Bed side guard rail

Claim 1

BED SIDE GUARD RAILS, A BED HAVING A PAIR OF SIDE RAILS WITH INWARDLY DIRECTED TOP FLANGES, SAID SIDE WALLS DEFINING SUBSTANTIALLY THE MAXIMUM WIDTH OF THE BED, A SEPARATE MATTRESS SUPPORT OF MOVABLE SECTIONS INCLUDING A MOVABLE SEAT SECTION, ALL OF SAID SECTIONS BEING SUPPORTED AS A UNIT ON SAID SIDE RAILS AND MOVABLE WITHIN THE LIMITS OF SAID SIDE RAILS, A PAIR OF SIDE GUARD RAILS ONE AT EITHER SIDE OF THE BED AND EACH OF SAID GUARD RAILS COMPRISING A FIRST TUBULAR U-SHAPED MEMBER A SECOND TUBULAR U-SHAPED PORTION OF SLIGHTLY SMALLER DIAMETER SLIDABLY MOUNTED WITHIN THE LEGS OF THE FIRST U-SHAPED MEMBER AT THE OPEN ENDS THEREOF, PARALLEL SPACER MEMBERS SECURED BETWEEN THE LEGS OF SAID FIRST U-SHAPED MEMBER TO FORM A RIGID STRUCTURE, SPACED MOUNTING SUPPORTS THE TOP END OF EACH BEING PIVOTALLY MOUNTED ON THE SPACER MEMBERS OF SAID GUARD AND THE LOWER OTHER END OF EACH BEING PERMANENTLY AND PIVOTALLY MOUNTED ON THE MOVABLE MATTRESS SUPPORT, SAID MOUNTING SUPPORTS MOVING IN A VERTICAL PLANE BETWEEN SAID MATTRESS SUPPORT AND SAID SIDE RAILS SO THAT THE SIDE GUARD RAILS DO NOT EXTEND BEYOND THE WIDTH OF THE BED AT ANY TIME AND RELEASABLE LOCKING MEANS ON SAID MOVABLE MATTRESS SUPPORT FOR RETAINING THE BED SIDE GUARD RAILS IN THE VERTICAL OPERATIVE POSITION.