EP 0117396 B1 19860820 - SECURITY SWITCH WITH AN UN AUTHORISED-CLOSURE PROVISION
Title (en)
SECURITY SWITCH WITH AN UN AUTHORISED-CLOSURE PROVISION
Publication
Application
Priority
DE 3302631 A 19830127
Abstract (en)
[origin: EP0117396A1] 1. Security switch with an unauthorised-closure provision, which comprises a switch housing (3) with a switch enclosed by the latter, a plunger (20) guided by the wall of the switch housing, and a control roller (8 ; 108) which is connected in an articulated manner to the plunger via toggle levers (7 ; 107) and is arranged pivotably on a shaft (6 ; 106) in a control housing (4), and which has on its periphery a sector-like recess (28), into which an actuating bar (2 ; 102) assigned to the control housing and inserted through a slot (13, 130) in the control housing (4) can engage by means of its front free end designed as a crossmember (14 ; 114) in front of an aperture (15), in order rotate the control roller, characterized in that the control roller (8 ; 108) has assigned to it at least one freely pivotable detent disc (21 ; 121) which, at its end projecting into the slot (13 ; 130) in the control housing (4), has a radially projecting control nose (27 ; 127) and also a cam slot (22, 24, 25 ; 122, 124, 125, 128) for receiving an axle (19 ; 119) connecting the plunger (20) of the switch to the toggle levers (7 ; 107) in an articulated manner, the cam slot comprising a shorter slot part (22 ; 122) which, in the initial position of the detent disc (21 ; 121), receives the axle (19 ; 119) and which retains it before the contacts of the switch are closed, and a longer slot part (25 ; 125) which is connected to the said shorter slot part (22 ; 12) by means of a middle guide part (24 ; 124) and, in the working position of the detent disc (21 ; 121), receives the axle (19 ; 119), and which allows it to move further under the effect of the control roller (8 ; 108) until the contacts of the switch are closed, and the actuating bar (2 ; 102) having, at its free end, a projection (10 ; 110) which is assigned to the detent disc (21 ; 121) and, when the actuating bar (2 ; 102) is introduced into the slot (13 ; 130) in the control housing (4), comes up against the control nose (27 ; 127) of the associated detent disc (21 ; 121) and, during further introduction, pivots the detent disc out of the initial position into the working position.
IPC 1-7
IPC 8 full level
H01H 27/00 (2006.01)
CPC (source: EP)
H01H 27/002 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
DE 3302631 A1 19840802; DE 3302631 C2 19850207; DE 3460481 D1 19860925; EP 0117396 A1 19840905; EP 0117396 B1 19860820
DOCDB simple family (application)
DE 3302631 A 19830127; DE 3460481 T 19840112; EP 84100259 A 19840112