US1889467A - Separable fastener - Google Patents

Description

Nov. 29, 1932. I DALTQN 1,889,467 I SEPAR'ABLE FASTENER Filed Sept. 14. 1951 BY/ R Patented Nov, 29, 1932 UNITED STATES PATENT I OFFICE DANIEL F. DALTON, OF WATERBURY, CONNECTICUT, ASSIGNOR TO. THE SHOE HARD- WARE COMPANY, OF WATEBBURY, CONNECTICUT, A CORPORATION OF CONNECTICUT snrananLn ras'rnnnn Application filed September 14, 1931. Serial No. 562,615.

My present invention relates'to improvements 1n separable fasteners and more particularly to an improved means for insuring the positive and easy opening or disengagement of the interlocking elements from each other;

Separable fasteners as manufactured at the present day consist of a pair of corded tapes or stringers, each equipped with a plurality or series of interlocking elements ar- ',ranged in parallel relation with respect to each other and on the stringers is arranged a slider which in its movement causes the engagement .or disengagement of the series of interlocking elements. T Ordinarily stop members are attached to'what may be called the upper end of one or both of the stringers adjacent to the top-most interlocking element thereon, and this stop member or stop members act ,to limit the sliding movement of the slider on thestringer in the operation of causing the engagement of the interlocking members.. on the stringers. Such stop niember or stop members ordinarily have a tendency to wedge within the limits of the slider and make it .extremelydiflicult to start 7 the slider in a direction to cause the disengagement of the interlocking members. If the stop member or stop members are d1s- 'pensed with or if it. or they are placed too far from the top-most interlocking element,

all of the interlocking elements are brought into engagement with each-other, which is the preferable arrangement,-but under these circumstances the top-most interlocking element ,goes into a position directly beneath or in alignment with the wedge shaped frog forming a, part of the slider and 7111011 acts as a cam to cam the series-of interlocking elements apart. Under these circumstances, therefore, the top-most interlocking element .acts as a stop and it is impossible to start the slider on its disengaging movement without .manually manipulating the stringers to pull the top-most portion of the stringer or stringers laterally, so as to provide a .path

into which the wedge-shaped frog may be led. Also with prior arrangements 1t is 1mpossible to bring the free ends of the strlngers or that end of the stringers beyond the stop member or members closely together and, therefore, it is impossible to substantlally close the gap in which the stringers and interlocking elements are placed.

As stated above the desirablecondition is when allof the interlocking elements are in and sure'opening of the stringers or the dis engagement of the interlocking elements with respect to each other. Specifically my improvement consists in providing an element or a. plurality of elements on one or both of the stringers adjacent to the top-most interlocking elements and providing such elements or members with beveled free ends, the only requirement being that such beveled end shall lie at one side of a line passing through the interlocked portion of the interlocking elements and the center of the frog of the, slider. it possible to always insure that the wedge shaped frog of the slider may be moved into position with respect to the interlocking elements to cause the disengagement thereof wedge-shaped This construction makes as the wedge shaped frog engaging the beveled end of the said element or elements causes .a lateral movement-of the portion or portions of the stringer or stringers to which 1 the same are attached and thus provide a V- shaped path into which the wedge shaped frog of the slider may move.

The object of my invention, therefore, is an improved separable fastener J In the accompanying drawing illustrating a preferable embodiment of my invention.

Figure 1 is a front elevation of a separable fzistgner to which the invention has been app m I Fig. 2 is a top plan view of Flg. 1; Fig.3 is a vertical section on the line 33 of Fig. 2, showing the slider in one position 100 andv Fig. 4 is a vertical section similar to Fig. 3, but showing the slider in another position.

Referring to the drawing 10 and 11 designate a pair of stringers each provided with a corded edge 12 and arranged on the stringer 10 is a series 13 of interlocking elements that may be engaged with or disengaged from a like series of interengaging elements 14 attached to the stringer 11. The stringers 10 and 11 are attached together at their lower ends by a clip 15. Attached to one of the stringers as the stringer 11 is a stop member 16 arranged at any convenient point above the top-most interlocking element of the series 14 and it is obvious that a similar stop member may be attached to the corded edge of the stringer 10. Slidably mounted on the stringers 10 and 11 is a slider 17 provided between its front and back faces 18 and 19, respectively, with a wedge shaped frog 20 and with inwardly extending flanges, as the flanges 21, defining a single channel that merges into two channels, one on either side of the wedge shaped frog 20. If the slider 17 is moved upwardly in Fig. 1, it is obvious that the series of interlocking elements 13 and 14 will be moved downwardly relative thereto and into interlocking position as shown in Fig. 3, so that when the slider 17 has moved into engagement with the stop 16, all of the interlocking elements of the series 13 and 14 will be in engagement with each other.

Attached to the corded edge of the stringer 10 immediately above the top-most interlocking element of the series 13 are cam members 22, the inner ends of which are beveled to form cam surfaces as shown, and the length of the top-most member 22 is such that the bevel lies to the right of a line passing through the center of the wedge shaped frog 20 and the interlocking portion of the Series of elements 13 and 14. Also attached to the corded edge of the stringer 11 above the top-most interlocking element of the series of elements 14 are cam members 23, the outer free ends of which are beveled in the same manner as the cam members 22.

As will be seen from an inspection of Fig. 3, the top-most member 22 lies either below the lower-most part of the slider 17 or in the single channeled portion thereof and it will be obvious that if-such slider '17 is moved downwardly from the position shown in Fig. 3 to the position shown in Fig. 4 that the wedge shaped frog 20 will engage with the bevel on the upper-most member 22 and such member 22 and also that portion of the corded edge of the stringer 10 to which such member 22 is attached will be moved laterally outward, or will be guided into the right-hand fork of the passage in the slider 17. Continued movement in a downward direction of the slider 17 will bring the wedge shaped frog 20 into engagement with the beveled end of the top-most member 23 on the corded edge of the stringer 11 andby referring to Fig. 4, it will be obvious .that this downward movement of the wedge shaped frog 20 will cause a separation of the upper ends of the stringer 10 and 11, so as to bring the wedge shaped frog 20 into such a position relative to the series of interlocking elements 13 and 14, as to insure a positive and easy opening of the gap to which the stringers may be attached or the disengagement of the series of interlocking elements.

Referring again to Fig. 3, it will be obvious that the upper free ends of the stringers 10 and 11 may be brought into close association with each other above the stop member 16 and thus practically close any gap to which the stringers 10 and 11 may be attached. Also this bringing together of the corded edges of the stringers 10 and 11 will have no effect on the locking of the slider 17 as such slider does not engagewith any interlocking element until the wedge-shaped frog 20 thereof has moved through a distance of practically the length of the slider.

Having thus described my invention what I claim and desire to protect by Letters Patent is:

1. The combination with a Y-channeled slider, of a pair of stringers movable therethrough and provided with elements engageable and disengagable by means of the slider, and means on said stringers adjacent the last, of said elements for engaging the slider to permit the latter to he slid from complete disengagement with said elements into engagement therewith, said means being freely movable through thechannels of the slider.

2. The combination with a slider having diverging channels and. a pair of stringers 1 provided with elements engageable and disengageable by the slider, of means attached to the stringers cooperating with the slider and capable of being passed completely into the diverging channels, for initiating separation of the elements from fully interlocked position on operation of the slider, and of means independent of the first mentioned means for stopping movement of the slider.

3. The combination vwith a slider, of a pair of stringers movable therethrough and provided with interlocking elements and cam members .on each stringer adjacent the endmost elements, said cam members being freely movable through the slider and cooperating therewith to spread the stringers, said cam members being spaced apart on each stringer ap roximately the same distance as the interloc ing elements.

4. The combination with aslider having diverging channels and a pair of stringers provided with elements engageable and disengageable by the slider, of means attached tothe stringers capable of being passed completely into said channel, and having beveled part of said slider,

ends cooperating with the slider for initiating separation of the elements from fully interlocked position on operation of the slider. 5. In a separable fastener, the combination of opposed stringers equipped with interlocking elements, a slider having a length of stroke sufiicient for completely engaging and disengaging said elements, a frog forming and threading means mounted in staggered relation on the stringers and .cooperating with the frog of the slider for initiating separation of the interlocking elements from fully interlocked position on operation of the slider.

6. In a separable fastener, the combination of a pair of stringers equipped with interocking elements, a slider mounted thereon j movable along the stringers to engage and disengage the elements, a wedge shapedfrog 011 said slider, members secured to the stringers adjacent to the interlocking elements and so formed and arranged with respect to the frog as to engage therewith during its movement from free position to initiate disengagement of the. interlocking elements from their fully interlocked position, and means secured to at least one of the stringers and spaced from said members for limiting movement of the slider.

7. In a separable fastener the combination of a pair of stringers arranged parallelto each other, and each equipped with a series of interlocking elements, the series of elements on one stringer adapted to interlock with .the series of elements on the other stringer, a slider mounted for sliding movement on the stringers and provided with a wedge shaped frog adapted to move the series of elements from engaging to disengaging position, and members attached to one of said stringers adjacent to the end of the seriesof elements thereon, said members being provided with beveled ends so positioned 'withrespect to the frog as to engage with the same upon movement of the frog from free position and thereby force the stringer laterally to initiate the disengagement of .the interlocking elements.

8. The combination with a slider having diverging channels and a pair of stringers provided with interlocking elementsadapted to be engaged and disengaged by theslider, of means operable by the slider for facilitating the engagement or disengagement of the interlocking elements, said means comprising members attached to the strin ers of a size to-enter and pass through 'the ivergent channels of the slider morereadily than the interlocking elements.

- 9. The combination with a slider having diverging channels and a pair of stringers provided with interlocking elements adapted to be engaged anddisengaged by the slider, of means operable by the'slider for facilitating the engagement and disengagement of I the interlocking elements, said means comprising a plurality of members attached to each stringer constructed and arranged to enter and pass through the divergent channels of the slider and projecting a less distance from said stringers than the nearest interlocking elements, said members being of progressively less length in the plane of the stringers in a direction at right angles to the opposed edges of the pair of stringers.

10. The combination with a slider and a pair of stringers provided with elements completely engageable and disengageable by the slider, said slider being movable to a position clear of said elements, of means attached to the stringers and operable by the slider for facilitating engagement and dis engagement of the endmost interengageable elements, said means projecting a less distance from said stringers than the nearest interengageable element.

11. The combination with a slider and a pair of stringers provided with elements completely engageable and disengageable by the slider, said slider being movable to a posi tion clear of said elements, of means attached to the stringers and operable by the slider for facilitating engagement and disengagement of the endmost interengageable elements, said means being spaced from the nearest interengageable element approximately the same distance as the interengageable elements are spaced from each other.

12. The combination with a slider and a pair of stringers provided with elements completely engageable and disengageable by the slider, said slider being movable to a position clear of said elements, of means attached to the stringers and operable by the slider for facilitating engagement and disengagement of the endmost interengageable elements, said means being approximately the same width in a direction normal to the plane of the stringers as are the interengageable elements, and being secured to said stringers in ,the same way as the interengageable elements but projecting from said stringers a less distance than the interengageable elements.

13. The combination with a slider having diverging channels and a pair of stringers provided with interlocking elements adapted to be engaged and disengaged by the slider,

of means operableby the slider for facilitatingthe engagement and disengagement of the interlocking elements, said means comprising members of less length than the interengageable elements whereby they will enter the slider more easily and without j amming.

Signed at Waterbury; county of New Haven, State of Connecticut, this 15th day of August, 1931.

' DANIEL 'F. DALTON.

Ill

Images