Ceiling structure with increased workability and space utilization and its construction method

Abstract

The present invention relates to a functional ceiling coupling structure and its construction method. For this purpose, the ceiling coupling structure of the present invention includes a ceiling member; a fully threaded bolt, a top end of which is fixed to the ceiling member; and a carrying bar fixture coupled to a bottom end of the fully threaded bolt in order to accommodate a carrying bar. A height adjustable member having screw threads formed around an inner circumference of the height adjustable member is coupled to a lower part of the fully threaded bolt, and the carrying bar fixture is coupled to the height adjustable member, so as to adjust a relative height of the carrying bar fixture. As a result, the height of the carrying bar can be flexibly adjusted to thus achieve efficient construction of the ceiling structure.

1 . A ceiling structure with increased workability and space utilization, comprising:
 a ceiling member;   a fully threaded bolt, a top end of which is fixed to the ceiling member; and   a carrying bar fixture coupled to a bottom end of the fully threaded bolt in order to accommodate a carrying bar, wherein:
 a height adjustable member having screw threads formed around an inner circumference of the height adjustable member is coupled to a lower part of the fully threaded bolt, and 
   the carrying bar fixture is coupled to the height adjustable member, thereby enabling adjustment of a relative height of the carrying bar fixture.   
     
     
         2 . The ceiling structure according to  claim 1 , wherein the carrying bar fixture includes at least one side wall between a top flange and a bottom flange to form a space for receiving the carrying bar by the top and bottom flanges and as well as the side wall. 
     
     
         3 . The ceiling structure according to  claim 2 , wherein:
 the top flange or the bottom flange of the carrying bar fixture includes a circular thru-hole for the height adjustable member and for the height adjustable member in a circular form passing through the thru-hole, and   a shoulder flange is formed and engaged around an outer periphery of the height adjustable member to allow rotation in relation to the carrying bar fixture, thereby adjusting the height.   
     
     
         4 . The ceiling structure according to  claim 3 , wherein:
 the bottom flange includes a holding flange to accommodate the carry bar and a coupling flange for coupling the height adjustable member about the side wall, and   the coupling flange and the holding flange are placed at different relative heights such that the shoulder flange of the height adjustable member ( 30 ) does not protrude from the bottom of the holding flange.   
     
     
         5 . The ceiling structure according to  claim 3 , wherein an escape-preventing member is provided between an inner face of the side wall of the carrying bar fixture and an outer diameter of the shoulder flange, so as to prevent relative rotation of the carrying bar fixture and the height adjustable member. 
     
     
         6 . The ceiling structure according to  claim 5 , further comprising a rotation-preventing member having an insert piece which is integrally formed on the bottom of a ⊏-shaped guide piece and covers a lateral face of the shoulder flange, thereby guiding the height adjustable member into the carrying bar fixture, wherein:
 the guide piece is placed between the top flange of the carrying bar fixture and a top surface of the shoulder flange, and 
 the insert piece is placed between an inner face of the side wall of the carrying bar fixture and the lateral face of the shoulder flange. 
 
     
     
         7 . The ceiling structure according to  claim 6 , wherein:
 the shoulder flange has a regular polygon form including a larger diameter part and a smaller diameter part, and   a thickness of the insert piece or the rotation-preventing part of the rotation-preventing member is larger than a difference between a distance from the center of the shoulder flange to the inner face of the side wall and a length of the larger diameter part but is smaller than a difference between the above distance and a length of the smaller diameter part.   
     
     
         8 . The ceiling structure according to  claim 5 , further comprising a rotation-preventing member having a clip piece that includes:
 a guide groove for inserting the top flange or the bottom flange of the carrying bar fixture; and   a shoulder part and a rotation-preventing part, which are formed above and under the guide groove, respectively, wherein:
 the shoulder part is engaged on a top surface of the top flange of the carrying bar fixture, and 
 the rotation-preventing part is placed between the inner face of the side wall of the carrying bar fixture and the lateral face of the shoulder flange. 
   
     
     
         9 . The ceiling structure according to  claim 8 , wherein:
 the shoulder flange has a regular polygon form including a larger diameter part and a smaller diameter part, and   a thickness of the insert piece or the rotation-preventing part of the rotation-preventing member is larger than a difference between a distance from the center of the shoulder flange to the inner face of the side wall and a length of the larger diameter part but is smaller than a difference between the above distance and a length of the smaller diameter part.   
     
     
         10 . The ceiling structure according to  claim 2 , wherein:
 any one side wall formed in the carrying bar fixture has a shoulder side wall part with only a height sufficient to prevent escape of the carrying bar, and   the top flange has a slit so that a blocking piece is removably inserted into the slit in order to shield an opening part on top of the shoulder side wall part.   
     
     
         11 . The ceiling structure according to  claim 1 , further comprising an elastic compression piece fitted between the fully threaded bolt and the height adjustable member, so that rotation of the height adjustable member is prevented by a pressure of the elastic compression piece. 
     
     
         12 . The ceiling structure according to  claim 11 , wherein the elastic compression piece has a curved insertion part integrally formed at one side thereof. 
     
     
         13 . A construction method of a ceiling structure with increased workability and space utilization, comprising:
 providing a height adjustable member which passes through a thru-hole for the height adjustable member formed on a carrying bar fixture;   providing a carrying bar which passes through a plurality of carrying bar fixtures, wherein each of the carrying bar fixtures receives each of the height adjustable members;   provisionally coupling the height adjustable member to a lower part of a fully threaded bolt pre-fixed to a ceiling member; and   finely adjusting the height adjustable member to place the carrying bar fixture in a normal position thereof.