DE2461510A1 - UPPER END STOP FOR ZIPPERS - Google Patents

Description

H. LEINWEBER tipl-tng. H, CARPENTER DIPL.ING. A. Gf. ν. WENGERSKY

8 Munich 2, Rosental 7, 2nd ed.

Part addr. Leinpat Munich phone (089) 2603989

Postal check account: Munich 220 45-804

_d Dec. 27, 187 *

the

Our sign

Va / Z / Sm Ψϊδ-ϊ

xOSHIM KOGYO K.K. Tokyo / Japan Upper end stop for ITe Iß pre-locks

The invention relates to an upper end stop for zip fasteners for stopping the movement of a slide in Zipper closure direction on a pair of zipper straps. The top stop according to the invention is in particular intended for use in a slide fastener having an uninterrupted row of coupling elements consisting of a long plastic wire and the lengthways each sewn or otherwise attached to one side of the straps.

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In known upper end stops for zip fasteners, the last coupling element on the fastener tape is fused and deformed to such a shape that it stops the movement of the slide. It is also known ^ι, plate-like pieces made of thermoplastic material in substantially

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Melt a V-shaped arrangement on the individual fastener tapes. However, these known upper end stops usually do not have sufficient strength to cope with the situation when the zipper is used to withstand repeated impacts of the slide. Such upper end stops therefore break relatively easily or otherwise ineffective or not as permanent as would be required.

Therefore, the invention is intended to provide improved upper end stops which are so designed and arranged are that they are acting on them the stop of the slide during the extended period of use of the hot seal withstand well.

Furthermore, upper end stops are to be created by the invention, which are designed and arranged so that the slide can be easily guided into its predetermined uppermost position on the two straps.

The top stops "according to the invention are intended for use in a bite valve, comprising a continuous coupling element row made of a plastic wire, each of which is disposed on one side of each fastener tape on the side opposite to the other longitudinal tape edge. The ^continuous! Row of coupling elements is formed so that they a longitudinal row of coupling heads, which can intervene between the same coupling heads' of the complementary coupling element row, and has sections I a the coupling heads facing away from longitudinal row of connection ■.

The upper end stops, which are made of plastic material, are at the top of the continuous dome I

row of links melted onto the corresponding carrier tapes. Each top end stop consists of an integral part with it formed stop section, on which the slide rests at the end of its zipper closing movement, and a guide section, which when the slide is the end of its closing movement approaches, engages the slider body to bring the slider into abutment contact with the stop sections.

The stop section and the filling section cut each upper one End stop are integrally connected to several of the connecting sections of the row of coupling elements. Preferably is the stop section - each top end stop greater than that Guide section both in height and in performance of the tape measured dimension formed.

Those formed and arranged as described above upper end stops can be relatively small, but can still withstand damage or displacement, which can occur due to the repeated stop of the slide.

Further details, advantages and features of the invention emerge from the following description. On the drawing the invention is illustrated by way of example, namely show

Fig. 1 is a plan view of part of a

Zip fastener with a preferred embodiment of the invention upper end stops with the slide in its uppermost position on one Pair of zipper straps, where

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to better illustrate the relationship between the top end stops, the zip fastener straps and the slider whose upper wing is cut away, · i

FIG. 2 is a perspective view of one of the fastener tapes shown in FIG. 1 and FIG

FIG. 3 shows a section on line III-III in FIG.

Fig. 1 best shows the general structure of a hot. Closure, for which the improved upper end stops are ^! measure of the invention are particularly well suited. The zipper shown consists of two heat-sealing halves 10 and a slider 11. Each zipper half 10 has a fastener tape 12 with a continuous row of coupling elements 13 which is arranged on the longitudinal edge opposite the corresponding edge of the other fastener tape.

Each row of coupling elements 13 has essentially the shape of a helix made of plastic wire and is only on one side of the corresponding fastener tape 12 with the aid of a lengthwise through the row of coupling elements; stretching filling core 15 attached with a row of stitches 14. The continuous coupling element row 13 has along its a longitudinal edge of a row of coupling heads 16 which are equally spaced from one another and which engage with the same coupling heads of the complementary row of coupling elements can, as well as a number of connecting sections 17 along the other longitudinal edge.

The along the two continuous rows of coupling elements 13 in both directions to open and close the

Wedge lock movable slide 11 has a body which consists of an upper wing 18 and a lower wing 19, which are connected to one another by a web 20, as can also be seen from FIG. 3. The wings 18 and 1-9 and the web 20 delimit the usual Y-shaped guide channel which the coupling element rows 13 can run. The upper wing 18 is provided with two side flanges 21 which serve as guides for the coupling elements. From Fig. 1 it can be seen that the side flanges 21 to the widening front end 23 of the Sections 22 diverging towards the slider body and parallel sections 24 at the narrow rear end 25 of the slider body *

The general structure of the zipper shown is known to the extent described and does not constitute a feature in itself the invention.

According to the invention, two cooperating upper end stops 26 of the same structure are at or near the opposite ones Edges of the respective zipper halves 10 are attached to the upper ends of the continuous rows 13 of coupling elements. To produce the upper end stops 26, a piece or plate made of a polyamide or another can be used in each case Plastic material can be arranged at the point mentioned on the zipper half 10 so that there are several connecting sections 17 of the coupling element row 13, including the top one, partially covered. The plate or the like. will then with the application of pressure, for example by the known high frequency or ultrasonic welding techniques, in such a way melted so that the resulting upper end stop 26 envelops a plurality of connecting portions 17 of the row of coupling elements and itself integrally connects with them.

Each so shaped and fused with the fastener tape 12 upper end stop 26 becomes simultaneous with a guide section 27, a stop section 28 and a flat base section 29 trained. The guide section 27 has in plan view, as shown in Fig. 1, essentially the shape of a right-angled triangle with an inclined leading edge or surface 30 which corresponds to the edge of the fastener tape carrying the coupling elements 12 is turned away and is beveled substantially in a direction away from the upper »end of the hot seal is. The stop section 28 is essentially rectangular, is higher and in its dimensions transverse to the The carrier tape is wider than the guide section (see Fig. 2) and is directly at the top of the ice fastener the facing side of the guide section 27 is arranged. As mentioned above, the guide section 27 and the stop section envelop 28 of each upper end stop 26 has several connecting sections 17 of the respective continuous row of coupling elements ^, including the topmost, and are integral with them tied together.

As can be seen from FIGS. 1 and 2, at least the top coupling head of each continuous coupling element row 13, which is aligned in the transverse direction with the stop section 28 of the upper end stop 26, away from the row of coupling elements. It is it is not necessary to remove the coupling heads that are aligned with the guide sections 27 of the upper end stops in the transverse direction, i

When, during operation, the slide 11 slides ^{along the coupling element rows 13 during its movement to:} close the zipper in its uppermost position on the two zipper halves 10, the guide sections 27 of the upper j

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End stops 26 first through the widening upper end 23 of the slide body in this one. When the divergent • An.den sections 22 of the side flanges 21 of the valve body corresponding inclined guide edges 30 of the guide sections

27 slide along, the slide 1Ί up to its predetermined uppermost position are performed, as in Fig. 1 and illustrated, in which the upper edges of the side flanges 21 abut the corresponding stop sections 28 of the upper end stops.

Since the stop sections 28 of the upper end stops 26 due to Their particular height and Q, external dimensions by far The most protruding parts on the straps 12 can be easily and accurately positioned on the straps Way to be visibly established, so that a transversely extending and from the guide section 27 and from the stop section

28 of each upper end stop 26 formed boundary line 28a as a reference point for the exact arrangement of the upper end stop 26 in relation to a preceding or first coupling element 13a on each fastener tape when assembling the slide fastener serves.

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Claims (2)

- 8 claims : Upper end stop for zippers with each. two straps, on one side of which there is a continuous, is arranged along the adjacent longitudinal edge of the coupling elements row from a plastic twist t and a row of coupling heads running along one longitudinal edge of the row of coupling elements and one along the other longitudinal edge of the row of coupling elements extending row of connecting portions, wherein the coupling heads of the one coupling element row are suitable for engagement with the corresponding coupling heads of the other row of coupling elements, and with one along the Coupling elements are a series of movable slides that have a body with a widening front end and a narrow rear end has, which consists of an upper wing and a lower wing, which ends by a front arranged web are connected to each other, wherein the upper wing of the slide body is provided with two side flanges is, characterized in that the upper end stop (26) consists of a plastic material and at the upper end of the Coupling link row (13) is melted onto the fastener tapes (12) so that each upper end stop (26) is made in one piece Stop section (28) at which when the slide (11) moves along the continuous rows of coupling elements (13) in its predetermined top position on the zipper the front edge of one of the side flanges (21) of the upper wing (18) of the slide body comes to rest, and a guide portion (27) consists of the seen from above essentially the Has the shape of a right triangle and substantially in the direction away from the top of the slide fastener is beveled so that the guide section (27) approach of the slide (11) to its predetermined uppermost Position engages in the slide body and for guiding the slide (11). in this position is suitable that the stop section (28) of the upper limit stop (26) is essentially rectangular and is higher and wider in the transverse direction of the fastener tape (12) as the guide section (27) and that the stop section (.28) and the guide section (27) each upper end stop (26) several of the connecting sections (17) of the respective row of coupling elements (13), including the uppermost, envelop and are integrally connected to them. 2. Upper end stop according to claim 1, characterized in that at least the topmost of the coupling heads (16) of each row of coupling elements (13), which is aligned transversely with the stop section (28) of each upper end stop (26) the row of coupling elements (13) is removed. 509828/0249 ORiGlNAL INSPECTED L e r s e i t e