US2132038A - Safetypin - Google Patents

Description

Oct. 4, 1938. M|ZER 2,132,038

SAFETYPIN Filed May 5, 1957 f/n e/yfa r G E'ORGE A. MIZE'R Patented Oct. 4, 1938 UNITED STATES PATENT OFFlCE SAFETYPIN .George. A. Mizer, Hinsdale, 111., assignor of onehalf to Ben V. Zillman, St. Louis, Mo.

Application May 5, 1937, Serial No. 140,799

' V 4 Claims. (01. 24-15s)- This invention relates'broadly to safetypins, and has among its objects the production of such pins that will be neat and simple in. construction and operation, economical to make, and other- 5 wise satisfactory and efiicient for use wherever deemed applicable. g

The invention has as its principal object, the production of a safetypin that will not spring its point outwardly when accidentally released, but upon the contrary, will tend to remain in closed position regardless of whether or not the point is released.

Another object of my invention is to so construct the safetypin, that its point has to be pressed away from its guard in order to temporarily hold said point away for insertin'gthe same through the goods tobe pinned.

A further object of my invention is to provide means whereby the possibility of the point accidentally becoming released from its guard is minimized, and so that the guard must be given a separate movement in order to permit of spreading the point away from the guard for any purpose.

Many other objects and advantages of the construction herein shown and described, will be obvious to those skilled in the art to which this invention appertains, from the disclosures herein given.

To this end, my invention consists in the novel construction, arrangement and combination of parts herein shown and described, and the uses mentioned, as will be more clearly pointed out in the claims hereunto appended.

In the drawing, wherein like reference characters indicate like or corresponding parts throughout the views,

Figure 1 is a side elevation of the safetypin, in position to be detached from the material to which it is held;

Figure 2 is an enlarged detail View, showing the point end of the pin in latched position; and

Figure 3 is a detail view of some of the parts shown in Fig. 2, illustrating the manner of maintaining the guard in its longitudinally shifted position.

Referring more particularly to the drawing, wherein I have shown a preferred embodiment of my invention, there is shown a safetypin made up of two main members, namely the pin member and the guard member.

The pin member is preferably formed of the desired length of spring wire, bent to provide a pair of substantially parallel leg portions I-2, joined together intermediate the length of the wire withthe bight portion 3. The free end of one of the legs, as. for example, the leg I, is reduced in cross-section or sharpened, to provide the usual point 4.

It is to be particularly noted at this time, as it is one of the principal objects of my invention, that the leg portions are initially sprung together so that when releasedfthe free ends will be closer together thanv when in their latched position. I

This is exactly the opposite of the usual safetypin, for in the latter, the point springs away from the other or unpointedfree end when unlatched.

A guard or head is mounted atthe free ends of the'pin member, as at 5, said guard being preferably non-rotatably but longitudinally slidable on the free end of the legportion 2, and adapted to releasably receive thepoint 4 of the pin.

Although the securement of the guard to the leg 2 is such that there is a limited longitudinal movement relatively therebetween, yet the point 4 will constantly be seated within the guard at all positions of the latter. Hence, even though the point may be released, purposely or accidentally, it tends to remain in the guard.

A more positive locking means may be provided to prevent accidental release of the point, as by providing an elongated slot or opening in one of the members being interlocked, as in the guard, the ends of the opening being indicated at 6 and l, and which form limit stops as will be explained in further detail.

Intermediate the ends of the opening there is an obstruction 8 to slightly reduce the width of the slot passage, preferably by pressing portions of the guard across said slot. A projection 9 is formed in any desired manner on the adjacent end of the pin leg 2, as by pressing or crimping the material thereof, the width of this projection and its shape being such that it will resiliently press back the obstruction 8, as it is snapped longitudinally therepast in either direction of longitudinal movement, and ride easily in the normal parts of the opening. Obviously, when the projection is on the left of the obstruction, as shown, the point 4 will be furthermost within the guard and accidental release is substantially prevented.

ward the cooperating leg 2, as soon as the force holding it outwardly is relieved.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence I do not wish to be understood as limiting myself to the exact form, arrangement, construction and combination of parts herein shown and described, except as limited by the state of the art to which this invention appe'rtains, and the claims hereunto appended.

' What I claim as new and desire to secure by Letters Patent is:

1. A safetypin comprising a pair of legs con--.

nected at one end and normally sprung together to resist spreading of said legs, one of said legs having a point, a guard longitudinally mounted on the other leg to constantly provide a seat for said point, and means to prevent accidental 1on gitudinal movement of said guard and comprising an elongated opening on said guard, an obstruction intermediate the ends of said opening, and a projection on the leg of said pin movable in said opening'and yieldably engaging said obstruction. I g

2. A safetypin comprising a pair of legs connected at one end and normally sprung together to resist spreading ofthe same, one of said legs provided with a pointedend, a guard longitudinally mounted on the other leg to-releasablyengage said pointed end, and means for preventing accidental movement of .said guard, said means comprising an elongated opening on said guard, a, yieldable obstruction intermediate the ends of said opening, and a projection carried by the leg of the pin that is movable in said guard and resiliently engaging said obstructionwhen passing the latter to either end of said opening.

3. A safetypin comprising a pair of leg elements connected together at one end and normally sprung toward one another toward their other ends to resist spreading of said leg elements, one of said legs being pointed, a guard element longitudinally mounted on the other leg element to constantly provide a seat for said point, and means between said unpointed' leg ele-' ment and said guard element cooperating to prevent accidental longitudinal movement of said guard element, said means comprising an elongated opening on one of said cooperating elements with an obstruction intermediate the ends of said opening, and a projection on the other of said cooperating elements movable in said opening and yieldably, engaging said obstruction.

4. A safetypin comprising a pair of legs connected together at one end and normally sprung towardone another toward their other ends to constantlyresist spreading of said legs, one of said legs being pointed, a guard element longitudinally movably mounted on'the other leg to resiliently, engageable with an obstruction on the other element.

GEORGE A. IVHZER.

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