US2164937A - Noncrushing slider - Google Patents

Description

Patented July 4, 1939 I UNITED STATES PATENT OFFICE NONCRUSHING SLIDER Louis H. Morin, Bronx, N. Y., assignor to Whitehali Patents Corporation, Bronx, N. Y., a corporation of New York Application November 28, 1938, Serial No. 242,736 n 4 Claims.

This invention relates to sliders of slide fasteners employing stringers coupled and uncoupled by the movement of the slider longitudinally thereof. More particularly the invention relates to the construction of the pivot post or lug on the top wall of the slider and with which the pull is pivotally connected in such manner as to provide, as a continuation of or part of this lug, a raised reinforcing body disposed directly over the connecting web joining top and bottom walls of the slider so that any crushing strains to which the upper surface of the slider may be subjected is taken up by said raised reinforcing body and not transmitted to the upper wall of the slider which would otherwise tend to crush or distort the slider, jamming the same upon the stringers or otherwise rendering the same inoperative. The novel features of theinventionwill be best understood from the following description and annexed drawing, in which one embodiment of the invention is disclosed and in which the separate parts of the device are designated by suitable reference characters in'each of the views, and in which? Fig. 1 is a plan view of a part of a slide fastener showing a slider thereon with part of the construction broken away.

Fig. 2 is a longitudinal sectional view through the slider shown in Fig. 1, detached and diagrammatically illustrating the same between two surfaces.

Fig. 3 is a side view of the slider shown in the normal cast position thereof and prior to the attachment of the finger piece or pull therewith, and

Fig. 4 is a view similar to Fig. 2 showing a conventional form of slider and illustrating the effect of a crushing strain or force applied there- In sliders of the type and kind under consideration where a pivot post or lug is provided on one surface of one of the side walls of the type of device, when applied to certain types of garments which are subjected to pressing or otherwise subjected to a pressure applied to the upper surface or wall of the slider, the downward pressure, for example of a surface such as indieated in dot and dash lines at IU, would engage the upwardly projectingstud I which is usually arranged centrally of the slider and would tend to force the free end of the top wall 6 downwardly in the direction of the bottom wall Go, as 10 is highly exaggerated by the dotted line illustration of the wall 6 in said figure. It will of course be understood that the links of the fastener stringers are disposed between the walls. However, this downward pressure I have found from experience, would tend to jam the slider upon the stringers and would at least momentarily render the fastener inoperative. This is especially true in placing garments in pressing machines where considerable pressure is applied in the pressing or creasing of garments.

To overcome this objectionable feature in fastener devices which are applicable to garments or other supports subject to pressure on the upper surface thereof, I have provided a slider such as shown in Figs. 1 to 3 inclusive, comprising a slider body ll having top and bottom walls l2, 7 II joined at one end by the usual substantially V-shaped connecting web I. With this construction I-provide a pivot lug consisting of a large and long reinforcing body part l5 and a substantially hook-shaped part I6 between which is a recess I! which is normally open in the initial 1 formation of the slider as is seen in Fig. 3 of the drawing, so as to permit the arrangement 'of the pivot crosshead end l8 of a finger piece slider for the attachment or pivotal support of a finger piece or pull therewith, such sliders have been subjected to distortion or crushing rendering the same inoperative and actually destroying the complete fastener. To illustrate one of such sliders, I have shown in Fig. 4 of the draw ing a slider 5, the top wall .6 of which is provided with a pivot lug or coupling 1, in connection with which the pivot end 8 of a finger piece or pull 9 is mounted. One slider having a finger piece or pull mounting of this general type and kind is illustrated, for example, in Patent #2,123,512, granted July 12, 1938. With this or pull IS in the recess l1 prior to closing the hook I8 as is shown in Fig. 2 of the drawing.

The body is extends longitudinally of the top wall of the slider to the wide end portion thereof 40 and is arranged directly above the connecting web II with the upper surface I511 of the body I! arranged-above the upper surface of the hook l8 when in its closed position, as is clearly seenin Fig. 2 of the drawing, so that in the pressure movement of a surface as at Illa of, for example, the board or placque of a pressing machine, in the direction of the upper surface of the slider II. the thrust will be taken directly upon the body I! and transmitted through said body and the connecting web l4 to a lower supporting sur-- face or table lib, as is diagrammatically illustrated in Fig. 2 of the drawing, so that no crushing effect will take place upon the top wall I2 or' of coupling the upon the links 20, "a. of the separable fastener stringers 2|, Ila, parts of which are shown in Fig. l of the drawing.

It will also appear from a consideration of Fig. 1 of the drawing that the reinforcing or crushresistant body ll of the slider is preferably made of the same width as the width of the hookshaped part l6 so as to form a neat and finished appearance on the to keep the body I! substantially within the boundaries of the connecting web II, it appearing from Figs. 2 and 3 of the drawing that the length of the body I! is substantially equal to the length of the web ll, so that no strain will be transmitted to the top wall l2 when the surface lid is moved under pressure in the direction of the surface ill) with a slider therebetween' In order to perform the desired function in a slider of the character under consideration, it is essential that the non-crushing body be disposed and localized at the wide end of the slider and above the connecting web, showing the top and bottom walls of the slider, and further in forming a more or less solid wall structure through the depth of the slider at this particular section or area. I am well aware of the fact that sliders have been made wherein a rib or channel wall of the slider, but in such cases-the outer surfaces of the rib have had the same spacing throughout the length of the rib and therefore the weakened contracted end of the slider has been subjected to the stress or strain and would .-be compressed onto the links of the stringer to jam the slider thereon and not perform the function which is successfully performed with my inproved slider construction.

It will also be apparent that the finger piece or pull it is provided with a large opening 22 at the pivot end portion l8 thereof so as to permit the pull to be moved into either of the depressed positions illustrated in full and in dotted lines in Fig. 2 of the drawing, so that the parts ii and It will be cleared by the pull and the pull well below the upper surthe reinforcing non-crush body ii of the slider. It will of course be apparent that my invention is applicable to sliders having different forms of mountings of the finger :pieces and pulls in connection therewith, and in the present construction it will be apparent that the body It forms part of the pivot lug on the pull. That is to say, the wall lib defines part of the boundary walls of the aperture or recess l1 receiving the pivot pin it of the pull, and the pull engages the wall lib in the movement of the slider along the stringers in the operation links 2., 200.. It will thus be seen that the body I! also forms a strong or well reinforced backing to resist the stress or strain of the pull upon the slider in the operation of closing the fastener.

Having fully described claim as new and desire to cm, is:

l. A non-crush slider for separable fasteners of the character described, said slider comprising top and bottom walls having narrow and wide end portions, said walls being joined and my invention, what I secure by letters Patspaced at the wide end portion by a connecting web, the top wall having integral means on the top of the slider, and further has extended longitudinallyof the upper 1 outer surface thereof for coupling a finger piece or pull therewith, said means comprisinga hookshaped member arranged upon the narrow end portion of said wall and an enlarged solid reinforcing body arranged upon the wide end portion of said wall, the upper surface of said body being arranged above the upper surface of said hook shaped member, said body forming in conjunction with said member a recess for receiving the finger piece or pull, and said bodyextending longitudinally of the slider and directly above and in registering alinement with said connecting web so that pressure applied to the upper surface of'said slider will be taken up directly'through said body and web.

2. A non-crush slider for separable fasteners of-the character described, said slider comprising top and bottom walls having narrow and wide end portions, said walls being Joined and spaced at the wide end portion by a connecting web, the top wall having integral means on the outer surface thereof for coupling a finger piece or pull therewith, said means comprising a hookshaped member arranged upon the narrow end portion of said wall and an enlarged solid reinforcing body arranged upon the wide end portion of said wall, the upper surface of said body being arranged above the upper surface of said hook-shaped member, said body forming in con- Junction with said member a recess for receiving the finger piece or pull, said body extending longitudinally of the slider and directly above and in registering alinement with said connecting web so that pressure applied to the upper surface of said slider will be taken up directly through said body and web, and said body and hookshaped member being of substantially the same thickness.

3. A slider for separable fastener stringers of the character described comprising top and bottom walls joined and spaced apart by a connecting web arranged centrally of one end portion of the'slider, the top wall of the slider having two solid members integral with and projecting upwardly from the outer surface of said wall, one of said members being disposed directly over said connecting web and being of a length substantially equal to the length of said web, the other member being arranged adjacent the other end portion of said wall.and having a curved free end portion extending in the direction of the first named member and forming in conjunction with the first named member of the slider a pull receiving recess, and the upper surface of said,

first named member being arranged above the upper surface of the hook-shaped member whereby pressure applied to the upper surface of the slider will be taken up directly through said member and connecting web.

4. In a slider-having spaced walls joined at one end by a connecting web, means on the outer surface of one wall of the slider for coupling a pull therewith, said means being arranged on said wall in spaced relation to said connecting web, a solid reinforcing body integral with said wall of the slider directly over and in alinement with said web, and the upper surface of said body being arranged above the upper surface of said pull supporting means whereby pressure applied to the slider will be transmitted directly through said body and web.

' LOUIS H. MORIN.

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