JP2006021584A - Car-mounted display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car-mounted display device to be installed at the back of a seat in a vehicle cabin, capable of making the screen easily visible from the rear seat by installing a plurality of such display devices in different positions. <P>SOLUTION: The car-mounted display device 10 is installed on the back surface of the seat back part 1b of a driver seat 1 in a vehicle and is furnished with an accommodation part 11 to be provided in the seat back part 1b, an display unit 18 to be accommodated in the accommodation part 11, and a supporting device to support the display unit 18. If a steering wheel 44 is lifted while the display unit 18 lies in the accommodated position I, the unit 18 is unlocked, lifted together with the steering wheel 44, and set in the first service position II. It may also be acceptable that the display unit 18 is moved sideways and set in the second service position III. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an in-vehicle display device that is disposed on a back portion of a seat of a vehicle and can have display units installed at at least three positions.

  For in-vehicle display devices, a display unit is installed in a front position where a passenger sitting in a driver's seat or a passenger seat can see, and the display unit is mounted in a driver's seat or a passenger seat. Some are installed behind the scenes so that no one can see them. In the display unit arranged in front of the driver's seat and the passenger seat, mainly map information for car navigation, information related to vehicle travel, air conditioning in the passenger compartment, and the like are displayed. Moreover, it is general that the display unit installed at the rear enables a television image to be displayed.

  Patent Document 1 below discloses an in-vehicle display device in which a display unit is installed on the back of a front seat so that a passenger sitting on the back seat can see the screen of the display unit. . In this in-vehicle display device, the display unit can be installed at a position in close contact with the back portion of the seat back and a position moved upward from the back portion.

Patent Document 2 below discloses a vehicle-mounted display device in which a display unit can be installed on an armrest in a vehicle compartment and the display unit can be stored in the armrest.
JP-A-4-154442 Microfilm of Japanese Utility Model No. 62-149263 (Japanese Utility Model Application No. 64-54853)

  In the in-vehicle display device described in Patent Document 1, the display unit can be installed only at two positions: a position where the display unit is in close contact with the back portion of the front seat and a position where the display unit is moved upward. Therefore, the display unit can be visually observed only by a passenger sitting directly behind the front seat. In addition, since the screen of the display unit remains exposed at each of the two positions, it is not preferable for the safety of the passenger in the rear seat, and the display unit is exposed so that it can be parked. There is also a problem that the display unit is easily stolen.

  Next, in the vehicle-mounted display device described in Patent Document 2, the display unit can be installed at two positions, the position where the display unit has moved above the armrest or to the side of the armrest. However, it is difficult for a plurality of passengers seated in the rear seat to install the screen in an easy-to-see state.

  The present invention solves the above-described conventional problems, and can be installed at a position where the screen is easy to see even when there are one or more passengers seated in the rear seat, and the screen is not visible when not in use. An object of the present invention is to provide an in-vehicle display device that can store a display unit.

The in-vehicle display device of the present invention is provided with a storage unit installed in a vehicle interior, a display unit having a screen, and a support device that stabilizes the display unit at at least three positions.
The three positions are a storage position in which the screen is stored in the storage portion provided on the back portion of the seat so that the screen cannot be seen from the outside, and the screen on the back portion of the seat that protrudes upward from the storage portion. A first use position that is directed rearward and a second use position that moves to the side of the first use position and the screen is directed rearward.

  In the above-mentioned in-vehicle display device, the screen of the display unit in the storage position is not exposed, so that it is safe for the passenger in the rear seat, and the display unit is not exposed, so that it is easy to prevent the display unit from being stolen. Further, when the display unit is installed at the first use position, a passenger sitting mainly behind the seat can easily see the screen. When the display unit is installed at the second use position, a plurality of rear seats are provided. The person can see the screen.

  For this purpose, for example, in the first use position, at least a part of the display unit is preferably installed behind a headrest provided above the back of the seat, and in the second use position, Preferably, at least a part of the display unit is installed behind the space between the backs of two seats arranged side by side.

  In the present invention, the support device includes a lock mechanism that locks the display unit in at least the three positions, and the lock mechanism includes a handle that unlocks the display unit. When the handle is lifted upward, the lock by the lock mechanism is released and the display unit is lifted upward.

  In the configuration described above, the display unit is unlocked and the display unit can be lifted simply by lifting the handle, so that the operation is easy.

  For example, according to the present invention, the support device includes a rotation arm, a first fulcrum portion that rotatably supports a base portion of the rotation arm on a fixed side, a tip portion of the rotation arm, and the display unit. The first fulcrum part and the second fulcrum part can be configured such that the respective rotation center axes are directed substantially parallel to each other. .

  In the in-vehicle display device, the display unit can be installed at the storage position, the first use position, and the second use position by merely turning the turning arm with the first fulcrum portion as a fulcrum. is there.

  In this case, when the display unit is in the storage position, the first fulcrum part and the second fulcrum part are separated on both the left and right sides with a middle point that bisects the display unit in the left and right directions. Preferably it is in position.

  If comprised in this way, it will become easy to arrange | position the display unit installed in the 2nd use position in the position as far as possible to the side from the said storage position.

  Further, when the display unit is in the storage position, the first fulcrum part and the second fulcrum part are separated from each other on both upper and lower sides with a middle point that bisects the display unit vertically. Preferably there is.

  If comprised in this way, it will become possible to arrange | position the display unit installed in the 2nd use position in the position which moved upwards rather than the storage position.

  Furthermore, the present invention is such that when the display unit is in the storage position, the first fulcrum portion and the second fulcrum portion overlap the display unit without protruding from the periphery of the display unit. It is preferable.

  With the above configuration, the overall size of the in-vehicle display device can be reduced in a state where the display unit is stored in the storage unit.

  In the present invention, the display unit is installed at the first use position moved upward from the storage portion, so that the screen can be easily seen from the rear of the seat, and the second move from the first use position to the side. By installing in the use position, it becomes easier for the plurality of passengers in the rear seat to see the screen.

  FIG. 1 is a perspective view showing a state in which an in-vehicle display device of the present invention is installed in a vehicle interior, and FIGS. 2 to 5 are front views showing the in-vehicle display device in the order of operation.

  FIG. 1 shows a part of a passenger compartment of a car. A driver seat 1 and a passenger seat 2 are arranged side by side at the front of the passenger compartment. A wheel 3 is provided. The driver's seat 1 includes a seating portion 1a, a backrest portion 1b, and a headrest 1c located on the upper portion of the backrest portion 1b. Similarly, the passenger seat 2 has a seating portion 2a, a backrest portion 2b, and a headrest 2c. In addition, a space 4 is formed between the backrest portion 1b and the backrest portion 2b between the driver's seat 1 and the passenger seat 2 arranged side by side.

  A vehicle-mounted display device 10 according to an embodiment of the present invention is disposed on the back of the driver's seat 1, that is, on the back of the backrest 1b.

  The in-vehicle display device 10 includes a storage portion 11 that is fixed to the back surface of the backrest portion 1b. The storage portion 11 has a fixing portion 12 fixed to the back surface of the backrest portion 1b, a cover portion 13 facing the fixing portion 12, a bottom wall portion 14 and a side wall portion 15, and has a storage space inside. 16 is formed. The storage space 16 is open upward and on both sides at portions other than the bottom wall portion 14 and the side wall portion 15. In this embodiment, the storage portion 11 is formed separately from the backrest portion 1b, and the fixing portion 12 is fixed to the back surface of the backrest portion 1b. However, the storage portion 11 is integrated with the backrest portion 1b. It may be formed.

  A display unit 18 can be stored in the storage portion 11. The display unit 18 is provided with a screen 19 on the surface of the casing 18a, and the screen 19 is directed toward the rear seat. Further, a tuner, an image processing circuit, and the like for constituting a television receiver are built in the housing 18a.

  As shown in FIG. 1, the display unit 18 can be placed at three positions. The three positions are a storage position (I), a first use position (II), and a second use position (III). At the storage position (I), the display unit 18 is stored in the storage space 16 of the storage unit 11, and at this time, the screen 19 is covered with the cover unit 11 and hidden from view. ing.

  When the display unit 18 is pulled upward from the storage position (I), the first use position (II) is obtained. In the first use position (II), the screen 19 of the display unit 18 is exposed, and this screen 19 is directed to the rear seat. In the first use position (II), since the display unit 18 has a height at which at least a part of the display unit 18 overlaps behind the headrest 1c, the screen 19 is a height close to the position of the eyes of the passenger sitting on the rear seat. It becomes.

  In this embodiment, as shown in FIG. 4, the position of the display unit 18 in the left-right direction is substantially the same at the first use position (II) and the storage position (I). That is, in the first use position (II), the display unit 18 is located directly above or almost directly above the storage unit 11. Therefore, when the display unit 18 is installed at the first use position (II), the passenger sitting on the rear seat just behind the driver's seat 1 can easily see the screen 19.

  When the display unit 18 moves to the left from the first use position (II), the second use position (III) is obtained. Even in the second use position, the screen 19 is directed backward. In the second use position (III), at least a part of the display unit 18 is located behind the space 4 between the driver's seat 1 and the passenger seat 2. In this case, it is preferable that the center that bisects the display unit 18 in the second use position (III) substantially coincides with the center of the space 4 in the left-right direction.

  Further, in this embodiment, as shown in FIG. 5, the display unit 18 located at the second use position (III) is substantially the same height as the display unit 18 at the first use position (II). Installed. Therefore, the screen 19 is easy to see for two or three passengers seated in the rear seat.

  2 to 5 show a support device 20 for installing the display unit 18 in the three positions (I), (II) and (III). 2 to 5 show only the bottom wall portion 14 and the side wall portion 15 of the storage portion 11.

  2 shows a state in which the display unit 18 is locked at the storage position (I), FIG. 3 shows a state in which the display unit 18 in the storage position (I) is unlocked, and FIG. FIG. 5 shows a state where the display unit 18 is locked at the second use position (III).

  The support device 20 is provided with a rotating arm 21. An elongated hole 22 a is formed in the base portion 22 of the rotating arm 21. A first support shaft 23 serving as a first fulcrum is fixed to the fixed portion 12 of the storage portion 11, and the elongated hole 22 a is rotatable and slidable on the first support shaft 23. Has been extrapolated to. A locking protrusion 22b protrudes integrally from the base portion 22, and the protruding direction of the locking protrusion 22b coincides with the direction in which the elongated hole 22a extends.

  A bearing portion 24 a that is a circular hole is formed at the tip portion 24 of the rotating arm 21. A second support shaft 25 serving as a second fulcrum portion is provided on the back surface of the casing 18a of the display unit 18 (a surface facing forward in the vehicle interior shown in FIG. 1, that is, a surface facing the back surface of the backrest portion 1b). The second support shaft 25 is rotatably inserted into the bearing portion 24a.

  A first lock recess 24b, a second lock recess 24c, and a third lock recess 24d extending radially in the axial direction of the second support shaft 25 are formed on the outer peripheral surface of the tip 24 of the rotating arm 21. Is formed. In this embodiment, the lock recesses 24b, 24c, 24d are formed at an angle of 90 ° to each other.

  The axial center line of the first support shaft 23 and the axial center line of the second support shaft 25 are parallel to each other and both extend in a direction perpendicular to the screen 19. When the rotation arm 21 rotates about the first support shaft 23, the second support shaft 25 rotates along an arc locus L centering on the first support shaft 23. Further, the rotation surface when the display unit 18 rotates about the second support shaft 25 is parallel to the plane including the arc locus L.

  A guide part 31 is formed on the fixed part 12 of the storage part 11, and a sliding surface 31 a is formed on the guide part 31. The sliding surface 31a is a cylindrical surface centered on the first support shaft 23, and when the rotating arm 21 rotates about the first support shaft 23, the tip of the lock protrusion 22b is The sliding surface 31a can be slid. The guide portion 31 is formed with a lock groove 31b. The lock groove 31 b is formed along a vertical line passing through the center of the first support shaft 23.

  A first positioning part 31 c is formed on the right side of the guide part 31 in the figure, and a second positioning part 31 d is formed on the left side of the guide part 31 in the figure.

  The support device 20 includes a lock mechanism 40. The lock mechanism 40 is provided on the same back surface as the second support shaft 25 is provided in the housing 18 a of the display unit 18.

  A support portion 41 is provided on the casing 18 a of the display unit 18, and a lock shaft 42 is slidably provided on the support portion 41. The sliding direction of the lock shaft 42 is a direction orthogonal to the upper surface 18b of the housing 18a. A compression coil spring 43 serving as a lock urging member is interposed between the latching portion 42 a provided on the lock shaft 42 and the support portion 41, and the lock shaft 42 always keeps the lock shaft 42. It is biased downward.

  A handle 44 is integrally formed at the upper end of the lock shaft 42, and a part of the handle 44 protrudes upward from the upper surface 18b of the housing 18a. The casing 18a is provided with a stopper 45 so that the handle 44 comes into contact with the stopper 45 when the handle 44 is lifted as shown in FIG.

Next, the operation of the in-vehicle display device 10 will be described.
In FIG. 2, the lock shaft 42 of the lock mechanism 40 is formed at the front portion 24 of the rotating arm 21 at the storage position (I) where the display unit 18 is stored in the storage space 16 of the storage portion 11. The rotary arm 21 and the display unit 18 are locked to each other by fitting in the lock recess 24b. Further, the rotating force in the clockwise direction acts on the rotating arm 21 by its own weight, and the rotating arm 21 hits the first positioning portion 31c at the right end portion of the guide portion 31, so that the posture of the rotating arm 21 is increased. Is stable.

  In FIG. 2, the illustrated left end portion of the elongated hole 22 a formed in the base portion 22 of the rotating arm 21 hits the first support shaft 23, and the lock protrusion 22 b hits the sliding surface 31 a of the guide portion 31. Therefore, the rotating arm 21 does not rattle from side to side, and the display unit 18 can also be prevented from rattling from side to side.

  When the display unit 18 is used, the handle 44 protruding from the upper surface 18b of the housing 18a of the display unit 18 is lifted upward as shown in FIG. Since the elastic force of the compression coil spring 43 urging the lock shaft 42 downward is set to be lighter than the weight of the display unit 18, when the handle 44 is pulled upward, as shown in FIG. The lock shaft 42 integrated with the handle 44 comes out of the first lock recess 24b, and the lock between the rotating arm 21 and the display unit 18 is released.

  Since the lifted handle 44 hits a stopper 45 provided on the casing 18a of the display unit 18, when the handle 44 is further lifted from the state of FIG. 3, the rotating arm 21 uses the first support shaft 23 as a fulcrum. It rotates counterclockwise. At this time, since the lock protrusion 22b of the rotating arm 21 slides on the sliding surface 31a, the rotating arm 21 can rotate stably without rattling. Further, since the lock between the display unit 18 and the rotating arm 21 is released, the display unit 18 can be lifted in the posture shown in FIG.

  When the rotating arm 21 is rotated to the position shown in FIG. 4, the lock protrusion 22b is fitted into the lock groove 31b. At this time, the rotating arm 21 receives its own weight and the load of the display unit 18 and operates so that the elongated hole 22a slides downward along the first support shaft 23, so that the handle 44 is held. When the pivot arm 21 is pivoted to the position shown in FIG. 4, the lock projection 22b is fitted into the lock groove 31b almost automatically.

  When the rotary arm 21 stops rotating due to the fitting, if the hand is released from the handle 44, the handle 44 and the lock shaft 42 are lowered by the urging force of the compression coil spring 43, and the lock shaft 42 is rotated. The rotating arm 21 and the display unit 18 are locked by being fitted into the second lock recess 24 c of the tip 24 of the arm 21. As a result, the display unit 18 is stabilized at the first use position (II). The posture of the screen 19 at this time is in a state in which the screen edge is oriented in the horizontal direction and the vertical direction in the same manner as the screen 19 at the storage position (I).

  As shown in FIG. 4, when the display unit 18 is in the first use position (II), when the handle 44 is pulled upward, the lock shaft 42 is first lifted together with the handle 44, and the lock shaft 42 is moved to the second position. The lock arm 24 and the display unit 18 are released from the lock recess 24c. When the handle 44 is further lifted, the handle 44 hits the stopper 45, the display unit 18 is lifted together with the handle 44, and the rotating arm 21 is also lifted. And the long hole 22a formed in the base 22 slides the 1st support shaft 23 upward, and the lock protrusion 22b remove | deviates from the lock groove 31b.

  If the rotating arm 21 is rotated clockwise as it is, the display unit 18 returns to the storage position (I) shown in FIG. Further, when the rotation arm 21 is rotated counterclockwise after the lock protrusion 22b is detached from the lock groove 31b as described above, the rotation arm 21 is moved to the left end of the guide portion 31 as shown in FIG. The rotating arm 21 hits the second positioning portion 31d and is stabilized in a state where it hits the second positioning portion 31d by its own weight and the load of the display unit 18.

  At this time, when the hand is released from the handle 44, the handle 44 and the lock shaft 42 are lowered by the urging force of the compression coil spring 43, and the lock shaft 42 enters the third lock recess 24 d of the tip 24 of the rotating arm 21. The display unit 18 and the rotating arm 21 are locked with each other. Therefore, the display unit 18 is stabilized at the second use position (III). When the display unit 18 is stabilized at the second use position (III), the edge of the screen 19 is directed in the horizontal direction and the vertical direction. That is, the upper surface 18b of the display unit 18 is always in a horizontal orientation in the storage position (I), the first use position (II), and the second use position (III), and the posture of the screen 19 does not change.

  In this embodiment, as shown in FIG. 5, when the display unit 18 is in the second use position (III), the long hole 22a formed in the base 22 of the rotating arm 21 is in a horizontal orientation, The rotating arm 21 is easy to move left and right. Therefore, it is preferable to provide a light lock mechanism that lightly locks the rotating arm 21 so that the rotating arm 21 does not move to the right when the rotating arm 21 rotates to the position shown in FIG. . Alternatively, the lock protrusion 22b provided on the base portion 22 of the rotating arm 21 and the arm portion of the rotating arm 21 are formed by shifting the position in the axial direction of the first support shaft 23, and further the guide portion 31. If the sliding surface 31a is extended in a circular arc shape on the right side and the lock protrusion 22b is in contact with the sliding surface 31a in the state of FIG. 5, the rotating arm 21 moves to the left and right in the state of FIG. Can be prevented.

  Next, referring to FIG. 4, the second support shaft when the display unit 18 is installed in the storage position (I), the first use position (II), and the second use position (III), respectively. The 25 stop positions will be described.

  In FIG. 4, the stop position of the second support shaft 25 when the display unit 18 is in the storage position (I) is indicated by (A). While the display unit 18 reaches the first use position (II), the second support shaft 25 rotates along the arc locus L starting from the stop position (A) and moves to the position (B). Then, it is slightly lowered and becomes the stop position (B1) at the first use position (II). Further, when the display unit 18 is set to the second use position (III), the second support shaft 25 circulates along the arc locus L from the position (B) and moves to the position indicated by (C). Then, it descends from that position and becomes the stop position (C1) at the second use position (III).

  In this embodiment, a position (A) where the second support shaft 25 stops at the storage position (I), and a position (B1) where the second support shaft 25 stops at the first use position (II). Are located on the same vertical line V1. Alternatively, it almost coincides with the vertical line V1. Therefore, the position of the display unit 18 in the left-right direction is the same when it is in the storage position (I) and when it is in the first use position (II). Therefore, for example, in the storage position (I), if the display unit 18 is set so as to be positioned approximately at the center in the width direction of the backrest portion 1b of the driver's seat 1, the first use position (II) is obtained. The display unit 18 is also positioned at the center of the backrest 1b. Therefore, the screen 19 faces the front of the passenger sitting behind the driver's seat 1.

  In this embodiment, the second support shaft 25 is located on the same horizontal line H1 in the first use position (II) and the second use position (III). Or substantially coincides with the horizontal line H1. Therefore, in the second use position (III), the display unit 18 can be set at the same height as the first use position (II), and the screen 19 is easily visible for a plurality of passengers seated in the rear seat. Installed.

  Here, as shown in FIG. 2, when the display unit 18 is in the storage position (I), the first support shaft 23 is located on the left side across the center line O that bisects the display unit 18 left and right, The second support shaft 25 is located on the right side. Therefore, when the rotating arm 21 is rotated to the second use position (III) shown in FIG. 5, the display unit 18 can be installed at a position as far away as possible from the storage portion 11.

  In the storage (I) shown in FIG. 2, the first support shaft 23 is positioned above a center line that bisects the display unit 18 and the second support shaft 25 is positioned below the center line. positioned. Therefore, the display unit 18 can be arranged at a high position in the first use position (II) shown in FIG. 4 and the second use position (III) shown in FIG.

  Further, since the first support shaft 23 and the second support shaft 25 do not protrude from the periphery of the display unit 18 at the storage position (I) in FIG. 2, the in-vehicle display device 10 can be formed in a small size. .

  The stop position of the second support shaft 25 is not limited to the above embodiment. For example, at the first use position (II), the stop position of the second support shaft 25 is the intersection (i) of the horizontal line H0 passing through the center of the first support shaft 23 and the arc locus L as shown in FIG. ) To an intersection (ii) between the vertical line V0 passing through the center of the first support shaft 23 and the arc locus L, and the second support shaft 25 can be set at a plurality of locations within the range. May be stopped.

  Further, the second use position (III) can be arbitrarily set in a range from the intersection (ii) to the intersection (iii) between the horizontal line H0 and the arc locus L, and the second support shaft in the range. 25 may be stopped at a plurality of locations.

  If it is the said range, in the 1st use position (II) and the 2nd use position (III), the display unit 18 can be set to a position higher than the time of the storage position (I).

The partial perspective view which shows the vehicle interior of the motor vehicle in which the vehicle-mounted display apparatus of this invention was installed, The front view which shows the vehicle-mounted display apparatus when a display unit exists in a storage position, The front view which shows the vehicle-mounted display apparatus when a display unit is unlocked in a storage position, The front view which shows the vehicle-mounted display apparatus when a display unit exists in a 1st use position, The front view which shows the vehicle-mounted display apparatus when a display unit exists in a 2nd use position,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's seat 1b Backrest part 2 Passenger's seat 4 Space 10 In-vehicle display device 11 Storage part 16 Storage space 18 Display unit 19 Screen 20 Supporting device 21 Rotating arm 22 Base 22b Lock projection 23 First support shaft (first fulcrum) Part)
24 Tip portions 24b, 24c, 24d Lock recess 25 Second support shaft (second fulcrum portion)
31 Guide portion 31b Lock groove 31c First positioning portion 31d Second positioning portion 40 Lock mechanism 42 Lock shaft 43 Lock urging member 44 Handle (I) Storage position (II) First use position (III) Second Use position

Claims (8)

A storage unit installed in the passenger compartment, a display unit having a screen, and a support device for stabilizing the display unit at at least three positions;
The three positions are a storage position in which the screen is stored in the storage portion provided on the back portion of the seat so that the screen cannot be seen from the outside, and the screen on the back portion of the seat that protrudes upward from the storage portion. A vehicle-mounted display device characterized by a first use position directed rearward and a second use position that moves laterally from the first use position and the screen is directed rearward.   The in-vehicle display device according to claim 1, wherein at the first use position, at least a part of the display unit is installed behind a headrest provided above a back portion of the seat.   3. The on-vehicle display device according to claim 1, wherein at the second use position, at least a part of the display unit is installed behind a space between the back portions of two seats arranged side by side.   The support device includes a lock mechanism that locks the display unit in at least the three positions. The lock mechanism includes a handle that unlocks the display unit, and holds the handle upward. The in-vehicle display device according to claim 1, wherein when lifted, the lock by the lock mechanism is released and the display unit is lifted upward.   The supporting device rotatably connects a rotating arm, a first fulcrum portion that rotatably supports a base portion of the rotating arm on a fixed side, a tip portion of the rotating arm, and the display unit. 5. The first fulcrum part and the second fulcrum part have respective rotation center axes oriented substantially parallel to each other. In-vehicle display device.   When the display unit is in the storage position, the first fulcrum part and the second fulcrum part are located on the left and right sides of a middle point that bisects the display unit. Item 6. A vehicle-mounted display device according to Item 5.   When the display unit is in the storage position, the first fulcrum part and the second fulcrum part are in positions separated on both upper and lower sides with a middle point that bisects the display unit vertically. Item 6. A vehicle-mounted display device according to Item 6.   The said 1st fulcrum part and said 2nd fulcrum part exist in the position which overlaps with the said display unit, without projecting from the circumference | surroundings of the said display unit, when the said display unit exists in the said storage position. The on-vehicle display device described.

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