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US 2006/0123859 A1Published application
Mortise lock with automatic projection of dead bolt
OwnerFermin Gonzalezinventor
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OwnerFermin Gonzalezinventor
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A mortise lock with automatic projection of dead bolt, which comprises a trigger support (7), a dead bolt retaining control (8), a control retaining catch (9), a rocking lever (10), a latch bolt stop (11), and an antipanic arm (12); wherein the trigger support (7) has suitable means of blocking an operating vertical slide of the dead bolt retaining control (8), which has a mount that slides vertically by gravity between respective upper and lower positions corresponding to the retracted and extended states, respectively, of the dead bolt (1); this dead bolt retaining control (8) also incorporates several means of hooking that operate in conjunction with the retaining catch of the control (9), other means that operate in conjunction with means of the trigger (3) suitable for blocking its operating vertical slide, other means of retention of the retracted state of the dead bolt (1) that operate in conjunction with a first stub (13) of the dead bolt lockplate (1a), and other means of reciprocal propulsion with respect to this first stub (13) of the dead bolt lockplate (1a).
A mortise lock with automatic projection of dead bolt, particularly a lock provided with a dead bolt (1), a latch bolt (2), a trigger (3) that is situated between the dead bolt (1) and the latch bolt (2) and that, when the door is brought into its frame and when this latch bolt retracts, is operatively retractable against a first spring (19), a guard (4), a follower (5) for an actuating knob, and a cylinder (6) for a combination key, wherein the dead bolt (1) of the lock can be retracted to actuate the follower (5), can be retracted to actuate the cylinder (6), and is mounted in the back point of a dead bolt lockplate (1a), the top edge of which has several stop means of the respective retracted and extended positions of this dead bolt (1), the latch bolt (2) of the lock can be retracted to actuate the follower (5) or the cylinder (6), the trigger (3) of the lock lacks an opening in the strike plate in the doorframe, and the guard (4) of the lock has a projection (4a) transverse to the dead bolt lockplate (1a), which, by vertical displacement, is capable of operating or not operating in conjunction with said stop means of the retracted and extended positions of the dead bolt (1), characterized in that it comprises a trigger support (7), a dead bolt retaining control (8), a control retaining catch (9), a rocking lever (10), a latch bolt stop (11), and an antipanic arm (12);
A mortise lock with automatic projection of dead bolt according to the preceding claim, further characterized in that, in said trigger support (7), the means of blocking the operating vertical displacement of the dead bolt retaining control (8) consist of a side lug (24) that has an upper horizontal surface (27) and a lower beveled surface (28).
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that, in said dead bolt retaining control (8), the means of hooking consist of a first hook (29) that is just above the level of the tilted position of the control retaining catch (9) and suitably retracted in relation to the start of the retraction travel distance of the latch bolt (2).
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that, in said dead bolt retaining control (8), the means of blocking its operating vertical displacement, which operate in conjunction with other means of the trigger (3), consist of an upper pivot (25), which, in relation to the extended and retracted positions of the trigger (3), remains respectively aligned or not aligned in the vertical direction, this upper pivot (25) remaining respectively opposite the horizontal (27) and beveled (28) surfaces of the side lug (24).
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that, in said dead bolt retaining control (8), the means of retention of the retracted state of the dead bolt (1) consist of an angled opening (30) that is reciprocal to said first stub (13) of the dead bolt lockplate (1a) and is situated at a level suitably lower than that of the first stub (13), in relation to said upper position of the dead bolt retaining control (8),
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that, in said dead bolt retaining control (8), the means of reciprocal propulsion between it and the first stub (13) of the dead bolt lockplate (1a) consist of a ramp (31) that is made in the front side of the dead bolt retaining control (8), joined in a continuous manner with the backside edge of its angled opening (30).
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that said control retaining catch (9) is installed in a carriage (32) fastened in the tail end of the internal latch bolt (2) to the case of the lock.
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that, in the latch bolt stop (11), on both sides of the central axis (18), there extend respective members, a first (33) and a second (34), the first member (33) being capable of rotating between raised and lowered positions, respectively, in which its end interferes or does not interfere with the retraction travel distance of a lateral projection (35) of said carriage (32) of the tail end of the latch bolt (2) at the time when, in relation to the opening rotation of the follower (5), the end of the second member (34) is positioned directly on a peripheral dog (36) of this follower (5) or is suitably advanced toward the same at the time when, in said lowered position, the first member (33) is positioned below a second hook (37) provided in the trigger support (7), there existing a third spring (38) that is positioned at the first member (33) to counter the action produced by the opening rotation of the follower (5), which pushes the lowered position of the first member (33) against this third spring (38).
A mortise lock with automatic projection of dead bolt according to the preceding claims, further characterized in that the stop means of the dead bolt lockplate (1a) consist in the fact that the upper edge of the dead bolt lockplate (1a) forms, from front to back in a successively descending way, a first step (39), a second step (40), and a back groove (41).
Dependencies are inferred from the claim text.