Automatic method and apparatus for closing a toe end of a hose utilizing a straight line stitch
AssigneeTakatori Machinery Works, Ltd.
InventorsOsho Takatori, Etsuo Nishikawa, Yosinobu Fukuyama
Life of this patent
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Abstract
Disclosed is an invention relating to a method and an apparatus for closing the toe end of a hose material, wherein the toe portion of the hose material is united in such a way that the toe portion can be closed with a straight line stitching after the material is spread out laterally and caused to travel in a lateral direction. A photocell-type detecting device is also disposed near one end of the suction tubes of the holding units so as to detect the presence or absence of the end of a hose material within the tube. This detecting device serves to shut off the winding-on means which pulls the hose material onto the holding unit from within the suction tube.
Claims20
A method of automatically closing each toe of a plurality of hose materials successively by a straight line stitching wherein said materials are held on a plurality of pairs of parallel and horizontal holding member units together with suction tubes including support members and finger pieces continuously travelling in a lateral direction and wherein a sewing machine is disposed stationarily at one portion within said lateral travelling passage, so that the toe-closing operation is accomplished while said holding member units, said support members and said suction tubes are continuously travelling in a lateral direction, the method characterized by the steps of:
- arranging an end of said hose material turned inside-out at a position outside the outer end of said holding member and finger pieces, wherein said hose material covers said holding member and said finger pieces;
- laterally spreading said hose material by a pair of said finger pieces extending from within said support members which are inserted within said material, so as to deform said hose material into a concaved configuration at the edge of the toe end portion of said hose material;
- bringing said hose material together with said finger pieces to a stitching line of said sewing machine while said hose material is maintaining its laterally-spread condition;
- stitching the thus deformed toe part along a straight line perpendicular to the center line of said material so as to form said straight line stitching on said toe part to be closed, and at the same time cutting said toe part along a cutting line parallel to said stitching line, for forming a cut edge;
- restoring said deformed toe part to its original undeformed state, and;
- freeing the toe-closed hose material from the holding action of said pair of finger pieces caused by retracting said finger pieces into said support member.
An apparatus for closing a toe portion of a hose material, comprising:
- a sewing machine disposed stationarily;
- a plurality of holding member units and suction tubes which travel laterally to the front of said sewing machine, each of said holding member units and said suction tubes holding one hose material to be toe-closed;
- a pair of finger pieces mounted on each of said holding member units, spreading means for said finger pieces, whereby the free ends of said finger pieces can be spread out laterally, and;
- a laterally moving device for moving said holding member units together with said finger pieces and said suction tubes in a lateral direction with respect to said sewing machine when the front edges of said finger pieces together with said hose material enter into the stitching line of said sewing machine and pass through the stitching zone of said sewing machine.
In an apparatus for automatically closing the toe of a hose material the combination comprising
- a stationarily disposed sewing machine;
- a holding unit including a suction tube for receiving a toe portion of a hose material thereover and a pair of finger pieces mounted for spreading movement adjacent said suction tube;
- means for moving said finger pieces relative to said suction tube to flatten the toe portion while carrying the toe portion away from said suction tube into a position interposed in a stitching line of said sewing machine;
- and
- means for moving said holding unit parallel to said stitching line to move the toe portion past said sewing machine for closing of the toe portion.
An apparatus for closing the toe of a series of hose material comprising a stationarily disposed sewing machine;
- a plurality of holding units disposed in an endless path, each holding unit including an elongated tube and a pair of finger pieces mounted for spreading movement adjacent said tube for receiving a hose material thereon;
- means for moving said holding units in said endless path parallel to a stitching line of said sewing machine;
- and
- means for sequentially moving said finger pieces of each said holding means relative to said tube to flatten a toe portion of a hose material thereon while carrying the toe portion away from said tube to a position interposed in said stitching line of said sewing machine and then parallel to said stitching line then through said sewing machine during movement of said holding units in said endless path.
In an apparatus for automatically closing the toe of a hose material, the combination comprising
- a holding unit including a hollow suction tube for receiving a toe portion of a hose thereover;
- a winding-on means for winding-on a hose material on said tube from within said tube;
- and
- a photocell-type detecting device disposed outside said tube for controlling said winding-on means, said detecting device being disposed to direct a light beam into the interior of said tube to detect the presence of the hose material therein whereby upon movement of the end of said hose material in said tube past said light beam, said detecting device emits a signal indicating the occurrence of such a condition to stop said winding-on means.
Dependencies are inferred from the claim text.