JP2009001116A - Head-up display part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mainly prevent reflection of an image of a display device on front window glass. <P>SOLUTION: In this head-up display part structure, a head-up display unit 24 is installed in an instrument panel 23 installed on a lower side of the front window glass 22, the instrument panel 23 has an opening part 43 and a combiner hood 26 mounted at a front edge part of the opening part 43, the head-up display unit 24 has the display device 41 and a unit body 42 capable of storing and holding the display device 41 to project the image 44 of the display device 41 on the combiner hood 26, and a display position adjusting mechanism 47 capable of adjusting the position of a height direction of the image 44 projected on the combiner hood 26 is provided. The head-up display part structure is provided with a window reflection prevention device 71 capable of preventing reflection of the image 44 of the display device 41 on the front window glass 22. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a head-up display unit structure.

  In a vehicle such as an automobile, a front window glass is provided at a front portion of a passenger compartment. An instrument panel is installed below the front window glass.

  And a head-up display apparatus is provided with respect to such an instrument panel (for example, refer patent document 1).

  FIG. 9 shows a head-up display device currently under development. A head-up display unit 3 is installed inside an instrument panel 2 installed below the front window glass 1.

  The above-described instrument panel 2 has an opening 4 and a combiner hood 5 attached to the front edge of the opening 4. The combiner hood 5 has a backward inclined shape that covers the upper portion of the opening 4.

  On the other hand, the head-up display unit 3 includes a display device 7 and a unit body 8 that can accommodate and hold the display device 7. The unit body 8 has a cylindrical frame shape having an opening 9 substantially corresponding to the opening 4 described above at its upper end. The image 11 of the display device 7 can be projected onto the combiner hood 5 via both openings 9 and 4.

  Further, the position of the image 11 projected on the combiner hood 5 in the height direction is moved by moving the head-up display unit 3 substantially in the vehicle front-rear direction 12 (actually the movement direction 13 in the figure). Has a display position adjustment mechanism 14 capable of adjusting the display position.

  According to such a configuration, the image 11 of the display device 7 is projected onto the combiner hood 5 through the openings 9 and 4. Thereby, the passenger | crew can visually recognize the image 11 projected on the combiner hood 5. FIG.

And the position of a passenger | crew's eyes changes with the physique, how to sit down, etc., respectively. Therefore, by moving the head-up display unit 3 in the vehicle front-rear direction 12 (moving direction 13) by the display position adjusting mechanism 14, the height of the image 11 projected on the combiner hood 5 as shown in FIG. The position in the vertical direction can be adjusted.
JP-A-8-194185

  However, in the above-described head-up display unit structure, the window projection limit line 16 changes as the head-up display unit 3 is moved in the vehicle front-rear direction 12 (movement direction 13) by the display position adjustment mechanism 14, As shown in FIG. 10, a so-called window reflection in which the image 11 of the display device 7 appears on the windshield 1 may occur.

  The window limit line 16 includes a line connecting the rear edge (or upper edge) of the image 11 of the display device 7 and the tip of the combiner hood 5, an extension of this line, and the front window glass 1. It is comprised by the line extended toward the direction of reflection by the windshield 1 from the intersection of these.

  In order to solve the above-described problem, in the invention described in claim 1, a head-up display unit is installed inside an instrument panel installed below a front window glass, and the instrument panel is connected to an opening. A combiner hood attached to the front edge of the opening, and the combiner hood has a rearward inclined shape covering the upper part of the opening, and the head-up display unit includes a display device, A unit main body capable of accommodating and holding a display device, and the unit main body has a cylindrical frame shape having an opening portion substantially corresponding to the opening portion at an upper end portion thereof, and images of the display device are displayed on both openings. And is configured to be able to project onto a combiner hood through the section, and the head-up display unit is substantially A head-up display unit structure having a display position adjustment mechanism capable of adjusting the position in the height direction of the image projected on the combiner hood by moving in both front and rear directions, and the front window of the image of the display device A window projection prevention device capable of preventing reflection on glass is provided.

  According to a second aspect of the present invention, the windowing prevention device includes a windowing prevention plate provided so that the angle of the windowing prevention device can be adjusted with respect to the rear edge of the opening formed at the upper end of the unit body. The head-up display part structure according to claim 1 is characterized.

  The invention described in claim 3 is characterized by the head-up display part structure according to claim 2, wherein the windowing prevention plate is attached via an angle adjusting device so as to be adjustable in angle.

  According to the first aspect of the present invention, it is possible to prevent the image of the display device from being projected on the front window glass by the above-described configuration.

  According to the second aspect of the present invention, a windowing prevention device that can be implemented and functions effectively can be obtained with the above-described configuration. This windowing prevention device can prevent (block) the image of the display device from being projected on the front window glass by adjusting the angle of the windowing prevention plate.

  According to the invention of claim 3, the angle of the windowing prevention plate can be automatically adjusted by the angle adjusting device by the above configuration. Thereby, it is possible to eliminate the trouble of adjusting the angle of the windowing prevention plate.

  Hereinafter, embodiments embodying the present invention will be described together with illustrated examples.

  1 to 8 show an embodiment of the present invention.

  First, the configuration will be described.

  In a vehicle such as an automobile, a front window glass is provided at a front portion of a passenger compartment. An instrument panel is installed below the front window glass. A head-up display device is provided for such an instrument panel.

  In the case of the head-up display device 21 in FIG. 1 (see also FIG. 2), a head-up display unit 24 is installed inside an instrument panel 23 installed below the front window glass 22.

  The instrument panel 23 described above has an opening 25 and a combiner hood 26 attached in the vicinity of the front edge of the opening 25. The combiner hood 26 has a backward inclined shape that covers the upper portion of the opening 25. The combiner hood 26 has an inclination angle substantially corresponding to the front window glass 22. The upper end portion of the combiner hood 26 is extended to a position beyond the rear end edge portion of the opening 25. In this case, the combiner hood 26 is configured separately from the instrument panel 23 and is attached to the instrument panel 23 by, for example, claw fitting (claw fitting portion 27). The claw fitting portion 27 is provided between the lower end portion of the combiner hood 26 and the vicinity of the front edge portion of the opening 25 in the instrument panel 23.

  In FIG. 1, reference numeral 31 denotes a vehicle body strength member (steering support member or cross car beam, etc.), reference numeral 32 denotes a side ventilator duct, reference numeral 33 denotes a side differential nozzle, reference numeral 34 denotes a main harness, and reference numeral 35 denotes a meter unit. It is.

  On the other hand, the head-up display unit 24 includes a display device 41 and a unit main body 42 that can accommodate and hold the display device 41 therein. For the display device 41, for example, a liquid crystal panel or other equivalent device is used. The unit main body 42 is provided with a bottomed cylindrical frame shape having an opening 43 substantially corresponding to the opening 25 described above at its upper end. And it is comprised so that the image 44 of the display apparatus 41 can be projected on the combiner food | hood 26 via both opening part 43,25.

  The head-up display unit 24 is installed in a narrow space inside the instrument panel 23 so as to avoid various internal components such as the side ventilator duct 32, the side differential nozzle 33, and the main harness 34 described above. Yes. In this case, the head-up display unit 24 is installed in a backward inclined state in accordance with a space that can be secured. As described above, with the head-up display unit 24 being rearwardly inclined, the opening 43 has the upper end portion of the unit body 42 substantially parallel to the substantially horizontal upper surface portion of the instrument panel 23. It is said that it was cut diagonally so that. Note that the opening 25 and the opening 43 are substantially opposed to each other with a predetermined interval in the vertical direction.

  Further, by moving the head-up display unit 24 in the vehicle front-rear direction 45 (actually, the movement direction 46 in the figure), the height of the image 44 projected on the combiner hood 26 is increased. A display position adjusting mechanism 47 capable of adjusting the position is provided.

  For example, the display position adjustment mechanism 47 is as shown in FIGS. 3 to 7 (refer mainly to FIG. 3).

  That is, first, the guide member 51 capable of guiding the unit main body 42 of the head-up display unit 24 in the substantially vehicle front-rear direction 45 (moving direction 46) is provided. The guide member 51 is disposed in a substantially abutting state with respect to the bottom surface of the unit main body 42. In this case, the guide member 51 has a substantially Japanese character frame shape or a character frame shape in a plan view.

  And the guide mechanism part 52 is provided between the guide member 51 and the bottom face of the unit main body 42 (refer FIG. 7). In this case, the guide mechanism portion 52 includes a slide rail portion 53 provided on the guide member 51 and a slide body 54 provided on the bottom surface of the unit main body 42. The slide rail portion 53 extends on the upper surface side of the guide member 51 (the contact surface side with respect to the bottom surface of the unit main body 42) toward the vehicle front-rear direction 45 (movement direction 46). The slide body 54 can be slidably fitted to the slide rail portion 53. As shown in FIG. 4, a pair of left and right slide rail portions 53 are preferably provided. On the other hand, the slide body 54 is preferably provided for each corner portion (or the vicinity thereof) on the bottom surface of the unit main body 42 (not particularly shown).

  Next, as shown in FIG. 5, a drive device such as a motor 55 is attached to the guide member 51, and a pinion 56 is attached to the output shaft of the motor 55. And the rack part 57 which meshes with the pinion 56 is provided in the bottom face of the unit main body 42, and a movable mechanism part is comprised. The rack portion 57 extends substantially in the vehicle front-rear direction 45 (moving direction 46). In this case, the rack portion 57 is provided at the center of the width of the bottom surface of the unit main body 42 or the like.

  As shown in FIG. 3, the guide member 51 is attached to the vehicle body strength member 31 via a fixing bracket 61 (screw fixing portions 62 and 63). Further, the driving device such as the motor 55 is attached to the guide member 51 via a motor bracket 64 (screw fixing portion 65).

  In addition to the basic configuration as described above, in this embodiment, a windowing prevention device 71 capable of preventing the image 44 of the display device 41 from being reflected on the front window glass 22 (so-called window projection) is provided ( (See FIG. 1).

  More specifically, the windowing prevention device 71 includes a windowing prevention plate 72 provided so that the angle of the rear edge of the opening 43 formed at the upper end of the unit main body 42 can be adjusted. .

  As shown in FIG. 3 (FIG. 4), the windowing prevention plate 72 is a strip-shaped blade (light shielding plate) having a length substantially equal to the width of the rear edge of the opening 43. The window projection prevention plate 72 is installed with its upper part protruding upward from the opening 43 and its lower part inserted into the opening 43. The window projection prevention plate 72 is pivotally supported by a corresponding shaft hole 74 provided at the rear edge of the opening 43 so that the support shaft 73 projecting from both ends of the lower portion of the window projection prevention plate 72 can be rotated. The support shaft 73 is extended outward in the width direction of the opening 43.

  The windowing prevention plate 72 may be manually adjustable in angle, but preferably, the windowing prevention plate 72 is attached via the angle adjustment device 76 so that the angle can be adjusted. To do.

  Therefore, a drive device such as a motor 77 connected to one of the support shaft portions 73 is provided as the angle adjustment device 76. Even if the driving device such as the motor 77 is directly connected to the support shaft portion 73 to directly drive the windowing prevention plate 72, the windowing prevention plate 72 is indirectly driven through a driving force transmission mechanism (not shown). You may make it do. As the motor 77, for example, a stepping motor or the like can be used.

  In this case, a control device 78 that can control the angle adjustment amount of the windowing prevention plate 72 by the angle adjustment device 76 in conjunction with the movement amount of the head-up display unit 24 by the display position adjustment mechanism 47 is further provided.

  As shown in FIG. 8, the control device 78 controls the drive device such as the motor 55 of the display position adjustment mechanism 47 with a control signal by an operation signal 82 from the display position adjustment switch 81 for operating the display position adjustment mechanism 47. 83 is sent so that the display position (height) of the image 44 can be adjusted, and a control signal 84 is sent to a driving device such as the motor 77 of the angle adjusting device 76 to prevent window reflection. It has a configuration. The control signal 84 supports the angle of the windowing prevention plate 72 corresponding to the position of the head-up display unit 24 substantially in the vehicle front-rear direction 45.

  Next, the operation of this embodiment will be described.

  The image 44 of the display device 41 is projected onto the combiner hood 26 through the openings 43 and 25. Thereby, the passenger | crew can visually recognize the image 44 projected on the combiner hood 26. FIG.

  At this time, the position of the occupant's line of sight differs depending on the physique and the way of sitting. Therefore, the position in the height direction of the image 44 projected on the combiner hood 26 is adjusted by moving the head-up display unit 24 in the vehicle front-rear direction 45 (moving direction 46) by the display position adjusting mechanism 47. be able to.

  In order to adjust the position of the image 44 in the height direction, the occupant operates the display position adjustment switch 81. As a result, the operation signal 82 from the display position adjustment switch 81 is sent to the control device 78, and the control device 78 sends a control signal 83 to a drive device such as the motor 55 of the display position adjustment mechanism 47, whereby the motor 55. And the meshing position of the pinion 56 and the rack portion 57 is moved. As a result, the head-up display unit 24 moves substantially along the guide mechanism portion 52 in the vehicle front-rear direction 45 (movement direction 46). Moved to. As a result of movement of the head-up display unit 24 in the vehicle front-rear direction 45 (movement direction 46), the position of the image 44 in the height direction is adjusted.

  At this time, at the same time, a control signal 84 is sent from the control device 78 to a drive device such as the motor 55 constituting the angle adjustment device 76, and the drive device such as the motor 55 is appropriately rotated to prevent windowing. The angle of the plate 72 is automatically adjusted.

  As a result, even if the window projection limit line changes with the movement of the head-up display unit 24 by the display position adjustment mechanism 47, it functions to block by adjusting the angle of the window projection prevention plate 72. It is possible to prevent so-called window reflection in which the image 44 of the display device 41 appears on the front window glass 22.

  Thus, according to this embodiment, the head-up display unit 24 is installed inside the instrument panel 23 installed below the front window glass 22, and the instrument panel 23 includes the opening 43 and the opening. The combiner hood 26 attached to the front edge portion of the head 43, the combiner hood 26 has a rearwardly inclined shape covering the upper portion of the opening 43, and the head-up display unit 24 includes the display device 41 and the display device. The unit main body 42 has a cylindrical frame shape having an opening 43 substantially corresponding to the opening 43 at the upper end thereof. It is configured so that it can be projected onto the combiner hood 26 through both openings 43, and the head up A head-up display unit structure having a display position adjustment mechanism 47 capable of adjusting the position in the height direction of the image 44 projected on the combiner hood 26 by moving the play unit 24 substantially in the vehicle front-rear direction, By providing the windowing prevention device 71 capable of preventing the image 44 of the display device 41 from being reflected on the front window glass 22, the windowing prevention device 71 causes the image 44 of the display device 41 to be transferred to the front window glass 22. Can be prevented.

  Further, the windowing prevention device 71 can be implemented by the windowing prevention plate 72 provided so that the angle can be adjusted with respect to the rear edge of the opening 43 formed at the upper end of the unit main body 42. And the windowing prevention apparatus 71 which functions effectively can be obtained. This windowing prevention device 71 can prevent (block) the reflection of the image 44 of the display device 41 on the front window glass 22 by adjusting the angle of the windowing prevention plate 72.

  Furthermore, since the windowing prevention plate 72 is attached via the angle adjusting device 76 so that the angle can be adjusted, the angle adjusting device 76 can automatically adjust the angle of the windowing prevention plate 72. As a result, the trouble of adjusting the angle of the windowing prevention plate 72 can be eliminated.

  The control device 78 is provided that can control the angle adjustment amount of the windowing prevention plate 72 by the angle adjustment device 76 in conjunction with the movement amount of the head-up display unit 24 by the display position adjustment mechanism 47. At 78, the windowing prevention plate 72 can be controlled so as to always have the optimum angle.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described.

It is side sectional drawing of the head-up display part structure concerning the Example of this invention. It is the elements on larger scale of FIG. It is an enlarged side view which shows the head-up display unit part of FIG. It is the perspective view which looked at FIG. 3 from diagonally upward. It is the perspective view which looked at FIG. 3 from diagonally downward. FIG. 6 is a bottom view of FIG. 5. It is an enlarged view of the guide mechanism part in the display position adjustment mechanism of the head-up display part structure concerning the Example of this invention. It is a control system diagram with respect to the head-up display part structure concerning the Example of this invention. It is side sectional drawing of the head-up display part structure under development currently described as description in the column of a prior art example. It is a figure which shows the state which performed height adjustment in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 22 Front window glass 23 Instrument panel 24 Head-up display unit 25 Opening part 26 Combiner hood 41 Display apparatus 42 Unit main body 43 Opening part 44 Image 47 Display position adjustment mechanism 71 Window projection prevention apparatus 72 Window projection prevention board 76 Angle adjustment apparatus

Claims (3)

A head-up display unit is installed inside the instrument panel installed below the front window glass,
The instrument panel has an opening and a combiner hood attached to the front edge of the opening, and the combiner hood has a rearwardly inclined shape covering the upper part of the opening,
The head-up display unit has a display device and a unit main body capable of accommodating and holding the display device, and the unit main body has a cylindrical frame shape having an opening substantially corresponding to the opening at the upper end. And an image of the display device is configured to be projected onto a combiner hood through both openings,
A head-up display unit structure having a display position adjustment mechanism capable of adjusting the position in the height direction of the image projected on the combiner hood by moving the head-up display unit substantially in the vehicle front-rear direction,
A head-up display unit structure comprising a window projection prevention device capable of preventing the image of the display device from being projected on a front window glass.   2. The windowing prevention device is provided with a windowing prevention plate provided so as to be adjustable in angle with respect to a rear edge portion of an opening formed in an upper end portion of the unit main body. The head-up display part structure as described.   3. The head-up display unit structure according to claim 2, wherein the windowing prevention plate is attached via an angle adjusting device so as to be adjustable in angle.

Images