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US 7,296,525 B2Granted
Presser foot and sewing machine using the same
AssigneeYupoong, Inc.
InventorByoung-Woo Cho
Life of this patent
Estimating the term…
Abstract
A sewn product is protected from being stained by melted leavings of a work material by cooling a needle moving at a high speed, and thus the quality of the product may be enhanced when the work material is sewed by a presser foot of the present invention, and a sewing machine using the same, wherein the presser foot is provided with a fluid line for injecting a fluid toward the needle.
Claims16
A presser foot, comprising:
- a body having a needle hole providing a passage for a needle;
- a fixing member formed at the body and configured to combine with a sewing machine;
- a fluid line formed at the body for injecting a fluid toward the needle;
- and
- a thread receiving groove is formed at the needle in a length direction thereof and the thread receiving groove of the needle faces an upstream side of the fluid line.
2 more elements
A presser foot, comprising:
- a body configured to combine with a sewing machine and having a needle hole providing a passage for a needle;
- a fluid line formed at the body for injecting a fluid toward the needle;
- and
- a thread receiving groove is formed at the needle in a length direction thereof and the thread receiving groove of the needle faces an upstream side of the fluid line.
1 more element
A sewing machine, comprising:
- a fluid supply device;
- an on/off valve connected with the fluid supply device through a line member;
- a switch operating the on/off valve;
- a presser foot connected with the on/off valve to receive a fluid therefrom and having a fluid line formed therein for injecting a fluid toward a needle;
- and
- a thread receiving groove is formed at the needle in a length direction thereof and the thread receiving groove of the needle faces an upstream side of the fluid line.
3 more elements
A sewing method comprising:
- sewing a work material using a presser foot,
- wherein the presser foot comprises:
- a body having a needle hole providing a passage for a needle;
- a fixing member formed at the body and configured to combine with a sewing machine;
- a fluid line formed at the body for injecting a fluid toward the needle;
- and
- a thread receiving groove is formed at the needle in a length direction thereof and the thread receiving groove of the needle faces an upstream side of the fluid line.
4 more elements
Dependencies are inferred from the claim text.