The invention relates to a top-leaning electric reflection sheet device and, more particularly, a reflection sheet device used in a head-up display, which is provided to let the reflection sheet tightly lean on vehicle windshield to thereby improve stability of the reflection sheet, so that displayed images would not be shaken, to thereby enhance viewing quality.
The head-up display device is from the aviation technology originally. The head-up display device may directly project messages in front of the cockpit, and pilots may conveniently obtain desired messages without lowering head to check the messages on the instrument board, pilots can easily combine the messages displayed by the head-up display with the outside scene. Since the image reflected into eyes and the central axis of the aircraft is balanced, the height of pilots may not cause error on pitch angles or visual aim. Therefore, the purpose of the head-up display is that pilots may always keep the head-up posture without lowering head to check the messages displayed on the instrument board, to reduce ignoring the rapid change in the external environment during the interval between lowering head and heading-up, and avoid the delay and discomfort due to eyes focal length is adjusted continuously.
It is one of the biggest main reasons of car accidents that drivers' line of sight is away from the front road when driving. In order to reduce the frequency and duration that drivers' line of sight away from the front road, some car manufacturers equip this kind of head-up display inside the luxury cars, thus, the drivers know the information, such as car speed and engine speed, without moving line of sight away from the front windshield, to maintain traffic safety.
In general driving condition, the shortest time of moving the line of sight away from the front road for reading the information displayed on the instrument board is 0.5 second. For the condition of highway speed of 100 km per hour, the car travels 30 meters per second, and the risk is increased when there are a lot of cars on the road. For safety, the car manufacturers may equip the head-up display in some cars to reduce the distraction of drivers, and the head-up display is used as marking practices to attract consumers.
Recently, the technique of the head-up displays used in the cars is less complicated than the head-up displays equipped in aircrafts. It is one kind of optical system, and generally it is consisted of two main equipments, which are a projector and a combiner. The projector is consisted of signal light sources, projection lens and other optical components. The signal light source of the projector is consisted of LCD monitors or CRT equipments. Light is emitted from the signal light source and projected to the combiner on the glass (or a special transparent screen) by the projector, and the combiner displays words or images. In the recent years, there are many head-up displays for installation in car in the market. These head-up displays may simply display car speed and engine speed, now display water temperature, throttle position, fuel, over-speed warning, reverse image, battery voltage, and even combine the speed radar. Some products are stressed as quick installation, which are just connected to the car PC without using other cables. In the luxury cars of some car manufacturers, the information of the navigation system, front and rear vehicle distance is added into the information displayed by the head-up display, which is increased a lot of convenience for drivers. Besides, the external head-up displays in the market is various, and the prices are from several hundred dollars for simple function ones, to ten thousand dollars for good quality and versatile ones.
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In view of drawbacks of the prior art, the inventor finally completes top-keaning electric reflection sheet device of the present invention after numerous improvements, namely, the object of the present invention is to provide a top-leaning electric reflection sheet device for reducing shaking of the reflection sheet, to thereby enhance viewing quality of displayed images.
To achieve the above object according to the invention, the top-leaning electric reflection sheet device of the present invention, including:
a base;
a reflector stand, which includes a reflection sheet and a connecting portion, the connecting portion is connected to the reflection sheet;
a linkage seat, which includes a first shaft group and a second shaft group, a first torsion spring is set on the first shaft group, the first shaft group is pivoted on the connecting portion, a second torsion spring is set on the second shaft group, the first torsion spring and the second torsion spring are used to provide elasticity for the linkage seat to move upwards;
an electric module, which is pivoted the second shaft group, the electric module is provided to dolly move on the base to drive the linkage seat to move, and the bottom of the connecting portion is synchronously driven to dolly move.
The above electric module, a circuit board, a motor set and a gear set are set on it, the motor set is electrically connected to the circuit board, the reflector stand is driven by the gear set linked to the motor set for being closed or opened, and the rotation angle of the reflection sheet is provided to be adjusted.
The above base, two slide rails are respectively set on its two sides, a curved section is set on each slide rail, two guide components are respectively set on two sides of the electric module, the guide components are engaged with the slide rails.
The above base, a first lateral plate and a second lateral plate are respectively set on its two sides, two oblique walls are respectively set on the front side of the first lateral plate and the second lateral plate.
The above linkage seat, further includes a seat body, the first shaft group is set on the front side of the seat body, the second shaft group is set on the rear side of the seat body, a stopper is set on a side of the seat body, a guide arm is set on the bottom side of the seat body.
The base, a rack and pinion is set on its one side, a curved section is set on the rack and pinion, the electric module includes a gear set, the gear set is engaged between the rack and pinion and the connecting portion.
The above connecting portion includes a curved groove, the electric module includes a gear ser, the gear set includes a first gear, a second gear, a third gear, a fourth gear and a guide column, the guide column is set on a side of the first gear, the guide column is inserted into the curved groove, a rack and pinion is set on the first lateral plate of the base, the second gear and the fourth gear are coaxial and driven to rotate by the motor set, the second gear is engaged with the rack and pinion, the first gear is engaged with the third gear, the fourth gear is engaged with the third gear, the guide column is linked with the first gear, the guide column is provided to move along the curved groove to thereby limit the elasticity of the first torsion spring.
The above electric module, further includes a micro switch, the micro switch is set on the base, the micro switch is electrically connected to the electric module,
The above electric module further includes a button set, the button set is electrically connected to the electric module.
The above reflection sheet, a damping block is set on its top end for reducing shaking of the reflection sheet.
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a base 1, a first lateral plate 10A and a second lateral plate 10B are respectively set on its two sides;
a reflector stand 2, which includes a reflection sheet 21 and a connecting portion 22, the connecting portion 22 is connected to the reflection sheet 21;
a linkage seat 3, which includes a seat body 30, a first shaft group 31 and a second shaft group 32, a first torsion spring 311 is set on the first shaft group 31, the first shaft group 31 is set on the front side of the seat body 30 and is pivoted on the connecting portion 22, a second torsion spring 321 is set on the second shaft group 32, the second shaft group 32 is set on the rear side of the seat body 30, the first torsion spring 311 and the second torsion spring 321 are used to provide elasticity for the linkage seat 3 to move upwards;
an electric module 4, the first lateral plate 10A and the second lateral plate 10B are engaged with its two sides, the second shaft group 32 is pivoted the electric module 4, the electric module 4 is provided to dolly move on the base 1 to drive the linkage seat 3 to move and the bottom 222 of the connecting portion 22 is synchronously driven to dolly move.
The above electric module 4, a circuit board 41, a motor set 42 and a gear set 43 are set on it, the motor set 42 is electrically connected to the circuit board 41, the reflector stand 2 is driven by the gear set 43 linked to the motor set 42 for being closed or opened, and the rotation angle of the reflection sheet 21 is provided to be adjusted.
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The above electric module 4, further includes a button set 45, the button set 45 is electrically connected to the electric module 4, the button set is provided to control the motion of the electric module 4 for being opened ON or being close OFF, adjust the motor set 42 to slide forward or backward and drive the linkage seat 3 to adjust the rotation angle of the reflection sheet 21. Namely, the reflector stand 2 may be folded up when a user operate the button set for being close OFF, the reflector stand 2 may be opened to the previous flip angle.
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