MIRROR STRUCTURE OF A SIDE REAR VIEW MIRROR

ASSEMBLY FOR VEHICLES Technical Field [1] The present invention relates generally to side rear view mirror assembly for vehicles, and in particular, to mirror structure of a side rear view mirror assembly for vehicles that allows a driver or a passenger to have a wide field of view including not only the rear views from both sides, but also side views as well as ground views, whereby enhancing safety of driving. Background Art [2] Automotive side rear view mirror assemblies are reflectors that allow a driver to recognize moving cars or other objects from sides or rear while the driver drives watching forward, so that the driver's actions such as squeezing, overtaking, parking, etc. are eased and drive safety is enhanced through recognition of traffic situations at sides and at the rear. [3] Such a side rear view mirror assembly comprises housings 11 to be installed at both sides at front part of a car, and mirrors 12 to be installed rotatably in the housings 11 in a manner the mirrors 12 can direct to forward/backward and/or leftward/rightward from front openings of the housings 11, as shown in Fig.1. [4] Further, a mirror adjustment mechanism for control of the mirrors 12 rotating movements is installed in the housings 11, whereby the mirror adjustment mechanism can be classified by source of driving energy into a power drive type, a manual drive type, a combined drive type, etc. [5] In such a conventional side rear view mirror assembly, the mirrors 12 are designed to direct backward at both sides of a vehicle from front opening of the housings 11 by appropriately rotating to a direction that allows the driver to easily recognize his rear side or by appropriately pivoting the mirror assembly to the car body. [6] When mirrors 12 of the mirror assembly are thus adjusted to a certain angle, driver's field of rear view are strongly limited as angles of the mirrors 12 are fixed, whereby blind spots can be created in rear view of the driver and, as a result, driving safety can be impeded. [7] Another problem with mirrors 12 of a conventional side view mirror assembly is that, since such a mirror 12 is shaped near to a flat form such as a convex mirror with a curvature radius of 1200 mm or more with unitary magnification, this structure makes observation of cars or objects moving at sides in a relatively distant area or in cross roads difficult. [8] Still another problem with mirrors 12 of a conventional side rear view mirror assembly is that, since such a mirror 12 fails to provide a view of rear ground when a driver is parking backward, the driver has difficulty in recognizing an eventual obstacle on the ground or parking marks. Disclosure of Invention Technical Problem [9] The present invention, being conceived to solve the above problems, aims to provide mirror structure of a side rear view mirror assembly for vehicles that allows a driver or a passenger to have a wide field of view including not only the rear views from both sides, but also side views as well as ground views, whereby enhancing safety of driving. Technical Solution [10] In order to achieve the above objects, the present invention provides mirror structure of a side rear view mirror assembly comprising housings as well as mirrors that are rotatably installed at front openings of the housings, wherein each mirror consists of a first mirror part directing to rear side of the vehicle; a second mirror part combined to one side of the first mirror part with a prescribed angle of inclination directing to outer sides of the vehicle; and a third mirror part combined to the lower end of the first mirror part with a prescribed angle of inclination directing to the ground under the vehicle. [11] Preferably, the second mirror part is inclined by 3° to 10° from side of the first mirror part toward outer side of the vehicle, while the third mirror part is inclined by 3° to 10° from lower end of the first mirror part toward the ground under the vehicle. [12] Further, it is desirable that the second mirror part is combined with the third mirror part with an angle of about 45° in the front view. Advantageous Effects [13] The present invention has the effect of enhancing safety of driving by allowing a driver or a passenger to have a wide field of view including not only the rear views from both sides, but also side views as well as ground views, while the driver watches forward as he drives. Brief Description of the Drawings [14] Fig. 1 is a front view of a conventional mirror structure of a side rear view mirror assembly for vehicles. [15] Fig. 2 is a perspective view of mirror structure of a side rear view mirror assembly for vehicles in accordance with an embodiment of the present invention. [16] Fig. 3 is a plane cross-sectional view of the mirror structure in Fig. 2 along line III- III. [17] Fig. 4 is a side cross-sectional view of the mirror structure in Fig. 2 along line IV- IV. [18] [19] <Description of the Main Figures of the Drawings> [20] 20: Mirror Structure, 21 : First Mirror Part, [21] 22: Second Mirror Part, 23 : Third Mirror Part. Best Mode for Carrying Out the Invention [22] The preferred embodiments of the present invention are described below in detail making reference to the accompanying drawings. [23] Figs. 2 to 4 illustrate mirror structure of an outside rear view mirror assembly for vehicles in accordance with an embodiment of the present invention. [24] As shown in the drawings, the mirror structure 20 as per the present invention comprises a first mirror part 21, a second mirror part 22 combined to one side of the first mirror part with inclination directing to outer sides of the vehicle; and a third mirror part 23 combined to lower end of the first mirror part with inclination directing to the ground under the vehicle. [25] The first mirror part 21, being formed as a reflector with a unitary magnification rate or a convex mirror with a curvature radius of 1200 mm or more utilizing glass or transparent synthetic resin, one side of which material is coated to allow optical reflection through one side thereof, is installed directing to rear side of the vehicle, so that a rear view is provided to the driver. [26] The second mirror part 22 is combined to one side of the first mirror part 21 with a prescribed angle (a) of inclination directing to outer sides of the vehicle and made of a material same as or similar to that of the first mirror part 21. [27] By combining the second mirror part 22 inclining to outer side of the vehicle to one side of the first mirror part 21, a view for recognition of distant cars or other objects moving or staying at sides can be provided to the driver or the passenger. [28] The third mirror part 23 which is combined to lower end of the first mirror part 21 with a prescribed angle (b) of inclination directing to the ground under the vehicle, is made of a material same as or similar to that of the first mirror part 21. [29] By combining the third mirror part 23 to lower end of the first mirror part 21 with a prescribed angle of inclination to the ground, a view of the ground under the car can be provided to the driver or the passenger. [30] The second mirror part 22 is combined with the third mirror part 23 with an angle of about 45° in the front view as illustrated in Fig. 2. This combination structure of the second and the third mirror parts 22, 23 enables side views of the second mirror part 22 and ground views of the third mirror part 23 to appear naturally as continued, rather than separate and discontinued, and thus, enables an accurate observation of the traffic situations. [31] In addition, it is desirable that the combination boundaries between the mirror parts 21, 22, 23 (the imaginary lines in Fig. 2) undergoes a fine finishing process so that the boundaries are not easily recognized, but rather appear as natural curving of the mirror parts. [32] Preferably, the second mirror part 22 is combined to incline by 3° to 10° (a) from one side of the first mirror part 21 toward outer side of the vehicle, while the third mirror part 23 is combined to incline by 3° to 10° (b) from lower end of the first mirror part 21 toward the ground under the vehicle. [33] As described above, the present invention has the effect of enhancing safety of driving by allowing a driver or a passenger to have a wide field of view including not only the rear views from both sides, but also side views as well as ground views, while the driver watches forward as he drives. [34] Furthermore, the present invention provides an additional safety in backward parking by allowing a driver to easily view the ground under the car through the third mirror part 23. [35] Although the present invention has been described above with respect to the preferred embodiments, the scope of rights of the present invention is not limited thereto, but rather shall be determined by the appended claims and their equivalents, allowing various modifications, adaptations, etc. without departing the spirit of the invention, as those skilled in the art will understand.