Filler neck housing arrangement

Abstract

A filler neck housing arrangement for mounting on a body opening of a motor vehicle includes a housing body (12) which forms a passage opening for the insertion of at least one tank filler pipe. An annular sealing and holding body (10) is configured for holding the sealing and holding body on the body opening and for holding the sealing and holding body on the housing body. The sealing and holding body includes a first sealing member which, in the state of the sealing and holding body being held on the body opening, lies in a sealing manner against a surface (30) of a body part (28) bounding the body opening, and a second sealing member which, in the state of the sealing and holding body being held on the housing body, lies in a sealing manner against the housing body (12).

Claims

1. A filler neck housing arrangement for mounting on a body opening of a motor vehicle, comprising a housing body (12) which forms a passage opening for the insertion of at least one tank filler pipe, an annular sealing and holding body (10) which has first holding means for holding the sealing and holding body (10) on the body opening and second holding means for holding the sealing and holding body (10) on the housing body (12), wherein the first holding means are provided with first sealing means wherein, when the first holding means holds the sealing and holding body (10) on the body opening, the first sealing means lie in a sealing manner against a surface of a body part (28) bounding the body opening, and wherein the second holding means are provided with second sealing means wherein, when the second holding means holds the sealing and holding body (10) on the housing body (12), the second sealing means lie in a sealing manner against the housing body (12).

2. The filler neck housing arrangement as claimed in claim 1, wherein the first holding means comprise a first holding ring (20) made of plastic with first latching means for latching on the body opening, and the first sealing means comprise an annular first sealing lip (24) which is made of plastic and is integrally formed on the first holding ring (20), wherein the first sealing lip (24) is composed of a softer plastic than the first holding ring (20).

3. The filler neck housing arrangement as claimed in claim 2, wherein the first latching means have a plurality of latching hooks (22), wherein, when the first holding means holds the sealing and holding body (10) on the body opening, the latching hooks (22) lie on an upper side (26), which faces the housing body (12), of the body part (28) bounding the body opening, and the surface against which the first sealing lip (24) lies is located on a lower side (30), which faces away from the housing body (12), of the body part (28) bounding the body opening.

4. The filler neck housing arrangement as claimed in claim 2, wherein the second holding means comprise a second holding ring (32) made of plastic with second latching means for latching to the housing body (12), and the second sealing means comprise an annular second sealing lip (36) which is made of plastic and is integrally formed on the second holding ring (32), wherein the second sealing lip (36) is composed of a softer plastic than the second holding ring (32).

5. The filler neck housing arrangement as claimed in claim 4, characterized in that latching means corresponding to the second latching means of the second holding ring (32) are provided on the housing body (12).

6. The filler neck housing arrangement as claimed in claim 4, wherein the first holding ring (20) and the second holding ring (32) are connected to each other by a compensating ring (38) which is composed of plastic and is integrally formed on the first holding ring (20) on one side and on the second holding ring (32) on the other side, wherein the compensating ring (38) is composed of a softer plastic than the first holding ring (20) and the second holding ring (32).

7. The filler neck housing arrangement as claimed in claim 6, wherein the compensating ring (38) is composed of the same material as the second sealing lip (36).

8. The filler neck housing arrangement as claimed in claim 7, wherein the compensating ring (38) is connected integrally to the second sealing lip (36).

9. The filler neck housing arrangement according to claim 1, wherein, in the passage opening of the housing body (12), a holding portion (40) which, in a mounted state, lies against the at least one tank filler pipe is arranged on the housing body (12).

10. The filler neck housing arrangement as claimed in claim 9, wherein the holding portion (40) has two openings which are provided to lie against a respective tank filler pipe.

11. The filler neck housing arrangement according to claim 1, wherein the body part (28) forming the body opening is an inner body part (28) of the motor vehicle, and the housing body (12) has third holding means with which the housing body (12) can be held on a further body opening, wherein the further body opening is formed by an outer body part of the motor vehicle.

12. The filler neck housing arrangement according to claim 1, wherein the sealing and holding body (10) is produced in a two-component injection-molding process.

13. The filler neck housing arrangement according to claim 1, wherein the filler neck housing is mounted on the body opening.

14. A filler neck housing assembly for mounting on a body opening of a motor vehicle, the assembly comprising a housing body (12) which forms a passage opening for the insertion of at least one tank filler pipe, an annular sealing and holding body (10) which is configured for both holding the sealing and holding body (10) on the body opening and for holding the sealing and holding body (10) on the housing body (12), wherein the annular sealing and holding body (10) includes a first sealing member which, in a state of the sealing and holding body being held on the body opening, lies in a sealing manner against a surface of a body part (28) bounding the body opening, and wherein the annular sealing and holding body includes a second sealing member which, in a state of the sealing and holding body being held on the housing body (12), lies in a sealing manner against the housing body (12); wherein the sealing and holding body includes a first holding ring (20) made of plastic with at least a first latch for latching on the body opening, and in that the first sealing member comprises an annular first sealing lip (24) which is made of plastic and is integrally formed on the first holding ring (20), wherein the first sealing lip (24) is composed of a softer plastic than the first holding ring (20).

15. The filler neck housing arrangement as claimed in claim 14, wherein the first latch comprises a plurality of latching hooks (22), wherein, in the state held on the body opening, the latching hooks (22) lie on an upper side (26), which faces the housing body (12), of the body part (28) bounding the body opening, and the surface against which the first sealing lip (24) lies is located on a lower side (30), which faces away from the housing body (12), of the body part (28) bounding the body opening.

16. The filler neck housing arrangement as claimed in claim 15, wherein the sealing and holding body includes a second holding ring (32) made of plastic with at least a second latch for latching to the housing body (12), and the second sealing member comprises an annular second sealing lip (36) which is made of plastic and is integrally formed on the second holding ring (32), wherein the second sealing lip (36) is composed of a softer plastic than the second holding ring (32).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) An exemplary embodiment of the invention is explained in more detail below with reference to figures, in which, schematically:

(2) FIG. 1 shows a filler neck housing arrangement according to the invention with a tank flap fastened thereto, in a perspective view,

(3) FIG. 2 shows the sealing and holding body of the filler neck housing arrangement shown in FIG. 1, in a perspective view,

(4) FIG. 3 shows a perspective sectional view through the sealing and holding body shown in FIG. 2,

(5) FIG. 4 shows a perspective sectional view through the sealing and holding body shown in FIG. 2, in the state fastened to a body opening of a body part and with the housing body of the filler neck housing arrangement held on the sealing and holding body,

(6) FIG. 5 shows an enlarged detailed view of the illustration from FIG. 4, and

(7) FIG. 6 shows a further enlarged sectional view of the illustration from FIG. 4.

(8) Unless stated otherwise, the same reference signs denote the same objects in the figures.

DETAILED DESCRIPTION

(9) In FIG. 1, an annular sealing and holding body, on which a housing body 12 of the filler neck housing arrangement is held, is shown at the reference sign 10. A flap housing 14 is in turn held on the housing body 12, with a tank flap 16 which can be pivoted in a manner known per se via a pivot arm 19 between the closed position, shown in FIG. 1, and a pivoted-up open position. The annular sealing and holding body 10 is held in a manner explained in more detail below on a body opening of a body part (not illustrated in FIG. 1), in particular on an inner body part. In addition, in the example shown, the housing body 12 is held on a further body opening of an outer body part (likewise not illustrated specifically in FIG. 1) via the flap housing 14. For this purpose, the flap housing 14 has a plurality of latching projections 18. In a manner likewise known per se, the housing body 12 forms a passage opening for the insertion of at least one tank filler pipe. For this purpose, in the example shown, in the passage opening of the housing body, a holding portion, which lies against the at least one tank filler pipe, is integrally formed on the housing body, as explained in more detail below.

(10) FIG. 2 illustrates the annular sealing and holding body 10 of the filler neck housing arrangement according to the invention. The sealing and holding body 10 comprises a first holding ring 20 made of plastic with a plurality of latching hooks 22. The latching hooks 22 are arranged distributed approximately uniformly over the circumference of the holding ring 20. An annular first sealing lip 24 which is composed of a softer plastic than the first holding ring 20 is integrally formed on the first holding ring 20. The first sealing lip 24 is elastic and is curved upward in the starting state shown in FIG. 2. For holding on the body opening, the sealing and holding body 10 is inserted into the body opening, wherein the latching hooks 22 first of all, by deformation inward, move past the edge of the body opening and subsequently, with deformation back outward, lie in a latching manner against the upper side 26 of the inner body part 28 bounding the body opening (see FIGS. 4 to 6). From the opposite lower side 30 of the body part 28, the first sealing lip 24 is placed against the body part, as can be seen in turn in FIGS. 4 to 6, wherein, for illustrative reasons, the first sealing lip 24 is illustrated above the body part. The first elastic sealing lip 24 is actually slightly deformed in relation to its inoperative shape when lying against the lower side 30.

(11) Furthermore, the sealing and holding body 10 has a second holding ring 32 composed of the same plastic as the first holding ring 20, wherein the second holding ring 32 is provided with latching cutouts 34 for latching against corresponding latching projections of the housing body 12. An annular second sealing lip 36 is integrally formed on the second holding ring 32. The second sealing lip 36 is composed of the same softer plastic as the first sealing lip 24 and is likewise elastic. In the state mounted on the housing body 12, said sealing lip is placed, with a slight deformation from its inoperative position, in a sealing manner against the outer side of the housing body 12, as can be seen in turn in particular in FIGS. 4 to 6. Again, the second sealing lip 36 is illustrated above the cup-shaped wall of the housing body 12 in FIGS. 4 to 6 for graphical reasons.

(12) Furthermore, the first holding ring 20 and the second holding ring 32 are connected to each other via a compensating ring 38 made of an elastically softer plastic. In the example shown, the second sealing lip 36 and the compensating ring 38 are connected integrally to each other and are composed of the same material. The sealing and holding body 10 is composed overall only of two different plastics materials and can therefore be produced in a simple manner in a two-component injection-molding process.

(13) Furthermore, in the passage opening formed by the cup-shaped housing body 12, a holding portion 40 composed of a flexible plastic which is softer than the housing body 12 is integrally formed on the housing body 12, for example in a two-component injection-molding process. The holding portion 40 forms an annular receptacle 42 for a tank filler pipe to be inserted in the passage opening. The holding portion 40 can have a further annular receptacle for the insertion of a further tank filler pipe. It is therefore possible, for example, for a tank filler pipe to be provided for refueling the motor vehicle with fuel and for a second tank filler pipe to be provided for refueling the motor vehicle with a urea solution (Adblue).

(14) In the example shown, the latching hooks 22 are each formed by cutouts in the wall of the first holding ring 20, wherein said cutouts are filled with the soft plastics material of the second sealing lip 36, as illustrated at reference sign 44 in the figures. In addition, mounting markings for a fitter can be seen at reference sign 46. Said mounting markings indicate the pressure points for the mounting of the sealing and holding body 10 on the housing body 12.

(15) For the mounting of the filler neck housing arrangement according to the invention, the sealing and holding body 10 can first of all be inserted in a simple manner into the body opening formed by the inner body part, and therefore said sealing and holding body is held on said body opening as explained above. Subsequently, the housing body 12 can be inserted from above through the further body opening of the outer body part and held on the sealing and holding body 10 in the manner explained above. A reverse mounting sequence is also possible. The mounting is simplified and secure sealing is always ensured.

LIST OF REFERENCE SIGNS

(16) 10 sealing and holding body 12 housing body 14 flap housing 16 tank flap 18 latching projections 19 pivot arm 20 first holding ring 22 latching hook 24 first sealing lip 26 upper side of the inner body part 28 inner body part 30 lower side of the inner body part 32 second holding ring 34 latching cutout 36 second sealing lip 38 compensating ring 40 holding portion 42 annular receptacle 44 plastics material 46 mounting markings