US2093276A - Slide fastener - Google Patents

Description

Sept. 14, 1937.v

N. KASE ET AL SLIDE FASTENER Filed Jan. 14, 1936 ATTORNEYI Patented Sept. 14, 1937 SLIDE FASTENER Nathan Kse, New Yrk, and Louis Wagenfeld,

Brooklyn, N. Y., assignors to Glda Corporation of America, New York, N. Y., a corporation of New York Application January 14, 1936, Serial No. 59,014

3 Claims.

This invention relates to improvements in fastening devices, and more particularly to the kind of slide fastening devices set forth in our prior Letters Patent No. 2,013,706, granted September In our prior patent above mentioned, the fastening device shown therein consists of a plural-- ity of slide clip members connected at spaced' distances along a flexible element. The slide clip members when in use upon the beaded edges of the walls of an opening to be closed are intended to be moved to an open position to one end of such. opening with the clip members in contact with each other, but due to the connection of the flexible element by the formation of eyes at the inner end of one of the sides of the clip members, diiTIculty has been experienced in causing the clip members to assume a position in parallel contacting relation for the reason that there was insufficient space between'the eyes of the meetl ing clips to accommodate the adjacent bends of the exibleelement. This condition resulted in causing the outer ends of the clip members to abut While the inner ends assumed a spaced apart 5 relation, thus preventing the said clip members from assuming a compact uniform, parallel relation. Therefore, one of the features of the invention resides in a novel construction of clip slide member which when a number of them are 0 arranged upon a flexible element at spaced distances therealong, enables the members to assume a maximum compact parallel position one against the other when-the fastening device is in opening position. 5 Another feature of the invention is the provision of a slide fastening device composed of a plurality of U-shaped clips having eyes at the terminal ends of one of their legs through which the connecting flexible 'element passes and by which the clips are i'lxedly secured to the flexible element, the opposite sides of th eyes being notched to accommodate the adjacent bends of thejoined portions of the flexible element which permits the straight side edges of adjacent clips when the fastening device is in use upon an artielel to be dosed thereby.

Other objects of the invention will appear as lo the following spe'ccation is read in conjunction with the accompanying drawing', in which:

Figure 1 is a front elevational view of the improved fastening device in position upon a bag.

Figure 2 is an enlarged vertical transverse sectional view on the line 2-2 of Figure 1.'

to be moved intoparallel contacting engagement Figure 3 is a vertical sectional view on the line 3 3 of Figure 2.

Figure 4 is a plan view of a plurality of fastening clips showing the same in intimate contact and looking in the direction of their inner ends, the connecting chain being omitted for the sake of clearness.

Figure 5 is a detail perspective view of one of the fastener clips per se, and prior to its attachment to the connecting chain. im

Figure 6 is a plan view of the clip in a flattened condition prior to the bending of the same to the desired U-shape.

Referring to the drawing by reference characters, the numeral I0 designates a bag, pouch, 15

or other like article having an opening to be closed, the walls of the mouth of which may be spread apart and are provided with beads I I-II arranged parallel and in side by side relation. The fastening device is designated in its entirety 20 by the letter A and includes a plurality of U- shaped clip members I2 connected together along one of their sides by a flexible element in the form of a chain I3. One of the end clips I2 and designated at B is tightly secured to the beaded 25 edges II of the article I0 and constitutes an an- 'chor clip, Whereas the remaining clip members I2 are freely slidable lengthwise of the beaded edges and when spread out along the beaded edges as shown in dotted lines in Figure 1, they 30 assume equi-distant spaced relation due to the fact'that the clips are respectivelyv connected to l the chain I3 at like spaced intervals. 'I'hus in the operation of the slide fastener, the clips I2 pull away from the anchor clip B when it`is de- $5 sired to close the opening in the article Ill and are moved to an open position against the anchor clip B into hunched formation as shown in full lines in Figure 1 to facilitate access to the article I0 through the opening therein.

Each of the U-shaped fastener clips I2 isA formed from a single blank of stiff bendable metal as shown in Figure V6 of the drawing, and the blank is of flat elongated configuration having parallel side edges I4-^I4, rounded ends I 5-I5 45 and a reduced neck I6 adjacent one of the rounded ends which is formed by notching or cutting away opposltesides of the material as at I 1. The blank is folded upon itself within the range between the dotted lines I8-I8 so as to assume a sub- 60 stantially U-shaped cong'uration as shown in Figure 5. The bending of the blank into U-shape provides a bight portion I9 and spaced legs '20 and 2l.' The notched end of the blank constitutes an extensionoi the leg '2| vand is folded inwardly substantially on the dotted line 22 to provide a restricted mouth at the open end of the U-shaped clip, after which that portion of the blank beyond the in bend, namely the neck I 6 and the headA .10 bottoms of the eyes are vof less width to provide ample space between` the eyes when the clips I2 are in bunched position one against the other to accommodate the bends or adjacent links ofthe chain at the point where the fastener clips are secured to the chain. 'I'his space or gap between adjacent eyes 24 is clearly illustrated in Figures 3 and 4 of the drawing, and permit the straight -side edges I4 of adjacent U-shaped clips I2 to atly contact in order that the clips may assume a parallel relation one against the other when moved to their open position as shown in full lines `in Figure 1 ofv the drawing. The head portions 23 after theeyes are formed imparts the appearance when looked atI in side elevation, that thev 25 eyes are of the same width throughout as the body of the clips, thus maintaining the straight side effect and forming a continuous uninterrupted appearance when the clip members are in hunched open position as seen by reference to Figure 1.

Furthermore, the eyes 24 which serve to'connect the clips to the chain are formed beneath the inwardly bent portions of the legs 2| to position the eyes inwardly of the outer face of the legs 2I to avoid any outwardly projecting parts-which would make the fastening device bulky or unsightly. .f i f In Figure 5 of the drawing, there is shown one of the clips I2 with'its eye 24 in an open position prior to its being finally bent around the fastening chain I3. When the eye is bent to its final position, it lfirmly grips the chain to prevent possible shifting of the clip relative to the chain.

From the foregoing description, it will be seen that we have provided an improvement over` our 5 prior patent above mentioned in that the clip members may be moved into intimate parallel relation with' respect to each other which affords a maximum opening of the mouth of the article when access to the interior is desired. This irn- 50 proved feature causes the U-clip members to assume an orderly parallel relation at all times and to cause the slack looped portions of the chain to hang gracefully and uniform as shown in Figure 1 when the clip members are in hunched 55 position against the anchor clip B.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent of the United States, is

; 1.111 an article mangas opening therein,

the walls of which may be spread apart, beads provided on the walls of said opening lengthwise thereof, a fastening device including a iiexiblel element, a plurality of U-'shaped clips slidably 5- embracing said beads, eachof said U-shaped clips having the free end of one of its legs extending inwardly and provided with an eye at the terminal end thereof, the4 flexible element passing through the eyes of the .respective vU-shapedw clips and xedly secured thereto in spaced relation therealong, and notches provided in the v opposed side edges of said eyes at the outer portions thereof to accommodate the bends in said l flexible element when the U-shaped clips are 15 moved to a bunched position one against the other with portions of the flexible element between said U-shaped clips disposed in loop formation.

2. In an article having an opening therein, the 20 walls of which may b e spread apart, `parallely beads provided on the walls of said opening, a slide fastener device includinga plurality of U.shaped clip members embracing said beads,

the free end of one of the legs of each' U-shaped 25 clip member extending inwardly, eyesl at the terminal kends o f the inwardly extending portions of the legs of Ysaid U-shaped clip members, a chain passing through said eyes, said eyes tightly gripping said lchain at. spaced distances there-.v0

along, said -clip members adapted to be spread out along the beads when in closing position and adapted to be moved into engagement with each other when in open position, and notches provided in the ends of said eyes for accommodating 35 certain links of said chain when the clip members are in open position to enable the clip members to assume lcontact; with each other in parallel relation with intermediate portions of the chain extending in loop formation. '40

, 3. A Aslide closure device comprising'in combination a plurality of U-shaped clip members, each of said U-shaped clip members being formed of a single elongated strip of at stii bendable ,material bent upon itself into U-shape, one of I `the legs of each U-shaped clip member having an integral extension portion, an eye formed from the extension portion and disposed within the. plane of the outer surface of the leg on which it is formed, opposed side edges of the extension portion of each clip member being notched inwardly of the free end thereof, and a flexible element passing through the eyes of the U-shaped clipl members and being tightly "gripped thereby4 at 4 spaced distances therealong substantially as and for the purpose specified.

NATHAN KASE. LOUIS WIESENFELD.

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