JPH0217723U

JPH0217723U -

Info

Publication number: JPH0217723U
Application number: JP9514388U
Authority: JP
Priority date: 1988-07-20
Filing date: 1988-07-20
Publication date: 1990-02-06

Description

[Brief explanation of drawings]

第１図は本考案のキヤツプ本体の正面図、第２
図は第１図のＡ―Ａ断面図、第３図は本考案のね
じリングの正面図、第４図は第３図のＢ―Ｂ断面
図、第５図は本考案の抜け止めリングの断面図、
第６図は本考案のレンズキヤツプの装着前の状態
を示す断面図、第７図は本考案のレンズキヤツプ
の装着後の状態を示す断面図、第８図は第６図の
部分拡大断面図、第９図は第７図の部分拡大断面
図、第１０図はレンズ鏡筒環に当接された本考案
のレンズキヤツプの部分拡大断面図、第１１図は
ねじリングとレンズ鏡筒環との接触面の斜視図、
第１２図は第１１図の実施例の断面図、第１３図
はねじリングとレンズ鏡筒環との接触面の他の実
施例の斜視図、第１４図は第１３図のレンズ鏡筒
環の断面図、第１５図はねじリングとレンズ鏡筒
環との接触面の他の実施例の断面図、第１６図は
ねじリングとレンズ鏡筒環との接触面の更に他の
実施例の断面図、第１７図はキヤツプ本体側に対
向するねじリングの接触面の他の実施例を示す斜
視図、第１８図はねじリングの他の実施例を示す
平面図、第１９図は接触防止鍔を形成したねじリ
ングの部分断面図である。１……キヤツプ本体、２，７……ねじリング、
２５……雄ねじ部、４……レンズ鏡筒環、４１…
…雌ねじ部、１３，２２……ねじリング変形手段
。 Figure 1 is a front view of the cap body of the present invention, Figure 2
The figure is a cross-sectional view taken along line A-A in Figure 1, Figure 3 is a front view of the threaded ring of the present invention, Figure 4 is a cross-sectional view taken along line B-B of Figure 3, and Figure 5 is a cross-sectional view of the retaining ring of the present invention. cross section,
Figure 6 is a sectional view showing the lens cap of the present invention before it is installed, Figure 7 is a sectional view of the lens cap of the invention after it is installed, and Figure 8 is a partially enlarged sectional view of Figure 6. , FIG. 9 is a partially enlarged sectional view of FIG. 7, FIG. 10 is a partially enlarged sectional view of the lens cap of the present invention in contact with the lens barrel ring, and FIG. 11 is a partially enlarged sectional view of the threaded ring and the lens barrel ring. A perspective view of the contact surface of
12 is a cross-sectional view of the embodiment shown in FIG. 11, FIG. 13 is a perspective view of another embodiment of the contact surface between the screw ring and the lens barrel ring, and FIG. 14 is the lens barrel ring shown in FIG. 13. 15 is a sectional view of another embodiment of the contact surface between the screw ring and the lens barrel ring, and FIG. 16 is a sectional view of still another embodiment of the contact surface between the screw ring and the lens barrel ring. 17 is a perspective view showing another embodiment of the contact surface of the screw ring facing the cap body side, FIG. 18 is a plan view showing another embodiment of the screw ring, and FIG. 19 is a contact prevention FIG. 3 is a partial cross-sectional view of a screw ring with a collar formed thereon. 1... Cap body, 2, 7... Screw ring,
25...Male thread part, 4...Lens barrel ring, 41...
...Female threaded portion, 13, 22... Threaded ring deformation means.

Claims

[Scope of Claim for Utility Model Registration] (1) In a lens cap equipped with a threaded portion that can be engaged with the mounting threaded portion of the lens barrel ring provided with the mounting threaded portion, It consists of a threaded ring with a partially threaded part that can be fitted together, and a cap body that holds the threaded ring so as to be able to rotate relative to each other and gives elastic deformation to the threaded ring, and the cap body and the threaded ring A lens cap characterized in that a means for deforming a threaded ring due to relative rotation is provided between the lens cap and the threaded ring, and a threaded portion provided on the threaded ring is engaged with and detached from a threaded portion of a level lens barrel ring. (2) Regarding the amount of friction on each contact surface between the lens barrel ring, threaded ring, and cap body, the frictional force between the lens barrel ring and the threaded ring is calculated as the frictional force between the threaded ring and the cap body. 2. The lens cap according to claim 1, wherein the lens cap is formed larger than the size of the lens cap.