AIR VENT FOR A VEHICLE

Abstract

An air vent for a vehicle includes an air duct with an air inlet end and an air outlet end, and a main flow direction, a ball head within the air duct, a damping assembly supported on the ball head, and an annular air-guiding element connected to the damping assembly, for deflecting the air flow from the main flow direction, wherein the air-guiding element is pivotable together with the damping assembly about the ball head, wherein the damping assembly has a ball-socket-shaped damping element surrounding the ball head and composed of a softer material than the ball head, at least one socket element surrounding the damping element in a form-fitting manner and composed of a harder material than the damping element, and the at least one socket element includes clamp arms clamped onto the damping element and extending parallel to a central longitudinal axis of the air-guiding element.

Claims

1. An air vent for a vehicle, comprising an air duct which is bounded by a housing, with an air inlet end and an air outlet end, wherein an air flow flowing through the air duct flows along a main flow direction from the air inlet end to the air outlet end, a ball head arranged within the air duct, a damping assembly supported on the ball head, and an annular air-guiding element which is arranged at the air outlet end and is connected to the damping assembly, for deflecting the air flow from the main flow direction thereof, wherein the air-guiding element is pivotable together with the damping assembly about the ball head, wherein the damping assembly has a ball-socket-shaped damping element which surrounds the ball head and is composed of a softer material than the ball head, at least one socket element which surrounds the damping element in a form-fitting manner at least in sections and is composed of a harder material than the damping element, and the at least one socket element comprises clamping means which clamp onto the damping element and have at least two clamping arms extending parallel to a central longitudinal axis of the air-guiding element.

2. The air vent as claimed in claim 1, wherein the clamping means are composed of metal.

3. The air vent as claimed in claim 1, wherein the clamping means are designed as integral clamps with a head portion from which the clamping arms extend away.

4. The air vent as claimed in claim 1, characterized in that the clamping arms sit nonrotatably on the socket elements by means of a form fit.

5. The air vent as claimed in claim 1, wherein the clamping arms exert a clamping force on the damping element from two mutually opposite sides.

6. The air vent as claimed in claim 5, characterized in that the clamping means comprise at least four clamping arms which lie opposite one another in pairs.

7. The air vent as claimed in claim 1, wherein the damping element is composed of an elastomer.

8. The air vent as claimed in claim 1, characterized in that a bearing component is provided which has a rotatable shaft which extends along a central longitudinal axis of the air duct and at the end of which that faces away from the air outlet end the ball head is arranged, the air vent furthermore comprises a shut-off element which is arranged in the air duct upstream of the air-guiding element and is in engagement with that end of the shaft which faces away from the ball head, wherein the ball head is in engagement with the damping assembly in such a manner that, when the damping assembly is rotated about the central longitudinal axis of the air duct, the shaft is carried along and the shut-off element is adjusted.

9. The air vent as claimed in claim 8, wherein the ball head has at least one pin which protrudes radially outward in a direction perpendicular to the central longitudinal axis and is accommodated in at least one elongate guide groove of the damping assembly, wherein the at least one guide groove substantially extends along a longitudinal axis of the air-guiding element.

10. The air vent as claimed in claim 1, wherein, from an air-guiding ring outwardly bounding the air-guiding element , a plurality of holding arms protrude in the direction of the center of the air-guiding ring and merge into a holding portion, which is arranged in the center of the air-guiding ring, for connection to the damping assembly.

11. The air vent as claimed in claim 10, wherein the clamping arms are formed separately from each other and are prestressed in relation to the at least one socket element by means of the holding portion.

12. An air vent for a vehicle, comprising an air duct bounded by a housing, with an air inlet end and an air outlet end, wherein an air flow flowing through the air duct flows along a main flow direction from the air inlet end to the air outlet end, a ball head arranged within the air duct, a damping assembly supported on the ball head, and an annular air-guiding element arranged at the air outlet end and connected to the damping assembly, for deflecting the air flow from the main flow direction, wherein the air-guiding element is pivotable together with the damping assembly about the ball head, wherein the damping assembly has a ball-socket-shaped damping element surrounding the ball head and composed of a softer material than the ball head, at least one socket element surrounding the damping element in a form-fitting manner at least in sections and composed of a harder material than the damping element, and the at least one socket element comprises first and second clamping arms that clamp onto the damping element, wherein the first and second clamping arms extend parallel to a central longitudinal axis of the air-guiding element.

13. The air vent as claimed in claim 12, wherein the clamping arms are composed of metal.

14. The air vent as claimed in claim 13, wherein the clamping arms are both extend from a common head portion.

15. The air vent as claimed in claim 14, wherein the clamping arms sit non-rotatably on the socket elements with a form fit engagement.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] An exemplary embodiment of the invention is explained below with reference to figures, in which:

[0025] FIG. 1 shows an air vent according to the invention with an air control device, which is arranged inside the air duct, in a perspective rear view,

[0026] FIG. 2 shows the air control device from FIG. 1 in a perspective rear view,

[0027] FIG. 3 shows the damping assembly and the bearing component from FIG. 2 in an exploded illustration,

[0028] FIG. 4 shows the clamping means from FIG. 3 in a perspective rear view,

[0029] FIG. 5 shows the damping assembly from FIG. 3 in an assembled state,

[0030] FIG. 6 shows a detail of the air control device from FIG. 2 without bearing component and without damping element and without socket element,

[0031] FIG. 7 shows the illustration from FIG. 6 together with damping element and socket elements, and

[0032] FIG. 8 shows the illustration from FIG. 7 together with bearing component.

[0033] Unless stated otherwise, the same reference signs denote the same objects in the figures.

DETAILED DESCRIPTION

[0034] FIG. 1 shows an air vent 100 according to the invention with a housing 102 and an air duct 104, which is bounded by the housing 102 and through which a central longitudinal axis ML of the housing extends. The air duct 104 has an air inlet end 106 and an air outlet end 108, wherein an air flow can flow through the air duct 104 along a main flow direction H from the air inlet end 106 to the air outlet end 108. At the air outlet end 108, an air control device 10 is arranged inside the air duct 104 and is mounted on the housing 102 via a bearing component 50. In addition, a shut off element 70 which will also be explained later is apparent.

[0035] FIG. 2 shows the air control device 10, comprising a cylindrical air guiding element 12, a damping assembly 20 and also the bearing component 50. The air guiding element 12 has an air guiding ring 14 which is curved on the outer circumference and has an air outlet opening 15. The air guiding ring 14 here is in the form of a circular ring. From an inner wall 16 of the air guiding ring 14, two holding arms 17 extend from two opposite sides in the direction of the center of the air guiding ring 14, the center lying on the central longitudinal axis ML, wherein the holding arms 17 merge into a holding portion 18 arranged in the center of the air guiding ring 14. The air guiding element 12 is held on a ball head 54 of the bearing component 50 via a damping assembly 20 arranged inside the holding portion 18, as will also be explained later.

[0036] The damping assembly 20 comprises, as can be seen in particular in FIG. 3, a damping element 22 in the shape of a ball socket, two socket elements 24, 24 and clamping means 26. As can likewise be seen in FIG. 3, the bearing component 50 comprises a shaft 52 which, at one end, has a ball head 54 with two pins 56 extending radially from opposite sides, and, at the opposite end, has a connecting portion 58.

[0037] In a mounted state, the ball head 54 is accommodated inside the damping element 22, wherein the pins 56 each pass through an elongate pin opening 30 of the damping element 22 (only one pin opening 30 can be seen in FIG. 3). In the mounted state, the damping element 22 is in turn surrounded at least in portions by the socket elements 24, 24. The damping element 22 is composed of a softer material, for example silicone, than the ball head 54 and then the socket elements 24, 24. In the mounted state, the pins 56 of the ball head 54 are each accommodated in a guide groove 32, of which only one can be seen in FIG. 3. The guide grooves 32 extend along curved paths on the inner sides of the socket elements 24, 24 and run substantially along a longitudinal axis L of the air guiding element 12, which longitudinal axis lies on the central longitudinal axis ML in the neutral position of the air guiding element that is shown in the figures. The socket elements 24, 24 are clamped onto the damping element 22 by the clamping means 26. The clamping means 26 therefore clamp the damping element 22 onto the ball head 54.

[0038] The clamping means are designed here as a clamp 26, wherein the clamp 26 has a head portion 27 and four clamping arms 28, 28 which extend in pairs from the head portion 27 at a right angle. In the mounted state, the head portion 27 lies flat against the damping element 22 and against the socket elements 24, 24. The clamping arms 28 lie here against an outer side of the socket element 24 and the clamping arms 28 against an outer side of the socket element 24. The clamping arms 28 and the clamping arms 28 are each spaced apart from one another and, in the mounted state, each accommodate latching projections 34 between them, wherein only one latching projection can be seen in the figures. This forms a form fit by means of which the clamp 26 sits nonrotatably on the socket elements 24, 24. In FIG. 4, the clamp 26 is illustrated in a rear view for illustrative purposes. FIG. 5 shows the assembled state of the damping assembly 20.

[0039] The damping element 22 furthermore has outwardly protruding spacer elements 36 which, in a mounted state of the damping assembly 20, space the socket elements 24, 24 from each other, as can be seen in particular in FIG. 5. This ensures that the socket elements 24, 24 which are composed of a harder material do not lie against each other, but rather lie against the damping element 22. Only in this way can the effect be achieved that the damping element 22 is pressed onto the ball head 54 by means of the clamp 26 via the socket elements 24, 24.

[0040] The holding arms 17 and the holding portion 18 of the air guiding element 12 can be seen in FIGS. 6 to 8. In the illustration in FIG. 6, the clamp 26 and also a screen 60 are accommodated in the holding portion 18. The screen 60 has a front 62 which, in the mounted state of the air vent, faces a vehicle interior, a projection 64 extending along the central longitudinal axis ML into the holding portion 18, and two latching arms 66 likewise extending into the holding portion 18. In the mounted state, the latching arms 66 reach with their latching lugs behind the latching projections 34 of the socket elements 24, 24 and thus hold the socket elements 24, 24 together with the damping element 22 held therein in the holding portion 18. This can be seen in FIG. 7. The projection 64 of the screen 60 reaches here through a passage opening 29 of the clamp 26 and a passage opening 31 of the damping element 22. The guide groove 32 of the socket element 24 and the pin opening 30 of the damping element 22 can also be seen in FIG. 7. Finally, the bearing component 50 is also inserted into the holding portion 18 in FIG. 8. The pins 56 of the ball head 54 engage here in the guide grooves 32 in the manner explained above.

[0041] The air guiding element 12 can now firstly be pivoted about any axes lying in the y z plane and secondly can be rotated about the x axis. The air guiding element 12 can be gripped for this purpose at the holding frame 17 or the holding portion 18 by a person in the vehicle interior. During pivoting of the air guiding element 12, the damping assembly 20 is also moved via the holding portion 18, while the bearing component 50 remains with its ball head 54 in its position. The movement of the damping element 22 in relation to the ball head 24 is damped on the basis of the clamping force applied by the clamp 26. The clamping force arises here by means of the clamping arms 28, 28 held on the head portion 27. In addition, a clamping force also arises by the clamping of the clamping arms 28, 28 between the holding portion 18 and the socket elements 24, 24. A braking frictional force therefore acts between damping element 22 and ball head 54. An operating force to be applied by the operator is defined by said frictional force. The air guiding element consequently serves as an operating element.

[0042] On account of the clamping means according to the invention, this frictional force and therefore the operating force remain constant for a long period of time since the clamping arms act as leaf springs and therefore maintain their clamping force for a particularly long time. In addition, clamping of this type is stable even in the event of a wide variety of temperatures prevailing in the air duct. In particular in a refinement composed of metal, the clamp is particularly heat resistant. An inadvertent adjustment of the air guiding element by, for example, the air flow or by forces occurring during the operation of the vehicle thus also do not occur.

[0043] If the air guiding element is rotated about the x axis, not only does the damping assembly 20 move, but so too does the shaft 52. This is because the pins 56 of the ball head 54, the pins being accommodated in the guide grooves 32 of the socket elements 24, 24, are carried along by the boundaries of the guide groove 32. By rotation of the shaft 52, the shut off element 70 which lies upstream in the air duct and is illustrated in FIG. 1 can be adjusted. In this case, the shaft 52 engages in a cone gearwheel 72 by means of the connecting portions 58. The cone gearwheel 72 is in turn in engagement with one flap element 76 each via a respective gearwheel 74. The flap elements 76 form a butterfly flap. By rotation of the shaft 52, the cone gearwheel 72 moves the two gearwheels 74 in opposite directions and therefore pivots the flap elements 76 into a closed position or into the open position, shown in FIG. 1, depending on the direction of rotation. By rotation of the air guiding element, the air duct can thus be opened or closed or the air flow throttled.

[0044] Aspects of the invention include those in the following paragraphs A-K.

[0045] A. An air vent for a vehicle, comprising: an air duct (104) which is bounded by a housing (102), with an air inlet end (106) and an air outlet end (108), wherein an air flow (L) flowing through the air duct (104) flows along a main flow direction from the air inlet end (106) to the air outlet end (108), a ball head (54) arranged within the air duct (104), a damping assembly (20) supported on the ball head (54), and an annular air-guiding element (12) which is arranged at the air outlet end (108) and is connected to the damping assembly (20), for deflecting the air flow (L) from the main flow direction thereof, wherein the air-guiding element (12) is pivotable together with the damping assembly (20) about the ball head (54), wherein the damping assembly (20) has a ball-socket-shaped damping element (22) which surrounds the ball head (54) and is composed of a softer material than the ball head (54), at least one socket element (24, 24) which surrounds the damping element (22) in a form-fitting manner at least in sections and is composed of a harder material than the damping element (22), and the at least one socket element (24, 24) comprises clamping means (26) which clamp onto the damping element (22) and have at least two clamping arms (28, 28) extending parallel to a central longitudinal axis (L) of the air-guiding element (12).

[0046] B. The air vent of A, wherein the clamping means (26) are composed of metal.

[0047] C. The air vent of A or B, wherein the clamping means are designed as integral clamps (26) with a head portion (27) from which the clamping arms (28, 28) extend away.

[0048] D. The air vent of any one of A-C, characterized in that the clamping arms (28, 28) sit nonrotatably on the socket elements (24, 24) by means of a form fit.

[0049] E. The air vent of any one of A-D, wherein the clamping arms (28, 28) exert a clamping force on the damping element (22) from two mutually opposite sides.

[0050] F. The air vent of E, characterized in that the clamping means (26) comprise at least four clamping arms (28, 28) which lie opposite one another in pairs.

[0051] G. The air vent of one of A-F, wherein the damping element (22) is composed of an elastomer.

[0052] H. The air vent of one of A-G, characterized in that a bearing component (50) is provided which has a rotatable shaft (52) which extends along a central longitudinal axis (ML) of the air duct (104) and at the end of which that faces away from the air outlet end (108) the ball head (54) is arranged, the air vent furthermore comprises a shut-off element (70) which is arranged in the air duct (104) upstream of the air-guiding element (12) and is in engagement with that end of the shaft (52) which faces away from the ball head (54), wherein the ball head (54) is in engagement with the damping assembly (20) in such a manner that, when the damping assembly (20) is rotated about the central longitudinal axis (ML) of the air duct (104), the shaft (52) is carried along and the shut-off element (70) is adjusted.

[0053] I. The air vent of H, wherein the ball head (54) has at least one pin (56) which protrudes radially outward in a direction perpendicular to the central longitudinal axis (ML) and is accommodated in at least one elongate guide groove (32) of the damping assembly (20), wherein the at least one guide groove (32) substantially extends along a longitudinal axis (L) of the air-guiding element (12).

[0054] J. The air vent of any one of A-I, wherein, from an air-guiding ring (14) outwardly bounding the air-guiding element (12), a plurality of holding arms (17) protrude in the direction of the center of the air-guiding ring (12) and merge into a holding portion (18), which is arranged in the center of the air-guiding ring (12), for connection to the damping assembly (20).

[0055] K. The air vent of J, wherein the clamping arms (28, 28) are formed separately from each other and are prestressed in relation to the at least one socket element (24, 24) by means of the holding portion (18).

LIST OF REFERENCE SIGNS

[0056] 10 Air control device

[0057] 12 Air guiding element

[0058] 14 Air guiding ring

[0059] 15 Air outlet opening

[0060] 16 Inner wall

[0061] 17 Holding arms

[0062] 18 Holding portion

[0063] 20 Damping assembly

[0064] 22 Damping element

[0065] 24, 24 Socket elements

[0066] 26 Clamping means/clamp

[0067] 27 Head portion

[0068] 28, 28 Clamping arms

[0069] 29 Passage opening

[0070] 30 Pin opening

[0071] 31 Passage opening

[0072] 32 Guide grooves

[0073] 34 Latching projections

[0074] 36 Spacer elements

[0075] 50 Bearing component

[0076] 52 Shaft

[0077] 54 Ball head

[0078] 56 Pin

[0079] 58 Connecting portion

[0080] 60 Screen

[0081] 62 Screen front

[0082] 64 Projection

[0083] 66 Latching arms

[0084] 70 Shut off element

[0085] 72 Cone gearwheel

[0086] 74 Gearwheel

[0087] 76 Flap elements

[0088] 100 Air vent

[0089] 102 Housing

[0090] 104 Air duct

[0091] 106 Air inlet end

[0092] 108 Air outlet end

[0093] H Main flow direction

[0094] L Longitudinal axis of air guiding element

[0095] ML Central longitudinal axis