Locks – Operating mechanism – Using a powered device
Reexamination Certificate
1999-07-07
2001-06-26
Barrett, Suzanne Dino (Department: 3627)
Locks
Operating mechanism
Using a powered device
C070S448000, C070S280000
Reexamination Certificate
active
06250119
ABSTRACT:
TECHNICAL FIELD
The object of the present invention is a mortise lock of the type comprising a chute-type housing closed by a cover and accommodating the entire lock actuating and bolting mechanism, this mechanism consisting of an actuating device, a control rod assembly, movable longitudinally in the housing, and of at least one similar bolt or locking device, disposed so as to be spaced from the actuating device and capable of projecting from the housing when the lock is in the closed position, the rod assembly ensuring the connection between the actuating device and locking device.
PRIOR ART
A device of this type is known, in particular, for making multipoint locks actuated by a mechanical device and is generally designed so as to be projecting on the inner side of the door.
In this type of device, the drive mechanism of the lock is formed of a complete assembly operating independently of the housing and inserted therein, the rod assembly simply ensuring a connection between the actuating elements that are projecting from the drive mechanism and the locking devices.
Locking mechanisms are also known that are to be built into a door, generally in the stile of the door; this stile is either a wood piece or even a rectangular profiled metal section in the case of a metal door. In this case, these are complete sets: a complete lock with a bolt integrated in a casing or, in the case of multipoint locks, a lock integrated in a casing and deflectors that are built into the door, generally by mortising to the position of the lock and deflectors, with these elements then being connected by a rod assembly introduced longitudinally into the stile of the door.
When an electric lock is used, for obvious security reasons, one generally installs a lock having a mechanical opening device for the lock in case of a power failure. In this case, one is obliged, due to the mortising system of the lock in a mortise formed in the stile (generally a profiled metal section in the case of a metal door), to house a complete lock in the mortise comprising, in a single mortisable casing, the electric lock, the mechanical opening system and the bolt or locking device.
The document DE 44 01 971 A discloses a lock comprising a chute-type housing which accommodates the locking mechanism, the lock comprising an actuating device which is an electric motor and a control rod assemble, longitudinally movable in the housing. In this prior document, the lock is a multipoint electric lock, comprising at least two locking devices spaced from one another, the rod assembly directly connects locking devices together, integral with the housing, and slides in the housing by being guided thereon by means of said locking devices, any accessories it may have, but also to include, easily and effectively, in the form of mechanisms acting on the rod assembly the actuating device is an electric motor, a transmission mechanism ensures the transmission of movement between the actuating device and the rod assembly, the electric motor that consists of an actuating device controls the rod assembly both in the direction of closing and opening, via the transmission, and an auxiliary mechanical actuating device is also provided to control the rod assembly in the direction of opening.
In this embodiment, the lock consists of several separate sets, namely a chute-type housing, containing the rod assembly and the bolts, an actuating mechanism comprising the actuating device and the transmission, and a mechanical lock acting on the entire actuating mechanism
DESCRIPTION OF THE INVENTION
The present invention applies generally to electric mortise locks for doors which have metal stiles. It applies, in particular, to locks for such doors that include metal stiles as parts of the frame, either of the opening or of the casing of the door.
An object of the present invention is to rationalize the manufacture of both the mortise locks and doors having such locks.
This object is attained by providing that, in a lock of the type described in the preamble of claim
1
, in addition to the rod assembly, the housing accommodates the actuating device as well as the auxiliary mechanical actuating device and the actuating device and the auxiliary mechanical actuating device are separate from one another and arranged in separate locations in the housing, along the rod assembly.
An arrangement of this type in which the various elements of the lock mechanism are distributed over the rod assembly and are directly accessible on the entire housing, do not only permit one to simplify the installation of the lock and any accessories it may have, but also to include it easily and effectively in the form of mechanisms acting on the rod assembly and distributed over said rod assembly, a series of additional elements that permit, in a simple and inexpensive manner, the realization of reliable devices that increase the number of functions that can be carried out by the lock.
Advantageous embodiments of the lock of the invention are the subject of the subclaims.
Moreover, the fact of providing that the housing of the lock constitutes the door stile greatly simplifies the integration of the lock in the door during manufacture of the door, thus greatly reducing the cost of installing the lock on the door.
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Barrett Suzanne Dino
Birch & Stewart Kolasch & Birch, LLP
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