KR100395353B1 - Rotation type electric components - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention is to provide a compact and cheap and at the same time small.

Therefore, in the rotary electric component of the present invention, the supporting portion 5c of the leaf spring 5 is placed on the upper surface 1h of the side wall 1d, and the upper surface plate of the mounting member 6 is mounted on the supporting portion 5c. (6a), so that the assembly can be superimposed, so that the assembly can be provided inexpensive and inexpensive as compared to caulking the plate spring in the fixed portion of the mounting member as in the prior art. have.

Description

ROTATION TYPE ELECTRIC COMPONENTS {ROTATION TYPE ELECTRIC COMPONENTS}

The present invention relates to a preferred rotating electrical component for use in various electronic devices.

Referring to Figs. 16 and 17 with reference to a rotary encoder as an example for a conventional rotary electric component, the casing body 31 made of a molded article of synthetic resin as an insulating material has a hollow portion 31a penetrating back and forth in the center. Cylindrical cylindrical portion 31b, bottom wall 31c formed by extending outwardly in the radial direction from the rear end of the cylindrical portion 31b, and rectangular shape formed by extending forward from the outer circumferential portion of the bottom wall 31c. It has a side wall 31d and the ring-shaped accommodating part 31e which consists of the recessed part formed between this side wall 31d and the cylinder part 31b.

Moreover, the contact piece 32 which consists of metal leaf springs is embedded in the casing body 31, and the terminal part 32a protrudes outward from the side wall 31d, and the contact part 32b is the accommodating part 31e. It is in a state exposed inside.

The rotating body 33 made of a molded product made of synthetic resin has a cylindrical shaft portion 33a formed at the center portion, a ring-shaped blade portion 33b formed to extend outwardly in the radial direction from the rear end of the shaft portion 33a, and It has the uneven part 33c formed in the front surface side of the blade part 33b.

Moreover, the conductive pattern 34 which consists of metal plates is embedded in the rotating body 33, and this conductive pattern 34 is formed by exposing to the back surface of the blade part 33b.

And the rotating body 33 which formed the conductive pattern 34 inserts the cylinder part 31b into the shaft part 33a, and the blade part 33b is accommodated in the accommodating part 31e, and is accommodated in the casing body 31. As shown in FIG. It is rotatably mounted.

The leaf spring 35 which consists of a metal plate has the circular ring-shaped arm part 35a, the convex part 35b formed in this arm part 35a, and the pair of hole 35c formed in the arm part 35a. Have

In addition, the mounting member 36 made of a metal plate has a rectangular upper surface plate 36a, a circular hole 36b formed at the center of the upper surface plate 36a, and a burring process adjacent to the hole 36b. A pair of eyelet-shaped fixing portions 36c formed on the upper surface plate 36a, a pair of mounting pieces 36d which are bent from a pair of sides that the upper surface plate 36a opposes each other, and extend back; Holes 36e for facilitating bending formed in the rear portion of the mounting piece 36d and the upper surface plate 36a are bent from a pair of sides facing each other to extend rearward, and parallel to the mounting piece 36d. It has a plurality of mounting legs 36f.

The fixing member 36c is inserted into the mounting member 36 through the hole 35c of the leaf spring 35, and the arm 35a of the leaf spring 35 is superimposed on the upper plate 36a. The leaf spring 35 is attached by caulking the tip of the furnace fixing part 36c.

In this way, the mounting member 36 on which the leaf spring 35 is mounted is inserted through the tube portion 31b and the shaft portion 33a through the hole 36b to cover the front of the housing portion 31e with the top plate 36a. The upper surface plate 36a is mounted on the upper end surface 31f of the side wall 31d in the state.

Then, the mounting piece 36d and the mounting leg 36f extend rearward along the side wall 31d, and one end of the mounting piece 36d extending backward is bent toward the casing body 31 to attach the mounting member 36 to the casing body 31 side. ) Is attached to the casing body 31.

And when the mounting member 36 is attached to the casing body 31, the leaf spring 35 is located in the accommodating part 31e, and the convex part 35b engages with the uneven part 33c, and comprises a click. At the same time, the rotating body 33 is pressed backward so that the contact piece 32 and the conductive pattern 34 come into contact with each other, and the rear end of the mounting leg 36f is further protruded further from the bottom wall 31c. .

Referring to the operation of the rotating electrical component having such a configuration, first, when the shaft portion 33a of the rotating body 33 is rotated, the conductive pattern 34 formed on the rear surface of the blade portion 33b also rotates, and the contact piece 32 A pulse signal is generated by sliding on the conductive pattern 34.

At this time, the uneven part 33c of the rotating body 33 hangs or peels off with the convex part 35b of the leaf spring 35, and a click feeling is acquired in rotation operation.

In addition, as shown in FIG. 17, such a rotary electric part has the bottom of the casing body 31 in a state where the push type switch part 38 mounted on the printed board 37 is located in the hollow part 31a. The wall 31c is mounted, and the terminal portion 32a and the mounting leg 36f are soldered and mounted on the printed board 37.

That is, the rotating electrical component is mounted with the shaft portion 33a perpendicular to the surface of the printed circuit board 37.

By such a configuration, the mounting occupying area of the switch section 38 is reduced, miniaturization is achieved, and at the same time, the operation member (not shown) for positioning the switch section 38 in the hollow portion 31a and The axial part 33a is arrange | positioned on the same axis, and aims at the improvement of operability.

In the conventional rotary electric parts, since the leaf spring 35 is mounted by caulking the fixing portion 36c of the mounting member 36, there is a problem that the work is cumbersome, the productivity is worsened, and the cost is high.

In addition, since the side wall 31d of the casing body 31 and the upper plate 36a of the mounting member 36 have a quadrangular shape, there is a problem that the rotating electrical component becomes large.

Therefore, an object of the present invention is to provide a compact rotating electrical component that is good in assembly and inexpensive.

1 is an enlarged cross-sectional view of an essential part of a rotary electric component of the present invention;

Figure 2 is an enlarged side view of the main part of the rotary electric component of the present invention.

3 is a plan view of a casing body according to the rotary electric component of the present invention;

4 is a rear view of a casing body according to the rotary electric component of the present invention.

FIG. 5 is a cross sectional view taken along line 5-5 of FIG. 4; FIG.

6 is a plan view of a rotating body according to the rotary electric component of the present invention.

7 is a rear view of a rotating body according to the rotating electrical component of the present invention.

8 is a sectional view taken along the line 8-8 of FIG. 6;

9 is a plan view of a leaf spring of the rotary electrical component of the present invention.

10 is a side view of a leaf spring of the rotary electric component of the present invention.

11 is an enlarged plan view of an essential part of a leaf spring of a rotary electric component of the present invention;

12 is a cross-sectional view taken along the 12-12 line of FIG.

13 is a plan view of a mounting member according to the rotating electrical component of the present invention.

14 is a front view of a mounting member according to the rotating electrical component of the present invention.

15 is a side view of a mounting member according to the rotating electrical component of the present invention.

16 is an exploded perspective view of a conventional rotating electrical component.

17 is an enlarged cross-sectional view of a main portion of a conventional rotating electrical component.

Explanation of symbols on the main parts of the drawings

1: casing body 1a: hollow part

1b: tube part 1c: bottom wall

1d: side wall 1e: housing

1f: protrusion 1g: convex

1h: top face 1j: recess

1k: recess 2: conductive pattern

2a: terminal portion 2b: contact portion

3: rotor 3a: shaft portion

3b: blade portion 3c: uneven portion

3d: convex portion 4: tangent

5: leaf spring 5a: arm portion

5b: assembly portion 5c: support portion

5d: notch 5e: bend

6: mounting member 6a: top plate

6b: hole 6c: mounting piece

6d: mounting leg 7: printed circuit board

8: Case 9: Pushbutton

10: switch unit

As a first solution for solving the above problems, a casing body made of an insulating material, a rotating body rotatably mounted to the casing body, a conductive pattern formed on one side of the casing body and the rotating body, and the casing body And a contact piece formed on the other side of the rotating body and contacting the conductive pattern, a leaf spring constituting a click by hanging or peeling off the rotating body, and mounting the leaf spring and the rotating body to the casing body. And a mounting member, the casing body having a bottom wall, a side wall extending forward from an outer circumferential portion of the bottom wall, and an accommodating part including a recess formed in the inner side of the side wall, wherein the rotating body is the casing body. A shaft portion rotatably supported on the shaft, and an uneven portion formed on the front side thereof, and a ring-shaped blade formed by extending outwardly in the radial direction from the shaft portion. The blade portion is accommodated in the housing portion, the leaf spring has an arm portion having an engaging portion for hanging or peeling off the uneven portion, and extends outwardly from the arm portion to be placed on the top surface of the side wall. And a notch portion formed at the position of the support portion, wherein the mounting member has an upper surface plate covering the upper portion of the housing portion, and a mounting piece that is bent from the upper surface plate and extends backward. Part of the mounting piece is bent to the casing body with the mounting member and the support part engaged, and the support spring is fitted between the upper plate and the upper end surface of the side wall to mount the leaf spring. It was set as the structure.

As a 2nd solution means, the said mounting piece was located in the said notch part, and it was set as the structure which made the said mounting piece and the said support part engage.

As a third solution, the support portion was provided with a refractive portion, and the refractive portion was sandwiched between the upper plate and the upper end surface of the side wall.

As a fourth solution, the mounting member has a configuration in which the mounting member is bent from the top plate to extend rearward and a mounting leg mountable on the printed board is provided.

In a fifth solution, the casing body has a hollow portion formed in a central portion thereof and has a tubular portion for rotatably supporting the cylindrical shaft portion, and the sidewalls are formed in a cylindrical shape and the upper surface of the sidewall and the The upper surface plate covering the front of the housing portion was formed in a circular ring shape.

Embodiment of the Invention

1 is an enlarged cross-sectional view of an essential part of a rotary electric component of the present invention, FIG. 2 is an enlarged side view of an essential part of a rotary electric component of the present invention, and FIG. 4 is a plan view of the casing body of the rotary electric component of the present invention, and FIG. 4 is a rear view of the casing body of the rotary electrical component of the present invention, and FIG. 5 is a cross-sectional view taken along line 5-5 of FIG.

6 is a plan view of a rotating body according to the rotary electric component of the present invention, FIG. 7 is a rear view of the rotating body according to the rotating electrical component of the present invention, and FIG. 8 is a sectional view taken along line 8-8 of FIG. 9 is a plan view of a leaf spring of a rotary electric component of the present invention, FIG. 10 is a side view of a leaf spring of a rotary electric component of the present invention, and FIG. 11 is a view of a leaf spring of a rotary electric component of the present invention. 12 is an enlarged plan view of the main part, FIG. 12 is a sectional view taken along the line 12-12 of FIG. 11, FIG. 13 is a plan view of a mounting member relating to the rotary electric component of the present invention, and FIG. 14 is a mounting member relating to the rotary electric component of the present invention. 15 is a side view of a mounting member according to the rotary electric component of the present invention.

When the rotary electric component of the present invention is described with reference to the rotary encoder as an example, the casing body 1 made of a molded article of synthetic resin as an insulating material is particularly shown in FIGS. 3 to 5. As described above, a cylindrical cylindrical portion 1b having a hollow portion 1a penetrating back and forth in the center portion, a bottom wall 1c formed to extend outward in the radial direction from the rear end portion of the cylindrical portion 1b, and the bottom wall A ring-shaped accommodating portion 1e composed of a cylindrical side wall 1d extending forward from the outer periphery of 1c, a concave portion formed between the side wall 1d and the tubular portion 1b, and a bottom wall ( A plurality of projections 1f protruding rearward from 1c, convex portions 1g formed on the projections 1f, a plurality of recesses 1j formed on the rear surface of the bottom wall 1c, and side walls 1d. Having a plurality of recesses 1k formed in the upper end surface 1h of the All.

The conductive pattern 2 made of a metal plate is embedded in the casing body 1, the terminal portion 2a protrudes outward from the side wall 1d, and the contact portion 2b is the housing portion 1e. It is in a state exposed inside.

As shown in Figs. 6 to 8, the rotary body 3 made of a molded article of synthetic resin is formed by extending outward in the radial direction from the rear end of the cylindrical shaft portion 3a formed in the center portion and the shaft portion 3a. It has a circular ring-shaped blade portion 3b, an uneven portion 3c formed on the front side of the blade portion 3b, and a plurality of convex portions 3d protruding backward from the blade portion 3b.

Moreover, the contact piece 4 which consists of a metal leaf spring is attached to the rotating body 3 by thermal caulking the tip of the convex part 3d, etc. in the state mounted on the back surface of the blade part 3b.

And the rotating body 3 which formed the contact piece 4 inserts the cylinder part 1b into the shaft part 3a, and the blade part 3b is accommodated in the accommodating part 1e, and is rotated by the casing body 1 It is mounted as possible.

At this time, the contact piece 4 is in contact with the conductive pattern 2.

The leaf spring 5 which consists of a metal plate especially has the engagement part 5b which consists of a circular ring-shaped arm part 5a, and the convex part formed in this arm part 5a, as shown in FIGS. And the plurality of support portions 5c formed to extend outward from the arm portion 5a, the notch portions 5d formed on the outer circumferential portion of the support portion 5c, and the support portions 5c are bent in a mountain shape. And the curved part 5e which protruded in the same direction as the extending | stretching direction of the engagement part 5b.

Then, the leaf spring 5 passes through the cylinder portion 1b and the shaft portion 3a at the center portion thereof, and the support portion 5c is placed on the side wall 1d with the arm portion 5a positioned in the housing portion 1e. The engaging portion 5b is brought into contact with the uneven portion 3c while being placed on the upper end surface 1h in the state of being located in the recess 1k.

Moreover, especially the mounting member 6 which consists of a comparatively thin metal plate is a circular ring-shaped upper surface plate 6a and circular shape formed in the center part of this upper surface plate 6a, as shown to FIGS. 13-15. Holes 6b, a plurality of (4) mounting pieces 6c extending from the side bent from the sides facing each other and the top plate 6a and the top plate 6a are bent from the sides facing each other and rearward It has a pair of mounting leg 6d extended by the.

Moreover, the pair of opposing mounting pieces 6c is formed in taper shape.

And this mounting member 6 inserts the cylinder part 1b and the shaft part 3a through the hole 6b, and opens the upper surface plate 6a in the state which covered the front of the accommodating part 1e with the upper surface plate 6a. While mounting on the support part 5c of the leaf spring 5, the pair of mounting pieces 6c formed in the tapered shape are located in the notch part 5d, and the mounting piece 6c and the support part 5c are hardened. Fit together and fasten.

Then, the mounting piece 6c and the mounting leg 6d extend rearward along the side wall 1d, and one end of the mounting piece 6c extending rearward is bent to the casing body 1 side to be bent and bent. One end of the mounting piece 6c is fixed to the recess 1j to mount the mounting member 6 to the casing body 1.

And when the mounting member 6 is attached to the casing body 1, at least the support part 5c of the leaf spring 5 is between the upper surface 6a and the upper end surface 1h of the side wall 1d by caulking. At the same time, the leaf spring 5 is fitted tightly and the bent portion 5e is firmly sandwiched between the top plate 6a and the top surface 1h of the side wall 1d, and the leaf spring 5 is mounted. ) Becomes stronger.

Moreover, when the mounting member 6 is attached to the casing body 1, while the engagement part 5b engages with the uneven part 3c, it comprises a click, and the rotating body 3 is pressed back and is electroconductive. The pattern 2 and the contact piece 4 come into contact with the predetermined sliding pressure, and the rear end of the mounting leg 6d is further protruded further from the bottom wall 1c.

Referring to the operation of the rotary electric component of the present invention having such a configuration, first, when the shaft portion 3a of the rotating body 3 is rotated, the contact piece 4 mounted on the rear surface of the blade portion 3b also rotates. The contact piece 4 slides on the contact portion 2b of the conductive pattern 2 to generate a pulse signal.

At this time, the uneven part 3c of the rotating body 3 hangs or peels off with the engaging part 5b of the leaf spring 5, and a click feeling is acquired in rotation operation.

In addition, as shown in FIG. 1, the printed circuit board 7 includes a case 8 containing a contact portion (not shown) and a push type switch section 10 including push buttons 9 capable of vertical movement. It is fitted.

In the rotary electric component of the present invention described above, the projection 1f of the casing body 1 is placed on the printed circuit board 7 with the switch unit 10 located in the hollow portion 1a. (2a) and the mounting leg 6d are soldered to the printed board 7 and are attached.

At this time, the rotary electric component is positioned relative to the printed circuit board 7 by inserting the convex portion 1g of the casing body 1 into the hole (not shown) of the printed circuit board 7, and at the same time, the rotary electric component is The shaft portion 3a is mounted perpendicular to the surface of the printed board 7.

By arranging the switch portion 10 in the hollow portion 1a in this manner, the mounting occupying area of the entire rotary encoder and the switch portion 10 is reduced, miniaturization is achieved, and the hollow portion 1a is placed in the center portion. ), The operation member (not shown) which operates the switch part 10, and the axial part 3a are arrange | positioned on the same axis, and the operability is improved.

In the above embodiment, the rotary encoder has been described as an example, but a rotary electric component such as a rotary variable resistor may be used.

Moreover, while forming the contact piece 4 in the casing body 1, you may form the conductive pattern 2 in the rotating body 3. As shown in FIG.

In addition, a part of the mounting member 6 other than the mounting piece 6c may be engaged with the notched portion 5d of the leaf spring 5.

In the rotary electric component of the present invention, the supporting portion 5c of the leaf spring 5 is placed on the upper surface 1h of the side wall 1d, and the upper surface plate of the mounting member 6 is mounted on the supporting portion 5c. Since 6a) can be placed on top of each other, the assembly can be performed in a superimposed manner, and the assembly thereof is better as compared to the caulking of the plate spring on the fixing part of the mounting member as in the prior art, thereby providing an inexpensive rotary electric component. .

In addition, the supporting portion 5c of the leaf spring 5 is fitted by the upper surface 1h of the side wall 1c and the upper surface plate 6a of the mounting member 6, so that the leaf spring 5 can be firmly mounted. have.

Moreover, what is necessary is just to support the support part 5c slightly outward from the arm part 5a accommodated in the accommodating part 1e, and can make the external shape of the leaf spring 5 small.

In addition, since the mounting piece 6c was placed in the notch part 5d so that the mounting piece 6c and the support part 5c were engaged, the support part 5c was placed between the upper end surface 1h and the upper plate 5a. Since it can be firmly fitted, the leaf spring 5 can be mounted firmly.

In addition, when the mounting member 6 using a relatively thin metal plate is bent toward the casing body 1 side of the mounting piece 6c, the center portion of the upper surface plate 6a is lifted to the front to be in a state of being lifted, and thus the upper surface plate. The outer circumferential edge portion of 6a is about to fall from the top surface 1h.

However, since the mounting piece 6c is positioned at the notch part 5d, the outer circumferential edge portion of the upper plate 6a in the mounting piece 6c does not fall off from the upper end face 1h side, and the supporting part 5c is provided. ), The mounting member 6 can use a thin material, and the material cost becomes low.

Moreover, since the bent part 5e was formed in the support part 5c, and the bent part 5e was pinched | interposed between the upper surface plate 6a and the upper end surface 1h of the side wall 1d, the support part 5c is not produced | generated. ) Can be firmly sandwiched and the mounting of the leaf spring 5 becomes more firm.

In addition, since the mounting member 6 is provided with a mounting leg 6d which is bent from the top plate 6a and extends backward and can be mounted on the printed circuit board 7, the printed circuit board 7 for rotating electrical parts is provided. ), The mounting portion 10 can be easily and firmly mounted, and the switch portion 10 can be arranged on the printed circuit board 7 in the hollow portion 1a, so that the compactness and good operability can be obtained.

In addition, since the side wall 1d was formed in a cylindrical shape, and the upper surface 1h of the side wall 1d and the front plate 6a covering the front of the storage portion 1e were formed in a circular ring shape, Compared with the conventional rectangular shape, it can be made small in size and low in material cost.

Claims (5)

A casing body made of an insulating material, a rotating body rotatably mounted to the casing body, a conductive pattern formed on one side of the casing body and the rotating body, and formed on the other side of the casing body and the rotating body; A leaf spring in contact with the leaf spring, a leaf spring configured to click or peel off the rotating body to form a click, and a mounting member for mounting the leaf spring and the rotating body to the casing body, The casing body has a bottom wall, a side wall formed by extending forward from an outer circumferential portion of the bottom wall, and an accommodating part including a concave portion formed inside the side wall, The rotating body has a shaft portion rotatably supported by the casing body, a concave-convex portion is formed on the front side, and a ring-shaped blade portion formed to extend outwardly in the radial direction from the shaft portion, and the blade portion is accommodated in the accommodating portion. Become, The leaf spring has an arm portion having an engaging portion for hanging or peeling off the uneven portion, a support portion extending outwardly from the arm portion and placed on the top surface of the side wall, and a notch portion formed at the position of the support portion, The mounting member has an upper surface plate covering the upper portion of the accommodating portion, and a mounting piece that is bent from the upper surface plate and extends to the rear side, and a part of the mounting member is placed on the notch portion to hang the mounting member and the support portion. And the leaf spring is mounted by bending one end of the mounting piece toward the casing body side by fitting the support portion between the upper plate and the upper end surface of the side wall. The rotating electrical component as set forth in claim 1, wherein the mounting piece is positioned in the notch part and the mounting piece is engaged with the support part. The rotating electrical component according to claim 1, wherein a bent portion is formed in the support portion, and the refraction portion is sandwiched between the upper surface plate and the upper end surface of the side wall. The rotating electrical component according to claim 1, wherein the mounting member is provided with a mounting leg that is bent from the top plate to extend rearward and attachable to a printed board. 2. The casing body according to claim 1, wherein the casing body has a hollow portion formed in a central portion thereof and has a tubular portion for rotatably supporting the cylindrical shaft portion, and the sidewalls are formed in a cylindrical shape, and the upper surface of the sidewall and the The top plate covering the front of the housing is formed in a circular ring shape, the rotary electric component, characterized in that.