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In one form, a multipoint locking assembly includes a first latch device, a second latch device, and a mortise assembly coupled to the first and second latch devices. The mortise assembly may comprise a first transmission coupled to the first latch device via a first flexible member, a second transm

In one form, a multipoint locking assembly includes a first latch device, a second latch device, and a mortise assembly coupled to the first and second latch devices. The mortise assembly may comprise a first transmission coupled to the first latch device via a first flexible member, a second transmission coupled to the second latch device via a second flexible member, and an actuation assembly operable to actuate the first and second transmissions. At least one of the transmissions comprises a slack removal device operable to remove slack in the flexible member to which it is coupled, thereby ensuring proper transmission of pulling forces between the transmission and the latch device.

대표청구항 ▼

1. A system, comprising: a chassis mountable in a mortise cutout in a thin edge of a door, the chassis including: a casing;a first transmission slidingly coupled to the casing and operable in a first extended position and a first retracted position, the first transmission comprising a first spool, w

1. A system, comprising: a chassis mountable in a mortise cutout in a thin edge of a door, the chassis including: a casing;a first transmission slidingly coupled to the casing and operable in a first extended position and a first retracted position, the first transmission comprising a first spool, wherein the first spool is selectively rotatable with respect to the chassis;a second transmission slidingly coupled to the casing and operable in a second extended position and a second retracted position, the second transmission comprising a second spool, wherein the second spool is selectively rotatable with respect to the chassis;a hold-open link connected between the first transmission and the second transmission, the hold-open link having a holding position and a release position;a first adjustment device operable to selectively rotate the first spool;a second adjustment device operable to selectively rotate the second spool; andan actuation assembly coupled to the first transmission and to the second transmission, and operable in an unactuated state and an actuated state;wherein the first transmission and the second transmission are respectively operable in the first retracted position and the second retracted position in response to the actuated state of the actuation assembly;wherein in the holding position, the hold-open link is configured to retain the second transmission in the second retracted position while permitting movement of the first transmission from the first retracted position toward the first extended position;wherein the first transmission is configured to move the hold-open link from the holding position to the releasing position as the first transmission moves from the first retracted position toward the first extended position; andwherein in the release position, the hold-open link is configured to permit movement of the second transmission from the second retracted position to the second extended position;a first cable comprising a first spooled portion wound about the first spool and a first free portion including a first coupling member engageable with a first latch device; anda second cable including a second spooled portion wound about the second spool and a second free portion including a second coupling member engageable with a second latch device;wherein rotation of the first spool via the first adjustment device is operable to adjust a length of the first free portion; andwherein rotation of the second spool via the second adjustment device is operable to adjust a length of the second free portion. 2. The system of claim 1, wherein the first spool includes gear teeth, and the first adjustment device comprises a worm including threads engaged with the gear teeth. 3. The system of claim 2, wherein the first adjustment device further includes a head configured to be engaged by an adjustment tool, and a slip clutch configured to selectively transmit torque from the head to the worm. 4. The system of claim 3, wherein the casing comprises an opening aligned with the head, wherein the opening is adjacent the thin edge of the door when the chassis is mounted in the mortise cutout. 5. The system of claim 4, further comprising a faceplate mountable to the thin edge of the door and configured to cover the opening and retain the chassis within the mortise cutout. 6. The system of claim 1, further comprising the first latch device and the second latch device; wherein the first latch device is engaged with the first coupling member, and is operable in a first latch device first state in response to the first extended position and a first latch device second state in response to the first retracted position; andwherein the second latch device is engaged with the second coupling member, and is operable in a second latch device first state in response to the second extended position and a second latch device second state in response to the second retracted position. 7. The system of claim 6, wherein the first latch device includes a latch operable in a latching position and an unlatching position, and a blocking member operable in a blocking position wherein the latch is retained in the latching position and an unblocking position wherein the latch is movable between the latching position and the unlatching position; wherein the blocking member is engaged with the first coupling member, the first latch device first state comprises the blocking position, and the first latch device second state comprises the unblocking position; andwherein the second latch device includes a bolt operable in a locking position and an unlocking position, the second latch device first state comprises the locking position, and the second latch device second state comprises the unlocking position. 8. The system of claim 7, wherein the first latch device is configured to retain the blocking member in the unblocking position when the latch is in the unlatching position, and to permit movement of the blocking member between the blocking position and the unblocking position when the latch is in the latching position; and wherein the system further comprises a hold-open assembly operably connected to the blocking member and the bolt, wherein the hold-open assembly includes the hold-open link, wherein the hold-open assembly is configured to retain the bolt in the unlocking position when the blocking member is in the unblocking position and to permit the bolt to move from the unlocking position to the locking position when the blocking member is in the blocking position. 9. The system of claim 6, further comprising the door, the door including an upper opening formed in a top surface of the door, a lower opening formed in a bottom surface of the door, an upper channel connecting the upper opening and the mortise cutout, and a lower channel connecting the lower opening and the mortise cutout; and wherein the chassis is seated in the mortise cutout, the first latch device is seated in the upper opening, the second latch device is seated in the lower opening, the first free portion extends through the upper channel, and the second free portion extends through the lower channel. 10. The system of claim 9, wherein the door is a wood door. 11. The system of claim 10, wherein the wood door comprises a plurality of panels and an inner core positioned between the plurality of panels. 12. The system of claim 11, wherein the inner core comprises a composite material. 13. The system of claim 12, wherein at least one of the plurality of panels is a veneer. 14. A system, comprising: a mortise assembly including: a first transmission configured to be coupled to a first latch device, and a second transmission configured to be coupled to a second latch device, wherein each of the first transmission and the second transmission is operable in an actuated state and an unactuated state, and wherein the first transmission is operable in the actuated state to actuate the first latch device, and wherein the second transmission is operable in the actuated state to actuate the second latch device;an actuation assembly coupled to the first transmission and to the second transmission, wherein the actuation assembly is configured to transition the first transmission and the second transmission from the unactuated states to the actuated states in response to an actuating input; anda hold-open link coupled to the first transmission and the second transmission, wherein the hold-open link is operable in a holding position in response to the actuated state of the first transmission and a releasing position in response to the unactuated state of the first transmission;wherein in the holding position, the hold-open link is configured to retain the second transmission in the actuated state while permitting movement of the first transmission from the actuated state toward the unactuated state;wherein the hold-open link is configured to move from the holding position toward the releasing position as a result of the movement of the first transmission from the actuated state toward the unactuated state, and to retain the second transmission in the actuated state during the movement of the first transmission from the actuated state toward the unactuated state; andwherein in the releasing position, the hold-open link is configured to permit the second transmission to transition from the actuated state to the unactuated state. 15. The system of claim 14, further comprising a biasing element configured to urge the hold-open link toward the holding position, wherein the hold-open link is configured to move from the holding position to the releasing position against a force of the biasing element in response to motion of the first transmission from the actuated state to the unactuated state thereof. 16. The system of claim 15, wherein the holding position comprises a first angular position and the releasing position comprises a second angular position, and wherein one of the hold-open link and the first transmission comprises a cam surface configured to urge the hold-open link from the first angular position to the second angular position in response to motion of the first transmission from the actuated state to the unactuated state thereof. 17. The system of claim 16, wherein the hold-open link comprises a first portion and a second portion, the first portion comprising the cam surface, the second portion comprising a ledge; wherein the first transmission includes a first protrusion engageable with the cam surface, and the second transmission includes a second protrusion;wherein in the holding position, the ledge is aligned with the second protrusion; andwherein in the releasing position, the ledge is not aligned with the second protrusion. 18. The system of claim 14, further comprising the first latch device and the second latch device; wherein the first latch device includes a latch operable in a latching position and an unlatching position, and is operable in a locked state wherein the latch is retained in the latching position and an unlocked state wherein the latch is movable from the latching position to the unlatching position;wherein the second latch device includes a bolt operable in an extended position and a retracted position;wherein the first latch device is coupled to the first transmission, and is configured to transition from the locked state to the unlocked state in response to actuation by the first transmission;wherein the second latch device is coupled to the second transmission, and is configured to move the bolt from the extended position to the retracted position in response to actuation by the second transmission;wherein, with the latch in the latching position, the first transmission is movable between the unactuated state and the actuated state; andwherein, with the latch in the unlatching position, the first transmission is retained in the actuated state. 19. A multipoint latching assembly configured to be installed in a door comprising a center opening formed in a thin vertical edge of the door, an upper opening, and a lower opening, the multipoint latching assembly comprising: a top latch device configured to be mounted in the upper opening and operable in a first unactuated state and a first actuated state;an upper pull cable coupled to the top latch device;a bottom latch device configured to be mounted in the lower opening and operable in a second unactuated state and a second actuated state;a lower pull cable coupled to the bottom latch device;a mortise assembly configured to be mounted in the center opening, the mortise assembly including: a first slack removal assembly coupled to the upper pull cable;a second slack removal assembly coupled to the lower pull cable;a manual actuator operably connected to the first slack removal assembly and the second slack removal assembly; anda casing including a proximal side configured to be positioned adjacent the thin vertical edge of the door; anda hold-open assembly connected between the top latch device and the bottom latch device, the hold-open assembly having a holding state and a releasing state;wherein each of the first slack removal assembly and the second slack removal assembly is movable in a first manner to retract the pull cable to which it is coupled, and is movable in a second manner to remove slack in the pull cable to which it is coupled;wherein the manual actuator is operable to move the first slack removal assembly and the second slack removal assembly in the first manner;wherein each of the top latch device and the bottom latch device is configured to transition from the unactuated state thereof to the actuated state thereof in response to retraction of the pull cable to which it is coupled;wherein the hold-open assembly is configured to move from the releasing state to the holding state in response to movement of the first slack removal assembly and the second slack removal assembly in the first manner;wherein the hold-open assembly in the holding state is configured to retain the bottom latch device in the second actuated state while permitting the top latch device to move from the first actuated state toward the first unactuated state. 20. The multipoint latching assembly of claim 19, the top latch device including a latch operable in a latching position and an unlatching position, wherein the latch is retained in the latching position in the first unactuated state, and wherein the latch is movable between the latching position and the unlatching position in the first actuated state; and the bottom latch device including a bolt operable in an extended position in the second unactuated state and a retracted position in the second actuated state. 21. The multipoint latching assembly of claim 20, wherein the hold-open assembly is connected to the top latch device through the upper pull cable and is connected to the bottom latch device through the lower pull cable, wherein the hold-open assembly is configured to move from the holding state to the releasing state in response to movement of the top latch device from the first actuated state to the first unactuated state; and wherein the hold-open assembly in the releasing state is configured to permit the bottom latch device to move from the second actuated state to the second unactuated state. 22. The multipoint latching assembly of claim 21, wherein the first manner comprises vertical movement in a longitudinally inward direction; and wherein the manual actuator comprises: a manually actuable lever;a drive assembly operably coupled with the manually actuable lever and configured to move in a horizontal direction in response to actuation of the manually actuable lever; anda pair of bell cranks coupled to the drive assembly and configured to translate horizontal movement of the drive assembly to vertical movement of the first slack removal assembly and the second slack removal assembly in the longitudinally inward direction. 23. The multipoint latching assembly of claim 22, wherein vertical movement in the longitudinally inward direction comprises downward movement of the first slack removal assembly and upward movement of the second slack removal assembly, and wherein vertical movement in a longitudinally outward direction comprises upward movement of the first slack removal assembly and downward movement of the second slack removal assembly; wherein the hold-open assembly comprises a tilting link including a first arm and a second arm;wherein the first arm is operable to urge the hold-open assembly from the holding state to the releasing state in response to upward movement of the first slack removal assembly; andwherein the second arm is configured to prevent downward movement of the second slack removal assembly when in the holding state, and to permit downward movement of the second slack removal assembly when in the releasing state. 24. A system comprising the multipoint latching assembly of claim 23, wherein the system further comprises the door, wherein the upper opening is formed in a top surface of the door, and the lower opening is formed in a bottom surface of the door. 25. The multipoint latching assembly of claim 19, wherein each of the first slack removal assembly and the second slack removal assembly includes a rotatable spool, wherein the first manner comprises linear motion of the rotatable spool, and wherein the second manner comprises rotation of the rotatable spool. 26. The multipoint latching assembly of claim 25, wherein each of the rotatable spools comprises a helical channel configured to receive a portion of the pull cable to which the rotatable spool is coupled. 27. The multipoint latching assembly of claim 26, wherein each of the first slack removal assembly and the second slack removal assembly further comprises an adjustment device operable to selectively rotate the corresponding rotatable spool, wherein the adjustment device is accessible through an opening in the proximal side of the casing. 28. The multipoint latching assembly of claim 27, wherein in each of the first slack removal assembly and the second slack removal assembly, the rotatable spool includes a gear portion and the adjustment device includes a worm engaged with the gear portion. 29. A multipoint latching assembly, comprising: a top latch device having a first unactuated state and a first actuated state;an upper pull cable coupled to the top latch device;a bottom latch device having a second unactuated state and a second actuated state;a lower pull cable coupled to the bottom latch device;a mortise assembly comprising: a first slack removal assembly coupled to the upper pull cable;a second slack removal assembly coupled to the lower pull cable;a manual actuator operably connected to the first slack removal assembly and the second slack removal assembly; anda casing including an upper side, a lower side, and a proximal side, the proximal side extending between the upper side and the lower side;wherein each of the first slack removal assembly and the second slack removal assembly is movable in a first manner to retract the pull cable to which it is coupled, and is movable in a second manner to remove slack in the pull cable to which it is coupled;wherein the manual actuator is operable to move the first slack removal assembly and the second slack removal assembly in the first manner;wherein each of the top latch device and the bottom latch device is configured to transition from the unactuated state thereof to the actuated state thereof in response to retraction of the pull cable to which it is coupled;wherein each of the first slack removal assembly and the second slack removal assembly includes a rotatable spool, wherein the first manner comprises linear motion of the rotatable spool, and wherein the second manner comprises rotation of the rotatable spool;wherein each of the rotatable spools comprises a helical channel configured to receive a portion of the pull cable to which the rotatable spool is coupled;wherein each of the first slack removal assembly and the second slack removal assembly further comprises an adjustment device operable to selectively rotate the corresponding rotatable spool, wherein the adjustment device is accessible through an opening in the proximal side of the casing;wherein in each of the first slack removal assembly and the second slack removal assembly, the rotatable spool includes a gear portion and the adjustment device includes a worm engaged with the gear portion;wherein each of the first slack removal assembly and the second slack removal assembly further comprises a retaining system configured to selectively retain the corresponding worm in a plurality of discrete rotational positions; andwherein in each of the first slack removal assembly and the second slack removal assembly, the worm includes a lobed portion comprising a plurality of radial lobes, the retaining system comprises a retaining member and a biasing member urging the retaining member into contact with the lobed portion, the retaining member is operable in a first position in each of the plurality of discrete rotational positions, the biasing member urges the retaining member toward the first position, and the lobed portion is configured to urge the retaining member against a force of the biasing member as the worm rotates from one of the plurality of discrete rotational positions toward another of the plurality of discrete rotational positions.