AUTO-RETRACTABLE SIDEVIEW MIRROR ASSEMBLY FOR VEHICLES
Technical Field
The present invention relates generally to an auto-retractable sideview mirror assembly for vehicles, and more particularly, to an auto-retractable sideview mirror assembly for vehicles, which allows a sideview mirror to be automatically retracted into or extended from a mirror chamber of a vehicle's body as desired, thus accomplishing the original function of a sideview mirror by extending the sideview mirror from the mirror chamber when driving a vehicle, and ensuring sufficient space from structures around a vehicle by retracting the sideview mirror into the mirror chamber when parking the vehicle or passing through a narrow road, in order to prevent the sideview mirror from being broken by colliding with adjacent vehicles.
Background Art
Generally, a vehicle is provide with two sideview mirrors such that a driver easily looks right or left from the rear of the vehicle.
Since the sideview mirrors are projected out from both sides of the vehicle, the sideview mirrors may be broken by colliding with other vehicles or structures around a vehicle when passing a narrow road, such as a byway, or by vandalism. In order to solve the problem, in recent, there have been proposed automatically foldable sideview mirrors. That is, this sideview mirror is designed to be rotated by a motor mounted to an upper portion of a support part of the sideview mirror. When the sideview mirror is rotated by the motor, the sideview mirror is closely brought into contact with a vehicle's body while being folded only once.
Such a construction leads to the breakage of the sideview mirror by
vandals or structures around a vehicle to be considerably reduced, in comparison with the conventional fixed sideview mirrors. But, since this sideview mirror is still projected out from the vehicle's body, there always exists a danger of breakage of the sideview mirror.
Disclosure of the Invention
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an auto-retractable sideview mirror assembly for vehicles, which allows a sideview mirror to be automatically retracted into or extended from a mirror chamber of a vehicle's body as desired, thus preventing the sideview mirror from being damaged by completely retracting the sideview mirror into the mirror chamber, and accomplishing the original function of a sideview mirror by extending the sideview mirror from the mirror chamber as necessary.
Another object of the present invention is to provide an auto-retractable sideview mirror assembly for vehicles, which is capable of retracting the sideview mirror into the mirror chamber when there is no need for the sideview mirror, for example when driving a vehicle on an expressway, thus reducing air resistance and the fuel consumption in vehicles, as well as increasing fuel consumption ratio of vehicles and the speed of vehicles in the case of race cars or sports cars. In order to accomplish the above object, the present invention provides an auto-retractable sideview mirror assembly for vehicles, comprising a mirror chamber formed in a vehicle's body, a bushing hinged in the upper portion of the chamber in such a way as to swing up and down, a mirror body rotatably mounted to the bushing, a reversible motor rotating the bushing, a fixed gear mounted to the inside end of the bushing, and a shaft axially extending in the bushing while being fixed at its first end to the mirror body, with a bevel gear mounted to the second end of the shaft and engaging with the fixed gear in such a way that the shaft is rotated in conjunction with a swinging action of the bushing to rotate the mirror
body.
Brief Description of the Drawings
The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a view showing the construction and operation of an auto- retractable sideview mirror assembly for vehicles according to this invention;
Fig. 2 is a side view showing the operation of the auto-retractable sideview mirror assembly for vehicles of this invention; Fig. 3 is a sectional view of main parts for operating the auto-retractable sideview mirror assembly of this invention;
Fig. 4 is a view of a cover unit covering a mirror chamber when a mirror body is retracted into or extended from the mirror chamber; and
Figs. 5a and 5b are views showing the operation of a cover door.
Best Mode for Carrying; Out the Invention
Reference should now be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components.
Fig. 1 is a view showing the construction and operation of an auto- retractable sideview mirror assembly for vehicles according to this invention, Fig.
2 is a side view showing the operation of the auto-retractable sideview mirror assembly for vehicles of this invention, and Fig. 3 is a sectional view of main parts for operating the auto-retractable sideview mirror assembly of this invention.
As shown in the drawings, a sideview mirror assembly for vehicles includes a hinged bushing 12 swinging up and down, and a mirror body 20 rotatably mounted to the bushing 12.
The sideview mirror assembly may be installed on the outer wall of each of the front doors 30 corresponding to a driver's seat. Alternatively, the sideview mirror assembly may be installed on each side of the bonnet.
A mirror chamber 11 is formed in the outer wall of a vehicle's body 10 for receiving the mirror body 20, and exposed to the outside.
The bushing 12 is hinged in the upper portion of the chamber 11 in such a way as to swing up and down. A slave gear 13 is installed on the bushing 12 and engages with a master gear 15 mounted to the shaft of a reversible motor 14. By this structure, the bushing 12 has to extend the mirror body 20 to a predetermined position and to retract the mirror body 20 into the mirror chamber 11, so the rotation angle of the bushing 12 must be about 90°. Two position sensors 24a and 24b are installed at positions where they detect whether the mirror body 20 is completely extended from or retracted into the mirror chamber 11, and stop the swinging action of the bushing 12. The mirror body 20 is rotatably mounted to the bushing 12. Since the mirror body 20 has to rotate from the predetermined extension position to a position where it is in parallel with the side wall of the vehicle's body 10, the rotation angle of the mirror body 20 is approximately 90°.
A fixed gear 21 is mounted to the inside end of the bushing 12 hinged in the mirror chamber 11. A shaft 22 extends in the bushing 12 in the same direction as the rotation axis of the mirror body 20 rotatably mounted to the bushing 12. The shaft 22 is mounted at one end to a bevel gear 23 engaging with the fixed gear 21.
As the bushing 12 swings up and down, the shaft 22 is rotated by the bevel gear 23, thus allowing the mirror body 20 to be rotated.
At this time, the position sensors 24a and 24b, installed at positions where the rotation of the mirror body 20 is completed, detect whether the rotation of the mirror body 20 has stopped.
Meanwhile, since the interior of the mirror chamber 11 is exposed to the outside when the mirror body 20 is extended from or retracted into the mirror
chamber 11, it is poor in appearance. Furthermore, the corrosion of the sideview mirror assembly may be promoted, because external moisture or foreign materials may enter the opened mirror chamber 11. Thus, in order to avoid the problems, a cover unit is installed to the vehicle's body 10 for covering the mirror chamber 11 when the mirror body 20 is extended from or retracted into the mirror chamber 11.
Fig. 4 is a view of the cover unit covering a mirror chamber when the mirror body is retracted into or extended from the mirror chamber, and Figs. 5a and 5b are views showing the operation of a cover door.
The cover unit includes two opposite guide rails 31a and 31b horizontally installed on the vehicle's body at positions above and under the mirror chamber
11. A cover door 30 is slidably moved along the guide rails 31a and 31b. A door-operating unit horizontally moves the door 30 for opening or closing the door 30 as necessary.
The door-operating unit includes a rack 32 mounted to the edge of the cover door 30 such that the rack 32 extends in the moving direction of the door 30.
A pinion 33 engages with the rack 32 in such a way as to rectilinearly reciprocate the rack 32. A drive motor 34 rotates the pinion 32. Two position sensors 24c and 24d are installed at positions where the cover door 30 is completely opened and closed, and detect that the movement of the door 30 is stopped. Alternatively, a pneumatic cylinder actuator or a solenoid valve may be used as the door-operating unit.
The operation of the auto-retractable sideview mirror assembly for vehicles according to this invention will be described in the following.
When it is required to retract the mirror body 20 into the mirror chamber 11 for preventing the mirror body 20 from being broken by colliding with adjacent vehicles and structures when passing a narrow road, and ensuring enough space to pass the road, a driver pushes a control button (not shown). At this time, the drive motor 34 is rotated, so the pinion 33 makes the rack 32 move rearward, thus opening the cover door 30. When the position sensor 24d senses that the door 30 is opened, the
master gear 15 is rotated in a reverse direction while leading to the rotation of the slave gear 13, thus swinging the bushing 12 downward.
In the case where the bushing 12 swings downward, bevel gear 23 mounted in the bushing 12 is rotated around the fixed gear 21 as it engages therewith, thus rotating the mirror body 20 mounted to an end of the shaft 22 in conjunction with the swinging action of the bushing 12.
When the rotation of the bushing 12 is stopped, the mirror body 20 is completely retracted into the mirror chamber 11. Since the mirror chamber 11 receiving the mirror body 20 is designed to be parallel with the vehicle's body 10, there is no need for an excessively large space to receive the mirror body 20.
When the position sensor 24a senses that the mirror body 20 is completely retracted into the mirror chamber 11, the drive motor 34 is rotated in a reverse direction to move the rack 32 forward. As the rack 32 moves forward, the cover door 30 is closed, thus completely covering the mirror chamber 11. When the position sensor 24c senses that the cover door 30 is completely closed, the drive motor 34 is stopped. In this case, the mirror body 20 is completely hidden.
On the other hand, when it is required to extend the mirror body 20 from the mirror chamber 11, the driver pushes the control button in the same manner as that when retracting the mirror body 20 into the mirror chamber 11. When the control button is pushed, the driver motor 34 is operated to move the cover door 30 rearwards to be opened. After the cover door 30 is opened, the reversible motor 14 is rotated to move the bushing 12 upward.
In this case, the shaft 22 axially extending in the bushing 12 is rotated around the fixed gear 21, so the bushing 12 swings upward while the mirror body 20 mounted to the bushing 12 is rotated in such a way as to be perpendicular to the vehicle's body 10.
Thereafter, the drive motor 34 is rotated in a reverse direction for moving the door 30 forward to be closed. When the cover door 30 is closed, the drive motor 34 is stopped. Preferably, a cleaning unit may be provided in the mirror chamber 11 to
clean the glass of the mirror body 20 when it is extended from the mirror chamber 11. In such a way, the mirror body 20 can be kept clean, so the driver can easily observe the rear of the vehicle.
Industrial Applicability
As described above, the present invention provides an auto-retractable sideview mirror assembly for vehicles, which allows a sideview mirror to be automatically retracted into or extended from a mirror chamber of a vehicle's body as desired, thus preventing the sideview mirror from being damaged by completely retracting the sideview mirror into the mirror chamber, and accomplishing the original function of a sideview mirror by extending the sideview mirror from the mirror chamber when driving a vehicle, therefore being convenient as well as safe to use.
Further, the auto-retractable sideview mirror assembly for vehicles is provided with a cover door automatically covering the mirror chamber when the mirror body is completely retracted into or extended from the mirror chamber, thus preventing the sideview mirror from being rapidly corroded by external moisture or foreign materials.
The present invention is to provide an auto-retractable sideview mirror assembly for vehicles, which allows the sideview mirror to be retracted into the mirror chamber when there is no need to use the sideview mirror, for example when driving a vehicle on an expressway, thus reducing air resistance and fuel consumption in vehicles, as well as increasing the fuel consumption ratio of vehicles and the speed of vehicles in the case of race cars and sports cars.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.