JPS5941315U - Operation mechanism of rack-pinion lens feeding mechanism - Google Patents
Operation mechanism of rack-pinion lens feeding mechanismInfo
- Publication number
- JPS5941315U JPS5941315U JP13803482U JP13803482U JPS5941315U JP S5941315 U JPS5941315 U JP S5941315U JP 13803482 U JP13803482 U JP 13803482U JP 13803482 U JP13803482 U JP 13803482U JP S5941315 U JPS5941315 U JP S5941315U
- Authority
- JP
- Japan
- Prior art keywords
- pinion
- handle
- rack
- lens
- distance
- 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)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係るラックピニオン式レンズ繰り出し
機構の実施例を示す一部を断面とした要部の正面図、第
２図は第１図の■−■線に沿う断面図、第３図ないし第
５図は本考案の第二の実施例を示すもので、第３図は要
部の正面図、第４図は同縦断面図、第５図は指標環の壁
面を除いて描いた要部の斜視図である。
１・・・固定鏡筒、２・・・可動レンズ枠、３・・・ラ
ック、４・・・ピニオン箱、６・・・ピニオン、７・・
・ピニオン軸、８．１３・・・ガイド溝、１０．１２・
・・ピニオン把手、１１．１４・・・ガイドピン、１７
・・・位置規制ピン、１８．１９・・・位置規制環状突
起、１８ａ、１９ａ・・・軸方向突起、２０・・・軸方
向窓、２１・・・遠距離側距離目盛、２２・・・近距離
側距離目盛。
第１図
第３図Fig. 1 is a partially sectional front view of the main parts showing an embodiment of the rack and pinion type lens feeding mechanism according to the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 5 to 5 show a second embodiment of the present invention, in which FIG. 3 is a front view of the main parts, FIG. 4 is a vertical cross-sectional view of the same, and FIG. 5 is a drawing with the wall surface of the indicator ring removed. FIG. 1... Fixed lens barrel, 2... Movable lens frame, 3... Rack, 4... Pinion box, 6... Pinion, 7...
・Pinion shaft, 8.13...Guide groove, 10.12・
...Pinion handle, 11.14...Guide pin, 17
...Position regulation pin, 18.19...Position regulation annular projection, 18a, 19a...Axis direction projection, 20...Axis direction window, 21...Far side distance scale, 22... Close distance scale. Figure 1 Figure 3
Claims (3)
自在に支持したピニオンに噛み合わせ、このピニオンの
軸に回転操作用ピニオン把手を設けたラックピニオン式
レンズ繰り出し機構において、上記ピニオン軸とピニオ
ン把手の嵌合部のいずれか一方に軸方向のガイド横溝を
設け、他方にこのガイド溝に嵌入するガイドピンを設け
て該ピニオン把手を伸縮可能としたことを特徴とするラ
ックピニオン式レンズ繰り出し機構の操作機構。(1) In a rack-and-pinion lens feeding mechanism in which a rack connected to a movable lens is engaged with a pinion rotatably supported on a fixed lens barrel, and a pinion handle for rotational operation is provided on the shaft of this pinion, the pinion shaft and A rack and pinion type lens feeder characterized in that one of the fitting parts of the pinion handle is provided with an axial guide horizontal groove, and the other side is provided with a guide pin that fits into the guide groove, so that the pinion handle can be extended and contracted. Mechanism operating mechanism.
ン把手は可動レンズの全移動距離に対して一回転以上必
要とするものであってその一部に距離表示部が設けられ
、固定鏡筒側にはこの距離表示部の外側に位置する指標
環が固定されており、上記距離表示部には、ピニオン把
手を縮めた状態において露見する遠距離側または近距離
側の距離目盛と、ピニオン把手を縮めた状態では指標環
の内側に隠れ、伸した状態で露見す−る近距離側または
遠距離側の距離目盛とが１列に付されているラックピニ
オン式レンズ繰り出し機構の操作機構。(2) Scope of Utility Model Registration Claims Paragraph 1 states that the pinion handle requires one or more rotations for the entire moving distance of the movable lens, a distance display section is provided in a part of the pinion handle, and the fixed lens barrel An indicator ring located on the outside of this distance display section is fixed to the side, and the distance display section has a distance scale on the far side or near side that is exposed when the pinion handle is retracted, and a distance scale on the far side or near side that is exposed when the pinion handle is retracted. An operation mechanism for a rack and pinion type lens feeding mechanism, which has a distance scale on the near side or far side that is hidden inside the index ring when the lens is retracted and exposed when it is extended.
ン把手と指標環との間には、ピニオン把手の伸縮を特定
の中間距離目盛位置でのみ可能とする軸方向移動制限手
段が設けられているラックピニオン式レンズ繰り出し機
構の操作機構。(3) Utility model registration In claim 2, an axial movement limiting means is provided between the pinion handle and the index ring to allow the pinion handle to expand and contract only at a specific intermediate distance scale position. Operation mechanism for the rack and pinion type lens feeding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13803482U JPS5941315U (en) | 1982-09-11 | 1982-09-11 | Operation mechanism of rack-pinion lens feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13803482U JPS5941315U (en) | 1982-09-11 | 1982-09-11 | Operation mechanism of rack-pinion lens feeding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5941315U true JPS5941315U (en) | 1984-03-16 |
Family
ID=30309846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13803482U Pending JPS5941315U (en) | 1982-09-11 | 1982-09-11 | Operation mechanism of rack-pinion lens feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941315U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140858U (en) * | 1974-09-20 | 1976-03-26 | ||
| JPS5456820A (en) * | 1977-10-15 | 1979-05-08 | Asahi Optical Co Ltd | Photographic lens barrel focusing device |
-
1982
- 1982-09-11 JP JP13803482U patent/JPS5941315U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140858U (en) * | 1974-09-20 | 1976-03-26 | ||
| JPS5456820A (en) * | 1977-10-15 | 1979-05-08 | Asahi Optical Co Ltd | Photographic lens barrel focusing device |
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