US 2012/0175892 A1Published application

Outer Operational Device for Panic Exit Door Lock

AssigneeI-Tek Metal Mfg. Co., Ltd.

InventorChun-Meng Shen

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Abstract

An outer operational device includes a cover mounted to an outer side of a door. The outer operational device includes a handle and an actuating member operatively connected between the handle and a latch. A sliding block is movable between an alignment position and an alignment position under control of a driving device through electrification. When the sliding block is in the engagement position, a locking block locks the actuating member to prevent rotation of the handle, and the outer operational device is in a locked state avoiding retraction of the latch. When the sliding block is in the disengagement position, the sliding block allows rotation of the actuating member and the handle, and the outer operational device is in an unlocked state allowing retraction of the latch.

Claims8

Dependent claims

An outer operational device for a panic exit door lock, comprising, in combination:

a cover (20) adapted to be mounted to an outer side (10B) of a door (10), with the cover (20) including a sidewall (202) and an annular wall (204) together defining a space (200), with a protrusion (215) formed on an inner face of the sidewall (202), with the protrusion (215) including a first track (219) extending along a first axis (X) and a second track (221) extending along a second axis (Y) perpendicular to the first axis (X) and in communication with the first axis (X);
a handle (24) mounted to an outer side of the cover (20), with the handle (24) rotatable about a third axis (Z) perpendicular to the first and second axes (X, Y) between first and second positions, with a shank (242) fixed to the handle (24) to rotate therewith, with the shank (242) including a non-circular engaging portion (244) extending into the space (200) of the cover (20);
an actuating member (36) mounted in the space (200) and including an end (360) and a non-circular connecting hole (364) engaged with the engaging portion (244) to rotate therewith, with the actuating member (36) further including an engaging block (369) aligned with the first track (219);
a driving member (40) rotatably received in the space (200) of the cover (20), with the driving member (40) including a wing (402) and a driving rod (412), with the driving rod (412) extending along the third axis (Z), with the driving rod (412) adapted to be operatively connected to a latch (124) of a lock (12) mounted in the door (10), so that the latch (124) is moved from a latching position to an unlatching position when the handle (24) is rotated from the first position to the second position;
a link (34) including an upper end (340) and a lower end (342), with the upper end (340) of the link (34) pivotably connected to the wing (402) of the driving member (40), with the lower end (342) of the first link (34) pivotably connected to the end (360) of the actuating member (36);
a locking block (600) slideably received in the first track (219) along the first axis (X) between an engagement position and a disengagement position, with the locking block (600) including top and bottom sides spaced along the first axis (X), with an engaging groove (602) extending from the top side towards but spaced from the bottom side, with the locking block (600) further including a follower portion (606), with the engaging block (369) of the actuating member (36) engaged in the engaging groove (602) when the locking block (600) is in the engagement position, preventing rotation of the actuating member (36) about the third axis (Z), with the engaging block (369) of the actuating member (36) disengaged from the engaging groove (602) when the locking block (600) is in the disengagement position, allowing rotation of the actuating member (36) about the third axis (Z),
a sliding block (608) slideably received in the second track (221) along the second axis (Y) between an alignment position and a misalignment position, with the sliding block (608) including a depression (620) extending along the first axis (X), with the sliding block (608) further including first and second engagement grooves (616, 618) spaced along the second axis (Y), with the follower portion (606) of the locking block (600) engaged in the depression (620) of the sliding block (608) and with the locking block (600) in the disengagement position when the sliding block (608) is in the alignment position, with a face of the depression (620) of the sliding block (608) pushing the follower portion (606) of the locking block (600) to move the locking block (600) to the engagement position when the sliding block (608) is moved from the alignment position to the misalignment position;
a driving device (626) mounted in the space (200) of the cover (20) and spaced from the second track (221) along the first axis (X), with the driving device (626) including an actuating rod (628), with the driving device (626) electrically connected to a power supply (640);
an actuating plate (630) fixed to the actuating rod (628) to move therewith, with the actuating plate (630) including an insertion section (634),
wherein when the outer operational device (2) is in a first mode, the insertion section (634) is engaged in the first engagement groove (616) of the sliding block (608), when the driving device (626) is not electrified by the power supply (640), the sliding block (608) is in the alignment position, and the locking block (600) is in the disengagement position, the handle (24) is rotatable from the first position to the second position, so that outer operational device (2) is in an unlocked state, the handle (24) is rotatable to rotate the actuating member (36), the driving member (40) is rotated through the link (34), moving the latch (124) from the latching position to the unlatching position,
wherein when the outer operational device (2) is in the first mode and when the driving device (626) is electrified by the power supply (640), the actuating rod (628) actuates the actuating plate (630) to move the sliding block (608) from the alignment position to the misalignment position, the locking block (600) is moved from the disengagement position to the engagement position, so that the engaging groove (602) of the locking block (600) engages with the engaging block (369) of the actuating member (36), the actuating member (36), the shank (242), and the handle (24) are not rotatable, the outer operational device (2) is in a locked state,
wherein when the outer operational device (2) is in a second mode, the insertion section (634) is engaged in the second engagement groove (618) of the sliding block (608), when the driving device (626) is not electrified by the power supply (640), the sliding block (608) is in the misalignment position, and the locking block (600) is in the engagement position, the engaging groove (602) of the locking block (600) engages with the engaging block (369) of the actuating member (36), the actuating member (36), the shank (242), and the handle (24) are not rotatable, the outer operational device (2) is in a locked state,
wherein when the outer operational device (2) is in the second mode and when the driving device (626) is electrified by the power supply (640), the actuating rod (628) actuates the actuating plate (630) to move the sliding block (608) from the misalignment position to the alignment position, the locking block (600) is moved from the engagement position to the disengagement position, the handle (24) is rotatable from the first position to the second position, so that outer operational device (2) is in the unlocked state, the handle (24) is rotatable to rotate the actuating member (36), the driving member (40) is rotated through the link (34), moving the latch (124) from the latching position to the unlatching position.

10 more elements

Dependencies are inferred from the claim text.

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Abstract

An outer operational device for a panic exit door lock, comprising, in combination:

a cover (20) adapted to be mounted to an outer side (10B) of a door (10), with the cover (20) including a sidewall (202) and an annular wall (204) together defining a space (200), with a protrusion (215) formed on an inner face of the sidewall (202), with the protrusion (215) including a first track (219) extending along a first axis (X) and a second track (221) extending along a second axis (Y) perpendicular to the first axis (X) and in communication with the first axis (X);
a handle (24) mounted to an outer side of the cover (20), with the handle (24) rotatable about a third axis (Z) perpendicular to the first and second axes (X, Y) between first and second positions, with a shank (242) fixed to the handle (24) to rotate therewith, with the shank (242) including a non-circular engaging portion (244) extending into the space (200) of the cover (20);
an actuating member (36) mounted in the space (200) and including an end (360) and a non-circular connecting hole (364) engaged with the engaging portion (244) to rotate therewith, with the actuating member (36) further including an engaging block (369) aligned with the first track (219);
a driving member (40) rotatably received in the space (200) of the cover (20), with the driving member (40) including a wing (402) and a driving rod (412), with the driving rod (412) extending along the third axis (Z), with the driving rod (412) adapted to be operatively connected to a latch (124) of a lock (12) mounted in the door (10), so that the latch (124) is moved from a latching position to an unlatching position when the handle (24) is rotated from the first position to the second position;
a link (34) including an upper end (340) and a lower end (342), with the upper end (340) of the link (34) pivotably connected to the wing (402) of the driving member (40), with the lower end (342) of the first link (34) pivotably connected to the end (360) of the actuating member (36);
a locking block (600) slideably received in the first track (219) along the first axis (X) between an engagement position and a disengagement position, with the locking block (600) including top and bottom sides spaced along the first axis (X), with an engaging groove (602) extending from the top side towards but spaced from the bottom side, with the locking block (600) further including a follower portion (606), with the engaging block (369) of the actuating member (36) engaged in the engaging groove (602) when the locking block (600) is in the engagement position, preventing rotation of the actuating member (36) about the third axis (Z), with the engaging block (369) of the actuating member (36) disengaged from the engaging groove (602) when the locking block (600) is in the disengagement position, allowing rotation of the actuating member (36) about the third axis (Z),
a sliding block (608) slideably received in the second track (221) along the second axis (Y) between an alignment position and a misalignment position, with the sliding block (608) including a depression (620) extending along the first axis (X), with the sliding block (608) further including first and second engagement grooves (616, 618) spaced along the second axis (Y), with the follower portion (606) of the locking block (600) engaged in the depression (620) of the sliding block (608) and with the locking block (600) in the disengagement position when the sliding block (608) is in the alignment position, with a face of the depression (620) of the sliding block (608) pushing the follower portion (606) of the locking block (600) to move the locking block (600) to the engagement position when the sliding block (608) is moved from the alignment position to the misalignment position;
a driving device (626) mounted in the space (200) of the cover (20) and spaced from the second track (221) along the first axis (X), with the driving device (626) including an actuating rod (628), with the driving device (626) electrically connected to a power supply (640);
an actuating plate (630) fixed to the actuating rod (628) to move therewith, with the actuating plate (630) including an insertion section (634),
wherein when the outer operational device (2) is in a first mode, the insertion section (634) is engaged in the first engagement groove (616) of the sliding block (608), when the driving device (626) is not electrified by the power supply (640), the sliding block (608) is in the alignment position, and the locking block (600) is in the disengagement position, the handle (24) is rotatable from the first position to the second position, so that outer operational device (2) is in an unlocked state, the handle (24) is rotatable to rotate the actuating member (36), the driving member (40) is rotated through the link (34), moving the latch (124) from the latching position to the unlatching position,
wherein when the outer operational device (2) is in the first mode and when the driving device (626) is electrified by the power supply (640), the actuating rod (628) actuates the actuating plate (630) to move the sliding block (608) from the alignment position to the misalignment position, the locking block (600) is moved from the disengagement position to the engagement position, so that the engaging groove (602) of the locking block (600) engages with the engaging block (369) of the actuating member (36), the actuating member (36), the shank (242), and the handle (24) are not rotatable, the outer operational device (2) is in a locked state,
wherein when the outer operational device (2) is in a second mode, the insertion section (634) is engaged in the second engagement groove (618) of the sliding block (608), when the driving device (626) is not electrified by the power supply (640), the sliding block (608) is in the misalignment position, and the locking block (600) is in the engagement position, the engaging groove (602) of the locking block (600) engages with the engaging block (369) of the actuating member (36), the actuating member (36), the shank (242), and the handle (24) are not rotatable, the outer operational device (2) is in a locked state,
wherein when the outer operational device (2) is in the second mode and when the driving device (626) is electrified by the power supply (640), the actuating rod (628) actuates the actuating plate (630) to move the sliding block (608) from the misalignment position to the alignment position, the locking block (600) is moved from the engagement position to the disengagement position, the handle (24) is rotatable from the first position to the second position, so that outer operational device (2) is in the unlocked state, the handle (24) is rotatable to rotate the actuating member (36), the driving member (40) is rotated through the link (34), moving the latch (124) from the latching position to the unlatching position.

10 more elements