US1484131A - Snap fastener - Google Patents

Description

Patented Feb. 19, 1924 UNITED STATES T all whom it may concern:

Be it known that I, WILLIAM H. HoL'r,

a citizen of the United States,- residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Snap Fasteners, of which the followin'gis a specification.

This invention relates to snap fasteners of the class adapted for heavy work, such for instance as on automobile curtains, rubber coats, leather goods and the like, and the object of this invention is 'to improve and simplify such a construction of fastener in which a lockingjawis mounted and is adapted to be manually operated to release the fastener without applying force to disconnect it from its post there by preventing tearing of the goods to which the fastener is attached. 7

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 Figure 1 is a planview of my improved fastener with the top of the casing removed showing the operating mechanism mounted on the lower plate.

Figure 2 is a sectional side elevation of the top member of the casing showing the bendable attaching fingers.

Figure 3 is a sectional side elevation on line 33 of Figure 2 showing the bottom member of the casing with the lugs raised from its stock.

Figure 4 is a perspective view of the jaw member of my improved fastener.

Figure 5 is a central sectional elevation showing my improved fastener as mounted on a heavy piece of goods and connected to a retaining post or stud member.

It is found in practice that where the ordinary snap fastener of this character is employed on heavy work, such as on automobile curtains and the like which must. be pulled to release the fastener from its stud member, that the spring, which must necessarily be rather heavy on this type of fastener, is usually so stifi' that in order to release the fastener by pulling, the goods to which the fastener is attached are often torn. To obviate this difficulty I have pro- SNAP ras rnnnn. ,7 v j l 1171-.

WILLIAM H. HOLT, OF PROVIDENCE, RHODE ISLAND.

Application filed December 27, 1921. Serial No. 525,095.

vided an improved form of fastener with a laterally movable releasing jaw adapted to be manually operated to release the fastener from the stud member thereby permitting the fastener to be removed from the stud without pulling or straining the material to which it is attached, and the following is a detailed description of" one construction of fastener by which thisresult may' be accomplished With reference to the drawings, 10' designates the bottom plate of the casing on which the operating mechanism is mount- I have also cut from the stock and bent upwardly, an operating handle member 16 and in cutting this handle member from the stock at the rear of the jaw, I have formed a recess 17 therein for the reception of the looped portion 18 of the operating bow spring 19. j 1

On thi base plate 10 I have also cut and raised a pair of lugs 20 which engage the opposite outer ends' of this bow spring,.to cause it to exert a closing tension on the jaw member 14. By forming a loop in this spring and causing it to extend into the recess 17 in the rear of the-jaw member this spring is held against a relativeendways movement and is free without other fastening to act against the jaw member to carry it back into engaging position after having been pressed outwardly therefrom.

The upper member 21 of this casing is formed somewhat cup-shape to set over and inclose the operating mechanism and is provided in its upper wall with a slot 22 through which the operatinghandle 16 of the jaw extends and which cooperates with the guide lugs 12 to guide the movement of the jaw to and from operating position. i

This upper casing is provided on its edges with a plurality of comparatively short fingers 23 which are adapted to extend through the slots 24: in the bottom plate and be clinched thereunder to bind the top and bottom members of the fastener casing together.

This upper casing member is also provided with a plurality of longer fingers 25 which are adapted to extend through the slots 26 in the bottom plate, and also through the fabric 27. to be clinched as at 28 beneath the bottom washer 29.

On the outer end of the operating handle 16 I preferably mount a round headed cap 30 which is easy to be engaged by the thumb or finger to withdraw the jaw and which also. prevents catching of the adjacent parts on the handle.

My improved snap fastener is'constructed to be attached to the grooved end 31 of a stud member 32, the same being of suitable size to pass through the central opening into the casing and the groove in the stud being shaped to'receive the jaw 14 of the fastener wherebv the fastener is securely locked thereto.

Such a 'studmay be secured to the base 33 byaanv desired means but I have shown a screw post Men the end of the stud by which it maybe secured in position to the base.

My improved snap fastener is extremely simple and practical in construction [and effective in its operation and by its use a curtain or othermember to which it is fastened may be released from the stud on the adjacent member, by simply moving the operating handle-ofthe jaw outwardly or from'the groove in the stud thereby completely releasing the fastener without the necessity of pulling, tearing or ripping the goods on which it is mounted which is or dinarilv the case where a manually operable releasing jaw is not employed.

The foregoing description is directed solely towards the construction illustrated, but I desire it to'be understood that I reserve the privilege of resorting to all the mechanical changesto which'the device is susceptible, the invention being defined lim- I claim:

1. A snap fastener comprising a circular casing, a gripping jaw in said casing bodily slidable radially to and from operating position, an operating handle extending through a guide slot in the top wall of said casing, integral guide lugs raised from the stock of said casing arranged to cooperate with said handle in its guide slot for guiding the movement of said jaw and limiting the extent of its inward stroke, and a spring acting to return the after it has been withdrawn from engaging position.

2. A snap fastener comprising a casing, a laterally-slidable gripping jaw in said casing, an operating handle on said jaw ex tending through said casing, guides for said jaw insaid casing arranged to also limit the movement of said jaw towards gripping position, a spring acting between said jaw and casing to return the jaw after it has.

been withdrawn from engaging position, and means in said jaw for engaging and preventing a relative endways movement of said spring. 7

3. A snap fastener comprising acasing, a laterally-slidable gripping jaw in said casing, an operating handle on said aw extending through the top of said casing,

guides in said casing for limiting the move ment of said jaw, said jaw being provided with a recess in its outer edgecanda bowspring having a central offset loop entering said recess to position the spring and prevent relative endways movementthereof.

4. A snap fastener comprising a separable casing, a laterally-slidable gripping jaw in said casing and having "an operatinghan- 'dle extending through a guide 'slot in the top wall of said casing, guide lugs in said casing arranged to cooperate with said handle in its guide slot for controllingaand limiting the movement of said jaw, said jaw being provided with a recess in its outer edge. and a bow springfor closing saidjaw and having a central offset loop entering said recess to position the spring and prevent relative endwavs movement thereof.

In testimony whereof I affix my signature. I I I WILLIAM H. .HOLT.

Images