Door Lock Positioning Member for Precise Strike Plate Alignment
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Solution Overview
Problem
The challenge in installing door latches and strike plates lies in accurately positioning the deadbolt receiving plate and strike plate on a door frame, as current methods rely on approximation rather than precise alignment.
Innovation Solution
A method involving a positioning member or marking apparatus that attaches to the deadbolt, extends to the door frame, and retracts, allowing for precise alignment and marking of the plate's location, enabling accurate installation of the latch or bolt plate on the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the installer uses approximation methods to position the strike plate and latch bore, then the installation process is simple and quick, but the positioning precision is poor
Solution Approach 1:
The patent introduces a positioning member as an intermediary tool between the deadbolt and the strike plate installation process. This positioning member transfers the deadbolt's precise position to the strike plate location, enabling accurate positioning without complex measurement procedures. The positioning member acts as a mediator that carries alignment information from the moving deadbolt to the stationary strike plate opening.
Solution Approach 2:
The positioning member creates a copy or replica of the deadbolt's position and orientation at the strike plate location. By attaching the positioning member to the deadbolt and then transferring it to mark the strike plate opening, the system copies the precise spatial relationship without requiring complex measurement and calculation procedures.
2Manufacturing precision
If the installer uses approximation methods for aligning the strike plate, then the installation is faster, but the alignment accuracy deteriorates
Solution Approach 1:
The positioning member is prepared in advance with the appropriate shape and size to match the deadbolt cross-section. This preliminary preparation allows the positioning member to be quickly attached to the deadbolt and immediately transferred to mark the strike plate opening, eliminating time-consuming measurement and alignment procedures during the actual installation.
Solution Approach 2:
The positioning member serves as an intermediary that captures the deadbolt's position and transfers it to the strike plate location. This mediator eliminates the need for time-consuming approximation methods while ensuring high alignment accuracy, as the positioning member physically carries the alignment information from one location to another.
3Measurement precision
If a positioning member is attached to the deadbolt and extended to the door frame, then the marking precision improves, but the device complexity increases
Solution Approach 1:
The positioning member is designed as a simple, inexpensive tool that can be easily attached to the deadbolt, used for marking, and then discarded or reused. This disposable or temporary positioning member eliminates the need for complex, expensive, and permanent positioning systems, achieving high marking precision with minimal device complexity.
Solution Approach 2:
The positioning member creates a simple copy of the deadbolt's position and orientation at the strike plate location. By using a basic geometric replica rather than a complex measurement system, the patent achieves accurate marking while keeping the positioning device simple and easy to use.
Data Source
AI summary
A method and apparatus for marking positions for installing door lock elements of a door, the door attached to a frame having a header including comprising the steps of providing a positioning member, at least partially opening the door; attaching the positioning member to the door, while the door is closed causing the positioning member to attach to the door frame; and opening the door and removing the positioning member from the door; and using the at least one mark to install a strike plate, deadbolt receiving plate, and/or electric strike.