Motor vehicle lock
AssigneeBrose Schließsysteme GmbH & Co. Kommanditgesellschaft, Wuppertal
InventorDavid Rosales
Life of this patent
Estimating the term…
Abstract
A motor vehicle lock including a catch, a pawl, and a drivetrain arrangement with a drive element. When the catch is in the secondary closed position, the pawl is moveable from the engaged state the released state to release the catch. The drive element may be configured to move in a predefined drive direction. The motor vehicle lock may include a first coupling element, provided with a first coupling surface and a second coupling element, provided with a second coupling surface. During the cinching sequence, the first coupling surface and the second coupling surface may be engaged with one another to move the catch. During the release sequence the drive element is moved in the predefined drive direction such that the first coupling surface and the second coupling surface are disengaged from one another.
Claims19
A motor vehicle lock including a detent mechanism, provided with a catch and a pawl, the motor vehicle lock comprising:
- a drivetrain arrangement provided with a drive element;
- wherein the catch is configured to pivot between an open position, a primary closed position, and a secondary closed position, wherein when the catch is in the secondary closed position, the catch is positioned between the open position and the primary closed position,
- wherein when the pawl is in an engaged state, the pawl blocks the catch when the catch is in the primary closed position,
- wherein when the catch is in the primary closed position, the pawl is moveable to a release state to release the catch,
- wherein the drive element is configured to move in a predefined drive direction
- wherein in a cinching sequence, the drive element drives in the predefined drive direction, such that the drivetrain arrangement engages the catch to drive the catch in a closing direction into the primary closed position,
- wherein in a release sequence, the drive element moves in the predefined drive direction such that the drivetrain arrangement engages the pawl to drive the pawl in a release direction to the release state,
- wherein the drivetrain arrangement includes a first coupling element, provided with a first coupling surface, and a second coupling element, provided with a second coupling surface, wherein during the cinching sequence, the first coupling surface and the second coupling surface are in a driving engagement with each other such that drive movements are transferred from the drive element to the catch,
- wherein during the release sequence, the drive element is driven in the predefined drive direction such that the drivetrain arrangement is in a decoupling state, wherein when the drivetrain arrangement is in the decoupling state, the first coupling surface and the second coupling surface are in a disengaged driving engagement from each other,
- and wherein during the release sequence, the drive element is driven in the predefined drive direction, such that the drivetrain arrangement engages the catch to move the catch in the closing direction to an overtravel position while or before the pawl enters the release state, wherein the overtravel position is a position beyond the primary closed position.
A motor vehicle lock configured to operate in a cinching sequence and in a release sequence, the motor vehicle lock comprising:
- a catch configured to pivot between an open position, a primary closed position, and a secondary closed position, wherein when the catch is in the secondary closed position, the catch is positioned between the open position and the primary closed position;
- a pawl configured to move between an engaged state and a released state, wherein when the catch is in the primary closed position, the pawl is moveable from the engaged state to the released state to release the catch;
- a drive element configured to move about a first axis in a predefined drive direction and including a first coupling surface;
- and
- a catch engagement lever configured to move about a second axis in the predefined drive direction and including a second coupling element provided with a second coupling surface,
- wherein during the cinching sequence, the first coupling surface and the second coupling surface are engaged with one another to move the catch to the primary closed position,
- wherein during the release sequence, the drive element is moved in the predefined drive direction such that the first coupling surface and the second coupling surface are disengaged from one another, and
- wherein during the release sequence, when the pawl is in the released state, the drive element is back driven against the predefined drive direction.
A motor vehicle lock configured to operate in a cinching sequence and in a release sequence, the motor vehicle lock comprising:
- a catch configured to pivot between an open position, a primary closed position, and a secondary closed position, wherein when the catch is in the secondary closed position, the catch is positioned between the open position and the primary closed position;
- a pawl configured to move between an engaged state and a released state, wherein when the catch is in the primary closed position, the pawl is moveable from the engaged state to the released state to release the catch;
- a drive element configured to move about a first axis in a predefined drive direction and including a first coupling surface;
- a catch engagement lever configured to move about a second axis in the predefined drive direction and including a second coupling element provided with a second coupling surface;
- and
- a pawl engagement lever configured to move about a third axis;
- wherein during the cinching sequence, the first coupling surface and the second coupling surface are engaged with one another to move the catch to the primary closed position,
- wherein during the release sequence, the drive element is moved in the predefined drive direction such that the first coupling surface and the second coupling surface are disengaged from one another and wherein the pawl engagement lever engages and moves the pawl to the released state, and
- wherein during the release sequence, when the pawl is in the released state, the drive element is back driven against the predefined drive direction.
Dependencies are inferred from the claim text.