion made on a piston shaft and an annular sealing face defined, a longitudinally extending channel member integral with the protrusion, the channel member having at least one longitudinal channel thereon, terminating at a close but spaced closed end of the annular sealing face, an annular sealing member placed around the cane member 1, the annular sealing member being arranged for longitudinal sliding movement over the channel member between sealed and unsealed positions, the at least one longitudinal channel extending between opposite sides of the annular sealing member, the se
