JP6075996B2 - The camera module - Google Patents

The camera module Download PDF

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Publication number
JP6075996B2
JP6075996B2 JP2012185795A JP2012185795A JP6075996B2 JP 6075996 B2 JP6075996 B2 JP 6075996B2 JP 2012185795 A JP2012185795 A JP 2012185795A JP 2012185795 A JP2012185795 A JP 2012185795A JP 6075996 B2 JP6075996 B2 JP 6075996B2
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gear
axis
motor
movable body
camera
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JP2014044269A (en
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正明 安藤
正明 安藤
伸一 吉川
伸一 吉川
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Nidec Sankyo Corp
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Nidec Sankyo Corp
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Priority to JP2012185795A priority Critical patent/JP6075996B2/en
Priority to PCT/JP2013/071234 priority patent/WO2014030532A1/en
Priority to CN201380032141.5A priority patent/CN104380193B/en
Priority to KR1020147036249A priority patent/KR101626705B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/206—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members characterised by the driving or driven member being composed of two or more gear wheels
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/561—Support related camera accessories
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/02—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with scanning movement of lens or cameras
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19617—Surveillance camera constructional details
    • G08B13/1963—Arrangements allowing camera rotation to change view, e.g. pivoting camera, pan-tilt and zoom [PTZ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element

Description

本発明は、カメラの撮像方向を切り換えることのできるカメラモジュールに関するものである。   The present invention relates to a camera module capable of switching the imaging direction of a camera.

カメラの撮像方向を切り換える装置は特に、監視カメラの分野で多用されており、かかる用途に用いるカメラモジュールでは、ベルト機構を介してモータの回転をカメラに伝達するようになっている（特許文献１、２参照）。   Devices for switching the imaging direction of a camera are widely used particularly in the field of surveillance cameras. In a camera module used for such applications, rotation of a motor is transmitted to the camera via a belt mechanism (Patent Document 1). 2).

特開平８−９５１２９号公報JP-A-8-95129 特開２００８−７８９６４号公報JP 2008-78964 A

カメラの撮像方向を切り換えたいという要求は、監視カメラに限らず、例えば、テレビ電話等の分野でも存在するが、かかる分野では、カメラの撮像方向の切り換えに高い分解能が要求されることから、従来は、手動による切り換えが主流である。すなわち、特許文献１、２に記載の技術のようにベルト機構を採用した場合、モータからの減速比を大きくして分解能を高めようとすると、カメラモジュールが大型化してしまい、テレビ電話等に搭載するのに不適である。特に、据え置き型のテレビにカメラを搭載して、通話者の画像を通話相手に送信するように構成する場合、テレビ画面を囲む枠部分にカメラを配置する必要があるため、ベルト機構を採用した大型のカメラモジュールを用いることが困難である。   The demand for switching the imaging direction of the camera is not limited to the surveillance camera, but also exists in the field of, for example, videophones. In such a field, a high resolution is required for switching the imaging direction of the camera. Manual switching is the mainstream. In other words, when the belt mechanism is employed as in the techniques described in Patent Documents 1 and 2, if the reduction ratio from the motor is increased to increase the resolution, the camera module becomes larger and mounted on a videophone or the like. Inappropriate to do. In particular, when a camera is mounted on a stationary TV and the caller's image is sent to the other party, it is necessary to place the camera in the frame that surrounds the TV screen. It is difficult to use a large camera module.

そこで、ベルト機構に代えて歯車機構を利用することが考えられるが、歯車機構を採用した場合、歯車間のバックラッシュが原因でカメラの撮像方向が安定しないという問題点がある。特に、分解能を高めることを目的に、歯車の数を増やして減速比を大とすると、その分、バックラッシュの影響が大となってしまう。   Thus, it is conceivable to use a gear mechanism instead of the belt mechanism. However, when the gear mechanism is employed, there is a problem that the imaging direction of the camera is not stable due to backlash between the gears. In particular, if the number of gears is increased to increase the reduction ratio for the purpose of increasing the resolution, the influence of backlash increases accordingly.

以上の問題点に鑑みて、本発明の課題は、小型化を図ることができるとともに、カメラを任意の方向に安定して向かせることのできるカメラモジュール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 camera module that can be reduced in size and can stably point a camera in an arbitrary direction.

上記課題を解決するために、本発明に係るカメラモジュールは、カメラと、該カメラを保持する可動体と、該可動体を前記カメラの撮像方向と交差する方向に延在する回転中心軸線周りに回転可能に支持する固定体と、モータ、および該モータの回転を減速して前記可動体に伝達する歯車機構によって前記可動体を前記回転中心軸線周りに回転させる駆動装置と、前記可動体を前記回転中心軸線方向に付勢して前記固定体に押し付ける付勢部材と、を有し、前記固定体はケースを備え、前記可動体は前記回転中心軸線方向に延びる軸部を備え、前記付勢部材は前記軸部を前記ケースに押し付けており、前記歯車機構は、第１軸線回りに回転可能な複数の第１歯車と、前記第１軸線と平行に並列する第２軸線回りに回転可能な複数の第２歯車と、前記モータの出力軸に固着されたモータピニオンと、前記モータピニオンに噛合する第１平歯車と、前記第１歯車に噛合し且つ前記第１平歯車に連結される第２平歯車と、を含み、前記第１平歯車および前記第２平歯車は前記第２軸線回りに回転し、前記モータの回転は、前記複数の第１歯車および前記複数の第２歯車において、第１歯車から第２歯車への伝達と、当該第２歯車から別の第１歯車への伝達と、当該別の歯車から別の第２歯車への伝達と、が行われて前記可動体に伝達されることを特徴とする。 In order to solve the above problems, a camera module according to the present invention includes a camera, a movable body that holds the camera, and a rotation center axis that extends in a direction that intersects the imaging direction of the camera. A fixed body that is rotatably supported, a motor, a driving device that rotates the movable body around the rotation center axis by a gear mechanism that decelerates and transmits the rotation of the motor to the movable body, and the movable body A biasing member that biases in the direction of the rotation center axis and presses against the fixed body, the fixed body includes a case, the movable body includes a shaft portion extending in the rotation center axis direction, and the bias The member presses the shaft portion against the case, and the gear mechanism is rotatable about a plurality of first gears rotatable around a first axis and a second axis parallel to the first axis. A plurality of second gears A motor pinion fixed to the output shaft of the motor; a first spur gear meshing with the motor pinion; and a second spur gear meshing with the first gear and coupled to the first spur gear. The first spur gear and the second spur gear rotate about the second axis, and the motor rotates in the plurality of first gears and the plurality of second gears from the first gear to the second gear. Transmission from the second gear to another first gear and transmission from the other gear to another second gear are transmitted to the movable body. To do.

本発明では、駆動装置においてモータを回転させると、モータの回転は、歯車機構を介して可動体に伝達されるので、カメラを保持する可動体がカメラの撮像方向と交差する回
転中心軸線周りに回転して撮像方向が切り換えられる。ここで、駆動機構では歯車機構が用いられているので、減速比を大きくして分解能を高めた場合でも、ベルト機構を用いた場合に比して小型化を図ることができる。また、可動体は回転中心軸線方向に延びる軸部を備え、固定体はケースを備え、可動体の軸部を回転中心軸線方向に付勢して固定体のケースに向けて押し付ける付勢部材が設けられているので、歯車機構にバックラッシュがある場合でも、撮像方向がぶれない。それ故、カメラを任意の方向に安定して向かせることができる。また、モータは、歯車機構によって減速して伝達されるので、付勢部材によって可動体を固定体に向けて押し付けた構成を採用した場合でも、モータの回転によって可動体を回転させることができる。 In the present invention, when the motor is rotated in the drive device, the rotation of the motor is transmitted to the movable body via the gear mechanism, so that the movable body that holds the camera is around the rotation center axis that intersects the imaging direction of the camera. The imaging direction is switched by rotating. Here, since the gear mechanism is used in the drive mechanism, even when the reduction ratio is increased to increase the resolution, the size can be reduced as compared with the case where the belt mechanism is used. The movable body includes a shaft portion extending in the rotation center axis direction, the fixed body includes a case , and a biasing member that biases the shaft portion of the movable body in the rotation center axis direction and presses the shaft portion toward the case of the fixed body. Since it is provided, the imaging direction does not blur even when the gear mechanism has backlash. Therefore, the camera can be stably directed in any direction. In addition, since the motor is transmitted by being decelerated by the gear mechanism, even when a configuration in which the movable body is pressed against the fixed body by the biasing member is adopted, the movable body can be rotated by the rotation of the motor.

また、本発明では、前記歯車機構は、第１軸線周りに回転可能な複数の第１歯車と、前記第１軸線と平行に並列する第２軸線周りに回転可能な複数の第２歯車と、前記モータの出力軸に固着されたモータピニオンと、前記モータピニオンに噛合する第１平歯車と、前記第１歯車に噛合し且つ前記第１平歯車に連結される第２平歯車と、を含み、前記第２軸線は前記第１平歯車および前記第２平歯車の回転中心を通り、前記モータの回転は、前記
複数の第１歯車および前記複数の第２歯車において、第１歯車から第２歯車への伝達と、当該第２歯車から別の第１歯車への伝達と、当該別の第１歯車から別の第２歯車への伝達と、が行われて前記可動体に伝達される。かかる構成によれば、減速機構を構成するにあたって、第１軸線に沿って配置された複数の第１歯車と、第２軸線に沿って配置された複数の第２歯車と、を利用するので、減速比を大きくした場合でも、歯車機構（減速機構）が占有するスペースが狭く済む。 In the present invention, the gear mechanism includes a plurality of first gears rotatable around a first axis, and a plurality of second gears rotatable around a second axis parallel to the first axis. A motor pinion fixed to the output shaft of the motor; a first spur gear meshing with the motor pinion; and a second spur gear meshing with the first gear and coupled to the first spur gear. The second axis passes through the rotation centers of the first spur gear and the second spur gear, and the rotation of the motor is second to second in the plurality of first gears and the plurality of second gears. and transfer to the gear, and transmitted from the second gear to another of the first gear, and the transmission from the another of the first gear to another second gear, Ru is been conducted transmitted to the movable body. According to such a configuration, when configuring the speed reduction mechanism, a plurality of first gears arranged along the first axis and a plurality of second gears arranged along the second axis are used. Even when the reduction ratio is increased, the space occupied by the gear mechanism (reduction mechanism) can be reduced.

本発明において、前記第１歯車および前記第２歯車は各々、大径歯車に対して前記第１軸線方向および前記第２軸線方向における同一側に小径歯車が一体化されている複合歯車であり、前記複数の第１歯車および前記複数の第２歯車において、第２歯車の大径歯車には、当該第２歯車を駆動する第１歯車の小径歯車が噛合し、当該第２歯車の小径歯車には、当該第２歯車に従動する別の第１歯車の大径歯車が噛合していることが好ましい。かかる構成によれば、減速機構を構成するにあたって、第１歯車および第２歯車として大径歯車と小径歯車とが同一方向に位置する複数の複合歯車を利用するので、減速比を大きくした場合でも、歯車機構（減速機構）が占有するスペースが狭く済む。   In the present invention, each of the first gear and the second gear is a compound gear in which a small-diameter gear is integrated on the same side in the first axial direction and the second axial direction with respect to a large-diameter gear, In the plurality of first gears and the plurality of second gears, the small diameter gear of the first gear that drives the second gear meshes with the large diameter gear of the second gear, and the small diameter gear of the second gear Is preferably meshed with a large-diameter gear of another first gear driven by the second gear. According to such a configuration, when the speed reduction mechanism is configured, a plurality of compound gears in which the large diameter gear and the small diameter gear are positioned in the same direction are used as the first gear and the second gear, so even when the reduction ratio is increased. The space occupied by the gear mechanism (reduction mechanism) can be reduced.

本発明において、前記モータのモータ軸線は、前記第１軸線および前記第２軸線と平行であることが好ましい。あるいは、前記モータのモータ軸線は、前記第１軸線の延長線上にあることが好ましい。かかる構成によれば、モータおよび歯車機構が占有するスペースが狭く済む。 In the present invention, it is preferable that a motor axis of the motor is parallel to the first axis and the second axis . Alternatively , the motor axis of the motor is preferably on an extension line of the first axis. According to this configuration, the space occupied by the motor and the gear mechanism can be reduced.

本発明において、前記可動体の前記回転中心軸線は、前記第１軸線および前記第２軸線と平行に延在していることが好ましい。かかる構成によれば、可動体および歯車機構が占有するスペースが狭く済む。   In the present invention, it is preferable that the rotation center axis of the movable body extends in parallel with the first axis and the second axis. According to this configuration, the space occupied by the movable body and the gear mechanism can be reduced.

本発明において、前記第１軸線および前記第２軸線は、前記可動体の前記回転中心軸線に対して前記撮像方向とは反対側に向かって配列されていることが好ましい。かかる構成によれば、被写体側からみたときにカメラモジュールが占める領域が狭く済む。従って、テレビ画面を囲む枠部分等にカメラモジュールを納めることができる。   In the present invention, it is preferable that the first axis and the second axis are arranged toward the opposite side of the imaging direction with respect to the rotation center axis of the movable body. With this configuration, the area occupied by the camera module when viewed from the subject side can be reduced. Therefore, the camera module can be stored in a frame portion surrounding the television screen.

本発明において、前記複数の第１歯車は各々、前記第１軸線上で延在する共通の第１支軸に回転可能に支持され、前記複数の第２歯車は各々、前記第２軸線上で延在する共通の第２支軸に回転可能に支持されていることが好ましい。かかる構成によれば、複数の第１歯車における支軸を第１支軸として共通化でき、複数の第２歯車における支軸を第２支軸として共通化できるので、部品点数の削減を図ることができるとともに、歯車機構が占有するスペースが狭く済む。   In the present invention, each of the plurality of first gears is rotatably supported by a common first support shaft extending on the first axis, and each of the plurality of second gears is on the second axis. It is preferable that it is rotatably supported by the extended common 2nd spindle. According to such a configuration, the support shafts of the plurality of first gears can be shared as the first support shaft, and the support shafts of the plurality of second gears can be shared as the second support shaft, thereby reducing the number of parts. And the space occupied by the gear mechanism can be reduced.

本発明において、前記カメラは、前記駆動装置に駆動されて、前記固定体から露出した状態と、前記固定体に隠れた状態とに切り換わることが好ましい。かかる構成によれば、カメラを使用しないときには、カメラを固定体に隠れた状態とすることができるので、カメラが汚れるのを防止することができるとともに、カメラの存在が気になるという事態を回避することができる。   In the present invention, it is preferable that the camera is driven by the driving device to switch between a state exposed from the fixed body and a state hidden behind the fixed body. According to such a configuration, when the camera is not used, the camera can be hidden in the stationary body, so that the camera can be prevented from being dirty and the situation where the camera is anxious can be avoided. can do.

本発明では、駆動装置においてモータを回転させると、モータの回転は、歯車機構を介して可動体に伝達されるので、カメラを保持する可動体がカメラの撮像方向と交差する回転中心軸線周りに回転して撮像方向が切り換えられる。ここで、駆動機構では歯車機構が用いられているので、減速比を大きくして分解能を高めた場合でも、ベルト機構を用いた場合に比して小型化を図ることができる。また、可動体の軸部を回転中心軸線方向に付勢して固定体のケースに向けて押し付ける付勢部材が設けられているので、歯車機構にバックラッシュがある場合でも、撮像方向がぶれない。それ故、カメラを任意の方向に安定して向かせることができる。また、モータは、歯車機構によって減速して伝達されるので、付勢部材によって可動体を固定体に向けて押し付けた構成を採用した場合でも、モータの回転によって可動体を回転させることができる。また、本発明では、減速機構を構成するにあたって、第１軸線に沿って配置された複数の第１歯車と、第２軸線に沿って配置された複数の第２歯車と、を利用するとともに、歯車機構は、モータの出力軸に固着されたモータピニオンに噛合する第１平歯車と、第１歯車に噛合し且つ第１平歯車に連結される第２平歯車と、を含み、第２軸線は前記第１平歯車および前記第２平歯車の回転中心を通るので、減速比を大きくした場合でも、歯車機構が占有するスペースが狭く済む。 In the present invention, when the motor is rotated in the drive device, the rotation of the motor is transmitted to the movable body via the gear mechanism, so that the movable body that holds the camera is around the rotation center axis that intersects the imaging direction of the camera. The imaging direction is switched by rotating. Here, since the gear mechanism is used in the drive mechanism, even when the reduction ratio is increased to increase the resolution, the size can be reduced as compared with the case where the belt mechanism is used. In addition, since an urging member that urges the shaft portion of the movable body in the direction of the rotation center axis and presses it toward the case of the fixed body is provided, the imaging direction does not blur even when the gear mechanism has backlash. . Therefore, the camera can be stably directed in any direction. In addition, since the motor is transmitted by being decelerated by the gear mechanism, even when a configuration in which the movable body is pressed against the fixed body by the biasing member is adopted, the movable body can be rotated by the rotation of the motor. Further, in the present invention, in configuring the speed reduction mechanism, a plurality of first gears arranged along the first axis and a plurality of second gears arranged along the second axis are used. The gear mechanism includes a first spur gear that meshes with a motor pinion fixed to an output shaft of the motor, and a second spur gear that meshes with the first gear and is coupled to the first spur gear. Passes through the center of rotation of the first spur gear and the second spur gear, so that even when the reduction ratio is increased, the space occupied by the gear mechanism is reduced.

本発明を適用したカメラモジュールを搭載したテレビの説明図である。It is explanatory drawing of the television carrying the camera module to which this invention is applied. 本発明を適用したカメラモジュールの全体構成を示す説明図である。It is explanatory drawing which shows the whole structure of the camera module to which this invention is applied. 本発明を適用したカメラモジュールの内部構成を示す分解斜視図である。It is a disassembled perspective view which shows the internal structure of the camera module to which this invention is applied. 本発明を適用したカメラモジュールに用いた各部材説明図である。It is each member explanatory drawing used for the camera module to which this invention is applied. 本発明を適用したカメラモジュールの平面構成を示す説明図である。It is explanatory drawing which shows the planar structure of the camera module to which this invention is applied.

図面を参照して、本発明を適用したカメラモジュールの一例を説明する。なお、以下の説明において、カメラが正面に向いているときの撮像方向をＸ軸方向とし、Ｘ軸方向に直交する横方向をＹ軸方向とし、Ｘ軸方向およびＹ軸方向に直交する上下方向をＺ軸方向として説明する。また、Ｘ軸方向のうち、被写体が位置する側を一方側＋Ｘとし、被写体が位置する側とは反対の他方側−Ｘとし、Ｙ軸方向のうち、カメラに向かって左側を一方側＋Ｙとし、右側を他方側−Ｙとし、Ｚ軸方向のうち、上側を一方側＋Ｚとし、下側を他方側−Ｚとして説明する。 With reference to the drawings, an example of Kameramoji-menu le according to the present invention. In the following description, the imaging direction when the camera is facing the front is the X-axis direction, the horizontal direction orthogonal to the X-axis direction is the Y-axis direction, and the vertical direction is orthogonal to the X-axis direction and the Y-axis direction. Is described as the Z-axis direction. Also, in the X axis direction, the side where the subject is located is one side + X, the other side -X opposite to the side where the subject is located, and in the Y axis direction, the left side toward the camera is one side + Y. In the following description, the right side is the other side -Y, the upper side is the one side + Z in the Z-axis direction, and the lower side is the other side -Z.

（テレビの全体構成）
図１は、本発明を適用したカメラモジュールを搭載したテレビの説明図である。図１に示すテレビ１００において、テレビ画面１１０の周りは矩形の枠体１２０で囲まれており、枠体１２０の上辺部分１２１には、本発明を適用したカメラモジュール１が搭載されている。カメラモジュール１は、テレビ電話用のカメラ１０と、カメラ１０を支持する固定体８０とを備えており、カメラ１０は、固定体８０を介して枠体１２０に支持されている。このように構成したテレビ１００は、テレビ電話機能を有しており、カメラモジュール１によって撮影した通話者の画像を通話相手に送信する。また、テレビ画面１１０には通話相手が映し出される。 (Overall configuration of TV)
FIG. 1 is an explanatory diagram of a television equipped with a camera module to which the present invention is applied. In the television 100 shown in FIG. 1, the periphery of the television screen 110 is surrounded by a rectangular frame 120, and the camera module 1 to which the present invention is applied is mounted on the upper side portion 121 of the frame 120. The camera module 1 includes a video phone camera 10 and a fixed body 80 that supports the camera 10, and the camera 10 is supported by the frame body 120 via the fixed body 80. The television 100 configured as described above has a videophone function, and transmits a caller's image captured by the camera module 1 to the other party. In addition, the other party is displayed on the television screen 110.

カメラモジュール１において、通話者の顔の高さによってはカメラ１０による撮像方向を上下方向で調節する必要がある。このため、本形態のカメラモジュール１には、後述する駆動装置２０が内蔵されており、駆動装置２０によって、カメラモジュール１内において、カメラ１０をＹ軸方向に延在する回転中心軸線Ｌｃ周りに回転させて撮像方向を調節する。また、テレビ１００を通常のテレビとして使用する際、カメラ１０が露出していると気になることから、本形態では、駆動装置２０によって、カメラモジュール１内において、カメラ１０をＹ軸方向に延在する回転中心軸線Ｌｃ周りに回転させてカメラ１０をカメラモジュール１に用いた固定体８０に隠れるようにする。   In the camera module 1, it is necessary to adjust the imaging direction by the camera 10 in the vertical direction depending on the height of the caller's face. For this reason, the camera module 1 of the present embodiment incorporates a drive device 20 to be described later, and the drive device 20 moves the camera 10 around the rotation center axis Lc extending in the Y-axis direction in the camera module 1. Rotate to adjust the imaging direction. In addition, when the television 100 is used as a normal television, since the camera 10 is anxious if it is exposed, in this embodiment, the camera 10 is extended in the Y-axis direction within the camera module 1 by the driving device 20. The camera 10 is rotated around the existing rotation center axis Lc so as to be hidden by the fixed body 80 used in the camera module 1.

（カメラモジュール１の全体構成）
図２は、本発明を適用したカメラモジュール１の全体構成を示す説明図であり、図２（ａ）、（ｂ）は、カメラ１０が固定体８０に隠れた待機状態における斜視図、および待機状態において上ケースを外した状態の斜視図であり、図２（ｃ）、（ｄ）は、カメラ１０が固定体８０から露出した使用状態における斜視図、および使用状態において上ケースを外した状態の分解斜視図である。図３は、本発明を適用したカメラモジュール１の内部構成を示す分解斜視図である。図４は、本発明を適用したカメラモジュール１に用いた各部材説明図であり、図４（ａ）、（ｂ）は、カメラモジュール１を図３よりさらに細かく分解したときの分解斜視図、および第１歯車等の斜視図である。図５は、カメラモジュール１の平面構成を示す説明図であり、図５（ａ）、（ｂ）は、カメラモジュール１の平面図、および上ケースを外した状態における平面図である。 (Overall configuration of camera module 1)
FIG. 2 is an explanatory diagram showing the overall configuration of the camera module 1 to which the present invention is applied. FIGS. 2A and 2B are a perspective view in a standby state in which the camera 10 is hidden by a fixed body 80, and a standby state. FIGS. 2C and 2D are perspective views of the camera 10 exposed from the fixed body 80 and a state of the upper case removed in the state of use. FIG. FIG. FIG. 3 is an exploded perspective view showing the internal configuration of the camera module 1 to which the present invention is applied. FIG. 4 is an explanatory diagram of each member used in the camera module 1 to which the present invention is applied. FIGS. 4A and 4B are exploded perspective views when the camera module 1 is disassembled more finely than in FIG. It is a perspective view of the first gear and the like. FIG. 5 is an explanatory diagram showing a planar configuration of the camera module 1, and FIGS. 5A and 5B are a plan view of the camera module 1 and a plan view with the upper case removed.

図２、図３、図４および図５に示すように、カメラモジュール１は、カメラ１０を保持する可動体９０と、可動体９０をカメラ１０の撮像方向（Ｘ軸方向の一方側＋Ｘ）と交差するＹ軸方向に延在する回転中心軸線Ｌｃ周りに回転可能に支持する固定体８０と、可動体９０を回転中心軸線Ｌｃ周りに回転させてカメラ１０の撮像方向を切り換える駆動装置２０とを有している。駆動装置２０は、モータ３０と、モータ３０の回転を減速して可動体９０に減速して伝達する歯車機構４０とを備えている。本形態においては、モータ３０としてステッピングモータが用いられている。   As shown in FIGS. 2, 3, 4, and 5, the camera module 1 includes a movable body 90 that holds the camera 10, and the movable body 90 in the imaging direction of the camera 10 (one side + X in the X-axis direction). A fixed body 80 that is rotatably supported around the rotation center axis Lc extending in the intersecting Y axis direction, and a drive device 20 that switches the imaging direction of the camera 10 by rotating the movable body 90 around the rotation center axis Lc. Have. The driving device 20 includes a motor 30 and a gear mechanism 40 that decelerates the rotation of the motor 30 and transmits it to the movable body 90. In this embodiment, a stepping motor is used as the motor 30.

（固定体８０の構成）
図３および図４に示すように、固定体８０は、Ｚ軸方向の寸法がＸ軸方向の寸法やＹ軸方向の寸法に比して短い扁平形状の直方体からなるモジュールケースを構成しており、かかる固定体８０によってカメラモジュール１の外形形状が規定されている。本形態において、固定体８０は、Ｚ軸方向の一方側＋Ｚ（上側）に向けて開放状態にある箱形状の下ケース８１と、下ケース８１の上部開口を塞ぐ四角形の上ケース８２とを備えている。下ケース８１は、Ｚ軸方向の他方側−Ｚに位置する底板部８１０と、底板部８１０の外縁からＺ軸方向の一方側＋Ｚに向けて起立した４つの側板部８１１、８１２、８１３、８１４とを備えている。下ケース８１において、Ｘ軸方向の他方側−Ｘに位置する側板部８１３には矩形の切り欠きが形成されており、かかる切り欠きは基板８８によって塞がれている。また、側板部８１１には、カメラ１０を露出させる矩形の切り欠き８１１ｓと、後述する平歯車９９を配置するスペースを確保するための切り欠き８１１ｔとが形成されている。 (Configuration of fixed body 80)
As shown in FIG. 3 and FIG. 4, the fixed body 80 constitutes a module case made of a rectangular parallelepiped whose Z-axis direction is shorter than the X-axis or Y-axis. The fixed body 80 defines the outer shape of the camera module 1. In this embodiment, the fixed body 80 includes a box-shaped lower case 81 that is open toward one side + Z (upper side) in the Z-axis direction, and a rectangular upper case 82 that closes the upper opening of the lower case 81. ing. The lower case 81 includes a bottom plate portion 810 positioned on the other side −Z in the Z-axis direction, and four side plate portions 811, 812, 813, and 814 erected from the outer edge of the bottom plate portion 810 toward one side + Z in the Z-axis direction. And. In the lower case 81, a rectangular notch is formed in the side plate portion 813 located on the other side −X in the X-axis direction, and the notch is closed by the substrate 88. Further, the side plate portion 811 is formed with a rectangular notch 811s for exposing the camera 10 and a notch 811t for securing a space for placing a spur gear 99 described later.

固定体８０において、下ケース８１の側板部８１１、８１２、８１３、８１４の外面には複数の突起８１９が形成されており、上ケース８２の外縁には突起８１９に係合する複数のフック８２９が形成されている。このため、下ケース８１に上ケース８２を被せる際にフック８２９と突起８１９とを係合させれば、下ケース８１と上ケース８２とを結合することができる。また、下ケース８１の底板部８１０には、Ｙ軸方向の中央、かつ、Ｘ軸方向の他方側−Ｘ寄りの位置に、ねじ穴８１８ａが形成された肉厚の座部８１８が形成されている一方、上ケース８２においてねじ穴８１８ａに重なる位置には貫通穴８２８が形成されている。従って、フック８２９と突起８１９との係合によって下ケース８１と上ケース８２とを結合させた後、貫通穴８２８からねじ穴８１８ａにネジ８９を止めれば、下ケース８１と上ケース８２とをさらに結合させることができる。   In the fixed body 80, a plurality of protrusions 819 are formed on the outer surfaces of the side plate portions 811, 812, 813, and 814 of the lower case 81, and a plurality of hooks 829 that engage with the protrusions 819 are formed on the outer edge of the upper case 82. Is formed. Therefore, when the upper case 82 is put on the lower case 81, the lower case 81 and the upper case 82 can be coupled by engaging the hook 829 and the protrusion 819. The bottom plate portion 810 of the lower case 81 has a thick seat portion 818 having a screw hole 818a formed at the center in the Y-axis direction and at a position near the other side -X in the X-axis direction. On the other hand, a through hole 828 is formed in the upper case 82 at a position overlapping the screw hole 818a. Therefore, after the lower case 81 and the upper case 82 are coupled by the engagement of the hook 829 and the protrusion 819, the screw 89 is fixed to the screw hole 818a from the through hole 828, thereby further connecting the lower case 81 and the upper case 82. Can be combined.

（可動体９０の構成）
可動体９０は、回転中心軸線Ｌｃに沿ってＹ軸方向に延在する棒状部材であり、可動体９０のＹ軸方向の一方側＋Ｙにおいてカメラ１０を内側に保持する大径部９１と、大径部９１に対してＹ軸方向の他方側−Ｙに連接する中径部９５と、中径部９５に対してＹ軸方向の他方側−Ｙに連接する小径部９６と、小径部９６より小の径寸法をもって小径部９６に対してＹ軸方向の他方側−Ｙに連接する第１軸部９７とを備えている。大径部９１の周面の一部には平坦面９１１が形成されており、かかる平坦面９１１には、カメラ１０のレンズを露出させる円形の穴９１２が形成されている。 (Configuration of movable body 90)
The movable body 90 is a rod-like member extending in the Y-axis direction along the rotation center axis Lc, and has a large-diameter portion 91 that holds the camera 10 inside on one side + Y of the movable body 90 in the Y-axis direction, From the medium diameter part 95 connected to the other side -Y in the Y axis direction with respect to the diameter part 91, the small diameter part 96 connected to the other side -Y in the Y axis direction to the medium diameter part 95, and the small diameter part 96 A first shaft portion 97 having a small diameter dimension and connected to the other side -Y in the Y-axis direction with respect to the small diameter portion 96 is provided. A flat surface 911 is formed on a part of the peripheral surface of the large-diameter portion 91, and a circular hole 912 that exposes the lens of the camera 10 is formed in the flat surface 911.

また、可動体９０は、大径部９１に対してＹ軸方向の一方側＋Ｙに連接する第２軸部９８（図５参照）を備えている。一方、固定体８０では、Ｙ軸方向の一方側＋Ｙに位置する側板部８１４の内面に第２軸部９８を回転可能に支持する受け部８１４ｅが上下方向に延在する溝状に形成され、底板部８１０の上面には、第１軸部９７を回転可能に支持する溝状の受け部８１０ｅが形成されている。このようにして、可動体９０は固定体８０によってＹ軸方向に延在する回転中心軸線Ｌｃ周りに回転可能に支持されている。また、底板部８１０の上面には、小径部９６が内側に位置する溝状凹部８１０ｆが形成されており、かかる溝状凹部８１０ｆには、小径部９６の外周面に所定の角度範囲にわたって形成された切り欠き９６ｆの端部（段部）と干渉して可動体９０の回転を規定する凸状のストッパ８１０ｇ（図５（ｂ）参照）が形成されている。このため、本形態では、小径部９６とストッパ８１０ｇとが干渉した位置をカメラ１０が下向きになった初期位置（待機位置）として設定されている。従って、可動体９０を組み込み際に可動体９０の角度位置を調整しなくても、カメラ１０の初期位置を規定することができるとともに、モータ３０に供給する駆動電流の送りパルスの数によって可動体９０（カメラ１０）の向きを制御することができる。また、カメラモジュール１を駆動した際、カウンタおよびメモリ等を用いて、小径部９６とストッパ８１０ｇとが干渉した位置を基準に前回の可動体９０の角度位置を記憶しておけば、再度、可動体９０を前回の角度位置まで復帰させるのが容易である。なお、下ケース８１の底板部８１０および上ケース８２において可動体９０の大径部９１と重なる位置は湾曲した凹部になっており、底板部８１０や上ケース８２が大径部９１と接しないようになっている。   In addition, the movable body 90 includes a second shaft portion 98 (see FIG. 5) that is connected to one side + Y in the Y-axis direction with respect to the large-diameter portion 91. On the other hand, in the fixed body 80, a receiving portion 814e that rotatably supports the second shaft portion 98 is formed in a groove shape extending in the vertical direction on the inner surface of the side plate portion 814 located on one side + Y in the Y axis direction. A groove-shaped receiving portion 810e that rotatably supports the first shaft portion 97 is formed on the upper surface of the bottom plate portion 810. In this manner, the movable body 90 is supported by the fixed body 80 so as to be rotatable around the rotation center axis Lc extending in the Y-axis direction. Further, a groove-shaped recess 810f in which the small-diameter portion 96 is located inside is formed on the upper surface of the bottom plate portion 810, and the groove-shaped recess 810f is formed on the outer peripheral surface of the small-diameter portion 96 over a predetermined angle range. A convex stopper 810g (see FIG. 5B) that defines the rotation of the movable body 90 by interfering with the end portion (step portion) of the notch 96f is formed. For this reason, in this embodiment, the position where the small diameter portion 96 and the stopper 810g interfere with each other is set as the initial position (standby position) where the camera 10 faces downward. Therefore, the initial position of the camera 10 can be defined without adjusting the angular position of the movable body 90 when the movable body 90 is assembled, and the movable body can be determined according to the number of drive current feed pulses supplied to the motor 30. The direction of the camera 90 (camera 10) can be controlled. Further, when the camera module 1 is driven, if the previous angular position of the movable body 90 is stored with reference to the position where the small diameter portion 96 and the stopper 810g interfere with each other using a counter, a memory, etc., the camera module 1 is movable again. It is easy to return the body 90 to the previous angular position. In the bottom plate portion 810 and the upper case 82 of the lower case 81, the position overlapping the large diameter portion 91 of the movable body 90 is a curved concave portion so that the bottom plate portion 810 and the upper case 82 do not contact the large diameter portion 91. It has become.

（駆動装置２０の構成）
図３、図４および図５に示すように、駆動装置２０は、モータ３０と、モータ３０の回転を減速して可動体９０に減速して伝達する歯車機構４０とを備えており、モータ３０は、可動体９０の大径部９１に対してＸ軸方向の他方側−Ｘで離間する位置に、モータ軸線ＬｍがＹ軸方向に延在するように配置されている。モータ３０は、モータ本体３８の外周面のうち、Ｘ軸方向の他方側−Ｘに位置する部分に端子３２が配置されており、端子３２は基板８８の穴８８１を貫通して基板８８からＸ軸方向の他方側−Ｘに向けて突出した状態にある。従って、端子３２を介して外部からモータ３０に給電可能である。 (Configuration of the driving device 20)
As shown in FIGS. 3, 4, and 5, the driving device 20 includes a motor 30 and a gear mechanism 40 that decelerates and transmits the rotation of the motor 30 to the movable body 90. Are arranged such that the motor axis Lm extends in the Y-axis direction at a position spaced apart from the large-diameter portion 91 of the movable body 90 on the other side -X in the X-axis direction. In the motor 30, a terminal 32 is disposed on a portion of the outer peripheral surface of the motor main body 38 located on the other side −X in the X-axis direction. The terminal 32 passes through the hole 881 of the substrate 88 and extends from the substrate 88. It is in a state of protruding toward the other side -X in the axial direction. Therefore, power can be supplied to the motor 30 from the outside via the terminal 32.

モータ３０においては、モータ本体３８からＹ軸方向の一方側＋Ｙに向けて出力軸３５が突出している。また、モータ本体３８のＹ軸方向の一方側＋Ｙの面には端板３１が固着されており、モータ本体３８は、端板３１を介して下ケース８１の底板部８１０に位置決めされている。上ケース８２には、３方が切り欠かれた弾性板部８２５が形成されており、下ケース８１の底板部８１０と上ケース８２との間にモータ本体３８を挟むように下ケース８１と上ケース８２と結合させると、モータ本体３８が弾性板部８２５に当接して弾性板部８２５が撓む結果、モータ本体３８は、弾性板部８２５によって底板部８１０に弾性をもって押圧された状態となる。   In the motor 30, the output shaft 35 protrudes from the motor body 38 toward one side + Y in the Y-axis direction. Further, an end plate 31 is fixed to one side + Y surface of the motor main body 38 in the Y-axis direction, and the motor main body 38 is positioned on the bottom plate portion 810 of the lower case 81 via the end plate 31. The upper case 82 is formed with an elastic plate portion 825 that is cut out in three directions, and the upper case 82 and the upper case 82 are sandwiched between the bottom plate portion 810 of the lower case 81 and the upper case 82. When coupled with the case 82, the motor main body 38 comes into contact with the elastic plate portion 825 and the elastic plate portion 825 is bent. As a result, the motor main body 38 is elastically pressed against the bottom plate portion 810 by the elastic plate portion 825. .

（歯車機構４０の構成）
歯車機構４０は、モータ３０の出力軸３５に固着された平歯車からなるモータピニオン４１と、モータピニオン４１に対してＸ軸方向の一方側＋Ｘで隣接する位置でモータピニオン４１に噛合する平歯車４２と、平歯車４２からＹ軸方向の他方側−Ｙに向けて延在する円筒体４８を介して平歯車４２に連結された平歯車４３とを備えている。 (Configuration of gear mechanism 40)
The gear mechanism 40 includes a motor pinion 41 composed of a spur gear fixed to the output shaft 35 of the motor 30 and a spur gear that meshes with the motor pinion 41 at a position adjacent to the motor pinion 41 on one side + X in the X-axis direction. 42 and a spur gear 43 connected to the spur gear 42 via a cylindrical body 48 extending from the spur gear 42 toward the other side -Y in the Y-axis direction.

また、歯車機構４０は、第１軸線Ｌ１周りに回転可能な複数の第１歯車５１、５２と、第１軸線Ｌ１と平行に並列する第２軸線Ｌ２周りに回転可能な複数の第２歯車６１、６２とを含んでいる。   In addition, the gear mechanism 40 includes a plurality of first gears 51 and 52 that can rotate around the first axis L1, and a plurality of second gears 61 that can rotate around the second axis L2 parallel to the first axis L1. , 62.

第１軸線Ｌ１は、モータ３０に対してＹ軸方向の他方側−Ｙでモータ軸線Ｌｍの延長線上に位置している。より具体的には、第１軸線Ｌ１上（モータ軸線Ｌｍの延長線上）には、Ｙ軸方向に延在する第１支軸２１が配置されており、かかる第１支軸２１に第１歯車５１が回転可能に支持され、第１歯車５１に対してＹ軸方向の他方側−Ｙで隣り合う位置では、第２歯車５２が第１支軸２１に回転可能に支持されている。本形態では、第１支軸２１のＹ軸方向の一方側＋Ｙの端部は、座部８１８のＹ軸方向の他方側−Ｙの面に溝状に形成された受け部８１８ｆに保持され、第１支軸２１のＹ軸方向の他方側−Ｙの端部は、側板部８１２の内面に溝状に形成された受け部８１２ｆに保持されている。   The first axis L <b> 1 is located on the extension line of the motor axis Lm on the other side −Y in the Y axis direction with respect to the motor 30. More specifically, a first support shaft 21 extending in the Y-axis direction is disposed on the first axis L1 (on the extension line of the motor axis Lm), and a first gear is attached to the first support shaft 21. 51 is rotatably supported, and the second gear 52 is rotatably supported by the first support shaft 21 at a position adjacent to the first gear 51 on the other side -Y in the Y-axis direction. In this embodiment, the end on the one side + Y in the Y-axis direction of the first support shaft 21 is held by a receiving portion 818f formed in a groove shape on the surface on the other side -Y in the Y-axis direction of the seat 818, The end portion on the other side -Y in the Y-axis direction of the first support shaft 21 is held by a receiving portion 812f formed in a groove shape on the inner surface of the side plate portion 812.

第２軸線Ｌ２は、モータ軸線Ｌｍと回転中心軸線Ｌｃとの間（第１軸線Ｌ１と回転中心軸線Ｌｃとの間）に設定されており、平歯車４２、４３の回転中心を通っている。このため、平歯車４２、４３も、第２歯車６１、６２と同様、第２軸線Ｌ２周りに回転する。より具体的には、第２軸線Ｌ２上には、Ｙ軸方向に延在する第２支軸２２が配置されており、かかる第２支軸２２は、両端に平歯車４２、４３が固着された円筒体４８の内側を貫通している。このため、円筒体４８および平歯車４２、４３は、第２支軸２２周り（第２軸線Ｌ２周り）に回転可能である。また、第２支軸２２において、平歯車４３に対してＹ軸方向の他方側−Ｙで隣り合う位置には第２歯車６１が回転可能に支持され、第２歯車６１に対してＹ軸方向の他方側−Ｙで隣り合う位置では、第２歯車６２が第２支軸２２に回転可能に支持されている。本形態では、第２支軸２２のＹ軸方向の一方側＋Ｙの端部は、側板部８１４の内面に溝状に形成された受け部８１４ｇに保持され、第２支軸２２のＹ軸方向の他方側−Ｙの端部は、側板部８１２の内面に溝状に形成された受け部８１２ｇに保持されている。   The second axis L2 is set between the motor axis Lm and the rotation center axis Lc (between the first axis L1 and the rotation center axis Lc), and passes through the rotation centers of the spur gears 42 and 43. For this reason, the spur gears 42 and 43 also rotate around the second axis L2 similarly to the second gears 61 and 62. More specifically, a second support shaft 22 extending in the Y-axis direction is disposed on the second axis L2, and the spur gears 42 and 43 are fixed to both ends of the second support shaft 22. The inside of the cylindrical body 48 is penetrated. For this reason, the cylindrical body 48 and the spur gears 42 and 43 are rotatable around the second support shaft 22 (around the second axis L2). In the second support shaft 22, the second gear 61 is rotatably supported at a position adjacent to the spur gear 43 on the other side −Y in the Y-axis direction. The second gear 62 is rotatably supported by the second support shaft 22 at a position adjacent to the other side -Y. In this embodiment, the end on one side + Y in the Y-axis direction of the second support shaft 22 is held by a receiving portion 814g formed in a groove shape on the inner surface of the side plate portion 814, and the Y-axis direction of the second support shaft 22 The other side -Y end is held by a receiving portion 812g formed in a groove shape on the inner surface of the side plate portion 812.

このように構成した駆動装置２０において、平歯車４３は、第１歯車５１と噛合している。このため、モータ３０が回転すると、モータ３０の回転は、モータピニオン４１から平歯車４２に伝達された後、円筒体４８を介して平歯車４３に伝達され、その後、平歯車４３の回転は、第１歯車５１、第２歯車６１、第１歯車５２、および第２歯車６２の順に伝達されて、可動体９０の第１軸部９７のＹ軸方向の他方側−Ｙの端部に固着された平歯車９９に伝達される。このため、モータ３０の回転が可動体９０に伝達される結果、可動体９０が回転中心軸線Ｌｃ周りに回転する。   In the drive device 20 configured as described above, the spur gear 43 is engaged with the first gear 51. For this reason, when the motor 30 rotates, the rotation of the motor 30 is transmitted from the motor pinion 41 to the spur gear 42 and then transmitted to the spur gear 43 via the cylindrical body 48. Thereafter, the rotation of the spur gear 43 is The first gear 51, the second gear 61, the first gear 52, and the second gear 62 are transmitted in this order, and are fixed to the other-Y end in the Y-axis direction of the first shaft portion 97 of the movable body 90. Is transmitted to the spur gear 99. For this reason, as a result of the rotation of the motor 30 being transmitted to the movable body 90, the movable body 90 rotates around the rotation center axis Lc.

ここで、平歯車４２はモータピニオン４１より外径が大であり、モータ３０の回転は、減速して平歯車４２に伝達された後、平歯車４３から第１歯車５１、第２歯車６１、第１歯車５２、および第２歯車６２を経て平歯車９９に伝達されるまでの間でも減速される。より具体的には、第１歯車５１、５２および第２歯車６１、６２は各々、大径歯車に対してＹ軸方向の他方側−Ｙ（第１軸線Ｌ１の方向および第２軸線Ｌ２の方向における同一側）に小径歯車が一体化されている複合歯車であり、以下に説明するように、大径歯車と小径歯車とが噛合して減速機構を構成している。   Here, the spur gear 42 has a larger outer diameter than the motor pinion 41, and the rotation of the motor 30 is decelerated and transmitted to the spur gear 42, and then the first gear 51, the second gear 61, The speed is also reduced until it is transmitted to the spur gear 99 via the first gear 52 and the second gear 62. More specifically, each of the first gears 51 and 52 and the second gears 61 and 62 is the other side in the Y-axis direction with respect to the large-diameter gear -Y (the direction of the first axis L1 and the direction of the second axis L2). And a small-diameter gear integrated with each other on the same side). As will be described below, the large-diameter gear and the small-diameter gear mesh with each other to form a reduction mechanism.

まず、第１歯車５１は、大径歯車５１１に対してＹ軸方向の他方側−Ｙに大径歯車５１１より小径の小径歯車５１２が一体化されている複合歯車であり、第１歯車５２は、大径歯車５２１に対してＹ軸方向の他方側−Ｙに大径歯車５２１より小径の小径歯車５２２が一体化されている複合歯車である。第２歯車６１は、大径歯車６１１に対してＹ軸方向の他方側−Ｙに大径歯車６１１より小径の小径歯車６１２が一体化されている複合歯車であり、第２歯車６２は、大径歯車６２１に対してＹ軸方向の他方側−Ｙに大径歯車６２１より小径の小径歯車６２２が一体化されている複合歯車である。ここで、大径歯車５１１、５２１、６１１、６２１はいずれも外径寸法が同一であり、小径歯車５１２、５２２、６１２、６２２はいずれも外径寸法が同一である。   First, the first gear 51 is a compound gear in which a small-diameter gear 512 having a smaller diameter than the large-diameter gear 511 is integrated with the large-diameter gear 511 on the other side -Y in the Y-axis direction. The composite gear is obtained by integrating a small-diameter gear 522 having a smaller diameter than the large-diameter gear 521 on the other side -Y in the Y-axis direction with respect to the large-diameter gear 521. The second gear 61 is a compound gear in which a small-diameter gear 612 smaller in diameter than the large-diameter gear 611 is integrated with the large-diameter gear 611 on the other side -Y in the Y-axis direction. This is a composite gear in which a small-diameter gear 622 having a smaller diameter than the large-diameter gear 621 is integrated with the radial gear 621 on the other side -Y in the Y-axis direction. Here, the large diameter gears 511, 521, 611, 621 all have the same outer diameter, and the small diameter gears 512, 522, 612, 622 all have the same outer diameter.

また、平歯車４３は、第１歯車５１の大径歯車５１１に噛合しており、大径歯車５１１の外径寸法は平歯車４３の外径寸法より大である。第１歯車５１の小径歯車５１２は第２歯車６１の大径歯車６１１に噛合し、第２歯車６１の小径歯車６１２は第１歯車５２の大径歯車５２１に噛合している。また、第１歯車５２の小径歯車５２２は第２歯車６２の大径歯車６２１に噛合し、第２歯車６２の小径歯車６２２は平歯車９９に噛合している。ここで、平歯車９９の外径寸法は小径歯車６２２の外径寸法より大である。このため、平歯車４３から平歯車９９までの歯車列では、歯車間で回転が伝達される度に減速される。   Further, the spur gear 43 meshes with the large diameter gear 511 of the first gear 51, and the outer diameter dimension of the large diameter gear 511 is larger than the outer diameter dimension of the spur gear 43. The small diameter gear 512 of the first gear 51 meshes with the large diameter gear 611 of the second gear 61, and the small diameter gear 612 of the second gear 61 meshes with the large diameter gear 521 of the first gear 52. The small diameter gear 522 of the first gear 52 meshes with the large diameter gear 621 of the second gear 62, and the small diameter gear 622 of the second gear 62 meshes with the spur gear 99. Here, the outer diameter dimension of the spur gear 99 is larger than the outer diameter dimension of the small diameter gear 622. For this reason, the gear train from the spur gear 43 to the spur gear 99 is decelerated each time rotation is transmitted between the gears.

（バックラッシュ防止用の付勢部材の構成）
本形態では、モータ３０の回転を可動体９０まで複数の歯車からなる歯車機構４０によって伝達しているため、歯車同士のバックラッシュの影響が大であり、可動体９０の回転中心軸線Ｌｃ周りの角度位置（カメラ１０の撮像方向）が変動しやすい。そこで、本形態では、可動体９０を固定体８０に向けて押し付ける付勢部材７０が設けられている。 (Configuration of urging member for preventing backlash)
In this embodiment, since the rotation of the motor 30 is transmitted to the movable body 90 by the gear mechanism 40 including a plurality of gears, the influence of backlash between the gears is large, and the rotation around the rotation center axis Lc of the movable body 90 is large. The angular position (imaging direction of the camera 10) is likely to fluctuate. Therefore, in this embodiment, an urging member 70 that presses the movable body 90 toward the fixed body 80 is provided.

より具体的には、可動体９０の第１軸部９７には、コイルばねからなる付勢部材７０が装着されており、付勢部材７０に対して小径部９６とは反対側（Ｙ軸方向の他方側−Ｙ）にはリング状のワッシャ７１が装着されている。この状態で、可動体９０を下ケース８１上に搭載する際、ワッシャ７１の付勢部材７０とは反対側の面（Ｙ軸方向の他方側−Ｙの面）が、下ケース８１において受け部８１０ｅが形成された壁８１０ｈのＹ軸方向の一方側＋Ｙの面に当接させる。その結果、付勢部材７０が可動体９０の回転中心軸線Ｌｃ方向で圧縮された状態となり、小径部９６を介して可動体９０をＹ軸方向の一方側＋Ｙ（回転中心軸線Ｌｃ方向）に付勢する。このため、可動体９０の第２軸部９８のＹ軸方向の一方側＋Ｙの端部は、側板部８１４に形成された受け部８１４ｅに支持された状態のまま、受け部８１４ｅ内において側板部８１４の内面に弾性をもって当接する。従って、モータ３０によって駆動されない限り、可動体９０は、回転中心軸線Ｌｃ周りに不用意に回転することがない。   More specifically, a biasing member 70 made of a coil spring is attached to the first shaft portion 97 of the movable body 90, and the biasing member 70 is opposite to the small diameter portion 96 (Y-axis direction). On the other side -Y), a ring-shaped washer 71 is mounted. In this state, when the movable body 90 is mounted on the lower case 81, the surface opposite to the urging member 70 of the washer 71 (the other side in the Y-axis direction—the Y surface) is the receiving portion of the lower case 81. The wall 810h formed with 810e is brought into contact with the surface on the one side + Y in the Y-axis direction. As a result, the urging member 70 is compressed in the direction of the rotation center axis Lc of the movable body 90, and the movable body 90 is applied to one side in the Y axis direction + Y (direction of the rotation center axis Lc) via the small diameter portion 96. Rush. For this reason, the one side + Y end portion in the Y-axis direction of the second shaft portion 98 of the movable body 90 is supported by the receiving portion 814e formed on the side plate portion 814, and the side plate portion in the receiving portion 814e. It abuts on the inner surface of 814 with elasticity. Therefore, unless it is driven by the motor 30, the movable body 90 does not rotate carelessly around the rotation center axis Lc.

（動作および本形態の主な効果）
本形態のテレビ１００においては、テレビ１００でテレビ画像を見るとき、図２（ａ）、（ｂ）に示すように、可動体９０は、カメラ１０および穴９１２が下向き（Ｚ軸方向の他方側−Ｚ）となる角度位置にある（待機状態）。この状態において、カメラ１０は、固定体８０に隠れた状態にある。また、待機状態では、図３等を参照して説明した小径部９６の切り欠き９６ｆの端部（段部）と下ケース８１側のストッパ８１０ｇとが干渉した状態にある。 (Operation and main effects of this form)
In the television 100 of this embodiment, when a television image is viewed on the television 100, as shown in FIGS. 2A and 2B, the movable body 90 has the camera 10 and the hole 912 facing downward (the other side in the Z-axis direction). -Z) at an angular position (standby state). In this state, the camera 10 is hidden by the fixed body 80. In the standby state, the end portion (stepped portion) of the notch 96f of the small diameter portion 96 described with reference to FIG. 3 and the like and the stopper 810g on the lower case 81 side interfere with each other.

この状態から、テレビ１００をテレビ電話として利用する場合、テレビ本体に設けられているスイッチやリモコンスイッチを操作してモータ３０を作動させる。その結果、モータ３０の回転は、歯車機構４０によって可動体９０に伝達されるので、可動体９０が回転中心軸線Ｌｃ周りに９０°回転し、図２（ｃ）、（ｄ）に示すように、可動体９０は、カメラ１０および穴９１２が前向き（Ｘ軸方向の一方側＋Ｘ）となる角度位置に移行する（使用状態）。その際、カメラ１０による撮像方向を通話者の顔の高さに合わせたいときには、テレビ本体に設けられているスイッチやリモコンスイッチを操作してモータ３０を作動させる。その結果、モータ３０の回転は、歯車機構４０によって可動体９０に伝達されるので、カメラ１０の撮像方向を所定の方向に合わせることができる。その際、歯車機構４０は減速機構として構成されているので、カメラ１０の撮像方向を容易に調整することができる。特に本形態では、多数の歯車によって、歯車機構４０を構成しているため、減速比が大きい。従って、カメラ１０の撮像方向を高い分解能をもって調整することができる。また、減速機構を歯車機構４０によって構成したため、ベルト機構を用いた場合に比して駆動装置２０が占有するスペースを縮小することができる。それ故、カメラモジュール１の小型化を図ることができる。また、本形態では、多数の歯車を備えた歯車機構４０によって減速機構を構成するにあたって、可動体９０を回転中心軸線Ｌｃの方向に付勢して固定体８０に押し付ける付勢部材７０が設けられている。このため、歯車機構４０にバックラッシュがある場合でも、可動体９０が不用意に回転しないので、カメラ１０の撮像方向がぶれない。それ故、カメラ１０を任意の方向に安定して向かせることができる。また、モータ３０は、歯車機構４０によって減速して伝達されるので、付勢部材７０によって可動体９０を固定体８０に向けて押し付けた構成を採用した場合でも、モータ３０の回転によって可動体９０を回転させることができる。   In this state, when the television 100 is used as a videophone, the motor 30 is operated by operating a switch or a remote control switch provided in the television body. As a result, since the rotation of the motor 30 is transmitted to the movable body 90 by the gear mechanism 40, the movable body 90 rotates 90 ° around the rotation center axis Lc, as shown in FIGS. 2 (c) and 2 (d). The movable body 90 shifts to an angular position where the camera 10 and the hole 912 face forward (one side in the X-axis direction + X) (use state). At this time, when it is desired to match the image capturing direction of the camera 10 to the height of the caller's face, the motor 30 is operated by operating a switch or a remote control switch provided on the television main body. As a result, since the rotation of the motor 30 is transmitted to the movable body 90 by the gear mechanism 40, the imaging direction of the camera 10 can be adjusted to a predetermined direction. At this time, since the gear mechanism 40 is configured as a speed reduction mechanism, the imaging direction of the camera 10 can be easily adjusted. In particular, in the present embodiment, the gear mechanism 40 is constituted by a large number of gears, and thus the reduction ratio is large. Therefore, the imaging direction of the camera 10 can be adjusted with high resolution. Further, since the speed reduction mechanism is constituted by the gear mechanism 40, the space occupied by the drive device 20 can be reduced as compared with the case where the belt mechanism is used. Therefore, the camera module 1 can be downsized. Further, in this embodiment, when the speed reduction mechanism is configured by the gear mechanism 40 having a large number of gears, a biasing member 70 that biases the movable body 90 in the direction of the rotation center axis Lc and presses it against the fixed body 80 is provided. ing. For this reason, even when the gear mechanism 40 has a backlash, the movable body 90 does not rotate carelessly, so that the imaging direction of the camera 10 is not blurred. Therefore, the camera 10 can be stably directed in an arbitrary direction. Further, since the motor 30 is transmitted by being decelerated by the gear mechanism 40, even when the configuration in which the movable body 90 is pressed against the fixed body 80 by the biasing member 70 is adopted, the movable body 90 is rotated by the rotation of the motor 30. Can be rotated.

そして、テレビ電話による通話が終了して、テレビ画像を見るとき、テレビ本体に設けられているスイッチやリモコンスイッチを操作してモータ３０を作動させると、図２（ａ）、（ｂ）に示すように、可動体９０は、カメラ１０および穴９１２が下向き（Ｚ軸方向の他方側−Ｚ）となる角度位置に戻り、カメラ１０は、固定体８０に隠れた状態となる（待機状態）。このように、カメラ１０を使用しない待機状態では、カメラ１０を固定体８０に隠れた状態とすることができるので、カメラ１０が汚れるのを防止することができるとともに、カメラ１０の存在が気になるという事態を回避することができる。   Then, when the videophone call is finished and a TV image is viewed, the motor 30 is operated by operating a switch or a remote control switch provided on the TV main body, as shown in FIGS. 2 (a) and 2 (b). As described above, the movable body 90 returns to the angular position where the camera 10 and the hole 912 face downward (the other side in the Z-axis direction—Z), and the camera 10 is hidden by the fixed body 80 (standby state). As described above, in the standby state in which the camera 10 is not used, the camera 10 can be hidden by the fixed body 80, so that the camera 10 can be prevented from being contaminated and the presence of the camera 10 is a concern. Can be avoided.

また、本形態において、歯車機構４０は、第１軸線Ｌ１周りに回転可能な第１歯車５１、５２と、第１軸線Ｌ１と平行に並列する第２軸線Ｌ２周りに回転可能な第２歯車６１、６２とを含み、モータ３０の回転は、第１歯車５１、５２および第２歯車６１、６２の間での伝達が行われる度に減速して可動体９０に伝達される。このため、歯車の数を増やして減速比を大きくしても、歯車機構４０（減速機構）が占有するスペースが狭く済む。しかも、第１歯車５１、５２および第２歯車６１、６２は各々、大径歯車に対して同一側に小径歯車が一体化されている複合歯車であり、第１歯車５１、５２と第２歯車６１、６２では、一方の歯車の大径歯車と他方の歯車の小径歯車とが噛合している。このため、減速比を大きくした場合でも、歯車機構４０（減速機構）が占有するスペースが狭く済む。   In this embodiment, the gear mechanism 40 includes the first gears 51 and 52 that can rotate around the first axis L1, and the second gear 61 that can rotate around the second axis L2 parallel to the first axis L1. , 62, and the rotation of the motor 30 is decelerated and transmitted to the movable body 90 every time transmission between the first gears 51, 52 and the second gears 61, 62 is performed. For this reason, even if the number of gears is increased and the reduction ratio is increased, the space occupied by the gear mechanism 40 (reduction mechanism) is reduced. Moreover, each of the first gears 51 and 52 and the second gears 61 and 62 is a compound gear in which a small-diameter gear is integrated on the same side with respect to the large-diameter gear. In 61 and 62, the large-diameter gear of one gear meshes with the small-diameter gear of the other gear. For this reason, even when the reduction ratio is increased, the space occupied by the gear mechanism 40 (reduction mechanism) can be reduced.

また、モータ３０のモータ軸線Ｌｍは、第１軸線Ｌ１の延長線上にある。このため、モータ３０と第１歯車５１，５２とをＹ軸方向で隣り合う位置に配置できる等、モータ３０と歯車機構４０とを占有するスペースが狭く済む。また、可動体９０の回転中心軸線Ｌｃは、第１軸線Ｌ１および第２軸線Ｌ２と平行に延在しているため、歯車機構４０では、簡素な構成で所定の歯車同士を噛合させることができる。従って、可動体９０および歯車機構４０が占有するスペースが狭く済む。さらに、複数の第１歯車５１、５２は各々、第１軸線Ｌ１上で延在する共通の第１支軸２１に回転可能に支持され、複数の第２歯車６１、６２は各々、第２軸線Ｌ２上で延在する共通の第２支軸２２に回転可能に支持されている。このため、複数の第１歯車５１、５２における支軸を第１支軸２１として共通化でき、複数の第２歯車６１、６２における支軸を第２支軸２２として共通化できるので、部品点数の削減を図ることができるとともに、歯車機構４０が占有するスペースが狭く済む。   Further, the motor axis Lm of the motor 30 is on an extension line of the first axis L1. For this reason, the space which occupies the motor 30 and the gear mechanism 40 can be reduced, for example, the motor 30 and the first gears 51 and 52 can be arranged at positions adjacent to each other in the Y-axis direction. Further, since the rotation center axis Lc of the movable body 90 extends in parallel with the first axis L1 and the second axis L2, the gear mechanism 40 can mesh predetermined gears with a simple configuration. . Therefore, the space occupied by the movable body 90 and the gear mechanism 40 can be reduced. Further, each of the plurality of first gears 51 and 52 is rotatably supported by a common first support shaft 21 extending on the first axis L1, and each of the plurality of second gears 61 and 62 is each of a second axis. It is rotatably supported by a common second support shaft 22 extending on L2. For this reason, the support shafts of the plurality of first gears 51 and 52 can be shared as the first support shaft 21, and the support shafts of the plurality of second gears 61 and 62 can be shared as the second support shaft 22. And the space occupied by the gear mechanism 40 can be reduced.

しかも、第１軸線Ｌ１および第２軸線Ｌ２は、可動体９０の回転中心軸線Ｌｃに対して撮像方向とは反対側に向かって配列されており、第１軸線Ｌ１、第２軸線Ｌ２および回転中心軸線Ｌｃは同一のＸＹ平面内で回転中心軸線Ｌｃ、第２軸線Ｌ２、および第１軸線Ｌ１の順に配列されている。このため、カメラモジュール１を７ｍｍ程度まで扁平化することができるので、被写体側（Ｘ軸方向の一方側＋Ｘ）からみたとき、カメラモジュール１が占める領域が狭く済む。従って、テレビ画面１１０を囲む枠部分１２０にカメラモジュール１を納めることができる。   Moreover, the first axis L1 and the second axis L2 are arranged toward the opposite side of the imaging direction with respect to the rotation center axis Lc of the movable body 90, and the first axis L1, the second axis L2, and the rotation center are arranged. The axis Lc is arranged in the order of the rotation center axis Lc, the second axis L2, and the first axis L1 in the same XY plane. For this reason, since the camera module 1 can be flattened to about 7 mm, the area occupied by the camera module 1 can be reduced when viewed from the subject side (one side in the X-axis direction + X). Therefore, the camera module 1 can be stored in the frame portion 120 surrounding the television screen 110.

［別の実施の形態］
上記実施の形態では、付勢部材７０としてコイルばねを用いたが、板バネ等の付勢部材７０によって可動体９０を回転中心軸線Ｌｃの方向に付勢して固定体８０に押し付けてもよい。 [Another embodiment]
In the above embodiment, a coil spring is used as the urging member 70. However, the movable body 90 may be urged in the direction of the rotation center axis Lc by the urging member 70 such as a leaf spring and pressed against the fixed body 80. .

上記実施の形態では、テレビ電話用のカメラモジュール１を例示したが、被写体の人物の動きを分析してテレビあるいはテレビに接続されている機器に対する指示を入力するカメラモジュール１に本発明を適用してもよい。また、テレビ電話以外にも、パーソナルコンピュータ用、携帯端末用、監視カメラ用等のカメラモジュール１に本発明を適用してもよい。   In the above embodiment, the camera module 1 for videophone is exemplified. However, the present invention is applied to the camera module 1 that analyzes the movement of the subject person and inputs an instruction to the TV or a device connected to the TV. May be. In addition to the video phone, the present invention may be applied to camera modules 1 for personal computers, portable terminals, surveillance cameras, and the like.

１ カメラモジュール
１０ 固定体
２０ 駆動装置
２１ 第１支軸
２２ 第２支軸
３０ モータ
４０ 歯車機構
５１、５２ 第１歯車
６１、６２ 第２歯車
７０ コイルばねからなる付勢部材
８０ 固定体
８１ 下ケース
８２ 上ケース
９０ 可動体
１００ テレビ
１１０ テレビ画面
１２０ 枠体
５１１、５２１、６１１、６２１ 大径歯車
５１２、５２２、６１２、６２２ 小径歯車
Ｌｃ 回転中心軸線
Ｌｍ モータ軸線
Ｌ１ 第１軸線
Ｌ２ 第２軸線 DESCRIPTION OF SYMBOLS 1 Camera module 10 Fixed body 20 Drive apparatus 21 1st spindle 22 2nd spindle 30 Motor 40 Gear mechanism 51, 52 1st gear 61, 62 2nd gear 70 Energizing member 80 which consists of coil springs Fixed body 81 Lower case 82 Upper case 90 Movable body 100 Television 110 Television screen 120 Frame 511, 521, 611, 621 Large diameter gear 512, 522, 612, 622 Small diameter gear Lc Rotation center axis Lm Motor axis L1 First axis L2 Second axis

Claims (8)

カメラと、
該カメラを保持する可動体と、
該可動体を前記カメラの撮像方向と交差する方向に延在する回転中心軸線周りに回転可能に支持する固定体と、
モータ、および該モータの回転を減速して前記可動体に伝達する歯車機構によって前記可動体を前記回転中心軸線周りに回転させる駆動装置と、
前記可動体を前記回転中心軸線方向に付勢して前記固定体に押し付ける付勢部材と、
を有し、
前記固定体はケースを備え、前記可動体は前記回転中心軸線方向に延びる軸部を備え、前記付勢部材は前記軸部を前記ケースに押し付けており、
前記歯車機構は、第１軸線回りに回転可能な複数の第１歯車と、前記第１軸線と平行に並列する第２軸線回りに回転可能な複数の第２歯車と、前記モータの出力軸に固着されたモータピニオンと、前記モータピニオンに噛合する第１平歯車と、前記第１歯車に噛合し且つ前記第１平歯車に連結される第２平歯車と、を含み、
前記第２軸線は前記第１平歯車および前記第２平歯車の回転中心を通り、
前記モータの回転は、前記複数の第１歯車および前記複数の第２歯車において、第１歯車から第２歯車への伝達と、当該第２歯車から別の第１歯車への伝達と、当該別の歯車から別の第２歯車への伝達と、が行われて前記可動体に伝達されることを特徴とするカメラモジュール。 A camera,
A movable body for holding the camera;
A fixed body that rotatably supports the movable body around a rotation center axis that extends in a direction intersecting the imaging direction of the camera;
A motor, and a driving device that rotates the movable body around the rotation center axis by a gear mechanism that decelerates and transmits the rotation of the motor to the movable body;
A biasing member that biases the movable body in the direction of the rotation center axis and presses the movable body against the fixed body;
Have
The fixed body includes a case, the movable body includes a shaft portion extending in the rotation center axis direction, and the urging member presses the shaft portion against the case .
The gear mechanism includes a plurality of first gears rotatable about a first axis, a plurality of second gears rotatable about a second axis parallel to the first axis, and an output shaft of the motor. A fixed motor pinion; a first spur gear meshing with the motor pinion; and a second spur gear meshing with the first gear and coupled to the first spur gear;
The second axis passes through the rotation center of the first spur gear and the second spur gear,
The rotation of the motor includes transmission from the first gear to the second gear, transmission from the second gear to another first gear, and the separate in the plurality of first gears and the plurality of second gears. The camera module is transmitted from the gear to another second gear and transmitted to the movable body . 前記モータのモータ軸線は、前記第１軸線の延長線上にあることを特徴とする請求項１に記載のカメラモジュール。 The camera module according to claim 1, wherein a motor axis of the motor is on an extension line of the first axis . 前記モータのモータ軸線は、前記第１軸線および前記第２軸線と平行であることを特徴とする請求項１に記載のカメラモジュール。 The camera module of claim 1, wherein the motor shaft of the motor is parallel to said first axis and said second axis. 前記第１歯車および前記第２歯車は各々、大径歯車に対して前記第１軸線方向および前記第２軸線方向における同一側に小径歯車が一体化されている複合歯車であり、
前記複数の第１歯車および前記複数の第２歯車において、第２歯車の大径歯車には、当該第２歯車を駆動する第１歯車の小径歯車が噛合し、当該第２歯車の小径歯車には、当該
第２歯車に従動する別の第１歯車の大径歯車が噛合していることを特徴とする請求項２または３に記載のカメラモジュール。 Each of the first gear and the second gear is a composite gear in which a small-diameter gear is integrated on the same side in the first axial direction and the second axial direction with respect to a large-diameter gear,
In the plurality of first gears and the plurality of second gears, the small diameter gear of the first gear that drives the second gear meshes with the large diameter gear of the second gear, and the small diameter gear of the second gear The
The camera module according to claim 2 or 3, wherein a large-diameter gear of another first gear driven by the second gear is engaged . 前記可動体の前記回転中心軸線は、前記第１軸線および前記第２軸線と平行に延在していることを特徴とする請求項４に記載のカメラモジュール。   The camera module according to claim 4, wherein the rotation center axis of the movable body extends in parallel with the first axis and the second axis. 前記第１軸線および前記第２軸線は、前記可動体の前記回転中心軸線に対して前記撮像方向とは反対側に向かって配列されていることを特徴とする請求項５に記載のカメラモジュール。   The camera module according to claim 5, wherein the first axis and the second axis are arranged toward the opposite side of the imaging direction with respect to the rotation center axis of the movable body. 前記複数の第１歯車は各々、前記第１軸線上で延在する共通の第１支軸に回転可能に支持され、
前記複数の第２歯車は各々、前記第２軸線上で延在する共通の第２支軸に回転可能に支持されていることを特徴とする請求項２乃至６の何れか一項に記載のカメラモジュール。 Each of the plurality of first gears is rotatably supported by a common first support shaft extending on the first axis,
7. The plurality of second gears are each rotatably supported by a common second support shaft that extends on the second axis. 8. The camera module. 前記カメラは、前記駆動装置に駆動されて、前記固定体から露出した状態と、前記固定体に隠れた状態とに切り換わることを特徴とする請求項１乃至７の何れか一項に記載のカメラモジュール。   8. The camera according to claim 1, wherein the camera is driven by the driving device to switch between a state exposed from the fixed body and a state hidden behind the fixed body. 9. The camera module.
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