JP2002093280A - Rotary electric component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly precise rotary electric component having a rotator rotating superiorly and having a long serviceable life. SOLUTION: This rotary electric component is so constituted that a plate portion 7c composed of a metal plate embedded in a side wall part 3, the plate portion 7c is provided with a cylindrical receiver portion 7d, and a shaft portion 8a provided in the rotor 8 composed of synthetic resin is rotatably supported by the receiver portion 7d. This rotary electric component having the synthetic resin shaft portion 8a abraded little and the long serviceable life compared with the conventional one can be thus provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric component used for computer terminal equipment, portable communication equipment, audio equipment and the like.

[0002]

2. Description of the Related Art The structure of a conventional rotary electric component will be described with reference to FIGS. 51 to 55, taking a rotary encoder as an example. An insulating base 51 made of a synthetic resin molded product has a central portion. Board portion 51b having a hole 51a, a pair of arm portions 51c extending at right angles from both ends of the board portion 51b, and a hole provided at an end portion of the arm portion 51c and partially cut away. And a supporting portion 51d. The contact piece 52 made of a metal plate and the common contact piece 53
2a, 53a and terminal portions 52b, 53b, and the contact piece 52 and the common contact piece 53 are buried and attached to the substrate 51b in a state of being juxtaposed.
3a is located in the hole 51a and the terminal portions 52b, 53
b protrudes outward from the substrate portion 51b.

An elastic plate 54 made of a metal plate has a contact piece 52,
The board part 51b is arranged in a state where it is juxtaposed with the common contact piece 53.
Attached to. The cylindrical rotating body 55 includes a cylindrical portion 56 made of a molded product of a synthetic resin, and a cord member 57 made of a conductive material provided on an outer circumferential surface of the cylindrical portion 56. Further, the cord member 57 is formed by forming and processing twice with a conductive resin, and the outer peripheral surface of the cylindrical portion 56 is provided with a common pattern 57.
a, a comb-like code pattern 57b, and an uneven portion 56a for clicking are formed.
7a, the code pattern 57b, and the uneven portion 56a are arranged side by side in the rotation axis direction. Further, a shaft portion 56b is provided on both end surfaces of the cylindrical portion 56, and a non-circular hole 56c is formed in the center portion.

The rotating body 55 has a shaft portion 56b snapped to a support portion 51d of a pair of arm portions 51c, and is rotatably attached to the insulating base 51.
5, the contact part 53a of the common contact piece 53 contacts the common pattern 57a, and the contact part 52a of the contact piece 52 contacts the code pattern 57b,
Further, the elastic plate 54 is in elastic contact with the uneven portion 56a.
A dome-shaped cover 58 is attached to the insulating base 51 so as to cover the rotating body 55, and the encoder main body E2
Is configured. As shown in FIG. 53, such an encoder body E2 mounts the lower surface of the insulating base 51 on the printed circuit board P2 and prints the terminal portions 52b and 53b of the contact piece 52 and the common contact piece 53. Substrate P2
And the terminal portions 52b and 53b are soldered to a wiring pattern (not shown), so that the encoder body E2 is attached to the printed circuit board P2.

The operation of the rotary electric component having such a configuration will be described first.
c, a drive shaft (not shown) is inserted, and when the drive shaft is rotated from the outside, the shaft portion 56b of the cylindrical portion 56 is supported by the support portion 51d of the insulating base 51. , The rotating body 55 rotates. Then, the code member 57 also rotates, and the common pattern 57
a, the contact piece 52 is always in contact with the code pattern 57b, and the contact piece 52 is in contact with or separated from the code pattern 57b.
A pulse signal is generated between the contact piece 3 and the contact piece 52. Further, the elastic plate 54 is disengaged from the uneven portion 56a by the uneven portion 56a associated with the rotation of the rotating body 55, and the rotating body 55
Will be clicked. In this way, the operation of the rotary encoder, which is a rotary electric component, is performed.

[0006]

In a conventional rotary electric component, a shaft portion 56b made of a synthetic resin of a rotating body 55 is supported by a support portion 51d of an insulating base 51 made of a synthetic resin.
Since they rotate with the support portion 51d, they are formed of a synthetic resin, so that both of them are significantly worn, so that there is a problem that a long life cannot be achieved. In addition, since both are synthetic resins, there is a problem that slippage is poor and smooth rotation cannot be performed. Also, the shaft portion 56b is made of a synthetic resin supporting portion 5.
Since the mounting is performed at 1d, there is a large variation in the mounting position, and therefore, there is a problem that the contact cannot be reliably switched.

Accordingly, the present invention is to provide a rotary electric component with high accuracy, good rotation of a rotating body, and long life.

[0008]

As a first means for solving the above problems, an insulating base made of an insulating material provided with a side wall portion and an insulating material rotatably held on the side wall portion are provided. A rotating body, and a plate-shaped portion made of a metal plate is embedded in the side wall portion, and a cylindrical receiving portion is provided on the plate-shaped portion, and a shaft provided on the rotating body is provided. The part is rotatably supported by the receiving part.

As a second solution, a contact piece made of a metal plate is embedded in the insulating base, and the contact piece and the plate-shaped portion are connected to each other.

As a third solution, the receiving portion is located in a hole provided in the side wall portion.
As a fourth solution, the receiving portion is provided in close contact with the inner peripheral surface of the hole.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary electric part according to the present invention is shown in FIGS.
Referring to FIG. 50, FIG. 1 is a front view of the rotary electric component of the present invention, FIG. 2 is a rear view of the rotary electric component of the present invention, FIG. 3 is a top view of the rotary electric component of the present invention, 4 is a bottom view of the rotary electric component of the present invention, FIG. 5 is an exploded perspective view of the rotary electric component of the present invention, FIG. 6 is a cross-sectional side view of a main part of the rotary electric component of the present invention, and FIG. FIG. 8 relates to a rotary electric component of the present invention,
It is a perspective view which combined the insulating base and the rotating body.

FIG. 9 is a front view of a first embodiment of an insulating base according to the present invention, and FIG. 10 is a front view of the first embodiment of the insulating base according to the present invention. FIG. 11 is a bottom view of the first embodiment of the insulating base according to the rotary electric component of the present invention, and FIG. 12 is related to the rotary electric component of the present invention, and is in contact with the insulating base of the first embodiment. FIG. 13 is an explanatory view showing the relationship between the piece and a piece, and FIG. 13 is an explanatory view showing a method of manufacturing an insulating base according to the rotary electric component of the present invention.

FIG. 14 is a front view of a second embodiment of the insulating base according to the present invention, and FIG. 15 is a front view of the second embodiment of the insulating base according to the present invention. Side view,
FIG. 16 shows a second example of the insulating base according to the rotary electric component of the present invention.
FIG. 17 is a bottom view of an embodiment, and FIG. 17 is an explanatory view showing a relation between an insulating base and a contact piece of a second embodiment, relating to a rotary electric component of the present invention.

FIG. 18 is a front view of a first embodiment of the rotating body according to the present invention, and FIG. 19 is a side view of the first embodiment of the rotating body according to the present invention. , FIG. 2
0 is a rear view of the first embodiment of the rotating body according to the present invention, FIG. 21 is a cross-sectional side view of the first embodiment of the rotating body according to the present invention, and FIGS. 25 is an explanatory view showing a method of manufacturing a rotating body and a cord member according to the first embodiment, which relates to a rotary electric component of the present invention, and FIG. 26 is a perspective view of a cord member according to the rotary electrical component of the present invention.

FIG. 27 is a front view of a second embodiment of the rotating body according to the present invention, and FIG. 28 is a side view of the second embodiment of the rotating body according to the present invention. , FIG. 2
9 is a rear view of a second embodiment of the rotating body according to the present invention, FIG. 30 is a cross-sectional side view of the second embodiment of the rotating body according to the present invention, and FIG. FIG. 32 is a perspective view illustrating a method of attaching a rotating body and a cord member according to a second embodiment of the rotary electric component according to the present invention, and FIG. FIG. 33 is a cross-sectional view showing a state in which a rotating body and a cord member according to a third embodiment are combined with each other, and relates to a rotary electric component of the present invention.

FIG. 34 is a front view of the engaging member of the rotary electric component of the present invention, FIG. 35 is a top view of the engaging member of the rotary electric component of the present invention, and FIG. FIG. 37 is a bottom view of the engagement member according to the mold electric component, and FIG.
It is sectional drawing in the -37 line.

FIG. 38 is a perspective view of a first embodiment of the mounting plate according to the present invention, and FIG. 39 is a front view of the first embodiment of the mounting plate according to the present invention. , FIG.
0 is a side view of the first embodiment of the mounting plate according to the present invention, FIG. 41 is a bottom view of the first embodiment of the mounting plate according to the present invention, and FIG. 42 is the present invention. FIG. 43 is a perspective view showing a state in which the mounting plate of the first embodiment is attached to the encoder main body, and FIG. 43 is a diagram showing the mounting plate of the first embodiment in which the mounting plate of the first embodiment is attached to the encoder. FIG. 44 is a perspective view showing a state in which the mounting plate according to the first embodiment is mounted on the encoder main body according to the rotary electric component of the present invention, showing a state where the mounting plate is mounted on the main body.

FIG. 45 is a front view of a second embodiment of the mounting plate according to the present invention, and FIG. 46 is a side view of the second embodiment of the mounting plate according to the present invention. , FIG.
7 is a rear view of a second embodiment of the mounting plate according to the rotary electric component of the present invention, and FIG. 48 is related to the rotary electric component of the present invention, in which the mounting plate of the second embodiment is mounted on the encoder body. FIG. 49 relates to a rotary electric component of the present invention, and FIG. 49 relates to a rotary electric component of the present invention, and FIG. 50 relates to a rotary electric component of the present invention. FIG. 10 is a side view showing a state where the mounting plate of the second embodiment is mounted on the encoder body.

Next, regarding the rotary electric component of the present invention,
The structure of a rotary encoder will be described with reference to FIGS. 1 to 50. The insulating base 1 of the first embodiment, which is made of an insulating molded product, has a rectangular shape as shown in FIGS. A main base part 2 having a shape, a side wall part 3 provided upright at a right angle from the main base part 2, and thin parts 4 from both sides of the main base part 2.
And a pair of sub-base portions 5 connected by a link. The main base portion 2 has a pair of concave portions 2a provided on both end surfaces thereof, a columnar convex portion 2b provided at the center of the front end surface, and a tapered portion provided on the lower surface. And a latch portion 2c.

The side wall portion 3 is provided upright from a corner of the upper surface of the main base portion 2. The side wall portion 3 has a circular hole 3b provided at the center and a hole 3b. A pair of relief holes 3c provided from both sides of the main base portion 2 to the main base portion 2, a pair of upper wall portions 3d extending perpendicularly from the upper portion, a groove portion 3e provided between the pair of upper wall portions 3d, Upper wall 3d
And a projection 3g having a step provided on the upper surface of the projection. Further, the pair of sub-base portions 5 has a convex portion 5a having a rounded tip and provided on an end face, and a small convex portion 5b (see FIG. 11) provided on the lower surface of the convex portion 5a.

The insulating base 1 is formed by bending the thin portion 4 from the state shown in FIG.
Then, the rectangular insulating base 1 is formed as shown in FIG. 8 by press-fitting the convex portion 5a of the sub-base portion 5. At this time, the convex ridges 5b provided on the sub-base 5 facilitate and press-fit the sub-base 5 into the recess 2a.

The plurality of contact pieces 6 of the first embodiment made of a metal plate have a contact portion 6a and a terminal portion 6b, and the plurality of contact pieces 6 are embedded in the sub-base portion 5, respectively. The contact portion 6a projects upward from the upper surface of the insulating base 1, and the terminal portion 6b projects downward from the lower surface of the insulating base 1. That is, it is bent so as to be positioned in a parallel state at substantially the same position as the side wall portion 3.

The common contact piece 7 of the first embodiment made of metal
Are a pair of contact portions 7a, a terminal portion 7b, a plate-like portion 7c connected to the contact portion 7a and the terminal portion 7b, and a plate-like portion 7c.
The common contact piece 7 is buried and attached at the position of the main base portion 2 near the side wall portion 3 side, and the contact portion 7a is The terminal portion 7b protrudes upward from the upper surface of the insulating base 1 and is located in the clearance hole 3c of the side wall portion 3, and protrudes downward from the lower surface of the insulating base 1. It is bent at one end, that is, at substantially the same position as the side wall portion 3 so as to be positioned in parallel. The plate-like portion 7c is located on the inner surface of the side wall portion 3, and the receiving portion 7d is
It is provided to be exposed inside. As a result, it is in a prone mounting state that can be mounted with reference to the side wall 3 surface.

In this embodiment, a part of the plurality of contact pieces 6 is buried across the main base part 2 and the sub base part 5. The thin portion 4 connecting the main base portion 2 and the sub base portion 5 described above is formed. The thin portion 4 may be formed by embedding a plate-shaped metal member different from the contact piece 6 in the insulating base 1 to form the thin portion 4 with this metal member. The thin portion 4 connecting the base 2 and the sub-base portion 5 may be formed by the thin portion 4 made of an insulating material constituting the insulating base 1.

Next, a method of manufacturing the insulating base 1, the contact pieces 6, and the common contact piece 7 will be described with reference to FIGS. 13A and 13B. First, as shown in FIG. A plurality of holes 22 are provided in the plate 21 to form an upper cross section 21a and a lower cross section 21b. Further, by forming the hole 22, the loop-shaped portion 21 for forming the contact portion 7 a of the common contact piece 7 is formed in the hole 22 at the center of the metal plate 21.
c is provided, and a part of the loop-shaped portion 21c includes:
The terminal portion 7b of the common contact piece 7 is connected to the lower beam portion 21b by the connecting portion 21d. A plate-like portion 7c is formed at a position between the pair of contact portions 7a, and a cylindrical receiving portion 7d is formed by burring.
Is formed.

The loop portion 21c and the connecting portion 21
On both sides of d, the contact portion 6a of the contact piece 6 is connected to the upper beam portion 21a by the connecting portion 21e, and the terminal portion 6b of the contact piece 6 is connected to the lower beam portion 21b by the connecting portion 21f. The connection piece 21g is formed between the portion 6a and the terminal portion 6b.
The connecting piece 21g becomes the thin portion 4, and the lower portion of the contact piece 6a is further connected to the lower cross section 21b by a connecting portion 21h in order to ensure the holding of the contact piece 6a during molding. It is in a connected state.

The metal plate 21 constructed as described above
Is sandwiched by a molding die (not shown), and when a resin is injected into the forming die, as shown in FIG. 13B, the main base 2, side wall 3, and sub-base 3 of the insulating base 1 are formed. 5 are formed, and then cut at a desired position, the contact pieces 6 and the common contact pieces 7 are separated from the metal plate 21 and the contact portions 7a of the common contact pieces 7 are separated from the loop-shaped portions 21c. It becomes a pair of holding contact parts 7a, and as a result, the insulating base 1 as shown in FIG. 9 is manufactured.

FIGS. 14 to 17 show a second embodiment of the insulating base 1, the contact piece 6, and the common contact piece 7. In this embodiment, the contact with the first embodiment is different from that of the first embodiment. Only the shapes of the terminal portions 6b and 7b of the piece 6 and the common contact piece 7 are different,
Other configurations and the manufacturing method are the same as those of the first embodiment, and therefore, the same components are denoted by the same reference numerals and description thereof will not be repeated. That is, in the second embodiment, the terminal portions 6b, 7
b protrudes from the lower surface side of the insulating base 1 and its tip is
It is bent in a letter shape.

The cylindrical rotating body 8 of the first embodiment, which is made of an insulating molded product, is particularly, as shown in FIGS.
A shaft portion 8a provided on one end side, and a holding portion 8b formed to be connected to the shaft portion 8a and having a larger diameter than the shaft portion 8a;
End face 8 orthogonal to the rotation axis direction, which is one side of holding portion 8b
c is provided between the shaft portion 8a and the holding portion 8b, the end surface 8e which is the other side of the holding portion 8b and is orthogonal to the rotation axis direction, and is provided at the center portion. A hexagonal non-circular hole 8f and a locking portion 8g provided at an end of the outer periphery of the shaft portion 8a.

The cord member 9 of the first embodiment made of a metal plate
As shown in FIG. 26, in particular, a ring-shaped plate portion 9a forming a common pattern and a plurality of tongue pieces 9b bent from the inner peripheral portion of the plate portion 9a to form a code pattern are formed. Have. The cord member 9 is embedded and attached to the rotating body 8, a ring-shaped plate-like portion 9a forming a common pattern is located on an end face 8e, and a tongue piece 9b forming a code pattern is attached to a holding portion 8b. Is exposed on the outer circumferential surface of.

The method of manufacturing the rotating body 8 and the cord member 9 will be described with reference to FIGS.
As shown in FIG. 22, in the center of the hoop-shaped metal plate 25, a comb-shaped hole 26 is provided to form a tongue piece 9b. The tip of the tongue piece 9d has a chamfered shape, so that the length can be set long. Next, as shown in FIG. 23 and FIG.
7 to form the cross section 25a,
5a is formed with a plate-shaped portion 9a connected by a connecting portion 25b,
In addition, the tongue piece 9b is bent from the plate-like portion 9a. Next, as shown in FIG. 25, the plate-shaped portion 9a is
When the resin is injected into the cavity 30 of the two molds 28 and 29 while the tongue piece 9b is held by the groove 29a of the mold 29, the rotating body 8 is formed.
As shown in FIG. 3, when cutting is performed at the position of the line 31, the cord member 9 as shown in FIG. 26 is buried in the rotating body 8, and the production of the rotating body 8 and the cord member 9 is completed. In the step shown in FIG. 25, the groove 29a of the mold 29 is formed.
Is set slightly smaller than the size of the tongue piece 9b, the entrance of the groove 29a is formed in a tapered shape, and the tongue piece 9b is housed in the groove 29a without a gap. , Resin is not formed on the outer surface of the tongue piece 9b. Further, the mold 29 forms a part of the concave portion of the click uneven portion 8d at a position where the tongue piece 9b is pressed.

FIGS. 27 to 32 show a second embodiment of the rotating body 8 and the cord member 9. In this embodiment, the cord member 9 is fitted and attached to the rotating body 8. FIG.
And, in addition to the configuration of the first embodiment,
The outer circumferential surface of the holding portion 8b is provided with a plurality of grooves 8h in the direction of the rotation axis, and the other configuration is the same as that of the above-described embodiment. The description is omitted. In addition, the cord member 9
As shown in FIG. 1, a ring-shaped plate-shaped portion 9a forming a common pattern and a tongue piece 9b bent from the plate-shaped portion 9a to form a code pattern are formed in advance.

Then, as shown in FIG. 31, with the cord member 9 positioned on the end face 8e side of the rotating body 8, the tongue piece 9
When the tongue piece 9b is fitted into the groove 8h by press-fitting using the chamfered portion at the tip of b as a guide, as shown in FIGS. 32 and 33, the plate-like portion 9a is located on the end face 8e and the tongue piece 9b is The cord member 9 is attached to the rotating body 8 in a state where the cord member 9 is exposed on the outer circumferential surface of the holding portion 8b.

FIG. 33 shows the rotating member 8 and the cord member 9.
In the third embodiment, the cord member 9 is embedded in the rotating body 8 as in the first embodiment. However, a tapered portion 9c is provided at the tip of the tongue piece 9b. The flesh portion of the rotating body 8 is formed on the tapered portion 9c, and the tongue piece 9b is formed.
Is prevented from rising. Since other configurations are the same as those of the above-described embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted here.

The rotating body 8 and the cord member 9 having the constructions of the first, second and third embodiments are rotated by inserting the shaft 8a of the rotating body 8 into the hole 3b of the side wall 3. While being held as possible, the shaft portion 8a is supported by an exposed cylindrical receiving portion 7d (see FIG. 6) located in the hole 3b. When the rotating body 8 is mounted on the insulating base 1, the locking portion 8 g is pulled out from the hole 3 b to prevent the rotating body 8 from coming off, and the pair of contact portions 7 a of the common contact piece 7 have end faces. 8e, and comes into contact with the plate-shaped portion 9a, which is the common pattern of the cord member 9. When the rotating body 8 is attached to the insulating base 1, the plurality of contact pieces 6 are respectively arranged at positions opposite to each other with respect to the circumferential surface of the rotating body 8, and the code pattern of the code member 9 is formed. The contact piece 6 comes into contact with and separates from the tongue piece 9b, and the contact piece 6 is pressed against the rotating body 8 as shown in FIGS. At the position beyond the rotation center of No. 8, the pressure is suppressed.
And a pair of contact parts 6a are made to contact a code pattern with a phase difference.

Although the rotating body 8 has been described as having a cylindrical shape, it may have a cylindrical shape or a truncated cone shape. Further, since the tongue piece 9b is bent from the inner peripheral portion of the plate-like portion 9a, the connecting member 25b can be arranged at an arbitrary position on the outer periphery of the cord member 9, and the hoop is formed even when the interval between the tongue pieces 9b is reduced. Although continuous processing with a material is possible, the tongue piece 9b is
May be bent from the outer peripheral portion of. Furthermore, although the tongue piece 9b of the cord member 9 has been described as being provided on the outer circumferential surface of the cylindrical rotating body 8, the tongue piece 9b is provided on the inner circumferential surface of the cylindrical rotating body 8, The contact portion 6a of the piece 6 may be in contact therewith.

The engagement member 10 made of a metal plate is particularly
As shown in FIGS. 4 to 37, a rectangular plate-shaped base 10a,
The base 10a is cut and bent into a C-shape at the center, and has an engaging portion 10b having a convex portion at the tip, a circular hole 10c provided at a lower portion of the base 10a, and bent from both sides of the base 10a. A pair of side plates 10d, a cut-and-raised portion 10e provided on the side plate 10d, a T-shaped upper side plate 10g that is bent from the upper side of the base 10a and has a locking portion 10f at the distal end, and a lower side of the base 10a. Bent,
C-shaped lower side plate 10 having a rectangular hole 10h in the center
j.

The engaging member 10 is
The protrusion 2b is inserted into the hole 10c in accordance with the insulating base 1 such that b faces the end face 8c of the rotating body 8 provided with the uneven portion 8d. Thereafter, the upper side plate 10g is positioned on the upper wall portion 3d and pushed in, and the locking portion 10f is hung on the latch portion 3f, and the upper side plate 10g is positioned in the groove portion 3e. 3 attached. Simultaneously with the mounting of the upper side plate 10g, the lower side plate 10j is positioned on the lower surface of the main base portion 2 and pushed in, and the latch portion 2c is positioned in the hole 10h, and the lower side plate 10j is hooked on the latch portion 2c. Then, the lower side plate 10j is attached to the main base 2. In this way, the engaging member 10 is in a state of being attached to the rotating body 8 at a vertical position, and the side plate 10d is at a position of being located at the left and right positions with respect to the rotating body 8. I have. When the engaging member 10 is attached, the convex portion of the engaging portion 10b engages with the concave and convex portion 8d in a state where it can be disengaged from the concave and convex portion 8d provided on the end face 8c of the rotating body 8. Configures the click mechanism. Furthermore,
The engagement member 8, the contact piece 6, and the common contact piece 7 extend in the direction of the rotating body 8 with the insulating base 1 as a reference plane.

The encoder body E1 is formed by such a configuration. The mounting plate 11 of the first embodiment, which is made of a metal plate that can be soldered, is shown in FIGS.
As shown in FIG. 44, a flat plate portion 11c having a large circular hole 11a provided in the center portion and a small hole 11b provided in the lower portion, and a pair of flat plates 11c bent oppositely from both sides of the flat plate portion 11c. Arm 11d and this arm 11d
A rectangular hole 11e provided at the center of the arm 11d and an arm 11d
And a mounting portion 11f bent from the end of the mounting portion.

The mounting plate 11 as shown in FIG.
As shown in FIG. 44 to FIG. 44, first, the convex portion 2b of the insulating base 1 of the first embodiment is inserted into the small hole 11b while being positioned on the engaging member 10 side of the encoder body E1. Thereafter, the arm 11d is pushed in on the side plate 10d of the engagement member 10, the cut-and-raised portion 10e is located in the hole 11e, and the arm 11d is hooked on the cut-and-raised portion 10e. The attachment plate 11 is attached to the engagement member 10 by being snapped to the engagement member 10.

When the mounting plate 11 is mounted, as shown in FIG. 43, the flat plate portion 11c is superimposed on the outside of the plate-like base portion 10a of the engaging member 10, and the arm portion 11d is moved. It is attached to the side plate 10d of the engagement member 10 at a lateral position on the left and right with respect to the rotating body 8, and
The lower surface of the mounting portion 11f bent from the end of the arm portion 11d extending in the rotation axis direction of the rotating body 8 is positioned in a parallel state at one end of the insulating base 1, that is, at substantially the same position as the side wall portion 3. are doing.

As shown in FIG. 43, the encoder main body E1 to which the mounting plate 11 is mounted has the side wall 3 side mounted on the printed circuit board P1. At this time, the projection 3g is inserted into the hole 13 of the printed circuit board P1, and the encoder body E
1 is positioned, and the contact pieces 6, the terminal portions 6b and 7b of the common contact piece 7 and the mounting portion 11f of the mounting plate 11 are positioned on a wiring pattern (not shown) formed on the upper surface of the printed circuit board P1. It will be in the state of having done.

Then, the contact piece 6, constructed as described above,
The common contact piece 7 and the mounting plate 11 are surface-mounted on the wiring pattern by cream solder and mounted on the printed circuit board P1, whereby the encoder body E1 is in a state orthogonal to the rotation axis direction of the rotating body 8. Printed circuit board P1
, And the encoder body E1 is in an attached state by a face-down type.

The operation of the rotary encoder, which is a rotary electrical component having such a configuration, will be described. First, the rotary encoder 8 penetrates through the hole 11a of the mounting plate 11 and the engaging member 10 to the hole 8f of the rotating body 8. The rotating member 8 is engaged with an operation member (not shown) or penetrates a hole (not shown) of the printed circuit board P1.
When the operation member is rotated after the operation member is engaged with the hole 8f, the rotating body 8 and the code member 9 rotate with the shaft portion 8a as a support portion. At this time, the shaft portion 8a is connected to the metal receiving portion 7d.
The rotating body 8 is rotated by being supported by
Performs a click operation by engaging and disengaging with the engaging portion 10b, the tongue piece 9b comes into contact with and separates from the contact piece 6, and the common contact piece 7 constantly contacts the plate-like portion 9a. And a common contact piece 7 to generate a two-phase pulse signal.

FIGS. 45 to 50 show a second embodiment of the mounting plate. In this second embodiment, the mounting plate 12 is made of a metal plate which can be soldered and has a circular shape provided at the center. A flat plate portion 12c having a large hole 12a and a small hole 12b provided at a lower portion, a pair of arm portions 12d bent oppositely from both side portions of the flat plate portion 12c, and a central portion of the arm portion 12d. A rectangular hole 12e, a mounting portion 12f bent from a side end of the arm portion 12d,
Protrusion 12g provided on attachment portion 12f side of flat plate portion 12c
And

The mounting plate 12 as shown in FIG.
As shown in FIG. 50 to FIG. 50, similarly to the above-described embodiment, the encoder body E1 is positioned on the engagement member 10 side, and first, the convex portion 2b of the insulating base 1 of the second embodiment is inserted into the small hole 12b. I do. Thereafter, the arm 12d is connected to the side plate 10 of the engagement member 10.
d, the cut-and-raised portion 10e is located in the hole 12e, and the arm portion 12d is hooked on the cut-and-raised portion 10e, whereby the mounting plate 12 is snapped to the engagement member 10 and the mounting plate 12 is snapped. Is attached to the engagement member 10.

When the mounting plate 12 is mounted, as shown in FIGS. 48 to 50, the flat plate portion 12c is
0, and the arm 12d is attached to the side plate 10d of the engaging member 10 at the left and right lateral positions with respect to the rotating body 8 while being superposed on the outside of the plate-like base 10a.
The lower surface of the mounting portion 12f bent from the side end of the arm portion 12d extending in the rotation axis direction of the rotating body 8 has an L-shape of the contact piece 6 and the common contact piece 7 extending from the lower surface of the insulating base 1. Are located at substantially the same positions as the terminal portions 6b and 7b.

Then, as shown in FIGS. 49 and 50, the encoder main body E1 to which the mounting plate 12 is mounted has the lower surfaces of the main base 2 and the sub-base 5 opposed to the printed circuit board P1. The protrusion 12g is inserted into the hole 13 of the printed circuit board P1, the encoder body E1 is positioned, and the contact pieces 6, the terminal portions 6b and 7b of the common contact piece 7, and the mounting portion 12f of the mounting plate 12 are printed. The substrate is placed on a wiring pattern (not shown) formed on the upper surface of the substrate P1.

Then, the contact piece 6, constructed as described above,
The common contact piece 7 and the mounting plate 12 are surface-mounted on the wiring pattern by cream solder and mounted on the printed circuit board P1, whereby the encoder body E1 is in a state parallel to the rotation axis direction of the rotating body 8. The encoder main body E1 is attached to the printed board P1 and is in an attached state by a standing mold.

The operation of the rotary encoder, which is a rotary electrical component having such a structure, will be described. First, the rotary encoder 8 is inserted through the hole 12a of the mounting plate 12 and the engaging member 10 to the hole 8f of the rotating body 8. After the operating member (not shown) is engaged or the operating member is engaged with the hole 8f of the rotating body 8 from the opposite side and then the operating member is rotated, the rotating body 8 and the cord member 9 are rotated by the shaft portion. 8a rotates as a support. At this time, the shaft portion 8a rotates while being supported by the metal receiving portion 7d, and the rotating body 8 performs the click operation while the concave and convex portion 8d engages and disengages with the engaging portion 10b. The tongue piece 9b comes into contact with and separates from the contact piece 6, and the common contact piece 7 always contacts the plate-like portion 9a so that a two-phase pulse signal is generated between the contact piece 6 and the common contact piece 7. become.

The rotary electric component may be applied to a rotary variable resistor or the like in addition to the rotary encoder.
Although the cylindrical receiving portion 7d has been described as being in close contact with the inner peripheral surface of the hole 3b, the receiving portion 7d may be separated from the inner peripheral surface of the hole 3b.

[0052]

According to the rotary electric component of the present invention, a plate-like portion 7c made of a metal plate is embedded in the side wall portion 3, and a cylindrical receiving portion 7d is provided in the plate-like portion 7c. The shaft 8 a provided on the rotating body 8 made of synthetic resin is
Since it is rotatably supported by d, abrasion of the shaft portion 8a of the synthetic resin is small, and a long-life rotary electric component can be provided as compared with the related art. In addition, since the receiving portion 7d is made of metal and the shaft portion 8a is made of synthetic resin, slippage between them is good and smooth rotation can be performed.

The contact piece 7 made of a metal plate is buried in the insulating base, and the contact piece 7 and the plate-like portion 7c are connected to each other. The position between the receiving portions 7d provided on the plate-shaped portion 7c can be formed with high accuracy. Therefore, the mounting position of the rotating body 8 becomes accurate, and an accurate contact switching can be obtained. When the contact piece 7 is used as a common, static electricity generated by the rotational friction of the rotating body 8 can be dropped from the plate-like portion 7c to the ground via the contact piece 7.

Further, since the receiving portion 7d is located in the hole 3b provided in the side wall portion 3, the arrangement of the receiving portion 7d can be reduced, and a small-sized one can be obtained.

Further, since the receiving portion 7d is provided in close contact with the inner peripheral surface of the hole 3b, the supporting of the receiving portion 7d is ensured.
The rotating body 8 can be rotated in a stable state.

[Brief description of the drawings]

FIG. 1 is a front view of a rotary electric component according to the present invention.

FIG. 2 is a rear view of the rotary electric component of the present invention.

FIG. 3 is a top view of the rotary electric component of the present invention.

FIG. 4 is a bottom view of the rotary electric component of the present invention.

FIG. 5 is an exploded perspective view of the rotary electric component of the present invention.

FIG. 6 is a sectional side view of a main part of the rotary electric component of the present invention.

FIG. 7 is a sectional front view of a main part of the rotary electric component of the present invention.

FIG. 8 is a perspective view of a rotary electric component according to the present invention, in which an insulating base and a rotating body are combined.

FIG. 9 shows a first example of the insulating base according to the rotary electric component of the present invention.
The front view of an Example.

FIG. 10 is a side view of the first embodiment of the insulating base according to the rotary electric component of the present invention.

FIG. 11 is a bottom view of the first embodiment of the insulating base according to the rotary electric component of the present invention.

FIG. 12 is an explanatory view showing the relationship between the insulating base and the contact pieces according to the first embodiment, relating to the rotary electric component of the present invention.

FIG. 13 is an explanatory view showing a method of manufacturing an insulating base according to the rotary electric component of the present invention.

FIG. 14 is a front view of a second embodiment of the insulating base according to the rotary electric component of the present invention.

FIG. 15 is a side view of a second embodiment of the insulating base according to the rotary electric component of the present invention.

FIG. 16 is a bottom view of a second embodiment of the insulating base according to the rotary electric component of the present invention.

FIG. 17 is an explanatory view showing a relation between an insulating base and a contact piece according to a second embodiment of the rotary electric component of the present invention.

FIG. 18 is a diagram illustrating a first example of a rotating body according to the rotary electric component of the present invention.
The front view of an Example.

FIG. 19 is a diagram illustrating a first example of a rotating body according to the rotary electric component of the present invention.
The side view of an Example.

FIG. 20 is a diagram illustrating a first example of a rotating body according to the rotary electric component of the present invention.
The back view of an Example.

FIG. 21 is a diagram illustrating a first example of a rotating body according to the rotary electric component of the present invention.
Sectional side view of an Example.

FIG. 22 is an explanatory view showing a method of manufacturing a rotating body and a cord member according to the first embodiment, relating to a rotary electric component of the present invention.

FIG. 23 is an explanatory view showing a method of manufacturing the rotating body and the cord member according to the first embodiment, relating to the rotary electric component of the present invention.

FIG. 24 is a sectional view taken along line 24-24 in FIG. 23;

FIG. 25 is an explanatory view showing a method of manufacturing the rotating body and the cord member according to the first embodiment, relating to the rotary electric component of the present invention.

FIG. 26 is a perspective view of a cord member according to the rotary electric component of the present invention.

FIG. 27 shows a second example of the rotating body according to the rotary electric component of the present invention.
The front view of an Example.

FIG. 28 shows a second example of the rotating body according to the rotating electric component of the present invention.
The side view of an Example.

FIG. 29 is a view showing a second example of the rotating body according to the rotary electric component of the present invention.
The back view of an Example.

FIG. 30 shows a second example of the rotating body according to the rotary electric component of the present invention.
Sectional side view of an Example.

FIG. 31 is a perspective view showing a method of attaching a rotating body and a cord member according to a second embodiment of the rotary electric component of the present invention.

FIG. 32 is a front view showing a state in which the rotating body and the cord member according to the second embodiment are combined with each other, in the rotary electric component of the present invention.

FIG. 33 is a cross-sectional view showing a state in which a rotating body and a cord member according to a third embodiment are combined with each other, in a rotary electric component according to the present invention.

FIG. 34 is a front view of an engagement member according to the rotary electric component of the present invention.

FIG. 35 is a top view of an engagement member according to the rotary electric component of the present invention.

FIG. 36 is a bottom view of the engagement member according to the rotary electric component of the present invention.

FIG. 37 is a sectional view taken along line 37-37 in FIG. 35;

FIG. 38 is a first view of a mounting plate according to the rotary electric component of the present invention.
FIG.

FIG. 39 is a first view of a mounting plate according to the rotary electric component of the present invention.
The front view of an Example.

FIG. 40 is a view showing a first example of a mounting plate according to the rotary electric component of the present invention.
The side view of an Example.

FIG. 41 is a first view of a mounting plate according to the rotary electric component of the present invention.
The bottom view of an Example.

FIG. 42 is a perspective view showing a state in which the mounting plate of the first embodiment is mounted on the encoder main body according to the rotary electric component of the present invention.

FIG. 43 is a fragmentary cross-sectional view showing a state where the mounting plate of the first embodiment is mounted on the encoder main body in the rotary electric component of the present invention.

FIG. 44 is a perspective view showing the mounting of the mounting plate of the first embodiment to the encoder main body in the rotary electric component of the present invention.

FIG. 45 shows a second mounting plate of the rotary electric component according to the present invention.
The front view of an Example.

FIG. 46 shows a second example of the mounting plate according to the rotary electric component of the present invention.
The side view of an Example.

FIG. 47 is a second view of the mounting plate according to the rotary electric component of the present invention.
The back view of an Example.

FIG. 48 is a perspective view showing a state in which the mounting plate of the second embodiment is mounted on the encoder main body according to the rotary electric component of the present invention.

FIG. 49 is a rear view of the rotary electric component according to the present invention, showing a state where the mounting plate of the second embodiment is mounted on the encoder main body.

FIG. 50 is a side view showing a state in which the mounting plate of the second embodiment is mounted on the encoder main body in the rotary electric component of the present invention.

FIG. 51 is a perspective view of a conventional rotary electric component.

FIG. 52 is an exploded perspective view of a conventional rotary electric component.

FIG. 53 is a cross-sectional view showing a state in which a contact piece is pressed against a rotating body in a conventional rotary electric component.

FIG. 54 is a cross-sectional view showing a state in which an elastic plate is pressed against a rotating body in a conventional rotary electric component.

FIG. 55 is a perspective view of a rotating body according to a conventional rotary electric component.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulation base 2 Main base part 2a Depression 2b Convex part 2c Latch part 3 Side wall part 3b Hole 3c Relief part 3d Upper wall part 3e Groove part 3f Latch part 3g Projection 4 Thin part 5 Sub-base part 5a Convex part 5b Protrusions 6 Contact piece 6a Contact part 6b Terminal part 7 Common contact piece 7a Contact part 7b Terminal part 7c Plate-like part 7d Receiving part 8 Rotating body 8a Shaft part 8b Holding part 8c End face 8d Uneven part 8e End face 8f Hole 8g Lock Part 8h Groove part 9 Cord member 9a Plate part (common pattern) 9b Tongue piece (code pattern) 9c Taper part 10 Engaging member 10a Base 10b Engaging part 10c Hole 10d Side plate 10e Cut-and-raised part 10f Locking part 10g Upper side plate 10h Hole 10j Lower side plate 11 Mounting plate 11a Hole 11b Hole 11c Flat plate portion 11d Arm portion 11e Hole 11f Mounting portion 12 Mounting plate 12a Hole 12b Hole 12c Flat plate portion 12d Arm portion 12e Hole 12f Attachment portion 12g Convex portion 13 hole E1 Encoder main body P1 Printed circuit board 21 Metal plate 21a Upper beam 21b Lower beam 21c Loop-shaped portion 21d Connection 21e Connection 21f Connection 21g Connection Piece 21h connecting portion 22 hole 23 wire 25 metal plate 26 hole 27 hole 28 mold 29 mold 30 cavity 31 wire

Claims (4)

[Claims] An insulating base made of an insulating material provided with a side wall portion, and a rotating body made of an insulating material rotatably held on the side wall portion, wherein the side wall portion is made of a metal plate And a cylindrical receiving portion is provided on the plate portion, and a shaft provided on the rotating body is rotatably supported by the receiving portion. Mold electrical parts. 2. The rotary electric machine according to claim 1, wherein a contact piece made of a metal plate is embedded in the insulating base, and the contact piece is connected to the plate-shaped portion. parts. 3. The rotary electric component according to claim 1, wherein said receiving portion is located in a hole provided in said side wall portion. 4. The rotary electric component according to claim 3, wherein said receiving portion is provided in close contact with an inner peripheral surface of said hole.