JPS6436827U - - Google Patents
Info
- Publication number
- JPS6436827U JPS6436827U JP13146687U JP13146687U JPS6436827U JP S6436827 U JPS6436827 U JP S6436827U JP 13146687 U JP13146687 U JP 13146687U JP 13146687 U JP13146687 U JP 13146687U JP S6436827 U JPS6436827 U JP S6436827U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- cam surface
- adjustment shaft
- cam
- cam member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案に係るカメラの焦点調節装置の
一実施例を示す要部分解斜視図、第２図は距離調
定部材のカム部材側への係合状態を説明するため
の概略図である。
１……レンズ鏡筒、１ａ……撮影レンズ系（撮
影光学系）、１ｂ，１ｃ……アーム部、２，３…
…地板、４ａ，４ｂ……ガイド軸、５……カム部
材、５ａ……カム面、６，７……ギヤ部材、８…
…シヤツタ部材、１０……距離調定部材、１１…
…調整軸、１１ａ……ねじ部、１２……コイルば
ね、１３……Ｄカツト孔、１４……ナツト。
FIG. 1 is an exploded perspective view of essential parts showing an embodiment of the camera focus adjustment device according to the present invention, and FIG. 2 is a schematic diagram for explaining the engagement state of the distance adjustment member with the cam member side. be. 1...Lens barrel, 1a...Photographing lens system (photographing optical system), 1b, 1c...Arm portion, 2, 3...
...Main plate, 4a, 4b...Guide shaft, 5...Cam member, 5a...Cam surface, 6, 7...Gear member, 8...
... Shutter member, 10... Distance adjustment member, 11...
...Adjustment shaft, 11a...Threaded portion, 12...Coil spring, 13...D cut hole, 14...Nut.
Claims (1)
持されるとともにその一方向に常時付勢されてい
るレンズ鏡筒と、このレンズ鏡筒の繰出し量を制
御するように撮影光軸方向に傾斜するカム面を有
し前記レンズ鏡筒の付勢方向においてカメラ本体
側に回動可能に支持されたカム部材と、このカム
部材のカム面上に当接するように前記レンズ鏡筒
側から突設される距離調定部材を備え、この距離
調定部材は、前記レンズ鏡筒に対し撮影光軸方向
に可動可能に支持されかつ前記カム面側への突出
長さを可変調整できる調整軸と、この調整軸をカ
ム面側に突出させるように前記レンズ鏡筒側より
も大きな付勢力をもつて付勢する付勢手段とで構
成されていることを特徴とするカメラの焦点調節
装置。 A lens barrel that has a photographic optical system, is supported movably in the direction of the photographic optical axis, and is always biased in one direction; a cam member having an inclined cam surface and rotatably supported on the camera body side in the urging direction of the lens barrel; and a cam member protruding from the lens barrel side so as to abut on the cam surface of the cam member. The distance adjusting member includes an adjustment shaft that is movably supported in the photographing optical axis direction with respect to the lens barrel and that can variably adjust the length of protrusion toward the cam surface side. A focusing device for a camera, comprising: a biasing means for biasing the adjustment shaft with a larger biasing force than the lens barrel side so as to project the adjustment shaft toward the cam surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13146687U JPS6436827U (en) | 1987-08-31 | 1987-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13146687U JPS6436827U (en) | 1987-08-31 | 1987-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6436827U true JPS6436827U (en) | 1989-03-06 |
Family
ID=31387562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13146687U Pending JPS6436827U (en) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6436827U (en) |
-
1987
- 1987-08-31 JP JP13146687U patent/JPS6436827U/ja active Pending
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