JPH0818492B2 - Car window glass lifting guide device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle window glass guide device that is opened and closed by being moved up and down.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window glass lifting guide device for an automobile, in which a slider attached to the lower end of the window glass is guided by a guide rail.

(Prior Art) Door windows of automobiles are generally opened and closed by raising and lowering a window glass. In that case, it is necessary to accurately set the ascending / descending trajectory so that the glass does not tilt forward, backward, leftward, and rightward during the ascending and descending. Therefore, usually, a vertical guide rail is provided inside the door body, and the slider attached to the lower end of the glass is guided by the guide rail.

Conventional such window glass lifting guide device,
For example, as shown in Japanese Utility Model Publication No. 56-3500,
It is composed of a channel-shaped guide rail and a guide roller, that is, a slider, which is in sliding contact with the inner surface thereof.

(Problems to be Solved by the Invention) By the way, the guide rail of such a window glass lifting guide device is generally attached to a door inner panel. On the other hand, the window glass is positioned between the door inner panel and the door outer panel. Therefore, in the conventional guide roller in which the guide roller is guided by the inner surface of the guide rail, the groove of the guide rail must be opened toward the outside of the vehicle.

Therefore, there is a problem that water, dust, and the like that have entered the inside of the door body are likely to collect in the groove of the guide rail.

Further, in such a structure in which the guide roller is guided by the inner surface of the guide rail, the inner dimension of the guide rail cannot help being increased. Further, in such a channel-shaped guide rail to which a load is applied from the inner surface side as described above, its wall thickness must be thick to some extent so as not to open the mouth. Moreover, the guide rail is relatively long.

Therefore, the guide rail becomes heavy.

The present invention has been made in view of such problems, and an object thereof is to prevent water, dust, and the like from easily entering the groove of the guide rail, and further reduce the weight of the window glass. To get a lifting guide.

Another object of the present invention is to provide an elevating / lowering guide device for a window glass which can easily absorb an assembling error and a dimensional error between the guide rail and the slider.

(Means for Solving the Problems) In order to achieve this object, in the present invention, a hollow columnar body having a rail-rail-shaped cross section is used as the guide rail. That is, the guide rail
By bending a thin metal plate, it has a bulging portion that bulges toward both sides at the top, and is formed in a cross-sectional shape in which the portion on the base side from the top has a narrow width. The guide rail is installed so that its top surface faces the outside of the vehicle. On the other hand, the slider attached to the lower end of the window glass is provided with a channel-shaped engaging portion that opens toward the inside of the vehicle. A protrusion that protrudes toward the center is provided at the tip of the engaging portion. The protrusion at the tip of the engaging portion slides on both sides of the narrow portion of the guide rail, and the inner bottom surface of the engaging portion slides on the top surface of the guide rail, and the inner surface of the engaging portion and the guide rail bulge. A gap is formed between the parts.

(Operation) With this configuration, the guide rail has a shape that is closed to the outside of the vehicle, so that water, dust, and the like hardly enter the inside thereof. Moreover,
Since the slider is guided by the outer surface of the guide rail, even if water, dust, or the like is accumulated inside the guide rail, the guide is not hindered.

By using the outer surface of the guide rail as the guide surface, it is not necessary to increase the inner dimension of the guide rail. Further, by making the guide rail a rail-shaped cross section, even if it is made of a thin metal plate, its rigidity can be sufficiently increased. Therefore, the guide rail can be made thin, and the weight thereof can be reduced. Although the slider has a wide width, the slider is a short one provided only at the lower end portion of the window glass, and therefore the weight of the lifting guide device as a whole is sufficiently reduced.

Further, since the engaging portion of the slider is brought into sliding contact with both the narrow side surface and the top surface of the guide rail, they come into contact with each other at at least three points, and the slider is reliably guided along the guide rail. Become so. Further, since a clearance is provided between the bulging portion at the top of the guide rail and the inner surface of the slider, the assembling error and the dimensional error can be easily absorbed.

(Examples) Examples of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a window glass lifting guide device according to the present invention. FIG. 1 is a cutaway rear view of a door equipped with the lifting guide device, and FIG. 2 is a vertical side view of the door. is there. Further, FIGS. 3 and 4 are cross-sectional plan views of the main part thereof.

As is apparent from FIG. 1, a door glass 1 of a vehicle is provided with a window glass 3 which is moved up and down by a window regulator 2. As shown in FIG. 2, the glass 3 is curved in an arc shape in a plane in the left-right direction of the vehicle body. Therefore, in order to move the glass 3 up and down along an arcuate locus, a front guide rail 4 and a rear guide rail 5 that extend in the up-down direction and are curved in an arc are provided inside the main body of the door 1. The front and rear sliders 6 and 7 attached to the lower end of the glass 3 are in sliding contact with the guide rails 4 and 5, respectively.

The front guide rail 4 and the slider 6 allow the glass 3 to move in the front-rear direction, but restrict the movement in the left-right direction, that is, the vehicle body width direction. On the other hand, the rear guide rail 5 and the slider 7 are both for restricting the movement of the glass 3 in the front-rear direction and the left-right direction. The in-plane rotation of the glass 3, that is, the tilt in the front-back direction is regulated by the window regulator 2.

As is clear from FIG. 3, the rear guide rail 5 is
It is formed as a hollow columnar body having a rail rail-shaped closed cross section that is installed so that the top surface faces the outside of the vehicle.
That is, the guide rail 5 includes a channel-shaped guide portion 8 that opens toward the inside of the vehicle, and a flat plate-shaped fixing portion 9 that closes the opening of the guide portion 8. The channel-shaped guide portion 8 is formed by bending a thin metal plate, and bulges 8a, 8a protruding in the vehicle front-rear direction are provided on the top portion, that is, on both sides of the vehicle outer side end portion.
Is provided. In addition, the base side of the bulging portions 8a, 8a, that is, the portion on the inner side of the vehicle is a narrow width portion. A guide surface 10 is formed by the front and rear surfaces of the narrow portion, the vehicle body inner side surfaces of the bulging portions 8a, 8a, and the top surface of the guide portion 8, that is, the end surface on the vehicle exterior side.

Short brackets 11 extending in the vehicle body front-rear direction are welded to the fixing portion 9 of the guide rail 5 at two locations above and below (only the lower portion is shown in the figure). The bracket 11 has nuts 12 and 12
Is welded, and the adjustment bolt 13
Are screwed together. The other end of the adjusting bolt 13 is attached to the door inner panel 15 by the nut 14.
It is designed to be fastened to.

Thus, the guide rail 5 is fixed to the surface of the door inner panel 15 on the outer side of the vehicle, and by adjusting the adjusting bolts 13 and 13, the position in the vehicle width direction, the vertical inclination, and the front-back inclination of the guide surface 10 are adjusted. Are adjusted respectively.

The slider 7 guided by the rear guide rail 5 is provided with a channel-shaped engaging portion 16 that opens toward the inside of the vehicle. At the inner end of the engaging portion 16, the bulging portions 8a, 8a of the guide portion 8 of the guide rail 5 projecting toward the center of the engaging portion 16 are formed.
Protrusions 16a, 16a for holding a are provided. Further, on the inner surface side of the engaging portion 16, along the inner surface, and
Sliding contact members 17 having a shape covering 16a, 16a are attached. The sliding contact member 17 is made of a resin having elasticity and lubricity such as polyacetal.

An arcuate shallow groove 21 is formed in the center of the top surface of the guide rail 5. On the other hand, the sliding contact member 17 attached to the engaging portion 16 of the slider 7 is provided with an arc-shaped projection 22 that projects toward the inside of the vehicle at approximately the center of the inner bottom portion thereof. Then, the protrusion 22 is the guide rail 5.
The concave groove 21 of the guide rail 5 is contacted with the concave groove 21 to form a clearance around the bulging portions 8a of the guide rail 5.

In this way, the inner bottom surface of the engaging portion 16 of the slider 7 comes into sliding contact with the top surface of the guide rail 5 via the protrusion 22 of the sliding contact member 17,
Further, the protrusions 16a, 16a of the engaging portion 16 are provided with the sliding contact member 17 on both front and rear surfaces of the narrow portion of the guide rail 5 and the bulged portions 8a, 8a.
It is designed to be in sliding contact with the inside surface of the vehicle body. That is,
The slider 7 has the guide surface 10 of the guide rail 5 at five points.
It is designed to come into contact with.

Three screws 19 are inserted into the flange portion 18 of the slider 7, and the slider 7 is fixed to the glass 3 by tightening a plate nut 20 on the screws 19. The glass 3 is located outside the slider 7 with respect to the vehicle.

As shown in FIG. 4, the front guide rail 4 is formed by a channel-shaped bending plate that is opened rearward, and the slider 6 has inner and outer flange portions of the guide rail 4 on the vehicle exterior side. It is supposed to be sandwiched from both sides. Therefore, the slider 6 is
On the other hand, although it is supported so as not to move in the vehicle body width direction, it is movable in the front-rear direction. Since other configurations are substantially the same as those of the rear guide rail 5 and the slider 7, the corresponding portions will be denoted by the same reference numerals and the description thereof will be omitted.

When the window regulator 2 is operated in the window glass up-and-down guide device configured as described above,
The glass 3 moves up and down while maintaining the horizontal state. then,
The glass 3 has a slider attached to its lower end.
6 and 7 are guided by sliding contact with the guide rails 4 and 5. The rear slider 7 is slidably brought into contact with the guide surface 10 on the outer surface of the guide rail 5, thereby preventing the slider 7 from moving in the vehicle width direction and the front-rear direction with respect to the guide rail 5. That is, the channel-shaped engaging portion 16 of the slider 7 slides in contact with the top surface of the guide rail 5 on the inner bottom surface thereof, and the protrusions 16a, 16a of the engaging portion 16 contact the inner surface of the bulging portion 8a of the guide rail 5 in the vehicle body. Since they are in sliding contact, movement of the guide rail 5 in the vehicle width direction is restricted. Further, since the projections 16a, 16a of the engaging portion 16 are in sliding contact with both front and rear surfaces of the narrow portion of the guide rail 5, movement of the guide rail 5 in the vehicle front-rear direction is restricted.

In this way, the glass 3 moves up and down while drawing a trajectory according to the curve of the guide rails 4 and 5. In that case, even if the parallelism between the surface of the glass 3 and the guide surface 10 of the guide rail 5 is slightly varied due to an assembly error between the guide rail 5 and the slider 7 or a dimensional error, the slider 7
Since a gap is formed between the inner surface of the engaging portion 16 and the outer surface of the guide rail 5, the variation is easily absorbed by the gap. Therefore, the glass 3 moves up and down smoothly. When there is a large deviation in the parallelism,
The parallelism can be secured by adjusting the adjusting bolts 13, 13.

Further, the guide rail 5 configured in this way has the outer side surface completely closed. Then, the upper end thereof is covered by the upper surface of the door inner panel 15. Therefore, even if water or dust gets into the door body from the doorway of the glass 3 provided on the upper surface of the door body,
It rarely penetrates inside the guide rail 5. Moreover, since the guide surface 10 with which the slider 7 is in sliding contact is formed by the outer surface of the guide rail 5, even if water, dust, or the like enters the inside of the guide rail 5, its guideability is not impaired.

Since the slider 7 is arranged outside the guide rail 5, it is not necessary to increase the inner size of the guide rail 5. Therefore, the width of the guide rail 5 can be reduced. Moreover, since the guide rail 5 has a rail-rail-shaped cross section, sufficient strength can be ensured even if the guide rail 5 is thin. Therefore, it is possible to reduce the weight of the guide rail 5.

Since the slider 7 surrounds the guide surface 10 on the outer surface of the guide rail 5, its size is relatively large. However, since the slider 7 is extremely shorter than the guide rail 5, the increase in weight has a small effect on the whole.

Further, since the width of the guide rail 5 is reduced as described above, the adjustment amount of the adjustment bolt 13 for adjusting the inclination in the front-rear direction may be small. Therefore, the adjusting bolt 13 can be shortened, and the thickness of the door 1 can be reduced.

In the above embodiment, the guide rail 5 is formed to have a closed cross-sectional shape by the channel-shaped guide portion 8 and the flat plate-shaped fixing portion 9, but the channel-shaped guide portion 8 is directly attached to the bracket 11. By sticking to
The guide rail 5 may have an open cross section. Even in this case, the surface of the guide rail 5 on the vehicle exterior side is closed, so that it is possible to obtain the same effect as the above-described embodiment.

Further, in the above description, it is assumed that it is the window glass lifting guide device for the door 1, but the present invention is not limited to this, and if it is a window glass that is opened and closed by lifting, it will be used as a lifting guide device such as a quarter glass. Can also be used.

(Effects of the Invention) As is apparent from the above description, according to the present invention, the guide rail is configured by the hollow columnar body having the rail-shaped cross section, so that even if it is made of a thin plate. , Which can have high strength. Therefore, the guide rail can be made thin, and the weight can be reduced. Also, since the guide rail is installed so that its top surface faces the outside of the vehicle, the outside surface of the vehicle is completely closed, and water and dust may get inside the guide rail. To be prevented. Therefore, its durability can be improved. Further, since the slider is in sliding contact with the top surface of the guide rail and both surfaces of the narrow width portion, and a gap is formed between the guide rail top portion and the bulging portion, the guide rail and the slider are Assembly errors and dimensional errors are easily absorbed. Therefore, it is possible to provide a window glass elevating / lowering device capable of elevating and lowering the window glass extremely smoothly.

[Brief description of drawings]

FIG. 1 shows an embodiment of a window glass lifting guide device according to the present invention. A notched rear view of a vehicle door equipped with the lifting guide device, and FIG. 2 are II-II of FIG. A longitudinal side view of the door taken along the line, FIG. 3 is a cross-sectional plan view of the rear portion of the window glass lifting guide apparatus, and FIG. 4 is a cross-sectional plan view of the front portion of the window glass lifting guide apparatus. Is. 3 ... Window glass, 4,5 ... Guide rails 6,7 ... Slider, 8 ... Guide part, 8a ... Swelling part 10 ... Guide surface, 16 ... Engaging part, 16a ... Projection part 17 …… Sliding contact member, 21 …… Protrusion, 22 …… Concave groove

Claims (1)

[Claims] 1. A window glass elevating and lowering guide device comprising: a guide rail installed in a vertical direction; and a slider attached to a lower end portion of a window glass and guided by the guide rail; wherein the guide rail is a top portion. Has a bulging portion that bulges toward both sides, and the top side of the hollow columnar body has a rail-shaped cross section with a narrower portion on the base side. The slider is installed so as to face, the slider has a channel-shaped engaging portion that opens toward the inside of the vehicle, and has a protrusion at the tip that protrudes toward the center of the slider. The projections and the inner bottom surface of the tip of the section are in sliding contact with both sides and the top surface of the narrow portion of the guide rail, respectively, so that a clearance is formed between the protrusion and the bulging portion of the guide rail. A window glass lifting guide device for automobiles, which is characterized in that