The present disclosure relates to the field of door locks. More specifically, the present disclosure relates to a multipoint door locking system.
One of the most commonly used types of locks securing doors in residential and commercial applications is the deadbolt. As is well-known, a deadbolt can only be moved between its retracted (unlocked) and extended (locked) positions by rotating a lock cylinder with a key. The deadbolt, when in its extended position, penetrates into a bolt opening of a door frame. It is difficult to defeat a deadbolt by so-called “jimmying” action. Regardless, most doors locked with deadbolts can be opened by exerting on such door a brute force sufficient to break the frame in the bolt opening area.
Conventional multipoint door locks alleviate this problem by providing additional elements that extend from the door into the door frame when locked. The amount of force required to overcome multipoint door locks is multiplied in view of the number of additional elements.
However, conventional multipoint door locks are expensive in part because they require important modifications to the doors on which they are installed. In fact, many doors cannot be modified to accommodate the installation of conventional multipoint door locks. When it is possible to install a conventional multipoint door lock on an existing door, this can only be achieved through a labor-intensive process. Some doors are provided with factory-installed multipoint door locks; however the cost of these doors is usually prohibitive
Therefore, there is a need for techniques that compensate for above described limitations of conventional multipoint door locks.
According to the present disclosure, there is provided a multipoint door lock system for a door having on its edge a deadbolt and a secondary bore separated from the deadbolt. The system comprises a door frame, a pivotable latch, a lever and a translating member. The door frame has a strike jamb, a bolt opening provided in the strike jamb being adapted to receive the deadbolt, the strike jamb having a secondary opening positioned to face the secondary bore of the door when the door is closed in the door frame. The pivotable latch has a locking recess, a door-actuated tip and a door-locking tip. The pivotable latch is mounted in the door frame so that the door-actuated tip can protrude through the secondary opening of the strike jamb as the pivotable latch rotates. The pivotable latch is configured to rotate when the edge of the door pushes the door-actuated tip into the door frame, causing the door-locking tip to enter in the secondary bore of the door. The lever is mounted in the door frame and is movable between a resting position facing the bolt opening when the deadbolt is not inserted in the bolt opening and a locking position adjacent to the resting position when the deadbolt is inserted in the bolt opening. The translating member has a proximal end operatively connected to the lever and a distal end extending toward the locking aperture of the pivotable latch. The translating member takes a retracted position when the lever is in the resting position, leaving the distal end of the translating member outside the locking recess of the pivotable latch. The translating member takes an extended position when the lever is in the locking position, inserting the distal end of the translating member in the locking recess to lock the pivotable latch.
According to the present disclosure, there is also provided a multipoint door lock system. The system comprises a door, a door frame, a pivotable latch, a lever and a translating member. The door has on its edge a deadbolt and a secondary bore separated from the deadbolt. The door frame has a strike jamb, a bolt opening provided in the strike jamb being adapted to receive the deadbolt, the strike jamb having a secondary opening positioned to face the secondary bore of the door when the door is closed in the door frame. The pivotable latch has a locking recess, a door-actuated tip and a door-locking tip. The pivotable latch is mounted in the door frame so that the door-actuated tip can protrude through the secondary opening of the strike jamb as the pivotable latch rotates. The pivotable latch is configured to rotate when the edge of the door pushes the door-actuated tip into the door frame, causing the door-locking tip to enter in the secondary bore of the door. The lever is mounted in the door frame and is movable between a resting position facing the bolt opening when the deadbolt is not inserted in the bolt opening and a locking position adjacent to the resting position when the deadbolt is inserted in the bolt opening. The translating member has a proximal end operatively connected to the lever and a distal end extending toward the locking aperture of the pivotable latch. The translating member takes a retracted position when the lever is in the resting position, leaving the distal end of the translating member outside the locking recess of the pivotable latch. The translating member takes an extended position when the lever is in the locking position, inserting the distal end of the translating member in the locking recess to lock the pivotable latch.
According to the present disclosure, there is also provided a multipoint door lock system for a door having on its edge a deadbolt and a secondary bore separated from the deadbolt. The system comprises a door frame, a pivotable latch, a lever and a translating member. The pivotable latch is mounted in the door frame and has a door-locking tip configured to enter the secondary bore of the door through a secondary opening of the door frame when the door is closed in the door frame. The lever is mounted in the door frame and is configured to move from a resting position to a locking position upon insertion of the deadbolt in a bolt opening of the door frame. The translating member is mounted in the door frame and has a proximal end operatively connected to the lever. The translating member is configured to move from a retracted position to an extended position when the lever is moved to the locking position, a distal end of the translating member locking the pivotable latch to prevent the door-locking tip from exiting the secondary bore of the door when the deadbolt is inserted in the bolt opening.
The present disclosure further introduces a multipoint door lock system. The system comprises a door, a door frame, a pivotable latch, a lever and a translating member. The door has on its edge a deadbolt and a secondary bore separated from the deadbolt. The pivotable latch is mounted in the door frame and has a door-locking tip configured to enter the secondary bore of the door through a secondary opening of the door frame when the door is closed in the door frame. The lever is mounted in the door frame and is configured to move from a resting position to a locking position upon insertion of the deadbolt in a bolt opening of the door frame. The translating member is mounted in the door frame and has a proximal end operatively connected to the lever. The translating member is configured to move from a retracted position to an extended position when the lever is moved to the locking position, a distal end of the translating member locking the pivotable latch to prevent the door-locking tip from exiting the secondary bore of the door when the deadbolt is inserted in the bolt opening.
The present disclosure further relates to a multipoint door lock system for a door having on its edge a deadbolt and a secondary bore separated from the deadbolt. The system comprises a door frame, a latch and a translating member. The door frame has a bolt opening adapted for insertion of the deadbolt and a secondary opening. The latch is mounted in the door frame. The latch takes an activable position when the door is opened and a pre-armed position when the door is closed. A door-locking tip of the latch protrudes from a secondary opening of the door frame and into the secondary bore when the door is closed. The translating member is mounted in the door frame and is actuated by insertion of the deadbolt in the bolt opening to lock the pivotable latch in its pre-armed position within the secondary bore.
The foregoing and other features will become more apparent upon reading of the following non-restrictive description of illustrative embodiments thereof, given by way of example only with reference to the accompanying drawings.
Embodiments of the disclosure will be described by way of example only with reference to the accompanying drawings, in which:
Like numerals represent like features on the various drawings.
Various aspects of the present disclosure generally address one or more of the deficiencies of conventional multipoint door locks.
Generally speaking, elements of the present multipoint door lock are integrated in a door frame, more specifically in a subframe that can be mounted on a conventional door frame. An ordinary door provided with a deadbolt is mounted in the subframe. The ordinary door is modified with the simple cutting of one or more additional bores, or secondary bores, on its edge, separated from the deadbolt. One or more pivotable latches are provided in the subframe, each pivotable latch corresponding to one secondary bore. The pivotable latches protrude through the subframe in secondary openings that will face the secondary bores of the door when the door is closed in its frame. When the door is open, door-actuated tips of the pivotable latches protrude from the frame; in some embodiments, the pivotable latches may pivot freely in the subframe. Upon closing the door, the edge of the door activates the pivotable latches by pushing on the door-actuated tips, causing a rotation of the pivotable latches. The door-actuated tips penetrate into the frame, causing door-locking tips of the pivotable latches to protrude from the frame and enter in the secondary bores of the door. Though the door-locking tips are now positioned in the secondary bores, the door remains unlocked because the pivotable latches will easily rotate, causing the door-locking tips to re-enter the frame and the door-actuated tips to protrude again from the frame if the door is opened. When the door is closed, the position of the door-locking tips of the latches within the secondary bores of the door effectively pre-arms the multipoint door lock without however preventing normal, keyless opening of the door because the door is yet locked when the multipoint door lock is in this pre-armed condition. Upon locking of the door, the deadbolt pushes on a lever provided in a bolt opening of the subframe. This lever displaces one or more translating members that lead toward the pivotable latches. A tip of each translating member penetrates in a recess of the pivotable latches, preventing their rotation. At that time, the deadbolt and the pivotable latches each form a locking point for the door. The pivotable latches now effectively lock the door without moving from their pre-armed positions. Unlocking the door causes the deadbolt to exit from the bolt opening of the subframe. The translating members are pulled back, their tip no longer locking the pivotable latches that however maintain their pre-armed positions until the door is opened again.
Referring now to the drawings,
In some embodiments, the stopper 33 of the pivotable latch 24 interfaces with the leaf spring 25 shown on
In the multipoint door locking system as shown in the previous drawings, nothing prevents accidentally moving the pivotable latch 24 so that the door-locking tip 28 protrudes from the subframe 8 when the door is open. In a situation where, for instance, a child would play with the pivotable latch 24 and place it in the incorrect position, the edge of the door could hit the door-locking tip 28 upon closing, potentially damaging the door or the multipoint door locking system. The following drawings illustrate a safety device that may optionally be added to the multipoint door locking device. In more details,
Upon closing the door, the edge of the door at first causes the tab 52 to be pushed into the subframe 8, rotating the U-shaped lever 54, raising the rod 56 and the block 58, and bringing the tips of the locking rods 64 and 66 out of the locking recesses 30 of the pivotable latches 24. Thereafter, the edge of the door pushes on the pivotable latches 24 as explained hereinabove. When the door is opened again, it first causes the pivotable latches 24 to rotate so that their door-actuated tips 26 protrude again. The door then stops pushing on the tab 52, causing the rod 56, the block 58 and the locking rods 64 and 66 to be lowered, blocking the pivotable latches 24 again.
In variants in which one or more additional latches are implemented in the multipoint door locking system, it is contemplated that the safety device 50 may include a corresponding locking rod for each latch. In a specific variant having one pivotable latch 24, the block 58 may be omitted, the rod 56 and the locking rod 64 being optionally combined as a single element for blocking the pivotable latch 24. The safety device 50 can be used in combination with all variants of the multipoint door locking device
Those of ordinary skill in the art will realize that the description of the multipoint door locking system is illustrative only and is not intended to be in any way limiting. Other embodiments will readily suggest themselves to such persons with ordinary skill in the art having the benefit of the present disclosure. Furthermore, the disclosed multipoint door locking system may be customized to offer valuable solutions to existing deficiencies of conventional multipoint door locks.
In the interest of clarity, not all of the routine features of the implementations of the multipoint door locking system are shown and described. It will, of course, be appreciated that in the development of any such actual implementation of the multipoint door locking system, numerous implementation-specific decisions may need to be made in order to achieve the developer's specific goals, such as compliance with application-, system-, and business-related constraints, and that these specific goals will vary from one implementation to another and from one developer to another. Moreover, it will be appreciated that a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking of engineering for those of ordinary skill in the field of door locks having the benefit of the present disclosure.
The present disclosure has been described in the foregoing specification by means of non-restrictive illustrative embodiments provided as examples. These illustrative embodiments may be modified at will. The scope of the claims should not be limited by the embodiments set forth in the examples, but should be given the broadest interpretation consistent with the description as a whole.
Filing Document | Filing Date | Country | Kind |
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PCT/IB2016/056296 | 10/19/2016 | WO | 00 |
Number | Date | Country | |
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62245030 | Oct 2015 | US |