JPS60105183A - Lamp socket - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lamp socket mainly intended for mini halogen lamps.

Conventional configurations and their problems Mini halogen lamp sockets are generally very compact, so there is a problem that the insulation distance between the center contact piece and the holder is small, and those parts themselves are also quite small. If the dimensions are forced, especially if the center contact piece is small, the elasticity of the center contact piece may deteriorate due to the high heat of the mini halogen lamp, which is characterized by its small size and high brightness, which becomes a problem. In addition, there is a good chance that the center contact piece and the holder may be assembled by attaching them in reverse, and in such a case, the process may be disrupted or problems may occur with the insulation distance between the center contact piece and the holder. It's possible.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to prevent thermal deterioration of the center contact piece;
The objective is to ensure an insulating distance between the center contact piece and the holder, and furthermore to prevent incorrect assembly.

Structure of the Invention In order to achieve the above-mentioned objects, the present invention comprises: a bottomed substantially cylindrical pod having grooves on both sides of its upper surface; a center contact piece having terminal portions fitted in the grooves; A receiver, a ring-shaped cap combined with the upper surface of the body, and a connector connecting the body and the cap; A notch is provided so that the base of the center contact piece is accommodated along the notch, the cap is provided with a protrusion that is inserted between the base of the center contact piece and the receiver, and the cap is provided with a protrusion that is inserted between the base of the center contact piece and the receiver, The lamp socket is characterized in that reverse attachment of the center contact piece and the receiver is prevented by making the widths of the terminal parts different and the widths of the terminal parts different.

Description of examples Next, embodiments of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a bottomed, substantially cylindrical body made of diagonal insulating material, for example, a porcelain material, and grooves 2 and 3 are provided on both sides of the upper surface. Reference numeral 4 represents a center contact piece, and reference numeral 5 represents a receiver, the terminal portions 6 and 7 of which are fitted into the grooves 2 and 3, respectively. 8
is a ring-shaped cap made of an insulating material, for example porcelain material, and is assembled on the upper surface of the body 1. 9,10
Reference numerals denote a fastening metal fitting and a metal bottom plate constituting a coupling device, which connects the body 1 and the cap 8.

In the body 1, a notch 11 is provided in the bottom direction at the inner edge of the groove 2 on which the center contact piece 4 is attached, and the base 12 of the center contact piece 4 is accommodated along the notch 11.

The cap 8 is provided with a protrusion 13 inserted between the base 12 of the center contact piece 4 and the receiver 5.

The widths of the grooves 2 and 3 are made different, for example, so that the groove 3 has a spring width, and the widths of the terminal parts 6 and 7 are made different from each other.
is made so that the terminal portion 7 is not fitted into the groove 2, thereby preventing the center contact piece 4 and the receiver 5 from being attached in the opposite direction.

Lead wires 14 and 14 are connected to the terminal portions 6 and 7, respectively. The receiver 5 has, for example, a flange 15 on its lower edge, and is placed on a step 16 formed on the inner periphery of the body 2 .

If a cutout 17 is provided at one end of the flange 16,
It is advantageous to insert the protrusion 13 without increasing the size of the body 1. On both sides of the lower surface of the cap 8 are provided protrusions 18, 19 which fit into the grooves 2, 3, respectively, each having a different width corresponding to the grooves 2.3. The fastening fitting 9 has a ring-shaped upper end and has fastening feet 20 on both sides thereof, and the inner end of the slit 21 is connected by inserting the tip into the slit 21 formed at both ends of the metal bottom plate 10 and bending it. A tightened portion 22 is formed with a bulging upper surface and a concave lower surface on the side, and when the tip of the tightening foot 2o is bent to the lower surface of the tightened portion 22,
The bent portion is designed to be approximately flush with the lower surface of the metal bottom plate 10, so that there is no wobbling when the metal bottom plate 10 is mounted on a mounting surface by passing screws or the like through the holes 23 of the metal bottom plate 10. There is a square hole 24 in the center of the metal bottom plate 10, into which a square projection 26 on the lower surface of the body 1 is fitted, so that the metal bottom plate 10 is angled with respect to the body 1.

When assembled, the base 12 of the center contact piece 4 is accommodated in the notch 11, so that the distance from this point in the center direction can be increased, and it is easy to configure the base 12 to be highly elastic. Since the protrusion 13 is inserted between the base 12 and the receiver 6, the mutual insulation distance can be maintained. In addition, since the terminal portion 7 of the receiver 6 does not fit into the groove 2, the center contact piece 4 and the receiver 6
There is no risk of assembling the reciprocal of

Effects of the Invention As is clear from the detailed description above, the lamp socket of the present invention has the following advantages:
There is little risk of elastic deterioration due to heat, the insulation distance between the center contact piece and the holder can be maintained reliably, and erroneous assembly can be prevented, making the process smoother.

[Brief explanation of drawings]

Figure 1 shows an exploded view of a lamp socket according to an embodiment of the present invention.
A perspective view, FIG. 2 is an assembled vertical sectional view, and FIG. 3 is an assembled side view. 1- Body, 2, 3... Groove, 4... Center contact piece, 5 Receiver, 6, 7... Terminal section, 8... Cap, 9...
・Tightening metal fittings (coupling fittings), 10...Metal bottom plate (coupling fittings),
11...-notch part, 12... base of center connection part 4, 13
...protrusion. Figure 1 Figure 2

Claims (1)

[Claims] A bottomed, substantially cylindrical body with grooves provided on both sides of the upper surface, a center contact piece and a holder each having a terminal portion fitted into the grooves, and a ring-shaped body assembled on the upper surface of the body. a cap, and a connector that connects the body and the cap, a notch is provided in the inner edge of the groove to which the center contact piece is attached toward the bottom, and the base of the center contact piece is inserted into the notch. The cap is provided with a protrusion that is inserted between the base of the center contact piece and the receiver, and the width of the groove is made different and the width of the terminal part is made different. A lamp socket characterized in that the center contact piece and the holder are prevented from being installed in reverse.