US2174161A

US2174161A - Lock slider for separable fasteners

Info

Publication number: US2174161A
Application number: US177704A
Authority: US
Inventors: Marinsky Davis
Original assignee: WHITEHALL PATENTS CORP
Current assignee: WHITEHALL PATENTS Corp
Priority date: 1937-12-02
Filing date: 1937-12-02
Publication date: 1939-09-26
Anticipated expiration: 1956-09-26

Description

Sept. 26,1939. 1:. MARINSKY LOCK SLIDER FOR SEPARABLE FASTENERS Filed Dec. 2, 1937 2 Sheets-Sheet 1 INVENTOR 0414s M/P/A/SKY pt. 26, 1 D. MARINSKY 2,174,161

LOCK SLIDER FOR SEPARABLE FASTENERS Filed Dec. 2, 1937' 2 Sheets-Sheet 2 I/IIlI/IIAY I I A'I 'T ORN EY Patented Sept. 26, 1939 UNITED STATES PATENT OFFICE LOCK SLIDER FOR SEPARABLE FASTENERS Application December 2, 1937, Serial No. 177,704

' 6 Claims. (01. 24-205),

This invention relates to the sliders of separable fasteners and particularly to what are known as automatic lock sliders having means for engaging one or more links of a. fastener stringer to retain the slider against movement thereon; and the object of the invention is to provide a slider of the class described which is.constructed from die cast materials, preferably thermoplastic material, such for example as cellulose acetate; and

especially wherein the slider is provided with means in the form of a locking pin or part for retaining the slider against movement on the stringers of a separable fastener; a further objectbeing to provide a slider of the class dem scribed wherein the body portion proper-thereof is formed from a unitary casting and wherein separate independently cast parts are associated and coupled therewith; a further object being to provide a finger piece or pull cooperating with the locking pin whereby the pin maintains a locked position, when the pull is in inoperative position and further whereby the pin is moved into inoperative position when the pull is raised in operating the slider longitudinally of the stringers; a further object being to provide a pin part movably disposed upon the slider and in connection with which the pull is pivotally coupled with means involving a tensional device for retaining the pin part against displacement from the slider; a still further object being to provide a hood or housing portion partially enclosing the pin part and integrally or otherwise united with the body portion of the slider; and with these and other 86 objects in view, the inventionconsists in a device of the class and for the purpose specified, which is simple in construction, eilicient in use, and which is constructed as hereinafter described an claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is an enlarged face view of one end portion of a separable fastener showing one of my improved sliders thereon.

Fig. 2 is a partial section on the line 2-4 of Fig. 1.

Fig. 3 is a view similar to Fig. 2 showing the parts in a different position.

. Fig. 4 is a partial section on the line 4-4 of M Fig. l.

Fig. 5 is a side and sectional view of a modified form of slider.

vFig. 6 is a sectional view through the slider shown in Fig. 5 indicating the method of assembling same. 5

Fig. 7 is a partial section on the line '|-i of Fig. 5.

Fig. 8 is a partial section on the line 88 of Fig. 5.

Fig. 9 is a view similar to Fig. 5 showing an- 10 other modification; and,

Fig. 10 is a detailed view of apart of the construction shown in Fig. 9. v

In Fig. 1 of the drawings I have shown for the purposeof illustrating the general use of the in- 15 vention, portions of two fastener stringers ll--l la, consisting of the conventional stringer tapes to the beaded edges of which are attached coupling links or scoops I2--l2a, and when the latter scoops are composed of thermoplastic ma- 20 terial, such as cellulose acetate, the other parts of the fastener including the slider later described, are correspondingly formed. In the construction shown, the fastener is of a separable type having means at one end for detachably cou-' pling the stringers; this means consisting of a block l3 having an integral bar portion M disposed on and forming part of the stringer Ma and a bar [5 which is insertable into and out of the block l3 in separating the stringers; especially when the slider 16 is moved into juxtaposition to the block 13. At H are shown conventional reinforcing plates secured to the stringers H and. I2 adjacent that portion thereof engaged by the block I3. However, it will be understood that my invention is applicable to any type or kind of stringers. I

In the construction shown in Figs. 1 to 4, inclusive, the slider l6 consists of the usual or any desired body having a top wall 18, bottom wall l9, said walls being integrally joined by a substantially V-shaped connecting web 20. The slider is in the form of a die casting and while this casting may be metallic, the present structure relates primarily to the thermoplastic castings employing such materials as cellulose acetate.

The top wall 18 of the slider has an upwardly extending arc-shaped hood or strap 2|, which is integrally formed with the body of the slider and which may be formed and assembled in accordance with teachings later described. In practice I provide a member 22 having a-downwardly extending coupling element or pawl 23 which passes through and operates in an aperture 24 formed in the top wall l8 of the slider as seen in Fig.4 of the drawings; the member 22 also including an upwardly projecting rod or stem 25 which is free to move vertically in an aperture 26 formed in the strap or hood 2|.

In the construction shown, the stem 25 is independently formed and secured in the member 22. Studs 21 are also preferably secured to opposite sides of the member 22 and pass through the yoke-shaped end 28 of a finger piece or pull 29 in pivotally supporting the pull in connection with the member 22. The pull 29 is free to swing from the position shown in full lines in Fig. 2 to that shown in dotted lines in said figure and to assume any position intermediate said first named positions, one of which is indicated in Fig. 3 of the drawings. The yoke-shaped end 28 projects sufficiently beyond the studs 21 to form cam portions 30 which operate upon the top wall l8 to raise the member 22 against the action of a spring 3| disposed upon the stem 25 beneath the inner surface of the hood 2|, so as to raise the part 23 out of engagement with one of the links of the fastener stringers.

In the construction shown, the part 23 is so arranged as to engage the links l2 of the stringer II in retaining the slider against movement on the stringers; thepart 23 being shown in operative position in Figs. 2 and 4, and in inoperative position in Fig. 3.

It will be understood that the member 22 may be composed of metal or of thermoplastic material if desired as is also the case with the pull 29. It will also be apparent that in constructing the device shown in Figs. 1 to 4 inclusive according to the teachings in Figs. 5 and 6, as well as in Figs. 9 and 10, both later described, the

parts

22, 25, and 29 may be assembled as a unit prior to attachment to the slider, in which latter event, the stem 25 and studs 21 may be a unit part of the member 22, as will be apparent.

In Figs. 5 to 8 inclusive, I have shown a modification wherein the slider 32 or the top wall 33 thereof includes an integral strap or hood part 34 which joins the slider at the end 35, whereas the other end 36 is adapted to snap over a projecting hook 31 in coupling said end with the corresponding end of the slider as seen in Fig. 5, andas will appear from a consideration of Fig. 6 of the drawings. The end 36 of the hood part 34 may be also cemented in position if desired.

In this construction, the hood 34 includes adiacent the end 36, depending side walls 38. With this construction, the lock element or member is in the form of a plate 39 having a curved pivot portion 40 forming the pivotal support for a finger piece or pull 4| or the cross-head 42 thereof, the element 39 having a depending pin or pawl part 43 which passes through an aperture 44 in the top wall 33 of the slider. The other end of the element 39 is adapted to rest upon the top wall of the slider andis provided with an aperture 45 for receiving a. coupling pin 46 which is held in position by entering an aperture 41 in the top wall 33, and a corresponding aperture 49 on the inner surface of the hood 34, a spring 49 being disposed on the pin to retain the element in depressed position. This construction will operate primarily the same as the structure shown in-Figs. 1 to'4 inclusive; that is to say, the up.- ward movement of the pull when grasped by the operator will cause the member 39 to be raised as is indicated in dotted lines in Fig. 6 of the drawings.

In Figs. 9 and 10 of the drawings, I have shown or strap 56 is made as an independent part and is secured to the upper surface of the top wall 5| of a slider 52 by cementing or otherwise, and with this construction, the hood or strap 56 is provided with side walls 53 which are simply apertured as seen at 54 to receive the crosshead 42a of a pull similar to the pull 4|. Aside from the foregoing, the structure shown in Figs. 9 and 10, is similar to that shown in Figs. 5 to 8 inclusive with respect to the part 39a which is equivalent to the part 39 and the pin 46a and spring 49a.

As previously stated, the structure shown in Figs. 5 to 10, inclusive, especially with respect to the strap or hood, is applicable to the structure shown in Figs. 1 to 4, inclusive.

It will also be apparent that the parts 39-39a, 46--46a, may be composed of metal or of suitable plastic materials, depending entirely upon the structure of the device as a whole, or the requirements of the merchant or consumer purchasing the same.

It will also be understood that the hood portion of the slider, especially when composed of thermoplastic material, may be formed from a material of one color which would be contrast-.

ing to the color of the remainder of the slider; and this is especially true with the structure such as shown in Figs. 9 and 10.

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

l. A look slider for separable fasteners employing stringers having coupling links spaced longitudinally thereof adapted to be coupled and uncoupled in the longitudinal movement of the slider along said stringers, said slider comprising a channeled body having top and bottom walls, a hood extending longitudinally of said top wall, a pull, means for pivotally supporting the pull in connection with the top wall of said slider, said means comprising a spring actuated member, loosely supported between said hood and top wall, said wall of the slider having an aperture adjacent said member, said member having a pin part movable through the aperture in said slider to project into and out of the channel thereof, the mounting of said member in connection with the slider and hood including a perpendicular rod engaging the hood and top wall of the slider, and a coil spring mounted on said rod and cooperating with said member to normally support the pin thereof in a position projecting into the channel of said slider.

2. A look slider for separable fasteners employing stringers having coupling-links spaced longitudinally thereof adapted to be coupled and uncoupled in the longitudinal movement of the slider along said stringers, said slider comprising a channeled body having top and bottom walls, .a hood extending longitudinally of said top wall, a pull, means for pivotally supporting the pull in connection with the top wall of said slider, said means comprising a spring actuated member loosely supported between said hood and top wall, said wall of the slider having an aperture adjacent said member, said member having a pin part movable through the aperture in said slider to project into and out of the channel thereof, the mounting of said member in connection with the slider and hood including a perpendicular rod engaging the hood and top wall of the slider, a coil spring mounted on said rod and cooperating with said member to normally support the pin thereof in a position projecting into the channel of said slider, means on said pull for withdrawing the pin of said member out of said channel in the operation of grasping and raising the pull for moving the slider longitudinally of the fastener stringers, one end of said hood being integrally united with the slider body, and means on the other end of said hood and corresponding end of the slider body for securing the second named end of the hood to said slider body.

3. In separable fasteners of the class described, a lock slider, said slider comprising a die cast thermoplastic channeled body having a hood portion extending longitudinally thereof, a finger piece for moving said body along the fastener in coupling and uncoupling said fastener, a spring actuated member for pivotally supporting the finger piece to swing freely in the direction of both ends of the slider, a projecting lock element on said member adapted to project into the channel of said slider when the pull is-arranged in a position substantially paralleling the longitudinal plane of the slider, means whereby the upward swinging movement of said finger piece, in the operation of graspiing the same to operate said slider, said lock element is withdrawn from the channel of said slider to permit free movement of the slider longitudinally of the fastener, the mounting of said member in connection with the slider comprising a perpendicularly disposed pin extending into said hood and a spring on said pin cooperating with said member to normally support said lock element in operative position.

4. A lock slider for separable fasteners employing stringers having coupling links spaced longitudinally thereof adapted to be coupled and uncoupled in the longitudinal movement of the slider along said stringers, said slider comprising a channeled body having top and bottom walls, a hood extending longitudinally of said top wall, a pull, means for pivotally supporting the pull in connection with the top wall of said slider, said means comprising a member loosely mounted between said hood and top wall, a vertically disposed phi in said hood and extending through said member to key said member against displacement, said wall of the slider having an aperture adjacent said member, said member having a pin part movable through the aperture in said slider to project into the channel thereof to lock wall, a pull, means for pivotally supporting the pull in connection with the top wall of said slider, said means comprising a member loosely mounted between said hood and top wall, a vertically disposed pin in said hood and extending through said member to key said member against displacement, said wall of the slider having an aperture adjacent said member, said member having a pin part movable through the aperture in said slider to project into the channel thereof to lock the slider, a spring within the hood and cooperating with said member to support the same in locked position, said pin being arranged intermediate and in spaced relation to the ends of said hood, and said pull being movable onto both end portions of the top wall of the slider.

6. In separable fasteners of the class described, a lock slider, said slider comprising a channeled body having top and bottom walls, a spring actuated lock member freely movable toward and from the top wall of the slider, means including a perpendicular pin keying and retaining said member against displacement from said top wall, a pull having a pivot end portion, means on said member engaging the pivot end portion of said pull to form the sole pivot mounting for said pull, alock element on said member normally extending into the channel of the slider to lock the same when the pull substantially parallels the top wall of the slider, and means on the pull cooperating with the top wall of the slider for the upward swinging movement of the pull to withdraw the lock element fromthe channel of the slider for free movement of the slider longitudinally of the fastener.

DAVIS mm.