Patent Application
20100284100
1. Field of the Invention
The present invention relates to an adjusting device for a reflecting mirror, so as to adjust an angle of the reflecting mirror.
2. Description of the Related Art
A conventional reflecting mirror can be applied to a vehicle lamp. In order to adjust an angle of the conventional reflecting mirror to achieve an effect of a headlight on full beam or a dipped headlight, a driving device is provided in the reflecting mirror. Referring to Patent Publication No. WO2008/127203A1, a gear and a driving gear disposed around a reflecting mirror are used to drive the entire reflecting mirror, so as to adjust an angle of the reflecting mirror.
Further referring to Patent Publication No. WO2006/025804A1, a plurality of gears and a driving device are used to drive an entire reflecting mirror, so as to adjust an angle of the reflecting mirror. In this patent, the components of the driving device are complex, easily damaged, and difficult to repair.
Therefore, there is need for providing an adjusting device for a reflecting mirror to solve the above problems.
Accordingly, the present invention is directed to an adjusting device for a reflecting mirror, which includes a driving device, a first linkage device, a second linkage device, a shifting device, and a limiting device. The driving device receives a driving force so as to be actuated. The first linkage device is connected to the driving device, so as to be driven to rotate by the driving device. The second linkage device is connected to the first linkage device, so as to be driven to rotate by the first linkage device. The shifting device is connected to the second linkage device, so as to be driven by the second linkage device to move. The limiting device is disposed on the reflecting mirror and connected to the shifting device, such that the shifting device relatively moves on the limiting device, so as to adjust an angle of the reflecting mirror.
The driving device, the first linkage device, the second linkage device, the shifting device, and the limiting device of the reflecting mirror provided by the present invention can be used to adjust an angle of the reflecting mirror. Further, the driving device, the first linkage device, the second linkage device, the shifting device, and the limiting device of the reflecting mirror provided by the present invention are simple in structure and easy to assemble, thereby lowering the total manufacturing cost of the adjusting device for the reflecting mirror of the present invention, reducing damage to the components so as to prolong service life.
The first linkage device 30 is connected to the driving device 20, so as to be driven to rotate by the driving device 20. In this embodiment, the first linkage device 30 is a first linkage rod, having a second gear 31 and a third gear 32 respectively disposed on two ends of the first linkage rod. The first linkage device 30 and the driving device 20 are perpendicularly disposed, and the second gear 31 is engaged with the first gear 22, so that the driving device 20 drives the first linkage device 30 to rotate.
The second linkage device 40 is connected to the first linkage device 30, so as to be driven to rotate by the first linkage device 30. In this embodiment, the second linkage device 40 is a second linkage rod, having a fourth gear 41 and a plurality of screw threads 42. The fourth gear 41 is disposed on the center of the second linkage rod, the screw threads 42 are disposed on two sides of the second linkage rod 40, and the fourth gear 41 is engaged with the third gear 32, so that the first linkage device 30 drives the second linkage device 40 to rotate.
The shifting device 50 is connected to the second linkage device 40, so as to be driven to move by the second linkage device 40. In this embodiment, the shifting device 50 has two snap rings 51, 52 and a cross rod 53. The two snap rings 51 and 52 are disposed on two ends of the shifting device 50, the cross rod 53 is connected to the two snap rings 51 and 52, and a plurality of screw threads 511 and 521 is formed on inner sides of the two snap rings 51 and 52 so as to be engaged with the screw threads 42 on the two sides of the second linkage device 40, such that the second linkage device 40 rotates to drive the shifting device 50 to move.
The limiting device 61 is disposed on the reflecting mirror 60, and is connected to the shifting device 50, such that the shifting device 50 relatively moves on the limiting device 61, so as to adjust an angle of the reflecting mirror 60.
In this embodiment, the cross rod 53 has a recess, and the limiting device 61 is a limiting board accommodated in the recess, such that the shifting device 50 relatively moves on the limiting board. In addition, a contact surface of the limiting board to the recess is a camber 611, and different cambers may be designed to match with the adjusted angle of the reflecting mirror 60.
In other applications, the cross rod has a protruding portion, and the limiting device is a limiting recess for accommodating the protruding portion so that the shifting device relatively moves on the limiting recess. In addition, a contact surface of the limiting recess to the protruding portion is a camber, and different cambers may be designed to match with the adjusted angle of the reflecting mirror.
Preferably, in this embodiment, the two snap rings 51 and 52 are C-shaped snap rings. When the shifting device 50 moves to a limit position of two sides, if the knob 21 of the driving device 20 continues to rotate and drive the first linkage device 30 and the second linkage device 40 to rotate, the two C-shaped snap rings 51 and 52 are slightly enlarged so as to prevent the screw threads 42 of the second linkage device 40 and the screw threads 511 and 521 formed on the inner sides of the two C-shaped snap ring 51 and 52 from being damaged.
Referring to
In addition, the reflecting mirror 60 further includes at least one snapping member 63, disposed in at least one snapping slot 72, 73 of the case 70. The size of the snapping slot 72 is larger than that of the snapping member 63, so that the reflecting mirror 60 has a marginal space for adjusting its upper and lower angles.
In this embodiment, the adjusting device 10 for the reflecting mirror provided by the present invention may be applied to a vehicle lamp. When the angle of the reflecting mirror 60 is slightly adjusted upwards, the light rays are irradiated to farther places so that the lamp functions as a headlight on full beam. When the angle of the reflecting mirror 60 is slightly adjusted downwards, the light rays are irradiated to nearer places so that the lamp functions as a dipped headlight.
The driving device 20, the first linkage device 30, the second linkage device 40, the shifting device 50, and the limiting device 61 of the reflecting mirror 60 provided by the present invention can be used to adjust an angle of the reflecting mirror 60. Further, the driving device 20, the first linkage device 30, the second linkage device 40, the shifting device 50, and the limiting device 61 of the reflecting mirror 60 provided by the present invention are simple in structure and easy to assemble, thereby lowering the total manufacturing cost of the adjusting device for the reflecting mirror of the present invention, and reducing damage to the components so as to prolong service life.
While the embodiments of the present invention have been illustrated and described, various modifications and improvements can be made by those skilled in the art. The embodiments of the present invention are therefore described in an illustrative but not restrictive sense. It is intended that the present invention may not be limited to the particular forms as illustrated, and that all modifications that maintain the spirit and scope of the present invention are within the scope as defined in the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 098115591 | May 2009 | TW | national |
