Patent Publication Number: US-2004057236-A1

Title: Push-in type lamp holder

Description:
BACKGROUND OF THE INVENTION  
       [0001] 1. Field of the Invention  
       [0002] The present invention relates to a push-in type lamp holder, and especially to a push-in type lamp holder of which an illuminating apparatus is inserted into an inner seat of the lamp holder. With the projecting rim and the neck portion, the inner seat can be mounted to the hollow portion of the main lamp holder body, thus the object for effective and rapid lodging and engaging of the illuminating apparatus with the lamp holder is achieved, and the circuit of the electrical loop is formed and the illumination is completed.  
       [0003] 2. Description of the Prior Art  
       [0004] The conventional lamp holder, as shown in FIG. 1, comprises a lamp holder body  100 , a hollow portion  140 , a positive conductor  180 , and a negative conductor  160 . While the rear end of the illuminating apparatus  200  is formed with a spiral-shaped metal portion  220  and a connection point  210 , and is engaged with the spiral-shaped hollow portion  140  of the lamp holder body  100 . And the positive and negative conductors  160  and  180  are applied to contact with the connection point  210  and the spiral-shaped metal portion  220  of the illuminating apparatus  200 , respectively, in order to form the electrical loop and complete the illumination.  
       [0005] The said lamp holder has a certain function, however it has the following disadvantages:  
       [0006] The twirling of the spiral metal portion  220  into the hollow portion  140  of the lamp holder body  100  is a time-consuming process, and it is not beneficial for the economic purpose. Besides, the human body is easily to be cut by the sharp edge of metal portion.  
       [0007] The positive and negative conductors  160  and  180  in the conventional lamp holder body  100  are exposed to air, so that they are easily to be oxidized, and thus the contact of the positive and negative conductors  160  and  180  with the illuminating apparatus is insufficient.  
       [0008] In order to improve aforementioned defects, the inventor of the present invention has made a great effort and disclosed many novel designs, eventually this invention of a push-in type lamp holder is obtained.  
       SUMMARY OF THE INVENTION  
       [0009] Accordingly, the present invention is to provide a push-in type lamp holder, by setting an inner seat into a hollow portion of the lamp holder body, the loop of electrical circuit is formed rapidly. This is the first object of the present invention.  
       [0010] According to this push-in type lamp holder of the present invention, With the projecting rim and the neck portion of the inner seat, the above-mentioned inner seat may be mounted to the hollow portion of the main lamp holder body, thus the illuminating apparatus is set firmly and effectively This is another object of the present invention.  
       [0011] According to this push-in type lamp holder of the present invention, by the composition of the lamp holder body, the inner seat, and the illuminating apparatus, it is much easier to maintain and exchange the components of the lamp holder, and the costs of producing and repairing of the lamp holder may be reduced. This is another object of the present invention.  
       [0012] A more complete understanding of these and other features and advantages of the present invention will be apparent from a careful consideration of the following detailed description of certain embodiments illustrated in the accompanying drawings. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0013] The accompanying drawing,  
     [0014]FIG. 1 is a sectional view of the structure of the conventional lamp holder.  
     [0015]FIG. 2A is an elevational view in section of the push-in type lamp holder of the present invention.  
     [0016]FIG. 2B is an elevational view in section of the structure of the illuminating apparatus of the present invention.  
     [0017]FIG. 2C is an elevational view in section of the structures of the illuminating apparatus and inner seat of the present invention.  
     [0018]FIG. 2D is a cross-sectional view showing the first embodiment of the combination of present invention.  
     [0019]FIG. 2E is a cross-sectional view showing the second embodiment of the combination of present invention.  
     [0020]FIG. 3 is an assembled longitudinal sectional view of the embodiment of the push-in type lamp holder of the present invention.  
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
     [0021]FIG. 1 is a sectional view of the structure of the conventional lamp holder; its functions and disadvantages are described above, and will not be repeated here with.  
     [0022]FIG. 2A is an elevational view in section of the push-in type lamp holder of the present invention; the push-in type lamp holder of the present invention consists of:  
     [0023] A lamp holder body  10  of hollow tubing shape, the central part of the lamp holder body  10  is a hollow portion  11  having three sections, and the diameter of hollow portion  11  is close to the neck portion  22  of inner seat  20 , so that the neck portion  22  of inner seat  20  can be mounted to the hollow portion  11  of the lamp holder body  10 .  
     [0024] Inside of the lamp holder body  10 , a plurality of connecting plates  12  connected with a plurality of conducting wires  13  are set in the hollow portion  11  respectively with an inner edge  11 - 1  of hollow portion  11 . The rear ends of said multiple conducting wires  13  extend outward from the bottom of the hollow portion  11  of the lamp holder body  10 .  
     [0025] An inner seat  20 , which is composed of a projecting rim  21 , a neck portion  22 , and a bottom portion  23 . The diameter of a projecting rim  21  is a bit larger than the hollow portion  11  of a lamp holder body  10  so that when a inner seat  20  is mounted to the lamp holder body  10 , said inner seat  20  can be engaged with the lamp holder  10  with the projecting rim  21  positioned on the upper and of the lamp holder body  10 ; the central part of the inner seat  20  is a hollow portion  24  which connects the openings  25  formed on the lateral of bottom portion  23 , the bottom portion  23  forms a base holder  26  for holding illuminating apparatus  20  (as shown in FIG. 2C).  
     [0026] An illuminating apparatus  30 , wherein the illuminator  31  is tightly air sealed in a diaphanous husk  32 . The illuminator  31  may be made of LED or tungsten filaments and connected with a plurality of filaments  33  to its rear end; before the illuminating apparatus  30  is inserted into the hollow portion  24  of the inner seat  20 , a plurality of filaments  33  are bending along the lateral of the diaphanous husk  32  and form a base portion  34  for the illuminating apparatus  30 . The said filaments  33  are bent along the surface of husk  32  as shown in FIG. 2B.  
     [0027]FIGS. 2D and 2E are the first and the second embodiment of the connecting plates  12  of the present invention. As shown in the figures, the connecting plates  12  can be formed of rectangle shape (as shown in FIG. 2D), or arc shape (as shown in FIG. 2E). In addition, the inner lateral  27  of the opening  25  of the inner seat  20  is greater than the diameter of the illuminating apparatus  30 , but not greater than the outer rim of the filaments  33 , thus the filaments  33  won&#39;t tilt and an electrical loop of circle can be formed.  
     [0028]FIG. 3 is the assembled sectional view of the embodiment of the push-in type lamp holder of the present invention. As shown in the drawing, wherein the inner seat  20  with the illuminating apparatus  30  is inserted in the hollow portion  11  of a lamp holder body  10  to make the projecting rim  21  of inner seat  20  contacted with a upper edge  11 - 2  of a hollow portion  11 , so that the inner seat  20  is fixed in the hollow portion  11  of a lamp holder body  10 . In addition, the husk  32  and base portion  34  of illuminating apparatus  30  are inserted in the bottom portion  23  of an inner seat  20 . A plurality of filaments  33  which stretch out of the openings  25  on the lateral of the base portion  34  of a illuminating apparatus  30 , are bending along the lateral of the husk  32 . Besides, the said filaments  33  exposed on the lateral of the illuminating apparatus are contacted with connecting plates  12  respectively to form an electrical loop of circuit, and finally the lamp is illustrated as the electricity is applied  
     [0029] By the construction described above, the engaging of the illuminating apparatus with the lamp holder can be easily achieved, and the circuit of the electrical loop is formed.  
     [0030] Although the present invention has been described with a certain degree of particularity, the present disclosure has been made by way of example and change in details of structure may be made without departing from the spirit thereof.