Bead chain or cord retainer

Abstract

A bead chain or cord retainer including a frame, a moving part, and an elastic member is provided. The moving part is mounted in the frame and the elastic member is disposed between the frame and the moving part. Thus the moving part is elastically moved in the frame. The moving part includes first and second moving elements integrated with or plugged into each other. A bead chain or a cord is inserted through a clipped and limited space formed by the frame and the moving part. Before the retainer being positioned on a building, the bead chain or the cord is held by the frame and the moving part which are fixed by a positioning member and unable to be pulled. After the retainer being positioned on the building, the positioning member is removed and the bead chain or the cord is drawn to open or close curtains.

What is claimed is: 
     
         1 . A bead chain or cord retainer comprising a frame, a moving part, and an elastic member;
 wherein the frame consists of a first wall, a second wall disposed opposite to the first wall, a third wall connected with a side of the first wall and a side of the second wall, a space defined by the first wall, the second wall, and the third wall and penetrating vertically, a limit rod disposed between the first wall and the second wall and across the space, and a through hole mounted to the third wall;   wherein the moving part having a first moving unit, a second moving unit, and a passage; the first moving unit is provided with a first vertical wall, a connection segment connected to a top of the first vertical wall, and an extension segment extending from a bottom of the first vertical wall toward the second moving unit; the second moving unit is a vertical wall arranged opposite to the first vertical wall and a top end of the second moving unit is connected to a side of the connection segment in an assembled manner; the passage is penetrating horizontally, defined by the first vertical wall, the second moving unit, and the connection segment, and used for allowing a bead chain or a cord to insert through; the second moving unit is provided with an installation hole; a fastener is inserted through the installation hole and the through hole to be fastened into a building; by the connection segment of the moving part aligned with the limit rod of the frame, the first vertical wall and the second moving unit are inserted and mounted in the space of the frame and a part of the passage is overlapped with the first wall and the second wall; and   wherein the elastic member is arranged between the limit rod and the extension segment for allowing the moving part to be elastically mounted in the space; thus the bead chain or the cord is able to be clipped or released by changing of an area size of the passage overlapped with the first wall and the second wall.   
     
     
         2 . The bead chain or cord retainer as claimed in  claim 1 , wherein a vertically-movable cover plate is disposed between a side of the first wall away from the third wall and a side of the second wall away from the third wall so that the cover plate is opposite to the third wall; the side of the first wall away from the third wall and the side of the second wall away from the third wall are both provided with a joining edge; the cover plate is provided with two joining steps disposed on two sides of the cover plate and joined with the two joining edges correspondingly. 
     
     
         3 . The bead chain or cord retainer as claimed in  claim 2 , wherein the side of the first wall away from the third wall and the side of the second wall away from the third wall are both respectively provided with at least one locking hole; each of the two sides of the cover plate is further respectively provided with at least one locking block, corresponding to the locking holes and able to be mounted into the locking holes correspondingly. 
     
     
         4 . The bead chain or cord retainer as claimed in  claim 3 , wherein the second moving unit is provided with a positioning hole located above the installation hole and an opening is disposed on the third wall of the frame; a positioning member is inserted through the opening to be mounted and fixed in the positioning hole for fixing the bead chain or the cord at a state of being clipped and limited by the frame and the second moving unit when the elastic member is not compressed and the moving part is at a lower position. 
     
     
         5 . The bead chain or cord retainer as claimed in  claim 4 , wherein the positioning member is composed of an insertion pin and at least one limiting piece located beside the insertion pin and provided with limiting edges; under a state that the insertion pin of the positioning member is inserted into the positioning hole of the moving part and the elastic member is not compressed so that the moving part is at the lower position, the limiting edges of two of the limiting pieces are in contact with and abutting against an upper edge of the opening to fix the bead chain or the cord at the state of being clipped and limited by the frame and the second moving unit. 
     
     
         6 . The bead chain or cord retainer as claimed in  claim 5 , wherein the limiting piece has the limiting edge with at least two abutting levels which is defined as a distance between an axis of the insertion pin and the limiting edge. 
     
     
         7 . The bead chain or cord retainer as claimed in  claim 6 , wherein a truncated conical tenon is disposed on a rear end of the insertion pin and a slot is formed from the rear end of the insertion pin along the axis of the insertion pin. 
     
     
         8 . The bead chain or cord retainer as claimed in  claim 7 , wherein a mounting slot with an opening facing downward is disposed on the connection segment and two braking slots are located beside the mounting slot; the top end of the second moving unit is provided with a projecting piece projecting upward and two braking hooks projecting upward are located beside the projecting piece; the second moving unit and the connection segment are integrally connected to form one part by the projecting piece inserted into the mounting slot and the two braking hooks inserted into and locked with the two braking slots correspondingly. 
     
     
         9 . The bead chain or cord retainer as claimed in  claim 3 , wherein a mounting slot with an opening facing downward is disposed on the connection segment and two braking slots are located beside the mounting slot; the top end of the second moving unit is provided with a projecting piece projecting upward and two braking hooks projecting upward are located beside the projecting piece; the second moving unit and the connection segment are integrally connected to form one part by the projecting piece inserted into the mounting slot and the two braking hooks inserted into and locked with the two braking slots correspondingly. 
     
     
         10 . The bead chain or cord retainer as claimed in  claim 9 , wherein a lower surface of the limit rod is provided with a bulging block projecting toward the extension segment and a bump is arranged at an upper surface of the extension segment and projecting toward the limit rod; two ends of the elastic member are mounted to the bulging block and the bump correspondingly so that the elastic member is positioned. 
     
     
         11 . The bead chain or cord retainer as claimed in  claim 1 , wherein the second moving unit is provided with a positioning hole located above the installation hole and an opening is disposed on the third wall of the frame; a positioning member is inserted through the opening to be mounted and fixed in the positioning hole for fixing the bead chain or the cord at a state of being clipped and limited by the frame and the second moving unit when the elastic member is not compressed and the moving part is at a lower position. 
     
     
         12 . The bead chain or cord retainer as claimed in  claim 1 , wherein a mounting slot with an opening facing downward is disposed on the connection segment and two braking slots are located beside the mounting slot; the top end of the second moving unit is provided with a projecting piece projecting upward and two braking hooks projecting upward are located beside the projecting piece; the second moving unit and the connection segment are integrally connected to form one part by the projecting piece inserted into the mounting slot and the two braking hooks inserted into and locked with the two braking slots correspondingly. 
     
     
         13 . A bead chain or cord retainer comprising a frame, a moving part, and an elastic member;
 wherein the frame consists of a first wall, a second wall disposed opposite to the first wall, a third wall connected with a side of the first wall and a side of the second wall, a space defined by the first wall, the second wall, and the third wall and penetrating vertically, a limit rod disposed between the first wall and the second wall and across the space, and a through hole mounted to the third wall;   wherein the moving part having a first moving unit, a second moving unit, and a passage; the first moving unit is provided with a first vertical wall, a connection segment connected to a top of the first vertical wall, and an extension segment extending from a bottom of the first vertical wall toward the second moving unit; the second moving unit is a vertical wall arranged opposite to the first vertical wall and a top end of the second moving unit is integrally connected with a side of the connection segment; the passage penetrating horizontally is defined by the first vertical wall, the second moving unit, and the connection segment and used for allowing a bead chain or a cord to insert through; the second moving unit is provided with an installation hole; a fastener is inserted through the installation hole and the through hole to be fastened into a building; by the connection segment of the moving part aligned with the limit rod of the frame, the first vertical wall and the second moving unit are inserted and mounted in the space of the frame and a part of the passage is overlapped with the first wall and the second wall; and   wherein the elastic member is arranged between the limit rod and the extension segment for allowing the moving part to be elastically mounted in the space; thus the bead chain or the cord is able to be clipped or released by changing of an area size of the passage overlapped with the first wall and the second wall.   
     
     
         14 . The bead chain or cord retainer as claimed in  claim 13 , wherein a vertically-movable cover plate is disposed between a side of the first wall away from the third wall and a side of the second wall away from the third wall so that the cover plate is opposite to the third wall; the side of the first wall away from the third wall and the side of the second wall away from the third wall are both provided with a joining edge; the cover plate is provided with two joining steps disposed on two sides of the cover plate and joined with the two joining edges correspondingly. 
     
     
         15 . The bead chain or cord retainer as claimed in  claim 14 , wherein the side of the first wall away from the third wall and the side of the second wall away from the third wall are both respectively provided with at least one locking hole; each of the two sides of the cover plate is further respectively provided with at least one locking block, corresponding to the locking holes and able to be mounted into the locking holes correspondingly. 
     
     
         16 . The bead chain or cord retainer as claimed in  claim 15 , wherein the second moving unit is provided with a positioning hole located above the installation hole and an opening is disposed on the third wall of the frame; a positioning member is inserted through the opening to be mounted and fixed in the positioning hole for fixing the bead chain or the cord at a state of being clipped and limited by the frame and the second moving unit when the elastic member is not compressed and the moving part is at a lower position. 
     
     
         17 . The bead chain or cord retainer as claimed in  claim 16 , wherein the positioning member is composed of an insertion pin and at least one limiting piece located beside the insertion pin and provided with limiting edges; under a state that the insertion pin of the positioning member is inserted into the positioning hole of the moving part and the elastic member is not compressed so that the moving part is at the lower position, the limiting edges of two of the limiting pieces are in contact with and abutting against an upper edge of the opening to fix the bead chain or the cord at the state of being clipped and limited by the frame and the second moving unit. 
     
     
         18 . The bead chain or cord retainer as claimed in  claim 17 , wherein the limiting piece has the limiting edge with at least two abutting levels which is defined as a distance between an axis of the insertion pin and the limiting edge. 
     
     
         19 . The bead chain or cord retainer as claimed in  claim 18 , wherein a truncated conical tenon is disposed on a rear end of the insertion pin and a slot is formed from the rear end of the insertion pin along the axis of the insertion pin. 
     
     
         20 . The bead chain or cord retainer as claimed in  claim 19 , wherein a lower surface of the limit rod is provided with a bulging block projecting toward the extension segment and a bump is arranged at an upper surface of the extension segment and projecting toward the limit rod; two ends of the elastic member are mounted to the bulging block and the bump correspondingly so that the elastic member is positioned.