Mortise Jig Assembly for Door Hinge Recess Alignment
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Solution Overview
Problem
Existing jig devices lack precision in locating a hinge recess in a door, as they do not provide a reliable method for accurately aligning and cutting the recess with the door edge.
Innovation Solution
A longitudinally elongated block with multiple mortises is clamped to the door, and a jig panel with a guide hole is positioned against the edge to engage the mortises, allowing precise alignment and cutting of the hinge recess using a router or similar tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing jig devices are used to locate hinge recess, then the general positioning can be achieved, but the precision and reliability of alignment with the door edge is insufficient
Solution Approach 1:
The jig device is divided into separate functional components: a block with multiple mortises for positioning, a jig panel with a guide hole for alignment, and a clamp for securing. This segmentation allows each component to perform its specific function optimally, ensuring precise and reliable location of the hinge recess while maintaining ease of assembly and adjustment.
2Ease of operation
If a simple clamp is used to secure the jig, then the ease of operation is improved, but the manufacturing precision and reliability of the location is compromised
Solution Approach 1:
The jig panel acts as an intermediary component between the block and the door edge. It features a guide hole that aligns with the mortises in the block and provides a precise reference point for cutting the hinge recess. This intermediary element ensures that the simple clamping action translates into accurate positioning and reliable alignment.
Data Source
AI summary
A mortise jig assembly includes a block that is longitudinally elongated. The block has plurality of mortises therein and the block is clamped to a face of a door such that selected ones the mortises is aligned with an edge of the door. A jig panel is provided and the jig panel is positionable against the edge of the door to engage respective ones of the mortises thereby retaining the jig panel at a selected location on the edge of the door. The jig panel has a guide hole therein thereby facilitating the guide hole to be aligned with a preferred location to cut a hinge recess in the edge of the door. A pair of bolts is each extendable through the jig panel and the block for attaching the jig panel to the block.