US2256680A

US2256680A - Slider lock for slide fasteners

Info

Publication number: US2256680A
Application number: US387307A
Authority: US
Inventors: Lemmer Frederick
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-04-07
Filing date: 1941-04-07
Publication date: 1941-09-23
Anticipated expiration: 1958-09-23

Description

F. LEMMER SLIDER LOCK FOR SLIDE FASTENERS Sept. 23, 1941.

Filed April '7, 1941 2 Sheets-Sheet l Inventor A Horne Sept. 23, 1941. F. LEMMER SLIDER LOCK FOR SLIDE FASTENERS Filed April 7; 1941 V 2 Sheets-Sheet 2 Attorney Patented Sept. 23, 1941 UNITED snares PATENT OFFICE 4 Claims.

This invention relates to a slider lock for slide fasteners or "zippers," the general object of the invention being to provide a handle which is pivotally connected with the front part of the slider and which has a projection thereon for fitting between some of the inter-engaging coupling or fastening elements of the slide fastener for firmly holding the slider in adjusted position.-

Another object of the invention is to provide spring means for holding the handle in locking position and also to provide means for preventing the handle being pressed too far toward the slider which might cause the locking projection to damage the coupling elements of the zipper.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated inthe accompanying drawings and specifically pointed out in the appended claims. I

In describing the invention in detail, reference will be hadto the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a fragmentary elevational view showing parts of a zipper with the invention applied thereto.

Figure 2'is an edge view of the slider and the parts associated therewith.

Figure 3 is a view similar to Figure 2 but showing the handle in raised position so that the I slider can be moved.

has a laterally extending hole 5 therein adjacent one end thereof and .the other end portion is formed with the recesses or notches 6 in its sides, these notches being elongated and extending longitudinally of the bar and above these notches the bar is rounded as shown at 1, see Figure '7.

Thus this portion of the bar is of a cross-sectional shape which provides a head part at its outer edge and concavities or recesses in its side portion.

A handle member 8 is preferably formed of a single piece of material cut and bent to provide an elongated handle member having the channelshaped part 9 at one end thereof, this part being of short length with its flanges bent inwardly to engage the hole 5, see Figures 2 and 8, so that the handle member is pivoted to the bar 4. Inwardly of the channel-shaped part 9, the handle is formed with an arched part Hi from the side edges of which .wings ll extend and these wings are bent upwardly to form the loops l2 and then 'the wings extend downwardly and'have their free Figure '7 is a section on the line 1-1 of Figure 1.

Figure 8 is a section on the line 8- -8 of Figure 1.

Figure 9 is a view "of the handle and looking toward the underside of the handle.

Figure 10 is a section on the line Ill-l0 of Figure l.

The zipper or slide fastener is, as is well known,

ends bent into rounded hooks I3. These wings as formed as shown in Figure l fo'rm spring jaws with the hooks l3 engaging the notches or recesses Ii in the bar 4 when the handle is in operative position so that the handle is held'to the bar though by pulling the handle outwardly the spring parts will release the bar. Beyond the arched part III the handle is formed with the inwardly extending limbs l4, one of which is provided with a pointed projection IS. The rest of the handle is shaped to form a hand grip as shown at It. Thus part of the limb ll which is free of the projection l5 forms a stop and the other limb I4 has its free end forming a stop, these stops engaging the limb 3 of the slider for limiting movement of the handle toward the slider and this prevents the projection l5 from entering between the elements I a toogreat an extent. Thus it will be seen that when the handle 8 is in raised position as shown in Figure 3 composed of the coupling elements I and the slider 2 which as it passes over the elements I couples them together so as to close the opening in the garment or other object to which the zipper or slide fastener is connected- The slider 2 is of substantially conventional form with the exception that its front limb 3 is made shorter than its rear limb, see Figure 2, and the front face of said front limb has an elongated bar-like member I connected therewith. This member the slider can be moved to open or close the open ing to the edges of which the elements vI are connected. The slider can be moved by gripping the bar 4 or it may be moved by the handle 8. Then when the slider has been moved to the desired extent in a closing movement of the opening the handle 8 is swung from the position shown in Figure 3 to that shown in Figure 2. This will cause the projection l5 to enter between some of the elements i though this penetration is limited by the stops formed by the limbs 14 engagingthe slider. Also, the spring jaws will engage the recesses 6 and thus firmly hold the handle in closed some of the elements I and thus the slider will befirmly locked in adjusted position and it cannot be moved until the handle 8 is forcibly moved from the position shown in Figure 2 to that shown in Figure 3. I Byshortening the front limb 3 it is not necesthat the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts provided that such changes fall within the scope of the appended claims.

Having described the invention, what is claimed as new is: y

1. In a slide fastener, a sliderand coupling elements, a bar on the front face of the slider having recesses in its side edges, a handle pivotally connected with the bar, a projection'on the handle for engaging parts of the coupling elements to lock the slider in adjusted position, and

spring jaws connected with the handle for engag ing,the recesses for holding the handle in position with the projection engaging the coupling elements.

2. In a slide fastener including coupling elements and a slider, a'bar on the front face of the slider having recesses in its side edges, a handle pivotedto the bar, spring jaws connected with the handle for engaging the recesses for holding the handle in closed position, a projection on the handle for engaging portions of the coupling elements to lock the slider in adjusted position, the

. front part of the slider to which the bar is connected being shorter than the rear portion and the projection passing the end of the short part when in operative position.

3. In a slide fastener including, coupling elements and a slider, a bar on the front face of the slider having recesses in its side edges, a handle pivoted to the bar, spring jaws connected with the handle for engaging the recesses for holding the handle in closed position, a projection on the handle for engaging portions of the coupling elements to lock the slider in adjusted position, the front part of the slider to which the bar is connected being shorter than the rear portion and the projection passing the end of the short part when 'in operative position, and a stop formed on the handle engaging the front of the slider for limiting inward movement-of the handle.

4. In combination with a slide fastener including coupling elements and a slider, a bar formed on the front of the slider and having a hole in one end and recesses in the sides thereof, a handle having a channel-shaped part at one end thereof, inwardly extending projections on the flanges for engaging the hole to pivotally connect the handle to the bar, hook-shaped wings on an intermediate part of the handle with the outer limb of each loop extending beyond the other limb and terminating in a rounded gripping part, said gripping parts gripping the recessed part of the'bar for holding the handle in closed position, a pair of limbs extending inwardly from the handle and spaced from the wings, said last-mentioned limbs having flat parts for engaging-the front face of the slider for limiting inward movement of the handle, a projection'on one of the last-mentioned limbs for engaging parts of the coupling elements to prevent movement of the slider and the front limb of the slider being shorter than the rear limb for permitting passage of the pro-.

FREDERICK LEMMER.