摘要:
A slide fastener adapted for unopenably closing an opening in an upholstery covering of a seat. For semipermanently locking a slider in a closed position on interlockable rows of fastener elements, a stop is fixedly mounted on the interlocked fastener elements in close contact with the rear end of the slider in the closed position. Typically, the stop is formed by a staple similar to the conventional bottom stop of a blind fastener.
摘要:
A replaceable front cover is attached to an upholstered seat, as of a passenger car, by means of a slide fastener. The fastener comprises a pair of completely separable stringers, one of which is secured to the front cover and the other to the seat.
摘要:
A slider for use with a pair of concealed fastener stringers in which rows of scoops are stitched to respective folds formed rearwardly along the opposed longitudinal edges of stringer tapes, in such a manner that each tape fold has a loose outermost edge on the outside of the line of stitching. A pair of side walls on the marginal edges of the rear wall of the slider body extend from its lower end and terminate short of its upper end, and a pair of outer lips turned inwardly from the side walls extend close to the lipped inboard end of a separator on the upper end of the rear wall. The slider of this configuration is capable of preventing the jamming of the loose outermost edges of the tape folds as they enter the guide channel in the slider body during the fastener closing movement of the slider.
摘要:
For the manufacture of a continuous coupling element of zigzag or meandering type, a blank strip of sheetlike material is first cut by rotary cutters into a continuous rodlike member of zigzag configuration. This zigzagging rodlike member is reshaped, as by a cooperative pair of forming dies, into meandering configuration in which the major transverse portions of the rodlike member are arranged parallel to each other with constant longitudinal spacings. Pressure is then applied centrally to each transverse portion of the meandering rodlike member to form a pair of lateral protuberances for use as a coupling head in the completed coupling element, and these transverse portions are bent by a combination guide channel-toothed wheel into the shape of a "U".
摘要:
A method and apparatus for producing element-free gaps or spaces in a continuous fastener chain. Means are provided for supporting a series of discrete fastener elements formed by die-casting a metal or injection-molding a plastics material and secured to a tape cord with their coupling heads faced upwardly, severing the fastener elements into halves at the coupling heads towards the cord and removing the severed elements completely from the cord without damage thereto. The severing operation is effected by a vertically movable cutter blade adapted to thrust centrally into the coupling heads toward the cord and is immediately followed by the removing operation wherein a pair of removers are moved downwardly to take the severed elements away from the cord when the supporting means are forced out of holding engagement with the fastener elements.
摘要:
A slide fastener capable of being forced open in an emergency without manipulating a slider along interlocking rows of scoops. The slide fastener comprises an emergency opening zone at its intermediate point where the rows of scoops are incapable of interlocking engagement when the fastener is closed, and a pair of rigid reinforcements fixedly arranged along and on the opposite sides of the zone. Each reinforcement extends beyond both extremities of the zone, so that the fastener will not open accidentally from the zone but will open unfailingly upon application of a finger pressure to the zone in an emergency.
摘要:
The bottom wing of the slider body has a pair of lateral extensions which are angled toward the top wing. When the slide fastener including this slider is attached to an article such that the opening therein is bounded by one or two pairs of edges disposed in opposed or abutting relationship, the lateral extensions from the bottom wing serve as guide members to raise the rear edge portions of the respective stringer tapes out of the plane of their element-carrying front edges. Since the article edges are thus held over, and under, the slider body, they are prevented from becoming caught between the top and bottom wings of the slider body during slider movement along the fastener elements.
摘要:
A method of producing a ladder-like structure for use as a row of interlocking elements for a slide fastener is disclosed. A pair or pairs of elongated connecting members are advanced in parallel alignment along their length at predetermined intervals. For the pair or pairs of connecting members, a plurality of element-forming spaced strips of a thermoplastic material are fed simultaneously for attachment transversely to the connecting members. The result is to produce a ladder-like structure at increased rate of speed which is suitable for use as a row of fastener elements.
摘要:
A slide fastener element construction having a ladder-like structure of the type which is longitudinally folded on itself to form a finished row of coupling elements. The ladder-like structure basically includes longitudinally parallel spaced-apart base portions, a plurality of pairs of element-forming members projecting in opposed relation inwardly from the base portions, enlarged coupling head portions integral with the element-forming members and located innermost of the structure and bridge portions extending transversely of the structure for connecting the pairs of element-forming members.
摘要:
An elongated stringer tape is fed along a path extending substantially tangentially of a die wheel carrying in its circumferential groove a formed continuous coupling element of a zigzag or helical coil configuration composed of thermally fusible material. The coupling element is held at an elevated temperature by the die wheel. One of the longitudinal edges of the stringer tape becomes received between the shanks of the coupling element as the latter is gradually released from within the die wheel groove, and while the coupling element is partly caught in the groove and is therefore still hot, its shanks are fused to the stringer tape under application of heat and pressure.