JPS6287308U - - Google Patents
Info
- Publication number
- JPS6287308U JPS6287308U JP17972885U JP17972885U JPS6287308U JP S6287308 U JPS6287308 U JP S6287308U JP 17972885 U JP17972885 U JP 17972885U JP 17972885 U JP17972885 U JP 17972885U JP S6287308 U JPS6287308 U JP S6287308U
- Authority
- JP
- Japan
- Prior art keywords
- movable
- lens barrel
- sliding contact
- operating
- barrel body
- 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
- 239000012530 fluid Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
Landscapes
- Lens Barrels (AREA)
Description
図面はこの考案に係るレンズ鏡胴の実施例を示
し、第１図及び第２図はレンズ鏡胴の縦断面図で
、第１図は操作重さが重い状態、第２図は操作重
さが軽い状態を夫々示し、第３図は操作重さ変更
機構の一部拡大断面図、第４図は別の実施例のレ
ンズ鏡胴の一部を示す第２図に相当する縦断面図
、第５図及び第６図イ、ロはさらに別の実施例を
示し、第５図はレンズ鏡胴の一部を示す第２図に
相当する縦断面図、第６図イは操作重さが重い状
態のレンズ鏡胴の横断面図、第６図ロは操作重さ
が軽い状態のレンズ鏡胴の横断面図、第７図はさ
らは別の実施例のレンズ鏡胴の一部の横断面図で
ある。
Ｘ……光軸、Ｔ……鏡胴本体、ＨＭ……移動操
作部材、Ｌ……移動レンズユニツト、１６……流
体潤滑剤、ＨＷＣ……操作重さ変更機構、ＳＦ…
…鏡胴本体側摺接部、ＳＭ……移動操作部材側摺
接部、ＣＭ……変更操作具。
The drawings show an embodiment of the lens barrel according to this invention, and FIGS. 1 and 2 are longitudinal cross-sectional views of the lens barrel, with FIG. 1 showing the state when the operating weight is heavy and FIG. 3 is a partially enlarged sectional view of the operating weight changing mechanism, and FIG. 4 is a longitudinal sectional view corresponding to FIG. 2 showing a part of the lens barrel of another embodiment. 5 and 6A and 6B show still another embodiment, FIG. 5 is a vertical sectional view corresponding to FIG. 2 showing a part of the lens barrel, and FIG. FIG. 6B is a cross-sectional view of the lens barrel in a heavy state, FIG. 6B is a cross-sectional view of the lens barrel in a light state, and FIG. It is a front view. X... Optical axis, T... Lens barrel body, HM... Moving operation member, L... Moving lens unit, 16... Fluid lubricant, HWC... Operating weight changing mechanism, SF...
...Sliding contact part on the lens barrel body side, SM...Sliding contact part on the moving operation member side, CM...Modifying operation tool.
Claims (1)
有する鏡胴本体、及び、この移動レンズユニツト
に対する移動操作部材を備え、この移動操作部材
と鏡胴本体との間に操作重さ変更機構を介装した
レンズ鏡胴であつて、前記操作重さ変更機構が、
流体潤滑剤を介して互いに摺接することで操作重
さを付与する移動操作部材側摺接部と鏡胴本体側
摺接部、並びに、それら両摺接部を相対移動させ
てその摺接面積を変更する変更操作具からなるレ
ンズ鏡胴。 前記変更操作具が前記移動操作部材に兼用さ
れるものであり、前記移動レンズユニツトに対す
る操作方向とは異なる方向に操作することにより
、前記両摺接部の摺接面積の変更操作を行うもの
である実用新案登録請求の範囲第項に記載のレ
ンズ鏡胴。[Claims for Utility Model Registration] A lens barrel body having a movable lens unit movable in the optical axis direction, a movable operating member for the movable lens unit, and an operating member between the movable operating member and the lens barrel body. A lens barrel equipped with a weight changing mechanism, the operating weight changing mechanism comprising:
The sliding contact portion on the movable operation member side and the sliding contact portion on the lens barrel body side provide operating weight by slidingly contacting each other via a fluid lubricant, and the sliding contact area is increased by relatively moving these sliding contact portions. A lens barrel consisting of a changing operation tool. The changing operation tool is also used as the moving operation member, and by operating it in a direction different from the operating direction with respect to the movable lens unit, the sliding contact area of both the sliding contact parts is changed. A lens barrel according to claim 1 of a certain utility model registration claim.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17972885U JPS6287308U (en) | 1985-11-20 | 1985-11-20 | |
| US06/932,758 US4763987A (en) | 1985-11-20 | 1986-11-19 | Lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17972885U JPS6287308U (en) | 1985-11-20 | 1985-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6287308U true JPS6287308U (en) | 1987-06-04 |
Family
ID=31123043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17972885U Pending JPS6287308U (en) | 1985-11-20 | 1985-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6287308U (en) |
-
1985
- 1985-11-20 JP JP17972885U patent/JPS6287308U/ja active Pending
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