Rope light with A #-shaped core

#The present invention relates to a rope light, and more particularly to a rope light having a #-sectioned long core and a plurality of staggered bulbs radially inserted into the core to form a plurality of parallelly extended bulb strings on the core, enabling the rope light to have intensified illuminance.

#FIGS. 1 and 2 show two types of conventional rope lights. The first type of the conventional rope light includes a plurality of bulbs 10 that are serially connected to one another by sequentially connecting lead wires 101 of two adjacent bulbs 10 together to form a bulb string, which is then set in a long core tube 20 to extend in parallel with the core tube 20. Lead wires 101 of a first and a last bulb 10 in the bulb string are respectively connected to a positive and a negative conductor 201, 202 pre-embedded in the core tube 20 to form a close circuit on the rope light, as shown in FIG. 1.

#The second type of the conventional rope light includes a long core tube 20a having one positive conductor 201 and two negative conductors 202 pre-embedded therein, and two bulb strings formed from a plurality of groups of serially connected bulbs 10 parallelly set in the core tube 20 at the same time. Lead wires 101 of a first and a last bulb 10 in each of the two bulb strings are respectively connected to the positive conductor 201 and one of the two negative conductors 202, so that two close circuits are formed for the rope light, as shown in FIGS. 2 and 3. It is to be noted the bulb groups 10 on the two bulb strings are staggered in the core tube 20a, as shown in FIG. 2, and lead wires 101 connected between two adjacent bulb groups 10 in the same one bulb string are covered with insulated sleeves 102, so as to ensure that lead wires 101 on the two bulb strings would not contact with one another to cause a short circuit.

#Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

#The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, wherein:

#FIG. 1 is an exploded perspective view of a conventional rope light having one single bulb string formed from serially connected bulbs;

#Please refer to FIGS. 4 and 5 that are assembled and partially exploded perspective views, respectively, of a rope light according to the present invention. As shown, the rope light mainly includes an outer tube 1, an elongate core 2, and two bulb strings 3. Bulbs 31 on the bulb strings 3 are sequentially implanted on the elongate core 2. After all the bulbs 31 have been implanted, the elongate core 2 with the bulb strings 3 is put into and enclosed in the outer tube 1 that is made of a transparent PVC material. Since the outer tube 1 is a conventional member, it is not discussed in details herein.

#The elongate core 2 is made of a transparent PVC material and has a cross section similar to the symbol “#”. Two or three conductors 21 are pre-embedded in the #-sectioned core 2 at spaced positions when the core 2 is formed through drawing. The #-sectioned core 2 defines four circumferentially spaced channels 22 to axially extend a full length of the core 2. Two adjacent ones of the four channels 22 are selected and provided at bottom surfaces with an axially extended groove 221 each, and a plurality of radially extended implant holes 23 are staggered in the two selected channels 22, such that each of the two grooves 221 extends through outer ends of every implant holes 23 provided in the same channel 22.

#Each of the two bulb strings 3 includes a plurality of bulbs 31 or light-emitting diodes (LED) as a light source thereof. Each of the bulbs 31 has two lead wires 311 extended from a bottom thereof. Any two adjacent bulbs 31 in the same bulb string 3 are serially connected with a reflective holding terminal 32 that connects one lead wire 311 of a precedent bulb 31 and one lead wire 311 of a following bulb 31 together.