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US 11,421,454 B2Granted
Closure latch assembly with latch mechanism and outside release mechanism having reset device
AssigneeMagna Closures Inc.
InventorsFrancesco Cumbo, Marco Taurasi
Life of this patent
Estimating the term…
Abstract
A closure latch assembly for a motor vehicle closure system having a latch mechanism, a latch release mechanism for releasing the latch mechanism, and an outside backup release mechanism operable, in cooperating with the latch mechanism and the latch release mechanism, to provide an external latch release function and a separate and distinct latch reset function. The external latch release function is initiated by a first-key actuation operation associated with a door-mounted key release mechanism. The latch reset function is initiated, after the external latch release function, via a second key-actuated operation associated with a reset device on the closure latch assembly.
Claims22
A closure latch assembly for installation in a vehicle door having an outside handle, comprising:
- a latch mechanism having a primary ratchet and a primary pawl, the primary ratchet being moveable between a striker capture position whereat the primary ratchet retains a striker and a striker release position whereat the primary ratchet releases the striker, the primary pawl being moveable between a closed position whereat the primary pawl holds the primary ratchet in its striker capture position and an open position whereat the primary pawl is positioned to permit the primary ratchet to move to its striker release position;
- a latch release mechanism having a release lever being moveable between a rest position whereat the primary pawl is located in its closed position and an engaged position whereat the release lever moves the primary pawl to its open position;
- and
- an outside backup release mechanism having an OS backup lever, and OS connection device connecting the OS backup lever to a key cylinder associated with the outside handle and an OS reset knob, the OS backup lever being moveable between a rest position and an engaged position causing corresponding movement of the release lever between the rest position and the engaged position, the OS reset knob being moveable between an unlock position permitting the OS backup lever to move to its rest position and a lock position whereat the OS reset knob holds the OS backup lever in its engaged position,
- wherein a manual latch release operation includes manually actuating the key cylinder to move the OS connection device and causing the OS backup lever to move from its rest position to its engaged position for moving the release lever to its engaged position so as to shift the closure latch assembly from a Latched mode into an Unlatched-Blocked mode with the OS reset knob in its lock position for blocking movement of the OS backup lever from its engaged position to its rest position and holding the release lever in its engaged position,
- wherein a manual latch reset operation includes shifting the closure latch assembly from its Unlatched-Blocked mode into an Unlatched-Reset mode, the manual latch reset operation includes manually moving the OS reset knob from its lock position to its unlock position for permitting the OS backup lever to return to its rest position and for permitting the release lever to return to its rest position.
3 more elements
A vehicle door having an outside handle and a closure latch assembly, comprising:
- a latch mechanism having at least one ratchet and at least one pawl, the at least one ratchet being moveable between a striker capture position whereat the at least one ratchet retains a striker and a striker release position whereat the at least one ratchet releases the striker, the at least one pawl being moveable between a closed position whereat the at least one pawl holds the at least one ratchet in its striker capture position and an open position whereat the at least one pawl is positioned to permit the at least one ratchet to move to its striker release position;
- a latch release mechanism having a release lever engaging the at least one pawl and being moveable between a rest position whereat the at least one pawl is located in its closed position and an engaged position whereat the release lever moves the at least one pawl to its open position;
- and
- an outside backup release mechanism having an OS backup lever, and OS connection device connecting the OS backup lever to a key cylinder associated with the outside handle, and an OS reset knob, the OS backup lever being moveable between a rest position and an engaged position causing corresponding movement of the release lever between the rest position and the engaged position, the OS reset knob being moveable between an unlock position permitting the OS backup lever to move to its rest position and a lock position whereat the OS reset knob holds the OS backup lever in its engaged position,
- wherein a manual latch release operation includes manually actuating the key cylinder to move the OS connection device and causing the OS backup lever to move from its rest position to its engaged position for moving the release lever to its engaged position so as to shift the closure latch assembly from a Latched mode into an Unlatched-Blocked mode with the OS reset knob in its lock position for blocking movement of the OS backup lever from its engaged position to its rest position and holding the release lever in its engaged position,
- wherein a manual latch reset operation includes shifting the closure latch assembly from its Unlatched-Blocked mode into an Unlatched-Reset mode, the manual latch reset operation includes manually moving the OS reset knob from its lock position to its unlock position for permitting the OS backup lever to return to its rest position and for permitting the release lever to return to its rest position.
3 more elements
A closure latch assembly for installation in a vehicle door, comprising:
- a latch mechanism having a primary ratchet and a primary pawl, the primary ratchet being moveable between a striker capture position, whereat the primary ratchet retains a striker, and a striker release position, whereat the primary ratchet releases the striker, the primary pawl being moveable between a closed position, whereat the primary pawl holds the primary ratchet in its striker capture position, and an open position, whereat the primary pawl is positioned to permit the primary ratchet to move to its striker release position;
- a latch release mechanism having a release lever being moveable between a rest position, whereat the primary pawl is located in its closed position, and an engaged position, whereat the release lever moves the primary pawl to its open position;
- and
- an outside backup release mechanism having an OS reset knob and an OS connection device connecting the OS reset knob to the release lever, the OS reset knob being moveable between an unlock position allowing the release lever to move from its engaged position to its rest position, and a lock position for preventing the movement of the release lever from its engaged position to its rest position wherein OS reset knob is biased towards its locked position;
- wherein a manual latch release operation includes moving the OS connection device to move the release lever to the engaged position causing the OS reset knob to move to the lock position.
2 more elements
Dependencies are inferred from the claim text.