US2583715A - Hair curler - Google Patents

Description

S. SOLOP HAIR CURLER Filed Feb. 2, 1950 INVENTOR.

ATTORNEY Patented Jan. 29, 1952 UNITED STATES PATENT OFFICE.

Sydor Solop, Woodside, N. Y. Application February 2, 1950, Serial No. 141,897

2 Claims. (01. 132-41) My present invention relates to improvements in hair curlers and more particularly to hair curlers having a mandrel swingably mounted within a retainer unit adapted to snap latch to the free end of the mandrel after the strands of hair to be curled have been wound on the mandrel.

Heretofore hair curlers of the usual pivotally connected mandrel and the retainer type have been formed from at least three members. That is, the mandrel, the retainer and a hinge pin for pivotally connecting the mandrel and retainer together. This extra hinge pin is a source of bother as it is required to be inserted separately to join the mandrel and retainer units and makes the manufacture of the product too expensive as it slows down production.

The principal object of this invention is to provide a two piece hair curler with a complete mandrel unit and a complete retainer unit requiring no separate pivot pins.

Another object is to provide for mass productionof mandrels and retainers as completely formed individual units adapted to be quickly snapped together to form a complete hair curler assembly.

The above, other objects and advantages of my invention will more fully appear hereinafter from a consideration of the detailed description which follows, taken together with the accompanying drawings, wherein two embodiments are illustrated.

Figure 1 is a perspective assembled view of one form of my novel two part hair curler in assembled relation and latched position and showing it unassembled in dotted line.

Fig. 2 is a pulled apart fragmentary perspective view of the integral interfitting pivotal con nections between the unitary parts of th'efflrst form of my invention.

Fig, 3 is a pulled apart fragmentary perspective view of the integrally made interiitting pivotal connections between the unitary partsof a second form of my invention.

Fig. 4 is a cross section view of form one taken along the line 4-4 of Figure 1.

Fig. 5 is an assembled cross section viewfof the integral pivotal connections between the mandrel and retainer members of the second form oi. my invention.

Referring to the drawing in detail andflrst with respect to the form illustrated in Figures 1, 2 and 4, there is an elongated curler mandrel II) formed with axially extending square edges I I. Between the edges II the mandrel I0 is formed with elongated grooves I2. The edges II and grooves I2 serve to assist in keeping wound hair strands on the mandrel from slipping.

The mandrel I0 is notched on its free end I3 so as to latch in the head I5 of the retainer member or unit I4. The latch member I6 of the head I5 is a transverse V-lug, which seats in the notched mandrel end I3 when it swings and snaps closed on the novel pivotal unitary connections of my present invention.

These new pivot connections may be formed by molding, forging, carving or casting from the material of their respective parts. The forming process will depend upon the material used, which is preferably of synthetic plastic compounds, such as acrylic resins or the like. For example, the retainer unit I 4 is bowed and yieldably resilient. It is formed opposite to latch head I5 with a pair of apertured spaced apart ears I8 and I9. The ears I8 and I9 project from the inner curve or concave side of the bowed retainer I4 and the apertures 20 and 2| of each ear are axially aligned with each other to receive the pivotal connection of the mandrel I0.

The mandrel ID is formed opposite its notched end I3 with an axially offset single ear 22! similar in shape to the spaced apart apertured ears I8 and I9. Projecting from each side of the ear 22 are axially aligned lugs 23 and 24, which are respectively adapted to snap into one of the aligned apertures 20 and 2| of the ears I8 and I9, respectively.

The joining together of the ears I 8, I9 and 22 by snapping oi the lugs into the apertures may be facilitated by slightly slanting the surface 01' the ears around each aperture and by slightly rounding the ends of the lugs 23 and 24.

' A knurled knob 28 may be formed from the head I5 of the retainer unit I4 to provide for turning the mandrel II] when the units are swung apart in aligned hair curling position.

The second form of my invention illustrated in Figures 3 and 5 includes the same mandrel structure II], II, I2 and I3 and the same bowed retainer structure I4, I5 and I6. However, the ear structures are somewhat reversed and accordingly are given new numerals. For example, the mandrel II) has a single ear 30 formed with an opening or aperture 3I and the resilient bowed retainer unit I4 has a pair of spaced apart ears 32 and 33 each formed with integral lugs 34 and 35 projecting in axial alignment toward each other between their respective ears 32 and 33.

The arrangement of the second form permits rapid snap assembly of the mandrel and retainer ,tirely smooth.

units and provides opposed fiat bearing surfaces between the inner sides of each ear and the fiat sides of the single mandrel ear 30. Also with this arrangement there areno'exterior recesses or projections on the ears 32 and 33 and the exterior surface of this part of the curlers is en- It is desirable to eliminate all recesses and projections on this part of the curler because recesses collect foreign matter and must be cleaned out and projections often become tangled with stray hair strands, thereby interfering with the curlers efiiciency.

Without further description it is believed that my invention will now be clearly understandable and the advantages and improvements thereof over the prior art will be apparent. While I have described and illustrated only two embodiments of my invention in detail, it'is to be expressly understood that other combinations, modifications and arrangements of the parts which will now probably occur to others skilled in the art are to be considered a part hereof.

To determine the. scope, of my invention reference should be had to. the appended claims. I Whatis claimed is:

1. A two-piece hair curler comprising. a resilient bowed retainer unit formed with spaced apart ears at one end and a latch head having a transverse V-lug at the other end, a pair of axially spaced lugs formed from each ear between, the same, and a. mandrel unit having its free end notched to engage the said transverse V--1ug, on the latch head, said mandrel being formed. with an apertured ear, the aperture being, engaged by the said lugs to pivotally connect the: said units, and an axially extending knurled handle formed from the latch head for revolving the mandrel to wind a curl thereon, said mandrel 5 umber 4 being rectangular in cross section and formed with longitudinal grooves in each side, to thereby resist uncurling of a curl on the mandrel.

2. A two-piece hair curler comprising a resilient bowed retainer unit formed with spaced apart cars at one end and a latch head having a transverse V-lug at the other end, a pair of axially spaced lugs formed from each ear between the same, and a mandrel unit having its free end formed with a.v V-notch to engage the said V-lug on the latch head, said mandrel being formed with an apertured ear, the aperture being engaged by the said lugs to pivotally connect the said units, and an axially extending knurled handle formed from the latch head for revolving the mandrel to wind a curl thereon, each of the edges around each aperture being tapered inwardly to facilitate the assembly between the pivotal connections formed by the said ears and lugs.

v 1 SYDOR SOLOB.

REFERENCES CITED The. following referencesare of record in the file of this patent:

UNITED'STATES PATENTS Name Date Statter May 23, 1950 McLaughlin Feb.v 11, 1936 Berliner Apr. 11,, 1939 Vaughn, June 14,1949

' FOREIGN PATENTS- Country 7 Date. France A1312, 27, 1931 Great Britain June 9, 1885 Great Britain Mar. 7, 1894 Number D. 158,698

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