Yoshida Kogyo K.k.

Ykk Corporation

Ykk Corporaion

Kiyoshi Oda

Susumu Ishii

Keiichi Keyaki

Morimasa Yoneoka

Koji Yamagishi

Hideyuki Matsushima

Shunji Akashi

Ryuichi Murasaki

Yoshikazu Hamada

Kenji Yuuki

Hiroaki Izumi

Masao Wakabayashi

A method for manufacturing a slider for a slide fastener with an automatic stopper. A common part which includes a stopping pawl portion, a biasing portion and a cover portion and forms the automatic stopper is provided. At least two bodies selected from among a first body having a guide recess configured to guide metal teeth, a second body having a guide recess configured to guide resin teeth which are formed by injection molding, and a third body having a guide recess configured to guide teeth made of resin monofilaments are prepared. The common part is mounted on one of the bodies selected from the at least two bodies.

Slider for slide fastener with automatic stop device and method for manufacturing same

Fastener elements are attached to a side edge of a fastener tape composed of a knitting structure. An interval between the elements and a wale in the vicinity of the elements is formed into a thin knitted fabric. A flange on a side of a rear mouth of a slider is disposed on the thin knitted fabric and the slider is slid based on this section. For this purpose, an outer side of a bottom end face of the flange is cut out to provide with a notch portion, so that this portion is formed with a small width. Consequently, the thin knitted fabric is slid and introduced securely, and making a pressure contact with a surface of the wale is prevented. Even if a fastener is mounted on trousers and its fabric is pulled in a lateral direction forcibly to open, the elements are prevented from biting into a tape guide groove and escaping.

Slide fastener

A pull attachment portion is provided on a slider body integrally and a pull connecting ring has attachment plates integrally. A slit is formed in a center of the pull connecting ring and the attachment plates and provided with engaging portions on both sides of the slit, and free end portions of the engaging portions are protruded from the attachment plates. A through hole is provided in a face of an accommodating portion provided in an end of a pull main body for accommodating the attachment plate so as to form a holding portion. After deforming the attachment plates elastically in vertical directions through the slit and passing one of them through the pull attachment portion, the attachment plates are accommodated in the accommodating portion and fixed therein. Replacement of the pull is carried out by pressing the engaging portions through the through hole and removing them.

Pull of slider for slide fastener

Tab for a slider of a slide fastener

This invention provides a bottom end stop for a slide fastener in which an engaging/disengaging operation can be achieved easily and quickly without an interruption by a slider pull tab while engaging/disengaging the bottom end stop. A joining piece is attached to the bottom of one stringer and a fitting piece is attached to the bottom of the other stringer. The joining piece includes a holding portion that includes an insertion concave groove, a base portion formed on the holding portion, and a male engaging portion comprising a pair of elastically deformable leg portions provided on the base portion. The fitting piece includes a insertion portion which can be fit into the insertion concave groove of the joining piece, a base portion provided on the insertion portion, and a female engaging portion comprising a hole portion, in which the leg portions of the male engaging portion can be fit, provided on the base portion of the fitting piece. In operation, the slider is inserted into the holding portion to engage the female and male engaging portions. Then, the insertion portion is rotated and fit into the insertion concave groove so that the slider can slide. Since the female and male engaging portions are engaged on an opposite surface to a side in which a single pull tab of the slider exists, even when the pull tab of the slider hangs downward, the engaging operation between the female and male engaging portions is never obstructed.

Bottom end stop for slide fastener

This invention provides a slider for use in sport goods, and its surface is smooth without any protrusion thereby providing no danger to a user. On a top surface of an upper wing of a slider body for slide fastener, a thread attachment portion for attaching a thread body as a pull and a fixing portion for fixing molded resin body formed by insert-molding synthetic resin on the upper wing are formed integrally with the slider body. The thread attachment portion is formed by arranging tongue pieces each having a narrowed tip in the center of the upper wing such that they oppose each other. The thread body is placed between the tongue pieces and the tongue pieces are crimped so as to fix the thread body. Further, tongue pieces slightly smaller than the aforementioned tongue pieces having the same shape are formed back and forth of the thread attachment portion and the tips thereof are crimped inward so as to form the fixing portion. Then, synthetic resin is insert-molded to bury and cover the thread attachment portion to which the thread body is already attached and the fixing portion so that a molded resin body is formed on the upper wing and fixed thereon. As a result, there is provided a slider whose body has a smooth surface and only contains a flexible thread body.

Slider for slide fastener

The present invention provides a slider with a simple locking mechanism which allows the slider to be operated easily and exerts its locking function accurately. In the slider of this invention, a recess is made in the center of an upper wing plate of a slider body thereof and engaging posts are provided on the front and back of the slider body. Two pawl holes are provided in a bottom portion of the recess and supporting pieces are provided on the right and left sides so as to be erected. Guide grooves are provided in side walls of the recess. A pawl body comprises locking pawls provided on the right and left of a bottom face thereof in which a top face thereof is formed in a mountain shape and their phases are deviated by half pitch and guide protruding portions protruding from the side walls. A pull tab has a pintle on an end thereof and a cam is provided in the center of the pintle. A cover is a rectangular prism and has front and rear engaging holes which are capable of engaging the engaging posts. The guide protruding portions of the pawl body are inserted into the guide grooves of the recess and the pull tab is placed on the supporting pieces from above. Then, the cover is mounted. When the pull tab is raised or hung, the pawl body moves up and down, so that the locking pawls enter in between fastener elements by pressure.

Slider for slide fastener with locking mechanism

The present invention provides a separable bottom stop assembly which can be easily operated by children or people who are handicapped with one of their hands. A coupling member and a locking member respectively provided at lower ends of left and right fastener stringers are rotatably coupled together by fitting resilient leg portions of a coupling base portion of the coupling member into a hole portion of a coupling base portion of the locking member. Then, by pulling down a slider, a lower end portion of the slider urges a pivotal abutting portion of the coupling member to pivotally move a lateral-inserting fitting portion of the coupling member to a position where the slider can be pulled up. A locking projecting portion of the coupling member climbs over a projecting portion of the locking member to be locked so as to prevent separation of the coupling member in a horizontal direction. Therefore, it is possible to easily pull up the slider by a single hand to couple and close a slide fastener.

Separable bottom stop assembly of slide fastener

A slide fastener slider comprising: a slider body composed of upper and lower wings joined at their front ends by a guide post; a cantilevered attachment lug standing on an upper surface of the upper wing at its rear end and extending toward its front end; a pull tab having at one end an attaching ring adapted to be threaded on the attachment lug; a stop resiliently supported on the slider so as to normally come into contact with a front end of the attachment lug; and the guide post having in its upper surface a recess and defining between the recess and the front end of the attachment lug a gap that allows the attaching ring of the pull tab to pass through as pressing the stop away from the front end of the attachment lug.

An auto-lock slide fastener slider comprises a slider body, a locking plate and a pull tab. An upper wing of the slider body has a locking-pawl-insertion hole, a recess forwardly extending from the locking-pawl-insertion hole, a locking-plate-attachment projection disposed at the front side of the recess, and a pair of pull-tab-attachment lugs disposed at opposite sides of the recess. The locking plate having at one end an axle rotatably supported by the locking-plate-attachment projection and at the other end a locking pawl inserted in the locking-pawl-insertion hole. The pull tab has at one end a pintle axle rotatably supported by the pull-tab-attachment lugs and a cam on the pintle for pressing the locking plate in such a manner that the locking pawl can project from the locking-pawl-insertion hole to engage a pair of rows of fastener elements. This slider will not give any damage to a garment, thus securing adequate safety.

Auto-lock slide fastener slider

In an auto-lock slide fastener slider, an upper wing of a slider body has front and rear lugs on its upper surface, a through-hole under the front lug, a pair of locking-spring-supporting seats at opposite sides of the through-hole, a locking-pawl-insertion hole under the rear lug, and a cam-receiving recess between the lugs. A pull tab has a cam on an eccentric axle. A locking leaf spring has a streamlined central base, a front end portion at a front end of the base, a locking pawl at a rear end of the base, front and rear openings near the opposite ends of the base, and an oblique engaging strip projecting fra the front end of the base and engageable with the front lug. The spring is placed over the pull tab's cam, which is received in the cam-receiving recess of the upper wing, with the openings being threaded by the lugs and with the front end portion fixed to a guide post of the slider body.

Slider body of slide fastener

An attachment fitting in which several sets of ball chains can be arranged and the attachment is possible over the entire length of the attachment fitting main body. Also, the strength of the main body is improved. A tubular main body has an opening on one end and can be closed on the other end. A slit is provided in the vicinity of the other end through the opening. A connecting member is provided and extends in the longitudinal direction of the main body which is symmetrical to the slit of the main body. Several protruding pieces are formed and jut out from the circumference of the closure so that the aforementioned opening can be shut. The end of ball of several sets of ball chains is fitted into the main body. A connecting rod of ball chain goes through slit. The attachment is closed through the opening by shutting the closure.

Fitting for ball chains

A slide fastener comprises a pair of stringer tapes, a pair of rows of interdigitating fastener elements mounted on the inner longitudinal marginal edges of the respective stringer tapes, and a slider for reciprocally movable along the fastener element rows to bring the fastener element rows into or out of interdigitating engagement with each other and a bottom stop mounted on the lower end of the element rows to stop the descent of the slider. The slide fastener also includes a terminal latch member mounted on the fastener element rows at their upper end for letting the slider move therebeyond and coupling the respective one ends of the fastener element rows to each other to thus maintaining the fastener element rows into interdigitating engagement with each other.

Growing community of inventors

Toyama-ken, Japan

Kiyoshi Oda