JPH0159209U - - Google Patents
Info
- Publication number
- JPH0159209U JPH0159209U JP15579987U JP15579987U JPH0159209U JP H0159209 U JPH0159209 U JP H0159209U JP 15579987 U JP15579987 U JP 15579987U JP 15579987 U JP15579987 U JP 15579987U JP H0159209 U JPH0159209 U JP H0159209U
- Authority
- JP
- Japan
- Prior art keywords
- cam ring
- cam
- cam groove
- lens frame
- movable 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Lens Barrels (AREA)
- Transmission Devices (AREA)
Description
第１図は本考案によるレンズ鏡筒のカム環と移
動レンズ枠の係合構造の実施例を示す要部の断面
図、第２図は同従来の係合構造を示す断面図、第
３図は本考案を適用するレンズ鏡筒の例を示す分
解斜視図、第４図は同縦断面図、第５図はカム環
の展開図、第６図はカム環部分の正面図、第７図
は第６図の―線に沿う断面図、第８図は第６
図の平面図である。
１４……カム環、１６，１８……移動レンズ枠
、１７，１９……連動ピン、５１，５２……カム
溝（インナーカム溝）。
Fig. 1 is a sectional view of essential parts showing an embodiment of the engagement structure between the cam ring of the lens barrel and the movable lens frame according to the present invention, Fig. 2 is a sectional view showing the conventional engagement structure, and Fig. 3 4 is an exploded perspective view showing an example of a lens barrel to which the present invention is applied, FIG. 4 is a longitudinal sectional view of the same, FIG. 5 is a developed view of the cam ring, FIG. 6 is a front view of the cam ring portion, and FIG. 7 is a sectional view taken along the line - in Fig. 6, and Fig. 8 is a sectional view taken along the - line in Fig. 6.
FIG. 14... Cam ring, 16, 18... Moving lens frame, 17, 19... Interlocking pin, 51, 52... Cam groove (inner cam groove).
Claims (1)
と；このカム環のカム溝に嵌まる連動ピンを有し
、カム環の回動に伴ないカム溝形状に従つて光軸
方向に移動する移動レンズ枠とを備えたレンズ鏡
筒において、上記カム溝の一端部をカム環の端面
に開口させ、移動レンズ枠の連動ピンを、予め該
移動レンズ枠に固定した状態においてこのカム溝
の端面開口部から該カム溝内に嵌入可能としたこ
とを特徴とするレンズ鏡筒のカム環と移動レンズ
枠の係合構造。 (2) 実用新案登録請求の範囲第１項において、
カム環のカム溝は、カム環の内面から加工され外
面が閉塞されたインナーカム溝であるレンズ鏡筒
のカム環と移動レンズ枠の係合構造。[Claims for Utility Model Registration] (1) A cam ring that has a cam groove on its circumferential surface and is driven to rotate; has an interlocking pin that fits into the cam groove of the cam ring, and that rotates as the cam ring rotates. In a lens barrel equipped with a movable lens frame that moves in the optical axis direction according to the shape of a cam groove, one end of the cam groove is opened at the end face of the cam ring, and the interlocking pin of the movable lens frame is moved in advance. An engagement structure between a cam ring of a lens barrel and a movable lens frame, characterized in that the cam ring of a lens barrel and a movable lens frame can be inserted into the cam groove from an end face opening of the cam groove when the cam ring is fixed to the lens frame. (2) In paragraph 1 of the claims for utility model registration,
The cam groove of the cam ring is an inner cam groove that is machined from the inner surface of the cam ring and the outer surface is closed.It is an engagement structure between the cam ring of the lens barrel and the movable lens frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987155799U JPH0710325Y2 (en) | 1987-10-12 | 1987-10-12 | Engaging structure between cam ring of lens barrel and moving lens frame |
| US07/256,865 US4948227A (en) | 1987-10-12 | 1988-10-12 | Apparatus for operatively connecting cam ring and associated member actuated thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987155799U JPH0710325Y2 (en) | 1987-10-12 | 1987-10-12 | Engaging structure between cam ring of lens barrel and moving lens frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0159209U true JPH0159209U (en) | 1989-04-13 |
| JPH0710325Y2 JPH0710325Y2 (en) | 1995-03-08 |
Family
ID=31433747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987155799U Expired - Lifetime JPH0710325Y2 (en) | 1987-10-12 | 1987-10-12 | Engaging structure between cam ring of lens barrel and moving lens frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710325Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018013797A (en) * | 2017-09-25 | 2018-01-25 | 株式会社ニコン | Lens barrel and imaging apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4986850U (en) * | 1972-11-14 | 1974-07-27 | ||
| JPS515441U (en) * | 1974-06-29 | 1976-01-16 | ||
| JPS52124737U (en) * | 1976-03-18 | 1977-09-22 |
-
1987
- 1987-10-12 JP JP1987155799U patent/JPH0710325Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4986850U (en) * | 1972-11-14 | 1974-07-27 | ||
| JPS515441U (en) * | 1974-06-29 | 1976-01-16 | ||
| JPS52124737U (en) * | 1976-03-18 | 1977-09-22 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018013797A (en) * | 2017-09-25 | 2018-01-25 | 株式会社ニコン | Lens barrel and imaging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710325Y2 (en) | 1995-03-08 |
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