JP4454284B2

JP4454284B2 - Lens barrel support device and projector device

Info

Publication number: JP4454284B2
Application number: JP2003363715A
Authority: JP
Inventors: 由展久米
Original assignee: Suwa Optronics Co Ltd
Current assignee: Suwa Optronics Co Ltd
Priority date: 2003-10-23
Filing date: 2003-10-23
Publication date: 2010-04-21
Anticipated expiration: 2023-10-23
Also published as: JP2005128253A

Description

本発明は、鏡筒を移動可能に支持する鏡筒支持装置及び鏡筒支持装置を備えたプロジェクタ装置に関する。 The present invention relates to a lens barrel support device that movably supports a lens barrel and a projector device that includes the lens barrel support device.

従来、例えば、光源から照射された光線を液晶パネルで変調し、鏡筒のレンズを介してスクリーンに投射するプロジェクタ装置が用いられている。そして、この種のプロジェクタ装置において、投射像の位置の調整などのため、鏡筒を光軸と直交する水平方向及び垂直方向に移動(シフト)可能に支持する鏡筒支持装置が知られている。このような鏡筒支持装置としては、例えば、鏡筒を支持するマウント部を備えるとともに、このマウント部を直線状に移動可能に案内する直進ガイドと、マウント部に連結された送りねじと、この送りねじを回転駆動するモータとを備えた構成が知られている。また、マウント部を駆動する手段としては、送りねじ装置に代えて、ラック及びピニオンなどのギア列を用いる構成が知られている(例えば、特許文献１参照。)。
特開２００２−２０６６１５号公報（図５、図７） 2. Description of the Related Art Conventionally, for example, a projector device that modulates light emitted from a light source with a liquid crystal panel and projects the light onto a screen via a lens of a lens barrel has been used. In this type of projector apparatus, there is known a lens barrel support device that supports the lens barrel so that it can be moved (shifted) in the horizontal and vertical directions perpendicular to the optical axis for adjusting the position of the projected image. . As such a lens barrel support device, for example, a mount portion that supports the lens barrel, a linear guide that guides the mount portion so as to be linearly movable, a feed screw connected to the mount portion, A configuration including a motor that rotationally drives a feed screw is known. As a means for driving the mount portion, a configuration using a gear train such as a rack and a pinion instead of the feed screw device is known (see, for example, Patent Document 1).
JP 2002-206615 A (FIGS. 5 and 7)

しかしながら、上記従来の構成では、送りねじやギア列の構造自体が複雑であるとともに、垂直方向に加えて水平方向にも移動可能な構成とすると、マウント部を複数重ねて配置し、これらマウント部を互いに連結する送りねじ装置あるいはギア列を備える必要があり、構成が複雑になる問題を有している。また、移動方向が斜め方向である場合は、垂直方向に移動させる操作と、水平方向に移動させる操作とを組み合わせて移動させる必要があり、操作が煩雑になる問題を有している。 However, in the conventional configuration described above, the structure of the feed screw and the gear train itself is complicated, and when the configuration is movable in the horizontal direction in addition to the vertical direction, a plurality of mount portions are arranged in a stacked manner. It is necessary to provide a feed screw device or a gear train for connecting the two to each other, and there is a problem that the configuration becomes complicated. Further, when the moving direction is an oblique direction, it is necessary to move in a combination of an operation for moving in the vertical direction and an operation for moving in the horizontal direction, which causes a problem that the operation becomes complicated.

本発明は、このような点に鑑みなされたもので、簡略な構成で鏡筒を複数方向に移動可能に支持できる鏡筒支持装置及びプロジェクタ装置を提供することを目的とする。 SUMMARY An advantage of some aspects of the invention is that it provides a barrel support device and a projector device that can support a barrel in a plurality of directions with a simple configuration.

請求項１記載の鏡筒支持装置は、光学機器本体に対して鏡筒を光軸と交差する方向に沿って移動可能に支持する鏡筒支持装置であって、前記鏡筒が取り付けられる移動部材と、この移動部材を光軸と交差する平面に沿った全方向に移動可能に支持する固定部材と、固定部材に対して移動部材を押動して移動させる操作手段と、前記移動部材の前記固定部材に対する光軸を中心とする回転方向の移動を規制する回転規制手段とを具備し、この回転規制手段は、光軸と交差する方向を軸方向とする第１の軸部及びこの第１の軸部に平行な第２の軸部を備えた連結部材と、前記移動部材側に設けられ、前記第１の軸部が回動可能に連結される第１被連結部と、前記固定部材側に設けられ、前記第２の軸部が回動可能に連結される第２被連結部とを備え、前記第１の軸部と前記第１被連結部との連結部分及び前記第２の軸部と前記第２被連結部との連結部分の少なくとも一方は、前記軸部と前記被連結部とが前記軸部の軸方向に沿って相対的に移動可能に連結されたものである。 The lens barrel support device according to claim 1 is a lens barrel support device that supports the lens barrel movably along a direction intersecting the optical axis with respect to the optical apparatus main body, and the movable member to which the lens barrel is attached A fixing member that supports the moving member so as to be movable in all directions along a plane that intersects the optical axis, an operating means that moves the pressing member against the fixing member, and the moving member. comprising a rotation restricting means for restricting the movement in the rotational direction around the optical axis with respect to the fixed member, the rotation restricting means includes a first shaft portion and the first to the direction crossing the optical axis and the axial direction a connecting member having a shaft second shaft portions parallel to the portion of, is provided on the moving member side, and the first the connected portion of the first shaft portion is pivotally connected, the fixed member Provided with a second connected portion to which the second shaft portion is rotatably connected. , At least one of a connecting portion between the first shaft portion and the first connected portion and a connecting portion between the second shaft portion and the second connected portion is the shaft portion and the connected portion. Are connected so as to be relatively movable along the axial direction of the shaft portion.

そして、この構成では、移動部材が平面上を全方向に自在に移動可能であり、任意の位置から任意の位置へ、垂直、水平方向に加え、斜め方向についても操作手段の直接的な一回の操作で可能になり、操作性が向上する。送りねじやギア列を用いる構成に比べて、構成を簡略化し、製造コストが低減される。さらに、移動部材を移動させた際に移動部材に取り付けた鏡筒が回転せず、操作性が向上する。さらに、この構成では、回転規制手段が簡略な構成で実現される。 In this configuration, the moving member can freely move in all directions on the plane. From the arbitrary position to the arbitrary position, in addition to the vertical and horizontal directions, the operation means can be directly operated once in the oblique direction. This makes it possible to improve operability. Compared to a configuration using a feed screw or a gear train, the configuration is simplified and the manufacturing cost is reduced. Furthermore, when the moving member is moved, the lens barrel attached to the moving member does not rotate, and the operability is improved. Furthermore, in this configuration, the rotation restricting means can be realized with a simple configuration.

請求項２記載の鏡筒支持装置は、請求項１記載の鏡筒支持装置において、移動部材と固定部材との間に配置され、前記移動部材及びこの移動部材に取り付けられた鏡筒の自重に抗して移動部材の位置を保持する摩擦手段を具備したものである。The lens barrel support device according to claim 2 is the lens barrel support device according to claim 1, wherein the lens barrel support device is disposed between the moving member and the fixed member, and the weight of the moving member and the lens barrel attached to the moving member is reduced. It is provided with friction means for holding the position of the moving member against it.

そして、この構成では、摩擦手段により鏡筒を取り付けた移動手段の位置が容易に正確に保持可能となる。In this configuration, the position of the moving means to which the lens barrel is attached by the friction means can be easily and accurately held.

請求項３記載の鏡筒支持装置は、請求項１または２記載の鏡筒支持装置において、操作手段は、操作軸及び支点部を設けた杆部材と、前記操作軸に移動可能に連結され、移動部材側及び固定部材側のいずれか他方に取り付けられた第１の軸受部と、前記支点部を回動可能に支持し、移動部材側及び固定部材側のいずれか一方に取り付けられた第２の軸受部とを備えたものである。 Barrel supporting device according to claim 3, in the lens barrel supporting apparatus according to claim 1 or 2, wherein the operation means comprises a guidance rod provided with a control shaft and a support portion is movably coupled to said operating shaft, A first bearing portion attached to either the moving member side or the fixed member side, and a fulcrum portion that rotatably supports the second bearing portion attached to either the moving member side or the fixed member side. The bearing part is provided.

そして、この構成では、杆部材の操作軸を操作し、この操作軸の角度及び方向を変えることにより、移動部材を自在に移動することが可能になる。 And in this structure, it becomes possible to move a moving member freely by operating the operating shaft of a collar member and changing the angle and direction of this operating shaft.

請求項４記載のプロジェクタ装置は、光源と、この光源から照射された光線を変調する光変調手段と、この光変調手段で変調された光線を投射する鏡筒と、光学機器本体と、この光学機器本体に対して前記鏡筒を移動可能にする請求項１ないし３いずれか一記載の鏡筒支持装置とを具備したものである。 According to a fourth aspect of the present invention, there is provided a projector apparatus comprising: a light source; a light modulating unit that modulates a light beam emitted from the light source; a lens barrel that projects the light beam modulated by the light modulating unit; an optical device main body; A lens barrel support device according to any one of claims 1 to 3 , wherein the lens barrel is movable with respect to an apparatus main body.

そして、この構成では、請求項１ないし５いずれか一記載の鏡筒支持装置を備えたため、簡略な構成で鏡筒を自在に移動し、調整作業が容易になる。 In this configuration, since the lens barrel support device according to any one of claims 1 to 5 is provided, the lens barrel can be freely moved with a simple configuration, and the adjustment work is facilitated.

本発明の鏡筒支持装置及びプロジェクタ装置によれば、簡略な構成で鏡筒を任意の位置から任意の位置へ操作性良く移動可能に支持できる。 According to the lens barrel support device and the projector device of the present invention, it is possible to support the lens barrel from an arbitrary position to an arbitrary position with a simple configuration so as to be movable with good operability.

以下、本発明の鏡筒支持装置及びプロジェクタ装置の一実施の形態を図面を参照して説明する。 Hereinafter, an embodiment of a lens barrel support device and a projector device according to the present invention will be described with reference to the drawings.

図２において、１はプロジェクタ装置で、このプロジェクタ装置１は、光学機器本体としての筐体２と、この筐体２に光線を照射する光源３と、光変調手段を構成する３枚のＬＣＤパネルLr，Lg，Lbと、各ＬＣＤパネルLr，Lg，Lbに光源３が照射した光線を導く照明光学系と、各ＬＣＤパネルLr，Lg，Lbで変調された光線をスクリーンに投射する投射光学系と、これらの部材を収納する外装ケース５となどを備えた液晶プロジェクタを構成している。そして、光源３は、ハロゲンランプなどの白熱電球あるいはメタルハライドランプなどの放電ランプなどであり、ＬＣＤパネルLr，Lg，Lbは、表示デバイスである透過型の液晶表示素子であり、照明光学系は、２枚のダイクロイックミラーD1，D2、複数の反射鏡Ｍ及び図示しないレンズなどを備え、投射光学系は、ダイクロイッククロスプリズムDXP、レンズ鏡筒である鏡筒11、及びこの鏡筒11を支持する鏡筒支持装置12などを備えている。また、外装ケース５には、図示しない電源装置、ファン、制御装置などが収納されているとともに、表示装置や操作装置が取り付けられている。 In FIG. 2, reference numeral 1 denotes a projector device. The projector device 1 includes a housing 2 as an optical apparatus body, a light source 3 for irradiating the housing 2 with light rays, and three LCD panels constituting light modulation means. Lr, Lg, Lb, an illumination optical system that guides the light beams emitted from the light source 3 to the LCD panels Lr, Lg, Lb, and a projection optical system that projects the light beams modulated by the LCD panels Lr, Lg, Lb on the screen And a liquid crystal projector including an exterior case 5 for storing these members. The light source 3 is an incandescent lamp such as a halogen lamp or a discharge lamp such as a metal halide lamp. The LCD panels Lr, Lg, and Lb are transmissive liquid crystal display elements that are display devices. The projection optical system includes two dichroic mirrors D1 and D2, a plurality of reflecting mirrors M and a lens (not shown), and the projection optical system includes a dichroic cross prism DXP, a lens barrel 11 that is a lens barrel, and a mirror that supports the barrel 11 A tube support device 12 is provided. The exterior case 5 houses a power supply device, a fan, a control device, and the like (not shown), and a display device and an operation device are attached.

そして、光源３から照射された光線は、照明光学系を介し、２枚のダイクロイックミラーD1，D2で赤(Ｒ)、緑(Ｇ)、青(Ｂ)の色光に色分解され、それぞれＬＣＤパネルLr，Lg，Lbに入射する。そして、各ＬＣＤパネルLr，Lg，Lbは、入射した色光を映像信号処理回路などにて処理した映像信号に応じて変調させる。さらに、変調した色光は、ダイクロイッククロスプリズムDXPで色合成され、カラーの画像が鏡筒11を介してスクリーンに投射される。 The light emitted from the light source 3 is color-separated into red (R), green (G), and blue (B) color light by two dichroic mirrors D1 and D2 via the illumination optical system. Incident on Lr, Lg, and Lb. Each LCD panel Lr, Lg, Lb modulates incident color light according to a video signal processed by a video signal processing circuit or the like. Further, the modulated color light is color-combined by the dichroic cross prism DXP, and a color image is projected onto the screen via the lens barrel 11.

以下、鏡筒11及び鏡筒支持装置12について説明する。なお、光源３からスクリーンに向かう光線の光軸Ｏに沿って、スクリーン側を前側、光源３側を後側とし、さらに、このプロジェクタ装置１の通常の設置状態に従い、光源３側から見て、この光軸Ｏに沿った方向に交差さらには直交する方向を垂直方向(上下方向)Ｖ、及び、光軸Ｏに沿った方向と垂直方向Ｖとに直交する方向を水平方向Ｈとして説明する。 Hereinafter, the lens barrel 11 and the lens barrel support device 12 will be described. The screen side is the front side and the light source 3 side is the rear side along the optical axis O of the light beam directed from the light source 3 to the screen. Further, according to the normal installation state of the projector device 1, as viewed from the light source 3 side, A direction that intersects or is orthogonal to the direction along the optical axis O will be described as a vertical direction (vertical direction) V, and a direction that is orthogonal to the direction along the optical axis O and the vertical direction V will be described as a horizontal direction H.

そして、鏡筒11は、図１及び図３に示すように、例えばアルミニウム合金などにて形成されたカム筒及びガイド筒を備え、これら筒を回動させることにより、内側に支持した複数のレンズの位置を光軸Ｏに沿って移動させ、画像のズーム調整及びピント調整を行う。さらに、鏡筒11の後端部近傍には、取付部である四角枠状のフランジ部21が外周側に突設されている。そして、このフランジ部21の四隅の近傍には、円孔状の取付孔が形成され、これら取付孔に、前側から固定具であるねじ23がそれぞれ挿入されるようになっている。 As shown in FIGS. 1 and 3, the lens barrel 11 includes a cam cylinder and a guide cylinder made of, for example, aluminum alloy, and a plurality of lenses supported on the inside by rotating these cylinders. Is moved along the optical axis O to perform zoom adjustment and focus adjustment of the image. Further, in the vicinity of the rear end portion of the lens barrel 11, a rectangular frame-shaped flange portion 21 that is an attachment portion is provided on the outer peripheral side. In the vicinity of the four corners of the flange portion 21, circular mounting holes are formed, and screws 23, which are fixing tools, are respectively inserted into these mounting holes from the front side.

また、鏡筒支持装置12は、筐体２に対して鏡筒11を移動可能に支持するもので、本実施の形態では、鏡筒11を所定面すなわち光軸Ｏに直交する垂直な平面に沿って、二次元的に、全方向に、平行移動すなわちシフト可能に支持するものである。 In addition, the lens barrel support device 12 supports the lens barrel 11 so as to be movable with respect to the housing 2. In the present embodiment, the lens barrel 11 is placed on a predetermined plane, that is, a vertical plane orthogonal to the optical axis O. Along the two-dimensionally, in all directions, it is supported so that it can be translated or shifted.

そして、この鏡筒支持装置12は、図１、図３ないし図１２に示すように、筐体２側に取り付けられる固定部材31と、この固定部材31に移動可能に支持されるとともに鏡筒11を取り付ける移動部材32とを備えている。さらに、この鏡筒支持装置12は、固定部材31に対して移動部材32の位置を保持する摩擦手段33、固定部材31に対して移動部材32を周り止めする回転規制手段34、及び、固定部材31に対して移動部材32を移動させる操作手段35を備えている。 As shown in FIGS. 1, 3 to 12, the lens barrel support device 12 is fixed to the housing 2, and is supported by the fixing member 31 so as to be movable and the lens barrel 11. And a moving member 32 for attaching the. Further, the lens barrel support device 12 includes a friction means 33 that holds the position of the moving member 32 relative to the fixed member 31, a rotation restricting means 34 that stops the moving member 32 from rotating around the fixed member 31, and a fixed member. Operation means 35 for moving the moving member 32 relative to 31 is provided.

そして、固定部材31は、固定ベース41と、この固定ベース41に組み合わされる蓋体42と、この蓋体42を固定ベース41に固定する複数の固定具であるねじ43となどを備えている。そして、固定ベース41は、例えば樹脂にて形成された基板部45を備え、この基板部45の上下の端部に、筐体２に固定される取付部46が形成されている。そして、この取付部46は、本実施の形態では、図示しないねじなどの固定具を用いて筐体２に固定されるねじ孔などにて形成されている。そして、この基板部45の中央部に、光軸Ｏに沿って、角を丸めた略四角形状をなす挿通部48が形成され、この挿通部48に、鏡筒11の後端部が挿入され、あるいは光線が通過するようになっている。そして、この基板部45の前面に、複数箇所に分散して、所定面を構成する基準面50が形成されている。そして、各基準面50は、略四角形状をなし、互いに同一平面上に位置している。また、この基板部45の１カ所あるいは複数カ所には、本実施の形態では、挿通部48の一側(図１における右側)及び下側に位置して、第２被連結部52が形成されている。そして、この第２被連結部52は、少なくとも移動部材32側である前側に開口した軸受部であり、本実施の形態では、前後に開通する溝状に形成された軸受本体部54と、この軸受本体部54の本体部の長手方向の両端部に幅寸法が小さく形成された軸支部55が形成されている。そして、各軸支部55は、固定具であるねじ56にて基板部45に固定された当て板57により後面が覆われ、略有底孔状に形成されている。また、挿通部48の一側に配置された第２被連結部52は、垂直方向Ｖを長手方向とし、挿通部48の下側に配置された第２被連結部52は、水平方向Ｈを長手方向として配置されている。さらに、基板部45の前面には、挿通部48の周囲に位置して、他の部材との干渉を防ぐ逃げ部59が凹設されている。 The fixing member 31 includes a fixing base 41, a lid 42 combined with the fixing base 41, screws 43 that are a plurality of fixtures for fixing the lid 42 to the fixing base 41, and the like. The fixed base 41 includes a substrate portion 45 formed of, for example, resin, and attachment portions 46 that are fixed to the housing 2 are formed at upper and lower ends of the substrate portion 45. In this embodiment, the mounting portion 46 is formed by a screw hole or the like that is fixed to the housing 2 using a fixing tool such as a screw (not shown). An insertion portion 48 having a substantially square shape with rounded corners is formed in the central portion of the substrate portion 45 along the optical axis O, and the rear end portion of the lens barrel 11 is inserted into the insertion portion 48. Or a light beam passes through. In addition, a reference surface 50 constituting a predetermined surface is formed on the front surface of the substrate portion 45 so as to be dispersed at a plurality of locations. Each reference plane 50 has a substantially square shape and is located on the same plane. Further, in this embodiment, a second connected portion 52 is formed at one or a plurality of locations of the substrate portion 45 on one side (the right side in FIG. 1) and the lower side of the insertion portion 48. ing. And this 2nd to-be-connected part 52 is the bearing part opened to the front side which is the movement member 32 side at least, and in this Embodiment, the bearing main-body part 54 formed in the groove shape opened to the front and back, and this A shaft support portion 55 having a small width dimension is formed at both longitudinal ends of the main body portion of the bearing main body portion 54. Each shaft support portion 55 is formed in a substantially bottomed hole shape with its rear surface covered by a backing plate 57 fixed to the substrate portion 45 with a screw 56 as a fixture. The second connected portion 52 disposed on one side of the insertion portion 48 has the vertical direction V as the longitudinal direction, and the second connected portion 52 disposed below the insertion portion 48 has the horizontal direction H. It is arranged as a longitudinal direction. Further, an escape portion 59 is provided on the front surface of the substrate portion 45 so as to be located around the insertion portion 48 and prevent interference with other members.

また、この固定部材31には、基板部45の両側からそれぞれ前側に一体に突設された側板部61が設けられている。そして、各側板部61の前端部には、上下の端部近傍に位置して、それぞれ固定受部であるねじ孔62が形成されている。また、一方(図１における左側)の側板部61の上側部には、操作手段取付部64が設けられている。この操作手段取付部64は、曲面状に凹設された凹設部65と、この凹設部65の上下に形成された固定受部であるねじ孔66とを備えている。 Further, the fixing member 31 is provided with side plate portions 61 that project integrally from the both sides of the substrate portion 45 to the front side. Then, screw holes 62 that are fixed receiving portions are formed at the front end portions of the side plate portions 61 in the vicinity of the upper and lower end portions. Further, an operating means mounting portion 64 is provided on the upper side of one side plate portion 61 (left side in FIG. 1). The operating means mounting portion 64 includes a recessed portion 65 that is recessed in a curved shape, and a screw hole 66 that is a fixed receiving portion formed above and below the recessed portion 65.

一方、蓋体42は、例えば１枚の略四角状の金属板にて形成され、中央部に、鏡筒11のフランジ部21が挿入される挿通部67を形成した略四角枠状に形成されている。また、この蓋体42の枠状の部分の後面は、平面状の対向面68となっている。さらに、この蓋体42の四隅の近傍などに取付孔69が形成され、前側から各取付孔69に挿入したねじ43を固定ベース41のねじ孔62に螺合することにより、蓋体42が固定ベース41に取り付けられている。そして、蓋体42を固定ベース41に取り付けた状態で、蓋体42の対向面68を含む平面が、固定ベース41の基準面50を含む平面と、互いに平行に、かつ所定の間隔で対向するようになっている。 On the other hand, the lid body 42 is formed of, for example, a substantially rectangular metal plate, and is formed in a substantially rectangular frame shape in which an insertion portion 67 into which the flange portion 21 of the lens barrel 11 is inserted is formed at the center. ing. Further, the rear surface of the frame-shaped portion of the lid 42 is a flat facing surface 68. Further, attachment holes 69 are formed in the vicinity of the four corners of the lid body 42, and the lid body 42 is fixed by screwing screws 43 inserted into the attachment holes 69 from the front side into the screw holes 62 of the fixing base 41. Attached to the base 41. Then, with the lid 42 attached to the fixed base 41, the plane including the facing surface 68 of the lid 42 faces the plane including the reference surface 50 of the fixed base 41 in parallel with each other at a predetermined interval. It is like that.

また、移動部材32は、シフトベース71を備え、このシフトベース71は、例えば合成樹脂にて略四角形板状に形成され、固定ベース41と蓋体42との間に摺動可能に配置されている。そして、このシフトベース71の中央部の前面には、鏡筒取付部73が形成されている。この鏡筒取付部73は、図３などに示すように、凹設された嵌合部74と、この嵌合部74内に位置する円孔状の挿通部75及び四隅の近傍に位置する取付受部としてのねじ孔76とを備えている。そして、嵌合部74に鏡筒11のフランジ部21が嵌合するとともに、鏡筒11の後端部を挿通部75に挿入し、ねじ23をねじ孔76に螺合して締め付けることにより、鏡筒11がシフトベース71に固定されている。 The moving member 32 includes a shift base 71. The shift base 71 is formed in, for example, a substantially square plate shape with synthetic resin, and is slidably disposed between the fixed base 41 and the lid body 42. Yes. A lens barrel mounting portion 73 is formed on the front surface of the center portion of the shift base 71. As shown in FIG. 3 and the like, the lens barrel attaching portion 73 includes a recessed fitting portion 74, a circular hole-like insertion portion 75 located in the fitting portion 74, and an attachment located in the vicinity of the four corners. And a screw hole 76 as a receiving portion. Then, the flange portion 21 of the lens barrel 11 is fitted to the fitting portion 74, the rear end portion of the lens barrel 11 is inserted into the insertion portion 75, and the screw 23 is screwed into the screw hole 76 and tightened. The lens barrel 11 is fixed to the shift base 71.

また、シフトベース71の後面には、図１などに示すように、複数の摺接部78が円柱状あるいは角柱状などに突設され、固定ベース41の基準面50に摺接される。一方、シフトベース71の前面には、図２に示すように、四隅の近傍の４カ所に円孔状の摩擦手段受部79が形成され、各摩擦手段受部79に、摩擦手段33としての摩擦部材を構成する摩擦体81及び付勢手段としてのコイルばねであるスプリング82が装着されている。そして、摩擦体81は、スプリング82の付勢力により蓋体42の対向面68に押しつけられ、この摩擦体81と蓋体42の対向面68との摩擦力、及び、摺接部78と固定ベース41の基準面50との摩擦力により、鏡筒11及び固定ベース41の自重に抗して、固定部材31に対する移動部材32の位置が保持される。 Further, as shown in FIG. 1 and the like, a plurality of sliding contact portions 78 project in a columnar shape or a prismatic shape on the rear surface of the shift base 71 and are in sliding contact with the reference surface 50 of the fixed base 41. On the other hand, as shown in FIG. 2, circular hole-shaped friction means receiving portions 79 are formed on the front surface of the shift base 71 at four locations near the four corners. A friction body 81 constituting a friction member and a spring 82 which is a coil spring as urging means are mounted. The friction body 81 is pressed against the facing surface 68 of the lid body 42 by the biasing force of the spring 82. The friction force between the friction body 81 and the facing surface 68 of the lid body 42, and the sliding contact portion 78 and the fixed base The position of the moving member 32 with respect to the fixed member 31 is held against the weight of the lens barrel 11 and the fixed base 41 by the frictional force of the reference surface 50 of 41.

また、シフトベース71には、固定ベース41の各第２被連結部52に対向して、第１被連結部84が形成されている。そして、第１被連結部84は、第２被連結部52に対向して、挿通部75の一側部と下側部とに形成され、少なくとも後側に開口する溝状に形成されている。さらに、各第１被連結部84の長手寸法は、第２被連結部52よりも長く形成されているとともに、図７ないし図１２に示すように、幅寸法が一定に形成された摺動軸受部85と、この摺動軸受部85から後側に向かって幅寸法が拡開する規制部86とが設けられている。 Further, the shift base 71 is formed with first connected portions 84 facing the second connected portions 52 of the fixed base 41. The first connected portion 84 is formed on one side and the lower side of the insertion portion 75 so as to face the second connected portion 52, and is formed in a groove shape that opens at least on the rear side. . Further, the longitudinal dimension of each first coupled portion 84 is longer than that of the second coupled portion 52, and as shown in FIGS. 7 to 12, the sliding bearing has a uniform width dimension. A portion 85 and a restricting portion 86 whose width dimension is expanded from the sliding bearing portion 85 toward the rear side are provided.

さらに、図１、図３ないし図５などに示すように、シフトベース71の前面の他側部には、操作手段取付台88が設けられている。この操作手段取付台88は、シフトベース71と一体あるいは別体をなして、前側に所定寸法だけ突設されて蓋体42の挿通部67を挿通し、蓋体42よりも前側に位置する前端面には、取付受部であるねじ孔89が形成されている。そして、このねじ孔89に螺合する固定具であるねじ90により、操作手段取付台88の前端部に連結部材92が固定されている。そして、この連結部材92は樹脂あるいは金属などにて板状に形成され、ねじ90が挿入される取付孔93が形成されているとともに、シフトベース71より側方に突出する位置に、前後に貫通する円孔状の第１の軸受部94が形成されている。また、図６に示すように、連結部材92が樹脂などにて形成されて厚さ寸法が大きい場合には、第１の軸受部94は、前後方向の中央部分から前後に向かって径寸法が大きくなるように形成されている。 Further, as shown in FIGS. 1, 3 to 5, etc., an operation means mounting base 88 is provided on the other side of the front surface of the shift base 71. The operating means mounting base 88 is integrated with or separate from the shift base 71, protrudes by a predetermined dimension on the front side, passes through the insertion portion 67 of the lid body 42, and is located at the front end located on the front side of the lid body 42. A screw hole 89 as an attachment receiving portion is formed on the surface. The connecting member 92 is fixed to the front end portion of the operating means mounting base 88 by a screw 90 that is a fixing tool screwed into the screw hole 89. The connecting member 92 is formed in a plate shape with resin or metal, and has a mounting hole 93 into which the screw 90 is inserted. The connecting member 92 penetrates forward and backward at a position protruding from the shift base 71 to the side. A first bearing 94 having a circular hole shape is formed. Further, as shown in FIG. 6, when the connecting member 92 is formed of resin or the like and has a large thickness dimension, the first bearing portion 94 has a radial dimension from the central portion in the front-rear direction toward the front-rear direction. It is formed to be large.

また、回転規制手段34は、それぞれ円柱状をなす第１の軸部101と第２の軸部102とを互いに所定の間隔で平行に配置し、連設部103で一体的に連設した連結部材としてのスイングガイド105を備えている。また、このスイングガイド105の第２の軸部102の長手方向の両端部からは、第２の軸部102の他の部分より幅寸法の小さい回転軸106が突設されている。そして、このスイングガイド105は、第１の軸部101をシフトベース71の第１被連結部84の摺動軸受部85に配置し、第２の軸部102を固定ベース41の第２被連結部52の軸受本体部54に配置した状態で、すなわち固定部材31と移動部材32とを連結するように配置されている。また、この状態で、第２の軸部102から突設した回転軸106を第２被連結部52の軸支部55に配置し、さらに当て板57を取り付けることにより、スイングガイド105は、抜け止めされた状態で、第２の軸部102すなわち回転軸106を中心として回動可能に軸支されるとともに、長手方向すなわち軸方向には移動しないように支持される。一方、第１の軸部101は、シフトベース71の第１被連結部84の摺動軸受部85に配置され、第２の軸部102と同様に回動可能であるとともに、第１の軸部101の長手寸法よりも第１被連結部84の摺動軸受部85の長手寸法が大きいため、第１の軸部101は第１被連結部84に対して長手方向すなわち軸方向に摺動可能に支持される。さらに、この状態で、スイングガイド105の連設部103は、シフトベース71の第１被連結部84の規制部86に配置され、これら連設部103と規制部86との当接により、スイングガイド105の回動範囲が規制されている。 Further, the rotation restricting means 34 includes a first shaft portion 101 and a second shaft portion 102 each having a columnar shape, arranged in parallel with each other at a predetermined interval, and integrally connected by the connecting portion 103. A swing guide 105 is provided as a member. Further, from both ends in the longitudinal direction of the second shaft portion 102 of the swing guide 105, a rotating shaft 106 having a smaller width dimension than the other portion of the second shaft portion 102 is projected. In the swing guide 105, the first shaft portion 101 is disposed on the sliding bearing portion 85 of the first connected portion 84 of the shift base 71, and the second shaft portion 102 is connected to the second connected portion of the fixed base 41. The fixed member 31 and the moving member 32 are connected to each other in a state where the fixed member 31 and the moving member 32 are connected. Further, in this state, the rotation guide 106 projecting from the second shaft portion 102 is disposed on the shaft support portion 55 of the second connected portion 52, and the contact plate 57 is further attached, so that the swing guide 105 is prevented from coming off. In this state, the second shaft portion 102, that is, the rotation shaft 106, is pivotally supported so as to be rotatable, and is supported so as not to move in the longitudinal direction, that is, the axial direction. On the other hand, the first shaft portion 101 is disposed on the sliding bearing portion 85 of the first connected portion 84 of the shift base 71 and can be rotated in the same manner as the second shaft portion 102. Since the longitudinal dimension of the sliding bearing portion 85 of the first connected portion 84 is larger than the longitudinal dimension of the portion 101, the first shaft portion 101 slides in the longitudinal direction, that is, the axial direction with respect to the first connected portion 84. Supported as possible. Further, in this state, the connecting portion 103 of the swing guide 105 is disposed on the restricting portion 86 of the first connected portion 84 of the shift base 71, and the swinging portion 103 and the restricting portion 86 are brought into contact with each other to swing the swing guide 105. The rotation range of the guide 105 is restricted.

そして、固定部材31の固定ベース41と移動部材32のシフトベース71との移動に伴い、これらスイングガイド105が回動し、連設部103と規制部86との当接により、固定部材31の固定ベース41と移動部材32のシフトベース71との移動範囲が規制されるとともに、固定部材31の固定ベース41と移動部材32のシフトベース71との移動は、垂直方向Ｖの移動、水平方向Ｈの移動、及びこれら垂直方向Ｖの移動と水平方向Ｈの移動とを組み合わせた斜め方向の移動に限定され、例えば、光軸Ｏを中心とする回転方向の移動は阻止される。 As the fixed base 41 of the fixing member 31 and the shift base 71 of the moving member 32 move, the swing guide 105 rotates, and the contact between the connecting portion 103 and the restricting portion 86 causes the fixing member 31 to move. The movement range of the fixed base 41 and the shift base 71 of the moving member 32 is restricted, and the movement of the fixed base 31 of the fixed member 31 and the shift base 71 of the moving member 32 is the movement in the vertical direction V and the horizontal direction H. And the movement in the oblique direction combining the movement in the vertical direction V and the movement in the horizontal direction H. For example, the movement in the rotation direction around the optical axis O is prevented.

さらに、操作手段35は、杆部材としての操作スティック111と、この操作スティック111を回動自在に支持する支持体112と、これら部材に取り付けられる付勢手段であるスプリング114、ゴムパッド115、ワッシャ116、ナット117などを備えている。そして、操作スティック111は、細長棒状をなす操作軸121と、この操作軸121の一端部に設けられた支点部としての球頭部122と、この球頭部122から操作軸121の反対側に突設された取付軸部123とを備えている。さらに、取付軸部123の先端部には、ねじ部124が形成されている。また、支持体112は、前後に開口する略円筒状をなす支持体本体部126と、この支持体本体部126の外側面から突設された一対の取付片部127と、支持体本体部126の後側の開口の外周部分を覆い第２の軸受部を構成する球面状の端板部128を備え、各取付片部127には、円孔状の取付孔127aが形成されている。また、スプリング114は、コイルばねであり、ゴムパッド115は、ゴムにて前面が球面状の円盤状に形成され、中央部に通孔115aが形成され、また、ワッシャ116は、例えば金属にて円盤状に形成され、中央部に通孔116aが形成されている。 Further, the operation means 35 includes an operation stick 111 as a collar member, a support 112 that rotatably supports the operation stick 111, a spring 114 that is an urging means attached to these members, a rubber pad 115, and a washer 116. , Nuts 117 and the like. The operation stick 111 includes an operation shaft 121 having an elongated bar shape, a spherical head 122 as a fulcrum provided at one end of the operation shaft 121, and the opposite side of the operation shaft 121 from the spherical head 122. And a mounting shaft portion 123 provided in a protruding manner. Further, a threaded portion 124 is formed at the tip of the mounting shaft portion 123. The support body 112 includes a substantially cylindrical support body portion 126 that opens in the front-rear direction, a pair of attachment pieces 127 that protrude from the outer surface of the support body portion 126, and the support body portion 126. A spherical end plate portion 128 that covers the outer peripheral portion of the rear opening and constitutes the second bearing portion is provided, and each attachment piece portion 127 is formed with a circular attachment hole 127a. Further, the spring 114 is a coil spring, the rubber pad 115 is formed of a rubber disk with a spherical front surface, a through hole 115a is formed in the center, and the washer 116 is a metal disk, for example. A through hole 116a is formed at the center.

そして、この操作手段35は、支持体112の支持体本体部126の内側に、スプリング114を配置するとともに、このスプリング114の付勢力に抗して操作スティック111の球頭部122を前側から挿入し、取付軸部123を後側に突出させる。そして、この取付軸部123を、ゴムパッド115の通孔115aとワッシャ116の通孔116aに挿入し、先端のねじ部124にナット117を螺合して締め付ける。この状態で、スプリング114の付勢力により、ゴムパッド115の前面の球面が支持体112の後面の球面状の端板部128に摺接可能に押圧され、支持体112に対して、球頭部122の中心を支点122aとして、操作スティック111が回動可能に支持される。 The operating means 35 includes a spring 114 disposed inside the support body 126 of the support 112, and the ball head 122 of the operation stick 111 is inserted from the front side against the urging force of the spring 114. Then, the mounting shaft portion 123 protrudes to the rear side. Then, the mounting shaft portion 123 is inserted into the through hole 115a of the rubber pad 115 and the through hole 116a of the washer 116, and the nut 117 is screwed into the screw portion 124 at the tip to be tightened. In this state, due to the biasing force of the spring 114, the spherical surface on the front surface of the rubber pad 115 is slidably pressed against the spherical end plate portion 128 on the rear surface of the support 112, and the ball head 122 is pressed against the support 112. The operation stick 111 is rotatably supported with the center of the fulcrum 122a as a fulcrum 122a.

そして、この操作手段35は、支持体本体部126を固定ベース41の側板部61の凹設部65に位置合わせしてあてがうとともに、支持体112の各取付片部127の取付孔127aに固定具であるねじ129を挿入し、ねじ孔66に螺合することにより、支持体112が固定ベース41に固定され、固定部材31に取り付けられる。また、操作手段35の操作スティック111は、シフトベース71に固定された連結部材92の第１の軸受部94に摺動可能に挿入され、移動部材32と連結される。 The operating means 35 is provided by aligning the support body portion 126 with the recessed portion 65 of the side plate portion 61 of the fixing base 41 and fixing the support body portion 126 to the mounting holes 127a of the mounting pieces 127 of the support body 112. The support body 112 is fixed to the fixed base 41 and attached to the fixed member 31 by inserting the screw 129 and screwing it into the screw hole 66. The operation stick 111 of the operation means 35 is slidably inserted into the first bearing portion 94 of the connecting member 92 fixed to the shift base 71 and connected to the moving member 32.

そして、この鏡筒11及び鏡筒支持装置12の組み立て工程は、例えば、シフトベース71に摩擦手段33を組み付けた状態で、このシフトベース71に蓋体42を重ねる。そして、この蓋体42を間にして、シフトベース71の操作手段取付台88に連結部材92をねじ90にて固定するとともに、前側から蓋体42の挿通部67に鏡筒11を挿入し、フランジ部21を嵌合部74に嵌合するとともに、ねじ23をシフトベース71のねじ孔76に螺合して締め付けることにより、鏡筒11がシフトベース71に固定される。そして、シフトベース71を間に挟むようにして、蓋体42の後側に固定ベース41を配置し、これら固定ベース41と蓋体42とをねじ43にて固定する。さらに、固定ベース41の各第２被連結部52にそれぞれ後側からスイングガイド105を挿入し、ねじ56にて当て板57を固定し、各スイングガイド105を抜け止めする。さらに、予め組み立てた操作手段35の操作スティック111を第１の軸受部94に挿入するとともに、支持体112をねじ129にて固定ベース41に固定し、組み立てが完了する。 In the assembling process of the lens barrel 11 and the lens barrel support device 12, for example, the lid 42 is placed on the shift base 71 in a state where the friction means 33 is assembled to the shift base 71. Then, with the lid 42 in between, the connecting member 92 is fixed to the operating means mounting base 88 of the shift base 71 with screws 90, and the lens barrel 11 is inserted into the insertion portion 67 of the lid 42 from the front side. The lens barrel 11 is fixed to the shift base 71 by fitting the flange portion 21 to the fitting portion 74 and screwing the screw 23 into the screw hole 76 of the shift base 71 and tightening. Then, the fixed base 41 is arranged on the rear side of the lid body 42 so as to sandwich the shift base 71 therebetween, and the fixed base 41 and the lid body 42 are fixed by the screws 43. Further, the swing guide 105 is inserted into each second connected portion 52 of the fixed base 41 from the rear side, the abutting plate 57 is fixed with the screw 56, and each swing guide 105 is prevented from coming off. Further, the operation stick 111 of the operation means 35 assembled in advance is inserted into the first bearing portion 94, and the support 112 is fixed to the fixed base 41 with the screw 129, and the assembly is completed.

そして、この鏡筒支持装置12を筐体２に取り付け、光源３を点灯させた状態で、操作スティック111を垂直方向Ｖ、水平方向Ｈ、あるいは斜め方向に移動させることにより、鏡筒11を光軸Ｏと直交する平面に沿って自在に移動させ、画像の投射位置を調整できるようになっている。 Then, with the lens barrel support device 12 attached to the housing 2 and the light source 3 turned on, the operation stick 111 is moved in the vertical direction V, the horizontal direction H, or the oblique direction, so that the lens barrel 11 is lighted. The projection position of the image can be adjusted by freely moving along a plane orthogonal to the axis O.

すなわち、水平方向Ｈの位置調整については、図７に示すように、操作手段35の操作スティック111を光軸Ｏの方向にほぼ沿わせた状態で、移動部材32に支持された鏡筒11が可動範囲のほぼ中央に位置する。また、この状態で、垂直方向Ｖを軸方向とするスイングガイド105は、第２の軸部102に対して、第１の軸部101が正面前側に位置している。 That is, for the position adjustment in the horizontal direction H, as shown in FIG. 7, the lens barrel 11 supported by the moving member 32 is placed with the operation stick 111 of the operation means 35 substantially along the direction of the optical axis O. Located in the middle of the movable range. In this state, in the swing guide 105 having the vertical direction V as the axial direction, the first shaft portion 101 is located on the front front side with respect to the second shaft portion 102.

そして、この図７に示す状態から、図６及び図８に示すように、操作スティック111の先端側を一側(図８に示す左側)に移動させると、この操作スティック111は支点122aを中心として回動し、操作軸121の中間位置が連結部材92の第１の軸受部94を押動して、移動部材32すなわち鏡筒11を所望量だけ一側に移動させることができる。そして、この移動の際、各回転規制手段34のスイングガイド105により、移動部材32すなわち鏡筒11は回り止めされた状態で移動する。また、この移動部材32の移動範囲は、スイングガイド105が第２の軸部102を中心として回動し、連設部103がシフトベース71の第１被連結部84の規制部86に当接することにより規制される。 Then, when the distal end side of the operation stick 111 is moved to one side (left side shown in FIG. 8) from the state shown in FIG. 7 as shown in FIGS. 6 and 8, the operation stick 111 is centered on the fulcrum 122a. And the intermediate position of the operation shaft 121 pushes the first bearing portion 94 of the connecting member 92 to move the moving member 32, that is, the lens barrel 11 to one side by a desired amount. During this movement, the swing member 105 of each rotation restricting means 34 moves the moving member 32, that is, the lens barrel 11 while being prevented from rotating. Further, the moving range of the moving member 32 is such that the swing guide 105 rotates about the second shaft portion 102, and the connecting portion 103 contacts the restriction portion 86 of the first connected portion 84 of the shift base 71. It is regulated by.

また、図７に示す状態から、図９に示すように、操作スティック111の先端側を他側(図９に示す右側)に移動させると、この操作スティック111は支点122aを中心として回動し、操作軸121の中間位置が連結部材92の第１の軸受部94を押動して、移動部材32すなわち鏡筒11を他側に移動できるとともに、回り止め及び移動範囲の規制が行われる。 Further, when the tip end side of the operation stick 111 is moved to the other side (right side shown in FIG. 9) from the state shown in FIG. 7, the operation stick 111 rotates about the fulcrum 122a. The intermediate position of the operation shaft 121 pushes the first bearing portion 94 of the connecting member 92, so that the moving member 32, that is, the lens barrel 11 can be moved to the other side, and the detent and the movement range are restricted.

一方、垂直方向Ｖの位置調整については、図１０に示すように、操作手段35の操作スティック111を光軸Ｏの方向にほぼ沿わせた状態で、移動部材32に支持された鏡筒11が可動範囲のほぼ中央に位置する。また、この状態で、水平方向Ｈを軸方向とするスイングガイド105は、第２の軸部102に対して、第１の軸部101が正面前側に位置している。 On the other hand, regarding the position adjustment in the vertical direction V, as shown in FIG. 10, the lens barrel 11 supported by the moving member 32 is placed with the operation stick 111 of the operation means 35 substantially along the direction of the optical axis O. Located in the middle of the movable range. In this state, in the swing guide 105 having the horizontal direction H as the axial direction, the first shaft portion 101 is located on the front front side with respect to the second shaft portion 102.

そして、この図１０に示す状態から、図１１に示すように、操作スティック111の先端側を上側に移動させ、また、図１２に示すように、操作スティック111の先端側を下側に移動させることにより、移動部材32すなわち鏡筒11を上下側に所望量だけ移動できるとともに、回り止め及び移動範囲の規制が行われる。 Then, from the state shown in FIG. 10, the distal end side of the operation stick 111 is moved upward as shown in FIG. 11, and the distal end side of the operation stick 111 is moved downward as shown in FIG. Thus, the moving member 32, that is, the lens barrel 11 can be moved up and down by a desired amount, and the rotation prevention and the movement range are regulated.

そして、図７ないし図１２に示す動作を組み合わせることにより、移動部材32すなわち鏡筒11を全方向に自在に移動させることができる。 Then, by combining the operations shown in FIGS. 7 to 12, the moving member 32, that is, the lens barrel 11 can be freely moved in all directions.

このように、本実施の形態の鏡筒支持装置12によれば、鏡筒11を取り付けた移動部材32を、筐体２側に固定的に取り付けた固定部材31に光軸Ｏと直交する平面に沿って全方向に移動可能に支持したため、移動部材32すなわち鏡筒11を任意の位置から任意の位置に素早く移動させることができ、プロジェクタ装置１の調整動作を容易にできる。すなわち、斜め方向の移動について、従来のように、垂直方向の操作と水平方向の操作との組み合わせではなく、直接斜め方向に一回の操作で移動できるため、操作性を向上できる。 As described above, according to the lens barrel support device 12 of the present embodiment, the moving member 32 to which the lens barrel 11 is attached is a plane perpendicular to the optical axis O to the fixing member 31 that is fixedly attached to the housing 2 side. Therefore, the moving member 32, that is, the lens barrel 11 can be quickly moved from an arbitrary position to an arbitrary position, and the adjustment operation of the projector device 1 can be facilitated. That is, with respect to the movement in the oblique direction, the operability can be improved because it can be moved directly in the oblique direction by one operation instead of the combination of the vertical direction operation and the horizontal direction operation as in the prior art.

また、この移動操作は、操作手段35の操作スティック111の操作により容易にでき、操作性を向上できる。すなわち、操作スティック111は、固定部材31に対して固定された位置を支点122aとして支持され、この支点122aを中心に所定面に対して交差する方向及び角度を自在に変えることができるとともに、連結部材92で移動部材32に連結されたため、操作スティック111を操作し、この操作スティック111の所定面に対する角度及び方向を変えることにより、操作スティック111の操作方向と操作量に応じ、連結部材92を介して移動部材32を自在に平面上を移動させることができる。 Further, this moving operation can be easily performed by operating the operation stick 111 of the operation means 35, and the operability can be improved. That is, the operation stick 111 is supported as a fulcrum 122a at a position fixed with respect to the fixing member 31, and the direction and angle intersecting a predetermined plane with the fulcrum 122a as a center can be freely changed and connected. Since the operation stick 111 is operated by changing the angle and direction with respect to a predetermined surface of the operation stick 111, the connection member 92 is changed according to the operation direction and the operation amount of the operation stick 111. Thus, the moving member 32 can be freely moved on the plane.

また、移動部材32と固定部材31との間に、移動部材32が鏡筒11を含めた自重により落下しないように摩擦を発生させる摩擦手段33を備えたため、移動部材32すなわち鏡筒11を所定の位置に容易に保持できる。 In addition, since the moving member 32 and the lens barrel 11 are provided with friction means 33 that generates friction so that the moving member 32 does not fall due to its own weight including the lens barrel 11 between the moving member 32 and the fixed member 31, Can be easily held in the position.

ここで、操作手段35は、操作スティック111の操作軸121の長手寸法を大きくすることにより、図６(b)に示すように、固定部材31に支持された支点122aに対し、移動部材32に連結された第１の軸受部94を作用点とし、操作軸121の例えば先端部を捜査力を加える力点とすることにより、てこの原理を利用して、小さい力で、摩擦手段33の摩擦力に抗して移動部材32を移動させることができる。そこで、摩擦手段33の摩擦力を大きくして移動部材32すなわち鏡筒11の位置を安定して保持できるとともに、比較的小さい力で移動部材32を移動させることができ、位置の安定と操作性の向上とを両立できる。 Here, by increasing the longitudinal dimension of the operation shaft 121 of the operation stick 111, the operation means 35 moves the moving member 32 from the fulcrum 122a supported by the fixed member 31 as shown in FIG. By using the coupled first bearing portion 94 as an action point and using, for example, the tip of the operation shaft 121 as a force point for applying a search force, the frictional force of the friction means 33 can be obtained with a small force using the lever principle. The moving member 32 can be moved against this. Therefore, the frictional force of the friction means 33 can be increased to stably hold the position of the moving member 32, that is, the lens barrel 11, and the moving member 32 can be moved with a relatively small force. It is possible to achieve both improvement.

また、移動部材32と固定部材31との間に、移動部材32が固定部材31に対して光軸Ｏを中心として回転することを阻止する回転規制手段34を備えたため、移動部材32すなわち鏡筒11を、回転することなく所定の平面に沿って所望の位置に容易に移動させることができ、操作性を向上できる。 Further, since the rotation member 34 is provided between the moving member 32 and the fixed member 31 to prevent the moving member 32 from rotating about the optical axis O with respect to the fixed member 31, the moving member 32, that is, the lens barrel is provided. 11 can be easily moved to a desired position along a predetermined plane without rotating, and operability can be improved.

そして、この回転規制手段34は、光軸Ｏと交差し基準面50と平行な方向を軸方向とする第１の軸部101及びこの第１の軸部101に平行な第２の軸部102を備えたスイングガイド105を用い、これら軸部101，102を固定部材31側と移動部材32側とに回転可能に軸支し、かつ、少なくとも一方、本実施の形態では、第１の軸部101を移動部材32側の第１被連結部84に軸方向に沿って移動可能に支持したため、簡略な構成で、回転規制手段34を構成できる。 The rotation restricting means 34 includes a first shaft portion 101 having an axial direction that intersects the optical axis O and is parallel to the reference plane 50, and a second shaft portion 102 that is parallel to the first shaft portion 101. The shaft 101, 102 is pivotally supported on the fixed member 31 side and the moving member 32 side, and at least one of the first shaft portion is used in the present embodiment. Since 101 is supported by the first connected portion 84 on the moving member 32 side so as to be movable in the axial direction, the rotation restricting means 34 can be configured with a simple configuration.

また、この回転規制手段34は、このスイングガイド105の回動する角度を規制することにより、移動部材32の移動範囲を容易に規制することができる。 Further, the rotation restricting means 34 can easily restrict the moving range of the moving member 32 by restricting the rotation angle of the swing guide 105.

さらに、この回転規制手段34は、互いに軸方向が直交する２カ所に設けられ、本実施の形態では、水平方向Ｈを軸方向とする位置と垂直方向Ｖを軸方向とする位置とに設けたため、移動部材32を垂直方向Ｖ及び水平方向Ｈに安定して円滑に移動させることができる。 Further, the rotation restricting means 34 is provided at two positions where the axial directions are orthogonal to each other. In the present embodiment, the rotation restricting means 34 is provided at a position where the horizontal direction H is the axial direction and a position where the vertical direction V is the axial direction. The moving member 32 can be stably and smoothly moved in the vertical direction V and the horizontal direction H.

また、上記の各構成について、送りねじやギア列を用いる必要がなく、構造を簡略化して、製造コストを低減できる。 Moreover, it is not necessary to use a feed screw or a gear train for each of the above-described configurations, and the structure can be simplified and the manufacturing cost can be reduced.

そして、このような鏡筒支持装置12を備えることにより、調整が容易で製造コストを低減可能なプロジェクタ装置１を提供できる。 By providing such a lens barrel support device 12, it is possible to provide the projector device 1 that can be easily adjusted and can reduce the manufacturing cost.

なお、上記の実施の形態では、回転規制手段34は、水平方向Ｈを軸方向とする位置と垂直方向Ｖを軸方向とする位置とにそれぞれスイングガイド105を配置したが、この構成に限られず、いずれか一方のみを設け、あるいは、３カ所以上に設けることもできる。また、回転規制手段34のスイングガイド105は、垂直方向Ｖあるいは水平方向Ｈを軸方向とする構成に限られず、例えば、図１に２点鎖線Ａで示すように、斜め方向を軸方向として配置することもできる。 In the above embodiment, the rotation restricting means 34 has the swing guides 105 disposed at positions where the horizontal direction H is the axial direction and the vertical direction V is the axial direction. However, the present invention is not limited to this configuration. Only one of them can be provided, or three or more can be provided. Further, the swing guide 105 of the rotation restricting means 34 is not limited to the configuration in which the vertical direction V or the horizontal direction H is an axial direction. For example, as shown by a two-dot chain line A in FIG. You can also

また、各スイングガイド105を回転可能に支持する第１及び第２の被連結部84，52について、第１被連結部84のみを軸方向に沿って移動可能に支持したが、この構成に限られず、第２被連結部52を軸方向に沿って移動可能にしても良く、また、第１及び第２の被連結部84，52の両方を移動可能とすることもできる。 Moreover, about the 1st and 2nd to-be-connected parts 84 and 52 which support each swing guide 105 rotatably, only the 1st to-be-connected part 84 was supported so that movement along an axial direction was carried out, However, it is not restricted to this structure Instead, the second connected portion 52 may be movable along the axial direction, and both the first and second connected portions 84 and 52 may be movable.

また、摩擦手段33は、摩擦体81とスプリング82とで構成するほか、弾性ゴム体などで構成することもでき、また、移動部材32のシフトベース71に一体的に形成することもできる。あるいは、摩擦手段33は、固定手段31側に設けることもできる。 In addition to the friction member 81 and the spring 82, the friction means 33 can be formed of an elastic rubber body or the like, and can be formed integrally with the shift base 71 of the moving member 32. Alternatively, the friction means 33 can be provided on the fixing means 31 side.

さらに、操作手段35の操作スティック111の前端部に、操作者が把持しやすい把持部を設けることもできる。 Furthermore, a grip portion that is easy for an operator to grip can be provided at the front end portion of the operation stick 111 of the operation means 35.

また、プロジェクタ装置１の照明光学系、投射光学系、及び変調手段などについては、適宜の構成を採ることが可能であり、例えば、赤(Ｒ)、緑(Ｇ)、青(Ｂ)のカラーフィルターを用いた１枚の表示デバイスを用いて、ダイクロイックミラーD1，D2やダイクロイッククロスプリズムDXPを用いない構成とすることもできる。また、変調手段としての表示デバイスについて、透過型の液晶表示素子を用いた構成について説明したが、この構成に限られず、反射型の表示デバイスなどを用いた構成についても適用できる。 In addition, the illumination optical system, the projection optical system, and the modulation means of the projector apparatus 1 can take appropriate configurations, for example, red (R), green (G), and blue (B) colors. A single display device using a filter may be used so that the dichroic mirrors D1 and D2 and the dichroic cross prism DXP are not used. In addition, although the configuration using the transmissive liquid crystal display element has been described for the display device as the modulation means, the present invention is not limited to this configuration, and a configuration using a reflective display device or the like can also be applied.

本発明は、液晶表示素子を用いたプロジェクタ装置の他、種々の表示デバイスを用いたプロジェクタ装置に適用できる。 The present invention can be applied to a projector apparatus using various display devices in addition to a projector apparatus using a liquid crystal display element.

本発明の鏡筒支持装置の一実施の形態を示す分解斜視図である。It is a disassembled perspective view which shows one Embodiment of the lens-barrel support apparatus of this invention. 同上鏡筒支持装置の説明図である。 It is explanatory drawing of a lens-barrel support apparatus same as the above . 同上鏡筒支持装置を示す分解斜視図である。It is a disassembled perspective view which shows a lens-barrel support apparatus same as the above. 同上鏡筒支持装置の平面図である。It is a top view of a lens-barrel support apparatus same as the above. 同上鏡筒支持装置の一部の側面図である。It is a side view of a part of the same barrel support device. 同上鏡筒支持装置の動作の説明図であり、(a)は平面図、(b)は原理の説明図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view, (b) is explanatory drawing of a principle. 同上鏡筒支持装置の動作の説明図であり、(a)は水平方向の中央に移動させた状態の平面図、(b)は(a)の一部を拡大した断面図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view of the state moved to the center of a horizontal direction, (b) is sectional drawing to which a part of (a) was expanded. 同上鏡筒支持装置の動作の説明図であり、(a)は水平方向の一側に移動させた状態の平面図、(b)は(a)の一部を拡大した断面図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view of the state moved to the one side of a horizontal direction, (b) is sectional drawing to which a part of (a) was expanded. 同上鏡筒支持装置の動作の説明図であり、(a)は水平方向の他側に移動させた状態の平面図、(b)は(a)の一部を拡大した断面図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view of the state moved to the other side of the horizontal direction, (b) is sectional drawing to which a part of (a) was expanded. 同上鏡筒支持装置の動作の説明図であり、(a)は垂直方向の中央に移動させた状態の平面図、(b)は(a)の一部を拡大した断面図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view of the state moved to the center of a perpendicular direction, (b) is sectional drawing to which a part of (a) was expanded. 同上鏡筒支持装置の動作の説明図であり、(a)は垂直方向の上側に移動させた状態の平面図、(b)は(a)の一部を拡大した断面図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view of the state moved to the upper side of the perpendicular direction, (b) is sectional drawing to which a part of (a) was expanded. 同上鏡筒支持装置の動作の説明図であり、(a)は垂直方向の下側に移動させた状態の平面図、(b)は(a)の一部を拡大した断面図である。It is explanatory drawing of operation | movement of a lens-barrel support apparatus same as the above, (a) is a top view of the state moved to the downward direction of the perpendicular direction, (b) is sectional drawing to which a part of (a) was expanded.

１プロジェクタ装置
２光学機器本体としての筐体
３光源
11 鏡筒
12 鏡筒支持装置
31 固定部材
32 移動部材
33 摩擦手段
34 回転規制手段
35 操作手段
52 第２被連結部
84 第１被連結部
94 第１の軸受部
101 第１の軸部
102 第２の軸部
105 連結部材としてのスイングガイド
111 杆部材としての操作スティック
121 操作軸
122 支点部としての球頭部
128 第２の軸受部としての端板部
Ｌr，Ｌg，Ｌb 光変調手段としてのＬＣＤパネル
Ｏ光軸 DESCRIPTION OF SYMBOLS 1 Projector apparatus 2 Case as optical apparatus main body 3 Light source
11 Lens tube
12 Lens barrel support device
31 Fixing member
32 Moving member
33 Friction means
34 Rotation restricting means
35 Operating means
52 Second connected part
84 First connected part
94 First bearing
101 First shaft
102 Second shaft
105 Swing guide as a connecting member
111 Operation stick as a heel member
121 Operation axis
122 Ball head as fulcrum
128 End plate portion as second bearing portion Lr, Lg, Lb LCD panel as light modulation means O Optical axis

Claims

A lens barrel support device that supports the lens barrel movably along the direction intersecting the optical axis with respect to the optical device main body,
A moving member to which the lens barrel is attached;
A fixing member that supports the moving member so as to be movable in all directions along a plane intersecting the optical axis;
An operation means for moving the movable member by pushing the movable member with respect to the fixed member;
A rotation restricting means for restricting the movement of the moving member relative to the fixed member in the rotation direction about the optical axis;
Comprising
This rotation restricting means
A connecting member having a first shaft portion whose axial direction is a direction intersecting the optical axis and a second shaft portion parallel to the first shaft portion;
A first connected portion that is provided on the moving member side and in which the first shaft portion is rotatably connected;
A second connected portion provided on the fixing member side, the second shaft portion being rotatably connected to the second shaft portion;
At least one of the connecting portion between the first shaft portion and the first connected portion and the connecting portion between the second shaft portion and the second connected portion includes the shaft portion and the connected portion. barrel supporting device you characterized by being relatively movably connected in the axial direction of the shaft portion.

The friction means is disposed between the moving member and the fixed member, and holds the position of the moving member against the dead weight of the moving member and the lens barrel attached to the moving member. The lens barrel support device according to 1.

The operation means is
An eaves member provided with an operating shaft and a fulcrum part;
A first bearing portion that is movably connected to the operation shaft and is attached to either the moving member side or the fixed member side;
3. The lens barrel support according to claim 1, further comprising a second bearing portion that supports the fulcrum portion in a rotatable manner and is attached to one of the moving member side and the fixed member side. apparatus.

A light source;
A light modulation means for modulating the light emitted from the light source;
A lens barrel for projecting the light beam modulated by the light modulation means;
An optical device body;
A projector apparatus comprising: the lens barrel support device according to any one of claims 1 to 3 , wherein the lens barrel is movable with respect to the optical device main body.