Fastpull

Abstract

A device providing a quick and easy alignment tool for installing acoustical ceiling grid for ceiling tiles and grid for drywall ceiling. The tool is especially useful in situations where space and time constraint prohibit the use of a laser or when additional alignment functions are required in addition to a laser.

1 . A ceiling grid positioning device comprising: 
 a first planar segment;    a second planar segment substantially perpendicular to said first planar segment wherein said first and second planar segments are joined along a common edge of said first and second planar segments;    a third planar segment centered on said second planar segment and extending in a direction opposite an extension of said first planar segment;    a projection extending from said second planar segment on a same side of said second planar segment as said third planar segment wherein said projection is aligned with said third planar segment, wherein said projection acts as a retainer, and wherein said first planar segment and said third planar segment are adapted to provide a friction retention when said first segment is slidably mounted between two adjacent overlapping construction materials.    
   
   
       2 . The device according to  claim 1  wherein said projection is inclined at substantially 20°.  
   
   
       3 . The device according to  claim 1  wherein each of said planar segments is constructed of plastic and the projection is adapted to retain a string when said string extends parallel to said second planar segment.  
   
   
       4 . The device according to  claim 1  wherein said building construction materials include a wall and a molding wherein said first planar segment is positioned behind said molding on said wall and said third planar segment bears against said wall in order to provide friction which holds said device in place between the molding and the wall.  
   
   
       5 . The device according to  claim 1  wherein said second planar segment constitutes a horizontal plane segment and said third planar segment constitutes a vertical plane segment and said third planar segment constitutes a vertical planar segment.  
   
   
       6 . A grid alignment tool comprising a plurality of planar elements with the first planar element extending from an edge of a second planar element and a third planar element extending from an edge of a second planar element and a third planar element extending from a surface of said second planar element wherein said third planar element has one edge in alignment with an extent of the first planar elements; 
 a projection device positioned on said surface of said second planar element and in alignment with an extent of said third planar element along said surface of said second planar element;    said device is held by friction when said first planar element is positioned between two overlapping building materials and said third planar element is positioned against one of said two building materials.    
   
   
       7 . The device according to  claim 6  when said projection functions to retain a string-like element extending parallel to said second planar element.  
   
   
       8 . The device according to  claim 6  wherein each of said planar elements and said projection are plastic.  
   
   
       9 . An alignment tool including two devices constructed according to  claim 1  whereby when each of said segment are positioned on respective opposite pairs of construction units, a string extending from each respective projection provides an accurate alignment without requiring any fastening devices.