JPH071295Y2 - Vehicle door glass opening / closing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an opening / closing structure for a vehicle door glass using double-curved surface glass.

[Prior Art] In recent years, in order to improve the appearance design and aerodynamic characteristics of a vehicle, door glass has been made into a curved surface glass that is curved along the body line. Although this double-curved glass has a complicated curved surface, it has a curved surface that curves toward the outside of the vehicle along the body line, and the radius of curvature gradually increases or decreases toward the front and rear of the vehicle.

Therefore, when opening and closing the door glass 1,
When the posture is fixed and moved up and down, the door panel 2 largely swings inward and outward near the waistline of the door panel 2 and the contact pressure with a weather strip (not shown) provided in this portion is large as shown in FIG. There is a concern that it may fluctuate and the seal may not be made properly.

Therefore, conventionally, for example, the pin guide structure shown in FIGS. 6 and 7 is used. In this structure, front end disk-shaped guide pins 6 are provided at two positions before and after the lower side of the door glass 1, and these are fitted to guide rails 7 provided in the door panel. The door glass 1 is reliably positioned in the front-rear direction of the vehicle by the guide pin 6 and the guide rail 7, and can be moved inward and outward of the vehicle within a certain range.

On the other hand, in the waist line opening of the door panel 2, elastic stabilizers 8A and 8B are provided below the weather strip 4 with the door glass 1 sandwiched from the inside and outside, so that when the door glass is moved up and down, the glass 1 is above the waist. The weather strip 4 is regulated so as to pass through almost the center of the line opening to prevent deterioration of the sealing property of the weather strip 4.

[Problems to be Solved by the Invention] In the above-described conventional structure, the number of parts such as the guide pin and the stabilizer is large, and it takes time to manufacture and assemble them, and the door glass has flexibility in the inward and outward directions. Since it is added, there is a problem that the backlash when opening and closing is relatively large.

The present invention solves such a problem, and provides a vehicle door glass opening / closing structure capable of smoothly and surely opening / closing the multi-curved surface door glass without requiring labor for manufacturing and assembling. To aim.

[Means for Solving the Problems] The structure of the present invention will be described with reference to FIGS. 1 and 2. The door glass 1 made of multi-curved glass has a lower side portion 11 located below the waist line of the door panel 2. It is formed in a spindle surface which is curved outwardly of the vehicle and whose radius of curvature is gradually reduced or gradually increased in the vehicle front-rear direction about the same axis located substantially horizontally inward of the vehicle. On the other hand, inside the door panel 2, there are provided rail members 3A and 3B which are curved along the front end and the rear end of the lower side portion 11 of the door glass 1 and guide the vertical movement thereof.

[Operation] In the above configuration, when the door glass is moved up and down by a known opening / closing mechanism, the door glass whose front and rear ends are guided by the rail members moves up and down while rotating around the central axis. As a result, the inward and outward displacement of the waistline opening when the door glass moves up and down is suppressed to a small level, and the sealing property of the weather strip is prevented from being deteriorated.

[Effect] According to the structure of the present invention, it is possible to reduce the cost because it is not necessary to attach and manufacture fine parts such as guide pins and stabilizers as in the prior art, and the door glass can be reliably moved vertically by the rail member. Therefore, a smooth opening and closing operation without rattling is realized.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention. In FIG. 1, reference numeral 1 is a door glass of a vehicle front door, and a glass surface is a compound curved surface whose curvature changes intricately along a body line, and it has a projecting shape to the outside of the vehicle (front side of the drawing). Not only does it curve, but its radius of curvature gradually increases toward the rear of the vehicle.

Then, the lower glass part 11 located below the waist line of the door panel 2 when the door glass 1 is raised and closed.
Is curved toward the outside of the vehicle so as to form a spindle surface with the same axis as the central axis.

That is, as shown in FIG. 3, the lower side portion 11 has the front end 11a.
Is a radius of curvature Ra centered on a substantially horizontal axis Ox inside the vehicle
The intermediate 11b and the rear end 11c are curved surfaces having radii of curvature Rb and Rc centered on the axis Ox, respectively. Here, Ra <Rb <Rc, and consequently the curved surface of the lower side portion 11 forms a spindle surface whose radius of curvature gradually increases toward the rear of the vehicle about the same axis Ox.

Inside the door panel 2 guide rails with a U-shaped cross section at the front and rear positions
3A and 3B are provided, and these guide rails 3A and 3B are curved with a curvature along the front end 11a and the rear end 11c of the lower side portion 11 of the door glass, respectively, and the front and rear ends 11a and 11c are vertically movable. keeping.

The details are shown in FIG. 4, and for example, the front end 11 of the door glass 1
a is held by a glass run 32 installed in the rail body 31.

In the above-mentioned opening / closing structure, when the door glass 1 is opened and closed by the well-known opening / closing mechanism 5 (Fig. 2), the door glass 1 is rotated around the central axis Ox by the rails 3A and 3B which guide the lower side portion 11 thereof. It is moved up and down while moving, and as a result, the general glass surface is the waist line opening of the door panel 2.
It passes through almost the center of 21 with almost no displacement. Thus, the weather strip 4 provided at the opening edge is always in proper contact with the glass surface, and the sealing performance is not deteriorated.

Although the above embodiment has been described with respect to the front door glass, it goes without saying that it can be applied to the rear door glass, and in this case, the increasing direction of the radius of curvature is opposite to the above.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is an exploded perspective view of an opening / closing structure, and FIG. 2 is a sectional view thereof.
Along the line II-II in the drawing, FIG. 3 is a schematic perspective view of the door glass, FIG. 4 is a cross-sectional view of the guide rail, FIGS. 5 to 7 show a conventional example, and FIG. 5 is a door panel. 6 is a sectional view of the waistline portion of FIG.
The figure is a sectional view thereof. 1 …… door glass 11 …… bottom side 11a …… front end 11c …… rear end 2 …… door panel 21 …… waistline opening 3A, 3B …… rail member (guide rail) 4 …… weather strip Ox …… center axis

Claims (1)

[Scope of utility model registration request] 1. An opening / closing device for a vehicle door glass using double-curved glass, wherein a lower side portion of the door glass located below a waist line of a door panel is curved outwardly of the vehicle and the radius of curvature is curved. Is formed on the spindle surface that is gradually and gradually increased in the vehicle front-rear direction about the same axis located substantially horizontally inside the vehicle as a central axis, while inside the door panel along the front and rear ends of the lower side of the door glass. An opening / closing structure for a vehicle door glass, which is characterized in that a rail member is provided that bends and guides the vertical movement of these.