Two-Piece Striker Plate Adjusting Lock Alignment
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Solution Overview
Problem
Conventional striker plates for entry doors become weakened over time as the position of the opening in the jamb changes due to door and lock replacements, leading to a loss of structural integrity and the need for costly and time-consuming jamb replacement or filling and re-drilling.
Innovation Solution
A two-piece striker plate system comprising a lower plate attached to the jamb and an upper plate that translates relative to the lower plate, allowing adjustment without removing the lower plate, to maintain alignment with the lock throw as locks are replaced, ensuring consistent security and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the opening size in the jamb is increased to accommodate lock replacements, then the strike plate can coordinate with the new throw position, but the structural integrity of the door is weakened and fasteners have less material to retain
Solution Approach 1:
The strike plate is divided into two separate pieces: a first strike plate piece and a second strike plate piece. The first piece remains fixed in the jamb while the second piece can be adjusted and repositioned to accommodate changes in lock throw position. This segmentation allows the strike plate system to adapt to different lock positions without increasing the opening size in the jamb, thereby maintaining the structural integrity and fastener retention of the door frame.
2Adaptability or versatility
If the strike plate is relocated to coordinate with the new throw position, then the lock can function properly, but the fasteners securing the strike plate have less material to be retained by
Solution Approach 1:
By separating the strike plate into two independent pieces, the first strike plate piece remains securely fastened to the jamb at its original position, maintaining full fastener retention. The second strike plate piece can be independently adjusted to match the new lock throw position. This segmentation ensures that the fastening reliability of the first piece is not compromised when adjusting the second piece.
3Adaptability or versatility
If the jamb is replaced to accommodate lock position changes, then the strike plate can be properly positioned, but a substantial amount of work is required to accomplish the replacement
Solution Approach 1:
The strike plate is segmented into a first piece that remains permanently installed in the jamb and a second piece that can be easily adjusted. When lock position changes occur, only the second strike plate piece needs to be removed and repositioned, rather than replacing the entire jamb. This significantly reduces the time and work required for adjustments.
4Adaptability or versatility
If the existing opening in the jamb is filled and a new opening is drilled, then the strike plate can be repositioned, but time is required for the patch to cure properly
Solution Approach 1:
The strike plate system uses a removable second piece that can be adjusted without modifying the jamb structure. This eliminates the need to fill and re-drill openings in the jamb, thereby eliminating the curing time required for patches while still allowing the strike plate to be repositioned to accommodate lock changes.
Data Source
AI summary
A system and method for adjusting the location of the striker plate relative to the throw of a lock includes two plates, and upper plate and a lower plate, that adjustably translate relative to each other. The lower plate is affixed to a door jamb and the other plate slides relative to the upper plate. This adjustable striker plate system provides users with the ability to relocate the upper plate over time to compensate for different locks on the door, or movement of the door jamb over time.