WO2004074615A1

WO2004074615A1 - Guide roller for carriages of sliding doors on motor vehicles

Info

Publication number: WO2004074615A1
Application number: PCT/EP2004/000695
Authority: WO
Inventors: Wilhelm Eudenbach
Original assignee: Ise Innomotive Systems Europe Gmbh
Priority date: 2003-02-18
Filing date: 2004-01-27
Publication date: 2004-09-02
Also published as: ATE452270T1; EP1595048B1; DE20302649U1; EP1595048A1; DE502004010517D1; EP1595048B2

Abstract

Disclosed is a guide roller for carriages of sliding doors on motor vehicles, comprising a roller body that is made of plastic or another elastic material, is rotatably disposed on a pin with the aid of a receiving opening, and is secured against axial displacement. Said guide roller is fastened by means of a positive plug-in connection between the roller body and the pin, a portion of the receiving opening expanding in an elastic manner when the roller body is placed upon the pin, whereby fastening takes place in a simplified manner while avoiding a major effort for mounting the guide roller.

Description

Guide roller for carriage of sliding doors on motor vehicles

The invention relates to a guide roller for carriages of sliding doors on motor vehicles, consisting of a roller body made of plastic or other elastic material which is rotatably arranged with a receiving opening on a bolt and secured against axial displacement.

Sliding doors for motor vehicles such as cargo sliding doors on light commercial vehicles and vans are moved to open and close by means of carriages, which are arranged above, in the middle and at the bottom of the doors. They run in rails made of sheet metal profile and consist essentially of a steel body, the z. B. may have a vertically running support roller and two horizontally running guide rollers. A known carriage of this type can be found in the German utility model no. 298 19 083.4. The guide rollers usually consist of reasons of smooth running and to reduce the running noise of thermoplastic materials. The reel bodies are riveted to a bolt fixed to the carriage with a washer as the upper axial securing and a shoulder on the bolt on the underside of the reel body as an axial boundary in this area. As shown in the drawings of the prior art, the upper washer may be disposed on a shoulder of the receiving opening located in the roller body. In this case, the upper opening of the reel body over the washer is covered with a plastic cover disk. However, the bolt may also extend completely through the receiving opening of the roller body and terminate at the upper end with a washer which is riveted to the bolt and rests against the surface of the roller body in the region of the receiving opening.

Both aforementioned embodiments of the leadership have disadvantages such as in particular high production costs. In the former embodiment with internal washer and with a cover plate for closing the upper end of the receiving opening results in addition a relatively high effort during assembly and also when replacing worn roller body. Also in the second embodiment requires the riveting of the washer for the upper axial limit of the position of the roller body on the bolt a considerable installation effort, which also results when replacing the reel body. In addition, this embodiment has the disadvantage that the rivet head touches the opposite inner side of the profile rail during movements of the carriage, so that scratch marks result with the risk of rusting, because the rivet head is made of steel and steel can work on steel.

There is therefore the task of simplifying the leadership and in particular to avoid the high assembly costs when attaching the guide roller to the bolt.

Based on a leadership role of the type mentioned, this object is achieved by a positive connection between the roller body and the bolt with an elastically resilient expansion of a portion of the receiving opening when placing the reel body on the bolt.

This solution according to the invention eliminates all previously caused by the riveting components, and also required by the riveting assembly work when attaching the reel body on the bolt fall completely away. Instead, you only need to attach the reel body to the bolt until it has reached its predetermined position on the bolt. In this situation, the plastic of a thermoplastic or the like existing roll body is held axially by positive engagement in the predetermined position on the bolt. In order to achieve the positive engagement, the roller body is elastically resiliently expanded in a correspondingly shaped area or part of the receiving opening until reaching the final position of the roller body on the bolt, where the expanded part resumes its original position elastically resilient. The production of the roller body as a plastic injection molding remains as simple as before. All that is required is a corresponding change in shape in the region of the receiving opening in order to bring about the desired positive locking on the bolt and to allow an elastically resilient widening of a part of the receiving opening of the roller body for this purpose. The bolt itself requires a relatively minor processing, which depends on the type of desired positive connection.

The positive engagement of the invention can also be achieved in that an annular thickening or a shoulder on the bolt in a corresponding annular recess engages in the wall of the receiving opening.

No matter which version is selected for the positive connection, a very easy replacement of the roller body in case of wear is possible. For this you only need to deduct the spent reel body from the bolt and aufzustecken a new reel body on the bolt.

Due to the invention also increases the life of the leadership role. Because it results in a larger bearing portion of the projected tread, with the result that the surface pressure between the bolt and the reel body decreases.

Even damage to the inside of the rail, which is opposite to the roller head, in contrast to the prior art is not to be feared because there are no steel parts at the top of the reel body.

A preferred embodiment of the invention is that the Aufnahmeöffhung the reel body has an annular thickening and the bolt has a corresponding annular groove into which engages the annular thickening when placing the reel body on the bolt. In this case, the annular groove on the bolt may be wider than the annular thickening on the roller body. The annular groove or a corresponding constriction can be located both in the upper and in the lower region of the bolt or in its central region. With an annular groove on the bolt, which is wider than the thickening of the reel body, a height tolerance compensation is created. The annular groove or constriction should expediently have in cross-section rounded or curved or oblique transition areas.

The plug-in and locking principle according to the invention for arranging the roller body on the bolt can be verwldichen after a development of the invention also by the receiving opening of the roller body has an annular groove and the bolt has a corresponding annular thickening in the annular groove when placing the roller body on the bolt locks.

According to an alternative embodiment of the development according to the invention, the Receiving opening as well as the pin have a conical shape, wherein the conical shape tapers from top to bottom. In this case, when placing the roller body on the bolt initially a resilient expansion of the roller body takes place in the region of the beginning of the receiving opening, which also elastically resiliently regresses until the roller body has reached its final position on the bolt. The thus obtained conical positive engagement of the invention Steclcverbindung prevents the reel body can easily leave the seat thus achieved again. If the reel body is to be replaced due to wear, you only need to deduct the reel body overcoming the elastically resilient restoring forces of the bolt and again aufzustecken a new reel body.

The roller body may be mushroom-shaped with an upper head and a lower shaft. However, the invention can be readily verweldichen also on a relatively flat roller body whose peripheral surface substantially corresponds to the tread, so that there is a total disk-shaped training.

Preferably, the receiving opening is formed as a blind hole, and expediently it is closed at its inner end by a continuous upper part of the reel body. Although the invention also allows for a continuously extending through the roller body receiving opening, but a blind hole-shaped receiving opening provides the ability to form a smooth continuous top of the roll, so that the pivot bearing between the bolt and roller body is covered and closed without additional effort and touches between the Reel body and the inner wall of the rail are harmless.

Preferably, the receiving opening of the roller body is longer than the engaging into the receiving opening part of the bolt. This can also compensate for any tolerances and, moreover, unnecessary friction between the free end face of the bolt and the opposite bottom of the receiving opening of the reel body is avoided.

Preferably, the roller body sets with its underside on a shoulder of the bolt to a safe end position of the reel body on the bolt regardless of the to achieve positive Steclcverbindung, which already causes an axial securing in both directions.

Embodiments of the invention are explained below with reference to the drawings. In the drawings show:

Fig. L is a perspective view of a connected to a rail carriage of a sliding door for motor vehicles according to the prior art; Figure 2 is a cross-sectional view of a support and guide roller assembly in a rail with a first known embodiment of the guide roller. Fig. 3 is a view as in Figure 2, but with a second known embodiment of the guide roller. Fig. 4 is a view as in Figures 2 and 3, but with a guide roller according to a first preferred embodiment of the invention.

Figure 5 is a cross-sectional view of the first preferred embodiment of a guide roller according to the invention as in Figure 4, but in an enlarged view. Fig. 6 is a cross-sectional view of a second preferred embodiment of a guide roller according to the invention; Fig. 7 is a cross-sectional view of a third preferred embodiment of a guide roller according to the invention; Fig. 8 is a cross-sectional view of a fourth preferred embodiment of a guide roller according to the invention; 9 is a cross-sectional view of a fifth preferred embodiment of a guide roller according to the invention.

Figs. 1, 2 and 3 show examples of the prior art. In Fig. 1, a carriage 1 is attached to a rail 2, wherein support plates 3, 4 extend into an opening of the rail 2 and a vertically running support roller 5 and two horizontally running guide rollers 6 have.

In a first known exemplary embodiment according to FIG. 2, a mushroom-shaped roller body 8 consisting of a head 13 and a shaft 14 is produced from a thermoplastic material. plastic, about a fastened to the support plate 3 bolt 7 rotatably mounted. The bearing surfaces form the peripheral surface of the bolt 7 in connection with the surface of a central receiving opening 9, which extends from the underside of the reel body 8 forth in an extension 9 'of the receiving opening 9. During assembly of the guide roller 6, the roller body 8 is placed on a shoulder 21 of the bolt 7 until it is placed on it and secured at the top by means of a washer 10 and a corresponding riveting 11 in this position. The extended receiving opening 9 'is closed with a cover plate 12 made of plastic in the manner shown in the drawing. Thereafter, the guide roller 6 is ready for use on the support plate 3 in the rail 2 with pivotal mounting on the bolt 7.

The second embodiment of a guide roller 6 shown in FIG. 3 differs from the previously described embodiment according to FIG. 2 in that the receiving opening 9 extends completely through the roller body 8 and on its projecting end the washer with the riveting 11 is exposed exposed.

In the first preferred embodiment of the invention shown in FIG. 4, in contrast to the prior art, the horizontally running guide roller 6 is connected to the bolt 7 in a simple manner by a plug connection. For this purpose, the bolt 7 in its upper region an annular groove 16, into which engages a formed in a corresponding position in the receiving opening 9 in the formation of the reel body 8 annular Verdilc- tion 15 in the ready position of the reel body 8 on the pin 7. The roller body 8 is mushroom-shaped from a head 13 with the tread 8 'and a shaft 14, and is manufactured as a molded part of a thermoplastic material, on the one hand, the necessary smoothness and reduction of the running noise of the leadership

6 ensures in the rail 2, on the other hand, but also causes the axial securing of the position of the roller body 8 on the pin 7. To mount the guide roller 6 of the roller body 8 is placed centrally with the open side of the receiving opening 9 on the free end face 18 of the bolt 7 and pulled in a simple manner to the stop on the shoulder 21 on the pin 7 until the annular thickening 15 in the Ring groove 16 resiliently engages. Because when slipping the reel body 8 over the upper portion of the bolt

7 has an elastically resilient widening of the receiving opening 9 in the region of the constriction the receiving opening 9, namely in the region of the annular thickening 15 occurred until this thickening 15 snaps into the annular groove 16 and the expansion goes back again.

In this simple manner, the assembly of the reel body 8 has taken place on the bolt 7. It was made a positive connection between the reel body 8 and the bolt 7. Between the bottom 17 of the receiving opening 9 in the roller body 8 and the free end face 18 remains for tolerance and play a distance, as shown in Fig. 4. The dimensions and tolerances of the bearing surfaces of the roller body 8 and the bolt 7 are coordinated so that the guide roller 6 can rotate easily and receives a suitable radial guidance on the bolt 7. Particularly noteworthy is the continuous closed upper surface 20 of the reel body 8 in contrast to the prior art.

The embodiment described above is shown in Fig. 5 again on an enlarged scale, without any appreciable differences arise, so that will be omitted a new description.

The second preferred embodiment of the invention in Fig. 6 differs from the previously described embodiment, especially in that the annular thickening 15 'within the receiving opening 9 is not in the head 13 but in the shaft 14 of the reel body 8 and the associated annular groove 16 'at the

Bolt 7 is at the appropriate height. In addition, the annular groove 16 'is wider than the annular thickening 15', so that form on both sides of the annular groove 16 'extensions 19, which allow the reel body 8 a certain axial play on the pin 7. The

Ring grooves 16 'and the annular thickenings 15' are rounded in their transition areas or arcuate or obliquely designed. When mounting the

Guide roller 6, the attachment of the roller body 8 on the bolt 7 is just as simple as in the embodiment described above, and the same applies to the replacement of the reel body 8, if this is necessary due to wear.

The third preferred embodiment of the invention according to FIG. 7 differs from the previously described embodiments in that the locking devices Bond between pin 7 and roller body 8 of the guide roller 6 and the positive engagement by a conical configuration of the bolt 7 and also the receiving opening 9, as shown in Fig. 7, is achieved. As a result, when the roller body 8 of the guide roller 6 is mounted on the bolt 7, an elastically resilient widening of the receiving opening 9 takes place, in particular in its initial area, and this widening forms as the roller body 8 continues to be pulled onto the bolt 7 until it stops Paragraph 21 back again. In the position of the reel body 8 on the bolt 7 shown in FIG. 7, the guide roller 6 is ready for operation. The reel body 8 can just as easily be deducted again from the bolt 7 in the event of wear and replaced by a new reel body 8. Incidentally, this embodiment is a relatively flat roller design, in which the peripheral surface essentially forms the running surface 8 '. Also in this embodiment, for tolerance reasons, a gap-shaped gap between the bottom 17 of the receiving opening 9 and the free end face 18 of the bolt. 7

In the fourth and fifth embodiment according to FIGS. 8 and 9, in contrast to the examples according to FIGS. 4, 5 and 6, there is a thickening 22 or 22 'on the bolt 7 and a corresponding annular groove 23 or 23' in the Similarly as in the embodiment of FIG. 5, the positive engagement by a latching connection between the reel body 8 and the pin 7 in the upper region of the bolt 7 and thus in the head 13 of the reel body 8 when plugging the same on the bolt 7 instead. In contrast to this, in the fifth exemplary embodiment according to FIG. 9, the latching connection is arranged in the shaft 14 of the roller body 8 and thus close to the shoulder 21 in the region of the lower end of the bolt 7. The handling during assembly of the reel body 8 on the bolt 7 and when replacing the reel body 8 substantially corresponds to the handling of the other embodiments, so that is waived a repetition.

Claims

claims

1. Guide roller for carriage of sliding doors to motor vehicles, consisting of a roller body made of plastic or other elastic material which is rotatably mounted with a receiving opening on a bolt and secured against axial displacement, characterized by a positive connection between the roller body (8) and the bolt (7) with an elastically resilient expansion of a portion of the receiving opening (9) when placing the reel body (8) on the bolt (7).

2. Guide roller according to claim 1, characterized in that the receiving opening (9) of the roller body (8) has an annular thickening (15, 15 ') and the bolt (7) has a corresponding annular groove (16, 16'), in which the annular thickening (15, 15 ') when placing the roller body (8) on the bolt (7) engages.

3. FühruiigsroUe according to claim 2, characterized in that the annular groove (16 ') on the bolt (7) is wider than the annular thickening (15') on the roller body (8).

4. Guide roller according to claim 2 or 3, characterized in that the annular groove (16 ') or constriction as well as the thickening (15') in cross-section rounded or curved or oblique transition areas.

5. Guide roller according to claim 1, characterized in that the receiving opening (9) of the roller body (8) has an annular groove (23, 23 ') and the bolt (7) has a corresponding annular thickening (22, 22'), in the Ring groove (23, 23 ') when placing the roller body (8) on the bolt (7) engages.

6. Guide roller according to claim 1, characterized in that the receiving opening (9) and the bolt (7) have a conical shape, which tapers from top to bottom.

7. Guide roller according to one of the preceding claims, characterized in that the roller body (8) is mushroom-shaped with an upper head (13) and a lower shaft (14).

8. Guide roller according to one of the preceding claims, characterized in that the receiving opening (9) forms a blind hole and is closed at its inner end by a continuous upper part of the roller body (8).

9. Guide roller according to one of the preceding claims, characterized in that the receiving opening (9) of the roller body (8) is longer than in the receiving opening (9) cross-part of the bolt (7).

10. Guide roller according to one of the preceding claims, characterized in that the roller body (8) with its underside on a shoulder (21) of the bolt (7) touches down.

1.3

2.3