JP3819726B2

JP3819726B2 - Knob mounting structure

Info

Publication number: JP3819726B2
Application number: JP2001107319A
Authority: JP
Inventors: 寛牛丸
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2001-04-05
Filing date: 2001-04-05
Publication date: 2006-09-13
Anticipated expiration: 2021-04-05
Also published as: JP2002304927A

Description

【０００１】
【発明の属する技術分野】
本発明は、特に、モータ等の回転駆動部材の軸部材に取り付けて好適なツマミの取付構造に関する。
【０００２】
【従来の技術】
従来のツマミの取付構造の図面を説明すると、図４は、従来のツマミの取付構造を示す分解斜視図である。
【０００３】
電動のモータから成る回転駆動部材５１は、略円筒状の本体部５１ａと、本体部１ａの先端部から外方に突出して配設された回転軸などの円柱状の軸部材５１ｂとを有している。この軸部材５１ｂは、本体部５１ａに図示していない端子から通電することによって、所定の回転をし、また、本体部５１ａへの非通電時には、回転軸５１ｂは、時計方向、又は、反時計方向への回転がやや重く、所定の回転トルクを有するように構成されている。
【０００４】
合成樹脂材料から成り、成形加工によって形成された取付部材５２は、基部５３と、基部５３の中心から同一円周上に設けられた円環状の第１の取付部５４と、第１の取付部５４と同心円上で、第１の取付部５４より径寸法が大きい第２の取付部５５とを有している。また、前記第１の取付部５４と第２の取付部５５とは、基部５３の中心軸から外方に突出された鍔状に形成されている。
【０００５】
また、前記基部５３は、略平坦面であるように形成された前面壁５３ａと、該前面壁５３ａの周囲から後方に延びる筒状の側壁部５３ｂとを有している。また、前記円環状の第１の取付部５４と第２の取付部５５とは、筒状の側壁部５３ｂの後端から外方に突出して配設されている。
【０００６】
また、前記基部５３の前記前面壁５３ａは、前記前面壁５３ａの中心に位置する円形の貫通孔５３ｃとを有している。
また、金属材料から成り、インサート成形加工によって一体化された円筒部材５３ｄが、貫通孔５３ｃ内に配設されている。
【０００７】
前記円筒部材５３ｄ内には、回転駆動部材５１の軸部材５１ｂが挿入され、例えば、ネジ（図示せず）止めなどの適宜手段にて、前記円筒部材５３ｄが軸部材５１ｂに取り付けられ、この取り付けによって、取付部材５２が軸部材５１ｂと一体化された状態となり、取付部材５２が軸部材５１ｂと共に回転可能となっている。
【０００８】
合成樹脂材料から成り、成形加工によって形成されたツマミ５６は、円板形の前面壁５６ａと、前面壁５６ａの周囲から後方に延びる筒状の側壁５６ｂと、筒状の側壁５６ｂ内で内方に突出し、同一円周上に位置する複数個（例えば、４個）の掛け止め部５７と、筒状の側壁５６ｂ内で内方に突出し、同一円周上に位置する複数個（例えば、４個）の押さえ部５８とを有している。また、掛け止め部５７と押さえ部５８とは同一円周上に位置している。
【０００９】
このツマミ５６は、前記取付部材５２上を同心的に覆うように取付部材５２の前面に配設された状態で、ツマミ５６の各掛け止め部５７が、円環状の第１の取付部５４に掛け止めされ、且つ、各押さえ部５８が、第２の取付部５５上に当接されて、ツマミ５６と取付部材５２とが結合されている。
そして、この結合によって、取付部材５２の側壁部５３ｂがツマミ５６の側壁５６ｂ内に位置するように配置されている。
【００１０】
次に、上述の従来のツマミの取付構造に係わる組立について説明する。
先ず、回転駆動部材５１の軸部材５１ｂには、取付部材５２と一体化された円筒部材５３ｄを取り付ける。
【００１１】
次に、取付部材５２の前面壁５３ａ上には、ツマミ５６の前面壁５６ａが被さるように対向して配設し、取付部材５２の側壁部５３ｂがツマミ５６の側壁５６ｂ内に位置するように配設されている。
この状態から、ツマミ５６を軸部材５１ｂの軸線方向に押圧すると、掛け止め部５７が第１の取付部５４の頂部を乗り越えて、第１の取付部５４に掛け止めされ、且つ、押さえ部５８が第２の取付部５５上に当接されて配設される。
【００１２】
この掛け止め部５７の第１の取付部５４への掛け止めと、押さえ部５８の第２の取付部５５上への当接によって、ツマミ５６が取付部材５２上に取り付けられる。
【００１３】
【発明が解決しようとする課題】
しかしながら、上述のツマミの取付構造では、ツマミ５６を取付部材５２に押し込んで取り付けする際に、ツマミ５６が取付部材５２に対して傾斜した状態で押し込まれると、取付部材５２がぐらつき、ツマミ５６が取り付け難く、且つ、ツマミ５６のそれぞれの掛け止めが同時にできず、取り付け難いという問題がある。
また、ツマミ５６が取付部材５２に掛け止めされているのみの状態で取り付けされ、このことから、ツマミ５６が取付部材５２に対して空転するという問題がある。
【００１４】
本発明のツマミの取付構造は、上述の問題点を解決し、その目的は、ツマミの取付部材への取り付けが容易であるツマミの取付構造を提供することにある。
【００１５】
【課題を解決するための手段】
本発明のツマミの取付構造は、軸部材に取付られた取付部材と、該取付部材と同心的に配置され、前記取付部材の前面に取付けされたツマミとを備え、取付部材は、平坦部を有する基部と、該基部から前方に突出したストッパー部と、平坦部に設けられた貫通孔とを有すると共に、ツマミは、同一円周上に位置する複数個の突起部を有し、ツマミを取付部材に取付けする際、突起部を平坦部に当接した状態でツマミを、後方に押圧しながら回転すると、突起部が平坦面上を摺接すると共に、突起部がストッパー部にぶつかって、ツマミの回転が停止された時、突起部と貫通孔とが対向した状態となって、突起部が貫通孔に嵌入した後、ツマミと取付部材とが結合可能としたことである。
かかる構成によって、ツマミが取付部材に容易で確実に位置決めされることから、取り付けが簡単であり、また、ツマミが取付部材に対して傾斜した状態で押し込まれても、突起部が平坦面によって、正常な状態でツマミを維持した状態で、ツマミと取付部材とが確実に結合で、ツマミの空転がないツマミの取付構造を提供できる。
【００１６】
また、本発明のツマミの取付構造では、基部は、中心部において、前方に突出する筒状部を有し、突起部が筒状部をガイドにして、回転動作を行うようにしたことである。
かかる構成によって、突起部が筒状部をガイドにして、回転動作を行うようにしたことから、一層正常な状態でツマミを維持した状態で、ツマミと取付部材とが確実に結合できるツマミの取付構造を提供できる。
【００１７】
また、本発明のツマミの取付構造は、貫通孔がストッパー部に隣接して形成されたことである。
かかる構成によって、ツマミの位置決めが確実で、且つ、容易で、組立が簡単で安価で、ツマミの空転がなく、且つ、ガタツキのないツマミの取付構造を提供できる。
【００１８】
また、本発明のツマミの取付構造は、ストッパー部と貫通孔とが複数個設けられたことである。
かかる構成によって、ツマミの取付部材への取り付けがバランス良く安定し、確実な取り付けができるツマミの取付構造を提供できる。
【００１９】
また、本発明のツマミの取付構造では、取付部材の基部は、同一円周上に円環状の取付部を有し、ツマミは、同一円周上に配置された複数個の掛け止め部を有し、取付部材の取付部にツマミの掛け止め部を掛け止めして、両者を結合したことである。
かかる構成によって、ツマミの取付部材への取り付けが容易で、確実な取り付けができるツマミの取付構造を提供できる。
【００２０】
また、本発明のツマミの取付構造では、ツマミは、同一円周上に配置された複数個の押さえ部を有し、それぞれの該押さえ部は、ツマミの掛け止め部間に位置し、且つ、それぞれの該押さえ部は、取付部材の取付部上に当接されていることである。
かかる構成によって、押さえ部によってツマミが取付部材の取付部上に当接されているので、ツマミが安定して取付部材に取り付けできるツマミの取付構造を提供できる。
【００２１】
また、本発明のツマミの取付構造は、取付部材の取付部とツマミの掛け止め部との掛け止めされる位置はツマミの突起部が取付部材の貫通孔内に嵌入される位置よりも、径方向に対して外側に位置していることである。
かかる構成によって、ツマミの突起部よりも大きな径である位置でツマミが取付部材に掛け止めされていることから安定した掛け止めができるツマミの取付構造を提供する。
【００２２】
また、本発明のツマミの取付構造は、回転可能な前記軸部材を有する回転駆動部材を備え、軸部材に取付部材が取り付けられたことである。
かかる構成によって、ツマミの回転動作で取付部材への正常な結合ができるツマミの取付構造を提供できる。
【００２３】
また、本発明のツマミの取付構造は、回転駆動部材がモータにて構成されていることである。
かかる構成によって、単純な構成であるモータを用いることができることから安価なツマミの取付構造を提供できる。
【００２４】
【発明の実施の形態】
以下、本発明のツマミの取付構造の図面を説明すると、図１は、本発明のツマミの取付構造の実施の形態を示す分解斜視図、図２は、図１における２−２線でのツマミの取付構造に係わるツマミと取付部材とを示す断面図、図３は、図１における３−３線でのツマミの取付構造に係わるツマミと取付部材とを示す断面図である。
【００２５】
電動のモータから成る回転駆動部材１は、略円筒状の本体部１ａと、本体部１ａの先端部から外方に突出して配設された円柱状の回転軸などの軸部材１ｂとを有している。この軸部材１ｂは、本体部１ａに図示していない端子から通電することによって、所定の回転をし、また、本体部１ａへの非通電時には、軸部材１ｂは、時計方向、又は、反時計方向への回転がやや重く、所定の回転トルクを有するように構成されている。
【００２６】
合成樹脂材料から成り、成形加工によって形成された取付部材２は、基部３と、基部３から前方に突出し、基部３の中心から同一円周上に設けられた複数個（例えば、２個）のストッパー部４と、基部３の中心から同一円周上に設けられた円環状の取付部５とを有している。
また、基部３は、円形の平坦部３ａと、平坦部３ａの中心を通る直線上に設けられた矩形の複数個（例えば、２個）の第１の貫通孔３ｂと、基部３の平坦部３ａの中心部において、前方に突出する筒状部３ｃと、筒状部３ｃの中心部に設けられた円形の第２の貫通孔３ｄと、平坦部３ａの周囲から後方に末広がりに延びる筒状の側壁部３ｅとを有している。また、前記ストッパー部４と前記第１の貫通孔３ｂとは、平坦部３ａに形成され、且つ、前記第１の貫通孔３ｂが前記ストッパー部４に隣接して形成されている。
【００２７】
また、前記取付部５は、基部３の側壁部３ｅから外方に突出された鍔状に形成され、この取付部５と側壁部３ｅとに跨って、基部３の軸心と平行な方向で、基部３の対向する位置に２本の溝部３ｆが形成されている。
また、金属材料から成り、インサート成形加工によって一体化された円筒部材３ｇが、第２の貫通孔３ｄ内に配設されている。
【００２８】
前記円筒部材３ｇ内には、回転駆動部材１の軸部材１ｂが挿入され、例えば、ネジ（図示せず）止めなどの適宜手段にて、前記円筒部材３ｇが軸部材１ｂに取り付けられて、この取り付けによって、取付部材２が軸部材１ｂと一体化された状態となり、取付部材２が軸部材１ｂと共に回転可能となっている。
【００２９】
合成樹脂材料から成り、成形加工によって形成されたツマミ６は、円形の前面壁６ａと、前面壁６ａの周囲から後方に末広がりに延びる筒状の側壁６ｂと、前面壁６ａの筒状の側壁６ｂ内に位置した状態で、後方（内方）に突出し、同一円周上に位置する複数個（例えば、２個）の突起部７と、筒状の側壁６ｂ内に内方に突出し、同一円周上に位置する複数個（例えば、２個）の掛け止め部８と、筒状の側壁６ｂ内で内方に突出し、同一円周上に位置する複数個（例えば、４個）の押さえ部９とを有している。また、掛け止め部８と押さえ部９とは同一円周上に位置していると共に、押さえ部９が掛け止め部８間に配置されている。
【００３０】
また、複数個（例えば、２個）の突起部７は、中心軸を通る一直線上の位置にそれぞれ配置され、即ち、１８０度の等間隔に配置され、この突起部７は、全体がＬ字状で、その頂部７ａが円弧状に形成されている。
また、複数個（例えば、２個）の掛け止め部８は、前記突起部７の配設されている位置よりも、径方向に対して外側に位置し、且つ、前記突起部７の配設されている位置と一直線上に配設されている。
【００３１】
また、複数個（例えば、４個）の押さえ部９は、前記突起部７の配設されている位置よりも、径方向に対して外側に位置し、且つ、前記掛け止め部８間に位置し、十字状に配設されている。
【００３２】
このツマミ６は、前記取付部材２上を同心的に覆うように取付部材２の前面に配置された状態で、突起部７の頂部７ａが第１の貫通孔３ｂ内に嵌入され、且つ、ツマミ６の掛け止め部８が取付部材２の取付部５に掛け止めされ、押さえ部９は、取付部５上に当接されて、ツマミ６と取付部材２との両者が結合されて取り付けられている。
【００３３】
そして、この結合によって、取付部材２の基部３がツマミ６の側壁６ｂ内に位置するように配置されている。
【００３４】
次に、上述の本発明のツマミの取付構造に係わる組立について説明する。
先ず、回転駆動部材１の軸部材１ｂには、取付部材２と一体化された円筒部材３ｇを取り付ける。
【００３５】
次に、取付部材２の基部３の平坦部３ａ上に、ツマミ６の前面壁６ａの後方（内方）に突出した突起部７の頂部７ａを当接させてツマミ６を回転させると、突起部７が筒状部３ｃの外周部にガイドされて回転する。これによって、ツマミ６は、取付部材２に対して正常な状態に位置規制が行われる。
【００３６】
このように、ツマミ６を軸部材１ｂの軸線方向（後方）に押圧しながら、例えば時計方向に回転動作すると、突起部７が平坦面３ａ上を摺接して、突起部７がストッパー部４にぶつかって、ツマミ６の回転が停止される。
【００３７】
そして、このツマミ６が停止された時には、突起部７と第１の貫通孔３ｂとが対向した状態となって、ツマミ６が軸線方向（後方）に移動し、突起部７が第１の貫通孔３ｂ内に嵌入する。
そして、この突起部７の第１の貫通孔３ｂへの嵌入と同時に、各掛け止め部８が取付部材２の取付部５に掛け止めされ、且つ、押さえ部９が取付部５上に当接されている。
この取付部５への各掛け止め部８の掛け止めと、第１の貫通孔３ｂ内への突起部７の頂部７ａの嵌入とによって、ツマミ６と取付部材２とが結合される。
【００３８】
なお、上述の実施例では、ツマミの突起部が一直線上の位置に配設されているが、これに限定されず、一個、又は、三個以上の突起部が所定の位置に配設され、それに対向して取付部材の貫通孔が形成されていれば良い。
また、上述の実施例では、軸部材を有する回転駆動部材がモータにて構成されたもので説明したが、これに限定されず、回転駆動部材は、エンコーダなどの回転型の電気部品や機構部品などであればよい。
【００３９】
【発明の効果】
以上のように、本発明のツマミの取付構造では、取付部材は、平坦部を有する基部と、該基部から前方に突出したストッパー部と、平坦部に設けられた貫通孔とを有すると共に、ツマミは、同一円周上に位置する複数個の突起部を有し、ツマミを取付部材に取付けする際、突起部を平坦部に当接した状態でツマミを、後方に押圧しながら回転すると、突起部が平坦面上を摺接すると共に、突起部がストッパー部にぶつかって、ツマミの回転が停止された時、突起部と貫通孔とが対向した状態となって、突起部が貫通孔に嵌入した後、ツマミと取付部材とが結合可能としたことによって、ツマミが取付部材に容易で確実に位置決めされることから、取り付けが簡単であり、また、ツマミが取付部材に対して傾斜した状態で押し込まれても、突起部が平坦面によって、正常な状態でツマミを維持した状態で、ツマミと取付部材とが確実に結合できるツマミの取付構造を提供できる。
【００４０】
また、本発明のツマミの取付構造では、基部は、中心部において、前方に突出する筒状部を有し、突起部が筒状部をガイドにして、回転動作を行うようにしたことによって、突起部が筒状部をガイドにして、回転動作を行うようにしたことから、一層正常な状態でツマミを維持した状態で、ツマミと取付部材とが確実に結合できるツマミの取付構造を提供できる。
【００４１】
また、本発明のツマミの取付構造では、取付部材の基部は、同一円周上に円環状の取付部を有し、ツマミは、同一円周上に配置された複数個の掛け止め部を有し、取付部材の取付部にツマミの掛け止め部を掛け止めして、両者を結合したことによって、ツマミの取付部材への取り付けが容易で、確実な取り付けができるツマミの取付構造を提供できる。
【００４２】
また、本発明のツマミの取付構造は、取付部材の取付部とツマミの掛け止め部との掛け止めされる位置はツマミの突起部が取付部材の貫通孔内に嵌入される位置よりも、径方向に対して外側に位置していることによって、ツマミの突起部よりも大きな径である位置でツマミが取付部材に掛け止めされていることから安定した掛け止めができるツマミの取付構造を提供する。
【図面の簡単な説明】
【図１】本発明のツマミの取付構造の実施の形態を示す分解斜視図である。
【図２】図１における２−２線でのツマミの取付構造に係わるツマミと取付部材とを示す断面図である
【図３】図１における３−３線でのツマミの取付構造に係わるツマミと取付部材とを示す断面図である。
【図４】従来のツマミの取付構造を示す分解斜視図である。
【符号の説明】
１回転駆動部材（モータ）
１ｂ軸部材
２取付部材
３基部
３ａ平坦部
３ｂ第１の貫通孔（貫通孔）
３ｃ筒状部
３ｅ側壁部
４ストッパー部
５取付部
６ツマミ
６ａ前面壁
６ｂ側壁
７突起部
８掛け止め部
９押さえ部[0001]
BACKGROUND OF THE INVENTION
The present invention particularly relates to a knob mounting structure suitable for mounting on a shaft member of a rotary drive member such as a motor.
[0002]
[Prior art]
A conventional knob mounting structure will be described. FIG. 4 is an exploded perspective view showing a conventional knob mounting structure.
[0003]
The rotation drive member 51 made of an electric motor has a substantially cylindrical main body 51a and a columnar shaft member 51b such as a rotation shaft disposed to protrude outward from the tip of the main body 1a. ing. The shaft member 51b rotates a predetermined amount by energizing the main body 51a from a terminal (not shown). When the main body 51a is not energized, the rotation shaft 51b rotates clockwise or counterclockwise. The rotation in the direction is slightly heavy and is configured to have a predetermined rotational torque.
[0004]
The mounting member 52 made of a synthetic resin material and formed by molding includes a base 53, an annular first mounting portion 54 provided on the same circumference from the center of the base 53, and a first mounting portion. 54 and a second mounting portion 55 having a diameter larger than that of the first mounting portion 54 on a concentric circle. Further, the first mounting portion 54 and the second mounting portion 55 are formed in a bowl shape protruding outward from the central axis of the base portion 53.
[0005]
The base 53 includes a front wall 53a formed so as to be a substantially flat surface, and a cylindrical side wall 53b extending rearward from the periphery of the front wall 53a. The annular first mounting portion 54 and the second mounting portion 55 are disposed so as to protrude outward from the rear end of the cylindrical side wall portion 53b.
[0006]
Further, the front wall 53a of the base 53 has a circular through hole 53c located at the center of the front wall 53a.
Moreover, the cylindrical member 53d which consists of metal materials and was integrated by insert molding process is arrange | positioned in the through-hole 53c.
[0007]
The shaft member 51b of the rotational drive member 51 is inserted into the cylindrical member 53d, and the cylindrical member 53d is attached to the shaft member 51b by appropriate means such as screwing (not shown), for example. As a result, the mounting member 52 is integrated with the shaft member 51b, and the mounting member 52 can rotate together with the shaft member 51b.
[0008]
The knob 56 made of a synthetic resin material and formed by a molding process includes a disk-shaped front wall 56a, a cylindrical side wall 56b extending rearward from the periphery of the front wall 56a, and an inner side within the cylindrical side wall 56b. And a plurality of (for example, four) latching portions 57 positioned on the same circumference and a plurality of (for example, four) positions protruding inward within the cylindrical side wall 56b and positioned on the same circumference. A plurality of pressing portions 58. Moreover, the latching part 57 and the pressing part 58 are located on the same circumference.
[0009]
The knob 56 is disposed on the front surface of the mounting member 52 so as to cover the mounting member 52 concentrically, and each latching portion 57 of the knob 56 is attached to the annular first mounting portion 54. Each pressing part 58 is brought into contact with the second attachment part 55 and the knob 56 and the attachment member 52 are coupled to each other.
And by this coupling | bonding, it arrange | positions so that the side wall part 53b of the attachment member 52 may be located in the side wall 56b of the knob 56. FIG.
[0010]
Next, assembly related to the above-described conventional knob mounting structure will be described.
First, the cylindrical member 53d integrated with the attachment member 52 is attached to the shaft member 51b of the rotation drive member 51.
[0011]
Next, on the front wall 53 a of the mounting member 52, the knob 56 is disposed so as to cover the front wall 56 a, and the side wall portion 53 b of the mounting member 52 is positioned within the side wall 56 b of the knob 56. It is arranged.
From this state, when the knob 56 is pressed in the axial direction of the shaft member 51b, the latching portion 57 gets over the top of the first mounting portion 54, is latched by the first mounting portion 54, and the pressing portion 58 is pressed. Is disposed in contact with the second mounting portion 55.
[0012]
The knob 56 is mounted on the mounting member 52 by the hooking of the hooking portion 57 to the first mounting portion 54 and the contact of the pressing portion 58 on the second mounting portion 55.
[0013]
[Problems to be solved by the invention]
However, in the above attachment structure of the knob, when the knob 56 is pushed into the attachment member 52 and attached, if the knob 56 is pushed in an inclined state with respect to the attachment member 52, the attachment member 52 wobbles and the knob 56 is moved. There is a problem that it is difficult to attach and the knobs 56 cannot be latched at the same time, making it difficult to attach.
Further, the knob 56 is attached in a state where it is only latched on the attachment member 52, and there is a problem that the knob 56 rotates idly with respect to the attachment member 52.
[0014]
The knob mounting structure of the present invention solves the above-described problems, and an object thereof is to provide a knob mounting structure that can be easily mounted on a mounting member.
[0015]
[Means for Solving the Problems]
The knob mounting structure of the present invention includes an attachment member attached to a shaft member, and a knob disposed concentrically with the attachment member and attached to the front surface of the attachment member, and the attachment member has a flat portion. And a stopper part protruding forward from the base part, and a through-hole provided in the flat part, and the knob has a plurality of protrusions located on the same circumference, and the knob is attached When attaching to a member, if the knob is rotated while pressing the protrusion back while the protrusion is in contact with the flat part, the protrusion will slide on the flat surface and the protrusion will hit the stopper part. When the rotation is stopped, the protrusion and the through hole face each other, and after the protrusion is inserted into the through hole, the knob and the attachment member can be coupled.
With this configuration, the knob is easily and reliably positioned on the mounting member, so that the mounting is simple, and even if the knob is pushed in a state inclined with respect to the mounting member, the protrusion is formed by the flat surface. In a state where the knob is maintained in a normal state, the knob and the mounting member can be securely coupled to each other, and a knob mounting structure in which the knob does not slip can be provided.
[0016]
Further, in the knob mounting structure of the present invention, the base portion has a cylindrical portion protruding forward at the center portion, and the projection portion rotates with the cylindrical portion as a guide. .
With this configuration, the protrusion is designed to rotate with the cylindrical portion as a guide, so that the knob can be securely connected to the mounting member while maintaining the knob in a more normal state. Can provide structure.
[0017]
The knob mounting structure of the present invention is that the through hole is formed adjacent to the stopper portion.
With this configuration, it is possible to provide a knob mounting structure in which the knob positioning is reliable, easy, easy to assemble, inexpensive, no knob slipping, and no rattling.
[0018]
The knob mounting structure of the present invention is provided with a plurality of stopper portions and through holes.
With this configuration, it is possible to provide a knob mounting structure in which the mounting of the knob to the mounting member is stable in a well-balanced and reliable manner.
[0019]
In the knob mounting structure of the present invention, the base portion of the mounting member has an annular mounting portion on the same circumference, and the knob has a plurality of latching portions arranged on the same circumference. In addition, the hook latching portion is hooked on the mounting portion of the mounting member, and both are coupled.
With this configuration, it is possible to provide a knob mounting structure that allows easy mounting of the knob to the mounting member and enables reliable mounting.
[0020]
Further, in the knob mounting structure of the present invention, the knob has a plurality of pressing portions disposed on the same circumference, each of the pressing portions being located between the latching portions of the knob, and Each of the pressing portions is in contact with the mounting portion of the mounting member.
With this configuration, the knob is brought into contact with the attachment portion of the attachment member by the pressing portion, so that it is possible to provide a knob attachment structure in which the knob can be stably attached to the attachment member.
[0021]
Further, in the knob mounting structure of the present invention, the position at which the mounting portion of the mounting member and the latching portion of the knob are latched is larger than the position at which the protrusion of the knob is inserted into the through hole of the mounting member. It is located outside the direction.
With this configuration, a knob mounting structure that can be stably latched is provided because the knob is latched on the mounting member at a position that is larger in diameter than the protrusion of the knob.
[0022]
Further, the knob mounting structure of the present invention includes a rotation drive member having the rotatable shaft member, and the mounting member is attached to the shaft member.
With this configuration, it is possible to provide a knob mounting structure that can be normally coupled to the mounting member by rotating the knob.
[0023]
Moreover, the knob mounting structure of the present invention is that the rotation drive member is constituted by a motor.
With this configuration, since a motor having a simple configuration can be used, an inexpensive knob mounting structure can be provided.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the drawings of the knob mounting structure of the present invention will be described. FIG. 1 is an exploded perspective view showing an embodiment of the knob mounting structure of the present invention, and FIG. 2 is a knob taken along line 2-2 in FIG. FIG. 3 is a cross-sectional view showing the knob and the mounting member related to the knob mounting structure taken along line 3-3 in FIG. 1.
[0025]
A rotary drive member 1 made of an electric motor has a substantially cylindrical main body 1a and a shaft member 1b such as a columnar rotation shaft disposed so as to protrude outward from the tip of the main body 1a. ing. The shaft member 1b rotates a predetermined amount by energizing the main body portion 1a from a terminal (not shown). When the main body portion 1a is not energized, the shaft member 1b is rotated clockwise or counterclockwise. The rotation in the direction is slightly heavy and is configured to have a predetermined rotational torque.
[0026]
The mounting member 2 made of a synthetic resin material and formed by molding processing has a base 3 and a plurality of (for example, two) pieces that protrude forward from the base 3 and are provided on the same circumference from the center of the base 3. It has a stopper portion 4 and an annular mounting portion 5 provided on the same circumference from the center of the base portion 3.
The base 3 includes a circular flat portion 3a, a plurality of (for example, two) first through holes 3b provided on a straight line passing through the center of the flat portion 3a, and a flat portion of the base 3. In the central portion of 3a, a cylindrical portion 3c protruding forward, a circular second through hole 3d provided in the central portion of the cylindrical portion 3c, and a cylindrical shape extending from the periphery of the flat portion 3a to the rear end Side wall portion 3e. The stopper portion 4 and the first through hole 3 b are formed in the flat portion 3 a, and the first through hole 3 b is formed adjacent to the stopper portion 4.
[0027]
The mounting portion 5 is formed in a bowl shape protruding outward from the side wall portion 3e of the base portion 3, and extends in a direction parallel to the axis of the base portion 3 across the mounting portion 5 and the side wall portion 3e. Two groove portions 3f are formed at positions facing the base portion 3.
Further, a cylindrical member 3g made of a metal material and integrated by insert molding is disposed in the second through hole 3d.
[0028]
The shaft member 1b of the rotational drive member 1 is inserted into the cylindrical member 3g, and the cylindrical member 3g is attached to the shaft member 1b by appropriate means such as screwing (not shown), for example. By mounting, the mounting member 2 is integrated with the shaft member 1b, and the mounting member 2 can rotate together with the shaft member 1b.
[0029]
A knob 6 made of a synthetic resin material and formed by molding includes a circular front wall 6a, a cylindrical side wall 6b extending backward from the periphery of the front wall 6a, and a cylindrical side wall 6b of the front wall 6a. In the state where it is located inside, it protrudes inward (inward), protrudes inwardly into a plurality of (for example, two) protrusions 7 located on the same circumference, and the cylindrical side wall 6b, and the same circle Plural (e.g., two) latching portions 8 located on the circumference and a plurality (e.g., four) holding portions that project inwardly within the cylindrical side wall 6b and are located on the same circumference. 9. The latching portion 8 and the pressing portion 9 are located on the same circumference, and the pressing portion 9 is disposed between the latching portions 8.
[0030]
A plurality of (for example, two) protrusions 7 are arranged at positions on a straight line passing through the central axis, that is, are arranged at equal intervals of 180 degrees. The protrusions 7 are entirely L-shaped. The top 7a is formed in an arc shape.
Further, a plurality of (for example, two) latching portions 8 are located on the outer side with respect to the radial direction from the position where the protrusion 7 is disposed, and the protrusion 7 is disposed. It is arrange | positioned in line with the position currently made.
[0031]
In addition, a plurality of (for example, four) pressing portions 9 are located on the outer side in the radial direction from the position where the protruding portion 7 is disposed, and are positioned between the latching portions 8. However, they are arranged in a cross shape.
[0032]
The knob 6 is arranged on the front surface of the mounting member 2 so as to cover the mounting member 2 concentrically, and the top portion 7a of the protrusion 7 is fitted into the first through hole 3b. 6 is latched to the mounting portion 5 of the mounting member 2, and the pressing portion 9 is brought into contact with the mounting portion 5, and the knob 6 and the mounting member 2 are coupled and mounted. Yes.
[0033]
And by this coupling | bonding, it arrange | positions so that the base 3 of the attachment member 2 may be located in the side wall 6b of the knob 6. FIG.
[0034]
Next, assembly relating to the above-described knob mounting structure of the present invention will be described.
First, the cylindrical member 3g integrated with the attachment member 2 is attached to the shaft member 1b of the rotation drive member 1.
[0035]
Next, when the top portion 7a of the protruding portion 7 protruding rearward (inward) of the front wall 6a of the knob 6 is brought into contact with the flat portion 3a of the base portion 3 of the mounting member 2, the knob 6 is rotated. The portion 7 is guided by the outer peripheral portion of the cylindrical portion 3c and rotates. As a result, the position of the knob 6 is regulated in a normal state with respect to the mounting member 2.
[0036]
In this way, when the knob 6 is pressed in the axial direction (backward) of the shaft member 1 b and rotated, for example, in the clockwise direction, the protrusion 7 comes into sliding contact with the flat surface 3 a, and the protrusion 7 contacts the stopper 4. The bump 6 stops and the rotation of the knob 6 is stopped.
[0037]
When the knob 6 is stopped, the protrusion 7 and the first through hole 3b are opposed to each other, the knob 6 moves in the axial direction (rearward), and the protrusion 7 is in the first penetration. It fits in the hole 3b.
At the same time when the protrusion 7 is fitted into the first through hole 3 b, each latching portion 8 is latched on the mounting portion 5 of the mounting member 2, and the pressing portion 9 abuts on the mounting portion 5. Has been.
The knob 6 and the mounting member 2 are coupled by the latching of each latching portion 8 to the mounting portion 5 and the fitting of the top portion 7a of the protruding portion 7 into the first through hole 3b.
[0038]
In the above-described embodiment, the knob protrusions are arranged at a straight line, but the present invention is not limited to this, and one or three or more protrusions are arranged at predetermined positions. The through-hole of the attachment member may be formed so as to face it.
In the above-described embodiments, the rotation driving member having the shaft member is described as being configured by a motor. However, the rotation driving member is not limited to this, and the rotation driving member may be a rotary electrical component such as an encoder or a mechanical component. And so on.
[0039]
【The invention's effect】
As described above, in the knob mounting structure of the present invention, the mounting member has a base portion having a flat portion, a stopper portion projecting forward from the base portion, and a through hole provided in the flat portion, and the knob. Has a plurality of protrusions located on the same circumference, and when attaching the knob to the mounting member, if the knob is rotated while pressing the back while the protrusion is in contact with the flat part, the protrusion When the projection part hits the stopper part and the rotation of the knob is stopped, the projection part and the through hole face each other, and the projection part fits into the through hole. After that, since the knob and the mounting member can be coupled, the knob can be easily and reliably positioned on the mounting member, so that the mounting is simple, and the knob is pushed in a state inclined with respect to the mounting member. Protrusion The flat surface, while maintaining the knob in a normal state, it provides a mounting structure of knob and the knob and the mounting member can be reliably bonded.
[0040]
Further, in the knob mounting structure of the present invention, the base portion has a cylindrical portion that protrudes forward at the center portion, and the protruding portion performs a rotation operation using the cylindrical portion as a guide. Since the projecting portion rotates with the cylindrical portion as a guide, it is possible to provide a knob mounting structure in which the knob and the mounting member can be reliably coupled in a state where the knob is maintained in a more normal state. .
[0041]
In the knob mounting structure of the present invention, the base portion of the mounting member has an annular mounting portion on the same circumference, and the knob has a plurality of latching portions arranged on the same circumference. In addition, by attaching the tab latching portion to the mounting portion of the mounting member and coupling them together, it is possible to provide a knob mounting structure in which the knob can be easily mounted on the mounting member and can be securely mounted.
[0042]
Further, in the knob mounting structure of the present invention, the position at which the mounting portion of the mounting member and the latching portion of the knob are latched is larger than the position at which the protrusion of the knob is fitted into the through hole of the mounting member. Provided is a knob mounting structure that can be stably latched because the knob is latched on the mounting member at a position that is larger in diameter than the protrusion of the knob by being located on the outside with respect to the direction. .
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of a knob mounting structure of the present invention.
2 is a cross-sectional view showing a knob and a mounting member related to a knob mounting structure taken along line 2-2 in FIG. 1. FIG. 3 is a knob related to a knob mounting structure taken along line 3-3 in FIG. It is sectional drawing which shows a mounting member.
FIG. 4 is an exploded perspective view showing a conventional knob mounting structure.
[Explanation of symbols]
1 Rotation drive member (motor)
1b Shaft member 2 Mounting member 3 Base portion 3a Flat portion 3b First through hole (through hole)
3c Cylindrical part 3e Side wall part 4 Stopper part 5 Mounting part 6 Knob 6a Front wall 6b Side wall 7 Projection part 8 Latch part 9 Holding part

Claims

An attachment member attached to the shaft member, and a knob disposed concentrically with the attachment member and attached to the front surface of the attachment member;
The mounting member includes a base portion having a flat portion, a stopper portion protruding forward from the base portion, and a through-hole provided in the flat portion, and the knobs are a plurality of knobs positioned on the same circumference. When the knob is attached to the mounting member, when the knob is rotated while pressing the knob backward while the protrusion is in contact with the flat portion, the protrusion becomes the flat surface. When the protrusion hits the stopper and the rotation of the knob is stopped, the protrusion and the through hole face each other so that the protrusion is in contact with the through hole. The knob mounting structure is characterized in that the knob and the mounting member can be coupled after being fitted into the knob.

The knob according to claim 1, wherein the base portion has a cylindrical portion that protrudes forward at the center portion, and the protruding portion rotates with the cylindrical portion as a guide. Mounting structure.

The knob mounting structure according to claim 1, wherein the through hole is formed adjacent to the stopper portion.

4. The knob mounting structure according to claim 1, wherein a plurality of the stopper portions and the through holes are provided.

The base of the attachment member has an annular attachment portion on the same circumference, and the knob has a plurality of latching portions arranged on the same circumference, and the attachment of the attachment member The knob mounting structure according to claim 1, wherein the latching part of the knob is latched to a part, and both are coupled.

The knob has a plurality of pressing portions arranged on the same circumference, each of the pressing portions is located between the latching portions of the knob, and each of the pressing portions is The knob mounting structure according to claim 5, wherein the knob is in contact with the mounting portion of the mounting member.

The position at which the mounting portion of the mounting member and the latching portion of the knob are latched with respect to the radial direction is greater than the position at which the protrusion of the knob is fitted into the through hole of the mounting member. The knob mounting structure according to claim 5, wherein the knob mounting structure is located outside.

The knob mounting structure according to claim 1, further comprising a rotation driving member having the rotatable shaft member, wherein the mounting member is attached to the shaft member.

9. The knob mounting structure according to claim 8, wherein the rotation driving member is constituted by a motor.