Releasable mounting apparatus

Abstract

Apparatus for releasably mounting an article in a blind opening in a wall. The apparatus comprises: a body having a base for attachment to an article to be mounted in a wall opening; a member supported on the body and spaced from the base; an arm mounted on the member and moveable from an inoperative position to an operative position projecting to one side of the body for bearing against a surrounding wall surface; and a mechanism for releasably securing the arm in the inoperative position.

1 . Apparatus for releasably mounting an article in a blind opening in a wall, comprising: 
 a body having a base for attachment to an article to be mounted in a wall opening; a member supported on the body and spaced from the base;    an arm mounted on the member and with a portion moveable from an inoperative position, substantially aligned with the body to an operative position, substantially spaced from and projecting to one side of the body for bearing against a surrounding wall surface; and    a mechanism for releasably securing the arm in the inoperative position.    
     
     
         2 . Apparatus according to  claim 1 , wherein the mechanism has a positive engaging action.  
     
     
         3 . Apparatus according to  claim 2 , wherein the mechanism has a snap-fit action.  
     
     
         4 . Apparatus according to  claim 1 , wherein the member comprises a carriage which is moveable along a notional line extending between the base and the member, the carriage being moveable between a first position furthest from the base and a second position closer to the base, with the arm being configured to move from the operative position to the inoperative position in dependence upon the position of the carriage along the notional line.  
     
     
         5 . Apparatus according to  claim 4 , wherein the arm is configured to move from the operative position to the inoperative position as the carriage moves from the second position to the first position.  
     
     
         6 . Apparatus according to  claim 4 , wherein the mechanism is configured to engage at least one of the arm and the carriage.  
     
     
         7 . Apparatus according to  claim 4 , wherein the carriage is mounted on a rotatable shaft housed by the body, the carriage and the rotatable shaft having inter-engaging threaded profiles, the rotatable shaft being constrained to rotate within the body, with shaft rotation producing linear movement of the carriage relative to the body between the first and second positions.  
     
     
         8 . Apparatus according to  claim 1 , wherein the arm is resiliently biased to adopt the operative position when possible.  
     
     
         9 . Apparatus according to  claim 1 , wherein the arm further comprises a resilient part for mechanically decoupling the arm from a surrounding wall surface.  
     
     
         10 . Apparatus according to  claim 1 , wherein the arm is configured to pivot between the inoperative and operative positions about an axis which is substantially perpendicular to a notional line extending between the base and member.  
     
     
         11 . A loudspeaker assembly configured to be releasably mounted in a blind opening in a wall, comprising: 
 a body for housing a loudspeaker drive unit, the body having a base which in use is configured to engage a surrounding wall external surface;    a member supported on the body and spaced from the base;    an arm mounted on the member and with a portion moveable from an inoperative position substantially aligned with the body to an operative position substantially spaced from and projecting to one side of the body for bearing against a surrounding wall internal surface; and    a mechanism for releasably securing the arm in the inoperative position.