JPS61123113A - Electronic component - 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 the Invention The present invention relates to electronic components used in electrical circuits.

Conventional configurations and their problems In recent years, there has been a demand for electronic components that are small and easy to operate.

Conventional electronic components will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are a top view and a vertical cross-sectional view, respectively, showing a conventional electronic component using a variable resistor as an example.

FIG. 3 is a top view of the substrate. FIGS. 4A and 4B are a top view and a side view of the slider, respectively. 1 to 4, reference numeral 1 denotes a substrate made of an insulating material, and as shown in FIG. 3, a through hole 1a is provided in the center, and both ends are connected to extraction electrodes 3 around the through hole 1&. A horseshoe-shaped resistor film 2 is formed, and each of the lead electrodes 3 has a terminal 7.
is connected. 4 is a conductive center plate, which has a constriction part 4b.
A central hole 4a is provided in the center of the bottom 4c of the aperture portion 4b, and the substrate 1 is fixed with fixing claws 4d and 4e. Reference numeral 5 denotes a conductive slider, which has a mounting portion 5b having a center hole 5a in the center as shown in FIG. A pressure contact arm 5d provided with a contact point 5c that presses against the membrane 2 is provided so as to surround the mounting portion 5b, and a pressure contact arm 5d is provided so as to surround the mounting portion 5b.
A claw portion 6e protruding toward the center is provided at a location. Reference numeral 6 denotes an operating shaft made of an insulating material, and the constricted portion 4b of the center plate 4 is inserted into the through hole 1a of the substrate 1;
The slider 6 is mounted on the bottom 4c of the constricted portion 4b of the center plate 4 so that the center hole 4a of the center plate 4 and the center hole 6a of the slider 5 are coaxial. After placing the center plate 4, the center plate 4 is integrally molded with resin or the like so as to fit into the center plate 4, passing through the center hole 4a of the center plate 4 and the center hole 6a of the slider 6. It is provided so that it can rotate freely. At this time, the claw portion 5e of the mounting portion 5b of the slider 6 is embedded in the operating shaft 6, so that the slider 5 rotates together with the operating shaft 6. Further, the operation shaft 6 has operation grooves e& at both ends thereof.

6b is formed.

The operation of the variable resistor configured as above will be described below.

First, by fitting an operating jig such as a screwdriver into the operating groove 6a or 6b of the operating shaft 6 and rotating the operating shaft 6, the slider 5 rotates together with the operating shaft 6.
rotates, and the contact point 6c of the slider 5 slides on the resistor film 2, thereby obtaining a desired resistance value.

However, in the above configuration, as the variable resistor is downsized, the operating groove 6 at one end of the operating shaft 6 is
This has the disadvantage that a can only be formed dimensionally small, and the operability from the operating groove 6a side is worse than from the operating groove 6b side.

OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks, the present invention provides an electronic component with good operability even if the operating axis becomes smaller due to miniaturization.

Structure of the Invention In order to achieve this object, the electronic component of the present invention includes an operating shaft that is formed integrally with a center plate, and has an expanded wall formed by bending the peripheral wall near the operating groove at one end in the direction of the outer circumferential direction after the integral formation. With this configuration, one end of the operating shaft is expanded, and when an operating jig such as a screwdriver is fitted into the operating groove of the operating shaft, the expanded wall is It plays the role of a guide, making it possible to obtain electronic components with good operability.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 5 is a longitudinal cross-sectional view showing an example of an electronic component of the present invention using a variable resistor. FIG. 6 is a longitudinal cross-sectional view of FIG. 6 before the expansion wall is formed. FIG. 7 is a view of the operating shaft in FIG. 6 in the direction of arrow A. In FIGS. 5 to 7, 1 is a substrate, 4 is a center plate, 4a is a center hole, 4b is a constriction part, 4C is a bottom part, 4e is a fixing claw,
S is a slider, 5b is a mounting portion, and 6C is a contact point, which is the same as the structure of the conventional embodiment shown in FIG. 2. The soil temperature diagram 6 and the parts not shown in Figure 6 are similar. What is different from the configuration shown in FIG. 2 is that when the operating shaft 16 is formed integrally with the center plate 4 and the slider 5 as shown in FIG. The peripheral wall 16c is formed to protrude appropriately, and after integrally forming the peripheral wall 16c as shown in FIG. 5, an expansion wall 16d is provided by bending the peripheral wall 16c outward.

The operation of the variable resistor configured as described above will be explained below.

First, by fitting an operating jig such as a screwdriver into the operating groove 16a or 16bK of the operating shaft 16 and rotating the operating shaft 16, the slider 6 that rotates together with the operating shaft 16 is rotated. By moving the resistor, the desired resistance value can be obtained.

As described above, according to this embodiment, the center plate 4, the slider 6, and the operating shaft 16 are integrally formed, and the peripheral wall 16c near the operating groove 16a at one end of the operating shaft 16 is integrally molded, and then the peripheral wall 16c is integrally formed. By providing the expansion wall 1sd bent outward,
When fitting an operating jig such as a screwdriver from the operating groove 16a side of the operating shaft 16, the expansion wall 16d plays the role of a guide even if the operating jig such as the driver is slightly misaligned. As a result, damage to the vicinity of one end where the operating groove 16a is provided can be prevented, and a variable resistor with good operability can be obtained.

In addition, although the variable resistor was shown as an example in the Example, it goes without saying that the same applies to a variable capacitor or a switch.

Effect of the invention As described above, the present invention is formed integrally with the center plate.

By providing an operating shaft having an expanded wall formed by integrally forming a peripheral wall near the operating groove at one end and bending the peripheral wall outward,
Even if the operation shaft becomes smaller due to miniaturization, the expansion wall plays the role of a guide when fitting an operation jig such as a screwdriver, and increases the projected area from the operation direction, improving operability. It also serves as a protective wall, and has great practical effects.

[Brief explanation of drawings]

Figures 1 and 2 are top views and vertical cross-sectional views showing conventional electronic components using a variable resistor as an example, and Figure 3 is a top view of a board.
4A and 4B are top and side views of the slider, FIG. 6 is a vertical cross-sectional view showing the electronic component of the present invention using a variable resistor as an example, and FIG. 6 is before the expansion wall is formed as shown in FIG. 5. FIG. 7 is a longitudinal sectional view of the operating shaft in FIG. 6 in the direction of arrow A. DESCRIPTION OF SYMBOLS 1...Substrate, 1a...Through hole of substrate 1, 2...Mark/Resistor film, 3...Extractor electrode, 4
・Old...Central plate, 4a...Central hole, 4b...
...Aperture part, 4c...Bottom part, 4d. 4e...Fixing claw, 5...Slider, 5
a...River/center hole, 5b...Mounting part, 5c...
...Contact, 6d, old...Pressure arm, 5e...
Claw part, 6.16... group/operation shaft, 6 a. 6b, 16a, 16b-・River-operation groove, 16c-
-----Peripheral wall near the operating groove 16a, expansion wall for 16d, 7...terminal. Name of agent: Patent attorney Toshio Nakao (11) Figure 1 Figure 1iE3

Claims (2)

[Claims] (1) An electronic component characterized in that an operating shaft is formed integrally with a center plate and has an expanded wall formed by bending a peripheral wall near an operating groove at one end in an outward direction after the integral formation. (2) The electronic component according to claim 1, wherein the electronic component is a variable resistor in which the center plate, the slider, and the operating shaft are integrally formed.