JPH0895129A - Driving device for camera - Google Patents

Driving device for camera

Info

Publication number
JPH0895129A
JPH0895129A JP23308894A JP23308894A JPH0895129A JP H0895129 A JPH0895129 A JP H0895129A JP 23308894 A JP23308894 A JP 23308894A JP 23308894 A JP23308894 A JP 23308894A JP H0895129 A JPH0895129 A JP H0895129A
Authority
JP
Japan
Prior art keywords
gear
flange
collar
pinion gear
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23308894A
Other languages
Japanese (ja)
Inventor
Yuuji Nikaidou
二階堂裕二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP23308894A priority Critical patent/JPH0895129A/en
Publication of JPH0895129A publication Critical patent/JPH0895129A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Cameras Including Film Mechanisms (AREA)

Abstract

PURPOSE: To prevent a timing belt from coming off by making the outside diameter of the collar flange of a collar in a small-sized coreless motor or the gear flange of a pinion gear larger than that of the pinion gear. CONSTITUTION: The collar flange 8 having the outside diameter larger than that of the pinion gear 3 is provided on the collar 2 and driving torque imparted by the small-sized coreless motor 1 is transmitted to a driven gear 4 by the timing belt 5 with the pinion gear 3. At this time, the timing belt 5 is rotated while engaging with the external teeth of the pinion gear 3 and the driven gear 4 and vertically shaken and moved according to the forward and backward rotations of the motor 1. The vertical movement is regulated by the flange 4a of the driven gear 4 in the lower part and the collar flange 8 fixed on the motor 1 in the upper part. Even if the gear flange having the outside diameter larger than that of the pinion gear 3 is provided on its top surface, the same effect is obtained.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は小型コアレスモータを用
いて駆動されるカメラにおける駆動系の改良に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a drive system in a camera driven by a small coreless motor.

【0002】[0002]

【従来の技術】従来から、カメラに内蔵の小型コアレス
モータを用いた駆動系では、該モータと共に回転するピ
ニオンギヤと該ピニオンギヤと直接噛み合う被動ギヤと
を有するものであったため、両ギヤの間で発生する騒音
が大きいという問題があった。そのため、モータ側のピ
ニオンギヤと前記被動ギヤとを直接噛み合わすことをし
ないで、両ギヤ間に掛け回わしたタイミングベルトを利
用して騒音を低減させるようにしていた。
2. Description of the Related Art Conventionally, a drive system using a small coreless motor built into a camera has a pinion gear that rotates together with the motor and a driven gear that directly meshes with the pinion gear. There was a problem that there was a lot of noise. Therefore, the pinion gear on the motor side and the driven gear are not directly meshed with each other, but the noise is reduced by using the timing belt wound around the both gears.

【0003】図4と図5は、従来例を示したもので、1
は小型コアレスモータ、2はカラー、3はピニオンギ
ヤ、4はカメラ内歯車列に噛合する被動ギヤ、4aは被
動ギヤ4と成型一体型のフランジ、5はタイミングベル
ト、6は、前記両ギヤ3および4にタイミングベルト5
を掛け回わした後、被動ギヤ4に溶着された金属円板、
7は小型コアレスモータのモータ軸である。
FIG. 4 and FIG. 5 show a conventional example.
Is a small coreless motor, 2 is a collar, 3 is a pinion gear, 4 is a driven gear that meshes with a gear train in the camera, 4a is a flange integrally formed with the driven gear 4 and 5 is a timing belt, 6 is both the gears 3 and Timing belt 5 on 4
The metal disc welded to the driven gear 4 after
7 is a motor shaft of a small coreless motor.

【0004】図5は、ピニオンギヤ3および被動ギヤ4
にタイミングベルト5を掛け回わした状態を示す図であ
り、小型コアレスモータ1の駆動時に、タイミングベル
ト5が上下方向に振れて外れるのを防止するため、被動
ギヤ4の片面に成型一体型のフランジ4aを設け、もう
一方の面には、別部材としての金属円板6を溶着などし
て設け、これによってタイミングベルト5の外れ止めの
機能を果すようにしている。一方、小型コアレスモータ
1とピニオンギヤ1との間には、樹脂で成型されたピニ
オンギヤ1より小径の筒状の部材カラー2がピニオンギ
ヤのスラストガタを規制するよう設けられている。
FIG. 5 shows a pinion gear 3 and a driven gear 4.
FIG. 3 is a diagram showing a state in which the timing belt 5 is wound around the drive gear 4 in order to prevent the timing belt 5 from swinging in the vertical direction and coming off when the small coreless motor 1 is driven. A flange 4a is provided, and a metal disk 6 as a separate member is provided on the other surface by welding or the like so that the timing belt 5 can be prevented from coming off. On the other hand, between the small coreless motor 1 and the pinion gear 1, a cylindrical member collar 2 having a diameter smaller than that of the pinion gear 1 made of resin is provided so as to restrict thrust play of the pinion gear.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上述し
た従来例のように被動ギヤ4に別部材の金属円板6を溶
着させて、小型コアレスモータ1を駆動させると以下の
2つの問題点が生じる。 (1)被動ギヤ4に別部材の金属円板6を溶着した場
合、被動ギヤ4と該金属円板6の溶着部分には隙間が生
じて若干のガタが発生するため、小型コアレスモータ1
の駆動時に金属性の騒音が生じてしまうという欠点があ
った。
However, if the driven gear 4 is welded with a separate metal disk 6 to drive the small coreless motor 1 as in the above-mentioned conventional example, the following two problems occur. . (1) When the metal disc 6 which is a separate member is welded to the driven gear 4, a gap is generated between the driven gear 4 and the welded portion of the metal disc 6 to cause some looseness, so that the small coreless motor 1
However, there was a drawback that metallic noise was generated when driving.

【0006】(2)被動ギヤ4に前記別部材を溶着する
ため、部品点数及び溶着工程が増えて、コスト面でもデ
メリットが生じていた。
(2) Since the separate member is welded to the driven gear 4, the number of parts and the welding process are increased, which causes a disadvantage in cost.

【0007】本発明は、前記小型コアレスモータのカラ
ーもしくはピニオンギヤにタイミングベルト外れ防止機
能をもたせるようにすることで被動ギヤに溶着していた
金属円板をなくし、もって上記の問題点を克服したカメ
ラの駆動装置を提供することを目的としている。
According to the present invention, the collar or pinion gear of the small coreless motor is provided with a function of preventing the timing belt from coming off, thereby eliminating the metal disk welded to the driven gear, thereby overcoming the above problems. It is an object of the present invention to provide a driving device of the.

【0008】[0008]

【課題を解決するための手段】上記目的を達成するた
め、本発明によるカメラの駆動装置は、小型コアレスモ
ータと、該モータのモータ軸に圧入嵌着されたカラーお
よびピニオンギヤと、カメラ内歯車列に噛合する被動ギ
ヤと、該両ギヤ間に掛回わされたタイミングベルトと、
を備えてなるカメラの駆動装置において、前記カラーも
しくはピニオンギヤには、前記モータに近い方の前記タ
イミングベルトの側面に面して前記ピニオンギヤよりも
大きい外径のカラーフランジもしくはギヤフランジを設
けるとともに、前記被動ギヤには、前記モータから遠い
方の前記タイミングベルトの側面に面して前記被動ギヤ
よりも大きい外径のギヤフランジを設けたことを特徴と
するものである。なお前記カラーフランジは及びギヤフ
ランジは、それぞれ前記カラーおよび前記被動ギヤと一
体的に成型したものにすることができる。
To achieve the above object, a camera driving device according to the present invention comprises a small coreless motor, a collar and a pinion gear press-fitted to the motor shaft of the motor, and a gear train in the camera. A driven gear that meshes with the gear, and a timing belt wound between the two gears,
In the camera drive device, the collar or the pinion gear is provided with a collar flange or a gear flange having an outer diameter larger than that of the pinion gear, facing the side surface of the timing belt closer to the motor. The gear is characterized in that a gear flange having an outer diameter larger than that of the driven gear is provided facing the side surface of the timing belt farther from the motor. The collar flange and the gear flange may be integrally molded with the collar and the driven gear, respectively.

【0009】[0009]

【実施例】図1と図2を用いて本発明の第1実施例を説
明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

【0010】図1は本発明の実施例を示す各部品が駆動
装置に組み込まれた時の全体の構成を表した分解斜視図
である。
FIG. 1 is an exploded perspective view showing the overall construction of each component when incorporated into a drive device according to an embodiment of the present invention.

【0011】一方、図2は本発明の第1実施例の特徴と
する部分を示す断面の拡大図である。既に図5において
各部の要素と説明は示しているので、ここでは省略す
る。異なる点は、別部材による金属円板6が被動ギヤに
溶着されていない点と、カラー2にピニオンギヤ3の外
径より大きいカラーフランジ8が設けられた点である。
小型コアレスモータ1によって付与された駆動トルク
は、ピニオンギヤ3を介してタイミングベルト5により
被動ギヤ4へ伝達される。この時、タイミングベルト5
は、ピニオンギヤ3と被動ギヤ4の外歯と噛み合いなが
ら回転し、小型コアレスモータ1の正転及び逆転に伴な
い上下方向に振られて移動する。
On the other hand, FIG. 2 is an enlarged cross-sectional view showing a characteristic portion of the first embodiment of the present invention. Since the elements and description of each unit have already been shown in FIG. 5, they are omitted here. The different points are that the metal disk 6 made of another member is not welded to the driven gear, and that the collar 2 is provided with a collar flange 8 larger than the outer diameter of the pinion gear 3.
The driving torque applied by the small coreless motor 1 is transmitted to the driven gear 4 by the timing belt 5 via the pinion gear 3. At this time, the timing belt 5
Rotates while meshing with the outer teeth of the pinion gear 3 and the driven gear 4, and is shaken in the vertical direction as the small coreless motor 1 rotates forward and backward to move.

【0012】この上下方向の移動は、下方は被動ギヤ4
のフランジ4aにより規制され、上方は小型コアレスモ
ータ1に固定されているカラーフランジ8によって規制
される。
In the vertical movement, the driven gear 4 is on the lower side.
Is regulated by the flange 4a, and the upper side is regulated by the collar flange 8 fixed to the small coreless motor 1.

【0013】図3を用いて本発明の第2実施例を説明す
る。
A second embodiment of the present invention will be described with reference to FIG.

【0014】第1実施例では、カラー2にピニオンギヤ
3の外径より大きいカラーフランジ8を設けたが、ピニ
オンギヤ3の上面にピニオンギヤ3の外径より大きいギ
ヤフランジ9を設けても同様の効果を得ることができ
る。
In the first embodiment, the collar 2 is provided with the collar flange 8 larger than the outer diameter of the pinion gear 3. However, the same effect can be obtained by providing the upper surface of the pinion gear 3 with the gear flange 9 larger than the outer diameter of the pinion gear 3. be able to.

【0015】[0015]

【発明の効果】以上説明したように、本発明によれば小
型コアレスモータのカラーのカラーフランジ、もしくは
ピニオンギヤのギヤフランジの外径をピニオンギヤの外
径より大きくして、被動ギヤのギヤフランジの働きと相
俟ってタイミングベルトの外れを防止することにより、
従来被動ギヤに溶着して設けていた別部材の金属円板を
廃止でき、該金属円板に起因する小型コアレスモータ駆
動時の騒音を解消すると共に部品と組立工程工数の削減
が計られ、コストダウンの効果が得られる。
As described above, according to the present invention, the outer diameter of the collar flange of the small coreless motor or the gear flange of the pinion gear is made larger than the outer diameter of the pinion gear, so as to function as the gear flange of the driven gear. By preventing the timing belt from coming off,
A metal disk, which is a separate member that was conventionally welded to the driven gear, can be eliminated, noise generated when driving a small coreless motor due to the metal disk can be eliminated, and the number of parts and assembly steps can be reduced. The effect of down is obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1実施例を示す斜視図である。FIG. 1 is a perspective view showing a first embodiment of the present invention.

【図2】本発明の第1実施例の一部を拡大した説明図で
ある。
FIG. 2 is an enlarged view of a part of the first embodiment of the present invention.

【図3】本発明の第2実施例の一部を拡大した説明図で
ある。
FIG. 3 is an enlarged view of a part of the second embodiment of the present invention.

【図4】本発明の従来例を示す斜視図である。FIG. 4 is a perspective view showing a conventional example of the present invention.

【図5】本発明の従来例の一部を拡大した説明図であ
る。
FIG. 5 is an enlarged view of a part of a conventional example of the present invention.

【符号の説明】[Explanation of symbols]

1…モータ 2…カラー 3…ピニオンギヤ 4…被動ギヤ 4a…ギヤフランジ(被動ギヤ側) 5…タイミング
ベルト 6…金属円板 7…モータ軸 8…カラーフランジ 9…ギヤフラン
ジ(ピニオンギヤ側)
1 ... Motor 2 ... Color 3 ... Pinion gear 4 ... Driven gear 4a ... Gear flange (driven gear side) 5 ... Timing belt 6 ... Metal disk 7 ... Motor shaft 8 ... Color flange 9 ... Gear flange (pinion gear side)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 小型コアレスモータと、該モータのモー
タ軸に圧入嵌着されたカラーおよびピニオンギヤと、カ
メラ内歯車列に噛合する被動ギヤと、該両ギヤ間に掛回
わされたタイミングベルトと、を備えてなるカメラの駆
動装置において、 前記カラーもしくはピニオンギヤには、前記モータに近
い方の前記タイミングベルトの側面に面して前記ピニオ
ンギヤよりも大きい外径のカラーフランジもしくはギヤ
フランジを設けるとともに、前記被動ギヤには、前記モ
ータから遠い方の前記タイミングベルトの側面に面して
前記被動ギヤよりも大きい外径のギヤフランジを設けた
ことを特徴とするカメラの駆動装置。
1. A small coreless motor, a collar and a pinion gear press-fitted to a motor shaft of the motor, a driven gear meshing with a gear train in a camera, and a timing belt wound between the gears. In the camera drive device including, the collar or the pinion gear is provided with a collar flange or a gear flange having an outer diameter larger than that of the pinion gear, facing the side surface of the timing belt closer to the motor. A driving device for a camera, wherein the driven gear is provided with a gear flange facing the side surface of the timing belt farther from the motor and having an outer diameter larger than that of the driven gear.
【請求項2】 前記カラーフランジおよび前記ギヤフラ
ンジは、それぞれ前記カラー、前記ピニオンギヤおよび
前記被動ギヤと一体に成形されたものであることを特徴
とする請求項1記載のカメラの駆動装置。
2. The camera drive device according to claim 1, wherein the collar flange and the gear flange are formed integrally with the collar, the pinion gear, and the driven gear, respectively.
JP23308894A 1994-09-28 1994-09-28 Driving device for camera Pending JPH0895129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23308894A JPH0895129A (en) 1994-09-28 1994-09-28 Driving device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23308894A JPH0895129A (en) 1994-09-28 1994-09-28 Driving device for camera

Publications (1)

Publication Number Publication Date
JPH0895129A true JPH0895129A (en) 1996-04-12

Family

ID=16949608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23308894A Pending JPH0895129A (en) 1994-09-28 1994-09-28 Driving device for camera

Country Status (1)

Country Link
JP (1) JPH0895129A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150016358A (en) 2012-08-24 2015-02-11 니혼 덴산 산쿄 가부시키가이샤 Camera module
KR20150016359A (en) 2012-08-28 2015-02-11 니혼 덴산 산쿄 가부시키가이샤 Camera module
CN104584528A (en) * 2012-08-28 2015-04-29 日本电产三协株式会社 Camera module

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150016358A (en) 2012-08-24 2015-02-11 니혼 덴산 산쿄 가부시키가이샤 Camera module
KR20150016359A (en) 2012-08-28 2015-02-11 니혼 덴산 산쿄 가부시키가이샤 Camera module
CN104584528A (en) * 2012-08-28 2015-04-29 日本电产三协株式会社 Camera module
CN104584528B (en) * 2012-08-28 2017-08-11 日本电产三协株式会社 Camera module

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