JPS6216898Y2 - - Google Patents
Info
- Publication number
- JPS6216898Y2 JPS6216898Y2 JP1982029068U JP2906882U JPS6216898Y2 JP S6216898 Y2 JPS6216898 Y2 JP S6216898Y2 JP 1982029068 U JP1982029068 U JP 1982029068U JP 2906882 U JP2906882 U JP 2906882U JP S6216898 Y2 JPS6216898 Y2 JP S6216898Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- protection cover
- cover
- lens barrel
- lens protection
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 3
- 239000010985 leather Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Blocking Light For Cameras (AREA)
- Accessories Of Cameras (AREA)
Description
【考案の詳細な説明】
本考案は、レンズ保護カバー、詳しくは、望遠
レンズ等の先端部が大径鏡筒部となつているレン
ズ鏡筒用のレンズ保護カバーに関する。[Detailed Description of the Invention] The present invention relates to a lens protection cover, and more particularly, to a lens protection cover for a lens barrel, such as a telephoto lens, whose tip end is a large diameter barrel part.
周知のように、従来のこの種のレンズ保護カバ
ーは、例えば第1図A〜Cに示すように構成され
ている。即ち、第1図に示す如く、先端部に大径
鏡筒部1aを有しているレンズ鏡筒1のレンズカ
バー2は、レザー等の可撓性材からなり、上記大
径鏡筒部1aの胴長より僅かに長い周壁2bを有
する有底円筒体で形成されており、その後端部2
cの周縁に沿つて設けられた紐通し孔3内に締め
紐4(第1図B,C参照)が引き通されており、
同締め紐4の両端部は周壁2bの後端部2cの切
欠部6から引き出され、その両端部には周知の引
き締具5が挿通されている。よつて、このレンズ
カバー2をレンズ鏡筒1の先端部に装着し、上記
締め紐4を引き締めることによつて、レンズカバ
ー2の後端部2cは第1図Aの点線で示すよう
に、レンズ鏡筒1の大径鏡筒部1aから小径鏡筒
部1cに連なる傾斜段部1bの斜面に沿つて内方
に収縮され、同段部1bの斜面に衝合する(第1
図C参照)。従つて、レンズカバー2はレンズ鏡
筒1の大径鏡筒部1aから抜け出すことなく、そ
の前面2aでレンズ(図示されず)の直前を覆
い、レンズを保護するようになる。 As is well known, a conventional lens protection cover of this type is constructed as shown in FIGS. 1A to 1C, for example. That is, as shown in FIG. 1, the lens cover 2 of the lens barrel 1, which has a large diameter barrel section 1a at its tip, is made of a flexible material such as leather. It is formed of a bottomed cylindrical body having a circumferential wall 2b slightly longer than the body length of the rear end 2.
A tightening cord 4 (see FIGS. 1B and C) is passed through a cord passing hole 3 provided along the periphery of c.
Both ends of the tightening string 4 are pulled out from a notch 6 in the rear end 2c of the peripheral wall 2b, and well-known tightening tools 5 are inserted into both ends. Therefore, by attaching this lens cover 2 to the tip of the lens barrel 1 and tightening the tightening string 4, the rear end 2c of the lens cover 2 is fixed as shown by the dotted line in FIG. 1A. The lens barrel 1 is contracted inward along the slope of the inclined stepped portion 1b that extends from the large diameter lens barrel portion 1a to the small diameter lens barrel portion 1c, and collides with the slope of the stepped portion 1b (the first
(See Figure C). Therefore, the lens cover 2 does not come out of the large-diameter lens barrel portion 1a of the lens barrel 1, but covers the front surface 2a of the lens in front of the lens (not shown) to protect the lens.
ところが、このような従来のレンズカバー2
は、その可撓性を好適なものにすることが困難で
あり、上記レンズ鏡筒1の傾斜段部の形状によつ
ては、上記レンズカバーの後端部2cと上記レン
ズ鏡筒1の段部1bとを好適に衝合させることが
出来ず、かつ、レンズ鏡筒1の持ち歩き時の移動
中に引き締具5がゆるんでカバー2が外れてしま
うことがあり、確実な抜け止め用としては不満足
なものとなつていた。 However, such a conventional lens cover 2
However, depending on the shape of the inclined stepped portion of the lens barrel 1, the rear end portion 2c of the lens cover and the stepped portion of the lens barrel 1 may 1b cannot be brought into proper contact with the lens barrel 1, and the tightening tool 5 may loosen and the cover 2 may come off while the lens barrel 1 is being carried around. It had become unsatisfactory.
本考案の目的は、上記の点に鑑み、上記レンズ
カバーの後端部に内方に向けて折り曲げられて、
上記レンズ鏡筒の傾斜段部に正確に衝合する内向
鍔状のカバー抜止用の係止部を形成すると共に、
同レンズカバー周壁の複数箇所に切断部を設け、
その切断部の周壁部に一体にフアスナー等の開閉
自在なカバー着脱用部材を設け、これによつて、
着脱自在で外れることのない極めて便利なレンズ
保護カバーを提供することにある。 In view of the above-mentioned points, the object of the present invention is to provide a lens cover that is bent inward at the rear end of the lens cover.
Forming an inwardly flange-like locking portion for preventing the cover from coming off, which accurately abuts against the inclined stepped portion of the lens barrel;
Cut sections are provided at multiple locations on the peripheral wall of the lens cover,
A member for attaching and detaching the cover, such as a fastener, which can be opened and closed, is integrally provided on the peripheral wall of the cut part, and thereby,
To provide an extremely convenient lens protection cover that is detachable and does not come off.
以下、本考案を図示の実施例に基いて説明す
る。 Hereinafter, the present invention will be explained based on the illustrated embodiments.
第2図Aは、本考案の一実施例を示すレンズ保
護カバー7の使用状態を示す断面図であつて、第
2図Bは同レンズ保護カバーの斜視図である。な
お、本実施例におけるレンズ保護カバー7は、上
記第1図に示すレンズ鏡筒1と全く同様なレンズ
鏡筒に用いられるもので、レンズ鏡筒については
同一符号を付すに止め、その説明は省略する。本
考案のレンズ保護カバー7は、上記第1図の従来
のレンズカバー2に比しやや硬質のレザー等の可
撓性材からなり、その後端部を除いてはほぼ同様
な、レンズの直前を覆う前面7aを有する円筒体
形状に形成されている。このレンズ保護カバー7
の後端部周壁は、上記レンズ鏡筒1の傾斜段部1
bに沿つて内方に折り曲げられた傾斜縁部で形成
され、ほぼ同段部1bと同巾の内向鍔状の抜け止
め用係止部7cとなつている。そして、同レンズ
保護カバー7の上記係止部7cを含む周壁7bに
は、第2図Bに示すように中心部に対してほぼ
120゜の角度をなす間隔をもつて2本の光軸方向
の切断部8a,8bが設けられ、同切断部には、
周知の開閉自在なフアスナーからなるカバー着脱
部材9a,9bが周壁7b、係止部7cに一体に
取り付けられている。従つて、上記切断部8a,
8b間の、係止部を含む周壁7Aは、上記フアス
ナーからなるカバー着脱部材9a,9bの締め具
10a,10bを引き下げて同部材9a,9bを
開いた状態にすれば、外方に引き倒すことが出来
る。そして、これを外方に引き倒した状態にして
上記レンズ鏡筒1の大径鏡筒部1aを入れること
は極めて容易であると共に、同大径鏡筒部1aを
レンズ保護カバー7で覆つた後、上記締め具10
a,10bを引き上げて上記周壁7Aを締め付け
れば、第2図A,Bに示すように、上記レンズ鏡
筒1の傾斜段部1bのほぼ全面に上記係止部7c
の内面が衝合して、同レンズ保護カバー7の前方
への移動は抑止され、レンズ鏡筒1から外れるこ
とは確実に防止される。 FIG. 2A is a cross-sectional view showing the lens protection cover 7 according to an embodiment of the present invention in use, and FIG. 2B is a perspective view of the same lens protection cover. The lens protection cover 7 in this embodiment is used for a lens barrel that is exactly the same as the lens barrel 1 shown in FIG. Omitted. The lens protection cover 7 of the present invention is made of a flexible material such as leather that is slightly harder than the conventional lens cover 2 shown in FIG. It is formed into a cylindrical shape having a front surface 7a to cover. This lens protection cover 7
The peripheral wall of the rear end portion is connected to the inclined stepped portion 1 of the lens barrel 1.
It is formed of an inclined edge bent inwardly along the direction b, and serves as an inward-flange-shaped retaining locking portion 7c having approximately the same width as the step portion 1b. As shown in FIG. 2B, the peripheral wall 7b of the lens protection cover 7 including the locking portion 7c is approximately
Two cutting portions 8a and 8b in the optical axis direction are provided with an interval of 120°, and the cutting portions include:
Cover attachment/detachment members 9a and 9b made of well-known openable and closable fasteners are integrally attached to the peripheral wall 7b and the locking portion 7c. Therefore, the cutting portion 8a,
The peripheral wall 7A including the locking part between the fasteners 8b can be pulled outward by pulling down the fasteners 10a and 10b of the cover attaching/detaching members 9a and 9b made of the fasteners to open the same members 9a and 9b. I can do it. It is extremely easy to pull this outward and insert the large-diameter lens barrel portion 1a of the lens barrel 1, and also to cover the large-diameter lens barrel portion 1a with the lens protection cover 7. After that, the above fastener 10
a, 10b and tighten the peripheral wall 7A, the locking portion 7c will be formed on almost the entire surface of the inclined stepped portion 1b of the lens barrel 1, as shown in FIGS. 2A and 2B.
The inner surfaces of the lens protection cover 7 are prevented from moving forward, and the lens protection cover 7 is reliably prevented from coming off the lens barrel 1.
なお、周壁に設けられる上記切断部8a,8b
の間隔は、レンズ保護カバー7の材質や厚さによ
り中心部に対して90゜〜180゜程度の角度をなす
間隔が開閉操作上好適である。 Note that the cut portions 8a and 8b provided on the peripheral wall
Depending on the material and thickness of the lens protection cover 7, it is preferable for the interval to form an angle of about 90° to 180° with respect to the center for opening and closing operations.
以上説明したように、本考案によれば操作性が
良く、外れることが絶対にない先端部に大径鏡筒
部を有するレンズ鏡筒のレンズ保護カバーを提供
することが出来る。 As described above, according to the present invention, it is possible to provide a lens protection cover for a lens barrel having a large-diameter barrel portion at the tip, which has good operability and never comes off.
第1図A,B,Cは、従来のレンズ保護カバー
の一例を示す断面図,斜視図及び係止態様を示す
斜視図、第2図A,Bは、本考案の一実施例を示
すレンズ保護カバーの断面図及び係止態様を示す
斜視図である。
1…レンズ鏡筒、1a…大径鏡筒部、1b…傾
斜段部、2,7…レンズ保護カバー、7c…係止
部、8a,8b…切断部、9a,9b…カバー着
脱用部材(フアスナー)。
FIGS. 1A, B, and C are a sectional view and perspective view showing an example of a conventional lens protection cover, and a perspective view showing a locking mode. FIGS. 2A and B are lenses showing an embodiment of the present invention. FIG. 3 is a cross-sectional view and a perspective view showing a locking mode of the protective cover. DESCRIPTION OF SYMBOLS 1... Lens barrel, 1a... Large diameter lens barrel part, 1b... Inclined step part, 2, 7... Lens protection cover, 7c... Locking part, 8a, 8b... Cutting part, 9a, 9b... Cover attachment/detachment member ( Fuasner).
Claims (1)
状レンズ保護カバーにおいて、 上記レンズ保護カバーの後端部に設けられ、上
記レンズ鏡筒の大径鏡筒部から小径鏡筒部に連な
る傾斜面段部に沿う内向傾斜縁部からなるレンズ
カバー抜止用係止部と、 上記レンズ保護カバーの周壁に設けられた複数
の光軸方向の切断部と、 上記レンズ保護カバーの周壁に一体であり、上
記複数の切断部に設けられたフアスナー等のレン
ズ保護カバー着脱用部材と、 を具備したことを特徴とするレンズ保護カバ
ー。[Scope of Claim for Utility Model Registration] In a cap-shaped lens protection cover for a lens barrel having a large-diameter barrel portion at its tip, the large-diameter mirror of the lens barrel is provided at the rear end of the lens protection cover. a locking part for preventing the lens cover from coming off, which is made up of an inwardly inclined edge along an inclined surface step extending from the cylinder part to the small-diameter lens barrel part; a plurality of cutting parts in the optical axis direction provided on the peripheral wall of the lens protection cover; A lens protection cover comprising: a member for attaching and detaching the lens protection cover, such as a fastener, which is integral with the peripheral wall of the lens protection cover and provided at the plurality of cut portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2906882U JPS58133132U (en) | 1982-03-01 | 1982-03-01 | Lens protection cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2906882U JPS58133132U (en) | 1982-03-01 | 1982-03-01 | Lens protection cover |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58133132U JPS58133132U (en) | 1983-09-08 |
JPS6216898Y2 true JPS6216898Y2 (en) | 1987-04-28 |
Family
ID=30040878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2906882U Granted JPS58133132U (en) | 1982-03-01 | 1982-03-01 | Lens protection cover |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58133132U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223330A (en) * | 1975-08-13 | 1977-02-22 | Saima Purodakutsu Corp | Portable case for photographic camera of pneumatic protection |
-
1982
- 1982-03-01 JP JP2906882U patent/JPS58133132U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223330A (en) * | 1975-08-13 | 1977-02-22 | Saima Purodakutsu Corp | Portable case for photographic camera of pneumatic protection |
Also Published As
Publication number | Publication date |
---|---|
JPS58133132U (en) | 1983-09-08 |
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