Rollover protection system with a folding roll bar for vehicles

Information

  • Patent Application
  • 20070138780
  • Publication Number
    20070138780
  • Date Filed
    November 01, 2006
    17 years ago
  • Date Published
    June 21, 2007
    17 years ago
Abstract
The invention concerns a rollover protection system for vehicles with roll bars located fixed to the vehicle seats, which roll bars are guided into a holder, which holder is fixed to the vehicle, and under normal conditions the roll bar is held by a holding device in a lower, stored position, is controlled by a sensor, and upon release of the holding device, is brought into an upright, protective position.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail on the basis of one of the preferred exemplary embodiments represented in the patent figures in different views and positions.


As shown in the following figures:



FIG. 1 shows, in an isometric drawing, the folding roll bar, according to the invention, constructed of two folding frame pieces, in the upright, locked position;



FIG. 2 shows, in an isometric drawing, the folding roll bar, according to the invention, in the folded, stored position;



FIG. 3 shows, in a cut out drawing from FIG. 1, the folding roll bar with a cut-away outer shell of the non-actuated frame piece;



FIG. 4 shows, in a drawing corresponding with FIG. 3, the folding roll bar, in accordance with the invention, with no outer shell on the non-actuated frame piece;



FIG. 5 shows, in an isometric cut-away drawing, the stored folding roll bar according to FIG. 2, with a partially broken away outer shell of the non-actuated frame piece in order to show the elements for locking the frame pieces in the upright position;



FIG. 6 shows a cross-sectional view of the frame pieces in the area of the locking element;



FIG. 7 shows a drawing according to FIG. 5, viewed from the back, in order to show the holding device for holding the folded frame pieces in the base position;



FIG. 8 shows, in a side view, the position of the folding roll bar and the holding device in the upright position; and



FIG. 9 shows, in an isometric cut-away drawing, the connection of an actuating coil spring with the corresponding frame piece.


Claims
  • 1. A rollover protection system for vehicles, comprising: roll bars that are fixed to seats of the vehicle and are guided in a holder that is itself fixed to the vehicle, and under normal conditions the roll bars are held in a lower, stored position, controlled by a sensor, and are brought into an upright, protective position by releasing the holding device, wherein each roll bar comprises two frame pieces, which are each spaced in a vehicular lateral axis, with one end pivotably connected in a mounting located in a bracket fixed to the vehicle, and wherein free ends so connected that when folded, the free ends slide against each other, and when deployed, the free ends interlock against each other.
  • 2. The rollover protection system according to claim 1, wherein the two frame pieces can be folded into each other when a monocoque construction is used.
  • 3. The rollover protection system according to claim 1, wherein the bracket comprises a trough-shaped base frame on the top, into which the mountings for the frame pieces are located, and which contains the frame pieces when they are folded together.
  • 4. The rollover protection system according to claim 1, wherein an actuating spring is provided for deploying the folded, stored frame pieces.
  • 5. The rollover protection system according to claim 4, wherein the actuating spring comprises a coil spring.
  • 6. The rollover protection system according to claim 5, wherein the actuating coil spring is assigned to only one of the frame pieces.
  • 7. The rollover protection system according to claim 6, wherein the actuating coil spring comprises a spring guide bolt, which spring guide bolt is pivotably connected to frame piece, and a flanged, radial appendage for bracing one end of the actuating coil spring, whereby a supporting point fixed to the vehicle frame is provided for bracing the other end of the actuating coil spring.
  • 8. The rollover protection system according to claim 1, wherein the holding device comprises a pivotable locking pawl connected to the bracket that is fixed to the vehicle frame, wherein the locking pawl is connected with a holding element located on one of the frame pieces, and is provided with an actuator that functions together with the locking pawl in a triggering function.
  • 9. The rollover protection system according to claim 1, wherein the free end of the frame piece comprises two opposing pins, which slide and are located in a slotted guide piece, which slotted piece is located in the other frame piece.
  • 10. The rollover protection system according to claim 9, wherein the pins are placed under spring tension, and the frame piece, in which the slotted guide piece is located, possesses two opposing apertures in the head end, which apertures form the locking receptacle for the pins in the upright position of the frame pieces.
  • 11. The rollover protection system according to claim 2, wherein the bracket comprises a trough-shaped base frame on the top, into which the mountings for the frame pieces are located, and which contains the frame pieces when they are folded together.
  • 12. The rollover protection system according to claim 11, wherein an actuating spring is provided for deploying the folded, stored frame pieces.
  • 13. The rollover protection system according to claim 12, wherein the actuating spring comprises a coil spring.
  • 14. The rollover protection system according to claim 13, wherein the actuating coil spring is assigned to only one of the frame pieces.
  • 15. The rollover protection system according to claim 14, wherein the actuating coil spring comprises a spring guide bolt, which spring guide bolt is pivotably connected to frame piece, and a flanged, radial appendage for bracing one end of the actuating coil spring, whereby a supporting point fixed to the vehicle frame is provided for bracing the other end of the actuating coil spring.
  • 16. The rollover protection system according to claim 15, wherein the holding device comprises a pivotable locking pawl connected to the bracket that is fixed to the vehicle frame, wherein the locking pawl is connected with a holding element located on one of the frame pieces, and is provided with an actuator that functions together with the locking pawl in a triggering function.
  • 17. The rollover protection system according to claim 16, wherein the free end of the frame piece comprises two opposing pins, which slide and are located in a slotted guide piece, which slotted piece is located in the other frame piece.
  • 18. The rollover protection system according to claim 17, wherein the pins are placed under spring tension, and the frame piece, in which the slotted guide piece is located, possesses two opposing apertures in the head end, which apertures form the locking receptacle for the pins in the upright position of the frame pieces.
Priority Claims (1)
Number Date Country Kind
102005059910.9-22 Dec 2005 DE national