JP3002496U - Ceramic light bulb socket - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a socket for a ceramic light bulb that can be securely mounted with a wire connection terminal, can be connected from above and can be easily operated, and is suitable for use in a narrow space. A socket main body is provided with a connection terminal 3 which is provided with two spring pieces 32 and 33 for pressing and holding an electric wire in a holding box 31 formed by bending a metal plate so as to be vertically flexible. A terminal screw 12 which is housed in the upper housing grooves 14 and 15 of FIG.
The terminal screws 13 to which the holding contact screw cylinders 22 of the bulb mounting base 2 are attached are respectively screwed into the screw holes 34 formed in the bottom of the holding box 31, and the connection terminals 3 are fixed in the accommodation grooves 14 and 15. Then, the electric wire insertion opening faces the upper surface of the socket body 1 and is arranged upward, and the electric wire insertion hole 41 communicating with the electric wire insertion opening is provided in the lid body 4 in the vertical direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ceramic light bulb socket.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, a socket that can be connected with one touch by simply inserting an electric wire has been effectively used by providing a connecting terminal in which a spring piece is housed in a holding box. However, in both cases, since the insertion hole of the wire is horizontal, it can be used in a place with a large horizontal space, and there is a problem that it is difficult to use in a narrow area. In this respect, there is also one that connects by inserting an electric wire from above, but since the connection terminal of the connection part is connected directly to the bulb mounting base without connecting screws, the bulb is attached to the socket. It was troublesome to install the base and the connection terminal.

[0003]

[Problems to be solved by the device]

 Therefore, the present invention makes it possible to easily and securely attach a base for attaching a light bulb and a connection terminal by using a conductive screw, and it is possible to connect the wire from above to facilitate work, and for a ceramic light bulb suitable for use in a narrow space. It provides a socket.

[0004]

[Means for Solving the Problems]

 For this reason, the present invention proposes a pair of connection terminals to be attached to a ceramic lid, a socket body equipped with a light bulb attachment base, and a socket body containing a spring piece for pressing and holding an electric wire in a holding box. Of the wiring terminals, the spring pieces are housed in the holding boxes so that they can be flexed in the vertical direction, and the terminal screws of the bulb attachment base are screwed into the screw holes formed at the bottom of the holding boxes. The wire insertion holes are fixed to the socket main body from the upper surface of the socket body upward, and the lid has the wire insertion holes communicating with the respective wire insertion holes in the vertical direction. In addition, a pair of connecting wire terminals are provided on both sides of the conductive connecting plate by fixing the wire connecting terminals, and the terminal screws of the bulb mounting cap are screwed into the screw holes provided in the conductive connecting plate to connect the respective connecting terminals. The electric wire insertion port may be a socket for connection in which the socket main body is fixed upward from the upper surface.

[0005]

[Action]

 The terminal screws of the bulb mounting cap are screwed into the screw holes formed on the bottom of the holding box, respectively, so that the wire connection terminals can be attached and fixed stably, and the wire insertion holes of the wire connection terminals are arranged upward from the top of the socket body. In addition, since the spring piece is flexible in the vertical direction, the electric wire inserted downward from the electric wire insertion hole provided in the lid is pressed by the bar piece of each connection terminal to be connected. Of.

[0006]

【Example】

 Hereinafter, an illustrated embodiment of the present invention will be described. In the present example shown in FIGS. 1 and 2, reference numeral 1 is a ceramic socket body, and a light bulb attachment base 2 is attached to an inner space 11 below the center by terminal screws 12 and 13.

In addition, the connection terminals 3 are accommodated in the upper accommodation grooves 14 and 15 of the socket body 1, and the connection terminals 3 are provided in the holding box 31 formed by bending a metal plate as shown in FIGS. 3 and 4. Two spring pieces 32 and 33 for pressing and holding are housed by being locked so that they can be flexed in the vertical direction, and a screw hole 34 is projectingly provided at the bottom of the holding box 31. The terminal screw 12 to which the piece 21 is attached and the terminal screw 13 to which the contact screw screw tube 22 for holding the bulb attachment base 2 are attached are screwed into the respective screw holes 34 to accommodate the connection terminal 3 in the receiving groove 14, It is fixed inside 15 and is arranged upward with the electric wire insertion opening facing the upper surface of the socket body 1.

Reference numeral 4 denotes a ceramic lid, which has an electric wire insertion hole 41 communicating with the electric wire insertion port of the connection terminal 3 in the vertical direction.

Since this example is configured in this way, the terminal screws 12 and 13 of the bulb mounting cap 2 are screwed into the screw holes 34 formed at the bottom of the holding box 31, respectively, so that the connection terminal 3 is It can be stably fixed. Further, since the wire insertion port of the connection terminal 3 is arranged upward from the upper surface of the socket body 1 and the spring pieces 32 and 33 are flexible in the vertical direction, the wire insertion hole 41 transparently provided in the lid body 4 The inserted electric wire 5 is pressed and connected between the holding boxes 31 by the spring pieces 32 and 33 of the respective connection terminals 3.

As described above, according to this example, since the wires can be connected from above rather than from the side, smooth work can be achieved even in a narrow place. In this case, the connection terminals are secured with screws so that the arrangement is secured and the connection terminals do not come off and the connection state can be secured.

Although the present example is configured as described above, the present invention is not limited to this. For example, the shape of the lid body and the socket body does not matter. When the connection terminals are short, as shown in FIGS. 5 and 6, the socket main body 6 in which the recessed groove 61 is formed between the accommodation grooves of the connection terminal and the blocking projection 71 that engages with the recessed groove 61 are placed below. The lid 7 may be provided so as to project toward it, which is safe because the blocking protrusion 71 is interposed between the connection terminals as shown in FIG.

Further, the shape and configuration of the connection terminal are not limited, and it is sufficient that a spring piece for pressing and holding the electric wire is provided in the holding box, and the number of spring pieces is appropriate. Further, as shown in FIG. 8, a pair of connecting wire connecting terminals 8 are formed by fixing wire connecting terminals 82 and 83 on both sides of the conductive connecting plate 81, and the terminal screws 91 and 92 of the bulb mounting cap are connected to the conductive connecting plate 81. A configuration may be employed in which the wire insertion holes of the respective connection terminals 82 and 83 are fixed upward to the socket body by screwing into the provided hole 84, as shown in FIG. This allows you to connect another socket.

[0013]

[Effect of device]

 According to the present invention, since the wire insertion port of the connection terminal is arranged upward and the spring piece thereof is flexible in the vertical direction, the wire can be connected not from the side but from the top, which enables smooth work even in a narrow place. At the same time, it is possible to secure the arrangement and connection because the connection terminals are screwed. According to the second aspect, the sockets can be connected to each other by the connecting terminal.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view thereof.

FIG. 3 is an enlarged perspective view in which a part of the connection terminal is cut away.

FIG. 4 is an enlarged perspective view from the back side of the connection terminal, which is turned upside down.

FIG. 5 is a plan view of a socket body of another example.

FIG. 6 is a back view of a lid body of another example thereof.

FIG. 7 is a vertical cross-sectional view of a main part of another combined example.

FIG. 8 is a perspective view of a wire connection terminal of another example.

FIG. 9 is a partially cutaway plan view of a socket using the connection terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket main body 12,13 Terminal screw 14,15 Housing groove 2 Light bulb mounting cap 3 Connection terminal 31 Holding box 32, 33 Spring piece 34 Screw hole 4 Lid 41 Wire insertion hole 6 Socket main body 61 Recessed groove 71 Blocking protrusion Part 8 Connection terminal for connection 81 Conductive connection plate 82,83 Connection terminal 84 Screw hole 91,92 Terminal screw

Claims (2)

[Scope of utility model registration request] 1. A ceramics lid body, a ceramics socket main body provided with a base for mounting a light bulb, and a pair of connection terminals attached to a socket main body accommodating a spring piece for pressing and holding an electric wire in a holding box. In the above, the spring pieces are housed in the holding boxes so that they can be flexed in the vertical direction, and the terminal screws of the bulb mounting cap are screwed into the screw holes formed at the bottoms of the holding boxes to secure the wire insertion ports of the connection terminals. A ceramic light bulb socket characterized in that the socket body is fixed upward from the top surface of the socket body, and a wire insertion hole communicating with each wire insertion hole is vertically provided through the lid body. 2. A pair of connecting wire terminals formed by fixing wire connecting terminals to both sides of the conductive connecting plate, and terminal wires of a bulb fitting base are screwed into screw holes provided in the conductive connecting plate to connect the respective wire connecting terminals. 2. The electric bulb socket according to claim 1, wherein the wire insertion port of the terminal is fixed to the socket body from the upper surface upward.