Yoshida Kogyo K.k.

Hiroo Minami

Sadaho Asahi

Kazuo Ida

Yasuo Yamada

Slider for slide fasteners

A slide fastener slider includes a safe pull tab molded of elastic synthetic rubber into a one-piece structure. The elastic pull tab is easily bendable when subjected to a severe pressure or force and hence never injures the user's body even when the user accidentally strikes a part of its body against the pull tab.

Slide fastener slider

Fastener

Slider pull tab for slide fastener

A method of making an injection-molded slide fastener slider includes a first injection-molding step for forming a slider body having an integral arch-shaped support lug and a second injection-molding step for forming a pull tab threaded through a transverse hole in the support lug. For pivotal connection of the pull tab with the support lug, a mold used for achieving the method includes a combination of a main slide core and an auxiliary slide core slidably associated therewith. In the first injection-molding step, the auxiliary slide core is held in a first position in which the two slide cores jointly have a shape corresponding to the shape of the transverse hole while blocking fluid communication between first and second mold cavities in which the slider body and a body of the pull tab are formed respectively. Then the auxiliary slide core is moved to a second position in which a third mold cavity corresponding in shape to a pintle of the pull tab and communicating with the second mold cavity is defined between the slide cores and the underside of the already molded lug. Thereafter, the second injection-molding step is carried out.

Method of making injection-molded slide fastener sliders

Male and female surface-type fastener tapes are unwound from respective spools in a housing and drawn out of the housing through a tape guide swingably disposed in a slot defined in a side panel of the housing. The spools are disconnected from the housing and can easily be replaced with new ones simply by opening a cover of the housing. The tape guide is automatically directed toward the position where the tapes are unreeled off the respective spools. Therefore, the tapes are properly and smoothly mated together by the tape guide as they are progressively passed through the tape guide.

Case for surface-type fastener

A pull tab for a slide fastener slider comprises a body of a transparent, resilient material having a chamber, a display card releasably inserted in the chamber to be viewed from both sides, and an end cap means for closing the chamber. The pull tab body is generally rectangular in shape, and the display card is substantially coextensive therewith so that information on the card in the form of marks or words can be fully viewed.

Pull tab for slide fastener

A bottom stop with an ornamental design thereon has a pair of upper and lower rectangular plates spaced from each other and integrally joined by a connector post located adjacent to one end of each of the upper and lower plates. The upper plate has a pair of longitudinal side flanges having rows of sawteeth, and the lower plate has rows of sawteeth. The bottom stop can be attached to a slide fastener by inserting stringer tapes between the upper and lower plates with an end of rows of coupling elements held in abutment against the connector post, and then bending lateral portions of the lower plate adjacent to the connector post toward the upper plate until the stringer tapes of the slide fastener are gripped firmly by and between the sawteeth on the upper and lower plates.

Bottom stop for slide fasteners

An ornamental attachment for a slide fastener slider includes a body having a slot receptive of a slider pull tab having a lateral projection, the slot being defined between a plate and a pair of cantilevered resilient flaps confronting the plate and having distal edges directed toward each other. The plate or the flaps have a cam projecting into the slot. The body also has a hole adjacent to the flaps and communicates with the slot. When the pull tab is inserted into the slot, the pull tab is caused by the cam to displace or flex the flaps against the resiliency thereof until the lateral projection of the pull tab is snapped into the hole, whereupon the flaps spring back into a position in which the lateral projection is locked in the hole by the adjacent ends of the flaps.

Growing community of inventors

Uozu, Japan

Hiroo Minami