WO2017069039A1

WO2017069039A1 - Head-up display apparatus

Info

Publication number: WO2017069039A1
Application number: PCT/JP2016/080376
Authority: WO
Inventors: 幸夫小笠原
Original assignee: 日本精機株式会社
Priority date: 2015-10-23
Filing date: 2016-10-13
Publication date: 2017-04-27

Abstract

Provided is a head-up display apparatus that can be made compact. A holder 31 is provided with pins 32a protruding in an X axis direction from both sides in the X axis direction. A first shaft 41 is arranged, along the X axis direction, on the side opposing to the side of a display device 10 for a combiner 30. A pair of first arms 42 have one ends 42a fixed to both ends of the first shaft 41, respectively. A pair of second arms 43 have one ends 43a linked to the other ends 42b of the first arms 42 in a freely rotatable manner, respectively. A pair of third arms 48 have one ends linked to the other ends 43b of the second arms 43 in a freely rotatable manner, respectively, with pins 49a interposed therebetween. A support body 33 includes first guiding grooves 34 for guiding the pins 32a in a Z axis direction, and second guiding grooves 35 for guiding the pins 49a, on the sides closer to the display device 10 than the pins 32a, in the Z axis direction.

Description

Head-up display device

The present invention relates to a head-up display device.

2. Description of the Related Art A head-up display device that displays various types of information on a vehicle driver in a superimposed manner with a scenery in front of the vehicle has been proposed (see, for example, Patent Document 1). By using this head-up display device, the driver can grasp necessary information without performing a large line of sight movement during driving. In the head-up display device described in Patent Document 1, for example, a state where a combiner for displaying various information is stored in the dashboard and a state where the combiner is disposed on the dashboard is mounted on the dashboard of the vehicle Two states can be taken. Thereby, when the head-up display device is not used, the combiner can be stored in the dashboard, so that the combiner does not become an obstacle to the driver.

JP-A-8-113059

Incidentally, since this type of head-up display device is often arranged in a limited space such as in a dashboard of a vehicle, downsizing is required.

The present invention has been made in view of the above-described reasons, and an object thereof is to provide a head-up display device that can be miniaturized.

In order to achieve the above object, a head-up display device according to the present invention includes:
A display that emits display light indicating information toward the first direction;
A combiner that is disposed on the first direction side of the display and moves between a first position that blocks at least a portion of the display light and a second position that does not block the display light;
A reflector that is disposed on a side opposite to the display side of the combiner, and that reflects the display light emitted from the display unit in a state where the combiner is disposed at the second position;
A first pin that holds the combiner and protrudes along the third direction from both sides in a third direction orthogonal to the first direction and the second direction from the first position to the second position is provided. A holder,
A first shaft disposed along the third direction on the opposite side of the combiner from the indicator side;
A drive unit that rotates the first shaft around a central axis along a longitudinal direction of the first shaft;
A pair of first arms each having one end fixed to each end of the first shaft and extending from the first shaft toward the indicator;
A pair of second arms, one end of which is rotatably connected to the other end of the first arm;
A pair of third arms with one end rotatably connected to the other end of the second arm via a second pin and the other end connected to the holder;
A first guide groove for guiding the first pin along the second direction, and a second guide groove for guiding the second pin along the second direction on the display side of the first pin. And a support body that movably supports the holder along the second direction.

According to the present invention, the head-up display device can be reduced in size.

It is a perspective view which shows the state by which the combiner was arrange | positioned in the storage position about the head-up display apparatus which concerns on embodiment of this invention. It is a perspective view which shows the state by which the combiner was arrange | positioned in the display position about the head-up display apparatus which concerns on embodiment. It is a schematic side view of the head-up display device according to the embodiment. It is a schematic side view of the head-up display device according to the embodiment. It is a schematic side view of the head up display device concerning a comparative example. It is a schematic side view of the head up display device concerning a comparative example. (A) is a partial schematic side surface for demonstrating the operation | movement which changes the inclination of the combiner in the head-up display apparatus which concerns on a comparative example, (B) changes the inclination of the combiner in the head-up display apparatus which concerns on embodiment. It is a partial schematic side surface for demonstrating operation | movement. It is a perspective view which shows the state by which the combiner was arrange | positioned in the storage position about the head-up display apparatus which concerns on a modification.

Hereinafter, a head-up display device according to an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the head-up display device 1 includes a display 10, a plane mirror (reflecting mirror) 20, a combiner 30, a holder 31, a support body 33, a lid body 50, and a switch lever 60. Further, the head-up display device 1 is a drive for rotating the first shaft 41, the first arm 42, the second arm 43, the third arm 48, the second shaft 49, and the first shaft 41 as a mechanism for driving the combiner 30. Part 40. Furthermore, the head-up display device 1 also includes a housing (not shown) that stores these components. The head-up display device 1 is mounted on a dashboard of a vehicle. Hereinafter, in the present embodiment, the head-up display device 1 is described as being mounted on a dashboard of a vehicle. Further, in the following description, the ± Z direction in FIG.

This head-up display device 1 moves the combiner 30 in the Z-axis direction (second direction) in FIGS. 1 and 2. As a result, the combiner 30 is located at the storage position (first position) located inside the dashboard as shown in FIG. 1 and is located above the dashboard as shown in FIG. 2 to display various information. It is arrange | positioned in any one of the display position (2nd position). The head-up display device 1 is mounted on a dashboard of a vehicle so that the display 10 is disposed on the front side of the vehicle. The head-up display device 1 irradiates display light indicating various information from the display 10 toward the combiner 30 via the plane mirror 20 in a state where the combiner 30 is disposed at the display position. At this time, the display light reflected by the combiner 30 and the light transmitted through the combiner from the front enter the driver's eyes. As a result, the driver sees various information overlapping the scenery in front of the combiner 30.

The display 10 radiates display light indicating various information to the rear side (+ Y direction side in FIGS. 1 and 2). The display 10 is composed of, for example, a 3.1 inch color TFT (Thin Film Transistor) liquid crystal display. The display 10 is not limited to a liquid crystal display, and may be a laser projector or a CRT (Cathode Ray Tube).

The plane mirror 20 is disposed on the rear side of the combiner 30 (on the side opposite to the display 10 side). The plane mirror 20 reflects the display light radiated from the display 10 to the combiner 30 in a state where the combiner 30 is disposed at the display position. The plane mirror 20 is fixed to the inner wall of the housing via a mirror holder (not shown).

The combiner 30 is arranged on the rear side (the + Y direction side in FIG. 1 and FIG. 2, the first direction side) of the display 10, and the storage position that blocks the display light emitted from the display 10 and the display that does not block the display light. Move between positions. This combiner 30 is comprised by the concave half mirror formed from resin materials, such as a polycarbonate. The combiner 30 reflects part of the display light incident from the plane mirror 20 to the rear (driver side) and transmits part of the light incident from the front to the rear (driver side).

The holder 31 is long, and holds the combiner 30 in a state where the entire lower end of the combiner 30 (the end on the −Z direction side in FIGS. 1 and 2) is sandwiched from both sides in the thickness direction. The holder 31 is a pin (first pin) protruding along the longitudinal direction (X-axis direction in FIGS. 1 and 2) from both sides in the longitudinal direction (X-axis direction and third direction in FIGS. 1 and 2). 32a is provided. The pin 32a is made of a metal such as stainless steel.

The first shaft 41 is disposed along the X-axis direction on the opposite side of the combiner 30 from the display 10 side.

The driving unit 40 rotates the first shaft 41 around the central axis along the longitudinal direction of the first shaft 41. The drive unit 40 includes a DC motor 45, a worm gear 46, a reduction gear 44, a first shaft 41, and a support member 47. The DC motor 45 drives the worm 46 a of the worm gear 46. The reduction gear 44 includes two

gears

44a and 44b that mesh with each other, and the gear 44a meshes with a gear 46b that rotates together with a worm wheel of the worm gear 46 (see 46c in FIG. 3A). The first shaft 41 is fixed to the gear 44 b of the reduction gear 44. The support member 47 supports the DC motor 45, the worm gear 46, the reduction gear 44, and the first shaft 41.

The pair of first arms 42 are arranged such that one end 42a is fixed to each end of the first shaft 41 and extends from the first shaft 41 to the display 10 side. In the first arm 42, when the first shaft 41 rotates around the central axis along the longitudinal direction, the other end 42 b turns around the one end.

One end 43a of the pair of second arms 43 is rotatably connected to the other end 42b of the first arm 42. The pair of third arms 48 has one end 48 a (see FIGS. 3 and 4) rotatably connected to the other end of the second arm 43 via a pin (second pin) 49 a and the other end 48 b is the holder 31. It is fixed to. The pin 49a protrudes from the one end 48a of the third arm 48 to the side opposite to the second shaft 49 side. The pin 49a is made of a metal such as stainless steel.

The second shaft 49 connects the other ends 43b of the pair of second arms 43 whose one ends 43a are connected to the first arms 42.

The support 33 supports the holder 31 so as to be movable along the Z-axis direction. The support 33 includes a base 33b and a guide plate 33a. The base 33b includes a main piece 331b and a pillar piece 332b. The main piece 331b has a shape in which four corners of a rectangular plate are cut obliquely, and has two elongated holes 333b provided so as to be substantially parallel to each other along two opposing sides in plan view. . A support member 47 of the drive unit 40 is fixed to the main piece 331b. Further, when the combiner 30 is in the storage position, a part of the first arm 42 and the second arm 43 is inserted into each of the two long holes 333b. The pillar pieces 332b extend in the same direction along the thickness direction of the main piece 331b from both end edges in the arrangement direction of the two long holes 333b in the main piece 331b. A guide plate 33a is fixed to the column piece 332b. The base 33b is made of a metal such as stainless steel.

The guide plate 33a is long and has a slit-like angle adjustment for adjusting the tilt angle of the combiner 30 and the slit-like first guide groove 34 and the second guide groove 35 provided along the longitudinal direction thereof. And a groove 35a. The guide plate 33 a is also provided with two third guide grooves 36 for guiding the switch lever 60. The 1st guide groove 34 guides the pin 32a arrange | positioned inside the Z-axis direction. The second guide groove 35 is located closer to the display device 10 than the first guide groove 34, and guides the pin 49a disposed inside the second guide groove 35 along the Z-axis direction on the display device 10 side than the pin 32a.

The angle adjusting groove 35a guides the pin 49a to the display 10 side. The angle adjusting groove 35a communicates with the second guide groove 35 and extends from the upper end of the second guide groove 35 in a direction inclined toward the display 10 with respect to the longitudinal direction of the guide plate 33a. The two third guide grooves 36 extend in a direction intersecting the longitudinal direction of the second guide groove 35 on both sides in the width direction of the angle adjusting groove 35a. The guide plate 33a is made of a synthetic resin such as polybutylene terephthalate (PBT) resin.

The lid 50 includes a lid 51 and a follower arm 52. The lid 51 is long and is sized to close an opening (not shown) for taking in and out the combiner 30 provided on the dashboard. The driven arm 52 is supported by a shaft portion 53 fixed to the column piece 332b of the base 33b and the guide plate 33a, and is connected to both ends of the lid portion 51 in the longitudinal direction. The driven arm 52 pivots around the shaft portion 53 so that the lid portion 51 moves to a position that does not block the opening of the dashboard as the pin 32a of the holder 31 moves upward in the first guide groove 34. To do. Further, the follower arm 52 is provided with a biasing portion (not shown) that biases the lid portion 51 so as to move to a position where the lid portion 51 closes the opening of the dashboard. When the pin 32a of the holder 31 moves to the lower end in the first guide groove 34, the driven arm 52 is turned so that the urging portion moves to a position where the lid 51 closes the opening of the dashboard. The lid 51 and the follower arm 52 are both made of synthetic resin such as ABS (Acrylonitrile Butadiene Styrene) resin.

The switch lever 60 includes a lever body 61 and a pair of engaging portions 62 that engage with the two third guide grooves 36. The switch lever 60 is movable along the third guide groove 36 with the engaging portion 62 engaged with the third guide groove 36.

Next, the operation of the head-up display device 1 according to the present embodiment will be described with reference to FIGS. 3 (A), (B) and FIG. 3A, 3 </ b> B, and 4, the lid 50, the switch lever 60, and the third guide groove 36 are not shown. As indicated by an arrow AR1 in FIG. 3A, when the first shaft 41 rotates, the first arm 42 turns around one end 42a fixed to the first shaft 41. At this time, the pin 49a that protrudes from the other end 43b of the second arm 43, whose one end 43a is connected to the first arm 42, has a second guide groove 35 as shown by an arrow AR21 in FIG. Move up inside. Along with this, the third arm 48 connected to the other end of the second arm 43 also moves upward. Further, the pin 32a of the holder 31 fixed to the third arm 48 moves upward in the first guide groove 34 as indicated by an arrow AR3 in FIG. Thereby, the combiner 30 hold | maintained at the holder 31 is moved toward a display position.

Next, when the first arm 42 further pivots around the one end portion 42 a fixed to the first shaft 41, the pin 32 a of the holder 31 moves to the upper end of the first guide groove 34 as shown in FIG. The pin 49a also moves to the upper end of the second guide groove 35, and the combiner 30 comes to the display position. When the first arm 42 further pivots around the one end 42a fixed to the first shaft 41 from the state shown in FIG. 3B, the pin 49a is as shown by an arrow AR22 in FIG. 3B. Then, it starts to move in the angle adjusting groove 35 a communicating with the second guide groove 35.

After that, as indicated by an arrow AR22 in FIG. 4, when the pin 49a moves in the angle adjusting groove 35a, the third arm 48 pivots around the pin 32a of the holder 31 and its inclination changes. At this time, as shown by an arrow AR4 in FIG. 4, the tilt of the combiner 30 fixed to the holder 31 changes as the tilt of the third arm 48 changes.

On the other hand, in the state shown in FIG. 4, it is assumed that the first shaft 41 rotates in the reverse direction (the direction opposite to the arrow AR1 in FIG. 4). In this case, the first arm 42 turns around the one end 42a fixed to the first shaft 41 in the direction opposite to the turning direction when the combiner 30 moves from the storage position to the display position. At this time, the pin 49 a moves in the angle adjusting groove 35 a and returns to the upper end of the second guide groove 35. Next, when the first arm 42 further pivots in the reverse direction around the one end 42 a fixed to the first shaft 41, the pin 49 a moves downward in the second guide groove 35, and the holder 31 The pin 32a also moves downward in the first guide groove 34. At this time, the combiner 30 moves from the display position toward the storage position positioned below the display position. Thereafter, when the first arm 42 further pivots in the reverse direction around the one end 42a fixed to the first shaft 41, the pin 49a moves to the lower end of the second guide groove 35, and the pin 32a of the holder 31 moves. It moves to the lower end of the 1st guide groove 34, and the combiner 30 comes to a storing position.

As described above, in the head-up display device 1 according to this embodiment, the first arm 42 pivots about the one end portion 42a fixed to the first shaft 41, so that the combiner 30 has the storage position and the display position. Move between.

Here, in order to describe the characteristics of the head-up display device 1 according to the present embodiment, a head-up display device 1001 according to a comparative example will be described. As shown in FIG. 5A, a head-up display device 1001 according to a comparative example includes a display 10, a plane mirror 20, a combiner 30, a holder 1031, a support 1033, a pair of first arms 1042, and a pair of second arms. 1043 and the drive part 40 are provided. In FIG. 5A, the same reference numerals as those in FIG. 1, FIG. 2, and FIG.

The holder 1031 is long, and two

pins

1032a and 1032b projecting along the longitudinal direction are provided at both ends in the longitudinal direction. The two

pins

1032a and 1032b are arranged along both surfaces of the combiner 30 in the thickness direction. The support body 1033 includes a base 1033b and a guide plate 1033a. A guide plate 1033a is fixed to the base 1033b. The guide plate 1033a is long, and is provided with an elongated guide groove 1034 for guiding the combiner 30 along the longitudinal direction thereof, and an angle adjusting groove 1034a for adjusting the inclination angle of the combiner 30. ing. Inside the guide groove 1034,

pins

1032a and 1032b of the holder 31 are arranged. The angle adjusting groove 1034a communicates with the guide groove 1034 and extends from the upper end of the guide groove 1034 in a direction inclined toward the plane mirror 20 with respect to the longitudinal direction of the guide plate 33a. Each of the pair of first arms 1042 has one end portion 1042 a fixed to the end portion of the first shaft 41. Each of the pair of second arms 1043 has one end portion 1043a rotatably connected to the other end portion 1042b of the first arm 1042, and the other end portion 1043b rotatably connected to a shaft portion 1031a provided on the holder 1031. Yes.

A distance W1 between the central axis C1 of the first shaft 41 and the central axis C22 of the shaft portion 1031a in the Y-axis direction shown in FIG. 5A is set to the length of the first arm 42, for example. Further, the distance W2 between the display 10 and the combiner 30 in the Y-axis direction shown in FIG. 5A is a distance that does not allow the display 10 and the combiner 30 or the holder 31 to come into contact when the combiner 30 is tilted. Is set to In the head-up display device 1001 according to this comparative example, when the center axis C1 of the first shaft 41 is brought closer to the display 10 side (the distance W23 is shortened) in order to reduce the size of the entire device, the first amount is reduced accordingly. It is necessary to shorten the length of the arm 42. Here, the distance W23 is a distance between the central axis C1 of the first shaft 41 and the display 10 in the Y-axis direction. Then, the amount of movement of the combiner 30 in the Z-axis direction is shortened according to the length of the first arm 42 shortened. Moreover, in the head-up display device 1001 according to this comparative example, if the first shaft 41 is brought closer to the display 10 side without shortening, the second arm 43 is moved in the Z-axis direction at the display position of the combiner 30. Therefore, it is difficult to sufficiently deploy the combiner 30. In either case, the distance between the storage position of the combiner 30 and the display position cannot be sufficiently secured, and there is a possibility that it is difficult to realize such a head-up display device 1001.

On the other hand, in the head-up display device 1 according to this embodiment, as shown in FIGS. 1, 2, and 3 (A), the display is performed from the holder 31 in addition to the first arm 42 and the second arm 43. A third arm 48 extending toward the container 10 side. The end of the second arm 43 is rotatably connected to the end of the third arm 48 opposite to the holder 31 side. Also, one end 48a of the third arm 48 is guided in the Z-axis direction along the first guide groove 34 via the pin 32a, and the other end 48b of the third arm 48 is guided via the pin 49a to the first arm 48b. The first guide groove 34 is guided in the Z-axis direction along the second guide groove 35 positioned on the display 10 side. Thereby, the 3rd arm 48 can move along the Z-axis direction, maintaining the state extended from the holder 31 to the indicator 10 side. In this configuration, as shown in FIG. 3B, when the combiner 30 is in the display position, the second arm 43 is oriented along the Z-axis direction, and the first arm 42 and the end 42b are Y It can be brought closer to the display 10 side to a position corresponding to the other end 48b of the third arm 48 in the axial direction. Therefore, even when the first shaft 41 is brought closer to the display device 10, the length of the first arm 42 is equivalent to the distance between the holder 31 and the other end 48 b of the third arm 48. As a result, the length of the first arm 42 can be maintained at the same length as that of the comparative example.

As described above, by providing the third arm 48, the combiner 30 is brought to the display position while maintaining the length of the first arm 42 even when the first shaft 41 is brought closer to the display 10 side. In some cases, the second arm 43 can be set in a direction along the Z-axis direction. For this reason, in the head-up display device 1 according to the present embodiment, it is possible to reduce the size of the head-up display device 1 while ensuring a sufficient distance between the storage position of the combiner 30 and the display position.

In the head-up display device 1001 according to the comparative example, the distance W23 between the central axis C1 of the first shaft 41 and the display 10 in the Y-axis direction is a distance corresponding to the sum of the distance W1 and the distance W2. Is also getting bigger. On the other hand, in the head-up display device 1 according to the present embodiment, the distance W3 between the central axis C1 of the first shaft 41 and the display 10 in the Y-axis direction is the sum of the distance W1 and the distance W2. It is shorter than the corresponding distance. Also from this, the head-up display device 1 according to the present embodiment can shorten the distance W3 between the display unit 10 and the central axis C1 of the first shaft 41 in the Y-axis direction as compared with the comparative example. It can be seen that the display device 1 can be downsized.

Next, the operation of the head-up display device 1001 according to the comparative example will be described with reference to FIGS. 5 (A), 5 (B) and FIG. As indicated by an arrow AR 1 in FIG. 5A, when the first shaft 41 rotates, the first arm 1042 turns around one end 1042 a fixed to the first shaft 41. At this time, the

pins

1032a and 1032b of the holder 1031 connected to the other end 1043b of the second arm 1043 move upward in the guide groove 1034 as indicated by an arrow AR1021 in FIG.

Next, when the first arm 1042 further turns around the one end 1042a fixed to the first shaft 41, the pin 1032a of the holder 1031 moves to the upper end of the guide groove 1034 as shown in FIG. Then, the combiner 30 comes to the display position. When the first arm 1042 further pivots around the one end 1042a fixed to the first shaft 41 from the state shown in FIG. 5B, the pin 1032a is as shown by an arrow AR1022 in FIG. 5B. Then, it starts to move in the angle adjusting groove 1034 a communicating with the guide groove 1034.

After that, as indicated by an arrow AR1022 in FIG. 6, when the pin 1032a moves in the angle adjusting groove 1034a, the holder 31 turns around the pin 1032b while moving upward, and its inclination changes. At this time, as indicated by an arrow AR1004 in FIG. 6, the tilt of the combiner 30 held by the holder 1031 changes as the tilt of the holder 1031 changes. In other words, as indicated by an arrow AR1022 in FIG. 7A, when the pin 1032a moves in the angle adjusting groove 1034a, the distance R2 between the

pins

1032a and 1032b is a radius and the center is the center axis of the pin 1032b. Move on the matching virtual arc. The inclination angle of the holder 1031 matches the inclination angle of the alignment direction of the

pins

1032a and 1032b with respect to the longitudinal direction of the guide groove 1034.

For example, as shown in FIG. 7A, when the pin 1032a moves the angle adjusting groove 1034a by the distance L1, the tilt angle θ2 of the holder 1031 is expressed by the following formula (1).
θ2 = arcsin (L1 × sin (φ) / R2) (1)
Here, φ represents an acute angle between the extending direction of the angle adjusting groove 1034a and the extending direction of the guide groove 1034. For example, when φ = π / 4 (45 degrees) is set, Expression (1) is expressed as the following Expression (2).
θ2 = arcsin (L1 × 0.707 / R2) (2)

On the other hand, in the head-up display device 1 according to the present embodiment, as shown in FIG. 7B, when the pin 49a moves in the angle adjusting groove 35a, the third arm 48 is centered on the pin 32a of the holder 31. Turn to change its inclination. In other words, when the pin 49a moves in the angle adjusting groove 35a, the pin 49a moves on a virtual arc whose radius is the distance R1 between the

pins

49a and 32a and whose center coincides with the central axis of the pin 32a. The inclination of the holder 31 and the combiner 30 changes with the third arm 48.

For example, as shown in FIG. 7B, when the pin 49a moves the angle adjusting groove 35a by the distance L1, the inclination angle θ1 of the holder 31 and the combiner 30 is expressed by the following formula (3). .
θ1 = arcsin (L1 / R1) (3)
Here, comparing Equation (2) with Equation (3), the range of angles that θ1 and θ2 can take is less than π / 2 (90 degrees), and the arcsin (*) function is monotonous in this range. It is an increasing function. Therefore, as long as the condition of the following expression (4) is satisfied, the change amount of the angle θ1 when the pin 49a moves by the distance L1 is smaller than the change amount of the angle θ2 when the pin 1032a moves by the distance L1. .
0.707R1> R2 Formula (4)

The distance R2 between the

pins

1032a and 1032b according to the comparative example is determined by the width in the direction in which the X-axis pins 1032a and 1032b of the holder 1031 are arranged (Z direction in the state shown in FIGS. 5A and 5B). However, the width of the holder 1031 is limited to be less than the distance between the combiner 30 and the main piece 1331b of the base 1033b when the combiner 30 is disposed at the storage position. In contrast, the distance R1 between the

pins

49a and 32a according to the present embodiment is determined by the width of the guide plate 33a in the Y-axis direction, but the width of the guide plate 33a is not particularly limited. Therefore, the width of the guide plate 33a can be appropriately set so that the distance R1 between the

pins

49a and 32a satisfies the relationship of the above formula (4). In this case, the change rate of the inclination angle of the combiner 30 when the pin 49a moves in the angle adjustment groove 35a is the inclination angle of the combiner 30 when the pin 1032a according to the comparative example moves in the angle adjustment groove 1034a. Smaller than the rate of change.

Thus, in the head-up display device 1 according to the present embodiment, if the distance between the pin 32a and the pin 49a is appropriately set, the tilt of the combiner 30 when the pin 49a moves in the angle adjusting groove 35a. The rate of change in angle can be reduced compared to the comparative example. Therefore, the head-up display device 1 according to the present embodiment can set the inclination of the combiner 30 more finely than the head-up display device 1001 according to the comparative example.

Further, the head-up display device 1 according to the present embodiment includes the second shaft 2049 that connects the other end portions 43b of the pair of second arms 43 whose one end portion 43a is connected to the first arm 42. Thereby, it can suppress that the said other end part of a pair of 2nd arm 43 bends in the direction which leaves | separates mutually, or the relative position in the direction orthogonal to a X-axis direction shift | deviates. Therefore, the movement of the holder 31 and the combiner 30 in the Z-axis direction can be made smooth.

Furthermore, in the head-up display device 1 according to the present embodiment, as described above, the guide plate 33a is formed of synthetic resin and is disposed inside the first guide groove 34 and the second guide groove 35 of the guide plate 33a. The

pins

32a and 49a are made of metal. Thereby, compared with the case where the guide plate 33a is formed of metal, it is possible to reduce the contact sound generated when the pin 32a contacts the peripheral edge of the first guide groove 34.

[Modification]
In the above-mentioned embodiment, the structure provided with the 3rd shaft which connects the other end parts 43b on the opposite side to the one end part 42a fixed to the 1st shaft 41 of a pair of 1st arm 42 may be sufficient. For example, as shown in FIG. 8, in the head-up display device 2001 having this configuration, the ends of the pair of first arms 42 are connected via a third shaft 2049. The base 2033b of the support 2033 has a main piece 2331b in which an opening 2333b is formed.

In the head-up display device 2001, when the combiner 30 is disposed at the storage position, the third shaft 2049 is disposed on the opposite side of the main piece 2331b from the combiner 30 side. From this state, when the first arm 42 pivots around one end portion fixed to the first shaft 41, the third shaft 2049 moves along the opening 2333b from the opposite side of the main piece 2331b to the combiner 30 side. It moves to the combiner 30 side in the main piece 2331b.

According to this configuration, by providing the third shaft 2049, the other end portions of the pair of first arms 42 bend in a direction away from each other, or a relative position in a direction orthogonal to the X-axis direction can be obtained. It can suppress shifting. Therefore, the movement of the holder 31 and the combiner 30 in the Z-axis direction can be made smooth.

In the head-up display device 1 according to the above-described embodiment, a position detection unit (not shown) that detects the position of the pin 49a and an inclination angle that calculates the inclination angle of the combiner 30 from the position detected by the position detection unit. And a calculation unit (not shown). As described above, the change rate of the inclination angle of the combiner 30 when the pin 49a according to the embodiment moves in the angle adjustment groove 35a is the same as when the pin 1032a according to the comparative example moves in the angle adjustment groove 1034a. The change rate of the tilt angle of the combiner 30 can be reduced. Therefore, according to the configuration of this embodiment, for example, the resolution related to the detection angle of the angle calculation unit (not shown) can be improved as compared with the configuration according to the comparative example, and therefore the combiner 30 with higher accuracy. Can be detected.

In the above-described embodiment, the example in which the guide plate 33a includes the slit-shaped first guide groove 34, the second guide groove 35, and the angle adjusting groove 35a has been described. However, the first guide groove 34, the second guide groove, and the like. The shapes of the groove 35 and the angle adjusting groove 35a are not limited to the slit shape. For example, the groove shape which does not penetrate the guide plate 33a may be used.

In the above-described embodiment, the example in which the third arm 48 is fixed to the holder 31 has been described. However, the present invention is not limited to this. For example, the third arm 48 may be rotatably connected to the holder 31. Good.

In the above-described embodiment, an example in which the head-up display device 1 is mounted on a vehicle has been described. However, the present invention is not limited to this, and the head-up display device 1 may be mounted on another vehicle such as a ship or an aircraft.

The present invention is suitable for a head-up display device that displays various information on a vehicle driver in a superimposed manner with a scenery in front of the vehicle.

1: Head Up Display Device, 10: Display, 20: Plane Mirror, 30: Combiner, 31: Holder, 32a: First Pin, 33, 2033: Support, 33a: Guide Plate, 33b, 2033b: Base, 34 : First guide groove, 35: second guide groove, 35a: angle adjusting groove, 36: third guide groove, 40: drive section, 41: first shaft, 42: first arm, 42a, 42b, 43a, 43b, 48a, 48b: end, 43: second arm, 44: reduction gear, 44a, 44b, 46b: gear, 45: DC motor, 46: worm gear, 46a: worm, 46c: worm wheel, 47: support member , 48: third arm, 49: second shaft, 49a: second pin, 50: lid, 51: lid, 52: driven arm, 53: shaft, 60: switch lever, 61: main body , 62: engaging portion, 331b: main piece, 332b: pillar pieces, 333b: long hole, 2049: third shaft, 2333B: opening

Claims

A display that emits display light indicating information toward the first direction;
A combiner that is disposed on the first direction side of the display and moves between a first position that blocks at least a portion of the display light and a second position that does not block the display light;
A reflector that is disposed on a side opposite to the display side of the combiner, and that reflects the display light emitted from the display unit in a state where the combiner is disposed at the second position;
A first pin that holds the combiner and protrudes along the third direction from both sides in a third direction orthogonal to the first direction and the second direction from the first position to the second position is provided. A holder,
A first shaft disposed along the third direction on the opposite side of the combiner from the indicator side;
A drive unit that rotates the first shaft around a central axis along a longitudinal direction of the first shaft;
A pair of first arms each having one end fixed to each end of the first shaft and extending from the first shaft toward the indicator;
A pair of second arms, one end of which is rotatably connected to the other end of the first arm;
A pair of third arms with one end rotatably connected to the other end of the second arm via a second pin and the other end connected to the holder;
A first guide groove for guiding the first pin along the second direction, and a second guide groove for guiding the second pin along the second direction on the display side of the first pin. And a support that movably supports the holder along the second direction.
Head-up display device.
The support further includes an angle adjusting groove for adjusting the tilt angle of the combiner by guiding the second pin to the display side.
The head-up display device according to claim 1.
A second shaft for connecting the other ends of the pair of second arms to each other;
The head-up display device according to claim 1.
The support is
A guide plate disposed on both sides in the third direction of the holder and having the first guide groove, the second guide groove and the angle adjusting groove formed thereon;
A base for supporting the guide plate,
The first pin and the second pin are made of metal;
The guide plate is formed from a resin material,
The head-up display device according to claim 2 or 3.