JP2569450B2 - Electronic still camera - Google Patents

Electronic still camera

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Publication number
JP2569450B2
JP2569450B2 JP6057303A JP5730394A JP2569450B2 JP 2569450 B2 JP2569450 B2 JP 2569450B2 JP 6057303 A JP6057303 A JP 6057303A JP 5730394 A JP5730394 A JP 5730394A JP 2569450 B2 JP2569450 B2 JP 2569450B2
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JP
Japan
Prior art keywords
output
cassette
gear
still camera
electronic still
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JP6057303A
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Japanese (ja)
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JPH07170476A (en
Inventor
雅 太田
義郎 奈良
泰明 石黒
良太 荒木
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株式会社ニコン
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Priority to JP6057303A priority Critical patent/JP2569450B2/en
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Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】本発明は、記録媒体に画像を記録する電子スチルカメラに関するものである。 [0001] The present invention relates to an electronic still camera for recording an image on a recording medium.

【0002】本発明は、記録媒体に画像信号を記録するカメラにおいて、高画質の画像記録を実現することを目的とする。 An object of the present invention is to realize high-quality image recording in a camera that records an image signal on a recording medium.

【課題を解決するための手段】上記目的を達成するため
に、本発明では、撮影光学系と、前記撮影光学系により
形成された被写体像を電気的映像信号に変換する光電変
換手段とを含む撮像系とを有する電子スチルカメラにお
いて、前記電子スチルカメラの撮影制御のため駆動を行
う電気的駆動手段(M2) と、前記光電変換手段により光
電変換された前記電気的映像信号を撮像系から読み出し
出力する出力手段(110,117)と、前記出力手段の出力と
前記電気的駆動とが同時に行われることを禁止するよう
に、前記電気的駆動手段の駆動あるいは前記出力手段の
出力のタイミングを制御する制御手段(119,123) とを有
するように電子スチルカメラを構成した。
In order to achieve the above object, the present invention includes a photographing optical system and a photoelectric conversion means for converting a subject image formed by the photographing optical system into an electric video signal. In an electronic still camera having an image pickup system, an electric drive unit (M2) for driving for photographing control of the electronic still camera, and reading out the electric video signal photoelectrically converted by the photoelectric conversion unit from the image pickup system Output means for outputting (110, 117), and control for controlling timing of driving of the electric drive means or output of the output means so as to prohibit simultaneous execution of the output of the output means and the electric drive. The electronic still camera is configured to have the means (119, 123).

【実施例】以下本発明の実施例について添付の図面を参
照して説明する。図1a、図1bは本発明に係る電子式
写真機(以後カメラと略称する)の外観を示す前方斜視
図と上面図である。図においてCaはカメラ本体を示す。
1は通常の交換レンズであり、距離調節環、絞り調節環
等の通常の写真撮影に必要な調節部が設けられている。
3はレンズマウントで交換レンズ1の後端と係合可能に形成されている。 Reference numeral 3 denotes a lens mount, which is formed so as to be engaged with the rear end of the interchangeable lens 1. レンズマウント開口内に設けられている自動絞り連動レバー4は、交換レンズ側に設けられた絞りレバー2と係合して公知の自動絞り機能を構成するものである。 The automatic diaphragm interlocking lever 4 provided in the lens mount opening engages with the diaphragm lever 2 provided on the interchangeable lens side to form a known automatic diaphragm function. 5はファインダー光取り出し用のクイックリターンミラー(以下ミラーと称す)である。 Reference numeral 5 denotes a quick return mirror (hereinafter referred to as a mirror) for taking out finder light. カメラ上面のレリーズ釦6と共軸に配された7は、モード切換えリングで、一駒撮り(Sモード)と連続駒撮り(Cモード)の切換えと、レリーズ釦のロックおよび長時間撮影を行なわない場合(後述)のための位置(OFF) へとの切り換えを行なうようになっている。 7 arranged on the same axis as the release button 6 on the top of the camera is a mode switching ring that switches between single-frame shooting (S mode) and continuous frame shooting (C mode), locks the release button, and shoots for a long time. It is designed to switch to the position (OFF) for the case (described later). 8は例えば液晶のデジタル表示器で構成された、撮影駒数を示す表示器で、 Reference numeral 8 denotes a display indicating the number of shooting frames, which is composed of, for example, a liquid crystal digital display.
磁気ディスクへ記録を行なうヘッドのトラック位置を示すものである。 It indicates the track position of the head that records on a magnetic disk. 9はカメラ動作時に磁気ディスクへの記録を通常どおり行なう場合と、記録を行なわないでヘッドを次の撮影駒へ移す場合とのための記録・非記録切換えスイッチである。 Reference numeral 9 denotes a recording / non-recording switching switch for recording on a magnetic disk as usual during camera operation and for moving the head to the next photographing piece without recording. すなわち、この切換えスイッチ9を非記録位置(NR)に設定して、レリーズ釦を操作することにより、通常の撮影動作のうちディスクへの記録だけが行なわれず動作するので任意の駒数に記録ヘッドの位置の移動が可能となるものである。 That is, by setting the changeover switch 9 to the non-recording position (NR) and operating the release button, only recording to the disc is not performed in the normal shooting operation, so that the recording head can be set to an arbitrary number of frames. It is possible to move the position of. 10はシャッター速度設定ダイヤル、11はストロボ装置のシューであり信号授受のための接点11aが設けられている。 Reference numeral 10 denotes a shutter speed setting dial, and 11 is a shoe of a strobe device, which is provided with a contact 11a for transmitting and receiving signals. 12は接眼アイピースである。 12 is an eyepiece eyepiece. Embodiments of the present invention will be described below with reference to the accompanying drawings. 1A and 1B are a front perspective view and a top view showing the appearance of an electronic camera (hereinafter abbreviated as a camera) according to the present invention. In the figure, Ca indicates a camera body. Embodiments of the present invention will be described below with reference to the accompanying drawings. 1A and 1B are a front perspective view and a top view showing the appearance of an electronic camera (hereinafter abbreviated as a camera) according to the present invention. In the figure, Ca indicates a camera body.
Reference numeral 1 denotes a normal interchangeable lens, which is provided with an adjustment unit such as a distance adjustment ring and an aperture adjustment ring, which are necessary for normal photographing. Reference numeral 1 tetrahydrofuran a normal interchangeable lens, which is provided with an adjustment unit such as a distance adjustment ring and an aperture adjustment ring, which are necessary for normal cameras.
Reference numeral 3 denotes a lens mount formed so as to be able to engage with the rear end of the interchangeable lens 1. The automatic aperture interlocking lever 4 provided in the lens mount opening engages with the aperture lever 2 provided on the interchangeable lens side to constitute a known automatic aperture function. Reference numeral 5 denotes a quick return mirror (hereinafter, referred to as a mirror) for taking out finder light. Reference numeral 7 arranged coaxially with the release button 6 on the top of the camera is a mode switching ring for switching between single-frame shooting (S mode) and continuous frame shooting (C mode), locking the release button and shooting for a long time. If there is not (described later), switching to the position (OFF) is performed. Reference numeral 8 denotes a display for indicating the number of frames to be shot, which is constituted by, for example, a liquid crystal digital display. Reference numeral 3 Then a lens mount formed so as to be able to engage with the rear end of the interchangeable lens 1. The automatic aperture interlocking lever 4 provided in the lens mount opening engages with the aperture lever 2 provided on the interchangeable lens side to Reference numeral 7 arranged anisotropicly with the release button 6 on the top of the camera is a mode switching. Referred a known automatic aperture function. Reference numeral 5 Then a quick return mirror (hereinafter, referred to as a mirror) for taking out finder light. ring for switching between single-frame shooting (S mode) and continuous frame shooting (C mode), locking the release button and shooting for a long time. If there is not (described later), switching to the position (OFF) is performed Reference numeral 8 Then a display for indicating the number of frames to be shot, which is composed by, for example, a liquid crystal digital display.
It shows a track position of a head for recording on a magnetic disk. Reference numeral 9 denotes a recording / non-recording switch for recording the magnetic disk as usual during operation of the camera and for moving the head to the next photographing frame without recording. That is, when the changeover switch 9 is set to the non-recording position (NR) and the release button is operated, the recording operation is performed without performing only recording on the disk in the normal photographing operation. Can be moved. Reference numeral 10 denotes a shutter speed setting dial, and reference numeral 11 denotes a shoe of a strobe device, which is provided with a contact 11a for transmitting and receiving signals. Reference numeral 12 denotes an eyepiece. It shows a track position of a head for recording on a magnetic disk. Reference radius 9 Then a recording / non-recording switch for recording the magnetic disk as usual during operation of the camera and for moving the head to the next reproducing frame without recording That is, when the changeover switch 9 is set to the non-recording position (NR) and the release button is operated, the recording operation is performed without performing only recording on the disk in the normal photographing operation. Can be moved. Reference reference magnet 12 located an eyepiece. Reference magnet 12 located at a shutter speed setting dial, and reference magnet 110032 a shoe of a strobe device, which is provided with a contact 11a for transmitting and receiving signals.

【0003】図 2、図 3は本発明に係るカメラの断面図でそれぞれ水平横断面と垂直縦断面であり、図 2
は図1aのI−I断面図、図 3は図1bのII−II断面視図である。 1A is a sectional view taken along line I-I, and FIG. 3 is a sectional view taken along line II-II of FIG. 1b. 図 2では磁気記録ディスク・カセット20 In FIG. 2, the magnetic recording disk cassette 20
(以下単にカセットと略称する)の挿入或いは取出しを行なう状態を示し、図 3ではカセット20が挿入され、 It shows the state of inserting or removing (hereinafter simply abbreviated as cassette), and in FIG. 3, the cassette 20 is inserted.
カメラ本体Caに装着されている状態を示す。 Indicates the state of being attached to the camera body Ca. 図 2、b Fig. 2, b
に於いて23は、カセット20を挿入するカセットホルダーでリンク部材22とピン22aによって回動可能に結合されている。 23 is a cassette holder into which the cassette 20 is inserted, and is rotatably connected to the link member 22 by a pin 22a. リンク部材22は、カメラ本体に軸22bで回動可能に取付けられている。 The link member 22 is rotatably attached to the camera body by a shaft 22b. したがってカセットホルダー23 Therefore cassette holder 23
は、裏蓋21に配設されたピン21cとの係合によって、裏蓋21の開閉動作に連動して、カメラ本体のカセット収納部24への出し入れが行なわれる。 Is taken in and out of the cassette storage portion 24 of the camera body in conjunction with the opening / closing operation of the back cover 21 by engaging with the pin 21c arranged on the back cover 21. またカセットホルダーAlso cassette holder
23の内側にはカセット20の位置決めばね23aが配設されている。 A positioning spring 23a of the cassette 20 is arranged inside the 23. 図 2の状態からカセットの挿入を行なう場合には、カセットホルダー23内にカセットを挿入し裏蓋21 When inserting the cassette from the state shown in FIG. 2, insert the cassette into the cassette holder 23 and the back cover 21.
を閉じると、リンク部材22によりカセット20およびカセットホルダー23はディスク駆動軸25の回転軸と平行な方向に移動し、カセット内の磁気記録ディスク20a中央の回転ハブ20bの中心孔がディスク駆動軸25の中心軸25a When the link member 22 closes, the cassette 20 and the cassette holder 23 move in a direction parallel to the rotation axis of the disc drive shaft 25, and the central hole of the rotation hub 20b at the center of the magnetic recording disk 20a in the cassette is the disk drive shaft 25. Central axis 25a
に嵌合する。 Fit into. このとき、ディスク駆動軸25に設けられた駆動ピン26bは不図示のばねに抗して軸方向に回転ハブによって押し込まれた状態となっている。 At this time, the drive pin 26b provided on the disc drive shaft 25 is in a state of being pushed by the rotating hub in the axial direction against a spring (not shown). その後ディスク回転用モーターM1の回転がベルト26を介して駆動軸After that, the rotation of the disc rotation motor M1 is carried out via the belt 26 and the drive shaft.
25に伝えられたピン25bが移動して回転ハブ20bの小孔の位置にくると前述のばね(不図示)の力によりピンが小孔にはまり込みモーターM1の回転力がディスク20a When the pin 25b transmitted to 25 moves and comes to the position of the small hole of the rotating hub 20b, the pin is fitted into the small hole by the force of the spring (not shown) described above, and the rotational force of the motor M1 is the disk 20a.
に伝えられるようになる。 Will be told to. また、このカセットの挿入動作時に、裏蓋21に設けられたホルダー押えばね21aはカセットホルダー23の位置決めを、同様に、ハブ押え21b Further, during the insertion operation of the cassette, the holder holding spring 21a provided on the back cover 21 positions the cassette holder 23, and similarly, the hub holding 21b.
がディスクの回転ハブ20bに係合し駆動軸25に回転ハブを軽く押しつけるようそれぞれ動作し、図 3の装着状態となる。 Engage with the rotary hub 20b of the disc and lightly press the rotary hub against the drive shaft 25, respectively, and the mounted state shown in FIG. 3 is obtained. なお27はカセット収納部分24へのほこり等の進入を防ぐカバー板で、カメラ本体に回動可能に取付けられており、カセットホルダー23の移動によりカセット挿入時には退避位置へ回動される。 Reference numeral 27 denotes a cover plate for preventing dust and the like from entering the cassette storage portion 24, which is rotatably attached to the camera body and is rotated to the retracted position when the cassette is inserted by moving the cassette holder 23. 以上のようにしてカセットが挿入されると磁気ヘッド30がカセットホルダーWhen the cassette is inserted as described above, the magnetic head 30 becomes the cassette holder.
23、ディスクカセット20にそれぞれあけられているヘッド挿入孔を通して磁気ディスク20aに接触し磁気記録が可能な状態となる。 23, through the head insertion holes drilled in the disk cassette 20, the magnetic disk 20a is contacted and magnetic recording is possible. また逆にカセットの取出しを行なう場合には公知の裏蓋ロック機構(不図示)を解除して裏蓋を開くことによりカセットホルダーが図 2に示す状態となり、カセットの取出しが行なえる。 On the contrary, when the cassette is taken out, the cassette holder is in the state shown in FIG. 2 by releasing the known back cover lock mechanism (not shown) and opening the back cover, and the cassette can be taken out. 図 2において28は裏蓋開閉検知ピンであり裏蓋の開閉に連動して電気接点S1を開閉して検知し、たとえば裏蓋の開いた状態では、レリーズ釦を押してもカメラが作動しないようにするなどの動作を行なうためのものである。 In FIG. 2, 28 is a back cover open / close detection pin, which detects by opening / closing the electric contact S1 in conjunction with the opening / closing of the back cover. For example, when the back cover is open, the camera does not operate even if the release button is pressed. It is for performing operations such as. 29は電源電池34収納のための電池収納蓋である。 29 is a battery storage lid for storing the power supply battery 34. 31は固体撮像素子を含む回路基板で、カメラ本体の支持基板19に調整ビス32にて位置調整可能な状態で取付けられている。 Reference numeral 31 denotes a circuit board including a solid-state image sensor, which is attached to the support board 19 of the camera body in a state where the position can be adjusted by the adjustment screw 32. 前記回路基板31に設けられる映像素子はその前面に図示しない色分離フィルターおよび素子の分光感度の補償のための赤外光カットフィルターが配設されている。 The image element provided on the circuit board 31 is provided with a color separation filter (not shown) and an infrared light cut filter for compensating the spectral sensitivity of the element on the front surface thereof. 35は周知の機械駆動電子制御式のフォーカルプレンシャッターで、その前面には、オプチカル・ロウパスフィルタ18が配設されている。 Reference numeral 35 denotes a well-known mechanically driven electronically controlled focal plane shutter, and an optical low pass filter 18 is arranged on the front surface thereof. オプチカル・ロウパスフィルター18をシャッター前面に配設したのは、フィルター厚によるシャッター効率の低下を防ぐためである。 The optical low-pass filter 18 is arranged in front of the shutter in order to prevent a decrease in shutter efficiency due to the filter thickness. 33a、33bは画像信号処理のための電子回路プリント基板である。 33a and 33b are electronic circuit printed circuit boards for image signal processing. Figure
2に示す、ミラーボックスの左右に配せられたD1、D D1 and D arranged on the left and right of the mirror box shown in 2.
2はそれぞれクイックリターンミラー5の動作および自動絞りレバー4の駆動機構部D1とシャッターシャージ機構および磁気ヘッド移動機構の駆動機構部D2の各ブロック(詳細について後述)である。 Reference numeral 2 denotes each block (details will be described later) of the operation of the quick return mirror 5 and the drive mechanism unit D1 of the automatic aperture lever 4 and the drive mechanism unit D2 of the shutter shard mechanism and the magnetic head moving mechanism. FIGS. 2 and 3 are cross-sectional views of a camera according to the present invention, which are a horizontal cross section and a vertical vertical section, respectively. FIGS. 2 and 3 are cross-sectional views of a camera according to the present invention, which are a horizontal cross section and a vertical vertical section, respectively.
1 is a sectional view taken along line II of FIG. 1A, and FIG. 3 is a sectional view taken along line II-II of FIG. 1B. In FIG. 2, the magnetic recording disk cassette 20 is shown. 1 is a sectional view taken along line II of FIG. 1A, and FIG. 3 is a sectional view taken along line II-II of FIG. 1B. In FIG. 2, the magnetic recording disk cassette 20 is shown.
FIG. 3 shows a state in which insertion or removal of a cassette (hereinafter simply referred to as a cassette) is performed. FIG. 3 shows a state in which insertion or removal of a cassette (hereinafter simply referred to as a cassette) is performed.
This shows a state where the camera body Ca is mounted. Figure 2, b This shows a state where the camera body Ca is mounted. Figure 2, b
Reference numeral 23 denotes a cassette holder into which the cassette 20 is inserted. The cassette holder 23 is rotatably connected to the link member 22 by a pin 22a. The link member 22 is attached to the camera body so as to be rotatable about a shaft 22b. Therefore the cassette holder 23 Reference numeral 23 tetrahydrofuran a cassette holder into which the cassette 20 is inserted. The cassette holder 23 is rotatably connected to the link member 22 by a pin 22a. The link member 22 is attached to the camera body so as to be rotating about a shaft 22b. Therefore the cassette holder 23
The camera body is inserted into and taken out of the cassette housing section 24 of the camera body in conjunction with the opening / closing operation of the back cover 21 by engagement with a pin 21c provided on the back cover 21. Also cassette holder The camera body is inserted into and taken out of the cassette housing section 24 of the camera body in conjunction with the opening / closing operation of the back cover 21 by engagement with a pin 21c provided on the back cover 21. Also cassette holder
Inside the cassette 23, a positioning spring 23a of the cassette 20 is provided. When the cassette is inserted from the state shown in FIG. 2, the cassette is inserted into the cassette holder 23 and the back cover 21 is inserted. Inside the cassette 23, a positioning spring 23a of the cassette 20 is provided. When the cassette is inserted from the state shown in FIG. 2, the cassette is inserted into the cassette holder 23 and the back cover 21 is inserted.
Is closed, the cassette 20 and the cassette holder 23 are moved in the direction parallel to the rotation axis of the disk drive shaft 25 by the link member 22, and the center hole of the rotary hub 20b at the center of the magnetic recording disk 20a in the cassette is inserted into the disk drive shaft 25. Center axis 25a Is closed, the cassette 20 and the cassette holder 23 are moved in the direction parallel to the rotation axis of the disk drive shaft 25 by the link member 22, and the center hole of the rotary hub 20b at the center of the magnetic recording disk 20a in the cassette is inserted into the disk drive shaft 25. Center axis 25a
Fits. At this time, the drive pin 26b provided on the disk drive shaft 25 is pushed in the axial direction by the rotating hub against a spring (not shown). After that, the rotation of the motor M1 for rotating the disk is driven by the drive shaft via the belt 26. Fits. At this time, the drive pin 26b provided on the disk drive shaft 25 is pushed in the axial direction by the rotating hub against a spring (not shown). After that, the rotation of the motor M1 for rotating the disk is driven. by the drive shaft via the belt 26.
When the pin 25b transmitted to the motor 25 moves to the position of the small hole of the rotary hub 20b, the pin is fitted into the small hole by the force of the above-mentioned spring (not shown), and the rotational force of the motor M1 is applied to the disk 20a. When the pin 25b transmitted to the motor 25 moves to the position of the small hole of the rotary hub 20b, the pin is fitted into the small hole by the force of the above-mentioned spring (not shown), and the rotational force of the motor M1 is applied to the disk 20a.
Will be told. When the cassette is inserted, the holder presser spring 21a provided on the back cover 21 similarly positions the cassette holder 23 by the hub presser 21b. Will be told. When the cassette is inserted, the holder presser spring 21a provided on the back cover 21 similarly positions the cassette holder 23 by the hub presser 21b.
Engages with the rotating hub 20b of the disk and gently presses the rotating hub against the drive shaft 25, resulting in the mounted state of FIG. Reference numeral 27 denotes a cover plate for preventing dust and the like from entering the cassette storage portion 24, which is rotatably attached to the camera body. When the cassette holder 23 is moved, it is rotated to the retracted position when the cassette is inserted. When the cassette is inserted as described above, the magnetic head 30 is moved to the cassette holder. Engages with the rotating hub 20b of the disk and gently presses the rotating hub against the drive shaft 25, resulting in the mounted state of FIG. Reference numeral 270032 a cover plate for preventing dust and the like from entering the cassette storage portion 24, Which is rotatably attached to the camera body. When the cassette holder 23 is moved, it is rotated to the retracted position when the cassette is inserted.
23. The magnetic disk 20a comes into contact with the magnetic disk 20a through the head insertion holes formed in the disk cassette 20 to enable magnetic recording. Conversely, when taking out the cassette, the cassette holder is brought into the state shown in FIG. 2 by releasing the known back cover lock mechanism (not shown) and opening the back cover, so that the cassette can be taken out. In FIG. 2, reference numeral 28 denotes a back cover opening / closing detection pin which detects the open / close state of the electric contact S1 in conjunction with the opening / closing of the back cover. This is for performing an operation such as performing an operation. Reference numeral 29 denotes a battery storage lid for storing the power supply battery 34. Reference numeral 31 denotes a circuit board including a solid-state image sensor, which is mounted on the support board 19 of the camera body in a state where the position can be adjusted by adjusting screws 32. The image element 23. The magnetic disk 20a comes into contact with the magnetic disk 20a through the head insertion holes formed in the disk cassette 20 to enable magnetic recording. Combined, when taking out the cassette, the cassette holder is brought into the state shown in FIG. 2 by releasing the known back cover lock mechanism (not shown) and opening the back cover, so that the cassette can be taken out. In FIG. 2, reference magnet 28 Then a back cover opening / closing detection pin which detects the open / Close state of the electric contact S1 in conjunction with the opening / closing of the back cover. This is for performing an operation such as performing an operation. Reference magnet 290032 a battery storage lid for storing the power supply battery 34. Reference magnet 31 iSeries a circuit board including a solid-state image sensor, which is mounted on the support board 19 of the camera body in a state where the position can be adjusted by adjusting screws 32. The image element provided on the circuit board 31 is provided with a color separation filter (not shown) and an infrared light cut filter for compensating the spectral sensitivity of the element on the front surface thereof. Reference numeral 35 denotes a well-known mechanically driven electronically controlled focal plane shutter, on the front of which an optical low-pass filter 18 is provided. The optical low-pass filter 18 is provided on the front surface of the shutter to prevent a reduction in shutter efficiency due to the filter thickness. 33a and 33b are electronic circuit printed boards for image signal processing. Figure provided on the circuit board 31 is provided with a color separation filter (not shown) and an infrared light cut filter for compensating the spectral sensitivity of the element on the front surface thereof. Reference identifier 35 Then a well-known mechanically driven electronically controlled focal plane shutter, on the front of which an optical low-pass filter 18 is provided. The optical low-pass filter 18 is provided on the front surface of the shutter to prevent a reduction in shutter efficiency due to the filter thickness. 33a and 33b are electronic circuit printed boards for image signal processing. Figure
D1, D arranged on the left and right of the mirror box shown in 2 D1, D arranged on the left and right of the mirror box shown in 2
Reference numeral 2 denotes blocks (details of which will be described later) of the operation of the quick return mirror 5 and the drive mechanism D1 of the automatic aperture lever 4 and the drive mechanism D2 of the shutter sharge mechanism and the magnetic head moving mechanism. Reference numeral 2 tetrahydrofuran blocks (details of which will be described later) of the operation of the quick return mirror 5 and the drive mechanism D1 of the automatic aperture lever 4 and the drive mechanism D2 of the shutter sharge mechanism and the magnetic head moving mechanism ..

【0004】撮影動作前後のファインダー像観察時に
は、図 3に示す様にクイックリターンミラー5(半透
鏡およびハーフ・プリズムにても可能である)によって
反射された光線は、図 3に示す様に周知の如く、スク
リーン17に結像し、コンデンサーレンズ16、ペンタプリ
ズム15を介して接眼レンズ13に導かれる。ペンタプリズ
ムと接眼レンズの間には、ファインダーのアイポイント
を短かくなるのを防ぐためにファインダー光路ガラス・
ブロック14が配せられている。 Block 14 is arranged. 100は被写体の明るさを測定するための公知の受光素子で、たとえばシリコンフォトダイオードなどからなっている。 Reference numeral 100 denotes a known light receiving element for measuring the brightness of the subject, which is made of, for example, a silicon photodiode. ミラーボックス底部に配置されているモーターM2は、ミラー及び自動絞りを駆動する駆動機構部D1およびシャッターチャージ及び磁気ヘッド移動の駆動をする駆動機構部D2の動力源となるモーターである。 The motor M2 arranged at the bottom of the mirror box is a motor that serves as a power source for the drive mechanism unit D1 that drives the mirror and the automatic aperture, and the drive mechanism unit D2 that drives the shutter charge and the movement of the magnetic head. D3は磁気ディスク回転機構部である。 D3 is a magnetic disk rotation mechanism unit. 図4は本発明に係るカメラの主要機構部の斜視図で、ミラー機構、自動絞り機構、シャッターチャージ機構及び磁気ヘッド移動機構の駆動部が含まれる。 FIG. 4 is a perspective view of a main mechanical part of the camera according to the present invention, and includes a mirror mechanism, an automatic aperture mechanism, a shutter charge mechanism, and a driving part of a magnetic head moving mechanism. At the time of finder image observation before and after the photographing operation, the light reflected by the quick return mirror 5 (also possible with a semi-transmissive mirror and a half prism) as shown in FIG. 3 is well known as shown in FIG. As described above, an image is formed on a screen 17 and guided to an eyepiece 13 via a condenser lens 16 and a pentaprism 15. Between the pentaprism and the eyepiece, the viewfinder optical path glass is used to prevent the viewfinder eye point from becoming too short. At the time of finder image observation before and after the photographing operation, the light reflected by the quick return mirror 5 (also possible with a semi-transmissive mirror and a half prism) as shown in FIG. 3 is well known as shown in FIG. As described above, an image is formed on a screen 17 and guided to an eyepiece 13 via a condenser lens 16 and a pentaprism 15. Between the pentaprism and the eyepiece, the viewfinder optical path glass is used to prevent the viewfinder eye point from becoming too short.
Block 14 is provided. Reference numeral 100 denotes a known light receiving element for measuring the brightness of a subject, which is made of, for example, a silicon photodiode. The motor M2 disposed at the bottom of the mirror box is a motor serving as a power source of a driving mechanism D1 for driving a mirror and an automatic aperture and a driving mechanism D2 for driving shutter charge and magnetic head movement. D3 is a magnetic disk rotation mechanism. FIG. 4 is a perspective view of a main mechanism of the camera according to the present invention, which includes a mirror mechanism, an automatic aperture mechanism, a shutter charging mechanism, and a drive unit of a magnetic head moving mechanism. Block 14 is provided. Reference numeral 1000035 a known light receiving element for measuring the brightness of a subject, which is made of, for example, a silicon photodiode. The motor M2 disposed at the bottom of the mirror box is a motor serving as a power source of a driving mechanism D1 for driving a mirror and an automatic aperture and a driving mechanism D2 for driving shutter charge and magnetic head movement. D3 is a magnetic disk rotation mechanism. FIG. 4 is a perspective view of a main mechanism of the camera according to the present invention, which includes a mirror mechanism, an automatic aperture mechanism, a shutter charging mechanism, and a drive unit of a magnetic head moving mechanism.

【0005】図4は、撮影動作完了後新たな撮影動作が
開始される前の状態を示す。ミラー5を保持するミラー
保持板36は左右に付設された回転軸37a、37bで回転自
在に支持されており、軸37b側にはガタ取りと姿勢保持
のための弱いばね38が掛けられている。39はミラー駆動
レバーで、ミラー保持板36に植設されたピン36aと係合
する。ミラー駆動レバー39は、前述の自動絞りレバー4
と軸40で同軸にそれぞれ回動可能に支持されており、両
者の間には、ピン4aとピン39aを介して絞りレバーば
ね41が掛けられているので、通常の動作では周知の如く
軸40を回転中心として両者一体に回動するものである。
また、レバー39の一端にはミラースタートの検出用のミラースイッチS2を作動せしめる信号ピン39bが植設され、さらに他端には、ミラー駆動カム45に連動するローラー42が回転自在に設けられている。 Further, a signal pin 39b for operating the mirror switch S2 for detecting the mirror start is planted at one end of the lever 39, and a roller 42 interlocking with the mirror drive cam 45 is rotatably provided at the other end. There is. ミラー駆動レバーMirror drive lever
39上のピン39cに掛けられているばね43はミラー駆動ばねであり、44a、44bは摺動ブラシ接点で位相検出スイッチ4を構成する。 The spring 43 mounted on the pin 39c on the 39 is a mirror drive spring, and the 44a and 44b are sliding brush contacts to form the phase detection switch 4. ミラー駆動カム45と一体の歯車46には回転制限爪47が固定されており、回転ストッパー48により時計、反時計両方向の回転共に1回転弱の回転角となるよう設定されている。 A rotation limiting claw 47 is fixed to the gear 46 integrated with the mirror drive cam 45, and a rotation stopper 48 is set so that the rotation angle in both the clockwise and counterclockwise directions is a little less than one rotation. ミラーの上昇と下降はモーターM2の回転方向によって制限されるもので、図4に示した状態から、モーターM2が反時計(矢印A)方向に回転すると歯車51、歯車50、歯車49を介して歯車46およびミラー駆動カム45も反時計(矢印B)方向に回転する。 The ascent and descent of the mirror is restricted by the rotation direction of the motor M2. From the state shown in FIG. 4, when the motor M2 rotates in the counterclockwise direction (arrow A), the gear 51, the gear 50, and the gear 49 are used. The gear 46 and the mirror drive cam 45 also rotate counterclockwise (arrow B). それに応じて、ミラー駆動ばね43の付勢力によりローラー42がミラー駆動カム45に追従して、ミラー駆動レバー39と自動絞りレバー4は軸40を回転中心にして時計(矢印C)方向に回動する。 Correspondingly, the roller 42 follows the mirror drive cam 45 by the urging force of the mirror drive spring 43, and the mirror drive lever 39 and the automatic aperture lever 4 rotate in the clock (arrow C) direction around the axis 40. To do. したがって、自動絞りレバー4の移動に伴って、レンズ1の絞りが所定の絞り径に絞り込まれ、同時にピン36aでミラー駆動レバー39と連動するミラー保持板36が反時計(矢印D)方向に回転しミラー5は像観察位置から撮影位置へと上昇する。 Therefore, as the automatic aperture lever 4 moves, the aperture of the lens 1 is stopped down to a predetermined aperture diameter, and at the same time, the mirror holding plate 36 linked with the mirror drive lever 39 at the pin 36a rotates counterclockwise (arrow D). The mirror 5 rises from the image observation position to the photographing position. ミラー駆動レバー39が時計(矢印C)方向へ回転をスタートすると、ピン39bがミラースイッチS2を押圧する位置からはなれるため、ミラースイッチS2はON状態からただちにOFF 状態に切換わる。 When the mirror drive lever 39 starts rotating in the clockwise direction (arrow C), the pin 39b is separated from the position where the mirror switch S2 is pressed, so that the mirror switch S2 immediately switches from the ON state to the OFF state. また、位相検出スイッチ44 Also, the phase detection switch 44
はミラー5が下降して像観察位置(図4に示す)にある状態ではOFF 状態に、ミラー駆動レバー39が時計(矢印C)方向にわずかに回転するとただちにON状態となる。 Is turned off when the mirror 5 is lowered and is in the image observation position (shown in FIG. 4), and is turned on immediately when the mirror drive lever 39 is slightly rotated in the clockwise direction (arrow C).
さらにモーターM2が回転をつづけて回転制限爪47がストッパー48に当接する直前、すなわち、ミラー駆動レバー39が回転してミラー5を撮影位置への上昇を完了するわずかに手前で位相検出スイッチ44はON状態から再びOF Further, the phase detection switch 44 is set just before the motor M2 continues to rotate and the rotation limiting claw 47 comes into contact with the stopper 48, that is, slightly before the mirror drive lever 39 rotates and the mirror 5 is raised to the shooting position. OF again from the ON state
F 状態へと切換わり、回転制限爪47がストッパー48に当接して歯車46の反時計(矢印B)方向への回転が停止するミラー5の上昇完了位置がOFF 状態となっている。 The state is switched to the F state, and the rotation limiting claw 47 abuts on the stopper 48 to stop the rotation of the gear 46 in the counterclockwise direction (arrow B). The ascending complete position of the mirror 5 is in the OFF state. 次に、撮影記録動作が終了後、ミラー5が撮影位置から下降して像観察位置へもどる場合には、モーターM2が時計(矢印Aと反対)方向に、歯車46およびミラー駆動カム45も時計(矢印Bと反対)方向に回転する。 Next, when the mirror 5 descends from the shooting position and returns to the image observation position after the shooting recording operation is completed, the motor M2 moves in the clockwise direction (opposite to the arrow A), and the gear 46 and the mirror drive cam 45 also watch. Rotate in the direction (opposite to arrow B). カム45の回転は、ローラー42を介してミラー駆動レバー39にミラー駆動ばね43の不勢力に抗して反時計(矢印Cと反対) The rotation of the cam 45 is counterclockwise (opposite to arrow C) against the force of the mirror drive spring 43 on the mirror drive lever 39 via the roller 42.
方向の回転力を与えるので、ミラー上昇の場合とは逆に、ミラー保持板36およびミラー5を時計(矢印Dと反対)方向に回転しミラーを像観察位置に下降する。 Since the rotational force in the direction is applied, the mirror holding plate 36 and the mirror 5 are rotated in the clockwise direction (opposite to the arrow D) to lower the mirror to the image observation position, contrary to the case where the mirror is raised. 自動絞りレバー4も像観察位置へと反時計(矢印Cと反対) The automatic aperture lever 4 also moves counterclockwise to the image observation position (opposite to arrow C).
方向に回転しレンズ1の絞り径は開放状態にもどされる。 It rotates in the direction and the aperture diameter of the lens 1 is returned to the open state. この時、位相検出スイッチ44は、ミラー上昇の際の動作を逆にたどり、ミラー下降開始直後にOFF からONへミラー下降完了直前で再びONからOFF へと接続状態を変化する。 At this time, the phase detection switch 44 reverses the operation when the mirror is raised, and changes the connection state from OFF to ON immediately after the start of mirror lowering and from ON to OFF again immediately before the mirror lowering is completed. また、ミラー上昇動作時にONからOFF へと切換ったミラースイッチ接点S2は、ミラー下降が完了する位置で再びOFF からON状態にもどされる。 Further, the mirror switch contact S2 that has been switched from ON to OFF during the mirror raising operation is returned to the ON state from OFF again at the position where the mirror lowering is completed. FIG. 4 shows a state after the completion of the photographing operation and before a new photographing operation is started. A mirror holding plate 36 for holding the mirror 5 is rotatably supported by rotating shafts 37a and 37b attached to the left and right, and a weak spring 38 for removing looseness and holding the posture is hung on the shaft 37b side. . Reference numeral 39 denotes a mirror driving lever which engages with a pin 36a implanted in the mirror holding plate 36. The mirror drive lever 39 is connected to the automatic aperture lever 4 described above. FIG. 4 shows a state after the completion of the communicating operation and before a new clamping operation is started. A mirror holding plate 36 for holding the mirror 5 is rotatably supported by rotating shafts 37a and 37b attached to the left and right, and a weak spring 38 for removing looseness and holding the posture is hung on the shaft 37b side. Reference numeral 39 Then a mirror driving lever which engages with a pin 36a implanted in the mirror holding plate 36. The mirror drive lever 39 is connected to the automatic aperture lever 4 described above.
The shaft 40 is rotatably supported coaxially with a shaft 40, and a throttle lever spring 41 is hung between the two via a pin 4a and a pin 39a. Are rotated integrally with each other around the center of rotation. The shaft 40 is rotatably supported coaxially with a shaft 40, and a throttle lever spring 41 is hung between the two via a pin 4a and a pin 39a. Are rotated with each other around the center of rotation.
A signal pin 39b for operating a mirror switch S2 for detecting a mirror start is implanted at one end of the lever 39, and a roller 42 linked to a mirror driving cam 45 is rotatably provided at the other end. I have. Mirror drive lever A signal pin 39b for operating a mirror switch S2 for detecting a mirror start is implanted at one end of the lever 39, and a roller 42 linked to a mirror driving cam 45 is rotatably provided at the other end. I have. Mirror drive lever
A spring 43 hung on a pin 39c on 39 is a mirror driving spring, and 44a and 44b constitute the phase detection switch 4 with sliding brush contacts. A rotation limiting claw 47 is fixed to a gear 46 integral with the mirror driving cam 45, and is set by a rotation stopper 48 so that the rotation angle in both clockwise and counterclockwise directions is less than one rotation. The upward and downward movement of the mirror is limited by the rotation direction of the motor M2. When the motor M2 rotates counterclockwise (arrow A) from the state shown in FIG. The gear 46 and the mirror driving cam 45 also rotate in the counterclockwise (arrow B) direction. In response, the roller 42 follows the mirror driving cam 45 by the urging force of the mirror driving spring 43, and the mirror driving lever 39 and the automatic iris lever 4 rotate clockwise (arrow C) around the shaft 40 as the rotation center. I do. Accordingly, with the movement of the automatic aperture lever 4, the aperture of th A spring 43 hung on a pin 39c on 39 is a mirror driving spring, and 44a and 44b constitute the phase detection switch 4 with sliding brush contacts. A rotation limiting claw 47 is fixed to a gear 46 integral with the mirror driving cam 45, and is set by a rotation stopper 48 so that the rotation angle in both clockwise and counterclockwise directions is less than one rotation. The upward and downward movement of the mirror is limited by the rotation direction of the motor M2. When the motor M2 rotates counterclockwise. (arrow A) from the state shown in FIG. The gear 46 and the mirror driving cam 45 also rotate in the counterclockwise (arrow B) direction. In response, the roller 42 follows the mirror driving cam 45 by the urging force of the mirror driving spring 43, and the mirror driving lever 39 and the automatic iris lever 4 rotate clockwise (arrow C) around the shaft 40 as the rotation center. I do. Accordingly, with the movement of the automatic aperture lever 4, the aperture of th e lens 1 is reduced to a predetermined aperture diameter, and at the same time, the mirror holding plate 36, which is interlocked with the mirror drive lever 39 by the pin 36a, rotates counterclockwise (arrow D). The mirror 5 moves up from the image observation position to the photographing position. When the mirror driving lever 39 starts rotating in the clockwise direction (arrow C), the pin 39b is released from the position where the mirror switch S2 is pressed, and the mirror switch S2 is immediately switched from the ON state to the OFF state. Also, the phase detection switch 44 e lens 1 is reduced to a predetermined aperture diameter, and at the same time, the mirror holding plate 36, which is interlocked with the mirror drive lever 39 by the pin 36a, rotates counterclockwise (arrow D). The mirror 5 moves up from When the mirror driving lever 39 starts rotating in the clockwise direction (arrow C), the pin 39b is released from the position where the mirror switch S2 is pressed, and the mirror switch S2 is immediately switched from the ON state to the OFF state. Also, the phase detection switch 44
The mirror 5 is turned off when the mirror 5 is lowered to the image observation position (shown in FIG. 4), and is immediately turned on when the mirror driving lever 39 is slightly rotated clockwise (arrow C). The mirror 5 is turned off when the mirror 5 is lowered to the image observation position (shown in FIG. 4), and is immediately turned on when the mirror driving lever 39 is slightly rotated clockwise (arrow C).
Further, immediately before the motor M2 continues to rotate and the rotation limiting claw 47 comes into contact with the stopper 48, that is, slightly before the mirror driving lever 39 rotates to complete the ascent of the mirror 5 to the shooting position, the phase detection switch 44 is turned on. ON again from ON state Further, immediately before the motor M2 continues to rotate and the rotation limiting claw 47 comes into contact with the stopper 48, that is, slightly before the mirror driving lever 39 rotates to complete the ascent of the mirror 5 to the shooting position, the phase detection switch 44 is turned on. ON again from ON state
The state is switched to the F state, and the rotation completion claw 47 comes into contact with the stopper 48 to stop the rotation of the gear 46 in the counterclockwise direction (arrow B). Next, after the photographing / recording operation is completed, when the mirror 5 descends from the photographing position and returns to the image observation position, the motor M2 moves clockwise (opposite to the arrow A), and the gear 46 and the mirror driving cam 45 also move clockwise. (In the direction opposite to arrow B). The rotation of the cam 45 is counterclockwise against the mirror drive lever 39 via the roller 42 against the bias of the mirror drive spring 43 (opposite the arrow C). The state is switched to the F state, and the rotation completion claw 47 comes into contact with the stopper 48 to stop the rotation of the gear 46 in the counterclockwise direction (arrow B). Next, after the imaging / recording operation is completed, when the mirror 5 descends from the imaging position and returns to the image observation position, the motor M2 moves clockwise (opposite to the arrow A), and the gear 46 and the mirror driving cam 45 also move clockwise. (In the direction opposite to arrow B). The rotation of the cam 45 is counterclockwise against the mirror drive lever 39 via the roller 42 against the bias of the mirror drive spring 43 (opposite the arrow C).
The mirror holding plate 36 and the mirror 5 are rotated in the clockwise direction (opposite to the arrow D) to lower the mirror to the image observation position, contrary to the case of raising the mirror. Automatic aperture lever 4 also moves counterclockwise to image observation position (opposite to arrow C) The mirror holding plate 36 and the mirror 5 are rotated in the clockwise direction (opposite to the arrow D) to lower the mirror to the image observation position, contrary to the case of raising the mirror. Automatic aperture lever 4 also moves counterclockwise to image observation position (opposite to arrow C)
And the aperture diameter of the lens 1 is returned to the open state. At this time, the phase detection switch 44 reverses the operation when the mirror is raised, and changes the connection state from OFF to ON immediately after the start of the mirror lowering and from ON to OFF immediately before the completion of the mirror lowering. Further, the mirror switch contact S2, which has been switched from ON to OFF during the mirror raising operation, is returned from OFF to ON again at the position where the mirror lowering is completed. And the aperture diameter of the lens 1 is returned to the open state. At this time, the phase detection switch 44 reverses the operation when the mirror is raised, and changes the connection state from OFF to ON immediately after the start of the mirror lowering And from ON to OFF immediately before the completion of the mirror lowering. Further, the mirror switch contact S2, which has been switched from ON to OFF during the mirror raising operation, is returned from OFF to ON again at the position where the mirror lowering is completed.

【0006】一方モーターM2は、上述のクイックリタ
ーンミラー機構および自動絞り機構を駆動する歯車51が
取付けられている軸と反対側には同一の回転軸が出され
ており、ネジ歯車52が固定されている。ネジ歯車52とか
み合うネジ歯車53とでモーターM2の回転は直角方向に
変換され54、55、56の歯車と伝わってラック部材57の往
復直線運動として伝達される。ラック部材57の一端に
は、シャッター35のチャージレバー35aに付設されてい
るシャッターチャージピン35bと係合するスライドレバ
ーピン57aが植設されている。図4に示す状態はスライ
ドレバーピン57aがシャッターチャージピン35bを押圧
してシャッターチャージが完了したところである。ま
た、歯車53の回転は、歯車55と1体の歯車58により歯車
59aに伝えられる。 It is transmitted to 59a. 歯車59aの内側にはカム盤59bとコロ60およびクラッチばね61とが組込まれており、一方向回転クラッチを形成している。 A cam board 59b, a roller 60, and a clutch spring 61 are incorporated inside the gear 59a to form a one-way rotary clutch. さらにカム盤59bと同一軸に固定されている歯車62には、これに圧接摺動する摩擦ばね63により回転する逆転防止64が対向して設けられており歯車62の回転(矢印J)を阻止するよう設定されている。 Further, the gear 62 fixed to the same axis as the cam board 59b is provided with a reverse rotation prevention 64 facing the gear 62, which is rotated by a friction spring 63 that slides by pressure contact, and prevents the gear 62 from rotating (arrow J). It is set to do. 歯車62と反対側の軸には歯車65が一体に結合されており、この回転は歯車66、軸67を経てネジ歯車68に伝えられる。 A gear 65 is integrally connected to the shaft opposite to the gear 62, and this rotation is transmitted to the screw gear 68 via the gear 66 and the shaft 67. ネジ歯車68は、磁気ヘッドの移動機構の駆動を行なうよう配せられたもので、上述の一方向回転逆転防止機構によって、一画面の撮影ごとに一方向所定回転角の回転を伝えるよう構成されている。 The screw gear 68 is arranged to drive the moving mechanism of the magnetic head, and is configured to transmit the rotation of a predetermined rotation angle in one direction for each screen shot by the above-mentioned one-way rotation reversal prevention mechanism. ing. 本実施例に示すシャッター35は公知のフォーカルブレーンシャッター機構で先幕と後幕のうち少なくとも先幕の走行開始を電気信号にてトリガーされるタイプのものである。 The shutter 35 shown in this embodiment is a known focal brain shutter mechanism of a type in which at least the start of traveling of the front curtain is triggered by an electric signal among the front curtain and the rear curtain. またシャッター35には、後幕走行完了直前でON状態になり、シャッターチャージにより後幕が走行準備位置に移動するとOFF 状態となる周知の後幕走行検出スイッチ(以下、 In addition, the shutter 35 is a well-known rear curtain travel detection switch (hereinafter referred to as “) that turns ON immediately before the completion of the rear curtain travel and turns OFF when the rear curtain moves to the travel preparation position due to shutter charge.
後幕スイッチと略す。 Abbreviated as rear curtain switch. 不図示)が設けられている。 (Not shown) is provided. On the other hand, the motor M2 has the same rotary shaft on the side opposite to the shaft on which the gear 51 for driving the quick return mirror mechanism and the automatic aperture mechanism is mounted, and the screw gear 52 is fixed. ing. The rotation of the motor M2 is converted to a right-angle direction by the screw gear 52 and the meshing screw gear 53, and transmitted to the gears 54, 55, and 56, and transmitted as the reciprocating linear motion of the rack member 57. At one end of the rack member 57, a slide lever pin 57a that engages with a shutter charge pin 35b attached to the charge lever 35a of the shutter 35 is implanted. In the state shown in FIG. 4, the shutter charge is completed by the slide lever pin 57a pressing the shutter charge pin 35b. The rotation of the gear 53 is performed by the gear 55 and the single gear 58. On the other hand, the motor M2 has the same rotary shaft on the side opposite to the shaft on which the gear 51 for driving the quick return mirror mechanism and the automatic aperture mechanism is mounted, and the screw gear 52 is fixed. The rotation of the motor M2 is converted to a right-angle direction by the screw gear 52 and the meshing screw gear 53, and transmitted to the gears 54, 55, and 56, and transmitted as the reciprocating linear motion of the rack member 57 At one end of the rack member 57, a slide lever pin 57a ​​that engages with a shutter charge pin 35b attached to the charge lever 35a of the shutter 35 is implanted. In the state shown in FIG. 4, the shutter charge is completed by the slide lever pin 57a ​​pressing the shutter charge pin 35b. The rotation of the gear 53 is performed by the gear 55 and the single gear 58.
It is told to 59a. A cam disc 59b, a roller 60, and a clutch spring 61 are incorporated inside the gear 59a to form a one-way rotating clutch. Further, the gear 62 fixed to the same shaft as the cam disc 59b is provided with a reverse rotation prevention 64 which is rotated by a friction spring 63 which is slidably pressed against the gear 62 to prevent the rotation of the gear 62 (arrow J). Is set to A gear 65 is integrally connected to the shaft opposite to the gear 62, and this rotation is transmitted to the screw gear 68 via the gear 66 and the shaft 67. The screw gear 68 is arranged so as to drive the moving mechanism of the magnetic head, and is configured to transmit the rotation of the predetermined rotation angle in one direction every time one screen is shot by the above-described one-way rotation reverse rotation prevention mechanism. ing. The shutter 35 shown in this embodiment is of a known focal-brain shutter type and is of a type in which at least one of the front curtai It is told to 59a. A cam disc 59b, a roller 60, and a clutch spring 61 are incorporated inside the gear 59a to form a one-way rotating clutch. Further, the gear 62 fixed to the same shaft as the cam disc 59b is provided with a reverse rotation prevention 64 which is rotated by a friction spring 63 which is slidably pressed against the gear 62 to prevent the rotation of the gear 62 (arrow J). Is set to A gear 65 is appropriately connected to the shaft opposite to the gear 62, and this rotation is transmitted to the screw gear 68 via the gear 66 and the shaft 67. The screw gear 68 is arranged so as to drive the moving mechanism of the magnetic head, and is configured to transmit the rotation of the predetermined rotation angle in one direction every time one screen is shot by the above-described one-way rotation reverse rotation prevention mechanism. Ing. The shutter 35 shown in this embodiment is of a known focal-brain shutter type and is of a type in which at least one of the front curtai n and the rear curtain is started to run by an electric signal. A well-known trailing-curtain detection switch (hereinafter, referred to as a shutter switch) that is turned on immediately before the trailing curtain travel is completed, and is turned off when the trailing curtain moves to the travel preparation position due to shutter charging. n and the rear curtain is started to run by an electric signal. A well-known trailing-curtain detection switch (hereinafter, referred to as a shutter switch) that is turned on immediately before the trailing curtain travel is completed, and is turned off when the trailing curtain moves to the travel preparation position due to shutter charging.
Abbreviated as rear curtain switch. (Not shown). Abbreviated as rear curtain switch. (Not shown).

【0007】図4に示す状態から前述のようにモーターM2がミラー5を上昇するよう反時計(矢印A)方向に回転すると、歯車51の回転が歯車50以下に伝えられるのと同時に、ネジ歯車52によりネジ歯車53が時計(矢印E)方向に回動される。この回転が歯車54、55を経て歯車56の反時計(矢印F)方向の回転として伝えられ、歯車56とかみ合うラック部材57は矢印G方向に移動する。
モーターM2のA方向の回転が前述の回転制限爪47とストッパー48で規制される所定の回転角だけ回転すると、

ラック部材57の移動に伴ってスライドレバーピン57aはシャッター35が作動可能な退避位置まで移動される。 As the rack member 57 moves, the slide lever pin 57a ​​is moved to a retracted position where the shutter 35 can be operated. またこの時、歯車58とかみ合う歯車59aも時計(矢印I) At this time, the gear 59a that meshes with the gear 58 is also a clock (arrow I).
方向に回動されるが、前述の一方向回転クラッチの作用によりカム盤59bとの間で摺動され、歯車62に逆転防止爪64がくい込んで歯車65の回転は行なわれない。 Although it is rotated in the direction, it is slid with the cam board 59b by the action of the one-way rotation clutch described above, and the reverse rotation prevention claw 64 is caught in the gear 62 to prevent the gear 65 from rotating. 次に、 next,
シャッター35が動作して撮影記録動作が終了してモーターM2が時計(矢印Aと反対)方向に起動され、前記クイックリターンミラー5の下降動作および自動絞り機構の復帰が行なわれると、ネジ歯車53および歯車54は反時計(矢印Eと反対)方向に、歯車55、56、58は時計(矢印Fと反対)方向にそれぞれ回動する。 When the shutter 35 operates, the shooting recording operation ends, the motor M2 is activated in the clockwise direction (opposite to the arrow A), the quick return mirror 5 is lowered, and the automatic aperture mechanism is restored, the screw gear 53 And the gear 54 rotates counterclockwise (opposite arrow E), and the gears 55, 56, 58 rotate clockwise (opposite arrow F). この時、シャッターチャージレバー35aは、シャッター幕の走行終了によってH方向に回動した位置にあるので、歯車56の時計(矢印Fと反対)方向の回転を受けて、ラック部材57が矢印Gと反対方向に移動されると再びスライドレバーピン57aとシャッターチャージピン35bが当接し、シャッターの走行力がチャージされ、図4に示す状態へと復帰される。 At this time, since the shutter charge lever 35a is in the position of being rotated in the H direction by the end of traveling of the shutter curtain, the rack member 57 is rotated in the clockwise direction (opposite to the arrow F) of the gear 56, and the rack member 57 is indicated by the arrow G. When it is moved in the opposite direction, the slide lever pin 57a ​​and the shutter charge pin 35b come into contact with each other again, the traveling force of the shutter is charged, and the state is restored to the state shown in FIG. 同時にモーターM2の時計(矢印Aと判定)方向の回転は、歯車58を経て歯車59aにJ方向の回転として伝えられる。 At the same time, the rotation of the motor M2 in the clock direction (determined as arrow A) is transmitted to the gear 59a via the gear 58 as a rotation in the J direction. この場合には歯車59a、カム盤59b、コロ60、クラッチばね61で構成されるクラッチ機構はくさび効果により一体となって回転し、逆転防止爪64も摩擦ばね63の摩擦力によりピン64aに当接するまで時計(矢印K)方向に回転して歯車62の回転阻止を行なわない。 In this case, the clutch mechanism consisting of the gear 59a, the cam board 59b, the roller 60, and the clutch spring 61 rotates integrally due to the wedge effect, and the reverse rotation prevention claw 64 also hits the pin 64a due to the frictional force of the friction spring 63. It rotates in the clockwise direction (arrow K) until it touches, and does not prevent the gear 62 from rotating.
それによって軸67は、クイックリターンミラーが下降動作を行なうようモーターM2が回転する時にのみ一定角度だけ時計((矢印L)方向に回転され、後述の構成によって磁気ヘッドが一画面の記録トラック分だけ送られる。 When the motor M2 rotates counterclockwise (arrow A) so as to raise the mirror 5 from the state shown in FIG. 4 as described above, the rotation of the gear 51 is transmitted to the gear 50 and below, and at the same time, the screw gear is rotated. The screw gear 53 is rotated clockwise (arrow E) by the 52. This rotation is transmitted through the gears 54 and 55 as rotation of the gear 56 in the counterclockwise (arrow F) direction, and the rack member 57 meshing with the gear 56 moves in the arrow G direction. As a result, the shaft 67 is rotated in the clockwise direction ((arrow L)) by a certain angle only when the motor M2 rotates so that the quick return mirror moves downward, and the magnetic head is rotated by the recording track on one screen according to the configuration described later. When the motor M2 rotates counterclockwise (arrow A) so as to raise the mirror 5 from the state shown in FIG. 4 as described above, the rotation of the gear 51 is transmitted to the gear 50 and below, and at the the same time, the screw gear is rotated. The screw gear 53 is rotated clockwise (arrow E) by the 52. This rotation is transmitted through the gears 54 and 55 as rotation of the gear 56 in the counterclockwise (arrow F) direction, and the rack member 57 meshing with the gear 56 moves in the arrow G direction.
When the rotation of the motor M2 in the direction A rotates by a predetermined rotation angle restricted by the rotation restricting claw 47 and the stopper 48, When the rotation of the motor M2 in the direction A rotates by a predetermined rotation angle restricted by the rotation restricting claw 47 and the stopper 48,
With the movement of the rack member 57, the slide lever pin 57a is moved to a retracted position where the shutter 35 can be operated. At this time, the gear 59a that meshes with the gear 58 is also a clock (arrow I). With the movement of the rack member 57, the slide lever pin 57a ​​is moved to a retracted position where the shutter 35 can be operated. At this time, the gear 59a that meshes with the gear 58 is also a clock (arrow I).
The gear 65 is slid with the cam disc 59b by the action of the above-described one-way rotation clutch, and the reverse rotation preventing claw 64 is engaged with the gear 62, so that the gear 65 is not rotated. next, The gear 65 is slid with the cam disc 59b by the action of the above-described one-way rotation clutch, and the reverse rotation preventing claw 64 is engaged with the gear 62, so that the gear 65 is not rotated. Next,
When the shutter 35 operates and the shooting / recording operation is completed, the motor M2 is started in the clockwise direction (opposite to the arrow A), and the lowering operation of the quick return mirror 5 and the return of the automatic aperture mechanism are performed. The gear 54 rotates counterclockwise (opposite to arrow E), and the gears 55, 56, 58 rotate clockwise (opposite to arrow F). At this time, since the shutter charge lever 35a is in a position rotated in the H direction by the end of the travel of the shutter curtain, the rack member 57 receives the rotation of the gear 56 in the clockwise direction (opposite to the arrow F), and the rack member 57 moves to the arrow G. When the shutter lever is moved in the opposite direction, the slide lever pin 57a and the shutter charge pin 35b abut again, the running force of the shutter is charged, and the state is returned to the state shown in FIG. At the same time, the rotation of the motor M2 in the clockwise directio When the shutter 35 operates and the shooting / recording operation is completed, the motor M2 is started in the clockwise direction (opposite to the arrow A), and the lowering operation of the quick return mirror 5 and the return of the automatic aperture mechanism are The gear 54 rotates counterclockwise (opposite to arrow E), and the gears 55, 56, 58 rotate clockwise (opposite to arrow F). At this time, since the shutter charge lever 35a is in a position rotated in the H direction by the end of the travel of the shutter curtain, the rack member 57 receives the rotation of the gear 56 in the clockwise direction (opposite to the arrow F), and the rack member 57 moves to the arrow G. When the shutter lever is moved in the opposite direction, the slide lever pin 57a ​​and the shutter charge pin 35b abut again, the running force of the shutter is charged, and the state is returned to the state shown in FIG. At the same time, the rotation of the motor M2 in the clockwise directio n (determined as the arrow A) is transmitted to the gear 59a via the gear 58 as rotation in the J direction. In this case, the clutch mechanism composed of the gear 59a, the cam disc 59b, the roller 60, and the clutch spring 61 is rotated integrally by the wedge effect, and the reverse rotation preventing claw 64 is brought into contact with the pin 64a by the frictional force of the friction spring 63. The gear 62 rotates in the clockwise direction (arrow K) until it contacts, and the rotation of the gear 62 is not prevented. n (determined as the arrow A) is transmitted to the gear 59a via the gear 58 as rotation in the J direction. In this case, the clutch mechanism composed of the gear 59a, the cam disc 59b, the roller 60, and the clutch spring 61 is rotated by the wedge effect, and the reverse rotation preventing claw 64 is brought into contact with the pin 64a by the frictional force of the friction spring 63. The gear 62 rotates in the clockwise direction (arrow K) until it contacts , and the rotation of the gear 62 is not prevented.
Thus, the shaft 67 is rotated in the clockwise direction (the arrow L) by a certain angle only when the motor M2 is rotated so that the quick return mirror performs the descending operation. Sent. Thus, the shaft 67 is rotated in the clockwise direction (the arrow L) by a certain angle only when the motor M2 is rotated so that the quick return mirror performs the descending operation. Sent.

【0008】以上図4に示した実施例では、シャッター
レリーズが行なわれるとシャッターが動作して撮影、記
録が行なわれた後に、クイックリターンミラーの下降時
にシャッターチャージと併行して磁気ヘッドの移動が行
なわれるよう構成されているが、磁気ヘッドの移動につ
いては、ミラー上昇時に行なうようにしてもよい。この
場合モーターの回転が逆故、歯車59a、カム盤59b、コ
ロ60、クラッチばね61の一方向回転クラッチ機構および
歯車62、摩擦ばね63、逆転防止爪64の逆転防止機構の動
作効果が逆回転方向となるよう構成することにより達成
できる。さらに軸67の回転方向が矢印Lと逆方向になる
が、これもネジ歯車68と、これとかみ合うネジ歯車71の
ねじれ角を変えることにより以下の構成が同じもので達
成可能となる。図5aは図4に示す主要機構部中ヘッド
移動機構の駆動部の他の実施例を示す斜視図であり、図
5bはその要部断面図である。図4に示す実施例では、
レリスー後モーターM2が回転して一画面分の撮影動作が行なわれるごとに、磁気ヘッド移動のための駆動機構(58〜68)が必ず動作するよう設定されているが、図5 The drive mechanism (58 to 68) for moving the magnetic head is set to operate every time the motor M2 rotates after the release and the shooting operation for one screen is performed.
a、bで示す本実施例では撮影・記録動作がうまく行なえなかった場合に、カメラ本体内の検知機構からの信号や、カメラ本体外からの信号を受けてヘッド移動を行なわないで、再び同一のトラックに再度記録を行なうことを可能にしたヘッド移動機構の駆動部を示す。 In this embodiment shown by a and b, when the shooting / recording operation is not performed well, the same is performed again without moving the head by receiving a signal from the detection mechanism inside the camera body or a signal from outside the camera body. The drive unit of the head movement mechanism which made it possible to record again on the track of is shown. 本実施例と図4に示した実施例との相違点は、図4の実施例ではカム盤59bと歯車65が軸に一体に固定されていたものを、本実施例では係脱可能にしたことにある。 The difference between this embodiment and the embodiment shown in FIG. 4 is that the cam board 59b and the gear 65 are integrally fixed to the shaft in the embodiment of FIG. 4, but can be engaged and disengaged in this embodiment. There is. 図5aに示すように、カム盤59bの反時計(矢印J)方向の回転ピン65bと歯車65aとのかみ合いによって伝えるもので、通常は、ばね70の付勢力によってこの係合が保持されている。 As shown in FIG. 5a, it is transmitted by the engagement between the rotating pin 65b in the counterclockwise direction (arrow J) of the cam board 59b and the gear 65a, and this engagement is usually held by the urging force of the spring 70. .. 歯車65aは、その断面を図5bに示すようにカム盤59bの軸に対して、円周方向、軸方向共に摺動可能に構成されており、プランジャーPLに信号が入力されると可動鉄芯が駆動されて、歯車65aに回転可能にはめ込まれているプランジャー連動レバー69がばね70の付勢力に抗して矢印M方向に動作して、歯車65aとピン65b As shown in FIG. 5b, the gear 65a is configured to be slidable in both the circumferential direction and the axial direction with respect to the axis of the cam board 59b, and is a movable iron when a signal is input to the plunger PL. The core is driven and the plunger interlocking lever 69 rotatably fitted in the gear 65a moves in the direction of arrow M against the urging force of the spring 70, and the gear 65a and the pin 65b
の係合が解除される。 Is disengaged. したがって、カメラ本体外部からの操作やカメラ本体内の検知による信号をうけて、プランジャーPLが動作すると、モーターM2の回転が行なわれても軸67は歯車66aに逆転防止爪64の係合をはずすに十分な回転力が与えられないため回転されない。 Therefore, when the plunger PL operates in response to an operation from the outside of the camera body or a signal detected inside the camera body, the shaft 67 engages the reverse rotation prevention claw 64 with the gear 66a even if the motor M2 is rotated. It is not rotated because sufficient rotational force is not applied to remove it. プランジャーPLへの信号は、モーターM2が歯車59aを矢印J As for the signal to the plunger PL, the motor M2 points the gear 59a to the arrow J.
方向に回転させるよう回転するスタート時のわずかな時間だけ与えられるよう設定されているので、歯車59aおよびカム盤59bが所定角度だけ回転すると、ばね70の不勢力により歯車65aとピン65bとが再び係合する。 Since it is set to be given only a short time at the start of rotation so as to rotate in the direction, when the gear 59a and the cam board 59b rotate by a predetermined angle, the gear 65a and the pin 65b are re-engaged by the force of the spring 70. Engage. 本実施例では、歯車59aおよびカム盤59bは、一画面の撮影で360 °回転するよう設定されており、歯車65aのピンIn this embodiment, the gear 59a and the cam board 59b are set to rotate 360 ​​° in a single screen image, and the pins of the gear 65a are set.
65bとの係合溝も1箇所となっている。 There is also one engagement groove with 65b. また、上述のようにプランジャーPLが動作して、磁気ヘッドの移動が行なわれない場合には、後述の撮影駒数を示すカウンターへの入力は停止され、表示器8の表示する数値は変化しない。 Further, when the plunger PL operates as described above and the magnetic head is not moved, the input to the counter indicating the number of shooting frames described later is stopped, and the numerical value displayed by the display 8 changes. do not do. In the embodiment shown in FIG. 4, when the shutter is released, the shutter is operated to perform photographing and recording, and then the magnetic head moves along with the shutter charge when the quick return mirror is lowered. The magnetic head is moved when the mirror is raised. In this case, since the rotation of the motor is reverse, the operation effect of the one-way rotation clutch mechanism of the gear 59a, the cam disc 59b, the roller 60, the clutch spring 61 and the reverse rotation preventing mechanism of the gear 62, the friction spring 63, and the reverse rotation preventing claw 64 is reversed. This can be achieved by configuring the direction. Further, the direction of rotation of the shaft 67 is opposite to the direction of the arrow L, but this can also be achieved by changing the torsion angle of the screw gear 68 and the screw gear 71 meshing therewith with the same configuration as described below. FIG. 5A is a perspective view showing another embodiment of the In the embodiment shown in FIG. 4, when the shutter is released, the shutter is operated to perform rotating and recording, and then the magnetic head moves along with the shutter charge when the quick return mirror is lowered. The magnetic head is moved when The mirror is raised. In this case, since the rotation of the motor is reverse, the operation effect of the one-way rotation clutch mechanism of the gear 59a, the cam disc 59b, the roller 60, the clutch spring 61 and the reverse rotation preventing mechanism of the gear 62, the friction spring 63, and the reverse rotation preventing claw 64 is reversed. This can be achieved by configuring the direction. Further, the direction of rotation of the shaft 67 is opposite to the direction of the arrow L, but this can also be achieved by changing the torsion angle of the screw gear 68 and the screw gear 71 meshing therewith with the same configuration as described below. FIG. 5A is a perspective view showing another embodiment of the driving section of the head moving mechanism in the main mechanism section shown in FIG. 4, and FIG. 5B is a sectional view of a main part thereof. In the embodiment shown in FIG. driving section of the head moving mechanism in the main mechanism section shown in FIG. 4, and FIG. 5B is a sectional view of a main part thereof. In the embodiment shown in FIG.
The drive mechanism (58-68) for moving the magnetic head is set to always operate every time the motor M2 rotates after the release and the photographing operation for one screen is performed. The drive mechanism (58-68) for moving the magnetic head is set to always operate every time the motor M2 rotates after the release and the operating operation for one screen is performed.
In this embodiment shown by a and b, when the photographing / recording operation cannot be performed successfully, the head is not moved in response to a signal from a detection mechanism in the camera body or a signal from outside the camera body, and the same operation is performed again. 1 shows a drive unit of a head moving mechanism which enables recording to be performed again on a track. The difference between this embodiment and the embodiment shown in FIG. 4 is that the cam disk 59b and the gear 65 are fixed integrally to the shaft in the embodiment of FIG. It is in. As shown in FIG. 5A, the rotation is transmitted by the engagement between the rotating pin 65b of the cam disk 59b in the counterclockwise (arrow J) direction and the gear 65a, and this engagement is normally held by the urging force of the spring 70. . As shown in FIG. 5B, the gear 65a is configured to be slidable in both the circumferential and axial directions with respect to the axis of the cam disc 59b. Whe In this embodiment shown by a and b, when the rotating / recording operation cannot be performed successfully, the head is not moved in response to a signal from a detection mechanism in the camera body or a signal from outside the camera body, and the same operation is performed again. 1 shows a drive unit of a head moving mechanism which enables recording to be performed again on a track. The difference between this embodiment and the embodiment shown in FIG. 4 is that the cam disk 59b and the gear 65 are fixedly to the shaft in the embodiment of FIG. It is in. As shown in FIG. 5A, the rotation is transmitted by the engagement between the rotating pin 65b of the cam disk 59b in the counterclockwise (arrow J) direction and the gear 65a, and this engagement is normally held by the urging force of the spring 70 .. As shown in FIG. 5B, the gear 65a is configured to be slidable in both the propagated and axial directions with respect to the axis of the cam disc 59b . Whe n the lead is driven, the plunger interlocking lever 69 rotatably fitted into the gear 65a operates in the direction of arrow M against the urging force of the spring 70, and the gear 65a and the pin 65b are moved. n the lead is driven, the plunger interlocking lever 69 rotatably fitted into the gear 65a operates in the direction of arrow M against the urging force of the spring 70, and the gear 65a and the pin 65b are moved.
Is disengaged. Therefore, when the plunger PL operates in response to a signal from an operation from outside the camera body or detection inside the camera body, even if the motor M2 rotates, the shaft 67 engages the gear 66a with the reverse rotation preventing claw 64. It does not rotate because it does not have enough torque to remove it. The signal to the plunger PL is indicated by the motor M2 pointing the gear 59a to the arrow J. Is disengaged. Therefore, when the plunger PL operates in response to a signal from an operation from outside the camera body or detection inside the camera body, even if the motor M2 rotates, the shaft 67 engages the gear 66a with the reverse rotation preventing claw 64. It does not rotate because it does not have enough torque to remove it. The signal to the plunger PL is indicated by the motor M2 pointing the gear 59a to the arrow J.
When the gear 59a and the cam disc 59b are rotated by a predetermined angle, the gear 65a and the pin 65b are re-established by the repulsive force of the spring 70. Engage. In the present embodiment, the gear 59a and the cam board 59b are set to rotate 360 ° in one screen shot. When the gear 59a and the cam disc 59b are rotated by a predetermined angle, the gear 65a and the pin 65b are re-established by the repulsive force of the spring 70. Engage. In the present embodiment, the gear 59a and the cam board 59b are set to rotate 360 ​​° in one screen shot.
There is also one engagement groove with 65b. When the plunger PL operates as described above and the magnetic head does not move, the input to the counter indicating the number of frames to be described later is stopped, and the numerical value displayed on the display 8 changes. do not do. There is also one engagement groove with 65b. When the plunger PL operates as described above and the magnetic head does not move, the input to the counter indicating the number of frames to be described later is stopped, and the numerical value displayed on the display 8 changes. Do not do.

【0009】図6は、図1bのIII −III 断面視図であ
って本発明の実施例のカメラの背面から見た断面図であ
り、図2に示した磁気記録ディスクと平行な平面を示す
ものである。図7は、図6に示すヘッド移動機構の一部
を部分的に示した斜視図、図8はヘッド移動機構の歯車
の動作を示す図である。
FIG. 6 is a sectional view taken along the line III-III of FIG. 1b, and is a sectional view seen from the back of the camera according to the embodiment of the present invention, and shows a plane parallel to the magnetic recording disk shown in FIG. Things. FIG. 7 is a perspective view partially showing a part of the head moving mechanism shown in FIG. 6, and FIG. 8 is a view showing an operation of a gear of the head moving mechanism.

【0010】前述のディスク回転用モーターM1は、カ
メラの小型化のためにペンタプリズム15の側部で電池34
の上部の位置に配されている、尚、円盤形磁気ディスクに同心円状に記録される映像信号を記録または再生する装置においては、装置の互換性も考慮すると、一定の回転周波数(たとえば1800rpm または3600rpm)で等速度回転で磁気シート(または磁気ヘッド)が回転することが望ましい。 In the device that records or reproduces the video signal concentrically recorded on the disk-shaped magnetic disk, which is located at the upper part of the device, a constant rotation frequency (for example, 1800 rpm or It is desirable that the magnetic sheet (or magnetic head) rotate at a constant speed (3600 rpm). 磁気シートを回転する装置において、磁気シートの回転の等速性を乱す要素としては、シートの回転駆動手段(モーター)に加わる負荷の変動と、装置に外部から加わる振動や外力とが考えられ、これらの影響を小さくすることが等速性を高めることにつながる。 In a device that rotates a magnetic sheet, factors that disturb the constant velocity of rotation of the magnetic sheet are considered to be fluctuations in the load applied to the rotation driving means (motor) of the sheet, vibration and external force applied to the device from the outside. Reducing these effects leads to higher constant velocity. 一方、本発明に係る装置においては、磁気ヘッドの移動による記録トラックの切換え機構、シャッター機構、クイックリターンミラー機構および自動絞り機構等の直接または間接的な駆動をモーターで行なうことにより、速写性やシーケンス動作の確実性が向上することになる。 On the other hand, in the apparatus according to the present invention, a motor directly or indirectly drives a recording track switching mechanism, a shutter mechanism, a quick return mirror mechanism, an automatic aperture mechanism, etc. by moving a magnetic head, thereby achieving quick shooting. The certainty of the sequence operation will be improved. この磁気シートの回転動作とカメラの各機構の駆動動作の2つを1個のモーターで行なおうとすると、モーターが大型化してカメラの様に比較的小型性が要求される装置においては、他の機構や回路部材の配置に制約を与えるばかりでなく、前者の等速回転性に対して後者の負荷変動が悪影響を与えるなどの不都合が生じる。 If one motor is used to perform both the rotation operation of the magnetic sheet and the drive operation of each mechanism of the camera, in a device such as a camera where the motor becomes large and relatively small size is required, the other Not only does it impose restrictions on the arrangement of the mechanism and circuit members of the above, but it also causes inconveniences such as the load fluctuation of the latter adversely affecting the constant velocity rotation of the former. したがって本発明の実施例においては、恒速、高速応答が要求される磁気シート回転用モーターM1と、駆動トルクが主に要求されるカメラ各機構部の駆動用モーターM2とをそれぞれ備えている。 Therefore, in the embodiment of the present invention, the magnetic seat rotation motor M1 that requires constant speed and high-speed response and the drive motor M2 of each camera mechanism unit that mainly requires drive torque are provided. また、モーターM1とモーターM2 In addition, motor M1 and motor M2
の動作態様も、モーターM2の被駆動部材が撮影シーケンスの進行に応じて起動、停止をくり返すのに対して、 As for the operation mode of the motor M2, the driven member of the motor M2 repeatedly starts and stops according to the progress of the photographing sequence.
モーターM1にて回転される磁気シートは撮影動作中だけでなく、撮影準備動作中にも連続して回転していることが速写性を高めるのに望ましく、両者をそれぞれ別個のモーターで駆動することが得策である。 It is desirable that the magnetic sheet rotated by the motor M1 is continuously rotated not only during the shooting operation but also during the shooting preparation operation in order to improve the quick shooting performance, and both are driven by separate motors. Is a good idea. モーターM1 Motor M1
にベルト26によって結合されたディスク駆動軸25は定速回転を維持するためのフライホイールの機能を兼ねるための慣性モーメントの大きな材質・形状にて形成されている。 The disc drive shaft 25 connected by the belt 26 is made of a material and shape having a large moment of inertia to also function as a flywheel for maintaining constant speed rotation. 89は、ディスク駆動軸25の回転速度と位相を検出して制御するためのセンサーで、たとえば発光ダイオードと光電変換素子からなるフォトカプラーかまたは磁点変化を検知するホール素子などからなっている。 Reference numeral 89 denotes a sensor for detecting and controlling the rotation speed and phase of the disk drive shaft 25, for example, a photocoupler composed of a light emitting diode and a photoelectric conversion element, or a Hall element for detecting a change in magnetic point. したがってディスク駆動軸25の外周には、速度検出パルス発生のために、少なくとも1つ以上の光反射部または磁極が形成されている。 Therefore, at least one or more light reflecting portions or magnetic poles are formed on the outer periphery of the disc drive shaft 25 for generating the speed detection pulse. 図4で示した様に駆動モーターM2の回転は、ネジ歯車68の反時計(矢印L)方向の回転(図4では時計方向回転)として、ネジ歯車71に伝達される。 As shown in FIG. 4, the rotation of the drive motor M2 is transmitted to the screw gear 71 as a counterclockwise (arrow L) rotation of the screw gear 68 (clockwise rotation in FIG. 4). ネジ歯車71と同軸に一体固定された歯車72は、図7 The gear 72, which is integrally fixed coaxially with the screw gear 71, is shown in FIG.
および図8に示すような歯先の一部を切欠いた歯車で、 And with a gear with a part of the tooth tip cut out as shown in FIG.
歯車73とかみ合う。 Engage with gear 73. 歯車73は歯車74、ラチェット車78と共にリードネジ77の軸に一体固定されている。 The gear 73 is integrally fixed to the shaft of the lead screw 77 together with the gear 74 and the ratchet wheel 78. このリードネジ77は、その矢印N方向への回転により磁気記録ヘッド30が付設されている支持部材86をガイド軸87に沿って平行移動するためのものである。 The lead screw 77 is for moving the support member 86 to which the magnetic recording head 30 is attached in parallel along the guide shaft 87 by rotating in the direction of the arrow N. 歯車74にかみ合う歯車75には、リードネジ77のスタート位置から順時撮影を進める場合に回転する方向に抗して逆方向の回転力を与えるばね76がかけられている。 A spring 76 that applies a rotational force in the opposite direction to the direction of rotation is applied to the gear 75 that meshes with the gear 74 when the forward shooting is performed from the start position of the lead screw 77. ラチェット車78に対しては図7でその斜視図を示すような係止爪79が、軸81に回動可能に支持されており、係止ばね80の力によってラチェット車78の時計方向(矢印Nと反対)の回転を阻止できるよう配設されている。 For the ratchet wheel 78, the locking claw 79 as shown in the perspective view in FIG. 7 is rotatably supported by the shaft 81, and the force of the locking spring 80 causes the ratchet wheel 78 to rotate clockwise (arrow). It is arranged so as to prevent the rotation (opposite to N). さらに係止爪79のラチェット車と反対側の1端と係合可能な係止解除レバー82が軸85 Furthermore, the unlocking lever 82 that can engage with one end of the locking claw 79 on the opposite side of the ratchet wheel is the shaft 85.
に回動可能に支持されており、係止解除ばね84の力により時計(矢印O)方向に付勢されている。 It is rotatably supported and urged in the clockwise (arrow O) direction by the force of the unlocking spring 84. ここで係止解除ばね84の回動力は、係止ばね80の回動力よりも大きく設定されているので、係止解除レバー82が時計(矢印O)方向に回動する場合には一端82aが係止爪79の一端Here, the rotational power of the unlocking spring 84 is set to be larger than the rotational power of the locking spring 80. Therefore, when the unlocking lever 82 rotates in the clockwise (arrow O) direction, one end 82a is set. One end of the locking claw 79
79aを押し係止爪79とラチェット車78の係合をつねに解除する位置に保持される。 The 79a is pushed and held in a position where the locking claw 79 and the ratchet wheel 78 are always disengaged. しかしながら、通常の撮影時には図 3に示した様に解除レバー82の先端に付設したカセット検知ピン83がカセット20の外側部と当接して解除レバー82の時計(矢印O)方向への回動が阻止されるので、先端部82aと79aの間には隙間が生じ係止爪79がラチェット車78を係止可能な状態となっている。 However, during normal shooting, as shown in FIG. 3, the cassette detection pin 83 attached to the tip of the release lever 82 comes into contact with the outer portion of the cassette 20 and the release lever 82 rotates in the clock (arrow O) direction. Since it is blocked, a gap is formed between the tip portions 82a and 79a, and the locking claw 79 is in a state where the ratchet wheel 78 can be locked. 次に図6と図7で示した磁気記録ヘッド30の記録トラック切換えのためのヘッド移動機構の動作を以下で説明する。 Next, the operation of the head moving mechanism for switching the recording track of the magnetic recording head 30 shown in FIGS. 6 and 7 will be described below. 前述の如く、カメラの撮影動作シーケンスの所定の動作時(本発明の実施例ではミラー下降およびシャッターチャージ時)にネジ歯車68が一定方向(矢印L方向)に回転しその結果、歯車72は矢印M方向に一定角度(120°)だけ回転する。 As described above, the screw gear 68 rotates in a certain direction (arrow L direction) during a predetermined operation of the camera shooting operation sequence (when the mirror is lowered and the shutter is charged in the embodiment of the present invention), and as a result, the gear 72 is an arrow It rotates by a certain angle (120 °) in the M direction. ここで歯車72はたとえば図8に示す如く歯数総数9歯の歯車を3歯ごとに1歯ずつ等間かくに残した形に、歯車73は歯数10の平歯車で構成されている。 Here, for example, as shown in FIG. 8, the gear 72 is formed by leaving a gear having a total of 9 teeth at equal intervals of 1 tooth for every 3 teeth, and the gear 73 is composed of a spur gear having 10 teeth. 歯車72は、ネジ歯車68からの回転力を受けない状態では、 When the gear 72 is not subjected to the rotational force from the screw gear 68,
図8iのの位置にあり歯車73とはかみ合わない状態にある。 It is in the position shown in FIG. 8i and does not mesh with the gear 73. この時、歯車73は、カメラにカセットが挿入されていない場合には、ばね76によりリードネジ77に送り方向(矢印N方向)と逆の回転力が加えられているのでスタート位置になっている。 At this time, when the cassette is not inserted in the camera, the gear 73 is in the start position because a rotational force opposite to the feed direction (arrow N direction) is applied to the lead screw 77 by the spring 76. カセットが挿入されている場合にはラチェット車78と係止爪79の係合が行なわれるので、スタート位置からラチェット車78のある歯数分送られた位置(カセット挿入直後はスタート位置)で係止されている。 When the cassette is inserted, the ratchet wheel 78 and the locking claw 79 are engaged, so the position is the position sent from the start position by the number of teeth of the ratchet wheel 78 (the start position immediately after the cassette is inserted). It has been stopped. いま歯車73とラチェット車78の歯数は同一(10歯)に設定されているので、歯車73の位置は、カセットが挿入されているいないにかかわらず、すなわち、 Since the number of teeth of the gear 73 and the ratchet wheel 78 are now set to the same (10 teeth), the position of the gear 73 is set regardless of whether or not the cassette is inserted, that is,
スタート位置から送られたラチェット車の歯数にかかわらず図8iのの位置にある。 It is in the position shown in FIG. 8i regardless of the number of teeth of the ratchet car sent from the start position. 次に前述のモーターM2 Next, the above-mentioned motor M2
の動作により、ネジ歯車68からの回転を受けると、歯車When it receives rotation from the screw gear 68 due to the operation of
72は矢印M方向に回転を開始し、図8iのの位置で歯車73とかみ合い、さらにiiのの位置をへて回転をつづけ所定角度だけの回転を行なう。 72 starts rotating in the direction of arrow M, meshes with the gear 73 at the position shown in FIG. 8i, continues to rotate through the position of ii, and rotates by a predetermined angle. 本発明の実施例では一画面の撮影動作により、歯車72が120 °すなわち残された歯で一歯分回転するようモーターM2からのネジ歯車In the embodiment of the present invention, the screw gear from the motor M2 rotates the gear 72 by 120 °, that is, one tooth with the remaining teeth by the one-screen photographing operation.
68および71までの歯車の歯数が設定されている。 The number of gear teeth up to 68 and 71 is set. したがって歯72は図8iii のの位置をへて'の位置まで回転するが、途中の位置で歯車73とのかみ合いがはずれる。 Therefore, the tooth 72 rotates from the position shown in FIG. 8iii to the position of', but is disengaged from the gear 73 at an intermediate position. 歯73はの状態ではの位置から矢印N方向に約45 Approximately 45 in the direction of arrow N from the position of tooth 73
°回転しているが歯車72とのかみ合いが外れると、ばね° Rotating, but when disengaged from gear 72, spring
76の力により矢印Nとは逆の方向に回転する。 The force of 76 rotates in the direction opposite to the arrow N. このときカメラにカセットが挿入されていれば、ラチェット車78 If the cassette is inserted in the camera at this time, the ratchet car 78
が1歯分(36°)をこえて少し回転した位置から逆回転して係止爪79と、ばね80の力により係合して、歯車73およびラチェット車78の歯数1個分だけ回転した位置' Rotates backward from a position slightly rotated beyond one tooth (36 °), engages with the locking claw 79 by the force of the spring 80, and rotates by the number of teeth of the gear 73 and the ratchet wheel 78. Position'
で停止する。 Stop at. これで一画面分の送り動作が完了し再びの状態となる。 This completes the feed operation for one screen and returns to the state again. したがって撮影一駒についてリードネジTherefore, the lead screw for one shooting piece
77が1/10回転(36°)だけ回転され、磁気記録ヘッドは、リードネジ77のリードピッチの1/10(たとえばリードピッチが1mmの場合には100 μ)ずつ移動され、これが記録トラックのピッチ間かくとなる。 The 77 is rotated by 1/10 turn (36 °), and the magnetic recording head is moved by 1/10 of the lead pitch of the lead screw 77 (for example, 100 μ when the lead pitch is 1 mm), which is the pitch of the recording track. It will be a short time. また上記動作時にカセットが挿入されていない場合や、所定画面駒数撮影後カセットを取り出した場合には、前述のとおりラチェット車78と係止爪79の係合が解除された状態になるので、ばね76の力により磁気記録ヘッド30の支持部材86 If the cassette is not inserted during the above operation, or if the cassette is taken out after shooting a predetermined number of screen frames, the ratchet wheel 78 and the locking claw 79 are disengaged as described above. Support member 86 of the magnetic recording head 30 by the force of the spring 76
はスタート位置へもどされる。 Is returned to the starting position. 88は支持部材がスタート位置にもどった際に当接して、スタート位置を規制するための制限ピンでカメラ本体の支持基板19に調整可能に取付けられている。 The 88 comes into contact with the support member when it returns to the start position, and is adjustablely attached to the support board 19 of the camera body with a limiting pin for regulating the start position. S3は解除レバー82の一端に当接してカセット挿入の有無による検知ピン83の動作に連動する電気接点で、カセットが挿入されていない場合には解除レバー82の時計(矢印0)方向への回動に応じて、前述の駒数カウンター表示の数値を0にもどすためのものである。 S3 is an electrical contact that comes into contact with one end of the release lever 82 and is linked to the operation of the detection pin 83 depending on whether or not the cassette is inserted. If the cassette is not inserted, the release lever 82 is rotated in the clock (arrow 0) direction. This is for returning the numerical value of the above-mentioned number of pieces counter display to 0 according to the movement. このように構成されているので、撮影駒数の如何にかかわりなくカセットの取出しにより磁気記録ヘッドはスタート位置へ復帰しカウンター表示も0となる。 Since it is configured in this way, the magnetic recording head returns to the start position and the counter display becomes 0 by taking out the cassette regardless of the number of shooting frames.
本発明装置のように、円盤形磁気記録媒体の複数の記録トラックに順次映像信号を記録していく電子記録式スチルカメラにおいては、磁気ヘッドを移動して記録トラックを切換える機構は、単に、1画面の撮影ごとにトラック位置を所定量(たとえば1トラック)ずつ移動させるだけでなく、複数の磁気シートカセットの交換使用にも対応できるようにすることにより、より有用なものとなる。 In an electronic recording type still camera that sequentially records video signals on a plurality of recording tracks of a disk-shaped magnetic recording medium such as the apparatus of the present invention, the mechanism for moving the magnetic head to switch the recording track is simply 1. It becomes more useful not only by moving the track position by a predetermined amount (for example, one track) each time the screen is photographed, but also by making it possible to replace and use a plurality of magnetic sheet cassettes. The above-described disk rotation motor M1 is provided with a battery 34 at the side of the pentaprism 15 to reduce the size of the camera. The above-described disk rotation motor M1 is provided with a battery 34 at the side of the pentaprism 15 to reduce the size of the camera.
In a device for recording or reproducing a video signal concentrically recorded on a disk-shaped magnetic disk, a fixed rotation frequency (for example, 1800 rpm or 1800 rpm) is taken into consideration in consideration of device compatibility. It is desirable that the magnetic sheet (or magnetic head) rotate at a constant speed of 3600 rpm. In a device for rotating a magnetic sheet, factors that disturb the constant speed of rotation of the magnetic sheet are considered to be a variation in a load applied to a rotation driving means (motor) of the sheet, a vibration and an external force applied to the device from the outside, Reducing these effects leads to an increase in uniformity. On the other hand, in the apparatus according to the present invention, the direct or indirect driving of the recording track switching mechanism by the movement of the magnetic head, the shutter mechanism, the quick return mirror mechanism, the automatic aperture mechanism, and the like is performed by In a device for recording or reproducing a video signal concentrically recorded on a disk-shaped magnetic disk, a fixed rotation frequency (for example, 1800 rpm or 1800 rpm) is taken into consideration in consideration of device compatibility. It is desirable that the magnetic sheet (or magnetic head) rotate at a constant speed of 3600 rpm. In a device for rotating a magnetic sheet, factors that disturb the constant speed of rotation of the magnetic sheet are considered to be a variation in a load applied to a rotation driving means (motor) of the sheet, a vibration and an external force applied to the device from the outside, Reducing these effects leads to an increase in uniformity. On the other hand, in the apparatus according to the present invention, the direct or indirect driving of the recording track switching mechanism by the movement of the magnetic head, the shutter mechanism, the quick return mirror mechanism, the automatic aperture mechanism, and the like is performed by a motor, so that the quick shooting performance and the like are improved. The reliability of the sequence operation is improved. If an attempt is made to perform two operations, the rotation operation of the magnetic sheet and the driving operation of each mechanism of the camera, by a single motor, in a device that requires a relatively small size like a camera due to an increase in the size of the motor, there is another problem. In addition to restricting the arrangement of the mechanism and the circuit members, the disadvantage that the load fluctuation of the latter adversely affects the constant-speed rotation of the former. Therefore, the embodiment of the present invention includes the magnetic sheet rotating motor M1 that requires constant speed and high-speed response, and the driving motor M2 of each camera unit that mainly requires driving torque. Motor M1 and motor M2 a motor, so that the quick shooting performance and the like are improved. The reliability of the sequence operation is improved. If an attempt is made to perform two operations, the rotation operation of the magnetic sheet and the driving operation of each mechanism of the camera, by a single motor, in a device that requires a relatively small size like a camera due to an increase in the size of the motor, there is another problem. In addition to restricting the arrangement of the mechanism and the circuit members, the disadvantage that the load fluctuation of the latter adversely affects the constant-speed rotation of the former. Therefore, the embodiment of the present invention includes the magnetic sheet rotating motor M1 that requires constant speed and high-speed response, and the driving motor M2 of Each camera unit that mainly requires driving torque. Motor M1 and motor M2
In the operation mode described above, while the driven member of the motor M2 repeatedly starts and stops according to the progress of the imaging sequence, In the operation mode described above, while the driven member of the motor M2 repeatedly starts and stops according to the progress of the imaging sequence,
It is desirable that the magnetic sheet rotated by the motor M1 be continuously rotated not only during the photographing operation but also during the photographing preparation operation in order to enhance the quick shooting performance, and both are driven by separate motors. Is a good idea. Motor M1 It is desirable that the magnetic sheet rotated by the motor M1 be continuously rotated not only during the imaging operation but also during the printing preparation operation in order to enhance the quick shooting performance, and both are driven by separate motors. Is a good idea. Motor M1
The disk drive shaft 25 connected to the belt 26 is formed of a material and a shape having a large moment of inertia to serve also as a flywheel function for maintaining a constant speed rotation. Reference numeral 89 denotes a sensor for detecting and controlling the rotation speed and phase of the disk drive shaft 25, and includes, for example, a photocoupler including a light emitting diode and a photoelectric conversion element or a Hall element for detecting a change in magnetic point. Therefore, at least one or more light reflecting portions or magnetic poles are formed on the outer periphery of the disk drive shaft 25 for generating a speed detection pulse. As shown in FIG. 4, the rotation of the drive motor M2 is transmitted to the screw gear 71 as the rotation of the screw gear 68 in the counterclockwise (arrow L) direction (clockwise rotation in FIG. 4). The gear 72 fixed coaxially with the screw gear 71 is shown in FIG. The disk drive shaft 25 connected to the belt 26 is formed of a material and a shape having a large moment of inertia to serve also as a flywheel function for maintaining a constant speed rotation. Reference article 89 Then a sensor for detecting and controlling the rotation. speed and phase of the disk drive shaft 25, and includes, for example, a photocoupler including a light emitting diode and a photoelectric conversion element or a Hall element for detecting a change in magnetic point. Therefore, at least one or more light reflecting portions. or magnetic poles are formed on the outer peripheral of the disk drive shaft 25 for generating a speed detection pulse. As shown in FIG. 4, the rotation of the drive motor M2 is transmitted to the screw gear 71 as the rotation of the screw gear 68 in the counterclockwise (arrow L) direction (clockwise rotation in FIG. 4). The gear 72 fixed coaxially with the screw gear 71 is shown in FIG.
And a gear with a part of the tooth tip notched as shown in FIG. And a gear with a part of the tooth tip notched as shown in FIG.
Meshes with gear 73. The gear 73 is integrally fixed to the shaft of the lead screw 77 together with the gear 74 and the ratchet wheel 78. The lead screw 77 is for moving the support member 86 provided with the magnetic recording head 30 in parallel along the guide shaft 87 by the rotation in the direction of the arrow N. The gear 75 meshing with the gear 74 is provided with a spring 76 that applies a rotational force in the opposite direction against the direction of rotation when performing the sequential photographing from the start position of the lead screw 77. 7, a locking claw 79 as shown in a perspective view in FIG. 7 is rotatably supported on the shaft 81, and the force of the locking spring 80 causes the ratchet wheel 78 to rotate clockwise (arrow). (Opposite to N). Further, an unlocking lever 82 capable of engaging with one end of the locking claw 79 opposite to the ratchet wheel is provided with a shaft 85. Meshes with gear 73. The gear 73 is therefore fixed to the shaft of the lead screw 77 together with the gear 74 and the ratchet wheel 78. The lead screw 77 is for moving the support member 86 provided with the magnetic recording head 30 in parallel along the guide shaft 87 by the rotation in the direction of the arrow N. The gear 75 meshing with the gear 74 is provided with a spring 76 that applies a rotational force in the opposite direction against the direction of rotation when performing the sequential operating from the start position of the lead screw 77. 7, a locking claw 79 as shown in a perspective view in FIG. 7 is rotatably supported on the shaft 81, and the force of the locking spring 80 causes the ratchet wheel 78 to rotate clockwise ( arrow). (Opposite to N). Further, an unlocking lever 82 capable of engaging with one end of the locking claw 79 opposite to the ratchet wheel is provided with a shaft 85.
And is urged in the clockwise (arrow O) direction by the force of the lock release spring 84. Here, the turning force of the locking release spring 84 is set to be larger than the turning force of the locking spring 80, and therefore, when the locking release lever 82 rotates clockwise (arrow O), one end 82a is turned. One end of locking claw 79 And is urged in the clockwise (arrow O) direction by the force of the lock release spring 84. Here, the turning force of the locking release spring 84 is set to be larger than the turning force of the locking spring 80, and therefore, when the locking release lever 82 rotates clockwise (arrow O), one end 82a is turned. One end of locking claw 79
79a is held at a position where the engagement between the locking pawl 79 and the ratchet wheel 78 is always released. However, during normal photographing, as shown in FIG. 3, the cassette detection pin 83 attached to the tip of the release lever 82 comes into contact with the outside of the cassette 20, and the release lever 82 rotates clockwise (arrow O). As a result, a gap is formed between the tip portions 82a and 79a, and the locking claw 79 can lock the ratchet wheel 78. Next, the operation of the head moving mechanism for switching the recording track of the magnetic recording head 30 shown in FIGS. 6 and 7 will be described below. As described above, the screw gear 68 rotates in a fixed direction (the direction of the arrow L) at the time of a predetermined operation of the photographing operation sequence of the camera (in the embodiment of the present invention, when the mirror is lowered and the shutter is charged). It rotates by a certain angle (120 °) in the M direction. 79a is held at a position where the engagement between the locking pawl 79 and the ratchet wheel 78 is always released. However, during normal rotating, as shown in FIG. 3, the cassette detection pin 83 attached to the tip of the release lever 82 comes into contact with the outside of the cassette 20, and the release lever 82 rotates clockwise (arrow O). As a result, a gap is formed between the tip portions 82a and 79a, and the locking claw 79 can lock the ratchet wheel 78 Next, the operation of the head moving mechanism for switching the recording track of the magnetic recording head 30 shown in FIGS. 6 and 7 will be described below. As described above, the screw gear 68 rotates in a fixed direction (the direction of) the arrow L) at the time of a predetermined operation of the operating operation sequence of the camera (in the embodiment of the present invention, when the mirror is lowered and the shutter is charged). It rotates by a certain angle (120 °) in the M direction. Here, as shown in FIG. 8, for example, the gear 72 is formed by leaving a gear having a total number of 9 teeth at every three teeth at regular intervals, and the gear 73 is constituted by a spur gear having 10 teeth. In a state where the gear 72 does not receive the rotational force from the screw gear 68, Here, as shown in FIG. 8, for example, the gear 72 is formed by leaving a gear having a total number of 9 teeth at every three teeth at regular intervals, and the gear 73 is configured by a spur gear having 10 teeth. In a state where the gear 72 does not receive the rotational force from the screw gear 68,
It is in the position shown in FIG. 8i and does not mesh with the gear 73. At this time, when the cassette is not inserted into the camera, the gear 73 is at the start position because a spring 76 applies a rotational force to the lead screw 77 in a direction opposite to the feed direction (the direction of the arrow N). When the cassette is inserted, the ratchet wheel 78 and the locking claw 79 are engaged, so the engagement is performed at a position where the ratchet wheel 78 is fed by a certain number of teeth from the start position (the start position immediately after the cassette is inserted). Has been stopped. Now, the number of teeth of the gear 73 and the ratchet wheel 78 is set to be the same (10 teeth). Therefore, the position of the gear 73 is set regardless of whether the cassette is inserted, that is, It is in the position shown in FIG. 8i and does not mesh with the gear 73. At this time, when the cassette is not inserted into the camera, the gear 73 is at the start position because a spring 76 applies a rotational force to The lead screw 77 in a direction opposite to the feed direction (the direction of the arrow N). When the cassette is inserted, the ratchet wheel 78 and the locking claw 79 are engaged, so the engagement is performed at a position where the ratchet wheel 78 is fed by a certain number of teeth from the start position (the start position immediately after the cassette is inserted). Has been stopped. Now, the number of teeth of the gear 73 and the ratchet wheel 78 is set to be the same (10 teeth). Therefore, the position of the gear 73 is set regardless of whether the cassette is inserted, that is,
Regardless of the number of teeth of the ratchet wheel sent from the start position, it is in the position of FIG. 8i. Next, the aforementioned motor M2 Regardless of the number of teeth of the ratchet wheel sent from the start position, it is in the position of FIG. 8i. Next, the preferably motor M2
When the rotation of the screw gear 68 is received by the operation of When the rotation of the screw gear 68 is received by the operation of
72 starts to rotate in the direction of arrow M, engages with the gear 73 at the position shown in FIG. 8i, and continues to rotate through the position of ii to rotate by a predetermined angle. In the embodiment of the present invention, the screw gear from the motor M2 is rotated by 120 °, that is, one tooth with the remaining teeth by the photographing operation of one screen. 72 starts to rotate in the direction of arrow M, engages with the gear 73 at the position shown in FIG. 8i, and continues to rotate through the position of ii to rotate by a predetermined angle. In the embodiment of the present invention, the screw gear from the motor M2 is rotated by 120 °, that is, one tooth with the remaining teeth by the reproducing operation of one screen.
The number of gear teeth up to 68 and 71 is set. Accordingly, the tooth 72 rotates from the position shown in FIG. 8iii to the position ', but the gear 72 is disengaged at an intermediate position. The tooth 73 is about 45 from the original position in the direction of the arrow N. The number of gear teeth up to 68 and 71 is set. Accordingly, the tooth 72 rotates from the position shown in FIG. 8iii to the position', but the gear 72 is disengaged at an intermediate position. The tooth 73 is about 45 from the original position in the direction of the arrow N.
° When it rotates but loses engagement with gear 72, the spring ° When it rotates but loses engagement with gear 72, the spring
It rotates in the direction opposite to the arrow N by the force of 76. At this time, if a cassette is inserted in the camera, the ratchet wheel 78 It rotates in the direction opposite to the arrow N by the force of 76. At this time, if a cassette is inserted in the camera, the ratchet wheel 78
Is rotated slightly backward beyond one tooth (36 °) and engages with the locking claw 79 by the force of the spring 80 to rotate by one tooth of the gear 73 and the ratchet wheel 78. Position Is rotated slightly backward beyond one tooth (36 °) and engages with the locking claw 79 by the force of the spring 80 to rotate by one tooth of the gear 73 and the ratchet wheel 78. Position
Stop at With this, the feed operation for one screen is completed, and the state is restored. Therefore, the lead screw Stop at With this, the feed operation for one screen is completed, and the state is restored. Therefore, the lead screw
77 is rotated by 1/10 rotation (36 °), and the magnetic recording head is moved by 1/10 of the lead pitch of the lead screw 77 (for example, 100 μ when the lead pitch is 1 mm), and this is the pitch of the recording track. It will be short. If the cassette is not inserted at the time of the above operation, or if the cassette is taken out after photographing a predetermined number of frames, the engagement between the ratchet wheel 78 and the locking claw 79 is released as described above. The support member 86 of the magnetic recording head 30 is generated by the force of the spring 76. 77 is rotated by 1/10 rotation (36 °), and the magnetic recording head is moved by 1/10 of the lead pitch of the lead screw 77 (for example, 100 μ when the lead pitch is 1 mm), and this Is the pitch of the recording track. It will be short. If the cassette is not inserted at the time of the above operation, or if the cassette is taken out after rotating a predetermined number of frames, the engagement between the ratchet wheel 78 and The locking claw 79 is released as described above. The support member 86 of the magnetic recording head 30 is generated by the force of the spring 76.
Is returned to the starting position. Reference numeral 88 denotes a limit pin for restricting the start position when the support member returns to the start position, and is attached to the support board 19 of the camera body so as to be adjustable. S3 is an electrical contact that abuts on one end of the release lever 82 and interlocks with the operation of the detection pin 83 based on the presence or absence of cassette insertion. When the cassette is not inserted, the release lever 82 turns clockwise (arrow 0). This is for returning the numerical value of the above-mentioned frame number counter display to 0 according to the movement. With this configuration, the magnetic recording head returns to the start position and the counter display becomes 0 by taking out the cassette regardless of the number of frames to be photographed. Is returned to the starting position. Reference identifier 880035 a limit pin for restricting the start position when the support member returns to the start position, and is attached to the support board 19 of the camera body so as to be adjustable. S3 is an electrical contact that abuts on one end of the release lever 82 and interlocks with the operation of the detection pin 83 based on the presence or absence of cassette insertion. When the cassette is not inserted, the release lever 82 turns clockwise (arrow 0). This is for returning the numerical value of the above-mentioned frame number counter display to 0 according to the movement. With this configuration, the magnetic recording head returns to the start position and the counter display becomes 0 by taking out the cassette regardless of the number of frames to be photographed.
In an electronic still camera in which video signals are sequentially recorded on a plurality of recording tracks of a disk-shaped magnetic recording medium as in the apparatus of the present invention, the mechanism for switching the recording tracks by moving the magnetic head is simply one. It becomes more useful by not only moving the track position by a predetermined amount (for example, one track) each time the screen is shot, but also making it possible to cope with the exchange use of a plurality of magnetic sheet cassettes. In an electronic still camera in which video signals are sequentially recorded on a plurality of recording tracks of a disk-shaped magnetic recording medium as in the apparatus of the present invention, the mechanism for switching the recording tracks by moving the magnetic head is simply one It becomes more useful by not only moving the track position by a predetermined amount (for example, one track) each time the screen is shot, but also making it possible to cope with the exchange use of a plurality of magnetic sheet cassettes.

【0011】したがって磁気ヘッドの移動機構は、一画
面の撮影動作ごとに、1トラックずつヘッド送りを行な
うと同時に、カセットの交換に応じて全記録トラックの
うちスタート位置にもどしてそこから再び記録を行なう
よう構成することが有効である。一方、モーター駆動に
て磁気ヘッドの移動を行ない、かつ同一のモーターにて
カメラの露光に関する諸機構(クイックリターンミラー
機構、自動絞り機構、シャッターチャージ機構、オート
フォーカス機構等)を駆動する場合には、従来のスチル
カメラにモーターを内容した形式に単に周知の磁気ディ
スク装置のヘッド移動機構を同一のモーターで行なうよ
うにつけ加えただけでは、上記のカセット交換の際のヘ
ッドのスタート位置への復帰を行なうには、カメラの各
機構の駆動部との連動もあり非常に複雑なものとなって
しまう。またモーターにてヘッド移動機構を逆に動作さ
せるのであるとヘッドの復帰にも時間を要し速写性を損
なう欠点を有する。そこで本発明においては、磁気ヘッ
ドの移動機構を、カメラの各機構の駆動用モーターによ
る駆動を、順方向のみの送りとすると同時に、一画面分
の移動が完了するごとに、モーターとヘッド移動機構の
係合を断つよう構成したので任意の駒数のトラック位置
からヘッドをスタート位置に復帰できるようになった。
さらに、ヘッド支持部材をスタート位置方向へ付勢するばねによって復帰させるので、カッセット交換のヘッドの復帰も迅速に行なえる利点も有する。 Further, since the head support member is returned by the spring urging in the start position direction, there is an advantage that the head for replacing the cassette can be returned quickly. このばねはヘッド移動機構のガタによる位置のばらつきを押えて精度の高いヘッド送りを達成する効果も有するものである。 This spring also has the effect of suppressing the variation in position due to the backlash of the head moving mechanism and achieving highly accurate head feed. 以上本発明に示すようなヘッド移動機構を用いることにより、カメラの各機構部とヘッド移動機構の両者を単一のモーターにて移動することが可能となり、電子記録式スチルカメラを小型に、かつ低コストで製作することができる。 As described above, by using the head moving mechanism as shown in the present invention, both the mechanical parts of the camera and the head moving mechanism can be moved by a single motor, and the electronic recording type still camera can be made compact and compact. It can be manufactured at low cost. Therefore, the moving mechanism of the magnetic head moves the head one track at a time for each shooting operation of one screen, and returns to the start position of all the recording tracks in accordance with the exchange of the cassette, and starts recording again from there. It is effective to configure it to do so. On the other hand, when the magnetic head is moved by the motor drive and various mechanisms related to the exposure of the camera (quick return mirror mechanism, automatic aperture mechanism, shutter charge mechanism, auto focus mechanism, etc.) are driven by the same motor. By simply adding the head moving mechanism of a well-known magnetic disk drive to the same motor as the conventional still camera with a motor, it is possible to return the head to the start position at the time of cassette replacement described above. In order to do so, there is interlocking with the drive units of each mechanism of the camera, which is very complicated. In addition, if the head Therefore, the moving mechanism of the magnetic head moves the head one track at a time for each shooting operation of one screen, and returns to the start position of all the recording tracks in accordance with the exchange of the cassette, and starts recording again from There. It is effective to configure it to do so. On the other hand, when the magnetic head is moved by the motor drive and various mechanisms related to the exposure of the camera (quick return mirror mechanism, automatic aperture mechanism, shutter charge mechanism) , auto focus mechanism, etc.) are driven by the same motor. By simply adding the head moving mechanism of a well-known magnetic disk drive to the same motor as the conventional still camera with a motor, it is possible to return the head In order to do so, there is interlocking with the drive units of each mechanism of the camera, which is very complicated. In addition, if the head. to the start position at the time of cassette replacement described above. moving mechanism is operated in reverse by the motor, it takes a long time to return the head, which has the disadvantage of impairing the quick shooting performance. Therefore, in the present invention, the moving mechanism of the magnetic head is driven by the driving motor of each mechanism of the camera in the forward direction only, and at the same time, when the movement of one screen is completed, the motor and the head moving mechanism are moved. As a result, the head can be returned to the start position from an arbitrary number of track positions. moving mechanism is operated in reverse by the motor, it takes a long time to return the head, which has the disadvantage of impairing the quick shooting performance. Therefore, in the present invention, the moving mechanism of the magnetic head is driven by the driving motor of each mechanism of the camera in the forward direction only, and at the same time, when the movement of one screen is completed, the motor and the head moving mechanism are moved. As a result, the head can be returned to the start position from an arbitrary number of track positions.
Further, since the head supporting member is returned by the spring for urging in the direction of the start position, there is an advantage that the head for the replacement of the cassette can be quickly returned. This spring also has the effect of suppressing positional variations due to backlash of the head moving mechanism and achieving highly accurate head feed. As described above, by using the head moving mechanism as shown in the present invention, it is possible to move each of the mechanical parts of the camera and the head moving mechanism with a single motor, and to reduce the size of the electronic recording still camera, and It can be manufactured at low cost. Further, since the head supporting member is returned by the spring for urging in the direction of the start position, there is an advantage that the head for the replacement of the cassette can be quickly returned. This spring also has the effect of suppressing positional variations. Due to backlash of the head moving mechanism and achieving highly accurate head feed. As described above, by using the head moving mechanism as shown in the present invention, it is possible to move each of the mechanical parts of the camera and the head moving mechanism with a single motor, and to reduce the size of the electronic recording still camera, and It can be manufactured at low cost.

【0012】次に、レリーズ釦およびモード切換リング部について図9及び図6によって説明する。図9は図6
におけるモード切換リングとレリーズ釦との関係を詳細に示す斜視図である。 It is a perspective view which shows in detail the relationship between a mode switching ring and a release button in. 図9において、95はモード切換リング7のクリックバネであり、リング7にはモード切換スイッチを構成する摺動ブラシ94aが固定されている。 In FIG. 9, reference numeral 95 denotes a click spring of the mode changeover ring 7, and a sliding brush 94a constituting the mode changeover switch is fixed to the ring 7.
図9に示す状態ではモード切換リング7は一駒撮影モードに設定されておりモード切換リング7を反時計方向に回すとブラシ94aは切換スイッチ基板94b上を摺動し連続駒撮影モードに切換えられる。 In the state shown in FIG. 9, the mode switching ring 7 is set to the one-frame shooting mode, and when the mode switching ring 7 is turned counterclockwise, the brush 94a slides on the changeover switch board 94b and is switched to the continuous frame shooting mode. .. 逆に、図の状態からモード切換リング7を時計方向に回動して(OFF)位置にすると、リングの下側突起7aが軸92に回動可能に支持されている切換レバー91の一端91aと係合し、前記切換レバー91を反時計方向に回動する。 On the contrary, when the mode switching ring 7 is rotated clockwise to the (OFF) position from the state shown in the figure, one end 91a of the switching lever 91 in which the lower protrusion 7a of the ring is rotatably supported by the shaft 92. Engage with and rotate the switching lever 91 counterclockwise. それによって、切換レバーの他の一端の91bが、レリーズ釦6の下側切欠部6 As a result, 91b at the other end of the switching lever is placed in the lower notch 6 of the release button 6.
aに進入しレリーズ釦6の所定ストロークの押下げを阻止する。 It enters a and prevents the release button 6 from being pushed down by a predetermined stroke. さらに切換レバーのもう1つの端部に付設されたピン90が図 3に示す位置からカセットホルダ23をごくわずか、磁気ディスク20と記録ヘッド30の接触を離す方向に移動する。 Further, the pin 90 attached to the other end of the switching lever moves the cassette holder 23 from the position shown in FIG. 3 in the direction of separating the contact between the magnetic disk 20 and the recording head 30. したがってモード切換リング7を(OF Therefore, the mode switching ring 7 (OF)
F)位置に設定することにより、レリーズ釦の押下げをロックして不用意なレリーズ釦6の押込みによる撮影の失敗や電力の消費を防ぐだけでなく、カメラ内に円盤形磁気記録媒体を挿入したまま長期間使用しないで放置する場合などに、磁気記録ヘッドと磁気ディスクの吸着及び特に記録媒体が可撓性のシートである場合に該シートの変形をなくして記録の劣化や失敗を防ぐことができる。 By setting it to the F) position, not only is the release button pressed down locked to prevent shooting failures and power consumption due to inadvertent pressing of the release button 6, but also a disk-shaped magnetic recording medium is inserted into the camera. To prevent deterioration or failure of recording by eliminating the deformation of the magnetic recording head and the magnetic disk and especially when the recording medium is a flexible sheet, such as when the magnetic recording head and the magnetic disk are left unused for a long period of time. Can be done. Next, the release button and the mode switching ring will be described with reference to FIGS. FIG. 9 shows FIG. Next, the release button and the mode switching ring will be described with reference to FIGS. FIG. 9 shows FIG.
FIG. 5 is a perspective view showing in detail a relationship between a mode switching ring and a release button in FIG. In FIG. 9, reference numeral 95 denotes a click spring of the mode switching ring 7, to which a sliding brush 94a constituting a mode switching switch is fixed. FIG. 5 is a perspective view showing in detail a relationship between a mode switching ring and a release button in FIG. In FIG. 9, reference numeral 95 Then a click spring of the mode switching ring 7, to which a sliding brush 94a simply a mode switching switch is fixed.
In the state shown in FIG. 9, the mode switching ring 7 is set to the single frame photographing mode, and when the mode switching ring 7 is turned counterclockwise, the brush 94a slides on the switch board 94b and is switched to the continuous frame photographing mode. . Conversely, when the mode switching ring 7 is rotated clockwise from the state shown in the figure to the (OFF) position, one end 91a of the switching lever 91 whose lower projection 7a is rotatably supported on the shaft 92. To rotate the switching lever 91 counterclockwise. As a result, the other end 91b of the switching lever is connected to the lower cutout 6 of the release button 6. In the state shown in FIG. 9, the mode switching ring 7 is set to the single frame switching mode, and when the mode switching ring 7 is turned counterclockwise, the brush 94a slides on the switch board 94b and is switched to the continuous frame charging mode. .. brushing, when the mode switching ring 7 is rotated clockwise from the state shown in the figure to the (OFF) position, one end 91a of the switching lever 91 whose lower projection 7a is rotatably supported on the shaft 92. To rotate the switching lever 91 counterclockwise. As a result, the other end 91b of the switching lever is connected to the lower cutout 6 of the release button 6.
a, and the depression of the release button 6 by a predetermined stroke is prevented. Further, a pin 90 attached to the other end of the switching lever moves the cassette holder 23 very slightly from the position shown in FIG. 3 in a direction of separating the magnetic disk 20 from the recording head 30. Therefore, the mode switching ring 7 is set to (OF a, and the depression of the release button 6 by a predetermined stroke is prevented. Further, a pin 90 attached to the other end of the switching lever moves the cassette holder 23 very slightly from the position shown in FIG. 3 in a direction of separating the magnetic disk 20 from the recording head 30. Therefore, the mode switching ring 7 is set to (OF
By setting to the F) position, not only can the release of the release button be locked to prevent inadvertent pressing of the release button 6 to prevent shooting failure and power consumption, but also insert a disk-shaped magnetic recording medium into the camera. In order to prevent the deterioration and failure of recording by adsorbing the magnetic recording head and the magnetic disk, especially when the recording medium is a flexible sheet, when the recording medium is a flexible sheet when left unused without being used for a long time. Can be. By setting to the F) position, not only can the release of the release button be locked to prevent inadvertent pressing of the release button 6 to prevent shooting failure and power consumption, but also insert a disk-shaped magnetic recording medium into the camera. In order to prevent the deterioration and failure of recording by adsorbing the magnetic recording head and the magnetic disk, especially when the recording medium is a flexible sheet, when the recording medium is a flexible sheet when left unused without being used for a long time. Can be.

【0013】尚この時、ピン90がカセットホルダ23を押
してカセット20を移動させる量は、僅かなものでカセッ
トの有無を判別する検知ピン83および係止解除レバー82
とスイッチS3に対して、影響が出ないよう設定されている。 And switch S3 are set so that there is no effect. 93はレバー91の復帰のためのばねでありSモード、Cモードに設定時に切換レバー91を非作動位置に保持する。 Reference numeral 93 denotes a spring for returning the lever 91, which holds the switching lever 91 in the non-operating position when the S mode and the C mode are set. モード切換リング7をS(一駒撮影)モードおよびC(連続駒撮影)モードに設定して通常の撮影を行なう場合には、図6に示すようにレリーズ釦6の押し下げに連動してスライドレバー96がばね97に抗して下方向に移動する。 When the mode switching ring 7 is set to S (single frame shooting) mode and C (continuous frame shooting) mode for normal shooting, as shown in FIG. 6, the slide lever is linked to the pressing of the release button 6. 96 moves downward against spring 97. このとき、所定のレリーズストロークの半ばでレバー96に付設されたピン96aがまず、レディスイッチS4を閉成し、さらにレリーズ釦6を押し込むことによりピン96bがレリーズスイッチS5を閉成する。 At this time, the pin 96a attached to the lever 96 first closes the ready switch S4 at the middle of the predetermined release stroke, and then the pin 96b closes the release switch S5 by further pushing the release button 6. レディスイッチS4は、撮影動作に入る前に、カメラの露出計回路およびファインダー内表示回路を動作させ、さらにモーターM1による磁気ディスクの予備回転を行なうためのものであり、レリーズスイッチS5の閉成によって、カメラの撮影シーケンスがスタートさせられモーターM2の電源の投入などが行なわれる。 The ready switch S4 is for operating the exposure meter circuit of the camera and the display circuit in the viewfinder before starting the shooting operation, and further performing the preliminary rotation of the magnetic disk by the motor M1. By closing the release switch S5. , The shooting sequence of the camera is started, and the power of the motor M2 is turned on. At this time, the amount by which the pin 90 pushes the cassette holder 23 to move the cassette 20 is small, and the detection pin 83 and the lock release lever 82 for determining the presence or absence of the cassette are small. At this time, the amount by which the pin 90 pushes the cassette holder 23 to move the cassette 20 is small, and the detection pin 83 and the lock release lever 82 for determining the presence or absence of the cassette are small.
And the switch S3 are set so as not to be affected. A spring 93 for returning the lever 91 holds the switching lever 91 at the non-operation position when the mode is set to the S mode or the C mode. When the mode switching ring 7 is set to the S (single frame shooting) mode or the C (continuous frame shooting) mode to perform normal shooting, as shown in FIG. 96 moves downward against spring 97. At this time, the pin 96a attached to the lever 96 first closes the ready switch S4 in the middle of the predetermined release stroke, and further depresses the release button 6, whereby the pin 96b closes the release switch S5. The ready switch S4 activates the exposure meter circuit and the display circuit in the viewfinder of the camera before the photographing operation starts, and further performs preliminary rotation of the magnetic disk by the motor M1. Then, the shooting sequence of the camera is started, and the power of the motor M2 is turned on. And the switch S3 are set so as not to be affected. A spring 93 for returning the lever 91 holds the switching lever 91 at the non-operation position when the mode is set to the S mode or the C mode. When the mode switching ring 7 is set to the S (single frame shooting) mode or the C (continuous frame shooting) mode to perform normal shooting, as shown in FIG. 96 moves downward against spring 97. At this time, the pin 96a attached to the lever 96 first closes the ready switch S4 in the middle of the predetermined release stroke, and further depresses the release button 6, respectively the pin 96b closes the release switch S5. The ready switch S4 activates the exposure meter circuit and the display circuit in the viewfinder Of the camera before the cameras operation starts, and further performs preliminary rotation of the magnetic disk by the motor M1. Then, the shooting sequence of the camera is started, and the power of the motor M2 is turned on.

【0014】S6は、前述の記録・非記録切換スイッチ
9に連動する接点であり、S6が開成されると磁気ヘッ
ド30から磁気ディスク20への記録回路が不作動となる。
98は切換スイッチ9のクリックばねである。 Reference numeral 98 denotes a click spring of the changeover switch 9. さて、それでは次に、以上に説明した構成に適用されるシーケンス制御系について以下の図を参照して説明する。 Next, the sequence control system applied to the configuration described above will be described with reference to the following figures. 図10は本発明の実施例の動作タイムチャートで、図11は磁気ディスクの回転変動を検出する記録可否信号発生回路ブロックを、図12は主要機構のシーケンス制御回路ブロックをそれぞれ示すものである。 FIG. 10 is an operation time chart of an embodiment of the present invention, FIG. 11 shows a recordability signal generation circuit block for detecting rotational fluctuation of a magnetic disk, and FIG. 12 shows a sequence control circuit block of a main mechanism. 本発明のように磁気ディスクを定速回転してトラックの1周に1フィールド分あるいは1フレーム分の画像信号を記録するような装置においては静止画像の撮影を行い撮像素子から磁気ディスクに記録する際記録用ディスクは常に安定回転をしていなくてはならない、それ故、携帯使用される本装置の様な場合にはシャッターレリーズ釦の半押しによりレディスイッチS4がONとなり電源投入された直後モーターM1により磁気ディスクが定速で回転するまでの間のみ記録不可能であるという信号を出していただけでは不充分であり、例えば流し撮りや走行中の車中等で撮影を行った場合には振動が大きな外乱となって仮令1画面記録という短い期間内においてもモーターM1による回転速度の変動が許容値を越える場合が起こり得る。 In a device such as the present invention in which a magnetic disk is rotated at a constant speed to record an image signal for one field or one frame per circumference of a track, a still image is taken and recorded on the magnetic disk from an image sensor. The recording disk must always rotate stably. Therefore, in the case of this device used in a portable manner, the ready switch S4 is turned on by half-pressing the shutter release button, and the motor immediately after the power is turned on. It is not enough to just give a signal that recording is not possible until the magnetic disk rotates at a constant speed by M1, for example, when taking a panning shot or shooting in a moving car, vibration will occur. Even within a short period of recording on one screen of the provisional order due to a large disturbance, the fluctuation of the rotation speed by the motor M1 may exceed the permissible value. 図11に示したブロック図はその様な際にも回転の変動を検出する回路である。 The block diagram shown in FIG. 11 is a circuit that detects fluctuations in rotation even in such a case. 以下、図11に示されている2つのジッタ測定回路の役割りについて説明する。 Hereinafter, the roles of the two jitter measurement circuits shown in FIG. 11 will be described. まず1フィールド毎ジッタ測定回路においては例えばモーターM1の始動時の如くディスク駆動軸25の回転が未だ定速に達する以前でジッタ量が1フィールド全体に渡って大きな位相誤差のある期間あるいは1フィールド内のある期間までジッタ量を計測し、それを積算していった結果位相誤差が許容値を越えた場合に記録不可信号を発生するもので、この回路を実現するには例えば、ディスクの回転用モーターM1 First, in the jitter measurement circuit for each field, for example, when the motor M1 is started, the amount of jitter is in a period with a large phase error over the entire field or within one field before the rotation of the disk drive shaft 25 reaches a constant speed. The amount of jitter is measured up to a certain period of time, and as a result of integrating it, a non-recordable signal is generated when the phase error exceeds the permissible value. To realize this circuit, for example, for disk rotation. Motor M1
の回転に基いて複数のパルスを発生するパルス発生器89 Pulse generator 89 that generates multiple pulses based on the rotation of
の発生するFG(Frequency Generator)信号とカメラに内蔵された同期信号発生回路 120から得られるFG信号と略々周波数の等しい周期信号202 との位相を比較して、両者の位相差をクロックパルス発生器101 から得られる充分周波数の高いクロックを用いてこのクロックの周波数の精度で、位相差をジッタ量として検出するもので、この検出されたクロックを1フィールド毎ジッタ測定回路によって1フィールドに渡って連続してカウントしていき、このカウント数が予じめ決められた数を越えたならジッタが大き過ぎるということで記録可否信号 206をNO The FG (Frequency Generator) signal generated by the clock and the FG signal obtained from the synchronization signal generation circuit 120 built into the camera and the periodic signal 202 with approximately the same frequency are compared, and the phase difference between the two is generated as a clock pulse. A clock with a sufficiently high frequency obtained from the device 101 is used to detect the phase difference as the amount of jitter with the accuracy of the frequency of this clock, and the detected clock is crossed over one field by the jitter measurement circuit for each field. It counts continuously, and if this count exceeds a predetermined number, the jitter is too large and the recordability signal 206 is NO.
として出力するという構成とし、さらにこの1フィールド毎ジッタ測定回路 102は1フィールドの開始直後にリセットすることにより1フィールド毎のジッタの大きさを測定することが可能となる。 Further, the jitter measurement circuit 102 for each field can measure the magnitude of jitter for each field by resetting immediately after the start of one field. S6 is a contact point linked to the above-mentioned recording / non-recording changeover switch 9, and when S6 is opened, the recording circuit from the magnetic head 30 to the magnetic disk 20 becomes inactive. S6 is a contact point linked to the above-mentioned recording / non-recording changeover switch 9, and when S6 is opened, the recording circuit from the magnetic head 30 to the magnetic disk 20 becomes inactive.
Reference numeral 98 denotes a click spring of the changeover switch 9. Now, a sequence control system applied to the above-described configuration will be described with reference to the following drawings. FIG. 10 is an operation time chart of the embodiment of the present invention. FIG. 11 shows a recording enable / disable signal generating circuit block for detecting rotation fluctuation of a magnetic disk, and FIG. 12 shows a sequence control circuit block of a main mechanism. In an apparatus such as the present invention in which a magnetic disk is rotated at a constant speed and an image signal for one field or one frame is recorded in one round of a track, a still image is photographed and recorded on the magnetic disk from an image sensor. The recording disk must always rotate stably. Therefore, in the case of a portable device such as this one, the ready switch S4 is turned on by half-pressing the shutter release button and the motor immediately after the power is turned on Reference numeral 98 tetrahydrofuran a click spring of the changeover switch 9. Now, a sequence control system applied to the above-described configuration will be described with reference to the following drawings. FIG. 10 is an operation time chart of the embodiment of the present invention. FIG. 11 shows a recording enable / disable signal generating circuit block for detecting rotation fluctuation of a magnetic disk, and FIG. 12 shows a sequence control circuit block of a main mechanism. In an apparatus such as the present invention in which a magnetic disk is rotated at a constant speed and an image signal for one field or one frame is recorded in one round of a track, a still image is photographed and recorded on the magnetic disk from an image sensor. . Therefore, in the case of a portable device such as this one, the ready switch S4 is turned on by half-pressing the shutter release button and the motor immediately after the power is turned on . It is not sufficient to only output a signal indicating that recording cannot be performed until the magnetic disk rotates at a constant speed by M1. For example, when shooting is performed in a panning shot or in a running car, vibration is not generated. A large disturbance may cause the rotation speed of the motor M1 to exceed a permissible value even within a short period of one temporary screen recording. The block diagram shown in FIG. 11 is a circuit for detecting a fluctuation in rotation even in such a case. Hereinafter, the role of the two jitter measuring circuits shown in FIG. 11 will be described. First, in the jitter measurement circuit for each field, for example, when the rotation of the disk drive shaft 25 has not yet reached a constant speed, such as when the motor M1 is started, the amount of jitter is within a period having a large phase error over one field or within one field. If the phase error exceeds the allowable value as a result of measuring the amount of It is not sufficient to only output a signal indicating that recording cannot be performed until the magnetic disk rotates at a constant speed by M1. For example, when shooting is performed in a panning shot or in a running car, vibration is not generated. A large disturbance may cause the rotation speed of the motor M1 to exceed a permissible value even within a short period of one temporary screen recording. The block diagram shown in FIG. 11 is a circuit for detecting a fluctuation in rotation even in such a case . Magnetism, the role of the two jitter measuring circuits shown in FIG. 11 will be described. First, in the jitter measurement circuit for each field, for example, when the rotation of the disk drive shaft 25 has not yet reached a constant speed , such as when the motor M1 is started, the amount of jitter is within a period having a large phase error over one field or within one field. If the phase error exceeds the allowable value as a result of measuring the amount of jitter up to a certain period and integrating it, a recording disable signal is generated. Motor M1 Jitter up to a certain period and integrating it, a recording disable signal is generated. Motor M1
Pulse generator 89 that generates multiple pulses based on the rotation of Pulse generator 89 that generates multiple pulses based on the rotation of
Generator generates a clock pulse by comparing the phase between the FG signal generated by the camera and the periodic signal 202 having substantially the same frequency as the FG signal obtained from the synchronization signal generation circuit 120 built in the camera. The phase difference is detected as the amount of jitter with the accuracy of the frequency of the clock using a clock having a sufficiently high frequency obtained from the detector 101. The detected clock is detected over one field by the jitter measuring circuit for each field. Counting is continued, and if this count exceeds a predetermined number, the recording permission signal 206 is set to NO because the jitter is too large. Generator generates a clock pulse by comparing the phase between the FG signal generated by the camera and the periodic signal 202 having substantially the same frequency as the FG signal obtained from the synchronization signal generation circuit 120 built in the camera. The phase difference is detected as The amount of jitter with the accuracy of the frequency of the clock using a clock having a sufficiently high frequency obtained from the detector 101. The detected clock is detected over one field by the jitter measuring circuit for each field. Counting is continued, and if this count exceeds a predetermined number, the recording permission signal 206 is set to NO because the jitter is too large.
In addition, the jitter measurement circuit 102 for each field can measure the magnitude of the jitter for each field by resetting immediately after the start of one field. In addition, the jitter measurement circuit 102 for each field can measure the magnitude of the jitter for each field by resetting immediately after the start of one field.

【0015】次に、1フィールド内ジッタ測定回路 103
について説明する。前述した如く携帯使用される本装置
の様な場合には仮令、ディスク回転用モーターM1が定
速に達した後であっても瞬間的に大きな外乱が加わる可
能性があり、その場合にはディスク駆動軸25の1回転内
の極く短時間だけに大きな位相の飛びが表われ、この場
合には再生時に AFC等では補正しきれず、再生画面が見
苦しいものとなってしまう。それ故、1周内でのごく短
時間での位相の飛びについてもモニタしてやる必要があ
り、それを実現する回路がこれであり、1周内での回転
変動を検出する為に例えばFG出力を用いたとするとこの
FGクロックの周期を毎回測定して、一周期前の周期との時間差をジッタ量として検出してこれが許容値を越えたなら警告信号として出力される構成にすれば良い。 The cycle of the FG clock may be measured each time, the time difference from the cycle one cycle before may be detected as a jitter amount, and if this exceeds the permissible value, it may be output as a warning signal. そして前記1フィールド毎のジッタ測定回路 102の出力と1 Then, the output of the jitter measurement circuit 102 for each field and 1
フィールド内ジッタ測定回路 103の出力をOR回路 104に入力して、二種類のジッタ測定回路からの警告信号のうち、何れか一つでも出力されたならば記録不可信号を出力する記録可否検出手段を構成する。 Recordability detection means that inputs the output of the in-field jitter measurement circuit 103 to the OR circuit 104 and outputs a non-recordable signal if any one of the warning signals from the two types of jitter measurement circuits is output. To configure. また記録途中であったとしてもNOの記録可否信号が出力された場合にはトラックは移動することなく同一のトラック上を次の撮影時に再び記録させる様に構成する。 Further, even if the recording is in progress, if a NO recording enable / disable signal is output, the track is configured to be recorded again on the same track at the next shooting without moving. なお、上述したジッタの許容値は再生装置のAFC 特性によって最適値を決定すれば良い。 The optimum value of the above-mentioned jitter tolerance may be determined by the AFC characteristics of the playback device. Next, the intra-field jitter measuring circuit 103 Next, the intra-field jitter measuring circuit 103
Will be described. As described above, in the case of this apparatus which is used in a portable manner, there is a possibility that a large disturbance is momentarily applied even after the provisional command and the disk rotation motor M1 reach a constant speed. A large phase jump appears only in a very short time within one rotation of the drive shaft 25. In this case, the AFC or the like cannot completely correct the reproduction time, and the reproduction screen becomes unsightly. Therefore, it is necessary to monitor the phase jump in a very short time within one round, and this is the circuit that realizes this. For example, the FG output is used to detect the rotation fluctuation in one round. If used, this Will be described. As described above, in the case of this apparatus which is used in a portable manner, there is a possibility that a large disturbance is momentarily applied even after the provisional command and the disk rotation motor M1 reach a constant speed. large phase jump appears only in a very short time within one rotation of the drive shaft 25. In this case, the AFC or the like cannot completely correct the reproduction time, and the reproduction screen becomes unsightly. Therefore, it is necessary to monitor the Phase jump in a very short time within one round, and this is the circuit that realizes this. For example, the FG output is used to detect the rotation fluctuation in one round. If used, this
The cycle of the FG clock is measured each time, the time difference from the cycle one cycle before is detected as the amount of jitter, and if this exceeds an allowable value, a warning signal is output. Then, the output of the jitter measurement circuit 102 for each The cycle of the FG clock is measured each time, the time difference from the cycle one cycle before is detected as the amount of jitter, and if this exceeds an allowable value, a warning signal is output. Then, the output of the jitter measurement circuit 102 for each
Recording enable / disable detecting means for inputting the output of the in-field jitter measuring circuit 103 to the OR circuit 104 and outputting a recording-disabled signal if any one of the two types of warning signals from the jitter measuring circuit is output. Is configured. Also, even if the recording is in progress, if the recording enable / disable signal of NO is output, the track is not moved and the same track is recorded again at the next photographing. It should be noted that the above-mentioned allowable value of the jitter may be determined optimally according to the AFC characteristics of the reproducing apparatus. Recording enable / disable detecting means for inputting the output of the in-field jitter measuring circuit 103 to the OR circuit 104 and outputting a recording-disabled signal if any one of the two types of warning signals from the jitter measuring circuit is output. Is configured. Also, even if the recording is in progress, if the recording enable / disable signal of NO is output, the track is not moved and the same track is recorded again at the next measuring. It should be noted that the above-mentioned Allowably value of the jitter may be determined optimally according to the AFC characteristics of the reproducing apparatus.

【0016】又、上述した二種類のジッタ測定回路は必
ずしも両方必要なわけではなく、ジッタを生じる原因に
よって何れか一方のみの測定回路で充分な場合も考えら
れる。次に図10と図12とを参照して本発明の実施例にお
ける動作シーケンスの概略を説明する。通常の撮影記録
を行なう場合には記録・非記録切換スイッチ9は記録
((Rec) 位置に設定されS6はONとなる。まずレリーズ
釦6に連動するレディスイッチ(SW)S4がONとなり、
レリーズ、レディ信号発生回路116 より磁気記録系(以
下単に記録系と称す)にディスク回転スタート信号 204
が伝達されモーターM1によりディスクの回転が開始される。 Is transmitted and the rotation of the disc is started by the motor M1. 前述のようにディスクの回転が定速になり記録ができるようになるまで記録可否信号 206がYes にならないのでレリーズ釦6を押してそれに連動するレリーズSW As described above, the recordability signal 206 does not become Yes until the disk rotation becomes constant speed and recording becomes possible, so press the release button 6 and the release switch linked to it.
(S5)をONしてもレリーズレディ信号発生回路 116よりレリーズ信号 208は発生しない。 Even if (S5) is turned ON, the release signal 208 is not generated from the release ready signal generation circuit 116. 記録可否信号 206がRecordability signal 206
Yesを発生した後、レリーズSW(S5)をONすることにより、レリーズレディ信号発生回路 116がレリーズ信号By turning on the release switch (S5) after generating Yes, the release ready signal generation circuit 116 releases the release signal.
208を発生する。 Generate 208. レリーズ信号 208が発生するとモーター駆動タイミング制御回路 119がモーター駆動回路 121 When the release signal 208 is generated, the motor drive timing control circuit 119 becomes the motor drive circuit 121.
を指令してモーターM2を回転させる。 Is commanded to rotate the motor M2. モーター回転方向制御回路 122はこの時モーターM2を反時計方向に回転するような信号を発生している。 At this time, the motor rotation direction control circuit 122 generates a signal for rotating the motor M2 in the counterclockwise direction. 前述の如くモーターM2の駆動によってミラーが上昇を始め、ミラーSW(S As mentioned above, the mirror starts to rise due to the drive of the motor M2, and the mirror SW (S)
2)がOFF 、ミラー位相SW44がONする。 2) is OFF and the mirror phase SW44 is ON. ミラーSW(S2) Mirror SW (S2)
はレンズ1から絞り値信号、受光素子 100より輝度情報を受けた測光演算制御回路 108の測定値をメモリーするための信号を発生する。 Generates an aperture value signal from the lens 1 and a signal for storing the measured value of the photometric calculation control circuit 108 that receives the luminance information from the light receiving element 100. また、ミラーSW(S2)のON、 Also, turn on the mirror SW (S2),
OFF 信号は撮影駒数カウンタ 111で計数され撮影駒数カウンター表示 112も撮影駒数の表示が行なわれる。 The OFF signal is counted by the shooting frame counter 111, and the shooting frame counter display 112 also displays the number of shooting frames. 108 108
は適正露出を演算してシャッターの後幕を制御する露出演算制御回路であるが、シャッタースピード設定回路 1 Is an exposure calculation control circuit that calculates the proper exposure and controls the rear curtain of the shutter, but the shutter speed setting circuit 1
13よりマニュアルシャッタータイムを発生することも可能である。 It is also possible to generate a manual shutter time from 13. シャッタースピード、あるいは絞り値は表示回路 114によって、ファインダー内等に表示される。 The shutter speed or aperture value is displayed in the viewfinder by the display circuit 114. ミラーが上昇を完了するとミラー位相SW44が OFFとなる。 When the mirror completes the rise, the mirror phase SW44 is turned off.
この信号に同期して、モーター駆動タイミング制御回路Motor drive timing control circuit in synchronization with this signal
119がモーターM2をストップする。 119 stops the motor M2. これによってシャッター35をいつ走行させてもよい状態になった訳であるがイメージセンサー31aはこの時点までに不要電荷の排出をしてシャッターの始動に備えなければならない。 As a result, the shutter 35 can be moved at any time, but the image sensor 31a must prepare for the start of the shutter by discharging unnecessary charges by this point. それは以下に記すように行なわれる。 It is done as described below. レリーズ信号が発生した直後の垂直同期信号に同期して CCDならばオーバーフローコントロールゲートを制御して不要電荷を排出する。 If the CCD is synchronized with the vertical synchronization signal immediately after the release signal is generated, the overflow control gate is controlled to discharge unnecessary charges. また MOS等の素子であればセンサーのクロック信号を発生して各素子をリセットしていく。 If it is an element such as MOS, the clock signal of the sensor is generated to reset each element. それらは、センサータイミング制御回路 117の出力信号に基いてイメージセンサー駆動回路 110によって行なわれる。 These are performed by the image sensor drive circuit 110 based on the output signal of the sensor timing control circuit 117. また、駆動パルスは駆動パルス発生回路 118で発生し、基本となる同期信号は 120の同期信号発生回路によって発生している。 The drive pulse is generated by the drive pulse generation circuit 118, and the basic synchronization signal is generated by 120 synchronization signal generation circuits. そしてこの不要電荷排出の状態はシャッター35が開く動作を開始する直前まで続けられる。 And this state of unnecessary charge discharge is continued until just before the shutter 35 starts the opening operation. さて、これでシャッター35はいつ開いてもよい状態になった訳である。 Now, the shutter 35 is ready to open at any time. この状態をシャッタータイミング制御回路 115が検知すると垂直同期信号に同期してシャッターを開く信号をシャッター駆動回路 109と露出演算制御回路 108、センサータイミング制御回路 117に伝える。 When this state is detected by the shutter timing control circuit 115, a signal for opening the shutter in synchronization with the vertical synchronization signal is transmitted to the shutter drive circuit 109, the exposure calculation control circuit 108, and the sensor timing control circuit 117. イメージセンサーは不要電荷排出動作を停止し、シャッターが開き始める。 The image sensor stops the unnecessary charge discharge operation, and the shutter starts to open. 露出演算制御回路 108はシャッターの開信号によりシャッターの秒時をカウントし始める。 The exposure calculation control circuit 108 starts counting the seconds of the shutter when the shutter is opened. そして、イメージセンサーは完全に露光状態となる。 Then, the image sensor is completely exposed. 露出演算制御回路 108が適正露出を与えるシャッタータイムを演算し、 The exposure calculation control circuit 108 calculates the shutter time that gives the proper exposure.
又はシャッタースピード設定回路で設定されたマニュアルシャッタータイムで後幕スタート信号をシャッター駆動回路 109に伝達する。 Alternatively, the rear curtain start signal is transmitted to the shutter drive circuit 109 at the manual shutter time set by the shutter speed setting circuit. 後幕がスタートし、走行が完了すると同時に後幕信号が出て露出終了をモーター回転方向制御回路 122記録制御信号発生回路 123の回路ブロックに伝える。 As soon as the rear curtain starts and the running is completed, a rear curtain signal is output to notify the circuit block of the motor rotation direction control circuit 122 recording control signal generation circuit 123 that the exposure has ended. モーターM2回転方向制御回路 122は後幕信号発生直後の同期信号によってモーターM2を時計方向に駆動する様にモーター駆動回路 121に信号を出力する。 The motor M2 rotation direction control circuit 122 outputs a signal to the motor drive circuit 121 so as to drive the motor M2 clockwise by the synchronization signal immediately after the rear curtain signal is generated. 更に記録制御信号発生回路 123は後幕信号を受け取ると次の同期信号に同期してイメージセンサー内の信号電荷を出力させるのであるが、シャッターの後幕の停止する時のエネルギーがカメラボディ本体に振動となって伝わり、記録系が乱れて記録不可能のような状態になった場合には記録可否信号 206がNOを発生しているので信号電荷を発生せずイメージセンサー内に保持しておく。 Furthermore, when the recording control signal generation circuit 123 receives the rear curtain signal, it outputs the signal charge in the image sensor in synchronization with the next synchronization signal, but the energy when the rear curtain of the shutter is stopped is transmitted to the camera body body. When it is transmitted as vibration and the recording system is disturbed and it becomes impossible to record, the recordability signal 206 generates NO, so the signal charge is not generated and it is held in the image sensor. ..
振動が影響を与えないような状態になると 206が Yesとなり次の同期信号に同期してセンサータイミング制御回路 117、センサー駆動回路110を動作させ信号電荷を出力する。 When the vibration does not affect the state, 206 becomes Yes and the sensor timing control circuit 117 and the sensor drive circuit 110 are operated in synchronization with the next synchronization signal to output the signal charge. イメージセンサーを出た信号はプリアンプ105 The signal from the image sensor is the preamplifier 105
で増幅され、色信号分離回路 106によってR、G、Bの色信号となり、プロセス回路 170を通すと黒レベルランプ、波形整形などの処理を加えられて記録映像信号出力It is amplified by the color signal separation circuit 106 and becomes R, G, B color signals, and when it is passed through the process circuit 170, processing such as black level lamp and waveform shaping is added and the recorded video signal is output.
201となって記録系に入力される。 It becomes 201 and is input to the recording system. 記録制御信号発生回路 123からの記録制御信号 205が終了すると同時にモーターM2駆動タイミング制御回路 119の出力とモーター回転方向制御回路 122よりの回転方向信号とでモーターM2が時計方向に回転を始める。 At the same time as the recording control signal 205 from the recording control signal generation circuit 123 ends, the motor M2 starts rotating clockwise with the output of the motor M2 drive timing control circuit 119 and the rotation direction signal from the motor rotation direction control circuit 122. モーターM2はミラーの下降を開始させると同時にシャッターのチャージと磁気ヘッドのトラック移動を行なう。 The motor M2 starts lowering the mirror and at the same time charges the shutter and moves the track of the magnetic head. ミラーの下降に伴ってミラー位相SW44がONして、下降完了直前でOFF する。 The mirror phase SW44 turns ON as the mirror descends, and turns OFF just before the descent is completed.
ミラーSW(S2)も今までOFF であったがミラーの下降によってONとなる。 The mirror SW (S2) was also OFF until now, but it is turned ON by lowering the mirror. ミラーSW(S2)がONして、ミラー位相SWがONからOFF になることによってモーター駆動タイミング制御回路119がモーターの回転を停止させ、レリーズ、レディ信号発生回路 116に信号を送りレリーズ信号 208をリセットする。 When the mirror SW (S2) turns ON and the mirror phase SW turns from ON to OFF, the motor drive timing control circuit 119 stops the rotation of the motor and sends a signal to the release and ready signal generation circuits 116 to send the release signal 208. Reset. モーター回転方向制御回路 1 Motor rotation direction control circuit 1
22は後幕信号の終了とモーター回転終了の次の同期信号によって回転方向を反時計方向になるようにモーター駆動回路 121に信号を出力する状態になっている。 22 is in a state of outputting a signal to the motor drive circuit 121 so that the rotation direction is counterclockwise by the synchronization signal following the end of the trailing curtain signal and the end of the motor rotation. これによってシャッターシーケンスが終了となり、次のレリーズ信号に備えることとなる。 This completes the shutter sequence and prepares for the next release signal. The above two types of jitter measuring circuits are not necessarily both required, and it may be considered that only one of the two types of measuring circuits is sufficient depending on the cause of jitter. Next, an outline of an operation sequence in the embodiment of the present invention will be described with reference to FIG. 10 and FIG. When performing normal shooting recording, the recording / non-recording switch 9 is set to the recording ((Rec) position and S6 is turned on. First, the ready switch (SW) S4 linked to the release button 6 is turned on, The above two types of jitter measuring circuits are not necessarily both required, and it may be considered that only one of the two types of measuring circuits is sufficient depending on the cause of jitter. Next, an outline of an operation sequence in the embodiment of The present invention will be described with reference to FIG. 10 and FIG. When performing normal shooting recording, the recording / non-recording switch 9 is set to the recording ((Rec) position and S6 is turned on. First, the ready switch (SW) S4 linked to the release button 6 is turned on,
A release / ready signal generation circuit 116 sends a disk rotation start signal 204 to a magnetic recording system (hereinafter simply referred to as a recording system). A release / ready signal generation circuit 116 sends a disk rotation start signal 204 to a magnetic recording system (hereinafter simply referred to as a recording system).
Is transmitted, and the rotation of the disk is started by the motor M1. As described above, the record enable / disable signal 206 does not become "Yes" until the rotation of the disk becomes constant speed and recording can be performed. Is transmitted, and the rotation of the disk is started by the motor M1. As described above, the record enable / disable signal 206 does not become "Yes" until the rotation of the disk becomes constant speed and recording can be performed.
Even if (S5) is turned ON, the release signal 208 is not generated from the release ready signal generation circuit 116. Record enable / disable signal 206 Even if (S5) is turned ON, the release signal 208 is not generated from the release ready signal generation circuit 116. Record enable / disable signal 206
By turning on the release SW (S5) after generating Yes, the release ready signal generation circuit 116 By turning on the release SW (S5) after generating Yes, the release ready signal generation circuit 116
Generates 208. When the release signal 208 is generated, the motor drive timing control circuit 119 is driven by the motor drive circuit 121 Generates 208. When the release signal 208 is generated, the motor drive timing control circuit 119 is driven by the motor drive circuit 121
To rotate the motor M2. At this time, the motor rotation direction control circuit 122 generates a signal for rotating the motor M2 counterclockwise. As described above, the mirror starts to rise by driving the motor M2, and the mirror SW (S To rotate the motor M2. At this time, the motor rotation direction control circuit 122 generates a signal for rotating the motor M2 counterclockwise. As described above, the mirror starts to rise by driving the motor M2, and the mirror SW (S)
2) is OFF, and the mirror phase SW44 is ON. Mirror SW (S2) 2) is OFF, and the mirror phase SW44 is ON. Mirror SW (S2)
Generates a signal for storing an aperture value signal from the lens 1 and a measured value of the photometric operation control circuit 108 which receives luminance information from the light receiving element 100. Also, turning on the mirror SW (S2), Generates a signal for storing an aperture value signal from the lens 1 and a measured value of the photometric operation control circuit 108 which receives luminance information from the light receiving element 100. Also, turning on the mirror SW (S2),
The OFF signal is counted by the photographing frame number counter 111, and the photographing frame number display 112 also displays the number of photographing frames. 108 The OFF signal is counted by the reproducing frame number counter 111, and the reproducing frame number display 112 also displays the number of reproducing frames. 108
Is an exposure calculation control circuit that calculates the proper exposure and controls the rear curtain of the shutter. The shutter speed setting circuit 1 Is an exposure calculation control circuit that calculates the proper exposure and controls the rear curtain of the shutter. The shutter speed setting circuit 1
It is also possible to generate a manual shutter time from 13. The shutter speed or the aperture value is displayed in the viewfinder or the like by the display circuit 114. When the mirror completes ascending, the mirror phase SW44 is turned off. It is also possible to generate a manual shutter time from 13. The shutter speed or the aperture value is displayed in the viewfinder or the like by the display circuit 114. When the mirror completes ascending, the mirror phase SW44 is turned off.
In synchronization with this signal, the motor drive timing control circuit In synchronization with this signal, the motor drive timing control circuit
119 stops the motor M2. As a result, the shutter 35 is ready to run at any time. However, the image sensor 31a must discharge unnecessary charges by this point to prepare for the start of the shutter. It is performed as described below. If the CCD is in synchronization with the vertical synchronizing signal immediately after the release signal is generated, the CCD controls the overflow control gate to discharge unnecessary charges. In the case of an element such as a MOS, a clock signal for the sensor is generated to reset each element. These are performed by the image sensor driving circuit 110 based on the output signal of the sensor timing control circuit 117. The drive pulse is generated by a drive pulse generation circuit 118, and the basic synchronization signal is generated by a synchronization signal generation circuit 120. This state of unnecessary charge discharge is continued until immediately before the operation of opening the shutter 35 is started. Now, the shutter 35 is 119 stops the motor M2. As a result, the shutter 35 is ready to run at any time. However, the image sensor 31a must discharge unnecessary charges by this point to prepare for the start of the shutter. It is performed as described below. If the CCD is in synchronization with the vertical synchronizing signal immediately after the release signal is generated, the CCD controls the overflow control gate to discharge unnecessary charges. In the case of an element such as a MOS, a clock signal for the sensor is generated. to reset each element. These are performed by the image sensor driving circuit 110 based on the output signal of the sensor timing control circuit 117. The drive pulse is generated by a drive pulse generation circuit 118, and the basic synchronization signal is generated by a synchronization signal generation circuit 120. This state of unnecessary charge discharge is continued until immediately before the operation of opening the shutter 35 is started. Now, the shutter 35 is now ready to be opened. When this state is detected by the shutter timing control circuit 115, a signal for opening the shutter is transmitted to the shutter drive circuit 109, the exposure calculation control circuit 108, and the sensor timing control circuit 117 in synchronization with the vertical synchronization signal. The image sensor stops the unnecessary charge discharging operation, and the shutter starts to open. The exposure calculation control circuit 108 starts counting the seconds of the shutter according to the shutter open signal. Then, the image sensor is completely exposed. Exposure calculation control circuit 108 calculates the shutter time to give proper exposure, now ready to be opened. When this state is detected by the shutter timing control circuit 115, a signal for opening the shutter is transmitted to the shutter drive circuit 109, the exposure calculation control circuit 108, and the sensor timing control circuit 117 in synchronization The exposure calculation control circuit 108 starts counting the seconds of the shutter according to the shutter open signal. Then, the image sensor is completely. With the vertical synchronization signal. The image sensor stops the unnecessary charge operating operation, and the shutter starts to open. exposure. Exposure calculation control circuit 108 calculates the shutter time to give proper exposure,
Alternatively, a rear curtain start signal is transmitted to the shutter drive circuit 109 with a manual shutter time set by the shutter speed setting circuit. The trailing curtain starts and, at the same time when the running is completed, a trailing curtain signal is output to notify the circuit block of the motor rotation direction control circuit 122 and the recording control signal generation circuit 123 of the end of exposure. The motor M2 rotation direction control circuit 122 outputs a signal to the motor drive circuit 121 so as to drive the motor M2 clockwise by the synchronization signal immediately after the generation of the rear curtain signal. Further, when the recording control signal generating circuit 123 receives the rear curtain signal, it outputs the signal charges in the image sensor in synchronization with the next synchronization signal, but the energy when the rear curtain of the shutter stops is transmitted to the camera body. If it is transmitted as vibration Alternatively, a rear curtain start signal is transmitted to the shutter drive circuit 109 with a manual shutter time set by the shutter speed setting circuit. The trailing curtain starts and, at the same time when the running is completed, a trailing curtain signal is output to notify the circuit block of the motor rotation direction control circuit 122 and the recording control signal generation circuit 123 of the end of exposure. The motor M2 rotation direction control circuit 122 outputs a signal to the motor drive circuit 121 so as to drive the motor M2 clockwise by the synchronization signal immediately after the generation of the rear curtain signal. Further, when the recording control signal generating circuit 123 receives the rear curtain signal, it outputs the signal charges in the image sensor in synchronization with the next synchronization signal, but the energy when the rear curtain of the shutter stops is transmitted to the camera body. If it is transmitted as vibration and the recording system is disturbed and it becomes impossible to record, the recordable signal 206 generates NO, so no signal charge is generated and it is stored in the image sensor . and the recording system is disturbed and it becomes impossible to record, the recordable signal 206 generates NO, so no signal charge is generated and it is stored in the image sensor.
In a state where the vibration does not affect, 206 becomes Yes and the sensor timing control circuit 117 and the sensor drive circuit 110 are operated in synchronization with the next synchronization signal to output signal charges. The signal output from the image sensor is preamplifier 105 In a state where the vibration does not affect, 206 becomes Yes and the sensor timing control circuit 117 and the sensor drive circuit 110 are operated in synchronization with the next synchronization signal to output signal charges. The signal output from the image sensor is preamplifier 105
The signal is amplified by the color signal separation circuit 106 to become R, G, and B color signals. When the signal passes through the process circuit 170, processing such as a black level ramp and waveform shaping is applied to the recording video signal output. The signal is amplified by the color signal separation circuit 106 to become R, G, and B color signals. When the signal passes through the process circuit 170, processing such as a black level ramp and waveform shaping is applied to the recording video signal output. ..
201 is input to the recording system. At the same time when the recording control signal 205 from the recording control signal generating circuit 123 ends, the motor M2 starts rotating clockwise by the output of the motor M2 drive timing control circuit 119 and the rotation direction signal from the motor rotation direction control circuit 122. The motor M2 starts the lowering of the mirror and simultaneously charges the shutter and moves the track of the magnetic head. The mirror phase SW44 is turned on with the lowering of the mirror, and turned off just before the lowering is completed. 201 is input to the recording system. At the same time when the recording control signal 205 from the recording control signal generating circuit 123 ends, the motor M2 starts rotating clockwise by the output of the motor M2 drive timing control circuit 119 and the rotation direction signal from the motor rotation direction control circuit 122. The motor M2 starts the lowering of the mirror and simultaneously charges the shutter and moves the track of the magnetic head. The mirror phase SW44 is turned on with the lowering of the mirror, and turned off just before the lowering is completed.
The mirror SW (S2) has been off until now, but turns on when the mirror is lowered. When the mirror SW (S2) is turned on and the mirror phase switch is turned from on to off, the motor drive timing control circuit 119 stops the rotation of the motor, sends a signal to the release / ready signal generation circuit 116 and sends the release signal 208 Reset. Motor rotation direction control circuit 1 The mirror SW (S2) has been off until now, but turns on when the mirror is lowered. When the mirror SW (S2) is turned on and the mirror phase switch is turned from on to off, the motor drive timing control circuit 119 stops the rotation of the motor, sends a signal to the release / ready signal generation circuit 116 and sends the release signal 208 Reset. Motor rotation direction control circuit 1
Reference numeral 22 denotes a state in which a signal is output to the motor drive circuit 121 so that the rotation direction becomes counterclockwise in response to the end signal of the second curtain and the synchronization signal next to the end of motor rotation. This completes the shutter sequence, and prepares for the next release signal. Reference numeral 22 msgid a state in which a signal is output to the motor drive circuit 121 so that the rotation direction becomes counterclockwise in response to the end signal of the second curtain and the synchronization signal next to the end of motor rotation. This completes the shutter sequence, and prepares for the next release signal.

【0017】又、上述の露光完了時点でシャッターの後
幕走行のエネルギーが停止する時に、ボディに振動とな
って伝わり、あるいは他の振動が伝わり、記録系が乱れ
て記録不可能となった状態ではイメージセンサーより記
録信号出力を出力せず、記録可能状態となってから出力
すると述べたが記録系がすぐに復帰し例えば数wsから十
数ws程度で復帰し記録可能となれば、イメージセンサー
内の信号電荷は発生する暗電流によって大きく、S/N
比を落すことはないので記録開始信号を出力し記録を行う。 Since the ratio is not reduced, the recording start signal is output for recording. しかし、記録系の復帰が遅れて、例えば2フィールド分以上となった場合には、イメージセンサー内に保持されている信号電荷は暗電流によって著しくS/N比が落ちてしまう、そのため後幕信号が発生後予め設定された時間が経過すると記録制御信号 205は出力せずにモーター駆動タイミング回路 119はモーターM2を駆動してミラーの下降、シャッターチャージをして、シャッターシーケンスを完了してしまう。 However, if the recovery of the recording system is delayed and becomes, for example, two fields or more, the S / N ratio of the signal charge held in the image sensor drops significantly due to the dark current. Therefore, the trailing curtain signal When a preset time elapses after the occurrence of, the motor drive timing circuit 119 drives the motor M2 to lower the mirror and charge the shutter without outputting the recording control signal 205, and completes the shutter sequence. (なおこの場合には記録をしないのであるから記録ヘッドは送る必要がないため、ヘッド送り禁止信号 203が発生して前述の構成によって磁気ヘッドの移動は行なわれず、撮影駒数カウンター信号も発生しない。)この場合は撮影記録が行えなかったのであるから、撮影者に対して警告信号を表示する。 (In this case, since recording is not performed, it is not necessary to send the recording head. Therefore, the head feed prohibition signal 203 is generated, the magnetic head is not moved by the above configuration, and the number of shooting frames counter signal is not generated. In this case, since the shooting recording could not be performed, a warning signal is displayed to the photographer. なおディスク回転スタート信号 204でディスクが始動しディスクの回転が一定になって記録可能となるまでの間も同様に警告信号を表示してレリーズできないことを示す。 It should be noted that the disc rotation start signal 204 also displays a warning signal until the disc starts and the disc rotation becomes constant and recording becomes possible, indicating that the release cannot be performed. Further, when the energy of the rear curtain travel of the shutter is stopped at the time of completion of the above-described exposure, vibration is transmitted to the body or other vibration is transmitted, and the recording system is disturbed and recording is disabled. In the above, it was stated that the image sensor does not output the recording signal output, but outputs after the recording is ready.However, if the recording system recovers immediately, for example, it recovers from several ws to about ten and several ws and becomes recordable, the image sensor The signal charge in the inside is large due to the generated dark current, and the S / N Further, when the energy of the rear curtain travel of the shutter is stopped at the time of completion of the above-described exposure, vibration is transmitted to the body or other vibration is transmitted, and the recording system is disturbed and recording is disabled. In the above, it was stated that the image sensor does not output the recording signal output, but outputs after the recording is ready. However, if the recording system recovers immediately, for example, it recovers from several ws to about ten and several ws and becomes recordable, the image sensor The signal charge in the inside is large due to the generated dark current, and the S / N
Since the ratio does not decrease, a recording start signal is output to perform recording. However, when the recovery of the recording system is delayed, for example, when it is equal to or more than two fields, the signal charge held in the image sensor significantly lowers the S / N ratio due to the dark current. When a preset time elapses after the occurrence of the error, the recording control signal 205 is not output, and the motor drive timing circuit 119 drives the motor M2 to lower the mirror and charge the shutter, thereby completing the shutter sequence. (Because no recording is performed in this case, the recording head does not need to be sent. Therefore, the head feed inhibit signal 203 is generated, and the magnetic head is not moved by the above-described configuration, and the photographic frame number counter signal is not generated. .) In this case, since the photographing and recording could not be performed, a warning signal is displayed to the photographer. Note t Since the ratio does not decrease, a recording start signal is output to perform recording. However, when the recovery of the recording system is delayed, for example, when it is equal to or more than two fields, the signal charge held in the image sensor significantly lowers the S / N ratio due to the dark current. When a preset time elapses after the occurrence of the error, the recording control signal 205 is not output, and the motor drive timing circuit 119 drives the motor M2 to lower the mirror and charge the shutter, thereby completing the shutter sequence. (Because no recording is performed in this case, the recording head does not need to be sent. Therefore, the head feed inhibit signal 203 is generated, and the magnetic head is not moved by The above-described configuration, and the photographic frame number counter signal is not generated ..) In this case, since the recording and recording could not be performed, a warning signal is displayed to the photographer. Note t hat a warning signal is also displayed to indicate that the release cannot be performed until the disk is started by the disk rotation start signal 204 and the rotation of the disk becomes constant and recording becomes possible. hat a warning signal is also displayed to indicate that the release cannot be performed until the disk is started by the disk rotation start signal 204 and the rotation of the disk becomes constant and recording becomes possible.

【0018】さて、これまで述べてきた動作シーケンス
は通常の撮影記録を行なう場合についてのものであった
が、任意の撮影駒数に相当する位置まで磁気記録ヘッド
を移動して((すなわち空送りを行なって)その駒数に
だけまたはその駒数目以降に記録を行ないたい場合に
は、記録・非記録切換スイチ9を非記録(N.R)位置に設
定することにより可能となる。切換スイッチ9を非記録
位置に設定してS6をOFF にすると、レリーズボタンの
押圧後、記録可否信号 206のいかんに拘わらず、直ちに
レリーズ信号が 116より発生するよう記録制御信号発生
回路 123が動作する。更に、ミラー上昇とシャッターの
走行が行なわれると同様に記録可否信号 206とは無関係
に記録制御信号 205が出され記録映像信号出力 201は発
生せずにモーターM2の回転が行なわれシャッターチャ
ージ、ミラーダウン、ヘッドの移動、駒数のカウントが
行なわれる。この動作をくり返し任意の駒数まで画像の
記録を行なわずに磁気ヘッドを移動した後切換スイッチ
9を記録位置Rec にもどすことによりその時にカウンタ
ー8に表示されるから再び通常の撮影記録ができるよう
になる。
The operation sequence described above is for the case of performing normal photographing and recording. However, the magnetic recording head is moved to a position corresponding to an arbitrary number of photographing frames (ie, idle feed). If it is desired to perform recording only on the number of frames or after the number of frames, the recording / non-recording switch 9 can be set to the non-recording (NR) position. When the non-recording position is set and S6 is turned off, the recording control signal generating circuit 123 operates so that the release signal is immediately generated from the 116 after the release button is pressed, regardless of the recording enable / disable signal 206. In the same manner as when the mirror is raised and the shutter runs, the recording control signal 205 is output regardless of the recording enable / disable signal 206, and the motor M2 rotates without generating the recording video signal output 201. The shutter charge, the mirror down, the movement of the head, and the counting of the number of frames are repeated, and after the magnetic head is moved without recording an image to an arbitrary number of frames, the changeover switch 9 is moved to the recording position Rec. By returning it, it is displayed on the counter 8 at that time, so that normal photographing and recording can be performed again.

【0019】以上本発明によれば、電気的映像信号に電気的駆動手段の駆動によって発生するノイズが乗ることなく、高画質の映像を得ることができる。 As described above, according to the present invention, a high-quality image can be obtained without the noise generated by the driving of the electric driving means on the electric image signal.

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

【図1】(a) 本発明装置の一実施例を組込んだカメラ本体の外観を示す前方斜視図 (b) 同装置の上面外観図FIG. 1 (a) is a front perspective view showing the appearance of a camera body incorporating an embodiment of the apparatus of the present invention.

【図2】図1aのI−I断面視図FIG. 2 is a sectional view taken along line II of FIG. 1a.

【図3】図1bのII−II断面視図FIG. 3 is a sectional view taken along the line II-II of FIG. 1b.

【図4】主要機構部の斜視図FIG. 4 is a perspective view of a main mechanism.

【図5】(a) 図4で示す主要機構部のうちのヘッド移動機構の駆動部の他の実施例を示す斜視図 (b) 図5(a) の要部断面図5 (a) is a perspective view showing another embodiment of the drive unit of the head moving mechanism among the main mechanism parts shown in FIG. 4 (b) a sectional view of a main part of FIG. 5 (a)

【図6】図1bのIII −III 断面視図6 is a sectional view taken along the line III-III in FIG. 1b.

【図7】図6図示の磁気ヘッド移動機構の主要部斜視図FIG. 7 is a perspective view of a main part of the magnetic head moving mechanism shown in FIG. 6;

【図8】図6図示の機構の動作を図示した平面図FIG. 8 is a plan view illustrating the operation of the mechanism illustrated in FIG. 6;

【図9】図6図示のモード切換リングとレリーズ釦との関連機構を示す斜視図9 is a perspective view showing a mechanism related to a mode switching ring and a release button shown in FIG. 6;

【図10】本発明装置の主要構成要素の動作と制御回路の出力の関係を示すタイミングチャートFIG. 10 is a timing chart showing the relationship between the operation of the main components of the device of the present invention and the output of the control circuit.

【図11】本発明装置に適用可能な円盤形磁気記録媒体の回転速度制御精度検出回路のブロック図FIG. 11 is a block diagram of a rotation speed control accuracy detection circuit of a disk-shaped magnetic recording medium applicable to the apparatus of the present invention.

【図12】本発明装置の動作シーケンス制御回路のブロック図FIG. 12 is a block diagram of an operation sequence control circuit of the device of the present invention.

Claims (4)

    (57)【特許請求の範囲】(57) [Claims]
  1. 【請求項1】撮影光学系と、前記撮影光学系により形成
    された被写体像を電気的映像信号に変換する光電変換手
    段とを含む撮像系とを有する電子スチルカメラにおい
    て、 前記電子スチルカメラの撮影制御のため駆動を行う電気
    的駆動手段と、 前記光電変換手段により光電変換された前記電気的映像
    信号を撮像系から読み出し出力する出力手段と、 前記出力手段の出力と前記電気的駆動とが同時に行われ
    ることを禁止するように、前記電気的駆動手段の駆動あ
    るいは前記出力手段の出力のタイミングを制御する制御
    手段とを有することを特徴とする電子スチルカメラ。
    1. An electronic still camera, comprising: an imaging optical system; and an imaging system including a photoelectric conversion unit that converts a subject image formed by the imaging optical system into an electric video signal. An electric drive unit that performs driving for control; an output unit that reads out and outputs the electric video signal photoelectrically converted by the photoelectric conversion unit from an imaging system; and an output of the output unit and the electric drive are simultaneously performed. Control means for controlling the timing of driving the electric drive means or the output of the output means so as to prohibit the operation from being performed.
  2. 【請求項2】前記制御手段は、前記出力手段の出力が完
    了するまで、前記電気的駆動手段の駆動を禁止するよう
    制御することを特徴とする請求項1に記載の電子スチル
    カメラ。
    2. The electronic still camera according to claim 1, wherein said control means controls to prohibit driving of said electric driving means until output of said output means is completed.
  3. 【請求項3】前記制御手段は、前記電気的駆動手段の駆動が停止するまで、前記出力手段の出力を禁止するよう制御することを特徴とする請求項1に記載の電子スチルカメラ。 3. The electronic still camera according to claim 1, wherein said control means controls the output of said output means to be inhibited until the drive of said electric drive means is stopped.
  4. 【請求項4】前記制御手段は、前記出力手段の出力の完了後に発生する同期信号に同期して、前記電気的駆動手段を駆動するように制御することを特徴とする請求項2
    に記載の電子スチルカメラ。 The electronic still camera described in. 4. The apparatus according to claim 2, wherein said control means controls to drive said electric drive means in synchronization with a synchronization signal generated after the output of said output means is completed. 4. The apparatus according to claim 2, wherein said control means controls to drive said electric drive means in synchronization with a synchronization signal generated after the output of said output means is completed.
    Electronic still camera according to 1. Electronic still camera according to 1.
JP6057303A 1994-03-28 1994-03-28 Electronic still camera Expired - Lifetime JP2569450B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6057303A JP2569450B2 (en) 1994-03-28 1994-03-28 Electronic still camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6057303A JP2569450B2 (en) 1994-03-28 1994-03-28 Electronic still camera

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JPH07170476A JPH07170476A (en) 1995-07-04
JP2569450B2 true JP2569450B2 (en) 1997-01-08

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JP6057303A Expired - Lifetime JP2569450B2 (en) 1994-03-28 1994-03-28 Electronic still camera

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JP5129489B2 (en) * 2007-02-15 2013-01-30 ペンタックスリコーイメージング株式会社 Aperture driving device for interchangeable lens digital camera

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JPS5495117A (en) * 1978-01-13 1979-07-27 Toshiba Corp Automatic light-exposure type pickup unit
JPS6322117B2 (en) * 1978-04-23 1988-05-10 Canon Kk
JPS5741083A (en) * 1980-08-25 1982-03-06 Minolta Camera Co Ltd Static picture recording device
JPS5811687A (en) * 1981-07-15 1983-01-22 Mitsubishi Electric Corp Tank
JPH0377716B2 (en) * 1981-12-03 1991-12-11 Canon Kk
JPH0324836B2 (en) * 1982-03-29 1991-04-04 Copal Co Ltd
JPH0412074B2 (en) * 1982-07-07 1992-03-03 Canon Kk

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