US2537749A

US2537749A - Slider for separable fasteners

Info

Publication number: US2537749A
Application number: US640415A
Authority: US
Inventors: Richard G Gloss
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-01-11
Filing date: 1946-01-11
Publication date: 1951-01-09
Anticipated expiration: 1968-01-09

Description

Jan 9, 1951 R. G. GLOSS 2,537,749

SLIDER FOR SEPARABLE FASTENERS Filed Jan. 11, 1946 INVENTOR.

ATTORNEYS.

Patented Jan. 9, 1951 UNI TED STATES PATENT Q-Fl C E 2,537,749 SLIDER FURSEPARABLE'TASTENERS Richard G. Gloss, Cranston, R. I. Application January 11, 1946, Serial No. 640,415 1 Claim. (Cl. 24-20514) This invention relates to a slider for separable fasteners and more particularly to the pull tab secured to such slider. fasteners, to provide some separate piece extending from the top wall of the slider which is provided with openings for the reception of portions of the pull tab or a pin to connect the pull tab thereto. This requires separate parts and the handling of severalpieces of material in assembly. The pull tab in some cases carries a locking projection and in such cases the locking projection is usually formed from the pull tab by bending a part of the pull tab into position. The bend strains the stock and provides an inherent weakness where the locking projection is so bent.

One of the objects of this invention is to provide a means for attaching a pull tab to a slider without the use of a separate pin or any separate parts.

Another object of this invention is to simplify the construction of a pull tab and slider and the assembly of these parts.

Another object of this invention is to so manipulate the stock of the slider that the pull tab cannot be disengaged from the slider.

Another object of this invention is to provide.

stronger pivot means than where such pivot means are carried by the pull tab.

Another object of this invention is to provide a camming locking action which will be stronger than where projections are bent from the pull tab.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a top plan view of the slider with the pull tab attached;

Fig. 2 is a sectional view illustrating only the upper wall of the slider with the pull tab attached thereto;

Fig. 3 is a view similar to Fig. 2 but on a section taken at right angles thereto;

Fig. 4 is a view similar to Fig. 3, illustrating the pull tab in a different relative position to the slider;

Fig. 5 is a perspective view of the pull tab;

Fig. 6 is a perspective view of the blank showing the pull tab as cut from sheet stock and before being bent into position.

In proceeding with this invention, I cut spaced slots in the upper wall of the slider and raise the strip between these slots which is provided It is usual in separable with trunnions so that these trunnions are readily accessible. I then bend a pull tab from a cutout blank having openings in it and mount these openings on the trunnions and then depress the strip so that the ends of the pull tab move into the slots in the slider and are there locked in position by the edges of the slots.

With reference to the drawings, l0 designates generally the slider and II generally the pull tab. The slider has spaced walls, the upper 01 which is designated l5 and is provided with spaced slots l4, l4 leaving a strip l2 between these slots with slits I 6 and l7, l8 and I9 extending beyond the slots and into top wall l5. In cutting out the slots l4, the strip [2 is left with trunnions I 3 extending laterally therefrom in opposite directions providing a pivot. This strip [2 may be raised from the general plane of the wall I 5 as illustrated in Fig. 4 so as to provide access to the trunnions l3.

The tab H is cut out from sheet stock as illustrated in Fig. 6 and provided with enlarged circular ends 20 each having openings 2|. The tab may be bent as at 22, 23 so as to form the same generally U-shape with the upper surface 24 of the tab being substantially in a single plane while the thickness of this bent stock, shown in Fig. 3, 5, and 6 is greater than the thickness of the sheet stock in the general plane of the pull tab. This U-shape formation provides the openings 2| so that they may be bent toward each other onto the raised trunnions I 3 and then the tab will be set in this position. After which the strip I2 may be depressed so that these enlarged portions 20 will move into the slots I 4 as shown in Figs. 2 and 3 so that the pull tab is locked in position.

In order that the pull tab may serve as a lock for locking the slider to the fasteners, cam portions 25 and 2B are provided extending from the enlarged portion 20 so that asthe pull tab is moved from a position such as shown in Fig. 4 to a position such as shown in Fig. 3 these cam portions will engage the fasteners and hold the slider against movement.

A stop is provided on the bridge portion of the tab to limit its pivotal movement into locked position.

I claim:

A slider for separable fasteners comprising a top wall with its upper surface in substantially a single plane and having spaced slots through the top wall with a strip between, pivot trunnions formed of the same piece of material as' said strip and extending in opposite directionsinto said slots, :3. generally U-shaped pull tab with its ends located in said slots and provided with pivot openings receiving said trunnions, said trunnions being partly below the upper surface of said top wall to lock the pull tab in said 5 slots.

RICHARD G. GLOSS.

Name Date Poux Mar. 14, 1933 15 Number Number Number Name I Date Poux Aug. 7, 1934 Winterhalter Feb. 19, 1935 Gammons Oct. 29, 1935 Marinsky Sept. 26, 1939 Marinsky Jan. 7, 1941 Kohler July 21, 1942 Carlile Nov. 24, 1942 Marlnsky Mar. 28, 1944 FOREIGN PATENTS Country Date Germany of 1934 Italy of 1935