JPS62184512U - - Google Patents
Info
- Publication number
- JPS62184512U JPS62184512U JP7171586U JP7171586U JPS62184512U JP S62184512 U JPS62184512 U JP S62184512U JP 7171586 U JP7171586 U JP 7171586U JP 7171586 U JP7171586 U JP 7171586U JP S62184512 U JPS62184512 U JP S62184512U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- lead
- support member
- lead groove
- lens
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第1図は本考案の合焦点装置の断面図、第2図
は第1図の要部の拡大断面図、第3図はリードカ
ムの斜視図、第4図はリードカムの取付状態を示
す平面図、第5図は第4図の―線断面図、第
6図は鏡胴のリード溝の始端部の平面図、第7図
はリードカムの他の実施例の断面図、第8図は従
来例の断面図である。
1……カメラの合焦点装置、2……レンズ、3
……鏡胴、4……鏡胴支持部材、5……リード溝
、5a,5b……リード溝の両側面、6……リー
ドカム、7……回転運動―スラスト運動変換機構
、10……スプリング。
Fig. 1 is a sectional view of the focusing device of the present invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, Fig. 3 is a perspective view of the lead cam, and Fig. 4 is a plan view showing the installation state of the lead cam. , FIG. 5 is a sectional view taken along the line -- in FIG. 4, FIG. 6 is a plan view of the starting end of the lead groove in the lens barrel, FIG. 7 is a sectional view of another embodiment of the lead cam, and FIG. 8 is a conventional example. FIG. 1...Camera focusing device, 2...Lens, 3
... Lens barrel, 4... Lens barrel support member, 5... Lead groove, 5a, 5b... Both sides of lead groove, 6... Lead cam, 7... Rotary motion-thrust motion conversion mechanism, 10... Spring .
Claims (1)
、これら鏡胴と鏡胴支持部材を、鏡胴又は鏡胴支
持部材のいずれか一方に設けたリード溝と、他方
に設けたリードカムとからなる回転運動―スラス
ト運動変換機構を介して結合し、前記鏡胴と鏡胴
支持部材とを相対回転させることにより、鏡胴を
スラスト方向に移動させるカメラの合焦点装置に
おいて、 前記鏡胴又は鏡胴支持部材のいずれか一方には
リード溝を設け、他方にはリード溝の長さ方向に
所定の間隔をもたせた状態で、該リード溝内に嵌
合する対状のリードカムを設け、これらリードカ
ムのうちの一方のリードカムをスプリングによつ
てリード溝の一側面に当接させ、他方のリードカ
ムをスプリングによつてリード溝の他側面に当接
させたことを特徴とするカメラの合焦点装置。[Claims for Utility Model Registration] A lens barrel with a lens attached is fitted into a lens barrel support member, and these lens barrels and the lens barrel support member are connected to a lead groove provided in either the lens barrel or the lens barrel support member. and a lead cam provided on the other side through a rotary movement/thrust movement conversion mechanism, and the lens barrel and the lens barrel support member are rotated relative to each other, thereby moving the lens barrel in the thrust direction. In the focusing device, either the lens barrel or the lens barrel support member is provided with a lead groove, and the other is fitted into the lead groove with a predetermined interval in the length direction of the lead groove. A pair of lead cams are provided, one of the lead cams is brought into contact with one side of the lead groove by a spring, and the other lead cam is brought into contact with the other side of the lead groove by a spring. Features camera focusing device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7171586U JPS62184512U (en) | 1986-05-13 | 1986-05-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7171586U JPS62184512U (en) | 1986-05-13 | 1986-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62184512U true JPS62184512U (en) | 1987-11-24 |
Family
ID=30914520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7171586U Pending JPS62184512U (en) | 1986-05-13 | 1986-05-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62184512U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04104611U (en) * | 1991-02-21 | 1992-09-09 | 旭精密株式会社 | Bracket removal mechanism for lead groove guide device of lens barrel |
-
1986
- 1986-05-13 JP JP7171586U patent/JPS62184512U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04104611U (en) * | 1991-02-21 | 1992-09-09 | 旭精密株式会社 | Bracket removal mechanism for lead groove guide device of lens barrel |