摘要:
A startup control method of a resin extruder is provided. The resin extruder extrudes supplied resin material to a die as molten resin by rotating a screw. The resin material is supplied with a low supply amount which is smaller than a target supply amount and the screw is rotated at a low rotational frequency which is smaller than a target rotational frequency when starting the resin extruder. A supply amount of the resin material and a rotational frequency of the screw are gradually increased. After elapse of a set startup time, the supply amount of the resin material is brought into a target supply amount and the rotational frequency of the screw is brought into a target rotational frequency.
摘要:
A slider20 for a fluid tight slide fastener has upper and lower wings 21, 22 joined by a guide post 23 and a guide plate 24 provided between the upper and lower wings and spaced there from to cooperate with the upper and lower wings 21, 22 to guide coupling elements and sealing lips of the slide fastener. The upper wing is provided with upper side flanges 27 which extend from the trailing end 26a of the upper wing 21 to a position at least as far forward as the forward end 23b of the guide post23.
摘要:
A slide fastener is provided. Each of two adjacent stringers includes a fastener tape which has outer and inner longitudinal edge portions and an intermediate portion between the outer and inner longitudinal edge portions and carries respective coupling elements provided in the fastener tape. Each stringer is provided with a plurality of decorative beads. The decorative members are provided on an outside surface of the fastener tape and the coupling elements are provided on an inside surface of the fastener tape. The decorative members are affixed to the outside surface of the fastener tape in which the intermediate portion is formed.
摘要:
A water repellent zipper assembly is provided. A slider (16) includes a pull tab (17). A slider cap (30) includes: a body portion (43) having an outer surface (42), and an inner surface (44) opposite the outer surface (42); a first sidewall (38) protruding from one end portion of the body portion (43) in a width direction of the body portion (43); a second sidewall (38) opposite the first sidewall (38) and protruding from another end portion of the body portion (43) in the width direction of the body portion (43); and a snap tab (34,35) extending between at least a portion of an inner surface of the first and second sidewalls (38). The inner surface (44) of the body portion (43) and the snap tab (34,35) define a pocket (45) that receives the pull tab (17) of the slider (16). The body portion (43) of the slider cap (30) covers the slider (16) and a leading edge (40) of the slider cap (30) extends beyond a leading edge of the slider (16).
摘要:
There is provided a metallic male snap part (1) capable of enhancing coupling strength with a female snap part (3) by giving appropriate and sufficient elastic deformability to the projection (20) of the male snap part (1) which can be coupled to a depression (50) of the female snap part (3). The projection (20) includes a plurality of relatively highly deformable portions (26a) and a plurality of relatively low deformable portions (26b), the highly and low deformable portions being arranged alternately in the circumference direction of the projection (20). The highly deformable portions (26a) are more deformable elastically in the radial direction of the projection (20) than the low deformable portions (26b). Each of the highly deformable portions (26a) has a relatively large, outer bulge (24a) which bulges more outward in the radial direction than a relatively small, outer bulge (24b) of each of the low deformable portions (26b). The projection (20) further includes longitudinal slits (25) and lateral slits (27) to partition the projection (20) into the highly deformable portions (26a) and the low deformable portions (26b).
摘要:
A mold assembly system is provided. A mold defines at least one trench (12) along a surface thereof. At least a portion of the trench (12) is magnetic. Each of two or more hook fastener elements (31) includes an elongated base (32), a plurality of hooks (38) and a magnetic material. The elongated base (32) has an upper surface (33), a lower surface (34) opposite the upper surface (33), a first end (35), and a second end (36) opposite the first end (35). A longitudinal axis (37) of the elongated base (32) extends between the first end (35) and the second end (36). The hooks (38) extend upwardly from the upper surface (33). The magnetic material is disposed within the elongated base (32). The magnetic portion of the trench (12) is configured to attract the two or more hook fastener elements (31), align the elements (31) and hold the elements (31) adjacent to each other. The hook fastener elements (31) are unattached to each other and are disposed separately from each other in an end-to-end relationship on the magnetic trench (12).
摘要:
Fabric structures having two connection segments and an expansion segment between the two connection segments are provided. The fabric structure includes ground yarns (31; 32) that form a sheath, binder yarns (38), elongation yarns (34) surrounded by the sheath, and lateral yarns (36). In the expansion segment (14), at least some of the lateral yarns (36) are interwoven with the elongation yarns to connect the elongation yarns laterally with the sheath. Heat treatment of the expansion segment shrinks the length of the elongation yarns during manufacture. The sheath does not substantially shrink from the heat treatment relative to the elongation yarns and gathers together in an accordion-like arrangement. A tensile load applied to the fabric structure stretches the elongation yarns and unfolds the gathered sheath. The high strength sheath supports the tensile load when completely unfolded, while the elongation yarns absorbs energy as the fabric structure stretches or elongates.