Patent ID: 8282175
Filing Date: 2012-10-09
Classification: E05C,E05F,E05Y

Abstract:
1. An opening device ( 110 ) comprising: an elongate ejector ram ( 128 ) which is mounted so as to be longitudinally movable in or on a housing ( 118 ), wherein the ejector ram ( 128 ) is biased by a spring ( 132 ) into a position projecting out of the housing ( 118 ) and forceable back against a bias of the spring into an interior of the housing, a releasable locking device ( 140 , 140 a ) locks the ejector ram ( 128 ) in a position in which the ejector ram is retracted into the housing ( 118 ) and, a two-armed lever component ( 138 ) including a first lever arm ( 138 a ) and a second lever arm ( 138 b ) pointing substantially in opposing directions is mounted so as to be pivotable in the housing ( 118 ), that when biased the ejector ram ( 128 ) is disposed in an end region of the first lever arm ( 138 a ) and a latching component of the locking device is provided which locks the end region of the first lever arm ( 138 a ) in a pivoted position of the lever component associated with a retracted position of the ejector ram ( 128 ), and that a tensioning and stopping device ( 134 ) is coupled to an end region of the second lever arm ( 138 b ) of the lever component ( 138 ), wherein the tensioning and stopping device ( 134 ) has a rod component ( 122 ) as a tensioning element coupled to a flat slide ( 150 ) mounted displaceably in the interior of the housing, wherein the slide ( 150 ) is provided with a crank-shaped control groove ( 152 ) which extends substantially in a straight line portion over substantially a length of the slide ( 150 ) but which merges into a short end portion ( 152 a ) extending substantially at a right angle to the straight line portion, and a control projection ( 156 ) which is provided on a flat segment-shaped control disc ( 154 ) pivotably disposed in the housing ( 118 ) engages in the control groove ( 152 , 152 a ) and which, when the opening device is in a closed position, the control projection ( 156 ) is located in the short end portion of the control groove and which, when the opening device is in an opened position, the control projection ( 156 ) is moved into the straight line portion of the control groove ( 152 ) by movement transmitted by the rod component to the slide as the control disc ( 154 ) pivots, and thus enables the slide ( 150 ), which until then was retained by engagement of the control projection ( 156 ) in the short end portion, to move.