Embroidery Frame Transport Device Lock Release Mechanism
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Solution Overview
Problem
The existing embroidery frame transport devices require cumbersome operations for attaching and detaching the embroidery frame, involving separate steps for switching the lock mechanism and pulling out the frame.
Innovation Solution
An embroidery frame transport device with a carriage, guide portion, rotation shaft, and lock release lever that simplifies the mounting and removing process by using a lock release lever with a first restricting portion and contact portion to restrict and release the embroidery frame's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock mechanism with separate lock member switching operation is used, then the embroidery frame can be securely held, but the detachment operation becomes troublesome and complex
Solution Approach 1:
The patent combines the lock release function and frame detachment function into a single integrated operation. The lock member automatically releases when the embroidery frame is pulled in the removing direction, eliminating the need for separate lock release and detachment operations. This merging of functions directly resolves the contradiction by maintaining secure holding during operation while simplifying the detachment process to a single pulling motion.
2Reliability
If a lock mechanism requiring separate operations is used, then the coupling portion can be securely mounted, but the overall mounting and removing process requires multiple steps
Solution Approach 1:
The lock member is pre-configured in a locked state that automatically transitions to unlocked when the frame is removed. The guiding surface on the lock member is designed in advance to convert the pulling motion directly into lock release. This preliminary configuration eliminates the need for separate lock release steps, reducing the overall process complexity while maintaining secure mounting during operation.
3Strength
If a traditional lock mechanism is used, then the coupling portion can be held firmly, but the user must perform multiple separate operations
Solution Approach 1:
The patent merges the lock release action and frame removal action into a single continuous motion. The lock member's guiding surface is designed to automatically transition from the locked position to the unlocked position as the frame is pulled away. This eliminates the time required for separate lock release operations while maintaining strong holding force during embroidery work.
Data Source
AI summary
An embroidery frame transport device includes a carriage, a guide portion, a rotation shaft, and a lock release lever including a first restricting portion and a contact portion. The lock release lever is configured to rotate to a first position and a second position around the rotation shaft. The first restricting portion contacts the coupling portion to restrict an embroidery frame from moving in a removing direction by moving to the first position when the embroidery frame is moved in a mounting direction in a process of mounting the coupling portion on the carriage. The contact portion contacts the coupling portion and presses the embroidery frame in the removing direction as a result of the lock release lever moving to a third position when the lock release lever is rotated in a releasing direction while the coupling portion is mounted on the carriage.