JPH0683494U - In-vehicle display device - Google Patents

Abstract

(57) [Summary] [Purpose] In a vehicle-mounted display device in which the display member automatically protrudes from the case, the display member is forcibly pulled out when the drive source of the drive mechanism for protruding the display member is in the non-operating state. The display member that can be pulled out can be displayed. [Configuration] Usually, a drive mechanism provided inside the fixed case 20 advances the intermediate case 30 to project the display member 50, and the display member 50 is further rotated in a standing posture. The drive mechanism is composed of a motor and a power transmission section that is only a combination of spur gears. Therefore, when the motor is in a non-operating state, it is possible to forcibly pull out by putting a finger on the hooking claw 81a of the decorative cover 81 and further pulling it out.
It is possible to forcibly rotate 0 to the standing posture.
When the detection unit detects that the display member 50 has moved to a predetermined position, the display member 50 is energized and the screen is turned on.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle-mounted display device in which a display member such as a TV monitor automatically protrudes from a case and then its display surface is turned toward a passenger. The present invention relates to an in-vehicle display device that enables a forced movement of a display material and a display operation even when the display does not come out automatically.

[0002]

[Prior art]

 Recently, a vehicle-mounted display device having the structure shown in FIG. 10 has been put into practical use. In this on-vehicle display device, a display member 3 such as a liquid crystal television monitor is housed in a case 2 embedded in a console panel 1 or the like in the vehicle. A drive mechanism using a motor as a power source is provided in the case 2, and the drive mechanism is started by a predetermined operation. Due to the driving force transmitted by this driving mechanism, the display member 3 automatically protrudes from the case 2 in the A1 direction in the horizontal posture, and then the display member 3 further extends to the position (a) shown by the chain line. The display surface 3a of the display member 3 is turned to an angle (b) indicated by (2), and is oriented in a direction that is easily seen by passengers inside the vehicle. When the storage operation button is pressed, the motor in the drive mechanism rotates in the reverse direction, the display member 3 in the rising posture (b) is returned to the horizontal posture shown in (a), and the horizontal posture is continuously maintained. The display member 3 moves in the A2 direction and is returned into the case 2.

[0003]

[Problems to be solved by the device]

 In this type of in-vehicle display device, when the power button is provided in the case and the operation button is pressed while the display member 3 is housed in the case 2, the motor of the drive mechanism is pressed. The display member 3 is started to project and move at this time, and at this time, the display member 3 is energized from the power source, and the display surface 3a such as a liquid crystal of the display member 3 is lit at the same time when the motor is started.

Therefore, if the power supply unit fails or the energizing path to the motor fails while the display member 3 is housed in the case 2, the motor of the drive mechanism cannot operate. In addition, it becomes impossible to energize the display member 3. In addition, in this type of device, since a power transmission mechanism such as a worm gear is used for the drive mechanism, the drive load from the driven side is large, so that the display member 3 is displayed in a state where the motor of the drive mechanism does not operate. It is impossible to forcibly pull it out by hand.

The present invention is to solve the above-mentioned conventional problems, and allows the display member to be forcibly pulled out from the case even when the motor of the drive mechanism or the like has malfunctioned, and when it is further pulled out. The purpose is to provide an in-vehicle display device capable of energizing the display member.

[0006]

[Means for Solving the Problems]

 The in-vehicle display device according to the present invention has a display member supported so as to be linearly movable in and out of the case and rotatable in a direction in which the direction of the display surface is changed outside the case, and at least the display member is linearly movable. And a drive mechanism that allows the display member to move forcibly when the power source is in a non-operating state. It is characterized by the fact that it is equipped with a detection unit that detects the state of linear movement to the outside of the case to a prescribed position or the state of rotating it to a prescribed angle, and the detection output makes it possible to energize the display member. is there.

[0007]

[Action]

 In the above means, the display member is usually linearly moved inside the case by the power of the drive source such as the motor of the drive mechanism, and the display member is rotationally driven outside the case as necessary. Further, when the display member is forcibly pulled out by hand when the above-mentioned motor or the like is in a non-operating state, the power transmission section of the drive mechanism can tolerate this forcing force. Further, when the detection unit detects that the display member is forcibly pulled out to a predetermined position, the detection output enables energization of the display member. Therefore, when the switch of the display member that is forcibly pulled out is pressed, the display member enters the display state, or the display output is automatically energized by the detection output to switch to the display state.

[0008]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings. 1 and 2 are cross-sectional views showing a state in which the in-vehicle display device is assembled for each operation, FIG. 3 is a perspective view showing a moving bracket 40 that supports a display member such as a television monitor, and FIG. 4 shows an intermediate case 30. FIG. 5 is a perspective view showing a fixed case 20 that houses the intermediate case, the moving bracket, and the display member. Further, FIG. 9 is an external perspective view of the entire apparatus. As shown in FIGS. 1 and 2, this vehicle-mounted device has an intermediate case 30 housed in a fixed case 20 attached to a console panel in a vehicle compartment so as to be movable in the A1-A2 direction. A moving bracket 40 is provided in the unit 30 so as to be movable in the A1-A2 direction, and a display member 50 such as a television monitor is supported by the moving bracket 40. In the state of FIG. 1, the display member 50 is housed in the fixed case 20 and the intermediate case 30 in a horizontal posture. Further, as shown in FIG. 2, the display member 50 is rotated in the standing posture while being projected from the fixed case 20.

As shown in FIG. 3, in the moving bracket 40, a rotating shaft 41 is rotatably supported between both leg portions 40a, 40a, and both end portions 41a, 41a thereof are outwardly of the leg portions 40a, 40a. It is protruding. Large gears 42, 42 are fixed to both sides of the rotary shaft 41, and a small gear 43 is fixed inside one of the large gears 42. A drive mechanism 60 is mounted on the moving bracket 40, and its power is transmitted to the small gear 43. Guide pins 44, 44 projecting outward are provided at the ends of the leg portions 40a, 40a, and the side surfaces 50a of the display member 50 are supported by the support portions 44a, 44a at the inner ends of the guide pins 44, 44. Rotating bearings 50b, 50b provided on 50a are rotatably supported. Link members 51 and 51 are rotatably attached to both side surfaces 50a and 50a of the display member 50 via a shaft 51a. Guide pins 52 and 53 are fixed to each link member 51.

FIG. 6 shows the structure of the drive mechanism 60, and is an enlarged side view taken along arrow VI in FIG. The drive mechanism 60 is for moving the moving bracket 40 and the intermediate case 30 in the A1-A2 direction, and further for rotating the display member 50 in the standing posture shown in FIG. The drive mechanism 60 includes a gear case 61 bent by a sheet metal into a U-shape, and a motor M fixed to the gear case 61. A mounting piece 61c is bent and formed on one side plate 61b of the gear case 61, and female screw holes 61d and 61d are formed in the mounting piece 61c. As shown in FIG. 3, mounting holes 40b and 40b are formed in the moving bracket 40, and fixing screws inserted into the mounting holes 40b and 40b are screwed into the female screw holes 61d and 61d, respectively. 61 is fixed to the moving bracket 40.

A power transmission unit is provided in the gear case 61. In this power transmission unit, the pinion gear 62 is provided on the output shaft Ma of the motor M. The pinion gear 62 meshes with a spur gear 63a, and rotational power is transmitted from the spur gear 63b, which is integral with the spur gear 63a, to the spur gear 64. As shown in FIG. 7, a spur spur gear 65 is pressed against the spur gear 64 by a spring 67. Further, the spur gear 65 meshes with the spur gear 66a, and the output spur gear 66b integral with the spur gear 66a meshes with the pinion gear 43 shown in FIG. In the power transmission section, all power transmission paths from the pinion gear 62 to the output spur gear 66b are meshes of spur gears, and the rotational power of the motor M 1 is decelerated and transmitted from the output spur gear 66b to the pinion 43. The slip mechanism of the spur gears 64 and 65 shown in FIG. 7 is a safety mechanism when the motor M is in a driving state. Spur gears 64 and 65 are prevented from slipping and an excessive load acting on the motor M when the member 50 is pressed by hand.

Further, as described above, since all the power transmission parts are formed by meshing of spur gears, the rotating shaft 41 is forcibly forced by, for example, pulling the display member 50 while the motor M is not energized. Although the output spur gear 66b can be forcibly rotated via the pinion gear 43, the output spur gear 66b can be forcedly rotated through the pinion gear 43 although there is some resistance force due to the reduction gear ratio when the gear is turned to. A detection unit 70 is mounted on the moving bracket 40. The detection unit 70 has a substrate 71 fixed to the moving bracket 40, on which an optical sensor 72 and a limit switch 73 are mounted. The optical sensor 72 is a photocoupler, and is composed of a light emitting element and a light receiving element that detects the light emitted from this light emitting element and reflected and returned, and detects the moving position of the moving bracket 40. The limit switch 73 is for detecting the movement limit position of the movement bracket 40 in the A2 direction.

As shown in FIG. 4, the intermediate case 30 houses the moving bracket 40 therein. The intermediate case 30 is made of sheet metal, and two rollers 35, 35 are rotatably attached to the outer surfaces of both side plates 30a, 30a. Guide grooves 31, 32, 33 are formed in each side plate 30a made of sheet metal. A front end portion of the guide groove 31 is an arc portion 31a, and a click member 37 is provided below the arc portion 31a.

As shown in FIGS. 1 and 2, the guide pin 53 protruding from the link member 51 supported by the display member 50 is slidably supported in the guide groove 33, and also protrudes from the link member 51. The guide pin 52 is slidably supported in the guide groove 32. Further, both ends 41a of the rotary shaft 41 protruding from the leg portion 40a of the moving bracket 40 and the guide pin 44 are slidably supported in the same guide groove 31. The click member 37 is biased upward by a spring, and when the guide pin 44 moves to the circular arc portion 31a of the guide groove 31, the guide pin 44 comes into contact with one of the grooves 37a, 37b, 37c of the click member 37. When the display member 50 is fitted, the rotational posture of the display member 50 is determined. Further, as shown in FIG. 4, bent pieces 30b, 30b are formed inwardly in the drawing at the lower ends of both side plates 30a, 30a of the intermediate case 30, and rack members 36, 36 are fixed to the upper surfaces thereof.

As shown in FIG. 8, reflective sheets 75 and 76 a, 76 b, 76 c are attached to the inner surface of one side plate 30 a of the intermediate case 30. When the moving bracket 40 moves in the intermediate case 30 in the A1 direction, the optical sensor 72 of the detection unit 70 scans the inner surface of the side plate 30a along a line indicated by OP. And 76a, 76b, 76c are located on this scan line. When the moving bracket 40 moves in the A1 direction, the optical sensor 72 first detects the reflected light from the reflecting sheet 75 having a predetermined length, and after the detection output disappears, the reflecting sheets 76a, 76b. , 76c, the reflected light from each of them is sequentially detected. When the reflected light from any of the reflection sheets 76a, 76b or 76c is detected, the guide pin 44 fits into any of the grooves 37a, 37b, 37c of the click member 37.

During normal operation when the motor M of the drive mechanism 60 is energized, the stop timing of the motor M is controlled by the detection output of the optical sensor 72. That is, when the optical sensor 72 detects the reflected light from any of the reflection sheets 76a, 76b or 76c, the motor M is stopped to set the display member 50 to one of the three rising postures. Further, in this embodiment, when the motor M is in the non-energized state, it is possible to manually pull out the display member 50 and further rotate the display member 50 to the upright posture. When the reflected light from the reflective sheet 75 is once detected by 72 and the detection output disappears, or when the reflected light from the reflective sheet 76a is detected thereafter, the display member 50 is automatically energized to display the screen. Start. Alternatively, the display member 50 can be energized by the above detection output, and the screen can be displayed by pressing the power switch of the display member 50 in the standing posture.

As shown in FIG. 2, when the intermediate case 30 moves in the A1 direction, the front ends of the side plates 30 a, 30 a thereof protrude forward of the fixed case 20. Therefore, a synthetic resin decorative cover 81 is attached to the outer surfaces of the protruding portions of the side plates 30a, 30a, and the decorative covers 81, 81 are fixed to the side plates 30a, 30a by means such as screwing or adhesion. . Hooking claws 81a and 81a protruding outward are formed at the front ends of the both decorative covers 81 and 81. The latching claws 81a, 81a are slightly larger, and when the motor M is in a non-operating state, the latching claws 81a, 81a can be forcibly pulled out by putting a finger on the latching claws 81a, 81a. .

The fixed case 20 shown in FIG. 5 is located at the outermost part of the vehicle-mounted device, and the intermediate case 30 is housed inside the fixed case 20. A nose 23 is attached to the front of the fixed case 20. As shown in the external perspective view of FIG. 9, the hooks 81a, 81a of the makeup cover 81 provided on the intermediate case 30 are in a state of protruding laterally in front of the nose 23. Rails 21, 21 having a U-shaped cross section are provided on the inner surfaces of both side plates 20a, 20a of the fixed case 20, and the rollers 35 provided on the outer surfaces of the side plates 30a, 30a of the intermediate case 30 are the rails. By rolling inside 21, 21, the intermediate case 30 can be moved in the fixed case 20 in the A1-A2 direction.

A pair of rack members 24, 24 is provided on the inner surface of the bottom portion 20 c of the fixed case 20. As shown in FIG. 4, cutouts 30d and 30d are formed on both sides of the bottom portion 30c of the intermediate case 30, and the rack members 24 and 24 are located in the cutouts 30d and 30d. It is located inside the provided rack members 36, 36. The large gears 42, 42 shown in FIG. 3 are adapted to selectively mesh with the rack members 24, 36, respectively.

Next, the operation of the in-vehicle device in the normal state will be described. In the storage state shown in FIG. 1, both the intermediate case 30 and the moving bracket 40 are moved in the A2 direction, and both are stored in the fixed case 20. At this time, as shown in FIG. 8, the limit switch 73 provided on the moving bracket 40 hits the inner surface of the rear end of the intermediate case 30, and the moving bracket 40 is housed in the intermediate case 30 by the limit switch 73. Is detected. When an operation switch (not shown) is operated in this state, the motor M of the drive mechanism 60 is driven. The power of the motor M is transmitted from the output spur gear 66b to the small gear 43 via the power transmission portion shown in FIG. 6, and the rotating shaft 41 is rotationally driven. The large gears 42, 42 fixed to the rotating shaft 41 mesh with the rack members 24, 24 provided on the fixed case 20 to roll, and the driving force causes the intermediate case 30 and the moving bracket 40 to move. Move forward in the A1 direction together.

When the intermediate case 30 and the moving bracket 40 advance to the position shown by (a) in FIG. 2, the intermediate case 30 stops at that position. After the intermediate case 30 reaches the position (a), when the large gears 42, 42 are continuously driven by the motor M, the large gears 42, 42 are removed from the rack members 24, 24 on the fixed case 20. The movable bracket 40 independently advances in the intermediate case 30 in the A1 direction until it comes into mesh with the rack members 36, 36 on the disengagement intermediate case 30.

While the moving bracket 40 is advancing in the A1 direction, the guide pin 52 provided on the link member 51 contacts the groove tip of the guide groove 32 formed in the intermediate case 30, and the guide pin 52 is further moved. It becomes impossible to move forward in the A1 direction. When the moving bracket 40 is further advanced in the A1 direction by the power of the motor M, the guide pin 44, which is a common axis between the display member 50 and the moving bracket 40, advances in the guide groove 31 of the intermediate case 30. The guide pin 53 also advances in the A 1 direction along the guide groove 33. As a result, the link member 51 rotates counterclockwise about the guide pin 52 as a fulcrum, and the display member 50 rotates counterclockwise about the guide pin 44 as a fulcrum and is raised to the angle shown in FIG. However, the rising angle of the display member 50 can be controlled, and when the optical sensor 72 detects any one of the reflection sheets 76a, 76b, and 76c shown in FIG. 8, a command is given to stop the motor M. By setting, the rotation of the display member 50 is stopped when the guide pin 44 is fitted into any of the grooves 37a, 37b, 37c of the click member 37, and thereby the rising angle of the display member 50 is set.

Next, a case where the motor M of the drive mechanism 60 does not start due to a failure of the motor drive circuit or the energization path will be described. Since the hooks 81a, 81a at the tips of the decorative covers 81, 81 provided on the intermediate case 30 project laterally in front of the nose 23, touch the hooks 81a, 81a with your fingers. By pulling out, the intermediate case 30 can be pulled out from the inside of the fixed case 20 in the A 1 direction. That is, the power transmission portion of the drive mechanism 60 shown in FIG. 6 is a mesh of spur gears from the pinion gear 62 to the output spur gear 66b, and further to the meshing of the output spur gear 66b and the small gear 43. When the case 30 is forcibly pulled out manually, the large gear 42 tries to roll on the rack member 24 provided in the fixed case 20, but in the power transmission portion of the spur gear meshing, The small gear 43 is allowed to rotate with some load. Therefore, although there is some resistance, the intermediate case 30 can be forcibly pulled out.

After pulling out the intermediate case 30 to the final position shown by the solid line in FIG. 9, the display member 50 in the horizontal posture is held by hand and further pulled forward. At this time, the moving bracket 40 supporting the display member 50 is pulled in the A1 direction, and at this time, the large gear 42 rolls on the rack member 36 in the intermediate case 30. After the guide pin 52 hits the groove tip of the guide groove 32, when the horizontal display member 50 is forcibly rotated upward, the guide pin 44 advances along the guide groove 31, and 53 moves forward along the guide groove 33, and the display member 50 can be forcibly rotated to the standing posture.

When the display member 50 is forcibly moved, the optical sensor 72 is brought into an operable state based on, for example, the detection output of the limit switch 73. Therefore, the optical sensor 72 provided on the moving bracket 40 can detect the reflected light from the reflection sheet 75 shown in FIG. 8 while the display member 50 is being rotated to the upright posture. When the optical sensor 72 moves to the end of the reflection sheet 75 in the A1 direction and no reflected light reception output is obtained, or when the optical sensor 72 receives the reflected light from the next reflection sheet 76a, the display member is displayed. 50 is automatically energized and the display screen such as liquid crystal is automatically turned on. Alternatively, the detection output from the optical sensor 72 allows the display member 50 to be energized. As a result, the screen of the display member 50 can be displayed by pressing the power switch of the display member 50.

The rising posture of the display member 50 is determined when the guide pin 44 is fitted into any of the grooves 37a, 37b, 37c of the click member 37, and a television image or the like can be viewed in this state. become. Further, when returning the display member 50, the display member 50 is forcibly turned to the horizontal posture from the standing posture shown in FIG. 2, and then the display member 50 is pushed into the fixed case 20. At this time, when the optical sensor 72 completes the detection of the reflection sheet 76a or detects the edge of the reflection sheet 75, the power supply to the display member 50 is cut off.

In the above embodiment, the display member 50 is projected in the horizontal posture and further rotated in the rising direction by the one drive mechanism 60. However, the display member 50 is moved in the A1-A2 direction. A drive mechanism for moving and a drive mechanism for raising and rotating the protruding display member are separately provided, and by using a spur gear group in each drive mechanism, forcible movement is allowed. May be. Alternatively, a drive mechanism that only moves the display member in the A1-A2 direction may be provided, and the display member may be manually started regardless of the drive mechanism. Further, the display member is not limited to be rotated in the rising direction, but may be rotated in the falling direction. The display member 50 protruding from the fixed case 20 is not limited to the television monitor, and may be another display member such as an LED or electroluminescence.

[0028]

[Effect of device]

 As described above, according to the present invention, even when the drive source such as the motor of the drive mechanism is in a non-operating state, the display member can be manually forcibly moved to the display posture and is pulled out. Since it is possible to energize the display member, it becomes possible to perform the display operation of the display member even when the motor or the like does not operate.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a vehicle-mounted display device in which a display member is stored.

FIG. 2 is a cross-sectional view of the vehicle-mounted display device in a state in which a display member protrudes and rotates in a rising direction.

FIG. 3 is a perspective view showing a part of a display member and a moving bracket.

FIG. 4 is a perspective view showing an intermediate case.

FIG. 5 is a perspective view showing a fixed case.

6 is a side view showing a drive mechanism and is an enlarged side view taken along the line VI of FIG.

FIG. 7 is an exploded perspective view showing a part of a drive mechanism.

FIG. 8 is a perspective view showing an inner surface of one side plate of the intermediate case.

FIG. 9 is an external perspective view of a vehicle-mounted display device.

FIG. 10 is a perspective view showing a conventional in-vehicle display device.

[Explanation of symbols]

 20 Fixed Case 24 Rack Member 30 Intermediate Case 31, 32, 33 Guide Groove 36 Rack Member 40 Moving Bracket 41 Rotating Shaft 41a Rotating Shaft End 42 Large Gear 44 Guide Pin 50 Display Member 51 Link Member 52, 53 Guide Pin 60 Drive Mechanism M Motor 70 Detecting Section 72 Optical Sensors 75, 76a, 76b, 76c Reflective Sheet 81 Decorative Cover 81a Hooking Claw

Claims (1)

[Scope of utility model registration request] 1. A display member supported so as to be linearly movable in and out of the case and rotatable in a direction in which the direction of the display surface is changed outside the case, and a drive mechanism for linearly moving the display member. The drive mechanism is provided with a power source and a power transmission unit that allows the display member to be forcibly moved when the power source is in a non-operating state.
A detection unit is provided which detects a state where the display member is linearly moved to a predetermined position outside the case or a state where the display member is rotated by a predetermined angle, and a detection unit is provided which enables the display member to be energized by the detection output. In-vehicle display device.