WINDOW GLASS GUIDE SYSTEM FOR VEHICLE

Abstract: A window glass guide system for a vehicle, wherein a top slide member (16), a bottom slide member (18) and a third slide member (19), which are protruded into a compart­ ment (14), are secured to the top, the bottom of one end edge (12B) and the top of the other end dege (12C) in the longitudinal direction of a door glass (12), respectively, and the top slide member (16), the bottom slide member (18) and the third slide member (19) are guided in a manner to be vertically slidable and restrained in the thicknesswise direc­ tion of the door glass (12) by a guide member (20) on one side and a guide member (22) on the other side, which are secured to a door (10) inside the compartment (14) inwardly of the door glass (12), the third slide member (19) is formed in such a manner that the width thereof has clearances in the longitudinal direction of the door (10) relative to a guide groove (22A) of the guide member (22) on the other side; and the top and the bottom slide members (16, 18) are restrained in the longitudinal direction of the door (10) by a guide groove (20A) of the guide member (20) on one side.

Description: Window glass guide system for vehicle This invention relates to a window glass guide system for a vehicle, and more particularly to improvements in a window glass guide system for a vehicle, wherein a top slide member, a bottom slide member and a third slide member, which are protruded into a compartment, are secured to the top, the bottom of one end edge and the top of the other end edge in the longitudinal direction of a door glass, respectively, and the top slide member, the bottom slide member and the third slide member are guided in a manner to be vertically slidable and restrained in the thicknesswise direction of the door glass by a guide member on one side and a guide member on the other side, which are secured to a door inside the compartment inwardly of the door glass. As a means for decreasing air resistance and wind noises during high speed running of the motor vehicle, there has been proposed a so-called flush surface type motor vehicle, wherein the outer surface of a vehicle body, including the outer surfaces of the door glasses are made flush with one another. As the means for making the door glass flush with a door window frame in a side door of a motor vehicle, there is one in which slide members shifted inwardly of the compartment are secured to end edges of the door glass and these slide members are guided in a manner to be slidable in the vertical direction by channel-shaped guide members disposed inwardly of the door glass of the door. As an example thereof, there is a window glass guide system for a vehicle as disclosed in Japanese Patent Kokai (Laid-Open) No. 164421/1983. In this window glass guide system for a vehicle, each of slide members is provided at the top of each of the front and the rear end edges of the door glass, and the other slide member is provided at the bottom of the center of the door glass in the longitudinal direction thereof, and these slide members are guided vertically slidably by a front, a rear and a center guide members. In this case, the rear slide member secured to the rear end edge and the center slide member are guided in a manner to be restrained in the thicknesswise direction of the glass and in the longitudinal direction of the door, and, the other front slide member is guided in a manner to be guided in a manner to be restrained in the thicknesswise direction of the glass. In the window glass guide system for a vehicle with the above-described arrangement, the door glass can be vertically movable in a stabilized state, however, depending on the size of the door and the like, there may be cases where it is difficult to secure a space for mounting the center guide member. Furthermore, the construction of providing three guide members is complicated, thus presenting such disadvantages that the manufacturing cost is raised, and moreover, the adjustment between the guide members during mounting takes much time. It is therefore the primary object of the present invention to provide a window glass guide system for a vehicle, wherein the door glass can be smoothly, vertically moved, being held in a proper posture, without using a construction complicated and high in manufacturing cost. To this end, the present invention contemplates that, in a window glass guide system for a vehicle, wherein a top slide member, a bottom slide member and a third slide member, which are protruded into a compartment, are secured to the top, the bottom of one end edge and the top of the other end edge in the longitudinal direction of a door glass, respectively, and the top slide member, the bottom slide member and the third slide member are guided in a manner to be vertically slidable and restrained in the thicknesswise direction of the door glass by a guide member on one side and a guide member on the other side, which are secured to a door inside the compartment inwardly of the door glass, the third slide member is formed in such a manner that the width thereof has clearances in the longitudinal direction of the door relative to a guide groove of the guide member on the other side, and the top and the bottom slide members are restrained in the longitudinal direction of the door by a guide groove of the guide member on one side. To the above end, the present invention contemplates that the door glass has a substantially horizontal top end edge and an inclined end edge starting from an end portion of the top end edge, which is opposed to the one end edge and ending at the top end of the other end edge and the one end edge of the door glass has a length substantially equal to the total height of the door glass. To the above end, the present invention contemplates that the guide member on one side and the guide member on the other side are fixed to stepped portions of a door window frame of the door facing to the top and bottom slide members and the third slide member from the compartment, respectively, and provided with the guide grooves being of a U-shape in cross section. To the above end, the present invention contemplates that each of the top slide member, the bottom slide member and the third slide member is provided at the outer end thereof with an externally threaded portion, which is threadably coupled into a nut inserted into a through-hole of the door glass, so as to be tightendly fixed to the door glass. To the above end, the present invention contemplates that the door glass is vertically movable by one arm-shaped window regulator provided at the center of the lower end portion of the door. According to the present invention, the top slide member and the bottom slide member, which are secured to the top and the bottom of one end edge in the longitudinal direction of the door glass, are restrained not only in the thicknesswise direction of the door glass but also in the longitudinal direction of the door by the guide members on one side, so that the door glass can be held in a proper posture and the door glass can be smoothly moved in the vertical direction. In consequence, necessity of a complicated construction of the center guide and the like for maintaining the posture of the door glass is eliminated, and a mere function of pushing up or pulling down the door glass is required of a window regulator, so that the construction can be simplified. Fig. 1 is a front view showing one embodiment of the window glass guide apparatus for a vehicle according to the present invention; Figs. 2 and 3 are enlarged sectional views taken along the lines II - II and III - III in Fig. 1, respectively; and Fig. 4 is a. perspective view showing the direction of restraining the door glass in the aobve-mentioned embodiment. Description will hereunder be given of one embodiment of the present invention with reference to the drawings. As shown in Figs. 1 to 4, according to this embodiment, in a window glass guide system for a vehicle, wherein a top slide member 16, a bottom slide member 18 and a front slide member 19, which are protruded into a compartment 14, are secured to the top, the bottom of a rear end edge 12B opposed to an inclined end dege 12A of the door glass 12 and the top of a front end edge connected to the forward end of the inclined end edge 12A in a side door 10, respectively, and the top slide member 16, the bottom slide member 18 and the front slide member 19 are guided in a manner to be vertically slidable and restrained in the thicknesswise direction of the door glass by a rear guide member 20 and a front guide member 22, which are channel-shaped and secured to the side door 10 inside the compartment 14 inwardly of the door glass 12, the front slide member 19 is formed in such a manner that the width thereof has clearances in the longitudianal direction of the door relative to a guide groove 22A of the front guide member 22, and the top slide member 16 and the bottom slide member 18 are restrained in the longitudinal direction of the door by a guide groove 20A of the rear guide member 20. Arrow marks L and W shown in Fig. 4 indicate the direction of the door glass 12 restrained by the guide members 20 and 22. Here, the side door 10 is provided with a door window frame 28, wherein a front side of the door window frame 28 in the longitudinal direction of the vehicle is made to be an inclined side 28A along the inclined end edge 12A of the door glass 12, and a rear side of the door window frame 28 is made to be a vertical side 28B along the rear end edge 12B of the door glass 12. Furthermore, Reference numeral 12D in Fig. 1 indicates a substantially horizontal top end edge of the door glass 12. As shown in Figs. 2 to 4, each of the top slide member 16, the bottom slide member 18 and the front slide member 19 is provided at the outer end thereof with an externally threaded portion 32, which is threadably coupled into a nut 36 inserted into a nut 36 inserted into a through-hole 34 of the door glass 12, so as to be tightendly fixed to the door glass 12. In Fig. 1, designated at 38 is a triangular patch for blocking a triangular space disposed downwardly of the forward end portion of the inclined side 28A of the door window frame 28. The front guide member 22 is disposed along the rear end of the triangular patch 38, and then, extended into a panel of the side door 10. The front guide member 22 and the rear guide member 20 are fixed to steped portions 29 of the door window frame 28 facing to the top and bottom slide members 16, 18 and the front slide member 19 from the compartment 14, respectively, and provided with the guide groove 20A of a U-shape in cross section. The rear guide member 20 is mounted to the rear vertical side 28B of the door window frame 28 through screws 42 and secured and fixed at the lower half portion thereof to a door panel. In Fig. 2, denoted at 44 is a door glass weather strip interposed between the door glass 12 and the door window frame 28, for sealing a space formed therebetween, and 46 a door frame molding secured to an inner peripheral portion of a door outer panel 48. The door glass 12 is vertically movable by one arm-shaped window regulator 51 provided at the center of the lower end portion of the door panel. This window regulator 51 is rotatably driven by a regulator handle or a motor (both are not shown), and the forward end thereof is roatably connected to the door glass 12. Description will hereunder be given of an action of the above embodiment. Referring to Fig. 1, when the regulator handle or the motor is driven to raise the door glass 12 from the fully opened state indicated by two-dot chain lines to the fully closed state, a force for pushing up the door glass acts upon the forward end of the window regulator 51. Out of three slide members secured to the window glass 12, the top slide member 16 and the bottom slide member 18 are restrained not only in the thickrlesswise direction of the glass but also in the longitudinal direction of the door by the guide groove 20A of the rear guide member 20, so that the door glass 12 is always vertically moved in the correct state along the rear guide member 20 regardless of the construction of the window regulator 51. In consequence, even if the window regulator 51 has a simple one-arm construction, there is no problem, and the center guide described in Japanese Patent Kokai (Laid-Open) No. 164421/1983 is not necessary. Additionally, the above embodiment is concerned with a front side door in a four-door vehicle or a side door in two-door vehicle, however, the present invention need not necessarily be limited to this, and is applicable to a rear side door in a four-door vehicle. In this case, the top slide member and the bottom slide member are to be secured to the front end edge of the door glass. Furthermore, in the above embodiment, the one arm window regulator has been used, however this may be replaced by a wire or any other door glass lifting mechanism. In this case, it is not necessary to provide a mechanism for maintaining the door glass horizontally in the door glass lifting mechanism. Further, in the above embodiment, the top slide member 16, the bottom slide member 18 and the front slide member 19 are formed into disc-like members, which are guided by the rear guide member 20 and the front guide member 22, which are secured to positions adjacent the positions, where these slide members are secured to the door glass 12, on the side of the compartment 14r however, these slide members may be replaced by ones being of generally crank-shaped for example, and the forward ends of these slide members on the side of the compartment may be guided in the vertical direction by the guide members.

Claims: Claims: 1. A window glass guide system for a vehicle, wherein a top slide member (16), a bottom slide member (18) and a third slide member (19), which are protruded into a compartment (14), are secured to the top, the bottom of one end edge (12B) and the top of the other end dege (12C) in the longitudinal direction of a door glass (12), respectively, and the top slide member (16), the bottom slide member (18) and the third slide member (19) are guided in a manner to be vertically slidable and restrained in the thicknesswise direction of the door glass (12) by a guide member (20) on one side and a guide member (22) on the other side, which are secured to a door (10) inside the compartment (14) inwardly of the door glass (12), the third slide member (19) is formed in such a manner that the width thereof has clearances in the longitudinal direction of the door (10) relative to a guide groove (22A) of said guide member (22) on the other side; and the top and the bottom slide members (16, 18) are restrained in the longitudinal direction of the door (10) by a guide groove (20A) of the guide member (20) on one side. 2. A window glass guide system for a vehicle as set forth in claim 1, wherein: said door glass (12) has a substantially horizontal top end dege (12D) and an inclined end edge (12A) starting from an end portion of said top end edge (12D), which is opposite to said one end edge (12B) and ending at the top end of the other end edge (12C); and said one end edge (12B) of the door glass (12) has a length substantially equal to the total height of the door glass (12). 3. A window glass guide system for a vehicle as set forth in claim 1, wherein the guide member (20) on one side and the guide member (22) on the other side are fixed to stepped portions (29) of a door window frame (28) of the door (10) facing to the top and bottom slide members (16, 18) and the third slide member (19) from the compartment (14), respectively, and provided with the guide grooves (20A, 20B) being of a U-shape in cross section. 4. A window glass guide system for a vehicle as set forth in claim 1, 2 or 3, wherein each of the top slide member (16), the bottom slide member (18) and the third slide member (19) is provided at the outer end thereof with an externally threaded portion (32), which is threadably coupled into a nut (36) inserted into a through-hole (34) of the door glass (12), so as to be tightendly fixed to the door glass (12). 5. A window glass guide system for a vehicle as set forth in claim 1, 2, 3 or 4, wherein the door glass (12) is vertically movable by one arm-shaped window regulator (51) provided at the center of the lower end portion of the door (10).

Inventors: ONO, KENZI
Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA
Application year: 1986
Main classification: B60J1
IPC codes: B60J1, B60J5, B60J10