Abstract:
Ornamental lamp strings in a network structure, having a main power-supply cable and a plurality of lamp strings. The plurality of lamp strings all have the same length and the same number of sockets spaced apart a common distance. The odd-numbered sockets of one lamp string are connected to the even-numbered sockets of an adjacent lamp string by a knitting cord without copper wire so as to have all the lamp strings knitted into a network.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a Christmas ornamental lamp, and particularly to a network knitted with a plurality of lamp strings. 
     2. Description of the Prior Art 
     In the conventional lamp strings for Christmas ornament, the ornament usually comprises an independent power-supply wire connected, in series, with a plurality of sockets, and the last socket on the tail end thereof is connected with an independent wire. Two independent power-supply wires are then twisted together to form into a lamp string; all the sockets in one lamp string are mounted with bulbs respectively so as to form into a lamp string for Christmas ornament. 
     The conventional lamp string for Christmas ornament can also be mounted on a wall surface or a wide plane; as shown in FIG. 7, a plurality of lamp strings are connected with and under a main power-supply cable. The two independent power-supply wires of every lamp string are not twisted; the sockets of two adjacent lamp strings are arranged in intersection shape. The independent power-supply wire of one lamp string and the sockets of another lamp string are held together by means of a clasper so as to knit all the lamps into a network of ornament; the aforesaid prior art is published in U.S. Pat. No. 5,775,802; the independent power-supply wires of the prior art are hung under the main power-supply cable; the number of strands of the power-supply wire and the diameter thereof have been increased properly so as to withstand pulling unintentionally. 
     In another conventional network of ornamental lamp strings as shown in FIG.  8 , it comprises a plurality of twisted lamp strings to be connected with a main power-supply cable; all the lamp strings are hung under the main power-supply, and the sockets of two adjacent lamp strings are arranged in intersection shape, and then the sockets of one lamp string and the power-supply wire of an adjacent lamp string are fastened together by means of claspers so as to form into a network of ornamental lamp strings; finally, a socket on the tail end of every two adjacent lamp strings will be unable to hold stably as a result of the intersection arrangement, and that socket is subject to swaying in the wind. 
     SUMMARY OF THE INVENTION 
     The prime object of the present invention is to provide a network of ornamental lamp strings, in which the main power-supply cable is connected with several lamp strings on one side thereof; all the lamp strings have the same length and the same number of sockets arranged at a regular distance. The sockets between two adjacent lamp strings are connected together by means of a knitting cord so as to knit all the lamp strings into a network of ornamental lamp strings. 
     Another object of the present invention is to provide a network of ornamental lamp strings, in which every lamp string in the network is knitted with a knitting cord, and then all the sockets of the lamp strings are arranged in a regular order, and the edge thereof is knitted with a knitting cord without copper wire to form into an edge of the network so as to facilitate the same to be hung in place. 
     Still another object of the present invention is to provide a network of ornamental lamp strings, in which every lamp string is twisted with two power-supply wires, and the tension force of every lamp string is within a safety limit; after the lamp strings are knitted into a network, the tension force of each lamp string will not be affected. 
     A further object of the present invention is to provide a network of ornamental lamp strings, in which all the lamp strings have the same length, and are connected to one side of the main power-supply cable; all the lamp strings are knitted into a network of ornamental lamp strings, and such a network is simple and easy in terms of mounting in place. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a plan view of the present invention, showing a network formed with a given number of lamp strings. 
     FIG. 2 is a perspective view of the present invention, showing a main power-supply cable mounted with a given number of connectors which are used for plugging a given number of lamp strings so as to form into a network. 
     FIG. 3 is a perspective view of the present invention, showing the first lamp string being mounted on a knitting cord. 
     FIG. 4 is a perspective view of the present invention, showing a main power-supply cable connected with a plurality of lamp strings to form into a network. 
     FIG. 5 is a perspective view of the present invention, showing the sockets connected with the knitting cord by means of holding rings respectively. 
     FIG. 6 is a perspective view of the present invention, showing the side part of socket having a clipping groove to hold a knitting cord. 
     FIG. 7 shows a fragmental portion of a conventional network formed with ornamental lamp strings. 
     FIG. 8 shows another fragmental portion of a conventional network formed with ornamental lamp strings. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIGS. 1 and 2, the present invention relates to a network  11  of ornamental lamp strings, and it comprises a main power-supply cable  13  and a plurality of lamp strings  12 ; the lamp strings are knitted into a network by means of knitting cords  19  without copper wire; one side of the main power-supply cable  13  is connected with several lamp strings  12  having same length; every lamp string  12  is mounted with the same number of sockets  14  to be arranged at a regular distance one another. Every two adjacent lamp strings  12  are connected together with a knitting cord  19  without copper wire from the first socket of the outer lamp string. On a working bench, the sockets of every two adjacent lamp strings  12  are connected into a network  11  by means of knitting cords  19  without copper wire from the first socket of the outer lamp string. On a working bench, the sockets of every two adjacent lamp strings  12  are connected into a network  11  by means of knitting cords  19 . 
     Referring to FIGS. 1 to  5 , the main power-supply cable  13  of the network  11  comprises at least two power-supply wires twisted together. One side of the main power-supply cable  13  is connected with several lamp strings  12 . Every lamp string  12  includes two independent power-supply wires  18 , of which one power-supply wire connects with a plurality of sockets  14  in series and at a regular distance one another; then, the two power-supply wires are twisted together to form into one independent lamp string  12 . Several lamp strings  12 , at the same length, are connected with the main power-supply cable  13 , and every lamp string  12  includes the same number of sockets  14  arranged at a regular distance. When the main power-supply cable  13  is hung in place, every lamp string  12  will be hung vertically under the main power-supply cable  13 ; the lower ends of all the lamp strings  12  will be at the same level, and the same is true of the sockets  14  thereof. 
     Referring to FIG. 2, the main power-supply cable  13  of the network  11  is connected with several connecting wires  16 , of which each is connected with a connector  25 . One end of each power-supply wire of each lamp string  12  is connected with a connector  26 ; every lamp string  12  includes the same number of sockets  14  to be arranged at a regular distance. All the lamp strings have the same length; after the lamp strings are connected with the main power-supply cable  13  by means of plugging members  26  and the connector, the main power-supply cable  13  can be hung in place and all the lamp strings  12  will be hung under the main power-supply cable  13 . As shown in FIG. 4, the main power-supply cable  13  is connected with several lamp strings  12  having the same length. The connecting point between the main power-supply cable  13  and the lamp string  12  is wound around with a tying string  21  to fasten the aforesaid two. 
     Every socket  14  in each lamp string  12  is mounted with a holding ring  17  on a rectangular base  20 , and simultaneously the power-supply wires  18  are put in a clipping groove  24  on one side of the rectangular base  20 , while a knitting cord  19  without copper wire is inserted in a clipping groove  23  on other side of the holding ring  17 . After the holding ring  17  is fastened to the rectangular base  20  of the socket  14 , the knitting cord  19  without copper wire will hold the sockets  14  of the two adjacent lamp strings  12  together. 
     The knitting cord  19  is made of plastic threads without copper wire; as shown in FIGS. 2 and 3, the socket  14 A of the first lamp string  12 A under the main power-supply cable  13  is mounted with a holding ring  17  for holding a knitting cord  19  in the clipping groove  23 A of the socket  14 A; then, the knitting cord  19  is directed to the second socket  14 B of the second lamp string  12 B at a diagonal angle; likewise, the knitting cord  19  will be held in the clipping groove  23 B of the socket  14 B by means of a holding ring  17 B; then, the knitting cord  19  is directed to the third socket  14 C of the first lamp string  12 A, and is fixed in the clipping groove  23 A of the third socket  14 C. By the same way, the first and second lamp strings  12 A and  12 B will be knitted together; then, the knitting cord  19  is directed to the top of the third lamp string  12 C from the second lamp string  12 B to have the sockets of the second and third lamp strings  12 B and  12 C knitted together diagonally. After all the lamp strings  12  connected with the main power-supply cable  13  are knitted together, the knitting cord  19  will be laid along the outer edge of the network  11  as a mounting cord  28  for the main power-supply cable  13  and the lamp strings  12 . 
     As shown in FIG. 6, both sides of the socket  14  of the lamp string  12  are furnished with two fastening rings  22  respectively; the fastening ring  22  is formed as a short cylinder, and one side thereof has a fastening groove  27  to facilitate a single power-supply wire to press therein. The main power-supply cable  13  is connected with a plurality of lamp strings  12 ; both sides of every socket  14  of the lamp strings  12  have two fastening grooves  27 . Before a network  11  is completed, a power-supply wire  18  of a lamp string  12  should be fastened into a fastening groove  27 A on one side first, while the fastening groove  27 B on the other side thereof is used for receiving the knitting cord  19  without copper wire; the knitting cord  19  is directed from the first socket of the first lamp string to pass through the fastening groove  27 B and then to pass through the rest grooves by following the same method as the aforesaid holding ring  17  does; then, the knitting cord  19  will knit all the sockets of every lamp strings  12  into a network  11  which can be mounted on a wall surface or a wide plane for ornament purpose. 
     According to the aforesaid description of the embodiment of the present invention, it is apparent that the main power-supply cable  13  of the network is connected with a plurality of lamp strings  12  having an equal length one another, and the sockets  14  of every lamp string  12  are connected together in series at a regular distance one another; two sockets  14  between two adjacent lamp strings are connected by means of a knitting cord  19  without copper wires, which passes only through a holding ring  17  or a fastening ring; then, all the lamp strings will be knitted into a network  11  of ornamental lamps. The edge of the network  11  is attached with a mounting cord  28  to facilitate the network  11  to hang in a place as desired for ornamental purpose.