Roller blind arrangement for a motor vehicle
阅读说明:本技术 用于机动车辆的卷帘结构 (Roller blind arrangement for a motor vehicle ) 是由 D·舒勒 T·弗里茨 S·格林 U·施赖伯 A·罗克尔曼 M·里格 于 2018-05-15 设计创作,主要内容包括:本发明涉及一种用于机动车辆的卷帘结构,该卷帘结构包括:卷帘帘幅(16),所述卷帘帘幅在其侧向边缘处在卷帘的纵向中心平面的每一侧上具有引导带(28A);卷轴(20),卷帘帘幅(16)可卷绕在所述卷轴上或卷帘帘幅(16)可从所述卷轴展开,所述卷轴包括柔性的中空管结构(30),所述中空管结构被附接至车辆的安装梁(22)穿过并包括柔性的中间管(32),所述中间管在两端以共同旋转的方式设有支承衬套(36A),卷帘帘幅(16)的各个引导带(28A)附接到相应的支承衬套。支承衬套(36A)中的至少一个可相对于中间管(32)沿中空管的纵向方向移位。(The invention relates to a roller blind structure for a motor vehicle, comprising: a roller blind web (16) having guide strips (28A) at its lateral edges on each side of a longitudinal center plane of the roller blind; -a roller (20) on which the roller blind web (16) can be wound or from which the roller blind web (16) can be unwound, comprising a flexible hollow tube structure (30) which is passed through by a mounting beam (22) attached to the vehicle and comprises a flexible intermediate tube (32) which is provided at both ends in a co-rotating manner with a support bush (36A), to which respective guide strips (28A) of the roller blind web (16) are attached. At least one of the support bushes (36A) is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube (32).)
1. A roller shade structure (14) for a motor vehicle, the roller shade structure comprising: a roller blind web (16) having guide strips (28A, 28B) at its lateral edges on each side of a longitudinal center plane of the roller blind; -a roller (20) on which the roller blind web (16) can be wound or from which the roller blind web (16) can be unwound, which roller comprises a flexible hollow tube structure (30), which hollow tube structure (30) is passed through by a mounting beam (22) attached to the vehicle and comprises a flexible intermediate tube (32) which is provided at both ends in a co-rotating manner with a support bushing (36A, 36B), to one of which support bushings (36A, 36B) each guide strip (28A, 28B) of the roller blind web (16) is attached, characterized in that at least one of the support bushings (36A, 36B) is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube (32).
2. Roller shutter construction (14) according to claim 1, characterized in that the hollow tube construction (30) is provided with a coupling element (34A, 34B) which is connected to the intermediate tube (32) in a co-rotating manner, the coupling element (34A, 34B) connecting a bearing bush (36A, 36B) which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube (32).
3. Roller shutter construction (14) according to claim 1, characterized in that the support bushing (36A, 36B) comprises at least one guide element which engages into a coupling element (34A, 34B) or a guide track (52) of the intermediate tube.
4. Roller shutter structure (14) according to claim 3, characterized in that the guide elements are formed by hook-like guide tabs (48) with restoring force.
5. Roller shutter construction (14) according to claim 1, characterized in that the bearing bushing (36A, 36B) which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube (32) has an outer contour (46), the outer contour (46) engaging into the coupling element (34A, 34B) or the inner contour of the intermediate tube.
6. Roller shutter structure (14) according to claim 1, characterized in that the bearing bush (36A) which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube (32) has an annular collar (56), via which annular collar (56) the bearing bush (36A) is supported on a support surface attached to the vehicle.
7. Roller shade structure (14) according to claim 1, characterized in that the roller tube (20) comprises a coil spring (62), which coil spring (62) is connected at one side to the mounting beam (22) and at the other side to the hollow tube structure (30).
8. Roller shutter structure (14) according to claim 7, characterized in that the winding spring (62) is attached to a support bush (36A) which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube (32).
9. Roller shutter structure (14) according to claim 1, characterized in that the mounting beam (22) is curved.
Technical Field
The present invention relates to a roller blind construction having the features of the preamble of claim 1.
Background
Such roller blind structures are known in practice and are used for screening transparent roof sections in motor vehicles, which are formed, for example, by the glass cover of a sun roof structure. To this end, the roller blind structure comprises, as a screening element, a roller blind web, which can be made of woven fabric, knitted fabric, film or the like, and which can be wound on or unwound from a roller shaft in order to screen the relevant transparent vehicle part. The roller may comprise a curved mounting beam attached to the vehicle, which is surrounded by a flexible hollow tube structure to which the roller blind web is connected at its edges extending in the transverse direction of the roller blind. The hollow tube structure comprises an intermediate tube which forms the central part and is realized, for example, as a bellows and which is provided at both ends on each side of the longitudinal center plane of the roller blind with a support bushing which is mounted in a rotating manner. The roller blind web is provided on its lateral edges with guide strips, each of which is guided in a guide rail attached to the vehicle and is attached to one of the support bushings. For winding the laterally guided roller blind web, the winding shaft comprises a winding spring which preloads the bearing sleeve and the intermediate tube in the winding direction. This ensures that the roller blind web is automatically wound onto the roller shaft when the pull rod attached to the front side of the roller blind web facing away from the roller shaft is released.
The intermediate tube of the hollow tube structure of the reel may consist of a plastic tube. Fluctuations in temperature and/or humidity may cause a change in the length of the hollow tube structure, which may damage the connection between the roller blind web and the roller shaft. Furthermore, the resulting stress may lead to an increased actuation force or even to a blockage of the lateral guiding mechanism. The spring force exerted by the winding spring, in particular acting on only one of the two bearing bushes, may also cause rippling and/or wrinkling of the roller blind web and excessive one-sided wear.
Disclosure of Invention
It is an object of the present invention to provide a roller blind structure of the type specified above, in which the stresses in the region of the roller tube due to temperature and/or humidity fluctuations are reduced.
According to the invention, this object is achieved by a roller blind structure having the features of claim 1.
The invention proposes a roller blind structure in which the roller shaft comprises a hollow tube structure with lateral support bushes, at least one of which is displaceable in the axial direction relative to a flexible intermediate tube, so that length variations of the intermediate tube due to temperature and/or humidity can be compensated without introducing any excessive stresses in the roller blind web and without any adverse effect on the function of the roller blind structure. At least one bearing bush, which is axially displaceable relative to the intermediate pipe, is connected to the intermediate pipe, in particular via an axial sliding connection. The sliding connection makes length compensation possible. At the same time, torsional moments can be transmitted between the intermediate tube and the bearing bush, since they are connected for common rotation.
In a preferred embodiment of the roller blind structure according to the invention, for connecting the support bushing to the intermediate tube realized as a plastic tube, for example, the hollow tube structure is provided with a coupling element which is connected to the intermediate tube in a co-rotating manner and which connects the support bushing displaceable relative to the intermediate tube in the longitudinal direction of the hollow tube to the intermediate tube. The coupling element, which may be realized as a plastic overmold of the intermediate tube, forms a sliding fit for the bearing bush that forms the compensation element.
The support bushing, which is displaceable in the longitudinal direction with respect to the intermediate tube, may be arranged at both ends of the intermediate tube or only provided at one end of the intermediate tube. Thereby, length compensation is achieved on both sides or on one side.
In a particular embodiment of the roller blind structure according to the invention, the bearing bushing has a guide element which engages into a guide track of the coupling element or the intermediate tube in order to clearly define the position of the bearing bushing relative to the intermediate tube and also to define the maximum stroke between the bearing bushing and the intermediate tube. The length of the guide track defines the maximum stroke.
The guide element preferably also serves to ensure that the support bushing is firmly connected to the intermediate pipe. For this purpose, the guide element can be formed by a hook-like guide tab with restoring force, the hook of which engages into a guide track of the coupling element or intermediate tube.
The hook-shaped restoring-force guide tab preferably has a ramp or ramp which facilitates the introduction of the support bushing into the coupling element or intermediate tube of the hollow tube structure by elastically deforming the guide tab during assembly.
In an advantageous embodiment of the roller blind structure according to the invention, the bearing bush, which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube, has an outer contour which engages into a corresponding inner contour of the coupling element or of the intermediate tube in order to ensure a co-rotational arresting of the bearing bush in the coupling element or in the intermediate tube. Alternatively, the torsional moment can be transmitted between the bearing bush and the intermediate tube only via the above-mentioned at least one guide tab, which is limited in the guide track of the coupling element or the intermediate tube and, in particular, has no play in the circumferential direction of the bearing bush.
In general, one guide tab can be provided which engages into the guide track of the coupling element, or a plurality of guide tabs can be provided which are distributed circumferentially and each engage into the guide track of the coupling element.
Preferably, the position of the bearing bushing on the mounting beam attached to the vehicle is clearly defined. For this purpose, the bearing bush, which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube, can have an annular collar via which the bearing bush is supported on a support surface attached to the vehicle, which can be formed, for example, on the mounting beam.
In a particular embodiment of the roller blind structure according to the invention, the support bushing, which is displaceable in the longitudinal direction of the hollow tube relative to the intermediate tube, is also used for attaching a wrap spring which is connected at one side to the mounting beam, i.e. to a member attached to the vehicle, and at the other side to the hollow tube structure. For this purpose, the bearing bush preferably has a recess and/or a projection which enables the mounting of the wrap spring.
Alternatively or additionally, the lateral guide strip of the roller blind web can be realized as a constant force spring and the winding of the roller blind web onto the winding shaft can be realized.
In particular, the mounting beam surrounded by the hollow tube structure is curved, which means that the roller blind web can have a curvature in its extended state, which follows the curvature of the vehicle roof in the transverse direction of the vehicle roof. In this case, the hollow tubular structure is also curved.
The roller blind web is preferably connected to the intermediate tube at the edges extending in the transverse direction of the roller blind, in particular at a central part of the intermediate tube or at multiple points along the intermediate tube, the roller blind web being fixedly attached or the roller blind web being freely movable in the transverse direction of the roller blind, for example by means of a groove/edge strip connection.
The roller blind structure according to the invention may be a roller blind structure for screening a transparent roof portion of a motor vehicle. For example, the roller blind structure may be part of a sun roof structure having a displaceable transparent cover element by means of which a roof opening of the vehicle in question can be closed. In this case, the roller blind structure thus forms a so-called sun blind structure.
Other advantages and advantageous embodiments of the inventive subject matter are apparent from the description, the drawings, and the claims.
Drawings
A preferred embodiment of the roller blind structure according to the invention is shown in a schematically simplified manner in the drawings and will be explained in more detail in the following description.
Fig. 1 is a top view of a vehicle roof having a roller blind structure according to the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view through a roller tube of a roller shade structure;
FIG. 3 is a perspective top view of a first support region of the spool;
FIG. 4 is a perspective top view of a second support region of the spool;
FIG. 5 is a bottom perspective view of the first support area;
FIG. 6 is a bottom perspective view of the second support area;
FIG. 7 is a top view of the first support region;
FIG. 8 is a top view of the second support region;
FIG. 9 is a longitudinal cross-sectional view through the first support area along line IX-IX in FIG. 7;
FIG. 10 is a longitudinal cross-sectional view through the second support region taken along line X-X in FIG. 8;
FIG. 11 is a perspective top view of a support sleeve of the first support region;
fig. 12 is another perspective view according to fig. 11, showing the bearing bushing in a position rotated by 180 °; and
fig. 13 is a perspective top view of a support bushing of the second support region.
Detailed Description
The figures show a
The
In addition, the
In addition to the bearing
The bearing
Furthermore, the
The bearing
As is evident from the above description and the drawings, the bearing
As can be seen from fig. 9 and 12, in particular, the bearing bush 36 has in its circumferential direction a mounting 60, which mounting 60 delimits a nose-like projection and serves for mounting a
The bearing
Reference numerals
10 vehicle roof
12 roof opening
14 rolling shutter structure
16 rolling curtain breadth
18 draw bar
20 reel
22 mounting beam
24A, B support element
26A, B guide rail
28A, B guide belt
30 hollow tube structure
32 middle tube
34A, B coupling element
36A, B support bushing
38A, B bearing journal
40 center tube
42 connecting pin
44 fixed pin
46 outer contour
48 guide tab
50 hook part
52 guide rail
54 lead-in ramp
56 Ring gasket
58 ring shaped gasket
60 mounting part
62 wrap spring
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