WO2021230277A1 - Head-up display device - Google Patents

Head-up display device Download PDF

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Publication number
WO2021230277A1
WO2021230277A1 PCT/JP2021/018003 JP2021018003W WO2021230277A1 WO 2021230277 A1 WO2021230277 A1 WO 2021230277A1 JP 2021018003 W JP2021018003 W JP 2021018003W WO 2021230277 A1 WO2021230277 A1 WO 2021230277A1
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Prior art keywords
case
lower case
fixing
display
head
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PCT/JP2021/018003
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French (fr)
Japanese (ja)
Inventor
正彦 水落
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日本精機株式会社
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Publication date
Application filed by 日本精機株式会社 filed Critical 日本精機株式会社
Priority to JP2022522171A priority Critical patent/JPWO2021230277A1/ja
Publication of WO2021230277A1 publication Critical patent/WO2021230277A1/en

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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—Arrangement of adaptations of instruments
    • 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
    • B60K37/00—Dashboards
    • 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

Definitions

  • This disclosure relates to a head-up display device.
  • HUD head-up display
  • Patent Document 1 describes a HUD device in which a material having relatively high rigidity such as metal is applied to a housing.
  • the dashboard is designed to break appropriately and absorb the impact in order to ensure the safety of the occupants and pedestrians of the vehicle when the vehicle receives an excessive impact.
  • the HUD device provided in the dashboard can also absorb the impact when it receives an excessive impact.
  • a material having a relatively high rigidity is applied to the housing of the HUD device, the demand for shock absorption for the above reason increases.
  • the present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a head-up display device capable of satisfactorily absorbing impact.
  • the head-up display device is A housing having a first case and a second case and accommodating a display unit that emits display light representing an image, and a housing.
  • the first case and the second case are connected to each other, and the first case and the connecting portion having a lower rigidity than the second case are provided.
  • the connecting part is The first part fixed to the first case and The second part fixed to the second case and It is located between the first part and the second part, and includes the first part and a vulnerable part that is more vulnerable than the second part. It is installed in the dashboard of the vehicle.
  • the impact can be absorbed well.
  • the schematic block diagram of the head-up display (HUD) apparatus which concerns on one Embodiment of this disclosure. Same as above An enlarged perspective view of the vicinity of the connecting portion between the lower case and the middle case according to the embodiment.
  • the head-up display (HUD: Head-Up Display) device 100 is provided in the dashboard (also referred to as an instrument panel) of the vehicle, and as shown in FIG. 1, an image is displayed on the windshield 1.
  • the display light 2 to be represented is emitted to display a virtual image of the image.
  • the phantom image is displayed in front of the vehicle through the windshield 1.
  • each configuration may be described using the left / right, up / down, and front / rear directions of the vehicle.
  • an X-axis along the left-right direction, a Y-axis along the up-down direction, and a Z-axis along the front-back direction are shown.
  • the HUD device 100 includes a display unit 10, a first mirror 21, a second mirror 22, a housing 30, a control board 40, and a connecting unit 50.
  • the display unit 10 radiates the display light 2 representing the image toward the first mirror 21.
  • the display unit 10 has, for example, an LCD (Liquid Crystal Display) and a backlight that illuminates the LCD from behind.
  • the LCD is, for example, a TFT (Thin Film Transistor) type.
  • the backlight is composed of, for example, an LED (Light Emitting Diode), a light guide member, or the like.
  • the first mirror 21 reflects the display light 2 from the display unit 10 toward the second mirror 22.
  • the first mirror 21 is, for example, a concave mirror.
  • the second mirror 22 reflects the display light 2 from the first mirror 21 toward the windshield 1 located outside the HUD device 100.
  • the second mirror 22 is, for example, a concave mirror.
  • the second mirror 22 is rotationally driven around the rotation shaft 22a by a drive mechanism (not shown).
  • the housing 30 includes a lower case 31, a middle case 32, and an upper case 33.
  • the lower case 31 has a box shape that opens upward, and is formed of, for example, metal.
  • the lower case 31 supports the display portion 10 via a support member 10a provided on the bottom surface portion thereof.
  • the lower case 31 covers the middle case 32 from below, and houses the display unit 10 and the control board 40 inside the middle case 32.
  • the lower case 31 is connected to the middle case 32 by the connecting portion 50.
  • the middle case 32 has a box shape that opens upward, and is formed of, for example, metal.
  • the middle case 32 houses a second mirror 22 and a drive mechanism (not shown) therein. Behind the bottom of the middle case 32, an opening H1 through which the display light 2 from the display unit 10 toward the first mirror 21 passes is formed.
  • the upper case 33 is formed of a light-shielding resin or metal and covers the middle case 32 from above.
  • the upper case 33 has an opening H2 and a shielding wall 33a, and is formed in a frame shape.
  • the opening H2 passes the display light 2 from the second mirror 22 toward the windshield 1.
  • the light-shielding wall 33a suppresses external light such as sunlight from entering the housing 30.
  • the upper case 33 is provided with a cover glass (not shown) that closes the opening H2.
  • the upper case 33 supports, for example, the first mirror 21.
  • the upper case 33 is fixed to the middle case 32 by a known fixing means such as a screw S.
  • the control board 40 is a printed circuit board on which a microcomputer that controls the overall operation of the HUD device 100 is mounted.
  • the control board 40 controls a drive mechanism (not shown) to rotate the second mirror 22 to control the display position of the virtual image in the vertical direction. Further, it communicates with a system such as a control board 40 and an ECU (Electronic Control Unit) that controls each part of the vehicle, and displays an image showing information about the vehicle on the display unit 10.
  • a system such as a control board 40 and an ECU (Electronic Control Unit) that controls each part of the vehicle, and displays an image showing information about the vehicle on the display unit 10.
  • ECU Electronic Control Unit
  • FIG. 1 connects the lower case 31, which is an example of the first case, and the middle case 32, which is an example of the second case, at a plurality of locations including the front portion and the rear portion.
  • FIG. 2 is a perspective view showing the connecting portions located in the front portions of the lower case 31 and the middle case 32.
  • the front portions of the lower case 31 and the middle case 32 are connected by three connecting portions 50. Since the configurations of the respective connecting portions 50 are the same, the configurations related to the arbitrary connecting portions 50 will be described below, and the description of the configurations related to the other connecting portions 50 will be omitted.
  • the rear portions of the lower case 31 and the middle case 32 are connected by one or a plurality of connecting portions 50.
  • the connecting portion 50 is made of a member having lower rigidity than the lower case 31 and the middle case 32 made of metal, for example, resin. As shown in FIG. 3, the connecting portion 50 includes a first portion 51, a second portion 52, and a fragile portion 53. Further, the HUD device 100 includes a first fixing portion 61, a second fixing portion 62, and a pair of sub-fixing portions 63. For example, the first fixing portion 61, the second fixing portion 62, and the sub-fixing portion 63 are each composed of the same screw.
  • the first portion 51 is a portion fixed to the lower case 31, and as shown in FIG. 3, a tubular portion 511 formed along the axis AX and a pair of cup portions 512, 513 adjacent to the tubular portion 511. And have.
  • the lower case 31 is formed with a fixed portion 310 to which the first portion 51 is fixed.
  • the fixed portion 310 has a recess 311 into which the lower end portion of the tubular portion 511 is inserted, and a pair of bosses 312 and 313 corresponding to the pair of cup portions 512 and 513.
  • the tubular portion 511 of the first portion 51 is a cylindrical portion formed along the axis AX parallel to the Y axis.
  • the lower end of the tubular portion 511 is inserted into the recess 311 of the lower case 31.
  • the tubular portion 511 is fixed to the recess 311 from below by a first fixing portion 61 made of a screw.
  • the first fixing portion 61 is located on the axis AX and is screwed into the inside of the tubular portion 511 through the through hole formed in the recess 311.
  • the cup portion 512 of the first portion 51 has a cup shape that opens upward.
  • the upper surface of the cup portion 512 is formed flush with the upper surface of the tubular portion 511. Further, a portion recessed upward is formed in the bottom portion of the cup portion 512.
  • the upper end of the boss 312 of the lower case 31 is inserted into the recessed portion formed in the bottom of the cup portion 512.
  • the boss 312 is formed in a columnar shape.
  • the cup portion 312 is fixed to the boss 312 from above by a sub-fixing portion 63 made of a screw.
  • the sub-fixing portion 63 extends in parallel with the axis AX at a position off the axis AX, passes through the through hole formed in the cup portion 512, and is screwed into the inside of the bottomed hole formed in the boss 312. ..
  • the cup portion 513 of the first portion 51 is located on the opposite side of the cup portion 512 with the tubular portion 511 interposed therebetween.
  • the cup portion 513 is fixed to the boss 313 formed in the lower case 31 from above by the sub-fixing portion 63 made of screws.
  • the relationship between the cup portion 513 and the boss 313 formed in the lower case 31 is the same as the relationship between the cup portion 512 and the boss 312.
  • the second portion 52 is a portion fixed to the middle case 32, and is formed in a cylindrical shape extending along the axis AX as shown in FIG.
  • the middle case 32 is formed with a fixed portion 320 that projects toward the connecting portion 50 and to which the second portion 52 is fixed.
  • the second portion 52 is fixed to the fixed portion 320 of the middle case 32 from above by the second fixing portion 62 made of screws.
  • the second fixing portion 62 is located on the axis AX and is screwed into the inside of the cylindrical second portion 52 through a through hole formed in the fixed portion 320.
  • the vulnerable part 53 is located between the first part 51 and the second part 52, and is a more vulnerable part than the first part 51 and the second part 52.
  • the fragile portion 53 is formed between the lower end portion 52a of the second portion 52 and the upper surface of the tubular portion 511 of the first portion 51, and is located on the axis AX.
  • the fragile portion 53 has a smaller outer diameter centered on the axis AX than the lower end portion 52a of the second portion 52, and is formed by gradually reducing the diameter as it approaches the first portion 51 from the second portion 52.
  • the connecting portion 50 formed as described above when the HUD device 100 is subjected to an excessive impact via the vehicle, the space between the fragile portion 53 and the first portion 51 is broken, and an excessive impact is applied. It is formed with a strength that does not break under normal conditions. The strength may be determined experimentally. Further, in a normal state, the connecting portion 50 can maintain the connected state between the lower case 31 and the middle case 32 while absorbing the impact due to the elasticity of the resin and the flexible shape of the fragile portion 53.
  • the lower case 31 an example of the first case
  • the middle case 32 an example of the second case
  • the rigidity is lower than that of the lower case 31 and the middle case 32.
  • a unit 50 is provided.
  • the connecting portion 50 is located between the first portion 51 fixed to the lower case 31, the second portion 52 fixed to the middle case 32, and the first portion 51 and the second portion 52, and is located between the first portion 51 and the first portion 51.
  • a vulnerable part 53 that is more vulnerable than the second part 52.
  • the lower case 31 supports the display unit 10. Since the lower case 31 supporting the display portion 10 is heavier than the other parts of the housing 30, when the fragile portion 53 of the connecting portion 50 is broken due to an excessive impact, the lower case 31 is moved from the middle case 32 to the lower case 31. Easy to separate and fall. That is, with this configuration, the HUD device 100 that has received an excessive impact is moderately fragile.
  • the HUD device 100 includes a first fixing portion 61 for fixing the first portion 51 to the lower case 31, and a second fixing portion 62 for fixing the second portion 52 to the middle case 32.
  • the first fixing portion 61, the second fixing portion 62, and the fragile portion 53 are located on the same axis AX.
  • the first fixed portion 61 and the second fixed portion 62 move so as to deviate from the axis AX when an excessive impact is received, while ensuring resistance to vibration in the vertical direction in particular. , Acts to break the fragile portion 53. That is, it is possible to achieve both the impact resistance during normal operation and the fragility of the HUD device 100 when it receives an excessive impact.
  • the HUD device 100 includes a sub-fixing portion 63 for fixing the first portion 51 to the lower case 31 at a position off the axis AX. With this configuration, it is possible to prevent the connecting portion 50 from rotating about the axis AX with respect to the lower case 31.
  • the lower case 31 and the middle case 32 are made of metal, and the connecting portion 50 is made of resin.
  • the connecting portion 50 is made of resin.
  • the lower case 31 or the middle case 32 may be made of resin as long as the rigidity is higher than that of the connecting portion 50.
  • the resin connecting portion 50 is suitable.
  • the shape of the connecting portion 50 is not limited to the above example, and can be changed as appropriate.
  • the connecting portion 50M according to the modified example may be adopted.
  • this modification will be described with reference to the same reference numerals for each part having the same function as that of the above embodiment.
  • the connecting portion 50M according to the modified example includes a first portion 51, a second portion 52, and a fragile portion 53.
  • the first portion 51 is fixed to the fixed portion 310 of the lower case 31 from above by the first fixing portion 61 made of screws.
  • the outer shape of the first portion 51 is formed in a columnar shape, for example.
  • the second portion 52 is fixed to the fixed portion 320 of the middle case 32 from above by the second fixing portion 62 made of screws.
  • the outer shape of the second portion 52 is formed in a columnar shape, for example.
  • the fragile portion 53 is formed in a plate shape connecting the first portion 51 and the second portion 52.
  • the fragile portion 53 is formed to be thinner than the first portion 51 and the second portion 52, so that the fragile portion 53 is configured to be more vulnerable than the first portion 51 and the second portion 52.
  • the fragile portion 53 in the connecting portion 50 is not limited to the above-mentioned example, and its shape is arbitrary as long as it is fragile than the first portion 51 and the second portion 52.
  • the fragile portion 53 may be a groove portion formed between the first portion 51 and the second portion 52 of the connecting portion 50.
  • the number of connecting portions 50 for connecting the lower case 31 and the middle case 32 is arbitrary depending on the design. Further, one of the pair of sub-fixing portions 63 may be omitted. Similarly, one of the pair of cup portions 512 and 513 and one of the pair of bosses 312 and 313 may be omitted. Further, it is also possible to adopt a configuration in which the middle case 32 and the upper case 33 are connected by the connecting portion 50. In this case, the middle case 32 is an example of the first case, and the upper case 33 is an example of the second case.
  • the connecting portions 50 and 50M may be formed of a known material such as plastic or elastomer, and the material is arbitrary.
  • first fixing portion 61, the second fixing portion 62, and the sub-fixing portion 63 are each composed of the same screw, but different types of screws may be included.
  • first fixing portion 61, the second fixing portion 62, and the sub-fixing portion 63 are not limited to screws, and may be composed of known fixing members using, for example, pins, hooks, and the like.
  • the configuration of the optical system in the HUD device 100 is arbitrary as long as the display light 2 from the display unit 10 can be radiated to the windshield 1, and the number, shape, and arrangement of the mirrors that reflect the display light 2 are appropriately changed. be able to.
  • the configuration of the display unit 10 is not limited and is arbitrary.
  • the display unit 10 may use an OLED (Organic Light-Emitting Diode).
  • the display unit 10 may include a DMD (Digital Micromirror Device) and a transmissive screen that receives the reflected light from the DMD and displays an image.
  • DMD Digital Micromirror Device
  • the translucent member that reflects the HUD device 100 toward the user is not limited to the windshield 1 of the vehicle, and may be a combiner composed of a plate-shaped half mirror, a hologram element, or the like.
  • the type of vehicle on which the HUD device 100 is mounted is not limited, and it can be applied to various vehicles such as motorcycles and motorcycles.
  • HUD Head-up display
  • Display unit 21 1st mirror 22 2nd mirror 30 Housing
  • Lower case example of 1st case
  • Fixed part 311 Recessed part 312, 313 Boss
  • Medium case an example of the second case
  • Fixed part 33
  • Upper case 40 Control board 50 Connecting part 51 1st part 511 Cylinder part 512,513 Cup part 52 2nd part 53 Fragile part 61 1st fixing part 62 2nd fixing part 63

Abstract

The present invention provides a head-up display (HUD) device that can absorb shock favorably. The HUD device according to the present invention comprises a housing that houses a display that radiates display light expressing an image, and a connecting part 50, and is provided inside the dashboard of a vehicle. The housing includes a lower case 31 and a middle case 32. The connecting part 50 connects the lower case 31 and the middle 32, and is less rigid than the lower case 31 and the middle case 32. The connecting part 50 is provided with a first portion 51 secured to the lower case 31, a second portion 52 secured to the middle case 32, and a fragile part 53 that is more fragile than the first portion 51 and the second portion 52. The fragile part 53 is positioned between the first portion 51 and the second portion 52. The HUD device also comprises a first securing part 61 that secures the first portion 51 to the lower case 31 and a second securing part 62 that secures the second portion 52 to the middle case 32.

Description

ヘッドアップディスプレイ装置Head-up display device
　本開示は、ヘッドアップディスプレイ装置に関する。 This disclosure relates to a head-up display device.
　車両のダッシュボード内に設けられ、ウインドシールドに画像を表す表示光を放射し、当該画像の虚像を表示するヘッドアップディスプレイ（ＨＵＤ：Head-Up Display）装置が知られている。例えば、特許文献１には、筐体に、金属等の剛性が比較的高い材料を適用したＨＵＤ装置が記載されている。 A head-up display (HUD) device that is installed in the dashboard of a vehicle and emits display light representing an image to a windshield to display a virtual image of the image is known. For example, Patent Document 1 describes a HUD device in which a material having relatively high rigidity such as metal is applied to a housing.
特開２０１６－１０３００８号公報Japanese Unexamined Patent Publication No. 2016-103008
　ダッシュボードは、車両が過度な衝撃を受けた場合、車両の乗員や歩行者の安全を確保すべく、適度に壊れて衝撃を吸収するように設計される。同様な理由から、ダッシュボード内に設けられるＨＵＤ装置も、過度な衝撃を受けた場合に衝撃を吸収できることが望ましい。例えば、特許文献１に記載のように、ＨＵＤ装置の筐体に比較的剛性が高い材料を適用した場合には、上記理由による衝撃吸収の要請が高まる。 The dashboard is designed to break appropriately and absorb the impact in order to ensure the safety of the occupants and pedestrians of the vehicle when the vehicle receives an excessive impact. For the same reason, it is desirable that the HUD device provided in the dashboard can also absorb the impact when it receives an excessive impact. For example, as described in Patent Document 1, when a material having a relatively high rigidity is applied to the housing of the HUD device, the demand for shock absorption for the above reason increases.
　本開示は、上記実情に鑑みてなされたものであり、衝撃を良好に吸収でき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 disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a head-up display device capable of satisfactorily absorbing impact.
　上記目的を達成するため、本開示に係るヘッドアップディスプレイ装置は、
　第１ケース及び第２ケースを有し、画像を表す表示光を放射する表示部を収容する筐体と、
　前記第１ケースと前記第２ケースを連結し、前記第１ケース及び前記第２ケースよりも剛性が低い連結部と、を備え、
　前記連結部は、
　前記第１ケースに固定される第１部分と、
　前記第２ケースに固定される第２部分と、
　前記第１部分と前記第２部分の間に位置し、前記第１部分及び前記第２部分よりも脆弱な脆弱部と、を備え、
　車両のダッシュボード内に設けられる。 In order to achieve the above object, the head-up display device according to the present disclosure is
A housing having a first case and a second case and accommodating a display unit that emits display light representing an image, and a housing.
The first case and the second case are connected to each other, and the first case and the connecting portion having a lower rigidity than the second case are provided.
The connecting part is
The first part fixed to the first case and
The second part fixed to the second case and
It is located between the first part and the second part, and includes the first part and a vulnerable part that is more vulnerable than the second part.
It is installed in the dashboard of the vehicle.
　本開示によれば、衝撃を良好に吸収することができる。 According to the present disclosure, the impact can be absorbed well.
本開示の一実施形態に係るヘッドアップディスプレイ（ＨＵＤ）装置の概略構成図。The schematic block diagram of the head-up display (HUD) apparatus which concerns on one Embodiment of this disclosure. 同上実施形態に係る下ケースと中ケースの連結箇所近傍の拡大斜視図。Same as above An enlarged perspective view of the vicinity of the connecting portion between the lower case and the middle case according to the embodiment. 同上実施形態に係る下ケース、中ケース及び連結部の図２に示すＡ－Ａ線での断面図。The cross-sectional view taken along the line AA shown in FIG. 2 of the lower case, the middle case and the connecting portion which concerns on the said embodiment. 同上実施形態に係る下ケース、中ケース及び連結部等の分解斜視図。The above-mentioned exploded perspective view of the lower case, the middle case, the connecting portion and the like according to the embodiment. 変形例に係る連結部を説明するための概略断面図。Schematic cross-sectional view for explaining the connection part which concerns on the modification.
　本開示の一実施形態について図面を参照して説明する。 An embodiment of the present disclosure will be described with reference to the drawings.
　本実施形態に係るヘッドアップディスプレイ（ＨＵＤ：Head-Up Display）装置１００は、車両のダッシュボード（インストルメントパネルとも呼ばれる。）内に設けられ、図１に示すように、ウインドシールド１に画像を表す表示光２を放射し、当該画像の虚像を表示する。虚像は、ウインドシールド１を介して車両の前方に表示される。 The head-up display (HUD: Head-Up Display) device 100 according to the present embodiment is provided in the dashboard (also referred to as an instrument panel) of the vehicle, and as shown in FIG. 1, an image is displayed on the windshield 1. The display light 2 to be represented is emitted to display a virtual image of the image. The phantom image is displayed in front of the vehicle through the windshield 1.
　以下では、車両の左右、上下、及び前後方向を用いて各構成を説明する場合がある。適宜の図において、左右方向に沿うＸ軸、上下方向に沿うＹ軸、前後方向に沿うＺ軸を示した。 In the following, each configuration may be described using the left / right, up / down, and front / rear directions of the vehicle. In an appropriate figure, an X-axis along the left-right direction, a Y-axis along the up-down direction, and a Z-axis along the front-back direction are shown.
　ＨＵＤ装置１００は、図１に示すように、表示部１０と、第１ミラー２１と、第２ミラー２２と、筐体３０と、制御基板４０と、連結部５０と、を備える。 As shown in FIG. 1, the HUD device 100 includes a display unit 10, a first mirror 21, a second mirror 22, a housing 30, a control board 40, and a connecting unit 50.
　表示部１０は、画像を表示することで、その画像を表す表示光２を第１ミラー２１に向けて放射する。表示部１０は、例えば、ＬＣＤ（Liquid Crystal Display）と、ＬＣＤを背後から照明するバックライトとを有する。ＬＣＤは、例えば、ＴＦＴ（Thin Film Transistor）型のものである。バックライトは、例えば、ＬＥＤ（Light Emitting Diode）、導光部材等から構成されている。 By displaying an image, the display unit 10 radiates the display light 2 representing the image toward the first mirror 21. The display unit 10 has, for example, an LCD (Liquid Crystal Display) and a backlight that illuminates the LCD from behind. The LCD is, for example, a TFT (Thin Film Transistor) type. The backlight is composed of, for example, an LED (Light Emitting Diode), a light guide member, or the like.
　第１ミラー２１は、表示部１０からの表示光２を第２ミラー２２に向けて反射する。第１ミラー２１は、例えば、凹面鏡である。 The first mirror 21 reflects the display light 2 from the display unit 10 toward the second mirror 22. The first mirror 21 is, for example, a concave mirror.
　第２ミラー２２は、第１ミラー２１からの表示光２を、ＨＵＤ装置１００の外部に位置するウインドシールド１に向けて反射する。第２ミラー２２は、例えば、凹面鏡である。第２ミラー２２は、図示しない駆動機構によって、回転軸２２ａを中心に回転駆動される。 The second mirror 22 reflects the display light 2 from the first mirror 21 toward the windshield 1 located outside the HUD device 100. The second mirror 22 is, for example, a concave mirror. The second mirror 22 is rotationally driven around the rotation shaft 22a by a drive mechanism (not shown).
　筐体３０は、下ケース３１と、中ケース３２と、上ケース３３と、を備える。 The housing 30 includes a lower case 31, a middle case 32, and an upper case 33.
　下ケース３１は、上方に開口した箱状をなし、例えば金属から形成されている。下ケース３１は、その底面部に設けられた支持部材１０ａを介して表示部１０を支持する。下ケース３１は、中ケース３２を下方から覆い、その内部に表示部１０及び制御基板４０を収容する。下ケース３１は、連結部５０によって中ケース３２と連結される。 The lower case 31 has a box shape that opens upward, and is formed of, for example, metal. The lower case 31 supports the display portion 10 via a support member 10a provided on the bottom surface portion thereof. The lower case 31 covers the middle case 32 from below, and houses the display unit 10 and the control board 40 inside the middle case 32. The lower case 31 is connected to the middle case 32 by the connecting portion 50.
　中ケース３２は、上方に開口した箱状をなし、例えば金属から形成されている。中ケース３２は、その内部に、第２ミラー２２及び図示しない駆動機構を収容する。中ケース３２の底部後方には、表示部１０から第１ミラー２１に向かう表示光２が通過する開口部Ｈ１が形成されている。 The middle case 32 has a box shape that opens upward, and is formed of, for example, metal. The middle case 32 houses a second mirror 22 and a drive mechanism (not shown) therein. Behind the bottom of the middle case 32, an opening H1 through which the display light 2 from the display unit 10 toward the first mirror 21 passes is formed.
　上ケース３３は、遮光性の樹脂又は金属により形成され、中ケース３２を上方から覆う。上ケース３３は、開口部Ｈ２と、遮蔽壁３３ａとを有し、枠状に形成されている。開口部Ｈ２は、第２ミラー２２からウインドシールド１に向かう表示光２を通過させる。遮光壁３３ａは、太陽光等の外光が筐体３０内に侵入することを抑制する。上ケース３３には、開口部Ｈ２を塞ぐ図示しないカバーガラスが設けられる。上ケース３３は、例えば、第１ミラー２１を支持する。上ケース３３は、ネジＳ等の公知の固定手段により、中ケース３２に固定される。 The upper case 33 is formed of a light-shielding resin or metal and covers the middle case 32 from above. The upper case 33 has an opening H2 and a shielding wall 33a, and is formed in a frame shape. The opening H2 passes the display light 2 from the second mirror 22 toward the windshield 1. The light-shielding wall 33a suppresses external light such as sunlight from entering the housing 30. The upper case 33 is provided with a cover glass (not shown) that closes the opening H2. The upper case 33 supports, for example, the first mirror 21. The upper case 33 is fixed to the middle case 32 by a known fixing means such as a screw S.
　制御基板４０は、ＨＵＤ装置１００の全体動作を制御するマイクロコンピュータを実装したプリント回路板である。制御基板４０は、図示しない駆動機構を制御して、第２ミラー２２を回転させることで、虚像の上下方向における表示位置を制御する。また、制御基板４０、車両の各部を制御するＥＣＵ（Electronic Control Unit）などのシステムと通信を行い、当該車両に関する情報を示す画像を表示部１０に表示させる。 The control board 40 is a printed circuit board on which a microcomputer that controls the overall operation of the HUD device 100 is mounted. The control board 40 controls a drive mechanism (not shown) to rotate the second mirror 22 to control the display position of the virtual image in the vertical direction. Further, it communicates with a system such as a control board 40 and an ECU (Electronic Control Unit) that controls each part of the vehicle, and displays an image showing information about the vehicle on the display unit 10.
　図１に模式的に示す連結部５０は、第１ケースの一例である下ケース３１と、第２ケースの一例である中ケース３２とを、前方部及び後方部を含む複数箇所で連結する。これら複数箇所のうち、図２は、下ケース３１及び中ケース３２の前方部に位置する連結箇所を示す斜視図である。図２、図４に示すように、下ケース３１及び中ケース３２の前方部は、３つの連結部５０により連結される。各連結部５０の構成は同様であるため、以下では、任意の連結部５０に関連する構成について説明し、他の連結部５０に関連する構成の説明を省略する。なお、下ケース３１及び中ケース３２の後方部については、図示しないが、１又は複数の連結部５０によって連結される。 The connecting portion 50 schematically shown in FIG. 1 connects the lower case 31, which is an example of the first case, and the middle case 32, which is an example of the second case, at a plurality of locations including the front portion and the rear portion. Of these plurality of locations, FIG. 2 is a perspective view showing the connecting portions located in the front portions of the lower case 31 and the middle case 32. As shown in FIGS. 2 and 4, the front portions of the lower case 31 and the middle case 32 are connected by three connecting portions 50. Since the configurations of the respective connecting portions 50 are the same, the configurations related to the arbitrary connecting portions 50 will be described below, and the description of the configurations related to the other connecting portions 50 will be omitted. Although not shown, the rear portions of the lower case 31 and the middle case 32 are connected by one or a plurality of connecting portions 50.
　連結部５０は、金属から形成される下ケース３１及び中ケース３２よりも剛性が低い部材、例えば樹脂から形成されている。図３に示すように、連結部５０は、第１部分５１と、第２部分５２と、脆弱部５３と、を備える。また、ＨＵＤ装置１００は、第１固定部６１、第２固定部６２、及び一対の副固定部６３を備える。例えば、第１固定部６１、第２固定部６２及び副固定部６３は、それぞれ、同じネジから構成される。 The connecting portion 50 is made of a member having lower rigidity than the lower case 31 and the middle case 32 made of metal, for example, resin. As shown in FIG. 3, the connecting portion 50 includes a first portion 51, a second portion 52, and a fragile portion 53. Further, the HUD device 100 includes a first fixing portion 61, a second fixing portion 62, and a pair of sub-fixing portions 63. For example, the first fixing portion 61, the second fixing portion 62, and the sub-fixing portion 63 are each composed of the same screw.
　第１部分５１は、下ケース３１に固定される部分であり、図３に示すように、軸線ＡＸに沿って形成された筒部５１１と、筒部５１１に隣接する一対のカップ部５１２，５１３と、を有する。一方、下ケース３１には、第１部分５１が固定される被固定部３１０が形成されている。被固定部３１０は、筒部５１１の下端部が挿入される凹部３１１と、一対のカップ部５１２，５１３に対応する一対のボス３１２，３１３と、を有する。 The first portion 51 is a portion fixed to the lower case 31, and as shown in FIG. 3, a tubular portion 511 formed along the axis AX and a pair of cup portions 512, 513 adjacent to the tubular portion 511. And have. On the other hand, the lower case 31 is formed with a fixed portion 310 to which the first portion 51 is fixed. The fixed portion 310 has a recess 311 into which the lower end portion of the tubular portion 511 is inserted, and a pair of bosses 312 and 313 corresponding to the pair of cup portions 512 and 513.
　第１部分５１の筒部５１１は、Ｙ軸と平行な軸線ＡＸに沿って形成された円筒状の部分である。筒部５１１の下端部は、下ケース３１の凹部３１１に挿入される。筒部５１１は、凹部３１１に、ネジからなる第１固定部６１によって下方から固定される。第１固定部６１は、軸線ＡＸ上に位置し、凹部３１１に形成された貫通孔を通って、筒部５１１の内部に螺着される。 The tubular portion 511 of the first portion 51 is a cylindrical portion formed along the axis AX parallel to the Y axis. The lower end of the tubular portion 511 is inserted into the recess 311 of the lower case 31. The tubular portion 511 is fixed to the recess 311 from below by a first fixing portion 61 made of a screw. The first fixing portion 61 is located on the axis AX and is screwed into the inside of the tubular portion 511 through the through hole formed in the recess 311.
　第１部分５１のカップ部５１２は、上方に開口したカップ状をなす。カップ部５１２の上面は、筒部５１１の上面と面一に形成されている。また、カップ部５１２の底部には、上方に向かって凹む部分が形成されている。カップ部５１２の底部に形成された凹み部分には、下ケース３１のボス３１２の上端部が挿入される。ボス３１２は、円柱状に形成されている。カップ部３１２は、ボス３１２に、ネジからなる副固定部６３によって上方から固定される。副固定部６３は、軸線ＡＸ上から外れた位置で軸線ＡＸと平行に延び、カップ部５１２に形成された貫通孔を通って、ボス３１２に形成された有底孔の内部に螺着される。 The cup portion 512 of the first portion 51 has a cup shape that opens upward. The upper surface of the cup portion 512 is formed flush with the upper surface of the tubular portion 511. Further, a portion recessed upward is formed in the bottom portion of the cup portion 512. The upper end of the boss 312 of the lower case 31 is inserted into the recessed portion formed in the bottom of the cup portion 512. The boss 312 is formed in a columnar shape. The cup portion 312 is fixed to the boss 312 from above by a sub-fixing portion 63 made of a screw. The sub-fixing portion 63 extends in parallel with the axis AX at a position off the axis AX, passes through the through hole formed in the cup portion 512, and is screwed into the inside of the bottomed hole formed in the boss 312. ..
　第１部分５１のカップ部５１３は、筒部５１１を挟んでカップ部５１２の反対側に位置する。カップ部５１３は、下ケース３１に形成されたボス３１３に、ネジからなる副固定部６３によって上方から固定される。カップ部５１３と下ケース３１に形成されたボス３１３との関係は、カップ部５１２とボス３１２との関係と同様である。 The cup portion 513 of the first portion 51 is located on the opposite side of the cup portion 512 with the tubular portion 511 interposed therebetween. The cup portion 513 is fixed to the boss 313 formed in the lower case 31 from above by the sub-fixing portion 63 made of screws. The relationship between the cup portion 513 and the boss 313 formed in the lower case 31 is the same as the relationship between the cup portion 512 and the boss 312.
　第２部分５２は、中ケース３２に固定される部分であり、図３に示すように、軸線ＡＸに沿って延びる筒状に形成されている。一方、中ケース３２には、図２に示すように、連結部５０に向かって突出し、第２部分５２が固定される被固定部３２０が形成されている。図３に示すように、第２部分５２は、中ケース３２の被固定部３２０に、ネジからなる第２固定部６２によって上方から固定される。第２固定部６２は、軸線ＡＸ上に位置し、被固定部３２０に形成された貫通孔を通って、筒状の第２部分５２の内部に螺着される。 The second portion 52 is a portion fixed to the middle case 32, and is formed in a cylindrical shape extending along the axis AX as shown in FIG. On the other hand, as shown in FIG. 2, the middle case 32 is formed with a fixed portion 320 that projects toward the connecting portion 50 and to which the second portion 52 is fixed. As shown in FIG. 3, the second portion 52 is fixed to the fixed portion 320 of the middle case 32 from above by the second fixing portion 62 made of screws. The second fixing portion 62 is located on the axis AX and is screwed into the inside of the cylindrical second portion 52 through a through hole formed in the fixed portion 320.
　脆弱部５３は、第１部分５１と第２部分５２の間に位置し、第１部分５１及び第２部分５２よりも脆弱な部分である。具体的に、脆弱部５３は、第２部分５２の下端部５２ａと、第１部分５１の筒部５１１の上面との間に形成され、軸線ＡＸ上に位置する。脆弱部５３は、第２部分５２の下端部５２ａよりも軸線ＡＸを中心とした外径が小さく、且つ、第２部分５２から第１部分５１に近付くにつれて徐々に縮径して形成される。 The vulnerable part 53 is located between the first part 51 and the second part 52, and is a more vulnerable part than the first part 51 and the second part 52. Specifically, the fragile portion 53 is formed between the lower end portion 52a of the second portion 52 and the upper surface of the tubular portion 511 of the first portion 51, and is located on the axis AX. The fragile portion 53 has a smaller outer diameter centered on the axis AX than the lower end portion 52a of the second portion 52, and is formed by gradually reducing the diameter as it approaches the first portion 51 from the second portion 52.
　以上のように形成される連結部５０は、車両を介してＨＵＤ装置１００が過度な衝撃を受けた場合に脆弱部５３と第１部分５１の間が破断し、且つ、過度な衝撃が与えられていない通常時では破断しない強度で形成されている。当該強度は、実験により定めればよい。また、通常時では、連結部５０は、樹脂が有する弾性と脆弱部５３の撓みやすい形状によって、衝撃を吸収しつつ、下ケース３１と中ケース３２の連結状態を保つことができる。 In the connecting portion 50 formed as described above, when the HUD device 100 is subjected to an excessive impact via the vehicle, the space between the fragile portion 53 and the first portion 51 is broken, and an excessive impact is applied. It is formed with a strength that does not break under normal conditions. The strength may be determined experimentally. Further, in a normal state, the connecting portion 50 can maintain the connected state between the lower case 31 and the middle case 32 while absorbing the impact due to the elasticity of the resin and the flexible shape of the fragile portion 53.
（１）以上に説明したＨＵＤ装置１００は、下ケース３１（第１ケースの一例）と中ケース３２（第２ケースの一例）を連結し、下ケース３１及び中ケース３２よりも剛性が低い連結部５０を備える。連結部５０は、下ケース３１に固定される第１部分５１と、中ケース３２に固定される第２部分５２と、第１部分５１と第２部分５２の間に位置し、第１部分５１及び第２部分５２よりも脆弱な脆弱部５３と、を備える。
　この構成によれば、車両が過度な衝撃を受けた場合、連結部５０の脆弱部５３が破断し、中ケース３２と下ケース３１とが分離することが可能となる。つまり、過度な衝撃を受けてＨＵＤ装置１００が適度に壊れることにより、衝撃を良好に吸収することができる。これにより、車両の乗員などに加わる虞がある衝撃の一部を緩和することができる。 (1) In the HUD device 100 described above, the lower case 31 (an example of the first case) and the middle case 32 (an example of the second case) are connected, and the rigidity is lower than that of the lower case 31 and the middle case 32. A unit 50 is provided. The connecting portion 50 is located between the first portion 51 fixed to the lower case 31, the second portion 52 fixed to the middle case 32, and the first portion 51 and the second portion 52, and is located between the first portion 51 and the first portion 51. And a vulnerable part 53 that is more vulnerable than the second part 52.
According to this configuration, when the vehicle receives an excessive impact, the fragile portion 53 of the connecting portion 50 is broken, and the middle case 32 and the lower case 31 can be separated from each other. That is, the HUD device 100 is appropriately broken by receiving an excessive impact, so that the impact can be absorbed satisfactorily. As a result, it is possible to alleviate a part of the impact that may be applied to the occupants of the vehicle.
（２）また、下ケース３１は、表示部１０を支持する。
　表示部１０を支持した下ケース３１は、筐体３０の他の部分に対して重くなるため、過度な衝撃を受けて連結部５０の脆弱部５３が破断すると、中ケース３２から下ケース３１が分離して落下し易い。つまり、この構成により、過度な衝撃を受けたＨＵＤ装置１００が適度に壊れ易い。 (2) Further, the lower case 31 supports the display unit 10.
Since the lower case 31 supporting the display portion 10 is heavier than the other parts of the housing 30, when the fragile portion 53 of the connecting portion 50 is broken due to an excessive impact, the lower case 31 is moved from the middle case 32 to the lower case 31. Easy to separate and fall. That is, with this configuration, the HUD device 100 that has received an excessive impact is moderately fragile.
（３）また、ＨＵＤ装置１００は、第１部分５１を下ケース３１に固定する第１固定部６１と、第２部分５２を中ケース３２に固定する第２固定部６２と、を備える。そして、第１固定部６１、第２固定部６２及び脆弱部５３は、同一の軸線ＡＸ上に位置する。
　この構成により、通常時には、特に上下方向の振動に対する耐性を確保しつつ、過度な衝撃を受けた場合には、第１固定部６１と第２固定部６２とが互いに軸線ＡＸからずれるように動き、脆弱部５３を破断させるように作用する。つまり、通常時の耐衝撃性と、過度な衝撃を受けた場合のＨＵＤ装置１００の壊れ易さを両立することができる。 (3) Further, the HUD device 100 includes a first fixing portion 61 for fixing the first portion 51 to the lower case 31, and a second fixing portion 62 for fixing the second portion 52 to the middle case 32. The first fixing portion 61, the second fixing portion 62, and the fragile portion 53 are located on the same axis AX.
With this configuration, in normal times, the first fixed portion 61 and the second fixed portion 62 move so as to deviate from the axis AX when an excessive impact is received, while ensuring resistance to vibration in the vertical direction in particular. , Acts to break the fragile portion 53. That is, it is possible to achieve both the impact resistance during normal operation and the fragility of the HUD device 100 when it receives an excessive impact.
（４）また、ＨＵＤ装置１００は、軸線ＡＸ上から外れた位置で第１部分５１を下ケース３１に固定する副固定部６３を備える。
　この構成により、下ケース３１に対して連結部５０が軸線ＡＸを中心に回転することを抑制することができる。 (4) Further, the HUD device 100 includes a sub-fixing portion 63 for fixing the first portion 51 to the lower case 31 at a position off the axis AX.
With this configuration, it is possible to prevent the connecting portion 50 from rotating about the axis AX with respect to the lower case 31.
（５）また、下ケース３１及び中ケース３２は金属で形成され、連結部５０は樹脂で形成されている。
　下ケース３１及び中ケース３２が金属で形成されていると、過度な衝撃を受けた場合に、下ケース３１及び中ケース３２自体が壊れることが困難であるため、衝撃吸収の要請が高まる。一方、連結部５０を樹脂で形成することで、過度な衝撃を受けた場合に適度に壊れ、衝撃を良好に吸収し易くすることができる。なお、連結部５０よりも剛性が高ければ、下ケース３１又は中ケース３２は、樹脂で形成されていてもよい。ただし、下ケース３１及び中ケース３２の少なくともいずれかが金属で形成されている場合に、樹脂による連結部５０が好適である。 (5) Further, the lower case 31 and the middle case 32 are made of metal, and the connecting portion 50 is made of resin.
When the lower case 31 and the middle case 32 are made of metal, it is difficult for the lower case 31 and the middle case 32 to break when an excessive impact is applied, so that the demand for shock absorption increases. On the other hand, by forming the connecting portion 50 with a resin, it can be appropriately broken when it receives an excessive impact, and it is possible to easily absorb the impact satisfactorily. The lower case 31 or the middle case 32 may be made of resin as long as the rigidity is higher than that of the connecting portion 50. However, when at least one of the lower case 31 and the middle case 32 is made of metal, the resin connecting portion 50 is suitable.
　なお、本開示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。本開示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。 Note that this disclosure is not limited to the above embodiments and drawings. Changes (including deletion of components) may be made as appropriate without changing the gist of the present disclosure.
　連結部５０の形状は以上の例に限られず、適宜変更が可能である。例えば、図５に示すように、変形例に係る連結部５０Ｍを採用してもよい。以下、この変形例を、上記実施形態と同じ機能を有する各部については、同一の符号を用いて説明する。
　変形例に係る連結部５０Ｍは、第１部分５１と、第２部分５２と、脆弱部５３と、を備える。第１部分５１は、下ケース３１の被固定部３１０に、ネジからなる第１固定部６１によって上方から固定される。第１部分５１は、例えば、その外形が円柱状に形成される。第２部分５２は、中ケース３２の被固定部３２０に、ネジからなる第２固定部６２によって上方から固定される。第２部分５２は、例えば、その外形が円柱状に形成される。脆弱部５３は、第１部分５１及び第２部分５２を連結する板状に形成される。例えば、脆弱部５３は、第１部分５１及び第２部分５２よりも薄厚に形成されることで、第１部分５１及び第２部分５２よりも脆弱に構成される。この連結部５０Ｍによっても、過度な衝撃を受けてＨＵＤ装置１００が適度に壊れることにより、衝撃を良好に吸収することができる。なお、連結部５０Ｍを採用した場合には、副固定部６３を省略することができる。 The shape of the connecting portion 50 is not limited to the above example, and can be changed as appropriate. For example, as shown in FIG. 5, the connecting portion 50M according to the modified example may be adopted. Hereinafter, this modification will be described with reference to the same reference numerals for each part having the same function as that of the above embodiment.
The connecting portion 50M according to the modified example includes a first portion 51, a second portion 52, and a fragile portion 53. The first portion 51 is fixed to the fixed portion 310 of the lower case 31 from above by the first fixing portion 61 made of screws. The outer shape of the first portion 51 is formed in a columnar shape, for example. The second portion 52 is fixed to the fixed portion 320 of the middle case 32 from above by the second fixing portion 62 made of screws. The outer shape of the second portion 52 is formed in a columnar shape, for example. The fragile portion 53 is formed in a plate shape connecting the first portion 51 and the second portion 52. For example, the fragile portion 53 is formed to be thinner than the first portion 51 and the second portion 52, so that the fragile portion 53 is configured to be more vulnerable than the first portion 51 and the second portion 52. Even with this connecting portion 50M, the impact can be satisfactorily absorbed by appropriately breaking the HUD device 100 due to an excessive impact. When the connecting portion 50M is adopted, the sub-fixing portion 63 can be omitted.
　連結部５０における脆弱部５３は、以上に示す例に限られず、第１部分５１及び第２部分５２よりも脆弱であれば、その形状は任意である。例えば、脆弱部５３は、連結部５０の第１部分５１と第２部分５２の間に形成された溝部分であってもよい。 The fragile portion 53 in the connecting portion 50 is not limited to the above-mentioned example, and its shape is arbitrary as long as it is fragile than the first portion 51 and the second portion 52. For example, the fragile portion 53 may be a groove portion formed between the first portion 51 and the second portion 52 of the connecting portion 50.
　下ケース３１と中ケース３２とを連結する連結部５０をいくつ設けるかは、設計に応じて任意である。また、一対の副固定部６３の一方を省略してもよい。同様に、一対のカップ部５１２，５１３の一方と、一対のボス３１２，３１３の一方を省略してもよい。また、中ケース３２と上ケース３３を連結部５０で連結する構成を採用することもできる。この場合、中ケース３２が第１ケースの一例であり、上ケース３３が第２ケースの一例である。 The number of connecting portions 50 for connecting the lower case 31 and the middle case 32 is arbitrary depending on the design. Further, one of the pair of sub-fixing portions 63 may be omitted. Similarly, one of the pair of cup portions 512 and 513 and one of the pair of bosses 312 and 313 may be omitted. Further, it is also possible to adopt a configuration in which the middle case 32 and the upper case 33 are connected by the connecting portion 50. In this case, the middle case 32 is an example of the first case, and the upper case 33 is an example of the second case.
　連結部５０，５０Ｍは、プラスチック、エラストマーなど公知の材料から形成されていればよく、その材料は任意である。 The connecting portions 50 and 50M may be formed of a known material such as plastic or elastomer, and the material is arbitrary.
　以上では、第１固定部６１、第２固定部６２及び副固定部６３が、それぞれ同じネジから構成される例を示したが、異なる種類のネジを含んでいてもよい。また、第１固定部６１、第２固定部６２及び副固定部６３は、ネジに限られず、例えば、ピン、フック等を利用した公知の固定部材から構成されていてもよい。 In the above, the example in which the first fixing portion 61, the second fixing portion 62, and the sub-fixing portion 63 are each composed of the same screw is shown, but different types of screws may be included. Further, the first fixing portion 61, the second fixing portion 62, and the sub-fixing portion 63 are not limited to screws, and may be composed of known fixing members using, for example, pins, hooks, and the like.
　ＨＵＤ装置１００内における光学系の構成は、表示部１０からの表示光２をウインドシールド１に放射することができれば任意であり、表示光２を反射するミラーの枚数、形状及び配置は適宜変更することができる。 The configuration of the optical system in the HUD device 100 is arbitrary as long as the display light 2 from the display unit 10 can be radiated to the windshield 1, and the number, shape, and arrangement of the mirrors that reflect the display light 2 are appropriately changed. be able to.
　以上では、ＬＣＤを用いた表示部１０について説明したが、表示部１０の構成は限定されず、任意である。例えば、表示部１０は、ＯＬＥＤ（Organic Light-Emitting Diode）を用いたものであってもよい。また、表示部１０は、ＤＭＤ（Digital Micromirror Device）と、ＤＭＤによる反射光を受けて画像を表示する透過型スクリーンを備えるものであってもよい。 Although the display unit 10 using the LCD has been described above, the configuration of the display unit 10 is not limited and is arbitrary. For example, the display unit 10 may use an OLED (Organic Light-Emitting Diode). Further, the display unit 10 may include a DMD (Digital Micromirror Device) and a transmissive screen that receives the reflected light from the DMD and displays an image.
　ＨＵＤ装置１００をユーザに向けて反射する透光部材は、車両のウインドシールド１に限定されず、板状のハーフミラー、ホログラム素子等により構成されるコンバイナであってもよい。 The translucent member that reflects the HUD device 100 toward the user is not limited to the windshield 1 of the vehicle, and may be a combiner composed of a plate-shaped half mirror, a hologram element, or the like.
　ＨＵＤ装置１００が搭載される車両の種類は限定されず、自動四輪車や、自動二輪車など様々な車両に適用可能である。 The type of vehicle on which the HUD device 100 is mounted is not limited, and it can be applied to various vehicles such as motorcycles and motorcycles.
　以上の説明では、本開示の理解を容易にするために、公知の技術的事項の説明を適宜省略した。 In the above description, in order to facilitate the understanding of the present disclosure, the description of publicly known technical matters has been omitted as appropriate.
　１００　ヘッドアップディスプレイ（ＨＵＤ）装置
　１　　　ウインドシールド
　２　　　表示光
　１０　　表示部
　２１　　第１ミラー
　２２　　第２ミラー
　３０　　筐体
　３１　　下ケース（第１ケースの一例）
　３１０　被固定部
　３１１　凹部
　３１２，３１３　ボス
　３２　　中ケース（第２ケースの一例）
　３２０　被固定部
　３３　　上ケース
　４０　　制御基板
　５０　　連結部
　５１　　第１部分
　５１１　筒部
　５１２，５１３　カップ部
　５２　　第２部分
　５３　　脆弱部
　６１　　第１固定部
　６２　　第２固定部
　６３　　副固定部
　ＡＸ　　軸線 100 Head-up display (HUD) device 1 Windshield 2 Display light 10 Display unit 21 1st mirror 22 2nd mirror 30 Housing 31 Lower case (example of 1st case)
310 Fixed part 311 Recessed part 312, 313 Boss 32 Medium case (an example of the second case)
320 Fixed part 33 Upper case 40 Control board 50 Connecting part 51 1st part 511 Cylinder part 512,513 Cup part 52 2nd part 53 Fragile part 61 1st fixing part 62 2nd fixing part 63 Sub-fixing part AX axis

Claims (5)

  1. 　第１ケース及び第２ケースを有し、画像を表す表示光を放射する表示部を収容する筐体と、
    　前記第１ケースと前記第２ケースを連結し、前記第１ケース及び前記第２ケースよりも剛性が低い連結部と、を備え、
    　前記連結部は、
    　前記第１ケースに固定される第１部分と、
    　前記第２ケースに固定される第２部分と、
    　前記第１部分と前記第２部分の間に位置し、前記第１部分及び前記第２部分よりも脆弱な脆弱部と、を備え、
    　車両のダッシュボード内に設けられるヘッドアップディスプレイ装置。     A housing having a first case and a second case and accommodating a display unit that emits display light representing an image, and a housing.
    The first case and the second case are connected to each other, and the first case and the connecting portion having a lower rigidity than the second case are provided.
    The connecting part is
    The first part fixed to the first case and
    The second part fixed to the second case and
    It is located between the first part and the second part, and includes the first part and a vulnerable part that is more vulnerable than the second part.
    A head-up display device installed in the dashboard of a vehicle.
  2. 　前記第１ケースは、前記第２ケースよりも下方に位置し、前記表示部を支持する、
    　請求項１に記載のヘッドアップディスプレイ装置。     The first case is located below the second case and supports the display unit.
    The head-up display device according to claim 1.
  3. 　前記第１部分を前記第１ケースに固定する第１固定部と、
    　前記第２部分を前記第２ケースに固定する第２固定部と、を備え、
    　前記第１固定部、前記第２固定部及び前記脆弱部は、同一の軸線上に位置する、
    　請求項１又は２に記載のヘッドアップディスプレイ装置。     A first fixing portion for fixing the first portion to the first case,
    A second fixing portion for fixing the second portion to the second case is provided.
    The first fixing portion, the second fixing portion, and the fragile portion are located on the same axis.
    The head-up display device according to claim 1 or 2.
  4. 　前記軸線上から外れた位置で前記第１部分を前記第１ケースに固定する副固定部を備える、
    　請求項３に記載のヘッドアップディスプレイ装置。     A sub-fixing portion for fixing the first portion to the first case at a position off the axis is provided.
    The head-up display device according to claim 3.
  5. 　前記第１ケース及び前記第２ケースの少なくともいずれかは金属で形成され、
    　前記連結部は、樹脂で形成されている、
    　請求項１乃至４のいずれか１項に記載のヘッドアップディスプレイ装置。     At least one of the first case and the second case is made of metal.
    The connecting portion is made of resin.
    The head-up display device according to any one of claims 1 to 4.
PCT/JP2021/018003 2020-05-14 2021-05-12 Head-up display device WO2021230277A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010064709A (en) * 2008-09-12 2010-03-25 Denso Corp Head-up display
JP2010152025A (en) * 2008-12-25 2010-07-08 Nippon Seiki Co Ltd Display device
JP2016103008A (en) * 2014-11-12 2016-06-02 日本精機株式会社 Head-up display device
JP2020138563A (en) * 2019-02-26 2020-09-03 トヨタ自動車株式会社 Head-up display device
JP2020138565A (en) * 2019-02-26 2020-09-03 トヨタ自動車株式会社 Head-up display device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010064709A (en) * 2008-09-12 2010-03-25 Denso Corp Head-up display
JP2010152025A (en) * 2008-12-25 2010-07-08 Nippon Seiki Co Ltd Display device
JP2016103008A (en) * 2014-11-12 2016-06-02 日本精機株式会社 Head-up display device
JP2020138563A (en) * 2019-02-26 2020-09-03 トヨタ自動車株式会社 Head-up display device
JP2020138565A (en) * 2019-02-26 2020-09-03 トヨタ自動車株式会社 Head-up display device

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