JP6858078B2 - Rotation transmission mechanism and damper device - Google Patents

Rotation transmission mechanism and damper device Download PDF

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JP6858078B2
JP6858078B2 JP2017104123A JP2017104123A JP6858078B2 JP 6858078 B2 JP6858078 B2 JP 6858078B2 JP 2017104123 A JP2017104123 A JP 2017104123A JP 2017104123 A JP2017104123 A JP 2017104123A JP 6858078 B2 JP6858078 B2 JP 6858078B2
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vehicle
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JP2018100769A (en
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悟 横江
悟 横江
岳彦 矢澤
岳彦 矢澤
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Nidec Sankyo Corp
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Description

本発明は、駆動車の回転を従動車に伝達する回転伝達機構およびダンパ装置に関する。 The present invention relates to a rotation transmission mechanism and a damper device that transmit the rotation of a driving vehicle to a driven vehicle.

冷蔵庫の冷気通路等に用いられるダンパ装置は、例えば、モータおよび輪列を備えたバッフル駆動機構によってバッフルを駆動してフレームに形成された開口部を開閉する（特許文献１）。かかるダンパ装置においては、モータによってバッフルを開方向に駆動する一方、モータを逆回転させてバッフルを閉方向に駆動する（特許文献１参照）。 A damper device used for a cold air passage of a refrigerator or the like drives a baffle by, for example, a baffle drive mechanism including a motor and a train wheel to open and close an opening formed in a frame (Patent Document 1). In such a damper device, the baffle is driven in the opening direction by the motor, while the motor is rotated in the reverse direction to drive the baffle in the closing direction (see Patent Document 1).

特開平１０−３０６９７０号公報Japanese Unexamined Patent Publication No. 10-306970

特許文献１に記載のダンパ装置等において、モータを双方向に回転させる場合、制御回路や駆動回路が複雑になるため、コストが増大してしまう。 In the damper device or the like described in Patent Document 1, when the motor is rotated in both directions, the control circuit and the drive circuit become complicated, so that the cost increases.

以上の問題点に鑑みて、本発明の課題は、駆動車の一方方向の回転によって従動車を双方向に回転させることのできる回転伝達機構およびダンパ装置を提供することにある。 In view of the above problems, an object of the present invention is to provide a rotation transmission mechanism and a damper device capable of rotating a driven vehicle in both directions by rotating the driving vehicle in one direction.

上記課題を解決するために、本発明に係る回転伝達機構は、第１軸線周りの一方側に回転する駆動車と、前記駆動車によって前記第１軸線と平行な第２軸線周りの一方側に回転駆動される従動車と、前記従動車を前記第２軸線周りの他方側に付勢する付勢部材と、
を有し、前記駆動車には、前記従動車を前記第２軸線周りの一方側に回転駆動する複数の駆動歯が周方向に配置された駆動歯形成部と、前記従動車が前記付勢部材による付勢力によって前記第２軸線周りの他方側に回転する際に前記従動車が摺動するカム面形成部と、が周方向で隣り合うように設けられ、前記従動車には、前記駆動車が前記第１軸線周りの一方側に回転した際に前記駆動歯が順に当接する複数の従動歯が一部の角度範囲に配置された従動歯形成部が設けられ、前記複数の駆動歯は各々、前記第１軸線方向の異なる位置に設けられ、前記複数の従動歯は各々、前記第２軸線方向の異なる位置に設けられていることを特徴とする。 In order to solve the above problems, the rotation transmission mechanism according to the present invention has a drive vehicle that rotates on one side around the first axis and one side around the second axis that is parallel to the first axis by the drive vehicle. A driven vehicle that is rotationally driven, and an urging member that urges the driven vehicle to the other side around the second axis.
The drive vehicle has a drive tooth forming portion in which a plurality of drive teeth for rotationally driving the driven vehicle on one side around the second axis are arranged in the circumferential direction, and the driven vehicle urges the driven vehicle. A cam surface forming portion on which the driven vehicle slides when rotating to the other side around the second axis by the urging force of the member is provided so as to be adjacent to each other in the circumferential direction. When the vehicle rotates to one side around the first axis, a driven tooth forming portion is provided in which a plurality of driven teeth that the driving teeth come into contact with in order are arranged in a part of an angle range, and the plurality of driving teeth are provided. Each is provided at a different position in the first axis direction, and each of the plurality of driven teeth is provided at a different position in the second axis direction.

本発明において、駆動車が第１軸線周りの一方側に回転すると、駆動歯が従動歯を介して従動車を第２軸線周りの一方側に駆動し、その後、駆動歯と従動歯との噛み合いが解除されると、従動車は、付勢部材の付勢力によって第２軸線周りの他方側に回転する。その際、従動車は、駆動車に設けられたカム面形成部を摺動する。従って、駆動車の第１軸線周りの一方側のみに回転させる場合でも、従動車を第２軸線周りの一方側に回転駆動することができるとともに、従動車を第２軸線周りの他方側に回転させることができる。それ故、モータの制御回路等の構成を簡素化することができる。また、従動車を第２軸線周りの他方側に回転させる際には、付勢部材の付勢力を利用するが、その際には、従動車が駆動車のカム面形成部を摺動するため、従動車が第２軸線周りの他方側に回転する際の速度等を制御することができる。さらに、複数の駆動歯および複数の従動歯が各々、軸線方向で異なる位置に設けられているため、予定通りの組み合わせで駆動歯と従動歯とを噛み合わせることができる。それ故、従動車の角度位置を適正に制御することができる。 In the present invention, when the driving vehicle rotates to one side around the first axis, the driving teeth drive the driven vehicle to one side around the second axis via the driven teeth, and then the driving teeth and the driven teeth mesh with each other. When is released, the driven vehicle rotates to the other side around the second axis by the urging force of the urging member. At that time, the driven vehicle slides on the cam surface forming portion provided on the driving vehicle. Therefore, even when the driven vehicle is rotated only on one side around the first axis, the driven vehicle can be rotationally driven to one side around the second axis and the driven vehicle is rotated to the other side around the second axis. Can be made to. Therefore, the configuration of the motor control circuit and the like can be simplified. Further, when rotating the driven vehicle to the other side around the second axis, the urging force of the urging member is used, but at that time, the driven vehicle slides on the cam surface forming portion of the driving vehicle. , The speed at which the driven vehicle rotates to the other side around the second axis can be controlled. Further, since the plurality of driving teeth and the plurality of driven teeth are provided at different positions in the axial direction, the driving teeth and the driven teeth can be meshed with each other in a predetermined combination. Therefore, the angular position of the driven vehicle can be appropriately controlled.

本発明において、前記カム面形成部には、前記従動車が前記付勢部材による付勢力によって前記第２軸線周りの他方側に回転する際に前記複数の従動歯が順に摺動する複数のカム面が前記第１軸線方向の異なる位置に設けられている態様を採用することができる。かかる態様によれば、付勢部材の付勢力によって従動車を第２軸線周りの他方側に回転させる際、複数の従動歯が複数のカム面に順に摺動するので、付勢部材による付勢力によって従動車を第２軸線周りの他方側に回転させる際、広い角度範囲にわたって、従動車の回転速度等を制御することができる。 In the present invention, the cam surface forming portion includes a plurality of cams on which the plurality of driven teeth slide in order when the driven vehicle rotates to the other side around the second axis by the urging force of the urging member. A mode in which the surfaces are provided at different positions in the first axis direction can be adopted. According to this aspect, when the driven vehicle is rotated to the other side around the second axis by the urging force of the urging member, the plurality of driven teeth slide in order on the plurality of cam surfaces, so that the urging force of the urging member When the driven vehicle is rotated to the other side around the second axis, the rotation speed of the driven vehicle can be controlled over a wide angle range.

本発明において、前記複数のカム面は、前記第１軸線周りの一方側から他方側に向かって外径が縮小している態様を採用することができる。かかる態様によれば、複数の従動歯をスムーズに複数のカム面に順に摺動させることができる。 In the present invention, it is possible to adopt a mode in which the outer diameter of the plurality of cam surfaces is reduced from one side around the first axis toward the other side. According to this aspect, the plurality of driven teeth can be smoothly slid on the plurality of cam surfaces in order.

本発明において、前記駆動歯形成部では、前記第１軸線方向の各位置に前記駆動歯が１つずつ設けられ、前記従動歯形成部では、前記第２軸線方向の各位置に前記従動歯が１つずつ設けられている態様を採用することができる。かかる構成によれば、予定通りの組み合わせで駆動歯と従動歯とを噛み合わせることができるので、従動車の角度位置を適正に制御することができる。 In the present invention, in the driving tooth forming portion, one driving tooth is provided at each position in the first axis direction, and in the driven tooth forming portion, the driven tooth is provided at each position in the second axis direction. A mode provided one by one can be adopted. According to such a configuration, since the driving teeth and the driven teeth can be meshed with each other as planned, the angular position of the driven vehicle can be appropriately controlled.

本発明において、前記複数の従動歯が前記複数のカム面に対して順に摺動する各区間の間では、現区間の従動歯がカム面に接しているうちに、次区間の従動歯がカム面に接し始める態様を採用することができる。かかる態様によれば、複数の従動歯をスムーズに複数のカム面に順に摺動させることができるので、従動歯とカム面とが摺動する組み合わせが切り換わる際に従動車が急速に回転する等の事態が発生しにくい。 In the present invention, between the sections in which the plurality of driven teeth slide in order with respect to the plurality of cam surfaces, the driven teeth in the next section cam while the driven teeth in the current section are in contact with the cam surface. A mode in which the contact with the surface is started can be adopted. According to this aspect, since the plurality of driven teeth can be smoothly slid to the plurality of cam surfaces in order, the driven vehicle rotates rapidly when the combination in which the driven teeth and the cam surface slide is switched. Etc. are unlikely to occur.

本発明において、前記複数の駆動歯では、前記第１軸線方向の一方側に位置する駆動歯が前記第１軸線方向の他方側に位置する駆動歯より前記第１軸線周りの他方側に位置し、前記複数の従動歯では、前記第２軸線方向の一方側に位置する従動歯が前記第２軸線方向の他方側に位置する従動歯より前記第２軸線周りの他方側に位置し、前記複数のカム面では、前記第１軸線方向の一方側に位置するカム面が前記第１軸線方向の他方側に位置するカム面より前記第１軸線周りの一方側に位置している態様を採用することができる。かかる態様によれば、複数の駆動歯、複数の従動歯、および複数のカム面を階段状に形成することができるので、駆動歯および従動車の製作が容易である。また、駆動車と従動車との位置関係等が軸線方向でずれても、駆動歯が予定外の従動車に当接する等の事態が発生しにくい。 In the present invention, in the plurality of drive teeth, the drive tooth located on one side in the first axis direction is located on the other side around the first axis with respect to the drive tooth located on the other side in the first axis direction. In the plurality of driven teeth, the driven tooth located on one side in the second axis direction is located on the other side around the second axis with respect to the driven tooth located on the other side in the second axis direction. In the cam surface, the cam surface located on one side in the first axis direction is located on one side around the first axis with respect to the cam surface located on the other side in the first axis direction. be able to. According to such an embodiment, a plurality of driving teeth, a plurality of driven teeth, and a plurality of cam surfaces can be formed in a stepped manner, so that the driving teeth and the driven vehicle can be easily manufactured. Further, even if the positional relationship between the driving vehicle and the driven vehicle deviates in the axial direction, it is unlikely that the driving teeth come into contact with the driven vehicle that is not planned.

本発明において、前記複数の駆動歯は、前記第１軸線周りの一方側の面が歯面となっており、前記駆動車は、前記第１軸線周りの最も他方側に位置する最終駆動歯の歯面に対して周方向に隣り合う位置に形成された第１段部を備え、前記第１段部は、前記最終駆動歯の歯面の径方向外側の端部と交差する外周面を備える態様を採用することができる。あるいは、本発明において、前記複数の駆動歯は、前記第１軸線周りの一方側の面が歯面となっており、前記駆動車は、前記第１軸線周りの最も他方側に位置する最終駆動歯の歯面に対して周方向に隣り合う位置に形成された第１凹部を備え、前記第１凹部は、前記最終駆動歯の歯面の径方向外側の端部と交差する内周面を備える態様を採用することができる。かかる態様によれば、最終駆動歯の歯面と第１段部の外周面との交点、あるいは、最終駆動歯の歯面と第１凹部の内周面との交点を計測できる。従って、駆動歯の歯先の位置を正確に計測できるため、駆動歯のピッチを正確に計測できる。 In the present invention, the plurality of driving teeth have a tooth surface on one side around the first axis, and the driving vehicle is a final driving tooth located on the farthest side around the first axis. A first step portion formed at a position adjacent to the tooth surface in the circumferential direction is provided, and the first step portion includes an outer peripheral surface that intersects the radial outer end of the tooth surface of the final driving tooth. Aspects can be adopted. Alternatively, in the present invention, the plurality of drive teeth have a tooth surface on one side around the first axis, and the drive vehicle is the final drive located on the farthest side around the first axis. It is provided with a first recess formed at a position adjacent to the tooth surface in the circumferential direction, and the first recess is an inner peripheral surface that intersects the radial outer end of the tooth surface of the final driving tooth. A mode to be provided can be adopted. According to this aspect, it is possible to measure the intersection of the tooth surface of the final driving tooth and the outer peripheral surface of the first step portion, or the intersection of the tooth surface of the final driving tooth and the inner peripheral surface of the first recess. Therefore, since the position of the tip of the driving tooth can be accurately measured, the pitch of the driving tooth can be accurately measured.

本発明において、前記複数の従動歯は、前記第２軸線周りの他方側の面が歯面となっており、前記従動車は、前記第２軸線周りの最も一方側に位置する第１従動歯の歯面に対して周方向に隣り合う位置に形成された第２段部を備え、前記第２段部は、前記第１従動歯
の歯面の径方向外側の端部と交差する外周面を備える態様を採用することができる。あるいは、本発明において、前記複数の従動歯は、前記第２軸線周りの他方側の面が歯面となっており、前記従動車は、前記第２軸線周りの最も一方側に位置する第１従動歯の歯面に対して周方向に隣り合う位置に形成された第２凹部を備え、前記第２凹部は、前記第１従動歯の歯面の径方向外側の端部と交差する内周面を備える態様を採用することができる。かかる態様によれば、第１従動歯の歯面と第２段部の外周面との交点、あるいは、第１従動歯の歯面と第２凹部の内周面との交点を計測できる。従って、従動歯のピッチを正確に計測できる。 In the present invention, the plurality of driven teeth have a tooth surface on the other side around the second axis, and the driven vehicle is the first driven tooth located on the most one side around the second axis. The second step portion is provided at a position adjacent to the tooth surface in the circumferential direction, and the second step portion is an outer peripheral surface that intersects the radial outer end portion of the tooth surface of the first driven tooth. It is possible to adopt the embodiment provided with. Alternatively, in the present invention, the plurality of driven teeth have a tooth surface on the other side around the second axis, and the driven vehicle is located on the most one side around the second axis. A second recess is provided at a position adjacent to the tooth surface of the driven tooth in the circumferential direction, and the second recess is an inner circumference that intersects the radial outer end of the tooth surface of the first driven tooth. A mode having a surface can be adopted. According to this aspect, the intersection of the tooth surface of the first driven tooth and the outer peripheral surface of the second step portion, or the intersection of the tooth surface of the first driven tooth and the inner peripheral surface of the second recess can be measured. Therefore, the pitch of the driven tooth can be measured accurately.

本発明において、前記従動車は、前記第１従動歯より前記第２軸線方向の一方側に前記従動歯形成部を延長した延長部を備え、前記第２段部は、前記延長部に形成されている態様を採用することができる。かかる態様によれば、従動歯形成部に第２段部を形成可能な高さを確保することができる。 In the present invention, the driven vehicle includes an extension portion extending the driven tooth forming portion on one side in the second axis direction from the first driven tooth, and the second step portion is formed on the extension portion. Can be adopted. According to such an aspect, it is possible to secure a height at which the second step portion can be formed in the driven tooth forming portion.

本発明において、前記従動歯形成部には、前記駆動歯が当接しない最終従動歯が、前記複数の従動歯より前記第２軸線周りの一方側、かつ、前記複数の従動歯よりも前記第２軸線方向の他方側に設けられ、前記カム面形成部には、前記最終従動歯が当接する最終のカム面が設けられている態様を採用してもよい。 In the present invention, the final driven tooth that the driving tooth does not abut on the driven tooth forming portion is on one side of the plurality of driven teeth around the second axis, and is the third more than the plurality of driven teeth. A mode may be adopted in which the cam surface forming portion is provided on the other side in the two-axis direction and the final cam surface with which the final driven tooth comes into contact is provided.

本発明において、前記複数の従動歯の各ピッチが等しく、前記複数の従動歯のうち、前記第２軸線周りの最も一方側に位置する従動歯と前記最終従動歯とのピッチは、前記複数の従動歯のピッチより広い態様を採用することができる。かかる態様によれば、従動歯がカム面に摺動する状態から最終従動歯が最終のカム面に摺動する状態への切り替えをスムーズに行うことができるので、従動車が急速に回転する等の事態が発生しにくい。 In the present invention, the pitches of the plurality of driven teeth are equal, and among the plurality of driven teeth, the pitch of the driven tooth located on the most one side around the second axis and the final driven tooth is the plurality of. A mode wider than the pitch of the driven teeth can be adopted. According to this aspect, it is possible to smoothly switch from the state in which the driven tooth slides on the cam surface to the state in which the final driven tooth slides on the final cam surface, so that the driven vehicle rotates rapidly, etc. Is unlikely to occur.

本発明において、前記カム面および前記最終のカム面は、前記第１軸線周りの一方側から他方側に向かって外径が縮小しており、前記最終のカム面は、前記第１軸線周りの一方側に位置する部分の外径の周方向での減少率が前記複数のカム面より小さく、かつ、前記第１軸線周りの他方側に位置する部分の外径の周方向での減少率が前記複数のカム面より大きい態様を採用することができる。 In the present invention, the outer diameters of the cam surface and the final cam surface are reduced from one side around the first axis toward the other, and the final cam surface is around the first axis. The reduction rate of the outer diameter of the portion located on one side in the circumferential direction is smaller than that of the plurality of cam surfaces, and the reduction rate of the outer diameter of the portion located on the other side around the first axis is smaller than that of the plurality of cam surfaces. A mode larger than the plurality of cam surfaces can be adopted.

本発明において、前記複数のカム面はいずれも、前記第１軸線周りの一方側の端部が前記第１軸線周りの一方側で隣り合うカム面より径方向外側に位置する態様を採用することができる。 In the present invention, all of the plurality of cam surfaces adopt an embodiment in which one end around the first axis is located radially outside the adjacent cam surfaces on one side around the first axis. Can be done.

本発明において、前記複数のカム面には、前記第１軸線周りの一方側の端部が前記第１軸線周りの一方側で隣り合うカム面の外縁と重なったカム面が含まれている態様を採用してもよい。 In the present invention, the plurality of cam surfaces include a cam surface whose one end around the first axis overlaps with the outer edge of adjacent cam surfaces on one side around the first axis. May be adopted.

本発明において、前記複数のカム面のそれぞれは、前記第１軸線周りの他方側で隣り合うカム面と周方向に重なり合わないカム区間を備え、前記第１軸線周りの最も一方側に位置する第１カム面の前記カム区間は、前記第１軸線周りの最も他方側に位置する最終のカム面を除く他のカム面の前記カム区間より周方向に広い態様を採用することができる。かかる態様によれば、複数の従動歯が順に複数のカム面を摺動する際、最初のカム区間を従動歯が摺動する区間が長いので、従動車を回転させる際、最初のうちはゆっくりと回転させることができる。 In the present invention, each of the plurality of cam surfaces includes a cam section that does not overlap with adjacent cam surfaces on the other side around the first axis in the circumferential direction, and is located on the most one side around the first axis. The cam section of the first cam surface may be wider in the circumferential direction than the cam section of another cam surface other than the final cam surface located on the farthest side around the first axis. According to this aspect, when the plurality of driven teeth slide on the plurality of cam surfaces in order, the section in which the driven teeth slide in the first cam section is long, so that when the driven vehicle is rotated, it is slow at first. Can be rotated with.

本発明において、前記第１カム面に前記複数の従動歯のうちの対応する１つが摺動する間の前記従動車の回転速度は、前記第１カム面および前記最終のカム面とは異なるカム面に前記複数の従動歯のうちの対応する１つが摺動する間の前記従動車の回転速度より小さ
い態様を採用することができる。かかる態様によれば、最初のカム面に従動歯が摺動するときの回転速度が速いので、従動車を回転させる際、最初のうちはゆっくりと回転させることができる。 In the present invention, the rotation speed of the driven vehicle while the corresponding one of the plurality of driven teeth slides on the first cam surface is different from that of the first cam surface and the final cam surface. A mode smaller than the rotation speed of the driven vehicle while the corresponding one of the plurality of driven teeth slides on the surface can be adopted. According to this aspect, since the rotation speed when the driven tooth slides on the first cam surface is high, when the driven vehicle is rotated, it can be slowly rotated at the beginning.

本発明において、前記複数のカム面は、前記第１軸線周りの最も一方側から数えて２番目に位置する第２カム面を備え、前記第２カム面の前記第１軸線周りの一方側の端部は、前記第２カム面より前記第１軸線周りの他方側に位置するカム面の前記第１軸線周りの一方側の端部より径方向内側に位置する態様を採用することができる。かかる態様によれば、第２カム面に第２従動歯が接触するタイミングが遅れるため、第１従動歯が第１カム面を摺動する区間が長くなる。従って、従動車を回転させる際、最初のうちはゆっくりと回転させることができ、また、ゆっくりと回転する区間を長くすることができる。 In the present invention, the plurality of cam surfaces include a second cam surface located second from the onemost side around the first axis, and one side of the second cam surface around the first axis. The end portion may adopt an aspect in which the cam surface located on the other side of the first axis around the second cam surface is located radially inward from the end on one side of the first axis around the first axis. According to this aspect, since the timing at which the second driven tooth comes into contact with the second cam surface is delayed, the section in which the first driven tooth slides on the first cam surface becomes longer. Therefore, when rotating the driven vehicle, it can be rotated slowly at the beginning, and the section in which the driven vehicle rotates slowly can be lengthened.

本発明において、前記駆動車または前記従動車の角度位置を監視する位置検出器が設けられている態様を採用することができる。 In the present invention, it is possible to adopt an embodiment in which a position detector for monitoring the angular position of the driving vehicle or the driven vehicle is provided.

本発明において、前記位置検出器は、前記駆動車の角度位置を監視する態様を採用することができる。 In the present invention, the position detector can adopt an aspect of monitoring the angular position of the driving vehicle.

本発明において、前記位置検出器は、前記駆動車に設けられたセンサ用カム面によって変位する回転レバーと、前記回転レバーの変位によってオンオフが行われるスイッチと、を有している態様を採用することができる。 In the present invention, the position detector adopts an embodiment having a rotary lever displaced by a sensor cam surface provided on the drive vehicle and a switch that is turned on and off by the displacement of the rotary lever. be able to.

本発明において、前記位置検出器は、前記従動車が前記第２軸線周りの最も一方側に回転した後、停止している区間の途中位置で前記スイッチからの出力が切り換わるとともに、前記従動車が前記第２軸線周りの最も他方側に回転した後、停止している区間の途中位置で前記スイッチからの出力が切り換わる態様を採用することができる。かかる態様によれば、駆動車と回転レバーとの位置関係が多少ずれても、従動車が停止している状態をスイッチからの出力によって確実に監視することができる。 In the present invention, in the position detector, after the driven vehicle rotates to the most one side around the second axis, the output from the switch is switched at a position in the middle of the stopped section, and the driven vehicle is switched. It is possible to adopt a mode in which the output from the switch is switched at an intermediate position of the stopped section after the is rotated to the farthest side around the second axis. According to this aspect, even if the positional relationship between the driving vehicle and the rotary lever is slightly deviated, the state in which the driven vehicle is stopped can be reliably monitored by the output from the switch.

本発明において、前記駆動車は、前記第１軸線周りの回転位置を組立基準位置に合わせるための第１組立用目印を備える態様を採用することができる。かかる態様によれば、駆動車の回転位置を容易に合わせることができ、組立時の作業性が向上する。 In the present invention, the drive vehicle can adopt an embodiment provided with a first assembly mark for aligning the rotation position around the first axis with the assembly reference position. According to such an aspect, the rotational position of the drive vehicle can be easily adjusted, and the workability at the time of assembly is improved.

本発明において、前記従動車は、前記第２軸線周りの回転位置を組立基準位置に合わせるための第２組立用目印を備える態様を採用することができる。かかる態様によれば、従動車の回転位置を容易に合わせることができ、組立時の作業性が向上する。 In the present invention, the driven vehicle can adopt an embodiment provided with a second assembly mark for aligning the rotation position around the second axis with the assembly reference position. According to such an aspect, the rotational position of the driven vehicle can be easily adjusted, and the workability at the time of assembly is improved.

本発明に係る回転伝達機構は、ダンパ装置に用いることができる。この場合、ダンパ装置は、開口部が形成されたフレームと、前記駆動車を駆動するモータと、前記従動車の前記第２軸線周りの回転が伝達されて前記開口部を開閉するバッフルと、を有する。 The rotation transmission mechanism according to the present invention can be used in a damper device. In this case, the damper device includes a frame having an opening, a motor for driving the driving vehicle, and a baffle for opening and closing the opening by transmitting rotation of the driven vehicle around the second axis. Have.

本発明に係るダンパ装置において、前記付勢部材は、前記バッフルを前記開口部に対する開方向あるいは閉方向に付勢することにより、前記従動車を前記第２軸線周りの他方側に付勢している態様を採用することができる。 In the damper device according to the present invention, the urging member urges the driven vehicle to the other side around the second axis by urging the baffle in the opening direction or the closing direction with respect to the opening. Aspects can be adopted.

本発明において、前記モータは、前記駆動車を前記第１軸線周りの一方側に駆動させる回転駆動力のみを出力可能である態様を採用することができる。かかる態様によれば、一方方向にのみ回転する安価なモータを用いることができる。 In the present invention, the motor can adopt an aspect in which only the rotational driving force for driving the driving vehicle to one side around the first axis can be output. According to this aspect, an inexpensive motor that rotates in only one direction can be used.

本発明において、駆動車が第１軸線周りの一方側に回転すると、駆動歯が従動歯を介して従動車を第２軸線周りの一方側に駆動し、その後、駆動歯と従動歯との噛み合いが解除れると、従動車は、付勢部材の付勢力によって第２軸線周りの他方側に回転する。その際、従動歯は、駆動車に設けられたカム面形成部を摺動する。従って、駆動車の第１軸線周りの一方側のみに回転させる場合でも、従動車を第２軸線周りの一方側に回転駆動することができるとともに、従動車を第２軸線周りの他方側に回転させることができる。それ故、モータの制御回路等の構成を簡素化することができる。また、従動車を第２軸線周りの他方側に回転させる際には、付勢部材の付勢力を利用するが、その際には、従動歯が駆動車のカム面形成部を摺動するため、従動車が第２軸線周りの他方側に回転する際の速度等を制御することができる。さらに、複数の駆動歯および複数の従動歯が各々、軸線方向異なる位置に設けられているため、予定通りの組み合わせで駆動歯と従動歯とを噛み合わせることができる。それ故、従動車の角度位置を適正に制御することができる。 In the present invention, when the driving vehicle rotates to one side around the first axis, the driving teeth drive the driven vehicle to one side around the second axis via the driven teeth, and then the driving teeth and the driven teeth mesh with each other. When is released, the driven vehicle rotates to the other side around the second axis by the urging force of the urging member. At that time, the driven tooth slides on the cam surface forming portion provided on the driving vehicle. Therefore, even when the driven vehicle is rotated only on one side around the first axis, the driven vehicle can be rotationally driven to one side around the second axis and the driven vehicle is rotated to the other side around the second axis. Can be made to. Therefore, the configuration of the motor control circuit and the like can be simplified. Further, when rotating the driven vehicle to the other side around the second axis, the urging force of the urging member is used, but at that time, the driven teeth slide on the cam surface forming portion of the driving vehicle. , The speed at which the driven vehicle rotates to the other side around the second axis can be controlled. Further, since the plurality of driving teeth and the plurality of driven teeth are provided at different positions in the axial direction, the driving teeth and the driven teeth can be meshed with each other in a predetermined combination. Therefore, the angular position of the driven vehicle can be appropriately controlled.

本発明を適用したダンパ装置の斜視図である。It is a perspective view of the damper device to which this invention is applied. 図１に示すダンパ装置からカバーを外した状態の斜視図である。It is a perspective view of the state which the cover was removed from the damper device shown in FIG. 図１に示すダンパ装置の駆動部を回転中心軸線方向の一方側からみた様子を示す説明図である。It is explanatory drawing which shows the state which the drive part of the damper device shown in FIG. 1 was seen from one side in the direction of the rotation center axis. 図１に示すダンパ装置に用いた回転伝達機構等の斜視図である。It is a perspective view of the rotation transmission mechanism and the like used for the damper device shown in FIG. 図４に示す回転伝達機構に用いた駆動車および従動車を一方側からみた斜視図である。It is a perspective view of the drive vehicle and the driven vehicle used for the rotation transmission mechanism shown in FIG. 4 as viewed from one side. 図５に示す駆動車および従動車を他方側からみた斜視図である。FIG. 5 is a perspective view of the driving vehicle and the driven vehicle shown in FIG. 5 as viewed from the other side. 図５に示す駆動車および従動車を一方側からみた側面図である。FIG. 5 is a side view of the driving vehicle and the driven vehicle shown in FIG. 5 as viewed from one side. 図５に示す駆動車および従動車を他方側からみた側面図である。FIG. 5 is a side view of the driving vehicle and the driven vehicle shown in FIG. 5 as viewed from the other side. 図５に示す駆動車および従動車の平面的な構成を示す説明図である。It is explanatory drawing which shows the planar structure of the drive vehicle and the driven vehicle shown in FIG. 図５に示す従動車を第２軸線周りの一方側に回転させる様子を示す説明図である。It is explanatory drawing which shows the mode that the driven vehicle shown in FIG. 5 is rotated to one side around the 2nd axis. 図５に示す従動車を第２軸線周りの他方側に回転させる様子を示す説明図である。It is explanatory drawing which shows the mode that the driven vehicle shown in FIG. 5 is rotated to the other side around the 2nd axis line. 図５に示す駆動車の角度位置とバッフルの開度との関係を示す説明図である。It is explanatory drawing which shows the relationship between the angular position of the drive vehicle shown in FIG. 5 and the opening degree of a baffle. 第１変形例の駆動車および従動車を示す説明図である。It is explanatory drawing which shows the drive vehicle and the driven vehicle of the 1st modification. 第２変形例の駆動車および従動車を他方側からみた斜視図である。It is a perspective view which saw the driving vehicle and the driven vehicle of the 2nd modification from the other side. 第２変形例の駆動車および従動車を一方側からみた斜視図である。It is a perspective view which saw the driving vehicle and the driven vehicle of the 2nd modification from one side. 第２変形例の従動車を従動歯形成部の側から見た斜視図である。It is a perspective view which looked at the driven wheel of the 2nd modification from the side of the driven tooth forming part. 第２変形例の駆動車の平面図である。It is a top view of the drive vehicle of the 2nd modification. 第２変形例の駆動車の角度位置とバッフルの開度との関係を示す説明図である。It is explanatory drawing which shows the relationship between the angular position of the driving vehicle of 2nd modification, and the opening degree of a baffle. 第２変形例の駆動車および従動車を備えるバッフル駆動機構およびカバーの斜視図である。It is a perspective view of the baffle drive mechanism and the cover including the drive vehicle and the driven vehicle of the second modification.

以下、図面を参照して、本発明を適用した回転伝達機構および冷蔵庫用のダンパ装置について説明する。以下の説明では、バッフル４の回転中心軸線をＬとし、駆動車６の回転中心軸線を第１軸線Ｌ１とし、従動車７の回転中心軸線を第２軸線Ｌ２として説明する。また、回転中心軸線Ｌに沿う方向をＸ方向とし、回転中心軸線Ｌに対して交差する方向（冷気の流れる方向）をＺ方向とし、Ｘ方向およびＺ方向に交差する方向をＹ方向として説明する。また、Ｘ方向の一方側をＸ１とし、Ｘ方向の他方側をＸ２とし、Ｙ方向の一方側をＹ１とし、Ｙ方向の他方側をＹ２とし、Ｚ方向の一方側をＺ１とし、Ｚ方向の他方側をＺ２として説明する。 Hereinafter, a rotation transmission mechanism to which the present invention is applied and a damper device for a refrigerator will be described with reference to the drawings. In the following description, the rotation center axis of the baffle 4 will be L, the rotation center axis of the driving vehicle 6 will be the first axis L1, and the rotation center axis of the driven vehicle 7 will be the second axis L2. Further, the direction along the rotation center axis L is defined as the X direction, the direction intersecting the rotation center axis L (the direction in which cold air flows) is defined as the Z direction, and the direction intersecting the X direction and the Z direction is defined as the Y direction. .. Further, one side in the X direction is X1, the other side in the X direction is X2, one side in the Y direction is Y1, the other side in the Y direction is Y2, one side in the Z direction is Z1, and the other side in the Z direction is Z1. The other side will be described as Z2.

（全体構成）
図１は、本発明を適用したダンパ装置１の斜視図である。図２は、図１に示すダンパ装置１からカバーを外した状態の斜視図である。なお、図１には、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷに回転して起立し、開口部２０を開放した開姿勢を示してある。 (overall structure)
FIG. 1 is a perspective view of a damper device 1 to which the present invention is applied. FIG. 2 is a perspective view of the damper device 1 shown in FIG. 1 with the cover removed. Note that FIG. 1 shows an open posture in which the baffle 4 rotates around the rotation center axis L on one side LCW and stands up, and the opening 20 is opened.

図１および図２に示すダンパ装置１は、冷蔵庫の冷気通路等において冷気の供給を制御する装置であって、矩形の開口部２０が形成されたフレーム２と、フレーム２の開口部２０を開閉するためのバッフル４と、バッフル４を駆動するバッフル駆動機構５とを有している。フレーム２は、冷気がＺ方向に流れる筒部２１と、バッフル駆動機構５が配置されている空間とを仕切る隔壁２２を有しており、筒部２１は、Ｚ方向の両側に向けて開口している。バッフル駆動機構５は、フレーム２にフック機構によって連結されたカバー３によって覆われている。フレーム２およびカバー３は樹脂製である。 The damper device 1 shown in FIGS. 1 and 2 is a device that controls the supply of cold air in a cold air passage of a refrigerator or the like, and opens and closes a frame 2 having a rectangular opening 20 and an opening 20 of the frame 2. It has a baffle 4 for driving the baffle 4 and a baffle drive mechanism 5 for driving the baffle 4. The frame 2 has a partition wall 22 that separates a tubular portion 21 through which cold air flows in the Z direction and a space in which the baffle drive mechanism 5 is arranged, and the tubular portion 21 opens toward both sides in the Z direction. ing. The baffle drive mechanism 5 is covered with a cover 3 connected to the frame 2 by a hook mechanism. The frame 2 and the cover 3 are made of resin.

筒部２１の内側には、斜めに傾いた枠状のシール部２３が形成され、シール部２３の内側が開口部２０になっている。筒部２１の内側において、バッフル４は、Ｘ方向に延在する回転中心軸線Ｌ周りに回転可能にフレーム２に支持されている。図１に示す状態で、バッフル４は、シール部２３から離間し、開口部２０を開放した開姿勢になっている。この状態から、バッフル駆動機構５がバッフル４を回転中心軸線Ｌ周りの他方側ＬＣＣＷに回転駆動してバッフル４をシール部２３に当接させると、バッフル４は、開口部２０を塞いだ閉姿勢となる。本形態において、バッフル４は、開口部２０よりサイズが大きな開閉板４１と、開閉板４１の開口部２０側の面に貼り付けられた発泡ポリウレタン等からなるシート状の弾性部材４２とを有しており、弾性部材４２が開口部２０の周り（シール部２３）に当接して開口部２０を塞ぐ。冷気は、開口部２０に対してバッフル４が配置されている側（Ｚ方向の一方側Ｚ１）とは反対側（Ｚ方向の他方側Ｚ２）から開口部２０を通ってＺ方向の一方側Ｚ１に流れる。あるいは、冷気は、開口部２０に対してバッフル４が配置されている側（Ｚ方向の一方側Ｚ１）から開口部２０を通ってＺ方向の他方側Ｚ２に流れる場合もある。 A frame-shaped seal portion 23 that is inclined at an angle is formed inside the tubular portion 21, and the inside of the seal portion 23 is an opening 20. Inside the tubular portion 21, the baffle 4 is rotatably supported by the frame 2 around the rotation center axis L extending in the X direction. In the state shown in FIG. 1, the baffle 4 is separated from the seal portion 23 and is in an open posture with the opening 20 open. From this state, when the baffle drive mechanism 5 rotationally drives the baffle 4 to the other side LCCW around the rotation center axis L to bring the baffle 4 into contact with the seal portion 23, the baffle 4 is in a closed posture in which the opening 20 is closed. It becomes. In the present embodiment, the baffle 4 has an opening / closing plate 41 having a size larger than that of the opening 20, and a sheet-shaped elastic member 42 made of polyurethane foam or the like attached to the surface of the opening / closing plate 41 on the opening 20 side. The elastic member 42 abuts around the opening 20 (seal portion 23) to close the opening 20. Cold air passes through the opening 20 from the side opposite to the side where the baffle 4 is arranged (one side Z1 in the Z direction) (the other side Z2 in the Z direction) with respect to the opening 20, and the one side Z1 in the Z direction. Flow to. Alternatively, cold air may flow from the side where the baffle 4 is arranged with respect to the opening 20 (one side Z1 in the Z direction) through the opening 20 to the other side Z2 in the Z direction.

（バッフル駆動機構５の構成）
図３は、図１に示すダンパ装置１の駆動部を回転中心軸線Ｌ方向の一方側からみた様子を示す説明図である。図２および図３に示すように、バッフル駆動機構５は、モータ５０と、モータ５０の回転をバッフル４に伝達するための伝達機構５５とを有している。伝達機構５５は、モータ５０の出力軸５１に形成されたウォーム５２と、ウォーム５２と噛み合うウォームホイール５６と、ウォームホイール５６に形成された歯車（図示せず）と噛み合う大径歯車５７１を備えた複合歯車５７と、複合歯車５７の小径歯車（図示せず）を介して、複合歯車５７の回転が伝達される回転伝達機構１０とを有しており、回転伝達機構１０からバッフル４に回転が伝達される。モータ５０としては各種モータを用いることができる。本形態においては、モータ５０としてＤＣモータが用いられているため、制御が容易である。モータ５０は、モータ軸線周りの一方方向の回転のみを出力する。本形態において、モータ５０は、バッフル４を回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）に回転させる方向のみに回転する。すなわち、モータ５０は、後述する駆動車６を第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに駆動させる回転駆動力のみを出力する。 (Structure of baffle drive mechanism 5)
FIG. 3 is an explanatory view showing a state in which the drive unit of the damper device 1 shown in FIG. 1 is viewed from one side in the rotation center axis L direction. As shown in FIGS. 2 and 3, the baffle drive mechanism 5 includes a motor 50 and a transmission mechanism 55 for transmitting the rotation of the motor 50 to the baffle 4. The transmission mechanism 55 includes a worm 52 formed on the output shaft 51 of the motor 50, a worm wheel 56 that meshes with the worm 52, and a large-diameter gear 571 that meshes with a gear (not shown) formed on the worm wheel 56. It has a composite gear 57 and a rotation transmission mechanism 10 for transmitting the rotation of the composite gear 57 via a small diameter gear (not shown) of the composite gear 57, and rotation is transmitted from the rotation transmission mechanism 10 to the baffle 4. Be transmitted. Various motors can be used as the motor 50. In this embodiment, since the DC motor is used as the motor 50, control is easy. The motor 50 outputs only one-way rotation around the motor axis. In this embodiment, the motor 50 rotates only in the direction in which the baffle 4 is rotated in one side LCW (opening direction) around the rotation center axis L. That is, the motor 50 outputs only the rotational driving force that drives the drive vehicle 6 described later to one side L1CCW around the first axis L1.

（回転伝達機構１０の構成）
図４は、図１に示すダンパ装置１に用いた回転伝達機構１０等の斜視図である。図４に示すように、回転伝達機構１０は、バッフル４の回転中心軸線Ｌと平行にＸ方向に延在する第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転する駆動車６と、駆動車６によって第１軸線Ｌ１と平行な第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転駆動される従動車７と、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに付勢する付勢部材８とを有している。本形態
において、従動車７は、バッフル４に連結されている。従って、従動車７の回転中心軸線（第２軸線Ｌ２）は、バッフル４の回転中心軸線Ｌと一致している。それ故、回転伝達機構１０において、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転すると、従動車７が第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷに回転するので、バッフル４は開姿勢となる。これに対して、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転しても、駆動車６による従動車７の回転駆動が停止すると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する。従って、バッフル４は、回転中心軸線Ｌ周りの他方側ＬＣＣＷに回転し、閉姿勢となり、それ以上の回転中心軸線Ｌ周りの他方側ＬＣＣＷの回転は、フレーム２に設けられたストッパ等によって阻止される。 (Structure of rotation transmission mechanism 10)
FIG. 4 is a perspective view of the rotation transmission mechanism 10 and the like used in the damper device 1 shown in FIG. As shown in FIG. 4, the rotation transmission mechanism 10 is composed of a drive vehicle 6 that rotates on one side L1CCW around the first axis L1 extending in the X direction in parallel with the rotation center axis L of the baffle 4, and a drive vehicle 6. It has a driven vehicle 7 that is rotationally driven by one side L2CW around the second axis L2 parallel to the first axis L1 and an urging member 8 that urges the driven vehicle 7 to the other side L2CCW around the second axis L2. doing. In this embodiment, the driven vehicle 7 is connected to the baffle 4. Therefore, the rotation center axis (second axis L2) of the driven vehicle 7 coincides with the rotation center axis L of the baffle 4. Therefore, in the rotation transmission mechanism 10, when the driving vehicle 6 rotates to one side L1CCW around the first axis L1, the driven vehicle 7 rotates to one side L2CW around the second axis L2, and the baffle 4 rotates to the rotation center axis L. Since the baffle 4 rotates to one side LCW around it, the baffle 4 is in the open posture. On the other hand, even if the driving vehicle 6 rotates to one side L1CCW around the first axis L1, when the rotational driving of the driven vehicle 7 by the driving vehicle 6 is stopped, the driven vehicle 7 has an urging force of the urging member 8. Rotates to the other side L2CCW around the second axis L2. Therefore, the baffle 4 rotates to the other side LCCW around the rotation center axis L and becomes a closed posture, and further rotation of the other side LCCW around the rotation center axis L is blocked by a stopper or the like provided on the frame 2. To.

図２および図４に示すように、付勢部材８は、フレーム２の筒部２１の内壁２１０に形成された係合部２１１と、バッフル４の開閉板４１の背面側（弾性部材４２とは反対側）に形成された係合部４１１とに端部８１、８２が各々保持された捩りコイルバネ８０からなる。かかる付勢部材８（捩りコイルバネ８０）は、バッフル４を回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に付勢することによって、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに付勢している。 As shown in FIGS. 2 and 4, the urging member 8 has an engaging portion 211 formed on the inner wall 210 of the tubular portion 21 of the frame 2 and a back surface side (elastic member 42) of the opening / closing plate 41 of the baffle 4. It is composed of a torsion coil spring 80 in which end portions 81 and 82 are respectively held by an engaging portion 411 formed on the opposite side). The urging member 8 (twisting coil spring 80) urges the baffle 4 to the other side LCCW (closed direction) around the rotation center axis L to attach the driven vehicle 7 to the other side L2CCW around the second axis L2. It is gaining momentum.

なお、回転伝達機構１０には、後述するように、駆動車６または従動車７（バッフル４）の角度位置を監視する位置検出器９が設けられている。 As will be described later, the rotation transmission mechanism 10 is provided with a position detector 9 that monitors the angular position of the driving vehicle 6 or the driven vehicle 7 (baffle 4).

（駆動車６および従動車７の構成）
図５は、図４に示す回転伝達機構１０に用いた駆動車６および従動車７を一方側からみた斜視図である。図６は、図５に示す駆動車６および従動車７を他方側からみた斜視図である。図７は、図５に示す駆動車６および従動車７を一方側からみた側面図である。図８は、図５に示す駆動車６および従動車７を他方側からみた側面図である。図９は、図５に示す駆動車６および従動車７の平面的な構成を示す説明図である。 (Structure of driving vehicle 6 and driven vehicle 7)
FIG. 5 is a perspective view of the drive vehicle 6 and the driven vehicle 7 used in the rotation transmission mechanism 10 shown in FIG. 4 as viewed from one side. FIG. 6 is a perspective view of the driving vehicle 6 and the driven vehicle 7 shown in FIG. 5 as viewed from the other side. FIG. 7 is a side view of the driving vehicle 6 and the driven vehicle 7 shown in FIG. 5 as viewed from one side. FIG. 8 is a side view of the driving vehicle 6 and the driven vehicle 7 shown in FIG. 5 as viewed from the other side. FIG. 9 is an explanatory view showing a planar configuration of the driving vehicle 6 and the driven vehicle 7 shown in FIG.

図５、図６、図７、図８および図９に示すように、駆動車６は、外周面に歯車６１０が形成された円盤部６１と、円盤部６１の中央から第１軸線Ｌ１方向の一方側Ｌ１ａに突出した円柱状の第１胴部６２と、第１胴部６２の中央から第１軸線Ｌ１方向の一方側Ｌ１ａに突出した円柱状の第２胴部６３と、第２胴部６３の中央から第１軸線Ｌ１方向の一方側Ｌ１ａに突出した円柱状の軸部６４とを有している。また、駆動車６は、円盤部６１の中央から第１軸線Ｌ１方向の他方側Ｌ１ｂに突出した軸部６５（図７および図８参照）を備えており、かかる軸部６４、６５がカバー３およびフレーム２の隔壁２２に回転可能に支持されている。歯車６１０は、図３等に示す複合歯車５７の小径歯車と噛み合っている。 As shown in FIGS. 5, 6, 7, 8 and 9, the drive vehicle 6 has a disk portion 61 having a gear 610 formed on the outer peripheral surface thereof and a disk portion 61 from the center of the disk portion 61 in the direction of the first axis L1. A columnar first body portion 62 projecting to one side L1a, a columnar second body portion 63 projecting from the center of the first body portion 62 to one side L1a in the direction of the first axis L1, and a second body portion. It has a columnar shaft portion 64 protruding from the center of 63 to one side L1a in the direction of the first axis L1. Further, the drive vehicle 6 includes a shaft portion 65 (see FIGS. 7 and 8) protruding from the center of the disk portion 61 to the other side L1b in the first axis L1 direction, and the shaft portions 64 and 65 cover the cover 3. And rotatably supported by the partition wall 22 of the frame 2. The gear 610 meshes with the small diameter gear of the composite gear 57 shown in FIG. 3 and the like.

駆動車６には、従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転駆動する複数の駆動歯６６が周方向に配置された駆動歯形成部６６０と、従動車７が付勢部材８による付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する際に従動車７が摺動するカム面形成部６７０とが周方向で隣り合うように設けられている。 The drive vehicle 6 includes a drive tooth forming portion 660 in which a plurality of drive teeth 66 for rotationally driving the driven vehicle 7 on one side L2CW around the second axis L2 are arranged in the circumferential direction, and the driven vehicle 7 is an urging member 8. The cam surface forming portion 670 on which the driven vehicle 7 slides when rotating to the other side L2CCW around the second axis L2 is provided so as to be adjacent to each other in the circumferential direction.

これに対して、従動車７には、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転した際に駆動歯６６が順に当接する複数の従動歯７６が周方向に配置された従動歯形成部７６０が設けられている。本形態において、従動車７は扇形歯車であり、外周面によって、従動歯形成部７６０が構成されている。従動車７において、扇形の中心には、第２軸線Ｌ２方向の一方側Ｌ２ａに突出した軸部７４と、第２軸線Ｌ２方向の他方側Ｌ２ｂに突出した軸部７５とが形成されており、かかる軸部７４、７５がカバー３およびフレーム２の隔壁２２に回転可能に支持されている。 On the other hand, in the driven vehicle 7, a plurality of driven teeth 76 that the drive teeth 66 come into contact with in order when the drive vehicle 6 rotates to one side L1CCW around the first axis L1 are arranged in the circumferential direction. A forming portion 760 is provided. In the present embodiment, the driven vehicle 7 is a fan-shaped gear, and the driven tooth forming portion 760 is formed by the outer peripheral surface. In the driven vehicle 7, a shaft portion 74 protruding from one side L2a in the second axis L2 direction and a shaft portion 75 protruding from the other side L2b in the second axis L2 direction are formed at the center of the fan shape. The shaft portions 74 and 75 are rotatably supported by the partition wall 22 of the cover 3 and the frame 2.

（駆動歯６６および従動歯７６等の詳細構成）
本形態の回転伝達機構１０において、駆動車６では、複数の駆動歯６６が各々、第１軸線Ｌ１方向の異なる位置に配置されており、第１軸線Ｌ１方向に沿って多段に形成されている。かかる構成に対応して、複数の従動歯７６は各々、第２軸線Ｌ２方向の異なる位置に設けられており、第２軸線Ｌ２方向に沿って多段に形成されている。 (Detailed configuration of driving tooth 66, driven tooth 76, etc.)
In the rotation transmission mechanism 10 of the present embodiment, in the drive vehicle 6, a plurality of drive teeth 66 are arranged at different positions in the first axis L1 direction, and are formed in multiple stages along the first axis L1 direction. .. Corresponding to such a configuration, the plurality of driven teeth 76 are provided at different positions in the second axis L2 direction, and are formed in multiple stages along the second axis L2 direction.

本形態において、駆動車６には、計４つの駆動歯６６（第１駆動歯６６１、第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４）が第１軸線Ｌ１方向に沿って多段に形成されている。４つの駆動歯６６は各々、第１軸線Ｌ１方向の各位置に１つずつ形成されており、第１軸線Ｌ１方向からみたとき、４つの駆動歯６６は等角度間隔に形成されている。 In the present embodiment, the drive vehicle 6 has a total of four drive teeth 66 (first drive tooth 661, second drive tooth 662, third drive tooth 663, and fourth drive tooth 664) along the first axis L1 direction. It is formed in multiple stages. Each of the four drive teeth 66 is formed at each position in the first axis L1 direction, and the four drive teeth 66 are formed at equal angular intervals when viewed from the first axis L1 direction.

４つの駆動歯６６のうち、第１軸線Ｌ１方向の最も一方側Ｌ１ａに形成された第１駆動歯６６１は、第１軸線Ｌ１周りの最も他方側Ｌ１ＣＷに配置されており、第１駆動歯６６１に対して第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに沿って第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４が順に配置されている。従って、４つの駆動歯６６のうち、第１軸線Ｌ１方向の最も他方側Ｌ１ｂに形成された第４駆動歯６６４は、第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷに位置する。それ故、複数の駆動歯６６では、第１軸線Ｌ１方向の一方側Ｌ１ａに位置する駆動歯６６が第１軸線Ｌ１方向の他方側Ｌ１ｂに位置する駆動歯６６より第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置する。 Of the four drive teeth 66, the first drive tooth 661 formed on the most one side L1a in the direction of the first axis L1 is arranged on the most other side L1CW around the first axis L1 and is the first drive tooth 661. The second driving tooth 662, the third driving tooth 663, and the fourth driving tooth 664 are arranged in this order along one side L1CCW around the first axis L1. Therefore, of the four drive teeth 66, the fourth drive tooth 664 formed on the most opposite side L1b in the direction of the first axis L1 is located on the most one side L1CCW around the first axis L1. Therefore, in the plurality of drive teeth 66, the drive tooth 66 located on one side L1a in the first axis L1 direction is the other side around the first axis L1 from the drive tooth 66 located on the other side L1b in the first axis L1 direction. It is located at L1CW.

ここで、駆動車６は、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転した際のみ、駆動歯６６が従動車７を駆動する。このため、４つの駆動歯６６は、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面が、インボリュート曲線をもつ歯面になっており、４つの駆動歯６６の径方向外側の端部（歯先）から第１軸線Ｌ１周りの他方側Ｌ１ＣＷは、４つの駆動歯６６の径方向外側の端部から連続して延在する円周面になっている。また、駆動歯形成部６６０に対して第１軸線Ｌ１周りの他方側Ｌ１ＣＷに形成された円周面にカム面形成部６７０が構成されている。本形態では、４つの駆動歯６６のうち、第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面は、単純なインボリュート曲線をもつ歯面になっている。これに対して、第１駆動歯６６１の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面は、インボリュート曲線を基本にして径方向外側の端部の曲率半径を大きくしてある。このため、後述する動作を行った際、全開位置手前から全開位置への移行をスムーズに行うことができる。また、力の掛かる方向が急激に変化しないので、瞬間の衝撃音等を小さくすることができる。 Here, in the driving vehicle 6, the driving teeth 66 drive the driven vehicle 7 only when the driving vehicle 6 rotates to one side L1CCW around the first axis L1. Therefore, in the four drive teeth 66, the surface of one side L1CCW around the first axis L1 is a tooth surface having an involute curve, and the radial outer ends (tooth tips) of the four drive teeth 66. The other side L1CW around the first axis L1 is a circumferential surface that extends continuously from the radial outer ends of the four drive teeth 66. Further, the cam surface forming portion 670 is formed on the circumferential surface formed on the other side L1CW around the first axis L1 with respect to the driving tooth forming portion 660. In the present embodiment, of the four drive teeth 66, the surface of the second drive tooth 662, the third drive tooth 663, and one side L1CCW around the first axis L1 of the fourth drive tooth 664 has a simple involute curve. It is a tooth surface. On the other hand, the surface of the one-sided L1CCW around the first axis L1 of the first driving tooth 661 has a large radius of curvature at the outer end in the radial direction based on the involute curve. Therefore, when the operation described later is performed, the transition from the front of the fully open position to the fully open position can be smoothly performed. Further, since the direction in which the force is applied does not change suddenly, it is possible to reduce the instantaneous impact sound and the like.

従動車７には、計４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）が第２軸線Ｌ２方向に沿って多段に形成されている。第１軸線Ｌ１および第２軸線Ｌ２に対して直交する方向からみたとき、４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）は各々、４つの駆動歯６６（第１駆動歯６６１、第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４）と重なっている。本形態において、計４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）は各々、第２軸線Ｌ２方向の各位置に１つずつ形成されており、第２軸線Ｌ２方向からみたとき、４つの従動歯７６は等角度間隔に形成されている。 A total of four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764) are formed in the driven vehicle 7 in multiple stages along the second axis L2 direction. Has been done. Four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764) when viewed from a direction orthogonal to the first axis L1 and the second axis L2. Each overlaps four drive teeth 66 (first drive tooth 661, second drive tooth 662, third drive tooth 663, and fourth drive tooth 664). In this embodiment, a total of four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764) are each one at each position in the second axis L2 direction. The four driven teeth 76 are formed at equal intervals when viewed from the second axis L2 direction.

４つの従動歯７６のうち、第２軸線Ｌ２方向の最も一方側Ｌ２ａに形成された第１従動歯７６１は、第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに配置されており、第１従動歯７６１から第２軸線Ｌ２周りの一方側Ｌ２ＣＷに向かって第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４が順に配置されている。従って、４つの従動歯７６のうち、第２軸線Ｌ２方向の最も他方側Ｌ２ｂに形成された第４従動歯７６４は、第２軸線Ｌ２
周りの最も一方側Ｌ２ＣＷに位置する。それ故、複数の従動歯７６では、第２軸線Ｌ２方向の一方側Ｌ２ａに位置する従動歯７６が第２軸線Ｌ２方向の他方側Ｌ２ｂに位置する従動歯７６より第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに位置する。 Of the four driven teeth 76, the first driven tooth 761 formed on the most one side L2a in the second axis L2 direction is arranged on the most opposite side L2CCW around the second axis L2, and the first driven tooth 761. The second driven tooth 762, the third driven tooth 763, and the fourth driven tooth 764 are arranged in this order from the second axis toward the one side L2CW around the second axis L2. Therefore, of the four driven teeth 76, the fourth driven tooth 764 formed on the most opposite side L2b in the second axis L2 direction is the second axis L2.
It is located on the most one side L2CW around. Therefore, in the plurality of driven teeth 76, the driven tooth 76 located on one side L2a in the second axis L2 direction is the other side around the second axis L2 from the driven tooth 76 located on the other side L2b in the second axis L2 direction. It is located at L2CCW.

ここで、従動歯７６は、第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷからのみ駆動歯６６が当接する。このため、４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）は、第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷの面が、インボリュート曲線をもつ歯面になっており、４つの従動歯７６の径方向外側の端部（歯先）から第２軸線Ｌ２周りの一方側Ｌ２ＣＷは、４つの従動歯７６の径方向外側の端部から連続して延在する円周面になっている。 Here, the driven tooth 76 comes into contact with the driving tooth 66 only from the other side L2CCW around the second axis L2. Therefore, in the four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764), the surface of the other side L2CCW around the second axis L2 is inverted. It has a curved tooth surface, and one side L2CW around the second axis L2 from the radial outer end (tooth tip) of the four driven teeth 76 is the radial outer end of the four driven teeth 76. It is a circumferential surface that extends continuously from.

また、従動車７の従動歯形成部７６０には、複数の従動歯７６より第２軸線Ｌ２周りの一方側Ｌ２ＣＷに、駆動車６が第１軸線Ｌ１線周りの一方側Ｌ１ＣＣＷに回転した際に駆動歯６６が当接しない最終従動歯７６５が複数の従動歯７６よりも第２軸線Ｌ２方向の他方側Ｌ２ｂに設けられている。 Further, when the driven tooth forming portion 760 of the driven vehicle 7 is rotated from the plurality of driven teeth 76 to one side L2CW around the second axis L2 and the driving vehicle 6 is rotated to one side L1CCW around the first axis L1 line. The final driven tooth 765 with which the driving tooth 66 does not abut is provided on the other side L2b in the second axis L2 direction with respect to the plurality of driven teeth 76.

ここで、複数の従動歯７６の各ピッチは等しい。これに対して、複数の従動歯７６のうち、第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに位置する第４従動歯７６４と最終従動歯７６５とのピッチは、複数の従動歯７６のピッチより広い。例えば、第４従動歯７６４と最終従動歯７６５とのピッチは、複数の従動歯７６のピッチの１．１倍から１．８倍であり、本形態では、第４従動歯７６４と最終従動歯７６５とのピッチは、複数の従動歯７６のピッチの１．２５倍である。 Here, the pitches of the plurality of driven teeth 76 are equal. On the other hand, among the plurality of driven teeth 76, the pitch between the fourth driven tooth 764 located at the most one side L2CW around the second axis L2 and the final driven tooth 765 is wider than the pitch of the plurality of driven teeth 76. .. For example, the pitch of the fourth driven tooth 764 and the final driven tooth 765 is 1.1 to 1.8 times the pitch of the plurality of driven teeth 76, and in this embodiment, the pitch of the fourth driven tooth 764 and the final driven tooth 764 and the final driven tooth 76. The pitch with 765 is 1.25 times the pitch of the plurality of driven teeth 76.

（カム面形成部の詳細構成）
駆動車６において、カム面形成部６７０には、従動車７が付勢部材８による付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する際に複数の従動歯７６が順に摺動する複数のカム面６７が第１軸線Ｌ１方向の異なる位置に配置されており、複数のカム面６７は、第１軸線Ｌ１方向に沿って多段に形成されている。 (Detailed configuration of cam surface forming part)
In the drive vehicle 6, a plurality of driven teeth 76 slide in order on the cam surface forming portion 670 when the driven vehicle 7 is rotated to the other side L2CCW around the second axis L2 by the urging force of the urging member 8. The cam surfaces 67 are arranged at different positions in the first axis L1 direction, and the plurality of cam surfaces 67 are formed in multiple stages along the first axis L1 direction.

本形態において、カム面形成部６７０には、４つの従動歯７６に対応して４つのカム面６７（第１カム面６７１、第２カム面６７２、第３カム面６７３および第４カム面６７４）が形成されている。また、カム面形成部６７０には、従動車７の最終従動歯７６５が当接する最終のカム面６７５が設けられている。従って、カム面形成部６７０には、計５つのカム面６７が形成されており、第１軸線Ｌ１および第２軸線Ｌ２に対して直交する方向からみたとき、５つのカム面６７（第１カム面６７１、第２カム面６７２、第３カム面６７３、第４カム面６７４、および最終のカム面６７５）は各々、４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）および最終従動歯７６５と重なっている。 In the present embodiment, the cam surface forming portion 670 has four cam surfaces 67 (first cam surface 671, second cam surface 672, third cam surface 673, and fourth cam surface 674) corresponding to the four driven teeth 76. ) Is formed. Further, the cam surface forming portion 670 is provided with a final cam surface 675 to which the final driven tooth 765 of the driven vehicle 7 comes into contact. Therefore, a total of five cam surfaces 67 are formed on the cam surface forming portion 670, and when viewed from a direction orthogonal to the first axis L1 and the second axis L2, the five cam surfaces 67 (first cam). The surface 671, the second cam surface 672, the third cam surface 673, the fourth cam surface 674, and the final cam surface 675) have four driven teeth 76 (first driven tooth 761, second driven tooth 762, first), respectively. It overlaps with the 3 driven tooth 763, the 4th driven tooth 764), and the final driven tooth 765.

５つのカム面６７のうち、第１軸線Ｌ１方向の最も一方側Ｌ１ａに形成された第１カム面６７１は、第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷに配置されており、第１カム面６７１に対して第１軸線Ｌ１周りの他方側Ｌ１ＣＷに沿って第２カム面６７２、第３カム面６７３、第４カム面６７４、および最終のカム面６７５が順に配置されている。従って、５つのカム面６７のうち、第１軸線Ｌ１方向の最も他方側Ｌ１ｂに形成された最終のカム面６７５は、第１軸線Ｌ１周りの最も他方側Ｌ１ＣＷに位置する。それ故、複数のカム面６７では、第１軸線Ｌ１方向の一方側Ｌ１ａに位置するカム面６７が第１軸線Ｌ１方向の他方側Ｌ１ｂに位置するカム面６７より第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに位置している。 Of the five cam surfaces 67, the first cam surface 671 formed on the most one side L1a in the direction of the first axis L1 is arranged on the most one side L1CCW around the first axis L1 and is arranged on the first cam surface 671. A second cam surface 672, a third cam surface 673, a fourth cam surface 674, and a final cam surface 675 are arranged in this order along the other side L1CW around the first axis L1. Therefore, of the five cam surfaces 67, the final cam surface 675 formed on the most opposite side L1b in the first axis L1 direction is located on the most opposite side L1CW around the first axis L1. Therefore, in the plurality of cam surfaces 67, the cam surface 67 located on one side L1a in the first axis L1 direction is one side around the first axis L1 from the cam surface 67 located on the other side L1b in the first axis L1 direction. It is located at L1CCW.

５つのカム面６７はいずれも、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷから他方側Ｌ１Ｃ
Ｗに円弧状に延在した円弧面からなり、周方向の一部に従動歯７６が摺動する。このため、５つのカム面６７はいずれも、周方向で隣り合うカム面同士は、一定の角度範囲で重なっている。本形態において、第１カム面６７１は、第１駆動歯６６１の径方向外側の端部から周方向に延在している。また、複数のカム面６７はいずれも、第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷの端部が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷで隣り合うカム面６７より径方向外側に位置する。 All of the five cam surfaces 67 are from one side L1CCW to the other side L1C around the first axis L1.
It is composed of an arcuate surface extending in an arc shape on W, and a part of the driven tooth 76 in the circumferential direction slides. Therefore, all of the five cam surfaces 67 overlap with each other in the circumferential direction within a certain angle range. In the present embodiment, the first cam surface 671 extends in the circumferential direction from the radially outer end of the first drive tooth 661. Further, in each of the plurality of cam surfaces 67, the end portion of the most one side L1CCW around the first axis L1 is located radially outside the adjacent cam surfaces 67 on the one side L1CCW around the first axis L1.

本形態において、５つのカム面６７はいずれも、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷから他方側Ｌ１ＣＷに向けて縮径し、駆動歯６６の歯底の延長線上に位置する第１胴部６２の外周面に到達している。また、最終のカム面６７５は、他のカム面６７（第１カム面６７１、第２カム面６７２、第３カム面６７３および第４カム面６７４）より、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに位置する部分の外径の周方向での減少率が小さく、かつ、第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置する部分の外径の周方向での減少率が大きい。また、第２カム面６７２は、第１軸線Ｌ１周りの他方側Ｌ１ＣＷに設けられたカム面６７（第３カム面６７３、第４カム面６７４、および最終のカム面６７５）より第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷの端部が径方向内側に位置する。従って、後述する動作を行う際、第２従動歯７６２より後段の第３従動歯７６３、第４従動歯７６４、および最終従動歯７６５は、第２カム面６７２から第１軸線Ｌ１方向の他方側Ｌ１ｂに延在している部分と干渉しない。 In the present embodiment, all of the five cam surfaces 67 have a diameter reduced from one side L1CCW around the first axis L1 toward the other side L1CW, and the first body portion 62 is located on the extension line of the tooth bottom of the drive tooth 66. Has reached the outer peripheral surface of. Further, the final cam surface 675 is one side L1CCW around the first axis L1 from the other cam surfaces 67 (first cam surface 671, second cam surface 672, third cam surface 673 and fourth cam surface 674). The reduction rate of the outer diameter of the portion located in the circumferential direction is small, and the reduction rate of the outer diameter of the portion located on the other side L1CW around the first axis L1 is large in the circumferential direction. Further, the second cam surface 672 is the first axis L1 from the cam surface 67 (third cam surface 673, fourth cam surface 674, and final cam surface 675) provided on the other side L1CW around the first axis L1. The end of the one-sided L1CCW around it is located radially inward. Therefore, when performing the operation described later, the third driven tooth 763, the fourth driven tooth 764, and the final driven tooth 765, which are located after the second driven tooth 762, are on the other side of the second cam surface 672 in the direction of the first axis L1. It does not interfere with the part extending to L1b.

また、本形態では、図９および図１０を参照して後述するように、複数の従動歯７６が複数のカム面６７に対して順に摺動する各区間の間には、現在の区間の従動歯７６がカム面に接しているうちに、次の区間の従動歯７６または最終従動歯７６５がカム面６７に対して接するように構成されている。 Further, in the present embodiment, as will be described later with reference to FIGS. 9 and 10, the driven of the current section is between the sections in which the plurality of driven teeth 76 slide in order with respect to the plurality of cam surfaces 67. While the tooth 76 is in contact with the cam surface, the driven tooth 76 or the final driven tooth 765 in the next section is configured to be in contact with the cam surface 67.

（位置検出器９の構成）
図４に示すように、本形態の回転伝達機構１０には、駆動車６または従動車７（バッフル４）の角度位置を監視する位置検出器９が設けられている。本形態において、位置検出器９は、駆動車６の角度位置を監視するように構成されている。 (Configuration of position detector 9)
As shown in FIG. 4, the rotation transmission mechanism 10 of the present embodiment is provided with a position detector 9 that monitors the angular position of the driving vehicle 6 or the driven vehicle 7 (baffle 4). In this embodiment, the position detector 9 is configured to monitor the angular position of the driving vehicle 6.

位置検出器９は、駆動車６の第２胴部６３に設けられたセンサ用カム面６３０によって変位する回転レバー９１と、回転レバー９１の変位によってオンオフが行われるスイッチ９２とを有している。センサ用カム面６３０は、第１軸線Ｌ１の他方側Ｌ１ＣＷに沿って、小径部６３１、拡径部６３４、大径部６３２および縮径部６３５が設けられている。 The position detector 9 has a rotary lever 91 that is displaced by a sensor cam surface 630 provided on the second body portion 63 of the drive vehicle 6, and a switch 92 that is turned on and off by the displacement of the rotary lever 91. .. The sensor cam surface 630 is provided with a small diameter portion 631, an enlarged diameter portion 634, a large diameter portion 632, and a reduced diameter portion 635 along the other side L1CW of the first axis L1.

スイッチ９２、は例えばタクトスイッチである。回転レバー９１は、フレーム２の隔壁２２に形成された円筒部によって回転可能に支持された支軸９１０と、支軸９１０から駆動車６のセンサ用カム面６３０に向けて突出した第１アーム部９１１と、支軸９１０からスイッチ９２に向けて突出した第２アーム部９１２とを有している。第１アーム部９１１の先端部は、センサ用カム面６３０に摺動する円形の第１当接部９１３になっており、第２アーム部９１２の先端部は、スイッチ９２に当接する第２当接部９１４になっている。 The switch 92 is, for example, a tact switch. The rotary lever 91 has a support shaft 910 rotatably supported by a cylindrical portion formed on the partition wall 22 of the frame 2, and a first arm portion protruding from the support shaft 910 toward the sensor cam surface 630 of the drive vehicle 6. It has a 911 and a second arm portion 912 protruding from the support shaft 910 toward the switch 92. The tip of the first arm 911 is a circular first contact 913 that slides on the sensor cam surface 630, and the tip of the second arm 912 is the second contact that comes into contact with the switch 92. It is a tangent part 914.

回転レバー９１に対しては、カバー３によって支持された捩りコイルバネ９３が設けられている。捩りコイルバネ９３の一方の端部９３１はカバー３に支持され、捩りコイルバネ９３の他方の端部９３２は、回転レバー９１の第２アーム部９１２の先端部に支持されている。従って、第２アーム部９１２の先端部（第２当接部９１４）は、捩りコイルバネ９３によってスイッチ９２に向けて付勢されている。それ故、第１アーム部９１１の先端部（第１当接部９１３）がセンサ用カム面６３０の小径部６３１に当接している区間では、第２アーム部９１２の第２当接部９１４がスイッチ９２を押圧する一方、第１アーム部９１１の先端部（第１当接部９１３）がセンサ用カム面６３０の大径部６３２に当接して
いる区間では、第２アーム部９１２の第２当接部９１４がスイッチ９２から離間する。従って、スイッチ９２のオンオフを監視すれば、駆動車６の角度位置を検出することができ、それ故、従動車７およびバッフル４の角度位置を監視することができる。 A torsion coil spring 93 supported by the cover 3 is provided on the rotary lever 91. One end 931 of the torsion coil spring 93 is supported by the cover 3, and the other end 932 of the torsion coil spring 93 is supported by the tip of the second arm 912 of the rotary lever 91. Therefore, the tip end portion (second contact portion 914) of the second arm portion 912 is urged toward the switch 92 by the torsion coil spring 93. Therefore, in the section where the tip end portion (first contact portion 913) of the first arm portion 911 is in contact with the small diameter portion 631 of the sensor cam surface 630, the second contact portion 914 of the second arm portion 912 is In the section where the tip portion (first contact portion 913) of the first arm portion 911 is in contact with the large diameter portion 632 of the sensor cam surface 630 while pressing the switch 92, the second arm portion 912 is in contact with the second arm portion 912. The contact portion 914 is separated from the switch 92. Therefore, by monitoring the on / off of the switch 92, the angular position of the driving vehicle 6 can be detected, and therefore the angular position of the driven vehicle 7 and the baffle 4 can be monitored.

本形態において、位置検出器９は、図１２を参照して後述するように、従動車７が第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに回転した後、そこで停止している第１区間の途中位置でスイッチ９２からの出力が切り換わるとともに、従動車７が第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに回転した後、そこで停止している第２区間の途中位置でスイッチ９２からの出力が切り換わる。 In the present embodiment, as will be described later with reference to FIG. 12, the position detector 9 is in the middle of the first section in which the driven vehicle 7 rotates to the most one side L2CW around the second axis L2 and then stops there. The output from the switch 92 is switched at the position, and after the driven vehicle 7 rotates to the farthest side L2CCW around the second axis L2, the output from the switch 92 is cut off at the middle position of the second section where the driven vehicle 7 is stopped. It will change.

（回転伝達機構１０の動作）
図１０、図１１および図１２を参照して、駆動車６の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷによって、従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転させた後、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させる動作を説明する。図１０は、図５に示す従動車７を第２軸線Ｌ２周り一方側Ｌ２ＣＷに回転させる様子を示す説明図である。図１１は、図５に示す従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させる様子を示す説明図である。図１２は、図５に示す駆動車６の角度位置とバッフル４の開度との関係を示す説明図であり、図１２には、バッフル４の開度を実線で示し、位置検出器９のスイッチ９２からの出力の変化を一点鎖線で示してある。また、図１０および図１１において、駆動車６と従動車７との接触部分は、太線や黒丸で示してある。 (Operation of rotation transmission mechanism 10)
With reference to FIGS. 10, 11 and 12, the driven vehicle 7 is rotated to one side L2CW around the second axis L2 by the one-sided L1CCW around the first axis L1 of the driving vehicle 6, and then the driven vehicle 7 The operation of rotating the second axis L2 around the second axis L2 to the other side L2CCW will be described. FIG. 10 is an explanatory view showing how the driven vehicle 7 shown in FIG. 5 is rotated around the second axis L2 to one side L2CW. FIG. 11 is an explanatory view showing how the driven vehicle 7 shown in FIG. 5 is rotated to the other side L2CCW around the second axis L2. FIG. 12 is an explanatory view showing the relationship between the angular position of the drive vehicle 6 shown in FIG. 5 and the opening degree of the baffle 4, and FIG. 12 shows the opening degree of the baffle 4 with a solid line of the position detector 9. The change in the output from the switch 92 is shown by the alternate long and short dash line. Further, in FIGS. 10 and 11, the contact portion between the driving vehicle 6 and the driven vehicle 7 is indicated by a thick line or a black circle.

図１０（ａ）には、バッフル４が閉姿勢にある状態が示されており、従動車７が第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに回転した後、停止している状態にある。この状態で、バッフル４は、図４等に示す付勢部材８によって閉方向に付勢されているが、バッフル４等に対して設けられたストッパによって、これ以上、バッフル４が閉姿勢に回転しないようになっている。 FIG. 10A shows a state in which the baffle 4 is in the closed posture, and the driven vehicle 7 is in a stopped state after rotating to the most opposite side L2CCW around the second axis L2. In this state, the baffle 4 is urged in the closing direction by the urging member 8 shown in FIG. 4 and the like, but the baffle 4 is further rotated to the closed posture by the stopper provided for the baffle 4 and the like. It is designed not to be done.

この状態から、図３に示すモータ５０が作動して、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷに回転しても、図１０（ｂ）に示すように、駆動車６の第４駆動歯６６４が従動車７の第４従動歯７６４に当接するまでの区間（図１２に示す区間ａ）では、従動車７およびバッフル４は停止した状態にある。 From this state, even if the motor 50 shown in FIG. 3 operates and the driving vehicle 6 rotates around the first axis L1 to one side L1CCW, as shown in FIG. 10B, the fourth driving vehicle 6 In the section until the drive tooth 664 comes into contact with the fourth driven tooth 764 of the driven vehicle 7 (section a shown in FIG. 12), the driven vehicle 7 and the baffle 4 are in a stopped state.

そして、駆動車６の第４駆動歯６６４が従動車７の第４従動歯７６４に当接すると、従動車７は、付勢部材８の付勢力に抗して第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転し始める。従って、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）に回転する。次に、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、図１０（ｃ）に示すように、駆動車６の第３駆動歯６６３が従動車７の第３従動歯７６３に当接し、従動車７は、付勢部材８の付勢力に抗して第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転する。従って、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）にさらに回転する。次に、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、図１０（ｄ）に示すように、駆動車６の第２駆動歯６６２が従動車７の第２従動歯７６２に当接し、従動車７は、付勢部材８の付勢力に抗して第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転する。従って、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）にさらに回転する。次に、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、図１０（ｅ）に示すように、駆動車６の第１駆動歯６６１が従動車７の第１従動歯７６１に当接し、従動車７は、付勢部材８の付勢力に抗して第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転する。従って、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）にさらに回転する。そして、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、図１０（ｆ）に示すように、駆動車６の第１駆動歯６６１の歯先が従動車７の第１従動歯７６１の歯先に乗り上げるまで、従動車７が付勢部材８の付勢力に抗して第２軸線Ｌ２周りの
一方側Ｌ２ＣＷに回転し、バッフル４が開姿勢となる。 Then, when the fourth drive tooth 664 of the drive vehicle 6 comes into contact with the fourth driven tooth 764 of the driven vehicle 7, the driven vehicle 7 opposes the urging force of the urging member 8 and causes one side around the second axis L2. It starts to rotate to L2CW. Therefore, the baffle 4 rotates in one side LCW (opening direction) around the rotation center axis L. Next, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, as shown in FIG. 10C, the third driving tooth 663 of the driving vehicle 6 becomes the third driven tooth 763 of the driven vehicle 7. The driven vehicle 7 rotates against the urging force of the urging member 8 to one side L2CW around the second axis L2. Therefore, the baffle 4 further rotates in the one-sided LCW (opening direction) around the rotation center axis L. Next, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, as shown in FIG. 10D, the second driving tooth 662 of the driving vehicle 6 becomes the second driven tooth 762 of the driven vehicle 7. The driven vehicle 7 rotates against the urging force of the urging member 8 to one side L2CW around the second axis L2. Therefore, the baffle 4 further rotates in the one-sided LCW (opening direction) around the rotation center axis L. Next, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, as shown in FIG. 10 (e), the first driving tooth 661 of the driving vehicle 6 becomes the first driven tooth 761 of the driven vehicle 7. The driven vehicle 7 rotates against the urging force of the urging member 8 to one side L2CW around the second axis L2. Therefore, the baffle 4 further rotates in the one-sided LCW (opening direction) around the rotation center axis L. Then, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, as shown in FIG. 10 (f), the tooth tips of the first driving teeth 661 of the driving vehicle 6 are the first driven vehicles of the driven vehicle 7. The driven vehicle 7 rotates to one side L2CW around the second axis L2 against the urging force of the urging member 8 until it rides on the tip of the tooth 761, and the baffle 4 is in the open posture.

次に、図１１（ａ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷに回転すると、駆動車６の第１駆動歯６６１と従動車７の第１従動歯７６１との係合が解除されるので、従動車７は、図４等に示す付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転しようとする。但し、第１従動歯７６１が第１カム面６７１に当接しているため、従動車７が第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転することが阻止され、第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷで停止した状態が維持される（図１２に示す区間ｂ）。従って、バッフル４も開姿勢のまま停止している。 Next, as shown in FIG. 11A, when the driving vehicle 6 rotates around the first axis L1 to one side L1CCW, the first driving tooth 661 of the driving vehicle 6 and the first driven tooth 761 of the driven vehicle 7 The driven vehicle 7 tries to rotate to the other side L2CCW around the second axis L2 by the urging force of the urging member 8 shown in FIG. 4 or the like. However, since the first driven tooth 761 is in contact with the first cam surface 671, the driven vehicle 7 is prevented from rotating to the other side L2CCW around the second axis L2, and the most one side around the second axis L2. The state of being stopped at L2CW is maintained (section b shown in FIG. 12). Therefore, the baffle 4 is also stopped in the open posture.

そして、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転しても、第１従動歯７６１が、第１カム面６７１の第１軸線Ｌ１周りの他方側Ｌ１ＣＷの部分で第１カム面６７１が縮径している部分に到達するまでは、従動車７およびバッフル４は停止している。そして、停止区間（図１２に示す区間ｂ）の途中で、図４に示す位置検出器９では、回転レバー９１の第１当接部９１３がセンサ用カム面６３０の大径部６３２から縮径部６３５を通って小径部６３１に移動する。従って、スイッチ９２からの出力がオフからオンに切り換わる。 Then, even if the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the first driven tooth 761 is the first cam at the portion of the first cam surface 671 on the other side L1CW around the first axis L1. The driven vehicle 7 and the baffle 4 are stopped until the surface 671 reaches the reduced diameter portion. Then, in the middle of the stop section (section b shown in FIG. 12), in the position detector 9 shown in FIG. 4, the first contact portion 913 of the rotary lever 91 is reduced in diameter from the large diameter portion 632 of the sensor cam surface 630. It moves to the small diameter portion 631 through the portion 635. Therefore, the output from the switch 92 is switched from off to on.

次に、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転し、第１従動歯７６１が、第１カム面６７１の第１軸線Ｌ１周りの他方側Ｌ１ＣＷの部分で第１カム面６７１が縮径している部分に到達すると、従動車７は、図４等に示す付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し始める。従って、バッフル４は、回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転し始める。 Next, the drive vehicle 6 further rotates around the first axis L1 to one side L1CCW, and the first driven tooth 761 is a portion of the first cam surface 671 on the other side L1CW around the first axis L1 and the first cam surface. When the 671 reaches the reduced diameter portion, the driven vehicle 7 starts to rotate to the other side L2CCW around the second axis L2 by the urging force of the urging member 8 shown in FIG. 4 or the like. Therefore, the baffle 4 starts to rotate in the other side LCCW (closed direction) around the rotation center axis L.

次に、図１１（ｂ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７が付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第１従動歯７６１が第１カム面６７１に接触した状態で、第２従動歯７６２が第２カム面６７２に接触する。次に、図１１（ｃ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第２従動歯７６２が第２カム面６７２を摺動する。 Next, as shown in FIG. 11B, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is further rotated around the first axis L1 to the other side around the second axis L2 by the urging force of the urging member 8. It rotates to the side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the second driven tooth 762 comes into contact with the second cam surface 672 while the first driven tooth 761 is in contact with the first cam surface 671. Next, as shown in FIG. 11C, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is moved around the second axis L2 by the urging force of the urging member 8. It rotates to the other side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the second driven tooth 762 slides on the second cam surface 672.

次に、図１１（ｄ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７が付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第２従動歯７６２が第２カム面６７２に接触した状態で、第３従動歯７６３が第３カム面６７３に接触する。次に、図１１（ｅ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第３従動歯７６３が第３カム面６７３を摺動する。 Next, as shown in FIG. 11D, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is further rotated around the first axis L1 to the other side around the second axis L2 by the urging force of the urging member 8. It rotates to the side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the third driven tooth 763 comes into contact with the third cam surface 673 while the second driven tooth 762 is in contact with the second cam surface 672. Next, as shown in FIG. 11 (e), when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is moved around the second axis L2 by the urging force of the urging member 8. It rotates to the other side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the third driven tooth 763 slides on the third cam surface 673.

次に、図１１（ｆ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７が付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第３従動歯７６３が第３カム面６７３に接触した状態で、第４従動歯７６４が第４カム面６７４に接触する。次に、図１１（ｇ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７は、付勢部材８の付勢力に
よって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第４従動歯７６４が第４カム面６７４を摺動する。 Next, as shown in FIG. 11F, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is further rotated around the first axis L1 to the other side around the second axis L2 by the urging force of the urging member 8. It rotates to the side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the fourth driven tooth 764 comes into contact with the fourth cam surface 674 while the third driven tooth 763 is in contact with the third cam surface 673. Next, as shown in FIG. 11 (g), when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is moved around the second axis L2 by the urging force of the urging member 8. It rotates to the other side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the fourth driven tooth 764 slides on the fourth cam surface 674.

次に、図１１（ｈ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７が付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、第４従動歯７６４が第４カム面６７４に接触した状態で、最終従動歯７６５が最終のカム面６７５に接触する。次に、図１１（ｉ）に示すように、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転する。その際、最終従動歯７６５が最終のカム面６７５を摺動する。 Next, as shown in FIG. 11H, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is further rotated around the first axis L1 to the other side around the second axis L2 by the urging force of the urging member 8. It rotates to the side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the final driven tooth 765 comes into contact with the final cam surface 675 while the fourth driven tooth 764 is in contact with the fourth cam surface 674. Next, as shown in FIG. 11 (i), when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 is moved around the second axis L2 by the urging force of the urging member 8. It rotates to the other side L2CCW, and the baffle 4 rotates in the other side LCCW (closed direction) around the rotation center axis L. At that time, the final driven tooth 765 slides on the final cam surface 675.

そして、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、従動車７は、最終従動歯７６５が最終のカム面６７５を外れるまで第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、その後、停止する。従って、バッフル４は閉姿勢の状態で停止する。その間、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転しても、図１０（ｂ）に示すように、第４駆動歯６６４が第４従動歯７６４に当接するまでは、従動車７およびバッフル４は停止している（図１２に示す区間ａ）。そして、停止区間の途中で、図４に示す位置検出器９に用いた回転レバー９１の第１当接部９１３がセンサ用カム面６３０の小径部６３１から拡径部６３４を通って大径部６３２に移動する。従って、スイッチ９２からの出力は、オンからオフに切り換わる。 Then, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 rotates to the other side L2CCW around the second axis L2 until the final driven tooth 765 deviates from the final cam surface 675. , Then stop. Therefore, the baffle 4 stops in the closed posture. During that time, even if the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, as shown in FIG. 10B, the driving vehicle 6 is driven until the fourth driving tooth 664 comes into contact with the fourth driven tooth 764. The car 7 and the baffle 4 are stopped (section a shown in FIG. 12). Then, in the middle of the stop section, the first contact portion 913 of the rotary lever 91 used for the position detector 9 shown in FIG. 4 passes from the small diameter portion 631 of the sensor cam surface 630 to the large diameter portion 634 to the large diameter portion. Move to 632. Therefore, the output from the switch 92 switches from on to off.

以降、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、上記の動作が繰り返し行われる。 After that, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the above operation is repeated.

（本形態の主な効果）
以上説明したように、本形態の回転伝達機構１０およびダンパ装置１では、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転すると、駆動歯６６が従動歯７６を介して従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに駆動し、その後、駆動歯６６と従動歯７６との噛み合いが解除されると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する。その際、従動車７は、駆動車６に設けられたカム面形成部６７０を摺動する。従って、駆動車６の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷのみに回転させた場合でも、従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転駆動することができるとともに、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させることができる。それ故、モータ５０の制御回路等の構成を簡素化することができる。また、モータ５０として、一方方向にのみ回転する安価なモータを用いることができる。 (Main effect of this form)
As described above, in the rotation transmission mechanism 10 and the damper device 1 of the present embodiment, when the driving vehicle 6 rotates to one side L1CCW around the first axis L1, the driving teeth 66 move the driven vehicle 7 via the driven teeth 76. When the drive is driven to one side L2CW around the second axis L2 and then the engagement between the drive tooth 66 and the driven tooth 76 is released, the driven vehicle 7 is driven around the second axis L2 by the urging force of the urging member 8. It rotates to the other side L2CCW. At that time, the driven vehicle 7 slides on the cam surface forming portion 670 provided on the driving vehicle 6. Therefore, even when the driven vehicle 6 is rotated only on one side L1CCW around the first axis L1, the driven vehicle 7 can be rotationally driven to one side L2CW around the second axis L2, and the driven vehicle 7 can be driven to the first side. It can be rotated to the other side L2CCW around the two-axis line L2. Therefore, the configuration of the control circuit and the like of the motor 50 can be simplified. Further, as the motor 50, an inexpensive motor that rotates only in one direction can be used.

また、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させる際には、付勢部材８の付勢力を利用するが、その際には、従動車７が駆動車６のカム面形成部６７０を摺動する。このため、従動車７が第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する際の速度等を制御することができる。 Further, when rotating the driven vehicle 7 to the other side L2CCW around the second axis L2, the urging force of the urging member 8 is used. At that time, the driven vehicle 7 forms the cam surface of the driving vehicle 6. The portion 670 is slid. Therefore, it is possible to control the speed or the like when the driven vehicle 7 rotates to the other side L2CCW around the second axis L2.

さらに、複数の駆動歯６６および複数の従動歯７６が各々、軸線方向で異なる位置に設けられているため、予定通りの組み合わせで駆動歯６６と従動歯７６とを噛み合わせることができる。従って、従動車７の角度位置を適正に制御することができる。しかも、第１軸線Ｌ１方向の各位置に駆動歯６６が１つずつ設けられ、第２軸線Ｌ２方向の各位置に従動歯７６が１つずつ設けられている。このため、予定通りの組み合わせで駆動歯６６と従動歯７６とを噛み合わせることができるので、従動車の角度位置をより適正に制御するこ
とができる。 Further, since the plurality of driving teeth 66 and the plurality of driven teeth 76 are provided at different positions in the axial direction, the driving teeth 66 and the driven teeth 76 can be meshed with each other in a predetermined combination. Therefore, the angular position of the driven vehicle 7 can be appropriately controlled. Moreover, one drive tooth 66 is provided at each position in the first axis L1 direction, and one driven tooth 76 is provided at each position in the second axis L2 direction. Therefore, since the driving teeth 66 and the driven teeth 76 can be meshed with each other in the expected combination, the angular position of the driven vehicle can be controlled more appropriately.

また、カム面形成部６７０には、従動車７が付勢部材８による付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する際に複数の従動歯７６が順に摺動する複数のカム面６７が第１軸線Ｌ１方向の異なる位置に設けられている。このため、付勢部材８の付勢力によって従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させる際、複数の従動歯７６が複数のカム面６７に順に摺動するので、付勢部材８の付勢力によって従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させる際、広い角度範囲にわたって、従動車７の回転速度等を制御することができる。 Further, on the cam surface forming portion 670, a plurality of cam surfaces on which a plurality of driven teeth 76 slide in order when the driven vehicle 7 rotates to the other side L2CCW around the second axis L2 by the urging force of the urging member 8. 67 are provided at different positions in the direction of the first axis L1. Therefore, when the driven vehicle 7 is rotated to the other side L2CCW around the second axis L2 by the urging force of the urging member 8, the plurality of driven teeth 76 slide in order on the plurality of cam surfaces 67, so that the urging member When the driven vehicle 7 is rotated to the other side L2CCW around the second axis L2 by the urging force of 8, the rotation speed of the driven vehicle 7 can be controlled over a wide angle range.

また、複数のカム面６７は、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷから他方側Ｌ１ＣＷに向かって外径が縮小しているため、複数の従動歯７６をスムーズに複数のカム面６７に順に摺動させることができる。 Further, since the outer diameters of the plurality of cam surfaces 67 are reduced from one side L1CCW around the first axis L1 toward the other side L1CW, the plurality of driven teeth 76 are smoothly slid onto the plurality of cam surfaces 67 in order. Can be moved.

また、駆動歯形成部６６０では、第１軸線Ｌ１方向の各位置に駆動歯６６が１つずつ設けられ、従動歯形成部７６０では、第２軸線Ｌ２方向の各位置に従動歯７６が１つずつ設けられている。このため、駆動歯６６と従動歯７６との間に異物が挟まっても、異物が容易に外れるという利点がある。 Further, in the drive tooth forming portion 660, one drive tooth 66 is provided at each position in the first axis L1 direction, and in the driven tooth forming portion 760, one driven tooth 76 is provided at each position in the second axis L2 direction. It is provided one by one. Therefore, even if a foreign matter is caught between the driving tooth 66 and the driven tooth 76, there is an advantage that the foreign matter can be easily removed.

また、複数の従動歯７６が複数のカム面６７に対して順に摺動する各区間の間では、現区間の従動歯７６がカム面６７に接しているうちに、次区間の従動歯７６がカム面６７に接し始めるため、複数の従動歯７６をスムーズに複数のカム面６７に順に摺動させることができる。従って、従動歯７６とカム面６７とが摺動する組み合わせが切り換わる際に従動車７が急速に回転する等の事態が発生しにくい。 Further, between the sections in which the plurality of driven teeth 76 slide in order with respect to the plurality of cam surfaces 67, the driven teeth 76 in the next section are in contact with the cam surface 67 while the driven teeth 76 in the current section are in contact with the cam surface 67. Since it starts to come into contact with the cam surface 67, the plurality of driven teeth 76 can be smoothly slid on the plurality of cam surfaces 67 in order. Therefore, when the combination in which the driven tooth 76 and the cam surface 67 slide is switched, the driven vehicle 7 is unlikely to rotate rapidly.

また、複数の駆動歯６６では、第１軸線Ｌ１方向の一方側Ｌ１ａに位置する駆動歯６６が第１軸線Ｌ１方向の他方側Ｌ１ｂに位置する駆動歯６６より第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置する。また、複数の従動歯７６では、第２軸線Ｌ２方向の一方側Ｌ２ａに位置する従動歯７６が第２軸線Ｌ２方向の他方側Ｌ２ｂに位置する従動歯７６より第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに位置する。また、複数のカム面６７では、第１軸線Ｌ１方向の一方側Ｌ１ａに位置するカム面６７が第１軸線Ｌ１方向の他方側Ｌ１ｂに位置するカム面６７より第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに位置する。従って、複数の駆動歯６６、複数の従動歯７６、および複数のカム面６７を階段状に形成することができるので、駆動車６および従動車７の製作が容易である。また、駆動車６と従動車７との位置関係等が軸線方向でずれても、駆動歯６６が予定外の従動歯７６に当接する等の事態が発生しにくい。 Further, in the plurality of drive teeth 66, the drive tooth 66 located on one side L1a in the first axis L1 direction is the other side L1CW around the first axis L1 from the drive tooth 66 located on the other side L1b in the first axis L1 direction. Located in. Further, in the plurality of driven teeth 76, the driven tooth 76 located on one side L2a in the second axis L2 direction is the other side L2CCW around the second axis L2 from the driven tooth 76 located on the other side L2b in the second axis L2 direction. Located in. Further, in the plurality of cam surfaces 67, the cam surface 67 located on one side L1a in the first axis L1 direction is one side L1CCW around the first axis L1 from the cam surface 67 located on the other side L1b in the first axis L1 direction. Located in. Therefore, since the plurality of driving teeth 66, the plurality of driven teeth 76, and the plurality of cam surfaces 67 can be formed in a stepped manner, the driving vehicle 6 and the driven vehicle 7 can be easily manufactured. Further, even if the positional relationship between the driving vehicle 6 and the driven vehicle 7 deviates in the axial direction, a situation such as the driving tooth 66 coming into contact with the driven tooth 76 that is not planned is unlikely to occur.

また、従動歯形成部７６０には、駆動歯６６が当接しない最終従動歯７６５が、複数の従動歯７６より第２軸線Ｌ２周りの一方側Ｌ２ＣＷ、かつ、複数の従動歯７６よりも第２軸線Ｌ２方向の他方側Ｌ２ｂに設けられ、カム面形成部６７０には、最終従動歯７６５が当接する最終のカム面６７５が設けられている。しかも、複数の従動歯７６の各ピッチが等しいが、複数の従動歯７６のうち、第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに位置する従動歯７６と最終従動歯７６５とのピッチは、複数の従動歯７６のピッチより広い。このため、従動歯７６がカム面６７に摺動する状態から最終従動歯７６５が最終のカム面６７５に摺動する状態への切り替えをスムーズに行うことができるので、従動車７が急速に回転する等の事態が発生しにくい。 Further, the final driven tooth 765, to which the driving tooth 66 does not abut on the driven tooth forming portion 760, is one side L2CW around the second axis L2 from the plurality of driven teeth 76, and is second than the plurality of driven teeth 76. It is provided on the other side L2b in the axis L2 direction, and the cam surface forming portion 670 is provided with a final cam surface 675 to which the final driven tooth 765 abuts. Moreover, although the pitches of the plurality of driven teeth 76 are the same, the pitches of the driven tooth 76 and the final driven tooth 765 located on the most one side L2CW around the second axis L2 among the plurality of driven teeth 76 are a plurality of pitches. Wider than the pitch of the driven tooth 76. Therefore, it is possible to smoothly switch from the state in which the driven tooth 76 slides on the cam surface 67 to the state in which the final driven tooth 765 slides on the final cam surface 675, so that the driven vehicle 7 rotates rapidly. It is unlikely that a situation such as

また、位置検出器９は、従動車７が第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに回転した後、停止している区間（図１２に示す区間ｂ）の途中位置でスイッチ９２からの出力が切り換わるとともに、従動車７が第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに回転した後、
停止している区間（図１２に示す区間ａ）の途中位置でスイッチ９２からの出力が切り換わる。このため、駆動車６と回転レバー９１との位置関係が多少ずれても、従動車７が停止している状態をスイッチ９２からの出力によって確実に監視することができる。 Further, in the position detector 9, the output from the switch 92 is output from the switch 92 at an intermediate position in the stopped section (section b shown in FIG. 12) after the driven vehicle 7 has rotated to the most one side L2CW around the second axis L2. After switching, the driven vehicle 7 rotates to the farthest side L2CCW around the second axis L2.
The output from the switch 92 is switched at an intermediate position of the stopped section (section a shown in FIG. 12). Therefore, even if the positional relationship between the driving vehicle 6 and the rotary lever 91 is slightly deviated, the state in which the driven vehicle 7 is stopped can be reliably monitored by the output from the switch 92.

（第１変形例）
図１３は、第１変形例の駆動車６および従動車７を示す説明図である。上記実施の形態では、図９を参照して説明したように、複数のカム面６７はいずれも、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部が第１軸線Ｌ１周りの他方側Ｌ１ＣＷで隣り合うカム面６７より径方向外側に位置している。但し、図１３に示すように、複数のカム面６７には、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部が第１軸線Ｌ１周りの他方側Ｌ１ＣＷで隣り合うカム面６７の外縁と重なったカム面が含まれている態様を採用してもよい。より具体的には、図１３に示す駆動車６では、第４カム面６７４の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷで隣り合う第３カム面６７３の外縁と重なっており、最終のカム面６７５の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷで隣り合う第４カム面６７４の外縁と重なっている。かかる態様によれば、カム面形成部６７０の形成が容易であるという利点がある。 (First modification)
FIG. 13 is an explanatory view showing a driving vehicle 6 and a driven vehicle 7 of the first modification. In the above embodiment, as described with reference to FIG. 9, in each of the plurality of cam surfaces 67, the ends of one side L1CCW around the first axis L1 are adjacent to each other by the other side L1CW around the first axis L1. It is located radially outside the matching cam surface 67. However, as shown in FIG. 13, on the plurality of cam surfaces 67, the end portion of one side L1CCW around the first axis L1 overlaps with the outer edge of the adjacent cam surfaces 67 on the other side L1CW around the first axis L1. An embodiment in which a cam surface is included may be adopted. More specifically, in the drive vehicle 6 shown in FIG. 13, the end of one side L1CCW around the first axis L1 of the fourth cam surface 674 is adjacent to the third cam surface on one side L1CCW around the first axis L1. It overlaps with the outer edge of 673, and the end of one side L1CCW around the first axis L1 of the final cam surface 675 overlaps with the outer edge of the adjacent fourth cam surface 674 at one side L1CCW around the first axis L1. .. According to such an aspect, there is an advantage that the cam surface forming portion 670 can be easily formed.

（第２変形例）
図５〜図９に示した形態（以下、上記形態という）においては、駆動車６は、第１軸線Ｌ１方向の最も他方側Ｌ１ｂに形成された第４駆動歯６６４（最終駆動歯）は、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷを向く歯面が駆動歯形成部６６０の外周面とＲ状に繋がっている（図６、図９参照）。このため、複数の駆動歯６６のピッチを計測しようとしても、第４駆動歯６６４の歯先の角度位置を正確に計測することが難しいため、正確なピッチを計測することが難しい。同様に、第１軸線Ｌ１方向の最も一方側Ｌ１ａに形成された第１従動歯７６１は、第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷを向く歯面が従動歯形成部７６０の外周面とＲ状に繋がっている（図５、図９参照）。このため、複数の従動歯７６の歯部の形状を計測しようとしても、第１従動歯７６１の歯先の角度位置を正確に計測することが難しいため、正確な歯部の形状を計測することが難しい。そのため、従動歯７６の歯先の正確な位置を計測することが難しく、従動歯７６の正確なピッチを計測することが難しい。 (Second modification)
In the form shown in FIGS. 5 to 9 (hereinafter referred to as the above-mentioned form), in the drive vehicle 6, the fourth drive tooth 664 (final drive tooth) formed on the most opposite side L1b in the direction of the first axis L1 is The tooth surface facing the one side L1CCW around the first axis L1 is connected to the outer peripheral surface of the drive tooth forming portion 660 in an R shape (see FIGS. 6 and 9). Therefore, even if an attempt is made to measure the pitch of a plurality of driving teeth 66, it is difficult to accurately measure the angular position of the tooth tip of the fourth driving tooth 664, so that it is difficult to accurately measure the pitch. Similarly, in the first driven tooth 761 formed on the most one side L1a in the direction of the first axis L1, the tooth surface facing the other side L2CCW around the second axis L2 is R-shaped with the outer peripheral surface of the driven tooth forming portion 760. They are connected (see FIGS. 5 and 9). Therefore, even if an attempt is made to measure the shape of the teeth of a plurality of driven teeth 76, it is difficult to accurately measure the angular position of the tooth tip of the first driven tooth 761, so that the shape of the tooth should be measured accurately. Is difficult. Therefore, it is difficult to measure the accurate position of the tip of the driven tooth 76, and it is difficult to measure the accurate pitch of the driven tooth 76.

第２変形例では、このような点を改善するため、駆動車６には、第４駆動歯６６４の歯部の形状を正確に計測するための第１段部６８（図１５、図１７）が形成されている。また、従動車７には、第１従動歯７６１の歯部の形状を正確に計測するための第２段部７８（図１４、図１６）が形成されている。 In the second modification, in order to improve such a point, the drive vehicle 6 is provided with the first stage portion 68 (FIGS. 15 and 17) for accurately measuring the shape of the tooth portion of the fourth drive tooth 664. Is formed. Further, the driven vehicle 7 is formed with a second stage portion 78 (FIGS. 14 and 16) for accurately measuring the shape of the tooth portion of the first driven tooth 761.

（第１段部）
図１４は、第２変形例の駆動車６および従動車７を一方側からみた斜視図であり、図１５は、第２変形例の駆動車６および従動車７を他方側からみた斜視図である。また、図１６は、第２変形例の従動車７を従動歯形成部７６０の側から見た斜視図であり、図１７は、第２変形例の駆動車６の平面図である。図１５に示すように、第２変形例の駆動車６は、第１胴部６２の周方向の一部に駆動歯形成部６６０が形成されており、駆動歯形成部６６０には、４つの駆動歯６６および駆動歯ピッチ計測用の第１段部６８が第１軸線Ｌ１方向に沿って多段に形成されている。４つの駆動歯６６（第１駆動歯６６１、第２駆動歯６６２、第３駆動歯６６３、第４駆動歯６６４）および第１段部６８は、この順で第１軸線Ｌ１周りに配置されている。 (1st stage)
FIG. 14 is a perspective view of the driving vehicle 6 and the driven vehicle 7 of the second modified example as viewed from one side, and FIG. 15 is a perspective view of the driven vehicle 6 and the driven vehicle 7 of the second modified example as viewed from the other side. is there. Further, FIG. 16 is a perspective view of the driven vehicle 7 of the second modified example as viewed from the side of the driven tooth forming portion 760, and FIG. 17 is a plan view of the driven vehicle 6 of the second modified example. As shown in FIG. 15, in the drive vehicle 6 of the second modification, the drive tooth forming portion 660 is formed in a part of the first body portion 62 in the circumferential direction, and the drive tooth forming portion 660 has four drive tooth forming portions 660. The drive teeth 66 and the first step portion 68 for measuring the drive tooth pitch are formed in multiple steps along the first axis L1 direction. The four drive teeth 66 (first drive tooth 661, second drive tooth 662, third drive tooth 663, fourth drive tooth 664) and the first step portion 68 are arranged around the first axis L1 in this order. There is.

駆動歯ピッチ計測用の第１段部６８は、第１軸線Ｌ１周りの最も他方側Ｌ１ｂに位置する最終駆動歯である第４駆動歯６６４の歯面６６８と周方向に隣り合う位置に形成されており、第４駆動歯６６４の歯面６６８の第１軸線Ｌ１方向の途中位置から第１軸線Ｌ１周
りの一方側Ｌ１ＣＣＷに突出している。４つの駆動歯６６の歯面の径方向外側の端部（歯先）から第１軸線Ｌ１周りの他方側Ｌ１ＣＷは、周方向に連続して延在する円周面６６９である。この円周面６６９は、第４駆動歯６６４の第１軸線Ｌ１方向の他方側Ｌ１ｂまで延びており、第１段部６８の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面の径方向外側の端部まで連続して延在する。すなわち、第２変形例の駆動車６では、４つの駆動歯６６および第１段部６８の径方向外側は、第１軸線Ｌ１を中心とする連続した円周面６６９となっている。円周面６６９は、駆動歯形成部６６０の外周面であり、４つの駆動歯６６の歯面と交差する。 The first step portion 68 for measuring the drive tooth pitch is formed at a position adjacent to the tooth surface 668 of the fourth drive tooth 664, which is the final drive tooth located on the most opposite side L1b around the first axis L1, in the circumferential direction. The tooth surface 668 of the fourth drive tooth 664 projects from an intermediate position in the direction of the first axis L1 to one side L1CCW around the first axis L1. The other side L1CW around the first axis L1 from the radial outer end (tooth tip) of the tooth surface of the four drive teeth 66 is a circumferential surface 669 extending continuously in the circumferential direction. The circumferential surface 669 extends to the other side L1b of the fourth drive tooth 664 in the first axis L1 direction, and is the radial outer end of the surface of the one side L1CCW around the first axis L1 of the first step portion 68. It extends continuously to the part. That is, in the drive vehicle 6 of the second modification, the radial outer sides of the four drive teeth 66 and the first step portion 68 are continuous circumferential surfaces 669 centered on the first axis L1. The circumferential surface 669 is the outer peripheral surface of the drive tooth forming portion 660 and intersects the tooth surfaces of the four drive teeth 66.

第２変形例の駆動車６は、第４駆動歯６６４と周方向に隣り合う位置に第１段部６８を形成したことにより、駆動歯形成部６６０には、第４駆動歯６６４の歯面６６８を周方向にまたぐ範囲で円周面６６９が形成されている。このような範囲に円周面６６９を形成したことにより、第４駆動歯６６４の歯面６６８の径方向外側の端部（歯先）の角度位置は、他の３箇所の駆動歯６６の歯先と同様に、円周面６６９と歯面６６８とが交差する交点Ｐ１（図１５、図１７参照）の位置として明確に測定することができるようになっている。従って、第２変形例では、全ての駆動歯６６の歯先の位置を精度良く測定できる。従って、駆動歯６６のピッチを精度良く測定することができる。なお、第１段部６８の外周面は、第１軸線Ｌ１を中心とする円周面でなくてもよく、第４駆動歯６６４（最終駆動歯）の歯面６６８の径方向外側の端部（歯先）と交差する面であればよい。例えば、第１段部６８の外周面は、円周面６６９の接線方向に延びる面であってもよい。 In the drive vehicle 6 of the second modification, the first step portion 68 is formed at a position adjacent to the fourth drive tooth 664 in the circumferential direction, so that the drive tooth forming portion 660 has a tooth surface of the fourth drive tooth 664. A circumferential surface 669 is formed in a range straddling 668 in the circumferential direction. By forming the circumferential surface 669 in such a range, the angular position of the radial outer end (tooth tip) of the tooth surface 668 of the fourth drive tooth 664 is the tooth of the other three drive teeth 66. Similar to the above, it can be clearly measured as the position of the intersection P1 (see FIGS. 15 and 17) where the circumferential surface 669 and the tooth surface 668 intersect. Therefore, in the second modification, the positions of the tooth tips of all the driving teeth 66 can be measured with high accuracy. Therefore, the pitch of the drive teeth 66 can be measured with high accuracy. The outer peripheral surface of the first step portion 68 does not have to be a circumferential surface centered on the first axis L1, and is an end portion on the radial outer side of the tooth surface 668 of the fourth drive tooth 664 (final drive tooth). Any surface that intersects (tooth tip) may be used. For example, the outer peripheral surface of the first step portion 68 may be a surface extending in the tangential direction of the circumferential surface 669.

また、第１段部６８は円盤部６１から第１軸線Ｌ１方向の一方側Ｌ１ａに突出する凸部であるが、円盤部６１を第１軸線Ｌ１方向の他方側Ｌ１ｂに窪ませて、駆動歯ピッチ計測用の第１凹部を形成しても良い。この場合、凹部の径方向外側の内周面を円周面６６９と同一径の円周面とすれば、第１凹部の内周面は第４駆動歯６６４の歯面６６８と交差する面となる。従って、第１凹部の内周面と歯面６６８との交点の位置から第４駆動歯６６４の歯先の角度位置を精度良く測定できる。従って、駆動歯６６のピッチを精度良く測定することができる。なお、この場合においても、第１凹部の内周面は、歯面６６８の径方向外側の端部（歯先）と交差する面であればよく、第１軸線Ｌ１を中心とする円周面でなくてもよい。 Further, the first step portion 68 is a convex portion protruding from the disk portion 61 to one side L1a in the first axis L1 direction, but the disk portion 61 is recessed in the other side L1b in the first axis L1 direction to drive teeth. The first recess for pitch measurement may be formed. In this case, if the inner peripheral surface on the outer side in the radial direction of the recess is the circumferential surface having the same diameter as the circumferential surface 669, the inner peripheral surface of the first recess is the surface intersecting the tooth surface 668 of the fourth drive tooth 664. Become. Therefore, the angular position of the tooth tip of the fourth drive tooth 664 can be accurately measured from the position of the intersection of the inner peripheral surface of the first recess and the tooth surface 668. Therefore, the pitch of the drive teeth 66 can be measured with high accuracy. Even in this case, the inner peripheral surface of the first recess may be a surface that intersects the radial outer end (tooth tip) of the tooth surface 668, and is a circumferential surface centered on the first axis L1. It does not have to be.

（第２段部）
図１５、図１６に示すように、第２変形例の従動車７には従動歯形成部７６０が形成されており、従動歯形成部７６０には、複数の従動歯７６および最終従動歯７６５に加えて、従動歯ピッチ計測用の第２段部７８が形成されている。従動歯形成部７６０には、最終従動歯７６５、４つの従動歯７６、および第２段部７８が第２軸線Ｌ２方向に沿って多段に形成されている。４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、第４従動歯７６４）および最終従動歯７６５と、第２段部７８は、この順で第２軸線Ｌ２周りに配置されている。従動車７には、従動歯形成部７６０の径方向外側の部分を第１従動歯７６１より第２軸線Ｌ２方向の一方側に延長した延長部７６６が形成されている。第２段部７８は、延長部７６６の第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷの端部に設けられている。 (2nd stage)
As shown in FIGS. 15 and 16, a driven tooth forming portion 760 is formed in the driven vehicle 7 of the second modification, and the driven tooth forming portion 760 has a plurality of driven teeth 76 and a final driven tooth 765. In addition, a second step portion 78 for measuring the driven tooth pitch is formed. In the driven tooth forming portion 760, the final driven tooth 765, the four driven teeth 76, and the second step portion 78 are formed in multiple stages along the second axis L2 direction. The four driven teeth 76 (first driven tooth 761, the second driven tooth 762, the third driven tooth 763, the fourth driven tooth 764), the final driven tooth 765, and the second step 78 are in this order on the second axis. It is arranged around L2. The driven vehicle 7 is formed with an extension portion 766 in which the radial outer portion of the driven tooth forming portion 760 is extended from the first driven tooth 761 to one side in the second axis L2 direction. The second step portion 78 is provided at the end of the other side L2CCW around the second axis L2 of the extension portion 766.

従動歯ピッチ計測用の第２段部７８は、第２軸線Ｌ２回りの最も他方側Ｌ２ＣＣＷに位置する第１従動歯７６１の歯面７６８と周方向に隣り合う位置に形成されており、第１従動歯７６１の歯面７６８に対して第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに突出している。４つの従動歯７６の歯面の径方向外側の端部（歯先）から第２軸線Ｌ２周りの一方側Ｌ２ＣＷは、周方向に連続して延在する円周面７６９である。また、この円周面７６９は、第１従動歯７６１の第２軸線Ｌ２方向の一方側Ｌ２ａに設けられた延長部７６６まで延びており、第２段部７８まで連続して延在する。すなわち、第２変形例の従動車７では、４つ
の従動歯７６、最終従動歯７６５、および第２段部７８の径方向外側は、第２軸線Ｌ２を中心とする連続した円周面７６９となっている。円周面７６９は、従動歯形成部７６０の径方向外側の外周面であり、４つの従動歯７６および最終従動歯７６５の歯面と交差する。 The second step portion 78 for measuring the driven tooth pitch is formed at a position adjacent to the tooth surface 768 of the first driven tooth 761 located on the most opposite side L2CCW around the second axis L2 in the circumferential direction. It projects to the other side L2CCW around the second axis L2 with respect to the tooth surface 768 of the driven tooth 761. One side L2CW around the second axis L2 from the radial outer end (tooth tip) of the tooth surface of the four driven teeth 76 is a circumferential surface 769 that extends continuously in the circumferential direction. Further, the circumferential surface 769 extends to an extension portion 766 provided on one side L2a of the first driven tooth 761 in the second axis L2 direction, and continuously extends to the second step portion 78. That is, in the driven vehicle 7 of the second modification, the four driven teeth 76, the final driven tooth 765, and the radial outer side of the second step portion 78 have a continuous circumferential surface 769 centered on the second axis L2. It has become. The circumferential surface 769 is a radial outer peripheral surface of the driven tooth forming portion 760 and intersects the tooth surfaces of the four driven teeth 76 and the final driven tooth 765.

第２変形例の従動車７は、第１従動歯７６１と周方向に隣り合う位置に第２段部７８を形成したことにより、従動歯形成部７６０には、第１従動歯７６１の歯面７６８を周方向にまたぐ範囲で円周面７６９が形成されている。このような範囲に円周面７６９を形成したことにより、第１従動歯７６１の歯面７６８の径方向外側の端部（歯先）の角度位置は、他の３箇所の従動歯７６および最終従動歯７６５の歯先と同様に、円周面７６９と歯面７６８とが交差する交点Ｐ２（図１６参照）の位置として明確に測定することができるようになっている。従って、第２変形例では、全ての従動歯７６の歯先の位置を精度良く測定できる。従って、従動歯７６のピッチを精度良く測定することができる。なお、第２段部７８の外周面は、第２軸線Ｌ２を中心とする円周面でなくてもよく、第１従動歯７６１の歯面７６８の径方向外側の端部（歯先）と交差する面であればよい。例えば、第２段部７８の外周面は、円周面７６９の接線方向に延びる面であってもよい。 In the driven vehicle 7 of the second modification, the second step portion 78 is formed at a position adjacent to the first driven tooth 761 in the circumferential direction, so that the driven tooth forming portion 760 has a tooth surface of the first driven tooth 761. A circumferential surface 769 is formed in a range straddling 768 in the circumferential direction. By forming the circumferential surface 769 in such a range, the angular position of the radial outer end (tooth tip) of the tooth surface 768 of the first driven tooth 761 is the other three driven teeth 76 and the final. Similar to the tooth tip of the driven tooth 765, it can be clearly measured as the position of the intersection P2 (see FIG. 16) where the circumferential surface 769 and the tooth surface 768 intersect. Therefore, in the second modification, the positions of the tooth tips of all the driven teeth 76 can be measured with high accuracy. Therefore, the pitch of the driven tooth 76 can be measured with high accuracy. The outer peripheral surface of the second step portion 78 does not have to be a circumferential surface centered on the second axis L2, and may be a radial outer end (tooth tip) of the tooth surface 768 of the first driven tooth 761. Any surface that intersects may be used. For example, the outer peripheral surface of the second step portion 78 may be a surface extending in the tangential direction of the circumferential surface 769.

また、延長部７６６の外径を円周面７６９より大径とし、延長部７６６を第２軸線Ｌ２方向の一方側Ｌ２ａに窪ませて、従動歯ピッチ計測用の第２凹部を形成しても良い。この場合、第２凹部の径方向外側の内周面を円周面７６９と同一径の円周面とすれば、第２凹部の内周面と歯面７６８との交点の位置から第１従動歯７６１の歯先の角度位置を精度良く測定できる。従って、従動歯７６のピッチを精度良く測定することができる。なお、この場合においても、第２凹部の内周面は、歯面７６８と交差する面であればよく、第２軸線Ｌ２を中心とする円筒面でなくてもよい。 Further, even if the outer diameter of the extension portion 766 is made larger than the circumferential surface 769 and the extension portion 766 is recessed in one side L2a in the second axis L2 direction to form a second recess for measuring the driven tooth pitch. good. In this case, if the inner peripheral surface on the outer side in the radial direction of the second concave portion is a circumferential surface having the same diameter as the circumferential surface 769, the first driven action is taken from the position of the intersection of the inner peripheral surface of the second concave portion and the tooth surface 768. The angular position of the tip of the tooth 761 can be measured accurately. Therefore, the pitch of the driven tooth 76 can be measured with high accuracy. Even in this case, the inner peripheral surface of the second recess may be a surface that intersects the tooth surface 768, and may not be a cylindrical surface centered on the second axis L2.

（カム面の形状）
図１７に示すように、第２変形例の駆動車６は、図５〜図９に示した形態（上記形態）と同様に５つのカム面６７を備えている。５つのカム面６７のうち、第１カム面６７１を除く他の４つのカム面（第２カム面６７２、第３カム面６７３、第４カム面６７４、最終のカム面６７５）は、上記形態の位置よりも第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置する。また、第２カム面６７２は、上記形態よりも径方向内側に縮径した位置に設けられている。 (Cam surface shape)
As shown in FIG. 17, the drive vehicle 6 of the second modification has five cam surfaces 67 as in the form shown in FIGS. 5 to 9 (the above-mentioned form). Of the five cam surfaces 67, the other four cam surfaces (second cam surface 672, third cam surface 673, fourth cam surface 674, final cam surface 675) other than the first cam surface 671 have the above-described embodiment. It is located on the other side L1CW around the first axis L1 from the position of. Further, the second cam surface 672 is provided at a position where the diameter is reduced inward in the radial direction with respect to the above embodiment.

第２変形例では、５つのカム面６７のそれぞれは、第１軸線Ｌ１周りの他方側Ｌ１ＣＷで隣り合うカム面６７と周方向に重なり合わないカム区間６７Ａを備える。第１軸線Ｌ１回りの最も一方側Ｌ１ＣＣＷに位置する第１カム面６７１のカム区間６７１Ａは、第１軸線Ｌ１回りの最も他方側Ｌ１ＣＷに位置する最終のカム面６７５を除く他のカム面（第２カム面６７２、第３カム面６７３、第４カム面６７４）のカム区間６７２Ａ、６７３Ａ、６７４Ａよりも周方向に広い。特に、第２カム面６７２のカム区間６７２Ａが最も周方向に狭い。また、最終のカム面６７５のカム区間６７５Ａは、上記形態よりも周方向に狭い。また、第２カム面６７２の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部は、第２カム面６７２より第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置するカム面（第３カム面６７３、第４カム面６７４、最終のカム面６７５）の一方側Ｌ１ＣＣＷの端部より、径方向内側に縮径した位置にシフトしている。 In the second modification, each of the five cam surfaces 67 includes a cam section 67A that does not overlap with the adjacent cam surfaces 67 on the other side L1CW around the first axis L1 in the circumferential direction. The cam section 671A of the first cam surface 671 located on the most one side L1CCW around the first axis L1 is a cam surface other than the final cam surface 675 located on the most opposite side L1CW around the first axis L1 (first). It is wider in the circumferential direction than the cam sections 672A, 673A, and 674A of the 2 cam surface 672, the 3rd cam surface 673, and the 4th cam surface 674). In particular, the cam section 672A of the second cam surface 672 is the narrowest in the circumferential direction. Further, the cam section 675A of the final cam surface 675 is narrower in the circumferential direction than the above-described embodiment. Further, the end of one side L1CCW around the first axis L1 of the second cam surface 672 is a cam surface located on the other side L1CW around the first axis L1 from the second cam surface 672 (third cam surface 673, first. The diameter is shifted inward in the radial direction from the end of the L1CCW on one side of the four cam surface 674 and the final cam surface 675).

図１８は、第２変形例の駆動車６の角度位置とバッフル４の開度との関係を示す説明図である。図１８において、破線は図５〜図９に示した形態（上記形態）のバッフル４の開度であり、図１２のグラフと同一である。また、実線は第２変形例のバッフル４の開度を示す。第２変形例では、第１カム面６７１のカム区間６７１Ａを上記形態より長く設定したことにより、第１従動歯７６１が第１カム面６７１に摺動した状態で駆動車６が回転す
る間の駆動車６の回転角度が上記形態よりも長くなっている。その結果、バッフル４が閉じる際の閉じ始めの区間では、駆動車６の回転角度に対する従動車７の回転角度が小さい。従って、図１８に示すように、バッフル４の閉じ始めの区間では駆動車６の角度位置とバッフル４の開度との関係を示すグラフ（実線）の傾きが図１２の傾き（破線）よりも緩やかである。すなわち、バッフル４の閉じ始めの区間では、バッフル４の回転速度は上記形態より遅く、バッフル４は上記形態よりゆっくりと閉じ始めるようになっている。 FIG. 18 is an explanatory diagram showing the relationship between the angular position of the driving vehicle 6 and the opening degree of the baffle 4 in the second modification. In FIG. 18, the broken line is the opening degree of the baffle 4 in the form shown in FIGS. 5 to 9 (the above-mentioned form), which is the same as the graph in FIG. The solid line shows the opening degree of the baffle 4 of the second modification. In the second modification, the cam section 671A of the first cam surface 671 is set longer than the above embodiment, so that the driving vehicle 6 rotates while the first driven tooth 761 slides on the first cam surface 671. The rotation angle of the drive vehicle 6 is longer than that of the above embodiment. As a result, the rotation angle of the driven vehicle 7 with respect to the rotation angle of the driving vehicle 6 is small in the section at the beginning of closing when the baffle 4 is closed. Therefore, as shown in FIG. 18, in the section where the baffle 4 starts to close, the inclination of the graph (solid line) showing the relationship between the angular position of the driving vehicle 6 and the opening degree of the baffle 4 is larger than the inclination (broken line) of FIG. It is gradual. That is, in the section where the baffle 4 starts to close, the rotation speed of the baffle 4 is slower than that of the above form, and the baffle 4 starts to close more slowly than the above form.

また、第２カム面６７２の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部を上記形態より縮径した位置にシフトさせたことにより、第２従動歯７６２が第２カム面６７２に接触し始めるタイミングが上記形態より遅れ、第１従動歯７６１が第１カム面６７１から離れるタイミングが上記形態より遅れる。従って、第１従動歯７６１が第１カム面６７１に摺動した状態で駆動車６が回転する回転角度（第１カム面６７１でのダンパ対応角度）がさらに長くなるので、バッフル４の閉じ始めの区間におけるバッフル４の回転速度は、さらに遅くなっている。 Further, by shifting the end of one side L1CCW around the first axis L1 of the second cam surface 672 to a position reduced in diameter from the above embodiment, the second driven tooth 762 starts to come into contact with the second cam surface 672. The timing is delayed from the above form, and the timing at which the first driven tooth 761 separates from the first cam surface 671 is delayed from the above form. Therefore, the rotation angle at which the drive vehicle 6 rotates with the first driven tooth 761 sliding on the first cam surface 671 (the angle corresponding to the damper on the first cam surface 671) becomes longer, and the baffle 4 begins to close. The rotation speed of the baffle 4 in the section of is even slower.

第２変形例の駆動車６では、最終のカム面６７５から最終従動歯７６５が離れる際の駆動車６の回転位置は、上記形態とほぼ同じ位置である。つまり、第２従動歯７６２が第２カム面６７２に接触するタイミングは上記形態よりも遅れるものの、最終従動歯７６５が最終のカム面６７５から離れるタイミングは上記形態とほぼ同じである。従って、バッフルの閉じ始めの区間を過ぎると、そのあとは駆動車６の回転角度に対する従動車７の回転角度は上記形態より大きくなっている。つまり、バッフルの閉じ始めの区間を過ぎると、バッフル４の回転速度は上記形態より早くなっており、その結果、上記形態と同じタイミングでバッフル４が閉じ終わるようになっている。 In the driving vehicle 6 of the second modification, the rotational position of the driving vehicle 6 when the final driven tooth 765 is separated from the final cam surface 675 is substantially the same as the above-described embodiment. That is, although the timing at which the second driven tooth 762 comes into contact with the second cam surface 672 is later than that in the above embodiment, the timing at which the final driven tooth 765 leaves the final cam surface 675 is almost the same as in the above embodiment. Therefore, after the section where the baffle starts to close, the rotation angle of the driven vehicle 7 with respect to the rotation angle of the driving vehicle 6 becomes larger than that of the above-described embodiment. That is, after passing the section where the baffle starts to close, the rotation speed of the baffle 4 becomes faster than that of the above-mentioned form, and as a result, the baffle 4 finishes closing at the same timing as the above-mentioned form.

このように、第２変形例では、バッフル４の閉じ始めの区間ではバッフル４の回転速度が遅く、バッフル４の閉じ始めの区間を過ぎると、その後はバッフル４の回転速度が早くなるように構成されている。具体的には、第１カム面６７１に第１従動歯７６１が摺動する間の従動車７の回転速度が上記形態より大きい。そして、第２カム面６７２、第３カム面６７３、第４カム面６７４にそれぞれ対応する従動歯７６が摺動する間の従動車７の回転速度は、いずれも、第１カム面６７１に第１従動歯７６１が摺動する間の従動車７の回転速度より小さい。なお、駆動車６の回転角度に対する従動車７の回転速度（すなわち、バッフル４の閉じ速度）は、カム面６７の形状だけでなく、従動歯７６の形状やピッチによっても変動する。従って、上記のような回転速度の変化を実現する形態は、第２変形例の形態に限定されるものではない。例えば、従動歯７６のピッチを変更した場合には、それに対応してカム面６７の形状を適宜変更することができる。 As described above, in the second modification, the rotation speed of the baffle 4 is slow in the section where the baffle 4 starts to close, and the rotation speed of the baffle 4 becomes high after the section where the baffle 4 starts to close. Has been done. Specifically, the rotation speed of the driven vehicle 7 while the first driven tooth 761 slides on the first cam surface 671 is higher than that of the above embodiment. The rotation speed of the driven vehicle 7 while the driven teeth 76 corresponding to the second cam surface 672, the third cam surface 673, and the fourth cam surface 674 are all sliding on the first cam surface 671. 1 It is smaller than the rotation speed of the driven vehicle 7 while the driven tooth 761 slides. The rotation speed of the driven vehicle 7 with respect to the rotation angle of the driving vehicle 6 (that is, the closing speed of the baffle 4) varies not only with the shape of the cam surface 67 but also with the shape and pitch of the driven teeth 76. Therefore, the form for realizing the change in the rotation speed as described above is not limited to the form of the second modification. For example, when the pitch of the driven tooth 76 is changed, the shape of the cam surface 67 can be appropriately changed accordingly.

（駆動車および従動車の組立用目印）
図１９は第２変形例の駆動車６および従動車７を備えるバッフル駆動機構５およびカバー３の斜視図である。図１４、図１５に示すように、駆動車６の第１軸線Ｌ１方向の一方側Ｌ１ａの先端には軸部６４が形成され、従動車７の第２軸線Ｌ２方向の一方側Ｌ２ａの先端には軸部７４が形成されている。カバー３は、フレーム２の隔壁２２とＸ方向に対向する底部３１と、底部３１の外周縁から隔壁２２の側（Ｘ２方向）へ立ち上がる側壁部３２を備えており、底部３１には、軸部６４、７４を回転可能に支持する２箇所の回転支持部３３、３４が形成されている。 (Marks for assembling driving vehicles and driven vehicles)
FIG. 19 is a perspective view of the baffle drive mechanism 5 and the cover 3 including the drive vehicle 6 and the driven vehicle 7 of the second modification. As shown in FIGS. 14 and 15, a shaft portion 64 is formed at the tip of one side L1a of the driving vehicle 6 in the first axis L1 direction, and is formed at the tip of one side L2a of the driven vehicle 7 in the second axis L2 direction. The shaft portion 74 is formed. The cover 3 includes a bottom portion 31 facing the partition wall 22 of the frame 2 in the X direction, and a side wall portion 32 rising from the outer peripheral edge of the bottom portion 31 toward the partition wall 22 (X2 direction), and the bottom portion 31 has a shaft portion. Two rotational support portions 33 and 34 that rotatably support 64 and 74 are formed.

図１９に示すように、駆動車６は、第１軸線Ｌ１方向の他方側Ｌ１ｂの端部に設けられた円盤部６１が上になる姿勢でカバー３に組み付けられる。駆動車６は、円盤部６１の中央から他方側Ｌ１ｂに突出する軸部６５を備えており、軸部６５は隔壁２２に設けられた回転支持部（図示省略）に回転可能に支持される。駆動車６は、第１軸線Ｌ１周りの回転位置を組立基準位置６Ａに合わせるための第１組立用目印６９を備える。第２変形例では
、円盤部６１の他方側Ｌ１ｂの面の外周部に形成された凹部が第１組立用目印６９として用いられている。第１組立用目印６９は、周方向の１箇所に形成されている。駆動車６の組立基準位置６Ａは、図１９に示すように、第１軸線Ｌ１に対する第１組立用目印６９の位置がＺ方向の一方側Ｚ１となる位置である。駆動車６に対してＺ方向の一方側Ｚ１には、モータ５０が配置されている。すなわち、組立基準位置６Ａは、モータ５０が位置する側に第１組立用目印６９を向けた回転位置である。 As shown in FIG. 19, the drive vehicle 6 is assembled to the cover 3 with the disk portion 61 provided at the end of the other side L1b in the direction of the first axis L1 facing up. The drive vehicle 6 includes a shaft portion 65 projecting from the center of the disk portion 61 to the other side L1b, and the shaft portion 65 is rotatably supported by a rotation support portion (not shown) provided on the partition wall 22. The drive vehicle 6 includes a first assembly mark 69 for aligning the rotation position around the first axis L1 with the assembly reference position 6A. In the second modification, the recess formed on the outer peripheral portion of the surface of the other side L1b of the disk portion 61 is used as the first assembly mark 69. The first assembly mark 69 is formed at one location in the circumferential direction. As shown in FIG. 19, the assembly reference position 6A of the drive vehicle 6 is a position where the position of the first assembly mark 69 with respect to the first axis L1 is Z1 on one side in the Z direction. A motor 50 is arranged on one side Z1 in the Z direction with respect to the driving vehicle 6. That is, the assembly reference position 6A is a rotation position in which the first assembly mark 69 is directed to the side where the motor 50 is located.

従動車７は、第２軸線Ｌ２方向の他方側Ｌ２ｂの端部に設けられた軸部７５が上になる姿勢でカバー３に組み付けられる。上述したように、軸部７５の先端にはバッフル４が固定される。軸部７５の先端には、従動車７の第２軸線周りの回転位置を組立基準位置７Ａに合わせるための第２組立用目印７９が形成されている。第２変形例では、軸部７５の先端は、径方向の反対側の２箇所に平坦面７５１が形成されたＩカット形状であり、平坦面７５１が第２組立用目印７９として用いられる。なお、軸部７５の先端のＩカット形状は、バッフル４に従動車７の回転を伝達するための回り止め形状としても用いられる。従動車７の組立基準位置７Ａは、図１９に示すように、平坦面７５１（第２組立用目印７９）の向きがＺ方向と一致する位置である。ここで、平坦面７５１の向きがＺ方向と一致する回転位置は２箇所あるが、組立基準位置７Ａでは、従動歯形成部７６０が駆動車６の側に位置している。従動車７に対してＺ方向の一方側Ｚ１には、モータ５０が配置されている。すなわち、組立基準位置７Ａは、平坦面７５１に沿う方向にモータ５０が位置する回転位置である。 The driven vehicle 7 is assembled to the cover 3 with the shaft portion 75 provided at the end of the other side L2b in the second axis L2 direction facing up. As described above, the baffle 4 is fixed to the tip of the shaft portion 75. At the tip of the shaft portion 75, a second assembly mark 79 for aligning the rotation position of the driven vehicle 7 around the second axis with the assembly reference position 7A is formed. In the second modification, the tip of the shaft portion 75 has an I-cut shape in which flat surfaces 751 are formed at two locations on opposite sides in the radial direction, and the flat surface 751 is used as a second assembly mark 79. The I-cut shape at the tip of the shaft portion 75 is also used as a detent shape for transmitting the rotation of the driven vehicle 7 of the baffle 4. As shown in FIG. 19, the assembly reference position 7A of the driven vehicle 7 is a position where the direction of the flat surface 751 (second assembly mark 79) coincides with the Z direction. Here, there are two rotation positions where the direction of the flat surface 751 coincides with the Z direction, but at the assembly reference position 7A, the driven tooth forming portion 760 is located on the side of the drive vehicle 6. A motor 50 is arranged on one side Z1 in the Z direction with respect to the driven vehicle 7. That is, the assembly reference position 7A is a rotation position where the motor 50 is located in the direction along the flat surface 751.

（第２変形例の効果）
以上説明したように、第２変形例の駆動車６および従動車７を備える回転伝達機構１０およびダンパ装置１では、最終駆動歯である第４駆動歯６６４の歯面６６８と第１段部６８の外周面との交点を計測できる。従って、第４駆動歯６６４の歯部の形状を正確に計測でき、第４駆動歯６６４の歯先の位置を正確に計測できるため、駆動歯６６のピッチを正確に計測できる。また、第１従動歯７６１の歯面７６８と第２段部７８の外周面との交点を計測できる。従って、第１従動歯７６１の歯部の形状を正確に計測でき、第１従動歯７６１の歯先の位置を正確に計測できるため、従動歯７６のピッチを正確に計測できる。また、従動歯形成部７６０を第２軸線Ｌ２方向に延長した延長部７６６を形成することにより、従動歯形成部７６０に第２段部７８を形成可能な高さを確保することができる。 (Effect of the second modification)
As described above, in the rotation transmission mechanism 10 and the damper device 1 including the driving vehicle 6 and the driven vehicle 7 of the second modification, the tooth surface 668 and the first step portion 68 of the fourth driving tooth 664, which is the final driving tooth. The intersection with the outer peripheral surface of the can be measured. Therefore, the shape of the tooth portion of the fourth drive tooth 664 can be accurately measured, and the position of the tooth tip of the fourth drive tooth 664 can be accurately measured, so that the pitch of the drive tooth 66 can be accurately measured. Further, the intersection of the tooth surface 768 of the first driven tooth 761 and the outer peripheral surface of the second step 78 can be measured. Therefore, the shape of the tooth portion of the first driven tooth 761 can be accurately measured, and the position of the tooth tip of the first driven tooth 761 can be accurately measured, so that the pitch of the driven tooth 76 can be accurately measured. Further, by forming the extension portion 766 in which the driven tooth forming portion 760 is extended in the second axis L2 direction, it is possible to secure a height at which the second step portion 78 can be formed in the driven tooth forming portion 760.

また、第２変形例の駆動車６および従動車７は、複数の従動歯７６が順に複数のカム面６７を摺動する際、最初のカム区間６７１Ａを第１従動歯７６１が摺動する区間が長い。また、第１カム面６７１に第１従動歯７６１が摺動する間の従動車７の回転速度は、第２カム面６７２、第３カム面６７３、第４カム面６７４に対応する従動歯７６が摺動する間の従動車７の回転速度より小さい（遅い）。そして、第２カム面６７２の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの端部は、第３カム面６７３、第４カム面６７４、最終のカム面６７５の一方側Ｌ１ＣＣＷの端部より径方向内側に位置する。このような構成により、従動車７を回転させる際、最初のうちはゆっくりと回転させる動きを実現することができる。 Further, in the driving vehicle 6 and the driven vehicle 7 of the second modification, when the plurality of driven teeth 76 slide on the plurality of cam surfaces 67 in order, the section in which the first driven tooth 761 slides on the first cam section 671A. Is long. Further, the rotation speed of the driven vehicle 7 while the first driven tooth 761 slides on the first cam surface 671 is the driven tooth 76 corresponding to the second cam surface 672, the third cam surface 673, and the fourth cam surface 674. Is smaller (slower) than the rotation speed of the driven vehicle 7 while sliding. The end of the one-sided L1CCW around the first axis L1 of the second cam surface 672 is radially inside the end of the one-sided L1CCW of the third cam surface 673, the fourth cam surface 674, and the final cam surface 675. Located in. With such a configuration, when rotating the driven vehicle 7, it is possible to realize a movement of slowly rotating the driven vehicle 7 at first.

さらに、第２変形例の駆動車６は、第１軸線Ｌ１周りの回転位置を組立基準位置６Ａに合わせるための第１組立用目印６９を備え、第２変形例の従動車７は、第２軸線Ｌ２周りの回転位置を組立基準位置７Ａに合わせるための第２組立用目印７９を備えるため、駆動車６および従動車７の回転位置を予め定められた組立基準位置６Ａ，７Ａに容易に合わせることができる。従って、組立時の作業性が良い。なお、第１組立用目印６９および第２組立用目印７９は、図１９に示すような形態に限定されるものではなく、カバー３に回転可能に取り付けた状態で駆動車６および従動車７の回転位置を合わせることができる形態であればよい。 Further, the drive vehicle 6 of the second modification is provided with a first assembly mark 69 for aligning the rotation position around the first axis L1 with the assembly reference position 6A, and the driven vehicle 7 of the second modification is the second. Since the second assembly mark 79 for aligning the rotation position around the axis L2 with the assembly reference position 7A is provided, the rotation positions of the driving vehicle 6 and the driven vehicle 7 can be easily aligned with the predetermined assembly reference positions 6A and 7A. be able to. Therefore, workability at the time of assembly is good. The first assembly mark 69 and the second assembly mark 79 are not limited to the form shown in FIG. 19, and the drive vehicle 6 and the driven vehicle 7 are rotatably attached to the cover 3. Any form may be used as long as the rotation position can be adjusted.

（他の実施の形態）
上記実施の形態および変形例は、本発明の好適な実施の形態の例であるが、これに限定されるものではなく、本発明の要旨を逸脱しない範囲において、種々変形実施可能である。例えば、上記実施の形態では、第１軸線Ｌ１方向の各位置に駆動歯６６が１つずつ設けられ、第２軸線Ｌ２方向の各位置に従動歯７６が１つずつ設けられていたが、駆動歯６６および従動歯７６が軸線方向の各位置に複数ずつ設けられている態様を採用してもよい。また、上記実施の形態におけるダンパ装置１は、冷蔵庫用であるが、必ずしも、冷蔵庫に用いられるダンパ装置に限定されるものではない。また、上記実施の形態では、ダンパ装置１の回転伝達機構１０に本発明を適用したが、他の装置に用いられる回転伝達機構に本発明を適用してもよい。 (Other embodiments)
The above-described embodiments and modifications are examples of preferred embodiments of the present invention, but the present invention is not limited to these, and various modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, one driving tooth 66 is provided at each position in the first axis L1 direction, and one driven tooth 76 is provided at each position in the second axis L2 direction. A mode may be adopted in which a plurality of teeth 66 and driven teeth 76 are provided at each position in the axial direction. Further, although the damper device 1 in the above embodiment is for a refrigerator, it is not necessarily limited to the damper device used for the refrigerator. Further, in the above embodiment, the present invention is applied to the rotation transmission mechanism 10 of the damper device 1, but the present invention may be applied to the rotation transmission mechanism used in other devices.

１…ダンパ装置、２…フレーム、３…カバー、４…バッフル、５…バッフル駆動機構、６…駆動車、６Ａ…組立基準位置、７…従動車、７Ａ…組立基準位置、８…付勢部材、９…位置検出器、１０…回転伝達機構、２０…開口部、２１…筒部、２２…隔壁、２３…シール部、３１…底部、３２…側壁部、３３、３４…回転支持部、４１…開閉板、４２…弾性部材、５０…モータ、５１…出力軸、５２…ウォーム、５５…伝達機構、５６…ウォームホイール、５７…複合歯車、６１…円盤部、６２…第１胴部、６３…第２胴部、６４…軸部、６５…軸部、６６…駆動歯、６７…カム面、６７Ａ…カム区間、６８…第１段部、６９…第１組立用目印、７４…軸部、７５…軸部、７６…従動歯、７８…第２段部、７９…第２組立用目印、８０…捩りコイルバネ、８１、８２…端部、９１…回転レバー、９２…スイッチ、９３…捩りコイルバネ、２１０…内壁、２１１…係合部、４１１…係合部、５７１…大径歯車、６１０…歯車、６３０…センサ用カム面、６３１…小径部、６３２…大径部、６３４…拡径部、６３５…縮径部、６６０…駆動歯形成部、６６１…第１駆動歯、６６２…第２駆動歯、６６３…第３駆動歯、６６４…第４駆動歯（最終駆動歯）、６６８…第４駆動歯の歯面、６６９…円周面、６７０…カム面形成部、６７１…第１カム面、６７２…第２カム面、６７３…第３カム面、６７４…第４カム面、６７５…第５カム面、６７１Ａ、６７２Ａ、６７３Ａ、６７４Ａ、６７５Ａ…カム区間、７５１…平坦面、７６０…従動歯形成部、７６１…第１従動歯、７６２…第２従動歯、７６３…第３従動歯、７６４…第４従動歯、７６５…最終従動歯、７６６…延長部、７６８…第１従動歯の歯面、７６９…円周面、９１０…支軸、９１１…第１アーム部、９１２…第２アーム部、９１３…第１当接部、９１４…第２当接部、９３１、９３２…端部、Ｌ…回転中心軸線、ＬＣＣＷ…回転中心軸線周りの他方側、ＬＣＷ…回転中心軸線周りの一方側、Ｌ１…第１軸線、Ｌ１ａ…一方側、Ｌ１ｂ…他方側、Ｌ１ＣＣＷ…第１軸線周りの一方側、Ｌ１ＣＷ…第１軸線周りの他方側、Ｌ２…第２軸線、Ｌ２ａ…一方側、Ｌ２ｂ…他方側、Ｌ２ＣＣＷ…第２軸線周りの他方側、Ｌ２ＣＷ…第２軸線周りの一方側、Ｐ１、Ｐ２…交点 1 ... damper device, 2 ... frame, 3 ... cover, 4 ... baffle, 5 ... baffle drive mechanism, 6 ... drive vehicle, 6A ... assembly reference position, 7 ... driven vehicle, 7A ... assembly reference position, 8 ... urging member , 9 ... position detector, 10 ... rotation transmission mechanism, 20 ... opening, 21 ... cylinder, 22 ... partition, 23 ... seal, 31 ... bottom, 32 ... side wall, 33, 34 ... rotation support, 41 ... opening / closing plate, 42 ... elastic member, 50 ... motor, 51 ... output shaft, 52 ... worm, 55 ... transmission mechanism, 56 ... worm wheel, 57 ... composite gear, 61 ... disk part, 62 ... first body part, 63 ... second body, 64 ... shaft, 65 ... shaft, 66 ... drive teeth, 67 ... cam surface, 67A ... cam section, 68 ... first stage, 69 ... first assembly mark, 74 ... shaft , 75 ... Shaft, 76 ... Driven tooth, 78 ... Second stage, 79 ... Second assembly mark, 80 ... Twist coil spring, 81, 82 ... End, 91 ... Rotating lever, 92 ... Switch, 93 ... Twist Coil spring, 210 ... inner wall, 211 ... engaging part, 411 ... engaging part, 571 ... large diameter gear, 610 ... gear, 630 ... sensor cam surface, 631 ... small diameter part, 632 ... large diameter part, 634 ... expanded diameter Part, 635 ... Reduced diameter part, 660 ... Drive tooth forming part, 661 ... 1st drive tooth, 662 ... 2nd drive tooth, 663 ... 3rd drive tooth, 664 ... 4th drive tooth (final drive tooth), 668 ... 4th drive tooth surface, 669 ... circumferential surface, 670 ... cam surface forming portion, 671 ... first cam surface, 672 ... second cam surface, 673 ... third cam surface, 674 ... fourth cam surface, 675 ... 5th cam surface, 671A, 672A, 673A, 674A, 675A ... Cam section, 751 ... Flat surface, 760 ... Driven tooth forming part, 761 ... 1st driven tooth, 762 ... 2nd driven tooth, 763 ... 3rd driven Tooth, 764 ... 4th driven tooth, 765 ... Final driven tooth, 766 ... Extension, 768 ... 1st driven tooth surface, 769 ... Circumferential surface, 910 ... Support shaft, 911 ... 1st arm part, 912 ... 2nd arm part, 913 ... 1st contact part, 914 ... 2nd contact part, 931, 932 ... end part, L ... rotation center axis, LCCW ... other side around rotation center axis, LCW ... around rotation center axis One side, L1 ... 1st axis, L1a ... One side, L1b ... The other side, L1CCW ... One side around the 1st axis, L1CW ... The other side around the 1st axis, L2 ... 2nd axis, L2a ... One side , L2b ... the other side, L2CCW ... the other side around the second axis, L2CW ... one side around the second axis, P1, P2 ... intersection

Claims (28)

第１軸線周りの一方側に回転する駆動車と、
前記駆動車によって前記第１軸線と平行な第２軸線周りの一方側に回転駆動される従動車と、
前記従動車を前記第２軸線周りの他方側に付勢する付勢部材と、
を有し、
前記駆動車には、前記従動車を前記第２軸線周りの一方側に回転駆動する複数の駆動歯が周方向に配置された駆動歯形成部と、前記従動車が前記付勢部材による付勢力によって前記第２軸線周りの他方側に回転する際に前記従動車が摺動するカム面形成部と、が周方向で隣り合うように設けられ、
前記従動車には、前記駆動車が前記第１軸線周りの一方側に回転した際に前記駆動歯が順に当接する複数の従動歯が一部の角度範囲に配置された従動歯形成部が設けられ、
前記複数の駆動歯は各々、前記第１軸線方向の異なる位置に設けられ、前記複数の従動歯は各々、前記第２軸線方向の異なる位置に設けられていることを特徴とする回転伝達機構。 A drive vehicle that rotates to one side around the first axis,
A driven vehicle that is rotationally driven by the driving vehicle to one side around the second axis parallel to the first axis, and
An urging member that urges the driven vehicle to the other side around the second axis, and
Have,
The drive vehicle includes a drive tooth forming portion in which a plurality of drive teeth for rotationally driving the driven vehicle on one side around the second axis are arranged in the circumferential direction, and the driven vehicle is urged by the urging member. The cam surface forming portion on which the driven vehicle slides when rotating to the other side around the second axis is provided so as to be adjacent to each other in the circumferential direction.
The driven vehicle is provided with a driven tooth forming portion in which a plurality of driven teeth that the driving teeth come into contact with in order when the driving vehicle rotates to one side around the first axis are arranged in a part of an angle range. Be,
A rotation transmission mechanism characterized in that each of the plurality of driving teeth is provided at a different position in the first axis direction, and each of the plurality of driven teeth is provided at a different position in the second axis direction. 前記カム面形成部には、前記従動車が前記付勢部材による付勢力によって前記第２軸線周りの他方側に回転する際に前記複数の従動歯が順に摺動する複数のカム面が前記第１軸線方向の異なる位置に設けられていることを特徴とする請求項１に記載の回転伝達機構。 The cam surface forming portion includes a plurality of cam surfaces on which the plurality of driven teeth slide in order when the driven vehicle rotates to the other side around the second axis by the urging force of the urging member. The rotation transmission mechanism according to claim 1, wherein the rotation transmission mechanism is provided at different positions in one axial direction. 前記複数のカム面は、前記第１軸線周りの一方側から他方側に向かって外径が縮小していることを特徴とする請求項２に記載の回転伝達機構。 The rotation transmission mechanism according to claim 2, wherein the plurality of cam surfaces have an outer diameter that decreases from one side around the first axis toward the other side. 前記駆動歯形成部では、前記第１軸線方向の各位置に前記駆動歯が１つずつ設けられ、
前記従動歯形成部では、前記第２軸線方向の各位置に前記従動歯が１つずつ設けられていることを特徴とする請求項２または３に記載の回転伝達機構。 In the drive tooth forming portion, one drive tooth is provided at each position in the first axial direction.
The rotation transmission mechanism according to claim 2 or 3, wherein the driven tooth forming portion is provided with one driven tooth at each position in the second axis direction. 前記複数の従動歯が前記複数のカム面に対して順に摺動する各区間の間では、現区間の従動歯がカム面に接しているうちに、次区間の従動歯がカム面に接し始めることを特徴とする請求項２から４の何れか一項に記載の回転伝達機構。 Between the sections in which the plurality of driven teeth slide in order with respect to the plurality of cam surfaces, the driven teeth in the next section start to contact the cam surface while the driven teeth in the current section are in contact with the cam surface. The rotation transmission mechanism according to any one of claims 2 to 4, wherein the rotation transmission mechanism is characterized. 前記複数の駆動歯では、前記第１軸線方向の一方側に位置する駆動歯が前記第１軸線方向の他方側に位置する駆動歯より前記第１軸線周りの他方側に位置し、
前記複数の従動歯では、前記第２軸線方向の一方側に位置する従動歯が前記第２軸線方向の他方側に位置する従動歯より前記第２軸線周りの他方側に位置し、
前記複数のカム面では、前記第１軸線方向の一方側に位置するカム面が前記第１軸線方向の他方側に位置するカム面より前記第１軸線周りの一方側に位置していることを特徴とする請求項２から５の何れか一項に記載の回転伝達機構。 In the plurality of drive teeth, the drive tooth located on one side in the first axis direction is located on the other side around the first axis with respect to the drive tooth located on the other side in the first axis direction.
In the plurality of driven teeth, the driven tooth located on one side in the second axis direction is located on the other side around the second axis with respect to the driven tooth located on the other side in the second axis direction.
In the plurality of cam surfaces, the cam surface located on one side in the first axis direction is located on one side around the first axis with respect to the cam surface located on the other side in the first axis direction. The rotation transmission mechanism according to any one of claims 2 to 5, wherein the rotation transmission mechanism is characterized. 前記複数の駆動歯は、前記第１軸線周りの一方側の面が歯面となっており、
前記駆動車は、前記第１軸線周りの最も他方側に位置する最終駆動歯の歯面に対して周方向に隣り合う位置に形成された第１段部を備え、
前記第１段部は、前記最終駆動歯の歯面の径方向外側の端部と交差する外周面を備えることを特徴とする請求項６に記載の回転伝達機構。 In the plurality of driving teeth, one surface around the first axis is a tooth surface.
The drive vehicle includes a first step portion formed at a position adjacent to the tooth surface of the final drive tooth located on the farthest side around the first axis in the circumferential direction.
The rotation transmission mechanism according to claim 6, wherein the first step portion includes an outer peripheral surface that intersects a radial outer end portion of the tooth surface of the final driving tooth. 前記複数の駆動歯は、前記第１軸線周りの一方側の面が歯面となっており、
前記駆動車は、前記第１軸線周りの最も他方側に位置する最終駆動歯の歯面に対して周方向に隣り合う位置に形成された第１凹部を備え、
前記第１凹部は、前記最終駆動歯の歯面の径方向外側の端部と交差する内周面を備える
ことを特徴とする請求項６に記載の回転伝達機構。 In the plurality of driving teeth, one surface around the first axis is a tooth surface.
The drive vehicle includes a first recess formed at a position adjacent to the tooth surface of the final drive tooth located on the farthest side around the first axis in the circumferential direction.
The rotation transmission mechanism according to claim 6, wherein the first concave portion includes an inner peripheral surface that intersects a radial outer end portion of the tooth surface of the final driving tooth. 前記複数の従動歯は、前記第２軸線周りの他方側の面が歯面となっており、
前記従動車は、前記第２軸線周りの最も一方側に位置する第１従動歯の歯面に対して周方向に隣り合う位置に形成された第２段部を備え、
前記第２段部は、前記第１従動歯の歯面の径方向外側の端部と交差する外周面を備えることを特徴とする請求項６から７の何れか一項に記載の回転伝達機構。 In the plurality of driven teeth, the other surface around the second axis is the tooth surface.
The driven vehicle includes a second step portion formed at a position adjacent to the tooth surface of the first driven tooth located on the most one side around the second axis in the circumferential direction.
The rotation transmission mechanism according to any one of claims 6 to 7, wherein the second step portion includes an outer peripheral surface that intersects a radial outer end portion of the tooth surface of the first driven tooth. .. 前記複数の従動歯は、前記第２軸線周りの他方側の面が歯面となっており、
前記従動車は、前記第２軸線周りの最も一方側に位置する第１従動歯の歯面に対して周方向に隣り合う位置に形成された第２凹部を備え、
前記第２凹部は、前記第１従動歯の歯面の径方向外側の端部と交差する内周面を備えることを特徴とする請求項６から７の何れか一項に記載の回転伝達機構。 In the plurality of driven teeth, the other surface around the second axis is the tooth surface.
The driven vehicle includes a second recess formed at a position adjacent to the tooth surface of the first driven tooth located on the most one side around the second axis in the circumferential direction.
The rotation transmission mechanism according to any one of claims 6 to 7, wherein the second recess includes an inner peripheral surface that intersects a radial outer end of the tooth surface of the first driven tooth. .. 前記従動車は、前記第１従動歯より前記第２軸線方向の一方側に前記従動歯形成部を延長した延長部を備え、
前記第２段部は、前記延長部に形成されていることを特徴とする請求項９に記載の回転伝達機構。 The driven vehicle includes an extension portion extending from the driven tooth forming portion on one side in the second axis direction from the first driven tooth.
The rotation transmission mechanism according to claim 9, wherein the second stage portion is formed on the extension portion. 前記従動歯形成部には、前記駆動歯が当接しない最終従動歯が、前記複数の従動歯より前記第２軸線周りの一方側、かつ、前記複数の従動歯よりも前記第２軸線方向の他方側に設けられ、
前記カム面形成部には、前記最終従動歯が当接する最終のカム面が設けられていることを特徴とする請求項２から１１の何れか一項に記載の回転伝達機構。 The final driven tooth that the driving tooth does not abut on the driven tooth forming portion is located on one side of the plurality of driven teeth around the second axis and in the direction of the second axis of the plurality of driven teeth. Provided on the other side
The rotation transmission mechanism according to any one of claims 2 to 11, wherein the cam surface forming portion is provided with a final cam surface to which the final driven tooth comes into contact. 前記複数の従動歯の各ピッチが等しく、
前記複数の従動歯のうち、前記第２軸線周りの最も一方側に位置する従動歯と前記最終従動歯とのピッチは、前記複数の従動歯のピッチより広いことを特徴とする請求項１２に記載の回転伝達機構。 Each pitch of the plurality of driven teeth is equal,
The twelfth claim is characterized in that the pitch between the driven tooth located on the most one side around the second axis and the final driven tooth among the plurality of driven teeth is wider than the pitch of the plurality of driven teeth. Described rotation transmission mechanism. 前記カム面および前記最終のカム面は、前記第１軸線周りの一方側から他方側に向かって外径が縮小しており、
前記最終のカム面は、前記第１軸線周りの一方側に位置する部分の外径の周方向での減少率が前記複数のカム面より小さく、かつ、前記第１軸線周りの他方側に位置する部分の外径の周方向での減少率が前記複数のカム面より大きいことを特徴とする請求項１３に記載の回転伝達機構。 The outer diameters of the cam surface and the final cam surface are reduced from one side around the first axis toward the other side.
The final cam surface has a portion located on one side of the first axis, the reduction rate of the outer diameter in the circumferential direction is smaller than that of the plurality of cam surfaces, and the final cam surface is located on the other side of the first axis. The rotation transmission mechanism according to claim 13, wherein the reduction rate of the outer diameter of the portion to be formed in the circumferential direction is larger than that of the plurality of cam surfaces. 前記複数のカム面はいずれも、前記第１軸線周りの一方側の端部が前記第１軸線周りの一方側で隣り合うカム面より径方向外側に位置することを特徴とする請求項２から１４の何れか一項に記載の回転伝達機構。 From claim 2, the plurality of cam surfaces are all characterized in that one end portion around the first axis is located radially outside the adjacent cam surfaces on one side around the first axis. 14. The rotation transmission mechanism according to any one of 14. 前記複数のカム面には、前記第１軸線周りの一方側の端部が前記第１軸線周りの一方側で隣り合うカム面の外縁と重なったカム面が含まれていることを特徴とする請求項２から１４の何れか一項に記載の回転伝達機構。 The plurality of cam surfaces include a cam surface whose one end around the first axis overlaps with the outer edge of adjacent cam surfaces on one side around the first axis. The rotation transmission mechanism according to any one of claims 2 to 14. 前記複数のカム面のそれぞれは、前記第１軸線周りの他方側で隣り合うカム面と周方向に重なり合わないカム区間を備え、
前記第１軸線周りの最も一方側に位置する第１カム面の前記カム区間は、前記第１軸線周りの最も他方側に位置する最終のカム面を除く他のカム面の前記カム区間より周方向に広いことを特徴とする請求項２から１６の何れか一項に記載の回転伝達機構。 Each of the plurality of cam surfaces includes a cam section that does not overlap with the adjacent cam surfaces on the other side around the first axis in the circumferential direction.
The cam section of the first cam surface located on the most one side around the first axis is more circumferential than the cam section of the other cam surface excluding the final cam surface located on the most opposite side around the first axis. The rotation transmission mechanism according to any one of claims 2 to 16, characterized in that it is wide in the direction. 前記第１カム面に前記複数の従動歯のうちの対応する１つが摺動する間の前記従動車の回転速度は、前記第１カム面および前記最終のカム面とは異なるカム面に前記複数の従動歯のうちの対応する１つが摺動する間の前記従動車の回転速度より小さいことを特徴とする請求項１７に記載の回転伝達機構。 The rotational speed of the driven vehicle while the corresponding one of the plurality of driven teeth slides on the first cam surface is such that the plurality of rotating speeds are on a cam surface different from the first cam surface and the final cam surface. The rotation transmission mechanism according to claim 17, wherein the rotation speed of the driven vehicle is smaller than that of the driven tooth while the corresponding one of the driven teeth is sliding. 前記複数のカム面は、前記第１軸線周りの最も一方側から数えて２番目に位置する第２カム面を備え、
前記第２カム面の前記第１軸線周りの一方側の端部は、前記第２カム面より前記第１軸線周りの他方側に位置するカム面の前記第１軸線周りの一方側の端部より径方向内側に位置することを特徴とする請求項１７または１８に記載の回転伝達機構。 The plurality of cam surfaces include a second cam surface located second from the onemost side around the first axis.
One end of the second cam surface around the first axis is one end of the cam surface located on the other side of the second cam surface around the first axis. The rotation transmission mechanism according to claim 17 or 18, wherein the rotation transmission mechanism is located inward in the radial direction. 前記駆動車または前記従動車の角度位置を監視する位置検出器が設けられていることを特徴とする請求項１から１９の何れか一項に記載の回転伝達機構。 The rotation transmission mechanism according to any one of claims 1 to 19, wherein a position detector for monitoring the angular position of the driving vehicle or the driven vehicle is provided. 前記位置検出器は、前記駆動車の角度位置を監視することを特徴とする請求項２０に記載の回転伝達機構。 The rotation transmission mechanism according to claim 20, wherein the position detector monitors an angular position of the driving vehicle. 前記位置検出器は、前記駆動車に設けられたセンサ用カム面によって変位する回転レバーと、前記回転レバーの変位によってオンオフが行われるスイッチと、を有していることを特徴とする請求項２１に記載の回転伝達機構。 21. The position detector is characterized by having a rotary lever that is displaced by a sensor cam surface provided on the drive vehicle and a switch that is turned on and off by the displacement of the rotary lever. The rotation transmission mechanism described in 1. 前記位置検出器は、前記従動車が前記第２軸線周りの最も一方側に回転した後、停止している区間の途中位置で前記スイッチからの出力が切り換わるとともに、前記従動車が前記第２軸線周りの最も他方側に回転した後、停止している区間の途中位置で前記スイッチからの出力が切り換わることを特徴とする請求項２２に記載の回転伝達機構。 In the position detector, after the driven vehicle rotates to the most one side around the second axis, the output from the switch is switched at a position in the middle of the stopped section, and the driven vehicle is the second. The rotation transmission mechanism according to claim 22, wherein the output from the switch is switched at an intermediate position of a stopped section after rotating to the farthest side around the axis. 前記駆動車は、前記第１軸線周りの回転位置を組立基準位置に合わせるための第１組立用目印を備えることを特徴とする請求項１から２３の何れか一項に記載の回転伝達機構。 The rotation transmission mechanism according to any one of claims 1 to 23, wherein the drive vehicle includes a first assembly mark for aligning a rotation position around the first axis with an assembly reference position. 前記従動車は、前記第２軸線周りの回転位置を組立基準位置に合わせるための第２組立用目印を備えることを特徴とする請求項１から２４の何れか一項に記載の回転伝達機構。 The rotation transmission mechanism according to any one of claims 1 to 24, wherein the driven vehicle includes a second assembly mark for aligning a rotation position around the second axis with an assembly reference position. 請求項１から２５の何れか一項に記載の前記回転伝達機構を備えたダンパ装置であって、
開口部が形成されたフレームと、
前記駆動車を駆動するモータと、
前記従動車の前記第２軸線周りの回転が伝達されて前記開口部を開閉するバッフルと、
を有することを特徴とするダンパ装置。 A damper device provided with the rotation transmission mechanism according to any one of claims 1 to 25.
The frame with the opening and
The motor that drives the driving vehicle and
A baffle that opens and closes the opening by transmitting the rotation of the driven vehicle around the second axis.
A damper device characterized by having. 前記付勢部材は、前記バッフルを前記開口部に対する開方向あるいは閉方向に付勢することにより、前記従動車を前記第２軸線周りの他方側に付勢していることを特徴とする請求項２６に記載のダンパ装置。 The urging member is characterized in that the driven vehicle is urged to the other side around the second axis by urging the baffle in the opening direction or the closing direction with respect to the opening. 26. The damper device. 前記モータは、前記駆動車を前記第１軸線周りの一方側に駆動させる回転駆動力のみを出力可能であることを特徴とする請求項２６または２７に記載のダンパ装置。 The damper device according to claim 26 or 27, wherein the motor can output only a rotational driving force that drives the driving vehicle to one side around the first axis.
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