JP2967262B2 - Rotary electronic component and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electronic component having an operation unit and an output unit, and more particularly to a small rotary electronic component in which a rotation ratio between the operation unit and the output unit is changed by a rotation transmitting mechanism.

[0002]

2. Description of the Related Art A conventional rotary electronic component will be described with reference to a multi-rotary variable resistor as shown in FIGS.

FIG. 10 is a perspective view of a multi-rotation type variable resistor, and FIG. 11 is a partial perspective view of FIG. FIG.
FIG. 1 is an exploded perspective view of these, and schematically shows main components. 55 is a base made of an insulating resin or the like,
A substrate 53 on which a resistor (not shown) and a plurality of terminals 67 are formed is insert-molded, and a plurality of projections 69 are provided on the upper surface. Further, a concave portion A61 and a locking piece 33 are formed on both side surfaces. Reference numeral 45 denotes a rotor which is a rotating body. A gear portion 47 forming a part of a rotation transmitting mechanism is formed on the outer peripheral portion, and a sliding surface which slides on a bottom surface with a resistor formed on the substrate 53 is provided. A child 65 is provided. A clutch spring 43 constituting a clutch mechanism is provided near the center. A housing 31 has a concave portion B31 formed on both sides and a base 55 on the bottom surface.
A concave portion (not shown) that fits with the projection 69 is provided. Reference numeral 21 denotes a shaft, on the upper surface of which a groove operable by a driver or the like is formed, and on the lower surface, a gear portion 23 which forms a part of a rotation transmission mechanism is formed. Reference numeral 1 denotes a substantially U-shaped cover made of an elastic member such as an elastic metal plate, and a pair of legs 3, 3 and fitting pieces 15, 1 on both side surfaces.
5. It has fitting holes 11,11.

A rotor fitting hole 59 provided in a base 55
A rotor 45, which is a rotating body having a slider 65 and a clutch spring 43, is rotatably inserted into the base 55, and the base 55 is inserted between the base 55 and the housing 29 with the square O-ring 41 interposed therebetween. The protrusion 69 formed on the upper surface of the housing 29 is fitted into a concave portion (not shown) formed on the bottom surface of the housing 29, and further, an annular O-ring is fitted into the shaft fitting hole 27 provided on the upper surface of the housing 29. In the state via 19,
Further, the shaft gear portion 23 is inserted into the shaft gear portion insertion hole 58 provided on the upper surface of the base 55, and the shaft gear portion 23 and the rotor gear portion 47 mesh with each other, so that the shaft 2
The shaft 21 is rotatably inserted so that the rotational movement of the shaft 1 is transmitted as the rotational movement of the rotor 45, and the leg 3 of the cover 1 is put on the concave part B 31 of the housing 29 and the concave part A 61 of the base 55, and provided on the cover 1. Fitted hole 11
And the locking piece 33 provided on the base 55 are fitted and locked, whereby the rotary electronic component 80 is manufactured.

[0005]

As described above, in the conventional rotary electronic component 80, the number of components is large due to its complicated mechanism, and these components are sequentially assembled as described above.
There was a problem that the working efficiency was very poor and the productivity was low. Further, the rotor 4 already incorporated in the base 55
The mounting position such as 5 is displaced by vibration or the like generated when the shaft 21 is press-fitted, and there is a problem that correction is required at the time of assembling.

The present invention has been made in view of the above-mentioned conventional drawbacks,
An object of the present invention is to provide a rotary electronic component and a method for manufacturing the same, which improve the working efficiency and productivity and eliminate the need for modification during assembly. Is what you do.

[0007]

In order to achieve the above-mentioned object, the present invention provides a cover having a substantially U-shaped cross section obtained by bending both ends of an elastic metal plate, an operation section comprising a housing and a shaft, An output unit including a base, a rotating body, and a terminal;
A rotation transmitting mechanism for transmitting the rotational movement of the shaft of the operating section as the rotational movement of the rotating body of the output section, wherein the cover has a plurality of pairs of legs formed at both ends thereof, and both sides of the housing of the operating section. Locking pieces are formed on both sides of the surface and the base of the output section, respectively, and the pair of legs of the cover, the locking pieces of the operation section and the locking pieces of the output section are individually fitted. The rotary electronic component is configured by holding the operation unit and the output unit in an integrated state. Also, a plurality of notches are provided annularly at both ends of the elastic metal plate material, and the both ends are bent in the same direction to form a plurality of pairs of legs and a plurality of pairs of fitting holes. A cover having a substantially U-shaped cross section, an operation unit including a housing and a shaft, an output unit including a base, a rotating body, and terminals, and a rotational motion of a shaft of the operating unit as a rotational motion of a rotating body of the output unit. A rotation transmitting mechanism for transmitting the power, a locking piece is formed on each of both side surfaces of the housing of the operation unit and both side surfaces of the base of the output unit, and a pair of fitting holes of the cover and the operation unit. The rotating electronic component is configured by fitting the locking piece and the locking piece of the output unit individually and holding the operation unit and the output unit in an integrated state. Furthermore, a cover having a substantially U-shaped cross section in which both ends of the elastic metal plate are bent, an operation unit including a housing and a shaft, an output unit including a base, a rotating body, and terminals, and a shaft of the operation unit A rotation transmitting mechanism for transmitting a rotational movement as a rotational movement of a rotating body of the output unit, wherein the cover has a plurality of pairs of legs formed at both ends thereof, and both sides of a housing of the operation unit and the output unit. Locking pieces are respectively formed on both side surfaces of the base, and the pair of legs of the cover, the locking pieces of the operation unit and the locking pieces of the output unit can be individually fitted. In the method for manufacturing a rotary electronic component, a temporary assembling step of an operating section for assembling a housing and a shaft, and a locking piece of the operating section after the temporary assembling step is fitted and locked to one pair of legs of a cover. Sub-assembly process and base A temporary assembling step of the output unit for assembling the rolling element and the terminal, and in a state where the sub-assembled operation unit is sandwiched between the cover, the locking piece of the output unit for which the temporary assembling step is completed is fixed to the cover. A rotary electronic component is manufactured by having a main assembling step of integrating the operation section and the output section by fitting and locking with one pair of legs.

[0008] In the rotary electronic component thus configured,
Since the operation unit and the output unit can be assembled separately, the work efficiency can be improved, the productivity can be improved, and the modification at the time of assembly can be made unnecessary.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In these embodiments, the same members as those of the conventional example are denoted by the same reference numerals, and redundant description of these reference numerals will be omitted.

[0010]

Embodiment

In the first embodiment of the present invention shown in FIGS. 1 to 5, reference numeral 1a denotes a cover made of an elastic metal plate, and a plurality of notches 7a and 9a are formed on both ends thereof by pressing or the like. It is formed in an annular shape (see FIG. 3). By bending both ends of the cover 1a in the same direction, a plurality of pairs of legs 3a and 5a and a plurality of pairs of fitting holes 11a and 13a are formed (see FIGS. 4 and 5). The base 55 and the housing 29a can be individually held by fitting the respective locking pieces 57, 33a provided on the base 55 and the housing 29a (see FIGS. 1 and 2).

For this reason, as shown in FIG. 1, the shaft 21 is inserted into the shaft fitting hole 27 provided in the housing 29a through the annular O-ring 19, and
7a, the engaging pieces 33a, 33a formed on both side surfaces of the housing 29a are fitted into a pair of fitting holes 13a, 13a which are locking mechanisms formed at both ends of the cover 1a. By stopping the operation, the operation unit 37a is held. The steps so far are referred to as a sub-assembly step of the operation unit 37a. Next, the slider 65 was attached to the rotor fitting hole 59 provided on the upper surface of the base 55 in which the ceramic substrate 53 on which the resistor (not shown), the terminal 67 and the like were formed was insert-molded. Insert the rotor 45, which is a rotating body,
The output spring 73a is temporarily assembled by disposing the clutch spring 43 substantially at the center of the rotor 45. Further, the protrusions 69, 69 provided on the upper surface of the base 55 via the square O-ring 41 between the operation unit 37a in which the sub-assembly process is completed and the output unit 73a in which the temporary assembly process is completed. Are fitted into recesses (not shown) provided on the lower surface of the housing 29a, and a pair of fitting holes 11a, 11a as another locking mechanism formed at both ends of the cover 1a.
Locking pieces 57, 57 formed on both sides of the base 55.
The operation unit 37a and the output unit 73
a can be held in an integrated state. This step is called a main assembling step. FIG. 2 shows the assembled structure. In the main assembling step, the shaft gear portion 23 is inserted into the shaft gear portion insertion hole 58, and the shaft gear portion 23 and the rotor gear portion 47 mesh with each other to form a rotation transmission mechanism. As a result, the rotational motion of the shaft 21 is transmitted to the rotor 45 via the shaft gear 23 and the rotor gear 47, and a desired resistance value can be set.

In the rotary electronic component configured as described above, the process can be divided into a sub-assembly process of the operation unit and a main assembling process of integrating the output unit. Can be measured, and productivity can be improved. Conventionally, when the shaft was press-fitted, there was a problem that the mounting position of the rotor or the like was shifted due to vibration, but in the present invention, since the shaft was already mounted at the fixed position in the sub-assembly process, the smoothness was obtained. Since the vibration applied to the rotor and the like is reduced, it is not necessary to correct the mounting position of the components such as the rotor.

FIGS. 6 and 7 show another example of the locking mechanism according to another embodiment of the present invention, in which a locking piece provided on a base and a housing is fitted to a fitting hole or a fitting piece of a cover. It shows a stopped state.

In FIG. 6, the leg 5 provided on the cover 1b is shown.
b and the fitting piece 17b are fitted and locked with the locking piece 33b provided on the housing 29b, whereby the operating portion 37b
The operating portion is formed by engaging and locking one locking portion for holding the lock, the annular leg 3b provided on the cover 1b, and the fitting piece 15b with the locking piece 57b provided on the base 55b. A locking mechanism is configured by another locking portion that holds the output portion 73b and the 37b in an integrated state. In FIG. 7, the annular leg 5c provided on the cover 1c and the fitting piece 17c are connected to the locking piece 3 provided on the housing 29c.
One locking portion that fits and locks with 3c, and the leg 3c and the fitting piece 15c provided on the cover 1c fits and locks with the fitting piece 57c or the recess A61c provided on the base 55c. The other locking portion forms a locking mechanism. Even if the locking mechanism is configured in this manner, the same effect as that of the first embodiment of the present invention can be obtained.

FIGS. 8 and 9 show an example in which the present invention is applied to a rotary electronic component other than a multi-rotary variable resistor.

FIG. 8 shows a configuration in which the output section 73d is a rotary pulse encoder. In this case, the rotating body is a rotor 45d provided with a code plate 46d,
The signal is detected by 5d. FIG. 9 shows the output unit 7.
3e is an air-varicon, and a rotating body in this case is a rotor plate 45 provided on a rotor rotating shaft 49e.
e, and the output value is changed depending on the degree of overlap with the stator plate 46e. Thus, the present invention is not limited to a multi-rotation type variable resistor, but a rotary pulse encoder,
The present invention can be applied to general rotary electronic components such as an air-varicon, and a variable magnetic capacitor (not shown) and a magnetic variable saturation variable inductor (not shown).

[0018]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) a sub-assembly step of the operation unit;
Since the process can be divided into a main assembling process in which the output unit is integrated, the work efficiency can be improved, and the productivity can be improved.

(2) When the shaft is press-fitted, since the shaft is already mounted at a fixed position in the sub-assembly process, the shaft can be smoothly assembled and vibration applied to the rotor and the like is reduced. ,
It is not necessary to correct the installation position of a component such as a rotor.

(3) The present invention is not limited to a multi-rotation type variable resistor, but general rotary electronic components such as a rotary pulse encoder, an air variable condenser, other variable magnetic capacitors, and a magnetic variable saturation variable inductor. And the same effects as (1) and (2) can be obtained.

[0022]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a rotary electronic component according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a completed rotary electronic component according to the first embodiment of the present invention.

FIG. 3 is an expanded view of a cover according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of the cover according to the first embodiment of the present invention.

FIG. 5 is a side view of the cover according to the first embodiment of the present invention.

FIG. 6 is a side view illustrating another locking mechanism of the present invention.

FIG. 7 is a side view illustrating another locking mechanism of the present invention.

FIG. 8 is a cross-sectional view showing another application example (a rotary pulse encoder) of the first embodiment of the present invention to a rotary electronic component.

FIG. 9 is a cross-sectional view showing an application example (air-varicon) of the first embodiment of the present invention to another rotary electronic component.

FIG. 10 is a perspective view of a finished product of a conventional rotary electronic component.

FIG. 11 is a partial perspective view of a finished product of a conventional rotary electronic component.

FIG. 12 is an exploded perspective view of a conventional rotary electronic component.

[Explanation of symbols]

1, 1a, 1b, 1c, 1d, 1e: cover, 2: shaft exposure hole, 3: leg, 3a, 3b, 3c, 3d, 3e: leg A, 5a, 5b, 5c, 5d, 5e: leg. Part B, 7a: Notch A, 9a: Notch B, 11: Fitting hole, 11a: Fitting hole A, 13a: Fitting hole B, 15: Fitting piece, 15a, 15b, 15c, 15d, 15e : Fitting piece A, 17a, 17b, 17c, 17d, 17e: Fitting piece B, 19, 41: O-ring, 21, 21d,
21e: shaft, 23, 23d, 23e: shaft gear portion, 25d, 25e: shaft rotating shaft, 27: shaft fitting hole, 29, 29a, 29b, 29c, 29d, 29e: housing, 31, 31a: recess B, 33a, 33b, 33c, 33d, 33e: locking piece B, 35a: intermediate rotor, 35b: intermediate rotor gear section, 35c: intermediate rotor rotating shaft, 37a, 37b, 37c, 37d, 37e: operating section, 39a, 39b, 39c, 39d, 39e: locking portion B, 43: clutch spring, 45, 45d:
Rotor, 45e: rotor plate, 46e: stator plate, 46d: code plate, 47, 47d:
Rotor gear part, 49d, 49e: rotor rotating shaft, 53, 53d,
53e: substrate, 55, 55b, 55c, 55d, 55e: base, 57, 57b, 57c, 57d, 57e: locking piece, 58: shaft gear part insertion hole, 59: rotor fitting hole, 61, 61c: recess A, 65, 65d:
Slider, 67, 67d, 67e: terminal, 69: projection, 71: locking portion, 71a, 71b, 71c, 71d, 71e: locking portion A, 73a, 73b, 73c, 73d, 73e: output portion, 80, 80a, 80b, 80c, 80d, 80e: rotary electronic components, A: bending position.

Claims (6)

(57) [Claims] 1. A cross section obtained by bending both ends of an elastic metal plate material.
A substantially U-shaped cover, an operation unit including a housing and a shaft, and an output unit including a base, a rotating body, and terminals;
A rotation transmitting mechanism that transmits the rotational movement of the shaft of the operation unit as the rotational movement of the rotating body of the output unit , wherein the cover is
A plurality of pairs of legs are formed at both ends thereof, and
On both sides of the housing and on both sides of the base of the output section
Each has a locking piece formed thereon, and each of the cover has a pair of legs.
And the locking piece of the operation section and the locking piece of the output section.
The operation unit and the output unit are integrated with each other.
A rotary electronic component, characterized in that the rotary electronic component is held in a state in which it is held . 2. A resilient on both ends of the metal sheet a plurality of the pair of cutout portions annularly a plurality of pairs of leg portions and a plurality of pairs by <br/> be bent processing the both end portions in the same direction The fitting hole of
The formed cover with a substantially U-shaped cross section, housing and chassis
From the operating part consisting of the shaft, the base, the rotating body and the terminals
Output section and the rotational movement of the shaft of the operation section.
A rotation transmission mechanism that transmits the rotational motion of the rotating body.
In addition, both sides of the housing of the operation unit and the base of the output unit
Each engaging piece is formed on both side surfaces of over scan, the cover
A pair of fitting holes, a locking piece of the operation unit, and the output unit;
With the locking pieces individually, and
A rotary electronic component characterized in that a force part and an integral part are held together . 3. The output unit is provided on a substrate having a base, a resistor and a terminal, a rotator having a part of a rotation transmitting mechanism, and a rotator sliding on the resistor on the substrate. 3. The rotary electronic component according to claim 1, wherein the rotary electronic component is a variable resistor including a slider. 4. The output section is provided on a substrate having a base, a stator plate and terminals, a rotating body having a part of a rotation transmitting mechanism, and a rotating body rotating with the stator plate on the substrate. 3. The rotary electronic component according to claim 1, wherein the rotary electronic component is an air variable condenser including a rotor plate. 5. The rotary pulse encoder according to claim 1, wherein said output section comprises a base having a base, a slider and terminals, and a rotating body having a part of a rotation transmitting mechanism and having a code plate formed thereon. 3. The rotary electronic component according to claim 1, wherein: 6.Cross section of both ends of elastic metal plate bent
Operation consisting of a U-shaped cover, housing and shaft
A working unit, an output unit consisting of a base, a rotating body and terminals,
Rotational motion of shaft of working part
And a rotation transmission mechanism for transmitting the rotation
A plurality of pairs of legs are formed at both ends of the operation unit.
On both sides of the housing and both sides of the base of the output section
Each of the locking pieces is formed, and each of the cover has a pair of legs.
The locking piece of the operation section and the locking piece of the output section are individually
Method of manufacturing rotary electronic component that can be separately fitted
At  Temporary assembling process of the operation unit for assembling the housing and shaft
And the operation unit where the temporary assembly process is completedThe locking piece of the coverOne
ofEngage and lock with a pair of legsSub-assembly process
And a temporary assembly of the output unit that assembles the base, rotating body and terminals
Process and the sub-assembled operation unitThe cover and
With it sandwiched betweenOutput section after temporary assembly process is completedof
Locking piece of coverAnotherEngage and lock with a pair of legs
ThatByThe operation unit and the output unitIntegrationLet
Main assembling processCharacterized by havingTo
Manufacturing method of rotary electronic components.