US2217726A - Shears - Google Patents

Description

Oct. 15, 1940- A; D. BRISON 2,217,726

SHEARS Filed March 18, 1938 IN VENTOR. 194mm" D. BEAM/Y ATTORNEY.

Patented Oct. 15, 1940 UNITED STATES FHCE PATsn'r Application March 18,

3 Claims.

My invention relates to a new and useful improvement in a shears adapted primarily for use as a barbers shears. The shears commonly used by the barber comprises a pair of pivotally 5 mounted blades and experience has shown that through repeated operation of the shears a cramping of the operators hand and wrist is frequently effected. This is due to the fact that in the operation of the shears it is necessary to bring the thumb and the finger into close relation to each other in the cutting movement. There are operations, however, in which it is necessary that the thumb and the finger be brought into close relation to each other in order to permit the proper kind of hair cut and in order to properly operate on the hair.

It is an object of the present invention to provide a shears so constructed and arranged that the same may be operated by the operator without requiring a close approach of the thumb to the finger while at the same time the shears may also be operated when the thumb is brought into .close approach to the finger. In this way a shears is constructed in which the undesirable cramping of the hand is practically eliminated while at the same time a proper operation of.

the shears may be efiected.

Another object of the invention is the provision of a shears having an angularly turned shank on one of the blades carrying a pair of loops or thumb receiving portions positioned closely together and directed angularly outwardly therefrom.

. Another object of the invention is the provision of a shears of this class which will be simple in structure, economical of manufacture, durable, compact and highly efficient in use.

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts hereinafter described and claimed.

The invention will be best understood by a reference to the accompanying drawing which forms a part of this specification, and in which,

Fig. 1 is a perspective view of the invention.

Fig. 2 is a plan view of the invention.

As shown in the drawing, these shears comprise a pair of blades 1 and B pivotally connected together by means of the screw 9. Extending outwardly and formed integral with the blade 1 is the shank H] on the end of which is formed the loop or eyelet H for reception of a finger of the hand. Extending outwardly from the loop II is the curved finger grip l2. In use one of the fingers is projected through the loop II and 1938, Serial No. 196,735

another finger engages against the concave side of the member [2. It will be noted that the shank Iii extends substantially in alignment with the blade 1 and forms adirect continuance thereof. A shank 13 extends outwardly from the end of the blade 8 and this shank I3 is also formed integral with the blade 3. The shank l3, however, does not extend in alignment with the blade 8 but is turned outwardly therefrom to extend angularly thereto. Formed on the end of. the shank it so that the diameter thereof coincides with longitudinal medial line of the shank I3 is a thumb receiving loop or eyelet l1. Secured to this eyelet ll and projecting inwardly therefrom but on a line extended angularly to the longitudinal axis of the shank i3 is a thumb receiving loop [5. This location of the loop I3 is clearly brought out in Fig. 2. It will be noted that the outer end of the loop I5 is positioned beyond the outer end of the loop ll and the common diameter of these loops would not extend at right angles to the longitudinal axis of the shank l3 but would be extended at an acute angle thereto.

When the shears are used for hair-cutting the operator would engage his thumb in the outer loop, that is, in loop ll, throughout the major portion of the operation of hair-cutting. This would enable the operator to open and close the blades 1 and 8 without causing the thumb to move into close approach to the fingers one of which would be projected through the, loop ll. Experience has shown that it is when the thumb is brought into close approach tothe fingers that the strain on the wrist muscles and the cramping of the fingers and hand is efiected. In using the present invention the operator would place his thumb in the loop I! and when so placed, the thumb would not be brought into close approach with the fingers when the blades are being closed and thus the fatigue incident to cutting operations would be avoided. During certain operations in hair-cutting, however, it is necessary that the thumb be brought to .close approach to the fingers of the operators hand; this portion of the operation is commonly referred to as shingling. When performing this part of the hair-cutting operation, the operator would, of course, project his thumb through the loop l5. Consequently, the shears constructed as illustrated are adapted for use in the same manner as, and to perform all of the operations of, the ordinary shears while at the same time provision is made to relieve the operator of the strain commonly encountered.

While I have illustrated and described the preferred form of construction, I do not wish to limit myself to the precise details of structure shown, but desire to avail myself of such variations and modifications as may .come within the scope of the appended claims.

What I claim as new is:

l. A shears of the class described, embodying a pair of blades pivotally connected intermediate their ends; a shank projecting outwardly from the end of each of said blades; a finger-receiving loop on the end of one of said shanks; a thumbreceiving loop on the end of the other of said shanks; an auxiliary thumb loop positioned between the finger loop and the thumb loop and secured to the thumb loop for spacing the thumb loop and the finger loop apart while permitting complete cooperation of said blades.

2. A shears of the class described, embodying a pair of blades pivotally connected intermediate their ends and swingable into overlapped relation upon movement of said blades to closed position; a shank projecting outwardly from the end of each of said blades; a finger-receiving loop on the end of one of said shanks; a thumb-receiving loop on the end of the other of said shanks; an auxiliary thumb loop positioned between said finger loop and said thumb loop and secured to said thumb loop and engageable with said finger loop upon movement of said blades to closed position.

3. A shears of the class described, embodying a pair of blades pivotally connected intermediate their ends and swingable into overlapped rela tion upon movement of said blades to closed position; a shank projecting outwardly from the end of each of said blades; a finger-receiving loop on the end of one of said shanks; a thumbreceiving loop on the end of the other of said shanks; an auxiliary thumb loop positioned between said finger loop and said thumb loop and secured to said thumb loop and movable toward said finger loop upon closing of said blades, said blades, upon closing movement, overlapping each other prior to engagement of said auxiliary thumb loop with said finger loop.

ALBERT D. BRISON

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