摘要:
In a double-function sewing machine including a lock stitch mechanism and an overlock switch mechanism, a stitching portion of an overlock stitch mechanism thereof is positioned at the right side of the machine frame as seen from a machine operator and at a front side with respect to a lock stitching free arm of the lock stitch mechanism. A space is provided between the rear end of the needle plate for the overlock stitch mechanism and the front face of the free arm, through which a fabric to be stitched passes.
摘要:
An overedge sewing machine convertible from a flat bed to a cylinder bed version wherein the work supporting surface is supported by a vertical side wall and a vertical front wall with the cylinder bed protrusion projecting laterally from an extension to the vertical side wall. A needle bar reciprocates a needle into an opening in the extension of the vertical side wall and the work material is enabled to travel a path beneath the sewing needle by having a deep groove through the vertical side wall adjacent the cylinder bed protrusion behind the sewing needle, the extension being supported by a bridge connecting the vertical side wall, vertical front wall and extension. The deep groove behind the cylinder bed protrusion merges into a shallow groove beneath the cylinder bed protrusion where the material is able to undergo some deformation without effecting the stitching point. A work support plate pivoted on the vertical side wall is fashioned with a finger extending into the deep groove behind the cylinder bed extension so that in its upper position the work support plate forms a continuous work supporting surface with the cylinder bed protrusion and the work supporting surface of the bed. In its depressed position, the work support plate permits access to the groove encircling the cylinder bed protrusion by a cylinder of work material.
摘要:
A sewing machine for simultaneously performing hem stitch and blind stitch. The sewing machine comprises a first looper placed above one end of a hem of cloth to be stitched and along the hem reciprocated to cross with a blind needle which is passed through the cloth; and a second looper placed above the hem to be stitched and adapted to move along a loop-like track which resembles the outline of a saddle and syncronizes generally with the reciprocation of said first looper.
摘要:
A device for orienting a chain of stitches severed from a completed workpiece which includes a suction intake element for aligning the chain with the sewing axis, a clamping device for holding the chain in alignment with the sewing axis and a cutting means for severing that portion of the chain protruding from the clamping device so as to control the length of the chain to be incorporated into the initial stitches of a seam.
摘要:
The upper looper of a sewing machine is held and guided in its intermediate part by a looper guide movable therewith in the lengthwise direction. The guide rotates around a shaft upon which a rotary carriage is journalled, and is movable in a direction intersecting with the looper guiding direction, with respect to the carriage. The looper is carried on its other end by a reciprocally rotatable rocking arm. The other end of the rocking arm is connected to a driving rod which is driven by a driving shaft.
摘要:
A lockseamer mechanism for trimming the free edge of cloth is disclosed, whereby a composite of knitted or woven cloth for men and women can now be easily fabricated at a high speed without requiring the full time attendance of a shopworker. A lockseamer generally employs three independent threads which are supplied to conventional sewing machine needles. Cloth to be lockseamed along a lengthwise edge is first led to an initial guide gauge having a guiding edge and made of stainless steel sheet. Adjacent thereto a principal guide gauge is provided and has a guide edge adapted to handle any type of curve, including outside curve and inside curve, as well as straight edges. A pair of high pressure jet nozzles are provided to press the cloth sideways against the guide edges. Electric eyes, responsive to the incoming cloth, actuate a third nozzle to advance the cloth towards the sewing machine needle. When lockseaming of the cloth is completed, the thread is automatically cut off and the cloth is moved and then removed from the edge of the sewing table.
摘要:
A flat overedge seam joining together the edge portions of two superimposed fabric layers, such as are present at the toe of knitted hosiery, is formed with a looper-type sewing machine having three needles two of which form two separate series of loops spaced from the edge and a third of which forms a series of loops at a raw edge formed by trimming away an edge portion of the layers just prior to stitching.
摘要:
An improved chaining mechanism for an overedge sewing machine having a pair of needles supported in alignment in the direction of feed of work material through the machine for simultaneously penetrating the workpiece at spaced points along the length of a seam formed by the machine. A pair of chaining fingers are provided in alignment in the direction of feed through the machine, and in laterally spaced relation to the needles so that independent stitches formed with respective threads carried by each of the needles may be formed around a separate chaining finger.