JP2006004914A - Rotation type electric part - Google Patents

Rotation type electric part Download PDF

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Publication number
JP2006004914A
JP2006004914A JP2005112411A JP2005112411A JP2006004914A JP 2006004914 A JP2006004914 A JP 2006004914A JP 2005112411 A JP2005112411 A JP 2005112411A JP 2005112411 A JP2005112411 A JP 2005112411A JP 2006004914 A JP2006004914 A JP 2006004914A
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Japan
Prior art keywords
shaft
knob
main shaft
knob mounting
end side
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Granted
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JP2005112411A
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JP4540527B2 (en
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Shinichi Mizobuchi
慎一 溝渕
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Priority to JP2005112411A priority Critical patent/JP4540527B2/en
Priority to CNB2005100713175A priority patent/CN100550243C/en
Priority to KR1020050041943A priority patent/KR100658410B1/en
Publication of JP2006004914A publication Critical patent/JP2006004914A/en
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Publication of JP4540527B2 publication Critical patent/JP4540527B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/001—Thumb wheel switches
    • H01H19/003—Thumb wheel switches having a pushbutton actuator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/016—Protection layer, e.g. for legend, anti-scratch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/058—Actuators to avoid tilting or skewing of contact area or actuator

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Braking Arrangements (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotation type electric part capable of restraining the backlash of an operation shaft by a simple structure without using any spring member. <P>SOLUTION: The rotation type electric part comprises housings 1, 10 each having a cylinder-shaped bearing 1b at one end side, and housing parts 1c, 10a at other end sides; a rotation shaft 2 of which the top end side protrudes from the bearing 1b rotatably held by the bearing 1b; and rotation detecting means arranged in the housing parts 1c, 10a each detecting the rotation of the rotation shaft 2. The rotation shaft 2 is composed of a main shaft 3 inserted into the bearing 1b, and a knob mounting part 4 on which an external knob 5 can be mounted integrally formed with the main shaft 3 so as to cover the outer peripheral face of the top end side of the bearing 1b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、回転型電気部品の構造に係り、特に回転軸の先端に別体の外装つまみを取付けて電子機器などの操作パネルに使用される回転型電気部品の構造に関する。   The present invention relates to a structure of a rotary electric component, and more particularly to a structure of a rotary electric component used for an operation panel of an electronic device or the like by attaching a separate exterior knob to the tip of a rotary shaft.

従来の回転型電気部品の構造としては、操作軸のがたつきを抑えるために、枠体の外方に、挿通孔から突出される操作軸の一端部を押圧し、常時、操作軸の操作部をケ−スから突出する方向へ付勢するばね部材を取付けるようにした構造のものが知られている（例えば、特許文献１参照）。   In order to suppress the shakiness of the operating shaft, the conventional rotary electrical component has a structure in which one end of the operating shaft protruding from the insertion hole is pressed outward from the frame body, and the operating shaft is always operated. There is known a structure in which a spring member for urging the portion in a direction protruding from the case is attached (see, for example, Patent Document 1).

以下、従来の回転型電気部品の構造を図に基づいて説明する。
図１２は従来の回転型電気部品を示す断面図、図１３は板ばねを示す正面図である。 Hereinafter, the structure of a conventional rotating electrical component will be described with reference to the drawings.
FIG. 12 is a sectional view showing a conventional rotary electric component, and FIG. 13 is a front view showing a leaf spring.

図において、ケース３１は、合成樹脂などの絶縁材、あるいは金属材のダイキャストなどにより下面が開口された箱状に形成されている。このケース３１の上面側には、後述する操作軸３２が挿通される軸孔３１ａを有し、操作部３２ａの先端が外方へ突出される円筒状の軸受け部３１ｂが一体的に突出されて形成されている。また、前記軸受け部３１ｂに連設して下面側の開口内に後述する回転板３３等を収納する収納部３１ｃが形成されたものとなっている。   In the figure, the case 31 is formed in a box shape whose lower surface is opened by an insulating material such as a synthetic resin or a die-cast metal material. On the upper surface side of the case 31, there is a shaft hole 31a through which an operation shaft 32 to be described later is inserted, and a cylindrical bearing portion 31b from which the tip of the operation portion 32a protrudes outward is integrally protruded. Is formed. In addition, a storage portion 31c that is connected to the bearing portion 31b and stores a later-described rotating plate 33 and the like is formed in the opening on the lower surface side.

操作軸３２は、合成樹脂などの絶縁材、あるいは金属材のダイキャストなどで略円柱状に形成されており、この操作軸３２の先端側は、前記軸受け部３１ｂの軸孔３１ａから突出されて図示しない操作つまみが取り付けられる操作部３２ａとなっている。また、前記操作軸３２の中間部には、前記操作部３２ａより太径でかつ小判状からなる回転駆動部３２ｂが設けられ、この回転駆動部３２ｂが後述する回転板３３と係合されることで、前記操作軸３２の回転に伴って回転板３３が回転動作されるものとなっている。また、前記操作部３２ａの他端側には、回転板３３の軸挿入部３３ｂに挿入される第１の支軸部３２ｃが設けられ、この第１の支軸部３２ｃの先端には、後述する枠体３９の挿通孔３９ａに挿通される第２の支軸部３２ｄが設けられている。   The operation shaft 32 is formed in a substantially cylindrical shape by an insulating material such as a synthetic resin or a metal die-casting, and the distal end side of the operation shaft 32 protrudes from the shaft hole 31a of the bearing portion 31b. An operation unit 32a to which an operation knob (not shown) is attached is provided. Further, an intermediate portion of the operation shaft 32 is provided with a rotation driving unit 32b having a diameter larger than that of the operation unit 32a and having an oval shape, and the rotation driving unit 32b is engaged with a rotation plate 33 described later. Thus, the rotating plate 33 is rotated as the operation shaft 32 rotates. Further, a first support shaft portion 32c to be inserted into the shaft insertion portion 33b of the rotating plate 33 is provided on the other end side of the operation portion 32a, and a distal end of the first support shaft portion 32c is described later. A second support shaft portion 32d that is inserted through the insertion hole 39a of the frame body 39 is provided.

回転板３３は、合成樹脂などの絶縁材で略円盤状に形成されており、この回転板３３の中央には、前記操作軸３２の回転駆動部３２ｂが挿入され係合される軸係止部３３ａが形成されている。また、この軸係止部３３ａに連続して軸挿入部３３ｂが形成され、この軸挿入部３３ｂに前記操作軸３２の第１の支軸部３２ｃが挿入されるものとなっている。また、前記回転板３３の上面側には、複数の凹凸部からなる環状のカム山部３３ｃが設けられており、また、前記ケース３１の前記収納部３１ｃの天井面側にはこのカム山部３３ｃに対向してばね性を有するクリック板３４が設けられている。   The rotating plate 33 is formed in a substantially disk shape with an insulating material such as synthetic resin, and a shaft locking portion into which the rotation driving portion 32b of the operation shaft 32 is inserted and engaged in the center of the rotating plate 33. 33a is formed. A shaft insertion portion 33b is formed continuously with the shaft locking portion 33a, and the first support shaft portion 32c of the operation shaft 32 is inserted into the shaft insertion portion 33b. An annular cam crest 33c composed of a plurality of concave and convex portions is provided on the upper surface side of the rotating plate 33, and the cam crest is formed on the ceiling surface side of the storage portion 31c of the case 31. A click plate 34 having a spring property is provided opposite to 33c.

また、前記回転板３３の下面側には、導電性の金属材で回路パターン（図示せず）が形成された導体板３５が取り付けられており、また、前記ケース３１の前記収納部３１ｃの開口側にはこの導体板３５に対向した位置に、回路パターンと接離される摺動片３６が配設されたウエハー３７が配設されたものとなっており、このウエハー３７には接続端子３８が設けられている。   A conductive plate 35 having a circuit pattern (not shown) formed of a conductive metal material is attached to the lower surface side of the rotating plate 33, and the opening of the housing portion 31c of the case 31 is attached. On the side, a wafer 37 provided with a sliding piece 36 that is in contact with and separated from the circuit pattern is provided at a position facing the conductor plate 35, and a connection terminal 38 is provided on the wafer 37. Is provided.

枠体３９は、略矩形状に形成されており、この枠体３９の中央には、挿通孔３９ａが設けられ、この挿通孔３９ａに前記操作軸３２の他端側に設けられた第２の支軸部３２ｄが挿通され突出するように配設されている。また、前記枠体３９の四角部には、折曲片３９ｂが設けられており、この折曲片３９ｂを屈曲することにより、枠体３９の下側に後述する板ばね４０を重ね合わせて取り付けるものとなっている。   The frame body 39 is formed in a substantially rectangular shape, and an insertion hole 39a is provided in the center of the frame body 39. A second hole provided on the other end side of the operation shaft 32 in the insertion hole 39a. The support shaft portion 32d is inserted and protruded. Further, a bent piece 39b is provided at a square portion of the frame 39, and a leaf spring 40 described later is attached to the lower side of the frame 39 by bending the bent piece 39b. It has become a thing.

板ばね４０は、ばね性を有する金属材で形成され、この板ばね４０の中央が湾曲されて湾曲部４０ａが形成されている。この板ばね４０は、前記枠体３９の下面側に、前記枠体３９に設けられた前記挿通孔３９ａを塞ぐとともに、前記枠体３９に重ね合わされて固着されており、前記枠体３９とともに前記ケース３１の開口した前記収納部３１ｃの下面側に一体的に取り付けられるものとなっている。また、前記湾曲部４０ａが、前記挿通孔３９ａから突出される前記操作軸３２の第２の支軸部３２ｄの先端を押圧し、常時、前記操作軸３２の操作部３２ａを前記ケース３１の軸受け部３１ｂから突出する方向へ付勢している。
そして、前記操作軸３２にがたつきが発生してしまう場合においても、前記板ばね４０の付勢力によって操作軸３２のがたつきを防止できるものとなっている。 The leaf spring 40 is formed of a metal material having spring properties, and the center of the leaf spring 40 is curved to form a curved portion 40a. The leaf spring 40 closes the insertion hole 39 a provided in the frame body 39 on the lower surface side of the frame body 39 and is overlapped and fixed to the frame body 39. The case 31 is integrally attached to the lower surface side of the storage portion 31c opened. Further, the bending portion 40a presses the tip of the second support shaft portion 32d of the operation shaft 32 protruding from the insertion hole 39a, and the operation portion 32a of the operation shaft 32 is always a bearing of the case 31. It is biased in a direction protruding from the portion 31b.
Even when the operation shaft 32 is rattling, the biasing force of the leaf spring 40 can prevent the operation shaft 32 from rattling.

特開２００２−１５６４１号公報JP 2002-15641 A

しかしながら、上述した従来の回転型電気部品においては、枠体の外方に、常時、操作軸の操作部をケースから突出する方向へ付勢するばね部材を必要とするため、構造が複雑となり、生産性が良くないという問題があった。   However, in the conventional rotary electric component described above, the structure is complicated because a spring member that constantly urges the operation portion of the operation shaft in a direction protruding from the case is required outside the frame. There was a problem that productivity was not good.

したがって、本発明では上述した問題点を解決し、ばね部材を使用せずに、簡単な構造で、操作軸のガタを抑えることのできる回転型電気部品を提供することを目的とする。   Accordingly, an object of the present invention is to solve the above-described problems and to provide a rotary electric component that can suppress the play of the operation shaft with a simple structure without using a spring member.

上記課題を解決するために本発明では第１の解決手段として、一端側に筒状の軸受け部を有し他端側に収納部を有するハウジングと、先端側が前記軸受け部から突出すると共に前記軸受け部に回転可能に保持された回転軸と、前記収納部内に設けられ前記回転軸の回転を検出する回転検出手段とを備え、前記回転軸は、前記軸受け部に挿通される主軸部と、前記軸受け部の先端側の外周面を覆うように前記主軸部と一体的に形成され、外装つまみを装着可能なつまみ取付け部からなる構成とした。   In order to solve the above-mentioned problems, the present invention provides as a first solution means a housing having a cylindrical bearing portion on one end side and a storage portion on the other end side, and a tip end side protruding from the bearing portion and the bearing. A rotation shaft that is rotatably held by a portion, and a rotation detection means that is provided in the storage portion and detects rotation of the rotation shaft, and the rotation shaft is inserted into the bearing portion, and The main shaft portion is formed integrally with the main shaft portion so as to cover the outer peripheral surface on the front end side of the bearing portion, and includes a knob mounting portion to which an exterior knob can be attached.

また、第２の解決手段として、前記回転軸は、前記主軸部を金属材で形成すると共に、前記つまみ取付け部を前記主軸部とは異なる材料で形成し、前記金属材からなる前記主軸部先端を前記つまみ取付け部から露出させた状態で一体的に形成した構成とした。
また、第３の解決手段として、前記主軸部の一端側には、非円形部を設け、この非円形部により前記主軸部と前記つまみ取付け部を一体的に係合させた構成とした。
また、第４の解決手段として、前記つまみ取付け部を合成樹脂材により形成した構成とした。
また、第５の解決手段として、前記つまみ取付け部を金属材のダイキャストにより形成した構成とした。 Further, as a second solving means, the rotating shaft has the main shaft portion formed of a metal material, and the knob mounting portion is formed of a material different from the main shaft portion, and the front end of the main shaft portion made of the metal material. Are integrally formed in a state of being exposed from the knob mounting portion.
As a third solving means, a non-circular portion is provided on one end side of the main shaft portion, and the main shaft portion and the knob mounting portion are integrally engaged by this non-circular portion.
As a fourth solution, the knob mounting portion is formed of a synthetic resin material.
As a fifth solution, the knob mounting portion is formed by die casting of a metal material.

また、第６の解決手段として、前記つまみ取付け部の外周に、前記外装つまみと嵌合する凹凸部あるいは切り欠き部を形成した構成とした。
また、第７の解決手段として、前記回転軸は、前記軸受け部に回転軸線方向にスライド移動可能とされ、前記ハウジングの収納部には、前記回転軸を押圧操作した時に動作する押圧スイッチを設けた構成とした。
また、第８の解決手段として、前記回転検出手段は、導電パターンと該導電パターンと摺接する摺動子からなる構成とした。 Further, as a sixth solving means, a configuration in which an uneven portion or a notch portion that fits the outer knob is formed on the outer periphery of the knob mounting portion.
Further, as a seventh solving means, the rotating shaft is slidably movable in the rotational axis direction on the bearing portion, and a pressing switch that operates when the rotating shaft is pressed is provided in the housing portion of the housing. The configuration was as follows.
Further, as an eighth solving means, the rotation detecting means comprises a conductive pattern and a slider that is in sliding contact with the conductive pattern.

上述したように、本発明の回転型電気部品は、一端側に筒状の軸受け部を有し他端側に収納部を有するハウジングと、先端側が軸受け部から突出すると共に軸受け部に回転可能に保持された回転軸と、収納部内に設けられ回転軸の回転を検出する回転検出手段とを備え、回転軸は、軸受け部に挿通される主軸部と、軸受け部の先端側の外周面を覆うように主軸部と一体的に形成され、外装つまみを装着可能なつまみ取付け部からなることから、外装つまみは軸受け部の外周に位置するつまみ取付け部に取付けられるので、外装つまみを軸受け部に当接することなく取付けることができ、軸受け部を長く形成することにより回転軸の主軸部の先端近くまでガイドできるため、回転軸の形状により軸ガタを小さくすることができ、簡単な構造で回転軸の軸ガタを抑えることができる。   As described above, the rotating electrical component of the present invention includes a housing having a cylindrical bearing portion on one end side and a housing portion on the other end side, and a distal end side protruding from the bearing portion and being rotatable to the bearing portion. A rotation shaft that is held in the storage unit and that detects rotation of the rotation shaft; the rotation shaft covers a main shaft portion that is inserted into the bearing portion and an outer peripheral surface on a distal end side of the bearing portion; In this way, the outer knob is attached to the knob mounting portion located on the outer periphery of the bearing portion, so that the outer knob is applied to the bearing portion. It can be mounted without contact, and by forming the bearing part long, it can guide to the tip of the main shaft part of the rotating shaft, so the shaft play can be reduced by the shape of the rotating shaft, and it can be rotated with a simple structure. It is possible to suppress the axial play of the shaft.

また、回転軸は、主軸部を金属材で形成すると共に、つまみ取付け部を主軸部とは異なる材料で形成し、金属材からなる主軸部先端をつまみ取付け部から露出させた状態で一体的に形成したことから、主軸部とつまみ取付け部との係合位置を精度良く合わせることができ、主軸部とつまみ取付け部の偏心を抑えることができる。
また、主軸部の一端側には、非円形部を設け、非円形部により主軸部とつまみ取付け部を一体的に係合させたことから、主軸部とつまみ取付け部とを確実に係合できるので、外装つまみの回転操作をつまみ取付け部を介して確実に回転軸に伝えることができる。 The rotating shaft is formed integrally with the main shaft portion made of a metal material and the knob mounting portion made of a material different from the main shaft portion, with the end of the main shaft portion made of metal material exposed from the knob mounting portion. Since it formed, the engagement position of a main axis | shaft part and a knob attachment part can be match | combined accurately, and eccentricity of a main axis | shaft part and a knob attachment part can be suppressed.
Further, since the non-circular portion is provided on one end side of the main shaft portion and the main shaft portion and the knob mounting portion are integrally engaged by the non-circular portion, the main shaft portion and the knob mounting portion can be reliably engaged. Therefore, the rotation operation of the exterior knob can be reliably transmitted to the rotating shaft via the knob mounting portion.

また、つまみ取付け部を合成樹脂材により形成したことから、外装つまみは一般に合成樹脂材で形成されており、つまみ取付け部を外装つまみと同じ合成樹脂材（例えばＡＢＳ樹脂）にすることができるので、つまみ取付け部と外装つまみとの熱膨張係数が近くなり、外装つまみあるいはつまみ取付け部に熱によるストレスが加わりにくく、クラックや割れの発生を抑制できる。
また、つまみ取付け部を金属材のダイキャストにより形成したことから、つまみ取付け部が金属材からなるので、薄肉部や切り欠き部が設けられていても、強度を保つことができる。 Further, since the knob mounting portion is formed of a synthetic resin material, the exterior knob is generally formed of a synthetic resin material, and the knob mounting portion can be made of the same synthetic resin material (for example, ABS resin) as the exterior knob. The coefficient of thermal expansion between the knob mounting portion and the outer knob becomes close, it is difficult for stress due to heat to be applied to the outer knob or knob mounting portion, and the occurrence of cracks and cracks can be suppressed.
Further, since the knob mounting portion is formed by die-casting a metal material, the knob mounting portion is made of a metal material, so that the strength can be maintained even if a thin wall portion or a notch portion is provided.

また、つまみ取付け部の外周に、外装つまみと嵌合する凹凸部あるいは切り欠き部を形成したことから、外装つまみのつまみ取付け部への嵌合を確実なものとすることができる。
また、回転軸は、軸受け部に回転軸線方向にスライド移動可能とされ、ハウジングの収納部には、回転軸を押圧操作した時に動作する押圧スイッチを設けたことから、回転軸の下方に押圧スイッチを設けることにより回転軸の回転軸線方向の押圧操作を検出することができる。 Moreover, since the uneven | corrugated | grooved part or notch part which fits with an exterior knob is formed in the outer periphery of a knob attachment part, the fitting to the knob attachment part of an exterior knob can be made reliable.
In addition, the rotation shaft is slidable in the direction of the rotation axis on the bearing portion, and the housing switch is provided with a press switch that operates when the rotation shaft is pressed. It is possible to detect a pressing operation in the direction of the rotation axis of the rotation shaft.

以下、本発明の回転型電気部品の実施形態を図１乃至図１１に示す。図１は本発明の回転型電気部品の平面図、図２は本発明の回転型電気部品の正面図、図３は本発明の回転型電気部品に外装つまみを取付けた状態の断面図、図４は回転軸の正面図、図５は回転軸の断面図、図６は回転軸の主軸部の平面図、図７は回転軸の主軸部の正面図、図８は本発明の回転型電気部品の他の実施例を示す平面図、図９は本発明の回転型電気部品の他の実施例を示す正面図、図１０は同じく回転軸の正面図、図１１は同じく回転軸の断面図である。   Embodiments of the rotating electrical component of the present invention are shown in FIGS. FIG. 1 is a plan view of a rotating electrical component of the present invention, FIG. 2 is a front view of the rotating electrical component of the present invention, and FIG. 3 is a cross-sectional view of the rotating electrical component of the present invention with an exterior knob attached. 4 is a front view of the rotating shaft, FIG. 5 is a sectional view of the rotating shaft, FIG. 6 is a plan view of the main shaft portion of the rotating shaft, FIG. 7 is a front view of the main shaft portion of the rotating shaft, and FIG. FIG. 9 is a front view showing another embodiment of the rotating electrical component of the present invention, FIG. 10 is a front view of the rotating shaft, and FIG. 11 is a sectional view of the rotating shaft. It is.

図１〜図７において、上ケース１は、合成樹脂等の絶縁材、あるいは金属材のダイキャストなどにより下端側が開口された箱状に形成されている。この上ケース１の上端側には、後述する回転軸２が挿通される軸孔１ａを有し、主軸部３の先端が外方へ突出される円筒状の軸受け部１ｂが一体的に突出されて形成されている。また、前記軸受け部１ｂに連設して下端側の開口内に後述する回転部材７等を収納する収納部１ｃが形成されている。   1 to 7, the upper case 1 is formed in a box shape whose lower end side is opened by an insulating material such as a synthetic resin or a die-cast metal material. On the upper end side of the upper case 1, there is a shaft hole 1a through which a rotating shaft 2 to be described later is inserted, and a cylindrical bearing portion 1b from which the tip of the main shaft portion 3 protrudes outward is integrally projected. Is formed. A storage portion 1c that is connected to the bearing portion 1b and stores a rotating member 7 and the like to be described later is formed in the opening on the lower end side.

回転軸２は、アルミニューム等の金属材を略円柱状に切削加工により形成した主軸部３と、合成樹脂製の絶縁材からなり、この主軸部３の先端に一体的に取付けられたつまみ取付け部４とで形成されている。尚、本実施例では、つまみ取付け部４は中空部４ａを有する筒状に形成されている。また、前記主軸部３とつまみ取付け部４とは、インサート成形等の方法で一体成形されて形成されている。前記回転軸２は、主軸部３が前記上ケース１の軸受け部１ｂに回転可能に軸支され、その先端側が前記軸孔１ａから突出されてつまみ取付け部４と係合されており、このつまみ取付け部４に電子機器などの操作パネルから露出する外装つまみ５が装着されるものとなっている。尚、軸受け部１ｂによる主軸部３の軸支部は、軸受け部１ｂの先端側に設定されており、この軸支部は外装つまみ５の内側に位置している。   The rotating shaft 2 includes a main shaft portion 3 formed by cutting a metal material such as aluminum into a substantially cylindrical shape and an insulating material made of a synthetic resin, and a knob mounting integrally attached to the tip of the main shaft portion 3 It is formed with the part 4. In this embodiment, the knob mounting portion 4 is formed in a cylindrical shape having a hollow portion 4a. The main shaft portion 3 and the knob mounting portion 4 are integrally formed by a method such as insert molding. The rotary shaft 2 has a main shaft portion 3 rotatably supported by a bearing portion 1b of the upper case 1, and a tip end side thereof protruding from the shaft hole 1a and engaged with a knob mounting portion 4. An exterior knob 5 exposed from an operation panel such as an electronic device is attached to the attachment portion 4. Note that the shaft support portion of the main shaft portion 3 by the bearing portion 1 b is set on the distal end side of the bearing portion 1 b, and this shaft support portion is located inside the exterior knob 5.

この場合、前記つまみ取付け部４を前記外装つまみ５と同種の合成樹脂材、例えばＡＢＳ樹脂材等で形成するようにすれば、つまみ取付け部４と外装つまみ５との熱膨張係数が同等になるので、外装つまみ５あるいはつまみ取付け部４に熱による変形時のストレスが加わりにくく、クラックや割れの発生を防止できるものとなる。   In this case, if the knob mounting portion 4 is formed of the same type of synthetic resin material as the outer knob 5, for example, an ABS resin material, the thermal expansion coefficients of the knob mounting portion 4 and the outer knob 5 are equal. Therefore, it is difficult to apply stress at the time of deformation due to heat to the exterior knob 5 or the knob mounting portion 4, and cracks and cracks can be prevented from occurring.

また、前記主軸部３の一端側（先端側）には、平面視Ｄ字形状の非円形部となるＤカット部３ａが形成されている。このＤカット部３ａで前記つまみ取付け部４とインサート成形等の成形加工により一体的に係合されている。このため、前記主軸部３とつまみ取付け部４とを確実に係合できるので、前記外装つまみ５の回転操作をつまみ取付け部４を介して確実に回転軸２（主軸部３）に伝えることができるものとなっている。   A D-cut portion 3 a that is a non-circular portion having a D shape in plan view is formed on one end side (tip side) of the main shaft portion 3. The D cut portion 3a is integrally engaged with the knob mounting portion 4 by a molding process such as insert molding. For this reason, since the main shaft portion 3 and the knob mounting portion 4 can be reliably engaged, the rotation operation of the exterior knob 5 can be reliably transmitted to the rotary shaft 2 (main shaft portion 3) via the knob mounting portion 4. It is possible.

また、この時、前記回転軸２は、金属製の主軸部３の先端３ｂを前記つまみ取付け部４の軸心部中央の孔４ｂに露出させた状態で一体的に形成するようにしており、このため、つまみ取付け部４を主軸部３に成形加工（インサート成形）する場合、前記孔４ｂを介して主軸部３を成形金型内で確実に位置決めできるので、主軸部３とつまみ取付け部４との係合位置を精度良く合わせることができ、主軸部３とつまみ取付け部４の偏心を抑えることができるものとなっている。   At this time, the rotating shaft 2 is formed integrally with the tip 3b of the metal main shaft 3 exposed in the hole 4b in the center of the shaft center of the knob mounting portion 4. For this reason, when the knob mounting portion 4 is formed into the main shaft portion 3 (insert molding), the main shaft portion 3 can be reliably positioned in the molding die through the hole 4b. And the eccentric position of the main shaft portion 3 and the knob mounting portion 4 can be suppressed.

また、前記回転軸２は、主軸部３が前記上ケース１の軸受け部１ｂに軸支された際には、筒状のつまみ取付け部４が前記軸受け部１ｂの前記軸支部を含む先端側の外周面を覆うように形成されており、この時、つまみ取付け部４の中空部４ａに前記軸受け部１ｂの先端側が挿入された状態で軸支されるものとなっている。したがって、前記軸受け部１ｂを長く形成することができ、また、前記外装つまみ５が軸受け部１ｂに当接することなく、軸受け部１ｂとオーバーラップしており、回転軸２の主軸部３の先端近くまで軸受け部１ｂで回転軸２をガイドすることができるものとなる。   Further, when the main shaft portion 3 is pivotally supported by the bearing portion 1b of the upper case 1, the rotary shaft 2 has a cylindrical knob mounting portion 4 on the tip side including the shaft support portion of the bearing portion 1b. It is formed so as to cover the outer peripheral surface, and at this time, it is pivotally supported in a state where the distal end side of the bearing portion 1 b is inserted into the hollow portion 4 a of the knob mounting portion 4. Accordingly, the bearing portion 1b can be formed long, and the exterior knob 5 overlaps with the bearing portion 1b without coming into contact with the bearing portion 1b, and is near the tip of the main shaft portion 3 of the rotating shaft 2. The rotating shaft 2 can be guided by the bearing portion 1b.

また、前記つまみ取付け部４の外周面には、前記外装つまみ５と嵌合する凹凸部４ｃが形成されている。この凹凸部４ｃを設けることにより前記回転軸２と前記外装つまみ５との嵌合を確実に行なうことができるものとなっている。   Further, an uneven portion 4 c that fits with the outer knob 5 is formed on the outer peripheral surface of the knob mounting portion 4. By providing the uneven portion 4c, the rotary shaft 2 and the exterior knob 5 can be reliably fitted.

また、前記主軸部３の他端側（下端側）には、主軸部３よりも細径でかつ小判状からなる回転駆動部３ｃが設けられている。この回転駆動部３ｃが、後述する駆動部材６と係合されるものとなっており、前記回転軸２の回転に伴って駆動部材６を介して後述する回転部材７が回転動作されるものとなっている。   In addition, a rotation driving unit 3 c having a smaller diameter and an oval shape than the main shaft portion 3 is provided on the other end side (lower end side) of the main shaft portion 3. The rotation drive unit 3c is engaged with a drive member 6 to be described later, and a rotation member 7 to be described later is rotated through the drive member 6 as the rotary shaft 2 rotates. It has become.

駆動部材６は、合成樹脂等の絶縁材からなり、基部６ａと一対のガイド突部６ｂを有している。この駆動部材６は、前記上ケース１の下端側に形成された収納部１ｃ内に収納されると共に、前記基部６ａが軸受け部１ｂの軸孔１ａに挿通された前記主軸部３の下端側に形成された前記回転駆動部３ｃに係合され、前記回転軸２の回転動作に伴って回転するものとなっている。また、この時、前記一対のガイド突部６ｂが後述する回転部材７に係合されており、回転部材７が駆動部材６の回転に伴って回転するものとなっている。   The drive member 6 is made of an insulating material such as synthetic resin, and has a base portion 6a and a pair of guide projections 6b. The drive member 6 is housed in a housing portion 1c formed on the lower end side of the upper case 1, and the base portion 6a is disposed on the lower end side of the main shaft portion 3 inserted through the shaft hole 1a of the bearing portion 1b. It is engaged with the formed rotation drive part 3 c and rotates with the rotation operation of the rotation shaft 2. At this time, the pair of guide protrusions 6 b are engaged with a rotating member 7 described later, and the rotating member 7 rotates as the driving member 6 rotates.

回転部材７は、合成樹脂等の絶縁材からなり、中央に上下に貫通する貫通孔を有し、円盤状の基盤部７ａと、この基盤部７ａの上方へ突出した筒状部７ｂとを有している。また、筒状部７ｂの内壁には、上下方向に沿って一対のガイド溝７ｃが設けられており、このガイド溝７ｃに前記駆動部材６の一対のガイド突部６ｂが係合されるものとなっている。この回転部材７は、前記上ケース１の下端側に形成された収納部１ｃ内に回転可能に収納されている。   The rotating member 7 is made of an insulating material such as synthetic resin, and has a through-hole penetrating vertically in the center. The rotating member 7 includes a disk-shaped base portion 7a and a cylindrical portion 7b protruding upward from the base portion 7a. is doing. In addition, a pair of guide grooves 7c are provided on the inner wall of the cylindrical portion 7b along the vertical direction, and the pair of guide protrusions 6b of the drive member 6 are engaged with the guide grooves 7c. It has become. The rotating member 7 is rotatably housed in a housing portion 1c formed on the lower end side of the upper case 1.

この場合、前記駆動部材６と回転部材７とは、前記ガイド突部６ｂとガイド溝７ｃとによりスプライン結合されており、前記駆動部材６は回転部材７に対して上下方向（回転軸２の軸方向）には独自に移動可能とされ、回転軸２が回転する際には、回転軸２の回転に伴って共回りして回転部材７を回転させるものとなっている。すなわち、前記回転軸２は、前記軸受け部１ｂに上下動可能、かつ、回転可能に軸支されたものとなっている。   In this case, the drive member 6 and the rotation member 7 are spline-coupled by the guide protrusion 6b and the guide groove 7c, and the drive member 6 is in the vertical direction with respect to the rotation member 7 (the axis of the rotation shaft 2). In the direction), when the rotating shaft 2 rotates, the rotating member 7 is rotated together with the rotation of the rotating shaft 2. That is, the rotating shaft 2 is supported by the bearing portion 1b so as to be movable up and down and rotatably.

また、前記回転部材７の基盤部７ａの上面側には、複数の凹凸部からなる環状のカム山部（図示せず）が設けられており、また、前記上ケース１の収納部１ｃの天井面側にはこのカム山部に対向してばね性を有するクリック板８が設けられている。前記カム山部とクリック板８を設けることにより、前記回転軸２の回転動作時に良好な操作感触（クリック感触）が得られるものとなる。   An annular cam crest (not shown) made up of a plurality of concave and convex portions is provided on the upper surface side of the base portion 7a of the rotating member 7, and the ceiling of the storage portion 1c of the upper case 1 is provided. On the surface side, a click plate 8 having a spring property is provided to face the cam crest. By providing the cam crest and the click plate 8, a good operation feeling (click feeling) can be obtained when the rotating shaft 2 rotates.

また、前記回転部材７の基盤部７ａの下面側には、導電性の金属板からなる導電パターン９がインサート成形等の方法で一体的に埋設されて配設されている。この導電パターン９に、後述する下ケース１０に配設された図示しない摺動子が摺接されることで前記回転軸２の回転を検出するものとなっている。   In addition, a conductive pattern 9 made of a conductive metal plate is integrally embedded and disposed on the lower surface side of the base portion 7a of the rotating member 7 by a method such as insert molding. The conductive pattern 9 detects the rotation of the rotary shaft 2 by slidingly contacting a slider (not shown) disposed in a lower case 10 described later.

下ケース１０は、合成樹脂等の絶縁材からなり、上面が開口された箱状に形成され凹状の収納部１０ａを有している。また、この収納部１０ａの中央には、更に凹状の窪み部１０ｂが設けられている。この窪み部１０ｂを挟んで前記収納部１０ａの対向する位置には、導電性の薄板金属板からなる一対の摺動子（図示せず）が設けられており、この摺動子が前記回転部材７の下面側に形成された導電パターン９と摺接されるものとなっている。この摺動子と導電パターン９とで回転検出手段を構成しており、前記回転軸２が回転操作された際には、摺動子が導電パターン上を摺接することにより回転時の所定の信号を出力するものとなっている。   The lower case 10 is made of an insulating material such as a synthetic resin, and has a box-like storage portion 10a that is formed in a box shape with an upper surface opened. Further, a concave recess 10b is provided at the center of the storage portion 10a. A pair of sliders (not shown) made of conductive thin metal plates are provided at positions facing the storage portion 10a across the hollow portion 10b, and these sliders serve as the rotating member. 7 is in sliding contact with the conductive pattern 9 formed on the lower surface side. The slider and the conductive pattern 9 constitute a rotation detecting means. When the rotary shaft 2 is rotated, the slider slides on the conductive pattern so that a predetermined signal during rotation is obtained. Is output.

また、前記窪み部１０ｂには、同じく導電性の金属板からなる中央固定接点１１及び周辺固定接点１２が一定の間隔を保って対向して配設されている。この中央固定接点１１及び周辺固定接点１２の上面側には、導電性の薄板金属板からなる可動接点１３が載置されており、この可動接点１３の周縁部が周辺固定接点１２に接触すると共に、中央の接点板（可動接点１３）が中央固定接点１１とは離間した状態で対向されている。   In addition, a central fixed contact 11 and a peripheral fixed contact 12 made of the same conductive metal plate are arranged opposite to each other at a constant interval in the recess 10b. A movable contact 13 made of a conductive thin metal plate is placed on the upper surface side of the central fixed contact 11 and the peripheral fixed contact 12, and the peripheral portion of the movable contact 13 contacts the peripheral fixed contact 12. The central contact plate (movable contact 13) is opposed to the central fixed contact 11 in a separated state.

また、前記可動接点１３の上面側には、弾性を有するゴム材等からなり、反転可能なドーム状の膨出部を有するクリック部材１４が載置されている。このクリック部材１４のドーム状の膨出部の頂部には押圧部１４ａが設けられており、この押圧部１４ａの下面側には押圧突起１４ｂが設けられ、この押圧突起１４ｂが前記可動接点１３の中央の接点板に対向して配設されている。   On the upper surface side of the movable contact 13, a click member 14 made of an elastic rubber material or the like and having a dome-shaped bulging portion that can be reversed is placed. A pressing portion 14 a is provided on the top of the dome-shaped bulging portion of the click member 14, a pressing protrusion 14 b is provided on the lower surface side of the pressing portion 14 a, and the pressing protrusion 14 b is connected to the movable contact 13. It is arranged to face the central contact plate.

また、クリック部材１４は、ドーム状の膨出部が前記回転部材７の貫通孔を通して筒状部７ｂの内側に配設されており、クリック部材１４の上方には、筒状部７ｂの内壁のガイド溝７ｃに係合された前記駆動部材６が配置され、前記駆動部材６の下端部とクリック部材１４の押圧部１４ａの上端部が当接した状態となっている。   Further, the click member 14 has a dome-shaped bulging portion disposed inside the cylindrical portion 7 b through the through hole of the rotating member 7, and above the click member 14, an inner wall of the cylindrical portion 7 b is provided. The driving member 6 engaged with the guide groove 7c is disposed, and the lower end portion of the driving member 6 and the upper end portion of the pressing portion 14a of the click member 14 are in contact with each other.

前記中央固定接点１１、周辺固定接点１２、可動接点１３及びクリック部材１４で押圧スイッチを構成しており、前記回転軸２が押圧操作された際には、回転軸２が下方へ移動して、主軸部３の下端側に係合された前記駆動部６を介してクリック部材１４の押圧部１４ａが押圧され、反転することで押圧突起１４ｂが下側に配設された可動接点１３の接点板を押圧し、可動接点１３を介して中央固定接点１１と周辺固定接点１２が導通され押圧時の信号を出力するものとなっている。   The central fixed contact 11, the peripheral fixed contact 12, the movable contact 13 and the click member 14 constitute a pressing switch. When the rotating shaft 2 is pressed, the rotating shaft 2 moves downward, The contact plate of the movable contact 13 in which the pressing portion 14a of the click member 14 is pressed through the driving portion 6 engaged with the lower end side of the main shaft portion 3 and is inverted to be disposed on the lower side. , And the central fixed contact 11 and the peripheral fixed contact 12 are brought into conduction through the movable contact 13 to output a signal at the time of pressing.

このように、前記回転軸２は、軸受け部１ｂに回転軸線方向へスライド移動可能とされ、下ケース１０の収納部１０ａには、前記回転軸２を押圧操作した時に動作する押圧スイッチを設けるようにしたので、軸ガタを抑えるために、前記回転軸２を従来のようにばね部材等で付勢する必要がなく、回転軸２を上下動可能に保持できるので、回転軸２の下方に押圧スイッチを設けることにより回転軸２の軸線方向の押圧操作を検出することができるものとなっている。   Thus, the rotary shaft 2 can be slidably moved in the direction of the rotational axis in the bearing portion 1b, and the storage portion 10a of the lower case 10 is provided with a press switch that operates when the rotary shaft 2 is pressed. Therefore, it is not necessary to urge the rotating shaft 2 with a spring member or the like as in the prior art in order to suppress shaft backlash, and the rotating shaft 2 can be held so as to be movable up and down. By providing the switch, it is possible to detect the pressing operation of the rotating shaft 2 in the axial direction.

また、前記下ケース１０の対向する両側面には、前記摺動子（図示せず）及び前記中央固定接点１１、周辺固定接点１２から導出され、外方へ突出した接続端子１５が形成されている。この接続端子１５が電子機器等の回路パターン等に接続されて信号が伝送されるものとなる。また、前記上ケース１の下端側に前記下ケース１０が係合されることにより、一端側（上端側）に筒状の軸受け部１ｂを有し、他端側（下端側）の内部に凹状の収納部１ｃ及び収納部１０ａを有するハウジングが構成されるものとなっている。   Further, on both opposite side surfaces of the lower case 10, there are formed connection terminals 15 which are led out from the slider (not shown), the central fixed contact 11 and the peripheral fixed contact 12 and project outward. Yes. The connection terminal 15 is connected to a circuit pattern or the like of an electronic device or the like to transmit a signal. Further, the lower case 10 is engaged with the lower end side of the upper case 1, thereby having a cylindrical bearing portion 1b on one end side (upper end side) and a concave shape inside the other end side (lower end side). The housing having the storage portion 1c and the storage portion 10a is configured.

また、下ケース１０の下面側には、合成樹脂等の絶縁材からなる蓋体１６が取付けられている。この蓋体１６は、下ケース１０の収納部１０ａに設けられた摺動子（図示せず）、中央固定接点１１、周辺固定接点１２等の接点部内にゴミや埃などが侵入しないように、開口部を封止するためのものである。   Further, a lid 16 made of an insulating material such as synthetic resin is attached to the lower surface side of the lower case 10. The lid body 16 is configured so that dust and dirt do not enter the contact portions such as a slider (not shown) provided in the storage portion 10a of the lower case 10, the central fixed contact 11, and the peripheral fixed contact 12. This is for sealing the opening.

また、上ケース１の上面側には、金属板等からなる枠体１７が取付けられている。この枠体１７の四隅部には、屈曲片１７ａが設けられており、この屈曲片１７ａを折り曲げることにより、前記上ケース１、下ケース１０、蓋体１６を一体に重ね合わせて取付けるものとなっている。また、前記枠体１７には一対の脚部１７ｂが設けられており、この脚部１７ｂで電子機器等の回路基板上に取付けられるものとなっている。   A frame 17 made of a metal plate or the like is attached to the upper surface side of the upper case 1. Bending pieces 17a are provided at the four corners of the frame body 17. By bending the bending pieces 17a, the upper case 1, the lower case 10, and the lid body 16 are integrally overlapped and attached. ing. The frame body 17 is provided with a pair of leg portions 17b, and these leg portions 17b are attached to a circuit board such as an electronic device.

上記構成の回転型電気部品の先端に外装つまみ５を装着して使用する場合、回転型電気部品は、電子機器等のハウジングや回路基板等に取付けられており、操作パネルに設けられた挿通孔等から前記回転軸２のつまみ取付け部４が突出して配設されている。この状態で、前記回転軸２のつまみ取付け部４の先端に外装つまみ５を圧入して装着するものとなっており、外装つまみ５はケース１の上端側に長く形成された軸受け部１ｂとは当接せずにオーバーラップした状態で回転軸２に確実に装着されるものとなる。   When the exterior knob 5 is attached to the front end of the rotary electric component having the above configuration and used, the rotary electric component is attached to a housing or a circuit board of an electronic device or the like, and an insertion hole provided in the operation panel The knob mounting portion 4 of the rotary shaft 2 is disposed so as to protrude from the above. In this state, the outer knob 5 is press-fitted and attached to the tip of the knob mounting portion 4 of the rotary shaft 2, and the outer knob 5 is a bearing portion 1 b formed long on the upper end side of the case 1. The rotating shaft 2 is securely mounted in an overlapped state without contacting.

図８〜図１１は、本発明の回転型電気部品の他の実施例を示している。この場合、上記実施例と異なるのは、回転軸２の構成が一部相違している点である。すなわち、本実施例では、回転軸２２の一部を構成するつまみ取付け部２４の構成を合成樹脂材に代えて金属材で形成している。
尚、図１〜図７で説明した上記実施例の部品と同一部品については同一符号を付してその説明を省略する。 8 to 11 show another embodiment of the rotary electrical component of the present invention. In this case, the difference from the above embodiment is that the configuration of the rotating shaft 2 is partially different. That is, in this embodiment, the configuration of the knob mounting portion 24 that constitutes a part of the rotating shaft 22 is formed of a metal material instead of the synthetic resin material.
The same parts as those of the above-described embodiment described with reference to FIGS.

図１０、図１１に示すように、本実施例では、回転軸２２は、アルミニューム等の金属材を略円柱状に切削加工により形成した主軸部２３と、亜鉛等の金属材のダイキャストからなり、この主軸部２３の先端に一体的に成形加工によって取付けられたつまみ取付け部２４とで形成されている。尚、本実施例では、つまみ取付け部２４は略中空部２４ａを有するが、全体が完全な筒状には形成されておらず、外周の一側面に平面視略Ｄ字状で、断面視略Ｃ字状となるように切り欠き部２４ｃが設けられている。また、これと直交する方向の両側面部には軸線方向に沿って延びる一対の平坦面２４ｄが設けられており、さらに、外周面の一端側には周方向にＶ字状の切り溝２４ｅが設けられ、これらによって中空部２４ａを構成する周壁部の断面が薄肉となる薄肉部が形成されている。   As shown in FIGS. 10 and 11, in this embodiment, the rotating shaft 22 includes a main shaft portion 23 formed by cutting a metal material such as aluminum into a substantially cylindrical shape, and a die-cast metal material such as zinc. And a knob mounting portion 24 that is integrally mounted on the tip of the main shaft portion 23 by molding. In this embodiment, the knob mounting portion 24 has a substantially hollow portion 24a. However, the knob mounting portion 24 is not formed entirely in a cylindrical shape, and is substantially D-shaped in plan view on one side surface of the outer periphery. A notch 24c is provided so as to be C-shaped. In addition, a pair of flat surfaces 24d extending along the axial direction are provided on both side surfaces in a direction perpendicular to this, and a V-shaped cut groove 24e is provided in the circumferential direction on one end side of the outer peripheral surface. Thus, a thin wall portion is formed in which the cross section of the peripheral wall portion constituting the hollow portion 24a is thin.

また、前記主軸部２３とつまみ取付け部２４とは、インサート成形等の方法で一体的に成形加工されて形成されている。そして、同じく前記回転軸２２は、主軸部２３が前記上ケース１の軸受け部１ｂに回転可能に軸支され、その先端側が前記軸孔１ａから突出されてつまみ取付け部２４と係合されており、このつまみ取付け部２４に電子機器などの操作パネルから露出する外装つまみ５が装着されるものとなっている。また同じく、軸受け部１ｂによる主軸部２３の軸支部は、軸受け部１ｂの先端側に設定されており、この軸支部は外装つまみ５の内側に位置している。   The main shaft portion 23 and the knob mounting portion 24 are formed by being integrally molded by a method such as insert molding. Similarly, the rotary shaft 22 has a main shaft portion 23 rotatably supported on the bearing portion 1b of the upper case 1, and a tip end side thereof protruding from the shaft hole 1a to be engaged with the knob mounting portion 24. The outer knob 5 exposed from an operation panel of an electronic device or the like is attached to the knob mounting portion 24. Similarly, the shaft support portion of the main shaft portion 23 by the bearing portion 1 b is set on the distal end side of the bearing portion 1 b, and this shaft support portion is located inside the exterior knob 5.

この場合、前記つまみ取付け部２４を金属材のダイキャストにより形成することにより、つまみ取付け部２４が金属材から形成されるので、該つまみ取付け部２４に前記切り欠き部２４ｃや薄肉部が設けられていても、強度を保つことができるものとなっている。このため、このつまみ取付け部２４に電子機器などの操作パネルから露出する外装つまみ５が装着される場合においても、外装つまみ５を強固に確実に保持することができるものとなっている。また、外装つまみ５が、つまみ取付け部２４とは異なる材料である合成樹脂材で形成されており、両者の熱膨張係数が異なっている場合においても、つまみ取付け部２４には切り欠き部２４ｃが設けられていることから、つまみ取り付け部２４は変形可能であり、前記熱膨張係数の違いを吸収して、外装つまみ５にクラックや割れが発生するのを防止できる。   In this case, since the knob mounting portion 24 is formed of a metal material by forming the knob mounting portion 24 by die casting of a metal material, the notch portion 24c and a thin portion are provided in the knob mounting portion 24. Even so, the strength can be maintained. For this reason, even when the exterior knob 5 exposed from the operation panel of the electronic device or the like is attached to the knob mounting portion 24, the exterior knob 5 can be firmly and securely held. Further, even when the exterior knob 5 is formed of a synthetic resin material that is a different material from the knob mounting portion 24, and the thermal expansion coefficients of both are different, the knob mounting portion 24 has a notch 24c. Since it is provided, the knob mounting portion 24 can be deformed and can absorb the difference in the thermal expansion coefficient to prevent the outer knob 5 from being cracked or cracked.

また、同様に前記主軸部２３の一端側（先端側）には、平面視Ｄ字形状の非円形部となるＤカット部２３ａが形成されており、このＤカット部２３ａで前記つまみ取付け部２４とインサート成形等の成形加工で一体的に係合されていることから、前記主軸部２３とつまみ取付け部２４とを確実に係合できるものとなっている。また、この時、前記回転軸２２は、金属製の主軸部２３の先端２３ｂを前記つまみ取付け部２４の軸心部中央の孔２４ｂに露出させた状態で一体的に形成するようにしているので、つまみ取付け部２４を主軸部２３に成形加工（インサート成形）する場合に、前記孔２４ｂを介して主軸部２３を成形金型内で確実に精度良く位置決めできるものとなっている。   Similarly, a D-cut portion 23a which is a non-circular portion having a D-shape in a plan view is formed on one end side (tip side) of the main shaft portion 23, and the knob mounting portion 24 is formed by the D-cut portion 23a. Since the main shaft portion 23 and the knob mounting portion 24 can be reliably engaged with each other by the molding process such as insert molding. At this time, the rotary shaft 22 is integrally formed with the tip 23b of the metal main shaft portion 23 exposed in the hole 24b in the center of the shaft center portion of the knob mounting portion 24. When the knob mounting portion 24 is molded into the main shaft portion 23 (insert molding), the main shaft portion 23 can be reliably and accurately positioned in the molding die through the hole 24b.

前記回転軸２２の主軸部２３が、前記上ケース１の軸受け部１ｂに軸支された際には、同じように、つまみ取付け部２４が前記軸受け部１ｂの前記軸支部を含む先端側の外周面を覆うように形成されており、つまみ取付け部２４の中空部２４ａに前記軸受け部１ｂの先端側が挿入された状態で軸支されるものとなっているので、前記軸受け部１ｂを長く形成することができ、前記外装つまみ５が軸受け部１ｂに当接することなしに、回転軸２２の主軸部２３の先端近くまで軸受け部１ｂで回転軸２２をガイドすることができるものとなる。   When the main shaft portion 23 of the rotary shaft 22 is pivotally supported by the bearing portion 1b of the upper case 1, similarly, the knob mounting portion 24 has an outer periphery on the tip side including the shaft support portion of the bearing portion 1b. It is formed so as to cover the surface, and is supported in a state where the distal end side of the bearing portion 1b is inserted into the hollow portion 24a of the knob mounting portion 24. Therefore, the bearing portion 1b is formed long. Therefore, the rotating shaft 22 can be guided by the bearing portion 1b to the vicinity of the tip of the main shaft portion 23 of the rotating shaft 22 without the exterior knob 5 coming into contact with the bearing portion 1b.

また、前記つまみ取付け部２４の外周面には、前記切り欠き部２４ｃ、平坦面２４ｄ及び切り溝２４ｅが形成されており、これらを設けることにより前記回転軸２２と前記外装つまみ５との嵌合を確実に行なうことができるものとなっている。また、前記主軸部２３の他端側（下端側）には、主軸部２３よりも細径でかつ小判状からなる回転駆動部２３ｃが設けられており、この回転駆動部２３ｃが、前記駆動部材６と係合されて、前記回転軸２２の回転に伴って駆動部材６を介して前記回転部材７が回転動作されるものとなっている。   The notch 24c, the flat surface 24d, and the cut groove 24e are formed on the outer peripheral surface of the knob mounting portion 24, and by providing these, the rotary shaft 22 and the outer knob 5 are fitted. Can be reliably performed. Further, the other end side (lower end side) of the main shaft portion 23 is provided with a rotation driving portion 23c having a smaller diameter and an oval shape than the main shaft portion 23, and this rotation driving portion 23c is the driving member. 6, the rotating member 7 is rotated via the driving member 6 as the rotating shaft 22 rotates.

上記した本発明の実施例によれば、前記上ケース１の軸受け部１ｂに軸支される前記回転軸２、２２は、前記上ケース１の軸受け部１ｂに挿通される前記主軸部３、２３と、前記軸受け部１ｂの先端側の外周面を覆うように前記主軸部３、２３と一体的に形成された前記つまみ取付け部４、２４からなり、このつまみ取付け部４、２４に電子機器用の外装つまみ５を装着するようにしたことから、外装つまみ５は、前記軸受け部１ｂの外周に位置する前記つまみ取付け部４、２４に取付けられるので、外装つまみ５を前記軸受け部１ｂに当接することなく軸受け部１ｂとオーバーラップさせて取付けることができ、前記軸受け部１ｂを長く形成することにより外装つまみ５内に位置する前記回転軸２、２２の主軸部３、２３の先端近くまで回転軸２、２２をガイドできるため、上記実施例の回転軸２、２２の形状により軸ガタを小さくすることができ、簡単な構造で回転軸２、２２の軸ガタを抑えることができるものとなっている。   According to the above-described embodiment of the present invention, the rotary shafts 2 and 22 supported by the bearing portion 1b of the upper case 1 are inserted into the main shaft portions 3 and 23 inserted into the bearing portion 1b of the upper case 1. And the knob mounting portions 4 and 24 formed integrally with the main shaft portions 3 and 23 so as to cover the outer peripheral surface on the front end side of the bearing portion 1b. Since the outer knob 5 is attached to the knob mounting portions 4 and 24 located on the outer periphery of the bearing portion 1b, the outer knob 5 comes into contact with the bearing portion 1b. The bearing portion 1b can be attached without overlapping, and by forming the bearing portion 1b long, the bearing portion 1b can be rotated to the vicinity of the ends of the main shaft portions 3, 23 of the rotary shafts 2, 22 located in the exterior knob 5. Since the shafts 2 and 22 can be guided, the shaft backlash can be reduced by the shape of the rotary shafts 2 and 22 in the above embodiment, and the shaft backlash of the rotary shafts 2 and 22 can be suppressed with a simple structure. ing.

本発明の回転型電気部品を示す平面図である。It is a top view which shows the rotary electric component of this invention. 本発明の回転型電気部品を示す正面図である。It is a front view which shows the rotary electrical component of this invention. 本発明の回転型電気部品に外装つまみを取付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the exterior knob to the rotary electric component of this invention. 本発明の回転軸を示す正面図である。It is a front view which shows the rotating shaft of this invention. 本発明の回転軸を示す断面図である。It is sectional drawing which shows the rotating shaft of this invention. 本発明の回転軸の主軸部を示す平面図である。It is a top view which shows the main-axis part of the rotating shaft of this invention. 本発明の回転軸の主軸部を示す正面図である。It is a front view which shows the main-axis part of the rotating shaft of this invention. 本発明の回転型電気部品の他の実施例を示す平面図である。It is a top view which shows the other Example of the rotation type electrical component of this invention. 本発明の回転型電気部品の他の実施例を示す正面図である。It is a front view which shows the other Example of the rotation type electrical component of this invention. 本発明の回転軸の他の実施例を示す正面図である。It is a front view which shows the other Example of the rotating shaft of this invention. 本発明の回転軸の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of the rotating shaft of this invention. 従来の回転型電気部品を示す断面図である。It is sectional drawing which shows the conventional rotating electrical component. 従来の板ばねを示す正面図である。It is a front view which shows the conventional leaf | plate spring.

符号の説明Explanation of symbols

１：上ケース（ハウジング）
１ａ：軸孔
１ｂ：軸受け部
１ｃ：収納部
２：回転軸
３：主軸部
３ａ：Ｄカット部（非円形部）
３ｂ：先端
３ｃ：回転駆動部
４：つまみ取付け部
４ａ：中空部
４ｂ：孔
４ｃ：凹凸部
５：外装つまみ
６：駆動部材
６ａ：基部
６ｂ：ガイド突部
７：回転部材
７ａ：基盤部
７ｂ：筒状部
７ｃ：ガイド溝
８：クリック板
９：導電パターン（回転検出手段）
１０：下ケース（ハウジング）
１０ａ：収納部
１０ｂ：窪み部
１１：中央固定接点（押圧スイッチ）
１２：周辺固定接点（押圧スイッチ）
１３：可動接点（押圧スイッチ）
１４：クリック部材（押圧スイッチ）
１４ａ：押圧部
１４ｂ：押圧突起
１５：接続端子
１６：蓋体
１７：枠体
１７ａ：屈曲片
１７ｂ：脚部
２２：回転軸
２３：主軸部
２３ａ：Ｄカット部（非円形部）
２３ｂ：先端
２３ｃ：回転駆動部
２４：つまみ取付け部
２４ａ：中空部
２４ｂ：孔
２４ｃ：切り欠き部
２４ｄ：平坦面
２４ｅ：切り溝 1: Upper case (housing)
1a: Shaft hole 1b: Bearing portion 1c: Storage portion 2: Rotating shaft 3: Main shaft portion 3a: D cut portion (non-circular portion)
3b: Tip 3c: Rotation drive part 4: Knob attachment part 4a: Hollow part 4b: Hole 4c: Uneven part 5: Exterior knob 6: Drive member 6a: Base part 6b: Guide protrusion 7: Rotation member 7a: Base part 7b: Cylindrical part 7c: Guide groove 8: Click plate 9: Conductive pattern (rotation detecting means)
10: Lower case (housing)
10a: storage part 10b: hollow part 11: central fixed contact (press switch)
12: Peripheral fixed contact (press switch)
13: Movable contact (press switch)
14: Click member (press switch)
14a: Pressing part 14b: Pressing protrusion 15: Connection terminal 16: Lid 17: Frame 17a: Bending piece 17b: Leg part 22: Rotating shaft 23: Main shaft part 23a: D cut part (non-circular part)
23b: Front end 23c: Rotation drive part 24: Knob attachment part 24a: Hollow part 24b: Hole 24c: Notch part 24d: Flat surface 24e: Cut groove

Claims (8)

一端側に筒状の軸受け部を有し他端側に収納部を有するハウジングと、先端側が前記軸受け部から突出すると共に前記軸受け部に回転可能に保持された回転軸と、前記収納部内に設けられ前記回転軸の回転を検出する回転検出手段とを備え、前記回転軸は、前記軸受け部に挿通される主軸部と、前記軸受け部の先端側の外周面を覆うように前記主軸部と一体的に形成され、外装つまみを装着可能なつまみ取付け部からなることを特徴とする回転型電気部品。   A housing having a cylindrical bearing portion on one end side and a housing portion on the other end side, a rotating shaft whose front end side protrudes from the bearing portion and is rotatably held by the bearing portion, and provided in the housing portion Rotation detecting means for detecting the rotation of the rotating shaft, and the rotating shaft is integrated with the main shaft portion so as to cover a main shaft portion inserted through the bearing portion and an outer peripheral surface on a tip side of the bearing portion. A rotary electric component characterized by comprising a knob mounting portion that is formed in a conventional manner and on which an outer knob can be mounted. 前記回転軸は、前記主軸部を金属材で形成すると共に、前記つまみ取付け部を前記主軸部とは異なる材料で形成し、前記金属材からなる前記主軸部先端を前記つまみ取付け部から露出させた状態で一体的に形成したことを特徴とする請求項１記載の回転型電気部品。   In the rotating shaft, the main shaft portion is formed of a metal material, the knob mounting portion is formed of a material different from the main shaft portion, and the front end of the main shaft portion made of the metal material is exposed from the knob mounting portion. 2. The rotating electrical component according to claim 1, wherein the rotating electrical component is integrally formed in a state. 前記主軸部の一端側には、非円形部を設け、この非円形部により前記主軸部と前記つまみ取付け部を一体的に係合させたことを特徴とする請求項１又は２記載の回転型電気部品。   3. The rotary mold according to claim 1, wherein a non-circular portion is provided on one end side of the main shaft portion, and the main shaft portion and the knob mounting portion are integrally engaged by the non-circular portion. Electrical component. 前記つまみ取付け部を合成樹脂材により形成したことを特徴とする請求項１乃至３の何れかに記載の回転型電気部品。   The rotary electric component according to any one of claims 1 to 3, wherein the knob mounting portion is formed of a synthetic resin material. 前記つまみ取付け部を金属材のダイキャストにより形成したことを特徴とする請求項１乃至３の何れかに記載の回転型電気部品。   4. The rotary electrical component according to claim 1, wherein the knob mounting portion is formed by die-casting a metal material. 前記つまみ取付け部の外周に、前記外装つまみと嵌合する凹凸部あるいは切り欠き部を形成したことを特徴とする請求項１乃至５の何れかに記載の回転型電気部品。   6. The rotating electrical component according to claim 1, wherein an uneven portion or a cutout portion that fits with the exterior knob is formed on an outer periphery of the knob mounting portion. 前記回転軸は、前記軸受け部に回転軸線方向にスライド移動可能とされ、前記ハウジングの収納部には、前記回転軸を押圧操作した時に動作する押圧スイッチを設けたことを特徴とする請求項１乃至６の何れかに記載の回転型電気部品。   The rotary shaft is slidably movable in the direction of the rotational axis with respect to the bearing portion, and a pressing switch that operates when the rotary shaft is pressed is provided in the housing portion of the housing. The rotating electrical component according to any one of Items 6 to 6. 前記回転検出手段は、導電パターンと該導電パターンと摺接する摺動子からなることを特徴とする請求項１乃至７の何れかに記載の回転型電気部品。   The rotary electrical component according to any one of claims 1 to 7, wherein the rotation detecting means includes a conductive pattern and a slider in sliding contact with the conductive pattern.
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CN103947382B (en) * 2014-05-09 2016-05-11 山东省农业机械科学研究院 Detect the sensing device of plant row for facility
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CN1700378A (en) 2005-11-23

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