KR20130106790A - Protective device for a vehicle passenger compartment - Google Patents

Abstract

PURPOSE: A protection device for shading the side window of driver for passenger car is provided to allow a hollow portion to be open toward the axial front end surface and a winding spring to axially extend to the outside of a winding shaft and be stationarily gripped in the front end area which is apart from the winding shaft, thereby implementing a spring motor function. CONSTITUTION: A protection device for shading the side window of driver for passenger car comprises a flexible planar formation (5) of a strip type. The flexible planar formation is gripped on a winding shaft (8) with a hollow portion (9) to be wound or unwound thereon. A coil-type winding spring (14) is disposed in the inside of the hollow portion to apply torque to the winding shaft in the winding direction. The hollow portion is open toward the axial front end surface. The winding spring passes through the open front end surface, axially extends to the outside of the winding shaft, and is stationarily gripped in the front end area which is apart from the winding shaft.

Description

Cabin protection device {PROTECTIVE DEVICE FOR A VEHICLE PASSENGER COMPARTMENT}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection device for a vehicle including a flexible planar formation that is wound and unwound on a winding shaft with a cavity, in the winding direction in the cavity. A coiled winding spring for applying torque to the winding shaft is disposed.

A protection device of this type in the sense of the invention may be provided as a luggage compartment cover between the luggage compartment and the passenger compartment in the interior of the cabin, or as a safety restraint system. Particularly preferably a protective device of the type mentioned first is provided as a shading device for shading in the area of the vehicle glass or in the area of the transparent roof section. Particularly preferably, this type of protection device is used to shield the side glass of the side door on the driver's or passenger's side.

A side wind roller shading device of this type is known from EP 1 894 758 A2. The known side roller roller shading device includes a winding shaft rotatably mounted in the region of the side glass frame, on which the flexible plane forming portion is rotatably gripped and unwound. The winding shaft is connected with the outer winding spring by a coupling in the region of the lower tip, the outer winding spring is mounted in a cylinder spaced apart from the winding shaft.

It is an object of the present invention to provide a protective device of the type mentioned initially, which has a simple configuration and at the same time provides excellent functionality.

The object is that the cavity is opened toward the axial end face, and the winding spring passes through the open end face and extends axially outward from the take-up shaft while not moving to its tip area remote from the take-up shaft. It is achieved through gripping. According to the invention, the coiled or helical winding spring is gripped by a rotatable winding shaft on one side and stationary on its other side, thereby creating a desired spring motor function. By extending the winding spring outward from the cavity, it is possible to give the winding spring a flat characteristic curve of spring. This type of horizontal spring characteristic curve ensures a relatively constant return force acting on the winding shaft in the winding direction over the entire lead out area of the planar formation. Preferably the winding spring is gripped in a preloaded state to prevent rattling noise in the driving mode of operation even in the wound rest position of the planar forming portion. This ensures that the user does not have to apply substantially increased force even when the planar forming portion is completely drawn out. In addition, it is also ensured that there is sufficient return force to retract and wind the planar forming portion to the stop position of the fully formed planar forming portion. The solution according to the invention is suitable for all types of protective devices described above. Particularly preferably, the solution according to the invention is provided for shielding the side glass of the driver's seat or the passenger side side door of the motor vehicle, and the planar formation can be drawn out from the door frame, in particular in a substantially horizontal direction.

According to an embodiment of the invention, the winding spring has an axial length which is much longer than the axial length of the winding shaft, preferably at least 30% to 100% longer, at no load. The long axial length of the coiled winding spring allows the preferred configuration of the winding spring as a helical tension spring having a horizontal spring characteristic curve.

According to a further embodiment of the invention, the winding spring is at least substantially surrounded by a support assembly over its axial region protruding axially from the cavity. The support assembly can be configured in a flexible or dimensionally stable way. The support assembly may be formed as a completely closed skin or as a lid of the grid or frame type. The support assembly may also be constructed in the form of a shell or groove. In all cases the support assembly serves to protect and support the winding springs.

According to a further embodiment of the invention, the support assembly is constructed as a hollow profile which is gripped with no movement. Preferably the hollow profile is made of plastic or metal in a dimensionally stable manner.

According to a further embodiment of the invention, the winding spring has one or more curvatures over its length in its region, which extends outwardly through the cavity in at least the axial direction, and / or the support assembly In particular, the hollow profile has one or more curvatures throughout its length. In this case, one or more arc-shaped curvatures, one or more obtuse curvatures, are provided, or curvatures which face each other in the same direction and / or in opposite directions. This allows the winding springs to be fitted to suit the available mounting space. The above embodiments are particularly preferred in the arrangement of the protective device and thus the winding spring in the door frame area of the side door. An arc-shaped curvature preferably means an arc-shaped curvature. The obtuse curvature is regarded as a bend at an angle of less than 45 °, preferably less than 30 ° or 20 °, relative to the central longitudinal axis of the winding spring. Curvatures facing in the same or opposite directions may be composed of arc-shaped and / or obtuse curvatures facing in the same or different curvature directions.

According to a further embodiment of the invention, the winding spring is surrounded by a noise deadening sheath in the hollow profile. For this purpose a flexible plastic hose is preferably provided, in which a winding spring, preferably composed of metal, is integrated. The plastic hose is preferably composed of an elastomeric material, or a thermoplastic elastomeric material. The sound insulation shell is disposed between the winding spring and the support assembly.

According to a further embodiment of the invention, the support assembly forms a pivot bearing point for the winding shaft. The support assembly thereby has a dual function, in addition to the protection and positioning for the winding springs, in addition to the bearing function for the winding shaft. The take-up shaft may have additional bearing points in the region of its leading end, which is located opposite, in a manner fixed to the vehicle, that is to say not gripped.

According to a further embodiment of the invention, the hollow profile comprises a tip region with a pivot bearing point, the pivot bearing point being rotatably mounted using its own end face opposite the winding shaft.

The winding shaft may have a cylindrical or conical tapered skin, on which the flexible planar forming part is preferably in the form of a planar material or in the form of a woven web or a mesh web. It is gripped so that winding and unwinding are possible.

According to a further embodiment of the invention, the hollow profile is constructed in a dimensionally stable manner, at least in the region of the pivot bearing point, and formed of a single member or multiple members. The hollow profile may be constructed of plastic or metal, or in some areas flexible, preferably in the form of tubes or hoses, in an overall dimensionally stable manner. The hollow profile in the area of the bearing point may have a pivot bearing collar, a bearing shoulder or a similar rotationally symmetrical bearing profiling, inside or at the surface of the winding shaft. Opposite tip regions are rotatably supported.

An object underlying the present invention is a winding protection device comprising a flexible flat forming portion that is gripped and unwound on a winding shaft to which torque is applied in a winding direction by a coil-type winding spring. In the case of the protection device, which is spaced apart from the winding shaft in the axial direction (relative to the central longitudinal axis of the winding shaft), it is also achieved through the winding spring being arranged with one or more curvatures over its length. This allows the protective device to be placed even if the mounting space is narrow inside the curved body panel. The curvature of the winding spring is configured in such a way that the torsion function for the desired winding of the winding shaft is not degraded.

According to an embodiment of the invention, the winding spring is at least substantially surrounded by the support assembly, the support assembly having one or more curvatures over its length. Preferably the support assembly surrounds the winding spring in such a way that the winding spring is located along one or more curvatures of the support assembly.

According to a further embodiment of the invention, the support assembly is constructed as a hollow profile which is gripped with no movement. The hollow profile is substantially cylindrical in shape and completely surrounds the winding spring.

According to a further embodiment of the invention, a protective device is provided for mounting in a vehicle door, wherein the support assembly and the winding shaft are integrated in the area of the side glass in one or more frame sections of the vehicle door. The protective device according to the invention is thus suitably used for shading side glass in the area of the driver's or passenger seat door. The flexible planar formation may preferably be withdrawn in the forward direction from the rear door frame section, covering the area between 20% and 40% of the side glass in the withdrawn functional state. In this case the upper area of the side glass is covered so as not to detract from the driver's field of view towards the corresponding side mirror or directly to the side. The protection device according to the invention can be mounted on the surface of or inside the vehicle side door as a pre-assembled structural unit before or after the vehicle side door is fixed and hinged to the corresponding vehicle body of the passenger car. .

According to a further embodiment of the invention, the support assembly, in particular the hollow profile, is curved in correspondence with the curvature contour of the frame section of the vehicle door so as not to move with the frame section. The hollow profile can thereby be fully integrated into the frame section of the vehicle door.

Further advantages and features of the present invention are presented not only in the claims, but also in the following description of the preferred embodiments of the invention shown in accordance with the drawings.

According to the invention, the cavity is open toward the axial end face, and the winding spring passes through the open end face and extends axially outward from the take-up shaft and moves to its own tip area away from the take-up shaft. Not gripped. Thus, a desired spring motor function can be created. More specifically, the winding spring can be imparted with a flat characteristic curve of spring through the axial extension outward from the cavity. This type of horizontal spring characteristic curve ensures a relatively constant return force acting on the winding shaft in the winding direction over the entire lead out area of the planar formation.

Preferably the winding spring is gripped in a preloaded state to prevent rattling noise in the driving mode of operation even in the wound rest position of the planar forming portion. This ensures that the user does not have to apply substantially increased force even when the planar forming portion is completely drawn out. In addition, it is also ensured that there is sufficient return force to retract and wind the planar forming portion to the stop position of the fully formed planar forming portion.

1 is a side view schematically showing a driver's seat or passenger side side door of a passenger car, which includes one embodiment of a protection device according to the invention;
FIG. 2 is an enlarged cross-sectional view schematically illustrating the vehicle side door cut along the cutting line II-II of FIG. 1.
3 is a further enlarged cross-sectional view taken along the line III-III of FIG. 2.
4 is a schematic view showing a further embodiment of the protection device according to the invention.

The passenger car comprises a vehicle side door on the driver's seat and the passenger side shown in Fig. 1 in a basically known manner. The vehicle side door 1 is pivotally hinged to an area of the A pillar of the vehicle body of the passenger car, in a manner not shown in more detail, on its side located on the right side in the figure. In the left region of the drawing according to FIG. 1 the vehicle side door 1 is connected to the B pillar of the vehicle body and is locked to the B pillar of the vehicle body in a locked position by a lock assembly not shown in detail. Can be. The vehicle side door 1 comprises a side glass 2 which closes the opening of the door frame in a closed state. The door frame of the vehicle side door 1 is not only in the rear frame section 3 facing the B pillar, but also in the direction of the loop frame section 4 leading from the rear frame section 3 forward to the A pillar. The roof frame section is formed through the bottom of the front into a substantial door area of the vehicle side door.

In order to be able to shield the upper area of the side glass 2, a protective device is provided in the form of a side glass shade 7 comprising a flexible planar formation 5 in strip form.

As can be seen according to FIGS. 2 and 3, the planar forming portion 5 is gripped and unwound on the cylindrical winding shaft 8. In the leading end region of the flexible planar forming portion 5 in the drawing direction, it can be separably locked to the corresponding receiving portion of the loop frame region at the drawn out functional position of the planar forming portion 5 according to FIG. 1. A handle device 6 (FIG. 1) is provided. The flexible planar formation 5 can be withdrawn from the frame section via a slot in the frame section 3. The winding shaft 8 is rotatably mounted in the corresponding receiving area of the frame section 3, as can be seen according to FIGS. 2 and 3, the winding shaft is aligned in the vertical direction of the frame section 3. The winding shaft 8 has a cavity 9 open inward toward the lower tip face in FIG. 3. And a coiled winding spring 14 spirally formed in a manner that passes through the cavity 9 formed in a substantially cylindrical shape in the axial direction, and the winding spring has its upper end located at the top in FIG. 3. It is coupled in a rotationally fixed manner with the winding shaft 8 in the region. The winding spring 14 extends downwardly through the entire cavity 9 and extends out of the winding shaft in the axial direction. In the region extending out of the take-up shaft in the axial direction, the take-up spring 14 is mounted in a hollow profile 13 configured as a static tube, which is fixed immovably in the frame section 3. The tip region of the winding spring 14 located opposite to the tip region coupled in a rotationally fixed manner with the winding shaft is fixed to the lower end region of the hollow profile 13 according to FIG. 3, whereby the winding spring 14 The lower leading end area of) is immovably fixed or hinged. The hollow profile 13 is constructed by bending corresponding to the curvature of the frame section 3 of the vehicle side door 1. The hollow profile 13 has two bends 16, 17 for this purpose which cause the deflection of the winding spring 14 by less than 30 ° each with respect to the central longitudinal axis of the winding shaft 8. The winding spring 14 is likewise surrounded by a sound insulation shell 15 in the form of an elastic flexible plastic hose disposed inside the hollow profile 13. The winding spring 14 is made of metal and is made of spring steel in the illustrated embodiment. The winding spring 14 is directly surrounded by the winding shaft 8 or hollow profile 13 at any position through the winding spring 14 being enclosed by the sound insulation shell 15 over its entire helical length. Not adjacent. The impact of the winding spring 14 against the interior of the winding shaft 8 or the hollow profile 13 upon twisting of the winding spring 14 that occurs on the basis of the withdrawal or withdrawal motion of the planar forming part 5 No metal noise is generated by the adjacency. In addition, the hollow profile 13 can be made of metal. In the same way the hollow profile 13 can be made of a dimensionally stable plastic material.

The upper leading region of the hollow profile 13 forms a bearing point 12 for the pivot bearing of the take-up shaft 8. The bearing point 12 is a separate component that is inserted into the hollow profile 13 at the leading end to form a pivot bearing shoulder that is rigidly engaged with the leading end of the hollow profile 13. The pivot bearing 11 of the winding shaft 8 is of the plug or piston type, in order to form a sliding bearing, projecting inside the shoulder of the stationary bearing point 12 of the hollow profile 13. For this purpose, the pivot bearing 11 and the bearing point 12 are coaxially rotationally symmetrical. In addition, the pivot bearing 11 may be manufactured as a separate component and inserted into the open end face of the winding shaft 8 in the axial direction and coupled to the winding shaft 8 in a rotationally fixed manner.

The upper pivot bearing point 10 of the winding shaft 8 is formed by a simple bearing journal, which is rotatably mounted in a corresponding bearing holding fixture in the region of the frame section 3.

The hollow profile 13 is held in position by means of fastening means, not shown in detail in the frame section 3, and thus gripped unmovably.

The winding spring 14 has an axial length that is about twice as long as the axial length of the winding shaft 8 in a no-load state, that is to say an untwisted stop position. The winding spring 14 is composed of a single member, and is formed in such a manner that only a relatively low return force is generated in the winding direction even in a functional position where the planar portion is completely drawn out. In addition, the winding spring 14 is configured in such a manner that a sufficient return force and thus sufficient torque in the winding direction are still generated just before the planar forming portion 5 reaches the stop position in which it is wound. In addition, the return force of the winding spring generated in the winding direction is formed in such a way that simple manual withdrawal can be made without using a large force at each position of the planar forming portion 5. Preferably, the winding spring 14 is provided in the interior of the winding shaft 8 and in a hollow profile in such a way that the winding spring 14 is at least minimally preloaded even in the stationary position in which the planar formation 5 is completely wound. 13) is disposed inside.

The protection device 7a according to FIG. 4 is likewise used for shading the side glass of the driver's seat or passenger side side door of a motor vehicle. The arrangement structure of the protection device 7a in the frame section of the side door corresponds to the above-described embodiment, and thus, reference is made to the disclosure of the above embodiment in order to avoid repeated description. In the case of the protective device 7a a spiral or coiled winding spring 14a is likewise provided, but this winding spring is disposed completely outside of the winding shaft 8a. Therefore, the winding shaft 8a can be formed in the shape in which both front end surfaces are closed. In the region of the upper pivot bearing of the winding shaft, the winding shaft 8a is rotatably mounted in the frame section of the side door. In the area of the lower end face of the winding shaft itself, the winding shaft 8a rotates in the bearing fixture 12a of the support assembly 13a, which is formed as a hollow profile and is gripped in the interior of the door frame section of the side door. Possibly mounted. Inside the support assembly 13a, which is configured as a hollow profile, it is engaged in a rotationally fixed manner with the take-up shaft 8a in the upper tip region, and in its lower tip region is movably coupled with the cover region of the support assembly 13a. The winding spring 14a is arrange | positioned.

In addition to the winding spring 14a, the support assembly 13a, which is configured as a hollow profile, has two curvatures 16a, 17a which are formed in accordance with the corresponding curvature of the not shown door frame section. The double curvature of the winding spring 14a has a sufficient torsional function to apply torque in the winding direction of the planar forming portion 5a on the winding shaft 8a over the complete axial length of the winding spring 14a. It is chosen in a guaranteed way. The winding spring 14a has a horizontal spring characteristic curve corresponding to the above-described embodiment, and even in the fully wound stationary position of the flat forming portion 5a, the winding spring 14a of the winding forming shaft 8a It is preloaded to apply torque to the winding shaft 8a at the stop position.

Claims (17)

A protective device for a vehicle, comprising a flexible flat forming portion 5 wound and unwound on a winding shaft 8 having a cavity 9, in the cavity 9 in the winding direction. In the protection device, in which the coil-shaped winding spring 14 for applying torque on the winding shaft 8 is disposed, the cavity 9 is opened toward the axial end surface side, and the winding spring 14 ) Is held axially out of the take-up shaft (8) through the open tip surface and gripped unmovably into its tip area remote from the take-up shaft (8). 2. The winding spring (14) according to claim 1, characterized in that the winding spring (14) has an axial length which is much longer than the axial length of the winding shaft, preferably at least 30% to 100% longer in the no load stationary state. Protection device. 3. The winding spring (14) according to claim 1 or 2, characterized in that the winding spring (14) is at least substantially surrounded by the support assembly (13) over its axial region protruding axially from the cavity (9). Protection device. 4. Protective device according to claim 3, characterized in that the support assembly is configured as a hollow profile (13) which is gripped in motion. 2. The protection according to claim 1, wherein the winding spring 14 has at least one curvature over its length in its region extending outwardly through the cavity 9 at least in the axial direction. Device. 6. Protective device according to one of the preceding claims, characterized in that the hollow profile (13) has at least one curvature (16, 17) over its length. 7. A method according to claim 6, characterized in that one or more arc shaped curvatures, one or more obtuse curvatures (16, 17) are provided, or curvatures which face each other in the same direction and / or in opposite directions. Protection device. 4. Protective device according to claim 3, characterized in that the winding spring (14) is surrounded by a sound insulation shell (15). 4. Protective device according to claim 3, characterized in that the support assembly (13) forms a pivot bearing point for the winding shaft (8). 10. The hollow profile (13) according to claim 9, wherein the hollow profile (13) comprises a tip region with a pivot bearing point (12), wherein the pivot bearing point is rotated using its own end face opposite the winding shaft (8). Protective device, characterized in that possible mounted. 11. Protective device according to claim 10, characterized in that the hollow profile (13) is constructed in a dimensionally stable manner at least in the region of the pivot bearing point (12) and is formed of a single member or multiple members. A protective device for a vehicle, comprising a flexible flat forming portion (5a) that is wound and wound on a winding shaft (8a) to which torque is applied in a winding direction by a coiled winding spring (14a). 14a, in the protection device, which is spaced relative to the winding shaft 8a in the axial direction (relative to the central longitudinal axis of the winding shaft 8a), the winding spring 14a is one over its length. The protective device characterized by including the above-mentioned curvature part. 13. The winding spring (14a) according to claim 12, characterized in that the winding spring (14a) is at least substantially surrounded by a support assembly (13a), the support assembly having at least one curvature (16a, 17a) over its length. Protection device. 14. Protective device according to claim 13, characterized in that the support assembly (13a) is configured as a hollow profile which is held in motion. The protection device according to claim 1, wherein the protection device is provided for mounting in the vehicle door 1, the support assembly 13 and the winding shaft 8 being the vehicle door 1. Protective device, characterized in that it is integrated in the area of the side glass (2) in at least one frame section (3). The support assembly according to claim 15, wherein the support assembly, in particular the hollow profile 13, is curved corresponding to the curvature contour of the frame section 3 of the vehicle door 1 so as to be rigidly engaged with the frame section 3. Protection device. A vehicle side door for an automobile, in particular for a passenger car, comprising the protective device according to any one of claims 1 to 16.

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