JPH07208021A - Window glass regulator - Google Patents

Abstract

PURPOSE:To smooth operation by stranding the engaging section of a carrier plate on the projection of a guide rail at the top dead center of window glass, projecting a lower shoe into the notched section of the guide rail and rotating the carrier plate. CONSTITUTION:The radius of a curvature of a guide rail 25 is kept constant, and an upper shoe 23 and a lower shoe 24 are slid smoothly in the rail 25 stably. When a carrier plate 22 is lifted in both shoes 23, 24, the engaging section 27 of the plate 22 is stranded on the projection 26 of the rail 25 at the top dead center of window glass 21, and receives reaction P1. The shoe 24 is energized as shown in the arrow P2, and a part of the shoe 24 is intruded into a notched section 28. The whole plate 22 is rotated at a fixed angle at the place of the top dead center, and the inclination of the plate 22 to the rail 25 is increased. The glass 21 is fallen to the body side, and brought into contact elastically with a weatherstrip properly. Accordingly, window glass can be lifted and lowered smoothly while being able to be strongly pushed against the body side at the top dead center.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire-type window glass regulator for passenger cars, particularly hard-top cars.

[0002]

2. Description of the Related Art In a side door of a hardtop car or the like, for example, a wire type window glass regulator is preferably used to drive a window glass which is raised and lowered from the door body. It is designed to be driven up and down by a certain stroke.

FIG. 9 shows a schematic structure of a conventional window glass regulator. In the figure, 1 is a window glass, 2 is a guide rail that is arranged in the door body along substantially the vertical direction, and this guide rail 2 is
Upper bracket 3 and lower bracket 4 at the upper and lower ends
It is fixed to the door body via. Reference numerals 5 and 6 are upper and lower shoes slidably mounted on the guide rail 2, and reference numeral 7 is a carrier plate which is coupled to the upper shoe 5 and the lower shoe 6 and can move along the guide rail 2 (arrow A).

The upper shoe 5 and the lower shoe 6 are shown in FIG.
As shown in FIG. 0, the carrier plate 7 is vertically arranged. The carrier plate 7 is formed with a plurality (three in this example) of bolt insertion holes 7a, 7b and 7c for attaching the window glass 1, as shown in FIG.
The window glass 1 is fixed with bolts 8 and 9 as shown in FIG.

Further, in FIG. 9, 10 and 11 are pulleys provided on the upper bracket 3 and the lower bracket 4, respectively, and a wire cable 12 is wound around these pulleys 10 and 11. The wire cable 12 is
It is connected to the carrier plate 7 in place, and the motor 13
When the carrier plate 7 is driven via the wire cable 12 by the operation of, the window glass 1 moves up and down.

By the way, the cross-sectional shape of the window glass 1 is formed to be slightly curved toward the outside of the vehicle in order to ensure a certain design. The shape of the guide rail 2 is determined by such a movement trajectory of the window glass 1 when moving up and down. The manner of curvature of the window glass 1, that is, the radius of curvature is not constant in each part in the vertical direction. The radius of curvature of the guide rail 2 is set so that the radius of curvature R ₁ is large in the lower portion or the central portion and the radius of curvature R _{2 in the} upper portion is small, as shown in FIG. 13, corresponding to such a window glass 1. ing. By making the radius of curvature R ₂ of the upper part small in this way, the window glass 1 can be collapsed to the body side when fully closed.

Here, FIGS. 14 to 16 show an example of the structure of the upper shoe 5 or the lower shoe 6. For example, the upper shoe 5 is mounted in the guide rail 2 having a C-shaped cross section as shown in FIG. Then, in the upper shoe 5 sliding along the guide rail 2, as shown in FIG.
The sliding portion 5a in the vehicle width direction is set as shown in FIG. 6, and the sliding portion 5b in the vehicle front-back direction is set as shown in FIG. The upper shoe 5 slides while slidingly contacting the inner surface of the guide rail 2 with these sliding portions 5a and 5b.

[0008]

In such a conventional window glass regulator, the window glass 1 and the guide rail 2 preferably have the same radius of curvature so that their curved shapes match each other. Formed. However, with such a slightly changing curved shape, it is difficult to form with a predetermined accuracy without producing an error in production, and therefore, the upper shoe 5 or the lower shoe 6 and the guide rail that guides this. Two
There is no choice but to set a large gap between and.

With this arrangement, gaps S ₁ , S _{2 and the} like are formed between the upper shoe 5 or the lower shoe 6 and the inner surface of the guide rail 2 as shown in FIG. However, problems such as impairing stable operation may occur. Upper shoe 5 and lower shoe 6
Such rattling significantly affects the collapse of the window glass 1 when it is fully closed.

In view of the above situation, it is an object of the present invention to provide a window glass regulator capable of smoothly and properly moving up and down the window glass and facilitating its manufacture.

[0011]

A window glass regulator according to the present invention comprises a guide rail arranged substantially vertically in a door body, an upper shoe and a lower shoe slidably mounted on the guide rail, and A carrier plate coupled to the upper shoe and the lower shoe and movable along the guide rail;
The carrier plate is provided with a window glass that is convexly curved outward, and a driving means that drives the carrier plate to move the window glass up and down. A curved protrusion is formed outward with a constant radius of curvature, and at a predetermined position on the upper portion of the guide rail, a protrusion protruding toward the carrier plate and a cutout portion that allows the lower shoe to protrude are provided. The carrier plate has an engaging portion that can come into contact with the protrusion.

[0012]

According to the present invention, since the guide rail is first formed with a constant radius of curvature, the upper shoe and the lower shoe mounted on the guide rail are in surface contact with the inner surface of the guide rail to smoothly and stably. And slide.
When the carrier plate ascends together with the upper shoe and the lower shoe, the engaging portion of the carrier plate contacts the protrusion of the guide rail at the top dead center of the window glass, and the carrier plate rides on the protrusion. As a result, the lower shoe projects into the cutout portion of the guide rail and projects from the cutout portion. Then, the carrier plate rotates at a certain angle at that position, and the carrier plate is tilted at the upper part of the guide rail, so that the window glass carried on the carrier plate falls toward the body side and is properly hit with a weather strip or the like. Contact.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a window glass regulator according to the present invention will be described below with reference to FIGS. The same reference numerals are used for substantially the same members as the conventional example.

First, the window glass 21 is carried by the carrier plate 22, and the window glass 21 is almost vertically moved in the door body through the upper shoe 23 and the lower shoe 24 attached to the carrier plate 22. It is configured to move up and down along a guide rail 25 arranged along the direction.
These basic configurations are substantially the same as those in the conventional example. Therefore, the guide rail 25 is fixed to the door main body through the upper bracket 3 and the lower bracket 4 at the upper and lower ends thereof, and these upper rails are fixed. The wire cable 12 is wound around the pulleys 10 and 11 provided on the bracket 3 and the lower bracket 4, respectively, and the carrier plate 22 is driven by the operation of the motor 13 via the wire cable 12 so that the window glass 21 moves up and down. (See FIG. 9).

The guide rail 25 has a C-shaped cross section as shown in FIG. 1, and is curved outwardly with a constant radius of curvature over its entire length, as will be described later. There is. Then, as shown in FIG. 2, the upper shoe 23 and the lower shoe 24 are vertically mounted in the guide rail 25.

Further, as shown in FIG. 3, a protrusion 26 protruding toward the carrier plate 22 is formed on the upper portion of the guide rail 25. The protrusion 26 is formed in an R shape having an appropriate size, while the carrier plate 22 is engaged with the protrusion 26 by an engaging portion 27 capable of abutting the protrusion 26.
(See FIG. 2) are formed. In the guide rail 25, a cutout portion 28 is provided at a position close to the protrusion 26, into which a part of the lower shoe 24 (near the coupling portion with the carrier plate 22) can project.

As shown in FIG. 4, the guide rail 25
Has a constant radius of curvature R in each part in the vertical direction. The cross-sectional shape of the window glass 21 itself is
In order to ensure a certain design, it is formed to be slightly curved outside the vehicle.As in the case of the conventional example, the radius of curvature is set large especially at the lower part or the central part, and the upper part is set small. ing.

Upper shoe 23 or lower shoe 24
As shown in FIGS. 5 and 6, has sliding contact surfaces 23a and 24a to be in sliding contact with the inner surface of the guide rail 25. The radius of curvature of the sliding contact surfaces 23a and 24a is the guide rail. The radius of curvature R is set to 25.

The window glass regulator according to the present invention is constructed as described above, and its operation will be described below. As described above, the guide rail 25 is formed with a constant radius of curvature R over the entire length in the vertical direction (see FIG. 4),
Further, the sliding contact surface 23 of the upper shoe 23 and the lower shoe 24
a and 24a are set to have the same radius of curvature R as shown in FIGS. Therefore, as shown in FIG. 7, the upper shoe 23 and the lower shoe 24 mounted on the guide rail 25 have sliding contact surfaces 23a and 24a.
Makes a surface contact with the inner surface of the guide rail 25 and slides smoothly and stably in the guide rail 25 without rattling. Further, the window glass 21 carried by the carrier plate 22 moves up and down together with the upper shoe 23 and the lower shoe 24, and the movement locus thereof follows the guide rail 25.

Now, the upper shoe 23 and the lower shoe 2
When the carrier plate 22 ascends together with 4, the engaging portion 27 of the carrier plate 22 comes into contact with the protrusion 26 of the guide rail 25 at the top dead center of the window glass 21, as shown in FIG. At this time, the carrier plate 22
Rides on the projection 26 and the reaction force P ₁
Then, the lower shoe 24 is urged as shown by an arrow P ₂ , and a part thereof (in the vicinity of the joint with the carrier plate 22) projects into the notch 28.

As a result, the entire carrier plate 22 is
As shown in FIG. 8, the carrier plate 22 rotates by a certain angle at the top dead center position (arrow P ₃ ), and the inclination angle of the carrier plate 22 with respect to the guide rail 25 increases. As a result, the window glass 21 carried by the carrier plate 22 falls toward the body side (arrow IN in FIG. 8), is pushed into a weather strip (not shown), and makes proper elastic contact therewith.

When the window glass 21 descends from its top dead center, as shown in FIG.
The shoulder portion 24b of the shape receives a reaction force P ₄ from the R-shaped edge portion 28a of the cutout portion 28, whereby the lower shoe 24 is mounted again at a predetermined position of the guide rail 25. Further, in response to the operation of the lower shoe 24, that is, the carrier plate 22, the window glass 21 returns from the state of being collapsed to the body side (weather strip side). The upper shoe 23 and the lower shoe 24 make surface contact with the inner surface of the guide rail 25 at their sliding contact surfaces 23a and 24a, and slide down smoothly and stably.

[0023]

As described above, according to the present invention, the upper shoe and the lower shoe can be operated smoothly along the guide rails, so that the window glass can also be operated smoothly. And especially, at the top dead center of the window glass, you can push the window glass strongly to the body side,
The degree of adhesion with the weatherstrip can be increased, and it is possible to make every effort to prevent the window glass from being sucked out to the outside of the vehicle and prevent rain leaks. Further, the amount of collapse of the window glass can be freely adjusted by appropriately selecting the shape, size, etc. of the protrusion provided on the guide rail. Furthermore,
Since the guide rail has a constant radius of curvature, the manufacturing thereof can be remarkably facilitated, and productivity can be improved, as compared with the conventional guide rail in which the radius of curvature changes. And so on.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part according to an embodiment of a window glass regulator according to the present invention.

FIG. 2 is a vertical cross-sectional view at the top dead center of the window glass according to the window glass regulator of the present invention.

FIG. 3 is a perspective view of a guide rail related to the window glass regulator.

FIG. 4 is a side view of the guide rail shown in FIG.

FIG. 5 is a perspective view of an upper shoe or a lower shoe according to the window glass regulator of the present invention.

FIG. 6 is a side view of the upper shoe or the lower shoe.

FIG. 7 is a vertical sectional view of a general portion of the guide rail.

FIG. 8 is a vertical cross-sectional view showing a collapsed state at the top dead center of the window glass according to the present invention.

FIG. 9 is a perspective view showing a schematic configuration of a conventional window glass regulator.

FIG. 10 is a perspective view of a carrier plate according to a conventional window glass regulator.

11 is a cross-sectional view taken along the line BB of FIG.

12 is a cross-sectional view taken along the line CC of FIG.

FIG. 13 is a side view of a guide rail in a conventional window glass regulator.

FIG. 14 is a perspective view of an upper shoe or a lower shoe according to a conventional window glass regulator.

FIG. 15 is a D arrow view of FIG. 14 showing an upper shoe or a lower shoe according to a conventional window glass regulator.

16 is a view as seen from an arrow E in FIG. 14 showing an upper shoe or a lower shoe according to the conventional window glass regulator.

FIG. 17 is a longitudinal sectional view of a main part of a conventional window glass regulator.

[Explanation of symbols]

 21 Window Glass 22 Carrier Plate 23 Upper Shoe 24 Lower Shoe 25 Guide Rail 26 Protrusion 27 Engagement Part 28 Notch Part

Claims (1)

[Claims] 1. A guide rail disposed substantially vertically in a door body, an upper shoe and a lower shoe slidably mounted on the guide rail, and a guide rail coupled to the upper shoe and the lower shoe and extending along the guide rail. In a window glass regulator provided with a movable carrier plate, a window glass supported on the carrier plate and curved outwardly in a convex shape, and a drive means for driving the carrier plate to move the window glass up and down. The guide rail is convexly curved and formed with a constant radius of curvature over the entire length thereof, and at a predetermined position on the upper portion of the guide rail, the protrusion protruding toward the carrier plate and the lower shoe can be inserted. And the carrier plate is A window glass regulator having an engaging portion capable of abutting against the origin.