JP2011238447A - Rotating operation type input device - Google Patents

Rotating operation type input device Download PDF

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JP2011238447A
JP2011238447A JP2010108307A JP2010108307A JP2011238447A JP 2011238447 A JP2011238447 A JP 2011238447A JP 2010108307 A JP2010108307 A JP 2010108307A JP 2010108307 A JP2010108307 A JP 2010108307A JP 2011238447 A JP2011238447 A JP 2011238447A
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annular cam
input device
protrusion
leaf spring
type input
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Mccurdy Anthony
アンソニー マッカーディ
Tatsuya Yokoyama
達也 横山
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a rotating operation type input device capable of generating a light operation sound when it is rotationally operated and preventing undesired rotational backlash when it is not operated.SOLUTION: A rotating operation type input device 20 comprises: an operation member 1 rotatably supported by a base 3; an annular cam 5 integrally rotated with the operation member 1; a first elastic member 6 in which a leaf spring 6b elastically biases a first protrusion 6a that can be detachably engaged with the annular cam 5; and a second elastic member 7 in which a second leaf spring 7c elastically biases a second protrusion 7a that can be detachably engaged with the annular cam 5. An outer edge 6c of the leaf spring 6b faces a wall surface 3b in the base 3 so as to be brought into contact with or separated from the wall surface 3b. When the rotating operation type input device 20 is rotationally operated, the outer edge 6c collides with the wall surface 3b on the upstream side in the rotational direction to thereby generate an operation sound. Meanwhile, a fitting part 7b of the second elastic member 7 is latched onto a support boss 3c in the base 3. When the rotating operation type input device 20 is not operated, the second protrusion 7a engages with a recess 5a so as to prevent the annular cam 5 from rotating freely.

Description

本発明は、回転操作時にクリック感を生成するクリック機構を備えた回転操作型入力装置に関するものである。   The present invention relates to a rotation operation type input device including a click mechanism that generates a click feeling during a rotation operation.

基台に回転可能に支持された操作部材をユーザが回転操作することにより、操作部材の回転位置等に応じた信号を検出する回転操作型入力装置においては、所定の角度ピッチでクリック感が生成されるようになっていると回転操作量を把握しやすくなるため、クリック感を生成するクリック機構が内蔵されていることが多い。従来、このようなクリック機構の一例として、操作部材と同軸で一体的に回転する回転体に凹部と凸部が周方向に交互に連設されてなる環状カム部を設けると共に、コイルばねに保持された鋼球を該環状カム部に弾接させるという構成のものが知られている。この種のクリック機構では、コイルばねに弾性付勢される鋼球を環状カム部の任意の凹部に嵌入させることができ、非操作時には鋼球がいずれかの凹部内に嵌入しているため回転体の自由な回転は阻止されている。また、操作部材に回転操作力が加えられて回転体が回転すると、鋼球は環状カム部の凹部から凸部を乗り越えて隣の凹部内に嵌入するという係脱動作を繰り返すことになる。その際、回転体に作用するコイルばねの反力は、鋼球が環状カム部の凸部を乗り越えるまでは増大し、乗り越えた直後に急減するため、鋼球が凸部を乗り越える度にクリック感が生起され、このクリック感をユーザの手指に感得させることができる。   In the rotary operation type input device that detects a signal corresponding to the rotation position of the operation member, etc., when the user rotates the operation member supported rotatably on the base, a click feeling is generated at a predetermined angular pitch. Since it becomes easier to grasp the amount of rotation operation, a click mechanism for generating a click feeling is often built in. Conventionally, as an example of such a click mechanism, an annular cam portion in which concave portions and convex portions are alternately arranged in the circumferential direction is provided on a rotating body that rotates coaxially and integrally with an operation member, and is held by a coil spring. There is known a structure in which the formed steel ball is brought into elastic contact with the annular cam portion. With this type of click mechanism, the steel ball elastically biased by the coil spring can be inserted into any recess in the annular cam portion, and the steel ball is inserted into one of the recesses when not in operation. Free rotation of the body is prevented. In addition, when a rotating operation force is applied to the operating member and the rotating body rotates, the engagement and disengagement operation that the steel ball gets over the convex portion from the concave portion of the annular cam portion and fits into the adjacent concave portion is repeated. At that time, the reaction force of the coil spring acting on the rotating body increases until the steel ball rides over the convex part of the annular cam part, and decreases rapidly immediately after getting over the convex part of the annular cam part. Is generated, and the user's fingers can feel this click feeling.

しかしながら、コイルばねに保持された鋼球を環状カム部に弾接させるという構成のクリック機構を採用した場合、環状カム部を有する回転体の外側に鋼球と圧接状態のコイルばねを組み込む必要があるため、部品点数が増えて組立作業性も悪くなるという難点がある。そこで従来より、中央部に突起部を設けた板ばねを基台に組み込み、この突起部を環状カム部に弾接させるという構成のクリック機構を採用した回転操作型入力装置が知られている(例えば、特許文献1参照)。かかるクリック機構では、操作部材の回転に伴い板ばねの突起部が環状カム部に対して係脱するため、前述した鋼球と同様に回転操作時にクリック感を生じさせることができ、しかも突起部付きの板ばねを組み込むだけでよいため、部品点数を削減できて組立作業も容易に行える。   However, when the click mechanism configured to elastically contact the steel ball held by the coil spring to the annular cam portion, it is necessary to incorporate a coil spring in pressure contact with the steel ball outside the rotating body having the annular cam portion. Therefore, there is a problem that the number of parts increases and the assembly workability also deteriorates. Therefore, conventionally, a rotary operation type input device employing a click mechanism in which a leaf spring having a protrusion at the center is incorporated in a base and this protrusion is elastically contacted with an annular cam is known ( For example, see Patent Document 1). In such a click mechanism, the protrusion of the leaf spring is engaged with and disengaged from the annular cam portion with the rotation of the operation member, so that a click feeling can be generated during the rotation operation as in the case of the steel ball described above. Since it is only necessary to incorporate a leaf spring with a flange, the number of parts can be reduced and assembly work can be easily performed.

特開平11−232966号公報JP-A-11-232966

ところで、前述したように板ばねと一体の突起部を環状カム部に弾接させるという構成のクリック機構においては、突起部が環状カム部の凸部を乗り越えるまで板ばねが徐々に押し撓められていくため、突起部が凸部を乗り越えると、板ばねの端部が弾性復帰力で基台内の壁面等に勢いよくぶつかって衝突音を生じやすい。こうした衝突音を緩和するために板ばねに緩衝部材を付設することもあるが、本発明者らが詳しく調べたところ、板ばねの外縁端を適宜クリアランスを存して基台内の壁面と接離可能に対向させておけば、この外縁端が壁面に衝突したときに生じる音が耳障りでない「チッ」という短い音になることを確認できた。そして、この衝突音を意図的に利用すれば、操作部材の回転操作時に「チッチッチッ…」という軽快な操作音を回転操作量に応じて発生させることが可能となるため、ユーザは手指に伝わるクリック感だけでなく、かかる操作音によっても回転操作量を把握できることになる。つまり、クリック機構で用いる板ばねを操作音の発生手段として兼用することにより、回転操作型入力装置の付加価値を高めたり差別化が図れるものと期待できる。   By the way, as described above, in the click mechanism configured to elastically contact the projection part integral with the leaf spring to the annular cam part, the leaf spring is gradually pushed and bent until the projection part gets over the convex part of the annular cam part. Therefore, when the protruding portion climbs over the protruding portion, the end of the leaf spring strikes the wall surface or the like in the base with an elastic restoring force, and a collision noise is likely to be generated. In order to alleviate such a collision noise, a buffer member may be attached to the leaf spring. However, as a result of detailed investigations by the present inventors, the outer edge of the leaf spring is in contact with the wall surface in the base with an appropriate clearance. It was confirmed that the sound generated when the outer edge collides with the wall surface becomes a short “tick” sound that is not detrimental if it is made to face each other. If the collision sound is intentionally used, a light operation sound “titch tick” can be generated according to the amount of rotation operation when the operation member is rotated. The amount of rotation operation can be grasped not only by feeling but also by such operation sound. That is, it can be expected that the leaf spring used in the click mechanism is also used as the operation sound generating means to increase the added value of the rotary operation type input device or to differentiate it.

しかしながら、上記のようにクリック機構で用いる板ばねの外縁端を所定クリアランスを存して基台内の壁面と接離可能に対向させると、非操作時にこのクリアランス分だけ環状カム部の回転が許容されてしまうため、回転操作型入力装置の操作部材に不所望な回転ガタ(遊び)が発生してしまう。それゆえ、クリック機構の板ばねを利用して回転操作量に応じた操作音を発生させる場合には、操作部材の回転ガタを防止する対策についても併せて考慮する必要がある。   However, if the outer edge of the leaf spring used in the click mechanism is opposed to the wall surface in the base so as to be able to come into contact with and away from it, as described above, the annular cam portion is allowed to rotate by this clearance during non-operation. Therefore, undesired rotation play (play) occurs in the operation member of the rotary operation type input device. Therefore, when the operation sound corresponding to the rotation operation amount is generated using the leaf spring of the click mechanism, it is necessary to consider a countermeasure for preventing the rotation play of the operation member.

本発明は、このような従来技術の実情に鑑みてなされたもので、その目的は、回転操作時に軽快な操作音を生じさせることができて非操作時には不所望な回転ガタが発生しない回転操作型入力装置を提供することにある。   The present invention has been made in view of the situation of the prior art as described above, and its purpose is a rotational operation that can generate a light operation sound during a rotational operation and does not generate an undesirable rotational backlash when not operated. It is to provide a mold input device.

上記の目的を達成するために、本発明の回転操作型入力装置は、基台と、この基台に回転可能に支持された操作部材と、この操作部材と一体的に回転して周方向に凹部と凸部が交互に連設された環状カム部と、この環状カム部に弾接する弾性手段とを備え、前記操作部材の回転操作時に前記環状カム部と前記弾性手段との協働によりクリック感触が生起される回転操作型入力装置において、前記弾性手段が前記基台に組み込まれた操作音発生手段とガタ防止手段とからなり、前記操作音発生手段が、前記環状カム部に対して係脱可能な第1突起部と、この第1突起部を前記環状カム部に向けて弾性付勢する板ばね部とを有すると共に、前記ガタ防止手段が前記環状カム部に対して係脱可能に弾性付勢された第2突起部を有し、前記板ばね部の外縁端をクリアランスを存して前記基台内の壁面と接離可能に対向させることにより、前記操作部材の回転操作に伴って前記第1突起部が前記凸部を乗り越えたときに前記板ばね部の外縁端が前記壁面に衝突するようになし、かつ、前記操作部材の非操作時に前記第1突起部よりも回転方向のガタが小さく設定された前記第2突起部が前記環状カム部の回転を規制するように構成した。   In order to achieve the above object, a rotary operation type input device according to the present invention includes a base, an operation member rotatably supported by the base, and an integral rotation with the operation member in the circumferential direction. An annular cam portion in which concave portions and convex portions are alternately arranged, and an elastic means that elastically contacts the annular cam portion, and is clicked by the cooperation of the annular cam portion and the elastic means when the operating member is rotated. In the rotary operation type input device in which a feeling is generated, the elastic means includes an operation sound generation means and a backlash prevention means incorporated in the base, and the operation sound generation means is engaged with the annular cam portion. A first projecting portion that can be detached; and a leaf spring portion that elastically biases the first projecting portion toward the annular cam portion; and the backlash preventing means is detachable from the annular cam portion. A second protrusion that is elastically biased, and The leaf spring is moved when the first protrusion has moved over the convex portion with the rotation of the operation member by allowing the edge to face the wall in the base so as to be able to contact and separate with clearance. The outer edge of the part collides with the wall surface, and the second protrusion part, in which the backlash in the rotation direction is set smaller than the first protrusion part when the operation member is not operated, is the annular cam part. It was configured to regulate rotation.

このように構成された回転操作型入力装置では、操作部材の回転操作に伴って環状カム部が一体的に回転するため、この環状カム部に対して第1および第2突起部が係脱してクリック感触を生起することになる。その際、第1突起部が環状カム部の凸部に駆動されて板ばね部が押し撓められるのに伴い、操作部材の回転方向上流側で板ばね部の外縁端とこれに対向する基台内の壁面との間のクリアランスが広がっていくため、第1突起部が環状カム部の凸部を乗り越えると、板ばね部の弾性復帰力でその外縁端が壁面に勢いよくぶつかって短い衝突音を発生する。それゆえ、操作部材の回転操作時に所定の角度ピッチで衝突音が連続的に聞こえることになり、回転操作量を把握できる軽快な操作音を発生させることができる。また、操作部材の非操作時には、環状カム部の凹部に嵌入している第2突起部によって環状カム部の自由な回転が阻止されているため、操作部材に不所望な回転ガタが発生しなくなる。しかも、操作音発生手段とガタ防止手段はいずれも金属薄板を折曲加工するなどして容易に形成できるため、部品コストを抑制しやすく組立作業性も煩雑化しにくい。なお、第1突起部と第2突起部はいずれも環状カム部に対して係脱する際にクリック感を生成するので、回転操作時にユーザの手指にクリック感を感得させることもできる。   In the rotary operation type input device configured as described above, since the annular cam portion rotates integrally with the rotation operation of the operation member, the first and second protrusions are engaged with and disengaged from the annular cam portion. A click feeling will occur. At this time, as the first protrusion is driven by the convex portion of the annular cam portion and the leaf spring portion is pushed and bent, the outer edge of the leaf spring portion and the base opposite to the edge on the upstream side in the rotation direction of the operation member. Because the clearance between the wall and the inner wall of the base increases, when the first protrusion climbs over the convex part of the annular cam part, the outer edge of the leaf spring part hits the wall surface vigorously due to the elastic restoring force of the leaf spring part. Generate sound. Therefore, a collision sound can be continuously heard at a predetermined angular pitch during the rotation operation of the operation member, and a light operation sound that can grasp the amount of rotation operation can be generated. In addition, when the operation member is not operated, the second protrusion that is fitted in the recess of the annular cam portion prevents the annular cam portion from freely rotating, so that undesirable rotation backlash does not occur in the operation member. . In addition, since both the operation sound generating means and the backlash preventing means can be easily formed by bending a metal thin plate or the like, the parts cost can be easily suppressed and the assembling workability is not easily complicated. In addition, since both the 1st projection part and the 2nd projection part generate | occur | produce a click feeling when engaging / disengaging with respect to an annular cam part, a user's finger | toe can also be made to feel a click feeling at the time of rotation operation.

上記の構成において、操作音発生手段が第1突起部を介して連続する一対の板ばね部を有し、これら各板ばね部の外縁端がそれぞれクリアランスを存して基台内の壁面と接離可能に対向させてあれば、操作部材を正逆いずれの方向へ回転操作した場合にも、操作部材の回転方向上流側で板ばね部の外縁端を基台内の壁面に衝突させることによって軽快な操作音を発生させることができる。   In the above configuration, the operation sound generating means has a pair of leaf spring portions continuous via the first protrusion, and the outer edge ends of the leaf spring portions are in contact with the wall surface in the base with clearance. If the operating member is rotated in either the forward or reverse direction, the outer edge of the leaf spring portion collides with the wall surface in the base on the upstream side in the rotational direction of the operating member, as long as they are opposed to each other. A light operation sound can be generated.

また、上記の構成において、操作音発生手段とガタ防止手段が環状カム部を径方向に挟んで相対向する位置関係に配設されていると、環状カム部に対して第1および第2突起部の反力をバランスよく作用させることができるため好ましい。   Further, in the above configuration, when the operation sound generating means and the backlash preventing means are disposed in a positional relationship facing each other with the annular cam portion sandwiched in the radial direction, the first and second protrusions with respect to the annular cam portion. This is preferable because the reaction force of the portion can be applied in a balanced manner.

また、上記の構成において、操作音発生手段が一対の平板状の板ばね部の中央部に第1突起部を設けてなる一枚板の金属薄板からなり、この金属薄板の長手方向の両端近傍部が基台に支持されていると、操作部材の回転操作時に板ばね部を弾性変形させやすくて構造も簡素な操作音発生手段が安価に実現できるため好ましい。   Further, in the above configuration, the operation sound generating means is composed of a single sheet metal plate in which the first protrusion is provided at the center of the pair of flat plate spring portions, and in the vicinity of both ends of the metal sheet in the longitudinal direction. It is preferable that the portion is supported by the base because an operation sound generating means that can easily elastically deform the leaf spring portion and has a simple structure can be realized at a low cost when the operation member is rotated.

また、上記の構成において、ガタ防止手段が一対の第2板ばね部の中央部に第2突起部が設けられた一枚板の金属薄板からなり、この金属薄板の長手方向の両端部が基台に掛止されていると、操作部材の非操作時に第2突起部によって環状カム部の自由な回転を阻止できて構造も簡素なガタ防止手段が安価に実現できるため好ましい。   Further, in the above configuration, the backlash preventing means is formed of a single sheet metal plate in which the second protrusion is provided at the center of the pair of second leaf springs, and both ends in the longitudinal direction of the sheet metal are based on the two ends. When the operating member is not operated, it is preferable that the ring-shaped cam portion can be prevented from freely rotating by the second projecting portion when the operating member is not operated.

本発明の回転操作型入力装置によれば、操作部材の回転操作時に第1突起部が環状カム部の凸部に駆動されて板ばね部が押し撓められるのに伴い、回転方向上流側で板ばね部の外縁端とこれに対向する基台内の壁面との間のクリアランスが広がっていくため、第1突起部が凸部を乗り越えると、板ばね部の弾性復帰力でその外縁端が壁面に勢いよくぶつかって短い衝突音を発生する。それゆえ、操作部材の回転操作時に所定の角度ピッチで衝突音が連続的に聞こえることになり、回転操作量を把握できる軽快な操作音を発生させることができる。また、操作部材の非操作時には、環状カム部の凹部に嵌入している第2突起部によって環状カム部の自由な回転が阻止されているため、操作部材に不所望な回転ガタ(遊び)が発生しなくなる。しかも、操作音発生手段とガタ防止手段はいずれも金属薄板を折曲加工するなどして容易に形成できるため、部品コストを抑制しやすく組立作業性も煩雑化しにくくなり、回転操作型入力装置の高コスト化を抑制することができる。   According to the rotary operation type input device of the present invention, when the operating member is rotated, the first protrusion is driven by the convex portion of the annular cam portion, and the leaf spring portion is pushed and bent. Since the clearance between the outer edge of the leaf spring part and the wall surface in the base opposite to this increases, the outer edge of the outer edge of the leaf spring part is moved by the elastic return force of the leaf spring part when the first projection part gets over the convex part. It strikes the wall vigorously and generates a short collision sound. Therefore, a collision sound can be continuously heard at a predetermined angular pitch during the rotation operation of the operation member, and a light operation sound that can grasp the amount of rotation operation can be generated. Further, when the operation member is not operated, the second protrusion that is fitted in the recess of the annular cam portion prevents the annular cam portion from freely rotating. No longer occurs. Moreover, since both the operation sound generating means and the backlash preventing means can be easily formed by bending a metal thin plate, etc., it is possible to reduce the cost of parts and to make the assembly workability difficult, and the rotation operation type input device High cost can be suppressed.

本発明の実施形態例に係る回転操作型入力装置の横断面図である。It is a cross-sectional view of a rotary operation type input device according to an embodiment of the present invention. 図1のA−A線に沿う縦断面図である。It is a longitudinal cross-sectional view which follows the AA line of FIG. 本発明の変形例を示す要部断面図である。It is principal part sectional drawing which shows the modification of this invention.

以下、本発明の実施形態例について図面を参照しつつ説明する。図1と図2に示すように、本実施形態例に係る回転操作型入力装置20は、回転軸2の先端に固着された操作部材1と、操作部材1を回転可能に軸支する箱状の基台3と、基台3の内部で回転軸2に固着された回転体4と、回転体4の外周面に設けられた環状カム部5と、操作音発生手段である第1の弾性部材6と、ガタ防止手段である第2の弾性部材7と、基台3の内部で回転軸2に固着されたコード板8と、コード板8の回転位置変化を検出するフォトインタラプタ9とによって主に構成されている。   Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the rotary operation type input device 20 according to the present embodiment includes an operation member 1 fixed to the tip of the rotary shaft 2 and a box shape that rotatably supports the operation member 1. The base 3, the rotating body 4 fixed to the rotating shaft 2 inside the base 3, the annular cam portion 5 provided on the outer peripheral surface of the rotating body 4, and the first elasticity as the operation sound generating means. The member 6, the second elastic member 7 which is a backlash preventing means, the code plate 8 fixed to the rotating shaft 2 inside the base 3, and the photo interrupter 9 which detects the rotational position change of the code plate 8 It is mainly composed.

この回転操作型入力装置20は、操作部材1がユーザによって正逆両方向へ回転操作できるようになっており、回転操作時には回転軸2を中心に操作部材1と回転体4とコード板8とが一体的に回転する。また、回転体4の外周部をなす環状カム部5には凹部5aと凸部5bが周方向に交互に連設されている。なお、図1において、凹部5aと凸部5bを簡略化して45度間隔で図示しているが、実際には多数の凹部5aと凸部5bが小さな角度ピッチで連設されている。   The rotary operation type input device 20 is configured so that the operation member 1 can be rotated in both forward and reverse directions by the user. The operation member 1, the rotating body 4, and the code plate 8 are centered around the rotation shaft 2 during rotation operation. Rotates integrally. The annular cam portion 5 that forms the outer peripheral portion of the rotating body 4 is provided with concave portions 5a and convex portions 5b alternately arranged in the circumferential direction. In FIG. 1, the recesses 5a and the projections 5b are simplified and shown at 45 ° intervals, but in actuality, a large number of the recesses 5a and the projections 5b are connected at a small angular pitch.

第1の弾性部材6は一対の平板状の板ばね部6bの中央部に第1突起部6aを設けてなる一枚板の弾力性に富む金属薄板からなり、この第1の弾性部材6の長手方向の両端近傍部、つまり各板ばね部6bの外縁端6cの近傍部は基台3の内部に設けられたばね受け面3aに支持されている。また、各板ばね部6bの外縁端6cはそれぞれクリアランスCを存して基台3内の壁面3bと接離可能に対向しており、第1突起部6aは各板ばね部6bに弾性付勢されて環状カム部5に弾接している。そして、操作部材1に回転操作力が付与されて環状カム部5が回転するのに伴い、凹部5a内の第1突起部6aが凸部5bに駆動されて板ばね部6bが押し撓められた後、この板ばね部6bの弾性復帰力で第1突起部6aが隣の凹部5a内へ嵌入するという係脱動作が行われるようになっている。また、後述するように、操作部材1の回転操作に伴って第1突起部6aが凸部5bを乗り越えたときに、操作部材1の回転方向上流側で外縁端6cが壁面3bに衝突するようになっている。   The first elastic member 6 is made of a single-plate elastic metal plate having a first protrusion 6a provided at the center of a pair of flat plate spring portions 6b. The vicinity of both ends in the longitudinal direction, that is, the vicinity of the outer edge 6 c of each leaf spring portion 6 b is supported by a spring receiving surface 3 a provided inside the base 3. Further, the outer edge 6c of each leaf spring portion 6b is opposed to the wall surface 3b in the base 3 with clearance C therebetween, and the first protrusion 6a is elastically attached to each leaf spring portion 6b. It is urged to elastically contact the annular cam portion 5. Then, as the rotary operating force is applied to the operating member 1 and the annular cam portion 5 rotates, the first protrusion 6a in the recess 5a is driven by the protrusion 5b, and the leaf spring portion 6b is pushed and deflected. After that, an engaging / disengaging operation is performed in which the first protrusion 6a is fitted into the adjacent recess 5a by the elastic restoring force of the leaf spring 6b. Further, as will be described later, when the first protrusion 6a gets over the convex portion 5b as the operation member 1 is rotated, the outer edge 6c collides with the wall surface 3b on the upstream side in the rotation direction of the operation member 1. It has become.

第2の弾性部材7は長手方向の中央部に第2突起部7aを設けて両端部を係着部7bとなした一枚板の弾力性に富む金属薄板からなり、各係着部7bと第2突起部7aとの間には平板状の第2板ばね部7cが延在している。各係着部7bはU字状に折り返されており、これら一対の係着部7bはそれぞれ基台3の内部に設けられた支持ボス3cに掛止されている。また、第2突起部7aは各第2板ばね部7cに弾性付勢されて環状カム部5に弾接している。そして、操作部材1に回転操作力が付与されて環状カム部5が回転するのに伴い、凹部5a内の第2突起部7aが凸部5bに駆動されて第2板ばね部7cが押し撓められた後、この第2板ばね部7cの弾性復帰力で第2突起部7aが隣の凹部5a内へ嵌入するという係脱動作が行われるようになっている。なお、この第2突起部7aは、第1突起部6aよりも回転方向のガタが小さく設定されている。また、第1の弾性部材6および第2の弾性部材7によって環状カム部5に弾接する弾性手段が構成されており、図1に示すように、これら第1の弾性部材6と第2の弾性部材7は環状カム部5を径方向に挟んで相対向する位置関係に配設されている。   The second elastic member 7 is made of a thin metal plate having a single plate having a second protrusion 7a at the center in the longitudinal direction and both ends thereof as engaging portions 7b, and each engaging portion 7b A flat plate-like second leaf spring portion 7c extends between the second protrusion 7a. Each engaging portion 7 b is folded in a U shape, and the pair of engaging portions 7 b are respectively hooked on support bosses 3 c provided inside the base 3. The second protrusions 7 a are elastically biased by the respective second leaf springs 7 c and elastically contact the annular cam portion 5. Then, as the rotating operation force is applied to the operation member 1 and the annular cam portion 5 rotates, the second protrusion 7a in the recess 5a is driven by the protrusion 5b, and the second leaf spring portion 7c is pushed and bent. After the engagement, the engaging and disengaging operation is performed such that the second protrusion 7a is fitted into the adjacent recess 5a by the elastic restoring force of the second leaf spring portion 7c. The second protrusion 7a is set to have a smaller backlash in the rotational direction than the first protrusion 6a. The first elastic member 6 and the second elastic member 7 constitute elastic means that elastically contacts the annular cam portion 5, and as shown in FIG. 1, the first elastic member 6 and the second elastic member 6 The members 7 are arranged in a positional relationship facing each other with the annular cam portion 5 sandwiched in the radial direction.

次に、本実施形態例に係る回転操作型入力装置20の動作について説明する。図1に示すように、操作部材1に回転操作力が付与されていない非操作状態では、環状カム部5の180度離れて位置する2つの凹部5a内の一方に第1突起部6aが嵌入して他方に第2突起部7aが嵌入している。第1突起部6aが設けられた第1の弾性部材6にはクリアランスCに相当する若干のスライド移動が許容されているため、凹部5a内に第1突起部6aのみが嵌入しているものと仮定すると、回転体4には回転ガタ(遊び)が生じてしまうことになる。しかるに、第2突起部7aが設けられた第2の弾性部材7の長手方向の両端部(係着部7b)は基台3の支持ボス3cに掛止されてほぼ固定状態に保たれているため、凹部5a内に嵌入している第2突起部7aは非操作時に回転体4(環状カム部5)の自由な回転を阻止するストッパとして機能する。   Next, the operation of the rotary operation type input device 20 according to the present embodiment will be described. As shown in FIG. 1, in a non-operation state in which no rotation operation force is applied to the operation member 1, the first protrusion 6 a is fitted into one of the two recesses 5 a positioned 180 degrees away from the annular cam portion 5. And the 2nd projection part 7a is inserted in the other. Since the first elastic member 6 provided with the first protrusion 6a is allowed to slide slightly corresponding to the clearance C, only the first protrusion 6a is fitted in the recess 5a. Assuming that the rotating body 4 has rotational play (play). However, both end portions (engagement portions 7b) in the longitudinal direction of the second elastic member 7 provided with the second projecting portions 7a are hooked on the support bosses 3c of the base 3 and are kept substantially fixed. Therefore, the second protrusion 7a fitted in the recess 5a functions as a stopper that prevents free rotation of the rotating body 4 (annular cam portion 5) when not operated.

また、ユーザが操作部材1を正逆いずれかの方向へ回転操作すると、操作部材1と同軸の回転体4が回転するため、環状カム部5が操作部材1と一体的に回転し、この環状カム部5に対して第1突起部6aおよび第2突起部7aが係脱する。その際、操作部材1の回転方向下流側において、板ばね部6bの外縁端6cがこれと対向する壁面3bに当接した状態で、第1突起部6aが環状カム部5の凸部5bに駆動されて板ばね部6bが押し撓められるのに伴い、操作部材1の回転方向上流側において、板ばね部6bの外縁端6cとこれに対向する基台3内の壁面3bとの間のクリアランスCが広がっていく。そして、第1突起部6aがこの凸部5bを乗り越えると、板ばね部6bの弾性復帰力によって回転方向上流側において、外縁端6cが壁面3bに勢いよくぶつかって「チッ」という短い衝突音を発生する。具体的には、回転体4が図1の時計回り(R方向)に回転したときには、同図右側の外縁端6c(R)が対向する壁面3b(R)に衝突し、逆に、回転体4が図1の反時計回りに回転したときには、同図左側の外縁端6c(L)が対向する壁面3b(L)に衝突する。このように通常の回転操作時に所定の角度ピッチで「チッ」という衝突音が連続的に聞こえるように設計されているため、この回転操作型入力装置20は、操作部材1の回転操作時に「チッチッチッ…」という軽快な操作音を回転操作量に応じて発生させることができる。   When the user rotates the operation member 1 in either the forward or reverse direction, the rotating body 4 coaxial with the operation member 1 rotates, so that the annular cam portion 5 rotates integrally with the operation member 1. The first protrusion 6 a and the second protrusion 7 a are engaged with and disengaged from the cam portion 5. At this time, on the downstream side in the rotation direction of the operation member 1, the first protrusion 6 a is brought into contact with the convex portion 5 b of the annular cam portion 5 in a state where the outer edge 6 c of the leaf spring portion 6 b is in contact with the wall surface 3 b facing this. As the leaf spring portion 6b is driven and deflected, on the upstream side in the rotational direction of the operation member 1, between the outer edge 6c of the leaf spring portion 6b and the wall surface 3b in the base 3 opposite thereto. Clearance C increases. When the first projecting portion 6a gets over the convex portion 5b, the outer edge 6c strikes the wall surface 3b vigorously on the upstream side in the rotational direction due to the elastic restoring force of the leaf spring portion 6b, and a short hit sound is heard. appear. Specifically, when the rotating body 4 rotates clockwise (R direction) in FIG. 1, the outer edge 6c (R) on the right side of the figure collides with the opposing wall surface 3b (R), and conversely, the rotating body When 4 rotates counterclockwise in FIG. 1, the outer edge 6c (L) on the left side of FIG. 1 collides with the opposing wall surface 3b (L). In this way, the rotary operation type input device 20 is designed to be “titch-tick” when the operation member 1 is rotated, because it is designed to continuously hear a “chipping” sound at a predetermined angular pitch during normal rotation operation. ... ”Can be generated according to the amount of rotation operation.

そして、かかる回転操作によって操作部材1と同軸のコード板8が回転するため、このコード板8の回転位置変化をフォトインタラプタ9が検出し、その検出信号が外部の制御回路へ出力される。これにより、操作部材1の回転操作位置に応じた制御が行えるようになっている。   Since the code plate 8 coaxial with the operation member 1 is rotated by the rotation operation, the photo interrupter 9 detects a change in the rotation position of the code plate 8, and the detection signal is output to an external control circuit. Thereby, control according to the rotation operation position of the operation member 1 can be performed.

また、操作部材1の回転操作に伴って第1突起部6aと第2突起部7aが環状カム部5に対して係脱するため、この回転操作型入力装置20は、両突起部6a,7aがほぼ同時にクリック感を生起し、このクリック感をユーザの手指に感得させることができる。ただし、第1突起部6aと第2突起部7aのいずれか一方だけが明瞭なクリック感を生起するように設定しておくことも可能である。また、第1突起部6aや第2突起部7aにグリースを塗布しておけば、環状カム部5に対する係脱動作が極めて円滑に行えるようになる。   Further, since the first projecting portion 6a and the second projecting portion 7a are engaged with and disengaged from the annular cam portion 5 as the operating member 1 is rotated, the rotational operation type input device 20 includes both projecting portions 6a and 7a. Can generate a click feeling almost simultaneously, and this user can feel the click feeling. However, it is also possible to set so that only one of the first protrusion 6a and the second protrusion 7a produces a clear click feeling. Further, if grease is applied to the first protrusion 6a and the second protrusion 7a, the engagement / disengagement operation with respect to the annular cam portion 5 can be performed very smoothly.

以上説明したように本実施形態例に係る回転操作型入力装置20は、操作部材1の回転操作時に第1の弾性部材6の回転方向上流側において、板ばね部6bの外縁端6cが対向する壁面3bに衝突して耳障りでない短い衝突音を発生するようにしてある。そのため、所定の角度ピッチでかかる衝突音が連続的に聞こえることになり、回転操作量を把握できる軽快な操作音を発生する回転操作型入力装置となっている。また、操作部材1の非操作状態では、第2の弾性部材7の第2突起部7aがストッパとして機能するため環状カム部5の自由な回転は阻止されており、よって操作部材1に不所望な回転ガタ(遊び)が発生する虞はない。しかも、第1の弾性部材6と第2の弾性部材7はいずれも金属薄板を折曲加工するなどして容易に形成できるため、部品コストを抑えることができて組立作業性も良好である。それゆえ、この回転操作型入力装置20は安価に製造することができる。   As described above, in the rotary operation type input device 20 according to this embodiment, the outer edge 6c of the leaf spring portion 6b faces the upstream side in the rotation direction of the first elastic member 6 when the operation member 1 is rotated. It collides with the wall surface 3b and generates a short collision sound that is not harsh. Therefore, the collision sound can be heard continuously at a predetermined angular pitch, and the rotary operation type input device generates a light operation sound that can grasp the amount of rotation operation. Further, when the operation member 1 is not operated, the second protrusion 7a of the second elastic member 7 functions as a stopper, so that the free rotation of the annular cam portion 5 is prevented. There is no risk of erratic rotation play (play). In addition, since both the first elastic member 6 and the second elastic member 7 can be easily formed by bending a metal thin plate or the like, the component cost can be suppressed and the assembling workability is also good. Therefore, this rotary operation type input device 20 can be manufactured at low cost.

また、本実施形態例に係る回転操作型入力装置20では、操作音発生手段である第1の弾性部材6とガタ防止手段である第2の弾性部材7とが環状カム部5を径方向に挟んで相対向する位置関係に配設されているため、環状カム部5に対して第1および第2突起部6a,7aの反力をバランスよく作用させることができる。つまり、第1突起部6aの反力と第2突起部7aの反力は回転体4を直径方向に挟み込むように作用するため、これら反力を合成した力は回転体4や回転軸2を偏心させるような外力とはなりにくく、それゆえ常に安定した回転操作が行えることになる。   Further, in the rotary operation type input device 20 according to the present embodiment example, the first elastic member 6 as the operation sound generating means and the second elastic member 7 as the backlash preventing means cause the annular cam portion 5 to extend in the radial direction. Since they are disposed so as to face each other with the sandwiching therebetween, the reaction forces of the first and second protrusions 6a and 7a can be applied to the annular cam portion 5 in a balanced manner. That is, the reaction force of the first protrusion 6a and the reaction force of the second protrusion 7a act so as to sandwich the rotating body 4 in the diametrical direction. It is difficult for the external force to be decentered, and therefore a stable rotation operation can always be performed.

なお、本実施形態例に係る回転操作型入力装置20では、操作音発生手段である第1の弾性部材6が第1突起部6aを介して連続する一対の板ばね部6bを有しており、各板ばね部6bの外縁端6cがそれぞれクリアランスCを存して基台3内の壁面3bと接離可能に対向させてある。そのため、操作部材1を正逆いずれの方向へ回転操作した場合にも、回転方向上流側において板ばね部6bの外縁端6cが対向する壁面3bに衝突して軽快な操作音が発生するようになっている。ただし、本発明はこれに限定されるものではなく、例えば、第1の弾性部材6の長手方向の一端側と他端側でクリアランスCの寸法や壁面3bの形状等が大きく異なる構成にしておくことによって、操作部材1をいずれか一方向へ回転操作したときだけ軽快な操作音を発生する回転操作型入力装置や、操作部材1の回転操作方向に応じて異なる操作音を発生する回転操作型入力装置などが容易に実現できる。   In the rotary operation type input device 20 according to the present embodiment example, the first elastic member 6 that is an operation sound generating means has a pair of leaf spring portions 6b that are continuous via the first protrusions 6a. The outer edge 6c of each leaf spring portion 6b is opposed to the wall surface 3b in the base 3 so as to be able to come into contact with and separate from each other with clearance C therebetween. Therefore, even when the operation member 1 is rotated in either the forward or reverse direction, the outer edge 6c of the leaf spring portion 6b collides with the opposing wall surface 3b on the upstream side in the rotation direction so that a light operation sound is generated. It has become. However, the present invention is not limited to this. For example, the first elastic member 6 has a configuration in which the dimension of the clearance C, the shape of the wall surface 3b, and the like are greatly different between one end side and the other end side in the longitudinal direction. Accordingly, a rotary operation type input device that generates a light operation sound only when the operation member 1 is rotated in any one direction, or a rotary operation type that generates a different operation sound depending on the rotation operation direction of the operation member 1. An input device can be easily realized.

また、上記の実施形態例では、操作音発生手段とガタ防止手段がいずれも一枚板の金属薄板からなる場合について説明したが、本発明は必ずしもこれに限定されるものではない。例えば、図3に示す変形例のように、合成樹脂製の第1突起部10をインサート成形などによって一対の平板状の板ばね11に固着させたものを操作音発生手段として使用した場合にも、回転操作時に板ばね11の外縁端11aを基台3内の壁面3bに衝突させて軽快な操作音を発生させることができる。また、同図に示すように、第2突起部12にコイルばね13を組み合わせたものをガタ防止手段として使用してもよい。   In the above embodiment, the case where the operation sound generating means and the backlash preventing means are both made of a single metal thin plate has been described. However, the present invention is not necessarily limited to this. For example, as in the modification shown in FIG. 3, when a synthetic resin first protrusion 10 fixed to a pair of flat plate springs 11 by insert molding or the like is used as an operation sound generating means. When rotating, the outer edge 11a of the leaf spring 11 can collide with the wall surface 3b in the base 3 to generate a light operation sound. Further, as shown in the figure, a combination of the second protrusion 12 and a coil spring 13 may be used as a backlash prevention means.

1 操作部材
2 回転軸
3 基台
3a ばね受け面
3b 壁面
3c 支持ボス
4 回転体
5 環状カム部
5a 凹部
5b 凸部
6 第1の弾性部材(操作音発生手段)
6a 第1突起部
6b 板ばね部
6c 外縁端
7 第2の弾性部材(ガタ防止手段)
7a 第2突起部
7b 係着部
7c 第2板ばね部
8 コード板
9 フォトインタラプタ
10 第1突起部
11 板ばね(板ばね部)
11a 外縁端
12 第2突起部
13 コイルばね
20 回転操作型入力装置
C クリアランス
DESCRIPTION OF SYMBOLS 1 Operation member 2 Rotating shaft 3 Base 3a Spring receiving surface 3b Wall surface 3c Support boss 4 Rotating body 5 Annular cam part 5a Concave part 5b Convex part 6 First elastic member (operation sound generating means)
6a First protrusion 6b Leaf spring 6c Outer edge 7 Second elastic member (rattle prevention means)
7a 2nd projection part 7b engaging part 7c 2nd leaf spring part 8 code board 9 photo interrupter 10 1st projection part 11 leaf spring (leaf spring part)
11a Outer edge 12 Second projection 13 Coil spring 20 Rotation operation type input device C Clearance

Claims (5)

基台と、この基台に回転可能に支持された操作部材と、この操作部材と一体的に回転して周方向に凹部と凸部が交互に連設された環状カム部と、この環状カム部に弾接する弾性手段とを備え、前記操作部材の回転操作時に前記環状カム部と前記弾性手段との協働によりクリック感触が生起される回転操作型入力装置であって、
前記弾性手段が前記基台に組み込まれた操作音発生手段とガタ防止手段とからなり、前記操作音発生手段が、前記環状カム部に対して係脱可能な第1突起部と、この第1突起部を前記環状カム部に向けて弾性付勢する板ばね部とを有すると共に、前記ガタ防止手段が前記環状カム部に対して係脱可能に弾性付勢された第2突起部を有し、
前記板ばね部の外縁端をクリアランスを存して前記基台内の壁面と接離可能に対向させることにより、前記操作部材の回転操作に伴って前記第1突起部が前記凸部を乗り越えたときに前記板ばね部の外縁端が前記壁面に衝突するようになし、かつ、前記操作部材の非操作時に前記第1突起部よりも回転方向のガタが小さく設定された前記第2突起部が前記環状カム部の回転を規制するように構成したことを特徴とする回転操作型入力装置。
A base, an operation member rotatably supported by the base, an annular cam portion that rotates integrally with the operation member, and in which recesses and projections are alternately provided in the circumferential direction; and the annular cam A rotary operation type input device that includes an elastic means that elastically contacts a portion, and a click feeling is generated by the cooperation of the annular cam portion and the elastic means when the operation member is rotated.
The elastic means is composed of an operation sound generating means incorporated in the base and a play preventing means, and the operation sound generating means has a first projection part that can be engaged with and disengaged from the annular cam part, and the first projection part. And a leaf spring portion that elastically urges the protruding portion toward the annular cam portion, and the backlash preventing means includes a second protrusion portion that is elastically urged so as to be detachable from the annular cam portion. ,
By causing the outer edge of the leaf spring portion to face and separate from the wall surface in the base with a clearance, the first projection portion has overcome the convex portion as the operation member rotates. The outer edge of the leaf spring part sometimes collides with the wall surface, and the second protrusion part, in which the backlash in the rotational direction is set smaller than the first protrusion part when the operation member is not operated, A rotary operation type input device configured to restrict the rotation of the annular cam portion.
請求項1の記載において、前記操作音発生手段が前記第1突起部を介して連続する一対の前記板ばね部を有し、これら各板ばね部の外縁端がそれぞれクリアランスを存して前記基台内の壁面と接離可能に対向させてあることを特徴とする回転操作型入力装置。   2. The operation sound generating means according to claim 1, wherein the operating sound generating means has a pair of leaf spring portions that are continuous via the first protrusion, and the outer edge ends of the leaf spring portions have clearances, respectively. A rotary operation type input device, wherein the rotary operation type input device is opposed to a wall surface in a table so as to be able to contact and separate. 請求項1または2の記載において、前記操作音発生手段と前記ガタ防止手段とが前記環状カム部を径方向に挟んで相対向する位置関係に配設されていることを特徴とする回転操作型入力装置。   3. A rotary operation type according to claim 1, wherein said operation sound generating means and said backlash preventing means are disposed in a positional relationship facing each other with said annular cam portion sandwiched in a radial direction. Input device. 請求項1〜3のいずれか1項の記載において、前記操作音発生手段が一対の平板状の前記板ばね部の中央部に前記第1突起部を設けてなる一枚板の金属薄板からなり、この金属薄板の長手方向の両端近傍部が前記基台に支持されていることを特徴とする回転操作型入力装置。   4. The method according to claim 1, wherein the operation sound generating means is formed of a single sheet metal plate in which the first protrusion is provided at the center of a pair of flat plate-like plate springs. The rotary operation type input device is characterized in that the vicinity of both ends in the longitudinal direction of the thin metal plate is supported by the base. 請求項1〜4のいずれか1項の記載において、前記ガタ防止手段が一対の第2板ばね部の中央部に前記第2突起部が設けられた一枚板の金属薄板からなり、この金属薄板の長手方向の両端部が前記基台に掛止されていることを特徴とする回転操作型入力装置。   5. The backlash prevention means according to claim 1, wherein the backlash preventing means is formed of a single sheet metal thin plate in which the second protrusion is provided at the center of a pair of second leaf springs. A rotary operation type input device characterized in that both ends of the thin plate in the longitudinal direction are hooked on the base.
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Cited By (6)

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CN102537283A (en) * 2012-01-18 2012-07-04 哈尔滨建成集团有限公司 Non-return device for cam
KR101367207B1 (en) 2013-02-07 2014-02-26 주식회사 이너트론 Rotary step attenuator
JP2015173016A (en) * 2014-03-11 2015-10-01 アルプス電気株式会社 Rotary electronic component with click feeling
KR20160047203A (en) * 2014-10-22 2016-05-02 현대자동차주식회사 knob assembly e and controller for vehicle including the same
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537283A (en) * 2012-01-18 2012-07-04 哈尔滨建成集团有限公司 Non-return device for cam
KR101367207B1 (en) 2013-02-07 2014-02-26 주식회사 이너트론 Rotary step attenuator
JP2015173016A (en) * 2014-03-11 2015-10-01 アルプス電気株式会社 Rotary electronic component with click feeling
US10014135B2 (en) 2014-10-22 2018-07-03 Hyundai Motor Company Knob assembly and knob control system for vehicle including the same
KR101673332B1 (en) 2014-10-22 2016-11-07 현대자동차 주식회사 knob assembly e and controller for vehicle including the same
KR20160047203A (en) * 2014-10-22 2016-05-02 현대자동차주식회사 knob assembly e and controller for vehicle including the same
WO2017169625A1 (en) * 2016-03-30 2017-10-05 株式会社村田製作所 Rotary electronic component
CN108885956A (en) * 2016-03-30 2018-11-23 株式会社村田制作所 Rotary electric subassembly
JPWO2017169625A1 (en) * 2016-03-30 2019-02-07 株式会社村田製作所 Rotating electronic components
CN108885956B (en) * 2016-03-30 2020-03-24 株式会社村田制作所 Rotary electronic component
US10707035B2 (en) 2016-03-30 2020-07-07 Murata Manufacturing Co., Ltd. Rotary electronic component
JP2023504108A (en) * 2019-11-28 2023-02-01 天臣国▲際▼医▲療▼科技股▲フン▼有限公司 Swing head mechanism and medical stapler
JP7369296B2 (en) 2019-11-28 2023-10-25 天臣国▲際▼医▲療▼科技股▲フン▼有限公司 Swing head mechanism and medical stapler
US12048432B2 (en) 2019-11-28 2024-07-30 Touchstone International Medical Science Co., Ltd. Rotating mechanism and surgical stapler

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