JPH0362326U - - Google Patents
Info
- Publication number
- JPH0362326U JPH0362326U JP12284389U JP12284389U JPH0362326U JP H0362326 U JPH0362326 U JP H0362326U JP 12284389 U JP12284389 U JP 12284389U JP 12284389 U JP12284389 U JP 12284389U JP H0362326 U JPH0362326 U JP H0362326U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- viewfinder
- axial direction
- cam surface
- magnification
- 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.)
- Granted
Links
Landscapes
- Viewfinders (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Lens Barrels (AREA)
- Lenses (AREA)
Description
第１図は本考案に係る変倍フアインダの駆動カ
ムが使用されるカメラの正面図、第２図は本考案
に係る変倍フアインダの駆動カムの斜視図、第３
図は本考案に変倍フアインダの駆動カムの平面図
、第４図は第３図のＡ−Ａ断面図である。
１０…カメラ、１２…フアインダ、１８…駆動
カム、２２…カム面、２４…保持溝、３０，３２
，３４…成形型、３６Ａ…継目、４０…ピン、４
２…撮影レンズ枠。
FIG. 1 is a front view of a camera in which the drive cam of the variable magnification viewfinder according to the present invention is used, FIG. 2 is a perspective view of the drive cam of the variable magnification viewfinder according to the present invention, and FIG.
The figure is a plan view of the driving cam of the variable magnification viewfinder according to the present invention, and FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3. DESCRIPTION OF SYMBOLS 10...Camera, 12...Finder, 18...Drive cam, 22...Cam surface, 24...Holding groove, 30, 32
, 34... Molding die, 36A... Seam, 40... Pin, 4
2...Photography lens frame.
Claims (1)
系の可動レンズがカムにより駆動されフアインダ
の倍率が変わる変倍フアインダに於いて、 前記カムには、円筒体表面に螺旋状のカム面と
、カム面の端部に撮影レンズ鏡胴の沈胴時に可動
レンズをロツクする円周方向の保持溝とが形成さ
れ、 前記カムのカム面は軸方向に抜かれるカム面用
成形型と、軸方向と直交方向に抜かれる保持溝用
成形型とで形成され、 カム面用成形型と保持溝用成形型との型割れの
継目が前記保持溝の部分に位置するように成形さ
れたことを特徴とする変倍フアインダの駆動カム
。[Scope of Claim for Utility Model Registration] In a variable magnification viewfinder in which the movable lens of the viewfinder optical system is driven by a cam and the magnification of the viewfinder changes according to the photographing magnification of the photographing lens, the cam has a spiral shape on the surface of the cylindrical body. a cam surface, and a circumferential holding groove for locking the movable lens when the photographing lens barrel is collapsed, is formed at the end of the cam surface, and the cam surface of the cam is formed into a mold for the cam surface, which is pulled out in the axial direction. and a mold for a retaining groove that is pulled out in the axial direction and a direction perpendicular to the axial direction. A drive cam for a variable magnification viewfinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989122843U JPH0622829Y2 (en) | 1989-10-20 | 1989-10-20 | Variable finder drive cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989122843U JPH0622829Y2 (en) | 1989-10-20 | 1989-10-20 | Variable finder drive cam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362326U true JPH0362326U (en) | 1991-06-18 |
| JPH0622829Y2 JPH0622829Y2 (en) | 1994-06-15 |
Family
ID=31670841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989122843U Expired - Fee Related JPH0622829Y2 (en) | 1989-10-20 | 1989-10-20 | Variable finder drive cam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622829Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9596945B2 (en) | 2014-04-16 | 2017-03-21 | Tempur-Pedic Management, Llc | Support cushions and methods for dissipating heat away from the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650308A (en) * | 1979-09-29 | 1981-05-07 | Hitachi Chem Co Ltd | Production of optical fiber connector plug |
| JPS56155911A (en) * | 1980-05-02 | 1981-12-02 | Nec Corp | Manufacture of optical mold connector |
| JPS62284336A (en) * | 1986-06-02 | 1987-12-10 | Asahi Optical Co Ltd | Finder device for lens shutter type camera having macrophotographing function |
-
1989
- 1989-10-20 JP JP1989122843U patent/JPH0622829Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650308A (en) * | 1979-09-29 | 1981-05-07 | Hitachi Chem Co Ltd | Production of optical fiber connector plug |
| JPS56155911A (en) * | 1980-05-02 | 1981-12-02 | Nec Corp | Manufacture of optical mold connector |
| JPS62284336A (en) * | 1986-06-02 | 1987-12-10 | Asahi Optical Co Ltd | Finder device for lens shutter type camera having macrophotographing function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0622829Y2 (en) | 1994-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |