US2396367A - Bob pin - Google Patents

Description

March l2, 1946.

B. K. GAYLORD ETAL 2,396,367

BOB PIN Fild oct. 21, 1944 2 Sheets-Sheet l March l2, 1946. R K. GAYLoRD ETAL 2,396,357

B0B PIN Filed Oct. 21, 1944 2 Sheets-Sheet 2 pff/5 Il liiiilli E.'

wlllmliliilimlilill Patented Mar. 12, 1946 v UNITED STATES PATENT OFFICE I BOB EIN Ruth K. Gaylord and Irving Richard Green, Chicago, Ill., assignors to Gaylord Products, Incorporated, a corporation of Delaware Application October- 21, 1944, Serial No. 559,677

Claims.

'I'his invention relates to improvements in bob pins and has for an object theA provision of a bob pin which may readily be applied for holding hair in place, and which is not readily displaced from its hair holding position. While all bob pins are designed having the above objects in view, it is an object of the present invention to provide a bob pin which offers greater resistance to displacement than other bob pins heretofore-provided for use. l

It has heretofore been the practice to design bob pins with a relatively large number of crimps in one of the legs, and then to depend upon the clamping force exerted by the legs for preventing displacement of the pin from the hair. It is obvious that bob pins of this type are faulty in design for the following reasons. When the clamping force exerted by the legs is distributed over a relatively large number of crimped surfaces, little resistance to displacement is offered by individual crimps, Further, hair' receiving pockets formed by numerous crimps are so sha1- low that they oiered little resistance to displacement of pins from the hair, and. in fact, often act to defeat the purpose for which they were provided as they tend to urge the bob pin out of engagement with the hair. In futile attempts made to improve the hair engaging action of the legs, hairpins were formed of relatively high carbon spring steel to thereby increasethe clamping force exerted by the legs, and which could only result in an increased cost without improved results.

The present invention contemplates the provision of a bob pin having one leg crimped to provide relative large hair receiving pockets having abutment shoulders arranged to prevent ready disengagement of the pin from the hair.

It is a further object of this invention to provide a hairpin of the clamping type which may be readily opened for clamping engagement with hair.

This invention embodies other novel features which are hereinafter set forth in the specification and claims and illustrated in the accompanying drawings, wherein:

Fig. 1 is a side elevational View showing a clamping type bob pin embodying features of this invention.

Fig. 2 is a top plan view of same. f

Fig. 3 is a side elevational view-illustrating the manner in which a clamping type-bob pin may readily be opened for use. f

Fig. 4 is a side elevational view showing a modiiied form of this'invention.

Fig. 5 is a side elevational view showing another modified form of this invention.

Fig. 6 is a top plan view of same.

Fig. '7l is a side elevational view showing another modifled form of this invention,

Fig. 8 is a side elevational View showing a bob pin ofthe type heretofore known in which relatively'shallow hair engaging pockets were provided for engagement with the hair.

Referring now to the drawings and more particularly to Figs. 1 to 3 therein, a clamping type of bob pin is shown as comprising a pair of legs 8 and 9 connected by a loop II. While the bob pin may be formed of any suitable resilient material, the design illustrated is preferably formed of resilient wire to provide resilient legs of gradually decreasing thickness and gradually increasing width, and a relatively thick non-resilient loop.

' As shown in Fig. 1. the leg 9 is bent inwardly at an angle of from between 35 and 90 from the leg 8 to provide a relatively large hair receiving pocket I3 and a hair locking abutment shoulder I4. It will also be observed that the leg portion I2 and the adjacent portion of the leg 8 are substantially parallel between the loop Il and the abutment shoulder I 4, and due to the relatively short leverage and the relative non-resiliency of the loop portion Il the hair is tightly clamped within this pocket I3 to prevent displacement of the bob pin,

A pair of relatively large capacity hair receiving pockets I6 and I1 are provided between the pocket .I3 and the free ends of the legs by forming the leg 9 with relatively long outwardly divergent side portions I8 and I9, respectively, and inwardly disposed abutment shoulders 2| and 22, respectively. The abutment shoulders 2| and 22 are also disposed at an angle of from 35 to 90 from the leg 8, and the side portions I8 and I9 preferably extend approximately three to four times the length of their abutment shoulders. The inner ends of the abutment shoulders I4, 2| and 22 are preferably normally disposed in engagement with the leg 8. The free-end of the leg 9 is disposed parallel to the leg 8 at 23 and may be bent outwardly therefrom at 24 if desired toprovide an inwardly converging hair receiving opening. It will be observed that the leg 8 extends slightly beyond the end of the leg 9. The leg 8 may be formed either straight or arcuate as shown. l

As illustrated in Fig. 3, a bob pin of the type thus described may readily be opened for use by holding the free end of the leg 8 and the loop I I between the thumb and finger of one hand and then gripping the side portion i9 of the leg 9 between the thumb and iinger of the other hand.

It has heretofore been the practice in the opening of the type oi pin shown in Fig. 8 to insert a finger nail under the free end of the crimped leg, which practice is obviously objectionable due to injuries to the ngers of the user. Fig. 8 further illustrates the manner in which crimps have heretofore been formed in bob pins for the purpose of retaining same. against displacement, but without attaining the desired results due to the fact that little, if any, frictional resistance is oiered by the crimps to displacement of the pin. Obviously; the provision of legs oil'ering greater resistance to opening did not solve the problem and only resulted in greater eiort on the part of the user in opening the bob pin for use,

Fig. 4 shows a modied form of this invention which is similar to the form heretofore shown and described, but in which the portion 24 is turned outwardly adjacent the inner end of the abutment shoulder -22, thereby omittingthe parallel portion 23 shown in Figs. l to 3. v

Figs. 5 and 6 show another modified form of this invention in which the leg 8b is offset at 26, 21 and 28 `for snug engagement against the inner ends of the abutment shoulders I4b, 2lb and 22h. This form of the invention is otherwise similar to the forms heretofore described and shown in Figs. l to 4 in the drawings.

Fig. '7 shows another modified form of this invention in which the leg 8c is formed with recesses 3| and 32 to receive the inner ends of the abutment shoulders Nc and 2|c, and which is other- Wise similar to the form of this invention shown in Figs. 1 to 4.

While this invention has been shown in several forms, Vit is obvious to those skilled in the art that it is not so limited but is susceptible of various changes and modiiications without departpin to serve as abutment shoulders for yieldably resisting displacement of the bob pin from the hair, said outwardly diverging portions being approximately three to four times the length of the outwardly converging portions, that portion of the crimped leg disposed between the abutment shoulder and the connecting loop being substantially parallel to the opposing portion of the other leg.

3. A bob pin formed of round-resilient wire, comprising a loop, a pair of attened legs of gradually increasing width and gradually decreasing thickness depending from said loop, one of said legs being uncrimped` and the other of said legs having relatively long outwardly diverging portions and relatively short outwardly converging portions, said outwardly converging portions being disposed at an angle of from to 75 from the longitudinal axis of the bob pin to serve as abutment shoulders for yieldably resisting displacement of the bob pin from the hair, said outwardly converging portions having their inner ing from the spirit and scope of the claimed invention.

We claim as our invention:

1. A bob Pin formed of round resilient wire. comprising a loop, a pair of flattened legs of gradually increasing width and gradually decreasing thickness depending from said loop, one of said legs having relatively long outwardly diverging portions and relatively short outwardly convergling portions, said outwardly converging portions having their inner ends normally engaging the other leg and being disposed at an angle of from 35 to '75 from the longitudinal axis of the bob pin to serve as abutment shoulders for yieldably resisting displacement of the bob pin from the A hair.

ends normally in engagement with the opposite leg and yieldably resistant to movement therefrom, that portion of the crimped leg disposed between the abutment shoulder and the connecting loop being substantlallyparallel to the opposing portion of the other leg.

4. A bob pin Aformed of round resilient wire, comprising a loop, a pair otattened legs of gradually increasing width and gradually decreasing thickness depending from said loop, one of said legs having relatively long 'outwardly divergingr portions and relatively short outwardly converging portions, said outwardly converging portions having their inner ends normally engaging the other leg and' being disposed at an angle of from 35 to 90 from the longitudinal axis of the bob pin to serve as abutment shoulders for yieldably resisting displacement of the bob pin from the hair, the other of said legs being oii'set adjacent the inner ends of said outwardly converging porI tions to provide a line engagement therewith, the remaining portion of said other leg being disposed in spaced relation to the opposing leg to provide a plurality of relatively large hair receiving pockets. s

5. A'bob pin formed of round resilient wire, comprising a loop, a pair o f flattened legs of gradually increasing width and gradually decreasing thickness depending from said loop, one of said legs having relatively long outwardly diverging portions and relatively short outwardly converging portions, said outwardly converging portions having their inner ends normally engaging the other leg and being disposed at an angle of from 35 to 90 from the longitudinal axis of the bob pin to serve as abutment shoulders for yieldably receiving pockets.

RUTH K. GAYLORD. IRVING RICHARD GREEN.

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