Slide Lock Mechanism for Fabric Cutting Precision
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Solution Overview
Problem
The challenge in quilting is accurately cutting fabric pieces to a uniform size using a rotary cutter, as the process often results in uneven cuts due to the need for frequent repositioning, leading to potential sliding of the cutting guide and subsequent discarding of incorrectly cut pieces.
Innovation Solution
A slide lock device with a base and handle that includes grip elements, which can be retracted or protruded to securely hold a sheet of fabric in place against a support surface, preventing sideways movement and ensuring uniform cutting along straight lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the quilter uses a rotary cutter with a ruler to cut fabric, then cutting speed is improved, but cutting precision deteriorates due to ruler sliding during repositioning
Solution Approach 1:
The slide lock device is positioned and secured to the fabric sheet before the cutting operation begins. The grip elements are engaged with the fabric in advance to prevent any sliding or movement during the cutting process, ensuring the ruler remains stationary throughout the entire cutting operation without requiring repositioning
Solution Approach 2:
The slide lock device acts as an intermediary between the ruler and the fabric sheet. It provides a stable connection point that secures the fabric to the support surface, preventing relative movement between the fabric and ruler during cutting, thereby maintaining cutting precision while allowing continuous cutting operations
2Manufacturing precision
If the quilter presses down hard on the ruler to prevent sliding, then cutting precision is improved, but ease of operation deteriorates due to increased physical effort and frequent stopping
Solution Approach 1:
The manual pressing action is extracted from the cutting process and replaced by the mechanical grip elements of the slide lock device. The grip elements provide continuous securing force without requiring the quilter to apply manual pressure or stop the cutting operation to reposition their hand
Solution Approach 2:
The slide lock device secures itself to the fabric sheet through the engagement of its grip elements with the fabric material. Once positioned, the device maintains its own securing function throughout the cutting process without requiring continuous manual intervention or adjustment by the quilter
Data Source
AI summary
A slide lock includes a slide lock base having a plurality of grip element openings; a slide lock handle carried by the slide lock base and positional in a released position and a locked position relative to the slide lock base; and a plurality of grip elements carried by the slide lock handle and disposed in the grip element openings, respectively. The grip elements are retracted in the grip element openings, respectively, when the slide lock handle is in the released position and the grip elements protrude from the grip element openings, respectively, when the slide lock handle is in the locked position.