Needle threaders for a sewing machine
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMinoru Itoh, Toshio Sasaki
Life of this patent
Estimating the term…
Abstract
There is disclosed a needle threader comprizing a support provided with a needle accommodating notch and a thread guide groove, and a pair of resilient rollers rotatably mounted on the support and contacting at the respective peripheral edges with each other. In the needle threader, an eye of a needle accommodated in the needle accommodating notch is located on a tangent line passing through the contact portion of the pair of resilient rollers. A thread introduced via the thread guide groove towards the proximity of the contact portion of the pair of resilient rollers is gripped by and transferred through rotation of the resilient rollers, resulting in the thread being passed through the eye of the needle.
Claims4
A needle threader for threading the eye of a needle on a sewing machine with a frame, comprising
- a support movably mounted on said frame and provided with a needle accommodating notch,
- a pair of resilient rollers rotatably mounted on said support in the proximity of said notch, and contacting at the respective peripheral edge with each other for gripping the thread therebetween,
- means disposed between said support and said needle for positioning said support with the tangent line passing through the contact portion of said rollers in alignment with the eye of said needle accommodated in said notch, and
- thread guide means provided on said support at the opposite side of said notch relative to the contact portion of said rollers, and guiding the insertion of the thread toward the proximity of the contact portion of said rollers,
- said resilient rollers being rotated to grip and transfer the thread toward the eye of said needle.
Dependencies are inferred from the claim text.