Supporting device for signal transmitters

Abstract

The supporting device for signal transmitters includes a first flat supporting frame, which may preferably be attached in parallel to a ceiling of a tunnel, and a second flat supporting frame adapted to accommodate signal transmitters, wherein the second supporting frame is pivotally connectable to the first supporting frame at a first end of the supporting device via first connecting means, and is detachably fixable to the first supporting frame at a second end of the supporting device via second connecting means.

1 . Supporting device for signal transmitters comprising a first flat supporting frame to be attached in parallel to a ceiling of a tunnel, further comprising a second flat supporting frame suitable for accommodating signal transmitters, wherein the second supporting frame is pivotally connectable to the first supporting frame at a first end of the supporting device via first connecting means, and is detachably fixable to the first supporting frame at a second end of the supporting device via second connecting means.  
   
   
       2 . Supporting device as claimed in  claim 1 , wherein the first connecting means comprise two hooks arranged on the second supporting frame, and two bolt-shaped sections, which are arranged on the first supporting frame, wherein the hooks may pivotally encompass the bolt-shaped sections.  
   
   
       3 . Supporting device as claimed in  claim 1 , wherein the second connecting means comprise at least one bracket on the second supporting frame and at least one movable locking means on the first supporting frame for fixing the bracket.  
   
   
       4 . Supporting device as claimed in  claim 3 , wherein the bracket comprises a bolt in the area of its upper end, which can be inserted into at least one slot formed in the first supporting frame, wherein a first pivotal locking means for fixing the bracket prevents the bolt from exiting after its insertion into the slot.  
   
   
       5 . Supporting device as claimed in  claim 4 , wherein the first locking means is formed as a spring-supported locking hook having a substantially V-shaped recess into which the bolt can at the same time be inserted when moving into the slot, wherein a web of the V-shaped recess is suitable as a rest surface for the bolt.  
   
   
       6 . Supporting device as claimed in  claim 3 , wherein the bracket has a head on its upper end having tapered front end into which a first and a second edge of the head open.  
   
   
       7 . Supporting device as claimed in  claim 3 , wherein a second locking means has a roller movable obliquely with respect to vertical, upon which the first edge of the head acts during insertion of the bracket such that the roller is obliquely lifted.  
   
   
       8 . Supporting device as claimed in  claim 7 , wherein a leaf spring is arranged between the roller and a transverse rail of the first supporting frame, said leaf spring pressing the roller downwards.  
   
   
       9 . Supporting device as claimed in  claim 7 , wherein the roller in an operating state of the supporting device is located on the lower end point of its movement range, and the second edge of the head of the bracket is supported on the roller.  
   
   
       10 . Supporting device as claimed in  claim 7 , wherein the second edge substantially extends at 45° with respect to vertical.  
   
   
       11 . Supporting device as claimed in  claim 7 , wherein the roller is integrated in the first supporting frame on its ends via two bolts guided in two longitudinal holes substantially extending at 45° with respect to the vertical.