JPH0222948Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a lamp holder for a small lamp used in small devices such as indicator lights and illuminated push button switches.

(b) Prior Art This type of small lamp holder 1' is used for small lamps (neon bulbs, incandescent bulbs,
Lead 2a' extending from the bottom of LED bulb, etc.) 2',
2b' is directly extended directly below the base part 12' through through holes 12a' and 12b' provided in the base part 12' of the lamp holder 1', and the lamp holder 1' is used for internally installing equipment such as an indicator light. a contact spring piece 3a that is electrically connected to the power terminal;
3b, respectively, so that the lamps 2'
It was designed to supply power to the

(c) Problems to be solved by the invention By the way, as mentioned above, the leads 2a' of the lamp 2',
In a configuration in which the extended portion of the lamp 2b' contacts the contact spring pieces 3a, 3b of the device, the size of the device depends on the length from the top of the lamp 2' to the ends of the leads 2a', 2b'. This has led to an increase in the length of the equipment, which has always been inconsistent with the recent trend toward downsizing of equipment.

(d) Means for solving the problem This invention was proposed in order to solve the above problem, and the lead of the small lamp does not extend directly below the bottom of the lamp holder, but instead extends directly below the bottom of the lamp holder. The lamp holder is made smaller by bending the lead metal fitting provided to connect the lead to the side surface of the lamp holder so as to have an approximately L-shaped cross section, and configuring the contact portion so that the side surface contacts the contact spring piece of the device. It is planned.

(e) Embodiment An embodiment of this invention will be described below with reference to the drawings.

In the schematic cross-sectional view of FIG. 1, reference numeral 1 denotes a lamp holder, and a small lamp (neon bulb, incandescent bulb, LED bulb, etc.) 2 is fitted into a recess 11 opened on the top surface. Two through holes 12a and 12b are opened in the bottom surface 11a of the recess 11, and the base portion 12 is provided with two through holes 12a and 12b.
Leads 2a and 2b of a small lamp 2 are inserted into each. and the base 1 of the lamp holder 1
The leads 2a and 2b inserted through the inside of the lead 2 and protruding from the bottom surface 12c thereof are cut to a required length that can be soldered. The lamp holder 1 also has a base 1.
2, the cross section is approximately L from the bottom surface 12c to the side surface 12d.
Lead metal fittings 13a and 13b having shapes like the above are respectively attached to two opposing parts. The lead fittings 13a, 13b have lead insertion holes 1 corresponding to the through holes 12a, 12b, respectively, in their horizontal pieces 13a1, 13b1.
3a2 and 13b2 are opened, and the leads 2a and 2b inserted through these portions are soldered and connected. On the other hand, the vertical pieces 13a3, 13b3 of the lead fittings 13a, 13b are made to contact the contact spring pieces 3a, 3b installed inside the device as contact parts, and have a protrusion 1 protruding outward in the center thereof.
3a4, 13b4 are formed to form contact spring pieces 3a, 3.
By engaging with b, a retainer is formed to prevent the lamp holder 1 from coming off from the device due to vibration or impact. In addition, the lead fittings 13a, 13
Reference numeral b is inserted into and attached to a predetermined portion during molding of the lamp holder 1, and embedding pieces (not shown) are formed at necessary locations.

(f) Function When the lamp holder 1 equipped with such a small lamp 2 is inserted into a device, for example, the push button switch 3 shown in FIG. , 3b are in contact with the vertical pieces 13a3, 13b3 of the lead fittings 13a, 13b, and the protrusions 13a4, 13b4 formed on the vertical pieces 13a3, 13b3 engage with the contact spring pieces 3a, 3b, so that the lamp holder 1 is removed. It is fixed so that it does not occur.

(g) Effects of the invention In this invention, as mentioned above, the lamp holder is formed so that the side part contacts the contact spring piece that conducts to the power supply terminal of the device, so the lamp holder containing the lamp can be formed compactly. As a result, it becomes possible to downsize the shape of the device that incorporates these devices.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of a lamp holder according to an embodiment of the invention, and FIG. 2 is an explanatory view showing the lamp holder inserted into a push button switch.
FIG. 3 is a schematic cross-sectional view for explaining a conventional lamp holder. 1: lamp holder, 12: base, 12a, 1
2b: Through hole, 12c: Bottom surface, 12d: Side surface, 13
a, 13b: Lead metal fittings, 13a1, 13b1:
Horizontal piece, 13a2, 13b2: Lead insertion hole, 1
3a3, 13b3: Vertical piece, 13a4, 13b
4: Projection, 2: Small lamp, 2a, 2b: Leads, 3a, 3b: Contact spring pieces.

Claims (1)

[Scope of utility model registration request] In a lamp holder in which a small lamp is inserted and inserted into a recess with an opening on the top surface, a horizontal piece is provided with a lead connection hole to which a lead extending from the small lamp can be connected by soldering at the bottom base of the lamp holder. and a vertical piece having a protrusion formed in its center portion that can contact and engage with a contact spring piece that is installed inside the device and conducts with the power supply terminal of the device at the side portion of the lamp holder. A lead metal fitting having a substantially L-shaped cross section is formed, and the lead metal fitting is connected to two opposite sides extending from the bottom surface to the side surface of the lamp holder.
A small lamp holder characterized by being configured by attaching it to each part.