Patent Publication Number: US-2013242537-A1

Title: Bulb mounting fixture

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2012-55220 filed on Mar. 13, 2012, the entire contents of which are incorporated herein by reference. 
     BACKGROUND 
     1. Technical Field 
     The present disclosure relates to a bulb mounting fixture. 
     2. Related Art 
     An electrical bulb includes a cap which is generally inserted directly into a power socket fixed to a wall surface or a ceiling, thereby being mounted on the wall surface or the ceiling. A mounting position and/or a direction of the bulb cannot be adjusted when the power socket is fixed to the wall surface or the ceiling. Japanese Patent Application Publication No. JP-A-2011-108608 discloses a bulb mounting fixture which has two ends and includes a plug which is mounted on one end thereof and is connectable to an electrical outlet fixed to a ceiling and an illumination shade which is mounted on the other end thereof and has an incorporated bulb socket. According to the disclosed bulb mounting fixture, when the plug is connected to a ceiling outlet on the ceiling, the bulb attached to the bulb socket in the shade can be hung on the outlet on the ceiling. 
     The bulb hung down from the bulb mounting fixture of the above-described type is directed only directly downward, and the direction of the bulb is unadjustable. Furthermore, a height position of the bulb depends upon the length of a cord and cannot be adjusted. 
     SUMMARY 
     Therefore, an object of the disclosure is to provide a bulb mounting fixture which can adjust the mounting position and the direction of the bulb. 
     The present disclosure provides a bulb mounting fixture comprising a bulb socket to which a cap of an electrical bulb is attachable and a plug connectable to an electrical outlet. In the fixture, the bulb socket and the plug are configured to be connected to each other by a ball joint. 
     The plug is inserted into the electrical outlet thereby to be connected to the electrical outlet. An electrical bulb is then attached to the bulb socket in use. According to the above-described configuration, the bulb socket and the plug are connected to each other by the ball joint. Consequently, the bulb attached to the bulb socket can be adjusted to any direction. 
     The disclosure also provides a bulb mounting fixture comprising a bulb socket to which a cap of an electrical bulb is attachable and a cap attachable to a power socket. In the fixture, the bulb socket and the cap are configured to be connected to each other by a ball joint. 
     The cap is screwed into the power socket fixed to the ceiling or the wall surface thereby to be connected to the power outlet. An electrical bulb is then attached to the bulb socket in use. According to the above-described configuration, the bulb socket and the cap are connected to each other by the ball joint. Consequently, the bulb attached to the bulb socket can be adjusted to any direction. 
     The disclosure further provides a bulb mounting fixture comprising a bulb socket to which a cap of an electrical bulb is attachable, a plug connectable to an electrical outlet, and a joint piece. In the fixture, the bulb socket has a bottom formed with either a first male joint having a substantially spherical head and a through hole extending through a central part of the head or a first female joint having a substantially semispherical hollow portion and a through hole communicating with the hollow portion. The plug has a bottom formed with either the first female joint or the first male joint. The joint piece is provided with a second male joint which has a substantially spherical head and a through hole extending through a central part of the head and a second female joint formed integrally on an end of the second male joint located opposite the head and having a substantially semispherical hollow portion which is formed therein so as to communicate with the through hole. The head of the first male thread joint of either the bulb socket or the plug is slidably fitted in the hollow portion of the second female joint of the joint piece, and the head of the second male joint of the joint piece is slidably fitted in the hollow portion of the first female joint of the plug or the bulb socket, whereby the bulb socket and the plug are connected to each other. Two conductor wires are inserted through the through holes of the first male and female joints of the bulb socket or the plug and the through hole of the second female joint of the joint niece so that the bulb socket and the plug are electrically connected to each other. 
     In use of the above-described bulb mounting fixture, the plug is inserted into the electrical outlet fixed to the ceiling or the wall surface, and an electrical bulb is attached to the bulb socket. According to the above-described bulb mounting fixture, the head of the bulb socket or the first male joint of the plug is slidably fitted into the hollow portion of the second female joint of the joint piece. The head of the second male joint of the joint piece is slidably fitted into the hollow portion of the first female joint of the plug or the bulb socket, whereby the bulb socket and the plug are connected to each other. Consequently, the bulb attached to the bulb socket can be adjusted to any direction. 
     The disclosure further provides a bulb mounting fixture comprising a bulb socket to which a cap of an electrical bulb is attachable, a cap attachable to a power socket and a joint piece. In the fixture, the bulb socket has a bottom formed with a first male joint having a substantially spherical head and a through hole formed through a central part of the head or a first female joint having a substantially semi spherical hollow portion and a through hole communicating with the hollow portion. The cap has a bottom formed with the first male or female joint. The joint piece is provided with a second male joint which has a substantially spherical head and a through hole extending through a central part of the head and a second female joint formed integrally on an end of the second male joint located opposite the head and having a substantially semispherical hollow portion which is formed therein so as to communicate with the through hole. The head of the first male thread joint of either the bulb socket or the cap is slidably fitted in the hollow portion of the second female joint of the joint piece, and the head of the second male joint of the joint piece is slidably fitted in the hollow portion of the first female joint of the plug or the bulb socket, whereby the bulb socket and the cap are connected to each other. Two conductor wires are inserted through the respective through holes of the first male and female joints of the bulb socket or the cap and the through hole of the second female joint of the joint piece so that the bulb socket and the cap are electrically connected to each other. 
     In use of the above-described bulb mounting fixture, the cap is inserted into the power socket fixed to the ceiling or the wall surface, and an electrical bulb is attached to the bulb socket. According to the above-described bulb mounting fixture, the head of the bulb socket or the first male joint of the cap is slidably fitted into the hollow portion of the second female joint of the joint piece. The head of the second male joint of the joint piece is slidably fitted into the hollow portion of the first female joint of the cap or the bulb socket, whereby the bulb socket and the cap are connected to each other. Consequently, the bulb attached to the bulb socket can be adjusted to any direction. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the accompanying drawings: 
         FIG. 1  is a perspective view of a bulb mounting fixture according to a first embodiment; 
         FIG. 2  is a cross-sectional view of the bulb mounting fixture according to the first embodiment; 
         FIG. 3  shows a usage example of the bulb mounting fixture according to the first embodiment; 
         FIG. 4  is a perspective view of a bulb mounting fixture according to a second embodiment; 
         FIG. 5  is a cross-sectional view of the bulb mounting fixture according to the second embodiment; 
         FIG. 6  shows a usage example of the bulb mounting fixture according to the second embodiment; 
         FIG. 7  is a cross-sectional view of the bulb mounting fixture according to a third embodiment; 
         FIG. 8  shows a usage example of the bulb mounting fixture according to the third embodiment; 
         FIG. 9  is a cross-sectional view of the bulb mounting fixture according to a fourth embodiment; 
         FIG. 10  is a cross-sectional view of a female joint of the bulb mounting fixture according to the fourth embodiment; 
         FIG. 11  is a cross-sectional view of a male joint of the bulb mounting fixture according to the fourth embodiment; 
         FIG. 12  is a cross-sectional view of a joint piece of the bulb mounting fixture according to the fourth embodiment; 
         FIG. 13  is a cross-sectional view of a bulb mounting fixture according to a fifth embodiment; 
         FIG. 14  is a perspective view of a bulb mounting fixture according to a sixth embodiment; 
         FIG. 15  is a cross-sectional view of a bulb mounting fixture according to the sixth embodiment; 
         FIG. 16  shows a usage example of the bulb mounting fixture according to the sixth embodiment; 
         FIG. 17  is a perspective view of a bulb mounting fixture according to a seventh embodiment; 
         FIG. 18  is a cross-sectional view of the bulb mounting fixture according to the seventh embodiment; 
         FIG. 19  shows a usage example of the bulb mounting fixture according to the seventh embodiment; 
         FIG. 20  is a perspective view of a bulb mounting fixture according to an eighth embodiment; 
         FIG. 21  is a cross-sectional view of the bulb mounting fixture according to the eighth embodiment; 
         FIG. 22  shows a usage example of the bulb mounting fixture according to the eighth embodiment; 
         FIG. 23  is a perspective view of a bulb mounting fixture according to a ninth embodiment; 
         FIG. 24  is a perspective view of a bulb mounting fixture according to a tenth embodiment; and 
         FIG. 25  is a perspective view of a bulb mounting fixture according to an eleventh embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments will be described with reference to the accompanying drawings.  FIGS. 1 to 3  illustrate a bulb mounting fixture  10  according to a first embodiment. The bulb mounting fixture  10  includes a bulb socket  12  to which a cap of an electrical bulb is to be attached and a plug  13  which is to be detachably connected to a ceiling outlet fixed to a ceiling. 
     The bulb socket  12  has a bottom with a female joint  12   a  formed integrally therewith. The female joint  12   a  is formed with a   substantially semispherical hollow portion  12   b  and a through hole  12   c  communicating between the hollow portion  12   b  and an interior of the bulb socket  12 . The plug  13  has a bottom with a male joint  13   a  formed integrally therewith. The male joint  13   a  is formed with a substantially spherical head  13   b  and a through hole  13   c  extending through the head  13   b . The hole  13   c  is configured to communicate with the hole  12   c  as will be described later. 
     The head  13   b  of the male joint  13   a  of the plug  13  is slidably fitted into the hollow portion  12   b  of the female joint  12   a  of the bulb socket  12 , whereby the bulb socket  12  and the plug  13  are connected to each other. Two conductor wires  15  are inserted through the holes  12   c  and  13   c . One of the conductor wires  15  has one end connected to an electrode fitting  12   d  of the bulb socket  12  and the other conductor wire  15  also has one end connected to an electrode fitting  12   e  of the bulb socket  12 . The other ends of the conductor wires  15  are connected to electrode fittings  13   d  of the plug  13  respectively. 
     In use of the bulb mounting fixture  10  having the above-described structure, the plug  13  is hung on the ceiling outlet  16  fixed to the ceiling and an electrical bulb  17  is attached to the bulb socket  12 , as shown in  FIG. 3 . 
     According to the bulb mounting fixture  10 , the head  13   b  of the male joint  13   a  is slidably fitted into the hollow portion  12   b  of the female joint  12   a , whereby the ball joint is constructed. The bulb socket  12  and the plug  13  are connected to each other by the ball joint. Consequently, the bulb  17  attached to the bulb socket  12  can be adjusted to any direction. 
       FIGS. 4 to 6  illustrate a bulb mounting fixture  20  according to a second embodiment. The bulb mounting fixture  20  includes the bulb socket  12  and a cap  21  screwed into a power socket  22  fixed to the ceiling or wall surface. The cap  21  has a bottom with a male joint  21   a  formed integrally therewith. The male joint  21   a  is formed with a substantially spherical head  21   b  and a through hole  21   c  which extends through the head  21   b  and communicates with an interior of the cap  21 . Since the bulb socket  12  has the same structure as the bulb socket  12  employed in the first embodiment, identical or similar parts in the second embodiment are labeled by the same reference symbols as those in the first embodiment, and the description of these parts will be eliminated. 
     The head  21   b  of the male joint  21   a  formed on the cap  21  is slidably fitted into the hollow portion  12   b  of the female joint  12   a  formed on the bulb socket  12 , whereby the bulb socket  12  and the cap  21  are connected to each other. Two conductor wires  15  are inserted through the hole  12   c  of the female joint  12   a  and the hole  21   c  of the male joint  21   a . One of the conductor wires  15  has one end connected to the electrode fitting  12   d  of the bulb socket  12  and the other conductor wire  15  also has one end connected to an electrode fitting  12   e  of the bulb socket  12 . The other ends of the conductor wires  15  are connected to electrode fittings  21   d  and  21   e  of the cap  21  respectively. 
     In use of the bulb mounting fixture  20  having the above-described structure, the cap  21  is screwed into the power socket  22  fixed to the ceiling and an electrical bulb  17  is attached to the bulb socket  12 , as shown in  FIG. 6 . 
     According to the bulb mounting fixture  20 , the head  21   b  of the male joint  21   a  is slidably fitted into the hollow portion  12   b  of the female joint  12   a , whereby the ball joint is constructed. The bulb socket  12  and the cap  21  are connected to each other by the ball joint. Consequently, the bulb  17  attached to the bulb socket  12  can be adjusted to any direction. 
     In the bulb mounting fixture  20  according to the second embodiment, the cap  21  has the same size standard as the bulb socket  12  in the bulb mounting fixture  20  according to the second embodiment. However, the bulb socket  12  and the cap  21  may have respective size standards different from each other. In this case, for example, an electrical bulb provided with the cap having the size standard different from that of the power socket  22  can electrically be connected to the power socket  22 . 
       FIGS. 7 and 8  illustrate a bulb mounting fixture  30  according to a third embodiment. The bulb mounting fixture  30  includes the bulb socket  12  and a plug  31  which is configured to be connected to a lighting bar fixed to the ceiling. The plug  31  has a bottom with a male joint  31   a  formed integrally therewith. The male joint  31   a  is formed with a substantially spherical head  31   b  and a through hole  31   c  which extends through the head  31   b  and communicates with an interior of the plug  31 . The plug  31  has an end surface to which a pair of electrode fittings  31   d  are fixed. The electrode fittings  31   d  are slidably hung on rail-like terminals built in the lighting bar. Since the bulb socket  12  has the same structure as the bulb socket  12  employed in the first embodiment, identical or similar parts in the second embodiment are labeled by the same reference symbols as those in the first embodiment, and the description of these parts will be eliminated. 
     The head  31   b  of the male joint  31   a  formed on the plug  31  is slidably fitted into the hollow portion  12   b  of the female joint  12   a  formed on the bulb socket  12 , whereby the bulb socket  12  and the plug  31  are connected to each other. Two conductor wires  15  are inserted through the hole  12   c  of the female joint  12   a  and the hole  31   c  of the male joint  31   a . One of the conductor wires  15  has one end connected to the electrode fitting  12   d  of the bulb socket  12  and the other conductor wire  15  also has one end connected to an electrode fitting  12   e  of the bulb socket  12 . The other ends of the conductor wires  15  are connected to electrode fittings  31   d  of the plug  31  respectively. 
     In use of the bulb mounting fixture  30  having the above-described structure, the plug  31  is connected to the lighting bar  32  and an electrical bulb  17  is attached to the bulb socket  12 , as shown in  FIG. 8 . According to the bulb mounting fixture  30 , a position of the bulb  17  hung on the lighting bar  32  can be changed along the lighting bar  32 . 
     Furthermore, the head  31   b  of the male joint  31   a  is slidably fitted into the hollow portion  12   b  of the female joint  12   a , whereby the ball joint is constructed. The bulb socket  12  and the plug  31  are connected to each other by the bail join. Consequently, the bulb  17  attached to the bulb socket  12  can be adjusted to any direction. 
       FIGS. 9 to 12  illustrate a bulb mounting fixture  40  according to a fourth embodiment. The bulb mounting fixture  40  includes a bulb socket  42  and a plug  43  and a joint piece  14 . The bulb socket  42  has a bottom to which are mounted a female joint  44  and a hollow bolt  45 . The female joint  44  is formed with a semispherical hollow portion  44   a , a screw hole  44   b  and a through hole  44   c  which communicates between the hollow portion  44   a  and the hole  44   b  as shown in  FIG. 10 . On the other hand, the bulb socket  42  has a bottom with a centrally located screw hole  42   a . The hollow bolt  45  has one end screwed into the screw hole  42   a  of the bulb socket  42 . The female joint  44  is screwed into the other end of the hollow bolt  45 . 
     The plug  43  has a bottom to which a male joint  46  and the hollow bolt  45  are mounted. The male joint  46  includes a substantially spherical head  46   a , a screw hole  46   b  and a through hole  46   c  communicating between the head  46   a  and the screw hole  46   b  as shown in  FIG. 11 . The bottom of the plug  43  has a centrally located screw hole  43   a . Another hollow bolt  45  has one end screwed into a screw hole  43   a . The female joint  44  is screwed into the other end of the hollow bolt  45 . 
     The joint piece  14  is a plastic molding and includes a male joint  14   a  and a female joint  14   b  both of which are formed integrally with each other, as shown in  FIG. 12 . The male joint  14   a  has a substantially spherical head  14   c  which is formed with a centrally located through hole  14   d . The female joint  14   b  has a substantially semispherical hollow portion  14   e  which is integrally formed in one end located opposite the head  14   c  and communicates with the hole  14   d.    
     The head  14   c  of the male joint  14   a  of the joint piece  14  is slidably fitted into the hollow portion  44   a  of the female joint  44  of the bulb socket  42 , and the head  46   a  of the male joint  46  is slidably fitted into the hollow portion  14   e  of the female joint  14   b  of the joint piece  14 . The conductor wires  15  are inserted through the hole  44   c  of the female joint  44  of the bulb socket  44 , the hole  14   d  of the joint piece  14  and the hole  46   c  of the male joint  46  of the plug  43 . One conductor wire  15  has one end connected to the electrode fitting  42   b  of the bulb socket  42 , and the other conductor wire  15  has one end connected to the electrode fitting  42   c  of the bulb socket  42 . The other ends of the conductor wires  15  are connected to the electrode fittings  43   b  of the plug  43  respectively. 
     In use of the bulb mounting fixture  40  having the above-described structure, the plug  43  is inserted into the ceiling outlet  16  thereby to be connected to the ceiling outlet  16  and the bulb  17  is attached to the bulb socket  42 . 
     According to the bulb mounting fixture  40 , the head  14   c  of the male joint  14   a  of the joint piece  14  is slidably fitted into the hollow portion  44   a  of the female joint  44 , and the head  46   a  of the male joint  46  is slidably fitted into the hollow portion  14   e  of the female joint  14   b  of the joint piece  14 , whereby the bail joint is constructed. The bulb socket  42  and the plug  43  are connected to each other by the ball joint. Consequently, the bulb  17  attached to the bulb socket  42  can be adjusted to any direction. 
       FIG. 13  illustrates a bulb mounting fixture  50  according to a fifth embodiment. The bulb mounting fixture  50  includes the bulb socket  42 , a cap  51  screwed into the power socket  22  thereby to be attached to the power socket  22 , and the joint piece  14 . The cap  51  has a bottom formed with a screw hole  51   a . The hollow bolt  45  has one end screwed into the screw hole  51   a , and the male joint  46  is screwed into the other end of hollow bolt  45 . 
     The head  14   c  of the male joint  14   a  is slidably fitted into the hollow portion  44   a  of the female joint  44  of the bulb socket  42 , and the head  46   a  of the male joint  46  of the cap  51  is slidably fitted into the hollow portion of the female joint  14   b  of the joint piece  14 . The conductor wires  15  are inserted through the hole  44   c  of female joint  44 , the hole  14   d  of the joint piece  14  and the hole  46   c  of the male joint  46 . As a result, the ends of the conductor wires  15  are connected to the electrode fittings  42   b  and  42   c  of the bulb socket  42 , and the other ends of the conductor wires  15  are connected to the electrode fittings  51   b  and  51   c  of the cap  51 . 
     In use of the bulb mounting fixture  50  having the above-described structure, the cap  51  is connected to the power socket  22  and an electrical bulb  17  is attached to the bulb socket  42 . According to the bulb mounting fixture  50 , the female joint  44 , the joint piece  14  and the male joint  46  constitute the ball joint. Since the bulb socket  42  and the cap  51  are connected to each other by the above-described ball joint, the bulb  17  attached to the bulb socket  42  can be adjusted to any direction. 
       FIGS. 14 to 16  illustrate a bulb mounting fixture  60  according to a sixth embodiment. The bulb mounting fixture  60  includes the bulb socket  12 , the plug  13  and the electrical cord body  11 . The cord body  11  includes a plurality of joint pieces  14 . The male joint  14   a  of one of the joint piece has the head  14   c  which is slidably fitted into the hollow portion  14   e  of the female joint  14   b  of another joint piece  14 , so that the plural joint pieces  14  are connected to one another. The conductor wires  15  are inserted through the holes  14   d  of the connected joint pieces  14 , whereby the cord body  11  connecting the bulb sockets  12  and the plugs  13  to each other is constructed. 
     The head  14   c  of the male joint  14   a  of the joint piece  14  constituting one end of the cord body  11  is slidably fitted into the hollow portion  12   b  of the female joint  12   a  of the bulb socket  12 . The head  13   b  of the male joint  13   a  of the plug  13  is slidably fitted into the hollow portion  14   e  of the female joint  14   b  of the joint piece  14  constituting the other end of the cord body  11 . The bulb mounting fixture  60  has the other structure that is the same as that of the bulb mounting fixture  10  according to the first embodiment. 
     In use of the bulb mounting fixture  60  having the above-described structure, the plug  13  is hung on the ceiling outlet  16  fixed to the ceiling, and the bulb  17  is attached to the bulb socket  17 , as shown in  FIG. 16 . As a result, the bulb  17  is hung down from the ceiling outlet  16  by the cord body  11 . According to the bulb mounting fixture  60 , the plural joint pieces  14  are slidably connected to one another thereby to be formed into the cord body  11 . Consequently, the cord body  11  has flexibility thereby to be flexed. Furthermore, the bulb mounting fixture  60  can be retained in the flexed state of the cord body  11  by a frictional force between the adjacent joint pieces  14 . Accordingly, When the cord body  11  is flexed, the bulb  17  attached to the bulb socket  12  mounted on one end of the cord body  11  can be adjusted in the direction and the height position. 
       FIGS. 17 to 19  illustrate a bulb mounting fixture  70  according to a seventh embodiment. In the bulb mounting fixture  70 , the bulb socket  12  is connected to one end of the cord body  11  and the cap  21  is connected to the other end of the cord body  11 . The bulb mounting fixture  70  has the other structure that is the same as that of the bulb mounting fixture  20  according to the second embodiment. 
     In the bulb mounting fitting  70 , the bulb  17  is attached to the bulb socket  12  and the can  21  attached to the end of the cord body  11  is screwed into the power socket  22  fixed to the ceiling as shown in  FIG. 19 . As a result, the bulb  17  is hung on the cord body  11  connected via the cap  21  to the power socket  22 . This can adjust the direction and the height position of the bulb  17  attached to the bulb socket  12  provided on the end of cod body  11  by flexing the cord body  11  in the similar manner as in the bulb mounting fixture  60  according to the sixth embodiment. 
       FIGS. 20 to 22  illustrate a bulb mounting fixture  80  according to an eighth embodiment. In the bulb mounting fixture  80 , the bulb socket  12  is connected to one end of the cord body  11  and the plug  31  is connected to the other end of the cord body  11 . The bulb mounting fixture  80  has the other structure that is the same as that of the bulb mounting fixture  30  according to the third embodiment. 
     In use of the bulb mounting fixture  80 , the plug  31  is connected to the lighting bar  32  and the bulb  17  is attached to the bulb socket  12 , as shown in  FIG. 22 . According to the bulb mounting fixture  80 , the position of the bulb  17  hung on the lighting bar  32  can be adjusted along the lighting bar  32 . Furthermore, the bulb  17  is attached to the bulb socket  12  provided in the end of the cord body  11 . The direction and the height position of the bulb  17  can be adjusted by flexing the cord body  11 . 
       FIG. 23  illustrates a bulb mounting fixture  90  according to a ninth embodiment. In each of the bulb mounting fixtures  60 ,  70  and  80  according to respective sixth to eighth embodiments, the bulb socket  12  is connected to one end of the cord body  11  and the plug  13  or  31  or the cap  21  is connected to the other end of the cord body  11 . In the bulb mounting fixture  90  as shown in  FIG. 23 , however, a bulb socket  92  is formed integrally on the bottom of a plug  91 , and a plurality of cord bodies  11  extends from the peripheral surface of the bulb socket  92 . The cord bodies  11  have distal ends to which the bulb sockets  12  are mounted respectively. 
     According to the bulb mounting fixture  90 , the bulbs  17  can be attached to the bulb socket  92  and the bulb sockets  12  respectively. Since positions and directions of the plural bulbs  17  are adjusted by flexing the respective cord bodies  11 , the bulb mounting fixture  90  can be used as a decorative lighting with design full of changes. 
       FIG. 24  illustrates a bulb mounting fixture  100  according to a tenth embodiment. The bulb mounting fixture  100  includes a cap  101  having an open end provided with a bulb socket  102 . A plurality of cord bodies  11  extends from the peripheral surface of the bulb socket  102 . The cord bodies ii have distal ends to which bulb sockets  12  are mounted respectively. The bulbs  17  are attached to the bulb sockets  12  respectively. 
       FIG. 25  illustrates a bulb mounting fixture  110  according to an eleventh embodiment. The bulb mounting fixture  110  includes a plug  111  which is to be connected to a lighting bar. The plug  111  has a lower end surface formed with a bulb socket  12  having a peripheral, surface. A plurality of cord bodies  11  extends from the peripheral surface of the bulb socket  112  respectively. The bulb sockets  12  are mounted to the cord bodies  11  respectively. The bulbs  17  can be attached to the bulb sockets  12  and  112  respectively. 
     The foregoing description and drawings are merely illustrative of the present disclosure and are not to be construed in a limiting sense. Various changes and modifications will become apparent to those of ordinary skill in the art. All such changes and modifications are seen to fall within the scope of the appended claims.