Curved workpiece fabric holder device rotary position adjusting mechanism for rotary frame for use in embroidery machine
First Claim
1. A curved workpiece fabric holder device for use in an embroidery machine having at least one cylinder bed extending in a frontward/rearward direction, and a fabric feed frame movable in the frontward-rearward direction and a lateral direction perpendicular thereto, the holder device comprising:
- a base frame positioned adjacent the at least one cylinder bed and movable in the frontward/rearward direction;
a rotary frame rotatably supported by the base frame and positioned to surround the at least one cylinder bed, the rotary frame providing a rotational point of origin;
a workpiece retainer for retaining a curved workpiece and detachably mounted on the rotary frame;
a translation mechanism connected between the fabric feed frame and the rotary frame for translating the movement of the fabric feed frame in the lateral direction into a rotational movement of the rotary frame; and
an adjusting mechanism provided to the translation mechanism and selectively releasing the rotary frame from the fabric feed frame for adjusting an initial rotational position of the rotary frame relative to the base frame to adjust the rotational point of origin regardless of the movement of the fabric feed frame.
1 Assignment
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Accused Products
Abstract
A curved workpiece fabric holder device which holds a cup-shaped or cylindrical workpiece at a position around a cylinder bed. The cylinder bed contains therein a loop taker which co-operates with a sewing needle. The holder device includes a base frame movable in an extending direction of the cylinder bed, a rotary frame rotatably supported by the base frame and positioned around the cylinder bed, a retainer retaining therein the workpiece and detachably installed over the rotary frame. Normally, the rotary frame is rotated in accordance with a movement of a fabric feed frame. A fixed segment is fixed to the fabric feed frame, and a movable segment is movably and position-fixably supported to the fixed segment. A wire is looped around the rotary frame and each end of the wire is fixed to each end of the movable segment. By unfastening the movable segment from the fixed segment, the movable segment is disconnected from the fabric feed frame. With this state, by moving the movable segment relative to the fixed segment, a rotational point of origin of the rotary frame is adjusted.
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Citations
23 Claims
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1. A curved workpiece fabric holder device for use in an embroidery machine having at least one cylinder bed extending in a frontward/rearward direction, and a fabric feed frame movable in the frontward-rearward direction and a lateral direction perpendicular thereto, the holder device comprising:
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a base frame positioned adjacent the at least one cylinder bed and movable in the frontward/rearward direction; a rotary frame rotatably supported by the base frame and positioned to surround the at least one cylinder bed, the rotary frame providing a rotational point of origin; a workpiece retainer for retaining a curved workpiece and detachably mounted on the rotary frame; a translation mechanism connected between the fabric feed frame and the rotary frame for translating the movement of the fabric feed frame in the lateral direction into a rotational movement of the rotary frame; and an adjusting mechanism provided to the translation mechanism and selectively releasing the rotary frame from the fabric feed frame for adjusting an initial rotational position of the rotary frame relative to the base frame to adjust the rotational point of origin regardless of the movement of the fabric feed frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An embroidery machine for performing embroidery stitching to a curved workpiece fabric comprising:
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at least one sewing portion having a head portion where a plurality of needle bars each holding a sewing needle are provided, and a cylinder bed extending in a frontward/rearward direction and housing therein a loop taker, an embroidery stitching being formed by co-operation of the sewing needle and the loop taker; a fabric feed frame movable in the frontward-rearward direction and a lateral direction perpendicular thereto; and at least one holder device comprising; a base frame positioned adjacent each cylinder bed and movable in the frontward/rearward direction; a rotary frame rotatably supported by the base frame and positioned to surround the cylinder bed, the rotary frame providing a rotational point of origin; a workpiece retainer for retaining a curved workpiece and detachably mounted on the rotary frame; a translation mechanism connected between the fabric feed frame and the rotary frame for translating the movement of the fabric feed frame in the lateral direction into a rotational movement of the rotary frame; and an adjusting mechanism provided to the translation mechanism and selectively releasing the rotary frame from the fabric feed frame for adjusting an initial rotational position of the rotary frame relative to the base frame to adjust the rotational point of origin regardless of the movement of the fabric feed frame. - View Dependent Claims (21, 22)
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23. A multiple head type embroidery machine for performing embroidery stitching simultaneously to a plurality of curved workpiece fabrics comprising:
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a plurality of embroidery heads arrayed side by side in a lateral direction, each embroidery head having a plurality of needle bars each holding a sewing needle, and a cylinder bed extending in a frontward/rearward direction and housing therein a loop taker, an embroidery stitching being formed by co-operation of the sewing needle and the loop taker; a fabric feed frame movable in the frontward-rearward direction and a lateral direction perpendicular thereto; and a plurality of holder devices each comprising; a base frame positioned adjacent each cylinder bed and movable in the frontward/rearward direction; a rotary frame rotatably supported by the base frame and positioned to surround the cylinder bed, the rotary frame providing a rotational point of origin; a workpiece retainer for retaining a curved workpiece and detachably mounted on the rotary frame; a translation mechanism connected between the fabric feed frame and the rotary frame for translating the movement of the fabric feed frame in the lateral direction into a rotational movement of the rotary frame; and an adjusting mechanism provided to the translation mechanism and selectively releasing the rotary frame from the fabric feed frame for adjusting an initial rotational position of the rotary frame relative to the base frame to adjust the rotational point of origin regardless of the movement of the fabric feed frame.
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Specification