JP4136625B2 - Rotating electronic components - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary electronic component.
[0002]
[Prior art]
Conventionally, a rotary type is stored in a case, a shaft is inserted into a cylindrical bearing provided on the upper surface of the case, and the shaft and the rotary type are integrally rotated inside the case and only the shaft moves up and down by a predetermined stroke. It is connected so that it can be freely operated, and the shaft that protrudes from the upper surface of the case is rotated to rotate the rotating type object to operate the rotary type electric function unit (for example, rotary type switch) installed in the case, and the shaft There is a rotary electronic component having a structure in which a press-type electric function part (for example, a press switch) installed at the lower part of the rotary type object is operated by pressing the lower end of the shaft (see, for example, FIG. 1 of Patent Document 1). .
[0003]
However, in the rotary electronic component having the above-described structure, it has been difficult to reliably prevent rattling of the rotary object housed in the case. This is because the shaft support part that rotatably supports the rotary type is performed by supporting the rotary shaft protruding from the upper surface and the lower surface of the rotary type with a bearing provided inside the case. This is because the axial length of the shaft support portion is short and lacks the reliability of the shaft support. Further, in addition to the shaft support portion of the rotary type object, the shaft support portion must be provided on the upper portion of the case, which complicates the structure of the case. In particular, when the case is made of a metal plate, it is difficult to make such a complicated structure. For this reason, when the case is made of a metal plate, the shaft support of the rotary type object is rotated on the lower surface side of the rotary type object. It was performed only on the shaft, and it was more difficult to prevent the rattling. Even if the rotary object is not rattling and the rotary electronic component is not operated at all, the output of the rotary electrical function unit (for example, the rotary switch) may fluctuate due to external vibration or the like.
[0004]
[Patent Document 1]
JP-A-9-288933 gazette
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and an object of the present invention is to provide a rotary electronic component that can reliably prevent rattling of a rotary object housed in a case.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention includes a shaft in which a rotating type object is accommodated in a case, and is coupled with the rotating type object so as to be movable up and down by a predetermined stroke separately from the rotating type object. Projecting from the upper surface of the case, rotating the rotating type object by rotating the shaft, operating the rotary electrical function unit installed in the case, and setting the lower part of the rotating type object by pressing the shaft In a rotary electronic component having a structure for operating another electrical function part, a shaft part protruding upward is provided on the upper surface of the rotary mold, and the outer periphery of the shaft part is rotated by a bearing provided on the upper surface of the case. The shaft is freely supported, and the shaft engages with the rotary mold on the inner peripheral surface of the shaft support hole provided in the shaft portion of the rotary mold and rotates integrally, and can move up and down by a predetermined stroke within the rotary mold. To be Is supported by the supporting mechanism, the engagement further the axial support mechanism during insertion from the top of the shaft to the shaft axis bearing hole of the rotary object, provided in one of the inner periphery of the shaft periphery or shaft axis bearing hole Is inserted into a vertical groove in the vertical direction provided on either the inner periphery of the shaft shaft support hole or the outer periphery of the shaft, the shaft is moved downward, and then the shaft is rotated in the rotational direction to Bring the joint part to the vertical groove with a terminal end in the vertical direction provided on either the inner periphery of the shaft shaft support hole or the outer periphery of the shaft, and then move the shaft upward to move the engaging part in the vertical direction with terminal It is characterized by having a mechanism housed in the groove . Further, the present invention is characterized in that the vertical groove dimension of the vertical groove with the end is made longer than the vertical stroke dimension of the shaft so that the engaging portion stays in the vertical groove with the terminal. To do. The shaft portion of the rotary mold projects upward from the base portion covering the upper surface of the rotary mold body of the case, and the bearing of the case covers the shaft portion of the rotary mold with substantially the entire inner peripheral surface thereof. It is preferable that it is provided so as to project upward.
[0007]
The present invention also includes an up and down direction groove provided on the inner periphery of the shaft shaft support hole, an up and down direction groove followed by a rotation direction groove and a rotation direction groove followed by a rotation direction groove and a vertical end. All of the lower ends of the vertical grooves are open to the lower surface of the rotary mold.
Further, the present invention is characterized in that the engaging portion is provided in a protruding shape at a left and right opposing position on the outer peripheral side surface of the lower portion of the shaft.
In the invention, it is preferable that the rotary mold is an integrally molded product of synthetic resin, and the cylindrical shaft portion is provided at the center of the upper surface of the substantially disk-shaped base portion.
Further, the present invention is characterized in that the other electrical functional unit installed at the lower part of the rotary object is a push switch.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a shaft 10 and a rotary mold 30 used in the present embodiment, and FIG. 2 is a side sectional view of a rotary electronic component 1 configured using the shaft 10 and the rotary mold 30. . As shown in FIG. 2, in the rotary electronic component 1, the rotary mold 30 is accommodated in a case 90 including an upper case 91 and a lower case 101, and the shaft 10 is attached to the rotary mold 30. A press-type electrical function unit (hereinafter referred to as “press switch member” in this embodiment) 60 is installed on the lower surface of the slab. A click plate 70 is sandwiched between the upper case 91 and the lower case 101, and a slider 80 is fixed to the lower surface of the rotary mold 30. Each component will be described below.
[0009]
As shown in FIG. 1, the shaft 10 is an integrally molded product of synthetic resin, is substantially cylindrical, and has a lower outer diameter smaller than an upper outer diameter, so that a knob mounting portion 11 and an insertion portion are vertically installed. 15 and a columnar pressing portion 19 having a further reduced outer diameter from the lower surface of the insertion portion 15. A cut surface 13 is provided on the side surface of the knob mounting portion 11. Protruding engagement portions 17 and 17 are provided at left and right opposing positions on the outer peripheral side surface of the lower portion of the insertion portion 15.
[0010]
The rotary mold 30 is an integrally molded product of synthetic resin, and is configured by providing a cylindrical shaft 41 at the center of the upper surface of a substantially disc-shaped base 31. The outer diameter of the shaft portion 41 is formed to have substantially the same dimension as the inner diameter of a bearing 95 (see FIG. 2) provided in the upper case 91 described below. A shaft shaft support hole 43 that penetrates in the vertical direction (the vertical movement direction of the shaft 10) is provided in the center of the shaft portion 41, and the shaft 10 extends from the upper surface of the shaft portion 41 to a position opposed to the inner peripheral surface thereof. A vertical groove 45 directed downward in the vertical movement direction, a rotational groove 47 directed to the rotational direction (right rotational direction) of the shaft 10 following the vertical groove 45, and a rotational groove 47 directed to the rotational direction groove 47 of the shaft 10. A vertical groove with a terminal 49 having a terminal that extends upward in the vertical movement direction is provided. The vertical groove 45, the rotational groove 47, and the terminal vertical groove 49 are formed in dimensions to insert and guide the engaging portion 17 of the shaft 10, and constitute a shaft support mechanism together with the engaging portion 17. Yes. Note that the lower ends of the vertical groove 45, the rotational groove 47, and the terminated vertical groove 49 are all open to the lower surface of the rotary mold 30. Next, the base 31 has a disk shape, and a click engagement portion 33 formed of ring-shaped irregularities is formed on the upper surface thereof, and the lower case 101 is pivotally supported as shown in FIG. A projecting shaft support portion 35 for pivotally supporting the rotary object 30 is provided in the hole 109, and a guide hole 37 penetrating through the pressing portion 19 of the shaft 10 is provided at the center thereof. It is configured.
[0011]
The upper case 91 is made of a metal plate (however, may be a synthetic resin or the like), and is configured by providing a cylindrical bearing 95 protruding upward in the center of a flat plate-like base portion 93. The bearing 95 is formed in a dimension shape that supports the outer periphery of the shaft portion 41 of the rotary object 30 without backlash.
[0012]
The lower case 101 is configured by forming a bottom portion 107 and a side wall 111 by molding a molding resin on a lower surface and an outer peripheral portion of a switch pattern forming member 103 having a terminal 105 connected to one end thereof. A shaft support hole 109 is provided at the center of the bottom portion 107 so as to pass through the switch pattern forming member 103 and the bottom portion 107 and rotatably support the shaft support portion 35 of the rotary mold 30. Note that the switch pattern forming member 103 may be a thin metal plate itself formed into a switch pattern shape by pressing or the like, or a switch pattern formed on a flexible substrate, or any other type of member. As long as the switch pattern is formed on the surface, it is sufficient.
[0013]
The pressing switch member 60 is configured by placing a substantially dome-shaped reversal plate 63 on the upper surface of the switch contact forming member 61. The switch contact forming member 61 is provided with a pair of metal plate contacts 65, 67 at a position facing the center of the reversing plate 63 and a position contacting the outer periphery of the reversing plate 63. The metal terminals 66 and 68 are drawn out. When the reversing plate 63 is pressed, it reverses to generate a click feeling, and at the same time, the contacts 65 and 67 are turned on. Needless to say, the structure of the pressing switch member 60 is not limited to the above structure. For example, instead of embedding the contacts 65 and 67 in the switch contact forming member 61, a flexible substrate on which a contact pattern is printed is installed on the switch contact forming member 61. Alternatively, the inversion plate 63 may be omitted to form a push switch without a sense of clicking, and various electric function units other than the switch may be used as long as they can be electrically operated by pressing. Any structure can be used as long as it is an electric functional part having a structure operated by the pressing part 19 at the lower end of the shaft 10.
[0014]
The click plate 70 is made of a thin plate-like elastic metal plate, and a pair of arm portions 71 and 71 are provided on a part of the click plate 70 and bent slightly downward, and elastic contact portions 73 and 73 are provided at the center of the arm portions 71 and 71. Configured.
[0015]
The slider 80 is made of a thin plate-like elastic metal plate, and is configured to be fixed to the lower surface of the rotary mold 30 and provided with a sliding booklet 81 at a part thereof.
[0016]
In order to assemble the rotary electronic component 1 with a push switch, the insertion portion 15 of the shaft 10 is first inserted into the shaft shaft support hole 43 of the rotary mold 30 having the slider 80 previously attached to its lower surface in FIG. To do. At that time, the engaging portion 17 of the shaft 10 is inserted into the vertical groove 45 inside the shaft support hole 43, the shaft 10 is pushed down to the lowest position with respect to the rotary mold 30, and the shaft 10 is rotated (right And the engaging portion 17 is introduced into the rotational groove 47 to reach the vertical groove 49 with termination, and the shaft 10 is further moved upward to bring the engaging portion 17 into the vertical groove 49 with termination. Store it. The insertion portion 15, the engaging portion 17, the shaft shaft support hole 43, the vertical groove 45, the rotation direction groove 47, and the terminal vertical shaft 49 constitute a shaft support mechanism. At this time, the pressing portion 19 of the shaft 10 is inserted into the guide hole 37 (see FIG. 2) of the rotary mold 30. In this embodiment, the cylindrical insertion portion 15 is rotatably inserted into the circular shaft shaft support hole 43 so that the shaft 10 is pivotally supported on the rotary object 30. By simply forming the shaft, the shaft 10 can be securely supported with respect to the rotary object 30 without play.
[0017]
Next, in FIG. 2, the click plate 70 is arranged below the upper case 91, and then the knob mounting portion 11 of the shaft 10 integrated with the rotary mold 30 into the bearing 95 from below the upper case 91. The shaft portion 41 of the rotary mold 30 is inserted, and then the lower case 101 is disposed on the lower side thereof. At this time, the shaft support portion 35 of the rotary mold 30 is inserted into the shaft support hole 109 of the lower case 101. Then, the press switch member 60 is disposed below the lower case 101, and the tongue-like locking piece 97 provided in the upper case 91 facing downward is bent at the lower side of the press switch member 60. The members are fixed together, whereby the assembly of the rotary electronic component 1 is completed.
[0018]
At this time, the elastic contact portion 73 of the click plate 70 is elastically contacted with the click engaging portion 33 of the rotary mold 30, and the sliding booklet 81 of the slider 80 is elastically contacted with the switch pattern forming member 103. Further, the lower end of the pressing portion 19 of the shaft 10 abuts on the center of the upper surface of the reversing plate 63, whereby the shaft 10 is pushed upward, and the knob mounting portion 11 of the shaft 10 and the upper surface of the shaft portion 41 of the rotary mold 30. A gap a corresponding to the vertical stroke of the shaft is formed between the two. Also, the rotary type object 30 with the slider 80 attached and the lower case 101 to which the switch pattern forming member 103 is attached constitutes a rotary type electric functional part (in this embodiment, “rotary type switch mechanism part”). Yes.
[0019]
In the rotary electronic component 1 configured as described above, when the shaft 10 is rotated, the engaging portion 17 of the shaft 10 is engaged with the vertical groove 49 with a terminal end of the rotary mold 30, so the rotary mold 30. Rotates integrally therewith, whereby the sliding booklet 81 of the slider 80 slides on the switch pattern forming member 103 to change the output of the terminal 105. At the same time, the elastic contact portion 73 of the click plate 70 is engaged and disengaged from the click engagement portion 33 of the rotary object 30 to produce a click feeling.
[0020]
Next, when the shaft 10 is pressed downward (downward of the rotation axis of the shaft 10), as shown in FIG. 3, the shaft 10 slides downward in the rotary mold 30, so that the pressing portion 19 is moved. The reversing plate 63 is pressed and deformed, and the contacts 65 and 67 are turned on while generating a click feeling. At this time, the lower surface of the knob mounting portion 11 of the shaft 10 contacts the upper surface of the shaft portion 41 of the rotary mold 30. At this time, the vertical groove dimension of the vertical groove 49 with termination is made longer than the stroke dimension a of the shaft 10 so that the engagement portion 17 of the shaft 10 stays in the vertical groove 49 with termination. The part 17 does not move to the rotational groove 47 side and the engagement between them is not released. When the pressure on the shaft 10 is released, the reversing plate 63 automatically returns to its original shape, the contacts 65 and 67 are turned off, and the shaft 10 is also pushed up to automatically return to the original position shown in FIG.
[0021]
In the rotary electronic component 1, the shaft portion 41 of the rotary mold 30 is pivotally supported by the bearing 95 of the upper case 91, and the shaft support portion 35 of the rotary mold 30 is pivoted by the shaft support hole 109 of the lower case 101. As a result, the upper and lower sides of the rotary mold 30 are securely pivoted, so that the rotary mold 30 can be pivotally supported with respect to the stationary member such as the case 90. In particular, in this embodiment, a shaft portion 41 protruding upward is provided on the upper surface of the rotary mold 30, and the outer periphery of the shaft portion 41 is rotatably supported by a bearing 95 provided on the upper surface of the upper case 90. Therefore, the bearing 95 of the upper case 90 can cover and support the shaft portion 41 of the rotary mold 30 with substantially the entire inner peripheral surface thereof, and can easily increase the bearing area and the lower shaft support portion 35 and the upper portion. The distance between the shaft portion 41 and the shaft portion 41 can be increased, and the shaft support of the rotary mold 30 can be reliably performed. For this reason, when the rotary electronic component 1 is not operated at all, even if external vibration or the like is applied, the rotary electrical functional unit (rotary switch functional unit) does not rattle and the output thereof does not fluctuate. .
[0022]
Further, since the shaft 10 is supported in a shaft support hole 43 provided in the shaft portion 41 of the rotary mold 30, the upper case 90 does not need to support the shaft 10. Only the shaft support of the rotary object 30 is required, and the upper case 90 has a simple structure for the shaft support. Therefore, even if the upper case 90 is made of a metal plate that is difficult to process in a complicated manner, it is possible to reliably prevent the rotating object 30 from rattling.
[0023]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited.
[0024]
For example, in the above-described embodiment, the shaft 10 is supported by the shaft 10, the engaging portion 17 is provided in the shaft 10, and the vertical groove 45, the rotational groove 47, and the vertical direction with a terminal end are provided in the shaft shaft support hole 43 of the rotary mold 30. Constructed with a groove 49, on the contrary,
An engaging portion protruding from the inner peripheral surface of the shaft shaft support hole 43 is provided, and this engaging portion is provided on the outer periphery of the insertion portion 15 of the shaft 30 in the vertical direction groove and the vertical direction groove. The shaft support mechanism may be configured by inserting into a rotation direction groove extending in the rotation direction and a vertical groove with a terminal end extending in the vertical direction following the rotation direction groove.
[0025]
Further, for example, in the above-described embodiment, the other electrical function unit 60 including the press switch is operated at the lower end of the shaft 10, but the present invention is not limited thereto, and the other electrical function unit 60 is accompanied by the vertical movement of the shaft 10. Thus, it may be a slide-type electrical function unit that slides in the vertical direction, a rotary-type electrical function unit that operates in the rotation direction as the shaft 10 moves up and down, and the like.
[0026]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to reliably prevent the rotation type object housed in the case from rattling. Its structure is simple and easy to assemble.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a shaft 10 and a rotary mold 30 used in an embodiment of the present invention.
FIG. 2 is a side sectional view showing a rotary electronic component 1 according to an embodiment of the present invention.
FIG. 3 is an operation explanatory view of the rotary electronic component 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotary electronic component 10 Shaft 11 Knob attachment part 15 Insertion part (shaft support mechanism)
17 Engagement part (shaft support mechanism)
19 Pressing part 30 Rotating type object (Rotating electrical function part)
31 Base 33 Click engaging portion 35 Shaft support portion 37 Guide hole 41 Shaft portion 43 Shaft shaft support hole (shaft support mechanism)
45 Vertical groove (shaft support mechanism)
47 Rotating direction groove (shaft support mechanism)
49 Vertical groove with end (shaft support mechanism)
60 Press switch member (other electrical function part)
61 Switch contact forming member 63 Reversing plate 65, 67 Contact 66, 68 Metal terminal 70 Click plate 80 Slider (rotary electrical function part)
90 Case 91 Upper case 93 Base 95 Bearing 101 Lower case 103 Switch pattern forming member (rotary electrical functional part)
105 terminals (rotary electrical function part)
107 Bottom 109 Shaft support hole 111 Side wall

Claims (7)

A rotating type object is stored in the case, and a shaft that is rotated integrally with the rotating type object and coupled to be movable up and down for a predetermined stroke separately from the rotating type object protrudes from the upper surface of the case and rotates the shaft. In the structure of rotating the rotary object with the rotary type electric function part installed in the case and operating the other electric function part installed under the rotary type object by pressing the shaft In rotary electronic components,
A shaft portion protruding upward is provided on the upper surface of the rotary mold, and the outer periphery of the shaft is rotatably supported by a bearing provided on the upper surface of the case. Further, the shaft is disposed in the shaft portion of the rotary mold. The shaft support hole is provided on the inner peripheral surface of the shaft support hole so as to engage with the rotary mold and rotate integrally, and is supported by a support mechanism so as to be movable up and down by a predetermined stroke within the rotary mold .
Further, when the shaft is inserted into the shaft shaft support hole of the rotary type from above, the shaft support mechanism has an engagement portion provided on either the shaft outer periphery or the shaft shaft support hole inner periphery in the shaft shaft support hole. Insert the shaft in the up-down direction groove on the other of the circumference or the outer circumference of the shaft and move the shaft downward, and then rotate the shaft in the direction of rotation to place the engaging part in the shaft support hole It reaches the vertical groove with an end in the vertical direction provided on either the circumference or the outer periphery of the shaft, and then moves the shaft upward to store the engaging portion in the vertical groove with the end A rotary electronic component comprising a mechanism . The vertical groove dimension of the vertical groove with a terminal is made longer than the vertical stroke dimension of the shaft so that the engaging portion stays in the vertical groove with the terminal. The rotary electronic component as described. The shaft part of the rotary mold projects upward from the base part covering the upper surface of the rotary mold of the case, and the bearing of the case covers and supports the shaft part of the rotary mold with its inner peripheral surface. The rotary electronic component according to claim 1, wherein the rotary electronic component is provided so as to protrude upward. Up and down direction grooves provided on the inner periphery of the shaft shaft support hole, extending in the up and down direction, following the up and down direction groove, rotating in the rotating direction, and lower end of the up and down end groove extending in the up and down direction following the rotating direction groove 4. The rotary electronic component according to claim 1, wherein both are open on a lower surface of the rotary mold. The rotary electronic component according to claim 1, 2, 3, or 4, wherein the engaging portion is provided in a protruding shape at a position facing the left and right of the outer peripheral side surface of the lower portion of the shaft. The said rotation type | mold object is a synthetic resin integral molding, and is provided with the said cylindrical axial part in the center of the upper surface of the substantially disk-shaped base part, The Claim 1 or 2 or 3 characterized by the above-mentioned. Or the rotary electronic component of 4 or 5. The rotary electronic component according to claim 1, 2, 3, 4, 5, or 6, wherein the other electrical function unit installed at a lower portion of the rotary type object is a push switch.

Images