JPH0245055Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a means for fixing a guide rail that guides the raising and lowering of an automobile door glass and a door glass run installed in this guide rail, especially in the vertical portion. The present invention relates to a door glass run mounting structure suitable for holding the periphery of a door glass.

[Conventional technology]

Conventionally, this type of guide rail for guiding the raising and lowering of a door glass of an automobile has generally been simplified to have a simple cross-sectional shape, especially inside the door, in order to reduce costs.

That is, as shown in FIG.
A door glass run 2 made of synthetic resin is fitted inside the door glass run 2, and the fixing means for fixing the door glass run 2 and the guide rail 1 is provided by protruding from the inner surface of the side wall 1a of the guide rail 1 and the outer periphery of the side wall of the door glass run 2. This is done by the contact friction force with the provided external lip 2a.

However, in this case, as the material of the door glass run 2 ages over time, the above-mentioned frictional force gradually decreases, and the fixation between them becomes weaker.

Furthermore, the door glass run 2 has a pair of internal lips 2b, 2b protruding from the inner surface of its side wall, and is configured to clamp and seal the periphery of the door glass run 3, so that the door glass run As the door glass run 3 moves up and down, frictional forces act in the following directions between its periphery and the door glass run 2. That is, in the horizontal part above the guide rail 1 shown in FIG. 1, the door glass 3 moves in the direction of appearing and retracting with respect to the door glass run 2. Frictional force is generated (in the left-right direction in Figure 2), and the door glass 3 moves while sliding vertically within the door glass run 2 at the left and right vertical parts of the guide rail 1 in the figure. Frictional force is generated in the longitudinal direction (front-rear direction in FIG. 2) in the door glass run 2.

Therefore, the fixation of the door glass run 2 and the guide rail 1 by the contact friction force is overcome by the friction force caused by the lifting and lowering of the door glass 3, and the door glass run 2 escapes from the guide rail 1 in the horizontal part, and also in the vertical part. In this case, the door glass run 2 may shift vertically within the guide rail 1. There was a problem. In particular, the door glass run 2 fitted to the vertical part of the guide rail 1 is in contact with the right edge of the door glass 3 over its entire length, as shown in FIG. The frictional force generated in the horizontal portion of 1 is considerably larger, and the above-mentioned drawbacks become noticeable.

In order to prevent this, a fixing material 4 such as adhesive or double-sided tape is sometimes applied or attached to the back of the door glass run 2, but this method does not provide sufficient cost reduction effects. Otherwise, the door glass run 2 will lift up from the guide rail 1 by the thickness of the adhesive material 4, pushing the door glass 3, increasing sliding resistance, and adversely affecting the smooth lifting and lowering operation of the door glass 3. In addition, the above-mentioned drawbacks in the vertical portion of the guide rail 1 are further exacerbated.

As a solution to these shortcomings, Jitsukaisho
There is a device as shown in FIG. 3 disclosed in Japanese Patent No. 54-81522. This is because, on the outside of the door, the tip of the side wall 1a of the guide rail 1 is rounded inward to form an engaging portion 5, and this engaging portion 5 is engaged with the outer lip 2a of the door glass run 2. This is the configuration. Although this prevents the door glass run 2 from being pulled out, there is a problem in that it is not very effective against vertical displacement in the vertical portion where a large frictional force is generated.

Furthermore, as a device disclosed in Japanese Utility Model Application Publication No. 54-41010, it has been proposed that the internal lip of the door glass run is made into two pieces, but this is not related to the retention of the door glass run, and is not related to the above-mentioned conventional lip. It has the same problems as the previous example.

Furthermore, as a device of the earlier application, the Utility Application 1983-
No. 17226 (Utility Model Application Publication No. 59-122367) has been proposed. The door glass run is attached to the door frame by sandwiching the protrusion of the door frame between the protrusion formed at the bottom of the door glass run and the protrusion formed at the tip of the door glass run opening. In the door glass run mounting structure, a protrusion that protrudes in a direction perpendicular to the door glass storage direction is provided on the side of the door glass run, and the protrusion is inserted into a hole in the door frame and supported by the door frame. This is the door glass run mounting structure constructed.

By adopting such a configuration, it is possible to prevent the door glass run from protruding from the door frame and from shifting in the vertical direction, but the manufacturing cost becomes relatively high due to the complicated structure of the door frame and door glass run. Therefore, adopting such a structure especially in a part that cannot be seen from the outside, that is, inside the door, poses a problem in terms of simplifying the structure and reducing costs.

[Means for solving problems]

In view of the above-mentioned conventional problems, the present invention uses a guide rail with a simple cross-sectional shape, and without using any fixing material etc., it is possible to hold the door glass run at low cost and reliably, and to perform this extraction and removal. It was devised to provide something that could prevent vertical misalignment, and its gist is that a plurality of through holes are formed at desired intervals along the longitudinal direction on both side walls of a guide rail with a simple letter-shaped cross section. At the same time, a door glass run is forced into the guide rail, and the portions of the external lip formed continuously on both side walls of the door glass run, facing the through hole, are brought into engagement with the through hole. A mounting structure for an automobile door glass run is characterized by the following.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the embodiment shown in Fig. 4 and below. In Figs. A large number of rectangular through holes 6, 6 are bored at predetermined intervals along the direction (direction A in FIG. 4).

2 is a cross-sectional door glass run that is large enough to be stored within the guide rail 1;
The edges of the opening on both side walls are folded back inward to form a pair of internal lips 2b, 2b, and the outer surfaces of both walls have external lips 2a, 2a that protrude obliquely outward toward the opening. are formed respectively.

When the door glass run 2 is pushed into the inside of the guide rail 1 having the structure shown in FIG. A part of the door glass run 2a is restored, and the door glass run 2 as a whole becomes wavy and fits into the guide rail 1. That is, the door glass run 2 is pushed into the guide rail 1 with its outer lip 2a narrowed inward against its elasticity, but a portion of the continuous outer lip 2a, that is, the guide rail Since the restriction is released in the part facing the through hole 6 of No. 1, the restoring force protrudes outward,
The other portions not facing the through hole 6 fit into the inner surfaces of both side walls 1a of the guide rail 1 while being restricted.

Then, as shown in FIG. 5, the external lip 2a
The protruding part enters into the through hole 6, and its tip engages with the side end surface of the through hole 6, thereby restricting the back and forth movement of the door glass run 2, that is, the movement in the width direction (direction B in FIG. 4). . At the same time, as shown in Figure 6,
The protruding portion of the external lip 2a engages with the periphery of the through hole 6, and the vertical movement of the door glass run 2, that is, the movement in the longitudinal direction (direction A in FIG. 4) is restricted, and the door glass run 2 held within.

The door glass run 2 is held on the guide rail 1 as described above at the through holes 6 formed in the longitudinal direction of the guide rail 1, and the door glass run 2 is held in the guide rail 1 in the vertical direction. This will prevent misalignment.

Fig. 7 shows a guide rail according to another embodiment of the present invention, and the guide rail 1 has a simple character shape in cross section.
On both side walls 1a, 1a, a cut and raised piece 7 which is cut off on three sides and bent inward, and a through hole 8 formed by forming the cut and raised piece 7 are formed, respectively. 8 is an engaging portion. This embodiment is particularly effective when it is not possible to drill through holes in the guide rail 1 due to its rigidity.

When the door glass run 2 is pushed into the guide rail 1, a part of the outer lip 2a enters the through hole 8, and the tip of the outer lip 2a is cut off as shown in FIG. The protruding portions of the external lips 2a are engaged with the tips of the raised pieces 7 to restrict back and forth movement, that is, movement in the width direction, and as shown in FIG. By engaging with the inner periphery, vertical movement, that is, movement in the longitudinal direction, is restricted and maintained.

[Effect of the invention] As described above, in the door glass run mounting structure according to the invention, a plurality of through holes are formed at desired intervals along the longitudinal direction in both side walls of the guide rail having a simple letter shape in cross section. At the same time, a door glass run is press-fitted into this guide rail, and a portion of an external lip formed continuously on both side walls of the door glass run, facing the through hole, faces into the through hole and engages with the door glass run. Therefore, the guide rail can be of a simple structure, and the door glass run that is pressed into the guide rail can be of a conventional type, so that costs can be reduced.

In addition, the external lip formed continuously on both side walls of the door glass run engages with the through hole at each portion facing the numerous through holes formed in the guide rail, thereby preventing deviation in the extraction direction. In addition to being able to withstand resistance in the vertical direction, where the frictional force is especially large, it is also possible to completely prevent displacement in the vertical direction.

Furthermore, since the external lip is formed continuously on both side walls of the door glass run, there is no need to align the engagement portion between the guide rail and the door glass run, that is, to align it with the through hole. , it has various effects such as further improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an automobile door, FIGS. 2 and 3 each show a conventional example, FIG. 2 is a cross-sectional view taken along the - line in FIG. 1, and FIG.
4 to 6 show an embodiment of the present invention, FIG. 4 is a perspective view of the guide rail, FIG. 5 is a sectional view taken along the - line in FIG. 1, and FIG. 6 is a front view. of-
7 to 9 show other embodiments of the present invention, FIG. 7 is a perspective view of the guide rail, FIG. 8 is a sectional view taken along the - line in FIG. It is a sectional view taken along the line - in the figure. 1... Guide rail, 1a... Same side wall, 2...
Door glass run, 2a... External lip, 3...
Door glass, 6, 8...through hole, 7...cut piece.

Claims (1)

[Scope of utility model registration request] A plurality of through holes are formed along the longitudinal direction at desired intervals in both side walls of a guide rail having a simple letter-shaped cross section, and a door glass run is force-fitted into the guide rail, and a door glass run is fitted into both side walls of the door glass run. A mounting structure for a door glass run for an automobile, characterized in that a portion of a continuously formed external lip facing the through hole faces into the through hole and is engaged with the through hole.