Locking device for linear actuators

Details Locking device for linear actuators Locking device for linear actuators

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 15/26 (2006.01)

Patent

CA 2575183

The invention relates to a locking mechanism for linear actuators, especially fluid-actuated adjusting devices, with a piston rod (10) that is mounted so as to be movable in an axial direction relative to a receiving device (30). The aim of the invention is to create a locking mechanism for linear actuators by means of which locking is possible along the entire travel path of the linear actuators. Said aim is achieved by the fact that the piston rod (10) comprises a hollow space (11) which extends in an axial direction and within which form- fitting devices (12) are disposed so as to be distributed in said axial direction while form-fitting elements (22) which correspond to the form- fitting devices (12) and are mounted so as to be axially stationary relative to the receiving device (30) are arranged inside the piston rod (10) in a radially movable manner. Furthermore, an actuating device (40) which radially displaces the form-fitting elements (22) is allocated to the form-fitting elements (22).

L'invention concerne un dispositif de verrouillage destiné à des actionneurs linéaires, notamment à des dispositifs de réglage actionnés par fluide, et comprenant une bielle (10) logée de manière déplaçable axialement par rapport à un logement (30). L'invention vise à proposer un dispositif de verrouillage pour des actionneurs linéaires qui permette un verrouillage sûr sur toute la course des actionneurs linéaires. A cet effet, la bielle (10) présente une cavité (11) qui s'étend en sens axial et dans laquelle des dispositifs à liaison de forme (12) sont répartis en sens axial. Des éléments à liaison de forme (22), correspondant aux dispositifs à liaison de forme (12) et logés fixes axialement par rapport au logement (30), sont placés dans la bielle de manière à pouvoir être déplacés radialement. Un dispositif d'actionnement (40), qui déplace radialement les éléments à liaison de forme (22), est affecté aux éléments à liaison de forme (22).

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