US2349580A - Separable fastener - Google Patents

Description

May 23, 194% D. MARINSKY E-rm. v 2,349,580

` SEPARABLE FASTENER Filed April 22, 1942 ATTORNEYS UNITED .STATES PATENT OFFICE' 4lil Es.

employing stringers coupled and uncoupled by a slider movable along the stringers and more particularly to a special form of automatic lock for retaining the slider against movement along the stringers in which a lock memberon the-slider is made to engage with the links or scoops at portions other than the exposed sides thereof.`

. The novel features of the invention will be best' understoodl from the following description when taken together with the accompanying drawing,

in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each o the views; and in which:

Fig. i is a sectional view through a slider arranged upon the atringers of a separable fastener showing the slider in locked position.

Fig. 2 is a partial section on the line 2 2 of Fig. i. i

Figa-3 and el are views similar to Fig. 2 showing the slider in two different unlocked positions.

,Fig 5 is a perspective View oi' a link or scoop detached.

Fig. o is a perspective and sectional view of the slider detached; and

Fig. '7 is a perspective view showing a modified form of link or scoop which is employed.

in the construction of separable fasteners oi the mnd under consideration employing sliders having locking means for retaining the slider against movement along the stringers, it has been the common practice to arrange the locking pins oryelements in a position to ride over upper or outer surfaces oi' the links or scoops. 'When these are plated or coated, lthe loch pins or elements tend to mar or deface the stringere. Furthermore, with the conventional type ci locking means, the lock element engages the compara-` tively narrow edge of the link or scoop which produces an uncertain locking engagement.

it is the purpose oi. our invention to overcome the above and other 'objectionable features to the conventional type of lock slider construction by mounting on the slider a locking member, preferably spring-actuated, which will engage a link or scoop at a point between its two sides.

m the illustrative form oi our invention shown herein, the slider isprovided with a transverse bar yoke, or what might be termed a "whime and the scoop, Either one or both of the ends of the transverse bar yoke may extend through the corresponding w'allof the slider and be provided with a pull tab so 'that a pull on either pull tab will not only. move the slider, but will automatically release the lock. This provides a strong and positive lock for the slider which will not mar or deface the outer visible surfaces of the links or scoops and one which may be released from either side oi the slider.

In Fig. l oi the drawing, lo represents the Stringer tapes, ii the links or scoops attached to the beaded edge i2 oi the tapes. The slider employed for coupling and uncoupling the stringer tapes is shown at it.

Each link or scoop comprises a yoke-shaped mounting end portion id arranged upon the beaded edge i2 and a coupling end portion .having a projecting knob it on one side,v andare- `cess or socket it on the other side; to receive the knob it of the link or scoop of an opposed l Stringer. rilhe outer end of the coupling end portion has a projecting substantially hook-sha member or nose ii preierably of a width slightly.

less than the width of the link or scoop, as clearly seen in Fig. 5 of the drawing and the upper surface lof this nose, where it joins the bevelled outer surface it of the scoop, forms a recess or pocket i@ adapted to receive the coupling element to of the slider ii.

The element it, iny the construction shown, is in the form oi a bar yoke or what might be termed a whiiiietree. The element d@ operates in elongated apertures 2i formed in opposed 'side` Walls 22 oi the slider, the apertures extending irlto the web or frog 23 which joins the walls 22 centrallyI of the wide end of the slider, as is clearly illustrated in Fig. 6 of the drawing. The frog 23 also has centrally and longitudinally thereof an enlarged bore 2d in which is arranged a coil spring i5. The spring 25 seats upon one edge of the element 2@ and around a projecting' tongue 26j on said edge. Theother edge portion tree, yieldingly supported in the cross vweb or irog oi' the slider and arranged to contact with the outer end oi a scoop,this outer end preferably being provided witha projection to insure a better locking engagement between 2l oi the element is adapted to engage the nose ill and to seat iii the recess lo, as is clearly illustrated in Fig. l. ofthe drawing. r

In the construction shown, the element 2d projects beyond both walls 22 of the sliders, which adapts they sliders to the dual use of operation from either side of the fastener. However, where ,this is not essential, the element will project from one side only. rIhe projecting ends of the element it have nger pieces or pull tabs 2d couthe yoke g5 pled therewith, these pull tabs being pilvoted on acting the projecting ends of the element'in order to swing toward either end of the slider.

The spring 25 normally holds the element 20 in the locked position, as seen in Figs. l and 2 of the drawing. In moving the slider along the stringers to uncouple the same, the element will be moved .into the position shown in Fig. 3, the pull on the finger piece 28 being in the direction of the arrow X of said figure, whereas in coupling the stringers, lthe finger piece is pulled in the direction of the arrow X2 of Fig. 4. In both of these operations, the element operates in the manner of a whiilletree. It will be understood that the elongated slots or apertures 2| are of sumcient length and so arranged asto not only disengage the element 20 from the projecting nose l1, of the scoop of each stringer, but also out of the path of the scoops in passing into and out of the diverging channels at the wide end of the slider.

For purposes of description, the end 29 of the element will be regarded as the inner end and the end 30 the outer end. In the normal position of the element, as seen in Fig. 2, these ends are arranged in transverse alinement with the Cil it will be understood that in the event of a stress or strain applied to the stringers l0, tending to separate the same, the element 20 will force the engaged link or scoop I4 upon the next adjacent link or scoop, thus definitely blocking further movement of the slider and producing a positive lock thereof even to the degree of movement of the element from the position shown in Fig. 2 to a position where the element element seating on the end wall 3i of the apertures 2|. In operating the finger piece, as shown in Fig. 3, the end portion of the element pivots on the wall 3l, thus throwing the other end 29 in the direction of the wall 32 of theaperture 2l; whereas in operating the element, as shown in Fig. 4, the end 29 seats on the wall 3| and the end 30 is moved into engagement with the wall 3,2. Both angular positions of the element, illustrated in Figs. 3 and 4 of the drawing, will provide free passage of the links or scoops through the slider. It will, of course, be apparent that upon releasing the pull on the finger piece, the spring 25 will automatically return `the element to the llocked or normal position, as illustrated in Fig. 2 of the drawing.

It will, of coursefbe apparent that the invention is applicable to links of any type and construction, so long as the structure of the link is such as to provide a part with which the lock member will engage. In Fig. 7 of the drawing, the principle of the invention is shown applied to what is termed a double acting link or scoop, that is to say, a link or scoop having two similar or identical coupling side surfaces each having male and female coupling portions. This double n link or scoop is identiiied generally by the reference character 33. The mounting end portion 34 of the scoop is yoke-shaped in form 'and the coupling end portion 35 is provided on opposite surfaces with substantially triangular projecting y coupling portions 36 inwardly of which are recesses 31 to receive the portions 36 of opposed scoops. The recesses 31 have key elements 38 centrally thereof adapted to enter channels 39 formed in the outer surfaces of the scoops. At the `outer end of the scoops and projecting in the direction of the upper and lower surfaces thereof are pairs of members 40 equivalent in all respects to the member l1 with the exception that they are arranged adjacent side surfaces of the scoops 33; rather than being arranged centrally of the scoops, as seen in Fig. 5 of the drawing.

With the construction shown in Fig. 7, itwill be apparent that the lock element of the slider, depending upon the position of the slider on the stringers, can operate upon either pair of mem- 'bers 40.

engages-the wall 32 assuming that such movement were possible in an excessive stress or strain.

The bar-like` lock element actually forms an extension to the contracted inner end of the web or frog of the slider. This element projects in the manner of a n to provide a block for the free passage of the links or scoops through the slider, particularly with respect to engagement with the hook-shaped projections employed. Furthermore, this element may be said to comprise a blocking element arranged at the intersection of the diverging channels of the slider.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. The combination with a channeled slider body having diverging channels at one end thereof, of .a spring actuated lock element traversing the channel of the slider at the intersection of said diverging channels means for mounting said locking element to permit longitudinal movement thereof in relation to said slider. Stringer scoops movable through the channels of said body in coupling and uncoupling scoops of opposed stringers by movement of the slider longitudinally thereof, outer extremities'on said scoops having projecting members adapted to engage the lock element of the slider in automatically checking movement of the slider in one direction on said stringers, and means whereby said element may be moved out of engagement with the projecting members of said scoops in operating. the slider longitudinally of the stringers.

2. The combination with a channeled slider body having diverging channels at the wide end thereof, converging to a single channel at the narrow end thereof, of a lock element normally blocking the channel at the intersection of said diverging channels, resilient means normally urging said element longitudinally of the slider and holding said element in blocking position, and means whereby said element may be moved against the action of said resilient means intoA unblocking position.

3. The combination with a channeled slider body having diverging channels at the wide end thereof, converging to a single channel at the narrow end thereof, of a lock element normally blocking the channel at the intersection of said diverging channels, resilient means normally supporting said element in blocking position, means whereby said element may be moved against the action of said resilient means into unblocking position, said element comprising a bar having end portions projecting from both side walls of the slider, and the slider havingv an elongated channel in which said bar is freely movable longitudinally of the slider. i

4. The combination with a slider having a lock element to engage the scoops of stringers in retaining the slider against movement in one direction on the Stringer, of a stringer scoop comprislng a mounting end portion and a coupling end portion, and the outer extremity of the coupling coupling end portion having male and female elements providing interengagement of scoops of opposed stringers, and the outer extremity or the scoop having a projecting slider'locking nose'.

6.' A scoop device for stringers of separable fasteners employing lock sliders movable along the stringers. said scoop comprising a mounting end portion and a coupling end portion, said coupling end portion having male and female elements providing interengagement of scoops of opposed stringers, the' outer extremity of the scoop hav- 1 ing a projecting slider locking nose, and said nose being arranged within the limits of vside surfaces of said scoop.'

'7J-A lock slider for separable fasteners, said slider comprising a channeled body having walls spaced at the wide end of said body by a connecting Vfrog forming diverging channels at the wide end of said body, a lock element movably supported in the f rog of said slider to extend into the channel thereof `at the intersection oi said diverging channels, and a spring mounted in the slider and engaging said element, to normally hold the said element in, projected operative position in the channel of said slider t. A lock slider for separable fasteners, said slider comprising a channeled body having walls spaced at Vthe wide end of said body by a connecting frog forming diverging channels at the wide end of said body, a lock element movably supported in the frog of said slider to extend into the channel thereof at the intersection of said diverging channels, a spring mounted in the slider and engaging said element to normally hold the said element in projected operative position in the channel of said slider body, opposed' walls oi the slider having elongated apertures in alinement with said frog, and said element having end portions projecting beyond the channel oi' the slider into, and operating in, the apertures oi said er Walls. i A separable-fastener oi the class described, comprising stringere coupled and uncoupled bv a slider movable along the stringers, said stringers having scoops with coupling portions project ing from one edge thereof, a slider movable alone the scoops of both stringere to couple and uncouple the same, a lock element on the slider -arranged to engage a scoop between the side walls thereof to check movement oi' the sliderin one direction on the stringers, and a spring located between the side walls oi the slider and adapted to hold the locking element in operative posi tion.

iii. A slider for` separable `fasteners having top and bottom walls spaced and' connected bya web portion, said walls and web portion partly deng a pair oi channels converging into a single channel having an axis coinciding with the lone gitudinal axis of' the slider. said slider being adapted to couple and uncouple opposed series oi scoops mounted on stringers, said scoops having side portions in juxtaposition to the said slider walls; a lock element arranged transversely of the slider; means mounting the element for aaiasso 7o slider walls:

engagement with the scoops at points between the said side portions thereof. and for movement out of said engagement:v resilient means urging the lock element longitudinally of the 6 slider into engagement with the scoops: and pull meanst to release the element from saidy engagemen L 11. A separable fastener of the class described, comprising stringers coupled and uncoupled by 10 a slider movable along the stringers, said stringers having scoops with coupling portions projecting from one edge thereof. outer ends of the coupling portions ofy the scoops having projecting members, a slider movable along the scoops oi both stringers to couple` and uncouple the.same.

said slider `having top and bottom walls spaced' and .connected by a web portion, said walls and A web portion partly deilning a pair of channels conversing into a single channel having an axis 2o coinciding with the 1ongitudina1 axis of the slider;

' a lock element arranged transversely of the slider; means mounting the element for movement longitudinally of the slider and into engagement with the scoops at points between the said side portions thereof. and for movementout of said engagement; resilient means urging the lock element -lonsitudinalLv of. the slider into engagement with the scoops; and pull means to release the element from said engagement. s

- l2. A slider for separable fasteners having to and bottom walls spaced and' connected by aweb portion, said walls and web portion partly delin- 'ing a pair `of channelsconverging into a single channel having an axis coinciding with the longitudinal axis of the slider, said slider being adapted to couple andimcouple opposed series oi scoops mounted on stringers, said scoops having -side portions in juxtaposition to the said slider walls; one of said walls'having an aperture there- 40 in elongated longitudinally of the slider'. said aperture being dened by edge portions; an elongated lock element arranged transversely of the slider and extending through said aperture and having an end extending beyond said wall oi the slider adjacent said aperture, said loci; element being slidably and pivotally mounted in rclation to each of said slider walls; means in each oi said slider walls including edges of said aperture, providing a pivot for the rocking movement of said element and a bearing to guide and limit the sliding and rocking movement ci said element; resilient means mounted wi the boundaries of said slider walls and urging d vlock element longitudinally of the slider-vinto en sagement with said scoops; and pull means con nected to said end oi the lock element to s said element about each of said pivots against the urge oi said resilient means to release said element from locking engagement with said a@ scoops.

i3. A slider for separable fasteners having top bottom walls spaced and connected'by a web portion. said walls and web portion partly des L- 1- a pair of channels converging into aiaingle hannel having an axis coinciding with the lon edse portions; an elongated look element arranged transverselv ot the slider and within said movement longitudinally of the slider and into 7i;l apertures. said elementextending beyond one of said slider walls and having an end portion adjacent thereto, edge portions of said apertures providing means pivotally and siidably mounting the lock element in each of said slider walls; resilient means slidably urgingwthe lock element into locking engagement with said scoops; and pull means connected to said end portion of the -lock element to swing said element about each of said pivots against the urge of said resilient means to release said element from said locking engagement.

14. A slider for separable fasteners having top and bottom Walls spaced and connected by a. web

portion, said walls and web portion partly defining a pair of channels converging into a single channel having an axis coinciding with the longitudnal axis of the slider, said slider being adapted to couple and uncouple opposed series of scoops mounted on stringers, said scoops having side portions in juxtaposition to the said slidg3g er walls, said walls having transversely aligned apertures therein elongated longitudinally or the slider9 said apertures being defined by edge portions; an elongated lock element arranged transversely of the slider and within said apertures. said element extending beyond each of said slider walls and having end portions adjacent said apex'-` tures, respectively; edge portions 'of said apertures providing means pivotally and slidably mounting the lock element in each of said slider walls; resilient means slidably urging the lock element into locking engagement with said scoops; and pull means connected to each of said end portions ofj'the lock element to Iswing said element about each of said pivots against the urge of said resilient means fto release saidelement from said locking engagement. l

DAVIS MARINSKY. LOUIS H. MORIN.

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