JP2017037206A - Lens cap and camera system - Google Patents

Lens cap and camera system Download PDF

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JP2017037206A
JP2017037206A JP2015158609A JP2015158609A JP2017037206A JP 2017037206 A JP2017037206 A JP 2017037206A JP 2015158609 A JP2015158609 A JP 2015158609A JP 2015158609 A JP2015158609 A JP 2015158609A JP 2017037206 A JP2017037206 A JP 2017037206A
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lens
cap
camera
pair
opening
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紘一 繁田
Koichi Shigeta
紘一 繁田
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Canon Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a lens cap that stabilizes an orientation of a camera by a simple method such that the lens cap is not an obstacle to surroundings upon non-usage of the camera, and hardly comes off from a lens.SOLUTION: A lens cap comprises: a cap main body that covers a lens surface on an object side of a lens barrel; and a pair of cap holding members that is movable in a radius direction of a cap, and is urged in an outer direction, in which a first engagement part provided on an outer peripheral side engages with a second engagement part of an edge part inner surface provided at a lens tip part. A pair of opening parts is provided on a lateral surface of the cap main body, and on an extension of the direction where the pair of cap holding members is urged, in which convexity parts provided in the pair of cap holding parts cover a part of the opening part at a position where the cap holding member engages with the lens tip part.SELECTED DRAWING: Figure 3

Description

本発明は、ストラップ取付部を持ち大型レンズを搭載もしくは装着可能なカメラに取り付ける、レンズキャップに関する。   The present invention relates to a lens cap that has a strap attachment portion and is attached to a camera on which a large lens can be mounted or attached.

近年、撮影性能を向上させるために大型レンズを搭載もしくは装着可能なカメラが存在する。これらのカメラは非使用時にもレンズがカメラ本体から突出していることが特徴である。カメラは非使用時にレンズを保護する必要があり、レンズ鏡筒先端に剛性の高いレンズキャップを装着することが多い。   In recent years, there are cameras capable of mounting or mounting a large lens in order to improve photographing performance. These cameras are characterized in that the lens protrudes from the camera body even when not in use. Cameras need to protect the lens when not in use, and a highly rigid lens cap is often attached to the end of the lens barrel.

レンズキャップは、ユーザが即座に撮影できるようにレンズ鏡筒から外しやすいことが求められる。そのため従来、半径方向に摺動可能なキャップ保持部材がレンズ鏡筒先端の凹凸部に係合して装着され、ユーザがレンズキャップの中心方向にキャップ保持部材を移動させて係合解除することで、簡単に外すことができるレンズキャップが存在する(特許文献1参照)。またカメラには、本体の両脇にストラップ取付部材が設けられており、非使用時にユーザはストラップを用いて首や肩からカメラを吊り下げることができる。   The lens cap is required to be easily removed from the lens barrel so that the user can immediately shoot. For this reason, conventionally, a cap holding member that is slidable in the radial direction is engaged with and attached to the concavo-convex portion at the tip of the lens barrel, and the user moves the cap holding member toward the center of the lens cap to release the engagement. There is a lens cap that can be easily removed (see Patent Document 1). Moreover, the camera is provided with strap attachment members on both sides of the main body, and the user can suspend the camera from the neck or shoulder using the strap when not in use.

特許文献1に記載のレンズキャップは、カメラ非使用時に意図せずしてレンズ鏡筒から外れ、ユーザが紛失してしまうという問題があった。この問題に対してカメラ撮影時に外したレンズキャップを紛失しないために、レンズキャップとカメラ本体とを紐部材で結合する技術が存在する(特許文献2参照)。   The lens cap described in Patent Document 1 is unintentionally detached from the lens barrel when the camera is not used, and there is a problem that the user loses it. In order to avoid this problem, the lens cap removed at the time of camera shooting is not lost, and there is a technique for joining the lens cap and the camera body with a string member (see Patent Document 2).

しかしながらこのような技術は、カメラ非使用時に意図せずしてレンズキャップがレンズ鏡筒から外れて、レンズを保護できなくなる問題を解決していない。   However, such a technique does not solve the problem that the lens cap is unintentionally detached from the lens barrel and the lens cannot be protected when the camera is not used.

また大型レンズを搭載もしくは装着したカメラは、ユーザが首や肩からカメラを吊り下げた時に、大きなレンズが周囲に突出して移動の邪魔になる可能性がある。図8はユーザが非使用のカメラをストラップを用いて肩から吊り下げた状態を示す概念図である。特に図8(A)はレンズが水平方向に突出していることを示している。従って大きなレンズを取り付けたカメラを首や肩から吊り下げるときは、図8(B)や図8(C)に示すようにレンズ光軸方向が略鉛直方向を向いていることが望ましい。   In addition, when a user mounts or attaches a large lens to the camera, the user may hang the camera from his neck or shoulder, and the large lens may protrude to the surroundings and hinder movement. FIG. 8 is a conceptual diagram showing a state in which a user suspends an unused camera from the shoulder using a strap. In particular, FIG. 8A shows that the lens protrudes in the horizontal direction. Therefore, when a camera with a large lens is hung from the neck or shoulder, it is desirable that the optical axis direction of the lens is substantially vertical as shown in FIGS. 8B and 8C.

この課題に対して従来、レンズにストラップ取り付け部を一定角度範囲で回動自在に取り付けた技術がある(特許文献3参照)。しかし特許文献3に記載の技術は、ストラップ取付部回動機構によってレンズがさらに大型化する問題がある。   Conventionally, there is a technique for attaching a strap attachment portion to a lens so as to be rotatable within a certain angle range (see Patent Document 3). However, the technique described in Patent Document 3 has a problem that the lens is further increased in size by the strap attachment portion rotating mechanism.

特開2005−114874号公報JP 2005-114874 A 特開2000−194035号公報JP 2000-194035 A 特開平5−11337号公報JP-A-5-11337

本発明は、簡易な方法でカメラ非使用時に周囲に邪魔にならないようにカメラの向きを安定化させ、かつレンズキャップをレンズから外れにくくすることを目的とする。   An object of the present invention is to stabilize the orientation of a camera so that it does not get in the way when the camera is not used, and to make it difficult to remove the lens cap from the lens.

上記の目的を達成するために、本発明に係るレンズキャップは、
レンズ鏡筒の対物側のレンズ面を覆うキャップ本体と、半径方向に移動可能かつ外方向に付勢されかつ外周側に設けられた第1の係合部が該レンズ先端部に設けられた縁部内面の第2の係合部に係合する一対のキャップ保持部材を備え、
前記キャップ本体側面の、前記キャップ保持部材の対が付勢される方向の延長上に開口部の対が設けられ、
前記キャップ保持部材の対に設けられた凸部が、前記キャップ保持部材が前記レンズ先端部に係合する位置において、前記開口部の一部を塞ぐことを特徴とする。
In order to achieve the above object, the lens cap according to the present invention comprises:
A cap body that covers the lens surface on the objective side of the lens barrel, and an edge that is movable in the radial direction and is urged outwardly and provided on the outer peripheral side is provided at the front end of the lens A pair of cap holding members that engage with the second engaging portion of the inner surface of the portion;
A pair of openings is provided on the side of the cap body on the extension of the direction in which the pair of cap holding members is urged,
A convex portion provided in the pair of cap holding members closes a part of the opening at a position where the cap holding member engages with the lens tip.

また、本発明の他の特徴とするところは、
前記開口部は矩形状であって可撓性ベルト部材を挿通可能であり、前記凸部は前記キャップ保持部材が前記レンズ先端部に係合する位置において、前記開口部に挿通されたベルト部材を押圧することを特徴とする。
Another feature of the present invention is that
The opening is rectangular and a flexible belt member can be inserted, and the convex portion is a belt member inserted through the opening at a position where the cap holding member is engaged with the lens tip. It is characterized by pressing.

また、本発明のその他の特徴とするところは、
前記レンズ鏡筒がカメラ本体から突出して搭載あるいは着脱可能なカメラ本体と、請求項2に記載のレンズキャップとを含むカメラシステムであって、
前記ベルト部材を取り付け可能でありカメラ本体の前記レンズ鏡筒を挟んで対向する2面に設けられたベルト固定部を有するカメラシステムであることを特徴とする。
In addition, other features of the present invention are:
A camera system comprising: a camera body in which the lens barrel protrudes from the camera body and can be mounted or removed; and the lens cap according to claim 2,
It is a camera system having a belt fixing part provided on two surfaces which can be attached to the belt member and are opposed to each other with the lens barrel of the camera body interposed therebetween.

本発明によれば、簡易な方法でカメラ非使用時に周囲に邪魔にならないようにカメラの向きを安定化させ、かつレンズキャップをレンズから外れにくくすることができる。   According to the present invention, it is possible to stabilize the orientation of the camera so as not to disturb the surroundings when the camera is not used, and to make it difficult to remove the lens cap from the lens by a simple method.

交換レンズとカメラを表す斜視図Perspective view showing interchangeable lens and camera 交換レンズの対物側の詳細図Detailed view of the objective side of the interchangeable lens レンズキャップを示す斜視図A perspective view showing a lens cap レンズキャップをカメラ本体に装着した交換レンズに取り付けた状態を表す斜視図The perspective view showing the state where the lens cap was attached to the interchangeable lens attached to the camera body レンズキャップをカメラ本体に装着した交換レンズに取り付けた状態を表す断面斜視図Cross-sectional perspective view showing a state where the lens cap is attached to the interchangeable lens attached to the camera body レンズキャップをレンズから取り外し可能にした状態を表す断面斜視図Cross-sectional perspective view showing a state in which the lens cap is removable from the lens レンズキャップをレンズから取り外して使用可能状態となったカメラを示す斜視図The perspective view which shows the camera which removed the lens cap from the lens and became ready for use カメラ非使用時にストラップを介してユーザが肩から吊り下げた状態を示す概念図Conceptual diagram showing a state where the user hangs from the shoulder via the strap when the camera is not used

以下、本発明を実施するための形態を図面に基づいて説明する。
<第1の実施形態>
図1は本発明の実施例にかかるカメラシステムを表す斜視図である。本実施例ではサイズの異なるレンズを着脱可能なレンズ交換型カメラを用いて説明するが、非レンズ交換型カメラであっても良い。1は交換レンズであり、公知のバヨネット機構でカメラ本体2に装着可能である。すなわちレンズ1は矢印A方向にマウント21に当接する位置まで押入した後に矢印B方向に一定角度回転させると、マウント21に突出したマウントロックピン22がレンズ1に係合することで角度を規制され、カメラ本体2に固定される。
Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
<First Embodiment>
FIG. 1 is a perspective view showing a camera system according to an embodiment of the present invention. In this embodiment, description will be made using a lens interchangeable camera in which lenses having different sizes can be attached and detached, but a non-lens interchangeable camera may be used. Reference numeral 1 denotes an interchangeable lens that can be attached to the camera body 2 by a known bayonet mechanism. That is, when the lens 1 is pushed to the position in contact with the mount 21 in the direction of arrow A and then rotated by a certain angle in the direction of arrow B, the angle is regulated by the mount lock pin 22 protruding from the mount 21 being engaged with the lens 1. The camera body 2 is fixed.

ロック解除ボタン23はマウントロックピン22に連動している。ユーザがロック解除ボタン23を押すとマウントロックピン22のレンズ1に対する係合が解除され、ユーザはレンズ1をカメラ本体2から外すことができる。24はストラップ取付部である。主に布や革などの可撓部材からなるストラップ3(後述)をストラップ取付部24に括りつけることで、ユーザは非使用時にユーザが首や肩からカメラを吊り下げたりするのに用いることができる。本実施例ではストラップ取付部24はカメラ本体2に固定されているが、矢印C方向に回転自在であっても良い。   The lock release button 23 is linked to the mount lock pin 22. When the user presses the lock release button 23, the mount lock pin 22 is disengaged from the lens 1, and the user can remove the lens 1 from the camera body 2. Reference numeral 24 denotes a strap attachment portion. The strap 3 (to be described later) mainly made of a flexible member such as cloth or leather is tied to the strap mounting portion 24 so that the user can hang the camera from the neck or shoulder when not in use. it can. In this embodiment, the strap attachment portion 24 is fixed to the camera body 2, but it may be rotatable in the direction of arrow C.

図2はレンズ1の対物側の詳細図である。また図3は本発明の実施例にかかるレンズキャップを示す斜視図である。特に図3(A)は全体を示す図である。また図3(B)はレンズキャップ裏面の一部を示す図である。図2に示すように、レンズ前玉11の周囲には内壁に凹凸部13が形成された縁部12が設けられている。後述するように凹凸部13はレンズキャップ4を装着する時に、レンズキャップ4の外周に設けられた凹凸部に係合する。図3に示すように円盤形状のレンズキャップ本体部材41に設けられた切り欠き部411には、キャップ保持部材42が半径方向に摺動可能に収納されている。   FIG. 2 is a detailed view of the objective side of the lens 1. FIG. 3 is a perspective view showing a lens cap according to an embodiment of the present invention. In particular, FIG. 3A is a diagram showing the whole. FIG. 3B shows a part of the rear surface of the lens cap. As shown in FIG. 2, an edge 12 having an uneven portion 13 formed on the inner wall is provided around the lens front lens 11. As will be described later, when the lens cap 4 is mounted, the uneven portion 13 engages with the uneven portion provided on the outer periphery of the lens cap 4. As shown in FIG. 3, a cap holding member 42 is accommodated in a notch 411 provided in a disk-shaped lens cap body member 41 so as to be slidable in the radial direction.

キャップ保持部材42はレンズキャップ4内部に設けられたバネ部材(非図示)によって半径外方向に付勢される。キャップ保持部材42には外壁に凹凸部421が形成された円弧リブ422が設けられている。レンズキャップ本体部材41の側面にはキャップ保持部材42の付勢方向かつキャップ保持部材42より外周側に矩形開口部412が設けられている。矩形開口部412の側壁のうちキャップ保持部材42に近接する面413および対向する面414には、キャップ保持部材42の付勢方向に開口部415、開口部416が設けられる。   The cap holding member 42 is biased outward in the radial direction by a spring member (not shown) provided in the lens cap 4. The cap holding member 42 is provided with an arc rib 422 having an uneven portion 421 formed on the outer wall. A rectangular opening 412 is provided on the side surface of the lens cap body member 41 on the outer side of the cap holding member 42 in the biasing direction of the cap holding member 42. An opening 415 and an opening 416 are provided in the urging direction of the cap holding member 42 on the surface 413 adjacent to the cap holding member 42 and the surface 414 facing the cap holding member 42 in the side wall of the rectangular opening 412.

キャップ保持部材42の外周部に設けられた凸部423が開口部415を挿通し、凸部423の端424が矩形開口部412内に進入する。端424と面414の距離は、後述するストラップ3の厚さより小さい。   A convex portion 423 provided on the outer peripheral portion of the cap holding member 42 passes through the opening 415, and an end 424 of the convex portion 423 enters the rectangular opening 412. The distance between the end 424 and the surface 414 is smaller than the thickness of the strap 3 described later.

図4、5は本発明の実施例にかかるレンズキャップ4を、カメラ本体2に装着した交換レンズ1に取り付けた状態を表す斜視図と断面斜視図である。図4に示すようにストラップ3はレンズキャップ4の矩形開口部412に通された後に、カメラ本体2のストラップ取付部24に括りつけられる。図5に示すようにキャップ保持部材42が半径外方向に付勢されることで、レンズ1の凹凸部13とキャップ保持部材42の凹凸部421が係合し、レンズキャップ4はレンズ1に係止される。同時に凸部423の端424がストラップ3を押圧する。   4 and 5 are a perspective view and a cross-sectional perspective view illustrating a state in which the lens cap 4 according to the embodiment of the present invention is attached to the interchangeable lens 1 attached to the camera body 2. As shown in FIG. 4, the strap 3 is passed through the rectangular opening 412 of the lens cap 4 and then tied to the strap attaching portion 24 of the camera body 2. As shown in FIG. 5, when the cap holding member 42 is urged outward in the radial direction, the uneven portion 13 of the lens 1 and the uneven portion 421 of the cap holding member 42 are engaged, and the lens cap 4 is engaged with the lens 1. Stopped. At the same time, the end 424 of the convex portion 423 presses the strap 3.

端424と面414の距離はストラップ3の厚さより小さいので、ストラップ3は開口部416に押し込まれ、レンズキャップ4はストラップ3に係止される。レンズキャップ4がレンズ1とストラップ3に同時に係止されることで、レンズキャップ4がレンズ1から外れにくくなり、さらにストラップ3に予め通されていることで無くすことがない。またユーザがカメラ非使用時に首や肩から吊り下げた時に、レンズ1をカメラ本体2に対して安定して上に向けることができ、周囲の邪魔にならない。   Since the distance between the end 424 and the surface 414 is smaller than the thickness of the strap 3, the strap 3 is pushed into the opening 416 and the lens cap 4 is locked to the strap 3. Since the lens cap 4 is simultaneously locked to the lens 1 and the strap 3, the lens cap 4 is not easily detached from the lens 1, and is not lost by being passed through the strap 3 in advance. Further, when the user hangs from the neck or shoulder when the camera is not in use, the lens 1 can be stably directed upward with respect to the camera body 2, and the surroundings are not disturbed.

図6は図4の状態からレンズキャップ4のレンズ1への係合状態を解除し、レンズキャップ4をレンズ1から取り外し可能にした状態を表す断面斜視図である。ユーザはキャップ保持部材42の面425をつまむなどしてキャップ保持部材42を付勢方向と逆の方向へ摺動させることが可能である。ユーザがキャップ保持部材42の面425をつまむなどしてキャップ保持部材42を付勢方向と逆方向に摺動させると、凹凸部13と凹凸部421の係合が解除される。同時に凸部423が矩形開口部412から退避しストラップ3への押圧が解除される。   6 is a cross-sectional perspective view showing a state in which the lens cap 4 is released from the state shown in FIG. 4 and the lens cap 4 is removable from the lens 1. The user can slide the cap holding member 42 in a direction opposite to the biasing direction by pinching the surface 425 of the cap holding member 42. When the user slides the cap holding member 42 in a direction opposite to the urging direction by pinching the surface 425 of the cap holding member 42, the engagement between the uneven portion 13 and the uneven portion 421 is released. At the same time, the convex portion 423 retracts from the rectangular opening 412 and the pressure on the strap 3 is released.

従って、ユーザはレンズキャップ4をストラップ3に引っ掛かることなく、レンズ1から外すことができる。   Therefore, the user can remove the lens cap 4 from the lens 1 without being caught by the strap 3.

図7は図4の状態からレンズキャップ4をレンズ1から取り外して、使用可能状態となったカメラを示す斜視図である。レンズキャップ4はストラップ3に沿って、ストラップ取付部24近傍から肩かけ部の中間までをスライド可能である。従ってカメラ使用時にレンズ1から取り外しても、レンズキャップ4をなくすことが無い。   FIG. 7 is a perspective view showing the camera in a usable state after the lens cap 4 is removed from the lens 1 from the state of FIG. The lens cap 4 can slide along the strap 3 from the vicinity of the strap attaching portion 24 to the middle of the shoulder portion. Therefore, the lens cap 4 is not lost even if it is removed from the lens 1 when the camera is used.

以上、本発明をその好適な実施形態に基づいて詳述してきたが、本発明はこれら特定の実施形態に限られるものではなく、この発明の要旨を逸脱しない範囲の様々な形態も本発明に含まれる。上述の実施形態の一部を適宜組み合わせてもよい。   Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. A part of the above-described embodiments may be appropriately combined.

1 レンズ、11 レンズ前玉、12 レンズ対物側先端の縁部、
13 レンズに設けられた凹凸部、2 カメラ本体、21 カメラマウント、
22 マウントロックピン、23 ロック解除ボタン、24 ストラップ取付部、
3 ストラップ、4 レンズキャップ、41 レンズキャップ本体部材、
411 レンズキャップ本体部材に設けた切り欠き部、412 矩形開口部、
413 矩形開口部側壁、414 矩形開口部側壁、
415 矩形開口部側壁に設けた開口部、416 矩形開口部側壁に設けた開口部、
42 キャップ保持部材、421 凹凸部、422 円弧リブ、423 凸部、
424 凸部端、425 キャップ保持部材のつまみ面
1 lens, 11 lens front lens, 12 edge of the lens objective side tip,
13 Concavity and convexity provided on the lens, 2 camera body, 21 camera mount,
22 mount lock pin, 23 lock release button, 24 strap attachment,
3 strap, 4 lens cap, 41 lens cap body member,
411 Notch provided in the lens cap body member, 412 rectangular opening,
413 rectangular opening side wall, 414 rectangular opening side wall,
415 opening provided in the side wall of the rectangular opening, 416 opening provided in the side wall of the rectangular opening,
42 cap holding member, 421 uneven portion, 422 arc rib, 423 convex portion,
424 Convex end, 425 Knob surface of cap holding member

Claims (3)

レンズ鏡筒の対物側のレンズ面を覆うキャップ本体と、キャップの半径方向に移動可能かつ外方向に付勢されかつ外周側に設けられた第1の係合部が該レンズ先端部に設けられた縁部内面の第2の係合部に係合する一対のキャップ保持部材を備えるレンズキャップにおいて、
前記キャップ本体側面の、前記キャップ保持部材の対が付勢される方向の延長上に開口部の対が設けられ、
前記キャップ保持部材の対に設けられた凸部が、前記キャップ保持部材が前記レンズ先端部に係合する位置において、前記開口部の一部を塞ぐことを特徴とするレンズキャップ。
A cap body that covers the lens surface on the objective side of the lens barrel, and a first engagement portion that is movable in the radial direction of the cap and biased outward and provided on the outer peripheral side are provided at the tip of the lens. In the lens cap including a pair of cap holding members that engage with the second engaging portion of the inner surface of the edge portion,
A pair of openings is provided on the side of the cap body on the extension of the direction in which the pair of cap holding members is urged,
A lens cap, wherein a convex portion provided on the pair of cap holding members closes a part of the opening at a position where the cap holding member engages with the lens tip.
前記開口部は矩形状であって可撓性ベルト部材を挿通可能であり、前記凸部は前記キャップ保持部材が前記レンズ先端部に係合する位置において、前記開口部に挿通されたベルト部材を押圧することを特徴とする請求項1に記載のレンズキャップ。 The opening is rectangular and a flexible belt member can be inserted, and the convex portion is a belt member inserted through the opening at a position where the cap holding member is engaged with the lens tip. The lens cap according to claim 1, wherein the lens cap is pressed. 前記レンズ鏡筒がカメラ本体から突出して搭載あるいは着脱可能なカメラ本体と、請求項2に記載のレンズキャップとを含むカメラシステムにおいて、
前記ベルト部材を取り付け可能でありカメラ本体の前記レンズ鏡筒を挟んで対向する2面に設けられたベルト固定部を有することを特徴とするカメラシステム。
In the camera system including the camera body, wherein the lens barrel protrudes from the camera body and can be mounted or removed, and the lens cap according to claim 2.
A camera system, comprising: a belt fixing portion provided on two surfaces of the camera main body that are opposed to each other with the lens barrel interposed therebetween, to which the belt member can be attached.
JP2015158609A 2015-08-11 2015-08-11 Lens cap and camera system Pending JP2017037206A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108681184A (en) * 2018-07-09 2018-10-19 杨永顺 A kind of magnetic lens cap assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108681184A (en) * 2018-07-09 2018-10-19 杨永顺 A kind of magnetic lens cap assembly

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