JP2023013502A - Adjustment member fixing device and image projection device - Google Patents

Adjustment member fixing device and image projection device Download PDF

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JP2023013502A
JP2023013502A JP2021117729A JP2021117729A JP2023013502A JP 2023013502 A JP2023013502 A JP 2023013502A JP 2021117729 A JP2021117729 A JP 2021117729A JP 2021117729 A JP2021117729 A JP 2021117729A JP 2023013502 A JP2023013502 A JP 2023013502A
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member fixing
adjustment
adjusting member
fixing device
adjustment member
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JP7316532B2 (en
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泰弘 津雪
Yasuhiro Tsuyuki
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Casio Computer Co Ltd
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Casio Computer Co Ltd
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Priority to JP2021117729A priority Critical patent/JP7316532B2/en
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Priority to CN202210826076.4A priority patent/CN115700410A/en
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Abstract

To provide an adjustment member fixing device and image projection device, which make it hard for an optical axis of a lens barrel to be shifted even when an adjustment member is fixed.SOLUTION: An adjustment member fixing device 50 fixed to an opening 20a1 of a housing 20 of an image projection device 10 comprises an adjustment member fixing part 55 capable of pressing adjustment rings 30 (focus adjustment ring 31, zoom adjustment ring 32), or movable adjustment members provided on the lens barrel 80 side, in an optical axis LC direction.SELECTED DRAWING: Figure 2

Description

本発明は、調整部材固定装置及び投影装置に関する。 The present invention relates to an adjustment member fixing device and a projection device.

従来から、ズーム調整やフォーカス調整を手動で行うためのレンズ鏡筒に設けられる調整リング等の調整部材を固定する調整部材固定装置が提案されている。例えば、特許文献１には、監視カメラが備えるレンズ鏡筒の調整リングの外周にブレーキリングを設け、調整リングとブレーキリングの間にはブレーキ部材が設けられる調整部材固定装置が開示される。ブレーキ部材は、ブレーキリングの上側に設けられた雌ねじ部に螺合するロックツマミの先端に設けられる。ロックツマミは、ブレーキリングの内側に位置するよう鏡筒本体から突出する突出部を介してブレーキ部材と連結している。ロックツマミを締める方向に回転すると、ブレーキ部材は調整リングに対して上方から当接し、ブレーキリングは調整リングに対して下方から当接する。このようにして、ロックツマミの回転により、ブレーキ部材とブレーキリングは互いに反対方向に移動して調整リングが挟持されて、鏡筒本体に対して回転不能に調整リングが固定される。 2. Description of the Related Art Conventionally, there has been proposed an adjustment member fixing device for fixing an adjustment member such as an adjustment ring provided on a lens barrel for manually performing zoom adjustment and focus adjustment. For example, Patent Document 1 discloses an adjustment member fixing device in which a brake ring is provided on the outer circumference of an adjustment ring of a lens barrel of a surveillance camera, and a brake member is provided between the adjustment ring and the brake ring. The brake member is provided at the tip of a lock knob that is screwed into a female thread provided on the upper side of the brake ring. The lock knob is connected to the brake member via a protruding portion that protrudes from the lens barrel body so as to be positioned inside the brake ring. When the lock knob is rotated in the tightening direction, the brake member abuts against the adjustment ring from above, and the brake ring abuts against the adjustment ring from below. In this way, by rotating the lock knob, the brake member and the brake ring move in opposite directions to clamp the adjustment ring, and the adjustment ring is non-rotatably fixed to the lens barrel body.

国際公開第２０１３／１２１８３２号公報International Publication No. 2013/121832

上記従来の調整部材固定装置では、調整リングの上側及び下側から調整リングを挟持するように押圧する。ここで、調整リングの上下からの押圧のタイミングがズレている場合には、レンズ鏡筒に上側又は下側の一方からの力が先に掛かることでレンズ鏡筒の光軸がズレてしまうことがある。これを防止するためには調整リングを押圧するタイミングを同じくする必要があるが、精密にタイミングを同じくすることは高精度な部品加工や組み立てが必要になり困難である。 In the above-described conventional adjusting member fixing device, the adjusting ring is pressed from above and below so as to be sandwiched. Here, if the timing of pressing the adjustment ring from the top and bottom is off, the optical axis of the lens barrel may be shifted due to the force applied to the lens barrel from either the upper side or the lower side first. There is In order to prevent this, it is necessary to match the pressing timings of the adjustment rings, but it is difficult to precisely match the timings because highly accurate parts processing and assembly are required.

本発明は、調整部材を固定してもレンズ鏡筒の光軸がズレ難い調整部材固定装置及び投影装置を提供することを目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide an adjusting member fixing device and a projection device in which the optical axis of a lens barrel is less likely to deviate even when the adjusting member is fixed.

本発明の一態様の調整部材固定装置は、レンズ鏡筒側に設けられている可動可能な調整部材を固定するために、前記レンズ鏡筒の光軸方向に押圧可能な調整部材固定部を備える。 An adjustment member fixing device according to one aspect of the present invention includes an adjustment member fixing portion that can be pressed in the optical axis direction of the lens barrel in order to fix the movable adjustment member provided on the lens barrel side. .

本発明によれば、調整部材を固定してもレンズ鏡筒の光軸がズレ難い調整部材固定装置及び投影装置を提供することができる。 According to the present invention, it is possible to provide an adjustment member fixing device and a projection device in which the optical axis of the lens barrel is less likely to shift even when the adjustment member is fixed.

本発明の実施形態に係る調整部材固定装置が取り付けられた投影装置の外観を示す斜視図である。1 is a perspective view showing the appearance of a projection device to which an adjustment member fixing device according to an embodiment of the invention is attached; FIG. 本発明の実施形態に係る調整部材固定装置が取り付けられた投影装置の拡大部分平面図である。FIG. 4 is an enlarged partial plan view of the projection device to which the adjustment member fixing device according to the embodiment of the present invention is attached; 本発明の実施形態に係る調整部材固定装置を示す図であり、（ａ）は前上側から見た斜視図であり、（ｂ）は後下側から見た斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the adjusting member fixing device which concerns on embodiment of this invention, (a) is the perspective view seen from the front upper side, (b) is the perspective view seen from the rear lower side. 本発明の実施形態に係る調整部材固定装置の分解斜視図である。1 is an exploded perspective view of an adjusting member fixing device according to an embodiment of the present invention; FIG. 本発明の実施形態に係る調整部材固定装置を投影装置に取り付ける前の状態の図２のＩＩＩ－ＩＩＩ断面に相当する断面図である。FIG. 3 is a cross-sectional view corresponding to the III-III cross section in FIG. 2 of the state before the adjustment member fixing device according to the embodiment of the present invention is attached to the projection device; 本発明の実施形態に係る調整部材固定装置を投影装置に取り付ける前の状態の図２のＩＶ－ＩＶ断面に相当する断面図である。FIG. 3 is a sectional view corresponding to the IV-IV section of FIG. 2 showing the state before the adjustment member fixing device according to the embodiment of the present invention is attached to the projection device; 本発明の実施形態に係る調整部材固定装置を投影装置に取り付ける様子を示す、図２のＩＩＩ－ＩＩＩ断面に相当する断面図であり、（ａ）は一対の係合部の第２当接部の一方を隙間Ｓ２に挿入した状態を示し、（ｂ）は第２ねじ部材を締め込む前の状態を示す。FIG. 3 is a cross-sectional view corresponding to the III-III cross section of FIG. 2 showing how the adjustment member fixing device according to the embodiment of the present invention is attached to the projection device, where (a) is the second contact portion of the pair of engaging portions; is inserted into the gap S2, and (b) shows the state before the second screw member is tightened. 本発明の実施形態に係る調整部材固定装置を投影装置に取り付ける様子を示す、図７（ｂ）に対応する図２のＩＶ－ＩＶ断面に相当する断面図である。7B is a sectional view corresponding to the section IV-IV in FIG. 2, corresponding to FIG. 7B, showing how the adjustment member fixing device according to the embodiment of the present invention is attached to the projection apparatus; FIG. 本発明の実施形態に係る調整部材固定装置が取り付けられた投影装置の図２のＩＩＩ－ＩＩＩ断面図である。FIG. 3 is a cross-sectional view of the projection device, taken along line III-III of FIG. 2, to which the adjustment member fixing device according to the embodiment of the present invention is attached; 本発明の実施形態に係る調整部材固定装置、調整リング及び上ケースを断面とした図２のＩＶ－ＩＶ断面図である。FIG. 3 is a sectional view taken along line IV-IV of FIG. 2 showing the adjusting member fixing device, the adjusting ring and the upper case according to the embodiment of the present invention;

以下、本発明を実施するための形態について述べる。図１に示すように、投影装置１０は、左右方向を長手方向とする略長矩形箱状に６面（上面２０ａ、下面２０ｂ、左側面２０ｃ、右側面２０ｄ、前面２０ｅ、後面２０ｆ）を有する筐体２０を備える。投影装置１０は、前面２０ｅ側に投影口１１を有する。投影装置１０は、投影口１１から投影光Ｌを出射する。なお、以下の説明においては、投影装置１０における左右とは投影口１１からの投影光Ｌの出射方向に対しての左右方向を示し、前後とは投影装置１０の投影光Ｌの進行方向に対しての前後方向を示す。 A mode for carrying out the present invention will be described below. As shown in FIG. 1, the projection device 10 has six surfaces (an upper surface 20a, a lower surface 20b, a left side 20c, a right side 20d, a front surface 20e, and a rear surface 20f) in the shape of a substantially long rectangular box whose longitudinal direction is the horizontal direction. A housing 20 is provided. The projection device 10 has a projection aperture 11 on the front surface 20e side. The projection device 10 emits projection light L from a projection aperture 11 . In the following description, left and right in the projection device 10 refer to the left and right directions with respect to the emission direction of the projection light L from the projection aperture 11, and front and back refer to the traveling direction of the projection light L from the projection device 10. fore-and-aft direction.

筐体２０は、上面２０ａと右側面２０ｄの一部を備える上ケース２１と、下面２０ｂと右側面２０ｄの一部を備える下ケース２２とを有する。筐体２０は、前側に前側パネル２３、後側に後側パネル２４、左側に左側パネル２５を有する。前側パネル２３は、筐体２０の左前角部２０ｇまで延在し、左前角部２０ｇは角Ｒ状とされる。また、前側パネル２３には、投影口１１の投影口開口部２３ａ、吸気口２３ｂ及び排気口２３ｃが設けられる。後側パネル２４は、左後角部２０ｈまで延在し、左後角部２０ｈは角Ｒ状とされる。後側パネル２４には、図示しないが、吸気口や画像入出力用のコネクタ等の接続口が設けられる。 The housing 20 has an upper case 21 that includes an upper surface 20a and a portion of the right side 20d, and a lower case 22 that includes a lower surface 20b and a portion of the right side 20d. The housing 20 has a front panel 23 on the front side, a rear panel 24 on the rear side, and a left panel 25 on the left side. The front panel 23 extends to the left front corner 20g of the housing 20, and the left front corner 20g is rounded. Further, the front panel 23 is provided with a projection opening 23a of the projection opening 11, an air intake 23b, and an air exhaust 23c. The rear panel 24 extends to the left rear corner 20h, and the left rear corner 20h is rounded. Although not shown, the rear panel 24 is provided with a connection port for an air inlet, an image input/output connector, and the like.

筐体２０の上ケース２１及び下ケース２２における右側面２０ｄとの接続部である縁部２１ａ，２２ａは、角Ｒ状の曲面状とされる。なお、筐体２０の縁部２１ａ，２２ａ以外の縁部（例えば、上面２０ａと左側面２０ｃとによる縁部など）は、略直角状である。下ケース２２における右側面２０ｄには、図示しない電源プラグの接続口が設けられる。また、上ケース２１の上面２０ａには、投影装置１０の設定等を行うことができる操作パネル２１ｂが設けられる。 The edge portions 21a and 22a of the upper case 21 and the lower case 22 of the housing 20, which are the connecting portions with the right side surface 20d, are curved with rounded corners. Edges other than the edges 21a and 22a of the housing 20 (for example, edges formed by the top surface 20a and the left side surface 20c) are substantially rectangular. A connection port for a power plug (not shown) is provided on the right side surface 20d of the lower case 22 . Further, an operation panel 21b is provided on the upper surface 20a of the upper case 21 so that the projector 10 can be set.

図１、図２に示すように、投影装置１０の筐体２０には、光軸をＬＣとするレンズ鏡筒８０が収納されている。レンズ鏡筒８０には、可動可能な調整部材とされる調整リング３０（フォーカス調整リング３１（第１調整部材）及びズーム調整リング３２（第２調整部材））がレンズ鏡筒８０側に設けられている。フォーカス調整リング３１及びズーム調整リング３２は、光軸ＬＣ周りに、光軸ＬＣ方向から見て略半円弧のリング状に設けられて（図５～図１０参照）、手指を掛ける大径部３１ａの外周にはローレットが施されている。図６等に示すように、フォーカス調整リング３１の後方の小径部３１ｂは延設されて、開口するズーム調整リング３２の大径部３２ａの前側の内径部に挿入されている。従って、フォーカス調整リング３１の小径部３１ｂとズーム調整リング３２の大径部３２ａとの間には、隙間Ｓ１が形成される。また、フォーカス調整リング３１の大径部３１ａの後側端面３１ａ１と、ズーム調整リング３２の大径部３２ａの前側端面３２ａ１との間には、レンズ鏡筒８０側の隙間Ｓ３が形成される。図１及び図２に示すように、筐体２０の上面２０ａの左前角部には、略矩形の開口部２０ａ１が設けられる。開口部２０ａ１は、調整リング３０を操作するために開口され、調整リング３０（フォーカス調整リング３１及びズーム調整リング３２）を臨む。 As shown in FIGS. 1 and 2, the housing 20 of the projection device 10 accommodates a lens barrel 80 having an optical axis LC. The lens barrel 80 is provided with an adjustment ring 30 (a focus adjustment ring 31 (first adjustment member) and a zoom adjustment ring 32 (second adjustment member)) serving as movable adjustment members on the lens barrel 80 side. ing. The focus adjustment ring 31 and the zoom adjustment ring 32 are provided around the optical axis LC in the shape of a substantially semi-circular arc when viewed from the direction of the optical axis LC (see FIGS. 5 to 10). is knurled on the outer periphery. As shown in FIG. 6 and the like, the rear small diameter portion 31b of the focus adjustment ring 31 is extended and inserted into the front inner diameter portion of the large diameter portion 32a of the open zoom adjustment ring 32 . Therefore, a gap S<b>1 is formed between the small diameter portion 31 b of the focus adjustment ring 31 and the large diameter portion 32 a of the zoom adjustment ring 32 . A gap S3 on the lens barrel 80 side is formed between the rear end face 31a1 of the large diameter portion 31a of the focus adjustment ring 31 and the front end face 32a1 of the large diameter portion 32a of the zoom adjustment ring 32 . As shown in FIGS. 1 and 2, a substantially rectangular opening 20a1 is provided at the front left corner of the upper surface 20a of the housing 20. As shown in FIGS. The opening 20a1 is opened to operate the adjustment ring 30 and faces the adjustment ring 30 (the focus adjustment ring 31 and the zoom adjustment ring 32).

図５等に示すように、開口部２０ａ１の前後方向に延在する左右で対向して配置される縁部２０１は、それぞれ、調整リング３０に向かって下方に傾斜する。下方に傾斜する縁部２０１の先端面２０２は、平坦面状に形成されて、調整リング３０と１ｍｍ以下の隙間Ｓ２を有する。また、フォーカス調整リング３１とズーム調整リング３２との間における縁部２０１の下面には、板面が光軸ＬＣと直交するように、仕切り板２０３が上ケース２１の下面から立設する。また、図６等に示すように、開口部２０ａ１の左右方向に延在する前後で対向して配置される縁部２０４は、それぞれ、水平な板状端面として形成される。 As shown in FIG. 5 and the like, the left and right edges 201 extending in the front-rear direction of the opening 20 a 1 facing each other are inclined downward toward the adjustment ring 30 . A distal end surface 202 of the downwardly inclined edge portion 201 is formed into a flat surface and has a gap S2 of 1 mm or less with respect to the adjustment ring 30 . A partition plate 203 is erected from the lower surface of the upper case 21 on the lower surface of the edge portion 201 between the focus adjustment ring 31 and the zoom adjustment ring 32 so that the plate surface is orthogonal to the optical axis LC. In addition, as shown in FIG. 6 and the like, the edge portions 204 arranged facing each other at the front and rear extending in the left-right direction of the opening 20a1 are each formed as a horizontal plate-like end surface.

開口部２０ａ１には、フォーカス調整リング３１及びズーム調整リング３２を固定する調整部材固定装置５０が固定される。フォーカス調整リング３１やズーム調整リング３２が調整部材固定装置５０により回動しないように固定された投影装置１０は、例えば、ゲーム機等の組込みシステムに設けられる。この場合、投影光が投影されるスクリーンと投影装置１０との距離が固定的に設定される。従って、ユーザにてフォーカスやズームの調整を行う必要がなく、よって運搬時にフォーカス調整リング３１やズーム調整リング３２が回動してズレないようにするため、調整部材固定装置５０によりフォーカス調整リング３１やズーム調整リング３２が固定される。 An adjustment member fixing device 50 for fixing the focus adjustment ring 31 and the zoom adjustment ring 32 is fixed to the opening 20a1. The projection device 10 in which the focus adjustment ring 31 and the zoom adjustment ring 32 are fixed by the adjustment member fixing device 50 so as not to rotate is provided in an embedded system such as a game machine, for example. In this case, the distance between the screen on which projection light is projected and the projection device 10 is fixed. Therefore, there is no need for the user to adjust the focus and the zoom. and the zoom adjustment ring 32 are fixed.

図３（ａ）、図３（ｂ）、図４に基づいて調整部材固定装置５０の構成を説明する。調整部材固定装置５０は、板金材料により一体的に形成される本体５０ａと、投影装置１０に取り付けた際に前後方向（換言すれば、レンズ鏡筒８０の光軸ＬＣ方向（図１等参照））に向けて本体５０ａに配置される第１ねじ部材５１と、天面視において第１ねじ部材５１と軸方向が直交するように本体５０ａに配置される第２ねじ部材５２とを有する。第１ねじ部材５１及び第２ねじ部材５２は、それぞれ、ワッシャ５３を介して取り付けられている。調整部材固定装置５０の本体５０ａには、調整部材固定部５５Ａと、レンズ鏡筒８０を収納する筐体２０側に調整部材固定装置５０を固定するための本体固定部５６とを備える。そして、調整部材固定部５５Ａは、一対の調整部材固定部５５を備え、本体固定部５６は、一対の係合部５７を備える。 The configuration of the adjusting member fixing device 50 will be described with reference to FIGS. 3(a), 3(b), and 4. FIG. The adjustment member fixing device 50 includes a main body 50a integrally formed of a sheet metal material, and a longitudinal direction (in other words, the optical axis LC direction of the lens barrel 80 (see FIG. 1, etc.)) when attached to the projection device 10. ) and a second screw member 52 arranged on the main body 50a so that the axial direction is perpendicular to the first screw member 51 when viewed from the top. The first screw member 51 and the second screw member 52 are attached via washers 53, respectively. The main body 50a of the adjusting member fixing device 50 is provided with an adjusting member fixing portion 55A and a main body fixing portion 56 for fixing the adjusting member fixing device 50 to the housing 20 side in which the lens barrel 80 is accommodated. The adjusting member fixing portion 55A includes a pair of adjusting member fixing portions 55, and the body fixing portion 56 includes a pair of engaging portions 57. As shown in FIG.

本体５０ａは、左右方向に長い略長矩形板状の上面板５４を備える。上面板５４は、短辺が光軸ＬＣと略平行となる向きに配置される。上面板５４には、ねじ締めの順番を示す数字（第２ねじ部材５２が「１」、第１ねじ部材５１が「２」）と、正面側を示す矢印が刻印されている。この刻印に従って調整部材固定装置５０を投影装置１０に取り付けることで、第１ねじ部材５１及び第２ねじ部材５２の頭部が投影装置１０の側壁と短い側（左側及び前側）となるので、第１ねじ部材５１及び第２ねじ部材５２の回転操作の作業がし易い。上面板５４は、板面を上下方向に向けて設けられる。本体５０ａの一対の調整部材固定部５５は、上面板５４の長辺側の両縁からそれぞれ下方に向けて延在している。一方、本体５０ａの本体固定部５６における一対の係合部５７は、上面板５４の短辺側の両縁からそれぞれ下方に向けて延在している。 The main body 50a includes an upper plate 54 in the shape of a substantially rectangular plate elongated in the left-right direction. The upper plate 54 is arranged so that its short sides are substantially parallel to the optical axis LC. The top plate 54 is marked with a number indicating the order of screw tightening (“1” for the second screw member 52 and “2” for the first screw member 51) and an arrow indicating the front side. By attaching the adjusting member fixing device 50 to the projection device 10 according to this marking, the heads of the first screw member 51 and the second screw member 52 are on the short side (left side and front side) of the side wall of the projection device 10. The operation of rotating the first screw member 51 and the second screw member 52 is easy. The upper plate 54 is provided with its plate surface directed vertically. A pair of adjustment member fixing portions 55 of the main body 50a extend downward from both edges on the long side of the upper plate 54 respectively. On the other hand, a pair of engaging portions 57 of the main body fixing portion 56 of the main body 50a extend downward from both edges of the upper plate 54 on the short side.

一対の調整部材固定部５５は、それぞれ、上面板５４と略直角となるように上端部で上面板５４の長辺と接続する略台形状の接続板５５１を備える。また、調整部材固定部５５は、接続板５５１と略直角となるように接続板５５１の下端と接続して板面を上下方向に向けて略水平に対向する接続板５５１に向かうように配置される左右方向に長い略長矩形の水平板部５５２を備える。そして、調整部材固定部５５は、水平板部５５２における接続板５５１との接続部と反対側の端部と略直角に接続して下方に向けて延設する左右方向に長い略長矩形の挿入爪部５５３を備える。挿入爪部５５３の下側の長辺は、フォーカス調整リング３１の小径部３１ｂの外周面に倣った略凹円弧状に形成される。 Each of the pair of adjusting member fixing portions 55 includes a substantially trapezoidal connection plate 551 that connects with the long side of the top plate 54 at the upper end so as to be substantially perpendicular to the top plate 54 . The adjusting member fixing portion 55 is connected to the lower end of the connecting plate 551 so as to be substantially perpendicular to the connecting plate 551, and is arranged so as to face the connecting plate 551 substantially horizontally facing the plate surface in the vertical direction. and a substantially rectangular horizontal plate portion 552 elongated in the left-right direction. The adjustment member fixing portion 55 is connected to the end portion of the horizontal plate portion 552 opposite to the connection portion to the connection plate 551 at a substantially right angle and extends downward. A claw portion 553 is provided. A lower long side of the insertion claw portion 553 is formed in a substantially concave arc shape following the outer peripheral surface of the small diameter portion 31 b of the focus adjustment ring 31 .

接続板５５１は、上面板５４と接続する上面板５４と同幅の第１同幅板部５５１ａと、第１同幅板部５５１ａよりも幅狭に形成されて水平板部５５２と接続する第２同幅板部５５１ｂとを有する。第１同幅板部５５１ａと第２同幅板部５５１ｂとの間は、側縁が下方に向けて漸次幅狭するよう傾斜して形成される傾斜板部５５１ｃが形成される。接続板５５１の第１同幅板部５５１ａが上面板５４と接続する部分における左右方向略中央には、略長矩形の孔部５４ａが形成される。また、接続板５５１における傾斜板部５５１ｃと第２同幅板部５５１ｂの接続する部分における左右方向略中央には、略長矩形の孔部５５１ｄが形成される。板状に形成される調整部材固定部５５は、弾発性を有し、孔部５４ａ，５５１ｄにより、更に強い弾発性を有する。 The connection plate 551 includes a first same-width plate portion 551 a having the same width as the top plate 54 connected to the top plate 54 and a second plate portion 551 a narrower than the first same-width plate portion 551 a and connected to the horizontal plate portion 552 . 2 same width plate portion 551b. An inclined plate portion 551c is formed between the first same-width plate portion 551a and the second same-width plate portion 551b so that the side edges thereof are inclined to gradually narrow downward. A substantially elongated rectangular hole 54a is formed at substantially the center in the left-right direction of the portion where the first same-width plate portion 551a of the connection plate 551 is connected to the upper surface plate 54 . A substantially long rectangular hole 551d is formed at the substantially center in the horizontal direction of the portion of the connection plate 551 where the inclined plate portion 551c and the second same width plate portion 551b are connected. The plate-shaped adjustment member fixing portion 55 has elasticity, and has stronger elasticity due to the holes 54a and 551d.

一対の調整部材固定部５５の一方側（具体的には前側）には、第１ねじ部材５１が螺合する第１雌ねじ部５５１ｅが設けられる。第１雌ねじ部５５１ｅは、具体的には、一方側（前側）の接続板５５１（傾斜板部５５１ｃ）の前面からバーリング加工が施され、その内径部分にタップ加工が施されて形成される。また、一対の調整部材固定部５５の他方側（具体的には後側）には、第１ねじ部材５１の先端部が当接する第１受部５５１ｆが設けられる。第１受部５５１ｆは、具体的には、他方側（後側）の接続板５５１（傾斜板部５５１ｃ）の内面（前面）から凹状に窪ませて形成される。 A first female threaded portion 551e with which the first screw member 51 is screwed is provided on one side (specifically, the front side) of the pair of adjusting member fixing portions 55 . Specifically, the first female threaded portion 551e is formed by burring from the front surface of the connection plate 551 (inclined plate portion 551c) on one side (front side) and tapping the inner diameter portion thereof. A first receiving portion 551f with which the tip of the first screw member 51 abuts is provided on the other side (specifically, the rear side) of the pair of adjusting member fixing portions 55 . Specifically, the first receiving portion 551f is formed by recessing from the inner surface (front surface) of the connection plate 551 (inclined plate portion 551c) on the other side (rear side).

このように形成される一対の調整部材固定部５５は、第１ねじ部材５１を締め込むと、調整部材固定部５５の弾発力に抗して、互いの間隔を拡大する方向に移動する。第１ねじ部材５１を緩める方向に回転すると、一対の調整部材固定部５５は、互いの間隔を縮小する方向に移動する。このようにして、一対の調整部材固定部５５は、それぞれ、第１ねじ部材５１により各調整リング３０の端面（後側端面３１ａ１、前側端面３２ａ１）に接近・離間可能に形成される。 When the first screw member 51 is tightened, the pair of adjusting member fixing portions 55 formed in this manner moves in the direction of increasing the distance between them against the elastic force of the adjusting member fixing portions 55 . When the first screw member 51 is rotated in the loosening direction, the pair of adjusting member fixing portions 55 move in the direction of reducing the distance between them. In this manner, the pair of adjusting member fixing portions 55 are formed so as to be able to approach and separate from the end faces (rear end face 31a1, front end face 32a1) of each adjustment ring 30 by the first screw member 51, respectively.

一対の係合部５７は、それぞれ、上面板５４の短辺と略直角に接続する略台形状の接続板５７１を備える。接続板５７１は、上面板５４の短辺よりも幅広に形成される。接続板５７１は、上面板５４との接続部分で弾発性を有する。 Each of the pair of engaging portions 57 includes a substantially trapezoidal connection plate 571 connected to the short side of the upper plate 54 at a substantially right angle. The connection plate 571 is formed wider than the short sides of the upper plate 54 . The connection plate 571 has elasticity at the connection portion with the top plate 54 .

接続板５７１の下端における前側及び後側には、左右方向（第２ねじ部材５２の軸方向）外側に向けて突出する板状の第１当接部５７２が設けられている。すなわち、第１当接部５７２は、調整部材固定装置５０の前後左右の４隅部にそれぞれ（合計４個）設けられる。第１当接部５７２は、接続板５７１の幅方向（前後方向）よりも突出するように形成され、接続板５７１の板面とのなす角が鋭角となるよう上方に傾斜して設けられる。そして、第１当接部５７２の前後方向の外側端（前側の第１当接部５７２では前端、後側の第１当接部５７２では後端）には、上方に略直角に折り曲げられた規制当接部５７２ａが形成される。第１当接部５７２には、接続板５７１側の縁部に、凹状に切り欠かれた切欠部５７２ｂが形成される。 Plate-shaped first contact portions 572 projecting outward in the left-right direction (the axial direction of the second screw member 52) are provided on the front and rear sides of the lower end of the connection plate 571 . That is, the first contact portions 572 are provided at the four corners (four in total) of the adjusting member fixing device 50 on the front, rear, left, and right. The first contact portion 572 is formed so as to protrude beyond the width direction (front-rear direction) of the connection plate 571 and is provided so as to be inclined upward so as to form an acute angle with the plate surface of the connection plate 571 . The outer end of the first contact portion 572 in the front-rear direction (the front end of the first contact portion 572 on the front side and the rear end of the first contact portion 572 on the rear side) is bent upward at a substantially right angle. A regulation contact portion 572a is formed. The first contact portion 572 is formed with a notch portion 572b that is recessed at the edge portion on the side of the connection plate 571 .

前後一対に配置される第１当接部５７２の間には、板状の第２当接部５７３が設けられる。第２当接部５７３は、接続板５７１に対して下方に傾斜して設けられる。第２当接部５７３には、中央に切欠部５７３ａが設けられる。 A plate-like second contact portion 573 is provided between the pair of front and rear first contact portions 572 . The second contact portion 573 is provided so as to be inclined downward with respect to the connection plate 571 . A notch portion 573a is provided in the center of the second contact portion 573 .

また、一対の係合部５７は、上述の通り、上面板５４の短辺と接続する。これにより、一対の係合部５７（接続板５７１）は、それぞれ弾発性を有する。一対の係合部５７のうち一方側（左側）の係合部５７の接続板５７１には、第２ねじ部材５２が螺合する第２雌ねじ部５７１ａが設けられる。第２雌ねじ部５７１ａは、具体的には、一方側（左側）の係合部５７の接続板５７１の外側面から内側面に向けてバーリング加工が施された部分にタップ加工が施されて形成される。一方、一対の係合部５７のうち他方側（右側）の係合部５７の接続板５７１には、第２ねじ部材５２の先端部が当接する第２受部５７１ｂが設けられる。具体的には、第２受部５７１ｂは、他方側（右側）の接続板５７１の内面から凹状に窪ませて形成される。また、接続板５７１における第２雌ねじ部５７１ａ及び第２受部５７１ｂの上側近傍には、円弧状の孔部５７４が形成される。円弧状の孔部５７４により、第２雌ねじ部５７１ａ及び第２受部５７１ｂの部分は、弾発性を有する。 Also, the pair of engaging portions 57 are connected to the short sides of the upper plate 54 as described above. Thereby, the pair of engaging portions 57 (connection plate 571) has elasticity. A connection plate 571 of one (left) engaging portion 57 of the pair of engaging portions 57 is provided with a second female screw portion 571a with which the second screw member 52 is screwed. Specifically, the second female threaded portion 571a is formed by tapping a portion of the connecting plate 571 of the engaging portion 57 on one side (left side), which is burred from the outer surface toward the inner surface. be done. On the other hand, the connecting plate 571 of the other (right) engaging portion 57 of the pair of engaging portions 57 is provided with a second receiving portion 571b with which the tip portion of the second screw member 52 abuts. Specifically, the second receiving portion 571b is formed by recessing from the inner surface of the connection plate 571 on the other side (right side). An arc-shaped hole 574 is formed in the connection plate 571 near the upper side of the second female threaded portion 571a and the second receiving portion 571b. The arc-shaped hole 574 allows the second female threaded portion 571a and the second receiving portion 571b to have elasticity.

このように形成される一対の係合部５７は、第２ねじ部材５２を締め込むと、係合部５７の弾発力に抗して一対の係合部５７間が拡大される。そして、第２ねじ部材５２を緩める方向に回転すると、一対の係合部５７間が縮小される。換言すれば、一対の係合部５７は、開口部２０ａ１の対向する縁部２０１に対して拡縮可能に形成される。 In the pair of engaging portions 57 formed in this way, when the second screw member 52 is tightened, the gap between the pair of engaging portions 57 is expanded against the elastic force of the engaging portions 57 . Then, when the second screw member 52 is rotated in the loosening direction, the space between the pair of engaging portions 57 is reduced. In other words, the pair of engaging portions 57 are formed to be expandable and contractable with respect to the opposing edge portions 201 of the opening portion 20a1.

次に、調整部材固定装置５０による調整リング３０の固定方法を図５～図１０を用いて説明する。先ず、調整部材固定装置５０の一対の調整部材固定部５５及び一対の係合部５７を弾発力が発生していない状態（図３（ａ），図３（ｂ）の状態）としておく。このときの一対の調整部材固定部５５の挿入爪部５５３の外側端部間距離はＤ１とされ（図８参照）、一対の係合部５７の接続板５７１間距離はＷ１（図７（ｂ）参照）とされる。次に、図５、図６に示すように、投影装置１０の開口部２０ａ１に対して、調整部材固定装置５０の上面板５４の刻印を参照して、第１ねじ部材５１の頭部側が前側に位置し、第２ねじ部材５２の頭部側が左側に位置するように調整部材固定装置５０を配置して図７（ａ）の状態とする。このとき、調整部材固定装置５０の一方の係合部５７の第２当接部５７３の先端部を隙間Ｓ２に滑り込ませる。 Next, a method of fixing the adjusting ring 30 by the adjusting member fixing device 50 will be described with reference to FIGS. 5 to 10. FIG. First, the pair of adjusting member fixing portions 55 and the pair of engaging portions 57 of the adjusting member fixing device 50 are brought into a state in which no elastic force is generated (states shown in FIGS. 3(a) and 3(b)). At this time, the distance between the outer ends of the insertion claw portions 553 of the pair of adjusting member fixing portions 55 is D1 (see FIG. 8), and the distance between the connecting plates 571 of the pair of engaging portions 57 is W1 (see FIG. 7B )). Next, as shown in FIGS. 5 and 6, with respect to the opening 20a1 of the projection device 10, the head side of the first screw member 51 is positioned on the front side with reference to the markings on the upper surface plate 54 of the adjustment member fixing device 50. , and the head side of the second screw member 52 is positioned on the left side to obtain the state shown in FIG. 7(a). At this time, the tip of the second contact portion 573 of one engaging portion 57 of the adjusting member fixing device 50 is slid into the gap S2.

ここで、図８に示すように、第１当接部５７２の前後の規制当接部５７２ａ間は、開口部２０ａ１の前後方向の長さ（縁部２０４間距離）と略一致している。従って、調整部材固定装置５０は、規制当接部５７２ａが開口部２０ａ１の前後の縁部２０４に案内されることで、容易に位置決めされる。またこのとき、第２当接部５７３の切欠部５７３ａには、縁部２０１の下面に形成される仕切り板２０３が位置されて、調整部材固定装置５０が位置決めされる（図２も参照）。このようにして、図７（ｂ）に示すように、調整部材固定装置５０を、一対の係合部５７における両側の第２当接部５７３の先端部が隙間Ｓ２に入り込む位置に配置する。 Here, as shown in FIG. 8, the distance between the front and rear regulation contact portions 572a of the first contact portion 572 substantially matches the length of the opening 20a1 in the front-rear direction (the distance between the edge portions 204). Therefore, the adjustment member fixing device 50 is easily positioned by guiding the regulation contact portion 572a to the front and rear edge portions 204 of the opening portion 20a1. At this time, the partition plate 203 formed on the lower surface of the edge portion 201 is positioned in the notch portion 573a of the second contact portion 573, and the adjusting member fixing device 50 is positioned (see also FIG. 2). In this manner, as shown in FIG. 7B, the adjusting member fixing device 50 is arranged at a position where the distal end portions of the second contact portions 573 on both sides of the pair of engaging portions 57 enter the gap S2.

またこのとき、図８に示すように、調整部材固定装置５０の一対の調整部材固定部５５の一対の挿入爪部５５３は、フォーカス調整リング３１の小径部３１ｂの外周上であって、フォーカス調整リング３１の大径部３１ａとズーム調整リング３２の大径部３２ａとの間の隙間Ｓ３に位置している。このようにして、調整部材固定部５５Ａ（一対の調整部材固定部５５の挿入爪部５５３）は、隙間Ｓ３に挿入するために隙間Ｓ３よりも短い幅Ｄ１とされる第１状態でフォーカス調整リング３１とズーム調整リング３２との間に挿入可能に設けられる。そして、調整部材固定装置５０の上面板５４に刻印される番号に従って、先ず、第２ねじ部材５２を締め込むと、一対の係合部５７は互いの間隔が拡大する方向に移動して、接続板５７１間距離はＷ１（図７（ｂ）に示す状態）からＷ２（図９に示す状態）に広がる（Ｗ１＜Ｗ２）。このとき、第１当接部５７２の下面は、縁部２０１の上面と当接し、第２当接部５７３の上面は、縁部２０１の先端面２０２と当接する。このようにして、本体固定部５６の一対の係合部５７により、調整部材固定装置５０は、筐体２０の開口部２０ａ１に固定される。換言すれば、調整部材固定装置５０は、本体固定部５６の一対の係合部５７によりレンズ鏡筒８０に対して固定される。 At this time, as shown in FIG. 8, the pair of insertion claw portions 553 of the pair of adjusting member fixing portions 55 of the adjusting member fixing device 50 are located on the outer periphery of the small diameter portion 31b of the focus adjusting ring 31, and the focus adjustment is performed. It is located in the gap S3 between the large diameter portion 31a of the ring 31 and the large diameter portion 32a of the zoom adjustment ring 32. As shown in FIG. In this manner, the adjusting member fixing portion 55A (the insertion claw portion 553 of the pair of adjusting member fixing portions 55) is inserted into the gap S3 so that the focus adjustment ring is inserted into the gap S3 in the first state with the width D1 shorter than the gap S3. 31 and the zoom adjustment ring 32 so as to be insertable. When the second screw member 52 is first tightened in accordance with the numbers stamped on the upper plate 54 of the adjusting member fixing device 50, the pair of engaging portions 57 move in the direction of increasing the distance between them, and are connected. The distance between the plates 571 widens from W1 (state shown in FIG. 7B) to W2 (state shown in FIG. 9) (W1<W2). At this time, the lower surface of the first contact portion 572 contacts the upper surface of the edge portion 201 , and the upper surface of the second contact portion 573 contacts the tip surface 202 of the edge portion 201 . In this manner, the adjustment member fixing device 50 is fixed to the opening 20 a 1 of the housing 20 by the pair of engaging portions 57 of the main body fixing portion 56 . In other words, the adjusting member fixing device 50 is fixed to the lens barrel 80 by the pair of engaging portions 57 of the body fixing portion 56 .

次に、調整部材固定装置５０の上面板５４に刻印される番号に従って、第１ねじ部材５１を締め込むと、一対の調整部材固定部５５は互いの間隔が拡大する方向に移動して、挿入爪部５５３の外側端部間距離はＤ１（図８に示す状態）からＤ２（図１０に示す状態）に広がる（Ｄ１＜Ｄ２）。すなわち、調整部材固定部５５Ａ（一対の調整部材固定部５５）の挿入爪部５５３は、調整リング３０を固定するために隙間Ｓ３と略同じ幅Ｄ２の第２状態となる。一対の調整部材固定部５５の挿入爪部５５３のうち、フォーカス調整リング３１側の挿入爪部５５３は、該挿入爪部５５３と対向するフォーカス調整リング３１の大径部３１ａの後側端面３１ａ１を光軸ＬＣ方向前方に押圧する。一方、ズーム調整リング３２側の挿入爪部５５３は、該挿入爪部５５３と対向するズーム調整リング３２の大径部３２ａの前側端面３２ａ１を光軸ＬＣ方向後方に押圧する。このようにして、一対の調整部材固定部５５は、それぞれ、調整リング３０を光軸ＬＣ方向に押圧可能に設けられる。そして、ズーム調整リング３２の大径部３２ａの前側端面３２ａ１を押圧する調整部材固定部５５の挿入爪部５５３は、挿入爪部５５３が板状に形成されて弾発性を有することにより、隙間Ｓ１に入り込むようにして係合する。一方、フォーカス調整リング３１の大径部３２ａの後側端面３１ａ１を押圧する調整部材固定部５５の挿入爪部５５３は、同様に、後側端面３１ａ１に食い込むように係合する。このようにして、調整部材固定装置５０により、調整リング３０は光軸ＬＣ方向に押圧されることにより、回動が規制され固定される。 Next, when the first screw member 51 is tightened in accordance with the numbers stamped on the top plate 54 of the adjusting member fixing device 50, the pair of adjusting member fixing portions 55 move in the direction of increasing the distance between them, and are inserted. The distance between the outer ends of the claw portion 553 increases from D1 (state shown in FIG. 8) to D2 (state shown in FIG. 10) (D1<D2). That is, the insertion claw portions 553 of the adjusting member fixing portions 55A (the pair of adjusting member fixing portions 55) are in the second state with the width D2 substantially equal to the gap S3 in order to fix the adjusting ring 30. FIG. Of the pair of insertion claw portions 553 of the adjustment member fixing portions 55, the insertion claw portion 553 on the side of the focus adjustment ring 31 has a rear end face 31a1 of the large diameter portion 31a of the focus adjustment ring 31 facing the insertion claw portion 553. Press forward in the direction of the optical axis LC. On the other hand, the insertion claw portion 553 on the zoom adjustment ring 32 side presses the front end surface 32a1 of the large diameter portion 32a of the zoom adjustment ring 32 facing the insertion claw portion 553 rearward in the optical axis LC direction. In this manner, the pair of adjustment member fixing portions 55 are provided so as to be able to press the adjustment ring 30 in the direction of the optical axis LC. The insertion claw portion 553 of the adjustment member fixing portion 55 that presses the front end face 32a1 of the large diameter portion 32a of the zoom adjustment ring 32 is formed into a plate shape and has elasticity, so that the clearance is reduced. Engage so as to enter S1. On the other hand, the insertion pawl portion 553 of the adjustment member fixing portion 55 that presses the rear end face 31a1 of the large diameter portion 32a of the focus adjustment ring 31 similarly bites into and engages with the rear end face 31a1. In this manner, the adjusting member fixing device 50 presses the adjusting ring 30 in the direction of the optical axis LC, thereby restricting its rotation and fixing it.

すなわち、調整部材（調整リング３０）の固定方法は、以下の工程を有する。
準備工程；調整部材固定部５５の挿入爪部５５３の幅をＤ１（第１状態）、一対の係合部５７の幅は、Ｗ１としておく（図５、図６）。
調整部材固定部挿入工程（第１工程）；一方の係合部５７の第２当接部５７３の先端部を隙間Ｓ２に滑り込ませ（図７（ａ））た後、他方の係合部５７も隙間Ｓ２に挿入して、両側の第２当接部５７３の先端部が隙間Ｓ２に入り込む位置とし（図７（ｂ））、調整部材固定部５５の挿入爪部５５３をレンズ鏡筒８０側の隙間Ｓ３に挿入する（図８）。
本体固定工程；第２ねじ部材５２を締めて、一対の係合部５７の幅をＷ２として、調整部材固定装置５０を開口部２０ａ１（レンズ鏡筒８０側の筐体２０）に固定する（図９）。
調整部材固定工程（第２工程）；第１ねじ部材５１を締めて、調整部材固定部５５の挿入爪部５５３の幅をＤ１からＤ２（第２状態）として、レンズ鏡筒８０の調整リング３０の隙間Ｓ３と略同じ幅とする（図１０）。すると、この第２状態のときに、調整部材固定部５５の挿入爪部５５３により、調整リング３０は光軸ＬＣ方向に押圧される。 That is, the fixing method of the adjustment member (adjustment ring 30) has the following steps.
Preparatory step: The width of the insertion claw portion 553 of the adjustment member fixing portion 55 is set to D1 (first state), and the width of the pair of engaging portions 57 is set to W1 (FIGS. 5 and 6).
Adjustment member fixing portion inserting step (first step); are inserted into the gap S2 so that the tips of the second contact portions 573 on both sides enter the gap S2 (FIG. 7B), and the insertion claw portion 553 of the adjustment member fixing portion 55 is positioned on the lens barrel 80 side. (Fig. 8).
Main body fixing step: Tighten the second screw member 52, set the width of the pair of engaging portions 57 to W2, and fix the adjustment member fixing device 50 to the opening 20a1 (the housing 20 on the lens barrel 80 side) (Fig. 9).
Adjusting member fixing step (second step): Tighten the first screw member 51 to set the width of the insertion claw portion 553 of the adjusting member fixing portion 55 from D1 to D2 (second state), and adjust the adjusting ring 30 of the lens barrel 80. The width of the gap S3 is substantially the same as that of the gap S3 (FIG. 10). Then, in this second state, the insertion claw portion 553 of the adjustment member fixing portion 55 presses the adjustment ring 30 in the direction of the optical axis LC.

なお、第１ねじ部材５１を緩めれば、一対の調整部材固定部５５の挿入爪部５５３が接近する方向に移動して図８の状態に戻るので、一対の調整部材固定部５５による調整リング３０の固定が解除される。このとき、調整部材固定装置５０は、本体固定部５６（一対の係合部５７）により筐体２０の開口部２０ａ１に固定されている状態が維持されている。従って、調整部材固定装置５０を筐体２０に固定した状態で、調整リング３０を手指で回動してフォーカス調整、ズーム調整をすることができる。 If the first screw member 51 is loosened, the insertion claws 553 of the pair of adjusting member fixing portions 55 move toward each other and return to the state shown in FIG. 30 is released. At this time, the adjusting member fixing device 50 is kept fixed to the opening 20a1 of the housing 20 by the body fixing portion 56 (the pair of engaging portions 57). Therefore, with the adjustment member fixing device 50 fixed to the housing 20, the adjustment ring 30 can be rotated by fingers to adjust focus and zoom.

以上の実施形態によれば、調整部材固定装置５０は、レンズ鏡筒８０側に設けられている可動可能な調整部材である調整リング３０（フォーカス調整リング３１及びズーム調整リング３２）を固定するために、光軸ＬＣ方向に押圧可能な調整部材固定部５５を有する。これにより、調整リング３０の固定に際して光軸ＬＣと直交する方向にレンズ鏡筒８０を押圧することが無いので、調整部材固定装置５０により調整リング３０を固定しても、レンズ鏡筒８０の光軸ＬＣの光軸ズレを低減することができる。なお、本実施形態においては、調整部材（フォーカス調整リング３１、ズーム調整リング３２）を半円弧状に形成したが、これに限られず、レバー等の種々の形態の調整部材とすることができる。 According to the above embodiment, the adjustment member fixing device 50 fixes the adjustment ring 30 (the focus adjustment ring 31 and the zoom adjustment ring 32), which is a movable adjustment member provided on the lens barrel 80 side. , has an adjustment member fixing portion 55 that can be pressed in the direction of the optical axis LC. As a result, when fixing the adjustment ring 30, the lens barrel 80 is not pressed in a direction perpendicular to the optical axis LC. Optical axis deviation of the axis LC can be reduced. In the present embodiment, the adjustment members (focus adjustment ring 31 and zoom adjustment ring 32) are formed in a semicircular arc shape, but they are not limited to this, and various forms of adjustment members such as levers can be used.

また、調整部材固定装置５０の調整部材固定部５５における挿入爪部５５３は、リング状に設けられている調整リング３０の端面（後側端面３１ａ１、前側端面３２ａ１）に当接する。これにより、簡単な構成で調整リング３０を光軸ＬＣ方向に押圧することができる。 Further, the insertion claw portion 553 of the adjusting member fixing portion 55 of the adjusting member fixing device 50 abuts on the end faces (the rear end face 31a1 and the front end face 32a1) of the ring-shaped adjustment ring 30 . As a result, the adjusting ring 30 can be pressed in the direction of the optical axis LC with a simple configuration.

また、調整部材固定部５５の挿入爪部５５３は、第１ねじ部材５１により調整リング３０に接近・離間可能に設けられている。これにより、ねじを回すだけの簡単な操作で、調整リング３０の固定と解除の状態の切り換えを行うことができる。 Further, the insertion claw portion 553 of the adjustment member fixing portion 55 is provided so as to be able to approach and separate from the adjustment ring 30 by the first screw member 51 . As a result, the fixed and released states of the adjustment ring 30 can be switched by a simple operation of turning the screw.

また、調整部材固定部５５は、弾発性を有する。これにより、より確実に調整リング３０を光軸ＬＣ方向に押圧することができる。 Further, the adjusting member fixing portion 55 has elasticity. As a result, the adjustment ring 30 can be pressed in the direction of the optical axis LC more reliably.

また、調整部材固定装置５０は、本体固定部５６によりレンズ鏡筒８０が収納される筐体２０に対して固定される。これにより、調整部材固定部５５により調整リング３０を押圧しても、調整部材固定部５５の、例えば挿入爪部５５３がズレてしまう等の不具合を低減することができる。なお、本実施形態においては、一対の係合部５７により調整部材固定装置５０を筐体２０に対して固定したが、これに限られず、他の構成によって固定することもできる。 Further, the adjustment member fixing device 50 is fixed to the housing 20 in which the lens barrel 80 is accommodated by the body fixing portion 56 . As a result, even if the adjustment ring 30 is pressed by the adjustment member fixing portion 55, it is possible to reduce problems such as displacement of the insertion claw portion 553 of the adjustment member fixing portion 55, for example. In the present embodiment, the adjusting member fixing device 50 is fixed to the housing 20 by the pair of engaging portions 57, but it is not limited to this and can be fixed by other configurations.

また、本体固定部５６は、調整リング３０を操作するために開口された筐体２０の開口部２０ａ１に第２ねじ部材５２により固定するための一対の係合部５７を有する。これにより、本体固定部５６の構成を、開口部２０ａ１を利用して固定する簡単な構成とすることができると共に、レンズ鏡筒８０に対して確実に調整部材固定装置５０を固定することができる。 Further, the body fixing portion 56 has a pair of engaging portions 57 for fixing by the second screw member 52 to the opening 20a1 of the housing 20 which is opened for operating the adjustment ring 30. As shown in FIG. As a result, the structure of the main body fixing portion 56 can be simplified by using the opening 20a1, and the adjustment member fixing device 50 can be securely fixed to the lens barrel 80. .

また、調整部材固定部５５は、レンズ鏡筒８０側の隙間Ｓ３に挿入するための隙間Ｓ３より短い幅の第１状態と、調整リング３０を固定するための隙間Ｓ３と略同じ幅Ｄ３の第２状態と、を有し、第２状態のときに調整リング３０を光軸ＬＣ方向に押圧する。これにより、調整部材固定部５５を確実に調整リング３０を固定する位置に配置して、より確実に調整リング３０を固定することができる。 The adjusting member fixing portion 55 has a first state having a width shorter than the gap S3 for insertion into the gap S3 on the lens barrel 80 side, and a first state having a width D3 substantially the same as the gap S3 for fixing the adjusting ring 30. In the second state, the adjustment ring 30 is pressed in the direction of the optical axis LC. As a result, the adjustment member fixing portion 55 can be arranged at a position where the adjustment ring 30 is securely fixed, and the adjustment ring 30 can be fixed more securely.

また、投影装置１０の調整リング３０を調整部材固定装置５０により固定することにより、レンズ鏡筒８０の光軸ＬＣがズレることなく調整リング３０を固定することができるので、調整リング３０を固定しつつ、鮮明な画像を投影することができる投影装置１０とすることができる。 Further, by fixing the adjustment ring 30 of the projection device 10 with the adjustment member fixing device 50, the adjustment ring 30 can be fixed without deviating the optical axis LC of the lens barrel 80. Therefore, the adjustment ring 30 can be fixed. In addition, the projection device 10 can project a clear image.

なお、以上説明した実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の趣旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 It should be noted that the embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and its equivalents.

以下に、本願出願の最初の特許請求の範囲に記載された発明を付記する。
［１］レンズ鏡筒側に設けられている可動可能な調整部材を固定するために、前記レンズ鏡筒の光軸方向に押圧可能な調整部材固定部を備える調整部材固定装置。
［２］前記調整部材固定部は、リング状に設けられている前記調整部材の端面に当接する前記［１］に記載の調整部材固定装置。
［３］前記調整部材固定部は、第１ねじ部材により前記調整部材の前記端面に接近・離間可能に設けられている前記［２］に記載の調整部材固定装置。
［４］前記調整部材固定部は、弾発性を有する前記［１］乃至前記［３］の何れかに記載の調整部材固定装置。
［５］本体固定部により前記レンズ鏡筒が収納される筐体に対して固定される前記［１］乃至前記［４］の何れかに記載の調整部材固定装置。
［６］前記本体固定部は、前記調整部材を操作するために開口された前記筐体の開口部に第２ねじ部材により固定するための一対の係合部を有する前記［５］に記載の調整部材固定装置。
［７］前記調整部材固定部は、前記レンズ鏡筒側の隙間に挿入するための前記隙間より短い幅の第１状態と、前記調整部材を固定するための前記隙間と略同じ幅の第２状態と、を有し、
前記第２状態のときに前記調整部材を前記光軸方向に押圧する、
前記［１］乃至前記［６］の何れか記載の調整部材固定装置。
［８］前記［１］乃至前記［７］の何れか記載の調整部材固定装置が取り付けられる投影装置。 Below, the invention described in the first claim of the present application is added.
[1] An adjustment member fixing device provided with an adjustment member fixing portion that can be pressed in the optical axis direction of the lens barrel in order to fix the movable adjustment member provided on the lens barrel side.
[2] The adjusting member fixing device according to [1], wherein the adjusting member fixing portion contacts an end surface of the ring-shaped adjusting member.
[3] The adjusting member fixing device according to [2], wherein the adjusting member fixing portion is provided so as to be able to approach or separate from the end surface of the adjusting member by means of a first screw member.
[4] The adjusting member fixing device according to any one of [1] to [3], wherein the adjusting member fixing portion has elasticity.
[5] The adjustment member fixing device according to any one of [1] to [4], which is fixed to a housing in which the lens barrel is accommodated by a body fixing portion.
[6] The main body fixing portion according to [5], which has a pair of engaging portions for fixing by a second screw member to an opening of the housing that is opened for operating the adjusting member. Adjustment member fixing device.
[7] The adjusting member fixing portion has a first state having a width shorter than the gap for insertion into the gap on the lens barrel side, and a second state having a width substantially equal to the gap for fixing the adjusting member. having a state and
pressing the adjustment member in the optical axis direction when in the second state;
The adjusting member fixing device according to any one of [1] to [6].
[8] A projection apparatus to which the adjustment member fixing device according to any one of [1] to [7] is attached.

１０ 投影装置 １１ 投影口
２０ 筐体 ２０ａ 上面
２０ａ１ 開口部 ２０ｂ 下面
２０ｃ 左側面 ２０ｄ 右側面
２０ｅ 前面 ２０ｆ 後面
２０ｇ 左前角部 ２０ｈ 左後角部
２１ 上ケース ２１ａ 縁部
２１ｂ 操作パネル ２２ 下ケース
２２ａ 縁部 ２３ 前側パネル
２３ａ 投影口開口部 ２３ｂ 吸気口
２３ｃ 排気口 ２４ 後側パネル
２５ 左側パネル ３０ 調整リング
３１ フォーカス調整リング ３１ａ 大径部
３１ａ１ 後側端面 ３１ｂ 小径部
３２ ズーム調整リング ３２ａ 大径部
３２ａ１ 前側端面 ５０ 調整部材固定装置
５０ａ 本体 ５１ 第１ねじ部材
５２ 第２ねじ部材 ５３ ワッシャ
５４ 上面板 ５４ａ 孔部
５５ 調整部材固定部 ５６ 本体固定部
５７ 係合部 ８０ レンズ鏡筒
２０１ 縁部 ２０２ 先端面
２０３ 仕切り板 ２０４ 縁部
５５１ 接続板 ５５１ａ 第１同幅板部
５５１ｂ 第２同幅板部 ５５１ｃ 傾斜板部
５５１ｄ 孔部 ５５１ｅ 第１雌ねじ部
５５１ｆ 第１受部 ５５２ 水平板部
５５３ 挿入爪部 ５７１ 接続板
５７１ａ 第２雌ねじ部 ５７１ｂ 第２受部
５７２ 第１当接部 ５７２ａ 規制当接部
５７２ｂ 切欠部 ５７３ 第２当接部
５７３ａ 切欠部 ５７４ 孔部
Ｌ 投影光 ＬＣ 光軸
Ｓ１，Ｓ２，Ｓ３ 隙間 10 projection device 11 projection port 20 housing 20a upper surface 20a1 opening 20b lower surface 20c left side surface 20d right side surface 20e front surface 20f rear surface 20g left front corner 20h left rear corner 21 upper case 21a edge 21b operation panel 22 lower case 22a edge 23 Front panel 23a Projection port opening 23b Air inlet 23c Air outlet 24 Rear panel 25 Left panel 30 Adjustment ring 31 Focus adjustment ring 31a Large diameter portion 31a1 Rear end surface 31b Small diameter portion 32 Zoom adjustment ring 32a Large diameter portion 32a1 Front end surface 50 Adjustment member fixing device 50a Main body 51 First screw member 52 Second screw member 53 Washer 54 Top plate 54a Hole 55 Adjustment member fixing portion 56 Main body fixing portion 57 Engagement portion 80 Lens barrel 201 Edge 202 Tip surface 203 Partition Plate 204 Edge 551 Connection plate 551a First same-width plate portion 551b Second same-width plate portion 551c Inclined plate portion 551d Hole portion 551e First female screw portion 551f First receiving portion 552 Horizontal plate portion 553 Insertion claw portion 571 Connection plate 571a Second female screw portion 571b Second receiving portion 572 First contact portion 572a Regulation contact portion 572b Notch portion 573 Second contact portion 573a Notch portion 574 Hole L Projection light LC Optical axes S1, S2, S3 Gap

Claims (8)

レンズ鏡筒側に設けられている可動可能な調整部材を固定するために、前記レンズ鏡筒の光軸方向に押圧可能な調整部材固定部を備える調整部材固定装置。 An adjustment member fixing device comprising an adjustment member fixing portion that can be pressed in the optical axis direction of the lens barrel in order to fix the movable adjustment member provided on the lens barrel side. 前記調整部材固定部は、リング状に設けられている前記調整部材の端面に当接する請求項１に記載の調整部材固定装置。 2. The adjusting member fixing device according to claim 1, wherein the adjusting member fixing portion abuts on an end face of the ring-shaped adjusting member. 前記調整部材固定部は、第１ねじ部材により前記調整部材の前記端面に接近・離間可能に設けられている請求項２に記載の調整部材固定装置。 3. The adjusting member fixing device according to claim 2, wherein the adjusting member fixing portion is provided so as to be able to approach and separate from the end surface of the adjusting member by means of a first screw member. 前記調整部材固定部は、弾発性を有する請求項１乃至請求項３の何れかに記載の調整部材固定装置。 The adjusting member fixing device according to any one of claims 1 to 3, wherein the adjusting member fixing portion has elasticity. 本体固定部により前記レンズ鏡筒が収納される筐体に対して固定される請求項１乃至請求項４の何れかに記載の調整部材固定装置。 5. The adjustment member fixing device according to any one of claims 1 to 4, wherein the fixing member is fixed to a housing in which the lens barrel is accommodated by a body fixing portion. 前記本体固定部は、前記調整部材を操作するために開口された前記筐体の開口部に第２ねじ部材により固定するための一対の係合部を有する請求項５に記載の調整部材固定装置。 6. The adjusting member fixing device according to claim 5, wherein the main body fixing portion has a pair of engaging portions for fixing by a second screw member to an opening of the housing that is opened for operating the adjusting member. . 前記調整部材固定部は、前記レンズ鏡筒側の隙間に挿入するための前記隙間より短い幅の第１状態と、前記調整部材を固定するための前記隙間と略同じ幅の第２状態と、を有し、
前記第２状態のときに前記調整部材を前記光軸方向に押圧する、
請求項１乃至請求項６の何れか記載の調整部材固定装置。 The adjusting member fixing portion has a first state in which the width is shorter than the gap for insertion into the gap on the lens barrel side, and a second state in which the width is substantially the same as the gap for fixing the adjusting member. has
pressing the adjustment member in the optical axis direction when in the second state;
The adjusting member fixing device according to any one of claims 1 to 6. 請求項１乃至請求項７の何れか記載の調整部材固定装置が取り付けられる投影装置。 A projection device to which the adjustment member fixing device according to any one of claims 1 to 7 is attached.
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US17/856,495 US12019358B2 (en) 2021-07-16 2022-07-01 Adjustment member fixing device, projector, and adjustment member fixing method
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004163484A (en) * 2002-11-11 2004-06-10 Fuji Photo Optical Co Ltd Lens barrel
JP2007240955A (en) * 2006-03-09 2007-09-20 Tamron Co Ltd Lens barrel and optical device
WO2013114783A1 (en) * 2012-01-30 2013-08-08 富士フイルム株式会社 Lens device
JP2019132940A (en) * 2018-01-30 2019-08-08 セイコーエプソン株式会社 Projection lens and projector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004163484A (en) * 2002-11-11 2004-06-10 Fuji Photo Optical Co Ltd Lens barrel
JP2007240955A (en) * 2006-03-09 2007-09-20 Tamron Co Ltd Lens barrel and optical device
WO2013114783A1 (en) * 2012-01-30 2013-08-08 富士フイルム株式会社 Lens device
JP2019132940A (en) * 2018-01-30 2019-08-08 セイコーエプソン株式会社 Projection lens and projector

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