Sliding Door Frame Measuring Tool for Squareness Verification
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Solution Overview
Problem
Current methods for measuring door and window frames are inaccurate and prone to human error due to the flexibility of tape measures and inconsistencies between technicians, leading to potential structural damage from misalignment.
Innovation Solution
A slidable distance measuring tool with a channel and cap configuration, including a securing mechanism and measuring scale, designed to provide consistent and accurate measurements by determining if a frame is out of square by comparing measurements across various regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a standard tape measure is used to measure door and window frames, then the measuring process is simple and flexible, but the measurement accuracy deteriorates due to flexibility causing sag or bend across the length
Solution Approach 1:
The measuring device is divided into multiple rigid segments (first elongated member and second elongated member) that can be individually positioned and secured. Each segment maintains its own rigidity, preventing the sagging and bending issues inherent in flexible tape measures while still allowing the overall device to adapt to different measuring scenarios.
Solution Approach 2:
The device incorporates a sliding mechanism where the second elongated member can slide within the channel of the first elongated member, allowing dynamic adjustment of the measuring configuration. This dynamic structure enables the device to adapt to various frame sizes and shapes while maintaining measurement accuracy through rigid contact points.
2Device complexity
If a standard tape measure is used for measuring, then the device is simple and lightweight, but reliability deteriorates due to substantial human error and inconsistency between technicians
Solution Approach 1:
The device features self-aligning contact points with the frame surface and a securing mechanism that automatically locks the measuring configuration once the members are positioned. This self-service capability eliminates the need for technician judgment and manual adjustment, ensuring consistent and reliable measurements across different users without requiring complex procedures.
3Measurement precision
If a slidable measuring tool with channel and cap configuration is used, then measurement accuracy and consistency improve, but device complexity increases compared to a standard tape measure
Solution Approach 1:
The measuring device is designed with universal end caps that can contact various frame surfaces (vertical jambs, horizontal sills, diagonal surfaces) and a sliding mechanism that adapts to different frame dimensions. This multi-functionality allows a single device structure to handle multiple measuring scenarios, justifying the increased complexity by eliminating the need for multiple specialized tools.
4Weight of moving object
If the second elongated member slides within the channel of the first member, then the device becomes portable and compact, but the securing mechanism complexity increases
Solution Approach 1:
The securing mechanism replaces complex multi-component locking systems with a simple friction-based interface between the sliding second member and the channel walls of the first member. The channel geometry itself provides the securing function through friction and geometric constraint, eliminating the need for additional screws, clips, or locking mechanisms while maintaining the ability to secure the measuring configuration.
Data Source
AI summary
An extendable measuring tool for measuring an alignment of a door or window frame. Specifically, the measuring tool is configured for determining if a door or window frame is out of square by measuring various regions of a frame and comparing the measurements to each other. In aspect of the invention, the tool includes a first carrier member having a channel and a first cap fixed to one end, and a second sliding member having a measuring scale on one surface and a second cap fixed to one end, wherein the second sliding member is at least partially disposed within the channel of the first carrier member and slides therein.