EP 0303141 B1 19910911 - SUPPORTING DEVICE FOR AN ACTUATING MECHANISM, SEALED AGAINST HIGH FREQUENCIES, FOR OPENING AND CLOSING AN ELECTROMAGNETICALLY SHIELDED COVER
Title (en)
SUPPORTING DEVICE FOR AN ACTUATING MECHANISM, SEALED AGAINST HIGH FREQUENCIES, FOR OPENING AND CLOSING AN ELECTROMAGNETICALLY SHIELDED COVER
Publication
Application
Priority
DE 3727205 A 19870814
Abstract (en)
[origin: EP0303141A1] For opening and closing an electromagnetically shielded cover (3), especially for the window and door apertures of a shielded room, considerable forces often have to be exerted because of the clamping effect of contact elements (6). An actuation assistance device for this purpose consists of a bearing bush (10) which is arranged in a receiving well (2) and in which is mounted rotatably a drive shaft (11) projecting at both ends beyond the receiving well and connecting the shielded inner room mechanically to the environment. Attached to one of the projecting ends is a cylindrical closing worm (13) with a closing thread (14) which serves for receiving and guiding a locking element preferably attached to the cover (3) and designed as a locking pin (7). For the electromagnetic sealing off of the device according to the invention, there is a sealing spring (15) which is arranged between the closing worm and the receiving well and which braces the bearing bush and closing worm relative to the drive shaft in a manner proof against high frequency. Advantageously, the sealing spring is mounted on one side in a cylindrical recess (24) located in the closing worm. <IMAGE>
IPC 1-7
IPC 8 full level
E05B 17/00 (2006.01); H05K 9/00 (2006.01)
CPC (source: EP)
E05B 17/0025 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0303141 A1 19890215; EP 0303141 B1 19910911; AT E67269 T1 19910915; DE 3864774 D1 19911017
DOCDB simple family (application)
EP 88112463 A 19880801; AT 88112463 T 19880801; DE 3864774 T 19880801