JPWO2020054550A1 - Head-up display device - Google Patents

Head-up display device Download PDF

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JPWO2020054550A1
JPWO2020054550A1 JP2020545954A JP2020545954A JPWO2020054550A1 JP WO2020054550 A1 JPWO2020054550 A1 JP WO2020054550A1 JP 2020545954 A JP2020545954 A JP 2020545954A JP 2020545954 A JP2020545954 A JP 2020545954A JP WO2020054550 A1 JPWO2020054550 A1 JP WO2020054550A1
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bearing
housing
rotating shaft
bearing holding
mirror
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JP7338629B2 (en
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寛規 加藤
寛規 加藤
恭平 荻野
恭平 荻野
正彦 水落
正彦 水落
守 竹之内
守 竹之内
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Nippon Seiki Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)

Abstract

軸受け部材の筐体への組み付けが容易となるヘッドアップディスプレイ装置を提供する。ヘッドアップディスプレイ装置は、表示光を出射する表示部と、表示部からの表示光をフロントガラスに向けて反射させるミラーユニットと、ミラーユニットを収容する筐体６０と、ミラーユニットを回転可能に支持する軸受け部材５８ａと、を備える。ミラーユニットは、表示光を反射する鏡面を含む凹面鏡と、凹面鏡を保持するホルダ本体部、及び回転軸Ａｘに沿って延び、軸受け部材５８ａにより回転可能に支持される回転軸部３５ａを有する凹面鏡ホルダと、を備える。筐体６０は、軸受け部材５８ａを保持するように筐体６０の内面に凹状に形成される軸受け保持部６２ａを備える。軸受け保持部６２ａは、回転軸Ａｘに沿うＸ方向におけるホルダ本体部から遠い端部に位置し、筐体６０の外部に開口した状態で露出する露出端部６２ｄを備える。Provided is a head-up display device that facilitates assembly of a bearing member to a housing. The head-up display device rotatably supports a display unit that emits display light, a mirror unit that reflects the display light from the display unit toward the windshield, a housing 60 that houses the mirror unit, and a mirror unit. The bearing member 58a is provided. The mirror unit is a concave mirror holder having a concave mirror including a mirror surface that reflects display light, a holder main body that holds the concave mirror, and a rotating shaft portion 35a that extends along the rotating shaft Ax and is rotatably supported by a bearing member 58a. And. The housing 60 includes a bearing holding portion 62a formed in a concave shape on the inner surface of the housing 60 so as to hold the bearing member 58a. The bearing holding portion 62a is located at an end portion far from the holder main body portion in the X direction along the rotation axis Ax, and includes an exposed end portion 62d that is exposed in a state of being open to the outside of the housing 60.

Description

本発明は、ヘッドアップディスプレイ装置に関する。 The present invention relates to a head-up display device.

従来から、表示光をフロントガラス等に照射することにより虚像を表示するヘッドアップディスプレイ装置が知られている。例えば、特許文献１に記載のヘッドアップディスプレイ装置は、表示光を反射させる凹面鏡と、凹面鏡を保持するホルダと、ホルダの回転軸を回転可能に支持するベアリング（軸受け部材）と、ベアリングを筐体の所定位置に保持するベアリング保持部と、を備える。 Conventionally, a head-up display device that displays a virtual image by irradiating a windshield or the like with display light has been known. For example, the head-up display device described in Patent Document 1 includes a concave mirror that reflects display light, a holder that holds the concave mirror, a bearing (bearing member) that rotatably supports the rotation axis of the holder, and a housing of the bearing. It is provided with a bearing holding portion for holding the bearing in a predetermined position.

特開２０１７−９０６６７号公報Japanese Unexamined Patent Publication No. 2017-90667

本願発明者らは、ベアリング保持部を筐体と一体で形成することを検討している。しかしながら、この構成では、ベアリングをベアリング保持部に圧入する際、ベアリングを筐体の内面に押し込む必要があるため、組み付け作業が困難であった。 The inventors of the present application are considering forming the bearing holding portion integrally with the housing. However, in this configuration, when the bearing is press-fitted into the bearing holding portion, it is necessary to push the bearing into the inner surface of the housing, which makes the assembly work difficult.

本発明は、上記実状を鑑みてなされたものであり、軸受け部材の筐体への組み付けが容易となるヘッドアップディスプレイ装置を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a head-up display device that facilitates assembly of a bearing member to a housing.

上記目的を達成するため、本発明の観点に係るヘッドアップディスプレイ装置は、表示光を出射する表示部と、前記表示部からの前記表示光を被投射部材に向けて反射させるミラーユニットと、前記ミラーユニットを収容する筐体と、前記ミラーユニットを回転軸を中心に回転可能に支持する軸受け部材と、を備え、前記ミラーユニットは、前記表示光を反射する鏡面を含む反射鏡と、前記反射鏡を保持するホルダ本体部、及び前記回転軸に沿って延び、前記軸受け部材により回転可能に支持される回転軸部を有する反射鏡ホルダと、を備え、前記筐体は、前記軸受け部材を保持するように前記筐体の内面に凹状に形成される軸受け保持部を備え、前記軸受け保持部は、前記回転軸に沿う方向における前記ホルダ本体部から遠い端部に位置し、前記筐体の外部に開口した状態で露出する露出端部を備える。 In order to achieve the above object, the head-up display device according to the viewpoint of the present invention includes a display unit that emits display light, a mirror unit that reflects the display light from the display unit toward a projected member, and the above. The mirror unit includes a housing for accommodating the mirror unit and a bearing member that rotatably supports the mirror unit about a rotation axis. The mirror unit includes a reflecting mirror including a mirror surface that reflects the display light, and the reflection. The housing includes a holder main body for holding a mirror and a reflecting mirror holder having a rotating shaft portion extending along the rotating shaft and rotatably supported by the bearing member, and the housing holds the bearing member. A bearing holding portion formed in a concave shape on the inner surface of the housing is provided, and the bearing holding portion is located at an end portion far from the holder main body portion in a direction along the rotation axis, and is located outside the housing. It is provided with an exposed end that is exposed in an open state.

本発明によれば、ヘッドアップディスプレイ装置において、軸受け部材の筐体への組み付けが容易となる。 According to the present invention, in the head-up display device, the bearing member can be easily assembled to the housing.

本発明の第１の実施形態に係るヘッドアップディスプレイ装置が搭載された車両の模式図である。It is a schematic diagram of the vehicle which mounted the head-up display device which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係るヘッドアップディスプレイ装置の構成を示す概略図である。It is the schematic which shows the structure of the head-up display device which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係るヘッドアップディスプレイ装置を示す正面図である。It is a front view which shows the head-up display device which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係るヘッドアップディスプレイ装置の筐体内部を示す斜視図である。It is a perspective view which shows the inside of the housing of the head-up display device which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る軸受けカバーが取り外された状態のヘッドアップディスプレイ装置を示す斜視図である。It is a perspective view which shows the head-up display device in the state which the bearing cover which concerns on 1st Embodiment of this invention is removed. 本発明の第１の実施形態に係る軸受け部材が装着された軸受け保持部を示す斜視図である。It is a perspective view which shows the bearing holding part which attached the bearing member which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る軸受け部材が装着される前の軸受け保持部を示す斜視図である。It is a perspective view which shows the bearing holding part before the bearing member which concerns on 1st Embodiment of this invention is attached. 本発明の第１の実施形態に係る軸受け部材及び軸受け保持部等を示す断面図である。It is sectional drawing which shows the bearing member, the bearing holding part and the like which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る凹面鏡ホルダを示す斜視図である。It is a perspective view which shows the concave mirror holder which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る凹面鏡駆動ユニットを示す斜視図である。It is a perspective view which shows the concave mirror drive unit which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る回転軸部及び軸受け部材を示す斜視図である。It is a perspective view which shows the rotating shaft part and the bearing member which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る回転軸部及び軸受け部材を示す斜視図である。It is a perspective view which shows the rotating shaft part and the bearing member which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る回転軸部及び軸受け部材を示す斜視図である。It is a perspective view which shows the rotating shaft part and the bearing member which concerns on 1st Embodiment of this invention. 本発明の第２の実施形態に係る回転軸部及び軸受け保持部を示す断面図である。It is sectional drawing which shows the rotating shaft part and the bearing holding part which concerns on 2nd Embodiment of this invention. 本発明の第２の実施形態に係るレバー部及び把持部を示す断面図である。It is sectional drawing which shows the lever part and the grip part which concerns on 2nd Embodiment of this invention. 本発明の第２の実施形態に係る図１４の拡大図である。FIG. 14 is an enlarged view of FIG. 14 according to a second embodiment of the present invention. 本発明の第２の実施形態に係る回転軸部及び軸受け保持部を示す断面図である。It is sectional drawing which shows the rotating shaft part and the bearing holding part which concerns on 2nd Embodiment of this invention. 本発明の第２の実施形態に係るレバー部及び把持部を示す断面図である。It is sectional drawing which shows the lever part and the grip part which concerns on 2nd Embodiment of this invention. 本発明の第２の実施形態に係る回転軸部及び軸受け保持部を示す断面図である。It is sectional drawing which shows the rotating shaft part and the bearing holding part which concerns on 2nd Embodiment of this invention. 本発明の第２の実施形態に係るレバー部及び把持部を示す断面図である。It is sectional drawing which shows the lever part and the grip part which concerns on 2nd Embodiment of this invention.

（第１の実施形態）
本発明に係るヘッドアップディスプレイ装置の第１の実施形態について、図面を参照して説明する。(First Embodiment)
A first embodiment of the head-up display device according to the present invention will be described with reference to the drawings.

図１に示すように、ヘッドアップディスプレイ装置１００は、車両２００のダッシュボード内に設置される。ヘッドアップディスプレイ装置１００は、車両２００の被投射部材の一例であるフロントガラス２０１に向けて像を表す表示光Ｌを出射する。表示光Ｌはフロントガラス２０１で反射して視認者１（主に車両２００の運転者）に到達する。これにより、虚像Ｖが視認者１により視認可能に表示される。 As shown in FIG. 1, the head-up display device 100 is installed in the dashboard of the vehicle 200. The head-up display device 100 emits display light L representing an image toward the windshield 201, which is an example of the projected member of the vehicle 200. The display light L is reflected by the windshield 201 and reaches the viewer 1 (mainly the driver of the vehicle 200). As a result, the virtual image V is visually displayed by the viewer 1.

ヘッドアップディスプレイ装置１００は、図２に示すように、表示部１０と、折り返しミラー部材２０と、ミラーユニット３０と、ミラー駆動ユニット４０と、筐体６０と、制御部７０と、図３に示すように、軸受けカバー９０と、図９に示すように、軸受け部材５８ａ，５８ｂと、を備える。
なお、以下の説明では、ミラーユニット３０の凹面鏡３１を正面から見たときの方向に基づき、左右、上下、表裏が規定されている。図３〜図２０においては、左はＬｆと略記され、右はＲｔと略記され、上はＵｐと略記され、下はＤｎと略記され、表はＦｒと略記され、裏はＢｋと略記される。また、左右方向はＸ方向と一致し、上下方向はＹ方向と一致し、表裏方向はＺ方向に一致する。As shown in FIG. 2, the head-up display device 100 includes a display unit 10, a folded mirror member 20, a mirror unit 30, a mirror drive unit 40, a housing 60, a control unit 70, and FIG. As described above, the bearing cover 90 and the bearing members 58a and 58b are provided as shown in FIG.
In the following description, left and right, top and bottom, and front and back are defined based on the direction when the concave mirror 31 of the mirror unit 30 is viewed from the front. In FIGS. 3 to 20, the left is abbreviated as Lf, the right is abbreviated as Rt, the upper is abbreviated as Up, the lower is abbreviated as Dn, the front is abbreviated as Fr, and the back is abbreviated as Bk. .. Further, the left-right direction coincides with the X direction, the vertical direction coincides with the Y direction, and the front-back direction coincides with the Z direction.

図２に示すように、表示部１０は、制御部７０による制御のもと、像を表す表示光Ｌを出射する。表示部１０は、例えば、何れも図示しない光源及び液晶表示パネルを備える。 As shown in FIG. 2, the display unit 10 emits display light L representing an image under the control of the control unit 70. The display unit 10 includes, for example, a light source and a liquid crystal display panel (not shown).

折り返しミラー部材２０は、例えば平面鏡からなり、表示部１０が出射した表示光Ｌをミラーユニット３０に向けて反射させる。折り返しミラー部材２０は、例えば、ポリカーボネート等の樹脂からなる基材にアルミニウムが積層されてなる。 The folded mirror member 20 is made of, for example, a plane mirror, and reflects the display light L emitted by the display unit 10 toward the mirror unit 30. The folded mirror member 20 is made of, for example, aluminum laminated on a base material made of a resin such as polycarbonate.

筐体６０は、非透光性の樹脂又は金属で形成されるとともに、中空の略直方体をなす。筐体６０には、フロントガラス２０１に対向する位置に開口部６１が形成されている。筐体６０は、開口部６１を塞ぐ湾曲板状の窓部５０を備える。この窓部５０は、表示光Ｌが透過するアクリル等の透光性の樹脂からなる。筐体６０内には、ヘッドアップディスプレイ装置１００の各構成が収納されている。 The housing 60 is made of a non-transmissive resin or metal and forms a hollow rectangular parallelepiped. The housing 60 is formed with an opening 61 at a position facing the windshield 201. The housing 60 includes a curved plate-shaped window portion 50 that closes the opening 61. The window portion 50 is made of a translucent resin such as acrylic through which the display light L is transmitted. Each configuration of the head-up display device 100 is housed in the housing 60.

図４に示すように、筐体６０は、凹面鏡ホルダ３５の後述する一対の回転軸部３５ａ，３５ｂを受ける一対の軸受け保持部６２ａ，６２ｂを有する。軸受け保持部６２ａ，６２ｂは、Ｘ方向に沿って並ぶように配置される。軸受け保持部６２ａ，６２ｂは、筐体６０内に回転軸部３５ａ，３５ｂを保持し、窓部５０に向けて開口するＵ字板状をなす。軸受け保持部６２ａ，６２ｂは、筐体６０の内面に凹状に形成される。図８に示すように、軸受け保持部６２ａ，６２ｂは、筐体６０の内外を貫通する穴を有する凹状の溝として形成されている。言い換えると、軸受け保持部６２ａ，６２ｂは、筐体６０の内部と外部を繋ぐトンネル状に形成される。また、軸受け保持部６２ａ，６２ｂは回転軸部３５ａ，３５ｂに沿って延び、軸受け保持部６２ａ，６２ｂの一端は筐体６０の内部に露出し、軸受け保持部６２ａ，６２ｂの他端は筐体６０の外部に露出する。 As shown in FIG. 4, the housing 60 has a pair of bearing holding portions 62a, 62b that receive a pair of rotating shaft portions 35a, 35b, which will be described later, of the concave mirror holder 35. The bearing holding portions 62a and 62b are arranged so as to be arranged along the X direction. The bearing holding portions 62a and 62b hold the rotating shaft portions 35a and 35b in the housing 60 and form a U-shaped plate that opens toward the window portion 50. The bearing holding portions 62a and 62b are formed in a concave shape on the inner surface of the housing 60. As shown in FIG. 8, the bearing holding portions 62a and 62b are formed as concave grooves having holes penetrating the inside and outside of the housing 60. In other words, the bearing holding portions 62a and 62b are formed in a tunnel shape connecting the inside and the outside of the housing 60. Further, the bearing holding portions 62a and 62b extend along the rotating shaft portions 35a and 35b, one end of the bearing holding portions 62a and 62b is exposed inside the housing 60, and the other end of the bearing holding portions 62a and 62b is the housing. Exposed to the outside of 60.

図５に示すように、軸受け保持部６２ａ，６２ｂは、筐体６０の外部に露出するように形成される。
詳しくは、図７に示すように、軸受け保持部６２ａは、裏側に向かうにつれて下側に近づくように斜めに延びる。
軸受け保持部６２ａは、露出端部６２ｄと、内端部６２ｅと、開口端部６２ｆと、保持端部６２ｃと、を備える。
露出端部６２ｄは、筐体６０の外部に開口しつつ露出し、軸受け保持部６２ａにおけるＸ方向においてホルダ本体部３４から遠い端部である。露出端部６２ｄが筐体６０の外部に開口しつつ露出することにより、露出端部６２ｄから軸受け部材５８ａが軸受け保持部６２ａ内に圧入可能となる。
また、内端部６２ｅは、Ｘ方向において露出端部６２ｄと反対側に位置する。内端部６２ｅは、軸受け保持部６２ａにおけるホルダ本体部３４に近い端部であり、筐体６０の内部空間に位置するホルダ本体部３４に向かって開口する。
また、開口端部６２ｆは、筐体６０の内部空間に向けて上側及び表側へ開口する。開口端部６２ｆには、ミラーユニット３０を筐体６０に組み付ける際に回転軸部３５ａが挿入される。
また、保持端部６２ｃは、Ｙ方向において開口端部６２ｆと反対側に位置し、軸受け部材５８ａを把持するように軸受け部材５８ａの外周に沿う略Ｃ字板状に形成される。
なお、軸受け保持部６２ｂは軸受け保持部６２ａと同様に構成される。As shown in FIG. 5, the bearing holding portions 62a and 62b are formed so as to be exposed to the outside of the housing 60.
Specifically, as shown in FIG. 7, the bearing holding portion 62a extends obliquely toward the lower side toward the back side.
The bearing holding portion 62a includes an exposed end portion 62d, an inner end portion 62e, an open end portion 62f, and a holding end portion 62c.
The exposed end portion 62d is an end portion that is exposed while opening to the outside of the housing 60 and is far from the holder main body portion 34 in the X direction of the bearing holding portion 62a. When the exposed end portion 62d is exposed while opening to the outside of the housing 60, the bearing member 58a can be press-fitted into the bearing holding portion 62a from the exposed end portion 62d.
Further, the inner end portion 62e is located on the opposite side of the exposed end portion 62d in the X direction. The inner end portion 62e is an end portion of the bearing holding portion 62a close to the holder main body portion 34, and opens toward the holder main body portion 34 located in the internal space of the housing 60.
Further, the opening end portion 62f opens to the upper side and the front side toward the internal space of the housing 60. A rotating shaft portion 35a is inserted into the opening end portion 62f when the mirror unit 30 is assembled to the housing 60.
Further, the holding end portion 62c is located on the opposite side of the opening end portion 62f in the Y direction, and is formed in a substantially C-shaped plate shape along the outer circumference of the bearing member 58a so as to grip the bearing member 58a.
The bearing holding portion 62b is configured in the same manner as the bearing holding portion 62a.

図５及び図６に示すように、筐体６０の外面には、軸受け保持部６２ａ，６２ｂを収容する収容凹部６３ａ，６３ｂが形成される。
収容凹部６３ａ，６３ｂは直方体をなし、軸受け保持部６２ａ，６２ｂは、収容凹部６３ａ，６３ｂにおけるＸ方向のヘッドアップディスプレイ装置１００の中央に近い側面６３ｃに位置する。
収容凹部６３ａ，６３ｂにおける側面６３ｃにＸ方向に対向する側壁には、治具用凹部６３ｄが形成される。治具用凹部６３ｄは、軸受け保持部６２ａ，６２ｂとＸ方向に対向して位置し、軸受け保持部６２ａ，６２ｂに軸受け部材５８ａ，５８ｂを圧入する際に使用される図示しない治具が通過するために形成される。As shown in FIGS. 5 and 6, accommodating recesses 63a and 63b for accommodating bearing holding portions 62a and 62b are formed on the outer surface of the housing 60.
The accommodating recesses 63a and 63b form a rectangular parallelepiped, and the bearing holding portions 62a and 62b are located on the side surfaces 63c of the accommodating recesses 63a and 63b near the center of the head-up display device 100 in the X direction.
A jig recess 63d is formed on the side wall of the accommodating recesses 63a and 63b facing the side surface 63c in the X direction. The jig recess 63d is located so as to face the bearing holding portions 62a and 62b in the X direction, and a jig (not shown) used for press-fitting the bearing members 58a and 58b into the bearing holding portions 62a and 62b passes through the recess 63d. Formed for.

図２に示すように、ミラーユニット３０は、表示光Ｌを反射させる反射鏡の一例である凹面鏡３１と、凹面鏡３１を保持する凹面鏡ホルダ３５と、を備える。 As shown in FIG. 2, the mirror unit 30 includes a concave mirror 31 which is an example of a reflecting mirror that reflects the display light L, and a concave mirror holder 35 that holds the concave mirror 31.

凹面鏡３１は、Ｘ方向に長い略長方形の板状に形成され、Ｘ方向に沿って湾曲している。凹面鏡３１は、凹面鏡３１の表側に形成され光を反射させる鏡面３１ａを備える。凹面鏡３１は、凹状の曲面を有する合成樹脂製の基材にアルミニウム等の金属製の反射材が蒸着されることにより形成される。凹面鏡３１は、鏡面３１ａにて折り返しミラー部材２０で反射した表示光Ｌをフロントガラス２０１に向けて拡大させつつ反射させる。また、凹面鏡３１は、凹面鏡ホルダ３５とともに、図２の紙面垂直方向に延びる回転軸Ａｘを中心に回転可能に構成されている。 The concave mirror 31 is formed in the shape of a substantially rectangular plate long in the X direction, and is curved along the X direction. The concave mirror 31 includes a mirror surface 31a formed on the front side of the concave mirror 31 to reflect light. The concave mirror 31 is formed by depositing a metal reflective material such as aluminum on a synthetic resin base material having a concave curved surface. The concave mirror 31 reflects the display light L reflected by the folded mirror member 20 on the mirror surface 31a while expanding it toward the windshield 201. Further, the concave mirror 31 is configured to be rotatable around the rotation axis Ax extending in the direction perpendicular to the paper surface of FIG. 2 together with the concave mirror holder 35.

凹面鏡ホルダ３５は、樹脂により形成され、凹面鏡３１をその裏面から保持する。図４に示すように、凹面鏡ホルダ３５は、筐体６０内で回転軸Ａｘを中心に回転可能に支持される。
詳しくは、図９に示すように、凹面鏡ホルダ３５は、ホルダ本体部３４と、回転軸部３５ａ，３５ｂと、レバー部３８と、を備える。
ホルダ本体部３４は、凹面鏡３１の裏面に沿う曲面を有する板状をなす。回転軸部３５ａ，３５ｂは、ホルダ本体部３４の右側側面と左側側面に位置し、回転軸Ａｘに沿って延びる円柱状をなす。The concave mirror holder 35 is made of resin and holds the concave mirror 31 from the back surface thereof. As shown in FIG. 4, the concave mirror holder 35 is rotatably supported in the housing 60 about the rotation axis Ax.
Specifically, as shown in FIG. 9, the concave mirror holder 35 includes a holder main body portion 34, rotating shaft portions 35a and 35b, and a lever portion 38.
The holder main body 34 has a plate shape having a curved surface along the back surface of the concave mirror 31. The rotating shaft portions 35a and 35b are located on the right side surface and the left side side surface of the holder main body portion 34, and form a columnar shape extending along the rotating shaft Ax.

図１３に示すように、回転軸部３５ａは、回転軸部３５ａの周面に突起部３４ｃを有する。突起部３４ｃは、回転軸部３５ａの周面に凸状に形成される。突起部３４ｃは、略三角錐状をなす。すなわち、突起部３４ｃは、回転軸部３５ａの先端に向かうにつれて周面を基準として高さが低くなるように形成され、かつ、回転軸部３５ａの周方向において突起部３４ｃの中心から離れるにつれて高さが周面を基準として低くなるように形成される。回転軸部３５ｂも回転軸部３５ａと同様に構成される。 As shown in FIG. 13, the rotating shaft portion 35a has a protrusion 34c on the peripheral surface of the rotating shaft portion 35a. The protruding portion 34c is formed in a convex shape on the peripheral surface of the rotating shaft portion 35a. The protrusion 34c has a substantially triangular pyramid shape. That is, the protrusion 34c is formed so that the height becomes lower with respect to the peripheral surface toward the tip of the rotation shaft portion 35a, and becomes higher as the distance from the center of the protrusion 34c in the circumferential direction of the rotation shaft portion 35a. It is formed so that the height is lower than the peripheral surface. The rotating shaft portion 35b is also configured in the same manner as the rotating shaft portion 35a.

図９に示すように、レバー部３８は、ホルダ本体部３４の下面の中央に位置し、下方向に延びる。レバー部３８は、図１０に示すように、後述する凹面鏡駆動ユニット７１から外力が加えられる。これにより、凹面鏡ホルダ３５は回転軸Ａｘを中心に凹面鏡３１とともに回転する。 As shown in FIG. 9, the lever portion 38 is located at the center of the lower surface of the holder main body portion 34 and extends downward. As shown in FIG. 10, an external force is applied to the lever portion 38 from the concave mirror drive unit 71, which will be described later. As a result, the concave mirror holder 35 rotates together with the concave mirror 31 about the rotation axis Ax.

図９に示すように、一対の軸受け部材５８ａ，５８ｂは、それぞれ、回転軸部３５ａ，３５ｂに圧入される円筒状をなし、軸受け保持部６２ａ，６２ｂにより保持された状態で、回転軸部３５ａ，３５ｂ、ひいては凹面鏡ホルダ３５を回転可能に支持する。軸受け部材５８ａ，５８ｂは、その一端に軸受け部材５８ａ，５８ｂの径方向外側に延びる鍔部５８ｔを有する。
軸受け部材５８ａ，５８ｂは、例えば、板材が円筒状に巻かれた滑り軸受けである。この板材は、厚さ０．２５ｍｍの電気亜鉛メッキ鋼板（ＳＥＣＣ）と、電気亜鉛メッキ鋼板の裏金上に配置される強化材料としての銅製のワイヤーメッシュと、このワイヤーメッシュを覆うポリテトラフルオロエチレン（ＰＴＦＥ）からなるオーバーレイ層と、を備える。この板材は、例えば、厚さ０．７５ｍｍである。
なお、軸受け部材５８ａ，５８ｂは、滑り軸受けに限らず、ボールベアリングであってもよい。As shown in FIG. 9, the pair of bearing members 58a and 58b each have a cylindrical shape to be press-fitted into the rotating shaft portions 35a and 35b, and are held by the bearing holding portions 62a and 62b, respectively, and the rotating shaft portion 35a. , 35b, and thus the concave mirror holder 35, is rotatably supported. The bearing members 58a and 58b have a flange portion 58t extending outward in the radial direction of the bearing members 58a and 58b at one end thereof.
The bearing members 58a and 58b are, for example, sliding bearings in which a plate material is wound in a cylindrical shape. This plate material includes an electrogalvanized steel sheet (SECC) having a thickness of 0.25 mm, a copper wire mesh as a reinforcing material placed on the back metal of the electrogalvanized steel sheet, and polytetrafluoroethylene (polytetrafluoroethylene) covering the wire mesh. It includes an overlay layer made of PTFE). This plate material has, for example, a thickness of 0.75 mm.
The bearing members 58a and 58b are not limited to sliding bearings, and may be ball bearings.

図１３に示すように、軸受け部材５８ａには、仮止め孔５８ｃ、回転許容孔５８ｄ、スリット５８ｆ及びゲート部５８ｅが形成される。
仮止め孔５８ｃは、軸受け部材５８ａの厚さ方向に貫通し、軸受け部材５８ａの周方向に長い長方形をなす。仮止め孔５８ｃは、回転軸Ａｘに沿って回転許容孔５８ｄの隣りに位置し、回転許容孔５８ｄよりもホルダ本体部３４に近い位置に形成される。
図１２に示すように、軸受け部材５８ａが回転軸部３５ａに装着される過程において、仮止め孔５８ｃ内には、回転軸部３５ａの突起部３４ｃが位置する。これにより、軸受け部材５８ａは回転軸部３５ａに仮止めされる。
回転許容孔５８ｄは、軸受け部材５８ａの厚さ方向に貫通し、仮止め孔５８ｃよりも軸受け部材５８ａの周方向に長い長方形をなす。回転許容孔５８ｄは、周方向において凹面鏡ホルダ３５の回転範囲に応じた長さに設定されている。図１３に示すように、軸受け部材５８ａが回転軸部３５ａに装着されたとき、回転許容孔５８ｄ内には、回転軸部３５ａの突起部３４ｃが位置する。凹面鏡ホルダ３５が回転すると、突起部３４ｃは回転許容孔５８ｄ内を移動する。このように、軸受け部材５８ａは、回転軸部３５ａを回転可能に支持する。As shown in FIG. 13, the bearing member 58a is formed with a temporary fixing hole 58c, a rotation allowable hole 58d, a slit 58f, and a gate portion 58e.
The temporary fixing hole 58c penetrates in the thickness direction of the bearing member 58a and forms a long rectangle in the circumferential direction of the bearing member 58a. The temporary fixing hole 58c is located next to the rotation allowable hole 58d along the rotation axis Ax, and is formed at a position closer to the holder main body 34 than the rotation allowable hole 58d.
As shown in FIG. 12, in the process of mounting the bearing member 58a on the rotating shaft portion 35a, the protrusion 34c of the rotating shaft portion 35a is located in the temporary fixing hole 58c. As a result, the bearing member 58a is temporarily fixed to the rotating shaft portion 35a.
The rotation allowance hole 58d penetrates in the thickness direction of the bearing member 58a and forms a rectangle longer in the circumferential direction of the bearing member 58a than the temporary fixing hole 58c. The rotation allowance hole 58d is set to a length corresponding to the rotation range of the concave mirror holder 35 in the circumferential direction. As shown in FIG. 13, when the bearing member 58a is mounted on the rotating shaft portion 35a, the protrusion 34c of the rotating shaft portion 35a is located in the rotation allowable hole 58d. When the concave mirror holder 35 rotates, the protrusion 34c moves in the rotation allowance hole 58d. In this way, the bearing member 58a rotatably supports the rotating shaft portion 35a.

ゲート部５８ｅは、仮止め孔５８ｃと回転許容孔５８ｄを仕切るように、仮止め孔５８ｃと回転許容孔５８ｄの間に形成され、軸受け部材５８ａの周方向に延びる一対の棒状部を備える。この一対の棒状部の間の隙間は、回転軸部３５ａの突起部３４ｃが通過可能に形成されている。
スリット５８ｆは、仮止め孔５８ｃから軸受け部材５８ａにおけるホルダ本体部３４に近い端面まで延びる。スリット５８ｆは、回転軸部３５ａの突起部３４ｃが通過可能に形成されている。
軸受け部材５８ｂも軸受け部材５８ａと同様に構成される。The gate portion 58e is formed between the temporary fixing hole 58c and the rotation allowable hole 58d so as to partition the temporary fixing hole 58c and the rotation allowable hole 58d, and includes a pair of rod-shaped portions extending in the circumferential direction of the bearing member 58a. The gap between the pair of rod-shaped portions is formed so that the protrusion 34c of the rotating shaft portion 35a can pass through.
The slit 58f extends from the temporary fixing hole 58c to the end surface of the bearing member 58a near the holder main body 34. The slit 58f is formed so that the protrusion 34c of the rotation shaft portion 35a can pass through.
The bearing member 58b is also configured in the same manner as the bearing member 58a.

図３及び図５に示すように、軸受けカバー９０は、軸受け保持部６２ａ，６２ｂを外部から隠すように筐体６０の外面に取り付けられる。軸受けカバー９０は、一対のカバー部９１ａ，９１ｂと、カバー部９１ａ，９１ｂの間を連結する連結部９２と、を備える。
一対のカバー部９１ａ，９１ｂは、それぞれ収容凹部６３ａ，６３ｂの開口縁に対応する長方形の板状をなす。カバー部９１ａは収容凹部６３ａを塞ぎ、カバー部９１ｂは収容凹部６３ｂを塞ぐ。カバー部９１ａ，９１ｂは、収容凹部６３ａ，６３ｂの底面に設けられる円柱部９９（図５参照）にねじ９８（図３参照）が螺合されることにより固定される。As shown in FIGS. 3 and 5, the bearing cover 90 is attached to the outer surface of the housing 60 so as to hide the bearing holding portions 62a and 62b from the outside. The bearing cover 90 includes a pair of cover portions 91a and 91b and a connecting portion 92 that connects between the cover portions 91a and 91b.
The pair of cover portions 91a and 91b form a rectangular plate shape corresponding to the opening edges of the accommodating recesses 63a and 63b, respectively. The cover portion 91a closes the accommodating recess 63a, and the cover portion 91b closes the accommodating recess 63b. The cover portions 91a and 91b are fixed by screwing a screw 98 (see FIG. 3) into a cylindrical portion 99 (see FIG. 5) provided on the bottom surface of the accommodating recesses 63a and 63b.

連結部９２は、カバー部９１ａ，９１ｂの間にＸ方向に延びる長方形板状をなす。連結部９２は、筐体６０の外面における一対の収容凹部６３ａ，６３ｂの間にねじ９８が螺合されることにより筐体６０に固定される。
また、連結部９２は、カバー部９１ａ，９１ｂと連結する部位に一対の弾性部９３ａ，９３ｂを備える。一対の弾性部９３ａ，９３ｂは、それぞれ、Ｙ方向に沿って並ぶ２つのＳ字状をなす。弾性部９３ａ，９３ｂのＳ字の一端がカバー部９１ａ，９１ｂに連結され、Ｓ字の他端が連結部９２の本体部に連結されている。弾性部９３ａ，９３ｂは、カバー部９１ａ，９１ｂの互いの位置関係の変化を許容するように弾性変形する。弾性部９３ａ，９３ｂにより、軸受けカバー９０又は筐体６０の形状誤差に関わらず、軸受けカバー９０を筐体６０に装着することが容易となる。The connecting portion 92 has a rectangular plate shape extending in the X direction between the cover portions 91a and 91b. The connecting portion 92 is fixed to the housing 60 by screwing screws 98 between the pair of accommodating recesses 63a and 63b on the outer surface of the housing 60.
Further, the connecting portion 92 includes a pair of elastic portions 93a and 93b at a portion connected to the cover portions 91a and 91b. The pair of elastic portions 93a and 93b each form two S-shapes arranged along the Y direction. One end of the S-shape of the elastic portions 93a and 93b is connected to the cover portions 91a and 91b, and the other end of the S-shape is connected to the main body portion of the connecting portion 92. The elastic portions 93a and 93b are elastically deformed so as to allow a change in the positional relationship between the cover portions 91a and 91b. The elastic portions 93a and 93b make it easy to attach the bearing cover 90 to the housing 60 regardless of the shape error of the bearing cover 90 or the housing 60.

図１０に示すように、凹面鏡駆動ユニット７１は、ミラーユニット３０を回転軸Ａｘを中心に回転させる。凹面鏡駆動ユニット７１は、モータ７２と、変換機構７３と、を備える。
モータ７２は、筐体６０内に固定されるとともに、制御部７０の制御のもと駆動する。
変換機構７３は、モータ７２の回転運動を直線運動に変換する機構である。詳しくは、変換機構７３は、外周にねじが切られたねじ軸７３ａと、ねじ軸７３ａにより貫通される把持部７３ｂと、を備える。
把持部７３ｂは、レバー部３８が接触する接触凸部７３ｅと、レバー部３８を接触凸部７３ｅに向けて押すクリップ部７３ｄと、を備える。クリップ部７３ｄは、金属製の板材がＶ字状に折り曲げられてなる。クリップ部７３ｄの先端は、Ｚ方向において、クリップ部７３ｄに対向するように位置する。接触凸部７３ｅは、レバー部３８に向けて突出する半球状をなし、クリップ部７３ｄとともにレバー部３８を挟み込む。As shown in FIG. 10, the concave mirror drive unit 71 rotates the mirror unit 30 about the rotation axis Ax. The concave mirror drive unit 71 includes a motor 72 and a conversion mechanism 73.
The motor 72 is fixed in the housing 60 and is driven under the control of the control unit 70.
The conversion mechanism 73 is a mechanism that converts the rotational motion of the motor 72 into a linear motion. Specifically, the conversion mechanism 73 includes a screw shaft 73a threaded on the outer circumference and a grip portion 73b penetrated by the screw shaft 73a.
The grip portion 73b includes a contact convex portion 73e that the lever portion 38 contacts, and a clip portion 73d that pushes the lever portion 38 toward the contact convex portion 73e. The clip portion 73d is formed by bending a metal plate material into a V shape. The tip of the clip portion 73d is positioned so as to face the clip portion 73d in the Z direction. The contact convex portion 73e forms a hemispherical shape that protrudes toward the lever portion 38, and sandwiches the lever portion 38 together with the clip portion 73d.

把持部７３ｂは、モータ７２の駆動に伴いねじ軸７３ａが軸回転することで、ねじ軸７３ａに沿って移動する。これにより、モータ７２及び変換機構７３は、レバー部３８を介して凹面鏡ホルダ３５を回転軸Ａｘを中心に回転させる。 The grip portion 73b moves along the screw shaft 73a by rotating the screw shaft 73a as the motor 72 is driven. As a result, the motor 72 and the conversion mechanism 73 rotate the concave mirror holder 35 about the rotation axis Ax via the lever portion 38.

図２に示すように、制御部７０は、ＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only Memory）及びＲＡＭ（Random Access Memory）等からなり、表示部１０及びモータ７２を制御する。制御部７０は、モー７２を駆動させることにより、ミラーユニット３０を回転させる。 As shown in FIG. 2, the control unit 70 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and controls the display unit 10 and the motor 72. The control unit 70 rotates the mirror unit 30 by driving the mo 72.

次に、ミラーユニット３０を筐体６０に組み付ける方法について説明する。この組み付け作業は、例えば、作業者により行われる。
まず、図４に示すように、ミラーユニット３０の回転軸部３５ａ，３５ｂは軸受け保持部６２ａ，６２ｂに挿入される。このとき、回転軸部３５ａ，３５ｂには、軸受け部材５８ａ，５８ｂが装着されていない。よって、回転軸部３５ａ，３５ｂは、軸受け保持部６２ａ，６２ｂ内に簡単に挿入できる。
そして、図７に示すように、軸受け部材５８ａは、回転軸部３５ａに挿通されるように、軸受け保持部６２ａ内に圧入される。上述のように、軸受け保持部６２ａは外部に露出している。このため、軸受け部材５８ａは、軸受け保持部６２ｂの露出端部６２ｄから軸受け保持部６２ｂの保持端部６２ｃ内に圧入可能である。軸受け部材５８ａと同様に、軸受け部材５８ｂは回転軸部３５ｂに挿通されるように、軸受け保持部６２ｂ内に圧入される。これにより、軸受け部材５８ａ，５８ｂは、軸受け保持部６２ａ，６２ｂ内に保持された状態で、凹面鏡ホルダ３５の回転軸部３５ａ，３５ｂを回転可能に支持する。Next, a method of assembling the mirror unit 30 to the housing 60 will be described. This assembly work is performed by, for example, an operator.
First, as shown in FIG. 4, the rotating shaft portions 35a and 35b of the mirror unit 30 are inserted into the bearing holding portions 62a and 62b. At this time, the bearing members 58a and 58b are not attached to the rotating shaft portions 35a and 35b. Therefore, the rotating shaft portions 35a and 35b can be easily inserted into the bearing holding portions 62a and 62b.
Then, as shown in FIG. 7, the bearing member 58a is press-fitted into the bearing holding portion 62a so as to be inserted into the rotating shaft portion 35a. As described above, the bearing holding portion 62a is exposed to the outside. Therefore, the bearing member 58a can be press-fitted from the exposed end portion 62d of the bearing holding portion 62b into the holding end portion 62c of the bearing holding portion 62b. Similar to the bearing member 58a, the bearing member 58b is press-fitted into the bearing holding portion 62b so as to be inserted into the rotating shaft portion 35b. As a result, the bearing members 58a and 58b rotatably support the rotating shaft portions 35a and 35b of the concave mirror holder 35 while being held in the bearing holding portions 62a and 62b.

ここで、より具体的に、軸受け部材５８ａの回転軸部３５ａへの圧入態様について説明する。軸受け部材５８ａの回転軸部３５ａへの圧入作業は、例えば、軸受け部材５８ａを回転軸部３５ａに押し込む治具（図示しない）を利用して作業者により行われる。
まず、図１１に示すように、スリット５８ｆが突起部３４ｃに近づくように、軸受け部材５８ａは回転軸部３５ａの先端に近づけられる。そして、軸受け部材５８ａが回転軸部３５ａに向けて押し込まれると、図１２に示すように、突起部３４ｃがスリット５８ｆを通過して仮止め孔５８ｃ内に到達する。これにより、軸受け部材５８ａが回転軸部３５ａに仮止めされた状態となる。さらに、軸受け部材５８ａが回転軸部３５ａに向けて押し込まれると、図１３に示すように、突起部３４ｃがゲート部５８ｅの隙間を通過して回転許容孔５８ｄ内に到達する。このとき、突起部３４ｃは回転許容孔５８ｄ内で軸受け部材５８ａの周方向に沿って移動可能である。よって、軸受け部材５８ａは、回転軸部３５ａから脱落することが抑制された状態で、回転軸部３５ａを回転可能に支持できる。
なお、軸受け部材５８ｂの回転軸部３５ｂへの圧入態様もこれと同様である。Here, more specifically, a mode of press-fitting the bearing member 58a into the rotating shaft portion 35a will be described. The press-fitting work of the bearing member 58a into the rotating shaft portion 35a is performed by an operator using, for example, a jig (not shown) for pushing the bearing member 58a into the rotating shaft portion 35a.
First, as shown in FIG. 11, the bearing member 58a is brought closer to the tip of the rotating shaft portion 35a so that the slit 58f approaches the protrusion 34c. Then, when the bearing member 58a is pushed toward the rotating shaft portion 35a, the protruding portion 34c passes through the slit 58f and reaches the inside of the temporary fixing hole 58c, as shown in FIG. As a result, the bearing member 58a is temporarily fixed to the rotating shaft portion 35a. Further, when the bearing member 58a is pushed toward the rotating shaft portion 35a, as shown in FIG. 13, the protruding portion 34c passes through the gap of the gate portion 58e and reaches the inside of the rotation allowable hole 58d. At this time, the protrusion 34c can move along the circumferential direction of the bearing member 58a within the rotation allowable hole 58d. Therefore, the bearing member 58a can rotatably support the rotating shaft portion 35a in a state where the bearing member 58a is prevented from falling off from the rotating shaft portion 35a.
The mode of press-fitting the bearing member 58b into the rotating shaft portion 35b is the same as this.

（効果）
以上、説明した第１の実施形態によれば、以下の効果を奏する。(effect)
According to the first embodiment described above, the following effects are obtained.

（１）ヘッドアップディスプレイ装置１００は、表示光Ｌを出射する表示部１０と、表示部１０からの表示光Ｌを被投射部材の一例であるフロントガラス２０１に反射させるミラーユニット３０と、ミラーユニット３０を収容する筐体６０と、ミラーユニット３０を回転可能に支持する軸受け部材５８ａ，５８ｂと、ミラーユニット３０を回転軸Ａｘを中心に回転させる反射鏡駆動ユニットの一例である凹面鏡駆動ユニット７１と、を備える。ミラーユニット３０は、表示光Ｌを反射する鏡面３１ａを含む凹面鏡３１と、凹面鏡３１を保持するホルダ本体部３４、及び回転軸Ａｘに沿って延び、軸受け部材５８ａ，５８ｂにより回転可能に支持される回転軸部３５ａ，３５ｂを有する反射鏡ホルダの一例である凹面鏡ホルダ３５と、を備える。筐体６０は、軸受け部材５８ａ，５８ｂを保持するように筐体６０の内面に凹状に形成される軸受け保持部６２ａ，６２ｂを備える。軸受け保持部６２ａ，６２ｂは、回転軸Ａｘに沿うＸ方向におけるホルダ本体部３４から遠い端部に位置し、軸受け部材５８ａ，５８ｂを圧入可能に筐体６０の外部に開口した状態で露出する露出端部６２ｄを備える。
この構成によれば、筐体６０の外側から軸受け部材５８ａ，５８ｂは軸受け保持部６２ａ，６２ｂに圧入可能である。よって、軸受け部材５８ａ，５８ｂの筐体６０への組み付けが容易となる。(1) The head-up display device 100 includes a display unit 10 that emits display light L, a mirror unit 30 that reflects the display light L from the display unit 10 onto a front glass 201 that is an example of a projected member, and a mirror unit. A housing 60 for accommodating 30, bearing members 58a and 58b for rotatably supporting the mirror unit 30, and a concave mirror drive unit 71 which is an example of a reflector drive unit for rotating the mirror unit 30 around a rotation axis Ax. , Equipped with. The mirror unit 30 extends along a concave mirror 31 including a mirror surface 31a that reflects the display light L, a holder main body 34 that holds the concave mirror 31, and a rotation axis Ax, and is rotatably supported by bearing members 58a and 58b. A concave mirror holder 35, which is an example of a reflector holder having rotating shaft portions 35a and 35b, is provided. The housing 60 includes bearing holding portions 62a and 62b formed in a concave shape on the inner surface of the housing 60 so as to hold the bearing members 58a and 58b. The bearing holding portions 62a and 62b are located at the ends far from the holder main body portion 34 in the X direction along the rotating shaft Ax, and the bearing members 58a and 58b are exposed in a state of being open to the outside of the housing 60 so as to be press-fitted. It has an end 62d.
According to this configuration, the bearing members 58a and 58b can be press-fitted into the bearing holding portions 62a and 62b from the outside of the housing 60. Therefore, the bearing members 58a and 58b can be easily assembled to the housing 60.

（２）軸受け保持部６２ａ，６２ｂは、筐体６０の内部空間に向けて開口するＵ字板状に形成される。
この構成によれば、回転軸部３５ａ，３５ｂは、筐体６０の内部空間から軸受け保持部６２ａ，６２ｂ内に挿入され、その後、軸受け部材５８ａ，５８ｂは、回転軸部３５ａ，３５ｂにより挿通されるように、軸受け保持部６２ａ，６２ｂに圧入される。よって、ミラーユニット３０の筐体６０への組み付けが容易となる。(2) The bearing holding portions 62a and 62b are formed in a U-shaped plate shape that opens toward the internal space of the housing 60.
According to this configuration, the rotating shaft portions 35a and 35b are inserted into the bearing holding portions 62a and 62b from the internal space of the housing 60, and then the bearing members 58a and 58b are inserted by the rotating shaft portions 35a and 35b. As a result, it is press-fitted into the bearing holding portions 62a and 62b. Therefore, the mirror unit 30 can be easily assembled to the housing 60.

（３）筐体６０の外面には、軸受け保持部６２ａ，６２ｂを収容する収容凹部６３ａ，６３ｂが形成される。
この構成によれば、収容凹部６３ａ，６３ｂにより軸受け部材５８ａ，５８ｂを軸受け保持部６２ａ，６２ｂに圧入するための空間が確保される。よって、軸受け部材５８ａ，５８ｂを圧入する作業が容易となる。(3) Accommodating recesses 63a, 63b for accommodating bearing holding portions 62a, 62b are formed on the outer surface of the housing 60.
According to this configuration, the accommodating recesses 63a and 63b secure a space for press-fitting the bearing members 58a and 58b into the bearing holding portions 62a and 62b. Therefore, the work of press-fitting the bearing members 58a and 58b becomes easy.

（４）筐体６０の外面には、収容凹部６３ａ，６３ｂを塞ぐ軸受けカバー９０が取り付けられる。
この構成によれば、軸受けカバー９０により軸受け部材５８ａ，５８ｂが隠される。よって、例えば、ヘッドアップディスプレイ装置１００の車両２００への組み付け時に異物が軸受け部材５８ａ，５８ｂに接触することが抑制される。また、塵埃又は水分等が筐体６０の内部に進入することが抑制される。(4) A bearing cover 90 that closes the accommodating recesses 63a and 63b is attached to the outer surface of the housing 60.
According to this configuration, the bearing members 58a and 58b are hidden by the bearing cover 90. Therefore, for example, when the head-up display device 100 is assembled to the vehicle 200, foreign matter is suppressed from coming into contact with the bearing members 58a and 58b. In addition, dust or moisture is prevented from entering the inside of the housing 60.

（第２の実施形態）
本発明に係るヘッドアップディスプレイ装置の第２の実施形態について、図面を参照して説明する。以下、第１の実施形態との相違点を中心に説明する。(Second Embodiment)
A second embodiment of the head-up display device according to the present invention will be described with reference to the drawings. Hereinafter, the differences from the first embodiment will be mainly described.

図１６に示すように、軸受け保持部６２ｂは、その開口側の開口端部６２ｆに凸部６２ｂ１を有する。凸部６２ｂ１は、開口端部６２ｆの下側に位置し、上方向に向けて突出する。凸部６２ｂ１は、軸受け保持部６２ｂの入口幅Ｗを規定するように形成される。 As shown in FIG. 16, the bearing holding portion 62b has a convex portion 62b1 at the opening end portion 62f on the opening side thereof. The convex portion 62b1 is located below the open end portion 62f and projects upward. The convex portion 62b1 is formed so as to define the inlet width W of the bearing holding portion 62b.

回転軸部３５ｂは、回転軸部３５ｂの外周面の一部に平面３５ｂ１を有する。平面３５ｂ１が形成されることにより、回転軸部３５ｂは最小径φ１と最大径φ２を有する。最小径φ１は、平面３５ｂ１を通過する方向に延びる回転軸部３５ｂの径のうち最小となる径である。最大径φ２は、平面３５ｂ１を通過しない方向に延びる回転軸部３５ｂの径であり、平面３５ｂ１が形成されない場合の回転軸部３５ｂの径に一致する。最大径φ２は入口幅Ｗよりも大きく、最小径φ１は入口幅Ｗよりも小さく設定される。よって、回転軸部３５ｂは最小径φ１が入口幅Ｗと同一方向となる向きにて軸受け保持部６２ｂ内に挿入可能となる。
なお、軸受け保持部６２ｂ及び回転軸部３５ｂのみならず、軸受け保持部６２ａ及び回転軸部３５ａも、軸受け保持部６２ｂ及び回転軸部３５ｂと同様に、凸部６２ａ１及び平面３５ａ１を有する。The rotating shaft portion 35b has a flat surface 35b1 on a part of the outer peripheral surface of the rotating shaft portion 35b. By forming the flat surface 35b1, the rotating shaft portion 35b has a minimum diameter φ1 and a maximum diameter φ2. The minimum diameter φ1 is the smallest diameter of the rotating shaft portion 35b extending in the direction passing through the plane 35b1. The maximum diameter φ2 is the diameter of the rotating shaft portion 35b extending in a direction that does not pass through the flat surface 35b1, and corresponds to the diameter of the rotating shaft portion 35b when the flat surface 35b1 is not formed. The maximum diameter φ2 is set larger than the inlet width W, and the minimum diameter φ1 is set smaller than the inlet width W. Therefore, the rotating shaft portion 35b can be inserted into the bearing holding portion 62b in a direction in which the minimum diameter φ1 is in the same direction as the inlet width W.
Not only the bearing holding portion 62b and the rotating shaft portion 35b, but also the bearing holding portion 62a and the rotating shaft portion 35a have the convex portion 62a1 and the flat surface 35a1 as well as the bearing holding portion 62b and the rotating shaft portion 35b.

図１４に示すように、回転軸部３５ａ，３５ｂは、最小径φ１が入口幅Ｗと同一方向となる向きにて軸受け保持部６２ａ，６２ｂ内に近づける。これにより、図１７に示すように、回転軸部３５ａ，３５ｂは、軸受け保持部６２ａ，６２ｂ内に入る。このとき、図１５及び図１８に示すように、レバー部３８は、クリップ部７３ｄと接触凸部７３ｅの隙間に近づいて、この隙間に入っていく。そして、図１９及び図２０に示すように、回転軸部３５ａ，３５ｂが軸受け保持部６２ａ，６２ｂの保持端部６２ｃに到達すると、レバー部３８がクリップ部７３ｄと接触凸部７３ｅの間で保持される。そして、上記第１の実施形態と同様に、軸受け部材５８ａ，５８ｂが回転軸部３５ａ，３５ｂに装着される。 As shown in FIG. 14, the rotating shaft portions 35a and 35b are brought close to the bearing holding portions 62a and 62b in a direction in which the minimum diameter φ1 is in the same direction as the inlet width W. As a result, as shown in FIG. 17, the rotating shaft portions 35a and 35b enter the bearing holding portions 62a and 62b. At this time, as shown in FIGS. 15 and 18, the lever portion 38 approaches the gap between the clip portion 73d and the contact convex portion 73e and enters the gap. Then, as shown in FIGS. 19 and 20, when the rotating shaft portions 35a and 35b reach the holding end portions 62c of the bearing holding portions 62a and 62b, the lever portion 38 is held between the clip portion 73d and the contact convex portion 73e. Will be done. Then, similarly to the first embodiment, the bearing members 58a and 58b are mounted on the rotating shaft portions 35a and 35b.

（効果）
以上、説明した第２の実施形態によれば、以下の効果を奏する。(effect)
According to the second embodiment described above, the following effects are obtained.

（１）軸受け保持部６２ａ，６２ｂは、軸受け保持部６２ａ，６２ｂの開口側の開口端部６２ｆに位置し、軸受け保持部６２ａ，６２ｂの入口幅Ｗを規定する凸部６２ｂ１を備える。回転軸部３５ａ，３５ｂは、軸受け保持部６２ａ，６２ｂの入口幅Ｗよりも大きい第１の経の一例である最大径φ２、及び最大径φ２と異なる方向に延び、軸受け保持部６２ａ，６２ｂの入口幅Ｗよりも小さい第２の経の一例である最小径φ１を有するように形成される。凹面鏡ホルダ３５はレバー部３８を備える。凹面鏡駆動ユニット７１はレバー部３８を把持する把持部７３ｂを備える。レバー部３８は、最小径φ１が入口幅Ｗに沿う向きにて回転軸部３５ａ，３５ｂが軸受け保持部６２ａ，６２ｂ内に挿入されると、把持部７３ｂに把持されるように形成される。
この構成によれば、回転軸部３５ａ，３５ｂを軸受け保持部６２ａ，６２ｂに挿入する際の凹面鏡ホルダ３５の姿勢が規定される。これにより、回転軸部３５ａ，３５ｂの軸受け保持部６２ａ，６２ｂへの挿入が完了したとき、自ずと、凹面鏡ホルダ３５のレバー部３８が把持部７３ｂに把持される。よって、より簡単に、ミラーユニット３０を筐体６０に組み付けることができる。
また、凸部６２ａ１は、軸受け保持部６２ａ，６２ｂに装着された軸受け部材５８ａ，５８ｂが開口端部６２ｆから飛び出すことも抑制できる。(1) The bearing holding portions 62a and 62b are located at the opening end portion 62f on the opening side of the bearing holding portions 62a and 62b, and include a convex portion 62b1 that defines the inlet width W of the bearing holding portions 62a and 62b. The rotating shaft portions 35a and 35b extend in directions different from the maximum diameter φ2 and the maximum diameter φ2, which are examples of the first sutra larger than the inlet width W of the bearing holding portions 62a and 62b, and the bearing holding portions 62a and 62b. It is formed so as to have a minimum diameter φ1 which is an example of a second sutra smaller than the inlet width W. The concave mirror holder 35 includes a lever portion 38. The concave mirror drive unit 71 includes a grip portion 73b that grips the lever portion 38. The lever portion 38 is formed so that when the rotary shaft portions 35a and 35b are inserted into the bearing holding portions 62a and 62b with the minimum diameter φ1 oriented along the inlet width W, the lever portion 38 is gripped by the grip portion 73b.
According to this configuration, the posture of the concave mirror holder 35 when the rotating shaft portions 35a and 35b are inserted into the bearing holding portions 62a and 62b is defined. As a result, when the insertion of the rotating shaft portions 35a and 35b into the bearing holding portions 62a and 62b is completed, the lever portion 38 of the concave mirror holder 35 is naturally gripped by the grip portion 73b. Therefore, the mirror unit 30 can be more easily assembled to the housing 60.
Further, the convex portion 62a1 can prevent the bearing members 58a and 58b mounted on the bearing holding portions 62a and 62b from popping out from the open end portion 62f.

なお、本発明は以上の実施形態及び図面によって限定されるものではない。本発明の要旨を変更しない範囲で、適宜、変更（構成要素の削除も含む）を加えることが可能である。以下に、変形の一例を説明する。 The present invention is not limited to the above embodiments and drawings. Changes (including deletion of components) can be made as appropriate without changing the gist of the present invention. An example of the modification will be described below.

（変形例）
上記各実施形態においては、凹面鏡ホルダ３５の一対の回転軸部３５ａ，３５ｂのそれぞれに軸受け部材５８ａ，５８ｂが装着されていたが、軸受け部材５８ａ，５８ｂの何れか一方が省略されてもよい。例えば、軸受け部材５８ｂが省略された場合、回転軸部３５ｂは軸受け保持部６２ｂに直接的に支持されてもよい。この場合、軸受け保持部６２ｂは外部に露出しないように形成されてもよい。さらに、この場合、軸受けカバー９０のうちカバー部９１ｂが省略されてもよい。(Modification example)
In each of the above embodiments, the bearing members 58a and 58b are attached to the pair of rotating shafts 35a and 35b of the concave mirror holder 35, respectively, but one of the bearing members 58a and 58b may be omitted. For example, when the bearing member 58b is omitted, the rotating shaft portion 35b may be directly supported by the bearing holding portion 62b. In this case, the bearing holding portion 62b may be formed so as not to be exposed to the outside. Further, in this case, the cover portion 91b of the bearing cover 90 may be omitted.

上記各実施形態においては、軸受け部材５８ａ，５８ｂには、仮止め孔５８ｃ、回転許容孔５８ｄ、スリット５８ｆ及びゲート部５８ｅが形成されていたが、これら全てを省略してもよいし、仮止め孔５８ｃ及びゲート部５８ｅのみ省略してもよい。 In each of the above embodiments, the bearing members 58a and 58b are formed with a temporary fixing hole 58c, a rotation allowable hole 58d, a slit 58f and a gate portion 58e, but all of them may be omitted or temporarily fixed. Only the hole 58c and the gate portion 58e may be omitted.

また、上記各実施形態における軸受けカバー９０のうち連結部９２は省略されてもよい。この場合、一対のカバー部９１ａ，９１ｂは別体で構成される。 Further, the connecting portion 92 of the bearing cover 90 in each of the above embodiments may be omitted. In this case, the pair of cover portions 91a and 91b are formed separately.

上記各実施形態におけるヘッドアップディスプレイ装置１００の構成は適宜変更可能である。例えば、折り返しミラー部材２０を省略して、表示部１０からの表示光Ｌを直接にミラーユニット３０に照射してもよい。また、ヘッドアップディスプレイ装置１００は、凹面鏡３１に代えて平面鏡を備えていてもよい。 The configuration of the head-up display device 100 in each of the above embodiments can be changed as appropriate. For example, the folded mirror member 20 may be omitted, and the display light L from the display unit 10 may be directly applied to the mirror unit 30. Further, the head-up display device 100 may include a plane mirror instead of the concave mirror 31.

上記各実施形態においては、弾性部９３ａ，９３ｂは、Ｙ方向に並ぶ２つのＳ字状に形成されていたが、Ｓ字状に限らず、Ｚ字状、Ｎ字状等の他の形状であってもよい。 In each of the above embodiments, the elastic portions 93a and 93b are formed in two S-shapes arranged in the Y direction, but are not limited to the S-shape but have other shapes such as a Z-shape and an N-shape. There may be.

上記各実施形態における収容凹部６３ａ，６３ｂは省略可能である。この場合、軸受け保持部６２ａ，６２ｂは筐体６０の外面から突出していてもよい。この場合、カバー部９１ａ，９１ｂは軸受け保持部６２ａ，６２ｂを囲む箱状に形成されてもよい。 The accommodating recesses 63a and 63b in each of the above embodiments can be omitted. In this case, the bearing holding portions 62a and 62b may protrude from the outer surface of the housing 60. In this case, the cover portions 91a and 91b may be formed in a box shape surrounding the bearing holding portions 62a and 62b.

上記実施形態では、ヘッドアップディスプレイ装置１００は車両２００に搭載されていたが、車両２００以外の飛行機、船等の乗り物に搭載されていてもよい。また、投射部材はフロントガラスに限らず、専用のコンバイナであってもよい。 In the above embodiment, the head-up display device 100 is mounted on the vehicle 200, but it may be mounted on a vehicle such as an airplane or a ship other than the vehicle 200. Further, the projection member is not limited to the windshield, and may be a dedicated combiner.

上記実施形態では、回転軸部３５ｂに平面３５ｂ１が形成されることにより、回転軸部３５ｂは最小径φ１と最大径φ２を有していた。しかし、回転軸部３５ｂを楕円柱状に形成することにより、回転軸部３５ｂは最小径φ１と最大径φ２を有していてもよい。 In the above embodiment, since the flat surface 35b1 is formed on the rotating shaft portion 35b, the rotating shaft portion 35b has a minimum diameter φ1 and a maximum diameter φ2. However, by forming the rotating shaft portion 35b into an elliptical columnar shape, the rotating shaft portion 35b may have a minimum diameter φ1 and a maximum diameter φ2.

上記第２の実施形態においては、軸受け保持部６２ａ，６２ｂは、その全体が筐体６０の外部に露出するように形成されていたが、軸受け保持部６２ａ，６２ｂのうち露出端部６２ｄのみが軸受け部材５８ａ，５８ｂを圧入可能に外部に露出し、露出端部６２ｄ以外の部位が外部から隠されていてもよい。また、軸受け保持部６２ａ，６２ｂの全体が筐体６０の外部に露出しないように形成されてもよい。 In the second embodiment, the bearing holding portions 62a and 62b are formed so that the entire bearing holding portions 62a and 62b are exposed to the outside of the housing 60, but only the exposed end portions 62d of the bearing holding portions 62a and 62b are formed. The bearing members 58a and 58b may be press-fitted and exposed to the outside, and a portion other than the exposed end portion 62d may be hidden from the outside. Further, the bearing holding portions 62a and 62b may be formed so as not to be exposed to the outside of the housing 60.

以上の実施形態のヘッドアップディスプレイ装置１００は、他の観点の課題も解決できる。この課題について説明する。従来、ミラーユニットを筐体の内部に組み付ける際に、ミラーユニットの向きを反射鏡ホルダのレバー部が反射鏡駆動ユニットの把持部により把持されるように調整する必要があった。特に、鏡面によりレバー部と把持部の位置は見えづらく、この状況下で、レバー部を把持部に正しく挿入することは困難であった。
下記の付記１、２は、上記実状を鑑みてなされたものであり、ミラーユニットを正しく筐体に組み付けることが容易となるヘッドアップディスプレイ装置を提供することを目的とする。
この課題は、例えば、下記の付記１、２によって解決できる。The head-up display device 100 of the above embodiment can solve problems from other viewpoints. This issue will be described. Conventionally, when assembling the mirror unit inside the housing, it has been necessary to adjust the orientation of the mirror unit so that the lever portion of the reflector holder is gripped by the grip portion of the reflector drive unit. In particular, the positions of the lever portion and the grip portion are difficult to see due to the mirror surface, and it is difficult to correctly insert the lever portion into the grip portion under this situation.
The following appendices 1 and 2 are made in view of the above-mentioned actual conditions, and an object thereof is to provide a head-up display device that facilitates the correct assembly of the mirror unit into the housing.
This problem can be solved by, for example, the following appendices 1 and 2.

（付記１）
表示光を出射する表示部と、
前記表示部からの前記表示光を被投射部材に向けて反射させるミラーユニットと、
前記ミラーユニットを収容する筐体と、
前記ミラーユニットを回転可能に支持する軸受け部材と、を備え、
前記ミラーユニットは、
前記表示光を反射する鏡面を含む反射鏡と、
前記反射鏡を保持するホルダ本体部、及び前記回転軸に沿って延び、前記軸受け部材により回転可能に支持される回転軸部を有する反射鏡ホルダと、を備え、
前記軸受け保持部は、前記軸受け保持部の開口側の端部に位置し、前記軸受け保持部の入口幅を規定する凸部を備え、
前記回転軸部は、前記軸受け保持部の前記入口幅よりも大きい第１の経、及び前記第１の経と異なる方向に延び、前記軸受け保持部の前記入口幅よりも小さい第２の径を有するように形成される、
ヘッドアップディスプレイ装置。(Appendix 1)
A display unit that emits display light and
A mirror unit that reflects the display light from the display unit toward the projected member, and
A housing for accommodating the mirror unit and
A bearing member that rotatably supports the mirror unit is provided.
The mirror unit is
A reflector including a mirror surface that reflects the display light, and
A holder main body for holding the reflector, and a reflector holder having a rotating shaft extending along the rotating shaft and rotatably supported by the bearing member.
The bearing holding portion is located at the end of the bearing holding portion on the opening side, and includes a convex portion that defines the entrance width of the bearing holding portion.
The rotating shaft portion has a first diameter larger than the inlet width of the bearing holding portion and a second diameter extending in a direction different from the first warp and smaller than the inlet width of the bearing holding portion. Formed to have,
Head-up display device.

（付記２）
前記ヘッドアップディスプレイ装置は、前記ミラーユニットを前記回転軸を中心に回転させる反射鏡駆動ユニットを備え、
前記反射鏡ホルダは、レバー部を備え、
前記反射鏡駆動ユニットは、前記レバー部を把持する把持部を備え、
前記レバー部は、前記第２の径が前記入口幅に沿う向きにて前記回転軸部が前記軸受け保持部内に挿入されると、前記把持部に把持されるように形成される、
付記１に記載のヘッドアップディスプレイ装置。(Appendix 2)
The head-up display device includes a reflector drive unit that rotates the mirror unit about the rotation axis.
The reflector holder includes a lever portion and has a lever portion.
The reflector drive unit includes a grip portion that grips the lever portion.
The lever portion is formed so that when the rotating shaft portion is inserted into the bearing holding portion with the second diameter oriented along the inlet width, the lever portion is gripped by the grip portion.
The head-up display device according to Appendix 1.

１０ 表示部
３０ ミラーユニット
３１ 凹面鏡
３１ａ 鏡面
３４ ホルダ本体部
３５ 凹面鏡ホルダ
３５ａ，３５ｂ 回転軸部
３５ａ１，３５ｂ１ 平面
３８ レバー部
４０ ミラー駆動ユニット
５８ａ，５８ｂ 軸受け部材
６０ 筐体
６２ａ，６２ｂ 軸受け保持部
６２ａ１，６２ｂ１ 凸部
６２ｃ 把持端部
６３ａ，６３ｂ 収容凹部
７１ 凹面鏡駆動ユニット
７２ モータ
７３ｂ 把持部
９０ 軸受けカバー
１００ ヘッドアップディスプレイ装置
２００ 車両
２０１ フロントガラス
φ１ 最小径
φ２ 最大径
Ｌ 表示光
Ｖ 虚像
Ｗ 入口幅
Ａｘ 回転軸10 Display unit 30 Mirror unit 31 Concave mirror 31a Mirror surface 34 Holder body 35 Concave mirror holder 35a, 35b Rotating shaft part 35a1, 35b1 Flat surface 38 Lever part 40 Mirror drive unit 58a, 58b Bearing member 60 Housing 62a, 62b Bearing holding part 62a1, 62b1 Convex 62c Grip end 63a, 63b Containing recess 71 Concave mirror drive unit 72 Motor 73b Grip 90 Bearing cover 100 Head-up display device 200 Vehicle 201 Front glass φ1 Minimum diameter φ2 Maximum diameter L Display light V Void image W Entrance width Ax rotation shaft

Claims (5)

表示光を出射する表示部と、
前記表示部からの前記表示光を被投射部材に向けて反射させるミラーユニットと、
前記ミラーユニットを収容する筐体と、
前記ミラーユニットを回転軸を中心に回転可能に支持する軸受け部材と、を備え、
前記ミラーユニットは、
前記表示光を反射する鏡面を含む反射鏡と、
前記反射鏡を保持するホルダ本体部、及び前記回転軸に沿って延び、前記軸受け部材により回転可能に支持される回転軸部を有する反射鏡ホルダと、を備え、
前記筐体は、前記軸受け部材を保持するように前記筐体の内面に凹状に形成される軸受け保持部を備え、
前記軸受け保持部は、前記回転軸に沿う方向における前記ホルダ本体部から遠い端部に位置し、前記筐体の外部に開口した状態で露出する露出端部を備える、
ヘッドアップディスプレイ装置。A display unit that emits display light and
A mirror unit that reflects the display light from the display unit toward the projected member, and
A housing for accommodating the mirror unit and
A bearing member that rotatably supports the mirror unit about a rotation axis is provided.
The mirror unit is
A reflector including a mirror surface that reflects the display light, and
A holder main body for holding the reflector, and a reflector holder having a rotating shaft extending along the rotating shaft and rotatably supported by the bearing member.
The housing includes a bearing holding portion formed in a concave shape on the inner surface of the housing so as to hold the bearing member.
The bearing holding portion is located at an end portion far from the holder main body portion in a direction along the rotation axis, and includes an exposed end portion exposed in a state of being open to the outside of the housing.
Head-up display device. 前記筐体の外面には、前記軸受け保持部を収容する収容凹部が形成される、
請求項１に記載のヘッドアップディスプレイ装置。An accommodating recess for accommodating the bearing holding portion is formed on the outer surface of the housing.
The head-up display device according to claim 1. 前記収容凹部を塞ぐように前記筐体の外面に装着される軸受けカバーを備える、
請求項２に記載のヘッドアップディスプレイ装置。A bearing cover mounted on the outer surface of the housing so as to close the storage recess is provided.
The head-up display device according to claim 2. 前記軸受け保持部は、前記軸受け保持部における前記筐体の内部空間に向けて開口する端部に位置し、前記軸受け保持部の入口幅を規定する凸部を備え、
前記回転軸部は、前記軸受け保持部の前記入口幅よりも大きい第１の経、及び前記第１の経と異なる方向に延び、前記軸受け保持部の前記入口幅よりも小さい第２の径を有するように形成される、
請求項１から３の何れか１項に記載のヘッドアップディスプレイ装置。The bearing holding portion is located at an end portion of the bearing holding portion that opens toward the internal space of the housing, and includes a convex portion that defines an inlet width of the bearing holding portion.
The rotating shaft portion has a first diameter larger than the inlet width of the bearing holding portion and a second diameter extending in a direction different from the first warp and smaller than the inlet width of the bearing holding portion. Formed to have,
The head-up display device according to any one of claims 1 to 3. 前記ヘッドアップディスプレイ装置は、前記ミラーユニットを前記回転軸を中心に回転させる反射鏡駆動ユニットを備え、
前記反射鏡ホルダは、レバー部を備え、
前記反射鏡駆動ユニットは、前記レバー部を把持する把持部を備え、
前記レバー部は、前記第２の径が前記入口幅に沿う向きにて前記回転軸部が前記軸受け保持部内に挿入されると、前記把持部に把持されるように形成される、
請求項４に記載のヘッドアップディスプレイ装置。The head-up display device includes a reflector drive unit that rotates the mirror unit about the rotation axis.
The reflector holder includes a lever portion and has a lever portion.
The reflector drive unit includes a grip portion that grips the lever portion.
The lever portion is formed so that when the rotating shaft portion is inserted into the bearing holding portion with the second diameter oriented along the inlet width, the lever portion is gripped by the grip portion.
The head-up display device according to claim 4.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008185790A (en) * 2007-01-30 2008-08-14 Nippon Seiki Co Ltd Head-up display device
JP2010208565A (en) * 2009-03-12 2010-09-24 Nippon Seiki Co Ltd Headup display device
WO2018079308A1 (en) * 2016-10-27 2018-05-03 日本精機株式会社 Head-up display device
JP2019066527A (en) * 2017-09-28 2019-04-25 株式会社デンソー Virtual image display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008185790A (en) * 2007-01-30 2008-08-14 Nippon Seiki Co Ltd Head-up display device
JP2010208565A (en) * 2009-03-12 2010-09-24 Nippon Seiki Co Ltd Headup display device
WO2018079308A1 (en) * 2016-10-27 2018-05-03 日本精機株式会社 Head-up display device
JP2019066527A (en) * 2017-09-28 2019-04-25 株式会社デンソー Virtual image display device

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