Abstract:
A one-motor electric sunshade and sunroof structure may include glass sleds configured to open and close a sunroof glass by sliding in a front and rear direction along mechanism rails disposed at both sides of a roof panel for a vehicle, each having both ends to which a front sled and a rear sled are rotatably coupled, respectively, main cable devices which are connected with a drive motor by a cable, and movable along the mechanism rails, each having a cable protrusion that protrudes to be slidably accommodated in glass grooves formed in side surfaces of the front sled, the rear sled, and the glass sled, and sunshade sleds selectively coupled to the main cable devices and configured to open and close the sunshade by sliding, each having a first side at which a sunshade lever, which is selectively restricted with a corresponding mechanism rail, is mounted.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application claims priority to Korean Patent Application No. 10-2015-0068581, filed May 18, 2015, the entire contents of which is incorporated herein for all purposes by this reference. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to an electric sunshade and sunroof structure for a vehicle, and more particularly, to a one-motor electric sunshade and sunroof structure in which a sunshade and a sunroof glass may be opened or closed in a unified manner by using a one drive motor, thereby remarkably reducing production costs and a weight of a vehicle body, and greatly improving use convenience for a consumer. 
     Description of Related Art 
     An opening may be formed in a roof panel (ceiling portion) of a vehicle in order to discharge air in the vehicle to the outside or allow outside air to flow into the vehicle, and a sunroof glass is typically installed to be open-able and closeable in the opening. 
     That is, various types of frames including mechanism rails are installed on the roof panel, and the sunroof glass is vertically tilted up and down on the frame, or slides in a front and rear direction. 
     Recently, a panoramic sunroof, in which most of the roof panel is manufactured as the sunroof glass and a part of the roof panel is selectively opened and closed, is widely used for the purpose of providing clear openness and an excellent aesthetic appearance, and a driver may have a larger amount of sunlight through the panoramic sunroof. 
     Meanwhile, the sunroof glass is typically made of a transparent material, so that a direct beam is transmitted into the vehicle as it is, and thus, a sunshade is installed at a lower side of the sunroof glass so as to be slidable in the front and rear direction. 
     The sunshade is utilized for various purposes such as preventing a temperature in the vehicle from being increased in the summer, preventing the vehicle from being covered with frost in the winter, and preventing light blindness of a driver, and has a structure that may be opened and closed by a user as necessary at any time. 
     However, there is a problem in that the sunroof glass and the sunshade in the related art slide in the front and rear direction by two different drive motors, respectively, which causes increases in production costs for a vehicle and a weight of a vehicle body, and causes a head lining to have an excessive depth, so that headroom in the rear of the vehicle becomes poor. 
     In some cases, a method has been used of operating only the sunroof glass, between the sunroof glass and the sunshade in the related art, by using one drive motor, and sliding the sunshade manually, but this method also has a problem in that convenience of use for a consumer deteriorates. 
     Therefore, a need for a sunroof structure in which both of the sunroof glass and the sunshade are electrically operated by one drive motor has gradually increased in the art in order to reduce production costs and improve convenience for a user. 
     The information disclosed in this Background of the Invention section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. 
     BRIEF SUMMARY 
     Various aspects of the present invention are directed to providing a one-motor electric sunshade and sunroof structure in which both a sunroof glass and a sunshade may be operated by one drive motor, thereby remarkably reducing production costs for a vehicle and a weight of a vehicle body. 
     Various aspects of the present invention are additionally directed to providing a one-motor electric sunshade and sunroof structure in which both a sunroof glass and a sunshade are operable by electric power, thereby remarkably increasing convenience for a user and improving marketability of a vehicle. 
     According to various aspects of the present invention, a one-motor electric sunshade and sunroof structure may include glass sleds configured to open and close a sunroof glass by sliding in a front and rear direction along mechanism rails disposed at both sides of a roof panel for a vehicle, each having both ends to which a front sled and a rear sled are rotatably coupled, respectively, main cable devices which are connected with a drive motor by a cable, and movable along the mechanism rails, each having a cable protrusion that protrudes to be slidably accommodated in glass grooves formed in side surfaces of the front sled, the rear sled, and the glass sled, and sunshade sleds selectively coupled to the main cable devices and configured to open and close the sunshade by sliding, each having a first side at which a sunshade lever, which is selectively restricted with a corresponding mechanism rail, is mounted, in which the sunroof glass and the sunshade for the vehicle are opened and closed by a same drive motor. 
     The one-motor electric sunshade and sunroof structure may further include a tilt lever is disposed at a lower side of the sunroof glass to be rotatable in a vertical direction, and includes a tilt groove recessed in a side surface of the tilt lever, and a tilt protrusion portion protruding from and coupled to a first side of the glass sled, and slidably accommodated in the tilt groove, in which when the glass sled moves forward, the tilt lever moves upward by the sliding motion of the tilt protrusion portion and tilts up the sunroof glass. 
     The front sled may be hingedly coupled to a front end of the glass sled by a first hinge, the rear sled may be hingedly coupled to a rear end of the glass sled by a second hinge, and an end of each of the front sled and the rear sled may be formed with a downward bend. 
     In each mechanism rail, a front restricting groove may be formed recessed to correspond to a position where the end of the front sled is seated, and a rear restricting groove may be formed recessed to correspond to a position where the end of the rear sled is seated. 
     A cable groove, in which a sunshade protrusion which protrudes at an upper side of the sunshade lever is slidably accommodated, may be formed recessed at a lower side of the main cable device, and the sunshade protrusion may be configured to release the restriction between the mechanism rail and the sunshade lever by sliding along the cable groove by the movement of the main cable device. 
     A catching portion, which is recessed in a ‘U’ shape and allows the main cable device and the sunshade sled to move simultaneously with rotation of the sunshade lever, may be formed in the cable groove. 
     The catching portion may be formed at a central portion of the cable groove, and remaining portions of the cable groove other than the catching portion may be formed in a straight shape. 
     According to the present invention having the aforementioned configurations, all of the operations of tilting up and down the sunroof glass, opening and closing the sunroof glass, and opening and closing the sunshade may be carried out by utilizing one drive motor, and as a result, production costs for a vehicle and a weight of a vehicle body are remarkably reduced. 
     According to the present invention, one drive motor may be substituted for two drive motors that were used to electrically operate the sunroof glass and the sunshade in the related art, thereby remarkably reducing a thickness of a rear headroom. 
     According to the present invention, both of the sunroof glass and the sunshade may be opened and closed by a user&#39;s simple button manipulation, thereby remarkably improving convenience for a user, and improving marketability of a vehicle. 
     According to the present invention, the sunroof glass and the sunshade may be opened and closed by comparatively simple structures such as the glass sled, the main cable device, and the sunshade sled in a state in which unnecessary configurations in the related art are omitted, and as a result, the present invention is advantageous in terms of a package layout of a vehicle. 
     It is understood that the term “vehicle” or “vehicular” or other similar terms as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g., fuel derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, for example, both gasoline-powered and electric-powered vehicles. 
     The methods and apparatuses of the present invention have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated herein, and the following Detailed Description, which together serve to explain certain principles of the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates an exploded perspective view and an enlarged view illustrating a state in which respective components of a one-motor electric sunshade and sunroof structure according to the present invention are disassembled. 
         FIG. 2  is a perspective view illustrating an appearance of the one-motor electric sunshade and sunroof structure according to the present invention. 
         FIG. 3A  is an enlarged view of part A in  FIG. 2 . 
         FIG. 3B  is an enlarged view of part B in  FIG. 2 . 
         FIG. 3C  is an enlarged view of part C in  FIG. 2 . 
         FIG. 3D  is an enlarged view of part D in  FIG. 2 . 
         FIG. 4  is a side view of a front sled and a glass sled according to the present invention. 
         FIG. 5A  and  FIG. 5B  respectively illustrate a perspective view and a top plan view of a state in which a mechanism rail and a sunshade lever according to the present invention are restricted. 
         FIG. 6A  and  FIG. 6B  respectively illustrate a perspective view and a top plan view of a state in which the mechanism rail and the sunshade lever according to the present invention are released. 
         FIG. 7  is an exemplified view illustrating a state in which both a sunshade and a sunroof glass of the one-motor electric sunshade and sunroof structure according to the present invention are closed. 
         FIG. 8  is an exemplified view illustrating a state in which the sunroof glass of the one-motor electric sunshade and sunroof structure according to the present invention is tilted up. 
         FIG. 9  is an exemplified view illustrating a state in which the sunshade of the one-motor electric sunshade and sunroof structure according to the present invention is opened. 
         FIG. 10  is an exemplified view illustrating a state in which the sunroof glass of the one-motor electric sunshade and sunroof structure according to the present invention is opened. 
     
    
    
     It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that the present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is/are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims. 
       FIG. 1  illustrates an exploded perspective view and an enlarged view illustrating a state in which respective components of a one-motor electric sunshade and sunroof structure according to various embodiments of the present invention are disassembled,  FIG. 2  is a perspective view illustrating an appearance of the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention,  FIGS. 3A to 3D  are enlarged views of parts A, B, C, and D in  FIG. 2 , and  FIG. 4  is a side view of a front sled and a glass sled according to the various embodiments of the present invention. 
     As illustrated, the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention includes glass sleds  100  which are slidable along mechanism rails  400 , main cable devices  200  which are connected with a drive motor  440  by means of a cable, and sunshade sleds  300  which open and close a sunshade. 
     Specifically, the glass sled  100  is formed in a shape similar to a bar shape elongated in a front and rear direction of a vehicle along the mechanism rail  400 , and a glass groove  102  is recessed in a side surface of the glass sled  100  in a longitudinal direction of the glass sled  100 . 
     A front sled  110  is hingedly and rotatably coupled to a front end of the glass sled  100  by means of a first hinge ( 111  in  FIG. 4 ), and a rear sled  120  is hingedly and rotatably coupled to a rear end of the glass sled  100  by means of a second hinge ( 121  in  FIG. 2 ). 
     An end of the front sled  110  (a front end in the illustrated exemplary embodiments) is formed to be bent downward so that the front sled has an overall shape similar to an ‘L’ shape, and an end of the rear sled  120  (a rear end in the illustrated embodiments) is also formed to be bent downward so that the rear sled has an overall shape similar to an ‘L’ shape. 
     An end of the glass groove  102 , which is formed in a side surface of the front sled  110 , is also formed to be bent downward to correspond to the shape of the front sled, and an end of the glass groove  102 , which is formed in a side surface of the rear sled  120 , is also formed to be bent downward to correspond to the shape of the rear sled. 
     In the mechanism rail  400 , a front restricting groove  410  is formed to be recessed so as to correspond to a position where the end of the front sled  110  is seated, and a rear restricting groove  420  is formed to be recessed so as to correspond to a position where the end of the rear sled  120  is seated. 
     The front restricting groove  410  and the rear restricting groove  420  restrict the forward and rearward movement of the glass sled  100 , and serve to prevent a sunroof glass  101  from being moved in the front and rear direction when the sunroof glass is closed. 
     As illustrated in  FIG. 2 , a tilt lever  104  is mounted at a lateral side of the glass sled  100  in parallel with the glass sled, and the tilt lever  104  serves to tilt up or down the sunroof glass  101  by being rotated in a vertical direction at a lower side of the sunroof glass. 
     A tilt groove  105  is formed to be recessed in a side surface of the tilt lever  104  in a longitudinal direction of the tilt lever  104 , a tilt protrusion portion  103  protrudes from and is coupled to a side surface of the glass sled  100 , and the tilt protrusion portion  103  is slidably accommodated in the tilt groove  105 . 
     That is, when the glass sled  100  moves forward, the tilt protrusion portion  103  slides along the tilt groove  105 , and the tilt lever  104  is rotated upward by the sliding motion of the tilt protrusion portion  103 , thereby tilting up the sunroof glass  101 . 
     As illustrated in  FIGS. 3D and 4 , a cable protrusion  201 , which may be accommodated in the glass groove  102 , protrudes on a side surface of the main cable device  200  which is connected with the drive motor  440  by means of the cable and movable along the mechanism rail  400 . 
     The cable protrusion  201  serves to release the glass sled  100  by rotating the front sled  110  or the rear sled  120  while moving along the glass groove  102 , and to move the glass sled  100  in the front and rear direction. 
     That is, the front sled  110  is released from the mechanism rail  400  by being rotated upward by the forward movement of the main cable device  200 , and as the cable protrusion  201  moves further forward in a state in which the cable protrusion  201  is in contact with the front end of the glass groove  102 , the glass sled  100  is moved forward together with the cable protrusion  201 . 
     As the glass sled  100  moves forward, the tilt protrusion portion  103  also moves forward, and in this case, the tilt lever  104  is rotated upward. When the glass sled  100  moves rearward, the tilt protrusion portion  103  moves the tilt lever  104  rearward while also moving rearward, and in this case, the sunroof glass  101  is opened. 
       FIGS. 5A and 5B  illustrate a perspective view and a top plan view of a state in which the mechanism rail and a sunshade lever according to various embodiments of the present invention are restricted, and  FIGS. 6A and 6B  illustrate a perspective view and a top plan view of a state in which the mechanism rail and the sunshade lever according to various embodiments of the present invention are released. 
     As illustrated, a cable groove  210  in which a sunshade protrusion  311 , which protrudes at an upper side of the sunshade lever  310 , is slidably accommodated is formed to be recessed at a lower side of the main cable device  200 , and the sunshade lever  310  is selectively restricted with the mechanism rail  400 . 
     Specifically, the sunshade lever  310  is inserted into a trimmed portion  430  of the mechanism rail  400  at normal times (when the sunshade lever  310  is restricted) and prevents the sunshade sled  300  from being moved in the front and rear direction, thereby preventing a sunshade  301  from being moved in the front and rear direction. 
     As the main cable device  200  moves in the front and rear direction, the sunshade lever  310  is withdrawn from the trimmed portion  430  of the mechanism rail  400  by being rotated, and as a result, the sunshade sled  300  may also be moved in the front and rear direction. 
     As illustrated in  FIGS. 5A and 5B , a catching portion  211  having a ‘U’ shape is formed to be recessed in the cable groove  210 , and the catching portion  211  serves to allow the main cable device  200  and the sunshade sled  300  to move together simultaneously with the rotation of the sunshade lever. 
     That is, as the sunshade protrusion  311  slides along the cable groove  210  to the catching portion  211 , the sunshade lever  310  is rotated, and in this state, as the main cable device  200  moves in the front and rear direction, the sunshade sled  300  is also moved forward and rearward together with the main cable device  200 . 
     The catching portion  211  is formed at a center of the entire cable groove  210  and the remaining portions except for the catching portion are formed straight so that the cable groove  210  is formed in a shape similar to a ‘U’ shape, and a width of the cable groove  210  is equal to or relatively and slightly larger than a diameter of the sunshade protrusion  311 . 
     A process of operating the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention will be described below in detail. 
       FIG. 7  is an exemplified view illustrating a state in which both of the sunshade and the sunroof glass of the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention are closed. 
     As illustrated in  FIG. 7 , when the sunshade  301  and the sunroof glass  101  are closed, both of the front sled  110  and the rear sled  120  are restricted by the mechanism rail  400 , and the sunshade lever  310  is also kept restricted by the trimmed portion  430  of the mechanism rail. Therefore, both of the sunroof glass  101  and the sunshade  301  are prevented from being moved in the front and rear direction. 
       FIG. 8  is an exemplified view illustrating a state in which the sunroof glass of the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention is tilted up. 
     As illustrated, as the main cable device  200  moves forward, the front sled  110  and the rear sled  120  are released, and as the tilt protrusion portion  103 , which is coupled to a lateral side of the glass sled  100 , moves along the tilt groove  105 , the tilt lever  104  is rotated upward. Therefore, the sunroof glass  101  is tilted up by being rotated upward. 
       FIG. 9  is an exemplified view illustrating a state in which the sunshade of the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention is opened. 
     As illustrated in  FIG. 9 , as the main cable device  200  moves rearward after the sunroof glass  101  is tilted up, the sunshade protrusion  311  of the sunshade lever slides to the catching portion  211  of the cable groove, and as a result, the restriction between the mechanism rail  400  and the sunshade lever  310  is released. 
     As the main cable device  200  moves further rearward in a state in which the restriction between the mechanism rail  400  and the sunshade lever  310  is released, the main cable device  200  and the sunshade sled  300  are moved rearward together, and as a result, the sunshade  301  of the vehicle is opened. 
       FIG. 10  is an exemplified view illustrating a state in which the sunroof glass of the one-motor electric sunshade and sunroof structure according various embodiments of the present invention is opened. 
     As illustrated in  FIG. 10 , when the main cable device  200  is fully moved to the rear end of the rear sled  120 , the sunshade protrusion  311  is withdrawn from the catching portion  211 , the sunshade lever  310  is restricted by the mechanism rail  400  again, and the glass sled  100  moves rearward together with the main cable device  200 , so that the tilt protrusion portion  103  is also fully moved to the rear end of the tilt groove  105 . 
     In this state, when the main cable device  200  is still further moved rearward, the tilt lever  104  is also moved rearward together with the glass sled  100 , and the sunroof glass  101  is slowly moved rearward and then opened. 
     An operation of closing the sunroof glass  101  and the sunshade  301  may be implemented by reversely performing the aforementioned operating process, and in this case, a portion, which protrudes to be convex upward to correspond to the operations of opening and closing the sunroof glass, may be formed on the tilt groove  105 . 
     As described above, in the case of the one-motor electric sunshade and sunroof structure according to various embodiments of the present invention, both of the sunroof glass and the sunshade may be operated only by one drive motor, and as a result, production costs for a vehicle and a weight of a vehicle body are remarkably reduced. 
     For convenience in explanation and accurate definition in the appended claims, the terms “upper” or “lower”, “inner” or “outer” and etc. are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures. 
     The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present invention, as well as various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents.