JPH0159210U - - Google Patents
Info
- Publication number
- JPH0159210U JPH0159210U JP15580087U JP15580087U JPH0159210U JP H0159210 U JPH0159210 U JP H0159210U JP 15580087 U JP15580087 U JP 15580087U JP 15580087 U JP15580087 U JP 15580087U JP H0159210 U JPH0159210 U JP H0159210U
- Authority
- JP
- Japan
- Prior art keywords
- lens frame
- cam
- cam ring
- cam groove
- 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.)
- Pending
Links
Landscapes
- Lens Barrels (AREA)
Description
第１図、第２図はそれぞれ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、第９図は同
従来の係合構造を示す断面図である。
１４……カム環、１６，１８……移動レンズ枠
、５１，５２……カム溝（インナーカム溝）、５
４，５５……連動ピン、５４ａ，５５ａ……軸部
、５４ｂ，５５ｂ……ローラ。
1 and 2 are cross-sectional views of essential parts showing embodiments of the engagement structure between the cam ring and the movable lens frame of the lens barrel according to the present invention, and FIG. 3 is a sectional view of the lens barrel to which the present invention is applied. An exploded perspective view showing an example, 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 cross section taken along the line - in FIG. 6. 8 is a plan view of FIG. 6, and FIG. 9 is a sectional view showing the conventional engagement structure. 14...Cam ring, 16, 18...Moving lens frame, 51, 52...Cam groove (inner cam groove), 5
4, 55... Interlocking pin, 54a, 55a... Shaft portion, 54b, 55b... Roller.
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
に開口させるとともに、移動レンズ枠を合成樹脂
材料から構成してその径方向に突出する連動ピン
をこのレンズ枠に一体に設け、この連動ピンを、
カム環のカム溝の端面開口部から該カム溝内に嵌
入させ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。 (3) 実用新案登録請求の範囲第１項または第２
項において、連動ピンは、合成樹脂製の移動レン
ズ枠の半径方向に突出させた、該レンズ枠と一体
の軸部と、この軸部外周に圧入したローラとから
なつているレンズ鏡筒のカム環と移動レンズ枠の
係合構造。 (4) 実用新案登録請求の範囲第１項または第２
項において、連動ピンは、合成樹脂製の移動レン
ズ枠の半径方向に突出させた、該レンズ枠と一体
の円柱状部からなつてい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 an end face of a cam ring, and the movable lens frame is made of a synthetic resin material. An interlocking pin that protrudes in the radial direction of the lens frame is provided integrally with the lens frame, and this interlocking pin is
An engagement structure between a cam ring of a lens barrel and a movable lens frame, characterized in that the cam ring is fitted into a cam groove from an end face opening of the cam groove. (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. (3) Scope of claims for utility model registration, paragraph 1 or 2
In paragraph 1, the interlocking pin is a cam of a lens barrel that is made of a shaft part that projects in the radial direction of a movable lens frame made of synthetic resin and is integral with the lens frame, and a roller that is press-fitted into the outer periphery of this shaft part. Engagement structure between ring and movable lens frame. (4) Scope of claims for utility model registration, paragraph 1 or 2
In paragraph 1, the interlocking pin is an engagement structure between a cam ring of a lens barrel and a movable lens frame, which is made of a cylindrical part integral with the lens frame and protruding in the radial direction of the movable lens frame made of synthetic resin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15580087U JPH0159210U (en) | 1987-10-12 | 1987-10-12 | |
| 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 |
|---|---|---|---|
| JP15580087U JPH0159210U (en) | 1987-10-12 | 1987-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0159210U true JPH0159210U (en) | 1989-04-13 |
Family
ID=31433749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15580087U Pending JPH0159210U (en) | 1987-10-12 | 1987-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0159210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010113166A (en) * | 2008-11-06 | 2010-05-20 | Nikon Corp | Lens barrel and image capturing apparatus |
| JP2012053142A (en) * | 2010-08-31 | 2012-03-15 | Canon Inc | Lens barrel and optical equipment including the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5491322A (en) * | 1977-12-28 | 1979-07-19 | Sankyo Kougaku Kougiyou Kk | Lens moving system using cam trough |
-
1987
- 1987-10-12 JP JP15580087U patent/JPH0159210U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5491322A (en) * | 1977-12-28 | 1979-07-19 | Sankyo Kougaku Kougiyou Kk | Lens moving system using cam trough |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010113166A (en) * | 2008-11-06 | 2010-05-20 | Nikon Corp | Lens barrel and image capturing apparatus |
| JP2012053142A (en) * | 2010-08-31 | 2012-03-15 | Canon Inc | Lens barrel and optical equipment including the same |
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