Sewing apparatus and sewing cartridge
AssigneeBrother Kogyo Kabushiki Kaisha
InventorToshiyuki Mamiya
Life of this patent
Estimating the term…
Abstract
A sewing apparatus includes a hollow needle that can pass through a work cloth, and a needle cover that has a passing hole through which the needle passes and holds the work cloth. The needle cover functions as a presser foot and holds at least a part of a thread between a previous stitch point where a stitch has been previously made and a succeeding stitch point where a stitch is to be currently made. Accordingly, sewing can be performed on the workpiece without use of a lower thread.
Claims21
A sewing apparatus where sewing is performed by causing a thread to remain in a workpiece, comprising:
- a hollow needle that moves up and down to pass the thread into the workpiece;
- a workpiece moving device that relatively moves the workpiece with respect to the hollow needle;
- and
- a holding member that presses at least a part of the thread connecting two consecutive stitch points to the workpiece in accordance with a relative movement between the hollow needle and the workpiece, wherein the holding member retains a part of the thread between one stitch point and a succeeding stitch point to prevent unraveling.
A sewing cartridge for use with a sewing apparatus in which a thread is caused to remain in a workpiece by a thread holding force of the workpiece while sewing is performed by moving the workpiece, the sewing cartridge comprising:
- a needle that can pass through the workpiece;
- a thread storage member that stores the thread to be supplied to the needle;
- a thread guiding member that guides the thread in a thread passing route from the thread storage member to the needle;
- a thread holding member that holds at least a part of the thread connecting two consecutive stitch points in accordance with a relative movement between the needle and the workpiece.
A sewing cartridge that forms a stitch point on a workpiece and is detachably attached to a sewing apparatus where sewing is performed by causing a thread to remain in the workpiece, comprising:
- a needle that moves vertically and passes through the workpiece;
- a needle cover that covers at least a tip of the needle;
- a thread storage member that stores the thread to be supplied to the needle;
- a thread guiding member that guides the thread from the thread storage member to the needle;
- and
- a presser foot that holds at least a part of the thread from a stitch point where a stitch has been made to a next stitch point where a stitch is being made.
A sewing apparatus where sewing is performed by causing a thread to remain in a workpiece, comprising:
- a hollow needle that moves up and down to pass the thread into the workpiece;
- a workpiece moving device that relatively moves the workpiece with respect to the hollow needle;
- and
- a holding member that presses at least a part of the thread connecting two consecutive stitch points in accordance with a relative movement between the hollow needle and the workpiece, wherein the holding member is vertically movable, and the holding member retains a part of the thread between one stitch point and a succeeding stitch point to prevent unraveling, and the part of the thread being held is less than the entire amount of thread between stitch points.
A sewing apparatus where sewing is performed by causing a thread to remain in a workpiece, comprising:
- a hollow needle that moves up and down to pass the thread into the workpiece;
- a workpiece moving device that relatively moves the workpiece with respect to the hollow needle;
- and
- a holding member that presses at least a part of the thread connecting two consecutive stitch points in accordance with a relative movement between the hollow needle and the workpiece, wherein the holding member is retractably positioned over the tip of the hollow needle, and the holding member retains a part of the thread between one stitch point and a succeeding stitch point to prevent unraveling, and the part of the thread being held is less than the entire amount of thread between stitch points.
Dependencies are inferred from the claim text.