JPS5946017A - Electronic mechanism 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 The present invention relates to an electronic mechanical component, and more particularly to an electronic mechanical component such as a trimmer capacitor, a variable resistor, or a low-return switch that has a rotating mechanism including a rotor and a stator.

Conventionally, in the l-'J macondenser, a rotor and a stator are housed in a case with an opening at one end, and the rotor is adjusted by a screwdriver or the like through the opening of the case. A driver groove was provided in the above-mentioned rotor, which was manufactured by the company, to allow the rotor to rotate.

By the way, in order to insert the blade of the driver into the driver groove and rotate the rotor, a relatively large 1-lux is required. For this reason, a deep groove is required to fill the J-type driver, but special machining is required to form such a groove in the rotor, which has the disadvantage of increasing the cost of the trimmer capacitor.

The present invention has been made to solve the above-mentioned drawbacks of conventional electronic machine IV77 parts such as trimmer capacitors, and the rotor is fitted into an engaging recess provided in the rotor of a rotating mechanism section housed in a case with an open end. The loaf presser plate is attached to the case so that it can rotate together with the rotor by engaging the cut and raised pieces of the presser plate, and by rotating the rotor through the τ coater presser plate, the depth of the four retaining parts can be adjusted. The objective is to reduce the cost of electronic mechanical components by making the engaging recess of the C rotor easier to form.

For this reason, the present invention provides an electronic mechanical component in which a rotating mechanism including a rotor and a steering wheel is housed in a case with an opening at one end, and the rotor is adjustable through the opening in the case. A portion of a metal disc made of a metal material having a metal material having a metal material is cut downward to form at least two cut and raised pieces, and the center part of the metal disc is cut downward, including the base of the cut and raised pieces. While forming a driver groove in the extruded metal disk, forming a support part that supports the base of the cut and raised piece, and -1- engaging the cut and raised piece with the four retaining parts provided on the rotor. The metal disc is rotatably attached to the case by elastically deforming the cut and raised pieces.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

An embodiment in which the present invention is applied to a trimmer capacitor is shown in FIGS. 1 and 2.

In FIGS. 1 and 2, terminals 2 and 3 connected to the rotating machine (section 14) are integrally molded in a case 1 that houses a rotating mechanism section to be described later.

The case 1 is made of a heat-resistant thermosetting resin that can withstand temperatures of about 300C, and one end of the terminal 2 is formed in the shape of a diaphragm toe 2a, as described below.
electrically connected to the rotor 4.

Further, the other end of the terminal 2 is extended outside the case 1.

An opening 5 is formed in the case 1, and a rotation mechanism is provided inside the opening 5.

The rotation mechanism section includes, in order from the bottom in FIG. 1, a dielectric 7, a rotor 4, and a rolling press plate 6.
It is electrically connected to one end of the terminal 3.

A rotor 4 made of a metal material is placed on two surfaces of the dielectric 7, and a semicircular electrode conductor 4 is also placed on the bottom surface of the rotor 4.
a is formed. A through hole 4b is formed in the center of the rotor 4 through which the eyelet 2a at one end of the terminal 2 is inserted, while a rotor holding plate 6, which will be described below, is formed on the "-" side of the rotor 4. The cut-and-raised piece 5a is provided with four engagement parts 4C for engagement with the cut-and-raised piece 5a (3a).

The rotor holding plate 6 has a shape as shown in FIGS. 3 and 4, and is located at the center of a metal disk (not shown) made of elastic metal J401 such as phosphor bronze. Cut and raise a part of the part between the inner part and the peripheral part downwards.
A + 6a +... is formed, and the vicinity of the center of the metal disk is pushed out from one side to the other side to form the lino raised piece 6a.

5a, . . . support portions 6d are formed.

The rotor holding plate 6 has a hole 6b in the center thereof, through which the eyelet 2a at one end of the terminal 2 is inserted.

In addition, the above-mentioned cut and raised piece 6 ar 6 a is attached to the rotor holding plate 6.
After cutting and raising r..., grooves 6C and 6C are formed into which a dry saw blade (not shown) is inserted.

As shown in FIG.
Place the rotor press plate 6 on top and insert it into the engaging recess 4C.
Insert the cut and raised pieces 6" + 6" t... into the through hole 4b of the rotor 4 and the hole 6b of the rotor holding plate 6.
Insert the eyelet 2a at one end of the terminal 2, and by caulking the eyelet 2a, the rotor holding plate 6 can be rotated together with the rotor 4. I'm ready to take it.

The rotor 4 has a cut and raised piece 6” H6 of the rotor press plate 6.
Since the tip of the +... presses the bottom of the engagement recess 4C, it is urged toward the dielectric 7.

The capacitance of the trimmer capacitor having the following configuration is taken out from between the terminals 2 and 30, and is connected to the electrode conductor 4a formed on the lower surface of the row 4 and the electrode formed on the lower surface of the dielectric body 7. Although it is determined by the overlapping area with the conductor 7a, when the blade of a driver is inserted into the slot 6C of the rotor press plate 6 and the rotor press plate 6 is rotated, the rotor 4 also rotates.
Stacked conductor 4a.

It becomes possible to change the opposing area of 7a.

At this time, the cut and raised piece 5a of the mouth presser plate 6.

621, . . . are in pressure contact with the bottom of the engagement recess 4c of the rotor 4 due to its spring force, even if the depth of the engagement recess 4C is relatively shallow, the cut and raised pieces 6a ,6a
, . . do not come off from the engagement recess 4c of the rotor 4.

Therefore, the depth of the four retaining portions 4c of the rotor 4 may be shallow, and they can be easily formed by coining processing, etc., which is low in processing cost.

In addition, in the embodiment described in "-", the rotor holding plate 6 is connected to the terminal 2.
Although not specifically shown, a locking plate is provided in the opening 5 of the case 1, and the rotor holding plate 6 is locked by the locking plate instead of being accessed by caulking the eyelet 2a. You can also do this.

In fact, the present invention can be widely applied not only to trimmer capacitors but also to variable resistors, rotary switches, etc. in which a rotating mechanism is housed in a case.

1 As is clear from the detailed description, the present invention provides an electronic mechanism component in which a rotating mechanism is housed in a case, in which the cut and raised pieces of the rotor press plate are engaged with the four retaining parts of the rotor. Since the rotor retaining plate is attached to the case so that it can rotate together with the rotor, the cut and raised pieces of the rotor retaining plate constantly press the bottoms of the four engaging parts of the U-Y with their spring force. Even if the depth of the four engaging parts of the r ivy becomes shallow, the cut and raised pieces of the row presser plate will not come off from the four retaining parts of the rotor.
The engagement recess of the rotor can be easily formed by coining processing, etc., which has a low processing cost.

In addition, according to the present invention, the impact or force applied from the opening side of the case of the electronic mechanism component is absorbed by the rotor presser plate, and the rotating mechanism of the electronic mechanism component protected from

[Brief explanation of drawings]

FIG. 1 is a plan view of a trimmer capacitor to which the present invention is applied;
2 is a cross-sectional view taken along the line 1--2 in FIG. 1, FIG. 3 is a plan view of the mouth presser plate, and FIG. 4 is a sectional view taken along the line 1--2 in FIG. 1... Case, 2, 3... Terminal, 4...
Rotor, 4C... engaging recess, 5... opening,
6...Rotor holding plate, 6a...Cut and raised piece,
6c...Slot, 6d...Support part, 7...Dielectric material.

Claims (1)

[Claims] (1) An electronic mechanism component comprising a rotating machine 114, including a rotor and a stay, housed in a case 1 having a shape between one end and a rotor adjustable through an opening in the case, which has elasticity. A part of the metal disc made of metal wood If is cut downward to form at least two cut and raised pieces, and the force of the cut and raised pieces (including the part) is -1, forming a support part for supporting the base of the cut and raised piece; An electronic device (14 parts) characterized in that the metal disc is rotatably attached to the case by engaging with the case and elastically deforming the cut and raised pieces.