Roll-over protection arrangement for a motor vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorLothar Heiner
Life of this patent
Estimating the term…
Abstract
A roll-over protection arrangement is provided which comprises an approximately U-shaped roll-over bar which can be translationally moved upward and back and which, by means of its downwardly directed legs, is guided by means of guiding elements in a housing. By means of the effect of springs, the roll-over bar can be rapidly changed from its inoperative position which projects hardly beyond the vehicle railing into a supporting position which projects clearly upward beyond the vehicle railing. In order to reduce the overall weight of the installed components as well as of the installed ejecting springs, almost all parts of the roll-over protection arrangement, including at least the legs of the roll-over bar and guiding elements therefor are made of extruded profiles.
Claims30
A roll-over protection arrangement for a motor vehicle which has a vehicle railing extending along at least portions of a passenger accommodating area, said roll-over protection arrangement comprising:
- an approximately U-shaped roll-over bar having downwardly directed U-legs and an upper bridging portion between top portions of the U-legs,
- a guiding arrangement for supportably guiding the U-shaped roll-over bar for movement between a downward inoperative position for normal driving operations and an upper operative position above the vehicle railing for protecting vehicle passengers in the event of a vehicle roll-over, said guiding arrangement including guiding elements slidably engageable with the U-legs,
- a releasable holding device for holding the U-legs in the downward position,
- a locking device for locking the U-legs in the upper position, and
- a force-applying mechanism for rapidly moving the U-shaped roll-over bar from the downward position to the upper position,
- wherein the U-legs and the guiding elements are made from extruded profile aluminum alloy or other light weight material members, which are fitted to slidably engage with one another during respective movements between the downward and upper positions.
A roll-over protection arrangement for a motor vehicle which has a vehicle railing extending along at least portions of a passenger accommodating area, said roll-over protection arrangement comprising:
- an approximately U-shaped roll-over bar having downwardly directed U-legs and an upper bridging portion between top portions of the U-legs,
- a guiding arrangement for supportably guiding the U-shaped roll-over bar for movement between a downward inoperative position for normal driving operations and an upper operative position above the vehicle railing for protecting vehicle passengers in the event of a vehicle rollr-over, said guiding arrangement including guiding elements slidably engageable with the U-legs,
- a releasable holding device for holding the U-legs in the downward position,
- a locking device for locking the U-legs in the upper position, and
- a force-applying mechanism for rapidly moving the U-shaped roll-over bar from the downward position to the upper position,
- wherein the U-legs and the guiding elements are made from extruded profile members,
- wherein the lower ends of the legs are connected with one another by means of a transverse yoke when in an installed position on a vehicle, and
- wherein the transverse yoke is made of an extruded profile and includes a transverse web, receiving bushes which enclose the leg ends being provided on ends of the transverse web.
A roll-over protection arrangement for a motor vehicle which has a vehicle railing extending along at least portions of a passenger accommodating area, said roll-over protection arrangement comprising:
- an approximately U-shaped roll-over bar having downwardly directed U-legs and an upper bridging portion between top portions of the U-legs,
- a guiding arrangement for supportably guiding the U-shaped roll-over bar for movement between a downward inoperative position for normal driving operations and an upper operative position above the vehicle railing for protecting vehicle passengers in the event of a vehicle roll-over, said guiding arrangement including guiding elements slidably engageable with the U-legs,
- a releasable holding device for holding the U-legs in the downward position,
- a locking device for locking the U-legs in the upper position, and
- a force-applying mechanism for rapidly moving the U-shaped roll-over bar from the downward position to the upper position,
- wherein the U-legs and the guiding elements are made from extruded profile members,
- wherein the guiding elements comprise two stand pipes made of an extruded profile which are fastened to the housing by means of their lower end, and
- wherein the stand pipes are surrounded on the bottom by centering cones which are supported on the housing bottom by way of springs.
A roll-over protection arrangement for a motor vehicle which has a vehicle railing extending along at least portions of a passenger accommodating area, said roll-over protection arrangement comprising:
- an approximately U-shaped roll-over bar having downwardly directed U-legs and an upper bridging portion between top portions of the U-legs,
- a guiding arrangement for supportably guiding the U-shaped roll-over bar for movement between a downward inoperative position for normal driving operations and an upper operative position above the vehicle railing for protecting vehicle passengers in the event of a vehicle roll-over, said guiding arrangement including guiding elements slidably engageable with the U-legs,
- a releasable holding device for holding the U-legs in the downward position,
- a locking device for locking the U-legs in the upper position, and
- a force-applying mechanism for rapidly moving the U-shaped roll-over bar from the downward position to the upper position,
- wherein the U-legs and the guiding elements are made from extruded profile members,
- wherein the guiding elements are arranged on a housing which is essentially formed from an extruded profile and can be fastened to an approximately vertically extending vehicle body wall,
- wherein the guiding elements comprise two stand pipes made of an extruded profile which are fastened to the housing by means of their lower end, and
- wherein the stand pipes are held on their upper ends by a transverse plate made of an extruded profile arranged on the housing which by way of a connecting web carries two receiving bushes for the stand pipes.
A roll-over protection arrangement for a motor vehicle which has a vehicle railing extending along at least portions of a passenger accommodating area, said roll-over protection arrangement comprising:
- a roll-over bar having downwardly directed legs and an upper bridging portion between top portions of the legs,
- a guiding arrangement supportably guiding movement of the legs between a downward inoperative position for normal driving operations and an upper operative position above the vehicle railing for protecting vehicle passengers in the event of a vehicle roll-over, said guiding arrangement including guiding elements slideably engageable with the legs,
- a downward position leg holding device,
- an upper position leg holding device, and
- a force-applying mechanism disposed to move the roll-over bar from the downward position to the upper position,
- wherein said roll-over bar and guiding arrangement are supported in a cassette housing which in use is disposed separate from vehicle passenger seats and adjacent the passenger accommodating area, said cassette housing including a housing floor at its bottom,
- and wherein said guiding elements include respective standpipes fastened to the housing floor.
Dependencies are inferred from the claim text.