DE102015201778A1 - Roller blind system for covering a cargo space and motor vehicle with such a roller blind system - Google Patents

Abstract

A roller blind system (20) for covering a loading space (12) is proposed. The roller blind system (20) comprises a winding shaft (22), a flexible fabric (24) which can be wound thereon and be developed to cover the loading space (12) and a pull-out rod (26) attached to a distal end (24a) of the fabric (24). The roller blind system (20) further comprises opposite sides of the loading space (12) guide rails (30) with an open guide channel (3) for guiding the pull-out rod. The guide channel (32) has at least one tapered channel section (34) for blocking the movement of the extension rod (26), which is formed by a fixed wall surface (34a) of the guide channel and a counter surface (34b) deflectable transversely to the extension direction. The deflectable counter surface (34b) is subjected to a force in the direction of the fixed wall surface (34a) by a leaf spring (40) extending in the extension direction (2) of the guide rail (30). Furthermore, a motor vehicle (10) with such a roller blind system (20) is proposed.

Description

AREA OF APPLICATION AND PRIOR ART

The invention relates to a roller blind system for covering a cargo space and a motor vehicle with such a cargo space including roller blind system.

Roller blind systems for covering cargo spaces are generally known in the automotive sector. You have genus typical about a winding shaft with this abwickelbarem fabric, which can be unwound as intended in the vehicle longitudinal direction to the rear to substantially horizontally extending the cargo space to close a cargo compartment door of the vehicle opaque.

In addition to all-electric systems and manual systems are known in which the extraction of the pull-out bar at the end of the fabric is done manually. In an extended end position this pull-out rod is latched to the guide rail. To release the pull-out rod, to wind the sheet back on the winding shaft, most common shade systems for the load compartment cover use an attached to the extension rod end. This end board protrudes in the extension direction further to the rear than the fabric itself. It serves primarily the purpose of achieving full coverage of the cargo hold even if the cargo door has an outwardly domed cambered shape. Nevertheless, to span the gap between the extension rod and the corresponding curvature on the inside of the cargo compartment lid, this end board is provided with a usually curved end edge.

In the context of handling, the endboard is used to thereby release a latching connection between the extension rod and the guide rail. For this purpose, the tailboard is manually pivoted about an axis extending in the vehicle transverse direction downwards and thereby releases the pull-out rod from the catch. From a winding spring, which is associated with the winding shaft, the sheet can then be wound up.

In this context, as state of the art on the FR 2 992 604 A1 directed.

However, the concept with the endboard has some disadvantages. In particular, the roller blind system thereby becomes more spacious in a jam condition, resulting in consequential problems.

TASK AND SOLUTION

The object of the invention is therefore to develop a roller blind system to the effect that a manufacturing technology cheaper and functionally reliable mechanism is created, which allows a comfortable release even without the existence of an endboard and a pivoting of the pull-out rod.

This is achieved by a roller blind system according to claim 1 according to the invention.

This roller blind system comprises the genus-typical components of the winding shaft, the flexible fabric which can be wound thereon and can be developed therefrom, and the pull-out rod at the distal end of the fabric. The attachment of the pull-out rod on the fabric can be done in various ways. For example, the pull-out rod can be surrounded by an end-side loop of the fabric.

The roller blind system according to the invention furthermore has two guide rails arranged on opposite sides of the loading space, which have an open guide channel facing one another, in which the two-sided ends of the extension rod are guided.

The winding shaft is usually provided in the vehicle longitudinal direction in front of the guide rails. The fabric moves when unwinding in the vehicle longitudinal direction to the rear.

To block the movement of the extension rod in the winding direction within the guide channels, these guide channels each have a tapered channel section. This tapered channel portion is formed by two opposing surfaces, namely a fixed wall surface of the guide channel and an opposite transverse to the main extension direction of the guide channel deflectable counter surface. These two surfaces are so close together without external application of force that the respective outer end of the extension rod can not pass without deflection of the counter surface.

In order to move the pull-out rod out of the defined holding position beyond the tapered channel section, it requires the deflection of the mating surface. The winding spring of the winding shaft alone does not exert sufficient force to pass the extension rod with simultaneous deflection of the counter surface through the tapered channel section. This counter surface is subjected to force in the direction of the fixed wall surface by a leaf spring extended in the main extension direction of the guide rail.

In a roller blind system according to the invention, the guide rails are thus formed in a structurally very simple manner to the extent that they are capable of introducing an external release force, the pull-out rod against the force of a coil spring of the shade system and against the force of vehicle operation usually to keep occurring vibrations. For this purpose, said leaf spring is provided as part of the guide rail, which extends parallel to the main extension direction of the guide rail and is fastened with one end to a fixed portion of the guide rail. The opposite end is provided on said opposite surface.

This design is not only very simple and inexpensive, but has also proven to be very reliable. In addition, this design allows to make a very compact in particular with regard to the height of the guide rail. Based on the installation situation, a guide rail can be achieved, which also in the region of the tapered channel section does not exceed a height of about 20 mm. This can represent a significant advantage depending on the specific structural conditions of the vehicle.

The fixed wall surface is preferably formed by a component of the guide rail, which also forms the guide channel beyond the tapered channel section. Preferably, the guide channel in the region of the tapered channel portion on the side of the fixed wall surface is not particularly designed. The fixed wall surface is therefore preferably only a portion of the continuous planar wall surface of the guide channel.

The opposite mating surface may be formed by a separate from the leaf spring component, which is connected to the leaf spring. Thus, in particular a plastic portion may be attached to the end of the leaf spring to form the counter surface, which is formed of the same material as the guide rail. This can be an advantage both with regard to the haptic perception during operation of the system and with regard to the aesthetic insertion into the motor vehicle interior.

In a different design, however, the mating surface may also be formed by a surface integrally connected to the leaf spring. This eliminates a component and a corresponding assembly or manufacturing step. In such a design, a type of bend is preferably provided in the leaf spring, which forms the counter surface.

In principle, it is considered advantageous if the leaf spring is a metallic component, in particular a component made of spring steel, in order thereby to avoid relaxation phenomena over the long service life of a motor vehicle. The same purpose is to provide a bendable between the guide rail and the counter surface area of the leaf spring, which is at least 20 mm in length, to allow even a small deformation of the leaf spring sufficient to guide the pull-out rod through the tapered channel section. The bendable region of the leaf spring is formed in a design according to the invention at least substantially parallel to the main extension direction of the guide rail (+/- 20 °).

The guide rails themselves are usually made of plastic, at least in the region of the guide channel. In a particular, but not preferred design, the leaf spring could also be a plastic part and, in a particularly simple design even be integral with the main component of the guide rail, which forms the guide channel.

The leaf spring is guided at least on the side of the guide rail either at two spaced support points or over a longer support distance (> = 5 mm) in order to force that a deflection of the counter surface is associated with a bending deformation of the leaf spring. Also on the side of the opposite portion are preferably provided according to at least two bases or a longer support distance (> = 5 mm), to which the leaf spring is fixedly attached to the counter portion. The aforementioned bendable region is provided between the two-sided support sections or support points.

Since the arrangement of the tapered channel portion is preferably such that the pull-out rod can be fixed in a rear end position with unwound fabric, this tapered holding portion is preferably also provided at the end of the guide channel.

It is particularly advantageous if the leaf spring is fastened on the winding side closer to the guide rail on the fixed part of the guide rail. This also promotes the compact design, since the pull-out rod can be guided almost to the end of the guide rail and can be fixed there.

Due to the fact that the extension rod does not have to be rotatable as intended in order to allow unlatching, it is possible to adapt the extension rod to a clear width of the guide channel in such a way that it can not rotate in the guide channel is. It is also possible that the extension rod has a vertical extension of its projecting into the guide channel end, which corresponds to at least 90% of the clear width of the guide channel. The clear width here refers in each case to sections of the guide channel away from the tapered channel sections, ie to the unchangeable predetermined by the guide channel clear width.

These measures are also suitable to make a very compact in particular in the vertical direction guide rail. The guide channel can be designed with a small clearance.

The pull-out rod, the tapered channel portion and the leaf spring are preferably matched to each other in such a way that it requires a force of at least 3 Newton to move the pull-out rod against the force of the leaf spring through the tapered channel portion. This force refers to each guide rail taken by itself and continue to a given in addition to the restoring force of the coil spring force. This force in the direction of the winding shaft is applied as intended by an operator who can solve this on both sides by a short push against the pull rod. The statement of 3 Newton states that the pull-out rod, when subjected to a total force of 6 Newton in the longitudinal direction on the winding shaft, is able to simultaneously pass through the tapered channel sections respectively provided in the two-sided guide rails.

In a roller blind system according to the invention, in each case at least one tapered channel section of the type described is present in the two guide channels in order to allow the extension rod to be fixed in a defined position. However, a design in which at least two tapered channel sections are provided for blocking the pull-out rod in at least two different pull-out states is advantageous. As a result, semi-open positions of the roller blind system can be realized, which may be desired depending on the application.

The described roller blind system is preferably configured without an end board, so that the pull-out rod, if appropriate through the wrapping around the sheet, forms the rear end. Thus, the rear end edge, which is defined by the pull-out rod, in a roller blind system according to the invention, preferably along the vehicle transverse direction straight.

The application of such a roller blind system for the cargo space of a motor vehicle is therefore particularly suitable for the following cases.

Thus, the use of this roller blind system for a particularly advantageous if for the compensation of the missing curved Endbords a load compartment door of the cargo space of certain design, namely also has a rectilinear end edge facing inwards and forming a non-interfering gap of 30 mm maximum and preferably a maximum of 20mm is applied in the fully extended fabric parallel to the end edge formed by the pull-out rod. Thus, the cargo space can in turn be largely completely and opaque closed by this rectilinear end edge on the load compartment lid and the rectilinear end edge at the end of the flexible sheet.

Also, the use of the roller blind system in motor vehicles, in which the winding shaft, in particular as part of a winding shaft cassette with integrated winding shaft, is variable in position between a useful position and a jam position and provided for receiving the winding shaft or the cassette with winding shaft a storage compartment in the cargo compartment ,

Systems with a bulky endboard are problematic here, since they force a significant increase in the storage compartment. The displaceability of the winding shaft or the entire cassette with winding shaft preferably takes place along a likewise provided in the cargo space vertically acting guide system. The storage compartment for arranging the winding shaft in its stowed position is preferably a storage compartment accessible from above in the load compartment floor.

BRIEF DESCRIPTION OF THE DRAWINGS

Further aspects and advantages of the invention will become apparent from the claims and from the embodiments described below, by means of which the invention will be explained again.

1a and 1b show here a motor vehicle according to the invention with a roller blind system according to the invention in its use state and its storage condition.

2 shows the load compartment of the motor vehicle according to the 1a and 1b in a schematic plan view.

3a and 3b show in a detailed view of the operation of the guide rail and provided thereon tapered channel portion for holding a pull-out rod.

4 and 5 show alternative embodiments of such a guide rail.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The 1a and 1b show in a side view of a motor vehicle 10 which has a loading space 12 features. To cover this cargo space 12 is a roller blind system 20 provided, the main components of a winding shaft 22 inside a winding shaft cassette 21 , a fabric 24 and one the sheet 24 at the distal end final extension rod 26 are.

The winding shaft cassette 21 is between a stowage position in a storage compartment 16 represented in 1b , and a payload, shown in 1a , vertically movable. In the payload position of the reel shaft cassette 21 can the sheet 24 from the winding shaft 22 be handled, in particular by manual Zugkraftbeaufschlagung the pull-out rod 26 he follows. During pull-out is the pull-out bar 26 guided in guide rails on both sides of the cargo space. The pull-out bar points, in particular also the 2 can be seen, a rectilinear design and forms together with a wrap around the fabric 24 a rear end edge 26z of the fabric 24 , This final edge 26z is formed differently than in many known roller blind systems straight. A rigid end board, which clearly projects beyond the extension rod to the rear and thus has a relevant share of the cover of the cargo space, is deliberately not provided.

As reflected by the 1a and 1b as well as the 2 has the load compartment flap 14 of the motor vehicle 10 also over a trailing edge 14z , despite the fundamentally cambered shape of the luggage compartment flap 14 is also rectilinear. In fully displaced rearward state of the extension rod 26 is thus in the off 2 apparent way the cargo space 12 completely covered. A narrow gap only remains between the closing edges 14z . 26z , this gap having a constant width, and preferably less than 30 mm, in particular less than 20mm. Due to the straightness of the final edges 14z . 26z Unproblematic is also a design with a significantly narrower gap up to a gapless design possible.

The 3a and 3b shows a preferred embodiment of the guide rail 30 , The guide rails 30 have each zuführend each guide channels 32 on, in which the outer ends of the pull-out bar 26 are guided.

For fixing the pull-out rod 26 in a rear end position with unwound fabric is a tapered channel section 34 provided in the state of 3a has a clear width, which is less than the diameter of the here circular cylindrical extension rod 26 is. This tapered channel section 34 is defined by two wall surfaces, namely a fixed wall surface 34a and an opposing deflectable counter surface 34b , The deflectable counter surface 34b can be so compared to their position of the 3a be shifted, that a passage of the pull-out bar 26 becomes possible. This is based on the 3b explained. In the state of 3a is the pull-out bar 26 through the surfaces 34a . 34b prevented from being pulled to the right by the spring force of a clock spring, not shown.

The deflectable counter surface 34b is present as a component of the same material and in a similar design as the other the guide channel 32 produced by defining sections. The deflectability is achieved by a leaf spring 40 in the form of a flat metal strip, which is on both the fixed part of the guide rail 30 as well as on the opposite surface 34b each by means of two bases 42a and 42b is attached. The section between these bases 44 the leaf spring 40 forms a bending area, within which the elastic deformation of the leaf spring takes place around the counter surface 34b deflect.

As based on the 3a and 3b is readily apparent, this design leads to a very compact design and allows a relative to the vehicle vertical direction very little bulky guide rail 30 ,

The holding force is indirectly determined by the leaf spring 40 provided by an operator by a short blow on the pull-out bar 26 or a guided shift of the extension rod 26 by a few centimeters in the direction of the winding shaft, the tapered channel section overcomes, so that subsequently by the winding shaft, the sheet can be wound up. The force required for this is preferably 6 Newton or more to overcome the two-sided tapered channel sections.

Based on 4 is explained that on the same guide rail 30 also several tapered channel sections 34 may be provided in order to fix the pull-out bar in different extension states 26 to enable.

The design of the 5 differs from the previous embodiments in that the mating surface 34b immediate section of the leaf spring 40 is, so that can be dispensed with another component. This allows a particularly favorable structure.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• FR 2992604 A1 [0005]

Claims (10)

Roller blind system ( 20 ) to cover a hold ( 12 ) with the following characteristics: a. the roller blind system ( 20 ) comprises a winding shaft ( 22 ), a wound on this and developable from this flexible sheet ( 24 ) to cover the cargo space ( 12 ) and one at a distal end of the sheet ( 24 ) mounted pull-out bar ( 26 ), and b. the roller blind system ( 20 ) on opposite sides of the cargo space ( 12 ) Guide rails ( 30 ) with an open guide channel ( 3 ) for guiding the extension rod, characterized by the following features: c. the guide channel ( 32 ) has at least one tapered channel section ( 34 ) for blocking the movement of the extension rod ( 26 ), which by a fixed wall surface ( 34a ) of the guide channel and an opposite and deflectable transversely to the direction of extension counter surface ( 34b ) is formed, and d. the deflectable counter surface ( 34b ) is by an extension direction ( 2 ) of the guide rail ( 30 ) extended leaf spring ( 40 ) in the direction of the fixed wall surface ( 34a ). Roller blind system ( 20 ) according to claim 1 having one of the following features: a. the counter surface ( 34b ) is by a of the leaf spring ( 40 ) separate component ( 36 ) formed with the leaf spring ( 40 ), or b. the counter surface ( 34b ) is integrally formed with the leaf spring ( 40 ) connected surface ( 34b ) educated. Roller blind system ( 20 ) according to claim 1 or 2, having the feature: a. the leaf spring ( 40 ) is on the winding shaft ( 22 ) side facing the counter surface ( 34b ) on the guide rail ( 30 ) stored. Roller blind system ( 20 ) according to one of the preceding claims, having one of the following features: a. the extension rod is adapted to a clear width of the guide channel so that it is not rotatable in the guide channel and / or b. the pull-out bar ( 26 ) a vertical extension of their in the guide channel ( 32 ) has at least 90% of a clear width of the guide channel ( 32 ) corresponds. Roller blind system ( 20 ) according to one of the preceding claims, having the feature: a. the pull-out bar ( 26 ), the tapered channel section ( 34 ) and the leaf spring ( 40 ) are coordinated in such a way that it requires a force of at least 3 Newton to the extension rod ( 26 ) against the force of the leaf spring ( 40 ) through the tapered channel section ( 34 ) move through. Roller blind system ( 20 ) according to one of the preceding claims, having the feature: a. the guide channel ( 30 ) has at least two tapered channel sections ( 34 ) for blocking the extension rod ( 26 ) in at least two different separation states. Roller blind system ( 20 ) according to one of the preceding claims, having at least one of the following features: a. the leaf spring ( 40 ) has a bending area ( 42 ), whose length in the extension direction of the guide channel ( 30 ) is at least 20mm, or b. the tapered channel section ( 34 ) is so in the guide rail ( 30 ) arranged that the pull-out rod ( 26 ) thereby in a rear end position within the guide channel ( 32 ) is blocked, or c. the leaf spring ( 40 ) is made of metal, or d. the guide rails ( 30 ) have a maximum height of 20mm. Motor vehicle ( 10 ) with a loading space ( 12 ) and a roller blind system ( 20 ) to cover the cargo space ( 12 ) having the following characteristics: a. the roller blind system ( 20 ) is formed according to one of claims 1 to 7. Motor vehicle ( 10 ) according to claim 8, having the following features: a. the loading space ( 12 ) is at its rear end by a pivoting load compartment door ( 14 ) limited, b. the load compartment flap ( 14 ) indicates the height of the guide rails ( 30 ) of the roller blind system ( 20 ) an inwardly directed rectilinear end edge ( 14z ), c. the pull-out bar ( 26 ) has at its distal end a rectilinear end edge ( 26z ) on. Motor vehicle ( 10 ) according to claim 8 or 9, having the following features: a. the winding shaft ( 22 ) is in the hold ( 12 ) variable in position between a use position and a stowed position, and b. for receiving the winding shaft ( 22 ) in the stowage position is a storage compartment ( 16 ) provided in the hold.

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