JP2017201363A

JP2017201363A - Optical component movement mechanism and lens barrel

Info

Publication number: JP2017201363A
Application number: JP2016092935A
Authority: JP
Inventors: 芳史三谷; Yoshiji Mitani; 大西　智; Satoshi Onishi; 智大西
Original assignee: Konica Minolta Inc
Current assignee: Konica Minolta Inc
Priority date: 2016-05-06
Filing date: 2016-05-06
Publication date: 2017-11-09
Anticipated expiration: 2036-05-06
Also published as: JP6658280B2

Abstract

PROBLEM TO BE SOLVED: To provide an optical component movement mechanism and a lens barrel with which it is possible for a user to reliably obtain click feeling at the time a fit-in member gets into a recess, and to locate the fit-in member having gotten into the recess at the design position of an engaged member relative to an engaging member.SOLUTION: An optical component movement mechanism of the present invention comprises a first member holding an optical component, a second member movably coupled therewith, and a movement member for moving relative to the first and second members, the movement member being provided with an engaging member 5 having a recess 52 and an engaged member movably engaged with the engaging member 5, the recess 52 being provided with a bottom face 521 and a pair of inside faces 522, 523 crossing the bottom face 521. The engaged member is provided with a fit-in member 63 capable of getting in and out of the recess 52 upon rotary movement of the engaging member 5. The fit-in member 63 is formed so as to come in contact with the pair of inside faces 522, 523 but not touching the bottom face 521 when it gets into the recess 52.SELECTED DRAWING: Figure 14

Description

本発明は、光学部品を移動させる光学部品移動機構および光学部品移動機構を備えたレンズ鏡筒に関するものである。 The present invention relates to an optical component moving mechanism that moves an optical component and a lens barrel that includes the optical component moving mechanism.

従来から、光学部品を移動させる光学部品移動機構は、従来から広く知られている。例えば特許文献１に、光学部品のレンズシフト装置が開示されている。この光学部品のレンズシフト装置は、投射レンズを支持するレンズ支持部を、前記投射レンズの光軸方向と直交するシフト方向に移動させる機構部を備える。また、機構部は、雄ねじ部を有する係合部材と、前記雄ねじ部に螺合する雌ねじ部を有する被係合部材とを備えている。また、係合部材は、当該係合部材の軸方向の中央位置に、図２４に示すように雄ねじ部１００のねじ山１０１の一部を断面略円弧形状に切り欠いた凹部１０２を備える。一方、被係合部材は、凹部１０２に入り込み可能な球状の入り込み部材１０３を備えている。そして、係合部材が回動すると、被係合部材が係合部材に対して移動し、これにより、レンズ支持部がシフト方向に移動するようにしている。又、係合部材の回動に際して入り込み部材１０３が凹部１０２に入り込むことで使用者がクリック感を得、これにより、使用者は係合部材の軸方向における被係合部材の位置を知ることができるようにしている。 Conventionally, an optical component moving mechanism for moving an optical component has been widely known. For example, Patent Document 1 discloses a lens shift device for optical components. The lens shift device for an optical component includes a mechanism unit that moves a lens support unit that supports a projection lens in a shift direction orthogonal to the optical axis direction of the projection lens. Moreover, the mechanism part is provided with the engaging member which has an external thread part, and the to-be-engaged member which has the internal thread part screwed together in the said external thread part. Further, the engaging member includes a concave portion 102 at a central position in the axial direction of the engaging member, as shown in FIG. On the other hand, the engaged member includes a spherical entering member 103 that can enter the recess 102. When the engaging member rotates, the engaged member moves with respect to the engaging member, whereby the lens support portion moves in the shift direction. Further, when the engaging member rotates, the entering member 103 enters the recess 102, so that the user can feel a click, and thus the user can know the position of the engaged member in the axial direction of the engaging member. I can do it.

特開２００７−１０８４６０号公報JP 2007-108460 A

しかしながら、特許文献１では、凹部１０２が断面略円弧形状に形成され、かつ凹部１０２と入り込み部材１０３の相対位置を調整する機構を持たないため、凹部１０２を形成する際に入り込み部材１０３の寸法に対して加工誤差を生じると次のような問題が生じる。 However, in Patent Document 1, since the recess 102 is formed in a substantially arc shape in cross section and does not have a mechanism for adjusting the relative position of the recess 102 and the entry member 103, the size of the entry member 103 is set when the recess 102 is formed. On the other hand, when processing errors occur, the following problems occur.

例えば図２４に示すように凹部１０２の径が入り込み部材１０３の径よりも大きい場合には、凹部１０２に入り込んだ入り込み部材１０３が凹部１０２の内周面との間に隙間１０４が生じる。その結果、係合部材の回動に際して凹部１０２に入り込んだ入り込み部材１０３が、がたついてしまう。従って、例えば係合部材の軸方向における所定の位置で被係合部材の入り込み部材１０３が入り込むように設計しても、凹部１０２に入り込んだ入り込み部材１０３が係合部材に対する被係合部材の設計位置から位置ずれしてしまう。 For example, as shown in FIG. 24, when the diameter of the recess 102 is larger than the diameter of the entry member 103, a gap 104 is formed between the entry member 103 entering the recess 102 and the inner peripheral surface of the recess 102. As a result, the entry member 103 that has entered the recess 102 when the engagement member is rotated rattles. Therefore, for example, even if the engaging member 103 of the engaged member is designed to enter at a predetermined position in the axial direction of the engaging member, the entering member 103 that has entered the recess 102 is designed to be engaged with the engaging member. It will be displaced from the position.

その一方、凹部１０２の径が入り込み部材１０３の径に対してあまり小さくなると、入り込み部材１０３が凹部１０２に十分に入り込むことができなくなり、その結果、入り込み部材１０３が凹部１０２に入り込む際のクリック感を使用者が得難くなってしまう。また凹部１０２の加工誤差が生じると入り込み部材１０３が凹部１０２に入り込む位置が設計位置から位置ずれしてしまう。 On the other hand, if the diameter of the recess 102 is too small with respect to the diameter of the entering member 103, the entering member 103 cannot sufficiently enter the recess 102, and as a result, the click feeling when the entering member 103 enters the recess 102. It becomes difficult for the user to obtain. Further, when a machining error of the recess 102 occurs, the position where the entering member 103 enters the recess 102 is displaced from the design position.

本発明は、入り込み部材が凹部に入り込む際のクリック感を使用者が確実に得ることができ、しかも、凹部に入り込んだ入り込み部材が係合部材に対する被係合部材の設計位置に位置決めできる光学部品移動機構およびレンズ鏡筒の提供を目的とする。 The present invention is an optical component in which the user can surely obtain a click feeling when the entering member enters the recess, and the entering member entering the recess can be positioned at the design position of the engaged member relative to the engaging member. An object is to provide a moving mechanism and a lens barrel.

本発明者は、種々検討した結果、上記目的は、以下の本発明により達成されることを見出した。すなわち、本発明の一態様にかかる光学部品移動機構は、光学部品を保持した第１部材と、前記第１部材と移動可能に連結された第２部材と、前記第１部材を前記第２部材に対して移動させる移動部材とを備え、前記移動部材は、前記第１部材と前記第２部材との何れか一方に回動自在に保持された係合部材と、前記何れか他方に取り付けられ前記係合部材の回動に伴い前記係合部材に対して移動可能に前記係合部材に係合された被係合部材とを備え、前記係合部材は、前記係合部材の外周面から凹まされるように形成された凹部を備え、前記凹部は、底面と、前記底面と交差する一対の内側面とを備え、前記被係合部材は、前記係合部材の回動に際して前記凹部に出入り可能に形成された入り込み部材を備え、前記入り込み部材は、前記凹部に入り込んだ際に前記底面に非接触で、且つ、前記一対の内側面それぞれに当接するように形成されていることを特徴とする。 As a result of various studies, the present inventor has found that the above object is achieved by the present invention described below. That is, the optical component moving mechanism according to one aspect of the present invention includes a first member holding an optical component, a second member movably connected to the first member, and the first member as the second member. A moving member that moves relative to the engaging member, and the moving member is attached to one of the first member and the second member so as to be rotatable and to the other. And an engaged member engaged with the engaging member so as to be movable with respect to the engaging member as the engaging member rotates, and the engaging member extends from an outer peripheral surface of the engaging member. A recess formed to be recessed, the recess including a bottom surface and a pair of inner surfaces intersecting the bottom surface, and the engaged member enters and exits the recess when the engaging member rotates. A penetrating member formed so as to be capable of being formed, and Without contact with the bottom surface when entering into, and, characterized in that it is formed so as to contact the respective said pair of inner surfaces.

これによれば、入り込み部材は、凹部に入り込んだ際に底面に非接触で、且つ、一対の内側面それぞれに当接するように形成されているため、凹部の形成に際して多少の加工誤差が生じても、凹部に入り込んだ際の入り込み部材と凹部の内側面との間に隙間が生じ難く、係合部材の回動に際して凹部に入り込んだ入り込み部材のがたつきを防止できる。これにより、凹部に入り込んだ入り込み部材が係合部材に対する被係合部材の設計位置に位置決めできる。一方、入り込み部材を凹部に十分に入り込ませることができ、入り込み部材が凹部に入り込む際のクリック感を使用者が確実に得ることができる。 According to this, since the entering member is formed so as to be in non-contact with the bottom surface when it enters the recess and to contact with each of the pair of inner side surfaces, some processing error occurs when forming the recess. In addition, it is difficult for a gap to be formed between the entering member when entering the recess and the inner side surface of the recess, and rattling of the entering member entering the recess when the engaging member is rotated can be prevented. Thereby, the entering member that has entered the recess can be positioned at the design position of the engaged member with respect to the engaging member. On the other hand, the entering member can sufficiently enter the recess, and the user can surely obtain a click feeling when the entering member enters the recess.

他の一態様では、前記光学部品移動機構において、前記係合部材は、雄ねじ部を備え、前記凹部は、前記雄ねじ部の一部に形成されており、前記底面は、前記雄ねじ部のねじ山の頂部から所定の深さの位置に形成されており、前記一対の内側面は、前記雄ねじ部の径方向外側に行くに従い互いの距離が漸次大きくなる傾斜面からなり、前記被係合部材は、前記係合部材の回動に際して前記被係合部材が前記雄ねじ部の軸方向に移動し得るように、前記雄ねじ部に螺合した雌ねじ部を備え、前記入り込み部材は、当該入り込み部材の先端部に、前記凹部に入り込む半球状部を備え、前記雄ねじ部のねじ山の直径をＤ、前記一対の内側面が互いになす角度をθ、前記一対の内側面同士の距離が最小となる最小距離をＬ２、前記一対の内側面同士の距離が最大となる最大距離をＬ３、前記凹部の前記所定の深さをＬ４、前記半球状部の直径をｄとするとき、以下の式１、又は、式２を満たすように形成されていることを特徴とする。
{（Ｄ／２）^２−（Ｌ３／２）^２｝＋{（ｄ／２）^２−（Ｌ３／２）^２｝＞（Ｄ／２）＋（ｄ／２）−Ｌ４・・・（式１）。
（ｄ／２）／ｓｉｎ（θ／２）＞（ｄ／２）＋（Ｌ２／２）／ｔａｎ（θ／２）・・・（式２）。 In another aspect, in the optical component moving mechanism, the engagement member includes a male screw portion, the recess is formed in a part of the male screw portion, and the bottom surface is a thread of the male screw portion. The pair of inner side surfaces are inclined surfaces whose distances gradually increase toward the radially outer side of the male screw portion, and the engaged members are The engaging member includes a female screw portion screwed into the male screw portion so that the engaged member can move in the axial direction of the male screw portion when the engaging member rotates. A hemispherical portion that enters the concave portion, D is the diameter of the thread of the male screw portion, θ is the angle between the pair of inner side surfaces, and the minimum distance is the minimum distance between the pair of inner side surfaces L2, between the pair of inner surfaces When the maximum distance at which separation is maximum is L3, the predetermined depth of the concave portion is L4, and the diameter of the hemispherical portion is d, the following formula 1 or formula 2 is satisfied. It is characterized by that.
{(D / 2) ² − (L3 / 2) ² } + {(d / 2) ² − (L3 / 2) ² }> (D / 2) + (d / 2) −L4 (formula 1).
(D / 2) / sin (θ / 2)> (d / 2) + (L2 / 2) / tan (θ / 2) (Expression 2).

これによれば、入り込み部材と凹部とが、上記の式１又は式２を満たすように形成されることで、入り込み部材が凹部に入り込んだ際に、確実に、底面に非接触で、且つ、一対の内側面それぞれに当接するように凹部が入り込み部材に対して形成できる。 According to this, the entering member and the recessed portion are formed so as to satisfy the above formula 1 or 2, so that when the entering member enters the recessed portion, it is surely non-contact with the bottom surface, and A recessed part can be formed with respect to the entering member so as to contact each of the pair of inner side surfaces.

他の一態様では、前記光学部品移動機構において、前記何れか他方に対する前記第１方向における前記被係合部材の位置を調整する被係合部材位置調整部を、更に備えていることを特徴とする。 In another aspect, the optical component moving mechanism further includes an engaged member position adjusting unit that adjusts a position of the engaged member in the first direction with respect to any one of the other. To do.

これによれば、被係合部材位置調整部によって、入り込み部材が凹部に入り込んだ状態で、被係合部材を係合部材に対して所定の位置に配置できる。 According to this, the engaged member can be disposed at a predetermined position with respect to the engaging member in a state where the entering member enters the recess by the engaged member position adjusting portion.

他の一態様では、前記光学部品移動機構において、前記被係合部材は、固定ボルトを介して前記何れか他方に固定される固定部を備え、前記固定部は、前記固定ボルトを通すボルト挿通孔を備え、前記ボルト挿通孔は、前記第１方向に延された長孔形状に形成されており、前記被係合部材位置調整部は、前記ボルト挿通孔からなることを特徴とする。 In another aspect, in the optical component moving mechanism, the engaged member includes a fixing portion that is fixed to the other through a fixing bolt, and the fixing portion is a bolt insertion that passes the fixing bolt. The bolt insertion hole is formed in a long hole shape extending in the first direction, and the engaged member position adjusting portion is formed of the bolt insertion hole.

これによれば、被係合部材位置調整部の形成が容易になる。 According to this, formation of a to-be-engaged member position adjustment part becomes easy.

他の一態様では、前記光学部品移動機構において、前記被係合部材の前記入り込み部材と前記螺合した状態の前記係合部材の前記凹部との互いの位置を調整する凹部位置調整部を、更に備えていることを特徴とする。 In another aspect, in the optical component moving mechanism, a recess position adjustment unit that adjusts the position of the engagement member in the engaged member and the recess of the engagement member in the screwed state, Furthermore, it is characterized by providing.

これによれば、ボルト挿通孔が長孔形状に形成されているため、ボルト挿通孔に挿通した固定ボルトに対して被係合部材をボルト挿通孔の長手方向に移動できる。これにより、固定ボルトを介して被係合部材を第１部材又は第２部材に取り付ける際に、係合部材に対する被係合部材の位置を調整でき、係合部材の凹部と入り込み部材とを位置合わせできる。 According to this, since the bolt insertion hole is formed in a long hole shape, the engaged member can be moved in the longitudinal direction of the bolt insertion hole with respect to the fixing bolt inserted into the bolt insertion hole. Thereby, when attaching a to-be-engaged member to a 1st member or a 2nd member via a fixing bolt, the position of the to-be-engaged member with respect to an engagement member can be adjusted, and the recessed part of an engagement member and a penetration member can be positioned. Can be combined.

これによれば、凹部位置調整部によって、被係合部材と係合部材とが係合した状態で、被係合部材の入り込み部材と係合部材の凹部との互いの位置を調整でき、係合部材に対する被係合部材の位置を調整でき、係合部材の凹部と入り込み部材とを位置合わせできる。 According to this, the position of the entering member of the engaged member and the recessed portion of the engaging member can be adjusted by the recess position adjusting unit in a state where the engaged member and the engaging member are engaged. The position of the engaged member relative to the combined member can be adjusted, and the recess of the engaging member and the entering member can be aligned.

他の一態様では、前記光学部品移動機構において、前記係合部材は、雄ねじ部を備え、前記凹部は、前記雄ねじ部の一部に形成されており、前記被係合部材は、前記何れか他方に固定的に取り付けられた被係合部材本体と、前記雄ねじに螺合する雌ねじ部を有する筒状の筒体とを備え、前記筒体は、前記被係合部材本体に回動可能に、且つ、前記筒体の軸方向に移動可能に保持され、前記凹部位置調整部は、前記筒体からなることを特徴とする。 In another aspect, in the optical component moving mechanism, the engagement member includes a male screw portion, the recess is formed in a part of the male screw portion, and the engaged member is any one of the above An engaged member main body fixedly attached to the other, and a cylindrical tubular body having a female screw portion screwed to the male screw, the cylindrical body being rotatable relative to the engaged member main body And it is hold | maintained so that the movement to the axial direction of the said cylinder is possible, and the said recessed part position adjustment part consists of the said cylinder.

これによれば、筒体が被係合部材本体に保持される際に、係合部材と螺合した状態で、回動し、或いは筒体の軸方向に移動することで、係合部材の凹部の位置を調整できる。これにより、係合部材の凹部と入り込み部材とを容易に位置合わせできる。 According to this, when the cylinder is held by the engaged member main body, the cylinder is rotated or moved in the axial direction of the cylinder while being engaged with the engagement member. The position of the recess can be adjusted. Thereby, the recessed part of an engaging member and a penetration member can be aligned easily.

他の一態様では、前記光学部品移動機構において、前記被係合部材は、前記係合部材に対して前記光学部品の光軸方向と直交する方向に移動することを特徴とする。 In another aspect, in the optical component moving mechanism, the engaged member moves in a direction perpendicular to the optical axis direction of the optical component with respect to the engaging member.

これによれば、例えば使用者が撮像における焦点のあう範囲を適宜選択して撮影できる。 According to this, for example, the user can appropriately select a focus range in imaging and can shoot.

他の一態様では、前記光学部品移動機構において、前記係合部材は、前記係合部材を手動操作するための手動操作部を備えていることを特徴とする。 In another aspect, in the optical component moving mechanism, the engagement member includes a manual operation unit for manually operating the engagement member.

これによれば、使用者が確実にクリック感を得ることができ、光学部品移動機構は手動操作に好適なものになる。 According to this, the user can surely obtain a click feeling, and the optical component moving mechanism is suitable for manual operation.

他の一態様では、前記光学部品移動機構において、前記係合部材は、雄ねじ部を備え、前記凹部は、前記雄ねじ部の軸方向で隣接する２つのネジ山のうちの一つにのみ形成されていることを特徴とする。 In another aspect, in the optical component moving mechanism, the engagement member includes a male screw portion, and the concave portion is formed only in one of two screw threads adjacent in the axial direction of the male screw portion. It is characterized by.

これによれば、入り込み部材が入り込む位置を正確にきめることができる。 According to this, the position where the entering member enters can be determined accurately.

他の一態様では、前記光学部品移動機構において、前記被係合部材は、前記何れか他方に固定的に取り付けられた被係合部材本体と、前記入り込み部材を付勢する付勢部材とを備え、前記入り込み部材は、前記係合部材に遠ざかる方向及び近づく方向に移動可能に前記被係合部材本体に保持され、前記付勢部材は、前記入り込み部材を前記近づく方向に付勢するように、前記被係合部材本体に保持されていることを特徴とする。 In another aspect, in the optical component moving mechanism, the engaged member includes an engaged member main body fixedly attached to one of the other and a biasing member that biases the entering member. The engaging member is held by the engaged member main body so as to be movable away from and closer to the engaging member, and the biasing member biases the entering member in the approaching direction. And being held by the engaged member main body.

これによれば、凹部と入り込み部材とが合致すれば付勢部材の付勢力によって、凹部に入り込み部材を確実に入り込ませ、使用者が確実にクリック感を得ることができる。 According to this, if a recessed part and a penetration member agree | coincide, with a urging | biasing force of a urging member, a penetration member will be made to enter reliably, and a user can get a click feeling reliably.

本発明のレンズ鏡筒は、上述の何れかの光学部品移動機構を備えていることを特徴とする。 The lens barrel of the present invention includes any one of the above-described optical component moving mechanisms.

これによれば、凹部の形成に際して多少の加工誤差が生じても、凹部に入り込んだ際の入り込み部材と凹部の内側面との間に隙間が生じ難くでき、係合部材の回動に際して凹部に入り込んだ入り込み部材のがたつきを防止できる。これにより、凹部に入り込んだ入り込み部材が係合部材に対する被係合部材の設計位置に配置される。一方、入り込み部材を凹部に十分に入り込ませることができ、入り込み部材が凹部に入り込む際のクリック感を使用者が確実に得ることができる。 According to this, even if a slight processing error occurs during the formation of the recess, it is difficult for a gap to be formed between the entry member when entering the recess and the inner side surface of the recess, and the recess is formed when the engagement member is rotated. Shaking of the entering member can be prevented. Thereby, the entering member that has entered the recess is disposed at the design position of the engaged member with respect to the engaging member. On the other hand, the entering member can sufficiently enter the recess, and the user can surely obtain a click feeling when the entering member enters the recess.

本発明の光学部品移動機構およびレンズ鏡筒は、入り込み部材が凹部に入り込む際のクリック感を使用者が確実に得ることができ、しかも、凹部に入り込んだ入り込み部材が係合部材に対する被係合部材を設計位置に位置決めできる。 With the optical component moving mechanism and the lens barrel of the present invention, the user can reliably obtain a click feeling when the entering member enters the recess, and the entering member entering the recess is engaged with the engaging member. The member can be positioned at the design position.

本発明の一実施の形態のレンズ鏡筒の分解斜視図である。It is a disassembled perspective view of the lens barrel of one embodiment of the present invention. 図１のレンズ鏡筒の正面図である。It is a front view of the lens barrel of FIG. 図１のレンズ鏡筒の側面図である。It is a side view of the lens barrel of FIG. 図２のＩＶ−ＩＶ線断面図である。It is the IV-IV sectional view taken on the line of FIG. 図１のレンズ鏡筒が有する連結部材、取付部材、取付板、係合部材及び被係合部材の分解斜視図である。FIG. 2 is an exploded perspective view of a connecting member, an attaching member, an attaching plate, an engaging member, and an engaged member that the lens barrel of FIG. 1 has. 連結部材と取付部材とを、係合部材及び被係合部材によって連結した状態の正面図である。It is a front view of the state which connected the connection member and the attachment member with the engaging member and the to-be-engaged member. 図６のＶＩ−ＶＩ線断面図である。It is the VI-VI sectional view taken on the line of FIG. 図７の状態を斜め上方から見た斜視図である。It is the perspective view which looked at the state of FIG. 7 from diagonally upward. 係合部材と被係合部材との分解斜視図である。It is a disassembled perspective view of an engaging member and a to-be-engaged member. 係合部材の正面図である。It is a front view of an engaging member. （ａ）は、被係合部材の正面図、（ｂ）は、（ａ）の平面図、（ｃ）は、（ａ）の右側面図、（ｄ）は、（ｂ）のＸ−Ｘ線断面図、（ｅ）は、（ｃ）のＸＩ−ＸＩ線断面図である。(A) is a front view of an engaged member, (b) is a plan view of (a), (c) is a right side view of (a), and (d) is an XX of (b). Line sectional drawing, (e) is the XI-XI sectional view taken on the line of (c). 係合部材と被係合部材とが係合された状態の正面図である。It is a front view of the state in which the engaging member and the to-be-engaged member were engaged. 図１２の状態における係合部材及び被係合部材の一部を断面にした正面図である。It is the front view which made the engagement member in the state of FIG. 12, and some engaged members into the cross section. 係合部材が有する凹部に、被係合部材が有する入り込み部材が入り込んだ状態の断面図である。It is sectional drawing of the state which the penetration member which a to-be-engaged member entered in the recessed part which an engagement member has. （ａ）は、取付部材の斜視図、（ｂ）は、（ａ）の正面図、（ｃ）は、（ａ）の側面図である。(A) is a perspective view of an attachment member, (b) is a front view of (a), and (c) is a side view of (a). （ａ）は、レンズ鏡筒が有する鏡筒本体を、取付部材に対して第１方向の一方側に移動させた状態の側面図、（ｂ）は、（ａ）の状態の断面図である。(A) is the side view of the state which moved the lens-barrel main body which a lens barrel has to the one side of a 1st direction with respect to an attachment member, (b) is sectional drawing of the state of (a). . 図１６（ａ）の状態における係合部材と被係合部材との位置関係を表した正面図、（ｂ）は、（ａ）の斜視図である。The front view showing the positional relationship of the engaging member and the engaged member in the state of Fig.16 (a), (b) is a perspective view of (a). （ａ）は、鏡筒本体を取付部材に対して第１方向の他方側に移動させた状態の側面図、（ｂ）は、（ａ）の状態の断面図である。(A) is a side view of the state which moved the lens-barrel main body to the other side of the 1st direction with respect to the attachment member, (b) is sectional drawing of the state of (a). 図１８（ａ）の状態における係合部材と被係合部材との位置関係を表した正面図、（ｂ）は、（ａ）の斜視図である。The front view showing the positional relationship of the engaging member and the engaged member in the state of Fig.18 (a), (b) is a perspective view of (a). 係合部材の凹部と被係合部材の入り込み部材とが位置ずれを起こした状態を説明する正面図である。It is a front view explaining the state which caused the position shift with the recessed part of the engaging member, and the entering member of the to-be-engaged member. 図２０のＸＸＩ−ＸＸＩ線断面図である。It is the XXI-XXI sectional view taken on the line of FIG. 被係合部材が鏡筒本体に対して位置ずれを起こした状態を説明する正面図である。It is a front view explaining the state to which the to-be-engaged member caused position shift with respect to the lens-barrel main body. 図２２のＸＸＩＩＩ−ＸＸＩＩＩ線断面図である。It is XXIII-XXIII sectional view taken on the line of FIG. 従来例の要部の断面図である。It is sectional drawing of the principal part of a prior art example.

以下、本発明を実施するための形態について、図面を参照しながら詳細に説明する。図１は、本発明のレンズ鏡筒の分解斜視図、図２は、図１の正面図、図３は、図１の側面図、図４は、図２のＩＶ−ＩＶ線断面図である。尚、図中のＺ１−Ｚ２が光軸方向を示し、また、Ｚ１側が対物側を示し、Ｚ２側が像側を示すものとする。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. 1 is an exploded perspective view of a lens barrel of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is a sectional view taken along line IV-IV of FIG. . In the drawing, Z1-Z2 indicates the optical axis direction, the Z1 side indicates the objective side, and the Z2 side indicates the image side.

本実施形態のレンズ鏡筒１は、鏡筒本体（第１部材）２と、鏡筒本体２に移動可能に連結された取付部材（第２部材）３と、鏡筒本体２に対して取付部材３を光軸方向（Ｚ１−Ｚ２）と直交する第１方向（Ｘ１−Ｘ２方向）に移動させる移動部材５、６とを備えている。 The lens barrel 1 of the present embodiment is attached to the barrel main body (first member) 2, an attachment member (second member) 3 movably connected to the barrel main body 2, and the barrel main body 2. Moving members 5 and 6 are provided for moving the member 3 in a first direction (X1-X2 direction) orthogonal to the optical axis direction (Z1-Z2).

鏡筒本体２は、この実施形態では、レンズ保持部２１と、レンズ保持部２１の像側（Ｚ２側）に配置された連結部材４とを備えている。 In this embodiment, the lens barrel body 2 includes a lens holding portion 21 and a connecting member 4 disposed on the image side (Z2 side) of the lens holding portion 21.

レンズ保持部２１は、図４に示すように、内部に、第１レンズ群２２と、第１レンズ群２２の像側に配置された第２レンズ群２３とを備えている。これらの第１レンズ群２２及び第２レンズ群２３は、１又は複数のレンズから構成されている。 As shown in FIG. 4, the lens holding unit 21 includes a first lens group 22 and a second lens group 23 disposed on the image side of the first lens group 22. The first lens group 22 and the second lens group 23 are composed of one or a plurality of lenses.

連結部材４は、取付部材３を移動可能に連結するためのもので、この実施形態では、図５、図６に示すように、連結部材４は、筒状部４１と、筒状部４１の像側（Ｚ２側）に形成された板状部４２とを備えている。 The connection member 4 is for movably connecting the attachment member 3. In this embodiment, as shown in FIGS. 5 and 6, the connection member 4 includes a cylindrical portion 41 and a cylindrical portion 41. And a plate-like portion 42 formed on the image side (Z2 side).

筒状部４１は、後述する移動部材の係合部材５を保持する係合部材保持部４１１が形成されている。この係合部材保持部４１１は、筒状部４１の壁面を貫通する貫通孔４１２を備えている。 The cylindrical portion 41 is formed with an engaging member holding portion 411 that holds an engaging member 5 of a moving member described later. The engaging member holding portion 411 includes a through hole 412 that penetrates the wall surface of the tubular portion 41.

また、筒状部４１は、内部に、後述の移動部材の被係合部材６の第１主被当て止め部６４１ｄと第２主被当て止め部６４１ｅをそれぞれ当て止めする第１主当て止め部４３１と第２主当て止め部４３２と、第１副被当て止め部６２３と第２副被当て止め部６５２ｂとをそれぞれ当て止めする第１副当て止め部４１３と第２副当て止め部４１４とを備えている（図６参照）。 Further, the cylindrical portion 41 includes a first main contact stop portion that holds a first main contact stop portion 641d and a second main contact stop portion 641e of the engaged member 6 of the moving member described later. 431, the second main contact stopper 432, the first sub contact stopper 623, and the second sub contact stopper 652b, the first sub stopper 413 and the second sub stopper 414, respectively. (Refer to FIG. 6).

第１主当て止め部４３１と第２主当て止め部４３２、および第１副当て止め部４１３と第２副当て止め部４１４とは、それぞれ、図６に示すように筒状部４１の中心Ｏを通り光軸方向及び第１方向（Ｘ１−Ｘ２方向）に直交する第２方向（Ｙ１−Ｙ２方向）に延される第２方向線Ｐ１に対して略同じ距離になる位置に形成されている。 As shown in FIG. 6, the first main stopper 431 and the second main stopper 432, and the first auxiliary stopper 413 and the second auxiliary stopper 414 respectively have a center O of the cylindrical portion 41. Are formed at positions that are substantially the same distance from the second direction line P1 extending in the second direction (Y1-Y2 direction) orthogonal to the optical axis direction and the first direction (X1-X2 direction). .

板状部４２の中心部には、図５、図６に示すように光を通す光導通孔４２０が形成されている。又、板状部４２には、後述の移動部材の被係合部材６を第１方向（Ｘ１−Ｘ２方向）に移動可能に受容する略矩形状の被係合部材受容孔４３を備えている。 As shown in FIGS. 5 and 6, a light conduction hole 420 through which light passes is formed at the center of the plate-like portion 42. Further, the plate-like portion 42 is provided with a substantially rectangular engaged member receiving hole 43 for receiving an engaged member 6 of a moving member described later so as to be movable in a first direction (X1-X2 direction). .

又、図７、図８に示すように板状部４２には、像側に突出する第１突出片４２１及び第２突出片４２２が形成されている。これらの突出片４２１、４２２は、光導通孔４２０を挟んで、互いに平行に、第１方向に沿って延設されている。 As shown in FIGS. 7 and 8, the plate-like portion 42 is formed with a first protruding piece 421 and a second protruding piece 422 that protrude toward the image side. These projecting pieces 421 and 422 are extended along the first direction in parallel with each other with the photoconductive hole 420 interposed therebetween.

第１突出片４２１の内面（厚さ方向の他方面）は、後述の移動部材の被係合部材６の延在部６４２と対向する延在部対向壁４２１ａをなしている。又、延在部対向壁４２１ａは、互いに直交する２つの直交面から構成されている。 An inner surface (the other surface in the thickness direction) of the first projecting piece 421 forms an extension portion facing wall 421a that faces an extension portion 642 of the engaged member 6 of the moving member described later. The extending portion facing wall 421a is composed of two orthogonal surfaces that are orthogonal to each other.

一方、第１突出片４２１の外面（厚さ方向の一方側面）は、取付部材３をガイドする第１ガイド部４２１ｂをなしている。 On the other hand, the outer surface (one side surface in the thickness direction) of the first projecting piece 421 forms a first guide portion 421 b that guides the attachment member 3.

第２突出片４２２の外面は、第１ガイド部４２１ｂと平行に形成されており、取付部材３をガイドする第２ガイド部４２２ｂをなしている。 The outer surface of the second projecting piece 422 is formed in parallel with the first guide part 421b and forms a second guide part 422b that guides the attachment member 3.

以上のように形成された連結部材４は、取付板４０を介してレンズ保持部２１に固定的に取り付けられている。詳しくは、図５に示すように、取付板４０は、中心部に光導通孔４０ａを備えた矩形板状のもので、連結部材４の対物側（Ｚ１側）の端面に、ボルト４０１によって取り付けられている。尚、この実施形態では、光導通孔４０ａを区画形成した内壁面は、凹凸状に形成されている。又、その連結部材４に取り付けられた取付板４０が、図１に示すようにレンズ保持部２１における像側（Ｚ２側）の端面にボルト４０２によって取り付けられている。 The connecting member 4 formed as described above is fixedly attached to the lens holding portion 21 via the attachment plate 40. Specifically, as shown in FIG. 5, the mounting plate 40 is a rectangular plate having a light conducting hole 40 a in the center, and is attached to the end surface on the objective side (Z1 side) of the connecting member 4 with a bolt 401. It has been. In this embodiment, the inner wall surface in which the photoconductive hole 40a is formed is formed in an uneven shape. A mounting plate 40 attached to the connecting member 4 is attached to the end face on the image side (Z2 side) of the lens holding portion 21 with a bolt 402 as shown in FIG.

次に、取付部材３について説明する。取付部材３は、このレンズ鏡筒１をカメラ本体等の被取付部材２００（図２中に２点鎖線で示す）に取り付けるためのもので、この実施形態では、取付部材３は、板状体から構成されており、中央に光を通す光導通孔３１を備えている。 Next, the attachment member 3 will be described. The attachment member 3 is for attaching the lens barrel 1 to an attachment member 200 (shown by a two-dot chain line in FIG. 2) such as a camera body. In this embodiment, the attachment member 3 is a plate-like body. And is provided with a light conduction hole 31 through which light passes.

また、取付部材３は、図８に示すように像側（Ｚ２側）の一方端面における光導通孔３１の外周縁部に、被取付部材に取り外し自在に取り付ける取付部３２を備えている。 Further, as shown in FIG. 8, the attachment member 3 includes an attachment portion 32 that is detachably attached to the attached member on the outer peripheral edge portion of the photoconductive hole 31 on one end face on the image side (Z2 side).

また、取付部材３は、図５に示すように、対物側（Ｚ１側）の他方端面に、連結部材４の第１ガイド部４２１ｂと第２ガイド部４２２ｂとのそれぞれにガイドされる第１被ガイド部３２１及び第２被ガイド部３２２と、後述の移動部材の被係合部材を固定するための被係合部材固定部３３とを備えている。 Further, as shown in FIG. 5, the mounting member 3 is guided by the first guide portion 421b and the second guide portion 422b of the connecting member 4 on the other end surface on the objective side (Z1 side). A guide portion 321 and a second guided portion 322, and an engaged member fixing portion 33 for fixing an engaged member of a moving member described later are provided.

この実施形態では、第１被ガイド部３２１は、取付部材３とは別体からなる細長状の被ガイド片の一部に形成されており、被ガイド片が取付部材３に取り付けられることにより形成されている。 In this embodiment, the first guided portion 321 is formed on a part of an elongated guided piece that is separate from the attachment member 3, and is formed by attaching the guided piece to the attachment member 3. Has been.

被係合部材固定部３３は、この実施形態では、図５に示すように第１被ガイド部３２１と光導通孔３１との間に、対物側の端面から所定の深さで矩形状に凹設された被係合部材嵌合部３３１と、被係合部材嵌合部３３１に形成された２つの固定ボルト用雌ネジ部３３２とを備えている。 In this embodiment, the engaged member fixing portion 33 is recessed between the first guided portion 321 and the light conducting hole 31 in a rectangular shape with a predetermined depth from the end surface on the objective side, as shown in FIG. An engaged member fitting portion 331 provided and two fixing bolt female screw portions 332 formed on the engaged member fitting portion 331 are provided.

次に、移動部材５、６について説明する。移動部材は、鏡筒本体２に取り付けられた係合部材５と、取付部材３に保持された被係合部材６とを備えている。 Next, the moving members 5 and 6 will be described. The moving member includes an engaging member 5 attached to the lens barrel body 2 and an engaged member 6 held by the attaching member 3.

係合部材５は、図９、図１０に示すように、ボルト状のものから構成されており、係合部材５の一方端側に形成された雄ねじ部５１と、雄ねじ部５１の一部に形成された凹部５２と、係合部材５の他方端側に形成された手動操作部５３と、雄ねじ部５１と手動操作部５３との間に形成された係合部材被保持部５４とを備えている。 As shown in FIGS. 9 and 10, the engaging member 5 is constituted by a bolt-shaped member, and has a male screw part 51 formed on one end side of the engaging member 5 and a part of the male screw part 51. A recessed portion 52 formed, a manual operation portion 53 formed on the other end side of the engagement member 5, and an engagement member held portion 54 formed between the male screw portion 51 and the manual operation portion 53 are provided. ing.

凹部５２は、この実施形態では、雄ねじ部５１の軸方向の略中央部において、雄ねじ部５１の軸方向で隣接する２つのネジ山５１１のうちの一つに形成されている。又、凹部５２は、図１４に示すように底面５２１と、底面５２１の一方端側に形成された第１内側面５２２と、底面５２１の他方端側に第１内側面５２２と一対をなすように形成された第２内側面５２３とを備えている。即ち、凹部５２は、底面５２１と、底面５２１と所定の角度で交差する一対の内側面５２２、５２３とを備えている。 In this embodiment, the concave portion 52 is formed in one of two screw threads 511 adjacent to each other in the axial direction of the male screw portion 51 at a substantially central portion in the axial direction of the male screw portion 51. As shown in FIG. 14, the recess 52 forms a pair with the bottom surface 521, the first inner side surface 522 formed on one end side of the bottom surface 521, and the first inner side surface 522 on the other end side of the bottom surface 521. And a second inner side surface 523 formed on the surface. That is, the recess 52 includes a bottom surface 521 and a pair of inner side surfaces 522 and 523 that intersect the bottom surface 521 at a predetermined angle.

底面５２１は、雄ねじ部５１のネジ山５１１から所定の深さＬ４で、雄ねじ部５１の軸方向と直交する方向に所定の幅Ｌ２で形成されている。 The bottom surface 521 is formed with a predetermined depth L4 from the thread 511 of the male screw portion 51 and a predetermined width L2 in a direction orthogonal to the axial direction of the male screw portion 51.

また、第１内側面５２２は、雄ねじ部５１の軸心Ｏ１から底面５２１を２等分するように延ばされた延長線Ｐ２に対して所定の角度θ／２をなす傾斜面に形成されている。 Further, the first inner side surface 522 is formed as an inclined surface that forms a predetermined angle θ / 2 with respect to an extension line P2 that extends so as to bisect the bottom surface 521 from the axis O1 of the male screw portion 51. Yes.

第２内側面５２３は、前記延長線Ｐ２に対して第１内側面５２２と対称になるように形成されている。即ち、第１内側面５２２と第２内側面５２２とは、互いに角度θをなし、第１内側面５２２と第２内側面５２３との互いの距離が底面５２１側で最も小さい最小距離Ｌ２になっており、雄ねじ部５１の径方向外側に行くに従い互いの距離が漸次大きくなってネジ山５１１の頂部で最も大きい最大距離Ｌ３になるように形成されている。 The second inner surface 523 is formed to be symmetric with the first inner surface 522 with respect to the extension line P2. That is, the first inner surface 522 and the second inner surface 522 form an angle θ with each other, and the distance between the first inner surface 522 and the second inner surface 523 is the smallest minimum distance L2 on the bottom surface 521 side. The distance between the male threads 51 gradually increases toward the outer side in the radial direction, and the maximum distance L3 is the largest at the top of the thread 511.

尚、第１内側面５２２と第２内側面５２３とは、傾斜面に形成される形態のものに限らず、例えば凹部５２の内側に膨らむ円弧面でも良く、適宜変更できる。 The first inner side surface 522 and the second inner side surface 523 are not limited to the shape formed in the inclined surface, and may be, for example, an arc surface that swells inside the recess 52 and can be changed as appropriate.

図９、図１０に戻り、手動操作部５３は、操作者の手で係合部材５が回動操作される部分で、円柱形状に形成されている。 Returning to FIGS. 9 and 10, the manual operation portion 53 is a portion where the engaging member 5 is rotated by the operator's hand, and is formed in a cylindrical shape.

係合部材被保持部５４は、連結部材４の係合部材保持部４１１に固定的に保持される部分で、図６に示すように雄ねじ部５１が係合部材保持部４１１の貫通孔４１１ａに挿通されることで係合部材被保持部５４が係合部材保持部４１１に配置され、この状態で、係合部材被保持部５４が係合部材保持部４１１に固定的に保持されている。係合部材被保持部５４と雄ねじ部５１は回動自在であり、結果、雄ねじ部５１と連結部材４は回動自在となる。又、この状態で、雄ねじ部５１が連結部材４の筒状部４１の内側に配置され、手動操作部５３が筒状部４１の外側に突出している。 The engaging member held portion 54 is a portion that is fixedly held by the engaging member holding portion 411 of the connecting member 4, and the male screw portion 51 is inserted into the through hole 411 a of the engaging member holding portion 411 as shown in FIG. 6. By being inserted, the engaging member held portion 54 is disposed in the engaging member holding portion 411, and in this state, the engaging member held portion 54 is fixedly held by the engaging member holding portion 411. The engaging member held portion 54 and the male screw portion 51 are rotatable, and as a result, the male screw portion 51 and the connecting member 4 are rotatable. In this state, the male screw portion 51 is disposed inside the tubular portion 41 of the connecting member 4, and the manual operation portion 53 protrudes outside the tubular portion 41.

次に、被係合部材６について説明する。被係合部材６は、図９に示すように被係合部材本体６１と、被係合部材本体６１に保持された筒体（凹部位置調整部）６２と、係合部材５の凹部５２に出入り自在に入り込む入り込み部材６３とを備えている。 Next, the engaged member 6 will be described. As shown in FIG. 9, the engaged member 6 includes an engaged member main body 61, a cylindrical body (concave position adjusting portion) 62 held by the engaged member main body 61, and a concave portion 52 of the engaging member 5. An intrusion member 63 that enters and exits freely is provided.

被係合部材本体６１は、図９、図１１に示すように、一方端部に、取付部材３に取り付けられる固定部６４１を備えている。 As shown in FIGS. 9 and 11, the engaged member main body 61 includes a fixing portion 641 attached to the attachment member 3 at one end.

固定部６４１は、被係合部材固定部３３の被係合部材嵌合部３３１に嵌合される被嵌合部６４１ａと、被嵌合部６４１ａに形成されたボルト挿通孔（被係合部材位置調整部）６４１ｃ（図９に図示）と、ボルト挿通孔６４１ｃに挿通され被係合部材固定部３３の固定ボルト用雌ネジ部３３２に螺合する固定ボルト６４１ｂと連結部材４の第１主当て止め部４３１を当て止めする第１主被当て止め部６４１ｄと連結部材４の第２主当て止め部４３２を当て止めする第２主被当て止め部６４１ｅを備えている。 The fixed portion 641 includes a fitted portion 641a fitted to the engaged member fitting portion 331 of the engaged member fixing portion 33, and a bolt insertion hole (engaged member) formed in the fitted portion 641a. (Position adjusting portion) 641c (shown in FIG. 9), a fixing bolt 641b inserted into the bolt insertion hole 641c and screwed into the fixing bolt female screw portion 332 of the engaged member fixing portion 33, and the first main of the connecting member 4 A first main contact stop 641d that stops the contact stop 431 and a second main contact stop 641e that stops the second main contact stop 432 of the connecting member 4 are provided.

ボルト挿通孔６４１ｃは、この実施形態では、図９に示すように第１方向（Ｘ１−Ｘ２方向）に長い長孔に形成されている。 In this embodiment, the bolt insertion hole 641c is formed as a long hole long in the first direction (X1-X2 direction) as shown in FIG.

また、被係合部材本体６１は、他方端部６５に、筒体６２を保持する筒体保持部６５１と、後述する筒体６２のつば部６２２に対向する筒体対向部６５２ａと、連結部材４の第２副当て止め部４１４に当て止めされる第２副被当て止め部６５２ｂと、入り込み部材６３を保持した入り込み部材保持部６５３とを備えている。 Further, the engaged member main body 61 includes, at the other end portion 65, a cylindrical body holding portion 651 that holds the cylindrical body 62, a cylindrical body facing portion 652a that faces a flange portion 622 of the cylindrical body 62 described later, and a connecting member. A second sub-abutting stop portion 652 b that is held by the fourth second sub-holding portion 414, and an entry member holding portion 653 that holds the entry member 63.

筒体保持部６５１は、筒体６２を受容する筒体受容孔６５１ａと、筒体受容孔６５１ａに受容された筒体６２を固定する筒体固定用ネジ部材６５１ｂとを備えている。 The cylindrical body holding portion 651 includes a cylindrical body receiving hole 651a that receives the cylindrical body 62, and a cylindrical body fixing screw member 651b that fixes the cylindrical body 62 received in the cylindrical body receiving hole 651a.

筒体受容孔６５１ａは、第１方向（Ｘ１−Ｘ２方向）に沿って貫通するように断面円形状に形成されている。筒体固定用ネジ部材６５１ｂは、筒体受容孔６５１ａの軸方向の略中央部に、筒体固定用ネジ部材６５１ｂの先端が出没可能に配置されている。 The cylindrical body receiving hole 651a is formed in a circular cross section so as to penetrate along the first direction (X1-X2 direction). The cylinder fixing screw member 651b is disposed at a substantially central portion in the axial direction of the cylinder receiving hole 651a so that the tip of the cylinder fixing screw member 651b can be projected and retracted.

第２副被当て止め部６５２ｂは、連結部材４の第２副当て止め部４１４と対向するように（図６参照）Ｘ２側を向いている。 The second auxiliary stopper 652b faces the X2 side so as to face the second auxiliary stopper 414 of the connecting member 4 (see FIG. 6).

入り込み部材保持部６５３は、筒体受容孔６５１ａのＸ２側に、筒体受容孔６５１ａの軸方向と直交する方向（Ｙ１−Ｙ２方向）に明けられた断面円形状の孔からなる。 The intrusion member holding portion 653 is formed of a hole having a circular cross section that is opened in the direction (Y1-Y2 direction) perpendicular to the axial direction of the cylinder receiving hole 651a on the X2 side of the cylinder receiving hole 651a.

また、被係合部材本体６１は、固定部６４１と筒体保持部６５１との間に、第１方向側（Ｘ１−Ｘ２側）に延在された延在部６４２を備えている。 Further, the engaged member main body 61 includes an extending portion 642 that extends between the fixed portion 641 and the cylindrical body holding portion 651 on the first direction side (X1-X2 side).

延在部６４２は、第１方向における固定部６４１の両側に突設されている。又、この実施形態では、延在部６４２は、互いに直交する平面からなる第１延在部６４２ｂと第２延在部６４２ｂとを備えている。 The extending part 642 protrudes from both sides of the fixed part 641 in the first direction. Further, in this embodiment, the extending portion 642 includes a first extending portion 642b and a second extending portion 642b that are planes orthogonal to each other.

筒体６２は、内周に、係合部材５の雄ねじ部５１に螺合する雌ねじ部（被係合部）６２１を備えている。また、つば部６２２を備え、つば部６２２を構成する面のうち雌ねじ部６２１と反対側に第１副被当て止め部６２３を備えている。 The cylindrical body 62 includes an internal thread portion (engaged portion) 621 that is screwed into the external thread portion 51 of the engagement member 5 on the inner periphery. In addition, a collar portion 622 is provided, and a first sub-restraining stop portion 623 is provided on the surface of the collar portion 622 opposite to the female screw portion 621.

第１副被当て止め部６２３は、連結部材４の第１副当て止め部４１３と対向するように（図６参照）Ｘ１側を向いている。そして、この筒体６２は、被係合部材本体６１の筒体保持部６５１の筒体受容孔６５１ａに、回動自在に、且つ筒体６２の軸方向、すなわち第１方向（Ｘ１−Ｘ２方向）に移動可能に保持され、筒体固定用ネジ部材６５１ｂによって固定状態にされている。この筒体６２が被係合部材本体６１の筒体保持部６５１に保持されることにより、被係合部材６は、一方端部に固定部６４１を備え、他方端部６５に係合部材５と係合される被係合部としての雌ネジ部６２１を備え、固定部６４１と雌ネジ部（被係合部）６２１との間に、第１方向側（Ｘ１−Ｘ２側）に延在された延在部６４２を備えたものとされている。 The first sub-cover stop 623 faces the X1 side so as to face the first sub-stop 413 of the connecting member 4 (see FIG. 6). The cylindrical body 62 is rotatable in the cylindrical body receiving hole 651a of the cylindrical body holding portion 651 of the engaged member main body 61 and is axially movable, that is, in the first direction (X1-X2 direction). ) Is movably held and is fixed by a cylinder fixing screw member 651b. By holding the cylindrical body 62 on the cylindrical body holding portion 651 of the engaged member main body 61, the engaged member 6 includes a fixing portion 641 at one end and the engaging member 5 at the other end 65. And a female screw part 621 as an engaged part to be engaged, and extends between the fixed part 641 and the female screw part (engaged part) 621 in the first direction side (X1-X2 side). The extended portion 642 is provided.

入り込み部材６３は、この実施形態では、球体からなる。この入り込み部材６３は、図１４に示すように、係合部材５の雄ねじ部５１のねじ山の直径をＤ、一対の内側面５２２、５２３が互いになす角度をθ、一対の内側面５２２、５２３同士の距離が最小となる、底面５２１の長さからなる最小距離Ｌ２、一対の内側面５２２、５２３同士の距離が最大となる最大距離をＬ３、凹部５２の前記所定の深さをＬ４、入り込み部材６３の直径をｄとするとき、以下の式１、又は、式２を満たすように形成されている。式１、又は、式２を満たすように形成されることで、入り込み部材６３が、凹部５２に入り込んだ際に底面５２１に非接触で、且つ、一対の内側面５２２、５２３それぞれに当接するように形成されている。 In this embodiment, the entering member 63 is formed of a sphere. As shown in FIG. 14, the entering member 63 has a thread diameter of the male threaded portion 51 of the engaging member 5 as D, an angle formed by the pair of inner side surfaces 522 and 523, and a pair of inner side surfaces 522 and 523. The minimum distance L2 consisting of the length of the bottom surface 521, the distance between the pair of inner side surfaces 522, 523 is the maximum distance L3, and the predetermined depth of the recess 52 is L4. When the diameter of the member 63 is d, it is formed so as to satisfy the following Expression 1 or Expression 2. By forming so as to satisfy Formula 1 or Formula 2, when the entering member 63 enters the recess 52, it comes into contact with the bottom surface 521 and abuts against the pair of inner side surfaces 522 and 523, respectively. Is formed.

{（Ｄ／２）^２−（Ｌ３／２）^２｝＋{（ｄ／２）^２−（Ｌ３／２）^２｝＞（Ｄ／２）＋（ｄ／２）−Ｌ４・・・（式１）。 {(D / 2) ² − (L3 / 2) ² } + {(d / 2) ² − (L3 / 2) ² }> (D / 2) + (d / 2) −L4 (formula 1).

（ｄ／２）／ｓｉｎ（θ／２）＞（ｄ／２）＋（Ｌ２／２）／ｔａｎ（θ／２）・・・（式２）。 (D / 2) / sin (θ / 2)> (d / 2) + (L2 / 2) / tan (θ / 2) (Expression 2).

そして、図１１（ｄ）、図１３に示すように、この入り込み部材６３は、被係合部材本体６１から係合部材５側（Ｙ２側）に突出可能に、入り込み部材保持部６５３に保持されている。又、入り込み部材保持部６５３に保持された入り込み部材６３は、入り込み部材保持部６５３に収納された付勢部材であるコイルバネ６６によって、常時係合部材５側に付勢されている。 Then, as shown in FIGS. 11D and 13, the entering member 63 is held by the entering member holding portion 653 so as to protrude from the engaged member main body 61 to the engaging member 5 side (Y2 side). ing. Further, the entry member 63 held by the entry member holding portion 653 is constantly urged toward the engagement member 5 by a coil spring 66 that is an urging member housed in the entry member holding portion 653.

以上のように構成された被係合部材６は、図１２、図１３に示すように雌ねじ部６２１が係合部材５の雄ねじ部５１に螺合され、且つ、入り込み部材６３が凹部５２に入り込んだ状態にされ、この状態で、図７に示すように、被係合部材６の固定部６４１が連結部材４の被係合部材受容孔４３に対物側（Ｚ１側）から入れられて、取付部材３の被係合部材固定部３３に固定ボルト６４１ｂで固定される。又、この状態で、図７に示すように被係合部材６の第１延在部６４２ａと第２延在部６４２ｂとが連結部材４の延在部対向壁４２１ａに対向している。 In the engaged member 6 configured as described above, as shown in FIGS. 12 and 13, the female screw portion 621 is screwed into the male screw portion 51 of the engaging member 5, and the entry member 63 enters the recess 52. In this state, as shown in FIG. 7, the fixing portion 641 of the engaged member 6 is inserted into the engaged member receiving hole 43 of the connecting member 4 from the objective side (Z1 side) and attached. It is fixed to the engaged member fixing portion 33 of the member 3 with fixing bolts 641b. In this state, as shown in FIG. 7, the first extending portion 642 a and the second extending portion 642 b of the engaged member 6 are opposed to the extending portion facing wall 421 a of the connecting member 4.

また、図６に示すように、第１主被当て止め部６４１ｄと第２主被当て止め部６４１ｅとの中心線Ｐ３が第２方向線Ｐ１に一致した状態、すなわち、第１主被当て止め部６４１ｄと第２主被当て止め部６４１ｅとの中心線Ｐ３が第１主当て止め部４３１と第２主当て止め部４３２との中心に配位される。従って、この状態では、被係合部材６が雄ねじ部５１に沿って移動するストロークの半分の位置となる。 In addition, as shown in FIG. 6, the center line P3 between the first main stopper part 641d and the second main stopper part 641e coincides with the second direction line P1, that is, the first main stopper part. A center line P3 between the portion 641d and the second main contact stopper 641e is located at the center between the first main contact stopper 431 and the second main contact stopper 432. Therefore, in this state, the engaged member 6 is at a half position of the stroke of moving along the male screw portion 51.

その際、例えば係合部材５における凹部５２の位置が加工時に設計位置からずれている場合には、図２０、図２１に示すように、第１主被当て止め部６４１ｄと第２主被当て止め部６４１ｅとの中心線Ｐ３が第２方向線Ｐ１に一致した状態で、入り込み部材６３が凹部５２に入り込まない場合が起こり得る。その場合は、筒体固定用ネジ部材６５１ｂを一旦緩めて筒体６２を、被係合部材本体６１の筒体保持部６５１に対して回動可能且つ軸方向移動可能状態にし、その状態から、係合部材５の雄ねじ部５１に螺合した筒体６２を回動する。これにより、入り込み部材６３を凹部５２に入り込ませることができる。 At this time, for example, when the position of the recess 52 in the engaging member 5 is shifted from the design position during processing, as shown in FIGS. 20 and 21, the first main contact stopper 641d and the second main contact There may occur a case where the entering member 63 does not enter the recess 52 in a state where the center line P3 with the stopper 641e coincides with the second direction line P1. In that case, the cylindrical body fixing screw member 651b is once loosened so that the cylindrical body 62 is rotatable and axially movable with respect to the cylindrical body holding portion 651 of the engaged member main body 61. The cylindrical body 62 screwed into the male thread portion 51 of the engaging member 5 is rotated. Thereby, the entering member 63 can enter the recess 52.

また、例えば被係合部材本体６１のボルト挿通孔６４１ｃが断面円形状のものから構成した場合、ボルト挿通孔６４１ｃの位置、或いは被係合部材固定部３３の固定ボルト用雌ネジ部３３２の位置が加工時の誤差等によって、例えば図２２、図２３に示すように、被係合部材本体６１のボルト挿通孔６４１ｃに挿通した固定ボルト６４１ｂで被係合部材本体６１を被係合部材固定部３３に固定すると、第１主被当て止め部６４１ｄと第２主被当て止め部６４１ｅとの中心線Ｐ３が第２方向線Ｐ１に対して距離Ｌ１０だけ第１方向（Ｘ１―Ｘ２方向）にずれる場合が起こり得る（この図２１では、Ｘ１側にずれている場合を示す）。 Further, for example, when the bolt insertion hole 641c of the engaged member main body 61 is formed of a circular cross section, the position of the bolt insertion hole 641c or the position of the female screw portion 332 for the fixing bolt of the engaged member fixing portion 33 However, due to errors during processing, for example, as shown in FIGS. 22 and 23, the engaged member main body 61 is engaged with the engaged member fixing portion 64 with the fixing bolt 641b inserted into the bolt insertion hole 641c of the engaged member main body 61. When fixed to 33, the center line P3 between the first main stopper part 641d and the second main stopper part 641e is shifted in the first direction (X1-X2 direction) by a distance L10 with respect to the second direction line P1. A case may occur (in FIG. 21, a case of shifting to the X1 side is shown).

しかし、この実施形態では、ボルト挿通孔６４１ｃが第１方向に長い長孔に形成されているため（図９参照）、上記中心線Ｐ３と第２方向線Ｐ１とを位置合わせしてボルト挿通孔６４１ｃに挿通した固定ボルト６４１ｂで固定できる。尚、ボルト挿通孔６４１ｃは、長孔に形成される形態のものに限らず、例えば断面円形状に形成されてもよく、適宜変更し得る。 However, in this embodiment, since the bolt insertion hole 641c is formed as a long hole that is long in the first direction (see FIG. 9), the center line P3 and the second direction line P1 are aligned to form a bolt insertion hole. It can be fixed with a fixing bolt 641b inserted through 641c. The bolt insertion hole 641c is not limited to the shape formed in the long hole, and may be formed in a circular cross section, for example, and can be changed as appropriate.

次に、本発明のレンズ鏡筒１の動作について説明する。 Next, the operation of the lens barrel 1 of the present invention will be described.

図６に示す状態から、係合部材５の手動操作部５３を手で、１方向に回動させる。これにより、係合部材５と螺合した被係合部材６が、係合部材５の雄ねじ部５１に沿って第１方向のＸ１側に相対移動する。これに伴い、被係合部材６を保持した取付部材３が被係合部材６が共に移動する（図１８参照）。 From the state shown in FIG. 6, the manual operation portion 53 of the engagement member 5 is rotated in one direction by hand. Thereby, the engaged member 6 screwed with the engaging member 5 moves relative to the X1 side in the first direction along the male screw portion 51 of the engaging member 5. Along with this, the attachment member 3 holding the engaged member 6 moves together with the engaged member 6 (see FIG. 18).

そして、図１９に示すように、被係合部材６の第１主被当て止め部６４１ｄが第１主当て止め部４３１に当接すると、被係合部材６の相対移動が止められる。 Then, as shown in FIG. 19, when the first main contact stopper 641 d of the engaged member 6 contacts the first main contact stopper 431, the relative movement of the engaged member 6 is stopped.

このとき、第１副被当て止め部６２３と第１副当て止め部４１３は微小なすき間をもって対向しており、被係合部材６にＸ１の方向に力が加わった場合には両者が当接するようになっている。本発明のような第１副被当て止め部６２３と第１副当て止め部４１３が設けられていない場合には、雄ねじ部５１からの推進力によって被係合部材６の被係合部６５にモーメントがかかり、被係合部材６等が破損する要因になる。しかし、この実施形態では、第１副被当て止め部６２３と第１副当て止め部４１３が設けられているため、雄ねじ部５１からの推進力によって被係合部材６にモーメントがかかり難くでき、被係合部材６等が破損するおそれの少ないものにできる。さらに第１副被当て止め部６２３が筒体６２に設けられているため、係合部材５からＸ１方向に力が加わった場合でも第１副被当て止め部６２３と第１副当て止め部４１３が当接することで筒体６２が被係合部材本体６１から抜けることはなく、被係合部材６が破損するおそれの少ないものにできる。 At this time, the first auxiliary stopper 623 and the first auxiliary stopper 413 are opposed to each other with a minute gap, and when the force is applied to the engaged member 6 in the direction X1, the two contact each other. It is like that. In the case where the first sub stopper stop 623 and the first sub stopper stop 413 are not provided as in the present invention, the engaging portion 65 of the engaged member 6 is driven by the propulsive force from the male screw portion 51. A moment is applied, causing the engaged member 6 and the like to be damaged. However, in this embodiment, since the first sub-contact stop portion 623 and the first sub-stop portion 413 are provided, it is difficult to apply a moment to the engaged member 6 by the propulsive force from the male screw portion 51. The engaged member 6 and the like can be made less likely to be damaged. Further, since the first sub-contact stopper 623 is provided on the cylindrical body 62, even when a force is applied from the engagement member 5 in the X1 direction, the first sub-contact stopper 623 and the first sub-contact stopper 413 are applied. The cylindrical body 62 does not come off from the engaged member main body 61 due to the contact, and the engaged member 6 is less likely to be damaged.

一方、図１８、図１９に示す状態から、係合部材５の手動操作部５３を手で、上記とは反対に他方向側に回動させる。これにより、係合部材５と螺合した被係合部材６が、係合部材５の雄ねじ部５１に沿って第１方向のＸ２側に相対移動し、これに伴い、被係合部材６を保持した取付部材３が被係合部材６が共にＸ２側に移動する。 On the other hand, from the state shown in FIGS. 18 and 19, the manual operation portion 53 of the engagement member 5 is turned by hand to the other direction side opposite to the above. As a result, the engaged member 6 screwed with the engaging member 5 moves relative to the X2 side in the first direction along the male screw portion 51 of the engaging member 5, and accordingly, the engaged member 6 is moved. Both the held attachment member 3 and the engaged member 6 move to the X2 side.

そして、図６に示すように、第１主被当て止め部４３１と第２主被当て止め部４３２との中心線Ｐ３が第２方向線Ｐ１に一致した位置で、入り込み部材６３と凹部５２とが合致し、入り込み部材６３がコイルバネ６６の付勢力によって凹部５２に入り込む。これにより、使用者は、クリック感を得、取付部材３が鏡筒本体２に対してストロークの半分（ストロークの真ん中）だけ移動したことを知ることができる。 Then, as shown in FIG. 6, at the position where the center line P3 between the first main stopper part 431 and the second main stopper part 432 coincides with the second direction line P1, the entering member 63 and the recess 52 And the entering member 63 enters the recess 52 by the biasing force of the coil spring 66. As a result, the user can obtain a click feeling and know that the mounting member 3 has moved by half the stroke (middle of the stroke) with respect to the lens barrel body 2.

また、入り込み部材６３が凹部５２に入り込んだ状態では、図１４に示すように、入り込み部材６３が凹部５２の底面５２１に非接触で、且つ、第１内側面５２２と第２内側面５２３とに当接するため、凹部５２に入り込んだ入り込み部材６３のがたつきを防止できる。これにより、入り込み部材６３が凹部５２に入り込んだ状態で、係合部材５に対する被係合部材６の設計位置（この実施形態では、ストロークの真ん中）に確実に位置決めできる。一方、入り込み部材６３を凹部５２に十分に入り込ませることができ、入り込み部材６３が凹部５２に入り込む際のクリック感を使用者が確実に得ることができる。 Further, in the state in which the entering member 63 enters the recess 52, the entering member 63 is not in contact with the bottom surface 521 of the recess 52, and the first inner side surface 522 and the second inner side surface 523 are in contact with each other as shown in FIG. Since it abuts, rattling of the entry member 63 that has entered the recess 52 can be prevented. Thereby, in the state in which the penetration member 63 entered the recessed part 52, it can position reliably in the design position (this embodiment middle of a stroke) of the to-be-engaged member 6 with respect to the engagement member 5. FIG. On the other hand, the entering member 63 can sufficiently enter the recess 52, and the user can surely obtain a click feeling when the entering member 63 enters the recess 52.

この状態から、更に係合部材５を他方向側に回動させると、コイルバネ６６の付勢力に抗して入り込み部材６３が凹部５２から抜け出す。その際、凹部５２の第２内側面５２３が傾斜面に形成されているため、入り込み部材６３が凹部５２から容易に抜け出すことができる。 When the engaging member 5 is further rotated in the other direction from this state, the entering member 63 comes out of the recess 52 against the urging force of the coil spring 66. At this time, since the second inner side surface 523 of the recess 52 is formed as an inclined surface, the entering member 63 can easily come out of the recess 52.

そして、図１６、図１７に示すように、被係合部材６の第２主被当て止め部６４１ｅが第２主当て止め部４３２に当接すると、被係合部材６のＸ２側への相対移動が止まる。 As shown in FIGS. 16 and 17, when the second main contact stopper 641 e of the engaged member 6 abuts on the second main contact stopper 432, the engaged member 6 is moved relative to the X2 side. The movement stops.

この場合も、第２副被当て止め部６５２ｂが筒体６２を保持した被係合部６５に形成されているため、雄ねじ部５１からの推進力によって被係合部材６にモーメントがかかり難くでき、被係合部材６等が破損するおそれの少ないものにできる。さらに筒体６２につば部６２２が設けられているため、係合部材５からＸ２方向に力が加わった場合でもつば部６２２と被係合部材本体６１が当接することにより、筒体６２が被係合部材本体６１から抜けることはなく、被係合部材６が破損するおそれの少ないものにできる。 Also in this case, since the second sub-engagement stop portion 652b is formed in the engaged portion 65 holding the cylindrical body 62, it is difficult to apply a moment to the engaged member 6 by the propulsive force from the male screw portion 51. The engaged member 6 and the like can be made less likely to be damaged. Furthermore, since the collar part 622 is provided in the cylindrical body 62, when the force is applied from the engaging member 5 in the X2 direction, the collar part 622 and the engaged member main body 61 come into contact with each other, so that the cylindrical body 62 is covered. The engagement member main body 61 does not come out, and the engaged member 6 can be less likely to be damaged.

以上のように構成されたレンズ鏡筒１によれば、被係合部材６が第１方向に延在された延在部６４２を備え、鏡筒本体２が延在部６４２を受け得るように、延在部６４２と対向配置された延在部対向壁４２１ａを備えているため、例えば鏡筒本体２にかかった外力が係合部材５から被係合部材６にかかり、被係合部材６が変形しようとすると、延在部６４２が延在部対向壁４２１ａに受けられる。これにより、被係合部材６の被係合部６５および固定部６４１にかかる力を軽減でき、被係合部材６の被係合部６５および固定部６４１が破損するおそれを少なくできる。従って、例えば固定部６４１の第１方向の長さを短くでき、固定部６４１を受容した連結部材４の被係合部材受容孔４３の第１方向の長さを短くすることも可能になり、連結部材４の強度を向上させ、かつ連結部材４の第１方向の大きさを小さくできる。 According to the lens barrel 1 configured as described above, the engaged member 6 includes the extending portion 642 extending in the first direction so that the lens barrel body 2 can receive the extending portion 642. Since the extending portion facing wall 421a disposed opposite to the extending portion 642 is provided, for example, an external force applied to the lens barrel body 2 is applied from the engaging member 5 to the engaged member 6, and the engaged member 6 If it tries to deform | transform, the extension part 642 will be received by the extension part opposing wall 421a. Thereby, the force applied to the engaged portion 65 and the fixed portion 641 of the engaged member 6 can be reduced, and the possibility that the engaged portion 65 and the fixed portion 641 of the engaged member 6 are damaged can be reduced. Therefore, for example, the length in the first direction of the fixing portion 641 can be shortened, and the length in the first direction of the engaged member receiving hole 43 of the connecting member 4 that has received the fixing portion 641 can be shortened. The strength of the connecting member 4 can be improved and the size of the connecting member 4 in the first direction can be reduced.

また、延在部６４２と延在部対向壁４２１ａとは、固定部６４１から第１方向における一方向側と他方向側との両側に突設されているため、例えば外力が係合部材５から被係合部材６の被係合部６５に第１方向の一方向及び他方向にかかった場合でも、延在部６４２が延在部対向壁４２１ａに受けられ、被係合部材６の被係合部６５および固定部６４１にかかる力を確実に軽減でき、被係合部材６の被係合部６５および固定部６４１が破損するおそれを、より少なくできる。 In addition, since the extension part 642 and the extension part facing wall 421a protrude from the fixing part 641 on both sides of the one direction side and the other direction side in the first direction, for example, external force is applied from the engagement member 5. Even when the engaged portion 65 of the engaged member 6 extends in one direction and the other direction in the first direction, the extended portion 642 is received by the extended portion facing wall 421a, and the engaged member 6 is engaged. The force applied to the joint portion 65 and the fixed portion 641 can be reliably reduced, and the possibility that the engaged portion 65 and the fixed portion 641 of the engaged member 6 are damaged can be further reduced.

また、延在部６４２は、互いに略直交する平面状の第１延在部６４２ａと第２延在部６４２ｂとからなるため、第１延在部６４２ａと第２延在部６４２ｂとによって、例えば係合部材５から被係合部材６の被係合部６５にかかる外力を第１方向に直交する２方向から受けることができ、被係合部材６の被係合部６５および固定部６４１にかかる力をより一層、軽減でき、被係合部材６の被係合部６５および固定部６４１が破損するおそれを、より一層、少なくできる。 In addition, since the extending portion 642 includes a planar first extending portion 642a and a second extending portion 642b that are substantially orthogonal to each other, the first extending portion 642a and the second extending portion 642b, for example, The external force applied to the engaged portion 65 of the engaged member 6 from the engaging member 5 can be received from two directions orthogonal to the first direction, and the engaged portion 65 and the fixed portion 641 of the engaged member 6 Such force can be further reduced, and the possibility that the engaged portion 65 and the fixing portion 641 of the engaged member 6 are damaged can be further reduced.

また、鏡筒本体２は、取付部材３側に突設された板状の突出片４２１の厚さ方向の一方面に、取付部材３を第１方向にガイドするガイド部３２１が形成され、延在部対向壁４２１ａは、突出片４２１の厚さ方向の他方面に形成されているため、構成が簡素化され、しかも、光学部品移動機構のコンパクト化が図られる。 Further, the lens barrel body 2 is formed with a guide portion 321 for guiding the mounting member 3 in the first direction on one surface in the thickness direction of the plate-like protruding piece 421 projecting on the mounting member 3 side. Since the existing facing wall 421a is formed on the other surface in the thickness direction of the protruding piece 421, the configuration is simplified and the optical component moving mechanism can be made compact.

また、鏡筒本体２は、被係合部材６を主当て止め部４３１、４３２を備え、被係合部材６の一方端部に、主当て止め部４３１、４３２に当て止めされる主被当て止め部６４１ｄ、６４１ｅが形成されているため、係合部材５に対する被係合部材６の移動に際して主当て止め部４３１、４３２に主被当て止め部６４１ｄ、６４１ｅを当て止めすることで、被係合部材６が鏡筒本体２に対して設定位置で被係合部材６を保持した取付部材３の移動を止めて設定位置に配置できる。さらに被係合部材６の他方端部に副当て止め部４１３、４１４に微小なすき間を持って対抗する副被当て止め部６２３、６５２ｂが形成されており、被係合部材６にＸ１方向またはＸ２方向の力が加わった場合に副当て止め部４１３、４１４に当接する。その際、被副当て止め部６２３、６５２ｂが被係合部６５に形成されているため、移動に際して係合部材５から被係合部材６に力が伝達される被係合部６５の近傍に、被副当て止め部６２３、６５２ｂを配置でき、被係合部６５から被副当て止め部６２３、６５２ｂまでの距離を短くできる。これにより、被係合部材６が係合部材５から受けるモーメントを小さくできる。 Further, the lens barrel body 2 includes main contact stoppers 431 and 432 for the engaged member 6, and a main contact that is applied to one end of the engaged member 6 by the main contact stoppers 431 and 432. Since the stop portions 641d and 641e are formed, the main contact stop portions 641d and 641e are stopped against the main contact stop portions 431 and 432 when the member 6 to be engaged is moved with respect to the engagement member 5. The joint member 6 can be disposed at the set position by stopping the movement of the mounting member 3 holding the engaged member 6 at the set position with respect to the lens barrel body 2. Further, sub-engagement stoppers 623 and 652b are formed at the other end of the engaged member 6 so as to oppose the sub-abutting stoppers 413 and 414 with a small gap. When a force in the X2 direction is applied, the auxiliary contact portions 413 and 414 come into contact with each other. At this time, the sub-engagement stoppers 623 and 652b are formed in the engaged portion 65, so that the force is transmitted from the engaging member 5 to the engaged member 6 during movement in the vicinity of the engaged portion 65. Thus, the sub-abutting stoppers 623 and 652b can be arranged, and the distance from the engaged part 65 to the sub-abutting stoppers 623 and 652b can be shortened. Thereby, the moment which the to-be-engaged member 6 receives from the engaging member 5 can be made small.

また、係合部材５は、外周に雄ねじ部５１を備え、被係合部６５は、雄ねじ部５１に螺合する雌ネジ部６２１を備えているため、光学部品移動機構が容易に低コストで製作可能になる。 Further, since the engaging member 5 is provided with the male screw portion 51 on the outer periphery and the engaged portion 65 is provided with the female screw portion 621 that is screwed into the male screw portion 51, the optical component moving mechanism can be easily and at low cost. Can be produced.

また、鏡筒本体２は、光学部品を保持し、鏡筒本体２は、取付部材３に対して光学部品の光軸方向に直交する第１方向に移動可能とされているため、例えばイメージセンサの光軸との直交位置をシフトして撮影できる。 Further, the lens barrel body 2 holds an optical component, and the lens barrel main body 2 is movable in a first direction orthogonal to the optical axis direction of the optical component with respect to the mounting member 3. Images can be taken by shifting the position orthogonal to the optical axis.

尚、上記実施形態では、係合部材（入力部材）に雄ねじ部を形成し、被係合部材に、雌ねじ部を形成し、雄ねじ部に雌ねじ部が螺合することで係合部材と被係合部材とが係合したが、この形態のものに限らず、適宜変更できる。例えば係合部材と被係合部材との何れか一方にラックを備え、何れか他方にピニオンを備え、ラックにピニオンが噛合することで係合部材と被係合部材とが係合するものでもよい。 In the above embodiment, the male threaded portion is formed on the engaging member (input member), the female threaded portion is formed on the engaged member, and the female threaded portion is screwed onto the male threaded portion so that the engaged member and the engaged member are engaged. Although the combined member is engaged, the present invention is not limited to this configuration and can be changed as appropriate. For example, a rack is provided on one of the engagement member and the engaged member, a pinion is provided on the other, and the engagement member and the engaged member are engaged by engaging the pinion with the rack. Good.

１レンズ鏡筒
２鏡筒本体（第１部材）
３取付部材（第２部材）
５係合部材（入力部材）
６被係合部材
５１雄ねじ部
５２凹部
５３手動操作部
６３入り込み部材
４２１ａ延在部対向壁
４２１突出片
６４２延在部
６２１雌ネジ部 1 Lens barrel 2 Body (first member)
3 Mounting member (second member)
5 Engagement member (input member)
6 Engagement member 51 Male thread part 52 Recessed part 53 Manual operation part 63 Entering member 421a Extension part facing wall 421 Projection piece 642 Extension part 621 Female thread part

Claims

光学部品を保持した第１部材と、前記第１部材と移動可能に連結された第２部材と、前記第１部材を前記第２部材に対して移動させる移動部材とを備え、
前記移動部材は、前記第１部材と前記第２部材との何れか一方に回動自在に保持された係合部材と、前記何れか他方に取り付けられ前記係合部材の回動に伴い前記係合部材に対して移動可能に前記係合部材に係合された被係合部材とを備え、
前記係合部材は、前記係合部材の外周面から凹まされるように形成された凹部を備え、
前記凹部は、底面と、前記底面と交差する一対の内側面とを備え、
前記被係合部材は、前記係合部材の回動に際して前記凹部に出入り可能に形成された入り込み部材を備え、
前記入り込み部材は、前記凹部に入り込んだ際に前記底面に非接触で、且つ、前記一対の内側面それぞれに当接するように形成されていることを特徴とする光学部品移動機構。 A first member holding an optical component; a second member movably connected to the first member; and a moving member that moves the first member relative to the second member;
The moving member includes an engaging member rotatably held by one of the first member and the second member, and the engaging member attached to either one of the first member and the second member as the engaging member rotates. An engaged member engaged with the engaging member movably with respect to the combined member,
The engagement member includes a recess formed to be recessed from the outer peripheral surface of the engagement member,
The recess includes a bottom surface and a pair of inner surfaces intersecting the bottom surface,
The engaged member includes an entry member formed so as to be able to enter and exit the recess when the engagement member rotates.
The optical member moving mechanism, wherein the entry member is formed so as to be in non-contact with the bottom surface and contact with each of the pair of inner side surfaces when entering the recess.

前記係合部材は、雄ねじ部を備え、
前記凹部は、前記雄ねじ部の一部に形成されており、
前記底面は、前記雄ねじ部のねじ山の頂部から所定の深さの位置に形成されており、
前記一対の内側面は、前記雄ねじ部の径方向外側に行くに従い互いの距離が漸次大きくなる傾斜面からなり、
前記被係合部材は、前記係合部材の回動に際して前記被係合部材が前記雄ねじ部の軸方向に移動し得るように、前記雄ねじ部に螺合した雌ねじ部を備え、
前記入り込み部材は、当該入り込み部材の先端部に、前記凹部に入り込む半球状部を備え、
前記雄ねじ部のねじ山の直径をＤ、前記一対の内側面が互いになす角度をθ、前記一対の内側面同士の距離が最小となる最小距離をＬ２、前記一対の内側面同士の距離が最大となる最大距離をＬ３、前記凹部の前記所定の深さをＬ４、前記半球状部の直径をｄとするとき、以下の式１、又は、式２を満たすように形成されていることを特徴とする請求項１記載の光学部品移動機構。
{（Ｄ／２）^２−（Ｌ３／２）^２｝＋{（ｄ／２）^２−（Ｌ３／２）^２｝＞（Ｄ／２）＋（ｄ／２）−Ｌ４・・・（式１）
（ｄ／２）／ｓｉｎ（θ／２）＞（ｄ／２）＋（Ｌ２／２）／ｔａｎ（θ／２）・・・（式２） The engagement member includes a male screw portion,
The concave portion is formed in a part of the male screw portion,
The bottom surface is formed at a predetermined depth from the top of the screw thread of the male screw portion,
The pair of inner side surfaces are formed of inclined surfaces in which the distance from each other gradually increases as going outward in the radial direction of the male screw portion,
The engaged member includes a female screw portion screwed with the male screw portion so that the engaged member can move in the axial direction of the male screw portion when the engaging member rotates.
The penetration member includes a hemispherical portion that enters the concave portion at a distal end portion of the penetration member,
The diameter of the thread of the male screw portion is D, the angle between the pair of inner side surfaces is θ, the minimum distance at which the distance between the pair of inner side surfaces is minimum is L2, and the distance between the pair of inner side surfaces is maximum. When the maximum distance is L3, the predetermined depth of the concave portion is L4, and the diameter of the hemispherical portion is d, the following formula 1 or formula 2 is satisfied. The optical component moving mechanism according to claim 1.
{(D / 2) ² − (L3 / 2) ² } + {(d / 2) ² − (L3 / 2) ² }> (D / 2) + (d / 2) −L4 (formula 1)
(D / 2) / sin (θ / 2)> (d / 2) + (L2 / 2) / tan (θ / 2) (Expression 2)

前記何れか他方に対する前記第１方向における前記被係合部材の位置を調整する被係合部材位置調整部を、更に備えていることを特徴とする請求項１又は２記載の光学部品移動機構。 3. The optical component moving mechanism according to claim 1, further comprising an engaged member position adjusting unit that adjusts a position of the engaged member in the first direction with respect to any one of the other.

前記被係合部材は、固定ボルトを介して前記何れか他方に固定される固定部を備え、
前記固定部は、前記固定ボルトを通すボルト挿通孔を備え、
前記ボルト挿通孔は、前記第１方向に延された長孔形状に形成されており、
前記被係合部材位置調整部は、前記ボルト挿通孔からなることを特徴とする請求項３記載の光学部品移動機構。 The engaged member includes a fixing portion that is fixed to the other through a fixing bolt,
The fixing portion includes a bolt insertion hole through which the fixing bolt passes.
The bolt insertion hole is formed in a long hole shape extending in the first direction,
The optical component moving mechanism according to claim 3, wherein the engaged member position adjusting portion includes the bolt insertion hole.

前記被係合部材の前記入り込み部材と前記螺合した状態の前記係合部材の前記凹部との互いの位置を調整する凹部位置調整部を、更に備えていることを特徴とする請求項１〜３の何れか一項に記載の光学部品移動機構。 The concave part position adjustment part which adjusts the mutual position with the said recessed part of the said engagement member of the said engagement member and the said engagement member of the said to-be-engaged member is further provided. 4. The optical component moving mechanism according to claim 3.

前記係合部材は、雄ねじ部を備え、
前記凹部は、前記雄ねじ部の一部に形成されており、
前記被係合部材は、前記何れか他方に固定的に取り付けられた被係合部材本体と、前記雄ねじに螺合する雌ねじ部を有する筒状の筒体とを備え、
前記筒体は、前記被係合部材本体に回動可能に、且つ、前記筒体の軸方向に移動可能に保持され、
前記凹部位置調整部は、前記筒体からなることを特徴とする請求項５記載の光学部品移動機構。 The engagement member includes a male screw portion,
The concave portion is formed in a part of the male screw portion,
The engaged member includes an engaged member main body fixedly attached to one of the other, and a cylindrical tube body having a female screw portion screwed into the male screw.
The cylindrical body is held rotatably on the engaged member main body and movable in the axial direction of the cylindrical body,
The optical component moving mechanism according to claim 5, wherein the recess position adjusting portion is formed of the cylindrical body.

前記被係合部材は、前記係合部材に対して前記光学部品の光軸方向と直交する方向に移動することを特徴とする請求項１〜６の何れか一項に記載の光学部品移動機構。 The optical component moving mechanism according to claim 1, wherein the engaged member moves in a direction orthogonal to an optical axis direction of the optical component with respect to the engaging member. .

前記係合部材は、前記係合部材を手動操作するための手動操作部を備えていることを特徴とする請求項１〜７の何れか一項に記載の光学部品移動機構。 The optical component moving mechanism according to claim 1, wherein the engaging member includes a manual operation unit for manually operating the engaging member.

前記係合部材は、雄ねじ部を備え、
前記凹部は、前記雄ねじ部の軸方向で隣接する２つのネジ山のうちの一つにのみ形成されていることを特徴とする請求項１〜８の何れか一項に記載の光学部品移動機構。 The engagement member includes a male screw portion,
9. The optical component moving mechanism according to claim 1, wherein the concave portion is formed only in one of two screw threads adjacent in the axial direction of the male screw portion. .

前記被係合部材は、前記何れか他方に固定的に取り付けられた被係合部材本体と、前記入り込み部材を付勢する付勢部材とを備え、
前記入り込み部材は、前記係合部材に遠ざかる方向及び近づく方向に移動可能に前記被係合部材本体に保持され、
前記付勢部材は、前記入り込み部材を前記近づく方向に付勢するように、前記被係合部材本体に保持されていることを特徴とする請求項１〜９の何れか一項に記載の光学部品移動機構。 The engaged member includes an engaged member main body fixedly attached to any one of the other, and a biasing member that biases the entering member.
The entering member is held by the engaged member main body so as to be movable in a direction away from and closer to the engaging member,
The optical device according to claim 1, wherein the urging member is held by the engaged member main body so as to urge the entering member in the approaching direction. Parts moving mechanism.

請求項１〜１０の何れか一項に記載の光学部品移動機構を備えていることを特徴とするレンズ鏡筒。

A lens barrel comprising the optical component moving mechanism according to claim 1.