Sewing device and sewing method
AssigneeHonda Motor Co., Ltd.
InventorsToru Takamura, Yosuke Ikadai, Mitsutaka Igaue
Life of this patent
Estimating the term…
Abstract
Provided are: a sewing device provided with a sewing mechanism which performs sewing on a work to be sewn using a sewing-machine needle, while holding the work to be sewn in a state of being shaped in a predetermined shape on a plurality of seating portions arranged in a sewing direction; and a sewing method. When the seating portions are withdrawn from the work to be sewn so as to avoid interference between the sewing mechanism and the seating portions, a guiding mechanism enables movement in a first withdrawing direction for avoiding a first undercut portion of the work to be sewn, and movement in a second withdrawing direction for avoiding a second undercut portion of the work to be sewn.
Claims7
A sewing device comprising:
- a plurality of seating portions disposed in a sewing direction, each of the seating portions being configured to, by a workpiece-to-be-sewn being seated on a seating surface thereof of a predetermined shape, hold the workpiece-to-be-sewn in a state of the workpiece-to-be-sewn having been shaped in a predetermined shape;
- a sewing mechanism configured to perform sewing on the workpiece-to-be-sewn by a sewing machine needle;
- a drive mechanism configured to move the sewing mechanism along a predetermined sewing line;
- and
- a retraction mechanism configured to, depending on a position of the sewing mechanism, retract at least some of the seating portions from the workpiece-to-be-sewn in a manner that interference of the sewing mechanism and the seating portions is avoided,
- the retraction mechanism including a guiding mechanism configured to, when the seating portions are retracted from the workpiece-to-be-sewn, perform movement in a first retracting direction for avoiding a first undercut portion of the workpiece-to-be-sewn and movement in a second retracting direction for avoiding a second undercut portion of the workpiece-to-be-sewn.
A sewing method in which a sewing mechanism is employed to perform sewing along a predetermined sewing line on a workpiece-to-be-sewn in a state of the workpiece-to-be-sewn having been shaped in a predetermined shape, the sewing mechanism comprising:
- a sewing machine needle configured to, by moving in a reciprocating manner, penetrate through or withdraw from the workpiece-to-be-sown;
- a post bed that faces the sewing machine needle with the workpiece-to-be-sewn disposed therebetween;
- and a pressing mechanism configured to press the workpiece-to-be-sewn against the post bed from a side of the sewing machine needle,
- the sewing method comprising:
- a step of shaping the workpiece-to-be-sewn in the predetermined shape by the workpiece-to-be-sewn being seated on a plurality of seating portions disposed along the sewing line of the workpiece-to-be-sewn;
- a step of forming a retraction region where both surfaces of the workpiece-to-be-sewn have been set adrift, by retracting some of the seating portions;
- and
- a step of performing sewing with the both surfaces of the workpiece-to-be-sewn being pinched by the sewing mechanism, in the retraction region of the workpiece-to-be-sewn, wherein
- in the step of forming the retraction region, interference of the seating portions and the workpiece-to-be-sewn is avoided by sequentially moving the seating portions in a first retracting direction of separating from a first undercut portion of the workpiece-to-be-sewn and in a second retracting direction of separating from a second undercut portion of the workpiece-to-be-sewn.
Dependencies are inferred from the claim text.